冷水机组群及冷冻水系统变温差控制策略探讨  

Discussion on Variable Temperature Difference Control of Chiller Group and Chilled Water System

作　　者：陈震宇 Chen ZhengYu

机构地区：[1]福建省建筑设计研究院有限公司

出　　处：《洁净与空调技术》2023年第4期35-37,共3页Contamination Control & Air-Conditioning Technology

摘　　要：以某项目为例,分析冷水机组群负载率变化规律,提出一种冷水机组群及其冷冻水输配系统变供回水温度、空调冷冻水泵定流量变频运行的优化控制策略,并与常规控制策略进行能耗对比。对比结果显示:目前常规设计采用的供回水温度7℃/12℃、温差5℃的措施偏于保守,具有明显的优化空间。优化控制策略逻辑简易可行,节能减排效益可期。Taking a project as an example,this paper analyzes the load rate change rule of the chiller group,proposes an optimal control strategy for variable water temperature of the chiller,constant flow and variable frequency operation of the air-conditioning chilled water pump.Compared with the conventional control strategy,the comparison results show that the conventional measures of supply and return water temperature of 7/12℃ and temperature difference of 5℃ are conservative.The logic of optimization control strategy is simple and feasible,and the benefits of energy conservation and emission reduction can be expected.

关 键 词：冷水机组群 变供回水温度 控制策略 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]