JP2000185220A - Hollow fiber membrane module - Google Patents
Hollow fiber membrane moduleInfo
- Publication number
- JP2000185220A JP2000185220A JP10366668A JP36666898A JP2000185220A JP 2000185220 A JP2000185220 A JP 2000185220A JP 10366668 A JP10366668 A JP 10366668A JP 36666898 A JP36666898 A JP 36666898A JP 2000185220 A JP2000185220 A JP 2000185220A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- module
- fiber membrane
- adhesive
- case
- 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 Using Semi-Permeable Membranes (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、懸濁物質を含む原
水の濾過を目的とした中空糸膜モジュールに係わる。さ
らに詳しくは、河川水、湖沼水、地下水、海水、生活排
水、あるいは工場排水等を原水として膜濾過により大量
に除濁・除菌を行う中空糸膜モジュールに関する。TECHNICAL FIELD The present invention relates to a hollow fiber membrane module for filtering raw water containing suspended substances. More specifically, the present invention relates to a hollow fiber membrane module that performs a large amount of turbidity and sterilization by membrane filtration using river water, lake water, groundwater, seawater, domestic wastewater, industrial wastewater, or the like as raw water.
【０００２】[0002]
【従来の技術】中空糸膜モジュールは、末端を封止した
中空糸膜束を円筒状のモジュールケースに収納し、両端
部を接着剤により液密的に接着固定し、接着部を切断し
て中空糸膜中空部を開口させることにより製造されてい
る。中空糸膜モジュールは、単位容量当たりの有効膜面
積が大きく確保できるため多数の分野で利用されてい
る。2. Description of the Related Art In a hollow fiber membrane module, a hollow fiber membrane bundle whose ends are sealed is housed in a cylindrical module case, and both ends are adhesively fixed in a liquid-tight manner with an adhesive, and the adhesive portion is cut. It is manufactured by opening the hollow part of the hollow fiber membrane. Hollow fiber membrane modules are used in many fields because they can ensure a large effective membrane area per unit capacity.
【０００３】特に近年、限外濾過膜モジュール、或い
は、精密濾過膜モジュールによる、浄水或いは下水の除
濁についての適用検討が盛んに実施されており、この様
な分野では、膜モジュールの大型化による処理コストの
コストダウンが必要と考えられている。また、この除濁
分野では、原水の膜面線速の影響が少ない事と膜面積が
大きくとれる事より外圧濾過法が好ましく採用されてい
る。In recent years, application of ultrafiltration membrane modules or microfiltration membrane modules to water purification or sewage turbidity has been actively studied. In such a field, the size of membrane modules has been increasing. It is considered necessary to reduce the processing cost. In the field of turbidity, the external pressure filtration method is preferably employed because the influence of the linear velocity of the raw water on the membrane surface is small and the membrane area can be increased.
【０００４】しかし、膜モジュールの大型化には、いく
つかの問題がある。それは、モジュールの直径を大きく
することにより大型化すると、モジュールケースと接着
剤の界面で剥離が発生したり、接着部にクラックが発生
したり、また、ケースが耐熱性の低い材質の場合には、
ケースの変形を生じるという問題が発生する。これは使
用する接着剤の量が２次曲線的に増加し、接着剤の硬化
発熱も比例して高くなるため、と考えられる。However, there are some problems in increasing the size of the membrane module. When the module is enlarged by increasing the diameter of the module, peeling occurs at the interface between the module case and the adhesive, cracks occur at the bonding part, and when the case is made of a material with low heat resistance, ,
There is a problem that the case is deformed. This is considered to be because the amount of the adhesive to be used increases in a quadratic curve, and the heat of curing of the adhesive increases in proportion.
【０００５】また、モジュールを大径化して、モジュー
ルに充填する中空糸膜本数を極端に増やして膜面積を増
加し、濾過能力をアップさせようとすると、中空糸膜同
士の隙間が狭くなり、外圧濾過運転では、原水中の濁質
物質が膜と膜の間に堆積していき、逆洗運転やエアーバ
ブリング運転で、膜間に堆積した懸濁物質が中空糸膜束
外に排出されにくくなり、長期間の運転では、濾過能力
の低下に繋がる。そのため、大径のモジュールにおいて
は中空糸膜の充填率を下げる必要がある。ところが、ケ
ースに収納する中空糸膜の本数を下げていっても、モジ
ュールの製造する方法として、モジュールを水平におい
て回転させながら接着する遠心接着法により製造する場
合には、中空糸膜自身の自重で、ケースの下方に中空糸
膜束が偏って接着される。Further, when the diameter of the module is increased and the number of hollow fiber membranes to be filled in the module is extremely increased to increase the membrane area and increase the filtration capacity, the gap between the hollow fiber membranes becomes narrow. In the external pressure filtration operation, suspended matter in raw water accumulates between the membranes, and in the backwashing operation or air bubbling operation, the suspended solids accumulated between the membranes are not easily discharged out of the hollow fiber membrane bundle. Therefore, long-term operation leads to a decrease in filtration capacity. Therefore, in a large-diameter module, it is necessary to reduce the filling rate of the hollow fiber membrane. However, even if the number of hollow fiber membranes housed in the case is reduced, when the module is manufactured by a centrifugal bonding method in which the module is horizontally rotated and bonded, the weight of the hollow fiber membrane itself is reduced. Thus, the hollow fiber membrane bundle is biased and adhered below the case.
【０００６】中空糸膜がケース内で偏って接着されたモ
ジュールでは、中空糸膜の集まった部分では、膜の充填
率は高いままであり、堆積物質の膜束外への排出性は良
くならず、さらに、中空糸膜の疎な部分と密な部分がモ
ジュール内に出来るため、供給される原水やエアーバブ
リング運転のエアーの流れが不均一になりモジュールケ
ース内の部位によって、膜の濾過性能が大きく異なり長
期間の濾過運転においては、モジュールの濾過性能の低
下をきたすと言う問題が発生する。[0006] In a module in which hollow fiber membranes are bonded in a biased manner in a case, if the hollow fiber membranes are gathered, the filling rate of the membrane remains high, and if the discharging property of the deposited material out of the membrane bundle is good. In addition, since the sparse and dense portions of the hollow fiber membrane can be formed in the module, the supplied raw water and the air flow in the air bubbling operation become uneven, and the filtration performance of the membrane depends on the location in the module case. However, in a long-term filtration operation, there is a problem that the filtration performance of the module is reduced.
【０００７】大型モジュールでの接着剤の硬化発熱を抑
える方法として、特開昭６０−２３２２０７号公報に
は、接着剤が注入される部分に予め仕切部材を挿入し、
中空糸膜の糸束を仕切部材に応じて分割した後、接着剤
を注入する方法が記載されている。ところが、該公報の
発熱を抑える方法を用いても、ケースと接着剤の界面剥
離や接着部のクラックの発生は防止出来るが、ケースと
して耐熱性の低い素材を用いた場合には、ケースの変形
を抑えることは出来ない。また、仕切部材を中空糸膜束
内に挿入してもケース内での中空糸膜の偏りを防ぐこと
が出来ない。[0007] As a method of suppressing the heat generated by the curing of the adhesive in a large module, Japanese Patent Application Laid-Open No. Sho 60-232207 discloses a method in which a partition member is inserted in advance into a portion where the adhesive is injected.
A method is described in which a thread bundle of a hollow fiber membrane is divided according to a partition member, and then an adhesive is injected. However, even if the method of suppressing heat generation described in this publication is used, separation of the interface between the case and the adhesive and occurrence of cracks in the bonded portion can be prevented. However, when a material having low heat resistance is used as the case, deformation of the case is caused. Cannot be suppressed. Further, even if the partition member is inserted into the hollow fiber membrane bundle, it is not possible to prevent the hollow fiber membrane from being biased in the case.
【０００８】[0008]
【発明が解決しようとする課題】本発明は、モジュール
を大型化しても、中空糸膜がモジュールケース内で、直
径方向に全体的に分散して偏りが無く、長期間安定した
濾過性能が得られる中空糸膜モジュールを提供すること
を目的とするものである。さらに、汎用の素材を用いて
も、ケースの変形のない大型モジュールを提供するもの
である。SUMMARY OF THE INVENTION According to the present invention, even if the module is enlarged, the hollow fiber membranes are dispersed in the module case as a whole in the module case without deviation and stable filtration performance can be obtained for a long period of time. It is an object of the present invention to provide a hollow fiber membrane module that can be used. Furthermore, even if a general-purpose material is used, a large-sized module without deformation of the case is provided.
【０００９】[0009]
【課題を解決する為の手段】この発明は、上記の課題を
解決するものである。すなわち本発明は、（１）多数本
の中空糸膜がモジュールケースに収納され、両端が接着
剤により接着固定された中空糸膜モジュールにおいて、
少なくとも一方の接着固定部の中空糸膜束内に、仕切
板、及び、挿入棒がセットされ、接着剤により中空糸膜
と一体に接着固定されている事を特徴とする中空糸膜モ
ジュール、および、（２）多数本の中空糸膜がモジュー
ルケースに収納され、両端が接着剤により接着固定され
た中空糸膜モジュールにおいて、少なくとも一方の接着
固定部の中空糸膜束内に、仕切板、及び、挿入棒がセッ
トされ、且つ、中空糸膜束とケースの隙間に複数個の円
弧状板がセットされ、接着剤により中空糸膜と一体に接
着固定されている事を特徴とする中空糸膜モジュール、
に関する。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems. That is, the present invention provides (1) a hollow fiber membrane module in which a large number of hollow fiber membranes are housed in a module case and both ends are bonded and fixed by an adhesive.
A hollow fiber membrane module, wherein a partition plate, and an insertion rod are set in the hollow fiber membrane bundle of at least one of the adhesive fixing portions, and are integrally fixed to the hollow fiber membrane by an adhesive; and (2) In a hollow fiber membrane module in which a large number of hollow fiber membranes are housed in a module case and both ends are adhesively fixed by an adhesive, a partition plate and a hollow fiber membrane bundle in at least one of the adhesive fixing portions are provided. A hollow fiber membrane, wherein an insertion rod is set, a plurality of arc-shaped plates are set in a gap between the hollow fiber membrane bundle and the case, and are integrally fixed to the hollow fiber membrane with an adhesive. module,
About.
【００１０】本発明の中空糸膜モジュールの構造は、中
空糸膜の外側から内側に濾過する外圧濾過型モジュール
に好ましく用いられる。外圧濾過型モジュールでは、中
空糸膜の両端の中空部は、両端が開口している構造でも
一方の中空糸膜の中空部が封止された片端開口型構造で
も良いが、実開昭６１−１０６３０７号に記載されてい
る様な、一方の中空糸膜端部が開口して、他端が封止さ
れているおり、且つ、封止された側の接着層に複数の貫
通口が設けられているモジュール構造が、エアーバブリ
ング運転により糸束間に堆積した懸濁物をモジュール外
に排出するのに好適である。貫通口の形状は、スリット
状、円形状、四角形、多角形、星形等のが使用可能であ
る。貫通口の数は、モジュールの直径や長さ、原水の供
給速度により異なるが、４個〜６０個の範囲が好まし
い。The structure of the hollow fiber membrane module of the present invention is preferably used for an external pressure filtration type module for filtering from the outside to the inside of the hollow fiber membrane. In the external pressure filtration type module, the hollow portions at both ends of the hollow fiber membrane may have a structure in which both ends are open or a one-end open type structure in which the hollow portion of one hollow fiber membrane is sealed. As described in No. 106307, one end of the hollow fiber membrane is open, the other end is sealed, and a plurality of through-holes are provided in an adhesive layer on the sealed side. This module structure is suitable for discharging the suspended matter accumulated between the yarn bundles by the air bubbling operation to the outside of the module. The shape of the through hole can be a slit, a circle, a square, a polygon, a star, or the like. The number of through holes varies depending on the diameter and length of the module and the supply speed of raw water, but is preferably in the range of 4 to 60.
【００１１】本発明に使用される仕切板は、モジュール
の切断断面方向から見て、放射状に中空糸膜束内に配置
されることが好ましく、形状としては、直線状、三つ又
状、十字状、５分割状、６分割状、８分割状が使用され
る。仕切板の材質は、使用する接着剤と同材質ないし
は、接着剤と接着し、且つ、接着剤と線膨張係数が近似
している材質が好ましい。仕切板の一端は、切断断面に
露出しても良いが、他端は、モジュールの内側の接着界
面から飛び出さずに接着層に埋設されている事が好まし
い。仕切板が、接着界面より飛び出していると濾過運転
中に中空糸膜と仕切板が擦れて中空糸膜が破損する場合
がある。The partition plate used in the present invention is preferably radially arranged in the hollow fiber membrane bundle when viewed from the cut section direction of the module, and may be linear, three-pronged, cross-shaped, or the like. A five-part, six-part, or eight-part form is used. The material of the partition plate is preferably the same material as the adhesive to be used or a material that adheres to the adhesive and has a linear expansion coefficient similar to that of the adhesive. One end of the partition plate may be exposed in the cut section, but the other end is preferably embedded in the adhesive layer without protruding from the adhesive interface inside the module. If the partition plate protrudes from the adhesive interface, the hollow fiber membrane may rub against the partition plate during the filtration operation, and the hollow fiber membrane may be damaged.
【００１２】本発明に使用される挿入棒の形状は、モジ
ュールの切断断面方向から見て、円形状が好ましいが、
三角、四角等の多角形状でも角が鋭利でなく、糸束内に
挿入する時、糸にキズを付けない形状であれば使用でき
る。挿入される棒の断面積は、１５ｍｍ2 〜３００ｍｍ
2 の範囲が好ましい。断面積が１５ｍｍ2 より小さいと
挿入する棒の本数が多くなりすぎ、作業が繁雑になる。
棒の断面積が３００ｍｍ2 より大きいと挿入する本数は
少なくなるが、ケース内での糸束の偏りを防ぎ分散性を
良くする効果も少ない。The shape of the insertion rod used in the present invention is preferably circular when viewed from the cut section direction of the module.
Even polygons such as triangles and squares can be used as long as the corners are not sharp and the yarn is not damaged when inserted into the yarn bundle. Sectional area of the inserted rod, 15 mm 2 to 300 mm
A range of 2 is preferred. If the cross-sectional area is smaller than 15 mm 2, the number of bars to be inserted becomes too large, and the work becomes complicated.
When the cross-sectional area of the rod is larger than 300 mm 2 , the number of inserted rods decreases, but the effect of preventing the yarn bundle from being biased in the case and improving the dispersibility is also small.
【００１３】挿入棒の本数は、モジュールの直径や、挿
入棒の断面積によるが、４本〜６０本の範囲が好まし
い。少なすぎると中空糸膜のモジュールケース内での分
散性が悪く偏りが抑えられず、濾過性能の低下をきた
し、多すぎると充填出来る中空糸膜本数が減少したり、
作業工程が煩雑になり生産性が低下する。挿入棒の材質
は、使用する接着剤と同材質ないしは、接着剤と接着
し、且つ、接着剤と線膨張係数が近似している材質が好
ましい。The number of insertion rods depends on the diameter of the module and the cross-sectional area of the insertion rods, but is preferably in the range of 4 to 60. If the amount is too small, the dispersibility of the hollow fiber membrane in the module case is bad and the bias cannot be suppressed, and the filtration performance is reduced.If the amount is too large, the number of hollow fiber membranes that can be filled decreases,
The work process becomes complicated and productivity is reduced. The material of the insertion rod is preferably the same material as the adhesive used, or a material that adheres to the adhesive and has a linear expansion coefficient similar to that of the adhesive.
【００１４】挿入棒の一端は、切断断面に露出しても良
いが、他端は、モジュールの内側の接着界面から飛び出
さずに接着層に埋設されている事が好ましい。挿入棒
が、接着界面より飛び出していると濾過運転中に中空糸
膜と挿入棒が擦れて中空糸膜が破損する場合がある。中
空糸膜束内の挿入棒は、中空糸膜がケース内で全体的に
分散して偏りが出来無いように糸束内に分散してセット
する。その時、挿入棒が対称形になるように配置する事
が糸束の偏りを抑えるのに好ましい。One end of the insertion rod may be exposed in the cut section, but the other end is preferably embedded in the adhesive layer without protruding from the adhesive interface inside the module. If the insertion rod protrudes from the adhesive interface, the hollow fiber membrane may rub against the insertion rod during the filtration operation, and the hollow fiber membrane may be damaged. The insertion rod in the hollow fiber membrane bundle is set dispersed in the yarn bundle so that the hollow fiber membrane is not entirely dispersed in the case and biased. At this time, it is preferable to arrange the insertion rod so as to be symmetrical in order to suppress the deviation of the yarn bundle.
【００１５】本発明に使用される円弧状板は、中空糸膜
束とモジュールケースの隙間に糸束全体を囲うように複
数個セットされるため、その厚さは隙間と同じか少し薄
い厚さで、ケースの内径に添う形状の板が好ましい。円
弧状板の形状は、円をほぼ２分割〜８分割した形状が使
用でき、２分割の円弧状板では、２個の円弧状板をセッ
トにし、８分割の円弧状板では、８個の円弧状板をセッ
トにしてモジュールに装着する。また、円弧状板とケー
スの隙間が小さすぎると接着剤が浸入出来ずに接着不良
が起きる場合があるので、円弧状板のケースと接する面
側に突起を設けて隙間が出来るようにしても良い。分割
されていない円状のものでは、接着剤が硬化収縮する時
に追従出来ずに接着剤との界面で剥離が発生する恐れが
ある。The plurality of arc-shaped plates used in the present invention are set so as to surround the entire yarn bundle in the gap between the hollow fiber membrane bundle and the module case, and the thickness thereof is equal to or slightly smaller than the gap. In this case, a plate having a shape conforming to the inner diameter of the case is preferable. As the shape of the arc-shaped plate, a shape obtained by substantially dividing a circle into two to eight can be used. In the case of a two-divided arc-shaped plate, two arc-shaped plates are set. A set of circular plates is attached to the module. In addition, if the gap between the arc-shaped plate and the case is too small, the adhesive may not be able to enter and poor adhesion may occur. Therefore, even if a protrusion is provided on the surface of the arc-shaped plate in contact with the case, a gap is formed. good. In the case of an undivided circular shape, there is a possibility that peeling may occur at the interface with the adhesive because the adhesive cannot follow when the adhesive cures and contracts.
【００１６】円弧状板を中空糸膜束とケースの隙間に装
着して中空糸膜端部を接着剤により接着することによ
り、接着剤が硬化する時に発生する発熱温度が直接ケー
スに達せず、円弧状板が熱の遮蔽板として機能してくれ
るためケースに掛かる温度を下げる事が出来る。そのた
め使用できるケースの素材として耐熱性の低い材料を使
うことが出来るようになり、ケース材質の選択の幅を広
げる事が可能になる。By mounting the arc-shaped plate in the gap between the hollow fiber membrane bundle and the case and bonding the ends of the hollow fiber membrane with an adhesive, the heat generated when the adhesive hardens does not directly reach the case. Since the arc-shaped plate functions as a heat shielding plate, the temperature applied to the case can be reduced. Therefore, a material having low heat resistance can be used as a material of a case that can be used, and the range of choice of the case material can be expanded.
【００１７】円弧状板の材質は、使用する接着剤と同一
材質ないしは、接着剤と接着し、且つ、接着剤と線膨張
係数が近似している材質が好ましい。円弧状板の一端
は、切断断面に露出しても良いが、他端は、モジュール
の内側の接着界面から飛び出さずに接着層に埋設されて
いる事が好ましい。円弧状板が接着界面より飛び出して
いると、濾過運転中に中空糸膜と円弧状板が擦れて中空
糸膜が破損する場合がある。The material of the arc-shaped plate is preferably the same material as the adhesive to be used, or a material that adheres to the adhesive and has a linear expansion coefficient similar to that of the adhesive. One end of the arc-shaped plate may be exposed in the cut section, but the other end is preferably embedded in the adhesive layer without protruding from the adhesive interface inside the module. If the circular plate protrudes from the bonding interface, the hollow fiber membrane may rub against the circular plate during the filtration operation, and the hollow fiber membrane may be damaged.
【００１８】本発明に使用される中空糸膜は、逆浸透
膜、限外濾過膜、精密濾過膜等の膜である。膜の材質
は、特に限定されないが、ポリアクリロニトリル、ポリ
スルホン、ポリエーテルスルホン、ポリエーテルケトン
類、ポリフェニレンサルファイド、ポリエチレン、ポリ
プロピレン、ポリブテン、ポリ４ーメチルペンテン、ポ
リフッ化ビニリデン、セルロース類、ポリアミド、ポリ
ビニルアルコール、ポリイミド、ポリテトラフルオロエ
チレン、エチレンーテトラフルオロエチレン共重合体等
の単独或いは、ブレンド、更には複合化による膜が挙げ
られる。中空糸膜の形状としては、通常、内径５０μｍ
〜３０００μｍで、内／外径比が０．３〜０．８の範囲
の膜が使用できる。The hollow fiber membrane used in the present invention is a membrane such as a reverse osmosis membrane, an ultrafiltration membrane and a microfiltration membrane. The material of the membrane is not particularly limited, but polyacrylonitrile, polysulfone, polyether sulfone, polyether ketones, polyphenylene sulfide, polyethylene, polypropylene, polybutene, poly 4-methylpentene, polyvinylidene fluoride, celluloses, polyamide, polyvinyl alcohol, polyimide , Polytetrafluoroethylene, ethylene-tetrafluoroethylene copolymer, etc., alone or as a blend, or as a composite. The shape of the hollow fiber membrane is usually 50 μm inside diameter.
A film having a thickness of ３3000 μm and an inner / outer diameter ratio in the range of 0.3-0.8 can be used.
【００１９】本発明で使用されるモジュールケースは、
直径が５０ｍｍ〜４００ｍｍで、特に１００ｍｍを越え
る場合に好ましく適用できる。モジュールの長さは、特
に制限されないが、３００ｍｍ〜３０００ｍｍである。
モジュールケースの材質は、特に限定されないが、ポリ
スルホン、ポリエーテルスルホン、ポリエチレン、ポリ
プロピレン、ポリブテン、ＡＢＳ樹脂、ポリ塩化ビニ
ル、ポリフッ化ビニリデン、ポリテトラフルオロエチレ
ン、ポリカーボネート、ポリエーテルケトン類、ポリフ
ェニレンエーテル、ポリフェニレンサルファイド、ガラ
ス繊維又は炭素繊維で補強したエポキシ樹脂等のプラス
チック類、ステンレス鋼、アルミニウム合金、チタン等
の金属類が挙げられる。The module case used in the present invention is:
It can be preferably applied when the diameter is 50 mm to 400 mm, especially when it exceeds 100 mm. The length of the module is not particularly limited, but is 300 mm to 3000 mm.
Although the material of the module case is not particularly limited, polysulfone, polyethersulfone, polyethylene, polypropylene, polybutene, ABS resin, polyvinyl chloride, polyvinylidene fluoride, polytetrafluoroethylene, polycarbonate, polyether ketones, polyphenylene ether, polyphenylene Examples include plastics such as sulfide, epoxy resin reinforced with glass fiber or carbon fiber, and metals such as stainless steel, aluminum alloy, and titanium.
【００２０】本発明に使用される接着剤は、エポキシ樹
脂、ウレタン樹脂、エポキシアクリレート樹脂等の内、
中空糸膜やケースや仕切板と液密的に接着可能な熱硬化
性の高分子が使用可能で、特に、強度の高いエポキシ樹
脂が好ましい。The adhesive used in the present invention includes epoxy resin, urethane resin, epoxy acrylate resin and the like.
A thermosetting polymer that can be liquid-tightly bonded to a hollow fiber membrane, a case, or a partition plate can be used, and an epoxy resin having high strength is particularly preferable.
【００２１】[0021]
【発明の実施の形態】以下、実施例により、本発明を更
に詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail by way of examples.
【００２２】[0022]
【実施例１】旭化成工業（株）社製のポリスルホン中空
糸限外濾過膜（内／外径：０．６／１．１ｍｍ、公称分
画分子量１０、０００）を８、２００本に束ねた。この
中空糸膜束の端部内に断面形状が図１に示す様な十字型
をしたエポキシ樹脂製の仕切板を配置した。さらに４つ
に分割された各糸束内に、図３に示す様な直径１１ｍｍ
の円柱状のエポキシ樹脂製の挿入棒を８本づづ、合計３
２本対称形になるように配置し、糸束端部外周を紐で縛
って固定した。この時、中空糸膜束端部の直径は、１４
４ｍｍであった。Example 1 8,200 polysulfone hollow fiber ultrafiltration membranes (inner / outer diameter: 0.6 / 1.1 mm, nominal molecular weight cut-off 10,000) manufactured by Asahi Kasei Corporation were bundled. . A cross-shaped epoxy resin partition plate having a cross-sectional shape as shown in FIG. 1 was disposed in the end of the hollow fiber membrane bundle. In each of the four bundles, the diameter is 11 mm as shown in FIG.
Eight cylindrical insertion rods made of epoxy resin, a total of 3
The two bundles were arranged so as to be symmetrical, and the outer periphery of the end portion of the yarn bundle was tied with a string and fixed. At this time, the diameter of the end of the hollow fiber membrane bundle is 14
4 mm.
【００２３】次に、内／外径：１５４／１６５ｍｍのパ
イプの両端に内／外径：１６８／１８６ｍｍのヘッダー
が接続され、側胴部にノズルを設けたポリスルホン製の
モジュールケースに、上記で用意した中空糸膜束を収納
し、エポキシ樹脂で遠心接着した。その後、不要な両側
端部を切断した。接着した後のモジュールケースのヘッ
ダー外径は、１８６ｍｍで接着前と変化しなかった。ま
た、接着部とケースの剥離や、接着部の亀裂の発生は見
られなかった。モジュールを解体したところ、接着部界
面での中空糸膜束外周とケースとの隙間は、最大で、１
４ｍｍだった。また、仕切板や挿入棒は、接着層に埋設
され接着界面には出ていなかった。Next, a polysulfone module case in which a header having an inner / outer diameter of 168/186 mm is connected to both ends of a pipe having an inner / outer diameter of 154/165 mm, and a nozzle is provided on a side body, The prepared hollow fiber membrane bundle was stored and centrifuged with an epoxy resin. Then, unnecessary side edges were cut off. The outer diameter of the header of the module case after bonding was 186 mm, which was the same as before the bonding. Also, no peeling of the bonded portion from the case and no generation of cracks in the bonded portion were observed. When the module was disassembled, the gap between the outer periphery of the hollow fiber membrane bundle and the case at the interface of the bonding portion was a maximum of 1
It was 4 mm. Further, the partition plate and the insertion rod were buried in the adhesive layer and did not appear at the adhesive interface.
【００２４】[0024]
【実施例２】旭化成工業（株）社製のＰＶＤＦ中空糸精
密濾過膜（内／外径：０．７／１．３ｍｍ、公称孔径
０．１μｍ）を６、４００本に束ねた。この中空糸膜束
の端部内に断面形状が図２に示す様な８分割型をしたエ
ポキシ樹脂製の仕切板を配置した。さらに８分割された
各糸束内に図３に示す様な、直径１１ｍｍの円柱状のエ
ポキシ樹脂製の挿入棒を４本づづ、合計３２本対称形に
なるように配置し、糸束端部外周を紐で縛って固定し
た。この時、中空糸膜束端部の直径は、１４４ｍｍであ
った。Example 2 6,400 PVDF hollow fiber microfiltration membranes (inner / outer diameter: 0.7 / 1.3 mm, nominal pore diameter 0.1 μm) manufactured by Asahi Kasei Corporation were bundled. An epoxy resin partition plate having an eight-segment sectional shape as shown in FIG. 2 was arranged in the end of the hollow fiber membrane bundle. Further, in each of the eight divided yarn bundles, four cylindrical insertion rods made of epoxy resin having a diameter of 11 mm as shown in FIG. The outer periphery was tied with a string and fixed. At this time, the diameter of the end of the hollow fiber membrane bundle was 144 mm.
【００２５】次に、内／外径：１５４／１６５ｍｍのパ
イプの両端に内／外径：１６８／１９０ｍｍのヘッダー
が接続され、側胴部にノズルを設けたポリ塩化ビニル製
のモジュールケースに、上記で用意した中空糸膜束を収
納し、さらに、ケースと中空糸膜束の隙間に、図４に示
す様な、内／外径の曲率直径：１４６／１６６ｍｍで８
分割のエポキシ樹脂製の円弧状板を８枚セットし、エポ
キシ樹脂で遠心接着した。その後、不要な両側端部を切
断し、図５に示す様な切断面を有するモジュールを作成
した。Next, a module case made of polyvinyl chloride in which a header having an inner / outer diameter of 168/190 mm is connected to both ends of a pipe having an inner / outer diameter of 154/165 mm and a nozzle is provided on a side body portion, The above-prepared hollow fiber membrane bundle is stored, and a gap between the inner and outer diameters as shown in FIG.
Eight split epoxy resin arc plates were set and centrifuged with epoxy resin. Then, unnecessary side edges were cut off to produce a module having a cut surface as shown in FIG.
【００２６】接着した後のモジュールケースのヘッダー
外径は、１８９．３ｍｍであり、収縮率は、問題になら
ないくらい小さかった。また、接着部とケースの剥離や
接着部の亀裂の発生は見られなかった。モジュールを解
体したところ、接着部界面での中空糸膜束外周とケース
との隙間は、最大１２ｍｍだった。また、仕切板や挿入
棒や円弧状板は接着層に埋設され接着界面には出ていな
かった。The outer diameter of the header of the module case after bonding was 189.3 mm, and the shrinkage was so small that it did not matter. In addition, no peeling of the bonded portion from the case and no generation of a crack in the bonded portion were observed. When the module was disassembled, the maximum gap between the outer periphery of the hollow fiber membrane bundle and the case at the interface of the bonding portion was 12 mm. Further, the partition plate, the insertion rod, and the arc-shaped plate were buried in the adhesive layer and did not appear at the adhesive interface.
【００２７】[0027]
【比較例１】旭化成工業（株）社製のポリスルホン中空
糸限外濾過膜（内／外径：０．６／１．１ｍｍ、公称分
画分子量１０、０００）を８、２００本に束ねた。この
中空糸膜束の端部内に断面形状が図１に示す様な十字型
をしたエポキシ樹脂製の仕切板を配置し、糸束端部外周
を紐で縛って固定した。この時、中空糸膜束端部の直径
は、１３８ｍｍであった。Comparative Example 1 A polysulfone hollow fiber ultrafiltration membrane (inner / outer diameter: 0.6 / 1.1 mm, nominal molecular weight cut off 10,000) manufactured by Asahi Kasei Corporation was bundled into 8,200 pieces. . A cross-shaped epoxy resin partition plate having a cross-sectional shape as shown in FIG. 1 was arranged in the end of the hollow fiber membrane bundle, and the outer periphery of the end of the yarn bundle was tied with a string and fixed. At this time, the diameter of the end of the hollow fiber membrane bundle was 138 mm.
【００２８】次に、実施例２に記載されているポリ塩化
ビニル製のモジュールケースに、上記で用意した中空糸
膜束を収納し、エポキシ樹脂で遠心接着した。その後、
不要な両側端部を切断した。接着した後のモジュールケ
ースのヘッダー外径は、１８７、８ｍｍであり、１％を
越える収縮率になった。また、接着部とケースの剥離や
接着部の亀裂の発生は見られなかった。モジュールを解
体したところ、接着部界面での中空糸膜束外周とケース
との隙間は、最大２４ｍｍであった。Next, the hollow fiber membrane bundle prepared as described above was housed in the module case made of polyvinyl chloride described in Example 2, and was centrifugally bonded with epoxy resin. afterwards,
Unnecessary both side edges were cut. The outer diameter of the header of the module case after bonding was 187, 8 mm, and the shrinkage exceeded 1%. In addition, no peeling of the bonded portion from the case and no generation of a crack in the bonded portion were observed. When the module was disassembled, the maximum gap between the outer periphery of the hollow fiber membrane bundle and the case at the interface of the bonding portion was 24 mm.
【００２９】[0029]
【発明の効果】本発明により、汎用素材からなるモジュ
ールケースでも大型化（モジュールの直径を大きくす
る）が容易であり、且つ、中空糸膜がケース内で、直径
方向に全体的に分散して偏りが無い中空糸膜モジュール
を容易に生産することが可能となる。According to the present invention, it is easy to increase the size (to increase the diameter of the module) even in a module case made of a general-purpose material, and the hollow fiber membrane is dispersed in the case in the diameter direction as a whole. It is possible to easily produce a hollow fiber membrane module without bias.
【図面の簡単な説明】[Brief description of the drawings]
【図１】平板が４方に放射状に配置された十字型の仕切
板の例を示す断面模式図。FIG. 1 is a schematic cross-sectional view showing an example of a cross-shaped partition plate in which flat plates are radially arranged in four directions.
【図２】平板が８方に放射状に配置された８分割型の仕
切板の例を示す断面模式図。FIG. 2 is a schematic cross-sectional view showing an example of an 8-partitioning partition plate in which flat plates are radially arranged in eight directions.
【図３】挿入棒の一例を示す断面及び側面模式図。FIG. 3 is a schematic cross-sectional and side view showing an example of an insertion rod.
【図４】８分割型の円弧状板の例を示す斜視図。FIG. 4 is a perspective view showing an example of an eight-part arcuate plate.
【図５】実施例２のモジュールの、中空糸膜の長さ方向
に垂直な切断面を表す模式図。FIG. 5 is a schematic view showing a cross section perpendicular to the length direction of the hollow fiber membrane of the module of Example 2.
１．モジュールケースヘッダー ２．中空糸膜 ３．仕切板 ４．挿入棒 ５．円弧状板 1. Module case header 2. 2. hollow fiber membrane Partition plate 4. Insert bar 5. Arc-shaped plate
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4D006 GA06 GA07 HA02 HA03 HA19 JA25B JA25C JA29A JA29C JA30A JA30C JB04 JB06 KA43 KC03 MA01 MA06 MA31 MA33 MC11 MC22 MC23 MC29X MC30 MC33 MC39 MC47 MC54 MC58 MC61 MC62X MC63 MC83 PA01 PB03 PB04 PB05 PB08 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4D006 GA06 GA07 HA02 HA03 HA19 JA25B JA25C JA29A JA29C JA30A JA30C JB04 JB06 KA43 KC03 MA01 MA06 MA31 MA33 MC11 MC22 MC23 MC29X MC30 MC33 MC39 MC47 MC54 MC58 MC61 MC62X MC03 MC83 PA01B PB08
Claims (2)
収納され、両端が接着剤により接着固定された中空糸膜
モジュールにおいて、 少なくとも一方の接着固定部の中空糸膜束内に、仕切
板、及び、挿入棒がセットされ、接着剤により中空糸膜
と一体に接着固定されている事を特徴とする中空糸膜モ
ジュール。1. A hollow fiber membrane module in which a number of hollow fiber membranes are housed in a module case and both ends are adhesively fixed by an adhesive, wherein at least one of the adhesive fixing portions has a partition plate, And a hollow fiber membrane module, wherein an insertion rod is set and fixed integrally with the hollow fiber membrane by an adhesive.
収納され、両端が接着剤により接着固定された中空糸膜
モジュールにおいて、 少なくとも一方の接着固定部の中空糸膜束内に、仕切
板、及び、挿入棒がセットされ、且つ、中空糸膜束とケ
ースの隙間に複数個の円弧状板がセットされ接着剤によ
り中空糸膜と一体に接着固定されている事を特徴とする
中空糸膜モジュール。2. A hollow fiber membrane module in which a number of hollow fiber membranes are accommodated in a module case and both ends are adhesively fixed by an adhesive, wherein at least one of the adhesive fixing portions has a partition plate, And a hollow fiber membrane, wherein an insertion rod is set, and a plurality of arc-shaped plates are set in a gap between the hollow fiber membrane bundle and the case, and are integrally fixed to the hollow fiber membrane with an adhesive. module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36666898A JP4012640B2 (en) | 1998-12-24 | 1998-12-24 | Hollow fiber membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36666898A JP4012640B2 (en) | 1998-12-24 | 1998-12-24 | Hollow fiber membrane module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000185220A true JP2000185220A (en) | 2000-07-04 |
| JP4012640B2 JP4012640B2 (en) | 2007-11-21 |
Family
ID=18487355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36666898A Expired - Fee Related JP4012640B2 (en) | 1998-12-24 | 1998-12-24 | Hollow fiber membrane module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4012640B2 (en) |
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-
1998
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