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Main Features and Uses
With the improvement of coal mine automation, manual valves are difficult to meet the needs of modern development. Electric valves are widely used in the reconstruction of newly designed mines or old mines. The mine valve electric device is specially developed to improve the coal mine valve automation system, and the KXBC valve electric device control box is a control product for mine valve electric device.
The control box of the explosion proof valve for KXBC mine has the function of interfacing with the DCS system, thus making the control box more widely and reliably used in the automation system. On this basis, the control box has functions such as short-circuit protection, overload protection, undervoltage protection, leakage protection, over-torque protection, break-phase protection, and automatic correction of phase identification, and has set up the switching functions of stroke control and distance/in-place control. Make its use function more perfect.
In addition to ensuring the isolation performance, KXBC mine electric valve electric device control design has the mechanical and electrical lock function to prevent accidental operation, so that the equipment is used safely and reliably. On this basis, to monitor the operation of the equipment, the product also set up a variety of operational monitoring instructions, such as power supply instructions, Valve opening instructions, Valve closing instructions, overtorque instructions, fault indications and valve opening display.
Model representation method
Working conditions and working environment
Design and manufacturing standards for an explosive proof valve electric device control box for KXBC mine
Control Box Technical Performance
1. Has a variety of protection functions such as short circuit, fault phase, overload, undervoltage, and leakage of electricity;
2. Two options are available for distance/location;
3. Signal level: DC5V \ DC24V
4. Output impedance 700;
5. Output ^ large signal current DC36mA;
6. After the motor rotation is determined, the phase sequence of the three-phase power supply can be automatically corrected, and users can freely access the three-phase power supply of the electric control box;
7. Can be reliably connected with a variety of automatic control systems;
8. The user provides dry contacts and uses the +24 VDC power supply on the module(see the electrical diagram for details);
9. The user provides +24 VDC power supply. At this time, the user's +24 VDC power negative pole is combined with the module power supply negative pole. The positive pole of the power supply is input to each functional end of the module to achieve various control functions;
10. Input/output signals are isolated by photoelectricity and have strong anti-interference capabilities;
11. Open valves, close valves, electronic interlocks and mechanical interlocks, and reliably ensure that open and off AC contactors can not be sucked at the same time;
12. The undervoltage protection value is negative 15 % of the limit voltage.
Control box shape structure and dimensions
Empty outside chart
Empty triple map
Electrical Diagram of the Control Box of the Detracted Electric Device for KXBC Mine
Main circuit
Control loop
Control box terminal diagram of blast proof valve electric device for KXBC mine
