CN202798540U - Actuator of oil pumping unit - Google Patents
Actuator of oil pumping unit Download PDFInfo
- Publication number
- CN202798540U CN202798540U CN2012205162723U CN201220516272U CN202798540U CN 202798540 U CN202798540 U CN 202798540U CN 2012205162723 U CN2012205162723 U CN 2012205162723U CN 201220516272 U CN201220516272 U CN 201220516272U CN 202798540 U CN202798540 U CN 202798540U
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- China
- Prior art keywords
- phase
- phase alternating
- pumping unit
- oil pumping
- current motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Abstract
The utility model provides an actuator of an oil pumping unit. The actuator of the oil pumping unit is composed of a three-phase AC motor shell, a stator iron core, a three-phase winding, a cage rotor, a rotor shaft, an end cap, a bearing box, a bearing, a fan, a fan shade and a start-operation switching circuit. A three-phase AC semiconductor switch controlled by a rotation speed sensor and a microprocessor to supply power for the three-phase winding interruptedly according to torque changes of a crankshaft in all intermediate ranges is connected with a tail end of the three-phase winding of a three-phase AC motor in series.
Description
Technical field
The utility model relates to a kind of power transmission system that drags oil-field oil pumper, especially relate to according to the torque variation of oil pumping machine crank axle and intermittently powering to three-phase alternating-current motor, eliminate and draw loss, and decrease oil pumper pulsating torque peak value, the energy-saving pumping unit actuator of reduction energy consumption.
Background technology
Now employed various conventional trip fine strain of millet formula oil pumper, it is simple in structure and have good soft commutation function, the advantages such as reliability is high, easy to maintenance, adaptation field condition environment.In oil recovery machiner, occupy very important status, within from now on considerable time, remain the main oil production equipment in oil field.But, because its machine driving and exchange system are used crank axle and quadric chain, and balance weight is arranged on the crank, make it be difficult to reach the factors such as full balance, cause the load characteristic of oil pumper, form a kind of frequent and peak torque is very high, the positive and negative violent pulsating load of non-sine, only there was 1 to 2 second the time that occurs negative torque from the forward torque peak value that makes the three-phase alternating-current motor overload operation to crank axle, in this process, three-phase alternating-current motor will be via overload, underloading, unloaded operating condition with braking makes three-phase alternating-current motor be in moving away from efficient district of waste electric energy.For bearing the transmission of power of peak value torque, the gear reduction box of oil pumper, the power transmission parts such as changement all design very heavyly, for making this jumbo start smoothly and pass through peak torque point, force the match power of three-phase alternating-current motor to be multiplied, the 3-4 of average power demand doubly when reaching actual motion, its famous brand rated power of the three-phase alternating-current motor of some oil pumper adapted even when having reached actual motion about the twelvefold of average power demand, from and cause three-phase alternating-current motor after dragging peak torque point, very fast appearance is exported excess energy to oil pumper, make the reciprocating member hypervelocity of drive system. cause that on the one hand down-hole plunger displacement pump suction is discontented, form the half-full phenomenon of dragging for, make pump be difficult to bring into play due effect, when exceeding the speed limit on the other hand the amplitude of the reciprocating member acceleration of large quality is increased, inertia load further increases, cause in upstroke, three-phase alternating-current motor appears drawing in the tail end of down stroke, produce brake torque, consume the remaining kinetic energy of system, so that the average energy index of the three-phase alternating-current motor of actual motion significantly descends, power factor is lower than 0.4, and average efficiency is about 55%.
For a long time, up to the present various countries' industry can, also fail effectively to solve this technical barrier all in effective solution of making great efforts to seek to overcome above-mentioned shortcoming and defect.
Summary of the invention
In order to overcome the shortcoming and defect of existing oil pumping unit actuating device, the utility model provides a kind of oil pumping unit actuating device, change-over circuit by three-phase alternating-current motor housing, stator core, three phase windings, cage rotor, armature spindle, end cap, bearing box, bearing, fan, fan housing, start-up and operation forms, and it is characterized in that: three phase winding tail ends of three-phase alternating-current motor are in series with by two or three-phase alternating current semiconductor switch speed probe and microprocessor control, that it is intermittently powered to three phase windings according to torque variation of crank axle in each stroke.
The three-phase alternating-current motor of the utility model oil pumping unit actuating device, after finishing the heavy load starting program of oil pumper with high-power Δ wiring, be transformed into the Y wiring operation of 1/3rd power, when three-phase alternating-current motor is in underloading and during to unloaded transition, turn-off semiconductor switch, stop to power to three phase windings, make three-phase alternating-current motor lossless, the negative torque of crank axle appearance when oil pumper, when drawing three-phase alternating-current motor, to being arranged on the inertial flywheel energy storage on the shaft extension behind the three-phase alternating-current motor, when crank axle the torque pulsation peak value occurs rotating speed is descended, flywheel is emitted kinetic energy and is assisted three-phase alternating-current motor to drag the peak torque, and flywheel has peak load shifting, the function of level and smooth pulsating torque.The change-over circuit of start-up and operation has the three-phase alternating current circuit breaker (1) that is connected between three-phase alternating-current supply and the three-phase alternating-current motor three phase winding head ends in the oil pumping unit actuating device, be connected between three phase winding tail ends and the head end, consist of the three-phase ac contactor (5) that three phase winding Δ wiring start, a three-phase input end electrically connects at three-phase alternating current winding tail end, the 3 phase AC solid relay (7) of its output three-phase shortcircuit is connected in parallel on one group of three-phase piezo-resistance (6) of 3 phase AC solid relay input, the control circuit terminal of 3 phase AC solid relay (7) and the output signal terminal of microprocessor electrically connect.When three-phase alternating-current motor is in underloading and during to unloaded transition, stops to eliminate the electrical loss of three-phase alternating-current motor to the power supply of three phase windings, realize saves energy.
Its subordinate feature is:
1, the inertia energy storage flywheel is being arranged behind the three-phase alternating-current motor armature spindle between shaft extension and the fan housing.
2, the change-over circuit of motor start-up and operation is comprised of a three-phase alternating current circuit breaker (1), a three-phase ac contactor (5), a 3 phase AC solid relay (7), one group of three-phase piezo-resistance (6), three-phase multifunctional protector, the approach switch (8) and the microprocessor that detect the three-phase alternating-current motor rotating speed.
3, rear end cap (9) puts in the three-phase alternating-current motor housing, and with fan housing be single piece.
4, speed probe uses approach switch, between the shaft extension cylindrical coding collar that is fixed on the armature spindle is arranged before the detection head of approach switch and the armature spindle.
5, there is the approach switch that is fixed on measurement three-phase alternating-current motor revolution on the bearing box in the bearing box outside.
6, intermittently be connected on the head end of motor three phase windings to the interchange semiconductor switch of three phase windings power supply.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is this oil pumping unit actuating device main circuit connection figure.
Fig. 2 be in the oil pumping unit actuating device behind armature spindle shaft extension the large rotating inertia flywheel is housed, half outline drawing of three-phase alternating-current motor and half vertical section structural map of approach switch is housed at front end housing.
Fig. 3 is that the Δ wiring of three phase windings in the oil pumping unit actuating device starts and the control circuit figure that is transformed into the Y wiring and moves according to the positive negative ripple amplitude of crankshaft torque intermittent power supply.
Fig. 4 is that the Δ wiring of second embodiment motor three phase winding starts and the control circuit figure that is transformed into Y wiring and the operation of controlled intermittent power supply.
Among the figure 1; the three-phase alternating current circuit breaker; 2; 6 lead-out wire binding posts of three phase windings; 3; the three-phase alternating-current motor terminal box; 4; the three-phase ac contactor binding post; 5; three-phase ac contactor; 6; piezo-resistance; 7; the 3 phase AC solid relay; 8; approach switch; 9; rear end cap; 10; cage rotor; 11; three phase windings of three-phase alternating-current motor; 12; ball bearing; 13; fan; 14; accumulated energy flywheel; 15; the flywheel shaft jacket gland; 16; fan housing; 17; the B phase of three-phase alternating-current supply; 18; stop botton; 19; single-phase circuit breaker; 20; start button; 21; normally opened contact on the three-phase ac contactor (5); 22; the contact of auxiliary relay (28); 23; time-delay relay; 24; contact in the time-delay relay; 25; the direct current negative pole of rectifier (34); 26. the contact in the auxiliary relay (28); 27; the dc control signal anode and cathode terminals of 3 phase AC solid relay (7); 28. auxiliary relay; 29. the normally-closed contact on the three-phase ac contactor; 30; the j2 signal relay that control solid-state relay (7) turn-on and turn-off are used; 31. run to when approaching zero load after oil pumper starts; make winding be converted to the j1 control signal relay of Y wiring operation by the Δ wiring; 32; contact in the auxiliary relay (28), the direct current output cathode of 33. rectifiers (34), 34; the 24V single-phase rectifier; 35; transformer 24V exchanges the winding connection terminal; 36; connect the A phase of three phase mains: 37; control 3 phase AC solid relay (7) makes the j1 control signal relay of its conducting; 38; control 3 phase AC solid relay (7) makes the j2 signal relay of its shutoff, 39; when sending a telegram here again after power supply grid has a power failure, start voluntarily the KK switch of oil pumper; 40; bearing box, 41; armature spindle.
Embodiment
Approach switch in Fig. 2 (8) is fixedly mounted on front end housing bearing box (40) outside, and to process one or two width in the detection head of approach switch (8) position corresponding with armature spindle (41) outer round surface be the axial groove of two times of detection head diameters or more shallow circular hole, on shaft extension behind the armature spindle in the three-phase alternating-current motor rear end cap outside, with the inertia energy storage flywheel (14) of the flat key of anti-rotation fixed installation with fan (13), and with screw flywheel shaft jacket gland (15) is fixed on the rear end face of armature spindle, then fan housing is installed on three-phase alternating-current motor housing rear end or the rear end cap.
In Fig. 1, three-phase alternating current circuit breaker (1), inner 6 lead-out wire binding posts (2), three-phase ac contactor (5), piezo-resistance (6), the 3 phase AC solid relay (7) of three-phase alternating-current motor terminal box (3) electrically connects by the main circuit loop of Fig. 1.
In Fig. 3; solenoid in stop botton (18), start button (20), the three-phase ac contactor (5), the contact of auxiliary relay (28) sequentially electrically connect; head end is received the B phase (17) of three-phase alternating current circuit breaker (1); the tail end earth connection; the contact (24) that three-phase ac contactor normally opened contact (21) in parallel and time-delay relay (23) and self-starting are used at the start button two ends; after needs have a power failure; self-starting oil pumper during incoming call just closes a floodgate single-phase circuit breaker (19).Otherwise should disconnect excision self-start circuit time-delay relay (23) and contact (24).
Oil pumper is a kind of heavy load starting, the equipment of light running, when normal operation, its required average operate power only has the 20%-30% of the three-phase alternating-current motor power of adapted, when actuator starts to running status to oil pumper, the revolutional slip S of motor is less than 1% the time, j1 signal relay (31) adhesive, contact (22) in the auxiliary relay (28) disconnects, three-phase ac contactor (5) is discharged, the triggering loop of 3 phase AC solid relay (7) is connected in contact (26), converts the motor winding to lower powered Y wiring operation by the Δ wiring.
Because three-phase alternating-current motor is superfluous to the oil pumper transferring energy in start-up course, the Accelerating running state appears in oil pumper this moment, the excess energy that stores when treating startup consumes, become and run slowly and make three-phase alternating-current motor revolutional slip S greater than 2% the time, j2 signal relay (30) adhesive, make 3 phase AC solid relay (7) conducting, three-phase alternating-current motor is used software feature driven oil-pumping machine and flywheel even running under 1/3rd power, during the 60%-70% of upstroke to be dragged to, the torque pulsation peak value appears in crank axle, the three-phase alternating-current motor slippage of software feature is increased, and flywheel discharges kinetic energy and assists three-phase alternating-current motor to drag the pulsation peak value.
Claims (7)
1. oil pumping unit actuating device, change-over circuit by three-phase alternating-current motor housing, stator core, three phase windings, cage rotor, armature spindle, end cap, bearing box, bearing, fan, fan housing, start-up and operation forms, and it is characterized in that: three phase winding tail ends of three-phase alternating-current motor are in series with by two or three-phase alternating current semiconductor switch speed probe and microprocessor control, that it is intermittently powered to three phase windings according to torque variation of crank axle in each stroke.
2. oil pumping unit actuating device according to claim 1 is characterized in that: the inertia energy storage flywheel is being arranged between shaft extension and the fan housing behind the three-phase alternating-current motor armature spindle.
3. oil pumping unit actuating device according to claim 1 is characterized in that: the change-over circuit of motor start-up and operation is comprised of a three-phase alternating current circuit breaker (1), a three-phase ac contactor (5), a 3 phase AC solid relay (7), one group of three-phase piezo-resistance (6), three-phase multifunctional protector, the approach switch (8) and the microprocessor that detect the three-phase alternating-current motor rotating speed.
4. oil pumping unit actuating device according to claim 1, it is characterized in that: rear end cap (9) puts in the three-phase alternating-current motor housing, and with fan housing be single piece.
5. oil pumping unit actuating device according to claim 1 is characterized in that: speed probe uses approach switch, between the front shaft extension cylindrical of the detection head of approach switch and armature spindle the coding collar that is fixed on the armature spindle is arranged.
6. oil pumping unit actuating device according to claim 1 is characterized in that: have outside the bearing box to be fixed on the approach switch of measuring the three-phase alternating-current motor rotating speed on the bearing box.
7. oil pumping unit actuating device according to claim 1 is characterized in that: the head end that intermittently is connected on motor three phase windings to the interchange semiconductor switch of three phase windings power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205162723U CN202798540U (en) | 2011-10-13 | 2012-09-19 | Actuator of oil pumping unit |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120388249 | 2011-10-13 | ||
| CN201120388249.6 | 2011-10-13 | ||
| CN2012205162723U CN202798540U (en) | 2011-10-13 | 2012-09-19 | Actuator of oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202798540U true CN202798540U (en) | 2013-03-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205162723U Expired - Fee Related CN202798540U (en) | 2011-10-13 | 2012-09-19 | Actuator of oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202798540U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051256A (en) * | 2011-10-13 | 2013-04-17 | 毕严富 | Dragging device of oil pumping unit |
| WO2020057823A1 (en) * | 2018-09-17 | 2020-03-26 | Arcelik Anonim Sirketi | Motor terminal for quick connection shift |
-
2012
- 2012-09-19 CN CN2012205162723U patent/CN202798540U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103051256A (en) * | 2011-10-13 | 2013-04-17 | 毕严富 | Dragging device of oil pumping unit |
| WO2020057823A1 (en) * | 2018-09-17 | 2020-03-26 | Arcelik Anonim Sirketi | Motor terminal for quick connection shift |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180801 Address after: 163515 Tai Po Road, Qing Pu village, Datong District, Daqing, Heilongjiang (9046) Patentee after: Daqing Heidimiao Heavy Oil Production Test Technology Development Co.,Ltd. Address before: 163458 room 3, 6-2 Yuen Yuen garden, 3, Daqing, Heilongjiang. Patentee before: Bi Yanfu |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20210919 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |