JPH03131324A - Hollow fiber membrane module and preparation thereof - Google Patents
Hollow fiber membrane module and preparation thereofInfo
- Publication number
- JPH03131324A JPH03131324A JP26908789A JP26908789A JPH03131324A JP H03131324 A JPH03131324 A JP H03131324A JP 26908789 A JP26908789 A JP 26908789A JP 26908789 A JP26908789 A JP 26908789A JP H03131324 A JPH03131324 A JP H03131324A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- sealant
- bundle
- membrane bundle
- 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
- 239000012528 membrane Substances 0.000 title claims abstract description 85
- 239000012510 hollow fiber Substances 0.000 title claims abstract description 64
- 239000000565 sealant Substances 0.000 claims abstract description 28
- 239000000945 filler Substances 0.000 claims abstract description 9
- 229920001296 polysiloxane Polymers 0.000 abstract description 7
- 229920001971 elastomer Polymers 0.000 abstract 2
- 239000000806 elastomer Substances 0.000 abstract 2
- 239000007788 liquid Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 12
- 239000013013 elastic material Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- -1 polyethylene Polymers 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229920002050 silicone resin Polymers 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000007124 Brassica oleracea Species 0.000 description 1
- 235000003899 Brassica oleracea var acephala Nutrition 0.000 description 1
- 235000012905 Brassica oleracea var viridis Nutrition 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000004850 liquid epoxy resins (LERs) Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000002023 wood Substances 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、その最端部を異種材料で２層に固定すること
によって補強された中空糸膜モジュールおよびその製造
方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a hollow fiber membrane module reinforced by fixing its outermost end with two layers of different materials, and a method for manufacturing the same.
（従来の技術）
代表的な膜分離モジュール形態の１つである中空糸膜モ
ジュールは、単位体積当りの膜面積が大きいこと、膜処
理すべき原液と透過液とを隔てるためのシール機構が簡
単であることなど、種々の利点を有している。このよう
な中空糸膜モジュールは、従来、複数本の中空糸膜を束
ねた後ケール内に装填し、シール剤を注入・充填して、
中空糸膜を相互に固着させると共にケースの端部を気密
シールすることにより製造されているが、中空糸膜な接
着・固定するシール剤は、高度の耐圧性・耐久性が要求
されるため通常は比較的硬度の高いものが用いられてい
る。(Prior art) The hollow fiber membrane module, which is one of the typical membrane separation module types, has a large membrane area per unit volume and a simple sealing mechanism to separate the raw solution to be processed through the membrane and the permeate. It has various advantages such as: Conventionally, such hollow fiber membrane modules are made by bundling multiple hollow fiber membranes, loading them into a kale, and injecting and filling a sealant.
It is manufactured by fixing the hollow fiber membranes together and airtightly sealing the edges of the case, but the sealant that adheres and fixes the hollow fiber membranes is usually not used because it requires a high degree of pressure resistance and durability. A material with relatively high hardness is used.
ところがこのようにして製作されたモジュールは、比較
的高い温度及び圧力条件の組み合せで原液を中空糸膜の
内側に通して使用した場合、シール剤と中空糸膜の界面
で応力集中が起こり中空糸膜が破損するという問題があ
った。However, when the module manufactured in this way is used by passing the stock solution inside the hollow fiber membrane under a combination of relatively high temperature and pressure conditions, stress concentration occurs at the interface between the sealant and the hollow fiber membrane, causing the hollow fiber to collapse. There was a problem that the membrane was damaged.
つまりモジュールに高温下で内圧をかけると、中空糸膜
をその円周方向に膨らませようとする力が働くが、比較
的硬度の高いシール剤で固着されている部分は全く変形
しないのに対して、中空糸膜部は応力の大きさに従って
自由変形するため界面において急激な変形量の差を生じ
、この部分を起点として中空糸膜がその長さ方向に沿っ
て割れたり、あるいは界面に沿った糸切れを起こしたり
して、本来中空糸膜が持っている強度を有効にいかしき
れないという難点があった。In other words, when internal pressure is applied to the module at high temperature, a force is exerted that tries to expand the hollow fiber membrane in the circumferential direction, but the part that is fixed with a relatively hard sealant does not deform at all. Since the hollow fiber membrane deforms freely according to the magnitude of the stress, a sharp difference in the amount of deformation occurs at the interface, and the hollow fiber membrane may crack along its length from this point or break along the interface. The problem was that the fibers could break, making it impossible to make full use of the inherent strength of the hollow fiber membrane.
