CN220168656U - High temperature resistant pilot valve - Google Patents
High temperature resistant pilot valve Download PDFInfo
- Publication number
- CN220168656U CN220168656U CN202321301612.5U CN202321301612U CN220168656U CN 220168656 U CN220168656 U CN 220168656U CN 202321301612 U CN202321301612 U CN 202321301612U CN 220168656 U CN220168656 U CN 220168656U
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- CN
- China
- Prior art keywords
- valve
- fixedly connected
- corrugated pipe
- pilot valve
- high temperature
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- 238000007789 sealing Methods 0.000 claims abstract description 8
- 229920001971 elastomer Polymers 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 229920001973 fluoroelastomer Polymers 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model relates to the technical field of pilot valves, in particular to a high-temperature-resistant pilot valve. The utility model is characterized in that a corrugated pipe assembly is additionally arranged on the original basis, the corrugated pipe assembly is formed by welding an upper ring and a lower ring of a corrugated pipe through the corrugated pipe and a bushing, the lower ring of the corrugated pipe is in threaded connection with a valve clack, a guide sleeve is arranged in a valve body and is matched with the valve clack to conduct guiding and positioning actions, the upper ring of the corrugated pipe is placed on the guide sleeve, a tooth-shaped pad is placed on the contact surface of the corrugated pipe assembly, the guide sleeve and a valve cover, a spring is placed between the upper end of the valve clack and the valve cover, an adjustable bolt is arranged at the central position of the upper end of the valve clack, the central distance of the corrugated pipe is consistent with the central distance of the sealing surface of the valve clack, the valve cover is placed at the upper ring position of the corrugated pipe, and the valve cover are fixedly connected through the bolt. Solves the problem that the valve is easy to leak due to damage caused by high-temperature aging when the valve is used under the high-temperature working condition.
Description
Technical Field
The utility model relates to the technical field of pilot valves, in particular to a high-temperature-resistant pilot valve.
Background
The pilot valve is also called a pilot type safety relief valve, can be automatically opened and closed according to the working pressure change of the system, is usually arranged on equipment or a pipeline of a closed system to protect the safety of the system, and can automatically open and relieve pressure when the pressure in the equipment or the pipeline exceeds the set pressure of the pilot valve, so that the pressure of media in the equipment and the pipeline is ensured to be within the set pressure range, the safety of the equipment and the pipeline is protected, and accidents are prevented.
The original pilot pressure relief valve seals the pressure of the upper cavity through the O-shaped ring, the defect of the mode is not high temperature resistant, and the problem of valve leakage caused by damage due to high temperature aging is easily caused when the high temperature working condition is used.
Disclosure of Invention
The utility model aims to solve the defect that a sealing ring is easy to age and damage in the prior art, and provides a high-temperature-resistant pilot valve.
In order to achieve the above purpose, the high temperature resistant pilot valve comprises a main valve body and a valve cover, wherein the upper end of the main valve body is fixedly connected with a valve seat, one side of the valve seat is fixedly connected with a filter assembly, one end of the filter assembly, which is far away from the valve seat, is fixedly connected with a connecting pipe A, one end of the connecting pipe A is fixedly connected with a joint nut, the upper end of the joint nut is fixedly connected with a pilot valve body, one side, which is close to the valve seat, of the pilot valve body is fixedly connected with a connecting plate, one side, which is close to the connecting plate, of the pilot valve body is fixedly connected with a connecting pipe B, the upper end of the valve seat is in threaded connection with a hexagonal nut, the inner wall of the hexagonal nut is in threaded connection with a stud, the inside of the valve seat is fixedly connected with a hexagonal bolt, the inside of the valve seat is provided with a corrugated pipe, the inside of the corrugated pipe assembly is formed by welding an upper ring and a lower ring of a corrugated pipe with a lining, the lower ring of the corrugated pipe is in threaded connection with a valve clack, a guide sleeve is arranged inside the valve body, the guide sleeve is matched with the valve clack, the valve clack is matched with the guide sleeve, the guide sleeve is placed on the position of the valve body, and the valve body is fixedly connected with the valve cover through the stud.
Preferably, a toothed pad is arranged on the contact surface of the corrugated pipe assembly, the guide sleeve and the valve cover, and the toothed pad is a rubber pad.
Preferably, a spring is arranged between the upper end of the valve clack and the valve cover, and an adjustable bolt is arranged at the center of the upper end of the valve clack.
Preferably, the center distance of the corrugated pipe is consistent with the center distance of the sealing surface of the valve clack.
Preferably, the arc surface of disk seat is equipped with bearing structure, bearing structure includes the slide rail, the slide rail with disk seat fixed connection, the inner wall sliding connection of slide rail has the slider, the upper surface fixedly connected with bracing piece of slider, the upper end fixedly connected with arc plate of bracing piece, one side fixedly connected with accessory plate of slider, the inner wall threaded connection of accessory plate has the screw rod, screw rod and slide rail looks butt.
The effects achieved by the components are as follows: when the support is needed, the sliding block is pulled to move, the sliding block slides on the inner wall of the sliding rail, the sliding block drives the auxiliary plate to move, the auxiliary plate drives the screw rod to move, the sliding block drives the supporting rod to move, the supporting rod drives the arc plate to move, the arc plate supports the pipeline, and then the screw rod is screwed to fix.
Preferably, a limiting rod is fixedly connected to the inside of the sliding rail, and the limiting rod is in sliding connection with the sliding block.
The effects achieved by the components are as follows: the limiting rod can limit the sliding block, so that the sliding block is prevented from shifting when sliding on the inner wall of the sliding rail, and the sliding stability of the sliding block is improved.
Preferably, one side of the screw rod, which is close to the sliding rail, is fixedly connected with an anti-slip pad, and the anti-slip pad is abutted against the sliding rail.
The effects achieved by the components are as follows: the anti-slip pad can increase the friction force between the screw rod and the sliding rail, and the screw rod is prevented from loosening when the sliding rail is extruded to be fixed.
In summary, the beneficial effects of the utility model are as follows:
the high-temperature-resistant pilot valve has the advantages that the valve clack is provided with the corrugated pipe for sealing, so that the high-temperature resistance of the valve is effectively improved, and the original old product is sealed by adopting the fluororubber O-shaped ring on the valve clack. The use temperature range of the general fluororubber O-shaped ring is less than 200 ℃, so that the use condition requirement of the pilot valve is limited to a great extent, the novel design scheme of the project adopts a corrugated pipe assembly mode to seal, the use temperature can be consistent with the use temperature of the main body material of the novel fluororubber O-shaped ring, different materials can be selected according to the condition requirement, the influence of the medium temperature on the overall performance of the valve is completely avoided, the sealing performance is more stable, and the problem that the original pilot valve cannot use the medium with the high temperature of more than 250 ℃ is solved, so that the requirements of different working conditions are effectively met and expanded.
This high temperature resistant formula pilot valve can play the balanced effect of opening and close pressure difference better through after the bellows subassembly device is designed on the valve clack, and the valve is opened the back bellows subassembly device and can be balanced the valve clack better, makes the valve clack seat return faster, opens and close pressure difference less, has increased the seal reliability of valve, is difficult for producing leakage. Thereby efficiently reducing the energy consumption and achieving the aims of energy conservation and consumption reduction.
The high-temperature-resistant pilot valve has the advantages that the corrugated pipe assembly device is in threaded connection with the valve clack, the valve clack is convenient to disassemble and maintain, labor and time are saved, the service life of the pilot valve is prolonged, and the use cost and public resources are effectively saved.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of an auxiliary structure of the present utility model;
FIG. 3 is an enlarged view at A of FIG. 2;
fig. 4 is a schematic view of a support structure according to the present utility model.
Legend description: 1. a main valve body; 2. a valve seat; 3. a filter assembly; 4. a valve flap; 5. a guide sleeve; 6. a spring; 7. a bellows assembly; 8. a tooth pad; 9. a valve cover; 10. taking over the A; 11. a joint nut; 12. a valve guide body; 13. a connecting plate; 14. taking over the B; 15. a hexagonal nut; 16. a stud bolt; 17. a hex head bolt; 18. a bushing; 19. the corrugated pipe is coiled; 20. a corrugated pipe; 21. a lower ring of the corrugated pipe; 22. a slide rail; 23. a limit rod; 24. a support rod; 25. an auxiliary plate; 26. a screw; 27. an anti-slip pad; 28. an arc plate; 29. a sliding block.
