CN217270600U

CN217270600U - Lightning-protection copper cap for blade tip of wind generating set

Info

Publication number: CN217270600U
Application number: CN202221294851.8U
Authority: CN
Inventors: 窦爱永; 郭立松; 李征
Original assignee: Tianjin United Energy New Energy Technology Co ltd
Current assignee: Tianjin United Energy New Energy Technology Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-08-23
Anticipated expiration: 2032-05-25

Abstract

The utility model discloses a lightning-arrest copper cap of wind generating set blade apex, include, fan blade and fan blade apex, be equipped with a plurality of fixed orifices on the fan blade, the outside surface of fan blade apex cup joints and is equipped with metal protection cover, be equipped with fixing device on the metal protection cover, equal fixed grafting is equipped with three lightning rod on the lateral wall around the metal protection cover. The utility model discloses have convenient fixed mounting, be convenient for fix the use to the fan blade of different models, increased the convenience to and have the effect of certain warning.

Description

Lightning-protection copper cap for blade tip of wind generating set blade

Technical Field

The utility model relates to a wind generating set technical field that takes shelter from thunder specifically indicates wind generating set blade apex copper cap that takes shelter from thunder.

Background

Because aerogenerator sets up mostly in spacious high place, the fan blade receives the thunderbolt to influence great, especially the lobe portion of blade, and the damage condition is especially serious in the in-service use, so no matter at present the user or the design side all attach more and more importance to aerogenerator blade's lightning-arrest problem. There are many technical solutions for protecting the tip of the blade in the related technical documents and literature, for example, a practical new lightning protection device named as wind turbine blade tip is disclosed in the patent literature, patent No. 201521069300.1, the design has reasonable structure and firm installation, can play a good lightning protection role on the tip part of the blade, but because the metal protection sleeve body sleeved on the blade tip part of the blade is of a sleeve-shaped structure with one open end, the self weight is larger, the length of the fan blade is more than one hundred meters generally, the fan blade is mostly made of light composite materials, the speed of the blade tip part of the fan in normal operation can reach 60-110m/s, it can be seen that the larger the self-weight of the metal protecting sleeve additionally arranged at the blade tip part is, the larger the centrifugal force is, so that the self-weight of the metal protecting sleeve has great influence on the operation of the whole fan. In addition, a considerable part of fan blades in practical application are manufactured by hands, and the outline and the shape of the tip part of each blade are different, so that the metal protective sleeve needs to be tailored, otherwise, the metal protective sleeve is difficult to match. The custom-made blade tip part has low efficiency and high cost, simultaneously influences the normal operation of the fan, and the metal protective sleeve is more difficult to install for the blade tip part repaired by lightning stroke, damage and the like.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is, the inconvenient installation of lightning arrester.

In order to solve the technical problem, the utility model provides a technical scheme does: wind generating set blade apex copper cap that takes shelter from thunder includes, fan blade and fan blade apex, be equipped with a plurality of fixed orifices on the fan blade, fan blade apex outside surface cup joints and is equipped with the metal lag, be equipped with fixing device on the metal lag, all fixed grafting is equipped with three lightning rod on the lateral wall around the metal lag.

As an improvement: the fixing device comprises a plurality of second fixing holes, the second fixing holes and the fixing holes are arranged oppositely, a plurality of fixing bolts are inserted into the second fixing holes, and one ends of the plurality of fixing bolts penetrate through the fixing holes.

As an improvement: and the inner side wall of the metal protective sleeve is bonded with the outer side wall of the blade tip of the fan blade.

As an improvement: the lightning rod is perpendicular to the metal protective sleeve.

As an improvement: and warning lamps are arranged on the front side wall and the rear side wall of the metal protective sleeve.

Compared with the prior art, the utility model the advantage lie in: this device is before using, and it is fixed with the point portion of fan cotyledon to be convenient for utilize metal lag, utilizes outside fixing device, is convenient for fix the fan cotyledon of different models size, has increased the practicality, secondly the low cost of this device, facilitates the use, and has certain warning effect.

Drawings

Fig. 1 is a schematic structural diagram of a lightning protection copper cap of a blade tip of a wind generating set blade.

Fig. 2 is a right side view of a lightning protection copper cap of a blade tip of a wind generating set blade.

As shown in the figure: 1. fan blade, 2, fan blade apex, 3, metal lag, 4, fixing device, 401, fixed orifices two, 402, fixing bolt, 5, lightning rod, 6, warning light, 7, fixed orifices.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

With reference to fig. 1 and 2, the lightning-protection copper cap for the blade tips of the wind generating set blades comprises a fan blade 1 and a fan blade tip 2, wherein a plurality of fixing holes 7 are formed in the fan blade 1, a metal protecting sleeve 3 is sleeved on the outer surface of the fan blade tip 2, a fixing device 4 is arranged on the metal protecting sleeve 3, three lightning rods 5 are fixedly inserted into the front side wall and the rear side wall of the metal protecting sleeve 3, and the lightning rods 5 are perpendicular to the metal protecting sleeve 3.

The fixing device 4 comprises a plurality of second fixing holes 401, the second fixing holes 401 and the fixing holes 7 are arranged oppositely, a plurality of fixing bolts 402 are inserted into the second fixing holes 401, and one ends of the fixing bolts 402 penetrate through the fixing holes 7.

The inner side wall of the metal protecting sleeve 3 is bonded with the outer side wall of the fan blade tip 2, and warning lamps 6 are arranged on the front side wall and the rear side wall of the metal protecting sleeve 3.

The utility model discloses when concrete implementation, this device is when using, at first closely bond metal protective sheath 3 in fan blade apex 2 department, then pass fixed orifices 7 and two 401 in fixed orifices with fixing bolt 402 in proper order, it is fixed with fixing bolt 402 and fan blade 1, thereby realize installing lightning arrester on fan blade 1, when using, lightning rod 5 on the lateral wall of both sides will play the effect around the metal protective sheath 3, and when using night, warning light 6 will play the effect of warning, in order to avoid high altitude collision.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, it should be understood that those skilled in the art should also understand the scope of the present invention without inventively designing the similar structure and embodiments of the present invention without departing from the spirit of the present invention.

Claims

1. Wind generating set blade apex copper cap that takes shelter from thunder includes, fan blade (1) and fan blade apex (2), its characterized in that, be equipped with a plurality of fixed orifices (7) on fan blade (1), fan blade apex (2) outside surface cup joints and is equipped with metal protection cover (3), be equipped with fixing device (4) on metal protection cover (3), all fixed grafting is equipped with three lightning rod (5) on the lateral wall around metal protection cover (3).

2. The wind generating set blade tip lightning protection copper cap according to claim 1, characterized in that the fixing device (4) comprises a plurality of second fixing holes (401), the second fixing holes (401) and the fixing holes (7) are arranged oppositely, a plurality of second fixing holes (401) are provided with fixing bolts (402) in an inserted manner, and one ends of the plurality of fixing bolts (402) penetrate through the fixing holes (7).

3. The wind generating set blade tip lightning protection copper cap according to claim 1, characterized in that the inner side wall of the metal protecting sleeve (3) is bonded with the outer side wall of the fan blade tip (2).

4. Wind turbine generator system blade tip lightning protection copper cap according to claim 1, characterised in that said lightning rod (5) is placed perpendicular to the metal protective sheath (3).

5. The wind generating set blade tip lightning protection copper cap according to claim 1, characterized in that warning lamps (6) are arranged on the front side wall and the rear side wall of the metal protecting sleeve (3).