CN103244078A - Numerical-control system device of beam-pumping unit - Google Patents
Numerical-control system device of beam-pumping unit Download PDFInfo
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Abstract
Disclosed is a numerical-control system device of a beam-pumping unit. The numerical-control system device comprises a single chip microcomputer system (1) and a motor (2). The single chip microcomputer system (1) is provided with a mainboard signal terminal a and a mainboard signal terminal b, the motor is connected with a speed reduce (4) by a belt pulley set and is connected with a motor angular displacement sensor (3), and the speed reducer is connected with a rotary dead point sensor (5). The numerical-control system device is used for performing full-system dynamic positioning for the beam-pumping unit.
Description
Technical field
The present invention relates to a kind of beam pumping unit digital control system device.
Background technology
Beam pumping unit be in oil field extensively, a large amount of oil recovery machiners that use, compare the advantage such as there is simple in structure, dependable performance, maintenance maintenance is convenient than the oil recovery machiner of other types.But beam pumping unit is because of its intrinsic quadric chain, make displacement, speed and the accelerating curve of point suspension movement be presented as the approximate just regularity of distribution of (remaining) string function, this unalterable characteristics of motion adds that the impact of the unfavorable factors such as the polytropy of downhole load and polished rod deformation makes conventional beam pumping unit the problems such as system loss is large, efficiency is low, equipment failure rate is high occur.
According to structural mechanics and fluid mechanics principle, suitable point suspension movement VELOCITY DISTRIBUTION pattern can obviously play the effect that reduces the pump efficiency loss and alleviate sucker rod load.Change the VELOCITY DISTRIBUTION pattern that Pumping Unit (as two Horse Beam Pumping Units and straight line tower shelf type oil pumping machine) can change the motion of oil pumper suspension point, but due to it not in conjunction with actual downhole load, it is control adjustment very blindly, can not approach and reach desirable point suspension movement VELOCITY DISTRIBUTION pattern from basic to greatest extent, the energy consumption of whole pumping unit system is controlled and also can't be played corresponding effect.By the effective combination in the ground of beam pumping unit system and down-hole, each motion parts of beam pumping unit is carried out to accurate dynamically real-time location, make beam pumping unit set up reliable movement position corresponding relation from power source (motor) to final POL (suspension point), and utilize sensor technology and special mathematic calculation Real-Time Monitoring and feedback downhole load state and adjust the oil pumper speed of service and moment of torsion is the optimal path of dealing with problems.
Chinese patent CN200620200333.X discloses a kind of the pumping unit donkey head-shaped unit of slide beam, and the pumping unit donkey head-shaped unit of slide beam is positioned by cam, and cam wear is fast, and locating effect is inaccurate.
Summary of the invention
The purpose of this invention is to provide that a kind of multi-point sensing on beam pumping unit and professional frequency converter and oil pumper comprehensive controller form by being arranged on, derive the time of day of downhole load according to the data variation of sensor signal and electric power signal, ground and down-hole are organically combined, reach the purpose beam pumping unit digital control system device of optimal control.
Described purpose is achieved by the following scheme:
A kind of beam pumping unit digital control system device, its composition comprises: SCM system, motor with mainboard signal terminal a and mainboard signal terminal b, described motor connects reductor by belt pulley set, described motor connects the motor angular displacement sensor, and described reductor connects rotary dead point sensor.
Described beam pumping unit digital control system device, described reductor connecting crank, described crank connects balance weight, support and connecting rod, and described connecting rod all is connected walking beam with described support, and described walking beam connects strain-type dead point sensor or angled type dead point sensor.
Described beam pumping unit digital control system device, described walking beam connects horse head, and described horse head connects polished rod eye by lifting rope; Between described walking beam and described support, support shaft is housed, between described walking beam and described connecting rod, pitman shaft is housed, be connected by crank between described support, described connecting rod and described crank, relatively rotate between described support, described connecting rod, described crank.
Described beam pumping unit digital control system device, described reductor all is connected base with described support, and described reductor has speed reducer output shaft, and described motor has motor output shaft; Described belt pulley set comprises motor pulley, and described motor pulley connects the reductor belt pulley by belt, and described reductor belt pulley is contained on described speed reducer output shaft, and described motor pulley is contained on described motor output shaft.
Described beam pumping unit digital control system device, described motor angular displacement sensor has signal processing circuit, and described signal processing circuit connects dead center signal Acquisition Circuit, angular displacement signal Acquisition Circuit, clock signal circuit, angular displacement signal output circuit, dead center signal output circuit, host computer data communication circuit.
Described beam pumping unit digital control system device, described angular displacement signal output circuit comprises power amplification triode Q2, described power amplification triode Q2 connects current-limiting resistance R17, divider resistance R18 and filter capacitor C10, described current-limiting resistance R17 connects described divider resistance R18, and described divider resistance R17 connects described signal processing circuit.
Described beam pumping unit digital control system device, described angular displacement signal output circuit comprises power amplification triode Q1, described power amplification triode Q1 connects current-limiting resistance R14, divider resistance R15 and filter capacitor 9, described current-limiting resistance R14 connects described divider resistance R15, and described divider resistance R14 connects described signal processing circuit.
Described beam pumping unit digital control system device, described clock signal circuit comprises quartz body oscillator Y1, and described quartz body oscillator Y1 connects filter capacitor C7 and filter capacitor C8, and described quartz body oscillator Y1 connects described signal processing circuit.
The invention has the beneficial effects as follows:
The present invention utilizes the multipoint sensor be arranged on the beam pumping unit diverse location to carry out the data acquisition arrangement to the motion state of oil pumper various piece, position factor and torque factor in conjunction with known beam pumping unit, built-in dedicated program and the computational methods of recycling master system are carried out the system synthesis location, can go out according to the state that the rotatablely moves direct derivation of motor the rectilinear motion state of suspension point.
The present invention can be according to being arranged on the angular displacement sensor on motor-shaft extending and being arranged on the signal of telecommunication that the dead point sensor on crank axle provides, calculate effective gearratio of beam pumping unit, by with in host computer in advance the standard gearratio of the equipment of storage compare and can detect beam pumping unit system and whether have the problem of skidding, and degree of skidding is how many.Warning system by peripheral hardware can show the problem of skidding and corresponding processing method, deal with data, and the convenient belt tension band of adjusting in time, guarantee the equipment high efficiency running.
With the special inspecting equipment that adopts complex and expensive, with downhole sensor, compare, the present invention does not need the special equipments such as erector figure instrument, only utilize motor angular displacement sensor and oil pumper dead point sensor to detect respectively and provide the motion state information of motor, crank, walking beam and polished rod, by comparing and revising, structure is speed transitive relation, the gearratio to final POL by power source, for master system carries out closed loop according to equipment and condition of loading, accurately controls and sets up a complete coordinate-system.Fundamentally solved the caused ratio error problem of belt slipping of pumping unit, made process variable more accurately and reliably.
The present invention utilizes the energy monitor function of master system and motor driver, realize the real closed-loop control of ground oil production equipment and downhole load state (hole condition), for the mode with numerical control reaches for adopting balance, improves pump efficiency, reduces the wastage, reduces equipment attrition, the extension device life cycle provides a shortcut.
By being arranged on, multi-point sensing on beam pumping unit and professional frequency converter and oil pumper comprehensive controller form in the present invention, derive the time of day of downhole load according to the data variation of sensor signal and electric power signal, ground and down-hole are organically combined, reach the purpose beam pumping unit digital control system device of optimal control.
The accompanying drawing explanation
Accompanying drawing 1 is the structural representation that the present invention has rotary dead point sensor.
Accompanying drawing 2 is structural representations that the present invention has strain-type dead point sensor.
Accompanying drawing 3 is structural representations that the present invention has angled type dead point sensor.
Accompanying drawing 4 is to have the structural representation of the reductor of rotary dead point sensor in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3.
Accompanying drawing 5 is circuit diagrams of the present invention.
The specific embodiment
Elaborate the preferred embodiment of the present invention below in conjunction with accompanying drawing.
Embodiment mono-
A kind of beam pumping unit digital control system device, as shown in accompanying drawing 1, accompanying drawing 4, accompanying drawing 5, its composition comprises: SCM system 1, the described motor of motor 2 with mainboard signal terminal a and mainboard signal terminal b are connected reductor 4 by belt pulley set, described motor connects motor angular displacement sensor 3, and described reductor connects rotary dead point sensor 5.
The motor angular displacement sensor is arranged on the second shaft extension end (fan end) of beam pumping unit drive motors, and the supporting installation of sensor of corresponding size is arranged according to the different motor diameters of axle; Rotary dead point installation of sensors is on the speed reducer output shaft 19 of beam pumping unit, and between crank and reductor, wherein emitter stage 17 is fixed on speed reducer output shaft, and with the crank synchronous rotary.Receiving pole 18 (induction pole) is fixed on speed reducer output shaft bearing end cover 16; The motor angular displacement sensor is connected with SCM system and the position/displacement signal detected is sent in SCM system with rotary dead point sensor.
