| 摘要 |
<p>PURPOSE: To improve energy efficiency by connecting an adsorbent bed to two liquid tanks and evacuating the adsorbent bed by the hydrostatic pressure generated by passing liquid from the tank existing in a position to the tank existing in a low position. CONSTITUTION: At the time of regeneration of a PSA bed, valves 1, 2, 3 are initially closed and a valve 4 is open, but when the valve 2 opens, the nontoxic liquid is sent from the tank A2 existing in the low position to the tank A3 existing in the high position and the liquid level changes from A to B and from C to D is the figure. The valve 4 is then closed and the valve 2 is opened and, after the PSA bed is reduced down to the atm. pressure, the valve 2 is closed and the valve 3 is opened to restore the liquid level to the initial level, by which the vacuum is generated in the PSA bed.</p> |
