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Offshore carbon fiber wind power blade lightning protection system

A lightning protection system and offshore wind power technology, applied in wind power generation, wind turbines, machines/engines, etc., can solve the problems of carbon fiber blade main beam being struck by lightning, uneven current distribution of lightning protection system, heat accumulation, etc., and achieve current conduction The effect of uniform distribution, avoiding local breakdown, and uniform heat distribution

Inactive Publication Date: 2019-10-08
JILIN CHONGTONG CHENGFEI NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention intends to provide a lightning protection system for offshore carbon fiber wind power blades to solve the problems in the prior art that the main girder of carbon fiber blades is easily struck by lightning, uneven local current distribution, charge accumulation, and heat accumulation in the lightning protection system

Method used

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  • Offshore carbon fiber wind power blade lightning protection system
  • Offshore carbon fiber wind power blade lightning protection system
  • Offshore carbon fiber wind power blade lightning protection system

Examples

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Embodiment

[0030] Basic as attached figure 1 , figure 2 , image 3 Shown: a lightning protection system for offshore carbon fiber wind power blades, including a blade tip lightning receptor 1, a metal mesh 5, a number of conductive plates, conductive bolts 3 and wires, the conductive plates include two pairs of blade root conductive plates 4 and two pairs of Blade tip conductive plate 2, combined with Figure 8 As shown, the blade tip air receptor 1 and the blade tip conductive plate 2 are fixed on the blade tip and connected by conductive bolts 3, combined with Figure 9 , Figure 10 As shown, the blade root conductive plate 4 is fixed on the blade root, and the blade root conductive plate 4 is connected to the conductive bolt 3 . The metal edges and corners of the conductive plate are rounded.

[0031] Metal mesh 5 is copper mesh or aluminum alloy mesh (preferably copper mesh in the present embodiment), and metal mesh 5 is covered on blade main beam 6, and metal mesh 5 is positio...

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Abstract

The invention relates to the technical field of lightning protection equipment, and discloses an offshore carbon fiber wind power blade lightning protection system. The system comprises a blade tip lightning arrester, a metal net, a plurality of conducting plates, a conducting bolt and a conducting wire, wherein the conducting wire is connected with the conducting bolt, the conducting plates comprise a plurality of paired blade root conducting plates and a plurality of paired blade tip conducting plates, the blade tip lightning arrester and the blade tip conductive plates are fixed at the tipof the blade and are connected through the conducting bolt, the plurality of blade root conducting plates are fixed to the root portion of the blade and are connected with the conducting bolt, and themetal net cover a main beam of the blade. According to the system, lightning is transmitted to the metal net through the blade tip lightning arrester and the blade tip conducting plates and then is transmitted to the blade root conducting plates, so that no interruption and sudden change of currents is generated in the whole lightning protection system, and gap discharge and partial discharge areavoided, current conduction is uniform, heat distribution caused by current conduction is uniform, and local overheating aging is avoided.

Description

technical field [0001] The invention relates to the technical field of lightning protection equipment, in particular to an offshore carbon fiber wind power blade lightning protection system. Background technique [0002] Wind turbines are usually installed offshore. Since the blades of wind turbines are at a higher position during rotation, they are easily struck by lightning in thunderstorms. Therefore, it is necessary to install lightning protection devices on the blades and carbon fiber main beams of wind turbines. [0003] Most of the existing lightning protection devices are simple in design, and only involve lightning receptors, wires and related connections. This method cannot protect carbon fiber blades, because carbon fiber blades are semiconductors, which are easy to cause lightning, but cannot withstand lightning strikes. It is also not conducive to the conduction of current and heat, and it is prone to uneven local current distribution, charge accumulation, and h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D80/30
CPCF03D80/30Y02E10/72
Inventor 谢磊袁亚丽陈千婷文蕾秦梓程荣光
Owner JILIN CHONGTONG CHENGFEI NEW MATERIAL
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