Impact analysis of increasing purification flow rate of the CPR1000 unit

Junyong Li; Shuqiang Wang; Dingyi Wang; Yuzhi Lin; Xiang Gao; Zhangnan Xu; Hanbin Chen

doi:10.1117/12.3024387

13 May 2024 Impact analysis of increasing purification flow rate of the CPR1000 unit

Junyong Li, Shuqiang Wang, Dingyi Wang, Yuzhi Lin, Xiang Gao, Zhangnan Xu, Hanbin Chen

Proceedings Volume 13159, Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023); 1315999 (2024) https://doi.org/10.1117/12.3024387
Event: Eighth International Conference on Energy System, Electricity and Power (ESEP 2023), 2023, Wuhan, China

Abstract

The Chemical and Volume Control system is very important in the normal conditions and faulted conditions in CPR1000 units. During normal operation, this system is used to control the volume of the Reactor Coolant System by charging and letdown flow, and is used to control the pH and reactivity by injection chemicals. During the unit shutdown, the purification module of this system is used to purify the Coolant, which contains all kinds of radiation particles and dissolved ion that falls off from the walls of the components because of oxidation. One way to improve the efficiency of purification is to increase the flow rate. The analysis of this study shows that the increased flow rate have impacts on the components, mainly in the risk of cavitation, vibration and differential pressure. After systematic analysis to the valves, filters, demineralizers, heat exchangers and pumps, the increased flow rate almost have no influence to these components. And a systematic analysis method is supposed for other similar engineering systems.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Junyong Li, Shuqiang Wang, Dingyi Wang, Yuzhi Lin, Xiang Gao, Zhangnan Xu, and Hanbin Chen "Impact analysis of increasing purification flow rate of the CPR1000 unit", Proc. SPIE 13159, Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023), 1315999 (13 May 2024); https://doi.org/10.1117/12.3024387

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