Apparatus and method for detecting furnace flooding
AssigneeHoneywell International Inc.
InventorsGregory E. Stewart, Wendy K. Foslien
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Abstract
A method includes identifying a first steady-state gain associated with a relationship between a characteristic of a furnace and a setpoint used by a controller that is configured to control the characteristic of the furnace, The first steady-state gain is identified using data collected when the furnace is not suffering from flooding. The method also includes identifying a second steady-state gain associated with the relationship during operation of the furnace. The method further includes comparing the first and second steady-state gains and identifying actual or potential flooding of the furnace based on the comparison.
Claims22
A method comprising:
- identifying a first steady-state gain associated with a relationship between a characteristic of a furnace and a setpoint used by a controller that is configured to control the characteristic of the furnace, the first steady-state gain identified using data collected when the furnace is not suffering from flooding;
- identifying a second steady-state gain associated with the relationship during operation of the furnace;
- comparing the first and second steady-state gains;
- and
- identifying actual or potential flooding of the furnace based on the comparison.
An apparatus comprising:
- at least one processing device configured to:
- identify a first steady-state gain associated with a relationship between a characteristic of a furnace and a setpoint used by a controller that is configured to control the characteristic of the furnace, using data collected when the furnace is not suffering from flooding;
- identify a second steady-state gain associated with the relationship during operation of the furnace;
- compare the first and second steady-state gains;
- and
- identify actual or potential flooding of the furnace based on the comparison.
A non-transitory computer readable medium containing instructions that when executed cause at least one processing device to:
- identify a first steady-state gain associated with a relationship between a characteristic of a furnace and a setpoint used by a controller that is configured to control the characteristic of the furnace, using data collected when the furnace is not suffering from flooding;
- identify a second steady-state gain associated with the relationship during operation of the furnace;
- compare the first and second steady-state gains;
- and
- identify actual or potential flooding of the furnace based on the comparison.
Dependencies are inferred from the claim text.