CN201057138Y - Special oil pump of linear electric motor - Google Patents
Special oil pump of linear electric motor Download PDFInfo
- Publication number
- CN201057138Y CN201057138Y CNU2007200205774U CN200720020577U CN201057138Y CN 201057138 Y CN201057138 Y CN 201057138Y CN U2007200205774 U CNU2007200205774 U CN U2007200205774U CN 200720020577 U CN200720020577 U CN 200720020577U CN 201057138 Y CN201057138 Y CN 201057138Y
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- Prior art keywords
- valve
- joint
- valve seat
- pump
- seat
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- Expired - Fee Related
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Abstract
The utility model provides a special oil well pump for linear motor, comprising an upper joint, a shell, an upper pump barrel, an upper plunger, a valve cover, a valve ball, a valve seat, a valve seat joint, a collar, a lower pump barrel, a middle valve cover, a fuel delivery joint, a middle valve seat A, a middle valve seat, a middle valve seat joint, a lower plunger, a lower valve seat, a lower valve seat joint, a joint, a pump seat and a pull bar. The outer lower end of the upper joint is connected with the shell and the pump seat and the inner lower part of the upper joint is connected with the valve cover, the valve seat, the valve seat joint, the upper plunger, the middle valve cover, the fuel delivery joint, the middle valve cover, the middle valve seat, the middle valve seat joint, the lower plunger, the lower valve cover and the lower valve seat joint in sequence; the lower end of the joint is connected with the pull rod and the upper end is connected with the lower pump barrel, the collar and the upper pump barrel in sequence. The utility model is characterized by stable system working characteristics, reasonable mechanical characteristics of the pull rod, long service life, etc. and can be widely applied to oil production technology.
Description
One, technical field
The utility model relates to oil well pump, the special-purpose oil well pump of particularly a kind of linear electric motor.
Two, background technique
Traditional and the matching used oil well pump of linear electric motor, its pull bar is on the top of pump, the motion of pump barrel non-movable piston, up oil suction, descending oil extraction, for the development of oil field oil production technology technology is being done to contribute, but it also exists following shortcoming or deficiency simultaneously: the 1. poor stability of pull bar, and mechanical characteristic is good inadequately; 2. the system works performance of pump and motor is reasonable inadequately; 3. working life is short.(asking the claimant to increase some shortcomings or deficiency more herein)
Three, summary of the invention
The purpose of this utility model provides the special-purpose oil well pump of a kind of linear electric motor, adopts installation linear electric motor under the pump, and plunger is fixed, and the structure of pump barrel motion is improved the service behaviour of system effectively, improves the mechanical characteristic of pull bar, increases the service life; The shortcoming or the deficiency that overcome effectively or avoid above-mentioned prior art to exist.
The special-purpose oil well pump of linear electric motor described in the utility model, comprise upper connection, housing, last pump barrel, upper plug, valve bonnet, valve ball, valve seat, valve base joint, box cupling, following pump barrel, middle valve bonnet, delivery connection, middle valve bonnet A, middle valve seat, middle valve base joint, lower plunger, following valve bonnet, the lower valve base joint, connecting head, pump seat and push rod, described upper connection outer lower end is connected with pump seat with housing successively, be connected with valve bonnet in the upper connection down in turn, valve seat, valve base joint, upper plug, middle valve bonnet, delivery connection, middle valve bonnet, middle valve seat, middle valve base joint, lower plunger, following valve bonnet, the lower valve base joint, described connecting head lower end is connected with push rod, the upper end successively with following pump barrel, box cupling is connected with last pump barrel.
Wherein, described connecting head is provided with the inclination overcurrent duct that is communicated with lower plunger, upper plug inner chamber and lower housing portion inner chamber.Described upper plug seals mutually with last pump barrel, lower plunger and following pump barrel.Described box cupling and connecting head and housing are for being slidingly matched.
The utility model has following advantage compared with prior art:
1, owing to adopted plunger to fix, the structure of pump barrel motion is improved the system works performance, makes it more be tending towards reasonable.
2, adopt the combination of connection linear electric motor under the pump, improve the mechanical characteristic of pull bar, increase the working stability of pull bar, prolong its working life, reduce cost.(asking the claimant to increase some advantages more herein)
Four, description of drawings
Accompanying drawing is a kind of structural representation of the present utility model.
Five, embodiment
Consult accompanying drawing, the special-purpose oil well pump of a kind of linear electric motor, comprise upper connection 1, housing 2, last pump barrel 8, upper plug 7, valve bonnet 3, valve ball 4, valve seat 5, valve base joint 6, box cupling 9, following pump barrel 10, middle valve bonnet 11, delivery connection 12, middle valve bonnet A13, middle valve seat 15, middle valve base joint 16, lower plunger 17, following valve bonnet 18, lower valve base joint 19, connecting head 20, pump seat 21 and push rod 14, upper connection 1 outer lower end is connected with pump seat 21 with housing 2 successively, be connected with valve bonnet 3 in the upper connection down in turn, valve seat 5, valve base joint 6, upper plug 7, middle valve bonnet 11, delivery connection 12, middle valve bonnet A13, middle valve seat 15, middle valve base joint 16, lower plunger 17, following valve bonnet 18, lower valve base joint 19, connecting head 20 lower ends are connected with push rod 22, the upper end successively with following pump barrel 10, box cupling 9 is connected with last pump barrel 8.
Connecting head 20 is provided with the inclination overcurrent duct that is communicated with lower plunger 17, upper plug 7 inner chambers and housing 2 lower lumen.Upper plug 7 seals with following pump barrel 10 mutually with last pump barrel 8, lower plunger 17.Box cupling 9 and connecting head 20 and housing 2 are for being slidingly matched.Housing 2 is connected with pump seat 21.In valve bonnet 3, middle valve bonnet 11, middle valve bonnet A13 and the following valve bonnet 18 valve ball 3 is installed.
Claims (4)
1. the special-purpose oil well pump of linear electric motor, comprise upper connection, housing, last pump barrel, upper plug, valve bonnet, valve ball, valve seat, valve base joint, box cupling, following pump barrel, middle valve bonnet, delivery connection, middle valve bonnet A, middle valve seat, middle valve base joint, lower plunger, following valve bonnet, the lower valve base joint, connecting head, pump seat and push rod, it is characterized in that described upper connection outer lower end is connected with pump seat with housing successively, be connected with valve bonnet in the upper connection down in turn, valve seat, valve base joint, upper plug, middle valve bonnet, delivery connection, middle valve bonnet, middle valve seat, middle valve base joint, lower plunger, following valve bonnet, the lower valve base joint, described connecting head lower end is connected with push rod, the upper end successively with following pump barrel, box cupling is connected with last pump barrel.
2. the special-purpose oil well pump of linear electric motor according to claim 1 is characterized in that described connecting head is provided with the inclination overcurrent duct that is communicated with lower plunger, upper plug inner chamber and lower housing portion inner chamber.
3. the special-purpose oil well pump of linear electric motor according to claim 1 is characterized in that described upper plug seals mutually with last pump barrel, lower plunger and following pump barrel.
4. the special-purpose oil well pump of linear electric motor according to claim 1 is characterized in that described box cupling and connecting head and housing are for being slidingly matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200205774U CN201057138Y (en) | 2007-04-10 | 2007-04-10 | Special oil pump of linear electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200205774U CN201057138Y (en) | 2007-04-10 | 2007-04-10 | Special oil pump of linear electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057138Y true CN201057138Y (en) | 2008-05-07 |
Family
ID=39425980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200205774U Expired - Fee Related CN201057138Y (en) | 2007-04-10 | 2007-04-10 | Special oil pump of linear electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201057138Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720663A (en) * | 2012-05-31 | 2012-10-10 | 常州市冠腾石油装备有限公司 | Special oil-well pump for multifunctional submersible linear motor |
| CN103939056A (en) * | 2014-04-09 | 2014-07-23 | 中国石油天然气股份有限公司 | Oil extraction system of oil well pump and submersible linear motor well and working method thereof |
-
2007
- 2007-04-10 CN CNU2007200205774U patent/CN201057138Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720663A (en) * | 2012-05-31 | 2012-10-10 | 常州市冠腾石油装备有限公司 | Special oil-well pump for multifunctional submersible linear motor |
| CN103939056A (en) * | 2014-04-09 | 2014-07-23 | 中国石油天然气股份有限公司 | Oil extraction system of oil well pump and submersible linear motor well and working method thereof |
| CN103939056B (en) * | 2014-04-09 | 2016-01-06 | 中国石油天然气股份有限公司 | Oil extraction system of oil well pump and submersible linear motor well and working 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: 20080507 |