Multilayer pipeline in a polymer material, device for manufacture of the multilayer pipeline and a method for manufacturing the multilayer pipeline

摘要

The invention relates to a multilayer pipeline for transporting petroleum products, in particular for oil and gas, and for transporting CO2 gas. Plastic composite pipes and pipes that include a metal are presently known and are restricted by length, rigidity and pressuration at least. The present invention seeks to ameliorate such disadvantages. More particularly, the invention relates to an endless multilayer pipeline (1) which includes at least: - an inner fluid-tight ply (11) which is formed of a first thermoplastic polymer material; an inner fibre-reinforced thermoplastic polymer ply (14) which includes a wrapped fibre-reinforcement and which surrounds the inner fluid-tight ply; a first intermediate ply (13) which is formed of a second thermoplastic polymer material; an outer fibre-reinforced thermoplastic polymer ply (12) which includes a wrapped fibre reinforcement, wherein at least one of the inner fibre-reinforced thermoplastic polymer ply (14) and the outer fibre-reinforced thermoplastic polymer ply (12) includes at least one fibre-containing layer (14a-b, 14c-d; 12a-b, 12c-d) and one reinforcement-free layer (14c, 14f; 12c, 12f), wherein the wrapped fibre-reinforcement includes at least one fibre tape (4), and the first intermediate ply (13) is provided with at least one first channel oriented axially. A machine assembly (30) for producing the multilayer pipeline (1) and a method of producing the multilayer pipeline (1) are described as well.