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

Fire Science and Technology ›› 2020, Vol. 39 ›› Issue (1): 58-62.

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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

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