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论述关于瓦斯抽放网路流动状况的连续监视的远距离监控装置。在管路任意位置按装的叫做“三用”的瓦斯检定器,可以测定矿井负压、瓦斯含量、纯瓦斯量等三个参数。使用小型热敏电阻做为瓦斯检测元件。瓦斯浓度是用焊接金属罩保护的置于大气中的热敏电阻进行测定的。负压是用装在纯空气喷气(嘴)中的第2个热敏电阻测定,空气是由内管的小孔放
Discusses the long-distance monitoring device for continuous monitoring of gas drainage network flow conditions. Any position in the pipeline installed by the called “three” gas detector, you can determine the mine negative pressure, gas content, the amount of pure gas and other three parameters. Use a small thermistor as a gas detection element. The gas concentration is measured using a thermistor placed in the atmosphere protected by a welded metal cover. Negative pressure is measured with a second thermistor fitted in a pure air jet (nozzle), and the air is bubbled through the inner tube