JPS5466562A - Method of decontaminating reactor pressure vessel - Google Patents

Method of decontaminating reactor pressure vessel

Info

Publication number
JPS5466562A
JPS5466562A JP13382377A JP13382377A JPS5466562A JP S5466562 A JPS5466562 A JP S5466562A JP 13382377 A JP13382377 A JP 13382377A JP 13382377 A JP13382377 A JP 13382377A JP S5466562 A JPS5466562 A JP S5466562A
Authority
JP
Japan
Prior art keywords
high pressure
nozzles
decontaminating
pressure vessel
reactor pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP13382377A
Other languages
Japanese (ja)
Other versions
JPS5654600B2 (en
Inventor
Yoichi Uchiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebara Corp
Original Assignee
Ebara Infilco Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ebara Infilco Co Ltd filed Critical Ebara Infilco Co Ltd
Priority to JP13382377A priority Critical patent/JPS5466562A/en
Publication of JPS5466562A publication Critical patent/JPS5466562A/en
Publication of JPS5654600B2 publication Critical patent/JPS5654600B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Cleaning In General (AREA)

Abstract

PURPOSE: To provide the subject method of injecting a high pressure fluid while retating a nozzle fitted to a symmetric position with respect to the central axis to wash the inner surface of the vessel and the well wall surface, thereby to secure the safety against contamination.
CONSTITUTION: A washing device 12 comprises a high pressure hose 1 introducing high pressure water, a high pessure hose mount 2, a rotatable swivel joint 3, a central shaft and like, more than two mountable nozzle holders 5 being mounted one the central shaft 4, and, moreover, nozzles 9 being arranged on the nozzle holders 5. This device 12 is suspended from the center of the reactor vessel by means of a crane, and the shaft 4 is rotated by a motor 7. Simultaneously, high pressure water is continuously injected from nozzles 9 through a pump 13.
COPYRIGHT: (C)1979,JPO&Japio
JP13382377A 1977-11-08 1977-11-08 Method of decontaminating reactor pressure vessel Granted JPS5466562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13382377A JPS5466562A (en) 1977-11-08 1977-11-08 Method of decontaminating reactor pressure vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13382377A JPS5466562A (en) 1977-11-08 1977-11-08 Method of decontaminating reactor pressure vessel

Publications (2)

Publication Number Publication Date
JPS5466562A true JPS5466562A (en) 1979-05-29
JPS5654600B2 JPS5654600B2 (en) 1981-12-26

Family

ID=15113864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13382377A Granted JPS5466562A (en) 1977-11-08 1977-11-08 Method of decontaminating reactor pressure vessel

Country Status (1)

Country Link
JP (1) JPS5466562A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6138599A (en) * 1984-07-31 1986-02-24 株式会社日立製作所 Washer for liquid in tank and usage thereof
JPS62180006A (en) * 1986-02-04 1987-08-07 Daido Steel Co Ltd Method and apparatus for cleaning tank
JPH0578738A (en) * 1991-09-20 1993-03-30 Hitachi Ltd Water jet peening device for improving residual stress internal structure in nuclear reactor and instrument for measuring residual stress
JPH05195052A (en) * 1992-01-24 1993-08-03 Hitachi Ltd Water jet peening method and device therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6138599A (en) * 1984-07-31 1986-02-24 株式会社日立製作所 Washer for liquid in tank and usage thereof
JPS62180006A (en) * 1986-02-04 1987-08-07 Daido Steel Co Ltd Method and apparatus for cleaning tank
JPH0578738A (en) * 1991-09-20 1993-03-30 Hitachi Ltd Water jet peening device for improving residual stress internal structure in nuclear reactor and instrument for measuring residual stress
JPH05195052A (en) * 1992-01-24 1993-08-03 Hitachi Ltd Water jet peening method and device therefor

Also Published As

Publication number Publication date
JPS5654600B2 (en) 1981-12-26

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