地铁站火源位置对吸气式报警系统的影响

摘要

In this paper, Fire Dynamics Simulator is adopted to analyse data. It summarizes the influences of fire location on response performance of Aspirating Smoke Detector Fire Alarm System by designing different fire source position, and provides theoretical basis for such simulation study and engineering acceptance test.%以某地铁站南侧站台层公共区为例,采用FDS模拟研究火源位置对吸气式烟雾探测火灾报警系统响应性能的影响.结果表明,顶棚处报警时间随着火源位置与探测主机的距离增大而变长；顶棚处报警时间随着火源位置与采样管网的距离变小而加快；由于烟气上升到顶棚后,在沉降的过程中扩散方向具有随机性,对格栅处探测系统影响较大.