公开(公告)号：US20190074097A1

公开(公告)日：2019-03-07

申请号：US15739400

申请日：2016-08-25

申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Tomohisa Okamoto ,  Noboru Kurokawa ,  Toshiya Komuro ,  Toshimitsu Umakoshi ,  Naotaka Komatsu

IPC分类号： G21F5/005 ,  G01T1/167

摘要： A container accommodation condition determination method of determining an accommodation condition for accommodating a plurality of waste pieces, obtained by at least cutting radioactive waste, into at least one storage container, for obtaining at least one waste body by accommodating the plurality of waste pieces into the at least one storage container, includes: a step of, assuming, for each of a plurality of arrangement condition candidates specifying the storage container in which each of the waste pieces is to be stored and an accommodation position inside the storage container, that the waste pieces are arranged inside the storage container in accordance with the arrangement condition candidate, selecting at least one of the arrangement condition candidates which satisfy a limiting condition required for the waste body in each of the storage containers; a step of calculating a necessary storage container number which is the number of the storage container required to accommodate the plurality of waste pieces in accordance with the selected arrangement condition candidate; and a step of specifying the arrangement condition candidate such that the necessary storage container number is minimum.

公开(公告)号：US20180190400A1

公开(公告)日：2018-07-05

申请号：US15739484

申请日：2016-07-15

申请人： MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Tomohisa Okamoto ,  Toshiya Komuro ,  Noboru Kurokawa ,  Toshimitsu Umakoshi

IPC分类号： G21C19/04 ,  G21D1/00 ,  G21F9/30 ,  G21C19/20

CPC分类号： G21C19/04 ,  G21C19/02 ,  G21C19/07 ,  G21C19/207 ,  G21D1/003 ,  G21F9/30 ,  Y02E30/40

摘要： A method for decommission of a nuclear power plant includes: a step of removing fuel from a reactor vessel and storing the fuel in a fuel storage pool; a step of carrying the fuel out from the fuel storage pool; a step of, after removing the fuel from the reactor vessel, taking a reactor internal structure inside the reactor vessel out to a work pool storing water and being positioned above the reactor vessel, and decommissioning the reactor internal structure under the water stored in the work pool; a step of carrying the decommissioned reactor internal structure out from the work pool; and a step of, after carrying the reactor internal structure out from the work pool, draining the water from the work pool. The step of taking out and decommissioning the reactor internal structure is started before completion of carrying out of the fuel from the fuel storage pool.