FIELD: heat engineering.
SUBSTANCE: group of inventions relates to a sealed and heat-insulating tank. The tank contains auxiliary insulating barrier (2), corrugated auxiliary sealing membrane (3), main insulating barrier (4) and corrugated main sealing membrane (5). Main corrugations (14) and auxiliary corrugations (10) are superimposed on each other in the thickness direction, wherein the size of main insulating barrier (4) in the thickness direction is smaller than the size of auxiliary corrugations (10) in the mentioned thickness direction, so that auxiliary corrugations (10) pass through passages (13) of main insulating barrier (4), and they are partially placed in main corrugations (14). The tank additionally contains main reinforcing element (20) located between superimposed auxiliary corrugation (10) and main corrugation (14) in the thickness direction to strengthen mentioned main corrugation (14).
EFFECT: provision of a sealed and heat-insulating tank with reinforced corrugations of the main sealed membrane.
15 cl, 6 dwg
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