摘要
设计了ETFE薄膜的大尺寸火灾试验,研究了在4MW火灾规模下ETFE薄膜的燃烧特性,并探讨了在标准试验和大尺寸火灾试验条件下ETFE膜材燃烧是否出现熔滴现象。结果表明:在4 MW火灾规模下,ETFE薄膜在火焰可以接触到的位置发生软化及烧穿,并有滴落物,在火源无法接触到的位置保持完整性,未发生火蔓延;符合GB 8624-2012规定的B1(d0)级要求的ETFE薄膜在实际火灾中很可能出现熔滴现象,不能仅以标准试验的结果判定ETFE薄膜在实际火灾中是否会出现熔滴现象。ETFE薄膜燃烧是否发生熔滴现象与薄膜的尺寸、安装方式和受火情况等有关。
In this paper,a large-scale fire test of ETFE film was designed,the combustion characteristics of ETFE film under a fire with a heat release rate of 4 MW were studied,and whether the ETFE film burns with droplets under standard test and largescale fire test conditions was discussed.The results showed that with the heat release rate of 4 MW,the ETFE film where the flame can reach has softened,burned through and dripped,and where the flame can't reach has maintained integrity.The ETFE film that meets the B1(d0)level requirements specified in GB 8624-2012 is likely to show droplets in actual fires,and whether ETFE film will drip in actual fires shall not only depend on the results of standard tests.Whether the burning of ETFE film will cause droplets is related to the size of the film,installation method and fire conditions,etc.
作者
颜明强
李利君
张泽江
YAN Ming-qiang;LI Li-jun;ZHANG Ze-jiang(Sichuan Fire Science and Technology Research Institute of MEM,Sichuan Chengdu 610036,China)
出处
《消防科学与技术》
CAS
北大核心
2021年第1期51-54,共4页
Fire Science and Technology
基金
国家重点研发计划项目(2018YFC0807600,2018YFC0807602)
应急管理部消防救援局科研计划项目(2018XFGG19)。
