技术中心

【中文摘要】 本文指出了空调水系统的节能在建筑节能中的重要性,初步分析了空调水系统定水量运行方式存在的弊端,理论上分析了变水量运行的可行性,介绍了几种常用的变水量控制策略,通过水泵工作曲线和管网特性曲线对空调水系统变水量运行进行了节能分析,并比较了几种变水量控制策略下水泵的节电率。 【英文摘要】 This article points out the importance of energy-saving of air-conditioning water system in the whole building energy conservation, preliminarily analyzes deficiency of CWV air-conditioning water system, analyzes the operation feasibility of VWV in theory, and introduces several commonly used VWV control strategies. This article writes out the energy-saving analysis results of VWV air-conditioning water system with the aid of the pump running curve and pipe network characteristic curve and compares energy-saving rate of pumps under respective VWV control strategy. 【中文关键词】 定水量(CWV); 变水量(VWV); 干管压差控制; 末端压差控制; 最小阻力控制; PI调节 【英文关键词】 energy saving; constant water volume (CWV); variable water volume (VWV); main pressure difference control; terminal pressure difference control; resistance minimizing control; proportion integration regulator