JP2002047003A - Adsorbing type oxygen generating device - Google Patents
Adsorbing type oxygen generating deviceInfo
- Publication number
- JP2002047003A JP2002047003A JP2000235499A JP2000235499A JP2002047003A JP 2002047003 A JP2002047003 A JP 2002047003A JP 2000235499 A JP2000235499 A JP 2000235499A JP 2000235499 A JP2000235499 A JP 2000235499A JP 2002047003 A JP2002047003 A JP 2002047003A
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- adsorption
- gas
- measure
- adsorbing
- 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
- Oxygen, Ozone, And Oxides In General (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、大気から分離さ
れ、特定濃度の酸素ガスを供給する装置に関する。さら
に詳しくは、大気中よりも低い酸素濃度から９０％以上
の高濃度まで、所望の濃度の酸素ガスを供給することが
可能な吸着型酸素発生装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supplying oxygen gas having a specific concentration separated from the atmosphere. More specifically, the present invention relates to an adsorption-type oxygen generator capable of supplying a desired concentration of oxygen gas from an oxygen concentration lower than that in the atmosphere to a high concentration of 90% or more.
【０００２】[0002]
【従来の技術】肺気腫、慢性気管支炎等の呼吸器系疾患
の治療法として最も効果的なものの１つに酸素吸入法が
あり、近年、この療法のために、大気中から酸素を分離
し酸素濃縮空気として使用者に供給する酸素濃縮装置が
開発されている。特に、ゼオライト５Ａ、１３Ｘなどの
酸素よりも窒素を選択的に吸着する吸着剤を充填した吸
着床を使用した圧力変動吸着型の酸素濃縮装置が医療用
途として在宅酸素療法などに使用されている。2. Description of the Related Art One of the most effective methods for treating respiratory diseases such as emphysema and chronic bronchitis is an oxygen inhalation method. In recent years, oxygen has been separated from the atmosphere for this therapy. An oxygen concentrator has been developed which supplies the user as enriched air. In particular, a pressure fluctuation adsorption type oxygen concentrator using an adsorbent bed filled with an adsorbent for selectively adsorbing nitrogen rather than oxygen, such as zeolite 5A or 13X, is used for home oxygen therapy or the like as a medical application.
【０００３】かかる吸着型酸素濃縮器は、至適条件で９
０％以上の酸素濃度のガスを発生することができ、呼吸
器疾患患者は１Ｌ／分〜５Ｌ／分と言った処方流量で鼻
カニューラなどの供給手段で酸素ガスを吸入している。[0003] Such an adsorption-type oxygen concentrator can be used under optimum conditions.
A gas having an oxygen concentration of 0% or more can be generated, and a respiratory disease patient inhales oxygen gas by a supply means such as a nasal cannula at a prescribed flow rate of 1 L / min to 5 L / min.
【０００４】また、特開平８−２６８７０１号公報に記
載のような吸脱着の至適条件を外して従来の酸素富化膜
を使用する膜式酸素濃縮器と同じ４０％濃度の酸素ガス
を発生する装置も開発されている。Also, the optimum conditions for adsorption and desorption as described in JP-A-8-268701 are removed, and oxygen gas having a 40% concentration is generated as in a conventional membrane oxygen concentrator using an oxygen-enriched membrane. Devices have been developed.
【０００５】[0005]
【発明が解決しようとする課題】従来の酸素濃縮装置
は、医療用途を目的とし、高濃度の酸素を発生する装置
である。しかし、低酸素環境下での動物や植物の適応性
など実験用としては所定濃度の低酸素濃度のガスを発生
する装置が必要となる。大気よりも低い酸素環境下を実
現する為には、圧力変動吸着技術を使用した窒素ガス発
生装置を使用する方法がある。しかし、低酸素環境、す
なわち窒素濃度８０〜１００％のガスを圧力変動吸着型
の窒素濃縮装置で発生させた場合、濃度が安定せず、ま
た高濃度条件下での濃度可変が難しいと言う問題点があ
る。高圧窒素ガスボンベと高圧酸素ガスボンベを使用
し、両者の混合比を可変にする事で所定濃度の酸素ガス
を得る事が出来るが、長期の動物実験などではガス切れ
の問題があり、長期連続運転には不向きである。A conventional oxygen concentrator is a device for generating high-concentration oxygen for medical use. However, for experiments such as the adaptability of animals and plants in a low oxygen environment, a device for generating a gas having a predetermined low oxygen concentration is required. In order to realize an oxygen environment lower than the atmosphere, there is a method using a nitrogen gas generator using a pressure fluctuation adsorption technique. However, when a low oxygen environment, that is, a gas having a nitrogen concentration of 80 to 100% is generated by a pressure fluctuation adsorption type nitrogen concentrator, the concentration is not stable, and it is difficult to change the concentration under high concentration conditions. There is a point. By using a high-pressure nitrogen gas cylinder and a high-pressure oxygen gas cylinder and varying the mixing ratio of the two, it is possible to obtain oxygen gas of a predetermined concentration. Is not suitable.
【０００６】[0006]
【課題を解決するための手段】本発明者は、上記問題点
を解決する装置について鋭意検討した結果、圧力変動吸
着型酸素濃縮装置を使用し、窒素リッチの排気ガスを回
収する事により、高酸素濃度領域から大気以下の酸素濃
度領域まで供給する事が出来る酸素ガス発生装置を見出
した。Means for Solving the Problems As a result of diligent studies on an apparatus for solving the above-mentioned problems, the present inventor has found that the use of a pressure fluctuation adsorption type oxygen concentrator and the recovery of nitrogen-rich exhaust gas enables the use of the apparatus. An oxygen gas generator capable of supplying oxygen from the oxygen concentration region to the oxygen concentration region below the atmosphere has been found.
【０００７】すなわち本発明は、酸素よりも窒素を選択
的に吸着する吸着剤を充填した吸着床、該吸着床に加圧
空気を供給する空気供給手段を備え、吸着・脱着を繰り
返すことにより酸素濃縮空気を発生する吸着型酸素発生
装置において、脱着工程で吸着床からの排ガスを貯溜す
るタンク手段、該吸着床と該タンク手段を繋ぐ自動開閉
弁を備えた導管手段、該タンク手段に貯溜されたガスを
供給するガス供給手段を備え、該脱着工程の内の特定時
間、該自動開閉弁を開く制御手段を備えることを特徴と
する吸着型酸素発生装置を提供するものである。That is, the present invention comprises an adsorption bed filled with an adsorbent for selectively adsorbing nitrogen rather than oxygen, and an air supply means for supplying pressurized air to the adsorption bed. In an adsorption-type oxygen generator for generating concentrated air, a tank means for storing exhaust gas from an adsorption bed in a desorption step, a conduit means provided with an automatic opening / closing valve connecting the adsorption bed and the tank means, and a storage means in the tank means The present invention provides an adsorption-type oxygen generator characterized by comprising gas supply means for supplying a gas, and control means for opening the automatic on-off valve for a specific time during the desorption step.
【０００８】また本発明はかかる制御手段が、供給酸素
濃度に応じて該自動開閉弁の開閉時間を切替える時間切
替手段を備えることを特徴とする吸着型酸素発生装置を
提供するものであり、特に、吸着工程で発生した酸素濃
縮空気と該タンク手段に貯溜したガスを特定比率で混合
する混合手段を備え、酸素濃度に合わせて該混合手段の
混合比率を切替える混合比切替手段を備えることを特徴
とする吸着型酸素発生装置を提供するものである。The present invention also provides an adsorption-type oxygen generator characterized in that the control means includes time switching means for switching the open / close time of the automatic on-off valve in accordance with the supplied oxygen concentration. A mixing means for mixing the oxygen-enriched air generated in the adsorption step and the gas stored in the tank means at a specific ratio, and a mixing ratio switching means for switching the mixing ratio of the mixing means in accordance with the oxygen concentration. It is intended to provide an adsorption-type oxygen generator having the following configuration.
