VENTILATION SYSTEM AND ASSOCIATED OPERATING METHOD FOR USE DURING A SERIOUS INCIDENT IN A NUCLEAR PLANT

摘要

Used in the operating room of a nuclear power plant in close proximity, in particular in the control room 4 of a nuclear power plant 6, to provide fresh, uncontaminated air for at least several hours in the event of a major accident involving the release of radioactive material. It is a configured exhaust system (2). In particular, the content of radioactive rare gas in the fresh air supplied to the operating room is as low as possible. To this end, the exhaust system 2 according to the present invention extends from the external inlet 14 to the operating room, and the air supply pipe 10 connected to the first fan 12 and the first rare gas adsorption column (for example 38) , An air discharge pipe 44 extending from the operating room to the external outlet 72 and connected to a second fan 46 and a second rare gas adsorption column (for example 48), and first and second rare gas adsorption columns ( 38, 48).