| 摘要 |
<p>A solvent recovery system is disclosed with at least two adsorbers and a condenser. A first gas which is enriched with solvent vapor is guided for adsorbtion over the first adsorber. Simultaneously, a second gas is guided for the pickup of solvent vapor which has been released by the second adsorber previously charged with solvent vapor so as to discharge it while being heated. The second gas which is charged with solvent vapor is guided over the condenser in which the solvent precipitates out of the second gas. Following this, the second gas which for the most part is free of solvent is guided additionally over the first adsorber in order to attain a complete cleaning of the gas. After charging of the first adsorber the first gas is switched over to the second adsorber and the first adsorber is discharged. The switchover proceeds with the help of a multi-path valve which can connect an input conduit with the first adsorber and the second adsorber. Additionally, the multi-path valve for the discharging of the adsorbers can connect with the condenser. As gas, air is used both for the charging and discharging of the adsorbers.</p> |
