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公开(公告)号：US4125434A
公开(公告)日：1978-11-14
申请号：US760357
申请日：1977-01-19
申请人： Gustav Fromel , Peter Suchy , Gerhard Ulrych
发明人： Gustav Fromel , Peter Suchy , Gerhard Ulrych
CPC分类号： G21C3/3563 , G21C3/322 , Y02E30/38
摘要： A nuclear reactor-fuel element with cylindrical fuel rods and a fuel element skeleton formed of a head and foot member and cylindrical control rod-guide tubes connecting the members includes a plurality of mesh-forming spacing holder-grids for the fuel rods fastened to the guide tubes, the control rod-guide tubes being received respectively in the mesh formed by the spacing holder-grids, and flow guide means in vicinity of at least one of the spacing holder-grids largely closing, from a flow-technology standpoint, the cross section of the respective mesh surrounding the guide tube received therein.
摘要翻译： 具有圆柱形燃料棒和由头部和脚部构件形成的燃料元件骨架的核反应堆 - 燃料元件和连接该构件的圆柱形控制杆导向管包括多个用于固定到该燃料棒上的燃料棒的成网间隔保持架网格 引导管，控制棒导向管分别被接收在由间隔保持架网格形成的网格中，并且流动引导装置在距离流动技术的观点，至少一个间隔保持架网格附近大大关闭。 围绕引导管的各个网的横截面被容纳在其中。
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公开(公告)号：US4587086A
公开(公告)日：1986-05-06
申请号：US683325
申请日：1984-12-18
申请人： Gerhard Ulrych
发明人： Gerhard Ulrych
摘要： Nuclear reactor with a radiation-emitting core including a container for conducting a coolant, the radiation-emitting container having a wall formed with a plurality of slots disposed parallel to one another, the slots having a depth within the wall equal to at least one-fourth the thickness of the wall, the slots being spaced from one another a distance which is at most as great as the depth thereof.
摘要翻译： 具有辐射发射芯的核反应堆，包括用于传导冷却剂的容器，所述辐射发射容器具有形成有彼此平行设置的多个槽的壁，所述壁内的深度等于至少一个 - 第四是壁的厚度，槽彼此间隔开至多等于其深度的距离。
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公开(公告)号：US4043868A
公开(公告)日：1977-08-23
申请号：US627206
申请日：1975-10-30
申请人： Leonhard Irion , Jurgen Tautz , Gerhard Ulrych
发明人： Leonhard Irion , Jurgen Tautz , Gerhard Ulrych
摘要： A pressurized-water reactor pressure vessel has a plurality of inlet openings through which coolant is introduced from the cold legs of a plurality of main coolant loops, into an annular descent space of restricted radial extent and formed between the inside of the vessel's side wall and the outside of a core barrel on the inside of the vessel. To prevent outward loss of coolant from the vessel in the event of a break in any of the cold legs, the vessel is internally provided with a check valve assembly for each of the inlet openings, and to avoid restriction of the normal inlet coolant flow rate, each assembly comprises a plurality or series of flap valves which are each individually of small dimensions so that they can be fitted into the descent space. Therefore, these flap valves are normally held open by the inlet coolant flow but can snap shut to outward coolant flow. Due to their small dimensions, they are very sensitive to coolant flow in the descent space through the vessel's various inlet openings making it possible for some of these valves to flutter between fully open and partially closed or fully closed positions in regions of low coolant flow velocity. To prevent this fluttering possibility, each valve assembly comprises means for forming a flow-confining chamber extending downwardly from the coolant inlet opening involved, and having an open lower end substantially conforming in contour to a segment of the annular descent space, the flap valves being mounted in the form of a row in this open lower end of the chamber. In this way, the flow is directed in a predeterminable manner also in case of a break, so that the flap valves associated with the broken pipe defenitely close and are prevented from fluttering.
摘要翻译： 压力水反应堆压力容器具有多个入口开口，冷却剂通过该入口开口从多个主冷却剂回路的冷腿引入限制径向范围的环形下降空间，并形成在容器的侧壁和 在容器内部的核心桶的外部。 为了防止在任何冷腿断裂的情况下从容器向外损失冷却剂，容器内部设置有用于每个入口的止回阀组件，并且为了避免限制正常的入口冷却剂流量 ，每个组件包括多个或一系列瓣阀，每个瓣阀各自具有小尺寸，使得它们可以装配到下降空间中。 因此，这些瓣阀通常由入口冷却剂流动保持打开，但可以向外冷却剂流动。 由于它们的尺寸较小，它们对通过容器的各种入口开口的下降空间中的冷却剂流动非常敏感，使得这些阀中的一些阀可以在低冷却剂流速区域中的完全打开和部分关闭或完全关闭位置之间颤动 。 为了防止这种颤动的可能性，每个阀组件包括用于形成从所涉及的冷却剂入口向下延伸的流动限制室的装置，并且具有基本上符合环形下降空间的段的轮廓的开口下端， 以这种开口的下端安装成行的形式。 以这种方式，在断裂的情况下也可以以可预定的方式引导流动，使得与断开的管道相关联的活瓣阀被无限地关闭并且防止其振动。
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