Structural part of wind power blade and preparation method of wind power blade shell

A technology for wind turbine blades and structural parts, which is applied in the field of preparation of structural parts and wind turbine blade shells, which can solve the problems of resin infusion cost and design thickness increase, and achieve the effects of weight reduction, buckling resistance improvement, and buckling resistance improvement

Pending Publication Date: 2021-12-07
SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It aims to solve the problem of resin infusion and cost increase caused by the increase in the design thickness of the core material of the blade shell in the prior art

Method used

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  • Structural part of wind power blade and preparation method of wind power blade shell
  • Structural part of wind power blade and preparation method of wind power blade shell
  • Structural part of wind power blade and preparation method of wind power blade shell

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Embodiment Construction

[0040] The following is attached Figure 1-6 and Specific Embodiments The structural components of the wind power blade and the manufacturing method of the wind power blade shell proposed by the present invention are further described in detail. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and all use imprecise scales, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. In order to make the objects, features and advantages of the present invention more comprehensible, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to...

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Abstract

The invention discloses a structural part of a wind power blade and a preparation method of a wind power blade shell. The structural part is laid between main bearing structures of the wind power blade. The structural part comprises a first side wall, a second side wall opposite to the first side wall, a third side wall adjacent to the first side wall and the second side wall and a fourth side wall opposite to the third side wall, the third side wall and the fourth side wall on the cross section of the structural part are both circular arcs, and an included angle is formed between the extension surfaces of the first side wall and the second side wall in the same extension direction. According to the structural part, the weight of the blade core material is greatly reduced; the cost of the blade is effectively reduced, and the buckling resistance of the core material area of the blade is greatly improved; and the cambered surface can ensure that the structural part is well attached to the surface of the blade mold, a blade resin pouring runner is formed, and the manufacturability is good.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of wind power blades, in particular to a method for preparing a structural part of a wind power blade and a shell of a wind power blade. Background technique [0002] The main load-bearing structure of wind turbine blades is made of plates (that is, fiber-reinforced resin composite pultruded plates), including the main beam of the blade and the auxiliary beam at the trailing edge. Core materials are used to fill between the main load-bearing structures. The core materials of the existing wind turbine blade shells are Balsa wood, PET and PVC, which are non-main load-bearing structures and are mainly used for buckling resistance. Increasing the thickness of the core material is the most effective way to increase the buckling resistance. [0003] With the increase of blade length and load, the design thickness of the core material of the blade shell increases, which brings two problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/36B29C70/52F03D1/06B29L31/08
CPCB29C70/36B29C70/52F03D1/0675B29L2031/085Y02E10/72Y02P70/50
Inventor 张振国王国军
Owner SHANGHAI ELECTRIC WIND POWER GRP CO LTD
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