Research on Phased Array Ultrasonic Inspection Technology for the Pressurizer Surge Nozzle to Vessel Weld

Luo Liqun; Zhu Jiazhen; Chen Jun; Kang Zhiping

doi:10.13832/j.jnpe.2024.05.0232

Volume 45 Issue 5

Oct. 2024

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Article Navigation > Nuclear Power Engineering > 2024 > 45(5): 232-236

Luo Liqun, Zhu Jiazhen, Chen Jun, Kang Zhiping. Research on Phased Array Ultrasonic Inspection Technology for the Pressurizer Surge Nozzle to Vessel Weld[J]. Nuclear Power Engineering, 2024, 45(5): 232-236. doi: 10.13832/j.jnpe.2024.05.0232

Citation:

Luo Liqun, Zhu Jiazhen, Chen Jun, Kang Zhiping. Research on Phased Array Ultrasonic Inspection Technology for the Pressurizer Surge Nozzle to Vessel Weld[J]. Nuclear Power Engineering, 2024, 45(5): 232-236. doi: 10.13832/j.jnpe.2024.05.0232

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Research on Phased Array Ultrasonic Inspection Technology for the Pressurizer Surge Nozzle to Vessel Weld

doi: 10.13832/j.jnpe.2024.05.0232

Luo Liqun^1
,,
Zhu Jiazhen^{2, 3},
Chen Jun¹,
Kang Zhiping^{2, 3}

1.
DayaBay Nuclear Power Operations and Management Co., Ltd., Shenzhen, Guangdong, 518000, China
2.
CGNPC Inspection Technology Co., Ltd., Suzhou, Jiangsu, 215004, China
3.
National Engineering Research Center for Nuclear Power Plant Safety & Reliability, Suzhou, Jiangsu, 215004, China

Received Date: 2023-11-09
Rev Recd Date: 2024-06-11
Publish Date: 2024-10-14

Abstract

Abstract

In response to the single-sided accessibility issue caused by the weld structure and the significant positioning deviation caused by spherical detection surface in the surge nozzle to vessel weld of pressurizer in nuclear power plant, a phased array ultrasonic inspection (PAUT) technology and a defect positioning correction algorithm are developed, which are verified in a simulated body with natural defects and compared with the results of radiographic inspection. The results show that, combined with the defect positioning correction algorithm, the PAUT technology meets the requirements of the performance demonstration, and the detection capability is equivalent to that of radiographic inspection.
- Surge nozzle to vessel weld,
- Spherical detection surface,
- Positioning correction,
- Phased array ultrasonic testing (PAUT)

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References(6)

References

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