VIRTUALIZATION OF THE WORKPLACE OF THE OPERATOR OF THE STEAM GENERATOR OF THE CHP-1 KOTLAS PULP AND PAPER MILL

An approach to the implementation of the structure of a computer simulator for steam generator drivers BKZ-160-100F using virtualized workstations and control systems is de-scribed

Section 5. Tables of Suggested Water Chemistry Targets

Consensus water chemistry controls for the six types of steam generator systems are presented in Tables 1 through 7. The tabulated information is categorized according to operating pressure ranges because this is the prime factor that dictates the type of internal water chemistry employed, the normal cycles of feedwater concentration, the silica volatility, and the carryover tendency. The difference between steam and water densities decreases with increasing pressure and temperature; therefore, separating the steam/water phases completely in the boiler drum becomes increasingly difficult to achieve. Since the tendency to carryover is greater at higher operating pressures, it is necessary to maintain lower boiler water contaminant concentrations to meet the same steam purity target.