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隧道火灾自动探测报警系统是隧道监控系统的重要组成部分之一,是保证公路隧道安全运营,减少公路隧道发生火灾时人员伤亡与财产损失的重要手段。其作用是实时探测隧道环境温度并迅速、可靠地发现和通报火情。可靠性与误报率是火灾报警系统设备的两大基本要素。本文分析了国内现有的隧道火灾监控系统现状,介绍了光纤光栅传感技术的原理,阐述了这一新技术在工程应用中的优点,体现了和谐、环保、节约的设计理念,并提出了基于光纤光栅感温探测器的隧道火灾报警监测系统,并结合工程实例介绍了该系统在隧道火灾监控中的应用。
Tunnel fire automatic detection and alarm system is one of the important components of tunnel monitoring system. It is an important means to ensure the safe operation of highway tunnel and reduce the casualties and property losses of highway tunnel in case of fire. Its role is to detect the tunnel ambient temperature in real time and quickly and reliably detect and communicate the fire. Reliability and false alarm rate are two basic elements of fire alarm system equipment. This paper analyzes the current status of tunnel fire monitoring system in China, introduces the principle of FBG sensing technology, expounds the advantages of this new technology in engineering application, embodies the design concept of harmony, environmental protection and economy, and puts forward Based on fiber grating temperature detector tunnel fire alarm monitoring system, combined with engineering examples introduced the system in the tunnel fire monitoring application.