| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a combustion apparatus that maintains good combustibility and achieves stable combustion by accurately controlling the supply amount of combustion air in response to fluctuation of the combustion amount. <P>SOLUTION: A blower 28 supplies combustion air to a burner 24. A heat exchanger 32 preheats the combustion air compressed from the blower 28 by exhaust gas generated by fuel combustion. An opening control means 50 adjusts the opening of a damper 42 which corresponds to air ratio within a predetermined range in response to the combustion amount. A rotation number determining means 52 determines a first rotation number N1 of the blower 28 based on the data table through the determined combustion amount and the temperature of the combustion air detected by a second temperature sensor 36. A rotation number control means 54 feedbacks and controls the rotation number of the blower 28 so that the air ratio of the burner 24 is the target air ratio in response to the oxygen concentration detected by an oxygen concentration sensor 44. <P>COPYRIGHT: (C)2013,JPO&INPIT |
