公开(公告)号：US20130312700A1

公开(公告)日：2013-11-28

申请号：US13855984

申请日：2013-04-03

Applicant: PALOMA CO. LTD.

Inventor： Hiroshi ODA

IPC: F02B17/00

CPC classification number: F02B17/00 ,  F23C2201/20 ,  F23C2900/06043 ,  F23D14/02 ,  F23D14/70 ,  F23D23/00 ,  F23D2203/101 ,  F23D2203/102 ,  F23D2900/11401 ,  F23D2900/21003

Abstract: A rich-lean burner includes an inner cylinder to which lean gas, which is a mixture of gas and combustion air, is supplied, and an outer cylinder that is coaxially disposed around the inner cylinder such that rich gas, which is a mixture of gas and combustion air, is supplied between the inner cylinder and the outer cylinder. A burner head, which has small holes and whose diameter decreases toward the leading end, is provided on an opening of the inner cylinder. The burner head is obtained by forming a perforated metal, in which the small holes are arranged in a zigzag manner, into a conical shape. An interval between each of the small holes is two to three times the diameter of the small holes. The total area of the small holes is larger than the area of an upper end opening of an upper inner cylinder.

Abstract translation: 富氧燃烧器包括内筒，供给作为气体和燃烧空气的混合气体的贫气，内圆筒同轴地设置在内筒周围，使得富气体是气体混合物 并且在内筒和外筒之间供应燃烧空气。 具有小孔并且其直径朝向前端减小的燃烧器头设置在内筒的开口上。 燃烧器头部通过将小孔以锯齿形的方式形成为圆锥形状的多孔金属而获得。 每个小孔之间的间隔是小孔直径的2-3倍。 小孔的总面积大于上内筒的上端开口面积。