COMBINED CYCLE POWER DEVICE

Abstract

The combined cycle power device is provided in the present invention and belongs to the field of energy and power technology. A combined cycle power device comprises a compressor, an expander, a pump, a high-temperature heat exchanger, a condenser and an evaporator. An evaporator has a vapor channel connected with a high-temperature heat exchanger, a compressor has a vapor channel connected with the high-temperature heat exchanger, the high-temperature heat exchanger has a vapor channel connected with an expander, the evaporator has a low-pressure vapor channel connected with the compressor and the condenser respectively. The high-temperature heat exchanger has the heat source medium channel connected with the outside, the condenser has the cooling medium channel connected with the outside, the evaporator has the heat source medium channel connected with the outside, the expander connects with with the compressor and transmits power.

Claims

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

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

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

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

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

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

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

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

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

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

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

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

13. The device according to any one of claim 1-12, wherein adding the low temperature regenerator and the second pump, adjusting that the condenser (5) has a liquid refrigerant pipe which passes through a pump (3) and connects with the evaporator (6) to that the condenser (5) has a liquid refrigerant pipe which passes through a pump (3) and connects with a low temperature regenerator (12), the compressor (1) adds the vapor extraction channel connected with the low temperature regenerator (12), the low temperature regenerator (12) has a liquid refrigerant pipe which passes through the second pump (13) and connects with the evaporator (6), a combined cycle power device is formed.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0019] FIG. 1 is a type 1 example general flow chart of a combined cycle power device provided in the present invention.

[0020] FIG. 2 is a type 2 example general flow chart of a combined cycle power device provided in the present invention.

[0021] FIG. 3 is a type 3 example general flow chart of a combined cycle power device provided in the present invention.

[0022] FIG. 4 is a type 4 example general flow chart of a combined cycle power device provided in the present invention.

[0023] FIG. 5 is a type 5 example general flow chart of a combined cycle power device provided in the present invention.

[0024] FIG. 6 is a type 6 example general flow chart of a combined cycle power device provided in the present invention.

[0025] FIG. 7 is a type 7 example general flow chart of a combined cycle power device provided in the present invention.

[0026] FIG. 8 is a type 8 example general flow chart of a combined cycle power device provided in the present invention.

[0027] FIG. 9 is a type 9 example general flow chart of a combined cycle power device provided in the present invention.

[0028] FIG. 10 is a type 10 example general flow chart of a combined cycle power device provided in the present invention.

[0029] FIG. 11 is a type 11 example general flow chart of a combined cycle power device provided in the present invention.

[0030] FIG. 12 is a type 12 example general flow chart of a combined cycle power device provided in the present invention.

[0031] FIG. 13 is a type 13 example general flow chart of a combined cycle power device provided in the present invention.

[0032] FIG. 14 is a type 14 example general flow chart of a combined cycle power device provided in the present invention.

[0033] FIG. 15 is a type 15 example general flow chart of a combined cycle power device provided in the present invention.

[0034] In the figures, 1—compressor, 2—expander, 3—circulating pump, 4—high temperature heat exchanger, 5—condenser, 6—evaporator (waste heat boiler), 7—heating unit, 8—high temperature regenerator, 9—the second high—temperature heat exchanger, 10—the second expander, 11—the second compressor, 12—low temperature regenerator, 13—the second pump.

DETAILED DESCRIPTION

[0035] 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:

[0036] The combined cycle power device in FIG. 1 works as follows:

[0037] (1) Device structure. The combined cycle power device comprises a compressor, an expander, a pump, a high-temperature heat exchanger, a condenser and an evaporator. An evaporator 6 has a vapor channel connected with a high-temperature heat exchanger 4 after that a condenser 5 has a liquid refrigerant pipe which passes through a pump 3 and connects with the evaporator 6, a compressor 1 has a vapor channel connected with the high-temperature heat exchanger 4, the high-temperature heat exchanger 4 has a vapor channel connected with an expander 2, the evaporator 6 has a low-pressure vapor channel connected with the compressor 1 and the condenser 5 respectively after that the expander 2 has a low-pressure vapor channel connected with the evaporator 6. The high-temperature heat exchanger 4 has the heat source medium channel connected with the outside, the condenser 5 has the cooling medium channel connected with the outside. The expander 2 connects with with the compressor 1 and transmits power.

[0038] (2) Working processes. The condensate of the condenser 5 flows through the pump 3 and enters into the evaporator 6 in which it absorbs heat, vaporizes and superheats, and then enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from compressor 1 enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from the high-temperature heat exchanger 4 flows through the expander 2 to depressurize and output work. The low-pressure vapor discharged from the expander 2 flows through the evaporator 6 to release heat and cool down, and then is divided into two currents. The first current enters the compressor 1 for pressure rise and temperature rise. The second current enters the condenser 5 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 4. The cooling medium takes away the low-temperature heat load through the condenser 5. The expander 2 supplies power to the compressor 1 and the outside. Or the expander 2 supplies power to the compressor 1, the pump 3 and the outside. The combined cycle power device is formed.

[0039] The combined cycle power device in FIG. 2 works as follows:

[0040] Based on combined cycle power device in FIG. 1, the evaporator 6 adds the heat source medium channel connected with with the outside. The condensate entering the evaporator 6 obtains the heat load provided by the low-pressure vapor and the heat source medium at the same time, heats up, vaporizes and superheats, and then enters the high-temperature heat exchanger 4. The combined cycle power device is formed.

[0041] The combined cycle power device in FIG. 3 works as follows:

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

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

[0044] The combined cycle power device in FIG. 4 works as follows:

[0045] (1) Device structure. The combined cycle power device comprises a compressor, an expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a high-temperature regenerator. An evaporator 6 has a vapor channel which passes through a high-temperature regenerator 8 and connects with a high-temperature heat exchanger 4 after that a condenser 5 has a liquid refrigerant pipe which passes through a pump 3 and connects with the evaporator 6, a compressor 1 has a vapor channel which passes through the high-temperature regenerator 8 and connects with the high-temperature heat exchanger 4, the high-temperature heat exchanger 4 has a vapor channel connected with an expander 2, the expander 2 has a low-pressure vapor channel connected with the high-temperature regenerator 8, the evaporator 6 has a low-pressure vapor channel connected with the compressor 1 and the condenser 5 respectively after that the high-temperature regenerator 8 has a low-pressure vapor channel connected with the evaporator 6. The high-temperature heat exchanger 4 has the heat source medium channel connected with the outside, the condenser 5 has the cooling medium channel connected with the outside, the expander 2 connects with with the compressor 1 and transmits power.

[0046] (2) Working processes. The condensate of the condenser 5 flows through the pump 3 and enters into the evaporator 6 in which it absorbs heat, vaporizes and superheats. The superheated vapor flows through the high-temperature regenerator 8 for heat absorption, and then enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from compressor 1 flows through the high-temperature regenerator 8 for heat absorption, and then enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from the high-temperature heat exchanger 4 flows through the expander 2 to depressurize and output work. The low-pressure vapor discharged from the expander 2 flows through the high-temperature regenerator 8 and the evaporator 6 to release heat and cool down, and then is divided into two currents. The first current enters the compressor 1 for pressure rise and temperature rise. The second current enters the condenser 5 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 4. The cooling medium takes away the low-temperature heat load through the condenser 5. The expander 2 supplies power to the compressor 1 and the outside. Or the expander 2 supplies power to the compressor 1, the pump 3 and the outside. The combined cycle power device is formed.

[0047] The combined cycle power device in FIG. 5 works as follows:

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

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

[0050] The combined cycle power device in FIG. 6 works as follows:

[0051] (1) Device structure. The combined cycle power device comprises a compressor, an expander, a pump, a high-temperature heat exchanger, a condenser and an evaporator. An evaporator 6 has a vapor channel which passes through a intermediate vapor inlet channel and connects with an expander 2 after that a condenser 5 has a liquid refrigerant pipe which passes through a pump 3 and connects with the evaporator 6, a compressor 1 has a vapor channel which passes through a high-temperature heat exchanger 4 and connects with the expander 2, the evaporator 6 has a low-pressure vapor channel connected with the compressor 1 and the condenser 5 respectively after that the expander 2 has a low-pressure vapor channel connected with the evaporator 6. The high-temperature heat exchanger 4 has the heat source medium channel connected with the outside, the condenser 5 has the cooling medium channel connected with the outside, the expander 2 connects with with the compressor 1 and transmits power.

