屏蔽门制式地铁车站冬季通风策略与效果分析
Winter ventilation strategies and effect analysis of underground railway stations with platform screen doors
摘要：
对夏热冬冷地区2个屏蔽门制式的地铁车站进行了测试，对比了原有冬季通风模式与停机模式的通风效果与环境参数。测试结果表明：原有冬季通风模式存在过量新风供给，由于列车周期性进出车站引起活塞效应，车站出入口存在大量渗风，占新风总供给的65%以上，机械新风占比有限；停机模式下，测试车站出入口渗入新风量为2.8万~4.9万m2/h，足以满足当前乃至设计高峰客流量下的人员新风需求，测得公共区域CO2体积分数低于800×10-6。
Abstract：
Tests two underground railway stations with platform screen doors in hot summer and cold winter zone. Compares the ventilation effects and environmental parameters of the original winter ventilation strategy and shutdown strategy. The results show that there is excessive outdoor air supply in public area with the original winter ventilation strategy. Piston effect caused by the periodic departure and arrival of trains leads to considerable outdoor air intake through entrances which accounts for more than 65% of the total outdoor air supply, while the mechanical outdoor air supply accounts for the less proportion. Without mechanical ventilation, outdoor air intake through entrances is 2.8×104 to 4.9×104 m3/h, which can satisfy the people demand even in rush hours and guarantee the CO2 concentration less than 800×10-6 during the monitoring period.
Keywords:underground railway station, public area, ventilation strategy, outdoor air supply, air infiltration, screen door