METHOD FOR CONTROLLING PARAMETERS OF OXYGEN AND NITROGEN CONTENT IN GAS-AIR ENVIRONMENT SUPPLIED BY VENTILATION SYSTEM TO INCREASE FIRE SAFETY AND PROVIDE METEOROLOGICAL CONDITIONS AND AIR PURITY, AND DEVICE IMPLEMENTING IT Russian patent published in 2022 - IPC A62C2/00 F24F7/00 

FIELD: ventilation systems.

SUBSTANCE: present invention proposes a method for controlling the parameters of the content of oxygen and nitrogen in the gas-air medium supplied by the ventilation system to improve fire safety, and providing meteorological conditions and air purity, is used for ventilation systems of premises. The method for controlling the parameters of the oxygen and nitrogen content in the gas-air medium supplied by the ventilation system to improve fire safety, and providing meteorological conditions and air purity, provides for the modernization of the ventilation system installed on the premises in such a way that nitrogen is added to the air supplied through the ventilation system from an external source of nitrogen and ventilation of the room is carried out by a fireproof gas-air medium with a low oxygen content and a high nitrogen content. Dilution of the supplied air with nitrogen is carried out by installing at least one gas mixer in at least one air duct of a standardly installed ventilation system, to which a controlled amount of nitrogen is supplied from an external source through an additionally installed fitting.

EFFECT: fire prevention.

3 cl, 1 dwg