CN212028662U - Safety valve for gas pipeline - Google Patents
Safety valve for gas pipeline Download PDFInfo
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- CN212028662U CN212028662U CN202020534704.8U CN202020534704U CN212028662U CN 212028662 U CN212028662 U CN 212028662U CN 202020534704 U CN202020534704 U CN 202020534704U CN 212028662 U CN212028662 U CN 212028662U
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Abstract
The utility model discloses a gas pipeline safety valve, including the valve body, the bottom welding of valve body has first communicating pipe, the first ring flange of bolt fixedly connected with is passed through to the bottom of first communicating pipe, the welding has second communicating pipe on one side outer wall of valve body, the bolt fixedly connected with second ring flange is passed through to the one end of keeping away from the valve body on the second communicating pipe, all the embedding has the sealing washer on one side outer wall of first ring flange and second ring flange, the inside of valve body is provided with the disk seat. This gas pipeline safety valve through the lift of movable plate in the valve gap, can realize the extrusion to horizontal spring, and then adjusts the critical pressure value of horizontal spring, and then adjusts the opening and closing value of safety valve according to the safe value of gas pipeline difference, through mutually supporting of absorber plate, heat absorption stick and elasticity gasbag, can absorb the heat in the gas pipeline to promote the disk seat under the volume expansion of elasticity gasbag and rise, improve the sensitivity of safety valve.
Description
Technical Field
The utility model relates to a relief valve technical field specifically is a gas pipeline relief valve.
Background
The safety valve is a special valve, wherein the opening and closing part is in a normally closed state under the action of external force, and when the pressure of a medium in equipment or a pipeline rises to exceed a specified value, the medium is discharged to the outside of the system to prevent the pressure of the medium in the pipeline or the equipment from exceeding the specified value.
However, after the existing gas pipeline safety valve is installed, the critical opening and closing value of the safety valve is fixed, the safety valve is difficult to adjust according to different pressure critical values of the gas pipeline, the adaptability is poor, the existing gas pipeline safety valve is mostly opened and closed through the change of gas pressure, the existing gas pipeline safety valve cannot be opened and closed according to the change of temperature, and the opening sensitivity is poor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gas pipeline relief valve to it is difficult to adjust and can't carry out the problem of switching according to the change of temperature according to the different pressure critical value of gas pipeline to provide current gas pipeline relief valve in solving above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a safety valve for a gas pipeline comprises a valve body, wherein a first communicating pipe is welded at the bottom of the valve body, a first flange is fixedly connected at the bottom of the first communicating pipe through a bolt, a second communicating pipe is welded on the outer wall of one side of the valve body, a second flange is fixedly connected at one end, far away from the valve body, of the second communicating pipe through a bolt, sealing rings are embedded in the outer walls of one sides of the first flange and the second flange, a valve seat is arranged inside the valve body, a first connecting seat is welded at the top of the valve body, a second connecting seat is fixedly connected at the top of the first connecting seat through a bolt, a valve cover is welded at the top of the second connecting seat, a fixed seat is welded at the top of the valve cover, a screw rod is connected at the central position of the top of the fixed seat in a screwing manner through threads, a hand wheel is welded at the top, the welding has horizontal spring between movable plate and the disk seat, the bottom welding of movable plate has the absorber plate, the bottom of absorber plate is connected with elastic airbag through bolt fixed connection, and the welding of the bottom central point department of absorber plate has the heat absorption stick, the welding has the bracing piece on one side inner wall of second ring flange, be connected with two valve plates through the hinge rotation on one side outer wall of bracing piece, the welding has torsion spring between two valve plates, the welding of one side position department of being close to the valve plate on one side inner wall of second ring flange has the stopper.
Preferably, through holes are formed in the outer walls of the first flange plate and the second flange plate on one side.
Preferably, the valve seat and the valve body are in sliding connection through a sliding block and a sliding groove.
Preferably, the number of the elastic air bags is four, and the four elastic air bags are symmetrically arranged at the bottom of the heat absorbing plate.
Preferably, the height of the valve seat is larger than the inner diameter of the second communication pipe.
Preferably, the fixed seat is connected with the moving plate in a sliding mode through a sliding block and a sliding groove.
Compared with the prior art, the beneficial effects of the utility model are that: this gas pipeline relief valve, through the lift of movable plate in the valve gap, can realize the extrusion to horizontal spring, and then adjust the critical pressure value of horizontal spring, and then adjust the opening and closing value of relief valve according to the safe value of gas pipeline difference, through the absorber plate, mutually supporting of heat absorption stick and elasticity gasbag, can absorb the heat in the gas pipeline, and promote the disk seat under the volume inflation of elasticity gasbag and rise, improve the sensitivity of relief valve, in addition, through the valve plate in the second ring flange, can guarantee the one-way circulation nature of gas in the second ring flange.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a side view of the present invention;
fig. 3 is a top view of the present invention;
fig. 4 is an enlarged view of a portion a of fig. 1 according to the present invention.
In the figure: 1. a valve body; 2. a first communication pipe; 3. a first flange plate; 4. a second communicating pipe; 5. a second flange plate; 6. a seal ring; 7. a valve seat; 8. a first connecting seat; 9. a second connecting seat; 10. a valve cover; 11. a fixed seat; 12. a screw; 13. a hand wheel; 14. moving the plate; 15. a horizontal spring; 16. a heat absorbing plate; 17. a heat absorption rod; 18. an elastic air bag; 19. a support bar; 20. a valve plate; 21. a torsion spring; 22. and a limiting block.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a gas pipeline safety valve comprises a valve body 1, a first communicating pipe 2 is welded at the bottom of the valve body 1, a first flange 3 is fixedly connected at the bottom of the first communicating pipe 2 through bolts, a second communicating pipe 4 is welded on the outer wall of one side of the valve body 1, a second flange 5 is fixedly connected at one end, far away from the valve body 1, of the second communicating pipe 4 through bolts, a sealing ring 6 is embedded in each of the outer walls of one side of the first flange 3 and the second flange 5, a valve seat 7 is arranged inside the valve body 1, a first connecting seat 8 is welded at the top of the valve body 1, a second connecting seat 9 is fixedly connected at the top of the first connecting seat 8 through bolts, a valve cover 10 is welded at the top of the second connecting seat 9, a fixing seat 11 is welded at the top of the valve cover 10, a screw rod 12 is connected at the central position of the top of the fixing seat 11 in, and the bottom of screw rod 12 is welded with movable plate 14, horizontal spring 15 is welded between movable plate 14 and valve seat 7, absorber plate 16 is welded at the bottom of movable plate 14, the bottom of absorber plate 16 is fixedly connected with elastic airbag 18 through the bolt, and absorber rod 17 is welded at the bottom center position of absorber plate 16, support rod 19 is welded on one side inner wall of second ring flange 5, two valve plates 20 are rotatably connected on one side outer wall of support rod 19 through the hinge, torsion spring 21 is welded between two valve plates 20, and limiting block 22 is welded at one side position close to valve plate 20 on one side inner wall of second ring flange 5.
The utility model discloses in: through holes are formed in the outer walls of one sides of the first flange plate 3 and the second flange plate 5; the pipeline safety valve is convenient to be connected with a fuel gas pipeline.
The utility model discloses in: the valve seat 7 is connected with the valve body 1 in a sliding way through a sliding block and a sliding groove; the lifting stability of the valve seat 7 in the valve body 1 is ensured.
The utility model discloses in: the number of the elastic air bags 18 is four, and the four elastic air bags 18 are symmetrically arranged at the bottom of the heat absorbing plate 16; the elastic air bags 18 are ensured to uniformly jack up the heat absorbing plate 16.
The utility model discloses in: the height of the valve seat 7 is larger than the inner diameter of the second communicating pipe 4; the valve seat 7 is ensured to fully shield the second communicating pipe 4.
The utility model discloses in: the fixed seat 11 is connected with the movable plate 14 in a sliding manner through a sliding block and a sliding groove; the lifting stability of the movable plate 14 in the fixed seat 11 is ensured.
The working principle is as follows: the first communicating pipe 2 is installed on a gas pipeline through a first flange 3, the second communicating pipe 4 is installed on an exhaust pipeline through a second flange 5, a hand wheel 13 is rotated, the hand wheel 13 drives a screw 12 to rotate, the screw 12 is connected with a fixed seat 11 in a screwing mode, the screw 12 drives a movable plate 14 to descend, the movable plate 14 extrudes a horizontal spring 15 in the descending process, the horizontal spring 15 is extruded to generate elastic deformation, the extrusion pressure of the horizontal spring 15 is further adjusted, when the pressure in the gas pipeline is increased to be larger than a critical point, a valve seat 7 is extruded to move upwards, the horizontal spring 15 is compressed under the force, the gas in the gas pipeline is discharged through the second communicating pipe 4 and the second flange 5, a valve plate 20 in the second flange 5 is extruded by the gas to rotate towards the exhaust pipeline, a torsion spring 21 is compressed under the force, and when the pressure value of the gas is recovered to be normal, the valve plate 20 returns to the original position, so that the one-way flow of the fuel gas in the second flange plate 5 is realized, when the interior of the fuel gas pipeline rises, the heat absorption rod 17 absorbs and transfers the heat to the heat absorption plate 16, the air pressure in the elastic air bag 18 is increased, and the elastic air bag 18 extrudes the bottom of the interior of the valve body 1 after expanding, so that the valve seat 7 is pushed to rise.
In summary, the following steps: this gas pipeline safety valve, through the lift of movable plate 14 in valve gap 10, can realize the extrusion to horizontal spring 15, and then adjust the critical pressure value of horizontal spring 15, and then adjust the opening and closing value of safety valve according to the different safe value of gas pipeline, through absorber plate 16, mutually supporting of absorber rod 17 and elasticity gasbag 18, can absorb the heat in the gas pipeline, and promote disk seat 7 and rise under the volume expansion of elasticity gasbag 18, improve the sensitivity of safety valve, in addition, through valve plate 20 in the second ring flange 5, can guarantee the one-way circulation nature of gas in the second ring flange 5.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a gas pipeline relief valve, includes valve body (1), its characterized in that: the bottom of the valve body (1) is welded with a first communicating pipe (2), the bottom of the first communicating pipe (2) is fixedly connected with a first flange (3) through bolts, the outer wall of one side of the valve body (1) is welded with a second communicating pipe (4), one end of the second communicating pipe (4) far away from the valve body (1) is fixedly connected with a second flange (5) through bolts, sealing rings (6) are embedded in the outer walls of one sides of the first flange (3) and the second flange (5), a valve seat (7) is arranged inside the valve body (1), a first connecting seat (8) is welded at the top of the valve body (1), a second connecting seat (9) is fixedly connected at the top of the first connecting seat (8) through bolts, a valve cover (10) is welded at the top of the second connecting seat (9), and a fixing seat (11) is welded at the top of the valve cover (10), the central position of the top of the fixed seat (11) is connected with a screw rod (12) in a screwing way through threads, the top end of the screw rod (12) is welded with a hand wheel (13), a moving plate (14) is welded at the bottom end of the screw rod (12), a horizontal spring (15) is welded between the moving plate (14) and the valve seat (7), the bottom of the moving plate (14) is welded with a heat absorbing plate (16), the bottom of the heat absorbing plate (16) is fixedly connected with an elastic air bag (18) through bolts, and the central position of the bottom of the heat absorbing plate (16) is welded with a heat absorbing rod (17), a support rod (19) is welded on the inner wall of one side of the second flange plate (5), the outer wall of one side of the supporting rod (19) is rotationally connected with two valve plates (20) through a hinge, a torsion spring (21) is welded between the two valve plates (20), and a limiting block (22) is welded on the inner wall of one side of the second flange plate (5) and is close to one side of the valve plate (20).
2. A gas pipeline safety valve according to claim 1, wherein: and through holes are formed in the outer walls of one sides of the first flange plate (3) and the second flange plate (5).
3. A gas pipeline safety valve according to claim 1, wherein: the valve seat (7) is connected with the valve body (1) in a sliding mode through a sliding block and a sliding groove.
4. A gas pipeline safety valve according to claim 1, wherein: the number of the elastic air bags (18) is four, and the four elastic air bags (18) are symmetrically arranged at the bottom of the heat absorbing plate (16).
5. A gas pipeline safety valve according to claim 1, wherein: the height of the valve seat (7) is larger than the inner diameter of the second communicating pipe (4).
6. A gas pipeline safety valve according to claim 1, wherein: the fixed seat (11) is connected with the moving plate (14) in a sliding mode through the sliding block and the sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020534704.8U CN212028662U (en) | 2020-04-13 | 2020-04-13 | Safety valve for gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020534704.8U CN212028662U (en) | 2020-04-13 | 2020-04-13 | Safety valve for gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212028662U true CN212028662U (en) | 2020-11-27 |
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ID=73490893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020534704.8U Active CN212028662U (en) | 2020-04-13 | 2020-04-13 | Safety valve for gas pipeline |
Country Status (1)
| Country | Link |
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| CN (1) | CN212028662U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970002A (en) * | 2021-09-06 | 2022-01-25 | 马鞍山亿科金属制品有限公司 | Check valve of flue pipe of gas water heater |
| CN115414697A (en) * | 2022-08-31 | 2022-12-02 | 河南联源生物科技股份有限公司 | Extraction equipment and extraction method for extracting active dendrobium polysaccharide from dendrobium |
-
2020
- 2020-04-13 CN CN202020534704.8U patent/CN212028662U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113970002A (en) * | 2021-09-06 | 2022-01-25 | 马鞍山亿科金属制品有限公司 | Check valve of flue pipe of gas water heater |
| CN113970002B (en) * | 2021-09-06 | 2024-03-15 | 马鞍山亿科金属制品有限公司 | One-way valve of flue pipe of gas water heater |
| CN115414697A (en) * | 2022-08-31 | 2022-12-02 | 河南联源生物科技股份有限公司 | Extraction equipment and extraction method for extracting active dendrobium polysaccharide from dendrobium |
| CN115414697B (en) * | 2022-08-31 | 2023-10-13 | 河南联源生物科技股份有限公司 | Extraction equipment and extraction method for extracting active dendrobium polysaccharide from dendrobium |
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