JPS6384606A - Method for repairing end face - Google Patents
Method for repairing end faceInfo
- Publication number
- JPS6384606A JPS6384606A JP22807886A JP22807886A JPS6384606A JP S6384606 A JPS6384606 A JP S6384606A JP 22807886 A JP22807886 A JP 22807886A JP 22807886 A JP22807886 A JP 22807886A JP S6384606 A JPS6384606 A JP S6384606A
- Authority
- JP
- Japan
- Prior art keywords
- face
- module
- adhesive
- hollow yarn
- hollow fiber
- 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
- 238000000034 method Methods 0.000 title abstract description 11
- 239000012528 membrane Substances 0.000 claims abstract description 23
- 239000000853 adhesive Substances 0.000 claims abstract description 14
- 230000001070 adhesive effect Effects 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- 230000008439 repair process Effects 0.000 claims abstract description 9
- 238000005507 spraying Methods 0.000 claims abstract description 5
- 239000012510 hollow fiber Substances 0.000 claims description 20
- 238000005266 casting Methods 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 abstract description 5
- 229920000647 polyepoxide Polymers 0.000 abstract description 5
- 230000002950 deficient Effects 0.000 abstract description 4
- 229920002492 poly(sulfone) Polymers 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 101100438748 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) cyt-2 gene Proteins 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、中空糸膜モジュールの端面補修方法に関し、
さらに詳しくはモジュールの端面におけるリーク箇所を
完全かつ簡便に補修することのできる方法に関するもの
である。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for repairing the end face of a hollow fiber membrane module,
More specifically, the present invention relates to a method for completely and easily repairing leak points on the end face of a module.
中空糸膜モジュールを用いた流体分離装置は、各種工業
用液体の処理、気体の処理及び医療用として、広く使用
されているものである。Fluid separation devices using hollow fiber membrane modules are widely used for processing various industrial liquids, gases, and medical applications.
従来、上記の補修方法として、転与材を塗布する転与法
（特開昭５９−１７９１０７号公報）、送風による補修
法（特開昭５９−１７９０１０８号公報）が提案されて
いる。Hitherto, as the above-mentioned repair methods, a transfer method in which a transfer material is applied (Japanese Patent Laid-Open No. 179107/1983) and a repair method using air blowing (Japanese Patent Laid-Open No. 1790108/1989) have been proposed.
転写法ではスクリーンのオープニング部を中空糸開口部
に接触させない方法は難しく、内径の／卦さい中空糸の
場合、中空開口部の目つぶれがでやすいといった欠点が
あった。In the transfer method, it is difficult to prevent the opening part of the screen from coming into contact with the hollow fiber openings, and in the case of hollow fibers with a small inner diameter, the hollow openings tend to be closed.
送風による補修法も送風しなから他端面に塗布すると樹
脂が端面に付きＫ＜＜−度中空糸開口部に入ると詰まっ
たままとなり閉塞される中空糸が多くなるといった欠点
があった。The repair method using air blowing also has the drawback that if the resin is applied to the other end face without air blowing, the resin will stick to the end face and if it enters the hollow fiber opening, it will remain clogged and more hollow fibers will become occluded.
特に、両端面を補修する場合、後から補修する端面は送
風が特に不均一になりやすく目つぶれが多くなっていた
。この様な目つぶれは、有効濾過面積を減少させるだけ
でなく、モジュール内に液溜留部ができ菌の増殖などの
問題も発生する。In particular, when both end faces are repaired, the end faces to be repaired later tend to be particularly prone to uneven air blowing, resulting in many blind spots. Such a closed eye not only reduces the effective filtration area, but also causes problems such as the formation of a liquid reservoir inside the module and the growth of bacteria.
このような状況に鑑み、か〜る点について鋭意検討した
結果接着不良によるリークが簡単な操作により完全に補
修できる方法を見い出し、本発明を完成させた。In view of this situation, as a result of intensive study on these points, we have found a method that can completely repair leaks due to poor adhesion with simple operations, and have completed the present invention.
即ち、本発明は、複数本平行に集束された中空糸膜の両
端部で中空糸膜が開口するように膜相互が注型樹脂によ
り接着固定されてなるモジュールにおいて、端面に接着
剤をスプレーで付与し、スプレーの空気圧によって中空
糸膜開口部を閉塞させないで端面を補修する方法である
。That is, the present invention provides a module in which a plurality of hollow fiber membranes are bundled in parallel and the membranes are adhesively fixed to each other with casting resin so that the hollow fiber membranes are open at both ends, and the membranes are adhesively fixed to each other with casting resin. This method repairs the end face of the hollow fiber membrane without clogging the opening of the hollow fiber membrane using the air pressure of the spray.
か〜る操作により上記接着剤は、スプレーで端面に付与
することにより、その端面と中空糸膜開口部に良好に付
着されるので完全かつ簡便に補修できる。By applying the adhesive to the end face by spraying in this manner, the adhesive adheres well to the end face and the opening of the hollow fiber membrane, so that the repair can be completed and easily performed.
本発明における接着剤としては、通常その粘度（測定方
法；Ｂ型粘度計による、測定温度；２５℃）が１０〜３
０００ｃｐ、好ましくは１００〜５００Ｃｐ。The adhesive used in the present invention usually has a viscosity (measurement method: B-type viscometer, measurement temperature: 25°C) of 10 to 3.
000 cp, preferably 100-500 cp.
のものであれば特に限定されないが、モジュールを構成
している注型樹脂例えばエポキシ樹脂と同種のものを用
いるのが好ましい。上記接着剤をモジュール端面に付与
する方法はスプレーで行う。Although there are no particular limitations as long as the resin is of the same type as the casting resin, such as an epoxy resin, that constitutes the module, it is preferable to use the same type of resin. The adhesive is applied to the end face of the module by spraying.
スプレーで付与する場合の空気圧力は０．５〜６に９／
ｃｒｙ？、好ましくは１〜３ゆ／α：の圧力で塗付する
のが良い。接着剤の塗付量は、端面に５０〜５００μｍ
１好ましくは１００〜３００μｍの厚みに塗布するのが
良い。When applying by spray, the air pressure is 0.5 to 6 to 9/
Cry? , preferably at a pressure of 1 to 3 Y/α. The amount of adhesive applied is 50 to 500 μm on the end surface.
1. It is preferable to apply the coating to a thickness of 100 to 300 μm.
本発明によれば、モジュール中空糸間ロ部ヲ閉基するこ
となく上記接着剤をモジュール端面に付与させることが
できるためモジュール端面における接着不良箇所を完全
かつ簡便に補修でき、また、端面の外観、特に表面の平
滑性が非常に良くなるという利点がある。According to the present invention, since the adhesive can be applied to the end face of the module without closing the area between the module hollow fibers, it is possible to repair defective adhesion on the end face of the module completely and easily, and the appearance of the end face is In particular, it has the advantage of very good surface smoothness.
以下、実施例により本発明を具体的に説明する。 Hereinafter, the present invention will be specifically explained with reference to Examples.
実施例
内径７００μｍ、膜厚２７０μｍのポリスルホン中空糸
膜３２００本を、内径８９ｊＥＩＥ、長さ１．１２ｆｌ
＋ｔ＋ａのポリスルホン裂筒状ケースに収納し、両端を
エポキシ樹脂で接着固定し、樹脂硬化後中空糸膜が開口
するように両端部を切断して中空糸膜分離モジュールを
得た。このモジュールの端面な水中に浸漬し加圧ガスを
中空糸膜外側に供給し、気泡の発生からリークを調べた
ところ、中空糸膜と接着剤との剥離と云った接着不良に
よるリークが数ケ所より発生していることを確認した。Example: 3200 polysulfone hollow fiber membranes with an inner diameter of 700 μm and a membrane thickness of 270 μm, an inner diameter of 89JEIE and a length of 1.12fl.
It was housed in a +t+a polysulfone split cylindrical case, both ends were adhesively fixed with epoxy resin, and after the resin had hardened, both ends were cut to open the hollow fiber membrane to obtain a hollow fiber membrane separation module. When we immersed the end of this module in water and supplied pressurized gas to the outside of the hollow fiber membrane to check for leaks from the generation of air bubbles, we found that there were several leaks due to poor adhesion, such as separation between the hollow fiber membrane and the adhesive. We confirmed that this was occurring.
まずモジュールの一端面に粘度（測定方法：Ｂ型粘度計
による、測定温度；２５℃） ５００ｃｐのエポキシ樹
脂接着剤をエヤースプレーで端面に均一に塗布した。そ
の時のエヤー圧は１．５ ｋｇ／ｃｙｔ２で、膜厚は約
２００μｍとなるよう吹きつけた。約１時間放置し、他
端面に同様に接着剤を塗布し、１時間放置し、固化させ
た後、５０℃で約８時間硬化を行った。このようにして
得られたモジュールを再度リークテストをしたが、リー
ク箇所は全く認められなかった。First, an epoxy resin adhesive having a viscosity (measurement method: B-type viscometer, measurement temperature: 25° C.) of 500 cp was uniformly applied to one end surface of the module by air spray. The air pressure at that time was 1.5 kg/cyt2, and the air was blown so that the film thickness was approximately 200 μm. The adhesive was left to stand for about 1 hour, and the adhesive was similarly applied to the other end face, left to stand for 1 hour to solidify, and then hardened at 50° C. for about 8 hours. The module thus obtained was subjected to a leak test again, but no leaks were found.
Claims (1)
開口するように膜相互が注型樹脂により接着固定されて
なるモジュールにおいて、端面に接着剤をスプレーで付
与し中空糸膜開口部端面を補修する方法In a module in which multiple hollow fiber membranes are bundled in parallel and the membranes are adhesively fixed to each other with casting resin so that the hollow fiber membranes open at both ends, the hollow fiber membranes are opened by applying adhesive to the end faces by spraying. How to repair the end face of a part
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22807886A JPH0724741B2 (en) | 1986-09-29 | 1986-09-29 | End face repair method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22807886A JPH0724741B2 (en) | 1986-09-29 | 1986-09-29 | End face repair method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6384606A true JPS6384606A (en) | 1988-04-15 |
| JPH0724741B2 JPH0724741B2 (en) | 1995-03-22 |
Family
ID=16870846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22807886A Expired - Lifetime JPH0724741B2 (en) | 1986-09-29 | 1986-09-29 | End face repair method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0724741B2 (en) |
-
1986
- 1986-09-29 JP JP22807886A patent/JPH0724741B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0724741B2 (en) | 1995-03-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |