JP3376733B2 - Hollow fiber membrane module - Google Patents
Hollow fiber membrane moduleInfo
- Publication number
- JP3376733B2 JP3376733B2 JP32381894A JP32381894A JP3376733B2 JP 3376733 B2 JP3376733 B2 JP 3376733B2 JP 32381894 A JP32381894 A JP 32381894A JP 32381894 A JP32381894 A JP 32381894A JP 3376733 B2 JP3376733 B2 JP 3376733B2
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- casing
- fiber membranes
- membrane module
- 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]
【産業上の利用分野】本発明は中空糸型膜モジュールに
係り、特にエアバブリングや逆流水洗浄等の物理的洗浄
機構を備えた中空糸型膜モジュールに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hollow fiber type membrane module, and more particularly to a hollow fiber type membrane module provided with a physical cleaning mechanism such as air bubbling and backwashing.
【０００２】[0002]
【従来の技術】図５は従来の一般的な中空糸型膜モジュ
ール１の全体構成図である。ケーシング２内には多数の
中空糸膜３を束ねた複数の中空糸膜束４が収納され、中
空糸膜束４の上端はケーシング２の天板を兼ねた上端支
持部５に固定され、中空糸膜束４の下端はケーシング２
の底板を兼ねた下端支持部６に固定される。そして、ケ
ーシング２の下部側面に形成された流入口７から被処理
水８をケーシング２内に流入させて、ケーシング２の上
部側面に形成された流出口９から排出する流れを形成す
る。この流れにおいて、被処理水８は中空糸膜３により
濾過され、濾過された処理水１０は中空糸膜３内を通っ
て上部支持部５からケーシング外に排出される。しか
し、濾過時間が経過して中空糸膜３の表面に被処理水８
中の懸濁物質が付着すると、濾過抵抗が大きくなり膜透
過流速（ＦＬＵＸ）が徐々に低下する。この為、被処理
水８のケーシング２内への供給を停止し、逆洗水を供給
する逆流水洗浄を行った後、エア吹出配管１１から加圧
エアを吹き出してケーシング２内の逆洗水をエアバブリ
ングするエアバブリング洗浄等の物理的洗浄を行って、
懸濁物質を中空糸膜３から剥離する。剥離された懸濁物
質は下端支持部６に沈降して、ケーシングの側面下部に
形成された排出口１２からケーシング２外に排出され
る。また、エアバブリングを行う際にはエアにより中空
糸膜３を揺らがせることにより中空糸膜３の表面に付着
した懸濁物質を剥離する。2. Description of the Related Art FIG. 5 is an overall configuration diagram of a conventional general hollow fiber type membrane module 1. A plurality of hollow fiber membrane bundles 4 in which a large number of hollow fiber membranes 3 are bundled are housed in the casing 2, and the upper ends of the hollow fiber membrane bundles 4 are fixed to an upper end support portion 5 that also serves as a top plate of the casing 2 The lower end of the yarn bundle 4 is the casing 2
Is fixed to the lower end support portion 6 which also serves as a bottom plate. Then, the water to be treated 8 is introduced into the casing 2 through the inlet 7 formed on the lower side surface of the casing 2, and is discharged from the outlet 9 formed on the upper side surface of the casing 2. In this flow, the treated water 8 is filtered by the hollow fiber membrane 3, and the filtered treated water 10 passes through the hollow fiber membrane 3 and is discharged from the upper support portion 5 to the outside of the casing. However, after the filtration time has passed, the treated water 8
When the suspended matter in the inside adheres, the filtration resistance increases and the membrane permeation flow rate (FLUX) gradually decreases. Therefore, the supply of the water to be treated 8 into the casing 2 is stopped, the backwash water is supplied to supply the backwash water, and then the pressurized air is blown from the air blowing pipe 11 to wash the backwash water in the casing 2. Perform physical cleaning such as air bubbling cleaning.
