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Inhibition of deposition of radioactive substances on nuclear power plant components 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G21C-011/02
출원번호 US-0117492 (1987-11-06)
우선권정보 JP-0078511 (1984-04-20); JP-0137210 (1984-07-04)
발명자 / 주소
  • Honda Takashi (Katsuta JPX) Furutani Yasumasa (Katsuta JPX) Ohashi Kenya (Hitachi JPX) Kashimura Eiji (Ibaraki JPX) Minato Akira (Hitachi JPX) Ohsumi Katsumi (Hitachi JPX) Itou Hisao (Hitachi JPX)
출원인 / 주소
  • Hitachi, Ltd. (Tokyo JPX 03)
인용정보 피인용 횟수 : 19  인용 특허 : 3

초록

A nuclear power plant wherein surfaces of components contacting with nuclear reactor cooling water containing radioactive substances are coated with an oxide film, preferably being charged positively and/or containing chromium in an amount of 12% by weight or more, is prevented effectively from the

대표청구항

A process for inhibiting deposition of radioactive substances on nuclear power plant components which comprises forming a positively charged oxide film on surface of components contacting with nuclear reactor cooling water containing radioactive substances by treating the surface of components with

이 특허에 인용된 특허 (3)

  1. Honda Takashi (Katsuta JPX) Kawakami Toshio (Ibaraki JPX) Izumiya Masakiyo (Mito JPX) Minato Akira (Hitachi JPX) Ohsumi Katsumi (Hitachi JPX), Nuclear power plant providing a function of suppressing the deposition of radioactive substance.
  2. Bonnici Paul J. (St. Catherines CAX) Denault Robert P. (Niagara Falls CAX), Process for treatment of oxide films prior to chemical cleaning.
  3. Foster Alan I. (Ashford GB2) Sims Malcolm L. (Hersham GB2) Young Dennis (Staines GB2), Protective metal oxide films on metal or alloy substrate surfaces susceptible to coking, corrosion or catalytic activity.

이 특허를 인용한 특허 (19)

  1. Dulka, Catherine P.; Ackerman, John F.; Sandusky, David W.; Lenz, Mark O.; Lantz, Leland L.; McMahan, Michael B.; MacMillan, Glen Arthur, Apparatus and methods for protecting a jet pump nozzle assembly and inlet-mixer.
  2. Terhune James Howard ; Gordon Barry Monroe, Coating for reducing corrosion of zirconium-based alloys induced by . .beta-particle irradiation.
  3. Dulka, Catherine Procik; Kim, Young Jin; Israel, Rajasingh Schwartz; Sandusky, David Wesley; Janora, Kevin H.; Brown, Peter W.; Zhao, Tianji, Dielectric coating for surfaces exposed to high temperature water.
  4. Dulka, Catherine Procik; Kim, Young Jin; Israel, Rajasingh Schwartz; Sandusky, David Wesley; Janora, Kevin H.; Brown, Peter W.; Zhao, Tianji, Dielectric coating for surfaces exposed to high temperature water.
  5. Marganski, Paul J.; Arno, Jose I.; Sturm, Edward A.; Zaleta, Kristy L., Fluid storage and dispensing vessels having colorimetrically verifiable leak-tightness and method of making same.
  6. Marganski, Paul J.; Arno, Jose I.; Sturm, Edward A.; Zaleta, Kristy L., Fluid storage and dispensing vessels having colorimetrically verifiable leak-tightness, and method of making same.
  7. Marganski,Paul J.; Arno,Jose I.; Sturm,Edward A.; Zaleta,Kristy L., Fluid storage and dispensing vessels having colorimetrically verifiable leak-tightness, and method of making same.
  8. Micko Anders ; Rudling Peter,SEX ; Wolfram Dietmar,SEX, Fuel assembly comprising a component for retaining elongated elements.
  9. Law, Robert James; Siegewarth, David Phillip, Iron control in BWR's with sacrificial electrodes.
  10. Hemmi, Yukio; Yamazaki, Kenji; Hirasawa, Hajime, Method for controlling water quality in nuclear reactor and nuclear power plant to which the method is applied.
  11. Murray Alexander P. (Murrysville Boro PA), Method for decontaminating a pressurized water nuclear reactor system.
  12. Hettiarachchi Samson ; Kim Young J. ; Andresen Peter L. ; Diaz Thomas P., Modification of oxide film electrical conductivity to maintain low corrosion potential in high-temperature water.
  13. Hiroyuki Anada JP; Kazuyuki Kitamura JP; Toshihiro Imoto JP; Osamu Miyahara JP, Nickel-base alloy product and method of producing the same.
  14. Blotzer Richard J. ; Anderson Jeffrey P. ; Lauer Barry A., Steel with electrically insulating hematite layer.
  15. Blotzer Richard J. ; Anderson Jeffrey P. ; Lauer Barry A., Steel with electrically insulating hematite layer.
  16. Hosokawa, Hideyuki; Nagase, Makoto; Ishida, Kazushige; Wada, Yoichi; Usui, Naoshi; Aizawa, Motohiro; Fuse, Motomasa, Suppression method of radionuclide deposition on reactor component of nuclear power plant.
  17. Hosokawa, Hideyuki; Nagase, Makoto; Ishida, Kazushige; Wada, Yoichi; Usui, Naoshi; Aizawa, Motohiro; Fuse, Motomasa, Suppression method of radionuclide deposition on reactor component of nuclear power plant and ferrite film formation apparatus.
  18. Hosokawa, Hideyuki; Nagase, Makoto; Ishida, Kazushige; Wada, Youichi; Usui, Naoshi; Aizawa, Motohiro; Fuse, Motomasa, Suppression method of radionuclide deposition on reactor component of nuclear power plant and ferrite film formation apparatus.
  19. Nagase Makoto (Hitachi JPX) Asakura Yamoto (Katsuta JPX) Utamura Motoaki (Hitachi JPX) Uchida Shunsuke (Hitachi JPX), Water-cooled direct cycle nuclear power plant.
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