弯管对瓦斯爆炸的影响研究  

Influencing Study of Curved Pipe on Gas Explosion

作　　者：张一博[1] 谭迎新[1] 秦涧[1] 许航[1] 

机构地区：[1]中北大学化工与环境学院,山西太原030051

出　　处：《煤矿安全》2013年第10期14-16,共3页Safety in Coal Mines

基　　金：山西省国际科技合作项目资助(2012081014)

摘　　要：为了预防和降低瓦斯爆炸事故造成的危害,利用自制的水平管道式可燃气体-粉尘爆炸装置模拟矿井巷道,通过改变弯管的角度及位置,研究瓦斯爆炸压力和火焰传播速度的变化规律。结果表明:弯管对瓦斯爆炸具有显著影响,使得最大爆炸压力增大,火焰传播速度加速。弯管角度对瓦斯爆炸影响不同,45°弯管影响最小,90°弯管影响最大。In order to prevent and reduce the serious damages caused by mine gas explosions, the homemade combustible gas - dust ex- plosion device of horizontal pipeline were used to simulate the mine tunnel. By changing the angle and location of curved pipe,the pa- per studied the variation law of the gas explosion pressure and flame spreading velocity. The results showed that curved pipe highly in- creased the gas flame transmission velocity, the max explosion pressure and had great influence on gas explosion. Curved pipes of dif- t;erent angle had different influence on gas explosion, among that curved pipe of 45 - degree angle had least influence and curved pipe of 90 -degree angle had maximum influence.

关 键 词：弯管角度 瓦斯爆炸 爆炸压力 火焰速度 

分 类 号：TD712.7[矿业工程—矿井通风与安全]