Method of stress corrosion cracking mitigation for nuclear power plant structural materials
    1.
    发明申请
    Method of stress corrosion cracking mitigation for nuclear power plant structural materials 有权
    核电厂结构材料应力腐蚀开裂缓解方法

    公开(公告)号:US20080292042A1

    公开(公告)日:2008-11-27

    申请号:US12213316

    申请日:2008-06-18

    IPC分类号: G21C15/00

    CPC分类号: G21C17/0225

    摘要: The object of this invention is to provide a method for mitigating a stress corrosion cracking of reactor structural material which makes it possible to suppress the rise in the main steam line dose rate without secondary effects such as a rise in the concentration of radioactive cobalt-60, etc. in the reactor water. Hydrogen and a reductive nitrogen compound containing nitrogen having a negative oxidation number (for example, hydrazine) are injected into the core water of boiling water nuclear power plant. By injecting the reductive nitrogen compound containing nitrogen having a negative oxidation number into the core water, the stress corrosion cracking of structural material of reactor can be mitigated without side reactions such as a rise in the concentration of cobalt-60, etc.

    摘要翻译: 本发明的目的是提供一种减轻反应堆结构材料的应力腐蚀开裂的方法,其可以抑制主蒸汽管线剂量率的上升而没有二次效应,例如放射性钴-60浓度的升高 等等在反应堆水中。 将氢和含有负氧化数的氮(例如肼)的还原氮化合物注入沸水核电厂的核心水中。 通过将含有负氧化数的氮的还原性氮化合物注入芯水中,可以缓解反应器结构材料的应力腐蚀开裂,而不会发生诸如钴-60等的浓度升高的副反应。

    Method of stress corrosion cracking mitigation for nuclear power plant structural materials
    2.
    发明申请
    Method of stress corrosion cracking mitigation for nuclear power plant structural materials 审中-公开
    核电厂结构材料应力腐蚀开裂缓解方法

    公开(公告)号:US20050018805A1

    公开(公告)日:2005-01-27

    申请号:US10896092

    申请日:2004-07-22

    IPC分类号: G21D3/08 G21C17/00 G21D1/00

    CPC分类号: G21C17/0225

    摘要: The object of this invention is to provide a method for mitigating a stress corrosion cracking of reactor structural material which makes it possible to suppress the rise in the main steam line dose rate without secondary effects such as a rise in the concentration of radioactive cobalt-60, etc. in the reactor water. Hydrogen and a reductive nitrogen compound containing nitrogen having a negative oxidation number (for example, hydrazine) are injected into the core water of boiling water nuclear power plant. By injecting the reductive nitrogen compound containing nitrogen having a negative oxidation number into the core water, the stress corrosion cracking of structural material of reactor can be mitigated without side reactions such as a rise in the concentration of cobalt-60, etc.

    摘要翻译: 本发明的目的是提供一种减轻反应堆结构材料的应力腐蚀开裂的方法,其可以抑制主蒸汽管线剂量率的上升而没有二次效应,例如放射性钴-60浓度的升高 等等在反应堆水中。 将氢和含有负氧化数的氮(例如肼)的还原氮化合物注入沸水核电厂的核心水中。 通过将含有负氧化数的氮的还原性氮化合物注入芯水中,可以缓解反应器结构材料的应力腐蚀开裂,而不会发生诸如钴-60等的浓度升高的副反应。

    Head-lamps
    3.
    发明授权
    Head-lamps 失效
    头灯

    公开(公告)号:US5107406A

    公开(公告)日:1992-04-21

    申请号:US557942

    申请日:1990-07-25

    IPC分类号: F21S8/10 B60Q1/068 F21V14/04

    摘要: A head-lamp having an adjuster construction comprising a pivot portion and an adjusting screw portion, in which a ball joint is provided for at least one of said portions, a part of a carrying surface of the ball joint being formed of a soft elastic member which extends into the region of the ball joint.

    摘要翻译: 一种具有调节器结构的头灯,包括枢轴部分和调节螺纹部分,其中为所述部分中的至少一个设置球窝接头,所述球形接头的承载表面的一部分由软弹性构件 其延伸到球窝接头的区域。

    Method and apparatus for analyzing the electrode inpedance
    4.
    发明授权
    Method and apparatus for analyzing the electrode inpedance 失效
    用于分析电极阻抗的方法和装置

    公开(公告)号:US4831324A

    公开(公告)日:1989-05-16

    申请号:US26258

    申请日:1987-03-16

    IPC分类号: G01N27/06 C23C14/56 G01R27/22

    CPC分类号: G01R27/22

    摘要: A method and apparatus for analyzing the electrode impedance, in which an a.c. voltage with its frequency varied at intervals is applied between a pair of measuring electrodes dipped in the sample liquid, the complex a.c. impedance between the electrodes is measured at each frequency, the maximum value among absolute values of imaginary part of the measured impedance values is detected as the electrode polarization resistance, and the solution resistance of the liquid is calculated by subtracting the detected maximum value from the real part of the impedance corresponding to the maximum imaginary part.

    摘要翻译: 一种用于分析电极阻抗的方法和装置,其中a。 其间的频率变化的电压施加在浸在样品液体中的一对测量电极之间,复合物a.c. 在每个频率处测量电极之间的阻抗,将测量的阻抗值的虚部的绝对值中的最大值作为电极极化电阻检测,并且通过从实际中减去检测到的最大值来计算液体的溶液电阻 阻抗的一部分对应于最大虚部。

    Method of stress corrosion cracking mitigation for nuclear power plant structural materials
    7.
    发明授权
    Method of stress corrosion cracking mitigation for nuclear power plant structural materials 有权
    核电厂结构材料应力腐蚀开裂缓解方法

    公开(公告)号:US07864914B2

    公开(公告)日:2011-01-04

    申请号:US12363905

    申请日:2009-02-02

    IPC分类号: G21C9/00

    CPC分类号: G21C17/0225

    摘要: The object of this invention is to provide a method for mitigating a stress corrosion cracking of reactor structural material which makes it possible to suppress the rise in the main steam line dose rate without secondary effects such as a rise in the concentration of radioactive cobalt-60, etc. in the reactor water. Hydrogen and a reductive nitrogen compound containing nitrogen having a negative oxidation number (for example, hydrazine) are injected into the core water of boiling water nuclear power plant. By injecting the reductive nitrogen compound containing nitrogen having a negative oxidation number into the core water, the stress corrosion cracking of structural material of reactor can be mitigated without side reactions such as a rise in the concentration of cobalt-60, etc.

    摘要翻译: 本发明的目的是提供一种减轻反应堆结构材料的应力腐蚀开裂的方法,其可以抑制主蒸汽管线剂量率的上升而没有二次效应,例如放射性钴-60浓度的升高 等等在反应堆水中。 将氢和含有负氧化数的氮(例如肼)的还原氮化合物注入沸水核电厂的核心水中。 通过将含有负氧化数的氮的还原性氮化合物注入芯水中,可以缓解反应器结构材料的应力腐蚀开裂,而不会发生诸如钴-60等的浓度升高的副反应。