An arc type ice-resistant wind power foundation

A wind power-based, arc-shaped technology, which is applied in wind power generation, wind turbines, and the configuration of installing/supporting wind turbines, etc., can solve problems that are not conducive to the safe operation of wind turbines in non-glacial periods, threaten the safety of wind turbine structures, and increase the wave load of wind turbines. and other problems, to achieve the effect of improving fatigue life, reducing retention and accumulation, and reducing ice load

CN110778459BActive Publication Date: 2020-11-10TIANJIN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-11-10

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Abstract

The invention relates to an arc type anti-icing wind power foundation. The foundation comprises an upper foundation with a small transverse dimension, a middle foundation and a lower foundation with alarge transverse dimension, the shape of the whole middle foundation is an inverted cone shape or a horn shape with a smaller upper part and a larger lower part, the middle foundation comprises an arc type main pile leg, the arc type main pile leg is in an arc shape, the cross section of the arc type main pile leg is shuttle-shaped, the shuttle-shaped cross section is divided into a long axis anda short axis, when an ice sheet acts on the arc type pile leg in parallel to the cross-section short-axis direction, the ice sheet is forced to generate a bending failure mode, and when the ice sheetacts on the arc type pile leg in parallel to the cross-section long-axis direction, a tip forms an anti-icing mode of cutting the ice sheet by an ice breaking blade.
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Description

technical field

[0001] The invention relates to an arc-shaped wind power infrastructure, especially applied to sea areas in cold regions where ice resistance performance is required. Background technique

[0002] With the depletion of oil resources and human desire for clean energy, offshore wind power technology has gradually gained the favor of various countries. The sea area in the cold area has attracted much attention because of its high wind energy density and abundant wind resources. However, offshore wind power foundations installed in cold regions inevitably encounter sea ice loads.

[0003] Offshore wind power foundations mainly reduce the effect of ice loads by adding anti-ice cones. The principle is to transform the ice load and the crushing failure mode of upright piles into a bending failure mode through the slope of the ice cones. The compressive strength, therefore, the bending mode ice force is much smaller than the squeezing ice force.

[0004] At presen...

Examples

Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] Such as figure 1 with figure 2 As shown, the present invention mainly includes a cylindrical main pile leg 1; a horizontal outer support 2; a transition joint 3; three arc-shaped main pile legs 4; reinforcing ribs 5; Plate 7; horizontal inner support 8; hub type reinforcement plate 9.

[0018] Such as figure 1 As shown, the upper part of the cylindrical main leg 1 of the present invention is connected to the transition section of the fan to support the upper structure of the fan tower, the nacelle, and the blade; the cylindrical main leg 1 is connected to the arc-shaped main leg 4 through the transition joint 3 connected; the arc-shaped main legs 4 cover the entire tidal range position, that is, the main legs between the upper horizontal layer EL+A and the lower horizontal layer EL-B are arc-shaped, and the arc-shaped main legs In the tidal ...