摘要
阐述了空气源热泵热水器的结霜特性,分析了热泵热水器化霜时与空调器不同的特征,提出了采用检测冷凝器温度与水温的差值来判断室外蒸发器是否结霜、检测室外热交换器盘管温度来判断除霜是否完成的两器盘管温度综合判断除霜法。
The frosting performance of air-source heat pump water heater is expounded.The defrost characteristic of heat pump water heater is analyzed,which is differentfrom air conditioner.A new defrost method based on comprehensive evaluation according to the temperature of the evaporator and condenser is proposed.This method judge whether the outdoor evaporator was frosted by the temperature difference between the condenser and water,and judge whether the outdoor evaporator was defrosted by its coil temperature.
出处
《制冷》
2009年第3期40-42,共3页
Refrigeration
基金
浙江省教育厅科研基金资助项目(20061500)
关键词
热泵热水器
结霜
除霜方法
Heat pump water heater
Frosting
Defrost method
