| 摘要 |
<p>PROBLEM TO BE SOLVED: To secure an enough performance of an adsorbent, by restricting the flow rate of a gas flowing in an adsorption tower when returning the gas into a recovered appliance staying in a vacuous state in the case of recovering completely the gas included in the recovered appliance by evacuating it through using a vacuum pump. SOLUTION: This apparatus (A) is so configured as to have a compressor for sucking a gas from a recovered appliance (B) subjected to a gas-recovery and for compressing the gas, a recovery container 1 for recovering the gas compressed by the compressor therein to leave it gaseous or liquidize it, and an adsorption tower 33 for storing therein an adsorbent for removing the moisture of a gas from it when returning the gas from the recovery container 1 to the recovered appliance B. Further, this apparatus A has a vacuum pump for exhausting the gas included in the recovered appliance B by evacuating it and for feeding the gas to the side of the compressor, and has a pressure holding valve 52 interposed between the recovered appliance B and a pipe line 30 for holding at a predetermined pressure-level the pressure of the side of the adsorption tower 33.</p> |
