REMOVAL OF SCALE-CORROSION

摘要

FIELD: process engineering.;SUBSTANCE: invention relates to cleaning the heat exchanger surfaces of scale and corrosion. This process involves application of ascorbic acid, complexing agent, water and, possibly, auxiliary additives to be forced or pouted via heat exchanging hardware. Cleaning composition is fed from expansion tank of cavitation-thermal generator. The latter allows a hydrodynamic heating of cleaning fluid to 70-130°C and swirling of liquid by hydrodynamic cavitation. Note here that before application of said composition heat exchange hardware is filled with water to be heated by cavitation-thermal generator to 50-70°C.;EFFECT: higher power and process efficiency, decreased consumption of cleaning composition, non-polluting process.;3 cl, 6 tbl, 1 ex