摘要
概述了目前已有的探测不同火灾特征信号的各种火灾探测器,通过分析其特点总结出适用于隧道火灾探测的探测器类型,分类阐述常用的隧道火灾探测器原理,详细研究各种探测器在隧道这一特殊环境中的使用情况,归纳各种隧道火灾探测器使用的隧道,为隧道用火灾探测器的选型提供参考。对两种主流探测器(线型光纤火灾探测器和点型双波长火焰探测器)的性能进行了分析比较。在总结目前隧道用火灾探测器的发展趋势并综合各种探测器在隧道中使用时的优点与缺陷的基础上,提出了实现火灾早期预警方案的一种设想。
This paper summarizes different fire detectors which can sense different representative signals coming from fire. By analysis of their characteristics some of them were chosen for work in tunnel environment, The principles of various conventional tunnel fire detectors were introduced. The tunnels using typical tunnel fire detectors are listed and the effect of these detectors is analyzed. Then the capabilities of two mainstream tunnel fire detectors are compared linear fiber optic sensor and the dual wavelength IR flame detector. At the end of the paper, based on the development of tunnel fire detectors and the advantage and disadvantage of various detectors applied in tunnel, a new fire alarm system is designed which can detect fire and give alarm at the early stage of fire.
出处
《地下空间与工程学报》
CSCD
2006年第2期311-314,共4页
Chinese Journal of Underground Space and Engineering
基金
上海市重大科技攻关项目
