CN2528976Y - Underground screw pump driven by oil-submersible D.C. Dynamo - Google Patents
Underground screw pump driven by oil-submersible D.C. Dynamo Download PDFInfo
- Publication number
- CN2528976Y CN2528976Y CN 01228116 CN01228116U CN2528976Y CN 2528976 Y CN2528976 Y CN 2528976Y CN 01228116 CN01228116 CN 01228116 CN 01228116 U CN01228116 U CN 01228116U CN 2528976 Y CN2528976 Y CN 2528976Y
- Authority
- CN
- China
- Prior art keywords
- screw pump
- screw
- shaft coupling
- oil
- direct current
- 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
Abstract
The utility model relates to an underground screw pump which is driven by an oil-submersible DC dynamo and is formed by way that a protector is connected with the oil-submersible dc dynamo and a shaft coupling assembly, and a minor shaft is connected with the shaft coupling assembly. Two screw pumps in opposite spiral directions are connected through an eccentric shaft coupling to form a screw pump unit. A rotor of the screw pump is connected with the minor shaft through the eccentric shaft coupling. Liquid feeding bores are arranged on a casing and liquid discharge bores are arranged in the middle of the casing. The liquid discharge bores and the liquid feeding bores on an oil pipe are communicated by a flow guide sleeve which is welded on the casing.
Description
The utility model relates to the oily direct current generator of diving and drives subsurface progressive cavity, belongs to the down-hole mechanical oil production equipment.
In the oil extraction process, faults such as the disconnected bar of screw rod pump rod takes off frequently appear to common ground driving screw pump in problem because sucker rod quality, fatigue, wearing and tearing, oil is thick etc., ground has bar to drive in addition, power consumpiton is very big, and efficient is low, wastes energy, in order to address the above problem, give full play to the superiority of screw pump oil production,, developed the utility model in conjunction with the mature technology of electric submersible centrifugal pump---oily the direct current generator of diving drives subsurface progressive cavity.
The purpose of this utility model provides the oily direct current generator of diving and drives subsurface progressive cavity, utilizes the oily direct current generator of diving to drive subsurface progressive cavity, and solving ground has technical problems such as the power consumption of bar drive screw pump is big, efficient is low, bar is disconnected, bar takes off.
The utility model is achieved through the following technical solutions: the oily direct current generator of diving drives subsurface progressive cavity and is made of latent oily direct current generator, motor protecter, screw pump, startup coupling assembly, eccentric shaft coupling, minor axis; Motor protecter links to each other with coupling assembly with latent oily direct current generator, and minor axis is connected with coupling assembly, and screw pump rotor is connected with minor axis by eccentric shaft coupling.
Above-mentioned screw pump can be the screw pump group, screw pump group structure is: be made up of the two screw rods pump that eccentric shaft coupling links together, rotation direction is opposite, on the housing of screw pump group, above and below at the two screw rods pump respectively has inlet opening, neutral position has liquid outlet opening, the water conservancy diversion cover is welded on the housing of screw pump group, and the inlet opening on middle liquid outlet opening and the oil pipe is linked up.
The utility model advantage is the direct drive screw pump-unit of oily direct current generator of 1. diving, and utilizes DC motor speed-regulating characteristics easily, does not need mechanical deceleration device, and is simple in structure, the reliability height; 2. because of need not mechanical deceleration device, shortcomings such as mechanical deceleration device complex structure, poor reliability have been overcome; 3. solved the disconnected problem of screw rod pump rod when having bar to drive, improved system effectiveness and reliability, cut down the consumption of energy.4. the screw pump that two rotation directions are opposite is used in combination, and hydraulic load balances each other when guaranteeing work, and simultaneously, two screw pumps are infused simultaneously, and under same external dimension, discharge capacity is multiplied;
Accompanying drawing is the utility model structural drawing.
Below in conjunction with accompanying drawing the utility model is done specific descriptions:
The oily direct current generator of diving drives subsurface progressive cavity and is made of latent oily direct current generator 10, motor protecter 9, screw pump 6, startup coupling assembly 8, eccentric shaft coupling 18, minor axis 11; Motor protecter 9 links to each other with coupling assembly 8 with latent oily direct current generator 10, and minor axis 11 is connected with coupling assembly 8, and the rotor 12 of screw pump 6 is connected with minor axis 11 by eccentric shaft coupling 18.
Above-mentioned screw pump can be the screw pump group, and the structure of screw pump group is to be linked together by the eccentric shaft coupling 5 two screw rods pump 4,6 that rotation direction is opposite; On the housing 16 of screw pump group, respectively have inlet opening 3,17 in the above and below of two screw rods pump 4,6, neutral position has liquid outlet opening 13, and water conservancy diversion cover 14 is welded on the housing 16 of screw pump group, and middle liquid outlet opening 13 and the inlet opening on the oil pipe 15 are linked up.
Referring to accompanying drawing, power supply 1 arrives the oily direct current generator 10 of diving by cable 7 with power delivery, make its rotation, the rotor rotation of the two screw rods pump 4,6 in the drive screw pump group is in filler opening 3,17 suction pumps of fluid through having filter screen, under the rotor effect of two screw rods pump 4,6, the fluid supercharging that sucks, and in the chamber at eccentric shaft coupling 5 places, mix, upwards flow along water conservancy diversion cover 14 through oil outlet 13, after entering oil pipe 15, give rise to ground through safety valve 2.
Claims (2)
1, latent oily direct current generator drives subsurface progressive cavity; it is characterized in that: motor protecter (9) links to each other with coupling assembly (8) with latent oily direct current generator (10); minor axis (11) is connected with coupling assembly (8), and the rotor (12) of screw pump (6) is connected with minor axis (11) by eccentric shaft coupling (18).
2, latent oily direct current generator as claimed in claim 1 drives subsurface progressive cavity, and it is characterized in that: above-mentioned screw pump (6) can be the screw pump group, and the structure of screw pump group is to be linked together by eccentric shaft coupling (5) the two screw rods pump (4,6) that rotation direction is opposite; On the housing (16) of screw pump group, respectively have inlet opening (3,17) in the above and below of two screw rods pump (4,6), neutral position has liquid outlet opening (13), and water conservancy diversion cover (14) is welded on the housing (16) of screw pump group, and middle liquid outlet opening (13) and the inlet opening on the oil pipe (15) are linked up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01228116 CN2528976Y (en) | 2001-06-17 | 2001-06-17 | Underground screw pump driven by oil-submersible D.C. Dynamo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01228116 CN2528976Y (en) | 2001-06-17 | 2001-06-17 | Underground screw pump driven by oil-submersible D.C. Dynamo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2528976Y true CN2528976Y (en) | 2003-01-01 |
Family
ID=33643338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01228116 Expired - Fee Related CN2528976Y (en) | 2001-06-17 | 2001-06-17 | Underground screw pump driven by oil-submersible D.C. Dynamo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2528976Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113073961A (en) * | 2020-01-06 | 2021-07-06 | 中国石油天然气股份有限公司 | Oil pumping device and oil pumping method |
| CN116428286A (en) * | 2023-05-09 | 2023-07-14 | 武汉市恒信泰采油设备制造有限公司 | Submersible direct-drive screw pump universal joint transmission device |
-
2001
- 2001-06-17 CN CN 01228116 patent/CN2528976Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113073961A (en) * | 2020-01-06 | 2021-07-06 | 中国石油天然气股份有限公司 | Oil pumping device and oil pumping method |
| CN116428286A (en) * | 2023-05-09 | 2023-07-14 | 武汉市恒信泰采油设备制造有限公司 | Submersible direct-drive screw pump universal joint transmission device |
| CN116428286B (en) * | 2023-05-09 | 2023-10-27 | 武汉市恒信泰采油设备制造有限公司 | Submersible direct-drive screw pump universal joint transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |