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Spoiler block and vortex-induced vibration suppression device

A vortex-induced vibration and flow block technology, which is applied in the directions of installation/support of wind turbine configuration, aerodynamic improvement, shock resistance, etc., can solve problems such as increased transportation risks, reduce transportation risks, and achieve good vortex-induced vibration suppression effects. The effect of reducing the transport volume

Active Publication Date: 2021-10-01
JIANGSU GOLDWIND SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of increasing transportation risks caused by the installation of spoiler blocks before the tower leaves the factory, one of the purposes of the present invention is to provide a spoiler block and a vortex-induced vibration suppression device

Method used

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  • Spoiler block and vortex-induced vibration suppression device
  • Spoiler block and vortex-induced vibration suppression device

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Embodiment Construction

[0034] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which the same reference numerals are used for the same components.

[0035] figure 1 is a schematic diagram showing an existing spoiler block installed on a tower section. like figure 1 As shown, the cross-section of the existing spoiler block 100 is usually triangular, and the cross-section of some spoiler blocks 100 is circular, and the cross-sectional area is usually 400-500mm 2, if the diameter of the tower section 400 exceeds 7m, the size of the spoiler 100 needs to be further increased in order to have the effect of suppressing the vortex-induced vibration. Please be aware of, figure 1 The helically wound spoiler block 100 in is actually formed by connecting a plurality of spoiler blocks.

[0036] figure 2 is a schematic diagram illustrating a spoiler block in an unused state according to an embodiment of the present invention. ima...

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Abstract

The invention provides a spoiler block and a vortex-induced vibration suppression device. The spoiler block comprises a deformation part and an air bag, wherein the deformation part comprises a windward side, and air holes are formed in the windward side; and the air bag is arranged in the deformation part and communicates with the air holes, so that airflow entering through the air holes can enter the air bag and enable the air bag to expand, and the deformation part is deformed from a flat first state to an expanded second state. Compared with a non-deformable spoiler block with the same size in the prior art, the spoiler block in the flat first state can remarkably reduce the transportation size of a tower frame, and the transportation risk and the collision risk in the transportation process are reduced; and the use state of the spoiler block can be changed through the magnitude of wind power.

Description

technical field [0001] The invention relates to the technical field of wind power generation, and more particularly, to a spoiler block and a vortex-induced vibration suppression device. Background technique [0002] With the continuous development of offshore wind power generation technology, the current new trend is to use tower structures such as large diameters and high towers to meet the development needs of offshore large-megawatt wind turbines. Vortex-induced vibration of the rack occurs frequently. From the perspective of fluid, any non-streamlined object will alternately generate vortices detaching from the surface of the structure on both sides of the object at a constant flow rate. Cyclic pulsating pressure. If the column is elastically supported at this time, or the flexible pipe body is allowed to undergo elastic deformation, then the pulsating fluid force will cause periodic vibration of the column body (the pipe body), and this regular column vibration will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E04H9/14F03D13/20
CPCE04B1/98E04H9/14F03D13/20Y02E10/728Y02T10/82
Inventor 方晶王杰
Owner JIANGSU GOLDWIND SCI & TECH CO LTD
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