JPS5855310A - Oxygen enriched air generator - Google Patents

Oxygen enriched air generator

Info

Publication number
JPS5855310A
JPS5855310A JP15179381A JP15179381A JPS5855310A JP S5855310 A JPS5855310 A JP S5855310A JP 15179381 A JP15179381 A JP 15179381A JP 15179381 A JP15179381 A JP 15179381A JP S5855310 A JPS5855310 A JP S5855310A
Authority
JP
Japan
Prior art keywords
oxygen
air
permeable membrane
pump
selective permeable
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
Application number
JP15179381A
Other languages
Japanese (ja)
Inventor
Hiroyuki Mitsutomi
光富　博之
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osaka Gas Co Ltd
Original Assignee
Osaka Gas Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Osaka Gas Co Ltd filed Critical Osaka Gas Co Ltd
Priority to JP15179381A priority Critical patent/JPS5855310A/en
Publication of JPS5855310A publication Critical patent/JPS5855310A/en
Pending legal-status Critical Current

Links

Landscapes

  • Oxygen, Ozone, And Oxides In General (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE:To reduce the load of the sucking means of the titled generator by feeding compressed air to the selective oxygen permeable membrane with the compressing and feeding means, and passing the air through the membrane by suction with the sucking means. CONSTITUTION:The titled generator is composed of an oxygen enriching means 2 provided with a selective oxygen permeable membrane 1 for increasing the concn. of oxygen in air by the selective permeation of oxygen, a turbo-blower 3 for feeding air to the means 2 and a suction pump 4 for sucking and discharging oxygen enriched air from the means 2. Compressed air is fed to the means 2 with the turbo-blower 3, and oxygen enriched air is discharged with the pump 4. In operation with only the pump 4, too much load is put on the pump 4. Air is, however, fed in a compressed state with the turbo-blower 3, so the load of the pump 4 is relieved.

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、特に酸素選択性
透過膜に空気を吸引流過させて酸素富化空気を得る装置
に関し、その主な目的とするところは、前記空気を吸引
するｔめの吸引ポンプなどの吸引手段の負荷を軽減させ
九酸素冨化空気発生装置ｔＩ！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 apparatus for obtaining oxygen-enriched air by sucking and passing air through an oxygen-selective permeable membrane. The load on the suction means such as the tth suction pump that suctions the air is reduced, and the nine oxygen-enriched air generator tI! It is to provide.

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１１ｉＪｒｉ本発明の一実施例の系統図である。この
酸素富化空気発生装置は、酸素選択性透過膜Ｉｔ−備え
る酸素富化手段２と、その酸素富化手段２に空気を供給
する几めの圧縮供給手段としてのターボプロア３と、酸
素富化さｎた空気を酸素富化手段２から吸引して導出す
る吸引手段としての吸引ポンプ４とを含む。FIG. 11i is a system diagram of an embodiment of the present invention. This oxygen-enriched air generator includes an oxygen-enriching means 2 provided with an oxygen-selective permeable membrane It, a turboprower 3 as a compressed supply means for supplying air to the oxygen-enriching means 2, and an oxygen-enriching The apparatus includes a suction pump 4 as a suction means for suctioning and discharging the depleted air from the oxygen enrichment means 2.

酸素富化手段２のケーシング５内Ｖｃに、酸素選択性透
過膜１が設けられており、この酸素選択性透過膜ｌの上
流側には管路６を介してターボプロア３が接続さｎる。An oxygen selective permeable membrane 1 is provided in the casing 5 Vc of the oxygen enrichment means 2, and a turbo prower 3 is connected to the upstream side of the oxygen selective permeable membrane l via a conduit 6.

ま九酸素選択性透過膜ｌの下流側Ｖｃｒｉ管路７を介し
て吸引ポンプ４が接続される。A suction pump 4 is connected via a Vcri line 7 on the downstream side of the oxygen-selective permeable membrane 1.

酸素選択性透過膜１ｒ！、たとえばポリジメチルシロキ
サンのような高分子膜であり、酸素透過率が１０〜ｌＯ
（ＣＣ−ｃｍ／ｃｍ２・ｓｃｃ−ｃｍ−Ｈｇ）であって
、酸素透過率と窒素透過率との比が２以上の選択性を有
する膜が好適する。このような酸素選択性透過膜ｌは、
空気の流過時に比較的大なる圧力損失たとえば６００ｍ
ｍＨｇＱ生じる。しかも酸素選択性透過膜１は、突気の
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、空気からの酸素の分離が阻害される性質を
有する。こｎを防ぐためには、膜表面に新しい空気を絶
えず供給しなければならない。し九がって。Oxygen selective permeable membrane 1r! , for example, a polymer membrane such as polydimethylsiloxane, with an oxygen permeability of 10 to 1O
(CC-cm/cm2·scc-cm-Hg), and a membrane having selectivity with a ratio of oxygen permeability to nitrogen permeability of 2 or more is suitable. Such an oxygen selective permeable membrane l is
Relatively large pressure loss when air flows, e.g. 600m
mHgQ is produced. Moreover, the oxygen-selective permeable membrane 1 has a property that as soon as sudden air permeation begins to occur, polarization of a gas that is difficult to permeate occurs on the membrane surface, inhibiting the separation of oxygen from the air. To prevent this, fresh air must be constantly supplied to the membrane surface. Shut up.

吸引ポンプ４のみによって空気を酸素選択性透過膜ｌＴ
／ｃ透過させるように誘引することにより、必要な流量
だけの空気を誘引することができ、省エネルギの観点か
らは吸引ポンプ４のみによる運転が優れている。Air is passed through the oxygen selective permeable membrane IT only by the suction pump 4.
By inducing air to pass through /c, only the required flow rate of air can be induced, and from the viewpoint of energy saving, operation using only the suction pump 4 is superior.

ところが、上述したように、酸素選択性透過膜１の前後
の差圧け、ｔとえば約６００ｍｍＨｇと過大であり、吸
引ポンプ４のみによる運転では吸引ポンプ４の負荷が多
大である。しかも酸素選択性透過膜１の下流側では一６
００ｍｍＨｇ程度の高真空状Ｉｌになり、ケーシング５
や管路７のシール性を向上させなければならない。However, as described above, the differential pressure across the oxygen-selective permeable membrane 1 is excessive, for example, about 600 mmHg, and operation using only the suction pump 4 places a large load on the suction pump 4. Moreover, on the downstream side of the oxygen selective permeable membrane 1, 16
A high vacuum state of about 00 mmHg is created, and the casing 5
It is necessary to improve the sealing performance of the pipe and the pipe 7.

そこで本発明では、酸素選択性透過膜１の上流側にター
ボプロア３などの圧縮供給手段によって九とえば＋２０
０ｍｍＨｇの加圧状態で空気が供給される。そうするこ
とにより、吸引ポンプ４は一４００ｍｍＨｇ程度で吸引
する機能を有していればよく、負荷が軽減される。し九
がって吸引手段としては吸引性能の低い吸引ポンプ４を
用いることができる。しかもケーシング５および管路７
のシール性を向上させる必要もない。Therefore, in the present invention, the upstream side of the oxygen selective permeable membrane 1 is supplied with 9, for example +20
Air is supplied under pressure of 0 mmHg. By doing so, the suction pump 4 only needs to have a suction function of about -400 mmHg, and the load is reduced. Therefore, the suction pump 4 with low suction performance can be used as the suction means. Moreover, the casing 5 and the pipe line 7
There is no need to improve the sealing performance.

上述のととく不発ＦＩＡによれば、酸素選択性透過膜に
加圧状態で空気が供給されるので、吸引手段の負荷が軽
減される。According to the above-mentioned non-explosion FIA, air is supplied to the oxygen-selective permeable membrane under pressure, so the load on the suction means is reduced.

【図面の簡単な説明】[Brief explanation of drawings]

図面は本発明の一実施例の系統図である。 １・・・酸素選択性透過膜、３・・・ターボプロア、４
．・・・吸引ポンプ 代理人　　　弁理士　西教圭一部The drawing is a system diagram of one embodiment of the present invention. 1... Oxygen selective permeable membrane, 3... Turboproa, 4
．． ... Suction pump agent Patent attorney Kei Nishi

Claims (1)

【特許請求の範囲】[Claims] 酸素を選択的に透過して空気中の酸素濃度を上昇させる
酸素選択性透過膜に、圧縮供給手段によって加圧した空
気を供給するとともに、吸引手段によって前記空気ｆ、
吸引して前記酸素選択性透過膜ｔ−流過させることを特
徴とする酸素富化空気発生装置。Pressurized air is supplied by a compression supply means to an oxygen selective permeable membrane that selectively permeates oxygen to increase the oxygen concentration in the air, and the air f,
An apparatus for generating oxygen-enriched air, characterized in that the air is sucked and passed through the oxygen-selective permeable membrane.
JP15179381A 1981-09-24 1981-09-24 Oxygen enriched air generator Pending JPS5855310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15179381A JPS5855310A (en) 1981-09-24 1981-09-24 Oxygen enriched air generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15179381A JPS5855310A (en) 1981-09-24 1981-09-24 Oxygen enriched air generator

Publications (1)

Publication Number Publication Date
JPS5855310A true JPS5855310A (en) 1983-04-01

Family

ID=15526411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15179381A Pending JPS5855310A (en) 1981-09-24 1981-09-24 Oxygen enriched air generator

Country Status (1)

Country Link
JP (1) JPS5855310A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955998A (en) * 1987-08-21 1990-09-11 Sumitomo Seika Chemicals Co., Ltd. Process for separating gas

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5718644B2 (en) * 1974-03-26 1982-04-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5718644B2 (en) * 1974-03-26 1982-04-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955998A (en) * 1987-08-21 1990-09-11 Sumitomo Seika Chemicals Co., Ltd. Process for separating gas

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