CN206497352U

CN206497352U - A kind of explosion-proof type combined high pressure soft starter

Info

Publication number: CN206497352U
Application number: CN201720197097.9U
Authority: CN
Inventors: 陆文涛; 赵建波; 刘强; 崔广涛
Original assignee: CITIC HIC Kaicheng Intelligence Equipment Co Ltd
Current assignee: CITIC HIC Kaicheng Intelligence Equipment Co Ltd
Priority date: 2017-03-02
Filing date: 2017-03-02
Publication date: 2017-09-15
Anticipated expiration: 2027-03-02

Abstract

The utility model discloses a kind of explosion-proof type combined high pressure soft starter, the explosion-proof type combined high pressure soft starter is made up of major loop and control loop；The time-sharing starting of 4 fire-proof motors can be completed, while control, the defencive function of operation; with easy to operate, intelligent, Highgrade integration, small volume; the application characteristics such as easy-to-connect; large high-voltage motor can be reduced to start to power network, the impact of plant equipment; reduce requirement of the equipment installation to chamber; power cable, control cable, the arrangement of communication cable between equipment are reduced, facilitates maintenance of equipment to safeguard.

Description

A kind of explosion-proof type combined high pressure soft starter

Technical field

The utility model belongs to electric and electronic technical field, specifically a kind of soft of coal mine underground explosion proof type combined high pressure Dynamic device.

Background technology

With the well yield of China's coal-mine mine and the increase of mining depth, underground coal mine large scale equipment, such as：Main draining Pump, main fortune belt feeder etc., motor power is stepped up, and more than 1000kW motor is widely used, most flood Pump motor reaches 2200kW.Large-size machine, which starts the impact to power network, mechanical system, turns into the bottleneck of restriction equipment application, explosion-proof High-voltage soft-start turns into the first choice of large-size machine starting equipment, can effectively reduce the starting current and redundant torque of motor, Reduce large-size machine to start to power network, the impact of mechanical system, achieve good application effect.

But, using explosion-proof high-pressure soft start relative to high voltage flameproof switch across-the-line starting there is also price of complete machine it is high, The shortcomings of volume is big, if constituting the explosion-proof high-pressure System for Soft-starting of 1 time-sharing starting, 4 water pumps, at least needs 1 explosion-proof height Press soft start with 1 explosion-proof high-pressure power distribution equipment, 8 explosion-proof high-pressure magnetic starters and 1 set of PLC control system with the use of The start request of relevant device can be completed, system equipment is numerous, control is complicated, it is necessary to power cable and control between many equipment The connection of cable, system occupies very big chamber area, and installation and debugging time length, input manpower and materials are big, integrated cost compared with Height, limits it and is widely popularized.

The content of the invention

In order to solve the above technical problems, the utility model discloses a kind of explosion-proof type combined high pressure soft starter.This is explosion-proof Type combined high pressure soft starter is made up of major loop and control loop.

Major loop includes：Primary cut-out QS, inlet wire contactor K, soft starting controller SMC, selection of Motor contactor K2, K4, K6, K8, motor operation contactor K1, K3, K5, K7, input wires terminal R, S, T and output wiring terminal U1, V1, W1, U2、V2、W2、U3、V3、W3、U4、V4、W4.Electric network source is entered by input wires terminal R, S, T through primary cut-out QS Contactor K, K1, K3, K5, K7 are suitable for reading；Power supply enters soft starting controller SMC through inlet wire contactor K, then by soft starting controller SMC is connected on motor M1, M2, M3, M4 after selection of Motor contactor K2, K4, K6, K8 constitutes soft loop respectively；Power supply It is directly connected to constitute on motor M1, M2, M3, M4 through motor operation contactor K1, K3, K5, K7 and directly plays loop, its connected mode Connected for busbar, primary cut-out QS, motor operation contactor K1, K3, K5, K7, selection of Motor contactor K2, K4, K6, K8 are equal It is installed on dolly, using Integration Design, can be easily extracted out during maintenance, can quickly overhaul, safeguard.

Control loop includes：PLC system, color LCD screen P, inlet wire comprehensive protection device ZB, branch road comprehensive protection device ZB1, ZB2、ZB3、ZB4.Its function mainly by PLC system by control cable controlled motor select contactor K2, K4, K6, K8 and Motor operation contactor K1, K3, K5, K7 and soft starting controller SMC splitting or integrating lock and state acquisition, is communicated by RS485 Interface connects inlet wire comprehensive protection device ZB and branch road comprehensive protection device ZB1, ZB2, ZB3, ZB4, gathers each high tension loop operation number According to and fault-signal.Various signals are sent to color LCD screen P by PLC system through RS232 communication interfaces, while color LCD screen P can also be by the operation of touch manner control PLC system.

The beneficial effects of the utility model are：The explosion-proof type combined high pressure soft starter by inlet wire primary cut-out, soft Loop, directly play loop, control loop and be fully integrated into 1 anti-explosion box body, solve that system footprint area is big, between system equipment Cable is complicated, equipment is numerous, control is complicated, installation and debugging time length, put into the shortcomings of manpower and materials are big, equipment cost is high, sharp With 1 soft starter with regard to the requirement that can be met 4 startup of high-voltage motor, run, High Voltage Soft Starter can be effectively played Advantage, reduces impact of the motor starting currents with redundant torque, reduction large-size machine starting to power network and mechanical system.

Brief description of the drawings

Fig. 1 is explosion-proof type combined high pressure soft starter major loop schematic diagram.

Fig. 2 is explosion-proof type combined high pressure soft-starter control loop composition frame chart.

Embodiment

Below in conjunction with the accompanying drawings, further the utility model is described in detail.

As shown in Figure 1 and Figure 2, explosion-proof type combined high pressure soft starter is made up of major loop and control loop.

Major loop includes：Primary cut-out QS, inlet wire contactor K, soft starting controller SMC, selection of Motor contactor K2, K4, K6, K8, motor operation contactor K1, K3, K5, K7, input wires terminal R, S, T and output wiring terminal U1, V1, W1, U2、V2、W2、U3、V3、W3、U4、V4、W4.Electric network source is entered by input wires terminal R, S, T through primary cut-out QS Inlet wire contactor K and motor operation contactor K1, K3, K5, K7's is suitable for reading；Meanwhile, power supply enters soft start through inlet wire contactor K Controller SMC, then by soft starting controller SMC be connected to respectively after selection of Motor contactor K2, K4, K6, K8 motor M1, Soft loop is constituted on M2, M3, M4；Power supply through motor operation contactor K1, K3, K5, K7 be directly connected to motor M1, M2, M3, Constituted on M4 and directly play loop, its connected mode connects for high-tension cable.

The operation principle of the utility model explosion-proof type combined high pressure soft starter is：By taking motor M1 startings as an example：Power network electricity Source by input wires terminal R, S, T through primary cut-out QS be connected to inlet wire contactor K and motor operation contactor K1, K3, K5, K7 is suitable for reading, after PLC system receives motor M1 enabled instructions, PLC system control inlet wire contactor K and selection of Motor contactor K1 closes a floodgate, if two contactors close a floodgate and feed back to PLC system signal normally, PLC system control soft starting controller SMC works Make, motor starts to start by soft starting controller SMC setting curves, when motor M1 reaches rated speed, PLC system control electricity Machine operation contactor K2 closes a floodgate, if motor operation contactor K2 closes a floodgate and feeds back to PLC system signal normally, PLC system control Inlet wire contactor K and selection of Motor contactor K1 separating brakes, motor M1 are dragged by operation contactor K2 and run, at this point it is possible to carry out The starting control of next motor.After PLC system receives motor M1 halt instructions, PLC system control operation contactor K2 Separating brake, motor M1 shuts down.This explosion-proof type combined high pressure soft starter is full closed loop control in whole starting, running, Any element breaks down in the course of the work all can be by feedback signal transmission into PLC system, while color LCD screen P energy Intuitively operation, malfunction are shown.

High Voltage Soft Starter and its supporting high-tension apparatus are passed through automated system by this explosion-proof type combined high pressure soft starter Perfectly combine in anti-explosion box body, the function and efficiency of soft start are given full play on the premise of investment reduction cost, concentrate, Intuitively man-machine interface and with motor status are monitored and protected with various protection devices, is a kind of new, practical anti- Quick-fried type high-pressure motive equipment.

Claims

1. a kind of explosion-proof type combined high pressure soft starter, it is characterized in that：The explosion-proof type combined high pressure soft starter by major loop and Control loop is constituted；Major loop includes：Primary cut-out（QS）, inlet wire contactor（K）, soft starting controller（SMC）, selection connect Tentaculum contactor（K2、K4、K6、K8）, motor operation contactor（K1、K3、K5、K7）, input wires terminal（R、S、T）And output Binding post（U1、V1、W1、U2、V2、W2、U3、V3、W3、U4、V4、W4）；Control loop includes：PLC system, color LCD screen （P）, inlet wire comprehensive protection device（ZB）, branch road comprehensive protection device（ZB1、ZB2、ZB3、ZB4）；Electric network source passes through input terminal Son（R、S、T）Through primary cut-out（QS）Enter inlet wire contactor（K）With motor operation contactor（K1、K3、K5、K7）On Mouthful；Meanwhile, power supply is through contactor（K）Into soft starting controller（SMC）, then by soft starting controller（SMC）Respectively through motor Select contactor（K2、K4、K6、K8）After be connected to motor（M1、M2、M3、M4）Soft loop of upper composition；Power supply is through motor operation Contactor（K1、K3、K5、K7）It is directly connected to motor（M1、M2、M3、M4）Upper composition directly plays loop, and its connected mode is in equipment Inside is connected using busbar connection, device external using high-tension cable.

2. a kind of explosion-proof type combined high pressure soft starter according to claim 1, it is characterized in that：In the control loop PLC system is by controlling cable controlled motor to select contactor（K2、K4、K6、K8）With motor operation contactor（K1、K3、K5、 K7）And soft starting controller（SMC）Splitting or integrating lock and state acquisition, pass through RS485 communication interfaces connect inlet wire integrated protection Device（ZB）With branch road comprehensive protection device（ZB1、ZB2、ZB3、ZB4）, gather each high tension loop service data and fault-signal, PLC Various signals are sent to color LCD screen by system through RS232 communication interfaces（P）, while color LCD screen（P）It can also pass through The operation of touch manner control PLC system.

3. a kind of explosion-proof type combined high pressure soft starter according to claim 1, it is characterized in that：Primary cut-out（QS）、 Motor operation contactor（K1、K3、K5、K7）, selection of Motor contactor（K2、K4、K6、K8）It is mounted on dolly, using collection Into design is changed, it can easily be extracted out during maintenance, can quickly overhaul, safeguard.