METHOD FOR EVALUATING EFFICIENCY OF FIRE EXTINGUISHING WITH ROBOTIC FIRE EXTINGUISHING INSTALLATIONS Russian patent published in 2024 - IPC A62C99/00 A62C3/00 G09B19/00 

FIELD: fire extinguishing.

SUBSTANCE: invention relates to the field of fire extinguishing, namely to a method for evaluating the effectiveness of extinguishing fires with robotic fire extinguishing installations (RFEI). In the proposed method, a standardized fire is extinguished with a fire load G_sf (MJ), with a specific fire load g (MJ/m²); at that, determining the extinguishing parameter by flow rate Q_e (l/s), determining the average irrigation intensity i_av ((l/s)/m²), determining the extinguishing speed indicator, characterized by the extinguishing time t_e (s), determining the performance indicator of the technical means, characterized by the activation time of the technical means t_act (s) before the start of extinguishing, determining the protected zone limits indicator, characterized by the technical means effective range, fire damage index is determined from the area of the burning surface S_sa (m²) for the time before the beginning of extinguishing t_act depending on the linear speed of combustion propagation v_l (m/s) at the early stage of the fire source development: S_sa=p(0.5⋅v_l⋅t_act)²; compliance with the condition of efficiency of technical means is checked, according to which the area of free development of the fire source S_fr (m²) during the time t_fr should not exceed the area S_sa: S_fr ≤ S_sa, and t_fr ≤ t_act; determining the effect of fire-extinguishing substances on the protected object, characterized by the irrigation area S_ir (m²) , which includes the area of the fire source S_f and the area of guidance error dS: S_ir=S_f+dS; at that, the standardized fire is placed on the area S = 1 m² in the centre of the section of the maximum permissible area of the fire centre S_max (m²) before the beginning of extinguishing, which is equal to area of fire elimination S_el (m²): S_max = S_el = 12 m², fire load G_sf is determined by the formula: G_sf=g⋅S; standardized fire and area S_max are located in the most remote protected zone at distance of effective radius of action of jet R_e; compliance with the efficiency condition is checked, according to which the area of the burning surface S_sa during the activation time t_act before the beginning of extinguishing does not exceed S_max: S_sa < S_max; extinguishing of the standardized fire is carried out by RFEI by sprinkling with line jets over the entire maximum allowable area of the fire source S_max taking into account the guidance error dS on the irrigation area S_ir: S_ir=S_max+dS, with established flow rate Q_e and with average irrigation intensity i_av.

EFFECT: disclosed is a method for evaluating the effectiveness of extinguishing fires with robotic fire extinguishing installations.

1 cl, 1 dwg