Submarine pipeline buckle arrestor with spiral eye plates and fixation method for submarine pipeline buckle arrestor

Abstract

The invention belongs to the technical field in the process of laying submarine pipeline facilitates, and relates to a submarine pipeline buckle arrestor with spiral eye plates, which is used for protecting submarine pipelines. The submarine pipeline buckle arrestor comprises two shells with eye plates which are extended outwards, wherein the two shells have the same size and structure; each eye plate is a spiral side wing eye plate; grooves or strakes which have the same spiral angle as the eye plates are arranged on the two shells; and after the two shells are connected to form an annular cylinder, the spiral side wing eye plates, the grooves or the strakes on the two shells are coincided with each other respectively to form a spiral structure with the same angle. The submarine pipeline buckle arrestor has a simple structure and is easy to process and mount; the failure of the buckle arrestor caused by damages to bolts can be effectively prevented while the cost is reduced; and the buckle propagation of the submarine pipelines can be controlled, and the vortex induced vibration of the pipelines can be prevented.

Description

Technical field [0001] The invention belongs to the technical field in the process of laying submarine pipeline facilities, and specifically relates to a device that can effectively prevent the propagation of submarine pipeline buckling and suppress pipeline vortex-induced vibration. Background technique [0002] Submarine pipelines are an important means of offshore oil and gas production and transportation. Due to the complex deep-water marine environment, submarine pipelines are subject to huge hydrostatic pressure. In addition, factors such as unreasonable operation during the pipe laying process, impact of heavy objects such as anchors, temperature difference between deep water and low temperature environment and the hot oil transported in the pipe, and possible local corrosion of the transported liquid to the pipeline may cause the submarine pipeline to be damaged. Local buckling collapsed. After the local buckling and collapse of the pipeline occurs, under a certain exte...

AI Technical Summary

Problems solved by technology

Invention patent CN200910309743.6 (Submarine pipeline buckle arrester with helical side plate and its fixing method) provides the submarine pipeline buckle arrester, which prevents and controls buckling propagation and vortex-induced vibration through the helical side plate, but this buckle arrester It cannot effectively prevent bolts from collapsing, breaking and other accidents, and the processing technology of this kind of buckle arrester is relatively complicated

Images