Dfi燃烧器

DFI burner

Abstract

The invention concerns a DFI (Direct Flame Impingement) burner (1), comprising a metal block (2) and at least two nozzles (3,4) projecting out from the metal block (2), characterized in that each of the nozzles (3,4) comprises a set of nozzle openings (11,12a,12b) comprising at least one fuel opening (11) and at least one oxidant opening (12a,12b), in that the set of openings (11,12a,12b) in each nozzle (3,4) is identical, comprising corresponding fuel and oxidant openings (11,12a,12b), in that the metal block (2) comprises only one main fuel inlet (5) and only one main oxidant inlet (6), in that the main oxidant inlet (6) is connected to at least one main oxidant chamber (8a,8b), connected to at least one oxidant opening (12a,12b) in the set of openings in each nozzle (3,4) via apertures (10a,10b) of identical length and cross section, and in that the main fuel inlet (5) is connected to at least one main fuel chamber (7), connected to at least one fuel opening (11) in the set of openings in each nozzle (3,4) via apertures (9) of identical length and cross section, whereby the gas pressure of fuel or oxidant is equal over all corresponding fuel and oxidant openings in the set of openings in each nozzle (3,4).
一种DFI(直焰冲击)燃烧器(1),该燃烧器包括金属块(2)和至少两个从金属块(2)上伸出的喷嘴(3、4)。本发明的特征在于:每个喷嘴(3、4)包括一组喷嘴口,喷嘴口组包括至少一个燃料喷嘴口和至少一个氧化剂喷嘴口;每个喷嘴(3、4)的喷嘴口组是相同的,包括相应的燃料喷嘴口和氧化剂喷嘴口;金属块(2)包括唯一的主燃料入口(5)和唯一的主氧化剂入口(6);主氧化剂入口(6)被连接到至少一个主氧化剂腔(8a、8b),该主氧化剂腔通过相同长度和相同横截面的孔连接到每个喷嘴(3、4)的喷嘴口组中的至少一个氧化剂喷嘴口;主燃料入口(5)被连接到至少一个主燃料腔(7),该主燃料腔通过相同长度和相同横截面的孔连接到每个喷嘴(3、4)的喷嘴口组中的至少一个燃料喷嘴口,从而每个喷嘴(3、4)的喷嘴口组中的所有相应的燃料和氧化剂喷嘴口的燃料或氧化剂的气压都是相等的。

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    CN-106676252-AMay 17, 2017东北大学Direct flame impact heating device for metal strips