| 摘要 |
PURPOSE:To form uniform fire flames at the whole flame holes placed at the circumferential wall of a burner head and eliminate ignited white smoke at the same time by installing a perforated plate and a mixing cylinder in a burner head in such a way that the plate has a non-hole part facing a mixed gas inflow hole and the cylinder has an opening facing the non-hole part of the plate and bypass holes facing an igniting electrode. CONSTITUTION:Premixed gas flowing into a mixing cylinder 20 collides with the non-hole part of a perforated plate 21 to disperse around the non-hole part and passes through the plate 21. A part of the gas is spouted from flame holes 14a near an igniting electrode through bypass holes 20b and the most part of the gas joins from the circumferential part of the cylinder 20 into a central hole 20a and flows into a burner head 13 to spout from flame holes 14 at the cicumferential wall. Therefore, mixing of vaporized fuel and burning air is extremely satisfactory. And, as premixed gas flowing into flame holes 14a for ignition arrives at the flame holes earlier in time than premixed gas flowing from the other flame holes 14, white smoke is not generated.
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