CN201065842Y - Electric submersible pump set for extremely small displacement well - Google Patents
Electric submersible pump set for extremely small displacement well Download PDFInfo
- Publication number
- CN201065842Y CN201065842Y CNU2007200953347U CN200720095334U CN201065842Y CN 201065842 Y CN201065842 Y CN 201065842Y CN U2007200953347 U CNU2007200953347 U CN U2007200953347U CN 200720095334 U CN200720095334 U CN 200720095334U CN 201065842 Y CN201065842 Y CN 201065842Y
- Authority
- CN
- China
- Prior art keywords
- pump
- motor unit
- unit
- shaft
- submersible pump
- 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
Links
- 238000006073 displacement reaction Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 15
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a super small displacement electric submerged pump set in water wells, comprising a motor unit and a pump head; wherein, the motor unit is arranged in a guide sleeve; the upper end of the guide sleeve is tightly connected with the pump head; the motor unit is connected at the lower end through a shaft extended from the lower end via a coupling; a pump group of a pump shaft is extended from the upper end; the shaft axes of the motor unit and the pump group are on the same straight line; an end thrust bearing is arranged at the lower end of the submerged pump set. The utility model has the advantages that an annular cavity for well liquid flow is arranged on the peripheral surface of the motor, so the flow velocity of well liquid on the peripheral surface of the motor can be controlled by adjusting the annular section size according to different displacement; high output pump pressure can eliminate blockage, thereby obtaining satisfactory heat dissipation conditions and materializing the proposal of super small displacement electric submerged pump set.
Description
Technical field
The utility model belongs to well with electronic submersible pump unit, particularly relate to a kind of may command motor outer circumferential face the well flow velocity, can get rid of obstruction, make the special float amount well that reaches desirable radiating condition with electronic submersible pump unit.
Background technique
At present by the widely used a kind of machine in each oil field oily equipment of quarrying---the well of patterns such as centrifugal, axial flow is with electronic submersible pump unit, and have following shortcoming: it is not suitable for being lower than 50 meters oil wells of 3/ day at fluid supply capacity and uses.
The oil well that fluid supply capacity is lower accounts for the world and has developed the ratio of oil well more than 80%; People's machine is adopted the low oil reservoir of fluid supply capacity, can only continue to use traditional sucker rod pumping pumping unit, and it is low that these equipment generally have efficient, the waste electric energy is not suitable for inclined shaft, is not suitable for high-lift well, the ground installation bulky complex, the maintenance management difficulty is big, the more high shortcoming of operating cost.Use suspending type electric oil submerged screw pump unit instead, its acquisition expenses is too high.The well of patterns such as the imagination employing is centrifugal, axial flow can obtain to invest benefits such as little, that efficient is high, saving power, is fit to various inclined shafts, is fit to various lifts, and the ground installation volume is little, and simple, and is easy to maintenance, and operating cost is lower with electronic submersible pump unit; But because its motor unit is arranged under the pump group, when special hour of discharge capacity, well liquid was low excessively at the flow velocity of motor unit outer circumferential face; Cover can improve flow velocity with the water conservancy diversion cover, but the suction lift of pump group input end is too little, is difficult to overcome the obstruction disadvantage, causes the radiating condition of its auxiliary motor poor; Become insoluble problem.
Summary of the invention
The utility model provides a kind of suitable fluid supply capacity low oil well for solving the technical problem that exists in the known technology, the well flow velocity of may command motor outer circumferential face, can get rid of obstruction, the special float amount well that makes the radiating condition that reaches desirable is with electronic submersible pump unit.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
The special float amount of the utility model well comprises: be contained in the motor unit in the water conservancy diversion cover with electronic submersible pump unit; The close-connected head in water conservancy diversion set upper side; The arbor that its motor unit is stretched out by the lower end is connecting by coupling and is being arranged at its lower end, and stretches out the pump group of pump shaft from the upper end; The shaft axis of motor unit and pump group is on same straight line; Be provided with thrust bearing in the lower end of submersible pump unit in addition.
The utility model can also adopt following technical measures:
The pump group be centrifugal or pump shaft such as axial flow and pump case in the submergence type pump group in same axle center.
Advantage and the good effect that the utlity model has are:
Rationally be provided with toroidal cavity at the motor outer circumferential face, the pump group is arranged on the lower end of motor unit, and the well liquid of unit output this toroidal cavity of must flowing through according to different displacements, is adjusted the width size of its circular crosssection, the well flow velocity of may command motor outer circumferential face; And very high output pump pressure can get rid of obstruction, obtains satisfied radiating condition thereby motor unit in the utility model is in operation, and main is that special float amount well is become a reality with the imagination of electronic submersible pump unit.
Description of drawings:
Fig. 1 is the vertical profile structural representation of the special float amount of the utility model well with electronic submersible pump unit.
The number in the figure explanation:
01: oil pipe 02: cable joining
10: head 11: liquid outlet opening
12: fairlead 20: the water conservancy diversion cover
30: motor unit 31: lead-in wire
32: casing 33: arbor
34: coupling 40: toroidal cavity
50: pump group 51: liquid entering hole
52: pump case 53: pump shaft
54: thrust bearing
Embodiment:
Followingly the utility model is described in detail with reference to drawings and Examples.
