DISTANSGALLER FOR UNDERSTODJANDE AV KERNBRENSLEELEMENT I FIXERADE INBORDES LEGEN I EN KERNREAKTOR OCH SETT FOR DESS FRAMSTELLNING

摘要

An improved mixing vane grid spacer having enhanced flow mixing capability by virtue of mixing vanes being positioned at welded intersecting joints of the spacer wherein each mixing vane has an opening or window formed therein substantially directly over the welded joint to provide improved flow mixing capability. Some of the vanes are slotted, depending on their particular location in the spacers. The intersecting joints are welded by initially providing consumable tabs at and within each window, which are consumed during the welding of the spacer joints.