CN2434500Y - Anti-freeze-clog fixed pressure exhaust valve - Google Patents
Anti-freeze-clog fixed pressure exhaust valve Download PDFInfo
- Publication number
- CN2434500Y CN2434500Y CN 00243729 CN00243729U CN2434500Y CN 2434500 Y CN2434500 Y CN 2434500Y CN 00243729 CN00243729 CN 00243729 CN 00243729 U CN00243729 U CN 00243729U CN 2434500 Y CN2434500 Y CN 2434500Y
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- China
- Prior art keywords
- valve body
- pressure
- valve
- plug
- inlet hole
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- 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
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Abstract
The utility model relates to a freeze-clogging preventing fixed pressure exhaust valve for ground sleeve pipes in oil fields, which is composed of a pipe plug 3, a valve body 4, a compression spring 5, a needle valve 6, an air inlet hole 7, etc., wherein the end opening of a heat insulating sleeve 2 is provided with a pipe plug 1 of the heat insulating sleeve; the valve body 4 is arranged in the heat insulating sleeve 2; the pipe plug 3, the compression spring 5, the needle valve 6 and the air inlet hole 7 are arranged in the valve body 4. Pressure can be manually adjusted according to the production conditions of oil wells; sleeve pressure is controlled to decrease gas influence on pump efficiency, enhance the pump efficiency and increase oil well yield. The utility model is provided with a heating insulation device, which prevents the phenomenon that the exhaust valve is out of order from appearing because of freeze clogging and ensures the normal work of the exhaust valve. The utility model is provided with wearing parts, and has the advantages of simple maintenance and replacement and low maintenance cost.
Description
The utility model is a kind of antifreeze stifled valve discharging gas under certain pressure that is used for the oil field collar piping.
At present, the well head venting mode of Oilfield using has artificial level pressure or timing venting and level pressure means of deflation to control several modes of venting automatically, they are not provided with the transmission of heat system, level pressure means of deflation branch down-hole again helps and takes out one-way valve level pressure means of deflation and collar piping level pressure means of deflation, because the pumping well casing pressure is than higher (generally more than 8Mpa), artificial flashboard control casing pressure production difficulty occurs damaging than big and sleeve gate easily; And previously used collar piping level pressure means of deflation relatively is applicable to the kill-job of low cover, valve discharging gas under certain pressure often takes place when the aboveground application of high casing pressure freeze stifled, malfunctioning.And the down-hole helps and takes out one-way valve working life limited (being generally about half a year), and damages when changing and must operation could change.
The purpose of this utility model is to provide a kind of accurate control casing pressure, keeps reasonable submergence, reduces gas to be influenced pump efficiency, and prevents that bleed valve from freezing the antifreeze stifled valve discharging gas under certain pressure of stifled phenomenon.
The utility model is achieved in that by lagging plug 1, lagging 2, plug 3, valve body 4, pressure spring 5, needle value 6, inlet hole 7 to be formed, the port of lagging 2 has lagging plug 1, valve body 4 is arranged in the lagging 2, plug 3, pressure spring 5, needle value 6, inlet hole 7 are arranged in the valve body 4.
Plug 3 places the end of valve body 4.
Between plug 3 and the needle value 6 pressure spring 5 is arranged.
Advantage of the present utility model is: can manually adjust setting pressure according to the production actual state of oil well; By rational control casing pressure, reduce the influence of gas to pump efficiency, improve pump efficiency, increase oil well output; Heating and heat-insulating device is arranged, prevent to guarantee the working properly of bleed valve because of freezing the stifled generation that causes the malfunctioning phenomenon of bleed valve; Be provided with easily damaged parts and maintain and replace is simple, maintenance expenses is low.
Fig. 1 is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is described further:
The utility model is made up of lagging plug 1, lagging 2, plug 3, valve body 4, pressure spring 5, needle value 6, inlet hole 7, the port of lagging 2 has lagging plug 1, valve body 4 is arranged in the lagging 2, plug 3, pressure spring 5, needle value 6, inlet hole 7 are arranged in the valve body 4.
Plug 3 places the end of valve body 4.
Between plug 3 and the needle value 6 pressure spring 5 is arranged.
Make spring 5 be subjected to certain precompression by screwing plug 3 in advance, compress needle value 6, make it to close, when casing pressure to the active force of needle value 6 during greater than 5 pairs of needle value 6 active forces of spring, needle value 6 is opened, sleeve pipe gas is emitted.Discharging along with sleeve pipe gas, casing pressure descends gradually, when casing pressure to the active force of needle value 6 during less than the active force of 5 pairs of needle values 6 of pressure spring, needle value 6 is closed, sleeve pipe gas stops discharging, so just can regulate blow off pressure, realize the level pressure venting of casing pressure by the degree that screws of regulating plug.
Utilize the well fluid after the well site stove heats, enter bleed valve lagging 2, bleed valve is carried out heat tracing, provide gaseous diffusion required heat, reach antifreeze purpose by circulation.
Plug 3 left-hand threads are installed on the tail end of valve body 4, are used to compress pressure spring 5, to reach the purpose of constant pressure turn on needle value 6.
Valve body 4 is used for plug 3, pressure spring 5, needle value 6, inlet hole 7 are linked together, and is connected on the bleed valve lagging 2.
Claims (4)
1. antifreeze stifled valve discharging gas under certain pressure, form by lagging plug (1), lagging (2), plug (3), valve body (4), pressure spring (5), needle value (6), inlet hole (7), it is characterized in that: the port of lagging (2) has lagging plug (1), valve body (4) is arranged in the lagging (2), plug (3), pressure spring (5), needle value (6), inlet hole (7) are arranged in the valve body (4).
2. antifreeze stifled valve discharging gas under certain pressure according to claim 1 is characterized in that: plug (3) places the end of valve body (4).
3. antifreeze stifled valve discharging gas under certain pressure according to claim 1 is characterized in that: between plug (3) and the needle value (6) pressure spring (5) is arranged.
4. antifreeze stifled valve discharging gas under certain pressure according to claim 1 is characterized in that: inlet hole (7) places the top of valve body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00243729 CN2434500Y (en) | 2000-07-21 | 2000-07-21 | Anti-freeze-clog fixed pressure exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00243729 CN2434500Y (en) | 2000-07-21 | 2000-07-21 | Anti-freeze-clog fixed pressure exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2434500Y true CN2434500Y (en) | 2001-06-13 |
Family
ID=33603549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00243729 Expired - Fee Related CN2434500Y (en) | 2000-07-21 | 2000-07-21 | Anti-freeze-clog fixed pressure exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2434500Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592024A (en) * | 2009-07-15 | 2009-12-02 | 中国海洋石油总公司 | Degassing system for closed production space of oil well |
| CN102454370A (en) * | 2010-10-28 | 2012-05-16 | 大港油田集团有限责任公司 | Constant-pressure protection device of screw drilling tool |
| CN106483004A (en) * | 2015-08-26 | 2017-03-08 | 徕卡显微系统(上海)有限公司 | For the paraffin distributor of embedding machine with have its embedding machine |
-
2000
- 2000-07-21 CN CN 00243729 patent/CN2434500Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592024A (en) * | 2009-07-15 | 2009-12-02 | 中国海洋石油总公司 | Degassing system for closed production space of oil well |
| CN102454370A (en) * | 2010-10-28 | 2012-05-16 | 大港油田集团有限责任公司 | Constant-pressure protection device of screw drilling tool |
| CN106483004A (en) * | 2015-08-26 | 2017-03-08 | 徕卡显微系统(上海)有限公司 | For the paraffin distributor of embedding machine with have its embedding machine |
| CN106483004B (en) * | 2015-08-26 | 2021-07-16 | 徕卡显微系统(上海)有限公司 | Paraffin distribution device for embedding machine and embedding machine with paraffin distribution device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |