Dukovany NPP – Control Valves Installation in NTO4, NTO5 External Steam Systems
KRÁLOVOPOLSKÁ RIA, a.s. prepared the documentation and consequently executed the ”Control valves installation in external steam lines to the low pressure heaters (NTO4 and NTO5)” Project for the Dukovany nuclear power plant. This Project was executed in the form of the general delivery of machines and equipment, including all the necessary modifications of the equipment concerned, structures and systems, external steam lines of the low pressure heaters (NTO) 4 and 5.
The objective of this Project was to improve the existing complicated turbine condensate heating control system downstream, the low pressure heaters NTO4 and NTO5 in the course of turbine (TG) startup in the modes of idle run, run for TG´s own consumption and run with TG capacity step change. The installation will eliminate the generation of thermal and pressure shocks and increase the equipment lifetime.