基于设定用水模式的小型热水系统计算  

Calculation of Small Hot Water System Based on Setting Water Consumption Mode

作　　者：曾杰 ZENG Jie(GOA Group of Architects,Hangzhou 310063,China)

机构地区：[1]大象建筑设计有限公司,杭州310063

出　　处：《工程建设与设计》2023年第9期59-61,共3页Construction & Design for Engineering

摘　　要：对GB50015—2019《建筑给水排水设计标准》中的耗热量公式进行了探讨,因小型热水系统使用差异性比大中型热水系统大,指出了规范公式应用于小型热水系统时的问题。给出了小型热水系统的计算方式,对小型热水系统采用设定基于真实使用可能的最不利使用模式,在设定用水时间段内热水罐与热源的供热水量满足用水量且热水罐内水温始终需高于使用水温,对于若干典型小型热水系统使用场景计算进行了示例。This paper discusses the heat consumption formula in the GB 50015-2019 Standard for Design of Building Water Supply and Drainage,and points out the problems when the standard formula is applied to the small-scale hot water system because the use difference ofthe small-scale hot water system is greater than that of the large and medium-sized hot water system.The calculation method ofthe small-scale hot water system is given.The most unfavorable use mode based on real use is set for the small-scale hot water system.Within the set water use period,the heating water volume of the hot water tank and the heat source meets the water consumption,and the water temperature in the hot water tank must always be higher than the use water temperature.Examples are given for the calculation of several typical small-scale hot water systemuse scenarios.

关 键 词：小型热水系统 耗热量 空气源热泵 燃气壁挂炉 热水罐 

分 类 号：TU822.1[建筑科学]