CN103147936B - Blade of wind-driven generator and there is the wind-driven generator of this blade - Google Patents
Blade of wind-driven generator and there is the wind-driven generator of this blade Download PDFInfo
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- CN103147936B CN103147936B CN201310113779.3A CN201310113779A CN103147936B CN 103147936 B CN103147936 B CN 103147936B CN 201310113779 A CN201310113779 A CN 201310113779A CN 103147936 B CN103147936 B CN 103147936B
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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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- 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
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Abstract
The invention provides a kind of blade of wind-driven generator and the wind-driven generator with this blade.Blade of wind-driven generator of the present invention comprises blade girder and leaf shell, blade girder is inner and extend from blade root to blade tip at leaf shell, leaf shell comprises aerofoil profile upper surface and aerofoil profile lower surface and aerofoil profile leading edge and airfoil trailing edge, wherein, blade has and intersects and the multiple stiffening ribs extended to aerofoil profile upper surface and aerofoil profile lower surface plane with girder, and girder and described stiffening rib form blade keel; Aerofoil profile upper surface and aerofoil profile lower surface are seamless overall structure.Lightweight filler is used in blade.Blade of the present invention adopts the stiffening rib of biomimetic features, improves the rigidity of blade, reduces manufacture and cost of transportation.
Description
Technical field
The present invention relates to a kind of blade of wind-driven generator and there is the wind-driven generator of this blade.
Background technique
Wind energy is the renewable energy sources of a kind of aboundresources, cleanliness without any pollution, and wind-power electricity generation becomes in recent years the fastest-rising energy in the world, and wind power generation industry also becomes a new industry had a extensive future.Blade of wind-driven generator is one of critical component of wind-driven generator, and its Structure and energy directly affects wind power generator efficiency and reliability.Along with the continuous research and development of MW level large fan, blade dimensions is also increasing always, and then proposes more harsh requirement to blade material and technique.
When carrying out the tectonic sieving of blade, general main consideration blade root connects and blade section form, is meeting under certain pneumatic load and operating load condition, to blade integral intensity, demeanour, stability and fatigue life aspect design.The blade section of large scale wind power machine generally adopts girder and Shell structure form.
The structure of blade of wind-driven generator, at present adopts hollow type design more, and blade wraps up by I shape or rectangle girder the leaf shell that one deck possesses aerodynamic appearance and forms, and main flexural load is born by beam cap, and leaf shell only bears a small amount of flexural load.The Placement of shear web mainly contains two kinds: up and down two panels beam cap in addition middle pectoral plate connect, or beam cap and web are made of one and become boxlike crossbeam, then by structure glue and upper and lower two panels leaf shell bonding (as shown in Figure 1).The blade of this structure mainly contains two kinds of structural types at present, i.e. structural I-beam shown in Fig. 1 (A) and the brachmorphy box beam structure shown in Fig. 1 (B).
Blade shell adopts hard bubble dough model feed collet core structure, glass fibre reinforced composion stressed-skin construction is thinner, only 2-3mm, the large beam length as load-bearing component adopts D type, rectangle, C type or I shape shape, the blade of this form with Vetas company of Denmark and Dutch CTC company for representative.
Blade shell is the glass fibre reinforced composion layer of 10-20mm, rigid foam sandwich structure is adopted in blade upper-lower casing trailing edge local, the bearing structure of this blade is leaf shell, main beam design is more weak, for rigid foam sandwich structure, be bonded to box structure with housing, the blade of this form with LM company of Denmark for representative.
Tradition hollow type two panels leaf shell structure blade, along with the lengthening of blade, can expose some problems: the excessive blade that causes of blade largest chord strong point stress destroys; Trailing edge cripling, causes blade structure to be out of shape; Bonded part structure glue between leaf shell and girder and between two panels leaf shell lost efficacy and caused trailing edge cracking destruction etc.
The blade of Vestas company and CTC company is higher for the transportation demand of blade, and because blade inlet edge strength and stiffness are lower, in transportation process, local is easy to damage.The leaf weight of LM company is comparatively large, and 20%-30% heavier than the light-duty blade of same model, manufacture cost is also higher.
Manufacture and cost of transportation high, blade integral strength and stiffness are inadequate, are the general present of current blade of wind-driven generator.
Summary of the invention
The technical problem that will solve of the present invention is to provide one can reduce manufacture and cost of transportation, improves the blade of wind-driven generator of blade integral strength and stiffness and has the wind-driven generator of this blade.
Accordingly, the invention provides a kind of blade of wind-driven generator and there is the wind-driven generator of this blade.Blade of wind-driven generator of the present invention has the keel structure of biomimetic type, and using lightweight material as packing material, whole blade-shaped becomes integrated solid vane, improves the blade integral strength and stiffness of blade.
According to a first aspect of the invention, provide a kind of blade of wind-driven generator, it comprises blade girder and leaf shell, described blade girder is inner and extend from blade root to blade tip at described leaf shell, described leaf shell comprises aerofoil profile upper surface and aerofoil profile lower surface and aerofoil profile leading edge and airfoil trailing edge, wherein
Described blade has and intersects and the multiple stiffening ribs extended to described aerofoil profile upper surface and described aerofoil profile lower surface plane with described girder, and described girder and described stiffening rib form blade keel; Described aerofoil profile upper surface and described aerofoil profile lower surface are seamless overall structure.
According to a second aspect of the invention, provide a kind of blade of wind-driven generator, wherein, described stiffening rib is the sheet structure of stretching out to described aerofoil profile front edge side and/or described airfoil trailing edge side from described girder.
According to a third aspect of the present invention, provide a kind of blade of wind-driven generator, wherein, described girder is wound with glass fiber cloth, described stiffening rib is the sheet structure by being formed from described glass fiber cloth cutting and from described girder stripping.
According to a fourth aspect of the present invention, provide a kind of blade of wind-driven generator, wherein, described stiffening rib is have the sheet structure that the girder corresponding with described girder section shape is connected in series hole, and described stiffening rib is connected in series by described girder serial connection hole and is fixed on described girder.
According to a fifth aspect of the present invention, provide a kind of blade of wind-driven generator, wherein, described girder section shape is circular, oval or polygonal, is provided with lightweight filler between described stiffening rib.
According to a sixth aspect of the invention, provide a kind of blade of wind-driven generator, wherein, described lightweight filler is provided with multiple guiding gutter, makes it fully invade profit between girder and packing material during for pouring into liquid lamination coating when manufacturing blade to described blade interior
According to a seventh aspect of the present invention, provide a kind of blade of wind-driven generator, wherein, described stiffening rib is set to interlock to described aerofoil profile front edge side and described airfoil trailing edge side and stretches out.
According to an eighth aspect of the present invention, provide a kind of blade of wind-driven generator, wherein, the angle of described stiffening rib and described girder is being right angle or acute angle towards blade tip direction.
According to a ninth aspect of the present invention, provide a kind of blade of wind-driven generator, wherein, the quantity of described stiffening rib is determined according to wind environment and design power.
According to a tenth aspect of the present invention, provide a kind of blade of wind-driven generator, wherein, the cross-section area of described girder is identical or reduce gradually from blade root to blade tip.
According to an eleventh aspect of the present invention, provide a kind of blade of wind-driven generator, wherein, the periphery of described stiffening rib and described leaf shell close contact.
According to a twelfth aspect of the present invention, provide a kind of blade of wind-driven generator, wherein, described blade has lightning conductor structure.
According to another aspect of the present invention, a kind of wind-driven generator with blade above described in any one aspect is provided.
The invention provides a kind of biomimetic type blade of wind-driven generator with special keel structure stiffening rib, make blade have the ability of stronger opposing bending deformation.Overcome the deficiency of existing blade of wind-driven generator strength and stiffness.
The dynamics shell of the present invention by blade and the design of inner supporting structure integration, when the aerodynamic appearance that guarantee blade is good, improve the strength and stability of blade, and then can extend the working life of blade.
Leaf shape reinforcing rib structure stretches out from girder and is supported between leaf shell upper and lower surface, strengthens the rigidity in bending blade direction, and can bear larger torque load.Stiffening rib in the present invention is sheet, and stiffening rib is that plane extends to blade and blade shell.Such structure makes blade and blade shell there are many places by stiffening rib and girder compact siro spinning technology, forms a kind of keel of biomimetic features, reaches the effect that leaf shell upper stress is effectively delivered to girder.
The guiding gutter of packing material root between through adjacent two panels stiffening rib, to improve instillation process process, can make liquid lamination coating fully pour into and infiltrates whole blade.
Blade of the present invention uses lightweight filler, as foamed plastics, alleviates leaf weight, thus also reduces manufacture and cost of transportation.
Accompanying drawing explanation
Fig. 1 (A)-(B) is the cross section structure of blade of wind-driven generator in present technology;
Fig. 2 is the keel structure schematic diagram of the blade of wind-driven generator according to an embodiment of the invention;
Fig. 3 is the keel structure close-up schematic view of the blade of wind-driven generator according to an embodiment of the invention;
Fig. 4 (A)-(B) is the schematic cross-section of the blade of wind-driven generator according to an embodiment of the invention;
Fig. 5 (A)-(B) is the stiffening rib schematic diagram of the blade of wind-driven generator according to an embodiment of the invention;
Fig. 6 is the stiffening rib schematic diagram of blade of wind-driven generator according to another implementation of the invention;
Fig. 7 is the leaf shell fibre cloth interfolded schematic diagram in an embodiment of the invention;
Fig. 8 is the schematic diagram that the stiffening rib folding bag in an embodiment of the invention is rolled on foam-filled material;
Fig. 9 hides the girder after foam-filled material and reinforcing rib structure in an embodiment of the invention;
Figure 10 is a packing material cell schematics in an embodiment of the invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with embodiment also with reference to accompanying drawing, the present invention is described in more detail.Should be appreciated that, these describe just exemplary, and do not really want to limit the scope of the invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present invention.
The cross section structure that Fig. 1 (A)-(B) is prior art blade of wind-driven generator.Wherein, Fig. 1 (A) is structural I-beam, and it comprises leading edge 105 and the trailing edge 106 of web 101, beam cap 102, leaf shell 104 and leaf shell.Fig. 1 (B) is brachmorphy box beam structure, and it comprises leading edge 115 and the trailing edge 116 of web 111, beam cap 112, leaf shell 114 and leaf shell.
Fig. 2 is the keel structure schematic diagram of the blade of wind-driven generator according to an embodiment of the invention.Blade on wind-driven generator generally comprises: girder 1 and leaf shell 4, and girder 1 is inner and extend from blade root to blade tip at leaf shell 4, and leaf shell 4 comprises aerofoil profile upper surface and aerofoil profile lower surface and aerofoil profile leading edge and airfoil trailing edge (do not indicate in figure, can with reference to figure 1).In blade of wind-driven generator of the present invention, also comprise and intersecting and the multiple stiffening ribs 2 extended to aerofoil profile upper surface and aerofoil profile lower surface plane with girder, girder 1 and stiffening rib 2 form blade keel 3; Aerofoil profile upper surface and aerofoil profile lower surface are formed in one.Here it is important to note that the stiffening rib in the present invention is sheet, stiffening rib is the complete plane or the curved surface curved surface that extend to leaf shell from girder.Such structure makes blade and blade shell there are many places by stiffening rib and girder compact siro spinning technology, reach the effect that leaf shell upper stress is effectively delivered to girder, and the aerofoil profile upper surface of blade and aerofoil profile lower surface are with the overall structure of internal mold sizing, glass fiber cloth parcel girder and packing material form core rod, be positioned in mould and carry out priming by vacuum formation integrative-structure, not the bonding of traditional two panels up and down, add the intensity of structure and avoid two panels leaf shell structure and use structure glue bonding that the blade damage caused that lost efficacy occurs.
In an embodiment of the invention, the stiffening rib 2 of blade of wind-driven generator is the sheet structure of stretching out to aerofoil profile front edge side and/or airfoil trailing edge side from girder 1.Stiffening rib shown in Fig. 2 extends support front surface and rear surface to side, but stiffening rib of the present invention is not limited to this, but can extend to both sides, as shown in Figure 6, stiffening rib can stretch out to aerofoil profile front edge side and airfoil trailing edge side simultaneously, will be described in detail later.
In an embodiment of the invention, the girder 1 of blade of wind-driven generator is wound with glass fiber cloth, stiffening rib 2 is the sheet structures by being formed from glass fiber cloth cutting and from girder stripping.As shown in Figure 3, the keel structure close-up schematic view of the blade of wind-driven generator according to an embodiment of the invention is shown.Wherein, stiffening rib 2 is the sheet structure by being formed from glass fiber cloth cutting and from girder stripping.Its shape is roughly leaf blade tip shape, whole sheet structure and girder be right angle or acute angle to the angle between blade tip direction, be preferably acute angle.Sheet structure can be plane, also can be curved surface.The contour edge of sheet structure support shaping after vane foil upper and lower surface, make the stress of blade upper and lower surface pass to girder by stiffening rib.Preferably, the sheet structure edge formed from glass fiber cloth cutting and from girder stripping exceeds packing material end face, what exceed is partially foldedly attached to packing material edge (as shown in Figure 8), and now stiffening rib major component remains plane and to extend and crossing with leaf shell.When sheet structure and girder be acute angle to the angle between blade tip direction time, preferably 45 degree to 60 degree, stiffening rib and girder form " y " font, the stress near blade tip on blade is made to pass to girder to blade root direction, the stress that blade is subject near the part of blade tip reduces, thus reducing the possibility of blade broken, whole keel structure, just as the growth structure of branch, defines a kind of biomimetic type blade.And, stiffening rib is from glass fiber cloth cutting and the sheet structure peeled off from girder and formed, and the portion envelops exceeding packing material cross section lives packing material, and stiffening rib can not rotate relative to girder, stress on leaf shell is more effectively delivered to girder, and enhances the rigidity of whole blade.Preprocessing guiding gutter (as shown in Figure 10) on the face that packing material is fitted with girder so that when pouring into liquid resin material in blade forming mould, liquid material is fully filled between each stiffening rib, packing material, stiffening rib and leaf shell are held tightly together, forms firmly biomimetic type blade of wind-driven generator.Packing material root can be provided with guiding gutter 6.
The dynamics shell of the present invention by blade and the design of inner supporting structure integration, when the aerodynamic appearance that guarantee blade is good, improve the strength and stability of blade, and then can extend the working life of blade.
The shaping rear parcel glass fiber cloth of girder, and cut out leaf blade tip shape stiffening rib shape at left and right side, root is connected with girder, stiffening rib shape peels off girder, stiffening rib glass fiber cloth can beat pod apertures, lightweight filler is sandwiched as foamed plastics between stiffening rib, can preprocessing guiding gutter on packing material corresponding position.Pod apertures is not limited to the root of lightweight filler, also can arrange pod apertures in centre, pours into liquid lamination coating, and packing material, stiffening rib and leaf shell are held tightly together.
In the present embodiment, with the staggered parcel of glass fiber cloth, make girder, stiffening rib, packing material and shell form a complete core rod, wrap up plastic pellicle outside and form containing vacuum bag and demolding layer, be positioned in blade mold, carry out vacuumizing form.
Sheet reinforcing rib structure stretches out from girder and is supported between leaf shell upper and lower surface, the rigidity of reinforced blade bending direction, and can bear larger torque load.Between the through blade head and the tail of guiding gutter of packing material and stiffening rib root or other positions, improve instillation process process, liquid lamination coating is fully poured into and infiltrates whole blade.
As Fig. 4, show the schematic cross-section of the blade of wind-driven generator according to an embodiment of the invention.After blade forming, liquid resin solidifies, and keel, lightweight filler and leaf shell are closely linked.In an embodiment of the invention, the girder of blade of wind-driven generator can be Wrapping formed on Stetch Wrapping Machine, or form in a mold.The shaping rear parcel glass fiber cloth of girder, and cut out leaf blade tip shape stiffening rib shape at left and right side, root is connected with girder, stiffening rib shape peels off girder, lightweight filler is sandwiched between stiffening rib, as foamed plastics, preprocessing guiding gutter on packing material corresponding position.With the staggered parcel of glass fiber cloth, make girder, stiffening rib, packing material and shell form a complete core rod, wrap up plastic pellicle outside and form containing vacuum bag and demolding layer, be positioned in blade mold, carry out vacuumizing form.Like this, whole blade becomes to be integrated.Fig. 4 shows the schematic perspective view after blocking in this integral structure.In structure shown in Fig. 3 and Fig. 4, stiffening rib is that the fibre cloth cutting be wound around from girder obtains, and stiffening rib interlocks to blade inlet edge or trailing edge extension.But the present invention is not limited to this structure.Stiffening rib may not be the fibre cloth cutting be wound around from girder and obtains, and the sheet structure manufactured in advance, this sheet structure has the girder identical with girder vertical cross-section or sectional shape of cutting sth. askew and is connected in series hole, when manufacturing blade, these sheet structures to be through on girder and the stiffening rib that can be formed and there is similar functions that is fixed up.Further, stiffening rib can have multiple pod apertures, for when pouring into liquid material, liquid towards material carries out water conservancy diversion, to make liquid material fully flow into each space in whole blade.
Fig. 5 (A)-(B) is the stiffening rib schematic diagram of blade of wind-driven generator according to another implementation of the invention.
In yet another embodiment of the present invention, the stiffening rib of blade of wind-driven generator is have the sheet structure that the girder corresponding with the shape in the vertical cross-section of girder or cross section of cutting sth. askew is connected in series hole 211, and these stiffening ribs are connected in series by girder serial connection hole and are fixed on girder.As shown in Fig. 5 (A)-(B), when reinforcing rib design be to side extend and vertical with girder time, girder serial connection hole shape be girder orthogonal cross-sectional shape, when girder section is circular, this serial connection Kong Zewei is circular, and during for oval or polygonal, serial connection hole is also oval or polygonal.The profile 212,213 of sheet stiffening rib is the shape that girder extends to leaf shell plane, until support to leaf shell.When girder section is circular, but when stiffening rib and girder acutangulate, then the shape being connected in series hole is that girder is cut sth. askew with this acute angle the shape in gained cross section.Fig. 5 (A) is the stiffening rib schematic diagram extended to blade inlet edge side; Fig. 5 (B) is the stiffening rib schematic diagram extended to trailing edge side.Sheet stiffening rib can be made by fiber glass material or metal or alloy or other any suitable materials make.And stiffening rib can arrange multiple pod apertures, not shown.When injecting liquid lamination coating, these pod apertures make stiffening rib and packing material be bonded as one, and blade is firmer, and integrated performance is better.
Fig. 6 is the stiffening rib schematic diagram of blade of wind-driven generator according to another implementation of the invention.This stiffening rib carries out plane extension to blade inlet edge and trailing edge both sides simultaneously, and profile 214 supports to leaf shell, and the shape in serial connection hole 211 is corresponding with girder section shape.
The quantity of the stiffening rib on every root blade is determined according to wind environment and design power.When the area that wind-force is less, the quantity of stiffening rib can be reduced.
In blade of wind-driven generator of the present invention, the cross-section area of girder is identical or reduce gradually from blade root to blade tip.When the design power of wind-driven generator is larger, the blade of needs is longer, preferably adopts the structure that the cross-section area of girder reduces gradually from blade root to blade tip.When blade is shorter, the structure that the cross-section area of girder is identical from blade root to blade tip can be adopted.
Blade of the present invention is a kind of solid construction, and comprise the keel structure of girder and train of thought type stiffening rib composition, leaf shell and lightweight filler, three parts form a seamless entirety.The train of thought type stiffening rib that girder and girder stretch out is the main support structure of blade, lightweight filler to be filled in the space of girder and stiffening rib and to pour into integral, also can play certain supporting effect to stiffening rib and leaf shell, prevent unstability, thus add the bulk strength of blade.
Leaf shell of the present invention is that one is shaped with internal mold, entirety (as shown in Figure 7) structure of glass fiber cloth interfolded parcel core rod, not traditional two panels up and down, add the intensity of structure and avoid two panels leaf shell structure and use structure glue bonding that the blade damage that causes of losing efficacy occurs.Fig. 7 is leaf shell interfolded schematic diagram.Leaf shell is formed by fibre cloth interfolded parcel core rod.
The shape of stiffening rib is the sheet structure of the leaf blade tip shape stretched out from girder, be supported on the upper and lower surface of leaf shell, and leaf shell pours into by liquid lamination coating (resin) integral.
Fig. 8 is the schematic diagram that the stiffening rib folding bag in an embodiment of the invention is rolled on foam-filled material.When stiffening rib be the fibre cloth cutting be wound around from girder obtain time, exceed the partially folded of packing material cross section and be wrapped on foam-filled material.
Fig. 9 hides the girder after foam-filled material and reinforcing rib structure in an embodiment of the invention.Can see, when stiffening rib be the fibre cloth cutting be wound around from described girder obtain time, exceed the partially folded situation being attached to packing material edge of packing material end face.
Figure 10 is a packing material cell schematics in an embodiment of the invention.Can clearly see, guiding gutter 6 runs through the head and the tail of packing material.As a kind of optimal way, the intersection guiding gutter that each guiding gutter is interconnected can also be set.Alternatively mode, can also arrange the pod apertures parallel with guiding gutter at packing material and the corresponding position of stiffening rib, not shown.
In blade, be filled in the space of enclosure interior girder and stiffening rib formation with lightweight filler, semicircle or trapezoidal guiding gutter is provided with at stiffening rib and packing material root, or be provided with the pod apertures run through between girder and packing material in other positions, be beneficial to the circulation of liquid lamination coating in filling process to realize complete wetting.
According to another implementation of the invention, in blade, lightning-arrest structure can be set.Lightning-arrest structure can be the plain conductor from blade tip to blade root.
According to another implementation of the invention, the invention provides a kind of wind-driven generator, this wind-driven generator has the blade in the respective embodiments described above.
Should be understood that, above-mentioned embodiment of the present invention only for exemplary illustration or explain principle of the present invention, and is not construed as limiting the invention.Therefore, any amendment made when without departing from the spirit and scope of the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.In addition, claims of the present invention be intended to contain fall into claims scope and border or this scope and border equivalents in whole change and modification.
Claims (10)
1. a blade of wind-driven generator, it comprises blade girder and leaf shell, and described blade girder is inner and extend from blade root to blade tip at described leaf shell, and described leaf shell comprises aerofoil profile upper surface and aerofoil profile lower surface and aerofoil profile leading edge and airfoil trailing edge, it is characterized in that:
Described blade has and intersects and the multiple stiffening ribs extended to described aerofoil profile upper surface and described aerofoil profile lower surface plane with described girder, and described girder and described stiffening rib form blade keel; Described aerofoil profile upper surface and described aerofoil profile lower surface are seamless overall structure;
Described stiffening rib is the sheet structure of stretching out to described aerofoil profile front edge side and/or described airfoil trailing edge side from described girder;
Described girder is wound with glass fiber cloth, and described stiffening rib is the sheet structure by being formed from described glass fiber cloth cutting and from described girder stripping;
Described stiffening rib is have the sheet structure that the girder corresponding with described girder section shape is connected in series hole, and described stiffening rib is connected in series by described girder serial connection hole and is fixed on described girder.
2. blade as claimed in claim 1, is characterized in that:
Described girder section shape is circular, oval or polygonal, is provided with lightweight filler between described stiffening rib.
3. blade as claimed in claim 2, is characterized in that:
Described lightweight filler is provided with multiple guiding gutter, makes it fully invade profit between girder and packing material during for pouring into liquid lamination coating when manufacturing blade to described blade interior.
4. blade as claimed in claim 3, is characterized in that:
Described stiffening rib is set to interlock to described aerofoil profile front edge side and described airfoil trailing edge side and stretches out.
5. blade as claimed in claim 4, is characterized in that:
The angle of described stiffening rib and described girder is being right angle or acute angle towards blade tip direction.
6. blade as claimed in claim 5, is characterized in that:
The quantity of described stiffening rib is determined according to wind environment and design power.
7. blade as claimed in claim 6, is characterized in that:
The cross-section area of described girder is identical or reduce gradually from blade root to blade tip.
8. blade as claimed in claim 7, is characterized in that:
The periphery of described stiffening rib and described leaf shell close contact.
9., as the blade in claim 3 to 8 as described in any one, it is characterized in that:
Described blade has lightning conductor structure.
10. a wind-driven generator, is characterized in that:
Described wind-driven generator has claim 1 to 9 blade described in any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310113779.3A CN103147936B (en) | 2013-04-02 | 2013-04-02 | Blade of wind-driven generator and there is the wind-driven generator of this blade |
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| CN201310113779.3A CN103147936B (en) | 2013-04-02 | 2013-04-02 | Blade of wind-driven generator and there is the wind-driven generator of this blade |
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| CN103147936B true CN103147936B (en) | 2015-10-28 |
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| CA2954716C (en) * | 2014-07-14 | 2022-10-18 | Lm Wp Patent Holding A/S | A profile wedge for attachment of an aeroshell extender piece |
| CN105893711A (en) * | 2016-05-07 | 2016-08-24 | 安徽科技学院 | Wind power generator blade and structural design method thereof |
| CN106704094B (en) * | 2017-03-15 | 2023-09-29 | 湖南工学院 | Palmaceae plant blade type wind driven generator blade and manufacturing method thereof |
| CN110617175A (en) * | 2019-10-21 | 2019-12-27 | 张跃 | Wind power generation blade |
| CN111188727B (en) * | 2020-01-13 | 2021-09-24 | 上海电气风电集团股份有限公司 | Wind turbine blade root structure and production method thereof |
| CN112065658B (en) * | 2020-08-24 | 2022-07-08 | 河南恒聚新能源设备有限公司 | Moving blade and vertical axis turbine wind power generation device |
| CN113074089B (en) * | 2021-03-19 | 2022-05-03 | 三一重能股份有限公司 | Blade main beam layer structure, blade, wind turbine generator and main beam forming process |
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| EP2182203A2 (en) * | 2008-11-03 | 2010-05-05 | Energiekontor AG | Wind turbine rotor blade with an extension |
| CN102094748A (en) * | 2009-12-14 | 2011-06-15 | 通用电气公司 | A fluid turbine blade and method of providing the same |
| CN102141001A (en) * | 2011-03-25 | 2011-08-03 | 中国科学院工程热物理研究所 | Wind machine blade and method for designing same |
| CN203175771U (en) * | 2013-04-02 | 2013-09-04 | 南京飓能电控自动化设备制造有限公司 | Wind driven generator blade and wind driven generator provide with same |
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|---|---|
| CN103147936A (en) | 2013-06-12 |
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Effective date of registration: 20160310 Address after: 211113 Tao Dong Road, Nanjing Airport Industrial Zone, Jiangning, Jiangsu Patentee after: Nanjing High Accurate Drive Electromechanical Automation Equipment Co., Ltd. Address before: 211100, No. 1 East Tianyuan Road, Jiangning District, Jiangsu, Nanjing Patentee before: Nanjing Juneng Electric Control Automation Equipment Manufacturing Co., Ltd. |
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Application publication date: 20130612 Assignee: Siyang high pass Motor Manufacturing Co., Ltd. Assignor: Nanjing High Accurate Drive Electromechanical Automation Equipment Co., Ltd. Contract record no.: 2018320000034 Denomination of invention: Wind driven generator blade and wind driven generator with same Granted publication date: 20151028 License type: Exclusive License Record date: 20180302 |
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