▎ 摘　　要

NOVELTY - The unit has a tube body whose top end is connected with a tube cover. An outer surface of the tube body is provided with an anti-oxidation layer. An outer surface of the tube cover is fixed with an anti-oxidation layer. An interior part of the tube body is provided with an insulating pipe that is provided with an insulating filler. An inner side of the insulating pipe is provided with a graphene film frame pipe. A top end of the graphene film frame pipe is electrically connected with a graphene film electrode through a lead. An outer surface of the graphene film electrode is fixedly connected with a conductive wire. USE - Graphene water circulation heating unit. ADVANTAGE - The unit is environment-friendly, and ensures better heat energy utilizing effect and energy-saving effect. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of a graphene water circulation heating unit.