US20150361776A1 - Flywheel energy storage oil pumping machine - Google Patents
Flywheel energy storage oil pumping machine Download PDFInfo
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- US20150361776A1 US20150361776A1 US14/653,063 US201314653063A US2015361776A1 US 20150361776 A1 US20150361776 A1 US 20150361776A1 US 201314653063 A US201314653063 A US 201314653063A US 2015361776 A1 US2015361776 A1 US 2015361776A1
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- 238000005086 pumping Methods 0.000 title claims abstract description 45
- 238000004146 energy storage Methods 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 52
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 23
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 33
- 238000010586 diagram Methods 0.000 description 7
- 239000003129 oil well Substances 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H33/00—Gearings based on repeated accumulation and delivery of energy
- F16H33/02—Rotary transmissions with mechanical accumulators, e.g. weights, springs, intermittently-connected flywheels
Abstract
Disclosed is a flywheel energy storage oil pumping machine, comprising an electric motor (1) and a control device (3), and also comprising a rotary spindle (2), a lifting roller (4) for lifting an oil sucker rod, a roller drive wheel (6), an energy adjustment flywheel (7), a transmission (8) and an energy feedback device (9), wherein the lifting roller (4)is sheathed on the rotary spindle (2), and the separation and reunion between the rotary spindle (2) and the lifting roller (4) are achieved via a clutch (5); the roller drive wheel (6) is fixedly connected to the lifting roller (4); and a low-speed end of the transmission (8) is connected to the rotary spindle (2), and a high-speed end is connected to the energy adjustment flywheel (7). The flywheel energy storage oil pumping machine is simple in structure, low in cost, small in size, light in weight, small installation capacity of an electric motor, low in energy consumption, high in efficiency and low in failure rate, and has nearly no pollution in a power grid.
Description
- The present invention relates to the technical field of oil production equipment for an oil field, more particularly to a flywheel energy storage oil pumping machine.
- The working principle of an oil pumping machine with a sucker rod is pumping petroleum out from an oil well through the vertical up-and-down movement of the sucker rod. An oil pumping machine with a sucker rod in the prior art generally comprises a speed reducer, a balance system, a reversing device and various mechanical driving devices. The energy transfer way of such an oil pumping machine with a sucker rod is: electric motor-belt wheel-speed reducer-balance system-reversing device-various mechanical driving devices. There are many transfer links, resulting in high energy consumption and serious waste. During the operating of such oil pumping machines, the work done by the oil pumping machines is not uniform due to their structural features. In the up-and-down stroke of such an oil pumping machine, the energy required by the sucker rod varies greatly, while the output power of the electric motor must correspond to the power required by the movement of the sucker rod. Specifically, the power of the electric motor must meet maximum power in the up-and-down stroke. Therefore, the installed capacity of the electric motor is large, generally multiple times larger than actually required average power, and even above 7 times. Meanwhile, due to the starting characteristics of the electric motor, there is a large impact to the power grid, thereby causing serious pollution to the power grid. A Chinese Utility Model CN200982182Y, published on Nov. 28, 2007, disclosed such an oil pumping machine.
- In view of the deficiencies in the prior art, the object of the present invention is to provide a flywheel energy storage oil pumping machine, which is simple in structure, cheap, small in volume, light in weight, small in the installed capacity of the electric motor, low in energy consumption, high in efficiency, low in failure rate, and free from pollution to the power grid.
