CN103742490A - Hybrid pumping unit - Google Patents
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- CN103742490A CN103742490A CN201410037526.7A CN201410037526A CN103742490A CN 103742490 A CN103742490 A CN 103742490A CN 201410037526 A CN201410037526 A CN 201410037526A CN 103742490 A CN103742490 A CN 103742490A
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Abstract
The invention discloses a hybrid pumping unit comprising an accumulator, a pressure sensor, an accumulator reversing valve, a check valve, a hydraulic pump/motor, a first coupling, a power coupling device, a liquid discharging reversing valve, a motor, a second coupling, a first clutch, a third coupling, a second clutch, a pumping unit body, a pilot relief valve, an oil tank, a control unit, a first hydraulic pipeline, a second hydraulic pipeline, a third hydraulic pipeline, a fourth hydraulic pipeline, a fifth hydraulic pipeline, a sixth hydraulic pipeline, a seventh hydraulic pipeline, an eighth hydraulic pipeline and a ninth hydraulic pipeline. According to the hybrid pumping unit, on the basis of unchanging a traditional beam pumping unit body, only a prime motor part is modified, and design and manufacture cost is low; the hybrid pumping unit is simple in structure, has good versatility, and can be used for modifying various conventional pump units, so that pumping units in service can be utilized fully.
Description
Technical field
The present invention relates to a kind of crude oil and extract machinery, particularly a kind of mixed power pumping unit.
Background technique
After petroleum production to a certain extent in oil field, the pressure decreased of oil reservoir is to deficiency so that at this moment oil well blowing need to adopt machine instruction statement mining.At present, China is widely used is conventional beam pumping unit.Conventional beam pumping unit conventionally adopt motor as prime mover, gear type retarder as driving mechanism, crank balance mechanism as actuator.This Pumping Unit is simple, durable, maintenance cost is low, easy to operate.But, on the one hand, electric motor starting torque in conventional beam pumping unit is generally 150% left and right of full-load torque, in addition, consider the impulsive load in pumping unit working procedure, when choosing motor, generally need to choose the motor that power is larger, so just cause pumping unit in the course of the work the Rate of average load of motor only for 20%-30%, make motor long-term work in inefficient region, increased the energy consumption of pumping unit.On the other hand, pumping unit is when down stroke, and oil well pump moves downward under the effect of gravity, at this moment can make oil well pump by the anti-motor that drags of driving mechanism, causes machine operation at generating state.But this part of electric weight can not fully absorb by electrical network conventionally, not only caused the waste of gravitational potential energy, a part of electric energy being absorbed by electrical network in addition also can pollute electrical network.
Now, for improve pumping unit efficiency, reduce its energy consumption, domestic some patents that proposed, if existing Chinese patent publication No. is CN102817593A, date of publication is on December 12nd, 2012, and denomination of invention is " swing link type non-beam beam-pumping unit ", and patent is by arranging head sheave and band rope, horse head, walking beam and connecting rod have been replaced, make the simple in structure of pumping unit, manufacture cost is few, and its works is few, power consumption is few, and mechanical efficiency is high.Chinese patent publication No. is CN102913199A, date of publication is on February 6th, 2013, denomination of invention is " a kind of pumping unit ", it is connected with crank by head sheave, reduced the stressed of connecting rod and crank, the decline of resulting torque peak value, fluctuation on crankshaft are reduced, can adopt low-power machine, effectively reduced the energy loss of motor.China Patent Publication No. is CN101016832A, open day is on August 15th, 2007, denomination of invention is " loose-leaf directly pulling oil pumping unit ", it is without crank, connecting rod and other conversion equipments, adopt trap reducing gear to utilize hydraulic program system to realize the to-and-fro motion of pumping unit, there is low cost of manufacture simple in structure, energy-efficient feature.Chinese patent notice of authorization number is CN2573667Y, open day is on September 17th, 2003, denomination of invention is " hydraulic single-cylinder cluster multi-well interactive self-balance pumping unit ", it drives oil pump by speed-adjustable motor, drives the sucker rod of many mouthfuls of wells to pump realize oil pumping operation by the cylinder rod on each well head.Chinese patent publication No. is CN102828729A, date of publication is on December 19th, 2012, denomination of invention is " a kind of automatic hydraulic beam-pumping unit ", it adopts truss structure vertical derrick, speedup sheave block, steel cable flexible transmission, the volume of perpetual motion rate variable displacement pump and quantitative hydraulic oil cylinder composition slows down, and load feedback speed control system.Well is hung gravity complete equilibrium counterweight and 1/3 load counterweight, and upper and lower stop arranges spring energy storage device, has efficient and full automatic feature.Chinese patent notice of authorization number is CN202866763U, notice of authorization is everyday on April 10th, 2013, denomination of invention is " power unit of hydraulic pumping unit and comprise the hydraulic pumping unit of this power unit ", it adopts motor-driven at least one first Secondary Regulation Technology oil hydraulic motor and at least one second Secondary Regulation Technology oil hydraulic motor, drive respectively corresponding underwell pump sucker rod to move back and forth and realize oil pumping operation, this invention has reduced the loss of electric machine, has reduced cost.
Although the pumping unit proposing in above-mentioned patent can play, reduce the object of energy consumption, compared with traditional conventional beam pumping unit, structural modification is larger, and what have is even brand-new organization plan.Make so on the one hand design cost and the cycle of pumping unit increase; If adopt on the other hand the pumping unit described in above-mentioned patent to substitute the beam pumping unit of active service, the cost of the replacing of pumping unit is high, is difficult to promote in a short time, and replaces pumping unit active service, available and can cause undoubtedly the serious waste to existing resource.
Summary of the invention
The invention provides a kind of mixed power pumping unit, its object is to solve the design of the low and New Power Saving Pumping Unit of conventional beam pumping unit efficiency, manufacture cost is high, the cycle is long, does not make full use of the pumping unit of active service and causes the problem of the wasting of resources.
The present invention includes accumulator 1, pressure transducer 2, accumulator selector valve 3, one-way valve 4, hydraulic pump/motor 5, the first coupling 6, dynamic coupling device 8, discharge opeing selector valve 9, motor 10, the second coupling 11, first clutch 13, the 3rd coupling 15, second clutch 17, pumping unit main body 19, pilot operated compound relief valve 20, oil storage tank 21, control unit 22, the first hydraulic tubing P1, the second hydraulic tubing P2, the 3rd hydraulic tubing P3, the 4th hydraulic tubing P4, the 5th hydraulic tubing P5, the 6th hydraulic tubing P6, the 7th hydraulic tubing P7, the 8th hydraulic tubing P8 and the 9th hydraulic tubing P9,
The output shaft of described motor 10 is fixedly connected with first clutch input shaft 12 by the second coupling 11; The driven disc of first clutch 13 and first clutch driven shaft 14 pass through spline joint; First clutch driven shaft 14 is fixedly connected with second clutch input shaft 16 by the 3rd coupling 15; The driven disc of second clutch 17 and second clutch driven shaft 18 pass through spline joint; The first dynamic coupling device axle 7 is connected with hydraulic pump/motor 5 output shafts by the first coupling 6;
Described motor 10 is the conventional AC motor in pumping unit field;
Described first clutch 13 and second clutch 17 are the conventional hydraulic type automatic clutch in mechanical field the inside;
Described hydraulic pump/motor 5 is an inclined disc type axial plunger hydraulic pump/motor, and it is hydraulic secondary component, both can be operated in pump pattern and also can be operated in motoring mode;
Described dynamic coupling device 8 is a gear-box, it is mainly comprised of a pair of pitch wheel, the first dynamic coupling device axle 7, the second dynamic coupling device axle and dynamic coupling device housing, and wherein two gears are connected with the second dynamic coupling device axle with the first dynamic coupling device axle by spline respectively;
The part that described pumping unit main body 19 is removed prime mover for beam pumping unit;
Described accumulator selector valve 3 is three-position four-way valves, and the connection of its each port is as follows: the first port 31 of accumulator selector valve 3 is connected with oil storage tank 21 by the second hydraulic tubing P2; The second port 32 of accumulator selector valve 3 is connected with accumulator 1 by the first hydraulic tubing P1; The 3rd port 33 of accumulator selector valve 3 is connected with the first port 201 of pilot operated compound relief valve 20 with the 4th hydraulic tubing P4 by the 3rd hydraulic tubing P3, and the 3rd port 33 of accumulator selector valve 3 is also connected with the first port 50 of the 5th hydraulic tubing P5 and hydraulic pump/motor 5 by the 3rd hydraulic tubing P3 simultaneously; The 4th port 34 of accumulator selector valve 3 is connected with the second port 51 of hydraulic pump/motor 5 by the 6th hydraulic tubing P6; Accumulator selector valve 3 has: primary importance I, in this position, the first port 31 of accumulator selector valve 3 is connected to the 4th port 34 of the accumulator selector valve 3 of accumulator selector valve 3, and the second port 32 of accumulator selector valve 3 is connected to the 3rd port 33 of accumulator selector valve 3; Second place II, is connected with the 3rd port 33 of accumulator selector valve 3 and the 4th port 34 of accumulator selector valve 3 at the first port 31 of this position accumulator selector valve 3 simultaneously, and the second port 32 of accumulator selector valve 3 seals; The 3rd position III, the first port 31 of accumulator selector valve 3 is connected with the 3rd port 33 of accumulator selector valve 3, and the second port 32 of accumulator selector valve 3 is connected with the 4th port 34 of accumulator selector valve 3; Accumulator selector valve 3 is solenoid valves, and its valve core movement is to primary importance I and the 3rd position III by solenoid control, and spool returns to second place II by Returnning spring;
It is upper that described one-way valve 4 is plugged in the 3rd hydraulic tubing P3, and allow fluid only can flow towards accumulator selector valve 3; The 3rd hydraulic tubing P3, the 4th hydraulic tubing P4 are connected at node N1 place with the 5th hydraulic tubing P5;
Described pressure transducer 2 is connected on the first hydraulic tubing P1;
Described discharge opeing selector valve 9 is two position two-way valves, and the connection of its each port is as follows: discharge opeing selector valve 9 first ports 91 are connected with the remote control orifice 203 of pilot operated compound relief valve 20 by the 8th hydraulic tubing P8; The second port 92 of discharge opeing selector valve 9 is connected with oil storage tank 21 by the 9th hydraulic tubing P9; Discharge opeing selector valve 9 has: primary importance I, is connected at the first port 91 of this position discharge opeing selector valve 9 and the second port 92 of discharge opeing selector valve 9; Second place II, in this position, the first port 91 and second port 92 of discharge opeing selector valve 9 of discharge opeing selector valve 9 all seal; Discharge opeing selector valve 9 is solenoid valves, and its valve core movement is to primary importance I by solenoid control, and spool returns to second place II by Returnning spring;
The second port 202 of described pilot operated compound relief valve 20 is connected with oil storage tank 21 by the 7th hydraulic tubing P7, and its pilot pressure is demarcated as the threshold value of a setting, and this threshold value is accumulator 1 allowed pressure maximum while working;
When the remote control orifice 203 of described pilot operated compound relief valve 20 is connected by discharge opeing selector valve 9 and oil storage tank 21, its main valve plug just can be opened under very little action of hydraulic force, realizes overflow, makes hydraulic pump/motor 5 off-loads.
Working procedure of the present invention and principle are:
The operating mode that described control unit 22 is current according to pumping unit, controls the working state of accumulator selector valve 3, discharge opeing selector valve 9, hydraulic pump/motor 5 and motor 10, pressure transducer 2 be connected to control unit 22.The function realizing according to described mixed power pumping unit, this system can be divided into following several pattern:
Accumulator preliminary filling pattern, when the present invention opens, control unit 22 detects the pressure in accumulator 1 by pressure transducer 2, and when the pressure in accumulator 1 is less than default Preliminary pressure-filled value, the present invention enters accumulator preliminary filling pattern.Under this pattern, under the control of control unit 22, first clutch 13 engages, and second clutch 17 separates; Accumulator selector valve 3 is in primary importance I place, and discharge opeing selector valve 9 is in second place II.Motor 10 is operated in drive pattern, and motor 10 drives hydraulic pump/motor 5 by the second coupling 11, first clutch input shaft 12, first clutch 13, first clutch driven shaft 14, dynamic coupling device 8, the first dynamic coupling device axle 7 and the first coupling 6 successively; At this moment hydraulic pump/motor 5 is operated in pump pattern, hydraulic oil is extracted out by the second hydraulic tubing P2 by hydraulic pump/motor 5 from oil storage tank 21, after accumulator selector valve 3 and the 6th hydraulic tubing P6, arrive hydraulic pump/motor 5, under the effect of hydraulic pump/motor 5, fluid is filled with in accumulator 1 through the 5th hydraulic tubing P5, one-way valve 4, the 3rd hydraulic tubing P3, accumulator selector valve 3 afterwards.When the working pressure in accumulator 1 reaches the pressure maximum that it allows, the hydraulic oil of discharging from hydraulic pump/motor 5 pumps is through pilot operated compound relief valve 20 overflows after the 5th hydraulic tubing P5, the 4th hydraulic tubing P4, and hydraulic oil flows in oil storage tank 21 through the 7th hydraulic tubing P7 afterwards.Pilot operated compound relief valve 20 starts after overflow, control unit 22 is controlled discharge opeing selector valve 9 and is switched to primary importance I, at this moment, the hydraulic oil of discharging from hydraulic pump/motor 5 pumps is drained into oil storage tank 21 after the 5th hydraulic tubing P5, the 4th hydraulic tubing P4, the 8th hydraulic tubing P8, discharge opeing selector valve 9 and the 9th hydraulic tubing P9, realizes accumulator preliminary filling and finish the off-load of rear hydraulic pump/motor 5.
Accumulator fills can pattern, and the present invention is when down stroke, and control unit 22 detects the pressure in accumulator 1 by pressure transducer 2, and when the pressure in accumulator 1 is less than the maximum pressure value that it allows, the present invention enters that accumulator fills can pattern.Under this pattern, under the control of control unit 22, first clutch 13 separates, second clutch 17 combinations; Accumulator selector valve 3 is in primary importance I place, and discharge opeing selector valve 9 is in second place II.Pumping unit main body 19 drives hydraulic pump/motor 5 by second clutch driven shaft 18, second clutch 17, second clutch input shaft 16, the 3rd coupling 15, the defeated axle 14 of the second dynamic coupling device, dynamic coupling device 8, the first dynamic coupling device axle 7 and the first coupling 6 successively; At this moment, motor 10 is not worked, and hydraulic pump/motor 5 is operated in pump pattern.Hydraulic oil is extracted out by the second hydraulic tubing P2 by hydraulic pump/motor 5 from oil storage tank 21, after accumulator selector valve 3 and the 6th hydraulic tubing P6, arrive hydraulic pump/motor 5, under the effect of hydraulic pump/motor 5, hydraulic oil is filled with in accumulator 1 through the 5th hydraulic tubing P5, one-way valve 4, the 3rd hydraulic tubing P3, accumulator selector valve 3 afterwards.When the working pressure in accumulator 1 reaches the pressure maximum that it allows, the hydraulic oil of discharging from hydraulic pump/motor 5 pumps is through pilot operated compound relief valve 20 overflows after the 5th hydraulic tubing P5, the 4th hydraulic tubing P4, and hydraulic oil flows in oil storage tank 21 through the 7th hydraulic tubing P7 afterwards.Pilot operated compound relief valve 20 starts after overflow, control unit 22 is controlled discharge opeing selector valve 9 and is switched to primary importance I, at this moment, the hydraulic oil of discharging from hydraulic pump/motor 5 pumps is drained into oil storage tank 21 after the 5th hydraulic tubing P5, the 4th hydraulic tubing P4, the 8th hydraulic tubing P8, discharge opeing selector valve 9 and the 9th hydraulic tubing P9, realizes the off-load of hydraulic pump/motor 5.
