JPH0724741B2 - End face repair method - Google Patents
End face repair methodInfo
- Publication number
- JPH0724741B2 JPH0724741B2 JP22807886A JP22807886A JPH0724741B2 JP H0724741 B2 JPH0724741 B2 JP H0724741B2 JP 22807886 A JP22807886 A JP 22807886A JP 22807886 A JP22807886 A JP 22807886A JP H0724741 B2 JPH0724741 B2 JP H0724741B2
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- module
- face
- adhesive
- repair method
- 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.)
- Expired - Lifetime
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
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。The present invention relates to a method for repairing an end surface of a hollow fiber membrane module,
More specifically, the present invention relates to a method capable of completely and simply repairing a leak point 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。A fluid separation device using a hollow fiber membrane module is widely used for various industrial liquid treatments, gas treatments, and medical treatments.
〔従来の技術〕 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。[Prior Art] Conventionally, as the above-mentioned repair method, a transfer method of applying a transfer material (JP-A-59-179107) and a repair method by blowing air (JP-A-59-1790108) have been proposed. ing.
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、内径の小さい中空糸の場
合、中空開口部の目つぶれがでやすいといつた欠点があ
つた。In the transfer method, it is difficult to prevent the opening of the screen from coming into contact with the hollow fiber opening, and in the case of a hollow fiber having a small inner diameter, there is a drawback that the hollow opening is likely to be crushed.
送風による補修法も送風しながら他端面に塗布すると樹
脂が端面に付きにくく一度中空糸開口部に入ると詰まつ
たままとなり閉塞される中空糸が多くなるといつた欠点
があつた。Even if the repair method by blowing air is applied to the other end surface while blowing air, it is difficult for the resin to adhere to the end surface, and once it enters the hollow fiber opening, it remains clogged and there is a drawback that many hollow fibers are clogged.
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つてい
た。この様な目つぶれは、有効過面積を減少させるだ
けでなく、モジュール内に液滞留部ができ菌の増殖など
の問題も発生する。In particular, when repairing both end faces, the blown air is likely to be particularly uneven and the end faces to be repaired later tend to be blunted. Such blunting not only reduces the effective excess area, but also creates a liquid retention portion in the module, which causes problems such as bacterial growth.
このような状況に鑑み、かゝ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 such a situation, as a result of diligent studies on these points, a method for completely repairing a leak due to defective adhesion by a simple operation was found, and the present invention was completed.
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つて中空
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, according to the present invention, in a module in which a plurality of hollow fiber membranes bundled in parallel are bonded and fixed to each other by a casting resin so that the hollow fiber membranes are opened at both ends, spraying an adhesive on the end faces. It is a method of applying and repairing the end face without blocking the hollow fiber membrane opening by the air pressure of the spray.
かゝ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 above-mentioned adhesive to the end face by spraying by such an operation, the adhesive is favorably attached to the end face and the hollow fiber membrane opening, so that the adhesive can be repaired completely and easily.
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10〜3000cp、
好ましくは100〜500cp、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。ス
プレーで付与する場合の空気圧力は0.5〜6kg/cm2、好ま
しくは１〜3kg/cm2の圧力で塗付するのが良い。接着剤
の塗布量は、端面に50〜500μｍ、好ましくは100〜300
μｍの厚みに塗布するのが良い。The adhesive in the present invention usually has a viscosity (measurement method; B-type viscometer, measurement temperature; 25 ° C.) of 10 to 3000 cp,
The resin is not particularly limited as long as it is preferably 100 to 500 cp, but it is preferable to use the same type of casting resin as the module, for example, epoxy resin. The method of applying the adhesive to the module end surface is performed by spraying. When applied by spraying, the air pressure is preferably 0.5 to 6 kg / cm 2 , preferably 1 to 3 kg / cm 2 . The amount of adhesive applied is 50 to 500 μm, preferably 100 to 300, on the end face.
It is better to apply it to a thickness of μm.
〔発明の効果〕 本発明によれば、モジュール中空糸開口部を閉塞するこ
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。[Advantages of the Invention] According to the present invention, the adhesive can be applied to the module end face without blocking the module hollow fiber opening, so that the defective adhesion portion on the module end face can be repaired completely and easily. There is an advantage that the appearance of the end face, especially the smoothness of the surface is very good.
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 described 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89mm、長さ1,126mmのポリスルホン製筒状ケ
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を水
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
離と云つた接着不良によるリークが数ヶ所より発生して
いることを確認した。Example Polysulfone hollow fiber membrane 3200 having an inner diameter of 700 μm and a film thickness of 270 μm
The book is stored in a polysulfone cylindrical case with an inner diameter of 89 mm and a length of 1,126 mm, both ends are adhesively fixed with epoxy resin, and both ends are cut so that the hollow fiber membrane is opened after the resin cures. Got the module. The end face of this module was immersed in water, pressurized gas was supplied to the outside of the hollow fiber membrane, and the leak was examined from the generation of air bubbles.There were several leaks due to poor adhesion such as peeling between the hollow fiber membrane and the adhesive. It was confirmed that it occurred more.
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1.5kg/cm2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
つた。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つた。First, an epoxy resin adhesive having a viscosity (measurement method; measured by B-type viscometer; measurement temperature; 25 ° C.) of 500 cp was uniformly applied to one end surface of the module by an air spray. The air pressure at that time was 1.5 kg / cm 2 , and the film thickness was about 200 μm. Leave it for about 1 hour, apply the same adhesive to the other end,
After left for 1 hour to solidify, it was cured at 50 ° C. for about 8 hours. The module thus obtained was subjected to a leak test again, but no leak part was found.
Claims (1)
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
スプレーで付与し中空糸膜開口部端面を補修する方法1. A module comprising a plurality of hollow fiber membranes that are bundled in parallel and bonded to each other with a casting resin so that the hollow fiber membranes are opened at both ends of the hollow fiber membranes. Method for repairing end face of hollow fiber membrane opening
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 JPS6384606A (en) | 1988-04-15 |
| JPH0724741B2 true 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 |
|---|---|
| JPS6384606A (en) | 1988-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |