Dual-floating-body four-stand-column semi-semi-submersible fan foundation

Abstract

The invention discloses a dual-floating-body four-stand-column semi-semi-submersible fan foundation which comprises two long-strip-shaped floating bodies. Four stand columns are vertically arranged onthe floating bodies in two rows, one ends of at least four braced chain lines are correspondingly connected to the four stand columns, the other ends of the braced chain lines are connected to a seabed respectively, the four stand columns are connected with a platform separately, the platform is of a cylindrical structure and is arranged at the top end, a buoyancy tank and a ballast tank are symmetrically arranged below the platform, heaving plates are arranged among the buoyancy tank, the ballast tank and the platform in parallel at intervals, circular installing through holes are formed inthe heaving plates, the stand columns support the ballast tank, the platform and the buoyancy tank through the heaving plates respectively, one ends of tension lines are connected with the bottom ballast tank, and the other ends extend in the direction parallel to a gravity line to be connected to a seabed. The structural stability of the foundation is improved, and the foundation is simple and practical, and is not likely to be damaged.

Description

technical field [0001] The invention relates to a semi-submersible fan foundation. Background technique [0002] With the rapid development of the global industrialization process, human demand for energy is also increasing. Using inexhaustible wind resources to generate electricity instead of traditional coal-fired electricity generation has very significant energy-saving and environmental protection benefits. Moreover, wind energy has the advantages of non-pollution and renewable. Compared with coal-fired power generation, it can reduce a large amount of harmful gas and smoke emissions, which has very far-reaching significance for solving the current energy shortage, environmental pollution and other problems. [0003] According to different foundation types, offshore wind turbines can be roughly divided into two categories: fixed-pile offshore wind turbines and floating offshore wind turbines. There are mainly four types of floating wind turbine foundations, mainly: sin...

AI Technical Summary

Problems solved by technology

The central position of the system is too high, the stability is difficult to guarantee, the fan generates a large thrust and overturning moment, and a large overturning movement occurs.

[0005] In addition, the waterline area of ​​the semi-submersible foundation is small, and it is often in the head-wave state during work, and compared with movements in other directions, its flexibility in heaving effects is very small. Conventional mooring systems only use tension The tight type or catenary type is the main type, and the stiffness of the foundation in the direction of rotation and movement cannot be guaranteed at the same time

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