中央空调系统水泵运行工况实测调查及节能分析

Operating Condition's Measured Research and Energy-saving Analysis of Pump in Central Air Conditioning System

对8个中央空调工程的水泵运行工况进行实测,结果表明,有7个工程的水泵实测流量大于设计流量,平均增幅达22.72%。这7个工程,水泵额定工况的流量大于设计流量的幅度平均为12.56%,额定工况的扬程大于合理扬程的幅度平均为93.98%。7个工程水泵的实际能耗平均为合理工况能耗的2.08倍。如果采用节流的方式使系统流量达到设计流量,则7个工程的水泵能耗平均可以减少9.57%。

The operating conditions of pump in eight central air conditioning projects were measured,and the results showed that the measured flow of pump was greater than the designing flow in seven projects,the measured flow was average 22.27% greater than the design flow.In this seven projects,the rated flow of pump was average 12.56% greater than the the designing flow,and the rated head of pump was average 93.98% greater than the designing head.The measured energy of pump was average of 2.08 times for the energy of reasonable conditions in seven projects.If using the way of throttling to make the flow of system reach the designing flow,then the throttling energy was average 9.57% lower than the measured energy.