JPS5464295A - Inside inspecting and repairing device for nuclear reactor - Google Patents

Inside inspecting and repairing device for nuclear reactor

Info

Publication number
JPS5464295A
JPS5464295A JP12972777A JP12972777A JPS5464295A JP S5464295 A JPS5464295 A JP S5464295A JP 12972777 A JP12972777 A JP 12972777A JP 12972777 A JP12972777 A JP 12972777A JP S5464295 A JPS5464295 A JP S5464295A
Authority
JP
Japan
Prior art keywords
shield
radioactive rays
nuclear reactor
shields
exposure
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
JP12972777A
Other languages
Japanese (ja)
Other versions
JPS578434B2 (en
Inventor
Toshio Miyaki
Katsuhisa Hayashi
Hisami Motokado
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP12972777A priority Critical patent/JPS5464295A/en
Publication of JPS5464295A publication Critical patent/JPS5464295A/en
Publication of JPS578434B2 publication Critical patent/JPS578434B2/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

  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

PURPOSE: To reduce the exposure of a worker to radioactive rays thereby to enhance the working safety by shielding the planar shield, which can be easily brought into and out of an inside inspecting and repairing device, and a shield having a C- shaped cross-section from the radioactive rays from a core spray piping.
CONSTITUTION: Above the outer circumference of a bottomed cylindrical lower shield 20 above a shroud 1 surrounding a core, a shield 42, which has a C-shaped cross-section having an inner size larger than the OD of a core spray piping 3, is mounted to face the piping 3 such that its open side is directed to face the inner wall of the nuclear reactor pressure container. There is mounted below the outer circumference of the lower shield 20a shield 41 which is composed of a sector member having an outer circumferential shape fitted in the inner wall of the container 6, An operating rod 43 is made to extend through the clearance between the shields 41 and 42 such that these shields 41 and 42 are made radially movable. During the works, therefore, it is sufficient to merely open the inner and outer doors 49 and 50 of the shield 20 to their minimum openings thereby to reduce the exposure to the radioactive rays.
COPYRIGHT: (C)1979,JPO&Japio
JP12972777A 1977-10-31 1977-10-31 Inside inspecting and repairing device for nuclear reactor Granted JPS5464295A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12972777A JPS5464295A (en) 1977-10-31 1977-10-31 Inside inspecting and repairing device for nuclear reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12972777A JPS5464295A (en) 1977-10-31 1977-10-31 Inside inspecting and repairing device for nuclear reactor

Publications (2)

Publication Number Publication Date
JPS5464295A true JPS5464295A (en) 1979-05-23
JPS578434B2 JPS578434B2 (en) 1982-02-16

Family

ID=15016696

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12972777A Granted JPS5464295A (en) 1977-10-31 1977-10-31 Inside inspecting and repairing device for nuclear reactor

Country Status (1)

Country Link
JP (1) JPS5464295A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60207091A (en) * 1984-03-31 1985-10-18 株式会社東芝 Shielding device in nuclear reactor
JPH0868889A (en) * 1994-08-31 1996-03-12 Hitachi Ltd Replacing method for reactor internal structure
JP2002014192A (en) * 2000-06-29 2002-01-18 Toshiba Corp Radiation shielding body
JP4664468B2 (en) * 2000-05-31 2011-04-06 株式会社東芝 Radiation shield and its installation method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8878682B2 (en) 2009-10-16 2014-11-04 Franklin Fueling Systems, Inc. Method and apparatus for detection of phase separation in storage tanks using a float sensor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756915A (en) * 1971-01-25 1973-09-04 Maximov L Rnals device for detecting flaws on nuclear reactor inner surfaces and inte

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756915A (en) * 1971-01-25 1973-09-04 Maximov L Rnals device for detecting flaws on nuclear reactor inner surfaces and inte

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60207091A (en) * 1984-03-31 1985-10-18 株式会社東芝 Shielding device in nuclear reactor
JPH0868889A (en) * 1994-08-31 1996-03-12 Hitachi Ltd Replacing method for reactor internal structure
JP4664468B2 (en) * 2000-05-31 2011-04-06 株式会社東芝 Radiation shield and its installation method
JP2002014192A (en) * 2000-06-29 2002-01-18 Toshiba Corp Radiation shielding body
JP4634579B2 (en) * 2000-06-29 2011-02-16 株式会社東芝 Radiation shield

Also Published As

Publication number Publication date
JPS578434B2 (en) 1982-02-16

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