method of controlling the degree of corrosion of equipment in the nuclear power plant processing circuit

摘要

way of controlling the degree of corrosion of the equipment in the nuclear power plant's processing circuit according to which they measure the values of the electrochemical potential of the structural material of the heat exchange tubes (ttc) and the specific electrical conductivity of the water purged from the generators of steam, measure values of the polarization resistance of the construction material of the condensed-nutritional tract ducts and the specific electrical conductivity of the nutrient water of the steam generators, automatically calculate these parameters and compare them with the normalized values. the values of the electrochemical potential and the specific electrical conductivity of the purge water of the steam generators are displayed as dots in a two-parameter nomogram with coordinates «electrochemical potential - conductivity of the h-cationized sample» of the purge water, divided into the zones ¿, ¿, D, f which characterizes different degrees of corrosive activity in relation to the ttc material of the water purged from the steam generators according to the mode of operation. the values of the electrochemical potential and the specific electrical conductivity of the nutrient water of the steam generators are displayed as dots in a two-parameter nomogram with coordinates «polarization resistance - conductivity of the h-cationized sample» of the nutrient water, divided into zones g , y, x, z which characterizes different degrees of corrosive activity in relation to the material of the ducts of the nutrient water circuit of the steam generators according to the mode of operation. depending on the location of the point in one of the two parameter nomogram zones, no action is taken or regulation of the refrigerant parameters or stop of the power unit.