Invention Grant
- Patent Title: Tubular flame burner and method for controlling combustion
- Patent Title (中): 管式火焰燃烧器及燃烧控制方法
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Application No.: US10514668Application Date: 2003-08-07
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Publication No.: US07654819B2Publication Date: 2010-02-02
- Inventor: Kuniaki Okada , Munehiro Ishioka , Hitoshi Oishi , Tatsuya Shimada , Koichi Takashi , Yutaka Suzukawa , Yoshiki Fujii , Takamitsu Kusada
- Applicant: Kuniaki Okada , Munehiro Ishioka , Hitoshi Oishi , Tatsuya Shimada , Koichi Takashi , Yutaka Suzukawa , Yoshiki Fujii , Takamitsu Kusada
- Applicant Address: JP Tokyo
- Assignee: JFE Steel Corporation
- Current Assignee: JFE Steel Corporation
- Current Assignee Address: JP Tokyo
- Agency: Frishauf, Holtz, Goodman & Chick, P.C.
- Priority: JP2002-233072 20020809; JP2002-233109 20020809; JP2002-236951 20020815; JP2002-236952 20020815; JP2002-236953 20020815; JP2002-236954 20020815
- International Application: PCT/JP03/10059 WO 20030807
- International Announcement: WO2004/025179 WO 20040325
- Main IPC: F23D17/00
- IPC: F23D17/00 ; F23D14/02 ; F23C3/00

Abstract:
A tubular flame burner, a combustion method, and combustion controller, are disclosed. Here, the tubular flame burner comprises: a tubular combustion chamber whose h one end is open; fuel-spraying nozzles and oxygen-containing-gas spraying nozzles. The respective nozzle orifices are formed in the inner face of the combustion chamber so that each spraying direction is in a neighborhood of a tangential direction of the inner circumferential wall of the combustion chamber. And an ignition device is disposed at a position r/2 from the tube axis of the combustion chamber (r: the radius of the combustion chamber). The length of the combustion chamber can be adjusted, the tubular flame burner is a multi-stage burner formed of multiple tubular flame burners, and a gap between the inner tube and the outer tube serves as a gas-flow path. A combustion control method for the tubular flame burner is disclosed, wherein on/off of switching valves is controlled so that the spraying speed from each nozzle is maintained in a predetermined range corresponding to the combustion load.
Public/Granted literature
- US20050106517A1 Tubular flame burner and method for controlling combustion Public/Granted day:2005-05-19
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