Integrated Temperature and Pressure Reducing Device

Abstract

An integrated pressure and temperature reducing device, comprising a secondary steam pipe and a temperature and pressure reducing mechanism arranged within the secondary steam pipe; the temperature and pressure reducing mechanism comprises an upper valve cover and a spool; the spool is provided with a plurality of pressure reducing holes, and a valve stem is inserted at one end of the spool; an end of the valve stem which is close to the spool is provided with a water supply passage, an outer peripheral surface of the valve stem is provided with a plurality of water inlet holes which are in communication with the water supply passage; the other end of the spool is inserted with a temperature reducing water pipe, and an end of the temperature reducing water pipe which is close to the valve stem is provided with a water outlet passage.

Claims

1. An integrated pressure and temperature reducing device, comprising: a secondary steam pipe (1) and a temperature and pressure reduction mechanism disposed inside the secondary steam pipe (1), wherein the temperature and pressure reduction mechanism comprises an upper valve cover (4) and a valve core (5), the valve core (5) is provided thereon with a number of depressurization holes; a valve rod (9) is disposed at one end of the valve core (5), and one end of the valve rod (9) close to the valve core (5) is provided with a water delivery channel (9-1), and the valve rod (9) is provided, on an outer circumferential surface thereof, with a number of water inlet holes (9-2) in communication with the water delivery channel (9-1); a temperature reducing water pipe (10) is disposed at the other end of the valve core (5), one end of the temperature reducing water pipe (10) close to the valve rod (9) is provided with a drainage pipe (10-1), which is in communication with the water delivery channel (9-1), and a number of drainage holes (10-2) are provided on an outer circumferential surface of the temperature reducing water pipe (10) at one end of the temperature reducing water pipe (10) away from the valve core (5), the drainage holes (10-2) are in communication with the drainage pipe (10-1).

2. The integrated pressure and temperature reducing device according to claim 1, further comprising: a casing (6), wherein the casing (6) is sleeved on the temperature reducing water pipe (10), and a cavity (11) is formed between the temperature reducing water pipe (10) and the casing (6); the casing (6) is fixedly connected to the valve core (5); the depressurization holes comprise primary depressurization holes and secondary depressurization holes, wherein the primary depressurization holes are a number of first through holes (7) opened on the valve core (5), and the secondary depressurization holes are second through holes (8) opened on the valve core (5), and the second through holes (8) are in communication with the cavity (11).

3. The integrated pressure and temperature reducing device according to claim 2, wherein an annular groove (12), which is in communication with the second through hole (8), is provided on a contact surface between the valve core (5) and the casing (6); and the casing (6) is provided thereon with a third through hole (13), and the third through hole (13) is in communication with the annular groove (12) and also in communication with the cavity (11).

4. The integrated pressure and temperature reducing device according to claim 1, wherein the upper valve cover (4) is slidably disposed on the valve core (5) and the valve rod (9) fitted with the valve core (5) and the valve rod (9).

5. The integrated pressure and temperature reducing device according to claim 1, wherein the secondary steam pipe (1) is provided with a primary steam pipe (1-1) perpendicular thereto, an actuator (2) is fixedly connected to one end of the secondary steam pipe (1), a temperature reducing water delivery apparatus (3) is fixedly connected to the actuator (2), and one end of the temperature and pressure reduction mechanism is fixedly connected to the executing device (2).

6. The integrated pressure and temperature reducing device according to claim 3, wherein the casing (6) is thermally assembled and fixed to the valve core (5).

7. The integrated pressure and temperature reducing device according to claim 1, wherein a metal gasket (14) is disposed on a contact surface between the valve rod (9) and the temperature reducing water pipe (10), and the metal spacer (14) is also provided on the valve rod (9) between the valve rod (9) and the valve core (5).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Hereinafter, The present disclosure will be further described with reference to the accompanying drawings and embodiments.

[0015] FIG. 1 is a front view showing an integrated pressure and temperature reducing device according to the present disclosure;

[0016] FIG. 2 is a structural schematic diagram illustrating a temperature and pressure reducing mechanism of an integrated pressure and temperature reducing device according to the present disclosure;

[0017] FIG. 3 is a front view showing a temperature and pressure reducing mechanism of an integrated pressure and temperature reducing device according to the present disclosure;

[0018] FIG. 4 is a partial enlarged view of A in FIG. 3;

[0019] FIG. 5 is a structural schematic diagram illustrating an upper valve cover of an integrated pressure and temperature reducing device according to the present disclosure;

[0020] FIG. 6 is a structural schematic diagram illustrating a valve rod of an integrated pressure and temperature reducing device according to the present disclosure;

[0021] FIG. 7 is a structural schematic diagram illustrating a temperature reducing water pipe of an integrated pressure and temperature reducing device according to the present disclosure;

[0022] FIG. 8 is a structural schematic diagram illustrating a valve core of an integrated pressure and temperature reducing device according to the present disclosure;

[0023] FIG. 9 is a structural schematic diagram illustrating a casing of an integrated pressure and temperature reducing device according to the present disclosure.

[0024] In the drawings: 1. secondary steam pipe; 1-1. primary steam pipe; 2. actuator; 3. temperature reducing water delivery apparatus; 4. upper valve cover; 5. valve core; 6. casing; 7. first through hole; 8. second through hole; 9. valve rod; 9-1. water delivery channel; 9-2. water inlet hole; 10. temperature reducing water pipe; 10-1. drainage pipe; 10-2. drainage hole; 11. cavity; 12. annular groove; 13. third through hole; 14. metal gasket.

DETAILED DESCRIPTION

[0025] The present disclosure will now be further described in detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, and are only illustrative of a basic structure of the present disclosure schematically, thus are only illustrative of constitutions related to the present disclosure.

EMBODIMENT 1

[0026] As shown in FIGS. 1, 2, 6, 7, 8 and 9, an integrated pressure and temperature reducing device includes a secondary steam pipe 1 and a temperature and pressure reduction mechanism disposed inside the secondary steam pipe 1. The temperature and pressure reduction mechanism includes an upper valve cover 4 and a valve core 5, which is provided thereon with a number of depressurization holes. A valve rod 9 is disposed at one end of the valve core 5, and one end of the valve rod 9 close to the valve core 5 is provided with a water delivery channel 9-1, and the valve rod 9 is provided, on an outer circumferential surface thereof, with a number of water inlet holes 9-2 in communication with the water delivery channel 9-1. A temperature reducing water pipe 10 is disposed at the other end of the valve core 5, one end of the temperature reducing water pipe 10 close to the valve rod 9 is provided with a drainage pipe 10-1, which is in communication with the water delivery channel 9-1, and a number of drainage holes 10-2 are provided on an outer circumferential surface of the temperature reducing water pipe 10 at one end of the temperature reducing water pipe 10 away from the valve core 5, the drainage holes 10-2 are in communication with the drainage pipe 10-1.

[0027] As shown in FIGS. 2, 3 and 4, the integrated pressure and temperature reducing device further includes a casing 6, wherein the casing 6 is sleeved on the temperature reducing water pipe 10, and a cavity 11 is formed between the temperature reducing water pipe 10 and the casing 6. The casing 6 is fixedly connected to the valve core 5. The depressurization holes include primary depressurization holes and secondary depressurization holes, wherein the primary depressurization holes are a number of first through holes 7 opened on the valve core 5, and the secondary depressurization holes are second through holes 8 opened on the valve core 5, and the second through holes 8 are in communication with the cavity 11.

[0028] As shown in FIGS. 3 and 4, an annular groove 12, which is in communication with the second through hole 8, is provided on a contact surface between the valve core 5 and the casing 6. The casing 6 is provided thereon with a third through hole 13, which is in communication with the annular groove 12, and also in communication with the cavity 11.

[0029] As shown in FIGS. 2, 3 and 5, the upper valve cover 4 is slidably disposed on the valve core 5 and the valve rod 9 to match them.

[0030] As shown in FIG. 1, the secondary steam pipe 1 is provided with a primary steam pipe 1-1 perpendicular thereto, an actuator 2 is fixedly connected to one end of the secondary steam pipe 1, a temperature reducing water delivery apparatus 3 is fixedly connected to the actuator 2, and one end of the temperature and pressure reduction mechanism is fixedly connected to the executing device 2.

[0031] The casing 6 is thermally assembled and fixed to the valve core 5.

[0032] As shown in FIGS. 3 and 4, a metal gasket 14 is disposed on a contact surface between the valve rod 9 and the temperature reducing water pipe 10, and the metal spacer 14 is also provided on the valve rod 9 between the valve rod 9 and the valve core 5.

[0033] When the above-described integrated pressure and temperature reducing device is in operation, first, the actuator 2 adjusts the valve rod 9, and adjusts the upper valve cover 4 to control the temperature reducing water. The temperature reducing water is inputted by the temperature reducing water delivery apparatus 3, and flows into the water delivery channel 9-1 of the valve rod 9 through the water inlet holes 9-2, and enters the drainage pipe 10-1 of the temperature reducing water pipe 10 from the water delivery channel 9-1, and then is discharged from the drainage holes 10-2; at the same time, primary steam is transported by the primary steam pipe 1-1, and an input amount of the primary steam is controlled by adjusting the valve core 5, when an opening degree of the valve core 5 is small, the primary steam is mixed with the temperature reducing water after being cooled by a wall of the temperature reducing water pipe 10, in this way, a better cooling effect can be achieved; and when the valve core 5 is in a fully-open state, a portion of the primary steam is mixed with the temperature reducing water after being cooled due to the contact with the wall of the temperature reducing water pipe 10, and the other portion of the primary steam is decompressed by the valve core 5 and directly enters to be mixed with the temperature reducing water. The secondary steam pipe 1 is provided with the primary steam pipe 1-1 perpendicular thereto, the actuator 2 is fixedly connected to one end of the secondary steam pipe 1, the temperature reducing water delivery apparatus 3 is fixedly connected to the actuator 2, and one end of the temperature and pressure reduction mechanism is fixedly connected to the executing device 2, which changes an installation manner of an original integrated temperature and pressure reducing valve, improves temperature regulation accuracy of the temperature and pressure reducing valve, and also reduces an installation space of the entire device to make the structure more compact. In view of the above-described embodiments of the present disclosure, various changes and modifications can be made by those skilled in the art without departing from the scope of the technical idea of the present disclosure. The technical scope of the present disclosure is not limited to the contents of the specification, and the technical scope thereof must be determined according to the scope of the claims.