▎ 摘　　要

NOVELTY - The invention relates to the technical field of heat exchanger, claims an evaporator, comprising: a plurality of fins; a cooling medium tube; and an organic coating coated on the outer surface of the fin and the cooling medium tube. wherein the plurality of fins are arranged side by side; the cooling medium pipe is penetrated in the multiple fins; the organic coating is coated on the outer surface of the plurality of fins and the cooling medium tube, comprising a coating substrate and graphene dispersed in the coating substrate. The outer surface of the fin and the cooling medium pipe of the evaporator provided by the embodiment of the invention is coated with an organic coating, which not only has the anti-corrosion effect, and the graphene in the organic coating has high heat conductivity, fast heat conduction, good uniform temperature, improving the heat exchange effect of the evaporator. The invention further claims a refrigeration device.