论文部分内容阅读
1概述交通隧道受制于环境的封闭性,火灾时排烟与散热条件差,温度高,会很快产生高浓度的有毒烟雾,致使人员疏散困难、救火难度大,损坏程度严重。灾后的修复加固、功能恢复耗资巨大。“高风速条件下隧道线型光纤感温技术”(以下简称技术成果)立足于解决广泛应用于隧道中的线型光纤感温火灾探测报警系统因受到纵向风影响而导致的火灾温升探测和定位难题,达到了在5 m/s风速条件下,报警响应时间不大于45 s,火点定位误差不大于5 m的技术性能(见图1)。
1 Overview Traffic tunnels are subject to the environment closed, the fire exhaust and cooling conditions are poor, the temperature is high, will soon produce high concentrations of toxic smoke, causing personnel evacuation difficulties, fire fighting is difficult, serious damage. After the disaster recovery and reinforcement, functional recovery costly. “High-speed tunnel under the conditions of fiber optic temperature sensing technology” (hereinafter referred to as the technical achievements) Based on the widely used in the tunnel of the linear optical fiber temperature detection alarm system due to longitudinal wind caused by the fire caused by the temperature rise Detection and positioning problems, the technical performance of the alarm response time of not more than 45 s and the fire point positioning error of not more than 5 m at 5 m / s wind speed has been achieved (see FIG. 1).