Title:
COMBUSTION BURNER AND BOILER
Document Type and Number:
WIPO Patent Application WO/2016/158473
Kind Code:
A1
Abstract:
In this combustion burner and boiler, interference of ignition in a flame stabilizer is suppressed and flame stabilization performance is improved by providing: a fuel nozzle (61) which ejects a fuel gas that is a mixture of pulverized coal and air; a combustion air nozzle (62) which ejects a fuel gas combustion air from outside of the fuel nozzle (61); a secondary air nozzle (63) which ejects secondary air from the outside of the combustion air nozzle (62); and a flame stabilizer (64) which comprises a first flame stabilizer main body (71) which is arranged at the leading end of the fuel nozzle (61) and separated by a prescribed space from the inner wall surface (61a) of the fuel nozzle (61) and which forms a ring shape having as the center (O) an axial line along the ejection direction of the fuel gas.
Inventors:
MATSUMOTO KEIGO (JP)
YUASA ATSUSHI (JP)
TOMINAGA YUKIHIRO (JP)
TAKAYAMA AKIMASA (JP)
DOMOTO KAZUHIRO (JP)
TSUKAHARA KEITA (JP)
YUASA ATSUSHI (JP)
TOMINAGA YUKIHIRO (JP)
TAKAYAMA AKIMASA (JP)
DOMOTO KAZUHIRO (JP)
TSUKAHARA KEITA (JP)
Application Number:
PCT/JP2016/058609
Publication Date:
October 06, 2016
Filing Date:
March 17, 2016
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F23C99/00; F23D1/00
Domestic Patent References:
WO2011077762A1 | 2011-06-30 |
Foreign References:
JP2014173777A | 2014-09-22 | |||
JPH10318504A | 1998-12-04 | |||
JPH09203505A | 1997-08-05 | |||
JPH11148610A | 1999-06-02 | |||
JPH10220707A | 1998-08-21 | |||
JP2001082706A | 2001-03-30 | |||
JPH11281010A | 1999-10-15 | |||
JP2009204256A | 2009-09-10 | |||
JPH08219415A | 1996-08-30 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
Patent business corporation Sakai international patent firm (JP)
Patent business corporation Sakai international patent firm (JP)
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