Condensate Purification of the Water/Steam Cycle in in Nuclear Power Plants with Pressurized Water Reactors.

In nuclear power plants with pressurized water reactors turbine condensate purification is not required if provision is made in the steam generators for blow-off. If, however, a steam generator operating according to the once-through principle is employed, condensate purification is essential, since the separation of water and steam occurs in this case inside a pipe, so that there is no possibility of blow-off. The use of the so-called Ammonex method for condensate treatment is recommended, since the cation exchangers in this case can continue functioning even when loaded with ammonia, which prolongs their lifetimes and leads to less frequent regeneration.