Title:
COMBUSTION BURNER AND BOILER PROVIDED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2018/142772
Kind Code:
A1
Abstract:
Provided is a combustion burner (100A) provided with a fuel nozzle (110), a secondary air nozzle (120), a secondary air flow channel (121) formed between the secondary air nozzle (120) and the fuel nozzle (110), a secondary air introduction flow channel (130) that introduces at least some of secondary air flowing through the secondary air flow channel (121) into a fuel gas flow channel (111), and a flame stabilizer (140) disposed within the fuel nozzle (110), the relationship 2 ≤ L/W ≤ 5 being satisfied, where L is a gas-flow-direction distance along an axis (X1) from an introduction position (P1) where the at least some of the secondary air is introduced from the secondary air introduction flow channel (130) into the fuel gas flow channel (111) to an installation position (P4) where the flame stabilizer (140) is installed, and W is the minimum width of the fuel gas flow channel (111) extending from the introduction position (P1) to the installation position (P4).
Inventors:
TOMINAGA YUKIHIRO (JP)
MATSUMOTO KEIGO (JP)
DOMOTO KAZUHIRO (JP)
TANAKA RYUICHIRO (JP)
ABE NAOFUMI (JP)
KASAI JUN (JP)
MATSUMOTO KEIGO (JP)
DOMOTO KAZUHIRO (JP)
TANAKA RYUICHIRO (JP)
ABE NAOFUMI (JP)
KASAI JUN (JP)
Application Number:
PCT/JP2017/044446
Publication Date:
August 09, 2018
Filing Date:
December 11, 2017
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F23D1/00; F23C99/00; F23L1/00
Domestic Patent References:
| WO2015037589A1 | 2015-03-19 |
Foreign References:
| JP2003279006A | 2003-10-02 | |||
| JP2015180848A | 2015-10-15 | |||
| JP2013194994A | 2013-09-30 | |||
| JP2000257855A | 2000-09-22 | |||
| JP2014001908A | 2014-01-09 | |||
| JPS6057104A | 1985-04-02 | |||
| JPH03230003A | 1991-10-14 | |||
| JP2005273973A | 2005-10-06 | |||
| JP2016194379A | 2016-11-17 |
Attorney, Agent or Firm:
FUJITA, Takaharu (JP)
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