CN201991493U - Energy-saving gas liquid operated oil pumping unit - Google Patents
Energy-saving gas liquid operated oil pumping unit Download PDFInfo
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- CN201991493U CN201991493U CN2010206257806U CN201020625780U CN201991493U CN 201991493 U CN201991493 U CN 201991493U CN 2010206257806 U CN2010206257806 U CN 2010206257806U CN 201020625780 U CN201020625780 U CN 201020625780U CN 201991493 U CN201991493 U CN 201991493U
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Abstract
Provided is a long stroke and totally-enclosed energy-saving gas liquid operated oil pumping unit which can control strokes and jig frequency, characterized in that the plunger head of a plunger cylinder is in connection with a crossbeam and directly drives an oil pumping polished rod in the middle of the crossbeam and has a very simple structure. The whole machine is provided with no vulnerable components such as a gear, a bearing, a wire rope, etc., and thoroughly avoids breaking rope accidents. A microcomputer intelligent system controls the controllable strokes and jig frequency to make stroke processes of the oil pumping polished rod apply stress gradually, alleviate starting impact to the oil pumping polished rod and avoid the oil pumping unit from rod breaking, empty pumping, stuck pump and overload. System professional module software collects and optimizes data of each sensor to keep the oil pumping unit always operating in an optimum economic state. The utility model also provides a multistage sealing device which has good sealing performance and high security, and can automatically detect sealing lives and alarm to ensure long-term faultless operation of sealing parts. The greatest characteristic of the utility model lies in that the utility model provides an energy-saving and efficient gas liquid operated power drive system with an energy-saving effect higher than 80%.
Description
Technical field
The utility model relates to oil recovery machiner field, oil field, relates in particular to a kind of totally-enclosed gas-liquid kinetic energy drive system of long stroke of controlled stroke jig frequency and uses the gas-liquid kinetic energy oil pumper of this system.
Background technology
At present, the oil recovery machiner of Oilfield using all adopts mechanically operated beam type and no beam pumping unit.It is slowed down through multi-stage gear by turning motor, affects mechanisms such as wire rope or chain to convert rectilinear motion to by horse head on the walking beam, drives oil pumping polish rod and moves up and down, realizes the oil pumping purpose.As Chinese patent " beam type hydraulic oil pumping machine (CN2561926Y) ", it is made up of machinery and hydraulic pressure two parts.Wherein mechanical part keeps original walking beam, horse head, support, chassis and polished rod eye and outstanding rope; Hydraulic part comprises four chamber oil cylinders, main accumulator, exchange system, oil sources and accessory system.Have bearing to be connected with special horse head between the arm of force end behind cylinder rod and the walking beam and be connected dual mode, this machine is finished balance and oil pumping function by main accumulator, oil cylinder and exchange system; Realize that by accessory system energy-conservation, motion goes up fast slow, super down disconnected year stopping alarm, liquid level stopping alarm, temperature stopping alarm, stroke jig frequency and can be in harmonious proportion functions such as elimination sucker rod partial wear continuously.The oil pumper kinetic characteristic of this structure is poor, mechanical efficiency is low, the degree of balance is poor, energy consumption height, volume heavily wait defective.The component of machine of these intermediate conversion mechanisms, complex structure, consumable accessory are many, and long-term operation easily produces friction and tired, causes various faults.Also has Chinese patent " energy-saving hydraulic oil pumper (CN2194423Y) ", fuel tank, oil filter, prime mover, variable pump, safety valve, accumulator, electro-hydraulic reversing valve, hydraulic cylinder, driving-belt, sucker rod are arranged, feature is that the rodless cavity of hydraulic cylinder has been communicated with an accumulating mechanism, and driving-belt is fixed on the pedestal after by a cylinder and a movable pulley that is located on the piston rod.This hydraulic structure is an open cycle system, and energy-saving effect is bad.
Summary of the invention
The utility model provides long stroke, the totally-enclosed gas-liquid kinetic energy drive system of a kind of controlled stroke, jig frequency and uses the gas-liquid kinetic energy oil pumper of this system.
Gas-liquid kinetic energy oil pumper is characterized in that adopting the plunger case plunger head to connect the oil pumping polish rod that the crossbeam both sides directly drive the crossbeam middle part, and structure is very simple.The intermediate conversion mechanism that complete machine does not have consumable accessorys such as gear, bearing, wire rope, chain to form, the generation that has thoroughly solved rope-broken accident.By Industrial Personal Computer (IPC) and PLC processor intelligence system, control controlled stroke, jig frequency, system gives the gradual reinforcing of sucker rod, makes the sucker rod of upstroke process slow down impact, makes oil pumper avoid that disconnected bar, sky are taken out, the generation of gross overload accident.System's professional module software collection is optimized each sensing data, makes oil pumper be in operation under the optimal economic state all the time.
The utility model also provides a kind of good seal performance simultaneously, and is safe, and the multi-stage sealed device that can detect sealing life automatically and report to the police is guaranteed the long-term failure-free operation of oil pumper.
The maximum characteristics of the utility model are: a kind of energy conservation is provided, and the efficient height, the gas-liquid kinetic energy dynamical system that the low-carbon (LC) emission reduction effect is good, energy-saving effect is up to more than 80%.
Above-mentioned technical problem of the present utility model solves by following technical proposals: a kind of energy-saving gas-liquid kinetic energy oil pumper, comprise base, on described base, be connected with mobile base, be fixed with plunger case and gas-liquid accumulator on the described mobile base, the top of described gas-liquid accumulator is provided with the plunger case fixed mount and is positioned at the protective cover fixed mount of plunger case fixed mount top, be connected with down cable wind rope on the described plunger case fixed mount, described protective cover fixed mount upper end is connected with cable wind rope, plunger end in the described plunger case is connected with crossbeam, described crossbeam middle part is fixed with oil pumping polish rod, be connected with an end of the oil cylinder that rises and retires on described base, the other end of the described oil cylinder that rises and retires is connected on the cylinder bracket that rises and retires; Be connected to protective cover on the described guard shield fixed mount, be connected with an end of folding oil cylinder on the described protective cover, the other end of described folding oil cylinder is fixed on the upper cylinder support.Plunger head is connecting crossbeam, and described crossbeam middle part connects oil pumping polish rod, realizes the oil pumping action thereby the drive oil pumping polish rod moves up and down, and guarantees the operate as normal of oil pumper.Complete machine can be erected or drop to the ground by the oil cylinder that rises and retires, folding simultaneously oil cylinder also can be adjusted the folded state of protective cover.Whole oil pumper member is few, and complete machine does not have consumable accessorys such as intermediate conversion mechanism such as gear, bearing, wire rope, chain, and is simple in structure, in light weight, dependable performance, efficient height.Protective cover is in order to protect plunger not corroded by the dust dust storm, and hawser makes oil pumper normally operation in any abominable weather environment.
As preferably, pulling force sensor is installed in the middle part of the described crossbeam, described pulling force sensor lower end is connected with oil pumping polish rod.
As preferably, described base comprises firm banking and activity adjustment seat, on firm banking, be provided with horizontal slide rail, on described horizontal slide rail, be provided with the activity adjustment seat, the bottom of shown activity adjustment seat is provided with the transverse groove that cooperates with horizontal slide rail, on described activity adjustment seat, be provided with and the horizontal vertical vertical slide rail of slide rail, described mobile base bottom is provided with the projection that cooperates with longitudinal rail, described mobile base and described activity adjustment seat are passed through bolt, one end of the described oil cylinder that rises and retires is fixed on the activity adjustment seat, the described cylinder bracket that rises and retires is positioned on the described gas-liquid accumulator, and described folding cylinder bracket is fixed on the gas-liquid accumulator.The activity adjustment seat can be in longitudinal sliding motion on the vertical slide rail, thereby adjust the lengthwise position of mobile base, simultaneously, mobile base again can be laterally movable on the activity adjustment seat, thereby adjust the lateral attitude of mobile base, thereby oil pumping polish rod is aimed at pithead position, after adjusting mobile base and activity adjustment seat, hawser is fastened, implement oil pumping.
As preferably, be connected with the transition oil cylinder on the described protective cover, an end of described transition oil cylinder is connected on the protective cover by the transition buffer plate, and the other end of described transition oil cylinder is fixed on the plunger case fixed mount.Translate into the center of gravity critical point on the protective cover, the bottom contact transition buffer board of protective cover, after center of gravity was crossed critical point, protective cover was along with the transition oil cylinder is slowly return, and plane on the protective cover bottom contact shielding support is stirred on the protective cover and is finished.Transition oil cylinder and transition buffer plate the stationarity that has improved the protective cover switching process is set, thereby make structure more reasonable, operate more stable.
As preferably, described gas-liquid accumulator is connected with hydraulic oil behind the first 2/2-way valve, first one way valve, first reversal valve, force (forcing) pump and second reversal valve by pipeline successively and promotes plunger in the plunger case and finish the upstroke process and form and drive oil circuit; After the commutation of the first 2/2-way valve, plunger in the plunger case is in the down stroke process, after the pressurization of hydraulic oil by first reversal valve and force (forcing) pump, selecting return line to send hydraulic oil back to the gas-liquid accumulator by second reversal valve forms oil return circuit, drives oil circuit and oil return circuit and constitute closed loop.
Described gas-liquid accumulator is connected with hydraulic oil behind digital starter gate valve, first one way valve, first reversal valve, force (forcing) pump and second reversal valve by pipeline successively and promotes plunger in the plunger case and finish the upstroke process and form and drive oil circuit; Close at digital starter gate valve, after first reversal valve, the commutation of second reversal valve, plunger in the plunger case is in the down stroke process, after the pressurization of hydraulic oil by first reversal valve and force (forcing) pump, selecting return line to send hydraulic oil back to the gas-liquid accumulator by second reversal valve forms oil return circuit, drives oil circuit and oil return circuit and constitute closed loop.The upstroke process of plunger is by the expanding gas in the gas-liquid accumulator fluid to be exerted pressure, the gas-liquid kinetic energy that fluid produces regeneration is converted to the hydraulic pressure energy, hydraulic pressure can be through the force (forcing) pump repressurize, hydraulic pressure after the supercharging can enter in the two side columns plug cylinder working chamber by digital starter gate valve, high-pressure oil pipe, promotes plunger and rises.Oil pumper down stroke process, the oil pumper minimum load enters force (forcing) pump arrival end through plunger to the regenerated liquid pressure energy that produces of exerting pressure of the hydraulic pressure in the plunger case by oil pumping polish rod, the hydraulic oil of extracting out in the plunger case chamber through the force (forcing) pump supercharging is sent the gas-liquid accumulator back to again, the motion of realization down stroke, thereby make oil circuit form closed loop, realize the up-down stroke back and forth movement, upstroke is mainly born by the recovered energy of gas-liquid kinetic energy, force (forcing) pump only adds about 20% auxiliary energy to be finished, down stroke mainly by the oil pumper minimum load by plunger to the generation recovered energy of exerting pressure of the fluid in the plunger case, force (forcing) pump liquid only need add about 20% auxiliary energy to be finished, so the power-driven system energy-saving effect of gas-liquid kinetic energy can reach more than 80%.
The mode of operation of the load of gas-liquid kinetic energy can adopt full load also can adopt lotus mode semi-load, full load mode, the maximum weight P=load deadweight P that the external load of plunger hoists
0+ dynamic load rating weight P
1, the pressure that bears of the gas-liquid accumulator of full load mode is P
Q=P
0+ P
1, semi-load the lotus mode, maximum weight P=load that the external load of plunger hoists deadweight P
0+ dynamic load rating weight P
1/ 2, semi-load, the pressure of gas-liquid accumulator of lotus mode was to bear P
B=P
0+ P
1/ 2, the plunger that full load band load descends, by the deadweight P of load
0To producing the inlet that pressure oil enters force (forcing) pump in the plunger case chamber, through the about P of force (forcing) pump
1/ 5 power increase to P again
Q, send plunger case hydraulic oil back to the gas-liquid accumulator, semi-load, lotus descended with the plunger of load, by the deadweight P of load
0To producing the inlet that pressure oil enters force (forcing) pump in the plunger case chamber, through the about P of force (forcing) pump
1/ 5 rates increase to P again
B, send plunger case hydraulic oil back to the gas-liquid accumulator, as preferably, the rated load of described force (forcing) pump is for carrying out 1/2 of dynamic loading that plunger carried.Gong Zuo system balancing is good like this, and stability is high.Adopt the energy storage pressure of full load big, the cost height, semi-load, the lotus energy storage pressure was little, and cost is low.
As preferably, the rated load of described force (forcing) pump is for carrying out the 18%-22% of the dynamic loading that plunger carried.
As preferably, be connected with air supplying pump and aeration valve between described gas-liquid accumulator and the tonifying Qi motor.Just in case the gas leakage of gas-liquid accumulator, system acquisition starts the tonifying Qi motor automatically to the air pressure dropping signal, opens aeration valve, and air supplying pump reaches setting value to the tonifying Qi of gas-liquid accumulator.The stability of raising system and balance.
As preferably, described plunger case is provided with cylinder body and multi-stage sealed chamber, and the multi-stage sealed indoor multi-stage sealed circle that is provided with is provided with pressure sensor between adjacent two sealing rings.
Described plunger case adopts multi-stage sealed.Multi-stage sealed operating principle: Y
XMinimum green diameter direction gap is 0.12～0.2mm between RunddichtringO and the plunger, and under the effect of plunger case hydraulic pressure, first order sealing ring eliminates the gap to radially direction distortion, realizes sealing.Remaining sealing ring and hydraulic isolation do not participate in seal operation.As process t
1After time, when first order sealing ring increases to critical gap because of wearing clearance, or bear axial compression for a long time because of sealing ring, the sealing ring rearward end is got into the gap and tear that (operating pressure of general sealing ring is up to 32Mpa, native system operating pressure＜7.5Mpa, it is very little this possibility of tearing to occur), at this moment, first order sealing ring lost efficacy, and broke away from seal operation.The sealing ring that hydraulic oil penetrates inefficacy immediately enters the second level.In like manner, second level sealing ring is subjected to hydraulic pressure, and sealing ring is to the distortion of direction radially, eliminated and plunger between the gap, participate in seal operation, through t
2After time, second level sealing ring is to critical gap or tear and lost efficacy, and breaks away from seal operation, has third level sealing ring to take over again.Thus, form a reserve sealing system of constantly taking over.Moreover when a sealing ring job, all the other sealing rings are in unloaded state, do not participate in sealing, and therefore, these sealing rings only produce small wearing and tearing, and the speed of its wearing and tearing is more much smaller than the working seal spare of pressure-bearing.And job specification t
1＞t
2＞t
3...,＞t
N-1＞t
0=0.
The sealing system working index is exactly the life-span of plunger operative minor, and the working life of this multi-stage sealed device equals the working life sum of each seal.Native system multi-stage sealed is according to the abrasion index of seal or by the optimal number of determining seal in the practice.Sealing position chief engineer makes the time limit design objective greater than 10000h.(365 * 24=8760h) defects liability period is changed whole sealing rings, just can guarantee the sealing position of this column plug cylinder, is in long-term failure-free operation if the corrective maintenance phase is decided to be 1 year.
Sealing mechanism is provided with the life-span distant warning device, between each seal, pressure sensor is set, when first order seal fails, when hydraulic pressure enters second level sealing, be contained in 1～2 grade of pressure sensor pressurized between sealing ring and send signal, inform first order seal fails, the pressure sensor that is positioned between 2～3 sealing rings has signal, illustrates that second level sealing ring lost efficacy ... when to the last the one-level sensor sends signal, illustrate that the sealing system working life will finish, system detects caution signal, informs that the monitor staff must formulate maintenance measures immediately or change whole sealing rings, guarantees the normal failure-free operation of oil pumper.
As preferably, described closed chamber is connected by bolt with cylinder body, junction at closed chamber and cylinder body is provided with sealing mat, the inner diameter of described closed chamber equals plunger outer diameter, multi-stage sealed circle is set in the described closed chamber, described safe back-up ring external diameter greater than plunger outer diameter less than cylinder diameter.Closed chamber and cylinder body seal by sealing ring, thereby guarantee the sealing performance of plunger case.Because the external diameter of safe back-up ring is greater than the internal diameter of closed chamber, therefore safe back-up ring just can not up move when moving to the intersection of closed chamber and cylinder body again.Be connected with safe back-up ring in the lower end of plunger, thus can retrain plunger on move the limit, lose constraint in case prevent plunger, can penetrate as guided missile, cause a serious accident, guarantee the reliable operation safety of plunger case.
Therefore, a kind of power-driven system of the present utility model and the gas-liquid kinetic energy oil pumper of using this power-driven system thereof possess following advantage: power-driven system adopts closed loop lotus semi-load mode to operate, save the energy, multi-stage sealed structure, safe, Stability Analysis of Structures, economy compact and reasonable, system's lifting process balance.The oil pumper volume is little, and complete machine does not have quick-wear part, long service life, convenient moving and adjustment.
Description of drawings
Fig. 1 is the front view of oil pumper of the present utility model.
Fig. 2 is the left view in Fig. 1.
Fig. 3 is the oil pumper complete machine schematic diagram of droping to the ground.
Fig. 4 is the folding schematic diagram of protective cover.
Fig. 5 is the sectional structure schematic diagram of left plunger case.
Fig. 6 is the schematic diagram of gas-liquid kinetic energy power-driven system.
Among the figure 1, firm banking, 2, vertical slide rail, 3, the movable base of regulating, 4, the oil cylinder that rises and retires, 5, base bearing pin 5A, mobile base, 6, the gas-liquid accumulator, 7, left side plunger case, 8, right plunger case, 9, folding oil cylinder 10, the plunger case fixed mount, 11, the protective cover fixed mount, 11a, excessive oil cylinder, 11b, excessive buffer board, 12, protective cover, 13, last cable wind rope, 14, the protective cover bearing pin, 14A, folding oil cylinder bearing pin, 15, following cable wind rope 16, folding cylinder bracket, 17, bolt, 17A, bearing pin, 17B, the cylinder bracket that rises and retires, 18, well head, 19, oil pumping polish rod is device in succession, 20, oil pumping polish rod, 21, the oil pumping polish rod sheath, 22, closed chamber, the right plunger of 22A, 23, crossbeam, 23A, pulling force sensor, 23B, cylinder body, 23C, sealing mat, 24A left side plunger, 24C, safe back-up ring, 24, first order sealing ring, 25, second level sealing ring, 26, third level sealing ring, 27, fourth stage sealing ring, 28, N level sealing ring, 29, the final stage sealing ring, 31 dust-proof seal rings, 32, the last stage pressure sensor, 33, N stage pressure sensor, 34, third level pressure sensor, 35, second level pressure sensor, 36, first order pressure sensor 37, digital pressure gauge, 38, first one way valve 39, the numeral starter gate valve, 40, force (forcing) pump, 41, stop valve, 42, the force (forcing) pump motor, 42A, oil return circuit, 43, second reversal valve, 44, drive oil circuit, 45, first reversal valve, 46, second one way valve, 47, the tonifying Qi motor, 48, air supplying pump, 49, aeration valve
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical scheme of utility model is described in further detail.
Embodiment:
As shown in Figure 1, a kind of gas-liquid kinetic energy oil pumper, comprise firm banking 1, on firm banking 1, be fixed with horizontal slide rail 2, laterally on the slide rail 2 activity adjustment seat 3 is being installed, the bottom of activity adjustment seat 3 offers the horizontal concrete chute that cooperates with horizontal slide rail 2, mobile base 5A is installed on activity adjustment seat 3, upper surface in activity adjustment seat 3 is provided with and the horizontal vertical vertical slide rail of slide rail, be provided with the projection that cooperates with vertical slide rail in the bottom surface of mobile base 5A, the relative position of mobile base 5A and activity adjustment seat 3 determines that the back is fixing by bolt 17.Be fixed with the left plunger case 7 that is positioned at front end on the mobile base 5A, right plunger case 8 and the gas-liquid accumulator 6 that is positioned at the plunger case rear side, gas-liquid accumulator 6 is cylindric, the last fixed leg plug cylinder fixed mount 10 of gas-liquid accumulator 6 and the protective cover fixed mount 11 that is positioned at plunger case fixed mount 10 tops, be connected with down cable wind rope 15 on the plunger case fixed mount 10, be connected with cable wind rope 13 on the protective cover fixed mount 11, plunger end in the plunger case is connected with crossbeam 23, crossbeam 23 middle parts are fixed with oil pumping polish rod 20, be connected with an end of the oil cylinder 4 that rises and retires in activity adjustment seat 3, the other end of oil cylinder 4 of rising and retiring is connected on the cylinder bracket 17B that rises and retires by bearing pin 17A, and the oil cylinder 17B that rises and retires is fixed on the gas-liquid accumulator 6; Be connected with protective cover 12 on the guard shield fixed mount 11, be connected with an end of folding oil cylinder 9 on the protective cover 12 by folding oil cylinder bearing pin 14A, the other end of folding oil cylinder 9 is fixed on the folding cylinder bracket 16, and folding cylinder bracket 16 is fixed on the gas-liquid accumulator 6 too.Gas-liquid accumulator 6, left plunger case 7, right plunger case 8 are fixed on the mobile base 5A on the gas-liquid accumulator, form the oil pumper support.Mobile base 5A is hinged on the base bearing pin 5, and the cylinder bottom earrings of the oil cylinder 4 that rises and retires is hinged on the activity adjustment seat 3, and the piston rod head earrings of the oil cylinder 4 that rises and retires is hinged on the bearing pin 17A at gas-liquid accumulator 6 middle parts.Protective cover 12 is hinged on the protective cover bearing pin 14 of shielding support 11.On the bearing pin of the hinged folding cylinder bracket 16 of bottom earrings of folding oil cylinder 9, the piston rod head earrings of folding oil cylinder 9 is hinged on the folding oil cylinder bearing pin 14A.
Adjusting activity adjustment seat 3 just can accurately be aimed at well head 18 with the oil pumping polish rod on the support 20.Tight a bolt 17, be fixed on the activity adjustment seat 3, tighten the bolt that each activity adjustment seat 3 is connected with firm banking 1 again, regulate oil pumping polish rod and pithead position and just finished.
Cable wind rope 13 ties up to protective cover 12 tops on one group, and another group cable rope 15 down ties up on the shielding support 11, and the lower end ties up on the earth anchor, the attack that makes the oil pumping function resist strong storm.
As shown in Figure 2, oil pumping polish rod sheath 21 covers oil pumping polish rod 20, and the lower end of oil pumping polish rod 20 is provided with polished rod connector 19, and the upper end of oil pumping polish rod 20 is provided with pulling force sensor 23A.Plunger 22A, 24A in the protective cover 12 protection motions constitute totally-enclosed system, and protection left and right sides plunger 22A, 24A and oil pumping polish rod 20 are not subjected to the ambient wind dust pollution.
As shown in Figure 3, lay down being connected of cable wind rope 13 and earth anchor, when turning over down, start excessive oil cylinder 11a, promote excessive buffer board 11b, excessively buffer board 11b and protective cover 12 are that bearing pin 14 is the center of circle jointly, excessively buffer board 11b is attached to protective cover 12 bottoms, along with excessive oil cylinder 11a rises, protective cover 12 is to rotation counterclockwise, when the center of gravity that forwards protective cover 12 to is crossed critical point, folding oil cylinder 9 relays, excessively oil cylinder 11a stops, and protective cover 12 is rotated down 180 degree along with folding oil cylinder 9 is slowly return.
When turning on the protective cover 12, handle folding oil cylinder 9, protective cover 12 is the center of circle with bearing pin 14, and along with the rising of folding oil cylinder 9, protective cover 12 turns over along clockwise direction, on translate into the center of gravity critical point, the bottom of protective cover 12 contacts excessive buffer board 11b, and after center of gravity was crossed critical point, protective cover 12 was along with excessive oil cylinder 11a slowly returns, plane on the protective cover 12 bottoms contact shielding support 11 is stirred on the protective cover 12 and is finished.
As shown in Figure 4, the oil pumper complete machine mechanism that erects, drops to the ground, oil pumper support 6 is supported on the mobile base 5A.Mobile base 5A is the center of circle with base bearing pin 5, starts the both sides oil cylinder 4 that rises and retires, and drives the oil pumper complete machine and stands up counterclockwise or drop to the ground clockwise.
As shown in Figure 6, pressure meter 37 is installed on gas-liquid accumulator 6, the exit of gas-liquid accumulator 6 is equipped with stop valve 41, gas-liquid accumulator 6 is connected with digital starter gate valve 39, first one way valve 38, first reversal valve 45, force (forcing) pump 40 and second reversal valve, 43 back hydraulic oil by pipeline successively and promotes left plunger 24A in left plunger case 7 and the right plunger case 8 and right plunger 22A and finish the upstroke process and form and drive oil circuit 44, connect force (forcing) pump motor 42 on the force (forcing) pump, the structure of left plunger case 7 and right plunger case 8 is identical; Between gas-liquid accumulator 6 and the described air supplying pump 48 aeration valve 49 is arranged, be connected with tonifying Qi motor 47 on the air supplying pump 48, just in case 6 gas leakage of gas-liquid accumulator, system acquisition is to the air pressure dropping signal, automatically start the tonifying Qi motor, open aeration valve, air supplying pump 48 reaches setting value to 6 tonifying Qi of gas-liquid accumulator.When carrying out the down stroke process, digital starter gate valve 39 cuts out, after first reversal valve 45 and 43 commutations of second reversal valve, the plunger of carrying out in the plunger case is in the down stroke process, after the pressurization of hydraulic oil by first reversal valve 45 and force (forcing) pump 40, the rated load of force (forcing) pump is 1/5 of the execution dynamic loading that plunger carried, selects oil return circuit 42A to send hydraulic oil back to gas-liquid accumulator 6 by second reversal valve 43 and forms oil return circuit.Drive oil circuit 44 and constitute closed loop with oil return circuit 42A.
As shown in Figure 5, carry out plunger case and comprise closed chamber 22 and cylinder body 23, closed chamber 22 and cylinder body 23 are connected by bolt, are provided with sealing mat 23C in the junction of closed chamber 22 and cylinder body 23, and the inner diameter of closed chamber is less than the internal diameter of cylinder body.On the inwall of closed chamber 22, offer the annular groove that is parallel to each other, in annular groove, be provided with multi-stage sealed circle, between every two adjacent sealing rings, pressure sensor is installed.Carry out in the plunger case and be provided with plunger 24A, the end of plunger 24A is connecting crossbeam, the other end of the plunger safe back-up ring 24C that is threaded, the identical internal diameter greater than closed chamber 22 of internal diameter of the external diameter of safe back-up ring 24C and cylinder body 23.
As shown in Figure 5, closed chamber 22 is equipped with multi-stage sealed circle 24～29, adopt Yx type or U RunddichtringO, multi-stage sealed circle 24～29, minimum green diameter direction gap is 0.12～0.2mm between sealing ring and the plunger 20, during plunger case work, hydraulic oil in the drive post plug cylinder is exerted pressure to first order sealing ring 24, first order sealing ring 24 eliminates the gap to the diametric(al) distortion, realizes sealing.Remaining sealing ring 25～29 is isolated with hydraulic oil, does not participate in seal operation.When through t1 after the time, when first order sealing ring 24 increased to critical gap because of wearing clearance, first order sealing ring 24 lost efficacy, and broke away from seal operation, and the first order sealing ring 24 that hydraulic oil penetrates inefficacy immediately enters the second level.In like manner, second level sealing ring 25 is subjected to air pressure, and second level sealing ring 25 is to the distortion of direction radially, eliminated and plunger 24A between the gap,
Participate in seal operation, after the time, second level sealing ring 25 may wear to critical gap and lost efficacy through t2, breaks away from seal operation, has third level sealing ring 26 to take over again.Thus, form one and have the reserve sealing system of constantly taking over.Moreover when a sealing ring job, all the other sealing rings are in unloaded state, do not participate in sealing, and therefore, these sealing rings only produce small wearing and tearing, and the speed of its wearing and tearing is more much smaller than the sealing ring of pressure-bearing work.And job specification t1＞t2＞t3 ...,＞tn-1＞t0=0.
Among Fig. 5, N level sealing ring 28 is according to the abrasion index of sealing ring or by the best (N level) quantity of determining sealing ring in the practice.The sealing system working index is exactly the life-span of plunger operative minor, and the working life of this multi-stage sealed device equals the working life sum of each sealing ring.The multi-stage sealed device of native system, the time limit design objective of always working was greater than 10000 hours.Change all sealings if the corrective maintenance phase is decided to be 1 year (365 * 24=8760 hour), just can guarantee the soft seal position of this machine drive post plug cylinder, be in continuously long-term failure-free operation.
Safe back-up ring 24C among Fig. 5 is fixed on plunger base, and constraint moves the limit on the plunger, during left closed chamber 22 lower planes of the last plane contact of promptly safe back-up ring 24C, promptly retrains the left plunger 24A limit that moves up.In case prevent the oil pumping polish rod fracture, left plunger 24A, right plunger 22A lose constraint, can penetrate as guided missile, cause a serious accident, and guarantee plunger case reliable operation, safety.
Among the embodiment shown in Figure 6, before the use gas-liquid accumulator 6 is added an amount of fluid, and implement inflation, it is standby to reach setting air pressure.When starting working, open stop valve 41, during upstroke, intelligence control system is instructed digital starter gate valve 39, first reversal valve 45, second reversal valve, 43 up stroke directions, start force (forcing) pump motor 40, drive force (forcing) pump 42, gas-liquid accumulator 6 expanding gas are exerted pressure to fluid, produce gas-liquid kinetic energy and be converted to the hydraulic pressure energy, hydraulic pressure can be through digital starter gate valve 39, first reversal valve 45 enters the arrival end of force (forcing) pump 42, force (forcing) pump motor 40 drives force (forcing) pump 42 repressurizes, hydraulic oil after the supercharging injects left and right sides plunger case 7 through second reversal valve 43 along driving oil circuit 44 from the output of force (forcing) pump 42 ports of export, 8 working chamber, hydraulic pressure can promote left and right sides plunger 24A, 22A rises, and drive crossbeam 23, oil pumping polish rod 20 rises, and realizes the upstroke motion.
During down stroke, intelligence system instructs digital starter gate valve 39 to close, second reversal valve 43,45 commutations of first reversal valve, start force (forcing) pump motor 40, force (forcing) pump motor 42 drives force (forcing) pump 40 runnings, force (forcing) pump 40 is with left and right sides plunger case 7, hydraulic oil in 8 working chambers is extracted out, minimum Cheng Zaihe is drop-down with oil pumping polish rod 20 for oil pumper, oil pumping polish rod 20 drives crossbeam 23, by left and right sides plunger 24A, 22A is to plunger case 7,8 chamber inner fluids are exerted pressure, the hydraulic pressure that produces regeneration can enter force (forcing) pump 40 arrival ends, after the force (forcing) pump repressurize, export by force (forcing) pump 40 ports of export, again through second reversal valve 43, oil return circuit 42A sends gas-liquid accumulator 6 back to, makes oil circuit form closed loop, realizes that up-down stroke comes and goes shuttling movement.
Controlling force (forcing) pump motor 42 speed, equal to control the flow of force (forcing) pump 40, also is simultaneously the speed or the jig frequency of control oil pumping polish rod 20, realizes the purpose of stepless speed regulation.
Just in case the gas leakage of gas-liquid accumulator, system acquisition starts tonifying Qi motor 47 automatically to the air pressure dropping signal of digital pressure gauge 37, opens aeration valve 49, and air supplying pump 48 reaches setting value to the tonifying Qi of gas-liquid accumulator.
Attached: 12 type gas-liquid kinetic energy oil pumper technical data and computational charts
Learn from aforementioned calculation
Gas-liquid kinetic energy low-carbon (LC) oil pumper is more energy-conservation up to 81.1% than traditional beam pumping unit.
One 12 type oil pumper reduces power of motor 30.636kw, 30.636kw/h (degree) equals per hour to economize on electricity, 1 year economize on electricity 365 * 24=8760 * 30.636=268371.36=26.84 ten thousand (degree), equal to save standard coal 26.84 * 0.4=107.36 ton, reduce disposal of pollutants 26.84 * 0.272=730048 kilogram=73. tons of carbon simultaneously, 26.84 * 0.785=21069 kilogram=210.69 ton carbon dioxide
*
Save 18 tons of steel for every
Above-mentioned energy-saving and emission-reduction, the low-carbon environment-friendly achievement will be made major contribution for society.
26.84 ten thousand degree electricity [calculating (Hangzhou electricity price for industrial uses) by 1.8 yuan/degree] can be saved 48.312 ten thousand yuan/year the electricity charge, and the user is reduced cost, the strong impetus of increasing economic efficiency.
Simultaneously, the reform to the oil field oil production technology produces important meaning., be the arrival of oil production technology New Times.
*Annotate (according to expert statistics: every saving 1 degree (kilowatt hour) electricity, saved 0.4 kilogram of standard coal with regard to corresponding, reduce disposal of pollutants 0.272 kg of carbon simultaneously, 0.785 kilogram of carbon dioxide.)
100,120,140,160 4 kind of beam pumping unit and energy-saving gas-liquid kinetic energy oil pumper performance are relatively
Claims (9)
1. energy-saving gas-liquid kinetic energy oil pumper, comprise base, it is characterized in that: on described base, be connected with mobile base, be fixed with plunger case and gas-liquid accumulator on the described mobile base, being provided with the plunger case fixed mount and being positioned at the protective cover fixed mount of plunger case fixed mount top of described gas-liquid accumulator, be connected with down cable wind rope on the described plunger case fixed mount, be connected with cable wind rope on the described protective cover fixed mount, plunger end in the described plunger case is connected with crossbeam, be fixed with oil pumping polish rod on the described crossbeam, be connected with an end of the oil cylinder that rises and retires on described base, the other end of the described oil cylinder that rises and retires is connected on the cylinder bracket that rises and retires; Be connected with protective cover on the described guard shield fixed mount, be connected with an end of folding oil cylinder on the described protective cover, the other end of described folding oil cylinder is fixed on the folding cylinder bracket.
2. energy-saving gas-liquid kinetic energy oil pumper according to claim 1 is characterized in that: pulling force sensor is installed at described crossbeam middle part, and described pulling force sensor lower end is connected with oil pumping polish rod.
