地铁站台公共区弥散送风系统结构参数研究  

Research on Structural Parameters of Diffuse Air Supply System in Public Areas of Subway Platforms

作　　者：邓保顺[1] 何磊[1] 余涛[2] 邱澄 Deng Baoshun;He Lei;Yu Tao;Qiu Cheng(China Railway First Survey and Design Institute Group Co.,Ltd,Xi’an,710043;School of Mechanical Engineering,Southwest Jiaotong University,Chengdu,610031)

机构地区：[1]中铁第一勘察设计院集团有限公司,西安710043 [2]西南交通大学机械工程学院,成都610031

出　　处：《制冷与空调（四川）》2024年第5期629-635,648,共8页Refrigeration and Air Conditioning

摘　　要：地铁站台公共区弥散送风系统(DASS)可以提供舒适的热环境,其结构设计参数会影响DASS送风效果。采用数值模拟方法,研究不同弥散送风板开口率、送风口数量、静压室高度以及下部空间高度等结构参数对站台公共区DASS送风效果的影响。结果表明:站台公共区气流分布均匀性和人员热舒适性随弥散送风板开口率和送风口数量的增加而增加;静压室高度在1.1m左右时的送风效果最好;下部空间高度越高,气流分布越均匀,但冷风感越强,综合初投资和系统送风效果,下部空间最优高度为3m。The diffuse air supply system(DASS)in the subway platform public area can provide a comfortable thermal environment,and the structural parameters influence the ventilation effect of DASS.This paper adopts the method of numerical simulation to study the effects of different factors such as the opening ratio of diffuse air supply panel,the number of air supply outlet,the height of plenum and the height of lower space on the ventilation effect of DASS in the platform public areas.The results show that both the uniformity of airflow distribution and the thermal comfort in the platform public area increase with the opening ratio of diffuse air supply panel and the number of air supply outlet.The case with the plenum height of 1.1 m has the best ventilation effect.The higher height of the lower space makes more uniform airflow distribution,while the draught increases.Considering the initial investment and system ventilation effect,the optimal height of the lower space is 3m.

关 键 词：地铁站台公共区 弥散送风系统 结构参数 送风效果 数值模拟 

分 类 号：TU831.1[建筑科学—供热、供燃气、通风及空调工程]