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工程设计学报  2024, Vol. 31 Issue (1): 74-80    DOI: 10.3785/j.issn.1006-754X.2024.03.316
可靠性与保质设计     
反应堆安全壳整体泄漏率测量阶段持续时间优化研究
刘锐1(),单强2,梁招瑞3,侯秦脉1()
1.生态环境部核与辐射安全中心,北京 100082
2.中广核核电运营有限公司,广东 深圳 518000
3.辽宁红沿河核电有限公司,辽宁 大连 116000
Research on optimization of integrated leakage rate measurement stage duration for reactor containment
Rui LIU1(),Qiang SHAN2,Zhaorui LIANG3,Qinmai HOU1()
1.Nuclear and Radiation Safety Center of Ministry of Ecology and Environment, Beijing 100082, China
2.China Nuclear Power Operations Co. , Ltd. , Shenzhen 518000, China
3.Liaoning Hongyanhe Nuclear Power Co. , Ltd. , Dalian 116000, China
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摘要:

为了降低反应堆安全壳整体泄漏率测量试验风险和使泄漏率测量结果更加保守和可信,基于空气稳定准则、函数曲率准则和数据分布准则,提出了一种适用于我国核电机组的安全壳整体泄漏率测量阶段持续时间的优化方法。结合法国电力集团的安全壳整体泄漏率测量阶段持续时间调整方法,明确了安全壳整体泄漏率测量试验结束的判定要求,并提出了增加安全壳内空气稳定判定准则和整体泄漏率测量终止判定准则的优化方法。以20组安全壳打压试验样本为例,计算了安全壳整体泄漏率测量阶段的持续时间。结果表明,共有17组样本满足优化条件,其中15组样本在16 h内满足整体泄漏率测量终止判定准则,其余2组样本分别在19.25 h和18.25 h内满足全部的验收准则。所提出的优化方法能够缩短反应堆安全壳整体泄漏率测量阶段的持续时间,其比法国的方法更为保守、可信。

关键词: 安全壳整体泄漏率测量阶段持续时间优化方法    
Abstract:

In order to reduce the risk of the integrated leakage rate measurement test of reactor containment and make the leakage rate test results more conservative and reliable, an optimization method for the integrated leakage rate measurement stage duration of containment for China's nuclear power plants is proposed based on the air stability criteria, function curvature criteria and data distribution criteria. Combined with the adjustment method for the containment integrated leakage rate measurement stage duration of the French Power Group, the determination requirements for the end of integrated leakage rate measurement test for containment were clarified, and an optimization method was proposed to add the criteria for determining the stability of air inside the containment and the termination of integrated leakage rate measurement. Taking 20 groups of containment pressure test samples as examples, the integrated leakage rate measurement stage duration for containment was calculated. The results showed that 17 groups of samples met the optimization conditions, of which 15 groups of samples were able to meet the integrated leakage rate measurement termination criteria within 16 h, and 2 groups of samples met all acceptance criteria within 19.25 h and 18.25 h, respectively. The proposed optimization method can shorten the duration of the integrated leakage rate measurement stage for reactor containment, which is more conservative and reliable than the French method.

Key words: containment    integrated leakage rate    measurement stage    duration    optimization method
收稿日期: 2023-10-20 出版日期: 2024-03-04
CLC:  TH 183.1  
通讯作者: 侯秦脉     E-mail: liurui@chinansc.cn;houqinmai@chinansc.cn
作者简介: 刘 锐(1985—),女,河北沧州人,高级工程师,硕士,从事核电厂安全相关设备研究,E-mail: liurui@chinansc.cn,https://orcid.org/0009-0001-1167-4647
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引用本文:

刘锐,单强,梁招瑞,侯秦脉. 反应堆安全壳整体泄漏率测量阶段持续时间优化研究[J]. 工程设计学报, 2024, 31(1): 74-80.

Rui LIU,Qiang SHAN,Zhaorui LIANG,Qinmai HOU. Research on optimization of integrated leakage rate measurement stage duration for reactor containment[J]. Chinese Journal of Engineering Design, 2024, 31(1): 74-80.

链接本文:

https://www.zjujournals.com/gcsjxb/CN/10.3785/j.issn.1006-754X.2024.03.316        https://www.zjujournals.com/gcsjxb/CN/Y2024/V31/I1/74

国家标准整体泄漏率测量阶段持续时间
法国RCC-G (86)=24 h
美国ANSI/ANS-56.8-1994

至少4 h的安全壳内空气稳定判定时间和至少8 h的

试验终止判定时间(≥12 h)

中国NB/T 20018—2010
中国GB/T 51323—2018
表1  不同标准对安全壳整体泄漏率测量阶段持续时间的要求
图1  法国电力集团核电机组安全壳整体泄漏率试验的执行工期
图2  安全壳整体泄漏率测量阶段持续时间的优化策略

样本

序号

Fm(16 h)Fm(24 h)Fm (24 h)- UFm(24 h)Fm (24 h)+UFm(24 h)结论
1-0.040-0.039-0.046-0.033满足
2-0.040-0.037-0.047-0.026满足
3-0.048-0.045-0.054-0.036满足
4-0.044-0.031-0.045-0.017满足
5-0.005-0.027-0.042-0.011不满足
6-0.029-0.026-0.0700.017满足
??????
19-0.034-0.019-0.0420.003满足
20-0.037-0.044-0.080-0.008满足
表2  安全壳整体泄漏率测量阶段持续时间优化条件判断 (%/24h)
图3  基于空气稳定性判据1的安全壳整体泄漏率验算结果
图4  基于空气稳定性判据2的安全壳整体泄漏率验算结果

样本

序号

优化

条件

函数曲率准则数据分布准则备注
1满足满足满足
2满足不满足满足第19.25小时满足
3满足满足满足
4满足满足满足
5不满足
6满足满足满足
7满足满足满足
8满足满足满足
9不满足
10满足满足满足
11满足满足满足
12满足满足满足
13满足满足满足
14满足不满足满足第18.25小时满足
15满足满足满足
16满足满足满足
17不满足
18满足满足满足
19满足满足满足
20满足满足满足
表3  安全壳整体泄漏率测量终止判定结果
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