Medium-sized wind power generation blade and application thereof

A wind power generation blade, medium-sized technology, applied in the direction of wind power generation, wind power engine, wind power engine consistent with the wind direction, etc., can solve the problems of inconvenient storage, transportation, weak structure strength, weak wind suction ability, etc., to achieve low Low cost mass production, easy storage and transportation, easy production and processing effects

Pending Publication Date: 2022-05-10
张跃
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small wind receiving area and weak wind suction capacity of the existing wind turbine blades, the effective utilization of wind energy cannot be realized.
In addition, the conventional material used in existing wind power blades is glass fiber reinforced resin, which is an inorganic polymer material. The blades of this material also determine their own weak structural strength. In order to avoid wind damage, wind power blades are generally It is designed in a structural form with successively decreasing widths. This structural form cannot absorb wind well and cannot realize the maximum utilization of wind energy.
Due to the limitation of the shape of the existing wind power blades, in order to receive more wind energy, generally the wind power blades will be made relatively long, most of which are not less than 40m in length. Because the length is too long, storage and transportation are very inconvenient

Method used

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  • Medium-sized wind power generation blade and application thereof
  • Medium-sized wind power generation blade and application thereof
  • Medium-sized wind power generation blade and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] see figure 1 , 2 , a medium-sized wind power generation blade, comprising a blade body 1, and a flat plate structure 2 is arranged on the trailing edge of the blade body 1. The leading edge of the blade body 1 is also provided with a flat plate structure 2 .

[0029] The blade body 1 in this embodiment is provided with a plate structure 2 at the trailing edge, which has a larger wind receiving area, enables the blade body 1 to maximize the utilization of wind energy, and also has a higher strength, which is not easily damaged by wind force , long service life; and because of the large wind-receiving area, the blade body 1 does not need to be so long, and the length within the range of 25-30m can also meet the power generation demand, making the application of medium-sized wind power blades possible. The length of 1 is reduced, which is also convenient for the storage and transportation of the blade body. In addition, the unique design of the trailing edge of the blad...

Embodiment 2

[0035] see image 3 The difference between this embodiment and Embodiment 1 is that the thickness of the flat plate structure 2 is 100 mm, and the end of the trailing edge of the blade body 1 is a curved surface structure, which is beneficial to the greater absorption of wind force at the tail of the wind power blade, is conducive to improving the utilization rate of wind energy, and can also Ensure that the structural strength of the end of the wind power blade is high, not easily damaged by wind force, and has a long service life. The wing plate 11 is a lightweight solid metal plate, which can be an aluminum alloy plate, and the rest of the structure is the same as that of Embodiment 1.

[0036] Taking the blade body 1 with a total length of 25m and a flat plate structure 2 length of 8m as an example, test the power generation efficiency under different wind speed conditions, and compare it with the power generation efficiency of an existing common wind power blade, test and ...

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Abstract

The medium-sized wind power generation blade comprises a blade body, and a flat plate structure is arranged on the rear edge of the blade body; the invention further discloses a wind power system comprising the medium-sized wind power generation blade. According to the wind power generation device, wind energy can be utilized to the maximum extent, and the wind power generation device is high in strength, not prone to being damaged by wind power and long in service life.

Description

technical field [0001] The invention relates to the field of wind power generation, in particular to a medium-sized wind power generation blade and its application. Background technique [0002] Wind turbine blades are the key components of wind turbines. The wind turbine blades are driven by the wind to rotate the hub, and the hub transmits the torque to the main shaft, and finally converts wind energy into electrical energy through the generator. With its clean and environment-friendly features, wind power has become an important part of new energy and has drawn more and more attention from people. [0003] In order to reduce the resistance at the tail of the existing wind power blades, the trailing edge of the wind power blades is generally designed as a curved streamlined structure. The end of the wind power blades with this structure has a small wind receiving area, and the resistance is also relatively small. However, due to the small wind-receiving area and weak wind...

Claims

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Application Information

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IPC IPC(8): F03D1/06F03D9/25
CPCF03D1/0633F03D1/0675F03D9/25Y02E10/72Y02P70/50
Inventor 张跃
Owner 张跃
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