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公开(公告)号：US12125602B2
公开(公告)日：2024-10-22
申请号：US17414006
申请日：2019-12-24
发明人： Young Hwan Hwang , Seok-Ju Hwang , Mi-Hyun Lee , Cheon-Woo Kim
摘要： A method for decommissioning a nuclear facility includes: floating a nuclear reactor pressure vessel above a cavity; positioning a mounting device on bio-protective concrete to cover the cavity with the mounting device; mounting a lower portion of the nuclear reactor pressure vessel on the mounting device; and cutting and decommissioning the nuclear reactor pressure vessel mounted on the mounting device.
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公开(公告)号：US20240266079A1
公开(公告)日：2024-08-08
申请号：US18210437
申请日：2023-06-15
发明人： Mehul SHAH , Rida MILANY , Koroush SHIRVAN
摘要： Thorium-based fuel bundles according to one or more embodiments of the present invention provide a fresh fuel bundle comprising a first ring of fuel pins and a second ring of fuel pins. Each ring fuel pin has a fuel composition comprising uranium and thorium. The first ring fuel pins differ from the second ring fuel pins in each of the thorium wt %, uranium wt %, and 235U enrichment.
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公开(公告)号：US11984231B2
公开(公告)日：2024-05-14
申请号：US17554967
申请日：2021-12-17
申请人： NuScale Power, LLC
发明人： Michael Keller , Ross I. Snuggerud
IPC分类号： G21C19/32 , G21C1/08 , G21C1/32 , G21C13/02 , G21C17/10 , G21C19/02 , G21C19/18 , G21C19/20 , G21C19/07
CPC分类号： G21C19/18 , G21C1/08 , G21C1/32 , G21C13/02 , G21C17/10 , G21C19/02 , G21C19/20 , G21C19/32 , G21C19/07 , Y02E30/30
摘要： An in-core instrumentation system for a reactor module includes a plurality of in-core instruments connected to a containment vessel and a reactor pressure vessel at least partially located within the containment vessel. A reactor core is housed within a lower head that is removably attached to the reactor pressure vessel, and lower ends of the in-core instruments are located within the reactor core. The in-core instruments are configured such that the lower ends are concurrently removed from the reactor core as a result of removing the lower head from the reactor pressure vessel.
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公开(公告)号：US11955248B2
公开(公告)日：2024-04-09
申请号：US17466109
申请日：2021-09-03
发明人： Charles Lee Heck , Michael M. Cook
摘要： A method and apparatus of limiting power of a boiling water nuclear reactor system includes a reactor pressure vessel, a reactor core disposed in the reactor pressure vessel, a core shroud surrounding the reactor core, a downcomer region disposed between an inner surface of the reactor pressure vessel and the core shroud, a steam line connected to an upper end of the reactor pressure vessel and a condenser system that receives steam from the reactor pressure vessel. A portion of the condenser system condensate is returned to the reactor pressure vessel of the boiling water reactor inside the core barrel above the core rather than into the downcomer. Returning the condensate in this way increases the effectiveness of an isolation condenser system or if the condensate is a portion of the feedwater from the main condenser it provides an effective means to regulate core flow and core power.
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公开(公告)号：US11901091B2
公开(公告)日：2024-02-13
申请号：US17366997
申请日：2021-07-02
申请人： BWXT mPower, Inc.
发明人： Scott J. Shargots
IPC分类号： G21C7/12 , G21C7/08 , G21C7/36 , G21C13/00 , G21C15/243 , G21C17/116 , G21C1/32 , G21C7/16 , G21C7/14 , G21C1/08
CPC分类号： G21C7/12 , G21C1/32 , G21C7/08 , G21C7/14 , G21C7/16 , G21C7/36 , G21C13/00 , G21C15/243 , G21C17/116 , G21C1/086 , Y02E30/30
摘要： A power distribution plate (PDP) sits on top of a support plate. Control rod drive mechanism (CRDM) units are mounted on top of the PDP, but the PDP is incapable of supporting the weight of the CRDM units and instead transfers the load to a support plate. The PDP has receptacles which receive cable modules each including mineral insulated (MI) cables, the MI cables being connected with the CRDM units. The PDP may further include a set of hydraulic lines underlying the cable modules and connected with the CRDM units. The cable modules in their receptacles define conduits or raceways for their MI cables and for any underlying hydraulic lines.
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公开(公告)号：US11823806B2
公开(公告)日：2023-11-21
申请号：US17257913
申请日：2019-07-03
发明人： Young Hwan Hwang , Mi-Hyun Lee , Sung-Hoon Hong , Cheon-Woo Kim
摘要： A nuclear reactor dismantlement system according to an embodiment includes bio-protective concrete including a first space into which a reactor is inserted and a second space that is connected to the first space and is expanded in the first space, a moving device that is positioned in the second space and moves the reactor, and a cutting device that is positioned in the second space and cuts the reactor.
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公开(公告)号：US11779702B2
公开(公告)日：2023-10-10
申请号：US16621289
申请日：2018-08-28
申请人： BAYER HEALTHCARE LLC
发明人： William Barone , Michael Spohn , Chelsea Marsh , Michael McDermott , John Volkar
IPC分类号： A61M5/168 , A61M5/00 , A61M5/14 , A61M5/145 , A61M5/142 , G21C7/10 , G21C7/24 , G21C1/08 , G21C3/07 , G21C3/328 , G21C11/08 , C23C30/00
CPC分类号： A61M5/16827 , A61M5/007 , A61M5/1408 , A61M5/14546 , A61M5/14566 , A61M5/16854 , G21C7/10 , G21C7/24 , A61M2005/14208 , A61M2205/3341 , C23C30/00 , G21C1/08 , G21C3/07 , G21C3/328 , G21C11/08
摘要： A method for dynamic pressure control during a multiphase injection is described wherein the pressures of fluids in the various reservoirs of a fluid delivery system are controlled to provide desired fluid delivery parameters. The methods include advancing the first drive member to expel the first fluid from the first reservoir into a conduit, wherein the fluid is pressurized to a first fluid pressure; measuring the first fluid pressure to provide a target value; while the second reservoir is in fluid isolation from the conduit, advancing or retracting the second drive member to increase or decrease the fluid pressure of the second fluid in the second reservoir to the target value; placing the second reservoir in fluid communication with the conduit; and advancing the second drive member to expel the second fluid from the second reservoir into the conduit.
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公开(公告)号：US11742099B2
公开(公告)日：2023-08-29
申请号：US16888766
申请日：2020-05-31
IPC分类号： G21C13/036 , G21C9/004 , G21C1/08 , G21C1/02 , G21C15/18 , G21C13/02 , G21C9/016 , G21C9/033 , G21C17/04 , G21C13/093 , G21C13/087
CPC分类号： G21C9/004 , G21C1/028 , G21C1/086 , G21C9/016 , G21C13/02 , G21C15/18 , G21C9/033 , G21C13/087 , G21C13/093 , G21C17/042
摘要： Nuclear reactors have very few systems for significantly reduced failure possibilities. Nuclear reactors may be boiling water reactors with natural circulation-enabling heights and smaller, flexible energy outputs in the 0-350 megawatt-electric range. Reactors are fully surrounded by an impermeable, high-pressure containment. No coolant pools, heat sinks, active pumps, or other emergency fluid sources may be present inside containment; emergency cooling, like isolation condenser systems, are outside containment. Isolation valves integral with the reactor pressure vessel provide working and emergency fluid through containment to the reactor. Isolation valves are one-piece, welded, or otherwise integral with reactors and fluid conduits having ASME-compliance to eliminate risk of shear failure. Containment may be completely underground and seismically insulated to minimize footprint and above-ground target area.
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公开(公告)号：US11450442B2
公开(公告)日：2022-09-20
申请号：US16858552
申请日：2020-04-24
发明人： Mark Lloyd Adams
摘要： An exemplary embodiment can include an apparatus including: an internal-external hybrid nuclear reactor, which can include: at least one reciprocating internal engine; and at least one external reactor integrated with said at least one reciprocating internal engine. The reciprocating engine can receive nanofuel (including moderator, nanoscale molecular dimensions & molecular mixture) internally in an internal combustion engine that releases nuclear energy. A method of operating the hybrid nuclear reactor can include operating the reciprocating internal engine loaded with nanofuel in spark or compression ignition mode. A method of cycling the reciprocating internal engine, can include compressing nanofuel; igniting nanofuel; capturing energy released in nanofuel, which is also the working fluid; and using the working fluid to perform mechanical work or generate heat.
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公开(公告)号：US20210202114A1
公开(公告)日：2021-07-01
申请号：US16729968
申请日：2019-12-30
发明人： Gary M. ANTHONY
摘要： A boiling water reactor system includes a reactor vessel including a reactor core. A steam line is in communication with the reactor core and a turbine that is connected to an electrical generator. A dry standby liquid control system includes a standby vessel containing dry powder containing boron and including a high pressure water supply in communication with the standby vessel via a first closed valve, wherein the standby vessel is in communication with the reactor vessel via a second closed valve.
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