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

[0053] The combined cycle power device in FIG. 7 works as follows:

[0054] (1) Device structure. The combined cycle power device comprises a compressor, an expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a high-temperature regenerator. An evaporator 6 has a vapor channel which passes through a intermediate vapor inlet channel and connects with an expander 2 after that a condenser 5 has a liquid refrigerant pipe which passes through a pump 3 and connects with the evaporator 6, a compressor 1 has a vapor channel which passes through a high-temperature regenerator 8 and a high-temperature heat exchanger 4 and connects with the expander 2, the expander 2 has a low-pressure vapor channel connected with the high-temperature regenerator 8, the evaporator 6 has a low-pressure vapor channel connected with the compressor 1 and the condenser 5 respectively after that the high-temperature regenerator 8 has a low-pressure vapor channel connected with the evaporator 6. The high-temperature heat exchanger 4 has the heat source medium channel connected with the outside, the condenser 5 has the cooling medium channel connected with the outside, the expander 2 connects with with the compressor 1 and transmits power.

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

[0056] The combined cycle power device in FIG. 8 works as follows:

[0057] (1) Device structure. The combined cycle power device comprises a compressor, an expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and the second expander. An evaporator 6 has a vapor channel connected with the second expander 10 after that a condenser 5 has a liquid refrigerant pipe which passes through a pump 3 and connects with the evaporator 6, the second expander 10 has a vapor channel connected with the evaporator 6, a compressor 1 has a vapor channel which passes through a high-temperature heat exchanger 4 and connects with the expander 2, the expander 2 has a low-pressure vapor channel connected with the evaporator 6, the evaporator 6 has a low-pressure vapor channel connected with the compressor 1 and the condenser 5 respectively. The high-temperature heat exchanger 4 has the heat source medium channel connected with the outside, the condenser 5 has the cooling medium channel connected with the outside, the evaporator 6 has the heat source medium channel connected with the outside, the expander 2 and the second expander 10 connect with the compressor 1 and transmits power.

[0058] (2) Working processes. The condensate of the condenser 5 flows through the pump 3 and enters the evaporator 6 in which it absorbs heat, vaporizes and superheats, and then enters the second expander 10 to depressurize and output work. The low-pressure vapor discharged from the second expander 10 enters the evaporator 6 to release heat and cool down. The vapor discharged from the compressor 1 flows through the high-temperature heat exchanger 4 for heat absorption, and then enters the expander 2 to depressurize and output work. The low-pressure vapor discharged from the expander 2 enters the evaporator 6 to release heat and cool down, and then is divided into two currents. The first current enters the compressor 1 for pressure rise and temperature rise. The second current enters the condenser 5 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 4 and the evaporator 6. The cooling medium takes away the low-temperature heat load through the condenser 5. The expander 2 and the second expander 10 supplies power to the compressor 1 and the outside. Or the expander 2 and the second expander 10 supplies power to the compressor 1, the pump 3 and the outside. The combined cycle power device is formed.

[0059] The combined cycle power device in FIG. 9 works as follows:

[0060] (1) Device structure. The combined cycle power device comprises a compressor, an expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator and a heating unit. an evaporator 6 has a vapor channel connects with a high-temperature heat exchanger 4 after that a condenser 5 has a liquid refrigerant pipe which passes through a pump 3 and connects with the evaporator 6, a compressor 1 has a vapor channel connects with the high-temperature heat exchanger 4, the high-temperature heat exchanger 4 has a vapor channel connected with the expander 2, the evaporator 6 has a low-pressure vapor channel connected with a heating unit 7 after that the expander 2 has a low-pressure vapor channel connected with the evaporator 6, the heating unit 7 has a low-pressure vapor channel connected with the compressor 1 and the condenser 5 respectively. The high-temperature heat exchanger 4 has the heat source medium channel connected with the outside, the condenser 5 has the cooling medium channel connected with the outside, the heating unit 7 has the heated medium channel connected with the outside, the expander 2 connects with with the compressor 1 and transmits power.

