| 摘要 |
PURPOSE:To reserve cold of a tank simply and surely by constituting a device body in a threefold structure by arranging plural peripheral walls successively around the tank, and filling vapor gas of liquid gas into a cold reserving space around the tank to store the liquid gas. CONSTITUTION:A device body is constituted in a threefold structure composed of a tank 1 to store liquid gas, and an inner shell 2 and an outer shell 3 as respective peripheral walls to surround this tank 1 successively. A dome 6 is arranged in the top part of the tank 1 so as to insert a pipeline 12 to load and unload the loading liquid gas, and the outer periphery of the tank 1 is covered with a cold reserving material 4. A cold reserving space 9 is defined between the tank 1 and the inner shell 2, and a bottom surface of the tank 1 is supported with a tank support material 5 arranged on a bottom surface of the inner shell 2. The inner shell 2 is supported with the outer shell 3, and a double shell wall is formed of these. On the other hand, a gas pipe 7 is arranged in the dome 6 so as to introduce evaporated gas to a heater 8, and the gas heated here is introduced to the cold reserving space 9 by a pipe 10. |
