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    ENVIRONMENTALLY SEQUESTERED SPENT FUEL POOL
    2.
    发明公开
    ENVIRONMENTALLY SEQUESTERED SPENT FUEL POOL 有权
    环保排序的燃油池

    公开(公告)号：EP3204949A1

    公开(公告)日：2017-08-16

    申请号：EP15849173.8

    申请日：2015-10-07

    申请人： Holtec International

    发明人： SINGH, Krishna P.

    IPC分类号： G21F5/012 ,  G21C19/07 ,  G01M3/12

    CPC分类号： G21C19/07 ,  G21C13/10 ,  G21C17/002 ,  Y02E30/40

    摘要： An environmentally sequestered nuclear spent fuel pool in one embodiment includes sidewalls and a base slab that confine a water impoundment. The pool includes fuel racks containing spent fuel assemblies which heat the water via radioactive decay. A dual liner system enclosing the pool forms an impervious barrier providing redundant provisions for preventing leakage of contaminated pool water into the environment. An interstitial space is formed between the liners which may be maintained at sub-atmospheric pressures by a vacuum pump system that evacuates the space. By maintaining the pressure in the space at a negative pressure with corresponding boiling point less than the temperature of the pool water, any leakage through the inner-most liner into the interstitial space will vaporize and be extracted via the pump for signaling a potential leak in the liner system.

    摘要翻译： 在一个实施例中，环境封存的核乏燃料池包括限制蓄水的侧壁和底板。 游泳池包括装有乏燃料组件的燃料架，通过放射性衰变加热水。 封闭游泳池的双层衬垫系统形成了一个不透水的屏障，为防止受污染的池水泄漏到环境中提供了多余的措施。 在可以通过真空泵系统保持在低于大气压力的衬里之间形成间隙空间，该真空泵系统抽空该空间。 通过将空间中的压力保持在负压下并且相应的沸点低于池水的温度，通过最内层衬管进入间隙空间的任何泄漏都将蒸发并通过泵排出，用于指示潜在的泄漏 班轮系统。

    AN ULTRA-SAFE WET STORAGE FACILITY FOR NUCLEAR FUEL
    3.
    发明公开
    AN ULTRA-SAFE WET STORAGE FACILITY FOR NUCLEAR FUEL 审中-公开
    核燃料的超安全湿存储设施

    公开(公告)号：EP3195325A2

    公开(公告)日：2017-07-26

    申请号：EP15830356.0

    申请日：2015-08-04

    申请人： Holtec International

    发明人： SINGH, Krishna P. ,  RAJKUMAR, Joseph

    IPC分类号： G21C19/07 ,  G21C19/08 ,  G21C19/40

    CPC分类号： G21C19/07 ,  G21C19/08 ,  G21C19/32 ,  G21F5/14 ,  G21F7/00 ,  G21F7/005

    摘要： An autonomous facility for storing spent nuclear fuel in one embodiment includes a building forming an enclosed interior space containing a water-filled spent fuel pool. The pool includes fuel racks containing spent fuel assemblies which heat the water via radioactive decay. A passive cooling system includes a submerged heat exchanger in the pool and an air cooled heat exchanger located in ambient air outside the building at a higher elevation than the pool heat exchanger. A heat transfer working fluid circulates in a closed flow loop between the heat exchangers via unpumped natural gravity driven flow to cool the fuel pool. The air cooled heat exchanger may be enclosed in a concrete reinforced silo adjoining the building for impact protection. The building may include a cask pit formed integrally with the pool to allow fuel assembles to be removed from a transport cask and loaded into the fuel rack underwater.

    摘要翻译： 在一个实施例中，用于存储乏核燃料的自动设施包括形成封闭的内部空间的建筑物，该封闭的内部空间包含充水乏燃料池。 游泳池包括装有乏燃料组件的燃料架，通过放射性衰变加热水。 被动冷却系统包括池中的浸没式热交换器和位于建筑物外部的环境空气中的空气冷却热交换器，其高度高于池式热交换器。 传热工作流体在热交换器之间的闭合流动回路中通过未经自然重力驱动的流动循环来冷却燃料池。 空气冷却的热交换器可以封闭在与建筑物相邻的混凝土加强筒仓中以实现冲击保护。 该建筑物可以包括与水池一体形成的桶式容器，以允许将燃料组合件从运输容器中取出并装载到水下的燃料架中。

    NUCLEAR WASTE STORAGE CANISTERS
    7.
    发明公开
    NUCLEAR WASTE STORAGE CANISTERS 审中-公开

    公开(公告)号：EP4235700A3

    公开(公告)日：2023-11-29

    申请号：EP23180254.7

    申请日：2016-10-17

    申请人： Holtec International

    发明人： SINGH, Krishna P.

    IPC分类号： G21C19/00 ,  G21F5/008 ,  G21F5/10 ,  G21F5/12

    摘要： A dry storage systems for radioactive nuclear waste materials in one embodiment includes a canister having a tubular shell defining an internal cavity for storing nuclear waste material, a lid sealably welded to one end the shell, and an end closure attached to a second end of the shell. The end closure includes a base plate having an upturned peripheral annular closure flange. In one embodiment, a circumferentially-extending butt joint is formed between the closure flange and the shell second end which is hermetically seals by a full through-wall thickness butt weld. Various embodiments may further include secondary pressure retention barriers enclosing the canister or select portions thereof most susceptible to failure under certain conditions.

    APPARATUS, SYSTEM AND METHOD FOR STORING HIGH LEVEL WASTE
    10.
    发明公开
    APPARATUS, SYSTEM AND METHOD FOR STORING HIGH LEVEL WASTE 有权
    设备，系统和方法，用于存储高放射性废物

    公开(公告)号：EP2041753A2

    公开(公告)日：2009-04-01

    申请号：EP07812553.1

    申请日：2007-07-02

    申请人： Holtec International, Inc.

    发明人： SINGH, Krishna P. ,  AGACE, Stephen J.

    IPC分类号： G21F5/00

    CPC分类号： G21F5/008 ,  G21F5/005 ,  G21Y2002/201 ,  G21Y2002/304 ,  G21Y2004/30

    摘要： An apparatus, system and method for storing high level radioactive waste. In one aspect, the invention is a specially designed ring-like structure for providing neutron and gamma radiation shielding for high level radioactive materials that produce residual heat. In one embodiment, the ring-like structure is designed to be stackable upon itself so as to form a stacked structure that completely surrounds an internal containment boundary. In another embodiment, the ring-like structure is designed to have voids with specially designed geometries for receiving neutron absorbing material. In another aspect, the invention is a spacer apparatus designed to be located within the containment boundary to support the fuel basket and/or to improve conductive heat removal through the containment boundary. In yet another aspect, the invention is a fuel basket comprising one or more flux traps that regulate production of neutron radiation and plates constructed of a metal matrix composite material.