CN106837254A - Single drive pumping unit structure - Google Patents
Single drive pumping unit structure Download PDFInfo
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- CN106837254A CN106837254A CN201710101363.8A CN201710101363A CN106837254A CN 106837254 A CN106837254 A CN 106837254A CN 201710101363 A CN201710101363 A CN 201710101363A CN 106837254 A CN106837254 A CN 106837254A
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- oil well
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- 238000005086 pumping Methods 0.000 title claims abstract description 38
- 239000003129 oil well Substances 0.000 claims abstract description 55
- 238000004146 energy storage Methods 0.000 claims abstract description 20
- 238000004804 winding Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 15
- 230000007246 mechanism Effects 0.000 description 9
- 230000005611 electricity Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 238000005381 potential energy Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/74—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more AC dynamo-electric motors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention provides a kind of single drive pumping unit structure, it is related to oil extractor field, the three-phase line of the first motor of single drive pumping unit structure and the three-phase line of the second motor are connected with the three-phase line of frequency converter respectively, and first motor three-phase line and the second motor three-phase line access frequency converter phase it is different, so that the first oil well pump and the second oil well pump do and are lifted each other, the motion of landing, electrical energy storage device respectively with the first motor and the second electronic mechatronics, electrical energy storage device is used to store the electric energy that the first flexible machine for doing dropping motion is produced, the electric energy is utilized when doing lifter motion so as to the second flexible machine for doing lifter motion.Both increase energy back device is eliminated, electric energy is fed back to the trouble of power network, turn avoid and electric energy is discharged into air, the wasting of resources for causing.Power department examination ＆ approval are not needed to enter power network, it becomes possible to effectively utilize and do the electric energy that the flexible machine of dropping motion is produced.
Description
Technical field
The present invention relates to oil extractor field, in particular to a kind of single drive pumping unit structure.
Background technology
Oil pumping mechanism is a kind of machinery equipment for exploiting oil, by the method pressurizeed oil can be made to go out well.In unit
Individual well oil pumping mechanism, that is, during comprising an oil recovery mechanism for flexible machine to a bite oil well acquisition, by the rope closing of flexible strand
The spool lifts of operation handlebar oil well pump get up, then by flexible strand put rope operation handlebar oil well pump plunger land down, so
Back and forth.In the lifting process of oil well pump, electric energy is converted into potential energy, and motor is done manual work；In the descent of plunger, potential energy turns
Electric energy is changed to, motor generates electricity, but the energy for generating electricity by energy back device if it can not feed back to power network, can only
The electric energy for sending is converted into during heat energy diffuses to air by brake unit and braking resistor.And energy back installation cost ratio
It is higher, and, the electric energy of feedback will be successfully entered power network, it is necessary to obtain the networking license of power department, operate also very
Trouble.Therefore, the electric energy produced when how effectively to be declined using oil well pump just turns into a problem demanding prompt solution.
The content of the invention
In view of this, it is an object of the invention to provide a kind of single drive pumping unit structure, to solve the above problems.
What embodiments of the invention were realized in：
In a first aspect, the present invention provides a kind of single drive pumping unit structure, single drive pumping unit structure includes the first flexible machine, the
One oil well pump, the second flexible machine, the second oil well pump and frequency converter.First flexible machine is connected with first oil well pump,
Rise for driving first oil well pump to do, descending motion；Second flexible machine is connected with second oil well pump, is used for
Drive second oil well pump do rise, descending motion.First flexible machine includes the first motor, second flexible machine
Including the second motor, the frequency converter respectively with first motor and the second electronic mechatronics, for driving
State the first motor and the second motor.First motor is provided with three-phase line, and second motor is provided with
Three-phase line, the frequency converter includes three-phase line, the three-phase line of first motor and second motor
Three-phase line of the three-phase line respectively with the frequency converter is connected, and the three-phase line of first motor and the described second electricity
The phase that the three-phase line of motivation accesses the frequency converter is different, so that first oil well pump and the second oil well pump do each other
Lifting, the motion of landing, the frequency converter also include electrical energy storage device, and the electrical energy storage device is electric with described first respectively
Motivation and the second electronic mechatronics, the electrical energy storage device are used to store what the first flexible machine for doing dropping motion was produced
Electric energy, the electric energy is utilized when doing lifter motion so as to the second flexible machine for doing lifter motion.
In preferred embodiments of the present invention, the three-phase line of the frequency converter is respectively U1 circuits, V1 circuits and W1
Circuit, the three-phase line of first motor is respectively U2 circuits, V2 circuits and W2 circuits, the three of second motor
Phase line is respectively U3 circuits, V3 circuits and W3 circuits.
In preferred embodiments of the present invention, above-mentioned U1 circuits are electrically connected with the U2 circuits and U3 circuits respectively, institute
State V1 circuits respectively with the V2 circuits and W3 connections, the W1 circuits are connected with the W2 and V3 respectively.
In preferred embodiments of the present invention, above-mentioned U1 circuits are electrically connected with the U2 circuits and V3 circuits respectively, institute
State V1 circuits respectively with the V2 circuits and U3 connections, the W1 circuits are connected with the W2 and W3 respectively.
In preferred embodiments of the present invention, above-mentioned U1 circuits are electrically connected with the U2 circuits and V3 circuits respectively, institute
State V1 circuits respectively with the V2 circuits and W3 connections, the W1 circuits respectively with W2 the and U3 connections.
In preferred embodiments of the present invention, above-mentioned U1 circuits are electrically connected with the U2 circuits and W3 circuits respectively, institute
State V1 circuits respectively with the V2 circuits and V3 connections, the W1 circuits respectively with W2 the and U3 connections.
In preferred embodiments of the present invention, above-mentioned U1 circuits are electrically connected with the U2 circuits and W3 circuits respectively, institute
State V1 circuits respectively with the V2 circuits and U3 connections, the W1 circuits respectively with W2 the and V3 connections.
In preferred embodiments of the present invention, above-mentioned first flexible machine includes the first sucker rod reel and the first flexibility
Rope, the first sucker rod reel is connected with first motor, and is provided with the first spiral shell on the first sucker rod reel
Spin slot, the first flexible strand spiral is arranged with first helicla flute, and the free end of first flexible strand is connected with first
Oil well pump.Second flexible machine includes the second sucker rod reel and the second flexible strand, the second sucker rod reel and institute
The connection of the second motor is stated, and the second helicla flute, the second flexible strand spiral winding are provided with the second sucker rod reel
If with second helicla flute, the free end of second flexible strand is connected with the second oil well pump.
In preferred embodiments of the present invention, above-mentioned first motor and the second motor are three-phase alternating-current motor.
The beneficial effect of the embodiment of the present invention is：
Single drive pumping unit structure provided in an embodiment of the present invention, is coordinated using two flexible machines and extracts two oil of oil well,
The three-phase line of the first motor is different from the phase that the three-phase line of the second motor accesses frequency converter, so that described first takes out
Oil pump and the second oil well pump do the motion for being lifted each other, being landed.Electrical energy storage device respectively with the first motor and second
Electronic mechatronics, electrical energy storage device is used to store the electric energy that the first flexible machine for doing dropping motion is produced, to be lifted
Second flexible machine of motion is utilized when doing lifter motion.That is when a flexible machine does dropping motion, in addition one it is soft
Property machine does lifter motion.So that the electric energy that the flexible machine for doing dropping motion sends, is an other flexible machine for doing ascending motion
Utilized.Both increase energy back device is eliminated, electric energy is fed back to the trouble of power network, turn avoid and electric energy is discharged into sky
In gas, the wasting of resources for causing.Power department examination ＆ approval are not needed to enter power network, it becomes possible to effectively utilize and do the soft of dropping motion
Property machine produce electric energy.
Other features and advantages of the present invention will illustrate in subsequent specification, also, partly become from specification
It is clear that or being understood by implementing the embodiment of the present invention.The purpose of the present invention and other advantages can be by saying for being write
Specifically noted structure is realized and obtained in bright book, claims and accompanying drawing.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be attached to what is used needed for embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the structural representation of the oil pumping mechanism of prior art；
A kind of structural representation of single drive pumping unit structure that Fig. 2 is provided for present pre-ferred embodiments；
Another structural representation of single drive pumping unit structure that Fig. 3 is provided for present pre-ferred embodiments.
Icon：100- oil recoveries mechanism；110- flexible machines；111- flexible strands；120- motor；The mono- drive pumping unit structures of 200-；
The flexible machines of 210- first；211- the first flexible machine bodies；The flexible strands of 213- first；The motor of 215- first；250- second is flexible
Machine；251- the second flexible machine bodies；The flexible strands of 253- second；The motor of 255- second；270- frequency converters；280- power storages are filled
Put.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Present invention implementation generally described and illustrated in accompanying drawing herein
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.
In the description of the invention, it is necessary to explanation, the orientation or position relationship of instruction are based on side shown in the drawings
Position or position relationship, or the orientation usually put when using of the invention product or position relationship, are for only for ease of description
The present invention is described with simplified, must be with specific orientation, with specific rather than the device or element for indicating or imply meaning
Azimuth configuration and operation, therefore be not considered as limiting the invention.
Additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that indicating or implying
Relative importance.
In the description of the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " coupling ",
" connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can be
Mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood in the present invention
In concrete meaning.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, it is also possible to pass through
Other modes are realized.Device embodiment described herein is only schematical.In addition, in each embodiment of the invention
In each functional module can integrate to form an independent part, or modules individualism, also may be used
An independent part is integrated to form with two or more modules.
The mechanism that can pump is a kind of machinery equipment for exploiting oil, by the method pressurizeed oil can be made to go out well.
Generally directly dragged by AC asynchronous motor.Its crank band drives sucker rod with balance, drives downhole pump to do
The oil of underground, is sent to ground by pumping for fixed cycle.Lifting, landing with sucker rod.And make motor work
Make in state that is electronic, generating electricity.
Specifically, Fig. 1 is referred to, is the structural representation of existing oil recovery mechanism 100, in a flexible machine 110 pairs
In the oil recovery mechanism 100 of mouth well, raised up by the rope closing operation handlebar oil pump plunger piston of flexible strand 111, then by flexible strand
111 rope operation handlebar oil pump plunger piston landing of putting down, and so on.In the lifting process of plunger, motor 120 is acting
's；In the descent of plunger, motor 120 is to generate electricity.
Generally, in uphill process, from power network energy absorption electric operation；The load characteristic of motor during decline
For potential is loaded, DH negative pressure etc. makes motor 120 be in generating state in addition, and mechanical energy is converted to electric energy to be turned by energy
Changing device feeds back to power network.
But energy back installation cost is higher, certain integrity problem is there is also, the electric energy of feedback will successfully enter
Enter power network, it is necessary to obtain the networking license of power department, operate also cumbersome.
But the energy for generating electricity, can only be by brake unit if it can not feed back to power network by energy back device
The electric energy for sending is converted into during heat energy diffuses to air with braking resistor, causes the waste of resource.
In view of this, inventor is by long-term research and constantly explores, and proposes list provided in an embodiment of the present invention
Drive pumping unit structure.
First embodiment
Fig. 2 and Fig. 3 is referred to, is the structural representation of single drive pumping unit structure 200 that present pre-ferred embodiments are provided.
Single drive pumping unit structure 200 includes the first flexible machine 210, the first oil well pump, the second flexible machine 250, the second oil well pump, frequency converter
270。
Wherein, frequency converter 270 is electrically connected with the flexible machine 250 of first flexible machine 210 and second respectively, and described first
Flexible machine 210 is connected with first oil well pump, for driving first oil well pump to be lifted, dropping motion.Described second
Flexible machine 250 is connected with second oil well pump, for driving second oil well pump to be lifted, dropping motion.
Wherein, the first flexible machine 210 includes the first flexible machine body 211 and the first flexible strand 213, and described first is flexible
Rope 213 is set around on the first flexible machine body 211, and the free end of first flexible strand 213 is connected with described first and takes out
Oil pump.First flexible strand 213 is used to drive first oil well pump to do upward lifter motion or downward landing fortune
It is dynamic.
Further, the first sucker rod reel, first flexible strand are provided with the first flexible machine body 211
213 are set around the first sucker rod reel.
Further, the first helicla flute is provided with the first sucker rod reel, first helicla flute is along described
One sucker rod reel it is axially arranged, first flexible strand 213 is set around the first sucker rod reel.Specifically, it is described
First flexible strand 213 by the helicla flute one end winding clockwise or counter-clockwise.
Further, for the ease of driving the automatic of the first flexible strand 213, deflecting rotation, first flexible machine 210 is wrapped
The first motor 215 is included, first motor 215 is electrically connected with the sucker rod reel of the frequency converter 270 and first respectively.
First motor 215 is used for realization to the serving of the first flexible strand 213 or puts rope, so that the first oil well pump is lifted or dropped
Fall motion.Furthermore it is also possible to control device is set, the rotating speed for controlling the first motor 215, to realize that control first is flexible
The stretching speed of rope 213, for example, the speed of the first flexible strand 213 can be controlled in 0.01-0.35mm per second.
Used as a kind of implementation method, the first motor 215 is three-phase alternating-current motor, and threephase motor has triple line
Road, threephase stator winding each differs 120 degree, so as to produce induced-current in rotor windings.Wherein, rotor windings are closures
Loop.The rotor conductor of current-carrying produces electromagnetic force under the effect of stator rotating excitation field, turns so as to form electromagnetism on machine shaft
Square, drive motor rotation, three-phase alternating-current motor direction of rotation is identical with rotating excitation field direction.
Structure with the first flexible machine 210 is similar, second flexible machine 250 include the second flexible machine body 251 with
And second flexible strand 253, second flexible strand 253 is set around on the second flexible machine body 251, second flexible strand
253 free end is connected with the second oil well pump.The second sucker rod reel is provided with the second flexible machine body 251, it is described
First flexible strand 213 is set around the first sucker rod reel, and second flexible strand 253 is set around the second sucker rod volume
Cylinder.The second helicla flute is provided with the second sucker rod reel, second helicla flute is along the second sucker rod reel
Axially arranged, second flexible strand 253 is set around the second sucker rod reel.Second flexible machine 250 also includes the
Two motor 255, second motor 255 is electrically connected with the sucker rod reel of the frequency converter 270 and second respectively.Equally
Ground, the three-phase alternating-current motor of the second motor 255.
Because the first motor 215 and the second motor 255 are to access frequency converter 270 with three-phase line, in order to solve
The electric energy that oil well pump present in prior art is produced when landing reuses the problem of inconvenient or waste of energy, by first
The motor 255 of motor 215 and second accesses frequency converter 270 with the circuit of out of phase respectively so that the first oil well pump or
The oil well pump of person second does the motion for being lifted each other, being landed, what the final flexible machine for realizing driving oil well pump to do dropping motion was produced
Power storage is in electrical energy storage device 280, so that the flexible machine for driving oil well pump to do lifter motion utilizes the electric energy.
Specifically, the three-phase line of frequency converter 270 is respectively U1 circuits, V1 circuits and W1 circuits, the first motor 215
Three-phase line be respectively U2 circuits, V2 circuits and W2 circuits, the three-phase line of second motor 255 is respectively U3 lines
Road, V3 circuits and W3 circuits.First motor 215 and the second motor 255 are as follows with the several ways of frequency converter 270：
As a kind of implementation method, the U1 circuits of the frequency converter 270 respectively with the U2 circuits of first motor 215
And second motor 255 the electrical connection of U3 circuits, the V1 circuits of the frequency converter 270 respectively with first motor 215
V2 circuits and the second motor 255 W3 connections, the W1 circuits of the frequency converter 270 are electronic with described first respectively
The V3 connections of the W2 circuits of machine 215 and the second motor 255.
As second implementation method, the U1 circuits of the frequency converter 270 respectively with the U2 circuits of the first motor 215 with
And second motor 255 the electrical connection of V3 circuits, the V1 circuits of the frequency converter 270 respectively with first motor 215
The U3 connections of V2 circuits and the second motor 255, the W1 circuits of the frequency converter 270 respectively with first motor
The W3 connections of 215 W2 circuits and the second motor 255.
As the third implementation method, the frequency converter 270 U1 circuits respectively with the U2 lines of first motor 215
The V3 circuits electrical connection of road and the second motor 255, the V1 circuits of the frequency converter 270 respectively with first motor
The W3 connections of 215 V2 circuits and the second motor 255, the W1 circuits of the frequency converter 270 are respectively with described first
The U3 connections of the W2 circuits of motor 215 and the second motor 255.
As the 4th kind of implementation method, the U1 circuits of the frequency converter 270 respectively with the U2 lines of first motor 215
The W3 circuits electrical connection of road and the second motor 255, the V1 circuits of the frequency converter 270 respectively with first motor
The V3 connections of 215 V2 circuits and the second motor 255, the W1 circuits of the frequency converter 270 are respectively with described first
The U3 connections of the W2 of motor 215 and the second motor 255.
