Improvement of secondary water chemistry in qinshan nuclear power plant
Description
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 updating 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. (authors)
Additional details
Publishing Information
- Journal Title
- Engineering Sciences
- Journal Volume
- 5
- Journal Issue
- 4
- Journal Page Range
- p. 128-134
- ISSN
- 1672-4178
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 42057145
- Subject category
- S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Descriptors DEI
- COEFFICIENT OF PERFORMANCE; IMPLEMENTATION; MODIFICATIONS; NUCLEAR POWER PLANTS; OPTIMIZATION; OUTAGES; PWR TYPE REACTORS; QINSHAN-2-1 REACTOR; QINSHAN-3-1 REACTOR; QINSHAN-3-2 REACTOR; QUALITY CONTROL; SECONDARY COOLANT CIRCUITS; SERVICE LIFE; STEAM GENERATORS; TUBES; WANO; WATER CHEMISTRY; WATER QUALITY
- Descriptors DEC
- BOILERS; CANDU TYPE REACTORS; CHEMISTRY; CONTROL; COOLING SYSTEMS; ENERGY SYSTEMS; ENRICHED URANIUM REACTORS; ENVIRONMENTAL QUALITY; HEAVY WATER MODERATED REACTORS; INTERNATIONAL ORGANIZATIONS; LIFETIME; NUCLEAR FACILITIES; POWER PLANTS; POWER REACTORS; PRESSURE TUBE REACTORS; PWR TYPE REACTORS; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; REACTORS; THERMAL POWER PLANTS; THERMAL REACTORS; VAPOR GENERATORS; WATER COOLED REACTORS; WATER MODERATED REACTORS
Optional Information
- Notes
- 6 figs., 4 fabs., 2 refs.