CN111472726A - Intelligent oil pumping unit for yield detection - Google Patents

Abstract

The invention provides an intelligent oil pumping unit for yield detection, which is arranged at an oil well and performs reciprocating motion through a traction oil well pump so as to realize oil pumping, and is characterized by comprising the following components: the oil pumping device comprises an oil pumping actuating device and an oil pumping control device, wherein the oil pumping actuating device is provided with an oil pumping transmission mechanism and a driving motor, and the oil pumping control device is provided with an operating terminal, a frequency converter and a controller. And measuring by a frequency converter to obtain the current electrical parameter flowing through the driving motor, and calculating according to the current electrical parameter, the fixed electrical parameter and the transmission parameter to obtain the current indicator diagram. And further, calculating according to the pulse signal sent by the origin detection module to obtain the current stroke frequency, and calculating based on the current indicator diagram and the volume of the oil well pump to obtain the oil pumping efficiency of the oil well pump. And then, calculating to obtain the daily output of the oil well pump according to the obtained current stroke frequency and the oil pumping efficiency. And displaying the current indicator diagram, the current stroke frequency, the oil pumping efficiency and the daily output in the operation terminal.

Description

Intelligent oil pumping unit for yield detection

Technical Field

The invention belongs to the technical field of pumping unit equipment, and particularly relates to an intelligent pumping unit for yield detection.

Background

The common oil pumping unit is traditional oil pumping equipment widely applied to oil fields and is usually directly driven by a common alternating current asynchronous motor. The crank drives the walking beam by a balance weight to drive the oil well pump to do reciprocating motion in fixed period, so as to send the oil under the oil well to the ground.

The pumping unit mainly comprises an action device and a control device. At present, a control device of the pumping unit has a single function and only has energy supply for detecting and adjusting the stroke frequency of the pumping unit or only detecting and adjusting the balance of the pumping unit. In order to achieve the purposes of stroke frequency detection, pump efficiency detection and yield detection, a plurality of devices are required to be used for detection respectively, the devices are distributed on the site of the pumping well more and are complex to install, unified management and maintenance are not convenient, and the production cost is greatly increased. Therefore, the oil pumping unit which is simple in structure, reasonable in design and convenient to install and arrange is lacking at present, intelligent control is carried out on the oil well pump when the stroke frequency, the pump efficiency and the yield are detected, the fault operation of the oil pumping unit is avoided, the high efficiency, the low power consumption and the safe operation of the oil pumping unit are guaranteed, and the energy waste and the equipment loss are reduced.

Disclosure of Invention

In order to solve the problems, the invention provides an intelligent oil pumping unit for yield detection, which is arranged at an oil well and can automatically detect the yield of an oil well pump, and the invention adopts the following technical scheme:

the invention provides an intelligent oil pumping unit for yield detection, which is characterized by comprising the following components: the oil pumping device is provided with an oil pumping transmission mechanism and a driving motor, the oil pumping transmission mechanism is connected with the oil well pump and is used for controlling the oil well pump to reciprocate so as to realize oil pumping, the oil pumping transmission mechanism comprises a crank, a crank support and an origin detection mechanism, the crank is connected with the crank support and can perform circular motion around a connecting point of the crank and the crank support, the origin detection module is arranged on the crank support and is used for sending a pulse signal when the crank rotates to pass through the position of the origin detection module, and the driving motor is connected with the oil pumping transmission mechanism and is used for driving the oil pumping transmission mechanism to reciprocate; the oil pumping control device comprises an operation terminal, a frequency converter and a controller, wherein the operation terminal is provided with a picture storage part, a display part, an operation side communication part and an operation side control part, the frequency converter is electrically connected with a driving motor, the frequency converter is provided with a measuring part, a frequency conversion side communication part and a frequency conversion side control part, the controller is in communication connection with the frequency converter and the operation terminal, the oil pumping control device is provided with a indicator diagram storage part, a parameter storage part, a current indicator diagram generation and acquisition part, a stroke frequency acquisition part, a pump efficiency calculation part, a yield calculation part, a control side communication part and a control side control part, the picture storage part stores a state display picture, the state display picture is provided with a yield display area, the indicator diagram storage part stores a corresponding indicator diagram under the normal working state of an actuating device as a reference indicator diagram, and the parameter storage part stores fixed electric parameters of the driving, The measuring part is used for measuring and obtaining the current value, the current voltage value, the current frequency value and the current power factor value of the current flowing through the driving motor as current electrical parameters, the frequency converter communication part sends the electrical parameters to the control side communication part, the current indicator diagram generation obtaining part calculates and obtains an indicator diagram in the current state as a current indicator diagram according to the fixed electrical parameters, the transmission parameters and the current electrical parameters, the control side control part generates corresponding adjusting frequency according to the current indicator diagram and the reference indicator diagram, the control side communication part is further controlled to send the adjusting frequency as adjusting information to the frequency conversion side communication part, once the frequency conversion side communication part receives the adjusting information, the frequency conversion part controls the frequency conversion part to adjust the frequency of the current flowing through the driving motor according to the adjusting signal, thereby adjusting the rotation frequency of the driving motor and realizing the adjustment of the pumping efficiency of the pumping action device, the origin detection module is in communication connection with the controller, the control side communication part receives the pulse signal sent by the origin detection module, the stroke frequency acquisition part calculates according to the received pulse signal and the time of receiving the pulse signal so as to obtain the reciprocating times of the oil pump per minute as the current stroke frequency, the pump efficiency calculation part calculates the percentage of the loading stroke of the oil pump in one reciprocating stroke as the total stroke according to the obtained current indicator diagram as the pumping efficiency, the yield calculation part calculates according to the obtained pumping efficiency and the stored volume of the oil pump so as to obtain the pumping quantity of the oil pump in one reciprocating stroke corresponding to the current indicator diagram, and further calculates according to the pumping quantity and the current stroke frequency so as to obtain the daily yield of the oil pump, upon obtaining the daily output, the control-side control section controls the control-side communication section to transmit the daily output to the operation terminal as output information, and the operation-side control section controls the display section to display the status display screen and the daily output in the output display area of the screen, based on the output information received by the operation-side communication section.

Action and Effect of the invention

According to the intelligent oil pumping unit for yield detection, voltage, current, frequency and power factors of current flowing through a driving motor are obtained through measurement of a frequency converter and serve as current electrical parameters, and then after the fact that an oil well pump completes one stroke is detected, a indicator diagram corresponding to the current stroke of the oil well pump is obtained through calculation according to the current electrical parameters, fixed electrical parameters and transmission parameters and serves as a current indicator diagram. And further, calculating according to the pulse signal sent by the origin detection module to obtain the current stroke frequency, and calculating based on the current indicator diagram and the volume of the oil well pump to obtain the oil pumping efficiency of the oil well pump. And then, calculating to obtain the daily output of the oil well pump according to the obtained current stroke frequency and the oil pumping efficiency. The current indicator diagram, the current stroke frequency, the oil pumping efficiency and the daily output are obtained and then displayed in the operation terminal, so that a worker can simply read the current state of the oil pumping unit through the operation terminal, quickly know the output of the oil pumping unit, facilitate arrangement of a production plan of an oil well of the oil pumping unit and improve the production efficiency. Thereby adjust driving motor's frequency and control the oil pumping efficiency of oil-well pump based on present indicator diagram, thereby the frequency of the electric current of adjusting driving motor is generated to the skew after comparing according to present indicator diagram and benchmark indicator diagram, finally realizes the regulation to oil-well pump efficiency.

Drawings

FIG. 1 is a schematic diagram of an intelligent pumping unit for yield detection according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an oil pumping action device according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an oil pumping control device according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a frequency converter according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an operation terminal of the embodiment of the present invention;

FIG. 6 is a status display screen of an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a controller according to an embodiment of the present invention;

FIG. 8 is a schematic diagram illustrating a comparison between a current indicator diagram and a reference indicator diagram according to an embodiment of the present invention;

FIG. 9 is a flow chart of the oil pumping process of the intelligent oil pumping unit for yield detection according to the embodiment of the present invention;

FIG. 10 is a flow chart of the fault handling and alarm process in the event of a failure in the pumping process in an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made in conjunction with the accompanying drawings.

As an embodiment, the present invention provides an intelligent oil pumping unit for detecting yield, which is disposed at an oil well and performs reciprocating motion by drawing an oil well pump to pump oil, and is characterized by comprising: the oil pumping device is provided with an oil pumping transmission mechanism and a driving motor, the oil pumping transmission mechanism is connected with the oil well pump and is used for controlling the oil well pump to reciprocate so as to realize oil pumping, the oil pumping transmission mechanism comprises a crank, a crank support and an origin detection mechanism, the crank is connected with the crank support and can perform circular motion around a connecting point of the crank and the crank support, the origin detection module is arranged on the crank support and is used for sending a pulse signal when the crank rotates to pass through the position of the origin detection module, and the driving motor is connected with the oil pumping transmission mechanism and is used for driving the oil pumping transmission mechanism to reciprocate; the oil pumping control device comprises an operation terminal, a frequency converter and a controller, wherein the operation terminal is provided with a picture storage part, a display part, an operation side communication part and an operation side control part, the frequency converter is electrically connected with a driving motor, the frequency converter is provided with a measuring part, a frequency conversion side communication part and a frequency conversion side control part, the controller is in communication connection with the frequency converter and the operation terminal, the oil pumping control device is provided with a indicator diagram storage part, a parameter storage part, a current indicator diagram generation and acquisition part, a stroke frequency acquisition part, a pump efficiency calculation part, a yield calculation part, a control side communication part and a control side control part, the picture storage part stores a state display picture, the state display picture is provided with a yield display area, the indicator diagram storage part stores a corresponding indicator diagram under the normal working state of an actuating device as a reference indicator diagram, and the parameter storage part stores fixed electric parameters of the driving, The measuring part is used for measuring and obtaining the current value, the current voltage value, the current frequency value and the current power factor value of the current flowing through the driving motor as current electrical parameters, the frequency converter communication part sends the electrical parameters to the control side communication part, the current indicator diagram generation obtaining part calculates and obtains an indicator diagram in the current state as a current indicator diagram according to the fixed electrical parameters, the transmission parameters and the current electrical parameters, the control side control part generates corresponding adjusting frequency according to the current indicator diagram and the reference indicator diagram, the control side communication part is further controlled to send the adjusting frequency as adjusting information to the frequency conversion side communication part, once the frequency conversion side communication part receives the adjusting information, the frequency conversion part controls the frequency conversion part to adjust the frequency of the current flowing through the driving motor according to the adjusting signal, thereby adjusting the rotation frequency of the driving motor and realizing the adjustment of the pumping efficiency of the pumping action device, the origin detection module is in communication connection with the controller, the control side communication part receives the pulse signal sent by the origin detection module, the stroke frequency acquisition part calculates according to the received pulse signal and the time of receiving the pulse signal so as to obtain the reciprocating times of the oil pump per minute as the current stroke frequency, the pump efficiency calculation part calculates the percentage of the loading stroke of the oil pump in one reciprocating stroke as the total stroke according to the obtained current indicator diagram as the pumping efficiency, the yield calculation part calculates according to the obtained pumping efficiency and the stored volume of the oil pump so as to obtain the pumping quantity of the oil pump in one reciprocating stroke corresponding to the current indicator diagram, and further calculates according to the pumping quantity and the current stroke frequency so as to obtain the daily yield of the oil pump, upon obtaining the daily output, the control-side control section controls the control-side communication section to transmit the daily output to the operation terminal as output information, and the operation-side control section controls the display section to display the status display screen and the daily output in the output display area of the screen, based on the output information received by the operation-side communication section.

In the above-described embodiment, the control unit may further include an offset determination unit that compares the current indicator diagram with the reference indicator diagram, determines whether or not the current indicator diagram is offset from the reference indicator diagram, and if so, the control-side control unit may generate the adjustment frequency based on the offset.

In the above-described embodiment, the state display screen may further include a stroke number display area, a pump efficiency display area, and an indicator diagram display area, wherein the control-side control unit controls the control-side communication unit to transmit the current stroke number as stroke number information to the operation-side communication unit when the current stroke number is acquired, controls the control-side communication unit to transmit the pumping efficiency as pump efficiency information to the operation-side communication unit when the pumping efficiency is acquired, controls the control-side communication unit to transmit the current indicator diagram as indicator diagram information to the operation-side communication unit when the current indicator diagram is acquired, and controls the display unit to display the corresponding current stroke number display area, pump efficiency display area, and indicator diagram display area in the state display screen when the stroke number information, pump efficiency information, and indicator diagram information are received by the operation-side communication unit, Pumping efficiency and current indicator diagram.

In the above-described embodiment, the state display screen may further include a start button and a stop button, the variable frequency side control unit may further include a start frequency storage unit in which a preset start frequency is stored, the operation side control unit may control the operation side communication unit to transmit a start signal to the controller when a worker presses the start button, the control side communication unit may transmit the start signal to the variable frequency when the control side communication unit receives the stop signal, the variable frequency side control unit may control the variable frequency unit to convert the current flowing through the drive motor so that the frequency of the current becomes equal to the start frequency based on the start frequency when the variable frequency side communication unit receives the start signal, the operation side control unit may control the operation side communication unit to transmit a stop signal to the controller when the worker presses the stop button, and the control side communication unit may receive the stop signal, the control side communication part sends the stop signal to the frequency converter, and once the frequency conversion side communication part receives the stop signal, the frequency conversion side control part controls the frequency conversion part to carry out frequency conversion on the current flowing through the driving motor so that the frequency of the current gradually becomes zero, thereby controlling the oil pumping action device to stop working.

