地铁车站通风空调系统设计、运行现状及研究展望
Design, operating status and research prospects of ventilation and air conditioning systems in underground railway stations
摘要:
分析了国内地铁车站通风空调系统的设计、运行现状,重点关注了车站通风空调系统负荷组成及占比情况,对负荷计算、空调系统设计中需关注的问题进行了探讨;给出了系统实际运行的测试结果,表明车站环控系统存在新风量及实际新风耗冷量偏大等问题。从新风与渗透风变化规律、温湿度与新风分开处理、车站冷源及末端设备等方面对地铁通风空调系统的设计、研究进行了展望。
Abstract:
Analyses the design and operating status of ventilation and air conditioning systems in underground railway stations in China. Pays close attention to the load constitution and their proportions. Discusses the problems to be concerned in load calculation and air conditioning system design. Presents the test results of the actual system operation. The results show that there are excessive outdoor air rate and outdoor air cooling consumption in the environment control systems of underground railway stations. Prospects the design and research of air conditioning system in underground railway stations from the aspects of variation of outdoor air and infiltration air, separate processing of temperature and humidity, outdoor air, cold source, end equipment, etc.
Keywords:underground railway station, ventilation and air conditioning system, design load, infiltration air, operation