| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a premixed combustion device capable of being simply manufactured with a simple structure and with a small number of components, without requiring electrical energy, and capable of stably operating under a high sound condition, and to provide a flame control method thereof.SOLUTION: Self-excited vibration is generated by locally heating resonance pipes 41, 42 with heating means (excitation burners 51, 52), to form a standing sound field in a combustion space 30, and by making the standing sound field directly act on flame in the combustion space 30, flame holding is performed using secondary flow in a vertical direction with respect to the travel direction of pressure waves occurring in an antinode of speed vibration of the standing sound field, and wrinkles formed in flame.</p> |
