CN211649167U - Pressure relief device - Google Patents
Pressure relief device Download PDFInfo
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- CN211649167U CN211649167U CN201922488816.4U CN201922488816U CN211649167U CN 211649167 U CN211649167 U CN 211649167U CN 201922488816 U CN201922488816 U CN 201922488816U CN 211649167 U CN211649167 U CN 211649167U
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- 238000007789 sealing Methods 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims description 13
- 238000011084 recovery Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The application discloses pressure relief device belongs to the oil recovery instrument field. This pressure relief device includes: a valve and pressure relief assembly; the pressure relief assembly comprises a connecting body and a pressure relief thimble, and the first end of the connecting body is connected with the first end of the valve; the connector is of a hollow structure, and the pressure relief thimble is arranged in an inner cavity of the connector; the pressure relief thimble can jack open the sealing member of check valve when the connector connects with check valve soon. The application provides a pressure relief device, can push up the sealing member of check valve through the pressure release thimble, and then make a gap appear on the check valve, afterwards, high-pressure gas just can loop through the gap on the check valve, the second end of connector and the first end of connector reach the first end department of valve, and by the first end department at the valve under the effect of valve, finally, can open the valve and follow the aerial slow emission of oil lantern ring with high-pressure gas, thereby reduce technical staff's intensity of labour, the condition that can also avoid harm technical staff's personal safety simultaneously takes place.
Description
Technical Field
The application relates to the field of oil extraction tools, in particular to a pressure relief device.
Background
At present, a check valve is usually connected to an oil casing of an oil-gas well, and the check valve is communicated with the oil casing in an annular space. When an anomaly occurs in the check valve, the check valve needs to be removed from the oil casing and a new check valve attached to the oil casing. However, high-pressure gas often exists in the oil casing annulus, and at this time, if the single-flow valve is directly dismounted from the oil casing, the high-pressure gas can directly rush out from the oil casing annulus, so that the personal safety of technicians is damaged. Therefore, it is necessary to release the high-pressure gas in the oil casing annulus in advance.
In order to release the high-pressure gas in the oil casing ring, the high-pressure gas in the oil casing ring is normally directly pressed against the sealing element of the check valve through a steel wire at present, so that a gap is formed between the sealing element of the check valve and the shell of the check valve, and at the moment, the high-pressure gas in the oil casing ring is flushed out through the gap, and the purpose of releasing the high-pressure gas in the oil casing ring is achieved.
However, the method of releasing the high-pressure gas in the oil casing annulus by the steel wire pressing against the sealing member of the check valve is labor-intensive, and the high-pressure gas rushing out of the gap still damages the personal safety of the technician.
SUMMERY OF THE UTILITY MODEL
The application provides a pressure relief device, can solve technical staff's intensity of labour big and harm technical staff's personal safety's problem. The technical scheme is as follows:
a pressure relief device, comprising: a valve and pressure relief assembly;
the pressure relief assembly comprises a connecting body and a pressure relief thimble, a first end of the connecting body is connected with a first end of the valve, and a second end of the connecting body is used for being communicated with the one-way valve;
the connecting body is of a hollow structure, the pressure relief thimble is arranged in an inner cavity of the connecting body, the first end and the second end of the connecting body are communicated, and the pressure relief thimble is used for facing the one-way valve;
the pressure relief thimble can be in the connector with the sealing member of check valve backs up when the check valve connects soon.
Optionally, the pressure relief spike comprises: a chassis and a thimble;
the chassis is limited in the inner cavity of the connecting body, the first end of the ejector pin is fixedly connected with one side, close to the second end of the connecting body, of the chassis, and the second end of the ejector pin is used for facing the one-way valve.
Optionally, an inner cavity of the connecting body is provided with an inner thread, the chassis is provided with an outer thread, and the connecting body and the chassis are fixedly connected through the inner thread and the outer thread;
the chassis is also provided with one or more communication holes, and the one or more communication holes are communicated with the first end and the second end of the connecting body.
Optionally, the pressure relief device further comprises a plug;
the pressure relief hole is formed in the valve and communicated with the inner cavity of the valve, and the plug is detachably and hermetically connected with the pressure relief hole.
Optionally, the pressure relief device further comprises a first pressure gauge, and the first pressure gauge is detachably arranged at the second end of the valve.
Optionally, the pressure relief device further comprises a high-pressure pipe, and one end of the high-pressure pipe is detachably arranged at the second end of the valve.
Optionally, the pressure relief device further comprises a second pressure gauge, a first mounting hole is formed in the side wall of the second end of the valve, the first mounting hole is communicated with the inner cavity of the valve, and the second pressure gauge is mounted on the first mounting hole.
Optionally, the pressure relief device further comprises a third pressure gauge, a second mounting hole is formed in the side wall of the first end of the valve, the second mounting hole is communicated with the inner cavity of the valve, and the third pressure gauge is mounted on the second mounting hole.
Optionally, the cross-section of the connector is hexagonal.
Optionally, a first union is disposed at the second end of the valve, and one end of the first union, which is far away from the valve, is used for connecting with one end of the high-pressure pipe.
The beneficial effects that technical scheme that this application provided brought can include at least:
the second end of the connecting body can be firstly butted with the connecting end of the one-way valve under the state that the valve is kept closed, and the pressure relief thimble arranged in the inner cavity of the connecting body is ensured to face the one-way valve. And then, the connecting body can be screwed to the connecting end of the one-way valve, so that the second end of the connecting body is communicated with the one-way valve, and meanwhile, a sealing element of the one-way valve is pushed open by a pressure relief thimble facing the one-way valve, so that the one-way valve forms a circulation channel. At this moment, if the check valve is a check valve communicated with the oil sleeve annulus, and high-pressure gas is in the oil sleeve annulus, the high-pressure gas can sequentially pass through the flow channel, the second end of the connecting body and the first end of the connecting body to reach the first end of the valve connected to the first end of the connecting body, and is stopped at the first end of the valve under the action of the valve, and finally, the high-pressure gas can be slowly released from the oil sleeve annulus by opening the valve, so that the purpose of releasing the oil sleeve annulus is achieved. Therefore, the problems that the labor intensity of technicians is high when the technicians are pressed against the sealing piece of the check valve by force through the steel wire, and the personal safety of the technicians is damaged due to the fact that high-pressure gas is directly rushed out of the oil sleeve ring in the air are solved. Therefore, the pressure relief device provided by the embodiment of the application can reduce the labor intensity of technical personnel and can avoid the condition of damaging the personal safety of the technical personnel.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a pressure relief device according to an embodiment of the present disclosure;
FIG. 2 is a cross-sectional view of a pressure relief assembly provided in accordance with an embodiment of the present application;
FIG. 3 is a schematic diagram of another pressure relief device according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of another pressure relief device provided in the embodiments of the present application;
FIG. 5 is a schematic structural diagram of another pressure relief device provided in the embodiments of the present application;
FIG. 6 is a schematic structural diagram of another pressure relief device provided in the embodiments of the present application;
fig. 7 is a schematic structural diagram of another pressure relief device according to an embodiment of the present disclosure.
Reference numerals:
1: a valve; 2: a pressure relief assembly; 3: a plug; 4: a first pressure gauge; 5: a high pressure pipe; 6: a second pressure gauge; 7: a third pressure gauge;
11: a pressure relief vent; 12: a first mounting hole; 13: a second mounting hole; 14: a first movable joint; 15: a second movable joint;
21: a linker; 22: a pressure relief thimble;
221: a chassis; 222: a thimble;
2211: and a communicating hole.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a pressure relief device according to an embodiment of the present application. Fig. 2 is a cross-sectional view of a pressure relief assembly 2 provided in an embodiment of the present application, and referring to fig. 1 and 2, the pressure relief device may include: a valve 1 and a pressure relief assembly 2. The pressure relief assembly 2 comprises a connecting body 21 and a pressure relief thimble 22, wherein a first end of the connecting body 21 is connected with a first end of the valve 1, and a second end of the connecting body 21 is used for being communicated with a one-way valve. The connecting body 21 is of a hollow structure, the pressure relief thimble 22 is arranged in an inner cavity of the connecting body 21, the first end and the second end of the connecting body 21 are communicated, and the pressure relief thimble 22 is used for facing the one-way valve. The pressure relief thimble 22 can push open the sealing element of the one-way valve when the connecting body 21 is screwed with the one-way valve.
In this embodiment, the second end of the connecting body 21 may be first butted against the connecting end of the check valve while the valve 1 is kept closed, and it is ensured that the pressure relief thimble 22 disposed in the inner cavity of the connecting body 21 faces the check valve. Thereafter, the connecting body 21 may be screwed onto the connecting end of the check valve to communicate the second end of the connecting body 21 with the check valve, and the pressure relief spike 22 may be simultaneously pushed open the sealing member of the check valve to form a flow passage for the check valve. At this time, if the check valve is a check valve communicated with the oil casing annulus, and there is high-pressure gas in the oil casing annulus, then the high-pressure gas will sequentially pass through the flow channel, the second end of the connecting body 21 and the first end of the connecting body 21 to reach the first end of the valve 1 connected to the first end of the connecting body 21, and be stopped at the first end of the valve 1 under the action of the valve 1, and finally, the high-pressure gas can be slowly discharged from the oil casing annulus by opening the valve 1, so as to achieve the purpose of relieving the oil casing annulus. Therefore, the problems that the labor intensity of technicians is high when the technicians are pressed against the sealing piece of the check valve by force through the steel wire, and the personal safety of the technicians is damaged due to the fact that high-pressure gas is directly rushed out of the oil sleeve ring in the air are solved. Therefore, the pressure relief device provided by the embodiment of the application can reduce the labor intensity of technical personnel and can avoid the condition of damaging the personal safety of the technical personnel.
The first end of the connecting body 21 may be connected to the first end of the valve 1 through a screw thread, and of course, the first end of the connecting body 21 may also be connected to the first end of the valve 1 through other manners, for example, referring to fig. 3, the first end of the connecting body 21 may be connected to the first end of the valve 1 through the second union 15, which is not limited in this embodiment. In addition, the second end of the connecting body 21 may be in communication with the one-way valve through a thread, and of course, the second end of the connecting body 21 may also be in communication with the one-way valve through other manners, which is not specifically limited in the embodiment of the present application.
It can be seen from the above description that the sealing member of the check valve can be pushed open by screwing the connecting body 21 around the check valve, so that the high-pressure gas can be stopped at the first end of the valve 1, and then the oil casing can be depressurized by opening the valve 1. It can be seen that the ability of the pressure relief device to conveniently screw on the connector 21 is critical to improving the use experience of the pressure relief device.
Based on this, in some embodiments, the cross-section of the connecting body 21 may be hexagonal. When connecting body 21's cross section was the hexagon, be favorable to connecting body 21 to connect soon to the check valve through the mode of rotary tool centre gripping on connecting body 21 on, and then can promote this pressure relief device's use and experience. Wherein the rotating tool may be a pliers or the like. Of course, the rotary tool may also be other tools, and the cross section of the connecting body 21 may also be other shapes, for example, the cross section of the connecting body 21 may be a circle, a square, etc., and the shape of the cross section of the rotary tool and the shape of the cross section of the connecting body 21 are not particularly limited in the embodiments of the present application.
When the high pressure gas reaches the first end of the valve 1 and is stopped at the first end of the valve 1, it can be understood that the high pressure gas can be discharged to the external environment through the second end of the valve 1 by opening the valve 1, so as to release the oil casing annulus.
In some embodiments, referring to fig. 4, the pressure relief device may further comprise a high pressure tube 5, one end of the high pressure tube 5 being detachably disposed at the second end of the valve 1, the other end of the high pressure tube 5 being placed at a location remote from the technician. Thus, after the valve 1 is opened, high-pressure gas is discharged to the external environment far away from technicians by the high-pressure pipe 5, and obviously, the situation that the personal safety of the technicians is threatened when the oil casing is subjected to annular pressure relief can be better avoided.
It should be noted that, for convenience of detachably arranging one end of the high-pressure pipe 5 on the second end of the valve 1, referring to fig. 4, the second end of the valve 1 may be provided with a first union 14, and one end of the first union 14 far away from the valve 1 is used for connecting with one end of the high-pressure pipe 5. In this way, one end of the high-pressure pipe 5 can be detachably arranged on the second end of the valve 1 through the first movable joint 14, and the problem that technicians are high in labor intensity when the high-pressure pipe 5 is installed is solved.
It should be noted that, when the high-pressure gas is a polluting gas, the direct discharge of the high-pressure gas into the external environment may cause pollution to the external environment, and therefore, the other end of the high-pressure pipe 5 may be further connected to a gas storage tank, so that the high-pressure gas that pollutes the external environment is recovered into the gas storage tank. Therefore, the problem of environmental pollution caused by directly discharging high-pressure gas to the external environment can be avoided.
It should be noted that in some scenarios, a scenario may occur in which the high-pressure pipe 5 is blocked by a foreign object, and when the high-pressure pipe 5 is blocked by a foreign object, if the high-pressure pipe 5 cannot be timely found to be blocked by a foreign object, the valve 1 may be damaged by the high-pressure gas as the high-pressure gas is more and more stopped in the inner cavity of the high-pressure pipe 5 and the inner cavity of the valve 1. Based on this, in some embodiments, referring to fig. 5, the pressure relief device may further include a second pressure gauge 6, a first mounting hole 12 is formed in a side wall of the second end of the valve 1, the first mounting hole 12 is communicated with the inner cavity of the valve 1, and the second pressure gauge 6 is mounted on the first mounting hole 12. Thus, when it is found that the value of the second pressure gauge 6 starts to become larger, which means that the high pressure pipe 5 may be clogged by foreign matters, it is necessary to take out the clogging of the high pressure pipe 5 in order to prevent the valve 1 from being damaged as the pressure rises.
However, in a practical use scenario, when the high-pressure pipe 5 is blocked by a foreign object, it often takes a long time to take out the foreign object in the high-pressure pipe 5, which makes it still possible for the valve 1 to be damaged by the high-pressure gas during the process of taking out the foreign object in the high-pressure pipe 5, and based on this, in some embodiments, referring to fig. 5, the pressure relief device may further include a plug 3. Be provided with pressure release hole 11 on the valve 1, pressure release hole 11 and valve 1's inner chamber intercommunication, end cap 3 and 11 detachable sealing connection in pressure release hole. Like this, when the condition that high-pressure pipe 5 was blockked up by the foreign matter appears, can dismantle end cap 3 from pressure release hole 11, later, by the high-pressure gas in the inner chamber of high-pressure pipe 5 and valve 1's inner chamber just can be through the quick discharge in pressure release hole 11, and then can avoid valve 1 to be damaged by high-pressure gas.
It is also worth noting that in some scenarios there is no high pressure gas in the oil casing annulus. When there is no high pressure gas in the oil jacket annulus, it is apparent that the high pressure pipe 5 is still attached to the second end of the valve 1 and is doing no work. Therefore, it is also important to judge whether the oil casing is empty or not. It can be understood that when high-pressure gas exists in the oil casing annular space, the oil casing annular space can be firstly decompressed through the valve 1, and then the one-way valve is detached from the oil casing annular space. When no high-pressure gas exists in the oil casing annular space, the check valve can be directly detached from the oil casing annular space.
Based on this, in some embodiments, referring to fig. 6, the pressure relief device may further comprise a first pressure gauge 4, the first pressure gauge 4 being detachably disposed at the second end of the valve 1. Like this, just can judge whether have high-pressure gas in the oil casing ring air through first manometer 4 at first, when having high-pressure gas in the oil casing ring air, can hold dismantling first manometer 4 from valve 1's second, then hold high-pressure pipe 5 and install on valve 1's second and carry out the pressure release in order to the oil casing ring air, after the pressure release finishes, can dismantle the check valve from the oil casing ring air. When no high-pressure gas exists in the oil casing annular space, the check valve can be directly detached from the oil casing annular space.
Wherein, the mode of judging whether there is high-pressure gas in the oil casing ring air can be: first with first manometer 4 setting at the second end of valve 1, then open valve 1, observe the registration of first manometer 4 this moment, when the registration of first manometer 4 is 0, can regard this oil casing annular space not to have high-pressure gas, at this moment, can directly dismantle the check valve from the oil casing annular space. When the registration of first manometer 4 is not 0, can think that there is high-pressure gas in this oil casing annular space, at this moment, at first close valve 1, then hold first manometer 4 from the second of valve 1 and dismantle, later, install high-pressure tube 5 at the second of valve 1, after finishing, treat that high-pressure tube 5 installs, can open valve 1 again and carry out the pressure release to oil casing annular space, after the pressure release finishes, dismantle the check valve from oil casing annular space again.
It should be noted that, when the indication number of the first pressure gauge 4 is 0, it may be considered that no high-pressure gas in the oil casing annulus is only one possible method for judging whether high-pressure gas exists in the oil casing annulus shown in the embodiment of the present application, in an actual application scenario, it may also be judged that no high-pressure gas exists in the oil casing annulus based on other indication numbers of the first pressure gauge 4, for example, it may also be considered that no high-pressure gas exists in the oil casing annulus when the indication number of the first pressure gauge 4 is less than 0.01MPa, which is not specifically limited in the embodiment of the present application.
It can be easily seen from the above description that when it is judged that there is high-pressure gas in the oil casing annulus through first pressure gauge 4, first pressure gauge 4 needs to be detached from the second end of valve 1, and then high-pressure pipe 5 is installed to the second end of valve 1, so that the labor intensity of the technician is large.
Based on this, in some embodiments, referring to fig. 7, the pressure relief device may further include a third pressure gauge 7, a side wall of the first end of the valve 1 is provided with a second mounting hole 13, the second mounting hole 13 is communicated with an inner cavity of the valve 1, and the third pressure gauge 7 is mounted on the second mounting hole 13. Thus, when the valve 1 is in a closed state, because the third pressure gauge 7 is installed on the second installation hole 13 and the second installation hole 13 is located on the side wall of the first end of the valve 1, after the sealing member of the check valve is pushed open by the pressure relief thimble 22, the pressure of the high-pressure gas reaching the first end of the valve 1 can be directly read by the third pressure gauge 7, so that the condition that the first pressure gauge 4 needs to be detached from the second end of the valve 1 and then the high-pressure pipe 5 is installed to the second end of the valve 1 when the high-pressure gas is judged to be in the oil casing annulus is not needed, and the labor intensity of technicians is reduced.
Next, the pressure relief spike 22 will be described in detail in the embodiment of the present application.
In some embodiments, referring to fig. 2, the pressure relief spike 22 may comprise: a bottom plate 221 and a thimble 222. The bottom plate 221 is limited in the inner cavity of the connecting body 21, a first end of the thimble 222 is fixedly connected with one side of the bottom plate 221 close to a second end of the connecting body 21, and the second end of the thimble 222 is used for facing the one-way valve. The first end of the thimble 222 may be fixedly connected to a side of the chassis 221 near the second end of the connector 21 by welding, and of course, the first end of the thimble 222 may also be fixedly connected to a side of the chassis 221 near the second end of the connector 21 by other methods, which is not specifically limited in this embodiment of the application.
When the pressure relief spike 22 includes a bottom plate 221 and a spike 222, in some embodiments, referring to fig. 2, an inner cavity of the connecting body 21 may be provided with an inner thread, and an outer thread may be provided on the bottom plate 221, and the connecting body 21 and the bottom plate 221 are fixedly connected through the inner thread and the outer thread. The bottom plate 221 may further include one or more communication holes 2211, and the one or more communication holes 2211 communicate the first end and the second end of the connection body 21. Thus, when the connector 21 is screwed around the check valve, the second end of the thimble 222 will push the sealing element of the check valve open, so that a gap appears on the check valve, and further the annular space of the oil casing is decompressed.
When the pressure relief thimble 22 is installed in the inner cavity of the connection body 21, the first end of the thimble 222 is first fixedly connected to a side of the bottom plate 221 near the second end of the connection body 21, and then the bottom plate 221 is screwed into the inner cavity of the connection body 21 through an external thread, while the second end of the thimble 222 faces the direction of the check valve. In this way, the installation of the pressure relief spike 22 into the interior cavity of the connector body 21 is achieved.
The number of the communication holes 2211 may be 1, and of course, the number of the communication holes 2211 may be other numbers, which is not specifically limited in the embodiments of the present application. The shape of the communication hole 2211 may be circular, but the shape of the communication hole 2211 may be other shapes, such as square, triangle, etc., and the shape of the communication hole 2211 is not particularly limited in the embodiments of the present application.
In this embodiment, the second end of the connecting body 21 may be first butted against the connecting end of the check valve while the valve 1 is kept closed, and it is ensured that the pressure relief thimble 22 disposed in the inner cavity of the connecting body 21 faces the check valve. Thereafter, the connecting body 21 may be screwed onto the connecting end of the check valve to communicate the second end of the connecting body 21 with the check valve, and the pressure relief spike 22 may be simultaneously pushed open the sealing member of the check valve to form a flow passage for the check valve. At this time, if the check valve is a check valve communicated with the oil casing annulus, and there is high-pressure gas in the oil casing annulus, then the high-pressure gas will sequentially pass through the flow channel, the second end of the connecting body 21 and the first end of the connecting body 21 to reach the first end of the valve 1 connected to the first end of the connecting body 21, and be stopped at the first end of the valve 1 under the action of the valve 1, and finally, the high-pressure gas can be slowly discharged from the oil casing annulus by opening the valve 1, so as to achieve the purpose of relieving the oil casing annulus. Therefore, the problems that the labor intensity of technicians is high when the technicians are pressed against the sealing piece of the check valve by force through the steel wire, and the personal safety of the technicians is damaged due to the fact that high-pressure gas is directly rushed out of the oil sleeve ring in the air are solved. Therefore, the pressure relief device provided by the embodiment of the application can reduce the labor intensity of technical personnel and can avoid the condition of damaging the personal safety of the technical personnel.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A pressure relief device, comprising: a valve (1) and a pressure relief assembly (2);
the pressure relief assembly (2) comprises a connecting body (21) and a pressure relief thimble (22), a first end of the connecting body (21) is connected with a first end of the valve (1), and a second end of the connecting body (21) is used for being communicated with a one-way valve;
the connecting body (21) is of a hollow structure, the pressure relief thimble (22) is arranged in an inner cavity of the connecting body (21), the first end and the second end of the connecting body (21) are communicated, and the pressure relief thimble (22) is used for facing the one-way valve;
the pressure relief thimble (22) can jack the sealing element of the one-way valve when the connecting body (21) is screwed with the one-way valve.
2. The pressure relief device according to claim 1, wherein said pressure relief spike (22) comprises: a chassis (221) and a thimble (222);
the base plate (221) is limited in an inner cavity of the connecting body (21), a first end of the ejector pin (222) is fixedly connected with one side, close to a second end of the connecting body (21), of the base plate (221), and the second end of the ejector pin (222) faces the one-way valve.
3. The pressure relief device according to claim 2, wherein an inner cavity of the connecting body (21) is provided with an inner thread, the bottom plate (221) is provided with an outer thread, and the connecting body (21) and the bottom plate (221) are fixedly connected through the inner thread and the outer thread;
the chassis (221) is also provided with one or more communication holes (2211), and the one or more communication holes (2211) are communicated with the first end and the second end of the connecting body (21).
4. The pressure relief device according to claim 1, further comprising a stopper (3);
the pressure relief valve is characterized in that a pressure relief hole (11) is formed in the valve (1), the pressure relief hole (11) is communicated with an inner cavity of the valve (1), and the plug (3) is detachably and hermetically connected with the pressure relief hole (11).
5. The pressure relief device according to claim 1, further comprising a first pressure gauge (4), said first pressure gauge (4) being removably arranged at the second end of said valve (1).
6. A pressure relief device according to claim 1, characterized in that it further comprises a high pressure pipe (5), one end of said high pressure pipe (5) being detachably arranged at the second end of said valve (1).
7. The pressure relief device according to claim 6, characterized in that the pressure relief device further comprises a second pressure gauge (6), a first mounting hole (12) is formed in a side wall of the second end of the valve (1), the first mounting hole (12) is communicated with the inner cavity of the valve (1), and the second pressure gauge (6) is mounted on the first mounting hole (12).
8. The pressure relief device according to claim 1, further comprising a third pressure gauge (7), wherein a second mounting hole (13) is formed in a side wall of the first end of the valve (1), the second mounting hole (13) is communicated with an inner cavity of the valve (1), and the third pressure gauge (7) is mounted on the second mounting hole (13).
9. Pressure relief device according to claim 1, characterized in that the cross-section of the connecting body (21) is hexagonal.
10. The pressure relief device according to claim 1, characterized in that a second end of the valve (1) is provided with a first union (14), and an end of the first union (14) remote from the valve (1) is adapted to be connected to an end of a high pressure pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922488816.4U CN211649167U (en) | 2019-12-31 | 2019-12-31 | Pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922488816.4U CN211649167U (en) | 2019-12-31 | 2019-12-31 | Pressure relief device |
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| Publication Number | Publication Date |
|---|---|
| CN211649167U true CN211649167U (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922488816.4U Active CN211649167U (en) | 2019-12-31 | 2019-12-31 | Pressure relief device |
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| CN (1) | CN211649167U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215901A (en) * | 2021-12-27 | 2022-03-22 | 机械科学研究总院青岛分院有限公司 | Pressure relief mechanism for speed reducer and use method thereof |
-
2019
- 2019-12-31 CN CN201922488816.4U patent/CN211649167U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215901A (en) * | 2021-12-27 | 2022-03-22 | 机械科学研究总院青岛分院有限公司 | Pressure relief mechanism for speed reducer and use method thereof |
| CN114215901B (en) * | 2021-12-27 | 2024-03-19 | 机械科学研究总院青岛分院有限公司 | Decompression mechanism for speed reducer and application method thereof |
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