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

[0062] The combined cycle power device in FIG. 10 works as follows:

[0063] (1) Device structure. The combined cycle power device comprises a compressor, an expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, the second high-temperature heat exchanger and the second compressor. An evaporator 6 has a vapor channel connects with a high-temperature heat exchanger 4 after that a condenser 5 has a liquid refrigerant pipe which passes through a pump 3 and connects with the evaporator 6, a compressor 1 has a vapor channel connects with the high-temperature heat exchanger 4, the high-temperature heat exchanger 4 has a vapor channel connected with the second compressor 11, the second compressor 11 has a vapor channel which passes through the second high-temperature heat exchanger 9 and connects with the expander 2, the evaporator 6 has a low-pressure vapor channel connected with the compressor 1 and the condenser 5 respectively after that the expander 2 has a low-pressure vapor channel connected with the evaporator 6. The high-temperature heat exchanger 4 and the second high-temperature heat exchanger 9 have the heat source medium channels connected with the outside, the condenser 5 has the cooling medium channel connected with the outside, the expander 2 connects with with the compressor 1 and the second compressor 11 and transmits power.

[0064] (2) Working processes. The condensate of the condenser 5 flows through the pump 3 and enters the evaporator 6 in which it absorbs heat, vaporizes and superheats, and then enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from compressor 1 enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from the high-temperature heat exchanger 4 flows through the second compressor 11 to pressurize, the second high-temperature heat exchanger 9 for heat absorption and the expander 2 to depressurize and output work. The low-pressure vapor discharged from the expander 2 flows through the evaporator 6 to release heat and cool down, and then is divided into two currents. The first current enters the compressor 1 for pressure rise and temperature rise. The second current enters the condenser 5 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 4 and the second high-temperature heat exchanger 9. The cooling medium takes away the low-temperature heat load through the condenser 5. The expander 2 supplies power to the compressor 1, the second compressor 11 and the outside. Or he expander 2 supplies power to the compressor 1, the pump 3, the second compressor 11 and the outside. The combined cycle power device is formed.

[0065] The combined cycle power device in FIG. 11 works as follows:

[0066] (1) Device structure. The combined cycle power device comprises a compressor, an expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, the second high-temperature heat exchanger and the second expander. An evaporator 6 has a vapor channel connects with a high-temperature heat exchanger 4 after that a condenser 5 has a liquid refrigerant pipe which passes through a pump 3 and connects with the evaporator 6, a compressor 1 has a vapor channel connects with the high-temperature heat exchanger 4, the high-temperature heat exchanger 4 has a vapor channel connected with the second expander 10, the second expander 10 has a vapor channel which passes through the second high-temperature heat exchanger 9 and connects with the expander 2, the evaporator 6 has a low-pressure vapor channel connected with the compressor 1 and the condenser 5 respectively after that the expander 2 has a low-pressure vapor channel connected with the evaporator 6. The high-temperature heat exchanger 4 and the second high-temperature heat exchanger 9 have the heat source medium channels connected with the outside, the condenser 5 has the cooling medium channel connected with the outside, the expander 2 and the second expander 10 connect with the compressor 1 and transmits power.

[0067] (2) Working processes. The condensate of the condenser 5 flows through the pump 3 and enters the evaporator 6 in which it absorbs heat, vaporizes and superheats, and then enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from compressor 1 enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from the high-temperature heat exchanger 4 flows through the second expander 10 to depressurize and output work, the second high-temperature heat exchanger 9 for heat absorption and the expander 2 to depressurize and output work. The low-pressure vapor discharged from the expander 2 flows through the evaporator 6 to release heat and cool down, and then is divided into two currents. The first current enters the compressor 1 for pressure rise and temperature rise. The second current enters the condenser 5 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 4 and the second high-temperature heat exchanger 9. The cooling medium takes away the low-temperature heat load through the condenser 5. The expander 2 and the second expander 10 supplies power to the compressor 1 and the outside. Or the expander 2 and the second expander 10 supplies power to the compressor 1, the pump 3 and the outside. The combined cycle power device is formed.

[0068] The combined cycle power device in FIG. 12 works as follows:

[0069] (1) Device structure. The combined cycle power device comprises a compressor, an expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, a high-temperature regenerator, the second high-temperature heat exchanger and the second compressor. An evaporator 6 has a vapor channel which passes through a high-temperature regenerator 8 and connects with a high-temperature heat exchanger 4 after that a condenser 5 has a liquid refrigerant pipe which passes through a pump 3 and connects with the evaporator 6, a compressor 1 has a vapor channel which passes through a high-temperature regenerator 8 and connects with a high-temperature heat exchanger 4, the high-temperature heat exchanger 4 has a vapor channel connected with the second compressor 11, the second compressor 11 has a vapor channel which passes through the second high-temperature heat exchanger 9 and connects with the expander 2, the evaporator 6 has a low-pressure vapor channel connected with the compressor 1 and the condenser 5 respectively after that the expander 2 has a low-pressure vapor channel which passes through a high-temperature regenerator 8 and connects with the evaporator 6. The high-temperature heat exchanger 4 and the second high-temperature heat exchanger 9 have the heat source medium channels connected with the outside, the condenser 5 has the cooling medium channel connected with the outside, the expander 2 connects with with the compressor 1 and the second compressor 11 and transmits power.

[0070] (2) Working processes. The condensate of the condenser 5 flows through the pump 3 and enters the evaporator 6 in which it absorbs heat, vaporizes and superheats. The superheated vapor flows through the high-temperature regenerator 8 for heat absorption, and then enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from compressor 1 flows through the high-temperature regenerator 8 for heat absorption, and then enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from the high-temperature heat exchanger 4 flows through the second compressor 11 to pressurize, the second high-temperature heat exchanger 9 for heat absorption and the expander 2 to depressurize and output work. The low-pressure vapor discharged from the expander 2 flows through the high-temperature regenerator 8 and the evaporator 6 to release heat and cool down, and then is divided into two currents. The first current enters the compressor 1 for pressure rise and temperature rise. The second current enters the condenser 5 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 4 and the second high-temperature heat exchanger 9. The cooling medium takes away the low-temperature heat load through the condenser 5. The expander 2 supplies power to the compressor 1, the second compressor 11 and the outside. Or the expander 2 supplies power to the compressor 1, the pump 3, the second compressor 11 and the outside. The combined cycle power device is formed.

[0071] The combined cycle power device in FIG. 13 works as follows:

[0072] (1) Device structure. The combined cycle power device comprises a compressor, an expander, a pump, a high-temperature heat exchanger, a condenser, an evaporator, a high-temperature regenerator, the second high-temperature heat exchanger and the second expander. An evaporator 6 has a vapor channel which passes through a high-temperature regenerator 8 and connects with a high-temperature heat exchanger 4 after that a condenser 5 has a liquid refrigerant pipe which passes through a pump 3 and connects with the evaporator 6, a compressor 1 has a vapor channel which passes through a high-temperature regenerator 8 and connects with a high-temperature heat exchanger 4, the high-temperature heat exchanger 4 has a vapor channel connected with the second expander 10, the second expander 10 has a vapor channel which passes through the second high-temperature heat exchanger 9 and connects with the expander 2, the evaporator 6 has a low-pressure vapor channel connected with the compressor 1 and the condenser 5 respectively after that the expander 2 has a low-pressure vapor channel which passes through a high-temperature regenerator 8 and connects with the evaporator 6. The high-temperature heat exchanger 4 and the second high-temperature heat exchanger 9 have the heat source medium channels connected with the outside, the condenser 5 has the cooling medium channel connected with the outside, the expander 2 and the second expander 10 connect with the compressor 1 and transmits power.

[0073] (2) Working processes. The condensate of the condenser 5 flows through the pump 3 and enters the evaporator 6 in which it absorbs heat, vaporizes and superheats. The superheated vapor flows through the high-temperature regenerator 8 for heat absorption, and then enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from compressor 1 flows through the high-temperature regenerator 8 for heat absorption, and then enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from the high-temperature heat exchanger 4 flows through the second expander 10 to depressurize and output work, the second high-temperature heat exchanger 9 for heat absorption and the expander 2 to depressurize and output work. The low-pressure vapor discharged from the expander 2 flows through the high-temperature regenerator 8 and the evaporator 6 to release heat and cool down, and then is divided into two currents. The first current enters the compressor 1 for pressure rise and temperature rise. The second current enters the condenser 5 to release heat and condense. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 4 and the second high-temperature heat exchanger 9. The cooling medium takes away the low-temperature heat load through the condenser 5. The expander 2 and the second expander 10 supplies power to the compressor 1 and the outside. Or the expander 2 and the second expander 10 supplies power to the compressor 1, the pump 3 and the outside. The combined cycle power device is formed.

[0074] The combined cycle power device in FIG. 14 works as follows:

[0075] (1) Structurally, based on combined cycle power device in FIG. 1, a low temperature regenerator and the second pump is added. That a condenser 5 has a liquid refrigerant pipe which passes through a pump 3 and connects with the evaporator 6 is adjusted for that a condenser 5 has a liquid refrigerant pipe which passes through a pump 3 and connects with a low temperature regenerator 12. The low temperature regenerator 12 has a liquid refrigerant pipe which passes through the second pump 13 and connects with the evaporator 6. The compressor 1 adds a vapor extraction channel connected with the low temperature regenerator 12.

[0076] (2) Working processes. The condensate of the condenser 5 flows through the pump 3 and enters the low temperature regenerator 12 in which it mixes with the vapor extraction from the compressor 1 for heat absorption. The vapor extraction releases and is condensed. The condensate of the low temperature regenerator 12 flows through the second pump 13 and enters the evaporator 6 in which it absorbs heat, vaporizes and superheats, and then enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from compressor 1 enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from the high-temperature heat exchanger 4 flows through the expander 2 to depressurize and output work. The low-pressure vapor discharged from the expander 2 flows through the evaporator 6 to release heat and cool down, and then is divided into two currents. The first current enters the compressor 1 for pressure rise and temperature rise. The second current enters the condenser 5 to release heat and condense. The low-pressure vapor entering the compressor 1 is compressed to the certain extent and then divided into two currents. The first current enters the low temperature regenerator 12 by the intermediate extraction channel. The second current continues to boost pressure and temperature. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 4. The cooling medium takes away the low-temperature heat load through the condenser 5. The expander 2 supplies power to the compressor 1 and the outside. Or the expander 2 supplies power to the compressor 1, the pump 3, the second pump 13 and the outside. The combined cycle power device is formed.

[0077] The combined cycle power device in FIG. 15 works as follows:

[0078] (1) Structurally, based on combined cycle power device in FIG. 3, a low temperature regenerator and the second pump is added. That a condenser 5 has a liquid refrigerant pipe which passes through a pump 3 and connects with the evaporator 6 is adjusted for that a condenser 5 has a liquid refrigerant pipe which passes through a pump 3 and connects with a low temperature regenerator 12. The low temperature regenerator 12 has a liquid refrigerant pipe which passes through the second pump 13 and connects with the evaporator 6. The compressor 1 adds a vapor extraction channel connected with the low temperature regenerator 12.

[0079] (2) Working processes. The condensate of the condenser 5 flows through the pump 3 and enters the low temperature regenerator 12 in which it mixes with the vapor extraction from the compressor 1 for heat absorption. The vapor extraction releases and is condensed. The condensate of the low temperature regenerator 12 flows through the second pump 13 and enters the evaporator 6 in which it absorbs heat, vaporizes and superheats, and then enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from compressor 1 enters the high-temperature heat exchanger 4 for heat absorption. The vapor discharged from the high-temperature heat exchanger 4 flows through the expander 2 to depressurize and output work. The low-pressure vapor discharged from the expander 2 flows through the heating unit 7 to release heat and cool down, and then is divided into two currents. The first current enters the compressor 1 for pressure rise and temperature rise. The second current enters the condenser 5 to release heat and condense. The low-pressure vapor entering the compressor 1 is compressed to the certain extent and then divided into two currents. The first current enters the low temperature regenerator 12 by the intermediate extraction channel. The second current continues to boost pressure and temperature. The heat source medium supplies the driving heat load through the high-temperature heat exchanger 4 and the evaporator 6. The cooling medium takes away the low-temperature heat load through the condenser 5. The heated medium takes away the medium temperature heat load through the heating unit 7. The expander 2 supplies power to the compressor 1 and the outside. Or the expander 2 supplies power to the compressor 1, the pump 3, the second pump 13 and the outside. The combined cycle power device is formed.

[0080] The technical effects of the present invention invention: the combined cycle power device proposed by the present invention has the following effects and advantages:

[0081] (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.

[0082] (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.

[0083] (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.

[0084] (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.

[0085] (5) The present invention only uses a single working medium, which reduce the operation cost and improve the flexibility of thermal device.

[0086] (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.

[0087] (7) 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.

[0088] (8) 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.

[0089] (9) The present invention can realize the heat recovery of enterprise device simply, actively, safely and efficiently.

[0090] (10) The thermal efficiency improves effectively when the present invention is applied to the lower end of the gas-steam combined cycle.

[0091] (11) 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.