EP0787946B1 - Externe Wirbelschicht zur Ausrüstung einer zirkulierenden Wirbelschichtfeuerung - Google Patents

Externe Wirbelschicht zur Ausrüstung einer zirkulierenden Wirbelschichtfeuerung Download PDF

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Publication number
EP0787946B1
EP0787946B1 EP97400213A EP97400213A EP0787946B1 EP 0787946 B1 EP0787946 B1 EP 0787946B1 EP 97400213 A EP97400213 A EP 97400213A EP 97400213 A EP97400213 A EP 97400213A EP 0787946 B1 EP0787946 B1 EP 0787946B1
Authority
EP
European Patent Office
Prior art keywords
chamber
fluidized bed
bed according
wall
tube
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
EP97400213A
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English (en)
French (fr)
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EP0787946A1 (de
Inventor
Jean Aubry
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.)
Alstom Power Boiler SA
Original Assignee
Alstom Energy Systems SA
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Filing date
Publication date
Application filed by Alstom Energy Systems SA filed Critical Alstom Energy Systems SA
Publication of EP0787946A1 publication Critical patent/EP0787946A1/de
Application granted granted Critical
Publication of EP0787946B1 publication Critical patent/EP0787946B1/de
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 or dispositions of combustion apparatus
    • F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements or 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 or 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
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D13/00—Heat-exchange apparatus using a fluidised bed

Definitions

  • the present invention relates to a fluidized bed external intended to equip a circulating fluidized bed hearth.
  • a dense fluidized bed comprising in a box a chamber in which is pour solids and equipped with a lower box fluidization air supply, injection nozzles fluidizing air disposed on its lower wall and a heat exchanger made up of a plurality parallel arrangements of tubes conveying a fluid coolant hanging from the upper wall of the chamber, each arrangement of tubes being connected to a heat transfer fluid inlet manifold consisting of a tube placed longitudinally in the box and in the upper part, inside the chamber to an outlet manifold of this heated fluid constituted a tube arranged longitudinally in the box and equipped with at least one outlet pipe for the heated heat transfer fluid passing through a wall of the chamber.
  • Such a fluidized bed is known from document US-A-3983927.
  • the heat exchanger tubes are arranged vertically with bent returns at the top and bottom, and the inlet and outlet manifolds outlet are located parallel in the upper part inside the chamber.
  • the present invention provides an arrangement for operating in natural circulation and offering great ease of assembly and disassembly during repair operations.
  • the present invention consists into a bed of compact shape and the manufacture and repairs are particularly easy and quick.
  • said parallel tube arrangements are arranged transversely in the bedroom, the inlet manifold being housed, at the bottom, in the bottom wall of the chamber.
  • the outlet manifold is arranged under the upper wall of the chamber and said tubing passes through this wall superior.
  • the two collectors are arranged in the longitudinal central plane of the chamber.
  • all the tubes of each arrangement of tube are of substantially identical length.
  • the inlet manifold is housed in a slot made in the lower wall of the chamber and coated with sand.
  • a supply line for heat transfer fluid passes through the fluidization box and is connected to the input manifold.
  • the invention also relates to an installation for combustion comprising a circulating fluidized bed hearth comprising a gas outlet opening into a cyclone of separation whose recovered solids are treated in a external fluidized bed as specified above.
  • Figure 1 is a perspective view of a bed according to the invention, its wall being partially torn off.
  • Figure 2 is a cross-sectional view of this bed.
  • Bedroom 2 is equipped with a lower box fluidizing air supply 3, nozzles 4 of fluidization air injection arranged on the wall lower 2A of the chamber 2 and of a heat exchanger 5 consisting of a plurality of parallel arrangements of tubes conveying a heat transfer fluid, for example steam, arranged transversely to chamber 2 and suspended from the upper wall 2B of chamber 2, each arrangement of tubes being connected at the bottom to an inlet manifold heat transfer fluid 6 consisting of a tube arranged longitudinally to the casing 1 and in the upper part to a outlet manifold of this heated fluid 7 consisting of a tube placed longitudinally in the box 1.
  • a heat transfer fluid for example steam
  • Such a bed is generally intended for an installation combustion system comprising a circulating fluidized bed hearth comprising a gas outlet opening into a cyclone of separation whose recovered solids are treated in this external fluidized bed before being at least partially reinjected into the circulating fluidized bed hearth.
  • the inlet manifold 6 is housed in the wall lower 2A of chamber 2 and arranged in the plane central of bedroom 2. More specifically, it is housed in a slot 9 made in the bottom wall 2A of the chamber 2 and coated with sand or concrete 16, which ensures its fixation and its protection.
  • a supply line in heat transfer fluid 10 passes through the fluidization box 3 and is connected to the inlet manifold 6 by a connector You.
  • the arrangements of heat exchange tubes which are so classic essentially horizontal and hairpin hair and extend to the height of the walls 13, 14.
  • the fixtures are hung in pairs on the wall upper 2B of chamber 2 by two supporting tubes vertical 17, 18 which are connected to the inlet manifold 6, pass through the upper wall 2B and return via return sections 17A, 18A connect to the manifold outlet 7 to which the tubes of the connection arrangements are connected tubes.
  • these support tubes 17, 18 can be of the type described in patent document FR-2 622 963 and be joined to the horizontal sections by connecting parts providing both support mechanical and hydraulic connection, support tubes constituting an extension of one of the pin tubes to hair.
  • the horizontal hairpin tubes are all the same length which eliminates any tension _differential in the support tubes 17, 18.
  • the concrete collector outlet 7 is arranged inside bedroom 2, in the central plane longitudinal of chamber 2 and more precisely under the upper wall 2B of chamber 2 and is equipped with at least an outlet pipe for the heated heat transfer fluid 8 passing through this upper wall 2B and connected to the outlet manifold 7 by a tee fitting ensuring also the suspension of the outlet manifold 7 on the wall upper 2B.
  • Such a bed allows a particularly manufacturing improved, which reduces manufacturing and assembly on site.
  • the box 1 without its upper wall can be made in a first set, like an open box.
  • the upper wall with collectors 7, 6 and the suspended tube arrangements 5 can be prefabricated in a second set, in the workshop or on site. It is enough during the final assembly, introduce the second from above set in the first set, the input manifold 6 being installed in the slot 9, placed on the metal sheet 20 then coated with sand or concrete.
  • the complete disassembly of the device is carried out by destruction of any concrete 16 and removal from above of the second set.
  • the sanding of the inlet manifold 6 facilitates disassembly of the latter and any intervention on this one.
  • a partial disassembly is carried out by cutting off the pair damaged tube arrangements and the support tubes 17, 18 correspondents just above and just below the pair of tube arrangements and translating this pair of arrangements in the box up or down in order to carry out the repair on the tube arrangements cleared.
  • disassembly requires less space than in known beds and it is thus possible to make a bed with less height and size.

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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Claims (7)

  1. Dichtes Wirbelbett, das in einem Reaktorbehälter (1) eine Kammer (2) umfaßt, in der die Feststoffe eintreten und das mit einem unteren Versorgungsbehälter mit Wirbelluft (3) versehen ist, mit Injektionsdüsen für Wirbelluft (4), die an der unteren Wand (2A) angeordnet sind, und einem Wärmetauscher (5), der aus einer Mehrzahl von parallelen Röhrenanordnungen gebildet ist, die ein Wärmeträgerfluid führen, welche an der oberen Wand (2B) der Kammer (2) aufgehängt sind, wobei jede Röhrenanordnung mit einem Eingangskollektor für das Wärmeträgerfluid (6) verbunden ist, der aus einer Röhre gebildet wird, die längs am Reaktorbehälter (1) angeordnet ist, und im oberen Teil an der Innenseite der Kammer (2) mit einem Ausgangskollektor (7) für das erwärmte Fluid, gebildet aus einer Röhre, die längs am Reaktorbehälter (1) angeordnet ist, und mit zumindest einem Ausgangsstutzen (8) für das erwärmte Wärmeträgerfluid ausgestattet ist, der eine Wand der Kammer (2) durchdringt, dadurch gekennzeichnet, daß die parallelen Röhrenanordnungen transversal in der Kammer (2) angeordnet sind, wobei der Eingangskollektor (6) im unteren Teil in der unteren Wand (2A) der Kammer vorgesehen ist.
  2. Bett nach Anspruch 1, dadurch gekennzeichnet, daß der Ausgangskollektor (7) unter der oberen Wand (2B) der Kammer (2) angeordnet ist und daß der Stutzen (8) die obere Wand (2B) durchdringt.
  3. Bett nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die zwei Kollektoren (6, 7) in der zentralen Längsebene der Kammer (2) angeordnet sind.
  4. Bett nach Anspruch 3, dadurch gekennzeichnet, daß sämtliche Röhren einer jeden Röhrenanordnung im wesentlichen eine identische Länge haben.
  5. Bett nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Eingangskollektor (6) in einem Fenster (9) angeordnet ist, das in der unteren Wand (2A) der Kammer (2) ausgebildet ist, und mit Sand ummantelt ist.
  6. Bett nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß eine Kanalisierung zur Versorgung mit Wärmeträgerfluid (10) den Verwirbelungsbehälter (3) durchquert und mit dem Eingangskollektor (6) verbunden ist.
  7. Verbrennungsinstallation mit einer zirkulierenden Wirbelschichtbefeuerung, umfassend einen Ausgang für das Gas, der in einem Separationszyklon mündet, in dem die rückgewonnenen Feststoffe in einem externen Wirbelbett entsprechend einem der vorhergehenden Ansprüche bearbeitet werden.
EP97400213A 1996-01-31 1997-01-30 Externe Wirbelschicht zur Ausrüstung einer zirkulierenden Wirbelschichtfeuerung Expired - Lifetime EP0787946B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9601130A FR2744037B1 (fr) 1996-01-31 1996-01-31 Lit fluidise externe destine a equiper un foyer a lit fluidise circulant
FR9601130 1996-01-31

