To keep a pressure of a gas layer in an inner tank low, while suppressing condensation of a gas in a space between the inner tank and an outer tank.SOLUTION: A multiple shell tank includes: an inner tank for storing a low temperature liquid inside; an outer tank housing the inner tank; and a housing structure housing the outer tank. A heat insulation space between the inner tank and the outer tank is filled with a gas of the kind same as a gas obtained by vaporization of the low temperature liquid, a pressure of a gas layer inside of the inner tank is higher than a pressure of the heat insulation space, and a pressure of the heat insulation space is lower than a pressure of a holding space between the outer tank and the housing structure.SELECTED DRAWING: Figure 2

    【課題】内槽と外槽との間の空間においてガスが凝縮されるのを抑制しつつ、内槽内の気層の圧力を低く保つことを可能にする。【解決手段】一態様に係る多重殻タンクは、内部に低温液体が貯蔵された内槽と、内槽を収容する外槽と、外槽を収容する収容構造と、を備え、内槽と外槽との間の断熱空間には、低温液体が気化したガスと同じ種類のガスが充填されており、内槽内の気層の圧力は、断熱空間の圧力より高く、断熱空間の圧力は、外槽と収容構造との間の保持空間の圧力より低い。【選択図】図2


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    Title :

    MULTIPLE SHELL TANK, SHIP, AND GAS PRESSURE ADJUSTMENT METHOD


    Additional title:

    多重殻タンク、船舶およびガス圧調整方法


    Contributors:

    Publication date :

    2022-10-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F17C Behälter zum Aufnehmen oder Speichern verdichteter, verflüssigter oder verfestigter Gase , VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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