CN204402440U - Shifting balance digitlization oil pumper - Google Patents
Shifting balance digitlization oil pumper Download PDFInfo
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- CN204402440U CN204402440U CN201420868973.2U CN201420868973U CN204402440U CN 204402440 U CN204402440 U CN 204402440U CN 201420868973 U CN201420868973 U CN 201420868973U CN 204402440 U CN204402440 U CN 204402440U
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Abstract
The utility model relates to beam pumping unit technical field, it is a kind of shifting balance digitlization oil pumper, this shifting balance digitlization oil pumper comprises mair motor, reducer, crank, connecting rod, walking beam, balance arm, support, horse head, base, brake gear, polished rod eye, load transducer, stroke procedure measuring appliance, safety caging device and Digital Control cabinet, arm is upper left moves right in balance not only to make portable ballast box, polished rod load under the various operating mode of autobalance, and automatically regulate beam-pumping unit jig frequency according to the change of pump degree of filling, there is safe and reliable feature, facilitate operation, give full play to oil well output, improve balanced ratio, achieve energy-saving and cost-reducing.
Description
Technical field
the utility model relates to beam pumping unit technical field, is a kind of shifting balance digitlization oil pumper.
Background technology
existing beam pumping unit mainly contains: conventional type beam pumping unit, prefix type beam pumping unit, eccentrically arranged type beam pumping unit and Hetrotype travelling beam type oil extractor etc., current beam pumping unit generally comprises horse head, walking beam, support, connecting rod, base, crank, bascule, reducer, brake, motor and polished rod eye, base is installed with support, reducer, brake, motor and switch board etc., walking beam is hinged on support, crank is fixedly mounted on reducer output shaft, one end of connecting rod is hinged on crank, the other end of connecting rod is hinged on walking beam, material is thus formed quadric chain, horse head is arranged on the front end of walking beam, polished rod eye is arranged on horse head, bascule is arranged on crank, or/and bascule is arranged on walking beam, carrys out adjustment by manually adding and subtracting mass quality change trimming moment, or/and, change trimming moment by moved by hand mass position and carry out adjustment, but all there is the remarkable deficiency of two aspects in existing beam pumping unit: one is, can not automatic adjusting balance, and balance needs to adjust in time according to the change of oil well load, if balanced ratio is very low, oil pumper duty can be caused to worsen and power consumption increase, two are, automatically jig frequency can not be adjusted, cause the oil pumping ability of oil pumper often higher or lower than the oil production of oil well, if the too fast meeting of the jig frequency of oil pumper causes oil pumping ability higher than the oil production of oil well, sky is caused to take out and liquid hammer, damage oil pumper, sucker rod, oil well pump, reduce application life, and waste electric energy, oil pumping ability can be caused slowly lower than the oil production of oil well if the jig frequency of oil pumper is crossed, reduce oil well output.
Summary of the invention
the utility model provides a kind of shifting balance digitlization oil pumper, overcome the deficiency of above-mentioned prior art, it effectively can solve existing beam pumping unit can not automatic adjusting balance and automatically can not adjust jig frequency, cause that balanced ratio is low, jig frequency is not mated with well oil output, cause oil pumper easily to break down, oil well is difficult to realize maximum production capacity and cost of production is high problem.
the technical solution of the utility model is realized by following measures: a kind of shifting balance digitlization oil pumper, comprises mair motor, reducer, crank, connecting rod, walking beam, balance arm, support, horse head, base, brake gear, polished rod eye and stroke procedure measuring appliance; Base is installed with mair motor, reducer, brake gear and support, the walking beam that can swing up and down is hinged on the top of support by the walking beam bearing at middle part, the power output shaft of reducer is provided with crank, lower end and the crank of connecting rod are hinged, the upper end thereof of connecting rod is at the left part of walking beam, the right-hand member of walking beam is installed with horse head, horse head is provided with polished rod eye, balance arm is installed with, the drive unit that balance arm is separately installed with portable ballast box and portable ballast box can be made to move left and right at the left end of walking beam.
here is the further optimization and/or improvements to above-mentioned utility model technical scheme:
above-mentioned drive unit comprises the reducer of band balance motor, leading screw and screw, reducer with balance motor is fixedly mounted on balance arm, lead screw shaft bearing is installed with in one end of balance arm, leading screw asessory shaft bearing is installed with at the other end of balance arm, the two ends of leading screw are arranged in lead screw shaft bearing and leading screw asessory shaft bearing respectively, one end of leading screw is fixedly installed togather by the clutch end of shaft coupling with the reducer of band balance motor, leading screw is provided with screw, portable ballast box is saddle, groove is had in the middle part of it, leading screw passes in the groove of portable ballast box, portable ballast box is installed with four fixed blocks, cross recess is formed between four fixed blocks, screw is arranged in cross recess and also can floats up and down, the cover plate that can block screw is installed with in the outer end of fixed block, balance arm is provided with slide rail, in the inner side of portable ballast box, roller is installed, roller is positioned on slide rail, or/and be provided with safety caging device on balance arm and portable ballast box, this safety caging device comprises tablet, down stroke inductive switch and up stroke inductive switch, or/and stroke procedure measuring appliance is be arranged on angular displacement sensor on walking beam or for being fixedly mounted on proximity switch on crank or for being arranged on the suspension point displacement detecting sensor on polished rod eye, portable ballast box comprises movable case and movable weight, there is dividing plate at movable case internal fixtion and movable case be divided into fixed weight chamber and moving counterweight chamber, fixed weight thing is filled with in fixed weight chamber, in moving counterweight chamber, movable weight is installed, movable case is installed with the insurance pin that can block movable weight.
above-mentioned polished rod eye comprises polished rod eye body, load transducer and outstanding rope; Polished rod eye body is provided with load transducer.
above-mentionedly on base, be installed with Digital Control cabinet, at Digital Control cabinet internal fixtion, central processing unit, communication module, power module, display module, electricity quantity module, three phase electrical parameters harvester, control panel, on off control relay, frequency converter, mair motor frequency-changing AC contactor, mair motor industrial frequency AC contactor, comprehensive protector of motor, balancing control relay, balance motor A.C. contactor and current transducer be installed; the signal output part of load transducer is electrically connected by the first signal input part of load transducer cable and lower stube cable and central processing unit, the signal output part of stroke procedure measuring appliance is electrically connected by the secondary signal input of movable cable and lower stube cable and central processing unit, the power input line of the reducer of band balance motor is provided with current transducer, the signal output part of current transducer and the 3rd signal input part of central processing unit are electrically connected by wire, the signal output part of down stroke inductive switch and up stroke inductive switch is by upper stube cable, 4th signal input part of movable cable and lower stube cable and central processing unit is electrically connected, the signal output part of down stroke inductive switch and up stroke inductive switch is by upper stube cable, the signal input part of movable cable and lower stube cable and balancing control relay is electrically connected, first signal output part of central processing unit and the signal input part of balancing control relay are electrically connected by wire, the signal output part of balancing control relay and the signal input part of balance motor AC contactor are electrically connected by wire, the output of balance motor A.C. contactor and the input of balance motor are electrically connected by wire, the output of balance motor A.C. contactor and the signal input part of current transducer are electrically connected by wire, the secondary signal output of central processing unit and the signal input part of on off control relay are electrically connected by wire, the signal output part of on off control relay and the signal input part of mair motor industrial frequency AC contactor are electrically connected by wire, the output of mair motor industrial frequency AC contactor and the input of mair motor are electrically connected by wire, the signal output part of on off control relay and the signal input part of mair motor frequency-changing AC contactor are electrically connected by wire, the output of mair motor frequency-changing AC contactor and the input of mair motor are electrically connected by wire.
the left end of the above-mentioned reducer power output shaft at band balance motor is fixed with square head or six square toes, and balance arm is installed with crank supporting seat; Or/and, base is provided with belt pulley fast replacing device, and the lower end of belt pulley fast replacing device is hinged on base, and the upper surface of belt pulley fast replacing device is installed with mair motor, support is hinged with support bar, walking beam has the corresponding free bearing connecting support bar; Or/and, be installed with buffer at the left part of base; Or/and three phase electrical parameters harvester is electrical quantity dynamic equilibrium tester or current transformer.
the utility model reasonable and compact in structure, easy to use, by mair motor, reducer, connecting rod, walking beam, support, horse head, polished rod eye, load transducer, angular displacement sensor, safety caging device and Digital Control cabinet with the use of, arm is upper left moves right in balance not only to make portable ballast box, polished rod load under the various operating mode of autobalance, and automatically regulate beam-pumping unit jig frequency according to the change of pump degree of filling, there is safe and reliable feature, facilitate operation, give full play to oil well output, improve balanced ratio, achieve energy-saving and cost-reducing.
Accompanying drawing explanation
accompanying drawing 1 is the main TV structure schematic diagram of the utility model embodiment 2.
accompanying drawing 2 is that the master balancing arm in the utility model embodiment 2 looks structure for amplifying schematic diagram.
accompanying drawing 3 is that the A of portable ballast box in the utility model embodiment 2 is to structure for amplifying schematic diagram.
accompanying drawing 4 is that in the utility model embodiment 2, portable ballast box does not install the A of cover plate to structure for amplifying schematic diagram.
accompanying drawing 5 is the control circui schematic diagram of the utility model embodiment 2.
accompanying drawing 6 is the indicator card under the too fast state of the utility model jig frequency.
accompanying drawing 7 is the indicator card under the appropriate state of the utility model jig frequency.
accompanying drawing 8 crosses the indicator card under slow state for the utility model jig frequency.
accompanying drawing 9 is the electricity ginseng curve of the utility model electric current under-balanced state and power under-balanced state.
accompanying drawing 10 is the electricity ginseng curve of the utility model current balance type state and power-balance state.
accompanying drawing 11 is the electricity ginseng curve of the utility model electric current overbalance state and power overbalance state.
coding in accompanying drawing is respectively: 1 is polished rod eye, 2 is horse head, 3 is walking beam, 4 is walking beam bearing, 5 is support, 6 is connecting rod, 7 is balance arm, 8 is reducer, 9 is crank, 10 is hand crank, 11 is buffer, 12 is base, 13 is brake gear, 14 is Digital Control cabinet, 15 is mair motor, 16 is angular displacement sensor, 17 is load transducer, 18 is load transducer cable, 19 is movable cable, 20 is upper stube cable, 21 is lower stube cable, 22 is square head, 23 for being with the reducer of balance motor, 24 is shaft coupling, 25 is lead screw shaft bearing, 26 is leading screw, 27 is slide rail, 28 is portable ballast box, 29 is screw, 30 is fixed block, 31 is cover plate, 32 is fastening bolt, 33 is leading screw asessory shaft bearing, 34 is up stroke inductive switch, 35 is tablet, 36 is movable weight, 37 is insurance pin, 38 is down stroke inductive switch, 39 is movable case buffer stopper, 40 is block, 41 is roller, 42 is fixed weight thing, 43 is crank supporting seat.
Detailed description of the invention
the utility model by the restriction of following embodiment, can not determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. determines according to the Butut direction of Figure of description 1.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
embodiment, as shown in accompanying drawing 1,2,3,4, this shifting balance digitlization oil pumper comprises mair motor 15, reducer 8, crank 9, connecting rod 6, walking beam 3, balance arm 7, support 5, horse head 2, base 12, brake gear 13, polished rod eye 1 and stroke procedure measuring appliance, base 12 is installed with mair motor 15, reducer 8, brake gear 13 and support 5, the walking beam 3 that can swing up and down is hinged on the top of support 5 by the walking beam bearing 4 at middle part, the power output shaft of reducer 8 is provided with crank 9, lower end and the crank 9 of connecting rod 6 are hinged, the upper end thereof of connecting rod 6 is at the left part of walking beam 3, the right-hand member of walking beam 3 is installed with horse head 2, horse head 2 is provided with polished rod eye 1, balance arm 7 is installed with at the left end of walking beam 3, drive unit balance arm 7 being separately installed with portable ballast box 28 and portable ballast box 28 can be made to move left and right.
according to actual needs, above-described embodiment 2 can be made further optimization and/or improvements:
as accompanying drawing 1, 2, 3, shown in 4, drive unit comprises the reducer 23 of band balance motor, leading screw 26 and screw 29, reducer 23 with balance motor is fixedly mounted on balance arm 7, lead screw shaft bearing 25 is installed with in one end of balance arm 7, leading screw asessory shaft bearing 33 is installed with at the other end of balance arm 7, the two ends of leading screw 26 are arranged in lead screw shaft bearing 25 and leading screw asessory shaft bearing 33 respectively, one end of leading screw 26 is fixedly installed togather by the clutch end of shaft coupling 24 with the reducer 23 of band balance motor, leading screw 26 is provided with screw 29, portable ballast box 28 is in saddle, groove is had in the middle part of it, leading screw 26 passes in the groove of portable ballast box 28, portable ballast box 28 is installed with four fixed blocks 30, cross recess is formed between four fixed blocks 30, screw 29 is arranged in cross recess and also can floats up and down, the cover plate 31 that can block screw is installed with in the outer end of fixed block 30, balance arm 7 is provided with slide rail 27, in the inner side of portable ballast box 28, roller 41 is installed, roller 41 is positioned on slide rail 27, or/and be provided with safety caging device on balance arm 7 and portable ballast box 28, this safety caging device comprises tablet 35, down stroke inductive switch 38 and up stroke inductive switch 34, or/and stroke procedure measuring appliance is be arranged on angular displacement sensor 16 on walking beam 3 or for being fixedly mounted on proximity switch on crank 9 or for being arranged on the suspension point displacement detecting sensor on polished rod eye 1, or/and portable ballast box 28 comprises movable case and movable weight 36, there is dividing plate at movable case internal fixtion and movable case be divided into fixed weight chamber and moving counterweight chamber, fixed weight thing 42 is filled with in fixed weight chamber, movable weight 36 is installed in moving counterweight chamber, movable case is installed with the insurance pin 37 that can block movable weight 36.Be installed with movable case buffer stopper 39 at the left end of balance arm 7, be installed with block 40 at the left end of balance arm 7.Like this, by being with reducer 23 forward or reverse of balance motor, shaft coupling 24 drives leading screw 26 to rotate, and screw 29 drives portable ballast box 28 to move left and right on balance arm 7, thus balances the change of polished rod load in pumping process.In the inner side of portable ballast box 28, four rolling 41 is installed, better plays support and guide effect.When portable ballast box 28 moves to the two ends of balance arm 7, when tablet 35 on ballast box is close to up stroke inductive switch 34 or down stroke inductive switch 38, tablet 35 sends stop signal to down stroke inductive switch and up stroke inductive switch, shut down by the reducer 23 of central processing unit, balancing control relay, balance motor A.C. contactor control cincture balance motor, portable ballast box 28 is stopped mobile; Up stroke inductive switch 34 and down stroke inductive switch 38 cooperatively interact, for the position limitation protection of portable ballast box about 28 stroke with tablet 35; Crank 9 being provided with three crank pin holes, using for adjusting stroke.Be installed with the cover plate 31 that can block screw 29 by fastening bolt 32 in the outer end of fixed block 30.Fixed weight thing 42 can adopt the existing known materials such as composite material coagulum, and the basis meeting counterweight is played the effect reducing manufacturing cost.Insurance pin 37 plays the effect of protection movable weight 36, prevents movable weight 36 in running from dropping; By adjusting the quantity coarse balance of the movable weight 36 in the moving counterweight chamber of movable case, fine adjustment balance is carried out by the position changing portable ballast box 28, combined by both positions of the quantity and the portable ballast box 28 of change that adjust movable weight 36, make shifting balance digitlization oil pumper not only easily reach balance but also balance can be kept.
as shown in Figure 1, polished rod eye 1 comprises polished rod eye body, load transducer 17 and outstanding rope; Polished rod eye body is provided with load transducer 17.
as shown in accompanying drawing 1,5, base 12 is installed with Digital Control cabinet 14, at Digital Control cabinet 14 internal fixtion, central processing unit, communication module, power module, display module, electricity quantity module, three phase electrical parameters harvester, control panel, on off control relay, frequency converter, mair motor frequency-changing AC contactor, mair motor industrial frequency AC contactor, comprehensive protector of motor, balancing control relay, balance motor A.C. contactor and current transducer is installed; the signal output part of load transducer 17 is electrically connected with the first signal input part of central processing unit by load transducer cable 18 and lower stube cable 21, the signal output part of stroke procedure measuring appliance is electrically connected with the secondary signal input of central processing unit by movable cable 19 and lower stube cable 21, the power input line of the reducer 23 of band balance motor is provided with current transducer, the signal output part of current transducer and the 3rd signal input part of central processing unit are electrically connected by wire, the signal output part of down stroke inductive switch and up stroke inductive switch is by upper stube cable 20, movable cable 19 and lower stube cable 21 are electrically connected with the 4th signal input part of central processing unit, the signal output part of down stroke inductive switch and up stroke inductive switch is by upper stube cable 20, movable cable 19 and lower stube cable 21 are electrically connected with the signal input part of balancing control relay, first signal output part of central processing unit and the signal input part of balancing control relay are electrically connected by wire, the signal output part of balancing control relay and the signal input part of balance motor AC contactor are electrically connected by wire, the output of balance motor A.C. contactor and the input of balance motor are electrically connected by wire, the output of balance motor A.C. contactor and the signal input part of current transducer are electrically connected by wire, the secondary signal output of central processing unit and the signal input part of on off control relay are electrically connected by wire, the signal output part of on off control relay and the signal input part of mair motor industrial frequency AC contactor are electrically connected by wire, the output of mair motor industrial frequency AC contactor and the input of mair motor 15 are electrically connected by wire, the signal output part of on off control relay and the signal input part of mair motor frequency-changing AC contactor are electrically connected by wire, the output of mair motor frequency-changing AC contactor and the input of mair motor 15 are electrically connected by wire.
as required, be fixed with square head 22 or six square toes at the left end of reducer 23 power output shaft of band balance motor, balance arm 7 is installed with crank supporting seat 43; Or/and, base 12 is provided with belt pulley fast replacing device, and the lower end of belt pulley fast replacing device is hinged on base 12, the upper surface of belt pulley fast replacing device is installed with mair motor 15, support 5 is hinged with support bar, walking beam 3 has the corresponding free bearing connecting support bar; Or/and, be installed with buffer 11 at the left part of base 12; Or/and three phase electrical parameters harvester is electrical quantity dynamic equilibrium tester or current transformer.Like this, have a power failure or band balance motor reducer 23 damage or electricity cable damage hand balancing or maintenance activity time, available hand crank 10 or spanner manual rotation square head 22 or six square toes, the reducer 23 of band balance motor is rotated forward or backwards, by leading screw 26, portable ballast box 28 is moved left and right on balance arm 7.Buffer 11 be convenient to the utility model generation suspension point lose carry after, balance arm 7 left end impact attenuation device 11 discharge impact energy, the parts such as available protecting reducer 8 and mair motor 15.Load transducer 17, the reducer 23 of angular displacement sensor 16 and band balance motor is by load transducer cable 18, movable cable 19, upper stube cable 20 is linked together by the joint that can be connected fast with Digital Control cabinet 14 with lower stube cable 21, movable cable 19 particularly between walking beam 3 and support 5, upper stube cable 20 is linked together by the joint that can be connected fast with lower stube cable 21, and the joint that movable cable 19 is connected with lower stube cable 21 upward, reduce the bending damage of butt joint, extend movable cable application life, and be convenient to change.
as shown in accompanying drawing 9,10,11, the digital automatic control oil pumping method of above-described embodiment comprises shifting balance digitlization oil pumper, this shifting balance digitlization oil pumper comprises mair motor 15, walking beam 3, balance arm 7, crank 9 and polished rod eye 1, balance arm 7 is installed with at the left end of walking beam 3, drive unit balance arm 7 being separately installed with portable ballast box 28 and portable ballast box 28 can be made to move left and right, shifting balance digitlization oil pumper is provided with stroke procedure measuring appliance, polished rod eye 1 is installed with load transducer 17; Also comprise central processing unit and three phase electrical parameters harvester, this three phase electrical parameters harvester is arranged on energization input; The method is carried out in the steps below:
the first step, respectively the data that stroke procedure measuring appliance, three phase electrical parameters harvester collect are transferred to central processing unit, central processing unit is in each stroke procedure, the current value collected is processed, find out max on the maximum current value I under the maximum current value I in down stroke in max and upstroke, central processing unit calculates the upper max of max/I under the current balance type angle value H1 of each stroke procedure and H1=I;
second step, the N number of current balance type angle value H1 obtained for N time by the number of strokes of setting compares process, current balance type degree lower limit set value is A11, current balance type degree regulates target lower limit set value to be A12, current balance type degree upper limit set value is B11, and current balance type degree regulates target upper limit setting value to be B12;
in N stroke, as long as having 1 H1 value to meet A11≤H1≤B11 is current balance type state, portable ballast box 28 is not regulated;
when after N stroke, be electric current under-balanced state when N number of H1 value is all less than A11, now by drive unit, portable ballast box 28 be moved to the left, make current balance type degree H1 reach A12≤H1≤B12;
when after N stroke, be electric current overbalance state when N number of H1 value is all greater than B11, now by drive unit, portable ballast box 28 moved right, make current balance type degree H1 reach A12≤H1≤B12.
by three phase electrical parameters harvester, the electric current in stroke procedure and voltage are gathered, three kinds of state diagrams can be obtained respectively after collection, be respectively the electricity ginseng curve of electric current under-balanced state and power under-balanced state as shown in Figure 9, the electricity ginseng curve of current balance type state and power-balance state as shown in Figure 10 with the electricity ginseng curve of electric current overbalance state and power overbalance state as shown in Figure 11.
according to actual needs, above-described embodiment 1 can be made further optimization and/or improvements:
as shown in accompanying drawing 9,10,11, in each stroke procedure, central processing unit calculates the current value collected and magnitude of voltage, obtain on the average power content P in the lower and upper stroke of average power content P in down stroke, and carry out size and compare, being that denominator and P are large with higher value, is that molecule and P are little with smaller value, then rated output balance angle value H2 and H2=P little/P is large; The N number of power-balance angle value H2 obtained for N time by the number of strokes of setting compares process, and power-balance degree lower limit set value is A21, and power-balance degree regulates target lower limit set value to be A22;
in N stroke, as long as having 1 H2 value to meet A21≤H2 is power-balance state, portable ballast box 28 is not regulated;
when after N stroke, be power under-balanced state when N number of H2 value is all less than A21 and is less than on P under P, now by drive unit, portable ballast box 28 be moved to the left, make power-balance degree H2 reach A22≤H2;
when after N stroke, be power overbalance state when N number of H2 value is all less than A21 and is greater than on P under P, now by drive unit, portable ballast box 28 moved right, make power-balance degree H2 reach A22≤H2.
by three phase electrical parameters harvester, the electric current in stroke procedure and voltage are gathered, three kinds of state diagrams can be obtained respectively after collection, be respectively the electricity ginseng curve of electric current under-balanced state and power under-balanced state as shown in Figure 9, the electricity ginseng curve of current balance type state and power-balance state as shown in Figure 10, the electricity ginseng curve of electric current overbalance state and power overbalance state as shown in Figure 11.
as shown in accompanying drawing 6,7,8, between mair motor 15 and energization input, frequency converter is installed, polished rod eye 1 being installed with load transducer 17 for gathering polished rod load value F, shifting balance digitlization oil pumper being provided with stroke procedure measuring appliance for gathering suspension point shift value S, in each stroke procedure, central processing unit carries out analysis and calculation according to the polished rod load value F collected and suspension point shift value S and obtains surface dynamometer card, its ordinate is the coordinate of polished rod polished rod load value F in oil pumping process, abscissa is the coordinate of polished rod suspension point shift value S in oil pumping process, central processing unit gathers the effective stroke value S2 of upstroke throw of pump value S1 and down stroke pump according to surface dynamometer card, then pump degree of filling H3 and H3=S2/S1 is calculated, the N number of pump obtained for N time by the number of strokes of setting is full of angle value H3 and compares process, pump degree of filling lower limit set value is A31, pump degree of filling regulates target lower limit set value to be A32, pump degree of filling upper limit set value is B31,
in N stroke, as long as having 1 H3 value to meet A31≤H3≤B31 is the appropriate state of jig frequency, do not carry out jig frequency adjustment;
when after N stroke, when N number of H3 value is all less than A31, be the too fast state of jig frequency, now reduce mair motor 15 rotating speed by frequency converter and reduce jig frequency, making pump degree of filling H3 reach A32≤H3≤B31;
when after N stroke, when N number of H3 value is all greater than B31, for jig frequency crosses slow state, now raise mair motor 15 rotating speed by frequency converter and increase jig frequency, making pump degree of filling H3 reach A32≤H3≤B31.
by stroke procedure measuring appliance, the suspension point displacement in stroke procedure is gathered, by load transducer, the polished rod load in stroke procedure is gathered, through central processing unit, the above-mentioned data collected are processed, obtain three kinds of state diagrams, be respectively indicator card under the too fast state of the jig frequency indicator card as shown in Figure 6, under the appropriate state of jig frequency as shown in Figure 7, jig frequency crosses indicator card under slow state as shown in Figure 8.
as required, A11 value is 0.8 to 0.85, A12 value be 0.9 to 0.95, B11 value be 1.10 to 1.15, B12 values is 1.0 to 1.05; Or/and A21 value is 0.5 to 0.6, A22 value is 0.80 to 0.90; Or/and A31 value is 0.5 to 0.6, A32 value be 0.75 to 0.85, B31 value is 0.85 to 0.95.
the upper max of I is upstroke mair motor 15 maximum current value, under I, max is down stroke mair motor 15 maximum current value, P is upper is average power content in upstroke, be the average power content in down stroke under P, electrical quantity dynamic equilibrium tester transfers data to central processing unit and obtains current balance type degree H1, power-balance degree H2.
the computation and analysis of pump degree of filling H3 needs the effective stroke value S2 using upstroke throw of pump value S1 and down stroke pump, the exact value of S1 and S2 should obtain from pump dynamometers, pump is arranged on oil pipe lower end, often apart from the even thousands of rice of ground degree of depth hundreds of in production practices, be difficult to the indicator card directly obtaining pump, therefore usually use ground merit figure to obtain approximate S1 value and S2 value.Surface dynamometer card is the closed curve that a pumping cycle, (comprising a complete upstroke and down stroke), interior suspension point displacement S and corresponding polished rod load F was formed, and abscissa is suspension point displacement S, and ordinate is polished rod load F.The suspension point displacement S that stroke procedure measuring appliance and load transducer will directly record respectively, the modular converter of analog electrical energy in central processing unit of polished rod load F is converted to digital electricity, the digital electricity that central processing unit gathers suspension point displacement S and corresponding polished rod load F by constant duration simultaneously forms a series of point data, software logic identifies all point data of S and F in a complete pumping cycle simultaneously, get surface dynamometer card through graphics software process, as accompanying drawing 6, 7, shown in 8, the approximation of pump effective stroke S2 in the approximation of pump stroke S1 in upstroke process and down stroke process can be calculated by the scanning search of indicator card data point.
as required, the number of strokes N of setting is the number of times of setting; Or/and stroke procedure measuring appliance is be arranged on angular displacement sensor 16 on walking beam 3 or for being fixedly mounted on proximity switch on crank 9 or for being arranged on the suspension point displacement detecting sensor on polished rod eye 1; Or/and three phase electrical parameters harvester is electrical quantity dynamic equilibrium tester or current transformer.
the beneficial effects of the utility model:
1) the utility model have employed portable automatic adjusting balance structure; by the quantity coarse balance of movable weight 36 in adjustment movable case; by changing the position fine adjustment balance of portable ballast box 28; the two combines; balanced adjustment under making oil pumper more easily realize various operating mode needed for different polished rod load; greatly can improve balanced ratio in production practices, protection oil pumper also reduces cost of production.
2) portable ballast box 28 is moved by hand crank 10, even if the reducer 23 of band balance motor damages, reducer 23 power supply circuits with balance motor damage, communicating interrupt, still can artificial hand balancing, oil pumper is made to continue to use, without potential safety hazard, also can not cause and stop well and affect output.
3) automatically electric parameter is tested; comprise phase voltage, phase current, frequency, forward active energy, negative sense active energy etc.; the current equilibrium state of oil pumper is calculated according to electric current and electrical power data; and automatically carrying out balance adjustment, current balance type degree and power-balance degree being combined not only protects oil pumper but also achieve energy-conservation.
4) automatically test indicator card, according to the automatic adjusting stroke frequency of degree of filling of pump, degree of filling and the efficiency of pump can be improved.
5) buffer 11 is installed with at the left part of base 12; suspension point loses the left end impact attenuation device 11 carrying back balance arm 7 and discharges impact energy; the parts such as available protecting reducer and mair motor 15, solve beam-balanced pumping unit suspension point and lose a year rear safeguard protection difficult problem.
6) there are frequency conversion, power frequency two kinds of methods of operation, during frequency conversion fault, can power frequency operation be automatically switched to.
7) show on the spot or by communication module teletransmission test data, test data imported field production management system, facilitate oil field to carry out network management to oil pumper.
above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (9)
1.
a kind of shifting balance digitlization oil pumper, is characterized in that comprising mair motor, reducer, crank, connecting rod, walking beam, balance arm, support, horse head, base, brake gear, polished rod eye and stroke procedure measuring appliance; Base is installed with mair motor, reducer, brake gear and support, the walking beam that can swing up and down is hinged on the top of support by the walking beam bearing at middle part, the power output shaft of reducer is provided with crank, lower end and the crank of connecting rod are hinged, the upper end thereof of connecting rod is at the left part of walking beam, the right-hand member of walking beam is installed with horse head, horse head is provided with polished rod eye, balance arm is installed with, the drive unit that balance arm is separately installed with portable ballast box and portable ballast box can be made to move left and right at the left end of walking beam.
2.
shifting balance digitlization oil pumper according to claim 1, it is characterized in that drive unit comprises the reducer of band balance motor, leading screw and screw, reducer with balance motor is fixedly mounted on balance arm, lead screw shaft bearing is installed with in one end of balance arm, leading screw asessory shaft bearing is installed with at the other end of balance arm, the two ends of leading screw are arranged in lead screw shaft bearing and leading screw asessory shaft bearing respectively, one end of leading screw is fixedly installed togather by the clutch end of shaft coupling with the reducer of band balance motor, leading screw is provided with screw, portable ballast box is saddle, groove is had in the middle part of it, leading screw passes in the groove of portable ballast box, portable ballast box is installed with four fixed blocks, cross recess is formed between four fixed blocks, screw is arranged in cross recess and also can floats up and down, the cover plate that can block screw is installed with in the outer end of fixed block, balance arm is provided with slide rail, in the inner side of portable ballast box, roller is installed, roller is positioned on slide rail, or/and be provided with safety caging device on balance arm and portable ballast box, this safety caging device comprises tablet, down stroke inductive switch and up stroke inductive switch, or/and stroke procedure measuring appliance is be arranged on angular displacement sensor on walking beam or for being fixedly mounted on proximity switch on crank or for being arranged on the suspension point displacement detecting sensor on polished rod eye, portable ballast box comprises movable case and movable weight, there is dividing plate at movable case internal fixtion and movable case be divided into fixed weight chamber and moving counterweight chamber, fixed weight thing is filled with in fixed weight chamber, in moving counterweight chamber, movable weight is installed, movable case is installed with the insurance pin that can block movable weight.
3.
shifting balance digitlization oil pumper according to claim 1 and 2, is characterized in that polished rod eye comprises polished rod eye body, load transducer and outstanding rope; Polished rod eye body is provided with load transducer.
4.
shifting balance digitlization oil pumper according to claim 1 and 2, it is characterized in that base being installed with Digital Control cabinet, at Digital Control cabinet internal fixtion, central processing unit, communication module, power module, display module, electricity quantity module, three phase electrical parameters harvester, control panel, on off control relay, frequency converter, mair motor frequency-changing AC contactor, mair motor industrial frequency AC contactor, comprehensive protector of motor, balancing control relay, balance motor A.C. contactor and current transducer are installed; the signal output part of load transducer is electrically connected by the first signal input part of load transducer cable and lower stube cable and central processing unit, the signal output part of stroke procedure measuring appliance is electrically connected by the secondary signal input of movable cable and lower stube cable and central processing unit, the power input line of the reducer of band balance motor is provided with current transducer, the signal output part of current transducer and the 3rd signal input part of central processing unit are electrically connected by wire, the signal output part of down stroke inductive switch and up stroke inductive switch is by upper stube cable, 4th signal input part of movable cable and lower stube cable and central processing unit is electrically connected, the signal output part of down stroke inductive switch and up stroke inductive switch is by upper stube cable, the signal input part of movable cable and lower stube cable and balancing control relay is electrically connected, first signal output part of central processing unit and the signal input part of balancing control relay are electrically connected by wire, the signal output part of balancing control relay and the signal input part of balance motor AC contactor are electrically connected by wire, the output of balance motor A.C. contactor and the input of balance motor are electrically connected by wire, the output of balance motor A.C. contactor and the signal input part of current transducer are electrically connected by wire, the secondary signal output of central processing unit and the signal input part of on off control relay are electrically connected by wire, the signal output part of on off control relay and the signal input part of mair motor industrial frequency AC contactor are electrically connected by wire, the output of mair motor industrial frequency AC contactor and the input of mair motor are electrically connected by wire, the signal output part of on off control relay and the signal input part of mair motor frequency-changing AC contactor are electrically connected by wire, the output of mair motor frequency-changing AC contactor and the input of mair motor are electrically connected by wire.
5.
shifting balance digitlization oil pumper according to claim 3, it is characterized in that base being installed with Digital Control cabinet, at Digital Control cabinet internal fixtion, central processing unit, communication module, power module, display module, electricity quantity module, three phase electrical parameters harvester, control panel, on off control relay, frequency converter, mair motor frequency-changing AC contactor, mair motor industrial frequency AC contactor, comprehensive protector of motor, balancing control relay, balance motor A.C. contactor and current transducer are installed; the signal output part of load transducer is electrically connected by the first signal input part of load transducer cable and lower stube cable and central processing unit, the signal output part of stroke procedure measuring appliance is electrically connected by the secondary signal input of movable cable and lower stube cable and central processing unit, the power input line of the reducer of band balance motor is provided with current transducer, the signal output part of current transducer and the 3rd signal input part of central processing unit are electrically connected by wire, the signal output part of down stroke inductive switch and up stroke inductive switch is by upper stube cable, 4th signal input part of movable cable and lower stube cable and central processing unit is electrically connected, the signal output part of down stroke inductive switch and up stroke inductive switch is by upper stube cable, the signal input part of movable cable and lower stube cable and balancing control relay is electrically connected, first signal output part of central processing unit and the signal input part of balancing control relay are electrically connected by wire, the signal output part of balancing control relay and the signal input part of balance motor AC contactor are electrically connected by wire, the output of balance motor A.C. contactor and the input of balance motor are electrically connected by wire, the output of balance motor A.C. contactor and the signal input part of current transducer are electrically connected by wire, the secondary signal output of central processing unit and the signal input part of on off control relay are electrically connected by wire, the signal output part of on off control relay and the signal input part of mair motor industrial frequency AC contactor are electrically connected by wire, the output of mair motor industrial frequency AC contactor and the input of mair motor are electrically connected by wire, the signal output part of on off control relay and the signal input part of mair motor frequency-changing AC contactor are electrically connected by wire, the output of mair motor frequency-changing AC contactor and the input of mair motor are electrically connected by wire.
6.
shifting balance digitlization oil pumper according to claim 1 and 2, is characterized in that being with the left end of the reducer power output shaft of balance motor to be fixed with square head or six square toes, balance arm is installed with crank supporting seat; Or/and, base is provided with belt pulley fast replacing device, and the lower end of belt pulley fast replacing device is hinged on base, and the upper surface of belt pulley fast replacing device is installed with mair motor, support is hinged with support bar, walking beam has the corresponding free bearing connecting support bar; Or/and, be installed with buffer at the left part of base; Or/and three phase electrical parameters harvester is electrical quantity dynamic equilibrium tester or current transformer.
7.
shifting balance digitlization oil pumper according to claim 3, is characterized in that being with the left end of the reducer power output shaft of balance motor to be fixed with square head or six square toes, balance arm is installed with crank supporting seat; Or/and, base is provided with belt pulley fast replacing device, and the lower end of belt pulley fast replacing device is hinged on base, and the upper surface of belt pulley fast replacing device is installed with mair motor, support is hinged with support bar, walking beam has the corresponding free bearing connecting support bar; Or/and, be installed with buffer at the left part of base; Or/and three phase electrical parameters harvester is electrical quantity dynamic equilibrium tester or current transformer.
8.
shifting balance digitlization oil pumper according to claim 4, is characterized in that being with the left end of the reducer power output shaft of balance motor to be fixed with square head or six square toes, balance arm is installed with crank supporting seat; Or/and, base is provided with belt pulley fast replacing device, and the lower end of belt pulley fast replacing device is hinged on base, and the upper surface of belt pulley fast replacing device is installed with mair motor, support is hinged with support bar, walking beam has the corresponding free bearing connecting support bar; Or/and, be installed with buffer at the left part of base; Or/and three phase electrical parameters harvester is electrical quantity dynamic equilibrium tester or current transformer.
9.
shifting balance digitlization oil pumper according to claim 5, is characterized in that being with the left end of the reducer power output shaft of balance motor to be fixed with square head or six square toes, balance arm is installed with crank supporting seat; Or/and, base is provided with belt pulley fast replacing device, and the lower end of belt pulley fast replacing device is hinged on base, and the upper surface of belt pulley fast replacing device is installed with mair motor, support is hinged with support bar, walking beam has the corresponding free bearing connecting support bar; Or/and, be installed with buffer at the left part of base; Or/and three phase electrical parameters harvester is electrical quantity dynamic equilibrium tester or current transformer.
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| CN201420868973.2U CN204402440U (en) | 2014-12-31 | 2014-12-31 | Shifting balance digitlization oil pumper |
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| CN204402440U true CN204402440U (en) | 2015-06-17 |
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| WO2016107593A1 (en) * | 2014-12-31 | 2016-07-07 | 新疆维吾尔自治区第三机床厂 | Digitized automatically controlled oil-pumping method and balance-shifting digitized pumpjack |
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| CN104989327A (en) * | 2015-06-26 | 2015-10-21 | 中国石油化工股份有限公司胜利油田分公司 | Oil sucking machine self-adaptive balance regulating device |
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| CN109184669A (en) * | 2018-08-03 | 2019-01-11 | 常州大学 | A kind of concentration visual presentation method of oil well production dynamic monitoring data |
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