CN201068858Y - Simplified type oil-submersible electric screw pump - Google Patents
Simplified type oil-submersible electric screw pump Download PDFInfo
- Publication number
- CN201068858Y CN201068858Y CNU2007200255222U CN200720025522U CN201068858Y CN 201068858 Y CN201068858 Y CN 201068858Y CN U2007200255222 U CNU2007200255222 U CN U2007200255222U CN 200720025522 U CN200720025522 U CN 200720025522U CN 201068858 Y CN201068858 Y CN 201068858Y
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- CN
- China
- Prior art keywords
- screw pump
- submersible
- oil
- motor
- electric screw
- 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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- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a simplified submersible electric screw pump, which comprises a submersible motor, a submersible motor protector, a thrust bearing device, a universal coupling and a screw pump. Through the submersible motor protector, the thrust bearing device and the universal coupling in order, the submersible motor is connected with the screw pump and controlled by a ground power-supply controller. The utility model uses a submersible motor with six poles or more to drive the screw pump, thereby saving a mechanical reducer, solving the problem of the restrict of reliability and passed torque, guaranteeing the longer service life and larger power application range of the submersible electric screw pump without a mechanical reducer, widening the application space of the submersible electric screw pump, and realizing the advantages of huge discharge and high head liquid collecting, and being widely applied to technics of deep mud oil.
Description
One, technical field
The utility model relates to petroleum production oil-submersible electric screw pump device, particularly a kind of simplified style oil-submersible electric screw pump.
Two, background technique
Oil-submersible electric screw bolt well bottom is made up of oil-submersible motor, oil-submersible motor protector, mechanical deceleration device, thrust bearing device, universal shaft coupling and screw pump usually, is installed in the well liquid of down-hole to carry out hydraulic lifting.Because the restriction of oil well casing size, mechanical deceleration device must be a slim-lined construction, and the moment of torsion of its reliability and transmission is restricted, and has greatly shortened the working life of oil-submersible electric screw pump, has restricted its application area.
Three, summary of the invention
The purpose of this utility model provides a kind of simplified style oil-submersible electric screw pump, and shortcoming or deficiency that it both can overcome effectively or avoid existing in the above-mentioned prior art can guarantee its reliability and transmitting torque to greatest extent again, prolong its working life.
Simplified style oil-submersible electric screw pump described in the utility model; comprise oil-submersible motor, oil-submersible motor protector, thrust bearing device, universal shaft coupling and screw pump; be connected with screw pump by motor protecter, thrust bearing device and Hooks coupling universal coupling in turn on the described oil-submersible motor, controlled by the ground electrical power control gear.
Wherein, described oil-submersible motor is the asynchronous or synchronous submersible electric motor of sextupole or more multipole number, and clutch end is positioned at the motor upper end.Described ground electrical power control gear is the frequency modulation control device.
The utility model has following advantage compared with prior art:
1, because the utility model has saved the mechanical deceleration device between oil-submersible motor and the screw pump, overcome the restricted problem of its reliability and transmitting torque, guaranteed that the oil-submersible electric screw pump that does not have mechanical speed reducer has longer running life and bigger power application scope, expand the application space of oil-submersible electric screw pump, can realize big discharge capacity, the high-lift liquid of adopting.
2, saved mechanical deceleration device between oil-submersible motor and the screw pump, both saved the weakest link of oil-submersible electric screw pump system reliability, simplified the structure.
Four, description of drawings
Accompanying drawing is the utility model structural representation.
Five, embodiment
Consult accompanying drawing; a kind of simplified style oil-submersible electric screw pump; comprise oil-submersible motor, oil-submersible motor protector, thrust bearing device, universal shaft coupling and screw pump; 5 be connected mutually by motor protecter 2, thrust bearing device 3 and Hooks coupling universal coupling 4 and screw pump in turn on the oil-submersible motor 1, controlled by the ground electrical power control gear.
Oil-submersible motor 1 is the asynchronous or synchronous submersible electric motor of sextupole or more multipole number, and clutch end is positioned at the motor upper end.The ground electrical power control gear is the frequency modulation control device.Oil-submersible motor 1 is controlled by control gear 7 by cable 6.
During operation, oil-submersible motor 1 is adjusted to below the 1000r/m at the rotating speed under the frequency, is complementary with the rotating speed of screw pump 5 by ground electrical power control gear 7.
Claims (3)
1. simplified style oil-submersible electric screw pump; comprise oil-submersible motor, oil-submersible motor protector, thrust bearing device, universal shaft coupling and screw pump; it is characterized in that being connected with screw pump by motor protecter, thrust bearing device and Hooks coupling universal coupling in turn on the described oil-submersible motor, controlled by the ground electrical power control gear.
2. simplified style oil-submersible electric screw pump according to claim 1 is characterized in that described oil-submersible motor is the asynchronous or synchronous submersible electric motor of sextupole or more multipole number, and clutch end is positioned at the motor upper end.
3. simplified style oil-submersible electric screw pump according to claim 1 is characterized in that described ground electrical power control gear is the frequency modulation control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200255222U CN201068858Y (en) | 2007-07-18 | 2007-07-18 | Simplified type oil-submersible electric screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200255222U CN201068858Y (en) | 2007-07-18 | 2007-07-18 | Simplified type oil-submersible electric screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201068858Y true CN201068858Y (en) | 2008-06-04 |
Family
ID=39490242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200255222U Expired - Fee Related CN201068858Y (en) | 2007-07-18 | 2007-07-18 | Simplified type oil-submersible electric screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201068858Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206908A (en) * | 2020-04-13 | 2020-05-29 | 冯新永 | Oil pumping device of electric screw pump capable of separately pumping and mixing out oil submersible oil |
-
2007
- 2007-07-18 CN CNU2007200255222U patent/CN201068858Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206908A (en) * | 2020-04-13 | 2020-05-29 | 冯新永 | Oil pumping device of electric screw pump capable of separately pumping and mixing out oil submersible oil |
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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: 20080604 Termination date: 20120718 |