CN201412313Y - Reciprocating precession type oil-submersible electric pump - Google Patents
Reciprocating precession type oil-submersible electric pump Download PDFInfo
- Publication number
- CN201412313Y CN201412313Y CN2009200145414U CN200920014541U CN201412313Y CN 201412313 Y CN201412313 Y CN 201412313Y CN 2009200145414 U CN2009200145414 U CN 2009200145414U CN 200920014541 U CN200920014541 U CN 200920014541U CN 201412313 Y CN201412313 Y CN 201412313Y
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- CN
- China
- Prior art keywords
- rotor
- stator
- reciprocating
- plunger
- submersible electric
- 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 provides a reciprocating precession type oil-submersible electric pump, which comprises a rotor and a stator of which are arranged on a linear motor, a sliding guide sleeve and a motor casing. The oil-submersible electric pump is characterized in that a spiral angle chute is arranged on the inner surface of the lower part of the motor casing; a reciprocating rotary moving slidingblock of the rotor is arranged on a rotor base; and an inclined guide groove is arranged on the inner surface of the sliding guide groove. Reciprocating and rotary combined movements are performed between a plunger and a pump cylinder, and then the radial clearance uniformity between the rotor and the stator and between the plunger and pump cylinder in the running process is obviously improved, thereby preventing sand jamming. The friction uniformity between the rotor and the stator and between the plunger and the pump cylinder is obviously improved, the motion resistance force is reduced, the force between friction pairs of the oil-submersible electric pump is reasonable, and the equipment friction is reduced. The uniformity of the magnetic field and the magnetic lines of force is enhanced, thereby enhancing the use property and the service life of the equipment is enhanced. The rotor blocking phenomenon in downward movement is eliminated, the normal running of the equipment is ensured, and the production efficiency is enhanced.
Description
Technical field
The utility model belongs to a kind of oil field equipment, particularly a kind of reciprocating electric submersible pump.
Background technique
In recent years, a kind of novel oil production device---numerically controlled reciprocating submersible pump of power plant and oil well pump being become one is developed in the oil recovery machiner field, with traditional pumping unit relatively, advantage such as have energy-conservation, consumption reduction, operating cost is low, manufacturing efficiency is high, adaptation is wide.But in production practices, find to remain in following shortcoming and defect: 1, the nonuniformity that rubs between mover and stator, plunger and the pump barrel, not only increased resistance to motion, also aggravated the wearing and tearing of equipment.2, simple straight line motion between mover and stator, plunger and the pump barrel, and there is nonuniformity in the radial clearance between narrow limitation, mover and stator, plunger and the pump barrel of the effect of sand control card, cause oil well pump in running, the sand card is prone at gap Xiao Chu, thereby simple straight line motion is unfavorable for changing the force environment that is subjected to by the card sand grains.3, simple straight reciprocating motion is unfavorable for improving the nonuniformity of the magnetic field that caused by following reason and the nonuniformity of the magnetic line of force: a, stator core construction.B, mover and stator be axial decentraction under stress.4, owing to the balance screen casing is set in the lower end of stator, be in operation, descending sand grains is balanced screen casing and blocks and can not discharge in the fluid, the fault of sand grains in this obstruction takes place often, cisco unity malfunction.
The model utility content
The purpose of this utility model provides a kind of reciprocating electric submersible pump, it is reciprocal between mover and stator, plunger and the pump barrel and the rotation compound motion, significantly improve the radial clearance uniformity between the mover and stator, plunger and pump barrel in the running, be difficult for taking place the sand card, significantly improve the uniformity that rubs between mover and stator, plunger and the pump barrel, reduce resistance to motion, it is stressed reasonable to make simultaneously between each friction pair of submersible electric pump, reduces the wearing and tearing of equipment.Improve the uniformity of the magnetic field and the magnetic line of force, thereby improve the usability and the working life of equipment.Eliminate the mover phenomenon of being obstructed when descending, enhance productivity.
The purpose of this utility model is achieved by the following technical solution: it comprises mover, the stator of linear electric motor, sliding guide sleeve, motor housing is characterized in that: the internal surface of motor housing bottom is provided with the lead angle chute, and the reciprocal rotating operation slide block of mover is set on the mover base; The sliding guide sleeve internal surface is provided with inclined guide groove.
Lead angle chute lower end at motor housing is provided with the liquid in-out mouth.
The utility model and prior art are relatively, has following advantage: 1, be reciprocal and rotation compound motion between mover and stator, plunger and the pump barrel, significantly improve the radial clearance uniformity between the mover and stator, plunger and pump barrel in the running, prevent the sand card.2, significantly improve the uniformity that rubs between mover and stator, plunger and the pump barrel, reduce resistance to motion, reduce the wearing and tearing of equipment.3, make between each friction pair of submersible electric pump stressed rationally, reduce wear.4, improve the uniformity of the magnetic field and the magnetic line of force, thereby improve the usability and the working life of equipment.5, eliminate the mover phenomenon of being obstructed when descending, assurance equipment normally moves, and enhances productivity.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that the internal surface of motor housing bottom is provided with lead angle chute schematic representation (clipping the mover base portion).
Fig. 3 is that the sliding guide sleeve internal surface is provided with the inclined guide groove schematic representation.
Fig. 4 is the plan view of Fig. 3.
Embodiment
See Fig. 1, concrete structure of the present utility model is as follows: the stator upper end of submersible electric pump linear electric motor connects oil well pump pump case lower end by prior art, linear electric motor adopt following prior art: full-enclosed permanent-magnet unit 3 is assembled at assembling mover iron core 2 and interval on the mover axle 4 of mover, the stator of being made up of stator coil 6 and stator iron core 7 evenly is set in stator casing 1 at interval, and several sliding guide sleeves 5 evenly are set.See Fig. 1-4, it is as follows that the utility model improves innovation structure: the internal surface in motor housing 8 bottoms is provided with two lead angle chutes 13, and (dotted portion is the lead angle chute 13 that cuts open on the partial shell among Fig. 1, solid line is partly for being positioned at the lead angle chute 13 of mover base 9 back motor housing internal surfaces), article two, lead angle chute 13 is along circumferentially uniform, and every lead angle chute 13 is provided with in the half cycle scope.Lead angle chute lower end at motor housing 8 is provided with liquid in-out mouth 11.The reciprocal rotating operation slide block of 10, two movers of two reciprocal rotating operation slide blocks of mover 10 is set along circumferentially uniform and be slidingly matched with chute 13 on mover base 9.When electric pump moved, mover carried out up and down reciprocatingly the superimposed motion with rotation, promptly along the lead angle orbiting motion.Be provided with along circumferential several uniform inclined guide grooves 14 at sliding guide sleeve 5 internal surfaces, mover is when precession, and sand scale etc. are discharged to the motor lower end under the space by the sliding guide sleeve inclined guide groove, and is external by liquid in-out mouth 11 discharge motors.The lower end of motor housing 8 connects tubing round thread joint 12.
Claims (2)
1, a kind of reciprocating electric submersible pump, it comprises mover, the stator of linear electric motor, sliding guide sleeve, motor housing is characterized in that: the internal surface of motor housing bottom is provided with the lead angle chute, and the reciprocal rotating operation slide block of mover is set on the mover base; The sliding guide sleeve internal surface is provided with inclined guide groove.
2, reciprocating electric submersible pump according to claim 1 is characterized in that: the lead angle chute lower end at motor housing is provided with the liquid in-out mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200145414U CN201412313Y (en) | 2009-06-12 | 2009-06-12 | Reciprocating precession type oil-submersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200145414U CN201412313Y (en) | 2009-06-12 | 2009-06-12 | Reciprocating precession type oil-submersible electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412313Y true CN201412313Y (en) | 2010-02-24 |
Family
ID=41714197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200145414U Expired - Fee Related CN201412313Y (en) | 2009-06-12 | 2009-06-12 | Reciprocating precession type oil-submersible electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201412313Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775033A (en) * | 2013-04-03 | 2014-05-07 | 中国石油天然气股份有限公司 | Immovable string lifting-up and putting-down linear motor drive electric submersible pump and method thereof |
-
2009
- 2009-06-12 CN CN2009200145414U patent/CN201412313Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775033A (en) * | 2013-04-03 | 2014-05-07 | 中国石油天然气股份有限公司 | Immovable string lifting-up and putting-down linear motor drive electric submersible pump and method thereof |
| CN103775033B (en) * | 2013-04-03 | 2017-02-08 | 中国石油天然气股份有限公司 | Immovable string lifting-up and putting-down linear motor drive electric submersible pump and method thereof |
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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: 20100224 Termination date: 20110612 |