CN210440167U - Lightning protection system for wind power blade - Google Patents
Lightning protection system for wind power blade Download PDFInfo
- Publication number
- CN210440167U CN210440167U CN201921552676.6U CN201921552676U CN210440167U CN 210440167 U CN210440167 U CN 210440167U CN 201921552676 U CN201921552676 U CN 201921552676U CN 210440167 U CN210440167 U CN 210440167U
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- China
- Prior art keywords
- lightning
- blade
- base
- apex
- lightning receptor
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- 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.)
- Withdrawn - After Issue
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- 230000005611 electricity Effects 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims description 28
- 238000007789 sealing Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010030 laminating Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Images
Classifications
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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
Abstract
The utility model relates to a lightning protection equipment technical field discloses a lightning protection system for wind-powered electricity generation blade, including blade lightning receiving unit, apex lightning receiving unit and wire, blade lightning receiving unit includes blade lightning receptor and blade lightning receptor base, on the blade lightning receptor base, the terminal surface all is equipped with the perpendicular to on, the screw hole of terminal surface down, blade lightning receptor lower extreme is equipped with screw hole assorted screw thread post, apex lightning receiving unit includes apex lightning receptor and apex lightning receptor base, apex lightning receptor tip has seted up the draw-in groove, apex lightning receptor base one end be equipped with draw-in groove assorted fixture block, be equipped with the screw hole on the fixture block, be equipped with on the draw-in groove with the paired countersunk head of fixture block screw hole. In this scheme blade arrester unit and apex arrester unit all adopt the mode of matching to connect, have realized the face laminating of arrester and arrester base, have abundant electric contact area, and reliable and stable prevents phenomenons such as striking sparks to reach better lightning protection effect.
Description
Technical Field
The utility model relates to a lightning protection equipment technical field specifically is a lightning protection system for wind-powered electricity generation blade.
Background
Wind power generators are usually installed in open field sites, lightning strikes are often suffered in thunderstorm days, and since the blades of the wind power generators are higher in the rotating process, a lightning protection system needs to be installed on the blades of the wind power generators.
At present, a lightning protection system of a wind power blade is connected with lightning receiving systems at all positions through a lightning protection lead, and each blade is provided with a plurality of blade body lightning receiving systems and a blade tip lightning receiving system. Each group of blade lightning receptor system is provided with 2 lightning receptors which are respectively distributed on a PS shell and an SS shell, and each group of blade lightning receptor system mainly comprises a lightning receptor base and a lightning receptor. The current industry's general scheme for making a blade body lightning receptor system is to fix a lightning receptor base block (without a threaded hole) on the inner surface of a shell by using adhesive after the blade shell is cured, and to bolt-connect with a wire. Treat the blade back of drawing a mould, the rethread metal detector location arrives the arrester base position, confirms the back and begins to punch to the inside and tapping of arrester base promptly from the surface, and the arrester is fixed through threaded connection with the arrester base promptly. The blade tip lightning receptor is connected with the lead through a bolt and is bonded at the tip of the blade.
Because the blade internal surface is not horizontal owing to spread layer quantity and core thickness variation, because arrester base surface and blade surface nonparallel when the base bonds, after metal detector found the base, the nothing was sent out and is guaranteed to punch the perpendicular to base surface, leads to screw hole and arrester base surface out of plumb, has certain angle rather than even, can't and arrester base surface contact after final arrester installation to influence the whole lightning protection effect of lightning protection system. And the blade tip lightning receptor can not be disassembled, and is difficult to disassemble and replace after being damaged, and the joint connection is complex.
SUMMERY OF THE UTILITY MODEL
The utility model provides a lightning protection system for wind-powered electricity generation blade to solve in the blade lightning receiving system arrester surface and the laminating of the unable face of base surface and lead to lightning protection effect not good, apex lightning arrester undetachable, the complicated problem of electrical connection.
In order to achieve the above object, the basic scheme of the present invention is as follows:
a lightning protection system for a wind power blade comprises a blade body lightning receiving unit, a blade tip lightning receiving unit and a wire, wherein the blade body lightning receiving unit comprises a blade body lightning receptor and a blade body lightning receptor base, the upper end surface and the lower end surface of the blade body lightning receptor base are respectively provided with a threaded hole vertical to the upper end surface and the lower end surface, the lower end of the blade body lightning receptor is provided with a threaded column matched with the threaded hole, two ends of the blade body lightning receptor base are provided with metal tubes, the blade tip lightning receiving unit comprises a blade tip lightning receptor and a blade tip lightning receptor base, the end part of the blade tip lightning receptor is provided with a clamping groove, one end of the blade tip lightning receptor base is provided with a clamping block matched with the clamping groove, the other end of the blade tip lightning receptor base is provided with a metal tube, the metal tube of the blade tip lightning receptor base is connected with the metal tube at one end of the blade body lightning receptor base through the wire, the metal tube at the other end of the blade body lightning receptor, the fixture block is provided with a mounting hole, and a counter sink matched with the fixture block mounting hole is arranged above the clamping groove.
Furthermore, the metal pipe and the lead are in compression joint, and the joint of the metal pipe and the lead is insulated and sealed by adopting a heat-shrinkable pipe sleeve.
Furthermore, a set screw is also arranged on the blade lightning receptor.
Furthermore, the outer surface of the blade lightning receiving unit is provided with an insulating sealing layer.
Further, all limits of blade lightning receptor base all set up the fillet.
The beneficial effect of this scheme is: (1) in this scheme blade arrester unit and apex arrester unit all adopt the mode of matching to connect, have realized the face laminating of arrester and arrester base, have abundant electric contact area, and reliable and stable prevents phenomenons such as striking sparks to reach better lightning protection effect.
(2) The blade tip lightning receptor and the blade tip lightning receptor base are matched through the clamping groove and the clamping block and then fixed through the countersunk head screws, so that the stable connection between the blade tip lightning receptor and the blade tip lightning receptor base is strengthened while the surface-to-surface contact is ensured;
the sunk screws are adopted to ensure that no bulge exists on the surface of the blade tip lightning receptor, the blade airfoil is kept smooth and excessive, various corrosion effects are reduced, and the service life of the blade tip lightning receptor is prolonged;
the lightning receptor of the blade tip is the highest in lightning receptor probability and is easier to damage, the blade tip lightning receptor and the base of the blade tip lightning receptor are detachably connected, and the blade tip lightning receptor can be replaced after being damaged due to multiple lightning strikes.
(3) The junction of the wire and the metal pipe is insulated and sealed by adopting a heat-shrinkable pipe sleeve, and the outer surface of the blade body lightning receiving unit is coated with an insulating sealing layer, so that the condition that metal is exposed inside the blade is prevented, and internal electric insulation and anticorrosion sealing are facilitated.
(4) All lightning receptor bases and tubular metal resonator body design, the form that wire and tubular metal resonator adopted the crimping makes to connect simply, level and smooth, does not have the closed angle, the inhomogeneous problem of electric field distribution of effectual improvement.
(5) Besides the threaded connection, the blade body lightning arrester is also provided with a set screw to prevent the lightning arrester from loosening after lightning arrester is connected with the blade body lightning arrester base.
Drawings
FIG. 1 is a schematic view of an assembly of an embodiment of the present invention with a wind turbine blade;
FIG. 2 is an exploded view of a lightning receptor unit of an embodiment of the present invention;
fig. 3 is an exploded view of the blade tip lightning receptor unit according to the embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the blade body lightning receiving unit comprises a blade body lightning receiving unit 1, a blade tip lightning receiving unit 2, a lead 3, a blade body lightning receiver 4, a blade body lightning receiver base 5, a threaded hole 6, a threaded column 7, a set screw 8, a metal pipe 9, an insulating sealing layer 10, a blade tip lightning receiver 11, a blade tip lightning receiver base 12, a clamping groove 13, a clamping block 14, a sunk screw 15 and a heat-shrinkable tube sleeve 16.
Examples
Substantially as shown in figure 1: a lightning protection system for a wind power blade comprises a blade body lightning receiving unit 1, a blade tip lightning receiving unit 2 and a lead 3.
Combine shown in fig. 2, blade lightning receiving unit 1 includes blade lightning receptor 4 and blade lightning receptor base 5, and all limits of blade lightning receptor base 5 all set up the fillet, and blade lightning receptor base 5 is last, lower terminal surface all is equipped with the screw hole 6 of perpendicular to terminal surface, and blade lightning receptor 4 lower extreme is equipped with and screw hole 6 assorted screw thread post 7, screw thread post 7 and screw hole 6 threaded connection, still are equipped with the aperture on the blade lightning receptor 4, are equipped with holding screw 8 in the aperture. The two ends of the base 5 of the blade body lightning arrester are provided with metal pipes 9, and the outer surface of the blade body lightning arresting unit 1 is provided with an insulating sealing layer 10.
Combine shown in fig. 3, apex lightning arrester unit 2 includes apex lightning arrester 11 and apex lightning arrester base 12, and apex lightning arrester 11 tip has seted up draw-in groove 13, apex lightning arrester base 12 one end be equipped with draw-in groove 13 assorted fixture block 14, be equipped with four mounting holes on the fixture block 14, be equipped with four counter bores that correspond on the apex lightning arrester 11, fixture block 14 stretches into in the draw-in groove 13 to fix through countersunk screw 15, apex lightning arrester base 12 other end is equipped with tubular metal resonator 9.
The metal tube 9 of the blade tip lightning receptor base 12 is connected with the metal tube 9 at the right end of the blade body lightning receptor base 5 through a lead 3, and the metal tube 9 at the left end of the blade body lightning receptor base 5 is connected with the lead 3. The metal tube 9 and the lead 3 are pressed and connected, and the joint of the metal tube 9 and the lead 3 is insulated and sealed by a heat-shrinkable tube sleeve 16.
The specific implementation process is as follows: the blade tip lightning receptor base 12 and the blade body lightning receptor base 5 are assembled and bonded on one side of the shell after the wind power blade semi-shell is solidified.
After the blade is demoulded, screwing the threaded column 7 on the blade lightning receptor 4 matched with the threaded hole 6 of the blade lightning receptor base 5 into the blade lightning receptor base, finally ensuring that the blade lightning receptor base 5 is in complete surface-to-surface contact with the blade lightning receptor 4, finally screwing the fastening screw 8 into the small hole of the blade lightning receptor 4, and sealing the small hole by using sealant; the clamping block 14 on the blade tip lightning receptor base 12 is assembled with the clamping groove 13 on the blade tip lightning receptor 11, 4M 8 countersunk head screws 15 are adopted for installation, the blade tip lightning receptor base 12 is in surface-to-surface contact with the blade tip lightning receptor 11, and the countersunk head screws 15 are sealed. Adjusting the size of the lightning receptor 4 exceeding the surface of the blade (the lightning receptor 4 can be polished to exceed the surface of the blade by 2 mm), and scraping the sealant around to perform sealing treatment.
The foregoing is merely an example of the present invention and common general knowledge in the art of known specific structures and/or features has not been set forth herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (5)
1. The utility model provides a lightning protection system for wind-powered electricity generation blade, includes that the blade body connects to dodge unit, apex and connects to dodge unit and wire, its characterized in that: the blade lightning receiving unit comprises a blade lightning receiver and a blade lightning receiver base, the upper end surface and the lower end surface of the blade lightning receiver base are both provided with threaded holes vertical to the upper end surface and the lower end surface, the lower end of the blade body lightning arrester is provided with a threaded column matched with the threaded hole, two ends of the base of the blade body lightning arrester are provided with metal pipes, the blade tip lightning receiving unit comprises a blade tip lightning receiver and a blade tip lightning receiver base, the end part of the blade tip lightning receiver is provided with a clamping groove, one end of the apex lightning receptor base is provided with a clamping block matched with the clamping groove, the other end of the apex lightning receptor base is provided with a metal tube, the metal tube of the blade tip lightning receptor base is connected with the metal tube at one end of the blade body lightning receptor base through a lead, the metal pipe of the other end of the blade lightning arrester base is connected with a wire, the clamping block is provided with a mounting hole, and a counter sink matched with the mounting hole of the clamping block is arranged above the clamping groove.
2. The lightning protection system for the wind power blade according to claim 1, characterized in that: the metal pipe is in compression joint with the lead, and the joint of the metal pipe and the lead is insulated and sealed by adopting a heat-shrinkable pipe sleeve.
3. The lightning protection system for the wind power blade according to claim 2, characterized in that: and the blade lightning arrester is also provided with a set screw.
4. The lightning protection system for the wind power blade according to claim 3, characterized in that: and an insulating sealing layer is arranged on the outer surface of the blade lightning receiving unit.
5. The lightning protection system for the wind power blade according to claim 4, wherein: all limits of blade lightning receptor base all set up the fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921552676.6U CN210440167U (en) | 2019-09-18 | 2019-09-18 | Lightning protection system for wind power blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921552676.6U CN210440167U (en) | 2019-09-18 | 2019-09-18 | Lightning protection system for wind power blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210440167U true CN210440167U (en) | 2020-05-01 |
Family
ID=70410840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921552676.6U Withdrawn - After Issue CN210440167U (en) | 2019-09-18 | 2019-09-18 | Lightning protection system for wind power blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210440167U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454335A (en) * | 2019-09-18 | 2019-11-15 | 吉林重通成飞新材料股份公司 | A kind of wind electricity blade lightning-protection system |
| CN115313156A (en) * | 2022-07-27 | 2022-11-08 | 西安时代科亿机电设备制造有限公司 | Fan blade lightning protection device and packaging method |
-
2019
- 2019-09-18 CN CN201921552676.6U patent/CN210440167U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110454335A (en) * | 2019-09-18 | 2019-11-15 | 吉林重通成飞新材料股份公司 | A kind of wind electricity blade lightning-protection system |
| CN110454335B (en) * | 2019-09-18 | 2024-05-07 | 吉林重通成飞新材料股份公司 | Lightning protection system for wind power blade |
| CN115313156A (en) * | 2022-07-27 | 2022-11-08 | 西安时代科亿机电设备制造有限公司 | Fan blade lightning protection device and packaging method |
| CN115313156B (en) * | 2022-07-27 | 2024-04-12 | 西安时代科亿机电设备制造有限公司 | Lightning protection device for fan blade and packaging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230713 Address after: Room 185, General Office, No. 9, Keji Avenue, High tech Industrial Development Zone, Changji Hui Autonomous Prefecture, Xinjiang, 831100 Patentee after: Xinjiang Chengfei New Materials Co.,Ltd. Address before: 131300 No.2 Xinggong Road, Da'an City, Baicheng City, Jilin Province Patentee before: JILIN CHONGTONG CHENGFEI NEW MATERIAL Co. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200501 Effective date of abandoning: 20240507 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20200501 Effective date of abandoning: 20240507 |