曹　振（应急管理部沈阳消防研究所，沈阳市 110034）

Brief Analysis on Application of Line ⁃ type Optical Fiber Heat Fire Detector of Utility Tunnel

CAO Zhen(Shenyang Fire Research Institute of MEM,Shenyang 110034，China)

Abstract：Analysis and research are made on applications of the optical fiber heat detection technology in the fire prevention field of utility tunnel.At first,fire occurrence features and protection requirements are analyzed for utility tunnels and advancement & high adaptability of optical fiber heat detection technology are set forth. Then,working principles and construction schemes of this technology are introduced,with technical details and precautions for actual construction specified. At last,from the perspective of multiple application cases of actual scenes and compared with other fire detection technologies,advantages of line ⁃ type optical fiber heat detection technology are set forth. As indicated by actual applications,the line ⁃ type optical fiber heat fire detector can efficiently guarantee the daily fire safety of urban underground utility tunnels.

Key words：utility tunnel;line ⁃ type optical fiber heat fire detector;fire fighting;fire risk level;reliable operation;real ⁃ time online monitoring;protection against lightning;cost performance

摘　要：对光纤感温探测技术在综合管廊火灾防护领域的应用进行分析和研究：首先，对综合管廊的火灾发生特性和火灾防护要求进行分析，阐述光纤感温探测技术的先进性和高适应性；接着，介绍此项技术的工作原理和施工方案，详细说明实际施工时的技术细节和注意事项;最后从多个实际现场应用案例出发，与其他火灾探测技术相对比，阐明线型光纤感温火灾探测技术的优势。实际应用表明，线型光纤感温火灾探测器可有效保障城市地下综合管廊的日常消防安全。

关键词：综合管廊；线型光纤感温火灾探测器；消防；火灾危险级别；可靠运行；实时在线监测；防雷；性价比

中图分类号：TU998.1　　　　文献标识码：A

doi：10.3969 / j. issn.1003－8493.2020.06.011