Detailed Description
Referring to fig. 1, the present utility model provides a technical solution: the utility model provides a high temperature resistant formula pilot valve, includes auxiliary structure, and auxiliary structure includes ripple subassembly, and the arc surface of disk seat 2 is equipped with bearing structure.
The specific arrangement and function of the auxiliary structure and the support structure are described in detail below.
Referring to fig. 2, in this embodiment: the utility model provides a high temperature resistant formula pilot valve, includes main valve body 1 and valve gap 9, its characterized in that: the valve comprises a main valve body 1, a valve seat 2 is fixedly connected to the upper end of the main valve body 1, a filter assembly 3 is fixedly connected to one side of the valve seat 2, a corrugated pipe A10 is fixedly connected to one end of the filter assembly 3 away from the valve seat 2, a joint nut 11 is fixedly connected to one end of the joint nut A10, a pilot valve body 12 is fixedly connected to the upper end of the joint nut 11, a connecting plate 13 is fixedly connected to one side of the pilot valve body 12, which is close to the valve seat 2, a connecting pipe B14 is fixedly connected to one side of the pilot valve body 12, a hexagonal nut 15 is connected to the upper end of the valve seat 2 in a threaded manner, a stud 16 is connected to the inner wall of the hexagonal nut 15 in a threaded manner, a hexagonal head bolt 17 is fixedly connected to the inner portion of the valve seat 2, a corrugated pipe 20 is arranged in the valve seat 2, a corrugated pipe assembly 7 is additionally arranged in the corrugated pipe 20, the corrugated pipe assembly 7 is formed by welding an upper ring 19 and a lower ring of the corrugated pipe through a corrugated pipe and a bushing 18, the lower ring 21 of the corrugated pipe is in threaded manner with a 4, a guide sleeve 5 is arranged in the valve body, the guide sleeve 5 is matched with the valve clack 4 for guiding and positioning, the upper ring of the corrugated pipe is placed on the guide sleeve 5, the position of the guide sleeve is placed on the guide sleeve 9, the position of the corrugated pipe is placed on the position of the corrugated pipe, and the valve seat 9 is fixedly connected to the valve cover through the valve seat 9.
Referring to fig. 4, in this embodiment: the supporting structure comprises a sliding rail 22, the inner wall of the sliding rail 22 is fixedly connected with a sliding block 29, the upper surface of the sliding block 29 is fixedly connected with a supporting rod 24, the upper end of the supporting rod 24 is fixedly connected with a circular arc plate 28, one side of the sliding block 29 is fixedly connected with an auxiliary plate 25, the inner wall of the auxiliary plate 25 is in threaded connection with a screw rod 26, the screw rod 26 is abutted against the sliding rail 22, when the sliding block 29 is required to be supported, the sliding block 29 is pulled to move, the sliding block 29 slides on the inner wall of the sliding rail 22, the sliding block 29 drives the auxiliary plate 25 to move, the auxiliary plate 25 drives the screw rod 26 to move, the sliding block 29 drives the supporting rod 24 to move, the circular arc plate 28 supports a pipeline, then the screw rod 26 is screwed to be fixed, the limiting rod 23 is fixedly connected with the inside of the sliding rail 22, the limiting rod 23 is in sliding connection with the sliding block 29, the sliding block 29 is prevented from being deviated when the inner wall of the sliding rail 22 slides, the sliding stability of the sliding block 29 is improved, one side of the screw rod 26, which is close to the sliding block 29 is fixedly connected with a sliding block 27, the sliding block 27 is abutted against the sliding block 22, the sliding block 27 can be prevented from being pressed against the sliding block 22, and the sliding block 26 can be pressed against the sliding block 26, and the sliding block 26 can be prevented from being pressed against the sliding rail 22.
