地铁站台门漏风量特性分析

Analysis of Air Leakage Characteristics of Subway Platform Door

利用一维数值模拟软件建立了地铁线路一维通风网络模型,对列车停站时间、行车周期、轨行区排风量等因素影响下的地铁站通风量进行了分析。行车周期120 s、144 s、180 s、360 s时,停站时间由20 s增至40 s,站台门平均进风量增加约31.39%~40.74%,站台门平均出风量增加约为10.23%~15.16%。行车周期由120 s增至360 s时,站台门平均进风量下降约73.46%。行车周期120 s时,当站台每侧轨行区排风量由30 m3/s增至50 m3/s,站台门平均进风量下降约为30.46%~34.07%。站台门平均出风量增加约为33.10%-34.46%。

One-dimensional numerical simulation is used to establish one-dimensional ventilation network model of subway line,and the ventilation rate of subway station under the influence of train stopping time,driving interval and exhaust air volume in track running area is analyzed.When the driving interval is 120 s,144 s,180 s,360 s,and the dwelling time increases from 20 s to 40 s,the average inlet air volume of platform door increases by 31.39%~40.74%,and the average air outlet volume of platform door increases by 10.23%~15.16%.When the driving interval increases from 120 s to 360s,the average inlet air volume of PSD decreases by 73.46%.When the driving interval is 120 s,and the exhaust air volume of each side of the platform increases from 30 m3/s to 50 m3/s,the average inlet air volume of platform door decreases by 30.46%~34.07%,and the average air outlet volume of platform door increases by 33.10%~34.46%.