双水箱热泵热水系统的构建及性能

doi:10.11949/j.issn.0438-1157.20161494

化工学报 ›› 2016, Vol. 67 ›› Issue (S2): 333-339.DOI: 10.11949/j.issn.0438-1157.20161494

双水箱热泵热水系统的构建及性能

鹿琳, 梁彩华, 张小松

东南大学能源与环境学院, 江苏南京 210096

收稿日期:2016-10-23 修回日期:2016-11-02 出版日期:2016-12-30 发布日期:2016-12-30
通讯作者: 梁彩华
基金资助:
“十二五”国家科技支撑计划资助项目（2011BAJ03B14）。

Construction and performance research on double-tank heat pump water heating system

LU Lin, LIANG Caihua, ZHANG Xiaosong

College of Environment and Energy, Southeast University, Nanjing 210096, Jiangsu, China

Received:2016-10-23 Revised:2016-11-02 Online:2016-12-30 Published:2016-12-30
Supported by:
supported by the 12th Five Year Science and Technology Support Key Project of China(2011BAJ03B14).

摘要/Abstract

摘要：

储水型单水箱热泵热水系统在使用过程中存在自来水补水与水箱原有热水混合并由此导致水箱热水温度下降、热泵循环加热水温起点高，机组平均加热效率难以提高的问题。为此，提出了一种双水箱（加热水箱和储水水箱）热泵热水系统，冷水补水首先进入加热水箱，在其中被热泵机组加热到设定温度后，再送至储水水箱以供给用户侧，从而避免冷热水混合造成机组效率较低的问题。深入分析了双水箱热泵热水系统的系统构成和工作原理，并将其应用于某大学学生宿舍空气源热泵热水系统，同时对双水箱热泵热水系统开展性能实验研究。结果表明，与单水箱热泵热水系统相比，补水水温越低，目标加热水温越高，双水箱热泵热水系统节能效果越显著，当加热水箱初始加热水温与目标加热水温分别为14℃和55℃时，双水箱空气源热泵热水系统的效率比单水箱空气源热泵热水系统提高19.31%以上。

关键词: 热泵系统, 双水箱, 水热, 优化, 优化设计, COP

Abstract:

The mixing heating process of supplement water and original hot water in heat pump water heating system with single water storage tank results in the descend of water temperature in the tank,the high circulating heating temperature and the low efficiency of heat pump units.For this reason,the heat pump water heating system of double tanks(heating water-tank and heat storage tank) is introduced.The cold supplement water is heated to the setting temperature in the heating water-tank.Then it is sent to the heat storage tank by the recycling pump to supply users.It analyzes the system configuration and working principle of heat pump water system with double tanks.It is used in an air-source heat pumps heating water system of a university.The experimental study of this system results showed that the lower supplement water temperature and higher setting heating water temperature results in better energy saving effect compared with the heating pump system of single water tank.When the initial heating temperature and setting heating temperature is 14℃ and 55℃,the efficiency of double tanks system is increased by at least 19.31% than that of single tank system.

Key words: heat pump system, double tanks, hydrothermal, optimization, optimal design, COP

中图分类号:

鹿琳, 梁彩华, 张小松. 双水箱热泵热水系统的构建及性能[J]. 化工学报, 2016, 67(S2): 333-339.

LU Lin, LIANG Caihua, ZHANG Xiaosong. Construction and performance research on double-tank heat pump water heating system[J]. CIESC Journal, 2016, 67(S2): 333-339.

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双水箱热泵热水系统的构建及性能

Construction and performance research on double-tank heat pump water heating system

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