简论自动灭火技术在城市轨道交通中的应用

Brief Discussion on the Application of Automatic Fire Extinguishing Technology in Urban Rail Transit

城市轨道交通车站具有受限空间、客流量大、人员密集的特点。为预防火灾情况发生,确保人身和设备安全,各车站一般都设置自动灭火系统。目前采用的传统自动灭火技术包括七氟丙烷(FM200)和惰性气体(IG541)系统,已逐渐不能满足可靠、安全、经济的技术和功能需求。因此,有必要利用高压细水雾灭火系统的技术先进、经济、环保的优势,对自动灭火技术进行分析研究,通过比较,证明高压细水雾灭火系统有着良好的应用前景,符合将来自动灭火技术的发展方向。

Urban rail transit stations have the characteristics of limited space,large passenger flow,and dense personnel.In order to prevent the occurrence of fire and ensure the safety of personnel and equipment,automatic fire extinguishing systems are generally installed in each station.The traditional automatic fire extinguishing technologies currently used include heptafluoropropane(FM200)and inert gas(IG541)systems,which have gradually been unable to meet the technical and functional requirements of reliability,safety and economy.Therefore,it is necessary to take advantage of the advanced technology,economy and environmental protection of the high-pressure water mist fire extinguishing system to analyze and study the automatic fire extinguishing technology.Through comparison,it is proved that the high-pressure water mist fire extinguishing system has good application prospects and is in line with the future development direction of automatic fire extinguishing technology.