FIELD: nuclear power engineering.
SUBSTANCE: invention relates to a ventilation system for a nuclear plant and a method for its operation. Ventilation system (2) includes ventilation line (28) leading from the inside of protective shell (8) to the outside, into which wet scrubber (12) of ventilation flow (10) is included. In wet scrubber (12) there is reservoir (26) filled with washing liquid (18), above which, there is gas space (48). Ventilation line (28) includes inlet line (14) for ventilation flow (10) leading to wet scrubber (12), which branches into several exhaust nozzles (38) in distributor (34). Exhaust nozzles (38) are at least partially immersed in washing liquid (18) of reservoir (26). There is at least one separate outlet (56) that allows redistributing ventilation flows, which is connected through outlet line (54, 90) to inlet line (14) or to distributor (34) and is thermally isolated from washing liquid (18) in reservoir (26).
EFFECT: possibility, with insignificant hardware and technological costs, to reliably exclude the presence of critical concentrations of flammable gas mixtures in all modes.
20 cl, 8 dwg
