DE202012008475U1 - Installation of an electric surface heater in the rotor blades and hub of a horizontal wind turbine to avoid icing - Google Patents

Installation of an electric surface heater in the rotor blades and hub of a horizontal wind turbine to avoid icing Download PDF

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Publication number
DE202012008475U1
DE202012008475U1 DE202012008475U DE202012008475U DE202012008475U1 DE 202012008475 U1 DE202012008475 U1 DE 202012008475U1 DE 202012008475 U DE202012008475 U DE 202012008475U DE 202012008475 U DE202012008475 U DE 202012008475U DE 202012008475 U1 DE202012008475 U1 DE 202012008475U1
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electric surface
installation
wind turbine
hub
rotor blades
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DE202012008475U
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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
    • F03D1/0691—Rotors characterised by their construction elements of the hub
    • 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
    • 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

Schutzanspruch 1 ist durch den Einbau der Elektroflächenheizung (2) innerhalb des Rottorblattes (4) gekennzeichnet. Die Elektroflächenheizung (2) wird in die Gießschale als erstes gelegt und in die äußerste schicht des glasfaserverstärkten Kunststoffs GfK (1) aus dem der Rotorblatt (4) besteht eingegossen. Somit ergibt sich eine Einheit. Die Elektroflächenheizung (2) wird später mit einer Beschichtung (3) überdeckt. Somit ergibt sich eine glatte Fläche, die für die Aerodynamik des Rotorblattes entscheidend ist.Protection claim 1 is characterized by the installation of the electric surface heating (2) within the rotor blade (4). The electric surface heater (2) is placed in the casting dish first and poured into the outermost layer of the glass fiber reinforced plastic GRP (1) from which the rotor blade (4) is made. This creates a unit. The electric surface heating (2) will later be covered with a coating (3). This results in a smooth surface that is crucial for the aerodynamics of the rotor blade.

Description

Eine Windkraftanlage erntet mit ihrem Rotor die Energie des Windes, wandelt sie in elektrische Energie um und speist sie in das Stromnetz ein. Die Auftriebsläufer einer Vertikale Windkraftanlage lassen sich auch mit vertikaler Rotationsachse realisieren.A wind turbine uses its rotor to harvest the energy of the wind, transform it into electrical energy and feed it into the power grid. The lift runners of a vertical wind turbine can also be realized with a vertical axis of rotation.

Eine Windkraftanlage besteht im Wesentlichen aus einem Rotor mit Nabe und Rotorblättern sowie einer Maschinengondel, die den Generator und häufig ein Getriebe beherbergt. Es gibt auch Anlagen ohne Getriebe. Die Gondel ist drehbar auf einem Turm gelagert, dessen Fundament die notwendige Standsicherheit gibt.A wind turbine essentially consists of a rotor with hub and rotor blades and a nacelle that houses the generator and often a gearbox. There are also plants without gears. The nacelle is rotatably mounted on a tower whose foundation gives the necessary stability.

Das grundlegende Element der Elektro Flächenheizung ist entweder ein selbstständiges Widerstandskabel (einadriges oder zweiadriges, mit oder ohne Schutzumflechtung), ggf. ein wegen seines leichteren Einbaus und wegen der Minderung des Risikos der Beschädigung an der sog. Heizmatte fixiertes Heizkabel. Ihre Verwendung ist auch bei der Entfrostung von Außenflächen, der Entfernung von Schnee und Eis:
Durch Schutzanspruch 1 ist ein Einbau einer Elektro Flächenheizung in die Rotorblätter einer Windkraftanlage und in die Nabe zur Vermeidung der EisschlagsThe basic element of the electric surface heating is either a self-contained resistance cable (one-core or two-core, with or without protective braiding), possibly a because of its easier installation and because of the risk of damage to the so-called heating mat fixed heating cable. Their use is also in the defrosting of external surfaces, the removal of snow and ice:
By protection claim 1 is an installation of an electric surface heating in the rotor blades of a wind turbine and in the hub to avoid icing

Die Rotorblätter von Windkraftanlagen können bei entsprechender Witterung Eis ansetzen, das sich bei Tauwetter bei stehender und als Eiswurf bei anlaufender Anlage ablösen kann. Alle modernen Anlagen verfügen über eine Eiserkennung, beruhend auf Temperatur, Windsensorstatus, Windgeschwindigkeits- und Leistungsdaten, sodass sie bei Vereisung automatisch abschalten und erst bei Tauwetter wieder anlaufen. Durch den Einbau eine Elektroflächenheizung in dem gesamte Rotorblatt und der Nabe, die von der Batterie in der Gondel mit Strom versorgt wird, wird die Gefahr des Eisschlags ausgeschlossen.The rotor blades of wind turbines can set ice in appropriate weather, which can replace in thawing when standing and as ice throw in approaching system. All modern facilities have ice detection based on temperature, wind sensor status, wind speed and performance data, so they automatically shut off during icing and do not restart until thawed. By installing an electric surface heater in the entire rotor blade and the hub, which is powered by the battery in the nacelle, the risk of icing is excluded.

Der im Schutzanspruch 2 bezieht sich auf die Anordnung der Elektroflächenheizung innerhalb des Rottorblatts. Diese wird in die Gießschale gelegt und die äußerste schicht des Gfk mit eingegossen. Somit ergibt sich eine Einheit. Diese wird später beschichtet.The protection in claim 2 refers to the arrangement of the electric surface heating within the Rottorblatts. This is placed in the casting bowl and cast in the outermost layer of the Gfk. This results in a unit. This will be coated later.

Rotorblätter für Windenergieanlagen sind wesentlich für den Ertrag einer Windenergieanlage verantwortlich und stellen daher eine der Schlüsselkomponenten dar. Sie bestehen heute hauptsächlich aus glasfaserverstärktem Kunststoff (GfK) und werden in Halbschalen-Sandwichbauweise hergestellt.Rotor blades for wind turbines are responsible for the yield of a wind turbine and are therefore one of the key components. Today, they mainly consist of glass fiber reinforced plastic (GfK) and are manufactured in half-shell sandwich construction.

Ein Ausführungsbeispiel wird der 1 Es zeigt:An embodiment is the 1 It shows:

1 Zeigt den Aufbau eines Rotorblattes (4) mit in äußerster Schicht des GfK (1) eingebetteten Elektroflächenheizung (2) überdeckt mit späterer Beschichtung (3). 1 Shows the structure of a rotor blade ( 4 ) in the outermost layer of the GfK ( 1 ) embedded electric surface heating ( 2 ) covered with later coating ( 3 ).

Claims (1)

Schutzanspruch 1 ist durch den Einbau der Elektroflächenheizung (2) innerhalb des Rottorblattes (4) gekennzeichnet. Die Elektroflächenheizung (2) wird in die Gießschale als erstes gelegt und in die äußerste schicht des glasfaserverstärkten Kunststoffs GfK (1) aus dem der Rotorblatt (4) besteht eingegossen. Somit ergibt sich eine Einheit. Die Elektroflächenheizung (2) wird später mit einer Beschichtung (3) überdeckt. Somit ergibt sich eine glatte Fläche, die für die Aerodynamik des Rotorblattes entscheidend ist.Protection claim 1 is through the installation of the electric surface heating ( 2 ) within the Rottorblatt ( 4 ). The electric surface heating ( 2 ) is placed in the casting bowl first and in the outermost layer of the glass fiber reinforced plastic GfK ( 1 ) from which the rotor blade ( 4 ) is poured. This results in a unit. The electric surface heating ( 2 ) is later coated with a coating ( 3 ) covered. This results in a smooth surface, which is crucial for the aerodynamics of the rotor blade.
DE202012008475U 2012-08-29 2012-08-29 Installation of an electric surface heater in the rotor blades and hub of a horizontal wind turbine to avoid icing Expired - Lifetime DE202012008475U1 (en)

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DE202012008475U DE202012008475U1 (en) 2012-08-29 2012-08-29 Installation of an electric surface heater in the rotor blades and hub of a horizontal wind turbine to avoid icing

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DE202012008475U1 true DE202012008475U1 (en) 2012-11-06

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016065807A1 (en) * 2014-10-30 2016-05-06 株洲时代新材料科技股份有限公司 Anti-icing wind power blade and blade deicing and heating method
WO2018060065A1 (en) * 2016-09-28 2018-04-05 Muehlhan Ag Rotor blade coating
CN110640083A (en) * 2019-09-28 2020-01-03 安徽慧枫再生资源科技有限公司 Preparation method of slurry for aluminum alloy investment casting shell

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016065807A1 (en) * 2014-10-30 2016-05-06 株洲时代新材料科技股份有限公司 Anti-icing wind power blade and blade deicing and heating method
US10502192B2 (en) 2014-10-30 2019-12-10 Zhuzhou Times New Materials Technology Co., Ltd. Anti-icing wind power blade and blade deicing and heating method
WO2018060065A1 (en) * 2016-09-28 2018-04-05 Muehlhan Ag Rotor blade coating
US10974277B2 (en) 2016-09-28 2021-04-13 Muehlhan Ag Rotor blade coating
CN110640083A (en) * 2019-09-28 2020-01-03 安徽慧枫再生资源科技有限公司 Preparation method of slurry for aluminum alloy investment casting shell

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R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 20121227

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