Molten fuel reactors and orifice ring plates for molten fuel reactors

    公开(公告)号:US11881320B2

    公开(公告)日:2024-01-23

    申请号:US17130123

    申请日:2020-12-22

    申请人: TerraPower, LLC

    发明人: Kent E. Wardle

    IPC分类号: G21C1/22 G21C15/24 G21C15/02

    CPC分类号: G21C1/22 G21C15/24 G21C15/02

    摘要: A molten fuel reactor includes a reactor core having substantially a right-circular cylinder shape with a longitudinal axis. At least one inlet is configured to channel fuel salt into the reactor core. At least one outlet is configured to channel fuel salt out of the reactor core, and the inlet and outlet at least partially define a flow loop of fuel salt with respect to the reactor core. An orifice ring plate is disposed within the reactor core and proximate the at least one inlet. The orifice ring plate is configured to condition a flow of fuel salt entering the reactor core from the at least one inlet. The orifice ring plate extends circumferentially about the longitudinal axis and has a height defined in a direction along the longitudinal axis. The orifice ring plate includes a plurality of apertures configured to allow the flow of fuel salt therethrough.

    NUCLEAR REACTOR WITH SCREW-NUT DRIVE OF CORE REACTIVITY CONTROL MEMBERS

    公开(公告)号:US20180226161A1

    公开(公告)日:2018-08-09

    申请号:US15748182

    申请日:2016-07-28

    IPC分类号: G21C7/14 G21C1/32 G21C9/02

    摘要: A nuclear reactor includes a plurality of mechanisms (11) that drive the contact members (9) that control the reactivity, of the core. Each mechanism includes a driving member (21) including a driving part (23) forming one out of a screw or a nut, a member (27) for applying a rotary torque of the rotor (19) to the driving member (21), a driven member (29) translationally connected to one of the control members (9) and including the other out of screw and a nut; and a member (33) that is selectively mobile between a position of blocking the driving member (21) and a position of releasing the driving member (21). In each drive mechanism (11), the motor (15) is fully immersed in the primary coolant inside the vessel (3); the rotor (19) has a central passage (35), the member for applying the rotary torque (27) being situated in or near the central passage (35); the driving member (21) includes a connecting part (37) engaged in the central passage (35) and collaborating with the member for applying the rotary torque (27), the connecting part (37) being free to effect a translational movement inside the central passage (35) with respect to the rotor (19) when the or each blocking member (33) is in the releasing position.

    Fuel channel annulus spacer
    6.
    发明授权
    Fuel channel annulus spacer 有权
    燃油通道环空间

    公开(公告)号:US09595355B2

    公开(公告)日:2017-03-14

    申请号:US15137190

    申请日:2016-04-25

    摘要: An annulus spacer for a fuel channel assembly of a nuclear reactor, and method of manufacturing an annulus spacer. The fuel channel assembly includes a calandria tube and a pressure tube positioned at least partially within the calandria tube. The annulus spacer includes a garter spring configured to surround a portion of the pressure tube to maintain a gap between the calandria tube and the pressure tube. A girdle wire is positioned substantially within the garter spring and configured to form a loop around the pressure tube. The girdle wire includes a first segment and a second segment that overlaps the first segment to form an overlap, the overlap extending between approximately 45 degrees and approximately 135 degrees to reduce the possibility of girdle wire twisting.

    摘要翻译: 用于核反应堆的燃料通道组件的环形间隔件,以及制造环形隔离件的方法。 燃料通道组件包括至少部分地位于加热器管内的压汞管和压力管。 环形间隔件包括一个构造成围绕压力管的一部分以保持卡氏管与压力管之间的间隙的卡箍弹簧。 腰带线基本上位于拉紧弹簧内部并且构造成围绕压力管形成环。 带状线包括与第一段重叠以形成重叠的第一段和第二段,重叠在大约45度和大约135度之间延伸,以减少带状线扭转的可能性。

    FUEL CHANNEL ANNULUS SPACER
    7.
    发明申请
    FUEL CHANNEL ANNULUS SPACER 有权
    燃油通道ANNULUS SPACER

    公开(公告)号:US20160307653A1

    公开(公告)日:2016-10-20

    申请号:US15137190

    申请日:2016-04-25

    IPC分类号: G21C13/024 G21C1/20 G21C15/02

    摘要: An annulus spacer for a fuel channel assembly of a nuclear reactor, and method of manufacturing an annulus spacer. The fuel channel assembly includes a calandria tube and a pressure tube positioned at least partially within the calandria tube. The annulus spacer includes a garter spring configured to surround a portion of the pressure tube to maintain a gap between the calandria tube and the pressure tube. A girdle wire is positioned substantially within the garter spring and configured to form a loop around the pressure tube. The girdle wire includes a first segment and a second segment that overlaps the first segment to form an overlap, the overlap extending between approximately 45 degrees and approximately 135 degrees to reduce the possibility of girdle wire twisting.

    摘要翻译: 用于核反应堆的燃料通道组件的环形间隔件,以及制造环形隔离件的方法。 燃料通道组件包括至少部分地位于加热器管内的压汞管和压力管。 环形间隔件包括一个构造成围绕压力管的一部分以保持卡氏管与压力管之间的间隙的卡箍弹簧。 腰带线基本上位于拉紧弹簧内部并且构造成围绕压力管形成环。 带状线包括与第一段重叠以形成重叠的第一段和第二段,重叠在大约45度和大约135度之间延伸,以减少带状线扭转的可能性。

    Pressurized water reactor flow skirt apparatus
    8.
    发明授权
    Pressurized water reactor flow skirt apparatus 有权
    加压水反应器流动裙装置

    公开(公告)号:US09305668B2

    公开(公告)日:2016-04-05

    申请号:US12027341

    申请日:2008-02-07

    IPC分类号: G21C15/243

    摘要: A pressurized water reactor vessel having a flow skirt formed from a perforated cylinder structure supported in the lower reactor vessel head at the outlet of the downcomer annulus, that channels the coolant flow through flow holes in the wall of the cylinder structure. The flow skirt is supported at a plurality of circumferentially spaced locations on the lower reactor vessel head that are not equally spaced or vertically aligned with the core barrel attachment points, and the flow skirt employs a unique arrangement of hole patterns that assure a substantially balanced pressure and flow of the coolant over the entire underside of the lower core support plate.

    摘要翻译: 一种加压水反应器容器,其具有由穿孔的气缸结构形成的流动裙部,所述流动裙部支撑在降液管环的出口处的下部反应器容器头部中,其将冷却剂流通过气缸结构的壁中的流动孔。 流动裙部在下反应器容器头上的多个周向间隔开的位置处被支撑,所述位置不与芯筒附接点等间隔或垂直对准,并且流动裙部采用独特的孔图案布置,其确保基本平衡的压力 并且冷却剂在下芯支撑板的整个下侧上的流动。

    Two-fluid molten-salt reactor
    10.
    发明授权
    Two-fluid molten-salt reactor 有权
    双流体熔盐反应器

    公开(公告)号:US08594268B2

    公开(公告)日:2013-11-26

    申请号:US13290711

    申请日:2011-11-07

    申请人: Frank H. Shu

    发明人: Frank H. Shu

    IPC分类号: G21C15/00

    摘要: A reactor vessel includes a plenum and a reactor core with first and second sets of channels. A blanket salt flows through the first set of channels, and a fuel salt flows through the second set of channels. The plenum receives the blanket salt from the first set of channels. The blanket salt provides a breed-stock for a fission reaction in the fuel salt and transfers heat generated by the fission reaction without mixing with the fuel salt.

    摘要翻译: 反应堆容器包括具有第一和第二组通道的增压室和反应堆堆芯。 覆盖的盐流过第一组通道,燃料盐流过第二组通道。 通风室从第一组通道接收毯子盐。 覆盖盐提供了在燃料盐中的裂变反应的品种,并且传递由裂变反应产生的热而不与燃料盐混合。