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Combination type wind turbine blade and wind generating set comprising same

A wind rotor blade and combined technology, applied in the field of wind rotor blades and wind turbine components, can solve problems such as inconvenience, and achieve the effects of expanding the application range, smooth and smooth outer surface, and good aerodynamic performance.

Inactive Publication Date: 2014-12-17
GUODIAN UNITED POWER TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] This shows that the above-mentioned existing combined wind rotor blade obviously still has inconvenience and defects in the connection mode, and needs to be further improved urgently.

Method used

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  • Combination type wind turbine blade and wind generating set comprising same
  • Combination type wind turbine blade and wind generating set comprising same
  • Combination type wind turbine blade and wind generating set comprising same

Examples

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Embodiment Construction

[0040] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the present invention will be described in detail in combination with specific examples and accompanying drawings.

[0041] In order to overcome the problems existing in the existing combined wind rotor blade connection method, the present invention provides a combined wind rotor blade, and the combined segments are connected by a flange connection structure of a wedge strip connection type.

[0042] The following only takes the two-stage combined wind rotor blade as an example to describe in detail, and other multi-stage combinations refer to the two-stage combination.

[0043] Such as Figure 7 As shown, the wind rotor blade includes a first composite section 1 and a second composite section 2, and among the butt end faces of the two, the end face near the blade root is connected to the inner flange 3, and the end face far away from the blade root is connected to th...

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Abstract

The invention discloses a combination type wind turbine blade and a wind generating set comprising the same. The butt end surfaces of two adjacent combination sections of the blade are connected with an inner flange plate and an outer flange plate respectively; the inner flange plate and the outer flange plate are in insertion fit with each other, and the side walls of insertion fit parts are intersected to form a plurality of rectangular grooves; each rectangular groove is divided into an upper section and a lower section through a front edge opening and a rear edge opening in the outer flange plate; the wind turbine blade further comprises a plurality of groups of wedge-shaped strips; a left wedge-shaped strip and a right wedge-shaped strip in each group of wedge-shaped strips are reversely inserted into the corresponding rectangular groove from openings in two ends of the same rectangular groove respectively and are in interference fit with the corresponding rectangular groove; positioning plugs are further fixedly arranged at the front edge opening and the rear edge opening. The combination type wind turbine blade is simple in structure, high in connection strength, high in reliability, easy, convenient and quick to mount, good in torsion resistance after connection, and good in pneumatic appearance; the manufacturing difficulty and the transporting difficulty of large-sized wind turbine blades can be reduced, the production cost and the transporting cost are reduced, the production efficiency and the transporting efficiency are improved, and on-site quick assembly is realized.

Description

technical field [0001] The invention relates to the field of wind power generator components and wind rotor blades, in particular to a combined wind rotor blade and a wind power generator containing the blade. Background technique [0002] Wind power is a clean and renewable green energy, and its development and utilization has become a form of energy that countries around the world are vying to adopt in the 21st century. The improvement of blade aerodynamic shape and the increase of blade length are one of the important technical means to increase the power of wind power generation. Therefore, the design and manufacture of large blades has become an important link in wind power technology. At present, the length of blades has increased from more than 30 meters to nearly 70 meters, which greatly increases the difficulty of manufacturing and transporting large wind turbine blades. However, manufacturing and transportation are inefficient, costly, and risky. These unfavorable...

Claims

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Application Information

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IPC IPC(8): F03D11/00
CPCY02P70/50
Inventor 张健志韩新月周胜兵
Owner GUODIAN UNITED POWER TECH
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