METHOD OF PREOPERATION PHYSICAL-MECHANICAL AND STEAM CLEANING AND PASSIVATION OF INNER SURFACE OF BOILER TUBES FROM SEDIMENTS

摘要

FIELD: heat-and-power engineering.SUBSTANCE: invention relates to heat engineering and can be used for preoperation cleaning the inner surface of boiler tubes of thermal power plants (TPP) from deposits and for subsequent passivation of this surface. Method of preoperational cleaning the inner surface of boiler tubes from sediments involves blowing the tubes with superheated steam with dosaged delivery of a complexing agent in it. Contrast: as the complexing agent a complex polyamine compound (CPC) is used.EFFECT: achieved technical result of the invention is creation of a single serial technology of preoperation cleaning and passivation of inner surfaces of boiler tubes from atmospheric corrosion products providing higher efficiency of the process with reduction of corrosion losses to the rated value.1 cl