| 摘要 |
PROBLEM TO BE SOLVED: To reduce environmental load such as dioxin and carbon monoxide included in exhaustion gas after combustion by complete combustion of the exhaustion gas in a secondary combustion chamber of a combustion device. SOLUTION: At least oxygen concentration, trend of oxygen concentration variation with time, temperature and trend of temperature variation with time of the exhaust gas after combustion are measured by an oximeter 101 and a thermometer 102 provided in the secondary chamber S2 and are output to a control part 100. Based on the measured values, the control part 100 calculates a secondary combustion air supply quantity and determines opening of a damper 105. In the case where two or more calculated secondary combustion air supply quantities are provided, the supply quantity with the largest variation of supply quantity of the secondary combustion air is regarded as the secondary combustion air supply quantity to be blown into the secondary combustion chamber and the opening of the damper 105 is determined. This result is output to the damper 105 and the secondary combustion air supply quantity is controlled. COPYRIGHT: (C)2008,JPO&INPIT
|