As the 5th kind of implementation method, the U1 circuits of the frequency converter 270 respectively with the U2 lines of first motor 215
The W3 circuits electrical connection of road and the second motor 255, the V1 circuits of the frequency converter 270 respectively with first motor
The U3 connections of 215 V2 circuits and the second motor 255, the W1 circuits of the frequency converter 270 are respectively with described first
The V3 connections of the W2 circuits of motor 215 and the second motor 255.
Frequency converter 270 also include electrical energy storage device 280, electrical energy storage device 280 respectively with the first motor 215 and
Second motor 255 is electrically connected, and electrical energy storage device 280 is used to store the electric energy that the flexible machine for doing dropping motion is produced, so as to
The flexible machine for doing lifter motion utilizes the electric energy when doing lifter motion.
Specifically, because the phase that the first motor 215 and the second motor 255 access frequency converter 270 is different, therefore
First motor 215 does opposite motion with the second motor 255., connected first is lifted in the first flexible machine 210
When oil well pump, the second flexible machine 250 puts down the second oil well pump being attached thereto.Now, the first flexible machine 210 is outside needing
Bound pair it do work, that is to say, that the first motor 215 of the first flexible machine 210 from power taking on electrical energy storage device 280,
Electric energy is converted to the power of rising；Meanwhile, the second flexible machine 250 is externally acting, that is to say, that the work of the second motor 255
Make in power generation mode, be electric energy the potential energy converting and energy for declining, and export to electrical energy storage device 280.The two processes are simultaneously
Occur, electricity when the second oil well pump that the second flexible machine 250 drives lands, by first in electrical energy storage device 280
The first oil well pump that flexible machine 210 drives make use of when doing ascending motion.Conversely, be also the similar course of work, here no longer
Describe in detail.
Certainly, from the characteristic of oil pumper, the electric energy needed during lifting always than declining when the electric energy that produces it is many.Therefore
Whole process, power network is powered to frequency converter 270 always, and simply wherein one motor electricity directly listened power storage to fill
Another generator of 280 supplies is put to use.Single drive pumping unit structure 200 that the present invention is provided is without the situation for increasing any equipment
Under, the energy of motor generating is taken full advantage of, compared with two sets of independent oil pumping mechanisms, save energy.
Used as a kind of implementation method, electrical energy storage device 280 can be dc bus, and dc bus can obtain preferable
Sound performance, adjusting speed accuracy while, the regeneration energy of single drive pumping unit structure 200 is reasonably used, eliminate
Substantial amounts of brake unit, braking resistor so that single efficiency of drive pumping unit structure 200 is improved.
Wherein, there is ability of preferably pumping in order to ensure single drive pumping unit structure 200 provided in an embodiment of the present invention, it is above-mentioned
Air line distance between two oil wells that single drive pumping unit structure 200 is worked can be controlled in the range of 12-30 meters.
Single drive pumping unit structure 200 provided in an embodiment of the present invention, is coordinated using two flexible machines and extracts two stones of oil well
Oil, when a flexible machine does dropping motion, a flexible machine does lifter motion in addition.So that doing the flexible machine hair of dropping motion
The electric energy for going out, is utilized by an other flexible machine for doing ascending motion.Both increase energy back device is eliminated, electric energy is anti-
The trouble of power network is fed back to, be turn avoid and electric energy is discharged into air, cause the wasting of resources.Power department examination ＆ approval are not needed to enter
Power network, it becomes possible to effectively utilize and do the electric energy that the flexible machine of dropping motion is produced.
In sum, single drive pumping unit structure 200 that the present invention is provided, can reasonably utilize energy, cost-effective.
That is, when the first flexible machine 210 drives the first oil well pump to do dropping motion, the second flexible machine 250 drives
Second oil well pump does lifter motion, the power storage that the first oil well pump is produced when landing to electrical energy storage device 280 so that second
Flexible machine 250 drives second to take out when pump does lifter motion and utilizes；Similarly, the second oil well pump is driven to do in the second flexible machine 250
During dropping motion, the power storage produced when can the second oil well pump be landed to electrical energy storage device 280, so that the first flexible machine
210 the first oil well pumps of drive are utilized when doing lifter motion.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of single drive pumping unit structure, it is characterised in that single drive pumping unit structure include the first flexible machine, the first oil well pump,
Second flexible machine, the second oil well pump and frequency converter；
First flexible machine is connected with first oil well pump, rises for driving first oil well pump to do, descending motion；
Second flexible machine is connected with second oil well pump, rises for driving second oil well pump to do, descending motion；
First flexible machine includes the first motor, and second flexible machine includes the second motor, the frequency converter difference
With first motor and the second electronic mechatronics, for driving first motor and the second motor；
First motor is provided with three-phase line, and second motor is provided with three-phase line, and the frequency converter includes
The three-phase line of three-phase line, the three-phase line of first motor and second motor respectively with the frequency converter
Three-phase line connection, and the three-phase line of the three-phase line of first motor and second motor accesses the change
The phase of frequency device is different, so that first oil well pump and the second oil well pump do the motion for being lifted each other, being landed, the frequency conversion
Device also includes electrical energy storage device, and the electrical energy storage device is electrically connected with first motor and the second motor respectively
Connect, the electrical energy storage device is used to store the electric energy that the first flexible machine for doing dropping motion is produced, to do lifter motion
Second flexible machine utilizes the electric energy when doing lifter motion.
2. single drive pumping unit structure according to claim 1, it is characterised in that the three-phase line of the frequency converter is respectively U1
Circuit, V1 circuits and W1 circuits, the three-phase line of first motor are respectively U2 circuits, V2 circuits and W2 circuits,
The three-phase line of second motor is respectively U3 circuits, V3 circuits and W3 circuits.
3. single drive pumping unit structure according to claim 2, it is characterised in that the U1 circuits respectively with the U2 circuits with
And U3 circuits electrical connection, the V1 circuits respectively with the V2 circuits and W3 connections, the W1 circuits respectively with it is described
W2 circuits and V3 connections.
4. single drive pumping unit structure according to claim 2, it is characterised in that the U1 circuits respectively with the U2 circuits with
And V3 circuits electrical connection, the V1 circuits respectively with the V2 circuits and U3 connections, the W1 circuits respectively with it is described
W2 and W3 connections.
5. single drive pumping unit structure according to claim 2, it is characterised in that the U1 circuits respectively with the U2 circuits with
And V3 circuits electrical connection, the V1 circuits respectively with the V2 circuits and W3 connections, the W1 circuits respectively with it is described
W2 and U3 connections.
6. single drive pumping unit structure according to claim 2, it is characterised in that the U1 circuits respectively with the U2 circuits with
And W3 circuits electrical connection, the V1 circuits respectively with the V2 circuits and V3 connections, the W1 circuits respectively with it is described
W2 and U3 connections.
7. single drive pumping unit structure according to claim 2, it is characterised in that the U1 circuits respectively with the U2 circuits with
And W3 circuits electrical connection, the V1 circuits respectively with the V2 circuits and U3 connections, the W1 circuits respectively with it is described
W2 and V3 connections.
8. single drive pumping unit structure according to claim 1, it is characterised in that first flexible machine includes the first sucker rod
Reel and the first flexible strand, the first sucker rod reel are connected with first motor, and first sucker rod is rolled up
The first helicla flute is provided with cylinder, the first flexible strand spiral is arranged with first helicla flute, first flexible strand
Free end is connected with the first oil well pump；
Second flexible machine includes the second sucker rod reel and the second flexible strand, the second sucker rod reel and described the
Two motor are connected, and the second helicla flute are provided with the second sucker rod reel, the second flexible strand spiral winding with
Second helicla flute, the free end of second flexible strand is connected with the second oil well pump.
9. single drive pumping unit structure according to claim 1, it is characterised in that first motor and the second motor
It is three-phase alternating-current motor.
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| CN201710101363.8A CN106837254A (en) | 2017-02-23 | 2017-02-23 | Single drive pumping unit structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710101363.8A CN106837254A (en) | 2017-02-23 | 2017-02-23 | Single drive pumping unit structure |
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| CN106837254A true CN106837254A (en) | 2017-06-13 |
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| CN107795301A (en) * | 2017-11-28 | 2018-03-13 | 青岛新胜石油机械有限公司 | Compact oil recovery mechanism and system |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
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Effective date of registration: 20180207 Address after: 266000 north 3, Mao Jia Bu Xi village, Laixi City, Laixi City, Qingdao City Applicant after: Qingdao Xinsheng Petroleum Machinery Co. Ltd. Address before: 224000 Tianjin road Yancheng City Jianhu County, Jiangsu Province Economic Development Zone No. 168 Applicant before: JIANGSU HENGRUI PETROLEUM EQUIPMENT MACHINERY MANUFACTURING CO., LTD. |
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Application publication date: 20170613 |