Chinese Journal of Ship Research, Volume. 17, Issue 1, 141(2022)

Leakage rate index allocation of reactor safety vessel for floating nuclear power plants

Gang JI, Xiaoliang SU, Haidong LI, Feng XU, and Mei TAN
Author Affiliations
  • Wuhan Second Ship Design and Research Institute, Wuhan 430205, China
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    Figures & Tables(8)
    [in Chinese]
    • Table 1. Parameters of the safety vessel for leakage rate test

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      Table 1. Parameters of the safety vessel for leakage rate test

      序号参数数值
      1空气体积/m3~2 000
      2事故压力/MPa~0.7
      3事故温度/℃~160
    • Table 2. Summary of penetrators for the FNPP

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      Table 2. Summary of penetrators for the FNPP

      序号名称规格*/mm数量
       *规格数据已归一化处理
      1换料口盖11
      2检修口盖0.51
      3人员闸门0.21
      4电气贯穿件0.0816
      5机械贯穿件0.002 5~0.07573
    • Table 3. General parameters of leakage rate test for the safety vessel

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      Table 3. General parameters of leakage rate test for the safety vessel

      参数数值
      试验压力Pe/ MPa~0.7
      安全壳容积V/m3~2 000
      事故工况下安全壳最大泄漏率Fa/(%·24 h−10.3
      试验工况下安全壳最大泄漏率La/(%·24 h−10.213
      试验工况下安全壳实际允许泄漏率La0/(%·24 h−10.159
      试验工况下安全壳允许泄漏空气标准体积△V0/(Nm3·h−10.785
    • Table 4. Distribution of local leakage rate indices of FNPP

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      Table 4. Distribution of local leakage rate indices of FNPP

      试验类型部件La0的分配值之比
      比例/%绝对值/(Nm3·h−1
      B类换料口盖50.039 28
      检修口盖2.50.019 64
      耐压屏蔽圆门1.50.011 78
      电气贯穿件10.007 86
      C类隔离阀500.392 80
    • Table 5. Calculated leakage rate and calculation-distribution ratio of penetrators

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      Table 5. Calculated leakage rate and calculation-distribution ratio of penetrators

      名称分配泄漏率/(Nm3·h−1计算泄漏率/(Nm3·h−1计算值与分配值之比/%
      换料口盖0.039 280.012 5631.98
      设备检修口盖0.019 640.006 2831.98
      耐压屏蔽圆门0.011 780.002 5121.30
      电气贯穿件0.007 860.000 577.26
      合计0.078 560.021 9227.9
    • Table 6. Calculated leakage rate and calculation-distribution ratio for the islation valve

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      Table 6. Calculated leakage rate and calculation-distribution ratio for the islation valve

      名称分配泄漏率/(Nm3·h−1计算泄漏率/(Nm3·h−1计算值与分配值之比/%
      一般管道0.392 800.166 9174.50
      进、排风管0.392 800.053 8874.50
      主蒸汽管0.392 800.047 8974.50
      主给水管0.392 800.023 9574.50
    • Table 7. Comparison of overall parameters between land-based plant and FNPP

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      Table 7. Comparison of overall parameters between land-based plant and FNPP

      参数秦山核电厂浮动核电站
      安全壳容积/m3~50 000~2 000
      试验压力/MPa~0.37~0.7
      安全壳最大允许泄漏率La/(%·24 h−10.220.213
      安全壳实际允许泄漏率La0/(%·24 h−10.1650.15
      安全壳允许泄漏空气标准体积V0/(Nm3·h−114.20.785
      分配泄漏率B类10%La010%La0
      C类50%La050%La0
      计算值与分配泄漏率之比/%B类74.7927.90
      C类9.5374.50
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    Gang JI, Xiaoliang SU, Haidong LI, Feng XU, Mei TAN. Leakage rate index allocation of reactor safety vessel for floating nuclear power plants[J]. Chinese Journal of Ship Research, 2022, 17(1): 141

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    Paper Information

    Category: Ship Structure and Fittings

    Received: Nov. 19, 2020

    Accepted: --

    Published Online: Mar. 24, 2025

    The Author Email:

    DOI:10.19693/j.issn.1673-3185.02194

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