INVAR MEMBRANE TANK
PROBLEM TO BE SOLVED: To provide a low temperature liquefied gas tank capable of storing low temperature liquefied gas by absorbing heat contraction caused in each part without complicated corrugations intersecting each other and absorbing displacement in the shearing direction between a side wall a...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a low temperature liquefied gas tank capable of storing low temperature liquefied gas by absorbing heat contraction caused in each part without complicated corrugations intersecting each other and absorbing displacement in the shearing direction between a side wall and a bottom plate when non-uniform load such as an earthquake or the like is applied. SOLUTION: This hollow cylindrical low temperature liquefied gas tank is provided with the concrete side wall 1 the bottom plate 2 and a membrane 4 water-tightly sealing the inner surfaces of the above. The membrane is a weldeable metal thin plate (invar material) having a linear expansion coefficient of 2×10-6 deg.C or less, and a corrugation part 10 continuously extending in the circumferential direction is provided in a part positioned on the surface of the bottom plate. |
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