Working principle: the high temperature resistant pilot valve is composed of a main valve body assembly, a pilot valve body assembly and accessories, when in use, media firstly enter a filter 3 from an inlet of the main valve body 1, then enter a pilot valve body 12 through a connecting pipe (A) 10, and simultaneously the pilot valve body 12 flows the media into a valve cover 9 through a connecting pipe (B) 14 to enter a corrugated pipe assembly 7, and as the acting area of the air chamber media in the corrugated pipe assembly 7 on the valve clack 4 is larger than the acting area of the media below, the valve clack 4 is in a closed state under the action of pressure difference. When the pressure of the pipeline medium is abnormal and reaches or exceeds the set pressure, the pilot valve body 12 is opened, medium in the air chamber of the upper cavity of the valve clack 4 is rapidly discharged through the pilot valve body 12, the valve clack 4 is instantaneously opened under the pushing action of the pressure of the medium at the inlet of the main valve body 1 to discharge the medium from the outlet of the main valve body 1, the spring 6 balances when the valve clack 4 is opened, the hexagon head bolt 17 limits, when the pressure of the pipeline medium is restored to the designed working pressure value, the valve clack 4 is reset through the guide sleeve 5 to be in contact with the valve seat 2 for sealing, meanwhile, the medium reenters the upper cavity of the valve clack 4, and the pilot valve is restored to the normal sealing working state, so that the pressure equipment is ensured to be always in safe operation.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
Claims (7)
1. The utility model provides a high temperature resistant formula pilot valve, includes main valve body (1) and valve gap (9), its characterized in that: the utility model discloses a valve seat, a main valve body (1), upper end fixedly connected with disk seat (2), one side fixedly connected with filter subassembly (3) of disk seat (2), one end fixedly connected with takeover A (10) of disk seat (2) is kept away from to filter subassembly (3), one end fixedly connected with joint nut (11) of takeover A (10), the upper end fixedly connected with pilot valve body (12) of joint nut (11), one side fixedly connected with connecting plate (13) that pilot valve body (12) is close to disk seat (2), one side fixedly connected with takeover B (14) that pilot valve body (12) is close to connecting plate (13), the upper end screw thread connection of disk seat (2) has hexagonal nut (15), the inner wall screw thread connection of hexagonal nut (15) has stud (16), the inside fixedly connected with hexagonal head bolt (17) of disk seat (2), the inside of disk seat (2) is equipped with bellows (20), bellows subassembly (7) have been installed to the inside of bellows (20), bellows subassembly (7) are by bellows top ring (19) and lower ring (18) and pass through bellows (4) and are connected with valve body (4), the valve cover (9) is fixedly connected with the valve body through bolts.
2. A high temperature resistant pilot valve as defined in claim 1, wherein: the tooth-shaped pad (8) is arranged on the contact surface of the corrugated pipe assembly (7), the guide sleeve (5) and the valve cover (9), and the tooth-shaped pad (8) is a rubber pad.
3. A high temperature resistant pilot valve as defined in claim 1, wherein: a spring (6) is arranged between the upper end of the valve clack (4) and the valve cover (9), and an adjustable bolt is arranged at the center of the upper end of the valve clack (4).
4. A high temperature resistant pilot valve as defined in claim 1, wherein: the center distance of the corrugated pipe is consistent with the center distance of the sealing surface of the valve clack (4).
5. A high temperature resistant pilot valve as defined in claim 1, wherein: the circular arc surface of disk seat (2) is equipped with bearing structure, bearing structure includes slide rail (22), the inner wall sliding connection of slide rail (22) with disk seat (2) fixed connection, the upper surface fixedly connected with bracing piece (24) of slide rail (22), the upper end fixedly connected with circular arc board (28) of bracing piece (24), one side fixedly connected with accessory plate (25) of slide rail (29), the inner wall threaded connection of accessory plate (25) has screw rod (26), screw rod (26) and slide rail (22) looks butt.
6. The high temperature resistant pilot valve of claim 5, wherein: the inside fixedly connected with gag lever post (23) of slide rail (22), gag lever post (23) and slider (29) sliding connection.
7. The high temperature resistant pilot valve of claim 5, wherein: one side of the screw rod (26) close to the sliding rail (22) is fixedly connected with an anti-slip pad (27), and the anti-slip pad (27) is abutted to the sliding rail (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321301612.5U CN220168656U (en) | 2023-05-26 | 2023-05-26 | High temperature resistant pilot valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321301612.5U CN220168656U (en) | 2023-05-26 | 2023-05-26 | High temperature resistant pilot valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220168656U true CN220168656U (en) | 2023-12-12 |
Family
ID=89067721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321301612.5U Active CN220168656U (en) | 2023-05-26 | 2023-05-26 | High temperature resistant pilot valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220168656U (en) |
-
2023
- 2023-05-26 CN CN202321301612.5U patent/CN220168656U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |