CN107401479A - A kind of blade tip extension and apply its wind power generation unit blade - Google Patents
A kind of blade tip extension and apply its wind power generation unit blade Download PDFInfo
- Publication number
- CN107401479A CN107401479A CN201710883943.7A CN201710883943A CN107401479A CN 107401479 A CN107401479 A CN 107401479A CN 201710883943 A CN201710883943 A CN 201710883943A CN 107401479 A CN107401479 A CN 107401479A
- Authority
- CN
- China
- Prior art keywords
- blade
- housing
- tip extension
- blade tip
- power generation
- 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.)
- Pending
Links
- 238000010248 power generation Methods 0.000 title claims abstract description 32
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 210000003205 muscle Anatomy 0.000 claims description 21
- 239000003292 glue Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 5
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 11
- 229910052802 copper Inorganic materials 0.000 description 11
- 239000010949 copper Substances 0.000 description 11
- 239000004020 conductor Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/30—Lightning protection
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention provides a kind of blade tip extension, including housing and web, housing includes the suction surface housing and pressure face housing being oppositely arranged, the front edge side of suction surface housing and pressure face housing, rear side and tip are bonded mutually, the root-end openings of housing, web are fixedly connected between suction surface housing and pressure face housing.Present invention also offers a kind of wind power generation unit blade, includes cutting off the blade body of leaf tip, the butt of blade tip extension described above is fixedly connected with one end of blade body excision leaf tip.Blade tip extension of the present invention, it can be used in extension wind power generation unit blade length, lighter in weight, cost is relatively low and installation steps are simple, it is easy for installation, possess stronger operability, using the wind power generation unit blade of the blade tip extension, its total length can be extended, weightening is smaller, and running of wind generating set safety coefficient is higher, is beneficial to improve existing military service Wind turbines generating efficiency, reduction degree electricity cost, improve the economy of Wind turbines.
Description
Technical field
The present invention relates to wind power generation unit blade technical field, prolongs more particularly to a kind of blade tip extension and using the blade tip
The wind power generation unit blade in long portion.
Background technology
With the development of wind power generation industry, wind power generating set is towards the side that installed capacity is higher, generating efficiency is higher
To development, and the design of wind power generation unit blade directly affects conversion efficiency and the installed capacity of wind energy, is the important of wind energy utilization
One ring, therefore, turn into development trend by extending wind power generation unit blade length raising generating efficiency.It can meet wind in guarantee load
On the basis of power generator safe operation, the appropriate length of blade that increases can significantly improve Wind turbines generating efficiency, reduce and generate electricity
Cost, improve the economy of Wind turbines.For the Wind turbines newly installed, new longer blade can be selected during installation.
To Wind turbines of being on active service, it is only capable of increasing blade length by way of the longer blade of the length more renewed in the prior art
Degree, but replacing blade cost is higher, and also the blade exchanging cycle is longer, and it is inconvenient to change.
Therefore, how founding one kind, to can be used in extending wind power generation unit blade length, lighter in weight, cost relatively low and install
Convenient blade tip extension, make to apply its wind power generation unit blade length is longer, weightening is less and can improve Wind turbines to send out
Electrical efficiency, it is those skilled in the art's urgent problem to be solved.
The content of the invention
The invention solves first technical problem be to provide one kind can extend wind power generation unit blade length, weight compared with
Gently, the relatively low and easy for installation blade tip extension of cost, to overcome by changing new blade to extend wind power generation unit blade length
Cost is higher, and the replacement cycle is longer and changes inconvenient deficiency.
In order to solve the above technical problems, the invention provides a kind of blade tip extension, including housing and web, the housing
Including the suction surface housing and pressure face housing being oppositely arranged, front edge side, the trailing edge of the suction surface housing and pressure face housing
Bonding, the root-end openings of the housing, the web are fixedly connected on the suction surface housing and pressure face mutually for side and tip
Between housing.
As a modification of the present invention, the suction surface housing and pressure face housing include girder and are separately positioned on
The skinning layer of the girder both sides.
Further improve, bonding angle is bonded with the inside of the leading edge of the housing.
Further improve, in addition to connect sudden strain of a muscle device, the sudden strain of a muscle device that connects is positioned close at the tip of the housing.
Further improve, the sudden strain of a muscle device that connects includes connecing sudden strain of a muscle screw, conductive plate and wire, and the conductive plate is arranged on described
In housing at tip, described one end for connecing sudden strain of a muscle screw is connected with the conductive plate, described to connect the other end stretching for dodging screw
Outside the housing, one end of the wire is connected with the conductive plate, and the other end of the wire is used for and wind power generation unit blade
Lightning-protection system connection.
Further improve, the space dodged between device and the inwall of the housing that connects is filled with structure glue.
Further improve, the housing is provided with enhancement layer with described connect on the inwall for dodging screw connection.
The invention solves second technical problem be to provide a kind of wind power generation unit blade, make its length it is longer, weightening
It is less and Wind turbines generating efficiency can be improved.
In order to solve the above technical problems, the invention provides a kind of wind power generation unit blade, include cutting off the blade of leaf tip
Body, the butt of blade tip extension described above are fixedly connected with one end of blade body excision leaf tip.
As a modification of the present invention, the butt of the blade tip extension is set in the blade body excision leaf tip
One end on, be pasted with enhancement layer on the outside of the junction of the blade tip extension and the blade body.
Further improve, the blade tip extension is with being pasted with multilayer reinforcement on the outside of the junction of the blade body
Layer, the multilayer enhancement layer dislocation are stacked in the blade tip extension and the junction outside of the blade body.
After above-mentioned design, the present invention at least has advantages below：
1st, blade tip extension of the invention, length, lighter in weight, the cost that can be used in extending wind power generation unit blade are relatively low
It is easy for installation and installation steps are simple, possess stronger operability.
2nd, by setting bonding angle on the inside of the leading edge of housing, it is beneficial to the structural strength for strengthening housing, avoids the blade tip
The leading edge of extension is recessed under the effect of the pressure.
3rd, wind power generation unit blade of the invention, using above-mentioned blade tip extension, can extend its total length, increase weight compared with
Small, running of wind generating set safety coefficient is higher, is beneficial to improve existing military service Wind turbines generating efficiency, reduction degree electricity cost,
Improve the economy of Wind turbines.
4th, by pasting enhancement layer on the outside of the junction of blade tip extension and blade body, can make blade tip extension with
Blade body is connected firmly.
The 5th, multilayer enhancement layer is set, and multilayer enhancement layer is beneficial to further using the stacked arrangement of dislocation
Improve blade tip extension and the bonding strength of blade body.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, below
With reference to accompanying drawing, the present invention is described in further detail with embodiment.
Fig. 1 is the structural representation of blade tip extension of the present invention；
Fig. 2 is the part-structure schematic diagram of the leading edge of blade tip extension of the present invention；
Fig. 3 is the structural representation for connecing sudden strain of a muscle device of blade tip extension of the present invention；
Wherein, 1, housing, 2, web, 3, suction surface housing, 4, pressure face housing, 5, bonding angle, 6, girder, 7, covering
Layer, 8, connect sudden strain of a muscle screw, 9, copper coin, 10, bolt, 11, copper conductor, 12, structure glue, 13, enhancement layer.
Embodiment
Referring to shown in Fig. 1 and Fig. 2, the invention provides a kind of blade tip extension, including housing 1 and web 2, the housing 1
Including the suction surface housing 3 and pressure face housing 4 being oppositely arranged, front edge side, the trailing edge of suction surface housing 3 and pressure face housing 4
Side and tip bonding mutually, the root-end openings of the housing 1, web 2 be fixedly connected on suction surface housing 3 and pressure face housing 4 it
Between.
Specifically, suction surface housing 3 includes girder 6 and is separately positioned on the skinning layer 7 of the both sides of girder 6, girder 6 and covering
Layer 7 is integrally formed by irrigating resin process, and skinning layer 7 extends the edge of girder 6.Pressure face housing 4 and suction surface housing 3
Using identical structure, front edge side, rear side and the skinning layer at tip 7 of suction surface housing 3 and pressure face housing 4 are mutually bonded.
In addition, the blade tip extension also includes bonding angle 5, the bonding angle 5 is bonded in the inner side of the leading edge of housing 1, can avoid the blade tip
The leading edge of extension is recessed under the effect of the pressure.The butt of suction surface housing 3 and pressure face housing 4, which is formed, to be open, and uses
It is connected in wind power generation unit blade.Web 2 is bonded between suction surface housing 3 and pressure face housing 4, is prolonged for improving the blade tip
The overall construction intensity in long portion.Web 2 can be also connected using other connected modes with suction surface housing 3 and pressure face housing 4.
Coordinate shown in Fig. 1 and Fig. 3, the blade tip extension of the present embodiment also includes connecing sudden strain of a muscle device, and this connects sudden strain of a muscle device and is arranged on
At the tip of housing 1, it is connected for the lightning-protection system with wind power generation unit blade.This, which connects, dodges device including connecing sudden strain of a muscle screw 8, leading
Electroplax, bolt 10 and wire, what conductive plate and wire were respectively adopted in the present embodiment is copper coin 9 and copper conductor 11.Copper coin 9 is set
In housing 1 at tip, the one end for connecing sudden strain of a muscle screw 8 is connected with copper coin 9, and the other end is reached outside housing 1, copper conductor 11
One end is connected by bolt 10 with copper coin 9, and the other end of copper conductor 11 is used to be connected with the lightning-protection system of wind power generation unit blade.This
Embodiment is provided with to connect on pressure face housing 4 and suction surface housing 3 dodges screw 8, is connect with improving the lightning protection for connecing sudden strain of a muscle device
Effect is dodged, this connects, and sudden strain of a muscle apparatus structure is simple, and convenient to assemble and disassemble and cost is cheap.The junction of screw 8 is dodged to improve housing 1 and connecing
Structural strength, also enhancement layer can be set on the inwall that housing 1 dodges the junction of screw 8 with connecing.
Loosened to avoid this from connecing sudden strain of a muscle device with blade rotation process, this is connect into sudden strain of a muscle device in the present embodiment is arranged on
At the tip of housing 1, and by connecing the space filling structure glue 12 dodged between device and the inwall of housing 1 in interior this of housing 1,
Realize to connect and dodge being fixedly connected for device and housing 1, be connected firmly, it is not easy to loosen.
The production stage of blade tip extension of the present invention is as follows：
1) designed according to pneumatic principle and make the suction surface housing mould of the blade tip extension, pressure face housing mould and
Web mold；
2) material such as girder 6, skinning layer 7 made needed for suction surface housing 3, pressure face housing 4 and web 2 is spread
If resin in a mold, is irrigated into mould to be integrally formed, suction surface housing 3, pressure face housing 4 are obtained after the cured demoulding
Or web 2；
3) suction surface housing 3, pressure face housing 4, web 2 and bonding angle 5 are bonded, connects sudden strain of a muscle device, the cured demoulding
The processing of the blade tip extension is completed afterwards.For ease of in-site installation, in plant produced, only the leading edge of housing 1 can be bonded,
The trailing edge of housing 1 can keep open state, until wind power plant is bonded again after completing installation.
Present invention also offers a kind of wind power generation unit blade, includes cutting off the blade body of leaf tip, blade tip described above
The butt of extension is set on one end of blade body excision leaf tip, and is fixedly connected with blade body.Blade tip extends
The length of overlapped part of portion and blade body can be 500mm~600mm, prolong in the present embodiment using 500m, certain blade tip
Long portion and the length of overlapped part of blade body, can suitably it be adjusted according to the entire length of wind power generation unit blade and blade tip extension
It is whole, it is not limited only to above-mentioned length.Blade tip extension is also not limited to use above-mentioned connected mode with blade body, as long as can be real
Now it is fixedly connected.
To make the blade tip extension be connected firmly with blade body, avoid occur loosening using process, fracture, can also be
Paste enhancement layer in the outside of the junction of blade tip extension and blade body.Preferably, Pasting multilayer enhancement layer is more
Layer enhancement layer, which can misplace, to be stacked on the outside of the junction of blade tip extension and blade body.The length of enhancement layer is in the present embodiment
500mm, the length of certain enhancement layer can change according to being actually needed.
Lightning-protection system is additionally provided with the blade body, the sudden strain of a muscle device that connects of blade tip extension described above passes through copper conductor 11
It is connected with the lightning-protection system, the wind power generation unit blade is possessed lightning protection and connect sudden strain of a muscle ability, avoid it from being damaged because being struck by lightning.
The blade tip extension installation steps of wind power generation unit blade of the present invention are as follows：
1) leaf tip of original blade body is cut off, exposes the wire of lightning-protection system；
2) copper conductor 11 for connecing sudden strain of a muscle device of blade tip extension is connected with the wire of lightning-protection system in original blade body；
3) root of blade tip extension is set in into original blade body to cut off on one end of leaf tip, is bonded lap
And the trailing edge of blade tip extension；
4) hand pastes enhancement layer on the outside of the junction of blade tip extension and blade body.
The blade tip extension of the present invention, it is relatively low and pacify to can be used in extending wind power generation unit blade length, lighter in weight, cost
It is simple to fill step, it is easy for installation, possess stronger operability, using the wind power generation unit blade of the blade tip extension, Neng Gouyan
Its long total length, weightening is smaller, and running of wind generating set safety coefficient is higher, is beneficial to improve existing military service Wind turbines generating effect
Rate, reduction degree electricity cost, improve the economy of Wind turbines.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, this
Art personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.
Claims (10)
1. a kind of blade tip extension, it is characterised in that including housing and web, the housing includes the suction face-piece being oppositely arranged
Body and pressure face housing, front edge side, rear side and the tip of the suction surface housing and pressure face housing are bonded mutually, the shell
The root-end openings of body, the web are fixedly connected between the suction surface housing and pressure face housing.
2. blade tip extension according to claim 1, it is characterised in that the suction surface housing and pressure face housing wrap
Include girder and be separately positioned on the skinning layer of the girder both sides.
3. blade tip extension according to claim 2, it is characterised in that bonding is bonded with the inside of the leading edge of the housing
Angle.
4. according to the blade tip extension described in claim any one of 1-3, it is characterised in that also include connecing sudden strain of a muscle device, it is described to connect
Device is dodged to be positioned close at the tip of the housing.
5. blade tip extension according to claim 4, it is characterised in that described connect dodges device including connecing sudden strain of a muscle screw, conduction
Plate and wire, the conductive plate are arranged in the housing at tip, described to connect the one end for dodging screw and the conductive plate
Connection, described to connect outside the other end stretching housing for dodging screw, one end of the wire is connected with the conductive plate, described to lead
The other end of line is used to be connected with the lightning-protection system of wind power generation unit blade.
6. blade tip extension according to claim 5, it is characterised in that it is described connect dodge device and the housing inwall it
Between space be filled with structure glue.
7. blade tip extension according to claim 5, it is characterised in that the housing dodges screw connection with described connect
Enhancement layer is provided with inwall.
A kind of 8. wind power generation unit blade, it is characterised in that the blade body including cutting off leaf tip, as claim 1-7 is any
The butt of blade tip extension described in is fixedly connected with one end of blade body excision leaf tip.
9. wind power generation unit blade according to claim 8, it is characterised in that the butt of the blade tip extension is set in institute
On the one end for stating blade body excision leaf tip, the blade tip extension adds with being pasted with the outside of the junction of the blade body
Strong layer.
10. wind power generation unit blade according to claim 9, it is characterised in that the blade tip extension and the blade sheet
Be pasted with multilayer enhancement layer on the outside of the junction of body, the multilayer enhancement layer dislocation be stacked in the blade tip extension with it is described
On the outside of the junction of blade body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710883943.7A CN107401479A (en) | 2017-09-26 | 2017-09-26 | A kind of blade tip extension and apply its wind power generation unit blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710883943.7A CN107401479A (en) | 2017-09-26 | 2017-09-26 | A kind of blade tip extension and apply its wind power generation unit blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107401479A true CN107401479A (en) | 2017-11-28 |
Family
ID=60388540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710883943.7A Pending CN107401479A (en) | 2017-09-26 | 2017-09-26 | A kind of blade tip extension and apply its wind power generation unit blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107401479A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019169940A1 (en) * | 2018-03-09 | 2019-09-12 | 深圳光启尖端技术有限责任公司 | Z-pin reinforced composite wind turbine blade and manufacturing method therefor |
| CN114412699A (en) * | 2022-02-07 | 2022-04-29 | 常州市新创智能科技有限公司 | Sectional type combined material wind-powered electricity generation blade |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2182203A2 (en) * | 2008-11-03 | 2010-05-05 | Energiekontor AG | Wind turbine rotor blade with an extension |
| CN101749194A (en) * | 2009-12-11 | 2010-06-23 | 重庆通用工业(集团)有限责任公司 | Wind turbine blade for large-scale wind generating set, and molding method thereof |
| CN204663759U (en) * | 2015-02-06 | 2015-09-23 | 庄岳兴 | Fan blade of wind generating set blade tip prolonged section structure and blade thereof and unit |
| CN106626182A (en) * | 2016-12-06 | 2017-05-10 | 北京金风科创风电设备有限公司 | Blade lightning receptor installation method, blade and wind generating set |
| CN106762389A (en) * | 2016-12-20 | 2017-05-31 | 北京金风科创风电设备有限公司 | Blade tip, blade of wind generating set and blade tip installation method |
| CN207245925U (en) * | 2017-09-26 | 2018-04-17 | 国电联合动力技术有限公司 | A kind of blade tip extension and apply its wind power generation unit blade |
-
2017
- 2017-09-26 CN CN201710883943.7A patent/CN107401479A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2182203A2 (en) * | 2008-11-03 | 2010-05-05 | Energiekontor AG | Wind turbine rotor blade with an extension |
| CN101749194A (en) * | 2009-12-11 | 2010-06-23 | 重庆通用工业(集团)有限责任公司 | Wind turbine blade for large-scale wind generating set, and molding method thereof |
| CN204663759U (en) * | 2015-02-06 | 2015-09-23 | 庄岳兴 | Fan blade of wind generating set blade tip prolonged section structure and blade thereof and unit |
| CN106626182A (en) * | 2016-12-06 | 2017-05-10 | 北京金风科创风电设备有限公司 | Blade lightning receptor installation method, blade and wind generating set |
| CN106762389A (en) * | 2016-12-20 | 2017-05-31 | 北京金风科创风电设备有限公司 | Blade tip, blade of wind generating set and blade tip installation method |
| CN207245925U (en) * | 2017-09-26 | 2018-04-17 | 国电联合动力技术有限公司 | A kind of blade tip extension and apply its wind power generation unit blade |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019169940A1 (en) * | 2018-03-09 | 2019-09-12 | 深圳光启尖端技术有限责任公司 | Z-pin reinforced composite wind turbine blade and manufacturing method therefor |
| CN114412699A (en) * | 2022-02-07 | 2022-04-29 | 常州市新创智能科技有限公司 | Sectional type combined material wind-powered electricity generation blade |
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