CN212272471U - Wind-powered electricity generation blade branch line and thread connection structure that takes shelter from thunder - Google Patents
Wind-powered electricity generation blade branch line and thread connection structure that takes shelter from thunder Download PDFInfo
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- CN212272471U CN212272471U CN202021064739.6U CN202021064739U CN212272471U CN 212272471 U CN212272471 U CN 212272471U CN 202021064739 U CN202021064739 U CN 202021064739U CN 212272471 U CN212272471 U CN 212272471U
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- lightning
- arrest
- branch line
- trailing edge
- thread
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model relates to a wind power generation technical field discloses a wind-powered electricity generation blade lightning-arrest branch line and thread connection structure, including the trailing edge web, trailing edge web inboard is equipped with lightning-arrest thread, and the trailing edge web outside is equipped with lightning-arrest branch line, and the lightning-arrest post of installation on the trailing edge web, lightning-arrest post include lightning-arrest post main part, bayonet socket and counter bore, and bayonet socket upper end cross-under has lightning-arrest thread, and the counter bore is inside to have the nose through bolted connection, and the end of lightning-arrest branch line compresses tightly with the nose, and lightning-arrest thread cross-under has the bayonet socket, mounting. The utility model does not need to punch on the web plate at the rear edge, and avoids the difficulty of punching the lightning protection branch line; the connection mode of the lightning-protection branch line and the main line is simple and convenient, the connection time is shortened, and the production efficiency is improved; the lightning protection device can avoid the problems of breakdown and the like caused by the bending of the lightning conductor, has good lightning protection effect, reduces the maintenance cost and prolongs the service life of the blade.
Description
Technical Field
The utility model relates to a wind power generation technical field specifically is a lightning-arrest branch line of wind-powered electricity generation blade and thread connection structure.
Background
Lightning protection is one of the key issues in the reliability of wind turbine generators, and the most dangerous of the wind turbine components are the rotor blades. With the increase of the height of the unit and the generated power, the probability of lightning strike on the blade is also increased in proportion, so that the design of a lightning protection system of the wind turbine blade is particularly important.
At present, a lightning protection system is mainly characterized in that a main lightning protection line is arranged on a web plate, and then a branch lightning protection line is connected with the main lightning protection line before a shell is assembled. The existing connection mode of the main lightning protection line and the branch lightning protection line is as follows: the web is perforated, the lightning branch is threaded through the holes, and then the two lightning conductors are joined together using a joining clip. The process of the mode is complex, the lightning protection branch line is not easy to penetrate out and is easy to bend, electric arcs are easy to form when the lightning protection branch line is struck by lightning, the lightning protection line is broken through, and the lightning protection effect is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wind-powered electricity generation blade is had a lightning branch line and thread connection structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a wind-powered electricity generation blade branch line and thread connection structure that takes shelter from thunder, includes the trailing edge web, trailing edge web inboard is equipped with the main line that takes shelter from thunder, and the trailing edge web outside is equipped with the branch line that takes shelter from thunder, installs the post that takes shelter from thunder on the trailing edge web, and the post that takes shelter from thunder includes post main part, bayonet socket and counter bore, and the cross-under of bayonet socket upper end has the main line that takes shelter from thunder, and the counter bore is inside to have the line nose through bolted connection, and the end of the branch line that takes.
As a further aspect of the present invention: the rear edge web plate comprises a web plate glass fiber reinforced plastic layer and a web plate core material layer, and a plurality of layers of biaxial cloth are symmetrically laid on the web plate core material layer from top to bottom to form a lightning protection enhancement layer.
As a further aspect of the present invention: and a plurality of layers of double-shaft cloth are laid on the main lightning conductor to form a main lightning conductor fixing layer.
As a further aspect of the present invention: the lightning protection column main body is a cylinder or a cuboid, and the height of the lightning protection column main body is consistent with the thickness of the rear edge web plate.
As a further aspect of the present invention: the lightning protection column is an aluminum column or a copper column, is directly prefabricated on the rear edge web and is integrally poured and molded with the rear edge web.
As a further aspect of the present invention: and a washer is also arranged in the middle of the bolt.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the web plate at the rear edge is not required to be perforated, so that the difficulty of perforation of the lightning protection branch line is avoided;
(2) the connection mode of the lightning-protection branch line and the main line is simple and convenient, the connection time is shortened, and the production efficiency is improved;
(3) the lightning protection device can avoid the problems of breakdown and the like caused by the bending of the lightning conductor, has good lightning protection effect, reduces the maintenance cost and prolongs the service life of the blade.
Drawings
Fig. 1 is a schematic structural diagram of a connection structure of a lightning branch line and a main line of a wind power blade.
Fig. 2 is a schematic structural diagram of a lightning protection column in a connection structure of a lightning protection branch line and a main line of a wind power blade.
In the figure: 1-main lightning conductor, 2-branch lightning conductor, 3-web glass fiber reinforced plastic layer, 4-reinforcing lightning conductor layer, 5-web core material layer, 6-main lightning conductor fixing layer, 7-lightning conductor, 71-main lightning conductor body, 72-bayonet, 73-counter bore, 8-wire nose, 9-bolt and 10-gasket.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Example 1
Referring to fig. 1 and 2, in the embodiment of the present invention, a wind turbine blade lightning branch line and main line connection structure includes a trailing edge web, the trailing edge web includes a web glass fiber reinforced plastic layer 3 and a web core 5, a plurality of layers of biaxial cloth are symmetrically laid on the web core 5 to form a lightning protection enhancement layer 4, a lightning protection main line 1 is disposed inside the trailing edge web, a plurality of layers of biaxial cloth are laid on the lightning protection main line 1 to form a main lightning protection line fixing layer 6, a lightning protection branch line 2 is disposed outside the trailing edge web, a lightning protection column 7 is mounted on the trailing edge web, the lightning protection column 7 is made of an aluminum column or a copper column, is directly prefabricated on the trailing edge web, and is integrally cast with the trailing edge web, the lightning protection column 7 includes a lightning protection column main body 71, a bayonet 72 and a counter bore 73, the lightning protection column main body 71 is a cylinder or a cuboid, has a height consistent with the thickness of the trailing edge web, the main, the inside of the counter bore 73 is connected with a wire nose 8 through a bolt 9, and the end of the lightning protection branch wire 2 is tightly pressed by the wire nose 8.
A washer 10 is arranged between the bolt 9 and the wire nose 8.
The specific installation operation mode is as follows:
1. when the glass fiber reinforced plastic layer 3 of the web plate at the rear edge is laid, cutting the glass fiber cloth at the position where the lightning protection column 7 is placed in advance;
2. when the web core material layer 5 is laid, a hole is vertically cut at the position where the lightning protection column 7 is placed by a paper cutter;
3. between the web glass fiber reinforced plastic layer 3 and the web core material layer 5, a plurality of layers of biaxial cloth are symmetrically laid on the core material up and down by taking a lightning protection point as a center to serve as lightning protection enhancement layers 4;
4. embedding the lightning protection column main body 71 in the reserved hole, wherein before embedding, the bottom surface of the lightning protection column 7 needs to be isolated and sealed, so that the influence of resin attached to the bottom surface on lightning protection is prevented, and meanwhile, the resin is prevented from entering the counter bore 73;
5. when the main lightning conductor 1 is laid, the main lightning conductor 1 penetrates through the bayonet 72 on the lightning post 7 and is tightly pressed by a tool such as a wire pressing pliers and the like, so that the main lightning conductor 1 is connected with the lightning post 7;
6. paving a plurality of layers of double-shaft cloth on the main lightning conductor 1 to serve as a main lightning conductor fixing layer 6 for fixing the main lightning conductor 1 and preventing the lightning conductor and the lightning column from being exposed in the air;
7. the manufacturing of the web is completed by the processes of laying auxiliary materials, vacuum infusion, pre-curing and the like;
8. when the blade is closed, the wire nose 8 at the tail end of the lightning branch 2 is fixed on the lightning post 7 by the bolt 9 and the gasket 10, and the connection between the lightning branch 2 and the lightning post 7 is completed.
The utility model discloses a theory of operation is: the lightning protection main line 1 is positioned on the inner side of the web plate of the trailing edge, the lightning protection branch line 2 is positioned on the outer side of the web plate of the trailing edge, the web plate of the trailing edge comprises a web plate glass fiber reinforced plastic layer 3 and a web plate core material layer 5, in order to improve the strength of a lightning protection position on the web plate, a plurality of layers of biaxial cloth are symmetrically laid on the core material of the area from top to bottom to form a lightning protection reinforcing layer 4, a plurality of layers of biaxial cloth are laid on a lightning protection main line 1 to be used as a main lightning protection line fixing layer 6, the lightning protection column 7 is composed of a lightning protection column main body 71, a bayonet 72 and a counter bore 73, the lightning protection column main body 71 can be designed into a cylinder or a cuboid, the height of the lightning protection column main body is consistent with the thickness of a rear edge web plate when in use, a counter bore 73 is reserved on the lightning protection column 7 and used for installing the bolt 9, the lightning protection column 7 can be an aluminum column or a copper column, is directly prefabricated on a rear edge web plate and is integrally poured and molded with the rear edge web plate, and the sealing of the bottom surface and the counter bore needs to be paid attention to during pouring. The main lightning conductor 1 passes through the bayonet 72, the main lightning conductor and the post are pressed tightly by a tool such as a wire crimper, the nose 8 is fixed on the post 7 by using the bolt 9 and the gasket 10, and the connection between the branch lightning conductor 2 and the post 7 is completed.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a wind-powered electricity generation blade lightning-arrest branch line and thread connection structure, includes the trailing edge web, trailing edge web inboard is equipped with lightning-arrest thread (1), the trailing edge web outside is equipped with lightning-arrest branch line (2), a serial communication port, installation lightning-arrest post (7) on the trailing edge web, lightning-arrest post (7) are including lightning-arrest post main part (71), bayonet socket (72) and counter bore (73), bayonet socket (72) upper end cross-under has lightning-arrest thread (1), counter bore (73) inside is connected with wire nose (8) through bolt (9), the end of lightning-arrest branch line (2) is compressed tightly with wire nose (8), lightning-arrest thread (1) cross-under has bayonet socket (72), installation packing ring (10) between bolt (9) and wire nose.
2. The connection structure of the lightning branch line and the main line of the wind power blade as claimed in claim 1, wherein the lightning protection column main body (71) is a cylinder or a cuboid, and the height of the lightning protection column main body is consistent with the thickness of the web plate at the rear edge.
3. The connection structure of the wind power blade lightning branch line and the main line is characterized in that the lightning protection column (7) is an aluminum column or a copper column, is prefabricated on the web plate of the rear edge directly and is formed by pouring with the web plate of the rear edge integrally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021064739.6U CN212272471U (en) | 2020-06-11 | 2020-06-11 | Wind-powered electricity generation blade branch line and thread connection structure that takes shelter from thunder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021064739.6U CN212272471U (en) | 2020-06-11 | 2020-06-11 | Wind-powered electricity generation blade branch line and thread connection structure that takes shelter from thunder |
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| CN212272471U true CN212272471U (en) | 2021-01-01 |
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| CN202021064739.6U Active CN212272471U (en) | 2020-06-11 | 2020-06-11 | Wind-powered electricity generation blade branch line and thread connection structure that takes shelter from thunder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879248A (en) * | 2021-03-23 | 2021-06-01 | 国电联合动力技术(保定)有限公司 | Lightning protection structure for lightning protection branch point and pre-bending position of wind power blade and manufacturing method |
| CN112901428A (en) * | 2021-03-23 | 2021-06-04 | 国电联合动力技术(保定)有限公司 | Manufacturing method of lightning protection system of wind power blade |
-
2020
- 2020-06-11 CN CN202021064739.6U patent/CN212272471U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112879248A (en) * | 2021-03-23 | 2021-06-01 | 国电联合动力技术(保定)有限公司 | Lightning protection structure for lightning protection branch point and pre-bending position of wind power blade and manufacturing method |
| CN112901428A (en) * | 2021-03-23 | 2021-06-04 | 国电联合动力技术(保定)有限公司 | Manufacturing method of lightning protection system of wind power blade |
| CN112879248B (en) * | 2021-03-23 | 2024-03-22 | 国电联合动力技术(保定)有限公司 | Wind power blade lightning-protection branch point and pre-bending position lightning-protection structure and manufacturing method |
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Address after: 071051 No.88, Fengfeng street, high tech Development Zone, Baoding City, Hebei Province Patentee after: Guoneng United Power Technology (Baoding) Co.,Ltd. Address before: 071051 No.88, Fengfeng street, high tech Development Zone, Baoding City, Hebei Province Patentee before: GUODIAN UNITED POWER TECHNOLOGY (BAODING) Co.,Ltd. |