| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a combustor in which NOx can be reduced furthermore. SOLUTION: In a combustion tube 1 having an open forward end, a gas supply tube 2 having a closed forward end is disposed coaxially while projecting its forward end from the forward end of the combustion tube 1. On the forward end side circumferential wall of the gas supply tube 2, a plurality of gas jet parts N for jetting fuel gas G are provided while being distributed in the circumferential direction. Between the combustion tube 1 and the gas supply tube 2, an annular air outlet forming body 4 is disposed while fitting the inner circumferential fringe thereof over the gas supply tube 2 and being fitted, on the outer circumferential fringe thereof, with the combustion tube 1. The air outlet forming body 4 is provided, at an interval in the circumferential direction, with a plurality of air outlets 5 for delivering combustion air A in the axial direction of the gas supply tube 2. Each air outlet 5 is spaced apart from the gas supply tube 2 and the combustion tube 1 and shifted to the combustion tube 1 side in the radial direction of the gas supply tube 2.</p> |
