Process for loading the reactor cavity of a nuclear reactor
    1.
    发明授权
    Process for loading the reactor cavity of a nuclear reactor 失效
    用于装载核反应堆的反应器腔的方法

    公开(公告)号:US4356145A

    公开(公告)日:1982-10-26

    申请号:US157383

    申请日:1980-06-09

    CPC classification number: G21C19/202 G21C1/07 Y02E30/36

    Abstract: Disclosed is a process for reloading the contaminated empty reactor cavity of a nuclear reactor with spherical operating elements forming the core of a high temperature reactor comprising supplying the operating elements to the reactor cavity first through a central loading tube in the roof reflector of the nuclear reactor to a predetermined load level, the loading tube being extended at the onset of the loading process toward the floor reflector and being adjusted upwardly during continued loading with the rising load level and after reaching the predetermined load level, supplying further operating elements through a plurality of auxiliary loading tubes in the roof reflector of the nuclear reactor in concentric circles about the central loading tube with the loading sequence proceeding circle after circle beginning with the circle closest to the central loading tube.

    Abstract translation: 公开了一种用于将形成高温反应堆核心的球形操作元件重新装载在核反应堆的受污染的空反应堆空腔的方法,包括首先通过核反应堆的反射器的中心加载管将操作元件提供给反应器空腔 加载管在加载过程开始时朝着地板反射器延伸,并且在上升负载水平的持续加载期间向上调节并且在达到预定负载水平之后,通过多个 辅助加载管在核反应堆的屋顶反射器中,围绕中央加载管以同心圆为中心,加载顺序循环,圆从最接近中央加载管的圆开始。

    Control rod arrangement for gas-cooled nuclear reactor
    3.
    发明授权
    Control rod arrangement for gas-cooled nuclear reactor 失效
    气冷式核反应堆的控制杆装置

    公开(公告)号:US3997392A

    公开(公告)日:1976-12-14

    申请号:US627745

    申请日:1975-10-31

    Abstract: The core pile of a gas-cooled nuclear reactor is controlled by a plurality of absorbent graphite rods that are inserted into the pile according to a pre-determined pattern, the pattern being such that the density of distribution of the control rods over the cross-sectional area of the core pile is radially increased in the direction of the core periphery. By this control rod arrangement an overly severe concentration in the flow of neutrons on the periphery of the cord pile is avoided, and a more even distribution of neutron flow across the diameter of the reactor is obtained.

    Abstract translation: 气冷式核反应堆的核心堆由多个吸收性石墨棒控制,吸收石墨棒根据预定图案插入桩中,该图案使控制棒在横截面上的分布密度, 芯堆的横截面积在芯周的方向上径向增大。 通过该控制杆装置,可以避免在绳索桩周围的中子流过度集中,并且获得跨过反应器直径的更均匀的中子流分布。

    Shutdown of a high temperature reactor
    4.
    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

    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。

    Process and apparatus for shutdown and control of a gas-cooled nuclear
reactor
    5.
    发明授权
    Process and apparatus for shutdown and control of a gas-cooled nuclear reactor 失效
    用于关闭和控制气冷式核反应堆的方法和装置

    公开(公告)号:US4148685A

    公开(公告)日:1979-04-10

    申请号:US780046

    申请日:1977-03-22

    Abstract: Disclosed are a method and apparatus for regulating and shutting down a gas cooled nuclear reactor having a bed of spherical fuel elements, wherein regulation of the reactor is accomplished by a first set of absorber rods in the side reflector of the reactor, partial shutdown is achieved by a second set of absorber rods movable in the top reflector and in the space above the fuel elements, and total shutdown is accomplished by a third independent set of absorber rods which can be moved downwardly into the fuel elements.

    Abstract translation: 公开了一种用于调节和关闭具有球形燃料元件床的气体冷却核反应堆的方法和装置,其中反应器的调节由反应器的侧反射器中的第一组吸收棒实现,实现部分关闭 通过可在顶部反射器中和在燃料元件上方的空间中移动的第二组吸收器杆,并且通过可以向下移动到燃料元件中的第三独立的吸收杆组完成关闭。

Patent Agency Ranking