| 摘要 |
PROBLEM TO BE SOLVED: To provide a swirl combustion device, in which a higher space heat generation rate is achieved and the generation of NOx is low by applying an improvement to a swing combustion device. SOLUTION: An outer peripheral wall 2 and an inner peripheral wall 3 are cylindrical, and the inner peripheral wall 3 is concentrically arranged inside the outer peripheral wall 2. A plurality of burner holes 9 are provided on the inner peripheral wall 3. Thin (mixed) gas is jetted from the burner holes 9 to form a swirl flame. At the center of a bottom plate 4, burner holes 22 for high concentration gas are provided on la surface and an object 21 containing a low concentration gas jet pipe 26 is provided. High concentration (excessively high) gas, jetted to a combustion chamber 10 from the burner holes 22 for high concentration gas, is mixed with a the burnt gas to be completely burnt due to the swirling force of the burnt gas generated by the combustion of the thin (mixed) gas and the jetting force of low concentration gas from the jet pipe 26 for low concentration gas, so that the space heat generation rate is high. At this time, the high concentration (excessively high) gas is diluted by the burnt gas, so that the production of NOx is suppressed.
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