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公开(公告)号：US11942227B2
公开(公告)日：2024-03-26
申请号：US17008809
申请日：2020-09-01
发明人： Sung-jae Yi , Hyun Sik Park
摘要： A passive cooling system for a nuclear reactor includes an energy release space in which a reactor vessel is accommodated, an energy absorbing space separated from the energy release space, and an energy transfer space above the energy absorbing space and configured to absorb and cool heat transferred from the reactor vessel and discharge the absorbed heat to an outside of the system through an outer wall thereof. The passive cooling system further includes a first cooling flow path configured to transfer the heat in the reactor vessel to the energy transfer space, a pressure balance pipe configured to transfer the pressure in the energy release space to the energy absorbing space therethrough, and a coolant spray pipe configured to transfer the cooling water in the energy absorbing space pressurized by the pressure balance pipe to the energy transfer space may be provided.
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公开(公告)号：US20230298773A1
公开(公告)日：2023-09-21
申请号：US17864311
申请日：2022-07-13
申请人： Korea Advanced Institute of Science and Technology , IUCF-HYU (Industry-University Corporation Foundation Hanyang University)
发明人： Yong Hee KIM , Sung Joong KIM , Won Jun CHOI , Juhyeong LEE , Seongdong JANG , Taesuk OH , Eunhyug LEE
摘要： The present invention relates to a molten salt-metal reactor for implementing a micro-reactor, and more specifically, to a molten salt-metal reactor including a liquid metal nuclear fuel and a molten salt coolant, wherein the molten salt coolant is disposed in an upper portion of the liquid metal nuclear fuel such that the heat generated from the nuclear fuel is transferred to the molten salt coolant and cooled.
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公开(公告)号：US11763954B2
公开(公告)日：2023-09-19
申请号：US17730420
申请日：2022-04-27
发明人： David H. Hinds
IPC分类号： G21C13/10 , G21C15/12 , E04H7/18 , G21C13/028 , G21C13/093 , G21C13/087
CPC分类号： G21C15/12 , E04H7/18 , G21C13/028 , G21C13/093 , G21C13/087 , G21C13/10
摘要： An integrated passive cooling containment structure for a nuclear reactor includes a concentric arrangement of an inner steel cylindrical shell and an outer steel cylindrical shell that define both a lateral boundary of a containment environment of the nuclear reactor that is configured to accommodate a nuclear reactor and an annular gap space between the inner and outer steel cylindrical shells, a concrete donut structure at a bottom of the annular gap space, and a plurality of concrete columns spaced apart azimuthally around a circumference of the annular gap and extending in parallel from a top surface of the concrete donut structure to a top of the annular gap space. The outer and inner steel cylindrical shells and the concrete donut structure at least partially define one or more coolant channels extending through the annular gap space.
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公开(公告)号：US11728052B2
公开(公告)日：2023-08-15
申请号：US17387320
申请日：2021-07-28
申请人： TerraPower, LLC
发明人： Anselmo T. Cisneros, Jr. , Francesco Deleo , Michael J. Edwards , Gregory T. Markham , James A. Roecker , Noor Ullah , Daniel J. Walter , Kent E. Wardle
IPC分类号： G21C15/12 , G21C3/54 , G21C11/06 , G21C15/243
CPC分类号： G21C15/12 , G21C3/54 , G21C11/06 , G21C15/243
摘要： Alternative designs for a modular test reactor are presented. In one aspect, a molten fuel salt nuclear reactor includes a vessel defining a reactor volume, the vessel being open-topped and otherwise having no penetrations. A neutron reflector is provided within the vessel and displacing at least some of the reactor volume, the neutron reflector defining a reactor core volume. A plurality of heat exchangers are contained within the vessel above the neutron reflector. A flow guide assembly is provided within the neutron reflector that includes a draft tube draft tube separating a central portion of the reactor core volume from an annular downcomer duct. Fuel salt circulates from the reactor core volume, through the heat exchangers, into the downcomer duct and then back into the reactor core volume.
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公开(公告)号：US20220375636A1
公开(公告)日：2022-11-24
申请号：US17880319
申请日：2022-08-03
发明人： Dalin Zhang , Dianqiang Jiang , Xinyu Li , Xin Min , Chenglong Wang , Wenxi Tian , Suizheng Qiu , Guanghui Su
摘要： A multipurpose small modular fluoride-salt-cooled high-temperature reactor energy system includes: a reactor body system, a passive residual heat removal system, a compact supercritical carbon dioxide Brayton cycle system, a secondary loop system, and a comprehensive utilization supercritical carbon dioxide Brayton cycle system. Nuclear reactor adopts helical cruciform fuel and graphite matrix material filled with TRISO element, which can improve heat transfer performance and inherent safety. Thermal efficiency of the compact supercritical carbon dioxide Brayton cycle system is above 48%, which can be used in places with limited space. Thermal efficiency of the comprehensive utilization supercritical carbon dioxide Brayton cycle system is above 54%, which can be applied to places with abundant resources. The present invention not only realizes efficient and compact utilization of energy, but also meets the needs of multiple purposes, integrated production, storage and conversion of energy.
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公开(公告)号：US20220254527A1
公开(公告)日：2022-08-11
申请号：US17730420
申请日：2022-04-27
发明人： David H. HINDS
IPC分类号： G21C15/12 , E04H7/18 , G21C13/028 , G21C13/093
摘要： An integrated passive cooling containment structure for a nuclear reactor includes a concentric arrangement of an inner steel cylindrical shell and an outer steel cylindrical shell that define both a lateral boundary of a containment environment of the nuclear reactor that is configured to accommodate a nuclear reactor and an annular gap space between the inner and outer steel cylindrical shells, a concrete donut structure at a bottom of the annular gap space, and a plurality of concrete columns spaced apart azimuthally around a circumference of the annular gap and extending in parallel from a top surface of the concrete donut structure to a top of the annular gap space. The outer and inner steel cylindrical shells and the concrete donut structure at least partially define one or more coolant channels extending through the annular gap space.
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公开(公告)号：US20220215975A1
公开(公告)日：2022-07-07
申请号：US17138217
申请日：2020-12-30
摘要： A nuclear power reactor which includes passive cooling and radiation scrubbing. The reactor includes a first containment member which is buried in the ground. A second containment member is positioned in the first containment member and has a reactor vessel therein. The discharge side of the reactor vessel is connected to a heat exchanger which drives a turbine which drives a device such as a generator. A source of water is provided which gravity feeds cooling water to the interior of the first containment member in the event of reactor overheating or over-pressurization. A radiation scrubber is provided for scrubbing radiation which may be in the first containment member or the second containment member.
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公开(公告)号：US11355255B2
公开(公告)日：2022-06-07
申请号：US16749872
申请日：2020-01-22
发明人： Joo-Hwan Park , Sung Il Kim , Kwang Soon Ha , Byeong Hee Lee
摘要： Provided are a system and method for reducing the atmospheric release of radioactive materials caused by a severe accident. The system includes a steam generator disposed in a containment building, configured to generate steam by using heat of a coolant heated in a nuclear reactor, and connected to a turbine through a main steam line, a decontamination tank connected to the main steam line through a connection line and containing decontamination water for decontaminating the steam delivered from the steam generator and reducing atmospheric release of radioactive materials when a severe accident occurs, and a depressurizing power generation unit disposed on the connection line and configured to generate emergency power while depressurizing the steam delivered from the steam generator toward the decontamination tank when the severe accident occurs.
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公开(公告)号：US20220037043A1
公开(公告)日：2022-02-03
申请号：US17443991
申请日：2021-07-29
发明人： Franck MORIN , Gilles AVAKIAN
摘要： A safety method for a reactor including a primary circuit and a secondary circuit fluidly isolated from the primary circuit, and a steam generator, and in the event of a meltdown of the core of the reactor with the formation of a corium bath in a bottom of the vessel and the formation of a liquid metallic layer at the surface of the corium bath, the method includes: a break-up by explosion of the fluidic insulation to set the secondary circuit in fluidic communication with the primary circuit so that the secondary fluid follows the primary circuit to flow inside the vessel over the liquid metallic layer of the corium bath.
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公开(公告)号：US11238998B2
公开(公告)日：2022-02-01
申请号：US16615204
申请日：2018-05-23
发明人： Youngin Kim , Seungyeob Ryu , Joohyung Moon , Soojai Shin , Seok Kim , Hyunjun Cho , Juhyeon Yoon , Kilsung Kwon
摘要： An in-vessel cooling and power generation system according to the present disclosure may include a small scale reactor vessel, a heat exchange section provided inside the reactor vessel, and formed to supply supercritical fluid to receive heat from a reactor coolant system in the reactor vessel, an electric power production section comprising a supercritical turbine formed to produce electric energy using the energy of the supercritical fluid whose temperature has increased while receiving heat from the reactor coolant system, a cooling section configured to exchange heat with the supercritical fluid discharged after driving the supercritical turbine to shrink a volume of the supercritical fluid, wherein the supercritical fluid that has received heat from the reactor coolant system in the heat exchange section is formed to circulate through the electric power production section, and the cooling section.
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