SEALED AND HEAT-INSULATED TANK Russian patent published in 2023 - IPC F17C3/02 F17C13/06 

FIELD: tanks.

SUBSTANCE: present invention relates mainly to a sealed and insulating tank (1) having at least one structure (2) for storing fluid and a supporting structure (4) enclosing the structure (2) of the storage, the structure (2) of the storage containing a group of walls, namely, at least the ceiling wall (6), the bottom wall (8) and the group of side walls (10a, 10b) continuing between the ceiling wall (6) and the bottom wall (8), while at least the ceiling wall (6) contains the first section (46) and the second section (48), while the first section (46) has a sealed and heat-insulating secondary space (28) and a sealed and heat-insulating primary space (30) sequentially in the thickness direction from the outside to the inside of the tank (1), while the secondary space (28) is made with the possibility of contact with the support structure (4), while the primary space (30) limits the internal volume (44) intended to receive the fluid contained in the reservoir (1), while the second section (48) contains a sealed and heat-insulating layer (50), characterized in that the sealed and heat-insulating layer (50) of the second section (48) is in contact with the support structure (4), participating in the delimitation of the internal volume (44) of the tank (1), when this ratio of the surface area of the second section (48) of the ceiling wall (6) to the total surface area of the ceiling wall (6) is from 5% to 60%.

EFFECT: effective performance.

14 cl, 4 dwg