热泵型空调额定制热室外换热器结霜原因分析及对策  

Analysis and Solution of Frosting in Rated Outdoor Heat Exchanger of Heat Pump Type Air Conditioner

作　　者：朱晋清 陈圣文 张继勇 

机构地区：[1]珠海格力电器股份有限公司,珠海519070

出　　处：《日用电器》2022年第7期35-38,共4页ELECTRICAL APPLIANCES

摘　　要：本文阐述热泵型空调室外机换热器结霜机理,从理论上分析额定制热工况换热器结霜常见原因。提出通过室外机换热器流路进出口温度判断制冷剂状态和结霜原因,并总结解决额定制热结霜的对策,为解决变频空气热泵空调在额定制热工况下结霜问题提供思路。This paper expounded the frosting mechanism of the heat exchanger of the outdoor unit of the heat pump air conditioner,and analyzed the common causes of the heat exchanger frosting under the rated heating condition.In this paper,the refrigerant state and the cause of frosting were judged by the inlet and outlet temperature of the flow path of the outdoor unit heat exchanger,and a method to solve the frosting of the rated heating was proposed.It provided ideas for solving the frosting problem of variable frequency air heat pump air conditioners under rated heating conditions.

关 键 词：热泵空调 额定制热 结霜 换热器 流路 

分 类 号：TM925.12[电气工程—电力电子与电力传动]