高效制冷机房水蓄冷模式节能优化控制方法研究  

Study on Energy-saving Optimal Control Method of Water Storage Mode of High Efficiency Chiller Plant Room

作　　者：胡钦 李元阳 方兴 邱艺德 刘峥 岳宝 费杰 王聪 阎杰 HU Qin;LI Yuanyang;FANG Xing;QIU Yide;LIU Zheng;YUE Bao;FEI Jie;WANG Cong;YAN Jie(Guangdong Midea HVAC Equipment Co.,Ltd.,Foshan 528311,Guangdong,China;Shanghai KONG Intelligent Building Co.,Ltd.,Shanghai 201700,China)

机构地区：[1]广东美的暖通设备有限公司,广东佛山528311 [2]上海美控智慧建筑有限公司,上海201700

出　　处：《制冷技术》2023年第5期44-52,共9页Chinese Journal of Refrigeration Technology

摘　　要：为了优化高效机房项目低负荷制冷工况下的空调系统出现冷水主机频繁启停、系统能效低等问题,本文提出一种利用管网存水进行蓄冷的水蓄冷模式运行优化控制方法。本文通过工程项目实测数据对比分析了常规模式和水蓄冷模式下空调系统冷源设备的运行状态及运行能耗,结果表明水蓄冷模式优化控制方法能减少主机启停次数,启用该优化控制方法后机房日节能率为21.3%,机房能效提升率为26.4%。为了研究不同室外干湿球温度工况下启用水蓄冷模式的节能效果,本文还提出了水蓄冷模式节能量的预测计算方法,并进行了验证和应用,结果表明启用水蓄冷模式优化控制方法后,湿球温度越低,节能效果越好,在本文研究工况中最高日节能率为47%。In order to optimize the problems of frequent start and stop of chiller and low energy efficiency of the air conditioning system in the low-load refrigeration condition of the project of high efficiency refrigeration station,a water storage mode operation optimization control method using the water stored in the pipe network for cold storage control is proposed in this paper.Based on the measured data of project,this paper compares and analyzes the operating status and energy consumption of the cold source equipment of the air conditioning system under the conventional mode and the water storage mode.The results show that the water storage mode optimization control method can reduce the number of host start-stop times.After the optimization control method is used,the daily energy saving rate of the equipment room is 21.3%,and the energy efficiency of the equipment room is 26.4%.To study the energy-saving effect of water storage mode under different outdoor dry and wet bulb temperature conditions,the prediction and calculation method of energy saving of water storage mode was proposed in this paper,and was verified and applied.The results show that after the optimization control method of water storage mode is enabled,the lower the wet bulb temperature is,the better the energy-saving effect is.The highest daily energy saving rate in this paper study condition is 47%.

关 键 词：低负荷工况 水蓄冷 节能优化 能效提升 

分 类 号：TB611[一般工业技术—制冷工程] TQ051.5[化学工程]