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    TUBULAR PIPE FOR TRANSPORTING LIQUID SODIUM
    3.
    发明申请
    TUBULAR PIPE FOR TRANSPORTING LIQUID SODIUM 审中-公开
    用于运输液体钠的管状管

    公开(公告)号：US20120247566A1

    公开(公告)日：2012-10-04

    申请号：US13512393

    申请日：2010-11-30

    申请人： Mehdi Moussavi ,  Annalisa Ambroso

    发明人： Mehdi Moussavi ,  Annalisa Ambroso

    IPC分类号： F17D1/00 ,  F16L9/14

    CPC分类号： G21C17/002 ,  F16L9/14 ,  G01M3/045 ,  G21C17/017 ,  G21C17/0255 ,  Y02E60/34 ,  Y10T137/0318

    摘要： A tubular pipe (10) for transporting liquid sodium is suitable for inhibiting any leaks of sodium outside the pipe. The pipe includes a pipe body (20) covered on the inside with an inner layer which includes: a first continuous layer (40) made of ceramic or a metal or metal alloy, for being placed in contact with the liquid sodium carried by the tubular pipe; and between the pipe body and the first ceramic layer, an intermediate layer (50) made of a reactive material which, when the layer contacts the liquid sodium, the layer turns into a modified material which has separate electric conductivity from that of the reactive material.

    摘要翻译： 用于输送液体钠的管状管道（10）适于抑制管道外部的任何钠泄漏。 该管包括内侧覆盖有内层的管体（20），该内层包括：由陶瓷或金属或金属合金制成的第一连续层（40），用于与由管状物承载的液态钠接触 管; 并且在管体和第一陶瓷层之间，由反应性材料制成的中间层（50），当层与液体钠接触时，该层变成具有与反应性材料分开的导电性的改性材料 。

    Multiple-sheathed sodium leakage detection apparatus
    6.
    发明授权
    Multiple-sheathed sodium leakage detection apparatus 失效
    多护套钠泄漏检测装置

    公开(公告)号：US6067337A

    公开(公告)日：2000-05-23

    申请号：US111801

    申请日：1998-07-08

    申请人： Nobumi Ohyama

    发明人： Nobumi Ohyama

    IPC分类号： G01K13/02 ,  G01M3/04 ,  G21C17/02 ,  G21C17/025 ,  G21C17/00 ,  G01M3/08

    CPC分类号： G01M3/045 ,  G21C17/0255

    摘要： A multiple-sheathed sodium leakage detection apparatus capable of detecting a small amount of leakage of sodium due to a breakage of a well for temperature measurement at an early stage of the leakage. The apparatus is a combination of a multiple-sheathed sodium leakage detector having a sheathed thermocouple and sodium leakage detection element wires, which are disposed in an insulating material filled in a multiple sheath; a sodium leakage judgment device which judges whether or not there is a leakage of sodium by a signal from the multiple-sheathed sodium leakage detector; an alarm device which gives an alarm when it is judged that there is a leakage of sodium; and signal lines which connect these devices. The multiple-sheathed sodium leakage detector is designed in conformity to the sheath outer diameter so that it can be inserted into a well which has already been installed on an existing piping without changing the well.

    摘要翻译： 一种多套式的钠泄漏检测装置，其能够在泄漏的早期阶段检测由于用于温度测量的井的破裂而引起的钠的少量泄漏。 该装置是具有铠装热电偶和钠泄漏检测元件线的多护套钠泄漏检测器的组合，其设置在填充在多个护套中的绝缘材料中; 钠泄漏判定装置，其判断是否存在来自所述多层钠泄漏检测器的信号的钠泄漏; 当判断为钠泄漏时发出报警的报警装置; 以及连接这些设备的信号线。 该多护套钠泄漏检测器设计成符合护套外径，使其可以插入到已经安装在现有管道上的井中，而不改变井。

    Method for heat exchanger leak detection in a liquid metal cooled nuclear reactor
    7.
    发明授权
    Method for heat exchanger leak detection in a liquid metal cooled nuclear reactor 失效
    液态金属冷却核反应堆换热器泄漏检测方法

    公开(公告)号：UST955004I4

    公开(公告)日：1977-02-01

    申请号：US673563

    申请日：1976-04-05

    申请人： Robert K. Sayre

    发明人： Robert K. Sayre

    IPC分类号： G01M3/22 ,  G21C17/00 ,  G21C17/02 ,  G21C17/025

    CPC分类号： G21C17/002 ,  G01M3/228 ,  G21C17/0255

    摘要： An on-line method for early detection of a leak through a tube of a liquid metal-to-water tube type heat exchanger in a liquid metal cooled nuclear reactor system. Introducing helium to the heat exchanger feedwater exposes the helium to any heat exchanger leak locations, and the helium will diffuse or flow through the leak location into the liquid metal. An increase in the helium content of the liquid metal evidences the existence of a leak. The content of helium in the liquid metal can be detected either by direct analysis of the reactor cover gas in a dual cycle reactor plant, or by removing a coolant sample from the reactor system downstream of the heat exchanger in a dual or triple cycle plant, separating the gaseous content of the sample, and analyzing the gaseous content for helium. The properties of helium are such that the invention method may result in identification of a tube leak before any water and liquid metal actually come in contact.