LOCKING DEVICE FOR NUCLEAR FUEL SUB-ASSEMBLIES
    1.
    发明申请
    LOCKING DEVICE FOR NUCLEAR FUEL SUB-ASSEMBLIES 审中-公开
    核燃料组件的锁定装置

    公开(公告)号:WO2012097029A1

    公开(公告)日:2012-07-19

    申请号:PCT/US2012/020878

    申请日:2012-01-11

    Abstract: A locking mechanism (95, 125, 130) for a nuclear fuel assembly (2) having seed and blanket (6) subassemblies is configured to selectively lock the seed subassembly within the blanket subassembly, preventing separation thereof. The locking mechanism contains one or more detents (95) on one of the seed subassembly or the blanket subassembly, that are configured to engage with a surface feature on the other of the seed subassembly or the blanket subassembly. The locking mechanism contains a locking member movable between two positions. In a first position, the locking member (100) is configured to prevent the one or more detents from disengaging from the surface feature (125, 130), thereby holding the blanket subassembly and the seed subassembly together. In a second position, however, the detents are able to move into a non- locking position, such that the one or more detents may disengage from the surface feature as the seed subassembly is separated from the blanket subassembly.

    Abstract translation: 用于具有种子和毯子(6)子组件的核燃料组件(2)的锁定机构(95,125,130)被配置为选择性地将种子子组件锁定在橡皮布子组件内,从而防止其分离。 锁定机构包括在种子子组件或橡皮布子组件中的一个上的一个或多个棘爪(95),其构造成与种子子组件或毯子子组件中的另一个上的表面特征接合。 锁定机构包括可在两个位置之间移动的锁定构件。 在第一位置,锁定构件(100)构造成防止一个或多个棘爪脱离表面特征(125,130),从而将橡皮布子组件和种子子组件保持在一起。 然而,在第二位置,棘爪能够移动到非锁定位置,使得当种子子组件与橡皮布子组件分离时,一个或多个棘爪可以从表面特征脱离。

    FAST-NEUTRON REACTOR CORE WITH IMPROVED CONFIGURATION
    2.
    发明申请
    FAST-NEUTRON REACTOR CORE WITH IMPROVED CONFIGURATION 审中-公开
    具有改进配置的快中子反应堆芯

    公开(公告)号:WO2011154669A3

    公开(公告)日:2012-03-22

    申请号:PCT/FR2011051336

    申请日:2011-06-10

    CPC classification number: G21C1/024 G21C5/18 G21C5/20 Y02E30/34

    Abstract: The present invention relates to a configuration of a liquid-metal-cooled fast-neutron reactor core. The core comprises an assembly of fuel elements comprising a fertile material and/or a fissile material, the assembly of such fuel elements being arranged in the general form of a cylinder. In the context of the invention, a first assembly of fuel elements (C1, C2, C3), arranged in a ring around the periphery of the cylinder, comprises relatively more fissile material than a second assembly of fuel elements (FERT), which is placed at the centre of the cylinder. Such an arrangement advantageously enables a liquid metal draining effect to be reduced and thereby improves the safety of the reactor.

    Abstract translation: 本发明涉及液态金属冷却的快中子反应堆核心的结构。 核心包括燃料元件的组合件,其包括肥沃材料和/或可裂变材料,这种燃料元件的组件以气缸的一般形式布置。 在本发明的上下文中,燃料元件(C1,C2,C3)围绕圆柱体的周边布置成环的第一组件包括比燃料元件(FERT)的第二组件相对更易裂变的材料,其是 放置在圆筒的中心。 这样的配置有利于使液体金属排放效果降低,从而提高反应器的安全性。

    NUCLEAR REACTOR OF THE SEED AND BLANKET TYPE
    4.
    发明申请
    NUCLEAR REACTOR OF THE SEED AND BLANKET TYPE 审中-公开
    种子和棉花类型的核反应堆

    公开(公告)号:WO1985001826A1

    公开(公告)日:1985-04-25

    申请号:PCT/US1984001670

    申请日:1984-10-16

    CPC classification number: G21C5/20 Y02E30/40

    Abstract: A nuclear reactor of the seed-blanket type having an active core (2) comprising seed regions (14) of fissile material and blanket regions (12 and 16) of fertile material capable of being converted into fissile material by neutron capture, the seed (14) and blanket regions (12, 16) being such as to produce a net reverse flow of neutron current as compared to conventional seed-blanket reactors, i.e. in the present reactor, the net fast neutron flow is from the blanket regions (12, 16) to the seed region (14) and the net thermal and epithermal neutron flow is from the seed region (14) to the blanket regions (12, 16). Such a reactor lends itself to the use of nonproliferative fuel, provides normal overall power densities, and requires low initial amounts of mined uranium.

    Abstract translation: 种子毯型的核反应堆具有活性核心(2),该活性核心(2)包括可裂变材料的种子区域(14)和能够通过中子捕获将其转化为易裂变材料的可育材料的覆盖区域(12和16),种子 14)和覆盖区域(12,16)与传统的种子层反应器相比产生中子电流的净逆流,即在本反应器中,净快中子流来自覆盖区域(12, 16)到种子区域(14),并且净热和超热中子流从种子区域(14)到覆盖区域(12,16)。 这种反应器适用于非增容燃料的使用,提供正常的总功率密度,并且需要低的初始量的开采铀。

    燃料集合体及びそれを装荷する沸騰水型原子炉の炉心
    6.
    发明申请
    燃料集合体及びそれを装荷する沸騰水型原子炉の炉心 审中-公开
    燃料组件和沸水核反应堆的核心装载相同

    公开(公告)号:WO2018074341A1

    公开(公告)日:2018-04-26

    申请号:PCT/JP2017/037125

    申请日:2017-10-13

    CPC classification number: G21C3/28 G21C3/30 G21C3/328 G21C5/20 Y02E30/31 Y02E30/38

    Abstract: 運転中に中性子スペクトルを硬化させた沸騰水型原子炉におけるボイド反応度係数を改善し、原子炉の安全性を向上し得る燃料集合体及びそれを装荷する沸騰水型原子炉の炉心を提供する。 沸騰水型原子の炉心22に正方格子状に装荷される燃料集合体1は、炉心22が定格出力で運転されている状態で軸方向に高出力の燃料領域12及び低出力のブランケット領域(13,14)を備え、炉心22が定格出力で運転されている状態で、チャンネルボックス2内のウラン核種と超ウラン核種の合計の個数密度に対する水素の個数密度の比が0.6以上2.1以下であり、且つ、燃焼度ゼロの燃料集合体1の低出力のブランケット領域(13,14)は、燃料のウラン核種及び超ウラン核種に占めるプルトニウム239が0.1wt%以上1.0wt%以下となるよう超ウラン核種を劣化ウラン酸化物に富化されている。

    Abstract translation: 沸水

    在沸水反应堆固化操作期间,中子谱改善空隙反应性系数,装载燃料组件可以提高核反应堆和它的安全性 型核反应堆堆芯。 的燃料组件被装载在一个正方晶格在沸水的芯22核1,高输出燃料区域12和在轴向方向上的在芯22被在额定输出操作的状态的输出低电平的再生区(13 包括14)中,与芯部22以额定功率操作时,氢的个数密度以铀核素和超铀核素在通道箱2的个数密度的总和的比率为0.6以上2.1 或更小,并且燃料组件1的低输出的为0的燃耗(13,14)一个再生区是钚239占据铀核素和燃料的超铀核素低于0.1重量%1.0重量%或更少 铀核素富集贫化的铀氧化物成为。

    SLIMM-SCALABLE LIQUID METAL COOLED SMALL MODULAR REACTOR
    8.
    发明申请
    SLIMM-SCALABLE LIQUID METAL COOLED SMALL MODULAR REACTOR 审中-公开
    SLIMM-SCALABLE液体金属冷却小型模块化反应器

    公开(公告)号:WO2015085241A1

    公开(公告)日:2015-06-11

    申请号:PCT/US2014/068910

    申请日:2014-12-05

    Applicant: STC.UNM

    Abstract: The present invention provides a modular nuclear reactor system comprising a reactor pressure vessel having a lower section having a first wall and a second wall and an upper section having a first wall and a second wall. The reactor includes a chimney with an attached heat exchanger. First and second passageways create a circulation loop wherein heated heat transfer fluid circulates up from the reactor core, through the chimney, through an upper plenum and downwardly past the heat exchanger, into a lower plenum and back into the core.

    Abstract translation: 本发明提供了一种模块式核反应堆系统,其包括反应堆压力容器,其具有具有第一壁和第二壁的下部,以及具有第一壁和第二壁的上部。 反应器包括具有附接的热交换器的烟囱。 第一和第二通道产生循环回路,其中加热的传热流体从反应堆堆芯向上循环通过烟囱,通过上部通风室,并向下通过热交换器,进入下部增压室并回到芯部。

    ANNULAR CORE LIQUID-SALT COOLED REACTOR WITH MULTIPLE FUEL AND BLANKET ZONES
    9.
    发明申请
    ANNULAR CORE LIQUID-SALT COOLED REACTOR WITH MULTIPLE FUEL AND BLANKET ZONES 审中-公开
    带多个燃料和空白区域的环形核心液体盐冷却反应器

    公开(公告)号:WO2011040989A1

    公开(公告)日:2011-04-07

    申请号:PCT/US2010/030622

    申请日:2010-04-09

    CPC classification number: G21C1/07 G21C5/20 G21C11/06 G21C15/28 Y02E30/36

    Abstract: A liquid fluoride salt cooled, high temperature reactor having a reactor vessel with a pebble-bed reactor core. The reactor core comprises a pebble injection inlet located at a bottom end of the reactor core and a pebble defueling outlet located at a top end of the reactor core, an inner reflector, outer reflector, and an annular pebble- bed region disposed in between the inner reflector and outer reflector. The annular pebble-bed region comprises an annular channel configured for receiving pebble fuel at the pebble injection inlet, the pebble fuel comprising a combination of seed and blanket pebbles having a density lower than the coolant such that the pebbles have positive buoyancy and migrate upward in said annular pebble-bed region toward the defueling outlet. The annular pebble-bed region comprises alternating radial layers of seed pebbles and blanket pebbles.

    Abstract translation: 一种液态氟化盐盐冷却的高温反应器,其具有带有卵石床反应堆芯的反应器容器。 反应堆堆芯包括位于反应堆芯的底端处的卵石注入入口和位于反应堆芯的顶端的卵石排出口,内反射器,外反射器和设置在反应堆芯之间的环形卵石床区域 内部反射器和外部反射器。 环形卵石床区域包括环形通道,其构造成用于在卵石注入入口处接收卵石燃料,卵石燃料包括密度低于冷却剂的种子和覆盖卵石的组合,使得卵石具有正的浮力并向上迁移 所述环形卵石床区域朝向排出口。 环形卵石床区域包括种子卵石和覆盖鹅卵石的交替的径向层。

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