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公开(公告)号：US5740218A
公开(公告)日：1998-04-14
申请号：US621879
申请日：1996-03-26
申请人： Christian D. Frederickson , Robert B. Elkins , Edward A. Croteau , Harold B. King , David G. Smith
发明人： Christian D. Frederickson , Robert B. Elkins , Edward A. Croteau , Harold B. King , David G. Smith
摘要： The spacer for a nuclear fuel bundle includes unit cells having upper and lower, generally octagonally shaped walls connected one to the other by spring leg portions along sides thereof 90.degree. apart. The walls also carry stops in opposition to the sides of the walls to which the spring leg portions are connected. By orienting the cells in the spacer such that the majority of the cells have their stops lying toward one side of the spacer, the fuel bundle can be disposed in a horizontal position on the one side of the spacers. In that manner, the dead load of the fuel rods and spacers is borne by the stops along the underside of each spacer without substantially loading the springs of the spacer cells.
摘要翻译： 用于核燃料束的间隔件包括具有上部和下部，通常为八边形形状的壁的单元，所述壁通过沿其90度的侧面的弹簧腿部彼此相连。 墙壁还携带与弹簧腿部连接的壁的侧面相对的停止点。 通过使间隔物中的电池定向使得大部分电池具有位于间隔件一侧的止动件，燃料束可以设置在间隔件一侧的水平位置。 以这种方式，燃料棒和间隔件的静载荷由沿着每个间隔件的下侧的止动件承载，而基本上不加载间隔电池的弹簧。
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公开(公告)号：US5675621A
公开(公告)日：1997-10-07
申请号：US516203
申请日：1995-08-17
CPC分类号： G21C3/334 , G21Y2002/201 , Y02E30/40
摘要： A spacer for a nuclear fuel bundle comprises a plurality of discrete, generally cylindrical ferrules, with each ferrule having a pair of circumferentially spaced fuel rod contacting portions along one side of the ferrule and three superposed openings in the ferrule along an opposite side thereof. A leaf spring having opposite end projecting portions and a central projecting portion is disposed between adjacent ferrules with the end projecting portions and the central portion disposed within the openings of the ferrule. The central portion includes a boss projecting inwardly for engagement against the fuel rod in one ferrule and the end projections contain bosses projecting inwardly and spaced from the fuel rod of the one ferrule. The end projections bear against an adjacent ferrule. The spring is captured between the two ferrules and contacts the ferrules at a plurality of laterally and vertically spaced contact points so that the spring is stabilized against flow-induced vibration.
摘要翻译： 用于核燃料束的间隔件包括多个离散的大致圆柱形的套圈，每个套圈具有沿着套圈的一侧的一对沿周向间隔的燃料棒接触部分，并且在套圈的相对侧具有三个叠置的开口。 具有相对端突出部分和中心突出部分的板簧设置在相邻的套圈之间，端部突出部分和中心部分设置在套圈的开口内。 中心部分包括向内突出的凸台，用于与一个套圈中的燃料棒接合，并且端部突起包含向内突出并与一个套圈的燃料棒间隔开的凸起。 端部突起抵靠相邻的套圈。 弹簧被捕获在两个套圈之间并且在多个横向和垂直间隔的接触点处接触套圈，使得弹簧被稳定以防止流动引起的振动。
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公开(公告)号：US5757874A
公开(公告)日：1998-05-26
申请号：US678046
申请日：1996-07-10
申请人： Edward A. Croteau , Robert B. Elkins , Thomas G. Evans , Harold B. King , David G. Smith , Russell P. Higgins , Gerald M. Latter
发明人： Edward A. Croteau , Robert B. Elkins , Thomas G. Evans , Harold B. King , David G. Smith , Russell P. Higgins , Gerald M. Latter
CPC分类号： G21C3/3563 , G21Y2002/302 , G21Y2004/30 , Y02E30/40
摘要： The spacer comprises a plurality of strips interleaved with one another to form an eggcrate-type pattern defining essentially rectilinear cells for each fuel rod. Each strip includes a central body portion with cantilevered loop spring-like projections extending to opposite sides, with spring contact portions projecting inwardly. Stops are provided along each of the central body regions of the strips intermediate the loop springs that project to the opposite side of the strip. Adjoining walls have loop spring portions for biasing the rod into engagement with opposing stops whereby each fuel rod is supported at six contact points, i.e., four spring contact points and two hard stop contacts opposite the paired spring contacts.
摘要翻译： 间隔物包括彼此交错的多个条，以形成为每个燃料棒基本上限定直线细胞的蛋类型图案。 每个条带包括中心主体部分，其具有延伸到相对侧的悬臂弹簧状突出部，弹簧接触部分向内突出。 沿着条带的每个中心体区域提供止动件，该条带在环形弹簧之间延伸，该弹簧突出到条带的相对侧。 相邻的墙壁具有环形弹簧部分，用于将杆偏压成与相对的止挡接合，由此每个燃料棒被支撑在六个接触点处，即四个弹簧接触点和与成对的弹簧接触件相对的两个硬止动触头。
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公开(公告)号：US5646973A
公开(公告)日：1997-07-08
申请号：US542254
申请日：1995-10-12
CPC分类号： G21C3/3315 , G21C3/33 , G21Y2002/301 , G21Y2004/305 , Y02E30/40
摘要： A fuel bundle assembly for a nuclear reactor includes a lower tie plate; a transition piece underlying the lower tie plate; a plurality of fuel rods and at least one water rod seated on the lower tie plate and extending in substantially parallel relationship toward an upper end of the fuel bundle assembly, wherein a fuel bundle assembly lifting load is carried by load bearing members including certain of the fuel rods or by the at least one water rod; a plurality of spacers axially spaced along the at least one water rod and including means for laterally supporting each of the fuel rods; and a handle bar assembly at the upper end of the fuel bundle assembly connected to the load bearing members such that the plurality of non-load bearing fuel rods are supported only by the lower tie plate and the plurality of spacers.
摘要翻译： 用于核反应堆的燃料束组件包括下连接板; 下连接板下方的过渡件; 多个燃料棒和至少一个水杆，所述至少一个水杆位于所述下连接板上，并且以基本上平行的关系延伸到所述燃料束组件的上端，其中燃料束组件提升负载由承载构件承载，所述承载构件包括： 燃料棒或至少一个水棒; 沿着所述至少一个水杆轴向间隔开的多个间隔件，并且包括横向支撑每个所述燃料棒的装置; 以及在所述燃料束组件的上端处连接到所述承载构件的手柄杆组件，使得所述多个非承载式燃料棒仅由所述下连接板和所述多个间隔件支撑。
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5.发明授权公开(公告)号：US06320924B1
公开(公告)日：2001-11-20
申请号：US08677351
申请日：1996-07-02
申请人： Edward A. Croteau
发明人： Edward A. Croteau
IPC分类号： G21C334
摘要： A sub-assembly for a spacer in a nuclear fuel bundle includes at least first and second ferrules lying adjacent one another for receiving respective nuclear fuel rods. Each ferrule has fuel rod contacting points along one side of the ferrule for abutting a fuel rod within the ferrule, and a substantially I-shaped opening along a side of the ferrule opposite the one side. A substantially I-shaped spring adapted to seat within the opening includes a spring body lying in a plane and having opposite horizontal end portions connected by a vertical stem portion, a central portion of each of the horizontal end portions projecting away from the substantially I-shaped opening to one side of the plane and a center portion of the vertical stem projecting into the substantially I-shaped opening to an opposite side of the plane. The spring is adapted to be disposed between the adjacent ferrules with the vertical stem seated in the opening of the first ferrule with the center portion of the stem adapted to bear against the fuel rod within the first ferrule and maintaining the fuel rod against the fuel rod contacting points of the first ferrule. The horizontal end portions lie with the central portions of each end portion bearing directly against the second ferrule circumferentially between a pair of the fuel rod contacting points of the second ferrule.
摘要翻译： 用于核燃料束中的间隔件的子组件包括至少彼此相邻的第一和第二套圈，用于接收相应的核燃料棒。 每个套管具有沿着套圈的一侧的燃料棒接触点，用于将燃料棒邻接在套圈内，以及沿着与一侧相对的套圈一侧的大致I形的开口。 适于位于开口内的基本为I形的弹簧包括位于平面中并且具有由垂直杆部连接的相对的水平端部的弹簧体，每个水平端部的中心部分远离基本上为I- 并且垂直杆的中心部分突出到基本上为I形的开口中，以与该平面相反的一侧。 弹簧适于布置在相邻的套圈之间，垂直杆位于第一套圈的开口中，杆的中心部分适于承受第一套圈内的燃料棒，并将燃料棒保持在燃料棒上 第一套圈的接触点。 水平端部位于每个端部的中心部分在第二套圈的一对燃料棒接触点之间周向地直接抵靠第二套圈。
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公开(公告)号：US5566217A
公开(公告)日：1996-10-15
申请号：US380591
申请日：1995-01-30
CPC分类号： G21C3/3566 , G21C3/344 , G21Y2002/201 , G21Y2002/301 , G21Y2004/301 , G21Y2004/305 , Y02E30/40
摘要： A spacer includes a plurality of ferrules welded to one another to form a structural integral matrix for locating fuel rods in a fuel bundle. Each ferrule has a pair of stops along one side of the ferrule and a central opening along its opposite side. An elongated flat spring having openings straddling a central cross-piece is disposed along an outer edge of the ferrule with the spring openings receiving band portions of the ferrule above and below the opening through the ferrule. The intermediate cross-piece bears against an adjoining ferrule whereby the end portions of the spring bear against the rod in the one ferrule, biasing it against the opposite stops. Thus ferrule/spring construction reduces the quantity of material of the ferrule, thereby improving performance without sacrificing structural integrity.
摘要翻译： 间隔件包括彼此焊接的多个套圈，以形成用于将燃料棒定位在燃料束中的结构整体式基体。 每个套圈在套圈的一侧具有一对止动件，沿其相对侧具有中心开口。 具有穿过中心横截面的开口的细长的平面弹簧沿着套圈的外边缘设置，弹簧开口通过套圈将开口的上方和下方的套圈的带部分接收。 中间横件靠在相邻的套圈上，由此弹簧的端部抵靠在一个套圈中的杆上，将其抵靠相对的止挡件偏压。 因此，套圈/弹簧结构减小了套圈的材料的数量，从而在不牺牲结构完整性的情况下提高性能。
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公开(公告)号：US5727039A
公开(公告)日：1998-03-10
申请号：US616509
申请日：1996-03-19
申请人： John L. Harmon , Richard G. Patterson , Robert B. Elkins , Russell P. Higgins , Edward A. Croteau , Harold B. King , Christian D. Frederickson , Gerald M. Latter , Anthony P. Reese , David W. White
发明人： John L. Harmon , Richard G. Patterson , Robert B. Elkins , Russell P. Higgins , Edward A. Croteau , Harold B. King , Christian D. Frederickson , Gerald M. Latter , Anthony P. Reese , David W. White
CPC分类号： G21C3/332 , G21Y2002/302 , G21Y2002/304 , G21Y2004/301 , Y02E30/40
摘要： In a nuclear reactor fuel bundle assembly having a plurality of fuel rods and a non-round water rod extending between upper and lower tie plates, and having at least one fuel rod spacer located along the non-round water rod, an improvement which includes cooperating components on the fuel rod spacer and on the water rod for permitting movement of the spacer along the water rod to a desired axial location and for thereafter preventing further axial movement of the spacer in at least one of two opposite axial directions, the cooperating components including at least one spring on one of the spacer and the water rod.
摘要翻译： 在具有多个燃料棒和在上下连接板之间延伸的非圆形水杆的核反应堆燃料束组件中，并且具有沿着非圆形水棒定位的至少一个燃料棒间隔件，其包括配合 燃料棒间隔件和水杆上的部件，用于允许间隔件沿水杆移动到期望的轴向位置，并且此后防止间隔件在两个相对的轴向方向中的至少一个中的进一步的轴向运动，所述协作部件包括 在间隔件和水杆之一上的至少一个弹簧。
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