严寒地区屏蔽门地铁站冬季热环境改善方法及效果分析
Winter thermal environment improvement method and effect analysis of screen door underground railway station in severe cold zone
摘要：
基于严寒地区冬季屏蔽门地铁站热环境优于安全门地铁站的模拟结果，对屏蔽门地铁站热环境改善措施进行了分析研究。结果表明，出入口通道安装门帘、门帘+热风幕2种方法均可提升车站内温度，但是也存在车站内空气品质较差且热风幕耗能较大等问题。提出了一种基于隧道废热利用的站台新风系统，结合门帘的使用，该系统可以显著改善车站的热环境和空气品质。相比于热风幕，基于隧道废热利用的站台新风系统可降低能耗约16.5%，为严寒地区屏蔽门地铁站冬季环控系统的设计运行提供了参考。
Abstract：
Based on the simulation results that the thermal environment of the screen door underground railway station is better than that of the safety door underground railway station in the severe cold zone in winter, the measures for improving the thermal environment of the screen door underground railway station are analysed and studied. The results show that the installation of door curtains or door curtains plus hot air curtains in the entrance and exit channels can increase the temperature in the station, but there are also problems such as poor air quality in the station and large energy consumption of hot air curtains. A platform outdoor air system based on tunnel waste heat utilization is proposed, which can significantly improve the thermal environment and air quality of the station in combination with the use of curtains. Compared with the hot air curtain, the platform outdoor air system based on the waste heat utilization of the tunnel can reduce the energy consumption by about 16.5%, which provides a reference for the design and operation of the environmental control system of the screen door underground railway station in the severe cold zone in winter.
Keywords:severe cold zone; underground railway station; screen door; thermal environment; CO2 concentration; air quality