What is the primary control method for dry low NOx burners?

The primary control method for dry low NOx burners involves an extensive solenoid gas staging system. This system is designed to precisely control the fuel-air mixture and the timing of fuel delivery into the combustion zone, which is critical for reducing nitrogen oxide (NOx) emissions during the combustion process.

In dry low NOx burners, the objective is to achieve efficient combustion at a lower temperature, thereby minimizing NOx formation, which typically increases with higher combustion temperatures. The solenoid gas staging system allows for the modulation of gas flow rates based on the operating conditions. By adjusting the amount of fuel injected at various stages of the burner operation, the system can optimize the combustion process to maintain low emissions while ensuring stable operation.

Moreover, the use of solenoid valves allows for rapid and precise adjustments in fuel flow, which is essential for adhering to strict emission regulations and improving overall efficiency in a power plant setting. This technology embodies advanced combustion control and is specifically tailored for applications where low NOx emissions are a critical requirement.