CN203257387U - Novel vertical mechanical reversing energy-saving pumping unit - Google Patents
Novel vertical mechanical reversing energy-saving pumping unit Download PDFInfo
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- CN203257387U CN203257387U CN 201320278397 CN201320278397U CN203257387U CN 203257387 U CN203257387 U CN 203257387U CN 201320278397 CN201320278397 CN 201320278397 CN 201320278397 U CN201320278397 U CN 201320278397U CN 203257387 U CN203257387 U CN 203257387U
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Abstract
The utility model provides a novel vertical mechanical reversing energy-saving pumping unit. The novel vertical mechanical reversing energy-saving pumping unit is characterized in that a transmission system adopts an oil-immersed lubrication totally-closed reduction gearbox which adopts mechanical reversing and double-circuit gears for transmitting force, the forward and backward rotations of a head sheave of the pumping unit are realized, in order to ensure that a sucker rod and a counter weight with the enormous inertia are decelerated and buffered and stop before reaching the top dead center and the bottom dead center, the pumping unit is provided with a crank buffer device so as to ensure that the impact energy is gradually absorbed and stored, and after the sucker rod and the counter weight pass through the top dead center and the bottom dead center, the stored energy is released, so that the stable starting of the top dead center and the bottom dead center is realized under the condition that the input speed and the torque of a motor are basically stable. The novel vertical type mechanical reversing energy-saving pumping unit has the advantages that the pumping unit is mechanically reversed and lubricated in a closing-type oil immersion manner and has relatively strong capacity of adapting to severe environments; the motor operates in the same direction all the time, a complicated electric control system is not adopted, and the vertical mechanical reversing energy-saving pumping unit has high reliability and is easy to maintain and repair; a PLC (Programmable Logical Controller) is used for controlling the operation of the pumping unit, and an important system adopts double-circuit backup, so that the reliability and stability of the pumping unit are improved.
Description
Technical field
The utility model relates to a kind of novel vertical mechanical commutation energy-saving pumping unit, belongs to field of petroleum exploitation.
Background technology
The employing mode that market accounts for main flow of recovering the oil by land still has bar lifting type oil production method, because the advantages of this oil-extraction method, in visible future, possibility that this ratio does not reduce, market capacity will keep maximum.
The oil pumper that this oil production technology is used mainly is divided into two large classes:
1. beam pumping unit
Beam pumping unit is commonly called as " machine of kowtowing ", is traditional pumping unit of oil field extensive use, is usually directly dragged by ordinary ac asynchronous motor.Its crank band drives sucker rod with balance, drives downhole pump the pumping of cycle that fix, and the oil of down-hole is delivered to ground.
2. vertical oil-pumping machine
Vertical oil-pumping machine has a lot of advantages with respect to traditional beam pumping unit, as improving oil recovery efficiency, increases oil production rate; Reduce wear, improve sucker rod and oil well pump life-span; Discharge capacity is stable, and dynamic loading is little, and accident is few; Smooth running, fatigue stress is low, and stress-number of cycles is few etc.Adopt long stroke oil pumping mode, the actual loss of plunger stroke of oil pump plunger piston less can be improved discharge coefficient and the coefficient of fullness of oil well pump, improves oil recovery efficiency, increases oil production rate, the reduction cost for oil production.
The outstanding problems such as but also there are some short slabs in vertical oil-pumping machine, wherein commutates, buffering, reliability also are one of major obstacles that runs in the extension process, and it is several that present solution mainly contains, but the situation after reality is used is unsatisfactory.
1) chain type oil pump
Chain type vertical mechanical commutation energy-saving pumping unit is to use now maximum vertical oil-pumping machines, reversing mode as shown in Figure 8, in fact the head of crank throw 8-6 is serving as the specific links of path chain 8-2, and its circular shaft part inserts apparatus for suspension 8-5, can rotate in apparatus for suspension 8-5.The tandem-driving bogie 8-3 of oil pumper is fixed on and comes and goes on the frame 8-4, and apparatus for suspension 8-5 can be along the guide rail transverse shifting in round frame 8-4.Crank throw 8-6 makes shuttling movement with path chain 8-2, when the circular arc portion that moves to path chain 8-2 as crank throw 8-6 is upper sprocket wheel 8-1 part, it continues to drive round frame 8-4 and moves upward, drive simultaneously apparatus for suspension 8-5 along the guide rail transverse shifting, arriving the round frame 8-4 change of peak after crank 8-6 drive direction moves downward, drive simultaneously apparatus for suspension 8-5 and continue transverse shifting along guide rail, come and go the again down stroke of relative static realization oil pumper of frame 8-4 and apparatus for suspension 8-5 behind the vertical component of chain 8-2 until crank throw 8-6 runs to.Also realize in an identical manner commutation at lower sprocket 8-7 place.
2) frequency conversion reversing-type pumping unit
Adopt the operation of inverter control motor, the rotating excitation field of different frequency is provided by frequency converter during commutation, accurately direction and the speed of controlled motion realize buffering and the commutation of oil pumper.
Above oil pumper exists huge shortcoming and defect, particularly, is summarized as follows:
1. beam pumping unit major defect:
1) volume, weight are large, the waste great deal of steel;
2) the running energy consumption is large, and along with rising steadily of electricity price, lifting expenses is high;
3) can not realize the long stroke operation.
4) stripper well can not satisfy the requirement of output;
5) the water flood field later stage, can not satisfy the requirement of output.
But along with the development of society, although the walking beam oil production machine has been carried out many improvement, shortcoming also is apparent.For beam machine, now increasing long stroke, the requirement of low energy consumption oil producing operation almost are impassable obstacles.
2. chain type oil pump major defect:
1) changement is bulky, and parts are many, complex structure, and cost is high.
2) lubricating system is semi-open type, and a little less than the resistivity that the pollution of environment is corroded to external world, lubricant effect is unstable, the region of use be very limited (such as the large extremely frigid zones of dust storm).
3) maintenance and replacing difficulty after the wearing and tearing, can produce vibration and noise, and buffering effect is further reduced, and the mode of occupation of complete machine is worsened, and very large potential safety hazard is arranged.
4) after adopting belt to replace the part wire rope, although buffering and noise improve, the cost of belt is high, the life-span is short, and replacing, difficult in maintenance is more responsive to dust storm, the adverse circumstances such as high and cold, is very restricted in the use.
5) can not realize the variable speed coupling of uplink and downlink.
6) controlled stroke can not be adjusted.
3. the major defect of frequency conversion reversing-type pumping unit:
1) adopt the sophisticated electronic control technology, poor reliability is not suitable with adverse circumstances.
2) the frequent starting motor is many, and power consumption is high.
3) because operating mode rises and falls greatly, and frequency converter, motor, driving belt generate heat serious, application life is short.
4) high frequency of frequency converter generation can produce electrical network and disturb.
5) corrective maintenance difficulty, the later maintenance expense is high.
Therefore, this area is badly in need of a kind of novel oil pumper and is solved above problem.
Summary of the invention
The utility model provides a kind of novel vertical mechanical commutation energy-saving pumping unit to overcome above shortcoming.
Scheme of the present utility model is specific as follows:
Novel vertical mechanical commutation energy-saving pumping unit of the present utility model comprises frame, motor, head sheave, wire rope, balancing weight, wherein between head sheave and motor, also comprise a communtation deceleration device, described communtation deceleration device is the mechanical commutation reducer, its input links to each other with motor, output links to each other with head sheave, begin to comprise successively the power distribution gear train from input, the planet circular system of two groups of parallel connections, power merges gear train, terminal planetary reduction gear, each the personal check mechanism conversion of the planet circular system of two groups of parallel connections makes its alternate run under free state and drive state, power merges gear train and has four gears, two gears are accepted the power that two groups of planet circular systems transmit separately up and down, one of them exports middle two gears as power, another is used for conversion power outbound course, and middle two gears have different number of teeth combinations.The mechanical commutation reducer makes motor can remain on a direction and rotates, and is continual and steady, therefore also can not produce electrical network and disturb.
Check mechanism used in the planet circular system gear train adopts hydraulic braking; and two cover oil pump assemblies are set; each assembly comprises an oil pump, overflow valve, motor and an one way valve; separately by unidirectional isolated; two cover systems are taken turns to operate by PLC control; wherein a cover is shut down or during fault, another set of work.Thereby easy access safeguards, and a cover is shut down or also can not caused whole shutdown of pumping machine during fault therein.
In this two covers oil pump assembly, be connected with separately sensor; the signal of sensor is connected to PLC and is connected to the control room, oil field by communication interface; when sensor detects that a cover is shut down or when setting up hydraulic pressure; signal is passed to PLC; PLC will enable immediately another set of back-up system and start working; the simultaneous faults signal also sends to the control room, oil field, and the oilfield servicing personnel can according to fault message, be with corresponding spare part to keep in repair to the scene.
Between two loops switch valve is set, when the maintenance pumping plant, does not affect the normal operation of another group pumping plant, make maintenance process not affect production, reduce the shutdown loss in oil field.
The switching of two hydraulic brake systems is controlled with reversal valve, for further improving reliability, two of also being set to walk abreast of reversal valve, when one of them breaks down, also can not affect the normal operation of system, reversal valve is equipped with sensor, can in time notify the control room, oil field after breaking down.
In addition, between the output of communtation deceleration device and head sheave, adopt yielding coupling to be connected, to play certain buffering Noise Reduction.
As previously discussed, switch operation relies on mechanical device to finish, and therefore can control the physical dimension of changement, thereby can be encapsulated in the casing of closed lubrication.Therefore communtation deceleration device of the present utility model also has can as casing, only exposes input and output, thereby whole transmission system can adopt reliable sealing oil immersed type lubricated, thereby reduces environment to the impact of equipment, moves more reliable.And the exposed parts of equipment does not adopt the large component of natural conditions restriction such as belt chain, and it is regional that equipment can be used in the oil recovery of all environment.
In vertical mechanical of the present utility model commutation energy-saving pumping unit, also comprise a crank-type mechanical commutation buffer, be used for when the sucker rod up-down stroke change impact of generation and carry out energy-storage buffering.Described crank-type mechanical commutation buffer comprises 2 cover crank counterweights, 4 upper collision blocks, 4 lower collision blocks, 8 cover slideways, article 2, the wire rope of connecting crank counterweight, article 4, in the connection, the wire rope of lower collision block, 2 crosses swing joint, crank counterweight and lower collision block assembly are installed in the bottom of frame, upper collision block assembly is installed in upper rack, slideway is installed on the frame, for in the slideway that reduces to rub roller being housed, on, lower collision block can be done along slideway, lower motion, one group two upper collision blocks link together by connector, wire rope is connected cross with connector and is swung joint and connect with the crank counterweight, upper collision block vertical direction motion can spur the crank counterweight and swing.When running to the top as upstroke, balancing weight spurs the crank counterweight by upper collision block, thereby impact force and the accumulation of energy of buffering upstroke, the same day, by turns when be down stroke, this part energy helped promotion balancing weight descending, when running into lower collision block, also as above obtain buffering and accumulation of energy.Thereby the impact that sucker rod and counterweight cause because of larger weight can obtain buffering, and energy is saved.Adopt a crank device to connect sucker rod and the counterweight of vertical mechanical commutation energy-saving pumping unit, before the uplink and downlink stop of oil pumper, inertia to sucker rod and counterweight carries out buffer deceleration, utilize cleverly crank mechanism, make the mild increase of oil pumper decelerative force, utilize simultaneously the crank accumulation of energy, after commutation, discharge the potential energy of savings, make commutation process steady, reduce the impact of power, transmission device, improve the life-span, make electrical network steady, can be equipped with less motor and reduction box, reduce the oil pumper manufacturing cost, realize the aim of oil field energy saving consumption reduction.
The machine adopts the trussed construction frame, have intensity height, large, the lightweight characteristics of rigidity, for adapting to various length of stroke requirement, improve the specialized quality of production, efficient, frame is divided into three modules, be respectively upper module, bicycle middle module and lower module, the upper collision block assembly of head sheave, motor, communtation deceleration device and crank-type mechanical commutation buffer is installed on the upper module, and the crank counterweight of crank-type mechanical commutation buffer and lower collision block assembly are installed on the lower module.The upper and lower part module is installed a lot of subsidiary bodies complicated structure, precision, requirement of strength are higher, can design and produce into canonical form, the Installation and Debugging of parts are finished in factory, ensure the quality of products easily and efficient, reduce the field adjustable workload, and bicycle middle module only works to increase frame, and according to the flexible match height of the needs of oil well stroke, three parts are to on-the-spot, the workload of Installation and Debugging greatly reduces, and quality is more secure.The steel of all structural members are not selected tubular goods, and preventing can not application because of inside, and the corrosion of the section bar inside that causes causes the weakening of structural performance.
Therefore oil pumper of the present utility model can adjust arbitrarily stroke, can carry out following two class adjustment by adjusting range.
When in existing bracket height scope, adjusting, need to will among the position movement of the approach switch of control commutation, travel switch, the PLC travel parameters of encoder be re-entered, the installation site of mobile cushioning collision block, adjust the length of wire rope.
Restriction when adjusting range exceeds bracket height only need to can realize the replacing of pylon intermediate module, adjustment rope capacity, heavily defeated coder parameters.
For making things convenient for workover treatment, the utility model has designed the well workover shift unit, described well workover shift unit comprises concrete foundation, supporting skid rail, displacement screw rod, set bolt, supporting skid rail is arranged on the frame below and connects by stone bolt with concrete foundation, the displacement screw rod is installed in the frame rear portion, and set bolt is used for reinforcing frame.Before the workover treatment, at the rear portion shown position displacement screw rod is installed, frame integral body is dragged backward, after abdicating enough well workovers space, reinforce with bolt temporarily, finish well workover after, with the frame pushed home, retighten again the operation of beginning next round.
Beneficial effect:
1. the employing vertical structure can simply be realized long stroke, smooth running, and fatigue stress is low, and stress-number of cycles is few etc.Adopt long stroke oil pumping mode, the actual loss of plunger stroke of oil pump plunger piston less can be improved discharge coefficient and the coefficient of fullness of oil well pump, improves oil recovery efficiency, increases oil production rate, the reduction cost for oil production.
2. frame adopts the modular combination mode, make the upper and lower part sub-module that most of moving component is installed, can in factory, install, debug complete, installation quality is more guaranteed, efficient is higher, and the Oil Field installation workload is little, employs Large-scale Hoisting equipment time weak point, saves set-up time, cost.
3. the stroke of oil pumper is easy to adjust, and adjusting range only is subjected to the restriction of oil well pump.
4. all driving parts adopts closed oil bath lubrication, and lubricant effect is secure, and thin oil lubricant can reduce the temperature of friction pair, prolongation part life, failure rate is low.
5. with respect to chain making machine, transmission system of the present utility model is not subjected to the impact of dust storm, the adverse circumstances such as high and cold.
6. utilize the conversion of planet circular system motion state to realize commutation, mechanism is simple, ripe, reliable, durable, and commutation steadily, and is easy to adjust, is better than the now reversing mode of all oil pumpers, has really realized the lubricated mechanical commutation of enclosed.
7. reducer adopts the planetary gear train of two-stage, utilized the gear-driven advantage of planet circular system, with respect to other oil pumper transmission systems of same power, the compact conformation of reducer, lightweight, volume is little, gearratio is large, motion is steady, shock resistance, vibration is little, transmission efficiency is high.
8. by to the adjustment of speed reduction gear box, can be according to the concrete operating mode of oil well, realize on the oil pumper slowly lower fast or upper fast lower slow speeds match, make oil well arrive optimum economic benefit.
9. the hydraulic system of reducer adopts many parallels connection of pumps oil supply loop, and is for subsequent use each other, and any one tunnel fault can not produce stopping accident, and can not shut down repairing, and equipment dependability is high.
10. the crank buffer system all is mechanical device, and simple in structure, component are few, and reliability is high, does not have the high accuracy process component, and cost of manufacture is low.
11. the cushion effect adjustment utilizes the weight of crank counterweight to increase and decrease to realize, adjusting operation is carrying out near ground, and safe ready can adapt to dissimilar oil wells to the different requirements of commutation buffering course.
12. the operating distance of the action of buffering is the distance dependent of the same, glide path only, buffer distance is more much bigger than chain type, and buffering course is more steady.
13. buffer distance can be undertaken by adjustment, the up and down slideway increase and decrease cushion block of galianconism cross pin position, and is simple and safe, can cooperate the demand of different cushioning effect distances.
14. because cushion effect swings to finish by the crank counterweight, the cushion effect curve is a round and smooth sine curve, size is relevant with the pendulum angle of crank counterweight with the locus that moving beam arrives, during buffering by 0 to maximum, and commutation process is just in time opposite, application of force process with the oil pumper demand is consistent, realizes mild seamless transitions.
15. galianconism and long-armed design utilize lever principle cleverly, make less crank counterweight change into very large cushion effect, enlargement of force is long-armed and the galianconism Length Ratio, has reduced the volume and weight of device.
16. device can be realized cushioning energy and be converted into commutation startup energy, do not need as frequency conversion type, to utilize reactance, to cushion energy is converted into heat and consumes in vain, use again additional energy to strengthen staring torque during startup, realized green conversion, energy-saving and emission-reduction have reduced client user's energy consumption cost.
17. because the conversion process of above-mentioned energy makes oil pumper when commutation, it is minimum that the motor Input torque fluctuation reduces to, greatly reduce the peak-peak moment of torsion, reduce simultaneously the impact to electrical network, made motor and reduction box can design littlely, reduced the cost of processing and manufacturing.
18. after the fluctuation of load of motor and transmission system reduces, can select more low power motor, and motor is operated in basically under the declared working condition, save the consumption of electric energy, the motion of each drive disk assembly is more steady, has reduced the wearing and tearing of equipment, has alleviated client user's maintaining cost.
