CN206668524U - Hydraulic piston pump - Google Patents
Hydraulic piston pump Download PDFInfo
- Publication number
- CN206668524U CN206668524U CN201720205338.XU CN201720205338U CN206668524U CN 206668524 U CN206668524 U CN 206668524U CN 201720205338 U CN201720205338 U CN 201720205338U CN 206668524 U CN206668524 U CN 206668524U
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- valve
- piston
- valve rod
- pump
- hydraulic piston
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Abstract
A kind of hydraulic piston pump is the utility model is related to, power fluid is provided by ground face-pumping, automatic reverse is realized in underground.Including baffle plate, pod apertures, annular channel, intercommunicating pore, valve seat, piston upper chamber, piston lumen, piston cavity of resorption, valve rod, valve rod erection device, sealing ring, support set, standing valve, inlet valve, drain.The direction valve position and principle of the hydraulic piston pump are different from traditional hydraulic piston pump reversal valve, and reversal valve is located at the upper end of pump.The cross-sectional sizes of valve rod diverse location are different, and valve rod Impact direction different band ovable valve stem moves up and down, and drive the change of direction valve position by the motion of valve rod, and then realize automatic reverse.Piston upper chamber and lumen are all transformation chambers, and mutation is not present in pressure change so that device commutation is steady, operational reliability is strong.Power fluid processing and maintenance cost are reduced using closed power fluid system, fluid erosion abrasion is reduced, long working life, is the ideal equipment that deep ＆ ultra-deep well recovers the oil.
Description
Technical field
The hydraulic piston pump of oil mining is the utility model is related to, belongs to oil Rodless oil extraction technical field.
Background technology
Hydraulic piston pump is an important branch of rodless pump, is a kind of important mechanical oil recovery means.True table
It is bright, do not replaced in some occasion hydraulic piston pumps.As oil reservoir depth is continuously increased, bottom hole temperature (BHT) is high, bottom pressure
Greatly, aqueous rising, viscosity increase, conventional oil production equipment become increasingly conspicuous with this unconformable problem.Hydraulic piston pump is due to efficiency
It is high（0.57—0.68）, in deep-well and ultradeep well, inclined shaft direction well, high-viscosity oil, high wax containing well all can Effec-tive Function, exist always
Critical role is occupied inside existing oil production equipment.
There is the application of several Rodless hydraulic oil pumping pump patents in recent years, but the deficiency of oneself be present.Application number
200710099747.7, the Rodless hydraulic oil pumping pump configuration is excessively complicated, and subsidiary component is excessive, and fault rate is higher, overall reliable
Property is inadequate.Application number 201210534633.1, the hydraulic piston pump reversal valve, although feasible in principle, due to commutation
Apparatus structure is equally extremely complex, there is very more sealing rings, and the requirement to processing and manufacturing assembling is all very high, pushes away on a large scale
Wide application is appointed so difficult.
The content of the invention
The utility model provides a kind of hydraulic piston pump of underground automatic reverse, and the pump has three independent transformation chambers, can
It is highly reliable to realize stable automatic reverse.
Provided by the utility model is closed power fluid system, and water and crude oil can be used as power fluid, reduce power fluid
Processing and maintenance cost, and reduce hydraulic motor part wears, extend the life-span.
The technical solution of the utility model is：A kind of hydraulic piston pump, it is characterised in that：Reversal valve end cap is in reversal valve valve
Body upper end, change valve and valve seat are connected and form dynamic sealing, there is sealing ring and the first connection on change valve
Hole, the first intercommunicating pore are connected with first flow, and annular channel is formed between change valve and valve seat, are support below valve seat
Set, there is the second intercommunicating pore on support set, the second intercommunicating pore connects with second flow channel, and support set lower end is support set, on support set
There is intercommunicating pore to form the 4th runner with the pump housing, baffle plate is fixedly connected with valve rod, and the pump there are three transformation chambers, and upper piston is
Reducing, stem movement to baffle plate during stroke end and reversal valve end cap drive change valve to move up and down, and realize and move certainly
To being equipped with valve rod erection device on valve rod, valve rod, which moves up and down, causes piston cavity of resorption cavity and pressure change, standing valve inlet valve
Drain is alternately closed and opened will the suction of production liquid and discharge piston cavity of resorption.
The hydraulic piston pump has three transformation chambers, piston upper chamber, piston lumen, piston cavity of resorption, and power fluid can only enter
Enter piston upper chamber and piston lumen, piston cavity of resorption is the cavity of independent lifting production liquid.
The hydraulic piston pump, piston upper chamber and piston lumen are separated by upper piston, and upper piston is transported up and down with valve rod
It is dynamic.
The hydraulic piston pump, upper piston are reducings, and upper part stem diameter is smaller, and end portion stem diameter becomes
Greatly, in piston down stroke, power fluid enters piston upper chamber and piston lumen simultaneously, due under the upper surface area ratio of upper piston
Face area is big, and valve rod is forced downwards, and valve rod is descending.
The hydraulic piston pump, valve rod erection device is housed on valve rod, prevents stem position skew, play, and valve rod
There is sealing ring 1 to prevent power fluid from entering piston cavity of resorption on erection device.
The hydraulic piston pump, baffle plate are fixed on valve rod, and in pump up stroke, baffle plate can promote change valve upward
Motion.
The hydraulic piston pump, standing valve are compact-sized directly over inlet valve.
The utility model belongs to Rodless oil extraction equipment, has solved the problems, such as eccentric wear present in bar oil production equipment, has avoided
The production accidents such as rod broken, using new reversing arrangement, mutation is not present in the change of transformation cavity pressure, and commutating speed is not present
Mutation, overall structure is simple and reliable, using closed power fluid system, reduces power fluid processing and maintenance cost, reduction are surged
Machine wears, life.
Brief description of the drawings
Structure sectional view when Fig. 1 is the utility model hydraulic piston pump up stroke.
Structure sectional view when Fig. 2 is the utility model hydraulic piston pump down stroke.
The structure sectional view of change valve when Fig. 3 is the utility model hydraulic piston pump up stroke.
Embodiment
The technical solution of the utility model is described specifically below in conjunction with the accompanying drawings：Referring initially to Fig. 1, reversal valve end cap 1 is changing
To the upper end of valve body 15, change valve 15 is connected with valve seat 5 and forms dynamic sealing, has sealing on change valve 15
The intercommunicating pore 4 of circle 24 and first, the first intercommunicating pore 4 are connected with first flow 6, and ring is formed between change valve 15 and valve seat 5
Shape runner 3, valve seat 5 are below support sets 26, there is the second intercommunicating pore 16, the second intercommunicating pore 16 and second flow channel 14 on support set 26
Connection, the lower end of support set 26 is support set 25, has intercommunicating pore to form the 4th runner 18, baffle plate 7 and valve with the pump housing on support set 25
Bar 13 is fixedly connected, and the pump has three transformation chambers, piston upper chamber body 8, piston lumen 10, piston cavity of resorption 12, is filled on valve rod 13
There is valve rod erection device 11, prevent the position of valve rod 13 from offseting play.
As shown in Fig. 3 and Fig. 1, circular conical surface is formed with valve seat 5 and sealed on the valve body of change valve 15 during up stroke, now
High voltage power liquid is entered the annular space of change valve 15, then entered by the intercommunicating pore of support set 25 by pod apertures 2
Enter the 4th runner 18, eventually arrive at piston lumen 10.Valve rod 13 is moved upwards in the presence of power fluid, and piston cavity of resorption 12 is formed
Negative pressure, now standing valve 20 and inlet valve 21 open, dump valve 22 is closed, production liquid enter piston cavity of resorption 12.Valve rod 13 continues
Motion upwards, the weary power fluid in piston upper chamber 8 is by first flow 6, by the first intercommunicating pore 4 of valve seat 5, by support
The intercommunicating pore of set 26, is discharged by second flow channel 14.When valve rod 13 moves upwards, baffle plate 7 moves upwards with valve rod, then keeps off
Plate 7 touches the lower end of change valve 15, and promotes change valve 15 to move upwards, when the upper end of change valve 15 and valve
When seat 5 has just departed from sealing, high voltage power liquid enters annular channel 3 and enters first flow 6 by the first intercommunicating pore 4, most
Enter piston upper chamber 8 afterwards, now valve rod 13 is slowed down by downward active force, the speed uplink of valve rod 13, until change valve
15 upper ends completely disengage sealing with valve seat 5, and now the valve body circular conical surface 29 of the lower end of change valve 15 is formed with valve seat 5 and sealed,
Valve rod 13 reaches upper extreme position, and it is zero that now the speed of valve rod 13, which slows down,.
As shown in Fig. 2 high voltage power liquid enters annular channel 3 and enters first by the first intercommunicating pore 4 during lower formation
Runner 6, piston upper chamber 8 is finally entered, now piston upper chamber 8 and piston lumen 10 have high voltage power liquid, due to piston upper chamber 8
The downward active area of the high voltage power liquid active area more upward than the high voltage power liquid of piston lumen 10 is big, and valve rod 13 is made downwards
Firmly, valve rod 13 starts descending.Weary power fluid in piston lumen 10 is by the 4th runner 18, the annular through change valve 15
Discharge in space.When valve rod 13 is descending, under pressure, standing valve 20 and inlet valve 21 are closed, and dump valve 22 is opened, production liquid warp
Third flow channel 17 is crossed to discharge.Until reversal valve end cap 1 acts on the upper end of change valve 15, move downward change valve 15
To lower limit position, hydraulic piston pump down stroke terminates.
The utility model is recovered the oil by rational hydraulic power to realize, has solved sucker rod existing for bar oil production equipment
Fracture, eccentric wear the problems such as, reduce the generation of production accident, have it is simple in construction, depth below is big, highly reliable, long lifespan
The advantages that.
It is described above to refer only to embodiment of the present utility model, and to those skilled in the art,
Do not depart under principle of the present utility model, some improvement done, should belong to the scope of protection of the utility model yet.
Claims (7)
- A kind of 1. hydraulic piston pump, it is characterised in that：Reversal valve end cap（1）In change valve（15）Upper end, change valve （15）With valve seat（5）It is connected and forms dynamic sealing, change valve（15）On have sealing ring 2（24）And first intercommunicating pore （4）, the first intercommunicating pore（4）With first flow（6）Connection, change valve（15）With valve seat（5）Between form annular channel （3）, valve seat（5）Here is support set 2（26）, support set 2（26）On have the second intercommunicating pore（16）, the second intercommunicating pore（16）With Two runners（14）Connection, support set 2（26）Lower end is support set 1（25）, support set 1（25）On there is intercommunicating pore and the pump housing to form the Four runners（18）, baffle plate（7）With valve rod（13）It is fixedly connected, the pump has three transformation chambers, and upper piston（9）It is reducing , valve rod（13）Baffle plate when moving to stroke end（7）With reversal valve end cap（1）Drive change valve（15）Move up and down, Realize automatic reverse, valve rod（13）It is upper that valve rod erection device is housed（11）, valve rod（13）Up and down motion causes piston cavity of resorption（12） Cavity and pressure change, standing valve（20）Inlet valve（21）Drain（22）Alternately close and open and the suction of production liquid and discharge are lived Fill in cavity of resorption（12）.
- 2. hydraulic piston pump as claimed in claim 1, it is characterised in that：The pump has three transformation chambers, piston upper chamber（8）, Piston lumen（10）, piston cavity of resorption（12）, power fluid can only enter piston upper chamber（8）With piston lumen（10）, piston cavity of resorption （12）It is the cavity of independent lifting production liquid.
- 3. hydraulic piston pump as claimed in claim 1, it is characterised in that：Piston upper chamber（8）With piston lumen（10）By upper Piston（9）Separate, upper piston（9）With valve rod（13）Move up and down.
- 4. hydraulic piston pump as claimed in claim 1, it is characterised in that：Upper piston（9）It is reducing, upper part valve rod （13）Diameter is smaller, end portion valve rod（13）Diameter becomes big, and in piston down stroke, power fluid enters piston upper chamber simultaneously （8）With piston lumen（10）, due to upper piston（9）Upper surface area it is bigger than lower surface area, valve rod（13）By downward Power, valve rod（13）It is descending.
- 5. hydraulic piston pump as claimed in claim 1, it is characterised in that：Valve rod（13）It is upper that valve rod erection device is housed（11）, Prevent valve rod（13）Position skew, play, and valve rod erection device（11）On have sealing ring 1（23）Prevent power fluid enters from living Fill in cavity of resorption（12）.
- 6. hydraulic piston pump as claimed in claim 1, it is characterised in that：Baffle plate（7）It is fixed on valve rod（13）On, it is up in pump Baffle plate during journey（7）Change valve can be promoted（15）Motion upwards.
- 7. hydraulic piston pump as claimed in claim 1, it is characterised in that：Standing valve（20）In inlet valve（21）Surface, knot Structure is compact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720205338.XU CN206668524U (en) | 2017-03-05 | 2017-03-05 | Hydraulic piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720205338.XU CN206668524U (en) | 2017-03-05 | 2017-03-05 | Hydraulic piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206668524U true CN206668524U (en) | 2017-11-24 |
Family
ID=60379817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720205338.XU Expired - Fee Related CN206668524U (en) | 2017-03-05 | 2017-03-05 | Hydraulic piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206668524U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019024428A1 (en) * | 2017-08-04 | 2019-02-07 | 崔迺林 | Reversing valve for hydraulic piston pump |
| CN109707586A (en) * | 2018-11-12 | 2019-05-03 | 李跃 | Auxiliary agent filling apparatus and method are realized using natural gas well oil jacket pressure difference |
| CN109973371A (en) * | 2019-05-13 | 2019-07-05 | 西南石油大学 | Tandem double acting injection-extraction pump for high-water-cut oil-producing well |
| CN113175422A (en) * | 2021-05-06 | 2021-07-27 | 上海雅燊电子技术有限公司 | Novel hydraulic metering pump and measuring method thereof |
-
2017
- 2017-03-05 CN CN201720205338.XU patent/CN206668524U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019024428A1 (en) * | 2017-08-04 | 2019-02-07 | 崔迺林 | Reversing valve for hydraulic piston pump |
| US10995587B2 (en) | 2017-08-04 | 2021-05-04 | Nailin CUI | Reversing valve for hydraulic piston pump |
| CN109707586A (en) * | 2018-11-12 | 2019-05-03 | 李跃 | Auxiliary agent filling apparatus and method are realized using natural gas well oil jacket pressure difference |
| CN109973371A (en) * | 2019-05-13 | 2019-07-05 | 西南石油大学 | Tandem double acting injection-extraction pump for high-water-cut oil-producing well |
| CN113175422A (en) * | 2021-05-06 | 2021-07-27 | 上海雅燊电子技术有限公司 | Novel hydraulic metering pump and measuring method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20180305 |
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| CF01 | Termination of patent right due to non-payment of annual fee |