| 摘要 |
PURPOSE:To obtain the blue flame combustion of kerosine with a simple constitution having no evaporating surface by a method wherein the titled burner is constituted of a conical flame keeping plate, provided with a multiple of small holes, and a combustion tube while an annular plate is connected to the top of the combustion tube and the flame keeping plate is arranged so as to be contacted with or close to the annular plate. CONSTITUTION:Combustion gas flows from the downstream end of a combustion tube 1 into a furnace, however, a part of the combustion gas flows in the direction of a spray nozzle 3 and circulates in the flame keeping plate 2. The circulation of the combustion gas is more activated by making the spray pattern of the spray nozzle 3 a hollow type and whereby the temperatures of the spray nozzle 3 and a space around the nozzle 3 are increased. The temperature rise of the space around the spray nozzle 3 is started simultaneously with the ignition and the most of fuel is evaporated in high-temperature atmosphere simultaneously with the spraying of the fuel, thereafter, the fuel is burnt in a condition that it contains very small amount of oil drops and generates blue flames.
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