CN103582758B - 风力涡轮机叶片和相关的制造方法 - Google Patents
风力涡轮机叶片和相关的制造方法 Download PDFInfo
- Publication number
- CN103582758B CN103582758B CN201280027058.4A CN201280027058A CN103582758B CN 103582758 B CN103582758 B CN 103582758B CN 201280027058 A CN201280027058 A CN 201280027058A CN 103582758 B CN103582758 B CN 103582758B
- Authority
- CN
- China
- Prior art keywords
- heating element
- blade
- conductor
- heating
- sides
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/04—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass turbine or like blades from several pieces
-
- 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
- F03D80/40—Ice detection; De-icing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/046—Synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2280/00—Materials; Properties thereof
- F05B2280/20—Inorganic materials, e.g. non-metallic materials
- F05B2280/2006—Carbon, e.g. graphite
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/49336—Blade making
- Y10T29/49337—Composite blade
Landscapes
- 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)
- Resistance Heating (AREA)
- Wind Motors (AREA)
- Surface Heating Bodies (AREA)
Abstract
Description
Claims (16)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20115536A FI20115536A7 (fi) | 2011-05-31 | 2011-05-31 | Tuuliturbiinin siipi ja tähän liittyvä valmistusmenetelmä |
FI20115536 | 2011-05-31 | ||
PCT/FI2012/050531 WO2012164167A1 (en) | 2011-05-31 | 2012-05-30 | Wind turbine blade and related method of manufacture |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103582758A CN103582758A (zh) | 2014-02-12 |
CN103582758B true CN103582758B (zh) | 2017-11-10 |
Family
ID=44071660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201280027058.4A Active CN103582758B (zh) | 2011-05-31 | 2012-05-30 | 风力涡轮机叶片和相关的制造方法 |
Country Status (9)
Country | Link |
---|---|
US (1) | US10632573B2 (zh) |
EP (1) | EP2715128B1 (zh) |
CN (1) | CN103582758B (zh) |
CA (1) | CA2837828C (zh) |
DK (1) | DK2715128T3 (zh) |
ES (1) | ES2632587T3 (zh) |
FI (1) | FI20115536A7 (zh) |
RU (1) | RU2591369C2 (zh) |
WO (1) | WO2012164167A1 (zh) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7439712B2 (en) * | 2006-02-21 | 2008-10-21 | Mccowen Clint | Energy collection |
EP2754891B1 (en) * | 2013-01-14 | 2017-05-17 | Siemens Aktiengesellschaft | Wind turbine rotor blade de-icing arrangement |
CN103963978A (zh) * | 2013-02-01 | 2014-08-06 | 中国航空工业集团公司西安飞机设计研究所 | 超声波与石墨复合除冰方法 |
DE202013007659U1 (de) * | 2013-08-29 | 2014-12-01 | Nordex Energy Gmbh | Windenergieanlagenrotorblatt mit einem elektrischen Heizelement |
CN105626370B (zh) * | 2014-10-30 | 2018-02-16 | 株洲时代新材料科技股份有限公司 | 一种抗冰风电叶片结构 |
FI10797U1 (fi) | 2014-12-04 | 2015-03-10 | Wicetec Oy | Johdinliitos kuparijohtimen kytkemiseksi |
EP3109465B1 (de) | 2015-06-26 | 2018-10-24 | Nordex Energy GmbH | Windenergieanlagenrotorblatt mit einer elektrischen heizeinrichtung |
EP3109466B1 (de) | 2015-06-26 | 2018-10-17 | Nordex Energy GmbH | Windenergieanlagenrotorblatt mit einer elektrischen heizeinrichtung |
EP3165761B1 (de) * | 2015-11-03 | 2019-05-22 | Nordex Energy GmbH | Windenergieanlagenrotorblatt mit einer elektrischen heizeinrichtung |
WO2017190748A1 (en) * | 2016-05-04 | 2017-11-09 | Vestas Wind Systems A/S | Improved electro-thermal heating |
EP3478959B1 (en) * | 2016-06-30 | 2022-06-22 | Vestas Wind Systems A/S | Busbars in a stacking arrangement |
WO2018017364A1 (en) | 2016-07-22 | 2018-01-25 | E. I. Du Pont De Nemours And Company | Thin-film heating device |
CN106468246A (zh) * | 2016-11-23 | 2017-03-01 | 四川大学 | 风力发电机的径向加热融冰叶片和融冰设备及其融冰方法 |
DK3577340T3 (da) * | 2017-02-06 | 2022-08-29 | Kjell Lindskog | Fremgangsmåde og opsætning i forbindelse med opvarmning af vinger i vindkraftværker |
CA3066694A1 (en) * | 2017-06-30 | 2019-01-03 | Vestas Wind Systems A/S | Improved electro-thermal heating elements |
US20190098703A1 (en) * | 2017-09-26 | 2019-03-28 | E I Du Pont De Nemours And Company | Heating elements and heating devices |
CN110195690B (zh) * | 2018-02-27 | 2023-03-24 | 新疆金风科技股份有限公司 | 叶片融冰装置、叶片及风力发电机组 |
CN110206694A (zh) * | 2019-06-20 | 2019-09-06 | 天津爱思普信息技术有限公司 | 一种风力发电机组叶片防冰除冰系统的导电带制作方法 |
EP3805551A1 (en) * | 2019-10-07 | 2021-04-14 | Siemens Gamesa Renewable Energy Innovation & Technology, S.L. | Wt blade with multiple electrical resistors for blade heating purposes |
EP3869035B1 (en) * | 2020-02-21 | 2022-11-30 | Siemens Gamesa Renewable Energy Innovation & Technology, S.L. | Blade for a rotor of a wind turbine and manufacturing method thereof |
EP3961026A1 (en) * | 2020-08-28 | 2022-03-02 | General Electric Renovables España S.L. | A rotor blade for a wind turbine |
WO2025008034A1 (en) * | 2023-07-05 | 2025-01-09 | Vestas Wind Systems A/S | Wind turbine blade shell with heating element |
EP4502362A1 (en) | 2023-08-04 | 2025-02-05 | Siemens Gamesa Renewable Energy Innovation & Technology S.L. | Wind turbine blade integrating an ice protection system and manufacturing method thereof |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB724745A (en) * | 1952-12-12 | 1955-02-23 | Wingfoot Corp | An electrically heated propeller de-icer |
US5971323A (en) * | 1996-11-27 | 1999-10-26 | Eurocopter | Resistive elements for heating an aerofoil, and device for heating an aerofoil incorporating such elements |
Family Cites Families (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2496279A (en) * | 1945-02-10 | 1950-02-07 | Safeway Heat Elements Inc | Flexible electric heater for deicing airfoils |
US2590944A (en) * | 1949-01-03 | 1952-04-01 | Napier & Son Ltd | Electrical heating apparatus |
US2686640A (en) * | 1951-04-13 | 1954-08-17 | Jr Carr B Neel | Thermal-electric means of airfoil ice prevention |
US2743890A (en) * | 1952-07-31 | 1956-05-01 | Goodrich Co B F | Electrically heated protective covering for aircraft |
US2884509A (en) * | 1957-03-05 | 1959-04-28 | Electrofilm Inc | Heating element containing a conductive mesh |
GB926025A (en) * | 1960-11-18 | 1963-05-15 | Dowty Rotol Ltd | Electrical de-icing devices |
US3146340A (en) * | 1961-08-21 | 1964-08-25 | Baird Atomic Inc | Heating devices |
US3349359A (en) * | 1964-12-18 | 1967-10-24 | Templeton Coal Company | Electrical heating elment |
DE2153434B2 (de) * | 1971-10-27 | 1972-11-09 | Licentia Patent Verwaltungs GmbH, 6000 Frankfurt | Befestigung von erosionsschutzkanten an flugzeugprofilen |
FR2234130B1 (zh) * | 1973-05-14 | 1976-04-30 | Kamov Nikolai | |
US4534886A (en) * | 1981-01-15 | 1985-08-13 | International Paper Company | Non-woven heating element |
US4841124A (en) * | 1982-03-25 | 1989-06-20 | Cox & Company, Inc. | Strain-resistant heated helicopter rotor blade |
GB2121745A (en) | 1982-06-17 | 1984-01-04 | Westland Plc | Aircraft de-icing apparatus |
FR2528795A1 (fr) * | 1982-06-17 | 1983-12-23 | Westland Plc | Dispositif de degivrage pour aeronefs |
FR2578377B1 (fr) | 1984-12-26 | 1988-07-01 | Aerospatiale | Element chauffant de dispositif de degivrage d'une structure alaire, dispositif et son procede d'obtention |
US4732351A (en) * | 1985-03-21 | 1988-03-22 | Larry Bird | Anti-icing and deicing device |
US4888472A (en) * | 1988-05-12 | 1989-12-19 | David G. Stitz | Radiant heating panels |
US4942078A (en) * | 1988-09-30 | 1990-07-17 | Rockwell International Corporation | Electrically heated structural composite and method of its manufacture |
ATE104493T1 (de) * | 1990-01-24 | 1994-04-15 | Hastings Otis | Elektrisch leitendes laminat fuer temperaturregelung von oberflaechen. |
SU1746057A1 (ru) * | 1990-02-09 | 1992-07-07 | Рижский Краснознаменный Институт Инженеров Гражданской Авиации Им.Ленинского Комсомола | Ветроэлектроустановка |
US5356096A (en) * | 1992-12-30 | 1994-10-18 | The B. F. Goodrich Company | Skin for a deicer |
CA2176359C (en) | 1993-11-30 | 2004-01-27 | David Charles Lawson | An electrically conductive composite heater and method of manufacture |
US5412181A (en) * | 1993-12-27 | 1995-05-02 | The B. F. Goodrich Company | Variable power density heating using stranded resistance wire |
FR2744872B1 (fr) * | 1996-02-08 | 1998-04-10 | Eurocopter France | Dispositif de chauffage d'un profil aerodynamique |
FR2756254B1 (fr) * | 1996-11-27 | 1999-01-29 | Eurocopter France | Dispositif de chauffage d'un profil aerodynamique |
DE69818992T2 (de) * | 1997-05-20 | 2004-07-22 | Thermion Systems International, Stratford | Einrichtung und verfahren zum heizen und enteisen von windturbinenblättern |
US6279856B1 (en) * | 1997-09-22 | 2001-08-28 | Northcoast Technologies | Aircraft de-icing system |
US6237874B1 (en) * | 1997-09-22 | 2001-05-29 | Northcoast Technologies | Zoned aircraft de-icing system and method |
US5934617A (en) * | 1997-09-22 | 1999-08-10 | Northcoast Technologies | De-ice and anti-ice system and method for aircraft surfaces |
FR2779314B1 (fr) * | 1998-05-27 | 2000-08-04 | Eurocopter France | Dispositif de chauffage a elements resistifs d'un profil aerodynamique |
JP2003516609A (ja) * | 1999-12-10 | 2003-05-13 | サーミオン システムズ インターナショナル | 熱可塑性積層生地ヒーターおよびそれを製造する方法 |
US6538340B2 (en) * | 2001-08-06 | 2003-03-25 | Headwinds Corporation | Wind turbine system |
DE10200799A1 (de) * | 2002-01-11 | 2003-07-24 | Christina Musekamp | Rotorblattheizung für Windkraftanlagen |
US7281318B2 (en) * | 2004-05-19 | 2007-10-16 | The Boeing Company | Method of manufacturing a composite structural member having an integrated electrical circuit |
US7217091B2 (en) * | 2004-07-20 | 2007-05-15 | General Electric Company | Methods and apparatus for deicing airfoils or rotor blades |
EP1846293B1 (en) * | 2005-02-09 | 2009-04-29 | Qinetiq Limited | Electrotermal heater for ice protection of aerodynamic surfaces and its method of producing |
US7585156B2 (en) * | 2005-05-27 | 2009-09-08 | Bell Helicopter Textron Inc. | Strained capable conductive/resistive composite hybrid heater for thermal anti-ice device |
US7157663B1 (en) * | 2005-10-12 | 2007-01-02 | The Boeing Company | Conducting-fiber deicing systems and methods |
US7291815B2 (en) * | 2006-02-24 | 2007-11-06 | Goodrich Corporation | Composite ice protection heater and method of producing same |
US7896616B2 (en) * | 2007-01-29 | 2011-03-01 | General Electric Company | Integrated leading edge for wind turbine blade |
FR2924715B1 (fr) * | 2007-12-06 | 2012-10-12 | Arkema France | Materiau forme de molecules arborescentes comportant des groupes associatifs |
WO2011018695A1 (en) * | 2009-08-11 | 2011-02-17 | EcoTemp International, Inc. | Deicing film for wind turbine air foil |
DE102009052535C5 (de) * | 2009-11-11 | 2023-06-01 | Nbhx Trim Gmbh | Innenraumverkleidung |
GB2477338B (en) * | 2010-01-29 | 2011-12-07 | Gkn Aerospace Services Ltd | Electrothermal heater |
EP2386750A1 (en) * | 2010-05-12 | 2011-11-16 | Siemens Aktiengesellschaft | De-icing and/or anti-icing of a wind turbine component by vibrating a piezoelectric material |
EP2497943B1 (en) * | 2011-03-11 | 2013-12-04 | Siemens Aktiengesellschaft | Wind turbine blade with an improved surface |
EP2597305B1 (de) * | 2011-11-24 | 2016-03-09 | Nordex Energy GmbH | Windenergieanlagenrotorblatt mit einem Heizelement und Verfahren zur Herstellung desselben |
-
2011
- 2011-05-31 FI FI20115536A patent/FI20115536A7/fi not_active Application Discontinuation
-
2012
- 2012-05-30 DK DK12793244.0T patent/DK2715128T3/en active
- 2012-05-30 RU RU2013156929/06A patent/RU2591369C2/ru active
- 2012-05-30 WO PCT/FI2012/050531 patent/WO2012164167A1/en active Application Filing
- 2012-05-30 EP EP12793244.0A patent/EP2715128B1/en active Active
- 2012-05-30 CA CA2837828A patent/CA2837828C/en active Active
- 2012-05-30 CN CN201280027058.4A patent/CN103582758B/zh active Active
- 2012-05-30 US US14/122,695 patent/US10632573B2/en active Active
- 2012-05-30 ES ES12793244.0T patent/ES2632587T3/es active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB724745A (en) * | 1952-12-12 | 1955-02-23 | Wingfoot Corp | An electrically heated propeller de-icer |
US5971323A (en) * | 1996-11-27 | 1999-10-26 | Eurocopter | Resistive elements for heating an aerofoil, and device for heating an aerofoil incorporating such elements |
Also Published As
Publication number | Publication date |
---|---|
US20140086748A1 (en) | 2014-03-27 |
EP2715128A1 (en) | 2014-04-09 |
DK2715128T3 (en) | 2017-08-21 |
CA2837828C (en) | 2017-04-18 |
ES2632587T3 (es) | 2017-09-14 |
FI20115536A0 (fi) | 2011-05-31 |
EP2715128B1 (en) | 2017-04-19 |
CN103582758A (zh) | 2014-02-12 |
FI20115536L (fi) | 2013-03-25 |
WO2012164167A1 (en) | 2012-12-06 |
FI20115536A7 (fi) | 2013-03-25 |
RU2591369C2 (ru) | 2016-07-20 |
RU2013156929A (ru) | 2015-07-10 |
CA2837828A1 (en) | 2012-12-06 |
EP2715128A4 (en) | 2015-04-08 |
US10632573B2 (en) | 2020-04-28 |
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Owner name: VISITECH OY COMPANY Free format text: FORMER OWNER: VTT OY RESEARCH CENTER Effective date: 20150410 Owner name: VTT OY RESEARCH CENTER Free format text: FORMER OWNER: VTT TEKNOLOGIAN TUTKIMUSKESKUS Effective date: 20150410 |
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Effective date of registration: 20150410 Address after: Helsinki Applicant after: Westlake OY Address before: Espoo Finland Applicant before: TEKNOLOGIAN TUTKIMUSKESKUS VTT Effective date of registration: 20150410 Address after: Espoo Finland Applicant after: TEKNOLOGIAN TUTKIMUSKESKUS VTT Address before: Finland Ouo Remy Hentig Applicant before: Teknologian Tutkimuskeskus Vtt |
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