摘要
为了能够有效提升综合管廊内火灾自动报警系统的准确性和可靠性,本文采用火灾实体试验的方法,通过对各类型火灾自动报警探测器响应时间的情况进行分析和比较,研究综合管廊电力舱内常用探测器的性能。研究结果表明:接触式缆式线型感温火灾探测器可以较早的探测到电缆温度异常变化的现象,可用于早期预警。点型感烟探测器对烟粒子浓度较为敏感,可用于综合管廊电力舱室的空间探测。分布式光纤型感温火灾探测器对明火温度的变化较为敏感,作为空间型的火灾探测器比较可靠。
The performance of commonly used fire alarm detector in power compartment of utility tunnel was studied,through the response time by various types of automatic fire alarm detectors at full-scale fire test.The result demonstrated that the abnormal temperature rises on cable can be early detected by cable line-type heat detector.The concentration of smoke particles was more sensitive by point-type smoke detector,it can be applied for space detection in power compartment of utility tunnel.In addition,optical fiber distributed temperature detector possessed more reliability when as a space-type fire detector,due to the open flame was more sensitive.
作者
顾广悦
李磊
相坤
端木祥玲
刘海静
GU Guangyue;LI Lei;XIANG Kun;DUANMU Xiangling;LIU Haijing(Institute of Building Fire Research,China Academy of Building Research,Beijing 100013,China)
出处
《安全》
2020年第2期27-35,共9页
Safety & Security
基金
住房和城乡建设部研究开发项目(2018-K4-009)。
关键词
综合管廊
火灾自动报警探测器
温度
烟粒子浓度
utility tunnel
fire alarm detector
temperature
smoke particle concentration
