Operating element charging and withdrawal in a gas cooled high
temperature reactor
    1.
    发明授权
    Operating element charging and withdrawal in a gas cooled high temperature reactor 失效
    在气体冷却高温反应器中操作元件充放电

    公开(公告)号:US4654189A

    公开(公告)日:1987-03-31

    申请号:US699303

    申请日:1985-02-07

    IPC分类号: G21C1/12 G21C19/20

    CPC分类号: G21C19/202

    摘要: A medium power, high temperature pebble bed nuclear reactor, which includes a means for introduction and withdrawal of operating elements. The installation is provided in such a way that it can be more economically built and operated. The installation includes several input stations above a prestressed concrete pressure vessel, and charging hatch blocks positioned on top of the prestressed concrete pressure vessel. The blocks include selectors through which the pebble-shaped operating elements, after traversing helical and meandering charging conduits, reach into the reactor core. The selectors and charging conduits are installed within armored ducts which penetrate the prestressed concrete pressure vessel. Similar armored ducts are provided for exit ducts for withdrawal of pebbles from the core, and a first common exit hatch block is connected to the exit ducts. The block is arranged within foundation walls which support the prestressed concrete pressure vessel. A second exit hatch block, which is connected to the first exit hatch block by a shielded exit hatch channel, is provided in a reactor protection building. The withdrawal station is arranged in a reactor auxiliary building and connected to the shielded exit hatch channel.

    摘要翻译: 中等功率,高温卵石床核反应堆,包括引入和撤出操作元件的手段。 该装置的设置方式可以更经济地构建和操作。 该安装包括预应力混凝土压力容器上方的多个输入站,以及位于预应力混凝土压力容器顶部的充填舱口。 这些块包括选择器,通过该选择器,卵石形操作元件在穿过螺旋和曲折的充电导管之后到达反应堆芯。 选择器和充电管道安装在穿过预应力混凝土压力容器的铠装管道内。 为出口导管提供类似的装甲管,用于从芯中取出卵石,第一公共出口舱口与出口管连接。 该块被布置在支撑预应力混凝土压力容器的基础壁内。 在反应堆保护建筑物中提供了第二出口舱口盖,其通过屏蔽的出口舱口通道连接到第一出口舱口。 撤离站设置在反应堆辅助建筑物中,并连接到屏蔽出口舱口通道。

    Shutdown of a high temperature reactor
    2.
    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。

    Nuclear reactor plant
    3.
    发明授权
    Nuclear reactor plant 失效
    核反应堆厂

    公开(公告)号:US4789519A

    公开(公告)日:1988-12-06

    申请号:US914536

    申请日:1986-10-01

    CPC分类号: G21C1/322 G21C1/07 Y02E30/36

    摘要: In a nuclear reactor installation with a small high temperature reactor (26) all of the components of the primary loop, together with the control and shutdown installations (82, 92, 114, 116; 194, 198, 200) are located inside a steel pressure vessel (16) and may be installed and dismantled from above. This makes an economical subterranean construction possible.

    摘要翻译: 在具有小型高温反应堆(26)的核反应堆装置中,主回路的所有部件与控制和关闭装置(82,92,114,116; 194,198,200)位于钢内 压力容器(16),并可以从上面安装和拆除。 这使得经济的地下构造成为可能。

    Having operating element charging and removal
    4.
    发明授权
    Having operating element charging and removal 失效
    操作元件充电和取出

    公开(公告)号:US4863674A

    公开(公告)日:1989-09-05

    申请号:US230881

    申请日:1988-08-11

    IPC分类号: G21C1/12 G21C19/20 G21F5/008

    CPC分类号: G21F5/008 G21C19/202

    摘要: A nuclear reactor installation with a simple configuration includes a transport container which may be placed on the cover of the cavity. The transport container bottom overlaps the cover access opening. A vertical displaceable pebble conveyor line extends from the pebble pile surface to the transport container interior. A blower is located between the transport container and the reactor. The blower suction line is connected to the transport container interior and the blower pressure line leads into the reactor vessel.

    摘要翻译: 具有简单构造的核反应堆装置包括可以放置在空腔的盖上的运输容器。 运输集装箱底部与盖进入口重叠。 垂直的可移动的卵石输送线从卵石桩表面延伸到运输容器内部。 鼓风机位于运输集装箱和反应堆之间。 鼓风机吸入管线连接到运输容器内部,鼓风机压力管线通入反应堆容器。

    Apparatus for the shutdown of a high temperature nuclear reactor
    5.
    发明授权
    Apparatus for the shutdown of a high temperature nuclear reactor 失效
    用于关闭高温核反应堆的装置

    公开(公告)号:US4917855A

    公开(公告)日:1990-04-17

    申请号:US155130

    申请日:1988-02-11

    摘要: A shutdown system for a high temperature nuclear reactor where absorber material elements in the form of balls pass from an elevated reservoir into a vertical channel formed by aligned vertical cavities in horizontal, nose-shaped projections from the side reflector. The balls are transported back to the reservoir by way of a conveyor device. It must be insured that even in the case of accidents the absorber balls arrive in the cavities and that a rapid return of the absorber balls into the reservoir takes place. For the purpose, the reservoir is provided with an automatically-actuated and controllable device for releasing an opening between the reservoir and the vertical channel feed line. Below the channel is a removal tube terminating in a housing and arranged to form a pile of the absorber balls which seals the removal tube. To return the absorber balls, a metering gas acts on the pile and brings the absorber balls to a carrier gas. The carrier gas returns the absorber balls into the reservoir while the gaseous proporation of the carrier gas flow is returned for the reservoir into the pressure vessel.

    摘要翻译: 用于高温核反应堆的关闭系统,其中球形吸收材料元件从升高的储存器通过从侧反射器的水平的鼻形突起中由对准的垂直空腔形成的垂直通道。 球通过传送装置被运送回储存器。 必须保证,即使在事故的情况下,吸收器球到达空腔,并且发生吸收器球快速返回到储存器中。 为此,储存器设置有用于释放储存器和垂直通道进料管线之间的开口的自动致动和可控制的装置。 通道下面是一个终止于外壳中的移除管,并且被布置成形成一堆密封去除管的吸收器球。 为了返回吸收器球,计量气体作用在桩上并将吸收球带入载气中。 载体气体将吸收器返回到储存器中,同时将载气流的气体排出物返回到储存器进入压力容器。

    Inspection device with television camera for nuclear installations
    6.
    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。

    Driving apparatus for an absorber rod
    7.
    发明授权
    Driving apparatus for an absorber rod 失效
    吸收杆驱动装置

    公开(公告)号:US4219384A

    公开(公告)日:1980-08-26

    申请号:US848603

    申请日:1977-11-04

    IPC分类号: G21C7/14

    摘要: A driving apparatus for raising and lowering an absorber rod within a nuclear reactor pressure vessel. The apparatus comprises a driving system which includes a motor-driven flexible support member that is connected to the absorber rod through both a coupling element and a connecting element, and a storage means for storing any excess length of flexible support member. Both the driving system and the storage means are detachably enclosed within a desired gaseous environment that is isolated from the interior of the pressure vessel by a screening plug having a passageway therein through which the connecting element is disposed for movement between an upper end position and a lower end position.

    摘要翻译: 一种用于升高和降低核反应堆压力容器内的吸收杆的驱动装置。 该装置包括驱动系统,其包括通过耦合元件和连接元件连接到吸收器杆的电机驱动的柔性支撑构件,以及用于存储任何多余的柔性支撑构件的存储装置。 驱动系统和存储装置都可拆卸地封闭在期望的气体环境中,所述气体环境通过其中具有通道的筛网塞与压力容器的内部隔离,通过该通孔设置连接元件以在上端位置和 下端位置