COMBINED CYCLE POWER DEVICE

Abstract

The combined cycle power device of the present invention belongs to the field of energy and power technology. A combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser and a mixed evaporator. A condenser connects a mixed evaporator. An expander connects the mixed evaporator. The mixed evaporator connects a compressor. The mixed evaporator passes through the second expander and connects the condenser. The compressor connects a high-temperature heat exchanger. A high-temperature evaporator connects the high-temperature heat exchanger after that the condenser passes through the second pump and connects the high-temperature evaporator. The high-temperature heat exchanger connects the expander. The high-temperature heat exchanger and the high-temperature evaporator have connect the outside respectively. The condenser connects the outside. The expander connects the compressor and transmits power.

Claims

1. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser and a mixed evaporator; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel connected the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel connected a high-temperature heat exchanger (6), a high-temperature evaporator (7) has a vapor channel connected the high-temperature heat exchanger (6) after that the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects the high-temperature evaporator (7), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), wherein the high-temperature heat exchanger (6) and the high-temperature evaporator (7) have the heat source medium channel connected the outside respectively, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the expander (1) connects the compressor (2) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

2. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser and a mixed evaporator; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel which passes through a high-temperature evaporator (7) and connects the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel connected a high-temperature heat exchanger (6), the high-temperature evaporator (7) has a vapor channel connected the high-temperature heat exchanger (6) after that the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects the high-temperature evaporator (7), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), wherein the high-temperature heat exchanger (6) has the heat source medium channel connected the outside, or the high-temperature evaporator (7) also has the heat source medium channel connected the outside, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the expander (1) connects the compressor (2) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

3. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator and a heating unit; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel which passes through a heating unit (10) and connects the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel connected a high-temperature heat exchanger (6), the high-temperature evaporator (7) has a vapor channel connected the high-temperature heat exchanger (6) after that the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects the high-temperature evaporator (7), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), wherein the high-temperature heat exchanger (6) and the high-temperature evaporator (7) have the heat source medium channel connected the outside respectively, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the heating unit (10) has the heated medium channel connected the outside, the expander (1) connects the compressor (2) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

4. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator and a heating unit; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel which passes through a high-temperature evaporator (7) and a heating unit (10) and connects the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel connected a high-temperature heat exchanger (6), the high-temperature evaporator (7) has a vapor channel connected the high-temperature heat exchanger (6) after that the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects the high-temperature evaporator (7), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), wherein the high-temperature heat exchanger (6) has the heat source medium channel connected the outside, or the high-temperature evaporator (7) also has the heat source medium channel connected the outside, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the heating unit (10) has the heated medium channel connected the outside, the expander (1) connects the compressor (2) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

5. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser and a mixed evaporator; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel connected the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel connected a high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1) through a intermediate vapor inlet channel, the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects a high-temperature evaporator (7), the high-temperature evaporator (7) has a vapor channel connected the expander (1), wherein the high-temperature heat exchanger (6) and the high-temperature evaporator (7) have the heat source medium channel connected the outside respectively, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the expander (1) connects the compressor (2) and transmit power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

6. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser and a mixed evaporator; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel connected the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel connected a high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects a high-temperature evaporator (7), the high-temperature evaporator (7) has a vapor channel connected the expander (1) through a intermediate vapor inlet channel, wherein the high-temperature heat exchanger (6) and the high-temperature evaporator (7) have the heat source medium channel connected the outside respectively, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the expander (1) connects the compressor (2) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

7. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser and a mixed evaporator; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel which passes through a high-temperature evaporator (7) and connects the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel connected a high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1) through a intermediate vapor inlet channel, the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects the high-temperature evaporator (7), the high-temperature evaporator (7) has a vapor channel connected the expander (1), wherein the high-temperature heat exchanger (6) has the heat source medium channel connected the outside, or the high-temperature evaporator (7) also has the heat source medium channel connected the outside, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the expander (1) connects the compressor (2) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

8. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser and a mixed evaporator; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel which passes through a high-temperature evaporator (7) and connects the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel connected a high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects the high-temperature evaporator (7), the high-temperature evaporator (7) has a vapor channel connected the expander (1) through a intermediate vapor inlet channel, wherein the high-temperature heat exchanger (6) has the heat source medium channel connected the outside, or the high-temperature evaporator (7) also has the heat source medium channel connected the outside, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the expander (1) connects the compressor (2) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

9. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator and the third expander; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) and the third expander (11) have a low-pressure vapor channel connected the mixed evaporator (9) respectively, the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel connected a high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), a high-temperature evaporator (7) has a vapor channel connected the third expander (11) after that the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects the high-temperature evaporator (7), wherein the high-temperature heat exchanger (6) and the high-temperature evaporator (7) have the heat source medium channel connected the outside respectively, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the expander (1) connects the compressor (2) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

10. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator, the second compressor and the second high-temperature heat exchanger; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel connected the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel connected a high-temperature heat exchanger (6), a high-temperature evaporator (7) has a vapor channel connected the high-temperature heat exchanger (6) after that the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects the high-temperature evaporator (7), the high-temperature heat exchanger (6) has a vapor channel connected the second compressor (12), the second compressor (12) has a vapor channel which passes through the second high-temperature heat exchanger (13) and connects the expander (1), wherein the high-temperature heat exchanger (6), the high-temperature evaporator (7) and the second high-temperature heat exchanger (13) have the heat source medium channel connected the outside respectively, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the expander (1) connects the compressor (2) and the second compressor (12) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4), the second pump (5) and the second compressor (12) and transmits power.

11. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator, the second compressor and the second high-temperature heat exchanger; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel which passes through a high-temperature evaporator (7) and connects the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel connected a high-temperature heat exchanger (6), the high-temperature evaporator (7) has a vapor channel connected the high-temperature heat exchanger (6) after that the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects the high-temperature evaporator (7), the high-temperature heat exchanger (6) has a vapor channel connected the second compressor (12), the second compressor (12) has a vapor channel which passes through the second high-temperature heat exchanger (13) and connects the expander (1), wherein the high-temperature heat exchanger (6) and the second high-temperature heat exchanger (13) have the heat source medium channel connected the outside respectively, or the high-temperature evaporator (7) also has the heat source medium channel connected the outside, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the expander (1) connects the compressor (2) and the second compressor (12) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4), the second pump (5) and the second compressor (12) and transmits power.

12. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator, the third expander and the second high-temperature heat exchanger; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel connected the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel connected a high-temperature heat exchanger (6), a high-temperature evaporator (7) has a vapor channel connected the high-temperature heat exchanger (6) after that the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects the high-temperature evaporator (7), the high-temperature heat exchanger (6) has a vapor channel connected the third expander (11), the third expander (11) has a vapor channel which passes through the second high-temperature heat exchanger (13) and connects the expander (1), wherein the high-temperature heat exchanger (6), the high-temperature evaporator (7) and the second high-temperature heat exchanger (13) have the heat source medium channel connected the outside respectively, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the expander (1) connects the compressor (2) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

13. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator, the third expander and the second high-temperature heat exchanger; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel which passes through a high-temperature evaporator (7) and connects the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel connected a high-temperature heat exchanger (6), the high-temperature evaporator (7) has a vapor channel connected the high-temperature heat exchanger (6) after that the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects the high-temperature evaporator (7), the high-temperature heat exchanger (6) has a vapor channel connected the third expander (11), the third expander (11) has a vapor channel which passes through the second high-temperature heat exchanger (13) and connects the expander (1), wherein the high-temperature heat exchanger (6) and the second high-temperature heat exchanger (13) have the heat source medium channel connected the outside respectively, or the high-temperature evaporator (7) also has the heat source medium channel connected the outside respectively, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the expander (1) connects the compressor (2) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

14. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator and a high-temperature regenerator; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel which passes through a high-temperature regenerator (14) and connects the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel which passes through the high-temperature regenerator (14) and connects a high-temperature heat exchanger (6), the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects a high-temperature evaporator (7), the high-temperature evaporator (7) has a vapor channel which passes through the high-temperature regenerator (14) and connects the high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), wherein the high-temperature heat exchanger (6) and the high-temperature evaporator (7) have the heat source medium channel connected the outside respectively, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the expander (1) connects the compressor (2) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

15. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator and a high-temperature regenerator; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel which passes through a high-temperature regenerator (14) and a high-temperature evaporator (7) and connects the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel which passes through the high-temperature regenerator (14) and connects a high-temperature heat exchanger (6), the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects the high-temperature evaporator (7), the high-temperature evaporator (7) has a vapor channel which passes through the high-temperature regenerator (14) and connects the high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), wherein the high-temperature heat exchanger (6) has the heat source medium channel connected the outside, or the high-temperature evaporator (7) also has the heat source medium channel connected the outside, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the expander (1) connects the compressor (2) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

16. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator, a heating unit and a high-temperature regenerator; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel which passes through a high-temperature regenerator (14) and a heating unit (10) and connects the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel which passes through the high-temperature regenerator (14) and connects a high-temperature heat exchanger (6), the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects a high-temperature evaporator (7), the high-temperature evaporator (7) has a vapor channel which passes through the high-temperature regenerator (14) and connects the high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), wherein the high-temperature heat exchanger (6) and the high-temperature evaporator (7) have the heat source medium channel connected the outside respectively, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the heating unit (10) has the heated medium channel connected the outside, the expander (1) connects the compressor (2) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

17. A combined cycle power device comprising an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator and a preheater; wherein a condenser (8) has a liquid refrigerant pipe which passes through a pump (4) and connects a mixed evaporator (9), an expander (1) has a low-pressure vapor channel which passes through a preheater (15) and connects the mixed evaporator (9), the mixed evaporator (9) has a low-pressure vapor channel connected a compressor (2), the mixed evaporator (9) has a low-pressure vapor channel which passes through the second expander (3) and connects the condenser (8), the compressor (2) has a vapor channel connected a high-temperature heat exchanger (6), the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and the preheater (15) and connects a high-temperature evaporator (7), the high-temperature evaporator (7) has a vapor channel connected the high-temperature heat exchanger (6), the high-temperature heat exchanger (6) has a vapor channel connected the expander (1), wherein the high-temperature heat exchanger (6) and the high-temperature evaporator (7) have the heat source medium channel connected the outside respectively, the condenser (8) has the cooling medium channel connected the outside, or the mixed evaporator (9) also has the heat source medium channel connected the outside, the expander (1) connects the compressor (2) and transmits power, wherein or the expander (1) connects the compressor (2), the pump (4) and the second pump (5) and transmits power.

