CN2648127Y - Sand-corrosion resistant oil-submersible electric pump - Google Patents
Sand-corrosion resistant oil-submersible electric pump Download PDFInfo
- Publication number
- CN2648127Y CN2648127Y CN 200320100191 CN200320100191U CN2648127Y CN 2648127 Y CN2648127 Y CN 2648127Y CN 200320100191 CN200320100191 CN 200320100191 CN 200320100191 U CN200320100191 U CN 200320100191U CN 2648127 Y CN2648127 Y CN 2648127Y
- Authority
- CN
- China
- Prior art keywords
- sand
- pump
- corrosion resistance
- bearing
- sand cutting
- 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
A sand-corrosion resistance electric submersible pump mainly solves the problems existing in the prior electric submersible pump technology that the sand-corrosion resistance ability of the pump body is poor and the abrasion is serous. The utility model is characterized in that a shaft (7) with a sand-proof shaft sleeve (5) is fixed with a sand-corrosion resistance device (6); the sand-corrosion resistance device (6) is internally fixed with a bearing; an assembly length at a radial lifting position of a friction pair of the bearing is 1-1.5 times of the shaft diameter. The electric submersible pump is characterized by strong sand-corrosion resistance ability and long service life.
Description
Technical field:
The utility model relates to a kind of mechanical oil recovery equip ment in the oil recovery field, oil field, especially a kind of submersible electric pump with stronger anti-sand cutting.
Background technique:
In oil recovery field, oil field, the electric submersible centrifugal pump unit is considered to a kind of both economical effective oil production method, can extract formation fluid from the oil well of darker different situations in a large number.The electric submersible centrifugal pump unit is made of motor, protector, gas separator, submersible electric pump etc.The subject matter that existing submersible electric pump exists in actual use is anti-sand cutting ability, i.e. radially the setting upright position and axial thrust position and can wearing and tearing be increased of submersible electric pump when sand content is higher in the well liquid because of well liquid contains grittiness, and then causing Electric Submersible Pump Unit to produce serious vibration, the balance that severe patient just can destroy pump shaft causes unit to damage.
The model utility content:
In order to overcome the deficiency of the anti-sand cutting ability that exists in the existing submersible electric pump technology, the utility model provides a kind of submersible electric pump with stronger anti-sand cutting, and this kind submersible electric pump has anti-sand cutting ability characteristics strong, that grow running life in containing sand drain.
The technical solution of the utility model is: the anti-sand cutting submersible electric pump of this kind, comprise pump upper connection, top bearing support, guide wheel, impeller, axle, housing, key, lower contact, spline housing, have the sand control axle sleeve the axle on be fixed with an anti-sand cutting device, at described anti-sand cutting device internal fixation bearing is arranged, the fastness that this bearing has its radially the length of thread engagement at the place of setting upright be 1～1.5 times of its diameter of axle.
The utlity model has following beneficial effect: owing to be provided with high performance anti-sand cutting bearing in the anti-sand cutting device that the utility model adopted, the fastness that this bearing had be adopt high hardness, toughness preferably, anti abrasive high-tech material makes, have good wear resistance, therefore the anti-sand cutting ability of Electric Submersible Pump Unit is enhanced.Therefore the utlity model has anti-sand cutting ability characteristics strong, service life length in containing sand drain.
Description of drawings:
Accompanying drawing 1 is an axial arrangement sectional view of the present utility model;
1-pump upper connection among the figure, 2-top bearing support, 3-guide wheel, 4-impeller, 5-sand control axle sleeve, the anti-sand cutting device of 6-, 7-axle, 8-housing, 9-key, 10-lower contact, spline housing.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in FIG., the anti-sand cutting submersible electric pump of this kind is the same with other submersible electric pump to have conventional Electric Submersible Pump Unit structure, promptly comprise pump upper connection 1, top bearing support 2, guide wheel 3, impeller 4, axle 7, housing 8, key 9, lower contact 10, spline housing 11, its difference part is to be provided with an anti-sand cutting device 6 and sand control axle sleeve 5 in pump, promptly be fixed with an anti-sand cutting device 6 on 7 at the axle that has sand control axle sleeve 5, at described anti-sand cutting device 6 internal fixation bearing is arranged, the fastness that this bearing has its radially the length of thread engagement at the place of setting upright be 1～1.5 times of its diameter of axle.
