高层建筑外墙增设雨淋系统防火设计

Fire protection design of deluge system installing on exterior walls of high-rise building

通过对建筑外墙保温材料的火灾危险、防火措施进行分析,提出在建筑外墙增设雨淋系统以达到灭火控火作用的建议。对雨淋管道的布置位置、系统设置形式、设计参数、控制方式进行探讨。以某33层办公楼为例介绍外墙保护雨淋系统。管道布置方式为与室内消火栓系统合用,不用增加消防水池容积。不建议与自动喷水灭火系统合用。外墙雨淋系统若自动控制未能及时动作应可手动启动。

The suggestion that install deluge system on exterior building walls in order to control or extinguish fire was put forward through analyzing fire hazard and fire prevention measures of exterior wall materials.The pipeline position,system settings form,design parameters and control modes of deluge system were discussed.Deluge system on exterior walls with an example of a 33 layer office building was introduced.Piping layout mode was suggested to be combined with the indoor hydrant system,not automatic sprinkler system,without increasing the fire water volume.Deluge system on exterior walls should be started manually if the automatic control action delays.