JPS6260124B2 - - Google Patents
Info
- Publication number
- JPS6260124B2 JPS6260124B2 JP4828078A JP4828078A JPS6260124B2 JP S6260124 B2 JPS6260124 B2 JP S6260124B2 JP 4828078 A JP4828078 A JP 4828078A JP 4828078 A JP4828078 A JP 4828078A JP S6260124 B2 JPS6260124 B2 JP S6260124B2
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- leak
- hollow fiber
- pressure
- leaks
- 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
Links
- 239000000853 adhesive Substances 0.000 claims description 53
- 230000001070 adhesive effect Effects 0.000 claims description 53
- 239000012510 hollow fiber Substances 0.000 claims description 38
- 239000012528 membrane Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 230000008439 repair process Effects 0.000 description 8
- 229920006332 epoxy adhesive Polymers 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 210000003734 kidney Anatomy 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 238000000502 dialysis Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 239000004627 regenerated cellulose Substances 0.000 description 2
- 229920002050 silicone resin Polymers 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 229920001567 vinyl ester resin Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920006350 polyacrylonitrile resin Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000379 polypropylene carbonate Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Landscapes
- External Artificial Organs (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Description
【発明の詳細な説明】
本発明は中空糸膜を用いたモジユールのリーク
個所補修方法に関し、さらに詳しくは接着剤をリ
ーク個所から加圧侵入せしめてリーク個所を封止
するリーク補修方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for repairing a leak in a module using a hollow fiber membrane, and more particularly to a method for repairing a leak in which an adhesive is introduced from the leak under pressure to seal the leak.
中空糸状の選択透過性膜（以下中空糸膜とい
う）を用いた流体処理装置は、各種工業用液体の
処理、気体の処理及び、医療用装置として、広く
使用されている。例えば人工腎臓として知られる
血液の透析処理装置は、年間数十万個程度が生産
され使用されている。中空糸膜を用いたモジユー
ルは、その少くとも一端部をプラスチツクス等の
筐体内で接着し、シールすることが必要である。
該技術についてもすでに種々の方法が開発され実
用化されているが、使用される中空糸が比較的弱
いこと、及び数千本から数千本もの多数の中空糸
膜を用いる点から、接着端面のシールを完全に行
うことは非常に困難である。該接着端面のリーク
は次のような原因で生ずる。中空糸膜の破損部か
らのリーク。接着端部での中空糸膜と接着剤との
接着不良によるリーク。接着端部での筐体壁部と
接着剤との接着不良によるリーク。これらのリー
クは、そのまゝでは該モジユールが流体分離装置
としての機能を完全には果しえないため可及的に
補修することが望ましい。 Fluid processing devices using hollow fiber-like permselective membranes (hereinafter referred to as hollow fiber membranes) are widely used for processing various industrial liquids, gases, and as medical devices. For example, hundreds of thousands of blood dialysis processing devices known as artificial kidneys are produced and used each year. A module using a hollow fiber membrane must have at least one end adhered and sealed within a housing made of plastic or the like.
Various methods for this technology have already been developed and put into practical use, but because the hollow fibers used are relatively weak and a large number of hollow fiber membranes, ranging from several thousand to several thousand, are used, it is difficult to adhere to the bonded end surface. It is very difficult to seal completely. Leakage at the bonded end surface occurs due to the following reasons. Leak from a damaged part of the hollow fiber membrane. Leak due to poor adhesion between the hollow fiber membrane and adhesive at the adhesive end. Leak due to poor adhesion between the housing wall and the adhesive at the adhesive end. It is desirable to repair these leaks as much as possible since the module cannot fully function as a fluid separation device if left as is.
該リーク補修法についてリーク個所にドリルで
穴をあけ、該ドリル穴に融解して熱可塑性ポリマ
ーを充填して冷却固化する方法（特開昭50−
149180）や、円筒形又は円錘形の物体でリーク発
生の中空糸開口端を密栓する方法（特開昭51−
32487）が提案されている。これらの方法におい
て、熱可塑性ポリマー充填法は、微少なリーク個
所には充填がむずかしく、操作も繁雑であり、密
栓法は中空糸膜自身のリークしか補修できないこ
との欠点を有する。 Regarding the leak repair method, a method is proposed in which a hole is drilled at the leak location, the drilled hole is filled with a melted thermoplastic polymer, and the polymer is cooled and solidified (Japanese Patent Laid-Open No. 1973-
149180), or a method of sealing the open end of a hollow fiber where a leak occurs with a cylindrical or conical object (Japanese Patent Application Laid-open No.
32487) has been proposed. Among these methods, the thermoplastic polymer filling method has the disadvantage that it is difficult to fill minute leakage points and the operation is complicated, and the sealing method can only repair leaks in the hollow fiber membrane itself.
本発明者らは、かゝる点について鋭意検討の結
果モジユールの接着端部を作る接着剤を有効に利
用することにより、すべてのリークが簡単な操作
により完全に補修できることを見い出し、本発明
を完成したのである。 As a result of intensive studies on this point, the present inventors discovered that all leaks can be completely repaired with a simple operation by effectively using the adhesive that forms the adhesive end of the module, and have developed the present invention. It was completed.
すなわち本発明は、中空糸膜を収容してなるモ
ジユールの中空糸開口端をもつ接着端面の少くと
も一端面上に流動性をもつ接着剤を付与し、該接
着剤を加圧しリーク部位に侵入固化せしめた後封
止されたリーク部位でさらに切断することを特徴
とする中空糸膜モジユールのリーク補修方法であ
る。 That is, the present invention applies a fluid adhesive to at least one end surface of the adhesive end surface having the hollow fiber open end of a module containing a hollow fiber membrane, and pressurizes the adhesive to infiltrate the leakage site. This is a method for repairing a leak in a hollow fiber membrane module, which is characterized by further cutting at a leak site that has been solidified and then sealed.
本発明で用いる中空糸は、流体の処理に使用で
きるものであればいかなるものでもよく、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、PVA系、ポリアミド系、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、ポリオレフイン系、
ポリメチルメタクリレート系等各種のものが使用
できる。またその外径は30〜3000μ程度、膜厚は
５〜1000μ程度のものが使用できる。これら中空
糸を数千本から数万本に集束し、一束又は複数束
として筐体内に一体構造又は脱着可能な膜素子と
して収容する。筐体はその目的、用途に応じて材
質、形状、寸法共に種々変更することができる。
例えば人工腎臓用モジユールでは、ポリプロピレ
ン、ポリカーボネート等のプラスチツクスからな
る円筒状、長矩形状、又は扁平矩形状の筐体が用
いられる。工業用モジユールではプラスチツクス
や金属、ガラス製の筐体が用いられる。所定の筐
体に収容された中空糸膜は、少くともその一端を
ポリウレタン、シリコーン樹脂、エポキシ樹脂、
ビニルエステル樹脂、天然ゴム、各種の合成ゴム
等の適当な接着剤で封止する。封止法は遠心力を
利用する方法、又は筐体の下方から接着剤を圧入
する方法等を用いる。中空糸束はその一端又は両
端が筐体の端部に対して開口をもつように接着剤
でシールされる。両端が開口するモジユールは、
中空糸内に流体を流す透析用モジユールあるいは
内圧循環式の限外過用モジユール等があり、一
端開口のモジユールは外圧循環式の逆浸透用モジ
ユール、限外過用モジユール、外圧全過方式
用モジユール等に使用される。ここで中空糸の他
端は接着剤あるいは膜素材自身の融着などで封止
され、筐体内に自由端をもつように収容される構
造もある。 The hollow fibers used in the present invention may be of any material as long as they can be used for fluid treatment, including glass, regenerated cellulose, cellulose derivatives such as cellulose ester, PVA, polyamide, polyester, polyacrylonitrile, and silicone resin. type, polysulfone type, polyolefin type,
Various materials such as polymethyl methacrylate can be used. Moreover, those having an outer diameter of about 30 to 3000 μm and a film thickness of about 5 to 1000 μm can be used. These hollow fibers are bundled into several thousand to tens of thousands of fibers and housed in a housing as a single bundle or multiple bundles as an integral structure or as a detachable membrane element. The material, shape, and dimensions of the casing can be changed in various ways depending on its purpose and use.
For example, an artificial kidney module uses a cylindrical, rectangular, or flat rectangular housing made of plastic such as polypropylene or polycarbonate. Industrial modules use housings made of plastic, metal, or glass. The hollow fiber membrane housed in a predetermined housing has at least one end made of polyurethane, silicone resin, epoxy resin,
Seal with a suitable adhesive such as vinyl ester resin, natural rubber, or various synthetic rubbers. The sealing method uses a method that utilizes centrifugal force or a method that press-fits an adhesive from below the casing. The hollow fiber bundle is sealed with adhesive so that one or both ends thereof are open to the end of the housing. Modules with open ends are
There are modules for dialysis that flow fluid through hollow fibers, modules for ultra-passage that use internal pressure circulation, etc. Modules that are open at one end are modules for reverse osmosis that use external pressure circulation, modules for ultrafiltration, and modules that use external pressure all-passage. etc. Here, the other end of the hollow fiber is sealed with an adhesive or the membrane material itself is fused, and there is also a structure in which the hollow fiber is housed in a housing with a free end.
接着剤でシールされた中空糸端部に開口をもた
せるように接着部分を切断する。一応の開口部が
形成された接着端面において本発明のリーク補修
を行う。リーク個所を予め認知したい場合は、例
えば中空糸外面に加圧ガスを供給し、開口端部を
水中に浸漬して気泡の発生個所として認知する。
他の方法として中空糸外面に加圧ガスを供給し、
該加圧ガスの圧力低下から、リークの有無を判断
する。さらに本出願人の出願した、シユリーレン
光学系を用いた光学系装置によるリーク個所の発
見法によつても認知できる（特願昭52−50416
（特開昭53−134775号公報））。リーク個所がほぼ
認知できる場合は、リーク個所を覆う面積に、又
リーク個所が認知できない場合は、接着端部の切
断面全体に、流動性のある接着剤を付与する。こ
こで付与する接着剤は、すでに接着端部を形成し
ている接着剤と必ずしも同種のものでなくてもよ
いが、接着剤の新和性からは、同種のものを用い
るのが普通である。必要な流動性は圧力、加圧時
間、中空糸の内径、接着剤の比重及び、切断面の
大きさ等から適宜選択できるが、3c.p.〜10000p
程度より好ましくは100c.p.〜1000p程度のものを
用いるのが望ましい。この粘度は、接着剤がリー
ク個所に適当に加圧されて侵入し、固化するため
に重要な因子である。あまり粘度が低いと、侵入
が過度となり、他の中空糸膜や筐体面にまで付着
し汚損することとなり、あまり粘度が高いと侵入
が不十分となり、次の切断によりリークのない完
全な開口端面を形成し難くなる。 Cut the adhesive part to leave an opening at the end of the hollow fiber sealed with adhesive. The leak repair of the present invention is performed on the bonded end surface where a certain opening has been formed. If it is desired to identify a leak location in advance, for example, pressurized gas is supplied to the outer surface of the hollow fiber, and the open end is immersed in water to identify the location where bubbles are generated.
Another method is to supply pressurized gas to the outer surface of the hollow fiber,
The presence or absence of a leak is determined from the pressure drop of the pressurized gas. Furthermore, it can also be recognized by the method of finding leakage points using an optical system device using a Schilleren optical system, which was filed by the present applicant (Japanese Patent Application No. 52-50416).
(Japanese Unexamined Patent Publication No. 134775/1983)). If the leak is almost perceptible, apply a fluid adhesive to the area covering the leak; if the leak is not perceptible, apply fluid adhesive to the entire cut surface of the adhesive end. The adhesive applied here does not necessarily have to be the same type of adhesive as the adhesive that has already formed the adhesive end, but from the viewpoint of the novelty of the adhesive, it is normal to use the same type of adhesive. . The required fluidity can be selected depending on the pressure, pressurization time, inner diameter of the hollow fiber, specific gravity of the adhesive, size of the cut surface, etc.;
It is preferable to use one with a particle size of about 100 c.p. to 1000 p. This viscosity is an important factor in ensuring that the adhesive is appropriately pressurized and penetrates into the leak area and hardens. If the viscosity is too low, the penetration will be excessive, and it will adhere to and stain other hollow fiber membranes and the housing surface.If the viscosity is too high, the penetration will be insufficient, and the next cut will result in a completely open end surface with no leaks. becomes difficult to form.
粘度が適当であれば接着剤の種類は特に限定さ
れない。二液硬化型のポリウレタン、エポキシ、
シリコン、一液型溶剤タイプの合成ゴム、天然ゴ
ム、触媒重合型のビニルエステル、不飽和エステ
ル、ホツトメルトタイプのエチレン―酢ビコポリ
マーなどが特によい結果を与える。適当な粘度の
接着剤を付与した後、接着剤を中空糸内に侵入さ
せるよう加圧する。即ち接着剤を付与した端面に
適当な筐体を設置して閉空間を形成し、該筐体内
に加圧ガスを供給して接着剤に押圧力を加える。
正常な部分は接着剤がある程度侵入すると平衡に
達し、それ以上は侵入しない。 The type of adhesive is not particularly limited as long as it has an appropriate viscosity. Two-component curing polyurethane, epoxy,
Particularly good results are obtained with silicone, one-component solvent type synthetic rubber, natural rubber, catalytically polymerized vinyl ester, unsaturated ester, and hot melt type ethylene-vinyl acetate copolymer. After applying an adhesive of a suitable viscosity, pressure is applied so that the adhesive penetrates into the hollow fibers. That is, a suitable housing is installed on the end surface to which the adhesive has been applied to form a closed space, and pressurized gas is supplied into the housing to apply a pressing force to the adhesive.
A normal part will reach equilibrium when the adhesive has penetrated to a certain extent, and no further penetration will occur.
一方リーク個所からは、外気が侵入しようとす
るのでかゝる駆動力により、接着剤がリーク個所
から選択的に侵入する。接着剤の侵入が十分行わ
れたら加圧したまま固化せしめるか或いは加圧を
開放し、侵入した接着剤を固化せしめる。接着剤
の付与は一端面又は二端面同時に行なつてもよ
い。侵入した接着剤が固化後、新しい中空糸開口
端が形成されるよう再度接着端部を切断する。付
与した接着剤はリーク個所以外も、侵入するが、
かゝる場合は、そのような部位をこえ、リーク個
所のみに接着剤が侵入している部位で切断すれ
ば、有効な中空糸の開口部と封止されたリーク個
所をもつ完全な新しい接着端面が得られる。 On the other hand, the outside air tries to enter from the leak location, and the adhesive selectively enters from the leak location due to the driving force. When the adhesive has sufficiently penetrated, the adhesive can be solidified while being pressurized, or the pressure can be released and the adhesive that has penetrated can be solidified. The adhesive may be applied to one end surface or both end surfaces simultaneously. After the adhesive has solidified, the adhesive end is cut again to form a new open end of the hollow fiber. The applied adhesive will penetrate into areas other than the leak area, but
In such a case, if you cut beyond that point and at a point where the adhesive has penetrated only to the leak point, you will have a completely new bond with an effective hollow fiber opening and a sealed leak point. An end face is obtained.
本発明によれば、リークの封止が従来の方法に
比して容易でかつ完全に行なえるので、従来は補
修不能として放棄したモジユールも十分に補修さ
れて使用できるので、全体としての製品のコスト
低減に有用である上に、不完全な補修による事故
を未然に防止できるとの大きな効果がある。 According to the present invention, leakage can be sealed more easily and completely than with conventional methods, and modules that were conventionally abandoned as unrepairable can be sufficiently repaired and used, resulting in improved product quality as a whole. In addition to being useful for cost reduction, it also has the great effect of preventing accidents caused by incomplete repairs.
先に本発明者らが出願した減圧により補修する
方法では、減圧による差圧はせいぜい１Kg／cm2で
あり、１Kg／cm2以上ではじめて認知出来る微少な
リークはそのままでは補修出来ないのに対して、
本発明の加圧にする方法では差圧を大きくとれる
ので、微少なリークでも補修可能である。 In the method of repair by depressurization previously applied by the present inventors, the differential pressure due to depressurization is at most 1Kg/ cm2 , and a minute leak that can only be recognized at 1Kg/cm2 or more cannot be repaired as it is. hand,
With the pressurization method of the present invention, a large differential pressure can be maintained, so even a minute leak can be repaired.
以下実施例により本発明を説明する。 The present invention will be explained below with reference to Examples.
実施例 １
外径300ミクロン膜厚25ミクロンをもつ再生セ
ルロース中空糸10000本を、外径40mm長さ350mmの
ポリプロピレン製筐体に収容し、両端をポリウレ
タンで接着する。接着剤が十分固化した後、中空
糸開口端が出るように切断する。このモジユール
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所、１端
部は２リーク、他端部は３リーク（うち１リーク
は接着剤部分の孔）あることを確認した。Example 1 10,000 regenerated cellulose hollow fibers with an outer diameter of 300 microns and a film thickness of 25 microns were housed in a polypropylene casing with an outer diameter of 40 mm and a length of 350 mm, and both ends were bonded with polyurethane. After the adhesive has sufficiently solidified, cut the hollow fibers so that the open ends are exposed. The end face of this module was immersed in water, pressurized gas was supplied to the outside of the hollow fiber membrane, and leaks were investigated from the generation of air bubbles. Two leaks occurred at one end, and three leaks occurred at the other end (one leak was due to adhesive bonding). It was confirmed that there was a hole in the agent part.
まず、モジユールの一端面に粘度2000c.p.のポ
リウレタン接着剤を全面に約５mm厚みに塗布し他
端面をめくらとし、接着剤面を0.8Kg／cm2となる
よう加圧する。10分後加圧を中止し、接着剤が固
化後、他端面に同様に接着剤を塗布し加圧し固化
せしめた。次いで両端部の中空糸固定個所を切断
し、新たな開口端部を形成した。補修後のモジユ
ールを再度リークテストしたが、リークは全く認
められなかつた。 First, a polyurethane adhesive with a viscosity of 2000 c.p. is applied to the entire surface of one end of the module to a thickness of approximately 5 mm, the other end is blinded, and pressure is applied to the adhesive surface to a pressure of 0.8 kg/cm 2 . After 10 minutes, the pressure was stopped, and after the adhesive had solidified, the adhesive was applied to the other end face in the same manner and was pressed and solidified. Next, the hollow fiber fixed portions at both ends were cut to form new open ends. The repaired module was tested for leaks again, but no leaks were detected.
実施例 ２
外径300ミクロン膜厚25ミクロンのエチレン―
ビニルアルコールコポリマー中空糸を5000本収容
した人工腎臓用モジユールを作製する。モジユー
ルの両端部のリークをシユリーレン光学系装置に
より確認した。200p.のたれ性を改良したエポキ
シ接着剤をモジユールの両端面のリーク個所附近
に５mm厚みに塗布後実施例１と同様にして0.9
Kg／cm2に加圧する。２分後に加圧をやめ接着剤が
固化後、新たに開口端面を形成させた。再度リー
クテストを行なつたが、もはやリークの発生はな
かつた。Example 2 Ethylene with an outer diameter of 300 microns and a film thickness of 25 microns.
An artificial kidney module containing 5000 vinyl alcohol copolymer hollow fibers will be created. Leakage at both ends of the module was confirmed using a Schilleren optical system. After applying 200p. epoxy adhesive with improved dripping properties to a thickness of 5mm near the leakage point on both end faces of the module, apply 0.9mm epoxy adhesive in the same manner as in Example 1.
Pressurize to Kg/ cm2 . After 2 minutes, the pressure was stopped and the adhesive solidified, after which a new open end surface was formed. I ran the leak test again, but there was no longer a leak.
実施例 ３
長さ１ｍのダイアライザー用ポリビニルアルコ
ール中空繊維12000本をエポキシ系接着剤で両端
をシールし、一応切断して両端開放の脱着可能な
膜素子を製作した。この膜素子を水に浸漬し内圧
方式で加圧してリークの有無を調べたところ、中
空糸の破損と思われるリークが２ケ所、シール不
良と思われるリークが１ケ所見られた。そこで一
接着端面に粘度が100ポイズのエポキシ系接着剤
を塗布し、他端はめくらをして0.7Kg／cm2の加圧
にし、硬化するまで加圧を続けた。次いで他端側
のめくらを取り外し、同じ接着剤を塗布して0.7
Kg／cm2の加圧を続けて硬化せしめた。次いで両端
シール部を切断して開口端を形成せしめた。再び
水中でリークテストしたところ今度は１本のリー
クもなく、補修は完全であつた。Example 3 12,000 polyvinyl alcohol hollow fibers for dialyzers each having a length of 1 m were sealed at both ends with an epoxy adhesive and then cut to produce a removable membrane element with both ends open. When this membrane element was immersed in water and pressurized using an internal pressure method to check for leaks, two leaks that appeared to be due to damage to the hollow fibers and one leak that appeared to be due to poor sealing were found. Therefore, an epoxy adhesive with a viscosity of 100 poise was applied to one adhesive end, the other end was blinded, and a pressure of 0.7 kg/cm 2 was applied, and the application of pressure was continued until it hardened. Next, remove the blind on the other end, apply the same adhesive, and apply 0.7
Cure was continued by applying a pressure of Kg/cm 2 . Next, the sealed portions at both ends were cut to form open ends. A leak test was conducted underwater again, and this time there was no leak, and the repair was complete.
実施例 ４
長さ30cmの均一多孔質ポリビニルアルコール系
中空繊維150本をエポキシ系接着剤でシールし、
一応切断して片持タイプの脱着可能な膜素子を製
作した。この膜素子を水に浸漬し内圧方式で加圧
してリークの有無を調べたところ５ケ所見られ
た。そこで接着端面に粘度が1000p.のエポキシ系
接着剤を塗布し1.5Kg／cm2の加圧にし、硬化せし
めた。次いで端面を切断して開口端を形成せしめ
た。再び水中でリークテストをしたところリーク
は見られず補修は完全であつた。Example 4 150 homogeneous porous polyvinyl alcohol hollow fibers with a length of 30 cm were sealed with epoxy adhesive,
I cut it to make a cantilever type detachable membrane element. When this membrane element was immersed in water and pressurized using an internal pressure method to check for leaks, five leaks were found. Therefore, an epoxy adhesive with a viscosity of 1,000 p. was applied to the adhesive end face, and a pressure of 1.5 kg/cm 2 was applied to cure it. The end face was then cut to form an open end. When a leak test was conducted underwater again, no leaks were found and the repair was complete.
Claims (1)
開口端をもつ接着端面の少なくとも一端面上に流
動性ある接着剤を付与し、該接着剤を加圧しリー
ク部位に侵入固化せしめた後封止されたリーク部
位でさらに切断することを特徴とする中空糸膜モ
ジユールのリーク補修方法。1. A fluid adhesive is applied to at least one end surface of the bonded end surface having the hollow fiber open end of a module containing a hollow fiber membrane, and the adhesive is pressurized to enter the leak site and solidify, followed by sealing. 1. A method for repairing a leak in a hollow fiber membrane module, which comprises further cutting at a leak site that has been removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4828078A JPS54138874A (en) | 1978-04-20 | 1978-04-20 | Repairing method for leakage of hollow yarn membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4828078A JPS54138874A (en) | 1978-04-20 | 1978-04-20 | Repairing method for leakage of hollow yarn membrane module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54138874A JPS54138874A (en) | 1979-10-27 |
| JPS6260124B2 true JPS6260124B2 (en) | 1987-12-15 |
Family
ID=12799013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4828078A Granted JPS54138874A (en) | 1978-04-20 | 1978-04-20 | Repairing method for leakage of hollow yarn membrane module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54138874A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55110560A (en) * | 1979-02-20 | 1980-08-26 | Kawasumi Lab Inc | Method of repairing leaking portion of hollow fiber type artifictal kidney |
| JPS56120994A (en) * | 1980-02-29 | 1981-09-22 | Tokyo Shibaura Electric Co | Method of making hollow film separation module |
| JPS6040065A (en) * | 1983-08-12 | 1985-03-02 | テルモ株式会社 | Hollow yarn type blood treating device |
| US5192478A (en) * | 1984-10-22 | 1993-03-09 | The Dow Chemical Company | Method of forming tubesheet for hollow fibers |
| JPH0659308B2 (en) * | 1988-10-24 | 1994-08-10 | テルモ株式会社 | Hollow fiber membrane blood processor and method for manufacturing the same |
| JPH06134268A (en) * | 1992-10-30 | 1994-05-17 | Nok Corp | Method and device for detecting flaw position of hollow yarn membrane module and repairing of flaw |
| US6766259B2 (en) | 2002-07-29 | 2004-07-20 | Baxter International Inc. | System and a method for detecting fiber damage in a dialyzer |
| JP5811738B2 (en) * | 2011-09-26 | 2015-11-11 | 三菱レイヨン株式会社 | Method for repairing hollow fiber membrane module and hollow fiber membrane module |
-
1978
- 1978-04-20 JP JP4828078A patent/JPS54138874A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54138874A (en) | 1979-10-27 |
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