| 摘要 |
PROBLEM TO BE SOLVED: To provide a furnace temperature combustion control method which achieves a quick response in the control of the temperature of a furnace to the altering of a set value of the temperature of the furnace. SOLUTION: A control output correction circuit which has a function of adding a correction valueΔMV up to a furnace temperature control output MV is provided between a furnace temperature control loop and a combustion control switch. The correction circuit has an arithmetic correction means 21 to compute the correction value AMV based on a deviation of set values SV of the temperature of the furnace before and after the altering. Moreover, a correction value changeover switch 17 is provided in switching on whether the correction valueΔMV is added up to the furnace temperature control output MV or not and a flip flop circuit 20 is arranged to decide the switching of the correction value changeover switch 17.
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