An apparatus for supplying an oxygen-enriched air includes hollow membrane units spaced apart from each other, for separating a surrounding air thereof into an oxygen-enriched air and a nitrogen-enriched air, a vacuum pump for sucking in the surrounding air via the separation membrane units to draw
An apparatus for supplying an oxygen-enriched air includes hollow membrane units spaced apart from each other, for separating a surrounding air thereof into an oxygen-enriched air and a nitrogen-enriched air, a vacuum pump for sucking in the surrounding air via the separation membrane units to draw in and provide the oxygen-enriched air, and an oxygen-enriched air discharging unit for discharging the oxygen-enriched air. Each of the hollow separation membrane units is of generally a thin cuboidal shape, and the vacuum pump and the oxygen-enriched air discharging unit communicate with each other.
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1. An apparatus for supplying an oxygen-enriched air, comprising:one or more hollow separation membrane units spaced apart from each other, for separating a surrounding air thereof into an oxygen-enriched air and a nitrogen-enriched air;an oxygen-enriched air suction means for sucking in the surroun
1. An apparatus for supplying an oxygen-enriched air, comprising:one or more hollow separation membrane units spaced apart from each other, for separating a surrounding air thereof into an oxygen-enriched air and a nitrogen-enriched air;an oxygen-enriched air suction means for sucking in the surrounding air via said one or more hollow separation membrane units to draw in and provide the oxygen-enriched air, wherein the oxygen-enriched air suction means is a vacuum pump;an oxygen-enriched air discharging unit for discharging the oxygen-enriched air, the vacuum pump communicating with the oxygen-enriched air discharging unit; anda vibration damping device provided between the vacuum pump and the oxygen-enriched air discharging unit, for damping vibrations induced by the vacuum pump. 2. The oxygen-enriched air supplying apparatus of claim 1, wherein each of said one or more hollow separation membrane units is of generally a thin cuboidal shape having one open end through which the oxygen-enriched air is drawn. 3. The oxygen-enriched air supplying apparatus of claim 1, wherein each hollow separation membrane unit is made of a polymer. 4. The oxygen-enriched air supplying apparatus of claim 3, wherein the polymer is selected from the group consisting of a silicon base, an olefin base, a fluoric base, and a phenylene-ether base polymer. 5. The oxygen-enriched air supplying apparatus of claim 1, wherein the vibration damping device includes a pair of vibration damping pipes and a connection tube provided therebetween, each of the vibration damping pipes having a plurality of cross sections through which the oxygen-enriched air flows and the cross sections being different in their sectional areas from each other. 6. The oxygen-enriched air supplying apparatus of claim 5, wherein the cross sections include a first to a fourth cross sectional portion, the second cross sectional portion having a smaller cross sectional area than that of the first cross sectional portion, the third cross sectional portion having a cross sectional area ranging from that of the second cross sectional portion to that of the first cross sectional portion, and the fourth cross sectional portion having a smaller cross sectional area than that of the second cross sectional portion, and the connection tube having a cross sectional area smaller than that of the fourth cross sectional portion. 7. The oxygen-enriched air supplying apparatus of claim 6, wherein the cross-sectional portions are of a polygonal shape. 8. The oxygen-enriched air supplying apparatus of claim 6, wherein the cross sectional portions are of a circular shape. 9. The oxygen-enriched air supplying apparatus of claim 1, further comprising:an aromatic material adding unit for selectively supplying an aromatic material to the oxygen-enriched air discharging unit. 10. The oxygen-enriched air supplying apparatus of claim 9, wherein the aromatic material adding unit includes:a selective communicator for selectively introducing a portion of the oxygen-enriched air;a scent casing having therein an aromatic material embedding material, for mixing the introduced portion of the oxygen-enriched air with the aromatic material; andan adjustor provided between the scent casing and the oxygen-enriched air discharging unit, for controlling the amount of a mixture of the oxygen-enriched air and the aromatic material to be provided to the oxygen-enriched air discharging device. 11. The oxygen-enriched air supplying apparatus of claim 10, wherein the selective communicator is an on and off valve or a solenoid valve. 12. The oxygen-enriched air supplying apparatus of claim 10, wherein the aromatic material adding unit further includes:a passage for making the oxygen-enriched air pass through;a pair of couplings communicating with the passage respectively, wherein one of the couplings has a first port for introducing the oxygen-enriched air, and a second and a third port connected to the passage and the scent casin g respectively, and the other thereof has a fourth and a fifth port connected to the scent casing and the passage respectively, and sixth port for guiding the oxygen-enriched air and the mixture of the oxygen-enriched air and the aromatic material. 13. The oxygen-enriched air supplying apparatus of claim 1, further comprising:means for removing the nitrogen-enriched air separated by said one or more hollow separation membrane units and supplying a fresh air thereto. 14. The oxygen-enriched air supplying apparatus of claim 13, wherein the nitrogen-enriched air removing means is a blower.
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이 특허에 인용된 특허 (17)
Prasad Ravi, Advanced membrane system for separating gaseous mixtures.
Young Thomas C. (Walnut Creek CA) Caskey Terrence L. (Concord CA) Trimmer Johnny L. (Antioch CA) Mahley ; III George E. (Berkeley CA) Yoshisato Randall A. (Vallejo CA) Jensvold John A. (Benicia CA), Boreside feed hollow fiber membrane device.
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