CN206929393U - A kind of cryogenic high pressure safety valve - Google Patents
A kind of cryogenic high pressure safety valve Download PDFInfo
- Publication number
- CN206929393U CN206929393U CN201720328896.5U CN201720328896U CN206929393U CN 206929393 U CN206929393 U CN 206929393U CN 201720328896 U CN201720328896 U CN 201720328896U CN 206929393 U CN206929393 U CN 206929393U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- connector
- bulge
- high pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model discloses a kind of cryogenic high pressure safety valve, including valve seat, valve body, valve top and valve rod, the outer end of described valve body is to being connected to connector, outer shaft ring portion is provided with connector, collar nut is arranged with valve body, interior collar part is provided with the inside of collar nut, attaching nut is connected with valve body screw thread and coordinated by interior collar part and the outer shaft ring portion of connector is fixed on valve end by connector；Seal washer is additionally provided between valve body and connector, and the end face for being connected with valve body the sealing ring of side is provided with the first bulge-structure, the end face that the connector of side is connected with seal washer is provided with the second bulge-structure.Cryogenic high pressure of the present utility model is sent out safely, and the sealing between connector and valve body is reliable, service life length.
Description
Technical field
The utility model belongs to valve technology field, and in particular to a kind of cryogenic high pressure safety valve.
Background technology
High-pressure safety valve is a kind of safeguard protection valve, and its opening and closing element is in long closed state under by external force effect；When setting
Pressure medium rise in standby or pipeline, automatically turns on during more than setting and prevents pipeline by outside discharge medium or set
Standby interior pressure medium is too high.High-pressure safety valve belongs to automatic valve class, and it is mainly used in boiler, on pressure vessels and pipes, to people
Body safety and equipment safety operation play important protective effect.
Existing high-pressure safety valve can be divided into Weight type, lever, pilot-operated type and spring, and high-pressure safety valve is applied to low
During warm medium, pressure is very high, and the junction between the jointing and valve body of arrival end, seal washer is easily because pressure is excessive
And fail, sealing reliability is poor, and service life is short.
Utility model content
The purpose of this utility model is：For problems of the prior art, there is provided a kind of cryogenic high pressure safety valve,
The arrival end of safety valve is connected firmly with connector, good airproof performance, reliably.
To achieve these goals, the technical solution adopted in the utility model is：
A kind of cryogenic high pressure safety valve, including valve seat, valve body, valve top and valve rod, be provided with valve seat for medium it is current,
The medium of the cavity of receiving valve rod, valve body and valve seat connects into threaded one end, and valve top is arranged in valve body, is provided with valve seat
Adjusting nut, valve rod is arranged in valve seat and withstood on by valve rod one end on valve top, other end passes through described adjusting nut,
Spring base and compression spring are arranged with valve rod, compression spring is between spring base and adjusting nut；Described valve body
Outer end is provided with outer shaft ring portion, collar nut, the inner side of collar nut is arranged with valve body to being connected to connector on connector
Interior collar part is provided with, attaching nut is connected with valve body screw thread and coordinated by interior collar part and the outer shaft ring portion of connector will even
Joint is fixed on valve end；Seal washer is additionally provided between valve body and connector, and the sealing ring of side is connected with valve body
End face be provided with the first bulge-structure, the end face of the connector of side is connected with seal washer, and to be provided with second raised
Structure.
Preferably, the first described bulge-structure and/or the second bulge-structure use the annular projection set along end face.
Preferably, the first described bulge-structure and/or the second bulge-structure use cross section convex for the ring-type of triangle
Rise.
By adopting the above-described technical solution, the beneficial effects of the utility model are：
Cryogenic high pressure safety valve of the present utility model, by between valve body and connector, by seal washer and connector
End face is provided with bulge-structure, can ensure the sealing reliability in the case of hyperpressure, and sealing life is longer.
Brief description of the drawings
Fig. 1 is the full sectional view of cryogenic high pressure safety valve of the present utility model.
Fig. 2 is Fig. 1 A portions enlarged drawing.
Reference：1- valve seats, 2- valve bodies, 3- valve rods, 4- valves top, 5- spring bases, 6- adjusting nuts, 7- compression springs,
8- seal washers, 9- collar nuts, 10- connectors, the bulge-structures of 11- first, the bulge-structures of 12- second.
