Experimental Investigation on Measuring Leakage Rate of Nuclear Power Plant Containment by Constant Pressure Method

Li Jianfa; Hua Yongzhen; Liu Feng; Sun Zhongning; Meng Zhaoming

doi:10.13832/j.jnpe.2023.05.0175

Volume 44 Issue 5

Oct. 2023

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Li Jianfa, Hua Yongzhen, Liu Feng, Sun Zhongning, Meng Zhaoming. Experimental Investigation on Measuring Leakage Rate of Nuclear Power Plant Containment by Constant Pressure Method[J]. Nuclear Power Engineering, 2023, 44(5): 175-180. doi: 10.13832/j.jnpe.2023.05.0175

Citation:

Li Jianfa, Hua Yongzhen, Liu Feng, Sun Zhongning, Meng Zhaoming. Experimental Investigation on Measuring Leakage Rate of Nuclear Power Plant Containment by Constant Pressure Method[J]. Nuclear Power Engineering, 2023, 44(5): 175-180. doi: 10.13832/j.jnpe.2023.05.0175

Citation:

Li Jianfa, Hua Yongzhen, Liu Feng, Sun Zhongning, Meng Zhaoming. Experimental Investigation on Measuring Leakage Rate of Nuclear Power Plant Containment by Constant Pressure Method[J]. Nuclear Power Engineering, 2023, 44(5): 175-180. doi: 10.13832/j.jnpe.2023.05.0175

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Experimental Investigation on Measuring Leakage Rate of Nuclear Power Plant Containment by Constant Pressure Method

doi: 10.13832/j.jnpe.2023.05.0175

1.
China Nuclear Power Engineering Co., Ltd., Beijing, 100840, China
2.
Harbin Engineering University, Harbin, 150001, China

Received Date: 2022-10-18
Rev Recd Date: 2023-02-09
Publish Date: 2023-10-13

Abstract

Abstract

In order to further optimize the containment leakage rate measurement scheme and improve the stability and reliability of the measured value, a new leakage rate measurement method, namely the constant pressure method, was developed based on the LabVIEW code in this study. The applicability of the constant pressure method to the leakage rate measurement of the inner containment and the outer containment was confirmed for the first time by carrying out the leakage rate measurement experiment of the large-scale containment simulant. The research shows that the leakage rate measured by the constant pressure method is in good agreement with those measured by traditional pressure drop method, and the relative deviation is less than 5%. For the measurement of the leakage rate of the outer containment, compared with the pressure drop method, the constant pressure method can greatly reduce the measurement time from 10 h to less than 0.8 h on the premise of ensuring the measurement accuracy. The research conclusions can provide theoretical basis for the application of constant pressure method.
- Nuclear power plant containment,
- Leakage rate,
- Tightness test,
- Micro-negative pressure,
- Constant pressure method

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References(16)

References

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