煤矿巷道瓦斯爆轰理论分析和参数计算

应用Ｃ－Ｊ爆轰理论和质量、动量、能量守恒原理，针对煤矿巷道瓦斯变绝热指娄建立了雨贡纽方程和瑞利方程，在此基石上分析了煤矿巷道瓦斯爆炸的条件和可能过程，建立了煤矿巷道瓦斯Ｃ－Ｊ爆轰参数计算公式，提出了激波点燃瓦斯混合气的条件的最小理论马赫数Ｍｍｉｎ的表达式。计算了煤矿恭和种瓦斯浓度情况下爆压、爆温、煤速等爆轰参数玫相应的点燃瓦斯混合气的量小理论马赫九Ｍｍｉｎ。

Theoretical Analysis and Calculation of Methane Gas Explosion in Coal Gangway

Using C J explosion theory and conservation of mass, momentum, energy, the author introduced Hugoniot equation and Rayleigh equation of changeable adiabatic index to gas in coal gangway and analysed conditions and process of gas explosion in coal gangway. The calculating eqations of methane gas C J explosion paramentes were established. The conditions of air methane mixire combustion by shock wave and minimum theorytical Mach number of shock wave were put forward. Finally, some parameters of methane gas explosion pressure, temperature, speed and minimum theorytical Mach number of air methane mixire combustion by shock wave under different methane concentrations were calculated.