公开(公告)号：US20250137588A1

公开(公告)日：2025-05-01

申请号：US18923424

申请日：2024-10-22

Applicant: GAZTRANSPORT ET TECHNIGAZ

Inventor： Jean-Guy ROUZEAU ,  Leo COQUAND

IPC: F17C3/00 ,  F17C9/00

Abstract: A liquefied gas storage facility (1) has a load-bearing structure (10) having a bottom wall (11) and a vertical load-bearing wall (12) made up of N vertical load-bearing panels (14), and a tank comprising a bottom wall (21) and a vertical wall (22). The bottom wall (21) has a plurality of angular sectors. The corrugated sealing membrane (70, 170) of each angular sector (25) has first corrugations (72). The corrugated sealing membrane (70, 170) of each angular sector (25) has a plurality of metal plates (71) arranged to form ring portions (75). The ring portions (75) consist of a set of complete metal plates. The total number of first corrugations (72) present on the ring portions (75) increases in the direction of the vertical wall (22). The total number being increased only every M successive ring portions (75), where M is a natural integer greater than or equal to 2.