煤矿瓦斯爆炸预警装置研究

In this paper, a forewarning device of of gas explosion in coal mine is designed. By analyzing gas explosion and its condition, applying explosion delta theory of combustible mixed gas, the device was applied to detect the methane and oxygen. Each gas density could be calculated with CPU. In the coordinate axiswith oxygen and combustion gas density, the relative location to the mixed gas density could be found. Then in comparison with the explosion delta, any explosion danger could be determined or not. The device can be applied to mine safety monitoring and disaster relief.