CN204664530U - A kind of pressure relief valve - Google Patents
A kind of pressure relief valve Download PDFInfo
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- CN204664530U CN204664530U CN201520379774.XU CN201520379774U CN204664530U CN 204664530 U CN204664530 U CN 204664530U CN 201520379774 U CN201520379774 U CN 201520379774U CN 204664530 U CN204664530 U CN 204664530U
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Abstract
Pressure relief valve of the present utility model, comprise valve seat and be threadedly connected to the valve body above valve seat, be provided with spring and film in the valve pocket of valve body, described film by valve body and spring compression on spool, mineralization pressure chamber between the lower surface of film and the sealing surface of valve seat; Body top is provided with the screw of Regulation spring pressure, valve body is provided with the vent being communicated with valve pocket and air, valve seat is provided with the inlet hole and relief hole that are connected with pressure chamber.Pressure relief valve of the present utility model, the Pneumatic pressure within energy safe release 100KPa, solves the control problem of tranformer protection gas pressure well; Earth pressure release valve arrangement of the present utility model is simple, cost is low.
Description
Technical field
The utility model relates to a kind of pressure relief valve, belongs to automation Pneumatic Control Technology field.
Background technique
In automation pneumatic control field, pressure relief valve is important assembly, can ensure that system gas pressure is in safety range.Normal pressures relief valve cracking pressure all in MPa magnitude, but for micro positive pressure special applications, as KPa magnitude, does not have the product be suitable for.
Model utility content
The utility model, in order to overcome the deficiency of above technology, provides a kind of pressure relief valve, can solve the problem of Pneumatic pressure within safe release 100KPa.
the utility model overcomes the technological scheme that its technical problem adopts:
A kind of pressure relief valve, comprises valve seat and is threadedly connected to the valve body above valve seat, be provided with spring and film in the valve pocket of valve body, described film by valve body and spring compression on spool, mineralization pressure chamber between the lower surface of film and the sealing surface of valve seat; Body top is provided with the screw of Regulation spring pressure, valve body is provided with the vent being communicated with valve pocket and air, valve seat is provided with the inlet hole and relief hole that are connected with pressure chamber.
Preferred according to the utility model, described film is the rubber made membrane with ripple struction, has good elasticity.
the beneficial effects of the utility model are:
Pressure relief valve of the present utility model, the Pneumatic pressure within energy safe release 100KPa, solves the control problem of tranformer protection gas pressure well; Earth pressure release valve arrangement of the present utility model is simple, cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model pressure relief valve.
In figure, 1. valve seat; 2. inlet hole; 3. relief hole; 4. film; 5. vent; 6. spring; 7. screw; 8. valve body; 9. pressure chamber.
Embodiment
Better understand the utility model for the ease of those skilled in the art, be described in further details below in conjunction with the drawings and specific embodiments to the utility model, following is only exemplary do not limit protection domain of the present utility model.
As shown in Figure 1, pressure relief valve of the present utility model, the valve body 8 comprising valve seat 1 and be threadedly connected to above valve seat, spring 6 and film 4 is provided with in the valve pocket of valve body 8, described film 4 is for having the rubber made membrane of ripple struction, have good elasticity, described film 4 is pressed on spool by valve body 8 and spring 6, mineralization pressure chamber 9 between the lower surface of film 4 and the sealing surface of valve seat 1; Body top is provided with the screw 7 of Regulation spring pressure, valve body is provided with the vent 5 being communicated with valve pocket and air, valve seat is provided with the inlet hole 2 and relief hole 3 that are connected with pressure chamber 9.
The maximum bearing pressure of general high-power transformer is 80KPa, in transportation process, requires that in transformer, tank pressure must not more than 40KPa.During use, the lower end mouth of pressure relief valve of the present utility model is connected with transformer, when pressure exceedes limit value, because inlet hole 2 is connected with pressure chamber 9, overpressure gases promotes the pressure that film 4 overcomes spring 6, pushed away from spool by film, overpressure gases is discharged to air from relief hole 3, meets the demands to keep transformer internal pressure.
Above only describes basic principle of the present utility model and preferred implementation, those skilled in the art can make many changes and improvements according to foregoing description, and these changes and improvements should belong to protection domain of the present utility model.
Claims (2)
1. a pressure relief valve, comprise valve seat (1) and be threadedly connected to the valve body (8) above valve seat, it is characterized in that: in the valve pocket of valve body (8), be provided with spring (6) and film (4), described film (4) is pressed on spool by valve body (8) and spring (6), mineralization pressure chamber (9) between the lower surface of film (4) and the sealing surface of valve seat (1); Body top is provided with the screw (7) of Regulation spring pressure, valve body is provided with the vent (5) being communicated with valve pocket and air, valve seat is provided with the inlet hole (2) and relief hole (3) that are connected with pressure chamber (9).
2. pressure relief valve according to claim 1, is characterized in that: described film (4) is for having the rubber made membrane of ripple struction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520379774.XU CN204664530U (en) | 2015-06-04 | 2015-06-04 | A kind of pressure relief valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520379774.XU CN204664530U (en) | 2015-06-04 | 2015-06-04 | A kind of pressure relief valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204664530U true CN204664530U (en) | 2015-09-23 |
Family
ID=54134913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520379774.XU Active CN204664530U (en) | 2015-06-04 | 2015-06-04 | A kind of pressure relief valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204664530U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838391A (en) * | 2017-03-29 | 2017-06-13 | 中石化江汉石油工程有限公司 | Cable perforation automatic safe relief valve |
-
2015
- 2015-06-04 CN CN201520379774.XU patent/CN204664530U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106838391A (en) * | 2017-03-29 | 2017-06-13 | 中石化江汉石油工程有限公司 | Cable perforation automatic safe relief valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |