JPS5855309A - Oxygen enriched air generator - Google Patents
Oxygen enriched air generatorInfo
- Publication number
- JPS5855309A JPS5855309A JP15033081A JP15033081A JPS5855309A JP S5855309 A JPS5855309 A JP S5855309A JP 15033081 A JP15033081 A JP 15033081A JP 15033081 A JP15033081 A JP 15033081A JP S5855309 A JPS5855309 A JP S5855309A
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- air
- enriched air
- membrane
- suction pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、酸素富化空気発生装置に関し、特に酸素選択
透過膜を用いて酸素富化空気を得る酸素富化空気発生装
置に関し、その主な目的とするところは、高＃度の酸素
富化空気を容易に得ることができる酸素富化空気発生装
置を提供することである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an oxygen-enriched air generator, and more particularly to an oxygen-enriched air generator that obtains oxygen-enriched air using an oxygen selective permeation membrane. An object of the present invention is to provide an oxygen-enriched air generator that can easily obtain high-concentration oxygen-enriched air.
以下、図面によって本発明の詳細な説明する。Hereinafter, the present invention will be explained in detail with reference to the drawings.
図面は本発明の一実流側の系統図である。この酸素富化
空気発生装置１は、複数（図示２つ）の酸素選択透過膜
２．３と、Ｉｌｌ数（図示２つ）の吸引ポンプ４．５と
を含む。空気は吸引ポンプ４によって吸引されて酸素選
択透過膜２を流通することにより酸素富化され、さらに
吸引ポンプ５によって吸引されて酸素選択透過膜３を流
通することにより、さらに酸素富化される。The drawing is a system diagram of one actual flow of the present invention. This oxygen-enriched air generator 1 includes a plurality (two shown) of oxygen selectively permeable membranes 2.3 and an Ill number (two shown) of suction pumps 4.5. The air is enriched with oxygen by being sucked by the suction pump 4 and passed through the oxygen selectively permeable membrane 2, and further enriched with oxygen by being sucked by the suction pump 5 and passed through the oxygen selectively permeable membrane 3.
酸素選択透過膜２．３としては、たとえばポリジメチル
シロキサンのような高分子膜が用いられ、酸素透過係数
が１０−１°〜ｌＯ（ｃｃ−０ｍ７ｃｍ・８ｅＣ−Ｃｍ
−Ｈｇ）であって、分離係数が２〜３、すなわち酸素と
窒素が同一の分圧であるときに酸素が窒素の２〜３倍と
なる膜が好適である。なお、酸素選択透過膜２．３の上
流側には、酸素濃度の低い空気すなわち窒素富化空気が
残留するが、それらの窒素富化空気は二点鎖線矢符６．
７で示すように排出される。As the oxygen selective permeation membrane 2.3, a polymer membrane such as polydimethylsiloxane is used, and the oxygen permeability coefficient is 10-1° to lO (cc-0m7cm・8eC-Cm
-Hg) and has a separation coefficient of 2 to 3, that is, a membrane in which oxygen is 2 to 3 times that of nitrogen when oxygen and nitrogen have the same partial pressure is suitable. Note that air with a low oxygen concentration, that is, nitrogen-enriched air, remains on the upstream side of the oxygen selectively permeable membrane 2.3, and this nitrogen-enriched air is indicated by the dashed-double arrow 6.
It is discharged as shown at 7.
酸素選択透過膜２の出口および酸素選択透過膜３０入口
とは、吸引ポンプ４を備える管路８で連結されておシ、
酸素選択透ｆｉ［３の出口には吸引ポンプ５を備える管
路９が接続される。吸引ポンプ４は酸素選択透過膜２を
たとえば−６００ｍｍＨｇで吸引し、酸素選択透ｔ！に
膜３にはほぼ大気圧程度の酸素富化空気を供給する。ま
た、吸引ポンプ５は酸素選択透過膜３をたとえｄ −６
００ｍｍＨｇで吸引する。The outlet of the oxygen selectively permeable membrane 2 and the inlet of the oxygen selectively permeable membrane 30 are connected by a conduit 8 equipped with a suction pump 4,
A conduit 9 equipped with a suction pump 5 is connected to the outlet of the oxygen selective permeation filter fi[3. The suction pump 4 suctions the oxygen selective permeation membrane 2 at, for example, -600 mmHg, and the oxygen selective permeation t! Then, oxygen-enriched air at approximately atmospheric pressure is supplied to the membrane 3. In addition, the suction pump 5 is d −6
Aspirate at 00 mmHg.
酸素選択透過［２，３は空気の透過が生じはじめると、
直ちに膜表面に難透過性気体の分極が生じ、空気から酸
素の分離が阻害される性質を有する。これを防ぐために
は膜表面に新しい空気を絶えず送り込む必要がある。し
たがって、本発明のようＫ１１ｊ引ポンプ４，５によっ
て酸素選択透過膜２．３に空気を吸引流通させるように
することにより、必要な流量だけを流通させることがで
き、省エネルギの観点から優れている。Oxygen selective permeation [2, 3 is when air permeation begins to occur,
Polarization of the poorly permeable gas immediately occurs on the membrane surface, which has the property of inhibiting the separation of oxygen from the air. To prevent this, it is necessary to constantly feed new air to the membrane surface. Therefore, by sucking and circulating air through the oxygen selectively permeable membrane 2.3 using the K11j pumps 4 and 5 as in the present invention, only the necessary flow rate can be passed, which is excellent from the viewpoint of energy saving. There is.
管路８において、吸引ポンプ４の下流側には酸素富化空
気取出し管１０が接続される。この酸素富化空気取出し
管１０には開閉弁１１が備えられている。そのため開閉
弁１１を開弁することにより、酸素選択透過Ｆｓ２で酸
素富化された空気を任意に取出すことができる。In the pipe line 8, an oxygen-enriched air extraction pipe 10 is connected to the downstream side of the suction pump 4. This oxygen-enriched air extraction pipe 10 is equipped with an on-off valve 11. Therefore, by opening the on-off valve 11, the air enriched with oxygen through the selective oxygen permeation Fs2 can be taken out as desired.
酸素選択透過膜２，３の分離係数を２とした場合を想定
する。この場合において、第１段目の酸素選択透過膜２
に流入する空気中の酸素濃度を２１％、窒素濃度を７９
％とすると、酸素選択透過膜２を透過後の空気中の酸素
濃度Ｄ１は第１式で算出される。Assume that the separation coefficient of the oxygen selectively permeable membranes 2 and 3 is 2. In this case, the first stage oxygen selective permeable membrane 2
The oxygen concentration in the air flowing into the air is 21%, and the nitrogen concentration is 79%.
%, the oxygen concentration D1 in the air after permeating the oxygen selectively permeable membrane 2 is calculated using the first equation.
＝ ０．３４７ ・・・（１）すな
わち第１段目の酸素選択透過膜２では酸素濃度が３４．
７％まで富化される。次いで、第２段目の酸素選択透過
膜３においては、流入する′！！！気中の酸素濃度が３
４．７％であり、窒素濃度が６５．３％であるので、透
過後の酸素Ｗｋ度Ｄ２は第２式で算出される。= 0.347 (1) That is, the oxygen concentration in the first stage oxygen selective permeable membrane 2 is 34.
Enriched up to 7%. Next, in the second stage oxygen selective permeable membrane 3, '!' flows into the second stage oxygen selectively permeable membrane 3. ! ! The oxygen concentration in the air is 3
Since the oxygen concentration is 4.7% and the nitrogen concentration is 65.3%, the oxygen Wk degree D2 after permeation is calculated by the second equation.
０．３４７Ｘ２
Ｄ ２ ；□
０．３４７ Ｘ ２ ＋ ０．６５３ Ｘ １＝ ０．
５１５ ・・・（２）すなわ
ち第２段目の酸素選択透過膜３によって酸素濃度が５１
．５％まで高められた酸素富化空気を得ることができる
。0.347X2 D 2 ;□ 0.347 X 2 + 0.653 X 1= 0.
515...(2) That is, the oxygen concentration is 51 by the second stage oxygen selective permeation membrane 3.
．． Oxygen enriched air up to 5% can be obtained.
上述の実施例では２つの酸素選択透過［２，３を用いた
が、３以上の複数の酸素選択透過膜を多段直列に連結し
て酸素富化空気発生装置を構成してもよい。In the above-mentioned embodiment, two selectively permeable oxygen membranes [2 and 3] were used, but the oxygen-enriched air generator may be constructed by connecting three or more selectively oxygen membranes in series.
上述のごとく零発１５１によれば、酸素濃度を高め九峻
素富化空気を容易に得ることができる。しかも各酸素選
択透過膜は吸引ポンプでそれぞれ吸引されるので、必要
な流量だけの空気を流通させればよく、省エネルギが達
成される。As described above, according to the zero blast 151, it is possible to increase the oxygen concentration and easily obtain air enriched with air. Furthermore, since each oxygen selectively permeable membrane is suctioned by a suction pump, only the required flow rate of air needs to be passed through, thereby achieving energy savings.
図１１ｉｉは本発明の一実施例の系統図である。
１・−・酸素富化空気発生装置、２．３・−・酸素選択
透過膜、４．５・−吸引ポンプ、８．９・・・管路、１
０・・・酸素富化空気取出し管
代理人 弁理士 西教圭一部
冨FIG. 11ii is a system diagram of one embodiment of the present invention. 1.--Oxygen-enriched air generator, 2.3--Oxygen selective permeation membrane, 4.5--Suction pump, 8.9... Pipe line, 1
0...Oxygen-enriched air extraction pipe agent Patent attorney Keiichi Nishinobu Tomomi
Claims (2)
化する機能を有する複数の酸素選択透過膜を、相互間に
吸引ポンプを介して直列多段に連結するとともに、最終
段の酸素選択透過膜に吸引ポンプを連結して成ることを
特徴とする酸素富化空気発生装置。(1) A plurality of oxygen selectively permeable membranes, which have the function of selectively permeating oxygen in the circulating air and enriching it with oxygen, are connected in series in multiple stages via suction pumps between them, and the final stage An oxygen-enriched air generator comprising a selectively permeable membrane connected to a suction pump.
中には酸素富化空気取出し管がそれぞれ接続されること
を特徴とする特許請求の範囲第１項記械の酸素富化空気
発生装置。(2) The oxygen-enriched air of the apparatus set forth in claim 1, characterized in that oxygen-enriched air take-off pipes are connected in the middle of the pipes connecting the oxygen selectively permeable membranes. Generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15033081A JPS5855309A (en) | 1981-09-21 | 1981-09-21 | Oxygen enriched air generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15033081A JPS5855309A (en) | 1981-09-21 | 1981-09-21 | Oxygen enriched air generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5855309A true JPS5855309A (en) | 1983-04-01 |
Family
ID=15494651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15033081A Pending JPS5855309A (en) | 1981-09-21 | 1981-09-21 | Oxygen enriched air generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5855309A (en) |
-
1981
- 1981-09-21 JP JP15033081A patent/JPS5855309A/en active Pending
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