CN202695990U

CN202695990U - Electricity-saving control cabinet for oil pumping unit

Info

Publication number: CN202695990U
Application number: CN 201220384408
Authority: CN
Inventors: 宋新振; 宋建恩
Original assignee: SHANDONG LIAOCHENG SANJIAN ENERGY-SAVING EQUIPMENT CO LTD
Current assignee: SHANDONG LIAOCHENG SANJIAN ENERGY-SAVING EQUIPMENT CO LTD
Priority date: 2012-08-06
Filing date: 2012-08-06
Publication date: 2013-01-23
Anticipated expiration: 2022-08-06

Abstract

An electricity-saving control cabinet for an oil pumping unit is provided. A controller (11) inside a cabinet body (2) is installed on an inner mounting plate (5). A motor protector (12) and an air breaker (16) are installed on a front mounting plate (15), and are connected to wiring terminals (14) through primary lines (L), and are connected to power supply input lines (R). A power transformer (17), silicon controlled rectifier modules (20), an inner wire connector (24), and a line bank (22) are installed on a rear mounting plate (18). The power transformer (17) is connected to the inner wire connector (24) through a power line (X). The silicon controlled rectifier modules (20) are connected to the inner wire connector (24) through trigger lines (F), and are connected downwards to the line bank (22) through copper bars (21). The controller (11) is provided with a microcomputer (26), a power supply loop (27), a protection loop (28), trigger loops (30) and a sampling loop (31). The electricity-saving control cabinet for the oil pumping unit is convenient to install, is safe to operate, can reduce the internal loss of a motor (29) under the condition of a small load, saves electric energy, improves the operation efficiency of the oil pumping unit, reduces the operation cost, and extends the service life.

Description

A kind of used for oil extractor electricity-saving control cabinet

Technical field

The utility model relates to the motor auxiliary facility, relates in particular to control device of electric motor.

Background technology

General cage type three-phase asynchronous motor, no matter load all moves under full voltage, during actual motion, motor is from zero load to fully loaded even overload, magnetic field is substantially constant, and the magnetizing current in the total current is approximate identical, drives the torque current of load then along with the proportional variation of load variations, therefore, the power factor of resultant current is low, and load is less, and power factor is lower.Along with the decline of motor load rate, motor rotor operating current fall is very little, and the internal loss of motor was still very large when this just caused low load, thereby makes the operational efficiency of motor and power factor descend and sharply descend with load factor.The oil-field oil pumper auxiliary motor that uses in the open air at present adopts general control device, is common electrical gas tank form, and stolen or destruction affects oil pumper and uses easily.

The utility model content

The purpose of this utility model just provides a kind of open-air oil pumping machine control cabinet that uses, safe antitheft of being suitable for, the internal loss of motor when reducing underloading, the overall operation efficiency of raising oil pumper, saves energy, increase the service life, guarantee the oil pumper normal operation, improve economic and social benefits.

Task of the present utility model is finished like this: design a kind of used for oil extractor electricity-saving control cabinet; installing controller in the cabinet; motor protecter; air circuit; power transformer; heating panel; silicon controlled module; controller is installed on the interior mounting panel; motor protecter and air circuit are installed on the front mounting plate; connect by primary line; and connection binding post; be connected with power supply by connecting power input line again; power transformer; heating panel; silicon controlled module; the internal wiring device; line bank is installed on the rear mounting panel; power transformer is communicated with the internal wiring device by power line; the controllable silicon trigger electrode of silicon controlled module connects the internal wiring device by triggering line; and connecting line bank downwards by copper bar, line bank is connected with the air circuit that front mounting plate is installed by intert primary line in the space, bottom.The housing front of controller is provided with shift knob, function is selected knob, starting speed knob, starting time-delay knob, manual automatic button.Motor protecter and air circuit are installed in the front mounting plate front side by side; air circuit is provided with operating switch; the end face of motor protecter is connected with air circuit by three primary lines; motor protecter underrun primary line connects binding post; binding post can be connected with power input line, and air circuit underrun primary line is connected with the line bank of rear mounting panel.The upper left-hand installing power transformer of rear mounting panel, the internal wiring device that connects the right side installing by power line, three groups of heating panels of rear mounting panel middle part installing, the fixing silicon controlled module of installing with the controllable silicon trigger electrode on every group of heating panel, the controllable silicon trigger electrode connects the internal wiring device by triggering line, silicon controlled module connects downward copper bar, and the copper bar lower end connects line bank, and line bank can be connected with external output line.Surface-mounted integrated circuit in the controller is provided with microprocessor, electric power loop, protection loop, triggers loop, sampling loop, connects by the circuit line, triggers the loop is connected silicon controlled module by the triggering line controllable silicon trigger electrode.Fixing interior mounting panel, front mounting plate, the rear mounting panel of installing in the cabinet, leave the heat radiation space between front mounting plate and the rear mounting panel, all offer through wires hole on the bottom plate in front of cabinet, install respectively power input line and external output line, the front and back of cabinet is provided with the cabinet door, with the cabinet lock, cabinet door lock on cabinet, is enclosed in electric component in the cabinet on the cabinet door.During installation cabinet is placed on the horizontal plane reliably, is serially connected between oil pumper and the power supply, power supply is connected by power input line with the utility model, and motor of oil extractor connects the utility model output by external output line.Behind the power connection, make first operation test, with the bulb of three wye connections, be connected on the output trial run, if three consistent nothings of bulb brightness are flashed, the equipment that proves is normal, connects motor, the operation of can starting shooting.During manual work, manual-automatic switch is placed " manually " position, functional select switch is placed " economize on electricity " position, the start button of Push switch button, start operation; The stop button of Push switch button, out of service.During automatic operation, manual-automatic switch is placed " automatically " position, close a main switch, power supply indicator is bright, functional select switch is placed " economize on electricity " or " total head " position, and the operation of can starting shooting places the position of " pass " to shut down again.The cabinet lock is pinned, and operating personnel can leave the scene.Because cabinet is heavier, and is connected with the external circuits line, can't move, cabinet door lock closes tightly, can't open, and has prevented from circuit in the cabinet and electric component are destroyed.

