CN201908815U - Two-way plunger hydraulic oil well pump - Google Patents
Two-way plunger hydraulic oil well pump Download PDFInfo
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- CN201908815U CN201908815U CN2011200144940U CN201120014494U CN201908815U CN 201908815 U CN201908815 U CN 201908815U CN 2011200144940 U CN2011200144940 U CN 2011200144940U CN 201120014494 U CN201120014494 U CN 201120014494U CN 201908815 U CN201908815 U CN 201908815U
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- pump
- thrust oil
- oil
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Abstract
The utility model discloses a two-way plunger hydraulic oil well pump, which comprises a pump body, a reversing valve is mounted in the pump body, a hollow pump core is mounted in the reversing valve, a piston is arranged on the middle part of the hollow pump core, a lower plunger is arranged on the lower end of the hollow pump core, a first check valve is arranged in the lower end of the lower plunger, an upward travel thrust oil passage, a downward travel thrust oil passage, a thrust oil inlet passage and a thrust oil return passage are arranged in the pump body, the middle part of the pump body is provided with a push cavity, the piston on the middle part of the hollow pump core is arranged in the push cavity, the lower end of the push cavity is communicated with the upward travel thrust oil passage, and the lower end of the push cavity is communicated with the downward travel thrust oil passage. The reversing vale can move along the central axial line of the pump body, and as the reversing valve moves, the connection relations between the upward travel thrust oil passage, the downward travel thrust oil passage, the thrust oil inlet passage and the thrust oil return passage are switched, so that the hollow pump core can move up and down. The two-way plunger hydraulic oil well pump has the advantages of simple structure, high oil production efficiency, low energy consumption, stable operating state, long service life and the like.
Description
Technical field
The utility model relates to oil recovery field, oil field, especially a kind of bidirectional ram hydraulic well pump.
Background technique
In oil recovery field, oil field, oil extraction pump is important oil recovery well lifting equipment.Oil extraction pump divides plunger pump, screw pump, submersible electric pump and reciprocating submersible electric pump.These adopt pumps all because there is the low and high problem of energy consumption of pumping efficiency in reasons in structure, cause that cost for oil production increases, the reduction of oil recovery well benefit.And there is short problem in working life in these oil extraction pumps because complex structure very easily damages.
The model utility content
Problem at the prior art existence, the utility model bidirectional ram hydraulic well pump, comprise the pump housing, be set with selector valve in it, be set with hollow pump core in the selector valve, the middle part of this hollow pump core is provided with piston, the bottom of hollow pump core is a lower plunger, hollow pump in-core is provided with first one-way valve, wherein, be provided with up stroke thrust oil passage in the pump housing, down stroke thrust oil passage, thrust oil return flow line, the middle part of the pump housing is provided with passes the chamber, and the piston at hollow pump core middle part is arranged on to be passed in the chamber, and the lower end of passing the chamber communicates with described up stroke thrust oil passage, the upper end of passing the chamber communicates with described down stroke thrust oil passage; Selector valve can move along pump housing central axis, and moves with it, and the annexation between up stroke thrust oil passage, down stroke thrust oil passage and the thrust oil return flow line is switched, and realizes the uplink and downlink of hollow pump core.
Further, the lower end of the described pump housing is provided with the oil pumping chamber, the upper end is provided with out oil pocket, the port in oil pumping chamber is provided with second one-way valve, the lower end in the hollow Oil Guide chamber of described hollow pump in-core communicates with described oil pumping chamber, the upper end in hollow Oil Guide chamber goes out oil pocket and communicates with described, described lower plunger is arranged in the oil pumping chamber, described hollow pump core upper end is provided with upper plug, and described upper plug is arranged in oil pocket, and described hollow pump core is all upwards oil extractions in up stroke and down stroke.
Further, described lower plunger cross-sectional area is 2 times of upper plug cross-sectional area, and the oil drain quantity in two strokes is identical.
Further, the upper and lower end of described selector valve is respectively arranged with the upper spring pre-tightening apparatus, the lower spring pre-tightening apparatus, described hollow pump core upper and lower is respectively arranged with top fastening station and low fastening station, the upper end of upper spring pre-tightening apparatus is resisted against on the top fastening station, the lower end abutment of lower spring pre-tightening apparatus is on low fastening station, the lower surface of described selector valve is provided with up stroke locating slot and down stroke locating slot, also be provided with the location ball between the bottom of described selector valve and the described pump housing, cooperate with the location of two locating slots by the location ball and realize that described selector valve moves up and down the location of position.
Further, the described pump housing is provided with the mounting hole of described location ball, also is provided with holddown spring between the roof of this mounting hole and the described location ball.
Further, the upper end of the described pump housing is provided with thrust oil inlet opening, refluxing opening and well liquid exhaust port, and described thrust oil return flow line communicates with described refluxing opening.
Further, the barrel in described oil pumping chamber is provided with equalizing orifice.
Further, described thrust oil return flow line comprises up stroke thrust oil return flow line, down stroke thrust oil return flow line, the bottom of described up stroke thrust oil passage overlaps with the bottom of down stroke thrust oil return flow line, and the top of described down stroke thrust oil passage overlaps with the top of up stroke thrust oil return flow line.
The utility model bidirectional ram hydraulic well pump adopts hydraulically powered form to drive oil extraction pump work, has simple in structurely, and oil recovery efficiency height, energy consumption are low, stable working state, advantages such as long service life.
Description of drawings
Fig. 1 is the utility model user mode one structural representation;
Fig. 2 is the utility model user mode two structural representations.
Embodiment
As shown in Figure 1, the utility model bidirectional ram hydraulic well pump, comprise the pump housing 1, be set with selector valve 2 in the pump housing 1, be set with hollow pump core 4 in the selector valve 2, the middle part of hollow pump core 4 is provided with piston 8, the piston lower end is provided with lower plunger 5, the upper end is provided with upper plug 19, be provided with first one-way valve 9 in lower plunger 5 lower ends, wherein, the lower end of the pump housing 1 is provided with oil pumping chamber 13, the upper end is provided with out oil pocket 14, the port in oil pumping chamber 13 is provided with second one-way valve 15, is provided with hollow Oil Guide chamber 16 in the hollow pump core 4, and the lower end in hollow Oil Guide chamber 16 communicates with lower plunger 5, the upper end in hollow Oil Guide chamber 16 communicates with upper plug 19, comes upwards oil extraction by plunger upward and downward up and down in the utility model.
Be provided with up stroke thrust oil passage 11 and down stroke thrust oil passage 12 in the pump housing 1, the middle part of the pump housing 1 is provided with passes chamber 10, the middle part of hollow pump core 4 is provided with piston 8, piston 8 is arranged on to be passed in the chamber 10, the lower end of passing chamber 10 communicates with down stroke thrust oil passage 12 with the upper end that up stroke thrust oil passage 11 communicated, passed chamber 10, by the bottom to passing chamber 10 be pressed into thrust oil promote piston 8 move upward, with the upstroke of realization hollow pump core 4; By be pressed into to the top of passing chamber 10 thrust oil promote piston 8 move downward, to realize the downward movement of hollow pump core 4.Wherein, come conducting up stroke thrust oil passage 11, down stroke thrust oil passage 12 respectively,, promote upper plug 19 and lower plunger 5 and move up and down to finish oil pumping, oil extraction stroke with control thrust oil stroke by moving up and down of selector valve 2.
The upper and lower end of selector valve 2 is respectively arranged with upper spring pre-tightening apparatus 7, lower spring pre-tightening apparatus 6, the lower surface of selector valve 2 is provided with up stroke locating slot 17 and down stroke locating slot 18, also be provided with location ball 20 between the bottom of selector valve 2 and the pump housing 1, the pump housing 1 is provided with the mounting hole of location ball 20, also be provided with the holddown spring (not shown) between the roof of mounting hole and the location ball 20, this holddown spring is pressed on the lower surface of selector valve 2 location ball 20, cooperates with the location of two locating slots by location ball 20 and realizes that selector valve 2 moves up and down the location of position.Hollow pump core 4 tops are provided with top fastening station 21, the bottom is provided with low fastening station 22, the upper end of upper spring pre-tightening apparatus 7 is resisted against on the top fastening station 21, the lower end abutment of lower spring pre-tightening apparatus 6 is on low fastening station 22, can compress spring in the upper spring pre-tightening apparatus 7 by top fastening station 21 when hollow pump core 4 moves downward, can compress spring in the lower spring pre-tightening apparatus 6 by low fastening station 22 when hollow pump core 4 moves upward.
The upper end of the pump housing 1 is provided with thrust oil inlet opening 23, refluxing opening 24 and well liquid exhaust port 25.Thrust oil inlet opening 23 communicates with up stroke thrust oil passage 11 and down stroke thrust oil passage 12; Going out oil pocket 14 communicates with well liquid exhaust port 25; Also be provided with thrust oil return flow line 24 between the pump housing 1 and the selector valve 2, selector valve 2 is by moving up and down conducting up stroke thrust oil passage 11, down stroke thrust oil passage 12 respectively, the both corresponding thrust oil of conducting simultaneously return flow lines 24, when moving, pass the backflow of thrust oil in the chamber 10 to finish piston 8.Thrust oil return flow line 24 comprises up stroke thrust oil return flow line, down stroke thrust oil return flow line (being mark among the figure), the bottom of up stroke thrust oil passage 11 overlaps with the bottom of down stroke thrust oil return flow line, and the top of down stroke thrust oil passage 12 overlaps with the top of up stroke thrust oil return flow line.
When moving up and down for balance lower plunger 5, the external and internal pressure in oil pumping chamber 13, the barrel in oil pumping chamber 13 is provided with equalizing orifice 27.
Critical state diagram when Figure 1 shows that piston 8 in the utility model bidirectional ram hydraulic well pump down stroke moving to bottom in oil pumping chamber 10, down stroke thrust oil passage 12 is on state in this state.In this down stroke, by the inside input thrust oil in thrust oil inlet opening 23, thrust oil enters into the top of passing chamber 10 through down stroke thrust oil passage 12, thrust oil promote piston 8 move downward, to realize the downward movement of hollow pump core 4.End thrust oil is done the time spent under piston, piston 8 moves upward, and lower plunger 5 also moves upward, this moment first one-way valve 9 close, second one-way valve 15 all opens, well liquid will flow in the oil pumping chamber 13 by second one-way valve 15, and the well liquid that while upper plug 19 will go out in the oil pocket 14 are upwards discharged.End thrust oil is done the time spent on piston, and lower plunger 5 moves downward, and oil pumping half well liquid in the chamber will move up to out in the oil pocket 14 by hollow Oil Guide chamber 16, outer exhaust port 22 discharges of excavationg pump that make progress of second half well liquid.
When state shown in Fig. 1, under the effect of top fastening station 21, upper spring pre-tightening apparatus 7 is in the stressed state of pretension gradually, at this moment, location ball 20 still is in the up stroke locating slot 17, when further being pressed into thrust oil again, upper spring pre-tightening apparatus 7 spring stress strengthen gradually, when the thrust of its pretightening force or spring housing 26 during greater than the detent force between location ball 20 and the up stroke locating slot 17, location ball 20 will upwards rise to surmount up stroke locating slot 17, under the promotion of the initial tension of spring of upper spring pre-tightening apparatus 7, selector valve 2 continues to move downward, block until location ball 20 and down stroke locating slot 18 location, enter phase diagram shown in Figure 2 this moment.
Figure 2 shows that the phase diagram of piston 8 beginning up stroke motion in oil pumping chamber 10 in the utility model bidirectional ram hydraulic well pump, up stroke thrust oil passage 11 is on state in this state.
In this up stroke, by the inside input thrust oil in thrust oil inlet opening 23, thrust oil enters into the bottom of passing chamber 10 through selector valve, up stroke thrust oil passage 11, thrust oil promote piston 8 move upward, to realize the upstroke of hollow pump core 4.During hollow pump core 4 upstrokes, lower plunger 5 also moves upward, this moment first one-way valve 9 close, second one-way valve 15 all opens, well liquid will flow into oil pumping chambeies 13 by second one-way valve 15, with preparation oil extraction next time, simultaneously.Because first one-way valve 9 is closed, hollow Oil Guide chamber 16, go out to form a cavity that has only the upper end that outlet is arranged in the oil pocket 14, therefore, during hollow pump core 4 upstrokes, owing to hollow Oil Guide chamber 16, go out the volumes that form cavitys in the oil pocket 14 and reduce, upper plug 19 will go out the well liquid of former storages in the oil pocket 14 and discharge from well liquid exhaust port 22
By last motion state analysis as can be known, in the utility model bidirectional ram hydraulic well pump, hollow pump core 4 is in up stroke and down stroke, all outwards oil extractions under the effect of last lower plunger, in order to reduce the lifting force of pumping, promptly require two oil pumping lifting forces in the stroke approximate identical, lower plunger 5 cross-sectional areas are set are 2 times of upper plug 19 cross-sectional areas in the utility model.
Claims (8)
1. bidirectional ram hydraulic well pump, it is characterized in that, this oil well pump comprises the pump housing, be set with selector valve in it, be set with hollow pump core in the selector valve, the middle part of this hollow pump core is provided with piston, the bottom of hollow pump core is a lower plunger, hollow pump in-core is provided with first one-way valve, wherein, be provided with up stroke thrust oil passage in the pump housing, down stroke thrust oil passage, thrust oil return flow line, the middle part of the pump housing is provided with passes the chamber, and the piston at hollow pump core middle part is arranged on to be passed in the chamber, and the lower end of passing the chamber communicates with described up stroke thrust oil passage, the upper end of passing the chamber communicates with described down stroke thrust oil passage; Selector valve can move along pump housing central axis, and moves with it, and the annexation between up stroke thrust oil passage, down stroke thrust oil passage and the thrust oil return flow line is switched, and realizes the uplink and downlink of hollow pump core.
2. bidirectional ram hydraulic well pump as claimed in claim 1, it is characterized in that, the lower end of the described pump housing is provided with the oil pumping chamber, the upper end is provided with out oil pocket, the port in oil pumping chamber is provided with second one-way valve, the lower end in the hollow Oil Guide chamber of described hollow pump in-core communicates with described oil pumping chamber, the upper end in hollow Oil Guide chamber goes out oil pocket and communicates with described, described lower plunger is arranged in the oil pumping chamber, described hollow pump core upper end is provided with upper plug, described upper plug is arranged in oil pocket, and described hollow pump core is all upwards oil extractions in up stroke and down stroke.
3. bidirectional ram hydraulic well pump as claimed in claim 2 is characterized in that, described lower plunger cross-sectional area is 2 times of upper plug cross-sectional area, and the oil drain quantity in two strokes is identical.
4. bidirectional ram hydraulic well pump as claimed in claim 2, it is characterized in that, the upper and lower end of described selector valve is respectively arranged with the upper spring pre-tightening apparatus, the lower spring pre-tightening apparatus, described hollow pump core upper and lower is respectively arranged with top fastening station and low fastening station, the upper end of upper spring pre-tightening apparatus is resisted against on the top fastening station, the lower end abutment of lower spring pre-tightening apparatus is on low fastening station, the lower surface of described selector valve is provided with up stroke locating slot and down stroke locating slot, also be provided with the location ball between the bottom of described selector valve and the described pump housing, cooperate with the location of two locating slots by the location ball and realize that described selector valve moves up and down the location of position.
5. bidirectional ram hydraulic well pump as claimed in claim 4 is characterized in that the described pump housing is provided with the mounting hole of described location ball, also is provided with holddown spring between the roof of this mounting hole and the described location ball.
6. bidirectional ram hydraulic well pump as claimed in claim 1 is characterized in that, the upper end of the described pump housing is provided with thrust oil inlet opening, refluxing opening and well liquid exhaust port, and described thrust oil return flow line communicates with described refluxing opening.
7. bidirectional ram hydraulic well pump as claimed in claim 1 is characterized in that, the barrel in described oil pumping chamber is provided with equalizing orifice.
8. bidirectional ram hydraulic well pump as claimed in claim 6, it is characterized in that, described thrust oil return flow line comprises up stroke thrust oil return flow line, down stroke thrust oil return flow line, the bottom of described up stroke thrust oil passage overlaps with the bottom of down stroke thrust oil return flow line, and the top of described down stroke thrust oil passage overlaps with the top of up stroke thrust oil return flow line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200144940U CN201908815U (en) | 2011-01-18 | 2011-01-18 | Two-way plunger hydraulic oil well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200144940U CN201908815U (en) | 2011-01-18 | 2011-01-18 | Two-way plunger hydraulic oil well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201908815U true CN201908815U (en) | 2011-07-27 |
Family
ID=44301018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200144940U Expired - Lifetime CN201908815U (en) | 2011-01-18 | 2011-01-18 | Two-way plunger hydraulic oil well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201908815U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032156A (en) * | 2011-01-18 | 2011-04-27 | 文哲 | Hydraulic oil suction pump with bidirectional plunger |
| CN112516422A (en) * | 2020-11-30 | 2021-03-19 | 杭州堃博生物科技有限公司 | Intervention device for administration to bronchus |
-
2011
- 2011-01-18 CN CN2011200144940U patent/CN201908815U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032156A (en) * | 2011-01-18 | 2011-04-27 | 文哲 | Hydraulic oil suction pump with bidirectional plunger |
| CN102032156B (en) * | 2011-01-18 | 2014-07-30 | 文哲 | Hydraulic oil suction pump with bidirectional plunger |
| CN112516422A (en) * | 2020-11-30 | 2021-03-19 | 杭州堃博生物科技有限公司 | Intervention device for administration to bronchus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110727 Effective date of abandoning: 20140730 |
|
| RGAV | Abandon patent right to avoid regrant |