摘要
随着中低运量城市轨道交通的兴起,车载智能化检测设备逐渐成为标准配置,火灾报警系统对保障列车运营安全发挥着至关重要的作用,因此需要重点研究适用于中低运量城市轨道交通列车的火灾报警系统技术方案。通过整理介绍不同类型列车火灾报警系统设计方案,对点型探测器方案、主机加点型探测器方案、主动吸入式探测器方案、主动式高压细水雾喷淋方案等几种在当前中低运量城市轨道交通列车使用的火灾报警系统方案进行了详细分析,分别从系统组成、性能表现、经济性、设备可维护性等角度剖析了不同设计方案的差异。点型探测器方案简单,成本较低,安装和维护较为方便,但防误报警性能较差,报警响应时间较长,不具备故障自诊断能力;主机加点型探测器方案防误报警性能较好,系统相对简单,成本中等,但报警响应时间较长;主动吸入式探测器方案以及主动式高压细水雾喷淋方案的防误报警性能好,报警响应时间短,但系统组成及维护较为复杂,成本较高。
With the growing adoption of medium-low capacity urban rail transit systems,intelligent onboard detection equipment has gradually become a standard feature.The fire alarm system plays a vital role in ensuring operational safety,making it essential to study technical solutions suitable for such trains.This paper reviews and compares different fire alarm system design schemes,including point-type detectors,hostplus-point-type detectors,active aspirating detectors,and active high-pressure water mist systems.These solutions are analyzed in terms of system composition,performance,cost-effectiveness,and maintainability.The point-type detector scheme is simple,cost-efficient,and easy to install and maintain,but it is prone to false alarms,has a relatively slow response time,and lacks self-diagnostic capabilities.The host-plus-pointtype detector scheme offers better false alarm resistance and moderate complexity and cost,though alarm response remains somewhat delayed.In contrast,active aspirating detectors and high-pressure water mist systems provide superior false alarm prevention and rapid response,but they involve more complex system structures and maintenance requirements,resulting in higher costs.
作者
胡亚军
HU Yajun(CRRC Puzhen Alstom Transport Systems Co.,Ltd.,Wuhu 241060,China)
出处
《智慧轨道交通》
2026年第1期55-59,共5页
INTELLIGENT RAIL TRANSIT
