NOZZLE SEALING HOLDING MECHANISM OF STEAM GENERATOR

摘要

In a nuclear steam generator vessel having a divider plate, a nozzle seal assembly includes two arcuate beams (of adjustable length) generally following the curvature of the vessel wall, one beam lying generally alongside the divider plate and the other extending diametrically across the nozzle seal and being coupled thereto. The outer ends of the beams are anchored to the outer edge of the tube sheet and have brace members which bear against the vessel wall. The inner walls of the beams are interconnected by a thrust assembly which bears against the divider plate and includes an adjustable jacking screw means for urging the beams against the tube sheet.