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首页> 外文会议>International conference on structural mechanics in reactor technology >DEVELOPMENT OF SIMPLIFIED PROCEDURE FOR SEISMIC QUALIFICATION OF PIPING SYSTEM CONNECTING THE GLOVE BOXES OF NUCLEAR FUEL FABRICATION FACILITIES
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DEVELOPMENT OF SIMPLIFIED PROCEDURE FOR SEISMIC QUALIFICATION OF PIPING SYSTEM CONNECTING THE GLOVE BOXES OF NUCLEAR FUEL FABRICATION FACILITIES

机译：一种连接核燃料制造设施手套箱的管道系统地震资质简化程序的开发

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摘要

Seismic safety is of utmost importance for nuclear fuel fabrication facilities of Department of Atomic Energy. Piping systems, in nuclear fuel fabrication system, is used to maintain the negative pressure inside the glove boxes. Failure of piping system in earthquake scenario may result in radioactivity leakage and contamination at working area. Seismic qualification of piping system connecting the glove boxes is very essential for safe and reliable operation of nuclear fuel fabrication facilities. The work described in this paper is focused on ensuring the seismic safety of the piping systems connected with the glove boxes. The glove box exhausts are connected to exhaust header points. In this arrangement, the boxes nearer to the header points are having shorter lengths comparing to those which are farther from the exhaust point. The arrangement indicates the transition between rigid to flexible systems. The behavior of these rigid and flexible systems under seismic loading will be quite different and the difference will vary to the extent of parametrical variations in the systems. Thus, to take care of different configurations of exhaust lines, ideally it requires qualification of a variety of layouts individually. This paper deals with the development of alternative simplified procedure based on parametrical study of the behavior of the systems. With the help of evolved simplified procedure, paper demonstrates that it could be made possible to qualify these systems with the help of few representative layouts thus, restricting the requirement of detailed analysis to a few layouts. The evolved procedure and its utility have been demonstrated with the help of three case studies described in this paper.
机译：地震安全对原子能部的核燃料制造设施至关重要。管道系统，在核燃料制造系统中，用于在手套箱内保持负压。地震场景中的管道系统失败可能导致在工作区域的放射性泄漏和污染。连接手套箱的管道系统的地震鉴定对于核燃料制造设施的安全可靠运行非常重要。本文描述的工作主要集中在确保与手套箱连接的管道系统的地震安全性。手套箱排气连接到排气头点。在这种布置中，靠近报头点的盒子具有较短的长度，比较与远离排气点更远的长度。该布置表示刚性到柔性系统之间的过渡。这些刚性和柔性系统在地震负载下的行为将是完全不同的，并且差异将不同于系统参数变化的程度。因此，为了处理排气管路的不同配置，理想情况下，它需要单独需要各种布局的资格。本文涉及基于对系统行为的参数研究的替代简化程序的开发。借助于简化的简化程序，纸张表明，可以在很少的代表布局的帮助下使这些系统有资格，因此限制了详细分析对几个布局的要求。在本文中描述的三种案例研究的帮助下，已经证明了进化的程序及其效用。

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