▎ 摘　　要

NOVELTY - Solar energy generation heat storage device inner wall spraying involves removing stain from heat storage inner wall, washing with water, drying, spraying a pretreatment agent to the inner surface of heat storage device to form a protective film of thickness 1-5 mm, drying, and spraying a graphene nano thin film of thickness 0.1-0.5 mu m on the surface of protective film. USE - Solar energy generation heat storage device inner wall spraying (claimed). ADVANTAGE - The method is simple, forms graphene nano thin film with excellent adhesiveness, and improves product durability.