LOWER WALL OF LIQUEFIED GAS STORAGE TANK Russian patent published in 2023 - IPC F17C3/04 F17C9/00 B67D9/00 B63B25/16 

FIELD: gas transportation.

SUBSTANCE: tank for transportation and/or storage of liquefied gas. The tank contains a group of walls, each of which contains, in the direction along the wall thickness, a heat-insulating barrier and one sealed membrane located close to the heat-insulating barrier and in contact with the liquefied gas inside the tank (21). The heat-insulating barrier contains a group of self-supporting heat-insulating plates, each of which contains a polymer foam block and one sheet, while the bottom wall (27) from the group of walls contains one first part (29) and a partially encircling second part (31) of the bottom wall (27). The second part (31) contains one drain channel. The polymer foam blocks of the second part (31) have a density higher than the density of the polymer foam blocks of the first part (29).

EFFECT: increased the strength of the tank.

17 cl, 6 dwg