CN2613928Y - Fully automatic power saving controller for oil pump - Google Patents

Fully automatic power saving controller for oil pump Download PDF

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Publication number
CN2613928Y
CN2613928Y CN 03233716 CN03233716U CN2613928Y CN 2613928 Y CN2613928 Y CN 2613928Y CN 03233716 CN03233716 CN 03233716 CN 03233716 U CN03233716 U CN 03233716U CN 2613928 Y CN2613928 Y CN 2613928Y
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China
Prior art keywords
oil
oil pumper
chip microcomputer
contactor
transformer
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Expired - Fee Related
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CN 03233716
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Chinese (zh)
Inventor
李德俊
刘统贵
刘薇
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Individual
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Individual
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Abstract

The utility model discloses a full-automatic save electricity controller for the pumping unit, comprising a current transformer (2), a transformer (3) and an alternating current contactor (4) connected with a master control machine (1). A breaker (5) is connected with the transformer (3) and the alternating current contactor (4), and the alternating current contactor (4) is connected with an electromotor (6). The utility model is characterized in that a sensor (7) provided at an oil tube is connected with the master control machine (1), the two comparative walls of the shell are respectively provided with a light emitter circuit (8) and a light receiving circuit (9), a central raw oil channel (10) is communicated with the oil tube, and the light receiving circuit (9) output is communicated with the master control machine (1).

