| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a combustion control device capable of properly detecting improper fuel generated by incomplete combustion even if a thermal dose of a burner in use is changed and avoiding early fire extinguishing and late fire extinguishing caused by an improper amount of the thermal dose of the burner. <P>SOLUTION: The combustion control device includes a combustion flame temperature detection means, an exhaust blocked state detection means that detects the blocked state of exhaust gas by detecting the ambient temperature of a heat exchanger, and a controller to control burner combustion based on the output of the combustion flame temperature detection means and the exhaust blocked state detection means. The combustion control device terminates the combustion of the burner when a first detection temperature has become lower than a set value to determine that the thermal dose of the burner is large when a second detection temperature, i.e., the ambient temperature of the heat exchanger heated by the burner is high, and to determine that the thermal dose of the burner is small when the second detection temperature is low where setting is made in such a way that the second detection temperature becomes higher and the thermal dose of the burner becomes larger, the set value of the first detection temperature becomes larger. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
