摘要
为了研究N_2-细水雾和CO_2-细水雾对瓦斯的抑爆效果,利用建立的管道长度为3 000mm,曲面半径为27 mm的瓦斯爆炸模型,对惰性气体-细水雾抑制管道内甲烷预混气体爆炸的过程进行了实验研究,考察了浓度为9.5%甲烷预混气体被点燃后,喷入后管道内的压力和温度的变化。结果表明:在同一条件下,N_2-细水雾与CO_2-细水雾均比细水雾的抑爆效果要好,且CO_2-细水雾的抑爆效果优于N_2-细水雾,当加大气体的压力,影响规律与影响效果将显著加大。
In order to study the suppression effect of N2-water mist and CO2-water mist on gas explosion, a gas explosion model with a pipe length of 3 000 mm and a curved radius of 27 mm was used to study the explosion process of methane premixed gas in a pipeline by using an inert gas water mist. The change of pressure and temperature in the pipe after injection of methane premixed gas was investigated when the concentration was 9.5%. The results show that： under the same conditions, the explosion suppression of N2-water mist and CO2-water mist were better than that of water mist, and the exploration suppression of CO2-water mist is better than that of N2-water mist; when the gas pressure is increased, influence and effect will increase significantly.
作者
郭成成
王飞
刘红威
刘全保
GUO Chengcheng;WANG Fei;LIU Hongwei;LIU Quanbao(School of Mining Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Center of Shanxi Mine Safety for Graduate Education Innovation,Taiyuan 030024,China)
出处
《煤矿安全》
CAS
北大核心
2018年第6期164-167,共4页
Safety in Coal Mines
关键词
惰性气体
细水雾
抑爆
瓦斯爆炸
抑制作用
inert gas
water mist
explosion suppression
gas explosion
suppression
