爆炸与冲击2025，Vol.45Issue(11)：42-59,18.DOI:10.11883/bzycj-2024-0493
可燃气体泄爆特性研究现状及发展趋势
Research status and development trend about combustible gas explosion venting
摘要
Abstract
In order to ensure the safe transportation and storage of highly flammable and combustible gases,it is essential to implement effective prevention and control measures.Explosion venting is an effective way to prevent and control its explosion hazards.In order to improve the efficiency and safety of explosion venting means and to promote the further study of secondary explosion in the external flow field of explosion venting,the research status of combustible gas explosion and explosion venting at home and abroad is analyzed,and meanwhile,the theory and achievements of combustible gas explosion venting in recent 20 years are summarized.Existing researches have shown that the explosion characteristics of combustible gases has been studied systematically,providing underpinning data for the study of combustible gas venting characteristics.A comprehensive examination of the explosion parameters and flame development alterations was performed in the internal and external flow fields resulting from deflagration.The hazard of deflagration was found to be exacerbated by the coupling between pressure waves and flame waves in the internal and external flow fields.The effectiveness of deflagration was evaluated based on the results of the study.It is difficult to define the initiation of the secondary explosion because the secondary explosion in the vent outflow field is limited by the poorly recognized evolutionary mechanism of blast-flame coupling.A preliminary study of the effect of the secondary explosion on the variation of the deflagration parameters has been carried out.In the explosion venting research,it is still necessary to narrow the span of influencing factors in the experimental aspect and improve the explosion venting equipment.In the numerical simulation research,it is necessary to carry out the study of complex models,the prediction of explosion venting hazards and the evaluation of the effect of explosion venting,which still need a lot of data and good models.Accordingly,the safe transportation and storage of flammable gases can be realized and the applications of flammable gases can be broadened.关键词
可燃气体/泄爆/爆炸机理/二次爆炸/外流场/压力波/火焰波Key words
combustible gas/explosion venting/explosion mechanism/secondary explosion/outflow field/pressure wave/flame wave分类
力学引用本文复制引用
李润之,刘明帅,黄子超,曹梦婷,陈旭,王笑..可燃气体泄爆特性研究现状及发展趋势[J].爆炸与冲击,2025,45(11):42-59,18.基金项目
国家自然科学基金(52474240) （52474240）
山东省自然科学基金(ZR2022ME085) （ZR2022ME085）
河南省瓦斯地质与瓦斯治理重点实验室—省部共建国家重点实验室培育基地开放基金(WS2022A02) （WS2022A02）
