公开(公告)号：US20160141057A1

公开(公告)日：2016-05-19

申请号：US14940792

申请日：2015-11-13

申请人： AREVA Inc.

发明人： Charles A. Graves ,  David E. Waskey ,  Andrew C. Smith ,  Kenneth B. Stuckey

IPC分类号： G21C17/017 ,  G21C1/08

CPC分类号： G21C17/017 ,  B23P6/00 ,  B23P6/007 ,  B23P6/04 ,  B23P15/008 ,  G21C13/036 ,  G21C19/207 ,  G21Y2004/40 ,  G21Y2004/50 ,  Y02E30/40 ,  Y10T29/4973 ,  Y10T29/49732

摘要： The invention is an innovative design/repair methodology for PWR piping nozzles and vessel nozzles that are attached to the piping/vessel base material with a full penetration weld joint geometry. The development of a robust repair methodology for nozzles of this configuration is necessary due to plant aging, potential material degradation in the original materials of construction, potential increased nondestructive examination requirements, and PWSCC phenomena in the susceptible original materials of construction. The purpose/objective of the repair methodology is to provide a means of partially replacing the existing pressure boundary susceptible materials with PWSCC-resistant materials to facilitate the long-term repair life of the plant. The invention may be applied to a plurality of nozzle, piping, and vessel sizes with a full penetration weld joint.

摘要翻译： 本发明是一种用于PWR管道喷嘴和容器喷嘴的创新设计/修复方法，其连接到具有完全穿透焊接接头几何形状的管道/容器基底材料。 由于植物老化，原始施工材料的潜在材料退化，潜在的无损检测要求以及易受影响的原材料施工中的PWSCC现象，因此需要开发这种配置喷嘴的强力修复方法。 维修方法的目的/目的是提供一种部分替代现有的具有PWSCC抗性材料的压力边界敏感材料，以促进植物的长期修复寿命。 本发明可以应用于具有全穿透焊接接头的多个喷嘴，管道和容器尺寸。

公开(公告)号：US09180557B1

公开(公告)日：2015-11-10

申请号：US14257134

申请日：2014-04-21

申请人： AREVA Inc.

发明人： Charles A. Graves ,  David E. Waskey

IPC分类号： B23K31/02 ,  B23P6/00

CPC分类号： B23P6/00 ,  B23K31/02 ,  B23K2101/12 ,  G21C13/036 ,  G21C17/017 ,  G21C19/207

摘要： This invention provides an improved replacement nozzle configuration. The nozzle is provided in two pieces. A first nozzle piece is a relatively thin-walled cylinder that is inserted into the counterbored opening of a pressure vessel after the protruding portion of the original nozzle has been removed. A weld pad is attached to the pressure vessel, to which the first replacement nozzle piece is welded. Due to the reduced dimensions of the thin-walled first nozzle portion, a much smaller weld pad and pad-to-nozzle weld can be used. A second nozzle piece is positioned within the first nozzle piece and welded thereto. The existing instrumentation piping is connected to the free end of the second nozzle piece. This two-piece replacement nozzle can be implemented in approximately half the time required for the one-piece design.

摘要翻译： 本发明提供了一种改进的替代喷嘴结构。 喷嘴设置成两片。 第一喷嘴片是相对薄壁的圆柱体，其在原始喷嘴的突出部分已经被移除之后被插入压力容器的沉孔中。 焊接垫连接到压力容器上，第一个更换喷嘴件被焊接在该压力容器上。 由于薄壁第一喷嘴部分的尺寸减小，可以使用更小的焊盘和焊盘与喷嘴焊接。 第二喷嘴片位于第一喷嘴片内并焊接在其上。 现有的仪表管道连接到第二喷嘴件的自由端。 这种两件式更换喷嘴可以在一体式设计所需的时间的大约一半的时间内实现。

公开(公告)号：US20150298266A1

公开(公告)日：2015-10-22

申请号：US14257134

申请日：2014-04-21

申请人： AREVA Inc.

发明人： Charles A. Graves ,  David E. Waskey

IPC分类号： B23P6/00 ,  B23K31/02

CPC分类号： B23P6/00 ,  B23K31/02 ,  B23K2101/12 ,  G21C13/036 ,  G21C17/017 ,  G21C19/207

摘要： This invention provides an improved replacement nozzle configuration. The nozzle is provided in two pieces. A first nozzle piece is a relatively thin-walled cylinder that is inserted into the counterbored opening of a pressure vessel after the protruding portion of the original nozzle has been removed. A weld pad is attached to the pressure vessel, to which the first replacement nozzle piece is welded. Due to the reduced dimensions of the thin-walled first nozzle portion, a much smaller weld pad and pad-to-nozzle weld can be used. A second nozzle piece is positioned within the first nozzle piece and welded thereto. The existing instrumentation piping is connected to the free end of the second nozzle piece. This two-piece replacement nozzle can be implemented in approximately half the time required for the one-piece design.

摘要翻译： 本发明提供了一种改进的替代喷嘴结构。 喷嘴设置成两片。 第一喷嘴片是相对薄壁的圆柱体，其在原始喷嘴的突出部分已经被移除之后被插入压力容器的沉孔中。 焊接垫连接到压力容器上，第一个更换喷嘴件被焊接到该压力容器上。 由于薄壁第一喷嘴部分的尺寸减小，可以使用更小的焊盘和焊盘与喷嘴焊接。 第二喷嘴片位于第一喷嘴片内并焊接在其上。 现有的仪表管道连接到第二喷嘴件的自由端。 这种两件式更换喷嘴可以在一体式设计所需的时间的大约一半的时间内实现。