CN112943566A - Automatic anti-icing defroster of fan blade - Google Patents
Automatic anti-icing defroster of fan blade Download PDFInfo
- Publication number
- CN112943566A CN112943566A CN202110353178.4A CN202110353178A CN112943566A CN 112943566 A CN112943566 A CN 112943566A CN 202110353178 A CN202110353178 A CN 202110353178A CN 112943566 A CN112943566 A CN 112943566A
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- China
- Prior art keywords
- fan blade
- air guide
- icing
- fan
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 75
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 238000007710 freezing Methods 0.000 claims description 2
- 230000008014 freezing Effects 0.000 claims description 2
- 238000004321 preservation Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/40—Ice detection; De-icing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/60—Cooling or heating of wind motors
-
- 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
According to the automatic anti-icing and deicing device for the fan blade, the fan blade is of a hollow structure, and an anti-icing and deicing device body is arranged in the hollow structure; the anti-icing and deicing device body comprises a heating assembly and an air guide assembly, wherein the heating assembly is arranged on the inner wall of the fan blade; the air guide assembly is used for guiding heat in the inner cavity of the fan blade out to the outer surface of the fan blade and is arranged at the end part of the fan blade; the device can be when icing on the blade, prevents ice through the heat is automatic to be handled, guarantees the normal operating of fan.
Description
Technical Field
The invention relates to the technical field of fan blades, in particular to an automatic anti-icing and de-icing device for a fan blade.
Background
The fan blade is one of the core components of the wind driven generator, accounts for about 15% -20% of the total cost of the fan, the design quality of the fan blade directly relates to the performance and benefit of the fan, the fan blade has high requirements on materials, and not only needs to have light weight, but also needs to have high strength, corrosion resistance and fatigue resistance, so that the fan blade is widely manufactured by the existing fan manufacturers by adopting composite materials, and when the air temperature is low, the surface of the blade can be frozen.
The existing fan blade is mainly deiced through a heating mode, the blade is prevented from being damaged, the service life of the fan blade is prolonged, however, in the heating process of the deicing mode, due to the rotation of the blade, heat is lost in a large amount, the heat preservation effect is poor, the deicing effect is poor, and the deicing needs a long time.
Disclosure of Invention
The invention aims to provide an automatic fan blade deicing device, which overcomes the defect of poor effect of the conventional fan blade deicing device.
In order to achieve the purpose, the invention adopts the technical scheme that:
according to the automatic anti-icing and deicing device for the fan blade, the fan blade is of a hollow structure, and an anti-icing and deicing device body is arranged in the hollow structure; the anti-icing and deicing device body comprises a heating assembly and an air guide assembly, wherein the heating assembly is arranged on the inner wall of the fan blade; the air guide assembly used for guiding heat in the inner cavity of the fan blade out to the outer surface of the fan blade is arranged at the end part of the fan blade.
Preferably, the heating assembly comprises a heating layer and a heat conduction layer, wherein the heat conduction layer and the heating layer are sequentially arranged on the inner wall of the fan blade; a heating plate is arranged in the heating layer.
Preferably, an insulating layer is arranged on the heating layer.
Preferably, the air guide assembly is communicated with an inner cavity of the fan blade; the air guide assembly comprises an air guide pipe and an induced draft fan, wherein one end of the air guide pipe is a closed end, and the other end of the air guide pipe is an open end; the closed end of the air guide pipe is connected with a rotating shaft of the fan, the open end of the air guide pipe is connected with an air outlet of the induced draft fan, and an air inlet of the induced draft fan is communicated with an inner cavity of the fan blade;
an air outlet is formed in the air guide pipe and faces the outer surface of the fan blade.
Preferably, an air outlet of the air guide pipe is connected with an air injection pipe, and an air outlet of the air injection pipe faces to the outer surface of the fan blade.
Preferably, an air guide layer for transferring heat in the heating assembly to the inner cavity of the fan blade is arranged between the heating assembly and the inner cavity of the fan blade.
Preferably, the anti-icing defroster body still includes control system, control system includes singlechip and detecting element, wherein, detecting element is used for detecting whether there is icing on the fan blade to transmit the testing result to the singlechip, the singlechip is used for opening and close according to the start-stop of received testing result control heating element and air guide subassembly.
