2008, Volume 10, Issue 1
Strategic Study of CAE >> 2008, Volume 10, Issue 1
Improvement of Secondary Water Chemistry in Qinshan Nuclear Power Plant
Qinshan Nuclear Power Company, Haiyan, Zhejiang 314300, China
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Abstract
The water quality control in PWR secondary system has close relationship with the service life of key important components, such as SG. With the improvement of water chemistry management of secondary system in Qinshan nuclear power plant（QNPP）, the water quality of secondary system becomes better and better. These improvements include renewal of management concept, adoption of high AVT of secondary system, optimized operation of condensate polisher and strictly chemical control during outage and startup period. With the implementation of these measurements, the WANO chemistry performance index improved from 1.66 in 1997 to 1.00 in 2006, reaching the advanced level of the world. The improvement of secondary water chemistry ensures the integrity of SG tubes in QNPP.
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References
[ 1 ] Kadoi Eiichi. First Trial of High AVT Chemistry for PWR Secondary Water Chemistry in Japan[M]. The Japan Atomic Power Company, 2002
[ 2 ] 林芳良. 压水堆化学[M]. 北京：原子能工业出版社, 1984
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