CN203022703U - Flow-compensation-type hydraulic oil pumping machine - Google Patents
Flow-compensation-type hydraulic oil pumping machine Download PDFInfo
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- CN203022703U CN203022703U CN 201320002141 CN201320002141U CN203022703U CN 203022703 U CN203022703 U CN 203022703U CN 201320002141 CN201320002141 CN 201320002141 CN 201320002141 U CN201320002141 U CN 201320002141U CN 203022703 U CN203022703 U CN 203022703U
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- pipeline
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- reversal valve
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Abstract
The utility model discloses a flow-compensation-type hydraulic oil pumping machine, and relates to the field of oil pumping machine equipment manufacturing in an oil field. The flow-compensation-type hydraulic oil pumping machine comprises two operating oil cylinders, an energy storage device, a hydraulic pump set and a well pole; piston rods of the operating oil cylinders and one end of the well pole are fixedly connected to a connecting frame; cylinder bodies of the operating oil cylinders are fixed on a working bench; the well pole penetrates through the working bench and extends into an oil well; a rodless cavity of each operating oil cylinder is provided with a pipeline which is sequentially connected with a first reversing valve and the energy storage device, and the rodless cavity is additionally provided with a pipeline which is sequentially connected with a second reversing valve and the hydraulic pump set; and the energy storage device is additionally provided with a pipeline which is connected with the second reversing valve connected with an oil tank. The problems of high requirement on hydraulic pump set flow, high motor power and high energy consumption are solved.
Description
Technical field
The utility model relates to oil-field oil pumper equipment making field, relates in particular to a kind of hydraulic pumping unit of twin-tub.
Background technology
What oil field, the contemporary world various countries overwhelming majority was used is that bar type oil pumper is arranged, and its sucker rod pumping machine moves reciprocatingly down-hole oil pump plunger and crude oil is evacuated to ground by driving sucker rod.Due to the normally thousands of rice of oil well depth. sucker rod also also different with different its weight of oil well depth.According to investigating with each oil field, Southeast Asia at home at present. all in 5-15 ton scope, what the oil field routine was used now is beam type machinery oil pumper (being commonly called as the machine of kowtowing) to the overwhelming majority.
For the mining depth oil well, heavy oil wells, must use the oil pumper of large load, although so just need the oil pumper of the large load of development long stroke. beam pumping unit has simple in structure, being convenient to the advantages such as maintenance, is currently to make traditionally oil pumper with the most use, but wish design long stroke, large load but has many problems, 1. approximately 34 tons of the complete machine weight of the too huge as 12 type machines of mechanism size; 2. balance is poor, and its walking beam length is over 9 meters. and the weight of balance portion also surpasses 10 tons of .3 because size strengthens, and the force-bearing situation of complete machine is variation also. and these all bring difficulty for installation and transportation and well layout.This shows, the conventional machine of kowtowing is difficult to satisfy long stroke, the requirement of low jig frequency and large load.
in order to overcome defects, people's utility model a kind of hydraulic pumping unit that utilizes hydraulic principle, mainly utilize oil pump pump-in pressure oil in the hydraulic cylinder to drive liquid presses piston pole and stretch out that thereby to drive the well bar up, during the oil pump off-load, make the well bar descending, move back and forth like this purpose that reaches oil pumping, but its energy consumption is huge, the reciprocating speed of general rod-pumped well bar needs 35-40 m/min, this just needs hydraulic system in the situation that guarantee operating pressure, the hydraulic pump group of larger flow also must be provided, therefore be not suitable for high efficiency oil pumping operation, to having relatively high expectations of motor, the high expensive of motor, traffic requirement to oil pump is also higher, virtually strengthened cost of manufacture, have much room for improvement.
Summary of the invention
The utility model is for the deficiencies in the prior art, provides that a kind of energy consumption is little, pumping efficiency is high, the lower flow-compensated formula hydraulic pumping unit of requirement of hydraulic pump group and motor.
the utility model is for solving the problems of the technologies described above, provide following technical scheme: a kind of flow-compensated formula hydraulic pumping unit, comprise 2 operating cylinders, accumulator, the hydraulic pump group, the well bar, it is characterized in that described operating cylinder piston rod and well bar one end are fixedly connected on link, the operating cylinder cylinder body is fixed on workbench, the well bar passes workbench and stretches in oil well, described operating cylinder rodless cavity arranges a pipeline and connects successively the first reversal valve, accumulator, separately establish a pipeline and connect successively the second reversal valve, the hydraulic pump group, described accumulator is separately established a pipeline and is connected the second reversal valve, described the second reversal valve connects oil sump.
As further improvement of the utility model, described the first reversal valve has additional a ball relief valve to the pipeline of accumulator.
As further improvement of the utility model, described the second reversal valve has additional a pipeline connection overflow valve to the pipeline between the hydraulic pump group.
The beneficial effects of the utility model: hydraulic cylinder is single-action hydraulic cylinder (without piston), makes simply, and seal few (only needing the packed-piston bar) is so long service life is safeguarded with the replacing sealing easily simple; Descending the time, operating cylinder does not namely need fuel feeding to the oil sump oil extraction due to the well bar, and this moment, the electric-motor pump group can store energy to the Accumulator arrangements fuel feeding, can replenish flow to operating cylinder after release, improves the well bar speed of service; Owing to having adopted duplex to make the oil cylinder syndeton, frame is simple, its stress equalization, and its frame can be directly installed on the flange of well mouth of oil well, does not need any foundation of civil work; Operating cylinder has been taked reverse installation form, has reduced greatly the height (reducing at least 3 meters) of whole oil pumper, makes whole derrick more firm, and Maintenance and Repair are also convenient; Owing to being two operating cylinder work, be more suitable for heavy load (more than 20 tons) and long stroke (4 meters) oil well also can use.
Description of drawings
Fig. 1 is the utility model First Principle figure.
Fig. 2 is the utility model the second schematic diagram.
The specific embodiment
a kind of flow-compensated formula hydraulic pumping unit, comprise 2 operating cylinders 001, accumulator 002, hydraulic pump group 003, well bar 004, described operating cylinder 001 piston rod and well bar 004 1 ends are fixedly connected on link 005, operating cylinder 001 cylinder body is fixed on workbench 006, well bar 004 passes workbench 006 and stretches in oil well 007, described operating cylinder 001 rodless cavity 011 arranges a pipeline and connects successively the first reversal valve 008, accumulator 002, separately establish a pipeline and connect successively the second reversal valve 009, hydraulic pump group 003, described accumulator 002 is separately established a pipeline and is connected the second reversal valve 009, described the second reversal valve 009 connects oil sump 010, described the first reversal valve 008 has additional a ball relief valve 012 to the pipeline of accumulator 002, described the second reversal valve 009 has additional a pipeline connection overflow valve 013 to the pipeline of 003 of hydraulic pump group.
the utility model when pumping operation as shown in Figure 1, 003 operation of hydraulic pump group, (described the second reversal valve 009 makes hydraulic pump group 003 to operating cylinder 001 pipeline one-way conduction to pressure oil to 001 while of two operating cylinders fuel feeding through the second reversal valve 009, accumulator 002 is to the pipeline one-way conduction of operating cylinder 001, the pressure oil of operating cylinder 001 can not enter accumulator 002), make the well bar 004 of oil well 007 steadily increase, when well bar 004 rises to highly, open the ball relief valve 012 of accumulator 002 below, make the first reversal valve 008, (namely the second reversal valve 009 makes hydraulic pump group 003 to operating cylinder 001 pipeline cut-off to the second 009 while of reversal valve dead electricity as shown in Figure 2, make hydraulic pump group 003 to accumulator 002 pipeline one-way conduction and make work oil pump 001 to the pipeline one-way conduction of oil sump 010, the first reversal valve 008 makes accumulator 002 to the pipeline two-way stop of operating cylinder 001).To oil sump 010 oil extraction, well bar 004 is descending under the load of well bar 004 for the pressure oil of operating cylinder 001, and 003 beginning of hydraulic pump group makes accumulator 002 energy storage to accumulator 002 pump-in pressure oil.When well bar 004 goes downwards to when needing commutation position, the first reversal valve 008, the second reversal valve 009 simultaneously electric, system returns to as shown in Figure 1, and state (is that described the second reversal valve 009 makes hydraulic pump group 003 to operating cylinder 001 pipeline one-way conduction, accumulator 002 is to the pipeline one-way conduction of operating cylinder 001), this time, hydraulic pump group 003 and accumulator 002 are simultaneously to operating cylinder 001 fuel feeding, satisfied the speed of service of operating cylinder 001, and reduced the traffic requirement to hydraulic pump group 003, reached the purpose of oil pumping continuous operation.
The above-mentioned hydraulic pump group 003 of mentioning comprises hydraulic pump 031 and motor 032.
Claims (3)
1. flow-compensated formula hydraulic pumping unit, comprise 2 operating cylinders, accumulator, hydraulic pump group, well bar, it is characterized in that described operating cylinder piston rod and well bar one end are fixedly connected on link, the operating cylinder cylinder body is fixed on workbench, the well bar passes workbench and stretches in oil well, described operating cylinder rodless cavity arranges a pipeline and connects successively the first reversal valve, accumulator, separately establish a pipeline and connect successively the second reversal valve, hydraulic pump group, described accumulator is separately established a pipeline and is connected the second reversal valve, and described the second reversal valve connects oil sump.
2. a kind of flow-compensated formula hydraulic pumping unit according to claim 1, is characterized in that described the first reversal valve has additional a ball relief valve to the pipeline of accumulator.
3. a kind of flow-compensated formula hydraulic pumping unit according to claim 1, is characterized in that described the second reversal valve has additional a pipeline connection overflow valve to the pipeline between the hydraulic pump group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002141 CN203022703U (en) | 2013-01-05 | 2013-01-05 | Flow-compensation-type hydraulic oil pumping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320002141 CN203022703U (en) | 2013-01-05 | 2013-01-05 | Flow-compensation-type hydraulic oil pumping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203022703U true CN203022703U (en) | 2013-06-26 |
Family
ID=48646694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320002141 Expired - Fee Related CN203022703U (en) | 2013-01-05 | 2013-01-05 | Flow-compensation-type hydraulic oil pumping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203022703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075133A (en) * | 2013-01-05 | 2013-05-01 | 无锡市科优液压设备制造有限公司 | Flow compensation type hydraulic pumping unit |
-
2013
- 2013-01-05 CN CN 201320002141 patent/CN203022703U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075133A (en) * | 2013-01-05 | 2013-05-01 | 无锡市科优液压设备制造有限公司 | Flow compensation type hydraulic pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130626 Termination date: 20150105 |
|
| EXPY | Termination of patent right or utility model |