【０００９】[0009]
【発明の実施の形態】以下に、本発明について、必要に
応じて図面を用いながらさらに詳細に説明する。図１に
本発明の吸着型酸素発生装置の好ましい実施態様例の概
略図を示す。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the drawings as necessary. FIG. 1 is a schematic view of a preferred embodiment of the adsorption-type oxygen generator of the present invention.
【００１０】本発明の吸着型酸素合生装置は、従来の吸
着型酸素濃縮器部分と脱着工程時の排気ガスを回収する
補助装置部分を組み合わせて低酸素濃度ガスを発生させ
る装置である。吸着型酸素濃縮器は、吸着工程時に酸素
よりも窒素を選択的に吸着しうる吸着剤を充填した吸着
床に加圧空気を供給する事により窒素を吸着させ、酸素
濃縮空気を取り出すと共に、脱着工程時には吸着した窒
素を大気圧、或いは真空に減圧することにより除去し、
吸着剤の再生を行い、この工程を繰り返す事により酸素
濃縮空気を生成する装置である。The adsorption-type oxygen synthesizing apparatus of the present invention is an apparatus for generating a low-oxygen-concentration gas by combining a conventional adsorption-type oxygen concentrator with an auxiliary unit for recovering exhaust gas during the desorption step. The adsorption type oxygen concentrator absorbs nitrogen by supplying pressurized air to an adsorption bed filled with an adsorbent capable of selectively adsorbing nitrogen over oxygen during the adsorption process, and takes out and desorbs oxygen-enriched air. During the process, the adsorbed nitrogen is removed by reducing the pressure to atmospheric pressure or vacuum,
This is an apparatus that generates oxygen-enriched air by regenerating the adsorbent and repeating this process.
【００１１】医療用など通常の酸素濃縮器は、脱着工程
時の排気ガスは大気中に排出される。本発明の装置で
は、排気ガスの排出用導管に自動開閉弁（流路切替弁）
を設け、排気ガスの一部を低酸素タンクに貯溜させる。
かかる自動開閉弁は、排気管から分岐し低酸素ガスを貯
溜するタンクに導く導管途中に設けられる電磁弁や分岐
部分に設けた３方流路切替えバルブなどが好ましく用い
られる。In an ordinary oxygen concentrator for medical use, exhaust gas at the time of the desorption step is discharged to the atmosphere. In the device of the present invention, an automatic opening / closing valve (flow path switching valve) is provided in the exhaust gas discharge conduit.
And a part of the exhaust gas is stored in the low oxygen tank.
As such an automatic opening / closing valve, an electromagnetic valve provided in the middle of a conduit leading from an exhaust pipe to a tank for storing low oxygen gas, a three-way flow switching valve provided in a branch portion, and the like are preferably used.
【００１２】排気ガスの酸素濃度は、図３に示すように
吸着床の脱着工程において２１％から経時的に低下し５
％まで低下する。本発明の装置では必要とする酸素濃度
に合わせて脱着工程中の所定時間、該自動開閉弁の開閉
を制御することにより、必要とする酸素濃度のガスをタ
ンク内に貯溜することができる。タンクに貯溜されたガ
スはポンプ手段、流量計を介して、低酸素空気供給口か
ら供給する。As shown in FIG. 3, the oxygen concentration of the exhaust gas gradually decreases from 21% in the adsorbing bed desorption step,
%. In the apparatus of the present invention, the gas having the required oxygen concentration can be stored in the tank by controlling the opening and closing of the automatic on-off valve for a predetermined time during the desorption process in accordance with the required oxygen concentration. The gas stored in the tank is supplied from a low oxygen air supply port via a pump means and a flow meter.
【００１３】大気中の酸素濃度以上のガスは、酸素濃縮
器の吸着工程で発生した酸素濃縮空気を供給する。通
常、かかる酸素濃縮空気は９０％以上の濃度のガスであ
る。２１％〜９０％の間のガス濃度調整は、例えば特開
平９−１８３６０１号公報に記載の方法を使用する事が
出来る。The gas having an oxygen concentration equal to or higher than the atmospheric oxygen concentration supplies oxygen-enriched air generated in the adsorption step of the oxygen concentrator. Usually, such oxygen-enriched air is a gas having a concentration of 90% or more. For adjusting the gas concentration between 21% and 90%, for example, a method described in JP-A-9-183601 can be used.
【００１４】また、濃度変化を詳細に設定する場合は、
図２に示すように、低酸素濃度ガスと高酸素濃度ガスの
混合比をガス混合手段を備えることにより、大気酸素濃
度以上の領域に於いても所定酸素濃度のガスを得ること
ができる。When the density change is set in detail,
As shown in FIG. 2, by providing the gas mixing means with a mixing ratio of the low oxygen concentration gas and the high oxygen concentration gas, a gas having a predetermined oxygen concentration can be obtained even in a region higher than the atmospheric oxygen concentration.
【００１５】[0015]
【発明の効果】本発明によれば、大気以下の低酸素濃度
のガスを供給する事が出来、低酸素環境下の長時間動物
実験が可能となり、更に同じ装置で、高濃度酸素環境下
での実験も行う事が出来る。医療や医学の進歩に役立つ
装置を供給する事が出来る。According to the present invention, a gas having a low oxygen concentration below the atmosphere can be supplied, and a long-term animal experiment can be performed in a low oxygen environment. Experiments can also be performed. We can supply equipment useful for medical care and medical progress.
【図１】図１は、本発明の吸着型酸素発生装置の実施態
様を模式的に示した概略図である。FIG. 1 is a schematic diagram schematically showing an embodiment of an adsorption-type oxygen generator of the present invention.
【図２】図２は、本発明の吸着型酸素発生装置の実施態
様を模式的に示した概略図である。FIG. 2 is a schematic diagram schematically showing an embodiment of the adsorption-type oxygen generator of the present invention.
【図３】図３は、吸着床の排出ガスの酸素濃度を示す図
である。FIG. 3 is a diagram showing the oxygen concentration of the exhaust gas of the adsorption bed.
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ０１Ｄ 53/04 Ｂ０１Ｄ 53/04 Ｂ // Ｃ０１Ｂ 21/04 Ｃ０１Ｂ 21/04 Ｇ Ｆターム(参考） 4C341 KL06 KL08 4D012 CA05 CB16 CD07 CE01 CF05 CG01 CH03 4G042 BA15 BB02 BC06 Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (reference) B01D 53/04 B01D 53/04 B // C01B 21/04 C01B 21/04 G F-term (reference) 4C341 KL06 KL08 4D012 CA05 CB16 CD07 CE01 CF05 CG01 CH03 4G042 BA15 BB02 BC06
Claims (3)
剤を充填した吸着床、該吸着床に加圧空気を供給する空
気供給手段を備え、吸着・脱着を繰り返すことにより酸
素濃縮空気を発生する吸着型酸素発生装置において、脱
着工程で吸着床からの排ガスを貯溜するタンク手段、該
吸着床と該タンク手段を繋ぐ自動開閉弁を備えた導管手
段、該タンク手段に貯溜されたガスを供給するガス供給
手段を備え、該脱着工程の内の特定時間、該自動開閉弁
を開く制御手段を備えることを特徴とする吸着型酸素発
生装置。1. An adsorbent bed filled with an adsorbent for selectively adsorbing nitrogen rather than oxygen, and an air supply means for supplying pressurized air to the adsorbent bed, and oxygen-enriched air is supplied by repeating adsorption and desorption. In the generated adsorption-type oxygen generator, a tank means for storing the exhaust gas from the adsorption bed in the desorption step, a conduit means provided with an automatic opening / closing valve connecting the adsorption bed and the tank means, and a gas stored in the tank means An adsorption-type oxygen generator, comprising: gas supply means for supplying; and control means for opening the automatic on-off valve for a specific time during the desorption step.
