Title:
COMBUSTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/114370
Kind Code:
A1
Abstract:
Provided is a boiler having multiple burners (19) arranged on a furnace wall (10) of a furnace (18), each burner (19) comprising: a cylindrical fuel nozzle (3) for injecting a mixture of fuel and carrier gas therefor into the furnace (18); one or more cylindrical air nozzles (8, 11) provided on the outer circumference of the nozzle (3) for injecting combustion air into the furnace; and a wind box (12) for supplying combustion air to the nozzles (8, 11) in common. The wind box (12) is provided with openings (12a, 12b) through which combustion air flows in from a direction perpendicular to the axial direction of the burner (19), and is partitioned by a partition wall (14) to form multiple parallel flow paths for the air flowing in through the openings in a translational manner. Some of the multiple flow paths are connected to an upper part of the combustion air nozzle (8), and the remaining flow paths are connected to a lower part of the nozzle (8). Each of the multiple combustion air flow paths is independently provided with an air momentum deviation damper (15) and an air flow rate adjustment damper (17), such that the direction of the flame of the burner (19) can be changed between upward and downward directions inside the furnace (18) depending on a combustion condition such as a load.
More Like This:
| WO/2007/087032 | DUAL FUEL GAS-LIQUID BURNER |
Inventors:
OCHI YUSUKE (JP)
KURAMASHI KOUJI (JP)
KIYAMA KENJI (JP)
OKAZAKI HIROFUMI (JP)
KURAMASHI KOUJI (JP)
KIYAMA KENJI (JP)
OKAZAKI HIROFUMI (JP)
Application Number:
PCT/JP2011/000976
Publication Date:
August 30, 2012
Filing Date:
February 22, 2011
Export Citation:
Assignee:
BABCOCK HITACHI KK (JP)
OCHI YUSUKE (JP)
KURAMASHI KOUJI (JP)
KIYAMA KENJI (JP)
OKAZAKI HIROFUMI (JP)
OCHI YUSUKE (JP)
KURAMASHI KOUJI (JP)
KIYAMA KENJI (JP)
OKAZAKI HIROFUMI (JP)
International Classes:
F23C6/04; F23L9/00; F23D1/00
Foreign References:
| JP2002147713A | 2002-05-22 | |||
| JP2010249362A | 2010-11-04 | |||
| JPH09101015A | 1997-04-15 | |||
| JPH09196310A | 1997-07-29 | |||
| JP2010139180A | 2010-06-24 | |||
| JPS543924A | 1979-01-12 | |||
| JP2008121924A | 2008-05-29 | |||
| JP2002147713A | 2002-05-22 |
Other References:
See also references of EP 2679899A4
Attorney, Agent or Firm:
MATSUNAGA, Takayoshi et al. (JP)
Takayoshi Matsunaga (JP)
Takayoshi Matsunaga (JP)
Download PDF:
Claims:
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