公开(公告)号：US4743423A

公开(公告)日：1988-05-10

申请号：US655953

申请日：1984-09-28

申请人： Robert L. Turner ,  Kimchinh Tran ,  Stephan L. Abbott ,  Leonard R. Golick ,  David E. Boyle ,  Theodore A. Meyer

发明人： Robert L. Turner ,  Kimchinh Tran ,  Stephan L. Abbott ,  Leonard R. Golick ,  David E. Boyle ,  Theodore A. Meyer

IPC分类号： G21C5/10 ,  G21C11/02 ,  G21C11/06 ,  G21C11/00

CPC分类号： G21C11/022 ,  Y02E30/40

摘要： A shield panel for use in a nuclear reactor including a reactor vessel susceptible to embrittlement when bombarded with high energy neutrons and a nuclear reactor core mounted within the reactor vessel, the reactor vessel having a longitudinal axis and an inner surface surrounding the longitudinal axis, and the nuclear core emitting high energy neutrons which impinge on the inner surface of the reactor vessel. The shield panel includes a canister which contains a completely enclosed interior space and which is mountable between the inner surface of the reactor vessel and the nuclear core in a region wherein the reactor vessel is susceptible to a higher rate of embrittlement than the remaining portion of the vessel when bombarded with high energy neutrons emitted from the nuclear core, and a substance consisting essentially of a heavy metal and hydrogen filling the interior space of the canister.

摘要翻译： 一种用于核反应堆的屏蔽板，包括当用高能中子轰击时易于脆化的反应器容器和安装在反应器容器内的核反应堆芯，反应器容器具有纵向轴线和围绕纵向轴线的内表面，以及 发射高能中子的核芯撞击反应堆容器的内表面。 屏蔽板包括一个罐，其包含完全封闭的内部空间，并且其可安装在反应器容器的内表面和核芯之间的区域中，其中反应容器易于比其余部分的脆化率高 当从核芯发射的高能中子轰击时，容器和基本上由填充罐的内部空间的重金属和氢组成的物质。

公开(公告)号：US08571911B1

公开(公告)日：2013-10-29

申请号：US10298157

申请日：2002-11-15

申请人： Theodore A. Meyer ,  Robert K. Perdue ,  Warren H. Bamford ,  Edward Terek ,  G. Gary Elder ,  Joel Woodcock

发明人： Theodore A. Meyer ,  Robert K. Perdue ,  Warren H. Bamford ,  Edward Terek ,  G. Gary Elder ,  Joel Woodcock

IPC分类号： G06Q10/00

CPC分类号： G06Q10/04 ,  G06Q10/06 ,  G06Q10/20 ,  G06Q50/06 ,  Y04S10/54

摘要： An improved method of selecting and planning the performance of various maintenance activities on a facility such as a nuclear power plant includes determining the net present value of a number of future net savings that are expected to result from performance of the maintenance activity at a given time, and selecting and planning the maintenance activities in a fashion that maximizes net present value. The method includes, for each of a number of components and a number of time periods, determining a change in the probability that a component will fail within a time period, with the change resulting from an assumption that a maintenance activity is performed. The change in probability is multiplied with the losses associated with a failure in order to determine a gross savings from which costs are subtracted to determine net savings. The probabilities of failure may be determined from a probability failure model that has been derived from multiple sets of failure data that are characterized by Weibull distributions and are mathematically combined according to Bayes' Theorem. The maintenance activities may also be optimized according to a number of budget figures. An apparatus for performing the method is also disclosed.

摘要翻译： 选择和规划在诸如核电厂等设施的各种维护活动的性能的改进方法包括确定预期在给定时间执行维护活动所产生的未来净节约数量的净现值 ，并以最大限度提高净现值的方式选择和规划维护活动。 该方法包括对于多个组件和多个时间段中的每一个，确定组件在一段时间内将失败的可能性的变化，并且由执行维护活动的假设引起的改变。 概率的变化与失败相关的损失相乘，以确定减去成本的总节省量，以确定净节约。 故障概率可以从已经从以威布尔分布为特征的多组故障数据派生出来的概率故障模型确定，并根据贝叶斯定理进行数学组合。 还可以根据若干预算数字优化维护活动。 还公开了一种用于执行该方法的装置。