ANTI-VIBRATION BARS FOR NUCLEAR STEAM GENERATORS

摘要

A method of installing tubular anti-vibration bars (15) into a tube bundle (11) of a steam generator (18) wherein the tube bundle (11) comprises rows of tubes (13), with the anti-vibration bars (15) received between adjacent rows of the tube bundle (11) for stabilizing the tubes (13) against vibration. The anti-vibration bars (15) are first inserted between adjacent rows of the tube bundle (11) and a pressurized fluid is then introduced into the anti-vibration bars (15) which are thus expanded into contact with the tubes of the adjacent rows for support.