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公开(公告)号：US08652271B2
公开(公告)日：2014-02-18
申请号：US12849484
申请日：2010-08-03
CPC分类号： C23C30/005 , C23C18/1651 , C23C18/1692 , C23C18/32 , C23C18/52 , G21C17/0225 , G21C19/28
摘要： A bath containing nickel ions and formic acid is injected into a film-forming aqueous solution flowing in a circulation pipe connected to feed water pipe made of carbon steel in a BWR plant. This film-forming aqueous solution is supplied into the feed water pipe through the circulation pipe, and then, a nickel metal film is formed on an inner surface of the feed water pipe. After the nickel metal film is formed, a film-forming aqueous solution containing iron (II) ions, formic acid, nickel ions, hydrogen peroxide, and hydrazine is supplied to the feed water pipe. A nickel ferrite film is formed on the surface of the nickel metal film in the feed water pipe. Then, the nickel ferrite film is come into contact with water containing dissolved-oxygen at 150° C. or above to transform the nickel metal film into a nickel ferrite film. A thick nickel ferrite film is formed on the inner surface of the feed water pipe. Corrosion of the carbon steel member composing the plant can further reduce.
摘要翻译： 将含有镍离子和甲酸的浴注入与在BWR工厂中由碳钢制的供水管连接的循环管中流动的成膜水溶液中。 该成膜水溶液通过循环管供给到给水管中，然后在给水管的内表面上形成镍金属膜。 在形成镍金属膜之后，向给水管供给含有铁（II）离子，甲酸，镍离子，过氧化氢和肼的成膜水溶液。 在供水管中的镍金属膜的表面上形成镍铁氧体膜。 然后，将镍铁氧体膜与150℃以上的含有溶解氧的水接触，将镍金属膜转变成镍铁氧体膜。 在供水管的内表面上形成厚镍铁氧体膜。 构成植物的碳钢构件的腐蚀可以进一步降低。
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公开(公告)号：US20110030850A1
公开(公告)日：2011-02-10
申请号：US12849484
申请日：2010-08-03
CPC分类号： C23C30/005 , C23C18/1651 , C23C18/1692 , C23C18/32 , C23C18/52 , G21C17/0225 , G21C19/28
摘要： A bath containing nickel ions and formic acid is injected into a film-forming aqueous solution flowing in a circulation pipe connected to feed water pipe made of carbon steel in a BWR plant. This film-forming aqueous solution is supplied into the feed water pipe through the circulation pipe, and then, a nickel metal film is formed on an inner surface of the feed water pipe. After the nickel metal film is formed, a film-forming aqueous solution containing iron (II) ions, formic acid, nickel ions, hydrogen peroxide, and hydrazine is supplied to the feed water pipe. A nickel ferrite film is formed on the surface of the nickel metal film in the feed water pipe. Then, the nickel ferrite film is come into contact with water containing dissolved-oxygen at 150° C. or above to transform the nickel metal film into a nickel ferrite film. A thick nickel ferrite film is formed on the inner surface of the feed water pipe. Corrosion of the carbon steel member composing the plant can further reduce.
