| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a combustion device which emits much less NOx than a conventional device. SOLUTION: A disc-like combustion part D is provided in a combustion air flow Af with its axial direction being rendered to go along the air flow direction of the air flow Af. A plurality of main gas injecting parts Nm for injecting fuel gas G towards the downstream side of the air flow, are provided at the periphery of the combustion part D, i.e., at the positions that shut out or nearly shut out the flow of combustion air A, with an interval therebetween in the circumferential direction. Further, a plurality of flame holding gas injecting parts Ns for injecting the fuel gas G for holding flames towards the outwardly radial direction of the combustion part D, are provided at the periphery of the combustion part D, i.e., at the positions more upstream of the air flow than the main gas injecting parts Nm, so as to be circumferentially positioned at the same or substantially the same positions as the injecting parts Nm.</p> |
