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1. 发明授权

US5319692A Nuclear reactor reflector 失效
标题翻译：核反应堆
公开(公告)号：US5319692A
公开(公告)日：1994-06-07
申请号：US903634
申请日：1992-06-24
申请人： Ronald J. Hopkins , John T. Land , Michael C. Misvel
发明人： Ronald J. Hopkins , John T. Land , Michael C. Misvel
IPC分类号： G21C5/10 , G21C1/00 , G21C5/00 , G21C5/12 , G21C11/06 , G21C15/02
CPC分类号： G21C11/06 , Y02E30/40
摘要： A nuclear reactor reflector is disclosed that comprises a stack of reflector blocks with vertical water flow passages to cool the reflector. The interface between blocks is opposite support points for reactor fuel rods. Water flows between the reflector and the reactor barrel from passages in a bottom block. The top block contains a flange to limit this flow and the flange has a slot to receive an alignment pin that is welded to the barrel. The pin is held in the slot by two removable shims. Alignment bars extend the length of the stack in slots machined in each block when the stack is assembled.
摘要翻译：公开了一种核反应堆反射器，其包括具有垂直水流通道的反射器块的堆叠，以冷却反射器。块之间的接口与反应堆燃料棒的支撑点相反。水在反射器和反应器筒之间从底部块中的通道流出。顶部块包含一个法兰以限制该流动，并且法兰具有用于接收焊接到筒的对准销的槽。引脚通过两个可拆卸的垫片固定在插槽中。当组装堆叠时，对准杆将堆叠的长度延伸到每个块中加工的槽中。

2. 发明授权

US4772448A Support pin system and locking nut retainer 失效
标题翻译：支撑销系统和锁紧螺母保持架
公开(公告)号：US4772448A
公开(公告)日：1988-09-20
申请号：US816782
申请日：1986-01-07
申请人： Craig H. Popalis , Ronald J. Hopkins , John T. Land , Franklin D. Obermeyer
发明人： Craig H. Popalis , Ronald J. Hopkins , John T. Land , Franklin D. Obermeyer
IPC分类号： G21C7/14 , F16B35/04 , F16B39/02 , G21C5/10 , G21C7/00 , G21C19/00
CPC分类号： G21C5/10 , G21C7/00 , G21Y2002/104 , G21Y2004/30 , G21Y2004/301 , Y02E30/39
摘要： A support pin system which is a non-welded system for fastening a first structural member, such as a nuclear reactor control rod guide tube flange, to a second structural member, such as nuclear reactor upper core plate, includes a support pin and nut. A first pin portion passes through the first member and has a threaded section which mates with the nut. A second pin portion has a solid body section and a split-leaf base section which biasingly engages a bore in the second member. The solid body section is accommodated by a close clearance fit. The split-leaf base section has an intermediate diameter which is less than the diameter of the solid body section. Thus, loads applied transversely to the system are reacted substantially in pure shear through the solid body section. The nut may be a locking nut having a crimpable cylindrical section integrally connected to an internally threaded section. The crimpable section is crimped to engage recesses provided in the pin whereby relative rotation therebetween is positively prevented. A locking nut retainer may optionally be provided for positively retaining the nut in position around the support pin which has a crimpable split cylindrical wall portion and an axial slot, and tabs. The retainer is compressed for insertion into a bore in a structural member, the bore having an annular recess for accommodating the tabs whereby the retainer is positively retained in the structural member and the wall portion is crimped to engage the nut.
摘要翻译：作为用于将诸如核反应堆控制杆引导管凸缘的第一结构构件紧固到诸如核反应堆上芯板的第二结构构件的非焊接系统的支撑销系统包括支撑销和螺母。第一销部分穿过第一构件并且具有与螺母配合的螺纹部分。第二销部分具有固体主体部分和与第二部件中的孔偏置地接合的分裂叶片基部。固体部分通过紧密间隙配合容纳。裂片叶片基部的中间直径小于固体部分的直径。因此，横向于系统施加的载荷基本上以纯剪切通过固体部分反应。螺母可以是具有与内螺纹部分一体连接的可卷曲圆柱形部分的锁定螺母。可卷曲部分被压接以接合设置在销中的凹部，从而可靠地防止它们之间的相对旋转。可以可选地设置锁定螺母保持器，用于将螺母正确地保持在具有可卷曲的分离的圆柱形壁部分和轴向狭槽以及突出部的支撑销周围的适当位置。保持器被压缩以插入到结构构件的孔中，孔具有用于容纳突片的环形凹部，由此保持器被积极地保持在结构构件中，并且壁部被压接以接合螺母。

3. 发明授权

US5490190A Alignment pin and method for aligning a nuclear fuel assembly with respect to a core plate disposed in a nuclear reactor pressure vessel 失效
标题翻译：对准销和用于使核燃料组件相对于设置在核反应堆压力容器中的芯板对准的方法
公开(公告)号：US5490190A
公开(公告)日：1996-02-06
申请号：US360514
申请日：1994-12-21
申请人： Ronald J. Hopkins , John T. Land
发明人： Ronald J. Hopkins , John T. Land
IPC分类号： G21C3/33 , G21C5/06 , G21C5/10 , G21C13/00 , G21C19/19 , G21C19/33
CPC分类号： G21C19/19 , G21C5/06 , G21Y2002/402 , G21Y2004/301 , Y02E30/40
摘要： Self-locking alignment pin and method for aligning a nuclear fuel assembly with respect to a core plate disposed in a nuclear reactor pressure vessel. The fuel assembly has a top nozzle having a first bore formed therein. The core plate has a second bore alignable with the first bore. The second bore has first threads of a first predetermined pitch and second threads of a second predetermined pitch. The alignment pin further includes a shaft that has an end portion having third threads of the first predetermined pitch for threadably engaging the first threads of the second bore. A flange, which has a plurality of recesses in the underside surface thereof, surrounds the shaft and is integrally attached thereto. A locking member surrounds the flange and has exterior fourth threads of the predetermined second pitch for threadably engaging the second threads of the second bore. The locking member also has deformable portions adapted to engage respective ones of the recesses for locking the locking member to the flange. The flange and the shaft are prevented from disengaging the bore in the core plate because the first and third threads have a pitch different than the pitch of the second and fourth threads.
摘要翻译：自锁对准销和用于使核燃料组件相对于设置在核反应堆压力容器中的芯板对准的方法。燃料组件具有顶部喷嘴，其中形成有第一孔。芯板具有可与第一孔对准的第二孔。第二孔具有第一预定间距的第一螺纹和第二预定间距的第二螺纹。所述对准销还包括轴，所述轴具有具有所述第一预定间距的具有第三螺纹的端部，用于螺纹地接合所述第二孔的所述第一螺纹。在其下表面具有多个凹部的凸缘围绕轴并且与其一体地附接。锁定构件围绕凸缘并且具有预定第二间距的外部第四螺纹，用于螺纹地接合第二孔的第二螺纹。锁定构件还具有适于接合相应的凹部的可变形部分，用于将锁定构件锁定到凸缘。由于第一和第三螺纹具有不同于第二和第四螺纹的间距的螺距，防止凸缘和轴脱离芯板中的孔。

4. 发明授权

US4770846A Replacement support pin for guide tubes in operating plants 失效
标题翻译：操作工厂的导管替换支撑销
公开(公告)号：US4770846A
公开(公告)日：1988-09-13
申请号：US576645
申请日：1984-02-03
申请人： John T. Land , Ronald J. Hopkins , Jose M. Martinez
发明人： John T. Land , Ronald J. Hopkins , Jose M. Martinez
IPC分类号： G21C7/12 , G21C3/33 , G21C3/334 , G21C7/14 , G21C19/00
CPC分类号： G21C3/334 , G21Y2002/103 , G21Y2002/302 , G21Y2004/301 , G21Y2004/50 , Y02E30/40 , Y10T29/49929 , Y10T403/4682
摘要： A support pin system (10) for fastening nuclear reactor guide tube flanges (14) to a nuclear reactor upper core plate (12) includes a support pin (16) having a lower portion (20) frictionally disposed within the upper core plate (12), while an upper section (24) is disposed within a through-bore (22) of the guide tube flange (14). The support pin (16) includes a threaded region (30) upon which is threadedly mounted a nut (32). In order to prevent retrograde rotation of the nut (32) relative to the support pin (16), a locking cap (46) is mounted upon the nut (32) and support pin (16) such that first crimped sections (48) are engaged within apertures (44) defined within the nut (32), while second crimped sections (54) are engaged within longitudinal grooves (50) defined upon the external surface of the support pin (16).
摘要翻译：用于将核反应堆引导管凸缘（14）紧固到核反应堆上芯板（12）的支撑销系统（10）包括支撑销（16），该支撑销具有摩擦地设置在上芯板（12）内的下部分），而上部（24）设置在引导管凸缘（14）的通孔（22）内。支撑销（16）包括螺纹区域（30），螺纹（32）螺纹安装在螺母（32）上。为了防止螺母（32）相对于支撑销（16）的逆向旋转，锁定帽（46）安装在螺母（32）和支撑销（16）上，使得第一压接部分（48）是接合在限定在螺母（32）内的孔（44）内，而第二卷曲部分（54）接合在限定在支撑销（16）的外表面上的纵向槽（50）内。

5. 发明授权

US5035852A Tapered leaf support pin for operating plant guide tubes 失效
标题翻译：锥形叶片支撑销，用于操作植物导管
公开(公告)号：US5035852A
公开(公告)日：1991-07-30
申请号：US376771
申请日：1989-07-07
申请人： John T. Land , Ronald J. Hopkins , Daniel E. Ford
发明人： John T. Land , Ronald J. Hopkins , Daniel E. Ford
IPC分类号： G21C7/14 , G21C5/02 , G21C7/08 , G21C13/02 , G21C19/20
CPC分类号： G21C5/02 , G21C7/08 , G21Y2002/103 , G21Y2002/104 , G21Y2002/303 , G21Y2004/30 , G21Y2004/301 , Y02E30/39
摘要： A mounting system for removably mounting the lower flange of a control rod guide tube over an opening in the upper core plate of a nuclear reactor includes support pins having first and second pin portions. The first pin portion passes through the guide tube flange and has an externally threaded section. The second pin portion is secured within the bore of the upper core plate and has a solid body section and a split-leaf section. The solid body section has an outer diameter which is accommodated in the bore by a close clearance fit. The split-leaf section has a split intermediate section and a split end section. The split intermediate section extends from the solid body section, has an outer diameter which is less than the outer diameter of the solid body section, and tapers uniformly between the solid body section and the split end section to form a conical shape. The split end section biasingly engages at least a portion of the bore wall. A locking nut threadedly engages an externally threaded section of the first pin portion. A washer is disposed around the first pin portion between the locking nut and the control rod guide tube flange and includes a concave spherical upper surface which is shiftable during mounting of the locking nut to compensate for nonperpendicular alignment between the support pin and the control rod guide tube flange.
摘要翻译：用于将控制棒引导管的下凸缘可拆卸地安装在核反应堆的上芯板中的开口上的安装系统包括具有第一和第二销部分的支撑销。第一销部分穿过导管凸缘并具有外螺纹部分。第二销部分固定在上部芯板的孔内，并具有固体部分和裂片部分。固体部分具有通过紧密间隙配合容纳在孔中的外径。分裂叶片部分具有分割中间部分和分割端部分。分割中间部分从固体部分延伸，其外径小于固体部分的外径，并且在实体部分和分离端部之间均匀地变细，以形成圆锥形状。分裂端部偏压地接合孔壁的至少一部分。锁定螺母螺纹接合第一销部分的外螺纹部分。垫圈设置在锁定螺母和控制杆引导管法兰之间的第一销部分周围，并且包括凹形球形上表面，该凹形球形上表面可在安装锁定螺母期间移位，以补偿支撑销和控制杆导向件之间的非垂直对准管法兰。

6. 发明授权

US5267285A Apparatus for suppressing formation of vortices in the coolant fluid of a nuclear reactor and associated method 失效
标题翻译：用于抑制核反应堆的冷却剂流体中涡旋形成的装置及相关方法
公开(公告)号：US5267285A
公开(公告)日：1993-11-30
申请号：US903630
申请日：1992-06-24
申请人： Douglas E. Ekeroth , Daniel C. Garner , Ronald J. Hopkins , John T. Land
发明人： Douglas E. Ekeroth , Daniel C. Garner , Ronald J. Hopkins , John T. Land
IPC分类号： G21C15/02 , G21C1/04
CPC分类号： G21C15/02 , G21Y2002/207 , G21Y2004/302 , G21Y2004/304 , Y02E30/40
摘要： An apparatus and method are provided for suppressing the formation of vortices in circulating coolant fluid of a nuclear reactor. A vortex-suppressing plate having a plurality of openings therein is suspended within the lower plenum of a reactor vessel below and generally parallel to the main core support of the reactor. The plate is positioned so as to intersect vortices which may form in the circulating reactor coolant fluid. The intersection of the plate with such vortices disrupts the rotational flow pattern of the vortices, thereby disrupting the formation thereof.
摘要翻译：提供了一种用于抑制核反应堆循环冷却剂流体中的涡流的形成的装置和方法。其中具有多个开口的涡流抑制板悬挂在反应器容器的下部通风室内，并且大致平行于反应器的主芯支撑件。板被定位成与可能在循环反应堆冷却剂流体中形成的涡流相交。板与这种涡流的交点破坏涡流的旋转流动模式，从而破坏其形成。

7. 发明授权

US5098647A Guide tube insert assembly for use in a nuclear reactor 失效
标题翻译：导管插件组件用于核反应堆
公开(公告)号：US5098647A
公开(公告)日：1992-03-24
申请号：US552461
申请日：1990-07-16
申请人： Ronald J. Hopkins , John T. Land
发明人： Ronald J. Hopkins , John T. Land
IPC分类号： G21C7/14 , G21C5/02 , G21C7/08
CPC分类号： G21C5/02 , G21C7/08 , G21Y2002/103 , G21Y2002/104 , G21Y2004/30 , Y02E30/39
摘要： A guide tube insert assembly for receiving and guiding a control rod assembly through mutually aligned apertures formed in an upper support plate and an upper core plate of a nuclear reactor is disclosed. The guide tube insert assembly includes a plurality of guide plates with each guide plate including a plurality of bores with respective bores of each of the guide plates being axially aligned with one another so as to form a plurality of axial passages for conducting rodlets of the control rod assembly into and out of the fuel rod assemblies of a nuclear reactor. A plurality of tie rods are provided and extend between an uppermost guide plate and a lowermost guide plate, the tie rods being concentrically surrounded by a plurality of spacer sleeves of a predetermined length, with the spacer sleeves being positioned between adjacent guide plates so as to space the guide plates a predetermined distance from one another. The guide tube insert assembly further includes nuts which threadingly engage opposing ends of the tie rods so as to generate a compressive force between the lowermost and the uppermost guide plates to maintain the guide plates in their predetermined positions with respect to one another. The tie rods thereby maintain the predetermined spacing between each of the plurality of guide plates and allow the plurality of guide plates to be simultaneously removed from within a guide tube extending between the upper core plate and the upper support plate within the upper internals of a nuclear reactor.

8. 发明授权

US5024808A Combined support column and guide tube for use in a nuclear reactor 失效
标题翻译：用于核反应堆的组合支柱和导管
公开(公告)号：US5024808A
公开(公告)日：1991-06-18
申请号：US553407
申请日：1990-07-17
申请人： John T. Land , Ronald J. Hopkins
发明人： John T. Land , Ronald J. Hopkins
IPC分类号： G21C5/02 , G21C7/08
CPC分类号： G21C7/08 , G21C5/02 , G21Y2002/103 , G21Y2004/30 , G21Y2004/301 , Y02E30/39
摘要： A combined support and guide tube member for use in a nuclear reactor is disclosed which both suspends an upper core plate from an upper support plate and receives and guides a control rod assembly through mutually aligned apertures in the support and core plates. The tube member generally comprises an elongated tubular body having an upper and lower mounting assembly for detachably mounting the upper and lower ends of the body around selected, aligned apertures in the support plate and core plate, respectively. The upper mounting assembly includes four mounting lugs disposed 90 degrees around the upper edge of the tubular body, as well as mounting bolts for detachably connecting the mounting lugs around an aperture in the support plate. The support plate aperture includes four cloverleaf cutouts which are complementary in shape to the four mounting lugs of the upper mounting assembly so that the entire support and guide tube member may be easily removed from the nuclear reactor by merely aligning the lugs with the cloverleaf cutouts, and withdrawing the tube member through the selected aperture. The tubular body of the tube member includes an array of flow ports for uniformly discharging pressurized water flowing out of the upper core plate in such a manner so as to avoid localized water jets which can vibrate and fret the rodlets forming the control rod assemblies. Finally, the combined support and guide tube member is formed from the same type of stainless steel forming the support and core plates to minimize stresses caused by differential thermal expansion.
摘要翻译：公开了一种用于核反应堆的组合的支撑和导管构件，其将上芯板从上支撑板悬挂并且通过支撑件和芯板中的相互对准的孔接收和引导控制杆组件。管构件通常包括细长的管状体，其具有上部和下部安装组件，用于分别将主体的上端和下端可拆卸地安装在支撑板和芯板中的选定的对齐的孔周围。上安装组件包括围绕管体的上边缘设置成90度的四个安装凸耳，以及用于将安装凸耳可拆卸地连接在支撑板上的孔周围的安装螺栓。支撑板孔包括四个苜蓿叶切口，它们的形状与上部安装组件的四个安装凸耳互补，使得整个支撑和导管构件可以通过仅将凸耳与苜蓿叶切口对准而容易地从核反应堆移除，并且通过所选择的孔撤回管构件。管构件的管状体包括用于均匀地排出从上芯板流出的加压水的流动端口的阵列，以避免局部的水射流，其可以振动并使形成控制棒组件的小球发生磨损。最后，组合的支撑和导向管构件由形成支撑和芯板的相同类型的不锈钢形成，以最小化由差分热膨胀引起的应力。

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