Dispositif de jonction démontable pour assemblage combustible pour réacteur nucléaire
    32.
    发明公开
    Dispositif de jonction démontable pour assemblage combustible pour réacteur nucléaire 失效
    Demontierbare VerbindungsvorrichtungfürBrennelementbündeleines Kernreaktors。

    公开(公告)号:EP0073728A1

    公开(公告)日:1983-03-09

    申请号:EP82420122.2

    申请日:1982-08-25

    申请人: URANIUM PECHINEY

    发明人: Blum, Jacques

    IPC分类号: G21C5/06 G21C3/32 F16L37/00

    摘要: Le dispositif suivant l'invention concerne les assemblages combustibles pour réacteurs nucléaires tels que ceux refroidis par eau bouillante ou pressurisée. De façon plus précise, ce dispositif concerne les jonctions entre les plaques d'extrémité et des tubes ou tiges de liaison.
    Le dispositif de jonction comporte au moins une ailette radiale, disposée autour de l'extrémité d'un tube ou tige de liaison. L'extrémité de ce tube ou tige traverse un trou percé dans la plaque d'extrémité et un déplacement angulaire permet d'engager l'ailette dans un logement ménagé dans la paroi de la plaque.
    Ce dispositif de jonction s'applique à la réalisation d'assemblages combustibles à démontage et remontage faciles au moyen d'outils commandés à distance.

    摘要翻译: 1.一种用于在核燃料组件的连杆或管(1,28,29,43,54)和端板(3,349,66)之间进行可拆卸连接的装置,其中连杆的端部 或管通过在端板(3,49,66)中示出的孔(2,4,46),其包括至少一个径向翅片(7,8,9,26,27,41,42,60),所述径向翅片(7,8,9,26,27,41,42,60)设置在 围绕管或杆,其可以通过设置在孔的壁中的至少一个凹部(17,44,71)围绕孔的轴线进行角位移而接合,其特征在于,施加到连接处的力 与孔的轴线平行关系的两个方向中的每一个方向由翅片轴承的至少一个侧面(10,50)抵靠在边缘部分(18,48A)的固定支承面上而被固定, 相对端板或端板(66)本身。

    VERBINDUNGSANORDNUNG EINES ZENTRIERSTIFTS AN EINEM KERNGITTER SOWIE VERFAHREN ZUR VERBINDUNG EINES ZENTRIERSTIFTES MIT EINEM KERNGITTER
    34.
    发明公开

    公开(公告)号:EP3062943A1

    公开(公告)日:2016-09-07

    申请号:EP14784077.1

    申请日:2014-10-14

    申请人: AREVA GmbH

    摘要: The invention relates to a connecting assembly of a centering pin (10) on a core grate (3) of the reactor pressure vessel (1) of a pressurized-water reactor, which centering pin is used to center a fuel element (2), wherein the centering pin (10) is retained in an accommodating bore (16) of a plate (4) present on the core grate (3), with an expanded projection (19) protruding from the accommodating bore (16), in such a way that a form closure is formed. In a pre-assembly state, in which said form closure does not yet exist, the fixing segment (18) is a hollow cylinder, which has, over the entire length of the hollow cylinder, an outer circumferential surface (27) that extends on the lateral surface of a circular cylinder having uniform outside diameter (26). In a final assembly state, the projection (19) is expanded as a consequence of an expansion by means of an expanding tool in such a way that said form closure is formed.

    摘要翻译: 本发明涉及一种在加压水反应堆的反应堆压力容器(1)的芯格(3)上的定心销(10)的连接组件,该定心销用于使燃料元件(2)居中, 其中定心销(10)保持在存在于芯格栅(3)上的板(4)的容纳孔(16)中,具有从容纳孔(16)突出的扩展突起(19) 形式关闭的方式。 在预组装状态下,其中所述形状封闭件不存在,固定部分(18)是中空圆柱体,其在中空圆柱体的整个长度上具有延伸在其上的外周表面(27) 具有均匀外径(26)的圆柱体的侧表面。 在最终组装状态下,突起(19)由于通过膨胀工具的膨胀而膨胀,使得形成所述形状封闭件。

    BWR NUCLEAR FUEL ASSEMBLY WITH SNAP-IN SLEEVE SPRING
    35.
    发明公开
    BWR NUCLEAR FUEL ASSEMBLY WITH SNAP-IN SLEEVE SPRING 有权
    通过释放套筒弹簧BWR燃料组件

    公开(公告)号:EP2591474A2

    公开(公告)日:2013-05-15

    申请号:EP11729326.6

    申请日:2011-07-06

    申请人: Areva NP

    IPC分类号: G21C3/33 G21C5/06

    摘要: The invention relates to a nuclear fuel assembly for a boiling water reactor comprising a base (2), a head, and a bundle of full length fuel rods and partial length fuel rods (11), said bundle extending upwardly and longitudinally from the base (2) to the head, the nuclear fuel assembly (1) comprising at least one clamp (33) for longitudinally retaining a lower plug (13) of a partial length fuel rod (11) with respect to the base (2). The clamp (33) is an additional part fitted to the base (2), the clamp (33) is at least partially received in a housing (30) provided in the base (2), and the clamp (33) is assembled to the base (2) by mechanical engagement of complementary assembly means.

    BRENNELEMENT FÜR EINEN SIEDEWASSERREAKTOR
    37.
    发明授权
    BRENNELEMENT FÜR EINEN SIEDEWASSERREAKTOR 有权
    BRENNELEMENTFÜREINEN SIEDEWASSERREAKTOR

    公开(公告)号:EP1730748B1

    公开(公告)日:2007-09-12

    申请号:EP05715677.0

    申请日:2005-03-03

    申请人: AREVA NP GmbH

    IPC分类号: G21C3/322 G21C5/06

    摘要: The invention relates to a fuel element, for a boiling-water reactor, comprising a water channel (4) and a fuel element base (6), made from a sieve plate (8) and a frame section (7) enclosing the same, whereby the water channel (4) supports a plug (17) with a drilling (16) running therethrough, at the lower end thereof, to which the fuel element base (6) is fixed. The embodiment of the fuel element further comprises an opening (14) through the sieve plate (8), a skirt (19), formed on the underside (18) of the plug (17), surrounding the drilling (16), extending into the opening (14) in the sieve plate (8), a bush (22), provided with a first and a second longitudinal section (23, 24), whereby the first longitudinal section (23) extends from the underside (27) of the sieve plate (8) into the opening (14) in a rotationally-fixed manner and a radial shoulder (25) is provided between both sections (23, 24) which contacts the underside (27) of the sieve plate (8). A threaded section (35) of a screw (34) extends through the bush (22) which engages in a thread in the drilling (16) in the plug (17).

    摘要翻译: 用于沸水反应堆的燃料元件技术领域本发明涉及一种用于沸水反应堆的燃料元件,其包括由筛板(8)和包围其的框架部分(7)制成的水通道(4)和燃料元件基座(6) 由此水通道(4)在其下端固定有燃料元件基座(6)的带有穿过其中的钻孔(16)的插塞(17)。 燃料元件的实施例还包括穿过筛板(8)的开口(14),形成在插塞(17)的下侧(18)上的围绕钻孔(16)延伸的裙部(19) (8)中的开口(14),设有第一和第二纵向部分(23,24)的衬套(22),其中第一纵向部分(23)从第一和第二纵向部分(23,24)的下侧 在与筛板(8)的下侧(27)接触的两个部分(23,24)之间设置旋转固定地将筛板(8)插入开口(14)中并且径向台肩(25)。 螺钉(34)的螺纹部分(35)延伸穿过衬套(22),该衬套啮合插塞(17)中的钻孔(16)中的螺纹。

    Core support for an F-lattice core of a boiling water nuclear reactor
    39.
    发明公开
    Core support for an F-lattice core of a boiling water nuclear reactor 有权
    克里斯蒂安·克里恩

    公开(公告)号:EP1202289A1

    公开(公告)日:2002-05-02

    申请号:EP01308890.1

    申请日:2001-10-19

    IPC分类号: G21C5/06 G21C15/02

    摘要: A core plate assembly (50) for a nuclear reactor includes a plurality of support beams (60), a flat plate (58) positioned on top of the support beams, a plurality of control rod guide tube openings arranged in staggered rows, and a plurality of fuel supports (98) extending through the flat plate. Each guide tube opening has a cruciform shape which defines four fuel bundle receiving areas. Each fuel support includes a coolant flow inlet (100), and a coolant flow outlet (102) sized to receive a lower tie plate (94) of a fuel bundle (36). The coolant flow inlet is offset from coolant flow outlet so that a centerline (106) of the coolant flow inlet is parallel to a centerline (108) of the coolant flow outlet. The coolant flow inlets are positioned adjacent a support beam, and the coolant flow outlets are positioned in a fuel bundle receiving area.

    摘要翻译: 用于核反应堆的芯板组件(50)包括多个支撑梁(60),位于支撑梁顶部的平板(58),以交错列布置的多个控制杆引导管开口,以及 多个燃料支撑件(98)延伸穿过平板。 每个导管开口具有限定四个燃料束容纳区域的十字形状。 每个燃料支撑件包括冷却剂流入口(100)和尺寸设计成容纳燃料束(36)的下连接板(94)的冷却剂流出口(102)。 冷却剂流入口从冷却剂流出口偏移,使得冷却剂流入口的中心线(106)平行于冷却剂流出口的中心线(108)。 冷却剂流入口位于支撑梁附近,并且冷却剂流出口位于燃料束接收区域中。

    Nuclear reactor having large cruciform control rods
    40.
    发明公开
    Nuclear reactor having large cruciform control rods 有权
    Kernreaktor mit grossenkreuzförmigenSteuerstäben

    公开(公告)号:EP1120794A1

    公开(公告)日:2001-08-01

    申请号:EP00300539.4

    申请日:2000-01-25

    IPC分类号: G21C7/113 G21C5/06

    摘要: Fuel bundle and control rod assemblies for a nuclear reactor are described. In one embodiment of the apparatus, the nuclear reactor includes several conventional size fuel bundles (162) and at least one large control rod (160). The large control rod (160) includes four fuel bundle receiving channels, and each such channel is sized to receive four conventional size fuel bundles(162).

    摘要翻译: 描述了用于核反应堆的燃料束和控制棒组件。 在该装置的一个实施例中,核反应堆包括几个常规尺寸的燃料束(162)和至少一个大的控制杆(160)。 大的控制棒(160)包括四个燃料束接收通道,并且每个这样的通道的尺寸设置成接收四个常规尺寸的燃料束(162)。