EP0037858A1 - Centrale à vapeur avec générateur de vapeur à combustion sous pression et à lit fluidisé - Google Patents

Centrale à vapeur avec générateur de vapeur à combustion sous pression et à lit fluidisé Download PDF

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Publication number
EP0037858A1
EP0037858A1 EP80200338A EP80200338A EP0037858A1 EP 0037858 A1 EP0037858 A1 EP 0037858A1 EP 80200338 A EP80200338 A EP 80200338A EP 80200338 A EP80200338 A EP 80200338A EP 0037858 A1 EP0037858 A1 EP 0037858A1
Authority
EP
European Patent Office
Prior art keywords
flue gas
steam
fluidized bed
steam generator
line
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP80200338A
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German (de)
English (en)
Other versions
EP0037858B1 (fr
Inventor
Tadeusz Dipl.-Ing. Zaba
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Priority to EP80200338A priority Critical patent/EP0037858B1/fr
Priority to DE8080200338T priority patent/DE3066241D1/de
Priority to US06/245,075 priority patent/US4380147A/en
Publication of EP0037858A1 publication Critical patent/EP0037858A1/fr
Application granted granted Critical
Publication of EP0037858B1 publication Critical patent/EP0037858B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
    • F22B31/0084—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed with recirculation of separated solids or with cooling of the bed particles outside the combustion bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
    • F22B31/0015—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed for boilers of the water tube type

Definitions

  • the present invention relates to a steam power plant with a pressure-fired steam generator with a fluidized bed fire according to the preamble of claim 1.
  • a major disadvantage of such steam generators is that, due to the high temperature, the tubes lying in the fluidized bed are exposed to the corrosive attack of the combustion gases and therefore have to be replaced in a relatively short time.
  • the combustion air is supplied to a steam generator 1 from a charging group 2 under pressure, for example 8-10 bar, via a main air line 3 in various ways.
  • the charging group 2 consists of a gas turbine 4 driven by the flue gases of the steam generator with an open circuit, a compressor 5 rigidly coupled to the gas turbine and a starting motor 6 which is used to start up and which is uncoupled after the stationary operating state of the system has been reached.
  • An air supply line 7 branches off from line 3, through which air is conveyed under a perforated inflow floor 8, which forms the moving bed grate.
  • the air flowing through acts as a carrier stream for the fuel particles, which are kept in suspension and form the fluidized bed.
  • Another part of the combustion air is branched off from the line 7 through a cooling air line 9 and directed at 10 into a cooling air space delimited by the outer shell 11 and inner shell 12 of the steam generator, from which it is provided in the inner shell 12 below the inflow base 8 Slots 13 exits under the inflow floor.
  • the ash discharge device 14, the coal feed device 15 and the additive feed device 16, with which an additive, such as limestone or dolomite, for admixing the sulfur compounds in a known manner, are symbolically indicated on the left side of the steam generator 1.
  • the fluidized bed is designated 17.
  • the flue gases flow in sequence in the boiler train through a pre-evaporator tube bundle 18, a superheater tube bundle 19 and an evaporator tube bundle 20.
  • the steam collector 21 is arranged outside the flue gas stream in the flow direction of the boiler water after the evaporator tube bundle 20.
  • the steam excreted in the steam collector 21 enters the superheater tube bundle 19 and further through a steam line 22 into a steam turbine 24 of a steam turbine generator group 23, the generator 25 of which supplies the mains current.
  • the exhaust steam from the turbine 24 passes into a condenser 26, from which a feed water pump 27 conveys the condensate into the pre-evaporator heating bundle 18.
  • a bypass flue gas duct is provided, which is separated from the flue gas duct by partitions 28, 29 and 30, which form three short ducts.
  • a bypass flow control flap 31, 32 and 33 in each of these channels enables the flue gas flow through the individual sections of the flue gas flue with the three steam heating surfaces 18, 19 and 20 individually or combined in fine stages to control or regulate and, in cooperation with other regulators described below, to fine-tune the steam output and the temperature of the flue gases after the boiler to the respective requirements.
  • the flue gases pass from the steam generator 1 through a flue gas discharge line 34 into a cyclone dust separator 35, in which a large part of the unburned dust-like components is separated out. These are discharged with part of the flue gases via a dust return line 36 into an injector 37, which blows them into the fluidized bed through a dust introduction line 38.
  • a part of the remaining, partially dedusted flue gas passes into a secondary flow control circuit, consisting of a flue gas bypass line 39, 40, a flue gas bypass flap 41, a flue gas cooler 42 and a fan 43:
  • a flue gas bypass line 39, 40 When the flap 41 is open, the flue gas from the fan 43 is partly mentioned in the injector 37 Dust injection is conveyed via line 38 into the fluidized bed and partly into a flue gas / air mixer 44.
  • flue gas is mixed with combustion air branched off from line 3 in such a ratio and introduced through line 45 under the fluidized bed that the fluidized bed temperature is kept at an optimal value in connection with the other control options.
  • the main coolant for the flue gas cooler 42 is water, which, because of the relatively high flue gas temperature, which can still be 500 ° C., for example, is used to generate steam, for example working or heating steam or else to overheat the turbine steam can be.
  • a secondary bypass line 46 branches off from the flue gas bypass line 39, 140 in front of the flue gas bypass flap 41, in which a secondary bypass control flap 47 is provided and which opens in front of the fan 43 into the bypass line 40, via which the majority of the flue gas bypass branched off for temperature control in the fluidized bed normally flows.
  • the steam output can be varied or varied within a wide range . be managed.
  • the means with which the objectives of the invention are achieved thus consist of the three control flaps 31, 32, 33 in the steam generator, the flue gas bypass lines 39, 40, 46 and the flaps 41, 47 provided in these lines, as well as the cooler 42 and the fan 43.
  • the coolant flow through the cooler and the delivery capacity of the fan, the fluidized bed can be kept at an allowable temperature by avoiding the disadvantages that are associated with cooling pipes laid in the fluidized bed by the heat dissipation in the cooler 42 and the heat transferred to the heating surfaces in the steam boiler Optimally adapt the heat to the required steam output.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
EP80200338A 1980-04-16 1980-04-16 Centrale à vapeur avec générateur de vapeur à combustion sous pression et à lit fluidisé Expired EP0037858B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP80200338A EP0037858B1 (fr) 1980-04-16 1980-04-16 Centrale à vapeur avec générateur de vapeur à combustion sous pression et à lit fluidisé
DE8080200338T DE3066241D1 (en) 1980-04-16 1980-04-16 Steam power station with pressure-fired fluidised bed steam generator
US06/245,075 US4380147A (en) 1980-04-16 1981-03-18 Steam power plant containing pressure-fired steam generator with fluidized bed firing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80200338A EP0037858B1 (fr) 1980-04-16 1980-04-16 Centrale à vapeur avec générateur de vapeur à combustion sous pression et à lit fluidisé

Publications (2)

Publication Number Publication Date
EP0037858A1 true EP0037858A1 (fr) 1981-10-21
EP0037858B1 EP0037858B1 (fr) 1984-01-25

Family

ID=8186987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80200338A Expired EP0037858B1 (fr) 1980-04-16 1980-04-16 Centrale à vapeur avec générateur de vapeur à combustion sous pression et à lit fluidisé

Country Status (3)

Country Link
US (1) US4380147A (fr)
EP (1) EP0037858B1 (fr)
DE (1) DE3066241D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002755A1 (fr) * 1985-10-23 1987-05-07 A. Ahlstrom Corporation Appareil pressurise a lit fluidise
WO1988005494A1 (fr) * 1987-01-22 1988-07-28 Saarbergwerke Aktiengesellschaft Combustion de charbon avec un foyer a lit fluidise
EP0444927A2 (fr) * 1990-03-01 1991-09-04 Foster Wheeler Energy Corporation Température améliorée de la vapeur dans un lit fluidisé
EP0475029A2 (fr) * 1990-09-13 1992-03-18 Deutsche Babcock Energie- und Umwelttechnik Aktiengesellschaft Foyer à lit fluidisé avec un lit stationnaire
RU2490543C2 (ru) * 2011-10-25 2013-08-20 Федеральное государственное бюджетное учреждение науки Институт катализа им. Г.К. Борескова Сибирского отделения Российской академии наук Каталитический реактор - парогенератор
RU2527238C1 (ru) * 2013-05-24 2014-08-27 Общество с ограниченной ответственностью "Уникат" Способ обезвреживания органических отходов и нефти

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU563279B2 (en) * 1982-06-22 1987-07-02 Lawrence Waldemar Ihnativ Processing waste materials
US4936098A (en) * 1987-05-13 1990-06-26 Gibbs & Hill, Inc. Utilization of circulating fluidized bed combustors for compressed air energy storage application
SE464715B (sv) * 1987-12-02 1991-06-03 Asea Stal Ab Saett att reglera en pfbc-anlaeggning vid driftstoerning i gasturbinaggregat och en pfbc-anlaeggning med utrustning foer saadan reglering
SE459988B (sv) * 1987-12-23 1989-08-28 Abb Stal Ab Saett att vid driftstoerning kyla baeddmaterial i en pfbc-kraftanlaeggning samt pfbc-kraftanlaeggning med en kylkrets ansluten till baeddkaerlet
US5279356A (en) * 1988-12-21 1994-01-18 American Hydrotherm Corporation Waste heat recovery system
FI85417C (fi) * 1989-12-28 1992-04-10 Ahlstroem Oy Foerfarande och anordning foer reglering av temperaturen i en reaktor med fluidiserad baedd.
SE9101901D0 (sv) * 1991-06-20 1991-06-20 Abb Carbon Ab Saett vid pfbc-anlaeggning
JP3209775B2 (ja) * 1992-01-10 2001-09-17 株式会社日立製作所 複合発電設備およびその運転方法
US5666801A (en) * 1995-09-01 1997-09-16 Rohrer; John W. Combined cycle power plant with integrated CFB devolatilizer and CFB boiler
US5953898A (en) * 1997-02-26 1999-09-21 Foster Wheeler Energia Oy Power generation method including control of temperature of flue gases entering a high temperature ceramic filter
US8858223B1 (en) * 2009-09-22 2014-10-14 Proe Power Systems, Llc Glycerin fueled afterburning engine
JP2013092053A (ja) * 2011-10-24 2013-05-16 Mitsubishi Heavy Ind Ltd 液化ガス処理システム、この制御方法、これを備えた液化ガス運搬船およびこれを備えた液化ガス貯蔵設備
ES2775004T3 (es) * 2012-03-19 2020-07-23 Stamicarbon B V Acting Under The Name Of Mt Innovation Center Una planta de energía solar térmica y un método para operar una planta de energía solar térmica
JP5711794B2 (ja) * 2013-09-03 2015-05-07 月島機械株式会社 加圧流動焼却炉設備、及び加圧流動焼却炉設備の制御方法
GB201509651D0 (en) * 2015-06-03 2015-07-15 Castle Europ Ltd Turbine system and method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB772991A (en) * 1955-09-07 1957-04-17 La Mont Int Ass Ltd Improvements in and relating to forced recirculation steam generators
FR2238898A1 (fr) * 1973-07-25 1975-02-21 Foster Wheeler Corp
US3903846A (en) * 1971-05-04 1975-09-09 Douglas Ernest Elliott Fuel-burning heater
DE2424394A1 (de) * 1974-05-20 1975-12-04 Foster Wheeler Corp Dampferzeuger
GB1513795A (en) * 1976-04-14 1978-06-07 Coal Ind Boilers
DE2804073A1 (de) * 1977-01-31 1978-08-10 William Benedict Johnson Wirbelschicht-verbrennungs- und waermeuebertragungsvorrichtung sowie verfahren zum betreiben einer solchen vorrichtung
GB2030689A (en) * 1978-08-04 1980-04-10 Energy Equip Method and means for controlling the operation of fluidised bed combustion apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1135935A (en) * 1965-12-08 1968-12-11 Humphreys & Glasgow Ltd Process and apparatus for the recovery of waste heat
SE406366B (sv) * 1977-06-23 1979-02-05 Stal Laval Turbin Ab Virvelbeddsbrennkammare
US4287023A (en) * 1979-08-23 1981-09-01 Phillips Petroleum Co. Waste heat recovery

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB772991A (en) * 1955-09-07 1957-04-17 La Mont Int Ass Ltd Improvements in and relating to forced recirculation steam generators
US3903846A (en) * 1971-05-04 1975-09-09 Douglas Ernest Elliott Fuel-burning heater
FR2238898A1 (fr) * 1973-07-25 1975-02-21 Foster Wheeler Corp
DE2424394A1 (de) * 1974-05-20 1975-12-04 Foster Wheeler Corp Dampferzeuger
GB1513795A (en) * 1976-04-14 1978-06-07 Coal Ind Boilers
DE2804073A1 (de) * 1977-01-31 1978-08-10 William Benedict Johnson Wirbelschicht-verbrennungs- und waermeuebertragungsvorrichtung sowie verfahren zum betreiben einer solchen vorrichtung
GB2030689A (en) * 1978-08-04 1980-04-10 Energy Equip Method and means for controlling the operation of fluidised bed combustion apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BRENNSTOFF-WARME-KRAFT, vol. 30, Nr. 11, November 1978 VDI Verlag, Düsseldorf, DE H.D. SCHILLING "Die Wirbelschicht-feuerung-Einsatzmöglichkeiten für die Strom- und Wärmeerzeugung aus Kohle", Seiten 425-427. *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002755A1 (fr) * 1985-10-23 1987-05-07 A. Ahlstrom Corporation Appareil pressurise a lit fluidise
WO1988005494A1 (fr) * 1987-01-22 1988-07-28 Saarbergwerke Aktiengesellschaft Combustion de charbon avec un foyer a lit fluidise
EP0444927A2 (fr) * 1990-03-01 1991-09-04 Foster Wheeler Energy Corporation Température améliorée de la vapeur dans un lit fluidisé
EP0444927A3 (en) * 1990-03-01 1992-05-06 Foster Wheeler Energy Corporation Fluidized bed steam temperature enhancement system
EP0475029A2 (fr) * 1990-09-13 1992-03-18 Deutsche Babcock Energie- und Umwelttechnik Aktiengesellschaft Foyer à lit fluidisé avec un lit stationnaire
EP0475029A3 (en) * 1990-09-13 1992-09-16 Deutsche Babcock Energie- Und Umwelttechnik Aktiengesellschaft Fluidized bed furnace with a stationary bed
RU2490543C2 (ru) * 2011-10-25 2013-08-20 Федеральное государственное бюджетное учреждение науки Институт катализа им. Г.К. Борескова Сибирского отделения Российской академии наук Каталитический реактор - парогенератор
RU2527238C1 (ru) * 2013-05-24 2014-08-27 Общество с ограниченной ответственностью "Уникат" Способ обезвреживания органических отходов и нефти
WO2014189404A1 (fr) * 2013-05-24 2014-11-27 Общество с ограниченной ответственностью "Уникат" Procédé de neutralisation de déchets organiques et de pétrole

Also Published As

Publication number Publication date
EP0037858B1 (fr) 1984-01-25
US4380147A (en) 1983-04-19
DE3066241D1 (en) 1984-03-01

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