置障条件下甲烷爆炸压力测试研究  

Experimental Investigation on Methane Explosion Pressure under Obstacles

作　　者：谭迎新[1] 秦涧[1] 

机构地区：[1]中北大学化工与环境学院,山西太原030051

出　　处：《中北大学学报（自然科学版）》2013年第3期271-274,共4页Journal of North University of China(Natural Science Edition)

基　　金：山西省国际合作计划项目(2012081014)

摘　　要：煤矿巷道中障碍物随处可见,对瓦斯爆炸过程具有重要影响.为降低瓦斯爆炸造成的损害,利用甲烷-空气混合物,在自制的水平管道装置中,通过改变障碍物距点火源的位置、间距和数量,研究瓦斯爆炸压力的变化规律.结果表明:改变障碍物位置和间距,爆炸压力变化很小,说明障碍物的位置和间距对瓦斯爆炸压力无明显影响.随着障碍物数量的增加,爆炸压力也增大,当障碍物数量多于5片后,爆炸压力的变化较小,说明障碍物数量对瓦斯爆炸压力的影响明显,因此应尽量避免在巷道存放障碍物.There are many obstacles in mine roadway and obstacles nave slgnmcant eliect oi1 gaexplosion. The paper studied the variation of gas explosion pressure by changing obstacles setting position, distance and number in pipeline experimental device for the purpose of reducing hazard of gas explosion, using methane-air mixture. The results show that： when changing obstacles setting position and distance, explosion pressure has little change. So obstacles setting position and distance have little effect on gas explosion. Explosion pressure increases with the increasing of obstacles number; when obstacles number is more than 5, explosion pressure has little change. Obstacles number has significant effect on gas explosion, so obstacles should be avoided to set in mine roadway.

关 键 词：瓦斯爆炸 障碍物 爆炸压力 

分 类 号：X932[环境科学与工程—安全科学]