CN113738571A - Carbon glass mixed pultrusion plate main beam and wind power blade - Google Patents
Carbon glass mixed pultrusion plate main beam and wind power blade Download PDFInfo
- Publication number
- CN113738571A CN113738571A CN202111159906.4A CN202111159906A CN113738571A CN 113738571 A CN113738571 A CN 113738571A CN 202111159906 A CN202111159906 A CN 202111159906A CN 113738571 A CN113738571 A CN 113738571A
- Authority
- CN
- China
- Prior art keywords
- carbon
- glass
- main beam
- glass mixed
- pultrusion
- 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.)
- Pending
Links
- 239000011521 glass Substances 0.000 title claims abstract description 141
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 92
- 239000004744 fabric Substances 0.000 claims abstract description 79
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 72
- 239000004917 carbon fiber Substances 0.000 claims abstract description 72
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000002184 metal Substances 0.000 claims abstract description 24
- 239000003365 glass fiber Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 16
- 239000011162 core material Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims 1
- 239000004020 conductor Substances 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 39
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010248 power generation 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
-
- 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
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
-
- 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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/30—Lightning protection
-
- 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
- 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
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Laminated Bodies (AREA)
Abstract
The invention particularly discloses a carbon-glass mixed pultrusion plate main beam and a wind power blade, wherein the main beam comprises a plurality of carbon-glass mixed pultrusion plates and a plurality of first conductive fabrics; stacking a plurality of carbon glass co-extrusion plates along the width direction and the thickness direction; a first conductive fabric is laid between two adjacent layers of the carbon glass mixed pultrusion plates; the first conductive fabrics exceed the corresponding carbon glass mixed pultrusion plates on each layer and tightly cling to the side surfaces of the carbon glass mixed pultrusion plates downwards or upwards, so that lap joints are formed between two adjacent layers of the first conductive fabrics, the carbon fibers of the whole main beam are communicated, and a lightning protection equipotential structure is formed; the blade passes through conductive fabric with girder and metal mesh overlap joint, mixes the pultrusion board girder with lightning protection system and carbon glass and is connected formation equipotential, finally constitutes the electric route of a conductor intercommunication, when lightning protection system is flowed through to the thunder and lightning, can not respond to great potential difference in the carbon fiber, between lightning protection system and carbon fiber, perhaps there is not the risk of puncturing between carbon fiber and the carbon fiber.
Description
Technical Field
The invention belongs to the technical field of wind power generation, and particularly relates to a carbon-glass mixed pultrusion plate main beam and a wind power blade.
Background
The blades are longer and longer along with the continuous lengthening of the diameter of the wind wheel of the wind driven generator; carbon fiber pultruded panels have been applied to blade girders for light weight, high modulus and high strength. However, carbon fiber is expensive, and thus a concept of carbon glass mixing has been proposed. Present carbon glass mixes pultrude panel and is the fine fibre of glass parcel carbon fiber structure, the carbon fiber is in the isolated state, because carbon fiber itself is the conductor, when the lightning protection system is flowed through to the thunder and lightning, can respond to high voltage and heavy current in the carbon fiber, between lightning protection system and carbon fiber, there is the risk of electric breakdown between carbon fiber and the carbon fiber, and carbon glass mixes pultrude panel cross-section and is the unable blade curved surface appearance that adapts to of rectangle, horizontal arrangement in-process does not to dock completely, the stack, discharge, there is the horizontal dislocation condition among the filling process, be unfavorable for establishing electrical connection. Therefore, the application of the existing carbon glass mixed pultrusion plate brings great challenges to lightning protection of the blade.
Disclosure of Invention
The invention aims to provide a carbon-glass mixed pultrusion plate girder which is formed by laying a carbon-glass mixed pultrusion plate.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a carbon glass mixes pultrusion board girder which characterized in that: the carbon glass mixed pultrusion plate comprises a plurality of carbon glass mixed pultrusion plates and a plurality of first conductive fabrics, wherein the carbon glass mixed pultrusion plates comprise carbon fibers and glass fibers; the plurality of carbon glass mixed pultrusion plates are stacked in the width direction and the thickness direction; a first conductive fabric is laid between two adjacent layers of the carbon glass mixed pultrusion plates; the first conductive fabric exceeds the corresponding carbon glass mixed pultrusion plate on each layer and sticks to the side face of the carbon glass mixed pultrusion plate downwards or upwards, so that a lap joint is formed between two adjacent layers of the first conductive fabric, the carbon fibers of the whole main beam are communicated, and a lightning protection equipotential structure is formed.
Further, the cross-sectional structure of the carbon glass mixed pultrusion plate is that glass fibers are distributed in the central layer, and carbon fibers are distributed on the periphery;
or the carbon fibers are distributed on the upper layer and the lower layer, and the glass fibers are distributed on the middle layer to form a sandwich structure;
or, the carbon fiber is distributed in the center and two ends, and the glass fiber is distributed in the upper end and the lower end;
or, the carbon fiber and the glass fiber are mixed and distributed, and the carbon fiber is filled in the gap between the glass fibers;
or, the glass fiber is distributed on the upper layer, and the carbon fiber is distributed on the lower layer.
Further, the carbon-glass mixed pultrusion plate is formed by adopting a pultrusion process.
Further, the first conductive fabric is a carbon fiber cloth liner, and the first conductive fabric is laid in a whole block in a chord direction or in a plurality of overlapping ways in the chord direction.
Further, the first conductive fabric exceeds the carbon glass mixed pultrusion plate by 30 mm.
The invention also aims to provide a wind power blade which comprises an upper blade shell, a lower blade shell and a web plate, wherein the web plate connects the upper blade shell and the lower blade shell into a whole;
the blade upper shell and the blade lower shell comprise core materials, outer skins, inner skins and the main beam of claims 1-5; the core material and the main beam are butted into a whole, the outer side of the whole covers the outer skin, and the inner side of the whole covers the inner skin.
Furthermore, a metal net is arranged on the outer side of the outer skin and is located on the outer side of the outer skin and corresponding to the main beam, and the metal net is used for protecting the main beam from being directly struck by thunder and lightning.
Further, setting an equipotential in the length direction of the main beam at certain intervals, and connecting the carbon fiber at the outermost side of the main beam with the metal net; preferably, the main beam is provided with an equipotential every 10m in the length direction.
Furthermore, the equipotentials are connected through a second conductive fabric, the second conductive fabric penetrates through the outer skin gap, the outer side of the second conductive fabric is in lap joint with the metal net, and the inner side of the second conductive fabric is in lap joint with the main beam.
Further, the second conductive fabric is carbon cloth or metal mesh or metal wire bundle.
The beneficial effects of this technical scheme lie in:
1. the carbon fiber in the main beam of the carbon glass mixed pultrusion plate is an integral body, and as can be seen from the cross section of the main beam, the five carbon glass mixed pultrusion plates are laid by different laying methods or directly, and the carbon fiber of the whole main beam forms a net-shaped structure under the connection of the first conductive fabric, the carbon fiber is communicated everywhere, and the structure can enable the local part to be in an equipotential, so that the potentials of the carbon glass mixed pultrusion plate are equal or have small difference.
2. According to the wind power blade, the main beam and the metal net are connected in an overlapping mode through the second conductive fabric. Doing like this and mixing the pultrusion board girder with the carbon glass with the lightning protection system and being connected and form the equipotential, through finite element analysis and lightning stroke experimental demonstration, the equipotential that distributes at interval 10m can satisfy the potential difference requirement, finally constitutes the electric route of a conductor intercommunication, when the lightning protection system is flowed through to the thunder and lightning, can not respond to great potential difference in the carbon fiber, between lightning protection system and carbon fiber, perhaps there is not the risk of puncturing between carbon fiber and the carbon fiber.
3. The carbon glass mixed pultrusion plate disclosed by the invention is constructed by adopting the first conductive fabric to detour and establish equipotential connection, the carbon glass mixed pultrusion plate is not required to have penetrated carbon fibers, and the carbon glass mixed pultrusion plate is simple to process and manufacture and high in production efficiency.
4. The carbon glass mixed pultrusion plate and the application method thereof on the wind power blade are not influenced by the curved surface of the wind power blade, and do not need the direct contact of the carbon fiber chord direction of the carbon glass mixed pultrusion plate, but the carbon glass mixed pultrusion plate is connected with the first conductive fabric, and each layer of the first conductive fabric is communicated in a detour way from two sides, so that the establishment of a lightning protection system is not influenced by the butt joint gap and the interlayer dislocation of the carbon glass mixed pultrusion plate.
5. The fourth carbon glass mixed pultrusion plate improves the whole carbon glass mixed pultrusion plate into a conductor, and each carbon glass mixed pultrusion plate is connected into a whole, so that the establishment of a lightning protection system is not influenced, the structure is uniform, no stress is concentrated, and the load transfer is facilitated.
6. According to the invention, the processing difficulty of the carbon-glass mixed pultrusion plate is fully considered, and the production experience of the carbon-glass mixed pultrusion plate in the blade mould and the actual field process is combined, so that the designed carbon-glass mixed pultrusion plate is easy to process and manufacture in batches, and the production process of the wind power blade is high in realizability.
Drawings
FIG. 1 is a schematic structural view of several carbon glass mixed pultruded panels according to the present invention; a is a first carbon glass mixed pultrusion plate; b is a second carbon glass mixed pultrusion plate; c is a third carbon glass mixed pultrusion plate; d is a fourth carbon glass mixed pultrusion plate; e is a fifth carbon glass mixed pultrusion plate;
FIG. 2 is a schematic structural view of a first main beam constructed by a first carbon-glass mixed pultrusion plate according to the invention;
FIG. 3 is a schematic structural view of a main beam constructed by a second carbon-glass hybrid pultrusion plate according to the invention;
FIG. 4 is a schematic structural view of a main beam constructed using a third carbon-glass hybrid pultruded panel according to the present invention;
FIG. 5 is a schematic structural view of a main beam constructed according to the present invention using a fourth carbon-glass hybrid pultruded panel;
FIG. 6 is a schematic structural view of a first main beam constructed by a fifth carbon-glass hybrid pultrusion plate according to the invention;
FIG. 7 is a schematic structural view of a second main beam constructed by a fifth carbon-glass hybrid pultrusion plate according to the invention;
FIG. 8 is a cross-sectional equivalent circuit model of the second conductive fabric of the main beam laid by the first carbon-glass mixed pultrusion plate according to the invention;
FIG. 9 is a cross-sectional equivalent circuit model of the girder according to the present invention, where the second conductive fabric is laid by using the second carbon-glass hybrid pultrusion plate;
FIG. 10 is a cross-sectional equivalent circuit model of the second conductive fabric of the main beam laid by the third carbon-glass mixed pultrusion plate according to the invention;
FIG. 11 is a cross-sectional equivalent circuit model of the second conductive fabric of the main beam laid by the fourth carbon-glass mixed pultrusion plate according to the invention;
FIG. 12 is a cross-sectional equivalent circuit model of the second conductive fabric of the first main beam laid by the fifth carbon-glass mixed pultrusion plate according to the invention;
FIG. 13 is a cross-sectional equivalent circuit model of a second conductive fabric of a second main beam laid by a fifth carbon-glass mixed pultrusion plate according to the invention;
FIG. 14 is a schematic structural diagram of a wind turbine blade according to the present invention;
FIG. 15 is an exploded view of the second conductive fabric connection;
FIG. 16 is a blade lightning protection equivalent circuit diagram model.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: 1. a main beam; 2. c, drawing and extruding the plate with the carbon glass; 21. carbon fibers; 22. glass fiber; 3. a first conductive fabric; 4. a blade upper shell; 5. a blade lower shell; 6. a web; 7. a core material; 8. an outer skin; 81. an outer skin gap; 9. an inner skin; 10. a metal mesh; 11. a second conductive fabric; 12. grounding; 13. a lightning strike point.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A main beam of a carbon-glass mixed pultrusion plate comprises a plurality of carbon-glass mixed pultrusion plates 2 and a plurality of first conductive fabrics 3, wherein each carbon-glass mixed pultrusion plate comprises carbon fibers 21 and glass fiber 22; a plurality of carbon glass mixed pultrusion plates 2 are stacked in the width direction and the thickness direction; a first conductive fabric 3 is laid between two adjacent layers of the carbon glass mixed pultrusion plates 2; first conductive fabric 3 surpasses and corresponds every layer of carbon glass and thoughtlessly draws about 30mm of crowded board and downward or upwards paste tight carbon glass and thoughtlessly draw crowded board side, makes and forms the overlap joint between adjacent two-layer first conductive fabric 3, with the carbon fiber intercommunication of whole girder 1, forms lightning protection equipotential structure. The first conductive fabric 3 is a carbon fiber cloth liner, and the first conductive fabric is laid in a chord-wise whole block manner or in a chord-wise plurality of overlapped manner.
According to the invention, the main beam 1 is formed by connecting the carbon fibers 21 in the carbon glass mixed pultrusion plate 2 with the first conductive fabrics 3, the first conductive fabrics 3 exceed two sides of the main beam 1 for a certain distance, at least upper and lower layers of the first conductive fabrics are lapped on the side surface of the main beam, and thus the carbon fiber mats of each layer of the carbon glass mixed pultrusion plate 2 are communicated in a bypassing way through two sides, so that a lightning protection equipotential structure is formed. Fig. 1 shows several carbon glass mixed pultruded panels 2 according to the present invention:
according to the first carbon glass mixed pultrusion plate 2, the cross section structure of the carbon glass mixed pultrusion plate is that glass fibers 22 are distributed in the central layer, and carbon fibers 21 are distributed on the periphery.
According to the second carbon glass mixed pultrusion plate 2, the cross-sectional structure of the carbon glass mixed pultrusion plate is that carbon fibers 21 are distributed on an upper layer and a lower layer, and glass fibers 22 are distributed on a middle layer, so that a sandwich structure is formed.
According to the third carbon glass mixed pultrusion plate 2, the cross-sectional structure of the carbon glass mixed pultrusion plate is that carbon fibers 21 are distributed at the center and two ends, and glass fibers 22 are distributed at the upper end and the lower end.
According to the fourth carbon glass mixed pultrusion plate 2, the cross section structure of the carbon glass mixed pultrusion plate is that carbon fibers 21 and glass fibers 22 are mixed and distributed, and the carbon fibers 21 are filled in gaps among the glass fibers 22. Because glass fiber 22 is more thick than carbon fiber 21, consequently can utilize this point, control the clearance between the glass fiber 22, adopt carbon fiber 21 to fill the clearance, and the silk bundle has the condition of skew in the traction process, consequently has crossing between the carbon fiber yarn bundle to let the whole carbon fiber intercommunication of carbon glass mixed pultrusion board.
According to the fifth carbon glass mixed pultrusion plate 2, the cross section structure of the carbon glass mixed pultrusion plate is that the glass fibers 22 are distributed on the upper layer, and the carbon fibers 21 are distributed on the lower layer.
The carbon-glass mixed pultrusion plate 2 is formed by adopting a pultrusion process, and a strip-shaped plate is formed by arranging yarns of carbon fiber and glass fiber raw yarns, dipping the yarns, preforming, pultrusion molding and curing the yarns and pulling the yarns under the action of traction force.
The five carbon glass mixed pultrusion plates 2 are adopted to lay the main beam 1.
Fig. 2 is a main beam 1 paved with a first carbon-glass mixed pultrusion plate 2, the carbon-glass mixed pultrusion plates 2 are stacked in the width direction and the thickness direction, and a first conductive fabric 3 is paved between two adjacent layers of carbon-glass mixed pultrusion plates 2; first conductive fabric 3 surpasses and corresponds every layer of carbon glass and mixes pultrusion 30mm and pastes the carbon glass and mix pultrusion 2 side face of pasting down tightly, guarantees that first conductive fabric 3 mixes the carbon fiber side face contact of pultrusion 2 with the carbon glass, forms the overlap joint between the adjacent two-layer first conductive fabric 3. Fig. 8 is a cross-section equivalent circuit model of the second conductive fabric 11 of the main beam 1 laid by the first type of carbon-glass mixed pultrusion plate 2.
Fig. 3 is a main beam 1 paved with a second carbon glass mixed pultrusion plate 2, the carbon glass mixed pultrusion plates 2 are stacked in the width direction and the thickness direction, a first conductive fabric 3 is paved between two adjacent layers of carbon glass mixed pultrusion plates 2, a layer of first conductive fabric 3 is paved on the uppermost layer of carbon glass mixed pultrusion plate 2, the first conductive fabric 3 exceeds 30mm corresponding to each layer of carbon glass mixed pultrusion plate and is tightly adhered to the side surface of the carbon glass mixed pultrusion plate 2 downwards, the first conductive fabric 3 is ensured to be contacted with the side surface of carbon fiber of the carbon glass mixed pultrusion plate 2, and lap joints are formed between two adjacent layers of first conductive fabrics 3. Fig. 9 is a cross-section equivalent circuit model of the second conductive fabric 11 of the main beam 1 laid by the second type of carbon glass mixed pultrusion plate 2.
Fig. 4 shows a main beam 1 laid by a third carbon-glass mixed pultrusion plate 2, which is laid in the same manner as the main beam laid by the first carbon-glass mixed pultrusion plate. Fig. 10 is a cross-section equivalent circuit model of the second conductive fabric 11 of the main beam 1 laid by the third carbon glass mixed pultrusion plate 2.
Fig. 5 shows a main beam 1 laid by a fourth carbon-glass mixed pultrusion plate 2, which is laid in the same manner as the main beam laid by the first carbon-glass mixed pultrusion plate. Fig. 11 is a cross-section equivalent circuit model of the second conductive fabric 11 of the main beam 1 laid by the fourth carbon glass mixed pultrusion plate 2.
Fig. 6 is a first main beam 1 paved by a fifth type of carbon-glass mixed pultrusion plate 2, wherein the carbon-glass mixed pultrusion plates 2 are stacked in the width direction and the thickness direction, the carbon fiber surfaces of the carbon-glass mixed pultrusion plates 2 are all stacked downwards, and a first conductive fabric 3 is paved between two adjacent layers of carbon-glass mixed pultrusion plates 2; first conductive fabric 3 surpasses and corresponds every layer of carbon glass and mixes pultrusion board 30mm and pastes the carbon glass of tight downwards and mix pultrusion board side, guarantees that first conductive fabric 3 mixes the carbon fiber side contact of pultrusion board 2 with the carbon glass, forms the overlap joint between the adjacent two-layer first conductive fabric 3. Fig. 12 is a cross-sectional equivalent circuit model of the second conductive fabric 11 of the first main beam 1 laid by the fifth type of carbon-glass mixed pultrusion plate 2.
FIG. 7 is a second main beam 1 laid by a fifth type of carbon-glass mixed pultrusion plate 2, the carbon-glass mixed pultrusion plates are stacked in the width direction and the thickness direction, the lower side of the first layer of carbon-glass mixed pultrusion plate is a carbon fiber surface, and the upper side of the first layer of carbon-glass mixed pultrusion plate is a glass fiber surface; the lower side of the second layer of carbon-glass mixed pultrusion plate is a glass fiber surface, and the upper side of the second layer of carbon-glass mixed pultrusion plate is a carbon fiber surface; the third layer carbon glass mixes the pultrusion board downside and is the carbon fiber face, and the upside is the fine face of glass, and except first layer, the follow-up every layer of carbon glass of guaranteeing mixes the pultrusion board carbon fiber and puts in the face of carbon fiber face, and fine face of glass fiber is put in the face of glass fiber face. Wherein, a first conductive fabric is paved between the carbon fiber surface and the carbon fiber surface, and a glass fiber cloth liner is paved between the glass fiber surface and the glass fiber surface. Fig. 13 is a cross-sectional equivalent circuit model of the second conductive fabric 11 of the second main beam 1 laid by the fifth type of carbon-glass mixed pultrusion plate 2.
Example 2
As shown in fig. 14, the present invention provides a wind turbine blade, which includes a blade upper shell 4, a blade lower shell 5 and a web 6, wherein the web 6 connects the blade upper shell 4 and the blade lower shell 5 into a whole; the blade upper shell 4 and the blade lower shell 5 both comprise a core material 7, an outer skin 8, an inner skin 9 and the main beam 1 in the embodiment 1; the core material 7 and the main beam 1 are butted into a whole, the outer side of the whole is connected with an outer skin 9, and the inner side of the whole is connected with an inner skin 10.
As shown in fig. 14, 15 and 16, the wind turbine blade is provided with a metal mesh 10 on the outer side of the outer skin 9, the metal mesh 10 is specifically located on the outer side of the outer skin 9 and corresponds to the position of the main beam 1, the root of the metal mesh 10 is grounded, and the metal mesh 10 is used for receiving lightning and conducting lightning current to protect the main beam 1 from being directly struck by lightning. Meanwhile, the equipotential of the metal net 10 and the main beam is arranged every 10m in the length direction of the main beam 1, and the carbon fiber 21 on the outermost side of the main beam 1 is connected with the metal net 10 to finally form a lightning protection system of the wind power blade. The specific equipotential position is that a gap is axially cut at the central position of the main beam 1 corresponding to the outer skin 8, the gap 81 of each outer skin is staggered by a certain distance in the chordwise direction, the second conductive fabric 11 penetrates through the gap 81 of the outer skin, the outer side is in lap joint with the metal mesh 10, and the main beam 1 is placed on the inner side and then is in lap joint with the main beam carbon fiber. The second conductive fabric 11 is a carbon cloth or a metal mesh or a metal wire bundle.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. The utility model provides a carbon glass mixes pultrusion board girder which characterized in that: the carbon glass mixed pultrusion plate comprises a plurality of carbon glass mixed pultrusion plates and a plurality of first conductive fabrics, wherein the carbon glass mixed pultrusion plates comprise carbon fibers and glass fibers; the plurality of carbon glass mixed pultrusion plates are stacked in the width direction and the thickness direction; a first conductive fabric is laid between two adjacent layers of the carbon glass mixed pultrusion plates; the first conductive fabric exceeds the corresponding carbon glass mixed pultrusion plate on each layer and sticks to the side face of the carbon glass mixed pultrusion plate downwards or upwards, so that a lap joint is formed between two adjacent layers of the first conductive fabric, the carbon fibers of the whole main beam are communicated, and a lightning protection equipotential structure is formed.
2. The carbon-glass hybrid pultruded panel girder according to claim 1, characterized in that: the cross section structure of the carbon glass mixed pultrusion plate is that glass fibers are distributed in the central layer, and carbon fibers are distributed on the periphery;
or the carbon fibers are distributed on the upper layer and the lower layer, and the glass fibers are distributed on the middle layer to form a sandwich structure;
or, the carbon fiber is distributed in the center and two ends, and the glass fiber is distributed in the upper end and the lower end;
or, the carbon fiber and the glass fiber are mixed and distributed, and the carbon fiber is filled in the gap between the glass fibers;
or, the glass fiber is distributed on the upper layer, and the carbon fiber is distributed on the lower layer.
3. The carbon-glass hybrid pultruded panel girder according to claim 2, characterized in that: the carbon-glass mixed pultrusion plate is formed by adopting a pultrusion process.
4. The carbon-glass hybrid pultruded panel girder according to claim 1, characterized in that: the first conductive fabric is carbon fiber cloth liner, and the first conductive fabric is laid in a chord-wise whole block mode or in a chord-wise plurality of overlapped modes.
5. The carbon-glass hybrid pultruded panel girder according to claim 4, wherein: the first conductive fabric exceeds the carbon glass mixed pultrusion plate by 30 mm.
6. A wind-powered electricity generation blade which characterized in that: the blade comprises an upper blade shell, a lower blade shell and a web plate, wherein the upper blade shell and the lower blade shell are connected into a whole through the web plate;
the blade upper shell and the blade lower shell respectively comprise a core material, an outer skin, an inner skin and the main beam of any one of claims 1 to 5; the core material and the main beam are butted into a whole, the outer side of the whole covers the outer skin, and the inner side of the whole covers the inner skin.
7. The wind turbine blade of claim 6, wherein: the outer side of the outer skin is provided with a metal net, and the metal net is located on the outer side of the outer skin and corresponds to the position of the girder and is used for protecting the girder from being directly struck by thunder and lightning.
8. The wind blade of claim 7, wherein: and the length direction of the main beam is provided with an equipotential at intervals, and the carbon fiber at the outermost side of the main beam is connected with the metal net.
9. The wind blade of claim 8, wherein: the equipotential is connected by the second conductive fabric, and the second conductive fabric passes through the outer skin gap, and the outside is lapped with the metal mesh, and the inside is lapped with the main beam.
