What Is a Flame Detector?
A flame detector is a safety device used in power plant boilers, gas turbines, and similar equipment to detect ignition and flame-out events. Its primary function is to ensure operational safety by monitoring combustion.
This device verifies the combustion state and controls the fuel shut-off valve accordingly. Flame detectors come in various types, such as bimetallic thermocouples, photodiode-based, rectification-based, and ultraviolet-based detectors.
Choosing the right type of flame detector is critical and depends on factors like the fuel type (oil or gas) and combustion intensity. Generally, detectors that sense optical phenomena or electrical events related to the flame are preferred over those relying solely on heat detection.