CN2259509Y - Intelligent controlling device for beam pumping machine - Google Patents
Intelligent controlling device for beam pumping machine Download PDFInfo
- Publication number
- CN2259509Y CN2259509Y CN 96201939 CN96201939U CN2259509Y CN 2259509 Y CN2259509 Y CN 2259509Y CN 96201939 CN96201939 CN 96201939 CN 96201939 U CN96201939 U CN 96201939U CN 2259509 Y CN2259509 Y CN 2259509Y
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- CN
- China
- Prior art keywords
- pumping unit
- asynchronous motor
- beam pumping
- oil
- frequency variator
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to an automatic control device for a beam oil pumping machine of oil field water injection and raw oil extraction. The utility model is characterized in that an asynchronous motor 6 is provided with an electric current and voltage sensor 1, a beam oil pumping machine 7 is provided with a spacing sensor 2, the sensor 1 and the output end of the spacing sensor 2 are connected with a programmable controller 4 and then connected with a frequency converter 5, the rotation speed of the asynchronous motor 6 can be adjusted, and an energy feed back device 9 can feed the electric power generated by the asynchronous motor 6 because of the dragging of the beam oil pumping machine 7 back to an electric network. The utility model can control the speed change stroke of the beam oil pumping machine and meet the requirements of various situations of liquid supply of oil well, and the utility model is suitable for dilute oil wells and thick oil wells and can improve the efficiency of the whole oil pumping system and save energy.
Description
The utility model relates to aspects such as oil-field flooding, crude oil transmission and is used in automatic controller above the beam pumping unit.
There are several problems in the widely used beam pumping unit in oil field at present: the firstth, and the motor majority is in the state of low load with strong power, and common beam pumping unit can't overcome this shortcoming, causes the motor power (output) factor to reduce.Motor efficiency descends, thereby cause whole oil pumping system efficient lower, the secondth, pumping unit generally has only three jig frequencies, promptly 6 times/minute, 9 times/minute, 12 times/minute, can't satisfy the not enough desired various jig frequencies of heavy crude reservoir and low-permeability oil deposit and oil well later stage feed flow, when oil pumping, easily cause faults such as polished rod is fought, liquid hammer to take place.The 3rd is that common beam pumping unit can't change the suction parameter according to oil reservoir feed flow situation automatically automatically.
The purpose of this utility model is to provide a kind of and improves whole oil pumping system efficient, adapt to the oil well liquid-supplying situation and the various jig frequencies that require, can change the beam pumping unit intelligence controlling device that aspirates parameter, energy saving automatically according to oil reservoir feed flow situation automatically.
The utility model is achieved in that it is made up of electric current and voltage transducer 1, limit sensors 2, programmable controller 4, frequency variator 5, asynchronous motor 6, beam pumping unit 7, bleeder 8, energy feedback device 9, electric current and voltage transducer 1 are installed on asynchronous motor 6, limit sensors 2 is installed on the beam pumping unit 7, electric current is connected with programmable controller 4 with voltage transducer 1 output terminal, limit sensors 2 output terminals, programmable controller 4 output terminals connect frequency variator 5, and control frequency variator 5 is regulated asynchronous motor 6 rotating speeds.
Can connect energy feedback device 9 at frequency variator 5 rectification output ends, energy feedback device 9 is inversion modules, and its output coupled mains supply circuit can drag beam pumping unit 7 electric power that asynchronous motor 6 sends and feed back to electrical network.
Also can connect bleeder 8 at frequency variator 5 rectification output ends, bleeder 8 is made up of inverter K and braking resistor 8.1 or well head heater 8.2, beam pumping unit 7 is dragged the electric power that asynchronous motor 6 sends release.
Advantage of the present utility model is: be applicable to thin oil well and thick oil well, can improve whole oil pumping system efficient, adapt to the oil well liquid-supplying situation and the various jig frequencies that require, can change the suction parameter according to oil reservoir feed flow situation automatically, improved the motor power (output) factor, remarkable energy-saving performance.
Fig. 1 is a structural representation of the present utility model.
Below in conjunction with accompanying drawing the utility model is described further:
By shown in Figure 1: the parameter that electric current and voltage transducer 1 measure machine operation is installed on the asynchronous motor 6 of pumping unit, limit sensors 2 is installed at the lower dead center place on the walking beam of pumping unit 7, electric current is connected with programmable controller 4 with voltage transducer 1 output terminal, limit sensors 2 output terminals, programmable controller 4 output terminals connect frequency variator 5, and control frequency variator 5 is regulated asynchronous motor 6 rotating speeds.
Can connect energy feedback device 9 at frequency variator 5 rectification output ends, energy feedback device 9 is inversion modules, and its output coupled mains supply circuit can drag beam pumping unit 7 electric power that asynchronous motor 6 sends and feed back to electrical network.
Also can connect bleeder 8 at frequency variator 5 rectification output ends, bleeder 8 is made up of inversion module K and braking resistor 8.1 or well head heater 8.2, beam pumping unit 7 is dragged the electric power that asynchronous motor 6 sends release.
The utility model working procedure is: gather motor voltage and the signal of electric current and the position signal that sensor 2 is gathered pumping unit by measuring transducer 1,4 pairs of signals that collect of programmable controller are handled and are judged relatively with specified criteria whether pumping unit is in and find time, states such as overload or disconnected bar, programmable controller 4 is passed to frequency variator 5 to the control signal after handling, the control signal of 5 pairs of inputs of frequency variator is made a response, final control signal is passed to motor 6, be converted to pumping of pumping unit 7 horse heads by fourbar linkage, motor is in the electric energy that produces under the braking state to be handled through bleeder 8 or energy feedback device 9.Sensor flows in this closed loop to the signal that collects, and synchronous signal is processed and at programmable controller 4 and specified criteria relatively in each link, final control, adjusts motor and rotatablely moves, and also controls the variable motion of pumping unit horsehead 7.
The utility model electric current and voltage transducer 1 adopt WB212, WB122 type respectively, limit sensors 2 models are Hall switch LP202CD, programmable controller 4 is selected the IPL1612A type of the parallel Mechanology Inc. of the U.S. for use, and frequency variator 5 is selected the FRENIC5000P7 series of Japanese fuji company for use.
Load character by pumping unit inevitably produces negative torque as can be known on crankshaft in movement process, negative torque is passed through speed reducer, belt passes to motor main shaft, the rotation of drive motor, at this moment motor has become generator, the electric energy that sends can not pour into frequency variator, otherwise can burn out frequency variator, so the energy bleeder must be installed, principle is: threephase AC becomes direct current through the rectification of three phase full wave rectification module, direct current is added on the large capacitor, the high power transistor (GTR) inversion module is converted into Ac to direct current again, be added on the asynchronous motor 5, as electric energy when inversion module pours into capacitor, detect and controlled discharge electric energy or feed back to electrical network through electric energy bleeder 8 by energy feedback device 9, the electric energy two kinds of methods of having released: first kind of drainage method is to consume on braking resistor 8.1, second kind of drainage method is to be used for the well head heating by well head heating equipment 8.2, these two kinds of drainage methods can be selected according to the oil well concrete condition, first method is fairly simple, invest lessly, it is fine that second method is applied to the thick oil well effect.
Claims (3)
1, a kind of beam pumping unit intelligence controlling device, it is by electric current and voltage transducer (1), limit sensors (2), programmable controller (4), frequency variator (5), asynchronous motor (6), beam pumping unit (7), bleeder (8), energy feedback device (9) is formed, it is characterized in that: go up at asynchronous motor (6) electric current and voltage transducer (1) are installed, beam pumping unit (7) is gone up limit sensors (2) is installed, electric current and voltage transducer (1) output terminal, limit sensors (2) output terminal is connected with programmable controller (4), programmable controller (4) output terminal connects frequency variator (5), and control frequency variator (5) is regulated asynchronous motor (6) rotating speed.
2, a kind of beam pumping unit intelligence controlling device according to claim 1, it is characterized in that: can connect energy feedback device (9) at frequency variator (5) rectification output end, energy feedback device (9) is an inversion module, its output coupled mains supply circuit can drag beam pumping unit (7) electric power that asynchronous motor (6) sends and feed back to electrical network.
3, according to claim 1,2 described a kind of beam pumping unit intelligence controlling devices, it is characterized in that: with can be connected bleeder (8) at frequency variator (5) rectification output end, bleeder (8) is made up of inversion module (K) and braking resistor (8.1) or well head heater (8.2), beam pumping unit (7) is dragged the electric power that asynchronous motor (6) sends release.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96201939 CN2259509Y (en) | 1996-02-06 | 1996-02-06 | Intelligent controlling device for beam pumping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96201939 CN2259509Y (en) | 1996-02-06 | 1996-02-06 | Intelligent controlling device for beam pumping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2259509Y true CN2259509Y (en) | 1997-08-13 |
Family
ID=33888068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96201939 Expired - Fee Related CN2259509Y (en) | 1996-02-06 | 1996-02-06 | Intelligent controlling device for beam pumping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2259509Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216215A (en) * | 2012-08-21 | 2013-07-24 | 东营胜利高原有限公司 | Intelligent control system of pumping unit |
-
1996
- 1996-02-06 CN CN 96201939 patent/CN2259509Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216215A (en) * | 2012-08-21 | 2013-07-24 | 东营胜利高原有限公司 | Intelligent control system of pumping unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |