屏蔽门地铁车站公共区空调负荷影响因素分析

Analysis on Influence Factors of Public Zone Air Conditioning Load in Subway Stations with Platform Screen Doors

介绍屏蔽门地铁车站公共区空调冷负荷的组成及其特性。以杭州地铁2号线某标准岛式地下车站为例,计算不同室内设计相对湿度下公共区空调系统的冷负荷及送风量,结果表明,提高设计相对湿度可以降低冷负荷及空调系统能耗。分析屏蔽门开启时的风量平衡,介绍屏蔽门渗漏风量的研究现状,提出渗漏风量形成的冷负荷计算方法。对公共区空调系统新风量的确定方法进行探讨,给出若干结论与建议。

The constitution and feature of the public zone air conditioning cooling load of subway stations with platform screen doors were introduced. Taking a standard island underground station in Hangzhou subway line 2 as the studying object,the author calcalated the cooling load and supply air rate of public zone air conditioning system under different relative humidity of different indoor designs. The result shows that the cooling load and energy consumption of air conditioning system will decrease with increasing relative humidity in design. The air rate balance under the condition when platform screen doors were open was analyzed. The current research status of leakage air flow rate of platform screen doors was illustrated. The method for calculating the cooling load caused by leakage air flow rate was recommended. The method for determining the fresh air volume of public zone air conditioning system was discussed. Some conclusions and recommendations were given.