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高校教研楼潜在火灾源与高密度人流共存,火灾逃生疏散是保障灾后人身安全的重要环节。为探索火灾逃生疏散最优逃生条件,应用流体动力学分析软件FLUENT,数值分析防火分隔导致多种通风方式的起火分区温度、烟气场分布规律,研究火场逃生疏散的最优通风方式。结果表明,火灾初期开启防火分隔设施更有利于人员逃生疏散;关闭防火分隔设施条件下,防排烟系统开启略优于关闭;研究背景条件下,开启防火分隔为逃生疏散最优方案;火灾后关闭防火分隔设施可以控制火灾蔓延,降低财产损失,但应在确保人员安全疏散后进行。
College teaching and research building potential fire source coexist with high density of people, evacuation of fire evacuation is to protect the personal safety of an important part of the disaster. In order to explore the optimal evacuation conditions for fire evacuation, FLUENT was used to analyze the distribution of fire district temperature and flue gas fields in a variety of ventilation ways through numerical analysis of fire separation. The optimal ventilation mode for fire evacuation evacuation was studied. The results show that it is more beneficial to evacuate people when the fire separation facilities are opened in the early stage of fire; when the fire separation facilities are closed, the smoke control system is opened slightly better than the closure; under the research background conditions, the fire prevention separation is the optimal solution for evacuation and evacuation; Closure of fire separation facilities can control the spread of fire and reduce property damage, but should be done after the evacuation of personnel has been ensured.