摘要翻译： 将含有镍离子和甲酸的浴注入与在BWR工厂中由碳钢制的供水管连接的循环管中流动的成膜水溶液中。 该成膜水溶液通过循环管供给到给水管中，然后在给水管的内表面上形成镍金属膜。 在形成镍金属膜之后，向给水管供给含有铁（II）离子，甲酸，镍离子，过氧化氢和肼的成膜水溶液。 在供水管中的镍金属膜的表面上形成镍铁氧体膜。 然后，将镍铁氧体膜与150℃以上的含有溶解氧的水接触，将镍金属膜转变成镍铁氧体膜。 在供水管的内表面上形成厚镍铁氧体膜。 构成植物的碳钢构件的腐蚀可以进一步降低。
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公开(公告)号：US08821973B2
公开(公告)日：2014-09-02
申请号：US13108471
申请日：2011-05-16
申请人： Tsuyoshi Ito , Hideyuki Hosokawa , Yukio Hirama , Makoto Nagase
发明人： Tsuyoshi Ito , Hideyuki Hosokawa , Yukio Hirama , Makoto Nagase
CPC分类号： G21C19/00 , C23C18/1216 , C23C18/1241 , C23C18/1283 , Y10T29/49888
摘要： Both ends of a circulation pipe of a film formation apparatus are connected to a piping of a BWR plant. A chemical including chromium ions and formic acid is injected into a film formation solution flowing in the circulation pipe heated to a temperature within a range from 60° C. to 100° C. Furthermore, a chemical including iron (II) ions and formic acid, hydrogen peroxide, and hydrazine are injected into the circulation pipe. Due to the injection of these chemicals, a film formation solution of pH 7.0 including iron (II) ions, chromium ions, formic acid, hydrogen peroxide, and hydrazine is generated in the circulation pipe. This film formation solution includes hydrazine of, for example, 1000 ppm. The film formation solution is supplied to the piping, thus, a Fe3—xCrxO4 film (here, 0
摘要翻译： 成膜装置的循环管的两端连接到BWR设备的管道。 将包含铬离子和甲酸的化学物质注入到加热到60℃至100℃的循环管中的成膜溶液中。此外，包括铁（II）离子和甲酸 ，过氧化氢和肼被注入到循环管中。 由于这些化学品的注入，在循环管中产生了含有铁（II）离子，铬离子，甲酸，过氧化氢和肼的pH7.0的成膜溶液。 该成膜溶液包括例如1000ppm的肼。 向管道供给成膜溶液，因此在配管的内表面形成有Fe 3-x Cr x O 4膜（这里为0
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公开(公告)号：US20110277304A1
公开(公告)日：2011-11-17
申请号：US13108471
申请日：2011-05-16
申请人： Tsuyoshi ITO , Hideyuki Hosokawa , Yukio Hirama , Makoto Nagase
发明人： Tsuyoshi ITO , Hideyuki Hosokawa , Yukio Hirama , Makoto Nagase
CPC分类号： G21C19/00 , C23C18/1216 , C23C18/1241 , C23C18/1283 , Y10T29/49888
摘要： Both ends of a circulation pipe of a film formation apparatus are connected to a piping of a BWR plant. A chemical including chromium ions and formic acid is injected into a film formation solution flowing in the circulation pipe heated to a temperature within a range from 60° C. to 100° C. Furthermore, a chemical including iron (II) ions and formic acid, hydrogen peroxide, and hydrazine are injected into the circulation pipe. Due to the injection of these chemicals, a film formation solution of pH 7.0 including iron (II) ions, chromium ions, formic acid, hydrogen peroxide, and hydrazine is generated in the circulation pipe. This film formation solution includes hydrazine of, for example, 1000 ppm. The film formation solution is supplied to the piping, thus, a Fe3—xCrxO4 film (here, 0
摘要翻译： 成膜装置的循环管的两端连接到BWR设备的管道。 将包含铬离子和甲酸的化学物质注入到加热到60℃至100℃的循环管中的成膜溶液中。此外，包括铁（II）离子和甲酸的化学物质 ，过氧化氢和肼被注入到循环管中。 由于这些化学品的注入，在循环管中产生了含有铁（II）离子，铬离子，甲酸，过氧化氢和肼的pH7.0的成膜溶液。 该成膜溶液包括例如1000ppm的肼。 向管道供给成膜溶液，在配管的内表面形成有Fe 3-x Cr x O 4膜（这里为0
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公开(公告)号：US20090003508A1
公开(公告)日：2009-01-01
申请号：US12149291
申请日：2008-04-30
IPC分类号： G21C9/00
CPC分类号： G21C19/307 , G21Y2002/103 , G21Y2004/40
摘要： A formic acid aqueous solution that contains Fe (II) ions is produced by dissolving metal iron in a formic acid aqueous solution. Nitrogen is supplied from a nitrogen supply device to a chemical liquid tank and then discharged from a discharge line to reduce the dissolved oxygen concentration in the aqueous solution. The chemical liquid tank is filled with the formic acid aqueous solution sealed with nitrogen, and is transferred from a factory to a nuclear reactor building designated as radiation-controlled areas. Inside the nuclear reactor building, the chemical liquid tank is installed in a film deposition apparatus connected to a reactor water recirculation pipeline. The formic acid aqueous is supplied from the chemical liquid tank to the inside of the reactor water recirculation pipeline, and then a ferrite film is formed on the inner surface of the reactor water recirculation pipeline.
摘要翻译： 含有Fe（II）离子的甲酸水溶液是通过将金属铁溶解在甲酸水溶液中制成的。 氮气从氮气供给装置供给到药液罐，然后从排出管路排出，以降低水溶液中的溶解氧浓度。 化学液体罐装有用氮气密封的甲酸水溶液，并从工厂转移到指定为辐射控制区的核反应堆。 在核反应堆建筑物内部，化学液体罐安装在连接到反应堆水再循环管道的成膜装置中。 甲酸水溶液从化学液体罐供应到反应器水循环管道的内部，然后在反应器水循环管道的内表面上形成铁氧体膜。
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公开(公告)号：US20080181351A1
公开(公告)日：2008-07-31
申请号：US11768437
申请日：2007-06-26
IPC分类号： G21C15/00
CPC分类号： G21C19/307 , G21Y2002/103 , G21Y2004/40
摘要： A formic acid aqueous solution that contains Fe (II) ions is produced by dissolving metal iron in a formic acid aqueous solution. Nitrogen is supplied from a nitrogen supply device to a chemical liquid tank and then discharged from a discharge line to reduce the dissolved oxygen concentration in the aqueous solution. The chemical liquid tank is filled with the formic acid aqueous solution sealed with nitrogen, and transferred from a factory to a nuclear reactor building designated as radiation-controlled areas. Inside the nuclear reactor building the chemical liquid tank is installed in a film deposition apparatus connected to a reactor water recirculation pipeline. The formic acid aqueous is supplied from the chemical liquid tank to the inside of the reactor water recirculation pipeline, and then a ferrite film is formed on the inner surface of the reactor water recirculation pipeline.
摘要翻译： 含有Fe（II）离子的甲酸水溶液是通过将金属铁溶解在甲酸水溶液中制成的。 氮气从氮气供给装置供给到药液罐，然后从排出管路排出，以降低水溶液中的溶解氧浓度。 化学液体罐用氮气密封的甲酸水溶液填充，并从工厂转移到指定为辐射控制区的核反应堆。 在核反应堆建筑物内，化学液体罐安装在连接到反应堆水再循环管道的膜沉积设备中。 甲酸水溶液从化学液体罐供应到反应器水循环管道的内部，然后在反应器水循环管道的内表面上形成铁氧体膜。
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7.发明申请METHOD FOR SUPPRESSING DEPOSIT OF RADIONUCLIDE ONTO STRUCTURE MEMBER COMPOSING NUCLEAR POWER PLANT AND FERRITE FILM FORMATION APPARATUS 审中-公开将放射性核素沉积在组成核电厂和铁电薄膜形成装置的结构构件上的方法公开(公告)号：US20090316852A1
公开(公告)日：2009-12-24
申请号：US12134277
申请日：2008-06-06
IPC分类号： G21C9/00
CPC分类号： G21C17/0225 , G21C19/307 , G21F9/04
摘要： A method for suppressing deposit of radionuclide onto structure member composing a nuclear power plant, comprising the steps of: bringing film formation liquid including iron (II) ions and either of zinc (II) ions and nickel (II) ions into contact with a surface of the structure member; and forming either of a ferrite film including the zinc and a ferrite film including the nickel on the surface of the structure member.
摘要翻译： 一种用于抑制放射性核素沉积到构成核电站的构件上的方法，包括以下步骤：使包含铁（II）离子和锌（II）离子和镍（II）离子的成膜液体与表面 的结构件; 并且在所述结构件的表面上形成包括所述锌的铁氧体膜和包括所述镍的铁氧体膜。
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8.发明申请METHOD AND APPARATUS FOR SUPPRESSING CORROSION OF CARBON STEEL, METHOD FOR SUPPRESSING DEPOSIT OF RADIONUCLIDE ONTO CARBON STEEL MEMBERS COMPOSING A NUCLEAR POWER PLANT, AND FILM FORMATION APPARATUS 审中-公开用于抑制碳钢腐蚀的方法和装置，用于抑制放射性核素沉积在组成核电厂的碳钢构件和膜形成装置上的方法公开(公告)号：US20090290675A1
公开(公告)日：2009-11-26
申请号：US12491737
申请日：2009-06-25
申请人： Makoto Nagase , Hideyuki Hosokawa , Satoshi Morisawa , Motoaki Sakashita , Katsuo Yokota , IIchiro Kataoka
发明人： Makoto Nagase , Hideyuki Hosokawa , Satoshi Morisawa , Motoaki Sakashita , Katsuo Yokota , IIchiro Kataoka
IPC分类号： C23F11/00
CPC分类号： C23C22/68
摘要： The present invention is a method for suppressing corrosion of carbon steel members composing a nuclear power plant. That is, the processing solution contains a chemical including iron (II) ions, an oxidizing agent for oxidizing at least one part of the iron (II) ions into iron (III) ion, and a pH adjustment agent for adjusting pH. The pH of the processing solution is adjusted in the range of 5.5 to 9.0 by the pH adjustment agent. The processing solution is introduced into a purifying system pipe having the carbon steel members. The iron (II) ions are adsorbed on an inner surface of the purifying system pipe, namely, a surface of the carbon steel members. The ferrite film is formed on the surface of the carbon steel members by oxidizing the absorbed iron (II) ions. Therefore, corrosion of the carbon steel members is suppressed by the ferrite film.
