地铁车站环控系统设计中的一些想法

研究目的:目前在地铁设计中,设计的新风量及空调负荷基本按30年后的远期标准设计,这就造成了能 源的浪费,本文对此进行了分析,提出了一些改进方法,推荐一些新技术,以达到节能目的? 研究方法:(1)新风量按CO2浓度进行控制,新风单独处理;(2)空调负担由2组空调机分别控制,一组负担 固定的冷负荷,一组负担变动的冷负荷;(3)推荐有条件车站可采用冰蓄冷及地源热泵。 研究结论:(1)调节新风量降低了新风负荷;(2)对可变空调冷负荷进行调节,节约了能耗;(3)地下站采用冰 蓄冷系统可减少电容量40％,高架车站采用地源热泵机组比变冷媒流量多联机可减少电耗30％。

SOME THINKINGS ON THE DESIGN OF ENVIRONMENT CONTROL SYSTEM IN THE METRO STATION

Research purpose: The energy waste caused by determination of fresh air requirement and cooling load based on the predicted statistics of 30 years later in the design of current underway enviroment system, this paper suggested and recommend some new technology for saving energy. Research methods:(1) According to the indoor CO2 concentration control fresh air requirement, the fresh air should be handled single. (2) The stable indoor cooling load, variable fresh air and human cooling load could be handled by different units.(3)The supply of the ice storge system and the earth-source heat pump on elevator station may be recommended. Research conclusion: (1)To control fresh air requirement, it could reduce fresh air cooling load.(2)To handled the variable cooling load, it could save energy.(3)To make use of ice storgy system under subway station environment system, the cost of electrical loads would reduce 40%, and the supply of the earth-souce heat pump on elevator station would reduce 30% than variable refrigeration volume system.