METHOD FOR NORMALISATION OF GAS-AIR ENVIRONMENT PARAMETERS IN SEALED ROOMS OF HABITABLE FACILITIES AFTER FIRE AND FIRE-FIGHTING AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC A62C3/00 

FIELD: fire safety.

SUBSTANCE: method for normalisation of the air-gas environment parameters by restoration of the initial set values of oxygen content and hypoxic gas-air environment pressure by dividing the AGE into oxygen and nitrogen or an inert gas, compressing nitrogen or inert gas into the appropriate assembly of cylinders with nitrogen or inert gas, compressing the AGE into a high pressure air cylinders assembly, addition of oxygen from the oxygen cylinder assembly, carbon dioxide removal from the AGE and its enrichment with oxygen using an air regeneration assembly and its purification by means of filters for removal of mechanical impurities, harmful chemicals and carbon monoxide. According to the invention, to normalise the AGE parameters after a fire and fire-fighting, the air from the emergency room is piped to a non-emergency sealed room with normal AGE parameters by free flow or by a flow stimulator, at that, pressure in the emergency room resulting from fire and fire-fighting decreases, while the AGE passes through the normalisation assembly, cleansing of smoke, aerosols, harmful chemicals, oxidation of carbon monoxide to carbon dioxide and normalisation of temperature, and AGE delivered to the non-emergency sealed room is purified from carbon dioxide by the regular air regeneration system, which, in addition, adds the necessary amount of oxygen, as a result the AGE pressure in the non-emergency room increases, so its excess is compressed by the compressor into high-pressure air cylinders, and when the pressure in the emergency room reaches a normal value or a value close to it, a flow stimulator is activated and used to intake the AGE via a pipeline from the emergency room and return the AGE normalised in all parameters except for the carbon dioxide via another pipeline after passing the normalisation unit, or return the fully purified AGE from the non-emergency room to the emergency room via a pipeline due to the pressure drop created by the flow stimulator, and the normalisation process is continued in the emergency room until the predetermined level of AGE parameters is reached.

EFFECT: complex normalization of the air-gas environment of the emergency room according to the parameters of excessive pressure, temperature, content of harmful chemicals.

8 cl, 1 dwg