CN201747334U - Control device of electricity stealing-proof type oil extractor - Google Patents

Abstract

The utility model discloses a control device of an electricity stealing-proof type oil extractor. The control device is characterized by comprising a voltage transducer, a current transducer, an electricity stealing-proof type oil extractor controlling device and a three-phase solid relay, wherein a voltage detecting signal of the voltage transducer is inputted into a voltage signal input end of a CPU (central processing unit) signal processing chip through an interface; a current detecting signal of the current transducer is inputted into a current signal input end of the CPU signal processing chip by an interface; and an electricity stealing-proof type oil extractor controlling device control signal which is outputted by the CPU signal processing chip controls the electricity stealing-proof type oil extractor controlling device to be in the work status by means of intermittent power supply by the three-phase solid relay, i.e., a control signal output end of the CPU signal processing chip outputs the control signal to switch off the three-phase solid relay when the power of the oil extractor is set to be a minimum value and switch on the three-phase solid relay after the set time.

Description

Antitheft electric type oil pumper control device

Technical field

The utility model relate to be applied in the oil field, at the control device of pumping unit of well.

Background technology

Because China oil field for a long time, most work all are the management of power uses that relies on manual work, particularly oil pumper, fully by Artificial Control; Because oil well branch area is wide, be dispersed in the field simultaneously, electricity consumption is difficult to accurate management more; So stealing electrical phenomena happens occasionally.

The utility model content

The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of antitheft electric type oil pumper control device is provided, reaching the purpose of the on-the-spot antitheft electricity of field produces.

The utility model technical solution problem adopts following technical scheme:

The design feature of the antitheft electric type oil pumper control device of the utility model is made up of voltage sensor, current sensor, antitheft electric pumping unit controller and three-phase solid-state relay; The voltage detection signal of described voltage sensor is through the voltage signal input of interface input in the cpu signal process chip; The current detection signal of described current sensor is through the current signal input of interface input in the cpu signal process chip; By the antitheft electric pumping unit controller control signal of described cpu signal process chip output by the three-phase solid-state relay duty that to control described antitheft electric pumping unit controller be intermittent power supply; The duty of described intermittent power supply is: when being arranged on oil pumper power and being minimum value, the control signal output of cpu signal process chip output control signal disconnects the three-phase solid-state relay, and to recover the three-phase solid-state relay after the time of setting be on-state.

The design feature of the antitheft electric type oil pumper control device of the utility model also is:

Being set to of described voltage sensor: the power supply three-phase voltage inserts respectively at the AC of each voltage sensor VSM1, VSM2, VSM3 and holds 1 pin, 10 pin by interface JP1 input; The output signal of described voltage sensor VSM1 is in OUT end (5 pin) output, the 1 foot output of the current rectifying and wave filtering circuit access interface JP2 that constitutes via inductance L 1, diode D1, capacitor C 1, C7 and voltage-stabiliser tube D7; The output signal of described voltage sensor VSM2 is held 5 pin output at OUT, the 2 foots output of the current rectifying and wave filtering circuit access interface JP2 that constitutes via inductance L 2, diode D2, capacitor C 2, C8 and voltage-stabiliser tube D8; The output signal of described voltage sensor VSM3 is exported at the 5th pin, the 3 foots output of the current rectifying and wave filtering circuit access interface JP2 that constitutes through inductance L 3, diode D3, capacitor C 3, C9 and voltage-stabiliser tube D9;

Being set to of described current sensor: the output signal of current sensor ISM1 is exported through 4 foots of the current rectifying and wave filtering circuit access interface JP2 that inductance L 4, diode D4, capacitor C 4, C10 and diode D10 constitute; The 5 foots output of the output signal of described current sensor ISM2 access interface JP2 behind inductance L 5, diode D5, capacitor C 5, C11 and voltage-stabiliser tube D11 rectifying and wave-filtering; The 6 foots output of the output signal of described current sensor ISM3 access interface JP2 behind inductance L 6, diode D6, capacitor C 6, C12 and voltage-stabiliser tube D12 rectifying and wave-filtering is with the output signal access cpu signal process chip U3 of described interface JP2.

Compared with the prior art, the utility model beneficial effect is embodied in:

1, the utility model utilizes voltage sensor and current sensor to gather the voltage and current signal respectively, the parameters such as power that are used for the analysis-by-synthesis motor, do not influencing under the preceding topic of oil pumper operate as normal, control power supply state in good time, realize each work period gap power supply, reach the effect of antitheft electricity.

Oil pumper mainly is made up of balance weight iron, horse head and motor etc., and balance weight iron is 20 seconds left rotation and right rotation one-periods, and moves up and down with the rotation drive horse head of balance weight iron, and motor is used to provide power.When balance weight iron upwards turns round, not only to drive horse head, also to overcome the resistance that is brought because of the balance weight iron self gravitation, the power maximum of motor at this moment, electric current is also maximum; When the balance weight iron rotation arrived peak and begin to change down, the deadweight of balance weight iron transferred the power of horse head motion to, at this moment the power of motor minimum that needs; The utility model utilizes voltage sensor and current sensor to gather the voltage and current signal respectively, the parameters such as power that are used for the analysis-by-synthesis motor, indirectly judge on whether balance weight iron and forward the extreme higher position to, when on definite balance weight iron is, forwarding the extreme higher position to, give the power cut-off 1-2 second of motor by the three-phase solid-state relay, when motor just had been short of power, power supply is on again, had guaranteed the operate as normal of oil pumper fully; The utility model is installed in the power distribution room, power supply is provided for open-air oil pumper, stolen by the people when the power electricity on the oil pumper and to get home when middle, because power supply is to cut off the power supply about 2 seconds about 20 seconds, household electrical appliance just can't normally use, even electrical equipment damaged, thereby the power electricity of oil pumper will steal and useless, reach the effect of antitheft electricity.

2, the utility model utilizes the three-phase solid-state relay to realize power supply break-make, fast, the contactless electric arc of reaction speed, long service life.

Description of drawings

Fig. 1 forms block diagram for the utility model circuit.

Fig. 2 is voltage sensor and a current sensor circuit schematic diagram in the utility model.

Fig. 3 is antitheft electric pumping unit controller circuit theory diagrams in the utility model.

Below pass through the specific embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.

The specific embodiment

Referring to Fig. 1, present embodiment is made up of voltage sensor, current sensor, antitheft electric pumping unit controller and solid-state relay.

Referring to Fig. 2, being set to of the voltage sensor in the present embodiment: the power supply three-phase voltage is by interface JP1 input, the AC that inserts respectively at each voltage sensor VSM1, VSM2, VSM3 end (1 pin, 10 pin); The output signal of voltage sensor VSM1 is in OUT end (5 pin) output, the 1 foot output of the current rectifying and wave filtering circuit access interface JP2 that constitutes via inductance L 1, diode D1, capacitor C 1, C7 and voltage-stabiliser tube D7; The output signal of voltage sensor VSM2 is in OUT end (5 pin) output, the 2 foots output of the current rectifying and wave filtering circuit access interface JP2 that constitutes via inductance L 2, diode D2, capacitor C 2, C8 and voltage-stabiliser tube D8; The output signal of voltage sensor VSM3 is exported at the 5th pin, the 3 foots output of the current rectifying and wave filtering circuit access interface JP2 that constitutes through inductance L 3, diode D3, capacitor C 3, C9 and voltage-stabiliser tube D9.

Being set to of current sensor in the present embodiment: the output signal of current sensor ISM1 is exported through 4 foots of the current rectifying and wave filtering circuit access interface JP2 that inductance L 4, diode D4, capacitor C 4, C10 and diode D10 constitute; The 5 foots output of the output signal of current sensor ISM2 access interface JP2 behind inductance L 5, diode D5, capacitor C 5, C11 and voltage-stabiliser tube D11 rectifying and wave-filtering; The 6 foots output of the output signal of current sensor ISM3 access interface JP2 behind inductance L 6, diode D6, capacitor C 6, C12 and voltage-stabiliser tube D12 rectifying and wave-filtering is with the output signal access cpu signal process chip U3 of interface JP2.

Referring to Fig. 3, the voltage detection signal of voltage sensor is through voltage signal input 2 pin, 3 pin and 4 pin of interface JP2 input in the cpu signal process chip; The current detection signal of current sensor is through current signal input 5 pin, 6 pin and 7 pin of interface JP2 input in the cpu signal process chip; By the cpu signal process chip in the antitheft electric pumping unit controller control signal of 37 pin output by the three-phase solid-state relay duty that to control antitheft electric pumping unit controller be intermittent power supply; The duty of intermittent power supply is: when being arranged on oil pumper power and being minimum value, the control signal output of cpu signal process chip output control signal disconnects the three-phase solid-state relay, and to recover the three-phase solid-state relay after the time of setting be on-state.

The antitheft electric type oil pumper control device of the utility model is installed in the central control room, make antitheft electric type oil pumper control device offer the working power of oil pumper by setting for being interrupted power supply, this interruption power supply is to be off-position when the oil pumper balance weight iron is in the peak of turned position, and lasting off-position 1-2 reverts to "on" position after second; Being interrupted power supply is to utilize voltage sensor and current sensor to gather the voltage and current signal of oil pumper, handle by the signal of single-chip microcomputer, and be the break-make that controllable silicon is realized power supply with solid-state relay.

Claims (2)

1. antitheft electric type oil pumper control device is characterized in that being made up of voltage sensor, current sensor, antitheft electric pumping unit controller and three-phase solid-state relay; The voltage detection signal of described voltage sensor is through the voltage signal input of interface input in the cpu signal process chip; The current detection signal of described current sensor is through the current signal input of interface input in the cpu signal process chip; By the antitheft electric pumping unit controller control signal of described cpu signal process chip output by the three-phase solid-state relay duty that to control described antitheft electric pumping unit controller be intermittent power supply; The duty of described intermittent power supply is: when being arranged on oil pumper power and being minimum value, the control signal output of cpu signal process chip output control signal disconnects the three-phase solid-state relay, and to recover the three-phase solid-state relay after the time of setting be on-state.

2. antitheft electric type oil pumper control device according to claim 1 is characterized in that:

Being set to of described voltage sensor: the power supply three-phase voltage inserts respectively at the AC of each voltage sensor VSM1, VSM2, VSM3 and holds 1 pin, 10 pin by interface JP1 input; The output signal of described voltage sensor VSM1 is in OUT end (5 pin) output, the 1 foot output of the current rectifying and wave filtering circuit access interface JP2 that constitutes via inductance L 1, diode D1, capacitor C 1, C7 and voltage-stabiliser tube D7; The output signal of described voltage sensor VSM2 is held 5 pin output at OUT, the 2 foots output of the current rectifying and wave filtering circuit access interface JP2 that constitutes via inductance L 2, diode D2, capacitor C 2, C8 and voltage-stabiliser tube D8; The output signal of described voltage sensor VSM3 is exported at the 5th pin, the 3 foots output of the current rectifying and wave filtering circuit access interface JP2 that constitutes through inductance L 3, diode D3, capacitor C 3, C9 and voltage-stabiliser tube D9;

Being set to of described current sensor: the output signal of current sensor ISM1 is exported through 4 foots of the current rectifying and wave filtering circuit access interface JP2 that inductance L 4, diode D4, capacitor C 4, C10 and diode D10 constitute; The 5 foots output of the output signal of described current sensor ISM2 access interface JP2 behind inductance L 5, diode D5, capacitor C 5, C11 and voltage-stabiliser tube D11 rectifying and wave-filtering; The 6 foots output of the output signal of described current sensor ISM3 access interface JP2 behind inductance L 6, diode D6, capacitor C 6, C12 and voltage-stabiliser tube D12 rectifying and wave-filtering is with the output signal access cpu signal process chip U3 of described interface JP2.

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