JPH0884914A - Hollow fiber membrane module - Google Patents
Hollow fiber membrane moduleInfo
- Publication number
- JPH0884914A JPH0884914A JP3906095A JP3906095A JPH0884914A JP H0884914 A JPH0884914 A JP H0884914A JP 3906095 A JP3906095 A JP 3906095A JP 3906095 A JP3906095 A JP 3906095A JP H0884914 A JPH0884914 A JP H0884914A
- Authority
- JP
- Japan
- Prior art keywords
- case
- hollow fiber
- fiber membrane
- outside
- bundle
- 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]
【産業上の利用分野】この発明は、中空の細い糸を多数
束ねたものをろ過膜として用いるもので、水道の浄水
器、その他、医療用、産業用に広く使われている中空糸
膜モジュールに関する。さらに言うと、前記中空糸膜の
束をケースに装填し、ケース端部において、中空糸膜の
束をケース外部と連通させながら封止する中空糸膜モジ
ュールに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a bundle of a large number of hollow thin fibers as a filtration membrane, which is widely used in water purifiers, medical, and industrial applications. Regarding More specifically, the present invention relates to a hollow fiber membrane module in which the bundle of hollow fiber membranes is loaded in a case and the bundle of hollow fiber membranes is sealed at the end of the case while communicating with the outside of the case.
【０００２】[0002]
【従来の技術】従来のこの種の中空糸膜モジュールとし
ては、例えば図１３に示すようなものがある。即ち、こ
の中空糸膜モジュールは、中空糸膜１００Ａの束１００
をケース１０１に装填し、ケース１０１の端部におい
て、中空糸膜束１００をケース１０１の外部と連通させ
ながら封止するもので、ケース１０１の端部を封止する
ためのポッティング剤（封止剤）１０２はケース１０１
の内部に充填されているだけであった。2. Description of the Related Art As a conventional hollow fiber membrane module of this type, for example, there is one shown in FIG. That is, this hollow fiber membrane module is a bundle 100 of hollow fiber membranes 100A.
Is loaded into the case 101, and the hollow fiber membrane bundle 100 is sealed at the end of the case 101 while communicating with the outside of the case 101. A potting agent (sealing) for sealing the end of the case 101 is used. Agent 102 is case 101
It was only filled inside.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記の
ポッティング剤１０２がケース１０１の内部に充填され
ているだけの従来技術では、熱に弱く、圧力に対しても
弱い。即ち、ろ過すべき原液の温度等の使用温度、環境
温度、またはケース内部の圧力が高くなった状態では、
プラスチックのケース１０１とポッティング剤１０２と
多くの中空糸膜１００Ａとの間の熱膨張率の差、変形の
差、圧力により、ケース１０１とポッティング剤１０
２、ポッティング剤１０２と多くの中空糸膜１００Ａと
がどこかで剥離し、亀裂を生じ、中空糸膜モジュールの
ケース１００の端部からの原液漏れを起こすという問題
があった。However, the conventional technique in which the potting agent 102 is simply filled in the case 101 is weak against heat and weak against pressure. That is, when the working temperature such as the temperature of the undiluted solution to be filtered, the environmental temperature, or the pressure inside the case is high,
Due to the difference in the coefficient of thermal expansion, the difference in deformation, and the pressure between the plastic case 101, the potting agent 102, and many hollow fiber membranes 100A, the case 101 and the potting agent 10
2. There was a problem that the potting agent 102 and many hollow fiber membranes 100A were peeled off at some point and cracked, causing the stock solution to leak from the end of the case 100 of the hollow fiber membrane module.
【０００４】また、上記した中空糸膜モジュールにおい
て、ケース１０１の内，外部の圧力に対して強度をもた
すために、次に示すようなものがある。Further, in the above hollow fiber membrane module, there is the following one in order to have strength against pressure inside and outside the case 101.
【０００５】図１４に示す中空糸膜モジュールは、ケー
ス１０１の内側に、封止される端部に向って縮径となる
テーパ面１０３を形成したもので、ケース１０１の内部
（図中矢印Ｇ方向）からの圧力（内圧）に対する強度を
向上させている。しかしながら、逆方向（図中矢印Ｈ方
向）からの圧力（外圧）に対しては効果がない。The hollow fiber membrane module shown in FIG. 14 is formed by forming a tapered surface 103 having a diameter reduced toward the end to be sealed inside the case 101, and the inside of the case 101 (indicated by an arrow G in the figure). The strength against the pressure (internal pressure) from the direction) is improved. However, it has no effect on the pressure (external pressure) from the opposite direction (arrow H direction in the figure).
【０００６】また、図１５に示す中空糸膜モジュール
は、ケース１０１のポッティングされる端部の内側に突
起１０４を設けることで、内，外圧に対して強度を向上
させているものがある。しかしながら、アンダーカット
にて突起１０４を設けているため、大型の中空糸膜モジ
ュールの場合では内，外圧に対して強度を保てず、小さ
なもののみに適用されることになり、大きさが限られ
る。In some hollow fiber membrane modules shown in FIG. 15, a protrusion 104 is provided inside the potted end of the case 101 to improve the strength against internal and external pressures. However, since the protrusion 104 is provided by undercut, in the case of a large-sized hollow fiber membrane module, the strength cannot be maintained against internal and external pressures, and it is applied only to a small one. To be
【０００７】このように従来の中空糸膜モジュールにあ
っては、ケース１０１の内，外圧に対して充分な強度を
持っていない。As described above, the conventional hollow fiber membrane module does not have sufficient strength against the internal and external pressures of the case 101.
【０００８】本発明は、上記した従来技術の課題を解決
するためになされたもので、ケース端部において、中空
糸膜の束をケース外部と連通させながら封止する封止部
分を改良することにより、中空糸膜モジュールの耐熱性
を向上させ、また耐圧性を向上させ、品質と信頼性の向
上を図ることを目的とする。The present invention has been made to solve the above-mentioned problems of the prior art, and improves a sealing portion for sealing a bundle of hollow fiber membranes at the end of the case while communicating the bundle of hollow fiber membranes with the outside of the case. Thus, the heat resistance and the pressure resistance of the hollow fiber membrane module are improved, and the quality and reliability are improved.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に、本発明にあっては、中空糸膜の束をケースに装填
し、該ケース端部において、前記中空糸膜の束を前記ケ
ース外部と連通させながら封止している中空糸膜モジュ
ールにおいて、前記ケース端部を封止するためのポッテ
ィング剤を、前記ケース内側に注入するとともに、該ケ
ース内側に連続して前記ケース端面及び前記ケース外面
をも被って注入してなることを特徴とする。In order to achieve the above object, according to the present invention, a bundle of hollow fiber membranes is loaded in a case, and the bundle of hollow fiber membranes is provided at the end of the case. In a hollow fiber membrane module which is sealed while communicating with the outside, a potting agent for sealing the case end is injected into the case inside, and the case end surface and the case are continuously provided inside the case. It is characterized in that it is formed by covering the outer surface of the case as well.
【００１０】また、上記ケース端部にケース内側と外側
を貫通する貫通孔を設けても良い。A through hole may be provided at the end of the case so as to penetrate the inside and the outside of the case.
【００１１】[0011]
【作用】上記構成の中空糸膜モジュールにあっては、ケ
ースとポッティング剤との接着が、前記ケース内側にプ
ラスして前記ケース端面及び前記ケース外面でも連続し
ているから、原液の温度等の使用温度、環境温度、また
はケース内部の圧力が高くなって、温度，内圧による膨
張、熱変形が生じ、仮に、ケース内側において、ケース
内面、ポッティング剤、中空糸膜の間のどこかで剥離ま
たは亀裂が生じても、それがケース端面の剥離、ケース
外面の剥離につながる確率は小さくなる。従って、本発
明の場合、ケース端部の内側だけにポッティング剤を注
入した場合に比べて、温度が高くなった状態、ケースの
内圧が高くなった状態でのポッティング剤の剥離または
亀裂によるケースの端部からの原液漏れの確率が、確実
に小さくなる。In the hollow fiber membrane module having the above structure, since the case and the potting agent are adhered to the inside of the case and are continuous at the end surface of the case and the outer surface of the case, the temperature of the undiluted solution is The operating temperature, the ambient temperature, or the pressure inside the case rises, causing expansion and thermal deformation due to the temperature and internal pressure, and temporarily peeling off somewhere between the case inner surface, the potting agent, and the hollow fiber membrane inside the case. Even if a crack occurs, the probability that it will lead to peeling of the case end surface and peeling of the case outer surface is small. Therefore, in the case of the present invention, as compared with the case where the potting agent is injected only into the inside of the case end portion, the temperature of the case becomes higher, and the case is peeled off or cracked when the internal pressure of the case becomes higher. The probability of undiluted solution leaking from the end is certainly reduced.
【００１２】また、ケース端部にケース内側と外側を貫
通する貫通孔を設けることで、ケースとポッティング剤
との接着が、貫通孔を通じて上記したように行なわれる
ことから、貫通孔にポッティング剤が充填されてケース
の内側と外側とが一体的に封止されることになるので、
ケース内部からの圧力に対しても、またケース外部から
の圧力に対しても強度が増すことになる。従って、内，
外圧に対する耐圧性が向上する。Further, since the case and the potting agent are adhered to each other as described above by providing the through hole penetrating the inside and the outside of the case at the end portion of the case, the potting agent is attached to the through hole. Since it is filled and the inside and outside of the case are integrally sealed,
The strength is increased with respect to the pressure from inside the case and the pressure from the outside of the case. Therefore, within,
The pressure resistance against external pressure is improved.
【００１３】[0013]
【実施例】この発明の一実施例を図１から図７までを用
いて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS.
【００１４】１が中空糸膜モジュールのケースであっ
て、一般的にはプラスチックでできている。このプラス
チックのケース１は、筒状のもので、端部は開放されて
いる。Reference numeral 1 is a case of the hollow fiber membrane module, which is generally made of plastic. The plastic case 1 has a cylindrical shape and has an open end.
【００１５】２がケース１の内部に装填された中空糸膜
２Ａの束である。中空糸膜２Ａとは、図５に示すよう
に、例えば、１本１本が外径１ｍｍ程度、またはそれよ
り細い糸状のチューブであって、その筒の部分がろ過膜
となって、圧力差により、液体等の流体を外から内へ
（図中実線の矢印）、または内から外へ（図中点線の矢
印）透過させて、その流体の不純物の除去や必要成分の
濃縮を行うことができる。１本の中空糸膜２Ａではその
ろ過面積が小さく、従って、ろ過能力が小さいから、こ
れを数多く集めることによって、所定のろ過能力を得る
のである。Reference numeral 2 is a bundle of hollow fiber membranes 2A loaded inside the case 1. As shown in FIG. 5, the hollow fiber membrane 2A is, for example, a thread-like tube in which each one has an outer diameter of about 1 mm or is thinner than that, and the tube portion thereof serves as a filtration membrane, which causes a pressure difference. Allows liquids and other fluids to pass through from outside to inside (solid arrows in the figure) or from inside to outside (arrows in the figure) to remove impurities in the fluid and concentrate necessary components. it can. Since the filtration area of one hollow fiber membrane 2A is small and therefore the filtration capacity is small, a predetermined filtration capacity can be obtained by collecting a large number of the hollow fiber membranes 2A.
【００１６】この中空糸膜２Ａの束２を用いて、ろ過膜
モジュール即ち中空糸膜モジュールを作る構造例を図
６、図７に示す。6 and 7 show an example of a structure for producing a filtration membrane module, that is, a hollow fiber membrane module, using the bundle 2 of the hollow fiber membranes 2A.
【００１７】図６では、中空糸膜束２をそのまま筒状の
ケース１の中に装填して、ケース１の両端を、１本１本
の中空糸膜２Ａの筒内部はケース１の外部に連通させな
がら、中空糸膜２Ａの外側とケース１の内側との間を完
全に塞いでしまうのである（これを封止すると言う）。
例えば、ケース１の筒部には入り口４、出口８を設け
て、ろ過する原液を加圧して図中矢印Ａ→Ｂの如くケー
ス１内を流してやると、原液は中空糸膜２Ａの外側から
内側へ透過して、ケース１の封止した両端Ｃ，Ｄからは
ろ過された液が流れ出す。この原液とろ過された液との
流れ方は、クロスフロータイプである。In FIG. 6, the hollow fiber membrane bundle 2 is loaded as it is into a cylindrical case 1, and both ends of the case 1 are placed outside the case 1 inside the hollow fiber membrane 2A. While communicating with each other, the space between the outside of the hollow fiber membrane 2A and the inside of the case 1 is completely blocked (this is called sealing).
For example, if the inlet 4 and the outlet 8 are provided in the cylindrical portion of the case 1 and the undiluted solution to be filtered is pressurized and flowed through the case 1 as indicated by arrows A → B in the figure, the undiluted solution is fed from the outside of the hollow fiber membrane 2A. The filtered liquid permeates inward and flows out from both ends C and D of the case 1 which are sealed. The flow of the undiluted solution and the filtered solution is a cross flow type.
【００１８】図７では、中空糸膜束２をＵ字形に曲げ
て、ケース１の一端Ｅのみを、中空糸膜束２を通して、
封止する。そして開放されたままの他端Ｆからは、例え
ば加圧した原液を流し込むのである。そうすれば、封止
したＥ端からは、ケース１の外部と連通している中空糸
膜束２を通して、ろ過された液が流れ出す。この原液と
ろ過された液との流れ方は、全量ろ過タイプである。In FIG. 7, the hollow fiber membrane bundle 2 is bent into a U shape, and only one end E of the case 1 is passed through the hollow fiber membrane bundle 2 and
Seal. Then, for example, a pressurized stock solution is poured from the other end F which is still open. Then, the filtered liquid flows out from the sealed E end through the hollow fiber membrane bundle 2 communicating with the outside of the case 1. The flow of the undiluted solution and the filtered solution is a total volume filtration type.
【００１９】本発明の主題は、１本１本の中空糸膜２Ａ
の筒内部はケース１の外部に連通させながら、中空糸膜
２Ａの外側とケース１の内側との間を完全に塞いでしま
う封止のありかたについてであり、上記図６、図７に示
したクロスフロータイプ、全量ろ過タイプの何れについ
ても適用される。The subject of the present invention is that each hollow fiber membrane 2A
The inside of the cylinder is sealed so that the space between the outside of the hollow fiber membrane 2A and the inside of the case 1 is completely closed while communicating with the outside of the case 1. As shown in FIGS. It is applicable to both the cross flow type and the dead end filtration type.
【００２０】本発明の一実施例に係るケース１の端部の
封止の処理方法を説明しつつ、本発明の一実施例に係る
中空糸膜モジュールの封止部分の構成について以下に説
明する。The structure of the sealing portion of the hollow fiber membrane module according to one embodiment of the present invention will be described below, while explaining the method for processing the end sealing of the case 1 according to one embodiment of the present invention. .
【００２１】図１に示す通り、ケース１の封止する側の
端部の外側は所定長さだけほかのところよりも段を付け
て直径を小さくした段付き端部３としてある。As shown in FIG. 1, the outside of the end on the sealing side of the case 1 is a stepped end 3 which is stepped by a predetermined length and has a smaller diameter than the rest.
【００２２】次に、中空糸膜束２をケース１の中に装填
する前に、中空糸膜２Ａの端部をそろえてから、その中
空糸膜束２の端部の短い長さ分だけ（図２のａ）を例え
ば接着液に浸すとか、あるいは中空糸膜２Ａを溶解する
液に短時間浸すことにより、端部のａの長さ分だけを接
着または溶着させて中空糸膜２Ａの穴を塞いでおく。Next, before loading the hollow fiber membrane bundle 2 into the case 1, after aligning the end portions of the hollow fiber membrane 2A, a short length of the end portion of the hollow fiber membrane bundle 2 ( For example, by dipping a) of FIG. 2 in an adhesive solution, or by immersing it in a solution that dissolves the hollow fiber membrane 2A for a short time, only the length a of the end portion is adhered or welded to form a hole in the hollow fiber membrane 2A. Block it.
【００２３】次に、図３に示すように、中空糸膜束２を
ケース１の中に装填する。この場合、中空糸膜束２の端
部の一定長さをケース１の外部に出しておく。その長さ
は図２のａよりも長いものである。そしてポッティング
アダプタ５をケース１の段付き端部３を越えた部分まで
被せ、シールする。ポッティングアダプタ５には、注入
口６が付いているので、ここを通して、ケース１の端部
にポッティング剤７を注入し、凝固させる。ポッティン
グ剤７は、ケース１の内側と中空糸膜束２との間、中空
糸膜２Ａ相互の間だけではなく、ケース１の端面と、外
側の段付き端部３までも覆っている。しかし、中空糸膜
２Ａの穴は塞がれているから、ポッティング剤７は穴の
中へは入り込めない。Next, as shown in FIG. 3, the hollow fiber membrane bundle 2 is loaded into the case 1. In this case, a fixed length of the end portion of the hollow fiber membrane bundle 2 is exposed outside the case 1. Its length is longer than that of FIG. Then, the potting adapter 5 is covered up to the portion beyond the stepped end portion 3 of the case 1 and sealed. Since the potting adapter 5 has an injection port 6, the potting agent 7 is injected into the end of the case 1 through the injection port 6 to solidify it. The potting agent 7 covers not only the inside of the case 1 and the hollow fiber membrane bundle 2 and between the hollow fiber membranes 2A but also the end surface of the case 1 and the outer stepped end portion 3. However, since the hole of the hollow fiber membrane 2A is closed, the potting agent 7 cannot enter the hole.
【００２４】ポッティング剤７の凝固後、ポッティング
アダプタ５を外して、ケース１からはみ出ている中空糸
膜束２をカットする（図４参照）。After the potting agent 7 is solidified, the potting adapter 5 is removed and the hollow fiber membrane bundle 2 protruding from the case 1 is cut (see FIG. 4).
【００２５】このカットする位置は、中空糸膜２Ａの穴
がふさがっている長さａよりは大きく切り取ってしまう
が、ケース１の端部からはｂだけ外側にある位置であ
る。This cutting position is a position that is larger than the length a in which the hole of the hollow fiber membrane 2A is closed, but is located outside by b from the end of the case 1.
【００２６】この結果、中空糸膜２Ａの１本１本はケー
ス１の外部と連通し、ケース１の端部における封止状態
（封止部分）は、ポッティング剤７が中空糸膜２Ａそれ
ぞれの間、ケース１の内側と中空糸膜束２との間だけで
なく、ケース１の端面及び外側の段付き端部３までもつ
ながって覆っている形となる。As a result, each of the hollow fiber membranes 2A communicates with the outside of the case 1, and the potting agent 7 is in contact with each of the hollow fiber membranes 2A in the sealed state (sealed portion) at the end of the case 1. In addition, not only between the inside of the case 1 and the hollow fiber membrane bundle 2 but also the end face of the case 1 and the stepped end 3 on the outside are connected and covered.
【００２７】ケース１とポッティング剤７との接着が、
図４の中空糸膜モジュールの封止部分においては従来技
術で示した図１３の中空糸膜モジュールの封止状態にプ
ラスしてケース１の端面及びケース１の外面まで連続し
ているから、原液の温度等の使用温度、環境温度、また
はケース１の内部の圧力が高くなって、温度，内圧によ
る膨張、熱変形が生じ、仮に、ケース１の内側におい
て、ケース１の内面、ポッティング剤７、中空糸膜２Ａ
の間のどこかで剥離または亀裂が生じても、それがケー
ス１の端面の剥離、ケース１の外面の剥離につながる確
率は小さくなる。従って、図４の状態は図１３の状態に
比べて、温度が高くなった状態、内圧が高くなった状態
でのポッティング剤７の剥離または亀裂によるケース１
の端部からの原液漏れの確率が、確実に小さくなる。The adhesion between the case 1 and the potting agent 7 is
In the sealed portion of the hollow fiber membrane module of FIG. 4, the end face of the case 1 and the outer surface of the case 1 are continuous in addition to the sealed state of the hollow fiber membrane module of FIG. The operating temperature such as the temperature, the environmental temperature, or the pressure inside the case 1 becomes high, and expansion and thermal deformation due to the temperature and the internal pressure occur, so that the inner surface of the case 1, the potting agent 7, Hollow fiber membrane 2A
Even if peeling or cracking occurs somewhere in between, the probability that it will lead to peeling of the end surface of the case 1 and peeling of the outer surface of the case 1 is small. Therefore, the state of FIG. 4 is different from the state of FIG. 13 in the case 1 due to the peeling or cracking of the potting agent 7 in the state where the temperature is higher and the internal pressure is higher.
The probability of undiluted solution leaking from the end of is surely reduced.
【００２８】図８には、本発明の他の実施例に係る中空
糸膜モジュールが示されている。この実施例は、図８に
示すように上記第１実施例において、ケース１の段付き
端部３にケース１の内側と外側を貫通する貫通孔３１を
周方向に複数設け、この貫通孔３１を通じてポッティン
グ剤７を中空糸膜２Ａのそれぞれの間、ケース１の内側
と中空糸膜束２との間だけでなく、ケース１の外側即ち
ケース１の端面及び外側の段付き端部３までつながって
覆い、ケース１の内側と外側とを一体的に封止してい
る。FIG. 8 shows a hollow fiber membrane module according to another embodiment of the present invention. In this embodiment, as shown in FIG. 8, in the first embodiment, a plurality of through holes 31 penetrating the inside and outside of the case 1 are provided in the stepped end portion 3 of the case 1 in the circumferential direction. The potting agent 7 is connected not only between the hollow fiber membranes 2A and between the inside of the case 1 and the hollow fiber membrane bundle 2 but also to the outside of the case 1, that is, the end surface of the case 1 and the stepped end portion 3 on the outside. To cover the inside and outside of the case 1 integrally.
【００２９】このように貫通孔３１にポッティング剤７
が充填されてケース１の内側と外側とを一体的に封止し
ているので、ケース１の内部からの流れ（図中Ｉ方向）
に対する圧力に対しても、またケース１の外部からの流
れ（図中Ｊ方向）に対する圧力に対しても、充分な強度
を持つことになる。従って、内，外圧に対する耐圧性の
向上を図ることができる。In this way, the potting agent 7 is placed in the through hole 31.
Is filled to seal the inside and outside of the case 1 integrally, so the flow from the inside of the case 1 (direction I in the figure)
Sufficient strength is exerted against the pressure applied to the case 1 and the pressure applied to the flow from the outside of the case 1 (direction J in the figure). Therefore, it is possible to improve the pressure resistance against the internal and external pressures.
【００３０】尚、耐圧性の向上は小さくなるが、貫通孔
３１は一つでも良い。Although the improvement in pressure resistance is small, the number of through holes 31 may be one.
【００３１】以下に、本発明の他の実施例に係るケース
１の端部の封止の処理方法を説明しつつ、上記した本発
明の他の実施例に係る中空糸膜モジュールの封止部分の
構成について図９乃至図１２及び図２に基づいて説明す
る。A method for sealing the end portion of the case 1 according to another embodiment of the present invention will be described below, and the sealing portion of the hollow fiber membrane module according to another embodiment of the present invention described above. The configuration will be described with reference to FIGS. 9 to 12 and 2.
【００３２】図９に示す通り、ケース１の封止する側の
端部の外側は所定長さだけほかのところよりも段を付け
て直径を小さくした段付き端部３とし、その段付き端部
３にケース１の内側と外側を貫通する貫通孔３１を周方
向に複数設けてある。As shown in FIG. 9, the outside of the end on the sealing side of the case 1 is a stepped end 3 having a diameter smaller than that of the other portions by a predetermined length, and the stepped end 3 is formed. A plurality of through holes 31 penetrating the inside and the outside of the case 1 are provided in the portion 3 in the circumferential direction.
【００３３】次に、中空糸膜束２をケース１の中に装填
する前に、中空糸膜２Ａの端部をそろえてから、その中
空糸膜束２の端部の短い長さ分だけ（図２のａ）を例え
ば接着液に浸すとか、あるいは中空糸膜２Ａを溶解する
液に短時間浸すことにより、端部のａの長さ分だけを接
着または溶着させて中空糸膜２Ａの穴を塞いでおく。Next, before loading the hollow fiber membrane bundle 2 into the case 1, after aligning the end portions of the hollow fiber membranes 2A, a short length of the end portion of the hollow fiber membrane bundle 2 ( For example, by dipping a) of FIG. 2 in an adhesive solution, or by immersing it in a solution that dissolves the hollow fiber membrane 2A for a short time, only the length a of the end portion is adhered or welded to form a hole in the hollow fiber membrane 2A. Block it.
【００３４】次に、図１０に示すように、中空糸膜束２
をケース１の中に装填する。この場合、中空糸膜束２の
端部の一定長さをケース１の外部に出しておく。その長
さは図２のａよりも長いものである。そしてポッティン
グアダプタ５をケース１の段付き端部３を越えた部分ま
で被せ、シールする。ポッティングアダプタ５には、注
入口６が付いているので、ここを通して、ケース１の端
部にポッティング剤７を注入し、凝固させる。ポッティ
ング剤７は、貫通孔３１を通じてケース１の内側と中空
糸膜束２との間、中空糸膜２Ａ相互の間だけではなく、
ケース１の外側即ちケース１の端面と、外側の段付き端
部３までも覆っている。しかし、中空糸膜２Ａの穴は塞
がれているから、ポッティング剤７は穴の中へは入り込
めない。Next, as shown in FIG. 10, the hollow fiber membrane bundle 2
In the case 1. In this case, a fixed length of the end portion of the hollow fiber membrane bundle 2 is exposed outside the case 1. Its length is longer than that of FIG. Then, the potting adapter 5 is covered up to the portion beyond the stepped end portion 3 of the case 1 and sealed. Since the potting adapter 5 has an injection port 6, the potting agent 7 is injected into the end of the case 1 through the injection port 6 to solidify it. Not only between the inside of the case 1 and the hollow fiber membrane bundle 2 and between the hollow fiber membranes 2A through the through holes 31, the potting agent 7
It covers the outside of the case 1, that is, the end face of the case 1 and even the stepped end 3 on the outside. However, since the hole of the hollow fiber membrane 2A is closed, the potting agent 7 cannot enter the hole.
【００３５】ポッティング剤７の凝固後、ポッティング
アダプタ５を外して、ケース１からはみ出ている中空糸
膜束２をカットする（図１１参照）。After the potting agent 7 is solidified, the potting adapter 5 is removed and the hollow fiber membrane bundle 2 protruding from the case 1 is cut (see FIG. 11).
【００３６】このカットする位置は、中空糸膜２Ａの穴
がふさがっている長さａよりは大きく切り取ってしまう
が、ケース１の端部から外側にある位置（図中点線部）
である。The cut position is larger than the length a in which the hole of the hollow fiber membrane 2A is closed, but the position is outside the end of the case 1 (dotted line in the figure).
It is.
【００３７】この結果、図１２に示すように中空糸膜２
Ａの１本１本はケース１の外部と連通し、ケース１の端
部における封止状態（封止部分）は、ポッティング剤７
が貫通孔３１を通じて中空糸膜２Ａそれぞれの間、ケー
ス１の内側と中空糸膜束２との間だけでなく、ケース１
の外側即ちケース１の端面及び外側の段付き端部３まで
もつながって覆っている形となる。As a result, as shown in FIG. 12, the hollow fiber membrane 2
Each of A communicates with the outside of the case 1, and the sealed state (sealed portion) at the end of the case 1 is the potting agent 7
Not only between the hollow fiber membranes 2A through the through holes 31 and between the inside of the case 1 and the hollow fiber membrane bundle 2, but also the case 1
The outer side, that is, the end surface of the case 1 and the outer stepped end portion 3 are also connected and covered.
【００３８】[0038]
【発明の効果】本発明は、以上の構成及び作用を有する
もので、中空糸膜の束をケースに装填し、該ケース端部
において、前記中空糸膜の束を前記ケース外部と連通さ
せながら封止している中空糸膜モジュールにおいて、前
記ケース端部を封止するためのポッティング剤を、前記
ケース内側に注入するとともに、該ケース内側に連続し
て前記ケース端面及び前記ケース外面をも被って注入し
てなることとしたから、原液の温度等の使用温度、環境
温度、またはケース内部の圧力が高くなって、温度，圧
力による膨張、熱変形が生じ、仮に、ケース内側におい
て、ケース内面、ポッティング剤、中空糸膜の間のどこ
かで剥離または亀裂が生じても、それがケース端面の剥
離、ケース外面の剥離につながる確率は小さくなる。従
って、ケース端部の内側だけにポッティング剤を注入し
た場合に比べて、温度が高くなった状態でのポッティン
グ剤の剥離または亀裂による、ケースの封止した端部か
らの原液漏れの確率が、確実に小さくなる。EFFECTS OF THE INVENTION The present invention has the above-described structure and action, and is arranged such that a bundle of hollow fiber membranes is loaded in a case and the bundle of hollow fiber membranes is communicated with the outside of the case at the end of the case. In the sealed hollow fiber membrane module, a potting agent for sealing the end portion of the case is injected into the inside of the case and continuously covers the end surface of the case and the outer surface of the case as well. Since it was decided to inject the liquid, the operating temperature such as the temperature of the undiluted solution, the environmental temperature, or the pressure inside the case becomes high, causing expansion and thermal deformation due to temperature and pressure. Even if peeling or cracking occurs anywhere between the potting agent and the hollow fiber membrane, the probability that it will lead to peeling of the case end surface and peeling of the case outer surface is small. Therefore, compared with the case where the potting agent is injected only inside the case end, the probability of undiluted solution leaking from the sealed end of the case due to peeling or cracking of the potting agent when the temperature is high, Will definitely get smaller.
【００３９】また、ケース端部にケース内側と外側を貫
通する貫通孔を設けることで、ケースとポッティング剤
との接着が、貫通孔を通じて上記したように行なわれる
ことから、貫通孔にポッティング剤が充填されてケース
の内側と外側とを一体的に封止されることになるので、
ケース内部からの圧力に対しても、またケース外部から
の圧力に対しても強度が増すことになり、内，外圧に対
する耐圧性の向上を図ることができる。Further, since the case and the potting agent are adhered to each other as described above by providing the through hole penetrating the inside and the outside of the case at the end portion of the case, the potting agent is attached to the through hole. Since it will be filled and the inside and outside of the case will be integrally sealed,
The strength is increased with respect to the pressure from the inside of the case and the pressure from the outside of the case, and the pressure resistance against the internal and external pressures can be improved.
【００４０】以上により、中空糸膜モジュールの耐熱性
を向上させ、また耐圧性を向上させ、品質と信頼性の向
上を図ることができた。As described above, the heat resistance and the pressure resistance of the hollow fiber membrane module were improved, and the quality and reliability could be improved.
【図１】図１は本発明の一実施例に係る中空糸膜モジュ
ールのケース端部の断面図。FIG. 1 is a cross-sectional view of a case end portion of a hollow fiber membrane module according to an embodiment of the present invention.
【図２】図２は図１のケースに装填する前の中空糸膜の
束の概略側面図。FIG. 2 is a schematic side view of a bundle of hollow fiber membranes before being loaded in the case of FIG.
【図３】図３は中空糸膜の束の装填後に、ケース端部に
対してポッティングアダプタを被せた状態の断面図。FIG. 3 is a cross-sectional view of a state in which a potting adapter is put on the end of the case after loading the bundle of hollow fiber membranes.
【図４】図４は本発明の一実施例に係る中空糸膜モジュ
ールの封止した端部の断面図。FIG. 4 is a cross-sectional view of a sealed end portion of a hollow fiber membrane module according to an embodiment of the present invention.
【図５】図５は中空糸膜の部分図。FIG. 5 is a partial view of a hollow fiber membrane.
【図６】図６は中空糸膜モジュールの構造例の断面図。FIG. 6 is a cross-sectional view of a structural example of a hollow fiber membrane module.
【図７】図７は中空糸膜モジュールの別な構造例の断面
図。FIG. 7 is a sectional view of another structural example of the hollow fiber membrane module.
【図８】図８は本発明の他の実施例に係る中空糸膜モジ
ュールの封止した端部の断面図。FIG. 8 is a sectional view of a sealed end portion of a hollow fiber membrane module according to another embodiment of the present invention.
【図９】図９は本発明の他の実施例に係る中空糸膜モジ
ュールのケース端部の半断面図。FIG. 9 is a half cross-sectional view of a case end portion of a hollow fiber membrane module according to another embodiment of the present invention.
【図１０】図１０は中空糸膜の束の装填後に、本発明の
他の実施例に係るケース端部に対してポッティングアダ
プタを被せた状態の半断面図。FIG. 10 is a half cross-sectional view of a state in which a potting adapter is put on the case end portion according to another embodiment of the present invention after the bundle of hollow fiber membranes is loaded.
【図１１】図１１はポッティング工程終了後であってカ
ット位置を示す半断面図。FIG. 11 is a half cross-sectional view showing a cutting position after the potting process is completed.
【図１２】図１２は封止部をカットした後のケース端部
の半断面図。FIG. 12 is a half cross-sectional view of the end portion of the case after cutting the sealing portion.
【図１３】図１３は従来の中空糸膜モジュールの封止し
た端部の断面図。FIG. 13 is a sectional view of a sealed end portion of a conventional hollow fiber membrane module.
【図１４】図１４は他の従来の中空糸膜モジュールの断
面図。FIG. 14 is a cross-sectional view of another conventional hollow fiber membrane module.
【図１５】図１５は他の従来の中空糸膜モジュールの断
面図。FIG. 15 is a cross-sectional view of another conventional hollow fiber membrane module.
１ ケース ２ 中空糸膜束 ２Ａ 中空糸膜 ３ 段付き端部 ３１ 貫通孔 ４ 入り口 ５ ポッティングアダプタ ６ 注入口 ７ ポッティング剤 ８ 出口 1 Case 2 Hollow Fiber Membrane Bundle 2A Hollow Fiber Membrane 3 Stepped End 31 Through Hole 4 Inlet 5 Potting Adapter 6 Injection Port 7 Potting Agent 8 Outlet
Claims (2)
ス端部において、前記中空糸膜の束を前記ケース外部と
連通させながら封止している中空糸膜モジュールにおい
て、 前記ケース端部を封止するためのポッティング剤を、前
記ケース内側に注入するとともに、該ケース内側に連続
して前記ケース端面及び前記ケース外面をも被って注入
してなることを特徴とする中空糸膜モジュール。1. A hollow fiber membrane module in which a bundle of hollow fiber membranes is loaded in a case and the bundle of hollow fiber membranes is sealed at the end of the case while communicating with the outside of the case. A hollow fiber membrane module characterized in that a potting agent for sealing a part is injected into the inside of the case, and is continuously injected into the inside of the case so as to cover the end face of the case and the outer surface of the case as well. .
る貫通孔を設けたことを特徴とする請求項１に記載の中
空糸膜モジュール。2. The hollow fiber membrane module according to claim 1, wherein a through hole penetrating the inside and the outside of the case is provided at the end of the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03906095A JP3324900B2 (en) | 1994-07-18 | 1995-02-03 | Hollow fiber membrane module |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6-187758 | 1994-07-18 | ||
| JP18775894 | 1994-07-18 | ||
| JP03906095A JP3324900B2 (en) | 1994-07-18 | 1995-02-03 | Hollow fiber membrane module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0884914A true JPH0884914A (en) | 1996-04-02 |
| JP3324900B2 JP3324900B2 (en) | 2002-09-17 |
Family
ID=26378375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03906095A Expired - Lifetime JP3324900B2 (en) | 1994-07-18 | 1995-02-03 | Hollow fiber membrane module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3324900B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990002822A1 (en) * | 1988-09-06 | 1990-03-22 | Vesuvius Crucible Company | Refractory liner compositions |
| KR100228875B1 (en) * | 1997-07-28 | 1999-11-01 | 장재영 | Process for producing hollow fiber filter |
| JP2008105030A (en) * | 2007-12-25 | 2008-05-08 | Nikkiso Co Ltd | Centrifugal fluid dispensing device and centrifugal fluid dispensing method |
| JP2010234308A (en) * | 2009-03-31 | 2010-10-21 | Asahi Kasei Kuraray Medical Co Ltd | Jig for filling and method for manufacturing fluid treatment container |
| KR101340671B1 (en) * | 2011-12-27 | 2013-12-12 | 코오롱인더스트리 주식회사 | Header for Filtration Memebrane and Filtration Memebrane Module Having The Same |
| CN111110940A (en) * | 2019-12-24 | 2020-05-08 | 东莞科威医疗器械有限公司 | Oxygenator, centrifugal glue-pouring sealing enhanced bonding structure and forming process thereof |
| CN112827362A (en) * | 2021-03-04 | 2021-05-25 | 韩佳（上海）环保设备有限公司 | End socket, ultrafiltration membrane element and manufacturing method of ultrafiltration membrane element |
| WO2023276414A1 (en) * | 2021-06-30 | 2023-01-05 | Nok株式会社 | Hollow fiber membrane module |
-
1995
- 1995-02-03 JP JP03906095A patent/JP3324900B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990002822A1 (en) * | 1988-09-06 | 1990-03-22 | Vesuvius Crucible Company | Refractory liner compositions |
| KR100228875B1 (en) * | 1997-07-28 | 1999-11-01 | 장재영 | Process for producing hollow fiber filter |
| JP2008105030A (en) * | 2007-12-25 | 2008-05-08 | Nikkiso Co Ltd | Centrifugal fluid dispensing device and centrifugal fluid dispensing method |
| JP4685087B2 (en) * | 2007-12-25 | 2011-05-18 | 日機装株式会社 | Centrifugal fluid dispensing jig and centrifugal fluid dispensing method |
| JP2010234308A (en) * | 2009-03-31 | 2010-10-21 | Asahi Kasei Kuraray Medical Co Ltd | Jig for filling and method for manufacturing fluid treatment container |
| KR101340671B1 (en) * | 2011-12-27 | 2013-12-12 | 코오롱인더스트리 주식회사 | Header for Filtration Memebrane and Filtration Memebrane Module Having The Same |
| CN111110940A (en) * | 2019-12-24 | 2020-05-08 | 东莞科威医疗器械有限公司 | Oxygenator, centrifugal glue-pouring sealing enhanced bonding structure and forming process thereof |
| CN112827362A (en) * | 2021-03-04 | 2021-05-25 | 韩佳（上海）环保设备有限公司 | End socket, ultrafiltration membrane element and manufacturing method of ultrafiltration membrane element |
| WO2023276414A1 (en) * | 2021-06-30 | 2023-01-05 | Nok株式会社 | Hollow fiber membrane module |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3324900B2 (en) | 2002-09-17 |
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