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Wind turbine blade root air bag structure, assembling method thereof and wind turbine blade

A technology of wind power blades and airbags, applied to wind power generation, wind engines consistent with the wind direction, connecting components, etc., can solve problems such as inability to effectively reduce the quality of blades, poor structural strength and stability, and complicated technological processes, and achieve Improve energy utilization efficiency, prevent partial cracking, and improve reliability

Active Publication Date: 2019-06-14
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Most of the existing blade power boosters are blade tip extension technology, and a composite material shell is simply bonded on the basis of the existing blade structure to extend the length of the blade. This scheme is difficult to construct, the process is complicated, and the construction period long
If the design and process control are not perfect, it will easily lead to adverse effects such as poor structural strength and stability
And most importantly, it cannot effectively reduce the quality of the blades
The technology of blade root shape optimization can also improve the energy utilization efficiency of blades and increase the actual output power of wind turbines, but there are few applications at present. The present invention uses this as a breakthrough to develop

Method used

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  • Wind turbine blade root air bag structure, assembling method thereof and wind turbine blade
  • Wind turbine blade root air bag structure, assembling method thereof and wind turbine blade
  • Wind turbine blade root air bag structure, assembling method thereof and wind turbine blade

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Embodiment Construction

[0057] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. Certain embodiments of the invention will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to these set forth embodiments; rather, these embodiments are provided so that this invention will satisfy applicable legal requirements.

[0058] Such as figure 1 As shown, the wind power blade root airbag structure of the present invention includes a base blade 10 and a blade root airbag 20. The blade root region of the base blade 10 includes a leading edge, a trailing edge, a pressure surface and a suction surface, and the blade ...

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Abstract

The invention provides a wind turbine blade root air bag structure, an assembling method thereof and a wind turbine blade comprising the blade root air bag structure. The blade root section of a foundation blade is externally connected with a blade root air bag in a glued mode, wherein the blade root air bag is in a thin disc shape, the pneumatic appearance of the blade root part of the foundationblade is optimized, so that the problems of low structural strength, poor stability and the like caused by simple pasting on the foundation blade to increasing the blade length at present are solved,on the premise that the weight of the foundation blade is hardly increased, the energy utilization efficiency of the blade is improved, and the actual output power of a wind turbine generator unit isincreased.

Description

technical field [0001] The invention belongs to the field of optimization and transformation of wind power generator blades, and relates to a root structure of a wind power blade, in particular to a root airbag structure of a wind power blade, an assembly method thereof, and a wind power blade including the root airbag structure. Background technique [0002] Wind turbines mainly rely on wind turbine blades to capture wind energy, and the length of wind turbine blades directly affects the ability of wind turbines to capture wind energy and the output power of wind turbines. Increasing the length of wind turbine blades at low wind speeds can effectively increase the power generation of wind turbines. However, as the capacity of wind turbine assembly continues to increase, the blades become more slender, and under the action of various loads such as aerodynamic force and gravity, the blades will inevitably bend and twist. Such deformation seriously affects the performance of ...

Claims

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Application Information

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IPC IPC(8): F03D1/06F16B11/00
CPCY02E10/72
Inventor 张磊郭光星杨科
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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