BURNER FOR TWO KINDS OF FUEL

• Main Author: SHIBATA YUKI
• Format: Patent
• Language: English; Japanese
• Published: 28.06.2018
• Subjects: BLASTING; BURNERS; COMBUSTION APPARATUS; COMBUSTION PROCESSES; HEATING; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

PROBLEM TO BE SOLVED: To provide a burner for two kinds of fuel that can remarkably change the ratio of liquid fuel to gas fuel while suitably atomizing and burning liquid fuel, and can be made to have a simplified structure therefor.SOLUTION: The burner for two kinds of fuel comprises: a liquid fuel ejection part D disposed in the center part of the burner to eject liquid fuel atomized by atomizing air into a combustion space; a cylindrical combustion air supply path Ls disposed on the outer periphery of the burner to supply an air ejection part 12 for ejecting combustion air with combustion air; and a plurality of gas fuel ejection holes for ejecting gas fuel supplied via a gas fuel supply path Lg into the combustion space and a plurality of air introduction holes 14 for introducing a part of the combustion air flowing through the combustion air supply path Ls by virtue of a suction force generated by the ejection of the liquid fuel and the atomizing air from the liquid fuel ejection part D, disposed with phase deviation in the circumferential direction on positions equivalent to midway between the liquid fuel ejection part D and the combustion air supply path Ls.SELECTED DRAWING: Figure 2 【課題】液体燃料を適切に霧化させて良好に燃焼させるようにしながらも、液体燃料と気体燃料との比率を大きく変更させることができ、しかも、そのための構成の簡素化を図ることができる２種燃料バーナを提供する。【解決手段】バーナ中心部に、霧化用空気にて霧化させた液体燃料を燃焼空間に噴出する液体燃料噴出部Ｄが設けられ、バーナ外周部に、燃焼用空気を噴出する空気噴出部１２に燃焼用空気を供給する筒状の燃焼用空気供給路Ｌｓが設けられ、液体燃料噴出部Ｄと燃焼用空気供給路Ｌｓとの間に相当する箇所に、気体燃料供給路Ｌｇを通して供給される気体燃料を燃焼空間に噴出する気体燃料噴出孔と、液体燃料噴出部Ｄからの液体燃料及び霧化用空気の噴出により発生する吸引力にて燃焼用空気供給路Ｌｓを通流する燃焼用空気の一部を導入する空気導入孔１４が、周方向での位相を異ならせて設けられている。【選択図】図２