Embodiment
Reference picture 1, Fig. 2, a kind of cryogenic high pressure safety valve of the present utility model, including valve seat 1, valve body 2, valve top 4 and valve
Bar 3, be provided with valve seat 1 for medium it is current, accommodate the cavity of valve rod 3, the medium of valve body 2 and valve seat 1 enters threaded one end
Connection, valve top 4 are arranged in valve body 2, adjusting nut 6 are provided with valve seat 1, valve rod 3 is arranged in valve seat 1 and by valve rod 3
One end is withstood on valve top 4, other end passes through described adjusting nut 6, and spring base 5 and compression spring are arranged with valve rod 3
7, compression spring 7 is between spring base 5 and adjusting nut 6.This valve provides pressure by compression spring 7, and valve rod 3 is withstood on
On valve top 4, then coordinated by valve top 4 and valve body 2, the passage of circulation medium sealed, when pressure exceedes certain value, can gram
The pressure of compression spring 7 is taken, and the top of valve top 4 is opened, so as to realize pressure release.
For this valve when installing and using, the outer end of valve body 2 is provided with outer collar to being connected to connector 10 on connector 10
Portion, collar nut 9 is arranged with valve body 2, the inner side of collar nut 9 is provided with interior collar part, and attaching nut connects with the screw thread of valve body 2
Connect and coordinated by interior collar part and the outer shaft ring portion of connector 10 and connector 10 is fixed on the end of valve body 2；Valve body 2 is with being connected
Seal washer 8 is additionally provided between first 10, and the end face for being connected with valve body 2 sealing ring of side is provided with the first bulge-structure
11, the end face that the connector 10 of side is connected with seal washer 8 is provided with the second bulge-structure 12.Pass through connector 10
The fluid media (medium) of entrance, enter in valve body 2, and realized and sealed by seal washer 8 between connector 10 and valve body 2, pass through
Bulge-structure is provided with the end face of the end face of seal washer 8 and connector 10, passes through the bulge-structure of the end face of connector 10
Contacted with seal washer 8, ensure the sealing reliability between connector 10 and seal washer 8；Between seal washer 8 and valve body 2
Sealing reliability between seal washer 8 and valve body 2 is ensured by the bulge-structure on seal washer 8.
Preferred embodiment of the present utility model, the first bulge-structure 11 and/or the second bulge-structure 12 are used along end face
The annular projection of setting；Or one of bulge-structure uses annular projection.
Further prioritization scheme of the present utility model, used in described the first bulge-structure 11 and the second bulge-structure 12
Cross section is the annular projection of triangle；Or one of bulge-structure uses annular projection of the cross section for triangle.
Claims (3)
1. a kind of cryogenic high pressure safety valve, including valve seat (1), valve body (2), valve top (4) and valve rod (3), valve seat are provided with (1)
Passed through for medium, the cavity of receiving valve rod (3), valve body (2) is connected with the medium of valve seat (1) into threaded one end, valve top (4)
It is arranged in valve body (2), adjusting nut (6) is provided with valve seat (1), valve rod (3) is arranged in valve seat (1) and passes through valve rod
(3) one end is withstood on valve top (4), other end passes through described adjusting nut (6), be arranged with valve rod (3) spring base (5) with
And compression spring (7), compression spring (7) are located between spring base (5) and adjusting nut (6)；Characterized in that, described valve body
(2) outer end is provided with outer shaft ring portion, valve body is arranged with joint spiral shell on (2) to being connected to connector (10) on connector (10)
Female (9), interior collar part are provided with the inside of collar nut (9), attaching nut is threadedly coupled with valve body (2) and by interior collar part
Coordinate with the outer shaft ring portion of connector (10) and connector (10) is fixed on valve body (2) end；Valve body (2) and connector (10) it
Between be additionally provided with seal washer (8), and the end face for being connected with valve body (2) seal washer (8) of side is provided with the first raised knot
Structure (11), the end face that the connector (10) of side is connected with seal washer (8) are provided with the second bulge-structure (12).
2. cryogenic high pressure safety valve according to claim 1, it is characterised in that described the first bulge-structure (11) and/
Or second bulge-structure (12) using along end face set annular projection.
3. cryogenic high pressure safety valve according to claim 2, it is characterised in that described the first bulge-structure (11) and/
Or second bulge-structure (12) use annular projection of the cross section for triangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720328896.5U CN206929393U (en) | 2017-03-30 | 2017-03-30 | A kind of cryogenic high pressure safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720328896.5U CN206929393U (en) | 2017-03-30 | 2017-03-30 | A kind of cryogenic high pressure safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206929393U true CN206929393U (en) | 2018-01-26 |
Family
ID=61349833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720328896.5U Expired - Fee Related CN206929393U (en) | 2017-03-30 | 2017-03-30 | A kind of cryogenic high pressure safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206929393U (en) |
-
2017
- 2017-03-30 CN CN201720328896.5U patent/CN206929393U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |