CN115478998A - Wind turbine generator system blade inner cavity gas thermal cycle deicing system - Google Patents

Wind turbine generator system blade inner cavity gas thermal cycle deicing system Download PDF

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Publication number
CN115478998A
CN115478998A CN202211309309.XA CN202211309309A CN115478998A CN 115478998 A CN115478998 A CN 115478998A CN 202211309309 A CN202211309309 A CN 202211309309A CN 115478998 A CN115478998 A CN 115478998A
Authority
CN
China
Prior art keywords
inner cavity
blade
wind turbine
heater
cavity
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Pending
Application number
CN202211309309.XA
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Chinese (zh)
Inventor
董礼
李维
田祥
向波
李胜
张上
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CGN Wind Energy Ltd
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CGN Wind Energy Ltd
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Filing date
Publication date
Application filed by CGN Wind Energy Ltd filed Critical CGN Wind Energy Ltd
Priority to CN202211309309.XA priority Critical patent/CN115478998A/en
Publication of CN115478998A publication Critical patent/CN115478998A/en
Priority to PCT/CN2023/124754 priority patent/WO2024088094A1/en
Pending legal-status Critical Current

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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
    • F03D80/40—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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • 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)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Wind Motors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention discloses a wind turbine generator blade inner cavity gas thermal cycle deicing system, wherein a partition plate is arranged in a blade inner cavity and divides the blade inner cavity into a hot gas cavity and a backflow cavity, a baffle plate is arranged in the middle of the hot gas cavity and divides the hot gas cavity into a front edge inner cavity and a root inner cavity, a centrifugal fan and a heater pipe are both arranged at the blade root position in the root inner cavity, the centrifugal fan is connected with a heater, the heater penetrates through the baffle plate through a hot gas pipeline and is communicated with the front edge inner cavity, and the front edge inner cavity is communicated with the backflow cavity. The invention has the beneficial effects that: the centrifugal fan and the heater generate hot air to heat the inner cavity of the blade, then the hot air returns to the inner cavity of the web plate or the inner cavity of the rear edge through the film combining channel of the blade tip and finally returns to the suction inlet of the blade root fan to be heated circularly again, the temperature of the inner cavity of the blade is saturated circularly, the electric equipment is externally connected through the slip ring, the main power of the original system of the fan is not influenced, the centrifugal fan is provided with the filter screen, and air impurities are prevented from entering the heater to influence the normal work of the heater.

Description

Wind turbine generator system blade inner cavity gas thermal cycle deicing system
Technical Field
The invention relates to the technical field of deicing of blades of wind turbines, in particular to a gas-heat circulation deicing system for inner cavities of blades of a wind turbine.
Background
Wind power generation is an important component of modern clean energy, meets the requirement of energy cleanliness under the background of climate change, and is an indispensable energy source for human development. The wind power generation in China keeps higher growth under the support of policies, but the high-altitude temperature is below zero degree in winter, and the obvious icing phenomenon can occur on the surface of the wind turbine blade. Icing on the surface of a blade of the wind turbine can cause reduction of power generation efficiency (from 10% to 50% different), shutdown of the wind turbine, influence of automatic control, safety accidents caused by ice block falling off and other problems, so that the operation of the wind turbine is directly influenced. To address the above issues, the prior art discloses several deicing schemes:
coating anti-icing (coating): the passive deicing method changes the physical properties of the surface of the blade by brushing (spraying) the hydrophobic coating on the surface of the blade, and can prevent ice or water from adhering to the surface of an object to a certain extent due to the anti-adhesion characteristic of the hydrophobic coating. At present, more and more researches are developed towards the nano composite material coating, the surface performance of the polymer is enhanced through nano particles, and the contact angle (hydrophobic angle) of the nano composite material and water is very large, so that blade icing can be prevented or relieved. The technical route comprises three technical schemes: 1) New blade production processes incorporate anti-icing coatings (specific environmental areas); 2) Old blades are put on the tower or manually brushed with an anti-icing coating; 3) The integrated platform of the unmanned aerial vehicle sprays an anti-icing coating; the scheme has the problems that the bonding property and the wear resistance of the coating are poor, the material property degradation is obvious, frequent repair is needed, and the later maintenance cost is high.
Deicing agent (deicing agent): an operator or an automatic flight system sends the unmanned aerial vehicle carrying a certain weight of ice melting agent or carrying a spraying pipeline to the vicinity of the icing blade, the icing position of the blade is found through a high-definition image, the agent spraying system is triggered manually or automatically to spray the ice melting agent to the icing point, and after the deicing is finished, the unmanned aerial vehicle finds the next icing position for operation until the three blades are completely covered with ice. The technical route has three technical schemes: 1) The unmanned aerial vehicle integrated platform cruise sprays deicing agent; 2) The cabin is provided with an ice remover for spraying the deicing agent for deicing. 3) A deicing agent pipe is laid on the tower cylinder and is fixedly sprayed for deicing. The problems with this solution are: personnel can only operate the electric fan when the electric fan reaches the vicinity of the electric fan, and the electric fan is difficult to ascend or cannot ascend on the mountain in icy weather; the weight of the deicing agent carried by the unmanned aerial vehicle is limited, and the endurance time under extreme weather conditions is short.
Surface heating and layering (electric heating): the blade is embedded with an electric heating element (such as a heating film, carbon fiber and the like), when the blade is frozen, the electric heating element raises the temperature of the surface of the blade, so that a layer of water film is formed between an ice layer and the surface of the blade, the accumulated ice is thrown out through centrifugal force, or the electric heating element is started when the blade is about to be frozen, the blade is prevented or relieved from being frozen, and the effect of removing (preventing) the ice is achieved. The scheme is suitable for new machine projects and is not suitable for technical improvement projects; moreover, lightning is easy to be induced, and special lightning protection treatment must be carried out on the blade; the electric heating element has large coverage limitation on the surface of the blade and poor later maintainability.
Inner cavity hot air (gas heat): the hot air system consisting of the heater, the ventilator and the heat conduction pipe is arranged in the blade cavity (hub), after the blades are frozen, the ventilator enables heated air to be delivered into the blades through the heat conduction pipe, heat flow circulation is formed, the whole blades are uniformly heated, the hot air system uniformly heats the blades to be above zero, accumulated ice is thrown out through centrifugal force, or the hot air system is started when the blades are to be frozen, the blades are prevented or relieved from being frozen, and therefore the ice removing (preventing) effect is achieved. (blading de-icing, blower → heater-heat pipe, blading flow channel continuity test, icing monitoring). The problem of the existence of this scheme is that blade material heat conductivity itself is poor, and the heating coverage is incomplete, and the effect is not obvious, and hot air system easily causes blade internals ageing, needs regular maintenance to examine and change, and the later maintenance is with high costs.
Microwave or electromagnetic induction deicing: the microwave or electromagnetic transmitting device is arranged near the blade to transmit the microwave or remove the ice through electromagnetic induction, and the manufacturing cost and the ice removing effect are not obvious, so that no example is seen at present.
For example, the Chinese patent discloses an internal circulation type gas-heated deicing device (application number: CN 202120914533.6), which comprises at least one group of internal circulation type gas-heated deicing mechanisms, wherein at least one group of internal circulation type gas-heated deicing mechanisms is arranged in a cavity of a deicing part corresponding to a blade; internal-loop formula gas heat deicing mechanism includes first baffle, gas heat output part and return air duct, first baffle setting is in the cavity for separate into the first room that is close to the blade root with the cavity and be close to the second room of blade point portion, gas heat output part's main part sets up in first indoor, and it is indoor that its output passes and inserts the second behind the first baffle, the one end of return air duct is located the second indoor, and the other end passes and inserts first indoor behind the first baffle. The problem of icing on the surface of the blade can be effectively prevented, and energy-saving and efficient deicing can be realized.
2. A gas-heated de-icing device for fan blades (application number: CN 202122078013.9) comprises a blade body, a gas driving piece, a heater and a heat conducting pipe; the blade body is provided with an inner cavity, the gas flow driving piece, the heater and the heat conduction pipe are arranged in the inner cavity, and the heater is connected between the gas flow driving piece and the heat conduction pipe; the gas drives the piece and blows the hot gas flow that the heater heating produced and circulate in the heat-conducting pipe, can make the overall structure of blade main part keep higher temperature, can detach the icing on the blade, avoids the blade fracture, can also reduce the generated electricity power loss of wind-powered electricity generation field.
Although the prior art discloses some inner chamber gas-thermal modes deicing, the heat conductivity of blade material itself is poor, the heating coverage is incomplete, the effect is not obvious, and hot air system easily causes blade internal component ageing, need regularly maintain to examine and change, and the later maintenance cost is high.
Therefore, the need of providing a wind turbine blade inner cavity gas thermal cycle deicing system is needed for the problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a wind turbine generator blade inner cavity gas thermal cycle deicing system to solve the problems.
The utility model provides a wind turbine generator system blade inner chamber gas thermal cycle deicing system, its system installs heating device in every blade inner chamber, and every heating device all includes centrifugal fan, heater, hot gas pipeline, baffle and baffle, the baffle is arranged in the blade inner chamber and is divided into hot gas chamber and backward flow chamber with the blade inner chamber, the baffle is installed at the middle part position of hot gas chamber and is separated the hot gas chamber for leading edge inner chamber and root inner chamber, the blade root position at the root inner chamber is all installed to centrifugal fan and heater pipe, centrifugal fan and heater connection, the heater runs through in the baffle and with leading edge inner chamber intercommunication through hot gas pipeline, leading edge inner chamber and backward flow chamber intercommunication, the filter screen is installed to centrifugal fan's inlet duct mouth.
Preferably, a temperature and humidity sensor is further mounted on the inner wall of the inner cavity of the blade.
Preferably, centrifugal fan, heater and temperature and humidity sensor all connect in the blade root switch board, the blade root switch board passes through power distribution box and connects the sliding ring.
Preferably, the slip ring is respectively connected with the main control cabin cabinet and the tower footing cabinet, and the tower footing cabinet is respectively connected with the main tower footing cabinet and the box-type transformer.
Preferably, each blade root control cabinet is connected through 485 lines.
Preferably, the blade root control cabinet is installed at the root position of the blade inner cavity.
Preferably, the tower footing cabinet and the main control tower footing cabinet are installed at the bottom of the wind turbine base.
Preferably, the slip ring is provided with a plurality of power supply and communication channels.
Preferably, the power supply and communication channel comprises a blade deicing power supply three-phase 690VAC, a blade deicing CAN communication and a 220VAC heating control power supply.
Preferably, a plurality of sets of axial flow fan blades are arranged in the centrifugal fan.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, hot air generated by the centrifugal fan and the heater heats the inner cavity of the blade, returns to the inner cavity of the web plate or the inner cavity of the trailing edge through the film combining channel of the blade tip, and finally returns to the suction inlet of the blade root fan for cyclic heating again, so that the temperature of the inner cavity of the blade is saturated circularly, and the novel slip ring is externally connected with electrical equipment, so that the main power of the original system of the fan is not influenced, the novel slip ring has a normal communication function, and the communication of the original system is not influenced; the filter screen is installed to centrifugal fan's inlet duct mouth, avoids air impurity to get into and influences centrifugal fan and heater's normal work in centrifugal fan and the heater.
Drawings
FIG. 1 is a diagram of a wind turbine blade cavity gas thermal cycle deicing system provided by the invention;
FIG. 2 is a schematic view of the interior of the centrifugal fan structure of the present invention;
FIG. 3 is a system schematic of the present invention;
fig. 4 is a diagram of a wind turbine generator according to the present invention.
Reference numbers in the figures: 1. the inner cavity of the blade; 2. a centrifugal fan; 3. a heater; 4. a hot gas line; 5. a baffle plate; 6. a partition plate; 7. a hot air chamber; 8. a reflux cavity; 9. root lumen; 10. a leading edge cavity; 11. a blade; 12. a blade root control cabinet; 13. a power distribution box; 14. a slip ring; 15. a main control cabin cabinet; 16. a tower footing cabinet; 17. a main control tower footing cabinet; 18. a box-type transformer; 19. a wind turbine base; 20. an air inlet pipe orifice; 22. a filter screen; 23. axial flow fan blades.
Detailed Description
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. 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 otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 and fig. 2 to 4, in a thermal cycle deicing system for blade inner cavities of a wind turbine generator, a heating device is installed in a blade inner cavity 1 of each blade, each heating device includes a centrifugal fan 2, a heater 3, a hot air pipeline 4, a baffle 5 and a partition plate 6, the partition plate 6 is placed in the blade inner cavity 1 and divides the blade inner cavity 1 into a hot air cavity 7 and a return cavity 8, the baffle 5 is installed in the middle of the hot air cavity 7 and divides the hot air cavity 7 into a leading edge inner cavity 10 and a root inner cavity 9, the centrifugal fan 2 and the heater 3 are installed at the root position in the root inner cavity 9, the centrifugal fan 2 is connected with the heater 3, the heater 3 penetrates through the baffle 5 through the hot air pipeline 4 and is communicated with the leading edge inner cavity 10, the leading edge inner cavity 10 is communicated with the return cavity 8, and an air inlet pipe orifice 20 of the centrifugal fan 2 is provided with a filter screen 21.
Furthermore, a temperature and humidity sensor is also arranged on the inner wall (which can be arranged on the inner wall of the backflow cavity 8) of the blade inner cavity 1.
Further, centrifugal fan 2, heater 3 and temperature and humidity sensor all connect in blade root switch board 12, blade root switch board 12 passes through power distribution box 13 and connects sliding ring 14.
Further, the slip ring 14 is respectively connected with a main control cabin cabinet 15 and a tower base cabinet 16, and the tower base cabinet 16 is respectively connected with a main tower base cabinet 17 and a box-type transformer 18.
Further, each blade root control cabinet 12 is connected with the CAN through a 485 line.
Further, the blade root control cabinet 12 is installed at the root position of the blade inner cavity 1.
Further, the tower footing cabinet 16 and the main control tower footing cabinet 17 are installed at the bottom of the wind turbine base 19.
Further, the slip ring 14 is provided with a plurality of power supply and communication channels.
Further, the power supply and communication channel comprises a blade deicing power supply three-phase 690VAC, a blade deicing CAN communication and a 220VAC heating control power supply.
Further, a plurality of sets of axial flow fan blades 22 are arranged in the centrifugal fan 2. The multiple sets of axial flow fan blades 22 increase the wind power, thereby increasing the heating speed, and in addition, one of the axial flow fan blades is damaged, so that the whole work cannot be influenced.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, hot air generated by a centrifugal fan 2 and a heater 3 heats an inner cavity 1 of a blade, then returns to an inner cavity of a web plate or an inner cavity of a rear edge through a film combining channel of a blade tip, and finally returns to a suction inlet of a blade root fan for circular heating again, so that the temperature of the inner cavity 1 of the blade is saturated circularly, an electrical device is externally connected through a slip ring 14, the main power of an original system of the fan is not influenced, the fan has a normal communication function, the communication of the original system is not influenced, a filter screen 21 is arranged at an air inlet pipe orifice 20 of the centrifugal fan 2, and air impurities are prevented from entering the centrifugal fan and the heater to influence the normal work of the centrifugal fan and the heater.
The working principle is as follows: baffle 5 installs the middle part position at hot air chamber 7 and separates hot air chamber 7 for leading edge inner chamber 9 and root inner chamber 10, and centrifugal fan 2 and heater 3 are all installed in the root inner chamber 10 of hot air chamber 7, and centrifugal fan 2 is connected with heater 3, and heater 3 runs through in baffle 5 and communicates with leading edge inner chamber 9 through hot gas pipeline 4, leading edge inner chamber 9 and backward flow chamber 8 intercommunication.
During operation, the centrifugal fan 2 and the heater 3 start to work to generate hot air, the hot air is transmitted to the front edge inner cavity 9 through the hot air pipeline 4, then enters the backflow cavity 8 and returns to the root inner cavity 10 to flow circularly all the time, and the blades are heated to remove ice and prevent ice.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The utility model provides a wind turbine generator system blade inner chamber gas thermal cycle deicing system which characterized in that: the system is characterized in that a heating device is installed in a blade inner cavity (1) of each blade, each heating device comprises a centrifugal fan (2), a heater (3), a hot air pipeline (4), a baffle (5) and a partition plate (6), the partition plate (6) is arranged in the blade inner cavity (1) and divides the blade inner cavity (1) into a hot air cavity (7) and a backflow cavity (8), the baffle (5) is installed in the middle of the hot air cavity (7) and separates the hot air cavity (7) into a front edge inner cavity (10) and a root inner cavity (9), the centrifugal fan (2) and the heater (3) are both installed at the root position in the root inner cavity (9), the centrifugal fan (2) is connected with the heater (3), the heater (3) penetrates through the baffle (5) through the hot air pipeline (4) and is communicated with the front edge inner cavity (10), the front edge inner cavity (10) is communicated with the backflow cavity (8), and a filter screen (21) is installed on an air inlet pipe orifice (20) of the centrifugal fan (2).
2. The wind turbine generator blade inner cavity gas thermal cycle deicing system according to claim 1, wherein: and a temperature and humidity sensor is also arranged in the inner wall of the blade inner cavity (1).
3. The wind turbine generator blade inner cavity gas thermal cycle deicing system according to claim 1, wherein: centrifugal fan (2), heater (3) and temperature and humidity sensor all connect in blade root switch board (12), slip ring (14) are connected through power distribution box (13) in blade root switch board (12).
4. The wind turbine generator blade inner cavity gas thermal cycle deicing system of claim 3, wherein: the slip ring (14) is respectively connected with a main control cabin cabinet (15) and a tower foundation cabinet (16), and the tower foundation cabinet (16) is respectively connected with a main tower foundation cabinet (17) and a box-type transformer (18).
5. The wind turbine generator blade inner cavity gas thermal cycle deicing system of claim 3, wherein: and each blade root control cabinet (12) is connected with each other through 485 lines.
6. The wind turbine generator blade inner cavity gas thermal cycle deicing system of claim 3, wherein: and the blade root control cabinet (12) is arranged at the root position of the blade inner cavity (1).
7. The wind turbine generator blade inner cavity gas thermal cycle deicing system of claim 4, wherein: the tower foundation cabinet (16) and the main control tower foundation cabinet (17) are installed at the bottom of the wind turbine base (19).
8. The wind turbine generator blade inner cavity gas thermal cycle deicing system according to claim 3, wherein: the slip ring (14) is provided with a plurality of power supply and communication channels.
9. The wind turbine generator blade inner cavity gas thermal cycle deicing system according to claim 8, wherein: the power supply and communication channel comprises a blade deicing power supply three-phase 690VAC, blade deicing CAN communication and a 220VAC heating control power supply.
10. The wind turbine generator blade inner cavity gas thermal cycle deicing system of claim 1, wherein: and a plurality of groups of axial flow fan blades (22) are arranged in the centrifugal fan (2).
CN202211309309.XA 2022-10-25 2022-10-25 Wind turbine generator system blade inner cavity gas thermal cycle deicing system Pending CN115478998A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202211309309.XA CN115478998A (en) 2022-10-25 2022-10-25 Wind turbine generator system blade inner cavity gas thermal cycle deicing system
PCT/CN2023/124754 WO2024088094A1 (en) 2022-10-25 2023-10-16 Inner-cavity air heat circulation deicing system for wind turbine blade

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Application Number Priority Date Filing Date Title
CN202211309309.XA CN115478998A (en) 2022-10-25 2022-10-25 Wind turbine generator system blade inner cavity gas thermal cycle deicing system

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CN115478998A true CN115478998A (en) 2022-12-16

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WO2024088094A1 (en) * 2022-10-25 2024-05-02 中广核风电有限公司 Inner-cavity air heat circulation deicing system for wind turbine blade

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CN105626370B (en) * 2014-10-30 2018-02-16 株洲时代新材料科技股份有限公司 A kind of anti-ice wind electricity blade structure
CN107620681A (en) * 2017-10-23 2018-01-23 北京金风科创风电设备有限公司 Heating control system and method for blade of wind generating set
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CN212672003U (en) * 2020-06-12 2021-03-09 浙江运达风电股份有限公司 Heat-preserving deicing system for blades of hot blast wind turbine generator
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CN115478998A (en) * 2022-10-25 2022-12-16 中广核风电有限公司 Wind turbine generator system blade inner cavity gas thermal cycle deicing system
CN115450865A (en) * 2022-10-27 2022-12-09 中广核风电有限公司 Anti-icing system for blades of wind turbine generator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024088094A1 (en) * 2022-10-25 2024-05-02 中广核风电有限公司 Inner-cavity air heat circulation deicing system for wind turbine blade

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