Patent ID: 6478948
Filing Date: 2002-11-12
Classification: F23G,F23M,G01N

Abstract:
A method of controlling furnace boiler tube corrosion wherein the boiler tubes have a fire side that is exposed to products of combustion which creates electrochemical noise at the fire side surface, the tubes being in a furnace having burners to which fuel and air are provided comprising:a. attaching a probe to the interior side of the boiler tubes, the probe capable of measuring electrochemical noise occurring in an electrochemical system; b. monitoring the electrochemical noise occurring at the fire side surface of the boiler tubes; c. determining from the monitoring of the electrochemical noise a corrosion rate that is occurring at the fire side surface of the boiler tubes; d. deciding if the corrosion rate is acceptable; and e. if the corrosion rate is not acceptable, adjusting at least one of the fuel and air that is being provided to at least one of the burners.