CN206546517U - A kind of oil-field oil pumper energy-saving control system - Google Patents
A kind of oil-field oil pumper energy-saving control system Download PDFInfo
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- CN206546517U CN206546517U CN201720171180.9U CN201720171180U CN206546517U CN 206546517 U CN206546517 U CN 206546517U CN 201720171180 U CN201720171180 U CN 201720171180U CN 206546517 U CN206546517 U CN 206546517U
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Abstract
The utility model discloses a kind of oil-field oil pumper energy-saving control system, including PLC module, frequency converter, energy feedback unit and data acquisition unit, the PLC module, frequency converter and energy feedback unit are in the switch board of electric control chamber, the frequency converter is connected by way of RS485 with PLC module, the input of the energy feedback unit is connected with frequency converter, its output end is connected with electric network source, the data acquisition unit is connected with PLC module, and the utility model realizes that oil pumper is energy-efficient to be automatically controlled.
Description
Technical field
The utility model is related to oilfield exploitation technical field, and in particular to a kind of oil-field oil pumper energy-saving control system.
Background technology
Oil pumper is a kind of cycle cycling alternating load, with impact, and rotary inertia is larger, and is that bringing onto load is started, because
This required starting torque is larger, and the motor power (output) of demand is also larger.Oil pumper fluctuation of load in a cycle is very big, in order to
Meet start request, it is ensured that oil pumper larger inertia torque can be overcome during loaded starting so that there are enough overloads during operation
Ability, to overcome the peak torque of alternate load, it is desirable to leave enough surpluses when selecting motor, this results in oil pumping
The motor of machine is often in the operation conditions of " low load with strong power ", and motor is in oil pumper running in underloading
State, rate of load condensate is very low, and the operational efficiency of motor is very low.In oil pumper running, the size and phase of motor electric current
It is also what is be continually changing in a jig frequency, there are two moment generating states in a jig frequency.It is negative that motor belongs to perception
Carry, current hysteresis causes to produce reactive current, power factor is smaller, also results in the waste of electric energy after voltage.On the other hand, when
The drive motor of transducer drive oil pumper is during braking or transferring potential energy loading high, and motor is in regenerative braking
Mechanical energy in state, transmission system is converted into electric energy, frequency converter fly-wheel diode by this energy feedback by motor
Into frequency converter DC bus capacitor C, DC voltage is raised, produce pumping voltage, if discharging this portion of energy not in time,
Frequency converter overvoltage protection will certainly be caused to act or cause the excessive pressure damages of major loop high power device.Pumping voltage passes through resistance
Dissipation energy, not only wastes the energy, and some side effects can be also produced sometimes.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is to provide a kind of oil pump energy-saving control system
System, realizes the energy-efficient purpose automatically controlled.
What the technical solution of the utility model was realized in：
A kind of oil-field oil pumper energy-saving control system, including PLC module, frequency converter, energy feedback unit and data acquisition
Unit, the PLC module, frequency converter and energy feedback unit are in the switch board of electric control chamber, and the frequency converter passes through RS485
Mode be connected with PLC module, the PLC module is returned by the start and stop of Frequency Converter Control oil pumper motor, the energy
The input of feedback unit is connected with frequency converter, and its output end is connected with electric network source, and the data acquisition unit connects with PLC module
Connect.
Further, the data acquisition unit includes weighing sensor, load and angular displacement sensor and intelligent electric meter, institute
State re-transmission sensor and load and angular displacement sensor and run scene located at oil pumper, the intelligent electric meter is located at the control of electric control chamber
In cabinet, the weighing sensor is connected by Analog input mModule with PLC module, and the load and angular displacement sensor pass through
Zigbee module is connected with PLC module, and the intelligent electric meter is connected by way of RS485 with PLC module.
Further, the data acquisition unit also includes weighing sensor single well metering device, the single well metering device
Scene is run located at oil pumper, the single well metering device is connected by way of RS485 with PLC module.
Further, in addition to HMI, the HMI located at electric control chamber switch board in, and by way of RS485 with PLC moulds
Block is connected.
Further, in addition to upper monitoring terminal, the upper monitoring terminal is connected by communication module with PLC module.
Further, the communication module includes GRM wireless terminals, industrial grade switch and wireless router.
Further, the upper monitoring terminal includes mobile terminal of mobile telephone and PC terminals.
The beneficial effects of the utility model are：
(1) a kind of oil-field oil pumper energy-saving control system of the present utility model, PLC module is gathered according to weighing sensor
The electrical parameter of the oil pumper motor operation of oil well liquid output beam and intelligent electric meter collection judges whether that needs are started or stoped and taken out
Oil machine, and by the startup and stopping of Frequency Converter Control oil pumper motor, oil pumper fortune is driven with oil pumper motor
It is dynamic, the operation of oil pumper automatic intermittent is realized, the purpose of Energy Saving Control has been reached.
(2) input of energy feedback unit is connected with frequency converter, and its output end is connected with electric network source, when under oil pumper
During row, the alternating current that oil pumper mechanical energy is produced is converted into direct current by frequency converter, and energy feedback unit then leads to direct current energy
Cross the AC energy that PSG inversion transformation techniques are converted into same frequency same-phase, so 97.5% regenerative electric energy feedback to local power net,
Used for neighbouring equipment, energy feedback unit replaces resistive braking completely, more efficient, export pure sine wave, feedback is clean all the time
Net electric energy, power saving rate is up to 20%.
(3) upper monitoring terminal and PLC module are connected by communication module, communication module includes GRM wireless terminals, industry
Level interchanger and wireless router, upper monitoring terminal include mobile terminal of mobile telephone and PC terminals, realize long distance wireless data
Transmission, remote control operation, make the system can be used for the oil-field oil pumper control of unattended, wild environment, regular patrol etc..
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of oil-field oil pumper energy-saving control system；
Fig. 2 is oil pumper motor main circuit electrical schematic diagram；
Fig. 3 is that oil pumper motor controls circuit electrical schematic diagram；
Fig. 4 is that electronic band-type brake controls circuit electrical schematic diagram；
Fig. 5 is a kind of flow chart of oil-field oil pumper energy-saving control method；
Embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, with reference to of the present utility model
Accompanying drawing, clear, complete description is carried out to the technical solution of the utility model, based on the embodiment in the application, this area is general
Other class be the same as Examples that logical technical staff is obtained on the premise of creative work is not made, should all belong to the application
The scope of protection.
Embodiment one：
As shown in figure 1, a kind of oil-field oil pumper energy-saving control system, including PLC module, frequency converter, energy feedback unit,
Data acquisition unit, HMI and upper monitoring terminal, the PLC module, frequency converter, energy feedback unit and HMI are located at electric control chamber
Switch board in, the frequency converter and HMI are connected by way of RS485 with PLC module；The data acquisition unit includes claiming
Sensor, load and angular displacement sensor, intelligent electric meter and single well metering device are retransmitted, the weighing sensor is located at oil pumper machine
Side, is connected with entering flowline, is connected by Analog input mModule with PLC module, for continuing liquid weight (i.e. oil well liquid output amount)
Detection；The load and angular displacement sensor are connected on the walking beam of oil pumper by Zigbee module and PLC module
Connect, the detection for the angular displacement in sucker rod load and oil pumper stroke；The individual well strength unit is located at by oil pumper machine,
It is connected, is connected by way of RS485 with PLC module with entering flowline, for the actual continuous liquid measure of oil pumper, continuous liquid time, oil
(day, the moon, total) yield, oil-containing with liquid than etc. detection；The intelligent electric meter passes through in the switch board of electric control chamber
RS485 mode is connected with PLC module, the detection for electrical parameter in oil pumper running；The upper monitoring terminal is led to
Cross communication module to be connected with PLC module, the communication module includes GRM wireless terminals, industrial grade switch and wireless router,
The upper monitoring terminal includes mobile terminal of mobile telephone and PC terminals, and input and the frequency converter of the energy feedback unit connect
Connect, its output end is connected with electric network source.
Said structure realizes the remote transmission of oil pumper service data and the remote operation control of oil pumper, makes the system
Oil-field oil pumper available for unattended, wild environment, regular patrol etc. is controlled.
As shown in Fig. 2 oil pumper motor main circuit, the oil pumper motor main circuit include intelligent electric meter,
Circuit breaker Q F1, oil pumper motor power frequency operation main circuit, oil pumper motor converting operation main circuit and energy feedback
Unit, the intelligent electric meter is connected to AC380V ends of incoming cables, and the intelligent electric meter is connected by RS485 contacts with PLC module, this
Embodiment intelligent electric meter is preferably the electric acquisition module of EDA9033AC three-phase main-frequencies, and the circuit breaker Q F1 is the main open circuit of main circuit
Device, controls the break-make of whole main circuit power, and its main contact end of incoming cables is connected to after intelligent electric meter, and its main contact leading-out terminal connects
Connect oil pumper motor power frequency operation main circuit and oil pumper motor converting operation main circuit.
The oil pumper motor power frequency operation main circuit includes circuit breaker Q F2, contactor KM2 and electrothermal relay FR,
The circuit breaker Q F2 main contacts end of incoming cables is connected with circuit breaker Q F1 main contact leading-out terminals, circuit breaker Q F2 main contacts leading-out terminal with
Contactor KM2 main contacts end of incoming cables is connected, and contactor KM2 main contacts leading-out terminal passes through electrothermal relay FR and oil pumper motor
Power inleting terminal is connected.
The oil pumper motor converting operation main circuit include frequency converter, contactor KM1, contactor KM3, it is middle after
Electrical equipment KA1 and auxiliary reclay KA2, the contactor KM1 main contacts end of incoming cables is connected with circuit breaker Q F1 main contact leading-out terminals,
Contactor KM1 main contacts leading-out terminal is connected with frequency converter R, S, T contact, frequency converter U, V, W contact and oil pumper motor electricity
Source end of incoming cables is connected, and contactor KM3 normally opened auxiliary contact is connected between the frequency converter X1 contacts and COM contacts, is used for
The startup and closing of frequency converter are controlled, auxiliary reclay KA1 line is connected between the frequency converter TA contacts and+24v contacts
Circle, for exporting frequency converter operation configured information, auxiliary reclay is connected between the frequency converter Y1 contacts and+24v contacts
KA2 coil, for exporting oil pumper main circuit fault message, the frequency converter is connected by RS485 contacts with PLC module,
The present embodiment frequency converter is preferably four quadrant running frequency converter, and selects Speedless sensor quality controling mode to control oil pumping
Machine motor run, in the case of can so ensureing no oil pumper motor speed feedback, torque also can quick response, and
And can also obtain sufficiently large torque when oil pumper motor low speed is run.
The end of incoming cables of the energy feedback unit and the DC+ contacts of frequency converter and DC- contacts are connected, its leading-out terminal and open circuit
The leading-out terminal connection of device QF1 main contacts, when stroke, which proceeds to a certain degree, the situation of oil pumper drive motor occurs, then
Motor is closed, the purpose for reaching energy-conservation is slided using oil pumper, that is, adjusts not speed governing all to save, now frequency converter will drive electricity
The alternating current that machine mechanical energy is produced is converted into direct current, and energy feedback unit is then changed direct current energy by PSG inversion transformation techniques
Into the AC energy of same frequency same-phase, so 97.5% regenerative electric energy feedback to local power net, used for neighbouring equipment, energy
Amount feedback unit can replace resistive braking completely, more efficient, export pure sine wave, and the cleaning electric energy of feedback all the time, power saving rate is high
Up to 20%.
As described in Figure 3, oil pumper motor control circuit, the oil pumper motor control circuit includes in parallel connect
It is connected to oil pumper motor converting operation first control circuit, oil pumper motor converting operation between AC220V power lines
Second control circuit, oil pumper motor power frequency operation control circuit, converter power supply indicating circuit, converting operation indicate electricity
Road, power frequency operation indicating circuit and failure indicating circuit, the oil pumper motor control circuit also include being serially connected with
The fuse FU1 of AC220V power firestreaks one end.
The oil pumper motor converting operation first control circuit include the rotary switch SA0 that is sequentially connected in series and
Contactor KM1 coil, the present embodiment rotary switch SA0 is preferably without automatically reset rotary switch, the oil pumper driving
Motor frequency conversion operation second control circuit includes 3,4 contacts, the first PLC output points for the rotary switch SA1 being sequentially connected in series
1st, contactor KM2 normally closed auxiliary contact and contactor KM3 coil, 3,4 contacts of the rotary switch SA1 also pass through numeral
The connection of input module and PLC module is measured, the oil pumper motor power frequency operation control circuit includes being sequentially connected in series
Rotary switch SA1 1,2 contacts, normally closed button SB2, normally opened button SB1, contactor KM3 normally closed auxiliary contact, contactor
KM2 coil and electrothermal relay FR1 normally closed auxiliary contact, the normally opened button SB1 are also parallel with the normally opened auxiliary of contactor KM2
Help contact, the change-over switch, the present embodiment rotary switch SA1 is preferably universal seclector.
The operation of oil pumper motor is firstly the need of close circuit breaker QF1, if desired oil pumper motor power frequency operation,
Then close circuit breaker QF2, goes to 1,2 contact one end by change-over switch SA1 and switches it on, contactor KM2 when pressing button SB1
Coil obtains electric, and its main contact closure, oil pumper motor obtains electric, starts power frequency operation, contactor KM2 when pressing button SB2
Coil losing electricity, its main contact disconnects, and oil pumper motor stops, and contactor KM2 normally opened auxiliary contact is used for self-locking, connects
Tentaculum KM3 normally closed auxiliary contact is used to interlock；If desired oil pumper motor converting operation, then close rotary switch first
SA0, contactor KM1 coil obtain electric, and its main contact closure, frequency converter obtains electric, change-over switch SA1 then is gone into 3,4 contacts
One end is switched it on, and PLC module reads its state by digital quantity input module and controls the first PLC output points 1 to close,
Contactor KM3 coil obtains electric, its normally opened auxiliary contact closure, starts frequency converter, this be frequency converter by RS485 buses with
PLC module communicates, its U, V, W contact control oil pumper motor converting operation.
The converter power supply indicating circuit includes normally opened auxiliary contact and the instruction for the contactor KM1 being sequentially connected in series
Lamp HG, when oil pumper motor converting operation, frequency converter obtains electric, and indicator lamp HG is bright；The converting operation indicating circuit bag
The normally opened auxiliary contact and indicator lamp HR1 for the auxiliary reclay KA1 being sequentially connected in series are included, its TA contact is defeated after frequency converter starts
Go out to control auxiliary reclay KA1 coil to obtain electric, auxiliary reclay KA1 normally opened auxiliary contact closure, indicator lamp HR1 is bright；Institute
Stating power frequency operation indicating circuit includes the KM2 being sequentially connected in series normally opened auxiliary contact and indicator lamp HR2, when oil pumper driving
During motor power frequency operation, indicator lamp HG is bright；The failure indicating circuit includes the normal of the auxiliary reclay KA2 being sequentially connected in series
Open auxiliary contact and indicator lamp HY2, the auxiliary reclay KA2 normally opened auxiliary contact it is also in parallel after electrothermal relay FR1 it is normal
Auxiliary contact are driven, when oil pumper motor power frequency operation, during motor overheating, relay FR1 normally opened auxiliary contact closure,
Indicator lamp HY1 is bright, when oil pumper motor converting operation, when breaking down, in the middle of frequency converter Y1 contact output controls after
Electrical equipment KA2 coil obtains electric, and indicator lamp HY1 is bright.
As shown in figure 4, electronic band-type brake control circuit, the electronic band-type brake control circuit include being sequentially connected in series in
Band-type brake coil control circuit and band-type brake coil between AC220v power lines, band-type brake coil control circuit include parallel with one another embrace
Brake cable circle industrial frequency control circuit and band-type brake coil frequency conversion control circuit, the band-type brake coil industrial frequency control circuit are provided with contactor
KM2 normally closed auxiliary contact, the band-type brake coil frequency conversion control circuit is provided with the normally closed auxiliary of contactor KM3 being sequentially connected in series
Contact and the 2nd PLC output points.
During oil pumper motor power frequency operation, closing oil pumper motor, contactor KM2 coil losing electricities, its is normally closed
Auxiliary contact are closed, and band-type brake coil obtains electric, start electronic band-type brake；During oil pumper motor converting operation, close oil pumper and drive
Dynamic motor, PLC module controls the first PLC output points to disconnect first, contactor KM3 coil losing electricities, its normally closed auxiliary contact closure,
PLC module controls the 2nd PLC output points to close again, and band-type brake coil obtains electric, starts electronic band-type brake.
The condition that PLC module controls the 2nd PLC output points to close is 2.5m<X<4.36m, the X is represented under reconnaissance relatively
Dead point displacement, calculation formula it is as follows：X=a (θ-θ0), a represents a=in walking beam on pumping units forearm length, the present embodiment in formula
3m, θ represent walking beam and the angle of vertical direction, are obtained by load and angular displacement sensor detection, θ0Represent to swim during bottom dead centre
The angle of beam and vertical direction.
Shutdown operation is carried out by way of electronic band-type brake, control is accurately positioned when realizing shutdown of pumping machine.
As shown in Fig. 1~5, a kind of oil-field oil pumper energy-saving control method comprises the following steps：
Rotary switch SA0 is closed, and rotary switch SA1 is gone into 3,4 contact one end and is switched it on, PLC module passes through number
Word amount input module reads the state of the 3 of rotary switch SA1,4 contact one end connection, and system enters Energy Saving Control pattern；
(preheating cycle is preheating cycle in System self-test time and warning time of fire alarming sum, the present embodiment after one preheating cycle
For 5min), PLC module reads the continuous liquid gravimetric value that weighing sensor is gathered by Analog input mModule, now, continues liquid weight
It is worth for 20kg, then the value and preheating are weighed, and (preheating is weighed to be determined according to the actual Liquid output of oil well, preheating title in the present embodiment
Weight is 10kg) compare, weighed more than preheating, PLC module starts oil pumper motor by frequency converter, drive oil pumper to start
Work；
In a cycle of operation, (cycle of operation of oil pumper operation for the first time is 5 in the present embodiment, and from oil pumper second
Secondary operation starts, after each run terminates, and the duration of the cycle of operation optimizes study) after, PLC module is defeated by analog quantity
Enter the continuous liquid gravimetric value that module reads weighing sensor collection, now, it is 14kg to continue liquid gravimetric value, then claims the value with shutting down
Weight (shutdown is weighed to be determined according to the actual Liquid output of oil well, is shut down in the present embodiment and is weighed as 10kg) compares, and is weighed more than shutdown；
Then PLC module by RS485 buses read the phase current of oil pumper motor, power factor that intelligent electric meter gathers, under
Stroke maximum current and upstroke maximum current, the wherein value of phase current are 10A, and the value of power factor is 0.4, and calculated equilibrium
The value of degree is that 105 (calculation formula of the degree of balance is：The degree of balance=down stroke maximum current/upstroke maximum current * 100%),
Then judge whether oil pumper is in light condition and (judges that oil pumper need to be while expire in light running state according to above-mentioned parameter
Sufficient three below condition：The degree of balance<85% or the degree of balance>115%, oil pumper phase current<9A, pumping unit power factor<0.3),
85%<The degree of balance<115%, phase current is>9A, power factor>0.3, judge that oil pumper is not in light condition；
Oil pumper was continued to run with after a cycle of operation, judged whether continuous liquid weight and oil pumper motor deliver state
Above-mentioned condition is met, is continued to run with if oil pumper if meeting above-mentioned condition and continues to repeat above-mentioned judgement after a cycle of operation, if
Being unsatisfactory for above-mentioned condition, then PLC module closes oil pumper motor by frequency converter, and is carried out using the mode of electronic band-type brake
Braking, then in an outage period, (shutdown is weighed and determines that outage period is in the present embodiment according to the actual Liquid output of oil well
After 10min), PLC module reads the continuous liquid gravimetric value that weighing sensor is gathered by Analog input mModule, then by continuous liquid weight
Value is weighed with preheating to be compared, and is repeated the above steps.
Oil pumper has run 3 cycles of operation altogether for the first time in the present embodiment, has run 4 operation weeks altogether for the second time
After phase, second of end of run of oil pumper, the duration of the cycle of operation optimizes study and calculated, and calculation formula is：T "=T
(nT) T " represents the duration after this oil pumper end of run cycle of operation Optimization Learning (in the present embodiment in/(mT'), formula
T " is the duration after second of end of run cycle of operation Optimization Learning of oil pumper), n represents that oil pumper is this time run and run altogether
Periodicity (n is that oil pumper runs the periodicity run altogether for the second time in the present embodiment, i.e. n be 4), T represent oil pumper this
(T is the duration of the cycle of operation of second of operation of oil pumper to the duration of the cycle of operation of secondary operation in the present embodiment, i.e. T is
5min), m represent oil pumper last time operation run altogether periodicity (in the present embodiment m be oil pumper last time operation altogether
3) periodicity of operation, i.e. m is, and T' represents that (T' is takes out in the present embodiment for the duration of the cycle of operation of oil pumper last time operation
The duration for the cycle of operation that oil machine is run for the first time, i.e. T' is 5min), T " (the present embodiment is calculated according to above-mentioned formula and parameter
Middle T " is the duration after second of end of run cycle of operation Optimization Learning of oil pumper) it is 6.7min.
If in oil pumper running, disconnecting rotary switch SA0 or rotary switch SA1 being gone into 1,2 contact one end and break
Opening 3,4 contact one end, then oil pumper directly jumps out Energy Saving Control pattern, if closing oil pumper by HMI or upper monitoring terminal,
Then oil pumper jumps out Energy Saving Control pattern after the current cycle of operation has been run.
A kind of oil-field oil pumper energy-saving control method of the present embodiment, by judging whether continuous liquid weight weighs more than preheating
Determine whether to start oil pumper, after oil pumper works a cycle of operation, judge whether continuous liquid weight is more than to shut down successively and claim
Whether weight and oil pumper are in light condition, are not more than that shutdown is weighed or oil pumper is closed if the light condition if continuous liquid weight
Oil pumper, and start oil pumper after an outage period, the Optimization Learning of the cycle of operation is carried out after oil pumper is closed, it is on the contrary
If continuous liquid weight is weighed more than shutdown and oil pumper is not at light condition, and system does not terminate operation, then oil pumper continues work
Make a cycle of operation above-mentioned judgement of repetition, realize operation of the oil pumper automatic intermittent from optimizing, reached Energy Saving Control
Purpose.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (7)
1. a kind of oil-field oil pumper energy-saving control system, it is characterised in that including PLC module, frequency converter, energy feedback unit and
Data acquisition unit, the PLC module, frequency converter and energy feedback unit are in the switch board of electric control chamber, the frequency converter
Be connected by way of RS485 with PLC module, the input of the energy feedback unit is connected with frequency converter, its output end with
Electric network source is connected, and the data acquisition unit is connected with PLC module.
2. a kind of oil-field oil pumper energy-saving control system as claimed in claim 1, it is characterised in that the data acquisition unit
Including weighing sensor, load and angular displacement sensor and intelligent electric meter, the re-transmission sensor and load and angular displacement sensor
Scene is run located at oil pumper, the intelligent electric meter is in the switch board of electric control chamber, and the weighing sensor passes through analog quantity
Input module is connected with PLC module, and the load and angular displacement sensor are connected by Zigbee module with PLC module, described
Intelligent electric meter is connected by way of RS485 with PLC module.
3. a kind of oil-field oil pumper energy-saving control system as claimed in claim 2, it is characterised in that the data acquisition unit
Also include weighing sensor single well metering device, the single well metering device runs scene, the one-well metering located at oil pumper
Device is connected by way of RS485 with PLC module.
4. a kind of oil-field oil pumper energy-saving control system as claimed in claim 1, it is characterised in that described also including HMI
HMI is connected in the switch board of electric control chamber by way of RS485 with PLC module.
5. a kind of oil-field oil pumper energy-saving control system as claimed in claim 1, it is characterised in that also whole including upper monitoring
End, the upper monitoring terminal is connected by communication module with PLC module.
6. a kind of oil-field oil pumper energy-saving control system as claimed in claim 5, it is characterised in that the communication module includes
GRM wireless terminals, industrial grade switch and wireless router.
7. a kind of oil-field oil pumper energy-saving control system as claimed in claim 5, it is characterised in that the upper monitoring terminal
Including mobile terminal of mobile telephone and PC terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720171180.9U CN206546517U (en) | 2017-02-24 | 2017-02-24 | A kind of oil-field oil pumper energy-saving control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720171180.9U CN206546517U (en) | 2017-02-24 | 2017-02-24 | A kind of oil-field oil pumper energy-saving control system |
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| CN206546517U true CN206546517U (en) | 2017-10-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109525157A (en) * | 2018-10-31 | 2019-03-26 | 贵州航天林泉电机有限公司 | A kind of energy conservation ultra long stroke beam-pumping unit control circuit |
| CN109944801A (en) * | 2019-04-03 | 2019-06-28 | 广州广涡精密科技有限公司 | A kind of single-phase scroll air compressor and control method |
| CN113323634A (en) * | 2020-12-03 | 2021-08-31 | 西安海联石化科技有限公司 | Intelligent intermittent pumping positioning starting and stopping method for oil pumping unit |
-
2017
- 2017-02-24 CN CN201720171180.9U patent/CN206546517U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109525157A (en) * | 2018-10-31 | 2019-03-26 | 贵州航天林泉电机有限公司 | A kind of energy conservation ultra long stroke beam-pumping unit control circuit |
| CN109944801A (en) * | 2019-04-03 | 2019-06-28 | 广州广涡精密科技有限公司 | A kind of single-phase scroll air compressor and control method |
| CN113323634A (en) * | 2020-12-03 | 2021-08-31 | 西安海联石化科技有限公司 | Intelligent intermittent pumping positioning starting and stopping method for oil pumping unit |
| CN113323634B (en) * | 2020-12-03 | 2022-04-12 | 西安海联石化科技有限公司 | Intelligent intermittent pumping positioning starting and stopping method for oil pumping unit |
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