CN202545139U - Deflection-resistant wind turbine wind wheel blade with reinforcing rib structure - Google Patents
Deflection-resistant wind turbine wind wheel blade with reinforcing rib structure Download PDFInfo
- Publication number
- CN202545139U CN202545139U CN2012201801785U CN201220180178U CN202545139U CN 202545139 U CN202545139 U CN 202545139U CN 2012201801785 U CN2012201801785 U CN 2012201801785U CN 201220180178 U CN201220180178 U CN 201220180178U CN 202545139 U CN202545139 U CN 202545139U
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- blade
- reinforcing rib
- rib structure
- flexing
- wind turbines
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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 utility model relates to a deflection-resistant wind turbine wind wheel blade with a reinforcing rib structure. The deflection-resistant wind turbine wind wheel blade comprises a shell, a primary beam, a web plate and a rear edge secondary beam, wherein reinforcing ribs are fixedly arranged on the inner surface of the shell. The stability of an aerodynamic shape of the blade is guaranteed through the shell, the primary beam, the web plate, the rear edge secondary beam and the reinforcing ribs serve as a main bearing structure of the blade, and due to the introducing of the reinforcing rib structure, the load distribution inside the blade is changed, the relative buckling strength of the blade shell is effectively improved; and due to the optimized structure, the layering thicknesses of the primary beam, the rear edge secondary beam, the web plate and a core material are adjusted, the structural stability is guaranteed, the weight of the blade is reduced, and the light-weight and high-strength effects of the blade are finally achieved; and therefore, the fan efficiency and the cost performance are improved.
Description
Technical field
The utility model relates to the wind power plant wind wheel blade in structure and material engineering field, particularly relates to a kind of anti-flexing wind turbines rotor blade with reinforcing rib structure.
Background technique
Exhausted day by day along with fossil energy, wind-power electricity generation become the new lover of countries in the world as a kind of forms of electricity generation of cheap, cleaning low-carbon (LC).The fast development of whole world wind-powered electricity generation industry has driven the fast development of wind-powered electricity generation unit.Blade is as one of critical component of wind-powered electricity generation unit, and its performance quality directly affects the load that wind energy utilization and unit bore of blower fan.Along with the blower fan development, blade is done bigger and bigger, and quality is more and more heavier, and the material property and the stability of structure of blade are brought very big challenge.
Existing pneumatic equipment blades made generally adopts the structural type of " housing+girder+web ".This structural type also constantly exposes 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 deformation failure; Position near blade tip is prone to take place bending deformation or the like.And the direct way that addresses these problems is the consumption that increases material, and this way not only increases the risk of manufacturing process, has also increased leaf weight, causes the load of wind-force unit bigger, makes fan efficiency reduce, and has also increased the manufacture cost of blade simultaneously.
This shows that above-mentioned existing wind turbines rotor blade obviously still has inconvenience and defective, and demands urgently further improving in structure and use.How to found a kind of fan blade of the anti-flexing with stiffening rib; Improve the stability of blade from the angle of optimizing structure; The anti-flexing wind turbines rotor blade of the new band reinforcing rib structure of the cost performance of raising wind energy conversion system, the current industry utmost point of real genus needs improved target.
The model utility content
The technical problem that the utility model will solve provides a kind of anti-flexing wind turbines rotor blade with reinforcing rib structure, makes its flexing deformation that can resist blade, thereby overcomes the deficiency of existing wind turbines rotor blade.
For solving the problems of the technologies described above, a kind of anti-flexing wind turbines rotor blade with reinforcing rib structure of the utility model comprises housing, girder, web and trailing edge auxiliary girder, and described shell inner surface also is fixed with stiffening rib.
As a kind of improvement of the utility model, described stiffening rib is arranged near the maximum chord length of blade, trailing edge and/or near the blade tip position.
The end face of described stiffening rib is trapezoidal or the arc of band chamfering.
The shape of described stiffening rib and housing joint is corresponding with the aerodynamic configuration of blade.
Described stiffening rib adopts BALSA timber matter.
Described stiffening rib adopts the light composite material with cellular structure.
Described housing comprises covering and core.
After adopting such design, the utility model guarantees the stability of vane aerodynamic profile with housing, with girder, web, trailing edge auxiliary girder, the stiffening rib main bearing structure as blade; The wherein introducing of reinforcing rib structure has changed the blade interior load distribution, effectively raises the relative buckling strength of blade shell; And through further optimizing structure; The shop layer thickness of adjustment girder, trailing edge auxiliary girder, web, core when guaranteeing structure stability, has reduced leaf weight; Finally reach the effect of blade high-strength light, thereby improve fan efficiency and cost performance.
Description of drawings
Above-mentioned only is the general introduction of the utility model technological scheme, in order more to know the technological means of understanding the utility model, below in conjunction with accompanying drawing and embodiment the utility model is done further to specify.
Fig. 1 is the structural representation of existing wind turbines rotor blade.
Fig. 2 is the structural representation of the anti-flexing wind turbines rotor blade of the utility model band reinforcing rib structure.
Fig. 3 is the structural representation in the A-A cross section among Fig. 2.
Fig. 4 is a kind of end view of stiffening rib in the utility model.
Embodiment
See also shown in Figure 1ly, the wind turbines rotor blade of existing aerofoil profile and shop layer structure mainly comprises housing, girder 6, web 5,7 and trailing edge auxiliary girder 1, through calculating and analyze the stressing conditions of blade, on blade, has the deathtrap 8 of a plurality of easy generation flexings.
Please cooperate and consult Fig. 2, shown in Figure 3; A kind of anti-flexing wind turbines rotor blade of the utility model with reinforcing rib structure; Shell inner surface being prone to the generation failure position has been set up stiffening rib 3; This stiffening rib 3 quantity is set and the stressing conditions of blade and the position of deathtrap 8 are depended in the position, be arranged near the maximum chord length of blade usually, trailing edge and/or near the blade tip position, can change the stress distribution of blade interior structure.
Preferable, stiffening rib 3 adoptable materials are that BALSA wood, the light composite material with cellular structure or engineering plastics or other can satisfy composite material or other plastics of performance requirement.The end face of stiffening rib 3 is preferably the arc of band chamfering trapezoidal or as shown in Figure 4, and its bottom shape that is connected with the blade interior housing depends on the situation of vane airfoil profile, and conformal is in the aerodynamic configuration of blade.
In addition, housing can be made up of covering 4 and core 2, and stiffening rib both can be installed on the surface of blade interior covering 4, also can lay together and form with the housing core.
The forming method of stiffening rib has two kinds: a kind of is after blade shell is accomplished exterior skin and core laying, and stiffening rib is laid in the core surface, repaves inside panel, vacuum infusion molding, and the mould that overturns then carries out the back cured, until the complete solidifying of blade; Another kind is after blade shell is accomplished the laying of exterior skin, core, inside panel, and vacuum infusion molding is surperficial in inside panel with the stiffening rib hand pasting forming then; The joint is done suitable reinforcement and is handled; The mould that overturns afterwards carries out the back solidifying, until the complete solidifying of blade.
In the wind turbines rotor blade structure of the utility model, housing mainly satisfies the stability of the aerodynamic configuration of blade; Girder, web and trailing edge auxiliary girder support housing satisfy the blade interior stability of structure; Stiffening rib connects housing, and blade shell is played a supportive role, and power further improved the blade interior stability of structure in the distribution of blade interior when the change blade received load.The utility model can reduce the consumption of core, girder, trailing edge auxiliary girder and web material, on the basis of satisfying blade stiffness, intensity and stability requirement, realizes the effect of blade high-strength light.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in the protection domain of the utility model.
Claims (7)
1. the anti-flexing wind turbines rotor blade with reinforcing rib structure comprises housing, girder, web and trailing edge auxiliary girder, and it is characterized in that: described shell inner surface also is fixed with stiffening rib.
2. a kind of anti-flexing wind turbines rotor blade with reinforcing rib structure according to claim 1 is characterized in that described stiffening rib is arranged near the maximum chord length of blade, trailing edge and/or near the blade tip position.
3. a kind of anti-flexing wind turbines rotor blade with reinforcing rib structure according to claim 1, the end face that it is characterized in that described stiffening rib are trapezoidal or the arc of band chamfering.
4. a kind of anti-flexing wind turbines rotor blade with reinforcing rib structure according to claim 1 is characterized in that the aerodynamic configuration of shape and blade of described stiffening rib and housing joint is corresponding.
5. a kind of anti-flexing wind turbines rotor blade with reinforcing rib structure according to claim 1 is characterized in that described stiffening rib adopts BALSA timber matter.
6. a kind of anti-flexing wind turbines rotor blade with reinforcing rib structure according to claim 1 is characterized in that described stiffening rib adopts the light composite material with cellular structure.
7. according to each described a kind of anti-flexing wind turbines rotor blade among the claim 1-6, it is characterized in that described housing comprises covering and core with reinforcing rib structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201801785U CN202545139U (en) | 2012-04-25 | 2012-04-25 | Deflection-resistant wind turbine wind wheel blade with reinforcing rib structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201801785U CN202545139U (en) | 2012-04-25 | 2012-04-25 | Deflection-resistant wind turbine wind wheel blade with reinforcing rib structure |
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| Publication Number | Publication Date |
|---|---|
| CN202545139U true CN202545139U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201801785U Expired - Lifetime CN202545139U (en) | 2012-04-25 | 2012-04-25 | Deflection-resistant wind turbine wind wheel blade with reinforcing rib structure |
Country Status (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619705A (en) * | 2012-04-25 | 2012-08-01 | 国电联合动力技术有限公司 | Deflection resistant wind wheel vane with reinforcing rib structure of wind driven generator |
| CN105508142A (en) * | 2014-10-15 | 2016-04-20 | 株洲时代新材料科技股份有限公司 | Multi-girder structure large size wind power blade and production method thereof |
| CN110725775A (en) * | 2019-10-25 | 2020-01-24 | 明阳智慧能源集团股份公司 | Integrally-formed wind driven generator blade and manufacturing method thereof |
| CN111396244A (en) * | 2020-03-19 | 2020-07-10 | 上海电气风电集团股份有限公司 | Wind power blade and stringer reinforcing structure and method thereof |
| CN112012877A (en) * | 2019-05-31 | 2020-12-01 | 江苏金风科技有限公司 | Reinforcing component, web, blade, forming method and wind generating set |
-
2012
- 2012-04-25 CN CN2012201801785U patent/CN202545139U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619705A (en) * | 2012-04-25 | 2012-08-01 | 国电联合动力技术有限公司 | Deflection resistant wind wheel vane with reinforcing rib structure of wind driven generator |
| CN105508142A (en) * | 2014-10-15 | 2016-04-20 | 株洲时代新材料科技股份有限公司 | Multi-girder structure large size wind power blade and production method thereof |
| CN105508142B (en) * | 2014-10-15 | 2018-06-05 | 株洲时代新材料科技股份有限公司 | A kind of more girder construction large scale wind electricity blades and its production method |
| CN112012877A (en) * | 2019-05-31 | 2020-12-01 | 江苏金风科技有限公司 | Reinforcing component, web, blade, forming method and wind generating set |
| CN110725775A (en) * | 2019-10-25 | 2020-01-24 | 明阳智慧能源集团股份公司 | Integrally-formed wind driven generator blade and manufacturing method thereof |
| CN110725775B (en) * | 2019-10-25 | 2023-11-28 | 明阳智慧能源集团股份公司 | Integrally formed wind driven generator blade and manufacturing method thereof |
| CN111396244A (en) * | 2020-03-19 | 2020-07-10 | 上海电气风电集团股份有限公司 | Wind power blade and stringer reinforcing structure and method thereof |
| WO2021185263A1 (en) * | 2020-03-19 | 2021-09-23 | 上海电气风电集团股份有限公司 | Wind power blade, stringer reinforcement structure thereof, and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NATIONAL ELECTRIC NEW ENERGY TECHNOLOGY INSTITUTE Effective date: 20130702 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130702 Address after: 100000 Beijing City, Zhongguancun, South Street, building B, building No., level 56, level 16 Patentee after: Guodian United Power Technology Co., Ltd. Patentee after: Guodian New Energy Technology Institute Address before: 100000 Beijing City, Zhongguancun, South Street, building B, building No., level 56, level 16 Patentee before: Guodian United Power Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |