摘要
讨论现行GB 50016-2006《建筑设计防火规范》中甲乙类可燃气体厂房泄压面积计算公式的表达形式、适用条件和应用范围,并与现行NFPA 68和EN 14994标准中给出的计算公式进行比较。分析燃料特性参数、长径比、最大内部超压对甲乙类厂房泄压面积的影响。结果表明,长径比和最大内部超压对厂房的泄压面积有较大影响,当最大内部超压一定时,随厂房长径比的增加,泄压面积的变化范围不超过20m2。
The expression styles, applicable conditions and appli- cable range of the pressure relief area calculating method in the present Code of Design on Building Fire Protection and Preven- tion were compared with that of NFPA 68 and EN 14994. Be- sides, the influences of fuel characteristic constant, length to diameter ratio and maximum explosion overpressure on the pressure relief area were discussed. The results showed that the variation ranges of the pressure relief will not surpass 20 m2 while the increase of length to diameter ratio as the maximum explosion overpressure keeps constant.
出处
《消防科学与技术》
CAS
北大核心
2012年第2期129-132,共4页
Fire Science and Technology
关键词
甲乙类厂房
泄压面积
最大内部超压
长径比
泄压比
class A and B factory building
pressure relief area
maximum explosion overpressure
length to diameter
pressurerelief ratio
