COMBUSTION METHOD AND COMBUSTION DEVICE

COMBUSTION METHOD AND COMBUSTION DEVICE

PROBLEM TO BE SOLVED: To provide a combustion method capable of burning fuel and oxidation gas after mixing the same with a risk of backfire avoided.SOLUTION: Fuel gas G and oxidation gas A is separately supplied to a combustion space N under a supply condition that a flow rate at which a mixed gas...

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Bibliographische Detailangaben
Hauptverfasser: KEGASA AKISHI, SHIRAGAMI YOSUKE, HORI TSUKASA, HISAKADO YOSHINORI
Format: Patent
Sprache:eng ; jpn
Schlagworte:
BLASTING
BURNERS
COMBUSTION APPARATUS
COMBUSTION PROCESSES
HEATING
LIGHTING
MECHANICAL ENGINEERING
WEAPONS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a combustion method capable of burning fuel and oxidation gas after mixing the same with a risk of backfire avoided.SOLUTION: Fuel gas G and oxidation gas A is separately supplied to a combustion space N under a supply condition that a flow rate at which a mixed gas of the fuel gas G and the oxidation gas A flows in the combustion space N is faster than a combustion speed of the mixed gas in the combustion space. Then, after the flow rate at which the mixed gas flows in the combustion space N is reduced not faster than the combustion speed, the mixed gas is ignited and burned by flame F formed by ignition. 【課題】逆火の発生を回避した状態で、燃料と酸化剤ガスとを混合させたのちに燃焼させることができる燃焼方法を提供する。【解決手段】燃料ガスＧと酸化剤ガスＡとを各別に燃焼空間Ｎに供給し、かつ、燃料ガスＧと酸化剤ガスＡとの混合ガスが燃焼空間Ｎを流動する流速が、燃焼空間Ｎにおける混合ガスの燃焼速度よりも速くなるようにする供給条件にて、燃料ガスＧと酸化剤ガスＡとを燃焼空間Ｎに供給し、燃焼空間Ｎを流動する混合ガスの流速が燃焼速度以下に減速した後に、混合ガスを着火させて火炎Ｆを形成して燃焼させる。【選択図】図２