CN105089942B - Blade, wind-driven generator and blade manufacture method - Google Patents
Blade, wind-driven generator and blade manufacture method Download PDFInfo
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- CN105089942B CN105089942B CN201510410226.3A CN201510410226A CN105089942B CN 105089942 B CN105089942 B CN 105089942B CN 201510410226 A CN201510410226 A CN 201510410226A CN 105089942 B CN105089942 B CN 105089942B
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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 present invention provides a kind of blade, wind-driven generator and blade manufacture method.The blade has first shell and second shell, and the joint place of first shell and second shell is cut-off rule, and along the length direction of blade, at least part of cut-off rule is located at the side of blade inlet edge.At least partly blade inlet edge of the blade is not divided, and then avoids the problem that blade aerodynamic performance is bad caused by mismachining tolerance.
Description
Technical field
The present invention relates to field of wind power equipment more particularly to blades, wind-driven generator and blade manufacture method.
Background technique
The term of the blade of wind-driven generator is explained:
Vane airfoil profile: refer to the profile of the cross section of blade；
Blade inlet edge: refer to the front on blade movement direction.
Leading edge vertex: refer to the First Point of blade inlet edge.
Suction surface: when referring to that air flows through, speed is higher, lesser one side surface of aerofoil profile of static pressure.
Pressure face: when referring to that air flows through, speed is lower, biggish one side surface of aerofoil profile of static pressure.
Cut-off rule: refer to the line of blade or more two parts joint place, also refer in blade actual production manufacturing process, be used for
Separate the line of upper and lower mould.
Wind-driven generator mainly passes through impeller by wind drive rotary electrification, and impeller is usually by 2 to 3 blade groups
At as the capital equipment of wind-driven generator, the aeroperformance of blade directly affects the generating efficiency of wind-driven generator.
It participates in shown in Fig. 1, in current general blade design and production technology, the pressure face part 30 ' (face PS) of blade
It is separately formed with suction surface 20 ' (face SS), carries out glued composition blade after molding again.In such production technology, dividing
When two type faces of blade, the method generallyd use is separated on the leading edge vertex 12 ' of blade and rear apex, so that
The leading edge of blade is also accordingly divided into two parts.During being combined later, leading edge portion passes through leading edge bonding angle benefit
Gluing is carried out with bonded adhesives, finally hand pastes (or vacuum bag pressure) external strengthening course on the outside.
The shortcomings that this production technology is: the pressure face part 30 ' of blade and suction surface 20 ' are usual when leading edge is aligned
Error can be generated, this error is very big to the effect of aerodynamic performance of blade, especially in the tip region of blade.If blade is pneumatic
Performance is bad, then will affect the annual electricity generating capacity of wind-driven generator, reduces the production efficiency of wind-driven generator, influences production value.
In addition, fan blade is in the process of running, the linear velocity at blade tip is most fast, and dust storm snow mist is in leaf in order to prevent
The erosion painted at the blade inlet edge of apical segment needs be in after the completion of blade outer surface paints to protect blade inlet edge
Blade inlet edge region patch leading edge protection pad pasting 60 ' (as shown in Figure 2) of blade tip section.But leading edge protection pad pasting 60 ' has centainly
Thickness, its presence changes blade profile aerofoil profile, especially because leading edge protection pad pasting 60 ' is located at tip segment, and has
Certain length, therefore be affected to pneumatic efficiency.
Summary of the invention
The embodiment of the present invention provides a kind of blade, wind-driven generator and blade manufacture method, raw to solve the prior art
The problem of the aeroperformance difference of the blade of production.
In order to achieve the above objectives, the embodiment of the present invention provides a kind of blade, which has first shell and second shell
The joint place of body, first shell and second shell is cut-off rule, and along the length direction of blade, at least part of cut-off rule is located at
The side of blade inlet edge.
Further, along the length direction of blade, cut-off rule is integrally located at the side of blade inlet edge.
Further, along the length direction of blade, at least part of cut-off rule is located on the suction surface of blade.
Further, along the length direction of blade, the rest part of cut-off rule is located at the company on the leading edge vertex of blade inlet edge
On line.
Further, along the length direction of blade, the rest part of cut-off rule is located on the pressure face of blade.
Further, along the length direction of blade, the cut-off rule for being located at least in the blade tip section of blade is located at blade inlet edge
Side.
Further, the cut-off rule for being located at least in the blade tip section of blade is located on the suction surface of blade.
Further, blade further includes leading edge protection pad pasting, and the outside of the blade inlet edge of blade has groove, leading edge protection
Pad pasting is arranged in groove.
According to another aspect of the present invention, a kind of blade manufacture method is provided, blade manufacture method is above-mentioned for manufacturing
Blade includes the following steps: that auxiliary mould is installed on upper mold matrix forms upper mold, or the installation auxiliary mould on lower die matrix
Tool forms lower mold；Leading edge is pasted on the upper mold or lower mold for being equipped with auxiliary mould protects pad pasting；Roller coating gel coats
And solidify；Blade is molded by upper mold and lower mold.
According to another aspect of the present invention, a kind of wind-driven generator is provided comprising blade, the blade are above-mentioned leaf
Piece.
At least part of the cut-off rule of the blade of the embodiment of the present invention is located at the side of blade inlet edge, guarantees at least one
Partial blade leading edge is not divided, is an entirety, and then guarantees that the type face of blade inlet edge and design are consistent, is solved processing and is missed
Caused by difference the problem of blade aerodynamic reduced performance, the purpose for improving blade aerodynamic performance is realized.
Detailed description of the invention
Fig. 1 is the cross-sectional type line chart of blade in the prior art；
Fig. 2 is the section molded line schematic diagram of the blade in the prior art that pad pasting is protected with leading edge；
Fig. 3 is the molded lines of the cross section of the blade of the embodiment of the present invention；
Fig. 4 is the section molded line schematic diagram of the blade that pad pasting is protected with leading edge of the embodiment of the present invention；
Fig. 5 is the flow chart of the blade manufacture method of the embodiment of the present invention.
Description of symbols:
11, cut-off rule；12, virtual secant；20, first shell；30, second shell；40, blade inlet edge；60, leading edge is protected
Pad pasting.
Specific embodiment
The blade of the embodiment of the present invention, blade manufacture method and wind-driven generator are retouched in detail with reference to the accompanying drawing
It states.In the present embodiment, first shell and second shell refer to two parts of composition blade.
As shown in figure 3, according to an embodiment of the invention, blade has first shell 20 and second shell 30, first shell
20 and second shell 30 joint place formed cut-off rule 11, along the length direction of blade, at least part of cut-off rule 11 is located at
The side of blade inlet edge 40.Since at least part of cut-off rule 11 is located at the side of blade inlet edge 40 (either suction surface
Side is also possible to pressure face side), so at least part blade inlet edge 40 is not divided line 11 and divides, it is one complete
Entirety, blade inlet edge 40 as caused by alignment error when can thus be combined to avoid first shell 20 and second shell 30
Uneven problem guarantees that the type face of blade inlet edge 40 and design are consistent, and then guarantees that blade has good aeroperformance.
Technical principle of the invention is: by the first shell 20 and second shell 30 of change blade in up-front cut-point
Position makes 40 shape of blade inlet edge mold error when no longer being produced so that at least partly blade inlet edge 40 is integrally formed
It influences, to solve the problems, such as blade aerodynamic reduced performance caused by 40 meshing error of blade inlet edge when as molding.
For the ease of processing, production cost is reduced, along the length direction of blade, cut-off rule 11 is integrally located at blade inlet edge 40
Side, namely: blade inlet edge 40 be integrally formed in first shell 20 or second shell 30.The first shell molded in this way
20 and second shell 30 structure it is all relatively simple, subsequent molding is more convenient, can reduce the cumbersome degree of labour, and then improve work
Efficiency.
It should be noted that cut-off rule 11 to be usually set to the leading edge vertex of aerofoil profile in the prior art.And the present embodiment
It has completely been adjusted to the side of blade inlet edge 40.In other embodiments, cut-off rule 11 can be made of multistage, example
Such as, a part is located on the suction surface of the side of blade inlet edge 40, and rest part is located at the pressure of the other side of blade inlet edge 40
On face.In another example a part is located on the suction surface of the side of blade inlet edge 40, rest part is located at the leading edge of blade inlet edge 40
On the line on vertex.
In another example along the length direction of blade, before so that the cut-off rule 11 of the blade tip section positioned at blade is located at blade
The side of edge 40, and remainder is still located at the leading edge vertex of blade inlet edge 40 without adjustment.Wherein, blade tip section refers to from leaf
Point plays 30% length of blade range.Setting is the leading edge degree of engagement due to tip region to the aeroperformance of entire blade in this way
Influence it is more significant, therefore, as long as guaranteeing that the type face of the blade inlet edge 40 of tip region consistent with design mode face is protected
Demonstrate,proving blade has preferable aeroperformance.And only the side that edge 40 in front of the blade is arranged in the blade tip section of cut-off rule 11 can be reduced
Change, reduces cost.
Cut-off rule 11 may be adjusted on suction surface, also may be adjusted on pressure face.Preferably, cut-off rule 11 is at least
A part is located on suction surface.This is done because pressure face is working face, the pressure born in work is big, in order to guarantee blade
There are preferable functional reliability and durability, cut-off rule 11 is preferably adjusted to the lesser suction surface of pressure namely leeward.
Referring to fig. 4, the blade further includes leading edge protection pad pasting 60, and the outside of the blade inlet edge 40 of the blade has recessed
Slot, leading edge protection pad pasting 60 setting is in the groove.By protecting pad pasting 60 to be arranged in groove leading edge, Ke Yibao
The outer surface that card is pasted with the blade of leading edge protection pad pasting 60 is still smooth outer surface, makes the type face and design mode face of blade
Unanimously, so guarantee blade aeroperformance.
It participates in Fig. 5 and provides a kind of blade manufacture method according to another aspect of the present invention, can be manufactured by this method
Above-mentioned blade.
The blade manufacture method includes the following steps:
First shell forming step: first shell 20 is formed by upper mold, the forming surface of upper mold is that design is determining
The type face of first shell 20；
Second shell forming step: second shell 30 is formed by lower mold, the forming surface of lower mold is that design is determining
The die parting line of the type face of second shell 30, upper mold and lower mold is cut-off rule 11；
Blade forming step: first shell 20 and the connection of second shell 30 are formed into blade.
This blade manufacture method passes through the die parting line position for changing second shell 30 and first shell 20, so that blade inlet edge
40 is integrally formed, is not partitioned from, so as to avoid the reduction due to leading edge aeroperformance caused by manufacturing error.
Specifically, in the prior art when manufacturing blade, be using the line on the leading edge vertex of blade inlet edge 40 as point
Secant is now defined as virtual secant 12.In order to reduce processing cost, raising production efficiency utilizes existing equipment as far as possible,
Simultaneously convenient for demoulding, the blade manufacture method of the present embodiment is real preferably by adding auxiliary mould on existing blade mold
Existing blade processing.
If being arranged cut-off rule 11 on pressure face, the type face of first shell 20 just includes that suction base surface and suction prolong
Stretch face two parts.Suction base surface is split to form by blade profile according to virtual secant 12.Suction extended surface be cut-off rule 11 with
Type face between virtual secant 12.
It also includes two parts that this, which just needs the upper mold for molding first shell 20,.Upper mold include upper mold matrix and
Auxiliary mould, the forming surface of upper mold matrix are suction base surface, and the forming surface of auxiliary mould is suction extended surface.Correspondingly, it uses
In the lower mold adaptation for molding second shell 30.
Specific manufacturing process is as follows:
Auxiliary mould is installed on upper mold matrix, for forming the increased type face of first shell 20.
Then leading edge being pasted on the upper mold and protecting pad pasting 60, roller coating gel coat applies on leading edge protection pad pasting 60 later
Layer, and solidify；Then according to existing vane manufacturing process, the following steps: laying exterior skin fiberglass cloth are successively carried out
(exterior skin scrim cloth is laid immediately on leading edge protection pad pasting 60 at this time), laying crossbeam and core material, laying rear reinforce glass
Glass scrim cloth, priming by vacuum, solidification, tears priming by vacuum auxiliary material off, removes auxiliary mould laying inside panel glass fabric
Tool, installation web, hand pastes leading edge bonding angle at cut-off rule 11.Thus first shell 20 is molded.
It can be molded in the step of being repeated on lower mold in addition to installing auxiliary mould and pasting leading edge protection pad pasting 60
Second shell 30.
First shell 20 and second shell 30 are molded later, solidified later, blade demoulding, front and rear edge is cut and hand
Paste reinforcement and etc. complete vane manufacturing.
Thus the section aerofoil profile of the blade after the pad pasting manufactured is still consistent with designing airfoil, also, leading edge protects pad pasting
60 lower section has gel coats (the similar paint in its left and right) protecting effect more preferable.This entire production process is easy to operate, produces matter
Amount can guarantee that blade inlet edge shape and the design perfection of production meet, and can be improved the pneumatic efficiency of blade, and then can mention
The annual electricity generating capacity of high wind-driven generator has important economic significance.When carrying out hand paste reinforcement, the position of reinforcement should be first
The junction of shell 20 and second shell 30.
If being arranged cut-off rule 11 on suction surface, the type face of second shell 30 includes that pressure-based face and pressure extend
Face two parts.Pressure-based face is split to form by blade profile according to virtual secant 12；
Pressure extended surface is the type face between cut-off rule 11 and virtual secant 12.
It includes lower die matrix and auxiliary mould two parts that this, which just needs the lower mold for forming second shell 30,.Lower die base
The forming surface of body is pressure-based face, and the forming surface of auxiliary mould is pressure extended surface.
Compared to manufacturing process above-mentioned in addition to auxiliary mould is mounted on lower die matrix, other processes are with aforementioned one
It causes, details are not described herein again.
It should be noted that first shell 20 is not necessarily formed by upper mold, can also be formed by lower mold.Together
Reason, second shell 30 are also not necessarily formed by lower mold, can be formed by upper mold.
The leading edge that the structure of auxiliary mould and set-up mode etc. are similar to prior art is bonded angle mold, and only its type face is answered
It is determined by design mode face.
According to another aspect of the present invention, a kind of wind-driven generator is provided, wind-driven generator includes at least one blade, until
A few blade is above-mentioned blade.Since the aeroperformance of such blade is more efficient, using the wind-force of such blade
The annual electricity generating capacity of generator is higher.
Blade of the invention has the effect that
The position of the cut-point of blade inlet edge is had adjusted, so that it is at least partly integrally formed to realize blade inlet edge, is guaranteed
Blade inlet edge shape and design are consistent, prevent the decline of blade aerodynamic performance and generated energy decline as caused by production error.
It protects pad pasting to guarantee that blade inlet edge shape and design are consistent by pre-buried leading edge, prevents as caused by production error
The problem of decline of blade aerodynamic performance and generated energy decline.Meanwhile pad pasting causes after avoiding the first spray painting of existing production technology
Pad pasting when be easy to produce bubble, be easy the problems such as damaged, pad pasting too fast failure at bubble.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (5)
1. a kind of blade, which is characterized in that the blade has first shell (20) and second shell (30), the first shell
(20) it is cut-off rule (11) with the joint place of the second shell (30), along the length direction of the blade, is located at least in described
The cut-off rule (11) of the blade tip section of blade is located at the side of blade inlet edge (40), the rest part position of the cut-off rule (11)
In on the line on the leading edge vertex of the blade inlet edge (40) or the rest part of the cut-off rule (11) is located at the blade
The side of the blade inlet edge (40) opposite with blade tip section part of leading edge (40).
2. blade according to claim 1, which is characterized in that be located at least in the cut-off rule of the blade tip section of the blade
(11) on the suction surface of the blade.
3. blade according to claim 1, which is characterized in that the blade further includes leading edge protection pad pasting (60), described
The outside of the blade inlet edge (40) of blade has groove, and leading edge protection pad pasting (60) setting is in the groove.
4. a kind of blade manufacture method, which is characterized in that the blade manufacture method is for any in manufacturing claims 1 to 3
Blade described in, includes the following steps:
Auxiliary mould is installed on upper mold matrix and forms upper mold, or auxiliary mould is installed on lower die matrix and forms lower mold；
Leading edge protection pad pasting (60) is pasted on the upper mold or the lower mold for being equipped with the auxiliary mould；
Roller coating gel coats simultaneously solidify；
The blade is molded by the upper mold and the lower mold.
5. a kind of wind-driven generator, including blade, which is characterized in that the blade is described in any one of claims 1 to 3
Blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510410226.3A CN105089942B (en) | 2015-07-13 | 2015-07-13 | Blade, wind-driven generator and blade manufacture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510410226.3A CN105089942B (en) | 2015-07-13 | 2015-07-13 | Blade, wind-driven generator and blade manufacture method |
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| Publication Number | Publication Date |
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| CN105089942A CN105089942A (en) | 2015-11-25 |
| CN105089942B true CN105089942B (en) | 2019-01-29 |
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| CN201510410226.3A Active CN105089942B (en) | 2015-07-13 | 2015-07-13 | Blade, wind-driven generator and blade manufacture method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843486B (en) * | 2018-07-30 | 2023-10-13 | 中科国风检测（天津）有限公司 | Wind power blade leading edge protection system and construction process |
| CN109113926B (en) * | 2018-11-12 | 2023-09-22 | 北京博亦睿科技有限公司 | Blade tip extending structure and method of wind power blade |
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| EP2363599A2 (en) * | 2010-02-26 | 2011-09-07 | REpower Systems AG | Rotor blade for a wind turbine, wind turbine and method for manufacturing a rotor blade |
| CN103069157A (en) * | 2010-07-01 | 2013-04-24 | Lm玻璃纤维制品有限公司 | Wind turbine blade for a rotor of a wind turbine |
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| CN1867770A (en) * | 2003-02-28 | 2006-11-22 | 维斯塔斯风力系统有限公司 | Method for manufacturing a wind turbine blade, wind turbine blade, front cover and use of a front cover |
| CN101149041A (en) * | 2006-09-22 | 2008-03-26 | 通用电气公司 | Bond line forming method |
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| CN105089942A (en) | 2015-11-25 |
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