公开(公告)号：EP0591802A3

公开(公告)日：1994-06-08

申请号：EP93115546.9

申请日：1993-09-27

申请人： HITACHI, LTD.

发明人： Yamauchi, Hiroshi ,  Sakai, Masanori ,  Mabuchi, Katsumi ,  Takahashi, Takuya ,  Ohnaka, Noriyuki ,  Hattori, Shigeo

IPC分类号： G01N17/02

CPC分类号： B82Y15/00 ,  G01N17/02 ,  Y10S977/852

摘要： A corrosion degree measuring method capable of field measurement for intergranular corrosion, particularly the sensitization degree, of the plant's structural materials in a narrow space. The metal electrode (24) made of a material being measured and the counter electrode (17) to the metal electrode are immersed in an electrolytic solution. A voltage is applied to the metal electrode (24) in the anodic direction so as to raise the potential of the metal electrode (24) up to the passive state potential and to keep the metal electrode (24) at the passive state potential. The passive state potential is used as a reference potential, and a pulse-like potential signal is applied to the metal electrode in the cathodic direction. At the time of the application of the pulse potential signal, a current between the metal electrode (24) and the counter electrode (17) is measured, and the corrosion degree of the material being measured is determined from the intensity of the current.

摘要翻译： 一种腐蚀度测量方法，能够在狭窄的空间内对植物的结构材料进行晶间腐蚀，特别是致敏程度的现场测量。 将由测量材料制成的金属电极（24）和与金属电极相对的对电极（17）浸入电解液中。 在阳极方向上向金属电极（24）施加电压，使金属电极（24）的电位升高到被动状态，并使金属电极（24）保持在被动状态。 被动状态电位用作参考电位，并且在阴极方向上向金属电极施加脉冲状电位信号。 在施加脉冲电位信号时，测量金属电极（24）和对电极（17）之间的电流，并根据电流强度确定被测量材料的腐蚀程度。

公开(公告)号：EP0320019A2

公开(公告)日：1989-06-14

申请号：EP88120719.5

申请日：1988-12-12

申请人： HITACHI, LTD.

发明人： Sakai, Masanori ,  Ohsumi, Katsumi ,  Ohnaka, Noriyuki ,  Kikuchi, Eiji ,  Mabuchi, Katsumi ,  Takahashi, Takuya

IPC分类号： G01N27/42

CPC分类号： G01N27/42 ,  Y10T436/206664

摘要： This invention comprises electrochemical analytical devices (2) capable of performing electrolysis in multiple pulse modes. It relates to a method of quantitative analysis and equipment for performing quantitative analysis which uses a combination of these pulse modes to realize the measurement of concentrations of multiple substances to be measured, occurring in the test solution to be measured and also a nuclear reactor(1) water quality control system employing such a quantitative analysis method.

摘要翻译： 本发明包括电化学分析装置（2），其能够在多个脉冲模式进行电解的。 它涉及一种用于执行其中采用的合成脉冲模式的组合来实现的多个物质的浓度的测量待测量的定量分析，在测试溶液中发生的定量分析和设备的方法，要被测量，因此核反应器（1 ）水质量控制系统用人求定量分析方法。

公开(公告)号：EP0320019B1

公开(公告)日：1996-03-06

申请号：EP88120719.5

申请日：1988-12-12

申请人： HITACHI, LTD.

发明人： Sakai, Masanori ,  Ohsumi, Katsumi ,  Ohnaka, Noriyuki ,  Kikuchi, Eiji ,  Mabuchi, Katsumi ,  Takahashi, Takuya

IPC分类号： G01N27/42

CPC分类号： G01N27/42 ,  Y10T436/206664

公开(公告)号：EP0661538A2

公开(公告)日：1995-07-05

申请号：EP94120119.6

申请日：1994-12-19

申请人： HITACHI, LTD.

发明人： Sakai, Masanori ,  Ohnaka, Noriyuki ,  Takahashi, Takuya ,  Yamauchi, Hiroshi

IPC分类号： G01N33/20 ,  G01N17/02 ,  G21C17/022

CPC分类号： G21C17/022 ,  G01N17/02 ,  G21C17/0225 ,  G21Y2002/204 ,  G21Y2004/401

摘要： A system for monitoring the operation of a plant, which includes the facility of simulating the corrosion potential of a material and which can assess the effect of a countermeasure for mitigating the corrosion environment of the material, with the corrosion potential obtained by the simulation. The corrosion potential of the structural material of the plant is computed through a numerical analysis by applying an electrochemical mixed-potential theorem on the basis of the analytical result of a charge transfer reaction. Programs for such potential computations are prestored in a computer system from which data are accepted into a host computer (40 in Fig. 7). The computed corrosion potential is related with water quality data (for example, the concentration of hydrogen injected into the plant), and the relationship is output to a display unit (42).

摘要翻译： 一种用于监测植物，其包括模拟材料和的腐蚀电位可以评估用于减轻材料的腐蚀环境下，与由模拟获得的腐蚀电位的对策的效果的设施的运行系统。 植物的结构材料的腐蚀电位通过数值分析通过向电化学电荷转移反应的分析结果的基础上混合潜在定理来计算。 用于搜索潜在的计算程序被预先存储在从其中的数据是接受进入主计算机（图40中7）的计算机系统。 所计算的腐蚀电位与水质相关的数据（例如，氢的注入植物中的浓度），以及关系是输出到显示单元（42）。

公开(公告)号：EP0320019A3

公开(公告)日：1992-08-05

申请号：EP88120719.5

申请日：1988-12-12

申请人： HITACHI, LTD.

发明人： Sakai, Masanori ,  Ohsumi, Katsumi ,  Ohnaka, Noriyuki ,  Kikuchi, Eiji ,  Mabuchi, Katsumi ,  Takahashi, Takuya

IPC分类号： G01N27/42

CPC分类号： G01N27/42 ,  Y10T436/206664

摘要： This invention comprises electrochemical analytical devices (2) capable of performing electrolysis in multiple pulse modes. It relates to a method of quantitative analysis and equipment for performing quantitative analysis which uses a combination of these pulse modes to realize the measurement of concentrations of multiple substances to be measured, occurring in the test solution to be measured and also a nuclear reactor(1) water quality control system employing such a quantitative analysis method.

公开(公告)号：EP0417571B1

公开(公告)日：1995-05-24

申请号：EP90116753.6

申请日：1990-08-31

申请人： HITACHI, LTD.

发明人： Sakai, Masanori ,  Mabuchi, Katsumi ,  Arato, Toshiaki ,  Takahashi, Takuya ,  Izumiya, Masakiyo ,  Masaoka, Isao ,  Kojima, Yoshitaka ,  Inagaki, Masahisa ,  Ohsumi, Katsumi ,  Hayashi, Makoto ,  Sato, Fumio ,  Suwa, Masateru ,  Akahori, Kimihiko

IPC分类号： G21C17/022 ,  G01N27/30

CPC分类号： G01N27/30 ,  G01N33/18 ,  G21C17/022 ,  Y10S706/906

公开(公告)号：EP0693680A2

公开(公告)日：1996-01-24

申请号：EP95304724.8

申请日：1995-07-06

申请人： HITACHI, LTD.

发明人： Sakai, Masanori ,  Ohnaka, Noriyuki ,  Ishikawa, Yuichi ,  Fujimori, Haruo ,  Isobe, Yusuke ,  Takahashi, Takuya

IPC分类号： G01N17/00

CPC分类号： G01N1/04 ,  G01N17/00

摘要： The composition of an alloy is inhomogeneous, so that the Fermi level of electrons in the surface of the alloy differs depending upon positions. It is accordingly considered that a part susceptible to corrosion and a part less susceptible thereto will coexist in the alloy. The corrosion rate of the alloy is indicated as the exponential function of a potential difference (ΔΦH) within an electric double layer. The potential difference remains unchanged as long as the Fermi level lies within the forbidden band of the electrons. However, in a range in which the Fermi level falls within the valence band of the electrons, the lowering thereof leads to the increase of the potential difference. Accordingly, a corrosion-resisting alloy is designed in accordance with the following guidelines: a) The electron energy level (Ev) of the valence band is low, b) an oxide film to be formed on the alloy is an n-type semiconductor, c) a band gap (Ec - Ev) is wide where Ec denotes the conduction band of the electrons, and d) a flatband potential (Ef1) is low. Further, the operation of a plant and the evaluation of a corrosional damage can be based on such a theory.

摘要翻译： 的合金的组成是不均匀的，所以在合金的不同而不同的位置的表面做了电子的费米能级。 据相应的考虑没有易受腐蚀和部分不易受到与其将在合金中共存的部分。 合金的腐蚀速率被表示为内的双电层的电势差（DELTA PHI H）的指数函数。 该电位差保持不变，只要费米能级位于电子的禁带之内。 然而，在一个范围中的费米能级，如果电子的价带内时，其降低导致的电势差的增加。 因此，抗腐蚀的合金设计中雅舞蹈下列准则：a）将价带的电子能级（EV）低，B）氧化物的膜对合金来形成为n型半导体， c）一种带隙（经济 - ）是宽这里，Ec表示的电子的导带中，以及d）一扁平的带状电位（EF1）低。 此外，运算植物和溶蚀损伤的评价可以基于寻求的理论。 $$

公开(公告)号：EP0591802A2

公开(公告)日：1994-04-13

申请号：EP93115546.9

申请日：1993-09-27

申请人： HITACHI, LTD.

发明人： Yamauchi, Hiroshi ,  Sakai, Masanori ,  Mabuchi, Katsumi ,  Takahashi, Takuya ,  Ohnaka, Noriyuki ,  Hattori, Shigeo

IPC分类号： G01N17/02

CPC分类号： B82Y15/00 ,  G01N17/02 ,  Y10S977/852

摘要： A corrosion degree measuring method capable of field measurement for intergranular corrosion, particularly the sensitization degree, of the plant's structural materials in a narrow space. The metal electrode (24) made of a material being measured and the counter electrode (17) to the metal electrode are immersed in an electrolytic solution. A voltage is applied to the metal electrode (24) in the anodic direction so as to raise the potential of the metal electrode (24) up to the passive state potential and to keep the metal electrode (24) at the passive state potential. The passive state potential is used as a reference potential, and a pulse-like potential signal is applied to the metal electrode in the cathodic direction. At the time of the application of the pulse potential signal, a current between the metal electrode (24) and the counter electrode (17) is measured, and the corrosion degree of the material being measured is determined from the intensity of the current.

摘要翻译： 一种腐蚀度测量方法，能够在狭窄的空间内对植物的结构材料进行晶间腐蚀，特别是致敏程度的现场测量。 将由测量材料制成的金属电极（24）和与金属电极相对的对电极（17）浸入电解液中。 在阳极方向上向金属电极（24）施加电压，使金属电极（24）的电位升高到被动状态，并使金属电极（24）保持在被动状态。 被动状态电位用作参考电位，并且在阴极方向上向金属电极施加脉冲状电位信号。 在施加脉冲电位信号时，测量金属电极（24）和对电极（17）之间的电流，并根据电流强度确定被测量材料的腐蚀程度。

公开(公告)号：EP0417571A1

公开(公告)日：1991-03-20

申请号：EP90116753.6

申请日：1990-08-31

申请人： HITACHI, LTD.

发明人： Sakai, Masanori ,  Mabuchi, Katsumi ,  Arato, Toshiaki ,  Takahashi, Takuya ,  Izumiya, Masakiyo ,  Masaoka, Isao ,  Kojima, Yoshitaka ,  Inagaki, Masahisa ,  Ohsumi, Katsumi ,  Hayashi, Makoto ,  Sato, Fumio ,  Suwa, Masateru ,  Akahori, Kimihiko

IPC分类号： G21C17/022 ,  G01N27/30

CPC分类号： G01N27/30 ,  G01N33/18 ,  G21C17/022 ,  Y10S706/906

摘要： A plant operational status monitoring supervisory sys­tem comprising; means for extracting information directly relating to water quality of an objective portion consecu­tively for a period of time by means of an electro­chemical water quality sensor (2) installed in an objective portion (3) to monitor in-situ in a plant; means (6) for evaluat­ing water quality based on thus extracted information; means (6) for comparing an obtained water quality evaluation result with a reference value for a predetermined plant operation procedure; and means (7) for displaying or storing necessary portion out of said comparison results; is disclosed.
An electrochemical reference electrode used in this system being provided with an electrolyte layer (23) containing ion of the electrode member; a porous ceramic layer (22) sur­rounding the same without permeating liquid; and electrode member (26) electrochemically contacting with said elec-trolyte layer (23) ; and a terminal (31) electrically contacting with said electrode member; and further having a long life in high temperature water, various status of high temperature water in objective portions and that of nearby constituent members in a plant are possible to be monitored online by means of this reference electrode.
Further, because monitored data are processed by means of a neural network, the higher precision level of moni­toring has been achieved.

摘要翻译： 一种植物操作状态监视监控系统，包括： 装置，用于通过（2）安装在目标部分中的电化学水质传感器来提取信息直接相关的连续的一段时间的目标部分的水质（3）在原位监测的植物; 装置（6），用于评估根据这样提取信息水质; 装置（6），用于计划与预定的操作过程的参考值进行比较，以得到的水质量评价结果; 和装置（7），用于显示或流出所述比较结果的存储必要部分; 是游离缺失盘。 在该系统中使用的电化学参比电极在电解质层（23）容纳所述电极构件的离子设有; 多孔陶瓷层（22）围绕所述相同，而不渗透液; 和电极部件（26）与电化学说ELEC接触 - 电解质层（23）; 和一个终端（31）电性所说的电极部件相接触; 并且还具有在高温水中，在对象部的高温水的各种状态的长寿命，做附近构成部件在植物中是可能的，而该权利参考电极的方式在线监视的。 此外，由于被监视的数据是由神经网络的装置处理，监测的更高的精度水平已经达到。