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Method of preparing main girder of wind turbine blade of wind driven generator set by using whole breath pultrusion plates

A technology of wind turbines and wind rotor blades, applied in applications, household appliances, household components, etc., can solve the problems of main girder products such as whitening, easy to wrinkle, and poor product quality, so as to achieve reasonable process design and avoid girder Wrinkle, operability strong effect

Inactive Publication Date: 2019-08-16
LIANYUNGANG ZHONGFU LIANZHONG COMPOSITES GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Such a process has certain disadvantages. For example, the fiber cloth laying process is prone to wrinkles, which has a great impact on the quality of the finished main girder. Wrinkles in the main girder products are generally penetrating, and the main girder products can only be scrapped.
The main beam produced by the vacuum infusion process, the vacuum leak will also make the main beam product white, dry fiber cloth and other defects, and the product quality is poor

Method used

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  • Method of preparing main girder of wind turbine blade of wind driven generator set by using whole breath pultrusion plates
  • Method of preparing main girder of wind turbine blade of wind driven generator set by using whole breath pultrusion plates

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Embodiment 1

[0022] like figure 1 As shown, a method for preparing the main beam of a wind turbine blade with a full-width pultruded plate includes the following steps:

[0023] a. First, lay the first layer of release cloth 5 on the mold 1 by bonding the double-sided adhesive tape 3;

[0024] b. According to the design requirements, alternately lay the entire width of the pultruded board 6 and the resin film 7 on the first layer of release cloth 5;

[0025] c. Then lay the second layer of release cloth 8, perforated film 9 and air felt 10 on the uppermost full-width pultrusion board 6;

[0026] d. Then lay a vacuum film 11 on the air felt 10, seal the vacuum film 11 with a sealing tape 4, vacuumize to -0.098MPa through the suction port 2 on the mold, and heat to 80°C for curing and molding (structure such as figure 2 ).

[0027] A method for preparing the main beam of the wind turbine blade of a wind turbine with a full-width pultruded plate as described above, the full-width pultrude...

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Abstract

The invention discloses a method of preparing a main girder of a wind turbine blade of a wind driven generator set by using whole breath pultrusion plates. The method comprises the following steps: paving release cloth (5) on the surface of a mold; alternately paving the whole breath pultrusion plates (6) and resin films (7); then successively paving release cloth (8), a film (9) with holes and aventilating felt (10); and finally, paving a vacuum film (11) to vacuumize and carrying out vacuumized heating to cure and form. The method provided by the invention is reasonable in process design and high in operability. By adopting a whole breath pultrusion plate and resin film alternate paving process and a vacuum assisted pre-curing forming process, a main girder is produced favorably. The whole breath pultrusion plates are small in thickness, so that the whole breath pultrusion plates are easy to be matched with the mold. The glue content of the resin film is fixed, so that the glue content of a product is controlled favorably. The product is stable in weight, the main girder is formed favorably, and the defects of wrinkling and pouring of the main girder can be solved thoroughly. Aprepared whole breath pultrusion product is stable in glue content and high in product quality.

Description

technical field [0001] The patent of the invention relates to a method for preparing wind turbine blade accessories of a wind power generating set, in particular to a method for preparing the main beam of a wind turbine blade using a full-width pultruded plate. Background technique [0002] In the blade production process, the main girder is the main component of the wind turbine composite wind turbine blade, and the traditional process of the main girder is formed by the dry fiber cloth vacuum infusion process in the production process. Such a process has certain disadvantages. For example, the fiber cloth laying process is prone to wrinkles, which has a great impact on the quality of the finished main girder. Wrinkles in the main girder products are generally penetrating, and the main girder products can only be scrapped. The main beam produced by the vacuum infusion process, the vacuum air leakage will also make the main beam product white, dry fiber cloth and other defec...

Claims

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Application Information

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IPC IPC(8): B29C70/34B29C70/44B29L31/08
CPCB29C70/342B29C70/443B29L2031/085Y02P70/50
Inventor 乔光辉刘卫生乔小亮常江
Owner LIANYUNGANG ZHONGFU LIANZHONG COMPOSITES GRP
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