火灾探测器对城市隧道消防运维管理的影响

Right Fire Detectors for Urban Tunnel Fire Protecting System

为极大地降低或避免火灾给城市封闭隧道带来的财产损失和人员伤亡,同时方便进行火灾救援,需正确地设计和使用消防设施。以城市隧道为背景,以新版《火灾自动报警系统设计规范》为设计依据,模拟隧道内发生火灾时,火灾自动报警系统联动控制程序启动消防给水灭火系统后火灾现场的实际情况;分析新规范实施后,将现有光纤感温探测器的信号作为现场探测输入信号导致消防报警联动主机无法准确启动相应区域的喷水灭火系统的情况。从可行性的角度,提出对光纤感温火灾探测器进行升级的建议。

Simulation is conducted to investigate the operation of the urban tunnel fire fighting system connected with the fire alarm system designed according to the "Code for Design of Automatic Fire Alarm System", new edition. It is found that the alarm system detecting fire by means of current optical fiber temperature sensors fails to decide the proper extinguish water supply devices to be started for the fire area. The causes are analyzed and practical measures of upgrading the optical fiber temperature detecting devices are proposed.