公开(公告)号：US5137682A

公开(公告)日：1992-08-11

申请号：US617876

申请日：1990-11-26

申请人： Gerhard Hau ,  Werner Meier ,  Helmut Moldaschl ,  Peter Rau ,  Rainer Huber ,  Anton Kautetzky ,  Jorg Tschemernjak

发明人： Gerhard Hau ,  Werner Meier ,  Helmut Moldaschl ,  Peter Rau ,  Rainer Huber ,  Anton Kautetzky ,  Jorg Tschemernjak

IPC分类号： G21C7/14 ,  G21C7/12

CPC分类号： G21C7/12 ,  G21Y2002/50 ,  G21Y2004/30 ,  G21Y2004/301 ,  Y02E30/39

摘要： A nuclear reactor includes a pressure vessel enclosing a plenum, a core in the pressure vessel, a pressure-tight encapsulation in the pressure vessel communicating with the plenum, and control members passing through the encapsulation and having first and second control member segments. The second control member segment has an absorber part to be at least partly inserted into and retracted out of the core for controlling reactivity. The first control member segment has an outer drive part. A control drive is associated with the outer drive part for adjusting the control member along the longitudinal direction thereof. An antieject device for restraining ejection of the control member out of the pressure vessel due to a leak at the encapsulation includes a rod coupling having a disengageable coupling catch interconnecting the first and second control member segments and remaining in engagement during normal control motion of the control member and means for unlocking the coupling catch. After disconnection the second control member segment and the absorber part remain in the core for assuming a position fully inserted into the core.

摘要翻译： 核反应堆包括封闭增压室的压力容器，压力容器中的芯，与压力容器连通的压力容器中的压力密封，以及通过封装并具有第一和第二控制构件段的控制构件。 第二控制构件段具有至少部分地插入并缩回到芯中以用于控制反应性的吸收体部分。 第一控制构件段具有外部驱动部。 控制驱动器与外部驱动部分相关联，用于沿其纵向方向调节控制部件。 用于限制由于在封装处的泄漏而将压力容器弹出的压力装置包括一个杆联接器，该联接器具有一个可脱离的联接卡扣，其将第一和第二控制构件段互相连接并在控制器的正常控制运动期间保持接合 用于解锁联轴器的构件和装置。 在断开之后，第二控制构件段和吸收体部分保留在芯部中，用于假定完全插入到芯中的位置。

公开(公告)号：US5116569A

公开(公告)日：1992-05-26

申请号：US563697

申请日：1990-08-07

申请人： Shigeki Kasahara ,  Kiyotomo Nakata ,  Jiro Kuniya ,  Shigeo Hattori

发明人： Shigeki Kasahara ,  Kiyotomo Nakata ,  Jiro Kuniya ,  Shigeo Hattori

IPC分类号： G21C3/07 ,  C22C38/00 ,  C22C38/40 ,  C22C38/58 ,  G21B1/11 ,  G21B1/17 ,  G21C3/30 ,  G21C7/12 ,  G21C13/08

CPC分类号： C22C38/58 ,  Y10S376/90

摘要： An austenitic steel excellent in resistance to neutron irradiation embrittlement which contains, by weight, not more than 0.03% carbon, not more than 1% silicon, 5 to 25% manganese, 15 to 26% chromium, and 10 to 20% nickel, the ratio of atomic volume of chromium to the average atomic volume of matrix of the steel being from 0.900 to 1.030. It is possible to add to the austenitic steel, besides the above-mentioned alloying elements, at least one element selected from the group consisting of niobium, titanium, zirconium, tantalum and vanadium which are effective in corrosion resistance and irradiation embrittlement under neutron irradiation in total amounts of not more than 1.0%. At least one of components composing the inside of a nuclear reactor or nuclear fusion reactor is made of the austenitic steel.

公开(公告)号：US5102614A

公开(公告)日：1992-04-07

申请号：US725703

申请日：1991-07-03

申请人： Robert C. Dixon ,  Gerald A. Deaver ,  James R. Punches ,  Guy E. Singleton ,  John G. Erbes ,  Henry P. Offer

发明人： Robert C. Dixon ,  Gerald A. Deaver ,  James R. Punches ,  Guy E. Singleton ,  John G. Erbes ,  Henry P. Offer

IPC分类号： G21C7/12 ,  G21C19/02

CPC分类号： G21C19/02 ,  G21C19/207 ,  G21C7/12 ,  G21Y2002/402 ,  G21Y2004/40 ,  G21Y2004/50 ,  G21Y2004/502 ,  Y02E30/39

摘要： In a boiling water nuclear reactor having its core, fuel support casting, and control rod guide tubes removed to expose the core plate, a method for the submerged welding repair and replacement of the control rod drive housing at the bottom extremity of the reactor vessel is disclosed. An alignment device registers to a hole in the core plate and its corresponding guide pin. A control rod drive housing mating fixture on the depending extremity of the shaft of the alignment device precisely fits and mates to the top of the control rod drive housing. The alignment device includes cross electronic levels sealed for submersion which levels remotely transfer through attached wiring the precise angularity between the top of the control rod drive housing on one hand and the corresponding and overlying hole in the core plate on the other hand. For the welding repair process herein, a welding cylinder apparatus fits over the depending end of the shaft of the alignment device. This welding cylinder protrudes downwardly and around the control rod drive housing mating to the stub tube through which the control rod drive housing is inserted. In the embodiment here illustrated, a rotating raceway is provided interior of the chamber for permitting TIG welding unit to traverse around a path for weldment defined at the side of the control rod drive housing and at the top of the stub tube.

摘要翻译： 在其核心的燃料水核反应堆，燃料支撑铸造和控制棒导管被移除以露出芯板的情况下，用于在反应堆容器的底端进行浸没式焊接修理和更换控制棒驱动器壳体的方法是 披露 对准装置对准芯板中的孔及其对应的引导销。 控制杆驱动器壳体配合夹具在对准装置的轴的悬垂末端精确配合并配合到控制杆驱动器壳体的顶部。 对准装置包括用于浸没密封的交叉电子水平，其水平通过附接布线远程传递一方面控制杆驱动器壳体的顶部与另一方面在芯板中的相应和上覆孔之间的精确角度。 对于这里的焊接修补过程，焊接圆柱装置装配在对准装置的轴的悬垂端上。 该焊接圆筒向下突出并且围绕控制棒驱动器壳体突出，该壳体配合到插棒管，插入管驱动器壳体。 在这里所示的实施例中，旋转滚道设置在腔室的内部，用于允许TIG焊接单元围绕限定在控制棒驱动器壳体侧面和短管顶部的焊接路径。

公开(公告)号：US5059382A

公开(公告)日：1991-10-22

申请号：US296817

申请日：1989-01-13

申请人： Serge Jahnke ,  Philippe Ple

发明人： Serge Jahnke ,  Philippe Ple

IPC分类号： G21C7/14 ,  G21C7/12 ,  G21C7/36

CPC分类号： G21C7/12 ,  G21C7/36 ,  G21Y2002/201 ,  G21Y2002/205 ,  G21Y2004/40 ,  G21Y2004/401 ,  Y02E30/39

摘要： Control clusters, each of which comprises a plurality of neutron-absorbing rods, are operable by means of electromagnetic mechanisms whose coils are powered by power bridges driven from a control desk (11). The control system includes a controlling hard-wired logic circuit (12) serving the desk and supervising a plurality of hard-wired logic interfaces each of which serves a subgroup (10) of electromagnetic mechanisms for a determined number of clusters. The static power assemblies (9) each including a hard-wired logic interface and the power bridges of the subgroup(s) (10) served thereby are successively and independently replaced by at least one electronic power assembly (23) constituted by a computer and the power bridges of a subgroup served thereby.

摘要翻译： 控制簇，其中每个包括多个中子吸收杆，其可通过电磁机构操作，电磁机构的线圈由从控制台（11）驱动的电源桥供电。 控制系统包括用于桌面的控制硬连线逻辑电路（12），并监督多个硬连线逻辑接口，每个逻辑接口为确定数量的集群的电磁机构的子组（10）提供服务。 每个包括硬连线逻辑接口和由此服务的子组（10）的功率桥的静态电源组件（9）由至少一个由计算机构成的电子电源组件（23）连续地和独立地代替， 一个小组的电力桥梁由此服务。

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。

公开(公告)号：US4753769A

公开(公告)日：1988-06-28

申请号：US813332

申请日：1985-12-26

申请人： Fernand Savary

发明人： Fernand Savary

IPC分类号： G21C7/27 ,  G21C7/12 ,  G21C7/14 ,  G21C19/105 ,  G21C19/19

CPC分类号： G21C7/12 ,  G21C19/105 ,  G21Y2002/303 ,  G21Y2002/40 ,  G21Y2004/501 ,  Y02E30/39

摘要： Device and method for retaining a linearly movable element in a nuclear reactor. The device comprises, for each shaft, a base fixed to the top part of the reactor internals and coaxial with a shaft guide tube; several grippers or catches spaced apart about the axis of the base and mounted for pivotal movement about a horizontal axis towards a position into and out of engagement with a portion, having circumferential grooves, of the shaft contained in the tube; a slide movable axially on the base towards a top position where it causes engagement of the catches in a groove of the rod, and out of such position; and springs bearing on the base and tending to engage the catches on the shaft. The slide is dimensioned so as to be held by the corresponding sleeve projecting through the reactor vessel cover in a position sufficiently distant from the low position for the catches to be released, whatever the temperature in the reactor.

摘要翻译： 用于将线性可移动元件保持在核反应堆中的装置和方法。 该装置包括：固定到反应器内部件的顶部并与轴引导管同轴的每个轴的底座; 几个夹持器或卡爪围绕基座的轴线间隔开并且安装成围绕水平轴线枢转运动以进入与包含在管中的轴的具有周向凹槽的部分接合的位置; 可滑动地在底座上朝向顶部位置移动的滑块，在该顶部位置，卡盘将其卡在杆的凹槽中并脱离该位置; 并且弹簧支撑在基座上并且倾向于将卡钩接合在轴上。 滑动件的尺寸被设计成被相应的套筒保持在与反应器容器盖相反的位置上，该位置与反应器内的任何温度无关，该位置足够远离低位置以释放卡子。

公开(公告)号：US4696783A

公开(公告)日：1987-09-29

申请号：US823545

申请日：1986-01-29

申请人： Guy Lesaulnier ,  Fernand Savary

发明人： Guy Lesaulnier ,  Fernand Savary

IPC分类号： G21C7/14 ,  G21C7/12

CPC分类号： G21C7/14 ,  G21Y2002/201 ,  G21Y2002/30 ,  G21Y2002/301 ,  G21Y2004/302 ,  Y02E30/32 ,  Y02E30/39

摘要： The electromagnetic device is suitable for use in actuating a pressurized water reactor control bar. It comprises a shaft and a fluid-tight casing in which are movable longitudinally a first and a second sets of grippers for gripping the shaft, staggered in the longitudinal direction. The first set of grippers is associated with a movable pole co-operating with a holding coil, carried by the casing and movable by energization and de-energization of the coil between a position in which the first set of grippers holds the shaft and a position in which it releases it. The second set of grippers is associated with a movable plunger co-operating with a transfer coil and movable by energization and de-energization of the transfer coil to and from a position in abutment against an other pole. The other pole is movable between two positions spaced apart by a given step. The movable pole belongs to a mechanism for cutting off a path coolant fluid constituting a thermosiphon causing convection flow between the inside of the vessel and the space defined by the casing.

摘要翻译： 电磁装置适用于启动加压水反应堆控制棒。 它包括一个轴和一个流体密封的外壳，其中纵向移动第一和第二组夹持器，用于夹紧轴，沿纵向错开。 第一套夹持器与由保持线圈协作的可动杆与由壳体承载并可通过线圈的通电和断电而移动，该位置在第一组夹持器保持轴的位置和位置之间 在其中它释放它。 第二组夹持器与可移动柱塞相配合，可移动柱塞与传送线圈配合，并且可通过将传递线圈通电和断开与邻接于另一极的位置的位置进行移动。 另一个极可以在给定步骤间隔开的两个位置之间移动。 可动杆属于用于切断构成热虹吸管路的冷却剂流体的机构，从而引起容器内部和由壳体限定的空间之间的对流。

公开(公告)号：US4640811A

公开(公告)日：1987-02-03

申请号：US505899

申请日：1983-06-22

申请人： Rene Peletan

发明人： Rene Peletan

IPC分类号： F16H31/00 ,  G21C7/14 ,  G21C7/12

CPC分类号： F16H31/007 ,  G21C7/14 ,  G21Y2002/101 ,  G21Y2004/30 ,  Y02E30/39

摘要： Magnetic actuators with dogs for positioning regulating rods in a nuclear reactor. The dogs (2) for lifting and/or holding the control shaft (1) are provided with at least two teeth (4) separated by a distance equalling that separating two successive grooves (3) of the shaft (1).

摘要翻译： 具有用于在核反应堆中定位调节杆的狗的磁致动器。 用于提升和/或保持控制轴（1）的掣子（2）设置有至少两个分开相等于分离轴（1）的两个连续槽（3）的距离的距离的齿（4）。

公开(公告)号：US4411857A

公开(公告)日：1983-10-25

申请号：US254709

申请日：1981-04-16

申请人： Bettadapur N. Sridhar

发明人： Bettadapur N. Sridhar

IPC分类号： G21C7/12 ,  G21C9/02 ,  G21C7/08

CPC分类号： G21C7/12 ,  G21C9/02 ,  G21Y2002/50 ,  G21Y2004/30 ,  Y02E30/39

摘要： Nuclear reactor safety rod release apparatus comprises a ring which carries detents normally positioned in an annular recess in outer side of the rod, the ring being held against the lower end of a drive shaft by magnetic force exerted by a solenoid carried by the drive shaft. When the solenoid is de-energized, the detent-carrying ring drops until the detents contact a cam surface associated with the lower end of the drive shaft, at which point the detents are cammed out of the recess in the safety rod to release the rod from the drive shaft. In preferred embodiments of the invention, an additional latch is provided to release a lower portion of a safety rod under conditions that may interfere with movement of the entire rod.

摘要翻译： 核反应堆安全杆释放装置包括环，该环承载通常位于杆的外侧的环形凹部中的棘爪，环通过由驱动轴承载的螺线管施加的磁力抵靠驱动轴的下端。 当螺线管断电时，止动环下降直到定位器接触与驱动轴的下端相关联的凸轮表面，此时制动器从安全杆中的凹槽中凸出以释放杆 从驱动轴。 在本发明的优选实施例中，提供附加闩锁以在可能干扰整个杆的运动的条件下释放安全杆的下部。

公开(公告)号：US4292133A

公开(公告)日：1981-09-29

申请号：US023902

申请日：1979-03-26

申请人： Masayoshi Sasaki ,  Yoshimi Ishii ,  Tomiharu Yoshida ,  Sen Sugiyama

发明人： Masayoshi Sasaki ,  Yoshimi Ishii ,  Tomiharu Yoshida ,  Sen Sugiyama

IPC分类号： G21C7/12 ,  G21C19/20 ,  G21C7/08

CPC分类号： G21C7/12 ,  G21C19/207 ,  G21Y2002/401 ,  G21Y2004/501 ,  Y02E30/39

摘要： A control rod drive attaching and detaching device and a control rod drive handling device are mounted on a revolving device to be movable independently from each other. The control rod drive attaching and detaching device includes bolt handling means for loosening and tightening bolts for fastening a control rod drive to a pressure vessel of a nuclear reactor, coolant splash preventing means for disposing of coolant which flows from the control rod drive when the latter is detached from the pressure vessel, and uncoupling means for uncoupling a control rod from the control rod drive. The control rod drive handling device includes a column pivotally mounted on a carriage, a cart removably mounted on the column, and means for moving the column to a horizontal position. Each control rod drive mounted to the pressure vessel of the nuclear reactor is detached from the pressure vessel by the control rod attaching and detaching device and transferred to the cart of the control rod drive handling device. The column is moved to a horizontal position, and the cart with the control rod drive supported thereon is removed from the column.

摘要翻译： 控制杆驱动装置和拆卸装置以及控制杆驱动装卸装置安装在旋转装置上以能够彼此独立地移动。 控制杆驱动装置和拆卸装置包括螺栓处理装置，用于松开和紧固用于将控制杆驱动器紧固到核反应堆的压力容器的螺栓，用于处理从控制棒驱动器流出的冷却剂的冷却剂防溅装置， 与压力容器分离，以及用于将控制杆与控制棒驱动器分离的非耦合装置。 控制杆驱动装置装置包括一个可枢转地安装在滑架上的支柱，可拆卸地安装在该柱上的一个支架，以及用于将该列移动到水平位置的装置。 安装到核反应堆的压力容器的每个控制棒驱动器通过控制杆安装和拆卸装置从压力容器分离并转移到控制棒驱动装卸装置的推车上。 将柱移动到水平位置，并且将支撑在其上的控制杆驱动器的推动器从柱上移除。