CN111058805A - Electric control reversing oil pumping unit - Google Patents
Electric control reversing oil pumping unit Download PDFInfo
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- CN111058805A CN111058805A CN202010047691.6A CN202010047691A CN111058805A CN 111058805 A CN111058805 A CN 111058805A CN 202010047691 A CN202010047691 A CN 202010047691A CN 111058805 A CN111058805 A CN 111058805A
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- 238000005086 pumping Methods 0.000 title claims abstract description 72
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000001360 synchronised effect Effects 0.000 claims abstract description 15
- 239000000725 suspension Substances 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 230000007246 mechanism Effects 0.000 claims description 19
- 238000004804 winding Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- 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
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
- F04B47/14—Counterbalancing
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- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
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- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to an electric control reversing oil pumping unit which comprises a rack and base system, a power transmission system, a suspension system, a balance system, a lifting system and a control system. The power transmission system comprises a motor and a head sheave assembly which are fixed on the rack, wherein the motor is connected with a head sheave synchronous wheel in the head sheave assembly through a synchronous belt; the suspension system comprises a rope hanger and a load belt, wherein a first end of the load belt is connected with the sucker rod through a first rope hanger, and the load belt is matched with a head sheave belt pulley in a head sheave assembly; the balance system comprises a weight box assembly and a running track, the running track is vertically arranged on the rack, a weight box in the weight box assembly is connected with the second end of the load belt through a second rope suspension device, and the weight box is matched with the running track; the lift system is configured at least for lifting the weight box. The invention has stable and safe operation and low noise; the installation, the overhaul and the maintenance are convenient.
Description
Technical Field
The invention relates to oil field equipment, in particular to an electric control reversing oil pumping unit.
Background
At present, the oil extraction mode is mainly to pump oil from the stratum by surface oil extraction equipment. Among them, the pumping unit system using the motor as a power source is widely used. The power transmission system of one of the pumping unit systems comprises a motor, a speed reducer, a driving chain wheel and a driven chain wheel. The motor is driven to the reducer through a belt and the like, the reducer is connected with a driving chain wheel through a coupler, and the driving chain wheel is connected with a driven chain wheel through a track chain. The power output by the motor at high speed is decelerated by the speed reducer to drive the driving chain wheel to drive the chain. The reversing system comprises special chain links, a reciprocating frame and the like on a track chain, and particularly refers to a patent with the name of chain type pumping unit chain transmission system, wherein the patent is 20092002776.3. The high-speed rotation of the motor drives the driving chain wheel to drive the driven chain wheel after being decelerated, so that the track chain is driven to do annular motion along one direction. The track chain is driven by a special chain link on the track chain to reciprocate up and down in the rack guide rail. One end of the reciprocating frame is connected with a steel wire rope or a belt, and the steel wire rope or the belt drives the polished rod to do reciprocating motion under the driving of the reciprocating frame through a crown block wheel (or a crown block wheel or a roller). The other end of the reciprocating frame drives the balance system. According to the scheme, the pumping system adopts a mechanical reversing system, power transmission is carried out by a chain, the structure is complex, and the operation noise is high.
With the development of electronic power technology, another pumping unit system adopting a frequency converter to realize the reversing of a motor is gradually increased. In this pumping unit system, the aforementioned reversing system is not required, but the reversing is achieved by controlling the electric motor to change the direction of rotation. In such pumping unit systems, the motor is placed on top of the stand, since it is directly connected to the crown wheel or drum. While this configuration simplifies the pumping unit system, a separate crane is required to remove the motor for maintenance when the motor fails. Therefore, the pumping unit system with the structure has higher maintenance cost.
No matter the pumping unit system adopts the reversing of the reciprocating frame or the reversing of the control motor, a counterweight in a balance system needs to be arranged with a separate crane for hoisting, the installation is inconvenient, and the operation risk is high.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides an electric control reversing oil pumping unit which is used for reducing the operation noise and is convenient and safe to install.
In order to solve the technical problem, the invention provides an electric control reversing oil pumping unit which comprises a rack and base system, a power transmission system, a suspension system, a balance system, a lifting system and a control system. The rack and base system comprises a rack and a base, and the rack is fixed on the base; the power transmission system comprises a motor and a head sheave assembly which are fixed on the rack, and the motor is connected with a head sheave synchronous wheel in the head sheave assembly through a synchronous belt; the suspension system comprises a rope hanger and a load belt, wherein a first end of the load belt is connected with the sucker rod through a first rope hanger, and the load belt is matched with a head sheave belt pulley in a head sheave assembly; the balance system comprises a weight box assembly and a running track, the running track is vertically arranged on the rack, a weight box in the weight box assembly is connected with the second end of the load belt through a second rope suspension device, and the weight box is matched with the running track through a roller; the lift system is configured at least for lifting the weight box; the control system is configured to control at least the operation of the motor to effect a pumping process.
Preferably, in the electric control reversing pumping unit, the lifting system comprises a hoisting device, and the hoisting device is connected with the weight box.
Preferably, the hoisting device comprises a synchronous wheel and a roller which are coaxially linked, wherein the synchronous wheel is linked with the motor through a synchronous belt when the weight box is hoisted; the drum is used for winding a steel wire rope or a chain, and the steel wire rope or the chain is connected with the weight box.
Preferably, in the electrically controlled reversing pumping unit, the lifting system comprises an electric hoist including a second motor connected to the lifting device via a transmission mechanism for lifting the weight box and/or the motor. The hoisting device comprises a winding drum which is coaxially connected with the second motor, a steel wire rope or a chain is wound on the winding drum, and the steel wire rope or the chain is connected with the weight box and/or the motor.
Preferably, in the electrically-controlled reversing pumping unit, the head sheave assembly further comprises a head sheave auxiliary wheel, which is engaged with the head sheave pulley and is used for supporting the load belt.
Preferably, in the electrically controlled reversing pumping unit, the control system at least comprises a lifting control module, which is used for controlling the lifting operation of the lifting system.
Preferably, in the electrically controlled reversing pumping unit, the control system at least further comprises a motor reversing module and a data acquisition module, wherein the motor reversing module comprises a frequency converter and a control unit thereof, and is used for realizing the operation and reversing control of a motor in a power transmission system; the data acquisition module comprises a data acquisition unit and a data processing unit and is used for acquiring the running state data of the pumping unit.
Preferably, in the electric control reversing pumping unit, the balance system further comprises a safety protection device, one end of the safety protection device is fixed to the weight box, the other end of the safety protection device is fixed to the frame, and the weight box is prevented from falling off when being disconnected from the load belt.
The safety protection device comprises a steel wire rope and a locking mechanism, one end of the steel wire rope is wound in the locking mechanism, the other end of the steel wire rope is fixed with the weight box, and when the weight box falls accidentally, the locking mechanism locks the steel wire rope.
Preferably, in the electrically controlled reversing pumping unit, two ends of the load belt are respectively connected with the first rope hanger and the second rope hanger through belt connectors.
Preferably, the belt connector comprises a pressing plate and a bottom plate which are respectively arranged on two sides of the load belt, the pressing plate and the bottom plate are fixedly connected through a connecting piece, and the pressing plate is connected with the first rope hanger or the second rope hanger through a connecting bolt.
Furthermore, an anti-skid structure is arranged on one surface of the pressure plate and/or the bottom plate, which is in contact with the load belt.
Preferably, in the electrically controlled reversing pumping unit, the head sheave assembly further comprises a head sheave support and a movable guide rail, and the head sheave support is used for supporting the head sheave assembly; the movable guide rail is arranged on a platform on the rack, and the head sheave support is matched with the movable guide rail through a roller.
Preferably, in the electric control reversing pumping unit, the base includes a base platform for fixing the frame, and a buffer device is installed on the base platform corresponding to the counterweight.
Preferably, in the electrically controlled reversing pumping unit, the base further comprises a base and a moving mechanism, wherein the base is used for supporting the base platform; the moving mechanism is fixed on the base, connected with the base platform and used for moving the position of the base platform on the base.
The motor and the head sheave are driven by the synchronous belt, so that the operation is stable and the noise is low; when the motor is installed, overhauled and maintained and the weight box of the balance system is installed, the self-contained lifting system is provided, an additional crane is not needed, the installation is convenient, and the overhaul is timely; the safety protection device in the balance system can effectively prevent the danger and the loss caused by the sudden falling of the weight box, thereby ensuring the safe operation.
Drawings
Preferred embodiments of the present invention will now be described in further detail with reference to the accompanying drawings, in which:
fig. 1 is a front view of an electrically commutated pumping unit according to an embodiment of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a right side view of FIG. 1;
FIG. 4 is a top view of FIG. 1;
FIG. 5 is a schematic illustration of the construction of a rope hanger and belt connector according to one embodiment of the invention;
FIG. 6 is a side view of FIG. 5;
fig. 7 is a front view of an electrically commutated pumping unit according to another embodiment of the present invention;
FIG. 8 is a left side view of FIG. 7;
FIG. 9 is a right side view of FIG. 7;
FIG. 10 is a top view of FIG. 7;
FIG. 11 is an enlarged view of A in FIG. 9; and
fig. 12 is a functional block diagram of a control system for an electronically controlled commutated pumping unit, in accordance with an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following detailed description, reference is made to the accompanying drawings that form a part hereof and in which is shown by way of illustration specific embodiments of the application. In the drawings, corresponding structures have been omitted from the different views in order to make the different structures in the device clearly visible, and the dimensions of the structures in the drawings are not drawn to scale, but rather to scale, in relation to the actual device. Various specific embodiments of the present application are described in sufficient detail below to enable those skilled in the art to practice the teachings of the present application. It is to be understood that other embodiments may be utilized and structural, logical or electrical changes may be made to the embodiments of the present application.
The invention provides an electric control reversing oil pumping unit which comprises a rack and base system, a power transmission system, a suspension system, a balance system, a lifting system and a control system. The frame and base system comprises a frame and a base, the frame is fixed on the base, and the base is arranged on a solid foundation base and provides stable support for the whole pumping unit system. The power transmission system comprises a motor and a head sheave assembly which are fixed on the frame, and the motor is connected with a head sheave synchronizing wheel in the head sheave assembly through a synchronizing belt. The suspension system comprises a rope hanger and a load belt, two ends of the load belt are respectively connected with a first rope hanger and a second rope hanger, and the first rope hanger is connected with a sucker rod; the load belt is matched with a head sheave belt pulley in the head sheave assembly. The balance system comprises a weight box assembly and a running track, wherein the running track is vertically arranged on the rack, a weight box in the weight box assembly is connected with the second rope suspension device so as to be connected to a load belt, and the weight box is matched with the running track through a roller. The lifting system is at least used for lifting the weight box. The control system is at least used for controlling the operation of the motor to realize the oil pumping process.
The pumping unit provided by the invention realizes the reciprocating motion of the pumping rod by adopting the reversing control of the motor, is provided with the lifting system, solves the problem that a special crane is needed for installing the motor, the weight box and the like, and reduces the noise generated when the pumping unit operates by connecting the pulley of the head sheave through the synchronous belt.
FIG. 1 is a front view of an electrically commutated pumping unit according to one embodiment of the present invention; fig. 2-4 are left, right and top views, respectively. In this embodiment, the electric control reversing pumping unit comprises a frame and base system, a power transmission system, a suspension system, a balance system, a lifting system and a control system. In particular, the rack and base system comprises a rack 11a and a base 12 a. The frame 11a is arranged on the base 12a and provides support for other devices of the pumping unit. In this embodiment, the base 12a includes a base platform 120a for fixing the rack 11a, and a buffer device 121a, such as 4 springs (e.g., 150cm outer diameter by 100cm inner diameter by 230cm high) is mounted on the base platform 120a corresponding to the weight box 51a for buffering the weight box 51a when it falls. In addition, in the present embodiment, the base 12a further includes a base 122a and a moving mechanism 123 a. The base 122a supports the base platform 120a, and the moving mechanism 123a is fixed on the base 122a, connected to the base platform 120a, and configured to move the position of the base platform 120a on the base 122 a. In one embodiment, the moving mechanism 123a is a screw structure, through which the pumping unit can be moved integrally, for moving the pumping unit away from the wellhead integrally when the wellhead is repaired. Because the whole gravity center of the oil pumping unit is inclined downwards, the oil pumping unit moves stably and safely when moving integrally, and the operation is convenient.
The top of the frame 11a forms a platform 10a to which a head sheave assembly is secured. The head sheave assembly comprises a head sheave support 20a, a head sheave synchronizing wheel 21a and a head sheave pulley 22 a. Wherein the head sheave synchronizing wheel 21a and the head sheave pulley 22a are coaxially coupled. In this embodiment, the head sheave assembly further includes a head sheave auxiliary wheel 23a which is engaged with the head sheave pulley 22a for supporting the load belt, so that the diameter of the head sheave pulley 22a can be reduced. In the present embodiment, the head sheave auxiliary wheel 23a is installed coaxially with the synchronizing wheel 33a and the drum 34a in the elevating system for convenience of installation.
