Analysis of Reactor Lower Core Support Plate Heat Treatment Distortion and Repair

Chen Miaoxin; Wu Zhiyuan

doi:10.13832/j.jnpe.2016.01.0099

Volume 37 Issue 1

Feb. 2025

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Chen Miaoxin, Wu Zhiyuan. Analysis of Reactor Lower Core Support Plate Heat Treatment Distortion and Repair[J]. Nuclear Power Engineering, 2016, 37(1): 99-102. doi: 10.13832/j.jnpe.2016.01.0099

Citation:

Chen Miaoxin, Wu Zhiyuan. Analysis of Reactor Lower Core Support Plate Heat Treatment Distortion and Repair[J]. Nuclear Power Engineering, 2016, 37(1): 99-102. doi: 10.13832/j.jnpe.2016.01.0099

Chen Miaoxin, Wu Zhiyuan. Analysis of Reactor Lower Core Support Plate Heat Treatment Distortion and Repair[J]. Nuclear Power Engineering, 2016, 37(1): 99-102. doi: 10.13832/j.jnpe.2016.01.0099

Citation:

Chen Miaoxin, Wu Zhiyuan. Analysis of Reactor Lower Core Support Plate Heat Treatment Distortion and Repair[J]. Nuclear Power Engineering, 2016, 37(1): 99-102. doi: 10.13832/j.jnpe.2016.01.0099

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Analysis of Reactor Lower Core Support Plate Heat Treatment Distortion and Repair

doi: 10.13832/j.jnpe.2016.01.0099

State Nuclear Power Engineering Company, Shanghai, 200233, China

Received Date: 2015-03-04
Rev Recd Date: 2015-10-29

Available Online: 2025-02-15

Abstract

Abstract

The flatness of the lower core support plate and the position of the fuel alignment pin holes were found deviated from the design requirements due to the heat treatment distortion during the manufacturing of the reactor vessel internals for the Haiyang Nuclear Power Plant Unit 1. The designer provided the treatment proposal and the repair plans after the cause analysis. This paper focuses on the deviations of the lower core support plate for Unit 1and describes the causes of the deviations. The repair plans and repair progress are also presented in this paper.
- AP1000,
- Reactor vessel internals,
- Lower core support plate,
- Deviation,
- Distortion