某大型电竞场馆排烟系统合理性分析

Rationality analysis of smoke exhaust systems in a large e-sports stadium

针对大型电竞场馆类新型建筑,本文采用消防安全工程方法对已有设计进行消防安全评估。以某大型电竞场馆为例,应用Pathfinder和Pyrosim分别进行疏散和火灾模拟,分析疏散过程中的拥堵问题并进行优化改进,对烟气层高度、温度、CO浓度、能见度进行分析,得到必需疏散时间和可用疏散时间,判断排烟系统合理性。结果表明:原有安全出口能避免大量人员伤亡,但不能保证所有人员的安全疏散;新增合适位置及数量的出口,可有效缓解拥堵出口的疏散压力,保证全部人员安全疏散;该大型电竞场馆排烟系统设置合理,排烟效果较好,可提供较为充分的逃生时间。

Aiming at the new building type of large e-sports stadium,this paper adopts the fire safety engineering method to evaluate the fire safety of the existing design.Taking a large e-sports stadium as an example,Pathfinder and Pyrosim are used to simulate evacuation and fire,respectively.The congestion problem in the evacuation process is analysed and optimized,and the height,temperature,CO concentration and visibility of the smoke layer are analysed.The required safe escape time and available safe escape time are obtained to judge the rationality of the smoke exhaust system.The results show that the original exit can avoid a large number of casualties,but can not guarantee the safe evacuation of all persons.New exits with appropriate locations and numbers can effectively relieve the evacuation pressure of the congested exit and ensure the safe evacuation of all personnel.The smoke exhaust system of the large e-sports stadium is set reasonably and has a good smoke exhaust effect,which can provide sufficient escape time.