| 摘要 |
PURPOSE:To spare fuel oil, energy and resources by stopping the burner when the temperature of a secondary combustion chamber increases, and introducing air heated by the combustion heat of the primary combustion chamber to a secondary combustion chamber to carry out recombustion of exhaust gas. CONSTITUTION:When the temperature within a secondary combustion chamber 3 reaches a predetermined temperature, the burner 14 is stopped, and a blower 12 is driven to supply air to an air pipe 11. The supplied air is heated by combustion heat when passing through a part 11a of the air pipe 11. Then, the supplied air is blown off in the tangential direction of the wall surface of the secondary combustion chamber 3 from the leading end opening part of the branched pipe 11ba. By this blown off air the exhaust gas supplied from the primary combustion chamber 2 turns along the wall surface within the secondary air chamber 3, and is reburnt. |
