JPH04284834A - Preparation of hollow yarn membrane module - Google Patents
Preparation of hollow yarn membrane moduleInfo
- Publication number
- JPH04284834A JPH04284834A JP7360791A JP7360791A JPH04284834A JP H04284834 A JPH04284834 A JP H04284834A JP 7360791 A JP7360791 A JP 7360791A JP 7360791 A JP7360791 A JP 7360791A JP H04284834 A JPH04284834 A JP H04284834A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- housing
- fiber membrane
- fixing member
- liquid resin
- 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
- 239000012528 membrane Substances 0.000 title claims abstract description 105
- 238000005520 cutting process Methods 0.000 claims abstract description 15
- 239000012510 hollow fiber Substances 0.000 claims description 94
- 238000000034 method Methods 0.000 claims description 32
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 229920005989 resin Polymers 0.000 abstract description 61
- 239000011347 resin Substances 0.000 abstract description 61
- 239000007788 liquid Substances 0.000 abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 8
- 238000001914 filtration Methods 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012994 photoredox catalyst Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011342 resin composition Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、浄水器等に用いる中空
糸膜モジュールの製造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the manufacture of hollow fiber membrane modules used in water purifiers and the like.
【０００２】0002
【従来の技術】近年、膜面を介した物質交換機能や流体
分離能力を有する中空糸膜モジュールが、医療機器や気
液分離処理用機器など多くの分野において濾過や物質交
換など種々の用途に用いられるようになってきた。特に
、最近の健康管理ブーム等の社会的な背景から家庭用の
浄水器等にも普及するなど広い範囲で利用されている。[Prior Art] In recent years, hollow fiber membrane modules that have material exchange functions and fluid separation capabilities through the membrane surface have been used for various purposes such as filtration and material exchange in many fields such as medical equipment and gas-liquid separation processing equipment. It has come to be used. In particular, due to the social background such as the recent health care boom, it has become widely used in household water purifiers and the like.
【０００３】中空糸膜モジュールの代表的構造としては
、筒状のハウジング内に多数の中空糸膜を収束して収納
し、各中空糸膜の端部を開口状態でハウジングの端部に
樹脂等の固定部材により固定して、各中空糸膜の中空部
のハウジング外部への開口と、ハウジング内の各中空糸
膜の外周壁と接触する領域とを固定部材により仕切った
構造を挙げることができる。A typical structure of a hollow fiber membrane module is that a large number of hollow fiber membranes are housed in a cylindrical housing, and the ends of each hollow fiber membrane are left open and a resin or the like is placed at the end of the housing. Examples include a structure in which the opening of the hollow part of each hollow fiber membrane to the outside of the housing and the area in contact with the outer peripheral wall of each hollow fiber membrane in the housing are partitioned off by the fixing member. .
【０００４】中空糸膜のハウジング内への固定形態とし
ては、中空糸膜の両端を開口状態で固定する方法と、中
空糸膜の一端を封止し、他端を開口状態で固定する方法
とがあり、中空糸膜は、直線状、Ｕ字状等の形状に固定
される。There are two methods for fixing the hollow fiber membrane in the housing: one method is to fix the hollow fiber membrane in an open state at both ends, and the other is to seal one end of the hollow fiber membrane and fix the other end in an open state. The hollow fiber membrane is fixed in a linear, U-shaped, etc. shape.
【０００５】一般に、多孔質中空糸濾過膜は、平膜に比
べ膜面積を大きくとることが可能であり、コンパクトな
形状にまとめることができるという利点を有する。これ
を濾過膜として使用する場合には、被処理液を中空糸膜
の外周壁から供給し、膜壁により濾過された液を中空糸
膜の中空部を通して中空部の開口端から取り出すのが一
般的である。In general, porous hollow fiber filtration membranes have the advantage that they can have a larger membrane area than flat membranes and can be assembled into a compact shape. When using this as a filtration membrane, the liquid to be treated is generally supplied from the outer peripheral wall of the hollow fiber membrane, and the liquid filtered by the membrane wall is taken out through the hollow part of the hollow fiber membrane from the open end of the hollow part. It is true.
【０００６】従って、濾液の取り出し口となる中空糸膜
の開口端は、上述のように固定部材に固定され、被処理
液の取り入れ面である中空糸膜の外周壁と接触する領域
と隔離される必要がある。[0006] Therefore, the open end of the hollow fiber membrane, which serves as the filtrate outlet, is fixed to the fixing member as described above, and is isolated from the area in contact with the outer peripheral wall of the hollow fiber membrane, which is the intake surface for the liquid to be treated. It is necessary to
【０００７】ハウジング内への中空糸膜束の固定方法と
しては、所定の長さに切断した中空糸膜の多数をハウジ
ング内に収束してセットし、各中空糸膜の固定すべき端
部の開口を仮固定等の手段によって閉塞させ、そこに固
定部材形成用の液状樹脂を供給、充填し、これを固化さ
せて固定部材を形成し、最後にこの固定部材を所定位置
でハウジングの周壁ごと切断して、中空糸膜の仮固定で
閉塞させた部分を固定部材の切り離し部分とともに取り
去り、残された固定部材の切断端面に各中空糸膜の開口
端を形成する方法がある。As a method for fixing a bundle of hollow fiber membranes in a housing, a large number of hollow fiber membranes cut to a predetermined length are set together in a housing, and the ends of each hollow fiber membrane to be fixed are fixed. The opening is closed by means such as temporary fixing, liquid resin for forming a fixing member is supplied and filled, this is solidified to form a fixing member, and finally this fixing member is attached to the peripheral wall of the housing at a predetermined position. There is a method in which the hollow fiber membranes are cut and the temporarily closed portion of the hollow fiber membrane is removed together with the cut-off portion of the fixing member, and the open end of each hollow fiber membrane is formed on the cut end surface of the remaining fixing member.
【０００８】この方法において、樹脂固定する前に中空
糸膜の開口端を仮固定等によって閉塞させておくのは、
液状樹脂で中空糸膜を固定する際に液状樹脂が中空糸膜
の開口端から中空部内に侵入することによる目詰りを防
止するためのもので、必須の工程である。[0008] In this method, the opening end of the hollow fiber membrane is closed by temporary fixation etc. before being fixed with the resin.
This is an essential step to prevent clogging caused by liquid resin entering the hollow portion from the open end of the hollow fiber membrane when fixing the hollow fiber membrane with liquid resin.
【０００９】しかしながら、この中空糸膜の固定される
側の開口端を閉塞端とする作業は、中空糸膜モジュール
の生産工程を煩雑なものとする一因となっており、また
完全な閉塞がむずかしく、中空糸膜モジュールの量産化
を図る上で解決すべき問題点となっていた。[0009] However, this process of making the open end of the fixed hollow fiber membrane into a closed end is one of the causes of complicating the production process of hollow fiber membrane modules. This was a difficult problem that needed to be resolved in order to mass produce hollow fiber membrane modules.
【００１０】そこで、この問題点の解決方法として、中
空糸膜を綛状に収束し、樹脂固定部材形成領域内に中空
糸膜の連続部分を配置することで、中空糸膜の開口端か
らの液状樹脂の侵入生じさせないように樹脂固定を行う
ことで、上述の閉塞工程を省略する方法が提供されてい
る。[0010] As a solution to this problem, the hollow fiber membranes are converged into a skein shape and a continuous portion of the hollow fiber membranes is arranged within the resin fixing member formation area, thereby preventing the flow from the open end of the hollow fiber membranes. A method has been proposed in which the above-mentioned closing step is omitted by fixing the resin to prevent the liquid resin from entering.
【００１１】一方、ハウジング内への液状樹脂の注入方
法としては、遠心を利用した方法が利用されている。On the other hand, as a method for injecting liquid resin into the housing, a method using centrifugation is used.
【００１２】しかしながら、この遠心を利用する方法に
おいては、一つの筒状ハウジングに対して少なくとも一
つの樹脂液溜めをその側方に配置して遠心機内にセット
するため、ハウジングの中空糸膜束端部が固定される閉
鎖端側がセットされる遠心機の部分に、より多くのスペ
ースが要求される。However, in this method using centrifugation, at least one resin reservoir is arranged on the side of one cylindrical housing and set in the centrifuge. More space is required in the part of the centrifuge where the closed end side to which the part is fixed is set.
【００１３】さらに、この方法では、ハウジング内に供
給される液状樹脂の量を、液状樹脂溜め内の液状樹脂の
液面とハウジング端部内の液状樹脂の液面とが最終的に
遠心力の作用方向において同一レベルとなるようにこれ
らを配置することで調整しているため、樹脂固定終了時
に液状樹脂溜め内のみならず、液状樹脂溜めと筒状体端
部とを連通するチューブ内全体にも無駄となる樹脂が残
存固化する。Furthermore, in this method, the amount of liquid resin supplied into the housing is determined by the effect of centrifugal force on the liquid level of the liquid resin in the liquid resin reservoir and the liquid level of the liquid resin in the end of the housing. Since these are adjusted by arranging them so that they are at the same level in the direction, when the resin fixation is completed, the damage is done not only inside the liquid resin reservoir, but also throughout the tube that communicates the liquid resin reservoir and the end of the cylindrical body. The wasted resin remains and solidifies.
【００１４】従って、上述の遠心力を利用した中空糸膜
束の樹脂固定方法は、生産効率の向上という点からなお
改善すべき課題を有するものといえる。[0014] Therefore, it can be said that the above-mentioned method of fixing resin on a hollow fiber membrane bundle using centrifugal force still has problems to be improved from the point of view of improving production efficiency.
【００１５】また、上述の方法では、ハウジングの中空
糸膜束端部が固定される閉鎖端の側面に液状樹脂溜めと
連通するチューブの開口を設け、そこから該閉鎖端内に
液状樹脂が中空糸膜束の側面に向かって供給される。従
って、中空糸膜の筒状体内での均一分散性が乱されて、
均一な中空糸膜の分散状態での樹脂固定が困難となる場
合もあった。[0015] Furthermore, in the above method, an opening of a tube communicating with a liquid resin reservoir is provided on the side surface of the closed end to which the end of the hollow fiber membrane bundle of the housing is fixed, and the liquid resin is supplied from the hollow end into the closed end. It is fed towards the side of the thread bundle. Therefore, the uniform dispersion of the hollow fiber membrane within the cylindrical body is disturbed,
In some cases, it was difficult to fix the resin in a uniformly dispersed state of the hollow fiber membrane.
【００１６】以上述べた遠心力を利用する中空糸膜束端
部の樹脂固定方法における問題点を解決するための方法
として、例えば特開平１−２８４３０５号公報には、両
端が開口する筒状ハウジングの一方の開口端にキャップ
を装着して閉鎖端とし、該閉鎖端内に中空糸膜束の固定
すべき端部が位置するように中空糸膜を収束、収納し、
開口端部側から液状樹脂供給用のポット（液状樹脂溜め
）に接続された液状樹脂供給管をハウジングの中心軸に
添って、その先端が閉鎖端内に位置するように挿入し、
その状態で開口端にセットしたポットから液状樹脂を遠
心力を利用して閉鎖端部内へ供給して中空糸膜の樹脂固
定を行う方法が開示されている。[0016] As a method for solving the problems in the resin fixing method for the ends of hollow fiber membrane bundles using centrifugal force as described above, for example, Japanese Patent Application Laid-Open No. 1-284305 discloses a cylindrical housing that is open at both ends. A cap is attached to one open end of the hollow fiber membrane to make it a closed end, and the hollow fiber membranes are converged and housed so that the end to be fixed of the hollow fiber membrane bundle is located within the closed end,
Insert the liquid resin supply pipe connected to the liquid resin supply pot (liquid resin reservoir) from the open end side along the central axis of the housing so that its tip is located within the closed end,
A method has been disclosed in which liquid resin is supplied from a pot set at the open end into the closed end using centrifugal force to fix the resin on the hollow fiber membrane.
【００１７】この方法によれば、ポットがハウジング開
口端部側にセットされるので、先に述べた樹脂固定方法
のように遠心機内のハウジング側方に液状樹脂溜めのた
めの余分なスペースを取る必要がなくなる。According to this method, the pot is set on the open end side of the housing, so unlike the resin fixing method described above, extra space is required on the side of the housing in the centrifuge for storing the liquid resin. There will be no need.
【００１８】また、ポット内には必要量の液状樹脂が充
填され、その全てがハウジングの閉鎖端部内に供給され
るので、樹脂がポットや液状樹脂供給管内の樹脂固定部
材以外の部分で残存固化して無駄になることもない。Furthermore, since the required amount of liquid resin is filled in the pot and all of it is supplied into the closed end of the housing, the resin remains and solidifies in the pot and in the liquid resin supply pipe other than the resin fixing member. It won't go to waste.
【００１９】しかも、閉鎖端部内の中央に位置する液状
樹脂供給管５の先端から閉鎖部材内壁方向に向けて液状
樹脂が供給されるので、中空糸膜束を構成する各中空糸
膜の均一分散性がみだされることがなく、また、樹脂固
定部材の厚さをほぼ均一なものとすることができる。Furthermore, since the liquid resin is supplied from the tip of the liquid resin supply pipe 5 located at the center of the closed end toward the inner wall of the closing member, each hollow fiber membrane constituting the hollow fiber membrane bundle is uniformly dispersed. Moreover, the thickness of the resin fixing member can be made substantially uniform.
【００２０】[0020]
【発明が解決しようとする課題】近年の健康管理ブーム
によるきれいな水に対する感心の高まりやグルメブーム
による美味しい水の追及などによる浄水器、特に水道等
の蛇口に直結するタイプの家庭用浄水器等に用いる小型
の中空糸膜モジュールへの需要が急増しており、これに
十分に対応するために中空糸膜モジュール、特に小型中
空糸膜モジュールの生産性を向上させる必要が生じてい
る。[Problem to be solved by the invention] Due to the recent health care boom, which has led to increased interest in clean water, and the gourmet boom, which has led to the pursuit of delicious water, water purifiers, especially household water purifiers that connect directly to taps, etc. The demand for small-sized hollow fiber membrane modules to be used is rapidly increasing, and in order to fully meet this demand, it is necessary to improve the productivity of hollow fiber membrane modules, especially small-sized hollow fiber membrane modules.
【００２１】しかしながら、例えば、上述の遠心を利用
する樹脂固定方法を採用した従来の中空糸膜モジュール
の製造方法では、液状樹脂のハウジング内への注入時、
および最終的に中空糸膜の開口端を形成する際における
樹脂固定部の切断時に、その都度キャップをハウジング
端部から着脱するという煩雑な操作が必要であるなど、
より高い生産性を得る上でなお不十分であるといえる。However, for example, in the conventional hollow fiber membrane module manufacturing method that employs the above-mentioned resin fixing method using centrifugation, when liquid resin is injected into the housing,
Also, when cutting the resin fixing part to finally form the open end of the hollow fiber membrane, it is necessary to perform a complicated operation of attaching and detaching the cap from the housing end each time.
It can be said that this is still insufficient to obtain higher productivity.
【００２２】本発明は、以上のような従来の中空糸膜モ
ジュールの製造方法における問題に鑑みなされたもので
あり、その目的は、中空糸膜モジュールの生産性の向上
に有効な方法を提供することにある。The present invention was made in view of the problems in the conventional hollow fiber membrane module manufacturing method as described above, and its purpose is to provide an effective method for improving the productivity of hollow fiber membrane modules. There is a particular thing.
【００２３】[0023]
【課題を解決するための手段】本発明の中空糸膜モジュ
ールの製造方法は、筒状ハウジング内に中空糸膜束を固
定部材により固定し、該固定部材を該筒状ハウジングの
周壁とともに切断することによる切断端面への前記中空
糸膜束を構成する中空糸膜の開口端の形成過程を含む中
空糸膜モジュールの製造方法において、前記筒状ハウジ
ングが、一方が開口端であり、他方が閉鎖端である一体
成形された筒状を有し、該筒状ハウジングの閉鎖端内に
前記中空糸膜束の固定すべき部分を配置して、前記固定
部材による固定及び切断による中空糸膜の開口端の形成
を行うことを特徴とする。[Means for Solving the Problems] A method for manufacturing a hollow fiber membrane module of the present invention includes fixing a hollow fiber membrane bundle within a cylindrical housing by a fixing member, and cutting the fixing member together with the peripheral wall of the cylindrical housing. In the method for manufacturing a hollow fiber membrane module, the method includes the step of forming an open end of the hollow fiber membranes constituting the hollow fiber membrane bundle on a cut end surface, wherein the cylindrical housing has an open end at one end and a closed end at the other end. A portion of the hollow fiber membrane bundle to be fixed is arranged within the closed end of the cylindrical housing, and the hollow fiber membrane is fixed by the fixing member and cut to open the hollow fiber membrane. It is characterized by forming an edge.
