EP1472457A1 - Turbine eolienne a chemise - Google Patents

Turbine eolienne a chemise

Info

Publication number
EP1472457A1
EP1472457A1 EP02803788A EP02803788A EP1472457A1 EP 1472457 A1 EP1472457 A1 EP 1472457A1 EP 02803788 A EP02803788 A EP 02803788A EP 02803788 A EP02803788 A EP 02803788A EP 1472457 A1 EP1472457 A1 EP 1472457A1
Authority
EP
European Patent Office
Prior art keywords
section
cross
channel
flow channel
inflow
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.)
Withdrawn
Application number
EP02803788A
Other languages
German (de)
English (en)
Inventor
Fritz H. Reinke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1472457A1 publication Critical patent/EP1472457A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/04Wind motors with rotation axis substantially parallel to the air flow entering the rotor  having stationary wind-guiding means, e.g. with shrouds or channels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D13/00Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D80/00Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/50Maintenance or repair
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/10Stators
    • F05B2240/13Stators to collect or cause flow towards or away from turbines
    • F05B2240/133Stators to collect or cause flow towards or away from turbines with a convergent-divergent guiding structure, e.g. a Venturi conduit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/40Use of a multiplicity of similar components
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/90Mounting on supporting structures or systems
    • F05B2240/91Mounting on supporting structures or systems on a stationary structure
    • F05B2240/912Mounting on supporting structures or systems on a stationary structure on a tower
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/90Mounting on supporting structures or systems
    • F05B2240/91Mounting on supporting structures or systems on a stationary structure
    • F05B2240/913Mounting on supporting structures or systems on a stationary structure on a mast
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00Geometry
    • F05B2250/10Geometry two-dimensional
    • F05B2250/14Geometry two-dimensional elliptical
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00Geometry
    • F05B2250/10Geometry two-dimensional
    • F05B2250/16Geometry two-dimensional parabolic
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00Geometry
    • F05B2250/70Shape
    • F05B2250/71Shape curved
    • F05B2250/713Shape curved inflexed
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00Function
    • F05B2260/96Preventing, counteracting or reducing vibration or noise
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/728Onshore wind turbines

Definitions

  • the invention relates to a device for generating electrical energy by means of wind energy, consisting of a housing, which in particular has a horizontal flow channel and can be rotated about a vertical axis, with an inflow channel arranged upstream of the flow channel and a wind turbine located in the end region thereof and having several blades and supplied by wind rotatable rotor, a generator assigned to the rotor and a directional stabilizer attached to the outside of the housing.
  • the known devices for generating electrical energy by wind energy are an imitation of the principle of windmills that has been known for centuries.
  • the wind hits its speed directly on an imaginary, circular surface that is limited by the length of the rotating blades.
  • the shape of the wings corresponds to the propellers of aircraft or the rotors of helicopters.
  • the drive effect is only set at a high speed at which the propellers or rotors look like round disks.
  • this high speed and the associated drive effect cannot be achieved in the opposite direction, as is required in wind power plants.
  • the speed of rotation of the blades or the rotor is much too slow for this. With a wing length of, for example, 15 meters and more, the speed is of the rotor carrying the blades so small that most of the wind blows between the blades.
  • a wind power plant in which a generator with one upstream and one downstream rotor, each consisting of several blades, is arranged in a flow channel.
  • the rotor blades can be rotated about their longitudinal axis.
  • a wind guiding device designed as a funnel is arranged upstream of the wind guiding channel, by means of which the amount of wind to be fed to the rotors is increased.
  • the funnel-shaped wind deflector concentrates the existing air currents on the rotors and the wind speed increases. Nevertheless, the amount of wind and the flow speed are not sufficient to achieve a significant speed of the rotors and thus the generator.
  • the invention is therefore based on the object of demonstrating a device for generating electrical energy from wind energy, in which the utilization of the wind is increased considerably without the costs increasing appreciably.
  • the cost / performance ratio should be improved several times. It should also be achieved that the device can be operated economically at low wind speeds and that there are no significant turbulences which impair the flow.
  • the inflow channel has a trumpet-like cross section, which initially becomes very strong and later gradually after a parabola with the parameter “p equal to or larger than the diameter of the flow channel 5 reduced to the flow channel 5 and in which the inlet cross-section is at least 15 times the outlet cross-section or that the inflow channel has a trumpet-like cross-section in the direction of flow, the boundary line of which initially becomes very strong and later gradually follows an ellipse with "a is 1.1 times to 2. Reduced 5 times from "b" to the flow channel and in which the input cross-section is at least 15 times the output cross-section.
  • the trumpet-like cross-section of the inflow channel significantly increases the amount of wind fed to the rotor very strong and later gradually reducing cross-section on the flow channel contributes significantly to the fact that no significant turbulence occurs, so that the energy of the amount of wind flowing onto the rotor causes an economically usable rotation of the rotor even at low wind speeds.
  • FIG. 1 shows an elevation view of a device according to the invention
  • Fig.2 several battery-like summarized housing of the device according to Fig .1 and
  • FIG. 3 shows a modified cross-sectional shape of the inflow duct of the device of FIG. 1.
  • a device for generating electrical energy by wind energy which here consists first of all of a mast 1 firmly anchored to the ground.
  • This mast 1 is, for example, made of glass fiber reinforced plastic as a tube, the cross section of the mast 1 can be chosen so large that a spiral staircase known per se, but not shown in the drawing, can be installed in it, via which one at the upper end the mast 1 located chamber 2 is accessible.
  • the mast 1 can have an internal reinforcement made of light, vertical steel profiles which are connected to welded steel rings to form a cage which is laminated, for example, at points to a jacket made of fiber-reinforced plastic which forms the outer wall of the mast 1.
  • the spiral staircase mentioned is preferably guided around a steel tube column.
  • the housing 4 which is made of metal or fiber-reinforced plastic, has a flow channel 5 which has a cylindrical or largely cylindrical cross section.
  • This flow channel 5 is preceded by an inflow channel 6 with a cross section that is trumpet-like in the flow direction.
  • the actual cross section of the inflow channel 6, that is to say transversely to the direction of flow, is advantageously circular; however, it can also be out of round or polygonal.
  • the wall or the The boundary line of the inflow channel 6 runs according to a parabola with the parameter “p” equal to or greater than the diameter of the flow channel 5 or the cross section of the outlet 8 of the inflow channel 6.
  • This parameter “p ⁇ can be a maximum of 30 times the diameter of the flow channel 5 or of the cross section of the outlet 8 of the inflow channel 6.
  • the wall or the boundary line of the inflow channel 6 can, in particular with a smaller cross section and shorter length of the inflow channel 6, run after an elliptical section, the parameter “a ⁇ being 1.1 times to 2. 5-fold of the parameter "b is ⁇ .
  • the cross section of the inflow channel 6 narrows in both cases, initially very strong and later gradually but continuously decreasing 5 has the flow channel through the trumpet-like cross-sectional configuration of the inflow channel 6 the same at its input 7 a Cross section on, de r is at least 15 times, advantageously 30 to 100 times the cross section of the outlet 8.
  • This inflow channel 6 has, for example, a diameter of 5 to 30 m at its inlet 7, while the diameter at the outlet 8 is approximately 0.8 to 2.5 m.
  • the length of the inflow channel 6 should normally be approximately 5 to 30 m.
  • the cross section running parabolically or elliptically in the longitudinal direction has already been reduced by almost 50% after a fifth of the length of the inflow channel 6 and by about 80% after half the length of the inflow channel 6.
  • This trumpet-like, longitudinal design of the cross section of the inflow channel 6 ensures that even at low wind speeds, a large amount of wind reaches the flow channel 5 at a relatively high speed.
  • the wind speeds are usually in the order of 2-5 m / s in about 70 to 75% of the cases and in the range of 5 to 10 m / s in about 15 to 17%.
  • the flow velocity of the wind in the flow duct 5 can be up to approximately 300 m / s, taking into account flow losses.
  • a so-called flow ring 9 can be located in the area of the inlet 7 of the inflow channel 6.
  • This flow ring 9 is secured in a manner known per se, not shown, via webs in the inflow channel 6 which have a flow-favorable cross section.
  • Such a flow ring 9 is always provided when the cross section at the inlet 7 of the inflow channel 6 exceeds a certain size.
  • further inflow rings 9 and / or an inflow mushroom can also be provided in the inflow channel 6. Both the flow rings 9 and an inflow mushroom advantageously have a trumpet-like cross section.
  • the flow channel 4 On its side facing away from the inflow channel 6, the flow channel 4 also widens like a trumpet.
  • a rotor 11 is provided in this trumpet-like enlarged region 10, which consists of a base body 12 and blades or wings 13 fastened thereon.
  • the base body 12 also has a trumpet-like cross section and the wings 13, which can also be referred to as flow blades, adjoin the wall of the trumpet-like area 10, albeit at a small distance.
  • the rotor 11, which consists of the base body 12 and the vanes 13, thus also has a trumpet-like cross section.
  • the wings 13 of the rotor 11 have a helical shape extending through a predetermined angle over the base body 12, so that the rotor 11 can be set in rotary motion by the inflowing wind.
  • the rotor 11 is supported by a shaft 14 which is mounted in a stationary manner in the housing 4 and to which a generator 16 is connected, for example via a coupling 15.
  • a generator 16 When the rotor 11 rotates, current is generated via the generator 16.
  • the region 10 of the flow channel 5 which widens like a trumpet then merges into a further widening outflow channel 17, the outflow opening 18 of which is directed upwards in the exemplary embodiment shown.
  • an upwardly directed baffle can also be provided in the outflow channel 17.
  • a sheet-like directional stabilizer 19 connects at least on the underside of the housing 4, which can be used, for example, as an advertising surface. As indicated, this directional stabilizer 19 can also only or additionally extend over the top of the housing.
  • a plurality of housings 4 with inflow channels 6 are arranged next to and above one another.
  • Such a device is then no longer on a mast 1, but preferably on a hill or on the roof of a building. When placed on a hill, it should be at least 10m, but advantageously 20-30rn higher than the rest of the level and have a streamlined surface. With such a device, which must also be arranged rotatable about a vertical axis, an extremely large amount of electrical energy can be obtained.
  • FIG. 3 of the drawing shows a different embodiment of a trumpet-like inflow channel 6, in which the boundary line is particularly advantageously and aerodynamically changed by adding another tiOmpeten-like cross section and runs largely parallel to the direction of flow even before the inlet 7 , If this front end of the inflow channel 6 is not cylindrical, the angle of inclination of the wall to the axis should not be greater than 10 degrees.
  • the rotor 11 consisting of the base body 12 and vanes 13 perpendicular to the flow channel 5.
  • the rotor 11 would also have to be designed differently with its wings 13 and the base body 12.
  • the cross-section of the inflow channel 6, which is referred to as circular can also have a different cross-sectional shape. This can be, for example, rectangular with rounded corners.

Landscapes

  • 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

La présente invention concerne un dispositif pour produire de l'énergie électrique au moyen d'énergie éolienne. Ce dispositif est constitué d'un boîtier (4), qui présente un canal d'écoulement (6, 5) notamment horizontal, qui peut tourner autour d'un axe vertical et qui comprend un canal d'admission (6), monté en amont dudit canal d'écoulement, et un rotor (11), situé dans la zone d'extrémité du canal d'admission, présentant plusieurs ailettes et pouvant être entraîné en rotation par le vent, d'une génératrice (16), qui est associée audit rotor, ainsi que d'un stabilisateur de direction (19), qui est appliqué à l'extérieur sur ledit boîtier. Ledit canal d'admission présente une section transversale de type trompette, qui monte au début très fortement, puis ensuite graduellement, comme une parabole, avec le paramètre « p » qui est supérieur ou égal au diamètre du canal d'écoulement (5), ou qui diminue sur le canal d'écoulement, comme une ellipse, avec « a » qui vaut de 1,1 fois à 2,5 fois « b ». Selon cette invention, la section transversale d'entrée s'élève à au moins 15 fois la section transversale de sortie.
EP02803788A 2001-11-24 2002-11-23 Turbine eolienne a chemise Withdrawn EP1472457A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10157821 2001-11-24
DE10157821A DE10157821A1 (de) 2001-11-24 2001-11-24 Windkraftanlage
PCT/EP2002/013185 WO2003046377A1 (fr) 2001-11-24 2002-11-23 Turbine eolienne a chemise

Publications (1)

Publication Number Publication Date
EP1472457A1 true EP1472457A1 (fr) 2004-11-03

Family

ID=7706941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02803788A Withdrawn EP1472457A1 (fr) 2001-11-24 2002-11-23 Turbine eolienne a chemise

Country Status (3)

Country Link
EP (1) EP1472457A1 (fr)
DE (1) DE10157821A1 (fr)
WO (1) WO2003046377A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10336998A1 (de) * 2003-08-12 2005-03-10 Noi Immobilien Und Vermoegensv Windenergieanlage
GB2467023B (en) * 2008-12-25 2011-03-02 Altenergy Ltd Wind generator
CN105508130B (zh) * 2015-12-29 2018-10-09 中国石油化工股份有限公司 集风式风力发电机

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR516675A (fr) * 1920-06-08 1921-04-23 Louis Alphonse Jourdain Turbine aérienne
FR2457990A1 (fr) * 1979-05-28 1980-12-26 Rignault Jean Systeme de canalisations permettant d'utiliser industriellement l'energie eolienne
DE3015756A1 (de) * 1980-04-24 1981-10-29 Ed. Mann GmbH & Co KG Papierfabrik, 6719 Ebertsheim Windturbine
DE3342815A1 (de) * 1983-11-24 1985-06-05 Robert 1000 Berlin Kaufmann Windkraftwerk
DE3842026A1 (de) * 1988-10-15 1990-07-19 Dietrich F W Schiffer Turm in hochstabiler, weitgehendst schwingungsfreier konstruktion u. a. fuer windkraftanlagen aus gfk oder kfk laminar- oder sandwichbauweise fuer schwerste belastungen in grossen hoehen
US6213721B1 (en) * 1993-11-09 2001-04-10 Thomson Marconi Sonar Limited Noise emission reduction
DE29601674U1 (de) 1996-02-01 1996-03-28 Bachmann Forming AG, Hochdorf Pflanzschale und Transportschale zur Aufnahme von Pflanzschalen
FR2754858B1 (fr) * 1996-10-22 1999-01-08 Martinet Pierre Dispositif eolien
JP2001132614A (ja) * 1999-11-11 2001-05-18 Naoyoshi Hosoda 風力発電装置
DE19958414A1 (de) * 1999-12-03 2001-06-28 Iourii Gribov Vorrichtung zur Umwandlung von Wind- und Sonnenenergie
GB2359594B (en) * 2000-02-26 2002-02-13 Leonard Thomas Vaughan Wind-powered generating device having a convergent duct

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03046377A1 *

Also Published As

Publication number Publication date
WO2003046377A1 (fr) 2003-06-05
DE10157821A1 (de) 2003-06-12

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