自動開閉弁の開閉時間を切替える時間切替手段を備える
ことを特徴とする請求項１記載の吸着型酸素発生装置。2. The adsorption-type oxygen generator according to claim 1, wherein said control means includes a time switching means for switching an open / close time of said automatic on-off valve in accordance with a supplied oxygen concentration.
ンク手段に貯溜したガスを特定比率で混合する混合手段
を備え、酸素濃度に合わせて該混合手段の混合比率を切
替える混合比切替手段を備えることを特徴とする請求項
１、２記載の吸着型酸素発生装置。3. Mixing means for mixing the oxygen-enriched air generated in the adsorption step and the gas stored in the tank means at a specific ratio, and mixing ratio switching means for switching the mixing ratio of the mixing means in accordance with the oxygen concentration. The adsorption-type oxygen generator according to claim 1, further comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000235499A JP2002047003A (en) | 2000-08-03 | 2000-08-03 | Adsorbing type oxygen generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000235499A JP2002047003A (en) | 2000-08-03 | 2000-08-03 | Adsorbing type oxygen generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002047003A true JP2002047003A (en) | 2002-02-12 |
Family
ID=18727697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000235499A Pending JP2002047003A (en) | 2000-08-03 | 2000-08-03 | Adsorbing type oxygen generating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002047003A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006021955A (en) * | 2004-07-08 | 2006-01-26 | Matsushita Electric Ind Co Ltd | Oxygen concentrator |
| JP2007069148A (en) * | 2005-09-08 | 2007-03-22 | Teruo Kobayashi | Apparatus for generating low-concentration oxygen |
| JP2011516538A (en) * | 2008-04-07 | 2011-05-26 | ユーティーアイ リミテッド パートナーシップ | Neonatal oxygen supply method and apparatus for use therein |
| CN104173119A (en) * | 2014-08-27 | 2014-12-03 | 无锡菩禾生物医药技术有限公司 | Intermittent hypoxia system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01184016A (en) * | 1988-01-20 | 1989-07-21 | Tokico Ltd | Apparatus for gas separation |
| JPH02303513A (en) * | 1989-05-18 | 1990-12-17 | Tokico Ltd | Storage device |
| JPH02307507A (en) * | 1989-05-19 | 1990-12-20 | Tokico Ltd | Gas separator |
-
2000
- 2000-08-03 JP JP2000235499A patent/JP2002047003A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01184016A (en) * | 1988-01-20 | 1989-07-21 | Tokico Ltd | Apparatus for gas separation |
| JPH02303513A (en) * | 1989-05-18 | 1990-12-17 | Tokico Ltd | Storage device |
| JPH02307507A (en) * | 1989-05-19 | 1990-12-20 | Tokico Ltd | Gas separator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006021955A (en) * | 2004-07-08 | 2006-01-26 | Matsushita Electric Ind Co Ltd | Oxygen concentrator |
| JP2007069148A (en) * | 2005-09-08 | 2007-03-22 | Teruo Kobayashi | Apparatus for generating low-concentration oxygen |
| JP2011516538A (en) * | 2008-04-07 | 2011-05-26 | ユーティーアイ リミテッド パートナーシップ | Neonatal oxygen supply method and apparatus for use therein |
| US8689788B2 (en) | 2008-04-07 | 2014-04-08 | Uti Limited Partnership | Oxygenation procedures for newborns and devices for use therein |
| US9649333B2 (en) | 2008-04-07 | 2017-05-16 | Uti Limited Partnership | Oxygenation procedures for newborns and devices for use therein |
| CN104173119A (en) * | 2014-08-27 | 2014-12-03 | 无锡菩禾生物医药技术有限公司 | Intermittent hypoxia system |
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