-
公开(公告)号：US4568111A
公开(公告)日：1986-02-04
申请号：US527547
申请日：1983-08-29
摘要： A locking connection for releasably attaching a handling socket to the duct tube of a fuel assembly for a nuclear reactor. The connection comprises a load pad housing mechanically attached to the duct tube and a handling socket threadably secured within the housing. A retaining ring is interposed between the housing and the handling socket and is formed with a projection and depression engageable within a cavity and groove of the housing and handling socket, respectively, to form a detachable interlocked connection assembly.
摘要翻译： 用于可释放地将处理插座连接到用于核反应堆的燃料组件的导管的锁定连接。 该连接包括机械地连接到管道管的负载衬垫壳体和可螺纹地固定在壳体内的操作插座。 保持环插入在壳体和处理插座之间，并且分别形成有可分别接合在壳体和操纵插座的空腔和凹槽内的突起和凹陷，以形成可拆卸的互锁连接组件。
-
公开(公告)号：US4563328A
公开(公告)日：1986-01-07
申请号：US545064
申请日：1983-10-25
申请人： Alexander Steinke
发明人： Alexander Steinke
CPC分类号： G21C3/331 , G21C3/334 , G21C3/33 , G21Y2002/302 , G21Y2002/40 , G21Y2004/301 , G21Y2004/50 , Y02E30/40
摘要： A nuclear reactor fuel assembly with two support plates and a holding rod connecting the two support plates rigidly with mutual spacing, the holding rod having a longitudinal axis passing through both support plates, and being held at one end in a lead-through in one of the two support plates, includes, in the lead-through, an elongated holding body for the holding rod rotatable about the longitudinal axis thereof, and displaceable in direction of the longitudinal axis thereof coaxially with the lead-through; the holding body being rigidly connectible by a rotation relative to the holding rod about the longitudinal axis thereof to an end of the holding rod and tightenable against a holding shoulder in the one support plate and detachable from the holding rod; and a spring element braced against the support plate and pressing the holding body elastically against the holding shoulder.
摘要翻译： 具有两个支撑板的核反应堆燃料组件和连接两个支撑板的相互间隔刚性的保持杆，所述保持杆具有穿过两个支撑板的纵向轴线，并且一端保持在一个引导件 所述两个支撑板在所述引导件中包括用于所述保持杆的细长保持体，所述保持杆可围绕其纵向轴线旋转，并且可沿其纵向方向与所述引导件同轴地移位; 所述保持体通过相对于所述保持杆的纵向轴线相对于所述保持杆的端部的旋转而刚性地可连接，并且能够抵靠所述一个支撑板中的保持肩部并且可从所述保持杆拆卸; 以及弹簧元件，其支撑在支撑板上并且将保持体弹性地按压在保持肩上。
-
公开(公告)号：US4344914A
公开(公告)日：1982-08-17
申请号：US175814
申请日：1980-08-06
申请人： Jerry M. Rosa
发明人： Jerry M. Rosa
摘要： A bottom end member (17b) on a retrievable fuel pin (13b) secures the pin (13b) within a nuclear reactor (12) by engaging on a transverse attachment rail (18) with a spring clip type of action. Removal and reinstallation if facilitated as only axial movement of the fuel pin (13b) is required for either operation. A pair of resilient axially extending blades (31) are spaced apart to define a slot (24) having a seat region (34) which receives the rail (18) and having a land region (37), closer to the tips (39) of the blades (31) which is normally of less width than the rail (18). Thus an axially directed force sufficient to wedge the resilient blades (31) apart is required to emplace or release the fuel pin (13b) such force being greater than the axial forces on the fuel pins (13b) which occur during operation of the reactor (12).
摘要翻译： 可回收燃料销（13b）上的底端构件（17b）通过以弹簧夹式动作接合在横向附接轨道（18）上，将销（13b）固定在核反应堆（12）内。 如果促进了拆卸和重新安装，因为只要这两个操作都需要燃油销（13b）的轴向运动。 一对弹性轴向延伸的叶片（31）被间隔开以限定具有座位区域（34）的狭槽（24），所述座位区域（34）容纳轨道（18）并且具有靠近尖端（39）的平台区域（37） 叶片（31）的宽度通常小于导轨（18）的宽度。 因此，足以将弹性叶片（31）分开的轴向力的力需要排出或释放燃料销（13b），该力大于在反应器运行期间发生的燃料销（13b）上的轴向力（ 12）。
-
公开(公告)号：US4323428A
公开(公告)日：1982-04-06
申请号：US92237
申请日：1979-11-07
摘要： A reconstitutable fuel assembly for a nuclear reactor which includes a mechanical, rather than metallurgical, arrangement for connecting control rod guide thimbles to the top and bottom nozzles of a fuel assembly. Multiple sleeves enclosing control rod guide thimbles interconnect the top nozzle to the fuel assembly upper grid. Each sleeve is secured to the top nozzle by retaining rings disposed on opposite sides of the nozzle. Similar sleeves enclose the lower end of control rod guide thimbles and interconnect the bottom nozzle with the lowermost grid on the assembly. An end plug fitted in the bottom end of each sleeve extends through the bottom nozzle and is secured thereto by a retaining ring. Should it be necessary to remove a fuel rod from the assembly, the retaining rings in either the top or bottom nozzles may be removed to release the nozzle from the control rod guide thimbles and thus expose either the top or bottom ends of the fuel rods to fuel rod removing mechanisms.
摘要翻译： 一种用于核反应堆的可重组的燃料组件，其包括用于将控制杆导向套管连接到燃料组件的顶部和底部喷嘴的机械的而不是冶金的装置。 封闭控制杆导向套管的多个套筒将顶部喷嘴与燃料组件上部格栅相互连接。 每个套筒通过设置在喷嘴的相对侧上的保持环固定到顶部喷嘴。 类似的套筒包围控制杆导向套管的下端，并将底部喷嘴与组件上的最下面的格栅相互连接。 安装在每个套筒的底端的端塞延伸穿过底部喷嘴并通过保持环固定在其上。 如果需要从组件中取出燃料棒，可以去除顶部或底部喷嘴中的固定环以从控制杆导向套筒释放喷嘴，从而将燃料棒的顶端或底端暴露于 燃料棒去除机构。
-
公开(公告)号：US4306938A
公开(公告)日：1981-12-22
申请号：US9285
申请日：1979-02-02
申请人： Tsuneyasu Yamanaka
发明人： Tsuneyasu Yamanaka
摘要： A pad of a fuel assembly with a wrapper tube is pressed out from the interior of the wrapper tube to provide a band-like pad. The pad is reinforced by a reinforcing member fitted in a hollow portion of the pad. The pad is joint to the reinforcing member, or made so that swelling of the pad does not exceed that of the reinforcing material.
摘要翻译： 具有包裹管的燃料组件的垫从包裹管的内部被压出以提供带状垫。 衬垫通过装配在垫的中空部分中的加强构件来增强。 衬垫与加强构件接合，或者制成使得垫的膨胀不超过加强材料的膨胀。
-
公开(公告)号：US4269661A
公开(公告)日：1981-05-26
申请号：US915650
申请日：1978-06-15
摘要： A top nozzle for a nuclear reactor fuel assembly which includes an orifice plate designed to receive control rod guide tubes extending upwardly from the top of the fuel assembly. Nozzle pin extensions connected to the orifice plate are axially coextensive with the guide tubes and project upwardly through a top nozzle hold-down plate, and through openings in the upper core plate in the reactor. The hold-down plate is spring biased into an upper core plate engaging position and since the pin extensions are adapted to move in the core plate and against the action of the springs, the top nozzle thus becomes effective in accommodating upwardly acting hydraulic forces which tend to lift the fuel assembly, and to accommodate differential expansion of parts in the fuel assembly as compared to the core barrel in which the assembly is located. The number of pins disposed in the hold-down plate move in slots formed in each of the guide tube extensions and the uppermost position of the fuel assembly is determined when the pin is in the bottom of its slot in each of the guide tubes.
摘要翻译： 用于核反应堆燃料组件的顶部喷嘴，其包括设计成接收从燃料组件的顶部向上延伸的控制杆引导管的孔板。 连接到孔板的喷嘴销延伸部与引导管轴向共同延伸并且向上突出通过顶部喷嘴压紧板，并且穿过反应器中的上部芯板中的开口。 压紧板被弹簧偏置到上芯板接合位置，并且由于销延伸部适于在芯板中移动并抵抗弹簧的作用，所以顶部喷嘴因此变得有效地适应向上作用的液压力 以提升燃料组件，并且与组件所在的芯筒相比，适应燃料组件中部件的不同膨胀。 设置在压板中的销的数量在形成在每个导管延伸部中的槽中移动，并且当销在其每个引导管中的槽的底部时确定燃料组件的最上部位置。
-
67.发明授权Method and apparatus for adjusting the elevation of fuel rods in a nuclear reactor fuel assembly 失效用于调节核反应堆燃料组件中的燃料棒的高度的方法和装置
公开(公告)号：US4265010A
公开(公告)日：1981-05-05
申请号：US963596
申请日：1978-11-24
申请人： Glenn D. Doss , Theodore W. Nylund
发明人： Glenn D. Doss , Theodore W. Nylund
CPC分类号： G21C3/334 , G21C3/33 , Y02E30/40 , Y10T29/49718 , Y10T29/53891 , Y10T74/19647
摘要： Method and apparatus for adjusting the level of fuel rods in a fuel assembly which includes a tool having an end insertable between a fuel assembly nozzle plate and the exposed ends of fuel rods. The insertable end of the tool includes stationary and movable plates, the movable plate having a portion which rests on flanges in a forked end of the stationary plate while the other end of said movable plate is bent in a manner such that it lies above the stationary plate. A pair of gears are located in the space defined by the spaced ends of said plates, and screw threaded shafts extend through threaded openings in the movable plate and into gears located in the space between the ends of the plates, so that when one of the shafts is rotated, the force transmitted through said gears causes the other shaft to rotate and the coaction of both threaded shafts thus causes the movable plate to move in a direction away from the stationary plate, and in so doing, cause the fuel rod in contact with the movable plate to be moved in an axial direction and into a position where the end thereof lies in the same plane as the ends of other fuel rods in the assembly.
摘要翻译： 用于调节燃料组件中的燃料棒的高度的方法和装置，其包括具有可插入在燃料组件喷嘴板和燃料棒的暴露端之间的端部的工具。 工具的可插入端包括固定和可移动的板，可移动板具有一部分，该部分位于固定板的叉形端部中的凸缘上，而可移动板的另一端弯曲成使其位于固定 盘子。 一对齿轮位于由所述板的间隔开的端部限定的空间中，并且螺纹轴通过可移动板中的螺纹开口延伸到位于板的端部之间的空间中的齿轮中，使得当其中一个 轴旋转，通过所述齿轮传递的力使另一个轴旋转，并且两个螺纹轴的共同作用使得可动板沿远离固定板的方向移动，并且在这样做中，使燃料棒接触 其中可移动板沿轴向方向移动到其端部位于与组件中的其它燃料棒的端部相同的平面中的位置。
-
公开(公告)号：USRE30065E
公开(公告)日：1979-08-07
申请号：US865000
申请日：1977-12-27
CPC分类号： G21C3/33 , G21C1/08 , G21C3/3563 , Y02E30/40
摘要： .Iadd.A nuclear reactor with control rods in channels between fuel assemblies wherein the fuel assemblies incorporate guide rods which protrude outwardly into the control rod channels to prevent the control rods from engaging the fuel elements. The guide rods also extend back into the fuel assembly such that they are relatively rigid members. The guide rods are tied to the fuel assembly end or support plates and serve as structural members which are supported independently of the fuel element. Fuel element spacing and support means may be attached to the guide rods..Iaddend.
-
公开(公告)号：US4078967A
公开(公告)日：1978-03-14
申请号：US708514
申请日：1976-07-26
申请人： Andrew James Anthony
发明人： Andrew James Anthony
摘要： An apparatus for preventing "floating" of nuclear-reactor fuel assemblies due to hydraulic forces is disclosed. The apparatus uses a holddown column made of the same material as the core barrel. The column is positioned in a center guide-tube location in the fuel assembly in such a manner as to enable it either to slide within the center guide tube or, if the center guide tube is replaced by the column, to slide through openings in the spacer grids. The lower end of the holddown column engages the lower end fitting of the fuel assembly, and the upper end of the column engages a flow plate to which holddown force is applied. As a consequence of this arrangement, holddown force is transmitted from the flow plate through the holddown column to the lower end fitting. Movement of the fuel assembly is thereby prevented without a compression load being applied to the fuel-assembly structure. In addition, variations due to thermal expansion in the distance between the lower core plate and the upper core plate are largely made up for by corresponding variations in the holddown column because the holddown column and the core barrel can be made of the same material.
摘要翻译： 公开了一种用于防止由于液压而“浮”的核反应堆燃料组件的装置。 该装置使用由与芯筒相同的材料制成的压紧柱。 该柱以燃料组件的中心导管位置的方式定位，以使其能够在中心导向管内滑动，或者如果中心导管被柱替代，则滑动通过 间隔网格 压紧柱的下端接合燃料组件的下端配件，并且柱的上端接合施加压紧力的流动板。 作为这种布置的结果，压紧力从流板通过压紧柱传递到下端配件。 因此，在不对燃料组件结构施加压缩载荷的情况下，可以防止燃料组件的移动。 此外，由于按压柱和芯筒可以由相同的材料制成，因此通过压紧柱的相应变化，很大程度上弥补了由于下芯板和上芯板之间的距离的热膨胀引起的变化。
-
公开(公告)号：US4045287A
公开(公告)日：1977-08-30
申请号：US643512
申请日：1975-12-22
申请人： Aart van Santen
发明人： Aart van Santen
摘要： A fuel assembly includes a bundle of vertical fuel rods. Some of the rods are tying rods provided with extended upper end plugs, and the rest of the rods are spring-furnished ones, the spring forces balancing the tying forces exerted by the tying rods between a top plate and a bottom plate. The top plate is grid-like and provided with attachment holes for the upper end plugs. The lower end plugs of the tying rods are screwed in threaded holes in the bottom plate. Each of the upper end plugs of the tying rods has a portion located above the top plate and provided with a nut. Rotation of the nut is limited by at least one downwardly directed projection on the nut, the end surface of which lies below the upper edge of the top plate. The maximally allowable length of this projection is less than the maximum shortening of the springs that can be carried out by exerting a downwardly directed force on the top plate. With such a projection length the projections can clear the side and the nut can be rotated and removed.
摘要翻译： 燃料组件包括一束立式燃料棒。 一些杆是带有延伸的上端塞的捆扎杆，其余的杆是弹簧的，弹簧力平衡由顶板和底板之间的捆扎杆施加的捆扎力。 顶板是格子状的并且具有用于上端塞的附接孔。 捆扎杆的下端插头拧入底板的螺纹孔中。 捆扎杆的每个上端塞具有位于顶板上方并设有螺母的部分。 螺母的旋转受到螺母上的至少一个向下指向的突起的限制，螺母的端表面位于顶板的上边缘的下方。 该突起的最大允许长度小于可以通过在顶板上施加向下的力来执行的弹簧的最大缩短。 通过这样的突出长度，突起可以清除侧面并且可以旋转和移除螺母。
-
-
-
-
-
-
-
-
-
搜索结果
473 条记录 (耗时 0.017 秒)
