FIELD: fire safety.
SUBSTANCE: system comprises a closed buffer space (1) executed with a possibility of be connected or fluidly coupled to the target room (2) for supplying room air from the buffer space (1) to the target room (2), the oxygen content reduction mechanism (5) allocated to the buffer space (1) for setting and maintaining a reduced oxygen content in the spatial atmosphere of the buffer space (1) in comparison with the normal terrestrial atmosphere in such a way that the oxygen content in the spatial atmosphere of the buffer space (1) is lower than the oxygen content in the spatial atmosphere of the target room (2), and the mechanism (3) for supplying room air from the buffer space (1) to the target room (2). In this case, on the one hand, the relationship between the spatial volume of the buffer space (1) and the target room (2) is chosen and, on the other hand, the oxygen content in the spatial atmosphere of the buffer space (1) is reduced in comparison with the oxygen content in the normal terrestrial atmosphere before supplying room air from the buffer space (1) to the target room (2), so that the oxygen content in the spatial atmosphere of the target room (2) falls below a predetermined value, and the oxygen content in the spatial atmosphere of the buffer space (1) increases by no more than 0.15 % by volume as a result of the supply of room air from the buffer space (1) to the target room (2). The spatial volume of the buffer space (1) and the spatial volume of the target room (2) are additionally chosen in such a way that the buffer space (1) is much larger than the target room (2).
EFFECT: invention provides an effective and cost-effective protection of the rooms from fire.
33 cl, 5 dwg
