Inter-switching heat accumulating regenerative burner system

摘要

The present invention provides an alternate changeover regenerative burner system suitable for use as a heat source for an industrial furnace and the like where re-increase in temperature is relatively-often carried out; an alternate changeover regenerative burner constituted by a burner 2 having a regenerator 7 and air supply/exhaust switching mechanisms 12 and 13 for switching connection with an air supply system 17 and an exhaust system 16 of the burner 2 is regarded as a module unit; and three or more units of the alternate changeover regenerative burner constitute a combustion system 1; a ratio of the number of the burners 2 performing combustion and the number of the burners 2 being stopped is variable; and combustion is controlled in such a manner that all the units sequentially repeat alternate regenerative combustion with the units forming no fixed pairs. According to the present invention, a flow velocity of air injected from a burner throat can be variable irrespective of a quantity of combustion; the flow velocity of air emitted from the burner throat can be maintained high even if the operation is carried out with a quantity of combustion lower than the burner capacity; and a non-stationary flame can be formed in a wider range.