▎ 摘　　要

NOVELTY - The graphene spraying device has a graphene circuit that includes a graphene storage device (1), a pump portion (2), a filter (3), a proportional valve (4), and a peristaltic pump (5). A proportional valve has a liquid inlet, a liquid outlet, and a pressure control port that is provided for controlling the opening of liquid inlet of proportional valve and liquid outlet of the proportional valve. The air circuit includes a first precision pressure regulating valve (911). One end of the first branch pipe is connected to vent pipe between the first precision pressure regulating valve and a first primary pressure regulating valve (9). The other end of a first branch pipe (912) is connected to control interface of spray gun. One end of a second branch pipeline (92) is connected to vent pipe between the first precision pressure regulating valve and first primary pressure regulating valve. The other end of second branch pipeline is connected to pressure control port of proportional valve. USE - Graphene spraying device. ADVANTAGE - The agglomeration phenomenon caused by standing still is effectively reduced, since the graphene still maintains a flowing state when spraying is stopped. The graphene spraying device avoids the deterioration of the spraying quality caused by the agglomeration of graphene, and avoids the waste problem caused by the serious agglomeration of graphene and the need to discard it after being left for a long time. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the graphene spraying device. Graphene storage device (1) Pump portion (2) Filter (3) Proportional valve (4) Peristaltic pump (5) First primary pressure regulating valve (9) Second branch pipeline (92) First precision pressure regulating valve (911) First branch pipe (912)