新型地铁车站空调系统设计分析

Design of new air-conditioning system for subway station

目前国铁车站采用传统的水冷式冷水机组+冷却塔方式进行供冷,供冷设备所占地下土建面积大;冷却塔放置城市街区地面,扰民并影响城市景观和谐。本文结合地铁车站既有建筑出入口顶棚,提出一套新型空调系统,对该系统的设计方案和要点进行分析。结果表明,相比传统空调系统,该系统制冷能效比EER≥3.5 kW/kW,无需占用专用机房,初投资低,可为地铁车站供冷方案的设计提供参考。

At present,the traditional water-cooled chiller combined cooling tower is used for cooling of domestic subway stations,and the cooling equipment occupies a large underground civil engineering area.The placement of cooling towers on the ground of city block disturbs residents,affecting the harmony of urban landscape.Combined with the entrance and exit ceiling of the existing buildings of the subway station,a set of new air-conditioning system is put forward,and its system design scheme and key points are analyzed.The results show that compared with the traditional air conditioning system,the refrigeration energy efficiency ratio of the new system is more than or equal to 3.5 kW/kW,it does not need to occupy the special machine room,and the initial investment is low,which can provide a reference for the design of the subway station cooling scheme.