CN111305997B - Wind power blade and manufacturing method thereof - Google Patents
Wind power blade and manufacturing method thereof Download PDFInfo
- Publication number
- CN111305997B CN111305997B CN202010192075.XA CN202010192075A CN111305997B CN 111305997 B CN111305997 B CN 111305997B CN 202010192075 A CN202010192075 A CN 202010192075A CN 111305997 B CN111305997 B CN 111305997B
- Authority
- CN
- China
- Prior art keywords
- blade
- front edge
- mold
- shell
- notch
- 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.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 25
- 230000001012 protector Effects 0.000 claims abstract description 24
- 125000006850 spacer group Chemical group 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 description 14
- 230000001070 adhesive effect Effects 0.000 description 14
- 239000012790 adhesive layer Substances 0.000 description 8
- 230000006378 damage Effects 0.000 description 5
- 230000003628 erosive effect Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000007373 indentation Methods 0.000 description 4
- 239000011162 core material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000001723 curing Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000011417 postcuring Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 230000009528 severe injury Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/95—Preventing corrosion
-
- 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
Abstract
The invention discloses a wind power blade and a manufacturing method thereof, wherein the wind power blade comprises: the blade comprises a blade body and a plurality of protecting pieces arranged on the front edge of the blade body; the blade body includes: a first housing and a second housing; the protector includes: a first member, a second member, and a third member; the first component is arranged at the front edge of the first shell, and the second component is arranged at the front edge of the second shell; the first member and the second member are oppositely arranged and combined; the first member has a first notch, the second member has a second notch, the first notch and the second notch combine to form a groove, and the third member is accommodated in the groove and shields a joint of the first member and the second member. The third component of the protective piece is positioned at the most front edge of the blade, and the joint of the first component and the second component is shielded, so that the protective piece can bear larger rainwater impact force.
Description
Technical Field
The invention relates to a wind power blade and a manufacturing method thereof.
Background
In the natural environment, foreign matters in the atmosphere can cause very large impact on the leading edge of the blade of the wind generating set, so that the leading edge of the blade is abraded. The damage of the front edge of the blade can cause the further damage of the blade and greatly influence the aerodynamic characteristics of the blade, so that the generating capacity of the wind turbine generator is reduced. The protection of the leading edge of a blade is a key field of concern for wind power blades.
At this stage, leading edge coating and pasting of protective films are two most common leading edge protection techniques.
Patent document CN104254687A (3M innovative company) discloses a shaped protective tape for wind turbine power generating rotor blades, which invention provides a multi-layer protective tape for wind turbine blades, which has a protective top layer comprising a polymeric film and an adhesive bottom layer, and which specifies the thickness of the protective top layer and the adhesive bottom layer. Furthermore, the invention also provides a method for preparing the molding belt and a method for applying the protective belt to the blade, and provides the blade comprising the protective belt.
Patent document CN107207688A (Polytech) discloses polyurethane materials, methods of making such materials and wind turbine blade shrouds. The protective cover is adapted to be attached along at least a portion of the longitudinal edge of the wind turbine blade by gluing the inner side of the protective cover to the surface of the longitudinal edge of the wind turbine blade. The shield includes a central cover portion extending longitudinally and two peripheral cover portions each extending longitudinally on one of two sides of the central cover portion and defining the dimensions of the central cover portion and the peripheral cover portions.
In onshore wind farms with high rainfall as well as offshore wind farms, the extreme rainfall makes the blades coated with paint for leading edge protection very vulnerable to rain erosion, resulting in severe damage to the blades within a few years of operation.
Compared with a front edge paint coating, the protection method of pasting the protective cover on the surface of the blade can delay the rain erosion damage to a certain extent, but the thickness of the front edge of the blade is increased to a certain extent due to pasting the protective cover on the surface of the blade, the aerodynamic appearance of the blade is changed, the aerodynamic performance of the blade is affected, and the generated energy is lost to a certain extent.
Disclosure of Invention
The invention aims to provide a wind power blade and a manufacturing method thereof, the wind power blade has good front edge protection capability, further can prevent the damage of the internal structure of the blade caused by the rain erosion damage of the blade, has the shape consistent with the design shape, avoids the change of the aerodynamic shape of the blade, and reduces the loss of generated energy.
In order to achieve the above object, the present invention provides a wind turbine blade, comprising: the blade comprises a blade body and a plurality of protecting pieces arranged on the front edge of the blade body; the blade body includes: a first housing and a second housing combined with the first housing; the protector comprises: a first member, a second member, and a third member; the first member is arranged at the front edge of the first shell, and the second member is arranged at the front edge of the second shell; the first member and the second member are oppositely arranged and combined; the first member is provided with a first notch, the second member is provided with a second notch, the first notch and the second notch are combined to form a groove, and the third member is accommodated in the groove and shields the joint of the first member and the second member.
Preferably, the first member and the second member are the same in shape and size.
Preferably, a plurality of the protection members are arranged along a longitudinal direction of the blade body.
Preferably, the blade body has a tip, and the protector is disposed near a leading edge of the tip.
Preferably, the protector is selected from a corrosion resistant polymeric material.
Preferably, the protector is in the shape of a sheet.
Preferably, the cross section of the protection piece is crescent-shaped.
Preferably, the outer surfaces of the first, second and third members are smoothly continuous, and/or the protector is smoothly continuous with the outer surface of the blade body not covered by the protector.
The invention also provides a manufacturing method of the wind power blade, which comprises the following steps:
s1, fixing the first component at the position of the longitudinal inner surface of the first blade mould and corresponding to the front edge of the blade, and fixing the second component at the position of the longitudinal inner surface of the second blade mould and corresponding to the front edge of the blade;
s2, forming a first shell and a second shell in the first blade mold and the second blade mold, respectively;
s3, clamping the mold, making the first member and the second member opposite to each other and adhering to each other, and making the first housing and the second housing approach to each other and adhering to each other;
and S4, demolding, and arranging the third component in the groove formed by the first component and the second component.
Preferably, step S1 includes fixing a first pad at a position corresponding to the first notch on the inner longitudinal surface of the first blade mold, and fixing a second pad at a position corresponding to the second notch on the inner longitudinal surface of the second blade mold, and step S4 includes removing the first pad and the second pad after demolding to expose a groove for accommodating the third member.
Compared with the prior art, the invention has the beneficial effects that:
(1) the protective piece is coated on the front edge of the blade body, so that the wind power blade has good front edge protection capability. (2) The third member of the protection member is located at the position of the most front edge of the blade, namely the position of the blade, which is subjected to the maximum impact force of rainwater, and the third member shields the joint of the first member and the second member, so that the protection member has stronger protection capability on the front edge of the blade and can bear larger impact force of rainwater.
Drawings
Fig. 1 is a schematic structural diagram of a wind turbine blade according to the present invention.
FIG. 2 is a cross-sectional view of a wind blade of the present invention.
FIG. 3 is a schematic cross-sectional view of the protector in the embodiment.
Fig. 4 is a schematic cross-sectional view of a first member of the protector in an embodiment.
Fig. 5 is a schematic cross-sectional view of a second member of the protector in an embodiment.
FIG. 6 is a schematic structural view of a third member of the protector in the embodiment.
Fig. 7 is a schematic structural diagram of a spacer in the embodiment.
Fig. 8 is a first schematic view of the lay-up in the blade mould in an embodiment.
Fig. 9 is a second schematic view of the lay-up in the blade mould in an embodiment.
FIG. 10 is a schematic view showing a state after the mold release in the example.
FIG. 11 is a schematic view showing a third member to which the protector is bonded after the mold is removed in the embodiment.
