地铁工程地下车站自动气体灭火系统设计研究

Research on the Design of Automatic Gas Fire Extinguishing System for Underground Station of Metro Engineering

地铁工程地下车站设备区电气设施众多,一旦发生火灾,将严重影响车站运营,并造成重大经济损失,因此地下车站设备区的消防设计不容轻视。本文基于深圳地铁地下车站自动气体灭火系统的设计特点,针对不同设计阶段,对气体消防系统的选型、气体灭火介质的输送距离及管网计算、气瓶间布置、输送管道管材的选择及连接方式、与其他专业的接口、系统设计各阶段应注意事项等方面进行综合分析,总结经验教训,为后续地铁工程的自动气体灭火系统设计提供借鉴。

There are many electrical facilities in the equipment area of the underground station of subway engineering.Once there is a fire,it will seriously affect the operation of the station and cause significant economic losses.Therefore,the fire protection design of the equipment area of underground station can not be ignored.Based on the design characteristics of the automatic gas fire extinguishing system in the underground station of Shenzhen metro,this paper introduces the design method of the automatic gas fire extinguishing system in different design stages,including the selection of gas fire extinguishing system,the transmission distance of gas fire extinguishing medium and the calculation of pipe network,the arrangement of gas cylinders,the selection and connection mode of transmission pipeline materials,and the interface with other specialties.The matters needing to be noted in each stage of system design are comprehensively analyzed,and the experience and lessons are summarized,which provide a reference for the design of automatic gas fire fighting system in subsequent subway projects.