Title:
BOILER COMBUSTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/010034
Kind Code:
A1
Abstract:
The purpose of the invention is to provide a boiler combustion device intended for a high-efficiency power plant, wherein the heat load on the upper wall surfaces of a furnace can be effectively reduced even during startup, and heat transfer tube panels in the furnace upper wall surfaces can be constructed from the same material as existing boilers. The boiler combustion device is characterized in comprising cooling gas supply ports (7) for supplying gas having higher emissivity than nitrogen and oxygen, the cooling gas supply ports being provided in the furnace wall surfaces on the downstream side of a burner (1) and being either of level height with a steam separator (8) or on the upstream side of the steam separator (8).
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Inventors:
SHIBATA TSUYOSHI (JP)
HAYASHI YOSHIHARU (JP)
HANDA MASATO (JP)
HAYASHI YOSHIHARU (JP)
HANDA MASATO (JP)
Application Number:
PCT/JP2012/067639
Publication Date:
January 16, 2014
Filing Date:
July 11, 2012
Export Citation:
Assignee:
HITACHI LTD (JP)
SHIBATA TSUYOSHI (JP)
HAYASHI YOSHIHARU (JP)
HANDA MASATO (JP)
SHIBATA TSUYOSHI (JP)
HAYASHI YOSHIHARU (JP)
HANDA MASATO (JP)
International Classes:
F23C9/08; F23M5/08
Foreign References:
| JPS6383505A | 1988-04-14 | |||
| JP2002031317A | 2002-01-31 | |||
| JPH10169966A | 1998-06-26 | |||
| JP2011089711A | 2011-05-06 |
Attorney, Agent or Firm:
INOUE Manabu et al. (JP)
Manabu Inoue (JP)
Manabu Inoue (JP)
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