Any facility that combusts fuel for process heating needs a burner management system (BMS). The BMS is a fuel safety system that works as a failsafe in case of any dangerous problems with the fuel. It’s governed by the boiler code NFPA 85.
How It Works
Boiler and combustion systems for power generation, campus heating, and process heating applications all follow the same basic process. Both air and fuel flow at a regulated pace and are heated or burned by a regulated flame.
If the flow of air, fuel, or flame changes irregularly, it can cause dangerous conditions. For example, it the air flow changed and extinguished the flame, but fuel continued to flow, it would cause a buildup of combustible fuel that could explode.
The BMS measures the air and fuel flow and detects the existence of a flame. If it notices any abnormalities, it shuts the fuel source down.
Designing and Modifying a BMS
Among Salas O’Brien’s many experts are specialists in designing, modifying, and replacing burner management systems. Our experience includes designing control wiring, logic modifications, and governors; replacing igniters; adding flame detectors, and more.
Here are a couple examples of past projects
Ohio River Station
At one coal-fueled station located on the Ohio river, the plant realized that the flame scanners for their 550MW boiler weren’t working properly. We replaced 80 of their flame scanners with Coen iScan 2 flame scanners and designed over 6,000 wiring terminations.
Plant in Kentucky
At another station, a 600MW coal-fueled power plant in Kentucky, twenty-eight of the plant’s original ignitors had become unreliable and needed to be replaced. We designed the BMS logic modifications for replacing 40 igniters total and adding flame rod detectors.