DE19900026B4 - Gas turbine with steam injection - Google Patents
Gas turbine with steam injection Download PDFInfo
- Publication number
- DE19900026B4 DE19900026B4 DE19900026.3A DE19900026A DE19900026B4 DE 19900026 B4 DE19900026 B4 DE 19900026B4 DE 19900026 A DE19900026 A DE 19900026A DE 19900026 B4 DE19900026 B4 DE 19900026B4
- Authority
- DE
- Germany
- Prior art keywords
- gas turbine
- steam
- turbine
- heat recovery
- cooling
- 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.)
- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/30—Adding water, steam or other fluids for influencing combustion, e.g. to obtain cleaner exhaust gases
- F02C3/305—Increasing the power, speed, torque or efficiency of a gas turbine or the thrust of a turbojet engine by injecting or adding water, steam or other fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K21/00—Steam engine plants not otherwise provided for
- F01K21/04—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas
- F01K21/047—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas having at least one combustion gas turbine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas- turbine plants for special use
- F02C6/003—Gas-turbine plants with heaters between turbine stages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/14—Cooling of plants of fluids in the plant, e.g. lubricant or fuel
- F02C7/141—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid
- F02C7/143—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid before or between the compressor stages
- F02C7/1435—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid before or between the compressor stages by water injection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/212—Heat transfer, e.g. cooling by water injection
Abstract
Gasturbine mit Dampfeindüsung, wobei die Gasturbine im wesentlichen aus einer Verdichtereinheit (1), aus mindestens einer Brennkammer (4, 9), mindestens einer Turbine (7, 12) und einem Generator (19) besteht, und wobei die Abgase aus der Turbine (7, 12) einen Abhitzedampferzeuger (14) beaufschlagen, wobei aus der Verdichtereinheit (1) an geeigneter Stelle hinsichtlich Druck und Temperatur mindestens eine Kühlluftmenge (22, 23) zur Kühlung der thermisch belasteten Aggregate der Gasturbine entnehmbar ist, und wobei eine Dampfmenge (20) aus dem Abhitzedampferzeuger (14) eine Gegendruckturbine (28) beaufschlagt, dadurch gekennzeichnet, dass mindestens eine aus dem Abhitzedampferzeuger (14) mittelbar abgeleitete Dampfmenge (29) und/oder Heisswassermenge (24) und/oder eine von aussen zugeleitete Frischwassermenge (25) in die Verdichtereinheit (1) einleitbar ist, dass ein Teil Dampfmenge (30) der in der Gegendruckturbine (28) entspannten Dampfmenge (29) der Kühlluft (22, 23) beimischbar ist, und dass dieses zusammengesetzte Kühlmedium (30, 22, 23) mindestens zur Kühlung der thermisch belasteten Teile einer ersten Turbine (7) der Gasturbine einsetzbar ist.Gas turbine with steam injection, wherein the gas turbine consists essentially of a compressor unit (1), at least one combustion chamber (4, 9), at least one turbine (7, 12) and a generator (19), and wherein the exhaust gases from the turbine ( 7, 12) act on a heat recovery steam generator (14), wherein from the compressor unit (1) at a suitable point in terms of pressure and temperature at least one cooling air quantity (22, 23) for cooling the thermally loaded units of the gas turbine can be removed, and wherein a steam quantity (20 ) from the heat recovery steam generator (14) acted upon by a back pressure turbine (28), characterized in that at least one steam quantity (29) and / or hot water quantity (24) indirectly derived from the heat recovery steam generator (14) and / or a fresh water quantity (25) supplied from the outside in the compressor unit (1) can be introduced, that a portion of steam quantity (30) of the in the back pressure turbine (28) relaxed steam quantity (29) of the cooling air (22, 23) admixable i st, and that this composite cooling medium (30, 22, 23) is used at least for cooling the thermally stressed parts of a first turbine (7) of the gas turbine.
Description
Technisches GebietTechnical area
Die vorliegende Erfindung betrifft eine Gasturbine mit Dampfeindüsung gemäss Oberbegriff des Anspruchs 1.The present invention relates to a gas turbine with steam injection according to the preamble of
Stand der TechnikState of the art
Aus
Diese Schaltung weist indessen keine befriedigende Wirkungsgradsteigerung auf, weil der im Verdichter erzeugte Dampf in der Turbine keine Arbeit leistet.However, this circuit does not have a satisfactory increase in efficiency, because the steam generated in the compressor does not work in the turbine.
Des Weiteren beschreibt die Druckschrift
Aus der
Aus
Darstellung der ErfindungPresentation of the invention
Hier will die Erfindung Abhilfe schaffen. Der Erfindung, wie sie in den Ansprüchen gekennzeichnet ist, liegt die Aufgabe zugrunde bei einer Gasturbine der eingangs genannten Art deren Wirkungsgrad und spezifische Leistung kräftig zu steigern.The invention aims to remedy this situation. The invention, as characterized in the claims, the object is based on a gas turbine of the type mentioned to increase their efficiency and specific power vigorously.
Die Grundschaltung der Gasturbogruppe eignet sich sowohl für eine einfach befeuerte Gasturbine als auch für eine solche mit sequentieller Verbrennung. Die wesentlichen Aspekte der Erfindung sind darin zu sehen, dass bei einer Gasturbine mit Dampfeinblasung die Verdichteraustrittstemperatur gesenkt werden kann, ohne dass der Wirkungsgrad durch einen Kühlluftkühler verschlechtert wird. Im ersten Teil der Verdichtung wird eine Verdampfungskühlung durch eine dosierte Wassereinspritzung bewerkstelligt. Dabei halten sich der Rückgang an Verdichterleistungsbedarf und der Mehrbedarf an Brennstoff im Rahmen des Wirkungsgrades einer Gasturbine mit Dampfeinblasung etwa die Waage. Für moderate Turbineneintrittstemperaturen von 1200–1300°C wird durch die Massnahme eine weitere Leistungserhöhung erzielt, ohne dass die Luftüberschusszahl in der Brennkammer zu niedrig wird. Allenfalls lässt sich durch eine Dampfbeimischung oder im Grenzfall durch reine Dampfkühlung mehr Brennluft über die Brenner führen.The basic circuit of the gas turbine group is suitable both for a single-fired gas turbine and for one with sequential combustion. The essential aspects of the invention can be seen in the fact that in a gas turbine with steam injection, the compressor outlet temperature can be lowered, without the efficiency is deteriorated by a cooling air cooler. In the first part of the compression evaporative cooling is accomplished by a metered water injection. The decline in compressor power requirements and the additional fuel requirement are roughly in line with the efficiency of a gas turbine with steam injection. For moderate turbine inlet temperatures of 1200-1300 ° C, the measure achieves a further increase in power without the excess air coefficient in the combustion chamber becoming too low. At most, can be carried out by a steam admixing or in the borderline case by pure steam cooling more combustion air over the burner.
Die erfindungsgemässe Schaltung kommt deshalb ohne einen Kühlluftkühler aus, weil die Temperatur der Luft im Verdichter tief bleibt, somit ist diese Luft unmittelbar für den Einsatz als Kühlmedium tauglich.Therefore, the circuit according to the invention does not require a cooling air cooler because the temperature of the air in the compressor remains low, so this air is directly suitable for use as a cooling medium.
Vorteilhafte und zweckmässige Weiterbildungen der erfindungsgemässen Aufgabenlösung sind in den weiteren Ansprüchen gekennzeichnet. Advantageous and expedient developments of the task solution according to the invention are characterized in the further claims.
Im Folgenden werden anhand der Zeichnung Ausführungsbeispiele der Erfindung dargestellt und näher erläutert. Alle für das unmittelbare Verständnis der Erfindung nicht erforderlichen Elemente sind fortgelassen. Die Strömungsrichtung der Medien ist mit Pfeilen angegeben.In the following, embodiments of the invention are illustrated and explained in more detail with reference to the drawing. All elements not required for the immediate understanding of the invention are omitted. The flow direction of the media is indicated by arrows.
Kurze Beschreibung der ZeichnungShort description of the drawing
Es zeigt:It shows:
Wege zur Ausführung der Erfindung, gewerbliche VerwendbarkeitWays to carry out the invention, industrial usability
Kühlung der mit höherem Druck betriebenen ersten Turbine
Die Gasturbogruppe ist mit einer Gegendruckturbine
Von diesem Dampf
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Verdichtercompressor
- 22
- Angesaugte LuftSucked air
- 33
- Verdichtete LuftCompressed air
- 44
- Erste BrennkammerFirst combustion chamber
- 55
- Brennstoff, Brennstoffzuführung, BrennstofflanzeFuel, fuel supply, fuel lance
- 66
- Heissgasehot gases
- 77
- Erste TurbineFirst turbine
- 88th
- Teilentspannte HeissgasePartially released hot gases
- 99
- Zweite BrennkammerSecond combustion chamber
- 1010
- Brennstoff, Brennstoffzuführung, BrennstofflanzeFuel, fuel supply, fuel lance
- 1111
- Heissgasehot gases
- 1212
- Zweite TurbineSecond turbine
- 1313
- Abgaseexhaust
- 1414
- Abhitzedampferzeugerheat recovery steam generator
- 14a14a
- Economizereconomizer
- 14b14b
- HochdruckstufeHigh pressure stage
- 1515
- Rauchgasefumes
- 1616
- Regelorganregulating element
- 1717
- Regelorganregulating element
- 1818
- Wellewave
- 1919
- Generatorgenerator
- 2020
- Überhitzter DampfOverheated steam
- 2222
- Kühlluftcooling air
- 2323
- Kühlluftcooling air
- 2424
- Heisswassermenge aus dem EconomizerHot water quantity from the economizer
- 2525
- Wasserwater
- 2626
- Frischwasserfresh water
- 2727
- Förderpumpefeed pump
- 2828
- GegendruckturbineBack pressure turbine
- 2929
- Dampf aus der GegendruckturbineSteam from the back pressure turbine
- 3030
-
Abzweigung einer Dampfmenge aus
29 Branch of a quantity ofsteam 29
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19900026.3A DE19900026B4 (en) | 1999-01-02 | 1999-01-02 | Gas turbine with steam injection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19900026.3A DE19900026B4 (en) | 1999-01-02 | 1999-01-02 | Gas turbine with steam injection |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19900026A1 DE19900026A1 (en) | 2000-07-06 |
DE19900026B4 true DE19900026B4 (en) | 2016-01-21 |
Family
ID=7893540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19900026.3A Expired - Fee Related DE19900026B4 (en) | 1999-01-02 | 1999-01-02 | Gas turbine with steam injection |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE19900026B4 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10116117A1 (en) * | 2001-03-30 | 2002-10-10 | Alstom Switzerland Ltd | Cooling thermally loaded structures of power generation system involves regulating partly compressed air pressure or mass flow by injecting water into compressor or induction flow |
CN1701168A (en) * | 2001-10-17 | 2005-11-23 | 阿尔斯通技术有限公司 | Method for conditioning a compressor airflow and device therefor |
DE10153911B4 (en) * | 2001-11-02 | 2010-08-19 | Alstom Technology Ltd. | Fastening means for injection nozzles in an air intake duct of a turbomachine |
GB2382847A (en) * | 2001-12-06 | 2003-06-11 | Alstom | Gas turbine wet compression |
GB2382848A (en) | 2001-12-06 | 2003-06-11 | Alstom | Gas turbine wet compression |
AU2002342497A1 (en) | 2002-06-13 | 2003-12-31 | Alstom Technology Ltd | Method for operating a gas turbine installation, and gas turbine installation |
US7033135B2 (en) * | 2003-11-10 | 2006-04-25 | General Electric Company | Method and apparatus for distributing fluid into a turbomachine |
WO2006119409A2 (en) | 2005-05-02 | 2006-11-09 | Vast Power Portfolio, Llc | West compression apparatus and method |
EP1990578A1 (en) | 2007-05-08 | 2008-11-12 | ALSTOM Technology Ltd | Gas turbine with water injection |
JP5400969B2 (en) * | 2010-09-30 | 2014-01-29 | 株式会社日立製作所 | Gas turbine system, control device for gas turbine system, and control method for gas turbine system |
EP2559867A1 (en) | 2011-08-19 | 2013-02-20 | Alstom Technology Ltd | Method for generating electrical energy with a combination power plant and combination power plant and device for carrying out the method |
US20130199150A1 (en) * | 2012-02-03 | 2013-08-08 | General Electric Company | Steam injection assembly for a combined cycle system |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1239888B (en) * | 1961-12-15 | 1967-05-03 | Prvni Brnenska Strojirna | Gas steam turbine plant |
US5271215A (en) * | 1991-03-18 | 1993-12-21 | Gaz De France | Natural gas stream turbine system operating with a semi-open cycle |
US5349810A (en) * | 1993-02-16 | 1994-09-27 | Nykomb Synergetics Aktiebolag | Humid air turbine (HAT) cycle power process |
DE19508018A1 (en) * | 1995-03-07 | 1996-09-12 | Abb Management Ag | Process for operating a power plant |
US5579631A (en) * | 1994-04-28 | 1996-12-03 | Westinghouse Electric Corporation | Steam cooling of gas turbine with backup air cooling |
EP0770771A1 (en) * | 1995-10-26 | 1997-05-02 | Asea Brown Boveri Ag | Compressor with intercooling |
EP0781909A2 (en) * | 1995-12-28 | 1997-07-02 | Hitachi, Ltd. | Gas turbine with water injection |
EP0795685A1 (en) * | 1996-03-14 | 1997-09-17 | Asea Brown Boveri Ag | Multi-staged gas-turbine with steam cooling and feeding into the combustor |
DE19654472A1 (en) * | 1996-12-27 | 1998-07-02 | Asea Brown Boveri | Process for cooling thermally highly loaded units of a gas turbine group |
-
1999
- 1999-01-02 DE DE19900026.3A patent/DE19900026B4/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1239888B (en) * | 1961-12-15 | 1967-05-03 | Prvni Brnenska Strojirna | Gas steam turbine plant |
US5271215A (en) * | 1991-03-18 | 1993-12-21 | Gaz De France | Natural gas stream turbine system operating with a semi-open cycle |
US5349810A (en) * | 1993-02-16 | 1994-09-27 | Nykomb Synergetics Aktiebolag | Humid air turbine (HAT) cycle power process |
US5579631A (en) * | 1994-04-28 | 1996-12-03 | Westinghouse Electric Corporation | Steam cooling of gas turbine with backup air cooling |
DE19508018A1 (en) * | 1995-03-07 | 1996-09-12 | Abb Management Ag | Process for operating a power plant |
EP0770771A1 (en) * | 1995-10-26 | 1997-05-02 | Asea Brown Boveri Ag | Compressor with intercooling |
EP0781909A2 (en) * | 1995-12-28 | 1997-07-02 | Hitachi, Ltd. | Gas turbine with water injection |
EP0795685A1 (en) * | 1996-03-14 | 1997-09-17 | Asea Brown Boveri Ag | Multi-staged gas-turbine with steam cooling and feeding into the combustor |
DE19654472A1 (en) * | 1996-12-27 | 1998-07-02 | Asea Brown Boveri | Process for cooling thermally highly loaded units of a gas turbine group |
Also Published As
Publication number | Publication date |
---|---|
DE19900026A1 (en) | 2000-07-06 |
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Representative=s name: ZIMMERMANN & PARTNER, 80331 MUENCHEN |
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