Novel automatic monitoring system of coal mine main ventilator

Abstract

The invention relates to a novel automatic monitoring system of a coal mine main ventilator, which mainly comprises an upper computer, an Ethernet exchange, a PLC (programmable logic controller), a display screen, a relay, a switching value signal, an analog value signal, a throttle control, a motor start-stop device, alarm information, a wind pressure sensor, a wind volume sensor, a temperature sensor, a vibrating sensor, a current transducer and a voltage transducer. The system employs a PLC control system in company with the sensors to achieve operation control and relevant parameter acquisition of the ventilator. The system has an independent network and powerful functions, is high in reliability and employs modular design.

Description

technical field [0001] The invention relates to a control system, in particular to a novel automatic monitoring system for a coal mine main ventilator. Background technique [0002] With the development of coal mine modernization, the roadway continues to extend and expand, and the radial clearance in the main fan is too large, resulting in an increase in the air volume from the high pressure side to the low pressure side, increasing the eddy current loss in the fan. The traditional detection system uses a single-chip microcomputer to detect the working condition of the mine's main ventilator. Due to the influence of the fan motor's magnetic field and vibration, it is very easy to cause the single-chip system to be unstable, data disorder, distortion, etc., and the signal transmission fluctuates greatly, and the pressure pipe Louis accumulates. Water affects data transmission, or causes data to fail to be transmitted. Traditional monitoring uses wind meter or electronic wind...

AI Technical Summary

Problems solved by technology

[0002] With the development of coal mine modernization, the roadway continues to extend and expand, and the radial clearance in the main fan is too large, resulting in an increase in the air volume from the high pressure side to the low pressure side, increasing the eddy current loss in the fan

The traditional detection system uses a single-chip microcomputer to detect the working condition of the mine's main ventilator. Due to the influence of the fan motor's magnetic field and vibration, it is very easy to cause the single-chip system to be unstable, data disorder, distortion, etc., and the signal transmission fluctuates greatly, and the pressure pipe Louis accumulates. Water affects data transmission, or causes data to fail to be transmitted. Traditional monitoring uses wind meter or electronic wind cup measurement method, which requires installation of test brackets and sensors, and requires a lot of preparation work. Due to the influence of mine air environment and high wind speed, online monitoring of air volume poor accuracy

Images