【発明の詳細な説明】［発明の技術分野］本発明は、濾過装置、特に中空糸膜フィルタを用いた中
空糸膜濾過装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a filtration device, particularly a hollow fiber membrane filtration device using a hollow fiber membrane filter.
［発明の技術的背景とその問題点］原子力発電プラントにおいＣは、放！ＩＩ線低減対策と
して腐食生成物の発生の抑制とその除去を行なっている
。例えば、原子力発電ブラントで発生する放射線廃液や
一次冷却系の復水中に存在Ｊる懸濁物を分離除去するた
めに濾過装置行が用いられている。かかる濾過装置とし
て従来は粉末イオン交換樹脂のようなプリツー１−フィ
ルタを使用する方法、あるいは濾紙、濾布メンブレン膜
等の平膜型濾過フィルタを使用する方法、さらには晶結
金属、レラミック等の中空管型フィルタを使用する方法
等が行なわれている。[Technical background of the invention and its problems] In a nuclear power plant, C is released! As a measure to reduce II radiation, we are suppressing the generation of corrosion products and removing them. For example, filtration equipment lines are used to separate and remove suspended matter present in radioactive waste liquid generated in nuclear power generation blunts and condensate water in the primary cooling system. Conventionally, such a filtration device uses a pre-filter such as a powdered ion exchange resin, a flat membrane filter such as a filter paper or a filter cloth membrane membrane, and a method using a filter made of crystalline metal, relamic, etc. Methods such as using a hollow tube filter have been used.
しかしながら、粉末イオン交換樹脂を使用した濾過方法
では樹脂廃棄物が多量に発生し、また平膜型フィルタあ
るいは中空管型フィルタを使用したものでは、大流量の
循環流量が必要なため系統構成が複雑となり設備費が大
きくなるという不具合がある。ざらには二次廃棄物が発
生し、濾過効率も低く、スペースおよび設備費等も嵩む
という不具合があった。However, filtration methods that use powdered ion exchange resin generate large amounts of resin waste, and those that use flat membrane filters or hollow tube filters require a large circulation flow rate, making the system configuration difficult. There is a problem that it becomes complicated and the equipment cost increases. The problem with this method was that it generated secondary waste, had low filtration efficiency, and increased space and equipment costs.
そこで、最近中空糸膜フィルタを用いた中空糸膜濾過装
置により廃液中の懸濁物を分離除去する方法が採用され
るようになってきた。第１図は、本発明の先行技術の中
空糸膜フィルタの概略構成図令示すもので、同図に示す
ように容器本体１内に設けた仕切板３にほぼＵ字型の中
空糸膜フィルタ２を取付固定している。そして、この容
器本体１の側面の流入口−には廃液を流入する廃液供給
管４を設け、また容器本体１の上端部の流出口には供給
された廃液を中空糸膜フィルタ２で濾過した後処理液を
排出−りる処理液排出管５を設けている。Therefore, recently, a method of separating and removing suspended matter in waste liquid using a hollow fiber membrane filtration device using a hollow fiber membrane filter has been adopted. FIG. 1 shows a schematic configuration diagram of a hollow fiber membrane filter according to the prior art of the present invention. As shown in the figure, a substantially U-shaped hollow fiber membrane filter 2 is installed and fixed. A waste liquid supply pipe 4 through which waste liquid flows is provided at the inlet on the side of the container body 1, and a waste liquid supplied to the outlet at the upper end of the container body 1 is filtered with a hollow fiber membrane filter 2. A processing liquid discharge pipe 5 for discharging the post-processing liquid is provided.
また処理液排出管５にはこの排出管より分岐し中空糸膜
フィルタ２の中空部に逆洗用の加圧気体を供給する気体
供給管６を設けている。さらに容器本体１の下端部の流
出口には処理液を排出した後の濃縮廃液を排出する濃縮
廃液排出管７が設けられている。また仕切板３の取イ」
位置の下方にはオーバーフロー管８が配設されている。Further, the processing liquid discharge pipe 5 is provided with a gas supply pipe 6 that branches from the discharge pipe and supplies pressurized gas for backwashing to the hollow portion of the hollow fiber membrane filter 2. Furthermore, a concentrated waste liquid discharge pipe 7 is provided at the outlet at the lower end of the container body 1 to discharge the concentrated waste liquid after discharging the processing liquid. Also, remove the partition plate 3.
An overflow pipe 8 is arranged below the position.
そして前記８管には図に示すように、それぞれ開閉弁９
，１０．１１，１２．１３が設けられている。As shown in the figure, each of the eight pipes has an on-off valve 9.
, 10.11, 12.13 are provided.
しかして、このＪ：うな中空糸膜濾過装置では、容器本
体１内に廃液供給管４を介して廃液を一定圧力で流入さ
せつつ、中空糸膜フィルタ２の濾過差圧が予め定められ
た値となるまで濾過が行なわれ、この間処理液は処理液
排出管５から排出される。Therefore, in this J: hollow fiber membrane filtration device, while the waste liquid is allowed to flow into the container main body 1 through the waste liquid supply pipe 4 at a constant pressure, the filtration differential pressure of the hollow fiber membrane filter 2 is set to a predetermined value. Filtration is performed until , and during this time the processing liquid is discharged from the processing liquid discharge pipe 5.
そして、その後、気体供給管６から中空糸膜フィルタ２
の中空部に加圧気体が供給され、中空糸膜フィルタ２の
外側に付着した懸濁物の剥削除去に続いて濃縮廃液の排
出が行なわれた後再び廃液供給管４から新な廃液が容器
本体１内に供給され前述した廃液の濾過が繰り返し行な
われる。Then, from the gas supply pipe 6 to the hollow fiber membrane filter 2
Pressurized gas is supplied to the hollow part, and after removing the suspended matter adhering to the outside of the hollow fiber membrane filter 2, the concentrated waste liquid is discharged, and then a new waste liquid is supplied from the waste liquid supply pipe 4 to the container. The above-described waste liquid supplied into the main body 1 is repeatedly filtered.
ところで、原子力発電プラン１−にお【ノる立地条件等
から廃液濾過装置の設置されるスペースが制限され、ま
た容器本体自体も縦長構造のものの方が横長構造のもの
より構造上右利であることは知られている。しかし先行
技術の中空糸＋１９ 濾過装置ドは濾過面積を大きくするため内径が０．１〜０．５ｍｍ
φのような糸径の小さな中空糸膜フィルタが用いられて
いるので、その長さは圧損等からみて約１ｍが限度と考
えられていた。そのため、廃液濾過装置としては相当な
スペースを必要としており、このスペースをできるだけ
少くするには前述のような縦長構造の中空糸膜濾過装置
の開発が望まれていた。By the way, the space in which the waste liquid filtration device can be installed is limited due to the locational conditions mentioned in Nuclear Power Generation Plan 1-1, and the vertical structure of the container itself is structurally more advantageous than the horizontal structure. This is known. However, the prior art hollow fiber +19 filtration device has an inner diameter of 0.1 to 0.5 mm to increase the filtration area.
Since a hollow fiber membrane filter with a small thread diameter such as φ is used, its length was thought to be limited to about 1 m in terms of pressure loss and the like. Therefore, a waste liquid filtration device requires a considerable amount of space, and in order to reduce this space as much as possible, it has been desired to develop a hollow fiber membrane filtration device with a vertically elongated structure as described above.
［発明の目的］本発明は、上記事情に鑑みてなされたもので、その目的
は、限られた場所に設置するのに適するとともに高い濾
過効率を有し、かつコンパクトな中空糸膜濾過装置を提
供するにある。[Object of the invention] The present invention has been made in view of the above circumstances, and its object is to provide a compact hollow fiber membrane filtration device that is suitable for installation in a limited place, has high filtration efficiency, and is compact. It is on offer.
［発明の概要］本発明は、上記目的を達成Ｊるために、少くとも流入、
口と流出口を設けた容器本体内に仕切板を配設し、この
仕切板に１個または複数個直列接続された中空糸膜モジ
ュールを固定してなる中空糸膜濾過装置に関するもので
ある。そして、上記中空糸膜モジュールは取水管の両端
に配設した端部材と前記取水管の周囲に多数本の中空糸
膜フィルタを配置するとともにこの中空糸膜フィルタの
両端を解放状態で前記端部材に接看固定したものである
。[Summary of the Invention] In order to achieve the above object, the present invention provides at least an inflow,
The present invention relates to a hollow fiber membrane filtration device in which a partition plate is disposed within a container body provided with an opening and an outlet, and one or more hollow fiber membrane modules connected in series are fixed to the partition plate. The hollow fiber membrane module has an end member disposed at both ends of a water intake pipe and a large number of hollow fiber membrane filters arranged around the water intake pipe, and both ends of the hollow fiber membrane filter are left open to the end member. It was fixed at the same time.