Description of reference numerals:
1. a blade;
11. a leading edge;
12. a trailing edge;
13. a blade tip;
14. a blade root;
15. a PS surface; 151. a first housing; 1511. a first housing upper surface;
16. SS surface; 161. a second housing;
17. a protective member; 171. a first member; 172. a second member; 173 a second member; 174. a groove;
1711. a first surface of a first member; 1712. a second surface of the first member; 1713. a third surface of the first member; 1714. a fourth surface of the first member; 1715. a fifth surface of the first member;
1721. a first surface of a second member; 1722. a second surface of the second member; 1723. a third surface of the second member; 1724. a fourth surface of the second member; 1725. a fifth surface of the second member;
1731. a first surface of a third member; 1732. a second surface of the third member; 1733. a third surface of the third member; 1734. a fourth surface of the third member;
181. a first adhesive layer; 182. a second adhesive layer; 183. a third adhesive layer;
19. an adhesive; 191. an adhesive layer;
2. a blade mold; 21. an upper surface of the blade mold; 22. an inner surface of the blade mold;
3. fiber cloth;
4. cushion blocks; 41. a first surface of the pad; 42. a second surface of the pad; 43. a third surface of the pad; 44. a fourth surface of the pad;
51. a first double-sided tape; 52. a second double-sided tape.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
As shown in fig. 1, a wind turbine blade 1 of the present invention includes: the blade comprises a blade body 10 and a plurality of protecting pieces 17 arranged on the front edge 11 of the blade body 10. The protecting piece 17 is covered on the front edge 11 of the blade body 10, and the protecting pieces 17 are arranged along the longitudinal direction of the blade body 10, so that the wind power blade 1 has good protection capability on the front edge 11.
Fig. 2 is a cross-sectional view of a wind turbine blade 1 according to the invention. As shown in fig. 1 and 2, the blade body 10 has a leading edge 11, a trailing edge 12, a blade tip 13, a blade root 14, a PS face 15, and an SS face 16. The blade body 10 is generally composed of two half shells, i.e., a first shell and a second shell, which are bonded together by an adhesive to form a complete blade. The first and second shells each have a leading edge and a trailing edge. The PS surface 15 and the SS surface 16 are located on the two half-shells, respectively. The longitudinal direction of the blade body 10 is the direction from the blade root 14 to the blade tip 13.
As shown in fig. 3, the protector 17 of the present invention comprises: a first member 171, a second member 172, and a third member 173; the first member 171 is disposed at the front edge of the first housing, and the second member 172 is disposed at the front edge of the second housing; the first member 171 and the second member 172 are oppositely disposed and joined, and the joint forms a seam. In the present embodiment, the first member 171 and the second member 172 are bonded to each other. The first member 171 has a first notch on the outer side thereof, the second member 172 has a second notch on the outer side thereof, and the first notch and the second notch are combined to form a groove 174 for receiving the third member 173 (see fig. 10); the third member 173 is adhered to the recess 174 and covers the seam (see fig. 11). Preferably, the outer surfaces of the first member 171, the second member 172 and the third member 173 are smooth and continuous, as shown in fig. 3, in this embodiment, after the first member 171, the second member 172 and the third member 173 are combined to form the protector 17, the cross section is crescent-shaped, and the thickness gradually decreases from the middle to both sides.
The protection member 17 is made of a corrosion-resistant material, for example, a polymer material having UV and rain resistance is selected.
The existing wind power blade 1 is coated with paint on the front edge 11 of the blade, the blade is easily damaged due to rain erosion, the thickness of the blade is increased due to a protection method of adhering a protective cover on the surface of the blade, the aerodynamic appearance of the blade is changed, and the aerodynamic performance of the blade is affected. The first member 171 and the second member 172 of the protector 17 are laid in a mold when the wind turbine blade is manufactured, and then the third member 173 is bonded. Preferably, the protective member 17 is smooth and continuous with the outer surface of the blade body not covered by the protective member 17, so that the blade profile is consistent with the designed profile, the thickness of the protective member 17 does not cause the aerodynamic profile to change, and the aerodynamic profile is prevented from changing; meanwhile, the third member 173 of the protection member 17 is located at the most front edge of the blade, i.e. the position where the blade is most subjected to the impact force of rainwater, and the third member 173 shields the joint between the first member 171 and the second member 172, so that the protection member 17 has a stronger protection capability against the front edge 11 of the blade and can bear a larger impact force of rainwater.
The protector 17 may be designed in a sheet shape to form a protective film covering the leading edge of the blade body. In the wind power blade 1 of the present invention, a protection member 17 is provided, or a plurality of protection members 17 are arranged along the longitudinal direction of the blade body, so that the protection range of the protection member 17 is expanded. The leading edge 11 of the blade tip 13 is relatively thin and the linear velocity at which the blade tip 13 operates is greatest, with erosion being the most severe in the entire blade. In some embodiments, a plurality of protectors 17 are provided near the leading edge 11 of the blade tip 13. In some embodiments, the protective member 17 is applied to the longitudinal surface of the blade from the root 14 to the tip 13 to provide protection to the leading edge 11.
In the method for manufacturing a wind turbine blade according to the present invention, a first shell of a blade body is manufactured using a first blade mold, and a second shell of the blade body is manufactured using a second blade mold, and the method includes the steps of:
s1, the first member 171 is fixed to the first blade mold at a position corresponding to the leading edge 11 of the blade, and the second member 172 is fixed to the second blade mold at a position corresponding to the leading edge 11 of the blade. Before the first member 171 and the second member 172 are fixed, a first spacer is fixed to an inner surface of the first blade mold at a position corresponding to the first notch, and a second spacer is fixed to an inner surface of the second blade mold at a position corresponding to the second notch.
And S2, forming a first shell and a second shell in the first blade mould and the second blade mould respectively. The shell of the blade can be formed by laying fiber cloth, laying core material, pouring, and curing on the outer side of the protector 17. The fiber cloth laying, core material laying, pouring and curing methods can adopt the existing methods.
S3, the mold is closed, and the first member 171 and the second member 172 are bonded while being opposed to each other, and the first case and the second case are bonded while being brought close to each other.
S4, the mold is removed, and the third member 173 is disposed in the groove formed by the first member 171 and the second member 172.
This step removes the first and second blocks after demolding, exposing the recess for receiving the third member 173.
The first member 171, the second member 172, the first pad block, and the second pad block may be fixed by a double-sided adhesive tape.
Examples
As shown in fig. 3, a schematic structural view of the crescent protector 17 is provided in this embodiment. The first member 171 and the second member 172 are similar in shape, both being "half-moon-shaped" members. The first member 171 is provided with a first indentation on the outside and the second member 172 is provided with a second indentation on the outside, the first and second indentations combining to form a recess 174 for receiving the third member 173. The third member 173 may be completely filled in the recess 174. In the production of the blade, two half shells are usually manufactured by using two blade moulds, and the two half shells are bonded to each other to form the complete blade, so that the protector 17 of the present invention is designed to have a first member 171 and a second member 172 respectively located on the two half shells. The joint of the first member 171 and the second member 172 is located at the most front edge of the blade, and the joint of the first member 171 and the second member 172 is shielded by the third member 173, so that the protection capability of the protector is improved.
A pad is used as a temporary auxiliary material, and the pad is filled in the indentations of the first member 171 and the second member 172, respectively. Fig. 7 is a schematic structural diagram of the spacer 4. The cushion block 4 is made of hard materials such as hardwood, glass fiber reinforced plastics and the like. The head blocks 4 include a first head block and a second head block. The first cushion block and the second cushion block have the same structure. The first spacer block is used for assisting the manufacture of the first shell of the blade, and the second spacer block is used for assisting the manufacture of the second shell of the blade. The first member 171 and the second member 172 are applied to the corresponding blade shell in the same way. The wind turbine blade 1 is manufactured as follows.
1. As shown in fig. 8 and 9, in the longitudinal region of the blade to which the first member 171 is to be applied, a plurality of first pads are successively fixed to the longitudinal inner surface 22 of the blade mold 2 using the first double-sided adhesive tape 51. As shown in fig. 7, the pad 4 has a first surface 41, a second surface 42, a third surface 43, and a fourth surface 44. As shown in fig. 4, first member 171 has a first surface 1711, a second surface 1712, a third surface 1713, a fourth surface 1714, and a fifth surface 1715. The first surface 41 of the spacer 4 follows the inner surface 22 of the blade mould 2, the second surface 42 of the spacer 4 follows the third surface 1713 of the first member 171, and the third surface 43 of the spacer 4 follows the second surface 1712 of the first member 171. With continued reference to fig. 8, the fourth surface 44 of the spacer 4 is flush with the upper surface 21 of the blade mold 2.
2. The plurality of first members 171 are continuously fixed to the longitudinal inner surface 22 of the blade mold 2 using the second double-sided adhesive tape 52. The second and third surfaces 1712, 1713 of the first member 171 are in close proximity to the corresponding pads 44. The first double-sided tape 51 and the second double-sided tape 52 are both temporary fixing materials and have a tensile capacity much smaller than that of the adhesive.
3. The adhesive is uniformly applied to the fifth surface 1715 of the first member 171 in a full coverage manner. The adhesive is an adhesive such as 3M wind blade molding spray glue, which may be combined with a potting resin.
4. With continued reference to fig. 8 and 9, after the fiber cloth 3 is laid, the core material is laid, poured and pre-cured, the first shell 151 of the blade body 10 is formed, and the first component 171 is applied on the first shell 151 of the blade. A first adhesive layer 181 is formed between the fifth surface 1715 of the first member 171 and the first shell 151 of the blade.
5. Referring to steps 1-4, a blade mold is used to apply the second member 172 to the surface of the second shell 161 of the blade (see fig. 10 or fig. 11). As shown in fig. 5, second member 172 has a first surface 1721, a second surface 1722, a third surface 1723, a fourth surface 1724, and a fifth surface 1725. A second adhesive layer 182 is formed between the fifth surface 1725 of the second member 172 and the blade second shell 161.
6. Referring to fig. 9 to 11, after the first blade shell 151 and the second blade shell 161 are pre-cured and molded, an adhesive 19 is applied to the upper surface 1511 of the first blade shell 151, and the second blade shell 161 and the first blade shell 151 are closed and bonded by mold clamping, so as to perform post-curing; the adhesive 19 is a wind blade specific adhesive such as epoxy.
7. After the post-curing is completed, an adhesive layer 191 is formed between the first blade shell 151 and the second blade shell 161, and between the first member 171 and the second member 172.
8. Operating the blade to separate from the blade mold, removing the double-sided adhesive tapes on the surfaces of the first member 171 and the second member 172, removing the cushion blocks from the groove 174, and polishing and cleaning the excess resin or adhesive in the groove 174; the state after the mold release is shown in fig. 10.
9. As shown in fig. 6, third member 173 has a first surface 1731, a second surface 1732, a third surface 1733, and a fourth surface 1734. Referring to fig. 10, an adhesive is applied within the recess 174, the adhesive spreading over the interior surface of the recess 174. As shown in fig. 11, a third member 173 is applied into the recess 174. The first surface 1731 of the third member 173, the first surface 1711 of the first member 171, and the first surface 1721 of the second member 172 are smoothly continuous without steps, and the third adhesive layer 183 is formed between the second surface 1732, the third surface 1733, and the fourth surface 1734 of the third member 173 and the first member 171 and the second member 172, respectively. And (5) finishing blade manufacturing.
In summary, the protection member is covered on the front edge of the blade body, so that the wind power blade has good front edge protection capability.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. A wind turbine blade, comprising: the blade comprises a blade body and a plurality of protecting pieces arranged on the front edge of the blade body; the blade body includes: a first housing and a second housing; the protector includes: a first member, a second member, and a third member; the first member is arranged at the front edge of the first shell, and the second member is arranged at the front edge of the second shell; the first member and the second member are oppositely arranged and combined; the first member is provided with a first notch, the second member is provided with a second notch, the first notch and the second notch are combined to form a groove, and the third member is accommodated in the groove and shields the joint of the first member and the second member; the wind power blade is obtained by a manufacturing method comprising the following steps;
s1, fixing the first component at the position of the longitudinal inner surface of the first blade mould and corresponding to the front edge of the blade, and fixing the second component at the position of the longitudinal inner surface of the second blade mould and corresponding to the front edge of the blade;
s2, forming a first shell and a second shell in the first blade mold and the second blade mold, respectively;
s3, clamping the mold, making the first member and the second member opposite to each other and adhering each other, and making the first housing and the second housing approach each other and adhering each other;
and S4, demolding, and arranging the third member in a groove formed by the first member and the second member.
2. The wind blade of claim 1 wherein the first member and the second member are the same shape and size.
3. The wind turbine blade as claimed in claim 1, wherein a plurality of the protecting members are arranged along a longitudinal direction of the blade body.
4. The wind turbine blade of claim 1 wherein the blade body has a tip and the protective member is disposed proximate a leading edge of the tip.
5. The wind blade as set forth in claim 1 wherein said protective member is selected from a corrosion resistant polymeric material.
6. The wind blade as set forth in claim 1, wherein said protector is sheet-like.
7. The wind blade as set forth in claim 1 wherein said protector is crescent shaped in cross section.
8. The wind blade of claim 1 wherein the outer surfaces of the first, second and third members are smooth and continuous and/or the protective member is smooth and continuous with the outer surface of the blade body not covered by the protective member.
9. The method for manufacturing a wind turbine blade according to any of claims 1 to 8, comprising the steps of:
s1, fixing the first component at the position of the longitudinal inner surface of the first blade mould and corresponding to the front edge of the blade, and fixing the second component at the position of the longitudinal inner surface of the second blade mould and corresponding to the front edge of the blade;
s2, forming a first shell and a second shell in the first blade mold and the second blade mold, respectively;
s3, clamping the mold, making the first member and the second member opposite to each other and adhering each other, and making the first housing and the second housing approach each other and adhering each other;
and S4, demolding, and arranging the third member in a groove formed by the first member and the second member.
10. The method of manufacturing a wind turbine blade according to claim 9, wherein step S1 includes fixing a first spacer block at a position corresponding to the first notch on the inner longitudinal surface of the first blade mold, and fixing a second spacer block at a position corresponding to the second notch on the inner longitudinal surface of the second blade mold, and step S4 includes removing the first spacer block and the second spacer block after demolding to expose a groove for accommodating the third member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010192075.XA CN111305997B (en) | 2020-03-18 | 2020-03-18 | Wind power blade and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010192075.XA CN111305997B (en) | 2020-03-18 | 2020-03-18 | Wind power blade and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111305997A CN111305997A (en) | 2020-06-19 |
| CN111305997B true CN111305997B (en) | 2021-06-25 |
Family
ID=71145757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010192075.XA Active CN111305997B (en) | 2020-03-18 | 2020-03-18 | Wind power blade and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111305997B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448711A (en) * | 2009-04-10 | 2012-05-09 | 湘电达尔文有限责任公司 | A protected wind turbine blade, a method of manufacturing it and a wind turbine |
| CN103511195A (en) * | 2012-06-15 | 2014-01-15 | 歌美飒创新技术公司 | Method for optimizing the efficiency of wind turbine blades |
| EP2927482A1 (en) * | 2014-04-01 | 2015-10-07 | LM WP Patent Holding A/S | A wind turbine blade provided with an erosion shield |
| CN105508131A (en) * | 2016-01-18 | 2016-04-20 | 广东明阳风电产业集团有限公司 | Segmented and combined type wind turbine generator blade and manufacturing method thereof |
| WO2016075619A1 (en) * | 2014-11-10 | 2016-05-19 | Polytech A/S | Polyurethane material, process for preparing such material and protective cover for wind turbine blade |
| EP3144525A1 (en) * | 2015-09-16 | 2017-03-22 | Siemens Aktiengesellschaft | Wind turbine rotor blade and thick leading edge shell |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017012632A1 (en) * | 2015-07-17 | 2017-01-26 | Lm Wp Patent Holding A/S | A wind turbine blade having an erosion shield |
-
2020
- 2020-03-18 CN CN202010192075.XA patent/CN111305997B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448711A (en) * | 2009-04-10 | 2012-05-09 | 湘电达尔文有限责任公司 | A protected wind turbine blade, a method of manufacturing it and a wind turbine |
| CN103511195A (en) * | 2012-06-15 | 2014-01-15 | 歌美飒创新技术公司 | Method for optimizing the efficiency of wind turbine blades |
| EP2927482A1 (en) * | 2014-04-01 | 2015-10-07 | LM WP Patent Holding A/S | A wind turbine blade provided with an erosion shield |
| WO2016075619A1 (en) * | 2014-11-10 | 2016-05-19 | Polytech A/S | Polyurethane material, process for preparing such material and protective cover for wind turbine blade |
| EP3144525A1 (en) * | 2015-09-16 | 2017-03-22 | Siemens Aktiengesellschaft | Wind turbine rotor blade and thick leading edge shell |
| CN105508131A (en) * | 2016-01-18 | 2016-04-20 | 广东明阳风电产业集团有限公司 | Segmented and combined type wind turbine generator blade and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111305997A (en) | 2020-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DK177928B1 (en) | Wind turbine blade with extended shell section | |
| EP3027385B1 (en) | Erosion resistant aerodynamic fairing | |
| US8979500B2 (en) | Method of manufacture of aerofoil leading edge strip | |
| US20190226458A1 (en) | Aerodynamic Shroud and Method | |
| EP3679245B1 (en) | A method for reinforcing a wind turbine blade | |
| KR102326966B1 (en) | Leading edge protection of wind turbine blades | |
| CN108025519A (en) | Wind turbine blade with corrosion protection shield | |
| EP3504428A1 (en) | Protective cover system for protecting a leading edge of a wind turbine rotor blade | |
| US20220258430A1 (en) | Wind turbine blade leading edge protection method | |
| CN111305997B (en) | Wind power blade and manufacturing method thereof | |
| CN113635587A (en) | Method of manufacturing a wind turbine rotor blade | |
| CN111231369B (en) | Protective shell, preparation method thereof and manufacturing method of wind power blade | |
| CN111969316A (en) | Variable-thickness front-part radome with unidirectional tape structure | |
| CN109927318A (en) | A kind of wire arrangements system of wind electricity blade, wind electricity blade and preparation method thereof | |
| CN116658355A (en) | Front edge protection cover of wind turbine blade and high-reliability installation method thereof | |
| CN112810186A (en) | Method of manufacturing a wind turbine blade and a shell body therefor, shell body, wind turbine blade and wind turbine | |
| US20230407754A1 (en) | Composite vane for an aircraft turbomachine and method for the manufacture thereof | |
| EP4230382A1 (en) | Method for applying a protective film on at least one portion of a wind turbine blade, wind turbine blade, and apparatus for forming a groove on a surface of at least one portion of a wind turbine blade | |
| CN112032006A (en) | Protection device, blade and wind turbine generator system | |
| CN116061351A (en) | Manufacturing method of novel megawatt wind power generation blade trailing edge pasting angle die |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |