CN111779624A - Wind power blade capable of effectively resisting high-altitude corrosion type airflow and manufacturing method thereof - Google Patents
Wind power blade capable of effectively resisting high-altitude corrosion type airflow and manufacturing method thereof Download PDFInfo
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- CN111779624A CN111779624A CN202010677626.1A CN202010677626A CN111779624A CN 111779624 A CN111779624 A CN 111779624A CN 202010677626 A CN202010677626 A CN 202010677626A CN 111779624 A CN111779624 A CN 111779624A
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- 238000005260 corrosion Methods 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 230000007797 corrosion Effects 0.000 title abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 78
- 239000011248 coating agent Substances 0.000 claims abstract description 75
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 27
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 17
- 239000011701 zinc Substances 0.000 claims abstract description 17
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 13
- 229910000734 martensite Inorganic materials 0.000 claims abstract description 10
- 229920005990 polystyrene resin Polymers 0.000 claims abstract description 9
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 239000011347 resin Substances 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 4
- 230000001680 brushing effect Effects 0.000 claims description 24
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 230000001681 protective effect Effects 0.000 claims description 19
- 239000003973 paint Substances 0.000 claims description 18
- 150000001768 cations Chemical class 0.000 claims description 17
- 238000009713 electroplating Methods 0.000 claims description 15
- 230000003628 erosive effect Effects 0.000 claims description 13
- 238000003466 welding Methods 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 11
- 230000002829 reductive effect Effects 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 239000012752 auxiliary agent Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000003085 diluting agent Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 239000000049 pigment Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000006104 solid solution Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 230000002787 reinforcement Effects 0.000 description 8
- 238000013461 design Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2230/00—Manufacture
- F05B2230/90—Coating; Surface treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2280/00—Materials; Properties thereof
- F05B2280/60—Properties or characteristics given to material by treatment or manufacturing
- F05B2280/6011—Coating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of fan blades, in particular to a wind power blade capable of effectively resisting high-altitude corrosion type airflow and a manufacturing method thereof. The fan blade comprises a fan blade and an engine room arranged on the rear side of the fan blade, wherein the coating comprises a wear-resistant coating, the wear-resistant coating is made of low-carbon martensite primed wear-resistant metal powder core wires, an anti-corrosion coating is arranged on the surface of a blade cavity, the anti-corrosion coating is a cold-coating zinc coating, a film forming substance of the cold-coating zinc coating is organic resin, the organic resin is polystyrene resin, the fan blade is combined with the wear-resistant coating through the anti-corrosion coating, the anti-corrosion coating prevents a high-altitude corrosion medium from permeating into the surface of the fan blade through the cold-coating zinc coating, the high-altitude corrosion medium cannot contact with the fan blade to damage the fan blade, and the purposes of preventing corrosion and prolonging the.
Description
Technical Field
The invention relates to the technical field of fan blades, in particular to a wind power blade capable of effectively resisting high-altitude corrosion type airflow and a manufacturing method thereof.
Background
In recent years, the wind power of emerging markets develops rapidly, and under the background of national policy support and energy supply tension, the wind power of China, particularly the manufacturing industry of wind power equipment, also rises rapidly, and becomes the most active place of wind power in the world; because wind power belongs to the category of new energy, the cost and the technology have larger difference compared with the traditional thermal power and hydropower, the rapid development of the wind power needs to be supported vigorously by national policies; the wind driven generator is an electric device which converts wind energy into mechanical work, the mechanical work drives a rotor to rotate and finally outputs alternating current, the design of fan blades in the wind driven generator directly influences the conversion efficiency of the wind energy so as to influence the annual energy production, the fan blades are an important ring for utilizing the wind energy, the common fan blades are rotated under the action of external wind force to drive a hub to rotate, the mechanical energy is converted into electric energy through a cabin and stored in a storage battery, and the cabin contains key equipment of the wind driven generator, including a gear box and a generator.
However, as the fan blade works in the high-altitude environment for a long time, the corrosive medium in the high altitude corrodes the fan blade after contacting the fan blade, the service life of the fan blade is greatly reduced, and the cost of wind power generation is further improved.
Disclosure of Invention
The invention aims to provide a wind power blade capable of effectively resisting high-altitude corrosion type airflow and a manufacturing method thereof, so as to solve the problems in the background technology.
In order to achieve the above object, one of the objects of the present invention is to provide a wind turbine blade capable of effectively resisting high-altitude erosion airflow, which includes a fan blade and a nacelle disposed behind the fan blade, wherein the nacelle includes a hub, three lower flanges are sequentially disposed around the hub at 120 ° included angles, the lower flanges are used for being connected with an upper flange, the fan blade is welded to the top of the upper flange, and the fan blade at least includes:
the blade cavity is internally provided with a supporting block at a position close to the upper flange plate, and the supporting block is designed in an I shape;
the coating comprises a wear-resistant coating, the wear-resistant coating is a wear-resistant metal powder core wire primed by low-carbon martensite, the low-carbon martensite is a supersaturated solid solution of carbon in alpha-Fe, the low-carbon martensite has high strength and good plasticity, the wear-resistant metal powder core wire is plated on the surface of a cavity of the blade in an electroplating mode, the wear-resistant metal powder core wire is used as an anode by electroplating, the fan blade is used as a cathode, cations of the wear-resistant metal powder core wire are reduced on the surface of the fan blade to form a coating, a cation solution containing the wear-resistant metal powder core wire is used as an electroplating solution to keep the concentration of the cations of the wear-resistant metal powder core wire unchanged, the surface of the cavity of the blade is provided with an anti-corrosion coating, the anti-corrosion coating is a cold-coating zinc coating, and a film forming substance of the cold-coating zinc coating is organic resin, the organic resin is polystyrene resin.
When in electroplating, the wear-resistant metal powder core wire is used as an anode, the fan blade is used as a cathode, cations of the wear-resistant metal powder core wire are reduced on the surface of the fan blade to form a coating, and meanwhile, in order to eliminate the interference of other cations and ensure that the coating is uniform and firm, a solution containing the cations of the wear-resistant metal powder core wire is used as an electroplating solution to keep the concentration of the cations of the wear-resistant metal powder core wire unchanged, so that the corrosion resistance, the hardness, the abrasion resistance and the heat resistance of the fan blade are enhanced through electroplating, and the conductivity, the smoothness, the heat resistance and the surface attractiveness are improved.
When coating is carried out, firstly, cleaning up welding seam coating, welding spatter particles and oil stains on the surface of the fan blade, then mixing polystyrene resin, anticorrosive pigment, auxiliary agent and diluent according to the proportion of 1: 2: 1, the mixed paint is stirred evenly, the paint is coated on the surface of the fan blade after being stirred evenly, the paint on the surface of the fan blade is dried after the first time of brushing, the phenomenon that the surface of the fan blade is wrinkled due to the second time of brushing before the first time of brushing is avoided, the quality of the fan blade is reduced is avoided, the paint is brushed for the second time after drying, the brushing direction is vertical to the brushing direction of the first time, therefore, the thickness of the formed cold-coated zinc coating is consistent, and high-altitude corrosive media are prevented from permeating the surface of the fan blade through the cold-coated zinc coating, so that the high-altitude corrosive media cannot contact and damage the fan blade, and the purposes of preventing corrosion and prolonging the service life of the fan blade are achieved.
As a further improvement of the technical scheme, a second connecting frame is arranged on one side of the supporting block close to the upper flange, the second connecting frame is used for being connected with a second reinforcing block, a first connecting frame is arranged on one side of the supporting block far away from the second connecting frame, and the first connecting frame is used for being connected with the first reinforcing block.
As a further improvement of the technical scheme, first protection pads are bonded on the left side and the right side of the supporting block, second protection pads are bonded on the left side and the right side of the second reinforcing block and the first reinforcing block, and the second reinforcing block and the first reinforcing block are designed in an arched shape.
As a further improvement of the technical scheme, a plurality of lower inserting holes are annularly formed around the top of the lower flange plate, upper inserting holes are formed in the position, corresponding to the lower inserting holes, of the bottom of the upper flange plate, the lower inserting holes and the upper inserting holes are used for inserting the pre-tightening bolts, and nuts are connected to the bottoms of the pre-tightening bolts in a threaded mode.
