JPH08942A - Dehumidifying hollow fiber membrane model - Google Patents
Dehumidifying hollow fiber membrane modelInfo
- Publication number
- JPH08942A JPH08942A JP6138904A JP13890494A JPH08942A JP H08942 A JPH08942 A JP H08942A JP 6138904 A JP6138904 A JP 6138904A JP 13890494 A JP13890494 A JP 13890494A JP H08942 A JPH08942 A JP H08942A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- porous
- case
- sweep gas
- 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
- Separation Using Semi-Permeable Membranes (AREA)
- Drying Of Gases (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、計装用、分析用、空調
用、保存用等に用いられる乾燥気体を得るため、気体中
に存在する水蒸気を除去する脱湿用の中空糸膜モジュー
ルに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow fiber membrane module for dehumidification for removing water vapor present in a gas in order to obtain a dry gas used for instrumentation, analysis, air conditioning, storage, etc. It is a thing.
【０００２】[0002]
【従来の技術】乾燥気体を得るために気体中の水蒸気を
除去する方法には、冷却凝縮方法、吸着方法、グリコー
ル接触方法、膜利用方法等が知られている。これらのう
ち膜利用方法が、省エネルギー化、小型化、軽量化、操
作容易性、安全面の優位性から注目されている。2. Description of the Related Art As a method for removing water vapor in a gas to obtain a dry gas, a cooling condensation method, an adsorption method, a glycol contact method, a membrane utilization method and the like are known. Among these, the method of using a membrane is drawing attention because of its advantages in energy saving, miniaturization, weight reduction, operability, and safety.
【０００３】膜を利用する場合、耐圧性に優れているこ
とや小型化が容易なことから中空糸膜が多く用いられて
いる。中空糸膜を用いた脱湿方法として、中空糸膜の中
空部に水蒸気含有気体を供給すると共に外部空間に水蒸
気吸収液を流して、水蒸気が中空糸膜の中空部側から透
過して脱湿を行う方法（特開平２−４０２１４号）、中
空糸膜の中空部に水蒸気含有気体を供給すると共に外部
空間に既に脱湿された気体の一部をスイープ気体として
流して、水蒸気が中空糸膜の中空部側から透過して脱湿
を行う方法（特開平１−２３６９２１号、特開平２−８
３０１５号）等が提案されている。When using a membrane, a hollow fiber membrane is often used because of its excellent pressure resistance and easy miniaturization. As a dehumidification method using a hollow fiber membrane, a water vapor-containing gas is supplied to the hollow portion of the hollow fiber membrane and a water vapor absorbing liquid is caused to flow into the external space so that water vapor permeates from the hollow portion side of the hollow fiber membrane to dehumidify it. (Japanese Patent Application Laid-Open No. 2-40214), a steam-containing gas is supplied to the hollow portion of the hollow fiber membrane, and a part of the gas that has already been dehumidified is allowed to flow to the external space as a sweep gas so that the steam can be removed. For dehumidifying by permeating from the hollow part side of JP-A No. 1-236921, JP-A 2-8
No. 3015) has been proposed.
【０００４】[0004]
【発明が解決しようとする課題】然乍、前者の方法は水
蒸気吸収液やその循環系が必要であり、後者の方法はモ
ジュール構造や装置が複雑になるという問題がある。ま
た何れの方法も、中空糸膜の束の外周側から水蒸気吸収
液やスイープ気体といった脱湿媒体を供給していること
から、脱湿媒体が中空糸膜の束中を通過しにくいこと
や、偏流が発生しやすいため膜面積が有効に利用され難
いといった問題点が指摘されている。However, the former method requires a water vapor absorbing liquid and its circulation system, and the latter method has a problem that the module structure and the apparatus are complicated. Further, in any method, since the dehumidifying medium such as the water vapor absorbing liquid or the sweep gas is supplied from the outer peripheral side of the bundle of hollow fiber membranes, it is difficult for the dehumidifying medium to pass through the bundle of hollow fiber membranes, It has been pointed out that it is difficult to effectively use the membrane area because uneven flow is likely to occur.
【０００５】本発明の目的は、上記問題点を解決し、水
蒸気吸収液などの別の脱湿媒体が不要であり、外部配管
等のない簡易な構造で脱湿媒体としてのスイープ気体を
供給でき、かつ、該供給先を中空糸膜の束の内部とする
ことにより、中空糸膜束の内部に偏流の少ないスイープ
気体の流れを得ることができ、有効に水蒸気含有気体中
の水蒸気を除去できる脱湿用中空糸膜モジュールを提供
することにある。The object of the present invention is to solve the above-mentioned problems, to eliminate the need for another dehumidifying medium such as a water vapor absorbing liquid, and to supply a sweep gas as a dehumidifying medium with a simple structure having no external piping. Moreover, by making the supply destination the inside of the bundle of hollow fiber membranes, a flow of sweep gas with less uneven flow can be obtained inside the bundle of hollow fiber membranes, and the steam in the steam-containing gas can be effectively removed. It is to provide a hollow fiber membrane module for dehumidification.
【０００６】[0006]
【課題を解決するための手段】この様な目的は、以下の
発明により達成される。Such an object is achieved by the following inventions.
【０００７】（１）円筒状多孔ケース、ケースの内部に
位置する中空糸膜の束及びケースの両端部で中空糸膜を
ケースに固定するポッティング部からなり、ポッティン
グ部で固定された中空糸膜の両端末が開口状態である中
空糸膜モジュールに於て、乾燥気体出口側ポッティング
部の端面のみを開口させたスイープ気体供給用多孔管を
中空糸膜の束の内部に設けたことを特徴とする脱湿用中
空糸膜モジュール。(1) A hollow fiber membrane comprising a cylindrical porous case, a bundle of hollow fiber membranes located inside the case, and potting parts for fixing the hollow fiber membranes to the case at both ends of the case. In the hollow fiber membrane module in which both terminals are in an open state, a sweep gas supply perforated pipe having only the end surface of the dry gas outlet side potting portion opened is provided inside the bundle of hollow fiber membranes. A hollow fiber membrane module for dehumidification.
【０００８】（２）中空糸膜が均質層をその両側から多
孔質層で挟み込んだ三層構造の複合中空糸膜であること
を特徴とする上記（１）記載のモジュール。(2) The module according to (1) above, wherein the hollow fiber membrane is a composite hollow fiber membrane having a three-layer structure in which a homogeneous layer is sandwiched by porous layers from both sides thereof.
【０００９】（３）スイープ気体供給用多孔管を中空糸
膜の束の中央部に設けたことを特徴とする上記（１）記
載のモジュール。(3) The module according to the above (1), wherein the sweep gas supplying porous tube is provided at the center of the bundle of hollow fiber membranes.
【００１０】（４）スイープ気体供給用多孔管が多孔質
中空糸膜であることを特徴とする上記（１）記載のモジ
ュール。(4) The module according to (1) above, wherein the sweep gas supplying porous tube is a porous hollow fiber membrane.
【００１１】以下、図面により本発明を具体的に説明す
る。図１は、本発明の脱湿用中空糸膜モジュールの一例
を示す模式断面図である。壁面に多数の孔を有する円筒
状多孔ケース１の中に、ほぼ平行になるように多数本集
束された中空糸膜２と複数の微小孔を有するスイープ気
体供給用多孔管３が、中空糸膜とスイープ気体供給用多
孔管の外面同士の間、及び該外面と円筒状多孔ケース内
面の間に充填される樹脂からなるポッティング部４によ
り固定される。スイープ気体供給用多孔管は乾燥気体出
口側ポッティング部の端面においてのみ、中空糸膜は両
側のポッティング部の端面において開口状態にある。The present invention will be described in detail below with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing an example of the dehumidifying hollow fiber membrane module of the present invention. In a cylindrical porous case 1 having a large number of holes on its wall surface, a large number of hollow fiber membranes 2 bundled so as to be substantially parallel to each other and a sweep gas supplying porous tube 3 having a plurality of micropores are used. And the sweep gas supply perforated pipes are fixed to each other by the potting portion 4 made of a resin filled between the outer surfaces and between the outer surface and the inner surface of the cylindrical porous case. The sweep gas supply perforated tube is open only on the end faces of the potting parts on the dry gas outlet side, and the hollow fiber membranes are open on the end faces of the potting parts on both sides.
【００１２】図２は、本発明の脱湿用中空糸膜モジュー
ルの別の一例を示す模式断面図である。円筒状多孔ケー
ス１、中空糸膜２、ポッティング部３は図１と同様であ
り、スイープ気体供給用多孔管として多孔質中空糸膜５
を用いたものである。FIG. 2 is a schematic sectional view showing another example of the dehumidifying hollow fiber membrane module of the present invention. The cylindrical porous case 1, the hollow fiber membrane 2 and the potting portion 3 are the same as those in FIG. 1, and the porous hollow fiber membrane 5 is used as a sweep gas supply porous tube.
Is used.
【００１３】本発明に用いる中空糸膜は、水蒸気及び窒
素ガスを透過するものであればその材質、構造にはとら
われないが、親水性高分子からなる中空糸膜の場合、膜
面を水膜が覆い性能低下をきたす恐れがあることから、
ポリエチレン、ポリプロピレン、ポリ４−メチルペンテ
ン−１等のポリオレフィン、ポリテトラフルオロエチレ
ン、ポリフッ化ビニリデン等のフッ素系ポリマー、ポリ
スチレン、ポリエーテルエーテルケトン、ポリエーテル
ケトン等の疎水性高分子よりなる多孔質中空糸膜を用い
るのがよい。The hollow fiber membrane used in the present invention is not limited by its material and structure as long as it is permeable to water vapor and nitrogen gas, but in the case of a hollow fiber membrane made of a hydrophilic polymer, the membrane surface is a water film. Cover may cause performance deterioration,
Porous hollow made of polyethylene, polypropylene, polyolefin such as poly-4-methylpentene-1, fluoropolymer such as polytetrafluoroethylene and polyvinylidene fluoride, and hydrophobic polymer such as polystyrene, polyetheretherketone and polyetherketone It is better to use a thread film.
【００１４】多孔質中空糸膜の場合、水蒸気透過速度と
窒素透過速度の比（α）が小さいため、水蒸気と共に空
気も大量に透過し乾燥気体の回収率があまり高くない。
回収率を考慮すると、αが１０００以上である中空糸膜
のほうが効率よく脱湿が可能であり、高いαをもつ中空
糸膜として均質層を有する構造のものが好ましい。In the case of a porous hollow fiber membrane, since the ratio (α) of the water vapor permeation rate and the nitrogen permeation rate is small, a large amount of air is permeated together with water vapor, and the recovery rate of dry gas is not so high.
Considering the recovery rate, a hollow fiber membrane having α of 1000 or more can be dehumidified more efficiently, and a hollow fiber membrane having a high α having a structure having a homogeneous layer is preferable.
【００１５】均質層をその両側から多孔質層で挟み込ん
だ三層構造の複合中空糸膜が、外面側の孔にポッティン
グ樹脂が入り込みアンカー効果によってより高い接着強
度が得られること、多孔質層が両側から均質層を保護で
きること、多孔質層が強度を保持するため均質層を薄く
形成できることなどからより好ましい。In a composite hollow fiber membrane having a three-layer structure in which a homogeneous layer is sandwiched from both sides by a porous layer, potting resin enters pores on the outer surface side to obtain higher adhesive strength by an anchor effect, and the porous layer is It is more preferable because the homogeneous layer can be protected from both sides, and since the porous layer retains strength, the homogeneous layer can be formed thin.
【００１６】前述のような複合中空糸膜は、例えば多重
円筒型の紡糸ノズルを用いて均質層を形成するポリマー
と多孔質層を形成するポリマーとを交互に配置して溶融
紡糸し、次いで均質層を多孔質化することなく多孔質層
だけを多孔質化する条件で延伸する方法により製造され
る。The composite hollow fiber membrane as described above is melt-spun by alternately arranging a polymer forming a homogeneous layer and a polymer forming a porous layer by using, for example, a multi-cylindrical spinning nozzle, followed by homogenization. It is produced by a method of stretching under the condition that only the porous layer is made porous without making the layer porous.
【００１７】均質層を構成するポリマー素材としては、
ポリジメチルシロキサン、シリコンとポリカーボネート
の共重合体等のシリコンゴム系ポリマー、ポリ４−メチ
ルペンテン−１、低密度ポリエチレン等のポリオレフィ
ン系ポリマー、パーフルオロアルキル系ポリマー等のフ
ッ素含有ポリマー、エチルセルロース等のセルロース系
ポリマー、ポリフェニレンオキサイド、ポリ４−ビニル
ピリジン、ウレタン系ポリマー及びこれらポリマー素材
の共重合体或はブレンド体等の各種ポリマーを挙げるこ
とができる。As the polymer material constituting the homogeneous layer,
Silicone rubber-based polymers such as polydimethylsiloxane, copolymers of silicon and polycarbonate, poly-4-methylpentene-1, polyolefin polymers such as low-density polyethylene, fluorine-containing polymers such as perfluoroalkyl-based polymers, and cellulose such as ethyl cellulose. Examples thereof include various polymers such as a polymer, polyphenylene oxide, poly-4-vinylpyridine, a urethane polymer, and a copolymer or blend of these polymer materials.
【００１８】多孔質層を構成するポリマー素材として
は、ポリエチレン、ポリプロピレン、ポリ３−メチルブ
テン−１、ポリ４−メチルペンテン−１等のポリオレフ
ィン系ポリマー、ポリフッ化ビニリデン、ポリテトラフ
ルオロエチレン等のフッ素系ポリマー、ポリスチレン、
ポリエーテルエーテルケトン、ポリエーテルケトン等の
各種ポリマーを挙げることができる。Examples of the polymer material constituting the porous layer include polyolefin polymers such as polyethylene, polypropylene, poly-3-methylbutene-1, poly-4-methylpentene-1, and fluorine-based polymers such as polyvinylidene fluoride and polytetrafluoroethylene. Polymer, polystyrene,
Examples include various polymers such as polyether ether ketone and polyether ketone.
【００１９】均質層を構成するポリマー素材と、多孔質
層を構成するポリマー素材との組み合わせについては特
に限定されず、異種のポリマーは勿論同種のポリマーで
あってもよい。また、均質膜の厚みは５μｍ以下である
構造のものを用いるのが好ましい。５μｍより厚いと高
い水蒸気透過速度が得にくく好ましくない。本発明で使
用する好ましい膜の例として、三菱レイヨン（株）製の
三層複合中空糸膜（ＭＨＦ）が挙げられる。The combination of the polymer material forming the homogeneous layer and the polymer material forming the porous layer is not particularly limited, and different kinds of polymers may of course be the same kind of polymers. Further, it is preferable to use a homogeneous film having a thickness of 5 μm or less. If it is thicker than 5 μm, it is difficult to obtain a high water vapor transmission rate, which is not preferable. An example of a preferable membrane used in the present invention is a three-layer composite hollow fiber membrane (MHF) manufactured by Mitsubishi Rayon Co., Ltd.
【００２０】スイープ気体供給用多孔管は、加工性、ポ
ッティング部との密着性を満足し、乾燥気体の一部をス
イープ用気体として中空糸膜の外部空間に供給できるも
のであればよく、切断作業を考慮すると樹脂性のものが
よい。The sweep gas supply perforated pipe may be any one as long as it satisfies the workability and the adhesion to the potting portion and can supply a part of the dry gas as the sweep gas to the outer space of the hollow fiber membrane. Considering the work, resin is preferable.
【００２１】さらに、孔径及び孔間隔が小さく均一に開
孔していて中空糸膜の外部表面の水蒸気を滞留なく効率
的に除去できること、小型化が可能なこと、従来の加工
方法や加工装置が利用できることなどから多孔質中空糸
膜が好ましい。Furthermore, since the pore diameter and the pore spacing are small and the pores are uniformly opened, water vapor on the outer surface of the hollow fiber membrane can be efficiently removed without stagnation, miniaturization is possible, and the conventional processing method and processing apparatus are A porous hollow fiber membrane is preferable because it can be used.
【００２２】スイープ気体供給用多孔管を中空糸膜の束
の内部に設けることにより、中空糸膜束の内部より外周
側に向けて、偏流の少ないスイープ気体の流れを得るこ
とができるが、該多孔管の位置を中空糸膜の束の中央部
とすることが、偏流をより少なくできるので好ましい。By providing the porous tube for supplying sweep gas inside the bundle of hollow fiber membranes, it is possible to obtain a flow of sweep gas with less uneven flow from the inside of the bundle of hollow fiber membranes toward the outer peripheral side. It is preferable that the position of the perforated tube is at the center of the bundle of hollow fiber membranes, because uneven flow can be further reduced.
【００２３】多孔質中空糸膜を用いる場合、図２に示す
ようにＵ字状でも、一端を閉塞した直線状のものでも、
ポッティング時の樹脂の侵入がないものであればよい。
円筒多孔状ケースは加工性、強度、ポッティング部の
樹脂との密着性等を満足するものであれば何れの材質で
もよい。When a porous hollow fiber membrane is used, whether it is U-shaped as shown in FIG. 2 or linear with one end closed,
It is sufficient if the resin does not enter during potting.
The cylindrical porous case may be made of any material as long as it satisfies workability, strength, adhesion to the resin of the potting portion and the like.
【００２４】ポッティング部に用いる樹脂は、加工性、
接着性を満足し、中空糸膜の中空部内に連通する空間と
中空糸膜の外部空間と連通する空間とを仕切る部材とし
て機能するものであればよく、加工性や製造時の操作性
からエポキシ樹脂、ウレタン樹脂、シリコン樹脂、不飽
和ポリエステル樹脂等が好ましい。The resin used for the potting part is
As long as the adhesiveness is satisfied and it functions as a member that separates a space communicating with the hollow portion of the hollow fiber membrane from a space communicating with the outer space of the hollow fiber membrane, epoxy is used in view of workability and operability during manufacturing. Resin, urethane resin, silicone resin, unsaturated polyester resin and the like are preferable.
【００２５】[0025]
【作用】本発明の脱湿用中空糸膜モジュールは、水蒸気
含有気体供給口と乾燥気体出口とスイープ気体出口とを
有する容器内に装着し使用される。使用時は、中空糸膜
の中空部側の空間は水蒸気含有気体供給口と乾燥気体出
口と連通した空間を形成し、中空糸膜の外部空間はスイ
ープ気体出口と連通した空間を形成しており、両空間は
中空糸膜の膜面以外では連通していない状態にされる。The hollow fiber membrane module for dehumidification of the present invention is mounted and used in a container having a steam-containing gas supply port, a dry gas outlet and a sweep gas outlet. During use, the space on the hollow side of the hollow fiber membrane forms a space communicating with the steam-containing gas supply port and the dry gas outlet, and the external space of the hollow fiber membrane forms a space communicating with the sweep gas outlet. The two spaces are not communicated with each other except the membrane surface of the hollow fiber membrane.
【００２６】水蒸気含有気体は、容器の水蒸気含有気体
供給口から送り込まれ、中空糸膜の中空部内を水蒸気含
有気体供給口側の開口端面より、乾燥気体出口側の開口
端面に向けて流れる。該中空部内通過中に水蒸気は、そ
の分圧差から中空糸膜を透過して外部空間へ移動し、よ
り水蒸気の少ない乾燥気体となり容器の乾燥気体出口よ
り排出される。The steam-containing gas is fed from the steam-containing gas supply port of the container, and flows in the hollow part of the hollow fiber membrane from the opening end face on the steam-containing gas supply port side toward the opening end face on the dry gas outlet side. During the passage through the hollow portion, the water vapor permeates the hollow fiber membrane due to the partial pressure difference and moves to the external space, becomes dry gas with less water vapor, and is discharged from the dry gas outlet of the container.
【００２７】乾燥気体の一部は、乾燥気体出口側にのみ
開口し中空糸膜束の内部に設けられたスイープ気体供給
用多孔管を経て、水蒸気を同伴搬出するスイープ気体と
して中空糸膜の外部空間に供給される。該スイープ気体
は膜束中を内部より放射状に流れるため、膜束外周側よ
り脱湿媒体を供給する場合のように、膜束中に流入しに
くいことや、膜束の外周側を流れるような偏流が発生す
るということがなく膜面積をより有効に使用することが
できる。A part of the dry gas is passed through a sweep gas supply porous tube provided inside the hollow fiber membrane bundle, which is opened only on the dry gas outlet side, and is carried out along with water vapor as a sweep gas outside the hollow fiber membrane. Supplied to space. Since the sweep gas flows radially from the inside of the film bundle, it is difficult for the sweep gas to flow into the film bundle as in the case where the dehumidifying medium is supplied from the outer side of the film bundle, and the sweep gas may flow on the outer side of the film bundle. It is possible to use the membrane area more effectively without causing uneven flow.
【００２８】本発明によると、水蒸気吸収液などの別の
脱湿媒体が不要であり、外部配管等のない簡易な構造で
脱湿媒体としてのスイープ気体を供給でき、かつ、該供
給先を中空糸膜束の内部とすることにより、中空糸膜束
の内部より外周側に向けて偏流の少ないスイープ気体の
流れを得ることができ、有効に水蒸気含有気体中の水蒸
気を除去することができる。According to the present invention, a separate dehumidifying medium such as a water vapor absorbing liquid is not required, and a sweep gas as a dehumidifying medium can be supplied with a simple structure having no external piping and the supply destination is hollow. By setting the inside of the fiber bundle, it is possible to obtain a flow of sweep gas with less uneven flow from the inside of the hollow fiber bundle, and it is possible to effectively remove the water vapor in the water vapor-containing gas.
【００２９】[0029]
【実施例】以下実施例により本発明を具体的に説明す
る。The present invention will be described in detail with reference to the following examples.
【００３０】実施例１ 壁面に多数の孔を有するポリカーボネート製の長さ２１
５ｍｍ、外形７２ｍｍの円筒状多孔ケースの中に、均質
層がセグメント化ポリウレタン、多孔質層が高密度ポリ
エチレンからなり、その水蒸気透過速度が３．６×１０
-2（ｃｍ3 ／ｃｍ2 ・ｓｅｃ・ｃｍＨｇ）で、αが９３
５０である三層構造の複合中空糸膜（三菱レイヨン
（株）製 ＭＨＦ２００ＴＬ）を編織物状にし、中空糸
膜が平行になるような方向で丸めて集束したものを、円
筒状多孔ケースの両端面からはみ出るように挿入した。Example 1 Length 21 made of polycarbonate having a large number of holes on the wall surface
The homogeneous layer consists of segmented polyurethane and the porous layer consists of high-density polyethylene in a cylindrical porous case of 5 mm and an outer shape of 72 mm, and the water vapor transmission rate thereof is 3.6 × 10.
-2 (cm 3 / cm 2 · sec · cmHg), α is 93
A composite hollow fiber membrane (MHF200TL manufactured by Mitsubishi Rayon Co., Ltd.) having a three-layered structure of 50 is knitted into a woven fabric, and the hollow fiber membranes are rolled and bundled in a direction such that the hollow fiber membranes are parallel to each other. Inserted so that it protrudes from the surface.
【００３１】中空糸膜の膜束の中心に、スイープ気体供
給用多孔管としてポリエチレンからなる多孔質中空糸膜
（三菱レイヨン（株）製 ＥＨＦ３９０Ｃ）を、一端は
円筒状多孔ケースの端面からはみ出るように、一端はは
み出ないような位置関係となるように巻き込んだ。At the center of the hollow fiber membrane bundle, a porous hollow fiber membrane made of polyethylene (EHF390C manufactured by Mitsubishi Rayon Co., Ltd.) was used as a porous tube for supplying sweep gas, and one end of the hollow fiber membrane protruded from the end face of the cylindrical porous case. In addition, one end was caught so that the positional relationship would not protrude.
【００３２】上記各中空糸膜の外面同士の間及び外面と
円筒状多孔ケースの内面との間に、ウレタン樹脂を充填
しその両端を固定した。その後、円筒状ケースの両端面
よりはみ出た中空糸膜およびウレタン樹脂部分を切断
し、複合中空糸膜の両端及びスイープ気体供給用多孔質
中空糸膜の一端を開口状態とし、本発明の脱湿用中空糸
膜モジュールを得た。Urethane resin was filled between the outer surfaces of the hollow fiber membranes and between the outer surfaces and the inner surface of the cylindrical porous case, and both ends were fixed. After that, the hollow fiber membrane and the urethane resin portion protruding from both end surfaces of the cylindrical case are cut, and both ends of the composite hollow fiber membrane and one end of the porous hollow fiber membrane for sweep gas supply are opened to dehumidify the present invention. A hollow fiber membrane module for use was obtained.
【００３３】製作した脱湿用中空糸膜モジュールを、容
器と共に使用した一例の模式断面図を図３に示す。容器
はステンレス製で容器本体部６、容器キャップ部７から
なり、容器本体部はスイープ気体出口８を有し、容器キ
ャップ部はモジュール受け部９と水蒸気含有気体供給口
１０或は乾燥気体出口１１の何れかを有している。FIG. 3 shows a schematic sectional view of an example of using the manufactured dehumidifying hollow fiber membrane module together with a container. The container is made of stainless steel and comprises a container body 6 and a container cap 7. The container body has a sweep gas outlet 8, and the container cap comprises a module receiver 9 and a steam-containing gas supply port 10 or a dry gas outlet 11. Have any of the following.
【００３４】但し、実質的には水蒸気含有気体供給口と
乾燥気体出口とは同仕様のものとすることが可能であ
り、同一の容器キャップ部を製作し、スイープ気体供給
用多孔質中空糸膜の開口端面の装着側を乾燥気体出口と
した。However, the vapor-containing gas supply port and the dry gas outlet may be of substantially the same specifications, and the same container cap portion is manufactured, and the porous hollow fiber membrane for sweep gas supply is manufactured. The mounting side of the opening end face of was the dry gas outlet.
【００３５】本体容器と本体キャップは本体用Ｏ−リン
グ１２を挟み込んだヘルールフランジ１３で固定、密閉
した。また、脱湿用中空糸膜モジュールは、モジュール
用Ｏ−リング１４を用いてモジュール受け部に中空糸膜
の中空部側に連通する空間と外部空間に連通する空間と
が通じないように固定して、水蒸気含有気体中の脱湿を
行った。The main body container and the main body cap were fixed and sealed by a ferrule flange 13 having a main body O-ring 12 sandwiched therebetween. Also, the hollow fiber membrane module for dehumidification is fixed by using the module O-ring 14 so that the space communicating with the hollow portion side of the hollow fiber membrane and the space communicating with the external space do not communicate with the module receiving portion. Then, dehumidification was performed in a water vapor-containing gas.
【００３６】[0036]
【発明の効果】本発明の脱湿用中空糸膜モジュールは、
水蒸気吸収液などの別の脱湿媒体が不要であり、外部配
管等のない簡易な構造で脱湿媒体としてのスイープ気体
を供給でき、かつ、該供給先を中空糸膜束の内部とする
ことにより、中空糸膜束の内部より外周側に向けて偏流
の少ないスイープ気体の流れを得ることができ、水蒸気
含有気体中の水蒸気を効率よく除去できる。The hollow fiber membrane module for dehumidification of the present invention is
A separate dehumidifying medium such as a water vapor absorbing liquid is not required, and a sweep gas as a dehumidifying medium can be supplied with a simple structure without external piping, and the supply destination is inside the hollow fiber membrane bundle. This makes it possible to obtain a flow of sweep gas with less uneven flow from the inside of the hollow fiber membrane bundle toward the outer peripheral side, and the steam in the steam-containing gas can be efficiently removed.
【図１】本発明の脱湿用中空糸膜モジュールの一例を示
す模式断面図である。FIG. 1 is a schematic cross-sectional view showing an example of a dehumidifying hollow fiber membrane module of the present invention.
【図２】スイープ気体供給用多孔管が多孔質中空糸膜で
ある本発明の脱湿用中空糸膜モジュールの一例を示す模
式断面図である。FIG. 2 is a schematic cross-sectional view showing an example of the dehumidifying hollow fiber membrane module of the present invention in which the sweep gas supply porous tube is a porous hollow fiber membrane.
【図３】本発明の脱湿用中空糸膜モジュールを容器と共
に使用した一例を示す模式断面図である。FIG. 3 is a schematic cross-sectional view showing an example of using the dehumidifying hollow fiber membrane module of the present invention together with a container.
１ 円筒多孔状ケース ２ 中空糸膜 ３ スイープ気体供給用多孔管 ４ ポッティング部 ５ 多孔質中空糸膜 ６ 容器本体部 ７ 容器キャップ部 ８ スイープ気体出口 ９ モジュール受け部 １０ 水蒸気含有気体供給口 １１ 乾燥気体出口 １２ 本体用Ｏ−リング １３ ヘルールフランジ １４ モジュール用Ｏ−リング 1 Cylindrical Porous Case 2 Hollow Fiber Membrane 3 Sweep Gas Supply Porous Tube 4 Potting Part 5 Porous Hollow Fiber Membrane 6 Container Body 7 Container Cap 8 Sweep Gas Outlet 9 Module Receiver 10 Water Vapor-Containing Gas Supply Port 11 Dry Gas Outlet 12 O-ring for main body 13 Ferrule flange 14 O-ring for module
Claims (4)
する中空糸膜の束及びケースの両端部で中空糸膜をケー
スに固定するポッティング部からなり、ポッティング部
で固定された中空糸膜の両端末が開口状態である中空糸
膜モジュールに於て、乾燥気体出口側ポッティング部の
端面のみを開口させたスイープ気体供給用多孔管を中空
糸膜の束の内部に設けたことを特徴とする脱湿用中空糸
膜モジュール。1. A hollow cylindrical case comprising a cylindrical porous case, a bundle of hollow fiber membranes located inside the case, and potting portions for fixing the hollow fiber membranes to the case at both ends of the case. In a hollow fiber membrane module in which both ends are in an open state, a sweep gas supply porous tube having only the end surface of the potting portion on the dry gas outlet side opened is provided inside the bundle of hollow fiber membranes. Hollow fiber membrane module for dehumidification.
層で挟み込んだ三層構造の複合中空糸膜であることを特
徴とする請求項１記載のモジュール。2. The module according to claim 1, wherein the hollow fiber membrane is a composite hollow fiber membrane having a three-layer structure in which a homogeneous layer is sandwiched from both sides by porous layers.
束の中央部に設けたことを特徴とする請求項１記載のモ
ジュール。3. The module according to claim 1, wherein the sweep gas supplying porous tube is provided at the center of the bundle of hollow fiber membranes.
糸膜であることを特徴とする請求項１記載のモジュー
ル。4. The module according to claim 1, wherein the sweep gas supply porous tube is a porous hollow fiber membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6138904A JPH08942A (en) | 1994-06-21 | 1994-06-21 | Dehumidifying hollow fiber membrane model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6138904A JPH08942A (en) | 1994-06-21 | 1994-06-21 | Dehumidifying hollow fiber membrane model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08942A true JPH08942A (en) | 1996-01-09 |
Family
ID=15232855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6138904A Pending JPH08942A (en) | 1994-06-21 | 1994-06-21 | Dehumidifying hollow fiber membrane model |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08942A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08206439A (en) * | 1994-10-17 | 1996-08-13 | Permea Inc | Gas dehydration method |
| EP1355718A1 (en) * | 2000-12-08 | 2003-10-29 | Porous Media Corporation | Membrane air dryer with integral diffuser and method or manufacture thereof |
| EP1882750A2 (en) | 2006-07-27 | 2008-01-30 | Sanyo Special Steel Co., Ltd. | Raw material powder for laser clad valve seat and valve seat using the same |
| JP2008246374A (en) * | 2007-03-30 | 2008-10-16 | Orion Mach Co Ltd | Membrane-type drier for highly defumidified air |
| US9609894B2 (en) | 2011-09-06 | 2017-04-04 | British American Tobacco (Investments) Limited | Heating smokable material |
| US10729176B2 (en) | 2011-09-06 | 2020-08-04 | British American Tobacco (Investments) Limited | Heating smokeable material |
| US10881138B2 (en) | 2012-04-23 | 2021-01-05 | British American Tobacco (Investments) Limited | Heating smokeable material |
| US11039644B2 (en) | 2013-10-29 | 2021-06-22 | Nicoventures Trading Limited | Apparatus for heating smokeable material |
| US11647783B2 (en) | 2005-07-19 | 2023-05-16 | Juul Labs, Inc. | Devices for vaporization of a substance |
| US11904089B2 (en) | 2011-08-16 | 2024-02-20 | Juul Labs, Inc. | Devices for vaporization of a substance |
-
1994
- 1994-06-21 JP JP6138904A patent/JPH08942A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08206439A (en) * | 1994-10-17 | 1996-08-13 | Permea Inc | Gas dehydration method |
| EP1355718A1 (en) * | 2000-12-08 | 2003-10-29 | Porous Media Corporation | Membrane air dryer with integral diffuser and method or manufacture thereof |
| EP1355718A4 (en) * | 2000-12-08 | 2004-11-17 | Porous Media Corp | Membrane air dryer with integral diffuser and method or manufacture thereof |
| US11647783B2 (en) | 2005-07-19 | 2023-05-16 | Juul Labs, Inc. | Devices for vaporization of a substance |
| EP1882750A2 (en) | 2006-07-27 | 2008-01-30 | Sanyo Special Steel Co., Ltd. | Raw material powder for laser clad valve seat and valve seat using the same |
| JP2008246374A (en) * | 2007-03-30 | 2008-10-16 | Orion Mach Co Ltd | Membrane-type drier for highly defumidified air |
| US11904089B2 (en) | 2011-08-16 | 2024-02-20 | Juul Labs, Inc. | Devices for vaporization of a substance |
| US9980523B2 (en) | 2011-09-06 | 2018-05-29 | British American Tobacco (Investments) Limited | Heating smokable material |
| US10729176B2 (en) | 2011-09-06 | 2020-08-04 | British American Tobacco (Investments) Limited | Heating smokeable material |
| US9999256B2 (en) | 2011-09-06 | 2018-06-19 | British American Tobacco (Investments) Limited | Heating smokable material |
| US9609894B2 (en) | 2011-09-06 | 2017-04-04 | British American Tobacco (Investments) Limited | Heating smokable material |
| US10881138B2 (en) | 2012-04-23 | 2021-01-05 | British American Tobacco (Investments) Limited | Heating smokeable material |
| US11039644B2 (en) | 2013-10-29 | 2021-06-22 | Nicoventures Trading Limited | Apparatus for heating smokeable material |
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