The special float amount of the utility model well is with electronic submersible pump unit, and as shown in Figure 1, special float amount well comprises: be contained in water conservancy diversion and overlap 20 interior motor unit 30 with electronic submersible pump unit; The close-connected head 10 in water conservancy diversion set upper side; The arbor 33 that its motor unit is stretched out by the lower end is connecting by coupling 34 and is being arranged at its lower end, and stretches out the pump group 50 of pump shaft 53 from the upper end; The shaft axis of motor unit and pump group is on same straight line; Be provided with thrust bearing 54 in the lower end of submersible pump unit in addition.
The motor unit upper end closely is connected with the head lower end; The outer circumferential face of motor unit and water conservancy diversion cover inwall are formed with toroidal cavity 40.
Motor unit is arranged in the water conservancy diversion cover, and the upper end of its casing 32 closely is connected with the head lower end, and it goes between and 31 draws from the upper end, closely connects conduction by fairlead and cable joining 02.Its arbor stretches out by coupling from the lower end and is connected with pump shaft.
Water conservancy diversion overlaps cylindrical shape, and its upper end portion closely is connected with the lower end of head, and its underpart closely is connected with pump case 52 upper ends.
Head is arranged on special float amount well with electronic submersible pump unit upper end portion, and its inside is formed with liquid outlet opening 11 and fairlead 12, and liquid outlet opening and fairlead are isolated and up/down perforation head respectively mutually; The connection that is connected with the lower end of oil pipe 01 of the upper end of liquid outlet opening, its lower end is connected with toroidal cavity.
The pump case upper end portion of pump group closely is connected with water conservancy diversion cover underpart, and the pump case underpart is provided with liquid entering hole 51, and pump case inner chamber upper end is connected with the toroidal cavity lower end; Its pump shaft stretches out with coupling from the upper end and is connected.
Be provided with thrust bearing 54 in the lower end of submersible pump unit in addition.
The pump group is pump shafts such as centrifugal, axial flow and the pump case submergence type pump group in same axle center.
Below the working procedure of the special float amount of the utility model well with electronic submersible pump unit described:
When adopting the special float amount of the utility model well with electronic submersible pump unit, ground power supply is passed through to go between with electrical energy transfer to after the motor unit by cable joining, arbor drives the pump shaft running by coupling, well liquid is sucked and lifting from liquid entering hole, the well-designed toroidal cavity of well liquid process is with desirable flow velocity, the heat that produces when motor unit is moved is in time taken away, and makes motor unit obtain desirable radiating condition, through liquid outlet opening and oil pipe well liquid is lifted to ground again.
At the thrust bearing that the lower end of submersible pump unit is provided with, can bear the axial force that pump shaft produces.
Claims (2)
1. a special float amount well comprises: be contained in the motor unit in the water conservancy diversion cover with electronic submersible pump unit; The close-connected head in water conservancy diversion set upper side; It is characterized in that arbor (33) that motor unit (30) is stretched out by the lower end is connecting by coupling (34) is arranged at its lower end, and stretches out the pump group (50) of pump shaft (53) from the upper end; The shaft axis of motor unit and pump group is on same straight line; Be provided with thrust bearing (54) in addition in the lower end of submersible pump unit.
2. special float amount well according to claim 1 is with electronic submersible pump unit, it is characterized in that the pump group be centrifugal or pump shaft such as axial flow and pump case in the submergence type pump group in same axle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200953347U CN201065842Y (en) | 2007-02-16 | 2007-02-16 | Electric submersible pump set for extremely small displacement well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200953347U CN201065842Y (en) | 2007-02-16 | 2007-02-16 | Electric submersible pump set for extremely small displacement well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201065842Y true CN201065842Y (en) | 2008-05-28 |
Family
ID=39483018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200953347U Expired - Fee Related CN201065842Y (en) | 2007-02-16 | 2007-02-16 | Electric submersible pump set for extremely small displacement well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201065842Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103502652A (en) * | 2011-01-21 | 2014-01-08 | 大陆汽车有限责任公司 | Electric liquid pump with cooled wet-running area |
| CN112234738A (en) * | 2020-09-30 | 2021-01-15 | 台州谱罗顿机电有限公司 | Variable frequency motor for pump |
| CN113339275A (en) * | 2021-06-21 | 2021-09-03 | 工进利天泵（宁波）有限公司 | Electric liquid pump |
-
2007
- 2007-02-16 CN CNU2007200953347U patent/CN201065842Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103502652A (en) * | 2011-01-21 | 2014-01-08 | 大陆汽车有限责任公司 | Electric liquid pump with cooled wet-running area |
| US9879696B2 (en) | 2011-01-21 | 2018-01-30 | Continental Automotive Gmbh | Electric fluid pump having a cooled wet section |
| CN112234738A (en) * | 2020-09-30 | 2021-01-15 | 台州谱罗顿机电有限公司 | Variable frequency motor for pump |
| CN113339275A (en) * | 2021-06-21 | 2021-09-03 | 工进利天泵（宁波）有限公司 | Electric liquid 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: 20080528 Termination date: 20160216 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |