| 摘要 |
<p>PROBLEM TO BE SOLVED: To achieve a lowering of NOx by stable combustion of a lean premixed gas. SOLUTION: A pilot burner 34 is provided to singly inject a fuel to the center part of a shaft on the upstream side of a combustion chamber and a plurality of premixing burners 23, 23... are arranged on the same circumference in the perimeter of the pilot burner 34. A resistor 40 which is formed in a ring on the downstream side from injection ports of the premixing burners 23 on the outer circumference side of the pilot burner 34 along the plurality of premixing burners 23, 23... arranged on the same circumference is installed to narrow a passage of a premixed gas 5 injected from the premixing burners 23.</p> |
