DE202008013631U1 - Use of the steel tower of a wind turbine as compressed air storage - Google Patents

Use of the steel tower of a wind turbine as compressed air storage Download PDF

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Publication number
DE202008013631U1
DE202008013631U1 DE202008013631U DE202008013631U DE202008013631U1 DE 202008013631 U1 DE202008013631 U1 DE 202008013631U1 DE 202008013631 U DE202008013631 U DE 202008013631U DE 202008013631 U DE202008013631 U DE 202008013631U DE 202008013631 U1 DE202008013631 U1 DE 202008013631U1
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steel tower
compressed air
generator
steel
tower according
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BRANDMANN FRANK HENNO
BRANDMANN FRANK-HENNO
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BRANDMANN FRANK HENNO
BRANDMANN FRANK-HENNO
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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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/17—Combinations of wind motors with apparatus storing energy storing energy in pressurised fluids
    • 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
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being 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
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/91—Mounting on supporting structures or systems on a stationary structure
    • F05B2240/912—Mounting on supporting structures or systems on a stationary structure on a tower
    • 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
    • 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
    • Y02E10/728—Onshore wind turbines
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
    • 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
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Abstract

Nutzung des Stahlturmes einer Windkraftanlage als Pressluftspeicher (Druckluftspeicher), dadurch gekennzeichnet, dass, der Stahlturm (1) oben und unten mit eingebauten Böden geschlossen ist.use the steel tower of a wind turbine as a compressed air reservoir (compressed air reservoir), characterized in that, the steel tower (1) top and bottom with built-in floors closed is.

Figure 00000001
Figure 00000001

Description

Der Nachteil von Windkraftanlagen besteht darin, dass Strom produziert wird wenn er nicht gebraucht wird oder Flaute herrscht bei Spitzenenergieabnahmezeiten. Eine Energiespeicherung wie bei der Wasserkraft in Pumpspeicherwerken ist bei der Windenergie noch nicht möglich.Of the Disadvantage of wind turbines is that electricity is produced when it is not needed or when there is a lull in peak energy take-off times. An energy storage like hydropower in pumped storage plants is not yet possible with wind energy.

Es gibt in den USA schon Windenergieanlagen, die nur mit Pressluft arbeiten (General Compression) aber nicht den Stahlturm als Pressluftspeicher nutzen.It There are already wind turbines in the US, only with compressed air work (General Compression) but not the steel tower as compressed air storage use.

In Deutschland gibt es seit den 70er Jahren in Huntorf bei Bremen ein Pressluftspeicherkraftwerk (CAES), das in unterirdischen Kavernen Pressluft speichert um sie bei Bedarf wieder in Strom umzuwandeln. Da hier die Wärme, die bei der Kompression entsteht, gespeichert wird und bei der Dekompression wieder zugeführt wird, arbeitet die Anlage mit einem ziemlich hohen Wirkungsgrad.In Germany has been in Huntorf near Bremen since the 1970s Compressed air storage power plant (CAES) operating in underground caverns Pressurized air stores to convert them back into electricity when needed. Since the heat here, which occurs during compression, is stored and during decompression fed again the system works with a fairly high efficiency.

Der Nachteil der Speicherung der Pressluft in Kavernen besteht darin, dass die Windkraftanlagen in der Nähe der Kavernen stehen müssen, zu 100% dicht sein müssen und die salzhaltige Luft zu erhöhter Korrosion und zum Verschleiß der technischen Anlagen führen.Of the Disadvantage of the storage of compressed air in caverns is that the wind turbines must be near the caverns, too 100% must be tight and the salty air too elevated Corrosion and wear of the technical installations.

Der Stahlturm einer Windkraftanlage ist größtenteils leer und würde sich hervorragend als Pressluftspeicher eignen. Hierzu müsste das untere und obere Ende des Stahlturmes mit Böden geschlossen werden, in dem sich jeweils Luken für die Wartung befinden. In der Windkraftanlagengondel müsste ein Kompressor der auch als Pressluftmotor genutzt wird den Turm befüllen, wenn nicht viel Strom im Netz gebraucht wird, und die Pressluftenergie wieder abgeben, wenn viel Strom gebraucht wird oder Flaute ist. Damit der Generator nicht mitläuft wenn Pressluft produziert wird, bzw. das Windrad sich nicht dreht wenn der Pressluftmotor den Generator antreibt, müssen die einzelnen Aggregate durch Kupplungen zu trennen sein. Auch wenn der Wirkungsgrad einer solchen Anlage nicht so hoch sein sollte, ist es immer noch besser als Anlagen wegen Netzüberlastung abzuschalten oder bei Flaute keinen Strom produzieren zu können. Ferner könnte die gespeicherte Pressluft auf Agrarflächen oder in Autobahnnähe auch zum Betrieb von pressluftbetriebenen Arbeitsmaschinen oder Fahrzeugen Verwendung finden.Of the Steel tower of a wind turbine is largely empty and would are ideal as compressed air storage. For this would have the lower and upper end of the steel tower to be closed with floors, in each hatches for the maintenance are located. In the wind turbine gondola would have a Compressor which is also used as a compressed air motor will fill the tower when not much power is needed in the network, and the compressed air energy give it back when a lot of power is needed or lull. So that the generator does not run along if compressed air is produced or the wind turbine does not turn when the compressed air motor drives the generator, the individual units to be separated by couplings. Even if the efficiency of such a system should not be so high it's still better to turn off systems because of network congestion or to be unable to produce electricity during a doldrums Furthermore, the stored compressed air on agricultural land or near the motorway as well for the operation of air driven machines or vehicles Find use.

Mit der Erfindung wird erreicht, dass der Stahlturm (1) einer Windenergieanlage als Speicherbehälter für Pressluft (Druckluft) genutzt wird. Hierzu werden am oberen und unteren Ende des Stahlturmes Böden (4) mit eingebaut, in denen sich nach innen des Stahlturmes zu öffnende Wartungsluken (18) befinden. Damit keine Druckverlust auftritt werden Dichtungen beim Aufbau der einzelnen Stahlturmsegmente (17) verwendet. Die Versorgungsleitungen (13/14), die durch das Innere des Stahlturmes geleitet werden müssen ebenfalls gegen Druckverlust gesichert werden. Um bei Wartungsarbeiten den Turm betreten zu können, muss dieser vorher normalen Umgebungsdruck aufweisen.With the invention it is achieved that the steel tower ( 1 ) a wind turbine is used as a storage container for compressed air (compressed air). For this purpose, at the top and bottom of the steel tower, floors ( 4 ), in which maintenance hatches open to the inside of the steel tower ( 18 ) are located. So that no pressure loss occurs seals are used in the construction of the individual steel tower segments ( 17 ) used. The supply lines ( 13 / 14 ), which must be routed through the interior of the steel tower, must also be secured against pressure loss. In order to enter the tower during maintenance, it must have previously normal ambient pressure.

Der im Schutzanspruch 1 angegebenen Erfindung liegt das Problem zu Grunde, eine Energiespeicherung zu ermöglichen ohne dabei auf Standortbedingungen (Kavernen, Pumpspeicherbecken o. ä.) Rücksicht nehmen zu müssen.Of the in claim 1 protection invention is based on the problem to enable energy storage without being limited to site conditions (caverns, pumped storage basins o. ä.) consideration to have to take.

Wird der Windenergieanlage Energie zugeführt, treibt diese im Normalfall den Generator (5) an, der die elektrische Energie ins Stromnetz abführt. Wenn im Stromnetz aber nicht viel Energie gebraucht wird (nachts) oder bei starker Wind das Netz vor der Überlastung steht, kann in der Windkraftanlagengondel (2) der Generator (5) ausgekuppelt und der Kompressor (6) eingekuppelt werden. Der Kompressor (vorzugsweise Mehrkolbenkompressor, bei dem sich bei Druckzunahme im Turm Kolben abschalten können) befüllt dann den Stahlturm (1) mit Pressluft. Ein positiver Nebeneffekt des unter Druck stehenden Stahlturmes wäre seine höhere Stabilität.If the wind energy plant is supplied with energy, this normally drives the generator ( 5 ), which dissipates the electrical energy into the power grid. However, if there is not much energy needed in the power grid (at night) or if the grid is facing overloading in the case of strong wind, the wind turbine gondola can 2 ) the generator ( 5 ) and the compressor ( 6 ) are engaged. The compressor (preferably a multi-piston compressor in which pistons can switch off when the pressure in the tower increases) then fills the steel tower ( 1 ) with compressed air. A positive side effect of the pressurized steel tower would be its higher stability.

Ist der Stahlturm dann mit Pressluft befüllt, kann diese bei wenig Wind oder Flaute oder bis zur nächsten Spitzenenergieabnahmezeit gespeichert werden. Der Generator wird dann von dem Kompressor der jetzt als Pressluftmotor (6) arbeitet angetrieben. Um ein „Mitdrehen" der Rotorblätter (3) zu verhindern müssen diese vorher ausgekuppelt werden. Um den Wirkungsgrad einer solchen Anlage zu erhöhen kann man die bei der Kompression entstehende Wärme speichern und bei der Dekompression wieder zuführen. Aber auch ohne diese zusätzliche Wirkungsgradsteigerung ist der wirtschaftliche Nutzen der Pressluftspeicherung im Stahlturm einer Windkraftanlage nicht von der Hand zu weisen.If the steel tower is then filled with compressed air, it can be stored with little wind or doldrums or until the next peak power take-off time. The generator is then powered by the compressor which is now the compressed air motor ( 6 ) works powered. In order to "co-rotate" the rotor blades ( 3 ) must be disengaged before this. In order to increase the efficiency of such a system, you can store the heat generated during compression and return it during decompression. But even without this additional increase in efficiency, the economic benefits of compressed air storage in the steel tower of a wind turbine can not be denied.

Ferner könnte die gespeicherte Pressluft auf Agrarflächen oder in Autobahnnähe auch zum Antrieb von Pressluftbetriebenen Arbeitsmaschinen oder Fahrzeugen dienen. (Presslufttankstelle) Pressluft ist ein einfacher und günstiger Energieträger, der ohne großen finanziellen und technischen Aufwand in den Stahltürmen der Windkraftanlagen gespeichert werden kann.Further could the stored compressed air on agricultural land or near the motorway as well for driving compressed air driven machines or vehicles serve. (Compressed air filling station) Compressed air is a simpler and cheaper Energy, the one without a big one financial and technical effort in the steel towers of Wind turbines can be stored.

Claims (8)

