CN100520063C - Interanimation reversing piston oil production machine set - Google Patents
Interanimation reversing piston oil production machine set Download PDFInfo
- Publication number
- CN100520063C CN100520063C CNB2007100115912A CN200710011591A CN100520063C CN 100520063 C CN100520063 C CN 100520063C CN B2007100115912 A CNB2007100115912 A CN B2007100115912A CN 200710011591 A CN200710011591 A CN 200710011591A CN 100520063 C CN100520063 C CN 100520063C
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- China
- Prior art keywords
- piston
- selector valve
- hydraulic pressure
- oil
- interanimation
- 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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Abstract
The invention relates to oil extraction machine with the commutating piston which includes the oil pipe, well pipe, the connector and the bottom end. The hydraulic pressure machine is set with upper and down pistons between which is the connecting pole; the two ends of the hydraulic pressure machine are set with the exchange valve. The invention not only improves the using life but changing the power direction continuously by acting the two valves. So it has the compact structure.
Description
Technical field
The present invention relates to a kind of hydraulic seal formula oil production system, relate in particular to a kind of interanimation reversing piston oil production unit, belong to rodless pump oil recovery technique category.
Background technique
Beam pumping unit commonly used is because of one way work, and efficient only is (25-30) %.Viscosity increases when rising for solving crude oil (particularly viscous crude), and the glutinous facility that falls that the oil pipe appearance is provided with consumes a large amount of electric energy, and mechanical transmission has bigger friction, falls glutinous facility and is operated in moist nonventilated down-hole, and machinery, electrical equipment accident are more.
In recent years the swing type oil production system of Chu Xianing, the unit complexity, the wire oscillating vane can't install cleaning oil-sand device additional, makes unit durability impaired.In addition, the hydraulic piston type oil pumping system reverse flow technique is comparatively complicated, and single application hydraulic oil does conductive medium, applies being restricted.
Summary of the invention
The present invention is directed to the problem that beam pumping unit and hydraulic oil producing system exist in the above-mentioned prior art, a kind of interanimation reversing piston oil production unit is provided, solved the problem that machinery of the prior art, electrical equipment accident are more, working life is short, and simplified device structure, unit working life and flexible and convenient operation have been improved.
To achieve these goals, technological scheme of the present invention is as follows:
Comprise oil pipe, well casing, connector and bottom head, the setting of hydraulic pressure unit is two pistons up and down, between two pistons connecting rod are set; The two ends of hydraulic pressure unit are provided with selector valve respectively.
Be provided with spacer between two pistons about described.
Described piston two ends are separately installed with lip-type packing as strike-ofing device.
Be equipped with one-way valve on described connector and the bottom head.
The arranged outside reversing cover of described selector valve.
Advantageous effect of the present invention is as follows:
1, adopts hydraulic transmission, avoided the mechanical friction of oil recovery process, reduce energy consumption.
2, owing to two pistons about being provided with, thereby form two power cavities outside, two oil recovery chambeies are interior, and the volume that piston rod occupies can form the volume ratio (or pressure ratio) in power cavity and oil recovery chamber.
3, by reversing cover, selector valve are set, the moving direction of piston is that two selector valves of available mutual control are controlled.Selector valve is also controlled the output and the input of two power cavity power fluids simultaneously.When terminal point is arrived in piston motion, selector valve is bumped against the commutation position that changes oil circuit.And two selector valves program in accordance with regulations excite mutually, and commutation allows oil circuit simplify most accurately.
4, because piston is provided with lip-type packing as strike-ofing device,, guaranteed the working surface cleaning, improved service life of equipment so strengthened sealing effect.
5, piston is a power transmitting deice, also is that crude oil promotes facility; The automatic compensating piston wearing and tearing of piston ring help keeping sealing, increase work efficiency.
6, profit all can be used as driving medium, and is simple and reasonable, thus not only provide cost savings, and easy-to-operat.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further specified.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is another cross-sectional view of the present invention.
Among the figure, 1, the bottom head, 2, one-way valve, 3, following reversing cover, 4, selector valve down, 5, the lip circle, 6, locking nut, 7, following cylinder sleeve, 8, spacer, 9, piston rod, 10, piston, 11, locking nut, 12, go up cylinder sleeve, 13, go up reversing cover, 14, go up selector valve, 15, one-way valve, 16, connector holder.
Embodiment
Below in conjunction with accompanying drawing, by specific embodiment, it is as follows to describe the present invention, but protection scope of the present invention is not limited by specific embodiment.
Embodiment
As Figure 1-3, comprise power oil pipe and weary oil pipe, well casing, connector 16 and bottom 1, be equipped with on connector 16 and the bottom 1 controlling party to one-way valve (16,2); The setting of hydraulic pressure unit is provided with connecting rod 9 and spacer 8 between 10, two pistons 10 of two pistons up and down; Piston 10 two ends are separately installed with lip-type packing 5 as strike-ofing device, and the piston middle part is provided with piston ring; The two ends of hydraulic pressure unit are provided with selector valve (14,4) respectively, the arranged outside reversing cover of selector valve (13,3).Two selector valves have mutually sharp function, and promptly one of them selector valve is pushed back valve pocket, changes original oil circuit, must excite another selector valve to change the position, make it stretch out valve pocket, block oil circuit towards cylinder body, the selector valve that is pushed back valve pocket then conducting the path of power fluid.The power fluid that excites selector valve to stretch out has guaranteed selector valve invariant position at work, can not slide and move back; Every is swashed oil circuit mutually all for led to the end face of another selector valve by a selector valve.
Working procedure of the present invention is as follows:
The power fluid pipe of power fluid in system imported this unit, and be descending through the power fluid duct that connector holder 16 goes near periphery, by shutoff, continues to come downwards to down reversing cover 3 when last selector valve 14, and power fluid enters the lower piston chamber and promotes lower piston 10 risings; Another strand power fluid rises to selector valve 14 upper ends, selector valve 14 downward shutoff power fluid ports and keep its position in the promotion.
Because power fluid promotes piston stroking upward, the crude oil above the lower piston 10 in the chamber is extruded, and promotes by last one-way valve 15 through the left side oil circuit.The cavity of resorption of last cylinder sleeve 12 is owing to piston 10 up formation vacuum suck crude oil.Following one-way valve 2 blocks the crude oil route of retreat.Power fluid in the epicoele of last cylinder sleeve 12 is extruded, and enters the lean liquor pipeline through the oil circuit of last reversing cover 13.
Up piston rod 9 forces the selector valve withdrawal, the power fluid pressurized of last selector valve 14 upper ends lower piston 10 cavity of resorptions that flow backwards back, after the power fluid import was opened in last selector valve 14 displacements, the piston commutation was advanced, and selector valve 4 is blocked the power fluid import under the power fluid while jack-up.
Claims (1)
1, a kind of interanimation reversing piston oil production hydraulic pressure unit comprises oil pipe, well casing, connector (16) and bottom head (1), it is characterized in that: the setting of hydraulic pressure unit is two pistons (10) up and down, and connecting rod (9) is set between two pistons (10); The two ends of hydraulic pressure unit are provided with selector valve (14,4) respectively; Be provided with spacer (8) between two pistons (10) about described; Described piston (10) two ends are separately installed with lip-type packing (5) as strike-ofing device; Be equipped with one-way valve (15,2) on described connector (16) and the bottom head (1); The arranged outside reversing cover (13,3) of described selector valve (14,4); Described selector valve (14,4) and one-way valve (15,2) are two up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100115912A CN100520063C (en) | 2007-06-07 | 2007-06-07 | Interanimation reversing piston oil production machine set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100115912A CN100520063C (en) | 2007-06-07 | 2007-06-07 | Interanimation reversing piston oil production machine set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101067414A CN101067414A (en) | 2007-11-07 |
| CN100520063C true CN100520063C (en) | 2009-07-29 |
Family
ID=38880070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100115912A Expired - Fee Related CN100520063C (en) | 2007-06-07 | 2007-06-07 | Interanimation reversing piston oil production machine set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100520063C (en) |
-
2007
- 2007-06-07 CN CNB2007100115912A patent/CN100520063C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101067414A (en) | 2007-11-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20090729 Termination date: 20150607 |
|
| EXPY | Termination of patent right or utility model |