| 摘要 |
PROBLEM TO BE SOLVED: To make combustion stable in transition from initial operation when only a pilot burner is ignited to normal operation when both the pilot burner and a main burner are ignited in a vaporizing combustion device provided with the pilot burner and the main burner. SOLUTION: The vaporizing combustion device 1 is provided with a vaporizer 2 for vaporizing kerosene, an electric motor-driven type fuel pump 4, a burner unit 7 having the pilot burner 5 and the main burner 6, a combustion fan 8, and a combustion chamber 9 where combustion of the burner unit 7 is performed. Correction control is performed in the transition from the initial operation to the normal operation. A unit current-carrying time of a pump power source in initiation of the correction control (T0) is an initial unit current- carrying time. (Tf). As time goes on, the unit current-carrying time is increased discretely, finally becomes a normal unit current-carrying time (Tn). Hereby, fuel supplied to the burner unit 7 is increased gradually. Simultaneously, a selector valve 16 is shifted gradually from a pilot burner side (right end) to a position in the normal operation as time goes on.
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