JPH01297106A - Gas and liquid separation device - Google Patents
Gas and liquid separation deviceInfo
- Publication number
- JPH01297106A JPH01297106A JP12919088A JP12919088A JPH01297106A JP H01297106 A JPH01297106 A JP H01297106A JP 12919088 A JP12919088 A JP 12919088A JP 12919088 A JP12919088 A JP 12919088A JP H01297106 A JPH01297106 A JP H01297106A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- liquid
- liquid separation
- porous material
- hydrophobic porous
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 56
- 238000000926 separation method Methods 0.000 title claims abstract description 22
- 239000011148 porous material Substances 0.000 claims abstract description 28
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 24
- 238000000502 dialysis Methods 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 230000004087 circulation Effects 0.000 abstract description 2
- -1 polytetrafluoroethylene Polymers 0.000 abstract description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract description 2
- 230000006837 decompression Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000008280 blood Substances 0.000 description 4
- 210000004369 blood Anatomy 0.000 description 4
- 230000017531 blood circulation Effects 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
Description
【発明の詳細な説明】
［産業Ｌの利用分野］
この発明は，例えば医療用の透析液またはその原木中に
溶存していた気体（主として空気）を除去するための気
液分離装置に関するものである。[Detailed Description of the Invention] [Field of Application for Industry L] This invention relates to a gas-liquid separation device for removing gas (mainly air) dissolved in, for example, medical dialysate or raw wood thereof. be.
［従来の技術］
血液の透析療法においては、透析液あるいは透析液原水
（以下、透析液という）が減圧条件下で使用される場合
があるが、透析液を減圧すると透析液中に空気等の気泡
が発生して透析を阻害するという不都合がある．このた
め、透析装置においては透析液の供給系又は循環系に真
空ポンプを介して気液分離装置を設け、これによって透
析液中の空気等の除去を行っている。[Prior Art] In blood dialysis therapy, dialysate or raw dialysate water (hereinafter referred to as dialysate) is sometimes used under reduced pressure conditions. This has the disadvantage that air bubbles are generated and interfere with dialysis. For this reason, in a dialysis apparatus, a gas-liquid separator is provided in the dialysate supply system or circulation system via a vacuum pump, thereby removing air and the like from the dialysate.
従来のこの種気液分離装置としては、第６図に示すよう
に，密閉槽（２）の上部にエアーベント（４）を設け、
密閉槽（２）内にフロート（６）を透析液（８）の表面
の上下動によって上下浮動するように設け、フロート（
６）の上部に弁体（１０）をフロート（６）が所定の高
さ位置まで浮−１ニした時にエアーベント（４）の下端
部の穴（１２）を閉塞するようにした装置、第７図に示
すように、密閉槽（２）の上部にエアーベント（４）を
設け、密閉槽（２）内にフロート（６）を設け、フロー
ト（６）の上下浮動によってスイッチを０Ｎ−ＯＦＦさ
せ、これによってエアーベント（４）の電磁バルブ（１
４）を開閉させるようにした装置などが知られている。As shown in Fig. 6, a conventional gas-liquid separator of this type has an air vent (4) installed at the top of a closed tank (2).
A float (6) is provided in the sealed tank (2) so as to float up and down depending on the vertical movement of the surface of the dialysate (8).
6) A device in which a valve body (10) is placed on top of the float (6) to close the hole (12) at the lower end of the air vent (4) when the float (6) floats to a predetermined height position. As shown in Figure 7, an air vent (4) is provided at the top of the sealed tank (2), a float (6) is provided in the sealed tank (2), and the switch is turned ON-OFF by floating the float (6) up and down. This causes the solenoid valve (1) of the air vent (4) to close.
4) Devices that can be opened and closed are known.
［発明が解決しようとする課題］
１ユ記のような従来の気液分離装置のうち、：５６図に
示す気液分離装ｄは弁体（８）から空気がリークし易い
という問題点があり、また第７図に示す気液分離装置は
電磁弁（１４）、フロートスイッチ等が高価で、故障し
易く、液レベルの変動が急激で、流量変動及び圧変動が
大きいという問題点があった。[Problems to be Solved by the Invention] Among the conventional gas-liquid separators as described in 1U, the gas-liquid separator d shown in Figure 56 has the problem that air tends to leak from the valve body (8). Furthermore, the gas-liquid separator shown in Fig. 7 has the problems that the solenoid valve (14), float switch, etc. are expensive, easy to break down, the liquid level fluctuates rapidly, and the flow rate and pressure fluctuations are large. Ta.
また、エアーベント（４）の下流には、一般に排水管に
連結されており、排水管詰まり等の事故が生じた場合に
は、気液分離槽内の圧力よりも排水系の圧力が上昇して
しまい、弁（１２）または（１０が開いたときに排水系
の廃液が透析液系に逆流する危険があった。Additionally, the downstream side of the air vent (4) is generally connected to a drain pipe, so if an accident such as a clogged drain occurs, the pressure in the drain system will rise above the pressure in the gas-liquid separation tank. There was a risk that waste liquid from the drainage system would flow back into the dialysate system when the valve (12) or (10) was opened.
この発明は、かかる問題点を解決するためになされたも
ので、気液分離槽を接続した透析液等の供給系において
、減圧作用下に発生した気泡を再溶解させないようにし
て、効率的な気体分離を行うことができるようにした気
液分離装置を得ることを課題とするものである。This invention was made to solve this problem, and it is possible to prevent bubbles generated under reduced pressure from being redissolved in a dialysate supply system connected to a gas-liquid separation tank. An object of the present invention is to obtain a gas-liquid separator that can perform gas separation.
［課題を解決するための手段］
前記！２１題を解決するための本発明は、透析装置にお
ける気液分離槽の気液境界面に疎水性多孔質材を設けた
ことを特徴とする気液分離装置である。[Means for solving the problem] Above! The present invention for solving problem 21 is a gas-liquid separation device characterized in that a hydrophobic porous material is provided at the gas-liquid interface of a gas-liquid separation tank in a dialysis device.
前記ａ！題を解決するための他の本発明は、前記多孔質
材自体で気液分離槽を形成してなることを特徴とする気
液分離装２である。Said a! Another present invention for solving the problem is a gas-liquid separator 2 characterized in that a gas-liquid separation tank is formed of the porous material itself.
ここで、疎水性多孔質材を用いるのは、親木性であると
膜に水分子が付着して孔が目詰まりして溶存気体（空気
）金除去することができなくなってしまうからである。The reason why a hydrophobic porous material is used here is that if it is wood-philic, water molecules will adhere to the membrane, clogging the pores and making it impossible to remove dissolved gas (air) and gold. .
このような疎水性多孔質材として、疎水性多孔質膜、ス
ポンジ状の連続気泡体、不織布等が挙げられる。そして
、前記疎水性多孔質膜としては、ポリテトラフルオロエ
チレン膜、ポリスルホン膜、あるいはジメチルポリシロ
キサンなどのシリコンゴム膜等を使用することができる
。Examples of such hydrophobic porous materials include hydrophobic porous membranes, sponge-like open cells, and nonwoven fabrics. As the hydrophobic porous membrane, a polytetrafluoroethylene membrane, a polysulfone membrane, a silicone rubber membrane such as dimethylpolysiloxane, or the like can be used.
なお、疎水性多孔質材の外側に補強材を用いるのが好ま
しい、このようにすれば疎水性多孔質材の破損を防止す
ることができるからである。Note that it is preferable to use a reinforcing material on the outside of the hydrophobic porous material, since this can prevent damage to the hydrophobic porous material.
この疎水性多孔質材は、気液分離槽において、液面に対
して木下に張設することができるし、また、液面に対し
て傾斜させて設けることも、また液面に対して垂直に設
けることもできる（請求項２および３）。In a gas-liquid separation tank, this hydrophobic porous material can be installed below the liquid level, or installed at an angle to the liquid level, or perpendicular to the liquid level. (Claims 2 and 3).
更に、疎水性多孔質材はその孔径を０．２μｍ以下とす
ることが好ましい（請求項５）、細菌の気液分離槽内へ
の侵入を阻止することができ、気液分離槽内てを清浄に
保持することができるからである。Furthermore, it is preferable that the hydrophobic porous material has a pore diameter of 0.2 μm or less (claim 5), which can prevent bacteria from entering the gas-liquid separation tank. This is because it can be kept clean.
［作 用Ｊ
この発明においては、気液分ｇｌ槽内に透析液を供給循
環させると気液分ｇｌ槽内において透析液の溶存気体（
空気）が疎水性多孔質材を介して外に排出される。[Function J] In this invention, when the dialysate is supplied and circulated in the gas-liquid GL tank, the dissolved gas (
air) is expelled to the outside through the hydrophobic porous material.
［実施例］ 第１図は本願の第一実施例を示す説＃１図である。[Example] FIG. 1 is a diagram #1 showing the first embodiment of the present application.
同図において（２）は密閉槽、（８）はこの密閉槽内に
充填された透析液、（１６）は密閉槽（２）のＬ面に張
設された疎水性多孔質材、 （１８）はこの疎水性多孔
質材の更にその上面に張設された補強材である。In the figure, (2) is a sealed tank, (8) is the dialysate filled in this sealed tank, (16) is a hydrophobic porous material stretched on the L side of the sealed tank (2), (18) ) is a reinforcing material stretched over the top surface of this hydrophobic porous material.
第２図は本願の第二実施例を示す説明図である。FIG. 2 is an explanatory diagram showing a second embodiment of the present application.
基本的構成は第一実施例と全く同じであるが、密閉槽（
２）の上面に疎水性多孔質材（１６）が水平面より傾斜
して設けられている点で相違する。The basic configuration is exactly the same as the first embodiment, but the closed tank (
2) is different in that the hydrophobic porous material (16) is provided on the upper surface at an angle with respect to the horizontal plane.
第３図は木廟の第三実施例を示す説明図である。FIG. 3 is an explanatory diagram showing a third embodiment of the Mokumyo temple.
基本的４１ｉ成は第一実施例と全く同じであるが、密閉
槽（２）の側面に疎水性多孔質材（！６）が垂直に設け
られている点で相違する。The basic 41i configuration is exactly the same as in the first embodiment, except that a hydrophobic porous material (!6) is provided vertically on the side surface of the closed tank (2).
第４図は本願他の発明の一実施例を示す説明図である。FIG. 4 is an explanatory diagram showing an embodiment of another invention of the present application.
この実施例においては、疎水性多孔質材（１６）自体で
気液分離槽が形成されている。すなわち、この気液分離
槽は、透析液導入管（５）および透析液排出管（７）を
備えた基板（９）に袋状の疎水性多孔質材（１６）を張
設、その疎水性多孔質材（１６）の外側に補強材（１８
）たとえば金網あるいは線条フレームを設けてなる。In this embodiment, the gas-liquid separation tank is formed by the hydrophobic porous material (16) itself. That is, in this gas-liquid separation tank, a bag-shaped hydrophobic porous material (16) is stretched over a substrate (9) equipped with a dialysate inlet pipe (5) and a dialysate discharge pipe (7). A reinforcing material (18) is placed on the outside of the porous material (16).
) For example, a wire mesh or a wire frame is provided.
このように構成された気液分離装置は透析装置中におい
て第５図に示すようにして使用される。The gas-liquid separator thus constructed is used in a dialysis machine as shown in FIG.
すなわち、第５図において、（２０）は血液が矢印ａに
示すように循環する血液循環路、（２２）はこの血液循
環路の途中に設けられたダイアライザー。That is, in FIG. 5, (20) is a blood circulation path through which blood circulates as shown by arrow a, and (22) is a dialyzer provided in the middle of this blood circulation path.
（２４）はこのダイアライザーに血液を送るために血液
循環路（２０）の途中であって、ダイアライザー（２２
）の−に流側に設けられた血液ポンプである。(24) is in the middle of the blood circulation path (20) to send blood to this dialyzer, and the dialyzer (22)
) is a blood pump installed on the downstream side.
また、 （２６）はダイアライザー（２２）に透析液を
矢印すに示すように供給する透析液供給路であり。Further, (26) is a dialysate supply path that supplies dialysate to the dialyzer (22) as shown by the arrow.
この透析液供給路（２６）には上浣から下流に向かって
絞り弁（２８）、ポンプ（３０）、ヒータ（３２）、第
一の気液分離装置（３０及び複式ポンプにおける第１ポ
ンプ（３６ａ）がこの順に直列に設けられ、第一の気液
分子ｔ装置（３０から絞り弁（２８）の入側にかけては
透析液が矢印Ｃに示すように流れる透析液帰還路（３８
）が形成されている。This dialysate supply path (26) includes a throttle valve (28), a pump (30), a heater (32), a first gas-liquid separator (30), and a first pump ( 36a) are provided in series in this order, and a dialysate return path (38
) is formed.
更に、（４０）はダイアライザー（２２）の出側に形成
された透析液を矢印ｄに示すように排出させる透析液排
出路であり、この透析液排出路にはポンプ（４２）、第
二の気液分離装置（４４）、複式ポンプ（３６）におけ
る第２ポンプ（３６ｂ）がこの順に直列に設けられてい
る。また、除水ポンプ（４６）は複式ポンプ（ａ６）に
おける第２ポンプ（３６ｂ）と並列に設けられている。Further, (40) is a dialysate discharge path for discharging the dialysate formed on the outlet side of the dialyzer (22) as shown by arrow d, and this dialysate discharge path includes a pump (42) and a second dialysate. A gas-liquid separator (44) and a second pump (36b) in the duplex pump (36) are provided in series in this order. Moreover, the water removal pump (46) is provided in parallel with the second pump (36b) in the duplex pump (a6).
ポンプ（４２）の入側と第二の気液分離装置（４４）と
はバイパス路（４８）で結ばれており、このバイパス路
の途中には圧力調整弁（５０）が設けられている。The inlet side of the pump (42) and the second gas-liquid separator (44) are connected by a bypass path (48), and a pressure regulating valve (50) is provided in the middle of this bypass path.
上記のように構成された装置において、気液分離装置は
従来の気液分離装置と略凹−の条件で使用した場合に気
体の除去率を著しく向上させ、透析装置の性箋を向上さ
せることができ、透析における安全性の向上に資するこ
とができる。In the device configured as described above, the gas-liquid separator significantly improves the gas removal rate when used under substantially concave conditions compared to the conventional gas-liquid separator, and improves the properties of the dialysis device. This can contribute to improving safety in dialysis.
また、透析型との構造が筒中になるので、その操作制御
が簡単になり、更に、廉価に量産することができる。In addition, since the structure of the dialysis type is in a cylinder, its operation and control becomes simple, and furthermore, it can be mass-produced at low cost.
以上この発明の好適な実施例について説明したが、この
発明の精神を逸脱しない範囲内において種々の設計変更
をなし得ることは勿論である。Although the preferred embodiments of the present invention have been described above, it goes without saying that various design changes can be made without departing from the spirit of the invention.
［発明の効果］
以北説明したとおり１本願発明によれば、フロート電磁
弁等が不要となり、また気液分ｇｌ槽内の気相がほとん
どないため消毒不完全な状態がなくなり、排水系からの
逆流による逆汚染もなく、また０、２１Ｌｍ以下の孔径
であれば空気中の浮遊細菌の浸入を阻止することができ
、透析液経路を清浄に保持することができる。[Effects of the Invention] As explained above, according to the present invention, there is no need for a float solenoid valve, etc., and since there is almost no gas phase in the gas-liquid GL tank, there is no incomplete sterilization, and the water is removed from the drainage system. There is no back contamination due to backflow of water, and if the pore size is 0.21 Lm or less, the infiltration of airborne bacteria can be prevented, and the dialysate route can be kept clean.
また、本願の請求項２〜４の発明によれば気体流入、排
出のバランスがくずれると液レベルが変化するので、気
体流入１に対応して気体排出用の膜面積が増減するとい
う効果がある。更に、液レベルが低下すると膜面積が増
加し、気体の透過量が増大し、液レベルが上昇するので
、液レベルの変化が少ないという効果もある。Further, according to the inventions of claims 2 to 4 of the present application, since the liquid level changes when the balance between gas inflow and discharge is disrupted, there is an effect that the membrane area for gas discharge increases or decreases in response to the gas inflow 1. . Furthermore, when the liquid level decreases, the membrane area increases, the amount of gas permeation increases, and the liquid level rises, so there is also the effect that changes in the liquid level are small.
第１図は本願の第一実施例を示す説明図、第２図は本願
の第二実施例を示す説明図、第３図は本願の第三実施例
を示す説明図、第４図は本願の第四実施例を示す説明図
、第５図は透析装置の全体構成を示す説明図、第６図及
び第７図は従来の気液分離装置を示す説明図である。
（１６）・・・疎水性多孔質材。
第１図 第２図
第３図 窮４図
第６図 第７図Fig. 1 is an explanatory diagram showing the first embodiment of the present application, Fig. 2 is an explanatory diagram showing the second embodiment of the present application, Fig. 3 is an explanatory diagram showing the third embodiment of the present application, and Fig. 4 is an explanatory diagram showing the third embodiment of the present application. FIG. 5 is an explanatory diagram showing the overall configuration of a dialysis apparatus, and FIGS. 6 and 7 are explanatory diagrams showing a conventional gas-liquid separation apparatus. (16) Hydrophobic porous material. Figure 1 Figure 2 Figure 3 Figure 4 Figure 6 Figure 7
Claims (5)
性多孔質材を設けたことを特徴とする気液分離装置。(1) A gas-liquid separation device characterized in that a hydrophobic porous material is provided on the gas-liquid interface of a gas-liquid separation tank in a dialysis device.
けたことを特徴とする請求項１に記載の気液分離装置(2) The gas-liquid separator according to claim 1, wherein the hydrophobic porous membrane is provided at an angle with respect to the liquid horizontal plane.
けてなることを特徴とする前記請求項１に記載の気液分
離装置。(3) The gas-liquid separation device according to claim 1, wherein the hydrophobic porous material is provided perpendicularly to a liquid horizontal plane.
とを特徴とする気液分離装置。(4) A gas-liquid separation device characterized in that the porous material itself forms a gas-liquid separation tank.
たことを特徴とする請求項１から前記請求項４までのい
ずれかに記載の気液分離装置(5) The gas-liquid separator according to any one of claims 1 to 4, wherein the hydrophobic porous material has a pore diameter of 0.2 μm or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12919088A JPH01297106A (en) | 1988-05-26 | 1988-05-26 | Gas and liquid separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12919088A JPH01297106A (en) | 1988-05-26 | 1988-05-26 | Gas and liquid separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01297106A true JPH01297106A (en) | 1989-11-30 |
Family
ID=15003370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12919088A Pending JPH01297106A (en) | 1988-05-26 | 1988-05-26 | Gas and liquid separation device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01297106A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002083278A1 (en) * | 2001-04-06 | 2002-10-24 | Akrion Llc | Membrane dryer |
-
1988
- 1988-05-26 JP JP12919088A patent/JPH01297106A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002083278A1 (en) * | 2001-04-06 | 2002-10-24 | Akrion Llc | Membrane dryer |
| US6842998B2 (en) | 2001-04-06 | 2005-01-18 | Akrion Llc | Membrane dryer |
| US6928750B2 (en) | 2001-04-06 | 2005-08-16 | Akrion, Llc | Membrane dryer |
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