| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a gas enriching device for actualizing stable gas enriching operation without freezing moisture condensate water in a secondary-side transportation pipeline for a gas enriching means even at a low outside air temperature. <P>SOLUTION: The gas enriching device 30 comprises the gas enriching means 2 for increasing the concentration of a predetermined gas component of air and releasing primary-side air from the secondary side, a differential pressure generator 3 for making secondary- side atmospheric pressure in the gas enriching means lower than primary-side atmospheric pressure, a temperature sensor for detecting the temperature of the atmospheric air, and a control part 12 for controlling the generation of differential pressure according to a detected temperature. <P>COPYRIGHT: (C)2004,JPO</p> |
