FUEL ROD SUPPORT INSERT FOR A NUCLEAR FUEL ASSEMBLY SPACER GRID, SPACER GRID AND NUCLEAR FUEL ASSEMBLY
    4.
    发明授权
    FUEL ROD SUPPORT INSERT FOR A NUCLEAR FUEL ASSEMBLY SPACER GRID, SPACER GRID AND NUCLEAR FUEL ASSEMBLY 有权
    BRENNSTAB-STÜTZEINSATZFÜREIN ABSTANDHALTERGITTER EINER KERNBRENNSTOFFBAUGRUPPE UND KERNBRENNSTOFFBAUGRUPPE

    公开(公告)号:EP2929539B1

    公开(公告)日:2017-01-11

    申请号:EP13799016.4

    申请日:2013-11-28

    申请人: AREVA NP

    IPC分类号: G21C3/332 G21C5/06

    摘要: The support insert (22) is for a nuclear fuel assembly spacer grid comprising interlaced straps (18) defining a lattice of cells (20) for receiving fuel rods (4), the insert (22) being adapted to be secured to the straps (18) for extending in at least one cell (20). The insert (22) extends along an axis (B) intended to be parallel to that of a cell (20) and comprises two axially spaced end portions (26) for connecting the insert (22) to the straps (18) and at least one elongated blade-like spring (28) extending axially between the end portions (26) for supporting a fuel rod (4). The spring (28) has a non-rectilinear cross-section in each plane perpendicular to the insert axis (B).

    摘要翻译: 支撑插入件(22)用于核燃料组件间隔栅格,其包括限定用于接收燃料棒(4)的电池格(20)的隔行带(18),插入件(22)适于固定到带 18),用于在至少一个单元(20)中延伸。 插入件(22)沿着旨在平行于电池(20)的轴线(B)延伸并且包括用于将插入件(22)连接到带子(18)的两个轴向间隔开的端部部分(26),并且至少 在所述端部(26)之间轴向延伸以支撑燃料棒(4)的一个细长的叶片状弹簧(28)。 弹簧(28)在垂直于刀片轴线(B)的每个平面中具有非直线横截面。

    BWR nuclear fuel assembly with snap-in sleeve spring
    6.
    发明公开
    BWR nuclear fuel assembly with snap-in sleeve spring 审中-公开
    SWR-Brennelementeinheit mit einrastenderHülsenfeder

    公开(公告)号:EP2405443A1

    公开(公告)日:2012-01-11

    申请号:EP10305752.7

    申请日:2010-07-06

    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.

    摘要翻译: 本发明涉及一种用于沸水反应器的核燃料组件,其包括基座(2),头部和一束全长燃料棒和部分长度的燃料棒(11),所述束从基座向上和向上延伸 核燃料组件(1)包括至少一个用于相对于基座(2)纵向保持部分长度的燃料棒(11)的下部塞子(13)的夹具(33)。 夹具(33)是装配到基座(2)的附加部件,夹具(33)至少部分地容纳在设置在基座(2)中的壳体(30)中,夹具(33)组装成 基座(2)通过互补装配装置的机械接合。

    Tie plate assembly capable of accomodating different fuel bundle lattices
    9.
    发明公开
    Tie plate assembly capable of accomodating different fuel bundle lattices 失效
    Endstückmit Anpassung是一个不受欢迎的Brennstabbündelladegitter。

    公开(公告)号:EP0654793A1

    公开(公告)日:1995-05-24

    申请号:EP94307706.5

    申请日:1994-10-20

    IPC分类号: G21C3/12 G21C5/06

    摘要: A two part lower tie plate assembly is disclosed for use with a fuel bundle of a boiling water nuclear reactor. The two parts include a rod supporting grid section (G) and nozzle section (N). Both the rod supporting grid section (G) and the nozzle section (N) are constructed asymmetrically. The rod supporting grid section (G) contains one half of the total offset required for a D lattice lower tie plate and the nozzle section (N) contains one half of the total offset required for a D lattice lower tie plate. When a D lattice lower tie plate is required, assembly occurs so that the offsets are additive. When a C lattice lower tie plate is required, assembly occurs so that the offsets are subtractive. Assembly of the lower tie plate is provided be either bolting or welding. There results one single rod supporting grid and one nozzle section capable of assembly to fit either a C or a D lattice.

    摘要翻译: 公开了与沸水核反应堆的燃料束一起使用的两部分下部连接板组件。 这两个部分包括一个支撑格栅部分和喷嘴部分的杆。 杆支撑网格部分和喷嘴部分均不对称地构造。 杆支撑网格部分包含D格子下连接板所需的总偏移量的一半,喷嘴部分包含D格子下连接板所需的总偏移量的一半。 当需要D格子下连接板时,会发生组装,使偏移量相加。 当需要C格子下连接板时,会发生偏移减法的装配。 下连接板的组装提供螺栓连接或焊接。 导致单杆支撑网格和喷嘴部分组件能够组装以适应C或D格。

    Stift und Werkzeug zur Verankerung in einer Bohrung einer Platte oder Wand
    10.
    发明公开
    Stift und Werkzeug zur Verankerung in einer Bohrung einer Platte oder Wand 失效
    Stift und Werkzeug zur Verankerung在einer Bohrung einer Platte oder Wand。

    公开(公告)号:EP0396805A1

    公开(公告)日:1990-11-14

    申请号:EP89108518.5

    申请日:1989-05-11

    IPC分类号: G21C5/06 G21C3/32 F16B13/12

    摘要: Stift und Werkzeug zur Verankerung in einer Bohrung einer Platte oder Wand
    An dem zu verankernden Ende des Stiftes (1), der z.B. als Zentrierstift für Brennelemente dient, ist ein quer zu seiner Längsachse verlaufender Ausschnitt (2) mit trapezförmigem Quer­schnitt vorgesehen, In dem Ausschnitt ist ein Keil (5) ange­ordnet, welcher über einen Faltsteg (6) mit dem Stift (1) ver­bunden ist. Dem Keil (5) ist ein Dorn (9) zugeordnet, der in eine koaxiale Bohrung (8) des Stiftes (1) von dessen freiem Ende her einführbar ist. Mittels eines Werkzeuges wird über den Dorn (9) eine Kraft auf den Keil (5) im Sinne eines Aus­stellens und Verankerns von zwei durch den Ausschnitt (2) ge­bildeten Flanken (3, 4) übertragen.

    摘要翻译: 在作为例如用作燃料元件的定心销的销(1)的端部上,设置有横截面横切于其纵向轴线的梯形横截面的切口(2)。 排列在切口中的楔形物(5)通过折叠腹板(6)连接到销(1)。 楔(5)被分配有杆(9),其可从其自由端引入销(1)的同轴孔(8)中。 借助于工具,力通过杆(9)传递到楔(5),其作用是推出并锚固由切口(2)形成的两个侧面(3,4)。