CN216157825U - Wind power blade single web plate with double-side flanging structure - Google Patents
Wind power blade single web plate with double-side flanging structure Download PDFInfo
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- CN216157825U CN216157825U CN202122231329.7U CN202122231329U CN216157825U CN 216157825 U CN216157825 U CN 216157825U CN 202122231329 U CN202122231329 U CN 202122231329U CN 216157825 U CN216157825 U CN 216157825U
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a wind power blade single web plate with a bilateral flanging structure, which comprises a core material, a rear edge side glass fiber inner layer, a rear edge side glass fiber outer layer, a front edge side glass fiber inner layer, a front edge side glass fiber outer layer, a front edge side glass fiber reinforced inner layer, a front edge side glass fiber reinforced outer layer and a flanging reinforced layer, the rear edge side glass fiber inner layer and the front edge side glass fiber inner layer are respectively paved on the rear edge side surface and the front edge side surface of the core material, the rear edge side glass fiber outer layer is laid on the outer side of the rear edge side glass fiber inner layer, the front edge side glass fiber outer layer is laid on the outer side of the front edge side glass fiber inner layer, the glass fiber reinforced composite material is characterized in that the edges of the rear edge side glass fiber inner layer, the rear edge side glass fiber outer layer, the front edge side glass fiber inner layer, the front edge side glass fiber outer layer, the front edge side glass fiber reinforced inner layer and the front edge side glass fiber reinforced outer layer are provided with a rear edge side flanging structure and a front edge side flanging structure, and the flanging reinforcing layers are laid on the rear edge side flanging structure and the front edge side flanging structure. The utility model can effectively reduce the weight and the cost of the wind power blade.
Description
Technical Field
The utility model relates to the technical field of wind power blade webs, in particular to a wind power blade single web with a bilateral flanging structure.
Background
The wind generator power is proportional to the wind wheel area, i.e. proportional to the square of the wind blade length. With the continuous maturity of wind power blade technology, large-size blades become the main development direction, and the length of the current general blades reaches more than 70 m. With the increase of the length of the blade, the mass and the mass moment of the blade are obviously increased, which not only increases the cost of the blade, but also puts higher requirements on the component strength of the fan, so that the weight reduction of the blade has great significance on the reduction of the power cost of the fan. Traditional blade generally adopts the two web structures, and the two web structures are unfavorable for losing of blade and are heavy, consider jumbo size wind-powered electricity generation blade lightweight design, in industry adopt the design form of single web structure usually, satisfying under the prerequisite of intensity and stability requirement, the weight reduction of two web structures is compared to the single web structure, and it is showing the effect to subtract heavy and the fan of blade and fall originally.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art, and provides a wind power blade single web plate with a bilateral flanging structure, which can effectively reduce the weight and the cost of the wind power blade.
In order to achieve the purpose, the technical scheme provided by the utility model is as follows: a wind power blade single web plate with a double-side flanging structure comprises a core material, a rear edge side glass fiber inner layer, a rear edge side glass fiber outer layer, a front edge side glass fiber inner layer, a front edge side glass fiber outer layer, a front edge side glass fiber reinforced inner layer, a front edge side glass fiber reinforced outer layer and a flanging reinforcing layer, wherein the rear edge side glass fiber inner layer and the front edge side glass fiber inner layer are respectively paved on the rear edge side and the front edge side of the core material, the rear edge side glass fiber outer layer is paved on the outer side of the rear edge side glass fiber inner layer, the front edge side glass fiber outer layer is paved on the outer side of the front edge side glass fiber inner layer, two side edges of the rear edge side glass fiber outer layer are provided with a first layer of rear edge side flanging facing the trailing edge direction of a blade, two side edges of the rear edge side glass fiber inner layer are provided with a second layer of rear edge side flanging facing the trailing edge direction of the blade, the second layer of rear edge side flanging is paved on the first layer of the rear edge side flanging, the two side edges of the front edge side glass fiber inner layer are formed with third layer rear edge side flanging facing the rear edge direction of the blade, the third layer rear edge side flanging is laid on the second layer rear edge side flanging, the first, second and third layer rear edge side flanging jointly form a rear edge side flanging structure, the two side edges of the front edge side glass fiber outer layer are formed with first layer front edge side flanging facing the front edge direction of the blade, the outer side surfaces of the two sides of the front edge side glass fiber outer layer are sequentially laid with a front edge side glass fiber reinforced inner layer and a front edge side glass fiber reinforced outer layer, the edge of the front edge side glass fiber reinforced inner layer is formed with a second layer front edge side flanging facing the front edge direction of the blade, the second layer front edge side flanging is laid on the first layer front edge side flanging, the edge of the front edge side glass fiber reinforced outer layer is formed with a third layer front edge side flanging facing the front edge direction of the blade, and the third layer front edge side flanging is laid on the second layer front edge side flanging, the front edge side flanging structure is formed by a first layer front edge side flanging, a second layer front edge side flanging and a third layer front edge side flanging together, the flanging reinforcing layer is laid on the rear edge side flanging structure and the front edge side flanging structure to form a double-side flanging structure of a single web plate, and the core material, the rear edge side glass fiber inner layer, the rear edge side glass fiber outer layer, the front edge side glass fiber inner layer, the front edge side glass fiber reinforcing layer, the rear edge side flanging structure, the front edge side flanging structure and the flanging reinforcing layer are integrally formed through vacuum filling.
Furthermore, the single web plate is connected with the blade shell in an adhering mode, the position, where the single web plate is adhered to the blade shell, of the blade shell is wrapped with the main beam correspondingly, and the front edge side face or the rear edge side face of the single web plate is aligned to the center line of the main beam.
Furthermore, the bonding width of the single web is 100-200 mm, and the bonding thickness is 6-8 mm.
Furthermore, the main beam is laminated by adopting a plurality of layers of single-axis cloth and is manufactured and molded by vacuum infusion, and the molded main beam is integrally wrapped in the blade shell and is manufactured and molded by vacuum infusion with the blade shell.
Furthermore, the edges of the first layer rear edge side flanging, the second layer rear edge side flanging, the third layer rear edge side flanging and the flanging reinforcing layer are staggered in sequence, and the edges of the third layer front edge side flanging, the second layer front edge side flanging, the first layer front edge side flanging and the flanging reinforcing layer are staggered in sequence.
Furthermore, 5-15 mm staggers between two adjacent layers.
Further, the thickness of the core material is 5-50 mm, the thicknesses of the rear edge side glass fiber inner layer, the rear edge side glass fiber outer layer, the front edge side glass fiber inner layer, the front edge side glass fiber outer layer, the front edge side glass fiber reinforcing inner layer, the front edge side glass fiber reinforcing outer layer and the flanging reinforcing layer are all 0.5-0.8 mm, and the width of the flanging reinforcing layer is consistent with the bonding width of the single web plate.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
1. compared with a double-web plate, the single-web plate of the utility model has the advantages that the weight is reduced by more than 500kg, and the weight reduction effect on blades and the cost reduction effect on a fan are obvious.
2. The single web plate is bonded with the blade shell through the bilateral flanging structure, so that the bonding width of the single web plate and the blade shell is increased, the symmetry of a shearing load is ensured, and most of shearing resistance is provided for the blade, so that the blade is high in overall structural strength, reliable in performance and good in stability.
Drawings
FIG. 1 is a schematic representation of the bonding of a single web of the present invention.
Fig. 2 is a partial enlarged view of a single web of the present invention.
Detailed Description
The present invention is further illustrated with reference to the following specific examples, but the mode of use of the present invention is not limited thereto.
As shown in fig. 1 and fig. 2, the wind turbine blade single web with the double-side flanging structure in this embodiment includes a core material 01, a rear edge side glass fiber inner layer 02, a rear edge side glass fiber outer layer 03, a front edge side glass fiber inner layer 04, a front edge side glass fiber outer layer 05, a front edge side glass fiber reinforced inner layer 06, a front edge side glass fiber reinforced outer layer 07 and a flanging reinforcing layer 08, where the rear edge side glass fiber inner layer 02 and the front edge side glass fiber inner layer 04 are respectively laid on the rear edge side and the front edge side of the core material 01, the rear edge side glass fiber outer layer 03 is laid on the outer side of the rear edge side glass fiber inner layer 02, the front edge side glass fiber outer layer 05 is laid on the outer side of the front edge side glass fiber inner layer 04, two side edges of the rear edge side glass fiber outer layer 03 are formed with first rear edge side flanging facing the rear edge direction of the blade, two side edges of the rear edge side inner layer 02 are formed with second rear edge side flanging facing the rear edge direction of the blade, the second layer of rear edge side flanging is laid on the first layer of rear edge side flanging, the third layer of rear edge side flanging is formed on the two side edges of the front edge side glass fiber inner layer 04, the third layer of rear edge side flanging is laid on the second layer of rear edge side flanging, the rear edge side flanging structure 401 is formed by the first layer of rear edge side flanging, the second layer of rear edge side flanging and the third layer of rear edge side flanging, the first layer of front edge side flanging is formed on the two side edges of the front edge side glass fiber outer layer 05, the front edge side glass fiber reinforced inner layer 06 and the front edge side glass fiber reinforced outer layer 07 are laid on the outer side surfaces of the two sides of the front edge side glass fiber outer layer 05 in sequence, the second layer of front edge side flanging is laid on the first layer of front edge side flanging, the edge of the front edge side glass fiber reinforced outer layer 07 is provided with a third layer front edge side flanging facing the front edge direction of the blade, the third layer front edge side flanging is laid on the second layer front edge side flanging, a front edge side flanging structure 402 is formed by the first layer front edge side flanging, the second layer front edge side flanging and the third layer front edge side flanging together, the flanging reinforcing layer 08 is laid on the rear edge side flanging structure 401 and the front edge side flanging structure 402, namely, the flanging reinforcing layer 08 covers the third layer rear edge side flanging and the first layer front edge side flanging to form a double-side flanging structure 4 of the single web plate 1, the connecting width of the single web plate 1 and the blade shell can be increased through the double-side flanging structure 4, and the symmetry of shear load is ensured at the same time, and the core material 01, the rear edge side glass fiber inner layer 02, the rear edge side glass fiber outer layer 03, the front edge side glass fiber inner layer 04 and the glass fiber outer layer 05, The front edge side glass fiber reinforced inner layer 06, the front edge side glass fiber reinforced outer layer 07 and the double-side flanging structure 4 are integrally formed through vacuum infusion.
Preferably, the single web 1 is connected with a blade shell (not shown in the figure) through structural adhesive 3 in an adhering manner, the position of the blade shell where the single web 1 is adhered is correspondingly wrapped with a main beam 2, the front edge side or the rear edge side of the single web 1 is aligned to the central line of the main beam 2, and most of the shear resistance can be provided for the blade through the single web 1. Girder 2 adopts multilayer unipolar cloth to fold together to through the prefabricated shaping of vacuum infusion, girder 2 whole parcel after the shaping is in the blade shell and adopt the vacuum infusion preparation shaping with the blade shell, and the prefabricated mode of girder 2 can improve blade filling quality and manufacturing efficiency greatly.
Further, the height of the single web 1 needs to be determined according to the size of the wind power blade, the height of the single web 1 in this embodiment is about 1650mm, the thickness of the core material 01 is about 5-50 mm, preferably 15mm, and the thicknesses of the rear edge side glass fiber inner layer 02, the rear edge side glass fiber outer layer 03, the front edge side glass fiber inner layer 04, the front edge side glass fiber outer layer 05, the front edge side glass fiber reinforced inner layer 06, the front edge side glass fiber reinforced outer layer 07 and the flanging reinforcing layer 08 are all about 0.5-0.8 mm, preferably 0.586 mm; the edges of the first layer rear edge side flanging, the second layer rear edge side flanging, the third layer rear edge side flanging and the flanging reinforcing layer 08 are staggered in sequence, the edges of the third layer front edge side flanging, the second layer front edge side flanging, the first layer front edge side flanging and the flanging reinforcing layer 08 are staggered in sequence, and the adjacent two layers are staggered by about 5-15 mm, preferably 10 mm.
The bonding width of the single web plate 1 in the embodiment is determined by the limit and fatigue analysis of the adopted structural adhesive 3, the bonding effect of the single web plate 1 with the width of the structural adhesive 3 being about 100-200 mm, preferably 110mm, the bonding being about 6-8 mm, preferably 8mm is the best, the width of the flanging reinforcing layer 08 is consistent with the bonding width of the single web plate 1, compared with the single web plate 1 in the embodiment, the weight of the single web plate 1 is reduced by about 500kg, the single web plate has remarkable effects on weight reduction of the blade and cost reduction of the fan, and the blade is high in overall structural strength, reliable in performance, good in stability and worthy of popularization.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that variations based on the shape and principle of the present invention should be covered within the scope of the present invention.
Claims (7)
1. The utility model provides a wind-powered electricity generation blade list web with two side flange structure which characterized in that: the glass fiber reinforced composite board comprises a core material, a rear edge side glass fiber inner layer, a rear edge side glass fiber outer layer, a front edge side glass fiber inner layer, a front edge side glass fiber outer layer, a front edge side glass fiber reinforced inner layer, a front edge side glass fiber outer layer and a flanging reinforced layer, wherein the rear edge side glass fiber inner layer and the front edge side glass fiber inner layer are respectively paved on the rear edge side and the front edge side of the core material, the rear edge side glass fiber outer layer is paved on the outer side of the rear edge side glass fiber inner layer, the front edge side glass fiber outer layer is paved on the outer side of the front edge side glass fiber inner layer, two side edges of the rear edge side glass fiber outer layer are provided with a first layer of rear edge side flanging towards the rear edge direction of the blade, two side edges of the rear edge side glass fiber inner layer are provided with a second layer of rear edge side flanging towards the rear edge direction of the blade, the two side edges of the front edge side inner layer are provided with a third layer of rear edge side flanging towards the rear edge direction of the blade, the third layer of rear edge side flanging is laid on the second layer of rear edge side flanging, the first, second and third layer of rear edge side flanging jointly form a rear edge side flanging structure, the two side edges of the front edge side glass fiber outer layer are formed with the first layer of front edge side flanging towards the front edge direction of the blade, the outer side surfaces of the two sides of the front edge side glass fiber outer layer are sequentially laid with the front edge side glass fiber reinforced inner layer and the front edge side glass fiber reinforced outer layer, the edge of the front edge side glass fiber reinforced inner layer is formed with the second layer of front edge side flanging towards the front edge direction of the blade, the second layer of front edge side flanging is laid on the first layer of front edge side flanging, the edge of the front edge side glass fiber reinforced outer layer is formed with the third layer of front edge side flanging towards the front edge direction of the blade, the third layer of front edge side flanging is laid on the second layer of front edge side flanging, and the first, second and third layer of front edge side flanging jointly form a front edge side flanging structure, the flanging reinforcing layer is laid on the flanging structure at the rear edge side and the flanging structure at the front edge side to form a double-side flanging structure of a single web plate, and the core material, the glass fiber inner layer at the rear edge side, the glass fiber outer layer at the rear edge side, the glass fiber inner layer at the front edge side, the glass fiber outer layer at the front edge side, the glass fiber reinforcing inner layer at the front edge side, the glass fiber reinforcing outer layer at the front edge side, the flanging structure at the rear edge side, the flanging structure at the front edge side and the flanging reinforcing layer are integrally formed through vacuum filling.
2. The wind power blade single web with the double-side flanging structure is characterized in that: the single web plate is connected with the blade shell in an adhering mode, a main beam is wrapped at the position where the single web plate is adhered to the blade shell correspondingly, and the front edge side face or the rear edge side face of the single web plate is aligned to the central line of the main beam.
3. The wind power blade single web with the double-side flanging structure is characterized in that: the bonding width of single web is 100 ~ 200mm, and the bonding thickness is 6 ~ 8 mm.
4. The wind power blade single web with the double-side flanging structure is characterized in that: the main beam is laminated by adopting a plurality of layers of single-shaft cloth and is manufactured and molded by vacuum infusion, and the molded main beam is integrally wrapped in the blade shell and is manufactured and molded by vacuum infusion with the blade shell.
5. The wind power blade single web with the double-side flanging structure is characterized in that: the edges of the first layer rear edge side flanging, the second layer rear edge side flanging, the third layer rear edge side flanging and the flanging reinforcing layer are staggered in sequence, and the edges of the third layer front edge side flanging, the second layer front edge side flanging, the first layer front edge side flanging and the flanging reinforcing layer are staggered in sequence.
6. The wind power blade single web with the double-side flanging structure is characterized in that: and 5-15 mm of stagger is formed between two adjacent layers.
7. The wind power blade single web with the double-side flanging structure is characterized in that: the thickness of the core material is 5-50 mm, the thicknesses of the rear edge side glass fiber inner layer, the rear edge side glass fiber outer layer, the front edge side glass fiber inner layer, the front edge side glass fiber outer layer, the front edge side glass fiber reinforcing inner layer, the front edge side glass fiber reinforcing outer layer and the flanging reinforcing layer are all 0.5-0.8 mm, and the width of the flanging reinforcing layer is consistent with the bonding width of the single web plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122231329.7U CN216157825U (en) | 2021-09-15 | 2021-09-15 | Wind power blade single web plate with double-side flanging structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122231329.7U CN216157825U (en) | 2021-09-15 | 2021-09-15 | Wind power blade single web plate with double-side flanging structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115822867A (en) * | 2023-02-01 | 2023-03-21 | 新创碳谷集团有限公司 | Modularized wind power blade structure and manufacturing method thereof |
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2021
- 2021-09-15 CN CN202122231329.7U patent/CN216157825U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115822867A (en) * | 2023-02-01 | 2023-03-21 | 新创碳谷集团有限公司 | Modularized wind power blade structure and manufacturing method thereof |
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