An arrangement for joining tight transition improved sealingly an envelope to a cooled membrane wall of a liquid steam generator

摘要

A transition seal plate for connecting a casing to a membrane wall of a vapor generator. The plate has a generally corrugated edge which is weld connected to the membrane wall and is formed with arcuate surfaces which overlap circumferential surface portions of the tubes within the membrane wall, and protrusions which project into the spaces between the circumferential surface portions.