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近年来煤矿瓦斯逐渐由检测方式向监测方式发展,在监测方式中最有效的是瓦斯报警断电仪。上海研究所研制的ABD-1B型瓦斯报警断电仪由指示仪、瓦斯传感器及声光信号器三部份组成。可用于有瓦斯爆炸危险的井下工作面、机电峒室等地区进行瓦斯连续测量,超限报警,并在危险情况下切断被控制地区或设备的供电电源达到预防瓦斯事故的目的。
In recent years, coal mine gas has been gradually developed from detection mode to monitoring mode. The most effective method in monitoring mode is the gas alarm power-off device. ABD-1B-type gas alarm power off apparatus developed by Shanghai Institute consists of indicator, gas sensor and sound and light annunciators. It can be used for continuous gas measurement and over-limit alarm in underground working face, electromechanical chamber and other areas with danger of gas explosion. In case of danger, the power supply of the controlled area or equipment can be cut off to achieve the purpose of preventing gas accidents.