Blade for wind turbine

A technology of wind turbines and blades, which is applied to wind turbine components, wind engines, and wind turbines in the same direction as the wind, and can solve the problems of wind turbine power generation reduction, overall weight increase, and aerodynamic efficiency decline. Guaranteed power generation effect

Inactive Publication Date: 2011-01-12
SINOMATECH FUNING WIND POWER BLADE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when the thickness of the blade increases, its overall weight will also increase, and at the same time, the aerodynamic efficiency will also decrease due to the increase in blade thickness, resulting in a decrease in the power generation of the wind turbine

Method used

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  • Blade for wind turbine
  • Blade for wind turbine

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Embodiment 1

[0016] see figure 1 Shown is a blade for a wind generator, the blade is made of glass fiber uniaxial fabric. Among them, the outer skin 1 of the blade is made of triaxial glass fabric, which bears most of the shear load, and improves the torsional stiffness of the blade to ensure the shape of the blade; the trailing edge of the blade 2 is bonded by adhesive; the core material 3 is made of PVC and balsa wood, Reduce the weight of the blade and improve the anti-stabilization performance of the blade; the main spar cap 4 adopts high-performance glass fiber unidirectional fabric, which is the main bearing part of the blade, and the stiffness of the blade is improved through the improvement of the invention, and the bearing capacity is stronger under the same weight; The cut rib 5 is mainly made of PVC foam, which supports the main beam.

[0017] The above-mentioned high-performance unidirectional composite materials are applied in the design and development of megawatt blades to ...

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Abstract

The invention discloses a blade for wind turbine, wherein the blade is made of glass fiber fabrics. The blade for wind turbine avoids increasing the thickness and weight of the blade on the premise of ensuring the structural rigidity and strength of blade; therefore, the aerodynamic efficiency of the blade is maintained and the generating capacity of the wind turbine is ensured.

Description

technical field [0001] The invention relates to a blade used for a wind power generator, and belongs to the field of design and development of megawatt-level blades. Background technique [0002] In the early 1970s, due to the oil crisis, there was a problem of energy shortage. People realized the instability and limitation of conventional mineral energy supply, so the search for clean and renewable energy has become an important issue in the modern world. Among them, wind energy has attracted people's attention as a renewable and pollution-free natural energy. [0003] Wind power technology is an emerging industry, and it is a green energy industry with rapid development, which has been developing by leaps and bounds. The core of wind power technology is a wind turbine, which is a power machine that converts wind energy into mechanical work. The core component of a wind turbine is the blade, and the design of the blade determines the ability of the fan to capture wind ene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/00F03D1/06
CPCY02E10/722Y02E10/72
Inventor 杨荣强梁春宇齐沛玉吴旭虹
Owner SINOMATECH FUNING WIND POWER BLADE
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