Embodiment bis-
The difference of the present embodiment and embodiment mono-is, as shown in Figure 2, described beam pumping unit digital control system device, described reductor connecting crank 6, described crank connects balance weight 14, support 7 and connecting rod 13, described connecting rod all is connected walking beam 8 with described support, and described walking beam connects strain-type dead point sensor 20.Strain-type dead point installation of sensors is directly over the walking beam upper bracket axle of beam pumping unit; The motor angular displacement sensor is connected with SCM system and the position/displacement signal detected is sent in SCM system with strain-type dead point sensor.
Embodiment tri-
The difference of the present embodiment and embodiment bis-is, described beam pumping unit digital control system device, described walking beam connection angle formula dead point sensor 21.Angled type dead point installation of sensors is on the support shaft of beam pumping unit support upper end; The motor angular displacement sensor is connected with the angled type SCM system and the position/displacement signal detected is sent in SCM system with the dead point sensor.
Embodiment tetra-
The difference of the present embodiment and embodiment bis-or embodiment tri-is, as shown in accompanying drawing 2, accompanying drawing 3, and described beam pumping unit digital control system device, described walking beam connects horse head 10, and described horse head connects polished rod eyes 12 by lifting rope 11; Between described walking beam and described support, support shaft 9 is housed, between described walking beam and described connecting rod, pitman shaft 29 is housed, be connected by crank between described support, described connecting rod and described crank, relatively rotate between described support, described connecting rod, described crank.
Embodiment five
The difference of the present embodiment and embodiment bis-or embodiment tri-is, as shown in accompanying drawing 2, accompanying drawing 3, described beam pumping unit digital control system device, described reductor all is connected base 15 with described support, described reductor has speed reducer output shaft, and described motor has motor output shaft; Described belt pulley set comprises motor pulley, and described motor pulley connects the reductor belt pulley by belt 30, and described reductor belt pulley is contained on described speed reducer output shaft, and described motor pulley is contained on described motor output shaft.
Embodiment six
The difference of the present embodiment and embodiment mono-or embodiment bis-or embodiment tri-is, as shown in Figure 5, described beam pumping unit digital control system device, described motor angular displacement sensor has signal processing circuit 24, and described signal processing circuit connects dead center signal Acquisition Circuit 22, angular displacement signal Acquisition Circuit 23, clock signal circuit 25, angular displacement signal output circuit 26, dead center signal output circuit 27, host computer data communication circuit 28.
The dead center signal Acquisition Circuit, connected and composed by pull-up resistor R3, filter capacitor C4, and the signal input improves level by pull-up resistor R3 and eliminates after interference improves signal quality and export through filter capacitor C4.
The angular displacement signal Acquisition Circuit, connected and composed by pull-up resistor R2, filter capacitor C3, and the signal input improves level by pull-up resistor R2 and eliminates after interference improves signal quality and export through filter capacitor C3.
Signal processing circuit, be comprised of single-chip microcomputer, data storage and arithmetic unit, and the sensor signal that signal acquisition circuit is sended over is carried out position, frequency multiplication and particular algorithm processing and speed, position computing.
Clock signal circuit, be comprised of quartz body oscillator Y1, filter capacitor C7, C8, for SCM system provides stable clock signal.
The angular displacement signal output circuit, consist of current-limiting resistance R17, divider resistance R18, power amplification triode Q2 and filter capacitor C10.
The dead center signal output circuit, consist of current-limiting resistance R14, divider resistance R15, power amplification triode Q1 and filter capacitor C9.
Host computer data communication circuit, be comprised of the Special communication circuit module, the data of sending here with the form transmission SCM system of MODBUS agreement.
Embodiment seven
The difference of the present embodiment and embodiment six is, as shown in Figure 5, described beam pumping unit digital control system device, described angular displacement signal output circuit comprises power amplification triode Q2, described power amplification triode Q2 connects current-limiting resistance R17, divider resistance R18 and filter capacitor C10, described current-limiting resistance R17 connects described divider resistance R18, and described divider resistance R17 connects described signal processing circuit.
Embodiment eight
The difference of the present embodiment and embodiment six is, as shown in Figure 5, described beam pumping unit digital control system device, described angular displacement signal output circuit comprises power amplification triode Q1, described power amplification triode Q1 connects current-limiting resistance R14, divider resistance R15 and filter capacitor 9, described current-limiting resistance R14 connects described divider resistance R15, and described divider resistance R14 connects described signal processing circuit.
Embodiment nine
The difference of the present embodiment and embodiment six is, described beam pumping unit digital control system device, described clock signal circuit comprises quartz body oscillator Y1, described quartz body oscillator Y1 connects filter capacitor C7 and filter capacitor C8, and described quartz body oscillator Y1 connects described signal processing circuit.
Embodiment ten
The difference of the present embodiment and embodiment mono-is, described beam pumping unit digital control system device, and the effective gearratio formula that calculates beam pumping unit is design formulas
m wherein: gearratio (motor side: crank end),
Q1: the number of turns (being recorded by the motor angular displacement sensor) of motor rotation in the unit interval,
Q2: the number of turns (being recorded by the dead point sensor) of unit interval inside crank rotation,
E: motor angular displacement sensor resolution ratio.
Present embodiment is the exemplary illustration of this patent not to be limited to its protection domain; those skilled in the art can also carry out part to it and change; as long as no the Spirit Essence that exceeds this patent, all be considered as the replacement that is equal to this patent, all within the protection domain of this patent.
Claims (8)
1. a beam pumping unit digital control system device, its composition comprises: SCM system, motor with mainboard signal terminal a and mainboard signal terminal b, it is characterized in that described motor connects reductor by belt pulley set, described motor connects the motor angular displacement sensor, and described reductor connects rotary dead point sensor.
2. beam pumping unit digital control system device according to claim 1, it is characterized in that described reductor connecting crank, described crank connects balance weight, support and connecting rod, described connecting rod all is connected walking beam with described support, and described walking beam connects strain-type dead point sensor or angled type dead point sensor.
3. beam pumping unit digital control system device according to claim 2, is characterized in that described walking beam connects horse head, and described horse head connects polished rod eye by lifting rope; Between described walking beam and described support, support shaft is housed, between described walking beam and described connecting rod, pitman shaft is housed, be connected by crank between described support, described connecting rod and described crank, relatively rotate between described support, described connecting rod, described crank.
4. beam pumping unit digital control system device according to claim 2, is characterized in that described reductor all is connected base with described support, and described reductor has speed reducer output shaft, and described motor has motor output shaft; Described belt pulley set comprises motor pulley, and described motor pulley connects the reductor belt pulley by belt, and described reductor belt pulley is contained on described speed reducer output shaft, and described motor pulley is contained on described motor output shaft.
5. beam pumping unit digital control system device according to claim 1 and 2, it is characterized in that described motor angular displacement sensor has signal processing circuit, described signal processing circuit connects dead center signal Acquisition Circuit, angular displacement signal Acquisition Circuit, clock signal circuit, angular displacement signal output circuit, dead center signal output circuit, host computer data communication circuit.
6. beam pumping unit digital control system device according to claim 5, it is characterized in that described angular displacement signal output circuit comprises power amplification triode Q2, described power amplification triode Q2 connects current-limiting resistance R17, divider resistance R18 and filter capacitor C10, described current-limiting resistance R17 connects described divider resistance R18, and described divider resistance R17 connects described signal processing circuit.
7. beam pumping unit digital control system device according to claim 5, it is characterized in that described angular displacement signal output circuit comprises power amplification triode Q1, described power amplification triode Q1 connects current-limiting resistance R14, divider resistance R15 and filter capacitor 9, described current-limiting resistance R14 connects described divider resistance R15, and described divider resistance R14 connects described signal processing circuit.
8. beam pumping unit digital control system device according to claim 5, it is characterized in that described clock signal circuit comprises quartz body oscillator Y1, described quartz body oscillator Y1 connects filter capacitor C7 and filter capacitor C8, and described quartz body oscillator Y1 connects described signal processing circuit.
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| CN103233721A (en) * | 2013-04-28 | 2013-08-07 | 哈尔滨索菲电气技术有限公司 | Beam pumping machine ground mechanical system dynamic location method and device |
| CN103256024A (en) * | 2013-04-28 | 2013-08-21 | 哈尔滨索菲电气技术有限公司 | Method and device for engineering measurement of position factor and torque factor of beam-pumping unit |
| CN108111085A (en) * | 2018-01-24 | 2018-06-01 | 深圳市英威腾电气股份有限公司 | A kind of electric-driving installation, frequency converter and its motor control method |
| CN112392465A (en) * | 2020-12-03 | 2021-02-23 | 中国石油天然气股份有限公司 | Low-stroke-frequency oil well polish rod indicator diagram testing device and using method |
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| CN112392465B (en) * | 2020-12-03 | 2024-03-26 | 中国石油天然气股份有限公司 | Low-stroke-frequency oil well polish rod indicator diagram testing device and using method |
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