Title:
FUEL BLAST SUPPLY NOZZLE AND FLUIDIZED BED COMBUSTION FURNACE
Document Type and Number:
Japanese Patent JP2003161582
Kind Code:
A
Abstract:
To provide a fluidized bed (layer) combustion furnace that has a long-life fuel blast supply nozzle body that reduces a thermal stress and impedes damage by reducing a metal temperature difference via a simple structure.
A structure for depositing a bed material 20 to form an insulating layer abolishes a bed material deposition space chamber 36 of a prior-art supply nozzle body 3, and forms a lower surface of the supply nozzle body 3 as an insulating structure and has a weir 4 for reducing a heat input difference between regions of fuel nozzle holes 2 and surrounding regions in a peripheral portion of the side of the supply nozzle body 3, to thereby grade a temperature change in the peripheral portion.
Inventors:
MATSUMOTO AKIMITSU
KAWANO TAKASHI
TOMINAGA YOSHITAKA
KAWANO TAKASHI
TOMINAGA YOSHITAKA
Application Number:
JP2001362763A
Publication Date:
June 06, 2003
Filing Date:
November 28, 2001
Export Citation:
Assignee:
BABCOCK HITACHI KK
International Classes:
F23C10/18; F23K3/02; F27B15/10; F27B15/14; F27D7/02; (IPC1-7): F27D7/02; F23C10/18; F23K3/02; F27B15/10; F27B15/14
Attorney, Agent or Firm:
Takayoshi Matsunaga