FIRE CHAMBER FOR DETERMINING THE VALUE OF THE EXTINGUISHING GAS CONCENTRATION OF EXTINGUISHING GAS SUBSTANCES

摘要

The utility model relates to fire-fighting equipment, experimental equipment of laboratories, in particular, to test benches designed to assess the compliance of the characteristics of fire-extinguishing agents with the established requirements by extinguishing the fire source. The fire chamber for determining the value of the fire extinguishing concentration of the GFFS contains a refractory glass body with a volume of 1 m 3 , consisting of four walls, a ceiling and a bottom, forming its inner closed space, and made with the possibility of accommodating four stainless steel burners. The burners are shielded with a protective screen and placed in an internal closed space of a refractory glass body at a distance of 50 ± 5 mm from the walls. At the same time, two burners are placed in opposite corners of the refractory glass body relative to the floor at a level of 10% and one burner each at levels of 50% and 75% of the height of the refractory glass body so that the jets of gas extinguishing substances from the nozzle do not directly affect them, in an opening is located in the center of the ceiling, through which gas extinguishing substances are released into the closed space of the refractory glass body. Ventilation openings are located on the bottom and ceiling, providing ventilation and pressure relief during the release of gas extinguishing agents. The refractory glass body is made with the possibility of installing oxygen analyzers in it at heights of 10%, 50% and 80% of its height. The technical result provided by the claimed utility model consists in the development of a fire chamber made of refractory glass, which makes it possible to monitor the test process using a minimum amount of GFFS. 2 ill.