Online monitoring and fault-diagnosing device of main fan for mines

A fault diagnosis device and ventilator technology, applied in mining equipment, mine/tunnel ventilation, mining equipment, etc., can solve the problems of signal processing and control being easily interfered by the outside world, poor anti-interference ability and use stability, and increased costs , to achieve the effect of simple structure, improved comprehensive performance and convenient maintenance

Inactive Publication Date: 2010-04-28
PINGAN ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the control and processing of the main fan parameter data acquisition adopt self-made electronic component boards and single-chip microcomputer control. The signal processing and control are easily disturbed by the outside world, and the anti-interference ability and use stability are poo

Method used

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  • Online monitoring and fault-diagnosing device of main fan for mines
  • Online monitoring and fault-diagnosing device of main fan for mines
  • Online monitoring and fault-diagnosing device of main fan for mines

Examples

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Embodiment Construction

[0025] By the attached drawing figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 As shown, an on-line monitoring and fault diagnosis device for a mine-used main ventilator includes a wind pressure signal sensor 1 installed at the air outlet of the main ventilator, connected to the PLC12 via a differential pressure transmitter 2, and the wind pressure signal sensor 1 measures and collects the fan The pressure at rest and the air flow pressure when the fan is running are processed by the differential pressure transmitter 2 and converted into electrical signals, which are sent to the PLC12 for logic control. The PLC12 sends the processed signals to the interface of the display 14 through the switch 13. The air flow static pressure is set to 160-1280Pa, and the air flow total pressure is set to 360-1500Pa. When the air flow pressure is too high or too small, the upper and lower limit values ​​are automatically verified through online monitoring, and the table is automatically ...

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PUM

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Abstract

The invention discloses an online monitoring and fault-diagnosing device of a main fan for mines. An air pressure signal sensor is arranged at the air opening of the main fan and is connected with PLC through a differential pressure transmitter; an air flow temperature sensor is arranged at the air opening of the main fan and is connected with the PLC through a temperature and humidity transmitter; a motor vibration sensor is arranged on a motor of the main fan and is connected with the PLC through a vibration transmitter; a temperature sensor is arranged on a winding of a motor and is connected with the PLC; a temperature sensor is arranged in a bearing of the motor and is connected with the PLC; a signal sensor is arranged in an electrical cabinet and is connected with the PLC; a voltage and current sensor is arranged on the electrical cabinet and is connected with the PLC through an electricity quantity parameter analyzer; a valve signal sensor is arranged at a valve and is connected with the PLC; the PLC is connected with a switch; the switch is connected with a displayer and a mine safety monitoring center respectively. According to the technical scheme, the drawback that the main fan for mines in the prior art uses a singlechip for control and lacks fault diagnosis is overcome and the device is suitable to be used for monitoring various main fans in mines and giving automatic alarms in case of fault.

Description

Technical field [0001] The invention relates to an on-line monitoring and fault diagnosis device for a mine main fan. Background technique [0002] The main ventilator is the key equipment of coal mine production. The normal operation of the unit directly affects the safety production and economic benefits of the coal mine. In recent years, the main ventilator failure accidents of domestic coal mines have occurred from time to time, and some are even devastating. The establishment of a networked online monitoring and fault diagnosis system for the main ventilator that meets the needs of the coal mine is an important part of the realization of the safety of coal mine production and the stable and long-term operation of the equipment. It is also a requirement for the modern management of coal mine equipment. In the prior art, the control and processing of the main fan parameter data collection adopts self-made electronic component board and single-chip control. The signal processin...

Claims

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Application Information

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IPC IPC(8): E21F17/18E21F1/00
Inventor 陈重新肖务里伍玉剑李柳春
Owner PINGAN ELECTRICAL
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