Wind turbine blade for large-scale wind generating set, and molding method thereof

A technology of wind turbines and wind rotor blades, which is applied to wind turbine components, wind engines, wind power generation, etc., and can solve problems affecting structural strength and service life, high investment in equipment, and low production efficiency, so as to avoid structural strength and the effect of service life

Active Publication Date: 2010-06-23
CHONGQING GENERAL IND (GRP) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (3) Prepreg molding process, due to the high cost, almost no independent wind power blade manufacturing enterprises adopt this production process
In addition, there are fatal defects such as multiple molding of composite materials affecting the structural strength and service life, and the large investment in equipment, large plant investment, and many production processes lead to low production efficiency and increase the manufacturing cost of wind turbine blades

Method used

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  • Wind turbine blade for large-scale wind generating set, and molding method thereof
  • Wind turbine blade for large-scale wind generating set, and molding method thereof
  • Wind turbine blade for large-scale wind generating set, and molding method thereof

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Embodiment Construction

[0060] The present invention will be further described below.

[0061] see figure 1 , figure 2 , image 3 and Figure 4 The wind rotor blade of a large-scale wind power generating set shown is a thin-shell structure, which is formed by bonding two halves of the pressure surface 15 and the suction surface 16. The leading edge 6 of the pressure surface and the suction surface passes through the leading edge connection angle 9 connection, the trailing edge of the pressure surface and the suction surface are connected by the connection angle 14 of the trailing edge 3; the pressure surface 15 and the suction surface 16 of the blade are respectively provided with a girder 11 extending from the blade root 1 to the blade tip 4, and the girder 11 The width is about 430 mm, and the line connecting the center of the section corresponding to the two beams 11 is perpendicular to the chord line of the blade section (the chord line is the line connecting the frontmost apex of the leading...

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Abstract

The invention discloses a wind turbine blade for a large-scale wind generating set (wind-power blade for short). The wind-power blade has a thin shell structure and is combined by adhering two pieces of semi-shells; crossbeams which are extended from a blade root to a blade tip are respectively arranged in the two shells of the blade; a main shear web is adhered between the two crossbeams so as to form an I-shaped structure; a trailing edge shear web which is parallel to the main shear web is arranged on the side, between the two shells, close to the trailing edge; and the upper end and the lower end of the trailing edge shear web are respectively connected with the two shells. The invention also discloses a molding method for the wind turbine blade, which comprises the step of performing one-time molding on the crossbeams, a blade root enhancement layer and a shell by the technology of vacuum perfusion (RIM). Due to the adoption of the solution of the one-time molding technology, the quality defect caused by post molding of a composite material is avoided, the structural strength of a manufactured wind-power blade is improved and the service life of the manufactured wind-power blade is prolonged, and production efficiency is remarkably improved and production cost is reduced.

Description

technical field [0001] The invention relates to a component of wind power generating equipment and a manufacturing method thereof, in particular to a wind rotor blade of a large wind power generating set and a forming method thereof. Background technique [0002] Large-scale wind turbine blades (referred to as "wind turbine blades") are thin-shell structures, usually made of composite materials, and composed of two half-shells bonded together. Generally, the windward side of a wind turbine blade that bears pressure is called the Pressure Side, and the leeward side is called the Suction Side. [0003] At present, the main methods of forming wind turbine blades are: [0004] (1) Hand lay-up process and wet prepreg process derived from it; [0005] (2) Vacuum infusion process, also known as vacuum introduction method (Resin Infusion Moulding, abbreviated as RIM); [0006] (3) Prepreg molding process, due to the high cost, almost no independent wind power blade manufacturing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/00B29C70/34F03D80/00
CPCY02E10/72B29L2031/085Y02E10/722Y02P70/50
Inventor 钟方国董静军宋厚利李明星黎江卓文
Owner CHONGQING GENERAL IND (GRP) LTD
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