TIGHT WALL STRUCTURE Russian patent published in 2020 - IPC F17C13/00 F17C3/04 

FIELD: storage of gases.

SUBSTANCE: sealed and heat-insulating reservoir comprises heat-insulating barrier forming support surface (1), metal tight membrane, comprising a plurality of metal belts (9) having a flat middle portion (10) and two raised side edges (11) formed from opposite longitudinal edges of the flat middle portion (10). Heat-insulating barrier has a recess made in the direction of thickness of insulating elements (12). Recess bottom forms section (21) of bearing surface (1, 21). Recess passes in longitudinal direction and has open opening and retaining zone (20) passing in lateral direction perpendicularly or at angle to direction of thickness of insulating elements. Metal belt forms fastening belt (4), the flat middle section (14) of which lies on the bottom of the recess. Fixing belt (4) comprises fastening flange (22) protruding laterally from longitudinal edge of flat middle section (14) and passing in retaining area (20) of recess of heat-insulating barrier, retaining fastening belt (4) on support surface (21) in direction of thickness. Each raised side edge (15) of fastening belt (4) is tightly welded to raised side edge (11) of corresponding adjacent metal belt (9).

EFFECT: technical result is higher flexibility of sealed membrane.

21 cl, 11 dwg