摘要
通过对储煤场煤堆火灾危险性进行分析,并结合大涡场模拟软件FDS对不同防火间距的储煤场煤堆火灾数值模拟。通过研究发现,封闭式储煤场内煤堆发生火灾时,着火建筑内不同高度处的热辐射通量由低至高逐渐增强,且符合指数函数关系,并推断出火场内热辐射主要来自着火煤堆和火灾产生的高温烟气。提出此类建筑内煤堆在分堆堆放的同时还应控制煤堆高度以保证火灾时安全的建议。
In order to prevent fire occurring at one point spreading to the whole pile,in large coal storage plant,coal are always piled individually in several piles.However,the fireproof distance between coal piles is not specified in current regulations.By analyzing the danger of coal pile fire in coal storage plant,in addition to study the coal piles fire of different fireproof distance with the help of large-eddy simulation software FDS.This article concludes that heat radiation of this kind of fire comes from high temperature smoke and suggests to set the fire-proof distance of coal piles stored indoor 10 meters.
出处
《消防科学与技术》
CAS
北大核心
2015年第5期587-591,共5页
Fire Science and Technology
基金
江苏省土木工程环境灾变与结构可靠性重点实验室开放基金项目(JSKL2011YB11)
关键词
封闭式储煤场
FDS
防火间距
热辐射
coal storage plant
FDS
fire-proof distance
heat radiation
