What is the function of a flame scanner in a boiler system?

The function of a flame scanner in a boiler system is to detect the presence of a flame. This critical component ensures the safe and efficient operation of the boiler. By confirming that there is an active flame, the flame scanner helps prevent unsafe conditions, such as unburned fuel accumulating within the combustion chamber. If the flame goes out or is not detected, the scanner can signal the control system to shut down the fuel supply, thereby mitigating the risk of explosions or equipment damage.

The importance of this function cannot be overstated, as flame safety is paramount in combustion processes. A reliable flame detection system allows operators to monitor the combustion process continuously, ensuring that the boiler operates within safe parameters.

Other functions mentioned, such as measuring water temperature, regulating pressure levels, or monitoring feedwater quality, are typically handled by different instruments and systems in a boiler setup. These aspects are essential for overall boiler operation but do not relate to the specific role of a flame scanner, which is solely focused on flame detection for safety and operational efficiency.