| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To securely restrain noise due to increase of air supply quantity for combustion while securing stable combustion by restraining variation of combustion quantity, about a combustion device equipped with a combustion control means for performing combustion control by executing a high combustion control for adjusting combustion quantity in a high combustion quantity range by using a plurality of burner parts as combustion burner parts and a low combustion control for adjusting combustion quantity in a low combustion quantity range by reducing the number of the combustion burner parts than that at the time of the high combustion control. <P>SOLUTION: In the case that the combustion control means sets an upper limit value G1b' of the low combustion quantity range to be less than a lower limit value G2a of the high combustion quantity range and a target combustion quantity is in a middle combustion quantity range which is equal to or larger than the upper limit value G1b' of the low combustion quantity range and less than the lower limit value G2a of the high combustion quantity range, a middle combustion control for adjusting an average combustion quantity of burners to be in a middle combustion quantity range by switching execution of the high combustion control and the low combustion control. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
