CN106704665A - High-temperature high-pressure valve - Google Patents
High-temperature high-pressure valve Download PDFInfo
- Publication number
- CN106704665A CN106704665A CN201510436335.2A CN201510436335A CN106704665A CN 106704665 A CN106704665 A CN 106704665A CN 201510436335 A CN201510436335 A CN 201510436335A CN 106704665 A CN106704665 A CN 106704665A
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- CN
- China
- Prior art keywords
- floating
- sealing ring
- bonnet
- temperature
- pressure 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.)
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Abstract
The invention discloses a high-temperature high-pressure valve which guarantees sealing performance at high temperature and high pressure and is long in service life. The high-temperature high-pressure valve comprises a valve body and a floating valve cover. The floating valve cover is provided with a threaded hole, and a pre-tightening bolt is arranged in the threaded hole. A sealing ring is arranged between the valve body and the floating valve cover and is a wedge-shaped sealing ring. A backing ring is arranged above the wedge-shaped sealing ring, and a pendant collet is arranged above the backing ring. By means of the technical scheme, sealing is reliable, and the wedge-shaped sealing ring can be used many times; and under the condition of temperature and pressure fluctuation, the sealing performance is still good, and the higher the pressure is, the better the sealing performance is.
Description
Technical field
The invention belongs to valving field, more particularly to high-temperature high pressure valve.
Background technology
With economic fast development, requirement of the petrochemical industry to valve high temperature high voltage resistant is higher, in traditional high-temperature high pressure valve, middle flange is mostly using the connection of bolt type flange, but this structure easily forms creep under plateau, cause leakage, and be difficult in adapt to the acute variation of temperature and pressure under hot environment.
The content of the invention
In order to solve the above problems, the invention provides the high-temperature high pressure valve for ensureing sealing property and long service life under a kind of HTHP.
According to an aspect of the present invention, there is provided a kind of high-temperature high pressure valve, including valve body and floating bonnet, the float trap is covered with screwed hole, pretension bolt is provided with the screwed hole, sealing ring is provided between the valve body and floating bonnet, the sealing ring is wedge shape sealing ring.
In some embodiments, the wedge shape sealing ring top is provided with gasket ring.
In some embodiments, the gasket ring top is provided with pendant collet.
In some embodiments, the float trap is covered and is provided with two screwed holes in left and right, and pretension bolt is equipped with two screwed holes.
In some embodiments, it is provided with supporting plate between the pretension bolt and floating bonnet.
In some embodiments, the contact sealing surface position built-up welding between the valve body, floating bonnet and wedge shape sealing ring has hard alloy.
Flange seal does not use bolt fastening means in the valve of present invention design, and by the way of internal pressure compression, a wedge shape sealing ring combination sealing is used between valve body and floating bonnet, the excellent middle flange sealing structure of high temperature and high pressure condition environment, sealing property is adapted to.Its advantage is：Using technical scheme, sealed reliable, wedge shape sealing ring can be used for multiple times；In the case where temperature and pressure fluctuates, sealing property is still good, and pressure more high sealing performance is better.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
In figure：1- valve bodies, 2- floating bonnets, 3- wedge shape sealing rings, 4- gasket rings, 5- pendant collets, 6- supporting plates, 7- pretension bolts.
Specific embodiment
1 the present invention is further illustrated below in conjunction with the accompanying drawings.Accompanying drawing 1 schematically shows a kind of high-temperature high pressure valve of the invention, including valve body 1 and floating bonnet 2, the floating bonnet 2 is provided with screwed hole, and pretension bolt 7 is provided with the screwed hole, sealing ring is provided between the valve body 1 and floating bonnet 2, the sealing ring is wedge shape sealing ring 3.
Preferably, the top of the wedge shape sealing ring 3 is provided with gasket ring 4.
Preferably, the top of the gasket ring 4 is provided with pendant collet 5.
Preferably, the floating bonnet 2 is provided with two screwed holes in left and right, and pretension bolt 7 is equipped with two screwed holes.
Preferably, supporting plate 6 is provided between the pretension bolt 7 and floating bonnet 2.
Preferably, the contact sealing surface position built-up welding between the valve body 1, floating bonnet 2 and wedge shape sealing ring 3 has hard alloy.
With reference to accompanying drawing 1, pretension bolt 7 is first tightened during installation, then floating bonnet 2 rises, make to produce a sealing force for pretension between floating bonnet 2 and wedge shape sealing ring 3, wedge shape sealing ring 3 and valve body 1.When pressure medium is acted on, pressure medium promotes the motion upwards of floating bonnet 2, pretension bolt 7 starts off-load, now the seal pressure between floating bonnet 2 and wedge shape sealing ring 3, valve body 1 and wedge shape sealing ring 3 is provided by pressure medium, with the increase of pressure, seal pressure increases, it is ensured that good sealing property.Contact sealing surface position pile-up welding hard alloy between valve body 1, floating bonnet 2 and wedge shape sealing ring 3, reaches hard to hard sealing.
Above-described is only some embodiments of the present invention, it is noted that for the person of ordinary skill of the art, on the premise of creation design of the invention is not departed from, can also make other deformations and improve, and these belong to protection scope of the present invention.
Claims (6)
1. a kind of high-temperature high pressure valve, including valve body（1）With floating bonnet（2）, the floating bonnet（2）Screwed hole is provided with, pretension bolt is provided with the screwed hole（7）, it is characterised in that the valve body（1）With floating bonnet（2）Between be provided with sealing ring, the sealing ring is wedge shape sealing ring（3）.
2. a kind of high-temperature high pressure valve as claimed in claim 1, it is characterised in that the wedge shape sealing ring（3）Top is provided with gasket ring（4）.
3. a kind of high-temperature high pressure valve as claimed in claim 2, it is characterised in that the gasket ring（4）Top is provided with pendant collet（5）.
4. a kind of high-temperature high pressure valve as claimed in claim 1, it is characterised in that the floating bonnet（2）Two screwed holes in left and right are provided with, pretension bolt is equipped with two screwed holes（7）.
5. a kind of high-temperature high pressure valve as claimed in claim 1, it is characterised in that the pretension bolt（7）With floating bonnet（2）Between be provided with supporting plate（6）.
6. a kind of high-temperature high pressure valve as claimed in claim 1, it is characterised in that the valve body（1）, floating bonnet（2）And wedge shape sealing ring（3）Between the position built-up welding of contact sealing surface have hard alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510436335.2A CN106704665A (en) | 2015-07-23 | 2015-07-23 | High-temperature high-pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510436335.2A CN106704665A (en) | 2015-07-23 | 2015-07-23 | High-temperature high-pressure valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106704665A true CN106704665A (en) | 2017-05-24 |
Family
ID=58894607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510436335.2A Pending CN106704665A (en) | 2015-07-23 | 2015-07-23 | High-temperature high-pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704665A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021226118A1 (en) * | 2020-05-08 | 2021-11-11 | Zahroof Valves Inc. | System for retaining a valve assembly in a cavity formed in a cylinder body of a compressor and method of use thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201589005U (en) * | 2009-09-30 | 2010-09-22 | 河南开封高压阀门有限公司 | Valve with reinforced-type self-sealing structure |
| CN202302034U (en) * | 2011-10-27 | 2012-07-04 | 高东阀门有限公司 | Internal-pressure self-sealing valve structure |
| CN202646749U (en) * | 2012-07-09 | 2013-01-02 | 浙江中正阀门有限公司 | High-temperature high-pressure large-diameter overall forging wedged gate valve |
| CN202790608U (en) * | 2012-09-08 | 2013-03-13 | 环球阀门集团有限公司 | High-temperature high-pressure flat gate valve |
| CN203384474U (en) * | 2013-07-24 | 2014-01-08 | 上海亚核阀业成套有限公司 | Self-fastening-type valve structure |
-
2015
- 2015-07-23 CN CN201510436335.2A patent/CN106704665A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201589005U (en) * | 2009-09-30 | 2010-09-22 | 河南开封高压阀门有限公司 | Valve with reinforced-type self-sealing structure |
| CN202302034U (en) * | 2011-10-27 | 2012-07-04 | 高东阀门有限公司 | Internal-pressure self-sealing valve structure |
| CN202646749U (en) * | 2012-07-09 | 2013-01-02 | 浙江中正阀门有限公司 | High-temperature high-pressure large-diameter overall forging wedged gate valve |
| CN202790608U (en) * | 2012-09-08 | 2013-03-13 | 环球阀门集团有限公司 | High-temperature high-pressure flat gate valve |
| CN203384474U (en) * | 2013-07-24 | 2014-01-08 | 上海亚核阀业成套有限公司 | Self-fastening-type valve structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021226118A1 (en) * | 2020-05-08 | 2021-11-11 | Zahroof Valves Inc. | System for retaining a valve assembly in a cavity formed in a cylinder body of a compressor and method of use thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 215000 Ganquan West Road, Wujiang, Jiangsu, Suzhou Applicant after: Davy valve casting (Suzhou) Limited by Share Ltd Address before: 215000 Ganquan West Road, Wujiang, Jiangsu, Suzhou Applicant before: Dewei (Suzhou) Co., Ltd. valve casting |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170524 |