JPH03324B2 - - Google Patents
Info
- Publication number
- JPH03324B2 JPH03324B2 JP59274654A JP27465484A JPH03324B2 JP H03324 B2 JPH03324 B2 JP H03324B2 JP 59274654 A JP59274654 A JP 59274654A JP 27465484 A JP27465484 A JP 27465484A JP H03324 B2 JPH03324 B2 JP H03324B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- enricher
- oxygen
- 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.)
- Expired - Lifetime
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 53
- 239000001301 oxygen Substances 0.000 claims description 53
- 229910052760 oxygen Inorganic materials 0.000 claims description 53
- 239000011358 absorbing material Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims 1
- 239000012528 membrane Substances 0.000 description 11
- 238000001816 cooling Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Separation Of Gases By Adsorption (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Description
［技術分野］
本発明は、大気から酸素濃度の高められた空気
を安定して得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酸素富化器
に関する。さらに詳細には、本発明は医療用酸素
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。
［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つている。
酸素富化器には膜型（真空ポンプ使用）と吸着
型（加圧ポンプ使用）の２種類があるが、ポンプ
の違いにより、膜型の方が騒音のレベルが低く、
家庭用に適している。しかし従来の酸素富化器で
は騒音の対策が不充分なため、未だ充分低騒音レ
ベルに到達していない。
騒音を低減する方策としては、一般に騒音源を
遮音壁で密閉する方法や騒音源の振動を防止して
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。
従来の酸素富化器においても、上記の騒音対策
が取入れられているが充分な効果をあげるに至つ
ていない。例えば騒音源を密閉する遮音壁につい
ては、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
すると装置の重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。
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、流路抵
抗を増やし過ぎると、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。そのため従来の酸素富化器では酸素富化器の
性能を維持しつつ、かつ重量寸法を増大させない
で充分な騒音対策をとることが困難であつた。
［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重量・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
ることなく従来より騒音の小さい酸素富化器を提
供することにある。
［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
を行なつた結果、酸素富化器に必要とされるポン
プ手段駆動用電動機及びこれを冷却するためのフ
アン手段の両方を防音ボツクス内に収納し、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。
即ち本発明は、電動機の動力により駆動される
ポンプ手段及びフアン手段を使用して大気より酸
素富化空気を得る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、該富化器に内蔵された該電動機、
ポンプ手段及びフアン手段を収納する室構造であ
つ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ツクスと、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
気流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５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である。
以下、本発明について図面を用いてさらに詳細
に説明する。本発明における酸素富化器は、大気
より酸素濃度の高められた空気を得るものである
が、その酸素濃度を高める手段としては膜分離手
段、吸着分離のいずれか、又は両者を併用しても
よい。また該酸素富化器は、電動機により駆動さ
れるポンプ手段、即ち真空ポンプ、圧縮機等を少
なくとも１個内蔵し、さらにかかる電動機等を冷
却すること等のためにフアン手段を少なくとも１
個内蔵している。本発明の目的である低騒音型で
且つ低重量型の酸素富化器を得るためには、真空
ポンプとフアンを各々１個内蔵したものが好まし
く、特に膜型酸素富化器が低騒音化に適してい
る。
膜型酸素富化器においては、酸素選択透過性膜
の表面に大気を流し、裏側を低圧に保つことによ
つて、低圧側に酸素富化空気が得られる。かかる
低圧に保つ手段として電動機により駆動される真
空ポンプ手段が用いられ、且つ膜表面に大気の流
れを形成させると共に該電動器を冷却するために
フアン手段が用いられる。
本発明の膜型酸素富化器の構成要素の例につい
て簡単に述べると、該膜を具備した膜エレメント
の配列で濃縮された酸素富化空気は真空計を備え
た導管手段を通り、真空ポンプを通過し、水分保
持機能部を備えた冷却手段、水分離手段、加圧手
段、再熱管等を経た後、流量調節手段、流量計を
通り、さらに吸着剤等を備えた浄化手段や除菌フ
イルター等を経て、所定量の酸素富化空気として
使用に供される。一方大気はフアン手段の吸引力
によりフイルターを介して装置内に入り、上記冷
却手段、該膜エレメントの配列を経た後、該真空
ポンプの周囲を通り、フアン手段により装置外に
排出される。
第１〜３図は、かかる本発明の膜型酸素富化器
をボツクス内に収納した状態の１例を示したもの
であり、第１図はその正面図、第２図は側面図、
第３図は背面図である。尚、各々の相対的な位置
関係としては、第１図が第２図のY1−Y2部での
断面図を一部含み、第３図は第２図のZ1−Z2部の
断面図を含み、第２図は第１図のX1−X2部、第
３図のX1−X2部に相当する部分での内側方向の
断面図を示したものである。
即ち第１〜第３図に示す如く騒音源である真空
ポンプ１及びフアン２は金属製の防音ボツクス３
に収納されており、該防音ボツクスの内面は制振
材及び吸音材で覆われている。真空ポンプはバネ
６を介して防音ボツクスの下面に支持されてお
り、ポンプの振動が吸収されるように設けられて
いる。７と８はそれぞれ防音ボツクスの大気流入
開口部及び大気流出開口部である。外殻は木製の
キヤビネツト１０で構成されており、上記ポンプ
及びフアンを収納した防音ボツクス３が室構造１
１の中に収納される。防音ボツクスの空気流入口
及び空気流出口に対応した位置に防音ボツクス収
納室壁にも空気通路口１２，１３が設けられてい
る。
本実施例では該防音ボツクスの大気流入通路は
空気取入口１４、冷却管１５、計器室１６、膜エ
レメント配列４を収納したモジユール室１７を経
て防音ボツクス３に至る。即ち大気流入通路は、
第１図と第２図において→…→と示す如く、
空気取入口部、冷却管収納室の上部、そこか
ら計器室１６を通りモジユール室１７へ経る、
、の部分、モジユール室１７の低部から防音
ボツクスの入口部７に経る、の部分において
合計７回屈曲している。
大気流出通路は、防音ボツクス３を出て仕切板
１８による屈曲通路を経て、外部ケース下部の排
出口１９及びトレイ２１に至る。即ち該大気流出
通路は、第２，３図において〓→…→〓と示す如
く、合計８回の屈曲回数を有している。尚、大気
排出口で屈曲排出される事の騒音低下効果が小さ
く無視して考えるのがよい。尚、通路には吸音材
が貼付されている。
又、真空ポンプにより吸引された酸素富化空気
は、ポンプの脈動を防止するための消音タンク２
０を介して、富化空気出口２１に至るように導管
が配されており、該消音タンク２０は防音ボツク
ス３の内側に収納されていることが好ましい。
以上述べた如く、本発明の酸素富化器は、電動
機、ポンプ手段、フアン手段を防音ボツクス内に
収納し、大気取入口からその防音ボツクスまでに
致る大気流入通路と該防音ボツクスから大気排出
口までの大気流出通路の各々が共に５回以上さら
に好ましくは７回以上の屈曲回数を有することを
特徴としている。
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
が低騒音化に有効である。さらに該大気流出通路
の長さが大気流入通路長の0.4〜2.0倍の範囲、更
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つたり、流出
側両方のバランスがとれずどちらか１方の騒音が
残つてしまうことになりやすい。
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のが好ましい。通路の
内面全体に吸音材を設けるとさらに騒音低下が可
能である。
本発明の酸素富化器は、その外殻ボツクスが防
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、アリ溝
による接続や、パネル面２２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、防音上顧厚さ15mm
以であり、また軽量化のためには15〜20mmの厚さ
が好ましく、騒音が直接当りにくい部分について
その内部をルーター抜き加工することも有効であ
る。
また本発明の特徴の１つである防音ボツクスに
関しては、それを構成する素材としてはいかなる
ものでもよいが、防音上ある程度以上の質量を要
し、且つ小型化を図るためには鉄板等の金属製が
好ましい。その厚さとしては、0.7mm以上が好ま
しく、全体の軽量化を図るためにも1.5mm以下の
厚さが良い。かかる防音ボツクスは、騒音対策上
その内側に制振材が吸音材を具備することが好ま
しく、またその外側には空間部を設けた状態でさ
らに木製ボツクス内に収納した状態で、該筐体に
納めることが望ましい。
また酸素富化空気の流出系についての騒音防止
対策としては、ポンプ吐出側にその脈動音を減衰
させるための消音タンクを設けるのが有効であ
る。特に該消音タンクは前記防音ボツクス内に設
けるのがよい。さらに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
調節手段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10cm以上に長くしたり、消音タンクを設
けたり、あるい屈曲部を設けたりすることが望ま
しい。
［実施例］
第１〜３図に示す酸素富化器において、仕切板
１８の枚数を変えて、大気流出通路の屈曲回数及
びその長さを変えた場合の各々の発生騒音を測定
した。騒音の測定法としては、一般の洋室にて２
時間運転後その前面から１ｍ離れた所で、床上40
cmの高さにおける騒音を測定する方法を用いた。
以下にその結果を第１表に合せて示す。
[Technical Field] The present invention relates to a device for stably obtaining air with increased oxygen concentration from the atmosphere,
The present invention relates to an oxygen enricher particularly suitable for medical use. More specifically, the present invention improves noise, which is a particularly important problem when a medical oxygen enricher is operated near a patient. [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. There are two types of oxygen enrichers: a membrane type (using a vacuum pump) and an adsorption type (using a pressure pump).Due to the difference in pump, the membrane type has a lower noise level.
Suitable for home use. However, conventional oxygen enrichers have insufficient noise countermeasures and have not yet reached sufficiently low noise levels. Measures to reduce noise generally include methods such as sealing the noise source with a sound insulating wall, reducing structure-borne sound by preventing vibration of the noise source, and attaching sound-absorbing materials to internal walls to attenuate sound. Are known. Conventional oxygen enrichers have also adopted the above noise countermeasures, but have not achieved sufficient effects. For example, in the case of a sound insulating wall that seals off a noise source, it is necessary to increase the mass of the sound insulating wall in order to improve sound insulation, but if the wall thickness is increased more than necessary, the weight and dimension of the device will increase, which is undesirable.
Furthermore, if the sound coming out of the air inlet and outlet becomes louder than the sound that passes through the wall, the noise level of the entire device will be determined by the sound coming out of the air flow path, and the sound insulation will not be effective. 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 path resistance is increased too much, the amount of air flowing will decrease.
This may cause problems such as insufficient cooling of the pump. Therefore, with conventional oxygen enrichers, it has been difficult to maintain the performance of the oxygen enricher and take sufficient noise countermeasures without increasing the weight and dimensions. [Object of the Invention] The object of the present invention is to correct the above-mentioned drawbacks of the prior art, and to improve the performance of the conventional oxygen enricher without substantially increasing the weight or size compared to the conventional oxygen enricher, and without reducing the function of the oxygen enricher. The aim is to provide an oxygen enricher with less noise. [Structure of the Invention] As a result of intensive research to achieve the above object, the present inventor has developed both an electric motor for driving a pump means required for an oxygen enricher and a fan means for cooling the same. The inventors have discovered that it is very effective to prevent noise by specifying the number of bends of the air inflow passage and the air outflow passage provided before and after the soundproof box, and have arrived at the present invention. That is, the present invention provides an oxygen enricher for obtaining oxygen-enriched air from the atmosphere using a pump means and a fan means driven by the power of an electric motor. an air intake port, an air outlet port, and the electric motor built in the enricher;
A soundproof box having a chamber structure for housing a pump means and a fan means and having an air inflow opening into the chamber structure and an air outflow opening from the chamber structure provided on a soundproof wall surface forming the chamber structure; , having an atmosphere inflow passageway that restricts the flow of atmosphere from the atmosphere intake port to the atmosphere inflow opening, and an atmosphere exhaust passageway that restricts the flow of air from the atmosphere outflow opening to the atmosphere outflow opening, The oxygen enricher is characterized in that each of the atmosphere inflow passage and the atmosphere outflow passage has a number of bends of five or more times, and a sound absorbing material is provided on at least the inner surface of the bend. Hereinafter, the present invention will be explained in more detail using the drawings. The oxygen enricher of the present invention obtains air with a higher oxygen concentration than the atmosphere, and the means for increasing the oxygen concentration may be membrane separation means, adsorption separation, or a combination of both. good. The oxygen enricher also includes at least one pump means driven by an electric motor, such as a vacuum pump, a compressor, etc., and further includes at least one fan means for cooling the electric motor, etc.
It is built-in. In order to obtain a low-noise and low-weight oxygen enricher, which is the object of the present invention, it is preferable to have one built-in vacuum pump and one fan, and in particular, a membrane type oxygen enricher is low-noise. suitable for In a membrane-type oxygen enricher, oxygen-enriched air can be obtained on the low-pressure side by flowing air over the surface of the oxygen-selective permeable membrane and maintaining a low pressure on the back side. A vacuum pump means driven by an electric motor is used as a means for maintaining such a low pressure, and a fan means is used to create a flow of air over the membrane surface and to cool the electric motor. Briefly describing an example of the components of the membrane oxygen enricher of the present invention, oxygen-enriched air concentrated in an array of membrane elements comprising said membrane passes through conduit means equipped with a vacuum gauge and is pumped through a vacuum pump. After passing through a cooling means equipped with a moisture retention function, a water separation means, a pressurizing means, a reheating pipe, etc., it passes through a flow rate adjustment means and a flow meter, and then a purification means equipped with an adsorbent, etc., and a sterilization means. After passing through a filter, etc., it is used as a predetermined amount of oxygen-enriched air. On the other hand, atmospheric air enters the apparatus through the filter by the suction force of the fan means, passes through the cooling means and the arrangement of the membrane elements, passes around the vacuum pump, and is discharged out of the apparatus by the fan means. Figures 1 to 3 show an example of the membrane-type oxygen enricher of the present invention housed in a box, with Figure 1 being a front view, Figure 2 being a side view, and Figure 2 being a side view.
FIG. 3 is a rear view. In addition, as for the relative positional relationship of each, Fig. 1 partially includes a cross-sectional view at the Y 1 - Y 2 section in Fig. 2, and Fig. 3 includes a part of the sectional view at the Z 1 - Z 2 section in Fig. 2. Including sectional views, FIG. 2 shows an inward sectional view at a portion corresponding to the X 1 -X 2 section in FIG. 1 and the X 1 -X 2 section in FIG. 3. That is, as shown in FIGS. 1 to 3, the vacuum pump 1 and fan 2, which are noise sources, are placed in a metal soundproof box 3.
The inner surface of the soundproof box is covered with a damping material and a sound absorbing material. The vacuum pump is supported on the lower surface of the soundproof box via a spring 6, and is provided so that vibrations of the pump are absorbed. Reference numerals 7 and 8 are an air inflow opening and an air outflow opening of the soundproof box, respectively. The outer shell is composed of a wooden cabinet 10, and a soundproof box 3 housing the pump and fan is housed in a chamber structure 1.
It is stored in 1. Air passage ports 12 and 13 are also provided in the wall of the soundproof box storage chamber at positions corresponding to the air inlet and air outlet of the soundproof box. In this embodiment, the air inflow passage of the soundproof box reaches the soundproof box 3 via an air intake 14, a cooling pipe 15, an instrument room 16, and a module chamber 17 housing the membrane element array 4. In other words, the air inflow passage is
As shown in Figures 1 and 2 →...→,
The air intake section, the upper part of the cooling pipe storage chamber, passes from there through the instrument room 16 to the module room 17,
, and the part extending from the lower part of the module chamber 17 to the entrance part 7 of the soundproof box are bent a total of seven times. The air outflow passage exits the soundproof box 3, passes through a bent passage formed by a partition plate 18, and reaches an outlet 19 and a tray 21 at the bottom of the outer case. That is, the atmospheric outflow passage has a total of eight bends, as shown in FIGS. Note that the noise reduction effect of bending and discharging through the air outlet is small and should be ignored. Note that sound absorbing material is pasted on the passage. In addition, the oxygen-enriched air sucked by the vacuum pump is stored in a silencer tank 2 to prevent pump pulsation.
0, a conduit is arranged leading to an enriched air outlet 21, which muffling tank 20 is preferably housed inside a soundproof box 3. As described above, the oxygen enricher of the present invention houses the electric motor, pump means, and fan means in a soundproof box, and has an air inflow passage from the air intake port to the soundproof box, and an air exhaust passage from the soundproof box. It is characterized in that each of the atmospheric outflow passages to the outlet have a number of bends of 5 or more, more preferably 7 or more. Further, 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 dimension of the enricher, more preferably at least 1.5 times the minimum value. Furthermore, it is desirable that the length of the atmosphere outflow passage is in a range of 0.4 to 2.0 times, more preferably 0.5 to 1.5 times, the length of the atmosphere inflow passage. 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 the noise from one of the passages tends to remain. Generally, the longer the distance the gas travels, the greater the noise attenuation effect will be.
If the path length is not carefully selected in the case of noise in which various frequencies coexist, such as in the enricher, there is a possibility that 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,
It has been discovered that resonance can be suppressed and at the same time, noise of various frequencies can be reduced almost equally at both the exit and entrance. Further, it is preferable to install a sound absorbing material at least at the bent portion of the passage. Noise can be further reduced by providing sound absorbing material on the entire inner surface of the passage. The oxygen enricher of the present invention has an outer box made of a soundproof material, preferably made of wood. 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 specific means for sealing, connection using dovetail grooves and grill processing on the panel surface 22 are effective, and it is preferable that the panel portion has a double structure. The wooden casing has a thickness of 15mm for soundproofing.
Therefore, in order to reduce the weight, a thickness of 15 to 20 mm is preferable, and it is also effective to router the inside of parts that are not directly exposed to noise. Regarding the soundproof box, which is one of the features of the present invention, it can be made of any material, but it requires a certain amount of mass for soundproofing, and in order to reduce the size, it is necessary to use metal such as iron plate. Preferably made by The thickness is preferably 0.7 mm or more, and in order to reduce the overall weight, the thickness is preferably 1.5 mm or less. In order to prevent noise, it is preferable that such a soundproof box has a damping material and a sound absorbing material on the inside thereof, and a space is provided on the outside of the box, and the box is housed in a wooden box. It is desirable to pay. Furthermore, as a noise prevention measure for the oxygen-enriched air outflow system, it is effective to provide a muffling tank on the pump discharge side to attenuate the pulsating noise. In particular, the sound deadening tank is preferably provided within the soundproof box. Furthermore, when the enriched air is put to use, a flow rate regulating means having a function of discharging excess enriched air may be used, but a discharge pipe is installed to prevent noise generation when discharging the enriched air. For example, it is desirable to make the length longer than 10 cm, provide a sound deadening tank, or provide a bent part. [Example] In the oxygen enricher shown in Figs. 1 to 3, the number of partition plates 18 was changed, and the number of bends and the length of the air outlet passage were changed, and the generated noise was measured. The noise measurement method is 2 in a general Western-style room.
After driving for an hour, place 40 meters above the floor at a distance of 1 meter from the front of the vehicle.
A method was used to measure the noise at a height of cm.
The results are shown below along with Table 1.
【表】
［発明の効果］
本発明による酸素富化器は、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
有ている。特に患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、防音対策によつて特に重量や大
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。[Table] [Effects of the Invention] The 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 in close proximity to patients. Furthermore, due to the soundproofing measures, there is no particular increase in weight or size, and it has excellent portability.
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ものであり、第１図はその正
面図（１部が断面図）第２図はその側面の断面
図、第３図は背面図（大部分が断面図）である。
第２図において、１は真空ポンプ、２がフアン、
３が防音ボツクスである。
Figures 1 to 3 show one example of oxygen-enriched air in the present invention.
1 is a front view (partially a sectional view), FIG. 2 is a side sectional view, and FIG. 3 is a rear view (mostly a sectional view).
In Figure 2, 1 is a vacuum pump, 2 is a fan,
3 is a soundproof box.
Claims (1)
びフアン手段を使用して大気より酸素富化空気を
得る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、該富化器に内蔵された該電動機、ポンプ手段
及びフアン手段を収納する室構造であつて該室構
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
部を有した防音ボツクスと、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流出通路とを有し、
該大気流入通路と該大気流出通路の各々が５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。 ２ 該大気流出通路の長さが、該大気流入通路の
長さの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。 ３ 該大気流入通路及び大気流出通路の各々の長
さが、該富化器外殻を構成する面における相対し
た両端間の距離の最小値以上である特許請求の範
囲第１項、第２項いずれかに記載の酸素富化器。 ４ 該大気流入通路及び大気流出通路の各々は、
大気の出入口部以外が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。 ５ 該防音ボツクスは、内面が吸音材で覆われた
金属製ボツクスであり、制振材を用いて該電動機
及びポンプ手段を内蔵されたものであり、さらに
該ボツクス全体が防音用木製ボツクスに収納され
た状態で該富化器の外殻に収納されている特許請
求の範囲第１項記載の酸素富化器。 ６ 該富化器の外殻が防音用木製キヤビネツトで
あり、大気の取入口と排出口以外は密閉化された
構造である特許請求の範囲第１項記載の酸素富化
器。 ７ 該酸素富化空気を取り出すための通路が、配
管手段からなり、その途中に該ポンプ手段により
発生した脈動音を消音するための消音タンクを具
備したものである特許請求の範囲第１項記載の酸
素富化器。 ８ 該消音タンクが、該防音ボツクス内に収納さ
れた特許請求の範囲の第１項記載の酸素富化器。[Scope of Claims] 1. In an oxygen enricher that obtains oxygen-enriched air from the atmosphere using a pump means and a fan means driven by the power of an electric motor, an oxygen enricher provided on a surface forming an outer shell of the enricher. a chamber structure that houses an air intake inlet and an air outlet, and the electric motor, pump means, and fan means built into the enricher, and is provided on a soundproof wall surface forming the chamber structure; a soundproof box having an air inflow opening to the chamber structure and an air outflow opening from the chamber structure; an air inflow passageway that restricts the flow of air from the air intake to the air inflow opening; and an air outflow opening. and an atmosphere outflow passage that restricts the flow of the atmosphere from the part to the atmosphere outlet,
An oxygen enricher characterized in that each of the atmosphere inflow passage and the atmosphere outflow passage has a number of bends of five or more times, and a sound absorbing material is provided on at least the inner surface of the bend. 2. 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. 3. Claims 1 and 2, wherein the length of each of the atmospheric inflow passage and the atmospheric outflow passage is equal to or greater than the minimum distance between opposite ends of the surface constituting the enricher outer shell. The oxygen enricher according to any of the above. 4. Each of the atmosphere inflow passage and the atmosphere outflow passage is
The oxygen enricher according to claim 1, wherein the oxygen enricher has a sealed structure except for an air inlet/outlet portion. 5. The soundproof box is a metal box whose inner surface is covered with sound-absorbing material, and the electric motor and pump means are built in using damping material, and the box is entirely housed in a soundproof wooden box. The oxygen enricher according to claim 1, wherein the oxygen enricher is housed in the outer shell of the enricher in a state in which the oxygen enricher is in a state of being oxidized. 6. The oxygen enricher according to claim 1, wherein the outer shell of the enricher is a soundproof wooden cabinet, and the structure is sealed except for the air intake and outlet. 7. The passage for taking out the oxygen-enriched air is composed of piping means, and a muffling tank is provided along the way for muffling the pulsating noise generated by the pumping means. oxygen enricher. 8. The oxygen enricher according to claim 1, wherein the sound deadening tank is housed within the soundproof box.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59274654A JPS61155204A (en) | 1984-12-28 | 1984-12-28 | Oxygen enriching apparatus |
| EP85115335A EP0185980B1 (en) | 1984-12-27 | 1985-12-03 | Oxygen enriching apparatus |
| EP89103387A EP0346566A3 (en) | 1984-12-27 | 1985-12-03 | Oxygen enriching apparatus |
| DE3587995T DE3587995T2 (en) | 1984-12-27 | 1985-12-03 | Oxygenation device. |
| US07/163,124 US4789388A (en) | 1984-12-27 | 1988-02-17 | Oxygen enriching apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59274654A JPS61155204A (en) | 1984-12-28 | 1984-12-28 | Oxygen enriching apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61155204A JPS61155204A (en) | 1986-07-14 |
| JPH03324B2 true JPH03324B2 (en) | 1991-01-07 |
Family
ID=17544701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59274654A Granted JPS61155204A (en) | 1984-12-27 | 1984-12-28 | Oxygen enriching apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61155204A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009147977A1 (en) | 2008-06-03 | 2009-12-10 | 株式会社エクセルシア | Method of treating feces or excretions and apparatus for treating feces or excretions |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63242901A (en) * | 1987-03-30 | 1988-10-07 | Teijin Ltd | Oxygen concentrating device |
| JP2569147B2 (en) * | 1988-09-26 | 1997-01-08 | 帝人株式会社 | Respiratory gas supply device |
| JPH0397605A (en) * | 1989-09-11 | 1991-04-23 | Teijin Ltd | Oxygen concentrator |
| JPH11228107A (en) * | 1998-02-18 | 1999-08-24 | Taizo Nagahiro | Method and device for concentrating gaseous oxygen |
| JP2002153558A (en) * | 2000-11-17 | 2002-05-28 | Ngk Spark Plug Co Ltd | Oxygen concentrator |
| KR100978764B1 (en) | 2002-03-05 | 2010-08-30 | 데이진 가부시키가이샤 | Oxygen enricher |
| 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60200804A (en) * | 1984-03-23 | 1985-10-11 | Teijin Ltd | Oxygen enriching device |
-
1984
- 1984-12-28 JP JP59274654A patent/JPS61155204A/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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009147977A1 (en) | 2008-06-03 | 2009-12-10 | 株式会社エクセルシア | Method of treating feces or excretions and apparatus for treating feces or excretions |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61155204A (en) | 1986-07-14 |
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