WO2010011457A3 - Fuel fluidizing nozzle assembly - Google Patents

Fuel fluidizing nozzle assembly Download PDF

Info

Publication number
WO2010011457A3
WO2010011457A3 PCT/US2009/048361 US2009048361W WO2010011457A3 WO 2010011457 A3 WO2010011457 A3 WO 2010011457A3 US 2009048361 W US2009048361 W US 2009048361W WO 2010011457 A3 WO2010011457 A3 WO 2010011457A3
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
air duct
air
fluidized bed
outlet end
Prior art date
Application number
PCT/US2009/048361
Other languages
French (fr)
Other versions
WO2010011457A2 (en
Inventor
Michael C. Tanca
Thomas R. Bober
Original Assignee
Alstom Technology Ltd
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 US12/435,635 external-priority patent/US8948375B2/en
Application filed by Alstom Technology Ltd filed Critical Alstom Technology Ltd
Priority to CA2731770A priority Critical patent/CA2731770C/en
Priority to DK09789917.3T priority patent/DK2308193T3/en
Priority to PL09789917T priority patent/PL2308193T3/en
Priority to ES09789917T priority patent/ES2432387T3/en
Priority to EP09789917.3A priority patent/EP2308193B1/en
Publication of WO2010011457A2 publication Critical patent/WO2010011457A2/en
Publication of WO2010011457A3 publication Critical patent/WO2010011457A3/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 
    • 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 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/10007—Spouted fluidized bed combustors

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)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

A grate assembly 10 for a fluidized bed reactor 12 includes a plurality of parallel air ducts 14 extending side-by-side in a substantially horizontal plane and defining spaces 18 therebetween through which coarse material from the fluidized bed descends. A plurality of nozzle assemblies 50 is attached to each air duct 14 for supplying fluidizing air from within the air duct 14 into the fluidized bed. Each of the nozzle assemblies 50 includes a nozzle 52 formed from a tube 30 having an inlet end 31 in fluid communication with the air duct 14, and an outlet end 72 in fluid communication with the inlet end 31. An orifice 56 is disposed at the outlet end 72 of the nozzle 52, and the nozzle 52 is bent proximate the outlet end 72 to direct a primary direction of a stream of fluidizing air flowing from the orifice 56 toward the air duct such that an angle θ between the primary direction and the substantially horizontal plane formed by the air ducts 14 is between about 30 to about 90 degrees.
PCT/US2009/048361 2008-07-25 2009-06-24 Fuel fluidizing nozzle assembly WO2010011457A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA2731770A CA2731770C (en) 2008-07-25 2009-06-24 Fuel fluidizing nozzle assembly
DK09789917.3T DK2308193T3 (en) 2008-07-25 2009-06-24 Fuel fluidizing nozzle device
PL09789917T PL2308193T3 (en) 2008-07-25 2009-06-24 Fuel fluidizing nozzle assembly
ES09789917T ES2432387T3 (en) 2008-07-25 2009-06-24 Fuel fluidizing nozzle assembly
EP09789917.3A EP2308193B1 (en) 2008-07-25 2009-06-24 Fuel fluidizing nozzle assembly

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US8374308P 2008-07-25 2008-07-25
US61/083,743 2008-07-25
US12/435,635 2009-05-05
US12/435,635 US8948375B2 (en) 2009-05-05 2009-05-05 Systems for embedding information in data strings

Publications (2)

Publication Number Publication Date
WO2010011457A2 WO2010011457A2 (en) 2010-01-28
WO2010011457A3 true WO2010011457A3 (en) 2010-03-18

Family

ID=41351605

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/048361 WO2010011457A2 (en) 2008-07-25 2009-06-24 Fuel fluidizing nozzle assembly

Country Status (6)

Country Link
EP (1) EP2308193B1 (en)
CA (1) CA2731770C (en)
DK (1) DK2308193T3 (en)
ES (1) ES2432387T3 (en)
PL (1) PL2308193T3 (en)
WO (1) WO2010011457A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9333476B2 (en) * 2014-07-16 2016-05-10 Amec Foster Wheeler North America Corp. Grid nozzle assembly, a fluidized bed reactor with a grid nozzle assembly and methods of using a grid nozzle assembly

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028458A2 (en) * 1979-10-03 1981-05-13 Sandfire (Proprietary) Limited Fluidised-bed boilers
GB2075360A (en) * 1980-04-09 1981-11-18 Foster Wheeler Energy Corp Water-cooled fluidised bed distributor plate
US4865540A (en) * 1989-02-01 1989-09-12 Foster Wheeler Energy Corporation Air flow measurement device for fluidized bed reactor
US5105559A (en) * 1990-03-01 1992-04-21 Foster Wheeler Energy Corporation Flow-seal fluidization nozzle and a fluidized bed system utilizing same
US6571746B1 (en) * 1999-01-21 2003-06-03 Kvaerner Pulping Oy Method in connection with a pipe grate for fluidized bed boiler and a pipe grate

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425331A (en) 1994-06-13 1995-06-20 Foster Wheeler Energy Corporation Circulating fluidized bed reactor for low grade fuels
FI102563B1 (en) 1996-04-15 1998-12-31 Kvaerner Pulping Oy Grate structure in a fluidized boiler

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0028458A2 (en) * 1979-10-03 1981-05-13 Sandfire (Proprietary) Limited Fluidised-bed boilers
GB2075360A (en) * 1980-04-09 1981-11-18 Foster Wheeler Energy Corp Water-cooled fluidised bed distributor plate
US4865540A (en) * 1989-02-01 1989-09-12 Foster Wheeler Energy Corporation Air flow measurement device for fluidized bed reactor
US5105559A (en) * 1990-03-01 1992-04-21 Foster Wheeler Energy Corporation Flow-seal fluidization nozzle and a fluidized bed system utilizing same
US6571746B1 (en) * 1999-01-21 2003-06-03 Kvaerner Pulping Oy Method in connection with a pipe grate for fluidized bed boiler and a pipe grate

Also Published As

Publication number Publication date
CA2731770C (en) 2014-04-22
EP2308193A2 (en) 2011-04-13
CA2731770A1 (en) 2010-01-28
WO2010011457A2 (en) 2010-01-28
DK2308193T3 (en) 2013-11-04
ES2432387T3 (en) 2013-12-03
PL2308193T3 (en) 2013-12-31
EP2308193B1 (en) 2013-07-31

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