CN211924962U - Pressure relief device - Google Patents
Pressure relief device Download PDFInfo
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- CN211924962U CN211924962U CN201922127303.0U CN201922127303U CN211924962U CN 211924962 U CN211924962 U CN 211924962U CN 201922127303 U CN201922127303 U CN 201922127303U CN 211924962 U CN211924962 U CN 211924962U
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- pressure relief
- valve body
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- relief device
- pressure
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Abstract
The utility model discloses a pressure relief device, which comprises a main valve body, a control panel, a ventilation baffle, a guide component and an elastic reset piece; the control plate is hermetically fixed in the main valve body and is provided with an air guide hole; the guide assembly is arranged in the main valve body, the guide assembly is connected with the ventilation baffle through an elastic reset piece, and the guide assembly can limit the ventilation baffle to move along the axial direction of the main valve body; when the pressure relief device is in a non-pressure relief state, the vent baffle seals the air guide hole; when the pressure relief device is in a pressure relief state, liquid in the main valve body can push the ventilation baffle to compress the elastic reset piece to expose the air guide hole. Because the guide assembly can limit the axial movement of the ventilation baffle plate along the main valve body, the problem of inaccurate sealing and leakage caused by the shaking of the ventilation baffle plate is avoided, and the stability and the reliability of the pressure relief device are improved.
Description
Technical Field
The utility model belongs to the technical field of the pressure release equipment technique on closed system or the pipeline and specifically relates to a pressure relief device is related to.
Background
The pressure relief valve, also known as a safety valve, can open and close automatically according to the operating pressure of system, generally install protection system safety on equipment or the pipeline of closed system, when equipment or pipeline internal pressure surpassed the relief valve and set pressure, automatic opening pressure relief promptly guarantees that equipment and pipeline internal medium pressure are under the set pressure, protection equipment and pipeline prevent to meet accident. In the extraction process of the shale gas, the shale gas is required to be led out, the shale gas belongs to combustible gas, the control on the gas transmission pressure of the shale gas is very strict, and the use of a pressure release valve is required to ensure the safety of gas transmission.
In order to realize pressure relief, the utility model with application number 201720095203.2 discloses a one-way pressure relief valve, which consists of a straight sleeve valve body, a sealing ball and an elastic rubber band; one end of the elastic rubber band is fixedly connected with the sealing ball; the inner wall of the straight sleeve valve body is provided with a valve seat matched with the sealing ball, the sealing ball is limited on one side of the valve seat, and the inner wall of the straight sleeve valve body on the other side of the valve seat opposite to the sealing ball is provided with a barb; a support rod for tensioning the elastic rubber band is arranged in the straight sleeve valve body between the barb and the valve seat; the other end of the elastic rubber band is provided with a sleeve button for sleeving the barb. During the use, because elasticity rubber band and ball sealer all do not have stop device, consequently, the ball sealer can take place the skew in the use, causes the elasticity rubber band to entangle together, perhaps can not seal the problem of disk seat, influences the normal use of ball sealer.
Therefore, how to improve the stability and reliability of the pressure relief device is a technical problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a pressure relief device, which can improve the stability and reliability of the pressure relief device.
In order to achieve the above object, the present invention provides the following solutions:
a pressure relief device comprises a main valve body, a control plate, a ventilation baffle, a guide assembly and an elastic reset piece;
the control panel is fixed in the main valve body in a sealing mode, and air guide holes are formed in the control panel;
the guide assembly is installed in the main valve body, the guide assembly is connected with the ventilation baffle through an elastic reset piece, and the guide assembly can limit the ventilation baffle to move axially along the main valve body;
when the pressure relief device is in a non-pressure relief state, the vent baffle seals the air guide hole;
when the pressure relief device is in a pressure relief state, liquid in the main valve body can push the vent baffle to compress the elastic reset piece to expose the air guide hole.