- To solve the above technical problem, the present invention employs the following technical solution: a flywheel energy storage oil pumping machine is provided, comprising an electric motor and a control device, and further comprising a rotary spindle;
- a lifting roller, used for raising and lowering a sucker rod, sleeved on the rotary spindle, the separation or joining of the rotary spindle from/with the lifting roller being realized via clutches;
- a roller drive wheel, fixedly connected with the lifting roller to form a whole;
- an energy adjustment flywheel;
- a transmission, a low-speed end of which is connected to the rotary spindle while a high-speed end of which is connected to the energy adjustment flywheel;
- an energy feedback device, used for transferring, to the energy adjustment flywheel via the transmission, energy generated during lowering the sucker rod, to realize the accelerated rotation of the energy adjustment flywheel for energy storage, the energy of the energy adjustment flywheel being able to be transferred to the lifting roller for raising the sucker rod when the lifting roller raises the sucker rod;
- In the flywheel energy storage oil pumping machine provided by the present invention, the rotary spindle is driven by the electric motor, and through transmission, the energy adjustment flywheel begins to rotate. When the flywheel reaches to a certain rotate speed, the sucker rod begins to be lifted, and the pumping machine begins to work. When the pumping machine is working, the potential energy of the sucker rod during its down stroke is transferred to the energy adjustment flywheel via the energy feedback device, and then converted by the energy adjustment flywheel into the accelerated rotation of the energy adjustment flywheel, so that the energy is stored. Meanwhile, the energy feedback device may control the speed of the sucker rod during the down stroke, thereby making the down stroke of the sucker rod very stable and decreasing the impact. During the up stroke of the sucker rod, the sucker rod is driven to rise through the rotational energy of the energy adjustment flywheel, thus to release energy. In this way, the output power of the electric motor does not have to correspond to the instant power consumption of the sucker rod during rising of the sucker rod. Therefore, the power of the electric motor can almost get close to a theoretical minimum value, thereby greatly reducing the installed capacity of the electric motor, making the power output more stable, decreasing the impact to the power grid, and greatly reducing the pollution to the power grid. In addition, the oil pumping machine provided by the present invention is not provided with a balance system, a four-bar linkage and other essential members of an existing oil pumping machine, so its structure is simple, both its size and weight are reduced greatly, and its reliability is enhanced greatly.
- As a preferred technical solution of the present invention, the energy feedback device comprises a drive shaft and a first drive wheel and a second drive wheel disposed on the drive shaft, the first drive wheel or the second drive wheel being connected to the drive shaft via an energy feedback clutch, the first drive wheel and the roller drive wheel being a pair of meshed gears, and the second drive wheel being connected to the transmission.
- As a preferred technical solution of the present invention, the energy feedback device comprises a rotating shaft, a first drive wheel and a second drive wheel, the rotating shaft being connected to the second drive wheel via an energy feedback clutch, the first drive wheel, the second drive wheel and the roller drive wheels being gears, the first drive wheel being positioned between the roller drive wheel and the second drive wheel and being meshed with both the roller drive wheel and the second drive wheel, and the second drive wheel being connected to the transmission.
- As a preferred technical solution of the present invention, the energy feedback device comprises a drive shaft and a first drive wheel, the drive shaft being connected to the first drive wheel via an energy feedback clutch, and the first drive wheel being connected to the roller drive wheel via a driving belt.
- As a preferred technical solution of the present invention, the energy feedback device comprises a drive shaft, a transition wheel fixedly connected to the rotary spindle, and a first drive wheel and a second drive wheel disposed on the drive shaft, the first drive wheel or the second drive wheel being connected to the drive shaft via an energy feedback clutch, the first drive wheel and the roller drive wheel being a pair of meshed gears, and the second drive wheel being connected to the transition wheel via a driving belt.
- As a preferred technical solution of the present invention, the energy feedback device comprises a drive shaft, a transition wheel fixedly connected to the rotary spindle, and a first drive wheel and a second drive wheel disposed on the drive shaft, the first drive wheel or the second drive wheel being connected to the drive shaft via an energy feedback clutch, the second drive wheel and the transition wheel being a pair of meshed gears, and the first drive wheel being connected to the roller drive wheel via a driving belt.
- As a preferred technical solution of the present invention, the energy feedback device comprises a drive shaft, a transition wheel fixedly connected to the rotary spindle, and a first drive wheel and a second drive wheel disposed on the drive shaft, the first drive wheel or the second drive wheel being connected to the drive shaft via an energy feedback clutch, the first drive wheel, the second drive wheel and the roller drive wheel being gears, the first drive wheel being meshed with the roller drive wheel, the transition wheel being provided with internal teeth, and the second drive wheel being meshed with the internal teeth.
- As a preferred technical solution of the present invention, an electric motor gear, meshed with the internal teeth, is mounted on the output shaft of the electric motor; or, the output shaft of the electric motor is connected to the transmission via an electric motor clutch.
- As a preferred technical solution of the present invention, the energy feedback clutch is an overrun clutch.
- The energy feedback clutch may be a mechanical clutch, for example, the whole clutch is divided into a fixed portion and a slide portion that can be engaged with each other. The slide portion may be pushed by an oil cylinder or air cylinder, so that the slide portion is joined with the fixed portion. If the energy feedback clutch is an overrun clutch, the structure of the whole energy feedback device is simpler, and standard components may be purchased directly.
- As a preferred technical solution of the present invention, the energy generated during lowering the sucker rod is transferred to the energy adjustment flywheel via the transmission to realize the accelerated rotation of the energy adjustment flywheel; or, the energy generated during lowering the sucker rod passes through the rotary spindle first and is then transferred to the energy adjustment flywheel via the transmission to realize the accelerated rotation of the energy adjustment flywheel.
- As an important component of the flywheel energy storage oil pumping machine provided by the present invention, the energy feedback device can transfer the energy generated during lowering the sucker rod to the energy adjustment flywheel, and then the energy is converted into the accelerated rotation of the energy adjustment flywheel to realize energy storage. Therefore, transfer links should be reduced to as few as possible, in order to improve the efficiency and lower the failure rate. The two transfer ways mentioned above have few intermediate links and high efficiency.
- The present invention has the following advantages:
- 1. The oil pumping machine has a simple structure, high efficiency, small installed capacity of the electric motor, no pollution to the power grid, low failure rate and high reliability;
- 2. The overall structure of the oil pumping machine is simplified greatly, so a large amount of steel is saved, the cost is reduced, and the competitiveness is enhanced; the oil pumping machine is small in size, so it is convenient for transportation and installation; and in addition, the whole oil pumping machine may be protected with a housing, so the protection grade of the oil pumping machine is improved;
- 3. With strong adaptability, the oil pumping machine may be applied to regular oil wells or heavy oil recovery; and it may be applied to oil recovery at both land and sea.
- The present invention will be further described as below with reference to accompanying drawings:
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FIG. 1 is a structure diagram ofEmbodiment 1 of the present invention; -
FIG. 2 is a structure diagram ofEmbodiment 2 of the present invention; -
FIG. 3 is a structure diagram of Embodiment 3 of the present invention; -
FIG. 4 is a structure diagram ofEmbodiment 4 of the present invention; -
FIG. 5 is a structure diagram ofEmbodiment 5 of the present invention; -
FIG. 6 is a structure diagram ofEmbodiment 6 of the present invention; and -
FIG. 7 is a structure diagram ofEmbodiment 7 of the present invention; - In the figures:
- 1—electric motor; 2—rotary spindle; 3—control device; 4—lifting roller; 5—clutch; 6—roller drive wheel; 7—energy adjustment flywheel; 8—transmission; 9—energy feedback device; 901—drive shaft; 902—transition wheel; 902 a—internal teeth; 903—first drive wheel; 904—second drive wheel; 905—energy feedback clutch; 906—driving belt; 10—electric motor gear; 11—electric motor clutch.
- The following description illustrates only the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.
- Referring to
FIG. 1 , a flywheel energy storage oil pumping machine comprises anelectric motor 1 and a control device 3, and further comprises arotary spindle 2, a liftingroller 4, aroller drive wheel 6, anenergy adjustment flywheel 7, atransmission 8, and an energy feedback device 9. The control device 3 comprises a PLC (Programmable Logic Controller), a position switch, a connection cable, etc., and is used for controlling the action of the whole oil pumping machine. Theelectric motor 1 may be a general electric motor or a variable-frequency electric motor. Therotary spindle 2 is an integral spindle. Of course, therotary spindle 2 may be one formed by integrating a plurality of split spindles via couplers or by welding or other manners. - The
electric motor 1 drives therotary spindle 2 to rotate. The liftingroller 4 is connected to a sucker rod (not shown) via a soft connector. The sucker rod is driven to rise by the forward rotation of the liftingroller 4, while during lowering, the sucker rod drives the liftingroller 4 to rotate reversely, so that up stroke and down stroke of the whole oil pumping machine are completed, and the oil pumping work is thus completed. The liftingroller 4 is sleeved on therotary spindle 2, so that the relative rotation can be generated between the liftingroller 4 and therotary spindle 2. Therotary spindle 2 is separated from or joined with the liftingroller 4 viaclutches 5. Theclutches 5 may be electromagnetic clutches, friction clutches, hydraulic clutches or other known clutches. In this embodiment, theclutches 5 are mechanical clutches, and there are total twoclutches 5 disposed at two ends of the liftingroller 4. Of course, there may be only oneclutch 5. Eachclutch 5 includes two portions, one of which is a fixed portion directly fixed on the liftingroller 4, while the other one is a slide portion connected to therotary spindle 2 in a form of spline. The two portions are provided with a neck and a latch which are engaged with each other. Pushed by an air cylinder, an oil cylinder or other devices, the slide portion may slide left and right in the axial direction, thereby realizing the join (separation) of the liftingroller 4 with (from) therotary spindle 2. Theroller drive wheel 6 is fixedly connected to the liftingroller 4 by welding, screwing or other known fixing manners. Thetransmission 8 may be in many forms. Thetransmission 8 may be a two-stage, three-stage, four-stage or five-stage transmission, or a continuously variable transmission, or a comprehensive transmission. However, no matter in which form, thetransmission 8 has a low-speed end and a high-speed end. The low-speed end of thetransmission 8 is connected to therotary spindle 2, so that the rotation speed of therotary spindle 2 is relatively low, usually dozens of revolutions per minute; and the high-speed end of thetransmission 8 is connected to theenergy adjustment flywheel 7. After theenergy adjustment flywheel 7 is connected to the high-speed end, its rotation speed is very high and may reach hundreds and even thousands of revolutions per minute. Theenergy adjustment flywheel 7 may be directly fixed on the shaft at the high-speed end of thetransmission 8, or, disposed on the shaft specially and then connected to the shaft at the high-speed end of thetransmission 8. - The energy feedback device 9 is used for transferring, to the
energy adjustment flywheel 7, energy generated during lowering the sucker rod, to realize the accelerated rotation of theenergy adjustment flywheel 7. Then, the energy of theenergy adjustment flywheel 7 is transferred to the liftingroller 4 for raising the sucker rod when the liftingroller 4 raises the sucker rod. The energy feedback device 9 at least comprises adrive shaft 901 and anenergy feedback clutch 905. Theenergy feedback clutch 905 is generally an overrun clutch. There are many ways for the energy generated during lowering the sucker rod to pass through the energy feedback device 9, wherein, preferably, the energy generated during lowering the sucker rod passes through the energy feedback device 9 first and is then transferred to theenergy adjustment flywheel 7 via thetransmission 8, to realize the accelerated rotation of theenergy adjustment flywheel 7; or, the energy generated during lowering the sucker rod passes through the energy feedback device 9 first, then passes through therotary spindle 2, and is finally transferred to theenergy adjustment flywheel 7 via thetransmission 8, to realize the accelerated rotation of theenergy adjustment flywheel 7. In this embodiment, the energy generated during lowering the sucker rod passes through the energy feedback device 9 first and is then transferred to theenergy adjustment flywheel 7 via thetransmission 8, to realize the accelerated rotation of theenergy adjustment flywheel 7. During the up and down stroke of the sucker rod, the rotation direction of therotary spindle 2 and the rotation direction of the energy adjustment flywheel keep unchanged. - In this embodiment, the energy feedback device 9 comprises a
drive shaft 901 and afirst drive wheel 903 and asecond drive wheel 904 disposed on thedrive shaft 901. Thefirst drive wheel 903 is connected to thedrive shaft 901 via anenergy feedback clutch 905. That is, one of thefirst drive wheel 903 and thesecond drive wheel 904 is connected to thedrive shaft 901 via theenergy feedback clutch 905, while the other one is fixedly connected to the drive shaft. In this embodiment, thefirst drive wheel 903 and theroller drive wheel 6 are a pair of meshed gears; furthermore, thefirst drive wheel 903 is connected to thedrive shaft 901 via theenergy feedback clutch 905. Theenergy feedback clutch 905 is a sprag overrun clutch. Thesecond drive wheel 904 can be connected to the lower-speed end of thetransmission 8 or the other end other than the high-speed end of the transmission, particularly in the case that thetransmission 8 is a multi-stage transmission. In this embodiment, thesecond drive wheel 904 is a gear meshed with a gear at the lower-end of thetransmission 8. Atransition wheel 902 is fixed on therotary spindle 2. Thetransition wheel 902 may be a gear meshed with a gear at the lower-end of thetransmission 8. Anelectric motor gear 10, meshed with a gear at the high-speed end of thetransmission 8, is mounted on the output shaft of theelectric motor 1 via anelectric motor clutch 11. Of course, theelectric motor 1 can be connected to a shaft at the high-speed end of thetransmission 8 via theelectric motor clutch 11. - The working principle of the flywheel energy storage oil pumping machine will be described in brief as below with reference to this embodiment. The oil pumping machine provided by this embodiment is mounted on a pedestal. To begin the operation, start the
electric motor 1, and therotary spindle 2 will be driven to rotate. A transition wheel is fixed on therotary spindle 2. The transition wheel may be a gear meshed with a gear at the lower-end of thetransmission 8. Theenergy adjustment flywheel 7 is driven via thetransmission 8 to rotate by the rotation of the transition wheel. When the rotation speed of theenergy adjustment flywheel 7 reaches a set value, under the control of the control device 3, theclutches 5 begin to act and turn into a joined state from a separated state, so that therotary spindle 2 is joined with the liftingroller 4. The liftingroller 4 drives the sucker rod to rise to enter an up stroke. During the up stroke, a part of energy of theenergy adjustment flywheel 7 is consumed, and the rotation speed is lowered. When the sucker rod is raised to a predetermined height, the control device 3 instructs theclutches 5 to separate from each other according to a preset program, so that therotary spindle 2 is separated from the liftingroller 4. Due to the gravity of the sucker rod, the sucker rod falls to enter a down stroke and drags the liftingroller 4 to drive theroller drive wheel 6 to rotate reversely, so that theroller drive wheel 6 drives thefirst drive wheel 903 to rotate. Furthermore, the rotation speed of thefirst drive wheel 903 increases with the increase of the falling speed of the sucker rod. When the rotation speed of thesecond riving wheel 904 is the same as that of thefirst drive wheel 903, due to the overrun clutch, thesecond drive wheel 904 and thefirst drive wheel 903 rotate coaxially at the same speed, further to drive theenergy adjustment flywheel 7 to rotate faster via thetransmission 8, so that the energy is stored. Meanwhile, the speed of free falling of the sucker rod is controlled, so that the sucker rod falls stably and the impact force of the sucker rod is minimized. The stroke length of the flywheel energy storage oil pumping machine provided by this embodiment is not constricted to the structure due to its structural characteristics, so the flywheel energy storage oil pumping machine is applied to not only oil wells of general stroke length but also oil wells of a stroke above 10 m. - Referring to
FIG. 2 , in this embodiment, the energy feedback device 9 is of another structure, and thetransmission 8 will be changed in structure with the structure change of the energy feedback device 9. The energy feedback device 9 comprises arotating shaft 907, afirst drive wheel 903 and asecond drive wheel 904. Thetransmission 8 is a multi-stage transmission, and further has a plurality of connecting ends other than the high-speed end and the low-speed end. The connecting shaft of one of the connecting ends is fixedly connected to therotating shaft 907. Of course, therotating shaft 907 may be a part extending from the connecting end. Therotating shaft 907 is connected to thesecond drive wheel 904 via anenergy feedback clutch 905, wherein, theenergy feedback clutch 905 is a sprag overrun clutch. Thefirst drive wheel 903, thesecond drive wheel 904 and theroller drive wheel 6 are gears. Thefirst drive wheel 903 is positioned between theroller drive wheel 6 and thesecond drive wheel 904 and meshed with both theroller drive wheel 6 and thesecond drive wheel 904. Thefirst drive wheel 903 is fixed on a drive shaft and able to rotate. Theelectric motor 1 is connected to a shaft at the high-speed end of thetransmission 8 via anelectric motor clutch 11. The remaining is the same asEmbodiment 1. - Referring to
FIG. 3 , the energy feedback device 9 comprises adrive shaft 901. Thedrive shaft 901 is connected to afirst drive wheel 903 via anenergy feedback clutch 905. Thetransmission 8 further has a plurality of connecting ends other than the high-speed end and the low-speed end. The connecting shaft of one of the connecting ends is fixedly connected to thedrive shaft 901. Of course, thedrive shaft 901 may be a part extending from the connecting end. Theenergy feedback clutch 905 is an overrun clutch. Thefirst drive wheel 903 is connected to theroller drive wheel 6 via a drivingbelt 906. The remaining is the same asEmbodiment 2. - Referring to
FIG. 4 , the energy feedback device 9 comprises adrive shaft 901, atransition wheel 902 fixedly connected to therotary spindle 2, and afirst drive wheel 903 and asecond drive wheel 904 disposed on thedrive shaft 901. Thefirst drive wheel 903 is connected to thedrive shaft 901 via anenergy feedback clutch 905. Thesecond drive wheel 904 is directly fixed on thedrive shaft 901. Thefirst drive wheel 903 and theroller drive wheel 6 are a pair of meshed gears. Thesecond drive wheel 904 is connected to thetransition wheel 902 via a drivingbelt 906. Theelectric motor 1 is connected to a shaft at the high-speed end of thetransmission 8 via anelectric motor clutch 11. The energy generated during lowering the sucker rod passes through the energy feedback device 9, then passes through therotary spindle 2 and is transferred to theenergy adjustment flywheel 7 via thetransmission 8, to realize the accelerated rotation of theenergy adjustment flywheel 7. The remaining is the same asEmbodiment 1. - Referring to
FIG. 5 , the energy feedback device 9 comprises adrive shaft 901, atransition wheel 902 fixedly connected to therotary spindle 2, and afirst drive wheel 903 and asecond drive wheel 904 disposed on thedrive shaft 901. Thefirst drive wheel 903 is connected to thedrive shaft 901 via anenergy feedback clutch 905. Thesecond drive wheel 904 and thetransition wheel 902 are a pair of meshed gears. Thefirst drive wheel 903 is connected to theroller drive wheel 6 via a drivingbelt 906. The remaining is the same asEmbodiment 4. - Referring to
FIG. 6 , the energy feedback device 9 comprises adrive shaft 901, atransition wheel 902 fixedly connected to therotary spindle 2, and afirst drive wheel 903 and asecond drive wheel 904 disposed on thedrive shaft 901. Thefirst drive wheel 903 is connected to thedrive shaft 901 via anenergy feedback clutch 905. Thesecond drive wheel 904 is directly fixed on thedrive shaft 901. Thefirst drive wheel 903, thesecond drive wheel 904 and theroller drive wheel 6 are gears. Thefirst drive wheel 903 is meshed with theroller drive wheel 6. Thetransition wheel 902 is provided withinternal teeth 902 a. Thesecond drive wheel 904 is meshed with theinternal teeth 902 a. Anelectric motor gear 10, meshed with theinternal teeth 902 a, is mounted on the output shaft of theelectric motor 1 via anelectric motor clutch 11. The remaining is the same asEmbodiment 4. - Referring to
FIG. 7 , theroller drive wheel 6 is a gear. The energy feedback device 9 comprises adrive shaft 901 and anenergy feedback clutch 905 disposed on the drive shaft. Thetransmission 8 at least has a low-speed end and a high-speed end. A connecting shaft at the high-speed end of thetransmission 8 is fixedly connected to thedrive shaft 901. Thetransmission 8 may further have a plurality of connecting ends other than the low-speed end and the high-speed end. Thedrive shaft 901 may be fixedly connected to the connecting shaft of one of the connecting ends. Of course, thedrive shaft 901 may be a part extending from the connecting end. Theenergy feedback clutch 905 is preferably an overrun clutch. When theenergy feedback clutch 905 is an overrun clutch, a first drive wheel, meshed with the roller drive wheel, is mounted on theenergy feedback clutch 905. The remaining is the same as Embodiment 3. - The foregoing description just illustrates the present invention to enable an ordinary person skilled in the art to implement the solutions perfectly, and is not intend to limit the present invention. For those skilled in the art, various modifications may be made as required without creative efforts to these embodiments after reading the specification. However, these uncreative modifications, as long as within the scope defined by the claims of the present invention, shall be protected by the Patent Law.
Claims (10)
1. A flywheel energy storage oil pumping machine, comprising an electric motor (1) and a control device (3), characterized in that the flywheel energy storage oil pumping machine further comprises a rotary spindle (2);
a lifting roller (4), used for raising and lowering a sucker rod, sleeved on the rotary spindle (2), the separation or join of the rotary spindle (2) from/with the lifting roller (4) being realized via clutches (5);
a roller drive wheel (6), fixedly connected with the lifting roller (4) to form a whole;
an energy adjustment flywheel (7);
a transmission (8), a low-speed end of which is connected to the rotary spindle (2) while a high-speed end of which is connected to the energy adjustment flywheel (7);
an energy feedback device (9), used for transferring, to the energy adjustment flywheel (7) via the transmission (8), energy generated during lowering the sucker rod, to realize the accelerated rotation of the energy adjustment flywheel (7) for energy storage, the energy of the energy adjustment flywheel (7) being able to be transferred to the lifting roller (4) for raising the sucker rod when the lifting roller (4) raises the sucker rod.
2. The flywheel energy storage oil pumping machine according to claim 1 , characterized in that the energy feedback device (9) comprises a drive shaft (901) and a first drive wheel (903) and a second drive wheel (904) disposed on the drive shaft (901), the first drive wheel (903) or the second drive wheel (904) being connected to the drive shaft (901) via an energy feedback clutch (905), the first drive wheel (903) and the roller drive wheel (6) being a pair of meshed gears, and the second drive wheel (904) being connected to the transmission (8).
3. The flywheel energy storage oil pumping machine according to claim 1 , characterized in that the energy feedback device (9) comprises a rotating shaft (907), a first drive wheel (903) and a second drive wheel (904), the rotating shaft (907) being connected to the second drive wheel (904) via an energy feedback clutch (905), the first drive wheel (903), the second drive wheel (904) and the roller drive wheels (6) being gears, the first drive wheel (903) being positioned between the roller drive wheel (6) and the second drive wheel (904) and being meshed with both the roller drive wheel (6) and the second drive wheel (904), and the second drive wheel (904) being connected to the transmission (8).
4. The flywheel energy storage oil pumping machine according to claim 1 , characterized in that the energy feedback device (9) comprises a drive shaft (901) and a first drive wheel (903), the drive shaft (901) being connected to the first drive wheel (903) via an energy feedback clutch (905), and the first drive wheel (903) being connected to the roller drive wheel (6) via a driving belt (906).
5. The flywheel energy storage oil pumping machine according to claim 1 , characterized in that the energy feedback device (9) comprises a drive shaft (901), a transition wheel (902) fixedly connected to the rotary spindle (2), and a first drive wheel (903) and a second drive wheel (904) disposed on the drive shaft (901), the first drive wheel (903) or the second drive wheel (904) being connected to the drive shaft (901) via an energy feedback clutch (905), the first drive wheel (903) and the roller drive wheel (6) being a pair of meshed gears, and the second drive wheel (904) being connected to the transition wheel (902) via a driving belt (906).
6. The flywheel energy storage oil pumping machine according to claim 1 , characterized in that the energy feedback device (9) comprises a drive shaft (901), a transition wheel (902) fixedly connected to the rotary spindle (2), and a first drive wheel (903) and a second drive wheel (904) disposed on the drive shaft (901), the first drive wheel (903) or the second drive wheel (904) being connected to the drive shaft (901) via an energy feedback clutch (905), the second drive wheel (904) and the transition wheel (902) being a pair of meshed gears, and the first drive wheel (903) being connected to the roller drive wheel (6) via a driving belt (906).
7. The flywheel energy storage oil pumping machine according to claim 1 , characterized in that the energy feedback device (9) comprises a drive shaft (901), a transition wheel (902) fixedly connected to the rotary spindle (2), and a first drive wheel (903) and a second drive wheel (904) disposed on the drive shaft (901), the first drive wheel (903) or the second drive wheel (904) being connected to the drive shaft (901) via an energy feedback clutch (905), the first drive wheel (903), the second drive wheel (904) and the roller drive wheel (6) being gears, the first drive wheel (903) being meshed with the roller drive wheel (6), the transition wheel (902) being provided with internal teeth (902 a), and the second drive wheel (904) being meshed with the internal teeth (902 a).
8. The flywheel energy storage oil pumping machine according to claim 7 , characterized in that an electric motor gear (10), meshed with the internal teeth (902 a), is mounted on the output shaft of the electric motor (1); or, the output shaft of the electric motor (1) is connected to the transmission (8) via an electric motor clutch (11).
9. The flywheel energy storage oil pumping machine according to claim 2 , characterized in that the energy feedback clutch (905) is an overrun clutch.
10. The flywheel energy storage oil pumping machine according to claim 2 , characterized in that the energy generated during lowering the sucker rod is transferred to the energy adjustment flywheel (7) via the transmission (8) to realize the accelerated rotation of the energy adjustment flywheel (7); or, the energy generated during lowering the sucker rod passes through the rotary spindle (2) first and is then transferred to the energy adjustment flywheel (7) via the transmission (8) to realize the accelerated rotation of the energy adjustment flywheel (7).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210546267.1A CN103032052B (en) | 2012-12-17 | 2012-12-17 | Flywheel energy storage oil pumper |
CN201210546267.1 | 2012-12-17 | ||
PCT/CN2013/089388 WO2014094574A1 (en) | 2012-12-17 | 2013-12-13 | Flywheel energy storage oil pumping machine |
Publications (1)
Publication Number | Publication Date |
---|---|
US20150361776A1 true US20150361776A1 (en) | 2015-12-17 |
Family
ID=48019395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/653,063 Abandoned US20150361776A1 (en) | 2012-12-17 | 2013-12-13 | Flywheel energy storage oil pumping machine |
Country Status (3)
Country | Link |
---|---|
US (1) | US20150361776A1 (en) |
CN (1) | CN103032052B (en) |
WO (1) | WO2014094574A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103032052B (en) * | 2012-12-17 | 2015-08-26 | 邱永安 | Flywheel energy storage oil pumper |
CN114718526A (en) * | 2021-01-05 | 2022-07-08 | 中国石油天然气股份有限公司 | Oil pumping system and period control method and continuity control method thereof |
CN114535323A (en) * | 2022-03-01 | 2022-05-27 | 邢台军华机械科技有限公司 | Low-noise feeding machine for finish rolling |
CN115255692B (en) * | 2022-08-03 | 2024-03-22 | 新疆八一钢铁股份有限公司 | Low-carbon high-Cr alloy billet connection and rolling method |
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US5820350A (en) * | 1995-11-17 | 1998-10-13 | Highland/Corod, Inc. | Method and apparatus for controlling downhole rotary pump used in production of oil wells |
US20010021351A1 (en) * | 2000-03-08 | 2001-09-13 | Erwin Kobensen | Gear unit for a deep-borehole pump |
CN2616679Y (en) * | 2003-03-24 | 2004-05-19 | 陈宗毅 | Flywheel start-assitin pumping unit |
US6749017B1 (en) * | 1999-08-27 | 2004-06-15 | Xu Lu | Full automatic machine for oil extraction |
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US5647208A (en) * | 1996-01-25 | 1997-07-15 | Erry P. Oudang | Hydraulic pumping unit |
CN1346018A (en) * | 2000-09-29 | 2002-04-24 | 胜利石油管理局采油工艺研究院 | Self-starting type oil pumping machine |
CN2904446Y (en) * | 2006-05-09 | 2007-05-23 | 王森茂 | Speed change energy-saving power device suitable for oil pumping unit |
CN200985879Y (en) * | 2006-10-30 | 2007-12-05 | 沈阳市佳鸿机械设备制造厂 | Automatically Energy-saving power equipment of oil pumping machine |
CN101046144A (en) * | 2007-01-15 | 2007-10-03 | 大庆油田有限责任公司 | Method of raising motor efficiency in pumping unit and energy balance device therefor |
RU2410524C2 (en) * | 2009-02-24 | 2011-01-27 | Геннадий Петрович Лопухов | Device of vibroseis impact on oil-and-gas deposit |
CN101852072B (en) * | 2010-05-21 | 2013-01-30 | 江苏盛源燃气动力机械有限公司 | Special intelligent motive power device of oil pumping unit |
CN103032052B (en) * | 2012-12-17 | 2015-08-26 | 邱永安 | Flywheel energy storage oil pumper |
CN202990985U (en) * | 2012-12-17 | 2013-06-12 | 邱永安 | Flywheel energy storage oil pumping machine |
-
2012
- 2012-12-17 CN CN201210546267.1A patent/CN103032052B/en active Active
-
2013
- 2013-12-13 US US14/653,063 patent/US20150361776A1/en not_active Abandoned
- 2013-12-13 WO PCT/CN2013/089388 patent/WO2014094574A1/en active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US5820350A (en) * | 1995-11-17 | 1998-10-13 | Highland/Corod, Inc. | Method and apparatus for controlling downhole rotary pump used in production of oil wells |
US6749017B1 (en) * | 1999-08-27 | 2004-06-15 | Xu Lu | Full automatic machine for oil extraction |
US20010021351A1 (en) * | 2000-03-08 | 2001-09-13 | Erwin Kobensen | Gear unit for a deep-borehole pump |
CN2616679Y (en) * | 2003-03-24 | 2004-05-19 | 陈宗毅 | Flywheel start-assitin pumping unit |
Also Published As
Publication number | Publication date |
---|---|
CN103032052B (en) | 2015-08-26 |
WO2014094574A1 (en) | 2014-06-26 |
CN103032052A (en) | 2013-04-10 |
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