Ice-breaking and wave-eliminating composite device for offshore wind power pile-type foundation

Abstract

The invention provides an ice-breaking and wave-eliminating composite device for an offshore wind power pile-type foundation. The ice-breaking and wave-eliminating composite device is installed on a vertical steel pipe pile, and an upper annular plate and a lower annular plate are arranged on the outer wall of the steel pipe pile in the circumferential direction. The ice-breaking and wave-eliminating composite device comprises an ice-breaking cone, a plurality of ice-breaking blades and a sleeve, the ice-breaking cone is in an annular shape, a plurality of wave-eliminating holes are formed inthe ice-breaking blades , all the ice-breaking blades are vertically fixed to the ice-breaking cone at intervals, the ice-breaking cone sleeves the outer wall of the sleeve, the sleeve sleeves the outer side of the steel pipe pile, and is located between the upper annular plate and the lower annular plate and slidably connected with the steel pipe pile; a plurality of first telescopic springs arearranged at the top of the sleeve in the circumferential direction, and a plurality of second telescopic springs are arranged at the bottom of the sleeve in the circumferential direction. The ice-breaking and wave-eliminating composite device has the beneficial effects that the structure is simple, the cone volume is small, the vertical height is less than the difference between the average high tide level and the average low tide level in the sea area where the device is located, the self-adaption change with the tide level can be achieved, and the ice load during the ice period and the waveload during the ice-free period are effectively reduced.

Description

technical field [0001] The invention relates to the technical field of offshore wind power engineering, in particular to an ice-breaking and wave-eliminating combined device for offshore wind power pile foundations. Background technique [0002] my country's Bohai Sea and the northern part of the Yellow Sea have a high density of wind energy reserves, such as Qinhuangdao, Caofeidian and Penglai and a series of areas around the Bohai Sea. However, in winter in the Bohai Sea and the northern Yellow Sea, the huge wind energy reserve is accompanied by the threat of large-scale sea ice. [0003] Due to the complex and changeable marine environment in the Bohai Sea and the northern part of the Yellow Sea, the offshore wind power foundation will be subject to various loads, and ice loads and wave loads have become important control loads for marine structures at the same time. At present, the ice-breaking design of offshore wind power foundations in my country mainly draws on the ...

AI Technical Summary

Problems solved by technology

However, in the ice-free period, due to the existence of ice cones, the water surface area of ​​the foundation is enlarged, and the wave load increases sharply, which also threatens the safety of offshore wind power pile foundations.

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