In the above embodiment, the oil pumping transmission mechanism may further include a walking beam support, a walking beam, a horse head, and a decelerator, wherein the walking beam support is fixedly installed on the ground and used for installing the walking beam, the walking beam reciprocates with a connection point of the walking beam and the walking beam support as a pivot, the walking beam is connected with the crank and reciprocates along with a circular motion of the crank, the horse head is fixedly installed on the walking beam and reciprocates together with the walking beam, one end of the decelerator is connected with the driving motor, and the other end of the decelerator is connected with the crank and used for transmitting a torque of the driving motor and reducing a rotation speed, and the transmission parameters include a transmission ratio of the decelerator, a rotation radius of the crank, a rotation radius of the walking beam, and a vertical stroke of the horse head.

In the above-described embodiment, the fixed electrical parameter may include a rated voltage, a rated frequency, a rated current, the number of poles, a rated power, and a rated rotational speed of the drive motor.

In the above-described embodiment, the control-side communication unit may be configured to generate and acquire the current indicator diagram when receiving the pulse signal transmitted by the origin detection module.

In the above embodiment, the indicator diagram storage unit may further store a plurality of serious fault indicator diagrams corresponding to a serious fault occurring in the pumping process and corresponding fault names, the controller may further include a fault determination unit and an alarm unit, the input display screen further includes a fault display area, the control-side control unit may control the fault determination unit to determine whether any one of the current indicator diagram and the serious fault indicator diagram is the same or not when the current indicator diagram generation acquisition unit acquires the current indicator diagram, and if so, the control-side control unit may control the control-side communication unit to transmit a serious fault signal to the frequency conversion-side communication unit and simultaneously control the alarm unit to give an alarm and control the control-side communication unit to transmit the fault name corresponding to the serious fault indicator diagram which is the same as the current indicator diagram to the operation terminal as the fault information, when the frequency conversion side communication part receives a serious fault signal, the frequency conversion side control part controls the frequency conversion part to convert the frequency of the current flowing through the driving motor so that the frequency of the current gradually becomes zero, thereby controlling the oil pumping action device to stop working, and when the operation side communication part receives fault information, the operation side control part controls the display part to display a corresponding fault name in a fault display area of an input display picture.

In the above-described embodiment, the controller may further include a failure determination unit, the input display screen further includes a failure display area, the parameter storage unit further stores a control frequency corresponding to each of the minor failure indicator diagrams, the control-side control unit controls the failure determination unit to determine whether any one of the current indicator diagram and the minor failure indicator diagram is the same when the current indicator diagram generation acquisition unit acquires the current indicator diagram, and if so, the control-side control unit controls the control-side communication unit to transmit the control frequency corresponding to the minor failure indicator diagram as minor failure information to the inverter-side communication unit and controls the control-side communication unit to transmit the failure name corresponding to the minor failure indicator diagram which is the same as the current indicator diagram as a failure signal The information is sent to the operation terminal, once the frequency conversion side communication part receives the slight fault information, the frequency conversion side control part controls the frequency conversion part to convert the frequency of the current flowing through the driving motor according to the control frequency, and once the operation side communication part receives the fault information, the operation side control part controls the display part to display the corresponding fault name in the fault display area of the input display picture.

< example >

Fig. 1 is a schematic view of the structure of an intelligent oil pumping unit for yield detection according to an embodiment of the present invention.

As shown in fig. 1, the present embodiment provides an intelligent pumping unit 100 for yield detection, which is installed at an oil well and can draw an oil pump 200 to pump oil according to the pump efficiency set by a worker.

The intelligent oil pumping unit 100 for yield detection comprises an oil pumping action device 1 and an oil pumping control device 2.

One end of the oil pumping action device 1 is connected with the oil pumping control device 2, and the other end is connected with the oil well pump 200 and used for drawing the oil well pump 200 to do reciprocating motion so as to realize oil pumping.

Fig. 2 is a schematic structural diagram of an oil pumping action device according to an embodiment of the present invention.

As shown in fig. 2, the oil pumping actuator 1 includes an oil pumping transmission mechanism 11 and a drive motor 12.

The oil pumping transmission mechanism 11 is connected with the oil well pump 200 and is used for controlling the oil well pump 200 to perform piston movement so as to realize oil pumping.

The pump jack 11 has a decelerator 111, a crank bracket 112, a crank 113, a walking beam bracket 114, a walking beam 115, a horse head 116, and an origin detection module 117.

The reducer 111 has one end connected to the driving motor 12 and the other end connected to the crank 113, and is configured to transmit the torque of the driving motor 12 to rotate the crank 113 and reduce the rotation speed.

The crank bracket 112 is fixedly mounted on the ground.

The crank 113 is attached to the crank bracket 112 for circular movement about the point of attachment of the crank 113 to the crank bracket 112.

The walking beam support 114 is fixedly connected to the ground.

One end of the walking beam 115 is connected with the crank 113 through a connecting rod, and is connected with the walking beam bracket 114 at a position close to the middle of the walking beam 115, so that the walking beam can reciprocate along with the circular motion of the crank 113 by taking the connecting point of the walking beam 115 and the walking beam bracket 114 as a fulcrum.

The horse head 116 is installed at an end of the walking beam 115 opposite to the position where the crank 113 is connected, and can reciprocate along with the walking beam 115. One end of the horse head 116 is connected to the pump 200 by a pull string (not shown).

The origin detection module 117 is installed on the crank bracket 112 and is in communication connection with the oil pumping control device 2, and the origin detection module 117 sends a pulse signal to the oil pumping control device 2 once every time the crank 113 rotates past the position of the origin detection module 117.

In this embodiment, the origin detection module 117 is a proximity switch, and sends a pulse signal to the pumping control device every time the crank 113 rotates past the position of the proximity switch.

The driving motor 12 is connected to the decelerator 111, and is used for driving the decelerator 111 to rotate so as to drive the crank 113 connected to the decelerator 111 to perform a rotational motion, and further drive the walking beam 115 connected to the crank 113 through a connecting rod, the horse head 116 mounted on the walking beam 115, and the oil pump 200 connected to the horse head 116 through a traction rope to perform a reciprocating motion.

In other embodiments, the pump actuator 11 may not have the walking beam 115. The purpose of the invention of output detection and intellectualization can be realized by only an oil pumping transmission mechanism which can drive the oil well pump 200 to reciprocate up and down under the drive of the drive motor 12.

FIG. 3 is a schematic structural diagram of an oil pumping control device according to an embodiment of the present invention.

As shown in FIG. 3, the oil well pumping control device 2 comprises a frequency converter 21, an operation terminal 22, a controller 23, wherein the frequency converter 21 is electrically connected with the driving motor 12, the controller 22 is connected with the frequency converter 21 and the controller 22 is connected with the operation terminal 23 through a communication network 24.

Fig. 4 is a schematic structural diagram of a frequency converter according to an embodiment of the present invention.

As shown in fig. 4, the inverter 21 includes a measurement unit 211, an inverter unit 212, a start frequency storage unit 213, an inverter-side communication unit 214, and an inverter-side control unit 215.

The measuring unit 211 measures and obtains a current value I, a current voltage value U, and a current frequency value of the current flowing through the driving motor 12f and the current power factor value

As the current electrical parameter.

The frequency converter 212 is used to adjust the frequency of the current flowing through the driving motor 12, thereby adjusting the rotational frequency of the driving motor 12 and further changing the pumping efficiency of the pumping actuator 1.

The start frequency storage unit 213 stores a preset start frequency, and when the inverter-side communication unit 214 receives the start signal, the inverter-side control unit 215 controls the inverter 212 to convert the current flowing through the drive motor 12 so that the frequency of the current is equal to the start frequency, based on the stored start frequency.

In this embodiment, the frequency conversion process by the frequency conversion unit 212 is performed gradually. The frequency conversion unit 212 gradually changes the frequency of the current passing through the driving motor 12 from zero to equal to the starting frequency according to the starting frequency, so as to reduce the impact of the current on the driving motor 12.

The inverter-side communication unit 214 is used for data communication between the inverter 21 and the controller 23.

The inverter-side control unit 215 includes a computer program for controlling the operation of each component of the inverter 21.

Fig. 5 is a schematic structural diagram of an operation terminal according to an embodiment of the present invention.

As shown in fig. 5, the operation terminal 22 includes a screen storage unit 221, a display unit 222, an operation-side communication unit 223, and an operation-side control unit 224.

The screen storage unit 221 stores a status display screen.

FIG. 6 is a status display screen of an embodiment of the present invention.

As shown in fig. 6, the status display screen has a production display area 2211 for displaying daily production, a stroke display area 2212 for displaying the current stroke, a pump efficiency display area 2213 for displaying the pumping efficiency, a failure display area 2214 for displaying the failure name when a failure occurs, an indicator diagram display area 2215 for displaying the current indicator diagram, a start button 2216 for controlling the pumping unit to start, and a stop button 2217 for controlling the pumping unit to stop.

The display unit 222 displays a status display screen and displays the daily output, the current stroke frequency, the pumping efficiency, the failure name, and the current indicator diagram on the screen to allow the worker to read the operating status of the intelligent pumping unit 100 for output detection. A start button 2216 and a stop button 2217 are simultaneously displayed for a worker to press to control the start and stop of the production testing intelligent pumping unit 100.

Once the worker presses the start button 2216, the operation-side control section 224 controls the operation-side communication section to transmit a start signal to the controller 23, and the controller 23 transmits the start signal to the inverter 21. When the inverter-side control unit receives the start signal, the inverter-side control unit 215 controls the inverter unit 212 to convert the current flowing through the drive motor 12 so that the frequency of the current becomes equal to the start frequency, based on the stored start frequency.

Once the worker presses the start button 2216, the operation-side control section 224 controls the operation-side communication section to send a stop signal to the controller 23, and the controller 23 sends the stop signal to the inverter 21. When the inverter-side control unit receives the stop signal, the inverter-side control unit 215 controls the inverter 212 to invert the current flowing through the drive motor 12 so that the frequency of the current gradually becomes zero, thereby controlling the pumping unit 1 to stop operating.

The operation-side communication unit 223 is used to perform data communication between the operation terminal 22 and the controller 23.

The operation-side control unit 224 includes a computer program for controlling the operations of the respective components of the operation terminal 22.

Fig. 7 is a schematic structural diagram of a controller according to an embodiment of the present invention.

As shown in fig. 7, the controller 23 includes a indicator diagram storage unit 231, a parameter storage unit 232, a current indicator diagram generation acquisition unit 233, a failure determination unit 234, an offset determination unit 235, a stroke acquisition unit 236, a pump efficiency calculation unit 237, a production amount calculation unit 238, an alarm unit 239, a control-side communication unit 240, and a control-side control unit 241.

The indicator diagram storage unit 231 stores an indicator diagram corresponding to the normal operating state of the pumping operation device 1 as a reference indicator diagram, a plurality of serious failure indicator diagrams corresponding to serious failures occurring in the pumping process and corresponding failure names, and a plurality of slight failure indicator diagrams corresponding to slight failures occurring in the pumping process and corresponding failure names.

In this embodiment, the serious failure indicator diagram includes an indicator diagram that if the oil pumping operation device 1 continues to pull the oil pumping unit 200 to continue operating, the serious consequence of which causes serious economic loss, such as leakage of the oil pumping unit 200, serious abrasion or breakage of the oil pumping unit 200, and the like.

In this embodiment, the minor fault indicator diagram includes an indicator diagram that if the pumping action device 1 continues to pull the oil pump 200 to continue to operate, the minor fault indicator diagram will not cause serious consequences, such as excessive gas in the oil well and sand in the oil well. Because the time consumed by the shutdown inspection and maintenance of the pumping unit is long, two to three days are generally needed, and if a fault corresponding to a slight fault indicator diagram occurs, the oil pumping action control device 1 stops pumping oil, which may cause greater economic loss.

The parameter storage unit 232 stores transmission parameters of the pumping transmission mechanism 11, fixed electrical parameters of the drive motor 12, the capacity of the oil pump 200, and a control frequency corresponding to a light failure indicator diagram.

In this embodiment, the transmission parameters include the gear ratio of the decelerator 111, the rotation radius of the walking beam 115, the rotation radius of the crank 113, and the vertical stroke of the horse head 113. The fixed electrical parameters include the rated voltage, rated frequency, rated current, pole count, rated power, rated speed, highest frequency, and lowest frequency of the drive motor 12.

In other embodiments, depending on the components of the oil well actuator 11, the stored actuator parameters should include parameters corresponding to the oil well actuator 11.

In this embodiment, the stored volume value is related to the pump 200, and the volume stored in the parameter storage unit 232 may be modified depending on the pump 200 to be towed.

The current indicator diagram generation and acquisition unit 233 calculates and acquires the indicator diagram in the current state as the current indicator diagram based on the fixed electrical parameters and the transmission parameters stored in the parameter storage unit 232 and the current electrical parameters measured by the measurement unit 211 of the frequency converter 21.

Upon acquiring the current indicator diagram, the control-side control unit 241 controls the control-side communication unit 240 to transmit the current indicator diagram as indicator diagram information to the operation-side communication unit 223 of the operation terminal 22. When the operation-side communication unit receives the indicator diagram information, the operation-side control unit 224 controls the display unit 222 to display the current indicator diagram in the indicator diagram display area 2215 of the input display screen.

In this embodiment, the current value I, the current voltage value U and the current power factor value in the current electrical parameter are determined

The active power P of the driving motor 12 is obtained by calculation, and the calculation formula is:

calculating and obtaining the torque T of the driving motor 12 according to the current frequency value f, wherein the calculation formula is as follows:

the torque T obtained by calculation is the load on the ordinate in the indicator diagram.

In other embodiments, because the factors affecting the load also include parameters of the drive motor 12 itself and the efficiency of the oil pumping transmission mechanism, the load is calculated by considering the influence of the fixed electrical parameters and the transmission parameters, and the calculation process is more complicated.

In this embodiment, when the driving motor 12 drives the reducer 114 and the crank connected to the reducer 114 to rotate, any position where the crank rotates corresponds to any position where the horse head 113 connected to the walking beam pulls the oil well pump to reciprocate one by one. The current voltage value U and the power factor value before the point obtained by the measuring part 211

And setting the stroke of the oil well pump 200 at the lowest point to be 0, and calculating to obtain the stroke of the oil well pump 200 corresponding to the load in the current state. And finally, generating a current indicator diagram according to the obtained load and stroke.

The failure determination unit 234 is configured to determine whether the current indicator diagram is identical to any one of the stored serious failure indicator diagram and the stored light failure indicator diagram.

When the fault is identical to any of the critical fault indicator diagrams, the control-side control unit 241 controls the control-side communication unit 240 to transmit a critical fault signal to the inverter-side communication unit 214, controls the alarm unit 239 to issue an alarm, and controls the control-side communication unit 240 to transmit a fault name corresponding to the critical fault indicator diagram identical to the current indicator diagram to the operation-side communication unit 223 as fault information.

When the frequency conversion side communication unit 214 receives the serious failure signal, the frequency conversion side control unit 215 controls the frequency conversion unit 212 to convert the frequency of the current flowing through the drive motor 12 so that the frequency of the current gradually becomes zero, thereby controlling the pumping operation device 1 to stop operating.

When the operation-side communication unit 223 receives the trouble information, the operation-side control unit 224 controls the display unit 222 to display the corresponding trouble name in the trouble display area 2213 on the input display screen.

In this embodiment, the warning unit 239 is a red warning lamp, and the control-side control unit 241 controls the warning unit 239 to give a warning, that is, the red warning lamp is turned on. In another embodiment, the alarm unit may be a buzzer for giving an alarm by giving a buzzer.

When the detected signal is identical to any one of the light failure indicator diagrams, the control-side control unit 241 controls the control-side communication unit 240 to transmit the control frequency corresponding to the light failure indicator diagram to the inverter-side communication unit 214 as light failure information, controls the control-side communication unit 240 to transmit the failure name corresponding to the serious failure indicator diagram identical to the current indicator diagram to the operation-side communication unit 223 as failure information,

when the inverter-side communication unit 214 receives the slight failure information, the inverter-side control unit 215 controls the inverter unit 212 to convert the current flowing through the drive motor 12 according to the corresponding control frequency.

In this embodiment, the control frequency is lower than the current frequency value of the current flowing through the driving motor, so that the loss caused by slight fault can be reduced by reducing the number of times of pumping by the pumping action device 1 to pull the oil well pump 200.

When the operation-side communication unit 223 receives the trouble information, the operation-side control unit 224 controls the display unit 222 to display the corresponding trouble name in the trouble display area 2213 on the input display screen.

Fig. 8 is a schematic diagram illustrating a comparison between a current indicator diagram and a reference indicator diagram according to an embodiment of the present invention.

As shown in fig. 8, the offset determination unit 235 is configured to compare the current indicator diagram with the reference indicator diagram and determine whether the current indicator diagram is offset from the reference indicator diagram. When it is determined that there is an offset, the control-side control unit 241 generates an adjustment frequency from the offset and controls the control-side communication unit 240 to transmit the adjustment frequency to the inverter-side communication unit 214 as an adjustment signal.

In this embodiment, the current indicator diagram obtained by calculation is shown as a black implementation in the diagram, and the reference indicator diagram is shown as a gray solid line in the diagram. It can be seen from the figure that the curve of the AB segment of the reference indicator diagram does not coincide with the curve of the a 'B' segment of the current indicator diagram, and there is an offset between the two.

The stroke frequency acquiring unit 236 is configured to calculate the number of times that the oil pump reciprocates per minute as the current stroke frequency according to the pulse signal sent by the origin detecting module 117 and the time when the pulse signal is received.

In this embodiment, the origin detection module 117 sends a pulse signal every time, which indicates that the crank 113 completes one rotation, i.e. the oil pumping transmission mechanism 11 completes one stroke. Each time the control-side communication unit 240 receives a pulse signal transmitted from the origin detection module 117 once, the control-side control unit 241 controls the current indicator diagram generation/acquisition unit 234 to generate one current indicator diagram.

In other embodiments, the origin detection module 117 may be a distance sensor. The distance sensor transmits a detection signal to the oil pumping control side communication unit 240 based on the detected distance from the crank 113. The control-side control unit 241 determines whether the crank 113 has completed one rotation based on the received detection signal, and controls the current indicator diagram generation/acquisition unit 234 to generate one current indicator diagram when it is determined that the rotation is completed one rotation.

Upon acquiring the current stroke count, the control-side controller 241 controls the control-side communicator 240 to transmit the current stroke count as stroke count information to the operation-side communicator 223 of the operation terminal 22. When the operation-side communication unit receives the stroke information, the operation-side control unit 224 controls the display unit 222 to display the current stroke in the stroke display area 2212 of the input display screen.

In this other embodiment, the controller 23 may further include an accumulated lifting frequency acquiring unit configured to perform accumulated calculation based on the received pulse signal to acquire an accumulated lifting frequency of the oil pump 200. And at the same time, the cumulative number of lifts is displayed in a region corresponding to the state display screen displayed on the display unit 222 of the operation terminal 22. The status display screen may also have a reset button. Once the worker presses the reset button, the controller 23 clears the cumulative lift number of the oil pump 200 cumulatively calculated by the cumulative lift number obtaining portion.

The pump efficiency calculation unit 237 calculates the percentage of the total stroke of the oil pump 200 in one reciprocating stroke based on the current indicator diagram as the pumping efficiency.

Once the pumping efficiency is acquired, the control-side control unit 241 controls the control-side communication unit 240 to transmit the pumping efficiency as pump efficiency information to the operation-side communication unit 223 of the operation terminal 22. When the operation-side communication unit receives the pumping efficiency, the operation-side control unit 224 controls the display unit 222 to display the pumping efficiency in the pumping efficiency display area 2213 on the input display screen.

The output calculation unit 238 calculates the pumping efficiency and the stored volume of the pump 200 to obtain the pumping amount of the pump 200 in one reciprocating stroke corresponding to the current indicator diagram, and further calculates the pumping amount and the current stroke frequency to obtain the daily output of the pump.

Upon acquiring the daily production volume, the control-side control section 241 controls the control-side communication section 240 to transmit the daily production volume as production volume information to the operation-side communication section 223 of the operation terminal 22. When the operation-side communication unit receives the yield information, the operation-side control unit 224 controls the display unit 222 to display the daily yield in the yield display area 2211 of the input display screen.

In other embodiments, the controller 23 may also have an annual production calculation section. The annual production amount calculation section may obtain an annual production amount estimate value based on the obtained daily production amount and the number of days of the year. After the estimated annual production amount is obtained, the estimated annual production amount can be displayed in an area corresponding to a state display screen displayed on a display unit of the operation terminal.

The control-side communication unit 240 is used to perform data communication between the controller 23 and the operation terminal 22 and between the controller 23 and the inverter 21.

And the control-side control section 241 contains a computer program for controlling the operations of the controller 23 and the respective constituent elements.

Fig. 9 is a flow chart of the oil pumping process of the intelligent oil pumping unit for yield detection according to the embodiment of the invention.

As shown in fig. 9, the oil pumping process of the intelligent oil pumping unit 100 for yield detection is as follows:

step S1, after the worker presses the start button 2216, the frequency converter 21 converts the frequency of the current flowing through the driving motor 12 according to the start frequency, so that the frequency of the current is gradually increased from zero to be equal to the start frequency, and the oil pumping action mechanism 1 starts to pull the oil pump to pump oil, and then the step S2 is performed;

step S2, measuring and acquiring a current value, a current voltage value, a current frequency value, and a current power factor value of the current flowing through the driving motor 12 as current electrical parameters, and sending them, and then proceeding to step S3;

step S3, calculating according to the received current electrical parameters, the stored fixed electrical parameters and the transmission parameters to obtain a current indicator diagram, and then entering step S4;

step S4, obtaining the number of times of reciprocating movement of the oil pump 200 per minute as the current stroke number by performing the calculation according to the received pulse signal and the time of receiving the pulse signal, and then entering step S5;

step S5, calculating the percentage of the total stroke of the oil well pump 200 in a reciprocating stroke according to the obtained current indicator diagram as the oil pumping efficiency, and then entering step S6;

step S6, calculating according to the obtained pumping efficiency and the stored volume of the pump 200, so as to obtain the pumping amount of the pump 200 in one reciprocating stroke corresponding to the current indicator diagram, further calculating according to the pumping amount and the current stroke frequency, so as to obtain the daily pumping amount of the pump 200 as the daily output, and then entering step S7;

step S7, the display unit 222 displays the status display screen and displays the current indicator diagram, the current stroke frequency, the pumping efficiency and the daily output in the corresponding area, and then the process goes to step S8;

step S8, comparing the obtained current indicator diagram with a plurality of stored serious fault indicator diagrams and a plurality of stored slight fault indicator diagrams, judging whether the current indicator diagram is the same as any one of the serious fault indicator diagrams or the slight fault indicator diagrams, entering a fault alarm process and then entering an ending state if the current indicator diagram is the same as any one of the serious fault indicator diagrams or the slight fault indicator diagrams, and entering step S9 if the current indicator diagram is different from any one of the serious fault indicator diagrams or the slight fault indicator diagrams;

step S9, judging whether the obtained current indicator diagram has deviation relative to the generated reference indicator diagram, if not, entering step S2, and if so, entering step S10;

step S10, generating an adjustment frequency according to the deviation, further adjusting the frequency of the current flowing through the driving motor 12 according to the adjustment frequency, thereby realizing the adjustment of the oil pumping efficiency of the oil pumping action device 1, and then entering the step S2;

step S11, a fault handling and alarm process is performed, and then an end state is entered.

FIG. 10 is a flow chart of the fault handling and alarm process in the event of a failure in the pumping process in an embodiment of the present invention.

As shown in fig. 10, the fault handling and alarm process is as follows:

step T1, determining which fault indicator diagram is the same as the current indicator diagram, if the fault determining unit 235 determines that the current indicator diagram is the same as the serious fault indicator diagram, then entering step T2, and if the fault determining unit 235 determines that the current indicator diagram is the same as the slight fault indicator diagram, then entering step T4;

step T2, the control side controller 241 controls the alarm 239 to send an alarm and the control side communicator 240 sends a serious fault signal to the frequency conversion side communicator 213, and then proceeds to step T3;

step T3, the frequency conversion side control unit 214 controls the frequency conversion unit 212 to convert the frequency of the current flowing through the driving motor 12 so that the frequency of the current gradually becomes zero, thereby controlling the pumping operation device 1 to stop working, and then the process proceeds to step T6;

in step T4, the control-side control section 241 controls the control-side communication section 240 to transmit the control frequency corresponding to the same minor failure indicator diagram as the current indicator diagram stored in the parameter storage section to the variable-frequency side communication section as minor failure information, and then proceeds to step T5;

in step T5, the frequency conversion side controller 214 controls the frequency converter 212 to convert the frequency of the current flowing through the driving motor 12 according to the corresponding control frequency, and then proceeds to step T6;

at step T6, the control-side control section 241 controls the control-side communication section 240 to transmit the failure name corresponding to the serious failure indicator diagram or the slight failure indicator diagram to the operation-side communication section 223 as failure information, and then proceeds to step T7;

at step T7, the operation-side control unit 224 controls the display unit 222 to display the corresponding trouble name in the trouble display area 2213 on the input display screen, and then enters the end state.

Examples effects and effects

According to the intelligent oil pumping unit for yield detection provided by the embodiment, voltage, current, frequency and power factors of current flowing through the driving motor are obtained through measurement of the frequency converter and serve as current electrical parameters, and then after the oil well pump is detected to complete one stroke, a indicator diagram corresponding to the current stroke of the oil well pump is obtained through calculation according to the current electrical parameters, the fixed electrical parameters and the transmission parameters and serves as the current indicator diagram. And further, calculating according to the pulse signal sent by the origin detection module to obtain the current stroke frequency, and calculating based on the current indicator diagram and the volume of the oil well pump to obtain the oil pumping efficiency of the oil well pump. And then, calculating to obtain the daily output of the oil well pump according to the obtained current stroke frequency and the oil pumping efficiency. The current indicator diagram, the current stroke frequency, the oil pumping efficiency and the daily output are obtained and then displayed in the operation terminal, so that a worker can simply read the current state of the oil pumping unit through the operation terminal, quickly know the output of the oil pumping unit, facilitate arrangement of a production plan of an oil well of the oil pumping unit and improve the production efficiency.

