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[1]徐景德,田思雨,刘振乾,等.甲烷爆炸传播过程膜状障碍物的激励效应研究[J].中国安全生产科学技术,2019,15(7):69-74.[doi:10.11731/j.issn.1673-193x.2019.07.011]
　XU Jingde,TIAN Siyu,LIU Zhenqian,et al.Research on excitation effect of membrane obstacle in propagation process of methane explosion[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2019,15(7):69-74.[doi:10.11731/j.issn.1673-193x.2019.07.011]
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甲烷爆炸传播过程膜状障碍物的激励效应研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
15
期数:
2019年7期
页码:
69-74
栏目:
职业安全卫生管理与技术
出版日期:
2019-07-31

文章信息/Info

Title:
Research on excitation effect of membrane obstacle in propagation process of methane explosion
文章编号:
1673-193X(2019)-07-0069-06
作者:
徐景德1; 田思雨1; 刘振乾2; 冯若尘1
（1.华北科技学院 安全工程学院，河北 燕郊 101601；
2.中国矿业大学（北京） 资源与安全工程学院，北京 100083）
Author(s):
XU Jingde1;  TIAN Siyu1;  LIU Zhenqian2;  FENG Ruochen1
(1.School of Safety Engineering, North China Institute of Science and Technology, Yanjiao Hebei 101601, China;
2.School of Resources and Safety Engineering, China University of Mining and Technology (Beijing), Beijing 100083, China)
关键词:
甲烷爆炸; 膜状障碍物; 激励效应; 数值模拟
Keywords:
methane explosion;  membrane obstacle;  excitation effect;  numerical simulation
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2019.07.011
文献标志码:
A
摘要:
针对管状空间内膜状障碍物对甲烷爆炸传播的激励效应现象，基于机理分析进行了数值模拟和实验研究，计算分析薄膜附近爆炸冲击波压力峰值大小与火焰速度变化，同时运用激波管道进行相同工况条件下的实验，并对两者结果对比分析，发现有无膜状障碍物的压力峰值相差6倍以上。研究表明，膜状障碍物的激励效应是破膜以后形成的带压燃烧，提高了燃烧速率，导致甲烷爆炸的火焰传播速度剧增。实验结果一定意义诠释了同样数量的甲烷气体爆炸在不同环境内后果上的巨大差异，研究结果对矿井瓦斯爆炸事故调查及防治具有指导意义。
Abstract:
Aiming at the phenomenon of excitation effect of membrane obstacle on the methane explosion propagation in the tube space, the numerical simulation and experimental study were carried out on the basis of mechanism analysis. The pressure peak value of explosion shock wave and flame velocity change near the membrane were calculated and analyzed, meanwhile, the shock wave tube was used to carry out the experiments with the same working conditions. The results were compared and analyzed, and it was found that the pressure peaks with and without the membrane obstacle reached more than 6 times. The results showed that the excitation effect of the membrane obstacle was the pressure combustion formed after the membrane was broken, which increased the combustion rate and caused the flame propagation speed of methane explosion to increase dramatically. The results of the experiments explained the wide difference of consequences by the explosion of methane with the same quantity in different environments. The results have the guiding significance to the investigation and prevention of mine gas explosion accidents.

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备注/Memo

备注/Memo:
收稿日期： 2019-04-29；数字出版日期： 2019-07-30
* 基金项目： 国家重点研发计划“十三五”科技部专项(2016YFC0801502)；国家自然科学基金项目（51874134，51374108)；华北科技学院中央高校基本科研业务费项目（3142018017，3142019032）
作者简介： 徐景德，博士，教授，主要研究方向为矿井瓦斯灾害防治、安全生产监管与应急救援。
通信作者： 田思雨，硕士研究生，主要研究方向为瓦斯灾害防治。
更新日期/Last Update: 2019-08-07