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    Shutdown of a high temperature reactor
    1.
    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

    Applicant: Siegfried Brandes ,  Claus Elter ,  Hubert Handel ,  Dietrich Leithner ,  Hermann Schmitt ,  Josef Schoening

    Inventor： Siegfried Brandes ,  Claus Elter ,  Hubert Handel ,  Dietrich Leithner ,  Hermann Schmitt ,  Josef Schoening

    IPC: G21C1/07 ,  G21C5/04 ,  G21C7/107

    CPC classification number: G21C7/107 ,  G21C5/04 ,  G21Y2002/206 ,  G21Y2002/50 ,  G21Y2004/30 ,  Y02E30/39

    Abstract: 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.

    Abstract translation: 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。

    Gas cooled nuclear reactor with a pebble bed of spherical operating elements
    2.
    发明授权
    Gas cooled nuclear reactor with a pebble bed of spherical operating elements 失效
    具有球形操作元件卵石床的气冷核反应堆

    公开(公告)号：US5019322A

    公开(公告)日：1991-05-28

    申请号：US233980

    申请日：1988-08-19

    Applicant: Cornelia von Charzewski ,  Dietrich Leithner ,  Hermann Schmitt ,  Josef Schoening

    Inventor： Cornelia von Charzewski ,  Dietrich Leithner ,  Hermann Schmitt ,  Josef Schoening

    IPC: G21C1/07 ,  G21C7/34 ,  G21G4/02

    CPC classification number: G21G4/02 ,  G21C1/07 ,  G21C7/34 ,  Y02E30/33 ,  Y02E30/36 ,  Y02E30/39

    Abstract: A gas cooled nuclear reactor may have a stationary pile of spherical operating elements. The reactor may be controlled and shut down by absorber rods displaceable in channels of the side reflector. The neutron sources required for the safe start-up of such pellet pile reactors, which in the case of higher capacity pile reactors are installed in bores of the side reflector, are arranged in the stationary pile, where they are more effective and do not occupy positions in the side reflector. They may be located in one or more graphite elements having the same diameter as the operating elements. These elements may be introduced and removed into and from the core together with the operating elements and remain stationary in operation.

    Abstract translation: 气体冷却的核反应堆可能具有静止的球形操作元件。 反应器可以通过在侧反射器的通道中可移位的吸收器杆来控制和关闭。 安装起来的这种堆堆堆堆反应堆安全启动所需的中子源，在较高容量的堆堆反应堆的情况下安装在侧面反射器的孔中，被安排在固定桩中，它们更有效并且不占用 侧面反射器中的位置。 它们可以位于具有与操作元件相同直径的一个或多个石墨元件中。 这些元件可以与操作元件一起被引入和移出到芯中，并且在操作中保持静止。

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