FIELD: metallurgy.
SUBSTANCE: corrosion protection method of a boiler plant involves stages at which: film is formed with composition M1FeO3 (M1: three-valence or four-valence metal) or M2Fe2O4 (M2: two-valence metal) on surface of inner wall of the boiler plant arrangement, which has been chose at least from feed water heater, degasser and steam generator; amount of added oxygen to the above device is controlled in compliance with temperature in the plant for maintaining the film in a stable state.
EFFECT: increasing corrosion protection efficiency of the boiler plant by controlling the amount of dissolved oxygen.
9 cl, 4 dwg
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