公开(公告)号：EP1611584A2

公开(公告)日：2006-01-04

申请号：EP04741134.3

申请日：2004-07-19

申请人： Framatome ANP GmbH

发明人： STABEL, Jürgen ,  MARX, Veit

IPC分类号： G21C3/34

CPC分类号： G21C3/34 ,  G21C3/332 ,  G21Y2002/104 ,  G21Y2002/305 ,  Y02E30/40

摘要： The invention relates to a fuel element for a compressed water nuclear reactor. Said fuel element contains a plurality of fuel rods that are guided into a plurality of axially interspaced spacers (4) respectively forming a quadratic grid consisting of connecting elements (141-17, 161-17) and comprising a plurality of holes (6) that are arranged in rows (10) and columns (8). A control rod guiding tube (12) is respectively guided through a number of said holes (6), and the spacer (4) is structurally embodied in such a way that when a limiting force acting laterally on the spacer (4) is exceeded, a deformation is triggered exclusively in a region of the spacer (4) located outside an inner region (18) containing the control rod guiding tubes (12).

公开(公告)号：EP1576617A2

公开(公告)日：2005-09-21

申请号：EP04763131.2

申请日：2004-07-08

申请人： Framatome ANP GmbH

发明人： STABEL, Jürgen ,  BORSDORF, Udo ,  KUNZ, Heinz-Jürgen

IPC分类号： G21C3/12

CPC分类号： G21C3/12 ,  G21C5/06 ,  Y02E30/40

摘要： The invention relates to a fuel element (2) for a pressurised water reactor, containing an end part (4) and a spring arrangement (8a, b) which can be impinged upon by pressure by reducing the projection (L) and which protrudes over the end part (4) with a projection (L). Said spring arrangement comprises at least one first spring element (10a, b) and one second spring element (12a, b) which is permanently serially connected. One of the spring elements (10a, b) is prestressed in such a manner that the spring rate (ca, cb) of the spring arrangement (8a, b) is exclusively determined by the other spring element (12a, b) below a predetermined defining force (FGa, FGb).

公开(公告)号：EP1625594A2

公开(公告)日：2006-02-15

申请号：EP04801208.2

申请日：2004-12-04

申请人： Framatome ANP GmbH

发明人： STABEL, Jürgen ,  FUCHS, Hans-Peter ,  REN, Mingmin

IPC分类号： G21C3/322

CPC分类号： G21C3/34 ,  G21C3/322 ,  G21Y2002/201 ,  G21Y2002/207 ,  G21Y2004/302 ,  Y02E30/38

摘要： The invention relates to a fuel element (4) for a pressurised water nuclear reactor. A plurality of fuel rods (10) extending in an axial direction are guided into a plurality of quadratic spacers (12) which are arranged at a distance from each other and are grid-shaped. The edge thereof is formed, respectively, by four edge web pieces (14a, b). At least one spacer (12) has at least two edge web pieces (14a, b) which are different from each other and which are used to produce a force (F) acting upon flowing cooling water (K) on the fuel element (4) on the plane of said spacer (12) in a transversal manner in relation to the axial direction. As a result, a systematic, predetermined deformation of a core (5), comprising said fuel elements, is produced and is taken into account in the configuration thereof .

公开(公告)号：EP1620861A1

公开(公告)日：2006-02-01

申请号：EP05701346.8

申请日：2005-02-04

申请人： Framatome ANP GmbH

发明人： STABEL, Jürgen ,  REINDERS, Rudi ,  REN, Mingmin

IPC分类号： G21C3/322 ,  G21C3/352

CPC分类号： G21C3/322 ,  G21C3/18 ,  G21C3/352 ,  G21Y2002/101 ,  G21Y2002/103 ,  G21Y2002/304 ,  G21Y2004/302 ,  Y02E30/32 ,  Y02E30/38

摘要： Disclosed is a fuel element for a pressurized water reactor, comprising a plurality of fuel rods (2) that are guided inside a plurality of axially spaced-apart spacers (4d) which are composed of grid webs (20). Each of said grid webs (20) forms a grid with a multitude of grid cells (6) which are disposed in rows and columns. The grid webs (20) are provided with flow-conducting means (26) for generating a cooling water current encompassing a transversal flow component that is oriented parallel to the spacer plane. According to the invention, at least one spacer (4) is composed of a multitude of subareas (50a-d), each of which is greater than one grid cell (6), while the flow-conducting means (26) are designed and distributed within the spacer (4) in such a way that in the wake above each subarea (50a-d), a transversal flow distribution is created which causes cooling water to be exchanged at least almost exclusively between secondary flow ducts (6) located within the subarea.

摘要翻译： 公开了一种用于压水反应堆的燃料元件，其包括多个燃料棒（2），所述燃料棒在由格栅网（20）组成的多个轴向间隔开的间隔物（4d）内被引导。 每个所述网格网（20）形成具有多个以行和列排列的网格单元（6）的网格。 格栅网（20）设置有导流装置（26），用于产生包围平行于间隔平面定向的横向流动分量的冷却水流。 根据本发明，至少一个隔离件（4）由多个子区域（50a-d）组成，每个子区域大于一个网格单元（6），而导流装置（26）被设计并且 以这样的方式分布在间隔件（4）内：在每个分区（50a-d）的上方，产生横向流动分布，其导致冷却水至少几乎完全在位于内部的二级流动管道 分区。

公开(公告)号：EP1327250B1

公开(公告)日：2004-02-11

申请号：EP02738040.1

申请日：2002-05-08

申请人： Framatome ANP GmbH

发明人： STABEL, Jürgen ,  REN, Mingmin

IPC分类号： G21C5/00

CPC分类号： G21C3/32 ,  G21C5/00 ,  G21C19/205 ,  G21Y2002/104 ,  G21Y2002/207 ,  G21Y2004/403 ,  Y02E30/40

公开(公告)号：EP1543530A2

公开(公告)日：2005-06-22

申请号：EP03740275.7

申请日：2003-06-18

申请人： Framatome ANP GmbH

发明人： STABEL, Jürgen ,  BORSDORF, Udo ,  HÜBSCH, Hans-Peter

IPC分类号： G21C3/32

CPC分类号： G21C3/32 ,  G21C3/328 ,  G21Y2002/104 ,  G21Y2002/303 ,  G21Y2004/30 ,  Y02E30/32 ,  Y02E30/38

摘要： A fuel element for a pressurized water reactor contains a multitude of fuel rods, which are guided inside a number of axially interspaced spacers (4) that, together, form a square grid having a multitude of holes (6) arranged in rows (10) and columns (8). A supporting tube is passed through a number of these holes and is joined with material fit inside said holes to the spacer (4) that does not contain any fuel. According to the invention, the supporting tubes are spread out in positions (Pa, Pb, Pc) within the grid in such a manner that, with a predetermined number of supporting tubes and a distribution thereof within the grid, which is rotationally symmetric around 90° with regard to a rotation about the central axis of the spacer (4), said central axis being perpendicular to the grid plane, the number of rows (10f) and columns (8f) that do not contain any supporting tubes is minimal. In addition, it is ensured that optionally remaining inner lying rows (10f) and columns (8f) that do not contain any supporting tubes are not situated next to one another.

公开(公告)号：EP1327250A2

公开(公告)日：2003-07-16

申请号：EP02738040.1

申请日：2002-05-08

申请人： Framatome ANP GmbH

发明人： STABEL, Jürgen ,  REN, Mingmin

IPC分类号： G21C5/00

CPC分类号： G21C3/32 ,  G21C5/00 ,  G21C19/205 ,  G21Y2002/104 ,  G21Y2002/207 ,  G21Y2004/403 ,  Y02E30/40

摘要： The core of a pressurized water reactor is assembled in such a way that if the fuel rods on the edge of the core bend, said bending is respectively oriented outwards in a convex manner. When the reactor is in operation, forces arise which increase the size of small gaps between said fuel rods at the expense of greater gaps and counteract the bending effect of said fuel rods.