Title:
METHOD FOR DISMANTLING HEAT EXCHANGER INSTALLED IN BUILDING FOR NUCLEAR REACTOR
Document Type and Number:
WIPO Patent Application WO/2007/083401
Kind Code:
A1
Abstract:
[PROBLEMS] To minimize a contamination control area in the dismantlement of
a heat exchanger installed in a building for a nuclear reactor. [MEANS FOR SOLVING
PROBLEMS] A method for dismantling a heat exchanger installed in a building for
a nuclear reactor, comprising an introduction step of designating a partial
area within a building for a nuclear reactor as a contamination control area,
suspending a heat exchanger (100) in the building for a nuclear reactor by a jack
down unit provided in the building for a nuclear reactor, lowering a part of the
heat exchanger, and introducing the heat exchanger into the contamination control
area, a first cutting step of cutting a part of the suspended heat exchanger by
a first cutting unit (300) provided in a first cut area within the contamination
control area to separate divided cut pieces, a transfer step of transferring
the divided cut pieces from the first cut area into a second cut area within the
contamination control area by a transfer unit (500), a second cutting step of
chipping the transferred divided cut pieces by a second cutting unit (400) provided
in the second cut area, and a carrying-out step of packing the chipped divided
cut pieces into a vessel and carrying out the vessel from the contamination control
area.
Inventors:
KIMURA HIDEAKI (JP)
TOKIEDA KIYOSHI (JP)
TAKENAKA SATSUKI (JP)
YAMAZAKI SEIICHIRO (JP)
BLIGHT JOHN (FR)
TOKIEDA KIYOSHI (JP)
TAKENAKA SATSUKI (JP)
YAMAZAKI SEIICHIRO (JP)
BLIGHT JOHN (FR)
Application Number:
PCT/JP2006/308088
Publication Date:
July 26, 2007
Filing Date:
April 18, 2006
Export Citation:
Assignee:
JAPAN ATOMIC POWER (JP)
TOKYO ELECTRIC POWER CO (JP)
KAWASAKI PLANT SYSTEMS LTD (JP)
KIMURA HIDEAKI (JP)
TOKIEDA KIYOSHI (JP)
TAKENAKA SATSUKI (JP)
YAMAZAKI SEIICHIRO (JP)
BLIGHT JOHN (FR)
TOKYO ELECTRIC POWER CO (JP)
KAWASAKI PLANT SYSTEMS LTD (JP)
KIMURA HIDEAKI (JP)
TOKIEDA KIYOSHI (JP)
TAKENAKA SATSUKI (JP)
YAMAZAKI SEIICHIRO (JP)
BLIGHT JOHN (FR)
International Classes:
G21F9/30
Foreign References:
| JPH1046838A | 1998-02-17 | |||
| JP2003075589A | 2003-03-12 |
Other References:
See also references of EP 1993104A4
Attorney, Agent or Firm:
KISHIDA, Masayuki et al. (2-3 Marunouchi 2-chom, Chiyoda-ku Tokyo, JP)
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