［発明の実施例コ本発明の実施例を図面を参照して説明する。[Embodiments of the invention]Embodiments of the present invention will be described with reference to the drawings.
第２図は、本発明の一実施例の概略図を示すもので、第
１図と同一個所には同−旬号を附して説明する。同図に
示すように、容器本体１４内に設けた仕切板１７に中空
糸膜モジトル２個を縦方向に直列接続したモジュール結
合体を取付固定している。そして、この容器本体１４の
側面の流入口には廃液を流入する廃液供給管４を設け、
また容器本体１４の上端部の流出口には供給された廃液
を中空糸膜ノイルタ１９で濾過した後処理液を排出覆る
処理液排出管５を設けている。この排出管５より分岐し
て中空糸膜フィルタ１９の中空部に逆洗用の加圧気体を
供給する気体供給管６を設けている。さらに容器本体１
４の下端部の流出口には処理液を排出した後の濃縮廃液
を排出づる濃縮廃液排出管７が設けられている。また、
仕切板１７の取付位置の下方にはオーバーフロー管８が
配設されており、前記８管には図に示すように、それぞ
れ開閉弁９．１０，１１，１２．１３が設けられている
。FIG. 2 shows a schematic diagram of an embodiment of the present invention, and the same parts as those in FIG. 1 will be described with the same reference numbers attached. As shown in the figure, a module assembly in which two hollow fiber membrane modules are vertically connected in series is attached and fixed to a partition plate 17 provided in the container body 14. A waste liquid supply pipe 4 through which waste liquid flows is provided at the inlet on the side of the container body 14,
Further, at the outlet at the upper end of the container body 14, a treated liquid discharge pipe 5 is provided to discharge and cover the treated liquid after filtering the supplied waste liquid with the hollow fiber membrane filter 19. A gas supply pipe 6 is provided which branches from the discharge pipe 5 and supplies pressurized gas for backwashing to the hollow portion of the hollow fiber membrane filter 19. Furthermore, the container body 1
A concentrated waste liquid discharge pipe 7 for discharging concentrated waste liquid after discharging the processing liquid is provided at the outlet at the lower end of the filter 4. Also,
An overflow pipe 8 is disposed below the mounting position of the partition plate 17, and each of the eight pipes is provided with on-off valves 9.10, 11, and 12.13, as shown in the figure.
しかして、本実施例の中空糸膜モジュール１５は、第３
図に示すように取水管１８の両端を解放状態で端部材２
０または２１に固定するとともにこの取水管１８の周囲
に直線状でその外周に微孔を形成した中空糸膜フィルタ
１９を多数配置し、この中空糸膜フィルタ１９を端部材
２０または２１に接着固定した構成となっている。この
ように構成された中空糸膜モジュール１５を複数個（図
では２個）縦方向に図のように適当な空間をあけて接続
し、隣接する中空糸膜モジュール１５，１５の両端部材
２１．２１を固定金具１６で固定する。また、中空糸膜
モジュール１５を複数個縦方向に接続したモジュール結
合体の最」一端の端部材２０（以下端栓という）は仕切
板１７と結合するように幅広の端部を形成しており、ま
た、そのモジュール結合体の最下端にも固定金具２２を
設ける。そして端部材２１と固定金具１６またｉ２２並
びに端栓２０と仕切板１７との間にシール材２３を設け
て廃液と処理液とが混合しないようにする。Therefore, the hollow fiber membrane module 15 of this embodiment has the third
As shown in the figure, with both ends of the water intake pipe 18 open, the end member 2
0 or 21, a large number of linear hollow fiber membrane filters 19 with micropores formed on the outer periphery are arranged around the water intake pipe 18, and the hollow fiber membrane filters 19 are adhesively fixed to the end member 20 or 21. The structure is as follows. A plurality of hollow fiber membrane modules 15 configured as described above (two in the figure) are connected vertically with an appropriate space as shown in the figure, and both end members 21. 21 is fixed with a fixing fitting 16. Further, the end member 20 (hereinafter referred to as an end plug) at the very end of the module assembly in which a plurality of hollow fiber membrane modules 15 are connected in the longitudinal direction forms a wide end so as to be connected to the partition plate 17. A fixing fitting 22 is also provided at the lowermost end of the module assembly. A sealing material 23 is provided between the end member 21 and the fixture 16 or i22, as well as between the end plug 20 and the partition plate 17, to prevent the waste liquid and the processing liquid from mixing.
次に、本実施例の濾過作用について説明する。Next, the filtration action of this embodiment will be explained.
流入口より流入された廃液は中空糸膜フィルタ１９の外
側よや中空糸膜フィルタ１９を通してその中側に水のみ
を浸透させ、廃液中の分散固形物は中空糸膜表面で捕捉
されることにより固液分離が行なわれる。中空糸膜フィ
ルタＴ９内に浸透した水の一部は中空糸膜フィルタ１゛
９の中空部を通って固定金具１６および２２の空間部に
流れ取水管１８を通って端栓２０上に取り出され、また
、他の一部は端栓２０上に取り出される。そして、これ
らの水は処理液排出管５を経て装置外へ排出される。そ
して、濾過操作は容器本体１４内に廃液供給管４を介し
て廃液を一定圧力で流入させつつ、中空糸膜フィルタ１
９の濾過差圧が予め定められた伯となるまで濾過が行な
われ、この間処理液は処理液排出管５を介して排出され
る。The waste liquid flowing in from the inlet port passes through the hollow fiber membrane filter 19 from the outside to the inside of the hollow fiber membrane filter 19 and only water permeates therein, and the dispersed solids in the waste liquid are captured on the surface of the hollow fiber membrane. Solid-liquid separation takes place. A part of the water that has permeated into the hollow fiber membrane filter T9 flows through the hollow part of the hollow fiber membrane filter 1'9 into the spaces between the fixing fittings 16 and 22, passes through the water intake pipe 18, and is taken out onto the end plug 20. , and another part is taken out onto the end plug 20. Then, these waters are discharged to the outside of the apparatus through the treated liquid discharge pipe 5. Then, the filtration operation is carried out by flowing the waste liquid into the container body 14 through the waste liquid supply pipe 4 at a constant pressure, while the hollow fiber membrane filter 1
Filtration is performed until the filtration differential pressure 9 reaches a predetermined value, and during this time the processing liquid is discharged through the processing liquid discharge pipe 5.
そして、その後、中空糸膜フィルタ１９の濾過差圧が上
記所定値以下となると、濾過操作は中止され中空糸膜フ
ィルタ１９の逆洗操作が行なわれ・る。この逆洗は濾過
操作とは逆に行なわれる。すなわち、図示しない気体供
給源から気体供給管６を介して中空糸膜フィルタ１９の
内側から外側に水または空気を圧送させて中空糸膜フィ
ルタ１９の外表面に付着した分散固形物を除去する。こ
のとき中空糸膜フィルタ１９の外側に形成した微孔から
気泡が発生するので洗浄効果を高めることになる。そし
て、洗浄が終れば再び廃液供給管４ｈ）ら新たな廃液が
容器本体１４内に供給され前述したにうにして廃液の″
濾過が繰返して行なわれる。Thereafter, when the filtration differential pressure of the hollow fiber membrane filter 19 becomes less than the predetermined value, the filtration operation is stopped and the hollow fiber membrane filter 19 is backwashed. This backwashing is performed in reverse to the filtration operation. That is, water or air is force-fed from the inside of the hollow fiber membrane filter 19 to the outside of the hollow fiber membrane filter 19 via the gas supply pipe 6 from a gas supply source (not shown) to remove the dispersed solid matter adhering to the outer surface of the hollow fiber membrane filter 19. At this time, air bubbles are generated from the micropores formed on the outside of the hollow fiber membrane filter 19, thereby enhancing the cleaning effect. When the cleaning is completed, new waste liquid is again supplied into the container body 14 from the waste liquid supply pipe 4h) and the waste liquid is removed as described above.
Filtration is repeated.
なお、以上の説明から明らかなように中空糸膜モジュー
ル１５は１個のみでも廃液の濾過作用を秦するものであ
る。また、上記説明では原子力発電プラントにＪ３ける
廃液についてなしたが、他のプラントにおける廃液ある
いは懸濁液を有する液体の固液分離に適用できることは
勿論のことである。Incidentally, as is clear from the above description, even one hollow fiber membrane module 15 can perform the filtration action of the waste liquid. Furthermore, although the above description has been made regarding waste liquid in a J3 nuclear power plant, it is of course applicable to solid-liquid separation of waste liquid or liquid having suspension in other plants.
［発明の効果］本発明によれば、中空糸膜モジュールを複数個直列接続
しても中空糸膜フィルタの圧損の影響を受けることがな
く１本の中空糸膜フィルタと同じ性能が得られるので、
中空糸Ｂ！濾過装置を縦長構造にすることができる。そ
の結果、スペースを有効に利用することができ、さらに
、取水管を配設することにより取水効果を上げることが
できる。[Effects of the Invention] According to the present invention, even if a plurality of hollow fiber membrane modules are connected in series, the same performance as a single hollow fiber membrane filter can be obtained without being affected by the pressure drop of the hollow fiber membrane filter. ,
Hollow fiber B! The filtration device can have a vertical structure. As a result, space can be used effectively, and water intake efficiency can be increased by arranging water intake pipes.
また、洗浄時には中空糸膜フィルタの微孔から気泡また
は水を吹き出づことにより短時間で多数の中空糸膜フィ
ルタの洗浄を行なうことができる。Furthermore, during cleaning, a large number of hollow fiber membrane filters can be cleaned in a short time by blowing out air bubbles or water from the micropores of the hollow fiber membrane filter.
第１図は本発明の先行技術の中空糸膜濾過装置の概略構
成図、第２図は本発明の一実施例の概略構成図、第３図
は第２図の中空糸膜モジュールを説明するための断面図
である。４・・・廃液供給管５・・・処理液排出管６・・・気体供給管７・・・濃縮廃液排出管１４・・・容器本体１５・・・中空糸膜モジュール１６．２２・・・固定金具１７・・・仕切板１８・・・取水管１９・・・中空糸膜フィルタ２０・・・端栓２１・・・端部材２３・・・シール月代理人 弁理士 猪 股 祥 晃（はが１名）第 １
図第 ２ 図第３図？Ｄ？３FIG. 1 is a schematic configuration diagram of a prior art hollow fiber membrane filtration device of the present invention, FIG. 2 is a schematic configuration diagram of an embodiment of the present invention, and FIG. 3 explains the hollow fiber membrane module of FIG. 2. FIG. 4... Waste liquid supply pipe 5... Treated liquid discharge pipe 6... Gas supply pipe 7... Concentrated waste liquid discharge pipe 14... Container body 15... Hollow fiber membrane module 16.22... Fixing fittings 17...Partition plate 18...Intake pipe 19...Hollow fiber membrane filter 20...End plug 21...End member 23...Seal Tsuki agent Patent attorney Akira Inomata (1 person) 1st
Figure 2 Figure 3? D? 3
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6218084AJPS60206405A (en) | 1984-03-31 | 1984-03-31 | Hollow fiber membrane filtration device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6218084AJPS60206405A (en) | 1984-03-31 | 1984-03-31 | Hollow fiber membrane filtration device |
| Publication Number | Publication Date |
|---|---|
| JPS60206405Atrue JPS60206405A (en) | 1985-10-18 |
| JPH0563207B2 JPH0563207B2 (en) | 1993-09-10 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6218084AGrantedJPS60206405A (en) | 1984-03-31 | 1984-03-31 | Hollow fiber membrane filtration device |
| Country | Link |
|---|---|
| JP (1) | JPS60206405A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60244306A (en)* | 1984-05-21 | 1985-12-04 | Mitsubishi Rayon Co Ltd | Hollow yarn filter module |
| JPS61242606A (en)* | 1985-04-18 | 1986-10-28 | Toshiba Corp | filter device |
| JPS62155907A (en)* | 1985-12-27 | 1987-07-10 | Toshiba Corp | Hollow fiber membrane filter device |
| JP2008119590A (en)* | 2006-11-10 | 2008-05-29 | Japan Organo Co Ltd | Hollow fiber membrane filter cartridge and its manufacturing method |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60244306A (en)* | 1984-05-21 | 1985-12-04 | Mitsubishi Rayon Co Ltd | Hollow yarn filter module |
| JPS61242606A (en)* | 1985-04-18 | 1986-10-28 | Toshiba Corp | filter device |
| JPS62155907A (en)* | 1985-12-27 | 1987-07-10 | Toshiba Corp | Hollow fiber membrane filter device |
| JP2008119590A (en)* | 2006-11-10 | 2008-05-29 | Japan Organo Co Ltd | Hollow fiber membrane filter cartridge and its manufacturing method |
| Publication number | Publication date |
|---|---|
| JPH0563207B2 (en) | 1993-09-10 |
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| US4668401A (en) | Hollow-fiber filter module and filtration method using the same | |
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| JPH09103655A (en) | Hollow fiber membrane filter | |
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| JP3212816B2 (en) | Combined filtration and desalination equipment | |
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| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |