CN201723423U - Mechanical reversing reciprocating plunger pump of submersible motor - Google Patents
Mechanical reversing reciprocating plunger pump of submersible motor Download PDFInfo
- Publication number
- CN201723423U CN201723423U CN2010201149345U CN201020114934U CN201723423U CN 201723423 U CN201723423 U CN 201723423U CN 2010201149345 U CN2010201149345 U CN 2010201149345U CN 201020114934 U CN201020114934 U CN 201020114934U CN 201723423 U CN201723423 U CN 201723423U
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- CN
- China
- Prior art keywords
- plunger
- pump
- oil
- submersible motor
- plunger cavity
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Abstract
The utility model relates to a mechanical reversing reciprocating plunger pump of a submersible motor, mainly solving the problems of low efficiency and great stroke loss of the traditional reciprocating-type plunger pump. The mechanical reversing reciprocating plunger pump of the submersible motor is characterized in that a submersible motor (2) with a protector (3) is connected below a pump cylinder (1); a shaft of the submersible motor (2) of the pump cylinder (1) is connected with a screw rod (4); a nut on the screw rod (4) is connected with a transmission sleeve (6) which is connected with a bearing pedestal (7) connected with the screw rod (4) through an axial key; the transmission sleeve (6) is connected with the lower end of the plunger (9) through a transmission rod (8); the plunger (9) is arranged in a plunger cavity (10) of the pump cylinder (1); an oil inlet one-way valve (11) communicated with the sleeve and an oil exhaust one-way valve (12) communicated with an oil pipe cylinder are respectively arranged on the upper and lower ends of the plunger cavity (10); and a magnetic force sealing isolator (13) is arranged between the lower end of the plunger cavity (10) and the bearing pedestal (7). The pump has the characteristics of high efficiency and low stroke loss.
Description
Technical field:
The utility model relates to oil field oil recovery field lifting used pump, especially oil-submersible motor mechanical commutation reciprocating pump.
Background technique:
At present, in the oil recovery process of oil field, the oil extraction pump of field use roughly can be divided into two big class, i.e. rod pump and rodless pumps both at home and abroad.Rodless pump mainly contains the oil-submersible electric oil-submersible centrifugal pump, and rod pump mostly is reciprocating plunger pump.Existing reciprocating plunger pump pumps plunger and realizes oil pumping in pump barrel.Because rod string is longer, the sucker rod resiliently deformable that pump load and sucker rod deadweight cause is very big, and then causes the throw of pump loss bigger.And a reciprocal process of plunger pump generally has only upstroke fuel-displaced, so its pump efficiency is lower, is unfavorable for applying.
The model utility content:
In order to solve the existing problem that reciprocating plunger pump efficient is low and loss of plunger stroke is big, the utility model provides a kind of oil-submersible motor mechanical commutation reciprocating pump, and this oil-submersible motor mechanical commutation reciprocating pump has efficient height and the little characteristics of loss of plunger stroke.
The technical solution of the utility model is: this oil-submersible motor mechanical commutation reciprocating pump comprises oil-submersible motor and pump barrel; be connected with the oil-submersible motor of band protector under the pump barrel; the oil-submersible motor axle is connected with screw mandrel in the pump barrel; be connected with drive sleeve on the screw on the screw mandrel; drive sleeve is connected with the bearing support that is connected screw mandrel by axial bond; drive sleeve is connected with the plunger lower end by drive link; plunger places in the pump plunger and barrel chamber; the plunger cavity upper and lower end is respectively arranged with the in line check valve that communicates with sleeve pipe; the plunger cavity upper and lower end is respectively arranged with the oil extraction one-way valve that communicates with tubing string, is provided with the magnetic seal isolator between plunger cavity lower end and the bearing support.
The utlity model has following beneficial effect: this oil-submersible motor mechanical commutation reciprocating pump is owing to adopt leading screw and screw driving mechanism forward and reverse rotation of oil-submersible motor can be changed into a straight reciprocating motion and a decelerating effect of drive sleeve, drive link and plunger, thereby make the high speed oil-submersible motor directly drive the double-action to-and-fro motion, and then enter oil pipe and give rise to ground by the magnetic seal isolator.This shows that along with the constantly forward and reverse rotation of oil-submersible motor, plunger will constantly pass the power of coming by the magnetic seal isolator and pump, crude oil will give rise to ground continuously.In the utility model, the driving force of lead-screw drive mechanism in that to pass to plunger by magnetic seal reciprocating, thereby improved transmission efficiency, reduced loss of plunger stroke, can realize efficient oil recovery.This oil-submersible motor mechanical commutation reciprocating pump has efficient height and the little characteristics of loss of plunger stroke thus.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation.
1-pump barrel among the figure, 2-oil-submersible motor, 3-protector, 4-screw mandrel, 5-screw, 6-drive sleeve, 7-bearing support, 8-drive link, 9-plunger, 10-plunger cavity, 11-in line check valve, 12-oil extraction one-way valve, 13-magnetic seal isolator.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
Shown in accompanying drawing; this oil-submersible motor mechanical commutation reciprocating pump comprises motor 2 and pump barrel 1; pump barrel 1 time is fixed with protector 3 and oil-submersible motor 2 by flange according to pipe nipple; oil-submersible motor 2 links to each other with control circuit in the control cabinet of ground by cable; constantly commutate by the control of the control circuit in the control cabinet of ground oil-submersible motor 2, by protector 3 protection oil-submersible motors 2.2 of oil-submersible motors are connected with screw mandrel 4 in the pump barrel 1, screw mandrel 4 upper ends are fixed in the pump barrel 1 by bearing support 7, be connected with drive sleeve 6 on the screw 5 on the screw mandrel 4, drive sleeve 6 is connected with the bearing support 7 that is connected screw mandrel 4 by axial bond, prevent drive sleeve 6 rotations by axial bond, drive sleeve 6 is connected with plunger 9 lower ends by drive link 8, when oil-submersible motor 2 forward and reverse rotations, to rotatablely move by screw mandrel 4 and screw 5 and to be converted into straight line motion, play decelerating effect simultaneously, drive plunger 9 by drive sleeve 6 and drive link 8 again and pump, realize the purpose of lifting down-hole fluid.Plunger 9 places in pump barrel 1 plunger cavity 10, plunger cavity 10 upper and lower end are respectively arranged with the in line check valve 11 that communicates with sleeve pipe, plunger cavity 10 upper and lower end are respectively arranged with the oil extraction one-way valve 12 that communicates with tubing string, when plunger 9 pumps, oil-feed and outwards oil extraction in plunger cavity 10 by in line check valve 11 and 12 controls of oil extraction one-way valve, thereby realize plunger 9 two-way functions.Be provided with magnetic seal isolator 13 between plunger cavity 10 lower ends and the bearing support 7.
Working principle: this oil-submersible motor mechanical commutation reciprocating pump links to each other with tubing string by the connection pipe nipple and transfers to precalculated position in the oil well.During work, periodically forward and reverse rotations of oil-submersible motor 2, leading screw 4 is transformed into pumping of drive link 8 and plunger 9 with forward and reverse rotation of oil-submersible motor 2 and slows down.When plunger 9 is up, in line check valves 11 above the plunger cavity 10 are closed and in line check valves 11 below the plunger cavity 10 are opened, the outer in line check valve 11 of fluid under plunger cavity 10 of pump enters 10 times ring cavities of plunger cavity, on the plunger cavity 10 in the ring cavity liquid oil then enter in the tubing string and give rise to ground by oil extraction one-way valve 12.When plunger 8 is descending, in line check valves 11 above the plunger cavity 10 are opened and in line check valves 11 above the plunger cavity 10 are closed, the outer in line check valve 11 of fluid above plunger cavity 10 of pump enters above the plunger cavity 10 annular space, fluid in the ring casing below the plunger cavity 10 is then entered in the tubing string by plunger cavity 10 following oil extraction one-way valves 12, and gives rise to ground.This shows no matter plunger 9 is up or descending, plunger pump all will suck and discharge fluid, reach double-acting purpose, thereby improve pump efficiency.And can prevent to lock gas.
In sum as can be known, the utility model efficient height, loss of plunger stroke are little, so be particularly suitable for as the oil field oil extraction pump.
Claims (1)
1. oil-submersible motor mechanical commutation reciprocating pump; comprise oil-submersible motor (2) and pump barrel (1); it is characterized in that: the oil-submersible motor (2) that is connected with band protector (3) under the pump barrel (1); the interior oil-submersible motor of pump barrel (1) (2) axle is connected with screw mandrel (4); be connected with drive sleeve (6) on the screw (5) on the screw mandrel (4); drive sleeve (6) is connected with the bearing support that is connected screw mandrel (4) (7) by axial bond; drive sleeve (6) is connected with plunger (9) lower end by drive link (8); plunger (9) places in pump barrel (1) plunger cavity (10); plunger cavity (10) upper and lower end is respectively arranged with the in line check valve (11) that communicates with sleeve pipe; plunger cavity (10) upper and lower end is respectively arranged with the oil extraction one-way valve (12) that communicates with tubing string, is provided with magnetic seal isolator (13) between plunger cavity (10) lower end and the bearing support (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201149345U CN201723423U (en) | 2010-02-21 | 2010-02-21 | Mechanical reversing reciprocating plunger pump of submersible motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201149345U CN201723423U (en) | 2010-02-21 | 2010-02-21 | Mechanical reversing reciprocating plunger pump of submersible motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723423U true CN201723423U (en) | 2011-01-26 |
Family
ID=43491743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201149345U Expired - Fee Related CN201723423U (en) | 2010-02-21 | 2010-02-21 | Mechanical reversing reciprocating plunger pump of submersible motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723423U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234987A (en) * | 2014-09-09 | 2014-12-24 | 赵锡寰 | Submersible oil well pump set with underground drive conversion device |
| CN104329233A (en) * | 2014-10-21 | 2015-02-04 | 大庆九方石油仪器设备有限公司 | Spiral reciprocating type underground oil extraction device |
| CN105308260A (en) * | 2013-06-26 | 2016-02-03 | 韦尔泰克有限公司 | A dowhole pumping assembly and a downhole system |
| CN107061245A (en) * | 2017-06-11 | 2017-08-18 | 江苏航天鸿鹏数控机械有限公司 | A kind of stepping oil extraction pump |
| CN108087230A (en) * | 2017-12-20 | 2018-05-29 | 河北省机械科学研究设计院 | Electromagnetic drive plunger pump |
-
2010
- 2010-02-21 CN CN2010201149345U patent/CN201723423U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105308260A (en) * | 2013-06-26 | 2016-02-03 | 韦尔泰克有限公司 | A dowhole pumping assembly and a downhole system |
| CN105308260B (en) * | 2013-06-26 | 2018-07-17 | 韦尔泰克有限公司 | Pumped downhole component and downhole system |
| US10180051B2 (en) | 2013-06-26 | 2019-01-15 | Welltec Oilfield Solutions Ag | Downhole pumping assembly and a downhole system |
| CN104234987A (en) * | 2014-09-09 | 2014-12-24 | 赵锡寰 | Submersible oil well pump set with underground drive conversion device |
| CN104329233A (en) * | 2014-10-21 | 2015-02-04 | 大庆九方石油仪器设备有限公司 | Spiral reciprocating type underground oil extraction device |
| CN107061245A (en) * | 2017-06-11 | 2017-08-18 | 江苏航天鸿鹏数控机械有限公司 | A kind of stepping oil extraction pump |
| CN107061245B (en) * | 2017-06-11 | 2019-02-19 | 江苏航天鸿鹏数控机械有限公司 | A kind of stepping oil extraction pump |
| CN108087230A (en) * | 2017-12-20 | 2018-05-29 | 河北省机械科学研究设计院 | Electromagnetic drive plunger pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20180221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |