CN114526190A - Wind power blade front edge protection device with turbulence structure and installation method - Google Patents
Wind power blade front edge protection device with turbulence structure and installation method Download PDFInfo
- Publication number
- CN114526190A CN114526190A CN202210156155.9A CN202210156155A CN114526190A CN 114526190 A CN114526190 A CN 114526190A CN 202210156155 A CN202210156155 A CN 202210156155A CN 114526190 A CN114526190 A CN 114526190A
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- protection device
- blade
- front edge
- leading edge
- positioning line
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- 230000004224 protection Effects 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims description 23
- 238000009434 installation Methods 0.000 title claims description 18
- 230000004323 axial length Effects 0.000 claims abstract description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 9
- 230000000873 masking effect Effects 0.000 claims description 9
- 238000005498 polishing Methods 0.000 claims description 9
- 239000004743 Polypropylene Substances 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 238000005108 dry cleaning Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 235000019441 ethanol Nutrition 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000001681 protective effect Effects 0.000 description 7
- 238000010248 power generation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002519 antifouling agent Substances 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 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
- F03D1/0608—Rotors characterised by their aerodynamic shape
- F03D1/0633—Rotors characterised by their aerodynamic shape 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
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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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
Abstract
The invention discloses a wind power blade front edge protection device with a turbulence structure, which comprises protection device bodies arranged on two sides of a blade front edge, wherein the shape of each protection device body is the same as that of the blade front edge, the protection device bodies are adhered to the axial length of the blade front edge, and at least two bulges are arranged on the outer side surface of each protection device body. According to the wind power blade front edge protection device with the turbulence structure, disclosed by the invention, the front edge of the blade can be protected from being damaged for a long time, the phenomenon of airflow stagnation is prevented, a larger stalling attack angle is allowed, the on-way loss of airflow is reduced, and the generating capacity is improved.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a wind power blade leading edge protection device with a turbulent flow structure and an installation method.
Background
Generally, in the operation process of a wind power blade, the rotating speed of a local section is linearly increased along with the increase of the length of the blade, so that the position of the tip of the blade is relatively high linear speed, the operating speed of the tip of the current mainstream blade is about 85m/s, namely 306km/h, and the speed is almost the same as that of a high-speed rail. The high velocity is attacked by particles in the air surrounding the blades, including raindrops, hail, salt spray, sand, etc., which are the leading factors causing damage to the leading edge of the blade, and other factors, such as ultraviolet light and moisture, also cause the blade to age. After the front edge of the blade tip position is damaged, the flowing gas can be separated differently according to the damage degree, and after the gas is separated, the suction force on the surface of the blade can be reduced in a large range, so that the power generation loss is caused. To address this problem, it is common practice in the industry to apply protective paint and protective films to the leading edge. The protective film has strict requirements on the construction process, needs to be polished and cleaned by fine sand paper before film pasting, has large workload, and even extremely tiny bubbles are not allowed. In addition, the transportation and storage of the protective film are also laborious. The protective film is easy to damage in the transportation and hoisting processes, the phenomena of bubbling, edge rolling, weathering and displacement of the protective film at the blade tip and the like often occur in the operation process of the blade, the service life of the general protective film is 4-5 years, and the replacement cost in the later period is higher.
Disclosure of Invention
The invention aims to provide a wind power blade leading edge protection device with a turbulent flow structure and an installation method thereof, which can protect the leading edge of a blade from being damaged for a long time, prevent the phenomenon of airflow stagnation, allow a larger stalling attack angle, reduce the airflow loss along the way and improve the power generation capacity.
In order to achieve the purpose, the invention provides a wind power blade leading edge protection device with a turbulence structure, which comprises protection device bodies arranged on two sides of a blade leading edge, wherein the shape of each protection device body is the same as that of the blade leading edge, the protection device bodies are adhered to the axial length of the blade leading edge, and the outer side surface of each protection device body is provided with at least two bulges.
Preferably, the protection device body is made of one of ABS, PP, ASA, PPS, PU, polyester and polypropylene.
Preferably, the protrusions are arranged in one of an oval shape, a triangular shape and a triangle-like shape.
Preferably, the length of the protection device body is less than 500 mm.
Preferably, the length of the protection device body is 200 mm.
A method for installing a wind power blade leading edge protection device with a turbulent flow structure comprises the following steps:
(1) according to the requirement, searching a region with the blade section running speed of more than 60m/s at the rated rotating speed;
(2) according to the width of the device, drawing a position to be installed on the front edge of the blade by using a marking pen as a positioning line, namely a positioning line on the suction surface and a positioning line on the pressure surface;
(3) the masking paper is bonded along the positioning line, the suction surface and the pressure surface are respectively one, and the front edge of the masking paper is required to be aligned with the positioning line and cannot cover the installation area of the device;
(4) polishing the positions between the masking papers of the front edge area by using a polisher or 120-mesh abrasive paper, removing the painted surface, polishing the surface fiber cloth to form a rough surface, cleaning dust by using a cleaning cloth, cleaning the polishing area by using isopropyl alcohol/ethyl alcohol, and wiping the rough surface by using a dry cleaning cloth;
(5) glue is evenly mixed and then smeared on the front edge of the blade, and the device is sequentially arranged on the front edge of the blade, wherein the gap between the devices is 1-3 mm.
Therefore, the wind power blade leading edge protection device with the turbulence structure and the installation method can protect the leading edge of the blade from being damaged for a long time, prevent the phenomenon of airflow stagnation, allow a larger stalling attack angle, reduce the airflow loss along the way and improve the power generation capacity.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of a wind turbine blade leading edge protection device with a spoiler structure and an installation method according to an embodiment of the present invention;
FIG. 2 is a front view of an embodiment of a wind turbine blade leading edge protection device with a spoiler structure and an installation method of the wind turbine blade leading edge protection device with the spoiler structure;
FIG. 3 is a schematic view of a semicircular bulge of a wind power blade leading edge protection device with a spoiler structure and an installation method according to an embodiment of the invention;
FIG. 4 is a schematic view of an obtuse triangular protrusion of an embodiment of a wind turbine blade leading edge protection device with a spoiler structure and an installation method of the invention;
FIG. 5 is a schematic diagram of an acute-angle triangular protrusion of an embodiment of a wind turbine blade leading edge protection device with a spoiler structure and an installation method of the wind turbine blade leading edge protection device with the spoiler structure;
FIG. 6 is a schematic view of a triangle-like protrusion of an embodiment of a wind turbine blade leading edge protection device with a spoiler structure and an installation method of the invention;
FIG. 7 is a schematic view of a leading edge of a wind turbine blade in which leading edge mold closing seams are asymmetrically distributed on two sides of the leading edge of the blade according to an embodiment of the wind turbine blade leading edge protection device with a spoiler structure and an installation method of the invention;
FIG. 8 is a schematic view of the leading edge of a wind turbine blade with a spoiler structure according to an embodiment of the wind turbine blade leading edge protection apparatus and installation method of the present invention, where the protrusion does not cover the leading edge mold-closing gap;
fig. 9 is an installation schematic diagram of a wind power blade leading edge protection device with a spoiler structure and an installation method according to an embodiment of the invention.
Detailed Description
The technical solution of the present invention is further illustrated by the accompanying drawings and examples.
Examples
The invention provides a wind power blade front edge protection device with a turbulence structure, which comprises protection device bodies 2 arranged on two sides of a blade front edge 1, wherein the shapes of the protection device bodies 2 are the same as those of the blade front edge 1, the protection device bodies 2 are adhered to the axial length of the blade front edge 1, and at least two bulges 3 are arranged on the outer side surface of each protection device body 2. The material of protection device body 2 is one of ABS, PP, ASA, PPS, PU, polyester and polypropylene, in order to avoid using metal product to draw the thunder and lightning, uses anti-wind sand, ultraviolet resistance's high strength plastic products. The length of the protection device body 2 is less than 500 mm. Preferably 200mm in length, and is mounted by a plurality of protective device bodies. The protection device body is located at the front edge of the blade, particularly at the position of a mold closing seam of the front edge of the blade, generally, the front edge mold closing seam 4 is the front edge of the blade, the protection device is close to the position of a blade tip, the speed is high when the blade tip runs, high-speed collision particles can damage two collision structural bodies, particularly, the speed of the blade tip during running at rated wind speed is greater than 60m/s, the speed is greater than 200km/h, so 60m/s can also be regarded as a speed dividing point, and the protection device can be installed at the position of the speed greater than 60 m/s. For most of blades, the structure is formed by bonding a suction surface and a pressure surface, so that a mold closing gap is formed for filling structural adhesive, when the front edge of the blade is damaged due to overlarge speed, the front edge mold closing gap has poor wind and sand resistance, and the damage degree is the worst, so that the protection device needs to cover the region, but the protruding part can not cover the front edge mold closing gap, in order to be better matched with the front edge of the blade, the protection device can be set to be asymmetrical, the protruding position can not be arranged on the front edge mold closing gap, and the purpose is to reduce the attaching range of the protection device and the blade.
The bulge 3 is set to be one of an ellipse, a triangle and a triangle-like, wherein the ellipse is relatively stable, and the influence on the blade tip of the original blade is also in a controllable range.
A method for installing a wind power blade leading edge protection device with a turbulent flow structure comprises the following steps:
(1) according to the requirement, a region with the blade section running speed of more than 60m/s at the rated rotating speed is searched.
(2) According to the width of the device, a marking pen is used for drawing a position to be installed on the front edge of the blade as a positioning line, namely a positioning line is arranged on the suction surface, and a positioning line is arranged on the pressure surface.
(3) The masking paper is bonded along the positioning line, the suction surface and the pressure surface are respectively one, the front edge of the masking paper is required to be aligned with the positioning line, and the mounting area of the device cannot be covered.
(4) Polishing the position between the masking papers of the front edge area by using a polisher or 120-mesh abrasive paper, removing a painted surface, polishing surface fiber cloth to form a rough surface, cleaning dust by using a cleaning cloth, cleaning a polishing area by using isopropyl alcohol/alcohol, wiping the rough surface by using a dry cleaning cloth, and strictly preventing the clean bonding surface from being touched by hands to prevent stains from being left on the bonding surface.
(5) Glue is evenly mixed and then is smeared on the front edge of the blade, the device is sequentially arranged on the front edge of the blade, and the gap between the devices is 1-3mm, so that the interference generated in the operation process of the blade is prevented.
Therefore, the wind power blade leading edge protection device with the turbulence structure and the installation method can protect the leading edge of the blade from being damaged for a long time, prevent the phenomenon of airflow stagnation, allow a larger stalling attack angle, reduce the airflow loss along the way and improve the power generation capacity.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a wind-powered electricity generation blade leading edge protection device with vortex structure which characterized in that:
the blade front edge protection device comprises protection device bodies arranged on two sides of the front edge of a blade, wherein the shape of each protection device body is the same as that of the front edge of the blade, the protection device bodies are adhered to the axial length of the front edge of the blade, and at least two bulges are arranged on the outer side surface of each protection device body.
2. The wind turbine blade leading edge protection device with the flow disturbing structure as claimed in claim 1, wherein: the protection device body is made of one of ABS, PP, ASA, PPS, PU, polyester and polypropylene.
3. The wind turbine blade leading edge protection device with the flow disturbing structure as claimed in claim 1, wherein: the protrusions are arranged into one of an oval shape, a triangular shape and a triangle-like shape.
4. The wind turbine blade leading edge protection device with the flow disturbing structure as claimed in claim 1, wherein: the length of the protection device body is less than 500 mm.
5. The wind turbine blade leading edge protection device with the flow disturbing structure as claimed in claim 4, wherein: the length of protection device body is 200 mm.
6. The method for installing the wind power blade leading edge protection device with the spoiler structure according to any one of claims 1 to 5, comprising the steps of:
(1) according to the requirement, searching a region with the blade section running speed of more than 60m/s at the rated rotating speed;
(2) according to the width of the device, drawing a position to be installed on the front edge of the blade by using a marking pen as a positioning line, namely a positioning line on the suction surface and a positioning line on the pressure surface;
(3) the masking paper is bonded along the positioning line, the suction surface and the pressure surface are respectively one, and the front edge of the masking paper is required to be aligned with the positioning line and cannot cover the installation area of the device;
(4) polishing the positions between the masking papers of the front edge area by using a polisher or 120-mesh abrasive paper, removing the painted surface, polishing the surface fiber cloth to form a rough surface, cleaning dust by using a cleaning cloth, cleaning the polishing area by using isopropyl alcohol/ethyl alcohol, and wiping the rough surface by using a dry cleaning cloth;
(5) glue is evenly mixed and then smeared on the front edge of the blade, and the device is sequentially arranged on the front edge of the blade, wherein the gap between the devices is 1-3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210156155.9A CN114526190A (en) | 2022-02-21 | 2022-02-21 | Wind power blade front edge protection device with turbulence structure and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210156155.9A CN114526190A (en) | 2022-02-21 | 2022-02-21 | Wind power blade front edge protection device with turbulence structure and installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114526190A true CN114526190A (en) | 2022-05-24 |
Family
ID=81624420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210156155.9A Pending CN114526190A (en) | 2022-02-21 | 2022-02-21 | Wind power blade front edge protection device with turbulence structure and installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114526190A (en) |
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2022
- 2022-02-21 CN CN202210156155.9A patent/CN114526190A/en active Pending
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