JP2000334270A - A method of sealing a hollow portion of a one-end sealing module comprising a hollow fiber membrane with a resin and a casting pot used in the method - Google Patents
A method of sealing a hollow portion of a one-end sealing module comprising a hollow fiber membrane with a resin and a casting pot used in the methodInfo
- Publication number
- JP2000334270A JP2000334270A JP11152136A JP15213699A JP2000334270A JP 2000334270 A JP2000334270 A JP 2000334270A JP 11152136 A JP11152136 A JP 11152136A JP 15213699 A JP15213699 A JP 15213699A JP 2000334270 A JP2000334270 A JP 2000334270A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- resin
- membrane bundle
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
(57)【要約】
【課題】中空糸膜からなる一端封止モジュールの中空部
を樹脂で封止する方法において、中空部に流入する樹脂
の量を均一にし、管理するのが容易な方法を提供する。
【解決手段】本発明の方法は、複数の中空糸膜を束ねて
なる中空糸膜束３をそれよりも短い筒状のケース１に収
納し、中空糸膜束３の一端とケース１の一端との隙間に
第一の樹脂２を充填して中空糸膜束３とケース１を固定
し、ケース１よりも突出している中空糸膜束３の自由端
側の中空部を第二の樹脂８で封止する方法において、下
記の（ａ）乃至（ｃ）の各工程を経ることを特徴として
いる。
（ａ）一端がケース１に固定された上記中空糸膜束３の
自由端の前方に、各々の中空糸膜の自由端側開口部を除
くほかは閉鎖された所定体積の空間を形成する工程。
（ｂ）その空間に所定量の第二樹脂８を充填することに
より中空糸膜束３の自由端側中空部に第二樹脂８を流入
させる工程。
（ｃ）中空部に流入していない余剰の第二樹脂を硬化後
に中空糸膜の突出部分とともに切除する工程。
(57) [Summary] In a method of sealing a hollow portion of a one-end sealing module made of a hollow fiber membrane with a resin, there is provided a method in which the amount of resin flowing into the hollow portion is uniform and easy to manage. provide. According to the method of the present invention, a hollow fiber membrane bundle formed by bundling a plurality of hollow fiber membranes is housed in a shorter cylindrical case, and one end of the hollow fiber membrane bundle and one end of the case are provided. Is filled with the first resin 2 to fix the hollow fiber membrane bundle 3 and the case 1, and the hollow portion of the hollow fiber membrane bundle 3 protruding beyond the case 1 on the free end side is filled with the second resin 8. In the method of sealing by using the following, each of the following steps (a) to (c) is performed. (A) A step of forming a closed space of a predetermined volume in front of the free end of the hollow fiber membrane bundle 3 having one end fixed to the case 1 except for the free end side opening of each hollow fiber membrane. . (B) a step of filling the space with a predetermined amount of the second resin 8 so that the second resin 8 flows into the hollow portion on the free end side of the hollow fiber membrane bundle 3. (C) a step of cutting off excess second resin that has not flowed into the hollow portion together with the protruding portion of the hollow fiber membrane after curing.
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、中空糸膜からな
る一端封止モジュールの中空部を樹脂で封止する方法及
びその方法に用いる注型ポットに属する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of sealing a hollow portion of a one-end sealing module comprising a hollow fiber membrane with a resin and a casting pot used in the method.
【０００２】[0002]
【従来の技術】血液透析や海水淡水化に中空糸膜を用い
た膜分離技術が用いられている。中空糸膜モジュール
は、中空糸膜の両端が開口して接着材を介してケースに
保持されているものと、一端が開口して接着材を介して
ケースに保持され、他端が封止されて自由状態にされて
いるものとがある。後者の一端封止モジュールは工業的
に有用であるが、中空糸膜１本１本の封止が困難であ
る。2. Description of the Related Art Membrane separation techniques using hollow fiber membranes have been used for hemodialysis and seawater desalination. The hollow fiber membrane module is one in which both ends of the hollow fiber membrane are opened and held in the case via an adhesive, and one in which the hollow fiber membrane is opened and held in the case via an adhesive and the other end is sealed. Some are free. The latter one-end sealing module is industrially useful, but it is difficult to seal each hollow fiber membrane.
【０００３】従来、一端封止モジュールの自由端側の中
空部を封止する方法として、図３に示すように、多数本
の中空糸膜の束からなる中空糸膜束３の固定端とすべき
端部を筒状ケース１に樹脂２にて固定し（図３(a)）、
自由端を容器内の封止用樹脂８に浸し（図３(b)）、吸
引ポット１３を介してポンプ１４にて吸引することによ
り中空部に封止用樹脂８を流入させ（図３(c)）、硬化
後（図３(d)）に余分な封止用樹脂８を切除する（図３
(e)）方法が知られている。Conventionally, as a method of sealing a hollow portion on a free end side of a one-end sealing module, as shown in FIG. 3, a fixed end of a hollow fiber membrane bundle 3 composed of a bundle of a large number of hollow fiber membranes is used. The end to be fixed is fixed to the cylindrical case 1 with the resin 2 (FIG. 3A),
The free end is immersed in the sealing resin 8 in the container (FIG. 3 (b)) and sucked by the pump 14 through the suction pot 13 to flow the sealing resin 8 into the hollow portion (FIG. c)) After curing (FIG. 3 (d)), excess sealing resin 8 is cut off (FIG. 3 (d)).
(e)) Methods are known.
【０００４】又、この方法の生産性を改良すべく、特開
昭５４−８２４３９号公報には、自由端側を回転中心よ
り遠い側に配置して、筒状ケース内の中空糸内外に自由
端側より硬化性樹脂を供給し、その樹脂の硬化前に更に
回転中心側より低比重非硬化性液体を供給して遠心力に
より硬化性樹脂を中空糸膜の中空部に流入させる方法が
提案されている。In order to improve the productivity of this method, Japanese Patent Application Laid-Open No. 54-82439 discloses that the free end is disposed farther than the center of rotation so that the free end can be freely inserted into and out of the hollow fiber in the cylindrical case. A method is proposed in which a curable resin is supplied from the end side, and before the resin is cured, a low-density non-curable liquid is further supplied from the rotation center side so that the curable resin flows into the hollow portion of the hollow fiber membrane by centrifugal force. Have been.
【０００５】[0005]
【発明が解決しようとする課題】しかし、図２に示した
封止方法では、樹脂の粘度や、中空糸の固定端側及び／
又は自由端側の開口状態などの膜品質のばらつきによっ
て、樹脂の流入量が不均一になっていたし、流入量の管
理も十分にされていなかった。従って、モジュールの品
質が安定しなかった。However, in the sealing method shown in FIG. 2, the viscosity of the resin, the fixed end side of the hollow fiber and / or
Alternatively, due to variations in film quality such as the state of the opening on the free end side, the inflow of the resin has been uneven, and the management of the inflow has not been sufficiently performed. Therefore, the quality of the module was not stable.
【０００６】又、特開昭５４−８２４３９号公報に記載
の方法においても、遠心機の回転数の調整が難しいため
に、樹脂の流入量の管理が十分でなかった。そのため、
樹脂と非硬化性液体とが部分的に混ざってしまうという
問題があり、この問題を解決するには、遠心機のシステ
ムを複雑にしなければならなかった。それ故、本発明の
目的は、中空部に流入する樹脂の量を均一にし、管理す
るのが容易な封止方法を提供することにある。又、本発
明は、封止方法で使用される注型ポットを提供すること
を目的としている。Also, in the method described in Japanese Patent Application Laid-Open No. 54-82439, it is difficult to control the number of revolutions of the centrifuge. for that reason,
There is a problem that the resin and the non-curable liquid are partially mixed. To solve this problem, the centrifuge system had to be complicated. Therefore, an object of the present invention is to provide a sealing method in which the amount of resin flowing into a hollow portion is made uniform and easy to manage. Another object of the present invention is to provide a casting pot used in the sealing method.
【０００７】[0007]
【課題を解決するための手段】本発明の封止方法は、複
数の中空糸膜を束ねてなる中空糸膜束をそれよりも短い
筒状のケースに収納し、中空糸膜束の一端とケースの一
端との隙間に第一の樹脂を充填して中空糸膜束とケース
を固定し、ケースよりも突出している中空糸膜束の自由
端側の中空部を第二の樹脂で封止する方法において、下
記の（ａ）乃至（ｃ）の各工程を経ることを特徴として
いる。 （ａ）一端がケースに固定された上記中空糸膜束の自由
端の前方に、各々の中空糸膜の自由端側開口部を除くほ
かは閉鎖された所定体積の空間を形成する工程。 （ｂ）その空間に所定量の第二樹脂を充填することによ
り中空糸膜束の自由端側中空部に第二樹脂を流入させる
工程。 （ｃ）中空部に流入していない余剰の第二樹脂を硬化後
に中空糸膜束の突出部分とともに切除する工程。According to the sealing method of the present invention, a hollow fiber membrane bundle formed by bundling a plurality of hollow fiber membranes is housed in a shorter cylindrical case, and one end of the hollow fiber membrane bundle is provided. Fill the gap with one end of the case with the first resin to fix the hollow fiber membrane bundle and the case, and seal the hollow part on the free end side of the hollow fiber membrane bundle protruding from the case with the second resin. The method is characterized by passing through each of the following steps (a) to (c). (A) forming a closed space of a predetermined volume in front of the free ends of the hollow fiber membrane bundle, one end of which is fixed to the case, except for the free end side opening of each hollow fiber membrane; (B) a step of filling the space with a predetermined amount of the second resin so that the second resin flows into the hollow portion on the free end side of the hollow fiber membrane bundle; (C) a step of cutting off excess second resin that has not flowed into the hollow portion together with the protruding portion of the hollow fiber membrane bundle after curing.
【０００８】本発明の封止方法では、中空糸膜束の自由
端前方に形成された所定体積の空間に所定量の樹脂を充
填させることにより、中空部に流入させる。よって、中
空部に流入する樹脂の量は予め定まっており、管理する
のが容易である。又、前記空間では、いずれの中空糸膜
の自由端も開口しているので、開口状態にばらつきが無
く、その上、自由端のほかは閉鎖されているので、樹脂
の流入量は均一になる。In the sealing method of the present invention, a predetermined amount of resin is filled in a space of a predetermined volume formed in front of the free end of the hollow fiber membrane bundle, so that the resin flows into the hollow portion. Therefore, the amount of the resin flowing into the hollow portion is predetermined, and is easy to manage. In addition, in the space, the free ends of all the hollow fiber membranes are open, so that there is no variation in the open state, and since the other ends are closed, the inflow of resin is uniform. .
【０００９】前記空間を形成する方法は、下記（ａ−
１）乃至（ａ−４）の各工程からなることが好ましい。 （ａ−１）一端がケースに固定された中空糸膜束の自由
端側中空部を目止めするとともに、胴部と底部とで軸方
向に二分割可能な有底の注型ポットに仮接着用の樹脂を
注入する工程。 （ａ−２）中空糸膜束の自由端を注型ポット内の仮接着
用樹脂に浸した状態でケースの開口端と注型ポットの開
口端とを固定する工程。 （ａ−３）仮接着用樹脂の硬化後、注型ポットの底部を
取り外し、胴部よりはみ出した仮接着用樹脂を切除する
ことにより、中空糸膜同士の間隙及び中空糸膜と注型ポ
ットの胴部との間隙を閉鎖した状態で各中空糸膜の自由
端を開口状態にする工程。 （ａ−４）取り外した注型ポットの底部を再度胴部に取
り付けることにより、各々の中空糸膜の自由端側開口部
を除くほかは底部内面と仮接着用樹脂とで閉鎖された所
定体積の空間を、中空糸膜束の自由端の前方に形成する
工程。The method for forming the space is as follows (a-
Preferably, the method comprises the steps 1) to (a-4). (A-1) The hollow end of the hollow fiber membrane bundle whose one end is fixed to the case is stopped, and the temporary adhesive is temporarily attached to a bottomed casting pot that can be bisected in the axial direction by the body and the bottom. Injecting resin for use. (A-2) A step of fixing the open end of the case and the open end of the casting pot with the free end of the hollow fiber membrane bundle immersed in the temporary bonding resin in the casting pot. (A-3) After the temporary bonding resin is cured, the bottom of the casting pot is removed, and the temporary bonding resin protruding from the body is cut off, so that the gap between the hollow fiber membranes and the hollow fiber membrane and the casting pot are removed. Opening the free ends of the hollow fiber membranes in a state where the gap with the body is closed. (A-4) A predetermined volume closed by the inner surface of the bottom and the temporary bonding resin except for the opening at the free end side of each hollow fiber membrane by attaching the bottom of the removed casting pot to the body again. Forming the space in front of the free end of the hollow fiber membrane bundle.
【００１０】中空糸膜束の自由端側中空部は、（ａ−
１）工程で目止めされているので、（ａ−２）工程で仮
接着用樹脂が侵入することはない。従って、（ａ−３）
工程で胴部からはみ出した仮接着用樹脂を切除すると、
各中空糸膜の自由端が開口状態となるとともに、中空糸
膜同士の間隙及び中空糸膜と注型ポットの胴部との間隙
は面一に閉鎖される。その結果（ａ−４）で、容積一定
の底部を再度取り付けることにより、中空糸膜束の自由
端前方に所定体積の空間が形成される。The hollow portion at the free end of the hollow fiber membrane bundle is (a-
Since the sealing is performed in the step 1), the temporary bonding resin does not intrude in the step (a-2). Therefore, (a-3)
When the resin for temporary bonding that protrudes from the trunk in the process is cut off,
The free ends of the hollow fiber membranes are opened, and the gap between the hollow fiber membranes and the gap between the hollow fiber membrane and the body of the casting pot are closed flush. As a result, in (a-4), a space of a predetermined volume is formed in front of the free end of the hollow fiber membrane bundle by reattaching the bottom having a constant volume.
【００１１】又、この方法において用いる適切な注型ポ
ットは、前記ケースの中空糸膜束が固定されていない側
の端部に離脱可能に固定されうるとともに、中空糸膜束
の突出部分の非先端部を包囲しうるリング状の胴部と、
胴部に離脱可能に液密に固定されうるとともに、中空糸
膜束の突出部分の先端部を包囲しうる一端閉塞の底部と
を備えることを特徴としている。Further, a suitable casting pot used in this method can be detachably fixed to the end of the case on which the hollow fiber membrane bundle is not fixed, and has a non-projecting portion of the hollow fiber membrane bundle. A ring-shaped body that can surround the tip,
It is characterized by being provided with a bottom part which can be detachably fixed to the body part in a liquid-tight manner and which is closed at one end and which can surround the tip part of the protruding part of the hollow fiber membrane bundle.
【００１２】胴部の仮接着用樹脂を注型する空間は、ケ
ース側を最大径とするテーパー状をなしているのが好ま
しい。この場合、胴部の内壁と硬化後の仮接着用樹脂と
の接触面が傾斜しているので、胴部をケースから取り外
す際に、胴部に働く摩擦力の向きが胴部の移動方向と平
行にならないため、取り外しが容易になる。ここで、胴
部の注型空間をテーパー状にすることにより仮接着用樹
脂がケースの端部に付着しやすくなるが、これを防ぐた
めには、テーパー状空間の最大径をケースの内径よりも
小さくすると良い。It is preferable that the space for casting the temporary bonding resin in the body has a tapered shape whose maximum diameter is on the case side. In this case, the contact surface between the inner wall of the body and the cured temporary bonding resin is inclined, so that when the body is removed from the case, the direction of the frictional force acting on the body depends on the movement direction of the body. Since they are not parallel, removal becomes easy. Here, by making the casting space of the body tapered, the temporary bonding resin is easily attached to the end of the case, but in order to prevent this, the maximum diameter of the tapered space is made larger than the inner diameter of the case. It is better to make it smaller.
【００１３】[0013]
【発明の実施の形態】−第一実施形態− 図１は、本発明の第一実施形態の封止方法を示す断面図
である。DESCRIPTION OF THE PREFERRED EMBODIMENTS First Embodiment FIG. 1 is a sectional view showing a sealing method according to a first embodiment of the present invention.
【００１４】本実施形態では、まず、多数本の中空糸膜
の束からなる中空糸膜束３の固定端とすべき端部を筒状
ケース１にエポキシ樹脂２にて固定又は仮止めする。そ
して、中空糸膜束３の自由端に石膏を塗り、乾燥硬化後
に中空糸膜束３を手で揉みほぐしながら、膜と膜との隙
間に入った石膏を取り除く。これにより、中空糸膜の自
由端側中空部が目止めされる。又、注型ポットに仮接着
用の樹脂６を注入する（ａ−１）。In this embodiment, first, an end portion to be a fixed end of a hollow fiber membrane bundle 3 composed of a bundle of a large number of hollow fiber membranes is fixed or temporarily fixed to a cylindrical case 1 with an epoxy resin 2. Then, gypsum is applied to the free end of the hollow fiber membrane bundle 3, and after drying and curing, the gypsum that has entered the gap between the membranes is removed while rubbing the hollow fiber membrane bundle 3 by hand. Thereby, the hollow portion on the free end side of the hollow fiber membrane is stopped. Further, the resin 6 for temporary bonding is poured into the casting pot (a-1).
【００１５】ここで、注型ポットは、筒状ケース１の開
口端１Ａに離脱可能に固定されうるとともに、中空糸膜
束３の突出部分の非先端部を包囲しうるリング状の胴部
４と、この胴部４に離脱可能に液密に固定されうるとと
もに、中空糸膜束３の突出部分の先端部を包囲しうる一
端閉塞の底部５とからなり、底面には開閉自在の注入口
を有する。Here, the casting pot can be detachably fixed to the open end 1A of the cylindrical case 1 and can surround the non-tip portion of the protruding portion of the hollow fiber membrane bundle 3 in a ring-shaped body portion 4. And a bottom part 5 which can be detachably fixed to the body part 4 in a liquid-tight manner and which can enclose the front end part of the protruding part of the hollow fiber membrane bundle 3 and is closed at one end. Having.
【００１６】次に、中空糸膜束３の自由端が仮接着用樹
脂６に浸るように筒状ケース１の開口端１Ａに注型ポッ
トをＶバンドにより固定する（ａ−２）。仮接着用樹脂
６の硬化後に、注型ポットの底部５を取り外し、胴部４
よりはみ出した樹脂６Ａを切除する（ａ−３）。このと
き、石膏で目止めされていた中空糸膜の端部も同時に除
かれる。従って、中空糸膜同士の間隙及び中空糸膜と注
型ポット胴部４との間隙は閉鎖されるが、各中空糸膜の
自由端は開口した状態になる。続いて、注型ポット底部
５を再度胴部４に固定する（ａ−４）。尚、底部５を使
い捨てにする場合は、予め注入口を設けておくのではな
く、この段階でドリル等を用いて注入口を開けても良
い。Next, a casting pot is fixed to the open end 1A of the cylindrical case 1 with a V band so that the free end of the hollow fiber membrane bundle 3 is immersed in the temporary bonding resin 6 (a-2). After the temporary bonding resin 6 is cured, the bottom 5 of the casting pot is removed and the body 4
The protruding resin 6A is cut off (a-3). At this time, the ends of the hollow fiber membranes sealed with gypsum are also removed. Therefore, the gap between the hollow fiber membranes and the gap between the hollow fiber membrane and the casting pot body 4 are closed, but the free ends of the hollow fiber membranes are open. Subsequently, the casting pot bottom 5 is fixed to the body 4 again (a-4). When the bottom portion 5 is disposable, the injection port may be opened using a drill or the like at this stage, instead of providing the injection port in advance.
【００１７】そして、封止用樹脂８を注型ポットに充填
することにより、各中空糸膜の自由端中空部に流入させ
る（ｂ）。封止用樹脂８を注型ポットに充填する方法と
して、二つの方法I、IIを図に示している。Iに示す方法
では、底に孔が設けられた容器７を用意して、その孔と
注型ポット底部５の注入口とをチューブ９で繋ぎ、容器
７内に所定量Ｖの封止用樹脂８を入れることによって自
重で注型ポット内へ移動させる。封止用樹脂８が全て注
型ポットに入ると、チューブ９をクリップで押さえるか
又はチューブ９を結ぶなどして樹脂８の流出を防ぐ。Then, the potting pot is filled with the sealing resin 8 to flow into the free ends of the hollow fiber membranes (b). Two methods I and II are shown in the figure as a method for filling the casting pot with the sealing resin 8. In the method shown in I, a container 7 having a hole at the bottom is prepared, and the hole is connected to the injection port of the casting pot bottom 5 by a tube 9. By moving 8 into the casting pot by its own weight. When the entire sealing resin 8 enters the casting pot, the resin 9 is prevented from flowing out by pressing the tube 9 with a clip or tying the tube 9.
【００１８】IIに示す方法では、遠心注型機の回転板１
０に筒状ケース１を搭載して、注型ポット底部５と分配
器１１とをチューブ１２で繋ぎ、所定量Ｖの封止用樹脂
８を分配器１１内に入れる。続いて、遠心注型機を作動
させることによって、封止用樹脂８を注型ポット内へ移
動させる。このとき、封止用樹脂８を全て注型ポット内
へ移動させることが可能な限り、任意の回転数で作動さ
せれば良く、回転数の微妙な調整をする必要はない。従
って、複雑なシステムを備えた遠心注型機を使用する必
要もない。In the method shown in II, the rotating plate 1 of the centrifugal casting machine is used.
Then, the cylindrical case 1 is mounted at 0, the casting pot bottom 5 and the distributor 11 are connected by a tube 12, and a predetermined amount V of the sealing resin 8 is put into the distributor 11. Subsequently, the sealing resin 8 is moved into the casting pot by operating the centrifugal casting machine. At this time, as long as the entire sealing resin 8 can be moved into the casting pot, it may be operated at an arbitrary rotation speed, and there is no need to finely adjust the rotation speed. Therefore, it is not necessary to use a centrifugal casting machine having a complicated system.
【００１９】I又はIIに示す方法により封止用樹脂８を
注型ポットに充填すると、各中空糸膜の自由端以外は閉
鎖されているので、（用意した封止用樹脂８の量Ｖ）−
（注型ポット底部５の内容積）に相当する量の樹脂８が
各中空糸膜の自由端中空部に流入する。即ち、封止用樹
脂８の中空部への流入量は一定であり、そのため流入量
の管理が容易である。又、各中空糸膜の自由端は等しく
開口しているので、封止用樹脂８の流入量は均一にな
る。但し、筒状ケース１の開口端１Ａより内側にまで流
入するように、封止用樹脂８の量Ｖを定める必要があ
る。When the potting pot is filled with the sealing resin 8 by the method shown in I or II, the portion other than the free end of each hollow fiber membrane is closed. −
An amount of the resin 8 corresponding to (the inner volume of the casting pot bottom 5) flows into the free end hollow portion of each hollow fiber membrane. That is, the inflow amount of the sealing resin 8 into the hollow portion is constant, and therefore, the inflow amount can be easily managed. Since the free ends of the hollow fiber membranes are equally opened, the inflow of the sealing resin 8 becomes uniform. However, it is necessary to determine the amount V of the sealing resin 8 so as to flow inward from the opening end 1A of the cylindrical case 1.
【００２０】封止用樹脂８を各中空糸膜の自由端中空部
に流入させると、そのまま封止用樹脂８を硬化させる
（ｃ−１）。そして、注型ポットの底部５及び胴部４を
軽く叩きながら筒状ケース１から順に取り外し（ｃ−
２）、中空糸膜束３の筒状ケース１よりはみ出した部分
を切除する（ｃ−３）。これにより、各中空糸膜の自由
端側が封止用樹脂８によって封止され、かつ自由状態に
なる。尚、本実施形態において、筒状ケース１が、中空
糸膜束３を固定する部分と収納する部分とに分割可能な
構造であると、収納部を外した状態で中空糸膜束３をケ
ース１に固定することができるので、作業がさらに容易
になる。When the sealing resin 8 flows into the hollow portion at the free end of each hollow fiber membrane, the sealing resin 8 is cured as it is (c-1). Then, while gently tapping the bottom 5 and the body 4 of the casting pot, the pot is removed from the cylindrical case 1 in order (c-
2) A portion of the hollow fiber membrane bundle 3 protruding from the cylindrical case 1 is cut off (c-3). Thus, the free end side of each hollow fiber membrane is sealed by the sealing resin 8 and is in a free state. In the present embodiment, if the tubular case 1 has a structure that can be divided into a part for fixing the hollow fiber membrane bundle 3 and a part for storing the hollow fiber membrane bundle 3, the hollow fiber membrane bundle 3 is removed from the case with the storage part removed. 1, the work is further facilitated.
【００２１】−第二実施形態− 第二実施形態の封止方法では、第一実施形態と同じ工程
を経るが、使用する注型ポットが異なる。図２に示すよ
うにこの実施形態の胴部４'は、テーパー状をなした注
型空間を有し、その最大径ｄ2は筒状ケース１の内径ｄ1
より３ｍｍ小さく、最小径ｄ3はｄ1より２０ｍｍ小さ
い。又、底部５'の内径ｄ4はｄ3と等しい。本実施形態
では、この注型ポットに仮接着用樹脂６を注入する（ａ
−１'）。その後は、第一実施形態において示した手順
に従えば良い。-Second Embodiment- The sealing method of the second embodiment goes through the same steps as the first embodiment, but uses a different casting pot. As shown in FIG. 2, the body 4 ′ of this embodiment has a casting space having a tapered shape, and the maximum diameter d 2 is the inner diameter d 1 of the cylindrical case 1.
And the minimum diameter d 3 is 20 mm smaller than d 1 . Further, the inner diameter d 4 of the bottom 5 'is equal to d 3. In this embodiment, the temporary bonding resin 6 is injected into this casting pot (a
-1 '). After that, the procedure shown in the first embodiment may be followed.
【００２２】本実施形態では、封止用樹脂８を各中空糸
膜の自由端中空部に流入させて硬化させる工程（ｃ−
１'）の後、注型ポット底部５'に続いて胴部４'をケー
ス１から取り外す際に、胴部４'と仮接着用樹脂６樹脂
との接触面が傾斜しているので、摩擦による抵抗が少な
くて済む。また、胴部４'の注型空間の最大径ｄ2は筒状
ケース１の内径ｄ1より小さく、注型空間と筒状ケース
１との間には水平な面４'Ａがあるので、仮接着用樹脂
６を硬化させる工程で、仮接着樹脂６がケース１の開口
端１Ａと胴部４'との隙間に侵入し、これらを固着させ
ることもない。即ち、本実施形態によると、胴部４'を
ケース１から取り外すのが容易であり、作業性の向上を
図ることができる。尚、胴部４'とともに底部５'の注型
空間もテーパー状にしても良い。In this embodiment, the sealing resin 8 is allowed to flow into the hollow portions at the free ends of the hollow fiber membranes and cured (c-
After 1 '), when the body portion 4' is removed from the case 1 following the casting pot bottom portion 5 ', the contact surface between the body portion 4' and the resin 6 for temporary bonding is inclined, so that friction is generated. The resistance due to is small. The maximum diameter d 2 of the casting space of the body portion 4 'is smaller than the inner diameter d 1 of the cylindrical case 1, because between the casting space and the tubular case 1 there is a horizontal surface 4'A, In the step of curing the temporary bonding resin 6, the temporary bonding resin 6 does not enter the gap between the opening end 1A of the case 1 and the body 4 'and does not fix them. That is, according to the present embodiment, it is easy to remove the trunk portion 4 ′ from the case 1, and it is possible to improve workability. In addition, the casting space of the bottom part 5 'together with the body part 4' may be tapered.
【００２３】[0023]
【発明の効果】本発明によると、中空糸膜からなる一端
封止モジュールの中空部を樹脂で封止する際に、中空部
に流入する樹脂の量を均一に管理するのが容易となる。
従って、品質の安定した一端封止モジュールを簡便に製
造することができる。さらに、注型ポット胴部の注型空
間をテーパー状にすることにより、一層作業効率を上げ
ることができる。According to the present invention, when the hollow portion of the one-end sealing module made of a hollow fiber membrane is sealed with a resin, it is easy to uniformly control the amount of resin flowing into the hollow portion.
Therefore, it is possible to easily manufacture a one-end sealed module of stable quality. Further, the working efficiency can be further increased by making the casting space of the casting pot body tapered.
【図１】第一実施形態の封止方法を示す断面図である。FIG. 1 is a cross-sectional view illustrating a sealing method according to a first embodiment.
【図２】第二実施形態の封止方法を示す断面図である。FIG. 2 is a cross-sectional view illustrating a sealing method according to a second embodiment.
【図３】従来の封止方法を示す断面図である。FIG. 3 is a cross-sectional view showing a conventional sealing method.
１ 筒状ケース ２ 樹脂 ３ 中空糸膜束 ４、４' 注型ポット胴部 ５、５' 注型ポット底部 ６ 仮接着用樹脂 ７ 容器 ８ 封止用樹脂 ９ チューブ １０ 回転板 １１ 樹脂分配機 １２ チューブ １３ 吸引ポット １４ ポンプ DESCRIPTION OF SYMBOLS 1 Cylindrical case 2 Resin 3 Hollow fiber membrane bundle 4, 4 'Cast pot body 5, 5' Cast pot bottom 6 Temporary bonding resin 7 Container 8 Sealing resin 9 Tube 10 Rotating plate 11 Resin distributor 12 Tube 13 Suction pot 14 Pump
Claims (7)
それよりも短い筒状のケースに収納し、中空糸膜束の一
端とケースの一端との隙間に第一の樹脂を充填して中空
糸膜束とケースを固定し、ケースよりも突出している中
空糸膜束の自由端側の中空部を第二の樹脂で封止する方
法において、下記の（ａ）乃至（ｃ）の各工程を経るこ
とを特徴とする方法。 （ａ）一端がケースに固定された上記中空糸膜束の自由
端の前方に、各々の中空糸膜の自由端側開口部を除くほ
かは閉鎖された所定体積の空間を形成する工程。 （ｂ）その空間に所定量の第二樹脂を充填することによ
り中空糸膜束の自由端側中空部に第二樹脂を流入させる
工程。 （ｃ）中空部に流入していない余剰の第二樹脂を硬化後
に中空糸膜束の突出部分とともに切除する工程。A hollow fiber membrane bundle formed by bundling a plurality of hollow fiber membranes is accommodated in a shorter cylindrical case, and a first resin is filled in a gap between one end of the hollow fiber membrane bundle and one end of the case. In the method of filling and fixing the hollow fiber membrane bundle and the case, and sealing the hollow portion on the free end side of the hollow fiber membrane bundle protruding from the case with the second resin, the following (a) to (c) ). (A) forming a closed space of a predetermined volume in front of the free ends of the hollow fiber membrane bundle, one end of which is fixed to the case, except for the free end side opening of each hollow fiber membrane; (B) a step of filling the space with a predetermined amount of the second resin so that the second resin flows into the hollow portion on the free end side of the hollow fiber membrane bundle; (C) a step of cutting off excess second resin that has not flowed into the hollow portion together with the protruding portion of the hollow fiber membrane bundle after curing.
（ａ−４）の各工程からなる請求項１に記載の方法。 （ａ−１）一端がケースに固定された中空糸膜束の自由
端側中空部を目止めするとともに、胴部と底部とで軸方
向に二分割可能な有底の注型ポットに仮接着用の樹脂を
注入する工程。 （ａ−２）中空糸膜束の自由端を注型ポット内の仮接着
用樹脂に浸した状態でケースの開口端と注型ポットの開
口端とを固定する工程。 （ａ−３）仮接着用樹脂の硬化後、注型ポットの底部を
取り外し、胴部よりはみ出した仮接着用樹脂を切除する
ことにより、中空糸膜同士の間隙及び中空糸膜と注型ポ
ットの胴部との間隙を閉鎖した状態で各中空糸膜の自由
端を開口状態にする工程。 （ａ−４）取り外した注型ポットの底部を再度胴部に取
り付けることにより、各々の中空糸膜の自由端側開口部
を除くほかは底部内面と仮接着用樹脂とで閉鎖された所
定体積の空間を、中空糸膜束の自由端の前方に形成する
工程。2. The method according to claim 1, wherein the step (a) comprises the following steps (a-1) to (a-4). (A-1) The hollow end of the hollow fiber membrane bundle whose one end is fixed to the case is stopped, and the temporary adhesive is temporarily attached to a bottomed casting pot that can be bisected in the axial direction by the body and the bottom. Injecting resin for use. (A-2) A step of fixing the open end of the case and the open end of the casting pot with the free end of the hollow fiber membrane bundle immersed in the temporary bonding resin in the casting pot. (A-3) After the temporary bonding resin is cured, the bottom of the casting pot is removed, and the temporary bonding resin protruding from the body is cut off, so that the gap between the hollow fiber membranes and the hollow fiber membrane and the casting pot are removed. Opening the free ends of the hollow fiber membranes in a state where the gap with the body is closed. (A-4) A predetermined volume closed by the inner surface of the bottom and the temporary bonding resin except for the free end side opening of each hollow fiber membrane by attaching the bottom of the removed casting pot to the body again. Forming the space in front of the free end of the hollow fiber membrane bundle.
を、第二樹脂の自重又は遠心力を利用して行う請求項１
又は２に記載の方法。3. The method according to claim 1, wherein the filling of the second resin in the step (b) is performed by using the own weight or centrifugal force of the second resin.
Or the method of 2.
それよりも短い筒状のケースに収納し、中空糸膜束の一
端とケースの一端との隙間に第一の樹脂を充填して中空
糸膜束とケースを固定し、ケースよりも突出している中
空糸膜束の自由端側の中空部を第二の樹脂で封止する方
法に用いられる注型ポットおいて、 前記ケースの他端に離脱可能に固定されうるとともに、
中空糸膜束の突出部分の非先端部を包囲しうるリング状
の胴部と、 胴部に離脱可能に液密に固定されうるとともに、中空糸
膜束の突出部分の先端部を包囲しうる一端閉塞の底部と
を備えることを特徴とする注型ポット。4. A hollow fiber membrane bundle formed by bundling a plurality of hollow fiber membranes is accommodated in a shorter cylindrical case, and a first resin is filled in a gap between one end of the hollow fiber membrane bundle and one end of the case. In the casting pot used for the method of filling and fixing the hollow fiber membrane bundle and the case, and sealing the hollow portion on the free end side of the hollow fiber membrane bundle projecting from the case with the second resin, While it can be detachably fixed to the other end of the case,
A ring-shaped body portion that can surround the non-tip portion of the protruding portion of the hollow fiber membrane bundle, and can be detachably fixed to the body portion in a liquid-tight manner, and can surround the tip portion of the protruding portion of the hollow fiber membrane bundle. A casting pot, comprising: a bottom closed at one end.
閉自在の注入口を底面に有する請求項４に記載の注型ポ
ット。5. The casting pot according to claim 4, wherein the bottom has an opening which can be opened and closed to inject the second resin.
大径とするテーパー状をなしている請求項４又は５に記
載の注型ポット。6. The casting pot according to claim 4, wherein the casting space of the body has a tapered shape having a maximum diameter on the case side.
さい請求項６に記載の注型ポット。7. The casting pot according to claim 6, wherein the maximum diameter is smaller than the inner diameter of the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11152136A JP2000334270A (en) | 1999-05-31 | 1999-05-31 | A method of sealing a hollow portion of a one-end sealing module comprising a hollow fiber membrane with a resin and a casting pot used in the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11152136A JP2000334270A (en) | 1999-05-31 | 1999-05-31 | A method of sealing a hollow portion of a one-end sealing module comprising a hollow fiber membrane with a resin and a casting pot used in the method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000334270A true JP2000334270A (en) | 2000-12-05 |
Family
ID=15533842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11152136A Pending JP2000334270A (en) | 1999-05-31 | 1999-05-31 | A method of sealing a hollow portion of a one-end sealing module comprising a hollow fiber membrane with a resin and a casting pot used in the method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000334270A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008237993A (en) * | 2007-03-26 | 2008-10-09 | Nitto Denko Corp | Method for producing hollow fiber membrane module |
| CN100551499C (en) * | 2004-08-23 | 2009-10-21 | 西门子水技术公司 | Packaging method for membrane filtration module |
| US7988855B2 (en) | 2003-10-21 | 2011-08-02 | Zenon Technology Partnership | Membrane bioreactor having single header membrane module |
-
1999
- 1999-05-31 JP JP11152136A patent/JP2000334270A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7988855B2 (en) | 2003-10-21 | 2011-08-02 | Zenon Technology Partnership | Membrane bioreactor having single header membrane module |
| CN100551499C (en) * | 2004-08-23 | 2009-10-21 | 西门子水技术公司 | Packaging method for membrane filtration module |
| JP2008237993A (en) * | 2007-03-26 | 2008-10-09 | Nitto Denko Corp | Method for producing hollow fiber membrane module |
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