Carbon fiber girder lightning arrester and maintenance method

A lightning protection device, carbon fiber technology, applied in wind turbines, wind turbines, motors and other directions that are consistent with the wind direction, can solve problems such as blade damage and damage to carbon beams, so as to improve power generation efficiency, ensure safe operation, and reduce lightning strikes effect of probability

Active Publication Date: 2021-06-04
国能联合动力技术(保定)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the copper grid is offset, there are only a few layers of FRP on the outer surface of the carbon fiber girder. Because carbon fiber has conductive properties, lightning will connect with the carbon fiber girder under the FRP, thereby damaging the carbon girder and damaging the blades.

Method used

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  • Carbon fiber girder lightning arrester and maintenance method
  • Carbon fiber girder lightning arrester and maintenance method
  • Carbon fiber girder lightning arrester and maintenance method

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Embodiment Construction

[0031] In order to better understand the purpose, structure and function of the present invention, a carbon fiber girder lightning protection device and maintenance method of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] Such as Figure 1 to Figure 6 As shown, it is shown that the present invention discloses a carbon fiber girder lightning protection device and maintenance method. Considering that the main copper grid 1 on the surface of the carbon fiber girder deviates from the position of the girder due to the laying deviation, there is an exposed carbon fiber girder, in order to avoid its contact with the lightning in the air , and repair it by adding lightning protection devices at exposed positions.

[0033] A carbon fiber girder lightning protection device of the present invention is laid on the surface of the exposed carbon fiber girder, including connecting copper mesh 2, reinforced copper mesh 9...

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Abstract

The invention discloses a carbon fiber girder lightning arrester and a maintenance method. The lightning arrester is laid on the surface of an exposed carbon fiber girder, and comprises a connecting copper net, a reinforced copper net and a main copper net which are respectively laid on the surface of the exposed carbon fiber girder, wherein a copper net connecting plate and a copper net connecting cover plate are respectively arranged on the lower side and the upper side of the connecting copper net, and are used for fixing the connecting copper net; the reinforced copper net is laid on the connecting copper net and used for increasing the thickness of the connecting copper net; and the main copper net is laid on the connecting copper net. According to the carbon fiber girder lightning arrester and the maintenance method, the lightning stroke probability of a wind power blade in operation is effectively reduced, and safe operation of a fan is guaranteed, so that the power generation efficiency of the fan is improved.

Description

technical field [0001] The invention relates to the field of wind power blades, in particular to a carbon fiber girder lightning protection device and a maintenance method. Background technique [0002] With the development of the wind power industry, the blade length has reached more than 100 meters. As the main load-bearing structural part of the blade, the girder is also more designed as a carbon fiber structure. In order to protect the blade from lightning strikes during operation, a copper mesh layer is laid on the outer surface of the carbon fiber girder to connect with the lightning protection point of the blade body and the lightning protection line of the inner cavity of the blade, and then connected with the grounding device at the root of the blade. When the lightning touches the copper grid, the current is connected to the ground through the lightning conductor, so as to prevent the blade from being struck by lightning. [0003] During the laying and manufactur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/30F03D80/00F03D1/06
CPCF03D80/30F03D80/00F03D1/0633F03D1/0675Y02E10/72
Inventor 程朗宁慧森周杰王富平
Owner 国能联合动力技术(保定)有限公司
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