Fuel assembly for a boiling water reactor
    2.
    发明授权
    Fuel assembly for a boiling water reactor 失效
    用于沸水反应堆的燃料组件

    公开(公告)号:US4632804A

    公开(公告)日:1986-12-30

    申请号:US632074

    申请日:1984-07-18

    IPC分类号: G21C3/32 G21C3/33

    摘要: A fuel assembly for a boiling water reactor comprises four bundles of vertical fuel rods (5). The bundles are surrounded by a common fuel channel (2) and each provided with a top tie plate (10) and a bottom tie plate (11). The four bottom tie plates are supported by a common supporting plate (18) which is inserted into, and supported by, the inlet sleeve (15) of the fuel assembly. Each bottom tie plate (11) includes an annular horizontal contact surface (24) abutting the supporting plate, and a non-round guide portion which is arranged, with no mentionable play, in a corresponding, non-round, through-hole (19) in the supporting plate (18).

    摘要翻译: 用于沸水反应器的燃料组件包括四束立式燃料棒(5)。 这些束被共同的燃料通道(2)包围,并且每个都设置有顶板(10)和底板(11)。 四个底部连接板由共同的支撑板(18)支撑,该支撑板被插入燃料组件的入口套筒(15)并由其支撑。 每个底板(11)包括邻接支撑板的环形水平接触表面(24)和不相关的非圆形通孔(19)中布置的无圆形引导部分 )在支撑板(18)中。

    Sealing device in a nuclear reactor
    3.
    发明授权
    Sealing device in a nuclear reactor 失效
    密封装置在核反应堆

    公开(公告)号:US5124112A

    公开(公告)日:1992-06-23

    申请号:US645500

    申请日:1991-01-24

    IPC分类号: F16L55/17

    CPC分类号: F16L55/17

    摘要: The invention relates to a sealing joint for pipes (3) or pipe sockets (2) in, for example, a nuclear reactor. The joint comprises at least two sealing bodies (4, 5) contacting each other in a contact surface (8) and provided with through holes (6, 7). The holes (6, 7) are delimited by envelope surfaces (9, 10) and form a tubular channel (11) through the sealing bodies (4, 5) and the contact surface (8). The sealing bodies (4, 5) are displaceable in relation to each other along the contact surface (8). Around the channel (11) a sealing member (12) is arranged between the sealing bodies (4, 5). Each one of the sealing bodies (4, 5) is divided into at least two discs (4a, 4b; 5a, 5b, respectively) in a plane intersecting the associated envelope surface (9, 10) along a closed curve. Between the discs belonging to a sealing body (4, 5), a slot (13 ) has been provided which is delimited by the associated envelope surface (9, 10). A flexible sealing ring (13a) is inserted into the slot (13). When the discs are compressed, the volume of the slot (130 is adapted to be reduced, causing the inserted sealing ring to be partially pressed out of the slot and towards, for example, a pipe (3) located in the channel (11).

    摘要翻译: 本发明涉及一种用于例如核反应堆的管道(3)或管道插座(2)的密封接头。 接头包括在接触表面(8)中彼此接触并设有通孔(6,7)的至少两个密封体(4,5)。 这些孔(6,7)由包络面(9,10)界定并通过密封体(4,5)和接触表面(8)形成管状通道(11)。 密封体(4,5)可沿接触表面(8)相对于彼此移动。 在通道(11)周围,密封件(12)设置在密封体(4,5)之间。 每个密封体(4,5)分别沿着封闭曲线在与相关联的包络面(9,10)相交的平面中分成至少两个盘(4a,4b; 5a,5b)。 在属于密封体(4,5)的盘之间,设置有由相关联的包络面(9,10)界定的槽(13)。 柔性密封环(13a)插入槽(13)中。 当盘被压缩时,槽(130)的体积适于减小,使得插入的密封环被部分地压出槽并朝向例如位于通道(11)中的管(3) 。

    Method for sealing a leak from a control rod drive stub tube in a
nuclear power reactor
    5.
    发明授权
    Method for sealing a leak from a control rod drive stub tube in a nuclear power reactor 失效
    密封核动力反应堆中控制杆驱动短管的泄漏的方法

    公开(公告)号:US5209894A

    公开(公告)日:1993-05-11

    申请号:US770486

    申请日:1991-10-03

    IPC分类号: G21C13/036

    CPC分类号: G21C13/036 Y02E30/40

    摘要: A method for sealing a leak between a control rod drive (CRD) stub tube (3) arranged in a reactor wall (2) and a tubular CRD housing (1) extending through the CRD stub tube (3) and the vessel wall (2). According to the invention, this sealing is obtained by deforming a suitably shaped element of memory metal below the transition temperature of the memory metal in such a way that it can be inserted, in the form of a sleeve (5) or a ring, into or around the CRD housing (1) where said housing passes through the vessel wall (2), or alternatively replace part of the CRD housing (1) at the passage through the vessel wall (2). Then when the memory metal is heated to above the transition temperature, it strives to resume its original shape which shall then have been such that the desired seal is obtained.

    摘要翻译: 一种用于密封布置在反应器壁(2)中的控制棒驱动(CRD)短管(3)和延伸穿过CRD短管(3)和管壁(2)的管状CRD壳体(1)之间的泄漏的方法 )。 根据本发明,这种密封是通过将存储金属的合适形状的元件变形成低于记忆金属的转变温度的方式获得的,使得其可以以套筒(5)或环的形式插入到 或围绕CRD壳体(1)周围,其中所述壳体通过血管壁(2),或者在通过血管壁(2)的通道处替换CRD壳体(1)的一部分。 然后,当记忆金属被加热到转变温度以上时,它将努力恢复其原始形状,从而获得所需的密封。

    Sealing sleeve of memory metal
    6.
    发明授权
    Sealing sleeve of memory metal 失效
    密封记忆金属

    公开(公告)号:US5120488A

    公开(公告)日:1992-06-09

    申请号:US647251

    申请日:1991-01-29

    IPC分类号: F16L55/17 G21C13/028

    摘要: The invention relates to a sealing sleeve for sealing a leak in, for example, a pipe, a pipe socket or the like in a nuclear reactor. The sleeve comprises a bellows-like mid-portion (1) with annular ends, at least these or part of these (2) being made of a memory metal with a suitable transition temperature. At a temperature above the transition temperature, that part of these annular ends which consists of memory metal has been given an inner diameter suitable for achieving sealing around the relevant pipe section on each side of the leak. The mentioned part of the ends has thereafter, at a temperature below the transition temperature, been deformed into a diameter which permits the sleeve to be freely fitted onto the pipe. In fitted position, the sleeve is then heated to above the transition temperature, the memory metal then striving to recover its previous shape and shrinks the sleeve so as to obtain sealing.

    摘要翻译: 本发明涉及用于在核反应堆中密封例如管,管插座等中的泄漏的密封套筒。 套筒包括具有环形端部的波纹管状中间部分(1),至少这些或部分(2)由具有适当转变温度的记忆金属制成。 在高于转变温度的温度下,由记忆金属组成的这些环形端部的那部分已经被赋予适于在泄漏的每一侧上围绕相关管段实现密封的内径。 此后,所提到的端部部分此后在低于转变温度的温度下变形为允许套筒自由地安装到管上的直径。 在装配位置,然后将套管加热到转变温度以上,记忆金属然后努力恢复其先前的形状并收缩套筒以获得密封。

    Fuel assembly
    7.
    发明授权
    Fuel assembly 失效
    燃油组件

    公开(公告)号:US4514358A

    公开(公告)日:1985-04-30

    申请号:US592741

    申请日:1984-03-23

    IPC分类号: G21C3/32 G21C15/00

    CPC分类号: G21C3/32 Y02E30/40

    摘要: A boiling water reactor fuel assembly is provided with an elongated, vertical stiffening device having four stiffening wings (4) which are each attached to a wall of the fuel box. Each stiffening wing has at least one vertically directed passageway for water. The stiffening device has a cruciform cross-section and is composed of four elongated members (6, 6', 6", 6'") of L-shaped cross-sections.

    摘要翻译: 沸水反应堆燃料组件设置有细长的垂直加强装置,其具有四个加强翼(4),每个加强翼各自附接到燃料箱的壁。 每个加强翼具有至少一个用于水的垂直定向通道。 加强装置具有十字形横截面,并由L形横截面的四个细长构件(6,6',6“,6”')组成。

    Nuclear fuel assembly
    8.
    发明授权
    Nuclear fuel assembly 失效
    核燃料组件

    公开(公告)号:US4587093A

    公开(公告)日:1986-05-06

    申请号:US508681

    申请日:1983-06-28

    摘要: A fuel asembly with a fuel channel (2) which surrounds a plurality of fuel rods (1) and which is divided, by means of a stiffening device (3) of cruciform cross-section and four wings (5), into four sub-channels (4) each of which comprises a bundle of fuel rods.Each fuel channel side has a plurality of stamped, inwardly-directed projections (6) arranged vertically one after the other, said projections being welded to one and the same stiffening wing. Each one of the wall portions located between the projections (6) defines, together with two adjacently positioned projections and a portion of the stiffening wing, a communication opening between two bundles located on one side each of the stiffening wing.

    摘要翻译: 一种燃料组件,其具有围绕多个燃料棒(1)的燃料通道(2),并且通过十字形横截面的加强装置(3)和四个翼(5)分成四个子组件, 每个通道(4)包括一束燃料棒。 每个燃料通道侧具有多个沿着一个接一个地垂直布置的冲压的向内指向的突起(6),所述突起焊接到同一个加强翼。 位于突起(6)之间的每个壁部分与两个相邻定位的突起和加强翼的一部分一起限定了位于加强翼的每一侧上的两个束之间的连通开口。

    Earthquake-proof fuel assembly
    9.
    发明授权
    Earthquake-proof fuel assembly 失效
    防震燃油组件

    公开(公告)号:US4578241A

    公开(公告)日:1986-03-25

    申请号:US641073

    申请日:1984-08-15

    IPC分类号: G21C3/33 G21C3/32

    CPC分类号: G21C3/3305 Y02E30/40

    摘要: A fuel assembly is disclosed which comprises a fuel channel (1) with square cross-section supported by an inlet sleeve (22) having at its lower part an inlet opening for a flow of coolant flowing through the fuel assembly. The inlet sleeve (22) is made of stainless steel and is mechanically connected to a transition sleeve (21) made of thick zirconium alloy sheet, which is welded to the more thin-walled fuel channel (1).

    摘要翻译: 公开了一种燃料组件,其包括具有由入口套筒(22)支撑的正方形横截面的燃料通道(1),其在其下部具有用于流过燃料组件的冷却剂流的入口。 入口套管22由不锈钢制成,机械地连接到由较厚的锆合金板制成的过渡套管21上,焊接到较薄壁的燃料通道(1)上。

    Flexible, annular metallic sealing device
    10.
    发明授权
    Flexible, annular metallic sealing device 失效
    柔性环形金属密封装置

    公开(公告)号:US4553764A

    公开(公告)日:1985-11-19

    申请号:US686801

    申请日:1984-12-27

    CPC分类号: B01J3/03 F16J15/004 F16J15/52

    摘要: A metallic, annular sealing device for closing an annular passage between a high-pressure chamber (2) and a circular cover (3) therefor. The sealing device comprises two coaxial, solid rings (17, 18) which are arranged with an intermediate circular gap. An upper (22) and a lower (21) hollow metal ring are each made with a circular gap. The edges of the gap of the upper hollow ring are welded to the solid rings (17, 18) at the upper portion of the gap defined between the solid rings, whereas the edges of the gap of the lower hollow ring are welded to the lower portion of the gap defined between the solid rings. Thus, the hollow rings (21, 22) communicate with each other.

    摘要翻译: 一种用于封闭高压室(2)和圆形盖(3)之间的环形通道的金属环形密封装置。 密封装置包括两个同轴的实心环(17,18),它们具有中间的圆形间隙。 上部(22)和下部(21)中空金属环各自制成圆形间隙。 上空心环的间隙的边缘在固体环之间限定的间隙的上部焊接到固体环(17,18),而下空心环的间隙的边缘被焊接到下部 在固体环之间限定的间隙部分。 因此,中空环(21,22)彼此连通。