| 摘要 |
PURPOSE:To maintain a temperature distribution inside a furnace favourably and to contrive reduction of cost of installation necessary for temperature control of the furnace, by controlling the temperature of every unit burner under a controlled state of air-fuel ratio of whole of a plurality of burners in the lump. CONSTITUTION:A common air-fuel ratio controller 21 is corresponding to a fuel flow adjusting valve 5 and an air flow adjusting valve 7 for each burner 1. An air-fuel ratio for every zone of a combustion furnace corresponding to every individual burner 1 depends upon a correction quantity by a valve peculiarity corrector 20 for every burner 1. The air-fuel ratio for every burner 1, therefore, is set up by correcting by the valve peculiarity corrector 20 for every burner 1 and a furnace temperature is set up by a furnace temperature setting instrument under a state wherein an average air-fuel ratio of whole burners is set up in an air-fuel ratio setting instrument 9. |
