单个排烟口最大允许排烟量问题探究
Maximum allowable volumetric flow rate of a single smoke exhaust inlet
摘要：
针对GB 51251—2017《建筑防烟排烟系统技术标准》第4.6.14条，即单个排烟口最大允许排烟量的相关问题进行了探究。回顾了该问题的历史研究情况，进行了公式的推导，并指出了公式的使用条件与注意事项。对于一些目前尚未完全明确的问题，也进行了尝试性分析，并给出了初步建议。
关键词：防烟排烟系统,排烟口,最大排烟量,排烟设计,烟气层
Abstract：
Discusses the issue about article 4.6.14 of GB 51251-2017 Technical standard for smoke management system in buildings, that is, the maximum allowable volumetric flow rate of a single smoke exhaust inlet. Reviews the historical research on this issue, deduces the formula, and points out the available conditions and precautions. Performs a tentative analysis and proposes some preliminary suggestions for some problems that have not been completely clarified at present.
Keywords:smoke management system, smoke exhaust inlet, maximum volumetric flow rate, smoke exhaust design, smoke layer