JPS63171607A - Method for sealing end of hollow yarn membrane - Google Patents
Method for sealing end of hollow yarn membraneInfo
- Publication number
- JPS63171607A JPS63171607A JP31242886A JP31242886A JPS63171607A JP S63171607 A JPS63171607 A JP S63171607A JP 31242886 A JP31242886 A JP 31242886A JP 31242886 A JP31242886 A JP 31242886A JP S63171607 A JPS63171607 A JP S63171607A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- sealing
- sealing material
- hollow yarn
- 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
- 239000012528 membrane Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000007789 sealing Methods 0.000 title claims description 21
- 239000013013 elastic material Substances 0.000 claims abstract description 11
- 239000012510 hollow fiber Substances 0.000 claims description 52
- 239000000945 filler Substances 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 9
- 230000005484 gravity Effects 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000003566 sealing material Substances 0.000 abstract description 21
- 238000004382 potting Methods 0.000 abstract description 10
- 238000005266 casting Methods 0.000 abstract description 8
- 229920002379 silicone rubber Polymers 0.000 abstract description 6
- 239000004944 Liquid Silicone Rubber Substances 0.000 abstract description 3
- 229920001971 elastomer Polymers 0.000 abstract description 3
- 239000004945 silicone rubber Substances 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 4
- 238000012856 packing Methods 0.000 abstract 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- -1 for example Substances 0.000 abstract 1
- 239000000565 sealant Substances 0.000 description 7
- 238000009750 centrifugal casting Methods 0.000 description 6
- 230000007774 longterm Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 210000003734 kidney Anatomy 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229940104181 polyflex Drugs 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001631 haemodialysis Methods 0.000 description 1
- 230000000322 hemodialysis Effects 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000004590 silicone sealant Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
中空糸膜モジュール（後述第２図参照）は、人工腎臓に
おける血液透析、海水淡水化における逆浸透法さらには
酸素富化膜などのガス分離等の分野で、透過面積が大き
く、耐圧性、自己支持性に優れるため近年盛んに開発さ
れ又利用されている。Detailed Description of the Invention (Industrial Application Field) Hollow fiber membrane modules (see Figure 2 below) are used for gas separation such as hemodialysis in artificial kidneys, reverse osmosis in seawater desalination, and oxygen enrichment membranes. In recent years, it has been actively developed and used in such fields because of its large permeation area, excellent pressure resistance, and self-supporting properties.
木発Ｐ！Ａｔ／ｉこの種の中空糸膜の端部封止方法、詳
しくは遠心力を用いて、充填剤含有封止材から充填剤を
遠心分離し、硬質層を形成させることを特徴とする封止
方法に関する。Kibatsu P! At/i A method for sealing the end of a hollow fiber membrane of this type, specifically, a sealing method characterized by centrifuging the filler from the filler-containing sealant to form a hard layer using centrifugal force. Regarding the method.
（従来技術）
一般にこの種の中空糸膜端部の封止方法は、混合流体の
各成分の分離、交換などに使用される中空糸膜モジュー
ルの製造における重要な技術である。(Prior Art) Generally, this type of method for sealing the ends of hollow fiber membranes is an important technique in the production of hollow fiber membrane modules used for separating and exchanging components of a mixed fluid.
従来の中空糸膜端部の封止方法としては遠心注型法、直
立注型法が採用されている。遠心注型法は、人工腎臓の
ような高度な信頼性を要求される分野に利用され、直立
注型法は工業用大型モジュールに用いられるのが一般的
である。Conventional methods for sealing the ends of hollow fiber membranes include centrifugal casting and upright casting. The centrifugal casting method is used in fields that require a high degree of reliability, such as artificial kidneys, and the upright casting method is generally used for large industrial modules.
封止材としては液状硬化性弾性体として硬質エポキシ樹
脂が用いられているが、低圧用としてりレタンやシリコ
ーンなどの弾性体も使用される。As the sealing material, hard epoxy resin is used as a liquid curable elastic material, but elastic materials such as urethane and silicone are also used for low pressure applications.
近年の中空糸膜モジュールの応用分野の拡大によって、
高温高圧用途などより一層の耐久性及び信頼性の向上が
要求されている。With the expansion of the application fields of hollow fiber membrane modules in recent years,
Further improvements in durability and reliability are required for applications such as high temperature and high pressure applications.
（発明が解決しようとする問題点）
直立注型法による封止では、封止材として用いる樹脂が
毛細管現象により中空糸膜細隙間を上昇するいわゆるタ
イツキング現象による有効膜面積の減少や信頼性の低下
の問題がある。このタイツキングを改善する方法として
、遠心注型法が特公昭、４４−５５２６号、特公昭５６
−４０６０２号で開示されている。(Problems to be Solved by the Invention) In the case of sealing using the upright casting method, the effective membrane area decreases and reliability is reduced due to the so-called tight-king phenomenon in which the resin used as the sealing material rises through the narrow gaps of the hollow fiber membrane due to capillary action. There is a problem with the decline in As a method to improve this tights kinging, the centrifugal casting method was published in Tokuko Sho, No. 44-5526, Tokuko Sho 56.
-40602.
封止材としては最も一般的に用いられるのは硬質エポキ
シ樹脂であるか、中空糸膜と封止材の境界部か損傷を受
けやすい欠点がある。The most commonly used sealant is a hard epoxy resin, which has the disadvantage that the boundary between the hollow fiber membrane and the sealant is easily damaged.
この欠点を改善するため特公昭５６’−３００４３号で
は中空糸膜をたるませた状態でモジュール圧力容器に装
着することが提案されているが、長期の耐久性ではなお
問題が残る。In order to improve this drawback, Japanese Patent Publication No. 56'-30043 proposes installing the hollow fiber membrane in a slackened state in the module pressure vessel, but problems still remain in terms of long-term durability.
この中空糸膜の損傷を根本的に解消するには軟かい弾性
体を封止材として用いれば良いが、加圧時の弾性体の変
形のため中空糸膜が損傷を受けやすくなる。In order to fundamentally eliminate this damage to the hollow fiber membranes, a soft elastic body may be used as a sealing material, but the hollow fiber membranes become susceptible to damage due to the deformation of the elastic body when pressurized.
この変形防止のため中空糸膜開口端部を、硬質発泡体、
多孔性金属板などで支持する方法が用いられるが、開口
面積が減少し流量が低下する大きな欠点がある。従って
弾性体による封止は差圧が高々数Ｋｙ／ｃｎの低圧用途
のみに限定される。To prevent this deformation, the open end of the hollow fiber membrane is made of hard foam,
A method of supporting with a porous metal plate or the like is used, but this method has the major drawback of reducing the opening area and lowering the flow rate. Therefore, sealing with an elastic body is limited to low pressure applications where the differential pressure is at most several Ky/cn.
上記に鑑み、本発明はこのような問題点を解消するため
開発されたものである。In view of the above, the present invention has been developed to solve these problems.
即ち本発明では遠心注型法において封止材を特別なもの
とすることにより硬質封止材における中空糸膜の損傷、
軟質封止材の変形防止及び直立注型法におけるタイツキ
ングの問題を同時に解決できることを見出した。That is, in the present invention, by using a special sealing material in the centrifugal casting method, damage to the hollow fiber membrane in the hard sealing material,
We have found that it is possible to simultaneously prevent the deformation of soft sealants and solve the problems of tighting in the upright casting method.
以下詳細に本発明を説明する。The present invention will be explained in detail below.
（問題点を解決するための手段）
即ち本発明は、多数の中空糸膜の端部を遠心力を用いて
封止する方法において、液状硬化性弾体に、該弾性体よ
りも比重の大きな充填剤を含有させてなる封止材を用い
、該充填剤を遠心分離することにより硬質層を形成させ
ることを特徴とする中空糸膜端部対土方法である。(Means for Solving the Problems) That is, the present invention provides a method for sealing the ends of a large number of hollow fiber membranes using centrifugal force. This is a hollow fiber membrane end-to-soil method characterized by using a sealing material containing a filler and forming a hard layer by centrifuging the filler.
上記本発明に用いる中空糸膜は、混合流体の分離、交換
を行なう中空糸膜モジユール用として使用できるもので
あれば特に制限はないが、例えばガラス、再生セルロー
ス、セルロースエステル等のセルロース誘導体、ポリビ
ニルアルコール系、ポリアミド系、ポリイミド系、ポリ
エステル系、ポリアクリロニトリル系、シリコーン樹脂
系、ポリスルホン系、ポリメチルメタアクリレート系、
弗素樹脂系等が用いられる。The hollow fiber membrane used in the present invention is not particularly limited as long as it can be used as a hollow fiber membrane module for separating and exchanging mixed fluids, but examples include glass, regenerated cellulose, cellulose derivatives such as cellulose ester, polyvinyl Alcohol-based, polyamide-based, polyimide-based, polyester-based, polyacrylonitrile-based, silicone resin-based, polysulfone-based, polymethyl methacrylate-based,
Fluororesin or the like is used.
膜構造としては多孔質膜及び非多孔質膜（非対称孔径膜
、複合膜など）のいずれでも良い。また中空糸の外径は
５０〜５ｏａｏμ程度、内径は２０〜２０００μ程度の
ものが使用できる。The membrane structure may be either a porous membrane or a non-porous membrane (asymmetric pore membrane, composite membrane, etc.). Further, hollow fibers having an outer diameter of about 50 to 5 oaoμ and an inner diameter of about 20 to 2000μ can be used.
封止材は液状硬化性弾性体であればいかなるものでもよ
く、例えばシリコーン系、ポリフレクン系、可撓性エポ
キシ樹脂等が使用される。The sealing material may be any liquid curable elastic material, such as silicone type, polyflex type, flexible epoxy resin, etc.
また充填剤としては、充填剤の比重が液状硬化性弾性体
のそれよりも大きいものであればいかなるものでも使用
でき、例えば炭酸力ルシウム、酸化チタン、酸化鉄、ク
レー、シリカ、アルミナ、石英粉末等がある。充填剤と
液状硬化性弾性体との比重差が小さい場合必要な硬質層
を形成させるための充填剤の遠心分離に要する時間が長
くなり、また回転数を大きくする必要が生じるので、経
済性、生産性を考慮すると両者の比重差／／ｉ１以上に
した方が望ましい。Any filler can be used as long as the specific gravity of the filler is greater than that of the liquid hardening elastic material, such as lucium carbonate, titanium oxide, iron oxide, clay, silica, alumina, and quartz powder. etc. If the difference in specific gravity between the filler and the liquid curable elastomer is small, the time required for centrifuging the filler to form the necessary hard layer will be longer, and the rotational speed will need to be increased, resulting in economical problems. Considering productivity, it is preferable that the difference in specific gravity between the two is equal to or more than //i1.
また充填剤の添加部数は所定厚さの硬質層を形成させる
に十分な量であれば特に制約はないが、下限は遠心分離
効率から２０部程度、上限は物性低下、粘度上昇から１
００部程程度適当である。There are no particular restrictions on the number of fillers added as long as the amount is sufficient to form a hard layer of a predetermined thickness, but the lower limit is around 20 parts due to centrifugation efficiency, and the upper limit is 10 parts due to decreased physical properties and increased viscosity.
About 00 copies is appropriate.
（作用）
本発明による中空糸膜の端部封止法は、液状硬化性弾性
体に充填剤を含有してなる封止材を遠心注型することに
より、液状弾性体が硬化する前に、充填剤を遠心分離さ
せた後硬化させ、中空糸膜開口端部近くに硬質層を形成
させ、さらに該硬質層の上部に軟かい弾性体層を形成さ
せることを特徴とする。(Function) The method for sealing the end of a hollow fiber membrane according to the present invention involves centrifugally casting a sealing material containing a filler into a liquid curable elastic body, and then, before the liquid elastic body hardens, The method is characterized in that the filler is centrifuged and then hardened to form a hard layer near the open end of the hollow fiber membrane, and a soft elastic layer is further formed on top of the hard layer.
この硬質層は加圧時の弾性体の変形を防ぐ作用を持ち、
上層の軟かい弾性体層は中空糸膜の損傷防止のためには
非常に有効である。さらには遠心注型条件を適切に選ぶ
ことにより急激な硬さ変化のない即ち充填剤含有率を連
続的に変化させた封止部を形成することも可能であり、
応力集中による損傷を軽減できるため長期耐久性にも優
れた封−正方法である。This hard layer has the effect of preventing deformation of the elastic body when pressurized.
The upper soft elastic layer is very effective in preventing damage to the hollow fiber membrane. Furthermore, by appropriately selecting centrifugal casting conditions, it is also possible to form a sealed part without sudden changes in hardness, that is, in which the filler content is continuously changed.
This is a sealing method with excellent long-term durability as it can reduce damage caused by stress concentration.
加圧時の変形を実質的に防止するには中空糸膜開口端部
に形成される硬質層の硬さが９０以上（ＪＩＳ Ａ型硬
度計で）、厚さが５＋ｗ＋以上であれば十分であるが、
より望ましくは硬さ９５以上、厚さ１０−以上が必要で
ある。In order to substantially prevent deformation during pressurization, it is sufficient that the hard layer formed at the open end of the hollow fiber membrane has a hardness of 90 or more (JIS A type hardness tester) and a thickness of 5+W+ or more. Yes, but
More preferably, the hardness is 95 or more and the thickness is 10 or more.
以下に一実施態様を具体的に説明する。まず中空糸膜を
ポツティングケース内に収納し、中空糸膜が偏在しない
様に両端を固定する。固定方法は少量の樹脂を両端に一
次ポツテイングする方法が一般に用いられるが、この注
型法は直立注型でも遠心注型でも良い。さらには機械的
な方法でも良い。One embodiment will be specifically described below. First, the hollow fiber membrane is housed in a potting case, and both ends are fixed so that the hollow fiber membrane is not unevenly distributed. The fixing method generally used is to primarily pot a small amount of resin at both ends, but this casting method may also be vertical casting or centrifugal casting. Furthermore, a mechanical method may also be used.
次に液状硬化性弾性体に充填剤を添加してなる封止材の
所定量を封止材ポットからチューブを通して中空糸膜端
部に遠心注型する。ここで充填剤が分離沈降するに十分
な遠心力を所定時間作用させた後遠心力を作用させたま
まで封止材を昇温硬化させる。Next, a predetermined amount of a sealant made by adding a filler to a liquid curable elastomer is centrifugally poured from a pot of sealant through a tube onto the end of the hollow fiber membrane. After a centrifugal force sufficient to cause the filler to separate and settle is applied for a predetermined period of time, the encapsulant is cured at elevated temperature while the centrifugal force remains applied.
封止材の硬化が完了した後に回転を止め、冷却後ポツテ
ィングケースを解体し、必要に応じ片端又は両端を、所
定の位置で切断することにより中空糸膜端部を開口させ
る。After the curing of the sealing material is completed, the rotation is stopped, and after cooling, the potting case is disassembled and one or both ends are cut at a predetermined position to open the hollow fiber membrane end.
ここで述べた封止材の供給方法は１例であり、各中空糸
膜束の製法や中空糸膜モジュールの形状や製法により様
々な方法が考えられるのは当然のことである。The method for supplying the sealing material described here is just one example, and it goes without saying that various methods can be considered depending on the manufacturing method of each hollow fiber membrane bundle and the shape and manufacturing method of the hollow fiber membrane module.
またポツティングケースより端部封止後の中空糸膜束を
脱着した後、中空糸膜モジュールの本体圧力容器に装着
することも可能であるし、ポツティングケースは本体容
器そのものを用いることも可能である。さらには封止材
を本体容器と接着させても良く、接着させなくても良い
。It is also possible to attach and detach the hollow fiber membrane bundle after sealing the ends from the potting case and then attach it to the main pressure vessel of the hollow fiber membrane module, or it is also possible to use the main body container itself as the potting case. It is. Furthermore, the sealing material may or may not be adhered to the main container.
中空糸膜モジュールの形態としては内圧方式、外圧方式
のいずれにも使用できるが、外圧方式に採用すると極め
て効果的である。The hollow fiber membrane module can be used in either an internal pressure system or an external pressure system, but it is extremely effective when used in an external pressure system.
（実施例） 以下に本発明の詳細な説明する。(Example) The present invention will be explained in detail below.
実施例１．（第１．２図参照）
外表面に活性層としてプラズマ重合膜を被覆してなる４
弗化エチレン樹脂中空糸膜（１）〔外径１．２＠Ｉ）１
５０本を２６０醪長さに切断し、ポツティングケースと
して用いるステンレス製モジュール本体圧力容器（２）
（内径２５霞）に装入し、中空糸膜の偏在を防ぐため、
本体圧力容器とはボルトで接続される端部形成用のテー
パー構造（Ｔ）を設けたポツティングケース（３）に少
量のシリコーンシーラントで固定した。しかる後に１５
０ Ｏｒｐｍの回転場（矢印）で封止材として１２０ｇ
の充填剤含有硬化型液状シリコーンゴム（Ａ）（信越化
学（株）製のＫＥ１２０４）を両端に注入し、常温で１
５０分回転後１００’ＣＩで昇温し、封止材を完全に硬
化させた後ボッティングケースを解体し、両端の封止部
を所定寸法に切断した（以上第１図参照）。Example 1. (See Figure 1.2) The outer surface is coated with a plasma polymerized film as an active layer.
Fluorinated ethylene resin hollow fiber membrane (1) [Outer diameter 1.2@I) 1
Stainless steel module body pressure vessel (2) cut from 50 pieces to 260 mm length and used as a potting case
(inner diameter 25 ha) to prevent uneven distribution of hollow fiber membranes.
It was fixed with a small amount of silicone sealant to a potting case (3) provided with a tapered structure (T) for forming an end, which was connected to the main pressure vessel with a bolt. After that 15
120g as a sealant in a rotating field (arrow) of 0 Orpm
Filler-containing curable liquid silicone rubber (A) (KE1204 manufactured by Shin-Etsu Chemical Co., Ltd.) was injected into both ends, and
After rotating for 50 minutes, the temperature was raised to 100' CI to completely cure the sealing material, and then the botting case was disassembled, and the sealing portions at both ends were cut to a predetermined size (see FIG. 1 above).
その後端部形成用ポツティングケースと同じテーパー構
造を有するステンレス製モジュール端板（１０）を中空
糸膜開口部の封止材部に密着するようにボルトで固定し
中空糸膜モジュールを完成した（以上第２図参照）。After that, a stainless steel module end plate (10) having the same tapered structure as the potting case for forming the end was fixed with bolts so as to be in close contact with the sealing material of the hollow fiber membrane opening to complete the hollow fiber membrane module ( (See Figure 2 above).
この中空糸膜モジュールに外圧としてＨｅ／Ｎ２混合ガ
スを２０ Ｋｆ／ｃｄ負荷し、Ｈｅの分離を試みたが、
長時間の使用によってもリークなどの不具合も発生せず
、中空糸膜固有のＨｅ選択透過性を示し良好であった。An attempt was made to separate He by loading 20 Kf/cd of He/N2 mixed gas as external pressure to this hollow fiber membrane module, but
Even after long-term use, no problems such as leakage occurred, and the hollow fiber membrane exhibited excellent He selective permeability unique to the hollow fiber membrane.
モジュール性能を確認後モジュールを分解し、封止部の
硬さを調べたところ、中空糸膜の開口端部から１０鱈厚
さは硬さ９５以上、さらに続（１０ｍ厚さＩ／ｉ９０以
上の硬質層が形成されていた。封止材の最も回転中心に
近い端部から５８は硬さ３０の充填剤（５）の殆んど含
有されない軟らかいシリコンゴム層（６）が形成されて
いた。After confirming the module performance, the module was disassembled and the hardness of the sealing part was examined, and it was found that the hardness was 95 or higher for 10 m thick from the open end of the hollow fiber membrane, and that A hard layer was formed.A soft silicone rubber layer (6) containing almost no filler (5) having a hardness of 30 was formed from the end 58 of the sealing material closest to the center of rotation.
なお第１図中（７） Ｈ導入口、（８）はパイプ、（９
） ／ｉ回転板、第２図中（１１）は高圧側入口、（１
２）は高圧側出口、（１３） ｒｌ′ｉ低圧側出口、（
１４）、（１４’ ）Ｉｄ 空所を示している。In Figure 1, (7) is the H inlet, (8) is the pipe, and (9) is the H inlet.
) /i rotating plate, (11) in Figure 2 is the high pressure side inlet, (1
2) is the high pressure side outlet, (13) rl'i is the low pressure side outlet, (
14), (14')Id Indicates a blank space.
実施例２
ポリエーテルイミド系中空糸膜（外径０．８５ ｔｐａ
）２００本及び封止材として石英粉末５０部を含有さ
せたポリフレクン（底円薬品製ＨＰ−１５）を１００ｇ
用いた他は実施例１と同様にモジュールを作製した。Example 2 Polyetherimide hollow fiber membrane (outer diameter 0.85 tpa
) 200 pieces and 100 g of Polyflex (HP-15 manufactured by Soken Yakuhin) containing 50 parts of quartz powder as a sealing material.
A module was produced in the same manner as in Example 1 except for using the following.
この中空糸膜モジュールにＨｅ／Ｎ２混合ガスを３０
Ｋｇ／ｃｄ負荷し、Ｈｅの分離実験を行なったが、長時
間の使用によってもリークなどの不具合はおこらず、中
空糸膜固有のＨｅ％選択透過性を示し良好であった。Inject 30% of He/N2 mixed gas into this hollow fiber membrane module.
A He separation experiment was carried out under a load of Kg/cd, but no problems such as leaks occurred even after long-term use, and the hollow fiber membrane exhibited good He% selective permeability unique to the hollow fiber membrane.
封止部の硬質層は９５以上が７１１１１１．９０以上が
１３笥形成されており、軟質層Ｉ／′１５ｍｍ１厚さに
渡り硬さ７０であった。The hard layer of the sealing part had a hardness of 711111.90 or more with a hardness of 711111.
比較例１゜
封止材として充填剤を含有しないポリフレクン８０ｇを
用いた他は実施例２と同様にモジュールを作製し、評価
したが、Ｈｅ／Ｎ２混合ガスを３０Ｋｇ／ｍ負荷したと
ころリークが発生した。Comparative Example 1゜A module was fabricated and evaluated in the same manner as in Example 2, except that 80 g of polyflexion containing no filler was used as the sealing material, but leakage occurred when 30 kg/m of He/N2 mixed gas was loaded. did.
（発明の効果）
以上の様な本発明の中空糸膜端部の封止方法により、中
空糸膜モジュールの信頼性、長期耐久性を大幅に向上さ
せることが可能となった。(Effects of the Invention) By the method for sealing the ends of hollow fiber membranes of the present invention as described above, it has become possible to significantly improve the reliability and long-term durability of hollow fiber membrane modules.
第１図は本発明の中空糸膜端部の封止方法を説明する図
、第２図は第１図の本発明の方法によって得られたもの
を用いた中空糸膜モジュールの縦断正面図を夫々例示し
ている。
（１）・・・中空糸膜、（２）・・・本体圧力容器、（
３）・・・ポツティングケース端部、（４）・・・充填
剤含有硬化型液状シリコーンゴム、（５）・・・充填剤
、（６）・・・シリコンゴム、（力・・・導入口、（８
）・・・パイプ、（９）・・・回転板、（Ｔ）・・・テ
ーパー、ｌ町FIG. 1 is a diagram illustrating the method for sealing the end of a hollow fiber membrane according to the present invention, and FIG. 2 is a longitudinal sectional front view of a hollow fiber membrane module obtained by the method according to the present invention shown in FIG. Examples are given for each. (1)...Hollow fiber membrane, (2)...Main body pressure vessel, (
3) End of potting case, (4) Filler-containing curing liquid silicone rubber, (5) Filler, (6) Silicone rubber, (Force... Introduction) Mouth, (8
)...pipe, (9)...rotating plate, (T)...taper, l town
Claims (3)
方法に於いて、液状硬化性弾性体に該弾性体よりも比重
の大きな充填剤を含有させてなる封止剤を用い、該充填
剤を遠心分離することにより硬質層を形成させることを
特徴とする中空糸膜端部の封止方法。(1) In a method of sealing the ends of a large number of hollow fiber membranes using centrifugal force, a sealing agent made of a liquid curable elastic material containing a filler having a higher specific gravity than the elastic material is used. A method for sealing an end of a hollow fiber membrane, characterized in that a hard layer is formed by centrifuging the filler.
ある特許請求の範囲第（１）項記載の中空糸膜端部の封
止方法。(2) The method for sealing an end of a hollow fiber membrane according to claim (1), wherein the difference in specific gravity between the filler and the liquid curable elastic body is 1 or more.
あり、その厚さが５ｍｍ以上である特許請求の範囲第（
１）項又は第（２）項記載の中空糸膜端部の封止方法。(3) The hard layer has a hardness of 90 or more on a JIS A type hardness tester and a thickness of 5 mm or more (
The method for sealing an end of a hollow fiber membrane according to item 1) or item (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31242886A JPS63171607A (en) | 1986-12-30 | 1986-12-30 | Method for sealing end of hollow yarn membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31242886A JPS63171607A (en) | 1986-12-30 | 1986-12-30 | Method for sealing end of hollow yarn membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63171607A true JPS63171607A (en) | 1988-07-15 |
Family
ID=18029091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31242886A Pending JPS63171607A (en) | 1986-12-30 | 1986-12-30 | Method for sealing end of hollow yarn membrane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63171607A (en) |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997010893A1 (en) * | 1995-09-21 | 1997-03-27 | Asahi Kasei Kogyo Kabushiki Kaisha | Hollow fiber membrane module |
| EP0920904A2 (en) * | 1997-12-03 | 1999-06-09 | Praxair Technology, Inc. | Multicomponent hollow fiber membrane tubesheets |
| WO2008007608A1 (en) * | 2006-07-10 | 2008-01-17 | Asahi Kasei Chemicals Corporation | Process for produciton of hollow-fiber membrane bundles |
| US7931463B2 (en) | 2001-04-04 | 2011-04-26 | Siemens Water Technologies Corp. | Apparatus for potting membranes |
| US8268176B2 (en) | 2003-08-29 | 2012-09-18 | Siemens Industry, Inc. | Backwash |
| US8287743B2 (en) | 2007-05-29 | 2012-10-16 | Siemens Industry, Inc. | Membrane cleaning with pulsed airlift pump |
| US8293098B2 (en) | 2006-10-24 | 2012-10-23 | Siemens Industry, Inc. | Infiltration/inflow control for membrane bioreactor |
| US8318028B2 (en) | 2007-04-02 | 2012-11-27 | Siemens Industry, Inc. | Infiltration/inflow control for membrane bioreactor |
| US8377305B2 (en) | 2004-09-15 | 2013-02-19 | Siemens Industry, Inc. | Continuously variable aeration |
| US8382981B2 (en) | 2008-07-24 | 2013-02-26 | Siemens Industry, Inc. | Frame system for membrane filtration modules |
| CN103007769A (en) * | 2012-12-25 | 2013-04-03 | 西安建筑科技大学 | Packaging device of hollow fiber film test assembly and packaging method thereof |
| US8858796B2 (en) | 2005-08-22 | 2014-10-14 | Evoqua Water Technologies Llc | Assembly for water filtration using a tube manifold to minimise backwash |
| US8956464B2 (en) | 2009-06-11 | 2015-02-17 | Evoqua Water Technologies Llc | Method of cleaning membranes |
| US9022224B2 (en) | 2010-09-24 | 2015-05-05 | Evoqua Water Technologies Llc | Fluid control manifold for membrane filtration system |
| US9533261B2 (en) | 2012-06-28 | 2017-01-03 | Evoqua Water Technologies Llc | Potting method |
| US9604166B2 (en) | 2011-09-30 | 2017-03-28 | Evoqua Water Technologies Llc | Manifold arrangement |
| US9675938B2 (en) | 2005-04-29 | 2017-06-13 | Evoqua Water Technologies Llc | Chemical clean for membrane filter |
| US9764288B2 (en) | 2007-04-04 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane module protection |
| US9764289B2 (en) | 2012-09-26 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane securement device |
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| US9925499B2 (en) | 2011-09-30 | 2018-03-27 | Evoqua Water Technologies Llc | Isolation valve with seal for end cap of a filtration system |
| US9962865B2 (en) | 2012-09-26 | 2018-05-08 | Evoqua Water Technologies Llc | Membrane potting methods |
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| US10427102B2 (en) | 2013-10-02 | 2019-10-01 | Evoqua Water Technologies Llc | Method and device for repairing a membrane filtration module |
-
1986
- 1986-12-30 JP JP31242886A patent/JPS63171607A/en active Pending
Cited By (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6331248B1 (en) | 1995-09-21 | 2001-12-18 | Asahi Kasei Kogyo Kabushiki Kaisha | Hollow fiber membrane module |
| WO1997010893A1 (en) * | 1995-09-21 | 1997-03-27 | Asahi Kasei Kogyo Kabushiki Kaisha | Hollow fiber membrane module |
| US6290756B1 (en) | 1997-12-03 | 2001-09-18 | Praxair Technology, Inc. | Hollow fiber membrane tubesheets of variable epoxy composition and hardness |
| EP0920904A3 (en) * | 1997-12-03 | 1999-06-16 | Praxair Technology, Inc. | Multicomponent hollow fiber membrane tubesheets |
| EP0920904A2 (en) * | 1997-12-03 | 1999-06-09 | Praxair Technology, Inc. | Multicomponent hollow fiber membrane tubesheets |
| US7931463B2 (en) | 2001-04-04 | 2011-04-26 | Siemens Water Technologies Corp. | Apparatus for potting membranes |
| US8268176B2 (en) | 2003-08-29 | 2012-09-18 | Siemens Industry, Inc. | Backwash |
| US8377305B2 (en) | 2004-09-15 | 2013-02-19 | Siemens Industry, Inc. | Continuously variable aeration |
| US9675938B2 (en) | 2005-04-29 | 2017-06-13 | Evoqua Water Technologies Llc | Chemical clean for membrane filter |
| US8894858B1 (en) | 2005-08-22 | 2014-11-25 | Evoqua Water Technologies Llc | Method and assembly for water filtration using a tube manifold to minimize backwash |
| US8858796B2 (en) | 2005-08-22 | 2014-10-14 | Evoqua Water Technologies Llc | Assembly for water filtration using a tube manifold to minimise backwash |
| WO2008007608A1 (en) * | 2006-07-10 | 2008-01-17 | Asahi Kasei Chemicals Corporation | Process for produciton of hollow-fiber membrane bundles |
| US8133344B2 (en) | 2006-07-10 | 2012-03-13 | Asahi Kasei Chemicals Corporation | Process for production of hollow-fiber membrane bundles |
| US8293098B2 (en) | 2006-10-24 | 2012-10-23 | Siemens Industry, Inc. | Infiltration/inflow control for membrane bioreactor |
| US8318028B2 (en) | 2007-04-02 | 2012-11-27 | Siemens Industry, Inc. | Infiltration/inflow control for membrane bioreactor |
| US9764288B2 (en) | 2007-04-04 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane module protection |
| US10507431B2 (en) | 2007-05-29 | 2019-12-17 | Evoqua Water Technologies Llc | Membrane cleaning with pulsed airlift pump |
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| US8372276B2 (en) | 2007-05-29 | 2013-02-12 | Siemens Industry, Inc. | Membrane cleaning with pulsed airlift pump |
| US9206057B2 (en) | 2007-05-29 | 2015-12-08 | Evoqua Water Technologies Llc | Membrane cleaning with pulsed airlift pump |
| US8287743B2 (en) | 2007-05-29 | 2012-10-16 | Siemens Industry, Inc. | Membrane cleaning with pulsed airlift pump |
| US9573824B2 (en) | 2007-05-29 | 2017-02-21 | Evoqua Water Technologies Llc | Membrane cleaning with pulsed airlift pump |
| US9023206B2 (en) | 2008-07-24 | 2015-05-05 | Evoqua Water Technologies Llc | Frame system for membrane filtration modules |
| US8382981B2 (en) | 2008-07-24 | 2013-02-26 | Siemens Industry, Inc. | Frame system for membrane filtration modules |
| US8956464B2 (en) | 2009-06-11 | 2015-02-17 | Evoqua Water Technologies Llc | Method of cleaning membranes |
| US9914097B2 (en) | 2010-04-30 | 2018-03-13 | Evoqua Water Technologies Llc | Fluid flow distribution device |
| US10441920B2 (en) | 2010-04-30 | 2019-10-15 | Evoqua Water Technologies Llc | Fluid flow distribution device |
| US9630147B2 (en) | 2010-09-24 | 2017-04-25 | Evoqua Water Technologies Llc | Fluid control manifold for membrane filtration system |
| US9022224B2 (en) | 2010-09-24 | 2015-05-05 | Evoqua Water Technologies Llc | Fluid control manifold for membrane filtration system |
| US10391432B2 (en) | 2011-09-30 | 2019-08-27 | Evoqua Water Technologies Llc | Manifold arrangement |
| US9925499B2 (en) | 2011-09-30 | 2018-03-27 | Evoqua Water Technologies Llc | Isolation valve with seal for end cap of a filtration system |
| US9604166B2 (en) | 2011-09-30 | 2017-03-28 | Evoqua Water Technologies Llc | Manifold arrangement |
| US11065569B2 (en) | 2011-09-30 | 2021-07-20 | Rohm And Haas Electronic Materials Singapore Pte. Ltd. | Manifold arrangement |
| US9533261B2 (en) | 2012-06-28 | 2017-01-03 | Evoqua Water Technologies Llc | Potting method |
| US9962865B2 (en) | 2012-09-26 | 2018-05-08 | Evoqua Water Technologies Llc | Membrane potting methods |
| US9764289B2 (en) | 2012-09-26 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane securement device |
| US9815027B2 (en) | 2012-09-27 | 2017-11-14 | Evoqua Water Technologies Llc | Gas scouring apparatus for immersed membranes |
| CN103007769A (en) * | 2012-12-25 | 2013-04-03 | 西安建筑科技大学 | Packaging device of hollow fiber film test assembly and packaging method thereof |
| US10427102B2 (en) | 2013-10-02 | 2019-10-01 | Evoqua Water Technologies Llc | Method and device for repairing a membrane filtration module |
| US11173453B2 (en) | 2013-10-02 | 2021-11-16 | Rohm And Haas Electronic Materials Singapores | Method and device for repairing a membrane filtration module |
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