FIELD: power industry.
SUBSTANCE: invention can be used in depressurization systems from protective cover at accident beyond the design basis with full loss of power at NPS to prevent radioactive contamination of the environment. Cleaning device of emergency discharge of radioactive steam-gas mixture of NPS protective cover includes ejector, heat exchangers, sorption module and ventilation duct. Ejector is installed between electric fan and ventilation duct. At that, ejecting gas nozzle is connected to gas holder or other capacity with compressed gas or air, and outlet nozzle is connected to ventilation duct. Ejecting gas nozzle is connected to the outlet of electric fan the inlet of which is connected to branching: one branch is connected to active filtration system of radioactive steam-gas mixture from NPS protective cover, and the other one - to sorption module.
EFFECT: invention is aimed at maintaining the negative pressure in protective cover even at full loss of power at NPS irrespective of parametres of evacuated radioactive steam-gas medium, and technical characteristics of the cleaning system.
1 cl, 1 dwg
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