The motor 30a is fixed to the frame 11a by a motor fixing base 31 a. The electric motor 30a drives the head sheave synchronizing wheel 21a to rotate through the timing belt 32a, and the head sheave synchronizing wheel 21a drives the head sheave pulley 22a to rotate. In this embodiment, the electric fixing seat 31a is arranged below the head sheave assembly, so that the overall gravity center of the pumping unit is reduced, and the pumping unit is more stable in operation.
In this embodiment, the motor 30a is used as a power component of the lifting system, and the lifting system further includes a lifting device fixed on the platform 10a, which includes a synchronizing wheel 33a and a roller 34a coaxially linked, and the roller 34a is used for winding a wire rope 35a or a chain. Correspondingly, the weight box 51a is provided with a connecting structure, such as a hook 55 a. When the weight box is lifted, the motor 30a is connected with the synchronous wheel 33a through the synchronous belt 36a, and the steel wire rope 35a is connected with the hook 55a on the weight box 51 a. The motor 30a rotates, the timing belt 36a drives the timing wheel 33a to rotate synchronously, and the timing wheel 33a drives the coaxial roller 34a to rotate, so that the weight box 51a can be lifted. In the embodiment, the reversing motor 30a is used as a power part for lifting the weight box 51a, the power output capability of the motor 30a is fully utilized when the motor is idle, and an additional lifting device is not needed, so that the installation and maintenance cost is saved.
The suspension system of the embodiment comprises a load belt 41a and rope suspenders 40a connected to two ends of the load belt 41a, wherein the rope suspenders 40a are connected with a sucker rod through square clips 401a and locking pieces 402 a. In this embodiment, both ends of the load belt 41a are connected to the rope hanger 40a by belt connectors, respectively. As shown in fig. 5-6, the structure of the sling 40a and the belt connector is schematically illustrated. The belt connector comprises a pressure plate 42a and a bottom plate 43a which are respectively arranged on two sides of the load belt, the pressure plate 42a and the bottom plate 43a are fixedly connected through a connecting piece 44a, and the pressure plate 42a is connected with a connecting plate 403 of the rope hanger 40a through a connecting bolt 45 a. The other end of the connecting bolt 45a is connected to the support plate 404 a. An anti-slip structure, such as a step structure 430a on the bottom plate 43a, is provided on the surfaces of the pressure plate 42a and the bottom plate 43a, which are in contact with the load belt 41a, so as to improve the firmness of connection of the load belt 41 a.
The load belt 41a engages a head sheave pulley 22a in the head sheave assembly. The balance system comprises a weight box assembly and a running rail 50a, wherein the running rail 50a is vertically arranged on the rack 11a, and a weight box 51a in the weight box assembly is fixed with the second end of the load belt 41a through a second rope suspension device and a belt connector. The weight box 51a is engaged with the running rail 50a through rollers 52 a. During operation of the pumping unit, the weight box 51a reciprocates up and down along the operation rail 50a by the roller 52 a.
In order to prevent the heavy weight box 51a from falling down to break the wellhead due to unexpected events such as disconnection of the load belt 41a, the balance system further comprises a safety protection device. In this embodiment, the safety shield includes a cable 53a and a locking mechanism 54 a. One end of the wire rope 53a is wound around the lock mechanism 54a, and the other end is fixed to the weight box 51 a. During normal up and down operation of the weight box 51a, the wire 53a extends or retracts from the locking mechanism 54a in accordance with the operation of the weight box 51 a. The lock mechanism 54a is similar to the structure of a seat belt of a vehicle, and senses whether the wire 53a is normally operated. When the weight box falls accidentally, the steel wire rope 53a runs with the weight box 51a at an acceleration speed exceeding the normal speed per hour, the locking mechanism 54a is triggered to lock the steel wire rope 53a, and the weight box 51a is pulled, so that the safety protection effect is achieved.
Fig. 7 is a front view of an electrically commutated pumping unit according to another embodiment of the present invention; fig. 8-10 are left, right and top views, respectively. The difference from the previous embodiment is that in this embodiment, the rack and base system comprises an upper platform 10b, a rack 11b and a base 12b (see fig. 10). The frame 11b is arranged on the base 12b and provides support for other devices of the pumping unit. The frame 11b includes a bracket 111b for supporting the power train and a bracket 112b for supporting the upper platform 10. In order to clearly show other structures of the present embodiment, fig. 7-9 do not show the base 12b and the structures of the buffer device thereon, and please refer to the previous embodiment for specific structure.
The head sheave assembly comprises a head sheave support 20b, a head sheave synchronizing wheel 21b and a head sheave pulley 22 b. In this embodiment, the head sheave assembly further includes a moving guide rail 23 b. A moving rail 23b is installed on the upper platform 10b, and the head sheave support 20b is movable on the moving rail 23b by means of rollers 24 b.
As shown in fig. 11, the moving rail 23b is a laid-down U-shaped rail, and four rollers 24b are provided at the bottom of the head sheave support 20b to be engaged with the U-shaped rail. When the wellhead needs to be overhauled, the movable head sheave support 20b moves rightwards in the front view, so that the wellhead position is made available for overhauling.
The motor 30b is fixed on the frame 111b through a motor fixing seat 31b, and the motor 30b and the head sheave synchronizing wheel 21b are connected through a timing belt 32 b. In the present embodiment, the motorized fixing base 31b is disposed above the head sheave assembly. An electric block 6b is fixed above the motor 30b as the lifting system of the present embodiment. The electric hoist 6b includes therein a second electric motor as the power unit and a drum as a hoisting device. The second motor is coaxially connected with the winding drum through a transmission mechanism, a steel wire rope 61b or a chain is wound on the winding drum, and as shown in fig. 7, a connecting structure, such as a hook 33b, is arranged on the motor 30 b. Because the position of the motor 30b is high, when the motor 30b is installed, the wire rope 61b is hung on the hook 33b, the second motor in the electric hoist 6b is started, the motor 30b can be lifted, and the installation of the motor 30b is convenient. In addition, the weight box is also provided with a connecting structure, for example, a hook 55b, and when the weight box 51b needs to be lifted, the weight box 51b can be lifted by hanging the wire rope 61b on the hook 55b and starting the electric hoist 6 b. The embodiment adopts the common electric hoist as a lifting system, so that the electric motor can be lifted, and the weight box can also be lifted, thereby saving an additional lifting device.
Other structures of this embodiment are the same as those of the embodiment in fig. 1 to 4, and are not described herein again.
The invention adopts the synchronous belt for linkage, the operation is stable, the noise is low, so the noise of the whole system is very low when in work, compared with the chain transmission, the invention effectively reduces the noise generated when the system is operated.
Fig. 12 is a schematic block diagram of a pumping unit control system. The control system mainly comprises a motor reversing module 70, a lifting control module 71 and a data acquisition module 72, wherein the motor reversing module 70 comprises a frequency converter 701 and a control unit 702 thereof, and is used for realizing the control of the rotating speed, reversing and the like of the main motor. The lifting control module 71 is used for controlling the lifting of the lifting system, and is slightly different according to different power components in the lifting system. For example, when the lifting system adopts an electric hoist, the lifting control module 71 includes a power circuit unit 710 and a lifting control unit 711, the power circuit unit 710 includes a rectifying circuit, an inverter circuit, etc., the three-phase alternating current is connected to a motor in the electric hoist after passing through the rectifying circuit and the inverter circuit, the lifting control unit 711 is respectively connected to the rectifying circuit, the inverter circuit and the electric hoist motor, receives a feedback signal of the electric hoist motor, and controls the electric hoist motor by adopting speed control, torque control, PID control, etc. If the lifting system adopts the motor 30a in the power transmission system, the lifting control module 71 is a motor control unit, and can be combined with the motor reversing module 70 for saving cost, and the reversing control and the lifting control are realized by setting different control modes. Specifically, those skilled in the art may adopt different control modes according to actual needs, which are not described in detail herein.
The data acquisition module 72 includes a data acquisition unit 720 and a data processing unit 721, and is configured to acquire the operating status data of the pumping unit. The data acquisition unit 720 includes, for example, various sensors and various electric signal acquisition circuits, such as a temperature sensor for detecting the temperature of the main motor, a vibration sensor for detecting the vibration of the frame, and a sensor provided at the rope hanger (for acquiring the displacement and load of the pumping unit, so that the indicator diagram of the oil well can be acquired); the electrical signal acquisition circuits, for example, the motor supply circuits, acquire electrical parameters from them, including, for example, the three-phase voltages and currents, for obtaining active power, reactive power and electrical energy.
In specific implementation, the control system can be realized by adopting an industrial controller, such as a PLC (programmable logic controller) and a single chip microcomputer, various electronic power elements are made into a control cabinet, and an operation interface is matched to facilitate control, such as a display screen, a control panel and the like.
The electric control reversing oil pumping unit provided by the invention realizes the reciprocating motion of the oil pumping unit by adopting the motor for reversing, adopts the synchronous belt as a transmission part of the motor and the head sheave, and has the advantages of high transmission efficiency, low loss and low noise. The counterweight box has the advantages of safety protection device, safe and stable operation, simple structure and low maintenance amount, and facilitates the hoisting and installation of the counterweight box through the lifting system.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the scope of the present invention, and therefore, all equivalent technical solutions should fall within the scope of the present invention.
Claims (16)
1. An electrically controlled reversing pumping unit, comprising:
the rack and base system comprises a rack and a base, wherein the rack is fixed on the base;
the power transmission system comprises a motor and a head sheave assembly which are fixed on the frame, and the motor is connected with a head sheave synchronous wheel in the head sheave assembly through a synchronous belt;
the suspension system comprises a rope hanger and a load belt, wherein the first end of the load belt is connected with the sucker rod through the first rope hanger, and the load belt is matched with a head sheave belt pulley in a head sheave assembly;
the balance system comprises a weight box assembly and a running track, the running track is vertically arranged on the rack, a weight box in the weight box assembly is connected with the second end of the load belt through a second rope suspension device, and the weight box is matched with the running track through a roller;
a lift system configured for at least lifting the weight box; and
a control system configured to control at least operation of the motor to effect a pumping procedure.
2. The electrically controlled reversing pumping unit of claim 1, wherein the lift system comprises a hoist coupled to the weight box.
3. The electrically controlled reversing pumping unit of claim 2, wherein the lifting device comprises a synchronizing wheel and a roller which are coaxially linked, wherein the synchronizing wheel is linked with the motor through a synchronizing belt when the weight box is lifted; the drum is used for winding a steel wire rope or a chain, and the steel wire rope or the chain is connected with the weight box.
4. The electronically controlled commutated pumping unit of claim 2, wherein the lift system comprises an electric hoist including a second motor coupled to the lifting device via a transmission for lifting the weight box and/or the motor.
5. The electrically controlled commutated pumping unit according to claim 4, wherein the hoisting device comprises a drum coaxially connected to the second motor, the drum being wound with a wire rope or chain connected to the weight box and/or the motor.
6. The electronically controlled commutated pumping unit of claim 1, wherein the head sheave assembly further comprises a head sheave auxiliary wheel that engages the head sheave pulley for supporting the load belt.
7. The electrically controlled commutated pumping unit of claim 1, wherein the control system comprises at least: and the lifting control module is used for controlling the lifting operation of the lifting system.
8. The electrically controlled commutated pumping unit of claim 7, wherein the control system further comprises at least:
the motor reversing module comprises a frequency converter and a control unit thereof and is used for realizing the operation and reversing control of a motor in the power transmission system; and
and the data acquisition module comprises a data acquisition unit and a data processing unit and is used for acquiring the running state data of the pumping unit.
9. The electronically controlled reversing pumping unit of claim 1, wherein the balance system further comprises a safety guard having one end secured to the weight box and the other end secured to the frame to prevent the weight box from falling when the weight box is disconnected from the load belt.
10. The electrically controlled reversing pumping unit according to claim 9, wherein the safety device comprises a steel wire rope and a locking mechanism, one end of the steel wire rope is wound in the locking mechanism, the other end of the steel wire rope is fixed with the weight box, and the locking mechanism locks the steel wire rope when the weight box falls accidentally.
11. The electrically controlled reversing pumping unit of claim 1, wherein the two ends of the load belt are connected to the first and second rope hangers via belt connectors, respectively.
12. The electrically controlled reversing pumping unit of claim 11, wherein the belt connector comprises a pressure plate and a bottom plate separately disposed on two sides of the load belt, the pressure plate and the bottom plate are fixedly connected by a connecting member, and the pressure plate is connected with the first rope hanger or the second rope hanger by a connecting bolt.
13. The electrically controlled reversing pumping unit of claim 12, wherein an anti-skid structure is provided on the pressure plate and/or the bottom plate on the side that contacts the load belt.
14. The electronically controlled commutated pumping unit of claim 1, wherein the head sheave assembly further comprises:
a head sheave support for supporting a head sheave assembly; and
and the movable guide rail is arranged on a platform on the rack, and the head sheave support is matched with the movable guide rail through a roller.
15. The electrically controlled commutated pumping unit of claim 1, wherein the base comprises a base platform for securing the frame; and a buffer device is arranged on the base platform corresponding to the weight box.
16. The electrically controlled commutated pumping unit of claim 15, wherein the base further comprises:
a base for supporting the base platform; and
and the moving mechanism is fixed on the base, is connected with the base platform and is used for moving the position of the base platform on the base.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117211735A (en) * | 2023-09-12 | 2023-12-12 | 大庆石油管理局有限公司 | Tower type pumping unit balance weight slow-release device |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2325554Y (en) * | 1997-12-19 | 1999-06-23 | 阎书文 | Friction type direction changeable oil well pump |
| CN2766035Y (en) * | 2004-12-18 | 2006-03-22 | 中国石化集团胜利石油管理局总机械厂 | Belt and steel wire composite pumping unit |
| CN101294486A (en) * | 2008-06-19 | 2008-10-29 | 黑龙江省万意达钢结构工程有限公司 | Vertical energy-saving oil pumping unit |
| CN101413387A (en) * | 2008-12-03 | 2009-04-22 | 毛宏伟 | Tower rack type combined transmission oil pumping machine |
| CN201293069Y (en) * | 2008-11-28 | 2009-08-19 | 贵州航天林泉电机有限公司 | Belt connected pressure plate apparatus |
| CN101538998A (en) * | 2008-03-21 | 2009-09-23 | 宋志亮 | Improved automatic control hydraulic drive pumping unit |
| CN201428432Y (en) * | 2009-06-20 | 2010-03-24 | 胜利油田孚瑞特石油装备有限责任公司 | Chain transmission system for chain type pumping units |
| CN101718186A (en) * | 2008-10-09 | 2010-06-02 | 曹沛红 | Hydraulically-controlled linear oil pumping unit |
| CN201826815U (en) * | 2010-09-09 | 2011-05-11 | 高智 | Oil extractor for super-deep well |
| CN102182427A (en) * | 2011-03-29 | 2011-09-14 | 山东创新石油技术有限公司 | Numerically-controlled distance-measuring brake drum oil pumping unit |
| CN202360061U (en) * | 2011-10-12 | 2012-08-01 | 河南长江石油机械有限公司 | Underneath pumping unit |
| CN102817587A (en) * | 2011-11-15 | 2012-12-12 | 中国石油大学(华东) | Direct drive motor pumping unit |
| CN202811986U (en) * | 2012-07-05 | 2013-03-20 | 濮阳市信宇石油机械化工有限公司 | Belt tip connecting device |
| CN203412551U (en) * | 2013-06-05 | 2014-01-29 | 胜利油田胜利动力机械集团有限公司 | Intelligent mute type oil sucking machine |
| CN104234670A (en) * | 2014-09-17 | 2014-12-24 | 西安航空动力股份有限公司 | Tower linear pumping unit |
| CN204226586U (en) * | 2015-01-29 | 2015-03-25 | 大庆丹诺石油科技开发有限公司 | A kind of without slide beam intelligent oil pumping machine belt fixture |
| CN204691739U (en) * | 2015-06-05 | 2015-10-07 | 河南南阳市油田机械制造有限公司 | A kind of pylon oil pumper |
| CN105019866A (en) * | 2015-07-23 | 2015-11-04 | 浙江西传电气科技有限公司 | High-efficiency direct drive type pumping unit with single movable pulley and single fixed pulley |
| CN206539334U (en) * | 2017-02-28 | 2017-10-03 | 中国石油大学(华东) | Vertical ball-screw twin-well oil-pumping machine |
| CN209430173U (en) * | 2018-12-09 | 2019-09-24 | 杭州中油智井装备科技有限公司 | A kind of force measurement type Multifunctional tower type pumping unit |
| CN212479177U (en) * | 2020-01-16 | 2021-02-05 | 山东天工石油装备有限公司 | Electric control reversing oil pumping unit |
-
2020
- 2020-01-16 CN CN202010047691.6A patent/CN111058805B/en active Active
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2325554Y (en) * | 1997-12-19 | 1999-06-23 | 阎书文 | Friction type direction changeable oil well pump |
| CN2766035Y (en) * | 2004-12-18 | 2006-03-22 | 中国石化集团胜利石油管理局总机械厂 | Belt and steel wire composite pumping unit |
| CN101538998A (en) * | 2008-03-21 | 2009-09-23 | 宋志亮 | Improved automatic control hydraulic drive pumping unit |
| CN101294486A (en) * | 2008-06-19 | 2008-10-29 | 黑龙江省万意达钢结构工程有限公司 | Vertical energy-saving oil pumping unit |
| CN101718186A (en) * | 2008-10-09 | 2010-06-02 | 曹沛红 | Hydraulically-controlled linear oil pumping unit |
| CN201293069Y (en) * | 2008-11-28 | 2009-08-19 | 贵州航天林泉电机有限公司 | Belt connected pressure plate apparatus |
| CN101413387A (en) * | 2008-12-03 | 2009-04-22 | 毛宏伟 | Tower rack type combined transmission oil pumping machine |
| CN201428432Y (en) * | 2009-06-20 | 2010-03-24 | 胜利油田孚瑞特石油装备有限责任公司 | Chain transmission system for chain type pumping units |
| CN201826815U (en) * | 2010-09-09 | 2011-05-11 | 高智 | Oil extractor for super-deep well |
| CN102182427A (en) * | 2011-03-29 | 2011-09-14 | 山东创新石油技术有限公司 | Numerically-controlled distance-measuring brake drum oil pumping unit |
| CN202360061U (en) * | 2011-10-12 | 2012-08-01 | 河南长江石油机械有限公司 | Underneath pumping unit |
| CN102817587A (en) * | 2011-11-15 | 2012-12-12 | 中国石油大学(华东) | Direct drive motor pumping unit |
| CN202811986U (en) * | 2012-07-05 | 2013-03-20 | 濮阳市信宇石油机械化工有限公司 | Belt tip connecting device |
| CN203412551U (en) * | 2013-06-05 | 2014-01-29 | 胜利油田胜利动力机械集团有限公司 | Intelligent mute type oil sucking machine |
| CN104234670A (en) * | 2014-09-17 | 2014-12-24 | 西安航空动力股份有限公司 | Tower linear pumping unit |
| CN204226586U (en) * | 2015-01-29 | 2015-03-25 | 大庆丹诺石油科技开发有限公司 | A kind of without slide beam intelligent oil pumping machine belt fixture |
| CN204691739U (en) * | 2015-06-05 | 2015-10-07 | 河南南阳市油田机械制造有限公司 | A kind of pylon oil pumper |
| CN105019866A (en) * | 2015-07-23 | 2015-11-04 | 浙江西传电气科技有限公司 | High-efficiency direct drive type pumping unit with single movable pulley and single fixed pulley |
| CN206539334U (en) * | 2017-02-28 | 2017-10-03 | 中国石油大学(华东) | Vertical ball-screw twin-well oil-pumping machine |
| CN209430173U (en) * | 2018-12-09 | 2019-09-24 | 杭州中油智井装备科技有限公司 | A kind of force measurement type Multifunctional tower type pumping unit |
| CN212479177U (en) * | 2020-01-16 | 2021-02-05 | 山东天工石油装备有限公司 | Electric control reversing oil pumping unit |
Non-Patent Citations (2)
| Title |
|---|
| （西德）阿尔坦尼狄克等，袁绍渊等译: "机械工人基础知识", vol. 1, 30 June 1981, 机械工业出版社, pages: 313 * |
| 李继志主编: "石油钻采机械概论", vol. 2, 30 June 2011, 石油大学出版社, pages: 312 - 314 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117211735A (en) * | 2023-09-12 | 2023-12-12 | 大庆石油管理局有限公司 | Tower type pumping unit balance weight slow-release device |
| CN117211735B (en) * | 2023-09-12 | 2024-04-19 | 大庆石油管理局有限公司 | Tower type pumping unit balance weight slow-release device |
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