DEVICE FOR AIR CONFLICT CONTROL OF BURNERS AT VARIABLE COMBUSTION AIR TEMPERATURE

摘要

The air ratio control apparatus is for maintaining the optimum mixture ratio of air and fuel to burners in which the variable temperature air is preheated. The object of the invention is to provide a simple, cost-effective device that regulates selbsttenetig and temperaturabhaengig the Mischungsverhaeltnis the burner. The object of the invention is achieved by inserting into the pipelines of the combustion air and / or the fuel gas a thermosensitive material (eg bimetal) and, by altering the opening ratio of the duplex, acting on the mixture ratio. The change in the opening ratio is achieved by heating the duese by the medium which flows through or by direct electrical heating. The device can preferably be used for readjusting the gas and / or air flow rate in gas burners on industrial furnaces.