JP3436026B2 - Hollow fiber membrane module - Google Patents
Hollow fiber membrane moduleInfo
- Publication number
- JP3436026B2 JP3436026B2 JP33631396A JP33631396A JP3436026B2 JP 3436026 B2 JP3436026 B2 JP 3436026B2 JP 33631396 A JP33631396 A JP 33631396A JP 33631396 A JP33631396 A JP 33631396A JP 3436026 B2 JP3436026 B2 JP 3436026B2
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- case
- membrane module
- air
- 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 - Fee Related
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、空気抜き手段を内
部に備えた中空糸膜モジュールに関し、濾過時の空気抜
き手段の挙動を安定させ、中空糸膜の保護や膜透過流量
の確保を達成する技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow fiber membrane module having an air venting means inside, and a technique for stabilizing the behavior of the air venting means during filtration, protecting the hollow fiber membranes, and securing a membrane permeation flow rate. Regarding
【０００２】[0002]
【従来の技術】従来より、例えば水道水の濾過処理を行
うために用いられる濾過装置において、中空糸膜モジュ
ールを利用して濾過対象となる水道水を中空糸膜の膜表
面を透過させて、濾過を行うものがある。2. Description of the Related Art Conventionally, for example, in a filtering device used for filtering tap water, a tap fiber to be filtered is passed through a membrane surface of a hollow fiber membrane by using a hollow fiber membrane module. Some filters.
【０００３】図５（ａ）は、このような濾過装置の内部
に装填される中空糸膜モジュール１０１の断面構成説明
図である。中空糸膜モジュール１０１は筒状のケース１
０２の内部にＵ字状に折り曲げた中空糸膜の糸束１０３
を装填し、中空糸膜１０３ａの各端面の開口を維持しつ
つ、中空糸膜の糸束１０３の端部１０３ｂとケース１０
２の一方の端部１０２ａ内周部との隙間を、ウレタン系
あるいはエポキシ系等の接着剤等により封止されたポッ
ティング部１０４（破線の部分）を備えている。FIG. 5 (a) is an explanatory view of a cross-sectional structure of a hollow fiber membrane module 101 loaded inside such a filtration device. The hollow fiber membrane module 101 is a cylindrical case 1
A bundle 103 of hollow fiber membranes bent in a U shape inside 02.
Of the hollow fiber membrane 103a while maintaining the openings of the respective end surfaces of the hollow fiber membrane 103a, and the end portion 103b of the yarn bundle 103 of the hollow fiber membrane and the case 10.
2 is provided with a potting portion 104 (broken line portion) in which a gap with the inner peripheral portion of the one end portion 102a is sealed with a urethane-based or epoxy-based adhesive or the like.
【０００４】そして、使用時にはケース１０２の開口１
０２ｂより流入する濾過対象流体（例えば水道水）が中
空糸膜１０３ａの膜表面から内管部へと透過し、ポッテ
ィング部１０４の端面１０４ａに現れる中空糸膜１０３
ａの端面から膜透過流体を流出する。When used, the opening 1 of the case 102 is used.
The filtration target fluid (for example, tap water) flowing in from 02b permeates from the membrane surface of the hollow fiber membrane 103a to the inner pipe portion, and appears on the end surface 104a of the potting portion 104.
The membrane-permeable fluid flows out from the end face of a.
【０００５】また、このような使用状態において、濾過
対象流体中に含まれる空気等の気泡は、一旦濾過対象流
体を通水させると中空糸膜１０３ａが濡れてしまい、濡
れた状態の中空糸膜１０３ａの膜表面を透過しずらいと
いう性質を備えているため、中空糸膜モジュール１０１
内部に留まり、透過流量が低下してしまうという問題が
あった。Further, in such a use condition, air bubbles or the like contained in the fluid to be filtered will wet the hollow fiber membrane 103a once the fluid to be filtered is made to pass, and the hollow fiber membrane in the wet state will be wetted. The hollow fiber membrane module 101 has the property that it does not easily pass through the membrane surface of 103a.
There was a problem that the flow rate of permeation stayed inside and decreased.
【０００６】そしてこの問題を解決する方法としては、
中空糸膜モジュール１０１に滞留している空気を排出す
れば良いことから、図５のように中空糸膜の糸束１０３
の外周に予め層状空気抜き１０５を巻き（図５（ａ）で
は一部のみ破断状態としている）、その後ポッティング
を行うことでケース１０２の内周面と中空糸膜の糸束１
０３の外周との間に多数の空気連通孔１１０を形成し、
内部に滞留する空気を膜透過流体と同時に流出させて、
膜透過流量の低下を防止することが行われている。As a method for solving this problem,
Since it is sufficient to discharge the air staying in the hollow fiber membrane module 101, the yarn bundle 103 of the hollow fiber membranes as shown in FIG.
A layered air vent 105 is preliminarily wound around the outer circumference of the case (only a part is broken in FIG. 5A), and then potting is performed to form the inner peripheral surface of the case 102 and the yarn bundle 1 of the hollow fiber membrane.
A large number of air communication holes 110 are formed between the outer periphery of 03 and
The air that stays inside is discharged at the same time as the membrane-permeable fluid,
The reduction of the membrane permeation flow rate is prevented.
【０００７】図５（ｂ）は、図５（ａ）のＤ１部を拡大
した図であり、この図により層状空気抜き１０５の構造
を説明する。層状空気抜き１０５は概略シート状の外観
形状を呈しており、２枚の空気透過性の薄いポリプロピ
レンあるいはポリエチレン等の熱溶着が可能でかつ且水
性のシート１０６ａ，１０６ｂの間に不織繊維１０７を
挟み込んだものである。この不織繊維１０７の存在によ
りシート１０６ａ，１０６ｂの間がトンネル状態となり
中空糸膜の糸束１０３に平行な多数本の空気連通孔１１
０が形成される。FIG. 5B is an enlarged view of the portion D1 of FIG. 5A, and the structure of the stratified air vent 105 will be described with reference to this drawing. The layered air vent 105 has a substantially sheet-like appearance, and two non-woven fibers 107 are sandwiched between two water-permeable sheets 106a and 106b which can be heat-welded to air-permeable thin polypropylene or polyethylene. It is Due to the presence of the non-woven fiber 107, a tunnel state is formed between the sheets 106a and 106b, and a large number of air communication holes 11 parallel to the yarn bundle 103 of the hollow fiber membrane 11 are formed.
0 is formed.
【０００８】２枚のシート１０６ａ，１０６ｂは不織繊
維１０７を挟んだ後、加熱圧着や超音波接合により各不
織繊維１０７の間を接合され、接合部１０５ａと空気連
通孔１１０が交互に形成される。尚接合部１０５ａは、
シート１０６ａ，１０６ｂの目がつぶれて空気透過性が
なくなるが、それ以外の部分では空気透過性が維持され
ている。The two sheets 106a and 106b sandwich the non-woven fibers 107, and then the non-woven fibers 107 are joined by thermocompression bonding or ultrasonic joining, so that the joining portions 105a and the air communicating holes 110 are alternately formed. To be done. The joint 105a is
Although the eyes of the sheets 106a and 106b are crushed to lose the air permeability, the air permeability is maintained in the other portions.
【０００９】図６は、この中空糸膜モジュール１０１の
実際の使用状態を模式的に表わした図であり、浄水器１
２０内部に中空糸膜モジュール１０１が配置されてい
る。浄水器１２０は、蓋部材１２１とハウジング１２２
からなる容器の内部に流入口部１２３より濾過対象流体
（水道水）を取り込み、矢印に沿って中空糸膜モジュー
ル１０１の内部に流入させ、流出口部１２４から濾過さ
れた膜透過流体を流出するものである。FIG. 6 is a diagram schematically showing an actual use state of the hollow fiber membrane module 101. The water purifier 1
A hollow fiber membrane module 101 is arranged inside the unit 20. The water purifier 120 includes a lid member 121 and a housing 122.
The fluid to be filtered (tap water) is taken into the inside of the container from the inflow port 123, flows into the hollow fiber membrane module 101 along the arrow, and the filtered membrane-permeated fluid flows out from the outflow port 124. It is a thing.
【００１０】中空糸膜モジュール１０１は流出口部１２
４を備えるキャップ１２５に嵌め込まれており、ポッテ
ィング部１０４の端面１０４ａに現れる中空糸膜１０３
ａの端面から流出する膜透過流体が流出口部１２４へと
導かれている。そして、中空糸膜モジュール１０１の内
部に滞留する空気は、空気連通孔１１０を通り膜透過流
体と共に流出口部１２４へと導かれ、排出される。The hollow fiber membrane module 101 has an outlet portion 12
The hollow fiber membrane 103 which is fitted in the cap 125 having the number 4 and appears on the end surface 104a of the potting portion 104.
The membrane permeate fluid flowing out from the end surface of a is guided to the outflow port portion 124. Then, the air staying inside the hollow fiber membrane module 101 passes through the air communication hole 110 and is guided to the outflow port portion 124 together with the membrane permeating fluid and is discharged.
【００１１】[0011]
【発明が解決しようとする課題】しかしながら、濾過対
象流体の圧力変動や圧力増加が発生すると、図７に示さ
れるように中空糸膜モジュール１０１のケース１０２の
内側に沿って配置されていた層状空気抜き１０５が本来
の位置から移動して中空糸膜の糸束１０３と相対移動を
伴う接触現象（こすれる状態）や中空糸膜の糸束１０３
を圧迫させたりする現象が発生し、中空糸膜１０３ａが
傷ついて破損したり、透過流量を低下させるという問題
を発生させる場合があった。However, when pressure fluctuation or pressure increase of the fluid to be filtered occurs, as shown in FIG. 7, the layered air vents arranged along the inside of the case 102 of the hollow fiber membrane module 101 are removed. 105 moves from its original position and comes into contact with the yarn bundle 103 of the hollow fiber membrane, which causes relative movement (rubbed state), and the yarn bundle 103 of the hollow fiber membrane.
In some cases, the hollow fiber membrane 103a may be damaged and damaged, or the permeation flow rate may be reduced.
【００１２】この問題を解決するために、層状空気抜き
１０５を端面１０４ａ側から軸方向の約１／２の長さだ
け備えるという対策や、中空糸膜の糸束を複数束備えて
それらの糸束の間に層状空気抜きを配置するという対策
等を行い、透過流量の確保を行うことが実施された。To solve this problem, the layered air vent 105 is provided with a length of about ½ in the axial direction from the end face 104a side, or a plurality of hollow fiber membrane yarn bundles are provided between the yarn bundles. Measures such as arranging stratified air vents were taken to secure the permeation flow rate.
【００１３】しかしこのような対策では、層状空気抜き
が小さくなり空気抜き量が低下したり、層状空気抜きの
端面が中空糸膜に当たるので不織布等の保護シートを必
要とする等の更に別の問題が生じていた。However, with such a measure, further problems such as the need for a protective sheet such as a non-woven fabric since the layered air vent is reduced and the air venting amount is reduced, or the end face of the layer air vent hits the hollow fiber membrane, are caused. It was
【００１４】本発明は上記従来技術の問題を解決するた
めになされたもので、その目的とするところは、層状空
気抜きを備えた中空糸膜モジュールにおいて、濾過時の
層状空気抜きの変形を抑えることにより、中空糸膜モジ
ュールの膜透過流量を維持することにある。The present invention has been made to solve the above-mentioned problems of the prior art. The object of the present invention is to suppress deformation of layered air vent during filtration in a hollow fiber membrane module equipped with layered air vent. , To maintain the membrane permeation flow rate of the hollow fiber membrane module.
【００１５】[0015]
【課題を解決するための手段】上記目的を達成するため
に、本発明にあっては、筒状のケースの中にシート状の
空気抜き手段を周囲に巻いた多数本の中空糸膜を装填
し、前記ケースの少なくとも１方の端部に位置する中空
糸膜及び空気抜き手段とケース内周部との隙間を封止す
る封止部を備えた中空糸膜モジュールにおいて、前記空
気抜き手段をケース内周部の近傍に位置させる保持手段
を備えることを特徴とする中空糸膜モジュール。In order to achieve the above object, according to the present invention, a plurality of hollow fiber membranes around which a sheet-shaped air venting means is wound are loaded in a cylindrical case. A hollow fiber membrane module having a hollow fiber membrane located at at least one end of the case and a sealing portion for sealing a gap between the air venting means and the inner peripheral portion of the case; A hollow fiber membrane module comprising a holding means positioned near the portion.
【００１６】従って、保持手段により空気抜き手段がケ
ースの内周部の近傍に保持されるので、ケースの内周部
から離れて中空糸膜の糸束と強く接触したり、圧迫した
りすることが防止される。Therefore, since the air bleeding means is held in the vicinity of the inner peripheral portion of the case by the holding means, it is possible to separate from the inner peripheral portion of the case and make strong contact with or press against the yarn bundle of the hollow fiber membrane. To be prevented.
【００１７】また、前記保持手段は、ケースの他方の端
部に取り付けられるキャップ部材に設けられ、前記中空
糸膜と空気抜き手段の間に位置するように突出する保持
部を備えること、あるいは前記中空糸膜と空気抜き手段
の間に位置し、ケース内周部に嵌合固定される環状部材
であることも好適である。The holding means is provided on a cap member attached to the other end of the case, and is provided with a holding portion protruding so as to be located between the hollow fiber membrane and the air venting means, or the hollow portion. It is also preferable that the annular member is located between the yarn membrane and the air venting means and is fitted and fixed to the inner peripheral portion of the case.
【００１８】この保持部あるいは環状部材により空気抜
き手段が保持され縮径方向の変形が抑えられる。The holding portion or the annular member holds the air bleeding means and suppresses the deformation in the radial contraction direction.
【００１９】また、前記保持手段は、空気抜き手段をケ
ース内周部に接合することにより固定する接合手段であ
ることも好適である。It is also preferable that the holding means is a joining means for fixing by fixing the air venting means to the inner peripheral portion of the case.
【００２０】この接合手段により、空気抜き手段はケー
ス内周部に接合されて変形が抑えられる。接合手段の接
合方法としては、接着剤による接着や超音波接合あるい
は加熱圧着等の種々の方法を採用することができる。With this joining means, the air venting means is joined to the inner peripheral portion of the case and deformation is suppressed. As a joining method of the joining means, various methods such as adhesion with an adhesive, ultrasonic joining, and thermocompression bonding can be adopted.
【００２１】[0021]
【発明の実施の形態】以下に本発明を図示の実施の形態
に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the illustrated embodiments.
【００２２】（実施の形態１）図１は本発明を適用した
中空糸膜モジュールの第１の実施の形態である。この中
空糸膜モジュール１は、例えば濾過対象流体として水
（水道水や貯水槽に蓄えられた水）の中に含まれる汚れ
成分としての微細な異物等を除去する浄水器等の内部に
装填され、流入する水の濾過を行う際に使用されるもの
である。(Embodiment 1) FIG. 1 is a first embodiment of a hollow fiber membrane module to which the present invention is applied. The hollow fiber membrane module 1 is loaded inside a water purifier or the like for removing fine foreign matters as a dirt component contained in water (tap water or water stored in a water tank) as a fluid to be filtered, for example. It is used when filtering inflowing water.
【００２３】ここでは本発明が中空糸膜モジュールに関
する発明であり、また浄水器の構成や中空糸膜モジュー
ル１の装填状態に関しては図６と同様であるので、中空
糸膜モジュール１に対して説明を行う。Here, the present invention is an invention relating to the hollow fiber membrane module, and the configuration of the water purifier and the loading state of the hollow fiber membrane module 1 are the same as those in FIG. I do.
【００２４】中空糸膜モジュール１は、プラスチック材
料等で形成された筒状のケース２の中に、Ｕ字状に折り
曲げた中空糸膜の糸束３を装填し、中空糸膜３ａの各端
面の開口を維持しつつ、中空糸膜の糸束３の端部３ｂと
ケース２の一方の端部２ａ内周部との隙間をウレタン系
あるいはエポキシ系等の接着剤等により封止されたポッ
ティング部４（破線の部分）を備えている。The hollow fiber membrane module 1 has a cylindrical case 2 made of a plastic material or the like, in which a yarn bundle 3 of U-shaped hollow fiber membranes is loaded, and each end surface of the hollow fiber membrane 3a is loaded. While the opening of the hollow fiber membrane is maintained, the gap between the end portion 3b of the yarn bundle 3 of the hollow fiber membrane and the inner peripheral portion of one end portion 2a of the case 2 is sealed with a urethane-based or epoxy-based adhesive or the like. Part 4 (broken line part) is provided.
【００２５】また、中空糸膜の糸束３は中空糸膜モジュ
ール１内部に溜った空気を排出するために、外周に予め
シート状の層状空気抜き５を巻いており、その後ポッテ
ィングを行うことでケース２の内周面と中空糸膜の糸束
３の外周との間に多数の空気連通孔１０を形成し、内部
に滞留する空気を膜透過流体と同時に流出させて、膜透
過流量の低下を防止している。The yarn bundle 3 of the hollow fiber membrane has a sheet-like layered air vent 5 wound in advance on the outer periphery in order to discharge the air accumulated in the hollow fiber membrane module 1, and then the potting is performed to form a case. A large number of air communication holes 10 are formed between the inner peripheral surface of 2 and the outer periphery of the yarn bundle 3 of the hollow fiber membrane, and the air retained inside is simultaneously discharged together with the membrane permeating fluid to reduce the membrane permeation flow rate. To prevent.
【００２６】層状空気抜き５は、図５（ｂ）で説明した
構成と同じであり、２枚の空気透過性の薄いシートの間
に不織繊維を挟み、中空糸膜の糸束３に平行な多数本の
トンネル状の連通孔１０を形成したものである。The layered air vent 5 has the same structure as that described with reference to FIG. 5 (b). The non-woven fibers are sandwiched between two thin air-permeable sheets and are parallel to the yarn bundle 3 of the hollow fiber membrane. A large number of tunnel-shaped communication holes 10 are formed.
【００２７】６はケース２のポッティング部４の反対側
の開口に取り付けられるキャップ部材である。このキャ
ップ部材６は、ケース２の内周形状に嵌合する底板部６
ａを備え、底板部６ａがケース２に嵌合して固定され
る。６ｂは濾過対象流体を中空糸膜モジュール内部に流
入させる開口である。Reference numeral 6 is a cap member attached to the opening of the case 2 opposite to the potting portion 4. The cap member 6 is a bottom plate portion 6 that fits into the inner peripheral shape of the case 2.
a, and the bottom plate portion 6a is fitted and fixed to the case 2. 6b is an opening for allowing the fluid to be filtered to flow into the hollow fiber membrane module.
【００２８】６ｃは、中空糸膜の糸束３とケース２の内
周部の間に位置する保持部としての突出部材であり、図
１（ｂ）に示されるように底板部６ａの外周に沿って少
し内側に複数本備えられている。従ってこの突出部材６
ｃとケース２の内周部の間に層状空気抜き５を挟むよう
にキャップ部材６を取り付けることで、層状空気抜き５
がケース２の内周部近傍に位置することになり、濾過対
象流体の圧力変動や圧力上昇等が発生しても、層状空気
抜き５による中空糸膜の糸束３へのこすれや圧迫を防止
することが可能となる。Reference numeral 6c is a protruding member as a holding portion located between the yarn bundle 3 of the hollow fiber membrane and the inner peripheral portion of the case 2. As shown in FIG. 1B, the protruding member 6c is provided on the outer periphery of the bottom plate portion 6a. There are several inside along the line. Therefore, this protruding member 6
By attaching the cap member 6 so that the layered air vent 5 is sandwiched between c and the inner peripheral portion of the case 2, the layered air vent 5
Is located in the vicinity of the inner peripheral portion of the case 2, and even if the pressure fluctuation or pressure rise of the fluid to be filtered occurs, the layered air vent 5 prevents the hollow fiber membrane from rubbing or pressing the yarn bundle 3. It becomes possible.
【００２９】この突出部材６ｃは、内周側が中空糸膜の
糸束３に接触するので、適当なアール形状にすること
で、中空糸膜の糸束３に傷を与えることが防止される。Since the inner peripheral side of the projecting member 6c contacts the yarn bundle 3 of the hollow fiber membrane, it is possible to prevent the yarn bundle 3 of the hollow fiber membrane from being damaged by forming it into an appropriate rounded shape.
【００３０】図２は、第１の実施の形態の変形例であ
り、図２（ａ）ではキャップ部材１６の底板部１６ａに
円筒状の保持部１６ｃが接合されている。この保持部１
６ｃには複数の窓１６ｄが開けられており、この窓１６
ｄを通って中空糸膜モジュール内部に滞留する空気は層
状空気抜き５と接触可能となっている。円筒状の保持部
１６ｃも、図１の保持部６ｃと同様に突出部材１６ｃと
ケース２の内周部の間に層状空気抜き５を挟むように保
持する。FIG. 2 shows a modification of the first embodiment. In FIG. 2A, a cylindrical holding portion 16c is joined to the bottom plate portion 16a of the cap member 16. This holding part 1
A plurality of windows 16d are opened in 6c.
The air staying inside the hollow fiber membrane module through d can contact the stratified air vent 5. Similarly to the holding portion 6c of FIG. 1, the cylindrical holding portion 16c also holds the layered air vent 5 between the protruding member 16c and the inner peripheral portion of the case 2.
【００３１】また、図２（ｂ）は、図１の環状に配置さ
れる突出部材６ｃに相当する突出部材２６ｃと、突出部
材２６ｃを環状に接続する環状接続部２６ｄを突出部材
２６ｃの軸方向の所定位置に備えた構成である。この構
成では、突出部材２６ｃの撓み剛性が高まり、高い圧力
の濾過対象流体が供給されても層状空気抜き５の縮径方
向の変形を防止することができる。2B, a protruding member 26c corresponding to the protruding member 6c arranged annularly in FIG. 1 and an annular connecting portion 26d connecting the protruding member 26c in an annular shape are formed in the axial direction of the protruding member 26c. Is provided at a predetermined position. With this configuration, the flexural rigidity of the protruding member 26c is increased, and it is possible to prevent the stratified air vent 5 from being deformed in the diameter reducing direction even when the fluid to be filtered having a high pressure is supplied.
【００３２】（実施の形態２）図３は本発明を適用した
中空糸膜モジュールの第２の実施の形態である。図３の
中空糸膜モジュール３１において、図１の中空糸膜モジ
ュール１と同じ構成部材に関しては同一の符号を付して
いる。(Second Embodiment) FIG. 3 shows a second embodiment of a hollow fiber membrane module to which the present invention is applied. In the hollow fiber membrane module 31 of FIG. 3, the same components as those of the hollow fiber membrane module 1 of FIG. 1 are designated by the same reference numerals.
【００３３】この中空糸膜モジュール３１は、層状空気
抜き５の保持手段として、中空糸膜の糸束３と層状空気
抜き５の間に位置し、ケース２の内周に層状空気抜き５
を挟むように嵌合固定される環状部材としての固定リン
グ３２を備えている。This hollow fiber membrane module 31 is located between the bundle 3 of hollow fiber membranes and the layered air vent 5 as a means for holding the layered air vent 5, and the layered air vent 5 is provided on the inner circumference of the case 2.
The fixing ring 32 is provided as an annular member that is fitted and fixed so as to sandwich.
【００３４】固定リング３２は、図３（ｂ），（ｃ），
（ｄ）のような形態を一例として採用することができ
る。図３（ｂ）は、閉じた固定リング３２であり、図３
（ｃ）は一部が開いた略Ｃ字状の固定リング３３、図３
（ｄ）は外周に突出部３４ａをラジアル方向に複数個備
えた固定リング３４である。The fixing ring 32 is shown in FIGS. 3 (b), 3 (c),
A form like (d) can be adopted as an example. FIG. 3B shows the closed fixing ring 32, which is shown in FIG.
(C) is a substantially C-shaped fixing ring 33 with a part opened, FIG.
(D) is a fixing ring 34 having a plurality of protrusions 34a on the outer circumference in the radial direction.
【００３５】それぞれの固定リングの特徴としては、固
定リング３２は縮径方向の剛性が強く、層状空気抜き５
を確実に固定することができる。固定リング３３は、装
着が容易に行うことができる。また、固定リング３４は
突出部３４ａにより層状空気抜き５の連通孔１０をつぶ
さずに保持することを可能としている。As a characteristic of each fixing ring, the fixing ring 32 has a high rigidity in the diameter reducing direction, and the layered air vent 5
Can be securely fixed. The fixing ring 33 can be easily attached. Further, the fixing ring 34 can hold the communication hole 10 of the stratified air vent 5 without being crushed by the protruding portion 34a.
【００３６】尚、この固定リングは中空糸膜モジュール
３１の軸方向に複数個備えることも可能であり、また、
固定リングを移動させないように、ケース２の内周部に
凹溝を設け、その中に固定リングを嵌合させることも良
い。It is possible to provide a plurality of fixing rings in the axial direction of the hollow fiber membrane module 31, and
It is also possible to provide a concave groove in the inner peripheral portion of the case 2 so that the fixing ring does not move, and fit the fixing ring therein.
【００３７】（実施の形態３）図４は本発明を適用した
中空糸膜モジュールの第３の実施の形態である。図４の
中空糸膜モジュール４１において、図１の中空糸膜モジ
ュール１と同じ構成部材に関しては同一の符号を付して
いる。(Embodiment 3) FIG. 4 shows a third embodiment of a hollow fiber membrane module to which the present invention is applied. In the hollow fiber membrane module 41 of FIG. 4, the same components as those of the hollow fiber membrane module 1 of FIG. 1 are designated by the same reference numerals.
【００３８】この第３の実施の形態の中空糸膜モジュー
ル４１では、層状空気抜き５の変形を防止するために、
ポッティング部４から離れた位置を、接合手段として加
熱圧着器のアーム４２によりスポット的に加熱圧着を行
い、接合部４３を円周方向に複数個形成している。キャ
ップ部材は加熱圧着の後に嵌合すれば良い。In the hollow fiber membrane module 41 of the third embodiment, in order to prevent deformation of the layered air vent 5,
A position apart from the potting portion 4 is spot-heat-pressed by an arm 42 of a thermocompression bonding device as a joining means to form a plurality of joining portions 43 in the circumferential direction. The cap member may be fitted after heating and pressure bonding.
【００３９】このような方法で層状空気抜き５の変形を
防止すると、加熱圧着工程等の接合工程は必要となる
が、保持部材付きのキャップ部材や固定リング等の新た
な部材は必要としないので、大きさやデザインの異なる
中空糸膜モジュールに対して即座に適用することが可能
となる。When the deformation of the layered air vent 5 is prevented by such a method, a joining process such as a thermocompression bonding process is required, but a cap member with a holding member and a new member such as a fixing ring are not required. It is possible to immediately apply to hollow fiber membrane modules of different sizes and designs.
【００４０】[0040]
【実施例】本発明の効果を確認する為に、図２（ｂ）の
キャップ部材２６を備え、層状空気抜き５の変形を防止
可能とした中空糸膜モジュール１（実施例とする）と、
従来技術により説明した図５に示される中空糸膜モジュ
ール１０１（比較例とする）との流量の変化を、濾過対
象流体の濾過前後の圧力差圧（０．２，０．５，１．０
（kgf ／ｃｍ2 ））に対応させて比較した。EXAMPLE In order to confirm the effect of the present invention, a hollow fiber membrane module 1 (referred to as an example), which is provided with a cap member 26 of FIG. 2B and is capable of preventing deformation of the layered air vent 5,
The change in the flow rate between the hollow fiber membrane module 101 (referred to as a comparative example) shown in FIG.
(Kgf / cm 2 )) and compared.
【００４１】それぞれのテストサンプルは、ケース内径
をφ３０ｍｍ、ケース内の有効長を６０ｍｍ、中空糸膜
の端面における充填率を４５％に統一する。In each test sample, the case inner diameter is 30 mm, the effective length in the case is 60 mm, and the filling rate at the end face of the hollow fiber membrane is 45%.
【００４２】実施例では、圧力差圧０．２，０．５，
１．０（kgf ／ｃｍ2 ）に対し、１．６，３．９，７．
０（ｌ／ｍｉｎ）の膜透過流体を得ることができた。ま
た、比較例では、同じ圧力差圧に対し、１．５，３．
４，５．８（ｌ／ｍｉｎ）の膜透過流体が得られた。In the embodiment, the pressure differential pressure is 0.2, 0.5,
For 1.0 (kgf / cm 2 ), 1.6, 3.9, 7.
A membrane permeation fluid of 0 (l / min) could be obtained. Moreover, in the comparative example, for the same pressure differential pressure, 1.5, 3.
A membrane permeation fluid of 4,5.8 (l / min) was obtained.
【００４３】この結果は、実施例のほうが全圧力差圧に
おいて、大きな膜透過流量をえることができ、さらに、
圧力差圧が大きくなる程比較例に対する膜透過流量の差
が大きくなり、本発明の効果を確認することができた。This result shows that the embodiment can obtain a large membrane permeation flow rate at the total pressure differential pressure.
As the pressure differential pressure increased, the difference in the membrane permeation flow rate with respect to the comparative example increased, and the effect of the present invention could be confirmed.
【００４４】[0044]
【発明の効果】上記の構成および作用を有する中空糸膜
モジュールによると、保持手段により空気抜き手段がケ
ースの内周部の近傍に保持されるので、ケースの内周部
から離れて中空糸膜の糸束と強く接触したり、圧迫した
りすることが防止されて濾過時の空気抜き手段の変形が
抑えられ、中空糸膜モジュールの膜透過流量を維持する
ことが可能となる。According to the hollow fiber membrane module having the above structure and operation, since the air venting means is held near the inner peripheral portion of the case by the holding means, the hollow fiber membrane module is separated from the inner peripheral portion of the case. It is possible to prevent strong contact with or pressure on the yarn bundle, suppress deformation of the air venting means during filtration, and maintain the membrane permeation flow rate of the hollow fiber membrane module.
【００４５】保持手段は、空気抜き手段の縮径方向の変
形を抑え、中空糸膜の糸束の圧迫を防止する。The holding means suppresses the deformation of the air venting means in the diameter reducing direction and prevents the yarn bundle of the hollow fiber membrane from being pressed.
【００４６】接合手段により空気抜き手段がケースの内
周部に接合されて変形せず、中空糸膜の糸束の圧迫を防
止する。The air venting means is joined to the inner peripheral portion of the case by the joining means and is not deformed to prevent the yarn bundle of the hollow fiber membrane from being pressed.
【図１】図１は本発明の第１の実施の形態に係る中空糸
膜モジュールの図。FIG. 1 is a view of a hollow fiber membrane module according to a first embodiment of the present invention.
【図２】図２は本発明の第１の実施の形態に係るキャッ
プ部材の変形例の図。FIG. 2 is a diagram of a modified example of the cap member according to the first embodiment of the present invention.
【図３】図３は本発明の第２の実施の形態に係る中空糸
膜モジュールの図。FIG. 3 is a view of a hollow fiber membrane module according to a second embodiment of the present invention.
【図４】図４は本発明の第３の実施の形態に係る中空糸
膜モジュールの図。FIG. 4 is a view of a hollow fiber membrane module according to a third embodiment of the present invention.
【図５】図５は従来の中空糸膜モジュールの図。FIG. 5 is a view of a conventional hollow fiber membrane module.
【図６】図６は中空糸膜モジュールが利用される浄水器
の模式図。FIG. 6 is a schematic view of a water purifier in which a hollow fiber membrane module is used.
【図７】図７は中空糸膜モジュールの濾過時に中空糸膜
の糸束が圧迫されている状態を説明する図。FIG. 7 is a diagram illustrating a state in which a yarn bundle of the hollow fiber membrane is pressed during filtration of the hollow fiber membrane module.
１ 中空糸膜モジュール ２ ケース ２ａ 一方の端部 ３ 中空糸膜の糸束 ３ａ 中空糸膜 ３ｂ 端部 ４ ポッティング部 ５ 層状空気抜き（空気抜き手段） ６ キャップ部材 ６ａ 底板部 ６ｂ 開口 ６ｃ 突出部材（保持部） １０ 連通孔 1 Hollow fiber membrane module 2 cases 2a One end 3 Bundles of hollow fiber membranes 3a hollow fiber membrane 3b end 4 potting section 5 Layered air vent (air vent) 6 Cap member 6a Bottom plate part 6b opening 6c Projection member (holding part) 10 communication holes
Claims (3)
段を周囲に巻いた多数本の中空糸膜を装填し、前記ケー
スの少なくとも１方の端部に位置する中空糸膜及び空気
抜き手段とケース内周部との隙間を封止する封止部を備
えた中空糸膜モジュールにおいて、 前記空気抜き手段をケース内周部の近傍に位置させる保
持手段を備え、 前記保持手段は、ケースの他方の端部に取り付けられる
キャップ部材に設けられ、前記中空糸膜と空気抜き手段
の間に位置するように突出する保持部を備えることを特
徴とする中空糸膜モジュール。1. A sheet-shaped air vent in a cylindrical case.
A large number of hollow fiber membranes wound around a corrugated bed are loaded and the
Hollow fiber membrane and air located at at least one end of the fiber
Equipped with a sealing part that seals the gap between the removal means and the inner circumference of the case.
In the obtained hollow fiber membrane module, the air venting means is maintained near the inner peripheral portion of the case.
The holding means is provided, and the holding means is provided on a cap member attached to the other end of the case, and is provided with a holding portion protruding so as to be located between the hollow fiber membrane and the air venting means. Hollow fiber membrane module.
段を周囲に巻いた多数本の中空糸膜を装填し、前記ケー
スの少なくとも１方の端部に位置する中空糸膜及び空気
抜き手段とケース内周部との隙間を封止する封止部を備
えた中空糸膜モジュールにおいて、 前記空気抜き手段をケース内周部の近傍に位置させる保
持手段を備え、 前記保持手段は、前記中空糸膜と空気抜き手段の間に位
置し、ケース内周部に嵌合固定される環状部材であるこ
とを特徴とする中空糸膜モジュール。2. A sheet-shaped air vent in a tubular case.
A large number of hollow fiber membranes wound around a corrugated bed are loaded and the
Hollow fiber membrane and air located at at least one end of the fiber
Equipped with a sealing part that seals the gap between the removal means and the inner circumference of the case.
In the obtained hollow fiber membrane module, the air venting means is maintained near the inner peripheral portion of the case.
A hollow fiber membrane module comprising holding means , wherein the holding means is an annular member located between the hollow fiber membrane and the air bleeding means and fitted and fixed to the inner peripheral portion of the case.
段を周囲に巻いた多数本の中空糸膜を装填し、前記ケー
スの少なくとも１方の端部に位置する中空糸膜及び空気
抜き手段とケース内周部との隙間を封止する封止部を備
えた中空糸膜モジュールにおいて、 前記空気抜き手段をケース内周部の近傍に位置させる保
持手段を備え、 前記保持手段は、空気抜き手段をケース内周部に接合す
ることにより固定する接合手段であることを特徴とする
中空糸膜モジュール。3. A sheet-like air vent in a tubular case.
A large number of hollow fiber membranes wound around a corrugated bed are loaded and the
Hollow fiber membrane and air located at at least one end of the fiber
Equipped with a sealing part that seals the gap between the removal means and the inner circumference of the case.
In the obtained hollow fiber membrane module, the air venting means is maintained near the inner peripheral portion of the case.
A hollow fiber membrane module comprising a holding means , wherein the holding means is a joining means for fixing the air bleeding means by joining it to the inner peripheral portion of the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33631396A JP3436026B2 (en) | 1996-12-02 | 1996-12-02 | Hollow fiber membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33631396A JP3436026B2 (en) | 1996-12-02 | 1996-12-02 | Hollow fiber membrane module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10156149A JPH10156149A (en) | 1998-06-16 |
| JP3436026B2 true JP3436026B2 (en) | 2003-08-11 |
Family
ID=18297830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33631396A Expired - Fee Related JP3436026B2 (en) | 1996-12-02 | 1996-12-02 | Hollow fiber membrane module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3436026B2 (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPQ680100A0 (en) * | 2000-04-10 | 2000-05-11 | Usf Filtration And Separations Group Inc. | Hollow fibre restraining system |
| AU2003903507A0 (en) | 2003-07-08 | 2003-07-24 | U. S. Filter Wastewater Group, Inc. | Membrane post-treatment |
| JP4611982B2 (en) | 2003-08-29 | 2011-01-12 | シーメンス・ウォーター・テクノロジーズ・コーポレーション | Backwash method |
| WO2006029465A1 (en) | 2004-09-15 | 2006-03-23 | Siemens Water Technologies Corp. | Continuously variable aeration |
| CA2605757A1 (en) | 2005-04-29 | 2006-11-09 | Siemens Water Technologies Corp. | Chemical clean for membrane filter |
| KR101206291B1 (en) * | 2005-06-23 | 2012-11-29 | 에치투엘 주식회사 | Potting Method of Hollow Fiber Membrane Element for Water Treatment |
| CA2618107A1 (en) | 2005-08-22 | 2007-03-01 | Siemens Water Technologies Corp. | An assembly for water filtration using a tube manifold to minimise backwash |
| US8293098B2 (en) | 2006-10-24 | 2012-10-23 | Siemens Industry, Inc. | Infiltration/inflow control for membrane bioreactor |
| EP2129629A1 (en) | 2007-04-02 | 2009-12-09 | Siemens Water Technologies Corp. | Improved infiltration/inflow control for membrane bioreactor |
| US9764288B2 (en) | 2007-04-04 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane module protection |
| KR20170092708A (en) | 2007-05-29 | 2017-08-11 | 에보쿠아 워터 테크놀로지스 엘엘씨 | Water treatment system |
| CA2731774A1 (en) | 2008-07-24 | 2010-01-28 | Siemens Water Technologies Corp. | Frame system for membrane filtration modules |
| WO2010142673A1 (en) | 2009-06-11 | 2010-12-16 | Siemens Water Technologies Corp. | Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane |
| HUE045642T2 (en) | 2010-04-30 | 2020-01-28 | Evoqua Water Tech Llc | Fluid flow distribution device |
| EP2618916A4 (en) | 2010-09-24 | 2016-08-17 | Evoqua Water Technologies Llc | Fluid control manifold for membrane filtration system |
| WO2013049109A1 (en) | 2011-09-30 | 2013-04-04 | Siemens Industry, Inc. | Isolation valve |
| JP2014528352A (en) | 2011-09-30 | 2014-10-27 | エヴォクア ウォーター テクノロジーズ エルエルシーＥｖｏｑｕａ Ｗａｔｅｒ Ｔｅｃｈｎｏｌｏｇｉｅｓｌｌｃ | Improved manifold structure |
| KR102108593B1 (en) | 2012-06-28 | 2020-05-29 | 에보쿠아 워터 테크놀로지스 엘엘씨 | A potting method |
| KR20150054918A (en) | 2012-09-14 | 2015-05-20 | 에보쿠아 워터 테크놀로지스 엘엘씨 | A polymer blend for membranes |
| AU2013231145B2 (en) | 2012-09-26 | 2017-08-17 | Evoqua Water Technologies Llc | Membrane potting methods |
| US9764289B2 (en) | 2012-09-26 | 2017-09-19 | Evoqua Water Technologies Llc | Membrane securement device |
| WO2014052139A1 (en) | 2012-09-27 | 2014-04-03 | Evoqua Water Technologies Llc | Gas scouring apparatus for immersed membranes |
| EP3052221B1 (en) | 2013-10-02 | 2022-12-14 | Rohm & Haas Electronic Materials Singapore Pte. Ltd | Device for repairing a membrane filtration module |
| JP6187143B2 (en) * | 2013-10-23 | 2017-08-30 | Nok株式会社 | Water purification cartridge |
| AU2016294153B2 (en) | 2015-07-14 | 2022-01-20 | Evoqua Water Technologies Llc | Aeration device for filtration system |
-
1996
- 1996-12-02 JP JP33631396A patent/JP3436026B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10156149A (en) | 1998-06-16 |
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