10. The wind blade of claim 9, wherein: the second conductive fabric is carbon cloth or metal mesh or metal wire bundle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159906.4A CN113738571A (en) | 2021-09-30 | 2021-09-30 | Carbon glass mixed pultrusion plate main beam and wind power blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159906.4A CN113738571A (en) | 2021-09-30 | 2021-09-30 | Carbon glass mixed pultrusion plate main beam and wind power blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113738571A true CN113738571A (en) | 2021-12-03 |
Family
ID=78725818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111159906.4A Pending CN113738571A (en) | 2021-09-30 | 2021-09-30 | Carbon glass mixed pultrusion plate main beam and wind power blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113738571A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738572A (en) * | 2021-10-13 | 2021-12-03 | 吉林重通成飞新材料股份公司 | Novel wind-powered electricity generation blade girder, wind-powered electricity generation blade |
| CN114523694A (en) * | 2021-12-30 | 2022-05-24 | 中复碳芯电缆科技有限公司 | Production process and production equipment for carbon fiber coated glass fiber pultruded panel |
| EP4227076A1 (en) * | 2022-02-11 | 2023-08-16 | LM Wind Power A/S | Two-stage pultrusion for manufacturing components of a wind turbine blade |
| EP4227075A1 (en) * | 2022-02-11 | 2023-08-16 | LM Wind Power A/S | Hybrid pultrusion plates for a conductive spar cap of a wind turbine blade |
-
2021
- 2021-09-30 CN CN202111159906.4A patent/CN113738571A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738572A (en) * | 2021-10-13 | 2021-12-03 | 吉林重通成飞新材料股份公司 | Novel wind-powered electricity generation blade girder, wind-powered electricity generation blade |
| CN113738572B (en) * | 2021-10-13 | 2023-08-08 | 吉林重通成飞新材料股份公司 | Wind-powered electricity generation blade girder, wind-powered electricity generation blade |
| CN114523694A (en) * | 2021-12-30 | 2022-05-24 | 中复碳芯电缆科技有限公司 | Production process and production equipment for carbon fiber coated glass fiber pultruded panel |
| EP4227076A1 (en) * | 2022-02-11 | 2023-08-16 | LM Wind Power A/S | Two-stage pultrusion for manufacturing components of a wind turbine blade |
| EP4227075A1 (en) * | 2022-02-11 | 2023-08-16 | LM Wind Power A/S | Hybrid pultrusion plates for a conductive spar cap of a wind turbine blade |
| WO2023152053A1 (en) * | 2022-02-11 | 2023-08-17 | Lm Wind Power A/S | Hybrid pultrusion plates for a conductive spar cap of a wind turbine blade |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113738571A (en) | Carbon glass mixed pultrusion plate main beam and wind power blade | |
| CN113316684B (en) | Equipotential bonding of wind turbine rotor blades | |
| CN113316683B (en) | Equipotential bonding of wind turbine rotor blades | |
| US8657582B2 (en) | Lightning protection mesh | |
| EP3483424B1 (en) | A wind turbine blade and a wind turbine | |
| CA2913600C (en) | Conductor joint and conductor joint component | |
| EP4069968B1 (en) | Equipotential bonding of wind turbine rotor blade | |
| US20180156202A1 (en) | Spar cap assembly for a wind turbine rotor blade | |
| JPH0584790B2 (en) | ||
| CN114174672A (en) | Intermediate layer, spar cap and wind turbine blade | |
| US20220018328A1 (en) | Rotor blade of a wind turbine, comprising an insulator layer and a protective layer | |
| US11713749B2 (en) | Lightning protection system for a carbon pultruded blade and carbon pultruded blade | |
| WO2022057990A1 (en) | Lightning protection fabric | |
| CN110126401A (en) | Endurance high strength fibre reinforced resin basis composite material sectional material and preparation method thereof | |
| CN205632999U (en) | Prevent static combined material covering | |
| US20230184225A1 (en) | A wind turbine blade, a wind turbine and a method for manufacturing a wind turbine blade | |
| CN210156160U (en) | Reinforced overhead insulated cable | |
| CN111145956A (en) | Contact wire, contact net and unmanned aerial vehicle | |
| CN209388764U (en) | A kind of novel cross-linked cable | |
| WO2023222172A1 (en) | Equipotential bonding of wind turbine rotor blade | |
| CN116669935A (en) | Hybrid pultruded panels for conductive spar caps of wind turbine blades | |
| CN116006392A (en) | Wind power blade beam cap composite stacking structure and method |
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 |