空调蒸发器铜管腐蚀分析及预防  

Analysis of Copper Tube Corrosion of Air Conditioner Evaporator and Prevention

作　　者：郑小郴 韩顺训 张洋 

机构地区：[1]珠海格力电器股份有限公司,珠海519060 [2]格力电器(洛阳)有限公司,洛阳471000

出　　处：《日用电器》2021年第11期34-37,共4页ELECTRICAL APPLIANCES

摘　　要：铜管表面清洁未吸附水分,在开机运行后,铜管表面形成薄液膜。空气的灰尘、盐分及污染性体(SO_(2))等溶于薄液膜,使水pH降低,促进腐蚀。随着腐蚀产物积累,在铜管表面形成疏松的腐蚀产物层,由于毛细作用。疏松的腐蚀产物层极易吸收水分,延长铜管润湿时间,加强腐蚀作用。The surface of the copper tube is cleaned and does not adsorb the moisture,and after the start operation,the copper surface forms a thin liquid film.The dust,salting and contaminated body(SO_(2))of the air is dissolved in a thin liquid film,which reduces water pH to promote corrosion.As the corrosion product accumulates,a loose corrosion product layer is formed on the surface of the copper tube,due to capillary effects.The loose corrosion product layer is extremely easy to absorb moisture and extends the copper tube wetting time,strengthen corrosion.

关 键 词：空调器 铜管 点蚀 

分 类 号：TM925.12[电气工程—电力电子与电力传动]