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公开(公告)号：US20240337352A1
公开(公告)日：2024-10-10
申请号：US18679385
申请日：2024-05-30
发明人： Jon Craig , Michael Basic
CPC分类号： F17C1/12 , B01J2219/00155 , G21C11/08 , G21C13/02 , Y02E30/30
摘要： Systems and methods for insulating vessels are disclosed. In one or more embodiments, the disclosure provides a vessel insulation system (e.g., for use with a reactor or pressure vessel), which includes a floating ring sized to circumscribe a top nozzle of a vessel; a plurality of straps connected to the floating ring, the plurality of straps extending downward from the floating ring and being positioned to run along a length of the outer shell of the vessel; and a plurality of segmented rings positioned to circumscribe the outer shell of the vessel and connected to the plurality of straps. The plurality of segmented rings is configured to support an insulation material circumscribing the outer shell of the vessel, which can provide effective securement of the insulation material around the outer shell without welding components on the vessel to secure the insulation material.
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公开(公告)号：US12062459B2
公开(公告)日：2024-08-13
申请号：US16793089
申请日：2020-02-18
发明人： Eric P. Loewen , James P. Sineath , Dean D. Molinaro , William C. Dawn , Robin D. Sprague , Theron D. Marshall , Joel P. Melito
摘要： Nozzles mix coolant from different sources together in an outlet to prevent differences in coolant output. Different flow path configurations are useable in the nozzle, including a multiple-path configuration with flows from different sources jacketed or concentrically arranged around flows from other sources. Swirl vanes may be installed in the nozzle to impart mixing or filtering the fluid flow. Diffusers may be used to passively suction or accelerate flow and mixing the same like a jet pump. Nozzles can be combined with filtration systems like trap filters that capture debris based on a momentum difference between the denser debris and fluid. Filters can use magnetic, adhesive, or porous materials to capture debris without blocking a flow path. Filters can be disengaged, such as when clogged, such that coolant flows around the system. Nozzles can be installed on feedwater sparger assemblies in varying manner to distribute coolant from multiple nozzles.
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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：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：US11664131B2
公开(公告)日：2023-05-30
申请号：US16954716
申请日：2018-12-18
发明人： Richard Howard , Tingting Xu , Serge Bellet
摘要： A nuclear reactor includes a vessel having an outer wall and vessel bottom, and an enclosure delimited by a cylindrical inner wall disposed inside the vessel such that the inner wall and outer wall define a circuit with an annular cross-section. A support element is located adjacent the bottom of the enclosure to hold control elements of the core. A flow diffusion element is positioned between the support element and the vessel bottom and has a circular flat surface portion including disc shaped orifices of the same diameter. The space between the flat portion and the vessel bottom forms an unobstructed mixing zone to allow uniform distribution of flow rates of fluid circulated through the enclosure.
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公开(公告)号：US20180190398A1
公开(公告)日：2018-07-05
申请号：US15883612
申请日：2018-01-30
申请人： SMR Inventec, LLC
发明人： Krishna P. Singh , Joseph Rajkumar
摘要： A passively-cooled spent nuclear fuel pool system and method therefor. In one embodiment, the invention can be a passively-cooled spent nuclear fuel pool system comprising: a spent nuclear fuel pool comprising a body of liquid water having a surface level, at least one spent nuclear fuel rod submerged in the body of liquid water that heats the body of liquid water; a lid covering the spent nuclear fuel pool to create a hermetically sealed vapor space between the surface level of the body of liquid water and the lid; and a passive heat exchange sub-system fluidly coupled to the vapor space, the passive heat exchange sub-system configured to: (1) receive water vapor from the vapor space; (2) remove thermal energy from the received water vapor, thereby condensing the water vapor to form a condensed water vapor; and (3) return the condensed water vapor to the body of liquid water.
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公开(公告)号：US20180019027A1
公开(公告)日：2018-01-18
申请号：US15644908
申请日：2017-07-10
CPC分类号： G21C7/14 , F16B2001/0035 , G21C7/12 , G21C13/02 , G21C15/02 , G21C17/10 , H01F7/08 , H02K7/116 , H02K9/19 , H02K41/02 , H02K41/031 , Y02E30/39
摘要： Control rod drives include linearly-moveable control elements inside an isolation barrier. Control rod drives move the control element through secured magnetic elements subject to magnetic fields. Induction coils may generate magnetic fields and be moveable across a full stroke length of the control element in the reactor. A motor may spin a linear screw to move the induction coils on a vertical travel nut. A control rod assembly may house the magnetic elements and directly, removably join to the control element. The control rod assembly may lock with magnetic overtravel latches inside the isolation barrier to maintain an overtravel position. Overtravel release coils outside the isolation barrier may release the latches to leave the overtravel position. Operation includes moving the induction coils with a linear screw to drive the control element to desired insertion points, including full insertion by gravity following de-energization. No direct connection may penetrate the isolation barrier.
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公开(公告)号：US20180012669A1
公开(公告)日：2018-01-11
申请号：US15684062
申请日：2017-08-23
发明人： Per F. Peterson
摘要： A high-temperature containment-isolation system for transferring heat from a nuclear reactor containment to a high-pressure heat exchanger is presented. The system uses a high-temperature, low-volatility liquid coolant such as a molten salt or a liquid metal, where the coolant flow path provides liquid free surfaces a short distance from the containment penetrations for the reactor hot-leg and the cold-leg, where these liquid free surfaces have a cover gas maintained at a nearly constant pressure and thus prevent high-pressures from being transmitted into the reactor containment, and where the reactor vessel is suspended within a reactor cavity with a plurality of refractory insulator blocks disposed between an actively cooled inner cavity liner and the reactor vessel.
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公开(公告)号：US20170316842A1
公开(公告)日：2017-11-02
申请号：US15731310
申请日：2017-05-22
摘要： A super plant absolute technologies, comprising an ultra-transport system total energy of displacements embodied in electromagnetic fluids creep stiffness, cycle bulk power ultra-cycling light fluids by cosmological global gravitational dynamics conforming nullities, energy relativity structures, a relativity energy, a minimum energy balancing, a minimal energy displacement and: a reactor to and from steam generators (SGs) primary coolant loops piping, Regions 1; Regions 1, radial inline hot legs from the SG to turbines, condenser units, return to the SGs, cold legs, secondary coolant loops Regions 2; a containment, an annex building Regions 3; cooling water cycling gravitational field, the hydrosphere Regions 4; bulk power electrical distribution Regions 5; and opposing global air warming, effecting Heat Rate maximum efficiencies of the ultra-transport system and Regions 1-5 ultra-longevity boundaries an ultra-fluxing, an ultra-conserving the bulk power, the mega bulk power sustaining a boundaries perfection.
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公开(公告)号：US20170213608A1
公开(公告)日：2017-07-27
申请号：US15004128
申请日：2016-01-22
申请人： NuScale Power, LLC
发明人： Michael KELLER , Ross T. SNUGGERUD
CPC分类号： G21C19/18 , G21C1/08 , G21C1/32 , G21C13/02 , G21C17/10 , G21C19/02 , G21C19/07 , G21C19/20 , G21C19/32 , Y02E30/40
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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