Nutzung des Stahlturmes einer Windkraftanlage als Pressluftspeicher (Druckluftspeicher), dadurch gekennzeichnet, dass, der Stahlturm (1) oben und unten mit eingebauten Böden geschlossen ist.Use of the steel tower of a wind power plant as a compressed air reservoir (compressed air reservoir), characterized in that, the steel tower ( 1 ) is closed at the top and bottom with built-in shelves. Stahlturm nach Anspruch 1, dadurch gekennzeichnet, dass, die Rotorblätter (3) über die innere Welle (9) zugeführte Windenergie nicht den Generator (5), sondern den eingekuppelten (8) Kompressor (6) antreibt und somit den Stahlturm (1) mit Pressluft befüllt.Steel tower according to claim 1, characterized in that, the rotor blades ( 3 ) over the inner shaft ( 9 ) supplied wind energy not the generator ( 5 ), but the engaged ( 8th ) Compressor ( 6 ) and thus the steel tower ( 1 ) filled with compressed air. Stahlturm nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass, die Pressluft des befüllten Stahlturmes (1) bei Windstille den Kompressor (6) der jetzt als Pressluftmotor (6) arbeitet über die eingekuppelte (8) innere Welle (9) den Generator (5) antreibt, der Strom erzeugt ohne die ausgekuppelten (7) Rotorblättern (3) mitzudrehen.Steel tower according to one of the preceding claims, characterized in that the compressed air of the filled steel tower ( 1 ) in calm conditions the compressor ( 6 ) now as a compressed air motor ( 6 ) works on the engaged ( 8th ) inner shaft ( 9 ) the generator ( 5 ), which generates electricity without the disengaged ( 7 ) Rotor blades ( 3 ) to turn. Stahlturm nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass, die Rotorblätter (3) bei normalem Wind und normaler Stromabnahme über die äußere Hohlwelle (10) nur den Generator (5) antreibt.Steel tower according to one of the preceding claims, characterized in that, the rotor blades ( 3 ) in normal wind and normal current decrease over the outer hollow shaft ( 10 ) only the generator ( 5 ) drives. Stahlturm nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass, bei starker Wind oder eventuell vor geschaltetem Getriebe die Rotorblätter (3) den eingekuppelten (7) Generator (5) und eingekuppelten (8) Kompressor (6) antreiben.Steel tower according to one of the preceding claims, characterized in that, in strong wind or possibly before switched gear, the rotor blades ( 3 ) the engaged ( 7 ) Generator ( 5 ) and engaged ( 8th ) Compressor ( 6 ). Stahlturm nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass, die Wärmeenergie die bei der Kompression entsteht, zur Wirkungsgradsteigerung, in einem isolierten Tank der mit Rapsöl, Biodiesel, Bioethanol oder ähnlichem gefüllt ist, gespeichert werden kann und bei der Dekompression über Wärmetauscher oder direkte Verbrennung wieder zugeführt wird. (keine Zeichnung).Steel tower according to one of the preceding claims, characterized characterized in that, the heat energy which arises during compression, to increase efficiency, in an isolated tank containing rapeseed oil, biodiesel, bioethanol or the like filled is, can be stored and decompressed by heat exchangers or direct combustion is returned. (no drawing). Stahlturm nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass, ein Stahlrohr (11) durch den Stahlturmkörper geführt werden muss, in dem sich das Generatorstromkabel (13) und andere Versorgungsleitungen (14) bei normalem Umgebungsdruck befinden. An diesem Rohr das mit Verstrebungen (15) am inneren des Stahlturmes (1) befestigt ist, kann eine Wendeltreppe (12) angeordnet werden. Das innere Stahlrohr (11) und die daran befestigte Wendeltreppe (12) können schon im Werk vormontiert werden, sodass sie mit den einzelnen Stahlturmsegmenten (17) auf der Baustelle zusammengeflanscht werden. Die nach innen des Stahlturmes zu öffnenden Lucken (18) in den Böden (4) am Anfang und am Ende der Wendeltreppe und die Flansche (16) der Stahlturmsegmente (17) und des inneren Rohres (11) müssen mit Dichtungen gegen Druckverlust gesichert sein.Steel tower according to one of the preceding claims, characterized in that a steel pipe ( 11 ) through the steel tower body in which the generator power cable ( 13 ) and other supply lines ( 14 ) at normal ambient pressure. At this pipe the with struts ( 15 ) on the inside of the steel tower ( 1 ), a spiral staircase ( 12 ) to be ordered. The inner steel tube ( 11 ) and the attached spiral staircase ( 12 ) can already be preassembled in the factory so that they can be combined with the individual steel tower segments ( 17 ) are flanged together on the construction site. The openings to be opened inside the steel tower ( 18 ) in the soil ( 4 ) at the beginning and at the end of the spiral staircase and the flanges ( 16 ) of the steel tower segments ( 17 ) and the inner tube ( 11 ) must be secured with seals against pressure loss. Stahlturm nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass, die gespeicherte Pressluft (Druckluft) auch zum Antrieb von Arbeitsmaschinen auf Agrarflächen oder Fahrzeugen in Autobahnnähe, auf Landstraßen oder Innenstädten genutzt wird (Presslufttankstelle)Steel tower according to one of the preceding claims, characterized characterized in that, the stored compressed air (compressed air) also for driving work machines on agricultural areas or vehicles near the motorway highways or inner cities is used (compressed air station)
DE202008013631U 2008-10-15 2008-10-15 Use of the steel tower of a wind turbine as compressed air storage Expired - Lifetime DE202008013631U1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014100934U1 (en) 2014-02-28 2014-06-17 Hans-Henning Bielig Wind turbine with additional power generating device
DE202014001543U1 (en) 2014-02-14 2014-06-27 Convia Gmbh Device for providing compressed air
DE102014002335A1 (en) 2014-02-14 2015-08-20 Convia Gmbh Method and device for providing compressed air
DE202016102785U1 (en) 2016-05-25 2016-07-06 Hans-Henning Bielig Wind turbine with an additional energy utilization device
DE202018102987U1 (en) 2018-05-29 2019-08-30 Dimitris Ziremidis Wind turbine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014001543U1 (en) 2014-02-14 2014-06-27 Convia Gmbh Device for providing compressed air
DE102014002335A1 (en) 2014-02-14 2015-08-20 Convia Gmbh Method and device for providing compressed air
DE202014100934U1 (en) 2014-02-28 2014-06-17 Hans-Henning Bielig Wind turbine with additional power generating device
DE102014104675B3 (en) * 2014-02-28 2015-02-19 Hans-Henning Bielig Wind energy plant with additional energy generating device
DE202016102785U1 (en) 2016-05-25 2016-07-06 Hans-Henning Bielig Wind turbine with an additional energy utilization device
DE202018102987U1 (en) 2018-05-29 2019-08-30 Dimitris Ziremidis Wind turbine

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