CN202520542U - Novel sand scraping piston - Google Patents
Novel sand scraping piston Download PDFInfo
- Publication number
- CN202520542U CN202520542U CN2012201824698U CN201220182469U CN202520542U CN 202520542 U CN202520542 U CN 202520542U CN 2012201824698 U CN2012201824698 U CN 2012201824698U CN 201220182469 U CN201220182469 U CN 201220182469U CN 202520542 U CN202520542 U CN 202520542U
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- CN
- China
- Prior art keywords
- strike
- plunger
- ofing
- piston
- tube
- 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 novel sand scraping piston and belongs to the technical field of oil well pumps. The piston comprises a piston body, as well as an upper fuel discharge connector and a lower traveling valve seat connector, wherein sand scraping tubes are connected between the piston body and the upper fuel discharge connector as well as between the piston body and the lower traveling valve seat connector. The piston provided by the utility model has the advantages of simple structure, good anti-sand performance, greatly reduced sand amount in the gap between the pump tube and the piston, alleviated pump wear, and always maintained high pumping efficiency.
Description
Technical field
[0001] the utility model relates to a kind of oil well pump, especially a kind of novel plunger of strike-ofing.
Background technique
[0002] present, widely used oil well pump in the bar oil recovery is arranged, in oil pumping process; Though have only micro-gap between plunger and the pump barrel, along with a small amount of fluid runs off from the gap, the sand grains in the fluid just can be clamp-oned in the gap; Strengthen the wearing and tearing of pump barrel and plunger, greatly reduced the working life of pump barrel and plunger, also increased the gap leaking loss amount simultaneously; Reduce pumping efficiency, when serious even sand card accident takes place.
Summary of the invention
The technical assignment of the utility model is to the deficiency of above existing technology a kind of novel plunger of strike-ofing to be provided, and this plunger of strike-ofing has characteristics such as simple in structure, that sand control capability is strong.
The utility model solves the technological scheme that its technical problem adopted: the novel plunger of strike-ofing; Comprise plunger and go up delivery connection and lower travelling valve seated connection head, wherein between said plunger and last delivery connection and lower travelling valve seated connection head, be connected with the tube of strike-ofing respectively.
Be provided with some spiral chutes at the said tube outer surface of strike-ofing, be provided with the blade of strike-ofing in said spiral fluted one side, on said and plunger connecting end are strike-off tube, be provided with stress and concentrate relief holes, said stress concentrates relief holes to be positioned at the spiral fluted end.
The said tube of strike-ofing is processed by highly resilient material, and its somewhat larger in diameter is in the diameter of plunger, and purpose is to stop sand grains in the fluid to enter into the gap of plunger and pump barrel effectively.
Said spiral chute is circumferentially evenly to distribute, and adjacent two fluted shafts overlap 1/3 to projection, and purpose is both to have guaranteed the efficient of strike-ofing, the rigidity of the tube that also guaranteed to strike-off.
The Principle of Process of strike-ofing of the utility model is: in oil pumping process; The tube of strike-ofing closely cooperates with the pump barrel inwall; The blade of strike-ofing through on the tube of strike-ofing scrapes the fluid that contains sand grains in the spiral chute; Taken away by the stream of the oil in the plunger then, avoid sand grains to be squeezed in the gap of plunger and pump barrel, realize strike-ofing purpose.
The utility model has the advantages that: 1, simple in structure, sand control capability is good, and the gap medium sand amount of pump barrel and plunger significantly reduces, thereby the wearing and tearing that alleviated pump remain high oil extracting efficiency; 2, improve the working life of pump barrel and plunger; 3, prolong pump detection period.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with Figure of description the utility model is done following detailed description.
As shown in the figure, the novel plunger of strike-ofing comprises plunger 5 and goes up delivery connection 1 and lower travelling valve seated connection head 7, wherein between said plunger 5 and last delivery connection 1 and lower travelling valve seated connection head 7, is connected with the tube of strike-ofing respectively.
Be provided with some spiral chutes 2 at said tube 6 outer surfaces of strike-ofing, be provided with the blade 3 of strike-ofing in a side of said spiral chute 2, on said and plunger 5 connecting ends are strike-off tube 6, be provided with stress and concentrate relief holes 4, said stress concentrates relief holes 4 to be positioned at the end of spiral chute 2.
The said tube 6 of strike-ofing is processed by highly resilient material, and its somewhat larger in diameter is in the diameter of plunger, and purpose is to stop sand grains in the fluid to enter into the gap of plunger 5 and pump barrel effectively.
Said spiral chute 2 is circumferentially evenly to distribute, and the axis projection of adjacent two grooves overlaps 1/3, and purpose is both to have improved the efficient of strike-ofing, the rigidity of the tube that guaranteed again to strike-off.
Except that the said technical characteristics of specification, other is related domain professional workforce's known technology.
Claims (4)
1. the novel plunger of strike-ofing comprises plunger and goes up delivery connection and lower travelling valve seated connection head, it is characterized in that between said plunger and last delivery connection and lower travelling valve seated connection head, being connected with the tube of strike-ofing respectively.
2. the plunger of strike-ofing according to claim 1; It is characterized in that the said tube outer surface of strike-ofing is provided with some spiral chutes; Be provided with the blade of strike-ofing in said spiral fluted one side; On said and plunger connecting end are strike-off tube, be provided with stress and concentrate relief holes, said stress concentrates relief holes to be positioned at the spiral fluted end.
3. the plunger of strike-ofing according to claim 2, it is characterized in that said strike-off the tube process by highly resilient material, its somewhat larger in diameter is in the diameter of plunger.
4. the plunger of strike-ofing according to claim 2 is characterized in that said spiral chute for circumferentially evenly distributing, and adjacent two fluted shafts overlap 1/3 to projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201824698U CN202520542U (en) | 2012-04-26 | 2012-04-26 | Novel sand scraping piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201824698U CN202520542U (en) | 2012-04-26 | 2012-04-26 | Novel sand scraping piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520542U true CN202520542U (en) | 2012-11-07 |
Family
ID=47103494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201824698U Expired - Fee Related CN202520542U (en) | 2012-04-26 | 2012-04-26 | Novel sand scraping piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520542U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899279A (en) * | 2014-03-27 | 2014-07-02 | 西南石油大学 | Novel plunger applicable to sand-producing fluid-producing gas well plunger lifting techniques |
| CN106640472A (en) * | 2016-11-28 | 2017-05-10 | 攀枝花市九鼎智远知识产权运营有限公司 | Anti-blocking cross-shaped block plunger structure |
-
2012
- 2012-04-26 CN CN2012201824698U patent/CN202520542U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899279A (en) * | 2014-03-27 | 2014-07-02 | 西南石油大学 | Novel plunger applicable to sand-producing fluid-producing gas well plunger lifting techniques |
| CN103899279B (en) * | 2014-03-27 | 2016-03-23 | 西南石油大学 | Be suitable for shaking out the Novel plunger of production fluid gas well Plunger Lift technique |
| CN106640472A (en) * | 2016-11-28 | 2017-05-10 | 攀枝花市九鼎智远知识产权运营有限公司 | Anti-blocking cross-shaped block plunger structure |
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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: 20121107 Termination date: 20130426 |