摘要翻译： 本发明是一种抑制构成核电站的碳钢构件的腐蚀的方法。 也就是说，处理溶液含有包含铁（II）离子的化学物质，用于将至少一部分铁（II）离子氧化成铁（III）离子的氧化剂，以及用于调节pH的pH调节剂。 通过pH调节剂将处理液的pH调节在5.5〜9.0的范围内。 将处理液引入具有碳钢构件的净化系统管中。 铁（II）离子被吸附在净化系统管的内表面，即碳钢构件的表面上。 通过氧化吸收的铁（II）离子，在碳钢构件的表面上形成铁氧体膜。 因此，通过铁氧体膜抑制碳钢构件的腐蚀。
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公开(公告)号：US08494107B2
公开(公告)日：2013-07-23
申请号：US12149291
申请日：2008-04-30
IPC分类号： G21C9/00 , G21C19/42 , B05C3/00 , B01D11/00 , B01D11/02 , B01F1/00 , C01G43/00 , C01G56/00 , C01G23/00 , C01G25/00 , C01G27/00 , C22B60/02 , C22B34/10 , H01J9/24
CPC分类号： G21C19/307 , G21Y2002/103 , G21Y2004/40
摘要： A formic acid aqueous solution that contains Fe (II) ions is produced by dissolving metal iron in a formic acid aqueous solution. Nitrogen is supplied from a nitrogen supply device to a chemical liquid tank and then discharged from a discharge line to reduce the dissolved oxygen concentration in the aqueous solution. The chemical liquid tank is filled with the formic acid aqueous solution sealed with nitrogen, and is transferred from a factory to a nuclear reactor building designated as radiation-controlled areas. Inside the nuclear reactor building, the chemical liquid tank is installed in a film deposition apparatus connected to a reactor water recirculation pipeline. The formic acid aqueous is supplied from the chemical liquid tank to the inside of the reactor water recirculation pipeline, and then a ferrite film is formed on the inner surface of the reactor water recirculation pipeline.
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公开(公告)号：US08259894B2
公开(公告)日：2012-09-04
申请号：US11768437
申请日：2007-06-26
IPC分类号： G21C9/00
CPC分类号： G21C19/307 , G21Y2002/103 , G21Y2004/40
摘要： A formic acid aqueous solution that contains Fe (II) ions is produced by dissolving metal iron in a formic acid aqueous solution. Nitrogen is supplied from a nitrogen supply device to a chemical liquid tank and then discharged from a discharge line to reduce the dissolved oxygen concentration in the aqueous solution. The chemical liquid tank is filled with the formic acid aqueous solution sealed with nitrogen, and transferred from a factory to a nuclear reactor building designated as radiation-controlled areas. Inside the nuclear reactor building, the chemical liquid tank is installed in a film deposition apparatus connected to a reactor water recirculation pipeline. The formic acid aqueous is supplied from the chemical liquid tank to the inside of the reactor water recirculation pipeline, and then a ferrite film is formed on the inner surface of the reactor water recirculation pipeline.
摘要翻译： 含有Fe（II）离子的甲酸水溶液是通过将金属铁溶解在甲酸水溶液中制成的。 氮气从氮气供给装置供给到药液罐，然后从排出管路排出，以降低水溶液中的溶解氧浓度。 化学液体罐用氮气密封的甲酸水溶液填充，并从工厂转移到指定为辐射控制区的核反应堆。 在核反应堆建筑物内部，化学液体罐安装在连接到反应堆水再循环管道的成膜装置中。 甲酸水溶液从化学液体罐供应到反应器水循环管道的内部，然后在反应器水循环管道的内表面上形成铁氧体膜。
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