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FI20106010L - Method for recovering heat from flue gas and steam power plant - Google Patents

Method for recovering heat from flue gas and steam power plant Download PDF

Info

Publication number
FI20106010L
FI20106010L FI20106010A FI20106010A FI20106010L FI 20106010 L FI20106010 L FI 20106010L FI 20106010 A FI20106010 A FI 20106010A FI 20106010 A FI20106010 A FI 20106010A FI 20106010 L FI20106010 L FI 20106010L
Authority
FI
Finland
Prior art keywords
flue gas
air
recirculated
power plant
steam power
Prior art date
Application number
FI20106010A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI20106010A0 (en
FI20106010A7 (en
Inventor
Markku Raiko
Original Assignee
Aaf Consult Oy
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 Aaf Consult Oy filed Critical Aaf Consult Oy
Priority to FI20106010A priority Critical patent/FI20106010L/en
Publication of FI20106010A0 publication Critical patent/FI20106010A0/en
Priority to PCT/FI2011/050790 priority patent/WO2012042101A1/en
Publication of FI20106010A7 publication Critical patent/FI20106010A7/en
Publication of FI20106010L publication Critical patent/FI20106010L/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L15/00—Heating of air supplied for combustion
    • F23L15/04—Arrangements of recuperators
    • 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating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
    • 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
    • F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
    • F01K17/06—Returning energy of steam, in exchanged form, to process, e.g. use of exhaust steam for drying solid fuel or plant
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/36—Water and air preheating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/36—Water and air preheating systems
    • F22D1/38—Constructional features of water and air preheating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/15043—Preheating combustion air by heat recovery means located in the chimney, e.g. for home heating devices
    • 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
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air Supply (AREA)

Abstract

The invention relates to a method for recovering heat from flue gas and to a steam power plant. In the method, combustion air is preheated in a flue gas LUVO (10) by means of flue gases (FH) exiting a boiler (11) and feed water (W) entering the boiler (11) is preheated by means of steams bled from a steam turbine. A part of heated air (AH) having passed through the flue gas LUVO (10) is conveyed as recirculated air (AR) within preheated air (Ac) to be fed to the flue gas LUVO (10) and recirculated air (AR) is controlled to pass via at least one recirculated-air heat exchanger (8a, 8b), in which recirculated-air heat exchanger (8a, 8b) recirculated air (AR) is cooled by means of feed water entering the boiler.
FI20106010A 2010-09-30 2010-09-30 Method for recovering heat from flue gas and steam power plant FI20106010L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI20106010A FI20106010L (en) 2010-09-30 2010-09-30 Method for recovering heat from flue gas and steam power plant
PCT/FI2011/050790 WO2012042101A1 (en) 2010-09-30 2011-09-15 Method for recovering heat from flue gas and steam power plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20106010A FI20106010L (en) 2010-09-30 2010-09-30 Method for recovering heat from flue gas and steam power plant

Publications (3)

Publication Number Publication Date
FI20106010A0 FI20106010A0 (en) 2010-09-30
FI20106010A7 FI20106010A7 (en) 2012-03-31
FI20106010L true FI20106010L (en) 2012-03-31

Family

ID=42829738

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20106010A FI20106010L (en) 2010-09-30 2010-09-30 Method for recovering heat from flue gas and steam power plant

Country Status (2)

Country Link
FI (1) FI20106010L (en)
WO (1) WO2012042101A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103375792A (en) * 2013-08-05 2013-10-30 华北电力大学 Engine-boiler coupled deep waste heat utilization system for air cooling unit
CN104949101B (en) * 2015-04-22 2017-01-18 华北电力大学 Secondary reheat unit economizer variable-area waste heat utilizing system
CN106439899B (en) * 2016-08-31 2019-01-11 中国大唐集团科学技术研究院有限公司 Air cooling unit turbine exhaust heat utilizes system
CN106500127B (en) * 2017-01-06 2021-09-10 上海明华电力科技有限公司 Bypass air preheater heat recovery system and method
CN114060113B (en) * 2021-11-19 2022-07-22 浙江大学 Garbage power plant flow optimization method and device based on comprehensive performance quantitative characterization

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835650A (en) * 1973-05-03 1974-09-17 Gen Electric Steam air preheater for a steam boiler system
DE3308028A1 (en) * 1983-03-07 1984-09-13 Rudolf Dr. 6800 Mannheim Wieser Industrial steam power installation
DE4335216C2 (en) * 1993-05-10 2003-04-24 Saar En Gmbh Steam power plant for generating electrical energy
FI101163B (en) * 1993-10-19 1998-04-30 Imatran Voima Oy Coupling construction between a steam boiler and a steam turbine and the methods for preheating the feed water to the steam turbine
FI111288B (en) * 2000-12-29 2003-06-30 Fortum Oyj Coupling design between a boiler and a steam turbine and method of preheating the steam turbine's feed water and its regulation

Also Published As

Publication number Publication date
FI20106010A0 (en) 2010-09-30
WO2012042101A1 (en) 2012-04-05
FI20106010A7 (en) 2012-03-31

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