矿井瓦斯爆炸感应期内光学特征实验研究

Experimental study on optical characteristic of gas explosion in induction periods

依据瓦斯爆炸理论和光学技术研究现状,论证了瓦斯爆炸感应期内光学特征研究的可行性,并设计了相应的瓦斯爆炸实验系统.通过实验,分析了瓦斯爆炸传播过程可见光特征和瓦斯爆炸可见光前沿传播规律.研究结果表明:在爆炸管道中瓦斯爆炸可见光前沿位移和传播速度变化过程随时间呈明显阶段性;瓦斯反应过程与时间呈非线性关系,先燃烧后爆炸,瓦斯爆炸在感应期内存在光学现象.

Based on the mechanism of gas explosion and the study actuality on optical technique, demonstrated the feasibility of study on optical characteristic of gas explosion in induction periods, the experimental system was designed, which fitted for this study. Based on the experiment, the optical characteristic in the spread of gas explosion and the law of the optical front propagation was analyzed. The results show that the change of the displacement and the rate of visible light sent by the gas explosion appears stage quality; and the change of the gas reaction with the time is nonlinear; and the combustion appears first and the explosion appears then; and there are optical phenomena in the induction periods of gas explosion.