CN211901718U

CN211901718U - Take alarm device's nitrogen regulating valve that lets out

Info

Publication number: CN211901718U
Application number: CN202020347535.7U
Authority: CN
Inventors: 徐宏伟; 张居平
Original assignee: Zhejiang Bohan Fluid Control Equipment Co ltd
Current assignee: Zhejiang Bohan Fluid Control Equipment Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-11-10
Anticipated expiration: 2030-03-18

Abstract

The utility model discloses a nitrogen leakage regulating valve with an alarm device, which comprises a valve body, a valve seat, a valve core and a valve cover, wherein the valve seat is in sliding fit with the valve body, the valve core is arranged in the valve body, the valve seat is connected with the valve cover through a bolt, a valve rod which is in sliding fit with the valve body and the valve cover is arranged on the valve body, one end of the valve rod is fixedly connected with the valve core, an S-shaped through groove is arranged in the valve body, one end of the valve cover far away from the valve body is connected with a first membrane cover through a bolt, a second membrane cover is connected with the first membrane cover through a bolt, the alarm device is arranged between the first membrane cover and the second membrane cover, an actuating mechanism is fixed between the first membrane cover and the second membrane cover, one end of the second membrane cover far away from the first membrane cover is fixed with a cover cylinder, a cylinder cover which is in threaded fit with the cover cylinder is arranged, and once the diaphragm is broken, the outer pressure guide structure causes the failure of the valve, and the potential safety hazards such as gas leakage, overpressure and the like of the storage tank.

Description

Take alarm device's nitrogen regulating valve that lets out

Technical Field

The utility model relates to a valve equipment technical field, in particular to take alarm device's nitrogen discharge regulating valve.

Background

In the storage tank air seal system of chemical industry at present, a nitrogen release regulating valve is needed, the storage tank chemical raw materials are required to be isolated from air, and the storage tank pressure is required to be maintained to be constant. The nitrogen release device needs to use a nitrogen release regulating valve, and the nitrogen release regulating valves on the existing market are single diaphragms and external pressure guide structures, so that once the diaphragm is broken to cause valve failure, the potential safety hazards of gas leakage, overpressure and the like of the storage tank exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take alarm device's nitrogen regulation valve that leaks has solved the nitrogen regulation valve that leaks on the existing market and all is the single diaphragm, leads outward and presses the structure, in case the diaphragm breaks and leads to the valve inefficacy, the problem of potential safety hazards such as storage tank gas leaks, superpressure.

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

a nitrogen-release regulating valve with an alarm device comprises a valve body, a valve seat, a valve core and a valve cover, wherein the valve seat is in sliding fit with the valve body, the valve core is arranged in the valve body, the valve seat is connected with the valve cover through a bolt, the valve body is provided with a valve rod which is in sliding fit with the valve body and the valve cover, one end of the valve rod is fixedly connected with the valve core, an S-shaped through groove is arranged in the valve body, one end of the valve cover far away from the valve body is connected with a first membrane cover through a bolt, the first membrane cover is connected with a second membrane cover through a bolt, an alarm device is arranged between the first membrane cover and the second membrane cover, an actuating mechanism fixed with the valve rod is arranged between the first membrane cover and the second membrane cover, a cover cylinder is fixed at one end of the second membrane cover far away from the first membrane cover, the cover cylinder is provided with a cylinder cover in threaded fit with the cover cylinder, and the valve cover is provided with a channel communicated with the upper side of the membrane cover and the S-shaped through groove.

By adopting the technical scheme, the actuator gives a pretightening force to the valve rod, liquid enters the S-shaped through groove, the liquid gives the actuator and pressure, when the pressure is greater than the pretightening force, the actuator moves upwards to drive the valve rod to move upwards, the valve rod moves upwards to drive the valve core to move upwards, the valve is opened, the liquid flows out from the other end of the S-shaped channel, the pressure is released, when the pressure given to the actuator by the liquid is less than the pretightening force, the actuator drives the valve rod to move downwards, the valve rod moves downwards to drive the valve core to move downwards, and the valve is closed.

Preferably, the actuating mechanism comprises a first detection diaphragm, a second detection diaphragm and a spring, the first detection diaphragm and the second detection diaphragm are arranged between a first membrane cover and a second membrane cover and are connected through bolts, a spacer block sleeved outside the valve rod is arranged between the first detection diaphragm and the second detection diaphragm, a first tray fixed with the valve rod through a bolt is arranged on the first detection diaphragm, a second tray in sliding fit with the valve rod is arranged on the valve rod, a cover cylinder is arranged in the cover cylinder and is in threaded fit with an adjusting screw, and the spring is arranged between the adjusting screw and the second tray.

By adopting the technical scheme, when the pretightening force is to be set, the adjusting screw is rotated, the adjusting screw rotates to drive the spring to compress, the spring compresses to generate elastic force, the elastic force is transmitted to the tray, and the tray gives the pretightening force to the valve rod, so that the function of driving the valve rod to move and setting the pretightening force is achieved.

Preferably, the alarm device comprises a connecting block and a T-shaped top block, the connecting block, the first membrane cover and the second membrane cover are connected through bolts, a slide way is formed in the connecting block, the T-shaped top block is in sliding fit with the side wall of the slide way, limiting blocks are symmetrically fixed on the T-shaped top block, and an alarm block in sliding fit with the slide way is arranged in the slide way.

Adopt above-mentioned technical scheme, when detecting diaphragm one damaged, liquid flows into and detects diaphragm one and detect between the diaphragm two, and liquid gives pressure of T shape kicking block, and pressure promotion T shape kicking block slides to the slide, and T shape kicking block removes ejecting with the alarm block, and when the people seen the alarm block, the people will know that the detection diaphragm has been damaged, has played the monitoring and has detected whether the diaphragm is intact effect.

Preferably, a first sealing gasket is arranged between the first detection diaphragm and the first diaphragm cover, and a second sealing gasket is arranged between the second detection diaphragm and the second diaphragm cover.

By adopting the technical scheme, the sealing gasket plays a role in ensuring the sealing property between the first detection diaphragm and the first membrane cover, and the second sealing gasket plays a role in ensuring the sealing property between the second detection diaphragm and the second membrane cover.

Preferably, the valve body is symmetrically provided with connecting holes.

By adopting the technical scheme, the connecting hole plays a role in connecting the valve body and the pipeline.

Preferably, a waterproof pad is arranged between the valve seat and the valve body.

Adopt above-mentioned technical scheme, waterproof pad has played the effect that prevents water from flowing from the gap between disk seat and the valve body.

Drawings

FIG. 1 is a schematic view of a regulator valve;

fig. 2 is a schematic structural diagram for showing an alarm device.

Reference numerals: 1. a valve body; 2. a valve seat; 3. a valve core; 4. a valve cover; 5. a valve stem; 6. an S-shaped through groove; 7. a first membrane cover; 8. a second membrane cover; 9. an alarm device; 10. an actuator; 11. a cover cylinder; 12. a cylinder cover; 13. a channel; 14. detecting a first membrane; 15. detecting a second membrane; 16. a spring; 17. a spacer block; 18. a first tray; 19. a second tray; 20. an adjusting screw; 21. connecting blocks; 22. a T-shaped top block; 23. a slideway; 24. a limiting block; 25. an alarm block; 26. a first sealing gasket; 27. a second sealing gasket; 28. connecting holes; 29. a waterproof pad.

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 2, a nitrogen leakage regulating valve with an alarm device comprises a valve body 1, a valve seat 2, a valve core 3 and a valve cover 4, wherein the valve seat 2 is in sliding fit with the valve body 1, a waterproof pad 29 is arranged between the valve seat 2 and the valve body 1, the waterproof pad 29 plays a role of preventing water from flowing out from a gap between the valve seat 2 and the valve body 1, the valve core 3 is arranged in the valve body 1, the valve seat 2 is connected with the valve cover 4 through a bolt, a valve rod 5 in sliding fit with the valve body 1 and the valve cover 4 is arranged on the valve body 1, one end of the valve rod 5 is fixedly connected with the valve core 3, one end of the valve cover 4 far away from the valve body 1 is connected with a membrane cover I7 through a bolt, a membrane cover II 8 is connected with the membrane cover I7 through a bolt, one end of the membrane cover II 8 far away from the membrane cover I7 is fixed with a cover barrel 11, an adjusting screw, when a pretightening force is required to be set, the cylinder cover 12 is rotated open, the adjusting screw 20 is rotated, a first detection diaphragm 14 and a second detection diaphragm 15 which are connected with the first membrane cover 7 and the second membrane cover 8 through bolts are arranged between the first membrane cover 7 and the second membrane cover 8, a first sealing gasket 26 is arranged between the first detection diaphragm 14 and the first membrane cover 7, a second sealing gasket 27 is arranged between the second detection diaphragm 15 and the second membrane cover 8, the first sealing gasket 26 plays a role of ensuring the sealing property between the first detection diaphragm 14 and the first membrane cover 7, the second sealing gasket 27 plays a role of ensuring the sealing property between the second detection diaphragm 15 and the second membrane cover 8, a spacer block 17 which is sleeved on the valve rod 5 is arranged between the first detection diaphragm 14 and the second detection diaphragm 15, a first tray 18 which is fixed with the valve rod 5 through bolts is arranged on the first detection diaphragm 14, a second tray 19 which is in sliding fit with the valve rod 5 is arranged on the valve rod 5, and a spring 16 is arranged between, the adjusting screw 20 rotates to drive the spring 16 to compress, the spring 16 compresses to generate elastic force, the elastic force is transmitted to the first tray 18 through the second tray 19, the second detection diaphragm 15, the spacer block 17 and the first detection diaphragm 14, the first tray 18 transmits the elastic force to the valve rod 5, and at the moment, the valve rod 5 is subjected to pretightening force.

