JPS5479387A - Method of exchanging reactor core container of pressure pipe type reactor - Google Patents

Method of exchanging reactor core container of pressure pipe type reactor

Info

Publication number
JPS5479387A
JPS5479387A JP14505877A JP14505877A JPS5479387A JP S5479387 A JPS5479387 A JP S5479387A JP 14505877 A JP14505877 A JP 14505877A JP 14505877 A JP14505877 A JP 14505877A JP S5479387 A JPS5479387 A JP S5479387A
Authority
JP
Japan
Prior art keywords
reactor core
core container
container
light water
shielding
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.)
Pending
Application number
JP14505877A
Other languages
Japanese (ja)
Inventor
Yutaka Ueda
Keiji Miyamoto
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP14505877A priority Critical patent/JPS5479387A/en
Publication of JPS5479387A publication Critical patent/JPS5479387A/en
Pending 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 quantity of the irradiation of radiation, by exchanging under a condition that light water fills to a reflex body container, and by accepting a shielding effect by a light water layer.
CONSTITUTION: When working, a hatch 1 of a top portion of a reactor core container 6 is demounted, and a reactor core 2 is taken out into a shielding pool 3. A radiation shielding block 14 is inserted into a lower portion of the reactor core container 6 to block said portion, and heavy water 5 in a reflex body container 4 is extracted and replaced with light water while light water in the reactor core container 6 is extracted to a lower piping system. Connection between a lower end flange 7 and a lower primary system piping 17, the connection of an upper bellows 9 in an inspection hole 8 and the connection of a bottom cover bellows 10 in the shielding pool 3 are each released while removing bolts and nuts 11 for sealing the lower portion, a gasket 11' between flanges 15, 16 is provided with a self-sealing effect, a drain pan 12 is mounted and the reactor core container 6 is extracted.
COPYRIGHT: (C)1979,JPO&Japio
JP14505877A 1977-12-05 1977-12-05 Method of exchanging reactor core container of pressure pipe type reactor Pending JPS5479387A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14505877A JPS5479387A (en) 1977-12-05 1977-12-05 Method of exchanging reactor core container of pressure pipe type reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14505877A JPS5479387A (en) 1977-12-05 1977-12-05 Method of exchanging reactor core container of pressure pipe type reactor

Publications (1)

Publication Number Publication Date
JPS5479387A true JPS5479387A (en) 1979-06-25

Family

ID=15376396

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14505877A Pending JPS5479387A (en) 1977-12-05 1977-12-05 Method of exchanging reactor core container of pressure pipe type reactor

Country Status (1)

Country Link
JP (1) JPS5479387A (en)

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