For the Electric Submersible Pump Unit vibration that gauge wear in the submersible electric pump, axial thrust wearing and tearing are caused is reduced to minimum, make the run stability of unit in containing sand drain be maintained at the optimum state, anti-sand cutting device is arranged in the centrifugal pump, and the high hardness wear-resisting material is arranged in the anti-sand cutting device.
In addition, matching gap that the friction of needs antagonism sand cutting device is paid and length of thread engagement and high hardness wear-resisting corrosion material are selected, in structure to submersible electric pump, matching gap, service condition, and the performance that reaches, determine that matching gap is consistent with Electric Submersible Pump Unit, length of thread engagement is 1～1.5 times of its diameter of axle.The wear-corrosion resistance material selection is to guarantee to select the hardness of the hardness of material greater than well liquid medium sand under certain tough implementations, friction is paid not by the abrasion of gravel in the well liquid, makes to the utlity model has best implementation result.
The axial wearing and tearing that radially reach of using its submersible electric pump of Electric Submersible Pump Unit of the present utility model are being reduced greatly, and anti-sand cutting performance is greatly improved, and the radial and axial bearing capacity of pump is also strengthened greatly.The utility model can satisfy the needs of each elephant production both at home and abroad, has also widened the using scope of Electric Submersible Pump Unit simultaneously.
Anti-sand cutting Electric Submersible Pump Unit applies to and contains in the sand oil well, unit work the time contains sand drain liquid and enters the centrifugal pump from the inlet of separator inlet or pump, contain the lifting of sand drain liquid by multi-stage impeller and the conversion of the energy of multistage guide wheel, make at last to contain sand drain liquid and given rise to ground.In aspiration procedure, contain sand drain liquid and be full of whole centrifugal pump, can make radially set upright position and the axial thrust position of centrifugal pump in operation process enter and contain sand drain liquid like this, radially setting upright with the axial thrust position of pump taken place by the abrasion of the gravel in well liquid phenomenon, by anti-sand cutting device is installed in Electric Submersible Pump Unit, radially setting upright with the anti-pump erosion in axial thrust position ability of Electric Submersible Pump Unit improved.The characteristics of anti-sand cutting Electric Submersible Pump Unit are that anti-sand cutting performance is very strong, and it overcomes the weakness of this anti-sand cutting poor performance of common submersible electric pump in containing sand drain.The wearing and tearing of Electric Submersible Pump Unit are reduced, and vibration alleviates, and run stability remains on the optimum state, and also be greatly enhanced the working life of unit.
Claims (1)
1, a kind of anti-sand cutting submersible electric pump, comprise pump upper connection (1), top bearing support (2), guide wheel (3), impeller (4), axle (7), housing (8), key (9), lower contact (10), spline housing (11), it is characterized in that: be fixed with an anti-sand cutting device (6) on (7) at the axle that has sand control axle sleeve (5), at described anti-sand cutting device (6) internal fixation bearing is arranged, the fastness that this bearing has its radially the length of thread engagement at the place of setting upright be 1～1.5 times of its diameter of axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320100191 CN2648127Y (en) | 2003-10-13 | 2003-10-13 | Sand-corrosion resistant oil-submersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320100191 CN2648127Y (en) | 2003-10-13 | 2003-10-13 | Sand-corrosion resistant oil-submersible electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2648127Y true CN2648127Y (en) | 2004-10-13 |
Family
ID=34339122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320100191 Expired - Fee Related CN2648127Y (en) | 2003-10-13 | 2003-10-13 | Sand-corrosion resistant oil-submersible electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2648127Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627779A (en) * | 2020-12-21 | 2021-04-09 | 耐尔能源装备有限公司 | Anti-scaling corrosion-inhibition device for electric submersible pump |
-
2003
- 2003-10-13 CN CN 200320100191 patent/CN2648127Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112627779A (en) * | 2020-12-21 | 2021-04-09 | 耐尔能源装备有限公司 | Anti-scaling corrosion-inhibition device for electric submersible pump |
| CN112627779B (en) * | 2020-12-21 | 2021-07-20 | 耐尔能源装备有限公司 | Anti-scaling corrosion-inhibition device for electric submersible pump |
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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: 20041013 Termination date: 20121013 |