对微通道换热器进行了亲水表面处理,并对其性能进行了实验研究,分析了亲水处理对微通道换热器湿工况性能的影响。实验表明,亲水处理对换热器性能有利:与无涂层换热器相比,亲水处理换热器换热量最多增大7.0%,压降减小0.7%～18.9%。而随着翅片间距的减小和芯体厚度的增加,亲水处理带来的性能提升减弱。 The microchannel heat exchanger was treated by hydrophilic surface treatment. The performance of the microchannel heat exchanger was studied experimentally. The effect of hydrophilic treatment on the performance of microchannel heat exchanger was analyzed. Experiments show that the hydrophilicity of the heat exchanger performance is favorable: Compared with the uncoated heat exchanger, heat exchange heat exchanger heat up up 7.0%, pressure drop reduced by 0.7% to 18.9%. With the reduction of the fin spacing and the increase of the core thickness, the performance improvement caused by the hydrophilic treatment is weakened.