| 摘要 |
PURPOSE:To simultaneously decrease the pressure variation of an underground base rock and adjust the temperature in the underground cavity, safely receive the low temperature, LPG, and store it at normal temperatures by using a system which watertightly stores the LPG in the underground cavity and arranging two direct contact type heat exchangers. CONSTITUTION:The second heat exchanger 6 functions as a condenser that uses supplied LPG as a cool source. Thus, the supplied LPG receives heat and increases its temperature, thereby decreasing the temperature rise load of the LPG in the first heat exchanger. As a result, the low temperature LPG is safely and economically received and stored at normal temperatures by reducing the pressure variation width in the underground cavity 1 as much as possible and effectively increasing the LPG temperature for its reception. |
