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1. 发明授权

US5398269A Water quality control method and device for nuclear power plant, and nuclear power plant 失效
标题翻译：核电厂水质控制方法及装置及核电厂
公开(公告)号：US5398269A
公开(公告)日：1995-03-14
申请号：US33548
申请日：1993-03-18
申请人： Makoto Nagase , Yamato Asakura , Naohito Uetake , Toshio Sawa , Shunsuke Uchida , Renzo Takeda , Katsumi Ohsumi
发明人： Makoto Nagase , Yamato Asakura , Naohito Uetake , Toshio Sawa , Shunsuke Uchida , Renzo Takeda , Katsumi Ohsumi
IPC分类号： G21D1/00 , G21C19/307 , G21D3/08
CPC分类号： G21C19/307 , G21Y2002/103 , G21Y2004/10 , G21Y2004/20 , G21Y2004/40
摘要： A water quality control method for a nuclear power plant comprising the steps of maintaining the iron concentration in the feed water below 0.05 ppb by increasing iron removing rate at a condensed water purifying loop, shifting the pH of the reactor water below a pH of 6.8 determined at a room temperature by injecting carbon dioxide gas in the primary cooling system and further optionally reducing the dissolved oxygen concentration in the reactor water below 20 ppb by injecting hydrogen gas into the primary cooling system, whereby .sup.60 Co ion concentration in the primary cooling system is maintained low for a long interval.
摘要翻译：一种用于核电厂的水质控制方法，包括以下步骤：通过在冷凝水净化回路中提高除铁速率将供水中的铁浓度保持在0.05ppb以下，将反应器水的pH值调至低于6.8的pH值在室温下通过在一次冷却系统中注入二氧化碳气体，并且进一步任选地通过将氢气注入一次冷却系统中将反应器内的低于20ppb的水中的溶解氧浓度降低，由此维持一次冷却系统中的60Co离子浓度低间隔很长。

2. 发明授权

US5377245A Method of operating BWR plant, BWR plant and metal element injecting apparatus 失效
标题翻译： BWR装置，BWR装置和金属元件注入装置的操作方法
公开(公告)号：US5377245A
公开(公告)日：1994-12-27
申请号：US137975
申请日：1993-10-19
申请人： Naohito Uetake , Makoto Nagase , Masayoshi Kondoh , Toshio Sawa , Shunsuke Uchida , Yamato Asakura
发明人： Naohito Uetake , Makoto Nagase , Masayoshi Kondoh , Toshio Sawa , Shunsuke Uchida , Yamato Asakura
IPC分类号： G21C19/307 , G21D1/00 , G21D3/08 , G21F9/28 , G21C9/00
CPC分类号： G21C19/307 , G21Y2002/501 , G21Y2002/601 , G21Y2004/20
摘要： An object of the present invention is to provide a method and a nuclear plant capable of preventing deposition and activation of crud to a nuclear fuel rod and decreasing the radioactivity level in reactor water. Metal ions solely having a low deposition rate coefficient are made to coexist to prevent or decrease deposition of radioactive corrosion products to the nuclear fuel rod. A method and a nuclear plant capable of preventing deposition and activation of crud to the nuclear fuel rod and decreasing the radioactivity level in reactor water can be provided.
摘要翻译：本发明的一个目的是提供一种能够防止核燃料棒堆积和活化的方法和核电站，降低反应堆水中的放射性水平。仅使具有低沉积速率系数的金属离子共存以防止或减少放射性腐蚀产物沉积到核燃料棒。可以提供能够防止核燃料棒的原油沉积和活化并降低反应堆水中的放射性水平的方法和核电站。

3. 发明授权

US4894202A Method of inhibiting radioactive substances from eluting into cooling water in a nuclear plant and an apparatus therefor 失效
标题翻译：抑制放射性物质在核电厂的冷却水中洗脱的方法及其装置
公开(公告)号：US4894202A
公开(公告)日：1990-01-16
申请号：US103705
申请日：1987-10-02
申请人： Makoto Nagase , Yamato Asakura , Hidetoshi Karasawa , Masaharu Sakagami , Shunsuke Uchida , Toshio Sawa , Katsumi Ohsumi
发明人： Makoto Nagase , Yamato Asakura , Hidetoshi Karasawa , Masaharu Sakagami , Shunsuke Uchida , Toshio Sawa , Katsumi Ohsumi
IPC分类号： G21C19/307 , G21C17/022 , G21C19/30 , G21D1/00 , G21D3/08
CPC分类号： G21C17/0225
摘要： Disclosed is a method and apparatus for inhibiting radioactive substances eluting into cooling water of a nuclear plant. The method uses an index consisting of an amount of iron adhered onto the fuel cladding surface, that is calculated from the iron concentration of the cooling water and the operation time. A formation of a layer of the iron oxide on the fuel cladding surface is confirmed based upon the covering ratio of 100%. When the covering ratio is smaller than 100%, the iron concentration in the cooling water is controlled to remain constant at a maximum concentration. The Fe/Ni molar concentration ratio in the cooling water is adjusted to be set from about 2 to 10 after the layer of iron oxide reaches a covering ratio of 100%. .sup.58 Co ion and .sup.60 Co ion concentrations in the cooling water can be decreased without greatly increasing the concentration of precipitating radioactive crud, and the surface dosage in the primary system can be decreased at the time of regular checking.
摘要翻译：公开了一种抑制放射性物质洗脱到核电厂冷却水中的方法和装置。该方法使用由附着在燃料包覆表面上的铁量组成的指数，其由冷却水的铁浓度和操作时间计算。基于100％的覆盖率确认燃料包覆面上的氧化铁层的形成。当覆盖率小于100％时，冷却水中的铁浓度被控制为保持恒定在最大浓度。在氧化铁层达到100％的覆盖率之后，将冷却水中的Fe / Ni摩尔浓度比调整为约2〜10。可以降低冷却水中的58Co离子和60Co离子浓度，而不会大大增加沉淀放射性碎屑的浓度，并且在定期检查时可以减少初级体系中的表面剂量。

4. 发明授权

US4853638A Water quality control method, and method and apparatus for measuring electrical conductivity used in the water quality control 失效
标题翻译：水质控制方法以及用于测量水质控制中使用的电导率的方法和装置
公开(公告)号：US4853638A
公开(公告)日：1989-08-01
申请号：US141424
申请日：1988-01-07
申请人： Masao Endou , Yamato Asakura , Atsushi Watanabe , Masaharu Sakagami , Shunsuke Uchida , Makoto Nagase , Tsutomu Baba , Katsumi Ohsumi
发明人： Masao Endou , Yamato Asakura , Atsushi Watanabe , Masaharu Sakagami , Shunsuke Uchida , Makoto Nagase , Tsutomu Baba , Katsumi Ohsumi
IPC分类号： G01R27/22 , G01N17/02 , G01N27/02 , G01N27/06 , G01N27/26 , G01N33/18 , G21C17/02
CPC分类号： G01N27/06 , G01N33/18 , G01N33/182
摘要： Electric conductivities of an aqueous solution under measurement are measured at two or more different temperatures in a range To to Tn, and a relationship between the electrical conductivity and the temperatures is obtained. A solute substance in the aqueous solution is determined by applying this relationship against a known temperature and electrical conductivity relationship of an individual substance. A concentration of the determined substance is estimated by applying the electrical conductivity at the lowest temperature To to a known relationship between an electrical conductivity and a concentration at the same temperature To with respect to an individual substance.

5. 发明授权

US5084235A Direct cycle-type atomic power plant with means for suppressing transfer from a liquid phase to a vapor phase of radioactive nitrogen oxides 失效
标题翻译：具有用于抑制从液相转移到放射性氮氧化物的气相的手段的直接循环型原子能发电厂
公开(公告)号：US5084235A
公开(公告)日：1992-01-28
申请号：US554158
申请日：1990-07-19
申请人： Eishi Ibe , Hidetoshi Karasawa , Maroto Nagase , Masaharu Sakagami , Shunsuke Uchida , Minoru Miki , Yamato Asakura , Motoaki Utamura , Fumio Kawamura , Katsumi Ohsumi , Yoshinori Chiba
发明人： Eishi Ibe , Hidetoshi Karasawa , Maroto Nagase , Masaharu Sakagami , Shunsuke Uchida , Minoru Miki , Yamato Asakura , Motoaki Utamura , Fumio Kawamura , Katsumi Ohsumi , Yoshinori Chiba
IPC分类号： G21C1/08 , G21C19/30
CPC分类号： G21C19/30 , G21C1/084 , Y02E30/31
摘要： A direct cycle type atomic power plant provided with a means for suppressing transfer of radioactive nitrogen compounds generated by nuclear reaction in the core from the reactor water to steam, where an increase in the dose rate in the main steam system and the turbine system due to carry-over of radioactive nitrogen atom, .sup.16 N, generated in the core can be suppressed, and the radioactivity therein can be reduced.
摘要翻译：一种直接循环型原子能发电厂，其设置有用于抑制由核反应堆中的核反应产生的放射性氮化合物从反应器水转移到蒸汽的装置，其中主蒸汽系统和涡轮系统中的剂量率由于可以抑制在核心中产生的放射性氮原子16N的转移，并且可以降低其中的放射性。

6. 发明授权

US5369674A Plant diagnosis apparatus and method 失效
标题翻译：植物诊断装置及方法
公开(公告)号：US5369674A
公开(公告)日：1994-11-29
申请号：US824399
申请日：1992-01-23
申请人： Kenji Yokose , Makoto Nagase , Hiroshi Kamimura , Yamato Asakura , Tetsuya Matsui , Hidefumi Ibe , Yoshitaka Nishino , Shunsuke Uchida
发明人： Kenji Yokose , Makoto Nagase , Hiroshi Kamimura , Yamato Asakura , Tetsuya Matsui , Hidefumi Ibe , Yoshitaka Nishino , Shunsuke Uchida
IPC分类号： G01D21/00 , G05B23/02 , G21C17/00 , G21C17/02
CPC分类号： G21C17/00
摘要： This invention concerns a plant diagnosis apparatus which comprises a first detecting unit for detecting a state of devices constituting a circulating system in which a fluid circulates and a second detecting unit for detecting a quality of the above-mentioned circulating fluid or a quality of the atmosphere surrounding the above-mentioned circulating system, and a unit for diagnosing the circulating system by output of the first and second detecting units, and therefore can diagnose anomaly of facilities such as a nuclear power plant with high reliability and rapidity.
摘要翻译：本发明涉及一种植物诊断装置，其包括：第一检测单元，用于检测构成流体循环的循环系统的装置的状态;以及第二检测单元，用于检测上述循环液的质量或大气质量围绕上述循环系统，以及用于通过第一和第二检测单元的输出来诊断循环系统的单元，因此可以高可靠性和快速地诊断诸如核电站之类的设备的异常。

7. 发明授权

US5132075A Method and apparatus for water chemistry diagnosis of atomic power plant 失效
标题翻译：原子能发电厂水化学诊断方法与装置
公开(公告)号：US5132075A
公开(公告)日：1992-07-21
申请号：US475962
申请日：1990-02-06
申请人： Yamato Asakura , Makoto Nagase , Motoaki Utamura , Shunsuke Uchida
发明人： Yamato Asakura , Makoto Nagase , Motoaki Utamura , Shunsuke Uchida
IPC分类号： G21C17/022
CPC分类号： G21C17/022
摘要： Measurement values of conductivity of pH of water in the primary cooling water system of a boiling water atomic power plant are input through on-line and the measurement values of conductivity and pH at times of measurement when water quality changes are compared with values at the time of normal operation. Tendencies to increase or decrease the conductivity and pH are combined to prepare one diagnosis data, and causes of anomaly in progress in component apparatus members are discriminated and diagnosed by the diagnosis data. By using a correlation between logarithm of conductivity and pH in preparing the diagnosis data from combinations of conductivity and pH, causes of anomaly can be diagnosed more accurated.
摘要翻译：沸水原子发电厂一级冷却水系统中水的pH值的测量值通过在线输入，水质变化时的测量时的电导率和pH值的测量值与当时的值进行比较的正常运行。结合增加或减少导电性和pH值的趋势来制备一个诊断数据，并通过诊断数据来鉴别和诊断组件装置构件中异常的原因。通过使用电导率和pH值的对数之间的关系，从电导率和pH的组合制备诊断数据，可以更准确地诊断异常的原因。

8. 发明授权

US4704245A Method and apparatus for monitoring break of ion adsorption apparatus 失效
标题翻译：监测离子吸附装置断裂的方法和装置
公开(公告)号：US4704245A
公开(公告)日：1987-11-03
申请号：US748332
申请日：1985-06-24
申请人： Yamato Asakura , Shunsuke Uchida
发明人： Yamato Asakura , Shunsuke Uchida
IPC分类号： C02F1/42 , B01J47/00 , B01J47/14 , G01N30/00 , G21C17/02 , G21C17/00
CPC分类号： G21C17/02
摘要： Ability of ion adsorption apparatus such as a desalting unit, etc. as used in an atomic power plant is continuously monitored, and any deterioration in the ability is detected in advance by a method and an apparatus for monitoring a break in an ion adsorption apparatus by detecting a break point of the ion adsorption apparatus using ion exchange resin, thereby determining a timing for regenerating or exchanging the resin, which comprises making an ion species having a weaker selective adsortability to the ion exchange resin as a sampling ion species than that of a target ion species to be adsorbed and present in water to be treated, and detecting leakage of the sampling ion species at the downstream side of the adsorption apparatus, thereby determining the break point of the ion exchange resin.
摘要翻译：继续监测原子发电厂中使用的脱盐装置等离子吸附装置的能力，通过用离子吸附装置的断裂监测方法和装置预先检测能力的劣化，使用离子交换树脂检测离子吸附装置的断点，从而确定树脂的再生或更换的时间，其中包括使离子交换树脂具有较弱选择性的适合性的离子种类作为取样离子种类要吸附并存在待处理水中的目标离子物质，并且检测吸附装置下游侧的取样离子种类的泄漏，由此确定离子交换树脂的断裂点。

9. 发明授权

US4831324A Method and apparatus for analyzing the electrode inpedance 失效
标题翻译：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
申请人： Yamato Asakura , Masao Endo , Shunsuke Uchida , Masami Matsuda , Kazumichi Suzuki
发明人： Yamato Asakura , Masao Endo , Shunsuke Uchida , Masami Matsuda , Kazumichi Suzuki
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。

10. 发明授权

US4764338A Method for operating boiling water-type atomic power plant 失效
标题翻译：沸水型原子能发电厂的运行方法
公开(公告)号：US4764338A
公开(公告)日：1988-08-16
申请号：US705695
申请日：1985-02-26
申请人： Shunsuke Uchida , Katsumi Ohsumi
发明人： Shunsuke Uchida , Katsumi Ohsumi
IPC分类号： G21D3/08 , C23F15/00 , G21C19/28 , G21C19/307 , G21C19/30
CPC分类号： G21C19/307 , C23F15/00 , G21C19/28
摘要： In operation of a boiling water-type, atomic power plant, rated operation is conducted while adjusting the pH of core water in the nuclear reactor to 7.0 to 8.5 by adding an alkali thereto, thereby controlling dissolution of radioactive corrosion products attached to fuel rods into the core water. An increase in the radioactive corrosion products in the core water and in the dose rate can be prevented.
摘要翻译：在沸水型原子能发电厂的运行中，通过向其中添加碱将核反应堆中的核心水的pH调节至7.0〜8.5进行额定运转，从而控制附着在燃料棒上的放射性腐蚀产物的溶解核心水。可以防止核心水中的放射性腐蚀产物的增加和剂量率的增加。

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