CN2418272Y - Feed back hydraulic potentiating device for oil-pumping pump - Google Patents
Feed back hydraulic potentiating device for oil-pumping pump Download PDFInfo
- Publication number
- CN2418272Y CN2418272Y CN 00231741 CN00231741U CN2418272Y CN 2418272 Y CN2418272 Y CN 2418272Y CN 00231741 CN00231741 CN 00231741 CN 00231741 U CN00231741 U CN 00231741U CN 2418272 Y CN2418272 Y CN 2418272Y
- Authority
- CN
- China
- Prior art keywords
- spring
- plunger
- fluid cylinder
- oil well
- well 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
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to an auxiliary device for a downhole oil producing pump, which is composed of an outer housing, a spring and a spring seat. The utility model is characterized in that the spring seat is installed at the lower end of a liquid cylinder which is installed at the lower end of the outer housing, and a through hole is arranged on the liquid cylinder. The liquid cylinder and the upper end of the outer housing are respectively installed on upper joints, and plungers with different diameters are installed in the liquid cylinder, and are sheathed on the spring. The upper ends of the plungers with different diameters are provided with valve covers, and through holes are arranged on the upper joints. The utility model has the advantages that the utility model can improve the full coefficient of an oil pump, the service life is prolonged, and the pump inspection period is prolonged.
Description
The utility model relates to a kind of auxiliary device of down-hole oil production pump.
In the sucker-rod pumping well, because the effusion or the other factors of solution gas, pump efficiency is very low usually.In order to improve pump efficiency, utility model patent CN91227181.7 has proposed a kind of charge pressure of oil well pump and device of filling index of increasing, though this device also can improve the filling index of oil well pump to a certain extent, increase output, but because it adopts the structure of push rod and ring taps valve, have to use soft sealing material, produce friction and wear, be restricted its working life, lives toward not satisfying the more and more longer needs of pump detection period.
The purpose of this utility model is a kind of oil well pump feedback of design fluid power synergistic device, can guarantee oil well pump under the situation of efficient high yield, long-term normal operation.
Technical solution of the present utility model is to realize like this, a kind of oil well pump feedback fluid power synergistic device, constitute by shell, spring, spring seat, spring seat is installed in outer bright lower end, spring mounts elastically, and its special way is: (1) spring seat is installed in the fluid cylinder lower end, and fluid cylinder is installed in the shell lower end by screw thread, seal ring all is housed between them, has through hole on the fluid cylinder; (2) fluid cylinder and shell upper end is installed in the upper connection by screw thread respectively, and seal ring all is housed between them; (3) the reducing plunger is installed in the fluid cylinder, is enclosed within on the spring, and reducing plunger upper end is equipped with plunger valve cover by screw thread, in the plunger valve cover plunger valve ball is housed; (4) has through hole in the upper connection.
In above-mentioned technical solution, its special way is that also spring is made up of the short spring of 3-6 joint, is linked together by spring connector.
In above-mentioned technical solution, its special way is that also the upper and lower of reducing plunger is separately installed with seal ring.
In above-mentioned technical solution, its special way also is to have anti-sand launder on the reducing plunger.
The utility model has the advantages that: (1) uses the utility model can improve the filling index of pump, improves oil well yield.(2) the utility model adopted various valve balls and valve seat all adopt standarized component, and sealing is reliable, long service life.(3) use the reducing plunger to transmit pressure, plunger is sturdy and durable, can increase the service life.
Accompanying drawing 1 is a cross-sectional view of the present utility model.
Be described further (embodiment) below in conjunction with accompanying drawing:
Plunger valve ball 10 is contained in the plunger valve cover 9, plunger valve cover 9 is bound up by screw thread and reducing plunger 15, be contained in the fluid cylinder 13, between the bottom of reducing plunger 15 and top and the fluid cylinder 13 for being slidingly matched, the lower diameter maximum of reducing plunger, upper diameter is than the little 1-2 millimeter of lower diameter, middle part diameter minimum, make between diameter place, middle part and the fluid cylinder to have the 1-3 mm clearance, the length of reducing plunger is greater than its up and down distance.For easy to process, also can adopt movingly between the top and the bottom of reducing plunger 15 and the fluid cylinder 13, on reducing plunger 15, process seal groove, " O " RunddichtringO is installed.On reducing plunger 15, also be processed with anti-sand launder.The through hole 16 that to have 4 diameters on the fluid cylinder 13 be the 4-8 millimeter makes through hole 16 be in reducing plunger medium position after the installation.Spring 14 is formed by connecting by spring connector 17 by the short spring of 4 joints, is contained in the reducing plunger 15, and be drive fit between spring connector 17 and the spring 14.Spring seat 18 is bound up by the lower end of screw thread and fluid cylinder 13, the upper end of fluid cylinder 13 is bound up by screw thread and upper connection 5, the upper and lower end of fluid cylinder 13 is equipped with " O " RunddichtringO respectively, makes and reaches sealing between fluid cylinder 13 and the upper connection 5 between spring seat 18 and the fluid cylinder 13.Fluid cylinder 13 is divided into two-part up and down, and upper diameter is less, matches with the top of reducing plunger 15, and lower diameter is bigger, matches with the bottom of reducing plunger 15.For easy to process, two-part up and down of fluid cylinder 13 also can make two, are docking together.Outer bright 11 upper and lower end connects with upper connection 5, fluid cylinder 13 respectively mutually by screw thread, and " O " RunddichtringO is housed between them, has 3-8 mm clearance 12 between shell 11 and the fluid cylinder 13.The through hole 6 that has 4 6-10 millimeters in the upper connection 5 is equipped with standing valve cover 7 and standing valve ball 8 in the upper connection 5, upper connection 5 links together by screw thread and pump barrel 4, and sucker rod 1, pump piston 2 and travelling valve ball 3 are housed in the pump barrel 4.
When pump plunger 2 was descending, the liquid stream in the pump barrel 4 fed back in the fluid cylinder 13 by the gap 12 between the through hole in the upper connection 56, shell 11 and the fluid cylinder 13, through hole 16 on the fluid cylinder, and promotion reducing plunger 15 is descending, pressure spring 14.When pump plunger 2 was up, the pressure of plunger valve cover 9 tops reduced, spring 14 bounce-backs, and the liquid that promotes plunger valve cover top is up, to pump barrel 4 internal-filling liquids, makes pump keep higher malleation suction, to guarantee to improve the degree of filling of oil pump by standing valve.
Claims (7)
1. an oil well pump feeds back the fluid power synergistic device, and by shell (11), spring (14), spring seat formations such as (18), spring seat (18) is installed in shell (11) lower end, and spring (14) is installed on the spring seat (18), it is characterized in that:
1. spring seat (18) is installed in fluid cylinder (13) lower end, and fluid cylinder (13) is installed in shell (11) lower end by screw thread, and seal ring all is housed between them, has through hole (16) on the fluid cylinder (13);
2. fluid cylinder (13) and shell (11) upper end is installed in the upper connection (5) by screw thread respectively, and seal ring all is housed between them;
3. reducing plunger (15) is installed in the fluid cylinder (13), and is enclosed within on the spring (14), and reducing plunger (15) upper end is equipped with plunger valve cover (9) by screw thread, and plunger valve ball (10) is housed in the plunger valve cover (9);
4. has through hole (6) in the upper connection (5).
2. oil well pump feedback fluid power synergistic device according to claim 1, it is characterized in that: spring (14) is made up of the short spring of 3-6 joint, is linked together by spring connector (17).
3. oil well pump feedback fluid power synergistic device according to claim 1 is characterized in that reducing plunger (15) upper and lower is separately installed with seal ring.
4. oil well pump feedback fluid power synergistic device according to claim 1 is characterized in that the reducing plunger has anti-sand launder on (15).
5. oil well pump feedback fluid power synergistic device according to claim 2 is characterized in that reducing plunger (15) upper and lower is separately installed with seal ring.
6. the pump feedback fluid power synergistic device of taking out according to claim 2 is characterized in that the reducing plunger has anti-sand launder on (15).
7. oil well pump feedback fluid power synergistic device according to claim 3 is characterized in that the reducing plunger has anti-sand launder on (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00231741 CN2418272Y (en) | 2000-03-28 | 2000-03-28 | Feed back hydraulic potentiating device for oil-pumping pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00231741 CN2418272Y (en) | 2000-03-28 | 2000-03-28 | Feed back hydraulic potentiating device for oil-pumping pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2418272Y true CN2418272Y (en) | 2001-02-07 |
Family
ID=33594566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00231741 Expired - Fee Related CN2418272Y (en) | 2000-03-28 | 2000-03-28 | Feed back hydraulic potentiating device for oil-pumping pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2418272Y (en) |
-
2000
- 2000-03-28 CN CN 00231741 patent/CN2418272Y/en not_active Expired - Fee Related
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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 |