【摘要】 在实验的基础上对瓦斯爆炸传播过程中火焰温度和传播速度间的相互关系进行了研究,并分析了火焰温度诱导火焰加速的机理。研究结果表明:火焰温度和传播速度的变化趋势是一致的,但火焰温度对传播速度的影响较为明显,随着温度的升高,火焰传播速度不断增大。分析认为高温促进甲烷的分解产生更多的自由基,且自由基在高温条件下易于扩散,反应更为剧烈是火焰加速的诱因。更多还原

【Abstract】 The relationship between flame temperature and propagation velocity of gas explosion are studied on the basis of experiment and analyzed the flame temperature induce flame acceleration mechanism.The results show that: the flame temperature and propagation velocity has the same trend,but the flame temperature influence propagation velocity is more obvious,along with the temperature elevation,the flame propagation velocity increases unceasingly.Analysis that the cause of flame acceleration is that high temperature for the decomposition of methane to produce more free radicals and free radicals in high temperature easily spread,the reaction is more intense.更多还原