Publications (2)

Publication Number Publication Date
EP0787946A1 EP0787946A1 (de) 1997-08-06
EP0787946B1 true EP0787946B1 (de) 2000-06-28

Family

ID=9488661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400213A Expired - Lifetime EP0787946B1 (de) 1996-01-31 1997-01-30 Externe Wirbelschicht zur Ausrüstung einer zirkulierenden Wirbelschichtfeuerung

Country Status (10)

Country Link
EP (1) EP0787946B1 (de)
CN (1) CN1078093C (de)
DE (1) DE69702352T2 (de)
DK (1) DK0787946T3 (de)
ES (1) ES2148910T3 (de)
FR (1) FR2744037B1 (de)
GR (1) GR3034383T3 (de)
PT (1) PT787946E (de)
RU (1) RU2161283C2 (de)
ZA (1) ZA97779B (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8961743B2 (en) 2007-11-20 2015-02-24 Ensyn Renewables, Inc. Rapid thermal conversion of biomass
US9044727B2 (en) 2011-09-22 2015-06-02 Ensyn Renewables, Inc. Apparatuses and methods for controlling heat for rapid thermal processing of carbonaceous material
US9102889B2 (en) 2011-12-12 2015-08-11 Ensyn Renewables, Inc. Fluidized catalytic cracker riser quench system
US9127208B2 (en) 2006-04-03 2015-09-08 Pharmatherm Chemicals, Inc. Thermal extraction method and product
US9347005B2 (en) 2011-09-13 2016-05-24 Ensyn Renewables, Inc. Methods and apparatuses for rapid thermal processing of carbonaceous material
US9422478B2 (en) 2010-07-15 2016-08-23 Ensyn Renewables, Inc. Char-handling processes in a pyrolysis system
US9441887B2 (en) 2011-02-22 2016-09-13 Ensyn Renewables, Inc. Heat removal and recovery in biomass pyrolysis
US10041667B2 (en) 2011-09-22 2018-08-07 Ensyn Renewables, Inc. Apparatuses for controlling heat for rapid thermal processing of carbonaceous material and methods for the same

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2767380B1 (fr) * 1997-08-18 1999-09-24 Gec Alsthom Stein Ind Dispositif d'echange thermique pour une chaudiere a lit fluidise circulant
US20110284359A1 (en) 2010-05-20 2011-11-24 Uop Llc Processes for controlling afterburn in a reheater and for controlling loss of entrained solid particles in combustion product flue gas
US10400175B2 (en) 2011-09-22 2019-09-03 Ensyn Renewables, Inc. Apparatuses and methods for controlling heat for rapid thermal processing of carbonaceous material
CN102425965B (zh) * 2011-12-01 2013-08-14 兰州节能环保工程有限责任公司 粉粒状固体物料板式换热器
US9670413B2 (en) 2012-06-28 2017-06-06 Ensyn Renewables, Inc. Methods and apparatuses for thermally converting biomass
AR097135A1 (es) 2013-06-26 2016-02-24 Ensyn Renewables Inc Sistemas y métodos para combustible renovable
DK3337966T3 (da) 2015-08-21 2022-02-28 Ensyn Renewables Inc Opvarmningssystem med flydende biomasse
CA3048681A1 (en) 2016-12-29 2018-07-05 Ensyn Renewables, Inc. Demetallization of liquid biomass

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR934373A (fr) * 1945-03-29 1948-05-20 Standard Oil Dev Co Appareil de réaction
US3983927A (en) * 1975-06-25 1976-10-05 Dorr-Oliver Incorporated Heat exchanger for fluidized bed reactor
US4607690A (en) * 1985-11-29 1986-08-26 Foster Wheeler Energy Corporation Tube and support system for a heat exchanger
SE467984B (sv) * 1990-05-08 1992-10-12 Abb Carbon Ab Pfbc-anlaeggning innefattande en braennkammare utformad som ett maanghoernigt prisma med sex sidovaeggar
FI97315C (fi) * 1990-09-26 1996-11-25 Stein Industrie Leijukerroskattilan tulipesäseinämän jäähdytyslaitteisto
US5095854A (en) * 1991-03-14 1992-03-17 Foster Wheeler Development Corporation Fluidized bed reactor and method for operating same utilizing an improved particle removal system
US5239946A (en) * 1992-06-08 1993-08-31 Foster Wheeler Energy Corporation Fluidized bed reactor system and method having a heat exchanger

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9127208B2 (en) 2006-04-03 2015-09-08 Pharmatherm Chemicals, Inc. Thermal extraction method and product
US8961743B2 (en) 2007-11-20 2015-02-24 Ensyn Renewables, Inc. Rapid thermal conversion of biomass
US9422478B2 (en) 2010-07-15 2016-08-23 Ensyn Renewables, Inc. Char-handling processes in a pyrolysis system
US9441887B2 (en) 2011-02-22 2016-09-13 Ensyn Renewables, Inc. Heat removal and recovery in biomass pyrolysis
US9347005B2 (en) 2011-09-13 2016-05-24 Ensyn Renewables, Inc. Methods and apparatuses for rapid thermal processing of carbonaceous material
US9044727B2 (en) 2011-09-22 2015-06-02 Ensyn Renewables, Inc. Apparatuses and methods for controlling heat for rapid thermal processing of carbonaceous material
US10041667B2 (en) 2011-09-22 2018-08-07 Ensyn Renewables, Inc. Apparatuses for controlling heat for rapid thermal processing of carbonaceous material and methods for the same
US9102890B2 (en) 2011-12-12 2015-08-11 Ensyn Renewables, Inc. Fluidized catalytic cracking apparatus
US9120988B2 (en) 2011-12-12 2015-09-01 Ensyn Renewables, Inc. Methods to increase gasoline yield
US9127224B2 (en) 2011-12-12 2015-09-08 Ensyn Renewables, Inc. External steam reduction method in a fluidized catalytic cracker
US9120989B2 (en) 2011-12-12 2015-09-01 Ensyn Renewables, Inc. Generating cellulosic-renewable identification numbers in a refinery
US9127223B2 (en) 2011-12-12 2015-09-08 Ensyn Renewables, Inc. Systems and methods for renewable fuel
US9120990B2 (en) 2011-12-12 2015-09-01 Ensyn Renewables, Inc. Systems for fuels from biomass
US9410091B2 (en) 2011-12-12 2016-08-09 Ensyn Renewables, Inc. Preparing a fuel from liquid biomass
US9109177B2 (en) 2011-12-12 2015-08-18 Ensyn Renewables, Inc. Systems and methods for renewable fuel
US9422485B2 (en) 2011-12-12 2016-08-23 Ensyn Renewables, Inc. Method of trading cellulosic-renewable identification numbers
US9102888B2 (en) 2011-12-12 2015-08-11 Ensyn Renewables, Inc. Methods for renewable fuels with reduced waste streams
US9102889B2 (en) 2011-12-12 2015-08-11 Ensyn Renewables, Inc. Fluidized catalytic cracker riser quench system

Also Published As

Publication number Publication date
RU2161283C2 (ru) 2000-12-27
DK0787946T3 (da) 2000-10-16
CN1078093C (zh) 2002-01-23
GR3034383T3 (en) 2000-12-29
PT787946E (pt) 2000-12-29
EP0787946A1 (de) 1997-08-06
ZA97779B (en) 1997-08-13
CN1167651A (zh) 1997-12-17
ES2148910T3 (es) 2000-10-16
DE69702352D1 (de) 2000-08-03
DE69702352T2 (de) 2001-02-15
FR2744037A1 (fr) 1997-08-01
FR2744037B1 (fr) 1998-02-27

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