DEW-POINT TEMPERATURE CONTROL DEVICE AND DEW-POINT TEMPERATURE CONTROL METHOD

摘要

To provide a device and a method which can adjust a dew-point temperature at low cost in an internal space of a container in which cryogenic liquefied gas is stored.SOLUTION: A dew-point temperature control device includes an internal pressure gauge which detects an internal pressure being a pressure in an internal space, a decompression pump which decompresses the internal space, and a control unit configured to operate the decompression pump until the internal pressure detected by the internal pressure gauge decreases to an internal pressure threshold value or less, so as to decompress the internal space.SELECTED DRAWING: Figure 1