18. The device according to any one of claim 1-16, wherein adding the low-temperature regenerator and the third pump, adjusting that the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects the high-temperature evaporator (7) to that the condenser (8) has a liquid refrigerant pipe which passes through the second pump (5) and connects a low-temperature regenerator (16), the compressor (2) adds the vapor extraction channel connected the low-temperature regenerator (16), the low-temperature regenerator (16) has a liquid refrigerant pipe which passes through the third pump (17) and connects the high-temperature evaporator (7), a combined cycle power device is formed.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0024] FIG. 1 is a type 1 example general flow chart of a combined cycle power device provided in the present invention.

[0025] FIG. 2 is a type 2 example general flow chart of a combined cycle power device provided in the present invention.

[0026] FIG. 3 is a type 3 example general flow chart of a combined cycle power device provided in the present invention.

[0027] FIG. 4 is a type 4 example general flow chart of a combined cycle power device provided in the present invention.

[0028] FIG. 5 is a type 5 example general flow chart of a combined cycle power device provided in the present invention.

[0029] FIG. 6 is a type 6 example general flow chart of a combined cycle power device provided in the present invention.

[0030] FIG. 7 is a type 7 example general flow chart of a combined cycle power device provided in the present invention.

[0031] FIG. 8 is a type 8 example general flow chart of a combined cycle power device provided in the present invention.

[0032] FIG. 9 is a type 9 example general flow chart of a combined cycle power device provided in the present invention.

[0033] FIG. 10 is a type 10 example general flow chart of a combined cycle power device provided in the present invention.

[0034] FIG. 11 is a type 11 example general flow chart of a combined cycle power device provided in the present invention.

[0035] FIG. 12 is a type 12 example general flow chart of a combined cycle power device provided in the present invention.

[0036] FIG. 13 is a type 13 example general flow chart of a combined cycle power device provided in the present invention.

[0037] FIG. 14 is a type 14 example general flow chart of a combined cycle power device provided in the present invention.

[0038] FIG. 15 is a type 15 example general flow chart of a combined cycle power device provided in the present invention.

[0039] In the figures, 1—expander, 2—compressor, 3—the second expander, 4—pump, 5—the second pump, 6—high-temperature heat exchanger, 7—high-temperature evaporator, 8—condenser, 9—mixed evaporator (waste heat boiler), 10—heating unit, 11—the third expander, 12—the second condenser, 13—the second high-temperature heat exchanger, 14—high-temperature regenerator, 15—preheater, 16—low-temperature regenerator, 17—the third pump.

DETAILED DESCRIPTION

[0040] The first thing to note is that, when describing the cycle's structures and processes, the processes will not be repeatedly described if not necessary, and the obvious processes will not be described. The detailed description of the present invention is as follows:

[0041] The combined cycle power device in FIG. 1 works as follows:

[0042] (1) Device structure. The combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser and a mixed evaporator. A condenser 8 has a liquid refrigerant pipe which passes through a pump 4 and connects a mixed evaporator 9, an expander 1 has a low-pressure vapor channel connected the mixed evaporator 9, the mixed evaporator 9 has a low-pressure vapor channel connected a compressor 2, the mixed evaporator 9 has a low-pressure vapor channel which passes through the second expander 3 and connects the condenser 8, the compressor 2 has a vapor channel connected a high-temperature heat exchanger 6, a high-temperature evaporator 7 has a vapor channel connected the high-temperature heat exchanger 6 after that the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects the high-temperature evaporator 7, the high-temperature heat exchanger 6 has a vapor channel connected the expander 1. The high-temperature heat exchanger 6 and the high-temperature evaporator 7 have the heat source medium channel connected the outside respectively, the condenser 8 has the cooling medium channel connected the outside, the expander 1 connects the compressor 2 and transmits power.

[0043] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the expander 1, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise, and then enters the high-temperature heat exchanger 6 for heat absorption. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The second current condensate of the condenser 8 flows through the second pump 5 and enters into the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats, and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the high-temperature heat exchanger 6 flows through the expander 1 to depressurize and output work. The low-pressure vapor discharged from the expander 1 enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the high-temperature evaporator 7. The cooling medium takes away the low-temperature heat load through the condenser 8. The expander 1 supplies power to the compressor 2. The expander 1 and the second expander 3 supply power to the outside. The combined cycle power device is formed.

[0044] Combined with FIG. 1, what needs to be declared is:

[0045] (1) The expression “the expander 1 connects the compressor 2 and transmits power” mainly indicates that the power required by the compressor comes from the expander of the device itself rather than from the outside. The obvious connection method is that the four devices are coaxially connected together.

[0046] (2) The work output by the expander is greater than the power required by the compressor generally. Of course, when the output power of the second expander 3 is enough to meet the needs of the compressor 2, the second expander 3 can also provide power to the compressor 2.

[0047] The combined cycle power device in FIG. 2 works as follows:

[0048] (1) Device structure. The combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser and a mixed evaporator. A condenser 8 has a liquid refrigerant pipe which passes through a pump 4 and connects a mixed evaporator 9, an expander 1 has a low-pressure vapor channel which passes through a high-temperature evaporator 7 and connects the mixed evaporator 9, the mixed evaporator 9 has a low-pressure vapor channel connected a compressor 2, the mixed evaporator 9 has a low-pressure vapor channel which passes through the second expander 3 and connects the condenser 8, the compressor 2 has a vapor channel connected a high-temperature heat exchanger 6, the high-temperature evaporator 7 has a vapor channel connected the high-temperature heat exchanger 6 after that the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects the high-temperature evaporator 7, the high-temperature heat exchanger 6 has a vapor channel connected the expander 1. The high-temperature heat exchanger 6 and the high-temperature evaporator 7 have the heat source medium channel connected the outside, the condenser 8 has the cooling medium channel connected the outside, the expander 1 connects the compressor 2 and transmits power.

[0049] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the high-temperature evaporator 7, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise, and then enters the high-temperature heat exchanger 6 for heat absorption. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The second current condensate of the condenser 8 flows through the second pump 5 and enters into the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats, and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the high-temperature heat exchanger 6 flows through the expander 1 to depressurize and output work. The low-pressure vapor discharged from the expander 1 flows through the high-temperature evaporator 7 and enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the high-temperature evaporator 7. The cooling medium takes away the low-temperature heat load through the condenser 8. The expander 1 supplies power to the compressor 2. The expander 1 and the second expander 3 supply power to the outside. The combined cycle power device is formed.

[0050] The combined cycle power device in FIG. 3 works as follows:

[0051] (1) Device structure. The combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator and a heating unit. A condenser 8 has a liquid refrigerant pipe which passes through a pump 4 and connects a mixed evaporator 9, an expander 1 has a low-pressure vapor channel which passes through a heating unit 10 and connects the mixed evaporator 9, the mixed evaporator 9 has a low-pressure vapor channel connected a compressor 2, the mixed evaporator 9 has a low-pressure vapor channel which passes through the second expander 3 and connects the condenser 8, the compressor 2 has a vapor channel connected a high-temperature heat exchanger 6, the high-temperature evaporator 7 has a vapor channel connected the high-temperature heat exchanger 6 after that the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects the high-temperature evaporator 7, the high-temperature heat exchanger 6 has a vapor channel connected the expander 1. The high-temperature heat exchanger 6 and the high-temperature evaporator 7 have the heat source medium channel connected the outside respectively, the condenser 8 has the cooling medium channel connected the outside, the heating unit 10 has the heated medium channel connected the outside, the expander 1 connects the compressor 2 and transmits power.

[0052] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the heating unit 10, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise, and then enters the high-temperature heat exchanger 6 for heat absorption. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The second current condensate of the condenser 8 flows through the second pump 5 and enters into the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats, and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the high-temperature heat exchanger 6 flows through the expander 1 to depressurize and output work. The low-pressure vapor discharged from the expander 1 flows through the heating unit 10 and enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the high-temperature evaporator 7. The cooling medium takes away the low-temperature heat load through the condenser 8. The heated medium takes away the medium-temperature heat load through the heating unit 10. The expander 1 supplies power to the compressor 2. The expander 1 and the second expander 3 supply power to the outside. The combined cycle power device is formed.

[0053] The combined cycle power device in FIG. 4 works as follows:

[0054] (1) Device structure. The combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator and a heating unit. A condenser 8 has a liquid refrigerant pipe which passes through a pump 4 and connects a mixed evaporator 9, an expander 1 has a low-pressure vapor channel which passes through a high-temperature evaporator 7 and a heating unit 10 and connects the mixed evaporator 9, the mixed evaporator 9 has a low-pressure vapor channel connected a compressor 2, the mixed evaporator 9 has a low-pressure vapor channel which passes through the second expander 3 and connects the condenser 8, the compressor 2 has a vapor channel connected a high-temperature heat exchanger 6, the high-temperature evaporator 7 has a vapor channel connected the high-temperature heat exchanger 6 after that the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects the high-temperature evaporator 7, the high-temperature heat exchanger 6 has a vapor channel connected the expander 1. The high-temperature heat exchanger 6 and the high-temperature evaporator 7 have the heat source medium channel connected the outside respectively, the condenser 8 has the cooling medium channel connected the outside, the heating unit 10 has the heated medium channel connected the outside, the expander 1 connects the compressor 2 and transmits power.

[0055] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the heating unit 10, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise, and then enters the high-temperature heat exchanger 6 for heat absorption. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The second current condensate of the condenser 8 flows through the second pump 5 and enters into the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats, and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the high-temperature heat exchanger 6 flows through the expander 1 to depressurize and output work. The low-pressure vapor discharged from the expander 1 flows through the high-temperature evaporator 7 and the heating unit 10 and enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the high-temperature evaporator 7. The cooling medium takes away the low-temperature heat load through the condenser 8. The heated medium takes away the medium-temperature heat load through the heating unit 10. The expander 1 supplies power to the compressor 2. The expander 1 and the second expander 3 supply power to the outside. The combined cycle power device is formed.

[0056] The combined cycle power device in FIG. 5 works as follows:

[0057] (1) Device structure. The combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser and a mixed evaporator. A condenser 8 has a liquid refrigerant pipe which passes through a pump 4 and connects a mixed evaporator 9, an expander 1 has a low-pressure vapor channel connected the mixed evaporator 9, the mixed evaporator 9 has a low-pressure vapor channel connected a compressor 2, the mixed evaporator 9 has a low-pressure vapor channel which passes through the second expander 3 and connects the condenser 8, the compressor 2 has a vapor channel connected a high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected the expander 1 through a intermediate vapor inlet channel, the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects a high-temperature evaporator 7, the high-temperature evaporator 7 has a vapor channel connected the expander 1. The high-temperature heat exchanger 6 and the high-temperature evaporator 7 have the heat source medium channel connected the outside respectively, the condenser 8 has the cooling medium channel connected the outside, the expander 1 connects the compressor 2 and transmits power.

[0058] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the expander 1, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise, and then enters the high-temperature heat exchanger 6 for heat absorption. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The second current condensate of the condenser 8 flows through the second pump 5 and enters into the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats, and then enters the expander 1 to depressurize and output work. The vapor discharged from the high-temperature heat exchanger 6 enters the expander 1 through a intermediate vapor inlet channel to depressurize and output work. The low-pressure vapor discharged from the expander 1 enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the high-temperature evaporator 7. The cooling medium takes away the low-temperature heat load through the condenser 8. The expander 1 supplies power to the compressor 2. The expander 1 and the second expander 3 supply power to the outside. The combined cycle power device is formed.

[0059] The combined cycle power device in FIG. 6 works as follows:

[0060] (1) Device structure. The combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser and a mixed evaporator. A condenser 8 has a liquid refrigerant pipe which passes through a pump 4 and connects a mixed evaporator 9, an expander 1 has a low-pressure vapor channel connected the mixed evaporator 9, the mixed evaporator 9 has a low-pressure vapor channel connected a compressor 2, the mixed evaporator 9 has a low-pressure vapor channel which passes through the second expander 3 and connects the condenser 8, the compressor 2 has a vapor channel connected a high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected the expander 1, the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects a high-temperature evaporator 7, the high-temperature evaporator 7 has a vapor channel connected the expander 1 through the intermediate vapor inlet channel The high-temperature heat exchanger 6 and the high-temperature evaporator 7 have the heat source medium channel connected the outside respectively, the condenser 8 has the cooling medium channel connected the outside, the expander 1 connects the compressor 2 and transmits power.

[0061] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the expander 1, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise, and then enters the high-temperature heat exchanger 6 for heat absorption. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The second current condensate of the condenser 8 flows through the second pump 5 and enters into the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats, and then enters the expander 1 through the intermediate vapor inlet channel to depressurize and output work. The vapor discharged from the high-temperature heat exchanger 6 enters the expander 1 to depressurize and output work. The low-pressure vapor discharged from the expander 1 enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the high-temperature evaporator 7. The cooling medium takes away the low-temperature heat load through the condenser 8. The expander 1 supplies power to the compressor 2. The expander 1 and the second expander 3 supply power to the outside. The combined cycle power device is formed.

[0062] The combined cycle power device in FIG. 7 works as follows:

[0063] (1) Device structure. The combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser and a mixed evaporator. A condenser 8 has a liquid refrigerant pipe which passes through a pump 4 and connects a mixed evaporator 9, an expander 1 has a low-pressure vapor channel which passes through a high-temperature evaporator 7 and connects the mixed evaporator 9, the mixed evaporator 9 has a low-pressure vapor channel connected a compressor 2, the mixed evaporator 9 has a low-pressure vapor channel which passes through the second expander 3 and connects the condenser 8, the compressor 2 has a vapor channel connected a high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected the expander 1 through a intermediate vapor inlet channel, the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects the high-temperature evaporator 7, the high-temperature evaporator 7 has a vapor channel connected the expander 1. The high-temperature heat exchanger 6 and the high-temperature evaporator 7 have the heat source medium channel connected the outside respectively, the condenser 8 has the cooling medium channel connected the outside, the expander 1 connects the compressor 2 and transmits power.

[0064] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the high-temperature evaporator 7, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise, and then enters the high-temperature heat exchanger 6 for heat absorption. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The second current condensate of the condenser 8 flows through the second pump 5 and enters into the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats, and then enters the expander 1 to depressurize and output work. The vapor discharged from the high-temperature heat exchanger 6 enters the expander 1 to depressurize and output work. The low-pressure vapor discharged from the expander 1 flows through the high-temperature evaporator 7 and enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the high-temperature evaporator 7. The cooling medium takes away the low-temperature heat load through the condenser 8. The expander 1 supplies power to the compressor 2. The expander 1 and the second expander 3 supply power to the outside. The combined cycle power device is formed.

[0065] The combined cycle power device in FIG. 8 works as follows:

[0066] (1) Device structure. The combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator and the third expander. A condenser 8 has a liquid refrigerant pipe which passes through a pump 4 and connects a mixed evaporator 9, an expander 1 and the third expander 11 have a low-pressure vapor channel connected the mixed evaporator 9 respectively, the mixed evaporator 9 has a low-pressure vapor channel connected a compressor 2, the mixed evaporator 9 has a low-pressure vapor channel which passes through the second expander 3 and connects the condenser 8, the compressor 2 has a vapor channel connected a high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected the expander 1, a high-temperature evaporator 7 has a vapor channel connected the third expander 11 after that the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects the high-temperature evaporator 7. The high-temperature heat exchanger 6 and the high-temperature evaporator 7 have the heat source medium channel connected the outside respectively, the condenser 8 has the cooling medium channel connected the outside, the expander 1 connects the compressor 2 and transmits power.

[0067] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the expander 1 and the third expander 11, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise, and then enters the high-temperature heat exchanger 6 for heat absorption. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The second current condensate of the condenser 8 flows through the second pump 5 and enters into the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats. And then, the superheats vapor flows through the third expander 11 to depressurize and output work, and then enters the mixed evaporator 9 to release heat and cool down. The vapor discharged from the high-temperature heat exchanger 6 enters the expander 1 to depressurize and output work. The low-pressure vapor discharged from the expander 1 enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the high-temperature evaporator 7. The cooling medium takes away the low-temperature heat load through the condenser 8. The expander 1 supplies power to the compressor 2. The expander 1, the second expander 3 and the third expander 11 supply power to the outside. The combined cycle power device is formed.

[0068] The combined cycle power device in FIG. 9 works as follows:

[0069] (1) Device structure. The combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator, the second compressor and the second high-temperature heat exchanger. A condenser 8 has a liquid refrigerant pipe which passes through a pump 4 and connects a mixed evaporator 9, an expander 1 has a low-pressure vapor channel connected the mixed evaporator 9, the mixed evaporator 9 has a low-pressure vapor channel connected a compressor 2, the mixed evaporator 9 has a low-pressure vapor channel which passes through the second expander 3 and connects the condenser 8, the compressor 2 has a vapor channel connected a high-temperature heat exchanger 6, a high-temperature evaporator 7 has a vapor channel connected the high-temperature heat exchanger 6 after that the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects the high-temperature evaporator 7, the high-temperature heat exchanger 6 has a vapor channel connected the second compressor 12, the second compressor 12 has a vapor channel which passes through the second high-temperature heat exchanger 13 and connects the expander 1. The high-temperature heat exchanger 6, the high-temperature evaporator 7 and the second high-temperature heat exchanger 13 have the heat source medium channel connected the outside respectively, the condenser 8 has the cooling medium channel connected the outside, the expander 1 connects the compressor 2 and the second compressor 12 and transmits power.

[0070] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the expander 1, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise, and then enters the high-temperature heat exchanger 6 for heat absorption. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The second current condensate of the condenser 8 flows through the second pump 5 and enters into the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats, and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the high-temperature heat exchanger 6 flows through the second compressor 12 for pressure rise and temperature rise, flows through the second high-temperature heat exchanger 13 for heat absorption, and then enters the expander 1 to depressurize and output work. The low-pressure vapor discharged from the expander 1 enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6, the high-temperature evaporator 7 and the second high-temperature heat exchanger 13. The cooling medium takes away the low-temperature heat load through the condenser 8. The expander 1 supplies power to the compressor 2 and the second compressor 12. The expander 1 and the second expander 3 supply power to the outside. The combined cycle power device is formed.

[0071] The combined cycle power device in FIG. 10 works as follows:

[0072] (1) Device structure. The combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator, the third expander and the second high-temperature heat exchanger. A condenser 8 has a liquid refrigerant pipe which passes through a pump 4 and connects a mixed evaporator 9, an expander 1 has a low-pressure vapor channel connected the mixed evaporator 9, the mixed evaporator 9 has a low-pressure vapor channel connected a compressor 2, the mixed evaporator 9 has a low-pressure vapor channel which passes through the second expander 3 and connects the condenser 8, the compressor 2 has a vapor channel connected a high-temperature heat exchanger 6, a high-temperature evaporator 7 has a vapor channel connected the high-temperature heat exchanger 6 after that the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects the high-temperature evaporator 7, the high-temperature heat exchanger 6 has a vapor channel connected the third expander 11, the third expander 11 has a vapor channel which passes through the second high-temperature heat exchanger 13 and connects the expander 1. The high-temperature heat exchanger 6, the high-temperature evaporator 7 and the second high-temperature heat exchanger 13 have the heat source medium channel connected the outside respectively, the condenser 8 has the cooling medium channel connected the outside, the expander 1 connects the compressor 2 and transmits power.

[0073] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the high-temperature evaporator 7, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise, and then enters the high-temperature heat exchanger 6 for heat absorption. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The second current condensate of the condenser 8 flows through the second pump 5 and enters into the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats, and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the high-temperature heat exchanger 6 flows through the third expander 11 to depressurize and output work, flows through the second high-temperature heat exchanger 13 for heat absorption, and then enters the expander 1 to depressurize and output work. The low-pressure vapor discharged from the expander 1 flows through the high-temperature evaporator land enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6, the high-temperature evaporator 7 and the second high-temperature heat exchanger 13. The cooling medium takes away the low-temperature heat load through the condenser 8. The expander 1 supplies power to the compressor 2 and the second compressor 12. The expander 1, the second expander 3 and the third expander 11 supply power to the outside. The combined cycle power device is formed.

[0074] The combined cycle power device in FIG. 11 works as follows:

[0075] (1) Device structure. The combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator and a high-temperature regenerator. A condenser 8 has a liquid refrigerant pipe which passes through a pump 4 and connects a mixed evaporator 9, an expander 1 has a low-pressure vapor channel which passes through a high-temperature regenerator 14 and connects the mixed evaporator 9, the mixed evaporator 9 has a low-pressure vapor channel connected a compressor 2, the mixed evaporator 9 has a low-pressure vapor channel which passes through the second expander 3 and connects the condenser 8, the compressor 2 has a vapor channel which passes through the high-temperature regenerator 14 and connects a high-temperature heat exchanger 6, the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects a high-temperature evaporator 7, the high-temperature evaporator 7 has a vapor channel which passes through the high-temperature regenerator 14 and connects the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected the expander 1. The high-temperature heat exchanger 6 and the high-temperature evaporator 7 have the heat source medium channel connected the outside respectively, the condenser 8 has the cooling medium channel connected the outside, the expander 1 connects the compressor 2 and transmits power.

[0076] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the high-temperature regenerator 14, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The second current condensate of the condenser 8 flows through the second pump 5 and enters into the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats. And then, the superheats vapor flows through the high-temperature regenerator 14 and enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the compressor 2 flows through the high-temperature regenerator 14 and enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the high-temperature heat exchanger 6 enters the expander 1 to depressurize and output work. The low-pressure vapor discharged from the expander 1 flows through the high-temperature regenerator 14 and enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the high-temperature evaporator 7. The cooling medium takes away the low-temperature heat load through the condenser 8. The expander 1 supplies power to the compressor 2. The expander 1 and the second expander 3 supply power to the outside. The combined cycle power device is formed.

[0077] The combined cycle power device in FIG. 12 works as follows:

[0078] (1) Device structure. The combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator and a high-temperature regenerator. A condenser 8 has a liquid refrigerant pipe which passes through a pump 4 and connects a mixed evaporator 9, an expander 1 has a low-pressure vapor channel which passes through a high-temperature regenerator 14 and a high-temperature evaporator 7 and connects the mixed evaporator 9, the mixed evaporator 9 has a low-pressure vapor channel connected a compressor 2, the mixed evaporator 9 has a low-pressure vapor channel which passes through the second expander 3 and connects the condenser 8, the compressor 2 has a vapor channel which passes through the high-temperature regenerator 14 and connects a high-temperature heat exchanger 6, the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects the high-temperature evaporator 7, the high-temperature evaporator 7 has a vapor channel which passes through the high-temperature regenerator 14 and connects the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected the expander 1. The high-temperature heat exchanger 6 has the heat source medium channel connected the outside, or the high-temperature evaporator 7 also has the heat source medium channel connected the outside, the condenser 8 has the cooling medium channel connected the outside, the expander 1 connects the compressor 2 and transmits power.

[0079] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the high-temperature evaporator 7, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The second current condensate of the condenser 8 flows through the second pump 5 and enters into the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats. And then, the superheats vapor flows through the high-temperature regenerator 14 and enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the compressor 2 flows through the high-temperature regenerator 14 and enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the high-temperature heat exchanger 6 enters the expander 1 to depressurize and output work. The low-pressure vapor discharged from the expander 1 flows through the high-temperature regenerator 14 and the high-temperature evaporator 7 and enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the high-temperature evaporator 7. The cooling medium takes away the low-temperature heat load through the condenser 8. The expander 1 supplies power to the compressor 2. The expander 1 and the second expander 3 supply power to the outside. The combined cycle power device is formed.

[0080] The combined cycle power device in FIG. 13 works as follows:

[0081] (1) Device structure. The combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator, a heating unit and a high-temperature regenerator. A condenser 8 has a liquid refrigerant pipe which passes through a pump 4 and connects a mixed evaporator 9, an expander 1 has a low-pressure vapor channel which passes through a high-temperature regenerator 14 and a heating unit 10 and connects the mixed evaporator 9, the mixed evaporator 9 has a low-pressure vapor channel connected a compressor 2, the mixed evaporator 9 has a low-pressure vapor channel which passes through the second expander 3 and connects the condenser 8, the compressor 2 has a vapor channel which passes through the high-temperature regenerator 14 and connects a high-temperature heat exchanger 6, the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects a high-temperature evaporator 7, the high-temperature evaporator 7 has a vapor channel which passes through the high-temperature regenerator 14 and connects the high-temperature heat exchanger 6, the high-temperature heat exchanger 6 has a vapor channel connected the expander 1. The high-temperature heat exchanger 6 and the high-temperature evaporator 7 have the heat source medium channel connected the outside respectively, the condenser 8 has the cooling medium channel connected the outside, the heating unit 10 has the heated medium channel connected the outside, the expander 1 connects the compressor 2 and transmits power.

[0082] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the heating unit 10, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The second current condensate of the condenser 8 flows through the second pump 5 and enters into the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats. And then, the superheats vapor flows through the high-temperature regenerator 14 and enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the compressor 2 flows through the high-temperature regenerator 14 and enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the high-temperature heat exchanger 6 enters the expander 1 to depressurize and output work. The low-pressure vapor discharged from the expander 1 flows through the high-temperature regenerator 14 and the heating unit 10 and enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the high-temperature evaporator 7. The cooling medium takes away the low-temperature heat load through the condenser 8. The heated medium takes away the medium-temperature heat load through the heating unit 10. The expander 1 supplies power to the compressor 2. The expander 1 and the second expander 3 supply power to the outside. The combined cycle power device is formed.

[0083] The combined cycle power device in FIG. 14 works as follows:

[0084] (1) Device structure. The combined cycle power device comprises an expander, a compressor, the second expander, a pump, the second pump, a high-temperature heat exchanger, a high-temperature evaporator, a condenser, a mixed evaporator and a preheater. A condenser 8 has a liquid refrigerant pipe which passes through a pump 4 and connects a mixed evaporator 9, an expander 1 has a low-pressure vapor channel which passes through a preheater 15 and connects the mixed evaporator 9, the mixed evaporator 9 has a low-pressure vapor channel connected a compressor 2, the mixed evaporator 9 has a low-pressure vapor channel which passes through the second expander 3 and connects the condenser 8, the compressor 2 has a vapor channel connected a high-temperature heat exchanger 6, the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and the preheater 15 and connects a high-temperature evaporator 7, the high-temperature heat exchanger 6 has a vapor channel connected the expander 1. The high-temperature heat exchanger 6 and the high-temperature evaporator 7 have the heat source medium channel connected the outside respectively, the condenser 8 has the cooling medium channel connected the outside, the expander 1 connects the compressor 2 and transmits power.

[0085] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the preheater 15, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise, and then enters the high-temperature heat exchanger 6 for heat absorption. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The second current condensate of the condenser 8 flows through the second pump 5, flows through the preheater 15 for heat absorption, flows through the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats, and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the high-temperature heat exchanger 6 enters the expander 1 to depressurize and output work. The low-pressure vapor discharged from the expander 1 flows through the preheater 15 and enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the high-temperature evaporator 7. The cooling medium takes away the low-temperature heat load through the condenser 8. The heated medium takes away the medium-temperature heat load through the heating unit 10. The expander 1 supplies power to the compressor 2. The expander 1 and the second expander 3 supply power to the outside. The combined cycle power device is formed.

[0086] The combined cycle power device in FIG. 15 works as follows:

[0087] (1) Device structure. Based on the combined cycle power device in FIG. 1, a low-temperature regenerator and the third pump are added. That the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects the high-temperature evaporator 7 is adjusted to that the condenser 8 has a liquid refrigerant pipe which passes through the second pump 5 and connects a low-temperature regenerator 16. The compressor 2 adds the vapor extraction channel connected the low-temperature regenerator 16. The low-temperature regenerator 16 has a liquid refrigerant pipe which passes through the third pump 17 and connects the high-temperature evaporator 7

[0088] (2) Working processes. The first current condensate of the condenser 8 flows through the pump 4 and enters the mixed evaporator 9 in which it mixes with the low-pressure vapor came from the expander 1, absorbs heat and vaporizes. And then the vapor is divided into two currents. The first current enters the compressor 2 for pressure rise and temperature rise. The second current flows through the second expander 3 to depressurize and output work, and then enters the condenser 8 to release heat and cool down. The vapor entering compressor 2 is divided into two currents after boosting to a certain extent. The first current enters the low-temperature regenerator 16 through the intermediate vapor inlet channel The second current continues to increase pressure and temperature, and then enters the high-temperature heat exchanger 6 for heat absorption. The second current condensate of the condenser 8 flows through the second pump 5 and enters the low-temperature regenerator 16 in which it mixes with the low-pressure vapor came from the compressor 2 for heat absorption. After the extraction vapor is mixed with the condensate, it releases heat and condenses. The condensate of the low-temperature regenerator 16 flows through the third pump 17 and enters the high-temperature evaporator 7 in which it absorbs heat, vaporizes and superheats, and then enters the high-temperature heat exchanger 6 for heat absorption. The vapor discharged from the high-temperature heat exchanger 6 enters the expander 1 to depressurize and output work. The low-pressure vapor discharged from the expander 1 enters the mixed evaporator 9 to release heat and cool down. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 6 and the high-temperature evaporator 7. The cooling medium takes away the low-temperature heat load through the condenser 8. The heated medium takes away the medium-temperature heat load through the heating unit 10. The expander 1 supplies power to the compressor 2. The expander 1 and the second expander 3 supply power to the outside. The combined cycle power device is formed.

[0089] The technical effects of the present invention: the combined cycle power device proposed by the present invention has the following effects and advantages:

[0090] (1) The circulating working medium absorbs heat at high-temperature heat under low pressure. The temperature difference loss between the circulating working medium and the high-temperature heat source is small, which is conducive to improving the thermal efficiency of the system and the safety of the device.

[0091] (2) The circulating working medium mainly relies on the condensation phase transformation process to realize low-temperature heat release. The temperature difference loss between the circulating working medium and the environment is controllable, which is conducive to improving the thermal efficiency.

[0092] (3) The present invention adopts the low-pressure and high-temperature operation mode to work in the high-temperature region. Therefore, the contradiction among thermal efficiency, the working medium's parameters and the material's temperature resistance and pressure resistance abilities, which is common in traditional vapor power devices, can be resolved. The temperature difference loss between the heat source and the circulating medium can be greatly reduced, and the thermal efficiency can be greatly improved.

[0093] (4) In the present invention, the equipment is shared to increase the heat absorption process of the lower cycle (Rankine cycle) and improve the thermal efficiency.

[0094] (5) The present invention only uses a single working medium, which reduce the operation cost and improve the flexibility of thermal device.

[0095] (6) When the high-temperature expander is shared, the number of core equipment is reduced, which is conducive to reducing system investment and improving thermal efficiency.

[0096] (7) The present invention adopts three expansion and double heat absorption processes in the lower cycle, which is conducive to flexible adjustment of working parameters and adaptability.

[0097] (8) The present invention effectively deals with the high-temperature heat source and the variable temperature heat source, the high-quality fuel and the non high-quality fuel, and has a wide range of application.

[0098] (9) On the premise of realizing high thermal efficiency, the device in the present invention can be selected to operate at low pressure, so as to greatly improve the operation safety of the device.

[0099] (10) The present invention can realize the heat recovery of enterprise device simply, actively, safely and efficiently.

[0100] (11) The thermal efficiency improves effectively when the present invention is applied to the lower end of the gas-steam combined cycle.

[0101] (12) When the present invention is applied to the coal-fired thermal system, it can maintain the original advantages of the traditional steam power cycle in which water vapor is used as working medium and has a wide range of working parameters. According to the actual situation, the present invention can work in subcritical, critical, supercritical or ultra supercritical state, etc.