Design and Optimization of Electromagnetic Ultrasonic Longitudinal Guided Wave Transducer for Heat Exchange Tube of Stream Generator

Wang Libo; Fang Zhihong; Wang Fangfang; Wang Fei; Han Zhixiong; Zhu Yi; Zhao Yajun

doi:10.13832/j.jnpe.2023.01.0192

Volume 44 Issue 1

Feb. 2023

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Article Navigation > Nuclear Power Engineering > 2023 > 44(1): 192-197

Wang Libo, Fang Zhihong, Wang Fangfang, Wang Fei, Han Zhixiong, Zhu Yi, Zhao Yajun. Design and Optimization of Electromagnetic Ultrasonic Longitudinal Guided Wave Transducer for Heat Exchange Tube of Stream Generator[J]. Nuclear Power Engineering, 2023, 44(1): 192-197. doi: 10.13832/j.jnpe.2023.01.0192

Citation:

Wang Libo, Fang Zhihong, Wang Fangfang, Wang Fei, Han Zhixiong, Zhu Yi, Zhao Yajun. Design and Optimization of Electromagnetic Ultrasonic Longitudinal Guided Wave Transducer for Heat Exchange Tube of Stream Generator[J]. Nuclear Power Engineering, 2023, 44(1): 192-197. doi: 10.13832/j.jnpe.2023.01.0192

Citation:

Wang Libo, Fang Zhihong, Wang Fangfang, Wang Fei, Han Zhixiong, Zhu Yi, Zhao Yajun. Design and Optimization of Electromagnetic Ultrasonic Longitudinal Guided Wave Transducer for Heat Exchange Tube of Stream Generator[J]. Nuclear Power Engineering, 2023, 44(1): 192-197. doi: 10.13832/j.jnpe.2023.01.0192

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Design and Optimization of Electromagnetic Ultrasonic Longitudinal Guided Wave Transducer for Heat Exchange Tube of Stream Generator

doi: 10.13832/j.jnpe.2023.01.0192

1.
Xi’an Thermal Power Research Institute Co., Ltd., Xi’an, 710054, China
2.
Wuhan Zhongke Innovation Technology Co., Ltd., Wuhan, 430075, China

Received Date: 2022-01-21
Rev Recd Date: 2022-10-19
Publish Date: 2023-02-15

Abstract

Abstract

The special spiral structure of the heat exchange tube of the steam generator of the high-temperature gas-cooled reactor makes it difficult for the traditional external electromagnetic ultrasonic guided wave transducer to be effectively detected. Aiming at the defect detection of stainless steel heat exchange tube of stream generator, a new built-in electromagnetic ultrasonic longitudinal guided wave transducer is developed, a finite element multi physical field coupling model is established, the static magnetic field distribution of ferromagnetic structure of the transducer is studied, and the longitudinal guided wave excited by the transducer is simulated in time domain. The results show that: the use of the squeezed magnetization transducer structure can ensure that the vertical magnetic field near the coil is much larger than the horizontal magnetic field, and can efficiently excite a single mode of longitudinal guided waves inside the tube. The optimized probe can detect through-hole defects with a diameter of 5mm and circular groove defects with a length × width × depth of 20 mm×1.5 mm×1.2 mm. Therefore, the new electromagnetic ultrasonic longitudinal guided wave transducer can effectively excite the longitudinal guided wave, and is expected to be applied to the in-service defect detection of the heat exchange tube of the steam generator of the high-temperature gas-cooled reactor.
- High-temperature gas-cooled reactor,
- Heat exchange tube,
- Longitudinal guided wave,
- Electromagnetic ultrasonic transducer,
- Defect detection

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References(20)

References

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