上海地铁某车站空调系统高效制冷机房改造实测分析

Experimental Analysis of Renovation of High-Efficiency Refrigeration Room for Air Conditioning System at a Station in Shanghai Subway

地铁车站空调系统高效技术是当前轨道交通节能降碳的主要手段,针对上海某地铁车站制冷机房高效化改造的具体情况、改造效果、能效提升进行了详细的分析和研究。改造选择了磁悬浮冷水机组,应用了变频技术来优化水泵的运行,改造后空调季制冷机房平均能效比达到5.16,年节电量约为30万kWh,节能效果显著。通过对制冷机房运行数据进行对比分析得知,负载率的优化对冷水机组能效具有直接而显著的影响,通过调整冷机出水温度和优化水泵变频策略,能进一步提高制冷机房的能效,为地铁车站制冷机房高效化改造和能效提升提供参考和帮助。

The high-efficiency technology of air conditioning system in subway stations is currently the main means of energy saving and carbon reduction in rail transit.A detailed analysis and study were conducted on the specific situation,transformation effect,and energy efficiency improvement of the high-efficiency transformation of the refrigeration room in a subway station in Shanghai.The magnetic suspension chiller was selected for the renovation,and the variable frequency technology was applied to optimize the operation of the water pump.After the renovation,the average energy efficiency ratio of the air conditioning season refrigeration room reached 5.16,and the annual power saving was about 300,000 kWh,which had significant energy saving effect.Through comparative analysis of the operating data of the refrigeration room,it was found that optimization of the load rate had a direct and significant impact on the energy efficiency of the chiller.By adjusting the chiller outlet temperature and optimizing the variable frequency strategy of the water pump,the energy efficiency of the refrigeration room could be further improved,providing reference and assistance for the high-efficiency renovation and energy efficiency improvement of the refrigeration room in subway stations.