CN212297685U

CN212297685U - Closed circulating cooling water regulating valve

Info

Publication number: CN212297685U
Application number: CN202020866255.7U
Authority: CN
Inventors: 朱涛; 宋健彬; 唐蔚
Original assignee: Hangzhou Fuyang Nanfang Valve Industry Co ltd
Current assignee: Hangzhou Fuyang Nanfang Valve Industry Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-01-05
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses a closed circulating cooling water regulating valve, which comprises a valve body, a valve cover, a sleeve, a valve rod, a valve core and an actuating mechanism, wherein the actuating mechanism comprises a motor and a threaded rod, one end of the valve cover is fixed with an actuating bottom cover, one end of the actuating bottom cover is fixed with an actuating top cover, the motor is fixed on the actuating top cover, an output shaft of the motor is fixedly connected with the threaded rod, the actuating bottom cover is provided with a rotating rod which is matched with the actuating bottom cover in a rotating way, the rotating rod is provided with a first sliding groove, one end of the valve rod, which is positioned at the upper side of the actuating bottom cover, is fixed with a fixed rod, the fixed rod is arranged in the first sliding groove, the fixed rod is matched with the first sliding groove in a sliding way, the threaded rod is provided with a moving block in a threaded fit with the threaded rod, the moving block, high sealing performance and low practicability.

Description

Closed circulating cooling water regulating valve

Technical Field

The utility model relates to a governing valve technical field, in particular to closed recirculated cooling water regulating valve.

Background

The regulating valve is also called a control valve, and in the field of industrial automation process control, the final control element for changing the process parameters of medium flow, pressure, temperature, liquid level and the like by power operation through receiving the control signal output by a regulating control unit. Generally consisting of an actuator and a valve.

The traditional actuating mechanism of the regulating valve is a pneumatic actuating mechanism, however, the requirement for using the pneumatic actuating mechanism is high, high sealing performance is needed, and the practicability is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a closed recirculated cooling water regulating valve, it is higher to have solved the requirement that pneumatic actuator used, needs higher leakproofness, problem that the practicality is not high.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a closed circulating cooling water regulating valve comprises a valve body, a valve cover connected with the valve body through a bolt, a sleeve fixed in the valve body, a valve rod arranged in the valve cover and in sliding fit with the valve cover, a valve core arranged in the sleeve and fixed with one end of the valve rod, and an executing mechanism arranged on the valve cover and used for controlling the movement of the valve rod, wherein an opening is formed in the sleeve, an S-shaped channel is formed in the valve body, the executing mechanism comprises a motor and a threaded rod, an executing bottom cover is fixed at one end, far away from the valve body, of the valve cover through the bolt, an executing top cover is fixed at one end, far away from the valve cover, of the executing bottom cover through the bolt, the motor is fixed at one side, close to the executing bottom cover, of the motor, an output shaft of the motor is fixedly connected with the threaded rod, one end, far away, the improved automatic return device comprises a rotating rod, a first sliding groove is formed in the rotating rod, one end of a valve rod penetrates through an execution bottom cover, a fixed rod is fixed at one end, located on the upper side of the execution bottom cover, of the first valve rod and arranged in the first sliding groove in a sliding fit mode, a moving block in threaded fit with a threaded rod is arranged on the threaded rod, a sliding rod is fixed on the moving block, a second sliding groove is formed in one end of the rotating rod and arranged in the second sliding groove in a sliding fit mode, a limiting rod is fixed between the execution bottom cover and the execution top cover and penetrates through the moving block and is in sliding fit with the moving block, and a return assembly is arranged on the valve rod.

Adopt above-mentioned technical scheme, when the switch of governing valve will be controlled, the starter motor, the output shaft of motor rotates and drives the threaded rod and rotate, the threaded rod rotates and drives the movable block and move, the movable block moves and drives the slide bar and move, the slide bar removes and drives the bull stick and rotate, the bull stick rotates and drives the dead lever and moves, the dead lever removes and drives the valve rod and move, the valve rod removes and drives the case and move, the case rebound, the governing valve is opened, the case moves down, the governing valve is closed, the movable block can only move along the gag lever post, the gag lever post has played and has prevented movable block pivoted effect, after the motor is closed, the valve rod is.

As preferred, reply the subassembly and include annular recovery piece and spring, annular recovery groove has been seted up on the valve gap outside the valve rod, annular recovery piece sets up in annular recovery inslot, annular recovery piece and annular recovery groove sliding fit, the spring sets up in annular recovery inslot, the one end of spring all with annular recovery tank bottom fixed connection, the other end of spring all replies the piece with the annular and fixes.

Adopt above-mentioned technical scheme, valve rod downstream drives annular answer piece downstream, and annular answer piece removes and drives the spring compression, and the spring compression produces elasticity, and when will opening the governing valve, the motor reversal, the elasticity of spring drive annular answer piece rebound, and annular answer piece rebound drives valve rod rebound, and valve rod rebound drives case rebound, and the governing valve is opened this moment, has played the supplementary effect of opening the governing valve.

Preferably, an annular groove is formed in the position, close to the valve rod, of the valve body, sealing packing is arranged in the annular groove, and a packing gland connected with the valve cover through a bolt is arranged on the upper side of the sealing packing.

By adopting the technical scheme, the packing gland can be taken off to replace sealing packing, and the sealing packing plays a role in increasing the sealing property between the valve rod and the valve cover.

Preferably, a first sealing gasket is arranged between the sleeve and the valve body, a second sealing gasket is arranged between the valve rod and the valve core, and a third sealing gasket is arranged between the valve rod and the execution bottom cover.

By adopting the technical scheme, the first sealing gasket plays a role in increasing the sealing property between the sleeve and the valve body, the second sealing gasket plays a role in increasing the sealing property between the valve rod and the valve core, and the third sealing gasket plays a role in increasing the sealing property between the valve rod and the execution bottom cover.

Preferably, a controller is fixed to the execution top cover.

By adopting the technical scheme, the controller plays a role in controlling the motor.

Preferably, both ends of the valve body are provided with connecting holes.

By adopting the technical scheme, the regulating valve and the external pipeline are connected through the connecting hole.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

FIG. 2 is a schematic view showing the inside of the regulator valve in cross section;

fig. 3 is a schematic structural diagram for showing an actuator.

Reference numerals: 1. a valve body; 2. a valve cover; 3. a sleeve; 4. a valve stem; 5. a valve core; 6. an actuator; 7. an opening; 8. an S-shaped channel; 9. a motor; 10. a threaded rod; 11. executing the bottom cover; 12. executing the top cover; 13. a rotating rod; 14. a first sliding chute; 15. fixing the rod; 16. a moving block; 17. a slide bar; 18. a second chute; 19. a limiting rod; 20. a reply component; 21. an annular recovery groove; 22. an annular recovery block; 23. a spring; 24. an annular groove; 25. sealing and filling; 26. a packing gland; 27. a first sealing gasket; 28. a second sealing gasket; 29. a third sealing gasket; 30. a controller; 31. and connecting the holes.

Detailed Description

The following is only the preferred embodiment of the present invention, the protection scope is not limited to this embodiment, and all technical solutions belonging to the idea of the present invention should belong to the protection scope of the present invention. It should also be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and such modifications and decorations should also be regarded as the protection scope of the present invention.

Referring to fig. 1 to 3, a closed circulating cooling water regulating valve comprises a valve body 1, a valve cover 2 connected with the valve body 1 through a bolt, a sleeve 3 fixed in the valve body 1, a valve rod 4 arranged in the valve cover 2 and in sliding fit with the valve cover 2, and a valve core 5 arranged in the sleeve 3 and fixed at one end of the valve rod 4, and further comprises an actuating mechanism 6 arranged on the valve cover 2 and used for controlling the movement of the valve rod 4, wherein an opening 7 is formed in the sleeve 3, an S-shaped channel 8 is formed in the valve body 1, connecting holes 31 are formed in two ends of the valve body 1, the adjusting valve is connected with an external pipeline through the connecting holes 31, the actuating mechanism 6 comprises a motor 9 and a threaded rod 10, an actuating bottom cover 11 is fixed at one end of the valve cover 2 far away from the valve body 1 through a bolt, an actuating top cover 12 is fixed at one end of the actuating bottom, an output shaft of a motor 9 is fixedly connected with a threaded rod 10, one end of the threaded rod 10, far away from the motor 9, is in threaded fit with an execution bottom cover 11, a controller 30 is fixed on an execution top cover 12, when the adjusting valve is closed, the controller 30 is pressed down to start the motor 9, the output shaft of the motor 9 rotates to drive the threaded rod 10 to rotate, a moving block 16 in threaded fit with the threaded rod 10 is arranged on the threaded rod 10, a sliding rod 17 is fixed on the moving block 16, a rotating rod 13 in rotational fit with the execution bottom cover 11 is arranged on the execution bottom cover 11, a sliding groove II 18 is formed in one end of the rotating rod 13, the sliding rod 17 is arranged in the sliding groove II 18, the sliding rod 17 is in sliding fit with the sliding groove II 18, the threaded rod 10 rotates to drive the moving block 16 to move, the moving block 16 moves to drive the sliding rod 17, the, one end of the first valve rod 4, which is located at the upper side of the execution bottom cover 11, is fixed with a fixing rod 15, the fixing rod 15 is arranged in the first sliding groove 14, the fixing rod 15 is in sliding fit with the first sliding groove 14, the rotating rod 13 rotates to drive the fixing rod 15 to move, the fixing rod 15 moves to drive the valve rod 4 to move, the valve rod 4 moves to drive the valve core 5 to move, the valve core 5 moves upwards, the regulating valve is opened, the valve core 5 moves downwards, the regulating valve is closed, a limiting rod 19 is fixed between the execution bottom cover 11 and the execution top cover 12, the limiting rod 19 penetrates through the moving block 16 and the limiting rod 19 is in sliding fit with the moving block 16, the moving block 16 can only move along.

As shown in fig. 2, a return assembly 20 is disposed on the valve rod 4, the return assembly 20 includes an annular return block 22 and a spring 23, an annular return groove 21 is disposed on the valve cover 2 outside the valve rod 4, the annular return block 22 is disposed in the annular return groove 21, the annular return block 22 is in sliding fit with the annular return groove 21, the spring 23 is disposed in the annular return groove 21, one end of the spring 23 is fixedly connected to the bottom of the annular return groove 21, the other end of the spring 23 is fixed to the annular return block 22, during the process of closing the regulating valve, the valve rod 4 moves while driving the annular return block 22 to move, the annular return block 22 moves to drive the spring 23 to compress, the spring 23 compresses to generate an elastic force, when the regulating valve is to be opened, the output shaft of the motor 9 rotates reversely, the elastic force of the spring 23 drives the annular return block 22 to move upward, the annular return block 22 moves upward to drive the valve rod 4 to move upward, the valve rod 4 moves upwards to drive the valve core 5 to move upwards, and the regulating valve is opened at the moment, so that the function of opening the regulating valve in an auxiliary mode is achieved.

As shown in fig. 2, an annular groove 24 is formed in the valve body 1 near the valve rod 4, a sealing packing 25 is arranged in the annular groove 24, a packing gland 26 connected with the valve cover 2 through a bolt is arranged on the upper side of the sealing packing 25, the packing gland 26 is removed to replace the sealing packing 25, and the sealing packing 25 plays a role in increasing the sealing performance between the valve rod 4 and the valve cover 2.

As shown in fig. 2, a first sealing gasket 27 is arranged between the sleeve 3 and the valve body 1, a second sealing gasket 28 is arranged between the valve rod 4 and the valve core 5, a third sealing gasket 29 is arranged between the valve rod 4 and the actuator bottom cover 11, the first sealing gasket 27 plays a role in increasing the sealing performance between the sleeve 3 and the valve body 1, the second sealing gasket 28 plays a role in increasing the sealing performance between the valve rod 4 and the valve core 5, and the third sealing gasket 29 plays a role in increasing the sealing performance between the valve rod 4 and the actuator bottom cover 11.

Claims

1. A closed circulating cooling water regulating valve comprises a valve body (1), a valve cover (2) connected with the valve body (1) through a bolt, a sleeve (3) fixed in the valve body (1), a valve rod (4) arranged in the valve cover (2) and in sliding fit with the valve cover (2), and a valve core (5) arranged in the sleeve (3) and fixed with one end of the valve rod (4), and is characterized by further comprising an executing mechanism (6) arranged on the valve cover (2) and used for controlling the valve rod (4) to move, an opening (7) is formed in the sleeve (3), an S-shaped channel (8) is formed in the valve body (1), the executing mechanism (6) comprises a motor (9) and a threaded rod (10), an executing bottom cover (11) is fixed at one end, far away from the valve body (1), of the executing bottom cover (11), far away from the valve cover (2), of the executing top cover (12) is fixed at one end, far away from the valve, the motor (9) is fixed on one side, close to the execution bottom cover (11), of the execution top cover (12), an output shaft of the motor (9) is fixedly connected with a threaded rod (10), one end, far away from the motor (9), of the threaded rod (10) is in threaded fit with the execution bottom cover (11), a rotating rod (13) which is in rotating fit with the execution bottom cover (11) is arranged on the execution bottom cover (11), a sliding groove I (14) is formed in the rotating rod (13), one end of a valve rod (4) penetrates through the execution bottom cover (11), a fixing rod (15) is fixed at one end, located on the upper side of the execution bottom cover (11), of the valve rod (4), the fixing rod (15) is arranged in the sliding groove I (14), the fixing rod (15) is in sliding fit with the sliding groove I (14), a moving block (16) which is in threaded fit with the threaded rod (10) is arranged on the threaded rod (10), one end of the rotating rod (13) is provided with a second sliding groove (18), the sliding rod (17) is arranged in the second sliding groove (18), the sliding rod (17) is in sliding fit with the second sliding groove (18), a limiting rod (19) is fixed between the execution bottom cover (11) and the execution top cover (12), the limiting rod (19) penetrates through the moving block (16), the limiting rod (19) is in sliding fit with the moving block (16), and the valve rod (4) is provided with a return assembly (20).

2. The closed circulation cooling water regulating valve according to claim 1, wherein the return assembly (20) comprises an annular return block (22) and a spring (23), an annular return groove (21) is formed in the valve cover (2) outside the valve rod (4), the annular return block (22) is arranged in the annular return groove (21), the annular return block (22) is in sliding fit with the annular return groove (21), the spring (23) is arranged in the annular return groove (21), one end of the spring (23) is fixedly connected with the bottom of the annular return groove (21), and the other end of the spring (23) is fixed with the annular return block (22).

3. The closed circulation cooling water regulating valve according to claim 1, characterized in that an annular groove (24) is formed in the valve body (1) close to the valve rod (4), a sealing packing (25) is arranged in the annular groove (24), and a packing gland (26) connected with the valve cover (2) through a bolt is arranged on the upper side of the sealing packing (25).

4. A closed circulation cooling water regulating valve according to claim 1, characterized in that a first sealing gasket (27) is arranged between the sleeve (3) and the valve body (1), a second sealing gasket (28) is arranged between the valve rod (4) and the valve core (5), and a third sealing gasket (29) is arranged between the valve rod (4) and the actuator bottom cover (11).

5. A closed cycle cooling water regulating valve in accordance with claim 1, characterized in that a controller (30) is fixed to the actuator head (12).

6. The closed circulation cooling water regulating valve according to claim 1, wherein both ends of the valve body (1) are provided with connecting holes (31).