| 摘要 |
PROBLEM TO BE SOLVED: To economically prevent formation of dew condensation on an outside face of an outer tank by means of a simple structure using atmospheric heat by charging a cold reserving material with thermal conductivity higher than that of a heat insulating material on the inside of the outer tank in the part penetrated by a support. SOLUTION: On the inside of an outer tank 3a, predetermined areas of a cold reserving layer 4 in the vicinity of the lower part, through which a skirt structure support 7a vertically dividing the cold reserving layer 4 is passed, and in the vicinity of the part, to which a vibration stopping material 80 is connected, are filled with a cold reserving material 6, which has thermal conductivity higher than that of a thermal insulating material 5 and constitutes a part of the cold reserving layer 4. Therefore, in the outer tank part 3a, the part penetrated by the support 7a and the part connected to a connecting member 8 are heated by the heat applied from the atmosphere, and no condensation water is generated on the outer tank part 3a outside face, so that adhesion of soft can be prevented. In addition, the structure is simplified because condensation can be prevented only by filling with the cold reserving material 6 with thermal conductivity higher than that of the thermal insulating material 5, and consequently, a simple economical cold serving structure using atmospheric heat for preventing condensation can be provided.
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