CN202215470U - Check valve for improving pumping efficiency of oil pump - Google Patents
Check valve for improving pumping efficiency of oil pump Download PDFInfo
- Publication number
- CN202215470U CN202215470U CN2011202872637U CN201120287263U CN202215470U CN 202215470 U CN202215470 U CN 202215470U CN 2011202872637 U CN2011202872637 U CN 2011202872637U CN 201120287263 U CN201120287263 U CN 201120287263U CN 202215470 U CN202215470 U CN 202215470U
- Authority
- CN
- China
- Prior art keywords
- oil
- valve body
- seat
- ball
- check 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
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Abstract
The utility model discloses a check valve for improving pumping efficiency of an oil pump. The check valve consists of an oil inlet flange, a ball seat, a valve body, a sealing ball, a helical spring, a spring seat and an oil outlet flange. The check valve is characterized in that: the valve body is cylindrical, the left end of the valve body is provided with the oil inlet flange, and the right end of the valve body is provided with the oil outlet flange; the left end of the valve body is provided with the ball seat; the ball seat is in threaded connection with the valve body, and the inner end of the ball seat is provided with an annular conical surface; the claw-type spring seat is arranged inside the right end of the check valve; the sealing ball is arranged on the ball seat; and the helical spring is arranged between the sealing ball and the spring seat. The check valve can be arranged on the upper part or the lower part of a backpressure valve of a wellhead, can also be arranged on the tail part of an oil collecting pipeline inlet metering station, and can effectively prevent the reaction of the backpressure of an oil collecting pipeline on the oil pump, prevent leakage caused by the reaction and effectively improve the pumping efficiency of the oil pump.
Description
Technical field
The utility model relates to a kind of wellhead back pressure that prevents and acts on the one-way valve that causes the oil well pump leakage on the oil well pump sealing part, specifically a kind of one-way valve that improves the oil well pump pump efficiency.
Background technique
The oil field machinery oil well all recovers the oil through tubing pump; Because having arrived exploitation later stage well water, to contain sand higher all be to select triplex for use; The limit pressure difference of the low leakage of sealed precision is less; After one section oil pumping, sealing effect is just poorer, and other reason of oil-well self makes the oil well pump pump efficiency about 30-40% in addition; One of them reason that can not ignore be about 1Mpa oil-collecting in the line back pressure (generally do not establish travelling valve now) when oil well pump is descending and on the following travelling valve of the force action of the fluid column in the oil pipe at oil pump plunger piston and the annular sealing surface of plunger and pump barrel on; When oil well pump when being slightly larger than the work of oil well pump leakage limit pressure difference, the oil-collecting main line back pressure about 1Mpa has just become oil well pump leakage chief-criminal and has brought disaster upon hand, and oil well pump efficient is reduced.
Summary of the invention
The purpose of the utility model provides a kind of one-way valve that improves the oil well pump pump efficiency, overcomes the defective that above-mentioned prior art exists.
The technological scheme of the utility model realizes in the following manner:
The utility model is made up of oil-feed flange, ball seat, valve body, ball sealer, helical spring, spring seat and fuel-displaced flange; It is characterized in that valve body is made as cylindrical shape, left end is provided with the oil-feed flange, and right-hand member is provided with fuel-displaced flange; The left part is provided with the ball seat of the inner band shape conical surface that is threaded with valve body; Right-hand member inside is provided with pawl formula spring seat, and ball seat is provided with ball sealer, is provided with helical spring between ball sealer and the spring seat.
The utility model can be installed in the back pressure valve top or the bottom of well head; Also can be installed in the afterbody that gathering line advances metering station; Can prevent of the reaction of the back pressure of gathering line effectively, prevent the leakage that causes because of reaction force from can improve the oil well pump pump efficiency effectively oil well pump.
Description of drawings
The structural representation of Fig. 1-the utility model;
The fuel-displaced flange of 1-oil-feed flange 2-ball seat 3-valve body 4-ball sealer 5-helical spring 6-spring seat 7-among the figure.
Embodiment
For further disclosing technological scheme of the present invention, elaborate through embodiment below in conjunction with Fig. 1:
The utility model is made up of oil-feed flange 1, ball seat 2, valve body 3, ball sealer 4, helical spring 5, spring seat 6 and fuel-displaced flange 7; It is characterized in that valve body is made as cylindrical shape, left end is provided with the oil-feed flange, and right-hand member is provided with fuel-displaced flange; The left part is provided with the ball seat of the inner band shape conical surface that is threaded with valve body; Right-hand member inside is provided with pawl formula spring seat, and ball seat is provided with ball sealer, is provided with helical spring between ball sealer and the spring seat.
When using the utility model, can with its be installed in more than the wellhead back pressure gate or below, also can be installed in the end of gathering line, preferably install more than the wellhead back pressure gate, be convenient to one-way valve is changed and maintenance.When the oil well pump proper functioning; One-way valve is opened automatically during upstroke, and one-way valve is closed automatically during down stroke, can prevent the reaction of the back pressure of gathering line to oil well pump effectively; The oil well pump leakage that prevents to cause because of reaction force can improve the oil well pump pump efficiency effectively.
Claims (1)
1. an one-way valve that improves the oil well pump pump efficiency is made up of oil-feed flange, ball seat, valve body, ball sealer, helical spring, spring seat and fuel-displaced flange, it is characterized in that valve body is made as cylindrical shape; Left end is provided with the oil-feed flange; Right-hand member is provided with fuel-displaced flange, and the left part is provided with the ball seat of the inner band shape conical surface that is threaded with valve body, and right-hand member inside is provided with pawl formula spring seat; Ball seat is provided with ball sealer, is provided with helical spring between ball sealer and the spring seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202872637U CN202215470U (en) | 2011-08-09 | 2011-08-09 | Check valve for improving pumping efficiency of oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202872637U CN202215470U (en) | 2011-08-09 | 2011-08-09 | Check valve for improving pumping efficiency of oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215470U true CN202215470U (en) | 2012-05-09 |
Family
ID=46014728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202872637U Expired - Fee Related CN202215470U (en) | 2011-08-09 | 2011-08-09 | Check valve for improving pumping efficiency of oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202215470U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101891A (en) * | 2019-02-19 | 2020-05-05 | 大庆市富隆达石油工程机械设备有限公司 | Valve for oil well |
-
2011
- 2011-08-09 CN CN2011202872637U patent/CN202215470U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101891A (en) * | 2019-02-19 | 2020-05-05 | 大庆市富隆达石油工程机械设备有限公司 | Valve for oil well |
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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: 20120509 Termination date: 20120809 |