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首页> 外文期刊>Thermal engineering >Methodology and Measures for Preventing Unacceptable Flow-Accelerated Corrosion Thinning of Pipelines and Equipment of NPP Power Generating Units
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Methodology and Measures for Preventing Unacceptable Flow-Accelerated Corrosion Thinning of Pipelines and Equipment of NPP Power Generating Units

机译：防止NPP发电机组管道和设备流动加速腐蚀变薄的方法和措施

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摘要

Problems of metal flow-accelerated corrosion (FAC) in the pipelines and equipment of the condensate-feeding and wet-steam paths of NPP power-generating units (PGU) are examined. Goals, objectives, and main principles of the methodology for the implementation of an integrated program of AO Concern Rosener-goatom for the prevention of unacceptable FAC thinning and for increasing operational flow-accelerated corrosion resistance of NPP EaP are worded (further the Program). A role is determined and potentialities are shown for the use of Russian software packages in the evaluation and prediction of FAC rate upon solving practical problems for the timely detection of unacceptable FAC thinning in the elements of pipelines and equipment (EaP) of the secondary circuit of NPP PGU. Information is given concerning the structure, properties, and functions of the software systems for plant personnel support in the monitoring and planning of the inservice inspection of FAC thinning elements of pipelines and equipment of the secondary circuit of NPP PGUs, which are created and implemented at some Russian NPPs equipped with VVER-1000, VVER-440, and BN-600 reactors. It is noted that one of the most important practical results of software packages for supporting NPP personnel concerning the issue of flow-accelerated corrosion consists in revealing elements under a hazard of intense local FAC thinning. Examples are given for successful practice at some Russian NPP concerning the use of software systems for supporting the personnel in early detection of secondary-circuit pipeline elements with FAC thinning close to an unacceptable level. Intermediate results of working on the Program are presented and new tasks set in 2012 as a part of the updated program are denoted. The prospects of the developed methods and tools in the scope of the Program measures at the stages of design and construction of NPP PGU are discussed. The main directions of the work on solving the problems of flow-accelerated corrosion of pipelines and equipment in Russian NPP PGU are defined.
机译：研究了NPP发电装置（PGU）的凝结水进料和湿蒸汽路径的管道和设备中的金属流动加速腐蚀（FAC）问题。阐述了实施AO关注的Rosener-goatom一体化计划的目标，目的和主要原理，该计划旨在防止不可接受的FAC变薄并提高NPP EaP的运行促进流动的耐蚀性（该计划）。在解决实际问题以及时检测管道二次回路的管道和设备（EaP）中不可接受的FAC变薄的实际问题后，确定作用并显示出使用俄罗斯软件包评估和预测FAC率的潜力。 NPP PGU。提供了有关工厂人员支持的软件系统的结构，属性和功能的信息，这些软件系统用于监视和规划NPP PGU的二次回路的管道和设备的FAC稀疏元件的运行中检查，并在以下位置创建和实施一些配备VVER-1000，VVER-440和BN-600反应堆的俄罗斯核电厂。应当指出的是，关于流加速腐蚀问题，用于支持NPP人员的软件包的最重要的实际成果之一是，暴露出处于局部局部FAC剧烈变薄的危险中的元素。列举了一些俄罗斯核电厂成功实施的案例，涉及使用软件系统支持人员在FAC变薄接近无法接受的水平的情况下及早发现二次回路管道元件。介绍了该计划的中间结果，并指出了2012年设定的新任务，作为更新计划的一部分。讨论了在NPP PGU设计和建造阶段，在计划措施范围内开发的方法和工具的前景。确定了俄罗斯NPP PGU解决管道和设备流动加速腐蚀问题的主要方向。

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