Preferably, the fan blade is of a hollow structure, and an anti-icing and deicing device body is arranged in the hollow structure; the anti-icing and deicing device body comprises a heating assembly and an air guide assembly, wherein the heating assembly is arranged on the inner wall of the fan blade; the air guide assembly is used for guiding heat in the inner cavity of the fan blade out to the outer surface of the fan blade and is arranged at the end part of the fan blade;
the heating assembly comprises a heating layer and a heat conduction layer, wherein the heat conduction layer and the heating layer are sequentially arranged on the inner wall of the fan blade; a heating plate is arranged in the heating layer;
the air guide assembly is communicated with the inner cavity of the fan blade; the air guide assembly comprises an air guide pipe and an induced draft fan, wherein one end of the air guide pipe is a closed end, and the other end of the air guide pipe is an open end; the closed end of the air guide pipe is connected with a rotating shaft of the fan, the open end of the air guide pipe is connected with an air outlet of the induced draft fan, and an air inlet of the induced draft fan is communicated with an inner cavity of the fan blade;
an air outlet is formed in the air guide pipe and faces the outer surface of the fan blade.
Preferably, the fan blade is of a hollow structure, and an anti-icing and deicing device body is arranged in the hollow structure; the anti-icing and deicing device body comprises a heating assembly and an air guide assembly, wherein the heating assembly is arranged on the inner wall of the fan blade; the air guide assembly is used for guiding heat in the inner cavity of the fan blade out to the outer surface of the fan blade and is arranged at the end part of the fan blade;
the heating assembly comprises a heating layer and a heat conduction layer, wherein the heat conduction layer and the heating layer are sequentially arranged on the inner wall of the fan blade; a heating plate is arranged in the heating layer;
the air guide assembly is communicated with the inner cavity of the fan blade; the air guide assembly comprises an air guide pipe and an induced draft fan, wherein one end of the air guide pipe is a closed end, and the other end of the air guide pipe is an open end; the closed end of the air guide pipe is connected with a rotating shaft of the fan, the open end of the air guide pipe is connected with an air outlet of the induced draft fan, and an air inlet of the induced draft fan is communicated with an inner cavity of the fan blade;
the air guide pipe is provided with an air outlet, and the air outlet faces to the outer surface of the fan blade;
the anti-icing defroster body still includes control system, control system includes singlechip and detecting element, wherein, detecting element is used for detecting whether there is freezing on the fan blade to transmit the testing result to the singlechip, the singlechip is used for opening and close according to the start-stop of received testing result control heating element and air guide subassembly.
Compared with the prior art, the invention has the beneficial effects that:
according to the automatic anti-icing and deicing device for the fan blade, when the fan blade is frozen, the inner wall of the blade is heated through the heating assembly, so that ice on the fan blade is melted; redundant heat of the heating assembly is discharged to the outer surface of the fan blade through the air guide assembly, so that the deicing is directly carried out, and the deicing efficiency is further improved; the device can be when icing on the blade, prevents ice through the heat is automatic to be handled, guarantees the normal operating of fan.
Drawings
FIG. 1 is a schematic view of the overall structure;
FIG. 2 is a front view of the overall structure;
FIG. 3 is a schematic structural view of a fan blade;
FIG. 4 is a schematic structural view of an air guide plate;
wherein, 1, controlling the system; 2. a fan blade; 3. rotating the block; 4. a rotating shaft; 202. a heat-insulating layer; 203. a heating layer; 204. a heat conductive layer; 205. a gas-conducting layer; 206. a cavity; 207. an induced draft fan; 208. an air guide pipe; 209. a gas ejector tube; 210. a water-resistant film; 211. a gas guide plate; 212. and (4) a vent hole.
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.
Referring to fig. 1-4, the automatic anti-icing and de-icing device for the fan blade provided by the invention comprises a rotating shaft 2 and a rotating block 3 fixedly arranged at the end part of the rotating shaft 2, wherein a plurality of fan blade devices are fixedly arranged on the side surface of the rotating block 3, and the rotating shaft 2 drives the fan blade devices on the rotating block 3 to rotate.
The flabellum device includes heating element, hollow fan blade 4 and air guide subassembly, is provided with heating element on the 4 inner walls of fan blade, and 4 tip of fan blade are provided with the air guide subassembly, heat through heating element, make the heat derive through the air guide subassembly, carry out the deicing to make the efficiency of deicing increase.
Heating element includes heat preservation 202, zone of heating 203, heat-conducting layer 204 and air guide layer 205, wherein, the air guide layer 205 outside is provided with heat preservation 202, the heat preservation 202 outside is provided with zone of heating 203, the zone of heating 203 outside is provided with heat-conducting layer 204, the heat-conducting layer 204 outside links firmly with 4 inner walls of fan blade, air guide layer 205 encloses into cavity 206, be provided with draught fan 207 in the cavity 206, heat through zone of heating 203, keep warm through heat preservation 202, carry out the heat conduction through heat-conducting layer 204, make the ice on the fan blade 4 melt, make unnecessary heat discharge through air guide layer 205, the heat that air guide layer 205 derived is discharged through draught fan 207, accelerate deicing efficiency.
The air guide assembly comprises an air guide pipe 208 with one closed end and a plurality of air injection pipes 209 communicated with the air guide pipe 208, the opening of the air guide pipe 208 is positioned in the cavity 206 and connected with the induced draft fan 207, the closed end of the air guide pipe 208 is positioned outside the fan blade 4, the outlet of the air injection pipe 209 faces the outer side of the fan blade 4, heat is guided into the air guide pipe 208 through the induced draft fan 207, and then the heat is discharged to the surface of the fan blade 4 through the air injection pipes 209.
Preferably, the closed end of the air duct 208 is fixedly connected to the turning block 3.
Examples
The automatic anti-icing defroster of fan blade that this embodiment provided still includes control system 1, control system includes singlechip and detecting element, wherein, detecting element is used for detecting whether there is icing on the fan blade to transmit the testing result to the singlechip, the singlechip is used for opening and close according to the start-stop of received testing result control heating element and air guide subassembly.
The single chip microcomputer controls the heating plate to heat, and simultaneously controls the induced draft fan 207 to induce air.
In the embodiment, the induced draft fan 207 and the heating plate are respectively and electrically connected with the single chip microcomputer.
The detection unit is an icing sensor and is in the prior art together with the single chip microcomputer.
The fan blade 201 is provided with a waterproof film 210, and the fan blade 4 achieves a waterproof effect through the waterproof film 210.
Preferably, the air guide layer 205 includes an air guide plate 211, and the air guide plate 211 is opened with a vent hole 212, so that when there is excess heat, the heat is discharged into the cavity 206 through the vent hole 212 of the air guide plate 211.
Preferably, a heating plate is arranged in the heating layer 203, cotton is arranged in the heat preservation layer 202, heating is carried out through the heating plate, and heat preservation is carried out through the cotton.
The working principle and the using process of the invention are as follows: it freezes to have on the fan blade 4 to detect through detecting element, then the testing result passes through the singlechip, then the singlechip control hot plate heats, and control draught fan 207 simultaneously carries out the induced air, heats through zone of heating 203, keeps warm through heat preservation 202, conducts heat through heat-conducting layer 204, makes the ice on the fan blade 4 melt.
Afterwards, excessive heat is discharged into the cavity 206 through the air guide layer 205, the heat is guided into the air guide pipe 208 through the induced draft fan 207, and then the heat is discharged onto the surface of the fan blade 4 through the air jet pipe 209.
While there has been shown and described the fundamental principles of the invention, the principal features and advantages thereof, it will be understood by those skilled in the art that the invention is not limited by the foregoing embodiments, which are presently preferred and not intended to be limiting, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. An automatic anti-icing and deicing device for fan blades is characterized in that the fan blades are of a hollow structure, and an anti-icing and deicing device body is arranged in the hollow structure; the anti-icing and deicing device body comprises a heating assembly and an air guide assembly, wherein the heating assembly is arranged on the inner wall of the fan blade; the air guide assembly used for guiding heat in the inner cavity of the fan blade out to the outer surface of the fan blade is arranged at the end part of the fan blade.
2. The automatic anti-icing and de-icing device for the fan blades as claimed in claim 1, wherein the heating assembly comprises a heating layer (203) and a heat conduction layer (204), wherein the heat conduction layer (204) and the heating layer (203) are sequentially arranged on the inner wall of the fan blades; a heating plate is arranged in the heating layer (203).
3. The automatic fan blade anti-icing and deicing device as claimed in claim 2, wherein an insulating layer (202) is arranged on the heating layer (203).
4. The automatic anti-icing and de-icing device for the fan blade of claim 1, wherein the air guide assembly is communicated with the inner cavity of the fan blade; the air guide assembly comprises an air guide pipe (208) and an induced draft fan (207), wherein one end of the air guide pipe (208) is a closed end, and the other end of the air guide pipe is an open end; the closed end of the air guide pipe (208) is connected with a rotating shaft of the fan, the open end of the air guide pipe is connected with an air outlet of the induced draft fan (207), and an air inlet of the induced draft fan (207) is communicated with an inner cavity of the fan blade;
an air outlet is formed in the air guide pipe (208), and faces the outer surface of the fan blade.
5. The automatic fan blade anti-icing and deicing device according to claim 4, wherein an air outlet of the air guide pipe (208) is connected with an air injection pipe (209), and an air outlet of the air injection pipe (209) faces the outer surface of the fan blade.
6. The automatic fan blade anti-icing and de-icing device according to claim 1, wherein an air guiding layer (205) for transferring heat in the heating assembly to the inner cavity of the fan blade is arranged between the heating assembly and the inner cavity of the fan blade.
7. The automatic fan blade anti-icing and deicing device according to claim 1, wherein the anti-icing and deicing device body further comprises a control system, the control system comprises a single chip microcomputer (3) and a detection unit (2), the detection unit (2) is used for detecting whether the fan blade is iced or not and transmitting a detection result to the single chip microcomputer (3), and the single chip microcomputer (3) is used for controlling the start and stop of the heating assembly and the air guide assembly according to the received detection result.
8. The automatic anti-icing and deicing device for the fan blades as claimed in claim 1, wherein the fan blades are hollow structures, and anti-icing and deicing device bodies are arranged in the hollow structures; the anti-icing and deicing device body comprises a heating assembly and an air guide assembly, wherein the heating assembly is arranged on the inner wall of the fan blade; the air guide assembly is used for guiding heat in the inner cavity of the fan blade out to the outer surface of the fan blade and is arranged at the end part of the fan blade;
the heating assembly comprises a heating layer (203) and a heat conduction layer (204), wherein the heat conduction layer (204) and the heating layer (203) are sequentially arranged on the inner wall of the fan blade; a heating plate is arranged in the heating layer (203);
the air guide assembly is communicated with the inner cavity of the fan blade; the air guide assembly comprises an air guide pipe (208) and an induced draft fan (207), wherein one end of the air guide pipe (208) is a closed end, and the other end of the air guide pipe is an open end; the closed end of the air guide pipe (208) is connected with a rotating shaft of the fan, the open end of the air guide pipe is connected with an air outlet of the induced draft fan (207), and an air inlet of the induced draft fan (207) is communicated with an inner cavity of the fan blade;
an air outlet is formed in the air guide pipe (208), and faces the outer surface of the fan blade.
9. The automatic anti-icing and deicing device for the fan blades as claimed in claim 1, wherein the fan blades are hollow structures, and anti-icing and deicing device bodies are arranged in the hollow structures; the anti-icing and deicing device body comprises a heating assembly and an air guide assembly, wherein the heating assembly is arranged on the inner wall of the fan blade; the air guide assembly is used for guiding heat in the inner cavity of the fan blade out to the outer surface of the fan blade and is arranged at the end part of the fan blade;
the heating assembly comprises a heating layer (203) and a heat conduction layer (204), wherein the heat conduction layer (204) and the heating layer (203) are sequentially arranged on the inner wall of the fan blade; a heating plate is arranged in the heating layer (203);
the air guide assembly is communicated with the inner cavity of the fan blade; the air guide assembly comprises an air guide pipe (208) and an induced draft fan (207), wherein one end of the air guide pipe (208) is a closed end, and the other end of the air guide pipe is an open end; the closed end of the air guide pipe (208) is connected with a rotating shaft of the fan, the open end of the air guide pipe is connected with an air outlet of the induced draft fan (207), and an air inlet of the induced draft fan (207) is communicated with an inner cavity of the fan blade;
an air outlet is formed in the air guide pipe (208), and faces the outer surface of the fan blade;
the anti-icing defroster body still includes control system, control system includes singlechip (3) and detecting element (2), wherein, detecting element (2) are used for detecting whether there is freezing on the fan blade to transmit testing result to singlechip (3), singlechip (3) are used for opening and close according to the start-stop of received testing result control heating element and air guide subassembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110353178.4A CN112943566A (en) | 2021-03-31 | 2021-03-31 | Automatic anti-icing defroster of fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110353178.4A CN112943566A (en) | 2021-03-31 | 2021-03-31 | Automatic anti-icing defroster of fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112943566A true CN112943566A (en) | 2021-06-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110353178.4A Pending CN112943566A (en) | 2021-03-31 | 2021-03-31 | Automatic anti-icing defroster of fan blade |
Country Status (1)
| Country | Link |
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| CN (1) | CN112943566A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623150A (en) * | 2021-09-08 | 2021-11-09 | 叶县国博大石崖风力发电有限公司 | Blade deicing mechanism for wind driven generator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050242233A1 (en) * | 2002-10-17 | 2005-11-03 | Lorenzo Battisti | Anti-icing system for wind turbines |
| US20140199170A1 (en) * | 2013-01-14 | 2014-07-17 | Siemens Aktiengesellschaft | Wind turbine rotor blade de-icing arrangement |
| CN206625943U (en) * | 2017-03-28 | 2017-11-10 | 万鹏 | A kind of blade anti-icing and de-icing device for wind-driven generator |
| CN206770133U (en) * | 2017-04-23 | 2017-12-19 | 崔明月 | A kind of wind wheel blade Hybrid Heating deicing system |
| CN109505729A (en) * | 2017-09-14 | 2019-03-22 | 西门子歌美飒可再生能源公司 | Wind turbine blade with cover plate for hot air exhaust shielding for deicing and/or anti-icing |
| CN212296729U (en) * | 2020-08-31 | 2021-01-05 | 昆明理工大学 | Fan blade defroster |
| CN215979716U (en) * | 2021-03-31 | 2022-03-08 | 西安热工研究院有限公司 | Automatic anti-icing defroster of fan blade |
-
2021
- 2021-03-31 CN CN202110353178.4A patent/CN112943566A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050242233A1 (en) * | 2002-10-17 | 2005-11-03 | Lorenzo Battisti | Anti-icing system for wind turbines |
| US20140199170A1 (en) * | 2013-01-14 | 2014-07-17 | Siemens Aktiengesellschaft | Wind turbine rotor blade de-icing arrangement |
| CN206625943U (en) * | 2017-03-28 | 2017-11-10 | 万鹏 | A kind of blade anti-icing and de-icing device for wind-driven generator |
| CN206770133U (en) * | 2017-04-23 | 2017-12-19 | 崔明月 | A kind of wind wheel blade Hybrid Heating deicing system |
| CN109505729A (en) * | 2017-09-14 | 2019-03-22 | 西门子歌美飒可再生能源公司 | Wind turbine blade with cover plate for hot air exhaust shielding for deicing and/or anti-icing |
| CN212296729U (en) * | 2020-08-31 | 2021-01-05 | 昆明理工大学 | Fan blade defroster |
| CN215979716U (en) * | 2021-03-31 | 2022-03-08 | 西安热工研究院有限公司 | Automatic anti-icing defroster of fan blade |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623150A (en) * | 2021-09-08 | 2021-11-09 | 叶县国博大石崖风力发电有限公司 | Blade deicing mechanism for wind driven generator |
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| PB01 | Publication | ||
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Application publication date: 20210611 |