▎ 摘　　要

NOVELTY - The utility model claims an aramid fibre winding composite pipeline for conveying hydrogen, an aramid fibre winding composite pipeline for conveying hydrogen, comprising a hydrogen blocking layer from inside to outside sequentially a core tube layer, an outer protective layer, wherein the hydrogen-blocking layer is graphene coating, the number of graphene is more than or equal to 2 layers, graphene is a good hydrogen-resistant material, it can prevent the gas phase hydrogen from entering the substrate, the composite pipeline hydrogen-blocking layer adopts graphene coating, the composite pipeline has hydrogen-resistant performance.