To provide a reactor using a high-temperature air combustion technique by which the temperature difference in the reactor can be made smaller than usual.
A second burner 8 is arranged so that fuel is jetted toward the space formed among two or more adjacent reaction tubes 7 in the extension direction of the tubes 7. The temperature in the reactor is raised by the combustion of first burners 3a-6a until the condition in a main body 1 of the reactor becomes a high-temperature air combustion state. After the condition in the main body 1 becomes the high-temperature air combustion state, the combustion of the second burner 8 is started and then the amount of the fuel to be burned at the plurality of the first burners 3a-6a is decreased as the amount of the fuel to be burned at the second burner 8 is increased to obtain the required combustion state. Combustion gas circulating units 12, 13 are arranged outside a combustion chamber 2 for withdrawing the combustion gas in the chamber 2 to the outside of the chamber 2 and introducing the withdrawn combustion gas again into the chamber 2. The flame of the second burner 8 is controlled by the combustion gas reintroduced into the chamber 2 from the units 12, 13.
COPYRIGHT: (C)2005,JPO&NCIPI
Toshiaki Yoshioka
Hozumi Yoshikazu
Tohru Shiozaki
Toshiaki Hasegawa
Shin Mochida
Japan Furness Co., Ltd.
| JP9178112A | ||||
| JP10281665A | ||||
| JP2001152166A |