RESEARCH ON INFLUENCE OF PRESSURIZATION RATE ON STABILITY OF AIR IN CONTAINMENT

YANG Xinguang; SONG Xiang; DAN Qiang; JIA Yu; XU Haixiang; GUO Hongxiao

doi:10.13204/j.gyjzG21102020

Volume 51 Issue 12

May 2022

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2021 > 51(12): 68-73

SHEN Tong, XU Haixiang, YANG Xinguang, SONG Zhengfeng, LIU Kai, ZHAO He, ZHANG Haiming. DISPLACEMENT ANALYSIS FOR STRUCTURAL INTEGRITY TEST OF CONTAINMENT OF HPR1000 NUCLEAR POWER PLANT[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(12): 1-6. doi: 10.13204/j.gyjzG21120605

Citation:

YANG Xinguang, SONG Xiang, DAN Qiang, JIA Yu, XU Haixiang, GUO Hongxiao. RESEARCH ON INFLUENCE OF PRESSURIZATION RATE ON STABILITY OF AIR IN CONTAINMENT[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(12): 68-73. doi: 10.13204/j.gyjzG21102020

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RESEARCH ON INFLUENCE OF PRESSURIZATION RATE ON STABILITY OF AIR IN CONTAINMENT

doi: 10.13204/j.gyjzG21102020

1. Central Research Institute of Building and Construction Co., Ltd., MCC Group, Beijing 100088, China;
2. Inspection and Certification Co., Ltd., MCC Group, Beijing 100088, China;
3. China Nuclear Power Operations Co., Ltd., Shenzhen 518000, China

Received Date: 2021-10-20
Available Online: 2022-05-27

Abstract

Abstract

The pressurization test of containment, which has the characteristics of high risk, complex process and long holding time, is one of the most important special projects during construction and operation period. For the sake of increasing the economy capacity units and saving the maintenance time, an effective approach is to increase the pressurization rate. However, the approach is likely to cause the increase of the stability time of air in containment and the decrease of the accuracy and reliability of the containment leakage test. Therefore, it is necessary to study the influence of the increase of pressurization rate on the stability of air. Taking the M310 reactor as an example, the theory of computational fluid dynamics was adopted to simulate the whole process of the pressurization test. When the rate of pressurization was 15 kPa/h and 40 kPa/h, the variation of the internal pressure, velocity and temperature of the containment was analyzed, and the influence of the pressurization rate on the stability of air in containment was investigated. It was shown by the results that if the rate of pressurization was raised to 40 kPa/h, the internal air of the containment was stable after reaching the test pressure for 4 h.
- containment,
- pressurization rate,
- stability of air,
- computational fluid dynamics

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