【００２４】本発明の中空糸膜モジュールの製造方法に
よれば、より簡略化された工程による、コンパクトな状
態での中空糸膜開口端のハウジングへの固定が可能とな
り、生産性良く中空糸膜モジュールを製造できる。According to the method for manufacturing a hollow fiber membrane module of the present invention, it is possible to fix the open end of the hollow fiber membrane to the housing in a compact state through a more simplified process, and the hollow fiber membrane can be manufactured with high productivity. Modules can be manufactured.
【００２５】以下、図面を参照しつつ本発明について更
に詳細に説明する。The present invention will be explained in more detail below with reference to the drawings.
【００２６】図１は、本発明の方法の一例において、固
定部材の切断前の中空糸膜束を固定部材により固定した
状態をハウジングの縦断面として示す図である。FIG. 1 is a longitudinal cross-sectional view of a housing showing a state in which a hollow fiber membrane bundle is fixed by a fixing member before the fixing member is cut in an example of the method of the present invention.
【００２７】本発明に用いる筒状ハウジング１は、中空
糸膜モジュールの本体を構成する部分である開口端を有
する筒状部１ａと、後述の切断工程において切り落とさ
れる閉鎖端形成部１ｂとからなり、一体成形により得ら
れる。The cylindrical housing 1 used in the present invention consists of a cylindrical portion 1a having an open end, which constitutes the main body of the hollow fiber membrane module, and a closed end forming portion 1b which is cut off in the cutting process described below. , obtained by integral molding.
【００２８】筒状ハウジング１の材質としては、中空糸
膜束２を保護し、かつ切断可能なものであれば良く、成
形性や切断時のクラックなどの切断不良部を生じないと
いう観点から、ＡＢＳ樹脂、ＡＳ樹脂、ＰＣ樹脂、ＭＭ
Ａ樹脂等の弾性を有する材質のものが好ましい。The material of the cylindrical housing 1 may be any material that protects the hollow fiber membrane bundle 2 and can be cut, and from the viewpoint of moldability and not causing defects in cutting such as cracks during cutting, ABS resin, AS resin, PC resin, MM
Preferably, the material is made of an elastic material such as A resin.
【００２９】なお、図示した例では、閉鎖端形成部１ｂ
の肉厚が筒状部１ａよりも薄く成形されているが、これ
に限定されない。しかしながら、ハウジングの切断性を
考慮した場合、一般に、切断部位（例えばＡ−Ａ線での
切断）にあるハウジングの周壁の厚さは、より薄いほど
良いが、筒状部１ａの厚さを薄くするのに強度等の面か
ら限界がある場合には、閉鎖端形成部１ｂの機能を損な
わない範囲内で、少なくとも切断部位の厚さを薄く成形
すると良い。また、閉鎖端形成部１ｂは切断工程におい
て切り捨てられるので、材料の有効利用という点からは
、切断部位と同様に肉薄で形成すると良い。In the illustrated example, the closed end forming portion 1b
Although the wall thickness of the cylindrical portion 1a is thinner than that of the cylindrical portion 1a, the thickness is not limited thereto. However, when considering the cuttability of the housing, it is generally better to make the peripheral wall of the housing thinner at the cutting site (for example, cutting along line A-A). If there is a limit in terms of strength or the like, it is preferable to reduce the thickness of at least the cut portion within a range that does not impair the function of the closed end forming portion 1b. Further, since the closed end forming portion 1b is cut away in the cutting process, from the point of view of effective use of material, it is preferable to form it with a thin wall like the cut portion.
【００３０】ハウジング１内へ挿入される中空糸膜２の
種類、形状は特に限定されず、製造する中空糸膜モジュ
ールの所望の機能に応じて選択され、例えば、ポリエチ
レン、ポリビニルアルコール、ポリスルホン、ポリプロ
ピレン等の多孔質中空糸膜などが利用できる。中空糸膜
２の収束形状としては、直線状、Ｕ字状、綛状、連続折
り畳み状等種々の形状とすることができ、その中空糸膜
モジュール内での固定形状に応じて選択される。なお、
先に述べた中空糸膜の開口端の閉塞工程を省略できると
いう点からは、綛状や連続折り畳み状の収束形状を採用
するのが好ましい。図１は、連続する１本の中空糸膜を
綛状に収束した場合を示す。The type and shape of the hollow fiber membrane 2 inserted into the housing 1 are not particularly limited, and are selected depending on the desired function of the hollow fiber membrane module to be manufactured. For example, polyethylene, polyvinyl alcohol, polysulfone, polypropylene Porous hollow fiber membranes such as the following can be used. The convergence shape of the hollow fiber membrane 2 can be various shapes such as a straight line, a U-shape, a comb shape, and a continuous folded shape, and is selected depending on the shape to be fixed within the hollow fiber membrane module. In addition,
From the viewpoint of omitting the step of closing the open ends of the hollow fiber membranes described above, it is preferable to adopt a convergent shape such as a comb shape or a continuous fold shape. FIG. 1 shows a case in which one continuous hollow fiber membrane is converged into a comb shape.
【００３１】ハウジング１内に中空糸膜２を収束して挿
入した状態で、液状樹脂供給用のポット３に接続された
液状樹脂注入管４をハウジングの中心軸に添って、中空
糸膜２の束の中央に、その先端部が固定部材５の形成領
域内に達するように挿入する。液状樹脂注入管４の管径
は液状樹脂の粘度等を考慮して適宜決めることができる
。また、その管長は、その先端部が固定部材５の切断部
位（Ａ−Ａ線）を超えない範囲内でできるだけ長くする
のが効果的である。With the hollow fiber membranes 2 converged and inserted into the housing 1, the liquid resin injection pipe 4 connected to the pot 3 for supplying liquid resin is inserted along the central axis of the housing. It is inserted into the center of the bundle so that its tip reaches into the region where the fixing member 5 is formed. The diameter of the liquid resin injection tube 4 can be appropriately determined in consideration of the viscosity of the liquid resin and the like. Further, it is effective to make the length of the tube as long as possible within a range where the tip end does not exceed the cutting site (A-A line) of the fixing member 5.
【００３２】ポット３内に固定部材５の形成に必要な量
の液状樹脂等の固定部材形成用の材料を充填した状態で
、これを遠心機にセットし、遠心力を矢印Ｂの方向にか
けることによって、ポット３内の液状樹脂をハウジング
１の閉鎖端５内に注入、固化させることによって固定部
材５を形成する。[0032] With the pot 3 filled with the amount of material for forming the fixing member such as liquid resin necessary for forming the fixing member 5, this is set in a centrifuge and centrifugal force is applied in the direction of arrow B. Accordingly, the fixing member 5 is formed by injecting the liquid resin in the pot 3 into the closed end 5 of the housing 1 and solidifying it.
【００３３】固定部材５形成用の材料としては、種々の
樹脂組成物などが利用でき、例えばウレタン樹脂、不飽
和ポリエステル樹脂、エポキシ樹脂、シリコーン樹脂等
の樹脂固定部材形成用として公知の種々の樹脂が利用で
き、適当な液状組成物としてポット３に充填して用いる
ことができる。Various resin compositions can be used as the material for forming the fixing member 5, such as various resins known for forming the resin fixing member, such as urethane resin, unsaturated polyester resin, epoxy resin, and silicone resin. can be used and filled into the pot 3 as a suitable liquid composition.
【００３４】次に、形成された固定部材５をＡ−Ａ線に
添って切断して、その切断端面に中空糸膜の開口端を形
成し、中空糸膜モジュールを得ることができる。[0034] Next, the formed fixing member 5 is cut along the line A-A, and the open end of the hollow fiber membrane is formed on the cut end surface, thereby obtaining a hollow fiber membrane module.
【００３５】[0035]
【実施例】実施例１
内径４０ｍｍ、全長１００ｍｍ、筒状部（１ａ）の周壁
厚２ｍｍ、閉鎖端形成部（１ｂ）の長さ１０ｍｍ、厚さ
０．７ｍｍの一体成形された図１に示すような構成のポ
リカーボネート製筒状ハウジングの一方の開口端から、
両端が開口した１本の連続した多孔質ポリエチレン中空
糸膜（長さ９５ｍｍ、外径３８０μｍ、膜厚５５μｍ、
平均孔径０．１μｍ、）を綛状に束ねて、その両開口端
が樹脂固定部に位置するように収納し、ハウジングの開
口端側に更にウレタン樹脂形成用液状組成物（１７ｍｌ
）を充填したポットを、ポットから伸びる液状樹脂供給
管の先端が切断部位の手前に位置するように装着し、中
空糸膜モジュール形成用セットを得た。[Example] Example 1 An integrally molded product having an inner diameter of 40 mm, a total length of 100 mm, a circumferential wall thickness of the cylindrical part (1a) of 2 mm, and a closed end forming part (1b) of a length of 10 mm and a thickness of 0.7 mm is shown in FIG. From one open end of the polycarbonate cylindrical housing configured as follows,
One continuous porous polyethylene hollow fiber membrane with both ends open (length 95 mm, outer diameter 380 μm, membrane thickness 55 μm,
) with an average pore diameter of 0.1 μm are bundled into a comb shape and stored so that both open ends are located in the resin fixing part, and a liquid composition for forming urethane resin (17 ml) is further placed on the open end side of the housing.
) was attached so that the tip of the liquid resin supply pipe extending from the pot was positioned in front of the cutting site to obtain a set for forming a hollow fiber membrane module.
【００３６】次に、この中空糸膜モジュール形成用セッ
トを遠心機にセットし、２４０ｒｐｍの回転によって生
じる遠心力をハウジングの開口端側から閉鎖端側方向に
かけて処理した。Next, this set for forming a hollow fiber membrane module was set in a centrifuge, and centrifugal force generated by rotation at 240 rpm was applied from the open end side of the housing toward the closed end side.
【００３７】ハウジングの閉鎖端内に供給された樹脂が
硬化したところで、中空糸膜モジュール形成用セットを
遠心機から取り出し、ポットを液状樹脂供給管との接続
部から取り外し、更に、形成された固定部材に６０〜７
０℃で加熱処理を行った後、室温で２０日間放置してこ
れを完全硬化させた。When the resin supplied into the closed end of the housing has hardened, the hollow fiber membrane module forming set is removed from the centrifuge, the pot is removed from the connection with the liquid resin supply pipe, and the formed fixing tube is removed. 60-7 for parts
After heat treatment at 0° C., it was left to stand at room temperature for 20 days to completely cure it.
【００３８】次に、固定部材５の端面に中空糸膜の開口
端を形成し、かつこれに所定の厚さを与えるために、ハ
ウジングの閉鎖端部の末端から１０ｍｍの位置（閉鎖端
形成部の筒状部との境界に隣接する位置）でハウジング
の軸に垂直な方向に切断し、中空糸膜モジュールを得た
。Next, in order to form an open end of the hollow fiber membrane on the end face of the fixing member 5 and give it a predetermined thickness, a position 10 mm from the end of the closed end of the housing (closed end forming part) is formed. A hollow fiber membrane module was obtained by cutting in a direction perpendicular to the axis of the housing at a position adjacent to the boundary with the cylindrical part.
【００３９】得られた中空糸膜モジュールは、固定部材
にＵ字状に両端が開口状態で固定された多数の中空糸膜
を有し、良好な濾過性能を有していた。The obtained hollow fiber membrane module had a large number of hollow fiber membranes fixed to a fixing member in a U-shape with both ends open, and had good filtration performance.
【００４０】[0040]
【発明の効果】本発明の方法によれば、より簡略化され
た工程による、コンパクトな状態での中空糸膜開口端の
ハウジングへの固定が可能となり、生産性良く中空糸膜
モジュールを製造できる。また、本発明の方法は、中空
糸膜束を挿入するハウジングとして、一体成形したもの
を利用するのでハウジングの成形が容易かつ安価となり
、更に中空糸膜モジュール形成時に従来の方法のように
閉鎖端形成用のキャップの着脱操作が不要となるなど、
生産性の向上に極めて有効である。[Effects of the Invention] According to the method of the present invention, it is possible to fix the open end of the hollow fiber membrane to the housing in a compact state through a simpler process, and it is possible to manufacture the hollow fiber membrane module with high productivity. . In addition, since the method of the present invention utilizes an integrally molded housing into which the hollow fiber membrane bundle is inserted, the housing can be easily and inexpensively molded. There is no need to attach or detach the forming cap, etc.
It is extremely effective in improving productivity.
【図１】本発明の方法の一例における固定部材の切断前
の中空糸膜束の固定部材による固定状態をハウジングの
縦断面として示す図である。FIG. 1 is a longitudinal cross-sectional view of a housing showing a state in which a hollow fiber membrane bundle is fixed by a fixing member before the fixing member is cut in an example of the method of the present invention.
１ ハウジング １ａ 筒状部 １ｂ 閉鎖端形成部 ２ 中空糸膜 ３ 液状樹脂供給用のポット ４ 液状樹脂注入管 ５ 固定部材 1 Housing 1a Cylindrical part 1b Closed end forming part 2 Hollow fiber membrane 3 Pot for liquid resin supply 4 Liquid resin injection pipe 5 Fixed member
Claims (1)
部材により固定し、該固定部材を該筒状ハウジングの周
壁とともに切断することによる切断端面への前記中空糸
膜束を構成する中空糸膜の開口端の形成過程を含む中空
糸膜モジュールの製造方法において、前記筒状ハウジン
グが、一方が開口端であり、他方が閉鎖端である一体成
形の筒状を有し、該筒状ハウジングの閉鎖端内に前記中
空糸膜束の固定すべき部分を配置して、前記固定部材に
よる固定及び切断による中空糸膜の開口端の形成を行う
ことを特徴とする中空糸膜モジュールの製造方法。1. A hollow fiber membrane bundle is fixed in a cylindrical housing by a fixing member, and the hollow fibers constituting the hollow fiber membrane bundle are attached to a cut end surface by cutting the fixing member together with the peripheral wall of the cylindrical housing. In the method for manufacturing a hollow fiber membrane module including the step of forming an open end of the membrane, the cylindrical housing has an integrally molded cylindrical shape with one end being an open end and the other being a closed end, and the cylindrical housing A method for manufacturing a hollow fiber membrane module, comprising arranging a portion of the hollow fiber membrane bundle to be fixed within the closed end of the hollow fiber membrane bundle, and forming an open end of the hollow fiber membrane by fixing with the fixing member and cutting. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7360791A JPH04284834A (en) | 1991-03-14 | 1991-03-14 | Preparation of hollow yarn membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7360791A JPH04284834A (en) | 1991-03-14 | 1991-03-14 | Preparation of hollow yarn membrane module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04284834A true JPH04284834A (en) | 1992-10-09 |
Family
ID=13523194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7360791A Pending JPH04284834A (en) | 1991-03-14 | 1991-03-14 | Preparation of hollow yarn membrane module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04284834A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003516849A (en) * | 1999-12-17 | 2003-05-20 | ミリポア・コーポレイション | Potting of spiral hollow fiber |
| JP2004230334A (en) * | 2003-01-31 | 2004-08-19 | Mitsubishi Rayon Co Ltd | Water cleaning cartridge and water cleaner |
| JP2011131146A (en) * | 2009-12-24 | 2011-07-07 | Toray Ind Inc | Method for manufacturing hollow fiber membrane module |
| CN102500237A (en) * | 2011-10-31 | 2012-06-20 | 江苏苏净集团有限公司 | Method for manufacturing hollow fibrous membrane components by horizontal centrifugal casting method |
| WO2015137308A1 (en) * | 2014-03-10 | 2015-09-17 | 三菱レイヨン株式会社 | Hollow fiber membrane module and manufacturing method therefor |
-
1991
- 1991-03-14 JP JP7360791A patent/JPH04284834A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003516849A (en) * | 1999-12-17 | 2003-05-20 | ミリポア・コーポレイション | Potting of spiral hollow fiber |
| JP2004230334A (en) * | 2003-01-31 | 2004-08-19 | Mitsubishi Rayon Co Ltd | Water cleaning cartridge and water cleaner |
| JP2011131146A (en) * | 2009-12-24 | 2011-07-07 | Toray Ind Inc | Method for manufacturing hollow fiber membrane module |
| CN102500237A (en) * | 2011-10-31 | 2012-06-20 | 江苏苏净集团有限公司 | Method for manufacturing hollow fibrous membrane components by horizontal centrifugal casting method |
| WO2015137308A1 (en) * | 2014-03-10 | 2015-09-17 | 三菱レイヨン株式会社 | Hollow fiber membrane module and manufacturing method therefor |
| KR20160130311A (en) * | 2014-03-10 | 2016-11-10 | 미쯔비시 레이온 가부시끼가이샤 | Hollow fiber membrane module and manufacturing method therefor |
| JP6079871B2 (en) * | 2014-03-10 | 2017-02-15 | 三菱レイヨン株式会社 | Hollow fiber membrane module and manufacturing method thereof |
| CN106457156A (en) * | 2014-03-10 | 2017-02-22 | 三菱丽阳株式会社 | Hollow fiber membrane module and manufacturing method therefor |
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