【作者】 许文明； 王飞； 黄东； 赵日晶； 代传民； 张心怡； 李阳； 蒋骏；

【Author】 Xu Wenming;Wang Fei;Huang Dong;Zhao Rijing;Dai Chanmin;Zhang Xinyi;Li Yang;JiangJun;Qingdao Haier Air Conditioner Gen.Corp.;State Key Laboratory of Digital Household Appliances;Xi′an Jiaotong University;

【机构】 青岛海尔空调器有限总公司； 数字化家电国家重点实验室； 西安交通大学能源与动力工程学院；

【摘要】 热气旁通除霜技术存在除霜热量不足的问题,导致微融吹霜对于缩短除霜时间的潜力并未完全发挥。本文考虑将热气旁通改为电(磁)加热补偿的方式用于除霜过程,即除霜期间空调系统并不切换,室外机依旧做蒸发器、室内机做冷凝器,而在电子膨胀阀出口、室外机入口处增加电热元件,结合压缩机、内外风机、电子膨胀阀的控制将节流后、室外机入口前的制冷剂加热为2℃～3℃,从而主要利用制冷剂热量将室外机表面霜层除尽,起到延霜和微融化霜的目的,从而提升空调制热运行的舒适性。更多还原

【Abstract】 The problem of insufficient defrosting heat still exists in the hot gas bypass defrosting,which leads to the fact that the potential of blowing when slight melting frost for shortening the defrosting time has not been fully realized.In this paper,it is considered to change the hot gas bypass to the electric(magnetic)heating compensation for the defrosting process,that is,the air conditioning system is not switched during defrosting,the outdoor unit is still used as the evaporator and the indoor unit is used as the condenser,while the electric heating elements are added at the outlet of the electronic expansion valve and the inlet of the outdoor unit,and the refrigerant after throttling and in front of the inlet of the outdoor unit is heated to about 2～3℃ in combination with the control of the compressor,internal and external fans and the electronic expansion valve. Thus,using the refrigerant heat mainly to remove the frost layer on the surface of the outdoor unit totally,to prolong the frost cycle and slightly melt the frost,so as to improve the comfort by the heating operation of the air conditioner.更多还原