[특허]Gas turbine having water injection unit

[미국특허] Gas turbine having water injection unit 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-007/00
출원번호	US-0895848 (2004-07-22)
우선권정보	JP-9-174667(1997-06-30); JP-9-174668(1997-06-30)
발명자 / 주소	Horii,Nobuyuki Takehara,Isao Murata,Hidetaro Utamura,Motoaki Kuwahara,Takaaki Sasada,Tetsuo Hirose,Fumiyuki Katoh,Yasuhiro
출원인 / 주소	Hitachi, Ltd.
대리인 / 주소	Mattingly, Stanger, Malur &
인용정보	피인용 횟수 : 46 인용 특허 : 13

초록 ▼

A gas turbine comprises a compressor for compressing a gas supplied therein and discharging the compressed gas, a combustor in which the discharged gas from the compressor and a fuel are combusted, a turbine to be driven by a combustion gas from the combustor, and a water injection unit which injects water into the gas to be supplied to the compressor, thereby lowering the temperature of the gas to be introduced into the compressor to a temperature lower than the atmospheric temperature, and causing water droplets having been injected in the gas and within the compressor to be vaporized while flowing down therein, wherein the quantity of water spray injection is controlled while monitoring operational conditions of the gas turbine.

대표청구항 ▼

What is claimed is: 1. A gas turbine having a compressor for compressing an air supplied therein and discharging a compressed air, a combustor for combusting the compressed gas from said compressor and a fuel and a gas turbine to be driven by a combustion gas from said combustor, characterized by comprising: an injection unit, arranged at an upstream side of said compressor and constructed so that water droplets are sprayed into the air to be supplied to said compressor to lower the temperature of the air to be supplied into said compressor than an atmospheric temperature and the sprayed water droplets introduced into said compressor with the air having lowered in temperature are evaporated during passage through said compressor, said injection unit having a plurality of spray nozzles for spraying water droplets; feed water headers for supplying spray water to said plurality of spray nozzles, said feed water headers being composed of a main feed water header and a plurality of auxiliary feed water headers each branched from said main feed water header; and a controlling unit for controlling said injection unit so that the number of said spraying nozzles spraying water droplets more than a prescribed quantity of water droplets becomes more than the number of said spraying nozzles spraying water droplets less than the prescribed quantity of water droplets, and the number of said spraying nozzles is changed so that a change in particle size of water droplets, caused by a change in quantity of the spray water becomes smaller than a prescribed value. 2. A gas turbine having a compressor for compressing an air supplied therein and discharging a compressed air, a combustor for combusting the compressed gas from said compressor and a fuel and a gas turbine to be driven by a combustion gas from said combustor, characterized by comprising: an injection unit, arranged within an intake air duct at an upstream side of said compressor and constructed so that water droplets are sprayed into the air to be supplied to the compressor to lower the temperature of the air to be supplied into said compressor than an atmospheric temperature and the sprayed water droplets introduced into said compressor with the air having lowered in temperature are evaporated during passage through said compressor; and a controlling unit, having a plurality of air temperature detectors arranged in said intake air duct in a peripheral direction, for controlling said injection unit so as to decrease a quantity of water spray when a deviation in detected value reaches to a prescribed value, during operation of spraying water droplets.

이 특허에 인용된 특허 (13) 인용/피인용 타임라인 분석

Smith Jack R. (Pittsburgh PA), Control apparatus for matching the exhaust flow of a gas turbine employed in a combined cycle electric power generating.
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Reed Terry J. (North Huntingdon PA) Smith Jack R. (Pittsburgh PA), Control apparatus for modulating the inlet guide vanes of a gas turbine employed in a combined cycle electric power gene.
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Munk Michael (130 Gun Club Rd. Stamford CT 06903), Controlled fog injection for internal combustion system.
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Martens Alan (Wayne PA) Radkevich Thomas J. (Wilmington DE) Smith Jack R. (Ross Township ; Allegheny County PA), Gas turbine and combined cycle power plant having reduced emission of nitrogen oxide and improved coolant injection flow.
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Davis Thomas L. (Raleigh NC) Shell John P. (Raleigh NC) Beadle Todd W. (Wilkesboro NC) McAllister Keith S. (Raleigh NC) Hobbs Alexander O. (Cary NC), Gas turbine inlet air combined pressure boost and cooling method and apparatus.
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Reens Daniel J. (Ridgefield CT), Humidifying system.
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Groff Gordon S. (Lancaster PA) Herr Dean S. (Willow Street PA), In duct atomizing humidification and evaporative cooling system.
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Munk Michael (28 Dorchester Dr. Rye Brook NY 10573), Internal combustion engine system and method with reduced noxious emissions.
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Munk Michael (28 Dorchester Dr. Rye Brook NY 10573), Internal combustion engine system and method with reduced noxious emissions.
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Zachary Richard E. ; Hudson Roger D., Method and apparatus for achieving power augmentation in gas turbines via wet compression.
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Zachary Richard E. ; Hudson Roger D., Method and apparatus for achieving power augmentation in gas turbines via wet compression.
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Early Brian J. (Trumbull CT) Reens Daniel J. (Ridgefield CT) Karnoff Robert S. (Monroe CT), Method and apparatus for evaporative cooling of air leading to a gas turbine engine.
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Cloyd Scott T. (Lake Mary FL) Hindle Robert A. (Cocoa Beach FL) Brown Stephen W. (Oviedo FL), System for capturing heat transferred from compressed cooling air in a gas turbine.
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McBride, Troy O.; Cook, Robert; Bollinger, Benjamin R.; Doyle, Lee; Shang, Andrew; Wilson, Timothy; Scott, Michael Neil; Magari, Patrick; Cameron, Benjamin; Deserranno, Dimitri, Energy storage and generation systems and methods using coupled cylinder assemblies.
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McBride, Troy O.; Bollinger, Benjamin R., Energy storage and recovery utilizing low-pressure thermal conditioning for heat exchange with high-pressure gas.
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McBride, Troy O.; Bell, Alexander; Bollinger, Benjamin R., Forming liquid sprays in compressed-gas energy storage systems for effective heat exchange.
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Miller, Karen Warren; Yu, Lijie; Iasillo, Robert, Gas turbine combustion profile monitoring.
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Drori, Zeev; Samoylova, Anastasia; Sizov, Vladimir, Gas turbine engine system with water recycling feature.
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Bollinger, Benjamin R.; McBride, Troy O.; Cameron, Benjamin; Magari, Patrick; Izenson, Michael; Chen, Weibo, Heat exchange with compressed gas in energy-storage systems.
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McBride, Troy O.; Scott, Michael Neil; Modderno, Jeffrey; Bollinger, Benjamin R., High-efficiency energy-conversion based on fluid expansion and compression.
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Bollinger, Benjamin; Magari, Patrick; McBride, Troy O., High-efficiency heat exchange in compressed-gas energy storage systems.
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Bolis,Giacomo; Hagstr��m,Gustav; Hoffmann,J��rgen; Wasmuth,Thorsten, Method and apparatus for achieving power augmentation in gas turbine using wet compression.
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Hoffmann, Juergen; Matz, Charles Raymond, Method of controlling the injection of liquid into an inflow duct of a prime mover or driven machine.
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Miller, Karen Warren; Iasillo, Robert Joseph; Lemmon, Matthew Francis, Method of monitoring for combustion anomalies in a gas turbomachine and a gas turbomachine including a combustion anomaly detection system.
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McBride, Troy O.; Bollinger, Benjamin, Systems and methods for energy storage and recovery using compressed gas.
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McBride, Troy O.; Bollinger, Benjamin R., Systems and methods for energy storage and recovery using compressed gas.
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McBride, Troy O.; Bollinger, Benjamin R.; Schaefer, Michael; Kepshire, Dax, Systems and methods for energy storage and recovery using gas expansion and compression.
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McBride, Troy O.; Bollinger, Benjamin R.; Izenson, Michael; Chen, Weibo; Magari, Patrick; Cameron, Benjamin; Cook, Robert; Richter, Horst, Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression.
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McBride, Troy O.; Bollinger, Benjamin R.; Izenson, Michael; Chen, Weibo; Magari, Patrick; Cameron, Benjamin; Cook, Robert; Richter, Horst, Systems and methods for energy storage and recovery using rapid isothermal gas expansion and compression.
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[미국특허] Gas turbine having water injection unit 원문보기

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