| 基于不同直径的高压管道瓦斯泄放自燃实验研究 |
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| 引用本文： | 余明高,任鹏,游浩,赵万里.基于不同直径的高压管道瓦斯泄放自燃实验研究[J].中国矿业大学学报,2012(2):194-199. |
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| 作者姓名： | 余明高 任鹏 游浩 赵万里 |
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| 作者单位： | 河南理工大学安全科学与工程学院;山西焦煤集团有限责任公司 |
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| 基金项目： | 国家自然科学基金项目(50974055,50906023);河南省基础与前沿技术研究计划项目(082300463205) |
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| 摘 要： | 为了探讨高压瓦斯在泄露过程中的危险性,采用自行设计和搭建的高压瓦斯泄放自燃实验平台,研究了初始压力、下游释放管道直径对高压瓦斯泄漏到空气中时发生自燃的影响.实验观察到2种不同的结果,即成功自燃、未成功自燃.研究结果表明,自燃现象的发生受下游释放管道的直径、长度以及爆破片的破裂方式等方面的影响;在相同实验条件下,使用直径较小的管道要比使用直径较大的管道更容易发生自燃现象.通过降低瓦斯源的初始压力,以及选择合理的泄压方式可以降低高压瓦斯泄漏过程中发生自燃的可能性.
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| 关 键 词： | 高压瓦斯 自燃现象 直径 冲击波 |
Experimental study of the spontaneous ignition of pressurized gas released through different diameter pipelines |
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| YU Ming-gao,REN Peng,YOU Hao,ZHAO Wan-li.Experimental study of the spontaneous ignition of pressurized gas released through different diameter pipelines[J].Journal of China University of Mining & Technology,2012(2):194-199. |
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| Authors: | YU Ming-gao REN Peng YOU Hao ZHAO Wan-li |
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| Affiliation: | 1(1.School of Safety Science and Engineering,Henan Polytechnic University,Jiaozuo,Henan 454003,China; 2.Shanxi Coking Coal Group Co Ltd,Taiyuan,Shanxi 030002,China) |
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| Abstract: | The auto-ignition of gas released under high pressure was studied.The effect of upstream pipe length and diameter was examined.The results show that the diameter and length of the pipe releasing the gas is important.In addition the way the break occurs is important.For given conditions,the smaller diameter pipe is more likely to develop spontaneous ignition than the larger one.Reducing the gas pressure and using a more reasonable relief method will reduce the likelihood of spontaneous combustion during the leaking of high pressure gas.This study is relevant to hazards developed from high pressure gas leaks. |
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| Keywords: | high-pressure gas auto-ignition phenomenon diameter shock wave |
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