CN203322311U - Cryogenic stop valve - Google Patents
Cryogenic stop valve Download PDFInfo
- Publication number
- CN203322311U CN203322311U CN2013202977375U CN201320297737U CN203322311U CN 203322311 U CN203322311 U CN 203322311U CN 2013202977375 U CN2013202977375 U CN 2013202977375U CN 201320297737 U CN201320297737 U CN 201320297737U CN 203322311 U CN203322311 U CN 203322311U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- ladder
- sliding bearing
- stop valve
- 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
Images
Landscapes
- Lift Valve (AREA)
Abstract
The utility model provides a cryogenic stop valve which comprises a step valve rod. A step face of the step valve rod can form a sealing pair with a valve cover, a sliding bearing and a quarto ring are arranged between the step valve rod and the valve cover, and the sliding bearing is axially located by the quarto ring. The cryogenic stop valve has the advantages that by means of the step valve rod, the step face and the valve cover are sealed after the valve is opened, a gap is reversed on the outer side of the valve rod under a sealing face to form a runner in a rising process of cryogenic media, and explosion is effectively prevented. Furthermore, the sliding bearing and the quarto ring which are arranged between the step valve rod and the valve cover are axially guided and radially located to prevent the valve rod from moving radially.
Description
Affiliated technical field
The utility model relates to a kind of stop valve, the deep cooling stop valve that particularly LNG project and other deep cooling operating modes are used.
Background technique
Existing stop valve generally arranges upper seal support in valve gap lower end and valve rod cooperation place, after valve opening, and valve clack cover and upper seal support sealing, if this structure is for Subzero valve, after valve opening, cryogenic media rises and gasifies, volumetric expansion, easily blast, risk factor is high.
Summary of the invention
For overcoming the above-mentioned defect of existing deep cooling stop valve, the utility model provides a kind of deep cooling stop valve, ladder surface and valve gap by the ladder valve rod are sealed, make the sealing surface valve rod outside down leave gap, can form runner in the process risen at cryogenic media, effectively the generation of prevent exploding.
The technological scheme that the utility model solves its technical problem employing is a kind of deep cooling stop valve, described deep cooling stop valve comprises a ladder valve rod, the ladder surface of ladder valve rod can form sealing pair with valve gap, sliding bearing and four is set between ladder valve rod and valve gap and opens annulus, sliding bearing is opened annulus by four and is carried out axially locating.
The beneficial effects of the utility model are that valve rod is the ladder valve rod, and after valve opening, ladder surface and valve bonnet seal, make the sealing surface valve rod outside down leave gap, can form runner in the process risen at cryogenic media, effectively the generation of prevent exploding; And the sliding bearing arranged between ladder valve rod and valve gap and four opens annulus the ladder valve rod is carried out to axially directed and radial location, prevent the radial-play of valve rod.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is embodiment's structural representation
In figure: 1. ladder valve rod; 2. ladder surface; 3. valve gap; 4. sliding bearing; 5. four open annulus.
Embodiment
As shown in Figure 1, a kind of deep cooling stop valve, described deep cooling stop valve comprises a ladder valve rod 1, after valve opening, the ladder surface 2 of ladder valve rod 1 and valve gap 3 sealings, arrange sliding bearing 4 and four between ladder valve rod 1 and valve gap 3 and open annulus 5, axially locating is carried out by valve gap in sliding bearing 4 upper ends, lower end is opened annulus 5 by four and is carried out axially locating, and it is interference fit that sliding bearing 4 and four is opened between annulus 5 and valve gap 3, and leaves gap between ladder valve rod 1.
Claims (1)
1. a deep cooling stop valve, it is characterized in that: described deep cooling stop valve comprises a ladder valve rod, the ladder surface of described ladder valve rod can form sealing pair with valve gap, between described ladder valve rod and valve gap, sliding bearing and four is set and opens annulus, described sliding bearing is opened annulus by four and is carried out axially locating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202977375U CN203322311U (en) | 2013-05-28 | 2013-05-28 | Cryogenic stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202977375U CN203322311U (en) | 2013-05-28 | 2013-05-28 | Cryogenic stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203322311U true CN203322311U (en) | 2013-12-04 |
Family
ID=49661663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202977375U Expired - Fee Related CN203322311U (en) | 2013-05-28 | 2013-05-28 | Cryogenic stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203322311U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443767A (en) * | 2014-08-06 | 2016-03-30 | 湖北泰和石化设备有限公司 | Deep refrigeration regulating valve with piston pressure self-sealing and positioning functions |
| RU2689492C1 (en) * | 2015-11-10 | 2019-05-28 | Л'Эр Ликид, Сосьете Аноним Пур Л'Этюд Э Л'Эксплуатасьон Де Проседе Жорж Клод | Valve adaptation with press fit for valve with upper connector in cryogenic equipment |
-
2013
- 2013-05-28 CN CN2013202977375U patent/CN203322311U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443767A (en) * | 2014-08-06 | 2016-03-30 | 湖北泰和石化设备有限公司 | Deep refrigeration regulating valve with piston pressure self-sealing and positioning functions |
| CN105443767B (en) * | 2014-08-06 | 2018-10-09 | 湖北泰和石化设备有限公司 | A kind of deep cooling regulating valve with piston pressure self sealss and positioning |
| RU2689492C1 (en) * | 2015-11-10 | 2019-05-28 | Л'Эр Ликид, Сосьете Аноним Пур Л'Этюд Э Л'Эксплуатасьон Де Проседе Жорж Клод | Valve adaptation with press fit for valve with upper connector in cryogenic equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202418669U (en) | Flat valve of high sealing property | |
| CN203322311U (en) | Cryogenic stop valve | |
| CN204611049U (en) | The sealing configuration of bypass Decompression valves | |
| CN104565363A (en) | Combined type sealing device for low-temperature engine oxidizing agent | |
| CN202082393U (en) | High-airtightness seal ring | |
| CN203836266U (en) | Upper-mounted self-sealing ball valve | |
| CN103115033A (en) | Split-type deep sea hydraulic valve box | |
| CN203548966U (en) | Sand-preventing fracture gate valve | |
| CN202418879U (en) | Ultrahigh-pressure valve sealing device | |
| CN104265933A (en) | Totally-closed anti-ageing corrosion-resistant and long-life ball valve | |
| CN201916519U (en) | Protective cover structure of flat plate gate valve used under bad medium condition | |
| CN203374867U (en) | Ultra-low temperature ball valve | |
| CN203628011U (en) | Out-leakage-preventing self-sealing valve | |
| CN203796609U (en) | Sealing component for pump | |
| CN102562050B (en) | Reduce the method for intelligent water detector switch plunger pressure and intelligent water detector mechanical switch | |
| CN103244699B (en) | Ultra-high pressure high flow topping up or pouring valve | |
| CN201902188U (en) | Integral type pumping well head device | |
| CN201474921U (en) | Packing seal structure of compressor | |
| CN204459137U (en) | A kind of cryogenic engine oxidant pump sealer with assembled | |
| CN203614771U (en) | Soft seal eccentric butterfly valve | |
| CN104747743A (en) | Low and medium-pressure pneumatic balanced stop valve | |
| CN202418672U (en) | Double-sealed flat plate valve | |
| CN204175970U (en) | Stop valve | |
| CN203926876U (en) | Ceramic plug valve | |
| CN203948694U (en) | A kind of fixed metal hard-sealing ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 |