On-line removal of copper deposits on steam turbine blades

This invention relates to an on-line process for removing copper deposits from the blades of the rotor of a steam turbine in systems, particularly condensing steam turbines. The process comprises adding an oxime to an appropriate injection point of an electric generating power plant powered by a ste...

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Bibliographische Detailangaben
Hauptverfasser:	PIKE THOMAS H, LANGE, JR. EMERY N
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHINBOILERS BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL CONTROLLING WATER LEVEL DIFFUSION TREATMENT OF METALLIC MATERIAL ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES FEED-WATER SUPPLY HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING 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 NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER STEAM ACCUMULATORS STEAM ENGINE PLANTS STEAM ENGINES STEAM GENERATION WEAPONS
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Beschreibung
Zusammenfassung:	This invention relates to an on-line process for removing copper deposits from the blades of the rotor of a steam turbine in systems, particularly condensing steam turbines. The process comprises adding an oxime to an appropriate injection point of an electric generating power plant powered by a steam turbine, where the power plant comprises a pre-boiler system, a steam generator, a steam turbine, a condenser and an electric generator.