细水雾对障碍物挡板火灭火有效性的实验研究  

The Validity Experimental Study of the Obstacle Fires Extinguishment by Water Mist

作　　者：刘晅亚[1] 陆守香[1] 黄玥[1] 陈国庆[1] 

机构地区：[1]中国科学技术大学火灾科学国家重点实验室,合肥230026

出　　处：《中国工程科学》2006年第5期88-93,97,共7页Strategic Study of CAE

基　　金：中国科学技术大学"十五""221"资助项目

摘　　要：在不同障碍物挡板阻隔条件下,就细水雾对油池火的灭火效果进行了实验研究,分析了不同空间位置的障碍物挡板对细水雾灭火效果的影响,采用FDS4.0对细水雾与不同类型障碍物挡板油池火的相互作用过程的模拟结果表明:障碍物结构与类型影响着细水雾直接作用于油池火上方的水雾通量,油池火上方的水雾卷吸量越大,细水雾对障碍火的灭火效果越明显。The full scale simulation cabin and pumping pressure water mist system were employed to study the validity of the obstacle fires extinguishment by water mist on the conditions of different obstacles baffles. The validity of water mist system and main influencing factors on the extinguishment of the obstacle heptanes fires were analyzed. FDS （4.0.5） was employed to study the interaction of the water mist and obstacle oil fires and the extinguishing rules and factors were determined primarily. The experimental and simulation results show that the structure and style of the obstacle fires are important to influence the validity of the obstacle fires extinguishment by water mist. The more the water mist is entrained by the airflow, the more effective of the extinguishment by water mist.

关 键 词：细水雾 障碍挡板 灭火效果 卷吸 

分 类 号：X932[环境科学与工程—安全科学]