空气源热泵热水器用变管径复合齿形内螺纹管换热器的实验研究  

Experimental Investigation on Micro-Fin Tube Heat Exchanger with Different Diameters and Compound Tooth Profile in an Air-Source Heat Pump Water Heater

作　　者：吴治将[1] 徐言生[1] 喻继江 罗祥文 叶美冰 许志钦 姚东 WU Zhijiang;XU Yansheng;YU Jijiang;LUO Xiangwen;YE Meibing;YAO Dong;XU Zhiqin(School of Energy and Automotive Engineeringt Shunde PolytechnicFoshan 528333,China;Guangdong Hangji Metal Product Industries Co.,Ltd,Foshan 528305 China;Guangzhou Customs Technical Center,Guangzhou 510610,China)

机构地区：[1]顺德职业技术学院能源与汽车工程学院,广东佛山528333 [2]广东恒基金属制品实业有限公司,广东佛山528305 [3]广州海关技术中心,广东广州510610

出　　处：《制冷》2021年第4期43-48,共6页Refrigeration

基　　金：2019年度容桂科技计划项目:多维协同强化冷凝换热技术研究及应用(2019013);2019年海关总署科研项目:热泵干燥国际技术壁垒及其技术评价体系的研究(2019HK084);2018年广东省普通高校特色创新项目:空气源热泵热水器优化节能关键技术研究及应用(2018GKTSCX052)。

摘　　要：根据制冷剂在室外侧换热器的干度变化特性,提出一种变管径复合齿形内螺纹管新型换热器,搭建应用于空气源热泵热水器的实验台,并对其性能进行测试。结果表明:在相同的工况下,对比传统的单一内螺纹齿形管换热器1,采用变管径复合齿形内螺纹管的新型换热器可明显提升热泵热水器的整体性能,采用换热器3的机组整体性能最佳,对应的制热量为13.31 kW,COP为3.9,制热量提高了7.95%,COP提高了9.24%,加热时间缩短了6分钟。According to the variation characteristics of refrigerant dryness,a new type of micro-fin tube heat exchanger based on different diameters and compound tooth profile was presented,which is used in the experimental platform of air source heat pump water heater,and its performance was tested.The experimental results indicate that under the same working condition,compared with the traditional heat exchanger 1 used micro-fin tubes with single geometries,the new type of heat exchanger can significantly improve the overall performance of the heat pump water heater.Moreover,the overall performance of the unit with heat exchanger 3 is the best,the heating capacity is 13.31 kW,COP is 3.96,the heating capacity is increased by 7.95%,COP is increased by 10.92%,and the heating time is shortened by 6 minutes.

关 键 词：变管径 复合齿形 热泵热水器 内螺纹管 性能 

分 类 号：TB657.5[一般工业技术—制冷工程]