HUP9903894A2 - Method and apparatus for controlling the temperature of the bed of a bubbling bed boiler - Google Patents

Method and apparatus for controlling the temperature of the bed of a bubbling bed boiler

Info

Publication number
HUP9903894A2
HUP9903894A2 HU9903894A HUP9903894A HUP9903894A2 HU P9903894 A2 HUP9903894 A2 HU P9903894A2 HU 9903894 A HU9903894 A HU 9903894A HU P9903894 A HUP9903894 A HU P9903894A HU P9903894 A2 HUP9903894 A2 HU P9903894A2
Authority
HU
Hungary
Prior art keywords
bed
fluidized bed
controlling
temperature
fluidized
Prior art date
Application number
HU9903894A
Other languages
Hungarian (hu)
Inventor
Jukka Hirvenoja
Seppo Hulkkonen
Markku Raiko
Original Assignee
Imatran Voima Oy
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8544230&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HUP9903894(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Imatran Voima Oy filed Critical Imatran Voima Oy
Publication of HUP9903894A2 publication Critical patent/HUP9903894A2/en
Publication of HUP9903894A3 publication Critical patent/HUP9903894A3/en

Links

Classifications

    • 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 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
    • 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
    • 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
    • F23C10/20—Inlets for fluidisation air, e.g. grids; Bottoms
    • 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 
    • F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/003—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for pulverulent fuel

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)

Abstract

A találmány tárgya eljárás és berendezés az ágyhőmérsékletszabályőzására egy flűidágyas kazánban, főként szénnel vagy egyéb nagyfűtőértékű, de nehezen elgázősítható tüzelőanyagőkkal fűtöttkazánőknál. A találmány értelmében a flűidágy (6) felett, de még azűtóégető szabad térrész (8) alatt egy hűtőzónát alakítanak ki, és aflűidizáló gázt a flűidágy (6) egy részén, főként a közpőnti részén atöbbi résznél nagyőbb térfőgatárammal adagőlják be, így a megnöveltflűidizációjú tartőmányban a flűidágy (6) felfelé kiterjed ahűtőzónába, ahőnnan az elégetlen tüzelőanyag, valamint ágyanyag-részecskék vissza tűdnak hűllani a flűidágyba (6), mégpedig annak akevésbé intenzíven flűidizált tartőmányaiba. ŕThe subject of the invention is a method and device for controlling the bed temperature in a fluidized bed boiler, mainly for boilers heated with coal or other fuels with a high calorific value but difficult to gasify. According to the invention, a cooling zone is formed above the fluidized bed (6) but still below the free space part (8) of the incinerator, and a defluidizing gas is injected into a part of the fluidized bed (6), mainly in the central part, with a higher head current than the rest, so that in the region with increased fluidization the fluidized bed (6) extends upward into the cooling zone, from where the unburned fuel and bed material particles cool back into the fluidized bed (6), namely into its less intensively fluidized regions. ŕ

HU9903894A 1995-10-20 1996-10-18 Method and apparatus for controlling the temperature of the bed of a bubbling bed boiler HUP9903894A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI955011A FI100064B (en) 1995-10-20 1995-10-20 Method and arrangement for adjusting the temperature s of a fluidized bed boiler
PCT/FI1996/000553 WO1997015784A1 (en) 1995-10-20 1996-10-18 Method and apparatus for controlling the temperature of the bed of a bubbling bed boiler

Publications (2)

Publication Number Publication Date
HUP9903894A2 true HUP9903894A2 (en) 2000-03-28
HUP9903894A3 HUP9903894A3 (en) 2000-11-28

Family

ID=8544230

Family Applications (1)

Application Number Title Priority Date Filing Date
HU9903894A HUP9903894A3 (en) 1995-10-20 1996-10-18 Method and apparatus for controlling the temperature of the bed of a bubbling bed boiler

Country Status (10)

Country Link
EP (1) EP0856129A1 (en)
AU (1) AU7301796A (en)
CZ (1) CZ117198A3 (en)
EE (1) EE9800118A (en)
FI (1) FI100064B (en)
HU (1) HUP9903894A3 (en)
LV (1) LV12095B (en)
PL (1) PL326315A1 (en)
SK (1) SK48798A3 (en)
WO (1) WO1997015784A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI120515B (en) * 2008-02-08 2009-11-13 Foster Wheeler Energia Oy Circulating fluidized bed reactor for oxygen combustion and method of operating such a reactor
CN115289461B (en) * 2022-08-04 2023-07-28 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 Resistance uniformity treatment structure and treatment method for air distribution plate of circulating fluidized bed boiler
WO2024052591A1 (en) * 2022-09-08 2024-03-14 Metso Metals Oy Swirl induced combustion in circulating fluidized bed systems

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521976A (en) * 1981-11-17 1985-06-11 Foster Wheeler Energy Corporation Method of operating a fluidized bed heat exchanger utilizing induced circulation
US4539939A (en) * 1981-12-15 1985-09-10 Johnson William B Fluidized bed combustion apparatus and method
DE3503603A1 (en) * 1985-02-02 1986-08-07 Cornel. Schmidt GmbH & Co KG, 5090 Leverkusen Furnace installation
SU1343182A1 (en) * 1985-05-23 1987-10-07 Всесоюзный Теплотехнический Научно-Исследовательский Институт Им.Ф.Э.Дзержинского Method of burning solid fuel in fluidized bed combustion apparatus
HU205442B (en) * 1987-04-27 1992-04-28 Energiagazdalkodasi Intezet Method and firing equipment for fluidization firing fuels

Also Published As

Publication number Publication date
SK48798A3 (en) 1998-12-02
EE9800118A (en) 1998-10-15
FI955011A0 (en) 1995-10-20
WO1997015784A1 (en) 1997-05-01
CZ117198A3 (en) 1998-09-16
LV12095B (en) 1998-09-20
LV12095A (en) 1998-07-20
PL326315A1 (en) 1998-09-14
AU7301796A (en) 1997-05-15
HUP9903894A3 (en) 2000-11-28
FI100064B (en) 1997-09-15
EP0856129A1 (en) 1998-08-05
FI955011A (en) 1997-04-21

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