▎ 摘　　要

NOVELTY - The method involves comprising a graphene modified layer (301), the surface of the graphene modified layer is covered with a wear-resistant layer (302). An anti-oxidation layer (303) is constructed in the inner cavity of the graphene modified layer. The polishing motor is started to drive the polishing wheel to rotate to polish one end of the graphene modified layer. The lifting threaded rod is rotated to drive the motor frame to move up and down on the surface of the frame. The exhaust fan conveys the wind into the blowing bucket through the air outlet hose, after the polished graphene modified layer is removed from the polishing roller, and blows it out to the surface of the pipe placement rack through the blowing port. The graphene modified layer is blowed to blow away the debris inside. The rotating motor is started to drive the transmission rack to move left and right. The pipe placement rack is operaed by the gear to slide left and right on the top of the rail rack to blow air. USE - Method for preparing graphene-modified high-efficiency thermal conductivity ground source heat pump pipe fitting (claimed). ADVANTAGE - In the method, the fitting can quickly collect the debris, and prevents powder from overflowing into the air to be sucked by the worker. The fitting is convenient to clean and has high safety coefficient. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the graphene-modified high-efficiency thermal conductivity ground source heat pump pipe fitting. Graphene modified layer (301) Gear-resistant layer (302) Anti-oxidation layer (303)