消防水雾辅助构建建筑火灾逃生通道可行性研究

Buildings are important places where people live and gather, and the frequency of building fires and the severity of their consequences make the problem of escaping from building fires a concern for research in related fields.Based on the building fire protection design, this study assumes that the fire water mist system can isolate the fire smoke and thus actively form a safe escape path. Using the Bim modeling technology and Pyrosim software, the kindergarten building is taken as an example to reveal the fire water mist system\'s propagation law of the fire smoke in the building, and to demonstrate its feasibility for assisting in the construction of the escape path.The research results show that the fire water mist system can inhibit the spread of fire smoke, the smaller the water mist particle size, the better the cooling cooling effect; the larger the spray flow, the stronger the inhibition of smoke. The escape channel constructed by fine water mist prolongs the time for the temperature, CO concentration and visibility to reach the dangerous state during evacuation and escape, reduces the temperature, CO content and improves the visibility in the escape channel.It can be seen that the selective opening and closing of the water mist system can form an escape route, increasing the safety of the escape route and avoiding the chaotic and disorganized consequences of escape.