CN101725514B - Hydraulic reciprocating type oil well pump - Google Patents

Hydraulic reciprocating type oil well pump Download PDF

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Publication number
CN101725514B
CN101725514B CN2009102129707A CN200910212970A CN101725514B CN 101725514 B CN101725514 B CN 101725514B CN 2009102129707 A CN2009102129707 A CN 2009102129707A CN 200910212970 A CN200910212970 A CN 200910212970A CN 101725514 B CN101725514 B CN 101725514B
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CN
China
Prior art keywords
valve
hydraulic
selector valve
oil
piston
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Expired - Fee Related
Application number
CN2009102129707A
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Chinese (zh)
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CN101725514A (en
Inventor
徐兴
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Nanjing Juyuan Energy Technology Co., Ltd.
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徐兴
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Priority to CN2009102129707A priority Critical patent/CN101725514B/en
Publication of CN101725514A publication Critical patent/CN101725514A/en
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Publication of CN101725514B publication Critical patent/CN101725514B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to an oil well pump, in particular to a hydraulic reciprocating type oil well pump. The hydraulic reciprocating type oil well pump comprises a hydraulic inlet, a hydraulic outlet, a reversing valve, a poke rod I of the reversing valve, a reversing control rod, a hydraulic pipe I, a piston of a power cylinder, the power cylinder, a linkage rod, an oil inlet valve I, an oil outlet valve I, an oil outlet pipe, a piston of an oil-pumping cylinder, the oil-pumping cylinder, an oil outlet valve II, an oil inlet valve II, a hydraulic pipe II, a poke rod II of the reversing valve and a push head, wherein the reversing valve is provided with the poke rod I of the reversing valve and the poke rod II of the reversing valve; the hydraulic pipe I and the hydraulic pipe II enter the upper end and the lower end of the power cylinder respectively; the piston of the power cylinder are arranged in the power cylinder; one end of the piston of the power cylinder is connected with the reversing control rod, and the other end of the piston of the power cylinder is connected with one end of the linkage rod; the other end of the reversing control rod is provided with the push rod; the other end of the linkage rod is connected with the piston of the oil-pumping cylinder; the piston of the oil-pumping cylinder is arranged in the oil-pumping cylinder; and the oil inlet valve I and the oil inlet valve II are communicated with the upper part and the lower part of the oil-pumping cylinder.

Description

A kind of hydraulic reciprocating type oil well pump
Technical field
What the present invention relates to is a kind of oil-well pump of oil well, particularly a kind of hydraulic reciprocating type oil well pump.
Background technique
The oil well pump efficient height that utilizes hydraulic power to recover the oil, have remarkable advantages than the rod pumping pump oil recovery, all in this technology of exploitation, this technology still is in the starting stage in China in domestic many companies, some companies have developed the hydraulic power oil pump of several forms, but also have some defectives.For example, Chinese patent publication number CN 101216028A, open day is on July 9th, 2008, and denomination of invention is a hydraulic power oil pump, and this application case discloses a kind of hydraulic pressure that utilizes and has been power, ground control commutation, the oil well pump that plunger relies on suspending weight to reset.Its deficiency is: 1. the ground commutation does not have accurate commutation condition.The piston reset time is relevant with suspending weight weight and subsurface environment.2. fuel-displaced during piston stroking upward, not fuel-displaced when descending, pump efficiency is low.3. the descent of piston dependence suspending weight that resets, the suspending weight light weight, it is slow then to reset.The suspending weight quality is heavy, though it is fast to reset, during piston stroking upward, hydraulic pressure needs work just many, and pump efficiency is low.
Summary of the invention
The objective of the invention is provides a kind of hydraulic reciprocating type oil well pump at above-mentioned deficiency, be a kind of be power with hydraulic pressure, commutation position is accurately controlled, and adopts the reciprocating motion of the pistons can both oil extraction, fuel-displaced, the hydraulic reciprocating type oil well pump that pump efficiency is high.
A kind of hydraulic reciprocating type oil well pump of the present invention is to take following technological scheme to realize: a kind of hydraulic reciprocating type oil well pump comprises the hydraulic pressure inlet, the hydraulic pressure outlet, selector valve, selector valve turning lever one, reversing control lever, hydraulic tube one, the ram piston, ram, linkage rod, oiling valve one, outlet valve one, oil outlet tube, oil pumping cylinder piston, the oil pumping cylinder, outlet valve two, oiling valve two, oil pumping cylinder piston ring, linkage rod seal ring one, linkage rod seal ring two, the ram piston ring, the reversing control lever seal ring, hydraulic tube two, selector valve turning lever two and pusher head.
Hydraulic pressure inlet, hydraulic pressure outlet, hydraulic tube one, hydraulic tube two link to each other with each interface (a interface, b interface, c interface, d interface) of selector valve respectively.Selector valve turning lever one and selector valve turning lever two are housed on the selector valve, and described selector valve turning lever one and selector valve turning lever two are hinged with selector valve valve rod two ends respectively.Hydraulic tube one and hydraulic tube two feed the upper/lower terminal of ram respectively.The ram piston is housed in the ram.Ram piston one end connects reversing control lever, and the other end connects an end of linkage rod.The other end of reversing control lever is equipped with pusher head, and when the ram piston was in the top of ram and bottom, pusher head promoted selector valve turning lever and selector valve turning lever respectively, makes selector valve be in two working staties, i.e. station one, station two.The other end of linkage rod connects oil pumping cylinder piston.Oil pumping cylinder piston is in the oil pumping cylinder.Oiling valve one, oiling valve two respectively with oil pumping cylinder upper and lower two-part spatial communication.The upper and lower two-part of oil pumping cylinder space is connected with outlet valve one, outlet valve two respectively.Outlet valve one and outlet valve two are externally connected with oil outlet tube.The ram piston ring is housed on the ram piston.Oil pumping cylinder piston ring is housed on the oil pumping cylinder piston.Linkage rod seal ring two, reversing control lever seal ring are housed on the ram.On the oil pumping cylinder linkage rod seal ring one is housed.Described selector valve turning lever is provided with pusher head.
Selector valve turning lever one and selector valve turning lever two are housed on the selector valve.When the selector valve turning lever is pushed, selector valve is in station one.Power fluid enters selector valve from the hydraulic pressure inlet, flows out from hydraulic tube two again.Power fluid flows into selector valve from hydraulic tube one, flows out from the hydraulic pressure outlet again.When the selector valve turning lever is pushed, selector valve is in station two.Power fluid enters selector valve from the hydraulic pressure inlet, flows out from hydraulic tube one again.Power fluid flows into selector valve from hydraulic tube two, flows out from the hydraulic pressure outlet again.
The invention has the beneficial effects as follows: (1) ram piston accurately feeds back commutation position by reversing control lever.When (2) pumping the cylinder reciprocating motion of the pistons, can both be fuel-displaced.(3) movement velocity of oil pumping cylinder piston is by the pressure decision of hydraulic pressure.Can improve oil yield rate by improving the power of hydraulic press.
Description of drawings
The invention will be further described below with reference to accompanying drawing:
Fig. 1 is a kind of hydraulic reciprocating type oil well pump structural representation.
Embodiment
With reference to accompanying drawing 1, a kind of hydraulic reciprocating type oil well pump comprises hydraulic pressure inlet 1, hydraulic pressure outlet 2, selector valve 3, selector valve turning lever 1, reversing control lever 5, hydraulic tube 1, ram piston 7, ram 8, linkage rod 9, oiling valve 1, outlet valve 1, oil outlet tube 12, oil pumping cylinder piston 13, oil pumping cylinder 14, outlet valve 2 15, oiling valve 2 16, oil pumping cylinder piston ring 17, linkage rod seal ring 1, linkage rod seal ring 2 19, ram piston ring 20, reversing control lever seal ring 21, hydraulic tube 2 22, selector valve turning lever 2 23 and pusher head 24.
Hydraulic pressure inlet 1, hydraulic pressure outlet 2, hydraulic tube 1, hydraulic tube 2 22 link to each other with each interface (a interface, b interface, c interface, d interface) of selector valve 3 respectively.Selector valve turning lever 1 and selector valve turning lever 2 23 are housed on the selector valve 3, and described selector valve turning lever 1 and selector valve turning lever 2 23 are hinged with selector valve valve rod 25 two ends respectively.Hydraulic tube 1 and hydraulic tube 2 22 feed the upper/lower terminal of ram 8 respectively.Ram piston 7 is housed in the ram 8.Ram piston 7 one ends connect reversing control lever 5, and the other end connects an end of linkage rod 9.The other end of reversing control lever 5 connects pusher head 24, and when ram piston 7 was in the top of ram 8 and bottom, pusher head 24 promoted selector valve turning lever 23 and selector valve turning lever 4 respectively, makes selector valve 3 be in two working staties.The other end of linkage rod 9 connects oil pumping cylinder piston 13.Oil pumping cylinder piston 13 is contained in the oil pumping cylinder 14.Oiling valve 1, oiling valve 2 16 respectively with oil pumping cylinder 14 upper and lower two-part spatial communication.Oil pumping cylinder 14 upper and lower two-part spaces are connected with outlet valve 1, outlet valve 2 15 respectively.Outlet valve 1 and outlet valve 2 15 are externally connected with oil outlet tube 12.Ram piston ring 20 is housed on the ram piston 7.Oil pumping cylinder piston ring 17 is housed on the oil pumping cylinder piston 13.Linkage rod seal ring 2 19, reversing control lever seal ring 21 are housed on the ram 8.On the oil pumping cylinder 14 linkage rod seal ring 1 is housed.On the described selector valve turning lever 4 pusher head 24 is housed.
Selector valve turning lever 1 and selector valve turning lever 2 23 are housed on the selector valve 3.When selector valve turning lever 4 is pushed, selector valve 3 is in station one.Power fluid enters selector valve 3 from hydraulic pressure inlet 1, flows out from hydraulic tube 2 22 again.Power fluid flows into selector valve 3 from hydraulic tube 1, flows out from hydraulic pressure outlet 2 again.When selector valve turning lever 23 is pushed, selector valve 3 is in station two.Power fluid enters selector valve 3 from hydraulic pressure inlet 1, flows out from hydraulic tube 1 again.Power fluid flows into selector valve 3 from hydraulic tube 2 22, flows out from hydraulic pressure outlet 2 again.
Described selector valve 3 is 24 logical selector valves.Can adopt commercially available 24 logical selector valves.
Described oiling valve 1, oiling valve 2 16, outlet valve 1, outlet valve 2 15 are commercially available one-way valve.Described one-way valve can adopt non-return valve or one-way valve plate valve.
Sketch ram piston 7 in conjunction with the accompanying drawings and be in working principle when moving upward: selector valve 3 is in station one.Power fluid enters selector valve 3 from hydraulic pressure inlet 1, enters the bottom of ram 8 by hydraulic tube 2 22, and ram piston 7 is moved upward.The power fluid on ram 8 tops flows back to selector valve 3 by hydraulic tube 1, flows out from hydraulic pressure outlet 2 again.When ram piston 7 moves upward, drive linkage rod 9 and move upward, linkage rod 9 drives oil pumping cylinder piston 13 and moves upward.Formation fluid enters oil pumping cylinder 14 lower space by oiling valve 10.The formation fluid on oil pumping cylinder 14 tops flows out to oil outlet tube 12 by outlet valve 1.When ram piston 7 moves upward, drive reversing control lever 5 and move upward.When ram piston 7 arrived the top of ram 8, pusher head 24 promoted selector valve turning lever 23, makes selector valve 3 be in station two, converts the state that ram piston 7 is moved downward to.
Sketch ram piston 7 in conjunction with the accompanying drawings and be in working principle when moving downward: selector valve 3 is in station two.Power fluid enters selector valve 3 from hydraulic pressure inlet 1, enters the top of ram 8 by hydraulic tube 1, and ram piston 7 is moved downward.The power fluid of ram 8 bottoms flows back to selector valve 3 by hydraulic tube 2 22, flows out from hydraulic pressure outlet 2 again.When ram piston 7 moves downward, drive linkage rod 9 and move downward, linkage rod 9 drives oil pumping cylinder piston 13 and moves downward.Formation fluid enters oil pumping cylinder 14 upper spaces by oiling valve 16.The formation fluid of oil pumping cylinder 14 bottoms flows out to oil outlet tube 12 by outlet valve 2 15.When ram piston 7 moves downward, drive reversing control lever 5 and move downward.When ram piston 7 arrived the bottom of ram 8, pusher head 24 promoted selector valve turning lever 4, makes selector valve 3 be in station one, converts the state that ram piston 7 is moved upward to.

Claims (7)

1. a hydraulic reciprocating type oil well pump is characterized in that comprising hydraulic pressure inlet, hydraulic pressure outlet, selector valve, selector valve turning lever one, reversing control lever, hydraulic tube one, ram piston, ram, linkage rod, oiling valve one, outlet valve one, oil outlet tube, oil pumping cylinder piston, oil pumping cylinder, outlet valve two, oiling valve two, hydraulic tube two, selector valve turning lever two and pusher head;
Hydraulic pressure inlet, hydraulic pressure outlet, hydraulic tube one, hydraulic tube two link to each other with each interface of selector valve respectively, and selector valve turning lever one and selector valve turning lever two are housed on the selector valve, and hydraulic tube one and hydraulic tube two feed the upper/lower terminal of ram respectively; The ram piston is housed in the ram, and ram piston one end connects reversing control lever, and the other end connects an end of linkage rod, and the other end of reversing control lever is equipped with pusher head; The other end of linkage rod connects oil pumping cylinder piston, and oil pumping cylinder piston is contained in the oil pumping cylinder, oiling valve one, oiling valve two respectively with the upper and lower two-part spatial communication of oil pumping cylinder; The upper and lower two-part of oil pumping cylinder space is connected with outlet valve one, outlet valve two respectively, and outlet valve one and outlet valve two are externally connected with oil outlet tube.
2. hydraulic reciprocating type oil well pump according to claim 1 is characterized in that described selector valve is 24 logical selector valves.
3. hydraulic reciprocating type oil well pump according to claim 1 is characterized in that described oiling valve one, oiling valve two, outlet valve one, outlet valve two are one-way valve.
4. hydraulic reciprocating type oil well pump according to claim 1 is characterized in that described selector valve turning lever one and selector valve turning lever two are hinged with selector valve valve rod two ends respectively.
5. hydraulic reciprocating type oil well pump according to claim 1 is characterized in that on the described ram piston ram piston ring being housed, and oil pumping cylinder piston ring is housed on the oil pumping cylinder piston.
6. hydraulic reciprocating type oil well pump according to claim 1 is characterized in that being equipped with on the described ram linkage rod seal ring two and reversing control lever seal ring, on the oil pumping cylinder linkage rod seal ring one is housed.
7. hydraulic reciprocating type oil well pump according to claim 1, it is characterized in that when the ram piston is in the top of ram and bottom, pusher head promotes selector valve turning lever one and selector valve turning lever two respectively, makes selector valve be in two working staties.
CN2009102129707A 2009-11-17 2009-11-17 Hydraulic reciprocating type oil well pump Expired - Fee Related CN101725514B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009102129707A CN101725514B (en) 2009-11-17 2009-11-17 Hydraulic reciprocating type oil well pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009102129707A CN101725514B (en) 2009-11-17 2009-11-17 Hydraulic reciprocating type oil well pump

Publications (2)

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CN101725514A CN101725514A (en) 2010-06-09
CN101725514B true CN101725514B (en) 2011-06-29

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103498786A (en) * 2013-10-21 2014-01-08 重庆科技学院 Oil production pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551075A (en) * 1981-11-02 1985-11-05 Otis Eng Co Well pump
CN2057231U (en) * 1989-12-29 1990-05-16 机械电子工业部北京机械工业自动化研究所 Hydraulic long stroke pumping unit
CN2251634Y (en) * 1995-04-03 1997-04-09 毕华照 Hydrodynamic deep oil-well pump
CN201531399U (en) * 2009-11-17 2010-07-21 徐兴 Hydraulic reciprocating oil-well defueling pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551075A (en) * 1981-11-02 1985-11-05 Otis Eng Co Well pump
CN2057231U (en) * 1989-12-29 1990-05-16 机械电子工业部北京机械工业自动化研究所 Hydraulic long stroke pumping unit
CN2251634Y (en) * 1995-04-03 1997-04-09 毕华照 Hydrodynamic deep oil-well pump
CN201531399U (en) * 2009-11-17 2010-07-21 徐兴 Hydraulic reciprocating oil-well defueling pump

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Effective date of registration: 20151124

Address after: 210000 No. 58, Heng Jing Road, Nanjing economic and Technological Development Zone, Jiangsu

Patentee after: Nanjing Juyuan Energy Technology Co., Ltd.

Address before: 210000, room 1, 112, Lane mother's lane, Xuanwu District, Nanjing, Jiangsu

Patentee before: Xu Xing

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110629

Termination date: 20171117