CN107013408A - A kind of large scale wind power machine subsection blade and attaching method thereof - Google Patents
A kind of large scale wind power machine subsection blade and attaching method thereof Download PDFInfo
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- CN107013408A CN107013408A CN201610053950.XA CN201610053950A CN107013408A CN 107013408 A CN107013408 A CN 107013408A CN 201610053950 A CN201610053950 A CN 201610053950A CN 107013408 A CN107013408 A CN 107013408A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000009826 distribution Methods 0.000 claims abstract description 4
- 238000005498 polishing Methods 0.000 claims description 14
- 238000009434 installation Methods 0.000 claims description 8
- 230000002787 reinforcement Effects 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 239000003566 sealing material Substances 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 4
- 230000008023 solidification Effects 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 230000011218 segmentation Effects 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract description 3
- 230000002950 deficient Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 13
- 238000010008 shearing Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000006260 foam Substances 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
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- 239000011521 glass Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
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Classifications
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- 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
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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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- 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)
- Wind Motors (AREA)
Abstract
The invention discloses a kind of large scale wind power machine subsection blade and attaching method thereof.Large scale wind power machine subsection blade includes that two or more blade sections for forming large scale wind power machine subsection blade can be connected, in blade sections aerofoil profile circumferentially double intersection nut bore；In the distribution of blade sections connecting portion end face with intersecting the one-to-one axial bolts hole of nut bore；Blade sections are fastenedly connected by bolt, connection steelframe；Prefabricated covering is bonded in blade sections junction.The achievable large scale wind power machine blade section manufacture of the present invention, fragmented transport and segmentation connection are installed, and the quality risk for integrally manufacturing and bringing are efficiently avoid, while can also substantially reduce transport of blades difficulty and cost；Changed available for previous short blade is carried out into blade tip section under conditions of structural strength permission；Defective section is replaced available for when locally occurring major quality defect in vane manufacturing or running, so as to reduce the wasting of resources, blade production cost is saved.
Description
Technical field
The present invention relates to large scale wind power machine subsection blade technical field, more particularly to a kind of large scale wind power machine subsection blade and its Novel connecting method.Also relate to a kind of extension of short blade, each section (blade tip in leaf blade root) and damage the technical method that section is changed.
Background technology
For solve fossil fuel apply produced environmental problem, the environment amenable novel energy substitute fossil fuels of mankind's Devoting Major Efforts To Developing, wind energy is the novel energy of one of which Devoting Major Efforts To Developing, is wind-power electricity generation currently with the major way of wind energy.As large scale wind power machine single-machine capacity constantly increases, in order to improve wind energy utilization and capture more wind energies, pneumatic equipment bladess length is also increasingly longer therewith.But with being continuously increased for length of blade, this will bring new challenge to the manufacture of integral blade, transport and installation etc..Business level length of blade has reached 80m or so both at home and abroad at present, reaches that the transport of blades of 60m ranks is extremely difficult for length in fact.So on the one hand the blade of length scale proposes requirements at the higher level to manufacturing process, and operative is difficult, easily causes vane manufacturing defect, and once the local great quality problems of appearance will cause whole blade rejection, and loss is very big；Another aspect blade is longer, more it is not easy to transport of blades and installation, cause transport and installation cost to greatly increase, especially in remote mountain areas, without the more difficult place being sent to such as Transportation Highway, while blade is oversize highway, railway transportation condition may also be caused can not to complete transport task at all.Subsection blade refers to blade of wind-driven generator overall structure being changed to segmental structure, part charge is connected into an entirety with appropriate ways, and do not influence the power generation performance of blade.It will install and bring great convenience to vane manufacturing, transport of blades and blade for the large scale wind power machine blade using segmentation connection.
In the prior art, a kind of attachment means of sectional wind turbine blade of the disclosure of the invention of Application No. 201310695151.9, attachment means include blade shell attachment means and shearing ribs attachment means, housing attachment means include several glass fiber reinforced plastic flanges, glass fiber reinforced plastic flange is molded directly within the section of every section of blade junction, mutual corresponding screw is respectively equipped with relative two glass fiber reinforced plastic flanges connect, screw is provided with bolt, and bolt is provided with self-locking nut；Shearing ribs attachment means include several foams and several glass epoxies, foam is separately positioned between two sections of corresponding shearing ribs, foam is provided with through hole, glass epoxy is separately positioned on the junction on the outside of two sections of corresponding shearings, glass epoxy is provided with corresponding screw with shearing ribs, screw is corresponding with the through hole on foam, and shearing ribs attachment means also include several bolts and self-locking nut.The Chinese invention patent application of Application No. 01410654954.4 discloses a kind of large scale wind power machine subsection blade and its equipped connection method, and the equipped connection method of large scale wind subsection blade includes following step and gathered：(one）, the upper connector one of blade sections one and blade sections two is connected with the connector two of connection matrix left and right ends, blade sections one, blade sections two and connection matrix is connected into entirety；（Two）, the connected with outer casing with blade sections one and blade sections two with consistent aerodynamics profile is arranged on to the outer surface for be connected matrix, make blade integrally with complete aerodynamics profile；（Three）, it is poly- using step（One）With（Two）Be linked in sequence each blade sections successively, completes the assembly and connection of large scale wind power subsection blade；（Four）, the mode pasted with hand superscribe glass-fiber-fabric protective layer in the outer surface of each blade sections and connected with outer casing contact site；（Five）, the blade surface that is formed by connecting after polishing, in the outer surface Puttying of blade, blade surface is polished smooth after putty is dry, finally varnished with lacquer in blade surface.Above prior art, is further improved.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of large scale wind power machine subsection blade and attaching method thereof, and its simple to operate, connection is reliable, are connected for sectional-type blade, short blade elongated segment connects and damaged the connection of section blade exchanging.
The technical solution adopted in the present invention is：A kind of large scale wind power machine subsection blade connection method, the large scale wind power machine subsection blade includes that two or more blade sections for forming large scale wind power machine subsection blade can be connected, in blade sections aerofoil profile circumferentially double intersection nut bore；In the distribution of blade sections connecting portion end face with intersecting the one-to-one axial bolts hole of nut bore；Blade sections are fastenedly connected by bolt, connection steelframe；Prefabricated covering is bonded in blade sections junction.
Circumferentially and opened up in blade sections connecting portion along aerofoil profile to increase multilayer glass-fiber-fabric progress structural strengthening, perfusion forms uniform thickness glass fibre reinforced plastic structure into presumptive area after solidifying in exhibition.
Shape, the structure of the connection steelframe are engaged with blade sections junction；Each blade sections are formed by composite.
The connecting portion outer surface of two neighboring blade sections is provided with groove；When being bonded prefabricated covering, prefabricated covering is bonded in the groove of two neighboring blade sections connecting portion by polishing, cleaning, bonding, reinforcement, repairing type and spraying coating process step.
Each blade sections connecting portion sectional uniform and along the circumferential double intersection nut bore of equidistantly distributed of aerofoil profile, makes installation intersect nut rear blade surface transition smooth by processing.
Blade sections connecting portion exhibition to T-bolt length is interlocked, is closely uniformly distributed；It is circumferential in aerofoil profile, firmly connect blade sections with T-bolt.
The connection steelframe includes anterior steelframe, steelframe middle part, steelframe rear portion；Connection steelframe both sides end face is set to keep smooth and make connection steelframe both sides end face and horizontal plane before installation, the T-bolt that the structure of connection steelframe is different from two neighboring blade sections connecting portion both sides length is engaged, so as to which two neighboring blade sections firmly be connected, and moment values are given by design requirement by T-bolt, connection steelframe；The connection steelframe profile outer surface is than the low 5mm in blade sections connecting portion outer surface, for that can be smoothly transitted between each blade sections after follow-up prefabricated covering covering.
It is in reinforcement connection in shear web connecting portion with web connecting plate and bolt assembly；Web connecting plate is arranged on the both sides of connection steelframe；Web connecting plate and connection steelframe formation intermediate connector；Prefabricated covering is fastenedly connected with being connected steelframe by screw, and in prefabricated covering with carrying out encapsulation process using weather resistant sealing material in the gap of blade body combination side.
Large scale wind power machine subsection blade Connection Step includes：
The step of web is connected；
The step of aerofoil transition agent structure is connected；
The step of prefabricated covering repairing type is connected；
Web connecting plate is connected with the shear web of blade sections, fixed with bolt assembly；Intermediate connector is connected with blade sections end face with bolt and nut, fixed with bolt；Prefabricated prefabricated covering is adhered on intermediate connector, after after the bonding solidification of prefabricated covering, fully polish prefabricated covering, blade adjacent regions, then polishing position is cleaned out, prefabricated covering and blade bonding are fixedly connected with structure glue and screw, after after structure adhesive curing, polishing bonding site surface, cleaning polishing position, blade coating putty, paint make blade surface no color differnece.
A kind of large scale wind power machine subsection blade, including intermediate connector, prefabricated covering, it can connect and form two or more blade sections of large scale wind power machine subsection blade, the blade includes blade web, and blade sections include shear web, and blade web is formed by connecting by the shear web of each blade sections；Intermediate connector includes connection steelframe and is connected to the web connecting plate on connection steelframe both sides；Blade sections connecting portion intersects nut bore along the circumferentially distributed double radial direction of aerofoil profile, is distributed with blade sections connecting portion end face with intersecting the one-to-one axial bolts hole of nut bore, for being connected with T-bolt；Adjacent blade segment is connected by connection steelframe, and connection steelframe is connected with blade sections by T-bolt；The shear web is connected by web connecting plate with bolt assembly；The connecting portion of blade sections and blade sections is provided with groove, and prefabricated covering is bonded in the groove of two neighboring blade sections connecting portion.
Compared with prior art, large scale wind power machine subsection blade connection method of the present invention has following advantageous effects：1. the subsection blade connection method of the present invention can realize that the manufacture of large scale wind power machine blade sections, fragmented transport and segmentation connection are installed, the quality risk for integrally manufacturing and bringing is efficiently avoid, while can also substantially reduce transport of blades difficulty and cost；2. the subsection blade connection method of the present invention can be used for previous short blade, progress blade tip section is changed under conditions of structural strength permission, length of blade increase is allowed to, so as to greatly improve the annual electricity generating capacity of blade；3. the subsection blade connection method of the present invention can be used for locally occurring in vane manufacturing or running replacing defective section blade during major quality defect, so as to reduce the wasting of resources, blade production cost is saved.
Brief description of the drawings
Fig. 1 is medium-and-large-sized sectional blade of wind turbine connection total figure of the invention.
Fig. 2 is medium-and-large-sized sectional blade of wind turbine connection steel frame construction schematic diagram of the invention.
Fig. 3 is the blade sections and connection component of medium-and-large-sized sectional blade of wind turbine of the invention（Wherein connection component includes intersecting nut bore, axial bolts, web connecting plate, bolt assembly；Prefabricated covering and blade sections bonding are fixedly connected by structure glue and screw, after after structure adhesive curing）Schematic diagram.
Fig. 4 is the segmentation connection diagram of medium-and-large-sized sectional blade of wind turbine of the invention.
In figure:1st, blade, 2, steelframe it is anterior, 3, in the middle part of steelframe, 4, steelframe rear portion, 5, blade sections, 6, intersect nut bore, 7, axial bolts, 8, web connecting plate, 9, bolt assembly, 10, prefabricated covering, 11, blade web.
Embodiment
Fig. 1 be refer to Fig. 4, a kind of large scale wind power machine subsection blade 1 can be divided into two sections or multistage, that is, be divided into two or more blade sections 5.Using the different T-bolt of length, intermediate connector between each section（Connection steelframe and web connecting plate 8 including special construction, wherein connection steelframe includes steelframe front portion 2, steelframe middle part 3, steelframe rear portion 4）, bolt assembly 9 and prefabricated covering 10 be combined and be connected as integral blade.Whole blade connection can be divided into the connection of aerofoil transition agent structure, web connection and the connection of prefabricated covering repairing type.The connection of aerofoil transition section must ensure the reliability of connection opening up to carrying out glass fiber reinforcement processing with profile thickness direction and keeping the thickness value of design.Simultaneously in the circumferentially double intersection nut bore 6 that is equally spaced of connecting portion aerofoil profile, and in exhibition to being connected by axial bolts 7, the assembling for intersecting radial direction nut and connecting bolt, connecting bolt length is different.Web connection mainly realizes must have enough bolts to ensure web by web connecting plate and bolt assembly（Blade web 11）It is connected firmly.Prefabricated covering connection is using restricting 5mm stressed-skin construction in advance and being connected on connection steelframe between changeover portion different airfoil profiles, so as to realize smoothly transitting for subsection blade connecting portion.The size shape construction of each blade sections is incomplete same, it is defined so that a complete large scale wind power machine subsection blade can be constituted, the connecting portion of the shape designs of other parts such as corresponding T-bolt, connection steelframe, web connecting plate, bolt assembly and prefabricated covering also with the two neighboring blade sections in place is engaged.
Large scale wind power machine subsection blade Connection Step is as follows：
1st, the web connecting plate on intermediate connector is connected with web first, fixed with bolt；
2nd, intermediate connector is connected with vane end faces with bolt, fixed with bolt；
3rd, prefabricated covering is adhered on intermediate connector, after after covering bonding solidification, abundant polishing covering, blade linkage section adjacent regions, then polishing position is cleaned out, covering and blade bonding are fixedly connected with structure glue and screw, after after structure adhesive curing, polishing bonding site surface, cleaning polishing position, blade coating putty, paint make blade surface no color differnece.
In the present invention, each blade sections is formed by composite structure.It is circumferential and open up to increase multilayer glass-fiber-fabric and carry out structural strengthening along aerofoil profile in each section of connecting portion, after perfusion solidification exhibition into certain area as uniform thickness glass fibre reinforced plastic structure, and in aerofoil profile circumferentially double intersection nut bore.It is used to be connected with T-bolt with intersecting the one-to-one axial hole of nut bore in the distribution of connecting portion end face simultaneously.Position connection fastening will be segmented by connecting steelframe by profile-followed special construction, and connection is then strengthened in shear web position using web connecting plate and bolt assembly.Finally prefabricated stressed-skin construction is bonded in the groove between two sections and carries out reinforcement, repairing type, spraying etc. and completes whole blade connection work.Each connecting portion section thickness is uniform and along the double intersection nut bore of the circumferential equidistantly distributed of aerofoil profile, it is required that its installation intersection nut rear blade surface transition is smooth, nothing is substantially concavo-convex, ensure that blade aerodynamic efficiency can't be influenceed by connecting changeover portion by techniques such as repairing types.The exhibition of segmentation position interlocks to T-bolt length, is closely evenly distributed on aerofoil profile circumference, increases T-bolt quantity, firm connection segment blade sections.Special connection steel frame construction three parts before, during and after are constituted.The flatness and perpendicularity of steelframe both sides end face must be ensured before installing, length different T-bolt in connecting portion both sides can firmly be connected by special connection steel frame construction, and moment values are given by design requirement.Simultaneously require three part steelframe profiles need to about 5mm lower than blade connecting portion surface, for follow-up covering covering after can be smoothly transitted between each section.Front and rear edges, which disconnect web, to be in reinforcement connection by special web connecting plate and bolt assembly.Prefabricated stressed-skin construction is fastened with being connected steelframe by screw, and is being combined in the gap of side using weather resistant sealing material progress encapsulation process.
Subsection blade connection is using equidistantly interlocking, the different T-bolt structure of extension elongation is attached, this connected mode is simple in construction, uniform force, safe and reliable, the stress dangerous position that is effectively shielded between bolt hole simultaneously can increase the quantity of connecting bolt, improve the reliability of integrated connection.Subsection blade connection is attached the connection space for effectively reducing changeover portion using the different bolt of extension elongation and special steel frame construction, to greatest extent influence of the control connection changeover portion profile to blade aerodynamic performance.Web connected mode not only to disconnect web（Shear web）Between connect and strengthened, and the shear stress that can bear web is converted to the tension of bolt group.The transition energy of this connected mode effectively strengthens the service life of bolt group.Connecting sewing between prefabricated covering and the linkage section of both sides is sealed using weather resistant sealing material, so as to be prevented effectively from dust storm in nature, rainwater into the bolted safety and reliability of blade shell internal influence.
The present invention is a kind of large scale wind power machine blade sections Novel connecting method.This pneumatic equipment blades can be formed by connecting by two sections or multistage glass fibre reinforced plastic structure.Intersect nut bore along the circumferentially distributed double radial direction of aerofoil profile in each blade sections connecting portion, and be axially dispersed with axial bolts hole, and closely connected each section by the connection steelframe of special construction.Meanwhile, each forward and backward shear web is firmly connected it by junction steel plate and bolt group.Finally, prefabricated stressed-skin construction is bonded in by segmentation by processing steps such as polishing, cleaning, bonding, reinforcement, repairing type and sprayings（Blade sections）Junction, so that each blade sections be connected as one.The present invention can efficiently solve the problem of linear leaf transport is difficult, cost is high on the premise of blade aerodynamic efficiency is not influenceed, and feasible program is provided while also being changed for short blade extension, each blade sections.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for those skilled in the art, the present invention there can be various modifications and variations.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., are all contained within protection scope of the present invention.
Claims (10)
1. a kind of large scale wind power machine subsection blade connection method, the large scale wind power machine subsection blade includes connecting the two or more blade sections for forming large scale wind power machine subsection blade, it is characterised in that：In blade sections aerofoil profile circumferentially double intersection nut bore；In the distribution of blade sections connecting portion end face with intersecting the one-to-one axial bolts hole of nut bore；Blade sections are fastenedly connected by bolt, connection steelframe；Prefabricated covering is bonded in blade sections junction.
2. large scale wind power machine subsection blade connection method according to claim 1, it is characterized in that, circumferentially and opened up in blade sections connecting portion along aerofoil profile to increase multilayer glass-fiber-fabric progress structural strengthening, perfusion forms uniform thickness glass fibre reinforced plastic structure into presumptive area after solidifying in exhibition.
3. large scale wind power machine subsection blade connection method according to claim 1, it is characterized in that, shape, the structure of the connection steelframe are engaged with blade sections junction；Each blade sections are formed by composite.
4. large scale wind power machine subsection blade connection method according to claim 1, it is characterized in that, the connecting portion outer surface of two neighboring blade sections is provided with groove；When being bonded prefabricated covering, prefabricated covering is bonded in the groove of two neighboring blade sections connecting portion by polishing, cleaning, bonding, reinforcement, repairing type and spraying coating process step.
5. large scale wind power machine subsection blade connection method according to claim 1, it is characterized in that, each blade sections connecting portion sectional uniform and along the double intersection nut bore of the circumferential equidistantly distributed of aerofoil profile makes installation intersect nut rear blade surface transition smooth by processing.
6. large scale wind power machine subsection blade connection method according to claim 1, it is characterized in that, blade sections connecting portion exhibition to T-bolt length is interlocked, is closely uniformly distributed；It is circumferential in aerofoil profile, firmly connect blade sections with T-bolt.
7. large scale wind power machine subsection blade connection method according to claim 1, it is characterized in that, the connection steelframe includes anterior steelframe, steelframe middle part, steelframe rear portion；Connection steelframe both sides end face is set to keep smooth and make connection steelframe both sides end face and horizontal plane before installation, the T-bolt that the structure of connection steelframe is different from two neighboring blade sections connecting portion both sides length is engaged, so as to which two neighboring blade sections firmly be connected, and moment values are given by design requirement by T-bolt, connection steelframe；The connection steelframe profile outer surface is than the low 5mm in blade sections connecting portion outer surface, for that can be smoothly transitted between each blade sections after follow-up prefabricated covering covering.
8. large scale wind power machine subsection blade connection method according to claim 1, it is characterized in that, it is in reinforcement connection in shear web connecting portion with web connecting plate and bolt assembly；Web connecting plate is arranged on the both sides of connection steelframe；Web connecting plate and connection steelframe formation intermediate connector；Prefabricated covering is fastenedly connected with being connected steelframe by screw, and in prefabricated covering with carrying out encapsulation process using weather resistant sealing material in the gap of blade body combination side.
9. large scale wind power machine subsection blade connection method according to claim 1, it is characterized in that, large scale wind power machine subsection blade Connection Step includes：
The step of web is connected；
The step of aerofoil transition agent structure is connected；
The step of prefabricated covering repairing type is connected；
Web connecting plate is connected with the shear web of blade sections, fixed with bolt assembly；Intermediate connector is connected with blade sections end face with bolt and nut, fixed with bolt；Prefabricated prefabricated covering is adhered on intermediate connector, after after the bonding solidification of prefabricated covering, fully polish prefabricated covering, blade adjacent regions, then polishing position is cleaned out, prefabricated covering and blade bonding are fixedly connected with structure glue and screw, after after structure adhesive curing, polishing bonding site surface, cleaning polishing position, blade coating putty, paint make blade surface no color differnece.
10. a kind of large scale wind power machine subsection blade, including the two or more blade sections for forming large scale wind power machine subsection blade can be connected, the blade includes blade web, and blade sections include shear web, and blade web is formed by connecting by the shear web of each blade sections；It is characterized in that, in addition to intermediate connector, prefabricated covering；Intermediate connector includes connection steelframe and is connected to the web connecting plate on connection steelframe both sides；Blade sections connecting portion intersects nut bore along the circumferentially distributed double radial direction of aerofoil profile, is distributed with blade sections connecting portion end face with intersecting the one-to-one axial bolts hole of nut bore, for being connected with T-bolt；Adjacent blade segment is connected by connection steelframe, and connection steelframe is connected with blade sections by T-bolt；The shear web is connected by web connecting plate with bolt assembly；The connecting portion of blade sections and blade sections is provided with groove, and prefabricated covering is bonded in the groove of two neighboring blade sections connecting portion.
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| CN201610053950.XA CN107013408A (en) | 2016-01-27 | 2016-01-27 | A kind of large scale wind power machine subsection blade and attaching method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653528A (en) * | 2019-01-03 | 2019-04-19 | 安徽电信规划设计有限责任公司 | A kind of bracing means for being reinforced to the steel member in communication tower |
| CN113137346A (en) * | 2021-05-08 | 2021-07-20 | 上海电气风电集团股份有限公司 | Sectional type fan blade and assembling method thereof |
| WO2021156533A1 (en) | 2020-02-05 | 2021-08-12 | M. Torres Diseños Industriales, S.A.U. | Process for the manufacture of a wind turbine generator blade and wind turbine generator blade obtained thereby |
| CN114894431A (en) * | 2022-04-27 | 2022-08-12 | 上海电气风电集团股份有限公司 | Wind turbine airfoil wind tunnel experimental model and preparation method thereof |
| CN117261280A (en) * | 2023-11-23 | 2023-12-22 | 新创碳谷集团有限公司 | Bolt connection modular blade prefabrication process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063437A (en) * | 2006-04-30 | 2007-10-31 | 通用电气公司 | Rotor blade for a wind turbine |
| CN101463793A (en) * | 2007-12-21 | 2009-06-24 | 广东明阳风电技术有限公司 | Blade root T type bolting structure of wind generator set blade |
| US20140356176A1 (en) * | 2013-05-31 | 2014-12-04 | General Electric Company | Rotor blade assembly having a stiffening root insert |
| CN104373302A (en) * | 2014-11-18 | 2015-02-25 | 株洲时代新材料科技股份有限公司 | Large wind turbine segmented blade and assembly and connection method thereof |
| CN104564541A (en) * | 2015-01-20 | 2015-04-29 | 株洲时代新材料科技股份有限公司 | Connecting structure in root of lengthened wind power blade and mounting method of lengthened wind power blade |
-
2016
- 2016-01-27 CN CN201610053950.XA patent/CN107013408A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063437A (en) * | 2006-04-30 | 2007-10-31 | 通用电气公司 | Rotor blade for a wind turbine |
| CN101463793A (en) * | 2007-12-21 | 2009-06-24 | 广东明阳风电技术有限公司 | Blade root T type bolting structure of wind generator set blade |
| US20140356176A1 (en) * | 2013-05-31 | 2014-12-04 | General Electric Company | Rotor blade assembly having a stiffening root insert |
| CN104373302A (en) * | 2014-11-18 | 2015-02-25 | 株洲时代新材料科技股份有限公司 | Large wind turbine segmented blade and assembly and connection method thereof |
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Application publication date: 20170804 |