CN216975935U

CN216975935U - High-pressure hydrogen electromagnetic valve

Info

Publication number: CN216975935U
Application number: CN202123259980.1U
Authority: CN
Inventors: 陈启贤; 卢洪康
Original assignee: Xi'an Huiyuan Instruments & Valves Co ltd
Current assignee: Xi'an Huiyuan Instruments & Valves Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-07-15
Anticipated expiration: 2031-12-23

Abstract

The utility model belongs to the technical field of electromagnetic valves, and particularly relates to a high-pressure hydrogen electromagnetic valve which comprises electromagnetic equipment, wherein a valve body is arranged at the lower end of the electromagnetic equipment in a bolted connection mode, a sealing assembly is arranged at the joint of the electromagnetic equipment and the valve body, the sealing assembly comprises a threaded cylinder, the upper end of the threaded cylinder is clamped on the inner wall of the electromagnetic equipment, the lower end of the threaded cylinder is clamped on the inner wall of the valve body, a sealing gasket is fixedly arranged on the outer wall of the threaded cylinder, the sealing gasket is positioned between the electromagnetic equipment and the valve body, and a sealing membrane is fixedly arranged on the inner wall of the threaded cylinder. According to the utility model, the threaded cylinder is spirally connected inside the first connecting pipe and the second connecting pipe, the first sealing ring is clamped in the first sealing groove, the second sealing ring is clamped in the second sealing groove, the sealing rings are clamped in the first clamping groove and the inner side of the second clamping groove during bolt connection, the stability of a connection position is improved through flange plate bolt connection and external threaded connection, and the sealing property of the connection position is improved through multiple clamping of the sealing assembly.

Description

High-pressure hydrogen electromagnetic valve

Technical Field

The utility model relates to the technical field of electromagnetic valves, in particular to a high-pressure hydrogen electromagnetic valve.

Background

The electromagnetic valve belongs to an actuator unit of an industrial automation instrument, and is often used for realizing automatic control of processes of on-off, switching, distribution and the like of a medium in a pipeline. The solenoid valve can be matched with different circuits to realize expected control, and the control precision and flexibility can be ensured. There are many types of solenoid valves, with different solenoid valves functioning at different locations in the control system, the most common being one-way valves, safety valves, directional control valves, speed control valves, etc. Need use high pressure hydrogen solenoid valve when hydrogen is carried in hydrogen station, because the pressure when hydrogen is carried in hydrogen station is too big, cause very big pressure for the inside seal assembly of solenoid valve, general solenoid valve seals through ring flange bolted connection, leads to seal assembly to connect the unstability easily under the long-term high pressure is strikeed, leads to the condition that hydrogen was revealed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the high-pressure hydrogen electromagnetic valve which has the characteristics of stable operation and good sealing property.

In order to achieve the purpose, the utility model provides the following technical scheme: high-pressure hydrogen solenoid valve, including electromagnetic equipment, electromagnetic equipment's lower extreme bolted connection is equipped with the valve body, electromagnetic equipment is equipped with seal assembly with the junction of valve body, seal assembly includes a screw thread section of thick bamboo, the upper end block of a screw thread section of thick bamboo is on electromagnetic equipment's inner wall, the lower extreme block of a screw thread section of thick bamboo is on the inner wall of valve body, the fixed sealed pad that is equipped with on the outer wall of a screw thread section of thick bamboo, sealed pad is located between electromagnetic equipment and the valve body, the fixed seal membrane that is equipped with on the inner wall of a screw thread section of thick bamboo.

According to the preferred technical scheme of the high-pressure hydrogen electromagnetic valve, the electromagnetic equipment comprises an electromagnetic device, a first connecting pipe is fixedly arranged at the lower end of the electromagnetic device, a first flange plate is fixedly arranged on the outer side of the lower end of the first connecting pipe, and a movable iron core is arranged on the inner side of the first connecting pipe.

According to the preferable technical scheme of the high-pressure hydrogen electromagnetic valve, a first sealing groove is formed in the inner wall of the first connecting pipe, a first thread is arranged below the first sealing groove, the first thread is fixed on the inner wall of the lower end of the first connecting pipe, the first thread is in threaded connection with the upper end of a threaded cylinder, and the upper end of the threaded cylinder is clamped inside the first sealing groove.

As the preferred technical scheme of the high-pressure hydrogen electromagnetic valve, a first clamping groove is formed in the bottom surface of the first flange plate, and the first clamping groove is clamped with the sealing gasket.

As the preferable technical scheme of the high-pressure hydrogen electromagnetic valve, the valve body comprises a valve barrel, a second connecting pipe is fixedly arranged at the upper end of the valve barrel, a second flange is fixedly arranged on the outer side of the top end of the second connecting pipe, and the first flange is in bolted connection with the second flange.

As a preferred technical scheme of the high-pressure hydrogen electromagnetic valve, a second sealing groove is formed in the inner wall of the second connecting pipe, a second thread is arranged above the second sealing groove and fixed on the inner wall of the upper end of the second connecting pipe, the second thread is in threaded connection with the outer wall of the lower end of a threaded cylinder, and the lower end of the threaded cylinder is clamped on the inner side of the second sealing groove.

As the preferred technical scheme of the high-pressure hydrogen electromagnetic valve, the top surface of the second flange plate is provided with a second sealing groove, and the second sealing groove is clamped with the sealing gasket.

As the preferable technical scheme of the high-pressure hydrogen electromagnetic valve, the threaded cylinder comprises a cylinder wall, a first sealing ring is fixedly arranged on the outer wall of the upper end of the cylinder wall, the first sealing ring is clamped inside a first sealing groove, a second sealing ring is fixedly arranged on the outer wall of the lower end of the cylinder wall, and the second sealing ring is clamped inside a second sealing groove.

According to the preferable technical scheme of the high-pressure hydrogen electromagnetic valve, the sealing gasket comprises a base plate, the base plate is fixed in the middle of the outer wall of the threaded cylinder, the base plate is located between the first flange and the second flange, sealing rings are fixedly arranged on the upper surface and the lower surface of the base plate, and the sealing rings are clamped on the inner sides of the first clamping groove and the second clamping groove.

As the preferable technical scheme of the high-pressure hydrogen electromagnetic valve, the sealing membrane comprises a fixed outer ring, the fixed outer ring is fixed on the inner wall of the threaded cylinder, a diaphragm is fixedly arranged on the fixed outer ring, a fixed inner ring is fixedly connected to one side of the diaphragm, and the fixed inner ring is fixed on the outer wall of the movable iron core.

Compared with the prior art, the utility model has the beneficial effects that:

in the using process of the utility model, the sealing component is arranged, the first screw thread and the second screw thread are arranged on the inner walls of the first connecting pipe and the second connecting pipe by modification, the screw thread cylinder of the sealing component is spirally connected inside the first connecting pipe and the second connecting pipe, when the connection is finished, the first sealing ring at the upper end of the threaded cylinder is clamped in the first sealing groove, the second sealing ring at the lower end of the threaded cylinder is clamped in the second sealing groove, the sealing gasket on the outer wall of the threaded cylinder is positioned between the first flange and the second flange, the first flange plate and the second flange plate are provided with a first clamping groove and a second clamping groove, so that the sealing ring on the sealing gasket is clamped at the inner sides of the first clamping groove and the second clamping groove when the bolts are connected, the stability of the joint is improved by connecting the flange plate with bolts and connecting with external threads, and the tightness of the joint is improved by multiple clamping of the sealing assembly.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is an enlarged schematic view at A in FIG. 2;

fig. 4 is a perspective cross-sectional view of the seal assembly of the present invention.

In the figure: 1. an electromagnetic device; 11. an electromagnetic device; 12. a first connecting pipe; 121. a first sealing groove; 122. a first thread; 13. a first flange plate; 131. a first card slot; 14. a movable iron core; 2. a valve body; 21. a valve barrel; 22. a second connecting pipe; 221. a second sealing groove; 222. a second thread; 23. a second flange plate; 231. a second card slot; 3. a seal assembly; 31. a threaded barrel; 311. a cylinder wall; 312. a first sealing ring; 313. a second sealing ring; 32. a gasket; 321. a base plate; 322. a seal ring; 33. a sealing film; 331. fixing the outer ring; 332. a membrane; 333. and fixing the inner ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides the following technical solutions: high-pressure hydrogen solenoid valve, including electromagnetic equipment 1, the lower extreme bolted connection of electromagnetic equipment 1 is equipped with valve body 2, electromagnetic equipment 1 is equipped with seal assembly 3 with the junction of valve body 2, seal assembly 3 includes a screw thread section of thick bamboo 31, the upper end block of a screw thread section of thick bamboo 31 is on electromagnetic equipment 1's inner wall, the lower extreme block of a screw thread section of thick bamboo 31 is on valve body 2's inner wall, the fixed sealed pad 32 that is equipped with on the outer wall of a screw thread section of thick bamboo 31, sealed pad 32 is located between electromagnetic equipment 1 and the valve body 2, the fixed seal membrane 33 that is equipped with on the inner wall of a screw thread section of thick bamboo 31.

Referring to fig. 2 and 3, specifically, the electromagnetic device 1 includes an electromagnetic device 11, a first connecting pipe 12 is fixedly disposed at a lower end of the electromagnetic device 11, a first flange 13 is fixedly disposed at an outer side of a lower end of the first connecting pipe 12, and a movable iron core 14 is disposed at an inner side of the first connecting pipe 12; a first sealing groove 121 is formed in the inner wall of the first connecting pipe 12, a first thread 122 is arranged below the first sealing groove 121, the first thread 122 is fixed on the inner wall of the lower end of the first connecting pipe 12, the first thread 122 is in threaded connection with the upper end of the thread cylinder 31, and the upper end of the thread cylinder 31 is clamped in the first sealing groove 121; a first clamping groove 131 is formed in the bottom surface of the first flange plate 13, and the first clamping groove 131 is clamped with the sealing gasket 32; the valve body 2 comprises a valve barrel 21, a second connecting pipe 22 is fixedly arranged at the upper end of the valve barrel 21, a second flange 23 is fixedly arranged on the outer side of the top end of the second connecting pipe 22, and the first flange 13 is connected with the second flange 23 through bolts; a second sealing groove 221 is formed in the inner wall of the second connecting pipe 22, a second thread 222 is arranged above the second sealing groove 221, the second thread 222 is fixed on the inner wall of the upper end of the second connecting pipe 22, the second thread 222 is in threaded connection with the outer wall of the lower end of the threaded cylinder 31, and the lower end of the threaded cylinder 31 is clamped inside the second sealing groove 221; no. two seal grooves 221 are formed in the top surface of the second flange plate 23, the second seal grooves 221 are clamped with the sealing gaskets 32, and the flange plate is connected with the threaded barrel 31 through bolts, so that the stability of the connecting position is improved through multiple connection.

Referring to fig. 2 and 4, specifically, the threaded cylinder 31 includes a cylinder wall 311, a first sealing ring 312 is fixedly disposed on an outer wall of an upper end of the cylinder wall 311, the first sealing ring 312 is clamped inside the first sealing groove 121, a second sealing ring 313 is fixedly disposed on an outer wall of a lower end of the cylinder wall 311, and the second sealing ring 313 is clamped inside the second sealing groove 221; the sealing gasket 32 comprises a base plate 321, the base plate 321 is fixed in the middle of the outer wall of the threaded cylinder 31, the base plate 321 is located between the first flange 13 and the second flange 23, the upper surface and the lower surface of the base plate 321 are both fixedly provided with sealing rings 322, and the sealing rings 322 are clamped inside the first clamping groove 131 and the second clamping groove 231; the sealing film 33 comprises a fixed outer ring 331, the fixed outer ring 331 is fixed on the inner wall of the thread cylinder 31, a diaphragm 332 is fixedly arranged on the fixed outer ring 331, one side of the diaphragm 332 is fixedly connected with a fixed inner ring 333, and the fixed inner ring 333 is fixed on the outer wall of the movable iron core 14; the screw thread cylinder 31 of the sealing component 3 is spirally connected inside the first connecting pipe 12 and the second connecting pipe 22, when connection is completed, the first sealing ring 312 at the upper end of the screw thread cylinder 31 is clamped in the first sealing groove 121, the second sealing ring 313 at the lower end of the screw thread cylinder 31 is clamped in the second sealing groove 221, when bolt connection is performed, the sealing ring 322 on the sealing gasket 32 is clamped in the first clamping groove 131 and the second clamping groove 231, the sealing performance of the connection position is improved through multiple clamping of the sealing component 3, the sealing ring is fixed on the movable iron core 14 through the fixed inner ring 333 on the sealing film 33, the upper end of the movable iron core 14 is sealed, and the condition that the service life of components such as a spring connected with the movable iron core 14 is reduced due to hydrogen corrosion caused by long-term invasion of hydrogen into the upper end of the movable iron core 14 is avoided.

The utility model has the following use flow and working principle: when the utility model is used, firstly, the upper end of the screw thread cylinder 31 is connected to the inner side of the first connecting pipe 12 by screw thread, when the connection is finished, the first sealing ring 312 at the top of the screw thread cylinder 31 is clamped at the inner side of the first sealing groove 121 on the inner wall of the first connecting pipe 12, then the fixed inner ring 333 of the sealing film 33 is fixed on the outer wall of the movable iron core 14, the electromagnetic equipment 1 is sealed by air to prevent hydrogen from invading into the equipment above the movable iron core 14, then the second connecting pipe 22 is connected with the lower end of the screw thread cylinder 31 by screw thread, when the connection is finished, the second sealing ring 313 at the lower end of the screw thread cylinder 31 is clamped at the inner side of the second sealing groove 221 on the inner wall of the second connecting pipe 22, the sealing gasket 32 on the outer wall of the screw thread cylinder 31 is positioned between the first flange 13 and the second flange 23, when the first flange 13 and the second flange 23 are connected by screw bolt, the sealing ring 322 on the sealing gasket 32 is clamped at the inner side of the clamping groove 131 and the clamping groove 231 of the first flange 23, thereby increasing the sealing of the device.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. High pressure hydrogen solenoid valve, including electromagnetic equipment (1), its characterized in that: the lower extreme bolted connection of electromagnetic equipment (1) is equipped with valve body (2), electromagnetic equipment (1) is equipped with seal assembly (3) with the junction of valve body (2), seal assembly (3) are including a screw thread section of thick bamboo (31), the upper end block of a screw thread section of thick bamboo (31) is on the inner wall of electromagnetic equipment (1), the lower extreme block of a screw thread section of thick bamboo (31) is on the inner wall of valve body (2), the fixed sealed pad (32) that is equipped with on the outer wall of a screw thread section of thick bamboo (31), sealed pad (32) are located between electromagnetic equipment (1) and valve body (2), the fixed seal membrane (33) that is equipped with on the inner wall of a screw thread section of thick bamboo (31).

2. The high-pressure hydrogen solenoid valve according to claim 1, wherein: electromagnetic equipment (1) includes electromagnetic device (11), the lower extreme of electromagnetic device (11) is fixed to be equipped with connecting pipe (12) No. one, the lower extreme outside of connecting pipe (12) is fixed to be equipped with ring flange (13) No. one, the inboard of connecting pipe (12) is equipped with moves iron core (14).

3. The high-pressure hydrogen solenoid valve according to claim 2, wherein: a seal groove (121) has been seted up on the inner wall of a connecting pipe (12), the below of a seal groove (121) is equipped with a screw thread (122), a screw thread (122) is fixed on the lower extreme inner wall of a connecting pipe (12), the upper end threaded connection of a screw thread (122) and a screw thread section of thick bamboo (31), the upper end block of a screw thread section of thick bamboo (31) is inboard in a seal groove (121).

4. The high-pressure hydrogen solenoid valve according to claim 2, wherein: a first clamping groove (131) is formed in the bottom face of the first flange plate (13), and the first clamping groove (131) is clamped with the sealing gasket (32).

5. The high-pressure hydrogen solenoid valve according to claim 4, wherein: the valve body (2) comprises a valve barrel (21), a second connecting pipe (22) is fixedly arranged at the upper end of the valve barrel (21), a second flange plate (23) is fixedly arranged on the outer side of the top end of the second connecting pipe (22), and the first flange plate (13) is connected with the second flange plate (23) through bolts.

6. The high-pressure hydrogen solenoid valve according to claim 5, wherein: no. two seal grooves (221) have been seted up on the inner wall of No. two connecting pipes (22), the top of No. two seal grooves (221) is equipped with No. two screw threads (222), No. two screw threads (222) are fixed on the upper end inner wall of No. two connecting pipes (22), the lower extreme outer wall threaded connection of No. two screw threads (222) and a screw thread section of thick bamboo (31), the lower extreme block of a screw thread section of thick bamboo (31) is in the inboard of No. two seal grooves (221).

7. The high-pressure hydrogen solenoid valve according to claim 5, wherein: no. two seal grooves (221) have been seted up to the top surface of No. two ring flange (23), No. two seal groove (221) and sealed pad (32) block.

8. The high-pressure hydrogen solenoid valve according to claim 1, wherein: the threaded cylinder (31) comprises a cylinder wall (311), a first sealing ring (312) is fixedly arranged on the outer wall of the upper end of the cylinder wall (311), the first sealing ring (312) is clamped on the inner side of a first sealing groove (121), a second sealing ring (313) is fixedly arranged on the outer wall of the lower end of the cylinder wall (311), and the second sealing ring (313) is clamped on the inner side of a second sealing groove (221).

9. The high-pressure hydrogen solenoid valve according to claim 1, wherein: sealed pad (32) include backing plate (321), backing plate (321) are fixed at the outer wall middle part of a screw thread section of thick bamboo (31), backing plate (321) are located between ring flange (13) and No. two ring flanges (23), the upper and lower two sides of backing plate (321) are all fixed and are equipped with sealing ring (322), sealing ring (322) block is in the inboard of a draw-in groove (131) and No. two draw-in grooves (231).

10. The high-pressure hydrogen solenoid valve according to claim 1, wherein: the sealing membrane (33) comprises a fixed outer ring (331), the fixed outer ring (331) is fixed on the inner wall of the threaded cylinder (31), a diaphragm (332) is fixedly arranged on the fixed outer ring (331), a fixed inner ring (333) is fixedly connected to one side of the diaphragm (332), and the fixed inner ring (333) is fixed on the outer wall of the movable iron core (14).