Research on simulation test of thermal interference of flame detector

Thermal interference will have a certain impact on the response performance of flame detectors. In order to evaluate the anti-thermal interference performance of the detector, it is necessary to study standardized thermal interference simulation test methods. Common thermal interference mainly stems from two types of conditions: the heating of various electrical equipment, pipes and containers in industrial sites; the heating of the detector itself or objects within its monitoring range after being exposed to sunlight. Based on the analysis of the both types' thermal interference characteristics, and using Planck formula and the Stefan-Boltzmann law, the thermal interference equivalent blackbody radiation model and test methods of different severity levels are constructed. Experimental tests verify the feasibility and effectiveness of the method.