CN201203779Y

CN201203779Y - Apparatus for automatically actuating intermittent pumping motor

Info

Publication number: CN201203779Y
Application number: CNU2008200719931U
Authority: CN
Inventors: 张兆民; 李华芹
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-13
Filing date: 2008-06-13
Publication date: 2009-03-04
Anticipated expiration: 2018-06-13

Abstract

A bridge type manual automatic pumping unit motor starting device is provided. The A, B phase current of three-phase power supply to the relay D, E and the B phase current is output to the relay E by the relay D and the B phase current is output to a trumpet to alarm by the relay E, another circuit passes through a stop button to a starter G coil and the A phase to form loop and the transfer switch is connected with the starter G coil and the A phase to form loop by the start, stop button. The A, B, C phase currents are connected with the starter F, G with output terminals in parallel and the starter F, G output A phase current and are connected with the starter F coil and then a motor protector H and the B phase current output by the starter F form loop. The A, B phase currents output from the starter F, G are respectively connected with the motor by a magnetic loop 21, 20 and the C phase current output from the starter F, G is connected with the motor by the protector H. The bridge type manual automatic pumping unit motor starting device has features of: simple structure, convenient maintenance, high taking rate, protection of motor, saved labor and material resources, safety and reliable performance.

Description

The moving device of stop and start between the intermittent pumping motor is automatic

Technical field

The utility model relates to a kind of oil field motor starting device with oil pumper, especially relate to a kind of intermittent pumping motor automatically between the moving device of stop and start.

Background technology

At present, because the oil-field oil pumper operate as normal is by electric motor starting, major part is to manually boot, but because a lot of oil well permeability is bad, needs intermittent pumping, opens work a period of time, quits work a period of time again.And because the oil well gap ratio is bigger, and personnel are fewer, and environment is more abominable, opens and find time longly, therefore Electric Machine Control there is very big difficulty, bigger to the crude production influence.

The utility model content

Technical problem to be solved in the utility model provide a kind of intermittent pumping motor automatically between the moving device of stop and start; this apparatus structure is simple; safeguard easily; automatically there is fault can start manual work; report to the police earlier before starting; security performance is reliable, has circuit compensation and overcurrent open-phase protection function, goes for an any large, medium and small electric motor starting and a stoppage in transit commentaries on classics.

For solving the problems of the technologies described above; the utility model provide a kind of intermittent pumping motor automatically between the moving device of stop and start; comprise three-phase supply; isolating switch; start button; stop button; magnetic starter; loudspeaker; one is used for manually the toggle switch of conversion automatically; motor; it is characterized in that: also comprise 3 time relay D; E; F; an isolating switch of manually changing automatically; electric capacitor; comprehensive protector of motor; two reset button; the A of three-phase supply; B; the C magnetic starter that is electrically connected; magnetic starter connects comprehensive protector of motor; comprehensive protector of motor connects electric capacitor and motor; the B of three-phase supply; C electricity mutually is connected with comprehensive protector of motor; for comprehensive protector of motor provides working power; the C of three-phase supply electricity mutually gives time relay D by toggle switch; E; F provides working power; the A of three-phase supply; B mutually the electricity by isolating switch successively with time relay F; E connects; for time relay F provides A phase working power; and be output as time relay E by time relay F; D provides B phase working power; time relay F control time relay D and E, time relay E output A electricity mutually provides A phase working power for time relay D.

Good effect of the present utility model is: simple in structure, easy to maintenance, manually can use separately automatically; energy savings is avoided flogging a dead horse; electric motor starting is reported to the police and is avoided damaging to the workmen, and the overcurrent open-phase protection directly detects at the motor place, avoids the excessive motor that burns out of phase shortage electric current; any one can both detect mutually; electric capacitor improves the quality of power supply, reduces electric energy loss, can also improve the utilization factor of power-supply unit; save the man power and material, security performance is reliable.

Description of drawings:

Accompanying drawing is circuit theory diagrams of the present utility model.

Embodiment:

With reference to accompanying drawing, under auto state, breaker closing, toggle switch 23 is pushed 24 make it closed, after isolating switch K closure, three-phase electricity A, B, C receive the input end of magnetic starter, A mutually electricity be 19, No. 21 terminals power supplies of No. 7 terminals, the E of three time relay F by isolating switch 31, by No. 9 terminals power supplies that are D of 21, No. 20 terminals.B electricity mutually is No. 36 terminals power supply of comprehensive protector of motor G, and B electricity mutually receives No. 8 terminals of time relay F by isolating switch 31, again No. 16 terminals that are time relay E by No. 5 terminals, 12, No. 14 terminals power supplies of D.C electricity mutually to 10, No. 11 terminals of three time relay D, 17, No. 18 terminals of E, No. 2 terminals power supplies of F, makes time relay D, E, the F work of switching on by toggle switch control.After time relay D deferred action B mutually electricity power supply constitutes the loop with ground wire and makes it to start preceding warning to loudspeaker by 14, No. 15 terminals.After time relay E deferred action, 21,20 disconnect, and have cut off the power supply of No. 1 terminal of time relay D, and 14,15 disconnect warning stops.21,22 closures; A mutually electricity by 21,22 No. 41 terminals receiving comprehensive protector of motor; during comprehensive protector of motor G operate as normal; normally opened contact 41,40 adhesives, A mutually electricity by 41, No. 40 terminals be connected to magnetic starter coil L and B mutually electricity constitute the closed-loop path and make magnetic starter adhesive electric motor starting.When time relay F deferred action, 8,5 disconnect, and have cut off the working power of time relay D, E, have also cut off the working power of magnetic starter coil L, and magnetic starter discharges, and motor quits work.After 5,6 adhesives, stop pilot lamp and ground wire and constitute the loop, pilot lamp is lighted, and enters intermittently state.Because the magnetic starter adhesive is delivered to the terminal output of magnetic starter to three-phase electricity A, B, C, three-phase electricity A, B, C link to each other with motor with electric capacitor respectively by the magnetic test coil of comprehensive protector of motor.When motor protecter 35,36 has the power supply power supply; normally opened contact 40,41 closures; when

magnetic test coil

37,38,39 has electric current to flow through; the motor operate as normal; disconnecting the electric current that cuts off coil L if any a mutually uneven normally opened contact 40,41 discharges magnetic starter; motor quits work, and reaches the purpose of protection.No. 1 terminal of time relay F is a common port, there are two reset button to be connected on 3 and No. 4 terminals of time relay F respectively, when pressing reset button 29 1 and 4 short circuits, the time numeration suspends, unclamp reset button 29, the time continues, and presses reset button 30 1 and 3 short circuits, reset to initial position, the time zero clearing.

Under manual state: cut-off breaker 31; toggle switch 23 pushed on 25 the position and make it closed; press start button 26 by stop button 27 and comprehensive protector of motor normally opened contact 41,40 and magnetic starter coil L and B mutually electricity constitute the loop and make magnetic starter adhesive machine operation; magnetic starter normally opened contact 28 closures are unclamped start button 26 and are taken over job by 28.When needs stop to pump, press stop button 27, the power supply that has cut off magnetic starter coil L makes its release, and motor quits work.

Because oil-field oil pumper is to work in the open air, thus the intermittent pumping motor automatically between the moving device of stop and start must adapt to abominable physical environment, must have waterproof, anti-hail, windproof function.Each components and parts must be installed in the good iron case of water resistance.The inlet of power lead and motor line is opened the bottom at the iron case.Isolating switch is being controlled general supply.Under auto state, be closure state at ordinary times, when incoming call, start simultaneously for fear of all motors, cause bigger load to circuit, and adopt delayed startup.Delayed alarm before the electric motor starting, reporting to the police stops the rear motor startup.Between entering after 40 days, maximum delay stops state, maximum delay 40 days, the work that moves in circles.When the overcurrent and the phase shortage circuit that detect it; all be connected on the end of magnetic starter; if any one electric mutually or any phase current imbalance is arranged; the capital quits work comprehensive protector of motor, disconnects wire loop, reaches the purpose of protection; electric capacitor is received the inlet end of motor; improve the quality of power supply, reduce electric energy loss, improve the utilization factor of power-supply unit.If the time relay damages, can not carry out Automatic Cycle startup work, can push under the manual state and manually boot.

Claims

1; the moving device of stop and start between a kind of intermittent pumping motor is automatic; comprise three-phase supply; isolating switch; start button; stop button; magnetic starter; loudspeaker; one is used for manually the toggle switch of conversion automatically; motor; it is characterized in that: also comprise 3 time relay D; E; F; an isolating switch of manually changing automatically; electric capacitor; comprehensive protector of motor; two reset button; the A of three-phase supply; B; the C magnetic starter that is electrically connected; magnetic starter connects comprehensive protector of motor; comprehensive protector of motor connects electric capacitor and motor; the B of three-phase supply; C electricity mutually is connected with comprehensive protector of motor; for comprehensive protector of motor provides working power; the C of three-phase supply electricity mutually gives time relay D by toggle switch; E; F provides working power; the A of three-phase supply; B mutually the electricity by isolating switch successively with time relay F; E connects; for time relay F provides A phase working power; and be output as time relay E by time relay F; D provides B phase working power; time relay F control time relay D and E, time relay E output A electricity mutually provides A phase working power for time relay D.