| 摘要 |
PROBLEM TO BE SOLVED: To contrive to miniaturize the whole device all the more by improving a burner itself and incorporating an air preheating device into the burner. SOLUTION: An air preheating device-integrated burner 11 is laid out in a combustion chamber 12 in a boiler 10 in such a fashion that flames are formed toward the interior of the combustion chamber 12. This burner 11 is arranged to incorporate integrally an air preheating device (heat exchanger) into the burner main body. An exhaust gas duct 14 is provided on the exterior wall of the heat exchanger of the combustion chamber 12 by way of a flue 13. This exhaust gas duct 14 is laid out so that it may reach the air preheating device in the burner 11. |
