Abstract:

In view of present situation that main drainage system of many coal mine still run by artificial control and by relying on the experience of miners to judge the fault status，a mine main drainage system based on LabVIEW which can conduct condition monitoring and fault diagnosis was designed. This system can realize the on-line monitoring of data of the mine drainage device’s running state such as the flow of drainage pipe，the water level of the sump，the vacuum degree of the pump，the pressure at the exit of the pump，the temperature of the motor，and vibration of motor，and can realize the on-line evaluation of the running state of the mine drainage device through programming signal processing and analysis，fault diagnosis program. Trial operation shows that this system can run stably，the real-time and accurate parameters can be collected and the system condition evaluating is reliable.

Key words: main drainage system, condition monitoring, fault diagnosis, LabVIEW