集中热水供应系统梯级贮热机理及耦合新能源应用研究  

Research and application of intelligent cascade heat storage mechanism for centralized domestic hot water and application of coupled new energy

作　　者：李伟 罗慧英 李宗颖 赵静 毕祺 王耀堂 LI Wei;LUO Huiying;LI Zongying;ZHAO Jing;BI Qi;WANG Yaotang(China Architecture Design&Research Group,Beijing 100044,China;Guangzhou Administrative Center of Major Public Construction Projects,Guangzhou 510006,China)

机构地区：[1]中国建筑设计研究院有限公司,北京100044 [2]广州市重点公共建设项目管理中心,广州510006

出　　处：《给水排水》2023年第10期121-126,共6页Water & Wastewater Engineering

基　　金：广州市重点公共建设项目管理中心科研课题(DEUZ22-007-106)。

摘　　要：热水随温度升高密度变小出现温度分层现象,常规贮热设备受高度限制无法利用温度分层.梯级贮热装置利用管道式贮热单元,有效加大热水温度梯度,热水输出率达到70%;集中热水供应系统可利用梯级贮热高温段热水来匹配热水用量,新能源设备回水连接贮热装置低温段,有效保证设备制热效率,提高系统综合制热性能系数COP,减少制热设备数量,实现了集中热水供应系统绿色、低碳、节能之目的,有效保证了热水系统的水质安全和舒适度.The temperature delamination phenomenon occurs when the density of hot water decreases with the increase of temperature,and conventional heat storage equipment is highly limited and cannot effectively use temperature delamination.Cascade heat storage using pipeline heat storage structure,effectively increase the hot water temperature gradient,compared with the traditional heat storage equipment,the hot water output rate reaches 70%.The hot water system realizes the priority use of cascade heat storage high-temperature section hot water to match the amount of hot water,and the new energy backwater is connected to the low temperature section of the heat storage device,which effectively ensures the energy efficiency of new energy equipment,improves the comprehensive heating performance coefficient COP of the system,realizes the green,low-carbon and energy-saving purposes of the hot water system,and effectively ensures the water quality safety and comfort of the hot water system.

关 键 词：集中热水供应系统 温度分层 管道式梯级贮热 梯级贮热机理 热水输出率 

分 类 号：TU992[建筑科学—市政工程]