BOTTOM WALL OF A LIQUEFIED GAS STORAGE TANK
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United States of America Patent
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Issued Date -
Oct 12, 2023
app pub date -
Sep 8, 2021
filing date -
Sep 11, 2020
priority date (Note) -
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Abstract
A tank for transporting and/or storing a liquefied gas includes: a plurality of walls, each including, in a direction of the thickness of the wall, a thermally insulating barrier and a leak-tight membrane that rests against the thermally insulating barrier and is intended to be in contact with the liquefied gas inside the tank, the thermally insulating barrier including a plurality of self-supporting heat-insulating panels which each includes a block of polymer foam and a plate, a bottom wall of the plurality of walls includes a first portion at least partially surrounding a second portion of the bottom wall, the second portion including drain. The blocks of polymer foam of the second portion have a density greater than a density of the polymer foam blocks of the first portion.
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