地铁车站高效空调系统应用分析
Application analysis of high-efficiency air conditioningsystems in subway stations
摘要：
针对某8A编组地铁车站,对变频螺杆式冷水机组高效空调系统和磁悬浮直膨式空调机组高效空调系统2种方案进行了系统配置和设备选型、空调季能耗、建筑规模及经济效益的分析比较。结果显示:磁悬浮直膨式空调机组方案较变频螺杆式冷水机组方案能耗高39 274 kW·h/a,费用增加30 084元/a;磁悬浮直膨式空调机组方案的空调机房建筑面积减小,但增加了室外占地;根据年值法,综合考虑建筑规模、初投资及运营维护等因素,北京地区典型8A编组地铁车站适合采用变频螺杆式冷水机组方案,但对建设管理要求较高。
Abstract：
For an 8A subway station, the system configuration and equipment selection, energy consumption in the air conditioning season, building scale, and economic benefits are analysed and compared on two schemes: a high-efficiency air conditioning system using variable frequency screw chillers and a high-efficiency air conditioning system using magnetic levitation direct-expansion air conditioning units. The results show that the magnetic levitation direct-expansion air conditioning unit scheme consumes 39 274 kWh/a more energy than the variable frequency screw chiller scheme, and the cost increases by 30 084 yuan/a. The magnetic levitation direct-expansion air conditioning unit scheme reduces building area, but increases the outdoor area. According to the annual value method, after comprehensively considering factors such as building scale, initial investment, and operation and maintenance, the typical 8A subway station in Beijing is suitable for adopting the variable frequency screw chiller scheme, but its requirements for construction and management are higher.
Keywords:ubway station; high-efficiency air conditioning system; magnetic levitation direct-expansion air conditioning unit; variable frequency screw chiller; energy consumption; economic benefit; equipment selection; building scale