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SE9401032D0 - Method and apparatus for adjusting the tube surface in a fluidized bed - Google Patents

Method and apparatus for adjusting the tube surface in a fluidized bed

Info

Publication number
SE9401032D0
SE9401032D0 SE9401032A SE9401032A SE9401032D0 SE 9401032 D0 SE9401032 D0 SE 9401032D0 SE 9401032 A SE9401032 A SE 9401032A SE 9401032 A SE9401032 A SE 9401032A SE 9401032 D0 SE9401032 D0 SE 9401032D0
Authority
SE
Sweden
Prior art keywords
barrier
bed
area
fluidized
zone
Prior art date
Application number
SE9401032A
Other languages
Swedish (sv)
Other versions
SE9401032L (en
Original Assignee
Abb Carbon Ab
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 Abb Carbon Ab filed Critical Abb Carbon Ab
Priority to SE9401032A priority Critical patent/SE9401032L/en
Publication of SE9401032D0 publication Critical patent/SE9401032D0/en
Priority to EP95914650A priority patent/EP0795108B1/en
Priority to ES95914650T priority patent/ES2141345T3/en
Priority to PCT/SE1995/000322 priority patent/WO1995026483A1/en
Priority to DE69513039T priority patent/DE69513039T2/en
Publication of SE9401032L publication Critical patent/SE9401032L/en
Priority to FI970559A priority patent/FI970559A0/en

Links

Classifications

    • 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
    • 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
    • F22B31/0015—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 for boilers of the water tube type
    • F22B31/0023—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 for boilers of the water tube type with tubes in the 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
    • F23C10/18—Details; Accessories
    • F23C10/28—Control devices specially adapted for fluidised bed, combustion apparatus

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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention is characterized in that the heat-transfer area of a steam generator (10) is designed somewhat oversized in a fluidized bed (6) in a PFBC power plant. By thereafter creating one or a plurality of non-fluidized zones (18) in the bed (6) during operation, the active heat-transfer area of tubes in the steam generator (10) may be adjusted. A certain proportion of the installed tube area is made passive as regards heat transfer. Defluidization is accomplished by shutting off fluidizing air (4) to the bed (6) below a vertical channel where a non-fluidized zone (18) is to be created. A barrier (15) in the form of a shelf or a stop plate is installed near the lowermost level (14) of the tube bundle (10), thus preventing fluidizing air (4) from reaching the bed (6) above the barrier (15). This results in the creation of an almost vertically standing non-fluidized zone (18) above the barrier (15). The cross-section area of the zone (18) in the horizontal direction is determined by the horizontal area of the barrier (15).
SE9401032A 1994-03-28 1994-03-28 Method and apparatus for adjusting the tube surface in a fluidized bed SE9401032L (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE9401032A SE9401032L (en) 1994-03-28 1994-03-28 Method and apparatus for adjusting the tube surface in a fluidized bed
EP95914650A EP0795108B1 (en) 1994-03-28 1995-03-27 Method and device for readjusting the heat transfer surface of a fluidized bed
ES95914650T ES2141345T3 (en) 1994-03-28 1995-03-27 PROCEDURE AND DEVICE FOR RESETTING THE THERMAL TRANSFER SURFACE OF A FLUIDIZED BED.
PCT/SE1995/000322 WO1995026483A1 (en) 1994-03-28 1995-03-27 Method and device for readjusting the heat transfer surface of a fluidized bed
DE69513039T DE69513039T2 (en) 1994-03-28 1995-03-27 METHOD AND DEVICE FOR CHANGING THE HEAT TRANSFER SURFACE OF A FLUID BED
FI970559A FI970559A0 (en) 1994-03-28 1997-02-10 Method and apparatus for adjusting the heat transfer area in a fluidized bed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9401032A SE9401032L (en) 1994-03-28 1994-03-28 Method and apparatus for adjusting the tube surface in a fluidized bed

Publications (2)

Publication Number Publication Date
SE9401032D0 true SE9401032D0 (en) 1994-03-28
SE9401032L SE9401032L (en) 1995-09-29

Family

ID=20393443

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9401032A SE9401032L (en) 1994-03-28 1994-03-28 Method and apparatus for adjusting the tube surface in a fluidized bed

Country Status (6)

Country Link
EP (1) EP0795108B1 (en)
DE (1) DE69513039T2 (en)
ES (1) ES2141345T3 (en)
FI (1) FI970559A0 (en)
SE (1) SE9401032L (en)
WO (1) WO1995026483A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI118977B (en) 1999-01-21 2008-05-30 Metso Power Oy Procedure in conjunction with the floating bed boiler and beam grate
DE102016225338A1 (en) * 2016-12-16 2018-06-21 Deutsches Zentrum für Luft- und Raumfahrt e.V. Heat exchanger for heat transfer between a particulate heat transfer medium and a second medium

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2842102A (en) * 1954-11-18 1958-07-08 Combustion Eng Steam generation
US3387590A (en) * 1967-03-16 1968-06-11 Interior Usa System for regulating the total heat output in a burning fluidized bed heat exchanger or boiler
US3542523A (en) * 1967-09-08 1970-11-24 Dorr Oliver Inc Reactor design
GB1525222A (en) * 1973-05-05 1978-09-20 Pearce A Fluidised beds
US4177765A (en) * 1978-08-14 1979-12-11 The Babcock & Wilcox Co. Output control for fluidized bed boilers
DE3030215A1 (en) * 1980-08-09 1982-03-18 Bergwerksverband Gmbh, 4300 Essen Fluid bed firing
US4396056A (en) * 1980-11-19 1983-08-02 Hodges James L Apparatus and method for controlling heat transfer between a fluidized bed and tubes immersed therein
US4436507A (en) * 1981-07-16 1984-03-13 Foster Wheeler Energy Corporation Fluidized bed reactor utilizing zonal fluidization and anti-mounding air distributors
US4453494A (en) * 1982-03-22 1984-06-12 Combustion Engineering, Inc. Fluidized bed boiler having a segmented grate
SE457661B (en) * 1986-06-12 1989-01-16 Lars Axel Chambert SEAT AND REACTOR FOR FLUIDIZED BOTTOM

Also Published As

Publication number Publication date
EP0795108B1 (en) 1999-10-27
DE69513039T2 (en) 2000-06-29
FI970559A7 (en) 1997-02-10
SE9401032L (en) 1995-09-29
EP0795108A1 (en) 1997-09-17
WO1995026483A1 (en) 1995-10-05
ES2141345T3 (en) 2000-03-16
FI970559A0 (en) 1997-02-10
DE69513039D1 (en) 1999-12-02

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