公开(公告)号：US20130255547A1

公开(公告)日：2013-10-03

申请号：US13902164

申请日：2013-05-31

申请人： BABCOCK-HITACHI K.K

发明人： Yuki KAMIKAWA ,  Masayuki TANIGUCHI ,  Hisayuki ORITA ,  Hironobu KOBAYASHI ,  Akira BABA ,  Toshihiko MINE ,  Shinichirou NOMURA ,  Noriyuki OOYATSU ,  Satoshi TADAKUMA ,  Hidehisa YOSHIZAKO ,  Hiroaki KANEMOTO ,  Kouji KURAMASHI ,  Akihito ORII ,  Shinji TSUDA ,  Hirofumi OKAZAKI ,  Takanori YANO ,  Katsumi SHIMOHIRA

IPC分类号： F23N3/00 ,  F23D1/00

CPC分类号： F23N3/002 ,  F22B1/22 ,  F23B5/02 ,  F23C5/28 ,  F23C7/008 ,  F23C7/04 ,  F23D1/005 ,  F23L9/04 ,  F23L13/06 ,  Y02E20/328

摘要： A pulverized coal-fired boiler efficiently supplies air to a central part of a furnace and the neighborhood of a furnace wall, thereby promoting mixture with combustion gas, and reducing both NOx and CO. The main after air ports are structured so as to jet air having a large momentum for enabling arrival at the central part of the furnace, and the sub-after air ports are structured so as to jet air having a small momentum to the neighborhood of the wall face of the furnace, and a sectional center of each of the sub-after air ports is within a range from 1 to 5 times of a caliber of the main after air ports from a sectional center of each of the main after air ports.

摘要翻译： 粉煤燃烧锅炉有效地向炉的中心部分和炉壁附近供应空气，从而促进与燃烧气体的混合，并且还可以减少NOx和CO。主后气道被构造成喷射空气 具有能够到达炉的中心部的大动量，并且副后空气构造成将具有小动量的空气喷射到炉壁面附近，并且每个 次后空气口的主后排气口的距离为主后排气口的口径的1〜5倍的范围。