A low-noise and high-efficiency wind blade

A wind blade and high-efficiency technology, which is applied in the direction of wind turbines that are consistent with the wind direction, wind turbines, and wind turbines that are at right angles to the wind direction, etc., can solve problems such as accelerated wear of bearing components, impact on power generation efficiency, shutdown events, etc., to achieve optimization Noise reduction effect, optimization of noise reduction effect, effect of avoiding shutdown events

Active Publication Date: 2019-04-23
江苏华泓机电设备科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the noise problem of wind blades has brought a great negative impact on its promotion. There are also some studies on its noise reduction in the prior art, but they are all extensive.
Among them, brushes and other objects are installed on the sides of the blades to reduce noise, but the research on this is not very in-depth. Therefore, if the blades are randomly set in this way, not only the stability of noise reduction is very uncertain, but also it is easy to be different from the blades. The aerodynamics are reversed to reduce the blade rotation efficiency, thereby affecting the power generation efficiency
[0004] How to improve the rotation efficiency of the blades in the process of noise reduction is also a very important aspect in the research of noise reduction, but no such research content has been found in the prior art
And if the rotation speed of the blade exceeds its limit threshold, it will cause accelerated wear of bearings and other related components, which will seriously cause downtime events. Therefore, in the case of improving efficiency, how to avoid the occurrence of exceeding the threshold rotation also requires in-depth research. aspect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 as shown,

[0032] A low-noise and high-efficiency wind blade includes a blade root, a wingspan, a blade tip, a noise reduction component, and a wind guide component.

[0033] The blade root is located at the root of the entire wind blade, and is connected to the impeller hub of the wind generator at the blade root connection at the root, so as to fix the entire wind blade on the impeller hub.

[0034] The wingspan part is located between the blade root and the blade tip, its width gradually increases from the blade root, then extends to the blade tip and then gradually decreases, and the interior is partially hollow to form an air guide channel communicating with the blade tip .

[0035] The blade tip is provided with an air outlet of the air guide channel at one end of the tip.

[0036] The noise reduction parts are made of thin rubber strips, including the noise reduction parts of the blade root, the noise reduction parts of the wingspan, the nois...

Embodiment 2

[0054] Such as figure 1 and figure 2 Shown: a low-noise and high-efficiency wind blade, including a blade root, a wingspan, a blade tip, a noise-reducing component, and a wind-guiding component.

[0055] The blade root is located at the root of the entire wind blade, and is connected to the impeller hub of the wind generator at the blade root connection at the root, so as to fix the entire wind blade on the impeller hub.

[0056] The wingspan part is located between the blade root and the blade tip, its width gradually increases from the blade root, then extends to the blade tip and then gradually decreases, and the interior is partially hollow to form an air guide channel communicating with the blade tip .

[0057] The blade tip is provided with an air outlet of the air guide channel at one end of the tip.

[0058] The noise reduction parts are made of thin rubber strips, including the noise reduction parts of the blade root, the noise reduction parts of the wingspan, the...

Embodiment 3

[0074] A low-noise and high-efficiency wind blade includes a blade root, a wingspan, a blade tip, a noise reduction component, and a wind guide component.

[0075] The blade root is located at the root of the entire wind blade, and is connected to the impeller hub of the wind generator at the blade root connection at the root, so as to fix the entire wind blade on the impeller hub.

[0076] The wingspan part is located between the blade root and the blade tip, its width gradually increases from the blade root, then extends to the blade tip and then gradually decreases, and the interior is partially hollow to form an air guide channel communicating with the blade tip .

[0077] The blade tip is provided with an air outlet of the air guide channel at one end of the tip.

[0078] The noise reduction parts are made of thin rubber strips, including the noise reduction parts of the blade root, the noise reduction parts of the wingspan, the noise reduction parts of the blade tip and...

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Abstract

The invention relates to a low-noise efficient wind power blade which comprises a blade root, a wingspan, a blade tip, noise reduction parts and a wind guide part. Through cooperation of reasonable distribution and form setting on the noise reduction parts arranged on the two sides of the blade and reasonable setting of the wind guide part, the noise of the wind power blade is greatly reduced. Additionally, by reasonably setting the wind guide part, the wind power utilization rate is increased, and the probability of shutdown events caused by excessively fast rotation of the blade is avoided.

Description

technical field [0001] The invention belongs to the field of wind power generation and materials, in particular to a low-noise and high-efficiency wind blade. Background technique [0002] Although China's wind power generation has slowed down due to transmission and other reasons in recent years, due to the superior availability of this clean energy, with the further development of transmission technology and policies, wind power will gradually increase. Alternatives to thermal power generation or even nuclear power and other power generation methods. [0003] Among the various components of wind power generation, the wind blade is a crucial component, which is not only a vulnerable part but also a relatively difficult component to construct. However, the noise problem of wind blades has brought a great negative impact on its promotion. There are also some studies on its noise reduction in the prior art, but they are all extensive. Among them, brushes and other objects ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D80/00F03D80/40F03D1/04F03D3/04
CPCY02E10/72Y02E10/74
Inventor 王旭张岗
Owner 江苏华泓机电设备科技有限公司
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