| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce heat loss as well as the concentration of NOx in exhaust gas by a method wherein a heat generating unit, provided with a far infrared rays radiating tube at the outlet port of combustion gas of a catalyst combustion device, is connected in series to a heat generating unit, provided with a far infrared rays radiating tube at the combustion gas outlet port of a burner combustion device. SOLUTION: A burner combustion device 1 is provided with a fuel supplying port 2a for a burner and a combustion air inlet port 4, opened in the burner. A far infrared rays radiating tube 6a is connected to the combustion gas outlet port of the burner combustion device 1. The exhaust port of the far infrared rays radiating tube 6a is connected to the suction port of a catalyst combustion device 7, the combustion gas outlet port of the catalyst combustion device 7 is connected to a far infrared rays radiating tube 6a, the exhaust port of the far infrared rays radiating tube 6b is connected to the suction port of a catalyst combustion device 8 and the combustion gas outlet port of the catalyst combustion device 8 is connected to the far infrared rays radiating tube 6c. In this case, the suction port of the catalyst combustion device 7 and the suction port of the other catalyst combustion device 8 are provided with a fuel supplying pipe 2b and another fuel supplying tube 2c respectively.</p> |
