CN106903917A - Wind power generation blade and preparation method thereof - Google Patents
Wind power generation blade and preparation method thereof Download PDFInfo
- Publication number
- CN106903917A CN106903917A CN201510971996.5A CN201510971996A CN106903917A CN 106903917 A CN106903917 A CN 106903917A CN 201510971996 A CN201510971996 A CN 201510971996A CN 106903917 A CN106903917 A CN 106903917A
- Authority
- CN
- China
- Prior art keywords
- wind power
- power generation
- generation blade
- sheet material
- load bearing
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0025—Producing blades or the like, e.g. blades for turbines, propellers, or wings
-
- 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
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The present invention proposes a kind of wind power generation blade and preparation method thereof.Manufacture method comprises the following steps：The band manufactured by pultrude process is provided, the volume content of the fiber in band is higher than 60%；Band is cut into the sheet material of various different lengths, and the two ends of sheet material are processed as wedge shape；Sheet material is successively stacked on the surface of plane mould according to the descending order of length to form multiple sheet layers, fiber fabric layer is provided between two adjacent sheet layers, and it is fixed to form primary load bearing member preform to stack the sheet material binding after finishing；Primary load bearing member preform is put into wind power generation blade half-shell mould, and is made the upper half-shell and housing lower half of wind power generation blade；It is complete wind power generation blade by upper half-shell, housing lower half and web bonding.Wind power generation blade preparation method of the present invention, the band by using fiber volume fraction higher than 60% prepares primary load bearing member preform, can mitigate weight reduction manufacturing cost and improve production efficiency.
Description
Technical field
The present invention relates to a kind of production process of blade, more particularly to a kind of wind power generation blade preparation method,
The invention further relates to a kind of wind power generation blade.
Background technology
With the development of wind-powered electricity generation industry, industry competition is increasingly fierce, how to reduce design cost and is manufactured into
Originally it is problem that each enterprise faces.Wherein, on the premise of product quality is ensured, how to improve master and hold
The bearing capacity and production efficiency of power structure simultaneously realize that loss of weight is key problem all the time.
Using high modulus material by as a possible selection, it is developed and applies.Vacuum is led
The main beam cap for entering shaping is made by initial common E glasses, develop into using high-modulus H glasses or
The carbon fiber of higher modulus.These high-modulus raw material are used so that the leaf weight of equal-wattage is obtained
Different degrees of reduction, also advances the continuous renewal of maximization blade.However, the performance of material is after all
Have its limit, it is impossible to unconfined increase, in addition, high performance raw material often mean that it is higher
Material cost, mutually deviates from blade low cost development trend.
Above- mentioned information is only used for strengthening the reason to background of the invention disclosed in the background section
Solution, therefore it can be including not constituting the information to prior art known to persons of ordinary skill in the art.
The content of the invention
It is an object of the present invention to overcome above-mentioned the deficiencies in the prior art, there is provided it is a kind of it is lightweight, into
This low and energy improve production efficiency wind power generation blade preparation method.
Another object of the present invention is to provide a kind of wind power generation blade using manufacture method production.
In order to realize top goal of the invention, the present invention is adopted the following technical scheme that：
According to an aspect of the present invention, a kind of wind power generation blade preparation method, comprises the following steps：
There is provided by pultrude process manufacture band, the band include resin and fiber, and fiber volume
Content is higher than 60%；
The band is cut into the sheet material of various different lengths, and the two ends of the sheet material are processed as wedge
Shape；
Sheet material is successively stacked on the surface of plane mould according to the descending order of length to be formed
Multiple sheet layers, are provided with fiber fabric layer, and will stack the piece after finishing between two adjacent sheet layers
Material binding is fixed to form primary load bearing member preform；
Primary load bearing member preform is put into wind power generation blade half-shell mould, and is made wind power generating blade
The upper half-shell and housing lower half of piece；
It is complete wind power generation blade by upper half-shell, housing lower half and web bonding.
According to an embodiment of the present invention, the thickness of the sheet material be 0.5~5mm, width be 100~
400mm。
According to an embodiment of the present invention, each described sheet layer has at least one sheet material.
According to an embodiment of the present invention, multiple sheet materials are provided with each described sheet layer, with a piece of
The splicing seams between adjacent two sheet material in material layer are less than 3mm.
According to an embodiment of the present invention, sheet material in the vertical direction in two adjacent sheet layers that
This interlocks.
According to an embodiment of the present invention, sheet material in the vertical direction in two adjacent sheet layers that
This is concordant.
According to an embodiment of the present invention, the resin that the making sheet material is used is polyurethane, vinyl
Ester or epoxy resin, the fiber that the making sheet material is used are common E glasses, H glasses or carbon fiber.
Another implementation method of the invention, wind power generation blade half is put into by primary load bearing member preform
Before housing mould, also comprise the following steps：With the side of vacuum infusion molding on a primary load bearing element mold
Primary load bearing member preform is fabricated to primary load bearing component by formula.
According to an embodiment of the present invention, the direction of the band is consistent with 0 ° of machine direction.
According to another aspect of the present invention, a kind of wind power generation blade, the wind power generation blade is by upper
Wind power generation blade preparation method is stated to be made.
As shown from the above technical solution, advantages and positive effects of the present invention are：
Wind power generation blade preparation method of the present invention, the band by using fiber volume fraction higher than 60%
Material, and band is cut into the sheet material of different length, by sheet material, successively heap poststack is made primary load bearing component
Prefabricated component, it is possible to increase the structural strength of the primary load bearing component being made in wind power generation blade, so as to carry
The bearing capacity of wind power generation blade high, and then wind power generating blade can be mitigated on the basis of optimization design
The weight of piece, also, can also avoid or reduce expensive carbon fiber in vacuum infusion molding process for compound
Use, reduce the material cost of wind electricity blade, while the preparation method reduction for simplifying wind electricity blade is artificial
Into so as to significantly decrease manufacturing cost and improve production efficiency.
Brief description of the drawings
Its example embodiment is described in detail by referring to accompanying drawing, above and other feature of the invention and excellent
Point will be apparent.
Fig. 1 is the schematic diagram of the wind power generation blade of an illustrative embodiments of the invention；
Fig. 2 is longitudinal schematic diagram of the sheet material end face of an illustrative embodiments of the invention；
Fig. 3 is the primary load bearing in the preparation method of the wind power generation blade of an illustrative embodiments of the invention
Longitudinal schematic diagram of member preform；
Fig. 4 is the cross-sectional view for showing sheet material arrangement mode in an illustrative embodiments of the invention；
Fig. 5 is that the cross section for showing sheet material arrangement mode in another exemplary implementation method of the present invention is illustrated
Figure；
Fig. 6 is that the cross section for showing sheet material arrangement mode in the third illustrative embodiments of the invention is illustrated
Figure.
In figure：1st, sheet material；2nd, sheet layer；3rd, fiber fabric layer；4th, upper half-shell；5th, lower half
Housing；6th, web；7th, primary load bearing member preform.
Specific embodiment
Example embodiment is described more fully with referring now to accompanying drawing.However, example embodiment can
Implement in a variety of forms, and be not understood as limited to implementation method set forth herein；Conversely, there is provided this
A little implementation methods cause that the present invention fully and completely, and the design of example embodiment will be passed on comprehensively
To those skilled in the art.Identical reference represents same or similar structure in figure, thus will
Omit their detailed description.
Referring to Fig. 1 to Fig. 6, the invention discloses a kind of wind power generation blade preparation method, for manufacturing
A kind of lightweight, low cost is simultaneously capable of the wind power generation blade of improve production efficiency.This wind power generation blade
Preparation method comprises the following steps：
There is provided by pultrude process manufacture band, band include resin and fiber, and fiber volume content
Higher than 60%；
Band is cut into the sheet material 1 of various different lengths, and the two ends of sheet material 1 are processed as wedge shape；
Sheet material 1 is successively stacked on the surface of plane mould according to the descending order of length to be formed
Multiple sheet layers 2, are provided with fiber fabric layer 3, and stacking is finished between two adjacent sheet layers 2
The binding of sheet material 1 afterwards is fixed to form primary load bearing member preform 7；
Primary load bearing member preform 7 is put into wind power generation blade half-shell mould, and is made wind-power electricity generation
The upper half-shell 4 and housing lower half 5 of blade；
It is complete wind power generation blade that upper half-shell 4, housing lower half 5 and web 6 are bonded.
In this wind power generation blade preparation method, when pultrusion manufactures band, the body of the fiber of the band
Product content is higher than 60%, and the volume far above vacuum infusion molding process for compound or the fiber of existing strip product contains
Amount, thus, so that it may to significantly increase structural strength, still further, the fibre in the band
The volume content of dimension preferably can be 61%~64%, within this range, band have preferable intensity and compared with
Good toughness, can reach service life most long.
Resin in band can be polyurethane, vinyl esters or epoxy resin, fiber can for common E glasses,
H glasses or carbon fiber.Also, the direction of band is consistent with 0 ° of machine direction, so ensure that in fibre
In the case that the volume content of dimension is higher can successfully pultrusion, and the intensity of band reaches most
It is high.
Because the band in the present invention can be manufactured using common E glasses, its structural strength compared with
Height, is manufactured during wind power generation blade with the band, can reduce the usage amount of band, is subtracted so as to reach
The purpose of the weight of light wind power generation blade.
Understand that band is cut into the sheet material 1 of different length when in use with reference to Fig. 2 and Fig. 3, wherein,
The thickness of sheet material 1 is 0.5~5mm, but is not limited thereto.It can be seen from Fig. 2, these sheet materials 1
Two ends when being processed as wedge shape, when wind electricity blade bears shearing force, stress distribution is uniform, bond area
Greatly, bearing capacity is high, smoother during sheet material layer to layer transition, power during wind electricity blade can be caused to run
Transmission is smoother, can avoid producing stress concentration, increases the service life.It can be seen from Fig. 3, use
When sheet material prepares main force support structure part, the length of each sheet layer is different, and sheet length is from the bottom to top gradually
Reduce, such main force support structure part longitudinal direction interface is similar to as one trapezoidal, and there is thickness at the two ends of sheet layer
Transition, wedge-shaped in the same size in same sheet layer, so that should be distributed more uniformly, bearing capacity is more
Height, reduces the concentration of internal stress.
Understood with reference to Fig. 4, Fig. 5 and Fig. 6, when sheet material 1 is successively stacked on plane mould, each piece
At least there is a sheet material 1 in material layer 2, the sheet material 1 in each sheet layer 2 there can be various arrangements
Pattern.It can be seen from Fig. 4, in an illustrative embodiments of the invention, the sheet material 1 is an entirety,
That is, having a sheet material 1 in each sheet layer 2.And it can be seen from Fig. 5 and Fig. 6, at this
In the other embodiment of invention, can also have multiple sheet materials 1, same sheet material in each sheet layer 2
The splicing seams between adjacent two sheet material 1 in layer are less than 3mm, the width of each sheet material 1 can for 100~
400mm.Sheet material in the vertical direction in two adjacent sheet layers 2 can put down each other as shown in Figure 5
It is neat or interlaced with each other as shown in Figure 6.Fiber fabric layer 3 between sheet layer 2 can select unit plane
Fabric of the product weight less than or equal to 200 grams every square metre.Fiber fabric layer 3 can be that glass fibre or carbon are fine
° fabric of dimensional fabric, fiber prepreg material etc., especially ± 45.
Sheet material 1 in the present invention bundlees fixed to form primary load bearing after stacking is finished, directly with ribbon
, can be laid on primary load bearing member preform 7 on a main force support structure part mould by member preform 7,
Then lay after flow guide system is vacuumized and irrigate resin, a primary load bearing is made with the mode of vacuum infusion molding
Component, then places into wind power generation blade half-shell mould.However, it is possible to so that the primary load bearing structure
Part prefabricated component 7 does not need the advance perfusion resin solidification, but is making the upper half shell of wind power generation blade
When body 4 and housing lower half 5, primary load bearing component is directly formed in wind power generation blade half-shell mould,
Mould and manufacturing procedure needed for thus eliminating advance encapsulating solidification, significantly reduce cost, carry
Production efficiency high.
After clearing up the surface of wind power generation blade half-shell mould, in surface wipes releasing agent, and front and rear
Release cloth is laid at the position such as edge and blade root, then lower floor is laid according to the Lay up design of wind power generation blade
Glass fabric, then places primary load bearing component positioning tool, with hanging device that primary load bearing component is pre-
Product 7 is lifted at the position of primary load bearing component in wind power generation blade, is then removed hanging device and is hung
Band, core is laid in the both sides of primary load bearing member preform 7, then removes primary load bearing member preform 7
The flexible steel plate of upper surface, fibrous ribbon can retain or remove, and then lay upper strata glass fabric,
Then release cloth, perforated membrane, flow guide system, the first vacuum diaphragm, air guide material and the second vacuum diaphragm are laid
Etc. auxiliary material, then lay vacuum diaphragm and vacuumize perfusion resin.When wind power generation blade housing has impregnated
Quan Hou, overall covering insulation material, then is heating and curing to form wind power generating blade on the second vacuum diaphragm
The housing lower half 5 of piece.Same technique makes the upper half-shell 4 of wind power generation blade, then uses structure
Upper half-shell 4, housing lower half 5, web 6 etc. are bonded together into wind power generation blade by glue.
In summary, after wind power generation blade completes, the primary load bearing member preform 7 is formed as
The primary load bearing component of the wind power generation blade.Because the fiber volume for being made the band of the primary load bearing component contains
Amount it is higher, even if thus using comparatively have compared with low modulus common E glasses or H glasses,
There can be preferable bearing capacity, the problem with high costs caused using carbon fiber can be avoided, have
There is preferable economic benefit.
Also known by Fig. 1 to Fig. 6, present embodiment also discloses a kind of wind power generation blade, the wind-force
Power generation blade wind power generation blade preparation method as disclosed in present embodiment is made, its lightweight, cost
It is low and production efficiency is higher.
More than it is particularly shown and described illustrative embodiments of the invention.It should be understood that of the invention
Disclosed implementation method is not limited to, on the contrary, it is intended to cover the essence for being included in appended claims
Various modifications and equivalent arrangements in god and scope.
Claims (10)
1. a kind of wind power generation blade preparation method, it is characterised in that comprise the following steps：
There is provided by pultrude process manufacture band, the band include resin and fiber, and fiber volume
Content is higher than 60%；
The band is cut into the sheet material of various different lengths, and the two ends of the sheet material are processed as wedge
Shape；
Sheet material is successively stacked on the surface of plane mould according to the descending order of length to be formed
Multiple sheet layers, are provided with fiber fabric layer, and will stack the piece after finishing between two adjacent sheet layers
Material binding is fixed to form primary load bearing member preform；
Primary load bearing member preform is put into wind power generation blade half-shell mould, and is made wind power generating blade
The upper half-shell and housing lower half of piece；
It is complete wind power generation blade by upper half-shell, housing lower half and web bonding.
2. wind power generation blade preparation method according to claim 1, it is characterised in that described
The thickness of sheet material is 0.5~5mm, and width is 100~400mm.
3. wind power generation blade preparation method according to claim 1, it is characterised in that each
The sheet layer has at least one sheet material.
4. wind power generation blade preparation method according to claim 1, it is characterised in that each
Multiple sheet materials are provided with the sheet layer, the splicing seams between adjacent two sheet material in same sheet layer are small
In 3mm.
5. wind power generation blade preparation method according to claim 1, it is characterised in that adjacent
Two sheet layers in sheet material in the vertical direction it is interlaced with each other.
6. wind power generation blade preparation method according to claim 1, it is characterised in that adjacent
Two sheet layers in sheet material in the vertical direction flush against one another.
7. wind power generation blade preparation method according to claim 1, it is characterised in that described
Resin is polyurethane, vinyl esters or epoxy resin, and the fiber is common E glasses, H glasses or carbon
Fiber.
8. wind power generation blade preparation method according to claim 1, it is characterised in that by master
Before load-carrying member prefabricated component is put into wind power generation semi housing mould, also comprise the following steps：In a primary load bearing
Primary load bearing member preform is fabricated to primary load bearing component with the mode of vacuum infusion molding on element mold.
9. wind power generation blade preparation method according to claim 1, it is characterised in that described
The direction of band is consistent with 0 ° of machine direction.
10. a kind of wind power generation blade, it is characterised in that the wind power generation blade is by claim 1
Any wind power generation blade preparation method is made into 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971996.5A CN106903917A (en) | 2015-12-22 | 2015-12-22 | Wind power generation blade and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510971996.5A CN106903917A (en) | 2015-12-22 | 2015-12-22 | Wind power generation blade and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106903917A true CN106903917A (en) | 2017-06-30 |
Family
ID=59199950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510971996.5A Withdrawn CN106903917A (en) | 2015-12-22 | 2015-12-22 | Wind power generation blade and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106903917A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108979951A (en) * | 2018-06-13 | 2018-12-11 | 上伟（江苏）碳纤复合材料有限公司 | A method of wind electricity blade is produced using prefabricated panels |
| CN110131095A (en) * | 2017-12-22 | 2019-08-16 | 西门子歌美飒可再生能源公司 | Pultruded fiber composite strip of non-planar profile section for blade spar cap |
| CN112440490A (en) * | 2019-08-30 | 2021-03-05 | 科思创德国股份有限公司 | Method for preparing main beam/auxiliary beam of blade of turbine fan |
| CN112512784A (en) * | 2018-06-11 | 2021-03-16 | 维斯塔斯风力系统有限公司 | Wind turbine blade spar structure and method of manufacturing the same |
| CN112611613A (en) * | 2020-11-26 | 2021-04-06 | 重庆国际复合材料股份有限公司 | Pultruded plate bonding strength test sample strip for wind power and manufacturing method thereof |
| CN113021677A (en) * | 2021-03-02 | 2021-06-25 | 三一重能股份有限公司 | Pultruded main beam, blade and manufacturing method of blade |
| CN113232321A (en) * | 2021-03-29 | 2021-08-10 | 上海电气风电集团股份有限公司 | Wind power blade shell core material prefabricating process method and shell core material prefabricating member |
| CN113374628A (en) * | 2021-06-02 | 2021-09-10 | 株洲时代新材料科技股份有限公司 | Lightweight main beam for wind power blade, main beam manufacturing method, wind power blade and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110131095A (en) * | 2017-12-22 | 2019-08-16 | 西门子歌美飒可再生能源公司 | Pultruded fiber composite strip of non-planar profile section for blade spar cap |
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| CN108979951A (en) * | 2018-06-13 | 2018-12-11 | 上伟（江苏）碳纤复合材料有限公司 | A method of wind electricity blade is produced using prefabricated panels |
| CN112440490A (en) * | 2019-08-30 | 2021-03-05 | 科思创德国股份有限公司 | Method for preparing main beam/auxiliary beam of blade of turbine fan |
| CN112611613A (en) * | 2020-11-26 | 2021-04-06 | 重庆国际复合材料股份有限公司 | Pultruded plate bonding strength test sample strip for wind power and manufacturing method thereof |
| CN113021677A (en) * | 2021-03-02 | 2021-06-25 | 三一重能股份有限公司 | Pultruded main beam, blade and manufacturing method of blade |
| CN113232321A (en) * | 2021-03-29 | 2021-08-10 | 上海电气风电集团股份有限公司 | Wind power blade shell core material prefabricating process method and shell core material prefabricating member |
| CN113374628A (en) * | 2021-06-02 | 2021-09-10 | 株洲时代新材料科技股份有限公司 | Lightweight main beam for wind power blade, main beam manufacturing method, wind power blade and manufacturing method thereof |
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