暖通空调>期刊目次>2020年>第1期

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

刘成
青岛绿城建筑设计有限公司

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

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