H2/CO合成气的最小点火能研究

doi:10.16265/j.cnki.issn1003-3033.2021.04.012

中国安全科学学报 ›› 2021, Vol. 31 ›› Issue (4): 88-94.doi: 10.16265/j.cnki.issn1003-3033.2021.04.012

H₂/CO合成气的最小点火能研究

李畅¹ 副教授, 苑艺笑², 原琪^**2, 郝剑涛², 何蔚³, 苑春苗² 教授

1 沈阳建筑大学土木工程学院,辽宁沈阳110168;
2 东北大学资源与土木工程学院,辽宁沈阳 110819;
3 北京理工大学机电学院,北京 100081

收稿日期:2021-01-05 修回日期:2021-03-06 出版日期:2021-04-28 发布日期:2021-12-20
通讯作者: **原琪(1995—),女,山西太原人,博士研究生,主要研究方向为工业防火防爆。E-mail:solar9552@163.com。
作者简介:李畅 (1980—),女,辽宁开原人,博士,副教授,主要从事工业爆炸防护理论与技术等方面的研究。E-mail:lc666666@126.com。
基金资助:
国家自然科学基金资助(51974189);国家重点研发计划项目(2017YFC0804703);辽宁省自然科学基金资助(19-ZD-0668);辽宁省重点实验室科技计划项目(2019JH2/10300054)。

Study on minimum ignition energy of H₂/CO syngas

LI Chang¹, YUAN Yixiao², YUAN Qi², HAO Jiantao², HE Wei³, YUAN Chunmiao²

1 College of Civil Engineering, Shenyang Jianzhu University, Shenyang Liaoning 110168, China;
2 College of Resources and Civil Engineering, Northeastern University, Shenyang Liaoning 110819, China;
3 College of Mechanical and Electrical Engineering, Beijing Institute of Technology, Beijing 100081, China

Received:2021-01-05 Revised:2021-03-06 Online:2021-04-28 Published:2021-12-20

摘要/Abstract

摘要： 为探究工业合成气(主要成分为H₂和CO)的体积分数及惰化作用下,其最小点火能变化特征,首先,选取CH₄气体样品,利用最小点火能测试装置确定试验系统的敏感条件;然后,基于系统敏感条件,测定不含惰性气体N₂系统中添加不同比例的H₂与CO混合物的最小点火能;最后,测定N₂稀释作用下气体混合物的最小点火能。研究结果表明:不含惰性气体的H₂与CO合成气中,H₂体积分数低于25%时,其对合成气的敏感体积分数值影响较大;含惰性气体N₂的H₂与CO合成气中,燃料体积分数大于40%时,惰化作用效果显著;含惰性气体N₂气体的H₂与CO合成气中,燃料体积分数小于40%时,系统最小点火能值的贡献主要取决于H₂所占体积分数。

关键词: H₂/CO合成气, 最小点火能, 惰化作用, 敏感体积分数, 惰性气体

Abstract: In order to explore minimum ignition energy variation characteristics of industrial syngas (mainly composed of H₂ and CO) under action of volume fraction and inerting effect. Firstly, methane gas was used to determine sensitive conditions of experimental system of minimum ignition energy. Then, minimum ignition energy of H₂/CO syngas with different ratios, as well as N₂ dilution conditions was measured by using a calibrated experimental device under its sensitive conditions. Finally, minimum ignition energy of gas mixture under N₂ dilution was determined. The result shows that in H₂ and CO syngas without inert gas, when volume fraction of H₂ is lower than 25%, it has a great influence on sensitive volume fraction value of system syngas. In H₂ and CO syngas containing N₂, inerting effect is significant when fuel volume fraction is greater than 40%. When fuel volume fraction of H₂ and CO syngas containing inert gas N₂ is less than 40%, contribution of system's minimum ignition energy value mainly depends on volume fraction of H₂.

Key words: H₂/CO syngas, minimum ignition energy, inerting effect, sensitive volume fraction value, inert gas

中图分类号:

X932

李畅, 苑艺笑, 原琪, 郝剑涛, 何蔚, 苑春苗. H₂/CO合成气的最小点火能研究[J]. 中国安全科学学报, 2021, 31(4): 88-94.

LI Chang, YUAN Yixiao, YUAN Qi, HAO Jiantao, HE Wei, YUAN Chunmiao. Study on minimum ignition energy of H₂/CO syngas[J]. China Safety Science Journal, 2021, 31(4): 88-94.

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H₂/CO合成气的最小点火能研究

Study on minimum ignition energy of H₂/CO syngas

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