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Array type horizontal shaft wind-power blade

A wind power blade and horizontal shaft technology, applied in the field of split horizontal shaft wind power blades, can solve the problems of heavy blade weight, difficult processing, complex structure, etc., and achieve the effects of good aerodynamic performance, reduced blade weight, and simple internal mechanism of the blade

Inactive Publication Date: 2012-03-07
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the disadvantages of heavy blades, complex structures, low strength, and difficult processing in the prior art, thereby providing a split-type horizontal-axis wind turbine blade

Method used

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  • Array type horizontal shaft wind-power blade
  • Array type horizontal shaft wind-power blade
  • Array type horizontal shaft wind-power blade

Examples

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Effect test

Embodiment Construction

[0027] The technical solutions provided by the present invention are further described below in conjunction with the examples.

[0028] like figure 1 , 2 As shown in , 3, the transverse section of the horizontal axis wind power blade with split blades perpendicular to the span direction is a typical airfoil of a wind power machine. The size ratio can be properly distributed, for example, if the area of ​​the adjustable part is increased, the adjustment effect of the blade can be increased, but the adjustment power will be increased accordingly. The present invention is applicable to the design of blades of horizontal-axis wind turbines of various sizes and power ranges. The contact surface of the two parts along the spanwise split crack is a matching arc surface, which is convenient for adjustment and greatly reduces the need for adjustment. power used, such as Figure 4 shown.

[0029] The root of the front part is provided with a fixed flange and is fixedly connected wit...

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Abstract

The invention relates to an array type horizontal shaft wind-power blade. The transverse cutting section of the wind-power blade vertical to the spanwise direction is of a typical airfoil shape of a wind turbine, wherein the wind-power blade is divided into a front part and a rear part from the root along the spanwise direction, a contact surface of the two parts along the split crack is a matchedchamfered surface, wherein one part can be rotatably adjusted, and the front part and the rear part are arrayed together to form an array type wind-power blade. An adjusting mechanism of the adjustable part is arranged in an external wheel hub. The array type horizontal shaft wind-power blade has main advantages that: according to the wind field situation, the adjustable part can be rotated so asto reach the aim of changing the camber and effective attack angle; the array type horizontal shaft wind-power blade has strong adaptability to incoming flow and high pneumatic efficiency, obviouslyenhances the pneumatic performance of a root area, and effectively performs powder control adjustment; the brake is more simple and effective under the condition of strong wind and utmost limit; arrayadjustment needs low power, the control mechanism is simple and convenient, an internal mechanism of the blade is simple, the weight is effectively reduced and the strength is improved.

Description

technical field [0001] The invention relates to the field of general design methods for horizontal-axis wind turbine blades, in particular to a split-type horizontal-axis wind turbine blade. Background technique [0002] Due to the increasing shortage of fossil energy (petroleum, coal, etc.) and the environmental pollution it brings, the development and utilization of clean and renewable energy has become the consensus of mankind, which has attracted increasing attention and attention from all over the world. Wind power is a clean renewable energy with the most commercial value at present. It was developed earlier in foreign countries and its technology is mature. The development of my country's wind power industry is relatively slow, but it has been listed as the focus of renewable energy development after 2005. support. At present, various kinds of wind power generators have been developed and produced at home and abroad. [0003] At present, most of the common wind turbi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D1/06F03D11/00
CPCY02E10/722Y02E10/721Y02E10/72
Inventor 陈江杜刚魏大盛蒋向华王延荣申秀丽李晓东郑赟高军辉
Owner BEIHANG UNIV
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