CN203175771U - Wind driven generator blade and wind driven generator provide with same - Google Patents
Wind driven generator blade and wind driven generator provide with same Download PDFInfo
- Publication number
- CN203175771U CN203175771U CN201320161274XU CN201320161274U CN203175771U CN 203175771 U CN203175771 U CN 203175771U CN 201320161274X U CN201320161274X U CN 201320161274XU CN 201320161274 U CN201320161274 U CN 201320161274U CN 203175771 U CN203175771 U CN 203175771U
- Authority
- CN
- China
- Prior art keywords
- blade
- girder
- stiffening rib
- driven generator
- wind
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
Landscapes
- Wind Motors (AREA)
Abstract
The utility model provides a wind driven generator blade and a wind driven generator provided with the same. The wind driven generator blade provided by the utility model comprises a blade main beam and a blade shell, wherein the blade main beam is arranged inside the blade shell, and extends from a blade root to a blade point; the blade shell comprises a swing-shaped upper surface, a swing-shaped lower surface, a swing-shaped front edge and a swing-shaped back edge; the blade is provided with a plurality of reinforcing ribs which intersect with the main beam and extend towards the swing-shaped upper surface and the swing-shaped lower surface; the main beam and the reinforcing ribs construct a blade keel; the swing-shaped upper surface and the swing-shaped lower surface have seamless integral structures; and a light filling material is filled into the blade. According to the wind driven generator blade, the reinforcing ribs having bionic structures are adopted, so that the rigidity of the blade is improved, and manufacturing and transportation costs are reduced.
Description
Technical field
The wind-driven generator that the utility model relates to a kind of blade of wind-driven generator and has 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 the wind-power electricity generation industry also becomes a new industry that has a extensive future.Blade of wind-driven generator is one of critical component of wind-driven generator, and its structure and technology directly influence 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 blade material and technology have been proposed more harsh requirement.
Carry out structure when design of blade, general main consideration blade root connects and the blade section form, satisfying under certain pneumatic load and the operating load condition, to blade integral intensity, demeanour, stability and fatigue life the 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, many employing hollow types design at present, blade is made of the leaf shell that I shape or rectangle girder parcel one deck possess aerodynamic appearance, and main flexural load is born by the beam cap, and the leaf shell is only born a small amount of flexural load.The Placement of shear web mainly contains two kinds: up and down two beam caps in addition middle pectoral plate connect, or beam cap and web be made of one and become the boxlike crossbeam, again by structure glue and two leaf shells bonding (as shown in Figure 1) up and down.The blade of this structure mainly contains two kinds of structural types at present, i.e. brachmorphy box beam structure shown in structural I-beam shown in Fig. 1 (A) and Fig. 1 (B).
Blade shell adopts hard bubble dough model feed collet core structure, the glass fibre reinforced composion stressed-skin construction is thinner, 2-3mm only adopts D type, rectangle, C type or I shape shape as the big beam length of load-bearing component, and the blade of this form is representative with Denmark Vetas company and Dutch CTC company.
Blade shell is the glass fibre reinforced composion layer of 10-20mm, the local rigid foam sandwich structure that adopts of lower shell body trailing edge on blade, the bearing structure of this blade is the leaf shell, a little less than the girder design, be rigid foam sandwich structure, be bonded to box structure with housing, the blade of this form is representative with Denmark LM company.
Two leaf shell structures of tradition hollow type blade can expose some problems along with the lengthening of blade: the excessive blade that causes of blade largest chord strong point stress destroys; The trailing edge cripling causes the blade structure distortion; Bonded part structure glue between leaf shell and the girder and between two leaf shells 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, because the blade inlet edge strength and stiffness are lower, the part is easy to damage in transportation process.The leaf weight of LM company is bigger, and than the heavy 20%-30% of light-duty blade of same model, manufacture cost is also higher.
Make and the cost of transportation height, the blade integral strength and stiffness are not enough, are the now general of present blade of wind-driven generator.
The model utility content
The technical problem that will solve of the present utility model provides a kind of can the reduction and makes and cost of transportation, improves the blade of wind-driven generator of blade integral strength and stiffness and the wind-driven generator with this blade.
Accordingly, the utility model wind-driven generator of a kind of blade of wind-driven generator being provided and having had this blade.Blade of wind-driven generator of the present utility model has the keel structure of biomimetic type, and with lightweight material as packing material, the solid vane of forming as one of whole blade improves the blade integral strength and stiffness of blade.
According to first aspect of the present utility model, a kind of blade of wind-driven generator is provided, it comprises blade girder and leaf shell, described blade girder extends to blade tip in described leaf shell inside and from blade root, 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 a plurality of stiffening ribs that intersect with described girder and extend to described aerofoil profile upper surface and described aerofoil profile lower surface plane, described girder and described stiffening rib formation blade keel; Described aerofoil profile upper surface and described aerofoil profile lower surface are seamless overall structure.
According to second aspect of the present utility model, a kind of blade of wind-driven generator is provided, wherein, described stiffening rib is for from described girder to described aerofoil profile front edge side and/or the described airfoil trailing edge side sheet structure of stretching out.
According to the 3rd aspect of the present utility model, a kind of blade of wind-driven generator is provided, wherein, be wound with glass fiber cloth on the described girder, described stiffening rib is by peel off the sheet structure that forms from described glass fiber cloth cutting and from described girder.
According to the 4th aspect of the present utility model, a kind of blade of wind-driven generator is provided, wherein, described stiffening rib is the sheet structure with girder serial connection hole corresponding with described girder section shape, and described stiffening rib is connected in series and is fixed on the described girder by described girder serial connection hole.
According to the 5th aspect of the present utility model, a kind of blade of wind-driven generator is provided, wherein, described girder section is shaped as circle, ellipse or polygonal, is provided with lightweight filler between the described stiffening rib.
According to the 6th aspect of the present utility model, a kind of blade of wind-driven generator is provided, wherein, described lightweight filler is provided with a plurality of guiding gutters, is used for making when described blade interior is poured into liquid lamination coating when making blade it fully to invade profit between girder and the packing material
According to the 7th aspect of the present utility model, a kind of blade of wind-driven generator is provided, wherein, described stiffening rib is set to interlock and stretches out to described aerofoil profile front edge side and described airfoil trailing edge side.
According to the 8th aspect of the present utility model, a kind of blade of wind-driven generator is provided, wherein, the angle of described stiffening rib and described girder is being right angle or acute angle towards the blade tip direction.
According to the 9th aspect of the present utility model, a kind of blade of wind-driven generator is provided, wherein, the quantity of described stiffening rib is determined according to wind environment and design power.
According to the of the present utility model ten aspect, a kind of blade of wind-driven generator is provided, wherein, the cross-section area of described girder is identical or reduce gradually from the blade root to the blade tip.
According to the 11 aspect of the present utility model, a kind of blade of wind-driven generator is provided, wherein, the periphery of described stiffening rib closely contacts with described leaf shell.
According to the 12 aspect of the present utility model, a kind of blade of wind-driven generator is provided, wherein, described blade has the lightning conductor structure.
According to another aspect of the present utility model, provide a kind of wind-driven generator with top any one described blade in aspect.
The utility model provides a kind of biomimetic type blade of wind-driven generator that has special keel structure stiffening rib, makes blade have the ability of stronger opposing bending deformation.Overcome the deficiency of existing blade of wind-driven generator strength and stiffness.
The utility model under the situation that guarantees the aerodynamic appearance that blade is good, has improved dynamics shell and the integrated design of inner supporting structure of blade intensity and the stability of blade, and then can prolong the working life of blade.
The leaf shape reinforcing rib structure stretches out from girder and is supported between the leaf shell upper and lower surface, has strengthened the rigidity of bending blade direction, and can bear bigger torque load.Stiffening rib in the utility model is sheet, and stiffening rib is that the plane extends to the blade and blade shell.Such structure makes has many places closely to be connected with girder by stiffening rib on the blade and blade shell, forms a kind of keel of biomimetic features, reaches the effect that leaf shell upper stress effectively is delivered to girder.
The guiding gutter of packing material root can connect between adjacent two stiffening ribs, to improve the instillation process process, makes liquid lamination coating fully pour into and soaks into whole blade.
Blade of the present utility model uses lightweight filler, as foamed plastics, alleviates leaf weight, makes and cost of transportation thereby also reduce.
Description of drawings
Fig. 1 (A)-(B) is the cross section structure of blade of wind-driven generator in the present technology;
Fig. 2 is the keel structure schematic representation according to the blade of wind-driven generator of a mode of execution of the present utility model;
Fig. 3 is according to the local enlarged diagram of the keel structure of the blade of wind-driven generator of a mode of execution of the present utility model;
Fig. 4 (A)-(B) is the schematic cross-section according to the blade of wind-driven generator of a mode of execution of the present utility model;
Fig. 5 (A)-(B) is the stiffening rib schematic representation according to the blade of wind-driven generator of a mode of execution of the present utility model;
Fig. 6 is the stiffening rib schematic representation according to the blade of wind-driven generator of another mode of execution of the present utility model;
Fig. 7 is the leaf shell fibre cloth interfolded schematic representation in the mode of execution of the present utility model;
Fig. 8 is that the stiffening rib folding bag in the mode of execution of the present utility model is rolled in the schematic representation on the foam-filled material;
Fig. 9 is girder and the reinforcing rib structure behind the hiding foam-filled material in the mode of execution of the present utility model;
Figure 10 is a packing material cell schematics in the mode of execution of the present utility model.
Embodiment
For making the purpose of this utility model, technological scheme and advantage more cheer and bright, below in conjunction with embodiment and with reference to accompanying drawing, the utility model is further described.Should be appreciated that these descriptions are exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, omitted the description to known features and technology, to avoid unnecessarily obscuring concept of the present utility model.
Fig. 1 (A)-(B) is the cross section structure of 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 representation according to the blade of wind-driven generator of a mode of execution of the present utility model.Blade on the wind-driven generator generally comprises: girder 1 and leaf shell 4, girder 1 are inner and extend to blade tip from blade root 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 (indicate among the figure, can with reference to figure 1).In blade of wind-driven generator of the present utility model, also comprise a plurality of stiffening ribs 2 that intersect with girder and extend to aerofoil profile upper surface and aerofoil profile lower surface plane, girder 1 constitutes blade keel 3 with stiffening rib 2; Aerofoil profile upper surface and aerofoil profile lower surface are formed in one.What will pay special attention to here is, the stiffening rib in the utility model is sheet, and stiffening rib is for extending to complete plane or the curved surface curved surface of leaf shell from girder.Such structure makes has many places closely to be connected with girder by stiffening rib on the blade and blade shell, reach the effect that leaf shell upper stress effectively is delivered to girder, and the aerofoil profile upper surface of blade and aerofoil profile lower surface are the overall structure with the internal mold typing, glass fiber cloth parcel girder and packing material form core rod, be positioned over and carry out priming by vacuum formation integrative-structure in the mould, not traditional two bonding, as to have increased the intensity of structure and avoided the bonding generation of two leaf shell structures use structure glue to lose efficacy and cause blade damages up and down.
In a mode of execution of the present utility model, the stiffening rib of blade of wind-driven generator 2 is for from girder 1 to the aerofoil profile front edge side and/or the airfoil trailing edge side sheet structure of stretching out.Stiffening rib shown in Fig. 2 extends support front surface and rear surface to a side, but stiffening rib of the present utility model 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, and the back will be described in detail.
In a mode of execution of the present utility model, be wound with glass fiber cloth on the girder 1 of blade of wind-driven generator, stiffening rib 2 is by peel off the sheet structure that forms from the glass fiber cloth cutting and from girder.As shown in Figure 3, show according to the local enlarged diagram of the keel structure of the blade of wind-driven generator of a mode of execution of the present utility model.Wherein, stiffening rib 2 is for by peeling off the sheet structure that forms from glass fiber cloth cutting and from girder.Its shape is roughly leaf blade tip shape, and the angle between the blade tip direction of whole sheet structure and girder is right angle or acute angle, is preferably acute angle.Sheet structure can be the plane, also can be curved surface.The contour edge of sheet structure supports the vane foil upper and lower surface after the moulding, makes the stress of blade upper and lower surface pass to girder by stiffening rib.Preferably, peel off and the sheet structure edge that forms exceeds the packing material end face from glass fiber cloth cutting and from girder, the partially folded packing material edge (as shown in Figure 8) that is attached to that exceeds, this moment, the stiffening rib major component remained plane extension and crossing with the leaf shell.When the angle between the blade tip direction of sheet structure and girder is acute angle, preferred 45 degree are to 60 degree, stiffening rib and girder form " y " font, make that the stress near blade tip passes to girder to the blade root direction on the blade, make blade reduce near the stress that the part of blade tip is subjected to, thereby reduce the possibility of blade broken, whole keel structure has formed a kind of biomimetic type blade just as the growth structure of branch.And, stiffening rib is to peel off and the sheet structure that forms from glass fiber cloth cutting and from girder, and the part that exceeds the packing material cross section wraps packing material, and stiffening rib can not rotate relative to girder, the more effective girder that is delivered to of stress on the leaf shell, and strengthened the rigidity of whole blade.At preprocessing guiding gutter (as shown in figure 10) on the face of fitting with girder on the packing material so that when perfusion liquid resin material in the blade forming mould, liquid material fully is filled between each stiffening rib, make packing material, stiffening rib and leaf shell hold tightly together, form firm biomimetic type blade of wind-driven generator.The packing material root can be provided with guiding gutter 6.
The utility model under the situation that guarantees the aerodynamic appearance that blade is good, improves dynamics shell and the integrated design of inner supporting structure of blade intensity and the stability of blade, and then can prolong the working life of blade.
Wrap up glass fiber cloth after the girder moulding, and cut out leaf blade tip shape stiffening rib shape at left and right side, root links to each other with girder, the stiffening rib shape is peeled off girder, can beat pod apertures on the stiffening rib glass fiber cloth, sandwich lightweight filler such as foamed plastics between the stiffening rib, can the preprocessing guiding gutter on the packing material corresponding position.Pod apertures is not limited to the root of lightweight filler, also pod apertures can be set in the 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 sealing vacuum bag and demolding layer, be positioned in the blade mold, vacuumize form.
The sheet reinforcing rib structure stretches out from girder and is supported between the leaf shell upper and lower surface, the rigidity of reinforced blade bending direction, and can bear bigger torque load.The guiding gutter of packing material and stiffening rib root or other positions connects between the blade head and the tail, has improved the instillation process process, makes liquid lamination coating fully pour into and soaks into whole blade.
As Fig. 4, show the schematic cross-section according to the blade of wind-driven generator of a mode of execution of the present utility model.After the blade forming, liquid resin solidifies, and keel, lightweight filler and leaf shell are closely linked.In a mode of execution of the present utility model, the girder of blade of wind-driven generator can be Wrapping formed on Stetch Wrapping Machine, or in mould form.Wrap up glass fiber cloth after the girder moulding, and cut out leaf blade tip shape stiffening rib shape at left and right side, root links to each other with girder, the stiffening rib shape is peeled off girder, sandwich lightweight filler between the stiffening rib, as foamed plastics, preprocessing guiding gutter on the 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 sealing vacuum bag and demolding layer, be positioned in the blade mold, vacuumize form.Like this, whole blade becomes one.Fig. 4 shows the schematic perspective view after blocking in this integral structure.In the structure shown in Fig. 3 and Fig. 4, stiffening rib is to obtain from the fibre cloth cutting that girder twines, and stiffening rib is staggered to blade inlet edge or trailing edge extension.But the utility model is not limited to this structure.Stiffening rib also can not be to obtain from the fibre cloth cutting that girder twines, and the prior sheet structure well of making, this sheet structure has the girder serial connection hole identical with girder vertical cross-section or the sectional shape of cutting sth. askew, when making blade, be through these sheet structures on the girder and be fixed up and to form the stiffening rib with similar functions.And, can have a plurality of pod apertures on the stiffening rib, be used for when the perfusion liquid material, the liquid towards material carries out water conservancy diversion, in order to make liquid material fully flow into each interior space of whole blade.
Fig. 5 (A)-(B) is the stiffening rib schematic representation according to the blade of wind-driven generator of another mode of execution of the present utility model.
In another mode of execution of the present utility model, the stiffening rib of blade of wind-driven generator is the sheet structure with girder serial connection hole 211 corresponding with the shape in the vertical cross-section of girder or the cross section of cutting sth. askew, and these stiffening ribs are connected in series and are fixed on the girder by girder serial connection hole.Shown in Fig. 5 (A)-(B), when reinforcing rib design is to extend and when vertical with girder to a side, girder serial connection hole be shaped as girder vertical cross-section shape, when girder section is circle, this serial connection Kong Zewei circle, during for ellipse or polygonal, the serial connection hole also is ellipse or polygonal.The profile 212 of sheet stiffening rib, 213 is the shape that girder extends to leaf shell plane, till supporting to the leaf shell.When girder section is circular, but when stiffening rib and girder acutangulated, what then be connected in series the hole was shaped as girder with the cut sth. askew shape in gained cross section of this acute angle.Fig. 5 (A) is the stiffening rib schematic representation that extends to the blade inlet edge side; Fig. 5 (B) is the stiffening rib schematic representation that extends to the trailing edge side.The sheet stiffening rib can be by fiber glass material making or metal or alloy or other any suitable material making.And on the stiffening rib a plurality of pod apertures can be set, 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 representation according to the blade of wind-driven generator of another mode of execution of the present utility model.This stiffening rib carries out the plane extension to blade inlet edge and trailing edge both sides simultaneously, and profile 214 supports to the leaf shell, and the shape in serial connection hole 211 is corresponding with the girder section shape.
The quantity of the stiffening rib on every blade is determined according to wind environment and design power.When the less area of wind-force, can reduce the quantity of stiffening rib.
In the blade of wind-driven generator of the present utility model, the cross-section area of girder is identical or reduce gradually from the blade root to the blade tip.When the design power of wind-driven generator was big, the blade that needs was longer, the structure that preferably adopts the cross-section area of girder to reduce gradually from the blade root to the blade tip.When blade more in short-term, the cross-section area that can adopt girder identical structure from the blade root to the blade tip.
Blade of the present utility model is a kind of solid construction, comprises keel structure, leaf shell and lightweight filler that girder and train of thought type stiffening rib are formed, and three parts constitute a seamless integral body.The train of thought type stiffening rib that stretches out on girder and the girder is the main support structure of blade, lightweight filler is filled in the space of girder and stiffening rib and perfusion is integral, also can play certain supporting effect to stiffening rib and leaf shell, prevent unstability, thereby increase the bulk strength of blade.
Leaf shell of the present utility model is a kind ofly to finalize the design with internal mold, integral body (as shown in Figure 7) structure of glass fiber cloth interfolded parcel core rod, not traditional two up and down, increased the intensity of structure and avoided two blade damages that the leaf shell structures use the bonding generation inefficacy of structure glue to cause.Fig. 7 is leaf shell interfolded schematic representation.The leaf shell forms by fibre cloth interfolded parcel core rod.
The sheet structure that is shaped as the leaf blade tip shape that stretches out from girder of stiffening rib, the upper and lower surface and the leaf shell that are supported on the leaf shell are integral by liquid lamination coating (resin) perfusion.
Fig. 8 is that the stiffening rib folding bag in the mode of execution of the present utility model is rolled in the schematic representation on the foam-filled material.When stiffening rib obtains for the fibre cloth cutting of twining from girder, exceed the partially folded of packing material cross section and be wrapped on the foam-filled material.
Fig. 9 is girder and the reinforcing rib structure behind the hiding foam-filled material in the mode of execution of the present utility model.Can see, when stiffening rib obtains for the fibre cloth cutting of twining from described girder, exceed the partially folded situation that is attached to the packing material edge of packing material end face.
Figure 10 is a packing material cell schematics in the mode of execution of the present utility model.Can clearly see that 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.As another kind of selection mode, can also the pod apertures parallel with guiding gutter be set at packing material and the corresponding position of stiffening rib, not shown.
In blade, be filled in lightweight filler in the space of enclosure interior girder and stiffening rib formation, be provided with semicircle or trapezoidal guiding gutter at stiffening rib and packing material root, perhaps be provided with the pod apertures that runs through between girder and the packing material in other positions, be beneficial to the circulation of liquid lamination coating in the filling process to realize infiltration fully.
According to another mode of execution of the present utility model, in the blade lightning-arrest structure can be set.Lightning-arrest structure can be the plain conductor from the blade tip to the blade root.
According to another mode of execution of the present utility model, the utility model provides a kind of wind-driven generator, and this wind-driven generator has the blade in the respective embodiments described above.
Should be understood that above-mentioned embodiment of the present utility model only is used for exemplary illustration or explains principle of the present utility model, and does not constitute restriction of the present utility model.Therefore, any modification of under the situation that does not depart from spirit and scope of the present utility model, making, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.In addition, the utility model claims are intended to contain whole variations and the modification in the equivalents that falls into claims scope and border or this scope and border.
Claims (13)
1. blade of wind-driven generator, it comprises blade girder and leaf shell, and described blade girder is inner and extend to blade tip from blade root 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 a plurality of stiffening ribs that intersect with described girder and extend to described aerofoil profile upper surface and described aerofoil profile lower surface plane, described girder and described stiffening rib formation blade keel; Described aerofoil profile upper surface and described aerofoil profile lower surface are seamless overall structure.
2. blade as claimed in claim 1 is characterized in that:
Described stiffening rib is for from described girder to described aerofoil profile front edge side and/or the described airfoil trailing edge side sheet structure of stretching out.
3. blade as claimed in claim 2 is characterized in that:
Be wound with glass fiber cloth on the described girder, described stiffening rib is by peel off the sheet structure that forms from described glass fiber cloth cutting and from described girder.
4. blade as claimed in claim 2 is characterized in that:
Described stiffening rib is the sheet structure with girder serial connection hole corresponding with described girder section shape, and described stiffening rib is connected in series and is fixed on the described girder by described girder serial connection hole.
5. as claim 3 or 4 described blades, it is characterized in that:
Described girder section is shaped as circle, ellipse or polygonal, is provided with lightweight filler between the described stiffening rib.
6. blade as claimed in claim 5 is characterized in that:
Described lightweight filler is provided with a plurality of guiding gutters, is used for making when described blade interior is poured into liquid lamination coating when making blade it fully to invade profit between girder and the packing material.
7. blade as claimed in claim 6 is characterized in that:
Described stiffening rib is set to interlock and stretches out to described aerofoil profile front edge side and described airfoil trailing edge side.
8. blade as claimed in claim 7 is characterized in that:
The angle of described stiffening rib and described girder is being right angle or acute angle towards the blade tip direction.
9. blade as claimed in claim 8 is characterized in that:
The quantity of described stiffening rib is determined according to wind environment and design power.
10. blade as claimed in claim 9 is characterized in that:
The cross-section area of described girder is identical or reduce gradually from the blade root to the blade tip.
11. blade as claimed in claim 10 is characterized in that:
The periphery of described stiffening rib closely contacts with described leaf shell.
12. as any one described blade in the claim 6 to 11, it is characterized in that: described blade has the lightning conductor structure.
13. a wind-driven generator is characterized in that:
Described wind-driven generator has claim 1 to 11 any one described blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320161274XU CN203175771U (en) | 2013-04-02 | 2013-04-02 | Wind driven generator blade and wind driven generator provide with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320161274XU CN203175771U (en) | 2013-04-02 | 2013-04-02 | Wind driven generator blade and wind driven generator provide with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203175771U true CN203175771U (en) | 2013-09-04 |
Family
ID=49072478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320161274XU Expired - Fee Related CN203175771U (en) | 2013-04-02 | 2013-04-02 | Wind driven generator blade and wind driven generator provide with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203175771U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147936A (en) * | 2013-04-02 | 2013-06-12 | 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 with same |
| CN112283036A (en) * | 2020-10-28 | 2021-01-29 | 李可懿 | Environment-friendly power equipment |
| CN112848378A (en) * | 2020-12-26 | 2021-05-28 | 吉林大学 | Fiber reinforced composite blade material with bionic structure and preparation method thereof |
-
2013
- 2013-04-02 CN CN201320161274XU patent/CN203175771U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147936A (en) * | 2013-04-02 | 2013-06-12 | 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 with same |
| CN103147936B (en) * | 2013-04-02 | 2015-10-28 | 南京飓能电控自动化设备制造有限公司 | Blade of wind-driven generator and there is the wind-driven generator of this blade |
| CN112283036A (en) * | 2020-10-28 | 2021-01-29 | 李可懿 | Environment-friendly power equipment |
| CN112848378A (en) * | 2020-12-26 | 2021-05-28 | 吉林大学 | Fiber reinforced composite blade material with bionic structure and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103147936B (en) | Blade of wind-driven generator and there is the wind-driven generator of this blade | |
| US9719489B2 (en) | Wind turbine rotor blade assembly having reinforcement assembly | |
| US9611833B2 (en) | Wind turbine blade with narrow shoulder and relatively thick airfoil profiles | |
| CN101749174B (en) | Method of fabricating wind turbine rotor blade and sparcap for wind turbine rotor blade | |
| CN102287321A (en) | Wind turbine rotor blade joint | |
| EP2159414B1 (en) | Wind turbine blades with cross webs | |
| CN201165932Y (en) | Large-scale wind wheel blade double-girder type structure | |
| CN203175771U (en) | Wind driven generator blade and wind driven generator provide with same | |
| US20130236327A1 (en) | Advanced aerodynamic and structural blade and wing design | |
| CN112867864A (en) | Spar cap configuration for joined wind turbine blades | |
| EP3032094B1 (en) | Spar cap for a wind turbine rotor blade | |
| AU2011226066B2 (en) | Wind turbine rotor blade | |
| CN107676232B (en) | Modularized wind turbine blade structure and assembly method thereof | |
| CN201221439Y (en) | Double-layer type combined fan blade structure of wind power generator | |
| CN115596604B (en) | Multi-web structure modularized wind power blade | |
| CN211008948U (en) | Beam cap structure for wind driven generator blade | |
| US20230175476A1 (en) | Wind turbine blade | |
| CN201972843U (en) | Horizontal-axis wind turbine blade | |
| CN204253287U (en) | A kind of many beam structures large scale wind electricity blade | |
| CN220101427U (en) | Wind power blade and wind generating set | |
| WO2013092852A1 (en) | Wind turbine blade assembled from inboard and outboard blade parts | |
| CN207393392U (en) | A kind of modularization wind turbine blade structure | |
| CN105822495B (en) | A kind of Wind turbines | |
| CN202483810U (en) | Megawatt level wind wheel blade and shear web thereof | |
| KR102586818B1 (en) | Blade of wind turbine and manufacturing method of the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160311 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. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20200402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |