JPS62140619A - Oxygen enricher - Google Patents
Oxygen enricherInfo
- Publication number
- JPS62140619A JPS62140619A JP60277816A JP27781685A JPS62140619A JP S62140619 A JPS62140619 A JP S62140619A JP 60277816 A JP60277816 A JP 60277816A JP 27781685 A JP27781685 A JP 27781685A JP S62140619 A JPS62140619 A JP S62140619A
- Authority
- JP
- Japan
- Prior art keywords
- air
- passage
- atmosphere
- oxygen
- enricher
- 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.)
- Granted
Links
Landscapes
- Separation Of Gases By Adsorption (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
Description
【発明の詳細な説明】
［技術分野］
本発明は、大気から酸素濃度の高められた空気を安定し
て１ｑるための装置に関するものであり、特に医療用と
して使用するのに適した圧力変動吸着型酸素富化器に関
する。さらに詳細には、本発明は医療用の圧力変動吸着
型酸素富化器において患者の近くで運転使用される際に
特に重要な問題となる騒音につき改良を加えたものであ
る。Detailed Description of the Invention [Technical Field] The present invention relates to a device for stably extracting 1 q of air with increased oxygen concentration from the atmosphere, and particularly relates to a pressure fluctuation device suitable for medical use. Regarding an adsorption type oxygen enricher. More specifically, the present invention improves noise, which is a particularly important problem when a medical pressure fluctuation adsorption type oxygen enricher is operated near a patient.
［従来技術］
医療用酸素富化器は家庭・病院等で患者の枕もと近くで
夜間でも使用するため、低騒音であることが必須の条件
となっている。酸素富化器としては、酸素選択透過膜を
用いた成型酸素富化器と、酸素又は窒素を選択的に吸着
する吸着剤を用いた吸着型酸素富化器の２種類のものが
開発されている。一般に真空ポンプ等を用いる成型酸素
富化器に比較して、圧縮器等を用いる吸着型酸素富化器
の方が発生する騒音のレベルが高いとされており、その
騒音対策が強く望まれていた。[Prior Art] Since medical oxygen enrichers are used at home, in hospitals, etc. near the patient's bedside, even at night, low noise is an essential condition. Two types of oxygen enrichers have been developed: a molded oxygen enricher using an oxygen selective permeation membrane and an adsorption type oxygen enricher using an adsorbent that selectively adsorbs oxygen or nitrogen. There is. In general, compared to molded oxygen enrichers that use vacuum pumps, etc., adsorption-type oxygen enrichers that use compressors, etc. are said to generate a higher level of noise, and there is a strong need for noise countermeasures. Ta.
医療用酸素富化器の騒音対策としては、主として成型酸
素富化器について検討されているが、吸着型酸素富化器
についてはあまり改善がなされておらず、未だ充分な低
騒音レベルに到達したものが得られていない。As a noise countermeasure for medical oxygen enrichers, molded oxygen enrichers are mainly being considered, but adsorption-type oxygen enrichers have not been significantly improved and have yet to reach a sufficiently low noise level. I'm not getting anything.
一般に騒音を低減する方策としては、騒音源を遮音壁で
密閉する方法や騒音源の撮動を防止して固体伝播音を減
少させる方法、内壁面に吸音材を貼付けて音の減衰を図
る方法等が知られている。Generally, measures to reduce noise include sealing the noise source with a sound insulating wall, preventing the noise source from being photographed to reduce solid-borne sound, and attaching sound-absorbing material to the inner wall surface to attenuate the sound. It has been known.
しかしながら圧力変動吸着型酸素富化器においては、圧
縮機等の大きな騒音の発生源を有すること、それに付随
した電動機と共にそれを冷却するために必要な冷却１１
１ｆｆｉが比較的大きくその冷部風の開放された流路が
不可欠であること、脱着工程において圧縮された酸素貧
化空気の排出音が発生すること等のために、通常用いら
れる騒音低減の方策では充分な効果をあげることが非常
に困難であった。However, the pressure fluctuation adsorption type oxygen enricher has a large noise generating source such as a compressor, and the cooling 11 required to cool it together with the accompanying electric motor.
Noise reduction measures are commonly used because 1ffi is relatively large and an open flow path for cold air is essential, and exhaust noise of compressed oxygen-depleted air is generated during the desorption process. It was extremely difficult to achieve sufficient results.
例えば騒音源を完全に密閉することは困難であり、その
遮音壁について遮音性を高めるには遮音壁の質量を増加
させる必要があるが、必要以上に壁の肉厚を大きくする
と装置の＠量寸法が増加して好ましくない。又、空気の
流入口・流出口から出る音が壁を透過する音よりも大き
くなれば、装置全体の騒音レベルは冷却用空気流路から
出る音が律速になるため、遮音の効果が出ない。For example, it is difficult to completely seal off the noise source, and in order to improve the sound insulation properties of the sound insulation wall, it is necessary to increase the mass of the sound insulation wall, but if the wall thickness is increased more than necessary, the dimensions of the equipment will increase. Increased and undesirable. Additionally, if the sound coming from the air inlet and outlet becomes louder than the sound that passes through the walls, the noise level of the entire device will be determined by the sound coming from the cooling air flow path, and the sound insulation will not be effective. .
又、空気流路の内壁に吸音材を貼りつけることについて
も、流路の断面積を絞りすぎて、流動抵抗が増加し過ぎ
ると、流れる空気量が減少して、ポンプの冷却不足等の
不都合を生じることがある。Also, when attaching sound absorbing material to the inner wall of the air flow path, if the cross-sectional area of the flow path is narrowed too much and the flow resistance increases too much, the amount of air flowing will decrease, causing problems such as insufficient cooling of the pump. may occur.
そのため特に圧力変動吸着式酸素富化器では所定の酸素
富化性能を維持しつつ、かつ寸法を増大させないで充分
なＪｉ！音対策をとることが非常に困難であった。Therefore, especially in pressure fluctuation adsorption type oxygen enrichers, sufficient Ji! It was extremely difficult to take measures against noise.
［発明の目的］
本発明の目的は上記の従来技術の欠点を是正し、従来の
酸素富化器と比べ寸法をほとんど増加させることなく、
又、富化器の機能を減じることな〈従来より騒音の小さ
い圧力変動吸着型酸素富化器を提供することにある。[Object of the Invention] The object of the present invention is to rectify the above-mentioned drawbacks of the prior art, and to provide an oxygen enricher with almost no increase in size compared to conventional oxygen enrichers.
Another object of the present invention is to provide a pressure fluctuation adsorption type oxygen enricher that is less noisy than the conventional one without reducing the function of the enricher.
［発明の構成］
本発明者は、かかる目的を達成すべく鋭意研究を行なっ
た結果、圧力変動吸着型酸素富化器に必要とされる圧縮
空気供給手段とその駆動用電動機。[Structure of the Invention] As a result of intensive research to achieve the above object, the present inventor has developed a compressed air supply means and a driving electric motor thereof required for a pressure fluctuation adsorption type oxygen enricher.
これらを冷却するためのファン手段、及び吸着脱着の圧
力変動をコントロールするための電磁式弁を防音ボック
ス内に収納し、その前後に設けられる大気流入通路と大
気流出通路の屈曲回数を特定の壕囲内とすることが騒音
対策上非常に有効であることを見い出し、本発明に到達
した。A fan means for cooling these and an electromagnetic valve for controlling pressure fluctuations during adsorption and desorption are housed in a soundproof box, and the number of bends of the air inflow passage and air outflow passage provided before and after the fan means is housed in a specific trench. It has been discovered that placing it within a surrounding area is very effective in terms of noise countermeasures, and the present invention has been achieved.
即ち本発明は、吸着床、該吸着床に圧縮空気を供給する
ための電ｉｌｌ□の動力により駆動される圧縮空気供給
手段、及びファン手段を具備した圧力変動吸着型酸素富
化器において、該富化器の外殻を形成する面に設けられ
た大気取入口及び大気排出口と、該電動機、該圧縮空気
供給手段、ファン手段及び該圧縮空気供給手段と該吸着
床を連結した導管手段に設けられた自動弁手段を収納す
る室構造であって該室構造を形成する防音壁面に設けら
れた該室構造への大気流入開口部及び該室構造からの大
気流出開口部を有した防音ボックスと、該大気取入口か
ら該大気流入開口部への大気の流れを拘束する大気流入
通路と、該大気流出開口部から該大気排出口への大気の
流れを拘束する大気排出通路とを有し、該大気流入通路
と該大気流出通路の各々が４回以上の屈曲回数を有し且
つ少なくともその屈曲部の内面に吸音材が設けられてい
ることを特徴とする酸素富化器を提供するものである。That is, the present invention provides a pressure fluctuation adsorption type oxygen enricher equipped with an adsorption bed, a compressed air supply means driven by the power of an electric illumination for supplying compressed air to the adsorption bed, and a fan means. An air intake inlet and an air outlet provided on a surface forming the outer shell of the enricher, the electric motor, the compressed air supply means, the fan means, and the conduit means connecting the compressed air supply means and the adsorption bed. A soundproof box having an air inflow opening to the chamber structure and an air outflow opening from the chamber structure, which are provided in a soundproof wall surface forming the chamber structure, and which are provided in a soundproof wall surface that houses an automatic valve means provided in the chamber structure. an air inlet passageway that restricts the flow of air from the air intake port to the air inflow opening; and an air exhaust passageway that restricts the flow of air from the air outflow opening to the air outlet. To provide an oxygen enricher, wherein each of the atmospheric inflow passage and the atmospheric outflow passage has a number of bends of 4 or more times, and a sound absorbing material is provided on the inner surface of at least the bent portion. It is.
以下、本発明についてさらに詳細に説明する。The present invention will be explained in more detail below.
本発明の酸素富化器は、圧力変動吸着型（以下略してＰ
ＳＡ型と記すこともある）のものであって、酸素又は窒
素を選択的に吸着し１ｑる吸着剤を充ｌｌｉした吸着床
に加圧された空気を供給し特定成分を選択的に吸着せし
めた後、吸着床の圧力を低減させて脱着を行なわせるこ
とによって酸素濃度の高められた気体を得る装置である
。該酸素富化器は、吸着床、電動機により駆動される圧
縮空気供給手段、この電動機と圧縮空気供給手段を冷却
するだめの大気の流れを生じさせるファン手段、及び該
吸着床と圧縮空気供給手段を速結して吸着床に圧縮空気
を流入せしめるための導管手段とそれに具備されて吸着
・脱着の圧力変動をコントロールする自動弁手段を主要
な構成要素とするものである。The oxygen enricher of the present invention is a pressure fluctuation adsorption type (hereinafter abbreviated as P
(sometimes referred to as SA type), which selectively adsorbs specific components by supplying pressurized air to an adsorption bed filled with 1 q of adsorbent that selectively adsorbs oxygen or nitrogen. After this, the pressure of the adsorption bed is reduced to allow desorption to occur, thereby obtaining a gas with increased oxygen concentration. The oxygen enricher comprises an adsorption bed, a compressed air supply means driven by an electric motor, a fan means for producing a flow of atmospheric air to cool the electric motor and the compressed air supply means, and the adsorption bed and compressed air supply means. The main components are a conduit means for quickly connecting compressed air and flowing compressed air into the adsorption bed, and an automatic valve means equipped therein for controlling pressure fluctuations during adsorption and desorption.
ここで吸着床は１個又は２個以上のいずれであってもよ
いが、医療用の小型の酸素富化器の場合には３個以下が
好ましく、特に１又は２個の場合が望ましい。また圧縮
空気供給手段としては通常圧縮器が用いられるが、場合
によってはブロアー形式のものであってもよい。またフ
ァン手段としては、通常圧縮手段自体に取付けられたフ
ァンの他にさらに別のファン手段を用いる方が圧縮手段
等の冷却が確実に行ない得るので好ましい。さらに該自
動弁手段としては、吸着床の吸ＩＩｉ着サイクルをコン
トロールするためのものであって、三方式。Here, the number of adsorption beds may be one or two or more, but in the case of a small-sized oxygen enricher for medical use, the number of adsorption beds is preferably three or less, and one or two is particularly desirable. Further, a compressor is usually used as the compressed air supply means, but a blower type may be used depending on the case. Further, as the fan means, it is preferable to use another fan means in addition to the fan normally attached to the compression means itself, since the compression means etc. can be reliably cooled. Further, the automatic valve means is for controlling the adsorption IIi adsorption cycle of the adsorption bed, and there are three types.
三方式あるいは四方式等のものが用いられる。かかる自
動弁手段は直流励磁型電磁弁、交流励磁式電磁弁、空気
作動式自動弁、パイロット作動型電磁弁等が好ましく、
中でも直流励磁型電磁弁、空気作動式自動弁、及びパイ
ロット作動型電磁弁等が鉄芯等の動きがゆるやかでライ
フが長く且つ作動時の発生音が小さく低騒音化の対策１
更に好ましく、特に直流励磁型電磁弁が実用的である。Three or four methods are used. The automatic valve means is preferably a DC excited solenoid valve, an AC excited solenoid valve, an air operated automatic valve, a pilot operated solenoid valve, etc.
Among them, DC-excited solenoid valves, air-operated automatic valves, pilot-operated solenoid valves, etc. have long lifespans due to the gentle movement of their iron cores, and they generate less noise during operation.1.
More preferred is a DC-excited solenoid valve, which is particularly practical.
本発明の酸素富化器の特徴の１つは、該電ｆｈ機と圧縮
空気供給手段、該ファン手段及び該電磁式弁手段を防音
ボックス内に収納ｕしめたことである。該防音ボックス
は電動１５１等を冷却するための大気流れの流入開口部
と流出開口部を除いて実質上密閉構造になっている。尚
吸着床へ圧縮空気を供給するための導管手段、吸着床か
ら加圧された酸素貧化空気を放出するための導管手段等
が該防音ボックスの壁を貫通けしめる場合には該導管手
段の外面と壁部を充分苫着させてその間を大気が出入し
ないようにすることが望ましい。かかる防音ボックス内
には、さらに該圧縮空気供給手段の吸気側に連結された
大気吸入用導管手段の開放端部及び／又は該吸着床から
の酸素貧化空気の排出用導管手段の開放端部には繊維集
合体や発泡体等の防音材やその他の消音手段を備えるこ
とが望ましい。また該防音ボックスは、小型化を図るた
めに薄くて面密度の大きな金属板を用いたものが好まし
く、さらにその内側の面に吸音材を具備せしめ、場合に
よっては該酸素富化器の前面に相当する該防音ボックス
の面、大気流通開口部を備えた面等に板状の制振材を吸
音材と金属板の間に挿入Ｖしめることが望ましい。該防
音ボックスの壁部の具体例としては、最外殻が０．５〜
１，５ｍの厚さの鉄板等の金属製板からなるものであり
、大気流通開口部を備えた面の内側に０．５〜１．５Ｍ
の厚さの制振材を取り付け、さらにそのボックスの壁部
全面にわたって５〜３０調の厚さの吸音材を備えたしの
が挙げられる。One of the features of the oxygen enricher of the present invention is that the electric fh machine, compressed air supply means, fan means, and electromagnetic valve means are housed in a soundproof box. The soundproof box has a substantially sealed structure except for an inflow opening and an outflow opening for air flow for cooling the electric motor 151 and the like. In addition, when the conduit means for supplying compressed air to the adsorption bed, the conduit means for discharging pressurized oxygen-depleted air from the adsorption bed, etc. penetrate the wall of the soundproof box, the conduit means It is desirable to have sufficient adhesion between the outer surface and the wall to prevent air from entering or exiting between them. In such a soundproof box, there is further provided an open end of a conduit means for inhaling atmospheric air and/or an open end of a conduit means for discharging oxygen-depleted air from the adsorption bed, connected to the suction side of the compressed air supply means. It is desirable to provide soundproofing materials such as fiber aggregates or foams or other sound-deadening means. In addition, in order to reduce the size of the soundproof box, it is preferable to use a thin metal plate with a high surface density, and furthermore, the inner surface is provided with a sound absorbing material, and in some cases, the front surface of the oxygen enricher is provided with a sound absorbing material. It is desirable to insert a plate-shaped damping material between the sound absorbing material and the metal plate on the corresponding surface of the soundproof box, the surface provided with the air circulation opening, etc. As a specific example of the wall of the soundproof box, the outermost shell is 0.5~
It consists of a metal plate such as an iron plate with a thickness of 1.5 m, and a 0.5 to 1.5 m
An example is a box in which a damping material with a thickness of 100 mm is attached, and a sound absorbing material with a thickness of 5 to 30 mm is provided over the entire wall of the box.
本発明の酸素富化器は、大気取入口から該防音ボックス
の大気流入開口部に敗る大気流入通路と、該防音ボック
スの人気流出開口部から大気排出口に敗る大気流出通路
の各々が４回以上の屈曲回数を（１し、それらの大気通
路の内側の少なくとも屈曲部に吸音材を備えたことを特
徴としている。かかる大気通路の屈曲部は、主に横方向
と縦方向に伸びた面で該富化器内の空間が区切られた状
態の場合には、実質上９０度に近い角度をなすものであ
るが、消音効果が得られればそれ以外の角度であっても
よい。また該屈曲の回数としては、５回以上であればさ
らに消音効果が大きく、特に７回以上が好ましい。尚大
気排出口のすぐ近くで屈曲排出される場合には騒音低下
効果が小さく無視して考えるのがよい。The oxygen enricher of the present invention has an air inflow passage leading from the air intake to the air inflow opening of the soundproof box, and an air outflow passage leading from the air outflow opening of the soundproof box to the air outlet, respectively. It is characterized by having a number of bends of 4 or more (1) and having a sound absorbing material at least at the bent portions inside the atmospheric passages.The bent portions of the atmospheric passages mainly extend in the horizontal and vertical directions. When the space inside the enricher is divided by a plane, the angle is substantially close to 90 degrees, but other angles may be used as long as a sound silencing effect is obtained. In addition, if the number of bends is 5 or more, the noise reduction effect will be even greater, and 7 or more is particularly preferable.In addition, if the air is bent and discharged very close to the air outlet, the noise reduction effect is small and can be ignored. It's good to think about it.
またかかる大気流入通路、大気流出通路の各々の長さは
共に、該富化器の外殻寸法の最小値以上、さらに好まし
くはその１．５倍以上であることが低騒音化にイ１効で
ある。さらに該人気流出通路の良さが大気流入通路長の
０．４〜２．０倍の範囲、史に好ましくは０．５〜１．
５倍の範囲にあることが望ましい。この範囲に含まれな
い構造では、各々の通路における騒音の減衰が不充分で
あったり、流出側両方のバランスがとれずどちらか一方
の騒音が残ってしまうことになりやすい。Furthermore, it is effective for noise reduction that the lengths of both the atmospheric inflow passage and the atmospheric outflow passage are at least the minimum value of the outer shell dimensions of the enricher, and more preferably at least 1.5 times the minimum value. It is. Furthermore, the length of the popular outflow passage is in the range of 0.4 to 2.0 times the length of the air inflow passage, preferably 0.5 to 1.
A range of 5 times is desirable. In a structure that does not fall within this range, the attenuation of noise in each passage may be insufficient, or the balance between the two outflow sides may not be maintained, and noise from one side tends to remain.
一般に気体の通過距離を長くすればする程、その長さに
応じて騒音の減衰効果が大きくなるが、該富化器の如く
種々の周波数が混在する騒音では余程注意して通路長を
選定しないと、共鳴により逆に騒音が増幅される可能性
もある。しかしながら、本発明では、上記の如く該通路
が５回以上の屈曲回数を有し、特定の長さを有する場合
には、共鳴を抑制しうると同時に種々の周波数の騒音を
出口、入口共々にほぼ均等に低減しうる事を見い出した
ものである。さらに該通路の少なくとも屈曲部には吸音
材を設置することにより消音効果を高められ、特に通路
の内面全体に吸音材を設けるとざらに騒音低下が可能で
ある。但し吸音材を厚くし過ぎるとそこを通過する大気
の流！！ＩＩＪ抵抗が大きくなり同時に風切り音が発生
するなどして好ましくない。それ故大気の流入通路及び
流出通路における該通路の断面積基準の大気流れの平均
流速が約１０ＴｒＬ／ＳｅＣ以下が好ましく、更には約
７′ｒｒＬ／ｓｅｃ以下が好ましい。In general, the longer the distance the gas passes, the greater the noise attenuation effect will be. Otherwise, the noise may be amplified due to resonance. However, in the present invention, when the passage has five or more bends and has a specific length as described above, resonance can be suppressed and at the same time noise of various frequencies can be suppressed at both the exit and entrance. It has been found that the amount can be reduced almost equally. Further, by providing a sound absorbing material at least at the bent portion of the passage, the sound damping effect can be enhanced, and in particular, if the sound absorbing material is provided on the entire inner surface of the passage, the noise can be significantly reduced. However, if the sound-absorbing material is too thick, air will pass through it! ! This is undesirable because the IIJ resistance increases and at the same time wind noise is generated. Therefore, it is preferable that the average flow rate of the atmospheric air flow in the atmospheric inflow passage and the atmospheric outflow passage based on the cross-sectional area of the passage is about 10 TrL/SeC or less, and more preferably about 7'rrL/sec or less.
本発明の酸素富化器は、その外股ボックスが防音用素材
からなる筐体で構成されるが、その材料としては木製が
好ましい。かかる筐体は大気の流入出口及び酸素富化空
気の流出口を除いては密閉構造が望ましく、少なくとも
音源に接する個所は、遮音壁の厚さを充分にとり、内側
に吸音材を貼付する。密閉化の具体的手段としては、ア
リ満による接続や、パネル面でのグリル加工が有効であ
り、さらにパネル部分を二重構造にすることが好ましい
。該木製筐体は、防音上厚さ１０ ｍｍ以上であり、ま
た軽量化のためには１０〜２０Ｍの厚さが好ましく、騒
音が直接当りにくい部分についてその内部をルータ−扱
き加工することも有効である。尚前記の防音ボックスを
収納せしめるのに、木製の室構造を形成しその内側に少
し空間を設けた状態で該防音ボックスをセットすると、
騒音の伝播が少なくなるので好ましい。また該富化空気
を使用に供する際に過剰の富化空気を排出する機能を備
えた流量副面手段を用いることがあるが、かかる富化空
気排出の際における騒音発生を防止するために排出管を
例えば１０ＣｒＲ以上に長くしたり、消音タンクを設け
たり、あるいは屈曲部を設けたりして消音礪能部を備え
ることが望ましい。In the oxygen enricher of the present invention, the outer box is composed of a housing made of a soundproofing material, and wood is preferably used as the material. It is preferable that such a housing has a sealed structure except for the inlet and outlet for the atmosphere and the outlet for oxygen-enriched air, and at least in the area that comes into contact with the sound source, the thickness of the sound insulating wall is sufficient and a sound absorbing material is attached to the inside. As a specific means for sealing, it is effective to connect with a dowel or grill processing on the panel surface, and it is preferable that the panel part has a double structure. The wooden casing should have a thickness of 10 mm or more for soundproofing purposes, and preferably a thickness of 10 to 20 mm for weight reduction.It is also effective to process the inside of the casing with a router in areas that are difficult to be directly exposed to noise. It is. In order to store the above-mentioned soundproof box, if a wooden chamber structure is formed and the soundproof box is set with a small space inside the structure,
This is preferable because it reduces noise propagation. In addition, when the enriched air is put to use, a flow rate secondary means having a function of discharging excess enriched air may be used, but in order to prevent noise generation when discharging the enriched air, It is desirable to provide a sound deadening section by making the pipe long, for example, 10 CrR or more, by providing a sound deadening tank, or by providing a bent part.
本発明について図を用いてさらに具体的に示す。The present invention will be explained more specifically using figures.
第１図は第２．３図に示す本発明の１実施態様である吸
着床１個を用いた圧力変動吸着型の酸素富化器の主なる
構成素要とその連結状態を模式的に例示したものである
。即ち原料空気Ａがソレノイド式４方切換弁４の流路２
１を通り圧縮機３により圧縮された後、切換弁４の流路
２２を通り吸着床１に供給される。この吸着床１で窒素
が吸着されてＭ素１度が例えば９０体積％以上の酸素富
化気体が電磁弁５を通り貯留タンク２に流入する。さら
に貯留タンクから減圧弁７，８を経て除菌フィルター９
を通り′Ａ型調節器１１を経た後、酸素富化気体として
使用に供される。また吸着床１を脱着する工程では、電
磁弁５を閉じて、切換弁４を切り換えて、吸着床１の中
の酸素貧化気体等を流路２３を通して圧縮機を減圧手段
として用いて切換弁４の流路２４から８として放出づる
。この様に切換弁４と電磁弁５を調節することによって
圧力変動型吸着分離を行なうものである。尚圧縮機及び
それに付随した電導閤をファン１４による大気流れ（第
３図でＤ→［→「→Ｇとしてその流路を示す）で冷ＩＪ
′Ｉする。またＣなる酸素富化気体は、通常は水中バブ
リング方式の加湿器を通して加湿された後、弁カニュラ
等により使用者の８腔等に供給される。Figure 1 schematically illustrates the main components and their connection state of a pressure fluctuation adsorption type oxygen enricher using one adsorption bed, which is one embodiment of the present invention shown in Figure 2.3. This is what I did. That is, the raw air A flows through the flow path 2 of the solenoid type four-way switching valve 4.
1 and is compressed by the compressor 3 , and then passed through the flow path 22 of the switching valve 4 and supplied to the adsorption bed 1 . Nitrogen is adsorbed in the adsorption bed 1, and an oxygen-enriched gas containing, for example, 90% by volume or more of M atoms flows into the storage tank 2 through the electromagnetic valve 5. Furthermore, the sterilization filter 9 is passed from the storage tank through pressure reducing valves 7 and 8.
After passing through the A-type regulator 11, it is used as an oxygen-enriched gas. In addition, in the step of desorbing the adsorption bed 1, the solenoid valve 5 is closed, the switching valve 4 is switched, and the oxygen-depleted gas etc. in the adsorption bed 1 is passed through the flow path 23 using the compressor as a pressure reducing means. It is discharged as 8 from the flow path 24 of 4. By adjusting the switching valve 4 and the solenoid valve 5 in this manner, pressure fluctuation type adsorption separation is performed. The compressor and its attached conductor are connected to a cold IJ by air flow (the flow path is shown as D→[→"→G in Fig. 3) by the fan 14.
'I will. The oxygen-enriched gas C is usually humidified through an underwater bubbling type humidifier, and then supplied to the user's eight cavities through a valve cannula or the like.
第２図及び第３図は、本発明の酸素富化器の１実施態様
例を示したものである。即ち第１図に示した構成要素を
組み込んだ状態を示したのが第２図であり、その大気流
路を概略的に示したのが第３図である。即ち第２図は、
酸素富化器の外股ボックス３０の中に、電導機と一体化
した圧縮ぼ３゜ファン１４．４方切換弁４．大気吸入用
導管の間敢喘に付したフィルター兼消音橢能部祠１５．
及び酸素凸化空気排出用導管の聞敢喘に（・１した消呂
凶能部材１Ｇを収納した防音ボックス３１と、吸着床１
と貯留タンク２を収納した吸着床ボックス３２、及び運
転操作パネル面の裏側に位１ｆｆｆ Ｉ、、′市別計装
機器類を収納した計器室３３等を内蔵した状態を示した
ものである。尚電磁弁５等の電［餞弁手段を金、属ヴツ
の吸着床や貯留タンクに連結した導管手段に備える場合
には、プラスチック製の導管手段を介して該吸着床及び
／又は貯留タンクに位置することにより、該電磁弁手段
の作ｖＪ音が吸着床等に伝播しにくくすることが望まし
い。また上記開放端部１５及び１６を連結せしめて１つ
の１７１ｆｆ放端とし、それにフィルター兼消音機能部
材を取付けることによって、該フィルター機能が運転と
共に逆洗もされるので目詰まりしにくい利点が得られる
。尚、防音ボックス３１内において、ファン１４の下に
開口部付仕切板を設けてその仕切板にファン１４を取り
付けるのが良い。FIGS. 2 and 3 show one embodiment of the oxygen enricher of the present invention. That is, FIG. 2 shows a state in which the components shown in FIG. 1 are assembled, and FIG. 3 schematically shows the atmospheric flow path. In other words, Figure 2 is
In the outer box 30 of the oxygen enricher, there is a compressor 3° fan 14.4-way switching valve integrated with a conductor. 15. A filter and sound deadening function installed between the air intake conduits.15.
and a soundproof box 31 containing 1G of the quenching material 1G and an adsorption bed 1.
This figure shows the built-in adsorption bed box 32 that houses the storage tank 2, and the control room 33 that houses the city-specific instrumentation equipment on the back side of the operation panel. In addition, when an electric valve means such as a solenoid valve 5 is provided in a conduit means connected to an adsorption bed or storage tank made of metal or metal, it is connected to the adsorption bed and/or storage tank through a conduit means made of plastic. It is desirable to make it difficult for the operating noise of the solenoid valve means to propagate to the adsorption bed or the like by locating the solenoid valve means. In addition, by connecting the open ends 15 and 16 to form one 171ff open end and attaching a filter-cum-silencing function member to it, the filter function is also backwashed during operation, which has the advantage of being less likely to become clogged. . It is preferable that a partition plate with an opening is provided below the fan 14 in the soundproof box 31 and the fan 14 is attached to the partition plate.
また流岱調節器１１を経た酸素富化気体を室構造４５内
に収納された加湿器（第２図には記載なし）に通すとに
よって加湿された後使用に供される。Further, the oxygen-enriched gas that has passed through the flow regulator 11 is passed through a humidifier (not shown in FIG. 2) housed in the chamber structure 45 to be humidified before use.
かかる加湿器はワンタッチ形式で該富化気体流入導管手
段と連結したものが操作性がよく、また該Ｖ構造は透明
性のプラスチック板で密閉化することによって防音構造
にすることが望ましい。Such a humidifier is easy to operate if it is connected to the enriched gas inflow conduit means in a one-touch manner, and it is preferable that the V structure is made into a soundproof structure by being sealed with a transparent plastic plate.
第３図は、該酸素富化器における大気の流路を１点鎖線
で示したものである。即ち、大気りがフィルタ一手段を
備えた大気取入口３４がら流入し、仕切板４０を備えた
苗構造のために■→■→■→■と屈曲した大気流入通路
を流れ、開口部３５を通り、仕切板４１のまわりを■→
■→■→■と屈曲した通路を流れ、さらに吸着床ボック
ス３２内を経て■→・［株］なる屈曲通路を流れ、防音
ボックスの大気流入開口部３６から防音ボックスへＥと
して流入する。FIG. 3 shows the atmospheric flow path in the oxygen enricher with a dashed line. That is, atmospheric air flows through the air intake port 34 equipped with a filter, flows through the air inlet passage which is bent in the direction of ■→■→■→■ due to the seedling structure equipped with the partition plate 40, and passes through the opening 35. On the street, around the partition plate 41■→
It flows through a curved passage as ■→■→■, passes through the adsorption bed box 32, flows through a curved passage marked ■→·[shares], and flows into the soundproof box as E from the air inflow opening 36 of the soundproof box.
その後大気は防音ボックス内の圧縮機等を冷却しながら
通過し、Ｆとして大気流出開口部３１がら出て、開口部
３８及び仕切板４２．４３によって、■→■→■→■→
■と屈曲した大気流出通路を通過し、大気排出口３９か
らＧとして器外に放出される。尚放出部においで、例え
ば１方の面を除いた短い直線状ダクトであって内側に吸
音材を取付けた部材等を設けることによって排風音の多
少の減少を図ることもできる。Thereafter, the air passes through the compressor etc. inside the soundproof box while being cooled, and exits from the air outflow opening 31 as F, and is separated by the opening 38 and the partition plate 42.43.
It passes through the air outflow passage bent as shown in (3) and is discharged outside the device as G from the air outlet 39. It is also possible to reduce the exhaust noise to some extent by providing a member, for example, a short linear duct except for one side, with a sound-absorbing material attached inside the discharge part, for example.
以下実施例によりさらに詳細に説明する。The present invention will be explained in more detail with reference to Examples below.
実施例１〜３及び比較例１
第１図〜第３図に示す如き酸素富化器において、大気流
出通路における仕切板（４２，４３＞の設置位置及び枚
数を変えることによって、第１表に示したように大気流
出通路の屈曲回数及び大気流入通路長と大気流出通路長
の比を変えたしのを４種類組み立てた。尚これらの酸素
富化器における大気流入通路の屈曲回数は１０回である
。また流量調節器１１として余剰の酸素富化空気を排出
しないタイプであって内径の異なるオリフィスを複数個
有した流量設定器を用いた。尚圧縮量手段としてはＩＩ
復動式コンプレッサーを用い、ファン手段としてはシロ
ッコ式ファンを用いた。またこれらの酸素富化器は大気
の流入通路及び流出通路における通路断面積基準の大気
の平均流速が約６ ｍ ／ ｓｅｃ以下となるように吸
音材の厚みを調節した。Examples 1 to 3 and Comparative Example 1 In the oxygen enricher as shown in Figs. 1 to 3, by changing the installation position and number of partition plates (42, 43> in the atmospheric outflow passage), the results shown in Table 1 were obtained. As shown, four types of oxygen enrichers were assembled in which the number of bends of the atmosphere outflow passage and the ratio of the air inflow passage length to the atmosphere outflow passage length were changed.The number of bends of the air inflow passage in these oxygen enrichers was 10. In addition, as the flow rate regulator 11, a flow rate setting device of a type that does not discharge excess oxygen-enriched air and having a plurality of orifices with different inner diameters was used.As the compression amount means, II
A double-acting compressor was used, and a sirocco fan was used as the fan means. In addition, in these oxygen enrichers, the thickness of the sound absorbing material was adjusted so that the average flow velocity of the atmosphere based on the cross-sectional area of the air inlet and outlet passages was about 6 m/sec or less.
かかる４種類の酸素富化器の各々を用いて、定常運転時
における発生騒音を測定した。その騒音の測定法として
は、一般の洋室においてその酸素富化器を数時間運転し
た後にその前面から離れた所で床上４０ ｃｍの高さに
おける騒音の測定を行なった。Using each of these four types of oxygen enrichers, the noise generated during steady operation was measured. The noise was measured by operating the oxygen enricher for several hours in an ordinary Western-style room, and then measuring the noise at a height of 40 cm above the floor, away from the front of the oxygen enricher.
尚、酸素富化器の運転は５０Ｈｚと６０１−１ｚの交流
電源を用いて行ない、Ｉ！！合計としては、リオン製の
装置を用いた。また使用した洋間の測定時における平均
暗騒音は２４ｄＢ（Ａ＞であった。１ｑられた測定結果
を合わせて第１表に示す。また実施例１で用いた酸素富
化器の騒音を無音室で５０１−１ｚで運転して測定した
所、３２ｄＢ（Ａ）なる値が得られた。The oxygen enricher was operated using AC power sources of 50 Hz and 601-1 Hz, and I! ! For the total, a device manufactured by Rion was used. In addition, the average background noise during the measurement of the Western-style room used was 24 dB (A>. 501-1z and measured, a value of 32 dB (A) was obtained.
第１表
比較例２
実施例１と同様の酸素富化器において、大気流出通路に
おける仕切板（第３図仕切板４３）の吸音材厚みを厚く
し、その周囲における大気通路断面積基準の大気の平均
流速の最大値が約１１ＴｒＬ／ ｓｅｃとなるようにし
て、実施例１と同様の騒音テストを行なった所、実施例
１よりもがなり大きな騒音が発生することが認められた
。Table 1 Comparative Example 2 In an oxygen enricher similar to Example 1, the thickness of the sound-absorbing material of the partition plate (partition plate 43 in Figure 3) in the atmosphere outflow passage was made thicker, and the atmosphere around it based on the cross-sectional area of the atmosphere passage was increased. When the same noise test as in Example 1 was conducted with the maximum average flow velocity of approximately 11 TrL/sec, it was found that a louder noise was generated than in Example 1.
［発明の効果１
本発明による圧力変動吸着型酸素富化器は、発生する騒
音が非常に小さく、医療用としても非常に優れた特性を
有している。持に恣者のすぐ近くにおいて、夜間に運転
した場合でも静粛感を保ち得るという優れた利点がある
。又、防音対策によって特に大きさが増大することなく
持ち運びにおいても優れた特徴を有している。[Effect of the Invention 1] The pressure fluctuation adsorption type oxygen enricher according to the present invention generates very little noise and has very excellent characteristics for medical use. It has the excellent advantage of being able to maintain a sense of quietness even when driving at night, especially if it is located very close to the driver. Furthermore, the soundproofing measures do not increase the size, making it easy to carry.
第１〜３図は本発明における酸素富化空気の１実施態様
例を示したちのである。即ち第１図は第２図、第３図に
示す本発明の実施態様例の酸素富化器の主たる構成要素
の連結状態を模式的に示したものである。第２図はその
構成要素を組み込んだ状態を示したものであり、第３図
は該酸素富化器中の大気の流路を示したものである。
特許出願人 帝 人 株 式 会 社代
理 人 弁理士 前 １） 純 博（弗
？ 図Figures 1 to 3 show one embodiment of the oxygen-enriched air according to the present invention. That is, FIG. 1 schematically shows how the main components of the oxygen enricher according to the embodiment of the present invention shown in FIGS. 2 and 3 are connected. FIG. 2 shows the assembled components, and FIG. 3 shows the atmospheric flow path in the oxygen enricher. Patent applicant: Teijin Ltd.
Patent Attorney Former 1) Jun Hiroshi (弗
? figure
Claims (9)
動機の動力により駆動される圧縮空気供給手段、及びフ
ァン手段を具備した圧力変動吸着型酸素富化器において
、該富化器の外殻を形成する面に設けられた大気取入口
及び大気排出口と、該電動機、該圧縮空気供給手段、フ
ァン手段及び該圧縮空気供給手段と該吸着床を連結した
導管手段に設けられた自動弁手段を収納する室構造であ
って該室構造を形成する防音壁面に設けられた該室構造
への大気流入開口部及び該室構造からの大気流出開口部
を有した防音ボックスと、該大気取入口から該大気流入
開口部への大気の流れを拘束する大気流入通路と、該大
気流出開口部から該大気排出口への大気の流れを拘束す
る大気排出通路とを有し、該大気流入通路と該大気流出
通路の各々が４回以上の屈曲回数を有し且つ少なくとも
その屈曲部の内面に吸音材が設けられていることを特徴
とする酸素富化器。(1) In a pressure fluctuation adsorption type oxygen enricher comprising an adsorption bed, a compressed air supply means driven by the power of an electric motor for supplying compressed air to the adsorption bed, and a fan means, the enricher An air inlet and an air outlet provided on the surface forming the outer shell, and an automatic air intake provided in the electric motor, the compressed air supply means, the fan means, and the conduit means connecting the compressed air supply means and the adsorption bed. A soundproof box having a chamber structure for housing a valve means and having an air inflow opening to the chamber structure and an air outflow opening from the chamber structure provided on a soundproof wall surface forming the chamber structure; an air inlet passage that restricts the flow of air from the intake port to the air inlet opening; and an air outlet passage that restricts the flow of air from the air outlet opening to the air outlet; An oxygen enricher characterized in that each of the passage and the atmosphere outflow passage has a number of bends of four or more times, and a sound absorbing material is provided on at least the inner surface of the bend.
入用導管手段の開放端部及び／又は該吸着床からの酸素
貧化空気を排出するための導管手段の開放端部が該防音
ボックス内に設けられた特許請求の範囲第１項記載の酸
素富化器。(2) The open end of the air suction conduit means connected to the intake side of the compressed air supply means and/or the open end of the conduit means for discharging oxygen-depleted air from the adsorption bed is soundproofed. The oxygen enricher according to claim 1, which is provided in a box.
範囲第２項記載の酸素富化器。(3) The oxygen enricher according to claim 2, wherein the open end portion is provided with a noise reduction means.
自動弁、又はパイロット作動型電磁弁である特許請求の
範囲第１項記載の酸素富化器。(4) The oxygen enricher according to claim 1, wherein the automatic valve means is a DC-excited solenoid valve, an air-operated automatic valve, or a pilot-operated solenoid valve.
金属製ボックスであり、該大気流入開口部と該大気流出
開口部以外は実質上密閉化されている特許請求の範囲第
１項記載の酸素富化器。(5) Claim 1, wherein the soundproof box is a metal box equipped with a sound absorbing material on its inner surface, and is substantially sealed except for the air inflow opening and the air outflow opening. Oxygen enricher as described.
の０．４〜２．０倍の範囲にある特許請求の範囲第１項
記載の酸素富化器。(6) The oxygen enricher according to claim 1, wherein the length of the atmosphere outflow passage is within a range of 0.4 to 2.0 times the length of the atmosphere inflow passage.
、該富化器外殻を構成する相対した面の間の距離の最小
値以上である特許請求の範囲第１項記載の酸素富化器。(7) The oxygen according to claim 1, wherein the length of each of the atmospheric inflow passage and the atmospheric outflow passage is greater than or equal to the minimum distance between opposing surfaces constituting the outer shell of the enricher. Enricher.
の出入口部以外が実質上密閉化された構造を有する特許
請求の範囲第１項記載の酸素富化器。(8) The oxygen enricher according to claim 1, wherein each of the atmosphere inflow passage and the atmosphere outflow passage has a substantially sealed structure except for the entrance and exit portion of the atmosphere.
れの該通路の断面積基準の平均流速が約１０ｍ／ｓｅｃ
以下である特許請求の範囲第１項記載の酸素富化器。(9) The average flow velocity of the atmospheric flow in the atmospheric inflow passage and the atmospheric outflow passage is approximately 10 m/sec based on the cross-sectional area of the passage.
An oxygen enricher according to claim 1, which is as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60277816A JPS62140619A (en) | 1985-12-12 | 1985-12-12 | Oxygen enricher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60277816A JPS62140619A (en) | 1985-12-12 | 1985-12-12 | Oxygen enricher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62140619A true JPS62140619A (en) | 1987-06-24 |
| JPH044007B2 JPH044007B2 (en) | 1992-01-27 |
Family
ID=17588663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60277816A Granted JPS62140619A (en) | 1985-12-12 | 1985-12-12 | Oxygen enricher |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62140619A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01147821U (en) * | 1988-03-31 | 1989-10-12 | ||
| JPH02149721U (en) * | 1989-05-18 | 1990-12-21 | ||
| JPH08119606A (en) * | 1994-10-24 | 1996-05-14 | Masayuki Imai | Oxygen concentrator |
| FR2800629A1 (en) * | 1999-11-10 | 2001-05-11 | Air Liquide | AIR SEPARATION SYSTEM PROVIDED WITH NOISE MITIGATION MEANS |
| WO2005028059A2 (en) | 2003-09-02 | 2005-03-31 | Airsep Corporation | Sound enclosure for portable oxygen concentrators |
| JP2006062932A (en) * | 2004-08-30 | 2006-03-09 | Ngk Spark Plug Co Ltd | Oxygen concentrator |
| CN100415317C (en) * | 2002-03-05 | 2008-09-03 | 帝人株式会社 | Oxygen enricher |
| JP2008229493A (en) * | 2007-03-20 | 2008-10-02 | Teijin Pharma Ltd | Pressure swing adsorption type oxygen concentrator |
| JP2008239427A (en) * | 2007-03-28 | 2008-10-09 | Terumo Corp | Oxygen enricher |
| US7491264B2 (en) | 2004-02-16 | 2009-02-17 | Teijin Pharma Limited | Oxygen concentrating apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60200804A (en) * | 1984-03-23 | 1985-10-11 | Teijin Ltd | Oxygen enriching device |
-
1985
- 1985-12-12 JP JP60277816A patent/JPS62140619A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60200804A (en) * | 1984-03-23 | 1985-10-11 | Teijin Ltd | Oxygen enriching device |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01147821U (en) * | 1988-03-31 | 1989-10-12 | ||
| JPH02149721U (en) * | 1989-05-18 | 1990-12-21 | ||
| JPH08119606A (en) * | 1994-10-24 | 1996-05-14 | Masayuki Imai | Oxygen concentrator |
| FR2800629A1 (en) * | 1999-11-10 | 2001-05-11 | Air Liquide | AIR SEPARATION SYSTEM PROVIDED WITH NOISE MITIGATION MEANS |
| EP1099463A1 (en) * | 1999-11-10 | 2001-05-16 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Air treatment plant with sound suppressing means |
| US6451097B1 (en) | 1999-11-10 | 2002-09-17 | L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Air treatment plant provided with noise attenuation means |
| CN100415317C (en) * | 2002-03-05 | 2008-09-03 | 帝人株式会社 | Oxygen enricher |
| EP1663433A2 (en) * | 2003-09-02 | 2006-06-07 | Airsep Corporation | Sound enclosure for portable oxygen concentrators |
| JP2007503950A (en) * | 2003-09-02 | 2007-03-01 | エアーセップ・コーポレーション | Sound container for portable oxygen concentrator |
| EP1663433A4 (en) * | 2003-09-02 | 2008-05-21 | Airsep Corp | Sound enclosure for portable oxygen concentrators |
| WO2005028059A2 (en) | 2003-09-02 | 2005-03-31 | Airsep Corporation | Sound enclosure for portable oxygen concentrators |
| JP4796492B2 (en) * | 2003-09-02 | 2011-10-19 | エアーセップ・コーポレーション | Sound container for portable oxygen concentrator |
| US7491264B2 (en) | 2004-02-16 | 2009-02-17 | Teijin Pharma Limited | Oxygen concentrating apparatus |
| JP2006062932A (en) * | 2004-08-30 | 2006-03-09 | Ngk Spark Plug Co Ltd | Oxygen concentrator |
| JP2008229493A (en) * | 2007-03-20 | 2008-10-02 | Teijin Pharma Ltd | Pressure swing adsorption type oxygen concentrator |
| JP2008239427A (en) * | 2007-03-28 | 2008-10-09 | Terumo Corp | Oxygen enricher |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH044007B2 (en) | 1992-01-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |