Offshore wind power spar buoyant foundation capable of towing

Abstract

The invention relates to an offshore wind power buoyant foundation form and in particular relates to an offshore wind power spar buoyant foundation capable of towing, which comprises a connecting column and is characterized in that the upper end of the connecting column is connected with a fan through a flange ring, a plurality of flat columnar closed air flotation boxes are arranged at the middle part of the connecting column, the closed air flotation boxes are not communicated with the connecting column, and the bottom of the connecting column is communicated with a loading cabin; a column body of the connecting column is provided with a detachable gear required for towing; and a mooring rope is arranged at the center of gravity of the buoyant foundation. Compared with the prior art, the offshore wind power spar buoyant foundation provided by the invention has the beneficial effects that the construction is convenient, rolling towage can be realized, the resistance of a wave flow is reduced, the stress concentration and fatigue damage caused by the traditional spar foundation in a wet towing process are avoided, the construction difficulty and construction cost are greatly reduced, and the offshore wind power spar buoyant foundation can be recycled. The additional mass and viscous damping of heave motion are effectively improved by virtue of the flat air flotation boxes, the water surface profile area of a buoy is effectively increased by virtue of the flat air flotation boxes on the water surface, a relatively large restoring moment is provided, the structure stability is relatively good, the center of gravity is lower than the center of flotation, and the resistance to capsizing is good.

Description

technical field [0001] The invention relates to an offshore wind power floating foundation form, which is a towable offshore wind power spar floating foundation, which is convenient for construction, recyclable, and more economical and stable. Background technique [0002] my country has abundant offshore wind power energy. The sea area with water depth greater than 50m has stable wind speed and small wind shear, which has the unique advantages of wind power generation. It is the consensus of the industry to extend offshore wind farms to deep sea areas. According to the experience in the development of marine resources such as offshore oil, the floating foundation is an ideal solution for the foundation of wind turbines in large offshore wind farms in deep water. [0003] Among the current floating wind power foundations, the Spar structure foundation has very prominent advantages. [0004] The floating foundation of the spar structure has a large draft and small vertical ...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to propose a towable offshore wind power SPAR floating foundation for the problems of complicated installation and transportation process, high installation cost, small foundation water surface line and large roll and pitch values. Floating foundation, the structure can be towed and transported, the construction is convenient, and the surface area of ​​the floating body is increased, which effectively improves safety and economy

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