CN205744280U - A kind of wind electricity blade lightning protection structure - Google Patents
A kind of wind electricity blade lightning protection structure Download PDFInfo
- Publication number
- CN205744280U CN205744280U CN201620428729.3U CN201620428729U CN205744280U CN 205744280 U CN205744280 U CN 205744280U CN 201620428729 U CN201620428729 U CN 201620428729U CN 205744280 U CN205744280 U CN 205744280U
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- Prior art keywords
- blade
- blade tip
- metal
- lightning
- basis
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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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- Wind Motors (AREA)
Abstract
nullThe utility model discloses a kind of wind electricity blade lightning protection structure，Blade tip extension is embedded with lightning-arrest cable，And Reasonable Orientation is taken shelter from the thunder the cable and damper ends metal contiguous block away from blade tip in blade tip extension，Make metal contiguous block and basis blade lightning-protection metal blade tip exhibition to and tangential have certain overlapping region，By connecting blade tip extension and basis blade，Metal connecting piece is utilized to connect metal contiguous block and basis blade aluminum blade tip，Realize blade extension and basis blade tip leads the path that lightning current transmits，When thunderbolt occurs，The metallic aluminium blade tip of blade tip extension receives thunder-strike current，Electric current is through being embedded in the lightning-arrest cable within blade extension，The metal blade tip of basis blade it is transmitted to along the bolt in metal contiguous block，Lightning current conduction is gone down by the lightning-protection system through basis blade again，Can effectively solve blade and extend a lightning protection difficult problem for process，Avoid wind electricity blade by broken by lightning.
Description
Technical field
This utility model relates to a kind of wind electricity blade lightning protection structure, particularly relates to one and adds blade tip prolongation
The lightning protection structure of the wind electricity blade of section.
Background technology
Owing to the available wind energy turbine set of China is limited, good wind field has been developed complete, initially opens
The wind energy turbine set sent out is due to backward in technique, and blade construction design is unreasonable, and size is less, causes generating efficiency
On the low side, in order to improve the generating efficiency of blade, technical staff is proposed and is improved by prolongation blade dimensions
The generating efficiency of wind energy conversion system.Development, blade tip extension position has just been started owing to Axis Wind Turbine With A Tip Vane extends technology
Shocking preventing technology immature, wind energy conversion system through blade tip extend after size become bigger, although generating efficiency carries
Gao Liao, but it is easier to be struck by lightning, if thunder-strike current can not be conducted after being struck by lightning by blade in time
Go out, may result in blade construction and destroyed, affect aeroperformance and the safety of structure of blade, gently
Then need shutdown maintenance, heavy then need to be replaced whole blade, bring huge to wind-powered electricity generation enterprise
Economic loss.
In order to ensure blade tip extend after pneumatic equipment blades thunderbolt in the case of safe operation, need blade
Blade tip extension part carries out lightning Protection Design.The most domestic lightning Protection Design kind to wind electricity blade has a lot,
But the lightening arresting method of the wind electricity blade after extending blade tip is the most little.Therefore a kind of operation letter is designed in exploitation
Developer blade is actively promoted effect by the wind electricity blade lightning protection structure single, with low cost, function is professional.
Utility model content
This utility model provides a kind of by the pre-buried lightning conducter of blade tip extension, by bolt by blade
Structure that the metal blade tip of extension links into an integrated entity with former vaned metal blade tip is in order to profit
With the entirety that former vaned lightning protection system connects into, thunder-strike current is dredged away with lightning protection system, prevent
Blade tip extension is formed after being struck by lightning and damages.
To achieve these goals, this utility model adopts the following technical scheme that
A kind of wind electricity blade lightning protection structure, including basis blade and blade tip extension, it is characterised in that institute
Stating basis blade and include basis blade metal blade tip, described blade tip extension includes extension main body and prolongation
Section metal blade tip, the free end of described extension main body arranges described extension metal blade tip, described prolongation
The tail end of section main body is provided with pockets, is embedded with lightning-arrest cable and metal connects in described extension main body
Connecing block, described lightning-arrest cable one end is connected with extension metal blade tip, and the other end is connected with metal contiguous block；
Described basis blade and blade tip extension link together, and described basis blade metal blade tip is completely accommodated in
In the pockets of described blade tip extension tail end, the metal contiguous block in described extension main body and basis
Blade metal blade tip is conductively connected.
Preferably, described lightning-arrest cable is by the lightning-protection system of the lightning-protection system of blade tip extension with basis blade
Connect.
Preferably, it is connected by metal connecting piece between described metal contiguous block with basis blade metal blade tip
Together, a current conductive path is formed.
Preferably, the sidewall of the pockets of described blade tip extension tail end is provided with through hole, described gold
Belong to connector and will pass through metal described metal contiguous block and basis blade metal blade tip through described through hole
Connector links together.
Preferably, described metal connecting piece is dormant bolt.
Preferably, described basis blade and blade tip extension are linked together by mucigel.
Preferably, described basis blade metal blade tip is aluminum blade tip.
Wind electricity blade lightning protection structure of the present utility model, connects at the pre-buried lightning-protective cable of blade tip extension and metal
Connect block, cable is connected with metal contiguous block, close on blade tip position pre-buried aluminum blade tip at extension, connect
Lightning-protective cable and aluminum blade tip, after being connected with basis blade by blade tip extension, at the vertical leaf in region overlapped
Screwed hole is opened on sheet surface, and screwed hole extends to basis blade aluminum blade tip through metal contiguous block, uses countersunk head
Bolt connects metal contiguous block and basis blade aluminum blade tip, it is achieved blade extension and basis blade tip lead thunder and lightning
The path of stream transmission.Described blade tip extension is connected by vacuum suction or hands paste with basis blade
Process forming.The position of described metal contiguous block needs to carry out Reasonable Orientation in technical process so that
Metal contiguous block take shelter from the thunder with basis, basis blade tip aluminum blade tip exhibition to and tangential have certain district that overlaps
Territory.
Compared with the existing technology, wind electricity blade lightning protection structure of the present utility model has an advantage will be apparent below:
By connecting blade tip extension and basis blade, the metal being connected with the lightning-protective cable in blade tip extension
Contiguous block and original blade aluminum blade tip link together, it is achieved blade extension and basis blade tip lead lightning current
The path of transmission, when thunderbolt occurs, the metallic aluminium blade tip of blade tip extension receives thunder-strike current, electricity
Stream, through being embedded in the lightning-arrest cable within blade extension, is transmitted to along the bolt in metal contiguous block
Basis blade metal blade tip, then through basis blade lightning-protection system by lightning current conduction go down, this
The lightning protection structure of the offer of utility model have that enforcement is simple, operation easier is little and reliability high feature,
Can effectively solve blade and extend a lightning protection difficult problem for process, it is to avoid wind electricity blade is by broken by lightning.
Accompanying drawing explanation
Fig. 1. Axis Wind Turbine With A Tip Vane extension and basis blade connection diagram；
Fig. 2. Axis Wind Turbine With A Tip Vane extension lightning protection structure schematic diagram；
Fig. 3. for the Section A-A schematic diagram in Fig. 2.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, the most also
For embodiment, this utility model is further described.It should be noted that the following stated is only this reality
With novel preferred embodiment, the most therefore limit protection domain of the present utility model.
It should be noted that the implementation not illustrating in accompanying drawing or describing, for general in art
Logical form known to technical staff.Additionally, the direction term mentioned in following example, such as " on ",
D score, "front", "rear", "left", "right", " top ", " end " etc., be only the direction with reference to accompanying drawing.
Therefore, the direction term of use is used to illustrate not for limiting this utility model.
As it is shown in figure 1, be the generating efficiency improving wind energy conversion system, wind energy conversion system basis blade 7 adds
Blade tip extension 5, uses vacuum suction or hands to stick with paste technique between basis blade 7 and blade tip extension 5
Shaping, improve the generating efficiency of wind energy conversion system by extending blade dimensions, wind energy conversion system is after blade tip extends
It is bigger that size becomes, although generating efficiency improves, but is easier to be struck by lightning, and blade is struck by lightning
If can not in time thunder-strike current being conducted afterwards, may result in blade construction and being destroyed, affecting leaf
The aeroperformance of sheet and safety of structure, the most then need shutdown maintenance, heavy then need to carry out whole blade
Change, bring huge economic loss to wind-powered electricity generation enterprise.
As in figure 2 it is shown, this utility model provides and a kind of increases the wind electricity blade lightning protection after blade tip extension
Structure, the most pre-buried lightning-arrest cable 2 of blade tip extension 5, metal contiguous block 3, closing on leaf tip
Position, uses traditional method pre-buried extension metal blade tip 1 before matched moulds, by pre-buried lightning-arrest cable 2 one
End is connected with extension metal blade tip 1, and the other end is connected with metal contiguous block 3.Metal contiguous block 3
Localization method is so that metal contiguous block 3 and the aluminum blade tip 6 of basis blade 7 exhibition to and tangential have one
The position of fixed overlapping region.
As it is shown on figure 3, after connecting blade tip extension 5 and basis blade 7 by technique for sticking, at blade
The region overlapped, the upper vertical blade surface at metal contiguous block 3 opens screwed hole, and screwed hole is through gold
Belong to contiguous block to extend to, inside the blade aluminum blade tip of basis, use dormant bolt to connect metal contiguous block 3 and base
Plinth blade aluminum blade tip 6, it is achieved blade tip extension 5 and basis blade aluminum blade tip 6 lead the logical of lightning current transmission
Road, when thunderbolt occurs, the metallic aluminium blade tip of blade tip extension 5 receives thunder-strike current, and electric current passes through
Pre-buried lightning-arrest cable 2, is transmitted to basis blade aluminum leaf along the dormant bolt 4 in metal contiguous block 3
Point 6, then through former vaned lightning-protection system, lightning current conduction is gone down.
By above-described embodiment, achieve the purpose of this utility model completely effectively.The technology in this field
It is interior that personnel are appreciated that this utility model includes but not limited to described in accompanying drawing and above detailed description of the invention
Hold.Although this utility model is just it is now recognized that practicality and preferred embodiment the most illustrates, but should know
Road, this utility model is not limited to the disclosed embodiments, any without departing from function of the present utility model and
The amendment of structural principle is intended to be included in the scope of claims.
Claims (7)
1. a wind electricity blade lightning protection structure, including basis blade and blade tip extension, it is characterised in that
Described basis blade includes basis blade metal blade tip, and described blade tip extension includes extension main body and prolongs
Long section metal blade tip, the free end of described extension main body arranges described extension metal blade tip, described in prolong
The tail end of long section main body is provided with pockets, is embedded with lightning-arrest cable and metal in described extension main body
Contiguous block, described lightning-arrest cable one end is connected with extension metal blade tip, and the other end is with metal contiguous block even
Connect；Described basis blade and blade tip extension link together, and described basis blade metal blade tip holds completely
Be contained in the pockets of described blade tip extension tail end, the metal contiguous block in described extension main body with
Basis blade metal blade tip is conductively connected.
Wind electricity blade lightning protection structure the most according to claim 1, it is characterised in that described lightning conducter
The lightning-protection system of the lightning-protection system of blade tip extension with basis blade is connected by cable.
Wind electricity blade lightning protection structure the most according to claim 1, it is characterised in that described metal is even
Connect and linked together by metal connecting piece between block and basis blade metal blade tip, form an electric current and pass
Guiding path.
Wind electricity blade lightning protection structure the most according to claim 3, it is characterised in that described blade tip prolongs
Being provided with through hole on the sidewall of the pockets of long section, described metal connecting piece passes described through hole by described
Linked together by metal connecting piece between metal contiguous block and basis blade metal blade tip.
Wind electricity blade lightning protection structure the most according to claim 3, it is characterised in that described metal is even
Fitting is dormant bolt.
Wind electricity blade lightning protection structure the most according to claim 1, it is characterised in that described basis leaf
Sheet and blade tip extension are linked together by mucigel.
Wind electricity blade lightning protection structure the most according to claim 1, it is characterised in that described basis leaf
Sheet metal blade tip is aluminum blade tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428729.3U CN205744280U (en) | 2016-05-12 | 2016-05-12 | A kind of wind electricity blade lightning protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620428729.3U CN205744280U (en) | 2016-05-12 | 2016-05-12 | A kind of wind electricity blade lightning protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205744280U true CN205744280U (en) | 2016-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620428729.3U Expired - Fee Related CN205744280U (en) | 2016-05-12 | 2016-05-12 | A kind of wind electricity blade lightning protection structure |
Country Status (1)
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|---|---|
| CN (1) | CN205744280U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288829A (en) * | 2017-08-05 | 2017-10-24 | 中国科学院工程热物理研究所 | A kind of pneumatic equipment bladess lightning receptor design method |
| CN108691734A (en) * | 2017-04-10 | 2018-10-23 | 株洲时代新材料科技股份有限公司 | Device is dodged for connecing for wind electricity blade and comprising its wind electricity blade |
| CN111734578A (en) * | 2020-07-01 | 2020-10-02 | 中材科技风电叶片股份有限公司 | Megawatt wind turbine blade, assembling method and manufacturing method thereof, and manufacturing method of blade tip |
| CN111794916A (en) * | 2020-07-17 | 2020-10-20 | 中科国风检测（天津）有限公司 | Blade extension lightning protection wire connection structure and lightning protection device |
| CN113323822A (en) * | 2021-07-16 | 2021-08-31 | 上海风雷盾科技有限公司 | Lightning protection device of wind power blade |
| CN115234432A (en) * | 2022-08-01 | 2022-10-25 | 大连双瑞风电叶片有限公司 | Blade extension part mounting method and structure |
-
2016
- 2016-05-12 CN CN201620428729.3U patent/CN205744280U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108691734A (en) * | 2017-04-10 | 2018-10-23 | 株洲时代新材料科技股份有限公司 | Device is dodged for connecing for wind electricity blade and comprising its wind electricity blade |
| CN108691734B (en) * | 2017-04-10 | 2020-08-21 | 株洲时代新材料科技股份有限公司 | Lightning receiving device for wind power blade and wind power blade comprising same |
| CN107288829A (en) * | 2017-08-05 | 2017-10-24 | 中国科学院工程热物理研究所 | A kind of pneumatic equipment bladess lightning receptor design method |
| CN111734578A (en) * | 2020-07-01 | 2020-10-02 | 中材科技风电叶片股份有限公司 | Megawatt wind turbine blade, assembling method and manufacturing method thereof, and manufacturing method of blade tip |
| CN111794916A (en) * | 2020-07-17 | 2020-10-20 | 中科国风检测（天津）有限公司 | Blade extension lightning protection wire connection structure and lightning protection device |
| CN113323822A (en) * | 2021-07-16 | 2021-08-31 | 上海风雷盾科技有限公司 | Lightning protection device of wind power blade |
| CN115234432A (en) * | 2022-08-01 | 2022-10-25 | 大连双瑞风电叶片有限公司 | Blade extension part mounting method and structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20200512 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |