EP0384500B1 - Wirbelbrennkammer - Google Patents

Wirbelbrennkammer Download PDF

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Publication number
EP0384500B1
EP0384500B1 EP90200139A EP90200139A EP0384500B1 EP 0384500 B1 EP0384500 B1 EP 0384500B1 EP 90200139 A EP90200139 A EP 90200139A EP 90200139 A EP90200139 A EP 90200139A EP 0384500 B1 EP0384500 B1 EP 0384500B1
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
lining
cornice
wall
ledge
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
EP90200139A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0384500A1 (de
Inventor
Gert Bornemann
Hans-Jürgen Heibel
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.)
GEA Group AG
Original Assignee
Metallgesellschaft 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
Application filed by Metallgesellschaft AG filed Critical Metallgesellschaft AG
Priority to AT90200139T priority Critical patent/ATE77874T1/de
Publication of EP0384500A1 publication Critical patent/EP0384500A1/de
Application granted granted Critical
Publication of EP0384500B1 publication Critical patent/EP0384500B1/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
    • F22B31/0015—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
    • F22B31/003—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 surrounding the bed or with water tube wall partitions
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls

Definitions

  • the invention relates to a combustion chamber for burning fine-grained fuels in the fluidized bed at temperatures of 700 to 1100 ° C, with a refractory lining arranged on the inside of the combustion chamber in the lower region of the chamber.
  • a combustion chamber of this type is described in DE-OS 36 23 177.
  • the lining of the inside of the combustion chamber covers the lower third of the inner wall of the combustion chamber in the form of a lining.
  • the gases rising in the combustion chamber are partially cooled by the water cooling of the combustion chamber wall, which reduces the speed of the gas molecules in this area.
  • a downward flow of the gases therefore arises directly on the inside of the combustion chamber wall, in particular above the lining.
  • This downward flow has an abrasive effect, which leads to considerable wear and tear on the steel wall of the combustion chamber, particularly directly above the upper end of the lining, since there are strong turbulences.
  • the invention has for its object to protect the inner wall of the combustion chamber in the area particularly at risk of wear immediately above the upper end of the lining in a simple manner.
  • This is achieved according to the invention in that the lining has a widened ledge at the upper end. During combustion, a stationary bed of solids forms on this ledge, which effectively protects the most endangered area of the combustion chamber wall.
  • the widened ledge which closes the lining at the top must be wider than the wall thickness of the lining and expediently the width of the ledge is at least 1.5 times the wall thickness of the lining immediately below the lining.
  • the width of the ledge is in the range of 10 to 60 cm and preferably 15 to 50 cm.
  • the refractory lining is, in a known manner, a protective layer e.g. made of concrete or a lining.
  • the height of the lining is usually 0.2 to 0.6 times the height of the combustion chamber.
  • the upper area of the combustion chamber has no lining so that good heat transfer for better steam generation can be achieved there.
  • combustion chambers that belong to an incinerator that works according to the principle of the circulating fluidized bed. Details of the circulating fluidized bed are described in DE-PS 25 39 546. In this case, relatively high gas velocities of approximately 4 to 7 m / s occur in the lower region of the combustion chamber and the velocities in the downward direction occurring on the inner wall of the combustion chamber are similarly high. The abrasive wear on the combustion chamber wall is therefore considerable.
  • Combustion chambers of this type are mostly designed in a known manner as a tube wall, consisting of closely adjoining, vertical water-carrying tubes.
  • the combustion chamber of FIG. 1 has a cylindrical tube wall (1) which is connected to a lower annular distributor line (2) and an upper annular manifold (3). Cooling water is supplied in line (4), which partially evaporates in the vertical tubes of the wall (1). A water vapor-water mixture collects in the upper ring line (3) and is drawn off in line (5).
  • the cross-section of the combustion chamber can not only be round, but also square or rectangular.
  • Fine-grained fuels e.g. Coal, abandoned through line (7). These fuels are burned with air from line (8), the air first being passed through a distributor grate (9). Additional air supply nozzles directed into the combustion chamber have been omitted for simplicity.
  • the grate (9) is not absolutely necessary.
  • the fine-grained fuels burn at temperatures in the range from 700 to 1100 ° C. Combustion gases containing solids leave the combustion chamber through the channel (10).
  • the lower area of the inside of the tube wall (1) is protected against wear and overheating by a fire-resistant lining (12).
  • the heat dissipation through the tube wall (1) results in a vertical swirling of the gases in the vicinity of the inside of the tube wall, with considerable downward speeds occurring.
  • the lining In order to protect the material, usually steel, on the inside of the pipe wall in the most endangered area immediately above the lining (12) against wear, the lining has a widened ledge (14) at the upper end, which is shown enlarged in FIG. 2 is.
  • a stationary bed (15) of solids forms on the ledge, cf. Fig. 2.
  • the ledge (14) is wide enough so that the bed (15) despite the swirling gases the ledge (14) is permanently preserved.
  • the width (B) of the ledge is at least 1.5 times and preferably 2 to 4 times the thickness (x) of the lining (12).
  • the bed (15) prevents the inside of the tube wall (1) immediately above the lining (12) from being exposed to wear by swirling solids.
  • the ledge (14a) has an upwardly projecting bead (17), which forms an additional support for the solid bed (15) that forms.
  • Fig. 3 it is also shown how the ledge and the lining are anchored to the pipe wall by horizontal brackets (18) and (19). For the sake of clarity, this bracketing has been omitted in FIGS.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Paper (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Incineration Of Waste (AREA)
  • Combustion Of Fluid Fuel (AREA)
EP90200139A 1989-02-23 1990-01-19 Wirbelbrennkammer Expired - Lifetime EP0384500B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90200139T ATE77874T1 (de) 1989-02-23 1990-01-19 Wirbelbrennkammer.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3905553 1989-02-23
DE3905553A DE3905553A1 (de) 1989-02-23 1989-02-23 Wirbelbrennkammer

Publications (2)

Publication Number Publication Date
EP0384500A1 EP0384500A1 (de) 1990-08-29
EP0384500B1 true EP0384500B1 (de) 1992-07-01

Family

ID=6374731

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90200139A Expired - Lifetime EP0384500B1 (de) 1989-02-23 1990-01-19 Wirbelbrennkammer

Country Status (13)

Country Link
US (1) US5016576A (enrdf_load_stackoverflow)
EP (1) EP0384500B1 (enrdf_load_stackoverflow)
JP (1) JP2799513B2 (enrdf_load_stackoverflow)
AT (1) ATE77874T1 (enrdf_load_stackoverflow)
AU (1) AU5008090A (enrdf_load_stackoverflow)
CA (1) CA2007041A1 (enrdf_load_stackoverflow)
DD (1) DD298840A5 (enrdf_load_stackoverflow)
DE (2) DE3905553A1 (enrdf_load_stackoverflow)
ES (1) ES2033559T3 (enrdf_load_stackoverflow)
FI (1) FI94285C (enrdf_load_stackoverflow)
IN (1) IN171308B (enrdf_load_stackoverflow)
PT (1) PT93247A (enrdf_load_stackoverflow)
ZA (1) ZA901403B (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5072696A (en) * 1990-12-11 1991-12-17 Foster Wheeler Energy Corporation Furnace temperature control method for a fluidized bed combustion system
JP3156920B2 (ja) * 1996-05-15 2001-04-16 日本エー・エス・エム株式会社 半導体処理装置
ATE234672T1 (de) * 1999-04-14 2003-04-15 Sasol Tech Pty Ltd Erosionshemmung von behältern
US7056063B2 (en) * 2000-12-04 2006-06-06 Battelle Energy Alliance, Llc Apparatus for indication of at least one subsurface barrier characteristic
US7718924B2 (en) * 2006-06-12 2010-05-18 Joseph Claffy Multiple-compartment insulated food tray
JP5187615B2 (ja) * 2006-06-28 2013-04-24 三男 金子 バーナー
PL1953452T3 (pl) * 2007-01-10 2013-08-30 General Electric Technology Gmbh Komora reaktora z cyrkulującym złożem fluidalnym
JP2010038491A (ja) * 2008-08-07 2010-02-18 Mitsubishi Heavy Ind Ltd 循環流動層燃焼炉
JP5606209B2 (ja) * 2010-08-05 2014-10-15 三菱重工業株式会社 循環流動層ボイラの火炉構造
CN101900328B (zh) * 2010-08-17 2012-06-06 济南市锅炉压力容器检验研究所 一种水冷壁的导向装置
MY170133A (en) * 2012-10-16 2019-07-05 Sumitomo Heavy Industries Fluidized bed combustor
JP6612045B2 (ja) * 2015-03-26 2019-11-27 住友重機械工業株式会社 流動床反応炉

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1172937A (en) * 1967-08-31 1969-12-03 Matsushita Electronics Corp Electric Refrigerator or like Apparatus
JPS5568368A (en) * 1978-11-20 1980-05-23 Eekoo Denki Kogyo Kk Vibrating body for beat massage instrument
JPS56916A (en) * 1979-06-15 1981-01-08 Hokkaido Togyo Kk Method and apparatus for generating hot blast for incineration of chaff
DE3003245A1 (de) * 1980-01-30 1981-11-12 Deutsche Babcock Ag, 4200 Oberhausen Verfahren und vorrichtung zum verbrennen von stoffen mit schwer ausbrennenden bestandteilen
DE3117195A1 (de) * 1981-04-30 1982-11-11 Bergwerksverband Gmbh, 4300 Essen Verfahren und vorrichtung zur verminderung des waerme- und stoffaustausches in unmittelbarer wandnaehe von wirbelschichtreaktoren
US4444017A (en) * 1982-03-29 1984-04-24 Carrier Corporation Method and apparatus for controlling the operation of a compressor crankcase heater
US4514989A (en) * 1984-05-14 1985-05-07 Carrier Corporation Method and control system for protecting an electric motor driven compressor in a refrigeration system
US4597362A (en) * 1984-09-05 1986-07-01 The Garrett Corporation Fluidized bed combustor
US4595416A (en) * 1984-10-01 1986-06-17 Fuller Company Method and apparatus for producing cement clinker including white cement
CA1274422A (en) * 1985-08-07 1990-09-25 Juan A. Garcia-Mallol Fluidized bed reactor and method of operating same
SE452360B (sv) * 1986-02-05 1987-11-23 Goetaverken Energy Syst Ab Anordning vid en reaktorkammare for en cirkulerande, fluidiserad bedd
JPS62255712A (ja) * 1986-04-30 1987-11-07 Kawasaki Heavy Ind Ltd 流動層燃焼方法
DE3623177A1 (de) * 1986-06-23 1988-01-07 Ruhrkohle Waerme Gmbh Brennkammer fuer atmosphaerische stationaere wirbelschichtfeuerung
US4651653A (en) * 1986-07-07 1987-03-24 Combustion Engineering, Inc. Sorbent injection system

Also Published As

Publication number Publication date
US5016576A (en) 1991-05-21
JP2799513B2 (ja) 1998-09-17
JPH02238203A (ja) 1990-09-20
CA2007041A1 (en) 1990-08-23
FI94285B (fi) 1995-04-28
DE3905553A1 (de) 1990-08-30
DE59000179D1 (de) 1992-08-06
EP0384500A1 (de) 1990-08-29
FI94285C (fi) 1995-08-10
ATE77874T1 (de) 1992-07-15
PT93247A (pt) 1991-10-15
FI900057L (fi) 1990-08-24
DD298840A5 (de) 1992-03-12
AU5008090A (en) 1990-08-30
IN171308B (enrdf_load_stackoverflow) 1992-09-12
ES2033559T3 (es) 1993-03-16
FI900057A0 (fi) 1990-01-05
ZA901403B (en) 1991-10-30

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