As shown in fig. 1, the valve body 1 is symmetrically provided with connecting holes 28, the valve body 1 is connected with a pipeline through the connecting holes 28, the valve body 1 is internally provided with an S-shaped through groove 6, water flows in from the S-shaped through groove 6, at the moment, the valve is in a closed state, the valve cover 4 is provided with a passage 13 communicated with the upper side of the first membrane cover 7 and the S-shaped through groove 6, the water flows into one side of the first membrane cover 7 away from the valve cover 4 from the passage 13, the water supplies pressure to the first tray 18, when the pressure is greater than the pre-tightening force applied to the valve rod 5, the pressure drives the first tray 18 to move towards the spring 16, the first tray 18 moves to drive the valve rod 5 to move towards the spring 16, the valve is opened, and when the pre-tightening force applied to.

As shown in fig. 2, a connecting block 21 connected with the first membrane cover 7 and the second membrane cover 8 through bolts is arranged between the first membrane cover 7 and the second membrane cover 8, a slide 23 is arranged in the connecting block 21, a T-shaped top block 22 in sliding fit with the side wall of the slide 23 is arranged on the side wall of the slide 23, an alarm block 25 in sliding fit with the slide 23 is arranged in the slide 23, when the first detection membrane 14 is damaged, water flows into between the first detection membrane 14 and the second detection membrane 15, water pressure is supplied to the T-shaped top block 22, the T-shaped top block 22 moves to drive the alarm block 25 to move out of one part, a limiting block 24 is symmetrically fixed on the T-shaped top block 22, and the limiting block 24 plays a role in preventing the T-shaped top block 22 from moving.

Claims

1. A nitrogen leakage regulating valve with an alarm device comprises a valve body (1), a valve seat (2), a valve core (3) and a valve cover (4), wherein the valve seat (2) is in sliding fit with the valve body (1), the valve core (3) is arranged in the valve body (1), the valve seat (2) is connected with the valve cover (4) through a bolt, a valve rod (5) in sliding fit with the valve body (1) and the valve cover (4) is arranged on the valve body (1), one end of the valve rod (5) is fixedly connected with the valve core (3), the nitrogen leakage regulating valve is characterized in that an S-shaped through groove (6) is formed in the valve body (1), one end, far away from the valve body (1), of the valve cover (4) is connected with a first membrane cover (7) through a bolt, a second membrane cover (8) is connected on the first membrane cover (7) through a bolt, and an alarm device (9) is arranged between the first membrane, be provided with actuating mechanism (10) fixed with valve rod (5) between membrane lid (7) and membrane lid two (8), the one end that membrane lid (7) were kept away from in membrane lid two (8) is fixed with a lid section of thick bamboo (11), be provided with on a lid section of thick bamboo (11) with a lid section of thick bamboo (12) of a screw-thread fit, seted up on valve gap (4) and lead to communicating passageway (13) in groove (6) with membrane lid (7) upside and S-shaped.

2. The nitrogen leakage regulating valve with the alarm device is characterized in that the actuating mechanism (10) comprises a first detection diaphragm (14), a second detection diaphragm (15) and a spring (16), the first detection diaphragm (14) and the second detection diaphragm (15) are arranged between a first membrane cover (7) and a second membrane cover (8), the first detection diaphragm (14) and the second detection diaphragm (15) are connected through a bolt, a spacer block (17) sleeved on the valve rod (5) is arranged between the first detection diaphragm (14) and the second detection diaphragm (15), a first tray (18) fixed with the valve rod (5) through a bolt is arranged on the first detection diaphragm (14), a second tray (19) in sliding fit with the valve rod (5) is arranged on the valve rod (5), and an adjusting screw (20) in threaded fit with the cover cylinder (11) is arranged in the cover cylinder (11), the spring (16) is arranged between the adjusting screw (20) and the second tray (19).

3. The nitrogen leakage regulating valve with the alarm device according to claim 1, wherein the alarm device (9) comprises a connecting block (21) and a T-shaped top block (22), the connecting block (21), a first membrane cover (7) and a second membrane cover (8) are connected through bolts, a slide way (23) is formed in the connecting block (21), the T-shaped top block (22) is in sliding fit with the side wall of the slide way (23), a limiting block (24) is symmetrically fixed on the T-shaped top block (22), and an alarm block (25) is arranged in the slide way (23) and is in sliding fit with the slide way (23).

4. The nitrogen leakage regulating valve with the alarm device is characterized in that a first sealing gasket (26) is arranged between the first detection diaphragm (14) and the first membrane cover (7), and a second sealing gasket (27) is arranged between the second detection diaphragm (15) and the second membrane cover (8).

5. The nitrogen leakage regulating valve with the alarm device according to claim 1, wherein the valve body (1) is symmetrically provided with connecting holes (28).

6. The nitrogen leakage regulating valve with the alarm device is characterized in that a waterproof pad (29) is arranged between the valve seat (2) and the valve body (1).