JPS60244304A - Hollow yarn filter module - Google Patents

Hollow yarn filter module

Info

Publication number
JPS60244304A
JPS60244304A JP9863384A JP9863384A JPS60244304A JP S60244304 A JPS60244304 A JP S60244304A JP 9863384 A JP9863384 A JP 9863384A JP 9863384 A JP9863384 A JP 9863384A JP S60244304 A JPS60244304 A JP S60244304A
Authority
JP
Japan
Prior art keywords
hollow fiber
fiber filtration
fixing member
hollow yarn
membranes
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
Application number
JP9863384A
Other languages
Japanese (ja)
Inventor
Toru Takemura
武村 徹
Haruhiko Yoshida
晴彦 吉田
Takuma Mukai
向井 琢磨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP9863384A priority Critical patent/JPS60244304A/en
Publication of JPS60244304A publication Critical patent/JPS60244304A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To develop a large hollow yarn filter module excellent in filtering capacity, in the hollow yarn filter module for water purifier having a ring shaped member and a fixing member for a large number of hollow yarn filter membranes, by providing spacers for stabilizing the hollow yarn filter membranes in the fixing member. CONSTITUTION:Hollow yarn filter membranes 3 are fixed to the inner surface of a ring shaped member 1 and a fixing member 2 acting as a partition member between water to be purified and purified water is connected to said member 1. In order to mutually isolate a large number of the hollow filter membranes 3 in the fixing member 2 and to uniformize the distribution of the hollow yarn filter membranes 3, spacers 4 each comprising an extremely thin and narrow film, a fine fibrous yarn or mesh prepared therefrom are mounted in the fixing member. By this method, the hollow yarn filter module, which has the uniform distribution of the hollow yarn filter membranes in the fixing member 2 thereof and is relatively large and enabled in large amount filtering treatment and excellent in a filtering function recovery property by backwashing, is obtained.

Description

【発明の詳細な説明】 [技術分野] 本発明は、浄水器用の中空糸濾過モジュールに関し、よ
り詳しくは、例えば原子力発電用水等のように金属イオ
ンや微顔なコロイド状物を含む用水を比較的大量に浄化
処理するための浄水器用に適した中空糸濾過モジュール
に関する。
[Detailed Description of the Invention] [Technical Field] The present invention relates to a hollow fiber filtration module for water purifiers, and more specifically, for comparison of water containing metal ions and fine colloidal substances, such as water for nuclear power generation. The present invention relates to a hollow fiber filtration module suitable for use in water purifiers for purifying large amounts of water.

[従来技術] 従来より水中の鉄鎖や浮遊物を除去するための浄水器と
しては、代表的には限外濾過フィルターを使用したもの
が知られているが、フィルターの目詰まりが生じやすか
った。また、このような浄水器により除去できる微粒子
のサイズには限界があり、かつ金属イオンを除去するこ
とはできなかった。
[Prior Art] Conventionally, water purifiers that use ultrafiltration filters are typically known as water purifiers for removing iron chains and suspended matter in water, but the filters tend to become clogged. Furthermore, there is a limit to the size of fine particles that can be removed by such water purifiers, and metal ions cannot be removed.

例えば沸騰水型原子力発電のタービンから回収される回
収水には、約15 ppb程度の鉄イオンや微細なコロ
イド状物等の不純物が含まれているが、これをそのまま
回収し原子炉に復水循環させると、前記不純物が炉中で
凝集付着し、発電効率の低下を招くため、これら不純物
の量が少なくとも0.5 ppb程度以下になるように
浄化して復水させる必要がある。
For example, recovered water recovered from boiling water nuclear power generation turbines contains about 15 ppb of impurities such as iron ions and fine colloids, but this is collected as is and recycled as condensate to the reactor. If this occurs, the impurities will coagulate and adhere in the furnace, leading to a decrease in power generation efficiency. Therefore, it is necessary to purify and condense the impurities so that the amount of these impurities is at least about 0.5 ppb or less.

上記のように、回収、水中に含まれる不純物である極く
微細なコロイド状物や、金属イオン等を高い効率で除去
することが必要な場合には、一般の水処理分野では、逆
浸透膜を使用した浄水装置が好適に使用されている。し
かしながら、逆浸透膜装置の場合には、濾過に要する圧
力が非常に高くなりやすく、したがって装置を大型なも
のにする必要があり、原子力発電回収水の処理等クロー
ズドシステムにすることが必要な系での濾過モジュール
としては不向きであった。
As mentioned above, in the general water treatment field, reverse osmosis membranes are used when it is necessary to recover and remove with high efficiency impurities such as extremely fine colloidal substances and metal ions contained in water. Water purification devices using water purifiers are preferably used. However, in the case of reverse osmosis membrane equipment, the pressure required for filtration tends to be very high, so the equipment needs to be large, and systems that need to be closed systems, such as the treatment of water recovered from nuclear power generation, are required. It was unsuitable for use as a filtration module.

一方、多孔質中空糸濾過膜は、優れた浄水機能を有して
いるが、中空糸濾過モジュールを大型化するにつれて、
固定部材内の中空糸濾過膜の分布の均一化を図ることが
困難であることや、あるいは微細なコロイド状物や金属
イオン等を比較的多量に含む水を大量に濾過処理する必
要がある分野に適用した場合、濾過膜の目詰まりが起り
やすく、またこの目詰まりを解消させ機能回復させるこ
とが難しいという問題から、従来あまり使用されていな
かったのが現状である。更に、原子力発電循環水の処理
の場合には、機能面からだけではなく、経済性、維持管
理、廃棄物処理の面から実用的な濾過装置が開発されて
いないのが現状である。
On the other hand, porous hollow fiber filtration membranes have excellent water purification functions, but as hollow fiber filtration modules become larger,
Fields where it is difficult to achieve uniform distribution of hollow fiber filtration membranes within the fixed member, or where it is necessary to filter a large amount of water that contains relatively large amounts of fine colloidal substances, metal ions, etc. When applied to filtration membranes, clogging of the filtration membrane is likely to occur, and it is difficult to eliminate the clogging and restore functionality, so it has not been used much in the past. Furthermore, in the case of treating nuclear power generation circulating water, no practical filtration device has been developed not only from a functional standpoint, but also from the economical, maintenance and management, and waste disposal standpoints.

[発明の目的コ 本発明の目的は、固定部材内の中空糸濾過膜の分布が均
一な比較的大型の中空糸濾過モジュールを提供すること
にある。
[Object of the Invention] An object of the present invention is to provide a relatively large-sized hollow fiber filtration module in which the distribution of hollow fiber filtration membranes within a fixed member is uniform.

本発明の他の目的は、金属イオンや極く微細なコロイド
状物を比較的多量に含む水を大量に処理するのに好適な
浄水器用の中空糸濾過モジュールを提供するこ、とにあ
る。
Another object of the present invention is to provide a hollow fiber filtration module for a water purifier that is suitable for treating a large amount of water containing relatively large amounts of metal ions and extremely fine colloidal substances.

本発明のもう一つの目的は、浄化装置に設置したまま濾
過機能回復のための洗浄操作を容易に実施することので
きる中空糸濾過モジュールを提供することにある。
Another object of the present invention is to provide a hollow fiber filtration module that can easily perform a cleaning operation to restore filtration function while being installed in a purification device.

[発明の構成コ すなわち、本発明の中空糸濾過モジュールは、環状部材
と、前記環状部材の内面に固着され、多数の中空糸濾過
膜をそれぞれの開口端を開口状態を保ったままU字型に
集束固定した固定部材とを具備する中空糸濾過モジュー
ルに於いて、前記固定部材内の一部に、該固定部材内の
中空糸濾過膜の分布を均一化するためのスペーサーが内
蔵されていることを特徴とする。
[Configuration of the Invention In other words, the hollow fiber filtration module of the present invention includes an annular member and a plurality of hollow fiber filtration membranes fixed to the inner surface of the annular member in a U-shape with each open end kept open. In a hollow fiber filtration module equipped with a fixing member that is focused and fixed to the fixing member, a spacer is built into a part of the fixing member to equalize the distribution of the hollow fiber filtration membrane in the fixing member. It is characterized by

[発明を実施するための好適な態様] 以下1本発明の中空糸濾過モジュールにつき図面を参照
しつつより詳細に説明する。
[PREFERRED EMBODIMENTS FOR CARRYING OUT THE INVENTION] Hereinafter, one hollow fiber filtration module of the present invention will be described in more detail with reference to the drawings.

第1図は、本発明の中空糸濾過モジュールの一態様例を
示す模式図であり、第1a図はその斜視図(中空糸濾過
膜の図示は省略されている)、第1b図は、A−A線で
の切断断面図、第1c図は、B−B線での切断面部分拡
大図である。第2図は、他の一態様例を示す模式斜視図
である。
FIG. 1 is a schematic diagram showing an example of an embodiment of the hollow fiber filtration module of the present invention, FIG. 1a is a perspective view thereof (illustration of the hollow fiber filtration membrane is omitted), and FIG. 1b is a 1c is a partially enlarged view of the cross section taken along line B-B. FIG. 2 is a schematic perspective view showing another embodiment.

本発明の中空糸濾過モジュールは、基本的には環状部材
lと、固定部材2と、中空糸濾過v3と、スペーサー4
とから構成され、所望により支持部材5、中空糸サポー
ト部材6等が付設されてもよい。
The hollow fiber filtration module of the present invention basically includes an annular member l, a fixing member 2, a hollow fiber filtration v3, and a spacer 4.
A support member 5, a hollow fiber support member 6, etc. may be attached as desired.

環状部材lは、浄水器内に中空糸濾過モジュールを設置
するに際して該モジュール全体を支持するための支持部
材として機能するものであり、代表的にはリング状の形
状を有するが、矩形等の断面形状のものでもよい。また
その外周面の形状に関しては、浄水器中の該モジュール
の設置態様に合わせて種々の形状をとり得る。この環状
部材1の内面には、中空糸濾過膜3を固定し、かつこれ
を濾過膜として機能させるために浄化すべき水と浄化さ
れた水との仕切り部材として機能する固定部材2が接合
される。固定部材2には、多数の中空糸濾過膜3がそれ
ぞれの開口端を開口状態を保ったままU字型に集束して
固定されている。固定部材2は、ポリウレタン、エポキ
シ樹脂、シリコン樹脂、不飽和、ポリエステル樹脂等に
より構成されるのが一般的である。
The annular member l functions as a support member for supporting the entire hollow fiber filtration module when it is installed in a water purifier, and typically has a ring shape, but may have a cross section such as a rectangle. It may be of any shape. Further, the shape of the outer peripheral surface thereof can take various shapes depending on the manner in which the module is installed in the water purifier. A fixing member 2 is bonded to the inner surface of the annular member 1, which serves as a partition member between water to be purified and purified water in order to fix the hollow fiber filtration membrane 3 and make it function as a filtration membrane. Ru. A large number of hollow fiber filtration membranes 3 are fixed to the fixing member 2 in a U-shaped bundle with each open end kept open. The fixing member 2 is generally made of polyurethane, epoxy resin, silicone resin, unsaturated resin, polyester resin, or the like.

中空糸濾過モジュールが大型化したり、固定部材2内の
中空糸濾過膜の設置密度が高くなると、固定部材2内の
中空糸濾過膜を均一に分布させることが難しくなり、中
空糸濾過膜間の全ての間隙に固定部材が充填された形態
をとらせることが困難となる。中空糸濾過膜同士が固定
部材を介在することなく接触固定された部分については
、微細な処理用水流路が形成されることになり、このた
め、固定部材2が仕切り部材としての完全な機能を果せ
なくなる。
As the hollow fiber filtration module becomes larger or the installation density of the hollow fiber filtration membranes in the fixing member 2 increases, it becomes difficult to uniformly distribute the hollow fiber filtration membranes in the fixing member 2, and the gap between the hollow fiber filtration membranes increases. It becomes difficult to fill all the gaps with the fixing member. In the part where the hollow fiber filtration membranes are fixed in contact with each other without intervening a fixing member, a fine treatment water flow path is formed, and therefore, the fixing member 2 does not fully function as a partition member. I can't accomplish it.

また、固定部材2の部分で間隙が小さく配置された中空
糸濾過膜同士は、固定されていない部分、すなわち水を
通す機能を果す部分での間隙も小さくなる。この結果、
第一に、このような間隙が小さい部分では水が流れると
きに所謂流動抵抗が大きくなり、同じ流量の水を流す場
合にはそれだけ圧力損失が大きくなる。第二に、機能回
復操作として通常利用される逆洗時に、空気等のガス体
を中空糸の外側から供給して振盪させるような逆洗方法
を用いる場合には、このような間隙の小さい部分にはガ
ス体が流れにくく、それだけ振盪効果が減少する。この
ように固定部材2内での中空・糸の分散が悪い場合には
、中空系濾過膜およびモジュールの1能性にも悪影響を
及ぼす。
Moreover, the hollow fiber filtration membranes arranged so that the gap is small in the part of the fixing member 2 also have a small gap in the part that is not fixed, that is, the part that functions to pass water. As a result,
First, in areas where the gap is small, so-called flow resistance increases when water flows, and pressure loss increases accordingly when the same flow rate of water flows. Second, when backwashing, which is normally used as a function recovery operation, uses a backwashing method in which a gas such as air is supplied from the outside of the hollow fibers and shaken, it is necessary to , it is difficult for the gas to flow, and the shaking effect is reduced accordingly. In this way, if the hollow fibers and fibers are poorly dispersed within the fixing member 2, it will also have a negative effect on the performance of the hollow filter membrane and the module.

本発明の中空糸濾過モジュールに於けるスペーサー4と
は、上記のような事態が生ずることのないよう、固定部
材内の一部に内蔵され、固定部材内で中空糸濾過膜同志
を隔離し、これらが直接接触する機会を減少させ、中空
糸濾過膜の分布を均一化させる機能を果す部材である。
The spacer 4 in the hollow fiber filtration module of the present invention is built in a part of the fixing member to prevent the above situation from occurring, and isolates the hollow fiber filtration membranes from each other within the fixing member. This is a member that functions to reduce the chance of direct contact between these and to equalize the distribution of the hollow fiber filtration membrane.

このようなスペーサー4は、例えば極く薄く幅の狭いフ
ィルムや細繊度の糸条あるいはこれらを用いて製造され
たメツシュ等から構成される。
Such a spacer 4 is composed of, for example, an extremely thin and narrow film, a fine yarn, or a mesh made using these.

このようなスペーサー4を固定部材2内の一部に内蔵さ
せる方法としては、例えば次のような方法が採用できる
。フィルムや糸条をスペーサー4に用いる一例としては
、所定の長さの中空糸濾過膜を開繊して多数平行に並べ
、その一端または両端に、フィルムまたは糸条を、中空
糸濾過膜の上側または下側に中空糸濾過膜に対して直交
するよう配置し、所望によりこれを粘着剤等を使用して
仮り固定した後、海苔巻きを巻くときのようにして多数
差べられた中空糸濾過膜を巻き取ることにより、固定部
材2内の一部に固定される部位゛の中空糸濾過膜間にフ
ィルムや糸条をスペーサー4として配設させることがで
きる。この後、このようにして作成した中空糸濾過膜の
束をU字状に折り曲げることによってU字型に集束され
た中空糸濾過膜が形成される。中空系濾過膜の巻き取り
に先立ち、中空糸濾過膜の束の折り曲げを実施してもよ
い。
As a method for incorporating such a spacer 4 into a part of the fixing member 2, the following method can be adopted, for example. As an example of using a film or thread as the spacer 4, a large number of hollow fiber filtration membranes of a predetermined length are opened and arranged in parallel, and a film or thread is placed on one or both ends of the hollow fiber filtration membrane above the hollow fiber filtration membrane. Alternatively, the hollow fiber filtration membrane can be placed perpendicular to the hollow fiber filtration membrane on the lower side, temporarily fixed using an adhesive, etc. if desired, and then a large number of hollow fiber filtration membranes are inserted in the same manner as when wrapping a seaweed roll. By winding up the membrane, it is possible to arrange a film or thread as a spacer 4 between the hollow fiber filtration membranes at a portion fixed to a part of the fixing member 2. Thereafter, the bundle of hollow fiber filtration membranes thus created is bent into a U-shape to form a U-shaped bundle of hollow fiber filtration membranes. Prior to winding up the hollow fiber filtration membrane, the bundle of hollow fiber filtration membranes may be bent.

スペーサー4を固定部材2内に内蔵させる他の方法とし
ては、予め、中空糸濾過膜の束をU字型に緩く集束した
ものに対して、糸条やフィルムを集束端から中空糸濾過
膜が固定部材内に固定される部位まで多数挿入する方法
も挙げられる。また、非常に手間のかかる方法ではある
が、細繊度の糸条からなる中空糸濾過膜の繊度に応じた
網目を有するメツシュに対して、その網目のなかに中空
糸濾過膜をU字状にしつつ挿入することによって、この
メツシュをスペーサーとすることもできる。
Another method of incorporating the spacer 4 into the fixing member 2 is to loosely bundle a bundle of hollow fiber filtration membranes in a U-shape in advance, and then insert the yarn or film from the bundled end into the hollow fiber filtration membrane. Another example is a method of inserting a large number of parts into the fixing member up to the part to be fixed. In addition, although it is a very time-consuming method, it is possible to create a U-shaped hollow fiber filtration membrane in a mesh that has a mesh that corresponds to the fineness of the hollow fiber filtration membrane, which is made of fine fibers. This mesh can also be used as a spacer by inserting the mesh into a spacer.

このようにして、スペーサー4を中空糸濾過膜3の束の
中に配設したものを環状部材1内に挿入し、公知の遠心
法等を利用して固定部材2を環状部材1内で固化させ、
中空糸濾過膜3を固定することにより、本発明の中空糸
濾過モジュールが形成される。
In this way, the spacer 4 arranged in the bundle of hollow fiber filtration membranes 3 is inserted into the annular member 1, and the fixing member 2 is solidified within the annular member 1 using a known centrifugation method or the like. let me,
By fixing the hollow fiber filtration membrane 3, the hollow fiber filtration module of the present invention is formed.

スペーサー4は、固定部材3内では固定部材3の厚さ方
向の中空糸濾過膜開口端の反対側の端部に内蔵されるの
が好ましい、スペーサー4が固定部材3の中央部や中空
糸濾過膜開口端に配設された場合には、スペーサー4と
中空糸濾過膜が直接接触して固定部材3がその間に入り
にくくなったり、固定部材3によって埋設されていない
中空糸濾過膜の実際に濾過機能を果す部分の分散性が悪
くなり、スペーサー4の設置効果が小さくなる。
It is preferable that the spacer 4 is built into the fixed member 3 at the end opposite to the opening end of the hollow fiber filtration membrane in the thickness direction of the fixed member 3. If the spacer 4 and the hollow fiber filtration membrane are placed at the open end of the membrane, the spacer 4 and the hollow fiber filtration membrane may come into direct contact, making it difficult for the fixing member 3 to enter between them, or the hollow fiber filtration membrane that is not buried by the fixing member 3 may actually be damaged. The dispersibility of the portion that performs the filtering function is poor, and the effect of installing the spacer 4 is reduced.

フィルムや糸条としてのスペーサー4の厚みは、少なく
とも中空糸濾過膜3−木の直径よりも小さいことが望ま
しい。これよりも厚みの厚いものを使用した場合には、
中空系濾過膜3の分散性を良好に保つことは可能である
が、中空糸濾過膜3の設置密度が粗くなり過ぎるため、
モジュールのコンパクト化の要請に反し実用的でない、
スペーサー4の固定部材2の厚み方向の幅は、固定部材
2の全長の 1/3程度以下でよく、固定部材2の固定
並びに仕切りの機能を十分に働かせるには1/10程度
以下であることが特に好ましい。
The thickness of the spacer 4 as a film or thread is desirably smaller than at least the diameter of the hollow fiber filtration membrane 3 - wood. If you use something thicker than this,
Although it is possible to maintain good dispersibility of the hollow fiber filtration membrane 3, the installation density of the hollow fiber filtration membrane 3 becomes too coarse.
It is impractical as it goes against the demand for compact modules.
The width in the thickness direction of the fixing member 2 of the spacer 4 should be about 1/3 or less of the total length of the fixing member 2, and should be about 1/10 or less in order for the fixing member 2 to function sufficiently as a fixing member and as a partition. is particularly preferred.

本発明の中空糸濾過モジュールに於いては、第1図に示
されるよう、U字型に集束されている中空糸濾過膜3の
外側を、中空糸濾過膜3のU字方向に伸びるように、環
状部材lに支持部材5が接合され、この支持部材5の先
端若しくは途中に、中空糸濾過膜3のU字状部の中央を
通過しく第1b図参照)、中空糸濾過膜3を常時そのま
まのU字型を保って保持するための中空糸サポート部材
6が接合されてもよい。
In the hollow fiber filtration module of the present invention, as shown in FIG. , a support member 5 is joined to the annular member l, and the hollow fiber filtration membrane 3 is constantly connected by passing through the center of the U-shaped portion of the hollow fiber filtration membrane 3 at the tip or midway of the support member 5 (see FIG. 1b). A hollow fiber support member 6 may be joined to maintain the U-shape as it is.

第1図の例では、支持部材5は、二本の支柱の形でそれ
ぞれがほぼ平行を保って設置されているが、第2図では
、支持部材5が環状部材1とほぼ同じ内径を有する、開
ロアの設けられた円筒状の部材として構成され、中空糸
濾過膜3のU字形酸部を覆い包むように設置されている
。円筒状の支持部材5は、中空糸濾過モジュールが製造
されてから実際に使用されるまでの間の貯蔵あるいは輸
送時に、中空糸濾過膜3が損傷されないよう保護してい
る。
In the example shown in FIG. 1, the support member 5 is installed in the form of two pillars that are substantially parallel to each other, but in FIG. , is configured as a cylindrical member with an open lower part, and is installed so as to cover the U-shaped acid part of the hollow fiber filtration membrane 3. The cylindrical support member 5 protects the hollow fiber filtration membrane 3 from being damaged during storage or transportation from the time the hollow fiber filtration module is manufactured until it is actually used.

第1図の中空糸サポート部材6は、濾過実施時に水流、
により中空糸濾過膜3が浮き上がったり、気泡再生処理
時に中空糸濾過膜3のU字型集束形状が乱れ、中空糸濾
過膜3同士にからみおいが生じ、その後の濾過実施時の
水流に対して大きな濾過抵抗を呈したり、極端な場合に
は、このからみあいにより中空糸濾過膜3の一部が損傷
され、もはや濾過膜として機能できないような事態が発
生することを防止する役割を果す、また、中空糸濾過膜
3のU字型集束形状が保たれるため、中空糸濾過膜3に
対して気泡をより均一に当てることができ、上記気泡処
理法による中空糸濾過膜3の機能回復処理をより順調に
実施することを可能にする。更にこの中空糸サポート部
材6は、上記に加え過度に中空糸濾過膜3が屈曲疲労を
受け、早期に劣化が生じるのを防止する役目も果す。し
たがって、このような中空糸サポート部材6を付設する
ことは本発明のより好ましい態様である。
The hollow fiber support member 6 in FIG.
This may cause the hollow fiber filtration membrane 3 to float up, or the U-shaped condensed shape of the hollow fiber filtration membrane 3 may be disturbed during the bubble regeneration process, causing entanglement between the hollow fiber filtration membranes 3, which may cause damage to the water flow during subsequent filtration. It serves to prevent a situation in which a large filtration resistance is exhibited or, in extreme cases, a part of the hollow fiber filtration membrane 3 is damaged due to this entanglement and can no longer function as a filtration membrane. Since the U-shaped bundled shape of the hollow fiber filtration membrane 3 is maintained, air bubbles can be more uniformly applied to the hollow fiber filtration membrane 3, and the function recovery treatment of the hollow fiber filtration membrane 3 by the above-mentioned bubble treatment method can be performed. Enables smoother implementation. Furthermore, in addition to the above, the hollow fiber support member 6 also serves to prevent the hollow fiber filtration membrane 3 from being subjected to excessive bending fatigue and causing early deterioration. Therefore, adding such a hollow fiber support member 6 is a more preferable embodiment of the present invention.

第2図の、円筒状支持部材5上に設けられた開ロアは、
気泡再生処理時に気泡を中空糸濾過モジュールの外部へ
排出する役割を果す。この開ロアをより大きなものとし
て配設すれば、浄化処理時あるいは気泡再生処理時に中
空糸濾過膜3の移動自由度を増加させ、中空糸濾過膜3
と浄化すべき水との接触効率を高めることもできる。
The open lower portion provided on the cylindrical support member 5 in FIG.
It plays the role of discharging air bubbles to the outside of the hollow fiber filtration module during the air bubble regeneration process. If this open lower is provided as a larger one, the degree of freedom of movement of the hollow fiber filtration membrane 3 is increased during purification processing or bubble regeneration processing, and the hollow fiber filtration membrane 3
It is also possible to increase the efficiency of contact between the water and the water to be purified.

本発明の中空糸濾過モジュールを構成する部材としての
環状部材および所望により付設される支持部材、中空糸
サポート部材等は、いずれも焼却により有害ガスを出さ
ずに完全燃焼させることのできる炭化水素系の樹脂から
なるものであることが好ましい。また、中空糸濾過膜3
としては、種々のものが使用でき、例えばセルロース系
、ポリオレフィン系、ポリスルホン系、ポリビニルアル
コール系、PMMA系等の各種材料からなる中空糸濾過
膜が使用できる。しかし耐久性ら、優れ、かつ濾過性能
に優れたものとしては、ポリオレフィン系の多孔質中空
糸膜が挙げられる。その中でも、微細なコロイド状物を
濾過するのに好適であり、濾過膜の目詰まりに対する機
能回復操作として通常用いられる逆洗時にかかる外力に
対して耐えられるような膜が特に好ましく用いられ、こ
のような中空糸膜の例としては、例えばポリエチレン中
空糸膜(ポリエチレン中空糸EHF、商品名、三菱レイ
ヨン■製)が挙げられる。
The annular member as a member constituting the hollow fiber filtration module of the present invention, the support member attached as desired, the hollow fiber support member, etc. are all hydrocarbon-based materials that can be completely combusted by incineration without emitting harmful gases. It is preferable that the material is made of resin. In addition, hollow fiber filtration membrane 3
Various materials can be used as the filter, such as hollow fiber filtration membranes made of various materials such as cellulose, polyolefin, polysulfone, polyvinyl alcohol, and PMMA. However, polyolefin porous hollow fiber membranes have excellent durability and filtration performance. Among these, membranes that are suitable for filtering fine colloidal substances and that can withstand external forces applied during backwashing, which is usually used as a function recovery operation for clogging of filtration membranes, are particularly preferred. Examples of such hollow fiber membranes include polyethylene hollow fiber membranes (polyethylene hollow fiber EHF, trade name, manufactured by Mitsubishi Rayon ■).

[本発明の効果] このように、固定部材内にスペーサーを内蔵させてなる
本発明の中空糸濾過モジュールによれば、固定部材内の
中空糸濾過膜を均一に分布させたものを形成することが
できる。したがって、モジュールが大型化しても固定部
材を中空糸濾過膜間の全ての間隙に充填させることがで
き、固定部材を仕切り部材としての完全な機能を果せる
ことができ、中空糸濾過モジュールの不良品発生率を低
く押さえることが可能となった。
[Effects of the present invention] As described above, according to the hollow fiber filtration module of the present invention in which the spacer is built into the fixing member, it is possible to form a hollow fiber filtration module in which the hollow fiber filtration membranes in the fixing member are uniformly distributed. I can do it. Therefore, even if the module becomes larger, the fixing member can be filled into all the gaps between the hollow fiber filtration membranes, and the fixing member can fully function as a partition member. It has become possible to keep the incidence low.

また、本発明の中空糸濾過モジュールは、固定部材内に
中空糸濾過膜が均一に分布しているので、U字型集束部
の分布も均一になるため、中空糸濾過膜が極度に密集し
た部分が少なくなり、中空糸濾過膜集合体の中央に位置
する中空糸濾過膜まで水が流れやすくなり、結果として
集合体全体の中空糸濾過膜の利用効率が高くなる。更に
、気泡による中空糸濾過モジュールの再生処理時に、気
泡が中空糸濾過膜の束に平均的に当てることができ、気
泡処理法により浄化装置に設置したまま濾過膜の機能回
復処理が順調に実施できる。したがって、長期に亘り中
空糸濾過膜の束の全体が濾過膜として機能でき、工業的
な規模での浄水器用の中空糸濾過モジュールとして優れ
た性能を発揮することが可能である。。
In addition, in the hollow fiber filtration module of the present invention, since the hollow fiber filtration membranes are uniformly distributed within the fixed member, the distribution of the U-shaped convergence part is also uniform, so that the hollow fiber filtration membranes are extremely densely distributed. Since the number of hollow fiber filtration membranes is reduced, water can more easily flow to the hollow fiber filtration membrane located at the center of the hollow fiber filtration membrane assembly, and as a result, the utilization efficiency of the hollow fiber filtration membranes in the entire assembly is increased. Furthermore, during the regeneration process of the hollow fiber filtration module using air bubbles, the air bubbles can evenly hit the bundle of hollow fiber filtration membranes, and the function recovery process of the filtration membranes can be carried out smoothly while installed in the purification equipment using the air bubble treatment method. can. Therefore, the entire bundle of hollow fiber filtration membranes can function as a filtration membrane for a long period of time, and it is possible to exhibit excellent performance as a hollow fiber filtration module for a water purifier on an industrial scale. .

【図面の簡単な説明】[Brief explanation of drawings]

第1図は、本発明の中空糸濾過モジュールの一態様を示
す模式図であり、第1a図はその斜視図(中空糸濾過膜
の図示は省略されている)、第1b図は、A−A線断面
図、第1C図は、B−B線での切断面部分拡大図である
。第2図は、他の態様例を示す模式断面図であるが、こ
の図に於いても中空糸濾過膜の図示は省略されている。 1:環状部材 2:固定部材 3:中空糸濾過膜 4;スペーサー 5:支持部材 6:中空糸サポート部材7:開口 8ニ
スペーサ−装着部 特−許 出 願 人 三菱レイヨン株式会社1i la
 図 第1b図 1i1c図 第2t!I
FIG. 1 is a schematic diagram showing one embodiment of the hollow fiber filtration module of the present invention, FIG. 1a is a perspective view thereof (illustration of the hollow fiber filtration membrane is omitted), and FIG. The sectional view taken along the line A and FIG. 1C are partially enlarged views taken along the line BB. FIG. 2 is a schematic sectional view showing another embodiment, but illustration of the hollow fiber filtration membrane is omitted in this figure as well. 1: Annular member 2: Fixing member 3: Hollow fiber filtration membrane 4; Spacer 5: Support member 6: Hollow fiber support member 7: Opening 8 Ni spacer - attachment part Patent Applicant: Mitsubishi Rayon Co., Ltd. 1i la
Figure 1b Figure 1i1c Figure 2t! I

Claims (1)

【特許請求の範囲】 l)環状部材と、前記環状部材の内面に固着され、多数
の中空糸濾過膜をそれぞれの開口端を開口状態を保った
ままU字型に集束固定した固定部材とを具備する中空糸
濾過モジュールに於いて、前記固定部材内の一部に、該
固定部材内の中空糸濾過膜の分布を均一化するためのス
ペーサーが内蔵されていることを特徴とする中空糸濾過
モジュール。 2)前記スペーサーがフィルムおよび/または糸条から
構成される特許請求の範囲第1項記載の中空糸濾過モジ
ュール。
[Scope of Claims] l) An annular member and a fixing member that is fixed to the inner surface of the annular member and that collects and fixes a large number of hollow fiber filtration membranes in a U-shape while keeping their respective open ends open. The hollow fiber filtration module is characterized in that a spacer is built into a part of the fixing member for uniformizing the distribution of the hollow fiber filtration membranes in the fixing member. module. 2) The hollow fiber filtration module according to claim 1, wherein the spacer is composed of a film and/or a thread.
JP9863384A 1984-05-18 1984-05-18 Hollow yarn filter module Pending JPS60244304A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9863384A JPS60244304A (en) 1984-05-18 1984-05-18 Hollow yarn filter module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9863384A JPS60244304A (en) 1984-05-18 1984-05-18 Hollow yarn filter module

Publications (1)

Publication Number Publication Date
JPS60244304A true JPS60244304A (en) 1985-12-04

Family

ID=14224906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9863384A Pending JPS60244304A (en) 1984-05-18 1984-05-18 Hollow yarn filter module

Country Status (1)

Country Link
JP (1) JPS60244304A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62144712A (en) * 1985-12-20 1987-06-27 Nippon Atom Ind Group Co Ltd Hollow yarn membrane filter
JPS63123405A (en) * 1986-10-28 1988-05-27 ドレーゲルヴエルク・アクチエンゲゼルシヤフト Manufacture of hollow fiber substance exchange module
WO2008093654A1 (en) 2007-01-30 2008-08-07 Toray Industries, Inc. Hollow-fiber membrane and hollow-fiber-membrane module having the same included therein

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62144712A (en) * 1985-12-20 1987-06-27 Nippon Atom Ind Group Co Ltd Hollow yarn membrane filter
JPS63123405A (en) * 1986-10-28 1988-05-27 ドレーゲルヴエルク・アクチエンゲゼルシヤフト Manufacture of hollow fiber substance exchange module
JPH0318925B2 (en) * 1986-10-28 1991-03-13 Draegerwerk Ag
WO2008093654A1 (en) 2007-01-30 2008-08-07 Toray Industries, Inc. Hollow-fiber membrane and hollow-fiber-membrane module having the same included therein

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