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公开(公告)号：US09850581B2
公开(公告)日：2017-12-26
申请号：US15048227
申请日：2016-02-19
发明人： Akio Sayano , Norihisa Saito , Tetsuji Kaneko , Yasuo Morishima , Masato Okamura , Kenji Yamazaki , Kunihiko Kinugasa
IPC分类号： C23C30/00 , C23C18/12 , C23C26/00 , F04F5/10 , F04F5/46 , G21C15/25 , G21C19/307 , G21C1/08 , G21C17/022
CPC分类号： C23C30/005 , C23C18/1216 , C23C18/1241 , C23C26/00 , F04F5/10 , F04F5/46 , G21C1/084 , G21C15/25 , G21C17/0225 , G21C19/307 , Y02E30/31
摘要： A coating of niobium oxide, zirconium titanate, or nickel titanate is formed on at least a part of a surface of a jet pump member constituting a jet pump serving as a reactor internal structure of a boiling water reactor. Further, a solution containing, e.g., a niobium compound is applied to at least a part of the surface of the jet pump member constituting the jet pump, and the jet pump member coated with the solution is heat-treated to form a coating of, e.g., niobium oxide. With this configuration, the jet pump member constituting the jet pump of the boiling water reactor is provided such that deposition of crud can be sufficiently suppressed on the jet pump member.
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公开(公告)号：US09969889B2
公开(公告)日：2018-05-15
申请号：US14692339
申请日：2015-04-21
发明人： Masato Okamura , Osamu Shibasaki , Koji Negishi , Seiji Yamamoto , Hajime Hirasawa , Kenji Yamazaki , Tetsuji Kaneko
IPC分类号： C09D5/08 , C23F11/18 , C23F11/08 , F01D5/28 , F16L58/08 , F22B37/02 , F22B37/10 , C08K3/22 , C08K3/26 , C08K5/098 , G21D1/00
CPC分类号： C09D5/08 , C08K3/22 , C08K3/26 , C08K5/098 , C08K2003/221 , C23F11/08 , C23F11/18 , C23F11/185 , F01D5/288 , F05D2220/31 , F16L58/08 , F22B37/025 , F22B37/108 , G21D1/00 , Y10T428/273
摘要： The present invention provides a corrosion-resistant structure for a high-temperature water system comprising: a structural material 1; and a corrosion-resistant film 3 formed from a substance containing at least one of La and Y deposited on a surface in a side that comes in contact with a cooling water 4, of the structural material 1 which constitutes the high-temperature water system that passes a cooling water 4 of high temperature therein. Due to above construction, there can be provided the corrosion-resistant structure and a corrosion-preventing method capable of operating a plant without conducting a water chemistry control of cooling water by injecting chemicals.
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公开(公告)号：US09771482B2
公开(公告)日：2017-09-26
申请号：US14692256
申请日：2015-04-21
发明人： Masato Okamura , Osamu Shibasaki , Koji Negishi , Seiji Yamamoto , Hajime Hirasawa , Kenji Yamazaki , Tetsuji Kaneko
IPC分类号： C09D5/08 , C23F11/08 , C23F11/18 , F01D5/28 , F16L58/08 , F22B37/02 , F22B37/10 , C08K3/22 , C08K3/26 , C08K5/098 , G21D1/00
CPC分类号： C09D5/08 , C08K3/22 , C08K3/26 , C08K5/098 , C08K2003/221 , C23F11/08 , C23F11/18 , C23F11/185 , F01D5/288 , F05D2220/31 , F16L58/08 , F22B37/025 , F22B37/108 , G21D1/00 , Y10T428/273
摘要： The present invention provides a corrosion-resistant structure for a high-temperature water system comprising: a structural material 1; and a corrosion-resistant film 3 formed from a substance containing at least one of La and Y deposited on a surface in a side that comes in contact with a cooling water 4, of the structural material 1 which constitutes the high-temperature water system that passes a cooling water 4 of high temperature therein. Due to above construction, there can be provided the corrosion-resistant structure and a corrosion-preventing method capable of operating a plant without conducting a water chemistry control of cooling water by injecting chemicals.
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