摘要
利用自建的模拟煤矿巷道的水平管道式气体爆炸实验系统,在置障条件下对瓦斯爆炸特性进行实验研究,改变内置障碍物的间距,研究其对瓦斯爆炸压力及火焰传播速度的影响规律.结果表明:瓦斯爆炸压力随着障碍物间距的增加呈现缓慢递增的变化规律;而火焰传播速度也随着障碍物间距的增加而递增.总体来说,障碍物间距的改变对爆炸压力的影响程度比其对火焰传播速度的影响要小一些.
Horizontal pipeline gas burst experimental system was used for research on the blast charac-ters of methane with obstacles.The influence rule of blast pressure and flame propagation velocity was studied under obstacles with different spacing.The results indicate that blast pressure of methane in-creases slowly with the increasing of spacing between obstacles.And the flame propagation velocity rises too.In a word,the influence level caused by variation of obstacle spacing on blast pressure is lesser than on flame propagation velocity.
出处
《中北大学学报（自然科学版）》
CAS
北大核心
2015年第2期188-190,196,共4页
Journal of North University of China(Natural Science Edition)
关键词
瓦斯
爆炸压力
火焰传播速度
障碍物
methane
blast pressure
flame propagation velocity
obstacle
