CN203161681U - Energy storage type energy-saving hydraulic oil pumping unit - Google Patents
Energy storage type energy-saving hydraulic oil pumping unit Download PDFInfo
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- CN203161681U CN203161681U CN 201320086741 CN201320086741U CN203161681U CN 203161681 U CN203161681 U CN 203161681U CN 201320086741 CN201320086741 CN 201320086741 CN 201320086741 U CN201320086741 U CN 201320086741U CN 203161681 U CN203161681 U CN 203161681U
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Abstract
The utility model relates to an energy storage type energy-saving hydraulic oil pumping unit. The energy storage type energy-saving hydraulic oil pumping unit comprises a motor, a hydraulic pump driven by the motor, a connecting device, an executing unit, a pressure forming and losing unit, an energy accumulator and a position detecting device, wherein the executing unit comprises a loading unit and an energy storage unit; the hydraulic pump feeds oil to the loading unit and the energy storage unit in a single way; the energy storage device stores energy or release energy for the executing unit; and the pressure forming and losing unit is used for enabling the loading unit and the energy storage unit to form a pressure or enable the loading unit to lose the pressure. The acting area of the executing unit when the connecting device rises is greater than that of the executing unit when the connecting device falls down. The energy storage type energy-saving hydraulic oil pumping unit realizes efficient recycling of the energy and greatly saves energy consumption of the motor which drives the hydraulic pump.
Description
Technical field
The utility model relates to a kind of accumulating type energy-conserving hydraulic pumping unit.
Background technique
Various countries adopt traditional beam pumping unit recover petroleum usually at present.Traditional beam pumping unit is poor at energy-saving effect, and transmission efficiency is low, can't better realize energy-conservation; Because volume is big, weight is big, causes being inconvenient to transport, and maintenance and accent ginseng are installed; The whole input cost height of equipment.Beam pumping unit can't well be realized pumping unit in oil recovery process, and effective recovery of the gravitational potential energy of sucker rod etc. can not reach the effect of recovered energy in the pumping unit decline process.
The model utility content
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of accumulating type energy-conserving hydraulic pumping unit is provided, save the energy consumption of motor.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of accumulating type energy-conserving hydraulic pumping unit comprises: motor; By described motor-driven oil hydraulic pump; For the connection set that is connected with the sucker rod of pumping unit; Drive the performance element that connection set rises and descends; Described performance element comprises loading unit and Storage Unit, and described oil hydraulic pump is to loading unit and the unidirectional oil-feed of Storage Unit; Be triggered to set the position detecting device of oil pumping stroke; The accumulator that is connected with the Storage Unit of performance element; Described accumulator carries out accumulation of energy or exoergic to performance element; Build and press the decompression unit, be used for making loading unit and Storage Unit while build-up pressure or make loading unit lose pressure.
Described building pressed the decompression unit it got electric or dead electricity by the SC sigmal control of position detecting device.
Described performance element is the gross area effect of loading unit and Storage Unit when connection set rises, and described performance element is the area effect of Storage Unit when connection set descends; The area that the area that described performance element works when connection set rises works when connection set descends greater than performance element.
Further, original state is built when pressing decompression unit dead electricity, the hydraulic oil of oil hydraulic pump output is unidirectional loading unit and the Storage Unit of entering simultaneously, loading unit and Storage Unit be build-up pressure simultaneously, the area of loading unit and Storage Unit works simultaneously, and loading unit and Storage Unit drive connection set simultaneously and rise.Described building presses the decompression unit to get that loading unit loses pressure when electric, and only have the area of Storage Unit to work this moment, and Storage Unit produces accumulation of energy fluid, and accumulation of energy fluid enters the accumulator accumulation of energy, and Storage Unit drives connection set and descends.Press the decompression unit accumulation of energy fluid that accumulator holds during dead electricity again to enter Storage Unit building described in following one-period, Storage Unit drives connection set and rises, and the hydraulic oil of oil hydraulic pump output enters loading unit and drives connection set and rise.
Further, described building presses the decompression unit to comprise: second one-way valve of building the unidirectional conducting function of first one-way valve, hydraulic oil of pressing decompression control valve, the unidirectional conducting function of hydraulic oil that loading unit is played protective function; Described loading unit is more than one load cylinder, and described Storage Unit is more than one accumulation of energy oil cylinder; Described position detecting device comprises bottom switch and top switch; Described building pressed the decompression control valve to get the electric loading unit that makes to lose pressure when described top switch triggered, and described building pressed decompression control valve dead electricity to make loading unit and Storage Unit build-up pressure simultaneously when described bottom switch triggered.
Described loading unit can be a plurality of coefficient load cylinders, and described Storage Unit can be a plurality of coefficient accumulation of energy oil cylinders.
The oil outlet of described oil hydraulic pump connects the import of first one-way valve, and the outlet of described first one-way valve communicates with the oil pocket of load cylinder; On the described oil circuit of building between the oil pocket of pressing the decompression control valve to be installed in the outlet of first one-way valve and load cylinder; Described build press the decompression control valve when electric the oil pocket emptying of described load cylinder lose pressure.The import of described second one-way valve connects the outlet of first one-way valve, and the outlet of described second one-way valve communicates with the oil pocket of accumulation of energy oil cylinder, and the oil pocket of described accumulation of energy oil cylinder communicates with the import of accumulator.
Further, describedly build that to press the decompression control valve be electromagnetic relief valve.
Further, build when initial and press decompression control valve dead electricity to build pressure, the hydraulic oil that oil hydraulic pump provides drives the loading piston of load cylinder through first one-way valve, the hydraulic oil that oil hydraulic pump provides through first one-way valve and second one-way valve to the accumulator oil-feed, the hydraulic oil that oil hydraulic pump provides drives the energy storage piston of accumulation of energy oil cylinder through first one-way valve and second one-way valve, loading unit and Storage Unit be build-up pressure simultaneously, loading piston and energy storage piston rises, the loading piston rod that is connected with the loading piston rises, the energy storage piston bar that is connected with energy storage piston rises, and loads piston rod, the energy storage piston bar drives connection set and rises.
Top switch triggers in the uphill process, build and press the decompression control valve to get, the oil pocket emptying of load cylinder, load piston and lose pressure, only energy storage piston produces pressure, under first one-way valve, the unidirectional effect that ends of second one-way valve, when energy storage piston descends the accumulation of energy fluid that produces is all entered the accumulator accumulation of energy, loading piston and energy storage piston descends, the energy storage piston bar that the loading piston rod that is connected with the loading piston descends, is connected with energy storage piston descends, and loads piston rod, the decline of energy storage piston bar drive connection set.
Bottom switch triggers in the decline process, build and press decompression control valve dead electricity, the hydraulic oil of oil hydraulic pump output drives through first one-way valve and loads the piston rising, accumulator exports accumulation of energy fluid the oil pocket of accumulation of energy oil cylinder to and then drives energy storage piston and rises simultaneously, drive connection set and rise under the acting in conjunction that loads piston and energy storage piston, top switch triggers and then builds and presses the decompression control valve must establish periodically action of beginning by cable in the uphill process.
Further, described load cylinder is push type oil cylinder or tension type oil cylinder, described accumulation of energy oil cylinder is push type oil cylinder or tension type oil cylinder, described load cylinder is in parallel with the accumulation of energy oil cylinder or be connected in series, the mode that described load cylinder and accumulation of energy oil cylinder are connected in parallel is: be arranged side by side about described load cylinder and accumulation of energy oil cylinder, the loading piston rod of described load cylinder, the energy storage piston bar of accumulation of energy oil cylinder are fixedlyed connected with connection set simultaneously.
The mode that described load cylinder and hydraulic jack are connected in parallel is: described load cylinder and accumulation of energy oil cylinder stacked on top arrange, described accumulation of energy oil cylinder is positioned at the load cylinder top, the energy storage piston bar of described accumulation of energy oil cylinder is connected with the loading piston of load cylinder, and the loading piston rod of described load cylinder is connected with connection set.
Further, described pumping unit has second relief valve that Storage Unit and accumulator is played protective function, in the oil pocket that described second relief valve is installed in the accumulation of energy oil cylinder and the oil circuit that accumulator is communicated with; Prevent that but Storage Unit from inhaling sky or shutdown of pumping machine manual tune and discharging first one-way throttle valve of accumulation of energy pressure, in the oil pocket that described first one-way throttle valve is installed in the accumulation of energy oil cylinder and the oil circuit that accumulator is communicated with; Be used for to regulate the rate of descent of connection set or the throttle valve that uphill process is used for regulating accumulator accumulation of energy release rate in the decline process, in the oil pocket that described throttle valve is installed in the accumulation of energy oil cylinder and the oil circuit that accumulator is communicated with; Prevent that but loading unit from inhaling second one-way throttle valve of sky or shutdown of pumping machine manual tune, described second one-way throttle valve is installed in first one-way valve and the oil circuit that the oil pocket of load cylinder is communicated with.
Further, described oil hydraulic pump is hydraulic pressure output electronics ratio variable flow unit, the electronics Proportional valve of control fluid changes in flow rate is installed in Storage Unit and the oil circuit that accumulator is communicated with, and the positioning control of loading unit and Storage Unit is the magnetic scale sensor of analog amount; It is stepless adjustable that hydraulic pressure electronics ratio variable flow unit changes hydraulic fluid flow rate according to the output that is in proportion of electrical signal.
Further, it is the accumulation of energy oil hydraulic motor that described loading unit is used oil hydraulic motor, described Storage Unit for loading, described loading oil hydraulic motor and accumulation of energy oil hydraulic motor tandem drive hydraulic wireline winch, and hydraulic wireline winch is connected with connection set.
Further, described loading unit is made up of last load cylinder, following load cylinder, described Storage Unit is made up of last accumulation of energy oil cylinder, following accumulation of energy oil cylinder, last load cylinder, following load cylinder are arranged on the adpting flange of well mouth of oil well tree, last accumulation of energy oil cylinder, down the accumulation of energy oil cylinder is arranged on the adpting flange of well mouth of oil well tree, last load cylinder, down load cylinder, go up the accumulation of energy oil cylinder, following accumulation of energy oil cylinder piston rod is separately fixedlyed connected with connection set.
