CN103296964A - Novel multi-functional energy-saving frequency converting control device for oil field pumping unit - Google Patents
Novel multi-functional energy-saving frequency converting control device for oil field pumping unit Download PDFInfo
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- CN103296964A CN103296964A CN2013102330463A CN201310233046A CN103296964A CN 103296964 A CN103296964 A CN 103296964A CN 2013102330463 A CN2013102330463 A CN 2013102330463A CN 201310233046 A CN201310233046 A CN 201310233046A CN 103296964 A CN103296964 A CN 103296964A
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Abstract
The invention relates to a novel multi-functional energy-saving frequency converting control device for an oil field pumping unit. The device is provided with a control cabinet, an isolated contactor, a control motor contactor (power frequency), a control motor axial flow fan contactor, a circuit breaker, a control circuit breaker, a control frequency converter circuit breaker, a frequency converter, a programmable logic controller (PLC), an upper limit sensor, a lower limit sensor, a motor parameter display, a power frequency indicating lamp, a frequency converting indicating lamp, a control axial flow fan change-over switch, a power-frequency/frequency-converting change-over switch, a motor power frequency starting button, an isolated contactor starting button, an isolated contactor stop button, a frequency converter operation button, a motor power frequency stop button and a speed regulator potentiometer, wherein the isolated contactor, the control motor contactor (power frequency), the control motor axial flow fan contactor, the circuit breaker, the control circuit breaker, the control frequency converter circuit breaker, the frequency converter, the PLC, the upper limit sensor, the lower limit sensor, the motor parameter display, the power frequency indicating lamp, the frequency converting indicating lamp, the control axial flow fan change-over switch, the power-frequency/frequency-converting change-over switch, the motor power frequency starting button, the isolated contactor starting button, the isolated contactor stop button, the frequency converter operation button, the motor power frequency stop button and the speed regulator potentiometer are arranged in the control cabinet. The device is complete in control functions, low in cost and fault rate, high in automation, energy-saving and suitable for the oil field pumping machine or other impact load situations.
Description
Technical field
The present invention relates to oil field control field, the specifically energy-conservation used for oil-field oil pumper frequency-converting control device of a kind of Multifunction.
Background technology
The power consumption of motor accounts for more than 50% of total electricity consumption in the whole nation; therefore the raising of electric motor system efficiency level can be saved a large amount of electric weight has positive role to the development of the national economy, environmental protection, energy savings; countries in the world are all paid much attention to electric motor system is energy-conservation at present; oil pumper is the main machinery of oilfield exploitation at present; its power consumption accounts for more than 40% of the total electricity consumption in oil field, and system effectiveness is very low.As everyone knows, varying load when pump load is, the branch that dynamic and static load characteristic is arranged, its starting torque is 3～4 times of actual loading during starting, when selecting common motor for use, select for use big starting torque then must not match with load factor, power, i.e. so-called " low load with strong power " when power is far below starting during load.Excessive motor power (output) must make the relative inactivity of oil pumper increase, and causes grid electricity fee cost high, energy waste.
Summary of the invention
The objective of the invention is provides a kind of Multifunction energy-conservation used for oil-field oil pumper frequency-converting control device in order to overcome the deficiency of existing oil-field oil pumper control device.This installs by control cubicle, compositions such as circuit breaker, control motor contactor (power frequency), control frequency converter contactor, control motor shaft flow fan contactor, control loop circuit breaker, frequency converter, PLC, parameter of electric machine display, transducer, control button, change over switch.It is characterized in that the operation by PLC control frequency converter, starting or stoping and normally operation of frequency converter operation back control motor, after the normal operation of motor, the upper limit transducer that is installed on the oil pumper detects different signals respectively and signal is sent to PLC with the lower limit transducer, PLC handles according to the unlike signal that receives, and according to result control frequency converter, frequency converter receives behind the signal of PLC and then the control motor drives the oil pumper running with the upstroke rotating speed different with down stroke.This installation cost is low, and automaticity height, failure rate be low, can adjust rotating speed automatically, thereby the power factor of automatic adjustment system is to reach purpose of energy saving.Use on the particularly suitable oil-field oil pumper.
The present invention can reach by following measure:
The energy-conservation used for oil-field oil pumper frequency-converting control device of a kind of Multifunction, this device are provided with control cubicle and are arranged on the interior isolation contactor of control cubicle, control motor contactor (power frequency), control motor shaft flow fan contactor, circuit breaker, the control loop circuit breaker, control frequency converter circuit breaker, frequency converter, PLC, the upper limit transducer, the lower limit transducer, parameter of electric machine display, the power frequency indicator light, the frequency conversion indicator light, Control Shaft flow fan change over switch, power frequency/frequency conversion change over switch, motor power frequency start button, isolate the Contactor Starting button, isolate the contactor stop button, frequency converter operation button, motor power frequency stop button, the speed regulator potentiometer.
Be primarily characterized in that this device is provided with frequency conversion and two kinds of operational modes of power frequency, at first frequency converter carried out electric current, the setting of voltage, frequency, multistage speed and various protection parameters.Start to isolate contactor itself and power frequency supply isolated, the operation frequency converter regulate the speed potentiometer by machine operation in the required range of speeds.The used for oil-field oil pumper motor mostly is operated in two kinds of different operating states as you know, upstroke is to be operated in motoring condition, down stroke is operated in the electromagnetic braking state, therefore the upper limit transducer that is installed in when oil pumper runs to top dead-centre on the oil pumper sends to PLC with signal, and PLC controls the motor operation through the processing controls frequency converter with second section speed output.When the following transducer that is limited to that is installed on the oil pumper sends to PLC with signal, PLC controls the motor operation through the processing controls frequency converter with first section speed output, circulate to guarantee that with this pumping-unit motor is operated under the motoring condition always, thereby whole used for oil extractor frequency-converting control device is operated under the higher efficient and average power factor, and oil pumper motor in upstroke and down stroke process is operated in motoring condition always can make the efficient of oil pumper significantly improve, and therefore uses significantly saves energy of this device.Because this device can make the motor motoring condition of working, and can save the feedback braking unit, and manufacturing cost is significantly reduced always, avoid again containing the electric energy of humorous wave height to pollute electrical network to the electrical network feedback.Consider that simultaneously the oil pumper major part all is to work in the open air; need lot of manpower and material resources that it is managed; therefore this converter plant also is provided with manual and automatic power frequency operation function; when in a single day frequency converter breaks down; frequency converter failure instruction output action; converter plant is transformed into power frequency operation automatically by the control of PLC, has well solved the situation of in the past often shutting down.Owing to adopted PLC and frequency converter can also make each oil pumper and host computer communication, unified management is carried out in monitoring in real time.It is multiple functional that the energy-conservation frequency-converting control device of this Multifunction has control, and cost is low, failure rate is low, automaticity is high, energy-efficient.Particularly suitable used for oil-field oil pumper or other impact load are closed use.
Description of drawings
Accompanying drawing is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described:
As shown in the figure, the energy-conservation used for oil-field oil pumper frequency-converting control device of a kind of Multifunction is provided with control cubicle 1 and the isolation contactor 2 that is arranged in the control cubicle 1, control motor contactor (power frequency) 3, control motor shaft flow fan contactor 4, circuit breaker 5, control loop circuit breaker 6, control frequency converter contactor 7, frequency converter 8, PLC 9, shielded type cable 10, upper limit transducer 11, under be limited to transducer 12, power frequency indicator light 13, parameter of electric machine display 14, frequency conversion indicator light 15, Control Shaft flow fan change over switch 16, power frequency/frequency conversion change over switch 17, motor power frequency start button 18, isolate Contactor Starting button 19, frequency converter operation button 20, motor power frequency stop button 21, isolate contactor stop button 22, speed regulator potentiometer 23.
This device principal character one: circuit breaker, control loop circuit breaker in the control cubicle that closes, the running of control motor shaft flow fan contactor adhesive motor shaft flow fan, PLC powers on simultaneously.Press and isolate the Contactor Starting button, isolate contactor adhesive, frequency converter and power frequency supply and isolate.Power frequency/frequency conversion change over switch is turned to the frequency conversion position, press frequency converter operation button, frequency converter brings into operation, the governing speed potentiometer make machine operation at required rotating speed to guarantee oil pumper jig frequency work on request.The upper limit transducer that is installed in when oil pumper runs to top dead-centre on the oil pumper sends to PLC with signal, and PLC controls the motor operation through the processing controls frequency converter with second section speed output.When the following transducer that is limited to that is installed on the oil pumper sends to PLC with signal, PLC controls the motor operation through the processing controls frequency converter with first section speed output, circulate to guarantee that with this pumping-unit motor is operated under the motoring condition always, thereby whole used for oil extractor frequency-converting control device is operated under the higher efficient and average power factor, and oil pumper motor in upstroke and down stroke process is operated in motoring condition always can make the efficient of oil pumper significantly improve, and therefore uses significantly saves energy of this device.Because this device can make the motor motoring condition of working, and can save the feedback braking unit, and manufacturing cost is significantly reduced always, avoid again containing the electric energy of humorous wave height to pollute electrical network to the electrical network feedback.
This device principal character two: the oil-field oil pumper major part all is to work in the open air, needs lot of manpower and material resources that it is managed, so this converter plant also is provided with manual and automatic power frequency operation function.Power frequency/frequency conversion change over switch is turned to the power frequency position, press motor power frequency start button, the adhesive of control motor contactor (power frequency), motor is pressed motor power frequency stop button with power frequency operation, and motor is out of service.Simultaneously when in a single day frequency converter breaks down, frequency converter failure instruction output action, converter plant is transformed into power frequency operation automatically by the control of PLC, has well solved the situation of in the past often shutting down.Owing to adopted PLC and frequency converter can also make each oil pumper and host computer communication, unified management is carried out in monitoring in real time.It is multiple functional that the energy-conservation frequency-converting control device of this Multifunction has control, and cost is low, failure rate is low, automaticity is high, energy-efficient.Particularly suitable used for oil-field oil pumper or other impact load occasion are used.
Claims (3)
1. energy-conservation used for oil-field oil pumper frequency-converting control device of Multifunction, this device are provided with control cubicle and are arranged on isolation contactor in the control cubicle, control motor contactor (power frequency), control motor shaft flow fan contactor, circuit breaker, the control loop circuit breaker, control frequency converter circuit breaker, frequency converter, PLC, the upper limit transducer, the lower limit transducer, parameter of electric machine display, the power frequency indicator light, the frequency conversion indicator light, Control Shaft flow fan change over switch, power frequency/frequency conversion change over switch, motor power frequency start button, isolate the Contactor Starting button, isolate the contactor stop button, frequency converter operation button, motor power frequency stop button, the speed regulator potentiometer.
2. the energy-conservation used for oil-field oil pumper frequency-converting control device of Multifunction according to claim 1; it is characterized in that: this device is provided with frequency conversion function; at first frequency converter is carried out electric current; voltage; frequency; the setting of multistage speed and various protection parameters; starting the isolation contactor isolates itself and power frequency supply; the operation frequency converter regulate the speed potentiometer by machine operation in the required range of speeds; the used for oil-field oil pumper motor mostly is operated in two kinds of different operating states; upstroke is to be operated in motoring condition; down stroke is operated in the electromagnetic braking state; therefore the upper limit transducer that is installed in when oil pumper runs to top dead-centre on the oil pumper sends to PLC with signal; PLC controls the motor operation through the processing controls frequency converter with second section speed output; when the following transducer that is limited to that is installed on the oil pumper sends to PLC with signal; PLC controls the motor operation through the processing controls frequency converter with first section speed output; circulate to guarantee that with this pumping-unit motor is operated under the motoring condition always; thereby whole used for oil extractor frequency-converting control device is operated under the higher efficient and average power factor; and oil pumper motor in upstroke and down stroke process is operated in motoring condition always can make the efficient of oil pumper significantly improve; therefore use significantly saves energy of this device; because this device can make the motor motoring condition of working always; can save the feedback braking unit; manufacturing cost is significantly reduced, avoid again containing the electric energy of humorous wave height to pollute electrical network to the electrical network feedback.
3. the energy-conservation used for oil-field oil pumper frequency-converting control device of Multifunction according to claim 1; it is characterized in that: this device is provided with the power frequency function; be provided with manual and automatic power frequency operation function; when in a single day frequency converter breaks down; frequency converter failure instruction output action; converter plant is transformed into power frequency operation automatically by the control of PLC; well solved the situation of in the past often shutting down; owing to adopted PLC and frequency converter can also make each oil pumper and host computer communication, unified management is carried out in monitoring in real time.
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| CN2013102330463A CN103296964A (en) | 2013-06-13 | 2013-06-13 | Novel multi-functional energy-saving frequency converting control device for oil field pumping unit |
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| CN2013102330463A CN103296964A (en) | 2013-06-13 | 2013-06-13 | Novel multi-functional energy-saving frequency converting control device for oil field pumping unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024623A (en) * | 2015-07-03 | 2015-11-04 | 广西鱼峰水泥股份有限公司 | Method for shortening fault time of sack-making machine |
| CN108365538A (en) * | 2018-05-18 | 2018-08-03 | 株洲联诚集团控股股份有限公司 | A kind of electronic engineering machinery power distribution cabinet |
| CN110952955A (en) * | 2018-09-26 | 2020-04-03 | 中国石油化工股份有限公司 | Automatic control device for operation of oil pumping unit and energy-saving method |
| CN117060684A (en) * | 2023-10-11 | 2023-11-14 | 山西美锦氢能开发有限公司 | Automatic fault power frequency cutting device for high-voltage frequency converter and working method thereof |
-
2013
- 2013-06-13 CN CN2013102330463A patent/CN103296964A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024623A (en) * | 2015-07-03 | 2015-11-04 | 广西鱼峰水泥股份有限公司 | Method for shortening fault time of sack-making machine |
| CN108365538A (en) * | 2018-05-18 | 2018-08-03 | 株洲联诚集团控股股份有限公司 | A kind of electronic engineering machinery power distribution cabinet |
| CN108365538B (en) * | 2018-05-18 | 2024-03-12 | 株洲联诚集团控股股份有限公司 | Power distribution cabinet for electric engineering machinery |
| CN110952955A (en) * | 2018-09-26 | 2020-04-03 | 中国石油化工股份有限公司 | Automatic control device for operation of oil pumping unit and energy-saving method |
| CN110952955B (en) * | 2018-09-26 | 2023-06-20 | 中国石油化工股份有限公司 | Automatic control device for operation of oil pumping unit and energy saving method |
| CN117060684A (en) * | 2023-10-11 | 2023-11-14 | 山西美锦氢能开发有限公司 | Automatic fault power frequency cutting device for high-voltage frequency converter and working method thereof |
| CN117060684B (en) * | 2023-10-11 | 2024-01-05 | 山西美锦氢能开发有限公司 | Automatic fault power frequency cutting device for high-voltage frequency converter and working method thereof |
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Application publication date: 20130911 |