Pultrusion part for wind power blade, perfusion method of wind power blade and wind power blade

A technology for wind power blades and blades, applied in household components, applications, household appliances, etc., can solve problems such as perfusion, and achieve the effect of increasing the bonding area, improving the perfusion effect, and reducing the risk of reverse wrapping

Active Publication Date: 2019-05-10
SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Resin flows from the right to the left, and it is easy to turn up the bottom of the pultruded part, which is easy to cause infusion defects

Method used

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  • Pultrusion part for wind power blade, perfusion method of wind power blade and wind power blade
  • Pultrusion part for wind power blade, perfusion method of wind power blade and wind power blade
  • Pultrusion part for wind power blade, perfusion method of wind power blade and wind power blade

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Experimental program
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Effect test

Embodiment 1

[0042] Such as figure 2 , image 3 As shown, the pultruded part 1 of the present invention is a prism, and the cross-section in the thickness direction of the pultruded part 1 is a parallelogram. The upper right corner and the lower left corner are acute angles, and there are chamfers 2 at the acute corners of the parallelogram. The chamfering at the acute corners can ensure that the receiving platform 6 is better formed when the resin is poured later. As an alternative, there may be no chamfer 2 at the acute corners of the parallelogram. In order to better pour the pultruded part 1 , the pultruded part has a splicing surface 4 , and the part of the splicing surface 4 corresponding to the acute angle has an inclined surface 3 . Preferably, the splicing surface 4 is two opposite surfaces.

[0043] Through the pultruded parts with parallelogram section, and ensure that the adjacent splicing surfaces are parallel and the stacked surfaces are on the same plane, the weak throug...

Embodiment 2

[0052] The steps of this embodiment are basically the same as those of Embodiment 1, the difference is that in order to make wind power blades, step S2 may also include: stacking the pultruded part 1 in the blade mold, and laying layers and core materials in the blade mold ; After the step S3, the following steps may also be included: through the vacuum infusion process, the pultrusion, the layup and the core material are integrally infused and solidified to form the whole blade shell.

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Abstract

The invention discloses a pultrusion part for a wind power blade, a perfusion method of the wind power blade and the wind power blade. The pultrusion part is in a prism shape, and the cross section inthe thickness direction of the pultrusion part is in a parallelogram shape; the perfusion method of the wind power blade comprises the following steps that the pultrusion parts are arranged togetheraccording to the mode that splicing faces are spliced together, the adjacent splicing surfaces are parallel, a through seam is formed between the splicing surfaces, one layer of the pultrusion part isstacked upwards, so that the piling surface can be ensured to be on a plane; and the resin is poured from the lowest point of the highest layer of the pultrusion part stack. According to the method for pouring the wind power blade, the strength of the through seam can be enhanced, the risk that the pultrusion part resin is reversely wrapped is reduced, and the overall strength and the pouring effect of a main beam are improved.

Description

technical field [0001] The invention relates to a pultrusion piece of a wind power blade, a pouring method of the wind power blade and the wind power blade. Background technique [0002] At present, the demand for clean energy is increasing in countries all over the world, and wind power is developing rapidly as one of clean energy. The composition of wind turbines with large rotor diameters has become the mainstream technology trend in the field of wind power. The increase in blade length puts forward new requirements for blade structure design and manufacturing processes. [0003] Wind turbine blades usually consist of upper and lower shells to form the outer contour, and the main girder-web structure is used internally for load bearing, and the main girder is the main load-bearing component. As the length of the blade increases, the load on the main girder is also increasing, and the requirements for the main girder are also getting higher and higher. [0004] As the ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29B11/14B29C70/36B29C70/38B29L31/08
Inventor 文欢王国军齐志攀亚纪轩李海涛
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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