▎ 摘　　要

NOVELTY - A circulating system for manufacturing graphene sheets comprises a nozzle, a bent pipe, two feed ports, and one discharge port, wherein the bent pipe is connected to the nozzle, and the feed ports are connected to the bent pipe, respectively, and further communicated with the nozzle; the discharge port is connected to the nozzle. In the circulating system, a liquid mixed with a highly-graphitized graphene is pressurized by a pressurization system to flow from the feed ports into the bent pipe, and changes flow direction in the bent pipe to flow into the nozzle, wherein the highly-graphitized graphene flows through the bent pipe to be dispersed into a plurality of graphene sheets, and the degree of graphitization of the highly-graphitized graphene is 0.8 to 1.0. Accordingly, the graphene sheets manufactured by the present invention have larger size and more perfect hexagonal planar structure.