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1. 发明授权

US4683111A Gas circulator for a nuclear reactor and a method for use thereof 失效
标题翻译：用于核反应堆的气体循环器及其使用方法
公开(公告)号：US4683111A
公开(公告)日：1987-07-28
申请号：US821844
申请日：1986-01-23
申请人： John L. Helm , John S. Leonard
发明人： John L. Helm , John S. Leonard
IPC分类号： F16C39/02 , F16C39/06 , G21C15/253 , H02K5/12 , H02K7/09 , H02K9/18 , G21C3/56
CPC分类号： F16C32/0442 , F16C32/047 , F16C37/005 , F16C39/02 , G21C15/253 , H02K5/12 , H02K7/09 , H02K9/18 , Y02E30/33
摘要： An improved gas circulator for a gas-cooled nuclear reactor system is disclosed which includes a stator, a rotor having a rotor shaft, and an impeller attached to one end thereof. A radial active magnetic bearing and a radial backup bearing are positioned proximate each end of the rotor shaft. An axial active magnetic bearing is also located between the ends of the rotor shaft, as is an axial backup bearing, with two of the backup bearings enclosed within a sealed chamber that may contain a lubricant, for example, a solid lubricant or a liquid lubricant. Preferably, the gas circulator is installed in a nuclear reactor system with the rotor shaft in a substantially vertical orientation and the sealed chamber near the bottom of the rotor shaft. The lower radical backup bearing and the axial backup bearing are advantageously located within the sealed chamber. The lower radial backup bearing and the axial backup bearing may be spaced apart sufficiently to permit the lower radial backup bearing to provide substantially all radial support for the rotor when the radial active magnetic bearings are deenergized.
摘要翻译：公开了一种用于气冷核反应堆系统的改进的气体循环器，其包括定子，具有转子轴的转子和附接到其一端的叶轮。径向主动磁轴承和径向支承轴承位于转子轴的每一端附近。轴向有源磁性轴承也位于转子轴的端部之间，轴向支撑轴承也是如此，其中两个备用轴承封闭在可容纳润滑剂的密封室内，例如固体润滑剂或液体润滑剂。优选地，气体循环器安装在核反应堆系统中，转子轴处于基本垂直的方向，密封室靠近转子轴的底部。下基部支承轴承和轴向支承轴承有利地位于密封室内。下径向支承轴承和轴向支承轴承可以被充分隔开，以允许下径向支承轴承在径向主动磁轴承断电时为转子提供基本上所有的径向支撑。

2. 发明授权

US4638166A Radiation shield 失效
标题翻译：辐射盾
公开(公告)号：US4638166A
公开(公告)日：1987-01-20
申请号：US707070
申请日：1985-03-01
申请人： Thomas O. Baudro
发明人： Thomas O. Baudro
IPC分类号： G21F3/04 , G21F3/00
CPC分类号： G21F3/04
摘要： A portable and collapsible radiation shielding device is provided for the protection of personnel and equipment from ionizing radiation. The shield has a plurality of horizontally elongated slats of radiation shielding material, such as lead wool, hung from a plurality of horizontally spaced apart chains at spaced intervals along the length of the chains. The slats are connected to the chains near their top edges so that when they are in their raised state the slats are suspended from the chains and arranged in an overlapping manner, like shingles, and when collapsed arrange themselves neatly side by side in a stack. The device also has a container adapted to receive the shield in its collapsed state, and a hoist and mast for raising and lowering the shield into and out of the container. The container further has wheels for facilitating moving the device to the desired location, and an outrigger for providing stability to the shield when raised. The mast is dissassemblable so that it can be stored within the container along with the shield when not in use. The container may also have an opening at an end to facilitate removal of the radiation shield from the container when it is supported by means other than the mast.
摘要翻译：提供便携式和可折叠的辐射屏蔽装置，用于保护人员和设备免受电离辐射。屏蔽件具有多条横向延伸的辐射屏蔽材料板条，例如引线丝，沿着链的长度以间隔开的间隔从多个水平隔开的链中悬挂。板条连接到靠近其顶部边缘的链条，使得当它们处于其凸起状态时，板条从链条悬挂并且以重叠的方式布置，如带状疱状物，并且当折叠时将它们整齐地并排排列成堆叠。该装置还具有适于接收处于其折叠状态的护罩的容器，以及用于将护罩升高和降低到容器中的提升和桅杆。容器还具有便于将装置移动到所需位置的轮子，以及用于在升起时为护罩提供稳定性的支腿。桅杆是可拆卸的，以便在不使用时可将其与护罩一起存储在容器内。容器还可以在端部具有开口，以便当其被除了桅杆之外的装置支撑时便于从容器移除辐射屏蔽。

3. 发明授权

US4595419A Ultrasonic decontamination robot 失效
标题翻译：超声波去污机器人
公开(公告)号：US4595419A
公开(公告)日：1986-06-17
申请号：US453762
申请日：1982-12-27
申请人： Richard S. Patenaude
发明人： Richard S. Patenaude
IPC分类号： F22B37/00 , G21F9/00 , B08B3/12
CPC分类号： F22B37/003 , G21F9/005
摘要： An ultrasonic decontamination robot removes radioactive contamination from the internal surface of the inlet and outlet headers, divider plate, tube sheet, and lower portions of tubes of a nuclear power plant steam generator. A programmable microprocessor controller guides the movement of a robotic arm mounted in the header manway. An ultrasonic transducer having a solvent delivery subsystem through which ultrasonic action is achieved is moved by the arm over the surfaces. A solvent recovery suction tube is positioned within the header to remove solvent therefrom while avoiding interference with the main robotic arm. The solvent composition, temperature, pressure, viscosity, and purity are controlled to optimize the ultrasonic scrubbing action. The ultrasonic transducer is controlled at a power density, frequency, and on-off mode cycle such as to optimize scrubbing action within the range of transducer-to-surface distance and solvent layer thickness selected for the particular conditions encountered. The robot is also equipped with an ultrasonic position-sensing transducer for determining standoff distance.
摘要翻译：超声波去污机器人从核电厂蒸汽发生器的入口和出口集管，分隔板，管板和管的下部的内表面去除放射性污染物。可编程微处理器控制器引导安装在接头管道中的机器人手臂的运动。具有通过其获得超声波作用的溶剂输送子系统的超声波换能器通过臂在表面上移动。溶剂回收吸管位于集管内以从其中除去溶剂，同时避免与主机械臂的干涉。控制溶剂组成，温度，压力，粘度和纯度以优化超声波洗涤作用。超声波换能器被控制在功率密度，频率和开 - 关模式周期，以便在针对所遇到的特定条件选择的换能器到表面距离和溶剂层厚度的范围内优化擦洗作用。机器人还配备有用于确定间隔距离的超声波位置感测传感器。

4. 发明授权

US4863676A Inherently safe, modular, high-temperature gas-cooled reactor system 失效
标题翻译：本质安全，模块化，高温气冷反应堆系统
公开(公告)号：US4863676A
公开(公告)日：1989-09-05
申请号：US810993
申请日：1985-12-19
申请人： John L. Helm , John S. Leonard
发明人： John L. Helm , John S. Leonard
IPC分类号： G21C1/07 , G21C15/18
CPC分类号： G21C15/18 , G21C1/07 , Y02E30/33 , Y02E30/36
摘要： In a high-temperature gas-cooled nuclear reactor system, which is suitable for modular utilization in combination with one or more other similar nuclear reactor systems, an arrangement which comprises passive heat sink means for absorbing decay heat energy generated at a reactor core included within said reactor system; and means for removing heat energy from said heat sink means at a rate sufficient to maintain the capacity of the heat sink means for absorption of decay heat energy such that release of fission products resulting from loss of forced circulation of gas coolant, or such loss in combination with coolant depressurization, when the reactor is critical and at power is prevented, thereby to provide safety means independent of human or automatic activation; and method embodiments corresponding to same.
摘要翻译：在适用于与一个或多个其他类似的核反应堆系统组合的模块化利用的高温气冷核反应堆系统中，包括被动散热装置的装置，该装置用于吸收在包括在内的反应堆核心处产生的衰减热能所述反应堆系统; 以及用于以足以维持散热装置的能力来吸收衰变热能的速率从所述散热装置移除热能的装置，使得由于气体冷却剂的强制循环损失而导致的裂变产物的释放或这种损失与冷却剂减压相结合，当反应堆处于危急状态并处于停电状态时，从而提供独立于人或自动激活的安全装置; 和相应的方法实施例。

5. 发明授权

US4683110A Apparatus and method for consolidating spent fuel rods 失效
标题翻译：用于固结乏燃料棒的装置和方法
公开(公告)号：US4683110A
公开(公告)日：1987-07-28
申请号：US745409
申请日：1985-06-14
申请人： Thomas O. Baudro , John S. Leonard
发明人： Thomas O. Baudro , John S. Leonard
IPC分类号： G21C19/36 , G21C19/00
CPC分类号： G21C19/36
摘要： An apparatus for consolidating spent fuel rods from spent fuel assemblies includes a container with a bottom and front, back, and side walls. The container has a plurality of flutes positioned adjacent to the front wall, and the plurality of flutes defines a plurality of channels. The apparatus also includes a plurality of springs, which are mounted on a support. The springs bear against the flutes and the channels when no fuel rods have been inserted into the container and the support is located proximate the front wall. The springs assist in guiding a fuel rod into a preselected location in the container; the springs are capable of maintaining the fuel rod in the preselected location. Preferably, each spring is a resilient finger that extends outwardly from the support toward the front wall. The support may be a movable sheet. The apparatus advantageously includes a device for moving the support. Such a device may automatically position the support in response to control signals.
摘要翻译：用于从乏燃料组件固结乏燃料棒的装置包括具有底部和前部，后部和侧壁的容器。容器具有邻近前壁定位的多个凹槽，并且多个凹槽限定多个通道。该装置还包括多个弹簧，其安装在支撑件上。当没有燃料棒已经插入容器并且支撑件位于前壁附近时，弹簧抵靠凹槽和通道。弹簧有助于将燃料棒引导到容器中的预选位置; 弹簧能够将燃料棒保持在预选位置。优选地，每个弹簧是从支撑件朝向前壁向外延伸的弹性指状物。支撑件可以是可动片材。该装置有利地包括用于移动支撑件的装置。这样的装置可以响应于控制信号来自动定位支持。

6. 发明授权

US4659536A System and method for consolidating spent fuel rods 失效
标题翻译：用于固结乏燃料棒的系统和方法
公开(公告)号：US4659536A
公开(公告)日：1987-04-21
申请号：US745402
申请日：1985-06-14
申请人： Thomas O. Baudro
发明人： Thomas O. Baudro
IPC分类号： G21C19/34 , G21C19/32
CPC分类号： G21C19/34 , Y10T29/531
摘要： A system for consolidating spent fuel rods from spent fuel assemblies includes an operator and control station, a fuel rod transfer tool with a gripper assembly, indexing devices, and a fuel consolidation station. The fuel rod transfer tool and gripper assembly grips a fuel rod and withdraws it from a fuel bundle until it is clear of the bundle. The tool, with the fuel rod drawn up inside it, is moved to another location where it is desired to place the fuel rod; the tool inserts the rod, and the gripper releases it. The fuel consolidation station has a frame that holds two fuel assemblies and a consolidation container. The bottom of the frame rests on the floor of the fuel pool. The top of the frame supports the indexing devices. An indexing device is provided for each of the fuel assemblies and the consolidation container. An indexing device for a fuel asembly is capable of guiding the gripper assembly to a position above a preselected rod in the associated fuel assembly, while the indexing device for the consolidation container is capable of guiding the gripper assembly, which may be holding a rod, to a position above a preselected location in the consolidation container. Preferably, each indexing device has an indexing head that is slidably mounted on a pair of rails, and these pairs of rails are slidably mounted on a further pair of rails. The further pair of rails runs transversely to the former pairs of rails, thus permitting each indexing head to be moved in two perpendicular directions.
摘要翻译：用于从乏燃料组件固定乏燃料棒的系统包括操作员和控制站，具有夹持器组件的燃料棒传送工具，分度装置和燃料固化站。燃料棒转移工具和夹具组件夹住燃料棒并从燃料束中取出燃料棒，直到其离开束。将燃料棒在其内部拉起的工具移动到需要放置燃料棒的另一位置; 该工具插入杆，并且夹具释放它。燃料合并站具有一个框架，该框架可容纳两个燃料组件和一个固结容器。框架的底部位于燃料池的地板上。框架的顶部支持索引设备。为每个燃料组件和固结容器提供分度装置。用于燃料组件的分度装置能够将夹具组件引导到相关联的燃料组件中的预选杆上方的位置，而用于固结容器的分度装置能够引导可夹持杆的夹持器组件，到达合并容器中预选位置的位置。优选地，每个分度装置具有可滑动地安装在一对导轨上的分度头，并且这些导轨可滑动地安装在另一对导轨上。另一对轨道横向于前一对轨道，从而允许每个分度头沿两个垂直方向移动。

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