Description

The full-automatic electricity-saving controller of oil pumper
Technical field
The utility model is relevant with the oil pumper power control unit, and is especially relevant with pumping unit controller.
Background technology
Recover the oil and all use oil pumper in China oil field.Under the situation of not using pumping unit controller, as long as to the oil pumper power supply, oil pumper has so both been wasted electric power resource no matter oil well has or not crude oil all working without cessation, and increases the oil pumper wearing and tearing again.For this reason, pumping unit controller arises at the historic moment.
Existing pumping unit controller all adopts method regularly to carry out the batch (-type) oil pumping, generally claims the oil pumper timing controller.Its design feature as shown in Figure 1.
The course of work of oil pumper timing controller: connect circuit breaker and give primary, A.C. contactor supplying power for input end.Transformer is transformed to low-voltage AC with the power electricity, provides power supply to main control computer.Timer is set the operating time, provides timing signal to main control computer, and main control computer output enabling signal was connected A.C. contactor when timing signal was arranged, and provides the power electricity to the motor of oil pumper, makes oil pumper work; During no timing signal, oil pumper quits work.At the oil pumper duration of work, D.C mutual-inductor offers main control computer with the electrodynamic induction current signal, and main control computer is judged whether phase shortage of power electricity according to this signal, whether short circuit of load (oil pumper), overload.If have phase shortage, short circuit, overload accident to take place, main control computer output stop signal disconnects A.C. contactor, cuts off the motor power electricity of oil pumper, and oil pumper is quit work.
The functional defect of oil pumper timing controller is as follows:
1, whether crude oil flows out can not to survey well mouth of oil well.Because without any transducer,, the oil pumper timing controller whether have crude oil to flow out so can not surveying well mouth of oil well.
2, influence oil well output.Because the oil pumper timing controller uses timer, the oil pumper timing controller may make oil pumper not work when oil well had oil, and oil well may make oil pumper quit work when not having oil.Can make the oil well oil pump capacity insufficient like this, influence oil well output.
3, do not reach desirable power savings.From long period (such as 5 years), the oil pump capacity of oil well can constantly extract and decline year by year with oil pumper ground.Because use timer, when the oil well oil reserve was not enriched, the oil pumper timing controller can make oil pumper make a large amount of idle works, wastes a large amount of electric power resources, does not so just reach desirable power savings.
4, be inconvenient to manage.Because the oil reserve of oil well descends year by year, (as 6 months) at set intervals need allow the operating time of oil pumper shorten, and therefore need to regulate the timing of oil pumper timing controller.The oilfield distributed pole is wide, and the operation more complicated of oil pumper timing controller, so, be inconvenient to manage.
The utility model content
Whether the purpose of this utility model provides a kind of oil well of surveying fuel-displaced and the work of control oil pumper is energy-conservation, is convenient to management, do not influence the full-automatic electricity-saving controller of oil pumper of oil well output.
The utility model is achieved in that
The utility model is the full-automatic electricity-saving controller of oil pumper, comprise the current transformer (2) that is connected with main control computer (1), transformer (3), A.C. contactor (4), circuit breaker (5) is connected with A.C. contactor (4) with transformer (3) is elementary, A.C. contactor (4) is connected with motor (6), (7) are connected with main control computer (1) to it is characterized in that transducer is arranged, transducer (7) places on the oil pipe, optical transmission circuit (8) and optical receiving circuit (9) are set respectively on relative two walls of its housing, the centre has crude oil oil feed passage (10) to communicate with oil pipe, and optical receiving circuit (9) output is connected with main control computer (1).
Optical transmission circuit (8) is by current-limiting resistor (R 16, R 17) and light-emitting diode (LED 3, LED 4) form, optical receiving circuit (9) is by current-limiting resistor (R24) and photo resistance (RX 1, RX 2) form photo resistance (RX 1, RX 2) output meet comparator (U 1) 2 pin, resistance (R 25, R 12) meet comparator (U 1) 3 pin, U 11 pin through diode (D 8) meet triode (Q 2) base stage, main control computer (1) is single-chip microcomputer (U 2), triode (Q 2) collector electrode meet (U 2) the P3.0 port.
Single-chip microcomputer (U 2) be the 89C2051 single-chip microcomputer, current transformer (2) is three-phase alternating current instrument transformer (T 2, T 3, T 4), it is exported through three bridge rectifier (B 1, B 2, B 3) after three cover capacitance-resistance smoothing circuits meet single-chip microcomputer (U respectively 2) P3.2, P3.3, P3.4 port, capacitance-resistance smoothing circuit comprise pressure limiting diode (DW 1, DW 2, DW 3), disturb and suppress electric capacity (C 12, C 11, C 10) and pull-down load resistance (R 8, R 9, R 10).
Circuit breaker (5) is air switch (K) and transformer (T 1) elementaryly be connected single-chip microcomputer (U with A.C. contactor (TOUCH) 2) P3.5 port and triode (Q 3) base stage connect triode (Q 3) emitter and power drive pipe (Q 4) base stage connect power drive pipe (Q 4) collector electrode and auxiliary relay (REL 1) connect REL 1TOUCH is connected with A.C. contactor.
Single-chip microcomputer (U 2) reset terminal RST and electrochemical capacitor (E 4) and resistance (R 7) connect its oscillator port (XTAL 1, XTAL 2) and quartz crystal (X 1) and capacitor (C 1, C 2) oscillator formed connects.
The full-automatic electricity-saving controller of oil pumper has following advantage:
Whether 1, it is fuel-displaced to survey oil well.Because the full-automatic electricity-saving controller of oil pumper has a sensor special.
2, can not influence oil well output.When oil was arranged, the full-automatic electricity-saving controller of oil pumper started oil pumper work, and when not having oil, the full-automatic electricity-saving controller of oil pumper stops oil pumper work.
3, can reach desirable power savings.When oil was arranged, the full-automatic electricity-saving controller of oil pumper started oil pumper work, and when not having oil, the full-automatic electricity-saving controller of oil pumper stops oil pumper work.Can not make oil pumper make idle work, can not waste electric power resource, so power savings is good.
4, convenient management.As long as each circuit connected and errorless after, air switch is closed a floodgate, whole oil pumping system (full-automatic electricity-saving controller of oil pumper and oil pumper) just can run well.So the manpower that needs is few, the time spent is few, convenient management.
Description of drawings
Fig. 1 is existing pumping unit controller block diagram.
Fig. 2 is a block diagram of the present utility model.
Fig. 3 is sensor construction figure.
Fig. 4 is circuit theory diagrams of the present utility model.
Embodiment
The course of work of the full-automatic electricity-saving controller of oil pumper: connect air switch and give primary, A.C. contactor supplying power for input end.Transformer is transformed to low-voltage AC with the power electricity, provides power supply to main control computer.At well head one sensor special is housed, the method for taking examination earlier to take out, the automatic detecting sensor signal of main control computer internal program sends the instruction of whether opening, stopping oil pumper work after the analytical calculation.If there is oily main control computer to send enabling signal, connect A.C. contactor, provide the power electricity to the motor of oil pumper, make oil pumper work; If no oily main control computer sends stop signal, disconnect A.C. contactor, make the motor of oil pumper can not get the power electricity, oil pumper quits work.Try again after waiting for a period of time to take out, control oil pumper work with this.At the oil pumper duration of work, D.C mutual-inductor offers main control computer with the electrodynamic induction current signal, and main control computer is judged whether phase shortage of power electricity according to this signal.If there is the phase shortage accident to take place, main control computer output stop signal disconnects A.C. contactor, cuts off the motor power electricity of oil pumper, and oil pumper is quit work.When short circuit, overload fault appearred in load (oil pumper), air switch also shielded.
Oil pumper automatically economize on electricity control electrical schematic diagram see Fig. 4.
Now be described in detail its operation principle in conjunction with the full-automatic electricity-saving controller circuit theory diagrams of oil pumper:
R 16, R 17Be current-limiting resistor, LED 3, LED 4Be light-emitting diode, by R 16, R 17LED 3, LED 4Form optical transmission circuit.R 24Be current-limiting resistor, RX 1, RX 2Be photo-resistor, by R 24, RX 1, RX 2Form optical receiving circuit.Optical transmission circuit and receiving circuit are installed on (see figure 3) in the crude oil oil feed passage.Have oil by the time, oil stream to rayed block, scattering, refraction effect, photo-resistor RX in the receiving circuit 1, RX 4Resistance value will change, this variation contains the data message of oil stream.When not having crude oil to pass through in the crude oil oil feed passage, what optical receiving circuit received is stable and uniform light signal, and this signal is sent into main control computer by monolithic.The machine process analysis is calculated back control A.C. contactor and is disconnected electrical source of power, make oil pumper stop the worker if having crude oil to pass through in the crude oil oil feed passage, optical receiving circuit will receive uneven light signal, this signal send into main control computer by the Single Chip Microcomputer (SCM) program analytical calculation after the control A.C. contactor connect electrical source of power oil pumper started working.
U 1Be comparator, with this message level (U the 2nd pin), and by resistor R 25, R 12Threshold level (the U that constitutes 1The 3rd pin) compares, by comparator U 1The 1st pin produces Transistor-Transistor Logic level, through diode D 8After the unidirectional conducting by resistor R 23Current limliting is delivered to triode Q 2Base stage.At triode Q 2The collector electrode output signal is to single-chip microcomputer U 2The P3.0 port, single-chip microcomputer U 2This signal is carried out analytical calculation.Resistor R 22Be triode Q 2Collector load resistor, capacitor C 13Be anti-High-frequency Interference electric capacity.
T 2, T 3, T 4Be current transformer, U, V, W three-phase alternating current are by D.C mutual-inductor T 2, T 3, T 4After be connected to A.C. contactor TOUCH input terminal, A.C. contactor TOUCH output is received motor of oil extractor M again 1Binding post on.When three-phase alternating current just often, the motor M of oil pumper 1Normal operation, three D.C mutual-inductor T 2, T 3, T 4Can send three road mutual voltages respectively through three bridge rectifier B 1, B 2, B 3Become direct voltage, respectively through electrolytic capacitor E 1, E 12, resistor R 6, R 1Electrolytic capacitor E 2, E 13, resistor R 2, R 4Electrolytic capacitor E 3, E 14, resistor R 3, R 5Three cover capacitance-resistance smoothing circuits become smooth dc voltage with pulsating dc voltage, deliver to single-chip microcomputer U more respectively 2Three ports of P3.2, P3.3, P3.4.DW in the three cover circuit 1, DW 2, DW 3Be respectively pressure limiting (voltage stabilizing) diode, effect is to prevent that three voltage level signals giving single-chip microcomputer from surpassing Transistor-Transistor Logic level, capacitor C 12, C 11, C 10Be High-frequency Interference system electric capacity, resistor R 8, R 9, R 10Be pull-down load resistance.If three-phase alternating-current supply lacks a phase or two phase times, three voltage levels will lack one or two, single-chip microcomputer U 2Detect and judge whether phase shortage from its P3.2, P3.3, three ports of P3.4.
U 2Be 89C2051 type single-chip microcomputer, PST is its reset terminal, resets by electrochemical capacitor E 4, resistor R 7Realize.XTAL 1, XTAL 2Be its oscillator port, this port is by quartz crystal X 1, capacitor C 1, C 2Form oscillator.As single-chip microcomputer U 2P3.0 port when receiving sensor signal, single-chip microcomputer U 2Internal processes can detect P3.2, P3.3 automatically, whether three port voltage level of P3.4 are normal.If normal, then by single-chip microcomputer U 2P3.5 port output high-level control signal, through resistor R 11Current limliting is delivered to triode Q 3Base stage, resistor R 20Be pull-up resistor, triode Q 3This voltage level is carried out electric current amplify the back by resistor R 21Current limliting is delivered to power drive pipe Q 4Base stage, power drive pipe Q 4The collector electrode output LOW voltage, auxiliary relay REL 1Line packet generation magnetic field, make the auxiliary relay closure of often making war, the 380V alternating current is added on the drive coil of A.C. contactor TOUCH simultaneously, makes the closing of contact of A.C. contactor TOUCH, and three-phase power electricity is added to motor of oil extractor M by A.C. contactor TOUCH closing contact 1Corresponding three phase mains terminals, motor M 1Entry into service behind the acquisition three-phase power electricity, oil pumper is just started working.Diode D 6With relay R EL 1The line bag also connects, and prevents that current reversal from impacting, protection power drive pipe Q 4, in order to avoid burn out.
Below three kinds of situations oil pumper is quit work:
1, has a power failure.At this moment, AC-less power, this machine is not worked, and oil pumper is not worked naturally yet.
2, phase shortage.If the three-phase power line phase shortage can cause motor to damage, therefore, can not allow motor operation.Since phase shortage, current transformer T 2, T 3, T 4In have a certain coil-induced less than ac voltage signal.Thereby, single-chip microcomputer U 2P3.2, P3.3, P3.4 in corresponding ports just can not get the normal voltage level signal, single-chip microcomputer U 2Can allow its P3.5 port output LOW voltage level controling signal after detecting.Like this, triode Q 3With power drive pipe Q 4Be in cut-off state, thereby, make auxiliary relay REL 1The contact disconnects, and can not provide 380V voltage to the drive coil of A.C. contactor TOUCH, and A.C. contactor TOUCH three-phase contact can not be closed, and the power electricity can not be given the motor M of oil pumper 1, therefore, oil pumper quits work.Simultaneously, single-chip microcomputer U 2P3.7 port output high level, through resistor R 13Current limliting is delivered to triode Q 5Base stage, resistor R 15Be pull-up resistor, triode Q 5Electric current amplifies the back by resistor R 14Current limliting is added to LED 2On, make LED 2Luminous.LED 2Play the phase shortage indicative function, at this moment, expression has open-phase fault.
If 3 power lines are phase shortage not, single-chip microcomputer U 2P3.2, P3.3, P3.4 port voltage level normal, but single-chip microcomputer U 2The P3.1 port can not get crude oil oil plant that transducer sends here by signal, single-chip microcomputer U 2The P3.5 port also can the output LOW voltage level controling signal, triode Q 3With power drive pipe Q 4Be in cut-off state, thereby, auxiliary relay REL contact is disconnected, can not provide 380V voltage to the drive coil of A.C. contactor TOUCH, A.C. contactor TOUCH three-phase contact can not be closed, and the power electricity can not be given the motor M of oil pumper 1, therefore, oil pumper quits work.
Single-chip microcomputer U 2The VCC port connect the 5V DC power supply, electrolytic capacitor E 10Capacitor C 3Strobe, GND port ground connection, all the other ports all need not.
Power unit is by transformer T 1The 380V alternating current is become low pressure 16V alternating current, again by rectifier diode D 1, D 2, D 3, D 4The bridge rectifier of forming becomes direct current.Electrolytic capacitor E 5, E 9, E 6Be provided with as level and smooth pulse direct current, by triode Q 1, resistor R 18Voltage stabilizing didoe DW 4, diode D 5Form the 12V direct current stabilizer.Diode D 1, D 2, D 3, D 4The direct voltage of the bridge rectifier output of forming is delivered to triode Q 1Collector electrode, and pass through resistor R 18To triode Q 1Base stage and voltage stabilizing didoe DW 4Provide electric current, because voltage stabilizing didoe DW 4Pressure stabilization function, make triode Q 1The emitter output dc voltage be stabilized in about 13V, again through diode D 5The 12V direct voltage is sent in unidirectional conducting.The 12V direct voltage is through resistance R 19Current limliting makes LED 1Luminous, LED 1It is in running order to be lighted the expression main control computer.Three terminal regulator U 3Be the 5V direct current stabilizer, its input Vin receives the 12V direct voltage, output end vo ut output 5V direct voltage, earth terminal GND ground connection, capacitor C 7, C 6, C 8, C 9Be High-frequency Interference and suppress electric capacity, the purpose that they are set is to prevent High-frequency Interference, electrolytic capacitor E 7Be the 5V electrolytic capacitor filter.
J 1, J 2, J 3For three-phase alternating current is introduced binding post.K is an air switch, each circuit connect and check errorless after, air switch K is closed a floodgate, whole oil pumping system (full-automatic electricity-saving controller of oil pumper and oil pumper) just can run well.

Claims (5)

1, the full-automatic electricity-saving controller of oil pumper, comprise the transformer (3), the A.C. contactor (4) that are connected with main control computer (1), circuit breaker (5) is connected with A.C. contactor (4) with transformer (3) is elementary, A.C. contactor (4) is connected with motor (6), (7) are connected with main control computer (1) to it is characterized in that transducer is arranged, transducer (7) places on the oil pipe, optical transmission circuit (8) and optical receiving circuit (9) are set respectively on relative two walls of its housing, the centre has crude oil oil feed passage (10) to communicate with oil pipe, and optical receiving circuit (9) output is connected with main control computer (1).
2, the full-automatic electricity-saving controller of oil pumper according to claim 1 is characterized in that optical transmission circuit (8) is by current-limiting resistor (R 16, R 17) and light-emitting diode (LED 3, LED 4) form, optical receiving circuit (9) is by current-limiting resistor (R24) and photo resistance (RX 1, RX 2) form photo resistance (RX 1, RX 2) output meet comparator (U 1) 2 pin, resistance (R 25, R 12) meet comparator (U 1) 3 pin, U 11 pin through diode (D 8) meet triode (Q 2) base stage, main control computer (1) is single-chip microcomputer (U 2), triode (Q 2) collector electrode meet (U 2) the P3.0 port.
3, the full-automatic electricity-saving controller of oil pumper according to claim 1 is characterized in that single-chip microcomputer (U 2) be that the 89C2051 single-chip microcomputer is connected with D.C mutual-inductor (2), current transformer (2) is three-phase alternating current instrument transformer (T 2, T 3, T 4), it is exported through three bridge rectifier (B 1, B 2, B 3) after three cover capacitance-resistance smoothing circuits meet single-chip microcomputer (U respectively 2) P3.2, P3.3, P3.4 port, capacitance-resistance smoothing circuit comprise pressure limiting diode (DW 1, DW 2, DW 3), disturb and suppress electric capacity (C 12, C 11, C 10) and pull-down load resistance (R 8, R 9, R 10).
4, the full-automatic electricity-saving controller of oil pumper according to claim 3 is characterized in that circuit breaker (5) is air switch (K) and transformer (T 1) elementaryly be connected single-chip microcomputer (U with A.C. contactor (TOUCH) 2) P3.5 port and triode (Q 3) base stage connect triode (Q 3) emitter and power drive pipe (Q 4) base stage connect power drive pipe (Q 4) collector electrode and auxiliary relay (REL 1) connect REL 1TOUCH is connected with A.C. contactor.
5, the full-automatic electricity-saving controller of oil pumper according to claim 1 is characterized in that single-chip microcomputer (U 2) reset terminal RST and electrochemical capacitor (E 4) and resistance (R 7) connect its oscillator port (XTAL 1, XTAL 2) and quartz crystal (X 1) and capacitor (C 1, C 2) oscillator formed connects.
CN 03233716 2003-03-27 2003-03-27 Fully automatic power saving controller for oil pump Expired - Fee Related CN2613928Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03233716 CN2613928Y (en) 2003-03-27 2003-03-27 Fully automatic power saving controller for oil pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03233716 CN2613928Y (en) 2003-03-27 2003-03-27 Fully automatic power saving controller for oil pump

Publications (1)

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CN2613928Y true CN2613928Y (en) 2004-04-28

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Application Number Title Priority Date Filing Date
CN 03233716 Expired - Fee Related CN2613928Y (en) 2003-03-27 2003-03-27 Fully automatic power saving controller for oil pump

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102842888A (en) * 2011-06-24 2012-12-26 深圳市万禧节能科技有限公司 Energy saving and load protecting device and method for alternating current contactor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102842888A (en) * 2011-06-24 2012-12-26 深圳市万禧节能科技有限公司 Energy saving and load protecting device and method for alternating current contactor

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