Abstract—

The paper presents the results of acceptance and pilot tests developed by the authors of the PIRATE program designed for automatic analysis of eddy current signals during routine monitoring of the metal state of the heat-exchange tubes in steam generators of nuclear power plants with VVER-440 and VVER-1000 reactor plants. As a result of “blind” acceptance tests using certified standard equipment, the detection of realistic defects on specially prepared tube samples with four gradations of the characteristic size (defect depth) and the reliability of the eddy current testing results with a different level of rejection criterion were determined. The obtained values of detectability and depth of defects satisfy the regulatory documents’ requirements. According to the results of acceptance tests, it is possible to use the PIRATE program at nuclear facilities. The purpose of the pilot tests was to compare the results of operational testing obtained during scheduled preventive repairs by regular systems along with the conclusions of experienced expert analysts to the results of the analysis of the same signals by the PIRATE program in automatic mode. Pilot tests were carried out using data from operational monitoring of steam generators for nuclear power plants with both VVER-440 reactors and VVER-1000 reactors. Findings of defects with varying depths also meet the requirements of industry guidance documents. Based on analyzing the criteria for coincidence of the testing data of the heat-exchange tubes generated by the PIRATE program in automatic mode and a regular system, a conclusion was made about the readiness of the program for industrial operation. In addition, it has been shown that the PIRATE program is no less the foreign programs used at domestic nuclear power plants in some functional capabilities.

中文翻译：

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PIRATE程序的运行前测试，该程序用于识别和评估核电站蒸汽发生器的换热器中的缺陷深度

摘要—

本文介绍了PIRATE程序作者开发的验收和先导测试的结果，该程序旨在对VVER-440核电站蒸汽发生器中换热管的金属状态进行常规监测期间对涡流信号进行自动分析。和VVER-1000反应堆工厂。使用经过认证的标准设备进行的“盲”验收测试的结果是，可以对特制试管样品上的实际缺陷进行检测，这些样品具有特征尺寸（缺陷深度）的四个等级，并且在不同剔除水平下涡流测试结果的可靠性确定标准。获得的可检测性和缺陷深度值满足法规文件的要求。根据验收结果 可以在核设施上使用PIRATE程序。试点测试的目的是将定期系统在定期预防性维修期间获得的操作测试结果与经验丰富的专家分析人员的结论与PIRATE程序在自动模式下对相同信号的分析结果进行比较。使用具有VVER-440反应堆和VVER-1000反应堆的核电站蒸汽发生器的运行监控数据，进行了试点测试。发现深度不同的缺陷也符合行业指导文件的要求。通过分析PIRATE程序在自动模式和常规系统下生成的热交换管的测试数据的一致性标准，对工业操作程序的就绪性做出了结论。此外，已经证明，PIRATE计划在某些功能上不亚于在国内核电厂使用的国外计划。