CN114109745A - Quick connecting mechanism of megawatt wind-powered electricity generation blade lightning protection system - Google Patents
Quick connecting mechanism of megawatt wind-powered electricity generation blade lightning protection system Download PDFInfo
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- CN114109745A CN114109745A CN202111473710.2A CN202111473710A CN114109745A CN 114109745 A CN114109745 A CN 114109745A CN 202111473710 A CN202111473710 A CN 202111473710A CN 114109745 A CN114109745 A CN 114109745A
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- 230000005611 electricity Effects 0.000 title claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052802 copper Inorganic materials 0.000 claims abstract description 29
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- 238000000034 method Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000001681 protective effect Effects 0.000 claims description 28
- 239000002390 adhesive tape Substances 0.000 claims description 15
- 239000011152 fibreglass Substances 0.000 claims description 13
- 238000009434 installation Methods 0.000 claims description 13
- 238000002955 isolation Methods 0.000 claims description 12
- 239000004020 conductor Substances 0.000 claims description 8
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- 238000003672 processing method Methods 0.000 claims description 5
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- 238000009472 formulation Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 238000000016 photochemical curing Methods 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims 1
- 238000010079 rubber tapping Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 5
- 208000025274 Lightning injury Diseases 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/30—Lightning protection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0025—Producing blades or the like, e.g. blades for turbines, propellers, or wings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a rapid connecting mechanism of a megawatt wind blade lightning protection system, which comprises a branch cable, wherein one end of the branch cable is provided with a connecting copper column, the other end of the branch cable is fixedly connected with an H-shaped doubling clamp, the H-shaped doubling clamp is connected with the branch cable and a main cable, the bottom of the outer wall of the connecting copper column is in threaded connection with a flow guide body, the connecting mechanism has reasonable structural design, convenient operation, low cost and good connecting effect, can not damage a lightning receptor and damage a blade structure layer, has good connecting quality, only needs a small amount of adhesive for fixing during die assembly, can be completed by matching the lightning receptor connecting piece with a component, does not need to use an electric drill for perforating and tapping after demoulding, avoids damaging the blade structure layer, can save a large amount of labor, cancels the use of a metal detector and reduces the equipment investment, the method can be widely applied to the operation of the lightning protection system of the large fan blade.
Description
Technical Field
The invention relates to the technical field of wind power blade manufacturing, in particular to a quick connecting mechanism of a megawatt wind power blade lightning protection system.
Background
With the gradual exhaustion of non-renewable energy resources on the earth, the importance of renewable energy resources is recognized worldwide, and high attention is paid to the development of the wind power industry. As the most important part in the wind turbine, the blade plays an irreplaceable role in the wind turbine, and a wind turbine blade with excellent design, reliable quality and high efficiency is a key factor for ensuring the normal operation of the whole wind turbine.
In recent years, wind power generation is rapidly developed, the height of a tower barrel and the diameter of a blade are gradually increased along with the gradual increase of the output power of a wind turbine, but the risk of lightning stroke of the wind turbine is increased at the same time, so that the reliable and effective connection of a lightning protection system plays an important role in a wind turbine set.
The lightning protection system of the wind power blade is optimized to be a visual mechanical connection mode, the risk of lightning stroke of a wind turbine unit can be effectively reduced, and a good foundation is improved for a follow-up large-size and large-megawatt blade profile; installing the arrester after the drawing of patterns, there is the difference in the metal detector looks for the arrester mid point in sandwich structure, uses the electric drill trompil to destroy the structural layer of blade simultaneously to use manual tapping, can't guarantee tapping quality and drill bit trompil in-process and to the damage on arrester surface will bury certain hidden danger down to subsequent lightning protection, there are a lot of blind area operations and hidden dangers in the connection and the installation of current lightning protection system, can't guarantee to connect installation reliability.
The connection change and the installation mode of the lightning protection system are optimized, the lightning protection system is not applied to a composite material fan blade lightning protection system at present, lightning protection system lightning receptors are difficult to distribute and design on PS and SS surfaces, and the application is limited, so that a megawatt-level wind turbine blade lightning protection system quick connection mechanism is provided.
Disclosure of Invention
The invention aims to provide a quick connecting mechanism of a megawatt wind turbine blade lightning protection system, which can realize quick connection of the lightning protection system under the condition of not damaging a blade structural layer.
The second purpose of the invention is to provide a positioning structure of the quick connecting mechanism of the megawatt wind power blade lightning protection system.
The third purpose of the invention is to provide a mold closing processing method of the megawatt wind turbine blade after the lightning protection system quick connecting mechanism is applied.
The fourth purpose of the invention is to provide a connecting method of the lightning protection system of the megawatt wind turbine blade processed by the processing method.
In order to solve the problems, the invention adopts the following technical scheme:
the utility model provides a megawatt level wind-powered electricity generation blade lightning protection system quick coupling mechanism, includes branch cable conductor, the connection copper post is installed to branch cable conductor's one end, and branch cable conductor's other end fixedly connected with H type cable conductor and fastener, H type cable conductor and main cable conductor are connected to the fastener, connect copper post outer wall bottom threaded connection and have the baffle, and the baffle matches with arrester thread end, connection copper post upper end threaded connection has the protective sheath.
The utility model provides a megawatt level wind-powered electricity generation blade lightning protection system quick connect mechanism's location structure, supports and the isolating ring including the arrester, and the arrester supports and all sets up in blade mould inboard with the isolating ring, the blade mould includes blade mould PS face casing and blade mould SS face casing, the arrester supports fixed connection in blade mould PS face casing inboard, isolating ring fixed connection corresponds arrester mounted position department in blade mould SS face casing inboard.
As a preferable scheme of the present invention, the lightning receptor support and isolation ring and the PS surface shell and the SS surface shell of the blade mold are fixedly connected by an adhesive tape.
As a preferred scheme of the invention, the adhesive tape on the outer side of the isolation ring is a slow-formulation adhesive, and the outer side of the adhesive tape on the outer side of the isolation ring is provided with a round angle.
As a preferable scheme of the invention, the slow-formulation adhesive is an epoxy resin adhesive.
As a preferable scheme of the invention, the slow-formulation adhesive is UV (ultraviolet) photocuring glue.
In a preferred embodiment of the present invention, the isolation ring and the outer end surface of the protective sleeve are in the same plane.
As a preferable scheme of the invention, the isolating ring and the protective sleeve are both made of nylon materials.
A mold closing processing method of a megawatt wind power blade comprises the following steps:
step a, removing a lightning receptor on the surface of a shell in a SS surface shell of a blade mould, installing demolding cloth on the surface of pure glass fiber reinforced plastic, fixing an isolation ring at the center of the stripping cloth by using an adhesive, and smearing the adhesive on the peripheral area of the isolation ring to form an adhesive tape so as to realize positioning and fixing of the lightning receptor;
b, screwing the flow guide body through the threaded end of the connecting copper column, and screwing the protective sleeve into the position of the connecting copper column through the threaded end to achieve the effects of smooth transition and thread protection of the transition position of the lightning arrester;
c, after the adhesive tape on the outer side of the isolating ring is cured, completely plugging the protective sleeve into the isolating ring, wherein the isolating ring and the end face of the protective sleeve are positioned on the same plane, and the protective sleeve plays a role in protecting the connecting copper column and the isolating ring and positioning the lightning receptor;
d, connecting the branch cable with the main cable by using an H-shaped doubling clamp;
and e, injecting glass fiber reinforced plastics between the PS surface shell and the SS surface shell of the blade mould, and cooling and forming the glass fiber reinforced plastics.
A connection method of a megawatt wind turbine blade lightning protection system comprises the following steps:
s1, after demolding, finding out the installation position of the lightning arrester;
s2, removing the glass fiber reinforced plastic on the surface of the lightning receptor installation position;
s3, unscrewing the protective sleeve by using a wrench;
and S4, directly screwing the outer lightning receptor into the position of the connecting copper column.
Compared with the prior art, the invention has the advantages that:
(1) the connecting mode of the wind blade lightning protection system provided by the invention has the advantages of reasonable structural design, convenience in operation, low cost, good connecting effect, no damage to the lightning receptor and damage to the blade structure layer, and better connecting quality, only a small amount of adhesive is needed for fixing in the die assembly process, the lightning receptor connecting piece can be completed only by being matched with the assembly, after demolding, the hole opening and tapping of an electric drill are not needed, the damage to the blade structure layer is avoided, only a wrench is needed for taking down the protective sleeve, and the lightning receptor screwing-in can be completed.
(2) The quick connecting structure for the lightning protection component of the megawatt wind blade provided by the invention has the advantages of reasonable whole process design, strong operability, high working efficiency and low cost, the connection quality of the lightning protection system can be ensured, the lightning risk of the blade is reduced, and the overall performance of the wind blade can be improved.
Drawings
FIG. 1 is a schematic view of a positioning structure of a quick connection mechanism of the invention when a wind blade is clamped.
FIG. 2 is a schematic view of the lightning receptor connection structure of the wind blade after demoulding according to the present invention.
The reference numbers in the figures illustrate:
1. branch cable lines; 2. a lightning receptor support; 3. an isolating ring; 4. gluing a tape; 5. connecting the copper columns; 6. a flow conductor; 7. a protective sleeve; 8. h-shaped wire doubling clamps; 9. a blade mold PS surface shell; 10. blade mold SS faces the shell.
Detailed Description
The technical solution 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. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
referring to fig. 1-2, a quick connection mechanism for a megawatt wind blade lightning protection system includes a branch cable 1, a connecting copper column 5 is installed at one end of the branch cable 1, an H-shaped doubling clamp 8 is fixedly connected to the other end of the branch cable 1, the H-shaped doubling clamp 8 connects the branch cable 1 and a main cable, a flow guide body 6 is connected to the bottom of the outer wall of the connecting copper column 5 through a thread, the flow guide body 6 is matched with a threaded end of a lightning receptor, and a protective sleeve 7 is connected to the upper end of the connecting copper column 5 through a thread.
The flow guide body 6 is directly matched with the threaded end of the lightning receptor and is used for transition between the outer side lightning receptor and the inner side connecting terminal;
the protective sleeve 7 is directly matched with the threaded end of the branch cable 1 and is used for preventing sundries from influencing the threads of the connecting copper column 5 and ensuring the installation of the outside lightning receptor;
the utility model provides a megawatt level wind-powered electricity generation blade lightning protection system quick connect mechanism's location structure, supports 2 and isolating ring 3 including the arrester, and the arrester supports 2 and isolating ring 3 and all sets up in blade mould inboard, and the blade mould includes blade mould PS face casing 9 and blade mould SS face casing 10, and the arrester supports 2 fixed connection in 9 insides of blade mould PS face casing, and 3 fixed connection of isolating ring correspond arrester mounted position departments in 10 insides of blade mould SS face casing.
Specifically, the lightning receptor support 2 and the isolating ring 3 are fixedly connected with the PS surface shell 9 and the SS surface shell 10 of the blade mould through the adhesive tapes 4.
Specifically, the adhesive tape 4 on the outer side of the isolation ring 3 is a slow-formula adhesive, and a fillet is arranged on the outer side of the adhesive tape 4 on the outer side of the isolation ring 3.
Specifically, the slow-formula adhesive is one of an epoxy resin adhesive and UV (ultraviolet) light curing adhesive, the epoxy resin adhesive has a long solidification period, the position of the isolating ring is convenient to adjust, the solidified structural strength is high, the polishing processing is convenient, the operating gap of the UV light curing adhesive is longer, the position of the isolating ring can be adjusted more accurately, and the mounting precision of the isolating ring is improved.
Specifically, the outer end faces of the isolating ring 3 and the protecting sleeve 7 are in the same plane.
Specifically, the isolating ring 3 and the protecting sleeve 7 are made of nylon materials.
The invention ensures the reliability of mechanical installation and electrical connection according to the design and manufacture of the fan blade, the connection installation mode of punching and tapping in the front is purely manual operation, the reliability of the connection of the lightning protection system is not 100 percent, the isolating ring 3 is used to prevent sundries (resin and adhesive from entering the installation position of the lightning receptor) to play a role of protection by optimizing each part of the lightning protection system, the lightning receptor uses the protective sleeve 7 to be in threaded fit with the connecting copper column 5 in the mold closing process, the threads of the connecting copper column 5 can be protected, the threads of the connecting copper column 5 in the installation process of the lightning receptor after demolding are prevented from being damaged, the copper column 5 is in fit connection with the flow guide body 6 to optimize the sudden change connection of the original lightning receptor into smooth transition connection, the flow guide effect of lightning stroke suffered by the wind turbine is improved, because the protective sleeve 7 is installed at the pure glass fiber reinforced plastic position in the mold closing process, directly just can find protective sheath 7's position behind the drawing of patterns, use the polisher to get rid of the glass steel on arrester surface, protective sheath 7 exposes the back, directly uses the spanner to get rid of protective sheath 7, replaces for the arrester, and this mounting means is convenient, swift, can guarantee again that the reliability that the arrester is connected improves greatly, still reducible damage to the blade.
A mold closing processing method of a megawatt wind power blade comprises the following steps:
step a, removing a lightning receptor on the surface of an inner shell of a SS surface shell 10 of a blade mould, installing demolding cloth on the surface of pure glass fiber reinforced plastic, fixing an isolation ring 3 at the right center of the torn demolding cloth by using an adhesive, and coating the adhesive on the peripheral area of the isolation ring 3 to form an adhesive tape 4 so as to realize positioning and fixing of the lightning receptor;
b, screwing the flow guide body 6 into the connecting copper column 5 through the threaded end, and screwing the protective sleeve 7 into the connecting copper column 5 through the threaded end to achieve the effects of smooth transition and thread protection of the transition position of the lightning arrester;
step c, after the adhesive tape 4 on the outer side of the isolating ring 3 is cured, the protecting sleeve 7 is completely plugged into the isolating ring 3, the end faces of the isolating ring 3 and the protecting sleeve 7 are positioned on the same plane, and the protecting sleeve 7 plays a role in protecting the connecting copper column 5 and the isolating ring 3 and positioning the lightning arrester;
d, connecting the branch cable with the main cable by using an H-shaped parallel clamp 8;
and e, injecting glass fiber reinforced plastics between the PS surface shell 9 and the SS surface shell 10 of the blade mould, and cooling and forming the glass fiber reinforced plastics.
A connection method of a megawatt wind turbine blade lightning protection system comprises the following steps:
s1, after demolding, finding out the installation position of the lightning arrester;
s2, removing the glass fiber reinforced plastic on the surface of the lightning receptor installation position;
s3, unscrewing the protective sleeve 7 by using a wrench;
and S4, directly screwing the outer lightning receptor into the position of the connecting copper pillar 5.
The connecting mode of the wind blade lightning protection system provided by the invention has the advantages of reasonable structural design, convenience in operation, low cost, good connecting effect, no damage to the lightning receptor and damage to the blade structure layer, and better connecting quality, only a small amount of adhesive is needed for fixing in the die assembly process, the lightning receptor connecting piece can be completed only by being matched with the assembly, after demolding, the hole opening and tapping of an electric drill are not needed, the damage to the blade structure layer is avoided, only the protective sleeve 7 is taken down by using a wrench, and the lightning receptor can be screwed in to finish the operation.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the equivalent replacement or change according to the technical solution and the modified concept of the present invention should be covered by the scope of the present invention.
Claims (10)
1. The utility model provides a megawatt level wind-powered electricity generation blade lightning protection system quick connect mechanism, includes branch cable conductor (1), its characterized in that: connect copper post (5) is installed to the one end of branch cable line (1), and the other end fixedly connected with H type and fastener (8) of branch cable line (1), branch cable line (1) and main cable line are connected in H type and fastener (8), it has baffle (6) to connect copper post (5) outer wall bottom threaded connection, and baffle (6) and meet the match of sudden strain of a muscle thread end, it has protective sheath (7) to connect copper post (5) upper end threaded connection.
2. The utility model provides a megawatt level wind-powered electricity generation blade lightning protection system quick connect mechanism's location structure which characterized in that: including the arrester support (2) and isolating ring (3), and the arrester supports (2) and isolating ring (3) and all sets up in blade mould inboard, the blade mould includes blade mould PS face casing (9) and blade mould SS face casing (10), the arrester supports (2) fixed connection in blade mould PS face casing (9) inboard, isolating ring (3) fixed connection corresponds arrester mounted position department in blade mould SS face casing (10) inboard.
3. The positioning structure of the quick connection mechanism of the megawatt wind turbine blade lightning protection system according to claim 2, wherein: the lightning arrester support (2), the isolating ring (3), the blade mould PS surface shell (9) and the blade mould SS surface shell (10) are fixedly connected through the adhesive tape (4).
4. The positioning structure of the quick connection mechanism of the megawatt wind turbine blade lightning protection system according to claim 3, wherein: the adhesive tape (4) on the outer side of the isolating ring (3) is a slow-formula adhesive, and a round angle is arranged on the outer side of the adhesive tape (4) on the outer side of the isolating ring (3).
5. The positioning structure of the quick connection mechanism of the megawatt wind turbine blade lightning protection system according to claim 4, wherein: the slow-formulation adhesive is an epoxy resin adhesive.
6. The positioning structure of the quick connection mechanism of the megawatt wind turbine blade lightning protection system according to claim 4, wherein: the slow-formula adhesive is UV photocuring glue.
7. The positioning structure of the quick connection mechanism of the megawatt wind turbine blade lightning protection system according to claim 2, wherein: the outer end faces of the isolating ring (3) and the protective sleeve (7) are in the same plane.
8. The positioning structure of the quick connection mechanism of the megawatt wind turbine blade lightning protection system according to claim 2, wherein: the isolating ring (3) and the protective sleeve (7) are both made of nylon materials.
9. A mold closing processing method of a megawatt wind power blade is characterized by comprising the following steps:
a, removing a lightning arrester on the surface of an inner shell of a SS surface shell (10) of a blade mould, installing demolding cloth on the surface of pure glass fiber reinforced plastic, fixing an isolation ring (3) at the center of the torn demolding cloth by using an adhesive, and smearing the adhesive on the peripheral area of the isolation ring (3) to form an adhesive tape (4) to realize positioning and fixing of the lightning arrester;
b, screwing the flow guide body (6) through the threaded end of the connecting copper column (5), and screwing the protective sleeve (7) into the position of the connecting copper column (5) through the threaded end to achieve the effects of smooth transition and thread protection of the transition position of the lightning arrester;
c, after the adhesive tape (4) on the outer side of the isolating ring (3) is solidified, completely plugging the protective sleeve (7) into the isolating ring (3), wherein the end faces of the isolating ring (3) and the protective sleeve (7) are positioned on the same plane, and the protective sleeve (7) is used for protecting the connecting copper column (5) and the isolating ring (3) and positioning the lightning arrester;
d, connecting the branch cable with the main cable by using an H-shaped parallel clamp (8);
and e, injecting glass fiber reinforced plastics between the PS surface shell (9) and the SS surface shell (10) of the blade mould, and cooling and forming the glass fiber reinforced plastics.
10. A connection method of a megawatt wind turbine blade lightning protection system is characterized by comprising the following steps:
s1, after demolding, finding out the installation position of the lightning arrester;
s2, removing the glass fiber reinforced plastic on the surface of the lightning receptor installation position;
s3, unscrewing the protective sleeve (7) by using a wrench;
and S4, directly screwing the outer lightning receptor into the position of the connecting copper column (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111473710.2A CN114109745A (en) | 2021-11-30 | 2021-11-30 | Quick connecting mechanism of megawatt wind-powered electricity generation blade lightning protection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111473710.2A CN114109745A (en) | 2021-11-30 | 2021-11-30 | Quick connecting mechanism of megawatt wind-powered electricity generation blade lightning protection system |
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| CN114109745A true CN114109745A (en) | 2022-03-01 |
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| CN202111473710.2A Pending CN114109745A (en) | 2021-11-30 | 2021-11-30 | Quick connecting mechanism of megawatt wind-powered electricity generation blade lightning protection system |
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2021
- 2021-11-30 CN CN202111473710.2A patent/CN114109745A/en active Pending
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| US20200232444A1 (en) * | 2017-09-06 | 2020-07-23 | Vestas Wind Systems A/S | Device and method for performing retrofitting process on a wind turbine blade |
| CN110848096A (en) * | 2019-12-04 | 2020-02-28 | 北京金风科创风电设备有限公司 | Lightning protection lightning receiving device, fan blade and wind generating set |
| CN112677512A (en) * | 2020-11-20 | 2021-04-20 | 明阳智慧能源集团股份公司 | Method for installing and positioning outer surface part of blade of wind turbine generator |
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