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    System for krypton-xenon concentration, separation and measurement for rapid detection of defective nuclear fuel bundles
    5.
    发明授权
    System for krypton-xenon concentration, separation and measurement for rapid detection of defective nuclear fuel bundles 失效
    用于氪 - 氙浓度的系统，用于快速检测有缺陷的核燃料束的分离和测量

    公开(公告)号：US5457720A

    公开(公告)日：1995-10-10

    申请号：US228526

    申请日：1994-04-15

    申请人： Dane T. Snyder ,  Raymond L. Armstrong

    发明人： Dane T. Snyder ,  Raymond L. Armstrong

    IPC分类号： G01N25/18 ,  B01D15/08 ,  B01D53/04 ,  G01N27/18 ,  G01N30/02 ,  G01N30/12 ,  G01N30/62 ,  G01N30/66 ,  G01N30/78 ,  G01T1/167 ,  G01T7/02 ,  G21C17/07 ,  G21C17/00

    CPC分类号： G01N30/62 ,  G21C17/07 ,  G01N2030/025 ,  G01N2030/121 ,  G01N2030/626 ,  G01N2030/77 ,  G01N30/66 ,  G01N30/78 ,  G21Y2002/202 ,  G21Y2004/30 ,  G21Y2004/40

    摘要： A process and system for the rapid concentration, separation and measurement of Kr-85 and Xe-133. By measuring the amount of Kr-85 radioisotope which is present, false positive signals for the vacuum sipping process can be eliminated. The fission gases are trapped by passing the recirculating gas stream through an adsorbing media. During this process, a known mixture of nonradioactive krypton and xenon is added to the gas stream which enters a thermal conductivity (TC) detector to calibrate the latter. The trapped gases are desorbed and injected into the inlet of a separating column. The column discharges into the TC detector. The TC detector discharge is diverted for counting to an evacuated beta detector chamber during the time that krypton is sensed by the TC detector. Any minute amount of Kr-85 is captured in the chamber, free of Xe-133. The detector discharge is diverted for counting to another evacuated beta detector chamber during the time that xenon is sensed by the TC detector. Any minute amount of Xe-133 is captured in the chamber, free of Kr-85.

    摘要翻译： 用于快速浓缩，分离和测量Kr-85和Xe-133的方法和系统。 通过测量存在的Kr-85放射性同位素的量，可以消除真空吸收过程的假阳性信号。 裂解气体通过使再循环气流通过吸附介质而被捕获。 在此过程中，将已知的非放射性氪和氙混合物加入到进入热导率（TC）检测器以校准后者的气流中。 被捕获的气体被解吸并注入分离塔的入口。 该列排放到TC检测器中。 TC检测器放电在TC检测器感测氪时间内转向计数到抽空的β检测器室。 在室内捕获任何微量的Kr-85，不含Xe-133。 在TC检测器感测到氙时，检测器放电被转移到另一个抽空的β检测器室。 在室内捕获少量的Xe-133，不含Kr-85。

    Particle separation system
    6.
    发明授权
    Particle separation system 失效
    粒子分离系统

    公开(公告)号：US4913803A

    公开(公告)日：1990-04-03

    申请号：US178529

    申请日：1988-04-07

    申请人： Jerome E. Earls ,  Dane T. Snyder

    发明人： Jerome E. Earls ,  Dane T. Snyder

    IPC分类号： B07B1/28 ,  B01J8/20 ,  B01J47/04 ,  B01J49/00 ,  B03B5/62 ,  B03B7/00

    CPC分类号： B03B7/00 ,  B01J47/04 ,  B01J49/0043 ,  B03B5/623

    摘要： A mixture of two sets of similarly sized particles having different terminal velocities in a separation liquid is separated. This is done by removing either the smaller particle portion of the set having the greater terminal velocity, or the larger particle portion of the set having the lesser terminal velocity, or both, for example, by sieving. The resulting mixture is introduced into a tube in which the separation liquid is flowing upwardly. This eliminates intermixing of the fines of one set with the larger particles of the other set. The flow of liquid in the tube can be arranged to provide laminar flow separated by two regions of turbulent flow to improve separation of particles. Anion and cation exchange resin particles can be separated in this manner, regenerated and returned to service.

    摘要翻译： 分离在分离液体中具有不同末端速度的两组相似尺寸的颗粒的混合物。 这通过例如通过筛分除去具有较大终端速度的组的较小颗粒部分或具有较小终端速度的组的较大颗粒部分或两者来完成。 将所得混合物引入其中分离液体向上流动的管中。 这消除了一组的细粒与另一组的较大颗粒的混合。 管中的液体流可以布置成提供由两个湍流区域分离的层流，以改善颗粒的分离。 阴离子和阳离子交换树脂颗粒可以以这种方式分离，再生并返回使用。