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1.发明授权
公开(公告)号：EP1888988B1
公开(公告)日：2018-10-24
申请号：EP06784631.1
申请日：2006-06-06
发明人： SINGH, Krishna, P.
CPC分类号： G21F5/005 , F26B5/04 , F26B21/006 , F26B21/08 , F26B21/14 , G21C19/32 , G21F5/008 , G21F9/28
摘要： A system and method for drying cavities loaded with high level waste (“HLW”) is devised. The invention utilizes a non-intrusive procedure that is based on monitoring the dew point temperature of a non-reactive gas that is circulated through the cavity. In one aspect, the invention is a method comprising: a) flowing a non-reactive gas through the cavity; b) repetitively measuring the dew point temperature of the non-reactive gas exiting the cavity; and c) upon the dew point temperature of the non-reactive gas exiting the cavity reaching and remaining below a predetermined dew point temperature for a predetermined time, discontinuing the flow of the non-reactive gas and sealing the cavity. In another aspect, the invention is a system designed to carry out the method.
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2.发明授权METHOD FOR PREPARING A CONTAINER LOADED WITH WET RADIOACTIVE ELEMENTS FOR DRY STORAGE 有权一种装载用湿放射性元素干燥储存的容器的方法
公开(公告)号：EP2227665B1
公开(公告)日：2018-04-11
申请号：EP08873562.6
申请日：2008-12-22
IPC分类号： G21F5/008 , F26B3/00 , F26B5/04 , F26B5/12 , F26B21/08 , G21F5/06 , F26B21/14 , G21C19/32 , G21F9/34
CPC分类号： G21F5/06 , F26B5/04 , F26B5/12 , F26B21/08 , F26B21/14 , G21C19/32 , G21F5/005 , G21F5/008 , G21F9/28 , G21F9/34
摘要： A method of preparing a canister having a cavity loaded with wet radioactive elements for dry storage, the method comprising: (a) providing a gas circulation system comprising a condensing module, a vacuum module, a gas circulator module; (b) connecting the gas circulation system to the canister so as to form a hermetically sealed closed-loop path that includes the cavity; (c) filling the hermetically sealed closed-loop path with a non-reactive gas; (d) circulating the non-reactive gas through the hermetically sealed closed-loop path until the condensing module is no longer removing substantial amounts of water from the circulating non-reactive gas, wherein the vacuum module is sealed off from the hermetically sealed closed-loop path during step (d); (e) discontinuing the circulation of the non-reactive gas through the hermetically sealed closed-loop path; (f) fluidly coupling the vacuum module to the cavity and fluidly isolating the cavity and the vacuum module; and (g) applying a vacuum pressure to the cavity via the vacuum module so as to create a sub-atmospheric pressure within the cavity until a desired vapor pressure is achieved in the cavity of the canister.
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公开(公告)号：EP4073823A2
公开(公告)日：2022-10-19
申请号：EP20899390.7
申请日：2020-12-08
申请人： Holtec International
发明人： SINGH, Krishna, P.
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公开(公告)号：EP3364136B1
公开(公告)日：2019-10-09
申请号：EP18166586.0
申请日：2008-12-22
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5.发明授权
公开(公告)号：EP1849163B1
公开(公告)日：2014-07-30
申请号：EP06734917.5
申请日：2006-02-13
发明人： SINGH, Krishna, P.
IPC分类号： G21C19/00
CPC分类号： G21F5/10 , G21F7/015 , G21Y2002/301 , G21Y2002/304 , G21Y2002/305 , G21Y2002/50 , G21Y2004/30 , G21Y2004/40
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6.发明公开
公开(公告)号：EP2754157A1
公开(公告)日：2014-07-16
申请号：EP12829768.6
申请日：2012-09-10
发明人： SINGH, Krishna, P.
IPC分类号： G21C19/00
摘要： A ventilated system for storing high level radioactive waste, such as used nuclear fuel, in a below-grade environment, in one embodiment, the invention is a ventilated system comprising an air-intake shell and a plurality of storage shells that are interconnected by a network of pipes configured to achieve double redundancy and/or improved air delivery. In another embodiment, the invention is a ventilated system that utilizes a mass of low level radioactive waste contained in a hermetically sealed enclosure cavity, the low level radioactive waste providing radiation shielding for high level radioactive waste stored in a storage cavity of said ventilated system.
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公开(公告)号：EP3918615A2
公开(公告)日：2021-12-08
申请号：EP20794847.2
申请日：2020-02-03
申请人： Holtec International
发明人： SINGH, Krishna, P.
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公开(公告)号：EP2839484A1
公开(公告)日：2015-02-25
申请号：EP13777977.3
申请日：2013-04-18
发明人： SINGH, Krishna, P.
摘要： A module for storing high level radioactive waste includes an outer shell, having a hermetically closed bottom end, and an inner shell forming a cavity and being positioned inside the outer shell to form a space therebetween. At least one divider extends from the top to the bottom of the inner shell to create a plurality of inlet passageways through the space, each inlet passageway connecting to a bottom portion of the cavity. A plurality of inlet ducts each connect at least one of the inlet passageways and ambient atmosphere, and each includes an inlet duct cover affixed atop a surrounding inlet wall, the inlet wall being peripherally perforated. A removable lid is positioned atop the inner shell and has at least one outlet passageway connecting the cavity and the ambient atmosphere, the lid and the top of the inner shell being configured to form a hermetic seal therebetween.
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10.发明公开CASK APPARATUS, SYSTEM AND METHOD FOR TRANSPORTING AND/OR STORING HIGH LEVEL WASTE 审中-公开容纳装置，对于传输和/或存储放射性废物高的系统和方法
公开(公告)号：EP2425436A2
公开(公告)日：2012-03-07
申请号：EP10772591.3
申请日：2010-04-28
发明人： SINGH, Krishna, P.
IPC分类号： G21F5/00
摘要： A thermally conductive cask for storing high level radioactive waste. In one aspect the invention can be a thermally conductive cask comprising: a gamma shielding cylindrical body forming a cavity for receiving high level radioactive waste and having an outer surface formed of a first material having a first thermal conductivity; a neutron shielding cylindrical body surrounding the gamma shielding cylindrical body and having a layer formed of a second material having a second thermal conductivity that is greater than the first thermal conductivity, the layer forming an inner surface of the neutron shielding cylindrical body; and wherein the layer is clad to the outer surface of the gamma shielding cylindrical body.
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