Flexible vertical pipe bending reinforcer with rubber protective sleeve connector

Abstract

The invention provides a flexible vertical pipe bending reinforcer with a rubber protective sleeve connector. The flexible vertical pipe bending reinforcer with the rubber protective sleeve connectorcomprises a main body sleeve for wrapping the outer wall of a flexible vertical pipe and the rubber protective sleeve connector, the main body sleeve is of a three-section hollow structure, the middlesection of the main body sleeve is in a circular truncated cone shape, two ends of the main body sleeve are an A end with large section size and a B end with small section size, the end A of the mainbody sleeve is provided with an annular bottom surface, a plurality of first notches are distributed in the periphery of the annular bottom surface at intervals, end A through holes allowing screws to penetrate through conveniently are formed in the first notches, a concave table is arranged at the annular bottom of the end A and used for fixing the flexible vertical pipe, a plurality of second notches are distributed in the outer surface of the B end at intervals, B end through holes allowing screws to penetrate through conveniently are formed in the second notches, the rubber protective sleeve connector is of a hollow cylinder structure, corresponding protective sleeve notches are distributed in the positions, close to the end B, of the outer wall of the rubber protective sleeve connector according to the same interval and size as those of the second notches in the end B, and through holes in the protective sleeve notches correspond to the through holes in the second notches. According to the reinforcer, connecting part of the vertical pipe can be prevented from being bent and damaged.

Description

technical field [0001] The invention relates to a deep-sea flexible riser bending strengthener with a rubber protective cover, which belongs to the field of marine engineering flexible hose protection. Background technique [0002] The deep-sea flexible riser is a key part of the deep-sea oil and gas production system, and it is the bridge between the offshore platform and the subsea oil field. Due to the strong plasticity of the flexible riser configuration and its ability to adapt to harsh environmental loads, it is often used in deep sea oil and gas exploration. Its bending ability is strong, and it is easy to bend at the joint with the floating body or the connection with the pipeline and cause local damage. Therefore, it is necessary to install a bending intensifier at the local vulnerable position to avoid damage. The traditional bending stiffener has a slightly higher rigidity at the outlet of the pipe, which is easy to wear the outer surface of the riser, and the pi...

AI Technical Summary

Problems solved by technology

The traditional bending stiffener has a slightly higher rigidity at the outlet of the pipe, which is easy to wear the outer surface of the standpipe, and the pipe is also prone to stress concentration at this point, causing bending or extrusion, which reduces the fatigue life of the pipe

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