地铁车站围护结构耦合式单U埋管系统换热研究  

Research on heat transfer of coupled single buried U-pipe systemformetro station envelope

作　　者：余元波[1] 夏继豪[1] 刘俊[1] 车轮飞[1] 陈玉远[1] Yu Yuanbo;Xia Jihao;Liu Jun

机构地区：[1]中铁第四勘察设计院集团有限公司,湖北武汉430063

出　　处：《现代城市轨道交通》2023年第9期41-45,共5页Modern Urban Transit

基　　金：国家重点研发计划资助项目(2019YFC0605105)。

摘　　要：文章以地铁车站围护结构耦合式单U埋管系统为研究对象,建立车站连续墙、底板和顶板等部位的埋管换热模型。研究发现:车站连续墙、底板的埋管延米换热量均在40~50W/m范围内,顶板的埋管延米换热量约为10W/m;进水温度越高、原始地温越低,则埋管延米换热量越大;埋管循环水流速越大,出水温度越高;随着埋管间距的增加,埋管延米换热量呈现先增加后保持稳定状态。The article takes the coupled single buried U-pipe system of metro station envelope as the research object,and establishes a buried pipe heat transfer model for the continuous wall,bottom plate,and top plate of the station.The research has found that the heat transfer rate per meter of the buried pipes on a continuous wall and bottom plate of the station is between 40 and 50 W/m,while the heat transfer rate per meter of the buried pipes on a top plate is only about 10 W/m;the higher the inlet temperature and the lower the original ground temperature,the greater the heat transfer rate per meter of the buried pipe;the higher the circulating water flow rate in the buried pipe,the higher the outlet temperature.As the distance between buried pipes increases,the heat transfer rate per meter of buried pipes shows a trend of first increasing and then decreasing.

关 键 词：地铁车站 围护结构 耦合式埋管 换热模型 延米换热量 

分 类 号：U231.4[交通运输工程—道路与铁道工程]