Combustion heater control system with dynamic safety settings and associated methods
AssigneeOnPoint Technologies, LLC
InventorsChad CARROLL, Thomas KORB, Ryan MORGAN, Kevin ANDERSON, Mark VACCARI
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Abstract
Combustion heater control systems and methods that include dynamic safety settings. Current operating parameters of the combustion heater are sensed at a plurality of time intervals and converted into a time-varying signal. The time-varying signal is compared to a burner stability envelope indicating when a burner is likely to enter an unstable state. The unstable state may include huffing, flashback, and/or liftoff. When the burner is likely to enter an unstable state, the combustion heater is controlled to prevent the unstable state.
Claims57
A process heater combustion stabilization method, comprising:
- sensing current operating parameters for a process heater at a plurality of time intervals;
- converting the current operating parameters into a time-varying signal;
- comparing the time-varying signal against a multi-dimensional burner stability envelope defined by a stability window of the process heater, each boundary of the stability window indicating when a burner within the combustion system likely enters an unstable state;
- altering operation of at least one burner of the process heater in response to the time-varying signal breaching the boundary of the stability window.
Process heater combustion stabilization d, comprising:
- scanning at least one flame of a process burner to capture flame data at each of a plurality of time intervals;
- converting the #dame data into a time-varying signal;
- comparing the time-varying signal with a multi-dimensional burner stability envelope defining a time-varying spectral signature at which at least one burner producing the at least one flame likely enters an unstable state;
- and,
- altering operation of said at least one burner when the time-varying signal matches the multi-dimensional burner stability envelope.
A process heater control system, comprising:
- one or more sensors sensing current operating parameters for a process heater at a plurality of time intervals;
- a processor;
- a memory storing:
- the sensed operating parameters, and
- a process heater stabilizer including computer readable instructions that, when executed by the processor, operate to:
- convert the operating parameters into a time-varying signal;
- compare the time-varying signal against a multi -dimensional burner stability envelope defined by a stability window of the process heater, each boundary of the stability window indicating when a burner within the combustion system likely enters an unstable state;
- and,
- alter operation of at least one burner of the process heater in response to the time-varying signal breaching the boundary of the stability window.
-65. (canceled)
Dependencies are inferred from the claim text.