METHOD FOR COMPLETING A CHEMICAL POWER PLANT CLEANING

摘要

The invention relates to a method for purifying at least one part of a water-vapor circuit (13, 14, 15, 16) of a power plant (1, 2), wherein the purifying solution is injected into a part to be purified , The steam for flushing during or immediately after discharge of the cleaning solution is fed into the part to be cleaned at one or more high points of the part to be cleaned and at least one low point discharge part 17 is opened or kept open in the part to be cleaned, The steam is supplied until the steam is discharged from the low point discharging portion 17 and when the low point discharging portion 17 is plural, the low point discharging portions 17 for discharging the steam are closed and the steam is discharged from all the low point discharging portions 17 And then the vapor supply portion is closed and all the low point discharge portions 17 are reopened. The present invention also relates to the use of the present invention in steam generators, gas and steam turbine installations and in particular water steam circuits of waste heat steam generators (2).