Gas cooled high temperature reactor charged with spherical fuel elements
    1.
    发明授权
    Gas cooled high temperature reactor charged with spherical fuel elements 失效
    装有球形燃料元件的气冷高温反应器

    公开(公告)号:US4778646A

    公开(公告)日:1988-10-18

    申请号:US760414

    申请日:1985-07-30

    CPC分类号: G21C19/207 G21C1/07 Y02E30/36

    摘要: The invention relates to a gas cooled high temperature reactor located in the cavity of a pressure vessel, with spherical fuel elements, and removal apparatus for fuel elements. The latter is made of at least one ceramic pebble outlet tube extending through the graphite structural parts of the nuclear reactor (bottom reflector, bottom layers) and a number of metal pebble outlet tubes installed through the bottom of the pressure vessel. They are arranged coaxially in the liner of the passage through the vessel. To be able to dismantle the metal pebble outlet tubes, they are constructed of several releasably interconnected tube segments. Between the uppermost tube segment and the corresponding ceramic pebble outlet tube a compensating tube is provided and connected with the tube segment by means of a sliding joint. The other end of the compensating tube is fastened to the thermal bottom shield. Relative movements caused by the thermal expansion of the bottom shield and the pebble outlet tubes are compensated by the slide joints. Simultaneously, the necessary tight sealing is assured.

    摘要翻译: 本发明涉及一种位于压力容器空腔中的气体冷却式高温反应器,其具有球形燃料元件和用于燃料元件的去除装置。 后者由延伸穿过核反应堆(底部反射器,底层)的石墨结构部分和穿过压力容器底部安装的多个金属卵石出口管的至少一个陶瓷卵石出口管制成。 它们同轴地布置在通过容器的通道的衬里中。 为了能够拆卸金属卵石出口管,它们由几个可释放地连接的管段构成。 在最上管段和相应的陶瓷卵石出口管之间,通过滑动接头提供并与管段连接的补偿管。 补偿管的另一端固定在热底盖上。 由底板和卵石出口管的热膨胀引起的相对运动由滑动接头补偿。 同时,确保必要的紧密密封。

    Angled gas conduit
    2.
    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。

    Bottom shield for a gas cooled high temperature nuclear reactor
    5.
    发明授权
    Bottom shield for a gas cooled high temperature nuclear reactor 失效
    用于气体冷却高温核反应堆的底部防护罩

    公开(公告)号:US4490328A

    公开(公告)日:1984-12-25

    申请号:US359838

    申请日:1982-03-19

    IPC分类号: G21C11/08 G21C1/07 G21C11/06

    CPC分类号: G21C11/06 G21C1/07 Y02E30/36

    摘要: A gas cooled, high temperature nuclear reactor is provided with a base plate arranged under the reactor core and over the bottom of the prestressed concrete pressure vessel serving as the bottom shield. The bottom shield comprises at least two plates arranged coaxially with respect to each other, one above the other. Each plate comprises several partially interconnected parts with the lower plate being placed at an axial and vertical distance from the bottom liner of the prestressed concrete pressure vessel and also from the upper plate.

    摘要翻译: 气体冷却的高温核反应堆设置有布置在反应堆芯下方的底板和用作底部屏蔽的预应力混凝土压力容器的底部。 底部屏蔽件包括至少两个相对于彼此同轴布置的板,一个在另一个之上。 每个板包括几个部分相互连接的部件,其中下板与预应力混凝土压力容器的底部衬套以及上部板的轴向和垂直距离放置。

    Radiation shield and shielded gas conduit for a reactor pressure vessel
    6.
    发明授权
    Radiation shield and shielded gas conduit for a reactor pressure vessel 失效
    用于反应堆压力容器的辐射屏蔽和屏蔽气体导管

    公开(公告)号:US4381282A

    公开(公告)日:1983-04-26

    申请号:US177494

    申请日:1980-08-12

    摘要: An improved design for shielding the component parts of a gas turbine power plant from radiation in a gas transport conduit is disclosed. The radiation shield and shielded gas conduit utilize a shielding arrangement comprising a displacement body arranged centrally within the conduit and a shielding annulus surrounding the displacement body. A shielding device provides for a first annular flow path for reactor cooling gas between the displacement body and shielding annulus and a second annular flow path for reactor cooling gas between the shielding annulus and the conduit housing. The shielding device provides protection against radiation without significantly disrupting the flow of the cooling gas in the conduits.

    摘要翻译: 公开了一种改进的设计,用于将燃气轮机发电厂的部件与气体输送导管中的辐射隔离。 辐射屏蔽和屏蔽气体导管利用一种屏蔽装置,该屏蔽装置包括布置在导管内的移位体和围绕位移体的屏蔽环。 屏蔽装置提供用于位移体和屏蔽环之间的反应器冷却气体的第一环形流动路径和用于在屏蔽环和导管壳体之间的反应器冷却气体的第二环形流动路径。 屏蔽装置提供防止辐射的保护,而不会明显地破坏导管中的冷却气体的流动。

    Steam generator heated with the cooling gas of a nuclear reactor
    7.
    发明授权
    Steam generator heated with the cooling gas of a nuclear reactor 失效
    蒸汽发生器用核反应堆的冷却气体加热

    公开(公告)号:US4692301A

    公开(公告)日:1987-09-08

    申请号:US735922

    申请日:1985-05-20

    CPC分类号: G21C1/07 F22B1/1823 Y02E30/36

    摘要: The invention concerns a steam generator heated by the cooling gas of a nuclear reactor and arranged in the reactor pressure vessel within a vertical shaft. A blower associated with the steam generator is installed above it. The hot gas is conducted to the steam generator in the form of a helical bundle in the downward direction, with the hot gas being conducted initially downward through an annular channel and entering the bundle of heat exchanger tubes at a uniform velocity. The annular channel is sealed in upward direction by means of a sliding seal, which also serves as an earthquake support. In order to provide access to the feed water and live steam lines in view of the blower arranged on top, the two lines are conducted laterally out of and through the reactor pressure vessel. By means of the special fixation of the individual tubes of the heat exchanger bundle in vertical plates and the presence of an expansion zone for the recycling pipes, differential thermal expansion may be kept small.

    摘要翻译: 本发明涉及一种由核反应堆的冷却气体加热并在反应堆压力容器内设置在垂直轴内的蒸汽发生器。 与蒸汽发生器相关联的鼓风机安装在其上。 热气体以向下的方式以螺旋形束的形式传导到蒸汽发生器,热气体首先通过环形通道向下传导并以均匀的速度进入热交换器管束。 环形通道通过滑动密封件向上方向密封,也可作为地震支架。 考虑到设置在顶部的鼓风机,为了提供对进料水和活蒸汽管路的通路,两条管线横向导出并通过反应堆压力容器。 通过在垂直板中热交换器束的各个管的特殊固定以及用于再循环管的膨胀区的存在,差动热膨胀可以保持较小。

    Inspection device with television camera for nuclear installations
    8.
    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。

    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。

    Shutdown of a high temperature reactor
    10.
    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。