JP2014084820A - 亜臨界圧高温火力発電プラント及び亜臨界圧高温変圧運転貫流ボイラ - Google Patents
亜臨界圧高温火力発電プラント及び亜臨界圧高温変圧運転貫流ボイラ Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01K7/22—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F01K25/103—Carbon dioxide
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- F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
- F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
- F01K3/185—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters using waste heat from outside the plant
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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
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
- F01K7/38—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B29/00—Steam boilers of forced-flow type
- F22B29/06—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes
- F22B29/061—Construction of tube walls
- F22B29/064—Construction of tube walls involving horizontally- or helically-disposed water tubes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B29/00—Steam boilers of forced-flow type
- F22B29/06—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes
- F22B29/12—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes operating with superimposed recirculation during starting and low-load periods, e.g. composite boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
- F22B35/06—Control systems for steam boilers for steam boilers of forced-flow type
- F22B35/10—Control systems for steam boilers for steam boilers of forced-flow type of once-through type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G1/00—Steam superheating characterised by heating method
- F22G1/12—Steam superheating characterised by heating method by mixing steam with furnace gases or other combustion products
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G5/00—Controlling superheat temperature
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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
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/006—Auxiliaries or details not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B29/00—Steam boilers of forced-flow type
- F22B29/06—Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes
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- 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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- 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
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- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S122/00—Liquid heaters and vaporizers
- Y10S122/04—Once through boilers
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Abstract
効率向上を効果的に図ることが可能な、発電出力が中小容量(単機の発電装置の発電出力が10万KW級〜40万KW級)の火力発電プラント及びそれに用いるボイラを提供する。
【解決手段】
ボイラで発生させ蒸気タービンに供給する蒸気条件を、亜臨界圧・高温(タービン入り口温度593℃以上)とする。例えば、亜臨界圧高温火力発電プラントは、燃焼ボイラ設備、蒸気タービン発電機設備、復水給水設備などから構成され、ボイラ設備は、微粉炭機、バーナ、火炉、スパイラル水壁管、節炭器、高温過熱器、高温再熱器、気水分離器などから構成され、スパイラル水壁管の傾斜角を10〜20度に設定する。
【選択図】 図1
Description
(1)火炉出口のガス温度が低下傾向になり、過熱器の熱吸収量を増加させる対策が必要となる。
(2)火炉熱吸収量増加に伴う火炉メタル温度上昇を許容値内にする必要がある。
(3)火炉の熱吸収量が増加するため、過熱器での温度上昇を有利にする反面、気水分離器での過熱度が上昇し、過大になる可能性がある。
(4)プラントの全負荷運転領域で亜臨界圧貫流運転を行うため常に核沸騰状態を維持して膜沸騰を防止する必要がある。
Claims (8)
- 燃焼ボイラ設備、蒸気タービン発電機設備、復水給水設備で構成され、
前記燃焼ボイラ設備は、蒸気条件が亜臨界圧593℃以上の過熱蒸気を供給する高温過熱器と、蒸気条件が593℃以上の再熱蒸気を供給する高温再熱器とを備え、
前記蒸気タービン発電機設備は、前記蒸気条件が亜臨界圧593℃以上の過熱蒸気で駆動される高圧蒸気タービンと、前記蒸気条件が593℃以上の再熱蒸気で駆動される再熱中圧蒸気タービンを備えることを特徴とする亜臨界圧高温火力発電プラント。 - 請求項1において、前記燃焼ボイラ設備は、石炭を主たる燃料とする微粉炭燃焼ボイラであり、かつ、ボイラ火炉水壁部を貫流スパイラル方式とした変圧運転貫流ボイラであることを特徴とする亜臨界圧高温火力発電プラント。
- 請求項2において、前記亜臨界圧高温火力発電プラントの定格出力が10万kWから40万kWの範囲内であることを特徴とする亜臨界圧高温火力発電プラント。
- 請求項3において、前記燃焼ボイラ設備は、前記燃料として、バイオマスや製鉄副生ガスを混焼することを特徴とする亜臨界圧高温火力発電プラント。
- 請求項3において、複数段に配列され、各段において対向配置された複数の燃焼バーナと、前記各段に対応して設けられ、各段において対向配置された前記燃焼バーナに燃料を振り分けるようにした複数の微粉炭機を有することを特徴とする亜臨界圧高温火力発電プラント。
- 請求項3において、前記火炉水壁部を構成するスパイラル水壁管の傾きを水平方向から10〜20°とすることを特徴とする亜臨界圧高温火力発電プラント。
- 単機の発電装置の定格出力が10万kWから40万kWの範囲内の火力発電プラントに用いられる亜臨界圧高温変圧運転貫流ボイラであって、
微粉炭機、バーナ、火炉、火炉水壁管、節炭器、高温過熱器、高温再熱器、気水分離器を備え、
前記火炉水壁部は貫流スパイラル方式であり、
前記高温過熱器は、蒸気条件が亜臨界圧593℃以上の過熱蒸気を発生し、前記高温再熱器は、蒸気条件が593℃以上の再熱蒸気を発生するようにしたことを特徴とする亜臨界圧高温変圧運転貫流ボイラ。 - 請求項7において、前記火炉水壁管のスパイラル水壁管の傾きを水平方向から10〜20°とすることを特徴とする亜臨界圧高温変圧運転貫流ボイラ。
Priority Applications (7)
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JP2012235471A JP5931693B2 (ja) | 2012-10-25 | 2012-10-25 | 中小容量火力発電プラントのリプレース又はリノベーションの方法及び中小容量火力発電プラント用ボイラのリプレース又はリノベーションの方法 |
EP13183065.5A EP2725205A1 (en) | 2012-10-25 | 2013-09-05 | Subcritical pressure high-temperature steam power plant and subcritical pressure high-temperature variable pressure operation once-through boiler |
KR1020130106537A KR20140052826A (ko) | 2012-10-25 | 2013-09-05 | 아임계압 고온 화력 발전 플랜트 및 아임계압 고온 변압 운전 관류 보일러 |
RU2013140948/06A RU2584745C2 (ru) | 2012-10-25 | 2013-09-05 | Высокотемпературная паросиловая установка докритического давления и высокотемпературный прямоточный котел докритического давления, работающий при переменном давлении |
CN201310403186.0A CN103775132B (zh) | 2012-10-25 | 2013-09-06 | 亚临界压力高温火力发电成套设备和亚临界压力高温变压运转贯流锅炉 |
US14/019,802 US9784137B2 (en) | 2012-10-25 | 2013-09-06 | Subcritical pressure high-temperature steam power plant and subcritical pressure high-temperature variable pressure operation once-through boiler |
KR1020150100901A KR20150088775A (ko) | 2012-10-25 | 2015-07-16 | 아임계압 고온 화력 발전 플랜트 및 아임계압 고온 변압 운전 관류 보일러 |
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JP2012235471A JP5931693B2 (ja) | 2012-10-25 | 2012-10-25 | 中小容量火力発電プラントのリプレース又はリノベーションの方法及び中小容量火力発電プラント用ボイラのリプレース又はリノベーションの方法 |
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JP2016029728A Division JP2016148343A (ja) | 2016-02-19 | 2016-02-19 | 亜臨界圧高温火力発電プラント及び亜臨界圧高温変圧運転貫流ボイラ |
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US (1) | US9784137B2 (ja) |
EP (1) | EP2725205A1 (ja) |
JP (1) | JP5931693B2 (ja) |
KR (2) | KR20140052826A (ja) |
CN (1) | CN103775132B (ja) |
RU (1) | RU2584745C2 (ja) |
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JP6282238B2 (ja) * | 2014-03-31 | 2018-02-21 | トクデン株式会社 | 過熱蒸気再利用装置及びその使用方法 |
WO2016138342A1 (en) * | 2015-02-27 | 2016-09-01 | Electric Power Research Institute, Inc. | Reheating of a working fluid within a turbine system for power generation |
CN106838863B (zh) * | 2016-11-29 | 2020-05-08 | 中冶南方都市环保工程技术股份有限公司 | 采用低热值煤气发电的方法 |
US11137220B2 (en) * | 2018-06-18 | 2021-10-05 | Purdue Research Foundation | Boiling processes and systems therefor having hydrophobic boiling surfaces |
CN112610945B (zh) * | 2020-12-04 | 2022-08-16 | 华能国际电力股份有限公司德州电厂 | 一种燃煤锅炉水冷壁局部环境中h2s含量的确定方法和设备 |
CN113587136B (zh) * | 2021-07-29 | 2024-05-17 | 王玉龙 | 燃煤火电厂入炉煤热值在线实时检测方法、系统及装置 |
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JP5357714B2 (ja) * | 2009-11-20 | 2013-12-04 | 三菱重工業株式会社 | ボイラ装置 |
US20120189460A1 (en) | 2011-01-21 | 2012-07-26 | General Electric Company | Welded Rotor, a Steam Turbine having a Welded Rotor and a Method for Producing a Welded Rotor |
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2013
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KR20150088775A (ko) | 2015-08-03 |
EP2725205A1 (en) | 2014-04-30 |
US20140116052A1 (en) | 2014-05-01 |
RU2013140948A (ru) | 2015-03-10 |
RU2584745C2 (ru) | 2016-05-20 |
US9784137B2 (en) | 2017-10-10 |
JP5931693B2 (ja) | 2016-06-08 |
KR20140052826A (ko) | 2014-05-07 |
CN103775132B (zh) | 2017-03-01 |
CN103775132A (zh) | 2014-05-07 |
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