WO2011048520A3 - A method of increasing the performance of a carbonaceous fuel combusting boiler system - Google Patents

A method of increasing the performance of a carbonaceous fuel combusting boiler system Download PDF

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Publication number
WO2011048520A3
WO2011048520A3 PCT/IB2010/054464 IB2010054464W WO2011048520A3 WO 2011048520 A3 WO2011048520 A3 WO 2011048520A3 IB 2010054464 W IB2010054464 W IB 2010054464W WO 2011048520 A3 WO2011048520 A3 WO 2011048520A3
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
steam
furnace
boiler
gas channel
Prior art date
Application number
PCT/IB2010/054464
Other languages
French (fr)
Other versions
WO2011048520A2 (en
Inventor
Zhen Fan
Horst Hack
Andrew Seltzer
Original Assignee
Foster Wheeler Energy Corporation
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 Foster Wheeler Energy Corporation filed Critical Foster Wheeler Energy Corporation
Publication of WO2011048520A2 publication Critical patent/WO2011048520A2/en
Publication of WO2011048520A3 publication Critical patent/WO2011048520A3/en

Links

Classifications

    • 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/16—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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
    • 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
    • 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
    • F01K13/02—Controlling, e.g. stopping or starting
    • 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
    • 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
    • F01K7/40—Use of two or more feed-water heaters in series

Abstract

A method of increasing the power of a carbonaceous fuel combusting boiler system. The method includes the steps of (a) feeding carbonaceous fuel (16) into a furnace (14) of the boiler plant at a fuel feeding rate, (b) feeding oxidant gas (18) into the furnace for combusting the fuel to produce exhaust gas, (c) discharging the exhaust gas from the furnace via an exhaust gas channel (20), (d) conveying a stream of feedwater from a boiler economizer (38) arranged in the exhaust gas channel to evaporating and superheating heat exchange surfaces arranged in the furnace and in the exhaust gas channel for converting the feedwater to superheated steam, (e) expanding the superheated steam in a high-pressure steam turbine (50) for generating power, (f) extracting steam (74) from the high-pressure steam turbine at a decreased rate for preheating the feedwater, (g) conveying steam from the high-pressure steam turbine at an increased rate to a reheater (36) arranged in the exhaust gas channel for generating reheated steam, (h) expanding the reheated steam in an intermediate pressure steam turbine (52) for generating power, and (i) conveying the exhaust gas in the exhaust gas channel from the reheater through a boiler economizer to a gas heater (42). The method also includes increasing the heat exchange surface area of at least one of the reheater and the boiler economizer and/ or adding a high pressure economizer downstream of the boiler economizer and upstream of the gas heater.
PCT/IB2010/054464 2009-10-22 2010-10-04 A method of increasing the performance of a carbonaceous fuel combusting boiler system WO2011048520A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/603,869 US20110094228A1 (en) 2009-10-22 2009-10-22 Method of Increasing the Performance of a Carbonaceous Fuel Combusting Boiler System
US12/603,869 2009-10-22

Publications (2)

Publication Number Publication Date
WO2011048520A2 WO2011048520A2 (en) 2011-04-28
WO2011048520A3 true WO2011048520A3 (en) 2013-08-01

Family

ID=43897209

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/054464 WO2011048520A2 (en) 2009-10-22 2010-10-04 A method of increasing the performance of a carbonaceous fuel combusting boiler system

Country Status (2)

Country Link
US (1) US20110094228A1 (en)
WO (1) WO2011048520A2 (en)

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JP5050071B2 (en) * 2010-03-29 2012-10-17 株式会社日立製作所 Boiler equipment
US20110271676A1 (en) * 2010-05-04 2011-11-10 Solartrec, Inc. Heat engine with cascaded cycles
EP2682568B1 (en) * 2012-01-19 2016-03-30 Alstom Technology Ltd Heating system for a thermal electric power station water circuit
CN102661600A (en) * 2012-04-27 2012-09-12 杭州锅炉集团股份有限公司 Clean-burning blast furnace gas boiler
US9388978B1 (en) 2012-12-21 2016-07-12 Mitsubishi Hitachi Power Systems Americas, Inc. Methods and systems for controlling gas temperatures
US20160033128A1 (en) * 2013-03-21 2016-02-04 Siemens Aktiengesellschaft Power generation system and method to operate
WO2014146861A1 (en) * 2013-03-21 2014-09-25 Siemens Aktiengesellschaft Power generation system and method to operate
FR3005143A1 (en) * 2013-04-25 2014-10-31 Pyraine THERMAL INSTALLATION FOR THE PRODUCTION OF ELECTRICITY BY COMBUSTION
JP5624646B1 (en) 2013-05-23 2014-11-12 電源開発株式会社 Thermal power plant and operation method of thermal power plant.
EP2942497B1 (en) * 2014-05-08 2018-10-31 General Electric Technology GmbH Oxy boiler power plant oxygen feed system heat integration
EP3098397A1 (en) * 2015-05-26 2016-11-30 Alstom Technology Ltd Lignite drying integration with a water/steam power cycle
CN106838863B (en) * 2016-11-29 2020-05-08 中冶南方都市环保工程技术股份有限公司 Method for generating electricity by adopting low-calorific-value gas
CN106594699B (en) * 2016-11-29 2019-10-22 中冶南方都市环保工程技术股份有限公司 Low-heat value gas electricity generation system
WO2020073830A1 (en) 2018-10-10 2020-04-16 北京润能科技有限公司 Method for improving rankine cycle efficiency
CN111946412A (en) * 2020-07-06 2020-11-17 东方电气集团东方汽轮机有限公司 Back pressure type steam turbine system with heat regeneration system
CN113090348B (en) * 2021-04-13 2023-05-23 中国科学院工程热物理研究所 Multistage impeller unit of integrated heat exchanger of integral type
CN113405086B (en) * 2021-06-21 2022-02-11 北京天瑞泰达电力工程有限公司 Steam mixing system for realizing denitration and temperature raising and adjusting method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447492A (en) * 1967-12-27 1969-06-03 Combustion Eng Heat exchange system for heating mill air and for reheating stack gas subsequent to wet scrubbing
NL6817712A (en) * 1968-09-11 1970-03-13
US3818872A (en) * 1973-06-29 1974-06-25 Combustion Eng Economizer bypass for increased furnace wall protection
US6032468A (en) * 1997-05-17 2000-03-07 Asea Brown Boveri Ag Method and device for generating steam

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EP1241323A1 (en) * 2001-03-15 2002-09-18 Siemens Aktiengesellschaft Method for operating a steam power plant and steam power plant
EP2034137A1 (en) * 2007-01-30 2009-03-11 Siemens Aktiengesellschaft Method for operating a gas and steam turbine plant and the correspondingly designed gas and steam turbine plant
JP4619398B2 (en) * 2007-11-30 2011-01-26 日立Ｇｅニュークリア・エナジー株式会社 Nuclear power plant operating method and nuclear power plant
US20100077722A1 (en) * 2008-09-30 2010-04-01 General Electric Company Peak load management by combined cycle power augmentation using peaking cycle exhaust heat recovery

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447492A (en) * 1967-12-27 1969-06-03 Combustion Eng Heat exchange system for heating mill air and for reheating stack gas subsequent to wet scrubbing
NL6817712A (en) * 1968-09-11 1970-03-13
US3818872A (en) * 1973-06-29 1974-06-25 Combustion Eng Economizer bypass for increased furnace wall protection
US6032468A (en) * 1997-05-17 2000-03-07 Asea Brown Boveri Ag Method and device for generating steam

Also Published As

Publication number Publication date
US20110094228A1 (en) 2011-04-28
WO2011048520A2 (en) 2011-04-28

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