某大型冷库消防安全评估

Study on fire hazard analysis in large cold storage

冷库建筑相对封闭,且建筑内部处于低温环境,具有特殊的火灾危险。针对某大型冷库存在防火分区面积过大等问题,对货架间的热辐射蔓延进行计算,并利用FDS对冷库火灾烟气流动和热辐射蔓延进行模拟分析。开展疏散实验,测得人员在黑暗中行走速度为0.66m/s,计算冷库中人员的疏散时间。根据火灾蔓延与人员疏散研究结果,论证了在先进的消防技术和有效的消防管理条件下,增大冷藏间占地面积和防火分区面积的可行性。提出了对于大型冷库的消防技术和管理方面的建议。

The cold storage is a kind of relatively closed building.And the temperature is lower than normal temperature.Thus,cold storage have more particular fire hazards than other building.In this paper,the particular fire hazards were concluded and analysed.The area of the whole cold storage and storage room is beyond the limit of nation standard.Thus,this problem was analysed and discussed.Heat radiation was calculated with formula,as well as software.The fire development process was simulated by FDS.On the other hand,the walking speed in dark was gotten by experiment.The speed is at 0.66 m / s.According to this data,the evacuation time in most unfavorable scenario was calculated.The feasibility of fire protection design and administration in large cold storage was proved scientific and useful.At last,the suggestions on fire protection in large cold storage were put forward.