Roof reflector for a nuclear reactor
    1.
    发明授权
    Roof reflector for a nuclear reactor 失效
    核反应堆的屋顶反射器

    公开(公告)号:US4923670A

    公开(公告)日:1990-05-08

    申请号:US128442

    申请日:1987-12-03

    IPC分类号: G21C1/07 G21C11/06 G21C15/10

    摘要: A roof reflector comprising at least three individual layers of tapered layer elements combined in the form of vertical columns. Each column rests on a block column of the lateral reflector. Individual elements are secured by wedges and dowels to permit vertical column movements without constraint. The top and bottom layers comprise gas collector spaces communicating with each other by passage openings in the middle layer. In the top and bottom layers are also slot-shaped passage openings leading to an from the collector spaces. Preferably, they are radially offset relative to the passage openings in the middle layer to obtain good gas mixing as it rises through the reflector.Such a roof reflector is useful for avoiding roof reflector element damage if one element is vertically displaced relative to an adjacent element. The roof elements are carefully designed to achieve this end and maintain cover utility.

    摘要翻译: 一种屋顶反射器,包括以垂直柱的形式组合的至少三个锥形层元件的单独层。 每列搁置在横向反射器的块列上。 单个元件通过楔形和榫钉固定,以允许垂直柱移动而不受约束。 顶层和底层包括通过中间层中的通道开口彼此连通的气体收集器空间。 顶层和底层也是从收集空间通向的槽形通道开口。 优选地,它们相对于中间层中的通道开口径向偏移,以在通过反射器上升时获得良好的气体混合。 如果一个元件相对于相邻元件垂直移位,这种屋顶反射器可用于避免屋顶反射器元件损坏。 屋顶元件经过精心设计,以达到此目的,并保持盖板效用。

    Ceramic installations
    2.
    发明授权
    Ceramic installations 失效
    陶瓷装置

    公开(公告)号:US4830818A

    公开(公告)日:1989-05-16

    申请号:US5585

    申请日:1987-01-21

    IPC分类号: G21C5/04 G21C7/107 G21C11/06

    摘要: A gas-cooled high temperature reactor having a core filled with spherical fuel elements is provided comprising a graphite side reflector including at least one nose-like projection comprised of a plurality of graphite nose stones stacked one upon the other, said nose stones each including at least one vertically disposed continuous cavity aligned with at least one vertically disposed continuous cavity in adjacent nose stones, said cavity adapted to receive discrete absorber material elements introduced into the reactor core, said nose stones further including at least one vertically aligned continuous gap which extends into said nose stones from a front portion thereof and is aligned with a corresponding continuous gap in adjacent nose stones, communication between said continuous gap and said cavity being prevented, said nose stones also comprising in top and bottom surfaces thereof sealing means which enable adjacent nose stones to be stacked in a manner sufficient to seal said at least one cavity in a gas-tight manner, thus preventing communication between said cavity and said core.

    摘要翻译: 提供一种具有填充有球形燃料元件的芯的气体冷却式高温反应器,其包括石墨侧反射器,该石墨侧反射器包括至少一个鼻状突起,所述至少一个鼻状突起包括彼此堆叠的多个石墨鼻石块, 至少一个垂直设置的连续空腔与相邻鼻梁中的至少一个垂直设置的连续空腔对准,所述腔适于接收引入到反应堆芯中的不连续的吸收体材料元件,所述鼻结石还包括至少一个垂直排列的连续间隙, 所述鼻梁从其前部分并与相邻鼻梁中的相应的连续间隙对准,防止所述连续间隙和所述空腔之间的连通,所述鼻石头还包括其顶表面和底表面,其密封装置使得相邻的鼻石头 以足以密封所述室的方式堆叠 以一个气密的方式延伸一个空腔,从而防止所述空腔和所述芯之间的连通。

    Ceramic installations
    3.
    发明授权
    Ceramic installations 失效
    陶瓷装置

    公开(公告)号:US4798700A

    公开(公告)日:1989-01-17

    申请号:US5656

    申请日:1987-01-21

    摘要: A gas-cooled high temperature reactor is provided having a core filled with spherical fuel elements, in combination with a graphite side reflector including at least one nose-like projection protruding radially into the reactor core from said graphite said reflector, the at least one nose-like projection including at least one vertically disposed cavity adapted to receive discrete absorber material elements introduced into said reactor core as well as a vertically disposed continuous opening which permits communication between said cavity and the core of the reactor, said opening having a maximum width adjacent said cavity which is less than the minimum dimension of said discrete absorber material elements in order to prevent passage of said elements into said continuous opening from said cavity.

    摘要翻译: 提供了一种气体冷却的高温反应器,其具有填充有球形燃料元件的核心,与石墨侧反射器组合,该石墨侧反射器包括从所述石墨反射器径向突出到反应堆芯中的至少一个鼻状突起,所述至少一个鼻 类似的突起包括至少一个垂直设置的腔,其适于接收引入到所述反应堆芯中的不连续的吸收体材料元件以及允许所述空腔与所述反应器的芯之间连通的垂直设置的连续开口,所述开口具有相邻的最大宽度 所述空腔小于所述离散吸收体材料元件的最小尺寸,以便防止所述元件从所述空腔通入所述连续开口。

    Inspection device with television camera for nuclear installations
    4.
    发明授权
    Inspection device with television camera for nuclear installations 失效
    带有核装置的电视摄像机的检查装置

    公开(公告)号:US4424531A

    公开(公告)日:1984-01-03

    申请号:US265693

    申请日:1981-05-20

    IPC分类号: G21C17/08 H04N5/225 H04N7/18

    摘要: An inspection device for the inspection of internal spaces in nuclear reactor installations requires extremely small dimensions while being capable of use at high temperatures and exposures to radiation during shutdown periods of the reactor. The device is designed so that it is readily adapted to a particular inspection purpose. The particular device meeting these requirements comprises a camera arranged in a tube and cooled in such tube. The objective of the camera and/or a mirror are each connected with means for relative movement. A source light and the movement means are designed as separate structural elements which may be assembled in different combinations in a modular fashion.

    摘要翻译: 用于检查核反应堆装置内部空间的检查装置需要非常小的尺寸,同时能够在高温下使用并在反应堆的停机期间暴露于辐射。 设备的设计使其易于适应特定的检查目的。 满足这些要求的特定装置包括布置在管中并在这种管中冷却的照相机。 摄像机和/或镜子的目的各自与用于相对运动的装置相连。 源光和移动装置被设计为分开的结构元件,其可以以模块化的方式组合成不同的组合。

    Shutdown of a high temperature reactor
    5.
    发明授权
    Shutdown of a high temperature reactor 失效
    关闭高温反应堆

    公开(公告)号:US5032349A

    公开(公告)日:1991-07-16

    申请号:US5584

    申请日:1987-01-21

    IPC分类号: G21C1/07 G21C5/04 G21C7/107

    摘要: A process is provided for the long term shutdown of a high temperature nuclear reactor comprised of a pile of spherical fuel elements in a core by means of a neutron absorbing absorber material wherein the absorber material consisting of spherical absorber elements is introduced in the core of spherical fuel elements in the form of a column, but wherein the intermixing of the absorber material with the fuel elements is prevented. An apparatus for practicing the process is also provided comprised of a graphite side reflector concentrically surrounding a circular cylindrical core filled with a pile of spherical fuel elements of a high temperature nuclear reactor, into which at least two nose shaped projections distributed uniformly about the circumference radially project, with each of the projections comprising a vertical cavity to contain the absorber material. The vertical cavity is located in the vicinity of the core in the area of the frontal side facing the core of each projection. Pourable absorber material provided by means of a reservoir located above the core and introduced into the vertical cavity penetrates the pile of spherical fuel elements in the form of a column, thereby absorbing neutron radiation.

    摘要翻译: 提供了一种方法,用于通过中子吸收吸收材料长期关闭由核心中的一堆球形燃料元件组成的高温核反应堆,其中将由球形吸收体元件组成的吸收体材料引入球形核心 燃料元件为柱形,但是其中防止了吸收体与燃料元件的混合。 还提供了一种用于实施该方法的设备,其包括石英侧反射器,其同心地围绕填充有高温核反应堆的一堆球形燃料元件的圆柱形芯,至少两个鼻形突起围绕径向均匀分布 其中每个突起包括垂直腔以容纳吸收体材料。 垂直腔位于面向每个突起的芯的正面的区域中的芯附近。 通过位于核心上方并被引入垂直腔中的储存器提供的可倾式吸收体材料以柱形式穿透一堆球形燃料元件,从而吸收中子辐射。

    Drive for an absorber rod of a nuclear reactor
    6.
    发明授权
    Drive for an absorber rod of a nuclear reactor 失效
    驱动一个核反应堆的吸收杆

    公开(公告)号:US4349507A

    公开(公告)日:1982-09-14

    申请号:US159862

    申请日:1980-06-16

    IPC分类号: G21C7/16

    摘要: The drive for an absorber rod for a nuclear reactor has a drive piston guided in a cylinder combined with the absorber rod forming an absorber unit. In order to compensate the forces exerted by the medium of the pressure vessel on the absorber unit and tending to pressure the absorber rod axially outward, an equalizing surface is arranged in the absorber unit. The equalizing surface is exposed on one side to the medium of the pressure vessel and/or the cooling medium of the absorber rod, so that an equalizing force is acting on the absorber unit. In the event of a failure of the drive medium acting on the drive piston of the absorber unit or during fluctuations and changes of the internal pressure in the pressure vessel, the absorber unit remains in its existing position, i.e. no unintentional withdrawal of the absorber rod from the pressure vessel takes place.

    摘要翻译: 用于核反应堆的吸收杆的驱动器具有在与吸收器杆组合的气缸中引导的驱动活塞,形成吸收器单元。 为了补偿由压力容器的介质施加在吸收器单元上并且倾向于将吸收器杆轴向向外挤压的力,平衡表面设置在吸收器单元中。 平衡表面在一侧暴露于压力容器的介质和/或吸收杆的冷却介质,使得均衡力作用在吸收器单元上。 在作用在吸收器单元的驱动活塞上的驱动介质发生故障或在压力容器内的内部压力波动和变化的情况下,吸收器单元保持在其现有位置,即,不会意外地将吸收器杆 从压力容器发生。

    Absorber rod
    7.
    发明授权
    Absorber rod 失效
    吸收杆

    公开(公告)号:US4863672A

    公开(公告)日:1989-09-05

    申请号:US159484

    申请日:1988-02-22

    IPC分类号: G21C7/10 G21C7/107

    摘要: An absorber rod for nuclear reactors with a pile of spherical fuel elements, which is inserted directly into the pile, in order to affect the prevailing neutron flux by absorber material located in an annular gap between two concentric cylindrical rod elements. The absorber rod has concentric rod elements arranged in pairs, a common rod tip and common connecting pieces. The rod elements are cooled by flow of gas and the inner cylindrical rod element performs the support function, i.e., it absorbs and transmits forces and moments originating in the movements of the rod during insertion and extraction.

    摘要翻译: 用于具有一堆球形燃料元件的核反应堆的吸收杆,其直接插入桩中,以便通过位于两个同心圆柱形杆元件之间的环形间隙中的吸收材料影响主要的中子通量。 吸收杆具有成对布置的同心杆元件,公共杆尖端和公共连接件。 杆元件通过气体流动而被冷却,内圆柱形杆元件执行支撑功能,即,其在插入和抽出期间吸收和传递源于杆的移动的力和力矩。

    Angled gas conduit
    8.
    发明授权
    Angled gas conduit 失效
    角度气体导管

    公开(公告)号:US4380085A

    公开(公告)日:1983-04-12

    申请号:US136271

    申请日:1980-04-01

    IPC分类号: G21C1/07 G21C3/56 F15D1/04

    CPC分类号: G21C1/07 Y02E30/36

    摘要: Disclosed is an angled gas conduit for a gas flowing under high pressure and at an elevated temperature which comprises a first conduit part and second conduit part connected at an angle forming an area of deflection for gas flowing within said conduit parts, an apertured plate arranged at an oblique angle within said conduit in the area of deflection, the apertured plate having a plurality of circular passages for directing the flow of gas in the conduit. A mounting arrangement for the apertured plate is also disclosed.

    摘要翻译: 公开了一种用于在高压和高温下流动的气体的成角度的气体导管,其包括以形成用于在所述导管部分内流动的气体的偏转区域的角度连接的第一导管部分和第二导管部分, 在偏转区域内的所述管道内的倾斜角度,所述多孔板具有用于引导导管中的气体流的多个圆形通道。 还公开了一种用于多孔板的安装装置。

    Graphite block having wear zone and load bearing zone for side reflector
of high temperature reactor
    9.
    发明授权
    Graphite block having wear zone and load bearing zone for side reflector of high temperature reactor 失效
    具有高温反应堆侧反射器耐磨区和承载区的石墨块

    公开(公告)号:US4314883A

    公开(公告)日:1982-02-09

    申请号:US85873

    申请日:1979-10-18

    IPC分类号: G21C11/06 G21C5/08

    CPC分类号: G21C11/06 Y02E30/40

    摘要: A plurality of graphite blocks forms a side reflector with an area of each block that allows a certain amount of radiation induced wear in a predefined zone facing the core of the reactor and an area separate from the wear zone for carrying the load bearing function of the side reflector. Most critical is the area of the upper range of the reactor core where radiation induced wear is greatest. The wear is taken into consideration in the design layout of the side reflector in the form of an increment to the thickness of the wall. The load bearing areas of each block provide the load bearing area for the entire side reflector. The side reflector is particularly suitable for high temperature gas-cooled reactors of the pebble bed type.

    摘要翻译: 多个石墨块形成具有每个块的面积的侧反射器,其允许在面向反应堆的核心的预定区域中的一定量的辐射诱发的磨损和与磨损区分离的区域以承载 侧反射器。 最关键的是辐射诱导磨损最大的反应堆芯的上限范围。 在侧壁反射器的设计布局中以与壁厚的增量的形式考虑磨损。 每个块的承载区域为整个侧面反射器提供承载区域。 侧反射器特别适用于卵石床型的高温气冷反应堆。