CN201802934U - Safety valve for low temperature liquid - Google Patents
Safety valve for low temperature liquid Download PDFInfo
- Publication number
- CN201802934U CN201802934U CN201020288907XU CN201020288907U CN201802934U CN 201802934 U CN201802934 U CN 201802934U CN 201020288907X U CN201020288907X U CN 201020288907XU CN 201020288907 U CN201020288907 U CN 201020288907U CN 201802934 U CN201802934 U CN 201802934U
- Authority
- CN
- China
- Prior art keywords
- valve
- spring
- safety valve
- flap
- valve body
- 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 - Lifetime
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Abstract
The utility model relates to a safety valve for low temperature liquids, which comprises a valve body, a valve cover, a valve flap, a spring, a spring seat and a buffer tube. The valve body is provided with a valve hole and a liquid inlet. The valve flap cooperates with the valve hole. The valve cover is fixedly equipped on the valve body. The buffer tube is screwed on the valve body. The inside space of the valve cover and the inside space of the valve body form a valve chamber where the valve flap is equipped in a sliding connection way. The spring seat is equipped inside the valve cover. The spring is equipped on the spring seat. One end of the spring abuts against the valve flap. The buffer tube which is connected on the liquid inlet has a length ranging from 20cm to 30cm. The safety valve in the utility model thoroughly solves the problems of continuous liquid leakage and incapability of automatic resetting after the prior safety valve for low temperature liquids is operated. Furthermore, the safety valve is simple in structure and relatively low in manufacturing cost.
Description
Technical field
The utility model relates to a kind of valve, especially a kind of cryogenic liquide safety valve.
Background technique
At present, install and save the consideration of aspects such as cost for convenience, the valve body height of the safety valve of valve manufacturer made is generally not high, and the metal tube that does not connect metal tube or connection on its liquid entering hole very short (having only 5cm at most), the medium that enters in the safe valve pocket carries out heat exchange with regard to being difficult to the external world.When the cryogenic liquide pressure that is connected with safety valve occurs unusual and reaches the Set pressure of safety valve, safety valve is opened, body cavity is full of cryogenic liquide, cause the spring of contraction state to freeze, when the pressure of cryogenic liquide is released into safety valve setting pressure when following, spring causes safety valve to reset because of freezing effect can not freely extend, and continues leakage.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of cryogenic liquide safety valve of the lasting leakage in cryogenic liquide safety valve action back with problems such as can not automatically reseting that solved is provided.
The technological scheme that provides according to the utility model, described cryogenic liquide safety valve comprises valve body, valve gap, flap, spring and spring seat, and valve body has valve opening and liquid entering hole, flap cooperates with valve opening, valve gap is fixedly installed on the valve body, and the inner space of valve gap and the inner space of valve body are combined to form valve pocket, slidely connect described flap in the valve pocket, be provided with spring seat in the valve gap, spring seat is provided with spring, and an end and the flap of described spring offset, and are connected with separator tube on the described liquid entering hole.
The length of described separator tube is 20～30cm.
Described separator tube is a metal tube.Described separator tube is Stainless Steel Tube or copper pipe.
The utility model has not only thoroughly solved cryogenic liquide safety valve action back and has continued the problem of leakage, and thoroughly solve after the safety valve action can not automatically reset problem, and simple in structure, and manufacture cost is lower.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As shown in the figure: this cryogenic liquide safety valve, comprise valve body 1, valve gap 2, flap 3, spring 4, spring seat 5 and separator tube 6, valve body 1 has valve opening 7 and liquid entering hole, flap 3 cooperates with valve opening 7, valve gap 2 is fixedly installed on the valve body 1, separator tube 6 is screwed onto the liquid entering hole of valve body 1, the inner space of the inner space of valve gap 2 and valve body 1 is combined to form valve pocket, slidely connect described flap 3 in the valve pocket, be provided with spring seat 5 in the valve gap 2, spring seat 5 is provided with spring 4, and an end and the flap 3 of described spring 4 offset.
Described separator tube 6 length are 20～30cm, and the length of separator tube 6 is preferably about 26cm.When cryogenic liquide entered valve pocket unlatching safety valve, cryogenic liquide absorbed heats by described separator tube 6 and gasifies.
Described separator tube 6 is a metal tube, and it can be Stainless Steel Tube or copper pipe etc.
The utility model is by connecting the heat exchange area that separator tube 6 has increased original safety valve on liquid entering hole, by test find to increase on the safety valve connect separator tube 6 after, during the safety valve action, the heat that the continuous tube wall that absorbs separator tube 6 transmitted when cryogenic liquide sharply rose in valve body 1 inner chamber, progressively make its gasification, when pressure spring 4, become gaseous state fully, can not freeze spring 4, be released into safety valve setting pressure when following when pressure so, spring 4 just can freely extend, and makes safety valve in time, close automatically.
Claims (5)
1. cryogenic liquide safety valve, comprise valve body (1), valve gap (2), flap (3), spring (4) and spring seat (5), valve body (1) has valve opening (7) and liquid entering hole, flap (3) cooperates with valve opening (7), valve gap (2) is fixedly installed on the valve body (1), the inner space of the inner space of valve gap (2) and valve body (1) is combined to form valve pocket, slidely connect described flap (3) in the valve pocket, be provided with spring seat (5) in the valve gap (2), spring seat (5) is provided with spring (4), one end of described spring (4) and flap (3) offset, and it is characterized in that: be connected with separator tube (6) on the described liquid entering hole.
2. cryogenic liquide safety valve as claimed in claim 1 is characterized in that: the length of described separator tube (6) is 20～30cm.
3. cryogenic liquide safety valve as claimed in claim 1 is characterized in that: described separator tube (6) is a metal tube.
4. cryogenic liquide safety valve as claimed in claim 3 is characterized in that: described separator tube (6) is Stainless Steel Tube or copper pipe.
5. cryogenic liquide safety valve as claimed in claim 1 is characterized in that: described separator tube (6) is screwed onto on the liquid entering hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020288907XU CN201802934U (en) | 2010-08-05 | 2010-08-05 | Safety valve for low temperature liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020288907XU CN201802934U (en) | 2010-08-05 | 2010-08-05 | Safety valve for low temperature liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201802934U true CN201802934U (en) | 2011-04-20 |
Family
ID=43872433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020288907XU Expired - Lifetime CN201802934U (en) | 2010-08-05 | 2010-08-05 | Safety valve for low temperature liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201802934U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994257A (en) * | 2014-04-21 | 2014-08-20 | 浙江铭仕阀业有限公司 | Ultralow temperature safety valve |
-
2010
- 2010-08-05 CN CN201020288907XU patent/CN201802934U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994257A (en) * | 2014-04-21 | 2014-08-20 | 浙江铭仕阀业有限公司 | Ultralow temperature safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200608 Address after: 214028 No.9 and 16, Xinhua Road, Xinwu District, Wuxi City, Jiangsu Province Patentee after: WUXI SUNTECH POWER Co.,Ltd. Address before: 214028 No. 17-6 Changjiang South Road, New District, Jiangsu, Wuxi Co-patentee before: LUOYANG SUNTECH POWER Co.,Ltd. Patentee before: WUXI SUNTECH POWER Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110420 |
|
| CX01 | Expiry of patent term |