DE202007010614U1 - Wind turbine with a shroud of the turbine blades and with the use of devices for generating rotational flows behind the plant - Google Patents

Wind turbine with a shroud of the turbine blades and with the use of devices for generating rotational flows behind the plant Download PDF

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Publication number
DE202007010614U1
DE202007010614U1 DE202007010614U DE202007010614U DE202007010614U1 DE 202007010614 U1 DE202007010614 U1 DE 202007010614U1 DE 202007010614 U DE202007010614 U DE 202007010614U DE 202007010614 U DE202007010614 U DE 202007010614U DE 202007010614 U1 DE202007010614 U1 DE 202007010614U1
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turbine
shroud
devices
wind turbine
blades
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DE202007010614U
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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 
    • F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • 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
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • 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
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/13—Stators to collect or cause flow towards or away from turbines
    • 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
    • F05B2240/00—Components
    • F05B2240/10—Stators
    • F05B2240/13—Stators to collect or cause flow towards or away from turbines
    • F05B2240/133—Stators to collect or cause flow towards or away from turbines with a convergent-divergent guiding structure, e.g. a Venturi conduit
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)

Abstract

Eine Windkraftanlage mit einer Ummantelung der Schaufelturbine oder Schaufelturbinen und mit Anwendung von Vorrichtungen zur Erzeugung von Drehströmungen hinter der Anlage, ist dadurch gekennzeichnet, dass ein koaxial zur Längsachse eingebrachter paraboloidformiger Strömungskörper (1), der gemeinsam mit einen Konfuser der Hauptummantelung (3) einen sich verengernden Ringkanal bildet.A Wind turbine with a shroud of the blade turbine or paddle turbines and with the application of rotary flow generating devices the plant, is characterized in that a coaxial with the longitudinal axis introduced paraboloidformiger flow body (1), which together with a confuser of the main sheath (3) a constricting one Ring channel forms.

Figure 00000001
Figure 00000001

Description

Aus vorliegenden Patenten und Anwendungen ist bekannt, dass durch eine in Strömungsrichtung aufweitende Ummantelung einer oder mehrerer Windturbinen eine Leistungskonzentration im Strömungsgebiet der Turbine/Turbinen erfolgt und damit günstigere Bedingungen für die Leistungsumwandlung in der Turbine gegeben sind. Diese Leistungskonzentration ergibt sich durch die Entstehung einer Druckdifferenz vor und hinter der Turbine. Diese Druckdifferenz erhöht sich durch die Verwendung von Vorrichtungen zur Erzeugung von Drehströmungen sowohl innerhalb als auch außerhalb der Ummantelung.Out The present patents and applications are known to be characterized by a in the flow direction widening sheathing of one or more wind turbines a power concentration in the flow area the turbine / turbines and thus more favorable conditions for the power conversion are given in the turbine. This power concentration gives itself by the emergence of a pressure difference before and behind the Turbine. This pressure difference increases through the use of Devices for generating rotational flows both within and also outside the sheath.

Aufgabe der vorliegenden Erfindung ist es, eine weitere Erhöhung der Luftströmungsgeschwindigkeit und des gesamten Wirkungsgrades der Windkraftanlage.task The object of the present invention is to further increase the Air flow rate and the overall efficiency of the wind turbine.

Gelöst wird diese Aufgabe durch einen koaxial zur Längsachse eingebrachten paraboloidformigen Strömungskörper (1), der gemeinsam mit einem Konfuser der Hauptummantelung (3) einen sich verengernden Ringkanal bildet und damit die Strömungsgeschwindigkeit in den Ringkanal erhöht, dessen kinetisch Energie durch Verwendung einer oder mehrerer Schaufelturbinen in mechanische Energie umgewandelt wird.This object is achieved by a paraboloid-shaped flow body introduced coaxially to the longitudinal axis ( 1 ), who, together with a confuser of the main coat ( 3 ) forms a narrowing annular channel and thus increases the flow velocity in the annular channel, the kinetic energy is converted by using one or more paddle turbines into mechanical energy.

Die Vorrichtungen zur Erzeugung von Drehströmungen sowohl innerhalb als auch außerhalb der Ummantelung bestehen aus Ringkanälen, in denen Strömungsumlenkschaufeln eingesetzt sind. Sie leiten die Luftströmung bei den Vorrichtungen in dieselbe Richtung, entweder im Urzeigersinn oder entgegengesetzt, so dass nach dem Verlassen der Ummantelung beide Drehströmungen sich zu einer gemeinsamen konusförmigen Drehströmung mit großer Aufweitung vereinigen.The Devices for generating rotational flows both within and also outside the jacket consist of annular channels in which Strömungsumlenkschaufeln are used. They direct the airflow at the devices in the same direction, either clockwise or counter-clockwise, so that after leaving the jacket both rotational flows themselves to a common cone-shaped rotational flow with great expansion unite.

Die Luftströmung nach den Schaufeln der Turbinen wird durch die Vorrichtung zur Erzeugung der Drehströmung (4) in einen Drehstrom umgewandelt, der innerhalb der Ummantelung durch zentrifugale Kräfte an die innere Oberfläche der Ummantelung gedrückt wird. Auf diese Weise wird ein Unterdruck im inneren Volumen erzeugt, der durch die innere Ummantelung begrenzt wird. Die Vorrichtung zur Erzeugung der Drehströmung (5), die am Ende der äußeren Seite der ersten Ummantelung platziert ist, gewährleistet die Konzentration der kinetischen Energie der ankommenden Windströmung dadurch, dass die Fläche der Eintrittsöffnung größer ist als die der Austrittsöffnung. Sie bringt die Strömung mit Hilfe von Strömungsumlenkschaufeln zu einer konusförmigen Ausweitung der Drehströmung. Diese vereinigt sich mit der Drehströmung, die von der inneren Ummantelung abgeht. Innerhalb der so entstandenen konusförmigen Drehströmung bildet sich eine größere Unterdruckzone, die die Steigerung der Durchlaufgeschwindigkeit der Strömung durch den Turbinenkanal und somit die Umwandelung der kinetischen Energie durch die Schaufeln der Turbine in mechanische Energie erzeugt.The flow of air past the blades of the turbines is controlled by the rotary flow generating device ( 4 ) is converted into a three-phase current which is pressed by centrifugal forces on the inner surface of the casing within the casing. In this way, a negative pressure in the inner volume is generated, which is limited by the inner sheath. The device for generating the rotary flow ( 5 ) placed at the end of the outer side of the first jacket ensures the concentration of the kinetic energy of the incoming wind flow in that the area of the inlet opening is larger than that of the outlet opening. It brings the flow with the help of Strömungsumlenkschaufeln to a conical expansion of the rotary flow. This merges with the rotational flow that comes from the inner shell. Within the resulting cone-shaped rotary flow, there is formed a larger negative pressure zone which produces the increase in the flow rate of flow through the turbine duct and thus the conversion of kinetic energy by the blades of the turbine into mechanical energy.

Die 1, zeigt eine mögliche konstruktive Lösung der Windkraftanlage mit zwei Ummantelungen und zwei Vorrichtungen zur Erzeugung der Drehströmungen. Dabei sind:The 1 shows a possible constructive solution of the wind turbine with two sheaths and two devices for generating the rotational flows. Here are:

11
paraboloidformiger Strömungskörpersparaboloidformiger flow body
22
Schaufelturbinenscoop turbines
33
Hauptummantelungmain casing
44
Vorrichtung zur Erzeugung von Drehströmung innerhalb der Diffusorummantelungcontraption for generating rotary flow within the diffuser jacket
55
Vorrichtung zur Erzeugung von Drehströmung außerhalb der ersten Diffusorummantelungcontraption for generating rotary flow outside the first diffuser jacket
66
Zweite UmmantelungSecond jacket
77
Schaufelträgerblade carrier
88th
innere Abdeckunginner cover
99
Wellenlagerungshaft bearing
1010
kinematische Verbindung beider Turbinenkinematic Connection of both turbines
1111
Welle des Drehgestellwave of the bogie
1212
Mast mit Drehgestellmast with bogie
1313
Verbindungsplattenconnecting plates
1414
Antriebswelledrive shaft
1515
Generatorgenerator

Claims (4)

Eine Windkraftanlage mit einer Ummantelung der Schaufelturbine oder Schaufelturbinen und mit Anwendung von Vorrichtungen zur Erzeugung von Drehströmungen hinter der Anlage, ist dadurch gekennzeichnet, dass ein koaxial zur Längsachse eingebrachter paraboloidformiger Strömungskörper (1), der gemeinsam mit einen Konfuser der Hauptummantelung (3) einen sich verengernden Ringkanal bildet.A wind turbine with a shroud of the blade turbine or turbine blades and with the use of devices for generating rotational flows behind the plant, is characterized in that a coaxial to the longitudinal axis paraboloidformiger flow body ( 1 ), which together with a confuser of the main sheath ( 3 ) forms a narrowing annular channel. Eine Windkraftanlage mit einer Ummantelung der Schaufelturbine oder Schaufelturbinen und mit Anwendung von Vorrichtungen zur Erzeugung von Drehströmungen hinter der Anlage nach Anspruch 1, ist dadurch gekennzeichnet, dass in dem engsten Querschnitt des Ringkanal eine oder mehrere Schaufelturbinen angeordnet sind.A wind turbine with a shroud of the blade turbine or paddle turbines and with the use of devices for generating of rotational flows behind the plant according to claim 1, characterized in that in the narrowest cross-section of the annular channel, one or more paddle turbines are arranged. Eine Windkraftanlage mit einer Ummantelung der Schaufelturbine oder Schaufelturbinen und mit Anwendung von Vorrichtungen zur Erzeugung von Drehströmungen hinter der Anlage nach Anspruch 2, ist dadurch gekennzeichnet, dass zwei Schaufelturbinen in entgegengesetzte Drehrichtungen laufen. Das wird durch eine entsprechende Festlegung der Anstellwinkel der Schaufeln und durch eine kinematische Verbindung erreicht.A wind turbine with a shroud of the blade turbine or turbine blades and with the use of devices for generating rotational flows behind the plant according to claim 2, characterized in that two turbine blades run in opposite directions of rotation. This is done by a corresponding determination of the angle of attack of the blades and by a kinemati reached. Eine Windkraftanlage mit einer Ummantelung der Schaufelturbine oder Schaufelturbinen und mit Anwendung von Vorrichtungen zur Erzeugung von Drehströmungen hinter der Anlage nach Anspruch 2, ist dadurch gekennzeichnet, dass bei zwei Schaufelturbinen (zweistufige Turbine) für jede Stufe verschiedene Parameter und Anzahl der Schaufeln verwendet werden.A wind turbine with a shroud of the blade turbine or paddle turbines and with the use of devices for generating of rotational flows behind the plant according to claim 2, characterized in that with two paddle turbines (two-stage turbine) for each stage different parameters and number of blades are used.
DE202007010614U 2007-07-27 2007-07-27 Wind turbine with a shroud of the turbine blades and with the use of devices for generating rotational flows behind the plant Expired - Lifetime DE202007010614U1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011107071A1 (en) * 2011-07-11 2013-01-17 Elmar Ph. Putz Process for recovering energy from moving liquids and gases with turbines according to the principle of Coriolis acceleration
FR3003311A1 (en) * 2013-03-12 2014-09-19 Sauval Claude Rene TURBINE WIND TURBINE WITH MULTIFLUX VENTURI FITTING AND GAS TURBINE
DE102014006434A1 (en) * 2013-05-17 2015-04-23 Andrej Kohlmann Wind power plant with buoyancy effect and prominent features for gaining energy from weak to moderate winds
EP2334931A4 (en) * 2008-10-09 2016-06-08 Biro Air Energy Inc Wind powered apparatus having counter rotating blades
DE102021005200A1 (en) 2021-10-19 2023-04-20 Gebhard Bernsau Device for converting flow energy transported through a medium into mechanical and/or electrical energy

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2334931A4 (en) * 2008-10-09 2016-06-08 Biro Air Energy Inc Wind powered apparatus having counter rotating blades
DE102011107071A1 (en) * 2011-07-11 2013-01-17 Elmar Ph. Putz Process for recovering energy from moving liquids and gases with turbines according to the principle of Coriolis acceleration
FR3003311A1 (en) * 2013-03-12 2014-09-19 Sauval Claude Rene TURBINE WIND TURBINE WITH MULTIFLUX VENTURI FITTING AND GAS TURBINE
DE102014006434A1 (en) * 2013-05-17 2015-04-23 Andrej Kohlmann Wind power plant with buoyancy effect and prominent features for gaining energy from weak to moderate winds
DE102021005200A1 (en) 2021-10-19 2023-04-20 Gebhard Bernsau Device for converting flow energy transported through a medium into mechanical and/or electrical energy

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Effective date: 20071122

R156 Lapse of ip right after 3 years

Effective date: 20110201