Smoke protection system and method for removing smoke from fire areas of a building and the smoke-free escape of escape routes of the building

摘要

Smoke protection equipment has an air exhaust equipment (26), which has an exhaust ventilator (27) subjected to low pressure and has an exhaust control butterfly valve mechanism, is attached to the air exhaust duct (24). Air exhaust control butterfly valve mechanism (28) has spring loaded control butterfly valve, which automatically opens when exceeding predetermined reference low pressure (delta P -) in air exhaust equipment. Air exhaust control butterfly valve mechanism has spring loaded control butterfly valve, which closes automatically when falling below the reference low pressure. An independent claim is also included for the method of discharging of smokes from the fire areas of the building and for the smoke free presence of escape routes of the building.