US 11,719,435 B2
Combustion heater control system with dynamic safety settings and associated methods
Chad Carroll, Tulsa, OK (US); Thomas Korb, Tulsa, OK (US); Ryan Morgan, Tulsa, OK (US); Kevin Anderson, Davis, CA (US); and Mark Vaccari, Broken Arrow, OK (US)
Assigned to Onpoint Technologies, LLC, Wichita, KS (US)
Appl. No. 17/624,324
Filed by ONPOINT TECHNOLOGIES, LLC, Wichita, KS (US)
PCT Filed Jun. 19, 2020, PCT No. PCT/IB2020/055822
§ 371(c)(1), (2) Date Dec. 31, 2021,
PCT Pub. No. WO2020/255091, PCT Pub. Date Dec. 24, 2020.
Claims priority of provisional application 62/864,992, filed on Jun. 21, 2019.
Claims priority of provisional application 62/865,007, filed on Jun. 21, 2019.
Prior Publication US 2022/0349579 A1, Nov. 3, 2022
Int. Cl. F23N 5/24 (2006.01)
CPC F23N 5/242 (2013.01) [F23N 2225/10 (2020.01); F23N 2235/12 (2020.01); F23N 2900/05003 (2013.01)] 56 Claims
OG exemplary drawing
 
1. 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; and
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.