CN201125706Y - Antifreeze, anti-theft back pressure meter valve - Google Patents
Antifreeze, anti-theft back pressure meter valve Download PDFInfo
- Publication number
- CN201125706Y CN201125706Y CNU2007200241291U CN200720024129U CN201125706Y CN 201125706 Y CN201125706 Y CN 201125706Y CN U2007200241291 U CNU2007200241291 U CN U2007200241291U CN 200720024129 U CN200720024129 U CN 200720024129U CN 201125706 Y CN201125706 Y CN 201125706Y
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- CN
- China
- Prior art keywords
- valve
- spool
- back pressure
- valve core
- antifreeze
- 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
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Abstract
The utility model relates to a back-pressure gauge valve which is freeze proof and theft proof. The valve which is a half built-in type is arranged on the inside of oil return pipes of oil wells. All the valve core is immersed in running crude oil. The crude oil in valves and in pipes has the same temperature and keeps running. The exposed part of the valve core is connected with a back-pressure gauge. The valve body and the valve core are provided with conical surface seal. The upper part of the valve core is provided with a ring groove and an inverted T-shaped round circle to carry out liquid diversion. The lower part of the valve core is provided with a straight flute to carry out liquid diversion. The valve is provided with a lengthened valve core to open the valve using the lower part of the back-pressure gauge body. The utility model has a simple structure, convenient installation and use, a good theft proof function and a unique freeze proof function.
Description
Technical field
Utility model discloses a kind of oil field head valve, particularly a kind of antifreeze, antitheft back pressure table valve that is used for crude oil production process well head extraction PRESSURE DATA.
Background technology
In oilfield process, from the valve of well head extraction PRESSURE DATA, generally be in oil return pipe, to open a mouth, the short tube of the one one headband screw thread of burn-oning is installed a valve in the outer end of pipe then.When getting data, load onto pressure meter and open valve and get final product, more convenient.Thisly get oily mode, exist two weak points.The one, non-anti-theft, the stolen incident of crude oil occurs repeatedly, and quite a few is stolen from this valve.The oil field that has for antitheft, add an antitheft cover and pins on back pressure table valve, antitheft so cumbersome, effect is also undesirable.The 2nd, not antifreeze, because the crude oil at short tube and valve place in process of production, is to remain static, do not flow.After weather is reduced to a certain degree than chill temperature, just the crude oil in the pipe can be thick with fixed attention,, also may freeze if crude oil water containing is more, valve bursting by freezing when serious, when getting data, have only by heating make crude oil thinning or thaw after, could the extraction data.To extract the process of data longer for mode in this, relatively wastes time and energy, and get angry at well head, has certain danger.
Summary of the invention
The purpose of this utility model provides a kind of antifreeze, antitheft back pressure table valve, this valve is installed in the inside of well head oil return pipe, is partly built-in, and whole spool part is immersed in the mobile crude oil entirely, crude oil in the valve in crude oil and the pipe is same temperature, and is in flow regime.
The purpose of this utility model is achieved in that this valve mainly by thread, and valve body, spool, the ring-like space of insulation, adapter sleeve, spring and spring base are formed.Spool top adopts the annular groove and the T-shaped circular hole that falls that liquid is carried out water conservancy diversion, and straight trough water conservancy diversion liquid is then adopted in the spool bottom.Under the effect of spring, valve is a normally closed type, when the back pressure table is installed, moves down at the effect bottom spool of showing body, and spring is compressed.This moment, the liquid in the guide groove extracted data to cannelure to the circular hole of falling the T-shaped with pressure meter UNICOM and indicated pressure by the vertebra face, realized the purpose of extraction data, extracted when data to finish or need be when unloading the back pressure table, and spool moves automatically under the effect of spring and closes.
The utlity model has simple in structure, low cost of manufacture, characteristics easy for installation, simple to operate.In the use, do not have crude oil and exosmose, outer spray, the phenomenon of spattering outward takes place, and the feature of environmental protection is good.During operation, operating personnel's labour intensity is low, and is time saving and energy saving.
Description of drawings
Fig. 1 is the utility model structural representation.
1 be that thread, 2 is spring base for spring, 8 for spool, 7 for adapter sleeve, 5 and 6 for the ring-like space of insulation, 4 for valve body, 3 among the figure (1).
The specific embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing: this valve is installed in the inside of oil well oil return pipe, be partly built-in, whole spool part is immersed in the mobile crude oil entirely, its exposed parts is to be used for connecting with the back pressure table, this valve mainly by thread (1), valve body (2), be incubated ring-like space (3), adapter sleeve (4), spool (5,6), spring (7), spring base (8) and formed.Its valve body (2) and spool (5,6), the sealing of employing vertebra face, spool (5,6) top adopts the annular groove and the T-shaped circular hole that falls that liquid is carried out water conservancy diversion, and straight trough water conservancy diversion liquid is then adopted in spool (5,6) bottom.Under the effect of spring (7), valve is a normally closed type, when the back pressure table is installed, effect bottom spool at the table body moves down, and spring is compressed, this moment the liquid in the guide groove by the vertebra face to cannelure to the circular hole of falling the T-shaped and pressure meter UNICOM, and indicated pressure is extracted data, realization extraction data purpose.Extract when data and to finish when maybe needing to unload the back pressure table, spool moves automatically under the effect of spring and closes.Back pressure table and valve body adopt screwed connection, open valve for the ease of utilizing back pressure table body bottom, and this valve has adopted the lengthening spool.For strengthening anti-theft capability, spool adopts 1 to 2 millimeter aperture to be communicated with.
The utility model is applicable to various producing wells, has good antifreeze function and unique antifreeze function, and the vast north cold area of particularly suitable and China for cold district oil well extraction data provides convenience, has great popularizing value.
Claims (2)
1. antifreeze, antitheft back pressure table valve, by thread (1), valve body (2), be incubated ring-like space (3), adapter sleeve (4), spool (5,6), spring (7), spring base (8) and formed, it is characterized in that spool (5,6) the top employing annular groove and the T-shaped circular hole that falls, straight trough is adopted in the bottom, spool (5,6) is the lengthening spool, and spool (5,6) adopts 1 to 2 millimeter aperture to be communicated with.
2. antifreeze, antitheft back pressure table valve according to claim 1 is characterized in that inside that this valve is installed in oil return pipe is half built-in, exposed parts and back pressure Biao Lianlian, back pressure table and valve body (2) employing screwed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200241291U CN201125706Y (en) | 2007-06-27 | 2007-06-27 | Antifreeze, anti-theft back pressure meter valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200241291U CN201125706Y (en) | 2007-06-27 | 2007-06-27 | Antifreeze, anti-theft back pressure meter valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201125706Y true CN201125706Y (en) | 2008-10-01 |
Family
ID=39999177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200241291U Expired - Fee Related CN201125706Y (en) | 2007-06-27 | 2007-06-27 | Antifreeze, anti-theft back pressure meter valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201125706Y (en) |
-
2007
- 2007-06-27 CN CNU2007200241291U patent/CN201125706Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 |