3. energy-saving gas-liquid kinetic energy oil pumper according to claim 1 and 2, it is characterized in that: described base comprises firm banking and activity adjustment seat, on firm banking, be provided with horizontal slide rail, on described horizontal slide rail, be provided with the activity adjustment seat, the bottom of shown activity adjustment seat is provided with the transverse groove that cooperates with horizontal slide rail, on described activity adjustment seat, be provided with and the horizontal vertical vertical slide rail of slide rail, described mobile base bottom is provided with the projection that cooperates with longitudinal rail, described mobile base and described activity adjustment seat are passed through bolt, one end of the described oil cylinder that rises and retires is fixed on the activity adjustment seat, the described cylinder bracket that rises and retires is positioned on the described gas-liquid accumulator, and described folding cylinder bracket is fixed on the gas-liquid accumulator.
4. energy-saving gas-liquid kinetic energy oil pumper according to claim 1 and 2, it is characterized in that: be connected with the transition oil cylinder on the described protective cover, one end of described transition oil cylinder is connected on the protective cover by the transition buffer plate, and the other end of described transition oil cylinder is fixed on the plunger case fixed mount.
5. energy-saving gas-liquid kinetic energy oil pumper according to claim 1 and 2 is characterized in that: described gas-liquid accumulator is connected with hydraulic oil behind the first 2/2-way valve, first one way valve, first reversal valve, force (forcing) pump and second reversal valve by pipeline successively and promotes plunger in the plunger case and finish the upstroke process and form and drive oil circuit; After the commutation of the first 2/2-way valve, plunger in the plunger case is in the down stroke process, after the pressurization of hydraulic oil by first reversal valve and force (forcing) pump, selecting return line to send hydraulic oil back to the gas-liquid accumulator by second reversal valve forms oil return circuit, drives oil circuit and oil return circuit and constitute closed loop.
6. energy-saving gas-liquid kinetic energy oil pumper according to claim 1 and 2 is characterized in that: the rated load of described force (forcing) pump is for carrying out the 18%-22% of the dynamic loading that plunger carried.
7. energy-saving gas-liquid kinetic energy oil pumper according to claim 1 and 2 is characterized in that: be connected with air supplying pump and aeration valve between described gas-liquid accumulator and the tonifying Qi motor.
8. energy-saving gas-liquid kinetic energy oil pumper according to claim 1 and 2, it is characterized in that: described plunger case comprises cylinder body and multi-stage sealed chamber, the multi-stage sealed indoor multi-stage sealed circle that is provided with is provided with pressure sensor between adjacent two sealing rings.
9. energy-saving gas-liquid kinetic energy oil pumper according to claim 8, it is characterized in that: described closed chamber is connected by bolt with cylinder body, junction at closed chamber and cylinder body is provided with sealing mat, the inner diameter of described closed chamber equals plunger outer diameter, multi-stage sealed circle is set in the described closed chamber, described safe back-up ring external diameter greater than plunger outer diameter less than cylinder diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206257806U CN201991493U (en) | 2010-09-07 | 2010-11-25 | Energy-saving gas liquid operated oil pumping unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020519346 | 2010-09-07 | ||
| CN201020519346.X | 2010-09-07 | ||
| CN2010206257806U CN201991493U (en) | 2010-09-07 | 2010-11-25 | Energy-saving gas liquid operated oil pumping unit |
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| CN201991493U true CN201991493U (en) | 2011-09-28 |
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| CN2010206257806U Expired - Fee Related CN201991493U (en) | 2010-09-07 | 2010-11-25 | Energy-saving gas liquid operated oil pumping unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192199A (en) * | 2010-09-07 | 2011-09-21 | 杨崇恩 | Power driven system and oil pumping unit applying same |
| CN103061716A (en) * | 2012-12-21 | 2013-04-24 | 无锡市科优液压设备制造有限公司 | Energy-saving hydraulic pumping unit |
| CN104265241A (en) * | 2014-07-02 | 2015-01-07 | 葛云锋 | Composite energy storage skid-mounted hydraulic pumping unit |
| CN112539155A (en) * | 2020-12-04 | 2021-03-23 | 中石化石油机械股份有限公司研究院 | Can monitor multiple sealed liquid drive formula hydrogen compressor |
-
2010
- 2010-11-25 CN CN2010206257806U patent/CN201991493U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192199A (en) * | 2010-09-07 | 2011-09-21 | 杨崇恩 | Power driven system and oil pumping unit applying same |
| CN103061716A (en) * | 2012-12-21 | 2013-04-24 | 无锡市科优液压设备制造有限公司 | Energy-saving hydraulic pumping unit |
| CN104265241A (en) * | 2014-07-02 | 2015-01-07 | 葛云锋 | Composite energy storage skid-mounted hydraulic pumping unit |
| CN112539155A (en) * | 2020-12-04 | 2021-03-23 | 中石化石油机械股份有限公司研究院 | Can monitor multiple sealed liquid drive formula hydrogen compressor |
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