JP2529726B2 - Hollow fiber type membrane module - Google Patents
Hollow fiber type membrane moduleInfo
- Publication number
- JP2529726B2 JP2529726B2 JP63259184A JP25918488A JP2529726B2 JP 2529726 B2 JP2529726 B2 JP 2529726B2 JP 63259184 A JP63259184 A JP 63259184A JP 25918488 A JP25918488 A JP 25918488A JP 2529726 B2 JP2529726 B2 JP 2529726B2
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- membrane module
- type membrane
- fiber type
- 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.)
- Expired - Fee Related
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、中空糸とエポキシ接着封止層との界面を補
強した、外力によるリークの発生の少ない中空糸型膜モ
ジュールに関するものである。Description: TECHNICAL FIELD The present invention relates to a hollow fiber type membrane module in which the interface between a hollow fiber and an epoxy adhesive sealing layer is reinforced and leakage due to external force is less likely to occur.
逆浸透法装置、限外濾過装置、あるいは精密濾過装置
の心臓部である半透膜モジュールは用途に応じて各種の
形式のものが用いられており、その中の1つである中空
糸型膜モジュールは、長さ100〜2000mm、外径0.02〜2mm
φ程度で数十本〜数万本の中空糸束を含有しており、端
部の接着封止は、主としてエポキシ系接着剤によって封
止されている。Various types of semipermeable membrane modules, which are the heart of reverse osmosis equipment, ultrafiltration equipment, or microfiltration equipment, are used depending on the application, and one of them is a hollow fiber type membrane. The module has a length of 100 to 2000 mm and an outer diameter of 0.02 to 2 mm
It contains several tens to tens of thousands of hollow fiber bundles of about φ, and the adhesive sealing at the ends is mainly sealed with an epoxy adhesive.
この様な中空糸型膜モジュールは、コンパクトなこと
より、各分野で広く用いられている。Since such a hollow fiber type membrane module is compact, it is widely used in various fields.
中空糸型膜モジュールにおいて、接着封止部と中空糸
膜との界面は、多少機械的強度が弱い部分ではあるが、
通常の使用に対しては、全く問題はなかった。ところ
が、近年、中空糸型膜モジュールの使用範囲の拡大によ
り、より激しい条件での使用を望まれる様になった。例
えば、蒸気滅菌に耐えるもの、また、中空糸をエアーに
よってゆさぶることを必要とするものなどがある。特に
前者は、何の特別な操作をせずに、蒸気と水とを自由に
出し入れできるものが要求されており、この様な場合、
中空糸型膜モジュールに蒸気を入れるときと、蒸気から
冷水に入れ換えるときに、激しい中空糸膜のゆれが生じ
る。このとき、接着封止部と中空糸膜との界面にリーク
が生じることがある。In the hollow fiber membrane module, the interface between the adhesive sealing portion and the hollow fiber membrane is a portion where the mechanical strength is slightly weak,
There was no problem for normal use. However, in recent years, due to the expansion of the range of use of hollow fiber type membrane modules, use under more severe conditions has been desired. For example, there are those that can withstand steam sterilization, and those that require the hollow fiber to be shaken by air. In particular, the former is required to be able to freely take in and out steam and water without any special operation. In such a case,
Violent shaking of the hollow fiber membrane occurs when steam is introduced into the hollow fiber membrane module and when the steam is replaced with cold water. At this time, a leak may occur at the interface between the adhesive sealing part and the hollow fiber membrane.
また、中空糸のゆれを防ぐために中空糸束のまわりを
ネットによって保護したモジュールがあるが、このよう
なモジュールでも簡単にリークをおこしてしまう。Further, there is a module in which the circumference of the hollow fiber bundle is protected by a net in order to prevent the hollow fiber from swinging, but even such a module easily causes a leak.
この様な状況に鑑み、本発明者らは鋭意検討した結
果、本発明を完成させた。In view of such a situation, the present inventors have completed the present invention as a result of intensive studies.
即ち、本発明は、エポキシ系樹脂によって接着封止さ
れた中空糸末端部を有する中空糸型膜モジュールにおい
て、中空糸の外周部にエポキシ系樹脂と中空糸との界面
を覆う様な伸び率が10%以上の材質からなる保護層を有
し、その一部が隣接した中空糸間から、高さが1mm以上
で中空糸のみの外周部を覆っていることを特徴とする中
空糸型膜モジュールを提供するものである。That is, the present invention is a hollow fiber type membrane module having a hollow fiber end portion which is adhesively sealed with an epoxy resin, in which the outer peripheral portion of the hollow fiber has an elongation rate that covers the interface between the epoxy resin and the hollow fiber. A hollow fiber membrane module having a protective layer made of 10% or more of a material, a part of which covers the outer periphery of only the hollow fibers with a height of 1 mm or more between adjacent hollow fibers. Is provided.
中空糸型膜モジュールにおいて、中空糸の端部封止に
用いるエポキシ系樹脂は、耐熱性、耐薬品性などを考慮
した樹脂を用いるが、一般的にこの様な樹脂は硬く、伸
度は10%以下である。一方、中空糸膜は、伸びは大きい
がさほど大きな強度はなく、一般的に破断強度は50g〜1
000g程度、破断伸度は10〜60%程度である。In the hollow fiber membrane module, the epoxy resin used for sealing the end portion of the hollow fiber is a resin considering heat resistance, chemical resistance, etc. Generally, such a resin is hard and has an elongation of 10 % Or less. On the other hand, hollow fiber membranes have large elongation but not so much strength, and generally have a breaking strength of 50 g to 1
About 000g, elongation at break is about 10-60%.
この様に全く異なる物質同志が接着している界面で
は、中空糸膜に力がかかった場合、応力が集中し、この
部分の中空糸にキレツが入り、リークにつながってしま
うことを、本発明者らは明らかにした。In this way, when a force is applied to the hollow fiber membrane at the interface where the completely different substances adhere to each other, the stress is concentrated, and the hollow fiber in this portion is broken, leading to leakage. Revealed.
そこで、この部分に、より中空糸膜の性質に近い保護
層を設けて中空糸膜を保護することによって、応力の集
中をさけることに成功した。Therefore, we succeeded in avoiding the concentration of stress by providing a protective layer closer to the properties of the hollow fiber membrane in this portion to protect the hollow fiber membrane.
ここで重要なことは、保護層の一部を、中空糸のみの
外周部を覆う様にしたことである。これによって、まさ
にこの部分が比較的強度のない中空糸の補強となり、か
つ、応力の集中をさけることができる様になった。また
この部分の隣接した中空糸間からの高さは1mm以上ある
ことが必要である。1mm未満の高さであると、保護層と
しての十分な効果が期待できないことになる。What is important here is that a part of the protective layer covers the outer peripheral portion of only the hollow fiber. This makes it possible to reinforce the hollow fiber, which is relatively weak at this portion, and to avoid the concentration of stress. The height of this part from the space between adjacent hollow fibers must be 1 mm or more. If the height is less than 1 mm, a sufficient effect as a protective layer cannot be expected.
この様な保護層の材質は、伸び率が10%以上のもので
ある。具体的には、例えば、ゴム系のエポキシ樹脂、シ
リコーンゴム系樹脂、ニトリルゴム系樹脂などがある。
特に、ウレタン系樹脂については、一般に伸び率が10%
以上あり、しかも、近年、大きな耐熱性を有するものが
あるので特に好ましい。The material of such a protective layer has an elongation of 10% or more. Specifically, for example, a rubber-based epoxy resin, a silicone rubber-based resin, a nitrile rubber-based resin, or the like is used.
Especially for urethane resins, the elongation is generally 10%.
The above is mentioned, and moreover, in recent years, there is a material having a large heat resistance, which is particularly preferable.
また、中空糸膜の材質は、どの様なものでもよく、例
えば、ポリエーテルスルホン系樹脂、ポリスルホン系樹
脂、ポリイミド系樹脂、ポリアクリロニトリル系樹脂、
ポリメタクリル系樹脂、酢酸セルロース系樹脂、ポリオ
レフィン系樹脂、シリコーン系樹脂、PVDF系樹脂、ポリ
アミド系樹脂、またこれらの複合膜などが挙げられる。The material of the hollow fiber membrane may be any material, for example, polyether sulfone resin, polysulfone resin, polyimide resin, polyacrylonitrile resin,
Examples thereof include polymethacrylic resin, cellulose acetate resin, polyolefin resin, silicone resin, PVDF resin, polyamide resin, and composite films of these.
本発明の中空糸型膜モジュールの用途は、広く、どの
様なところにでも適用できる。特に、中空糸膜に激しい
ゆれを生じるところには適している。このような用途と
しては、例えば、蒸気滅菌モジュール、原子力発電にお
ける微粒子の濾過用モジュールなどが挙げられる。The hollow fiber type membrane module of the present invention has a wide range of applications and can be applied to any place. In particular, it is suitable for places where the hollow fiber membrane is violently shaken. Examples of such applications include a steam sterilization module and a module for filtering fine particles in nuclear power generation.
以下、本発明を実施例により説明するが、本発明はこ
れらに何等限定されない。Hereinafter, the present invention will be described with reference to examples, but the present invention is not limited thereto.
実施例1 第1図に示すような、内径89mmφ、厚さ5mm、長さ320
mmのポリスルホン製ケース1に内径500μm、外径800μ
mのポリエーテルスルホン製中空糸4 1000本よりなる糸
束を挿入し、これを遠心シール機の中にセットして、耐
熱性のエポキシ接着剤2を注入し、遠心シールして硬化
させた。これを取り出し、中空糸モジュールをたててお
き、コロネート4403(日本ポリウレタン社製)とニッポ
ラン4235(日本ポリウレタン社製)を58:42の重量比で
混合したウレタン接着剤3を、入口6からエポキシ接着
剤2による中空糸膜端部封止部に流し込み、5分後に流
し込んだ接着剤の大部分を出して硬化後、隣接した中空
糸間からの中空糸外周部のみを覆っている部分の高さ
(以後、外周部高さとする)が約5mmの保護層5をつく
った。Example 1 As shown in FIG. 1, inner diameter 89 mmφ, thickness 5 mm, length 320
mm polysulfone case 1 inside diameter 500μm, outside diameter 800μ
A thread bundle consisting of 4 1000 hollow fibers made of polyethersulfone of m was inserted, and this was set in a centrifugal sealing machine, a heat resistant epoxy adhesive 2 was injected, and centrifugal sealing was performed to cure. Take this out, set the hollow fiber module upright, and put urethane adhesive 3 which is a mixture of Coronate 4403 (manufactured by Nippon Polyurethane Co., Ltd.) and Nipporan 4235 (manufactured by Nippon Polyurethane Co., Ltd.) at a weight ratio of 58:42 from the inlet 6 with epoxy. The adhesive was poured into the hollow fiber membrane end sealing portion with the adhesive 2 and, after 5 minutes, most of the adhesive was poured out and after curing, the height of a portion covering only the outer peripheral portion of the hollow fiber from between the adjacent hollow fibers. A protective layer 5 having a thickness (hereinafter referred to as the outer peripheral height) of about 5 mm was formed.
もう一方の端部も同様にして処理した後、ケース端末
部を切断後、100℃にて接着剤を十分に硬化させた。After the other end was processed in the same manner, the case end was cut and the adhesive was sufficiently cured at 100 ° C.
実施例2 保護層の外周部高さを2mmとすること以外は実施例1
と同様にして中空糸型膜モジュールを製造した。Example 2 Example 1 except that the outer peripheral height of the protective layer is 2 mm.
A hollow fiber type membrane module was manufactured in the same manner as in.
比較例1 実施例1においてウレタン接着剤を中空糸膜端部封止
部に流し込む操作をしなかった以外は全く同様にして中
空糸型膜モジュールを製造した。Comparative Example 1 A hollow fiber type membrane module was manufactured in exactly the same manner as in Example 1 except that the urethane adhesive was not poured into the end sealing portion of the hollow fiber membrane.
実施例3 内径89mmφ、厚さ5mm、長さ320mmのポリスルホン製ケ
ースに、内径500μm、外径800μmのポリエーテルスル
ホン製中空糸5000本よりなる糸束を挿入し、これを遠心
シール機の中にセットして耐熱性のエポキシ接着剤を注
入し、遠心シールして硬化させた。この後、コロネート
4403とニッポラン4235を58:42の重量比で混合したウレ
タン接着剤を遠心で片側の中空糸膜端部封止部に注入
し、3分後に遠心シール機から取り出し、ウレタン接着
剤を注入した側を下にして静置して、硬化させた。この
静置によってウレタン接着剤が中空糸膜上にはい上が
り、外周部高さが約1mmの保護層ができた。同様にし
て、もう一方の中空糸膜端部封止部も処理した。Example 3 A polysulfone case having an inner diameter of 89 mmφ, a thickness of 5 mm and a length of 320 mm was charged with a yarn bundle of 5000 hollow polyethersulfone fibers having an inner diameter of 500 μm and an outer diameter of 800 μm, which was placed in a centrifugal sealing machine. After setting, a heat-resistant epoxy adhesive was injected and centrifugally sealed to cure. After this, Coronate
The urethane adhesive, which was a mixture of 4403 and Nipolan 4235 in the weight ratio of 58:42, was centrifugally injected into the hollow fiber membrane end sealing part on one side, and after 3 minutes, it was taken out from the centrifugal sealing machine and the urethane adhesive was injected into the side. It was left to stand and cured. By this standing, the urethane adhesive climbed up onto the hollow fiber membrane, and a protective layer having an outer peripheral height of about 1 mm was formed. Similarly, the other end portion of the hollow fiber membrane was also treated.
この後、ケース端末部を切断し、100℃にて接着剤を
十分に硬化させた。After that, the case end portion was cut, and the adhesive was sufficiently cured at 100 ° C.
耐久性測定例 上記実施例1〜3及び比較例1で得られた中空糸型膜
モジュールに、120℃の蒸気を30分通気した後、すぐに2
0℃の水を240 l/hで通水し30分間保った。この操作を20
回繰り返した後、中空糸のエアーリークの本数を調べた
結果を第1表に示す。Durability Measurement Example The hollow fiber membrane modules obtained in Examples 1 to 3 and Comparative Example 1 were immediately aerated with steam at 120 ° C. for 30 minutes, and then immediately 2
Water at 0 ° C was passed at 240 l / h and kept for 30 minutes. Do this operation 20
Table 1 shows the results of examining the number of air leaks in the hollow fiber after repeating the number of times.
激しい中空糸のゆれを伴う上記の実験に対し、保護層
を有する実施例1,2,3の中空糸型膜モジュールは、何ら
異常を示さなかった。 In contrast to the above experiment involving violent hollow fiber shake, the hollow fiber type membrane modules of Examples 1, 2 and 3 having the protective layer did not show any abnormality.
第1図は実施例1で製造した中空糸型膜モジュールの中
空糸端部封止部分の拡大断面図である。 1……ポリスルホンケース 2……エポキシ接着剤 3……ウレタン接着剤 4……ポリエーテルスルホン中空糸膜 5……高さが約5mmの外周部保護層 6……ウレタン接着剤を流し込む入口FIG. 1 is an enlarged cross-sectional view of a hollow fiber end portion sealing portion of the hollow fiber type membrane module manufactured in Example 1. 1 …… Polysulfone case 2 …… Epoxy adhesive 3 …… Urethane adhesive 4 …… Polyethersulfone hollow fiber membrane 5 …… Protective layer of outer peripheral part with height of about 5 mm 6 …… Inlet for pouring urethane adhesive
Claims (2)
空糸末端部を有する中空糸型膜モジュールにおいて、中
空糸の外周部にエポキシ系樹脂と中空糸との界面を覆う
様な伸び率10%以上の材質からなる保護層を有し、その
一部が隣接した中空糸間から、高さが1mm以上で中空糸
のみの外周部を覆っていることを特徴とする中空糸型膜
モジュール。1. A hollow fiber type membrane module having a hollow fiber end portion which is adhesively sealed with an epoxy resin, having an elongation rate of 10% so as to cover the interface between the epoxy resin and the hollow fiber on the outer peripheral portion of the hollow fiber. A hollow fiber membrane module comprising a protective layer made of the above material, a part of which has a height of 1 mm or more and covers the outer peripheral portion of only the hollow fibers between adjacent hollow fibers.
請求項1記載の中空糸型膜モジュール。2. The hollow fiber type membrane module according to claim 1, wherein the material of the protective layer is a polyurethane resin.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63259184A JP2529726B2 (en) | 1988-10-14 | 1988-10-14 | Hollow fiber type membrane module |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63259184A JP2529726B2 (en) | 1988-10-14 | 1988-10-14 | Hollow fiber type membrane module |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02107318A JPH02107318A (en) | 1990-04-19 |
JP2529726B2 true JP2529726B2 (en) | 1996-09-04 |
Family
ID=17330536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63259184A Expired - Fee Related JP2529726B2 (en) | 1988-10-14 | 1988-10-14 | Hollow fiber type membrane module |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2529726B2 (en) |
Families Citing this family (24)
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AUPR421501A0 (en) * | 2001-04-04 | 2001-05-03 | U.S. Filter Wastewater Group, Inc. | Potting method |
AU2003230426A1 (en) * | 2002-05-17 | 2003-12-02 | Para Limited | Hollow fiber membrane having supporting material for reinforcement, preparation thereof and spinneret for preparing the same |
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US9764288B2 (en) | 2007-04-04 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane module protection |
ES2384694T3 (en) | 2007-05-29 | 2012-07-11 | Siemens Industry, Inc. | Membrane cleaning with air driven pump |
WO2010009518A1 (en) | 2008-07-24 | 2010-01-28 | Siemens Water Technologies Corp. | Frame system for membrane filtration modules |
WO2010142673A1 (en) | 2009-06-11 | 2010-12-16 | Siemens Water Technologies Corp. | Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane |
HUE045642T2 (en) | 2010-04-30 | 2020-01-28 | Evoqua Water Tech Llc | Fluid flow distribution device |
WO2012040412A1 (en) | 2010-09-24 | 2012-03-29 | Siemens Industry, Inc. | Fluid control manifold for membrane filtration system |
CN103282109A (en) * | 2010-12-27 | 2013-09-04 | 东丽株式会社 | Hollow fiber membrane module and method for producing chemicals |
EP2760567B1 (en) | 2011-09-30 | 2021-12-01 | Rohm & Haas Electronic Materials Singapore Pte. Ltd | Isolation valve |
KR101964484B1 (en) | 2011-09-30 | 2019-04-01 | 에보쿠아 워터 테크놀로지스 엘엘씨 | Improved manifold arrangement |
US9643129B2 (en) | 2011-12-22 | 2017-05-09 | Bl Technologies, Inc. | Non-braided, textile-reinforced hollow fiber membrane |
EP2866922B1 (en) | 2012-06-28 | 2018-03-07 | Evoqua Water Technologies LLC | A potting method |
AU2013231145B2 (en) | 2012-09-26 | 2017-08-17 | Evoqua Water Technologies Llc | Membrane potting methods |
GB2520871B (en) | 2012-09-26 | 2020-08-19 | Evoqua Water Tech Llc | Membrane securement device |
EP2900356A1 (en) | 2012-09-27 | 2015-08-05 | Evoqua Water Technologies LLC | Gas scouring apparatus for immersed membranes |
JP2014226618A (en) * | 2013-05-23 | 2014-12-08 | ダイセン・メンブレン・システムズ株式会社 | Hollow fiber membrane module and manufacturing method of the same |
AU2014329869B2 (en) | 2013-10-02 | 2018-06-14 | Evoqua Water Technologies Llc | A method and device for repairing a membrane filtration module |
CN107847869B (en) | 2015-07-14 | 2021-09-10 | 罗门哈斯电子材料新加坡私人有限公司 | Aeration device for a filtration system |
JP2019013885A (en) * | 2017-07-07 | 2019-01-31 | 旭化成株式会社 | Separation membrane module |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS594403A (en) * | 1982-06-28 | 1984-01-11 | Kuraray Co Ltd | Hollow yarn type filter element |
JPS62144708A (en) * | 1985-12-19 | 1987-06-27 | Daicel Chem Ind Ltd | Hollow yarn mold membrane module |
-
1988
- 1988-10-14 JP JP63259184A patent/JP2529726B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JPH02107318A (en) | 1990-04-19 |
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