铁道科学与工程学报2018，Vol.15Issue(5)：1278-1285,8.
带上盖开发地铁车辆段咽喉区排烟系统研究
Study on the smoke exhaust system for throat area of metro depot with over development
摘要
Abstract
To explore a reasonable design scheme of smoke exhaust system of the throat area in metro depot with over development, the key parameters and smoke control effect of natural smoke exhaust mode and combined smoke exhaust mode were studied by using the method of theoretical analysis and numerical simulation based on the basic theory of fire science and fluid mechanics. The results showed that: under the natural ventilation condition, it is two times function between the smoke exhaust efficiency with the opening rate of the cover, the natural smoke exhaust efficiency of the exhaust ports on the cover reaches the maximum when the opening rate reached 4.73%. Under the combination exhaust condition, when the height of smoke screen between the natural ventilation area and the mechanical exhaust area increased to 2.5 m, the smoke would be controlled within the fire area. When fire occurred in the mechanical exhaust area, the smoke would be controlled effectively under the combined exhaust mode with the mechanical smoke exhaust volume calculated by using plume model.关键词
地铁车辆段/上盖开发/咽喉区/组合排烟/挡烟垂壁/排烟效率Key words
metro depot/over development/throat area/combined smoke exhausting/smoke screen/smoke exhaust efficiency分类
建筑与水利引用本文复制引用
张新,罗俊礼,徐志胜,倪天晓,彭锦志,冉启兵..带上盖开发地铁车辆段咽喉区排烟系统研究[J].铁道科学与工程学报,2018,15(5):1278-1285,8.基金项目
中南大学中央高校基本科研业务费专项资金资助项目(2013zzts049) （2013zzts049）
湖南省教育厅科学研究项目(16c1077) （16c1077）
