高压细水雾系统在高速列车上的数值模拟及验证  

Numerical simulation and verification of high pressure water mist system on high speed train

作　　者：杨柄航 朱杰[1,2] YANG Binghang;ZHU Jie(Engineering College of Sichuan Normal University,Chengdu 610101)

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

出　　处：《工业安全与环保》2022年第7期26-29,共4页Industrial Safety and Environmental Protection

基　　金：四川省科技厅应用基础研究重大项目(19YYJC2835)。

摘　　要：目前国内高速列车上尚未配备一套完整灭火系统,且车厢内部相对封闭且人员密集,着火隐患较多,一旦发生火灾后果严重。高压细水雾灭火系统以其高效、经济、绿色等特点已成功应用于各种场合。前期在高压细水雾灭火系统应用于CRH380D的可行性研究基础之上,针对两种方案的典型参数进行FDS数值模拟分析其烟水耦合全过程。对比两种方案确定其技术参数为喷头高度h=2.1 m,流量系数k=5.0 L/(min·m^(2)),压力系数p=15 MPa,能够在115 s内将明火扑灭,具有较高的适用性。At present,domestic high-speed trains are not equipped with a complete fire extinguishing system,and the interior of the compartment is relatively closed,crowded with people,and there are many fire hazards.Once the fire occurs,the consequences are serious.High pressure water mist fire extinguishing system has been successfully applied in various occasions because of its high efficiency,economy and green characteristics.In the early stage,Based on the feasibility study of the high-pressure fine water mist fire extinguishing system applied to CRH380D,FDS numerical simulation was conducted to analyze the whole process of smoke and water coupling for the typical parameters of the two schemes.comparison of the two programs to determine the technical parameters of the nozzle height h=2.1 m,flow coefficient k=5.0 L(/min·m^(2)),pressure coefficient p=15 MPa,able to extinguish the open fire in 115 s,with high applicability.

关 键 词：高速列车 高压细水雾 可行性 FDS数值模拟 烟水耦合 

分 类 号：U270.389[机械工程—车辆工程]