▎ 摘　　要

NOVELTY - The sleeve has inner layer material, outer layer material and several intermediate layer materials. The inner layer material, the intermediate layer material, and the outer layer material are arranged in sequence. The intermediate layer material includes a first intermediate layer, a second intermediate layer, and a third intermediate layer. The first intermediate layer, the second intermediate layer, and the third intermediate layer are sequentially arranged from the outer layer material to the inner layer material. The inner layer material is a flame-retardant material, and the outer layer material is a waterproof and flame-retardant material. The first intermediate layer is made of thermal insulation material, and the second intermediate layer is made of unidirectional reflective material. The second intermediate layer reflects toward the position of the inner layer material. The third intermediate layer uses graphene heating material. USE - Graphene intelligent temperature control heating insulation sleeve used in field of heat preservation device. ADVANTAGE - The sleeve has fast temperature rise and uniform heating after power-ON. The heat preservation layer can maintain a stable temperature, and the heat preservation coefficient is high. The graphene intelligent temperature control heating heat preservation sleeve meets the temperature requirement of the medium and saves the cost. DESCRIPTION OF DRAWING(S) - The drawing shows the schematic diagram of the graphene intelligent temperature control heating insulation sleeve. (Drawing includes non-English language text)