不同风速对聚氨酯保温板材水平顺风火蔓延特性的影响  

Effects of different wind speed on horizontal downwind fire spread characteristics of polyurethane insulation board

作　　者：刘天昊 方廷勇[1] 马鑫 王经纬 夏雲飞 万露露 李浩瀚 李旺 何灿 Liu Tianhao;Fang Tingyong;Ma Xin;Wang Jingwei;Xia Yunfei;Wan Lulu;Li Haohan;Li Wang;He Can(School of Civil Engineering,Anhui Jianzhu University,Hefei 230601,China;School of Environment and Energy Engineering,Anhui Jianzhu University,Hefei 230601,China)

机构地区：[1]安徽建筑大学土木学院,安徽合肥230601 [2]安徽建筑大学环境与能源工程学院,安徽合肥230601

出　　处：《湖南文理学院学报（自然科学版）》2020年第3期82-85,共4页Journal of Hunan University of Arts and Science(Science and Technology)

基　　金：国家“十三五”重点研发计划项目(2017YFC0803300);火灾科学国家重点实验室开放课题(HZ2019-KF13);安徽省自然科学基金项目(190085QE250);安徽省高校协同项目(GTXXT-2019-027)。

摘　　要：利用聚氨酯保温板材燃烧实验平台和模拟环境风可调节风速的装置进行实验,研究了在6种不同风速环境影响下,聚氨酯保温板材(PU)水平顺风火蔓延的特性,获得了火焰前锋形态、火蔓延速率、质量损失速率以及燃烧率等重要特征参数。结果表明:随着风速的不断增大,火蔓延速率和质量损失速率也随之增大,而板材的燃烧率却呈现出先增大后减小的变化趋势。The characteristics of horizontal downwind fire spread of polyurethane thermal insulation board(PU)under the influence of six different wind speed environments are studied by using the combustion experimental platform of PU thermal insulation board and the device simulating ambient wind which can adjust wind speed,the important characteristic parameters such as the flame front shape,the flame spreading rate,the mass loss rate and the combustion rate are obtained.The results show that with the increase of wind speed,fire spread rate and mass loss rate also increase,while the burning rate of plate increases first and then decreases.

关 键 词：聚氨酯保温板材 不同风速 火蔓延 燃烧率 

分 类 号：TU551[建筑科学—建筑技术科学]