Manufacturing process of wind turbine blade with blade root preform
A wind turbine blade and manufacturing technology, which is applied to household components, household appliances, other household appliances, etc., can solve the problem that the blade tip area of the blade root prefab and the mold surface are easy to form folds and other problems, so as to solve the subsequent layup folds. Effect
Active Publication Date: 2021-06-04
SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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AI Technical Summary
Problems solved by technology
[0005] The technical problem to be solved by the present invention is to overcome the defect that wrinkles are easily formed between the blade tip area of the blade root prefabricated part and the mold surface when the blade root prefabricated part is used in the prior art, and to provide a A kind of preparation technology of wind turbine blade with blade root preform
Method used
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[0031] The present invention is further illustrated below by means of examples, but the present invention is not limited to the scope of the examples.
[0032] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention.
[0033] A preparation process of a wind power blade with a blade root prefabricated part. The wind power blade includes a blade decreasing layer 11, a blade root thickening layer 12, a ligh...
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Abstract
The invention discloses a preparation process of a wind power blade with a blade root prefabricated part. The wind power blade includes a blade decreasing layer, a blade root thickening layer, a light and thin flexible layer, a skin, a core material, a part of the blade decreasing layer and a part of the wind power blade. The blade root thickening layer forms the main body of the blade root preform, and the blade root preform also includes a thin and flexible layer. A layer of light and thin flexible layer, multi-layer blade decreasing layer and multi-layer blade root thickening layer are laid in the blade root prefabricated part mold, and the light and thin flexible layer protrudes out of the main body of the blade root prefabricated part to prepare the blade root prefabricated part; the blade root prefabricated part Put it in the mold of the wind power blade, open multiple V-shaped notches on the thin and flexible layer; lay the remaining blade decreasing layer and blade root thickening layer, skin and core material on the blade root prefabricated part to prepare the wind power blade. Using multiple V-shaped notches on the thin and flexible layer can make the thin and flexible layer fully fit the mold of the wind power blade, thereby solving the problem of subsequent laminated layer wrinkles caused by the step at the tip of the blade root preform.
Description
technical field [0001] The invention relates to a preparation process of a wind power blade with a blade root prefabricated part. Background technique [0002] Wind turbine blades are the core components of wind turbines. During the operation of the blade, the wind energy load borne by the blade body is all transmitted to the pitch bearing through the blade root. Therefore, the blade root area of the blade should have good structural performance, and it is required that there are no defects such as fiber folds in this area. With the development of large-scale blades, the thickness of the layer and the diameter of the truncated circle at the root of the blade continue to increase. The traditional one-time molding process is likely to lead to difficulties in the layering of the blade root, prolonged pouring time, and severe curing heat release. In order to improve quality and efficiency, and reduce blade scrapping caused by blade root defects, the use of blade root prefabri...
Claims
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IPC IPC(8): B29C70/36B29L31/08
Inventor 白宏伟李海涛齐志攀赵大文
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD