| 摘要 |
A hot fluid generating apparatus includes a combustion chamber (1), a regenerative combustion burner (10,10A,10B), a fluid passage (6) formed along a wall structure (5) of the combustion chamber (1), and a device (3) for causing fluid to flow in the fluid passage (6). The combustion chamber (1) has a flame radiation heat transfer portion only. A portion (12) of the wall structure opposite to the burner (10,10A,10B) is utilized as a radiation heat transfer portion. A portion of exhaust gas from the burner (10,10A,10B) is recirculated to the supply air to suppress generation of NOx. A portion (1b) of the wall structure close to the burner (10,10A,10B) is formed to be a cone. |
