| 摘要 |
<p>PURPOSE:To obtain a combustion device which increased NOX reduction effect by exhaust gas recirculation, reduces high load combustion by perfect combustion and a combustion noise, attains a high turn down ration and enhances the durability of a combustion section. CONSTITUTION:The bottom of a combustion chamber 30 is divided. There are provided a wall which is slightly extended upwards for every divided bottom and the bottom 13 which is angle-shaped and provided with a slightly upward inclination directed at the central axis, thereby forming a combustion section. A plurality of premixed air ejection holes 15 having an upward angle along the angle-shaped upward inclination are installed in such a fashion that they may face each other. In addition, there are installed a partitioning board and a divided fuel supply pipeline to the upstream side of the combustion section. A water flow passage is also installed to the combustion section.</p> |
