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Large-scale wind power blade with multi-beam structure and manufacturing method thereof

A large-scale technology for wind power blades, applied in wind power generation, wind engines at right angles to the wind direction, wind engines in line with the wind direction, etc., can solve the problems of structural safety and high cost, achieve strength safety, reduce blade quality, Effect of increasing ply thickness

Active Publication Date: 2018-06-05
ZHUZHOU TIMES NEW MATERIALS TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a method that can effectively reduce the weight of the blade in view of the structural safety and high cost of the existing large-size and elongated blades, so as to increase the frequency of the blade and reduce the load on the blade. Large-size, elongated wind power blade capable of reducing production cost and manufacturing method thereof

Method used

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  • Large-scale wind power blade with multi-beam structure and manufacturing method thereof
  • Large-scale wind power blade with multi-beam structure and manufacturing method thereof
  • Large-scale wind power blade with multi-beam structure and manufacturing method thereof

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments of the specification.

[0031] figure 1 It is a schematic cross-sectional view of the structure of the blade shell in this embodiment, figure 2 , image 3 It is a schematic diagram of the distribution of the blade shell structure along the span direction.

[0032] It can be seen from the accompanying drawings that the present invention provides a large-size wind power blade with multi-beam structure, which adopts a hollow layout structure, including blade skin suction side (11), blade skin pressure side (12), main load-bearing structure girder (1, 2, 4, 5), shear web (7, 8), trailing edge load-bearing structural trabecular (3, 6). The main load-bearing structure girders (1, 2, 4, 5) are divided into four blade structure girders. The width of the blade structure girders in this implementation is 0.31m, and the total length of the girders is 52.51m. °Th...

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Abstract

A large-scale wind power blade with a multi-beam structure and a manufacturing method thereof, adopting a hollow layout structure, including a blade skin suction side, a blade skin pressure side, a main load-bearing structure girder, and a shear web, and the blade skin suction side and the blade skin pressure side The pressure side of the blade skin is combined to form a cavity structure with a streamlined cross-section. In the cavity structure formed by the combination of the suction side of the blade skin and the pressure side of the blade skin, a combination of the main load-bearing structural girder and the shear web is arranged. The supporting structure of the blade skin; the blade skin suction side and the blade skin pressure side both adopt a multi-section composite structure, and the blade skin suction side and the blade skin pressure side are formed by connecting multiple sections with the side of the main load-bearing structure girder. overall. On the premise of ensuring the stiffness and strength of the blade, the invention improves the buckling and instability resistance of the blade structure, and can obviously reduce the weight of the blade and reduce the load of the blade, especially the fatigue load, by adopting the high modulus carbon fiber layer.

Description

technical field [0001] The present invention relates to a component of wind power generation equipment and an improvement of its manufacturing method, in particular to a manufacturing method of a large-sized and elongated wind power blade and the improvement of the wind power blade. It belongs to the technical field of wind power equipment. Background technique [0002] As we all know, wind power blades are developing towards large size. Even when the power generation remains unchanged, the size of the blades is constantly increasing and lengthening. As the size of the blade changes, the blade becomes more slender and softer. In order to meet the requirements of rigidity, strength and stability, it is necessary to increase the structural layup, especially the layup near the tip of the blade. This will inevitably lead to an increase in the weight of the blade, and the center of mass is closer to the blade. At the same time, as the weight increases, the fatigue load will also...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D1/06B29C70/36
CPCY02E10/74F05B2230/50F05B2240/30F05B2250/70F05B2280/6003Y02E10/72Y02P70/50F03D1/0675F05B2240/302B29D99/0028B29L2031/085B29C70/443F03D1/06F03D3/06B29C70/22B29K2063/00B29K2105/0809B29K2307/04
Inventor 冯学斌彭超义曾竟成邓航杨孚标张子谦
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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