Heat exchanger with anti-vibration bar between U-shaped curved tube bundle and tube bent portion

摘要

The extension element 18 is aligned with the small band 10 "c of the tube bundle, so that the vapor is proximate to the bends 10'c, 10" c, 10 "'c of the bundle of tubes 10 in the central free region of the bundle. Bind on the support plate 8a of the generator An anti-vibration bar 15 consisting of a basset positioned between any two adjacent rows 20 of the tube bundle is bound on the dovetail connection 16 by an inner end. The connection 16 comprises means for attaching on the corresponding means of the elongate element 18. Thus all anti-vibration bars supporting the space contained between the two successive rows 20 of the bundle of heat exchangers. 15 is assembled in a single operation The invention particularly applies to steam generators to pressurized water reactors.