According to the intelligent beam-pumping unit of output detection that this embodiment provided, thereby adjust the frequency of driving motor based on present indicator diagram and control the oil pumping efficiency of oil-well pump, thereby the frequency of the electric current of adjusting driving motor is adjusted to the skew generation after comparing according to present indicator diagram and benchmark indicator diagram, finally realizes the regulation to oil-well pump efficiency. The intelligent operation of the oil pumping unit is realized, the labor force requirement is reduced, and the realization of large-scale intelligent operation of the oil field is facilitated.

According to the intelligent pumping unit with pump efficiency adjustment provided by the embodiment, the current indicator diagram and the serious fault indicator diagram are compared by the fault judgment part to judge whether the current indicator diagram and the serious fault indicator diagram are the same or not, further, when the judgment result is yes, a red alarm lamp of the alarm part is turned on, a corresponding fault name is displayed at the operation terminal, and meanwhile, the frequency of current flowing through the driving motor is adjusted to be zero so as to control the pumping action device to stop drawing the oil well pump. Therefore, when serious faults occur in the production process, the production can be stopped in time, and the greater economic loss is avoided. Meanwhile, the worker is prompted to stop due to serious faults of the pumping unit through an obvious red alarm lamp, and the pumping unit needs to be maintained as soon as possible.

According to the intelligent pumping unit with the pump efficiency adjustment, the current indicator diagram and the slight fault indicator diagram are compared by the fault judging part to judge whether the current indicator diagram and the slight fault indicator diagram are the same or not, and further, when the judgment is yes, the corresponding fault name is displayed on the operation terminal, and meanwhile, the frequency of current flowing through the driving motor is adjusted according to the corresponding control frequency, so that the frequency of stroke of the pumping action device for drawing the oil well pump to pump oil is reduced. Due to the reduction of the stroke frequency, the loss caused by continuous production of the oil pumping unit without stopping under slight fault is reduced. Because the time required for stopping the machine for maintenance is long, generally two to three days are required, the pumping action device is not controlled to stop working when a slight fault occurs, so that the larger economic loss can be avoided. And through the display of the operating terminal on the fault name, workers can intuitively know the fault content of the oil pumping unit, and regular maintenance and inspection can be conveniently arranged.

According to the intelligent pumping unit with pump efficiency adjustment provided by the embodiment, the current value, the current voltage value, the current power factor and the current frequency of the current flowing through the driving motor are measured through the frequency converter. And calculating to obtain a current indicator diagram of the oil pumping process according to the current electrical parameters, the fixed electrical parameters of the driving motor and the transmission parameters of the oil pumping transmission mechanism. Because the measurement of the current electrical parameter flowing through the driving motor is less influenced by environmental factors such as temperature, humidity and the like, the accuracy of the current indicator diagram obtained by calculation is improved. The accuracy of controlling the oil pumping action of the oil well pump is further improved.

The above-described embodiments are merely illustrative of specific embodiments of the present invention, and the present invention is not limited to the description of the above-described embodiments.

Claims (9)

1. The utility model provides an intelligent beam-pumping unit of output detection, thereby the setting carries out reciprocating motion at oil well department through drawing the oil-well pump and realizes pumping, a serial communication port, includes:

an oil pumping action device and an oil pumping control device,

wherein the oil pumping action device is provided with an oil pumping transmission mechanism and a driving motor

The oil pumping transmission mechanism is connected with the oil well pump and is used for controlling the oil well pump to reciprocate so as to realize oil pumping,

the oil pumping transmission mechanism comprises a crank, a crank bracket and an origin detection mechanism,

the crank is connected with the crank bracket and can do circular motion around the connecting point of the crank and the crank bracket,

the origin detection module is arranged on the crank bracket and used for sending a pulse signal when the crank rotates to pass through the position of the origin detection module,

the driving motor is connected with the oil pumping transmission mechanism and is used for driving the oil pumping transmission mechanism to reciprocate;

the oil pumping control device is provided with an operation terminal, a frequency converter and a controller,

the operation terminal has a screen storage unit, a display unit, an operation-side communication unit, and an operation-side control unit,

the frequency converter is electrically connected with the driving motor and is provided with a measuring part, a frequency conversion side communication part and a frequency conversion side control part,

the controller is connected with the frequency converter and the operation terminal in a communication way and is provided with an indicator diagram storage part, a parameter storage part, a current indicator diagram generation and acquisition part, a stroke frequency acquisition part, a pump efficiency calculation part, a yield calculation part, a control side communication part and a control side control part,

the picture storage part stores a state display picture,

the status display screen has a yield display area,

the indicator diagram storage part stores an indicator diagram corresponding to the normal working state of the oil pumping action device as a reference indicator diagram,

the parameter storage part stores fixed electric parameters of the driving motor, transmission parameters of the oil pumping transmission mechanism and the volume of the oil well pump,

the measuring part is used for measuring and acquiring the current value, the current voltage value, the current frequency value and the current power factor value of the current flowing through the driving motor as the current electrical parameters,

the frequency converter communication section transmits the electrical parameter to the control side communication section,

the current indicator diagram generation and acquisition part calculates and acquires the indicator diagram in the current state as the current indicator diagram according to the fixed electrical parameters, the transmission parameters and the current electrical parameters,

the control side control part generates corresponding adjusting frequency according to the current indicator diagram and the reference indicator diagram, and further controls the control side communication part to send the adjusting frequency to the frequency conversion side communication part as adjusting information,

once the frequency conversion side communication part receives the adjustment information, the frequency conversion side control part controls the frequency conversion part to adjust the frequency of the current flowing through the driving motor according to the adjustment signal, thereby adjusting the rotation frequency of the driving motor and realizing the adjustment of the oil pumping efficiency of the oil pumping action device,

the origin detection module is in communication connection with the controller, the control side communication part receives the pulse signal sent by the origin detection module,

the stroke frequency acquisition part calculates according to the received pulse signal and the time of receiving the pulse signal so as to obtain the reciprocating motion frequency of the oil well pump per minute as the current stroke frequency,

the pump efficiency calculating part calculates the percentage of the loaded stroke in one reciprocating stroke of the oil well pump to the total stroke according to the obtained current indicator diagram as the oil pumping efficiency,

the output calculating part calculates according to the obtained oil pumping efficiency and the stored volume of the oil well pump so as to obtain the oil pumping amount of the oil well pump in one reciprocating stroke corresponding to the current indicator diagram, and further calculates according to the oil pumping amount and the current stroke frequency so as to obtain the daily oil pumping amount of the oil well pump as daily output,

upon obtaining the daily output, the control-side control section controls the control-side communication section to transmit the daily output to the operation terminal as output information, and the operation-side control section controls the display section to display the status display screen and the daily output in the output display area of the screen, based on the output information received by the operation-side communication section.

2. The yield detection intelligent pumping unit according to claim 1, characterized in that:

wherein the control unit further comprises an offset determination unit,

the offset judging part is used for comparing the current indicator diagram with the reference indicator diagram and judging whether the current indicator diagram has offset relative to the reference indicator diagram,

if it is determined that the offset is greater than the predetermined threshold, the control-side control unit generates the adjustment frequency based on the offset.

3. The yield detection intelligent pumping unit according to claim 1, characterized in that:

wherein the state display picture also comprises a stroke display area, a pump effect display area and an indicator diagram display area,

the control-side control section, upon acquiring the current number of times of stroke, controls the control-side communication section to transmit the current number of times of stroke as number-of-stroke information to the operation-side communication section,

the control-side control unit controls the control-side communication unit to transmit the pumping efficiency to the operation-side communication unit as pumping efficiency information upon acquisition of the pumping efficiency,

the control-side control section controls the control-side communication section to transmit the current indicator diagram to the operation-side communication section as indicator diagram information upon acquisition of the current indicator diagram,

when the operation-side communication unit receives the stroke information, the pump efficiency information, and the indicator diagram information, the operation-side control unit controls the display unit to display the current stroke, the pump efficiency, and the indicator diagram in the state display screen in the stroke display area, the pump efficiency display area, and the indicator diagram display area.

4. The yield detection intelligent pumping unit according to claim 1, characterized in that:

wherein the state display screen further has a start button and a stop button,

the frequency conversion side control part is also provided with a starting frequency storage part,

the starting frequency storage part stores preset starting frequencies,

when the worker presses the start button, the operation-side control section controls the operation-side communication section to transmit a start signal to the controller,

the control-side communication section transmits the start signal to the inverter upon receiving the stop signal,

when the frequency conversion side communication part receives the starting signal, the frequency conversion side control part controls the frequency conversion part to convert the frequency of the current flowing through the driving motor according to the starting frequency so that the frequency of the current is equal to the starting frequency,

when the worker presses the stop button, the operation-side control section controls the operation-side communication section to send a stop signal to the controller,

the control-side communication section transmits the stop signal to the inverter upon the control-side communication section receiving the stop signal,

when the frequency conversion side communication part receives the stop signal, the frequency conversion side control part controls the frequency conversion part to convert the frequency of the current flowing through the driving motor so that the frequency of the current gradually becomes zero, thereby controlling the oil pumping action device to stop working.

5. The yield detection intelligent pumping unit according to claim 1, characterized in that:

wherein the oil pumping transmission mechanism is also provided with a walking beam bracket, a walking beam, a horse head and a speed reducer,

the walking beam bracket is fixedly arranged on the ground and used for mounting the walking beam, the walking beam reciprocates by taking the connecting point of the walking beam and the walking beam bracket as a fulcrum,

the walking beam is connected with the crank and reciprocates along with the circular motion of the crank,

the horse head is fixedly arranged on the walking beam and reciprocates together with the walking beam,

one end of the speed reducer is connected with the driving motor, the other end of the speed reducer is connected with the crank and is used for transmitting the torque of the driving motor and reducing the rotating speed,

the transmission parameters comprise the transmission ratio of the reducer, the rotation radius of the crank, the rotation radius of the walking beam and the vertical stroke of the horse head.

6. The yield detection intelligent pumping unit according to claim 1, characterized in that:

the fixed electrical parameters comprise rated voltage, rated frequency, rated current, pole number, rated power and rated rotating speed of the driving motor.

7. The yield detection intelligent pumping unit according to claim 1, characterized in that:

wherein, once the control-side communication unit receives the pulse signal sent by the origin detection module, the current indicator diagram generation and acquisition unit generates and acquires the current indicator diagram.

8. The yield detection intelligent pumping unit according to claim 1, characterized in that:

wherein, the indicator diagram storage part also stores a plurality of corresponding serious failure indicator diagrams when serious failures occur in the oil pumping process, and correspondingly stores corresponding failure names,

the controller further has a failure determination section and an alarm section,

the input display also has a fault display area,

once the current indicator diagram generation and acquisition part acquires the current indicator diagram, the control-side control part controls the fault judgment part to judge whether the current indicator diagram is the same as any one of the serious fault indicator diagrams, if so, the control-side control part controls the control-side communication part to send a serious fault signal to the frequency conversion-side communication part, controls the alarm part to give an alarm, and controls the control-side communication part to send the fault name corresponding to the serious fault indicator diagram which is the same as the current indicator diagram to the operation terminal as fault information,

when the frequency conversion side communication part receives the serious fault signal, the frequency conversion side control part controls the frequency conversion part to convert the frequency of the current flowing through the driving motor so that the frequency of the current gradually becomes zero, thereby controlling the oil pumping action device to stop working,

when the operation-side communication unit receives the trouble information, the operation-side control unit controls the display unit to display the corresponding trouble name in the trouble display area of the input display screen.

9. The yield detection intelligent pumping unit according to claim 1, characterized in that:

wherein, the indicator diagram storage part also stores a plurality of indicator diagrams corresponding to slight faults in the oil pumping process as the slight fault indicator diagrams and correspondingly stores corresponding fault names,

the controller is also provided with a fault judgment section,

the input display also has a fault display area,

the parameter storage part is also stored with control frequency corresponding to each slight fault indicator diagram,

once the current indicator diagram generation and acquisition unit acquires the current indicator diagram, the control-side control unit controls the fault determination unit to determine whether the current indicator diagram is the same as any one of the light fault indicator diagrams, and if so, the control-side control unit controls the control-side communication unit to send the control frequency corresponding to the light fault indicator diagram as light fault information to the frequency conversion-side communication unit, and controls the control-side communication unit to send the fault name corresponding to the light fault indicator diagram that is the same as the current indicator diagram as fault information to the operation terminal,

the variable frequency side control section controls the variable frequency section to frequency-convert the current flowing through the drive motor according to the control frequency upon the variable frequency side communication section receiving the minor failure information,

when the operation-side communication unit receives the trouble information, the operation-side control unit controls the display unit to display the corresponding trouble name in the trouble display area of the input display screen.

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