Ultrasonic Inspection Process Design for CRDM Pressure Housing Weld in Nuclear Power Plant

Tang Jianbang; Yu Zhe; Wang Weiqiang; Sun Jiawei; Lyu Tianming

doi:10.13832/j.jnpe.2022.02.0254

Volume 43 Issue 2

Apr. 2022

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Tang Jianbang, Yu Zhe, Wang Weiqiang, Sun Jiawei, Lyu Tianming. Ultrasonic Inspection Process Design for CRDM Pressure Housing Weld in Nuclear Power Plant[J]. Nuclear Power Engineering, 2022, 43(2): 254-258. doi: 10.13832/j.jnpe.2022.02.0254

Citation:

Tang Jianbang, Yu Zhe, Wang Weiqiang, Sun Jiawei, Lyu Tianming. Ultrasonic Inspection Process Design for CRDM Pressure Housing Weld in Nuclear Power Plant[J]. Nuclear Power Engineering, 2022, 43(2): 254-258. doi: 10.13832/j.jnpe.2022.02.0254

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Ultrasonic Inspection Process Design for CRDM Pressure Housing Weld in Nuclear Power Plant

doi: 10.13832/j.jnpe.2022.02.0254

CGN Inspection Technology Co., Ltd., Suzhou, Jiangsu, 215026 , China

Received Date: 2021-01-06
Accepted Date: 2021-01-06
Rev Recd Date: 2021-08-19
Publish Date: 2022-04-02

Abstract

Abstract

The pressure housing of the control rod drive mechanism (CRDM) belongs to the main circuit of the nuclear power plant, and its joint weld is the weak link of the pressure boundary of the whole radioactive circuit. Its safety and reliability directly affect the safe operation state of the reactor. In view of its narrow space, thin wall thickness and poor accessibility, a special flat bicrystal focused ultrasonic probe and inspection process are designed by using simulation technology. The test results meet the requirements of the regulations. The supervision difficulties of in-service inspection of nuclear power plant are solved, and the process design and verification method of similar weld inspection of class I components of main circuit of nuclear power plant are obtained.
- CRDM,
- Ultrasonic inspection,
- Probe design

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References(8)

References

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