The beneficial effects of the utility model are: the area that the area that performance element of the present utility model works when connection set rises works when connection set descends greater than performance element.Just establish when pressing decompression unit dead electricity, the hydraulic oil of oil hydraulic pump output is unidirectional loading unit and the Storage Unit of entering simultaneously, and the area of loading unit and Storage Unit works simultaneously, and loading unit and Storage Unit drive connection set simultaneously and rise.Build and press the decompression unit to get when electric, the loading unit of performance element loses pressure, and only have the area of Storage Unit to work this moment, and Storage Unit produces accumulation of energy fluid, and accumulation of energy fluid enters the accumulator accumulation of energy, and Storage Unit drives connection set and descends.Press the decompression unit accumulation of energy fluid that accumulator holds during dead electricity again to enter Storage Unit building described in following one-period, Storage Unit drives connection set and rises, and the hydraulic oil of oil hydraulic pump output enters loading unit and drives connection set and rise.When rising in following one-period, by driving the power that energy storage piston rises with accumulator, oil hydraulic pump only need consume less energy consumption also can make connection set rise, thereby, saved the energy consumption that drives the motor of oil hydraulic pump greatly.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is embodiment's one of the present utility model catenation principle figure;
Fig. 2 is embodiment's two of the present utility model catenation principle figure;
Fig. 3 is embodiment's three of the present utility model catenation principle figure;
Fig. 4 is embodiment's four of the present utility model catenation principle figure;
Fig. 5 is embodiment's five of the present utility model catenation principle figure;
Fig. 6 is embodiment's six of the present utility model catenation principle figure;
Fig. 7 is the fitting arrangement that the utility model is installed in the well head tree;
Wherein: 1, motor, 2, oil hydraulic pump, 3.1, electromagnetic relief valve, 3.2, second relief valve, 4, accumulator, 5.1, first one-way throttle valve, 5.2, second one-way throttle valve, 6.1, first one-way valve, 6.2, second one-way valve, 7, throttle valve, 8, performance element, 811, load piston, 812, load piston rod, 821, energy storage piston, 822, the energy storage piston bar, 9.1, top switch, 9.2, bottom switch, 10. connection set, 8.1, load and use oil hydraulic motor, 8.2, the accumulation of energy oil hydraulic motor, 211, last load cylinder, 212, following load cylinder, 213, last accumulation of energy oil cylinder, 214, following accumulation of energy oil cylinder, 30, the well head tree.
Embodiment
By reference to the accompanying drawings the utility model is further described now.The schematic representation that these accompanying drawings are simplification only illustrates basic structure of the present utility model in a schematic way, so it only shows the formation relevant with the utility model.
Embodiment one: as Fig. 1, it is that switch controlled and performance element are the hydraulic pumping unit system of push type oil hydraulic cylinder combining form in parallel that Fig. 1 shows power unit of the present utility model.
As shown in Figure 1, a kind of accumulating type energy-conserving hydraulic pumping unit comprises: motor 1; Oil hydraulic pump 2 by motor 1 driving; For the connection set 10 that is connected with the sucker rod of pumping unit; Drive the performance element 8 that connection set 10 rises and descends; Performance element 8 comprises loading unit and Storage Unit, 2 pairs of loading units of oil hydraulic pump and the unidirectional oil-feed of Storage Unit; Be triggered to set the position detecting device of oil pumping stroke; The accumulator 4 that is connected with the Storage Unit of performance element 8; 4 pairs of performance elements of accumulator 8 carry out accumulation of energy or exoergic; Build and press the decompression unit, be used for making loading unit and Storage Unit while build-up pressure or make loading unit lose pressure; Build and press the decompression unit it gets electric decompression or dead electricity is built pressure by the SC sigmal control of position detecting device.Build and press the decompression unit to get to make loading unit lose pressure when electric, described build to press make loading unit and Storage Unit build-up pressure simultaneously when exerting pressure the unit dead electricity.
Build and press the decompression unit to comprise: loading unit is played building of protective function press decompression control valve, first one-way valve 6.1 of the unidirectional conducting function of hydraulic oil, second one-way valve 6.2 of the unidirectional conducting function of hydraulic oil.Loading unit is more than one load cylinder, and Storage Unit is more than one accumulation of energy oil cylinder.Position detecting device comprises bottom switch 9.2 and top switch 9.1.Build when top switch 9.1 triggers that to press the decompression control valve to get electric, when bottom switch 9.2 triggers, build and press decompression control valve dead electricity.Loading unit can be a plurality of load cylinders, and Storage Unit can be a plurality of accumulation of energy oil cylinders.Building and pressing the decompression control valve is the valve of electromagnetic relief valve 3.1 or other similar functions, realizes as combination or the electromagnetic proportional valve of solenoid directional control valve and pressure valve.Pumping unit comprises the hydraulic oil container to performance element 8 fuel feeding.
The oil outlet of oil hydraulic pump 2 connects the import of first one-way valve 6.1, and the outlet of first one-way valve 6.1 communicates with the oil pocket of load cylinder.Build on the oil circuit between the oil pocket of pressing the decompression control valve to be installed in the outlet of first one-way valve 6.1 and load cylinder.Build press the decompression control valve the oil pocket emptying decompression of load cylinder when electric.The import of second one-way valve 6.2 connects the outlet of first one-way valve 6.1, and the outlet of second one-way valve 6.2 communicates with the oil pocket of accumulation of energy oil cylinder, and the oil pocket of accumulation of energy oil cylinder communicates with the import of accumulator 4.
As shown in Figure 1, performance element is push type in parallel: load cylinder is the push type oil cylinder, the accumulation of energy oil cylinder is the push type oil cylinder, load cylinder and accumulation of energy oil cylinder are connected in parallel, be arranged side by side about load cylinder and accumulation of energy oil cylinder, the loading piston rod 812 of load cylinder is positioned at and loads piston 811 tops, the energy storage piston bar 822 of accumulation of energy oil cylinder is positioned at the top of energy storage piston 821, loading piston rod 812, energy storage piston bar 822 tops are connected and fixed by waling stripe, fixedly connected with connection set 10 in the waling stripe middle part.
The loading piston rod 812 of load cylinder is positioned at and loads piston 811 tops, the energy storage piston bar 822 of accumulation of energy oil cylinder is positioned at the top of energy storage piston 821, this scheme can reduce the setting height(from bottom) of equipment, have only and in use load piston rod 812 and energy storage piston bar 822 just stretches out, installation and maintenance highly reduce like this, the convenient use.
Pumping unit had in the oil pocket that second relief valve, 3.2, the second relief valves 3.2 that Storage Unit and accumulator are played protective function are installed in the accumulation of energy oil cylinder and the oil circuit that accumulator 4 is communicated with.But pumping unit has and prevents in the oil pocket that first one-way throttle valve, 5.1, the first one-way throttle valves 5.1 that Storage Unit is inhaled sky or shutdown of pumping machine manual tune and discharged accumulation of energy pressure are installed in the accumulation of energy oil cylinder and the oil circuit that accumulator 4 is communicated with.Pumping unit has in the decline process and to be used for regulating the rate of descent of connection set or the throttle valve 7 that uphill process is used for regulating accumulator 4 accumulation of energy release rate, in the oil pocket that throttle valve 7 is installed in the accumulation of energy oil cylinder and the oil circuit that accumulator 4 is communicated with.
Pumping unit has and prevents that but loading unit from inhaling second one-way throttle valve, 5.2, the second one-way throttle valves 5.2 of sky or shutdown of pumping machine manual tune and being installed in first one-way valve 6.1 and the oil circuit that the oil pocket of load cylinder is communicated with.
The performance element 8 of loading unit and Storage Unit combination is installed on the cylinder bracket, and loading piston rod 812, energy storage piston bar 822 link together by the sucker rod of connection set 10 with underwell pump, pumps to drive sucker rod.Preferably, load piston rod 812,, energy storage piston bar 822 is arranged on the parallel lines with the sucker rod of underwell pump, thereby make the three not have conllinear prejudicially all the time, guaranteed that the underwell pump sucker rod can work long hours, prolong oil pumping system working life, and reduced weight and the installation and maintenance height of equipment.
Position detecting device is installed on the cylinder bracket, is used for detect loading piston rod 812,, position or the position of connection set or the position of sucker rod of energy storage piston bar 822.
Position detecting device is preferably displacement transducer, it can be Boolean value output sensor, two switches such as the upper and lower part that is separately positioned on cylinder bracket: top switch 9.1 and bottom switch 9.2, top switch 9.1 and bottom switch 9.2 can adopt near switch, top switch 9.1 and bottom switch 9.2 can be normal close type, also can be open type, distance has therebetween determined the oil pumping stroke of pumping unit.Position detecting device also can be analog sensor, thereby can regulate stroke in the arbitrary position in the maximum stroke scope.
The oil pumping that pumps of the sucker rod of pumping unit, an one work cycle is as follows:
When initial, the lowermost end that loading piston rod 812 and energy storage piston bar 822 are positioned at its stroke is lower dead center, builds and presses the decompression control valve to get electric decompression, and loading piston rod 812 and energy storage piston bar 822 are static, and motor 1 starts the normal original-pack state that enters.
Build and press decompression control valve dead electricity to build pressure, the hydraulic oil that oil hydraulic pump 2 provides drives the loading piston 811 of load cylinder through first one-way valve 6.1, the hydraulic oil that oil hydraulic pump 2 provides through first one-way valve 6.1 and second one-way valve 6.2 to accumulator 4 oil-feeds, the hydraulic oil that oil hydraulic pump 2 provides drives the energy storage piston 821 of accumulation of energy oil cylinder through first one-way valve 6.1 and second one-way valve 6.2, loading unit and Storage Unit be build-up pressure simultaneously, load piston 811 and energy storage piston 821 risings, the loading piston rod 812 that is connected with loading piston 811 rises, the energy storage piston bar 822 that is connected with energy storage piston 811 rises, and loads piston rod 812, energy storage piston bar 822 drives connection set 10 and rises.Connection set 10 drives sucker rods and rises, and has passed through bottom switch 9.2 in the sucker rod uphill process but does not trigger the bottom switch 9.2 triggering top switch 9.1 when arriving the top that rises then.
Top switch 9.1 triggers in the uphill process, build and press the decompression control valve to get, the oil pocket emptying of load cylinder, load piston 811 and lose pressure, only energy storage piston 821 produces pressure, at first one-way valve, under the unidirectional effect that ends of second one-way valve, when energy storage piston 821 descends the accumulation of energy fluid that produces is all entered accumulator 4 accumulation of energys, held into accumulator 4 through energy after throttle valve 7 speed governing, load piston 811 and energy storage piston 821 declines, the loading piston rod 812 that is connected with loading piston 811 descends, the energy storage piston bar 822 that is connected with energy storage piston 811 descends, and loads piston rod 812, energy storage piston bar 822 drives connection set 10 and descends.Second one-way valve 6.2 has ended hydraulic oil and has entered loading unit, has guaranteed accumulator 4 accumulation of energys, triggers bottom switch 9.2 when sucker rod descends the arrival bottom then.
Bottom switch 9.2 triggers in the decline process, build and press decompression control valve dead electricity, the hydraulic oil of oil hydraulic pump 2 outputs drives through first one-way valve 6.1 and loads piston 811 risings, accumulator 4 has held to enough energy simultaneously, regulating back accumulator 4 through throttle valve 7 exports accumulation of energy fluid the oil pocket of accumulation of energy oil cylinder to and then drives energy storage piston 821 risings, drive connection set 10 and rise under the acting in conjunction that loads piston 811 and energy storage piston 821, top switch 9.1 triggers and then builds and presses the decompression control valve must establish periodically action of beginning by cable in the uphill process.
Press the decompression control valve must not electricity the time when building, load piston 811 and energy storage piston 821 build-up pressure all respectively, then load piston rod 812 and energy storage piston bar 822 and drive the sucker rods oil pumping of rising.Press the decompression control valve to get when electric when building, load piston 811 decompressions, the decline weight-driven has only energy storage piston 821 areas, then sets up accumulation of energy pressure, hold into accumulator 4 after 7 throttlings of accumulation of energy pressure process throttle valve, then load piston rod 812 and the 822 drive sucker rods declines of energy storage piston bar.The energy that holds in next cycle will be for the power that drives next rising cycle energy storage piston 821, when therefore rising in following one-period, by driving the power that energy storage piston rises with accumulator 4, oil hydraulic pump 2 only need consume less energy consumption also can make connection set 10 rise, thereby, saved the energy consumption that drives the motor 1 of oil hydraulic pump 2 greatly.
Embodiment two: as Fig. 2, Fig. 2 shows that performance element is the hydraulic pumping unit system of tension type oil hydraulic cylinder combining form in parallel in the utility model.
Embodiment two is with embodiment one difference: load cylinder is the tension type oil cylinder, the accumulation of energy oil cylinder is the tension type oil cylinder, load cylinder and accumulation of energy oil cylinder are connected in parallel, be arranged side by side about load cylinder and accumulation of energy oil cylinder, the loading piston rod 812 of load cylinder is positioned at and loads piston 811 belows, the energy storage piston bar 822 of accumulation of energy oil cylinder is positioned at the below of energy storage piston 821, loading piston rod 812, energy storage piston bar 822 bottoms are connected and fixed by waling stripe, fixedly connected with connection set 10 in the waling stripe middle part.
Embodiment three: as Fig. 3, Fig. 3 shows performance element in the utility model and is the hydraulic pumping unit system of series connection tension type oil hydraulic cylinder combining form.
Embodiment three is with embodiment one difference: load cylinder is the tension type oil cylinder, the accumulation of energy oil cylinder is the tension type oil cylinder, load cylinder and accumulation of energy oil cylinder are connected in series, load cylinder and accumulation of energy oil cylinder stacked on top arrange, the accumulation of energy oil cylinder is positioned at the top of load cylinder, load piston 811 and be connected in series with loading piston rod 812, energy storage piston 821 is connected in series with energy storage piston bar 822.The energy storage piston bar 822 of accumulation of energy oil cylinder is connected in series with the loading piston 811 of load cylinder, and the loading piston rod 812 of load cylinder is connected with connection set 10.
Embodiment four: as Fig. 4, Fig. 4 shows that performance element is the hydraulic pumping unit system of thrust pulley type oil hydraulic cylinder combining form in parallel in the utility model.
Embodiment four is with embodiment one difference: load cylinder is the push type oil cylinder, the accumulation of energy oil cylinder is the push type oil cylinder, load cylinder and accumulation of energy oil cylinder are connected in parallel, be arranged side by side about load cylinder and accumulation of energy oil cylinder, the loading piston rod 812 of load cylinder is positioned at and loads piston 811 tops, the energy storage piston bar 822 of accumulation of energy oil cylinder is positioned at the top of energy storage piston 821, load piston rod 812 tops and be connected with first pulley, energy storage piston bar 822 tops are connected with second pulley, first pulley is connected by belt with second pulley, fixedlys connected with connection set 10 in the middle part of the belt that first pulley is connected with second pulley.Thrust pulley type oil cylinder stroke is half of working stroke, has reduced the height of pumping unit more.
Embodiment five: as Fig. 5, it is that proportional control type and performance element are the hydraulic pumping unit system of push type oil hydraulic cylinder combining form in parallel that Fig. 5 shows power unit of the present utility model.
Embodiment five is with embodiment one difference: oil hydraulic pump 2 is hydraulic pressure output electronics ratio variable flow unit, the electronics Proportional valve of control fluid changes in flow rate is installed in Storage Unit and the oil circuit that accumulator is communicated with, and the positioning control of loading unit and Storage Unit is the magnetic scale sensor of analog amount; It is stepless adjustable that hydraulic pressure electronics ratio variable flow unit changes hydraulic fluid flow rate according to the output that is in proportion of electrical signal.
Hydraulic pressure output electronics ratio variable flow unit is electronics dosing pump or the unit be made up of pump and electronics Proportional valve, finally can export electronics ratio variable flow.Utilized the electronics proportional variable pump, the variation of the pivot angle of the control pump that is in proportion that can be by electrical signal, thereby change pump delivery, the changes in flow rate scope that causes pump output can be from 0 stepless adjustable in the peak rate of flow scope, thereby it is stepless adjustable to control the whole pumping unit rate of climb.The accumulator accumulation of energy and release energy control the variation of flow for the electronics Proportional valve, be preferably the electronics proportional flow control valve and flow to current plate and be used in combination.Used the solenoid-operated proportional Flow valve, the control changes in flow rate that is in proportion that can be by electrical signal can be stepless adjustable in the peak rate of flow scope from 0, thereby it is stepless adjustable to control whole pumping unit rate of descent, energy also has been stored into accumulator, in uphill process, by the current plate that flows to that increases, the energy release rate that proportional flow control valve also can the proportional control accumulator.The positioning control of performance element is the magnetic scale sensor of analog amount, can proportional output electrical signal, judge the displacement amount of oil cylinder accurately, thus can the proportion of utilization pump and Proportional valve control position, speed, the acceleration of pumping unit accurately.Can the usage ratio technology, the control pumping unit is according to the control curvilinear motion of optimum, and velocity curve is adjustable arbitrarily, the convenient use.The proportional pressure that is converted to hydraulic oil of the pulling force of pumping unit.Increase the pressure transducer of analog amount, can proportional feedback control electric current, control the pulling force size of entire equipment, judge the disconnected bar of pumping unit and stuck fault.Also can the control of passing ratio technology adjust the unfreezing of motor pattern wriggling.This proportional technique can directly be exported the indicator diagram that the electrical signal of analog amount is converted to equipment through controller in addition.Also network transmission device be can directly increase, telecontrol accent parameter and data retransmission function directly realized.
Embodiment six: as shown in Figure 6, Fig. 5 shows performance element and adopts the fluid motor-driven hydraulic wireline winch to promote the hydraulic pumping unit system of oil pumping.
Embodiment six is with embodiment one difference: loading unit is for loading with oil hydraulic motor 8.1, Storage Unit is accumulation of energy oil hydraulic motor 8.2, load with oil hydraulic motor 8.1 and accumulation of energy oil hydraulic motor 8.2 tandem drive hydraulic wireline winchs, hydraulic wireline winch is connected with connection set 10.
Hydraulic wireline winch drives connected connection set 10 and promotes by belt or wire rope, and connection set 10 drives sucker rod and promotes oil pumping.In first uphill process, oil hydraulic pump drives simultaneously to load with oil hydraulic motor and accumulation of energy and promotes oil pumping with oil hydraulic motor and then driving hydraulic wireline winch.Beginning oppositely descends after triggering upper stroke switch, in sucker rod decline process, the potential energy that descends promotes hydraulic wireline winch and loads with oil hydraulic motor, accumulation of energy oil hydraulic motor counterrotating, produce pressure oil, load this moment with the hydraulic oil of oil hydraulic motor and press the overflow of decompression control valve by building, so all energy are all through accumulation of energy oil hydraulic motor accumulation of energy.Beginning is oppositely risen after triggering lower stroke switch, in the sucker rod uphill process, the energy that provides uses the oil hydraulic motor acting in conjunction to promote sucker rod for the loading that the pressure oil that provides through oil hydraulic pump drives with oil hydraulic motor with through the accumulation of energy that the pressure oil that accumulator provides drives.In the next cycle of motion, the energy that descends has held into accumulator, accumulator discharges accumulation of energy and the rising of oil hydraulic pump acting in conjunction driving sucker rod again in next uphill process, periodically motion so repeatedly, the effect of the recovered energy recycling that the equipment that reached is real further reduces the energy consumption of oil hydraulic pump.
Embodiment seven: as shown in Figure 7, Fig. 7 is directly installed on the layout plan of well head tree for performance element of the present utility model.Compare with embodiment one, difference is: loading unit is made up of last load cylinder 211, following load cylinder 212, Storage Unit is made up of last accumulation of energy oil cylinder 221, following accumulation of energy oil cylinder 222, last load cylinder 211, following load cylinder 212 are arranged on the adpting flange of well mouth of oil well tree 30, last accumulation of energy oil cylinder 221, down accumulation of energy oil cylinder 222 is arranged on the adpting flange of well mouth of oil well tree 30, last load cylinder 211, down load cylinder 212, go up accumulation of energy oil cylinder 221, following accumulation of energy oil cylinder 222 piston rod is separately fixedlyed connected with connection set.
In sum, accumulating type energy-conserving hydraulic pumping unit of the present utility model can be recovered to the gravitational potential energy of pumping unit at the sucker rod of decline process etc. in the accumulator, discharges in next pumping unit uphill process, and the energy that has reached real meaning reclaims.
The potential energy that the utility model makes the sucker rod that links to each other with connection set descend and produces is stored the energy that rises in order to rear driving energy storage piston bar by accumulator, thereby reclaimed energy and reduced power consumption, and can use the little motor of power, also reduce the weight of pumping unit equipment in addition, reduced cost.
Same power unit of the present utility model can provide power for the performance element of multiple installation form, and the performance element of multiple installation form can use in various field use operating modes.Parameter for different loads, stroke, jig frequency is all applicable, and in addition for applied environment: different well head tree, different weather and environmental factor are all applicable.Performance element can be installed on the well head tree, does not need the cement ground.Also can consider application request, allow performance element be installed on the other basis of well head tree.Therefore have versatile and flexible, characteristic of strong applicability.For the desert, the sea, greater coasting area, beach, the application of extreme terrains such as mountain area has the advantage that can not be substituted.
Performance element is the gross area effect of two or more oil cylinders in lifting process, be half area or the more small size effect of all oil cylinder gross areas in the decline process, thereby pressure maximum when having improved hydraulic pumping unit and in the decline process, holding into energy, and be the gross area effect of two cylinders or a plurality of cylinders in the rising releasing course, allow promote needed pressure minimum.Thereby accomplished high-voltage energy-storage, low pressure releases energy, and effectively raises the operating pressure differential of accumulator, has reached the most efficient and accumulation of energy maximum capacity.Also allow whole hydraulic pumping unit reach high efficiency energy storage truly.
Be enlightenment with above-mentioned foundation desirable embodiment of the present utility model, by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to the claim scope.
Claims (10)
1. accumulating type energy-conserving hydraulic pumping unit is characterized in that: comprising:
Motor (1);
Oil hydraulic pump (2) by described motor (1) driving;
For the connection set (10) that is connected with the sucker rod of pumping unit;
Drive the performance element (8) that connection set (10) rises and descends; Described performance element (8) comprises loading unit and Storage Unit, and described oil hydraulic pump (2) is to loading unit and the unidirectional oil-feed of Storage Unit;
Be triggered to set the position detecting device of oil pumping stroke;
The accumulator (4) that is connected with the Storage Unit of performance element (8); Described accumulator (4) carries out accumulation of energy or exoergic to performance element (8);
Build and press the decompression unit, be used for making loading unit and Storage Unit while build-up pressure or make loading unit lose pressure;
Described building pressed the decompression unit it got electric or dead electricity by the SC sigmal control of position detecting device;
Described performance element (8) is the gross area effect of loading unit and Storage Unit when connection set (10) rises, and described performance element (8) is the area effect of Storage Unit when connection set (10) descends; The area that the area that described performance element (8) works when connection set (10) rises works when connection set (10) descends greater than performance element (8).
2. a kind of accumulating type energy-conserving hydraulic pumping unit according to claim 1, it is characterized in that: original state is built when pressing decompression unit dead electricity, the hydraulic oil of oil hydraulic pump (2) output is unidirectional loading unit and the Storage Unit of entering simultaneously, loading unit and Storage Unit be build-up pressure simultaneously, the area of loading unit and Storage Unit works simultaneously, and loading unit and Storage Unit drive connection set (10) simultaneously and rise;
Described building presses the decompression unit to get that loading unit loses pressure when electric, and only have the area of Storage Unit to work this moment, and Storage Unit produces accumulation of energy fluid, and accumulation of energy fluid enters accumulator (4) accumulation of energy, and Storage Unit drives connection set (10) and descends;
Press the decompression unit accumulation of energy fluid that accumulator (4) holds during dead electricity again to enter Storage Unit building described in following one-period, Storage Unit drives connection set (10) and rises, and the hydraulic oil of oil hydraulic pump (2) output enters loading unit and drives connection set (10) rising.
3. a kind of accumulating type energy-conserving hydraulic pumping unit according to claim 1 is characterized in that: described building presses the decompression unit to comprise: loading unit is played building of protective function press decompression control valve, first one-way valve (6.1) of the unidirectional conducting function of hydraulic oil, second one-way valve (6.2) of the unidirectional conducting function of hydraulic oil;
Described loading unit is more than one load cylinder, and described Storage Unit is more than one accumulation of energy oil cylinder;
Described position detecting device comprises bottom switch (9.2) and top switch (9.1); Described building pressed the decompression control valve to get the electric loading unit that makes to lose pressure when described top switch (9.1) triggered, and described building pressed decompression control valve dead electricity to make loading unit and Storage Unit build-up pressure simultaneously when described bottom switch (9.2) triggered;
The oil outlet of described oil hydraulic pump (2) connects the import of first one-way valve (6.1), and the outlet of described first one-way valve (6.1) communicates with the oil pocket of load cylinder; On the described oil circuit of building between the oil pocket of pressing the decompression control valve to be installed in the outlet of first one-way valve (6.1) and load cylinder; Described build press the decompression control valve when electric the oil pocket emptying of described load cylinder lose pressure;
The import of described second one-way valve (6.2) connects the outlet of first one-way valve (6.1), and the outlet of described second one-way valve (6.2) communicates with the oil pocket of accumulation of energy oil cylinder, and the oil pocket of described accumulation of energy oil cylinder communicates with the import of accumulator (4).
4. a kind of accumulating type energy-conserving hydraulic pumping unit according to claim 3 is characterized in that: describedly build that to press the decompression control valve be electromagnetic relief valve (3.1).
5. a kind of accumulating type energy-conserving hydraulic pumping unit according to claim 3, it is characterized in that: build when initial and press decompression control valve dead electricity to build pressure, the hydraulic oil that oil hydraulic pump (2) provides drives the loading piston (811) of load cylinder through first one-way valve (6.1), the hydraulic oil that oil hydraulic pump (2) provides is given accumulator (4) oil-feed through first one-way valve (6.1) and second one-way valve (6.2), the hydraulic oil that oil hydraulic pump (2) provides drives the energy storage piston (821) of accumulation of energy oil cylinder through first one-way valve (6.1) and second one-way valve (6.2), loading unit and Storage Unit be build-up pressure simultaneously, loading piston (811) and energy storage piston (821) rises, the loading piston rod (812) that is connected with loading piston (811) rises, the energy storage piston bar (822) that is connected with energy storage piston (821) rises, and loads piston rod (812), energy storage piston bar (821) drives connection set (10) and rises;
Top switch in the uphill process (9.1) triggers, build and press the decompression control valve to get, the oil pocket emptying of load cylinder, load piston (811) and lose pressure, only energy storage piston (821) produces pressure, in first one-way valve (6.1), under the unidirectional effect that ends of second one-way valve (6.2), when energy storage piston (821) descends the accumulation of energy fluid that produces is all entered accumulator (4) accumulation of energy, loading piston (811) and energy storage piston (821) descends, the loading piston rod (812) that is connected with loading piston (811) descends, the energy storage piston bar (822) that is connected with energy storage piston (821) descends, and loads piston rod (812), energy storage piston bar (822) drives connection set (10) and descends;
Bottom switch in the decline process (9.2) triggers, build and press decompression control valve dead electricity, the hydraulic oil of oil hydraulic pump (2) output drives through first one-way valve (6.1) and loads piston (811) rising, accumulator (4) exports accumulation of energy fluid the oil pocket of accumulation of energy oil cylinder to and then drives energy storage piston (821) and rises simultaneously, drive connection set (10) and rise under the acting in conjunction that loads piston (811) and energy storage piston (821), top switch in the uphill process (9.1) triggers and then builds presses the decompression control valve must establish periodically action of beginning by cable.
6. a kind of accumulating type energy-conserving hydraulic pumping unit according to claim 3, it is characterized in that: described load cylinder is push type oil cylinder or tension type oil cylinder, described accumulation of energy oil cylinder is push type oil cylinder or tension type oil cylinder, described load cylinder is in parallel with the accumulation of energy oil cylinder or be connected in series, the mode that described load cylinder and accumulation of energy oil cylinder are connected in parallel is: be arranged side by side about described load cylinder and accumulation of energy oil cylinder, the loading piston rod (812) of described load cylinder, the energy storage piston bar (822) of accumulation of energy oil cylinder are fixedlyed connected with connection set (10) simultaneously;
The mode that described load cylinder and hydraulic jack are connected in parallel is: described load cylinder and accumulation of energy oil cylinder stacked on top arrange, described accumulation of energy oil cylinder is positioned at the load cylinder top, the energy storage piston bar (822) of described accumulation of energy oil cylinder is connected with the loading piston (811) of load cylinder, and the loading piston rod (812) of described load cylinder is connected with connection set (10).
7. a kind of accumulating type energy-conserving hydraulic pumping unit according to claim 3, it is characterized in that: described pumping unit has
Storage Unit and accumulator are played second relief valve (3.2) of protective function, in the oil pocket that described second relief valve (3.2) is installed in the accumulation of energy oil cylinder and the oil circuit that accumulator (4) is communicated with;
Prevent that but Storage Unit from inhaling sky or shutdown of pumping machine manual tune and discharging first one-way throttle valve (5.1) of accumulation of energy pressure, in the oil pocket that described first one-way throttle valve (5.1) is installed in the accumulation of energy oil cylinder and the oil circuit that accumulator (4) is communicated with;
Be used for to regulate the rate of descent of connection set or the throttle valve (7) that uphill process is used for regulating accumulator accumulation of energy release rate in the decline process, in the oil pocket that described throttle valve (7) is installed in the accumulation of energy oil cylinder and the oil circuit that accumulator (4) is communicated with;
Prevent that but loading unit from inhaling second one-way throttle valve (5.2) of sky or shutdown of pumping machine manual tune, described second one-way throttle valve (5.2) is installed in first one-way valve (6.1) and the oil circuit that the oil pocket of load cylinder is communicated with.
8. a kind of accumulating type energy-conserving hydraulic pumping unit according to claim 1, it is characterized in that: described oil hydraulic pump (2) is hydraulic pressure output electronics ratio variable flow unit, the electronics Proportional valve of control fluid changes in flow rate is installed in Storage Unit and the oil circuit that accumulator (4) is communicated with, and the positioning control of loading unit and Storage Unit is the magnetic scale sensor of analog amount; It is stepless adjustable that hydraulic pressure electronics ratio variable flow unit changes hydraulic fluid flow rate according to the output that is in proportion of electrical signal.
9. a kind of accumulating type energy-conserving hydraulic pumping unit according to claim 1, it is characterized in that: described loading unit is for loading with oil hydraulic motor (8.1), described Storage Unit is accumulation of energy oil hydraulic motor (8.2), described loading oil hydraulic motor (8.1) and accumulation of energy oil hydraulic motor (8.2) tandem drive hydraulic wireline winch, hydraulic wireline winch is connected with connection set.
10. a kind of accumulating type energy-conserving hydraulic pumping unit according to claim 1, it is characterized in that: described loading unit is by last load cylinder (211), following load cylinder (212) is formed, described Storage Unit is by last accumulation of energy oil cylinder (221), following accumulation of energy oil cylinder (222) is formed, last load cylinder (211), following load cylinder (212) is arranged on the adpting flange of well mouth of oil well tree (30), last accumulation of energy oil cylinder (221), following accumulation of energy oil cylinder (222) is arranged on the adpting flange of well mouth of oil well tree (30), last load cylinder (211), following load cylinder (212), last accumulation of energy oil cylinder (221), following accumulation of energy oil cylinder (222) piston rod is separately fixedlyed connected with connection set.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320086741 CN203161681U (en) | 2013-02-26 | 2013-02-26 | Energy storage type energy-saving hydraulic oil pumping unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320086741 CN203161681U (en) | 2013-02-26 | 2013-02-26 | Energy storage type energy-saving hydraulic oil pumping unit |
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| CN203161681U true CN203161681U (en) | 2013-08-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133434A (en) * | 2013-02-26 | 2013-06-05 | 王文雯 | Energy storage type energy-saving hydraulic pumping unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133434A (en) * | 2013-02-26 | 2013-06-05 | 王文雯 | Energy storage type energy-saving hydraulic pumping unit |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180914 Address after: 213001 room 442, North District, innovation and technology building, Hi-Tech Park, Xinbei District, Changzhou, Jiangsu Patentee after: Changzhou able Fluid Technology Co.,Ltd. Address before: 213161 room 17, unit 17, Kumho apartment, Hutang Town, Wujin District, Changzhou, Jiangsu. Patentee before: Wang Wenwen |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |
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