Patent ID: 6098573
Filing Date: 2000-08-08
Classification: C11D,F22B,F28G

Abstract:
A method of cleaning a boiler of a power generation plant for cleaning the boiler by removing an oil component adhering and remaining to an interior surface of the boiler at the time of after manufacturing the same and before starting a steady operation of the power generation plant, said method comprising the steps of:preparing a surface active agent as a cleaning liquid having a predetermined concentration;temporarily locating a cleaning liquid tank, into which the cleaning liquid is stored, and a cleaning liquid injection pipe connecting the cleaning liquid tank and a boiler feed water pipe for feeding water to the boiler through a cleaning liquid injection pump;supplying the cleaning liquid into the boiler feed water pipe from the cleaning liquid tank in a controlled manner to supply the cleaning liquid into the boiler at a timing of a no-load operation of the power generation plant; andcleaning the boiler with a boiler water after the no-load operation period and before 100% load operation.