Corrosion-resistant large-diameter austenitic steel pipe for deep-sea platform

Abstract

The application discloses a corrosion-resistant large-diameter austenitic steel pipe for a deep-sea platform, which comprises a set of steel pipe bodies welded together, an outer reinforcing assembly arranged on the outside of the set of steel pipe bodies, and an inner reinforcing assembly arranged on the inside of the set of steel pipe bodies, wherein the inner reinforcing assembly comprises reinforcing pipes fixedly connected to the inner walls of the steel pipe bodies, and the close ends of the reinforcing pipes are jointly inserted with a fastening cylinder, and the upper surface and the bottom surface of the fastening cylinder are both provided with a set of annularly arranged positioning holes. The outer reinforcing assembly and the inner reinforcing assembly are matched, the inner reinforcing assembly can reinforce the connection between the steel pipe bodies, the outer reinforcing assembly can reinforce the steel pipe bodies, the transverse vibration between the steel pipe bodies is effectively prevented, the fatigue damage of the welded joint is further reduced, the sealing effect is ensured, and the safety accidents caused by the medium leakage under the high pressure of the deep sea can be avoided.

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