冷冻水泵节能运行模拟分析  

Simulation on energy saving operation of chilled water pump

作　　者：赵明名 吕子强[1] 沈剑挥 ZHAO Mingming;LV Ziqiang;SHEN Jianhui(School of Civil Engineering,University of Science and Technology Liaoning,Anshan 114051,China;Energy Control Center of Anshan Iron and Steel Group Chaoyang Iron and Steel Co.,Ltd.,Chaoyang 122004,China)

机构地区：[1]辽宁科技大学土木工程学院,辽宁鞍山114051 [2]鞍钢集团朝阳钢铁有限公司能源管控中心,辽宁朝阳122004

出　　处：《辽宁科技大学学报》2022年第1期71-75,共5页Journal of University of Science and Technology Liaoning

基　　金：辽宁省自然科学基金(2019-ZD-0272);辽宁省教育厅项目(2020FWDF02)。

摘　　要：水泵是空调系统的主要耗能设备,随着空调末端负荷的改变,水泵需要做出相应的水量调节,这是水泵节约能源的重要措施。以上海市某高校办公建筑的冷冻水泵为研究对象,采用DeST能耗模拟软件计算全年空调负荷,统计负荷率和时间频数,对比同步定频、定频+变频、同步变频三种形式下水泵能耗、冷水机组能耗、水泵能耗占比、节能率和减碳量。计算结果表明,同步变频水泵能耗占总能耗的8.25%,相对于定频水泵节能量达到20.34%,每年可以减少9.17 t CO_(2)排放,是最适合该建筑的冷冻水泵形式。为“双碳”目标下降低建筑制冷能耗提供参考。As the main energy-consuming equipment of an air conditioning system,water pump should be able to regulate water volume according to terminal load change,which is an important measure to save ener-gy.In this paper,the chilled water pump of a university office building in shanghai is studied,and the energy consumption simulation software DeST is used to simulate the annual air-conditioning load.According to the statistics of the load rate and time frequency,energy consumption of the water pump and the water chilling unit,ratio of the water pump energy consumption,energy saving rate,and carbon reduction amount are com-pared under three modes of synchronous constant frequency,constant frequency+variable frequency,and synchronous variable frequency.The results show that the energy consumption of the synchronous variable fre-quency water pump accounts for 8.25%of the total energy consumption,saving up to 20.34%compared with the constant frequency pump.The synchronous variable frequency water pump can reduce 9.17 t CO_(2) emission every year,and it is considered as the most suitable chilled water pump for the building.Aiming at the“dual carbon”goal,this work provides reference for reduction of cooling energy consumption for buildings.

关 键 词：冷冻水泵:变频调节 节能率 减碳量 

分 类 号：TU602[建筑科学—建筑技术科学]