火源位置对高速列车车厢火灾烟气蔓延影响研究  

Research on the Influence of Fire Source Location on Fire Smoke Spread in High-Speed Train

作　　者：王亮 朱杰 WANG Liang;ZHU Jie(College of Engineering,Sichuan Normal University,Chengdu 610101,China;Sichuan Provincial Key Laboratory of Fire Prevention and Control,Chengdu 610101,China)

机构地区：[1]四川师范大学工学院,成都610101 [2]四川省公共火灾防治技术重点实验室,成都610101

出　　处：《交通工程》2022年第3期59-64,共6页Journal of Transportation Engineering

基　　金：四川省科技厅应用基础研究重大项目19YYJC2835“特长隧道内高速列车移动火灾特性及防控关键技术研究”.

摘　　要：以CRH380D型高速列车为研究对象,研究车厢内9个火源位置下火灾烟气蔓延规律.结果显示,车厢前部起火时,100 s内车厢内烟气层便下降至1.8 m,其中火灾发生在前部走廊时,车厢内烟气浓度最高;车厢中部起火时,140 s车厢内烟气便下降至1.8 m,150 s内1.8 m处烟气温度便达到60℃;车厢尾部起火时,150 s内车厢内烟气便下降至1.8 m,其中火灾发生在尾部行李架时,车厢内烟气浓度上升速度最快.整体分析后得出无论车厢哪个部位起火,走廊与座椅火灾,较行李架火灾,火灾危险性更大.In this paper,CRH380D high-speed train is taken as the research object to study the smoke spread law of fire at nine fire sources in the car.The results showed that the smoke layer in the car dropped to 1.8 m within 100 s when the front of the car caught fire.The smoke concentration in the carriage was the highest when the fire happened in the front corridor.When the fire broke out in the middle of the car,the smoke in the car dropped to 1.8 m in 140 s,and the smoke temperature at 1.8 m in 150 s reached 60℃.When the rear of the car caught fire,the smoke in the car dropped to 1.8 m within 150 s.When the fire occurred on the rear luggage rack,the smoke concentration in the car increased fastest.Based on the analysis,it is concluded that no matter which part of the car is on fire,corridor and seat fires are more dangerous than luggage rack fires.

关 键 词：高速列车 数值模拟 火源位置 烟气浓度 烟气层高度 

分 类 号：U491[交通运输工程—交通运输规划与管理]