Study on Influence of Conduit Support on Gas Explosion Flame Propagation

摘要：

The influence of installing spiral ring (tunnel support) in conduit on fire transmission and explosion wave in gas explosion was investigated in the laboratory of the steel conduit with the physical dimension of 80×80mm, which using high-accuracy dynamic data collect system to measure the parameters of flame and explosion wave in the process of explosion. The experiment result shows that the flame propagation velocity is enhanced by installing spiral ring in conduit on gas explosion, and with the increase of relative height the effect of flame acceleration is obviously, spiral ring has significant influence on gas explosion in the range of relative pitch; the theoretic explanation could summed up that the spiral ring make the gas flow velocity boundary layer of conduit wall separated, the surface of which forming boundary layer, induce to generate rotational flow. The present research provides important information on how to prevent and control the gas explosion.

关键词： gas explosion flame spiral ring boundary layer

作者: LIN Baiquan JIAN Congguang ZHANG Hui

作者单位: College of Energy Resources and Safety Engineering, CUMT, Xuzhou, Jiangsu 221008, China College of Mechanical and Electrical Engineering, CUMT, Xuzhou, Jiangsu 221008, China;Pingdingshan C College of Mechanical and Electrical Engineering, CUMT, Xuzhou, Jiangsu 221008, China

会议类型: 国际会议

会议名称: The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)

会议地点: 河南焦作

会议语种:英文

页码: 1530-1535

在线出版日期: 2007-04-17（万方平台首次上网日期，不代表论文的发表时间）