Double-pump automatic circular water charging system of coal mine hydrostatic tank

Abstract

The invention discloses a double-pump automatic circular water charging system of a coal mine hydrostatic tank. The system comprises an automatic hydrostatic tank water level monitoring relay and a double-pump automatic circular control circuit, wherein the automatic hydrostatic tank water level monitoring relay comprises a hydrostatic tank low water level probe, a hydrostatic tank high water level probe, a semiconductor turning circuit and a hydrostatic tank water level output relay; the semiconductor turning circuit consists of a transformer, a voltage stabilizing circuit, a triode, a diode and a resistor; the double-pump automatic circular control circuit comprises a first deep well pump motor contactor, a second deep well pump motor contactor and an automatic circular control relay logic control circuit; the automatic hydrostatic tank water level monitoring relay provides a low water level pump starting relay contact signal and a high water level pump stopping relay contact signal; and the double-pump automatic circular control circuit realizes an automatic circular control function of two deep well pumps according to the height of the water level of the hydrostatic tank. Through the system, automatic circular work of a water charging pump of a coal mine ground hydrostatic tank is realized to alternately and automatically charge water; and high water level automatic monitoring and low water level automatic monitoring of the coal mine hydrostatic tank are realized.

Description

technical field [0001] The invention belongs to the field of mine electrical technology, and relates to a coal mine in which the static pressure water pool of a coal mine realizes the functions of automatic water replenishment, automatic water level control, and water pump automatic rotation water replenishment during the process of supplying water to the underground, so as to ensure that the static pressure water pool on the ground of the coal mine maintains a certain water level. Static pool double water pump automatic rotation replenishment system. The invention can be applied not only to the automatic replenishment of static pressure water pools on the ground of coal mines, but also to civil, fire-fighting and other industrial constant pressure water supply systems. Background technique [0002] Underground coal mines need a large amount of water for dust prevention, cooling, and fire fighting. Usually, a reinforced concrete hydrostatic pool is constructed near the wellh...

AI Technical Summary

Problems solved by technology

This control method has great disadvantages: First, the static pressure pool relies on human factors to start the pump to replenish water, which often causes insufficient water level and water overflow, which affects the underground water supply of coal mines or causes waste of water resources

The second is that the manual operation of the pump is arbitrary. It not only requires a dedicated person to work full-time, but also causes a water pump to be turned on for a long time to supply water, resulting in inconsistent wear and tear of the equipment, and once the water pump that has not been used for a long time works in an emergency, it often causes failures.

Therefore, the current management method of static pressure pools on the ground of coal mines not only has high cost input, but also cannot meet the needs of safe and economical water supply in coal mines.

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