METHOD OF PROTECTING PLANTS FROM CORROSION

• Main Authors: BALAJAN R.S, GRIGOR'EVA T.V, MIKHAJLOV V.A, VELICHKO E.V, KUKUSHKIN A.N
• Format: Patent
• Language: English
• Published: 10.03.2000
• Edition: 7
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE

FIELD: heat and power engineering, particularly, protection from corrosion of steam-water circuits of turbine plants operating by cross-connection flow diagram. SUBSTANCE: method includes introduction into power plants of steam-water mixture with film-forming aliphatic amines of R-NH2 type, where R is hydrocarbon radical with weight fraction of primary amines (C16-C18) in the amount of not less than 99%, and iodine number of not in excess of 2, and preservation for time required for sorption of amines on protected surfaces. The method provides for increase of protection from corrosion without decrease of temperature conditions that makes it possible not only combine in time of plant operation and operations for its protection from corrosion, but even protective effect due to use of higher sorption properties of plant components. EFFECT: higher efficiency. 8 cl, 2 dwg