CN219081781U

CN219081781U - Blade lightning protection assembly

Info

Publication number: CN219081781U
Application number: CN202222556260.XU
Authority: CN
Inventors: 郑先锐; 孙玉兰; 张栓柱; 张伟; 李会会
Original assignee: Binzhou Yue Hydropower Energy Co ltd
Current assignee: Binzhou Yue Hydropower Energy Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-05-26
Anticipated expiration: 2032-09-27

Abstract

The utility model relates to the technical field of lightning protection of wind driven generators, in particular to a blade lightning protection assembly, which comprises a wind driven generator set, wherein the wind driven generator set comprises a support column, the top end of the support column is provided with a generator case, the front end of the generator case is coaxially connected with a rotor, and a plurality of blades distributed in an annular manner are arranged on the rotor along the side wall; the lightning arrester comprises a lightning arrester box seat, a lightning rod is arranged on the lightning arrester box seat, a lead post is connected with the lightning arrester box seat, and a drainage wire is arranged in the lead post; the lightning protection device can be used for carrying out lightning protection on the wind generating set in a range, so that the damage of the wind generating set blade is avoided; through pressure spring and pressure sensor's setting, can record wind generating set lightning strike condition, the technicians of being convenient for more maintain the inspection to the unit.

Description

Blade lightning protection assembly

Technical Field

The utility model relates to the technical field of lightning protection of wind driven generators, in particular to a blade lightning protection assembly.

Background

The wind generating set is a device for generating electricity by wind power; the wind driven generator is generally installed on open hills or mountains, and the height of the wind driven generator is generally higher than that of surrounding buildings, so that the wind driven generator is extremely easy to strike in thunderstorm weather, and great loss is caused.

For example, the patent with the bulletin number of CN210660454U discloses a wind generating set lightning protection device convenient to installation, including main horizontal pole, lightning rod, first screw, second screw, connection horizontal pole, first double-screw bolt, auxiliary fixing frame, third screw, open at the middle part of both ends about the main horizontal pole has first screw of horizontal direction, two parts about the main horizontal pole open along first screw symmetry have the second screw of horizontal direction, the one end welded fastening that the connection horizontal pole is close to the main horizontal pole has first double-screw of horizontal direction, the connection horizontal pole passes through first double-screw and second screw spiro union to be fixed, the one portion symmetrical welded fastening that the both ends are close to the main horizontal pole about the connection horizontal pole has the auxiliary fixing frame of horizontal direction, the position that one portion that the auxiliary fixing frame kept away from the connection horizontal pole corresponds the second screw runs through and opens the third screw that has the horizontal direction.

Although the lightning protection device is convenient to install, the lightning protection device cannot record lightning stroke conditions of a unit, technicians are inconvenient to know the lightning stroke conditions of the whole device, excessive overhaul can be caused, or the lightning protection device is not timely overhauled when damaged, and in order to solve the problems, a blade lightning protection assembly is provided.

Disclosure of Invention

The utility model aims to provide a blade lightning protection assembly for solving the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a blade lightning protection assembly includes

The wind power generator set comprises a support column, a generator box is arranged at the top end of the support column, the front end of the generator box is coaxially connected with a rotor, and a plurality of annularly distributed blades are arranged on the rotor along the side wall;

the lightning arrester comprises a lightning arrester box seat, a lightning rod is arranged on the lightning arrester box seat, a lead post is connected with the lightning arrester box seat, and a drainage wire is arranged in the lead post.

Preferably, the surface of the blade is uniformly sprayed with an aluminum coating.

Preferably, the lightning protection box seat is installed on the generator case, a pressing plate is arranged in the lightning protection box seat, and the bottom end of the lightning rod penetrates through the top surface of the lightning protection box seat and is fixedly connected with the top surface of the pressing plate.

Preferably, a pressing column is arranged in the middle of the bottom surface of the pressing plate downwards, a limiting cylinder matched with the pressing column in size is arranged on the inner bottom surface of the lightning protection box seat, and a pressure spring is arranged between the pressing column and the limiting cylinder.

Preferably, the lead post is arranged in the wind generating set, the upper end of the lead post penetrates through the generator case and is fixedly connected with the bottom surface of the lightning protection case seat, the upper end of the drainage lead sequentially penetrates through the bottom surface of the generator case, the pressing post and the pressing plate from bottom to top and is finally communicated with the bottom end of the lightning rod, and the lead post and the drainage lead are grounded.

Preferably, a pressure sensor is arranged on the top surface of the wall of the limiting cylinder, and a data recorder is arranged in the generator case and is electrically connected with the pressure sensor.

Preferably, the drainage wire is made of copper, and the pressing plate, the pressing post, the pressure spring and the lead post are all made of insulating materials.

Compared with the prior art, the utility model has the beneficial effects that:

1. the blade lightning protection assembly can carry out lightning protection on the wind generating set in a range through the lightning arrester, and damage to the blades of the wind generating set is avoided.

2. The blade lightning protection assembly can record the lightning strike condition of the wind generating set through the arrangement of the pressure spring and the pressure sensor, and is more convenient for technicians to maintain and check the set.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the utility model;

fig. 2 is a cross-sectional view of an inventive lightning protection structure;

fig. 3 is an enlarged view of the structure at a in the utility model.

In the figure: 1. a wind power generator set; 11. a support post; 12. a generator case; 13. a rotor; 14. a blade; 2. a lightning arrester; 21. a lightning rod; 22. a lightning protection box seat; 221. a pressing plate; 222. pressing a column; 223. a limiting cylinder; 224. a pressure spring; 225. a pressure sensor; 23. a lead post; 24. drainage leads.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the utility model thus described is only a part, but not all, of the utility models described. All other utility models obtained by those skilled in the art without making any creative effort based on the utility models in the present utility model are within the protection scope of the present utility model.

Referring to fig. 1-3, the present utility model provides a technical solution:

a blade lightning protection assembly includes

The wind generating set 1, the wind generating set 1 comprises a support 11, a generator case 12 is arranged at the top end of the support 11, a rotor 13 is coaxially connected to the front end of the generator case 12, and a plurality of annularly distributed blades 14 are arranged on the rotor 13 along the side wall;

the lightning arrester 2, the lightning arrester 2 includes the lightning arrester box base 22, install the lightning rod 21 on the lightning arrester box base 22, the connection of the lightning arrester box base 22 has lead post 23, there are drainage leads 24 in the lead post 23; the lightning arrester 2 can protect the wind generating set 1 in the range from lightning strike.

Wherein, the surface of blade 14 evenly sprays the aluminium coating, can further lightning protection to blade 14.

In this embodiment, the lightning rod box seat 22 is mounted on the generator case 12, the pressure plate 221 is disposed in the lightning rod box seat 22, the bottom end of the lightning rod 21 passes through the top surface of the lightning rod box seat 22 and is fixedly connected with the top surface of the pressure plate 221, and the base of the lightning rod 21 is fixed through the lightning rod box seat 22.

In addition, the middle part of the bottom surface of the pressure plate 221 is provided with a pressure column 222 downwards, the inner bottom surface of the lightning protection box seat 22 is provided with a limit cylinder 223 which is matched with the size of the pressure column 222, and a pressure spring 224 is arranged between the pressure column 222 and the limit cylinder 223; when lightning rod 21 is struck by lightning, the energy released by the lightning strike is pressed down to drive compression column 222 to press compression spring 224 in limiting cylinder 223.

Further, a lead column 23 is arranged in the wind generating set 1, the upper end of the lead column 23 penetrates through the generator case 12 and is fixedly connected with the bottom surface of the lightning protection box seat 22, the upper end of the drainage wire 24 sequentially penetrates through the bottom surface of the generator case 12, the pressing column 222 and the pressing plate 221 from bottom to top and is communicated with the bottom end of the lightning rod 21, and the lead column 23 and the drainage wire 24 are grounded; when lightning rod 21 is struck by lightning, current can be led to the ground through drainage wire 24, and damage to wind generating set 1 caused by lightning is avoided.

Meanwhile, the top surface of the wall of the limiting cylinder 223 is provided with a pressure sensor 225, a data recorder is arranged in the generator case 12 and is electrically connected with the pressure sensor 225, when the lightning rod 21 is pressed down by lightning, the pressure plate 221 is pressed down simultaneously, the pressure plate 221 moves down to press the pressure sensor 225, signals are transmitted to the data recorder to be recorded and transmitted to a terminal, the condition of the lightning of the wind turbine generator system 1 is recorded, and a technician can maintain and check according to the condition of the lightning.

Specifically, the drainage wire 24 is made of copper, and the pressing plate 221, the pressing post 222, the pressure spring 224 and the lead post 23 are all made of insulating materials, so that other electrical components are prevented from being damaged when being struck by lightning.

Finally, it should be noted that, in the embodiment, the pressure sensor 225, the data recorder and the like, the electronic components in the above components are all universal standard components or components known to those skilled in the art, the structure and principle thereof are all known to those skilled in the art through technical manuals or through routine experiment methods, all the electrical components are connected through wires at the idle position of the device, and the specific connection means should refer to the working principle that the electrical connection is completed by the sequence of working between the electrical components, which is known in the art.

When the blade lightning protection assembly is used, in severe weather, the lightning rod 21 in the lightning arrester 2 on the wind generating set 1 can discharge, then lightning current is led into the ground through the grounded drainage wire 24, so that the blade 14 of the wind generating set 1 is protected, meanwhile, when the lightning rod 21 is struck by lightning, the explosion energy can enable the lightning rod 21 to be pressed down, when the pressure sensor 225 is stressed, information can be transmitted to the data recorder and then transmitted to the terminal, the condition of the lightning strike of the wind generating set 1 is recorded, the condition of the lightning strike can be known by technicians conveniently, and maintenance is carried out according to the actual strike times.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be appreciated by persons skilled in the art that the utility model is not limited by what has been described hereinabove, and that the utility model and what has been described in the specification is merely illustrative of the preferred embodiments of the utility model and that the utility model is not limited thereto, but is capable of modification and variation without departing from the spirit and scope of the utility model, which is to be regarded as modified and improved. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a blade lightning protection subassembly which characterized in that: comprising

The wind power generation unit (1), the wind power generation unit (1) comprises a support column (11), a generator case (12) is arranged at the top end of the support column (11), a rotor (13) is coaxially connected to the front end of the generator case (12), and a plurality of annularly distributed blades (14) are arranged on the rotor (13) along the side wall;

lightning arrester (2), lightning arrester (2) include lightning-arrest case seat (22), install lightning rod (21) on lightning-arrest case seat (22), be connected with lead post (23) in lightning-arrest case seat (22), be equipped with drainage wire (24) in lead post (23).

2. The blade lightning protection assembly of claim 1, wherein: the surface of the blade (14) is uniformly sprayed with an aluminum coating.

3. The blade lightning protection assembly of claim 1, wherein: the lightning protection box seat (22) is installed on the generator case (12), a pressing plate (221) is arranged in the lightning protection box seat (22), and the bottom end of the lightning rod (21) penetrates through the top surface of the lightning protection box seat (22) and is fixedly connected with the top surface of the pressing plate (221).

4. A blade lightning protection assembly according to claim 3, wherein: the middle part of the bottom surface of the pressing plate (221) is provided with a pressing column (222) downwards, the inner bottom surface of the lightning protection box seat (22) is provided with a limiting cylinder (223) with the size matched with that of the pressing column (222), and a pressure spring (224) is arranged between the pressing column (222) and the limiting cylinder (223).

5. The blade lightning protection assembly of claim 4, wherein: the lead column (23) is arranged in the wind generating set (1), the upper end of the lead column (23) penetrates through the generator case (12) and is fixedly connected with the bottom surface of the lightning protection box seat (22), the upper end of the drainage wire (24) sequentially penetrates through the bottom surface of the generator case (12) from bottom to top, the pressing column (222) and the pressing plate (221) are communicated with the bottom end of the lightning rod (21), and the lead column (23) and the drainage wire (24) are grounded.

6. The blade lightning protection assembly of claim 5, wherein: the top surface of the cylinder wall of the limit cylinder (223) is provided with a pressure sensor (225), and a data recorder is arranged in the generator case (12) and is electrically connected with the pressure sensor (225).

7. The blade lightning protection assembly of claim 5, wherein: the drainage lead (24) is made of copper, and the pressing plate (221), the pressing column (222), the pressure spring (224) and the lead column (23) are all made of insulating materials.