Manufacture experimently, test according to technique scheme, prove of the present utility model rational in infrastructurely, matching performance is good, install easy to connect, safety is used in operation, can effectively reduce the internal loss of motor in the little situation of load, improves the operational efficiency of oil pumper, the normal operation of assurance oil pumper, saves energy increases the service life, and reduces operating cost, economic and social benefits are good, reached preferably predetermined purpose.

Description of drawings

Fig. 1 is external structure schematic diagram of the present utility model;

Fig. 2 is that the positive Q of cabinet 2 among Fig. 1 is to inner structural representation;

Fig. 3 is that cabinet 2 back side H of Fig. 2 are to inner structural representation;

Fig. 4 is electrical principle schematic diagram of the present utility model.

Among the figure, 1-cabinet top, 2-cabinet, 3-cabinet door, 4-cabinet lock, 5-interior mounting panel, 6-shift knob, 7-function is selected knob, 8-starting speed knob, 9-starting time-delay knob, 10-manually, automatic button, 11-controller, 12-motor protecter, 13-electric current is adjusted knob, 14-binding post, 15-front mounting plate, 16-air circuit, 17-power transformer, 18-rear mounting panel, 19-heating panel, 20-silicon controlled module, 21-copper bar, 22-line bank, 23-controllable silicon trigger electrode, 24-internal wiring device, 25-surface-mounted integrated circuit, 26-microprocessor, 27-electric power loop, 28-protection loop, 29-motor, 30-triggering loop, 31-sampling loop; Q-line of vision symbol, H-line of vision symbol, L-primary line, K-through wires hole, M-bolt, N-operating switch, X-power line, F-triggering line, D-power supply, R-power input line, J-circuit line, Y-external output line.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is illustrated.

Consult Fig. 1, Fig. 2, the cabinet 2 among Fig. 1 is vertical cube body housing, and the top is rectangular cabinet top 1, and four angles, bottom are supported by the cabinet leg, and front and back are provided with cabinet door 3, lock 4 with cabinet on the cabinet door 3.Open the cabinet door 3 of front, cabinet 2 interior fronts arrange sees Fig. 2, installing controller 11 on the interior mounting panel 5 on top, and controller 11 housing front panels left side is provided with shift knob 6, middle horizontally-arranged function is selected knob 7, starting speed knob 8, starting time-delay knob 9, and the right side is provided with manual automatic button 10.Front mounting plate 15 left sides installing air circuit 16; right side installing motor protecter 12; install side by side three binding posts 14 below the motor protecter 12; connect primary line L with bolt M; primary line L upwards connects motor protecter 12, and motor protecter 12 end faces connect air circuit 16 by primary line L, and M fixes with bolt; air circuit 16 bottom surfaces connect the space that primary line L is passed down through front mounting plate 15 bottom surfaces, to rear mounting panel 18 extensions at the back side.Air circuit 16 is provided with operating switch N; The power input line R that binding post 14 connects is passed down through the through wires hole K on cabinet 2 base plates, extends to cabinet 2 outsides, and D is connected with power supply.

Consult Fig. 3, open cabinet 2 back side rear cabinet doors 3, rear mounting panel 18 upper left-hand installing power transformer 17, right side installing electric wire connecting junction 24, three groups of heating panels 19 are installed at the middle part, and fixing installing is with the silicon controlled module 20 of controllable silicon trigger electrode 23 in the middle of the heating panel 19.Power transformer 17 connects internal wiring device 24 by power line X, and connects motor protecter 12.Controllable silicon trigger electrode 23 connects internal wiring device 24 by triggering line F.Every group of silicon controlled module 20 usefulness bolt M are fixedly connected with two downward copper bars 21, and copper bar 21 bottoms are fixed on the line bank 22 with bolt M.Extend three primary line L that come on the front mounting plate 15 and be fixed on the line bank 22 with bolt M, with corresponding copper bar 21 connections.But the interval connects external output line Y on the line bank 22, is communicated with motor of oil extractor 29.

Consult Fig. 4; installing microprocessor 26, electric power loop 27, protection loop 28, triggering loop 30, sampling loop 31 on the controller 11 internal integrated circuit plates 25; electricity consumption route J is communicated with; three groups are triggered loop 30 and are communicated with separately with corresponding three silicon controlled modules 20 by triggering line F respectively; silicon controlled module 20 is communicated with power supply D by power input line R simultaneously, is communicated with motor of oil extractor 29 by external output line Y.Triggering line F is communicated with sampling loop 31, protection loop 28, electric power loop 27 by circuit.

Implement according to such scheme, the utility model and oil pumping unit matching are placed in the field produces scene.Behind the plugged D, select as required corresponding button, can manually control, also can automatically control.When motor 29 load factors of oil pumper reduced, the utility model was by circuit tracing, and control reduces the stator feeding voltage of motor 29, and then reduction rotor current, thereby the internal loss of motor 29 when having reduced underloading has improved the operational efficiency of oil pumper, realizes electricity-saving function.

The utlity model has integrated degree height, dependable performance, easy to operate; the characteristics that life-span is long; can save active power, reactive power; Auto Power On, timing start-stop are realized soft start, carry out integrated protection; barrier propterty is strong; applied widely, good in economic efficiency, be particularly suitable for and the supporting application of the oil-field oil pumper of field work.

Claims

1. used for oil extractor electricity-saving control cabinet; it is characterized in that installing controller (11) in the cabinet (2); motor protecter (12); air circuit (16); power transformer (17); heating panel (19); silicon controlled module (20); controller (11) is installed on the interior mounting panel (5); motor protecter (12) and air circuit (16) are installed on the front mounting plate (15); connect by primary line (L); and connection binding post (14); be connected with power supply (D) by connecting power input line (R) again; power transformer (17); heating panel (19); silicon controlled module (20); internal wiring device (24); line bank (22) is installed on the rear mounting panel (18); power transformer (17) is communicated with internal wiring device (24) by power line (X); the controllable silicon trigger electrode (23) of silicon controlled module (20) connects internal wiring device (24) by triggering line (F); and connecting line bank (22) downwards by copper bar (21), line bank (22) is connected by intert the air circuit (16) that primary line (L) and front mounting plate (15) install in the space, bottom.

2. according to used for oil extractor electricity-saving control cabinet claimed in claim 1, it is characterized in that the housing front of described controller (11) is provided with shift knob (6), function is selected knob (7), starting speed knob (8), starting time-delay knob (9), manual automatic button (10).

3. according to used for oil extractor electricity-saving control cabinet claimed in claim 1; it is characterized in that described motor protecter (12) and air circuit (16) are installed in front mounting plate (15) front side by side; air circuit (16) is provided with operating switch (N); the end face of motor protecter (12) is connected with air circuit (16) by three primary lines (L); motor protecter (12) underrun primary line (L) connects binding post (14); binding post (14) can be connected with power input line (R), and air circuit (16) underrun primary line (L) is connected with the line bank (22) of rear mounting panel (18).

4. according to used for oil extractor electricity-saving control cabinet claimed in claim 1, the upper left-hand installing power transformer (17) that it is characterized in that described rear mounting panel (18), the internal wiring device (24) that connects the right side installing by power line (X), rear mounting panel (18) middle part installing three groups of heating panels (19), the upper fixing installing of every group of heating panel (19) is with the silicon controlled module (20) of controllable silicon trigger electrode (23), controllable silicon trigger electrode (23) connects internal wiring device (24) by triggering line (F), silicon controlled module (20) connects downward copper bar (21), copper bar (21) lower end connects line bank (22), and line bank (22) can be connected with external output line (Y).

5. according to used for oil extractor electricity-saving control cabinet claimed in claim 1; it is characterized in that the surface-mounted integrated circuit (25) in the described controller (11) is provided with microprocessor (26), electric power loop (27), protection loop (28), triggers loop (30), sampling loop (31); connect by circuit line (J), trigger loop (30) by the controllable silicon trigger electrode (23) that triggers line (F) connection silicon controlled module (20).

6. according to used for oil extractor electricity-saving control cabinet claimed in claim 1, it is characterized in that the fixing interior mounting panel (5) of installing in the described cabinet (2), front mounting plate (15), rear mounting panel (18), leave the heat radiation space between front mounting plate (15) and the rear mounting panel (18), all offer through wires hole (K) on the bottom plate in front of cabinet (2), install respectively power input line (R) and external output line (Y), the front and back of cabinet (2) is provided with cabinet door (3), cabinet door (3) is upper with cabinet lock (4), cabinet door (3) is locked on the cabinet (2), electric component is enclosed in the cabinet (2).