变频离心式冷水机组工程应用分析

Engineering application analysis on frequency conversion centrifugal water chiller

以奉贤区青少年活动中心为例,通过计算设计日逐时冷负荷和不同负荷区间的累计冷负荷分布,得到不同负荷区间的运行时间、累计冷负荷以及与其对应的室外平均干/湿球温度。提出4种变频离心式冷水机组应用方案,对各方案冷水机组的初投资、年运行能耗、年运行费用进行比较分析,确定适合此项目的变频离心式冷水机组数量,以期为变频离心式冷水机组的应用提供参考。

Taking Fengxian District Youth Activity Center as an example,by calculating its cooling load hour by hour and the cumulative cooling load distribution of different load intervals,the operating time,cumulative cooling load value and corresponding outdoor average dry and wet bulb temperature of different load intervals are obtained.Four application schemes of frequency conversion centrifugal water chillers are proposed,the initial investment,the annual operating energy consumption and annual operating costs of the water chiller in each scheme are compared and analyzed.The choice of the number of frequency conversion centrifugal water chillers suitable for this project is determined,which hopes to provide reference for the application of frequency conversion centrifugal water chiller.