CN211693663U - Pressure relief structure for natural gas pipeline transportation - Google Patents
Pressure relief structure for natural gas pipeline transportation Download PDFInfo
- Publication number
- CN211693663U CN211693663U CN202020039955.9U CN202020039955U CN211693663U CN 211693663 U CN211693663 U CN 211693663U CN 202020039955 U CN202020039955 U CN 202020039955U CN 211693663 U CN211693663 U CN 211693663U
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- Prior art keywords
- pressure relief
- fixedly connected
- piston
- baffle
- pressure release
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000003345 natural gas Substances 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 24
- 239000007789 gas Substances 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model discloses a pressure release structure for natural gas line carries, which comprises a pipe body, the upper end fixedly connected with of body and its communicating pressure release pipe, the both sides of pressure release pipe all are equipped with rather than the communicating first pressure release hole in inside, be equipped with the spout on the downthehole top lateral wall of first pressure release, sliding connection has the baffle in the spout, be equipped with the slot corresponding with the baffle on the downthehole bottom lateral wall of first pressure release, the lower extreme of baffle extends to in the slot, the first spring of fixedly connected with between the top lateral wall in baffle and the spout, be equipped with the connecting rod in the pressure release pipe, be equipped with on the pressure release pipe inside wall with the communicating sliding gap of spout, the both ends of connecting rod run through respectively two sliding gaps and respectively with the lateral wall fixed connection of two baffles, sliding connection has the piston in. The utility model discloses a setting of multiple pressure release mechanism to the long defeated pipeline quick pressure release to improve gas transmission factor of safety.
Description
Technical Field
The utility model relates to a natural gas technology field especially relates to a pressure release structure for natural gas line carries.
Background
The long-distance gas transmission pipeline is a main artery of national economy and directly serves industrial production along the line and ordinary life of urban residents, and when the pressure of an outlet station exceeds a set value of the regulating valve in the closed gas transmission process of the long-distance gas transmission pipeline, the regulating valve is closed to be small and is not enough to be controlled within the range of the set value; or the pressure bearing of the pipelines in the station is too high, so that the safety of the pipelines or equipment is endangered; or when the regulating valve fails to play a regulating protection role, high-pressure relief is generally carried out through a pressure relief valve arranged on an outbound pipeline. High-pressure relief is a supplement to pressure regulation protection measures in the process of closed gas transmission.
The conventional pressure release valve is simple in structure, when overpressure exists in a long-distance pipeline, the pressure release valve cannot quickly release pressure, great harm is brought to the transportation of the oil pipeline, and gas leakage, transportation stop, explosion and even fire hazard and the like caused by ultrahigh pressure can occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving relief valve simple structure, when the superpressure in the long distance pipeline, the unable quick pressure release of relief valve brings very big harm for oil pipeline carries, and the pressure release structure who is used for natural gas line to carry that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a pressure relief structure for natural gas pipeline transportation comprises a pipe body, wherein the upper end of the pipe body is fixedly connected with a pressure relief pipe communicated with the pipe body, two sides of the pressure relief pipe are respectively provided with a first pressure relief hole communicated with the inside of the pressure relief pipe, the side wall of the top end in the first pressure relief hole is provided with a chute, a baffle is connected in the chute in a sliding manner, the side wall of the bottom end in the first pressure relief hole is provided with a slot corresponding to the baffle, the lower end of the baffle extends into the slot, a first spring is fixedly connected between the baffle and the side wall of the top end in the chute, the pressure relief pipe is internally provided with a connecting rod, the inner side wall of the pressure relief pipe is provided with a sliding opening communicated with the chute, two ends of the connecting rod respectively penetrate through the two sliding openings and are respectively and fixedly connected with the side walls of, the lower extreme of bracing piece and the upper end fixed connection of connecting rod, the upper end of piston is equipped with the closing plate, the lower extreme of closing plate offsets with the upper end of piston, be equipped with the second pressure release hole in the piston, the lower extreme fixedly connected with two slide bars of closing plate, the upper end of piston is equipped with the slide opening corresponding with the slide bar, the lower extreme of slide bar extends to in the slide opening, be sliding connection between slide bar and the slide opening, fixedly connected with second spring between the lower extreme of slide bar and the bottom end lateral wall in the slide opening.
Preferably, a filter screen is fixedly connected in the pressure relief pipe and is positioned at the upper end of the piston.
Preferably, the lower end of the sealing plate is fixedly connected with a rubber pad, and the lower end of the rubber pad is abutted against the side wall of the upper end of the piston.
Preferably, the side wall of the bottom end in the slot is fixedly connected with a rubber block, and the upper end of the rubber block is abutted against the side wall of the lower end of the baffle.
Preferably, the number of the sealing rings is multiple.
Preferably, the number of the support rods is at least two, and the two support rods are symmetrically arranged.
Has the advantages that:
1. when overpressure occurs in the pipe body, the air pressure drives the piston to move upwards, the sealing performance between the piston and the pressure relief pipe can be improved through the sealing ring, the piston drives the connecting rod to move through the supporting rod, the connecting rod drives the baffle to move upwards, the first spring is extruded at the same time, then pressure relief is carried out through the first pressure relief hole, meanwhile, the air pressure flows through the second pressure relief hole to drive the sealing plate to be away from the piston, the air pressure is relieved through the second pressure relief hole at the same time, the sliding rod is driven by the upward movement of the sealing plate, the sliding rod moves to drive the second spring to stretch, when the air pressure returns to be normal, the baffle is pushed through the restoring force of the first spring, the lower end of the baffle extends into the slot, so that the first pressure relief hole is sealed, the sliding rod is pulled through the restoring force of the second spring, the sealing plate abuts, the utility model, through the arrangement of the multiple pressure relief mechanism, can quickly relieve the pressure of the long-distance pipeline, thereby improving the safety coefficient of gas transmission;
2. through the setting of filter screen, can prevent that debris from falling into in the pressure release pipe, through the setting of rubber pad, can improve the sealed effect between closing plate and the piston, through the setting of block rubber, can improve the leakproofness between the bottom lateral wall in baffle and the slot, the quantity of sealing washer is a plurality of, can strengthen the leakproofness between piston and the pressure release pipe, and the quantity of bracing piece is two at least, and two bracing pieces are the symmetry setting, can improve the stationarity when the piston removes.
Drawings
Fig. 1 is a schematic structural diagram of a pressure relief structure for natural gas pipeline transportation according to the present invention;
fig. 2 is the utility model provides a pressure release structure's for natural gas line carries structural schematic diagram.
In the figure: the rubber gasket comprises a pipe body 1, a first pressure relief hole 2, a baffle 3, a first spring 4, a support rod 5, a filter screen 6, a second pressure relief hole 7, a sealing plate 8, a sliding rod 9, a rubber ring 10, a piston 11, a connecting rod 12, a rubber block 13, a second spring 14 and a rubber gasket 15.
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.
Referring to fig. 1-2, a pressure relief structure for natural gas pipeline transportation, comprising a pipe body 1, wherein the upper end of the pipe body 1 is fixedly connected with a pressure relief pipe communicated with the pipe body, two sides of the pressure relief pipe are respectively provided with a first pressure relief hole 2 communicated with the inside of the pressure relief pipe, the side wall of the top end in the first pressure relief hole 2 is provided with a chute, a baffle 3 is connected in the chute in a sliding way and used for opening and closing the first pressure relief hole 2, the side wall of the bottom end in the first pressure relief hole 2 is provided with a slot corresponding to the baffle 3, the lower end of the baffle 3 extends into the slot, a first spring 4 is fixedly connected between the baffle 3 and the side wall of the top end in the chute and used for resetting the baffle 3, a connecting rod 12 is arranged in the pressure relief pipe and used for driving the baffle 3 to move, the inner side wall of the pressure relief pipe is provided with a, a piston 11 is connected in the pressure relief pipe in a sliding manner and used for driving a supporting rod 5 to move, a sealing ring 10 is sleeved on the piston 11 and used for improving the sealing property between the piston 11 and the inner side wall of the pressure relief pipe, the supporting rod 5 is fixedly connected to the lower end of the piston 11 and used for driving a connecting rod 12 to move, the lower end of the supporting rod 5 is fixedly connected to the upper end of the connecting rod 12, a sealing plate 8 is arranged at the upper end of the piston 11 and used for opening and closing the second pressure relief hole 7, the lower end of the sealing plate 8 abuts against the upper end of the piston 11, a second pressure relief hole 7 is arranged in the piston 11, two sliding rods 9 are fixedly connected to the lower end of the sealing plate 8 and used for improving the stability of the sealing plate 8 during moving, a sliding hole corresponding to the sliding rod 9 is arranged at the upper end of the piston 11, the lower end of the sliding rod 9 extends into, for restoring the sealing plate 8.
In this embodiment, fixedly connected with filter screen 6 in the pressure release pipe, filter screen 6 is located the upper end of piston 11, in order to prevent debris from falling into the pressure release pipe, the lower extreme fixedly connected with rubber pad 15 of closing plate 8, the lower extreme of rubber pad 15 offsets with the upper end lateral wall of piston 11, in order to improve the sealed effect between closing plate 8 and the piston 11, fixedly connected with block rubber 13 on the lateral wall of bottom in the slot, the upper end of block rubber 13 offsets with the lower extreme lateral wall of baffle 3, in order to improve the leakproofness between baffle 3 and the bottom lateral wall in the slot, the quantity of sealing washer 10 is a plurality of, in order to strengthen the leakproofness between piston 11 and the pressure release pipe, the quantity of bracing piece 5 is two at least, and two bracing pieces 5 are the symmetry setting, in order to improve the stationarity when piston.
In this embodiment, when overpressure occurs in the pipe body 1, the air pressure drives the piston 11 to move upward, the sealing performance between the piston 11 and the pressure relief pipe can be improved through the sealing ring 10, the piston 11 drives the connecting rod 12 to move through the supporting rod 5, the connecting rod 12 drives the baffle plate 3 to move upward, and simultaneously extrudes the first spring 4, and then the pressure relief is performed through the first pressure relief hole 2, meanwhile, the air pressure flows through the second pressure relief hole 7 to drive the sealing plate 8, so that the sealing plate 8 is away from the piston 11, the air pressure is simultaneously relieved through the second pressure relief hole 7, the sealing plate 8 moves upward to drive the sliding rod 9, the sliding rod 9 moves to drive the second spring 14 to stretch, when the air pressure returns to normal, the baffle plate 3 is pushed through the restoring force of the first spring 4, so that the lower end of the baffle plate 3 extends into the slot, thereby closing the first pressure relief hole 2, the sliding, make closing plate 8 offset with the upper end lateral wall of piston 11 to seal second pressure release hole 7, the utility model discloses a setting of multiple pressure release mechanism is to the quick pressure release of long defeated pipeline, thereby improves defeated gas factor of safety.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a pressure release structure for natural gas line carries, includes body (1), its characterized in that: the upper end of the pipe body (1) is fixedly connected with a pressure relief pipe communicated with the pipe body, two sides of the pressure relief pipe are respectively provided with a first pressure relief hole (2) communicated with the inside of the pressure relief pipe, the side wall of the top end in the first pressure relief hole (2) is provided with a chute, a baffle (3) is connected in the chute in a sliding way, the side wall of the bottom end in the first pressure relief hole (2) is provided with a slot corresponding to the baffle (3), the lower end of the baffle (3) extends into the slot, a first spring (4) is fixedly connected between the baffle (3) and the side wall of the top end in the chute, a connecting rod (12) is arranged in the pressure relief pipe, the inner side wall of the pressure relief pipe is provided with a sliding opening communicated with the chute, two ends of the connecting rod (12) respectively penetrate through the two sliding openings and are respectively fixedly connected with the side walls of the two baffles (3), the lower extreme fixedly connected with bracing piece (5) of piston (11), the lower extreme of bracing piece (5) and the upper end fixed connection of connecting rod (12), the upper end of piston (11) is equipped with closing plate (8), the lower extreme of closing plate (8) offsets with the upper end of piston (11), be equipped with second pressure release hole (7) in piston (11), two slide bars (9) of lower extreme fixedly connected with of closing plate (8), the upper end of piston (11) is equipped with the slide opening corresponding with slide bar (9), the lower extreme of slide bar (9) extends to in the slide opening, be sliding connection between slide bar (9) and the slide opening, fixedly connected with second spring (14) between the lower extreme of slide bar (9) and the side wall of bottom in the slide opening.
2. The pressure relief structure for natural gas pipeline transportation according to claim 1, wherein: a filter screen (6) is fixedly connected in the pressure relief pipe, and the filter screen (6) is located at the upper end of the piston (11).
3. The pressure relief structure for natural gas pipeline transportation according to claim 1, wherein: the lower end of the sealing plate (8) is fixedly connected with a rubber pad (15), and the lower end of the rubber pad (15) is abutted against the upper end side wall of the piston (11).
4. The pressure relief structure for natural gas pipeline transportation according to claim 1, wherein: fixedly connected with block rubber (13) on the bottom lateral wall in the slot, the upper end of block rubber (13) offsets with the lower extreme lateral wall of baffle (3).
5. The pressure relief structure for natural gas pipeline transportation according to claim 1, wherein: the number of the sealing rings (10) is multiple.
6. The pressure relief structure for natural gas pipeline transportation according to claim 1, wherein: the number of the support rods (5) is at least two, and the two support rods (5) are symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020039955.9U CN211693663U (en) | 2020-01-08 | 2020-01-08 | Pressure relief structure for natural gas pipeline transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020039955.9U CN211693663U (en) | 2020-01-08 | 2020-01-08 | Pressure relief structure for natural gas pipeline transportation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211693663U true CN211693663U (en) | 2020-10-16 |
Family
ID=72799987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020039955.9U Expired - Fee Related CN211693663U (en) | 2020-01-08 | 2020-01-08 | Pressure relief structure for natural gas pipeline transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211693663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112999871A (en) * | 2021-03-30 | 2021-06-22 | 广州润耀科技信息有限公司 | Stacked flat membrane separation equipment |
-
2020
- 2020-01-08 CN CN202020039955.9U patent/CN211693663U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112999871A (en) * | 2021-03-30 | 2021-06-22 | 广州润耀科技信息有限公司 | Stacked flat membrane separation equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201016 |
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| CF01 | Termination of patent right due to non-payment of annual fee |