发明授权
US06976440B2 Fuel distribution device for fuel feed ducts and method of operating distribution device
失效
用于燃料供给管道的燃料分配装置和操作分配装置的方法
- 专利标题: Fuel distribution device for fuel feed ducts and method of operating distribution device
- 专利标题(中): 用于燃料供给管道的燃料分配装置和操作分配装置的方法
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申请号: US10468956申请日: 2001-12-03
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公开(公告)号: US06976440B2公开(公告)日: 2005-12-20
- 发明人: Yoshinori Ohtani , Hidehisa Yoshizako , Hiroaki Kanemoto , Yutaka Takeno , Yoshio Shimogori , Toshikazu Tsumura , Yoshitaka Takahashi
- 申请人: Yoshinori Ohtani , Hidehisa Yoshizako , Hiroaki Kanemoto , Yutaka Takeno , Yoshio Shimogori , Toshikazu Tsumura , Yoshitaka Takahashi
- 申请人地址: JP Hiroshima
- 专利权人: Babcock-Hitachi Kabushiki Kaisha
- 当前专利权人: Babcock-Hitachi Kabushiki Kaisha
- 当前专利权人地址: JP Hiroshima
- 代理机构: Intellectual Property Law Group LLP
- 代理商 Otto O. Lee; Juneko Jackson
- 国际申请: PCT/JP01/10542 WO 20011203
- 国际公布: WO03/048643 WO 20030612
- 主分类号: F23C5/28
- IPC分类号: F23C5/28 ; F23C7/00 ; F23K3/02 ; F23L13/00 ; F23D1/00
摘要:
A fuel supply duct, which supplies a mixed fluid of a solid fuel and carrier gas to one or more burners provided on the walls of a furnace, is provided with a branching part, and each of a plurality of branch ducts, which branch out from the branching part, is connected to a corresponding burner. Also a damper, with which the tilt angle with respect to the direction of flow of the mixed fluid can be changed, is positioned in the fuel supply duct at the upstream side of the branching part so that a mutual difference will arise in the solid fuel concentrations of the mixed fluid supplied to the respective branch ducts. A fuel distributor for fuel supply duct is thus arranged. The tilt angle of the above-mentioned damper is adjusted to increase the concentration of solid fuel in the mixed fluid supplied to a specific burner. At a burner to which the high solid fuel concentration is supplied, stability of ignition and stable combustion of the ignited flame can be obtained during low load operation.