主管:中华人民共和国应急管理部
主办:应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU

消防科学与技术 ›› 2020, Vol. 39 ›› Issue (1): 58-62.

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半敞开式白酒库泄漏事故火灾风险分析

翟东,章光,何明礼   

  1. 武汉理工大学安全科学与应急管理学院,湖北武汉43007
  • 收稿日期:2019-08-27 出版日期:2020-01-15 发布日期:2020-01-15
  • 作者简介:翟东(1996-),男,河南驻马店人,武汉理工大学安全科学与应急管理学院硕士研究生,主要从事建筑火灾模拟研究,湖北省武汉市洪山区珞狮路122 号,430070。

Fire risk analysis of leakage accident in semi-open liquor depot

ZHAI Dong, ZHANG Guang, HE Ming-li   

  1. School of Safety Science and Emergency Management, Wuhan University of Technology, Hubei Wuhan 430070, China
  • Received:2019-08-27 Online:2020-01-15 Published:2020-01-15

摘要: 运用PyroSim 软件建立某大型半敞开式白酒库的单个防火分区的1∶1 模型,考虑风速的影响,计算火灾发生后的温度场和热辐射场分布,并分析温度和热辐射对罐体及构筑物的影响。结果表明:无风条件下,泄漏点附近和顶棚均处于严重热暴露环境,罐体和顶棚可能发生结构破坏。有风条件下,火焰烟气会得到一定冷却并能较快排放,事故储罐和顶棚的温度均有下降,但气流导致火源燃烧核心发生转移,泄漏点周边储罐遭受的火灾影响增大。热辐射场影响分析显示,现行标准中储罐间最小防火间距略显不足,建议在实际设计中将此距离增加到0.6D 以上。

关键词: 半敞开式白酒库, 火灾, 防火间距, 数值模拟

Abstract: The 1∶1 model of a single fire zone of semi- open liquor depot was established using PyroSim software. The temperature field and thermal radiation field distribution after fire occurred were calculated considering the influence of wind speed. The effects of temperature and heat radiation on the tank and structure were analyzed. The results showed that under the condition of no
wind, the vicinity of the leakage point and the ceiling are in a severe heat exposure environment, and structural damage may occur in the tank body and the ceiling. Under windy conditions, the flame smoke will be cooled and discharged quickly, and the temperature of the accident storage tank and the ceiling will decrease, but the airflow will cause the ignition core of the fire source to shift, and the influence of tanks around the leakage point by the fire will increase. The analysis of the influence of the thermal radiation field showed that the minimum fire separation distance between the tanks in the current standard is slightly insufficient. It is recommended to increase the distance to 0.6D or more in the actual design.

Key words: semi- open liquor depot, fire, fire separation distance;numerical simulation