METHOD OF REMOVING DEPOSITS FORMED DURING OPERATION ON HEAT EXCHANGE SURFACES OF,IN PARTICULAR,TURBINE CONDENSER TUBES ON STEAM SIDE

摘要

A method for removal of scale deposit from heat transfer surface, in particular from turbine condenser pipes on the steam side, whereas the method consists in applying a cleaning bath on the surface to be descaled, whereas the bath includes water, a corrosion inhibitor and possibly a surface active agent, and then, after removing the cleaning bath, rinsing the system, preferably with demineralised water, characterised in that per 1 litre of the cleaning bath of a temperature up to 60 degrees C, from 1 to 10 g of sour ammonium oxalate and / or oxalic acid amide is used, from 1 to 10 g corrosion inhibitor and from 0 to 10 g of a surface active agent.