Research on Identification Technology for Fire Backdraft and Design of Early Warning Device

In recent years, fire backdraft has occurred frequently and caused many casualties. Given the current situation that firefighters lack technical measures to identify and deal with fire backdraft, to improve the ability of firefighters to deal with fire backdraft, a fire backdraft experimental device was established. Several fire backdraft experiments were carried out in various scenarios, the data of internal temperature, concentration for combustible gases, and oxygen were collected and characteristics of smoke before backdraft occurred were observed. technics for identification of fire backdraft was proposed, development of the warning devices for fire backdraft was introduced. this study will play a very important role for firefighters to navigate the backdraft and avoid further casualties to firefighters.