公开(公告)号：US4259155A

公开(公告)日：1981-03-31

申请号：US573072

申请日：1975-04-30

申请人： Martin Peehs ,  Manfred Hunner

发明人： Martin Peehs ,  Manfred Hunner

IPC分类号： G21C3/34 ,  G21C3/02

CPC分类号： G21C3/34 ,  Y02E30/40

摘要： Fuel assemblies forming cores of gas-cooled reactors, operate at temperatures too high to permit the use of resilient contact elements for holding the fuel rods centered in the openings of the spacer grids of the fuel assemblies, solid and rigid contact elements not relying on resilience, being required. In such cases intercontacting surfaces of the fuel rod metal claddings and the spacer grid contact elements, are capable of sticking together, preventing relative sliding by these surfaces to accommodate thermally induced movements, resulting in the claddings being highly stressed. To prevent this, one or both of the intercontacting surfaces are roughened or otherwise processed to have peaks and valleys or depressions so that abrasion products are carried off between the peaks, permitting the intercontacting surfaces to remain relatively slidable with the result that the previously referred to stressing of the claddings is substantially reduced as compared to that resulting when there is surface sticking together.

摘要翻译： 形成气冷反应堆核心的燃料组件在太高的温度下工作，不能使用弹性接触元件将燃料棒保持在燃料组件间隔栅格的开口中心，而不依赖于弹性的固体和刚性接触元件 ，被要求。 在这种情况下，燃料棒金属包层和间隔栅格接触元件的接触表面能够粘合在一起，防止这些表面的相对滑动以适应热引起的运动，导致包层受到高应力。 为了防止这种情况，一个或两个接触表面被粗糙化或以其他方式处理以具有峰谷和凹陷，使得磨损产物在峰之间被移走，允许中间接触表面保持相对滑动，结果是先前提及 与表面粘合在一起时所产生的包层的应力显着降低。

公开(公告)号：US4077839A

公开(公告)日：1978-03-07

申请号：US505259

申请日：1974-09-12

申请人： Martin Peehs ,  Manfred Hunner

发明人： Martin Peehs ,  Manfred Hunner

IPC分类号： G21C3/38 ,  G21C3/32 ,  G21C3/16

CPC分类号： G21C3/3213 ,  Y02E30/40

摘要： The individual fuel rods of a fuel assembly are connected to a fission gas exhaust system via perforated end caps. For this purpose, the perforated end caps are provided with external threads and screwed into a rod holding plate of the fuel assembly. In addition to the attachment thus provided, a tight connection to the canals of the fission gas exhaust system, which are built into the rod holding plate, is accomplished thereby at the same time.

摘要翻译： 燃料组件的单个燃料棒通过穿孔端盖连接到裂变气体排气系统。 为此，多孔端盖设有外螺纹并拧入燃料组件的杆保持板。 除了如此设置的附件之外，与内置在杆保持板中的裂变气体排气系统的通道紧密连接也是同时实现的。

公开(公告)号：US4306937A

公开(公告)日：1981-12-22

申请号：US97976

申请日：1979-11-28

申请人： Theodor Hensolt ,  Manfred Hunner ,  Anthony Veca ,  Peter Rau

发明人： Theodor Hensolt ,  Manfred Hunner ,  Anthony Veca ,  Peter Rau

IPC分类号： G21C3/344 ,  G21C3/34 ,  G21C3/30

CPC分类号： G21C3/3408 ,  Y02E30/40

摘要： Fuel-element spacer grid with a uniform grid field having polygonal grid-field units and grid crosspieces associated therewith, the grid crosspieces being formed with burls, fuel rods receivable in the respective grid field being centerable at the outer periphery of the fuel rods respectively, at centering surfaces of the burls of the grid crosspieces and retainable axially parallel to one another, the grid crosspieces having a transition region extending therefrom to the centering surfaces of the burls and formed with inclined surfaces for facilitating introduction and withdrawal of the fuel rods, the burls extending over only part of the axial length of the grid, and the inclined surfaces having an inclination angle .alpha. with respect to the grid plane and to a normal to the axis of the grid crosspiece such that the inclined surfaces, in turn, extend over only part of the axial length of the burls; and method of producing the spacer grids.

摘要翻译： 燃料元件间隔栅格具有均匀的栅格场，具有多边形网格场单元和与其相关联的网格横截面，栅格挡条形成有孔，分别可接收在相应栅格区域中的燃料棒可以分别位于燃料棒的外周边处， 在栅格横档的毛边的中心表面并且可轴向平行地保持的格栅横档具有从其延伸到毛边的对中表面的过渡区域，并且形成有倾斜表面，以便于燃料棒的引入和抽出， 所述凸起仅延伸在所述格栅的轴向长度的仅一部分上，并且所述倾斜表面具有相对于所述格子平面的倾斜角α和与所述格栅横档的轴线垂直的倾斜角度，使得所述倾斜表面依次延伸 只有一部分轴的长度的毛茸茸; 以及间隔栅格的制造方法。