| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an oxygen enricher which can inhibit the diffusion of moisture to an adsorption cylinder during a shutdown. <P>SOLUTION: This oxygen enricher 1 comprises a compressor 2 for compressing air, a plurality of adsorption cylinders 3a and 3b filled with an adsorbent a3 for adsorbing nitrogen selectively, and a switching means 4 for making the adsorption cylinders 3a and 3b adsorb nitrogen by alternately supplying the compressed air from the compressor 2 to each adsorption cylinder 3a and 3b, and on the other hand, making the adsorption cylinders 3a and 3b desorb/exhaust the nitrogen. In addition, moisture absorption cylinders 7a and 7b filled with a moisture absorbent "m" which absorbs moisture from the compressed air, are arranged independently between the switching means 4 and each adsorption cylinder 3a and 3b. Further, shut-off valves 8a and 8b which open during operation to enrich oxygen and close to shut off the penetration of moisture into the adsorption cylinders 3a and 3b during operation stoppage, are arranged between the moisture absorption cylinders 7a and 7b and each adsorption cylinder 3a and 3b. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