The suspended substance is peeled off from the hollow fiber membrane 3. The separated suspended substance settles on the lower end support portion 6 and is discharged to the outside of the casing 2 through a discharge port 12 formed in the lower side surface of the casing. Further, when performing air bubbling, the hollow fiber membrane 3 is shaken by air to remove the suspended substance adhering to the surface of the hollow fiber membrane 3.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、ケーシ
ング２内には高い収納率で中空糸膜束４が収納されてい
るので、従来の中空糸型膜モジュール１の場合、中空糸
膜３を洗浄する際に、中空糸膜３から剥離されて下端支
持部６に沈降した懸濁物質は中空糸膜束４が邪魔になっ
て排出口１２から排出されにくいという欠点がある。こ
の結果、下端支持部６に懸濁物質が徐々に堆積して排出
口１２を塞ぎ更に排出不良を促進してしまう。また、懸
濁物質の排出が充分に行われないまま、即ち、下端支持
部６に堆積した懸濁物質で中空糸膜３の下部を覆ったま
ま再び濾過操作を開始すると、濾過面積を低下させ、濾
過能力が極端に悪化するという問題がある。However, since the hollow fiber membrane bundle 4 is accommodated in the casing 2 at a high accommodation rate, in the case of the conventional hollow fiber type membrane module 1, the hollow fiber membrane 3 is washed. At this time, there is a drawback that the suspended substance separated from the hollow fiber membranes 3 and settled on the lower end support portion 6 interferes with the hollow fiber membrane bundles 4 and is difficult to be discharged from the discharge port 12. As a result, the suspended substance gradually accumulates on the lower end support portion 6 to block the discharge port 12 and further promote defective discharge. When the filtration operation is started again while the suspended substance is not sufficiently discharged, that is, while the lower part of the hollow fiber membrane 3 is covered with the suspended substance accumulated on the lower end support portion 6, the filtration area is reduced. However, there is a problem that the filtration capacity is extremely deteriorated.
【０００４】また、従来の中空糸型膜モジュール１は、
エア吹出配管１１がケーシング２の中央にしかないの
で、多数の中空糸膜３から懸濁物質を均等に剥離させる
為には、ケーシング２内に多量の空気を供給しなくては
ならないという欠点がある。本発明はこのような事情に
鑑みてなされたもので、中空糸膜から剥離された懸濁物
質を速やかに排出することができる共に、中空糸膜から
の懸濁物質の剥離効果を向上させる中空糸型膜モジュー
ルを提供することを目的とする。Further, the conventional hollow fiber type membrane module 1 is
Since the air blowing pipe 11 is provided only in the center of the casing 2, there is a disadvantage that a large amount of air must be supplied into the casing 2 in order to evenly separate the suspended substances from the large number of hollow fiber membranes 3. . The present invention has been made in view of the above circumstances, and it is possible to quickly discharge the suspended matter separated from the hollow fiber membrane and to improve the effect of releasing the suspended matter from the hollow fiber membrane. An object is to provide a yarn type membrane module.
【０００５】[0005]
【課題を解決する為の手段】本発明は前記目的を達成す
る為に、多数本の中空糸膜をケーシング内に収納し、前
記中空糸膜の上端を上端支持部に支持すると共にその下
端を下端支持部に支持し、前記ケーシング内に供給した
被処理水を前記中空糸膜で濾過すると共に、前記濾過に
より中空糸膜の表面に付着した被処理水中の懸濁物質を
洗浄手段により剥離させてケーシング外に排出する中空
糸型膜モジュールに於いて、前記ケーシング内で前記下
端支持部の下方に、空間部と懸濁物質の排出口を形成
し、前記下端支持部を前記多数の中空糸膜の束ごとに分
割させて中空糸膜から剥離した懸濁物質が前記空間部に
沈降する通路を形成すると共に、前記分割した中空糸膜
の束の各下端支持部を放射状の連結棒で支持し、前記連
結棒の中心を支持棒で支持し、該支持棒を正転・逆転さ
せることにより前記中空糸膜の束をツイストさせるツイ
スト機構を備えたことを特徴とする。In order to achieve the above-mentioned object, the present invention accommodates a large number of hollow fiber membranes in a casing, supports the upper ends of the hollow fiber membranes in an upper end supporting portion, and lowers the lower ends thereof. The water to be treated supplied to the casing is filtered by the hollow fiber membrane while being supported by the lower end supporting portion, and the suspended substance in the water to be treated adhering to the surface of the hollow fiber membrane by the filtration is removed by a washing means. In a hollow fiber type membrane module that discharges to the outside of a casing, a space and a discharge port for suspended substances are formed in the casing below the lower end support portion.
Then, the lower end support portion is divided into bundles of the large number of hollow fiber membranes to form a passage through which suspended substances separated from the hollow fiber membranes settle in the space portion, and the divided hollow fiber membranes are formed.
Each lower end support part of the bundle is supported by radial connecting rods,
Support the center of the tie rod with a support rod, and
Twisting the bundle of hollow fiber membranes by twisting
It is characterized by having a strike mechanism .
【０００６】[0006]
【作用】本発明によれば、ケーシング内で下端支持部の
下方に、空間部と懸濁物質の排出口を形成する。また、
下端支持部を多数の中空糸膜の束ごとに分割させて中空
糸膜から剥離された懸濁物質が前記空間部に沈降する通
路を形成した。これにより、中空糸膜から剥離された懸
濁物質は空間部に沈降し、沈降した懸濁物質は中空糸膜
に邪魔されることなくスムーズに排出口から排出する。
また、沈降する懸濁物質は下部支持部には堆積せずに空
間部に堆積するので、中空糸膜の下部が懸濁物質で覆れ
ることがない。これにより、仮に、中空糸膜から剥離し
た懸濁物質が完全に排出されない場合でも、従来の中空
糸型膜モジュールのように堆積した懸濁物質により中空
糸膜の下部が覆れて濾過面積が低下するという欠点を解
消することができる。According to the present invention, the space and the suspended substance discharge port are formed in the casing below the lower end support. Also,
The lower end supporting portion was divided into bundles of a large number of hollow fiber membranes to form a passage through which suspended substances separated from the hollow fiber membranes settle in the space. As a result, the suspended substance separated from the hollow fiber membrane settles in the space, and the suspended suspended substance is smoothly discharged from the discharge port without being disturbed by the hollow fiber membrane.
In addition, since the settled suspended substance is not deposited on the lower support part but is deposited on the space part, the lower part of the hollow fiber membrane is not covered with the suspended substance. As a result, even if the suspended substance separated from the hollow fiber membrane is not completely discharged, the lower part of the hollow fiber membrane is covered with the suspended substance accumulated as in the conventional hollow fiber membrane module, and the filtration area is reduced. It is possible to eliminate the drawback of lowering.
【０００７】また、中空糸膜の束をツイストさせるツイ
スト機構を設けることにより、中空糸膜から懸濁物質が
剥離し易くなる。また、分割した分割支持部同志の間に
前記濾過領域に向けてエアを噴出する複数のエアノズル
を備えたことにより、ケーシング内を均等にエアバブリ
ングすることができるので、中空糸膜から懸濁物質が剥
離し易くなる。Further, by providing a twist mechanism for twisting the bundle of hollow fiber membranes, suspended substances are easily separated from the hollow fiber membranes. Further, since a plurality of air nozzles for ejecting air toward the filtration region are provided between the divided support portions, air can be uniformly bubbled in the casing, so that the suspended substance is suspended from the hollow fiber membrane. Are easily peeled off.
【０００８】[0008]
【実施例】以下添付図面に従って本発明に係る中空糸型
膜モジュールの好ましい実施例について詳説する。図１
は本発明の中空糸型膜モジュール２０の第１実施例の全
体構成を示す断面図である。また、図２は図１のＡ−Ａ
線に沿った矢視図である。図１に示すように、縦方向に
配設された中空円筒状のケーシング２２内には、多数の
チューブ状の中空糸膜２４を束ねた複数の中空糸膜束２
６が収納される。また、中空糸膜束２６の上端はケーシ
ング２２の天板を兼ねた上端支持部２８に固定されると
共に、上端支持部２８の固定部には集水室３０に連通す
る連通孔３２が形成され、集水室３０は処理水配管３４
に接続される。The preferred embodiments of the hollow fiber type membrane module according to the present invention will be described in detail below with reference to the accompanying drawings. Figure 1
FIG. 1 is a sectional view showing an overall configuration of a first embodiment of a hollow fiber type membrane module 20 of the present invention. In addition, FIG. 2 shows AA of FIG.
It is an arrow view along a line. As shown in FIG. 1, a plurality of hollow fiber membrane bundles 2 in which a large number of tubular hollow fiber membranes 24 are bundled in a hollow cylindrical casing 22 arranged in the vertical direction.
6 is stored. Further, the upper end of the hollow fiber membrane bundle 26 is fixed to an upper end support portion 28 that also serves as a top plate of the casing 22, and a communication hole 32 that communicates with the water collection chamber 30 is formed in the fixed portion of the upper end support portion 28. , The water collection chamber 30 is the treated water pipe 34
Connected to.
【０００９】一方、図１及び図２に示すように、それぞ
れの中空糸膜束２６の下端は中空糸膜束２６の端面とほ
ぼ同面積の円板状の支持部材３６に固着されると共に、
各支持部材３６はケーシング２２の底板３８の中央部を
密封性を有して貫通する支持棒４０から放射状に延びた
連結棒４２に支持される。この支持棒４０及び連結棒４
２は強度的に問題のない限度で細く形成される。これに
より、ケーシング２２内で各支持部材３６の下方、即
ち、中空糸膜束２６の下端下方には、空間部４４が形成
されると共に、ケーシング２２内の中空糸膜２４を収納
する領域と空間部４４を連通する通路４５が形成され
る。そして、ケーシング２２の側面下端には空間部４４
に連通する懸濁物質の排出口４６が形成される。On the other hand, as shown in FIGS. 1 and 2, the lower end of each hollow fiber membrane bundle 26 is fixed to a disc-shaped support member 36 having substantially the same area as the end surface of the hollow fiber membrane bundle 26, and
Each supporting member 36 is supported by a connecting rod 42 that extends radially from a supporting rod 40 that penetrates the central portion of the bottom plate 38 of the casing 22 in a sealing manner. The support rod 40 and the connecting rod 4
2 is thinly formed to the extent that there is no problem in strength. As a result, a space portion 44 is formed in the casing 22 below each support member 36, that is, below the lower end of the hollow fiber membrane bundle 26, and a space and a space for accommodating the hollow fiber membranes 24 in the casing 22. A passage 45 communicating with the portion 44 is formed. A space 44 is formed at the lower end of the side surface of the casing 22.
A discharge port 46 for suspended matter is formed in communication with the.
【００１０】また、ケーシング２２の側面下部には被処
理水４８の流入口５０が形成されると共に、流入口５０
とは反対側の側面上部には被処理水４８の流出口５２が
形成される。そして、ケーシング２２内には、被処理水
４８が供給ポンプ５４により加圧供給される。また、前
記空間部４４には、前記支持部材３６の間から上向きに
加圧エアを吹き出すように複数のエアノズル５６が配置
される。また、各エアノズル５６はエア配管５８に接続
されると共に、エア配管５８は底板３８を貫通して外部
に延設され、図示しないコンプレッサに接続される。Further, an inlet 50 for the water to be treated 48 is formed in the lower portion of the side surface of the casing 22, and the inlet 50
An outlet 52 for the water to be treated 48 is formed on the upper side surface opposite to the side. Then, the water to be treated 48 is pressurized and supplied into the casing 22 by the supply pump 54. Further, a plurality of air nozzles 56 are arranged in the space portion 44 so as to blow the pressurized air upward between the support members 36. Each air nozzle 56 is connected to an air pipe 58, and the air pipe 58 extends through the bottom plate 38 to the outside and is connected to a compressor (not shown).
【００１１】次に、上記の如く構成された本発明の中空
糸型膜モジュールの第１実施例の作用を説明する。懸濁
物質を含んだ下水等の被処理水４８は、供給ポンプ５４
により流入口５０からケーシング２２内に加圧供給され
る。ケーシング２２内に供給された被処理水４８は、多
数の中空糸膜２４により濾過される。濾過された処理水
６０はチューブ状の中空糸膜２４内を流れて上部支持部
２８の連通孔３２から集水室３０に集まり、処理水配管
３４により装置２０外に排出される。Next, the operation of the first embodiment of the hollow fiber type membrane module of the present invention constructed as above will be described. The treated water 48 such as sewage containing suspended matter is supplied by a supply pump 54.
Thus, pressure is supplied from the inflow port 50 into the casing 22. The water 48 to be treated supplied into the casing 22 is filtered by the numerous hollow fiber membranes 24. The filtered treated water 60 flows in the tubular hollow fiber membrane 24, collects in the water collection chamber 30 from the communication hole 32 of the upper support 28, and is discharged to the outside of the apparatus 20 by the treated water pipe 34.
【００１２】上記濾過操作を継続すると、中空糸膜２４
の表面に被処理水４８中の懸濁物質が付着して膜２４が
汚れ、膜透過流速（ＦＬＵＸ）が徐々に低下するので、
膜透過流速（ＦＬＵＸ）が所定以下になったら、又は濾
過圧力が所定以上になったら、供給ポンプ５４を停止し
て濾過操作を停止し、中空糸膜２４の洗浄を行う。中空
糸膜２４の洗浄は、処理水配管３４から逆洗水を中空糸
膜２４内に供給して中空糸膜２４の外部に透過させる逆
流水洗浄を行う。逆洗後、エアノズル５６から加圧エア
を吹き出してケーシング２２内の逆洗水をエアバブリン
グし、中空糸膜２４を揺らがせることにより中空糸膜２
４の表面に付着した懸濁物質を剥離して排出口４６から
装置外に排出する。この洗浄操作において、本発明の中
空糸型膜モジュール２０によれば、複数の支持部材３６
の間にそれぞれエアノズル５６を配置して加圧エアを上
向きに吹き出すようにしたので、ケーシング２２内の逆
洗水を均等にバブリングすることができる。これによ
り、多数の中空糸膜２４をむらなく揺るがせることがで
きるので、中空糸膜２４を均等にエアバブリング洗浄す
ることができる。また、中空糸膜２４から剥離した懸濁
物質はケーシング２２内の底部に形成された空間部４４
に沈降して排出口４６から逆洗水に懸濁した懸濁液とし
て排出される。このように、中空糸膜束２６の下端下方
に空間部４４と排出口４６を形成したことにより、従来
の中空糸型膜モジュールのように中空糸膜２４が懸濁物
質の排出の邪魔にならない。従って、懸濁物質を排出口
４６からスムーズに排出させることができる。また、沈
降した懸濁物質が空間部４４に堆積しても、従来の中空
糸型膜モジュールのように中空糸膜２４の下部が懸濁物
質で覆われることがない。これにより、再び濾過操作を
行う際に、仮に、中空糸膜２４から剥離した懸濁物質が
完全に排出されない場合でも、中空糸膜２４の下部が覆
れて濾過面積が低下するということを防止できる。When the filtration operation is continued, the hollow fiber membrane 24
Suspended matter in the water 48 to be treated adheres to the surface of the membrane to stain the membrane 24, and the membrane permeation flow rate (FLUX) gradually decreases.
When the membrane permeation flow rate (FLUX) becomes lower than a predetermined value or when the filtration pressure becomes higher than a predetermined value, the supply pump 54 is stopped to stop the filtration operation, and the hollow fiber membrane 24 is washed. To wash the hollow fiber membranes 24, backwash water is supplied to the hollow fiber membranes 24 by supplying backwash water from the treated water pipe 34 and permeating the hollow fiber membranes 24 to the outside. After the backwashing, pressurized air is blown out from the air nozzle 56 to air-blow the backwashing water in the casing 22 to rock the hollow fiber membranes 24, thereby making the hollow fiber membranes 2
The suspended substance adhering to the surface of 4 is peeled off and discharged from the discharge port 46 to the outside of the apparatus. In this washing operation, according to the hollow fiber membrane module 20 of the present invention, the plurality of support members 36 are provided.
Since the air nozzles 56 are respectively arranged between the two to blow the pressurized air upward, the backwash water in the casing 22 can be evenly bubbled. As a result, a large number of hollow fiber membranes 24 can be shaken evenly, so that the hollow fiber membranes 24 can be uniformly air-bubbled and washed. Further, the suspended substance separated from the hollow fiber membrane 24 has a space 44 formed at the bottom of the casing 22.
And is discharged as a suspension suspended in backwash water from the discharge port 46. Since the space 44 and the discharge port 46 are formed below the lower end of the hollow fiber membrane bundle 26 in this way, the hollow fiber membrane 24 does not interfere with the discharge of the suspended substance unlike the conventional hollow fiber membrane module. .. Therefore, the suspended substance can be smoothly discharged from the discharge port 46. Moreover, even if the sedimented suspended substance is deposited in the space 44, the lower portion of the hollow fiber membrane 24 is not covered with the suspended substance unlike the conventional hollow fiber membrane module. This prevents the lower part of the hollow fiber membrane 24 from being covered and the filtration area being reduced when the suspended substance separated from the hollow fiber membrane 24 is not completely discharged when the filtration operation is performed again. it can.
【００１３】次に、図３により、本発明の中空糸型膜モ
ジュールの第２実施例を説明する。第１実施例との相違
点は、エアノズル５６に加圧エアを供給するエア配管５
８を支持棒４０内に配設して、エア配管５８と支持棒４
０を一体化させると共に、支持棒４０を正転・逆転でき
るようにした。第２実施例によれば、第１実施例と同様
の効果が得られる他に、エアノズル５６から加圧エアを
吹き出してケーシング２２内の逆洗水をエアバブリング
する時に、所定の回転角度で支持棒４０を正転・逆転運
動、即ち、ツイスト運動させることができる。これによ
り、中空糸膜束２６をツイストさせることができるの
で、中空糸膜２４の捻じれや揺らぎが大きくなる。従っ
て、中空糸膜２４から懸濁物質を剥離させる剥離効果を
向上させることができる。このツイスト運動の回転角度
は中空糸膜２４や中空糸膜２４と上部支持部２８との固
定に悪影響のない程度に設定する。また、支持棒４０と
共にエアノズル５６がツイスト運動することにより、ケ
ーシング２２内に乱流が発生するので、中空糸膜２４か
ら懸濁物質を剥離する効果を更に向上できる。Next, a second embodiment of the hollow fiber type membrane module of the present invention will be described with reference to FIG. The difference from the first embodiment is that the air pipe 5 that supplies pressurized air to the air nozzle 56.
8 is disposed in the support rod 40, and the air pipe 58 and the support rod 4 are provided.
In addition to integrating 0, the support rod 40 can be rotated forward and backward. According to the second embodiment, in addition to obtaining the same effect as the first embodiment, when the backwash water in the casing 22 is air bubbled by blowing the pressurized air from the air nozzle 56, it is supported at a predetermined rotation angle. The rod 40 can be forward / reverse-moved, that is, twisted. As a result, the hollow fiber membrane bundle 26 can be twisted, so that the hollow fiber membrane 24 is greatly twisted and fluctuated. Therefore, the peeling effect of peeling the suspended substance from the hollow fiber membrane 24 can be improved. The rotation angle of this twist movement is set to such an extent that the hollow fiber membrane 24 and the fixation of the hollow fiber membrane 24 and the upper support 28 are not adversely affected. In addition, since the air nozzle 56 twists together with the support rod 40 to generate a turbulent flow in the casing 22, the effect of separating the suspended substance from the hollow fiber membrane 24 can be further improved.
【００１４】次に、図４に従って、本発明の中空糸型膜
モジュールの第３実施例について説明する。第３実施例
は第２実施例の変形で、エアノズル５６の下方に支持棒
４０と同期回転する複数のパドル６２を設けた。これに
より、空間部４４に堆積した懸濁物質をパドル６２の回
転により排出口４６に導くことがことができるので、空
間部４４に堆積した懸濁物質を確実に排出することがで
きる。Next, a third embodiment of the hollow fiber type membrane module of the present invention will be described with reference to FIG. The third embodiment is a modification of the second embodiment, and a plurality of paddles 62 that rotate in synchronization with the support rod 40 are provided below the air nozzle 56. Accordingly, the suspended substance accumulated in the space portion 44 can be guided to the discharge port 46 by the rotation of the paddle 62, so that the suspended substance accumulated in the space portion 44 can be reliably discharged.
【００１５】[0015]
【発明の効果】以上説明したように、本発明の中空糸型
膜モジュールによれば、中空糸膜から剥離された懸濁物
質を、中空糸膜束の下端下方に形成した空間部に沈降さ
せて排出口から排出することができるので、中空糸膜に
邪魔されることなくスムーズに懸濁物質を排出させるこ
とができる。As described above, according to the hollow fiber membrane module of the present invention, the suspended substance separated from the hollow fiber membrane is allowed to settle in the space formed below the lower end of the hollow fiber membrane bundle. Therefore, the suspended substance can be smoothly discharged without being disturbed by the hollow fiber membrane.
【００１６】また、沈降する懸濁物質は下部支持部には
堆積せずに空間部に堆積し、中空糸膜の下部が懸濁物質
で覆れることがないので、仮に、中空糸膜から剥離した
懸濁物質が完全に排出されない場合でも、従来の中空糸
型膜モジュールのように堆積した懸濁物質により中空糸
膜の下部が覆れて濾過面積が低下するという欠点を解消
することができる。[0016] Further, the suspended substance that settles is not deposited on the lower support part but is deposited on the space part, and the lower part of the hollow fiber membrane is not covered with the suspended substance. Even if the suspended substance is not completely discharged, it is possible to eliminate the disadvantage that the lower portion of the hollow fiber membrane is covered with the suspended substance that is deposited as in the conventional hollow fiber type membrane module and the filtration area is reduced. .
【００１７】また、中空糸膜の束をツイストさせるツイ
スト機構を設けたので、中空糸膜に捻じれや揺らぎを発
生させることができ、懸濁物質の剥離効果を向上させる
ことができる。また、支持部材の間にエアノズルが配置
されるようにしたので、多数の中空糸膜を均等にエアを
バブリングすることができ、中空糸膜から懸濁物質を剥
離する剥離効果を向上できる。これにより、エアノズル
から吹き出す空気量を削減することができる。Further, since the twisting mechanism for twisting the bundle of hollow fiber membranes is provided, the hollow fiber membranes can be twisted or fluctuated, and the effect of peeling the suspended substance can be improved. Further, since the air nozzles are arranged between the supporting members, it is possible to evenly bubble air through a large number of hollow fiber membranes, and it is possible to improve the peeling effect of peeling the suspended substance from the hollow fiber membranes. As a result, the amount of air blown from the air nozzle can be reduced.
【図１】図１は、本発明に係る中空糸型膜モジュールの
第１実施例の全体構成を説明する断面図FIG. 1 is a cross-sectional view illustrating the overall configuration of a first embodiment of a hollow fiber type membrane module according to the present invention.
【図２】図２は、図１のＡ−Ａ線の矢視図FIG. 2 is a view taken along the line AA of FIG.
【図３】図３は、本発明に係る中空糸型膜モジュールの
第２実施例の全体構成を説明する断面図FIG. 3 is a cross-sectional view illustrating the overall configuration of a second embodiment of the hollow fiber type membrane module according to the present invention.
【図４】図４は、本発明に係る中空糸型膜モジュールの
第３実施例の全体構成を説明する断面図FIG. 4 is a cross-sectional view illustrating the overall configuration of a third embodiment of the hollow fiber type membrane module according to the present invention.
【図５】図５は、従来の中空糸型膜モジュールを説明す
る断面図FIG. 5 is a cross-sectional view illustrating a conventional hollow fiber type membrane module.
【符号の説明】 ２０…中空糸型膜モジュール ２２…ケーシング ２４…中空糸膜 ２６…中空糸膜束 ２８…上端支持部 ３０…集水室 ３２…上端支持部の連通孔 ３４…処理水配管 ３６…支持部材 ３８…底板 ４０…支持棒 ４２…連結棒 ４４…空間部 ４６…懸濁物質の排出口 ４８…被処理水 ５０…被処理水の流入口 ５２…被処理水の流出口 ５６…エアノズル ６０…処理水 ６２…パドル[Explanation of symbols] 20 ... Hollow fiber type membrane module 22 ... Casing 24 ... Hollow fiber membrane 26 ... Hollow fiber membrane bundle 28 ... Upper end support 30 ... Water collection room 32 ... Communication hole in upper end support 34 ... Treated water piping 36 ... Support member 38 ... Bottom plate 40 ... Support rod 42 ... Connecting rod 44 ... Space section 46 ... Discharge port for suspended substances 48 ... Water to be treated 50 ... Inlet of treated water 52 ... Outlet of treated water 56 ... Air nozzle 60 ... Treated water 62 ... Paddle
Claims (2)
し、前記中空糸膜の上端を上端支持部に支持すると共に
その下端を下端支持部に支持し、前記ケーシング内に供
給した被処理水を前記中空糸膜で濾過すると共に、前記
濾過により中空糸膜の表面に付着した被処理水中の懸濁
物質を洗浄手段により剥離させてケーシング外に排出す
る中空糸型膜モジュールに於いて、 前記ケーシング内で前記下端支持部の下方に空間部と懸
濁物質の排出口を形成し、前記下端支持部を前記多数の
中空糸膜の束ごとに分割させて中空糸膜から剥離した懸
濁物質が前記空間部に沈降する通路を形成すると共に、
前記分割した中空糸膜の束の各下端支持部を放射状の連
結棒で支持し、前記連結棒の中心を支持棒で支持し、該
支持棒を正転・逆転させることにより前記中空糸膜の束
をツイストさせるツイスト機構を備えたことを特徴とす
る中空糸型膜モジュール。1. A large number of hollow fiber membranes are housed in a casing, the upper ends of the hollow fiber membranes are supported by an upper end supporting portion and the lower ends thereof are supported by a lower end supporting portion, and the hollow fiber membranes are supplied into the casing. In the hollow fiber membrane module, which filters the water through the hollow fiber membrane and discharges the suspended substance in the water to be treated adhered to the surface of the hollow fiber membrane by the filtration by the washing means to the outside of the casing, A suspension formed by forming a space portion and a discharge port for suspended substances in the casing below the lower end supporting portion, and dividing the lower end supporting portion into bundles of the large number of hollow fiber membranes and separating from the hollow fiber membranes. While forming a passage for the substance to settle in the space ,
Each lower end support portion of the divided bundle of hollow fiber membranes is connected in a radial manner.
Supporting with a connecting rod, supporting the center of the connecting rod with a supporting rod,
The bundle of hollow fiber membranes can be formed by rotating the support rod in the forward / reverse direction.
A hollow fiber type membrane module comprising a twisting mechanism for twisting .
ズルを配置し、前記加圧エアを供給するエア配管を前記
支持棒内に配設して、エア配管と支持棒とを一体化させ
たことを特徴とする請求項１の中空糸型膜モジュール。2. An air nozzle for blowing pressurized air into the space.
The sluice is arranged and the air pipe for supplying the pressurized air is
Placed inside the support rod, the air pipe and the support rod are integrated.
The hollow fiber membrane module according to claim 1, characterized in that the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32381894A JP3376733B2 (en) | 1994-11-30 | 1994-11-30 | Hollow fiber membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32381894A JP3376733B2 (en) | 1994-11-30 | 1994-11-30 | Hollow fiber membrane module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08155276A JPH08155276A (en) | 1996-06-18 |
| JP3376733B2 true JP3376733B2 (en) | 2003-02-10 |
Family
ID=18158948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32381894A Expired - Fee Related JP3376733B2 (en) | 1994-11-30 | 1994-11-30 | Hollow fiber membrane module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3376733B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019103479A1 (en) * | 2017-11-23 | 2019-05-31 | 롯데케미칼 주식회사 | Water treatment apparatus |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU721064B2 (en) * | 1996-12-20 | 2000-06-22 | Evoqua Water Technologies Llc | Scouring method |
| KR100292189B1 (en) * | 1999-02-20 | 2001-06-01 | 박철휘 | Construction of membrane module |
| JP4699716B2 (en) * | 2004-07-07 | 2011-06-15 | 株式会社神鋼環境ソリューション | Hollow fiber membrane module and water treatment apparatus using the same |
| KR101180722B1 (en) * | 2010-01-28 | 2012-09-10 | 웅진코웨이주식회사 | Hollow fiber membrane module |
| JP5390499B2 (en) * | 2010-11-25 | 2014-01-15 | 株式会社神鋼環境ソリューション | Hollow fiber membrane module and water treatment apparatus using the same |
| DE102013218188B3 (en) * | 2013-09-11 | 2014-12-04 | membion Gmbh | Membrane filter and method for filtering |
| JP6319493B1 (en) * | 2017-03-29 | 2018-05-09 | 栗田工業株式会社 | Cleaning method for hollow fiber membrane module |
-
1994
- 1994-11-30 JP JP32381894A patent/JP3376733B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019103479A1 (en) * | 2017-11-23 | 2019-05-31 | 롯데케미칼 주식회사 | Water treatment apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08155276A (en) | 1996-06-18 |
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