JPH0655039A - Hollow fiber membrane module - Google Patents
Hollow fiber membrane moduleInfo
- Publication number
- JPH0655039A JPH0655039A JP4209006A JP20900692A JPH0655039A JP H0655039 A JPH0655039 A JP H0655039A JP 4209006 A JP4209006 A JP 4209006A JP 20900692 A JP20900692 A JP 20900692A JP H0655039 A JPH0655039 A JP H0655039A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- membrane module
- potting
- cylindrical case
- 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 56
- 239000012510 hollow fiber Substances 0.000 title claims abstract description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000004382 potting Methods 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 6
- 239000008213 purified water Substances 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000010008 shearing Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000009661 fatigue test Methods 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 229920000297 Rayon Polymers 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- -1 for example Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920005749 polyurethane resin Polymers 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920006305 unsaturated polyester Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
- B01D63/021—Manufacturing thereof
- B01D63/022—Encapsulating hollow fibres
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、主として水道水等水圧
が比較的高圧の原水供給栓に直接取付けて用いられ、浄
水時に高圧力が加わるような浄水器に組み込んで用いら
れる中空糸膜モジュールに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a hollow fiber membrane module mainly used by being directly attached to a raw water supply tap having a relatively high water pressure such as tap water and used by being incorporated in a water purifier to which high pressure is applied during water purification. Regarding
【０００２】[0002]
【従来の技術】近年、中空糸膜等の微細孔を有した濾過
膜を用いたフィルターによって、原水中の微細な塵や雑
菌が除去できることから、このフィルターを使用した浄
水器が注目を浴び水道水等の浄化に広く用いられつつあ
る。2. Description of the Related Art In recent years, since a filter using a filtration membrane having fine pores such as a hollow fiber membrane can remove fine dust and bacteria in raw water, a water purifier using this filter has attracted attention. It is being widely used to purify water.
【０００３】このようなフィルターは、中空糸膜をＵ字
状に集束し、該集束端部を中空糸膜の開口端を閉塞させ
ないようにしてポリウレタン樹脂等のポッティング材に
よって固定することにより、中空糸膜の中空部を外表面
と機密に仕切るとともに筒状ケース本体に固定させてい
る。In such a filter, a hollow fiber membrane is bundled in a U-shape, and the bundled end is fixed by a potting material such as polyurethane resin so as not to block the open end of the hollow fiber membrane. The hollow part of the thread film is separated from the outer surface as a secret and is fixed to the tubular case body.
【０００４】[0004]
【本発明が解決しようとする課題】前述したようにポッ
ティング材層は、中空糸膜の中空部を外表面と機密に仕
切るとともに筒状ケース本体に固定する役割を有してい
るが、原水供給栓に直接取付けて用いられるために常時
水圧が加わっており、原水供給栓の急激な開閉等による
瞬間的な高圧が付与されたり、また、夏期等において
は、水温の上昇によりポッティング材に用いられる熱可
塑性樹脂が軟化し易くなり、上述した水圧との相乗作用
でポッティング層と筒状ケース本体との剥離が生じ、浄
水器としての性能を維持することができなくなることが
ある。As described above, the potting material layer has a function of partitioning the hollow portion of the hollow fiber membrane from the outer surface in a sealed manner and fixing it to the cylindrical case body. Since it is used by being directly attached to the tap, water pressure is constantly applied, and instantaneous high pressure is given by sudden opening and closing of the raw water supply tap, and in summer etc., it is used as a potting material due to the rise in water temperature. The thermoplastic resin tends to be softened, and the potting layer and the cylindrical case body are separated from each other due to the synergistic action with the above-mentioned water pressure, and the performance as a water purifier may not be maintained.
【０００５】このような問題点の解決策として、筒状ケ
ース本体のポッティング部の内壁面にアンカー効果を期
待した凹凸部やテーパ部を設けたり、あるいはポッティ
ング材の樹脂量を多くしてポッティング層を厚くするこ
とにより、ポッティング層の剥離防止をする試みがなさ
れている。As a solution to such a problem, a concavo-convex portion or a taper portion which is expected to have an anchor effect is provided on the inner wall surface of the potting portion of the tubular case body, or the potting layer is formed by increasing the resin amount of the potting material. Attempts have been made to prevent peeling of the potting layer by increasing the thickness.
【０００６】しかし、凹凸部を筒状ケース本体の内部に
設ける場合は、筒状ケース本体を射出成形で製作する際
の金型が複雑となり、金型代が高価になると共に成形サ
イクルが長くなり、コスト高となる。However, when the uneven portion is provided inside the cylindrical case main body, the mold for producing the cylindrical case main body by injection molding becomes complicated, the mold cost becomes expensive, and the molding cycle becomes long. , Costly.
【０００７】また、テーパ部を筒状ケース本体の内部に
設ける場合には、金型も簡単なためにコスト高となら
ず、それなりの効果が得られているが、原水供給栓の開
閉等による瞬間的な高圧が加わる場合等に生ずるポッテ
ィング層の剥離を完全に防止するには至っていない。Further, when the taper portion is provided inside the cylindrical case body, the cost is not increased because the die is simple, and a certain effect is obtained. However, due to the opening and closing of the raw water supply plug, etc. It has not been possible to completely prevent the peeling of the potting layer that occurs when an instantaneous high pressure is applied.
【０００８】またポッティング層を厚くした場合は、ポ
ッティング層自体の強度が増大し、剥離防止の効果は生
じるが、多量の樹脂を必要とし、コスト高になるばかり
でなく、使用する中空糸膜の有効膜面積が小さくなり、
濾過流量が小さくなるなど浄水器としての性能を低下さ
せる。When the potting layer is thickened, the strength of the potting layer itself increases, and the effect of preventing peeling occurs, but a large amount of resin is required, which not only increases the cost but also increases the cost of the hollow fiber membrane to be used. Effective membrane area becomes smaller,
It reduces the performance as a water purifier such as a smaller filtration flow rate.
【０００９】本発明はこのような問題を解決し、瞬間的
な高圧状態や夏場等の水温の上昇によっても剥離を生ず
ることがなく、有効膜面積をより効果的に使用し得る中
空糸膜モジュールを提供することを目的とするものであ
る。The present invention solves such a problem and does not cause peeling due to a momentary high-pressure condition or a rise in water temperature in the summer and the like, and the hollow fiber membrane module can effectively use the effective membrane area. It is intended to provide.
【００１０】[0010]
【課題を解決するための手段】本発明は、開口端を開口
状態に保ったまま端部をポッティング材で集束固定され
た多孔質中空糸束をケース内部に集束した全量濾過型中
空糸膜モジュールにおいて、ポッティング材による集束
固定部のケース内壁にテーパ部が設けられており、該テ
ーパ部は、テーパ部の延長線上にあって、且つ浄水の吐
出孔方向に最深部を有する溝状の切り込み部が全周にわ
たって設けられていると共に、下記（１）及び（２）式
の範囲からなる形状を有していることを特徴とする中空
糸膜モジュール ３≦ｈ ………（１） ５≦θ≦２０°………（２） （式中、ｈは、ポッティング部の筒状ケース内壁面と多
孔質中空糸膜の最外周部との距離（ｍｍ）を示し、θ
は、テーパ部の角度を示すものである。）をその要旨と
するものである。According to the present invention, a total volume filtration type hollow fiber membrane module in which a porous hollow fiber bundle whose end is focused and fixed by a potting material is focused inside a case while keeping the open end in an open state. In the above, a taper portion is provided on the inner wall of the case of the converging and fixing portion made of potting material, and the taper portion is a groove-like cut portion on the extension line of the taper portion and having the deepest portion in the direction of the purified water discharge hole. Is provided over the entire circumference and has a shape defined by the ranges of the following formulas (1) and (2): 3 ≦ h ... (1) 5 ≦ θ ≦ 20 ° (2) (where, h represents the distance (mm) between the inner wall surface of the cylindrical case of the potting portion and the outermost peripheral portion of the porous hollow fiber membrane, and θ
Indicates the angle of the tapered portion. ) Is the gist.
【００１１】本発明の中空糸膜モジュールは、中空糸膜
単独もしくは活性炭等の吸着材と組み合わせて水道等の
原水供給栓に接続して使用されるものである。The hollow fiber membrane module of the present invention is used by connecting the hollow fiber membrane alone or in combination with an adsorbent such as activated carbon to a raw water supply plug such as tap water.
【００１２】中空糸膜としては、一般に浄水器として用
いられているポリオレフィン系、ポリスルホン系、セル
ロース系等各種素材のものが使用できる。なかでも親水
化処理されたポリオレフィン系の多孔質中空糸膜であっ
て、一方の面から他方の面にかけて幾重にも積層したフ
ィブリルとフィブリルの両端を固定する節部によりでき
るフィブリル間の空間が相互につながっており、膜の一
方の面から他方の面にまで貫通しているような膜、例え
ば、ポリエチレン中空糸・ＥＨＦ（三菱レイヨン社製登
録商標名）を用いれば水道水中の雑菌除去能力も大きく
好ましい。As the hollow fiber membrane, various materials such as polyolefin type, polysulfone type and cellulose type which are generally used for water purifiers can be used. Among them, it is a polyolefin-based porous hollow fiber membrane that has been hydrophilized, and the space between the fibrils formed by stacking multiple layers from one side to the other side and the nodes that fix both ends of the fibrils are mutually And a membrane that penetrates from one side to the other side of the membrane, for example, polyethylene hollow fiber / EHF (registered trademark of Mitsubishi Rayon Co., Ltd.) is used to remove bacteria in tap water. Greatly preferred.
【００１３】また、ポッティング部に使用されるポッテ
ィング材としても、通常用いられているポリウレタン、
不飽和ポリエステル及びエポキシ等の樹脂がそのまま用
いられる。Further, as the potting material used for the potting portion, polyurethane which is usually used,
Resins such as unsaturated polyester and epoxy are used as they are.
【００１４】本発明の中空糸膜モジュールのように、中
空糸膜モジュールと筒状ケース本体とをポッティング材
にて固定する方法では、筒状ケース本体と中空糸膜最外
周部間距離が小さければ小さい程、距離間に固定するた
めのポッティング材が充分に行きわたらないため剥離が
生じ易くなる。In the method of fixing the hollow fiber membrane module and the tubular case body with the potting material like the hollow fiber membrane module of the present invention, if the distance between the tubular case body and the outermost peripheral portion of the hollow fiber membrane is small. The smaller the distance, the less easily the potting material for fixing between the distances reaches, and the more easily peeling occurs.
【００１５】そして筒状ケース本体と中空糸膜最外周部
間にポッティング材が固定するのに充分な厚みがあって
も、表面張力によって該ポッティング材は浄水の吐出方
向に対して凸とするＵ字形になる。このＵ字形の曲率半
径は、筒状ケース本体と中空糸膜の最外周部距離が、小
さければ小さい程大きく鋭角になる。この曲率半径の底
部には、水圧等の圧力による応力集中により亀裂が生じ
易くなり、また生じた亀裂が成長して剥離の原因とな
る。Even if the potting material has a sufficient thickness to be fixed between the tubular case body and the outermost peripheral portion of the hollow fiber membrane, the potting material is made convex by the surface tension in the discharge direction of the purified water due to the surface tension. It becomes a letter shape. This U-shaped radius of curvature becomes larger and sharper as the outermost peripheral distance between the tubular case body and the hollow fiber membrane is smaller. At the bottom of the radius of curvature, cracks are likely to occur due to stress concentration due to pressure such as water pressure, and the generated cracks grow and cause peeling.
【００１６】本発明においては、ポッティング部の筒状
ケース内壁面と中空糸膜最外周部間距離ｈ（ｍｍ）を、
３≦ｈとすることで応力集中を緩和し、亀裂の発生を生
じ難くしている。ここでｈが３ｍｍ未満だと応力集中が
顕著で亀裂が発生し易くなる。また、この距離ｈは、３
ｍｍ以上であれば応力集中は緩和され充分であるが、大
き過ぎるとむやみに樹脂を必要とし、コスト高になる。
１０ｍｍ程度であれば、応力緩和及びコスト面からみて
も充分であり好ましい。In the present invention, the distance h (mm) between the inner wall surface of the cylindrical case of the potting portion and the outermost peripheral portion of the hollow fiber membrane is
By setting 3 ≦ h, stress concentration is relaxed and cracks are less likely to occur. Here, when h is less than 3 mm, stress concentration is remarkable and cracks are likely to occur. Also, this distance h is 3
If the thickness is equal to or larger than mm, the stress concentration is relaxed and sufficient, but if it is too large, the resin is unnecessarily required and the cost becomes high.
If it is about 10 mm, it is preferable from the viewpoint of stress relaxation and cost.
【００１７】また本発明のような中空糸膜モジュール
は、原水供給栓に直接取付けて使用されるためにポッテ
ィング層には、常時給水時の圧力や原水濾過時に生じる
圧力又は原水供給栓の急激な開閉等による瞬間的な高圧
力等が加わっており、これらの圧力は、ポッティング層
と筒状ケース本体との界面に剪断力を及ぼし、ズレや剥
離を生じさせることがあり、浄水器としての性能を維持
することができなくなる。Further, since the hollow fiber membrane module according to the present invention is used by being directly attached to the raw water supply plug, the potting layer has a pressure during constant water supply, a pressure generated during raw water filtration, or a sudden supply of the raw water supply plug. Momentary high pressure is applied due to opening and closing, etc.These pressures may exert shearing force on the interface between the potting layer and the cylindrical case body, causing misalignment or peeling. Can no longer be maintained.
【００１８】本発明の中空糸膜モジュールにおいて、浄
水の吐出方向に最深部を有する溝状の切り込み部が、い
わゆるアンカー効果によって筒状ケース本体とポッティ
ング層のズレを防いでいる。また、延長線が切り込み部
内にあるテーパ部は、テーパ部角度θにより、剪断力を
筒状ケース本体テーパ部に水平方向に分力させることで
緩和し、且つ剪断力自身もテーパ延長線上の切り込み部
が受け持つことにより、剪断力によるズレや剥離を生じ
難くしている。In the hollow fiber membrane module of the present invention, the groove-shaped notch having the deepest portion in the direction of discharging purified water prevents the cylindrical case body and the potting layer from being displaced by the so-called anchor effect. Also, the taper part where the extension line is inside the cut part is relaxed by horizontally dividing the shearing force into the taper part of the cylindrical case body by the taper part angle θ, and the shearing force itself is also cut on the taper extension line. Since the part is in charge, it is less likely that a shift or peeling due to shearing force will occur.
【００１９】このテーパ部角度θは、該筒状ケース内壁
面と中空糸膜最外周部間距離ｈ及びテーパ部の延長線上
が切り込み部内にあり、５≦θ≦２０°の角度とするこ
とが必要である。The taper angle θ may be 5 ≦ θ ≦ 20 °, since the distance h between the inner wall surface of the cylindrical case and the outermost peripheral portion of the hollow fiber membrane and the extension line of the taper are in the notch. is necessary.
【００２０】ここで該角度θが５°未満であると、剪断
力の分力による緩和が充分でなく、剪断力によるズレや
剥離が生じ易くなる。また該角度θが２０°を超えると
剪断力の分力による緩和は充分であるが、テーパ部の延
長線上が切り込み部内にあるという条件からはずれ、か
つテーパ部長さが充分に取れず緩和の効力は失われる。If the angle θ is less than 5 °, the shearing force is not sufficiently relaxed by the component force, and the shearing force is apt to cause displacement or peeling. Further, if the angle θ exceeds 20 °, the relaxation due to the component force of the shearing force is sufficient, but the condition that the extension line of the taper portion is within the cut portion is not satisfied, and the length of the taper portion cannot be sufficiently obtained, so that the relaxation effect is large. Is lost.
【００２１】[0021]
【実施例】以下本発明の実施態様を図面に基づき詳細に
説明する。Embodiments of the present invention will now be described in detail with reference to the drawings.
【００２２】図１は、本発明の中空糸膜モジュールを収
納した浄水器の一例を示した縦断面図であり、図２は、
図１における溝状の切り込み部及びテーパ部の部分拡大
断面図を示している。FIG. 1 is a vertical sectional view showing an example of a water purifier accommodating the hollow fiber membrane module of the present invention, and FIG.
FIG. 2 is a partially enlarged cross-sectional view of the groove-shaped cut portion and the tapered portion in FIG. 1.
【００２３】図１により本発明の中空糸膜モジュールの
構造を概説すると、浄水器の外容器８に収納されている
中空糸膜モジュールは、中空糸膜１をＵ字状に収束し、
収束端部を中空糸膜の開口端を閉塞させないようにして
ポリウレタン樹脂等のポッティング層２によって固定す
ることにより、中空糸膜１の中空部を外表面と機密に仕
切るとともに筒状ケース本体３に固定させている。この
筒状ケース本体３の内面のポッティング層２に相当する
部分に溝状の切り込み部４及びテーパ部５が設けられて
いる。この溝状の切り込み部４は、中空糸膜モジュール
の浄水吐出孔７の方向に最深部を有している。矢印は、
浄水時の水の流れ方向を示している。When the structure of the hollow fiber membrane module of the present invention is outlined with reference to FIG. 1, the hollow fiber membrane module housed in the outer container 8 of the water purifier converges the hollow fiber membranes 1 into a U-shape,
By fixing the converging end portion with the potting layer 2 such as polyurethane resin so as not to block the open end of the hollow fiber membrane, the hollow portion of the hollow fiber membrane 1 is separated from the outer surface in a sealed manner and the tubular case body 3 is secured. It is fixed. A groove-shaped cut portion 4 and a taper portion 5 are provided in a portion corresponding to the potting layer 2 on the inner surface of the cylindrical case body 3. The groove-shaped cut portion 4 has the deepest portion in the direction of the purified water discharge hole 7 of the hollow fiber membrane module. Arrow
The flow direction of water during water purification is shown.
【００２４】図１においては、中空糸膜モジュールとし
て、中空糸膜１と活性炭７とからなる濾過部を有したも
のを示しているが、中空糸膜１単独のモジュールであっ
ても差し支えない。In FIG. 1, the hollow fiber membrane module is shown as having a filtration portion consisting of the hollow fiber membrane 1 and the activated carbon 7, but the hollow fiber membrane 1 alone may be a module.
【００２５】（実施例１〜３、比較例１〜３）中空糸膜
モジュールを、浄水器として使用するための本体容器に
装着した状態で水温４０℃の温水に完全に水没させ、原
水流入口より動水圧７．５ｋｇ／ｃｍ2 の負荷及び無負
荷状態をそれぞれ１０秒サイクルを１サイクルとする疲
労試験を行なった。(Examples 1 to 3 and Comparative Examples 1 to 3) The hollow fiber membrane module was completely submerged in hot water having a water temperature of 40 ° C. in a state where the hollow fiber membrane module was mounted on a main body container for use as a water purifier, and the raw water inlet was provided. Then, a fatigue test was conducted under the condition of a dynamic water pressure of 7.5 kg / cm 2 and a non-loaded state, each cycle of 10 seconds.
【００２６】この疲労試験は、筒状ケース本体とポッテ
ィング層間にズレ及び剥離が生じ破水するまでを寿命と
し、そのサイクル数で評価を行う。表１に示す如く、ポ
ッティング部の筒状ケース内壁面と該多孔質中空糸膜の
再外周部との距離ｈ及び該テーパ部角度θを種々に変更
し疲労試験を行い、その寿命サイクルを併せて示す。This fatigue test is evaluated by the number of cycles, which is defined as the life until the water is broken due to the displacement and peeling between the cylindrical case body and the potting layer. As shown in Table 1, the distance h between the inner wall surface of the cylindrical case of the potting portion and the re-outer peripheral portion of the porous hollow fiber membrane and the taper angle θ were variously changed, and fatigue tests were conducted. Indicate.
【００２７】[0027]
【表１】 [Table 1]
【００２８】[0028]
【発明の効果】本発明の中空糸膜モジュールは、筒状ケ
ース内壁面と中空糸膜最外周部間距離を特定の範囲にす
ることで、筒状ケース本体と中空糸膜最外周部間にポッ
ティング層に生じる応力集中を緩和し、亀裂の発生を生
じ難くしている。また浄水の吐出方向に最深部を有する
溝状の切り込み部が、いわゆるアンカー効果によって筒
状ケース本体とポッティング層のズレを防いでいる。According to the hollow fiber membrane module of the present invention, the distance between the inner wall surface of the tubular case and the outermost peripheral portion of the hollow fiber membrane is set within a specific range so that the tubular case main body and the outermost peripheral portion of the hollow fiber membrane are provided. It reduces the stress concentration that occurs in the potting layer and makes it difficult for cracks to occur. Further, the groove-shaped notch having the deepest portion in the direction of discharging purified water prevents the cylindrical case body and the potting layer from being displaced by the so-called anchor effect.
【００２９】また延長線が該切り込み部内にあるテーパ
部は、まずテーパ部角度θにより、せん断力を筒状ケー
ス本体テーパ部に水平方向に分力させる事で緩和し、か
つせん断力自身もテーパ延長線上の該切り込み部が受け
持つことによっても、せん断力によるズレ及び剥離を生
じにくくしている。Further, the taper portion having the extension line in the cut portion is first relaxed by horizontally dividing the shearing force to the taper portion of the cylindrical case body by the taper portion angle θ, and the shearing force itself is also tapered. Even when the cut portion on the extension line takes charge of the extension, the shift and the peeling due to the shearing force are less likely to occur.
【００３０】これらの効果によって瞬間的な高圧状態や
夏場等水温の上昇によっても剥離を生ずることが極めて
少なくなり、中空糸膜モジュールとしての耐久性が大幅
に向上する。Due to these effects, peeling is extremely rarely caused even by an instantaneous high pressure condition or a rise in water temperature such as in summer, and the durability as a hollow fiber membrane module is significantly improved.
【図１】本発明の中空糸膜モジュールを収納した浄水器
の一例を示した縦断面図である。FIG. 1 is a vertical cross-sectional view showing an example of a water purifier accommodating a hollow fiber membrane module of the present invention.
【図２】図１における溝状の切り込み部及びテーパ部の
部分拡大断面図である。FIG. 2 is a partially enlarged cross-sectional view of a groove-shaped cut portion and a tapered portion in FIG.
１ 中空糸膜 ２ ポッティング層 ３ 筒状ケース本体 ４ 溝状の切り込み部 ５ テーパ部 ６ 浄水吐出孔 ７ 活性炭 ８ 外容器 1 Hollow Fiber Membrane 2 Potting Layer 3 Cylindrical Case Body 4 Groove-shaped Notch 5 Taper 6 Clean Water Discharge Hole 7 Activated Carbon 8 Outer Container
───────────────────────────────────────────────────── フロントページの続き (72)発明者 本城 賢治 愛知県名古屋市東区砂田橋四丁目１番60号 三菱レイヨン株式会社商品開発研究所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kenji Honjo 4-60 Sunadabashi, Higashi-ku, Nagoya, Aichi Prefecture Mitsubishi Rayon Co., Ltd. Product Development Laboratory
Claims (1)
ッティング材で集束固定された多孔質中空糸束を、ケー
ス内部に集束した全量濾過型中空糸膜モジュールにおい
て、ポッティング材による集束固定部のケース内壁にテ
ーパ部が設けられており、該テーパ部は、テーパ部の延
長線上にあって、且つ浄水の吐出孔方向に最深部を有す
る溝状の切り込み部が全周にわたって設けられていると
共に、下記（１）及び（２）式の範囲からなる形状を有
していることを特徴とする中空糸膜モジュール。 ３≦ｈ ………（１） ５≦θ≦２０°………（２） （式中、ｈは、ポッティング部の筒状ケース内壁面と多
孔質中空糸膜の最外周部との距離（ｍｍ）を示し、θ
は、テーパ部の角度を示すものである。）1. A dead end filtration type hollow fiber membrane module in which a porous hollow fiber bundle whose end portion is focused and fixed by a potting material while keeping the open end in an open state is converged and fixed by a potting material in a hollow fiber membrane module. A tapered portion is provided on the inner wall of the case of the portion, and the tapered portion is provided on the extension line of the tapered portion, and a groove-shaped cut portion having the deepest portion in the direction of the purified water discharge hole is provided over the entire circumference. In addition, the hollow fiber membrane module is characterized by having a shape defined by the following formulas (1) and (2). 3 ≦ h (1) 5 ≦ θ ≦ 20 ° (2) (where, h is the distance between the inner wall surface of the cylindrical case of the potting portion and the outermost peripheral portion of the porous hollow fiber membrane ( mm), θ
Indicates the angle of the tapered portion. )
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20900692A JP3293663B2 (en) | 1992-08-05 | 1992-08-05 | Hollow fiber membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20900692A JP3293663B2 (en) | 1992-08-05 | 1992-08-05 | Hollow fiber membrane module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0655039A true JPH0655039A (en) | 1994-03-01 |
| JP3293663B2 JP3293663B2 (en) | 2002-06-17 |
Family
ID=16565734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20900692A Expired - Fee Related JP3293663B2 (en) | 1992-08-05 | 1992-08-05 | Hollow fiber membrane module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3293663B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4851394A (en) * | 1986-12-30 | 1989-07-25 | Uni Colloid Kabushiki Kaisha | Glucomannan/polyhydric alcohol composition and film prepared therefrom |
| US5472601A (en) * | 1993-04-20 | 1995-12-05 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Hollow fiber filter |
| JP2000167362A (en) * | 1998-12-07 | 2000-06-20 | Toray Ind Inc | Hollow yarn membrane module |
| WO2013129227A1 (en) * | 2012-02-29 | 2013-09-06 | 三菱レイヨン株式会社 | Filtration device |
| US8728561B2 (en) | 2004-04-15 | 2014-05-20 | Living Cell Research Inc. | Edible film compositions for processing of meat products |
-
1992
- 1992-08-05 JP JP20900692A patent/JP3293663B2/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4851394A (en) * | 1986-12-30 | 1989-07-25 | Uni Colloid Kabushiki Kaisha | Glucomannan/polyhydric alcohol composition and film prepared therefrom |
| US5472601A (en) * | 1993-04-20 | 1995-12-05 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Hollow fiber filter |
| EP0706818A1 (en) * | 1993-04-20 | 1996-04-17 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Hollow fiber type filter |
| JP2000167362A (en) * | 1998-12-07 | 2000-06-20 | Toray Ind Inc | Hollow yarn membrane module |
| JP4686796B2 (en) * | 1998-12-07 | 2011-05-25 | 東レ株式会社 | Hollow fiber membrane module |
| US8728561B2 (en) | 2004-04-15 | 2014-05-20 | Living Cell Research Inc. | Edible film compositions for processing of meat products |
| WO2013129227A1 (en) * | 2012-02-29 | 2013-09-06 | 三菱レイヨン株式会社 | Filtration device |
| CN104144885A (en) * | 2012-02-29 | 2014-11-12 | 三菱丽阳株式会社 | Filtration device |
| JPWO2013129227A1 (en) * | 2012-02-29 | 2015-07-30 | 三菱レイヨン株式会社 | Filtration device |
| US10434473B2 (en) | 2012-02-29 | 2019-10-08 | Mitsubishi Chemical Corporation | Filtration device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3293663B2 (en) | 2002-06-17 |
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