Title:
ボイラ
Document Type and Number:
Japanese Patent JP7139095
Kind Code:
B2
Abstract:
Provided is a combustion burner comprising: a fuel nozzle (110) forming a fuel gas flow passage (111) for supplying a fuel gas to a furnace; secondary air nozzles (120) forming secondary air flow passages (121) for supplying secondary air to the furnace from the outside of the fuel nozzle (110); and a pair of secondary air supply ports arranged above and below the secondary air nozzles (120) and supplying secondary air to the furnace (11). The fuel gas flow passage (111) and the secondary air flow passages (121) are flow passages having a rectangular shape in a cross-section taken perpendicular to an axis. The sum of the flow passage widths of the openings, open to the furnace, of secondary air flow passages (121) located to the left and right of the fuel gas flow passage (111) is greater than the sum of the flow passage widths of the openings, open to the furnace, of secondary air flow passages (121) located above and below the fuel gas flow passage (111).
Inventors:
Yukihiro Tominaga
Keigo Matsumoto
Kazuhiro Domoto
Ryuichiro Tanaka
Tomonori Saeki
Naofumi Abe
Jun Kasai
Junji Imada
Keigo Matsumoto
Kazuhiro Domoto
Ryuichiro Tanaka
Tomonori Saeki
Naofumi Abe
Jun Kasai
Junji Imada
Application Number:
JP2017028084A
Publication Date:
September 20, 2022
Filing Date:
February 17, 2017
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F23D1/00; F23C5/08
Domestic Patent References:
| JP201514451A | ||||
| JP2013234843A |
Foreign References:
| WO2016158079A1 |
Attorney, Agent or Firm:
Fujiharu
Takaori Mitoma
Miki Kawakami
Daisuke Nagata
Takaori Mitoma
Miki Kawakami
Daisuke Nagata