Automatic monitoring system for down-hole central pumping room drainage

Abstract

The invention relates to an underground central pump room draining automatic monitoring system, which comprises a PLC control cabinet, a remote expanding module, a site data bus, a contact screen, an analog quantity and switching value input module, various monitoring probes, a travel switch, a level instrument and an executable section. A monitoring net adopts a form of combining a PROFIBUS DP site data bus and an industrial ethernet. A monitoring method for the system comprises: (1) monitoring the absorbing well water level; (2) monitoring the state for starting a high pressure switching cabinet by a water pump; (3) judging the valve levels of a gate valve, a ball valve of a water jet pumping device and a water distribution gate; (4) judging the valve levels of a vacuum pump ball valve;(5) measuring each equipment temperature measuring point; (6) measuring signals of a pressure sensor and a negative pressure sensor; (7) judging system faults; (8) automatically controlling the start-stop and operation numbers of the water pumps according to the absorbing well water level conditions; and (9) setting power supply peak avoiding time periods, and automatically selecting starting time and numbers of a pump. The system improves the system working reliability, reduces the equipment fault rate, and adopts a three-stage monitoring structure for a draining system.

Description

technical field [0001] The invention relates to an automatic drainage monitoring system for an underground central pump room. Background technique [0002] The mine drainage system is responsible for draining the underground water to the ground, and the underground central pump room generally drains the gushing water to the ground; whether the drainage system of the underground central pump room can operate reliably and effectively will be related to the drainage safety of the entire mine and even the safety of the mine. The drainage system of the underground central pump room generally consists of a water pump and a motor, a water pump starting high-voltage switch cabinet, a water tank, a water suction well, a water pump vacuum device (vacuum pump or water jet vacuum device), three valves (gate valve, check valve, bottom valve; The gate valve and check valve are installed on the drainage pipeline, the bottom valve is installed at the end of the pump suction pipe), the water...

AI Technical Summary

Problems solved by technology

[0003]At present, the drainage system equipment in the central pump room of ordinary mines, its gate valves, water distribution gates, and water jet vacuuming devices are all manually operated without electric actuators; the water level of the suction well Operations such as observation, pump start and stop are manual

There are many problems that are not suitable for modern mine management, such as high labor intensity, complicated operation process, long start and stop time, and low efficiency.

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