| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a device capable of correctly keeping the track of a periodical change of the performance of a pressure variation adsorbing oxygen condenser. SOLUTION: In the oxygen condenser having at least one adsorption bed filled with an adsorbent selectively adsorbing nitrogen rather than oxygen and an air supplying means supplying air to the adsorption bed, and an oxygen supplying means supplying enriched oxygen generated in the adsorption bed to a user, a means to measure the actual amount of enriched oxygen generated is provided, and a comparison means to discriminate the periodical change of the performance of the condenser by comparing the result of measurement with an initially set threshold value of amount of oxygen generated is provided.</p> |
