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瓦斯爆炸冲击波在管道拐弯处传播规律的试验研究
发表时间：2009-06-30 浏览量：2334 下载量：791
| 全部作者： | 景国勋，史果，贾智伟 |
| 作者单位： | 河南理工大学安全科学与工程学院 |
| 摘 要： | 为研究瓦斯爆炸后空气冲击波在巷道拐弯处的传播规律，试验设计了30°，45°，60°和90° 4种管道拐弯角度，并利用改变参与反应的瓦斯充填量的长度改变冲击波的初始超压，通过试验和进一步的比较分析，得出了爆炸冲击波在不同巷道拐弯角度的超压变化曲线。研究结果表明：随着初始超压的增加，冲击波超压衰减系数逐渐增大；随着拐弯角度的增大，冲击波超压衰减系数也略有增加。试验结果丰富了瓦斯爆炸冲击波在复杂巷道中的传播规律，对预防和控制冲击波的破坏和伤害作用有积极的意义。 |
| 关 键 词： | 安全工程；瓦斯爆炸；冲击波；超压；传播规律 |
| Title： | Experimental study on shock wave transmission law of gas explosion at turning points of pipeline |
| Author： | JING Guoxun, SHI Guo, JIA Zhiwei |
| Organization： | School of Safety Science and Engineering, Henan Polytechnic University |
| Abstract： | In order to study the transmission law of the air shock wave at turning points of tunnel after the gas explosion, the paper processed the experiment at different turning points with turning angles of 30� 45� 60�and 90� The system changed the filling length of the gas taking part in the reaction to change the initial overpressure of the shock wave, and obtained the overpressure change curve of the explosion shock wave at the different tunnel turning point angles. The results show that, with the increase of the initial overpressure, the overpressure attenuation coefficient of the shock wave increases gradually; and with the aggrandizement of the turning point angle, the overpressure attenuation coefficient of the shock wave also slightly increases. The experimental results have enriched the transmission law of the gas explosion shock wave in complex tunnel, and have positive significance to prevent and control destruction and injury function of the shock wave. |
| Key words： | safety engineering; gas explosion; shock wave; overpressure; transmission law |
| 发表期数： | 2009年6月第12期 |
| 引用格式： | 景国勋，史果，贾智伟. 瓦斯爆炸冲击波在管道拐弯处传播规律的试验研究[J]. 中国科技论文在线精品论文，2009，2（12）：1270-1274. |
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