Patent ID: 8418661
Filing Date: 2013-04-16
Classification: F23D,F23N

Abstract:
1. A combustion apparatus, comprising: a plurality of burners; a plurality of fuel supply channels through which fuel to be supplied to the burners passes: a blower for supplying air to the burners; an air supply passage disposed downstream of the blower and through which air to be supplied to the burners passes; and a pressure regulator having a gas outlet formed downstream in a gas flowing direction, being configured to regulate gas supplied at a primary pressure to gas at a secondary pressure in response to a predetermined signal pressure sensed from at least one selected from a part of the air supply passage and the blower, and discharging the regulated gas through the gas outlet, the burners being divided into a plurality of burner groups each consisting of at least one of the burners, the pressure regulator being branched at a portion located immediately after the gas outlet so that the portion is connected to the respective fuel supply channels, and the fuel supply channels each being configured to supply fuel to the respective burner groups and being provided with a switching valve for either shutting off or reducing fuel supply to at least a part of the burner groups.