| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an oxygen enrichment apparatus capable of eliminating the transmission of bubbling sound to a living room and preventing unintentional dilution of oxygen concentration of oxygen-enriched air. <P>SOLUTION: The oxygen enrichment apparatus 15 comprises an oxygen enrichment membrane module 61, a vacuum pump 65, an air supply fan 54, and an oxygen-enriched air discharge path 67. The oxygen enrichment membrane module 61 comprises a casing 62 and an oxygen enrichment membrane 63. The oxygen enrichment membrane 63 is installed in the casing 62 in a manner that a space in the casing 62 is divided into a primary side space S1 and a secondary side space S2. The vacuum pump 65 is installed for producing first oxygen-enriched air in the secondary side space S2 by reducing the pressure of the secondary side space S2 so as to pass the air supplied to the primary side space S1 through the oxygen enrichment membrane 63 toward the secondary side space S2. The air supply fan 54 is installed to supply the first oxygen-enriched air to an object space to be enriched with oxygen. The oxygen-enriched air discharge path 67 is installed for discharging the firsts oxygen-enriched air to a installation space SP of the air supply fan from the vacuum pump 65. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
