▎ 摘　　要

NOVELTY - The utility model claims a high COD waste water evaporator, comprising a heating chamber connected in turn; a condensing chamber and a collecting tank; the heating chamber is provided with several heating tubes and a thermocouple for heating; one end of the heating tube is connected with the sewage pump for inputting sewage; the other end of the heating tube is connected to the condensing tube in the condensing chamber; the middle of the condensing tube is connected with a radiating assembly; the radiating component comprises a sleeve whose two ends are connected with the condensing pipe; the outer side of the sleeve is fixedly connected with not less than four radiating fins distributed in emitting shape; the surface of the radiating fin is coated with graphene radiating layer; the collecting tank is connected with the condensing pipe. The advantages of the utility model are as follows: the sleeve radiating under the action of the radiating fin, keeping low temperature; the radiating fin is sheet distributed in multiple emitting shape, which is good for increasing the radiating area of the radiating fin; the graphene radiating layer on the surface of the radiating fin can further improve the radiating speed of the radiating fin.