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基于瓦斯爆炸在瓦斯防治中的重要性,通过实验对狭长通道中瓦斯爆炸波的传播特征及规律进行了研究。研究表明,瓦斯爆炸传播过程中,通道内的一定强度的湍流流场对燃烧反应速度有抑制作用;湍流流场、压力波和火焰波之间的相互影响使爆炸过程分为3个阶段:缓慢燃烧段、湍流发展段和激化振荡段,其中,激化振荡段的高频高压振荡波带来的破坏是最大的。
Based on the importance of gas explosion in gas prevention and control, the propagation characteristics and regularity of gas explosion waves in long and narrow channels are studied through experiments. The results show that the turbulent flow field with certain intensity in the passage has an inhibitory effect on the combustion reaction rate during the gas explosion propagation. The interaction between the turbulent flow field, pressure wave and flame wave causes the explosion process to be divided into three stages: slow Combustion section, turbulent development section and intensified oscillation section, among which the damage caused by the high-frequency and high-pressure oscillation section of the intensified oscillation section is the largest.