DEVICE FOR PRESERVATION AND PURIFICATION OF POLLUTED AIR Russian patent published in 2000 - IPC

FIELD: air purification and recovery, applicable for purification and preservation of highly polluted air of air-proof rooms in the conditions of deficit of pure air and impossibility of removal of polluted air from the room into the atmosphere. SUBSTANCE: the device has a fan, whose inlet and outlet are connected to the room under protection through air conduits with stop-control valves, and an air purifier installed in the suction air conduit, installed in the delivery air conduit is a foam generator provided with a source of foam-producing liquid, and located in the suction air conduit between the air purifier and the room under protection is a foam destructor provided with a separator; the suction air conduit line between the fan and air purifier is additionally connected to the upper zone of the room under protection through a section of the air conduit with the stop-control valves, and the suction air conduit in the section between the separator and air purifier is connected through an additional air conduit equipped with stop-control valves to the upper Zone of the room under protection, and through an additional air conduit - to the inflated shell positioned outside the room under protection. EFFECT: enhanced rate and quality of purification. 1 dwg