19. special-purpose well workover mobile device is set, improve well workover efficient, reduce operation costs.
Description of drawings
Fig. 1 is the integrally-built schematic diagram of vertical mechanical commutation energy-saving pumping unit of the present utility model.
Fig. 2 is the integrally-built schematic diagram of communtation deceleration device used in the vertical mechanical of the present utility model commutation energy-saving pumping unit.
Fig. 3 is the STRUCTURE DECOMPOSITION schematic diagram of communtation deceleration device used in the vertical mechanical of the present utility model commutation energy-saving pumping unit.
Fig. 4 is the structural representation of crank-type mechanical commutation buffer used in the vertical mechanical of the present utility model commutation energy-saving pumping unit.
Fig. 5 is the schematic diagram of the hydraulic system of used liquid braking device in the communtation deceleration device used in the vertical mechanical of the present utility model commutation energy-saving pumping unit.
Fig. 6 is the schematic diagram of syllogic frame used in the vertical mechanical of the present utility model commutation energy-saving pumping unit.
Fig. 7 is the schematic diagram of well workover shift unit used in the vertical mechanical of the present utility model commutation energy-saving pumping unit.
Fig. 8 is the schematic diagram of the changement of prior art chain type oil pump.
In the drawings:
The 1-1 switch board; The 1-2 ground; The 1-3 supporting track; 1-4 crank buffer; The 1-5 counterweight; The 1-6 frame; The 1-7 head sheave; The 1-8 wire rope; The 1-9 polished rod; The 2-1 motor; The 2-2 driving-belt; The 2-3 electromagnetic brake; The 2-4 brake; The 2-5 reducer; The 2-6 yielding coupling; The 3-1 driving gear; 3-2 driven gear 1; 3-3 driven gear 2; 3-4 planet circular system 1; 3-5 planet circular system 2; 3-6 brake 1; 3-7 brake 2; 3-8 merges gear 1; 3-9 merges gear 2; The 3-10 transition gear; 3-11 merges gear 3; The terminal planetary reduction gear of 3-12; The 4-1 head sheave; The 4-2 wire rope; The 4-3 counterweight; The upper collision block of 4-4; Collision block under the 4-5; The 4-6 slideway; The 4-7 fixed pulley; The 4-8 slide bar; 4-9 crank counterweight; The 4-10 cross swings joint; The 7-1 frame; The 7-2 screw rod that is shifted; The 7-3 supporting skid rail; The 7-4 concrete foundation; The 7-5 set bolt; The 8-1 upper sprocket wheel; The 8-2 chain; The 8-3 tandem-driving bogie; 8-4 comes and goes frame; The 8-5 apparatus for suspension; The 8-6 crank throw; The 8-7 lower sprocket.
The specific embodiment
Come the utility model is described further below in conjunction with accompanying drawing.Should be appreciated that accompanying drawing only is to have illustrated certain preferred embodiments of the present utility model, protection domain of the present utility model is not restricted, protection domain of the present utility model is limited by claims only.
Can the overall structure of vertical mechanical commutation energy-saving pumping unit of the present utility model be obtained understanding in conjunction with Fig. 1.Oil pumper of the present utility model adopts the vertical structure layout, mainly comprises the parts such as frame 1-6, head sheave 1-7, mechanical commutation reducer, crank buffer 1-4, wire rope 1-8, polished rod eye, counterweight 1-5, auxiliary hydraulic system, electrical control cabinet 1-1, well workover shift unit.Polished rod 1-9 upper end connecting steel wire ropes 1-8, the lower end connects the oil recovery bar.The well workover shift unit comprises the supporting track 1-3 that is positioned at frame lower, is fixed on the ground 1-2.
Frame adopts trussed construction, the top arranges head sheave, sucker rod and counterweight are suspended on respectively the both sides of head sheave, the rotating of head sheave drives them and rises and descend, adopt motor as power, adopt a mechanical commutation reduction box to carry out the transmission of power, the commutation function of oil pumper, slow down and increase square, band carries start-up performance and is provided by this reducer, because the Heavy Weight of sucker rod and counterweight, inertia is very large, crank-type buffering counter weight device arrives them, carry out before bottom dead center deceleration buffer, accumulation of energy, the additional energy that starts is provided when reverse starting, and the operation process of oil pumper adopts PLC control, all adopts solid-state devices, enough device backups are set, guarantee security of system, reliably, fault-tolerant.
As shown in Figure 2, the power of motor 2-1 is input to the mechanical commutation reduction box by driving-belt 2-2.The mechanical commutation reduction box comprises after accepting power input reducer 2-5 processes to be exported, and reducer 2-5 makes outputting power commutate corresponding to the commutation of head sheave by the brake 2-4 that wherein comprises.Between reducer and head sheave, adopt yielding coupling 2-6 to be connected to play certain buffering noise reduction effect.The opposite side of head sheave arranges electromagnetic brake 2-3.
Fig. 3 shows the structure of communtation deceleration device used in the vertical mechanical commutation energy-saving pumping unit of the present utility model.The motor input power enters the mechanical commutation reduction box, by by driving gear 3-1, the power distribution gear train that driven gear 1 3-2 and driven gear 2 3-3 form is with planet circular system 1 3-4 and planet circular system 2 3-5s of power distribution to two groups of parallel connections, every group of planet circular system changed with brake 1 3-6 and brake 2 3-7, make these two planet circular systems at free state and deceleration transmission state alternate run, power merging gear train is set behind two groups of planet circular systems merges power, drive again terminal planetary reduction gear 3-12, finally transmit power on the head sheave, two groups of parallel planet circular systems replace the conversion work state by check mechanism, realize the mechanical commutation operation of head sheave.
The mechanical switching reducer, can realize in parts that deceleration increases the function of square, mechanical commutation, commutation buffering, all drive disk assemblies are installed in the reduction box of sealing, it is lubricated to carry out oil immersed type, lubricated, good cooling results, be not subjected to external environmental interference, the main column gear transmission that adopts on the drive line, mechanical efficiency is high.
Power merges gear train by merging gear 1 3-8, merge gear 2 3-9, transition gear 3-10 and merging gear 3-11 form, wherein, merge gear 2 3-9 and with transition gear 3-10 different number of teeth combinations is arranged, can change the wherein velocity of rotation of a drive path, situation setting according to oil well, make the speed of the oil pumping stroke of oil pumper and backhaul not identical, for example in the situation of high pressure thin oil, improve opening speed, slowly lower fast combination in the realization, improve output, under the viscous crude hole condition, reduce falling speed, improve the full state of oil pump, fast lower slow in the realization, improve pump efficiency.
In vertical mechanical commutation energy-saving pumping unit of the present utility model, use crank-type mechanical commutation buffer to connect sucker rod and the counterweight of vertical mechanical commutation energy-saving pumping unit, upper at oil pumper, before the descending stop, inertia to sucker rod and counterweight carries out buffer deceleration, utilize cleverly crank mechanism, make the mild increase of oil pumper decelerative force, utilize simultaneously the crank accumulation of energy, after commutation, discharge the potential energy of savings, make commutation process steady, reduce power, the impact of transmission device, improve the life-span, make electrical network steady, can be equipped with less motor and reduction box, reducing the oil pumper manufacturing cost is purpose, realizes the aim of oil field energy saving consumption reduction.
The crank-type buffer gear adopt to swing the counterweight buffering that commutates.As shown in Figure 4, main part comprises that 2 cover crank counterweight 4-9,4 upper collision block 4-4,4 lower collision block 4-5,4 fixed pulley 4-7,8 slideway 4-6, the wire rope of 2 connecting crank counterweights, 4 wire rope that connect upper and lower collision block, 2 crosses swing joint 4-10 and the wire rope of 2 connecting crank counterweights and the slide bar 4-8 between the crank counterweight.Crank counterweight and lower collision block assembly are installed in the bottom of oil pumper truss, and upper collision block assembly is installed in truss top, as shown in the figure.Slideway is installed on the oil pumper truss, for in the slideway that reduces to rub roller being housed, upper and lower collision block can be done upper and lower moving along slideway, one group two upper collision blocks link together by connector, wire rope is connected cross with connector and is swung joint and connect with the crank counterweight, upper collision block vertical direction motion can spur the crank counterweight and swing.Thereby realize head sheave 4-1, wire rope 4-2 and the counterweight 4-3 energy-storage buffering when doing the up-down stroke conversion.
The machine adopts in hydraulic bending moment type mechanical damping reducer part; two wet brakes, a fluid torque-converter have been adopted; these two parts need to cool off fluid; the normal operation of assurance parts; wherein wet brake needs low pressure oil to operate; the system failure can cause shutdown of pumping machine in addition, needs system that very high reliability is arranged.
In order to improve system survivability and reliability, hydraulic system oil pump and motor adopt the oil immersed type design, and body is immersed in the fluid all the time during work, and cooling effect is more reliable, failure rate is low.
Hydraulic system arranges two-way protection loop; brake hydraulic braking system as shown in Figure 5; two cover oil pump assemblies are set, and each assembly comprises an oil pump, overflow valve, motor and an one way valve, separately by unidirectional isolated; can not affect each other and work; two cover systems are taken turns to operate by PLC control, wherein during a cover job, and another set of shutdown; can check, safeguard, improve the life-span of pumping plant.
When breaking down, a cover wherein causes shutting down or when setting up hydraulic pressure; notify PLC by sensor with failure condition; PLC enables immediately another set of back-up system and starts working; simultaneously; PLC passes through communication interface; fault message is sent to the control room, oil field, and the oilfield servicing personnel can according to fault message, be with corresponding spare part to keep in repair to the scene.
The switch valve (not shown) is set between two loops, when the maintenance pumping plant, does not affect the normal operation of another group pumping plant, make maintenance process not affect production, reduce the shutdown loss in oil field.
Be further to improve reliability, two of also being set to walk abreast of reversal valve when one of them breaks down, also can not affect the normal operation of system, and reversal valve is equipped with sensor, can in time notify the control room, oil field after breaking down.
The machine can be adjusted arbitrarily stroke, can carry out following two class adjustment by adjusting range:
When in existing bracket height scope, adjusting, need to will among the position movement of the approach switch of control commutation, travel switch, the PLC travel parameters of encoder be re-entered, the installation site of mobile cushioning collision block, adjust the length of wire rope.
Restriction when adjusting range exceeds bracket height only need to can realize the replacing of pylon intermediate module, adjustment rope capacity, heavily defeated coder parameters.
The machine adopts the trussed construction frame, has the intensity height, rigidity is large, lightweight characteristics, for adapting to various length of stroke requirement, improve the specialized quality of production, efficient, as shown in Figure 6, we are divided into three modules with truss, upper module, bicycle middle module, lower module, on, lower module is installed a lot of subsidiary bodies complicated structure, precision, requirement of strength is higher, can design and produce into canonical form, the Installation and Debugging of parts are finished in factory, ensure the quality of products easily and efficient, reduce the field adjustable workload, and bicycle middle module only works to increase frame, according to the flexible match height of the needs of oil well stroke, three parts are to on-the-spot, and the workload of Installation and Debugging greatly reduces, and quality is more secure.The steel of all structural members are not selected tubular goods, and preventing can not application because of inside, and the corrosion of the section bar inside that causes causes the weakening of structural performance.
For making things convenient for workover treatment, the machine has designed the well workover shift unit, as shown in Figure 7.Supporting skid rail 7-3 is set below frame 7-1, and supporting skid rail 7-3 connects by stone bolt with concrete foundation 7-4, directly is placed on the basis, uses section steel manufacture, the surfacing of slideway.During the oil pumper normal operation, frame is placed on the slideway, utilizes set bolt 7-5 to connect with slideway.Before the workover treatment, at the rear portion shown position displacement screw rod 7-2 is installed, frame integral body is dragged backward, after abdicating enough well workovers space, reinforce with bolt temporarily, finish well workover after, with frame 7-1 pushed home, retighten again the operation of beginning next round.
The above is described in detail embodiment of the present utility model by reference to the accompanying drawings, but the utility model is not limited to above-mentioned embodiment, in the ken that affiliated technical field those of ordinary skill possesses, can also under the prerequisite that does not break away from the utility model aim, make a variety of changes.
Claims (10)
1. vertical mechanical commutation energy-saving pumping unit, comprise frame, motor, head sheave, wire rope, balancing weight, it is characterized in that, also comprise a communtation deceleration device between head sheave and the motor, described communtation deceleration device is the mechanical commutation reducer, its input links to each other with motor, output links to each other with head sheave, begin to comprise successively the power distribution gear train from input, the planet circular system of two groups of parallel connections, power merges gear train, terminal planetary reduction gear, each the personal check mechanism conversion of the planet circular system of two groups of parallel connections makes its alternate run under free state and drive state, power merges gear train and has four gears, two gears are accepted the power that two groups of planet circular systems transmit separately up and down, one of them exports middle two gears as power, another is used for conversion power outbound course, and middle two gears have different number of teeth combinations.
2. vertical mechanical as claimed in claim 1 commutation energy-saving pumping unit, it is characterized in that, described check mechanism adopts hydraulic braking, and two cover oil pump assemblies are set, each assembly comprises an oil pump, overflow valve, motor and an one way valve, by unidirectional isolated, two cover systems are taken turns to operate by PLC control separately.
3. vertical mechanical commutation energy-saving pumping unit as claimed in claim 2 is characterized in that, is connected with separately sensor in described two cover oil pump assemblies, and the signal of sensor is connected to PLC and is connected to the control room, oil field by communication interface.
4. vertical mechanical commutation energy-saving pumping unit as claimed in claim 2 is characterized in that, the reversal valve that is used alternatingly of two hydraulic brake systems drives, and described reversal valve is provided with parallel two.
5. vertical mechanical as claimed in claim 1 commutation energy-saving pumping unit is characterized in that, adopts yielding coupling to be connected between the output of communtation deceleration device and head sheave.
6. such as each described vertical mechanical commutation energy-saving pumping unit in the claim 1 to 5, it is characterized in that described communtation deceleration device also has can as casing, only exposes input and output.
7. vertical mechanical as claimed in claim 6 commutation energy-saving pumping unit, it is characterized in that, also comprise a crank-type mechanical commutation buffer, it comprises 2 cover crank counterweights, 4 upper collision blocks, 4 lower collision blocks, 8 slideways, article 2, the wire rope of connecting crank counterweight, article 4, in the connection, the wire rope of lower collision block, 2 crosses swing joint, crank counterweight and lower collision block assembly are installed in the bottom of frame, upper collision block assembly is installed in upper rack, slideway is installed on the frame, roller is housed in the slideway, on, lower collision block can be done along slideway, lower motion, one group two upper collision blocks link together by connector, wire rope is connected cross with connector and is swung joint and connect with the crank counterweight, swing so that upper collision block vertical direction motion can spur the crank counterweight.
8. vertical mechanical as claimed in claim 7 commutation energy-saving pumping unit, it is characterized in that, frame is divided into three modules, be respectively upper module, bicycle middle module and lower module, upper collision block assembly and the fixed pulley of head sheave, motor, communtation deceleration device and crank-type mechanical commutation buffer are installed on the upper module, and the crank counterweight of crank-type mechanical commutation buffer and lower collision block assembly are installed on the lower module.
9. vertical mechanical commutation energy-saving pumping unit as claimed in claim 8 is characterized in that the steel of all structural members are not selected tubular goods.
10. vertical mechanical as claimed in claim 1 commutation energy-saving pumping unit, it is characterized in that, also be provided with a well workover shift unit, described well workover shift unit comprises concrete foundation, supporting skid rail, displacement screw rod, set bolt, supporting skid rail is arranged on the frame below and connects by stone bolt with concrete foundation, the displacement screw rod is installed in the frame rear portion, and set bolt is used for reinforcing frame.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320278397 CN203257387U (en) | 2013-05-21 | 2013-05-21 | Novel vertical mechanical reversing energy-saving pumping unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320278397 CN203257387U (en) | 2013-05-21 | 2013-05-21 | Novel vertical mechanical reversing energy-saving pumping unit |
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| CN203257387U true CN203257387U (en) | 2013-10-30 |
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| CN 201320278397 Withdrawn - After Issue CN203257387U (en) | 2013-05-21 | 2013-05-21 | Novel vertical mechanical reversing energy-saving pumping unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216216A (en) * | 2013-05-21 | 2013-07-24 | 江苏圣乐机械有限公司 | Novel vertical mechanical reversing energy-saving pumping unit |
| CN103557292A (en) * | 2013-11-04 | 2014-02-05 | 湖南南方宇航工业有限公司 | Chain belt type pumping unit |
| CN111810091A (en) * | 2020-06-19 | 2020-10-23 | 合立智能装备有限责任公司 | Full-intelligent vertical hydraulic pumping unit and pumping unit control method |
| CN111810092A (en) * | 2020-06-19 | 2020-10-23 | 合立智能装备有限责任公司 | Automatic stroke frequency setting vertical oil pumping machine and automatic stroke frequency setting control method of oil pumping machine |
-
2013
- 2013-05-21 CN CN 201320278397 patent/CN203257387U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216216A (en) * | 2013-05-21 | 2013-07-24 | 江苏圣乐机械有限公司 | Novel vertical mechanical reversing energy-saving pumping unit |
| CN103557292A (en) * | 2013-11-04 | 2014-02-05 | 湖南南方宇航工业有限公司 | Chain belt type pumping unit |
| CN111810091A (en) * | 2020-06-19 | 2020-10-23 | 合立智能装备有限责任公司 | Full-intelligent vertical hydraulic pumping unit and pumping unit control method |
| CN111810092A (en) * | 2020-06-19 | 2020-10-23 | 合立智能装备有限责任公司 | Automatic stroke frequency setting vertical oil pumping machine and automatic stroke frequency setting control method of oil pumping machine |
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