Invention Patent
- Patent Title: High-temperature air combustion burner unit
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Application No.: JP2012555833Application Date: 2012-01-27
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Publication No.: JP5549747B2Publication Date: 2014-07-16
- Inventor: 雅人 田村 , 貴弘 小崎
- Applicant: 株式会社Ihi
- Assignee: 株式会社Ihi
- Current Assignee: 株式会社Ihi
- Priority: JP2011017518 2011-01-31
- Main IPC: F23D1/00
- IPC: F23D1/00 ; F23C9/08 ; F23D1/02 ; F23L13/02 ; F23L15/00
Abstract:
The burner device for high-temperature air combustion according to the present invention is equipped with a thermal insulation portion (5) that is provided facing a furnace (1) and has a throat (6); a burner nozzle (9) that is provided at the axial center of this throat and that injects a pulverized coal mixed flow (38) into the furnace through the throat; a windbox (8) that is provided so as to house this burner nozzle; an air register (16) that is provided at the distal end of the burner nozzle and that injects low-temperature secondary air from the windbox to the throat; a high-temperature air nozzle (23), one end of which opens into the furnace through the heat insulation portion; and a combustion air switching means (16, 24) that switches between injecting low-temperature secondary air to the throat through the air register and injecting high-temperature secondary air to the furnace interior through the high-temperature air nozzle, in which in steady combustion, low-temperature secondary air is injected to the throat through the air register by the combustion air switching means and a pulverized coal mixed flow is injected from the burner nozzle, and in high-temperature air combustion, high-temperature secondary air is injected to the furnace interior through the high-temperature air nozzle by the combustion air switching means and a pulverized coal mixed flow is injected from the burner nozzle.
Public/Granted literature
- JPWO2012105434A1 高温空気燃焼用バーナ装置 Public/Granted day:2014-07-03
Information query
IPC分类:
F | 机械工程、照明、加热 |
F23 | 燃烧设备;燃烧方法 |
F23D | 燃烧器 |
F23D1/00 | 燃烧粉末燃料的燃烧器 |