In a specific embodiment, the guide assembly comprises a fixing piece and a first decompression fixing cylinder;
the fixing piece is fixed in the main valve body, and a through hole for communicating two sides of the fixing piece is formed in the fixing piece;
the first pressure relief fixing cylinder is mounted on the fixing piece, and one end of the elastic resetting piece is connected with the first pressure relief fixing cylinder;
the side of the ventilation baffle close to the fixing piece is fixedly provided with a second pressure relief fixing cylinder, the other end of the elastic resetting piece is fixed in the second pressure relief fixing cylinder, and the second pressure relief fixing cylinder is sleeved outside the first pressure relief fixing cylinder and can axially slide along the outer side surface of the first pressure relief fixing cylinder.
In another specific embodiment, the fixing member is a circular plate, the circular plate is hermetically installed in the main valve body, and the through hole is opened in the circular plate.
In another specific embodiment, the through holes are fan-shaped and are evenly distributed along the axis of the circular plate.
In another specific embodiment, the elastic return member is a return spring or a gas spring.
In another specific embodiment, said pressure relief device further comprises an air intake conduit;
the air inlet pipeline is connected to the air inlet end of the main valve body in a conduction mode.
In another specific embodiment, said pressure relief device further comprises an outlet conduit;
the air outlet pipeline is connected to the air outlet end of the main valve body in a conduction mode.
In another specific embodiment, the pressure relief device further comprises a first flange;
the first flange plate is welded at one end, far away from the main valve body, of the air inlet pipeline;
and/or
The pressure relief device also comprises a second flange plate;
the second flange plate is welded at one end, far away from the main valve body, of the air outlet pipeline.
In another specific embodiment, the pressure relief device further comprises a pressure gauge;
the pressure gauge is installed on the main valve body, and the detection end of the pressure gauge extends into the main valve body and is located between the air inlet end of the main valve body and the control panel.
In another specific embodiment, the fixing member is detachably mounted in the main valve body by a bolt;
and/or
The first pressure relief fixing cylinder is welded on the fixing piece;
and/or
The second pressure relief fixing cylinder is detachably connected with the ventilation baffle through a bolt;
and/or
The air inlet pipeline is sleeved at the air inlet end of the main valve body;
and/or
The air outlet pipeline is sleeved at the air outlet end of the main valve body.
According to the utility model discloses an each embodiment can make up as required wantonly, and the embodiment that obtains after these combinations is also in the utility model discloses the scope is the utility model discloses a part of the concrete implementation mode.
In a specific embodiment of the present invention, the pressure relief device is conductively connected to the equipment or pipeline to be used. In a normal state, namely in a non-pressure relief state, the vent baffle seals the air guide hole on the control panel, and the control panel is sealed and fixed in the main valve body, so that two ends of the main valve body are isolated, and equipment or a pipeline is normally used. When the pressure of equipment or pipeline is big enough, when needing the pressure release, the power compression elasticity that liquid acted on the baffle that ventilates resets and exposes the gas guide hole for the both ends of the main valve body switch on, and then realize the pressure release. The utility model discloses in, because the direction subassembly can spacing baffle of ventilating along main valve body axial displacement, consequently, avoided the baffle of ventilating to rock, cause sealed inaccurate, cause the problem of leakage, improved pressure relief device's stability and reliability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without any novelty.
Fig. 1 is a schematic structural view of a pressure relief device provided by the present invention;
fig. 2 is a schematic cross-sectional structural view of a valve body of the pressure relief device provided by the present invention;
fig. 3 is the schematic view of the local structure of the pressure relief device provided by the present invention.
Wherein, in fig. 1-3:
the main valve body 1, the control panel 2, the vent flap 3, the elasticity piece 4 that resets, air guide hole 201, mounting 5, the fixed section of thick bamboo 6 of first pressure release, through-hole 501, the fixed section of thick bamboo 12 of second pressure release, admission line 7, outlet duct 8, first ring flange 9, second ring flange 10, pressure gauge 11.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to fig. 1 to 3 and the detailed description.
Example one
The utility model provides a pressure relief device, wherein, pressure relief device includes the main valve body 1, control panel 2, vent flap 3, direction subassembly and elasticity piece 4 that resets.
The control panel 2 is fixed in the main valve body 1 in a sealing way, the control panel 2 is provided with an air guide hole 201, and the main valve body 1 can be a cylinder or a square cylinder and also can be in other shapes. The main valve body 1 is exemplified as a cylinder.
The air-guide holes 201 may be circular holes, square holes or holes of other shapes, and correspondingly, the vent baffle 3 is also a circular plate or a square plate, in this embodiment, the air-guide holes 201 are circular holes, and the vent baffle 3 is a circular plate. Specifically, the air hole 201 may be an equal-diameter hole, or may gradually increase in diameter from the air inlet end of the main valve body 1 to the air outlet end of the main valve body 1, or the air hole 201 may be composed of an equal-diameter hole and a divergent hole, the equal-diameter hole and the divergent hole are sequentially disposed from the air inlet end of the main valve body 1 to the air outlet end of the main valve body 1, and the equal-diameter hole and the divergent hole are coaxial. Correspondingly, the sealing end of the vent baffle 3 and the air vent 201 can be provided with a conical bulge or a circular bulge.
The direction subassembly is installed in the main valve body 1, and the direction subassembly is connected through elasticity piece 4 that resets with the baffle 3 of ventilating, and the direction subassembly can spacing baffle 3 of ventilating along main valve body 1 axial displacement.
When the pressure relief device is in a non-pressure relief state, the vent baffle 3 seals the vent hole 201.
When the pressure relief device is in a pressure relief state, liquid in the main valve body 1 can push the vent baffle 3 to compress the elastic reset piece 4 to expose the air guide hole 201.
And the pressure relief device is connected to the equipment or the pipeline to be used in a conduction mode. In a normal state, namely in a non-pressure relief state, the vent baffle 3 seals the air guide hole 201 on the control panel 2, and the control panel 2 is sealed and fixed in the main valve body 1, so that two ends of the main valve body 1 are isolated, and equipment or a pipeline is normally used. When the pressure of equipment or pipeline is big enough, when needing the pressure release, the power compression elasticity that liquid acted on the baffle 3 that ventilates resets 4 and exposes air guide hole 201 for main valve body 1's both ends switch on, and then realize the pressure release. The utility model discloses in, because the direction subassembly can spacing control panel 2 along 1 axial displacement of the main valve body, consequently, avoided control panel 2 to rock, cause sealed inaccurate, cause the problem of leakage. The stability and the reliability of the pressure relief device are improved.
Example two
The utility model provides a second embodiment, the pressure relief device in this embodiment is similar with the pressure relief device in embodiment one's structure, just no longer has been repeated the same part, only introduces the difference.
In this embodiment, the utility model discloses a direction subassembly includes mounting 5 and the fixed section of thick bamboo 6 of first pressure release, and mounting 5 is fixed in the main valve body 1, and sets up the through-hole 501 that switches on 5 both sides of mounting on mounting 5. The first pressure relief fixing cylinder 6 is installed on the fixing part 5, and one end of the elastic resetting part 4 is connected with the first pressure relief fixing cylinder 6. The side that control panel 2 is close to mounting 5 is fixed with the solid fixed cylinder of second pressure release 12, and the other end that elasticity resets 4 is fixed in the solid fixed cylinder of second pressure release 12, and the solid fixed cylinder of first pressure release 6 of the solid fixed cylinder of second pressure release 12 overcoat, and can slide along the solid fixed cylinder of first pressure release 6 lateral surfaces axial. The second relief cylinder 12 may be fitted around the first relief cylinder 6. In the present embodiment, the second pressure releasing cylinder 12 is sleeved outside the first pressure releasing cylinder 6 and can slide axially along the outer side surface of the first pressure releasing cylinder 6. Specifically, the shapes of the first pressure relief fixing cylinder 6 and the second pressure relief fixing cylinder 12 are not limited, and in this embodiment, the first pressure relief fixing cylinder 6 and the second pressure relief fixing cylinder 12 are both circular cylinders as an example.
Further, in order to achieve the smoothness of the axial sliding of the second pressure release fixing cylinder 12 along the outer side surface of the first pressure release fixing cylinder 6, a ball which can roll along the outer side surface of the first pressure release fixing cylinder 6 may be embedded inside the second pressure release fixing cylinder 12.
Further, the utility model discloses a mounting 5 is the circular slab, and circular slab seal installation is in main valve body 1, and through-hole 501 sets up on the circular slab. It should be noted that the fixing member 5 may also be a long strip plate fixed in the main valve body 1, and the fixing member 5 may also be a frame body fixed in the main valve body 1. In the present embodiment, the fixing member 5 is a circular plate.
Further, the through holes 501 are fan-shaped holes, and the number of the through holes is multiple and is uniformly distributed along the axis of the circular plate.
Further, the utility model discloses an elasticity piece 4 that resets is reset spring or air spring, and it should be explained that elasticity piece 4 that resets also can be other elastic components. The elastic restoring member 4 is taken as an air spring in the embodiment as an example.
Further, the utility model discloses a pressure relief device still includes inlet line 7, and inlet line 7 turn-on connection is at the inlet end of the main valve body 1, is convenient for be connected with the equipment or the pipeline of waiting to be connected.
In order to be convenient for further realize the admission line 7 with treat the equipment of being connected or being connected of pipeline, the utility model discloses a pressure relief device still includes first ring flange 9, and the welding of first ring flange 9 is in the one end that main valve body 1 was kept away from to admission line 7, through first ring flange 9 realize with treat the equipment of being connected or the pipeline can dismantle be connected.
Further, the utility model discloses a pressure relief device still includes pipeline 8 of giving vent to anger, and pipeline 8 turn-on connection of giving vent to anger is convenient for and is connected with the equipment or the pipeline of treating to be connected at the end of giving vent to anger of main valve body 1.
In order to be convenient for further realize giving vent to anger pipeline 8 and the equipment of treating being connected or being connected of pipeline, the utility model discloses a pressure relief device still includes second ring flange 10, and the welding of second ring flange 10 is in the one end of giving vent to anger pipeline 8 and keeping away from main valve body 1, through second ring flange 10 realize with the equipment of treating being connected or the dismantling of pipeline be connected.
Further, the utility model discloses a pressure relief device still includes pressure gauge 11, and pressure gauge 11 is installed on the main valve body 1, and the sense terminal of pressure gauge 11 extends to the main valve body 1 in, and is in between the inlet end of the main valve body 1 and the control panel 2, is convenient for carry out real time monitoring to the pressure of the inlet end of the main valve body 1.
Further, the utility model discloses a mounting 5 passes through bolt demountable installation in the main valve body 1, the dismouting of mounting 5 of being convenient for. The fixing member 5 may be fixed by other fixing means, such as welding.
Further, the utility model discloses a fixed section of thick bamboo 6 welding of first pressure release has strengthened the firm in connection degree of a fixed section of thick bamboo 6 of first pressure release and mounting 5 on mounting 5.
Further, the utility model discloses a fixed section of thick bamboo 12 of second pressure release passes through the bolt and can dismantle with the baffle 3 of ventilating and be connected, the dismouting of the fixed section of thick bamboo 12 of second pressure release and the baffle 3 of ventilating of being convenient for, it needs to explain, also can weld the fixed section of thick bamboo 12 of second pressure release and the baffle 3 of ventilating.
Further, the utility model discloses an inlet line 7 cup joints at the inlet end of the main valve body 1, and outlet line 8 cup joints at the end of giving vent to anger of the main valve body 1.
When using this pressure relief device, operating personnel at first dredges the outlet duct of shale gas and is connected to this pressure relief device's admission line 7 through first ring flange 9 in, with in outlet duct 8 is connected to the outlet duct of shale gas through second ring flange 10, switch on whole pressure relief device, alright put into use. The air inlet pipe of the shale gas is opened, the normal operation is carried out, the pressure gauge 11 can monitor the air inlet pressure of the shale gas, when the air inlet pressure of the shale gas is insufficient, the shale gas cannot push the ventilating baffle 3 to be separated from the control board 2 through the self pressure, and the air guide of the shale gas cannot be realized; when the air inlet pressure of the shale gas is greater than the damping force of the gas spring, the ventilation baffle 3 is pushed away from the gas guide hole 201 to guide the shale gas, the shale gas can be smoothly output to the gas outlet pipeline 8 through the vent hole, and the whole process can be used for pressure relief in the shale gas conveying process.
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 an 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 article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in an article or device that comprises the element.
The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A pressure relief device is characterized by comprising a main valve body, a control plate, a ventilation baffle, a guide assembly and an elastic reset piece;
the control panel is fixed in the main valve body in a sealing mode, and air guide holes are formed in the control panel;
the guide assembly is installed in the main valve body, the guide assembly is connected with the ventilation baffle through an elastic reset piece, and the guide assembly can limit the ventilation baffle to move axially along the main valve body;
when the pressure relief device is in a non-pressure relief state, the vent baffle seals the air guide hole;
when the pressure relief device is in a pressure relief state, liquid in the main valve body can push the vent baffle to compress the elastic reset piece to expose the air guide hole.
2. The pressure relief device of claim 1, wherein said pilot assembly comprises a fixture and a first pressure relief cylinder;
the fixing piece is fixed in the main valve body, and a through hole for communicating two sides of the fixing piece is formed in the fixing piece;
the first pressure relief fixing cylinder is mounted on the fixing piece, and one end of the elastic resetting piece is connected with the first pressure relief fixing cylinder;
the side of the ventilation baffle close to the fixing piece is fixedly provided with a second pressure relief fixing cylinder, the other end of the elastic resetting piece is fixed in the second pressure relief fixing cylinder, and the second pressure relief fixing cylinder is sleeved outside the first pressure relief fixing cylinder and can axially slide along the outer side surface of the first pressure relief fixing cylinder.
3. The pressure relief device according to claim 2, wherein said securing member is a circular plate, said circular plate is sealingly mounted in said main valve body, and said through hole is opened in said circular plate.
4. The pressure relief device according to claim 3, wherein said through holes are fan-shaped and are evenly distributed along the axis of said circular plate.
5. The pressure relief device of claim 2, wherein said resilient return is a return spring or a gas spring.
6. The pressure relief device according to claim 2, further comprising an air inlet conduit;
the air inlet pipeline is connected to the air inlet end of the main valve body in a conduction mode.
7. The pressure relief device according to claim 6, further comprising an outlet conduit;
the air outlet pipeline is connected to the air outlet end of the main valve body in a conduction mode.
8. The pressure relief device according to claim 7, further comprising a first flange;
the first flange plate is welded at one end, far away from the main valve body, of the air inlet pipeline;
and/or
The pressure relief device also comprises a second flange plate;
the second flange plate is welded at one end, far away from the main valve body, of the air outlet pipeline.
9. The pressure relief device according to any of claims 1-8, further comprising a pressure gauge;
the pressure gauge is installed on the main valve body, and the detection end of the pressure gauge extends into the main valve body and is located between the air inlet end of the main valve body and the control panel.
10. The pressure relief device according to claim 7, wherein said securing member is removably mounted within said main valve body by a bolt;
and/or
The first pressure relief fixing cylinder is welded on the fixing piece;
and/or
The second pressure relief fixing cylinder is detachably connected with the ventilation baffle through a bolt;
and/or
The air inlet pipeline is sleeved at the air inlet end of the main valve body;
and/or
The air outlet pipeline is sleeved at the air outlet end of the main valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922127303.0U CN211924962U (en) | 2019-11-29 | 2019-11-29 | Pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922127303.0U CN211924962U (en) | 2019-11-29 | 2019-11-29 | Pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211924962U true CN211924962U (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922127303.0U Active CN211924962U (en) | 2019-11-29 | 2019-11-29 | Pressure relief device |
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| Country | Link |
|---|---|
| CN (1) | CN211924962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021253865A1 (en) * | 2021-01-15 | 2021-12-23 | 江苏宏牛环保集团有限公司 | Domestic waste percolate concentrated-solution pyrolysis treatment system |
-
2019
- 2019-11-29 CN CN201922127303.0U patent/CN211924962U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021253865A1 (en) * | 2021-01-15 | 2021-12-23 | 江苏宏牛环保集团有限公司 | Domestic waste percolate concentrated-solution pyrolysis treatment system |
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