| 摘要 |
PURPOSE:To simplify the structure and to miniaturize a burner size, by commonly using one feed air part for a plurality of combustion parts by enabling to exhaust gas remaining on the stopping side of combustion when the calorific power of a burner is changed. CONSTITUTION:When one, at least, among a plurality of combustion parts A is stopped burning, a feed air blower 11 is driven for a predetermined time. Then remaining exhaust gas and unburnt gas are forcibly discharged from the combustion part on the side of combustion stopped by the feed air. This prevent exhaust gas from mixing with combustion gas in the combustion part on the side of combustion continued. For this purpose, it is able to commonly use one feed air part B for a plurality of combustion parts A, so that the structure of pulsating burners of this kind can be simplified, and the size of a burner can be miniaturized as well. |
