EP1080325B1 - Systeme de combustion en lit fluidise avec production de vapeur - Google Patents

Systeme de combustion en lit fluidise avec production de vapeur Download PDF

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Publication number
EP1080325B1
EP1080325B1 EP99952112A EP99952112A EP1080325B1 EP 1080325 B1 EP1080325 B1 EP 1080325B1 EP 99952112 A EP99952112 A EP 99952112A EP 99952112 A EP99952112 A EP 99952112A EP 1080325 B1 EP1080325 B1 EP 1080325B1
Authority
EP
European Patent Office
Prior art keywords
fluidised
chamber
heat
combustion
combustion chamber
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.)
Expired - Lifetime
Application number
EP99952112A
Other languages
German (de)
English (en)
Other versions
EP1080325A1 (fr
Inventor
Peter Gummel
Werner-Friedrich Staab
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.)
MG Technologies AG
Original Assignee
MG Technologies AG
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
Priority claimed from DE19822304A external-priority patent/DE19822304C1/de
Application filed by MG Technologies AG filed Critical MG Technologies AG
Publication of EP1080325A1 publication Critical patent/EP1080325A1/fr
Application granted granted Critical
Publication of EP1080325B1 publication Critical patent/EP1080325B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/005—Fluidised bed combustion apparatus comprising two or more beds
    • 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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/002—Fluidised bed combustion apparatus for pulverulent solid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/02—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed
    • F23C10/04—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone
    • F23C10/08—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases
    • F23C10/10—Fluidised bed combustion apparatus with means specially adapted for achieving or promoting a circulating movement of particles within the bed or for a recirculation of particles entrained from the bed the particles being circulated to a section, e.g. a heat-exchange section or a return duct, at least partially shielded from the combustion zone, before being reintroduced into the combustion zone characterised by the arrangement of separation apparatus, e.g. cyclones, for separating particles from the flue gases the separation apparatus being located outside the combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2206/00—Fluidised bed combustion
    • F23C2206/10—Circulating fluidised bed
    • F23C2206/103—Cooling recirculating particles

Definitions

  • the invention relates to a fluidized bed combustion system Steam generation for burning solid fuels and Generating water vapor.
  • the invention has for its object the above Fluidized bed combustion system in a compact design execute so that it is a block with a small footprint can be built. According to the invention this is achieved by the features in claim 1.
  • a further development of the invention is that everyone The fluidized bed combustion chamber is assigned at least one fluidized bed cooler which is located under and with a separator is connected by a line carrying solids, wherein each fluidized bed cooler with the associated fluidized bed combustion chamber through at least one line carrying solids and / or gas connected is.
  • the system according to the invention can be a compact block design and build. At the same time, it is without difficulty possible, one or more blocks next to each other to save space to be arranged with or without physical separation.
  • a Blocks allows the central arrangement of the Heat exchanger chamber an inexpensive construction through short Lines for the led into the vortex combustion chambers Combustion air that is in the heat exchanger chamber or in other suitable facilities is preheated.
  • Each The fluidized bed combustion chamber can be closed with the associated fluidized bed cooler be connected to a static unit, the Fluidized bed cooler in the installed or on the fluidized bed combustion chamber suspended construction can be carried out.
  • a special one space-saving design of the firing system results in that the distance between the first vortex combustion chamber and the first outer wall and the distance between the second Vortex combustion chamber and the second outer wall of the Heat exchanger chamber is 0 to 2 m.
  • the combustion system according to the invention is intended for large plants.
  • the cross-sectional area of each of the two vortex combustion chambers, measured horizontally and halfway up the interior of the chamber, will be 50 to 300 m 2 and preferably at least 70 m 2 .
  • the interior of the first and second swirl combustion chambers will be approximately rectangular in horizontal cross section.
  • two or more heat exchanger chambers and at least three swirl combustion chambers can be placed side by side in an alternating arrangement.
  • the system of Figures 1 and 2 has a central Heat exchanger chamber (1) with a rectangular cross section, see. Fig. 2.
  • the four vertical outer walls of the Heat exchanger chamber (1) with the reference numbers (1a), (1b), (1c) and (1d).
  • On the first outer wall (1a) is followed by a first swirl combustion chamber (2).
  • At the opposite wall (1c) is a second Vortex combustion chamber (3).
  • To the left vortex combustion chamber (2). are two separators (5) and (6) connected in the same way the two belong to the right vortex combustion chamber (3) Separators (7) and (8).
  • Each separator has a gas-carrying one Derivation (9) on the top of the Heat exchanger chamber (1) opens, see. Fig. 1.
  • the number of Separators can be any different from the drawing to get voted.
  • the solids separated in the separators (5) to (8) pass through a line (11) into a known Fluid bed cooler (12) or (12a). Details of the Fluidized bed coolers result, for example, from EP-B-0365723 and DE-A-4135582.
  • a bypass line (11a) can, if solids separated in the separator directly into the direct the nearest vortex combustion chamber, like the one in the Drawing for better clarity only together with the chamber (3) is shown. If you look at fluidized bed coolers (12) and (12a) are completely dispensed with, that of the separators coming solids via bypass lines of this type in the Vortex combustion chambers directed.
  • Each fluidized bed cooler is equipped with at least one line (13) for the supply of fluidizing gas, e.g. B. air, equipped, it has cooling elements (14) and a trigger (15) for cooled Solids. Part of the chilled solids are combined with gas through the channel (16) into the swirl combustion chamber (2) guided.
  • a variant is used together with the heat exchanger (12a) and the vortex combustion chamber (3) shown where the line (16) cooled solids and the line (17) heated Lead the fluidizing gas into the chamber (3).
  • Firm, grainy Fuels are passed through chambers (2) and (3)
  • Lines (18) and oxygen-containing fluidizing gas, e.g. B. air is introduced in line (19), occurs first into a distribution chamber (20) and then flows through a grate (21) upwards in the chamber (2). Further supply points for gases and solids are easily possible.
  • antracite coal is used as fuel
  • Bituminous coal lignite, wood or oil shale in question.
  • liquid ones can also be used or gaseous fuels are used, e.g. B. Refinery residues or various types of waste.
  • the Combustion temperatures in the vortex combustion chambers (2) and (3) are in the range from 700 to 950 ° C.
  • a hot gas-solid suspension leaves the Vortex combustion chamber (2) or (3) in the upper area by a Opening (23) and enters the associated separator, in which the solids are largely separated. They are called Gases leave the separator through line (9) and become cooled in the heat exchanger chamber (1).
  • the chamber (1) is with numerous heat exchange elements (24) for indirect Cooling of the hot gas equipped in the drawing only are shown schematically.
  • the elements (24) are used for one of the production of steam from boiler feed water, high pressure steam having a pressure in the range of 70 to 350 bar and medium pressure steam with a pressure of 20 to 80 bar can be generated simultaneously or alternatively.
  • One or several of the elements (24) can also be used for air preheating, which then as combustion air in one of the vortex combustion chambers (2) or (3) is performed.
  • the system is designed for large throughputs, so the individual parts of the system are large.
  • the cross-sectional area of the interior of the heat exchanger chamber (1), measured horizontally at half the height of the chamber (1), is in the range from 150 to 500 m 2 .
  • the inner horizontal cross-sectional area, measured halfway above the grate (21), is 50 to 300 m 2 .
  • the height of a chamber (2) or (3), measured above the grate (21), is in the range from 20 to 60 m.
  • the horizontal width (a) of the common walls (1a) and (1c), cf. Fig. 2, is 10 to 40 m.
  • a power plant with a electrical power of 200 MW or more connected become.
  • All hot walls can be used optimally Membrane tube walls are formed by cooling fluid be flowed through. Chilled gas that the Leaves heat exchanger chamber (1) through the outlet (25) supplied a gas cleaning, not shown.
  • FIG. 1 and 2 explains a central heat exchanger chamber (1), two Vortex combustion chambers (2) and (3) and separators (5) and (7).
  • the lines (23a) connect the vortex combustion chambers (2) and (3) with the separators (5) or (7).
  • Same reference numbers as in Figures 1 and 2 have the meaning given there.
  • the 3 are wedge-shaped downwards educated.
  • FIG. 4 schematically in horizontal section in FIG Large system shown are two heat exchanger chambers (1) and three vortex combustion chambers (2), (3) and (4) alternately placed side by side.
  • the separators are with the Provide reference numerals (5) to (8). Notwithstanding the in Fig. 4 shown
  • the chambers can also be arranged in rows and through further heat exchanger chambers and / or Vortex combustion chambers are supplemented, the overall arrangement in Horizontal section results in a cross, L or T shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (6)

  1. Système de combustion en lit fluidisé avec production de vapeur pour la combustion de combustibles solides et pour la production de vapeur d'eau, comprenant une chambre (1) formant échangeur de chaleur, dans laquelle sont disposés des éléments d'échange de chaleur dans lesquels passe du fluide de refroidissement, la chambre formant échangeur de chaleur comportant quatre parois (1a, 1b, 1c, 1d) extérieures verticales, qui entourent un espace à peu près rectangulaire en section transversale horizontale, une première chambre (2) de combustion à turbulence qui est disposée devant une première paroi (1a) extérieure de la chambre formant échangeur de chaleur, et une deuxième chambre (3a) de combustion à turbulence qui est disposée devant l'une des deuxièmes parois (1c) extérieures de la chambre formant échangeur de chaleur, qui est opposée à la première paroi, chaque chambre de combustion à turbulence comportant des conduits d'apport de combustible et d'air de combustion, et au moins un séparateur (5, 6, 7, 8) de séparation des matières (2) solides d'un courant gazeux, qui communique avec la partie supérieure de chaque chambre de combustion à turbulence, le séparateur comportant un conduit (9) d'évacuation des gaz qui communique avec la partie supérieure de la chambre formant échangeur de chaleur, caractérisé en ce qu'à chaque chambre de combustion à turbulence est associé au moins un dispositif (12, 12a) de refroidissement en lit fluidisé, qui se trouve sous un séparateur et qui communique avec celui-ci par un conduit de passage de matières solides, chaque dispositif de refroidissement en lit fluidisé communiquant avec la chambre de combustion à turbulence associée, par au moins un conduit (16, 17) de passage de la matière solide et/ou du gaz et en ce que la hauteur intérieure de la chambre (1) formant échangeur de chaleur est d'au moins 10 m et la hauteur intérieure des chambres (2, 3) de combustion à turbulence est de 10 à 60 m.
  2. Système de combustion en lit fluidisé suivant la revendication 1, caractérisé en ce que la distance entre la première chambre (2) de combustion à turbulence et la première paroi (1a) extérieure ainsi que la distance entre la deuxième chambre (3) de combustion à turbulence et la deuxième paroi (1c) extérieure de la chambre formant échangeur de chaleur, est comprise entre 0 et 2 m.
  3. Système de combustion suivant la revendication 1, caractérisé en ce que la surface de section transversale de chacune des deux chambres (2, 3) de combustion à turbulence est, mesurée horizontalement et à mi-hauteur de l'intérieur de la chambre, de 50 à 300 m2.
  4. Système de combustion suivant la revendication 1, caractérisé en ce que l'intérieur de la première et de la deuxième chambre (2, 3) de combustion à turbulence sont en section transversale horizontale à peu près rectangulaire.
  5. Système de combustion suivant la revendication 1, caractérisé en ce que la chambre (1) formant échangeur de chaleur et les chambres (2, 3) de combustion à turbulence, ont une largeur a de 10 à 40 m.
  6. Système de combustion suivant la revendication 1, caractérisé en ce qu'il est associé au moins trois chambres (2, 3, 4) de combustion à turbulence à au moins deux chambres (1) formant échangeur de chaleur.
EP99952112A 1998-05-18 1999-05-17 Systeme de combustion en lit fluidise avec production de vapeur Expired - Lifetime EP1080325B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19822304A DE19822304C1 (de) 1998-05-18 1998-05-18 Wirbelschicht-Feuerungssystem mit Dampferzeugung
DE19822304 1998-05-18
DE19834881 1998-08-01
DE19834881A DE19834881B4 (de) 1998-05-18 1998-08-01 Wirbelschicht-Feuerungssystem mit Dampferzeugung
PCT/EP1999/003376 WO1999060305A1 (fr) 1998-05-18 1999-05-17 Systeme de combustion en lit fluidise avec production de vapeur

Publications (2)

Publication Number Publication Date
EP1080325A1 EP1080325A1 (fr) 2001-03-07
EP1080325B1 true EP1080325B1 (fr) 2001-11-14

Family

ID=26046270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99952112A Expired - Lifetime EP1080325B1 (fr) 1998-05-18 1999-05-17 Systeme de combustion en lit fluidise avec production de vapeur

Country Status (23)

Country Link
US (1) US6481385B1 (fr)
EP (1) EP1080325B1 (fr)
JP (1) JP2002515580A (fr)
KR (1) KR100604347B1 (fr)
AT (1) ATE208877T1 (fr)
AU (1) AU746774B2 (fr)
BR (1) BR9910604A (fr)
CA (1) CA2332516C (fr)
CO (1) CO4870738A1 (fr)
CZ (1) CZ290860B6 (fr)
DE (2) DE19834881B4 (fr)
DK (1) DK1080325T3 (fr)
EA (1) EA002507B1 (fr)
EE (1) EE04288B1 (fr)
ES (1) ES2168022T3 (fr)
HU (1) HU225365B1 (fr)
MA (1) MA24861A1 (fr)
PL (1) PL192416B1 (fr)
RO (1) RO119163B1 (fr)
SI (1) SI20342A (fr)
TR (1) TR200003392T2 (fr)
UA (1) UA53796C2 (fr)
WO (1) WO1999060305A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1308671A1 (fr) 2001-10-30 2003-05-07 Alstom (Switzerland) Ltd Installation de combustion à lit fluidisé circulant
US6908298B1 (en) * 2001-10-30 2005-06-21 Owen W. Dykema Air-fuel injection system for stable combustion
AU2005335060A1 (en) * 2005-08-01 2007-02-08 Alstom Technology Ltd Modular fluidised bed reactor
US8028533B2 (en) * 2007-11-28 2011-10-04 E & J Enterprises, Llc Defrost indicator
FI124762B (fi) * 2009-04-09 2015-01-15 Foster Wheeler Energia Oy Kiertoleijupetikattila
KR200459676Y1 (ko) * 2009-06-09 2012-04-06 이승규 다중 연소실을 가진 난로
CN103363516B (zh) * 2013-08-01 2015-10-28 东方电气集团东方锅炉股份有限公司 一种带二次再热的循环流化床锅炉
CN104807002B (zh) * 2015-04-03 2017-03-08 东方电气集团东方锅炉股份有限公司 一种循环流化床锅炉富氧燃烧干法脱硫系统及方法
CN105157021B (zh) * 2015-09-15 2018-04-10 清华大学 一种双炉膛超临界大型循环流化床锅炉
ES2761870T3 (es) * 2016-08-25 2020-05-21 Doosan Lentjes Gmbh Aparato con lecho fluidizado circulante
CN111637472B (zh) * 2020-06-23 2024-07-16 四川新城都锅炉有限公司 一种黄磷尾气燃烧后热交换系统
CN112555863A (zh) * 2021-01-14 2021-03-26 新乡工神锅炉有限公司 一种具有消除二噁英方形旋转风分离器的垃圾焚烧炉

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Publication number Priority date Publication date Assignee Title
US4240377A (en) * 1978-01-19 1980-12-23 Johnson William B Fluidized-bed compact boiler and method of operation
CA1096707A (fr) * 1977-01-31 1981-03-03 William B. Johnson Chaudiere compacte a lit fluidise et mode de fonctionnement
DE3107356A1 (de) * 1981-02-27 1982-09-16 L. & C. Steinmüller GmbH, 5270 Gummersbach Verfahren zum betrieb eines dampferzeugers mit wirbelschichtfeuerung
US4665864A (en) * 1986-07-14 1987-05-19 Foster Wheeler Energy Corporation Steam generator and method of operating a steam generator utilizing separate fluid and combined gas flow circuits
US4815418A (en) * 1987-03-23 1989-03-28 Ube Industries, Inc. Two fluidized bed type boiler
US4896717A (en) * 1987-09-24 1990-01-30 Campbell Jr Walter R Fluidized bed reactor having an integrated recycle heat exchanger
DE3929178A1 (de) * 1989-09-02 1991-03-21 Balcke Duerr Ag Wirbelschichtreaktor und zugehoeriges betriebsverfahren
US5133943A (en) * 1990-03-28 1992-07-28 Foster Wheeler Energy Corporation Fluidized bed combustion system and method having a multicompartment external recycle heat exchanger
US5181481A (en) * 1991-03-25 1993-01-26 Foster Wheeler Energy Corporation Fluidized bed combustion system and method having multiple furnace sections
DE4135582A1 (de) * 1991-10-29 1993-05-06 Metallgesellschaft Ag, 6000 Frankfurt, De Wirbelbettkuehler fuer eine anlage zum thermischen behandeln koerniger feststoffe in der wirbelschicht
US5911201A (en) * 1996-01-13 1999-06-15 Llb Lurgi Lentjes Babcock Energietechnik Gmbh Steam boiler with pressurized circulating fluidized bed firing

Also Published As

Publication number Publication date
HUP0101897A2 (hu) 2001-11-28
BR9910604A (pt) 2001-01-16
KR20010043702A (ko) 2001-05-25
ATE208877T1 (de) 2001-11-15
HU225365B1 (en) 2006-10-28
CZ20004284A3 (cs) 2001-11-14
ES2168022T3 (es) 2002-05-16
EA200001196A1 (ru) 2001-06-25
SI20342A (sl) 2001-02-28
DE19834881A1 (de) 2000-03-09
WO1999060305A1 (fr) 1999-11-25
UA53796C2 (uk) 2003-02-17
MA24861A1 (fr) 1999-12-31
HUP0101897A3 (en) 2001-12-28
KR100604347B1 (ko) 2006-07-25
CZ290860B6 (cs) 2002-10-16
EE04288B1 (et) 2004-04-15
PL192416B1 (pl) 2006-10-31
DK1080325T3 (da) 2002-02-11
CA2332516C (fr) 2005-07-12
DE59900444D1 (de) 2001-12-20
CO4870738A1 (es) 1999-12-27
PL344241A1 (en) 2001-10-08
EE200000679A (et) 2002-04-15
AU4262999A (en) 1999-12-06
RO119163B1 (ro) 2004-04-30
TR200003392T2 (tr) 2001-02-21
AU746774B2 (en) 2002-05-02
EP1080325A1 (fr) 2001-03-07
JP2002515580A (ja) 2002-05-28
CA2332516A1 (fr) 1999-11-25
EA002507B1 (ru) 2002-06-27
US6481385B1 (en) 2002-11-19
DE19834881B4 (de) 2007-06-21

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