公开(公告)号：US20080130817A1

公开(公告)日：2008-06-05

申请号：US11748293

申请日：2007-05-14

申请人： Kelvin Tashiro ,  John H. Sedo ,  Mario Ng

发明人： Kelvin Tashiro ,  John H. Sedo ,  Mario Ng

IPC分类号： G21C17/017

CPC分类号： G21C17/017 ,  G01N27/041

摘要： An apparatus and method for measuring terminal solid solubility in materials capable of forming hydrides, such as reactor pressure tubes. An inspection device is positioned within the reactor pressure tube under test and a pair of annular seals are radially deployed to seal a section of the pressure tube. Any water within the sealed section is displaced through the injection of gas and the heating of the sealed section to dry the tube and the device. A probe assembly on the device is deployed to contact the interior surface of the pressure tube and measure resistivity changes in the pressure tube wall as a function of temperature. The probe assembly includes a thermocouple probe for measuring temperature and transmit and receive coils for inducing eddy currents within the pressure tube wall. The pressure tube is allowed to cool at a predetermined rate, is reheated at a predetermined rate, and is allowed to cool again. Discontinuities within the temperature coefficient of resistivity indicate terminal solid solubility temperatures of precipitation or dissolution, which may be used to determine the hydrogen concentration of the sealed section of reactor pressure tube.

摘要翻译： 用于测量能够形成氢化物的材料中的终端固体溶解度的装置和方法，例如反应器压力管。 检查装置位于待测试的反应器压力管内，并且一对环形密封件径向展开以密封压力管的一部分。 密封部分内的任何水通过注入气体和密封部分的加热而移动，以干燥管子和装置。 器件上的探头组件被部署以接触压力管的内表面并且测量压力管壁中的电阻率变化作为温度的函数。 探头组件包括用于测量温度的热电偶探头，以及用于在压力管壁内感应涡流的发射和接收线圈。 允许压力管以预定速率冷却，以预定速率再加热，并再次冷却。 电阻温度系数间的不连续性表示沉淀或溶解的终端固体溶解温度，可用于确定反应堆压力管密封段的氢浓度。

公开(公告)号：US20050220252A1

公开(公告)日：2005-10-06

申请号：US10995085

申请日：2004-11-22

申请人： Kelvin Tashiro ,  John Sedo ,  Mario Ng

发明人： Kelvin Tashiro ,  John Sedo ,  Mario Ng

IPC分类号： F17C11/00 ,  G01N27/04

CPC分类号： G21C17/017 ,  G01N27/041 ,  G21Y2002/201 ,  G21Y2002/204 ,  G21Y2002/304 ,  G21Y2002/401 ,  G21Y2002/501 ,  G21Y2002/502 ,  G21Y2004/30 ,  G21Y2004/40

摘要： An apparatus and method for measuring terminal solid solubility in materials capable of forming hydrides, such as reactor pressure tubes. An inspection device is positioned within the reactor pressure tube under test and a pair of annular seals are radially deployed to seal a section of the pressure tube. Any water within the sealed section is displaced through the injection of gas and the heating of the sealed section to dry the tube and the device. A probe assembly on the device is deployed to contact the interior surface of the pressure tube and measure resistivity changes in the pressure tube wall as a function of temperature. The probe assembly includes a thermocouple probe for measuring temperature and transmit and receive coils for inducing eddy currents within the pressure tube wall. The pressure tube is allowed to cool at a predetermined rate, is reheated at a predetermined rate, and is allowed to cool again. Discontinuities within the temperature coefficient of resistivity indicate terminal solid solubility temperatures of precipitation or dissolution, which may be used to determine the hydrogen concentration of the sealed section of reactor pressure tube.

摘要翻译： 用于测量能够形成氢化物的材料中的终端固体溶解度的装置和方法，例如反应器压力管。 检查装置位于待测试的反应器压力管内，并且一对环形密封件径向展开以密封压力管的一部分。 密封部分内的任何水通过注入气体和密封部分的加热而移动，以干燥管子和装置。 器件上的探头组件被部署以接触压力管的内表面并且测量压力管壁中的电阻率变化作为温度的函数。 探头组件包括用于测量温度的热电偶探头，以及用于在压力管壁内感应涡流的发射和接收线圈。 允许压力管以预定速率冷却，以预定速率再加热，并再次冷却。 电阻温度系数间的不连续性表示沉淀或溶解的终端固体溶解温度，可用于确定反应堆压力管密封段的氢浓度。

公开(公告)号：US07563022B2

公开(公告)日：2009-07-21

申请号：US10995085

申请日：2004-11-22

申请人： Kelvin Tashiro ,  John H. Sedo ,  Mario Ng

发明人： Kelvin Tashiro ,  John H. Sedo ,  Mario Ng

IPC分类号： G01K1/10 ,  G01K13/04 ,  G01K7/02 ,  G01N25/00 ,  G01N25/18

CPC分类号： G21C17/017 ,  G01N27/041 ,  G21Y2002/201 ,  G21Y2002/204 ,  G21Y2002/304 ,  G21Y2002/401 ,  G21Y2002/501 ,  G21Y2002/502 ,  G21Y2004/30 ,  G21Y2004/40

摘要： An apparatus and method for determining terminal solid solubility temperature in materials capable of forming hydrides, such as reactor pressure tubes. An inspection device is positioned within the reactor pressure tube under test and a pair of annular seals are radially deployed to seal a section of the pressure tube. Any water within the sealed section is displaced through the injection of gas and the heating of the sealed section to dry the tube and the device. A probe assembly on the device is deployed to contact the interior surface of the pressure tube and measure resistivity changes in the pressure tube wall as a function of temperature. The probe assembly includes a thermocouple probe for measuring temperature and transmit and receive coils for inducing eddy currents within the pressure tube wall. The pressure tube is allowed to cool at a predetermined rate, is reheated at a predetermined rate, and is allowed to cool again. Discontinuities within the temperature coefficient of resistivity indicate terminal solid solubility temperatures of precipitation or dissolution, which may be used to determine the hydrogen concentration of the sealed section of reactor pressure tube.

摘要翻译： 用于确定能够形成氢化物的材料中的终端固体溶解温度的装置和方法，例如反应器压力管。 检查装置位于待测试的反应器压力管内，并且一对环形密封件径向展开以密封压力管的一部分。 密封部分内的任何水通过注入气体和密封部分的加热而移动，以干燥管子和装置。 器件上的探头组件被部署以接触压力管的内表面并且测量压力管壁中的电阻率变化作为温度的函数。 探头组件包括用于测量温度的热电偶探头，以及用于在压力管壁内感应涡流的发射和接收线圈。 允许压力管以预定速率冷却，以预定速率再加热，并再次冷却。 电阻温度系数间的不连续性表示沉淀或溶解的终端固体溶解温度，可用于确定反应堆压力管密封段的氢浓度。