This study briefly discusses the common corrosion types of the chemical cleaning for power plant boilers

which include uniform corrosion

point corrosion

galvanic corrosion

crevice corrosion and intergranular corrosion. From the aspects of matching of cleaner and boiler material

mass fraction of corrosion inhibitor

cleaning temperature and flow velocity

the causes of the corrosion accidents about boiler chemical cleaning are analyzed. The control measures for the boiler chemical cleaning corrosion are elaborated in detail from the aspects of the formulation of the pre-chemical cleaning project and the strict control of the cleaning process during the cleaning process. This study can provide a reference for the chemical cleaning companies

the owners or the third-party supervision agencies to control the chemical cleaning quality.