巷道拐弯对泡沫铁镍金属阻抑瓦斯爆炸火焰温度影响研究  

Study on influence of roadway turning on flame temperature of foam iron nickel metal to prevent gas explosion

作　　者：魏春荣[1] 赵鲁金 倪朝欢 孙建华[1] 张锦鹏[1] WEI Chunrong;ZHAO Lujin;NI Zhaohuan;SUN Jianhua;ZHANG Jinpeng(Heilongjiang University of Science and Technology,Harbin Heilongjiang 150020,China)

机构地区：[1]黑龙江科技大学,黑龙江哈尔滨150020

出　　处：《工业安全与环保》2025年第3期1-7,共7页Industrial Safety and Environmental Protection

基　　金：国家自然科学基金(51504086)。

摘　　要：为解决煤矿拐弯巷道多,瓦斯爆炸后破坏力强问题,探索拐弯巷道阻隔抑爆新方法,运用Fluent仿真软件,分别在巷道拐弯角度为45°、90°的情况下,对泡沫金属阻抑瓦斯爆炸过程进行数值模拟,探究巷道拐弯对泡沫金属阻抑瓦斯爆炸冲击波超压和火焰传播速度的影响规律。模拟结果表明:45°拐弯巷道情况下,泡沫金属对瓦斯爆炸冲击波超压衰减率为29.00%,对火焰传播速度衰减率为19.55%,二者乘积衰减率为56.70%;90°拐弯巷道情况下,泡沫金属对瓦斯爆炸冲击波超压衰减率为30.87%,对火焰传播速度衰减率为20.27%,二者乘积衰减率为62.57%。分析得到2种拐弯巷道放置泡沫金属后都对冲击波超压和火焰传播速度产生了明显的阻抑效果,且90°拐弯巷道衰减效果优于45°拐弯巷道。To address the issue of numerous curved tunnels in coal mines and the strong destructive force of gas ex-plosions,a new method for blocking and suppressing explosions in curved tunnels is explored.In this article,the Fluent software program is used to numerically simulate the foam metal explosion suppression process at two tunnel bending angles of 45°and 90°.The study investigates the impact of tunnel curvature on the overpressure of shock waves and flame propagation speed during a gas explosion,as suppressed by foam metal.The simulation results show that,in the case of a 45°curved tunnel,the foam metal reduces the overpressure of the shock wave by 29.00%and the flame propa-gation speed by 19.55%,with the product of the two decay rates being 56.70%.In the case of a 90°curved tunnel,the foam metal reduces the overpressure of the shock wave by 30.87%and the flame propagation speed by 20.27%,with the product of the two decay rates being 62.57%.The analysis reveals that in both tunnel curvature cases,the placement of foam metal significantly suppresses both shock wave overpressure and flame propagation speed.Additionally,the suppression effect in the 90°curved tunnel is superior to that in the 45°curved tunnel.

关 键 词：泡沫金属 数值模拟 瓦斯爆炸 冲击波超压 火焰传播速度 

分 类 号：TD712.7[矿业工程—矿井通风与安全]