中文摘要：

根据建筑供水节能的发展需要,研究能够利用市政供水管网余压的叠压供水技术,并针对叠压供水与传统二次供水融合过程中存在的问题,提出了一种适于叠压供水系统的＂多拖多＂的变频节能控制新方法,给出了变频控制的逻辑,分析了该方法下叠压供水的节能效果,为建筑供水节能提供技术支撑。

英文摘要：

Due to the need of water supply energy conservation in buildings,the pressuresuperposed water supply based on municipal pipe network is discussed. Aiming at the problem existing in the process of pressure-superposed water supply and the traditional water supply,a new method of frequency control for water pump and the logic of frequency control are proposed,then the energy saving effect of this method is analyzed. It is expected that the obtained results can provide a technical support for water supply energy conservation in buildings.