Embracing and clamping mechanism of deepwater stand pipe buoyancy device

Abstract

The invention provides an embracing and clamping mechanism of a deepwater stand pipe buoyancy device. The embracing and clamping mechanism comprises a clamp frame, a rear movable clamp, a front movable upper clamp, a front movable lower clamp, a front movable lower clamp right locking mechanism, a front movable lower clamp left locking mechanism, a rear movable clamp locking mechanism and a front movable upper clamp locking mechanism. The embracing and clamping mechanism is connected to the stand pipe buoyancy device through a U-shaped load guide way on the clamp frame; and embracing and clamping mechanism fixing boards are fixed to the stand pipe buoyancy device through bolts, so that the embracing and clamping mechanism is prevented from falling off. A stand pipe stress ring is embraced through a clamp frame stand pipe stress surface, a rear movable clamp stand pipe stress surface, a front movable upper clamp stand pipe stress surface and a front movable lower clamp stand pipe stress surface, stand pipes and the stand pipe buoyancy device of a tension leg platform (TLP) are connected, all the movable clamps are locked through the locking mechanisms, and connection reliability is guaranteed. The embracing and clamping mechanism of the deepwater stand pipe buoyancy device has the advantages of being simple in structure, convenient to operate, high in bearing capacity, reliable in connection, low in manufacturing cost and the like.

Description

technical field [0001] The invention relates to a clamping mechanism for a buoyancy device of a deep-water riser, which belongs to the field of offshore platform construction. Background technique [0002] With the development of economy and technology, human's demand for resources continues to increase. Due to the abundance of marine resources, the development of marine resources has become an important development direction, and marine oil and gas development is one of the main contents of today's marine development projects. Therefore, offshore oil platforms have become the main equipment in today's offshore oil and gas development equipment. [0003] In the 1980s, people found that the tension leg platform has simple structure, compliance, low engineering cost, good stability and safety, so it is very popular among people. Many countries began to study and design the tension leg platform, so Has developed rapidly. The reason why the tension leg platform can attract att...

AI Technical Summary

Problems solved by technology

[0004] In order to meet the needs of deep-water operations in the ocean, my country is increasing research on deep-water platforms, but currently there are no tension-leg platforms among the platforms independently developed in China, and no riser buoyancy devices have been developed.

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