氢氩混合气(5%∶95%)在空气中可爆性实验研究  

Experimental study on explosibility of hydrogen-argon gas mixture (5% ∶ 95%) in air

作　　者：殷德山[1] 张英喆[1,2] 于成龙 赵军 郑瑞臣[1] YIN Deshan;ZHANG Yingzhe;YU Chenglong;ZHAO Jun;ZHENG Ruichen(China Academy of Safety Science and Technology,Beijing 100012,China;School of Civil and Resource Engineering,Beijing University of Science and Technology,Beijing 100083,China)

机构地区：[1]中国安全生产科学研究院,北京100012 [2]北京科技大学土木与资源工程学院,北京100083

出　　处：《中国安全生产科学技术》2023年第4期142-146,共5页Journal of Safety Science and Technology

摘　　要：为研究氢氩混合气(5%∶95%)在空气中爆炸时所对应氢、氧极限含量,按照爆炸性测试标准EN 1839—2017,测试氢氩混合气在与空气的总混合气体中不同占比时的可爆性。研究结果表明:氢氩混合气(5%∶95%)在总混合气体中体积分数为76.018%~86.029%时,总混和气体具有爆炸危险性,与之对应能够发生爆炸的最低氢气体积分数为3.8%,最低氧气体积分数为2.93%,不具有爆炸性的最高氧含量为2.72%,该值较ISO 10156—2017《气体和气体混合物-气瓶阀口选择用潜在燃烧性和氧化能力的测定》中规定的极限氧含量低,研究结果可为氢氩气与空气的混合气体爆炸事故预防提供新的参考。In order to find out the limiting hydrogen(oxygen)concentration corresponding to the explosion of hydrogen-argon gas mixture(5%∶95%)in air,according to the explosibility test standard EN 1839—2017,the explosibility of hydrogen-argon gas mixture within the different proportions was tested.The results showed that the hydrogen-argon gas mixture(5%∶95%)could form an explosive atmosphere when it accounted for 76.018%~86.029%in the mixture with air,corresponding to a minimum hydrogen percentage of 3.8%,a minimum oxygen percentage of 2.93%and the maximum oxygen content that is not explosive is 2.72%that could cause an explosion.The maximum oxygen content is lower than the limit oxygen content of 4.3%specified in existing relevant standards.The research results can provide a new reference for the prevention of hydrogen-argon-air gas mixture explosion accidents.

关 键 词：氢氩混合气体 氧极限含量 爆炸性测试与判定 

分 类 号：X932[环境科学与工程—安全科学]