中央空调变流量冷水系统变压差控制方法应用研究  

Study on variable pressure control for VWV cooling water systems

作　　者：于世晓 王志亮[2] 易伟[2] 曹晓飞[2] 

机构地区：[1]青岛市供热办公室,青岛266000 [2]青岛理工大学环境与市政工程学院,青岛266033

出　　处：《青岛理工大学学报》2012年第4期89-92,102,共5页Journal of Qingdao University of Technology

摘　　要：提出了中央空调变流量冷水系统中二次泵的变压差控制策略,以空调冷冻水系统最不利末端用户两端的压差作为二次泵变频控制的控制信号,改变二次泵的频率,使二次泵输送的冷冻水量和空调用户所需的冷冻水量相等.进行了数值仿真模拟,仿真结果表明二次泵变压差控制不仅节约二次泵的输送能耗,而且能维持冷机的COP在一个较高水平.This paper advances the variable pressure control strategy of the secondary pump in variable water vloume（VWV） cooling water systems,which treats the pressure of the end users as the control signal of the secondary pump in VWV cooling water systems.By changing the frequency of the secondary pump,the frozen water of the secondary pump is equal to the required frozen water of the air condition users,and the use of simulation software for numerical simulation.The results show that it saves transportation energy consumption of the secondary pump and maintain the COP at a high level.

关 键 词：中央空调水系统 二次泵 压差控制 节能 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]