CN206458568U - Fan blade lightning protection device with metal blade tip - Google Patents
Fan blade lightning protection device with metal blade tip Download PDFInfo
- Publication number
- CN206458568U CN206458568U CN201720047613.XU CN201720047613U CN206458568U CN 206458568 U CN206458568 U CN 206458568U CN 201720047613 U CN201720047613 U CN 201720047613U CN 206458568 U CN206458568 U CN 206458568U
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- China
- Prior art keywords
- metal
- tip
- conductive strips
- conductive
- fan blade
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- Withdrawn - After Issue
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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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model is related to a kind of blade of wind-driven generator lightning arrester, more particularly to a kind of fan blade lightning protection device with metal blade tip.The device includes fan blade, metal blade tip on fan blade leaf tip, be sleeved on metal blade tip and with the metal protection set of metal blade tip conductive attachment, cover to each extend on upper and lower two arc-shaped curved surfaces of openend in the metal protection and be provided with least two conductive strips, conductive strips are along fan blade is axially extending and spaced radial is set, covered in metal protection and conducting ring is surrounded with the leaf tip at openend rear portion, conductive strips and conducting ring conductive attachment.The utility model has the advantages that efficiently solving the technical problem that vane tip draws thunder compared with prior art, simple in construction, cost is low and deadweight is small, the prepackage before blade dispatches from the factory is cannot be only used for, while also operating fan blade can be installed additional and transformed.
Description
Technical field
The utility model is related to a kind of blade of wind-driven generator lightning arrester, more particularly to a kind of blower fan with metal blade tip
Blade lightning protection device.
Background technology
Wind-power electricity generation has the characteristics of green, safety, regeneration, has obtained sizable popularization and hair at home in recent years
Exhibition.Wind-driven generator is generally located in the high point of open space, is easily struck by lightning, and the leaf tip of blade is in highest order
Put, powered cloud layer is contacted at first, therefore it is the most important thing of blower fan lightning protection that blade tip, which is taken shelter from the thunder,.Analyze according to statistics, the wind being struck by lightning
Machine, broken by lightning position 80% concentrates on blade, and the 90% of blade infringement concentrates on blade tip position.Blade traditional at present is prevented
Thunder technical pattern is single, and general blade only installs two groups of arresters, is led to the thunder of leading that lightning current is introduced in blade by downlead
Road, because arrester contact area is smaller, while limited by blade construction form, arrester apart from vane tip have one section away from
From vane tip is by after thunder, it is impossible to be effectively quickly delivered to lightning-arrest passage, blade tip moment will be wounded or be smashed.With
The renewal of technology, part new blades are provided with solid metal blade tip to replace arrester, it is intended that solve arrester contact area
It is small, lead the drawbacks of thunder has some setbacks, but due to the limitation of blade shape and mechanical property, most advanced metal blade tip can not be oversize,
Often there was only 10cm or so, and in order at utmost reduce solid blade tip weight, the relatively low aluminium of big more options density as
The material of metal blade tip is manufactured, aluminium conductance is big compared to copper, but be easy to oxidation in atmosphere, aluminum oxide can be formed after oxidation
Fast and effectively lightning current can not be introduced after film, aluminum oxide not easy conductive, contact thundercloud and lead thunder passage, while metal leaf
The problem of also there is protection curtailment in point, so that after leaf tip is struck by lightning, the extent of damage is still very serious, it is impossible to play
Effective lightning protection, lightning-arrest effect.In addition, have also appeared some can be nested with the metal protection set in leaf tip, but it is same because
Deadweight is larger, and its practicality, applicability and security are unsatisfactory.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of fan blade lightning protection device with metal blade tip,
To overcome in the prior art that conductive effect is undesirable, lightning protection effect is poor, protector is from the technological deficiency such as great.
The utility model solves the technical scheme that its technical problem used：
Fan blade lightning protection device with metal blade tip, including fan blade, the metal on fan blade leaf tip
Blade tip, be sleeved on metal blade tip and with the metal protection set of metal blade tip conductive attachment, the metal protection cover openend
Upper and lower two arc-shaped curved surfaces on each extend over and be provided with least two conductive strips, conductive strips along fan blade it is axially extending and
Spaced radial is set, and is covered in metal protection and is surrounded with conducting ring, conductive strips and conducting ring on the leaf tip at openend rear portion
Conductive attachment.
Further, first through hole is offered on metal protection set, conductive attachment bolt is through first through hole and metal leaf
Sharp Screw assembly, conductive attachment bolt is pan bolt structure.
Further, opposite position offers caulking groove on the leaf tip of conductive strips and conducting ring bottom, conductive strips and
Conducting ring is embedded in caulking groove and is adhesively fixed.
It is preferred that, the setting quantity of conductive strips is 4~14, and the length of conductive strips covers the 1~3 of length for metal protection
Times, conductive strips are metal tape or wire, and the cross-sectional area of conductive strips is 10~50mm2, conducting ring is along leaf tip axially spaced-apart
Arrangement, the quantity of conducting ring is 1~5 section, a diameter of 30~40mm of coiled hair of conductive attachment bolt.
Further, the second through hole is offered in metal protection set and leaf tip opposite position, steady pin is placed through the
In two through holes, part that steady pin is coupled by a pair of axial threads and correspondence build-up member are constituted, the part of steady pin and correspondingly
Build-up member is pan bolt structure.
It is preferred that, metal protection set, conductive attachment bolt, the material selection copper or stainless steel or aluminium of conductive strips and conducting ring
One kind.
Compared with prior art, having the technical effect that acquired by the utility model：
1st, each extended on upper and lower two arc-shaped curved surfaces due to covering openend in metal protection and be provided with least two and lead
Electric band, conductive strips are along fan blade is axially extending and spaced radial is set, on the leaf tip that metal protection covers openend rear portion
Conducting ring, conductive strips and conducting ring conductive attachment are surrounded with, reticulated conductive loop, reinforced conductive effect, phase can be formed
Than prior art, the technical problem that vane tip draws thunder is efficiently solved, effect of the lightning current to vane tip is reduced, in leaf
When point is by being struck by lightning, lightning current can be rapidly introduced into the down conductor passage of blade, lightning current be discharged, while adding blade tip
Portion leads thunder scope, reduces damage of the thunder and lightning to blade tip, can bear bigger lightning current impact；The utility model also has structure
Simply, cost it is low and conduct oneself with dignity small, security it is good the advantages of, cannot be only used for the prepackage before blade dispatches from the factory, at the same can also to operation
In fan blade installed additional and transformed, applicability is good.
2nd, first through hole is offered due to being covered in metal protection, conductive attachment bolt is through first through hole and metal blade tip spiral shell
Line is assembled, and conductive attachment bolt is pan bolt structure, can either play the fastening effect between each part, also can effectively ensure that
Metal protection covers the conductive attachment with metal blade tip, can join lightning current by conduction by conductive strips, conducting ring and protective case
Connecting bolt imported into rapidly metal blade tip, then by the lightning-arrest passage of blower fan, it is final to import the earth.
3rd, because the leaf tip opposite position in conductive strips and conducting ring bottom offers caulking groove, conductive strips and conducting ring
It is embedded in caulking groove and is adhesively fixed, on the premise of conductive effect is ensured, fan blade surface is seamlessly transitted, and does not influence blower fan
The normal operation of blade, practicality is good.
4th, because the setting quantity of conductive strips is 4~14, the length of conductive strips covers 1~3 times of length for metal protection,
Conductive strips are metal tape or wire, and the cross-sectional area of conductive strips is 10~50mm2, conducting ring along leaf tip axially spaced-apart arrange
Cloth, the quantity of conducting ring is 1~5 section, a diameter of 30~40mm of coiled hair of conductive attachment bolt, above parameter setting efficient hardening
Conductive effect of the present utility model and structural strength.
5th, because the metal blade tip of the present apparatus and fan blade is fixedly connected by steady pin, firmly install, it is safe and reliable；
Due to offering the second through hole in metal protection set and leaf tip opposite position, steady pin is placed through in the second through hole, structure
Reasonable in design, connection is firm, can effectively prevent blade from getting rid of by the present apparatus when high speed rotates；Steady pin is by a pair of axial threads
Two parts composition of mating, visual difference fan blade thickness, by adjusting the spacing of two screw thread its mating members, is adjusted at any time
The tightness of the whole present apparatus and blade, versatility is good, applied widely.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the utility model overall structure diagram.
Fig. 2 is Fig. 1 A-A direction views.
Fig. 3 is Fig. 1 B-B direction view.
In Fig. 1 into Fig. 3,
1st, fan blade；2nd, fan blade leaf tip；3rd, conductive strips；4th, metal protection set；5th, conductive attachment bolt；6th, it is golden
Belong to blade tip；7th, conducting ring；100th, steady pin；101st, fixed pin member；102nd, steady pin correspondence build-up member.
Embodiment
The utility model is described further below in conjunction with drawings and examples, the description is not as to the utility model
Restriction, protection domain of the present utility model is defined by the content that claim is recorded, any to be made according to patent specification
The equivalent technical elements gone out are replaced, all without departing from protection domain of the present utility model.
Embodiment 1：As Figure 1-3, the fan blade lightning protection device with metal blade tip, located at fan blade leaf tip 2
On metal blade tip 6, be sleeved on metal blade tip 6 and cover 4 with the metal protection of the conductive attachment of metal blade tip 6, the metal is prevented
Each extended on upper and lower two arc-shaped curved surfaces of the openend of sheath 4 and be provided with least two conductive strips 3, the present embodiment is preferred
The quantity of conductive strips is 6, and the length of conductive strips 3 covers 3 times of 4 for metal protection, and conductive strips are wire and cross-sectional area is
10mm2, conductive strips 3 cover the blade tip at 4 openend rear portions along fan blade 1 is axially extending and spaced radial is set in metal protection
Two section conducting rings 7 are surrounded with portion 2, conducting ring 7 is arranged along the axially spaced-apart of leaf tip 2, and conductive strips 3 are conductive with conducting ring 7
Connection, opposite position offers caulking groove 8, conductive strips 3 and conducting ring 7 on the leaf tip 2 of conductive strips 3 and the bottom of conducting ring 7
It is embedded in caulking groove 8, then is fixed with glue sticking and polish smooth, first through hole, conductive attachment is offered on metal protection set 4
Bolt 5 is through first through hole and the Screw assembly of metal blade tip 6, and conductive attachment bolt 5 is pan bolt structure, conductive attachment bolt 5
The a diameter of 30mm of coiled hair, metal protection set 4 and the opposite position of leaf tip 2 offer the second through hole, steady pin 100 is placed
Constituted in the part 101 and correspondence build-up member 102 that in the second through hole, steady pin 100 is coupled by axial thread, the He of part 101
Correspondence build-up member 102 is pan bolt structure, and the present embodiment is preferably provided with three groups of steady pins 100 by triangular pitch,
The present embodiment metal protection covers the material selection copper of 4, conductive attachment bolt 5, conductive strips 3 and conducting ring 7.
Embodiment 2：As Figure 1-3, conductive strips are metal tape and cross-sectional area is 30mm2, conductive attachment bolt 5
The a diameter of 35mm of coiled hair, the present embodiment metal protection covers the material selection of 4, conductive attachment bolt 5, conductive strips 3 and conducting ring 7 not
Become rusty steel, and remaining structure is as described in Example 1.
Embodiment 3：As Figure 1-3, conductive strips are metal tape and cross-sectional area is 50mm2, conductive attachment bolt 5
The a diameter of 40mm of coiled hair, the present embodiment metal protection covers the material selection of 4, conductive attachment bolt 5, conductive strips 3 and conducting ring 7
Aluminium, remaining structure is as described in Example 1.
Claims (8)
1. the fan blade lightning protection device with metal blade tip, including fan blade（1）, located at fan blade leaf tip（2）On
Metal blade tip（6）, it is sleeved on metal blade tip（6）It is upper and with metal blade tip（6）The metal protection set of conductive attachment（4）, its feature
It is the metal protection set（4）Each extended on upper and lower two arc-shaped curved surfaces of openend and be provided with least two conductive strips
（3）, conductive strips（3）Along fan blade（1）Axially extending and spaced radial is set, in metal protection set（4）Openend rear portion
Leaf tip（2）On be surrounded with conducting ring（7）, conductive strips（3）With conducting ring（7）Conductive attachment.
2. the fan blade lightning protection device according to claim 1 with metal blade tip, it is characterised in that in metal protection set
（4）On offer first through hole, conductive attachment bolt（5）Through first through hole and metal blade tip（6）Screw assembly, conductive attachment spiral shell
Bolt（5）For pan bolt structure.
3. the fan blade lightning protection device according to claim 1 or 2 with metal blade tip, it is characterised in that in conductive strips
（3）And conducting ring（7）The leaf tip of bottom（2）Upper opposite position offers caulking groove（8）, conductive strips（3）And conducting ring（7）Bury
Located at caulking groove（8）It is interior and be adhesively fixed.
4. the fan blade lightning protection device according to claim 1 or 2 with metal blade tip, it is characterised in that conductive strips（3）
Setting quantity be 4~14, conductive strips（3）Length be metal protection set（4）1~3 times of length, conductive strips（3）For gold
Category band or wire, conductive strips（3）Cross-sectional area be 10~50mm2, conducting ring（7）Along leaf tip（2）Axially spaced-apart is arranged,
Conducting ring（7）Quantity for 1~5 section, conductive attachment bolt（5）The a diameter of 30~40mm of coiled hair.
5. the fan blade lightning protection device according to claim 3 with metal blade tip, it is characterised in that conductive strips（3）Set
It is 4~14, conductive strips to put quantity（3）Length be metal protection set（4）1~3 times of length, conductive strips（3）For metal tape
Or wire, conductive strips（3）Cross-sectional area be 10~50mm2, conducting ring（7）Along leaf tip（2）Axially spaced-apart is arranged, conductive
Ring（7）Quantity for 1~5 section, conductive attachment bolt（5）The a diameter of 30~40mm of coiled hair.
6. the fan blade lightning protection device with metal blade tip according to claim 1 or 2 or 5, it is characterised in that in metal
Protective jacket（4）And leaf tip（2）Opposite position offers the second through hole, steady pin（100）It is placed through in the second through hole, it is fixed
Pin（100）By the part of a pair of axial thread matings（101）With correspondence build-up member（102）Composition, steady pin（100）Part
（101）With correspondence build-up member（102）It is pan bolt structure.
7. the fan blade lightning protection device with metal blade tip according to claim 1 or 2 or 5, it is characterised in that metal is prevented
Sheath（4）, conductive attachment bolt（5）, conductive strips（3）And conducting ring（7）Material selection copper or stainless steel or aluminium one kind.
8. the fan blade lightning protection device according to claim 6 with metal blade tip, it is characterised in that metal protection set
（4）, conductive attachment bolt（5）, conductive strips（3）And conducting ring（7）Material selection copper or stainless steel or aluminium one kind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720047613.XU CN206458568U (en) | 2017-01-16 | 2017-01-16 | Fan blade lightning protection device with metal blade tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720047613.XU CN206458568U (en) | 2017-01-16 | 2017-01-16 | Fan blade lightning protection device with metal blade tip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206458568U true CN206458568U (en) | 2017-09-01 |
Family
ID=59698704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720047613.XU Withdrawn - After Issue CN206458568U (en) | 2017-01-16 | 2017-01-16 | Fan blade lightning protection device with metal blade tip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206458568U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762469A (en) * | 2017-01-16 | 2017-05-31 | 张瑞佳 | Fan blade lightning protection device with metal blade tip |
| CN108266335A (en) * | 2017-12-18 | 2018-07-10 | 洛阳双瑞风电叶片有限公司 | A kind of wind power plant blade lightning protection device |
| CN110332081A (en) * | 2019-07-09 | 2019-10-15 | 中国华电科工集团有限公司 | A kind of wind electricity blade lightning protection structure and wind electricity blade |
| CN113958467A (en) * | 2021-09-13 | 2022-01-21 | 中国船舶重工集团海装风电股份有限公司 | Lightning protection lightning receiving combination device for wind turbine generator blade |
-
2017
- 2017-01-16 CN CN201720047613.XU patent/CN206458568U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762469A (en) * | 2017-01-16 | 2017-05-31 | 张瑞佳 | Fan blade lightning protection device with metal blade tip |
| CN108266335A (en) * | 2017-12-18 | 2018-07-10 | 洛阳双瑞风电叶片有限公司 | A kind of wind power plant blade lightning protection device |
| CN110332081A (en) * | 2019-07-09 | 2019-10-15 | 中国华电科工集团有限公司 | A kind of wind electricity blade lightning protection structure and wind electricity blade |
| CN113958467A (en) * | 2021-09-13 | 2022-01-21 | 中国船舶重工集团海装风电股份有限公司 | Lightning protection lightning receiving combination device for wind turbine generator blade |
| CN113958467B (en) * | 2021-09-13 | 2023-04-18 | 中国船舶重工集团海装风电股份有限公司 | Lightning protection lightning receiving combination device for wind turbine generator blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20230926 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170901 Effective date of abandoning: 20230926 |