公开(公告)号：EP1989715B1

公开(公告)日：2011-06-22

申请号：EP07722892.2

申请日：2007-02-22

申请人： AREVA NP GmbH

发明人： GALSTER, Georg ,  WILDENAUER, Joachim ,  FRIEDRICH, Erhard ,  RUDOLPH, Matthias

IPC分类号： G21C3/33 ,  G21C3/334 ,  G21C3/34

CPC分类号： G21C3/334 ,  G21C3/352 ,  G21Y2002/304 ,  G21Y2002/40 ,  G21Y2004/30 ,  Y02E30/40

摘要： In a combustion element for a light-water reactor, having a large number of fuel rods which are guided in a plurality of axially spaced-apart spacers (4), which each form a grid comprising grid webs (14, 16) with a large number of cells (6), which are arranged in rows (10) and columns (8), a peripheral web (16) of a spacer (4) has a cutout (40) introduced after damage in the region of one cell (6). A repair sleeve (20) with an outer face protruding into the cutout (40) is inserted into the cell (6) and runs flush with the undamaged outer face of the spacer (4). A combustion element damaged in the region of the spacer can thus be repaired and reused.

公开(公告)号：EP1550137B1

公开(公告)日：2009-03-18

申请号：EP03807797.0

申请日：2003-08-20

申请人： AREVA NP GmbH

发明人： BUCHEIT, Peter ,  RUDOLPH, Matthias ,  FUCHS, Hans-Peter

IPC分类号： G21C3/332

CPC分类号： G21C3/332 ,  G21Y2002/302 ,  G21Y2004/30 ,  Y02E30/40

公开(公告)号：EP1989715A1

公开(公告)日：2008-11-12

申请号：EP07722892.2

申请日：2007-02-22

申请人： AREVA NP GmbH

发明人： GALSTER, Georg ,  WILDENAUER, Joachim ,  FRIEDRICH, Erhard ,  RUDOLPH, Matthias

IPC分类号： G21C3/33 ,  G21C3/334 ,  G21C3/34

CPC分类号： G21C3/334 ,  G21C3/352 ,  G21Y2002/304 ,  G21Y2002/40 ,  G21Y2004/30 ,  Y02E30/40

摘要： In a combustion element for a light-water reactor, having a large number of fuel rods which are guided in a plurality of axially spaced-apart spacers (4), which each form a grid comprising grid webs (14, 16) with a large number of cells (6), which are arranged in rows (10) and columns (8), a peripheral web (16) of a spacer (4) has a cutout (40) introduced after damage in the region of one cell (6). A repair sleeve (20) with an outer face protruding into the cutout (40) is inserted into the cell (6) and runs flush with the undamaged outer face of the spacer (4). A combustion element damaged in the region of the spacer can thus be repaired and reused.

公开(公告)号：EP1878023A2

公开(公告)日：2008-01-16

申请号：EP06742648.6

申请日：2006-04-22

申请人： AREVA NP GmbH

发明人： RUDOLPH, Matthias ,  FUCHS, Hans-Peter ,  FRIEDRICH, Erhard

IPC分类号： G21C3/33

CPC分类号： G21C3/332 ,  G21Y2002/303 ,  G21Y2004/30 ,  Y02E30/40

摘要： The invention relates to a fuel element for a nuclear reactor, comprising a fuel rod bundle, at least one spacer with cells defined by at least one web section made from a first material and several guide tubes each running through a cell and axially fixed thereto made from a second material, whereby the first and second materials have differing thermal expansion coefficients. The connection between guide tube and spacer is embodied as follows: first and second projections are directly or indirectly fixed to the guide tube, whereby the first projections are arranged in a first axial position and the second projections are arranged at a second axial position and the projections each engage in an opening through the web section to give an axially-acting undercut.