The invention relates to a
hydrogen transport flexible pipeline and a
hydrogen leakage detection method, the
hydrogen transport flexible pipeline comprises a lining layer, an airtight layer, a
fiber reinforced layer and an outer protective layer, the lining layer, the airtight layer, the
fiber reinforced layer and the outer protective layer are all cylinder structures, the lining layer is made of a non-
metal thermoplastic resin material, and the outer protective layer is made of a non-
metal thermoplastic resin material. The airtight layer is composed of a
graphene / aluminum
oxide hydrogen-resistant
coating and a
metal aluminum layer, the
fiber-reinforced layer is made of a non-metal high-strength fiber
composite material, the outer protective layer is made of a non-metal
thermoplastic resin material, and the fiber-reinforced layer comprises a fiber-reinforced inner layer and a fiber-reinforced outer layer; an airtight layer is wound on the outer side of the lining layer, a fiber reinforced inner layer is wound on the outer side of the airtight layer in the forward direction, a fiber reinforced outer layer is wound on the outer side of the fiber reinforced inner layer in the reverse direction, and an outer
protection layer is arranged on the outer side of the fiber reinforced outer layer; a monitoring element is arranged in the outer
protection layer and used for monitoring the
hydrogen concentration change or the resistance change of the outer
protection layer in real time, and the hydrogen protection device can be widely applied to the technical field of
new energy development.