CN103883289A - Novel beam-pumping unit dynamic balance intelligent adjusting device - Google Patents
Novel beam-pumping unit dynamic balance intelligent adjusting device Download PDFInfo
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- CN103883289A CN103883289A CN201410157046.4A CN201410157046A CN103883289A CN 103883289 A CN103883289 A CN 103883289A CN 201410157046 A CN201410157046 A CN 201410157046A CN 103883289 A CN103883289 A CN 103883289A
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Abstract
The invention relates to a novel beam-pumping unit dynamic balance intelligent adjusting device, and belongs to the technical field of control of oil field oil production machines. The beam-pumping unit dynamic balance intelligent adjusting device is characterized in that a servo motor is fixedly installed on the right in a shell, a lead screw is installed on the left of the shell through a bearing block, a bearing guide rail is installed on the left in the shell, and a rider plastic bellows is installed on the lead screw; the servo motor is connected with the lead screw through a coupler; a swing rod which is movably connected with a rider through a connecting rod is installed at the left end of the shell, a balance box is installed on the swing rod, and the servo motor is connected with a digital control cabinet on the ground through a signal line. The beam-pumping unit dynamic balance intelligent adjusting device is fixed to the tail of a walking beam, an original structure is unchanged, the servo motor is controlled by a control system to work, remote control can be achieved, the balance adjusting range is wide, and the balance effect is good. The adaptability of the device to oil field severe environments is high, the service life of the whole balance device is prolonged, and the problems that an electromotor of an existing pumping unit needs to be high in power, and when the electromotor works in a low power factor state, mains supply quality becomes poor are solved.
Description
Technical field
The present invention relates to a kind of novel beam dynamic balance of oil pumping unit intelligent regulating device, belong to oil extraction in oil field machinery and automatic control technology field, ground.
Background technology
The work characteristics of oil pumper sucker rod pumping system is: in a complete stroke cycle, oil pumping machine polished rod load changes greatly, and upstroke horse head suspension point need be mentioned sucker rod and oil column, and at this moment motor will be paid very large energy; During to down stroke, sucker rod relies on deadweight just can fall, and does not only need motor to pay energy, to motor acting, makes motor in generating state on the contrary.The uneven load being subject in up-down stroke in order to reduce motor, generally adds bascule on existing oil pumper.Conventional beam pumping unit adopts crank balance mode, and the feedback energy that down stroke polished rod load falls and engine jointly, to crank balance device acting, convert it into potential energy and store; Upstroke crank balance device discharges potential energy with engine and jointly suspension point is done work, and mentions polished rod load; The counter balance torque that conventional beam type oil pumping machine crank bascule produces on reducer output shaft changes by sinusoidal rule, cause the net torque curve fluctuation after load-torque curve and the reduction of crank balance torque curve larger, there are higher " peak value " and darker negative sense " valley " to exist, must select compared with the motor of the reducer of high pulling torque and relatively high power, form high energy consumption, and motor is operated in low power factor state, cause the power supply quality variation of electrical network.
In order to reduce high energy consumption, the beam pumping unit in oil field has adopted multiple conservation measures at present.Have secondary balance weight Double equilibrium methods as installed the method for bascule additional on crank, the method is on the straight line end face of crankshaft balance weight, to install a secondary balance weight additional, by changing the position of secondary balance weight, reaches the effect of secondary balancing; Although this balance method can change the offset angle of balance sysmte, the moment of torsion on the reduction crank of part, reduces negative torque, and because the weight of secondary balance weight is limited, the effect of adjusting is also limited.Meanwhile, owing to having increased adjusting device on crankshaft balance weight, structure is comparatively complicated, has reduced the reliability of whole system, and can not reduce stressed on crank-pin, and therefore, this secondary balancing mode could not be at oil field spread.Moreover installing bascule on crank additional, will to realize the automation difficulty of crank balance larger, its reason is that crank and balance weight are 360 ° and constantly rotatablely move, and this can make the vibration of crank auxiliary balance device violent, and control line is constantly wound around.
And for example the measure of existing walking beam auxiliary balance is to install fixing balance weight additional at the afterbody of conventional type beam pumping unit, data shows certain energy-saving effect, but because balance weight angle is unadjustable, make beam balance and polished rod load be difficult to mate, particularly in shallow well, counterbalance effect is poor, balanced capacity is more limited, is difficult to adapt to various operating mode, and indivedual operating modes even cause larger energy consumption.
Summary of the invention
The object of the invention is to, for present situation and the deficiency of above-mentioned background technology, a kind of novel beam dynamic balance of oil pumping unit intelligent regulating device is provided, this device is fixed on walking beam afterbody, adopts the action of control system control servomotor, and then realizes 0 ° to 90 ° variation of swinging angle of swinging rod, realize real-time dynamic auto balancing, widen balancing scope, improve balancing effect, and can realize Long-distance Control.
The present invention realizes above-mentioned purpose by the following technical solutions:
This novel beam dynamic balance of oil pumping unit intelligent regulating device comprises square flange, shell, servomotor, shaft coupling, leading screw, Digital Control cabinet, bearing support, annular iron plate, rider, load bearing, load guide rail, connecting rod, fork, tandem-driving bogie, spacer pin, plastic film capicitor and protective cover, it is characterized in that: the right in shell is installed with servomotor, the left side in shell is installed with leading screw by bearing support, and the screw thread on leading screw is trapezoidal thread; Before and after the left side in shell, both sides are installed with load guide rail, and rider is installed on leading screw, and rider both sides are provided with the load bearing coordinating with load guide rail, and load bearing can be along load guide rail straight-line rolling, and rider coordinates by trapezoidal thread spiral with leading screw; On the leading screw at rider two ends, by annular iron plate, plastic film capicitor is housed; Servomotor is connected by shaft coupling with leading screw; The right-hand member of shell is fixed with square flange, the left end of shell is by the hinged fork that can swing around pin joint that is fixed with of otic placode, and one end of fork is flexibly connected with rider by connecting rod, and the other end of fork is fixed with tandem-driving bogie, in tandem-driving bogie, lay balance weight, balance weight is fixed by spacer pin; Shell upper is provided with protective cover, and protective cover left end middle part has a width and be slightly larger than the groove of fork; Servomotor is connected with the Digital Control cabinet on ground by holding wire.
The present invention's beneficial effect is compared with prior art:
This novel beam dynamic balance of oil pumping unit intelligent regulating device is fixed on walking beam afterbody, adopt the action of control system control servomotor, weigh without manual leveling, can automatically regulate balance of well pumping unit by Digital Control cabinet control executing agency according to monitoring information, intelligent degree is high, and can realize Long-distance Control.The balance that regulates oil pumper by changing swinging angle of swinging rod from the variation of 0 ° to 90 ° and the weight that changes balance weight, balancing scope is wide, and good balance effect has really reached and has saved electric energy and improve the object in oil pumper life-span.In addition, this device is selected Sliding leadscrew nut, can realize self-locking, without check mechanism; And leading screw adopts plastic film capicitor and protective cover double seal protection, is conducive to sand control dustproof, has strengthened the compliance of this device to oil field adverse circumstances, the application life of having improved whole bascule; Adopt load bearing to coordinate with the rolling of load guide rail, frictional force reduces greatly compared with common dovetail guide; Whole bascule is arranged on walking beam afterbody by square flange, does not change the structure of former oil pumper, and balance device structure is simply compact, and cost is low and applied widely.
Accompanying drawing explanation
Fig. 1 is that a kind of novel beam dynamic balance of oil pumping unit intelligent regulating device is arranged on the structural representation on oil pumper;
Fig. 2 is a kind of front view of novel beam dynamic balance of oil pumping unit intelligent regulating device;
Fig. 3 is a kind of top view of novel beam dynamic balance of oil pumping unit intelligent regulating device;
Fig. 4 is a kind of novel beam dynamic balance of oil pumping unit intelligent regulating device automatic adjusting balance fundamental diagram.
In figure: 1, walking beam, 2, square flange, 3, shell; 4, servomotor, 5, shaft coupling, 6, leading screw; 7, Digital Control cabinet, 8,9, bearing support, 10,11,17,18, annular iron plate; 12, rider, 13,14, load bearing, 15,16, load guide rail; 19, connecting rod, 20, fork, 21, tandem-driving bogie; 22, spacer pin, 23,24, plastic film capicitor, 25, protective cover.
The specific embodiment
This novel beam dynamic balance of oil pumping unit intelligent regulating device comprises square flange 2, shell 3, servomotor 4, shaft coupling 5, leading screw 6, Digital Control cabinet 7, bearing support 8,9, annular iron plate 10,11,17,18, rider 12, load bearing 13,14, load guide rail 15,16, connecting rod 19, fork 20, tandem-driving bogie 21, spacer pin 22, plastic film capicitor 23,24 and protective cover 25; the right in shell 3 is installed with servomotor 4; the left side in shell 3 is installed with leading screw 6 by bearing support 8,9, and the screw thread on leading screw 6 is trapezoidal thread.Before and after the left side in shell 3, both sides are installed with load guide rail 15,16, rider 12 is installed on leading screw 6, rider 12 both sides are provided with the load bearing 13,14 coordinating with load guide rail 15,16, load bearing 13,14 can be along load guide rail 15,16 straight-line rollings, adopt load bearing 13,14 and load guide rail 15,16 to bear on the one hand the component of leading screw 6 vertical direction in balancing process, on the other hand, compared with traditional dovetail groove, greatly reduce and the friction of guide rail by the mode of rolling friction.Rider 12 coordinates by trapezoidal thread spiral with leading screw 6.On the leading screw 6 at rider 12 two ends, by annular iron plate 11,18,17,10, plastic film capicitor 23,24 is housed, the diameter of described two sections of plastic film capicitors 23,24 and equal in length, its two ends are adhesively fixed on leading screw 6 outsides by the annular iron plate 11,10,18,17 of bearing support 8,9 inner sides and rider 12 two ends welding, and leading screw 6 is played to the effect that sand control is dustproof.Servomotor 4 is connected by shaft coupling 5 with leading screw 6.The right-hand member of shell 3 is fixed with square flange 2, the left end of shell 3 is by the hinged fork 20 that can swing around pin joint that is fixed with of otic placode, one end of fork 20 is flexibly connected with rider 12 by connecting rod 19, the other end of fork 20 is fixed with tandem-driving bogie 21, in tandem-driving bogie 21, lay balance weight, balance weight is fixing by spacer pin 22; Shell 3 tops are provided with protective cover 25, and protective cover 25 left ends middle parts have a width and be slightly larger than the groove of fork 20; Servomotor 4 is connected with the Digital Control cabinet 7 on ground by holding wire.(referring to accompanying drawing 1～4)
The hinge position of the fulcrum that described fork 20 swings is the hinged point with connecting rod 19 higher than rider 12, make the axial thrust load that is subject on leading screw 6 axial thrust load far below leading screw 6 in the time that the hinged point of fork 20 and the hinged point of rider 12 are positioned at sustained height, and the angle that fork 20 swings can realize 0 ° to 90 ° variation, so not only the type selecting to leading screw 6 and life-span are more favourable, and compared with balance weight translation, widen balancing scope, improved balancing effect.
Described protective cover 25 is pmma material, is placed in the top of shell 3, and bascule is shielded.According to the track circulation design of fork 20 peaks, both ends horizontal is stretched out a part, and the part of stretching out with shell 3 both ends horizontal is joined with bolts.Protective cover 25 left ends middle parts have a width and are slightly larger than the seam of fork, and while preventing that fork 20 from swinging to certain angle, protected cover 25 can not move after blocking.Material is saved in airflow design, and good looking appearance, and convenient observation, be easy to install.
The described data that Digital Control cabinet 7 receives and analyte sensors gathers, calculate the degree of balance of oil pumper and show in real time the degree of balance, by software, an optimum balance degree is set again, controller calculates and reaches the number of turns that optimum balance degree servomotor 4 needs rotation, and then drive servomotor 4 to move, finally realize the swing of fork 20.Adopt that servomotor 4 has advantages of that precision is high, good stability, low speed high torque, fast response time, can frequently play braking and rotating; Control position and velocity accuracy are high, and balancing is accurate fast.
The executing agency of this bascule is fixed on the afterbody of walking beam 1 by square flange 2 after having assembled in ground.Sensor is installed on pumping unit horsehead, the common composition data acquisition module of sensor and electrical quantity acquisition module.The signal output part of data acquisition module is connected by holding wire with the signal input part of Digital Control cabinet 7.When work, in the time of balance adjustment of pumping unit, Digital Control cabinet 7 receives the data of data collecting module collected, calculate the now degree of balance of oil pumper by software, and show in real time the degree of balance, reset an optimum balance degree, controller calculate send as an envoy to fork 20 while swinging to target location servomotor 4 need the revolution rotating, controller input motion instruction code, output control signal, to servomotor 4, drives servomotor 4 to move.Servomotor 4 drives leading screw 6 to rotate by shaft coupling 5; on leading screw 6, be manufactured with trapezoidal thread; coordinate with the trapezoidal thread of rider 12 interior annular copper sheathings; rotatablely moving of leading screw 6 changed into the rectilinear motion of rider 12; in the straight-line process of rider 12; load bearing 13,14 rectilinear motions along with rider 12 of rider 12 both sides are made straight-line rolling on load guide rail 15,16; component in leading screw vertical direction is transferred on load guide rail 15,16; 23,24 rectilinear motion elastic telescopics with rider 12 of bellows, protection leading screw.The rectilinear motion drivening rod 19 of rider 12 moves, and the motion of connecting rod 19 changes the pivot angle of fork 20, and balance arm of force peace weighing apparatus moment is also changed thereupon, and in the time arriving target equilbrium position, motor stops action.Due in pumping process, oil reservoir situation constantly changes, and often adjusts balance so need to set suitable adjustment cycle, until cycle setting again when balancing, then repeat above operating process.Control procedure is referring to the automatic adjusting balance fundamental diagram of accompanying drawing 4.
The above is preferred embodiment of the present invention, above-mentioned not illustrating done any pro forma restriction to flesh and blood of the present invention, person of an ordinary skill in the technical field is reading any simple modification or the distortion after this manual, according to technical spirit of the present invention, the above specific embodiment done, and the technology contents that may utilize above-mentioned announcement is changed or is modified to the equivalent embodiment of equivalent variations, all still belong in the scope of technical solution of the present invention, and do not deviate from the spirit and scope of the invention.
Claims (1)
1. a novel beam dynamic balance of oil pumping unit intelligent regulating device, it comprises square flange (2), shell (3), servomotor (4), shaft coupling (5), leading screw (6), Digital Control cabinet (7), bearing support (8, 9), annular iron plate (10, 11, 17, 18), rider (12), load bearing (13, 14), load guide rail (15, 16), connecting rod (19), fork (20), tandem-driving bogie (21), spacer pin (22), plastic film capicitor (23, 24) and protective cover (25), it is characterized in that: the right in shell (3) is installed with servomotor (4), the left side in shell (3) is by bearing support (8, 9) be installed with leading screw (6), screw thread on leading screw (6) is trapezoidal thread, before and after the left side in shell (3), both sides are installed with load guide rail (15,16), rider (12) is installed on leading screw (6), rider (12) both sides are provided with the load bearing (13,14) coordinating with load guide rail (15,16), load bearing (13,14) can be along load guide rail (15,16) straight-line rolling, and rider (12) coordinates by trapezoidal thread spiral with leading screw (6), the leading screw (6) at rider (12) two ends is above equipped with plastic film capicitor (23,24) by annular iron plate (11,18,17,10), servomotor (4) is connected by shaft coupling (5) with leading screw (6), the right-hand member of shell (3) is fixed with square flange (2), the left end of shell (3) is by the hinged fork (20) that can swing around pin joint that is fixed with of otic placode, one end of fork (20) is flexibly connected with rider (12) by connecting rod (19), the other end of fork (20) is fixed with tandem-driving bogie (21), tandem-driving bogie is laid balance weight in (21), and balance weight is fixing by spacer pin (22), shell (3) top is provided with protective cover (25), and protective cover (25) left end middle part has the groove that a width is greater than fork (20), servomotor (4) is connected with the Digital Control cabinet (7) on ground by holding wire.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410157046.4A CN103883289B (en) | 2014-04-19 | 2014-04-19 | A kind of beam-pumping unit dynamic equilibrium intelligent regulating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410157046.4A CN103883289B (en) | 2014-04-19 | 2014-04-19 | A kind of beam-pumping unit dynamic equilibrium intelligent regulating device |
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| CN103883289A true CN103883289A (en) | 2014-06-25 |
| CN103883289B CN103883289B (en) | 2016-04-20 |
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| CN201410157046.4A Expired - Fee Related CN103883289B (en) | 2014-04-19 | 2014-04-19 | A kind of beam-pumping unit dynamic equilibrium intelligent regulating device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110725669A (en) * | 2018-10-18 | 2020-01-24 | 上海逸讯能源科技有限公司 | Intelligent balance adjusting method for beam-pumping unit and related device |
| CN113532981A (en) * | 2021-06-17 | 2021-10-22 | 北京工业大学 | Fiber balance twisting auxiliary device with adjustable balance weight and related experimental method |
| CN113982540A (en) * | 2021-12-28 | 2022-01-28 | 东营合瑞石油技术有限责任公司 | Adjustable balanced beam-pumping unit |
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| US3817094A (en) * | 1970-07-27 | 1974-06-18 | Mobil Oil Corp | Well monitoring apparatus |
| US3892276A (en) * | 1973-11-29 | 1975-07-01 | Arthur B Wells | Method and apparatus for heating oil pumped from an oil well |
| CN202381045U (en) * | 2011-11-03 | 2012-08-15 | 中国石油天然气股份有限公司 | Balance automatic regulator for beam pumping unit |
| CN202531125U (en) * | 2012-03-22 | 2012-11-14 | 中国石油天然气股份有限公司 | Automatic balance adjusting device of beam-pumping unit |
| CN202767952U (en) * | 2012-08-16 | 2013-03-06 | 陕西延长石油(集团)有限责任公司研究院 | Balancing torque automatic regulating device of beam-balanced pumping unit |
| CN103195396A (en) * | 2013-03-06 | 2013-07-10 | 张健 | Full-automatic walking beam rail sliding balancing device |
| CN203867528U (en) * | 2014-04-19 | 2014-10-08 | 长江大学 | Dynamic balance intelligent adjusting device of novel beam-pumping unit |
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2014
- 2014-04-19 CN CN201410157046.4A patent/CN103883289B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3817094A (en) * | 1970-07-27 | 1974-06-18 | Mobil Oil Corp | Well monitoring apparatus |
| US3892276A (en) * | 1973-11-29 | 1975-07-01 | Arthur B Wells | Method and apparatus for heating oil pumped from an oil well |
| CN202381045U (en) * | 2011-11-03 | 2012-08-15 | 中国石油天然气股份有限公司 | Balance automatic regulator for beam pumping unit |
| CN202531125U (en) * | 2012-03-22 | 2012-11-14 | 中国石油天然气股份有限公司 | Automatic balance adjusting device of beam-pumping unit |
| CN202767952U (en) * | 2012-08-16 | 2013-03-06 | 陕西延长石油(集团)有限责任公司研究院 | Balancing torque automatic regulating device of beam-balanced pumping unit |
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| CN203867528U (en) * | 2014-04-19 | 2014-10-08 | 长江大学 | Dynamic balance intelligent adjusting device of novel beam-pumping unit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN104533353B (en) * | 2014-12-31 | 2017-06-13 | 大港油田集团有限责任公司 | Beam pumping unit power-economizing method |
| CN110725669A (en) * | 2018-10-18 | 2020-01-24 | 上海逸讯能源科技有限公司 | Intelligent balance adjusting method for beam-pumping unit and related device |
| CN113532981A (en) * | 2021-06-17 | 2021-10-22 | 北京工业大学 | Fiber balance twisting auxiliary device with adjustable balance weight and related experimental method |
| CN113982540A (en) * | 2021-12-28 | 2022-01-28 | 东营合瑞石油技术有限责任公司 | Adjustable balanced beam-pumping unit |
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| CN103883289B (en) | 2016-04-20 |
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