Ultrahigh-pressure pipeline structure and production method

The invention discloses an ultrahigh-pressure pipeline structure and a production method, and belongs to the technical field of ultrahigh-pressure pipelines. The ultrahigh-pressure pipeline structure comprises a conventional pipeline body, and flange connectors are welded to the two ends of the pipeline body; the flange joint comprises a convex part; one end provided with the lug boss is an end a, and the other end is an end b; the outer diameter of the end a of the protruding part is equal to the outer diameter of the pipeline body. A contraction part; the end b is integrally arranged at the convex part; the outer diameter of the contraction part is smaller than that of the b end of the convex part; a flange plate; the elastic part is integrally arranged at one end of the contraction part away from the lug boss; the outer wall of the pipeline body, the outer walls of the protruding parts and the outer walls of the contraction parts are all tightly wound with multiple layers of carbon fiber filaments which ar