摘要
基于某液化石油气(LPG)钢瓶爆炸事故,设置不同的剩余质量、泄漏高度、泄漏孔径,运用ALOHA软件对比分析瓶装LPG发生蒸气云爆炸(UVCE)、沸腾液体扩展为蒸气爆炸(BLEVE)的冲击波和热辐射影响范围及影响因素。模拟结果表明,两种爆炸产生的叠加影响与实际事故影响一致,同一条件下BLEVE比UVCE事故伤害范围大。BLEVE主要受液化石油气质量的影响,储存量越大,BLEVE伤害范围越大。UVCE受质量、泄漏孔高度、泄漏孔径等因素的影响,伤害范围随着储存量的增加而增大,随着泄漏孔高度的增加而减小,随泄漏孔径变大先增大后趋于稳定值。
Based on the explosion accident of a LPG cylinder,by setting different residual mass,leakage height and leakage aper-ture,and by using ALOHA software,the impact range and influ-encing factors from shock wave and heat radiation created by the bottled LPG's vapor cloud explosion(UVCE)and the boiling liq-uid's vapor explosion(BLEVE)were compared and analyzed.The simulation results showed that the superposition effect caused by the two explosions is consistent with the actual accident.Under the same conditions,BLEVE has a larger damage range than the UVCE accident.BLEVE is mainly affected by the quality of lique-fied petroleum gas,the more the storage,the greater the BLEVE injury range.UVCE is affected by factors such as mass,height of leakage hole and leakage aperture.The injury range increases with the increase of storage amount,decreases with the increase of leak-age hole height,and increases with the increase of leakage aperture at first and then tends to be stable value.
作者
张小良
宋慧娟
刘晓晨
刘婷婷
何锐
ZHANG Xiao-liang;SONG Hui-juan;LIU Xiao-chen;LIU Ting-ting;HE Rui(College of Urban Construction and Safety Engineering,Shanghai Institute of Technology,Shanghai 201418,China)
出处
《消防科学与技术》
CAS
北大核心
2018年第3期401-405,共5页
Fire Science and Technology
基金
国家自然科学基金青年科学基金项目(51304137)
