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发明公开
CN104282348A 一种压力容器钢无损在线寿命检测方法 无效 - 驳回

一种压力容器钢无损在线寿命检测方法
摘要：
本发明涉及一种压力容器钢无损在线寿命检测方法，它包括以下步骤：（a）测试并记录未经服役的压力容器钢的热电势系数；（b）多次测试并记录老化或服役的压力容器钢的热电势系数；（c）以压力容器钢的老化时间为横轴、热电势系数为纵轴，建立模型；（d）测试并记录使用中压力容器钢的热电势系数，并将其代入步骤（c）所述的模型中，进行演算得到压力容器钢相的老化程度。通过将压力容器钢的老化时间为横轴、热电势系数为纵轴建立模型，从而可以轻松地利用使用中压力容器钢的热电势系数计算得到其老化程度，这样能在压力容器钢任意部位直接检测，以降低运行成本提高核电站的使用率。
摘要（英）：

The invention relates to a method for detecting nondestructive on-line life of pressure vessel steel. The method comprises the following steps: (a) testing and recording a thermoelectric potential coefficient of pressure vessel steel which is not served; (b) repeatedly testing and recording a thermoelectric potential coefficient of aged or served pressure vessel steel; (c) establishing a model by taking the ageing time of the pressure vessel steel as a horizontal axis and by taking the thermoelectric potential coefficient as a vertical axis; and (d) testing and recording the thermoelectric potential coefficient of the pressure vessel steel during use, substituting the thermoelectric potential coefficient into the model obtained in the step (c), and calculating to obtain the ageing degree of the pressure vessel steel. The model is established by taking the ageing time of the pressure vessel steel as the horizontal axis and taking the thermoelectric potential coefficient as the vertical axis, so that the thermoelectric potential coefficient of the pressure vessel steel during use can be easily calculated to obtain the ageing degree. Therefore, any part of the pressure vessel steel can be directly detected, so that the operating cost is reduced, and the utilization ratio of a nuclear power plant is improved.

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