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121 条记录 (耗时 0.012 秒)

    Thermally activated trigger device
    11.
    发明授权
    Thermally activated trigger device 失效
    热启动触发装置

    公开(公告)号：US4762662A

    公开(公告)日：1988-08-09

    申请号：US793501

    申请日：1985-10-31

    申请人： Richard B. Harty ,  Timothy L. Camaret

    发明人： Richard B. Harty ,  Timothy L. Camaret

    IPC分类号： G21C7/00 ,  F16K17/38 ,  G21C9/02 ,  G21C9/033 ,  G21C7/28

    CPC分类号： G21C9/02 ,  F16K17/38 ,  F16K17/383 ,  Y02E30/40 ,  Y10S376/909 ,  Y10T137/1797

    摘要： A thermally activated trigger device 10 comprises a pressurized closed vessel 11 with a piston 12 slideably mounted in it to divide it into two compartments 14 and 16. A fluid such as an inert gas is contained within the compartments at substantially the same pressure. One end of one of the compartments has venting means 24, such as a normally closed pipe which vents the fluid from the compartment once the pipe becomes open by rupture or melting at an elevated temperature. The resulting pressure difference between the compartments on venting of the fluid moves the piston which is connected to an actuator means for performing a desired control or safety shut-down function. The trigger device is useful for performing many control and safety shut-down functions, particularly for rendering a nuclear space reactor subcritical upon reentry to the earth's atmosphere.

    摘要翻译： 热活化触发装置10包括加压密闭容器11，活塞12可滑动地安装在其中以将其分成两个隔室14和16.在基本上相同的压力下，隔室内容纳诸如惰性气体的流体。 一个隔室的一端具有通风装置24，例如常闭管，一旦管道通过断裂或在升高的温度下熔化而使管道开放，则将其从隔室排出。 在流体排出之间的隔室之间产生的压力差移动连接到致动器装置的活塞，以执行期望的控制或安全关闭功能。 触发装置对于执行许多控制和安全关闭功能是有用的，特别是在重新进入地球大气层时使核空间反应堆亚临界。

    Nuclear reactor shutdown control rod assembly
    12.
    发明授权
    Nuclear reactor shutdown control rod assembly 失效
    核反应堆关闭控制棒总成

    公开(公告)号：US4734252A

    公开(公告)日：1988-03-29

    申请号：US894224

    申请日：1986-08-07

    申请人： Konstantin Bilibin

    发明人： Konstantin Bilibin

    IPC分类号： G21C7/12 ,  G21C9/02

    CPC分类号： G21C9/02 ,  G21C7/12 ,  G21Y2002/201 ,  G21Y2002/301 ,  G21Y2004/305 ,  G21Y2004/401 ,  Y02E30/39 ,  Y10T403/599 ,  Y10T403/602

    摘要： A temperature responsive, self-actuated nuclear reactor shutdown control rod assembly 10. The upper end 18 of a lower drive line 17 fits within the lower end of an upper drive line 12. The lower end (not shown) of the lower drive line 17 is connected to a neutron absorber. During normal temperature conditions the lower drive line 17 is supported by detent means 22,26. When an overtemperature condition occurs thermal actuation means 34 urges ring 26 upwardly sufficiently to allow balls 22 to move radially outwardly thereby allowing lower drive line 17 to move downwardly toward the core of the nuclear reactor resulting in automatic reduction of the reactor powder.

    摘要翻译： 一个温度敏感的，自动致动的核反应堆关闭控制棒组件10.下驱动线17的上端18装配在上驱动线12的下端内。下驱动线17的下端（未示出） 连接到中子吸收器。 在正常温度条件下，下驱动线17由制动装置22,26支撑。 当过热状态发生时，热致动装置34向上推动环26向上充分地允许球22径向向外移动，从而允许下驱动线17朝向核反应堆的核心向下移动，导致反应堆粉末的自动还原。

    Control rod velocity limiter
    13.
    发明授权
    Control rod velocity limiter 失效
    控制杆速度限制器

    公开(公告)号：US4624826A

    公开(公告)日：1986-11-25

    申请号：US646761

    申请日：1984-09-04

    申请人： James E. Cearley ,  John C. Carruth ,  Robert C. Dixon ,  Stephanie S. Spencer ,  Jaime A. Zuloaga, Jr.

    发明人： James E. Cearley ,  John C. Carruth ,  Robert C. Dixon ,  Stephanie S. Spencer ,  Jaime A. Zuloaga, Jr.

    IPC分类号： G21C7/113 ,  G21C7/16 ,  G21C9/02 ,  G21C7/20 ,  F16F9/00

    CPC分类号： G21C9/02 ,  G21C7/16 ,  G21Y2002/201 ,  G21Y2004/30 ,  G21Y2004/305 ,  Y02E30/39

    摘要： A velocity limiting device providing greater resistance to motion through a fluid in one direction than in the opposite direction. The device includes a toroidally shaped control member having a smooth generally conical surface on one side for low resistance movement through the fluid in the one direction. On its opposite side the control member is formed with at least one groove providing a concave surface spaced from which is an arrangement of vanes forming a jet for directing a stream of fluid into the groove upon movement in the opposite direction whereby the resultant increase in fluid turbulence increases resistance to rapid movement in this opposite direction.

    摘要翻译： 速度限制装置在一个方向上提供比在相反方向更大的阻力通过流体的阻力。 该装置包括环形控制构件，其在一侧具有平滑的大致圆锥形的表面，用于在一个方向上通过流体的低阻力运动。 在其相反侧，控制构件形成有至少一个凹槽，其提供间隔开的凹形表面，所述凹形表面是形成喷嘴的叶片布置，用于在相反方向上移动时将流体流引导到凹槽中，由此导致流体的增加 湍流增加了在相反方向快速运动的阻力。

    Control rod drive
    14.
    发明授权
    Control rod drive 失效
    控制杆驱动

    公开(公告)号：US4587084A

    公开(公告)日：1986-05-06

    申请号：US526349

    申请日：1983-08-24

    申请人： Basil C. Hawke

    发明人： Basil C. Hawke

    IPC分类号： G21C7/14 ,  G21C7/12 ,  G21C9/02

    CPC分类号： G21C9/02 ,  G21C7/12 ,  G21Y2002/104 ,  G21Y2002/206 ,  G21Y2004/30 ,  G21Y2004/402 ,  Y02E30/39

    摘要： A control rod drive uses gravitational forces to insert one or more control rods upwardly into a reactor core from beneath the reactor core under emergency conditions. The preferred control rod drive includes a vertically movable weight and a mechanism operatively associating the weight with the control rod so that downward movement of the weight is translated into upward movement of the control rod. The preferred control rod drive further includes an electric motor for driving the control rods under normal conditions, an electrically actuated clutch which automatically disengages the motor during a power failure and a decelerator for bringing the control rod to a controlled stop when it is inserted under emergency conditions into a reactor core.

    摘要翻译： 控制棒驱动器在紧急情况下使用重力将一个或多个控制杆从反应堆堆芯下方向上插入反应堆堆芯。 优选的控制杆驱动器包括可垂直移动的重物和将重物与控制杆可操作地相关联的机构，使得重物的向下运动被转换成控制杆的向上运动。 优选的控制棒驱动器还包括用于在正常状态下驱动控制杆的电动马达，在电源故障期间自动脱开马达的电动离合器和用于在控制杆插入紧急情况下使控制杆处于受控停止状态的减速器 条件进入反应堆堆芯。