CONDENSATION PURIFICATION DEVICE

PURPOSE:To provide a condensation purification device which does not require an auxiliary condensation desalting device and enables early water quality detection with a capability to operate for regeneration by forming the condensation flow path of a condensation purification system rationally. CONSTITUTION:Heaters 1, 2, condensation pumps 8, 9, 10 and a condensation desalting device 7 are connected between a nuclear reactor pressure container 11 and a condenser. At the same time, drain piping 3 is connected to the condenser 6 from a water feed heater 1. In this condensation purification device, bypass piping 19 with a bypass flow meter 20 is connected to the outlet side of the condensation desalting device 7 by installing a bypass pump 17 and a bypass adjustment valve 18 between drain piping 3 and the bypass piping 19. Further a water quality detection device 15 is installed at the outlet of the condenser 6, and an operation control device 16 is provided which controls operation of the condensation desalting device 7 for regeneration and also the operation of the bypass pump 17 and the bypass adjustment valve 18 by entering an abnormal water quality signal from the water quality detection device 15 and a flow signal from the bypass flow meter 20.