WO1986007114A1 - Procede de production de courant et de chaleur au moyen d'une installation de chauffe a lit fluidise sous pression - Google Patents

Procede de production de courant et de chaleur au moyen d'une installation de chauffe a lit fluidise sous pression Download PDF

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Publication number
WO1986007114A1
WO1986007114A1 PCT/EP1986/000308 EP8600308W WO8607114A1 WO 1986007114 A1 WO1986007114 A1 WO 1986007114A1 EP 8600308 W EP8600308 W EP 8600308W WO 8607114 A1 WO8607114 A1 WO 8607114A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluidized bed
heat
water
flue gas
pressure
Prior art date
Application number
PCT/EP1986/000308
Other languages
German (de)
English (en)
Inventor
Willy Meyer
Erwin Wied
Peter Grziwa
Original Assignee
Saarberg-Interplan, Gesellschaft F. Rohstoff-, Ene
Inter-Power Technologie Gmbh
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 Saarberg-Interplan, Gesellschaft F. Rohstoff-, Ene, Inter-Power Technologie Gmbh filed Critical Saarberg-Interplan, Gesellschaft F. Rohstoff-, Ene
Publication of WO1986007114A1 publication Critical patent/WO1986007114A1/fr

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
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/061—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with combustion in a fluidised bed
    • F01K23/062—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with combustion in a fluidised bed the combustion bed being pressurised
    • 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
    • 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
    • F02C3/205—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 in a fluidised-bed combustor
    • 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
    • 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
    • F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
    • 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
    • Y02E20/14—Combined heat and power generation [CHP]

Definitions

  • the invention relates to a method for electricity and heat generation by means of a pressure-operated fluidized bed furnace, in which the hot flue gases produced in the fluidized bed furnace are dedusted, then expanded to perform work and then cooled in a heat exchanger.
  • Fluid bed furnaces have long been state of the art in numerous embodiments for different areas of application. Significant advantages can be seen in the fact that, in contrast to other types of combustion, low-value fuels with a high ballast content, such as ßallastkohle or processing exits, which are a by-product of hard coal processing and have not previously been used, but have been deposited, ver can be burned.
  • this type of furnace is comparatively environmentally friendly, since at the low combustion temperatures there are almost no thermal nitrogen oxides and the sulfur oxides can be bound in the combustion chamber by adding suitable absorption agents such as limestone.
  • Fluidized bed furnaces can be operated under atmospheric or overpressure conditions, in order to maintain the bed temperature, the heat generated is usually decoupled by means of so-called immersion heating surfaces, which are arranged in the fluidized bed and from a compressed working medium, e.g. Air for a gas turbine or water or water vapor for a steam turbine are flowed through.
  • a compressed working medium e.g. Air for a gas turbine or water or water vapor for a steam turbine are flowed through.
  • the working capacity of the flue gases can also be used to generate energy.
  • the invention is therefore based on the object of further developing the aforementioned method for generating electricity and heat by means of a pressure-operated fluidized bed furnace in such a way that the furnace can be operated in the broadest possible power range and with a high power density.
  • the water condensed out in the heat exchanger as a result of the cooling is again fed to the pressure fluidized bed combustion according to a further feature of the invention.
  • Separate preparation is usually not necessary lent, since the solid particles carried in the circulating water, such as dust or CaSO 4 , for the most part attach themselves to the bed material and are removed from the fluidized bed with the ash.
  • pre-cool the mixture of flue gas and water vapor leaving the fluidized bed firing before or also after its dedusting or partial dedusting and only then to feed it into the gas turbine.
  • the expansion in the turbine takes place even at a lower temperature, with the result that the material stress on the turbine is correspondingly reduced and residual amounts of dust in the working fluid prove to be less disruptive.
  • the heat generated in the course of pre-cooling at a relatively high temperature level can be used to generate steam.
  • FIG. 1 shows a pressure fluidized bed boiler 1 operated at a pressure of, for example, 10 bar, with an integrated fluidized bed 2.
  • the combustion air is used as the carrier gas, which is compressed in a compressor 3 and introduced into the fluidized bed via branch lines 4 in a manner known per se.
  • the fresh coal is fed into the fluidized bed 2 via a line 5 together with lime, which serves as an absorbent for the sulfur oxides and is supplied via a line 6.
  • Hot ash is passed through a pipe
  • Heat is coupled out by means of immersion heating surfaces 8, which are arranged within the fluidized bed and through which a heat transfer medium flows.
  • Compressed air can be used as the heat transfer medium as the working medium for a gas turbine, or else high-tension steam can be used as the working medium for a steam turbine.
  • water is first fed into line 5 via line 9 and then into fluidized bed 2 together with the fuel.
  • the performance of the fluidized bed combustion system can be increased considerably since it is now producing te additional amount of heat, without the temperature in the fluidized bed itself increasing, can be drawn off via the water vapor.
  • the water flowing in the line 9 can also be sprayed into the fluidized bed 2 via a spray nozzle arrangement 17.
  • the resulting mixture of flue gas and water vapor is first fed to a steam generator 11 via a line 10, there to e.g. Cooled 450 ° C, subjected to a coarse dust separation in a cyclone 12 and then in a turbine 13 to a pressure of e.g. 1.1 bar relaxed.
  • the energy obtained in the turbine is used both to drive the compressor 3 and to operate a generator 14.
  • the flue gas-water vapor mixture leaving the turbine 13 is now fed to the heat exchanger 15, there on e.g. Cooled 80 ° C and partially condensed.
  • the heat obtained in the heat exchanger 15, which also contains the heat of vaporization of the water, can e.g. continue to be used for district heating purposes.
  • the water required can at least partially also be used as "wet fuel”, e.g. as sewage sludge, as sludge from sedimentation tanks and as dried lignite.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

Dans un procédé de production de courant et de chaleur au moyen d'une installation de chauffe à lit fluidisé sous pression (1), de l'eau est introduite dans le lit fluidisé, et la vapeur d'eau engendrée, de concert (10) avec le gaz de fumée, est acheminée vers des appareils montés en aval pour dépoussiérage (12), détente (13) productrice d'un rendement, et refroidissement (15). L'introduction d'eau permet d'accroître la puissance volumique du lit fluidisé et facilite la régulation.
PCT/EP1986/000308 1985-05-23 1986-05-21 Procede de production de courant et de chaleur au moyen d'une installation de chauffe a lit fluidise sous pression WO1986007114A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3518512.0 1985-05-23
DE19853518512 DE3518512A1 (de) 1985-05-23 1985-05-23 Verfahren zur strom- und waermeerzeugung mittels einer druckbetriebenen wirbelbettfeuerung

Publications (1)

Publication Number Publication Date
WO1986007114A1 true WO1986007114A1 (fr) 1986-12-04

Family

ID=6271424

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1986/000308 WO1986007114A1 (fr) 1985-05-23 1986-05-21 Procede de production de courant et de chaleur au moyen d'une installation de chauffe a lit fluidise sous pression

Country Status (4)

Country Link
EP (1) EP0221979A1 (fr)
AU (1) AU5953686A (fr)
DE (1) DE3518512A1 (fr)
WO (1) WO1986007114A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990008887A1 (fr) * 1989-02-03 1990-08-09 Abb Stal Ab Procede pour commander une centrale electrique pfbc et centrale de ce type dotee d'equipements permettant une telle commande

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4225858C2 (de) * 1992-08-05 1995-05-18 Steinmueller Gmbh L & C Dampf-Gasturbinen-Anlage
CA2102637A1 (fr) * 1992-11-13 1994-05-14 David H. Dietz Reacteur a lit fluidise en mouvement associe a un systeme de generation cyclique de courant
JP2001107743A (ja) * 1999-10-05 2001-04-17 Mitsubishi Heavy Ind Ltd ガスタービンシステムおよびそれを備えたコンバインドプラント
DE10001110A1 (de) * 2000-01-13 2001-08-16 Alstom Power Schweiz Ag Baden Verfahren zur Rückgewinnung von Wasser aus dem Rauchgas eines Kombikraftwerkes sowie Kombikraftwerk zur Durchführung des Verfahrens

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966644C (de) * 1956-07-02 1957-08-29 Basf Ag Verfahren zum Betrieb von Heissgasturbinen
GB1326658A (en) * 1970-05-05 1973-08-15 Fuller Co Method and apparatus for treating material
GB1536849A (en) * 1975-08-18 1978-12-20 Charbonnages De France Process for producing granules by solidification of a product in the liquid phase
GB1548898A (en) * 1975-05-15 1979-07-18 Energy Equip Combustion apparatus
US4223529A (en) * 1979-08-03 1980-09-23 General Electric Company Combined cycle power plant with pressurized fluidized bed combustor
FR2491997A1 (fr) * 1980-10-09 1982-04-16 G Pi Installation a turbine a vapeur et a gaz
GB2087252A (en) * 1980-10-15 1982-05-26 Stal Laval Turbin Ab Combined gas and steam turbine plant
DE3103417A1 (de) * 1981-02-02 1982-08-12 Saarberg-Fernwärme GmbH, 6600 Saarbrücken Verfahren und vorrichtung zur oxidation von festen stoffen und waessrigen schlaemmen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966644C (de) * 1956-07-02 1957-08-29 Basf Ag Verfahren zum Betrieb von Heissgasturbinen
GB1326658A (en) * 1970-05-05 1973-08-15 Fuller Co Method and apparatus for treating material
GB1548898A (en) * 1975-05-15 1979-07-18 Energy Equip Combustion apparatus
GB1536849A (en) * 1975-08-18 1978-12-20 Charbonnages De France Process for producing granules by solidification of a product in the liquid phase
US4223529A (en) * 1979-08-03 1980-09-23 General Electric Company Combined cycle power plant with pressurized fluidized bed combustor
FR2491997A1 (fr) * 1980-10-09 1982-04-16 G Pi Installation a turbine a vapeur et a gaz
GB2087252A (en) * 1980-10-15 1982-05-26 Stal Laval Turbin Ab Combined gas and steam turbine plant
DE3103417A1 (de) * 1981-02-02 1982-08-12 Saarberg-Fernwärme GmbH, 6600 Saarbrücken Verfahren und vorrichtung zur oxidation von festen stoffen und waessrigen schlaemmen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990008887A1 (fr) * 1989-02-03 1990-08-09 Abb Stal Ab Procede pour commander une centrale electrique pfbc et centrale de ce type dotee d'equipements permettant une telle commande

Also Published As

Publication number Publication date
DE3518512A1 (de) 1986-11-27
AU5953686A (en) 1986-12-24
EP0221979A1 (fr) 1987-05-20

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