CN113685309B - Modularized wind power blade - Google Patents
Modularized wind power blade Download PDFInfo
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- CN113685309B CN113685309B CN202111138457.5A CN202111138457A CN113685309B CN 113685309 B CN113685309 B CN 113685309B CN 202111138457 A CN202111138457 A CN 202111138457A CN 113685309 B CN113685309 B CN 113685309B
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- 238000000034 method Methods 0.000 claims abstract description 32
- 230000008569 process Effects 0.000 claims abstract description 27
- 238000009755 vacuum infusion Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000004513 sizing Methods 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 7
- 238000012805 post-processing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000004381 surface treatment Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 11
- 238000012545 processing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000001721 transfer moulding Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
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- 230000011218 segmentation Effects 0.000 description 1
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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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- 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
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- 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 relates to the technical field of wind power blades, in particular to a modularized wind power blade and an assembling method thereof, wherein the wind power blade comprises the following components: the blade comprises a blade body, a main beam module and a rear edge beam module, wherein the blade body is provided with a suction surface, a pressure surface, a blade root end and a blade tip end, the wind power blade comprises a blade front edge and a blade rear edge, wherein a blade body is divided into a blade root module, a blade leaf module and a blade tip module along the length direction of the blade, a first groove and a second groove which extend along the length direction of the blade are formed in the outer surface of the blade root module, the outer surface of the blade leaf module and the outer surface of the blade tip module together, the first groove is located in a main beam area of a suction surface and a pressure surface, the main beam module is installed in the first groove through a bonding or vacuum infusion process, the second groove is located at the rear edge of the blade and located at the butt joint of the suction surface and the pressure surface, and the rear edge beam module is installed in the second groove through the bonding or vacuum infusion process.
Description
Technical Field
The invention relates to the technical field of wind power blades, in particular to a modularized wind power blade.
Background
The blades of the wind generating set are usually integral glass fiber reinforced plastic blades, and meanwhile, combined blades in different forms also exist at home and abroad, and most of the blades are based on a main beam structure, a shell is split according to different sizes, and then the shell is assembled on the main beam in a bonding or mechanical connection mode.
With the rise of megawatt level of the generator set, excellent resources are gradually developed, and at present, a wind power plant is expanded from a plain land to a hilly land and from a land to an ocean, so that the size of blades is more and more huge, and the weight of the blades is continuously improved.
The condition leads to the continuous improvement of the manufacturing condition of the integral blade, and the manufacturing difficulty and the cost of the die and the equipment are higher and higher; the traditional combined blade is difficult to manufacture and assemble, the occupation of field equipment is not different from that of an integral blade, and the cost is higher, so the blade is not accepted by the market.
In view of the above problems, the designer actively makes research and innovation based on the practical experience and professional knowledge that such product engineering application is rich for many years, so as to create a modularized wind power blade, which is more practical.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a modularization wind-powered electricity generation blade, the distributed and automated production of being convenient for is applicable to and assembles under small-size place and the simple and crude environment.
In order to achieve the purpose, the invention adopts the technical scheme that: a modular wind blade comprising: the blade comprises a blade body, a main beam module and a rear edge beam module, wherein the blade body is provided with a suction surface, a pressure surface, a blade root end, a blade tip end, a blade front edge and a blade rear edge, the blade body is divided into a blade root module, a blade root module and a blade tip module along the length direction of the blade, a first groove and a second groove which extend along the length direction of the blade are jointly formed in the outer surface of the blade root module, the outer surface of the blade root module and the outer surface of the blade tip module, the first groove is located in the main beam area of the suction surface and the pressure surface, the main beam module is installed in the first groove through a bonding or vacuum infusion process, the second groove is located in the blade rear edge and located at the butt joint of the suction surface and the pressure surface, and the rear edge beam is installed in the second groove through a bonding or vacuum infusion process.
Furthermore, the module in the leaf is of a split structure and comprises a front edge molecule module and a rear edge molecule module, wherein the front edge molecule module and the rear edge molecule module are respectively composed of a first skin, a first web plate, a main beam bonding flange, a blade root connecting flange and an axial bonding flange, the main beam bonding flange on the front edge molecule module is overlapped and butted with the main beam bonding flange on the rear edge molecule module, and the main beam bonding flange are assembled and fixed in a bonding and mechanical connection mode or a combination mode of the main beam bonding flange and the main beam bonding flange.
Furthermore, the blade root module is of a hollow shell structure and comprises a second skin used for forming and a second web plate in the shell, a blade leaf connecting flange is arranged at the connecting end of the blade root module and the blade leaf module, a punching structure is arranged at the other end of the blade root module, and the punching structure is used for being connected with a blade power shaft.
Further, the blade tip module is of a hollow shell structure and comprises a third skin for forming the shell and a third web inside the shell.
An assembly method of a modular wind turbine blade, comprising the steps of:
assembling and forming a module in the leaf: the front edge molecular module and the rear edge molecular module are separately manufactured and molded and are assembled by adopting a bonding process;
the module in the leaf is butted with the blade tip module: the blade tip module is manufactured and molded independently, and the blade tip module and the blade leaf module are assembled by adopting a bonding process;
the module in the leaf is butted with the module in the root: the blade root connecting flange of the blade root module is connected with the blade root connecting flange of the blade root module in a bolt retracting mode;
assembling the main beam module and the rear edge beam module: and after the blade root module, the blade leaf module and the blade tip module are assembled, the main beam module and the rear edge beam module are assembled by adopting a bonding or vacuum pouring process.
Further, the module assembling and forming in the leaves comprises the following specific steps:
aligning the spar bond flanges on the leading edge molecular module and the trailing edge molecular module;
sizing the main beam bonding flange;
pressurizing the front edge molecular module and the rear edge molecular module to enable the main beam bonding flange to be tightly attached;
aligning the axial bonding flanges on the leading edge molecular module and the trailing edge molecular module;
sizing the axial bonding flange;
axially pressurizing the leading edge molecular module and the trailing edge molecular module;
heating and curing;
and (5) post-processing at the interface.
Further, the butt joint of the in-leaf module and the blade tip module comprises the following specific steps;
aligning interfaces of the in-leaf module and the tip module;
sizing the axial bonding flange on the in-flight module;
axially pressurizing the in-leaf module and the tip module;
heating and curing;
and (5) post-processing at the interface.
Further, the specific steps of assembling the girder module and the trailing edge girder module by adopting a bonding process are as follows:
applying a structural adhesive within the first recess and the second recess;
fixing the main beam module and the rear edge beam module;
pressurizing the main beam module and the trailing edge beam module;
heating and curing;
and (5) surface post-treatment.
Further, the main beam module and the rear edge beam module are assembled by adopting a vacuum pouring process, and the method comprises the following specific steps:
paving a flow guide fabric in the first groove and the second groove;
placing the main girder module into the first groove, and placing the rear edge girder module into the second groove;
distributing a vacuum system on the surfaces of the main beam module and the rear edge beam module;
vacuumizing and maintaining pressure;
pouring and curing;
cleaning vacuum auxiliary materials and performing surface treatment.
The invention has the beneficial effects that:
1. the blade root module, the blade leaf module, the blade tip module, the main girder module and the rear edge girder module are all manufactured in a modularized mode, the manufacturing can be completed by miniaturizing a production field and equipment, the field construction under the crude condition can be realized, the transportation cost is low, and the transportation difficulty is greatly reduced;
2. the main beam module and the rear edge beam module in the invention adopt the bonding or vacuum filling process to strengthen the connection strength of the blade root module, the blade leaf module and the blade tip module, and the connection failure risk is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is also possible for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a modular wind turbine blade according to an embodiment of the present invention;
FIG. 2 is an exploded view of a modular wind blade according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a module in a leaf in an embodiment of the present invention;
FIG. 4 is an enlarged view of the position A in the embodiment of the present invention;
FIG. 5 is an enlarged view of the position B in the embodiment of the present invention;
FIG. 6 is a schematic view of a blade root module according to an embodiment of the present invention;
FIG. 7 is a schematic view of another angular configuration of a root module in accordance with an embodiment of the present invention;
FIG. 8 is a schematic view of a blade tip module according to an embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a trailing edge beam module in an embodiment of the present invention.
Reference numerals: 1. a blade root module; 2. a trailing edge beam module; 3. a main beam module; 4. a module in leaves; 5. a blade tip module; 6. a suction surface; 7. pressure surface (not shown) 0; 8. a blade leading edge; 9. a blade trailing edge; 10. a first groove; 11. a second groove; 12. a first skin; 13. a first web; 14. a main beam bonding flange; 15. a blade root connecting flange; 16. an axial bonding flange; 17. a second skin; 18. a second web; 19. a leaf connecting flange; 20. a third skin; 21. a third web.
Detailed Description
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.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The modular wind blade as shown in fig. 1 to 2, comprising: a blade body, a girder module 3 and a trailing edge beam module 2, the blade body is provided with a suction surface 6, a pressure surface 7 (not marked in the figure, the surface opposite to the suction surface 6 is the pressure surface 7), a blade root end and a blade tip end, blade leading edge 8 and blade trailing edge 9, the blade body is blade root module 1 along the segmentation of blade length direction, module 4 and apex module 5 in the leaf, blade root module 1 surface, first recess 10 and second recess 11 along the extension of blade length direction are seted up jointly to module 4 surface and apex module 5 surface in the leaf, first recess 10 is located the girder region of suction surface 6 and pressure surface 7, girder module 3 is installed in first recess 10 through the technology of bonding or vacuum infusion, second recess 11 is located blade trailing edge 9, and be located the butt joint department of suction surface 6 and pressure surface 7, trailing edge roof beam module 2 is installed in second recess 11 through the technology of bonding or vacuum infusion.
The blade body is divided into three modules for respective processing, the three modules comprise a blade root module 1 close to a blade root end, a blade tip module 5 close to a blade tip end and a blade leaf module 4 formed by the rest of middle parts, the three modules are all independently processed, the main material adopted is epoxy glass fiber composite material or carbon fiber composite material, the processing mode can adopt a die forming process, the blade body is split into the three modules for split processing, the automatic production of a single module is met, for example, the blade tip module is simple to construct, the rapid processing can be completed by directly adopting the die forming, the production efficiency is improved, the adopted die is more miniaturized, the blade is suitable for manufacturing small-sized processing fields, the connection mode of the three modules is simpler and more practical, and the stable installation can be completed by adopting the conventional bonding or mechanical connection, meanwhile, the main beam module 3 and the rear edge beam module 2 are adopted to further strengthen the connection between the three modules, the main beam module 3 and the rear edge beam module 2 can be assembled by adopting a bonding or vacuum pouring process, the assembly difficulty is also reduced, a simple and crude place can be built near a wind power generation field to complete the assembly, the assembly difficulty is reduced, and the technical problem of high transportation difficulty of integral fan blades is solved.
As shown in fig. 3-5, since the module 4 in the lobe is relatively large in size and more complex in structure and shape, the module 4 in the lobe is designed into a split structure including a leading edge module and a trailing edge module, both the leading edge module and the trailing edge module are composed of a first skin 12, a first web 13, a main beam bonding flange 14, a blade root connecting flange 15 and an axial bonding flange 16, the main beam bonding flange 14 on the leading edge module and the main beam bonding flange 14 on the trailing edge module are overlapped and butted, and are assembled and fixed in a manner of bonding or combining with either or both of bonding and mechanical connection.
The shell contour of the front edge molecular module and the shell contour of the rear edge molecular module are not consistent, so that the front edge molecular module and the rear edge molecular module are separately prepared and then assembled, the processing difficulty can be further reduced, wherein the shell contour of the front edge molecular module tends to be semicircular, the rear edge molecular module tends to be triangular due to the rear edge section, the front edge molecular module and the rear edge molecular module are separately processed, the processing process is easy to control, in order to ensure the product quality and the performance of the front edge molecular module and the rear edge molecular module, the resin transfer molding or vacuum auxiliary forming process can be adopted for closed mold manufacturing, and finally, the assembly and the fixation are carried out in a mode of any one or combination of bonding and mechanical connection.
As shown in fig. 6-7, more specifically, the blade root module 1 is a hollow shell structure, and includes a second skin 17 for molding and a second web 18 in the shell, the blade root module 1 is provided with a blade leaf connecting flange 19 at the end connected with the blade leaf module 4, and the other end is provided with a punching structure for connecting with the blade power shaft, the blade leaf connecting flange 19 can be integrally molded with the second skin 17 in a pre-buried manner, and the connection strength is high.
As shown in fig. 8, the blade tip module 5 is a hollow shell structure, and includes a third skin 20 for forming the shell and a third web 21 in the shell, the blade tip portion of the wind turbine blade is used as a component for bearing the main aerodynamic performance of the blade, especially the front edge portion, and has a high requirement on the size of the profile, and meanwhile, because the blade tip module 5 has a light weight and a relatively small size, the vacuum infusion and bonding process is used to have a great advantage in cost, and is relatively easy to transport, so the blade tip module is manufactured by the vacuum infusion and bonding process,
As shown in fig. 9, the trailing edge beam module 2 is integrated with the mold-closing seam between the suction surface and the pressure surface as the center, so that the trailing edge beam module 2 includes two molding surfaces for respectively fitting the suction surface and the pressure surface, and in order to ensure the precision in assembling, the molding surface constraint needs to be performed by a mold, and the process can adopt a vacuum auxiliary molding process.
As shown in fig. 2, the girder modules 3 have relatively stable external dimensions, are long-strip-shaped as a whole, have no curved surface, are easy to process, can be manufactured by using pultrusion materials, and can also be manufactured by using conventional fabrics and adopting a resin transfer molding or vacuum auxiliary molding process for closed mold manufacturing.
Alternative embodiment
An assembly method of a modular wind turbine blade, comprising the steps of:
assembling and forming the middle leaf module 4: the front edge molecular module and the rear edge molecular module are separately manufactured and molded and are assembled by adopting a bonding process;
the in-leaf module 4 is butted with the blade tip module 5: the blade tip module 5 is manufactured and molded separately, and the in-leaf module 4 and the blade tip module 5 are assembled by adopting a bonding process;
the leaf blade module 4 is butted with the root blade module 1: the blade root connecting flange 15 of the blade root module 4 is connected with the blade root connecting flange 19 of the blade root module 1 in a bolt retraction mode;
assembling the girder modules 3 and the trailing edge girder modules 2: after the blade root module 1, the blade leaf module 4 and the blade tip module 5 are assembled, the main beam module 3 and the rear edge beam module 2 are assembled by adopting a bonding or vacuum pouring process.
The assembly mode adopted in the invention mainly adopts a bonding mode, a bolt connection mode or a vacuum filling mode, the whole assembly operation is simple and easy, the connection strength is high, the assembly can be completed under simple and crude conditions, the assembly requirement is low, the connection stability is good, the force transmission effect is good, and the wind power generation device is widely suitable for the northwest, southwest and other wind power generation places. It is important to point out that the blade root connecting flange 15 of the in-blade module 4 and the in-blade connecting flange 19 of the blade root module 1 in the invention are connected in a bolt retraction manner, and it can be seen from the figure that the blade root connecting flange 15 and the in-blade connecting flange 19 are both positioned in the blade cavity, i.e. inside the shell, and this way, the length of the connecting mechanism in the circumferential direction of the blade is reduced, the installation cost and time are reduced, and the operation is simple.
Specifically, the assembly and molding steps of the module 4 in the leaf are as follows:
aligning the spar bond flanges 14 on the leading edge and trailing edge molecular modules;
gluing the main beam bonding flange 14;
pressurizing the front edge molecular module and the rear edge molecular module to enable the girder bonding flange 14 to be tightly attached;
aligning the axial bonding flanges 16 on the leading edge molecular module and the trailing edge molecular module;
sizing the axial bonding flange 16;
axially pressurizing the leading edge molecular module and the trailing edge molecular module;
heating and curing;
and (4) post-processing at the interface, mainly processing burrs.
Specifically, the butt joint of the in-leaf module 4 and the blade tip module 5 comprises the following specific steps;
aligning interfaces of the in-leaf module 4 and the blade tip module 5;
sizing the axial bonding flange 16 on the module 4 in the blade;
axially pressurizing the in-blade module 4 and the blade tip module 5;
heating and curing;
and (5) post-processing at the interface.
Specifically, the main beam module 3 and the rear edge beam module 2 are assembled in a bonding manner by the following specific steps:
applying a structural adhesive in the first recess 10 and the second recess 11;
fixing the main girder module 3 and the rear edge girder module 2;
pressurizing the main girder module 3 and the rear edge girder module 2;
heating and curing;
and (5) surface post-treatment.
Specifically, the specific steps of assembling the main beam module 3 and the rear edge beam module 2 in a vacuum introduction manner are as follows:
laying a guide fabric in the first groove 10 and the second groove 11;
putting the main girder module 3 into the first groove 10, and putting the rear edge girder module 2 into the second groove 11;
distributing a vacuum system on the surfaces of the main beam module 3 and the rear edge beam module 2;
vacuumizing and maintaining pressure;
pouring and curing;
cleaning vacuum auxiliary materials, performing surface treatment, and treating redundant burrs.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A modular wind blade, comprising: a blade body, a main beam module and a trailing edge beam module, wherein the blade body is provided with a suction surface, a pressure surface, a blade root end, a blade tip end, a blade leading edge and a blade trailing edge, the blade body is divided into a blade root module, a blade leaf module and a blade tip module along the length direction of the blade, the outer surface of the blade root module, the outer surface of the blade leaf module and the outer surface of the blade tip module are provided with a first groove and a second groove which extend along the length direction of the blade, the first groove is positioned in a main beam area of the suction surface and the pressure surface, the main beam module is installed in the first groove through a bonding or vacuum infusion process, the second groove is positioned at the trailing edge of the blade and at the joint of the suction surface and the pressure surface, the trailing edge beam module is installed in the second groove through a bonding or vacuum infusion process;
the lobe module is of a split structure and comprises a front edge molecular module and a rear edge molecular module, wherein the front edge molecular module and the rear edge molecular module are respectively composed of a first skin, a first web plate, a main beam bonding flange, a blade root connecting flange and an axial bonding flange, the main beam bonding flange on the front edge molecular module is overlapped and butted with the main beam bonding flange on the rear edge molecular module, and the main beam bonding flange are assembled and fixed in a bonding and mechanical connection mode or a combination mode of the main beam bonding flange and the main beam bonding flange;
the blade root module is of a hollow shell structure and comprises a second skin for molding and a second web plate in the shell, a blade leaf connecting flange is arranged at the connecting end of the blade root module and the blade leaf module, a punching structure is arranged at the other end of the blade root module, and the punching structure is used for being connected with a blade power shaft;
the blade tip module is of a hollow shell structure and comprises a third skin for forming a shell and a third web plate in the shell;
the assembling method of the modularized wind power blade comprises the following steps:
assembling and forming a module in the leaf: the front edge molecular module and the rear edge molecular module are separately manufactured and molded and are assembled by adopting a bonding process;
the module in the leaf is butted with the blade tip module: the blade tip module is manufactured and molded independently, and the in-leaf module and the blade tip module are assembled by adopting a bonding process;
the module in the leaf is butted with the module in the root: the blade root connecting flange of the blade root module is connected with the blade root connecting flange of the blade root module in a bolt retracting mode;
assembling the main beam module and the rear edge beam module: and after the blade root module, the blade leaf module and the blade tip module are assembled, the main beam module and the rear edge beam module are assembled by adopting a bonding or vacuum pouring process.
2. The modular wind blade of claim 1 wherein the module assembly in the blade comprises the following specific steps:
aligning the spar bond flanges on the leading edge molecular module and the trailing edge molecular module;
sizing the main beam bonding flange;
pressurizing the front edge molecular module and the rear edge molecular module to enable the main beam bonding flange to be tightly attached;
aligning the axial bonding flanges on the leading edge molecular modules and the trailing edge molecular modules;
sizing the axial bonding flange;
axially pressurizing the leading edge molecular module and the trailing edge molecular module;
heating and curing;
and (5) post-processing at the interface.
3. The modular wind blade of claim 1 wherein the in-leaf module and the tip module are butt-jointed by the following specific steps;
aligning interfaces of the in-leaf module and the tip module;
sizing the axial bonding flange on the in-flight module;
axially pressurizing the in-leaf module and the tip module;
heating and curing;
and (5) post-processing at the interface.
4. The modular wind blade of claim 1 wherein the assembly of the main beam modules and the trailing edge beam modules by bonding comprises the following steps:
applying a structural adhesive in the first recess and the second recess;
fixing the main beam module and the rear edge beam module;
pressurizing the main girder module and the trailing edge girder module;
heating and curing;
and (5) surface post-treatment.
5. The modular wind blade of claim 1 wherein the steps of assembling the main beam module and the trailing edge beam module by vacuum infusion are as follows:
paving a flow guide fabric in the first groove and the second groove;
placing the main girder module into the first groove, and placing the rear edge girder module into the second groove;
distributing a vacuum system on the surfaces of the main beam module and the rear edge beam module;
vacuumizing and maintaining pressure;
pouring and curing;
cleaning vacuum auxiliary materials and performing surface treatment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111138457.5A CN113685309B (en) | 2021-09-27 | 2021-09-27 | Modularized wind power blade |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111138457.5A CN113685309B (en) | 2021-09-27 | 2021-09-27 | Modularized wind power blade |
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| CN113685309A CN113685309A (en) | 2021-11-23 |
| CN113685309B true CN113685309B (en) | 2022-08-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP4338938A1 (en) | 2022-05-09 | 2024-03-20 | Newtech Group Co., Ltd. | Modular blade connection structure, method, and tooling |
| CN114851581B (en) * | 2022-05-09 | 2022-11-25 | 新创碳谷集团有限公司 | Modular blade connecting structure, method and tool |
| CN115306807B (en) * | 2022-08-12 | 2023-09-05 | 新创碳谷集团有限公司 | Modular blade middle section assembling tool and process |
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Effective date of registration: 20221025 Address after: 213127 No. 329, Huanghai Road, Xinbei District, Changzhou City, Jiangsu Province Patentee after: Xinchuang Carbon Valley Group Co.,Ltd. Address before: 213135, No. 28, Lijiang Road, textile industry garden, Xixia Town villa, Xinbei District, Jiangsu, Changzhou Patentee before: CHANGZHOU HONGFA ZONGHENG ADVANCED MATERIAL TECHNOLOGY Co.,Ltd. |