As a further improvement of the technical scheme, the pre-tightening bolt generates pre-tightening force along the axial lead direction with the lower flange plate and the upper flange plate under the action of tightening torque.
As a further improvement of the technical scheme, the diameter of the polish rod of the pre-tightening bolt is 29-30 mm.
As a further improvement of the technical scheme, a lower end gasket is arranged at the bottom of the pre-tightening bolt, and an upper end gasket is arranged at the top of the pre-tightening bolt.
As a further improvement of the technical scheme, the outer sleeve of the upper flange plate is provided with an upper protective cover, a clamping groove is formed in the periphery of the upper protective cover in an annular mode, the clamping groove is used for being matched with the buckle in a clamping mode, the bottom of the buckle is welded with a lower protective cover, and the lower protective cover is arranged outside the lower flange plate in a sleeved mode.
As a further improvement of the technical scheme, a sealing ring is bonded at the bottom of the upper protective cover.
The invention also aims to provide a method for manufacturing a wind power blade capable of effectively resisting high-altitude corrosion type airflow, which comprises the following steps:
s1, cleaning up welding seam coatings, welding spatter particles and oil stains on the surface of the fan blade;
s2, after the base surface is cleaned, mixing the polystyrene resin, the anticorrosive pigment, the auxiliary agent and the diluent according to the proportion of 1: 2: 1, and uniformly stirring the mixed coating;
s3, after the paint is uniformly stirred, brushing the paint on the surface of the fan blade;
s4, after the first brushing is finished, waiting for the paint on the surface of the fan blade to be dried;
and S5, after drying, brushing for the second time, wherein the brushing direction is vertical to the brushing direction of the first time, and after surface drying, forming a cold-coating zinc coating which prevents high-altitude corrosive media from permeating into the surface of the fan blade.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the wind power blade capable of effectively resisting high-altitude corrosion type airflow and the manufacturing method thereof, the fan blade is combined with the wear-resistant coating through the anti-corrosion coating, the anti-corrosion coating prevents high-altitude corrosion media from permeating into the surface of the fan blade through the cold-coated zinc coating, so that the high-altitude corrosion media cannot contact and damage the fan blade, the purposes of corrosion resistance and prolonging the service life of the fan blade are achieved, and the wear-resistant coating achieves the purpose of protecting the anti-corrosion coating through the wear-resistant coating on the surface.
2. According to the wind power blade capable of effectively resisting high-altitude corrosion type airflow and the manufacturing method thereof, the first connecting frame and the second connecting frame are enabled to transversely reinforce the fan blade through the supporting force of the supporting block, the blade cavity is enabled to improve the wind resistance of the internal framework while the quality of the fan blade is reduced through transverse reinforcement, and the fan blade is prevented from being broken.
3. In the wind power blade capable of effectively resisting high-altitude corrosion type airflow and the manufacturing method thereof, the pre-tightening bolt generates pre-tightening force along the axial lead direction with the lower flange plate and the upper flange plate under the action of tightening torque, and when the diameter of a polish rod of the pre-tightening bolt is 29-30mm, the comprehensive performance of static strength and fatigue strength of the pre-tightening bolt is the best, so that the reliability and the anti-loosening capacity of the connection of the pre-tightening bolt and the fatigue strength of the bolt are improved.
4. According to the wind power blade capable of effectively resisting high-altitude corrosion type airflow and the manufacturing method thereof, the protective cover, the lower protective cover and the sealing ring are combined to form a closed cavity, so that the phenomenon that the fan blade falls off due to the fact that a pretightening bolt is corroded by high-altitude corrosion media is avoided.
Drawings
FIG. 1 is a schematic view of a fan blade configuration of the present invention;
FIG. 2 is a schematic view of a nacelle configuration of the present invention;
FIG. 3 is a first schematic view of a fan blade according to the present invention;
FIG. 4 is a second schematic view of the fan blade structure of the present invention;
FIG. 5 is a schematic view of the coating structure of the present invention;
FIG. 6 is a schematic view of the support block configuration of the present invention;
FIG. 7 is a schematic view of the structure of the reinforcing block of the present invention
FIG. 8 is an exploded view of the nacelle structure of the present invention;
FIG. 9 is a schematic view of a pre-tightening bolt according to the present invention;
fig. 10 is a schematic view of the protective cover structure of the present invention.
The various reference numbers in the figures mean:
100. a fan blade;
110. a blade cavity; 111. a support block; 1111. a first protective pad; 112. a first connecting frame; 1121. a first reinforcing block; 1122. a second protective pad; 113. a second link frame; 1131. a second reinforcing block;
120. coating; 121. a wear-resistant coating; 122. an anti-corrosion coating;
200. a nacelle;
210. a hub; 211. a lower flange plate; 2111. a lower plug hole;
220. an upper flange plate; 221. an upper plug hole;
222. pre-tightening the bolts; 2221. a nut; 2222. an upper end gasket; 2223. a lower end gasket;
230. an upper protective cover; 231. a lower protective cover; 2311. buckling; 232. a card slot; 233. and (5) sealing rings.
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. 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Example 1
Referring to fig. 1 to 5, a wind turbine blade effective against high altitude erosion airflow is provided, including a wind turbine blade 100 and a nacelle 200 disposed behind the wind turbine blade 100, where the nacelle 200 includes a hub 210, three lower flanges 211 are sequentially disposed around the hub 210 at an included angle of 120 °, the lower flanges 211 are used for being connected to an upper flange 220, the wind turbine blade 100 is welded to the top of the upper flange 220, and the wind turbine blade 100 at least includes:
the fan blade comprises a blade cavity 110, wherein a supporting block 111 is arranged in the blade cavity 110 at a position close to an upper flange plate 220, and the supporting block 111 is in an I-shaped design;
the coating 120, the coating 120 includes a wear-resistant coating 121, the wear-resistant coating 121 adopts wear-resistant metal powder core wires primed by low-carbon martensite, the low-carbon martensite is supersaturated solid solution of carbon in alpha-Fe, the low-carbon martensite has higher strength and good plasticity, the wear-resistant metal powder core wire is plated on the surface of the blade cavity 110 in an electroplating mode, the wear-resistant metal powder core wire is taken as an anode by electroplating, the fan blade 100 is taken as a cathode, cations of the wear-resistant metal powder core wire are reduced on the surface of the fan blade 100 to form a plating layer, and a cation solution containing the wear-resistant metal powder core wire is taken as an electroplating solution, in order to keep the cation concentration of the wear-resistant metal powder core wire unchanged, the surface of the blade cavity 110 is provided with an anti-corrosion coating 122, the anti-corrosion coating 122 adopts a cold-coating zinc coating, the film forming substance of the cold-coating zinc coating is organic resin, and the organic resin adopts polystyrene resin.
When in electroplating, the wear-resistant metal powder core wire is used as an anode, the fan blade 100 is used as a cathode, cations of the wear-resistant metal powder core wire are reduced on the surface of the fan blade 100 to form a coating, and meanwhile, in order to eliminate the interference of other cations and ensure that the coating is uniform and firm, a solution containing the cations of the wear-resistant metal powder core wire is used as an electroplating solution to keep the concentration of the cations of the wear-resistant metal powder core wire unchanged, so that the corrosion resistance, the hardness, the abrasion resistance, the conductivity, the smoothness, the heat resistance and the surface attractiveness of the fan blade 100 are enhanced through electroplating.
When coating is carried out, firstly, cleaning up welding seam coating, welding spatter particles and oil stains on the surface of the fan blade 100, then mixing polystyrene resin, anticorrosive pigment, auxiliary agent and diluent according to the proportion of 1: 2: 1, the mixed paint is stirred uniformly, the paint is coated on the surface of the fan blade 100 after being stirred uniformly, the paint on the surface of the fan blade 100 is dried after the first brushing, the condition that the paint on the surface of the fan blade 100 is dried before the first brushing is carried out for the second time is avoided, the wrinkle is generated on the surface of the fan blade 100 to reduce the quality of the fan blade, the paint is brushed for the second time after the drying, the brushing direction is vertical to the brushing direction of the first time, therefore, the thickness of the formed cold-coated zinc coating is consistent, high-altitude corrosive media are prevented from permeating the surface of the fan blade 100 through the cold-coated zinc coating, the high-altitude corrosive media cannot contact and damage the fan blade 100, and the purposes of preventing corrosion and prolonging the service life of the fan blade 100 are achieved.
Example 2
In order to ensure that the weight of the fan blade is reduced and the fan blade is not broken or damaged by wind force during rotation, please refer to fig. 3, 4, 6 and 7, in the embodiment, a second connecting frame 113 is disposed on a side of the supporting block 111 close to the upper flange 220, the second connecting frame 113 is used for connecting with the second reinforcing block 1131, a first connecting frame 112 is disposed on a side of the supporting block 111 away from the second connecting frame 113, and the first connecting frame 112 is used for connecting with the first reinforcing block 1121.
Wherein, the side all bonds and has first protection pad 1111 about the supporting shoe 111, the side all bonds and has second protection pad 1122 about second reinforcement piece 1131 and first reinforcement piece 1121, and second reinforcement piece 1131 and first reinforcement piece 1121 are the arch design, the arch design further improves the holding power of second reinforcement piece 1131 and first reinforcement piece 1121 to fan blade 100 inner wall, and then improves fan blade 100's anti-wind moment, first protection pad 1111 and second protection pad 1122 are used for protecting fan blade 100's inner wall simultaneously.
When the fan blade 100 reinforcing device is used, the first connecting frame 112 is matched with the first reinforcing block 1121, the second connecting frame 113 is matched with the second reinforcing block 1131, the first connecting frame 112 and the second connecting frame 113 are used for transversely reinforcing the fan blade 100 through the supporting force of the supporting block 111, the blade cavity 110 is used for improving the wind resistance of the inner framework while the quality of the fan blade 100 is reduced through transverse reinforcement, and the fan blade 100 is prevented from being broken.
Example 3
In order to facilitate the detachment of the fan blade during the later maintenance and replacement, please refer to fig. 8-10, a plurality of lower insertion holes 2111 are annularly formed around the top of the lower flange plate 211 of the embodiment, an upper insertion hole 221 is formed at a position, corresponding to the lower insertion hole 2111, at the bottom of the upper flange plate 220, the lower insertion hole 2111 and the upper insertion hole 221 are used for inserting the pre-tightening bolt 222, a nut 2221 is threadedly connected to the bottom of the pre-tightening bolt 222, during the replacement, the nut 2221 is unscrewed, the pre-tightening bolt 222 is pulled out and the fan blade 100 is removed for replacement, during the installation, the pre-tightening bolt 222 is inserted into the upper insertion hole 221 and the lower insertion hole 2111, and the nut 2221 is screwed, so that the purpose of quick detachment and installation is achieved, and the whole device is.
The pretightening bolt 222 generates pretightening force along the axial lead direction with the lower flange plate 211 and the upper flange plate 220 under the action of a tightening torque, the diameter of a polish rod of the pretightening bolt 222 is 29-30mm, and when the diameter of the polish rod is 29-30mm, the pretightening bolt 222 has the best combination property of static strength and fatigue strength, so that the reliability and the anti-loosening capability of connection and the fatigue strength of the bolt are improved through the pretightening bolt 222.
When the fan blade 100 is detached and replaced, the nut 2221 is unscrewed, the pre-tightening bolt 222 is pulled out, the fan blade 100 is removed and replaced, when the fan blade is installed, the pre-tightening bolt 222 is inserted into the upper insertion hole 221 and the lower insertion hole 2111, and the nut 2221 is tightened to fix the fan blade 100 and the hub 210.
Further, a lower end gasket 2223 is arranged at the bottom of the pre-tightening bolt 222, an upper end gasket 2222 is arranged at the top of the pre-tightening bolt 222, and the upper end gasket 2222 and the lower end gasket 2223 are used for protecting the lower flange plate 211 and the upper flange plate 220 and avoiding being worn by the pre-tightening bolt 222.
Further, an upper protective cover 230 is sleeved outside the upper flange 220, a clamping groove 232 is annularly arranged around the upper protective cover 230, the clamping groove 232 is used for being in clamping fit with the buckle 2311, the upper protective cover 230 and the lower protective cover 231 form a closed cavity through clamping fit, the upper flange 220 and the lower flange 211 are wrapped by the closed cavity, therefore, the upper flange 220 and the lower flange 211 are protected, the lower protective cover 231 is welded at the bottom of the buckle 2311, and the lower protective cover 231 is sleeved outside the lower flange 211.
Wherein, the bottom of the upper shield 230 is adhered with a sealing ring 233, and the sealing ring 233 plays a role of sealing, so as to provide a dry environment for the closed cavities of the upper shield 230 and the lower shield 231.
During installation, the upper protection cover 230 and the lower protection cover 231 are close to each other, and when the upper protection cover 230 and the lower protection cover 231 are close to each other, the buckle 2311 is inserted into the clamping groove 232, so that the upper protection cover 230, the lower protection cover 231 and the sealing ring 233 are combined to form a closed cavity, and therefore the phenomenon that the fan blade 100 falls off due to the fact that the pretightening bolt 222 is corroded by high-altitude corrosive media is avoided.
The invention also provides a manufacturing method of the wind power blade capable of effectively resisting high-altitude corrosion type airflow, which comprises any one of the above household water purifying equipment based on deep purification, and comprises the following steps:
s1, cleaning up welding seam coatings, welding spatter particles and oil stains on the surface of the fan blade 100;
s2, after the base surface is cleaned, mixing the polystyrene resin, the anticorrosive pigment, the auxiliary agent and the diluent according to the proportion of 1: 2: 1, and uniformly stirring the mixed coating;
s3, after the paint is uniformly stirred, brushing the paint on the surface of the fan blade 100;
s4, after the first brushing is finished, waiting for the paint on the surface of the fan blade 100 to be dried;
and S5, after drying, brushing for the second time, wherein the brushing direction is vertical to the brushing direction of the first time, and after surface drying, forming a cold-coating zinc coating which prevents high-altitude corrosive media from permeating into the surface of the fan blade 100.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A wind power blade effective against high altitude erosion type airflow, comprising a fan blade (100) and a nacelle (200) disposed at the rear side of the fan blade (100), characterized in that: cabin (200) include wheel hub (210), the contained angle that is 120 around wheel hub (210) is equipped with three lower flange dish (211) in proper order, lower flange dish (211) are used for being connected with last flange dish (220), the top welding of going up flange dish (220) has fan blade (100), fan blade (100) include at least:
the blade cavity (110), a supporting block (111) is arranged in the blade cavity (110) and close to the upper flange plate (220), and the supporting block (111) is designed in an I shape;
the coating (120) comprises a wear-resistant coating (121), the wear-resistant coating (121) is a wear-resistant metal powder core wire primed by low-carbon martensite, the low-carbon martensite is a supersaturated solid solution of carbon in alpha-Fe, the low-carbon martensite has high strength and good plasticity, the wear-resistant metal powder core wire is plated on the surface of the blade cavity (110) in an electroplating mode, the wear-resistant metal powder core wire is used as an anode by electroplating, the fan blade (100) is used as a cathode, cations of the wear-resistant metal powder core wire are reduced on the surface of the fan blade (100) to form a plating layer, a cation solution containing the wear-resistant metal powder core wire is used as an electroplating solution to keep the cation concentration of the wear-resistant metal powder core wire unchanged, and the surface of the blade cavity (110) is provided with an anti-corrosion coating (122), the anti-corrosion coating (122) is a cold-coating zinc coating, a film forming substance of the cold-coating zinc coating is organic resin, and the organic resin is polystyrene resin.
2. The wind turbine blade effective against high altitude erosion type airflows of claim 1, wherein: a second connecting frame (113) is arranged on one side, close to the upper flange plate (220), of the supporting block (111), the second connecting frame (113) is used for being connected with a second reinforcing block (1131), a first connecting frame (112) is arranged on one side, away from the second connecting frame (113), of the supporting block (111), and the first connecting frame (112) is used for being connected with a first reinforcing block (1121).
3. The wind turbine blade effective against high altitude erosion type airflows of claim 2, wherein: the left side and the right side of the supporting block (111) are respectively bonded with a first protection pad (1111), the left side and the right side of the second reinforcing block (1131) and the first reinforcing block (1121) are respectively bonded with a second protection pad (1122), and the second reinforcing block (1131) and the first reinforcing block (1121) are designed in an arch shape.
4. The wind turbine blade effective against high altitude erosion type airflows of claim 1, wherein: a plurality of lower inserting holes (2111) are annularly formed around the top of the lower flange plate (211), an upper inserting hole (221) is formed in the position, corresponding to the lower inserting hole (2111), of the bottom of the upper flange plate (220), the lower inserting hole (2111) and the upper inserting hole (221) are used for inserting a pre-tightening bolt (222), and a nut (2221) is in threaded connection with the bottom of the pre-tightening bolt (222).
5. The wind turbine blade effective against high altitude erosion type airflows of claim 4, wherein: the pre-tightening bolt (222) generates pre-tightening force along the axial lead direction with the lower flange plate (211) and the upper flange plate (220) under the action of tightening torque.
6. The wind turbine blade effective against high altitude erosion type airflows of claim 5, wherein: the diameter of a polish rod of the pre-tightening bolt (222) is 29-30 mm.
7. The wind turbine blade effective against high altitude erosion type airflows of claim 6, wherein: the bottom of pretension bolt (222) is equipped with lower extreme gasket (2223), the top of pretension bolt (222) is equipped with upper end gasket (2222).
8. The wind turbine blade effective against high altitude erosion type airflows of claim 7, wherein: the outer cover of going up ring flange (220) is equipped with protection casing (230), it is the annular around protection casing (230) and is equipped with draw-in groove (232), draw-in groove (232) are used for cooperating with buckle (2311) joint, the bottom welding of buckle (2311) has lower protection casing (231), lower protection casing (231) cover is established the lower flange dish (211) outside.
9. The wind turbine blade effective against high altitude erosion type airflows of claim 8, wherein: and a sealing ring (233) is bonded to the bottom of the upper protective cover (230).
10. A method for manufacturing a wind power blade effective against high altitude erosion type air currents, comprising a wind power blade effective against high altitude erosion type air currents according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:
s1, cleaning welding seam coatings, welding spatter particles and oil stains on the surface of the fan blade (100);
s2, after the base surface is cleaned, mixing the polystyrene resin, the anticorrosive pigment, the auxiliary agent and the diluent according to the proportion of 1: 2: 1, and uniformly stirring the mixed coating;
s3, after the paint is uniformly stirred, brushing the paint on the surface of the fan blade (100);
s4, after the first brushing is finished, waiting for the paint on the surface of the fan blade (100) to be dried;
and S5, after drying, brushing for the second time, wherein the brushing direction is vertical to the brushing direction of the first time, and after surface drying, forming a cold-coating zinc coating which prevents high-altitude corrosive media from permeating into the surface of the fan blade (100).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010677626.1A CN111779624A (en) | 2020-07-15 | 2020-07-15 | Wind power blade capable of effectively resisting high-altitude corrosion type airflow and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010677626.1A CN111779624A (en) | 2020-07-15 | 2020-07-15 | Wind power blade capable of effectively resisting high-altitude corrosion type airflow and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111779624A true CN111779624A (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010677626.1A Withdrawn CN111779624A (en) | 2020-07-15 | 2020-07-15 | Wind power blade capable of effectively resisting high-altitude corrosion type airflow and manufacturing method thereof |
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| CN (1) | CN111779624A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403808A (en) * | 2022-09-15 | 2022-11-29 | 南通兴东叶片科技有限公司 | Fan blade adhered with corrosion-resistant coating and preparation process thereof |
-
2020
- 2020-07-15 CN CN202010677626.1A patent/CN111779624A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403808A (en) * | 2022-09-15 | 2022-11-29 | 南通兴东叶片科技有限公司 | Fan blade adhered with corrosion-resistant coating and preparation process thereof |
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