CN2058947U - Magnetic leakage-proof oil pump - Google Patents
Magnetic leakage-proof oil pump Download PDFInfo
- Publication number
- CN2058947U CN2058947U CN 89219511 CN89219511U CN2058947U CN 2058947 U CN2058947 U CN 2058947U CN 89219511 CN89219511 CN 89219511 CN 89219511 U CN89219511 U CN 89219511U CN 2058947 U CN2058947 U CN 2058947U
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- CN
- China
- Prior art keywords
- pump
- magnetic
- plunger
- oil pump
- oil
- 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 utility model provides a magnetic leakage-proof oil pump used for pumping the oil from the underground of the oil field. The utility model is characterized in that a magnetic ring is enchased on a conventional oil pump, and the obstruction action of the gap moved liquid from the force of magnetic field is utilized, reducing the leakage between a pump plunger piston and a lining, increasing the coefficient of the pump capacity, and extending the service life of the oil pump.
Description
A kind of magnetic leakproof oil well pump that is used for down-hole, oil field oil pumping relates to the leak proof technology field of oil well pump.
The plunger of present conventional oil well pump and the gap leaking loss between the lining are one of principal elements that influences the oil well pump Coefficient of discharge.Because between pump plunger and the lining is Spielpassung, exist the surface friction drag the when gap is too small can to increase motion, cause accidents such as holddown, bar break; Excesssive gap then increases the pump wastage, does not also reach the purpose that improves the pump displacement coefficient.Therefore, in its structural design, material selection, processing technology and matching requirements, a lot of measures have been taked for the leakage that reduces between pump plunger and lining at present.As, on structural design, taked the method for gap classification; On material is selected, taked plunger surface chromium plating, to improve its surface hardness and wear-resisting property; On processing technology required, the roughness of surface of contact required Ra to be no more than 0.63～0.32 micron between plunger and lining, and garden degree, concentricity, garden tapering and surperficial straightness accuracy all require to reach in 0.01 millimeter; And, also stipulate out very high requirement at fit on, the size deviation of every joint lining must not surpass ± 0.01 millimeter or the like.Although having used these is all feasible measure of purpose with the leakproof, fail all the time more satisfactory ground, satisfactorily, solve the gap leaking loss problem that reduces between pump plunger and lining.
The purpose of this utility model just is to overcome the deficiencies in the prior art part, and a kind of magnetic force magnetic leakproof oil well pump designed to the inhibition of motion liquid in the gap that utilize is provided.
The purpose of this utility model can reach by following technical measures: promptly stud with magnet ring on conventional oil pump plunger piston ectosome (table).
The purpose of this utility model can also reach by following technical measures: magnet ring is made up of two above unit bearing shell shape magnetic patch, and magnetic patch is set in plunger ectosome (table) when going up, and is bonding and be fixed thereon with a kind of firm protection overcoat with binder.
Fig. 1 is a magnetic leakproof oil well pump structural representation.
Fig. 2 is an A-A cross-sectional view among Fig. 1.
To describe in further detail the utility model below in conjunction with accompanying drawing:
As shown in Figure 1, magnetic leakproof oil well pump be by pump barrel ［ 1 ］, lining ［ 2 ］, plunger ［ 3 ］, magnet ring ［ 4 ］, overcoat ［ 5 ］, go up travelling valve joint ［ 6 ］, on move about valve seat ［ 7 ］, on move about valve ball ［ 8 ］, go up travelling valve cover ［ 9 ］, down travelling valve joint ［ 10 ］, down move about valve seat ［ 11 ］, move about valve ball ［ 12 ］ and standing valve device (in the pump barrel bottom, slightly) waits composition down.
As shown in Figure 2, magnet ring is combined by bearing shell shape unit magnetic patch ［ 14 ］.
Wherein, magnet ring ［ 4 ］ is set in the ectosome (table) of plunger ［ 3 ］ and passes through overcoat ［ 5 ］ fixed thereon; Last travelling valve joint ［ 6 ］ is threaded with plunger ［ 3 ］ upper end, last travelling valve cover ［ 9 ］ is threaded with last travelling valve joint ［ 6 ］, and on the valve seat ［ 7 ］ that moves about place between travelling valve joint ［ 6 ］ and the last travelling valve cover ［ 9 ］, and be fixed on therebetween by the screw thread between them, on move about valve ball ［ 8 ］ place the travelling valve cover and on move about between the valve seat ［ 7 ］, and can be seated on the valve seat that moves about ［ 7 ］, following travelling valve joint ［ 10 ］ is threaded with the lower end and the pressure cap ［ 13 ］ of plunger ［ 3 ］ respectively, under the valve seat ［ 11 ］ that moves about place down between travelling valve joint ［ 10 ］ and the pressure cap ［ 13 ］, and be fixed on therebetween by pressure cap ［ 13 ］; Under the valve ball ［ 12 ］ that moves about place down between travelling valve joint ［ 10 ］ and the pressure cap ［ 13 ］, and can be seated at down on the valve seat that moves about ［ 11 ］.
The utility model compared with the prior art, can greatly reduce plunger and lining gap leaking loss amount, and then can effectively improve the discharge coefficient of oil well pump, and can reduce the disconnected accident of holddown (plunger) and bar, be pump detection period the service life that therefore also just can effectively prolong oil well pump.
Claims (3)
1, a kind of magnetic leakproof oil well pump that is used for the oil pumping of down-hole, oil field that is made of tubing pump is characterized in that: stud with magnet ring [4] on plunger [3] ectosome.
2, magnetic leakproof oil well pump as claimed in claim 1, it is characterized in that: magnet ring is made up of two above unit bearing shell shape magnetic patch ［ 14 ］.
3, magnetic leakproof oil well pump as claimed in claim 1, it is characterized in that: overcoat ［ 5 ］ is adhesively fixed magnet ring ［ 4 ］ on plunger ［ 3 ］.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89219511 CN2058947U (en) | 1989-11-08 | 1989-11-08 | Magnetic leakage-proof oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89219511 CN2058947U (en) | 1989-11-08 | 1989-11-08 | Magnetic leakage-proof oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2058947U true CN2058947U (en) | 1990-07-04 |
Family
ID=4874363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89219511 Withdrawn CN2058947U (en) | 1989-11-08 | 1989-11-08 | Magnetic leakage-proof oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2058947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022205773A1 (en) * | 2021-04-01 | 2022-10-06 | 中油智采(天津)科技有限公司 | Multi-phase regulation and control multi-well pumping unit |
-
1989
- 1989-11-08 CN CN 89219511 patent/CN2058947U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022205773A1 (en) * | 2021-04-01 | 2022-10-06 | 中油智采(天津)科技有限公司 | Multi-phase regulation and control multi-well pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |