CN205918548U - Lightning protection blade - Google Patents
Lightning protection blade Download PDFInfo
- Publication number
- CN205918548U CN205918548U CN201620945283.1U CN201620945283U CN205918548U CN 205918548 U CN205918548 U CN 205918548U CN 201620945283 U CN201620945283 U CN 201620945283U CN 205918548 U CN205918548 U CN 205918548U
- Authority
- CN
- China
- Prior art keywords
- blade
- arrester
- lightning
- blade body
- protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
Abstract
The utility model discloses a lightning protection blade, include blade body (1), be fixed in arrester (2) on blade body (1) sharp upper portion and switch on downlead (3) of being fixed in blade body (1) upper portion with arrester (2), arrester (2) to blade body (1) root top do not sets firmly two the slot that the structure is the same (4), slot (4) surface is equipped with high temperature resistance coating layer (5), it has conducting material (6) still to fill in slot (4). The utility model has the characteristics of simple structure, simple to operate connects the sudden strain of a muscle area through packing conducting material in two slots that are the distribution of V type at the blade on the surface about the arrester, can effectively improve to connect to dodge, effectively reduces the risk that the blade apex received the thunderbolt harm, and lightning proof effect is better.
Description
Technical field
This utility model belongs to wind power generation lightning protection field and in particular to a kind of lightning-protection blade.
Background technology
In recent years, it is continuously increased with wind power industry installation amount, because thunder and lightning leads to turbines vane broken by lightning ratio be in
The gesture of cumulative year after year.It is known that blade is wind power generating set is subject to the part that is struck by lightning most, show according to related data, 1 year
Interior every 300 blades just have 1 to be struck by lightning, and it is 70% about that current blade connects sudden strain of a muscle rate, but effectively connect sudden strain of a muscle rate and be only 35% left side
The right side, invalid connect sudden strain of a muscle rate up to more than 60%, cause blade injury and main cause that blade bursts be invalid to connect sudden strain of a muscle.For foundation
For the wind energy turbine set on coastal high mountain or island, with a varied topography, thunderstorm day is more, and wind wheel blade lightning protection becomes a difficult problem.
There is no targeted design to wind generator set blade lightning protection at present, prior art lightning protection measures are directly to be installed on arrester
On blade or in front of the blade edge pastes long metal strips from blade tip to blade root, and thunder-strike current is introduced through wheel hub, cabin and pylon
Greatly, but effectively connect sudden strain of a muscle rate relatively low, lightning protection effect bad it is impossible to meet lightning protection demand.
Utility model content
It is not enough that this utility model is directed to prior art, provides that a kind of structure is simple, easy for installation, it is high, anti-effectively to connect sudden strain of a muscle rate
The good lightning-protection blade of thunder effect.
The technical scheme that this utility model provides is: a kind of lightning-protection blade, including blade body, is fixed on blade body point
The arrester on top and the downlead being fixed on blade body top with arrester conducting, described arrester is to described blade body
Root top is respectively equipped with two structure identical grooves, and described flute surfaces are provided with high-temperaure coating, and filling in described groove is led
Electric material.
Further, described two grooves are in that V-shaped is distributed.
Further, described conductive material height and surface roughness are consistent with described blade body surface.
Further, described conductive material is conductive metal material or quasiconductor conductive material.
Further, described exotic material heatproof is not less than 200 degrees Celsius.
This utility model is had the advantage that compared to existing technology using said structure
1. structure is simple, easy for installation, by being in fill out in two grooves of V-shaped distribution over the paddle with regard to arrester
Fill conductive material, can effectively improve and connect sudden strain of a muscle and connect sudden strain of a muscle area, effectively reduce the risk that blade tip is subject to lightning damage, lightning protection effect is more
Good.
2. conductive material height and surface roughness are consistent with blade body surface, and leaf appearance is attractive in appearance.
3. its tolerable temperature of the high-temperaure coating being provided with groove is high, is suitable for the wind power generating set of various adverse circumstances
Blade lightning protection.
Brief description
Fig. 1 is this lightning-protection blade overall structure diagram.
Fig. 2 is the a-a of Fig. 1 to profile.
As shown in the figure: 1, blade body, 2, arrester, 3, downlead, 4, groove, 5, exotic material, 6, conductive material.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further detail.
As shown in Figure 1, the utility model discloses a kind of lightning-protection blade includes blade body 1, is fixed on blade body 1
The arrester 2 on sharp top and be fixed on the downlead 3 on blade body 1 top with arrester 2 conducting, described arrester 2 is to described
1 top of blade body is installed with two structure identical grooves 4 respectively, and described groove 4 surface is provided with high-temperaure coating (5),
It is also filled with conductive material 6 in described groove 4.
Further, described two grooves 4 are in that V-shaped is distributed with regard to arrester 2.
Further, described conductive material 6 height and surface roughness are consistent with described blade body 1 surface.
Further, described conductive material 6 is conductive metal material or quasiconductor conductive material.
Further, described exotic material 5 heatproof is not less than 200 degrees Celsius.
To during wind generator set blade lightning protection, this lightning-protection blade is installed and replaces the former common blade of wind power generating set,
When thunderbolt occurs, arrester 2 is guided lightning current into own circumference region and is carried out connecing sudden strain of a muscle electric discharge, and conducts thunder and lightning by downlead 3
Stream, prevents the blade tip of blade body 1 from damaging because of thunderbolt, the conduction material of filling in groove 4 fixed in blade body 1, groove 4
Material 6 can effectively facilitate arrester 2 and form upward leader, make this lightning-protection blade effectively connect sudden strain of a muscle area and significantly increase, effectively connect sudden strain of a muscle rate
Significantly improve.
Above this utility model and embodiments thereof are described, this description does not have restricted, shown in accompanying drawing
Be also one of embodiment of the present utility model, actual structure is not limited thereto.If sum it up, this area
Those of ordinary skill is enlightened by it, in the case of creating objective without departing from this utility model, without creative design with
The similar frame mode of this technical scheme and embodiment, all should belong to protection domain of the present utility model.
Claims (5)
1. a kind of lightning-protection blade, including blade body (1), be fixed on blade body (1) point top arrester (2) and with connect sudden strain of a muscle
Device (2) conducting be fixed on blade body (1) top downlead (3) it is characterised in that: described arrester (2) is to described blade
Body (1) root top is installed with two structures identical groove (4) respectively, and described groove (4) surface is provided with high-temperaure coating
(5), it is also filled with conductive material (6) in described groove (4).
2. a kind of lightning-protection blade according to claim 1 it is characterised in that: described two grooves (4) are with regard to arrester (2)
It is distributed in V-shaped.
3. a kind of lightning-protection blade according to claim 1 it is characterised in that: described conductive material (6) height and surface are thick
Rugosity is consistent with described blade body (1) surface.
4. a kind of lightning-protection blade according to claim 1 it is characterised in that: described conductive material (6) be metallic conduction material
Material or quasiconductor conductive material.
5. a kind of lightning-protection blade according to claim 1 it is characterised in that: described high-temperaure coating (5) heatproof is not less than
200 degrees Celsius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620945283.1U CN205918548U (en) | 2016-08-25 | 2016-08-25 | Lightning protection blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620945283.1U CN205918548U (en) | 2016-08-25 | 2016-08-25 | Lightning protection blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205918548U true CN205918548U (en) | 2017-02-01 |
Family
ID=57869256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620945283.1U Expired - Fee Related CN205918548U (en) | 2016-08-25 | 2016-08-25 | Lightning protection blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205918548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425811A (en) * | 2018-06-19 | 2018-08-21 | 华润电力风能（汕头）有限公司 | A kind of fan blade lightning-protection system |
-
2016
- 2016-08-25 CN CN201620945283.1U patent/CN205918548U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425811A (en) * | 2018-06-19 | 2018-08-21 | 华润电力风能（汕头）有限公司 | A kind of fan blade lightning-protection system |
| CN108425811B (en) * | 2018-06-19 | 2024-04-12 | 华润电力风能（汕头）有限公司 | Lightning protection system for fan blade |
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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: 20170201 Termination date: 20170825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |