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[en] The sludge induced corrosion damage to secondary side of tubes of Steam Generator (SG), effect of chemical cleaning technique on maintenance integrity of tubes of SG NPP and use of chemical cleaning technique in SG NPP have been summarized. The engineering technique of chemical cleaning for removing sludge in secondary side of SG NPP has been studied and qualified by CIAE (China Institute of Atomic Energy). Chemical cleaning engineering technique is introduced (main agent is EDTA, temp. <100 degree C), including chemical cleaning technology for tube plate and full tube nest of secondary side of SG, the monitoring technique of chemical cleaning process (effectiveness and safety), the disposal method of wastage of chemical cleaning, the system of chemical cleaning. The method for preventing sludge deposition in secondary side and the research on advanced water chemistry of secondary loop are introduced
Source
China Nuclear Science and Technology Report; v. 1(4); 2002; 14 p; IAE--0206; ISSN 1671-7430; 
; Data (CD) in PDF format: Acrobat Reader for Windows 9x; This article is located on p. 107-120; 4 figs., 2 refs.
; Data (CD) in PDF format: Acrobat Reader for Windows 9x; This article is located on p. 107-120; 4 figs., 2 refs.