CN103184854A - Self-balancing digital pumping unit and working method - Google Patents
Self-balancing digital pumping unit and working method Download PDFInfo
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- CN103184854A CN103184854A CN2013101533687A CN201310153368A CN103184854A CN 103184854 A CN103184854 A CN 103184854A CN 2013101533687 A CN2013101533687 A CN 2013101533687A CN 201310153368 A CN201310153368 A CN 201310153368A CN 103184854 A CN103184854 A CN 103184854A
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Abstract
The invention discloses a self-balancing digital pumping unit and a working method. A motor operates at a constant speed under power frequency and is kept at a constant rotating speed under a frequency nonadjustable condition, but load is variable in real time, so that the output power of the motor has a violent undulatory property. The self-balancing digital pumping unit comprises a base (26), wherein the base is connected with an integrated control device; the integrated control device is connected with the motor (5) with a motor angular displacement sensor (6); the motor is connected with a reducer (8); the reducer is connected with a transverse ship (18) by a crank group; the transverse ship is connected with a walking beam (19); and the walking beam is connected with a counter balance (20) by a slide rail (30). The working method is used for the digital pumping unit.
Description
Technical field
The present invention relates to the digital oil pumper of a kind of self-balance type and method of work
Background technology
Beam pumping unit is to use frame for movement rotatablely moving of motor to be converted to the rectilinear motion of suspension point (polished rod).Usually, motor is in permanent rotating speed operation under power frequency, and motor keeps rotating speed constant under the nonadjustable condition of frequency, but because load is real-time change, the power output of motor presents violent fluctuation.The ratio of its peak power output and minimum output power is very big.Torque capacity when starting and very big at the minimum torque ratio of polished rod down stroke.If oil pumper is the bigger deviation of system balancing appearance in running, then normally move for keeping oil pumper, on balance weight was done manual work, namely idle work increased motor with some power consumption, and system effectiveness reduces.
Eliminate torque that this because load changing causes and the fluctuation of power, system is operated steadily be guarantee that oil pumper is normal, safety, the efficient key of using.Realize that even running only depends on change rotating speed of motor blindly or only makes an issue of at motor itself is far from being enough.Changing the distribution of rotating speed of motor and rotating speed is the most direct mode, (load well refers to: unfavorable factors such as feed flow abundance, nothing leakage, no sand card, no gas lock), motor is carried out the segmentation variable-speed operation can receive very good actual effect under downhole load condition in good condition.But along with the abrasion deformation of long pumping and equipment, the down-hole feed flow deficiency, leakage will occur and become big etc. problem and fault, and this will cause the original equilibrium relation of pumping unit system to be broken, and idle work increases, the pump efficiency step-down.And ground drive system is still pressed set mode operation owing to can't predict the down-hole state, and wearing and tearing and equilibrium state variation that this has just further aggravated equipment form vicious circle.If can predict the downhole load situation of change in advance, and utilize manual intervention or self-regulating mode Adjustment System equilibrium relation, change the generation that system running speed then can effectively prevent above-mentioned situation, make pumping unit system operate in the optimum state of efficient energy-saving all the time
Summary of the invention
The purpose of this invention is to provide the digital oil pumper of a kind of self-balance type and method of work.
Described purpose is achieved by the following scheme:
The digital oil pumper of a kind of self-balance type, its composition comprises: base, described base connects composite control apparatus, described composite control apparatus connects the motor that has the motor angular displacement sensor, described motor connects reductor, described reductor connects horizontal ship by the crank group, and described horizontal ship connects walking beam, and described walking beam connects balance weight by rail plate.
The digital oil pumper of described self-balance type, described walking beam connects head roll, described head roll connects pull line, described pull line connects described balance weight by tow lug, and the described pull line other end connects fixed pulley, and described walking beam connects horse head, described horse head connects polished rod eye, described head roll connects the low speed servo motor, and described rail plate has the self-locking spacing hole, and described rail plate is triangle rail plate or trapezoidal rail plate.
The digital oil pumper of described self-balance type, described base connects support, and described support connects support shaft, and described support shaft connects described balance weight, and described support shaft connects described reductor by described support.
The digital oil pumper of described self-balance type, described composite control apparatus comprises the comprehensive controller with control circuit, described comprehensive controller connects special converter and servo controller, described comprehensive controller connects described motor, described servo controller connects described servomotor, described control circuit comprises signal processing circuit, described signal processing circuit connects the dead center signal Acquisition Circuit, the angular displacement signal Acquisition Circuit, clock signal circuit, the angular displacement signal output circuit, dead center signal output circuit and comprehensive controller data communication circuit, described comprehensive controller all is connected the self-locking mechanism control module with described servo controller.
The digital oil pumper of described self-balance type is equipped with belt pulley set between described motor and the described reductor, and described belt pulley set comprises belt pulley, and described belt pulley connects belt and reductor, and the described belt other end connects described motor.
The digital oil pumper of described self-balance type, described bent axle group comprises crank axle, described crank axle is contained on the crank, described crank axle connects described reductor, and described crank connects pitman shaft, and described pitman shaft connects connecting rod, described connecting rod connects horizontal ship axle, and described horizontal ship axle connects described horizontal ship.
The digital oil pumper of described self-balance type, described crank other end connecting crank balance weight, described crank axle, described crank, described connecting rod, support are some connections.
The digital oil pumper of described self-balance type, described reductor connects brake gear, and described reductor connects the bearing in reduction gears enclosing cover, and described bearing in reduction gears enclosing cover connects dead point sensor receiving pole, described reductor has rotating shaft, and described rotating shaft connects the dead point sensor emission utmost point.
The method of work of the digital oil pumper of a kind of self-balance type, the comprehensive controller utilization is built in the feedback information of the electric energy detection unit in the special converter, draw the difference of the maximum energy consumption value in the upper and lower stroke of down-hole load condition and oil pumper, amount of unbalance and the adjustment direction of pumping unit system, to instruct accordingly then and send to servo controller, and simultaneously the balance weight self-locking mechanism is sent unlock command, move on request by servo-driver control servomotor behind the signal of receiving the release success, the pulling walking-beam counterweight carries out balance adjustment; Comprehensive controller utilizes the electric energy detection unit constantly to detect the aequum deviation in the adjustment process, sends halt instruction to servo-driver after waiting to reach requirement, controls self-locking mechanism then balance weight is locked.
The method of work of the digital oil pumper of described self-balance type, install the balance weight rail plate additional on walking beam top, balance weight places on the guide rail and can be free to slide, tow lug is installed at the balance weight two ends respectively, and be connected with it through pulley mechanism by pull line, pull line is wrapped in the head roll surface, and head roll is connected with the low speed servo machine shaft and rotation synchronously, and the comprehensive controller interface of servomotor controller links to each other with comprehensive controller and is subjected to its instruction control.Comprehensive controller carries out the balance of well pumping unit degree according to the detected data of each sensor and calculates, and according to result of calculation control servo controller drive motors rotating operation, drives walking-beam counterweight and moves the Adjustment System degree of balance then.
The invention has the beneficial effects as follows:
The present invention is installed full walking beam self balancing device additional on the walking beam top of digital beam-pumping unit; and under non-stop-machine situation, regulate the position of walking-beam counterweight automatically according to the instruction that the Comprehensive Control instrument system of digital beam-pumping unit provides, whole beam-pumping unit system is moved all the time in the state of stable balance.
The present invention installs various sensors except the different motion position at traditional beam pumping unit, in order to the motion state of oil pumper various piece is carried out outside the data acquisition arrangement, install a full walking beam self balancing device of being formed by servo electrical machinery system, trailer system, walking-beam counterweight and balance block self locking mechanism additional on walking beam top, under the instruction of comprehensive controller, move, can adjust the degree of balance of oil pumper in real time.
The present invention is because the quality of walking-beam counterweight is bigger, is not prone to inertia moves in the walking beam motion process if do not reinforce rule, may influence safety and the stability of oil pumper operation; Therefore the walking-beam counterweight at full walking beam self balancing device has installed the balance weight self-locking mechanism additional, and this mechanism can make walking-beam counterweight free movable under the pulling of pull line according to comprehensive controller order release in the self balancing device course of work; This mechanism can lock walking-beam counterweight according to the comprehensive controller signal after the balance adjustment finishes, and prevents that it is free to slide; Guarantee the safety under the full situation, prevent because the comprehensive controller system failure causes self-locking mechanism malfunctioning that this self-locking mechanism adopts the dead electricity lock mode.
The present invention realizes the real closed-loop control of ground oil production equipment and downhole load state (hole condition), also can adjust the equilibrium state of oil pumper according to the downhole load situation in real time, is not shutting down, and does not need under the situation of manual intervention oil pumper to be moved by optimum state.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention.
Accompanying drawing 2 is structural representations of reductor in the accompanying drawing 1.
Accompanying drawing 3 is theory diagrams of accompanying drawing 1 and accompanying drawing 2.
Accompanying drawing 4 is structural representations of walking beam in accompanying drawing 1 and the accompanying drawing 2
Accompanying drawing 5 is circuit diagrams of accompanying drawing 1 and accompanying drawing 2.
The specific embodiment
Elaborate the preferred embodiment of the present invention below in conjunction with accompanying drawing.
Embodiment one
The digital oil pumper of a kind of self-balance type, shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, accompanying drawing 5, its composition comprises: base 26, described base connects composite control apparatus, described composite control apparatus connects the motor 5 that has motor angular displacement sensor 6, and described motor connects reductor 8, and described reductor connects horizontal ship 18 by the crank group, described horizontal ship connects walking beam 19, and described walking beam connects balance weight 20 by rail plate 30.
The servo-driver of digital pumping unit system optimization operation comprehensive controller and special converter and self-balancing system is installed in the same casing, and trailer system, walking-beam counterweight are installed in the walking beam top of digital beam-pumping unit.
Embodiment two
The difference of present embodiment and embodiment one is, as shown in Figure 1, the digital oil pumper of described self-balance type, described walking beam connects head roll 15, described head roll connects pull line 17, described pull line connects described balance weight by tow lug, the described pull line other end connects fixed pulley 23, described walking beam connects horse head 24, described horse head connects polished rod eye 25, described head roll connects low speed servo motor 16, and described rail plate has self-locking spacing hole 33, and described rail plate is the triangle rail plate.
Embodiment three
The difference of present embodiment and embodiment one is, as shown in Figure 1, and the digital oil pumper of described self-balance type, described base connects support 22, described support connects support shaft 21, and described support shaft connects described balance weight, and described support shaft connects described reductor by described support.
Embodiment four
The difference of present embodiment and embodiment one is, as accompanying drawing 1, shown in the accompanying drawing 5, the digital oil pumper of described self-balance type, described composite control apparatus comprises the comprehensive controller 1 with control circuit, described comprehensive controller connects special converter 2 and servo controller 3, described comprehensive controller connects described motor, described servo controller connects described servomotor, described control circuit comprises signal processing circuit 37, described signal processing circuit connects dead center signal Acquisition Circuit 35, angular displacement signal Acquisition Circuit 36, clock signal circuit 38, angular displacement signal output circuit 39, dead center signal output circuit 40 and comprehensive controller data communication circuit 31, described comprehensive controller all is connected self-locking mechanism control module 34 with described servo controller.
Described dead center signal Acquisition Circuit 35 is connected and composed by pull-up resistor R3, filter capacitor C4, and the signal input improves level by pull-up resistor R3 and exports after filter capacitor C4 eliminates interference raising signal quality.
Described angular displacement signal Acquisition Circuit 36 is connected and composed by pull-up resistor R2, filter capacitor C3, and the signal input improves level by pull-up resistor R2 and exports after filter capacitor C3 eliminates interference raising signal quality.
Described signal processing circuit 37 is made up 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.
Described clock signal circuit 38 is made up of quartz body oscillator Y1, filter capacitor C7, C8, for SCM system provides the stable clock signal.
Described angular displacement signal output circuit 39 is made of current-limiting resistance R17, divider resistance R18, power amplification triode Q2 and filter capacitor C10.
Described dead center signal output circuit 40 is made of current-limiting resistance R14, divider resistance R15, power amplification triode Q1 and filter capacitor C9.
Described comprehensive controller data communication circuit 31 is made up of special-purpose communication circuit module, sends the data that SCM system is sent here with the form of MODBUS agreement.
Embodiment five
The difference of present embodiment and embodiment one is, shown in accompanying drawing 1, accompanying drawing 2, the digital oil pumper of described self-balance type, between described motor and the described reductor belt pulley set is housed, described belt pulley set comprises belt pulley 7, described belt pulley connects belt 32 and reductor, and the described belt other end connects described motor.
Embodiment six
The difference of present embodiment and embodiment one is, shown in accompanying drawing 1, accompanying drawing 2, the digital oil pumper of described self-balance type, described bent axle group comprises crank axle 9, and described crank axle is contained on the crank 10, and described crank axle connects described reductor, described crank connects pitman shaft 11, described pitman shaft connects connecting rod 12, and described connecting rod connects horizontal ship axle 14, and described horizontal ship axle connects described horizontal ship.
Embodiment seven
The difference of present embodiment and embodiment one is, as shown in Figure 1, the digital oil pumper of described self-balance type, described crank other end connecting crank balance weight 13, described crank axle, described crank, described connecting rod, support are some connections.
Embodiment eight
The difference of present embodiment and embodiment one is, shown in accompanying drawing 1, accompanying drawing 2, the digital oil pumper of described self-balance type, described reductor connects brake gear 4, described reductor connects bearing in reduction gears enclosing cover 27, described bearing in reduction gears enclosing cover connects dead point sensor receiving pole 28, and described reductor has rotating shaft, and described rotating shaft connects the dead point sensor emission utmost point 29.
Embodiment nine
The difference of present embodiment and embodiment two is that as shown in Figure 1, the digital oil pumper of described self-balance type, described rail plate are trapezoidal rail plate.
Embodiment ten
The method of work of the digital oil pumper of a kind of self-balance type, the comprehensive controller utilization is built in the feedback information of the electric energy detection unit in the special converter, draw the difference of the maximum energy consumption value in the upper and lower stroke of down-hole load condition and oil pumper, amount of unbalance and the adjustment direction of pumping unit system, to instruct accordingly then and send to servo controller, and simultaneously the balance weight self-locking mechanism is sent unlock command, move on request by servo-driver control servomotor behind the signal of receiving the release success, the pulling walking-beam counterweight carries out balance adjustment; Comprehensive controller utilizes the electric energy detection unit constantly to detect the aequum deviation in the adjustment process, sends halt instruction to servo-driver after waiting to reach requirement, controls self-locking mechanism then balance weight is locked.
The difference of present embodiment and embodiment ten is, the method of work of the digital oil pumper of described self-balance type, install the balance weight rail plate additional on walking beam top, balance weight places on the guide rail and can be free to slide, tow lug is installed at the balance weight two ends respectively, and be connected with it through pulley mechanism by pull line, pull line is wrapped in the head roll surface, head roll is connected with the low speed servo machine shaft and rotation synchronously, and the comprehensive controller interface of servomotor controller links to each other with comprehensive controller and is subjected to its instruction control.Comprehensive controller carries out the balance of well pumping unit degree according to the detected data of each sensor and calculates, and according to result of calculation control servo controller drive motors rotating operation, drives walking-beam counterweight and moves the Adjustment System degree of balance then.
Present embodiment is the protection domain that the exemplary illustration of this patent is not limited it; those skilled in the art can also carry out the part to it and change; the short of spiritual essence that exceeds this patent all is considered as the replacement that is equal to this patent, all within the protection domain of this patent
Claims (10)
1. digital oil pumper of self-balance type, its composition comprises: base, it is characterized in that described base connects composite control apparatus, described composite control apparatus connects the motor that has the motor angular displacement sensor, described motor connects reductor, described reductor connects horizontal ship by the crank group, and described horizontal ship connects walking beam, and described walking beam connects balance weight by rail plate.
2. the digital oil pumper of self-balance type according to claim 1, it is characterized in that described walking beam connects head roll, described head roll connects pull line, described pull line connects described balance weight by tow lug, the described pull line other end connects fixed pulley, described walking beam connects horse head, described horse head connects polished rod eye, described head roll connects the low speed servo motor, described rail plate has the self-locking spacing hole, and described rail plate is triangle rail plate or trapezoidal rail plate.
3. the digital oil pumper of self-balance type according to claim 1 is characterized in that described base connects support, and described support connects support shaft, and described support shaft connects described balance weight, and described support shaft connects described reductor by described support.
4. the digital oil pumper of self-balance type according to claim 1, it is characterized in that described composite control apparatus comprises the comprehensive controller with control circuit, described comprehensive controller connects special converter and servo controller, described comprehensive controller connects described motor, described servo controller connects described servomotor, described control circuit comprises signal processing circuit, described signal processing circuit connects the dead center signal Acquisition Circuit, the angular displacement signal Acquisition Circuit, clock signal circuit, the angular displacement signal output circuit, dead center signal output circuit and comprehensive controller data communication circuit, described comprehensive controller all is connected the self-locking mechanism control module with described servo controller.
5. the digital oil pumper of self-balance type according to claim 1, it is characterized in that between described motor and the described reductor belt pulley set being housed, described belt pulley set comprises belt pulley, and described belt pulley connects belt and reductor, and the described belt other end connects described motor.
6. the digital oil pumper of self-balance type according to claim 1, it is characterized in that described bent axle group comprises crank axle, described crank axle is contained on the crank, described crank axle connects described reductor, described crank connects pitman shaft, described pitman shaft connects connecting rod, and described connecting rod connects horizontal ship axle, and described horizontal ship axle connects described horizontal ship.
7. the digital oil pumper of self-balance type according to claim 6 is characterized in that described crank other end connecting crank balance weight, and described crank axle, described crank, described connecting rod, support are some connections.
8. according to claim 1 or 3 or the 5 or 6 digital oil pumpers of described self-balance type, it is characterized in that described reductor connects brake gear, described reductor connects the bearing in reduction gears enclosing cover, described bearing in reduction gears enclosing cover connects dead point sensor receiving pole, described reductor has rotating shaft, and described rotating shaft connects the dead point sensor emission utmost point.
9. the method for work of the digital oil pumper of self-balance type, it is characterized in that the comprehensive controller utilization is built in the feedback information of the electric energy detection unit in the special converter, draw on down-hole load condition and the oil pumper, the difference of the maximum energy consumption value in the down stroke, the amount of unbalance of pumping unit system and adjustment direction, to instruct accordingly then and send to servo controller, and simultaneously the balance weight self-locking mechanism is sent unlock command, move on request by servo-driver control servomotor behind the signal of receiving the release success, the pulling walking-beam counterweight carries out balance adjustment; Comprehensive controller utilizes the electric energy detection unit constantly to detect the aequum deviation in the adjustment process, sends halt instruction to servo-driver after waiting to reach requirement, controls self-locking mechanism then balance weight is locked.
10. the method for work of the digital oil pumper of self-balance type according to claim 9, it is characterized in that installing the balance weight rail plate additional on walking beam top, balance weight is placed on guide rail and can be free to slide, bail is installed respectively at the balance weight two ends, and by pull line, through pulley mechanism, with it, be connected, pull line is wrapped in the head roll surface, head roll is connected with the low speed servo machine shaft and synchronous rotary, the comprehensive controller interface of servomotor controller is connected with comprehensive controller and controlled by its instruction
Comprehensive controller carries out the balance of well pumping unit degree according to the detected data of each sensor and calculates, and according to result of calculation control servo controller drive motors rotating operation, drives walking-beam counterweight and moves the Adjustment System degree of balance then.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310153368.7A CN103184854B (en) | 2013-04-28 | 2013-04-28 | The digital oil pumper of self-balance type and method of work |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310153368.7A CN103184854B (en) | 2013-04-28 | 2013-04-28 | The digital oil pumper of self-balance type and method of work |
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| CN103184854A true CN103184854A (en) | 2013-07-03 |
| CN103184854B CN103184854B (en) | 2016-05-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103615216A (en) * | 2013-11-01 | 2014-03-05 | 延长油田股份有限公司 | Low-yield well numerically controlled oil pipe oil bailing device and oil bailing method |
| CN104533353A (en) * | 2014-12-31 | 2015-04-22 | 大港油田集团有限责任公司 | Energy saving method for beam-pumping unit |
| CN113530495A (en) * | 2020-04-13 | 2021-10-22 | 北京达科轩传动技术有限公司 | Non-uniform speed driving mode of beam-pumping unit |
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|---|---|
| CN103184854B (en) | 2016-05-18 |
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