Hydraulic pump/motor assistant mode, when the present invention works, the driving force that can provide when motor 10 is less than while driving the required driving force of pumping unit main body 19, and the present invention enters hydraulic pump/motor assistant mode.Under this pattern, under the control of control unit 22, first clutch 13 engages, second clutch 17 combinations; Accumulator selector valve 3 is in the 3rd III place, position, and discharge opeing selector valve 9 is in primary importance I, and hydraulic pump/motor 5 is operated in motoring mode.Under this pattern, to control motor 10 and be operated in efficient district, the driving force that motor 10 is not enough to provide is supplemented by hydraulic pump/motor 5.On the one hand, motor 10 arrives dynamic coupling device 8 by the second coupling 11, first clutch input shaft 12, first clutch 13 and first clutch driven shaft 14 by transmission of power successively; On the other hand, hydraulic pump/motor 5 also arrives dynamic coupling device 8 by the first coupling 6 and the first dynamic coupling device axle 7 by transmission of power simultaneously.Power, after dynamic coupling device 8 couplings, is delivered to pumping unit main body 19 through the second dynamic coupling device axle, the 3rd coupling 15, second clutch input shaft 16, second clutch 17, second clutch driven shaft 18, and then drives pumping unit main body 19.Under this pattern, the hydraulic oil in accumulator 1 enters hydraulic pump/motor 5 through the first hydraulic tubing P1, accumulator selector valve 3, the 6th hydraulic tubing P6, thereby drives hydraulic pump/motor 5; The hydraulic oil of discharging from hydraulic pump/motor 5 pumps afterwards, is drained into oil storage tank 21 after the 5th hydraulic tubing P5, the 4th hydraulic tubing P4, the 8th hydraulic tubing P8, discharge opeing selector valve 9 and the 9th hydraulic tubing P9.
Pressure maintains pattern, and when accumulator fills when can complete and not need hydraulic pump/motor 5 power-assisted, the present invention enters pressure and maintains pattern.Under this pattern, under the control of control unit 22, first clutch 13 engages, second clutch 17 combinations; Accumulator selector valve 3 is in second place II place, and discharge opeing selector valve 9 is in primary importance I.At this moment hydraulic pump/motor 5 is not worked.Motor 10 works independently, and drives pumping unit main body 19 operation of pumping.Motor 10 is delivered to pumping unit main body 19 by the second coupling 11, first clutch input shaft 12, first clutch 13 and first clutch driven shaft 14, power through dynamic coupling device 8, the second dynamic coupling device axle, the 3rd coupling 15, second clutch input shaft 16, second clutch 17, second clutch driven shaft 18 successively, and then drives pumping unit main body 19.Dynamic coupling device 8 also drives hydraulic pump/motor 5 to dally by the first dynamic coupling device axle 7, the first coupling 6 simultaneously.Hydraulic oil is extracted out by the second hydraulic tubing P2 by hydraulic pump/motor 5 from oil storage tank 21, after accumulator selector valve 3 and the 6th hydraulic tubing P6, arrive hydraulic pump/motor 5, afterwards under the effect of hydraulic pump/motor 5, hydraulic oil is drained into oil storage tank 21 after the 5th hydraulic tubing P5, the 4th hydraulic tubing P4, the 8th hydraulic tubing P8, discharge opeing selector valve 9 and the 9th hydraulic tubing P9, realizes the off-load of hydraulic pump/motor 5.
Described second clutch driven shaft 18 is pumping unit main body input shafts.
Described first clutch driven shaft 14 is second dynamic coupling device axles.
System of the present invention under different mode the position of corresponding valve and the state of clutch as shown in the table:
The invention has the beneficial effects as follows:
1. when the present invention starts, adopt hydraulic pump/motor to provide auxiliary driving force to assist electric motor starting pumping unit, thereby compared with traditional pumping unit, can be equipped with the motor that rated power is less, thereby the Rate of average load of motor in pumping unit working procedure is improved, effectively improve the efficiency of pumping unit;
2. the present invention is converted into hydraulic energy by hydraulic pump/motor by the gravitational potential energy of oil well pump and stores accumulator the inside in the down stroke of pumping unit, avoided on the one hand the anti-motor that drags in oil well pump down stroke process, to electrical network, shine into harmful effect, also get up to make this part energy to be fully utilized this part stored energy on the other hand;
3. the present invention, not changing on the basis of traditional beam pumping unit main body, only transforms prime mover part, and its Design and manufacture cost is low;
4. the present invention is simple in structure, has good versatility, can on numerous conventional oil-pump bases, reequip, thereby can make full use of the pumping unit main body of active service.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Refer to shown in Fig. 1, for the embodiment of the present invention, comprise accumulator 1, pressure transducer 2, accumulator selector valve 3, one-way valve 4, hydraulic pump/motor 5, the first coupling 6, dynamic coupling device 8, discharge opeing selector valve 9, motor 10, the second coupling 11, first clutch 13, the 3rd coupling 15, second clutch 17, pumping unit main body 19, pilot operated compound relief valve 20, oil storage tank 21, control unit 22, the first hydraulic tubing P1, the second hydraulic tubing P2, the 3rd hydraulic tubing P3, the 4th hydraulic tubing P4, the 5th hydraulic tubing P5, the 6th hydraulic tubing P6, the 7th hydraulic tubing P7, the 8th hydraulic tubing P8 and the 9th hydraulic tubing P9,
The output shaft of described motor 10 is fixedly connected with first clutch input shaft 12 by the second coupling 11; The driven disc of first clutch 13 and first clutch driven shaft 14 pass through spline joint; First clutch driven shaft 14 is fixedly connected with second clutch input shaft 16 by the 3rd coupling 15; The driven disc of second clutch 17 and second clutch driven shaft 18 pass through spline joint; The first dynamic coupling device axle 7 is connected with hydraulic pump/motor 5 output shafts by the first coupling 6;
Described motor 10 is the conventional AC motor in pumping unit field;
Described first clutch 13 and second clutch 17 are the conventional hydraulic type automatic clutch in mechanical field the inside;
Described hydraulic pump/motor 5 is an inclined disc type axial plunger hydraulic pump/motor, and it is hydraulic secondary component, both can be operated in pump pattern and also can be operated in motoring mode;
Described dynamic coupling device 8 is a gear-box, it is mainly comprised of a pair of pitch wheel, the first dynamic coupling device axle, the second dynamic coupling device axle and dynamic coupling device housing, and wherein two gears are connected with the second dynamic coupling device axle with the first dynamic coupling device axle by spline respectively;
The part that described pumping unit main body 19 is removed prime mover for beam pumping unit;
Described accumulator selector valve 3 is three-position four-way valves, and the connection of its each port is as follows: the first port 31 of accumulator selector valve 3 is connected with oil storage tank 21 by the second hydraulic tubing P2; The second port 32 of accumulator selector valve 3 is connected with accumulator 1 by the first hydraulic tubing P1; The 3rd port 33 of accumulator selector valve 3 is connected with the first port 201 of pilot operated compound relief valve 20 with the 4th hydraulic tubing P4 by the 3rd hydraulic tubing P3, and the 3rd port 33 of accumulator selector valve 3 is also connected with the first port 50 of the 5th hydraulic tubing P5 and hydraulic pump/motor 5 by the 3rd hydraulic tubing P3 simultaneously; The 4th port 34 of accumulator selector valve 3 is connected with the second port 51 of hydraulic pump/motor 5 by the 6th hydraulic tubing P6; Accumulator selector valve 3 has: primary importance I, in this position, the first port 31 of accumulator selector valve 3 is connected to the 4th port 34 of the accumulator selector valve 3 of accumulator selector valve 3, and the second port 32 of accumulator selector valve 3 is connected to the 3rd port 33 of accumulator selector valve 3; Second place II, is connected with the 3rd port 33 of accumulator selector valve 3 and the 4th port 34 of accumulator selector valve 3 at the first port 31 of this position accumulator selector valve 3 simultaneously, and the second port 32 of accumulator selector valve 3 seals; The 3rd position III, the first port 31 of accumulator selector valve 3 is connected with the 3rd port 33 of accumulator selector valve 3, and the second port 32 of accumulator selector valve 3 is connected with the 4th port 34 of accumulator selector valve 3; Accumulator selector valve 3 is solenoid valves, and its valve core movement is to primary importance I and the 3rd position III by solenoid control, and spool returns to second place II by Returnning spring;
It is upper that described one-way valve 4 is plugged in the 3rd hydraulic tubing P3, and allow fluid only can flow towards accumulator selector valve 3; The 3rd hydraulic tubing P3, the 4th hydraulic tubing P4 are connected at node N1 place with the 5th hydraulic tubing P5;
Described pressure transducer 2 is connected on the first hydraulic tubing P1;
Described discharge opeing selector valve 9 is two position two-way valves, and the connection of its each port is as follows: discharge opeing selector valve 9 first ports 91 are connected with the remote control orifice 203 of pilot operated compound relief valve 20 by the 8th hydraulic tubing P8; The second port 92 of discharge opeing selector valve 9 is connected with oil storage tank 21 by the 9th hydraulic tubing P9; Discharge opeing selector valve 9 has: primary importance I, is connected at the first port 91 of this position discharge opeing selector valve 9 and the second port 92 of discharge opeing selector valve 9; Second place II, in this position, the first port 91 and second port 92 of discharge opeing selector valve 9 of discharge opeing selector valve 9 all seal; Discharge opeing selector valve 9 is solenoid valves, and its valve core movement is to primary importance I by solenoid control, and spool returns to second place II by Returnning spring;
The second port 202 of described pilot operated compound relief valve 20 is connected with oil storage tank 21 by the 7th hydraulic tubing P7, and its pilot pressure is demarcated as the threshold value of a setting, and this threshold value is accumulator 1 allowed pressure maximum while working;
When the remote control orifice 203 of described pilot operated compound relief valve 20 is connected by discharge opeing selector valve 9 and oil storage tank 21, its main valve plug just can be opened under very little action of hydraulic force, realizes overflow, makes hydraulic pump/motor 5 off-loads.
The working procedure of the present embodiment and principle are:
The operating mode that described control unit 22 is current according to pumping unit, controls the working state of accumulator selector valve 3, discharge opeing selector valve 9, hydraulic pump/motor 5 and motor 10, pressure transducer 2 be connected to control unit 22.The function realizing according to described mixed power pumping unit, this system can be divided into following several pattern:
Accumulator preliminary filling pattern, when the present invention opens, control unit 22 detects the pressure in accumulator 1 by pressure transducer 2, and when the pressure in accumulator 1 is less than default Preliminary pressure-filled value, the present invention enters accumulator preliminary filling pattern.Under this pattern, under the control of control unit 22, first clutch 13 engages, and second clutch 17 separates; Accumulator selector valve 3 is in primary importance I place, and discharge opeing selector valve 9 is in second place II.Motor 10 is operated in drive pattern, and motor 10 drives hydraulic pump/motor 5 by the second coupling 11, first clutch input shaft 12, first clutch 13, first clutch driven shaft 14, dynamic coupling device 8, the first dynamic coupling device axle 7 and the first coupling 6 successively; At this moment hydraulic pump/motor 5 is operated in pump pattern, hydraulic oil is extracted out by the second hydraulic tubing P2 by hydraulic pump/motor 5 from oil storage tank 21, after accumulator selector valve 3 and the 6th hydraulic tubing P6, arrive hydraulic pump/motor 5, under the effect of hydraulic pump/motor 5, fluid is filled with in accumulator 1 through the 5th hydraulic tubing P5, one-way valve 4, the 3rd hydraulic tubing P3, accumulator selector valve 3 afterwards.When the working pressure in accumulator 1 reaches the pressure maximum that it allows, the hydraulic oil of discharging from hydraulic pump/motor 5 pumps is through pilot operated compound relief valve 20 overflows after the 5th hydraulic tubing P5, the 4th hydraulic tubing P4, and hydraulic oil flows in oil storage tank 21 through the 7th hydraulic tubing P7 afterwards.Pilot operated compound relief valve 20 starts after overflow, control unit 22 is controlled discharge opeing selector valve 9 and is switched to primary importance I, at this moment, the hydraulic oil of discharging from hydraulic pump/motor 5 pumps is drained into oil storage tank 21 after the 5th hydraulic tubing P5, the 4th hydraulic tubing P4, the 8th hydraulic tubing P8, discharge opeing selector valve 9 and the 9th hydraulic tubing P9, realizes accumulator preliminary filling and finish the off-load of rear hydraulic pump/motor 5.
Accumulator fills can pattern, and the present invention is when down stroke, and control unit 22 detects the pressure in accumulator 1 by pressure transducer 2, and when the pressure in accumulator 1 is less than the maximum pressure value that it allows, the present invention enters that accumulator fills can pattern.Under this pattern, under the control of control unit 22, first clutch 13 separates, second clutch 17 combinations; Accumulator selector valve 3 is in primary importance I place, and discharge opeing selector valve 9 is in second place II.Pumping unit main body 19 drives hydraulic pump/motor 5 by second clutch driven shaft 18, second clutch 17, second clutch input shaft 16, the 3rd coupling 15, the second dynamic coupling device axle, dynamic coupling device 8, the first dynamic coupling device axle 7 and the first coupling 6 successively; At this moment, motor 10 is not worked, and hydraulic pump/motor 5 is operated in pump pattern.Hydraulic oil is extracted out by the second hydraulic tubing P2 by hydraulic pump/motor 5 from oil storage tank 21, after accumulator selector valve 3 and the 6th hydraulic tubing P6, arrive hydraulic pump/motor 5, under the effect of hydraulic pump/motor 5, hydraulic oil is filled with in accumulator 1 through the 5th hydraulic tubing P5, one-way valve 4, the 3rd hydraulic tubing P3, accumulator selector valve 3 afterwards.When the working pressure in accumulator 1 reaches the pressure maximum that it allows, the hydraulic oil of discharging from hydraulic pump/motor 5 pumps is through pilot operated compound relief valve 20 overflows after the 5th hydraulic tubing P5, the 4th hydraulic tubing P4, and hydraulic oil flows in oil storage tank 21 through the 7th hydraulic tubing P7 afterwards.Pilot operated compound relief valve 20 starts after overflow, control unit 22 is controlled discharge opeing selector valve 9 and is switched to primary importance I, at this moment, the hydraulic oil of discharging from hydraulic pump/motor 5 pumps is drained into oil storage tank 21 after the 5th hydraulic tubing P5, the 4th hydraulic tubing P4, the 8th hydraulic tubing P8, discharge opeing selector valve 9 and the 9th hydraulic tubing P9, realizes the off-load of hydraulic pump/motor 5.
Hydraulic pump/motor assistant mode, when the present invention works, the driving force that can provide when motor 10 is less than while driving the required driving force of pumping unit main body 19, and the present invention enters hydraulic pump/motor assistant mode.Under this pattern, under the control of control unit 22, first clutch 13 engages, second clutch 17 combinations; Accumulator selector valve 3 is in the 3rd III place, position, and discharge opeing selector valve 9 is in primary importance I, and hydraulic pump/motor 5 is operated in motoring mode.Under this pattern, to control motor 10 and be operated in efficient district, the driving force that motor 10 is not enough to provide is supplemented by hydraulic pump/motor 5.On the one hand, motor 10 arrives dynamic coupling device 8 by the second coupling 11, first clutch input shaft 12, first clutch 13 and first clutch driven shaft 14 by transmission of power successively; On the other hand, hydraulic pump/motor 5 also arrives dynamic coupling device 8 by the first coupling 6 and the first dynamic coupling device axle 7 by transmission of power simultaneously.Power, after dynamic coupling device 8 couplings, is delivered to pumping unit main body 19 through the second dynamic coupling device axle, the 3rd coupling 15, second clutch input shaft 16, second clutch 17, second clutch driven shaft 18, and then drives pumping unit main body 19.Under this pattern, the hydraulic oil in accumulator 1 enters hydraulic pump/motor 5 through the first hydraulic tubing P1, accumulator selector valve 3, the 6th hydraulic tubing P6, thereby drives hydraulic pump/motor 5; The hydraulic oil of discharging from hydraulic pump/motor 5 pumps afterwards, is drained into oil storage tank 21 after the 5th hydraulic tubing P5, the 4th hydraulic tubing P4, the 8th hydraulic tubing P8, discharge opeing selector valve 9 and the 9th hydraulic tubing P9.
Pressure maintains pattern, and when accumulator fills when can complete and not need hydraulic pump/motor 5 power-assisted, the present invention enters pressure and maintains pattern.Under this pattern, under the control of control unit 22, first clutch 13 engages, second clutch 17 combinations; Accumulator selector valve 3 is in second place II place, and discharge opeing selector valve 9 is in primary importance I.At this moment hydraulic pump/motor 5 is not worked.Motor 10 works independently, and drives pumping unit main body 19 operation of pumping.Motor 10 is delivered to pumping unit main body 19 by the second coupling 11, first clutch input shaft 12, first clutch 13 and first clutch driven shaft 14, power through dynamic coupling device 8, the second dynamic coupling device axle, the 3rd coupling 15, second clutch input shaft 16, second clutch 17, second clutch driven shaft 18 successively, and then drives pumping unit main body 19.Dynamic coupling device 8 also drives hydraulic pump/motor 5 to dally by the first dynamic coupling device axle 7, the first coupling 6 simultaneously.Hydraulic oil is extracted out by the second hydraulic tubing P2 by hydraulic pump/motor 5 from oil storage tank 21, after accumulator selector valve 3 and the 6th hydraulic tubing P6, arrive hydraulic pump/motor 5, afterwards under the effect of hydraulic pump/motor 5, hydraulic oil is drained into oil storage tank 21 after the 5th hydraulic tubing P5, the 4th hydraulic tubing P4, the 8th hydraulic tubing P8, discharge opeing selector valve 9 and the 9th hydraulic tubing P9, realizes the off-load of hydraulic pump/motor 5.
Described second clutch driven shaft 18 is pumping unit main body input shafts.
Described first clutch driven shaft 14 is second dynamic coupling device axles.
System described in the present embodiment under different mode the position of corresponding valve and the state of clutch as shown in the table:
Claims (1)
1. a mixed power pumping unit, it is characterized in that: be by accumulator (1), pressure transducer (2), accumulator selector valve (3), one-way valve (4), hydraulic pump/motor (5), the first coupling (6), dynamic coupling device (8), discharge opeing selector valve (9), motor (10), the second coupling (11), first clutch (13), the 3rd coupling (15), second clutch (17), pumping unit main body (19), pilot operated compound relief valve (20), oil storage tank (21), control unit (22), the first hydraulic tubing (P1), the second hydraulic tubing (P2), the 3rd hydraulic tubing (P3), the 4th hydraulic tubing (P4), the 5th hydraulic tubing (P5), the 6th hydraulic tubing (P6), the 7th hydraulic tubing (P7), the 8th hydraulic tubing (P8) and the 9th hydraulic tubing (P9) form,
The output shaft of described motor (10) is fixedly connected with first clutch input shaft (12) by the second coupling (11); The driven disc of first clutch (13) and first clutch driven shaft (14) pass through spline joint; First clutch driven shaft (14) is fixedly connected with second clutch input shaft (16) by the 3rd coupling (15); The driven disc of second clutch (17) and second clutch driven shaft (18) pass through spline joint; The first dynamic coupling device axle (7) is connected with hydraulic pump/motor (5) output shaft by the first coupling (6);
Described dynamic coupling device (8) is a gear-box, it is mainly comprised of a pair of pitch wheel, the first dynamic coupling device axle, the second dynamic coupling device axle and dynamic coupling device housing, and wherein two gears are connected with the second dynamic coupling device axle with the first dynamic coupling device axle by spline respectively;
Described accumulator selector valve (3) is three-position four-way valve, and first port (31) of accumulator selector valve (3) is connected with oil storage tank (21) by the second hydraulic tubing (P2); Second port (32) of accumulator selector valve (3) is connected with accumulator (1) by the first hydraulic tubing (P1); The 3rd port (33) of accumulator selector valve (3) is connected with first port (201) of pilot operated compound relief valve (20) with the 4th hydraulic tubing (P4) by the 3rd hydraulic tubing (P3), and the 3rd port (33) of accumulator selector valve (3) is also connected with first port (50) of the 5th hydraulic tubing (P5) and hydraulic pump/motor (5) by the 3rd hydraulic tubing (P3) simultaneously; The 4th port (34) of accumulator selector valve (3) is connected with second port (51) of hydraulic pump/motor (5) by the 6th hydraulic tubing (P6); Accumulator selector valve (3) has: primary importance I, in this position, first port (31) of accumulator selector valve (3) is connected to the 4th port (34) of accumulator selector valve (3), and second port (32) of accumulator selector valve (3) is connected to the 3rd port (33) of accumulator selector valve (3); Second place II, the first port (31) at this position accumulator selector valve (3) is connected with the 3rd port (33) of accumulator selector valve (3) and the 4th port (34) of accumulator selector valve (3) simultaneously, the second port (32) sealing of accumulator selector valve (3); The 3rd position III, first port (31) of accumulator selector valve (3) is connected with the 3rd port (33) of accumulator selector valve (3), and second port (32) of accumulator selector valve (3) is connected with the 4th port (34) of accumulator selector valve (3);
It is upper that described one-way valve (4) is plugged in the 3rd hydraulic tubing (P3), and allow fluid only can flow towards accumulator selector valve (3); The 3rd hydraulic tubing (P3), the 4th hydraulic tubing (P4) and the 5th hydraulic tubing (P5) are connected at node N1 place;
Described pressure transducer (2) is connected on the first hydraulic tubing (P1);
Described discharge opeing selector valve (9) is two position two-way valve, and the connection of its each port is as follows: discharge opeing selector valve (9) first ports (91) are connected with the remote control orifice (203) of pilot operated compound relief valve (20) by the 8th hydraulic tubing (P8); Second port (92) of discharge opeing selector valve (9) is connected with oil storage tank (21) by the 9th hydraulic tubing (P9); Discharge opeing selector valve (9) has primary importance (I), at first port (91) of this position discharge opeing selector valve (9) and second port (92) of discharge opeing selector valve (9), is connected; The second place (II), in this position, first port (91) of discharge opeing selector valve (9) all seals with second port (92) of discharge opeing selector valve (9);
Second port (202) of described pilot operated compound relief valve (20) is connected with oil storage tank (21) by the 7th hydraulic tubing P7, and its pilot pressure is demarcated as the threshold value of a setting, and this threshold value is accumulator (1) allowed pressure maximum while working;
When the remote control orifice (203) of described pilot operated compound relief valve (20) is connected with oil storage tank (21) by discharge opeing selector valve (9), its main valve plug just can be opened under very little action of hydraulic force, realizes overflow, makes hydraulic pump/motor (5) off-load;
Described second clutch driven shaft (18) is pumping unit main body input shaft;
Described first clutch driven shaft (14) is the second dynamic coupling device axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410037526.7A CN103742490B (en) | 2014-01-26 | 2014-01-26 | Mixed power pumping unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410037526.7A CN103742490B (en) | 2014-01-26 | 2014-01-26 | Mixed power pumping unit |
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| CN103742490A true CN103742490A (en) | 2014-04-23 |
| CN103742490B CN103742490B (en) | 2015-12-16 |
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| CN201410037526.7A Expired - Fee Related CN103742490B (en) | 2014-01-26 | 2014-01-26 | Mixed power pumping unit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595255A (en) * | 2014-12-30 | 2015-05-06 | 吉林大学 | Hydraulic auxiliary power energy-saving system of beam oil pumping unit |
| CN107269250A (en) * | 2017-08-20 | 2017-10-20 | 李振河 | Multi-energy hybrid power hydraulic pumping unit |
| CN107420072A (en) * | 2017-09-21 | 2017-12-01 | 李振河 | A kind of double motor driving hydraulic pumping unit based on Hydrostatic drive technology |
| CN111101904A (en) * | 2020-01-19 | 2020-05-05 | 胡勇 | Double-machine double-well interactive balance device of winch type non-beam pumping unit |
| CN113757193A (en) * | 2021-09-02 | 2021-12-07 | 浙江大学 | Electro-hydrostatic energy storage unit |
| CN114645694A (en) * | 2022-05-23 | 2022-06-21 | 山东胜信石油装备有限公司 | Vertical oil pumping machine capable of automatically adjusting stroke frequency and balancing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070079609A1 (en) * | 2005-10-06 | 2007-04-12 | Brinkman Jason L | Hybrid hydraulic system and work machine using same |
| WO2008012558A2 (en) * | 2006-07-27 | 2008-01-31 | Artemis Intelligent Power Limited | Hydrostatic regenerative drive system |
| KR101061193B1 (en) * | 2009-11-12 | 2011-09-01 | 볼보 컨스트럭션 이큅먼트 에이비 | Slewing Energy Regeneration Device of Excavator |
| CN203685785U (en) * | 2014-01-26 | 2014-07-02 | 吉林大学 | Hybrid power pumping unit |
-
2014
- 2014-01-26 CN CN201410037526.7A patent/CN103742490B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070079609A1 (en) * | 2005-10-06 | 2007-04-12 | Brinkman Jason L | Hybrid hydraulic system and work machine using same |
| WO2008012558A2 (en) * | 2006-07-27 | 2008-01-31 | Artemis Intelligent Power Limited | Hydrostatic regenerative drive system |
| WO2008012558A3 (en) * | 2006-07-27 | 2008-03-13 | Artemis Intelligent Power Ltd | Hydrostatic regenerative drive system |
| KR101061193B1 (en) * | 2009-11-12 | 2011-09-01 | 볼보 컨스트럭션 이큅먼트 에이비 | Slewing Energy Regeneration Device of Excavator |
| CN203685785U (en) * | 2014-01-26 | 2014-07-02 | 吉林大学 | Hybrid power pumping unit |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595255A (en) * | 2014-12-30 | 2015-05-06 | 吉林大学 | Hydraulic auxiliary power energy-saving system of beam oil pumping unit |
| CN107269250A (en) * | 2017-08-20 | 2017-10-20 | 李振河 | Multi-energy hybrid power hydraulic pumping unit |
| CN107420072A (en) * | 2017-09-21 | 2017-12-01 | 李振河 | A kind of double motor driving hydraulic pumping unit based on Hydrostatic drive technology |
| CN111101904A (en) * | 2020-01-19 | 2020-05-05 | 胡勇 | Double-machine double-well interactive balance device of winch type non-beam pumping unit |
| CN113757193A (en) * | 2021-09-02 | 2021-12-07 | 浙江大学 | Electro-hydrostatic energy storage unit |
| CN114645694A (en) * | 2022-05-23 | 2022-06-21 | 山东胜信石油装备有限公司 | Vertical oil pumping machine capable of automatically adjusting stroke frequency and balancing |
| CN114645694B (en) * | 2022-05-23 | 2022-07-19 | 山东胜信石油装备有限公司 | Vertical oil pumping machine capable of automatically adjusting stroke frequency and balancing |
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| Publication number | Publication date |
|---|---|
| CN103742490B (en) | 2015-12-16 |
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