定压差控制下变频调速水泵实际运行特性及相关问题分析  

Analysis on practical operation characteristics of variable-speed water pump under constant pressure difference and its relevant issues

作　　者：陈文辉 

机构地区：[1]中亿丰建设集团设计研究院有限公司

出　　处：《制冷与空调》2014年第6期120-123,共4页Refrigeration and Air-Conditioning

摘　　要：分析不同定压差方式下空调水系统变频调速二级泵的实际运行特性,指出在最不利末端定压差控制方式下用频率控制二级泵台数的加减存在的问题,并提出用流量等参数控制二级泵台数的加减的建议。The practical operation characteristics of variable-speed secondary water pump of air-conditioning system under variety of constant pressure difference control are analyzed.It is pointed out that issues caused by defining the number of secondary water pumps through motor frequency under the most unfavorable situation of controlling terminal pressure difference.It is proposed to control the number of secondary water pumps base on water flow instead.

关 键 词：中央空调 二级泵 变流量 变频调速 

分 类 号：TB657.2[一般工业技术—制冷工程]