なお接着端部を補強する方法としてはいくつかの方法が
知られている。例えば、特開昭５９−４４０３には、接
着固定端近傍の中空糸表面に樹脂を塗布含浸させること
により外表面上のＳＳ成分の蓄積による膜の破損を防ぐ
方法が示されている。この方法は束の外周部の曲げモー
メントや、端部を固着する際に発生する熱などによって
膜が劣化するのを防ぐことはてきるが、中空糸膜内側か
らの圧力に対するモジュールの耐圧性を向トさせるのは
むずかしい。また実開昭６１−１３２００２には、中空
糸膜束を固着した層に接して弾性体よりなる層を形成さ
せモジュールを補強する方法が示されている。この方法
は、シール剤と中空糸膜の界面を補強するのに有効な方
法ではあるが、中空糸膜同士が密に接している部分、と
りわけ中空糸膜束の中央部において均一な厚みの弾性体
層を形成させにくく、この部分で膜の破損が起こりやす
いという問題がありだ。これは、硬化前の液状弾性体を
モジュー゛ルの端部に充填する際、中空糸膜同士が密に
接している部分には、この液が分配しにくいことによる
ものである。また、このように弾性体層の厚みが不均一
であるという点は、いわゆる「デッドスペース」の点か
ら見ても好ましくない。弾性体層の厚みが不均一で、穴
やくぼみとなっている部分は処理液がよどみ易く、そこ
を起点に腐敗や菌の繁殖がおこる場合があり、こうした
問題は医薬・食品分野において深刻になる。Note that several methods are known for reinforcing the bonded end. For example, Japanese Patent Application Laid-Open No. 59-4403 discloses a method of preventing membrane damage due to accumulation of SS components on the outer surface by coating and impregnating the surface of the hollow fiber near the adhesive fixed end with a resin. Although this method prevents the membrane from deteriorating due to the bending moment at the outer periphery of the bundle and the heat generated when fixing the ends, it does not reduce the pressure resistance of the module against pressure from inside the hollow fiber membrane. It's difficult to reverse it. Furthermore, Japanese Utility Model Application No. 61-132002 discloses a method of reinforcing a module by forming a layer made of an elastic material in contact with a layer to which a hollow fiber membrane bundle is fixed. Although this method is effective for reinforcing the interface between the sealant and the hollow fiber membranes, it is important to ensure that the elasticity of the uniform thickness does not occur in the areas where the hollow fiber membranes are in close contact with each other, especially in the center of the hollow fiber membrane bundle. The problem is that it is difficult to form a body layer, and the membrane is easily damaged in this area. This is because, when filling the ends of the module with the liquid elastic material before curing, this liquid is difficult to distribute to the areas where the hollow fiber membranes are in close contact with each other. Further, such non-uniform thickness of the elastic layer is also undesirable from the viewpoint of so-called "dead space". Processing liquid tends to stagnate in areas where the thickness of the elastic layer is uneven and there are holes or depressions, which can lead to spoilage and bacterial growth, and these problems are becoming more serious in the pharmaceutical and food fields. Become.
（発明が解決しようとする問題点）
本発明は、中空糸膜内側からの圧力に対し十分な耐圧性
を持ち、デッドスペースが生じない構造を持った中空糸
膜モジュールおよびその製造方法を提供せんとするもの
である。(Problems to be Solved by the Invention) The present invention provides a hollow fiber membrane module that has sufficient pressure resistance against pressure from inside the hollow fiber membrane and has a structure that does not generate dead space, and a method for manufacturing the same. That is.
（問題点を解決するための手段）
本発明者らは、上記の問題点を克服すべく鋭意検討した
結果、本発明を完成したものである。すなわち、本発明
は、中空糸膜モジュールの中空糸膜束端部に均一な厚み
を持った弾性体層をシール部分に隣接して形成させるこ
とを第１の特徴とし、これによって中空糸膜内側からの
圧力に対し十分な耐圧性を持つとともにデッドスペース
の問題を解決できることを見出したものである。更に本
発明は、この均一な厚みの弾性体層を形成させるために
中空糸膜束端部に複数の充填物をはさみこんだままシー
ル剤で固着し、中空糸膜束端部を分割配置したまま固着
することを第２の特徴とする。(Means for Solving the Problems) The present inventors have completed the present invention as a result of intensive studies to overcome the above problems. That is, the first feature of the present invention is that an elastic layer having a uniform thickness is formed adjacent to the sealing part at the end of the hollow fiber membrane bundle of the hollow fiber membrane module, thereby making the inner side of the hollow fiber membrane It was discovered that the material has sufficient pressure resistance against pressure from the surrounding area and can solve the problem of dead space. Furthermore, in the present invention, in order to form an elastic layer with a uniform thickness, a plurality of fillers are sandwiched at the ends of the hollow fiber membrane bundle and fixed with a sealant, and the ends of the hollow fiber membrane bundle are divided and arranged. The second feature is that it remains firmly fixed.
本発明の特徴の１つである弾性体層はシール部分と接し
て設けられ、層全体にわたって均一な厚みを持つ。この
場合弾性体層の厚みはシール剤と中空糸膜の界面におけ
る応力集中を緩和するため５〜５０ｍｍ、好ましくは５
〜１０ｍｍが適当である。またここでいう「均一・な厚
み」とは、デッドスペースとなる穴やくぼみが生じてい
ないことを示す。実質上これらの穴やくぼみが問題とな
らないような範囲としては、経験的にみて、弾性体層全
体における厚みの最大値と最小値の差を３ｍｍ以内にお
さえることが好ましい。弾性体の材質としては、シリコ
ーン、ウレタンその他のゴム状物質をあげることができ
る。The elastic layer, which is one of the features of the present invention, is provided in contact with the seal portion and has a uniform thickness over the entire layer. In this case, the thickness of the elastic layer is 5 to 50 mm, preferably 5 mm to alleviate stress concentration at the interface between the sealant and the hollow fiber membrane.
~10 mm is appropriate. Furthermore, the term "uniform thickness" used herein means that there are no holes or depressions that would become dead spaces. Based on experience, it is preferable to keep the difference between the maximum and minimum thicknesses of the entire elastic layer within 3 mm so that these holes and depressions do not substantially pose a problem. Examples of the material for the elastic body include silicone, urethane, and other rubber-like substances.
次に製造方法について述べる。この方法は前述した特徴
を持つ中空糸膜モジュールを作製するのに有効な方法で
あり、中空糸膜束へ充填物をはさみこんだまま固着する
ことを特徴とする。これによって膜束は分割配置された
状態で固着され、その間隙を通って硬化前の液状弾性体
は層全体に均に分配され硬化するため、結果として均一
な厚みを持った弾性体層がシール部分に隣接して形成さ
れる。分割配置の形態はこれを助長するようなものであ
れば特に制限されるべきものではないが、中空糸同士の
接触箇所をできるだけ少なくするという点から、第１図
のような形態が適当である。この時間隙の大きさは充填
される液状弾性体の粘度にもよるが、１ｍｍ以上取るの
が好ましい。分割された１つ１つの中空糸膜束の大きさ
はできるだけ小さくするのが好ましいが、中空糸膜の本
数やケースの大きさ、あるいは製造時の作業性に左右さ
れる。しかしながらこれをあまり大きくすると１つ１つ
の束の中で弾性体層の厚みか不均一になるため、例えば
第１図においては１つ１つの中空糸膜束の列が５〜６列
の中空糸膜、好ましくは２〜３列の中空糸膜より構成さ
れるのが適当である。Next, the manufacturing method will be described. This method is an effective method for producing a hollow fiber membrane module having the above-mentioned characteristics, and is characterized by fixing the filling material to the hollow fiber membrane bundle while being sandwiched therein. As a result, the membrane bundle is fixed in a divided arrangement, and the uncured liquid elastic material passes through the gaps and is evenly distributed over the entire layer and hardens, resulting in an elastic layer with a uniform thickness. formed adjacent to the part. There are no particular restrictions on the form of the split arrangement as long as it facilitates this, but from the point of view of minimizing the contact points between the hollow fibers, the form shown in Figure 1 is appropriate. . Although the size of this time gap depends on the viscosity of the liquid elastic material to be filled, it is preferably 1 mm or more. The size of each divided hollow fiber membrane bundle is preferably made as small as possible, but it depends on the number of hollow fiber membranes, the size of the case, and the workability during manufacturing. However, if this is made too large, the thickness of the elastic layer within each bundle will become uneven, so for example in Figure 1, each hollow fiber membrane bundle has 5 to 6 rows of hollow fibers. Suitably, the membrane is composed of two to three rows of hollow fiber membranes.
以上のように中空糸膜（４）を分割配置した状態で固着
するには、希望の分割状態になるよう束間に充填物（１
）をはさみこんだままシール剤で固着するが、このシー
ル剤（２）としてはエポキシ樹脂、不飽和エポキシ樹脂
、不飽和ポリエステル樹脂、フェノール樹脂などの熱硬
化性樹脂が適当である。また束間にはさみこむ充填物の
大きさ、形、素材は中空糸膜束をどのように分割するか
によって決めるが、素材に関しては熱による変形や溶出
を考慮してシール剤と同一の素材（例えばエポキシ樹脂
）やポリエチレン、ポリプロピレンなどを用いるのが好
ましく、形状はシール剤との密着性を良くするために、
ネット状のものを用いたり板状のものを用いたりするこ
とができる。In order to fix the hollow fiber membrane (4) in a divided state as described above, filler (1) is placed between the bundles to achieve the desired divided state.
) is sandwiched and fixed with a sealant, and thermosetting resins such as epoxy resins, unsaturated epoxy resins, unsaturated polyester resins, and phenolic resins are suitable as the sealant (2). The size, shape, and material of the filler to be inserted between the bundles are determined by how the hollow fiber membrane bundle is divided, but the material should be made of the same material as the sealant (e.g. It is preferable to use materials such as epoxy resin), polyethylene, or polypropylene, and the shape is chosen to improve adhesion with the sealant.
A net-like material or a plate-like material can be used.
例えば第１図のように中空糸膜を分割配置したままエポ
キシ樹脂で固着するのであれば、巾１０ｍｍ、厚さ１ｍ
ｍ程度のエポキシ樹脂製の板（１）を中空糸膜束の各列
が５〜６列、好ましくは２〜３列の中空糸膜（４）より
構成されるように束にはさみこむ。For example, if the hollow fiber membrane is to be fixed with epoxy resin in a divided arrangement as shown in Figure 1, the width is 10 mm and the thickness is 1 m.
A plate (1) made of epoxy resin and having a diameter of about 1.5 m is inserted into the bundle so that each row of the hollow fiber membrane bundle is composed of 5 to 6 rows, preferably 2 to 3 rows of hollow fiber membranes (4).
第２図は中空糸膜束（４）へ充填物（１）をはさみこん
だ状態を示す正面図、第３図はその側面図である。FIG. 2 is a front view showing a state in which the filler (1) is inserted into the hollow fiber membrane bundle (4), and FIG. 3 is a side view thereof.
次に中空糸膜束がケースに挿入できるよう束の外周上に
はみ出た充填物部分を切断し、ケースに挿入する。この
時、シール剤を注入後これらの充填物がシール剤の中に
かくれ、しかもシール剤の硬化後も中空糸膜束間に間隙
か残されるように各充填物（１）の位置を調整してから
ケースに挿入する。この後硬化前の液状シール剤を注入
し硬化させる。これには遠心接着法等の公知の方法を採
用することができる。Next, the filling portion protruding from the outer periphery of the bundle is cut off so that the hollow fiber membrane bundle can be inserted into the case, and the bundle is inserted into the case. At this time, after injecting the sealant, adjust the position of each filler (1) so that these fillers are hidden in the sealant, and even after the sealant hardens, a gap is left between the hollow fiber membrane bundles. then insert it into the case. After this, a liquid sealant before hardening is injected and hardened. For this purpose, a known method such as centrifugal adhesion can be used.
充填物がシール剤と同一素材の時、又はシール剤の中に
完全に埋めこまれる場合は図のようにはっきりとみるこ
とはできない。If the filling is made of the same material as the sealant, or if it is completely embedded in the sealant, it cannot be clearly seen as shown in the figure.
シール剤の硬化が完了したら、シール剤層（２）ととな
りあう位置に弾性体層（３）を形成させる（第１図）。After curing of the sealant is completed, an elastic layer (3) is formed at a position adjacent to the sealant layer (2) (FIG. 1).
弾性体としては、前にも述べたようにシリコーン、ウレ
タン等のゴム状物質を用いることができるが、これらは
通常硬化前の液状のものを加熱等で硬化させて希望の形
態で固定する。またこの時、中空糸膜束内での分配を更
に容易にするため、所定の希釈剤を加えて液状弾性体の
粘度を下げることもできる。この液状弾性体をモジュー
ルに注入するには種々の方法か考えられるが、ケースの
端部に設けられている、フラックス口にビニールチュー
ブ等を取り付けて、ヘット差により流しこむのが簡便な
方法である。As mentioned above, rubber-like substances such as silicone and urethane can be used as the elastic body, but these are usually liquid before hardening and then hardened by heating or the like to be fixed in the desired form. Further, at this time, in order to further facilitate distribution within the hollow fiber membrane bundle, a predetermined diluent may be added to lower the viscosity of the liquid elastic material. There are various ways to inject this liquid elastic material into the module, but the easiest way is to attach a vinyl tube to the flux port provided at the end of the case and pour it into the module using different heads. be.
モジュールケースを垂直に保持し、液か完全に注入され
た後にこれを加熱し弾性体を硬化させることにより、東
金体に均一な厚みを持った弾性体層が形成される。この
時注入される液状弾性体の量は硬化後の弾性体層の厚み
が５〜５０ｍｍ、好ましくは５〜１０ｍｍになるように
調整する。またこの液状弾性体をより完全に中空糸膜束
の細部にまで注入しようとする場合や、液状弾性体の粘
度が比較的高い場合などには、シール剤注入時と同様に
遠心力を利用した注入を行なうこともできる。By holding the module case vertically and heating the liquid after it has been completely injected to harden the elastic body, an elastic layer with a uniform thickness is formed on the east metal body. The amount of liquid elastic material injected at this time is adjusted so that the thickness of the elastic material layer after curing is 5 to 50 mm, preferably 5 to 10 mm. In addition, when trying to inject this liquid elastic material more completely into the details of the hollow fiber membrane bundle, or when the liquid elastic material has a relatively high viscosity, centrifugal force can be used in the same way as when injecting the sealant. Injection can also be performed.
以下本発明を実施例を用いて説明するが、本発明はこれ
らの実施例により何ら限定されるものではない。The present invention will be explained below using Examples, but the present invention is not limited to these Examples in any way.
（実施例１）
ポリエチレン製中空糸型精密濾過膜（外径３ｍｍ、内径
２ｍｍ、長さ１３００ｍｍ、平均孔径０．２ミクロン）
４００木を内径１００ｍｍ、肉厚５ｍｍ、長さ１１００
ｍｍのポリスルホン製ケースへ挿入した。この膜束の両
端部へ、厚み１ｍｍ、長さ１００ｍｍ、ｒｌｌ １０
ｍ ｍのエポキシ製板を６枚均等な間隔ではさみこみ（
第２図）、膜束からはみでた部分を切断した。更にこの
６枚の板の位置をシール剤か注入された後、これらの板
がシール剤の中に完全に入りこむような位置に調整し、
モジュール両端部にポリエチレン製のカップをして遠心
接着法で液状のエポキシ樹脂を注入した。樹脂の注入が
完了した後、９０℃で４時間処理して樹脂を硬化させた
。ポリエチレン製カップをはずしてモジュール両端部を
切断し、膜束が７つに分割配置されたままシールされた
中空糸膜モジュールを得た。(Example 1) Polyethylene hollow fiber precision filtration membrane (outer diameter 3 mm, inner diameter 2 mm, length 1300 mm, average pore diameter 0.2 microns)
400 wood, inner diameter 100mm, wall thickness 5mm, length 1100
It was inserted into a polysulfone case of mm. To both ends of this membrane bundle, a thickness of 1 mm, a length of 100 mm, rll 10
Insert six mm epoxy plates at even intervals (
(Fig. 2), the part protruding from the membrane bundle was cut. Furthermore, after the sealant has been injected, adjust the positions of these six plates so that they completely enter the sealant.
Polyethylene cups were placed at both ends of the module, and liquid epoxy resin was injected using the centrifugal gluing method. After the resin injection was completed, the resin was cured by treatment at 90° C. for 4 hours. The polyethylene cup was removed and both ends of the module were cut to obtain a sealed hollow fiber membrane module with the membrane bundle divided into seven parts.
次にこのモジュールを垂直にたてて、下端のフラックス
口より硬化前の液状シリコーン樹脂７５ｃｃを注入した
。室温で１時間放置した後、９０℃で４時間処理し樹脂
を硬化させた３、更に５０℃で１０時間処理しシリコー
ン樹脂を完全に硬化させた後に、モジュールのもう１端
にも同様の処理を施し、およそ１ｃｍ厚のシリコーン樹
脂弾性体層を形成させた。Next, this module was erected vertically, and 75 cc of uncured liquid silicone resin was injected from the flux port at the bottom end. After leaving it at room temperature for 1 hour, it was treated at 90℃ for 4 hours to harden the resin3. After further treatment at 50℃ for 10 hours to completely cure the silicone resin, the other end of the module was also treated in the same way. was applied to form a silicone resin elastic layer approximately 1 cm thick.
１
この中空糸成子ジュールを入圧３．５ｋｇ／ｃｍｌ、出
汁３．Ｏｋｇ／ｃｒｎ’、７０℃の純水て１時間運転し
た後、モジュールの濾水側からエアー加圧を行なったか
モジュール端面からのニアリークはなく、膜の破損はな
いものと判定さおだ。史に同様の運転条件で９時間運転
した後、同じ検査を行なったところ、端面からのニアリ
ークはなく膜の破損はないものと判定された。運転後の
モジュールを解体し膜の状態を観察したところ膜の破損
はみられなかった。またシリコーン弾性体層の厚みは１
０ケ所について測定したところ８〜１０ｍｍの巾を持っ
ており、実質的に均一な層が形成されデッドスペースは
なかった。1 This hollow fiber Nariko Joule was heated to an input pressure of 3.5 kg/cml and a stock of 3. After operating for 1 hour using pure water at 70°C and Okg/crn', there was no near leak from the end face of the module, probably because air was pressurized from the filtrate side of the module, and it was determined that there was no damage to the membrane. After 9 hours of operation under similar operating conditions, the same inspection was conducted and it was determined that there was no near leak from the end face and no damage to the membrane. When the module was disassembled after operation and the condition of the membrane was observed, no membrane damage was found. Also, the thickness of the silicone elastic layer is 1
When measured at 0 locations, the width was 8 to 10 mm, and a substantially uniform layer was formed with no dead space.
（実施例２〜３）
膜束にはさみこむエポキシ製板の仮数を８枚（実施例２
）、１０枚（実施例３）とする以外は、実施例１と同様
にモジュールを作製した。これを実施例１と同じ条件で
１時間運転した後、更に９時間運転しそれぞれエアー加
圧検査を行なったところ、いずれもモジュール端面から
のエアー ２
リークはなく、膜の破損はないものと判定された。また
運転後のモジュールを解体したところ膜の破損はみられ
ず、シリコーン弾性体層の厚みは実施例２で８〜１１ｍ
ｍ、実施例３で９〜１１ｍｍであり、いずれも実質的に
均一な層が形成されデッドスペースはなかった。(Examples 2 to 3) Eight mantissas of epoxy plates to be inserted into the membrane bundle (Example 2
), a module was produced in the same manner as in Example 1, except that the number of modules was 10 (Example 3). This was operated for 1 hour under the same conditions as in Example 1, and then operated for another 9 hours, and air pressurization tests were performed on each. There was no air leak from the end face of the module, and it was determined that there was no damage to the membrane. It was done. Furthermore, when the module was disassembled after operation, no damage to the membrane was observed, and the thickness of the silicone elastic layer was 8 to 11 m in Example 2.
m and 9 to 11 mm in Example 3, and a substantially uniform layer was formed in all cases, with no dead space.
（比較例）
膜束にエポキシ製板をはさみこまないで、実施例１と同
様にモジュールを作製した。これを実施例１と同じ条件
で１時間運転した後、減水側からのエアー加圧検査を行
なったところ、端面からのエアーリークが多数観察され
た。モジュールを解体して調べたところ、膜束中央部に
はほとんどシリコーンがいきわたっておらず、接着部界
面において十数本の膜が破裂をおこしていた。またシリ
コーン弾性体層は中央部では０ミリ、外周部では１２〜
１５ミリの厚みを持っており中央部がデッドスペースと
なるような構造となフていた。(Comparative Example) A module was produced in the same manner as in Example 1 without inserting the epoxy plate into the membrane bundle. After operating this for one hour under the same conditions as in Example 1, an air pressure test from the water reduction side was performed, and many air leaks from the end face were observed. When the module was disassembled and examined, it was found that the silicone had hardly spread to the center of the membrane bundle, and more than a dozen membranes had ruptured at the adhesive interface. In addition, the silicone elastic layer is 0 mm at the center and 12 mm at the outer periphery.
It was 15mm thick and had a structure with a dead space in the center.
（発明の効果）
本発明により、中空糸膜内側からの圧力に対して十分な
耐圧性を有し、デッドスペースか生じない構造を持った
中空糸膜モジュールを得ることかできる。(Effects of the Invention) According to the present invention, it is possible to obtain a hollow fiber membrane module having sufficient pressure resistance against pressure from inside the hollow fiber membrane and having a structure in which no dead space is generated.
第１図は本発明の中空糸膜モジュールの１端部を示す模
式図。第２図は中空糸膜束へ充填物をはさみこんだ状態
の止面図、第３図はその側面図である。FIG. 1 is a schematic diagram showing one end of the hollow fiber membrane module of the present invention. FIG. 2 is a top view of the hollow fiber membrane bundle with a filler sandwiched therein, and FIG. 3 is a side view thereof.
Claims (2)
ル剤によりケースに固着され、かつケース内の前記シー
ル部分に隣接して、均一な厚みを持った弾性体層が設け
られていることを特徴とする中空糸膜モジュール。(1) Both ends of the hollow fiber membrane bundle inserted into the case are fixed to the case with a sealant, and an elastic layer with a uniform thickness is provided adjacent to the sealed portion inside the case. A hollow fiber membrane module characterized by:
膜束端部を複数に分割配置した状態で固着するために、
先づ膜束端部に複数の充填物を充填した状態でシール剤
で固着し、その後シール部分ととなりあった中空糸膜束
端部に弾性体層を形成させることを特徴とする中空糸膜
モジュールの製造方法。(2) When fixing the hollow fiber membrane bundle to the case with a sealant, in order to fix the membrane bundle with the ends divided into multiple parts,
A hollow fiber membrane characterized in that the ends of the membrane bundle are first filled with a plurality of fillers and fixed with a sealant, and then an elastic layer is formed on the ends of the hollow fiber membrane bundle that become the sealed part. How the module is manufactured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26908789A JP2920543B2 (en) | 1989-10-18 | 1989-10-18 | Method for manufacturing hollow fiber membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26908789A JP2920543B2 (en) | 1989-10-18 | 1989-10-18 | Method for manufacturing hollow fiber membrane module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03131324A true JPH03131324A (en) | 1991-06-04 |
| JP2920543B2 JP2920543B2 (en) | 1999-07-19 |
Family
ID=17467489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26908789A Expired - Lifetime JP2920543B2 (en) | 1989-10-18 | 1989-10-18 | Method for manufacturing hollow fiber membrane module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2920543B2 (en) |
Cited By (6)
| 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 |
| US6620319B2 (en) | 1995-08-11 | 2003-09-16 | Zenon Enviromental Inc. | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
| US6685832B2 (en) | 1995-08-11 | 2004-02-03 | Zenon Environmental Inc. | Method of potting hollow fiber membranes |
| US7087173B2 (en) | 1995-08-11 | 2006-08-08 | Zenon Environmental Inc. | Inverted cavity aerator for membrane module |
| USRE42669E1 (en) | 1995-08-11 | 2011-09-06 | Zenon Technology Partnership | Vertical cylindrical skein of hollow fiber membranes and method of maintaining clean fiber surfaces |
| US8852438B2 (en) | 1995-08-11 | 2014-10-07 | Zenon Technology Partnership | Membrane filtration module with adjustable header spacing |
-
1989
- 1989-10-18 JP JP26908789A patent/JP2920543B2/en not_active Expired - Lifetime
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7063788B2 (en) | 1995-08-11 | 2006-06-20 | Zenon Environmental Inc. | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
| US7534353B2 (en) | 1995-08-11 | 2009-05-19 | Zenon Technology Partnership | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
| US8852438B2 (en) | 1995-08-11 | 2014-10-07 | Zenon Technology Partnership | Membrane filtration module with adjustable header spacing |
| US6620319B2 (en) | 1995-08-11 | 2003-09-16 | Zenon Enviromental Inc. | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
| US8075776B2 (en) | 1995-08-11 | 2011-12-13 | Zenon Technology Partnership | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
| US6685832B2 (en) | 1995-08-11 | 2004-02-03 | Zenon Environmental Inc. | Method of potting hollow fiber membranes |
| USRE42669E1 (en) | 1995-08-11 | 2011-09-06 | Zenon Technology Partnership | Vertical cylindrical skein of hollow fiber membranes and method of maintaining clean fiber surfaces |
| US6964741B2 (en) | 1995-08-11 | 2005-11-15 | Zenon Environmental Inc. | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fiber membranes |
| US6682652B2 (en) | 1995-08-11 | 2004-01-27 | Zenon Environmental Inc. | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fiber membranes |
| US7087173B2 (en) | 1995-08-11 | 2006-08-08 | Zenon Environmental Inc. | Inverted cavity aerator for membrane module |
| US7022231B2 (en) | 1995-08-11 | 2006-04-04 | Zenon Environmental Inc. | Apparatus incorporating potted hollow fiber membranes |
| US7615157B2 (en) | 1995-08-11 | 2009-11-10 | Zenon Technology Partnership | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
| US7708888B2 (en) | 1995-08-11 | 2010-05-04 | Zenon Technology Partnership | Apparatus for withdrawing permeate using an immersed vertical skein of hollow fibre membranes |
| AU696221B2 (en) * | 1995-09-21 | 1998-09-03 | 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 |
| US6331248B1 (en) | 1995-09-21 | 2001-12-18 | Asahi Kasei Kogyo Kabushiki Kaisha | Hollow fiber membrane module |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2920543B2 (en) | 1999-07-19 |
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