| 摘要 |
A method and apparatus for the lining of rounded arcuate chamber areas (12) is disclosed. One edge (22) of a flexible, rectangular sheet (20) of lining material is attached to the substrate wall (12) of the chamber by welding. The opposite end (24) from the now attached side is compressed laterally to bow the sheet into contact with the wall (12). Keeper welds (16) or attachments are made, and the compressive force is relieved. The installers are now free to complete the seam welds around the periphery of the sheet (20). In the preferred embodiment, the sheet is made of a high nickel alloy (HNA) and the arcuate chamber is a desulfurization duct or absorber tower. Successive sheets are overlapped approximately one inch on the sides and top/bottom. |
