JPS5479387A - Method of exchanging reactor core container of pressure pipe type reactor - Google Patents
Method of exchanging reactor core container of pressure pipe type reactorInfo
- 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
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
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) |
-
1977
- 1977-12-05 JP JP14505877A patent/JPS5479387A/en active Pending
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