JPH07132214A - Membrane element - Google Patents
Membrane elementInfo
- Publication number
- JPH07132214A JPH07132214A JP28155293A JP28155293A JPH07132214A JP H07132214 A JPH07132214 A JP H07132214A JP 28155293 A JP28155293 A JP 28155293A JP 28155293 A JP28155293 A JP 28155293A JP H07132214 A JPH07132214 A JP H07132214A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- permeate
- membrane element
- supporting plate
- liquid
- 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
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、上水や排水等の濾過ま
たは濃縮に用いられる膜分離装置の膜エレメントに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a membrane element of a membrane separation device used for filtering or concentrating tap water or waste water.
【０００２】[0002]
【従来の技術】一般に、上水や排水等の処理施設におい
て用いられる膜分離装置は、ケーシング内に複数枚の膜
エレメントを適当な間隔で配置しており、槽内の被処理
液中に浸漬された状態において、膜エレメントにより被
処理液を濾過するように構成されている。2. Description of the Related Art Generally, a membrane separation device used in a treatment facility for tap water, waste water, etc. has a plurality of membrane elements arranged at appropriate intervals in a casing and immersed in a liquid to be treated in a tank. In this state, the liquid to be treated is filtered by the membrane element.
【０００３】膜エレメントは、例えば図３および図４に
示したようなものであり、塩化ビニル等で形成した矩形
平板状の膜支持板１に、膜支持板１の表面に開口すると
ともに透過液吸引管２に連通する透過液流路３を形成し
ている。そして、膜支持板１の表面を覆って、不織布な
どの表面に有機濾過膜を形成した濾過膜４を配置し、濾
過膜４の周縁部において膜支持板１に融着または接着固
定している。また、濾過膜４と膜支持板１との間にネッ
トやフェルトなどのスペーサ５を介装し、このスペーサ
５によって濾過膜４と膜支持板１との間に透過液流路と
なる間隙を形成している。そして、運転時には、透過液
吸引管２を通して透過液流路３に吸引負圧を与えること
により、濾過膜４で被処理液を濾過している。The membrane element is, for example, as shown in FIGS. 3 and 4, and is formed in a rectangular flat plate-shaped membrane support plate 1 made of vinyl chloride or the like, which is opened on the surface of the membrane support plate 1 and which has a permeated liquid. A permeate flow path 3 communicating with the suction pipe 2 is formed. Then, the filtration membrane 4 having the organic filtration membrane formed on the surface of the non-woven fabric or the like is arranged so as to cover the surface of the membrane support plate 1, and the periphery of the filtration membrane 4 is fused or adhered and fixed to the membrane support plate 1. . In addition, a spacer 5 such as a net or felt is interposed between the filtration membrane 4 and the membrane support plate 1, and a spacer serving as a permeate flow path is provided between the filtration membrane 4 and the membrane support plate 1 by the spacer 5. Is forming. During operation, a negative suction pressure is applied to the permeate flow passage 3 through the permeate suction pipe 2 to filter the liquid to be treated by the filtration membrane 4.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
膜エレメントは、上記したようにスペーサ５によって濾
過膜４と膜支持板１との密着を防止する構成であるた
め、製作工程が複雑になり、コストが高くなるという問
題があった。また、スペーサ５を介装しても、十分な透
過液流路が得られないという問題があった。However, in the conventional membrane element, since the spacer 5 prevents the filter membrane 4 and the membrane supporting plate 1 from adhering to each other as described above, the manufacturing process becomes complicated. There was a problem of high cost. Further, even if the spacer 5 is interposed, there is a problem that a sufficient permeated liquid channel cannot be obtained.
【０００５】本発明は上記問題を解決するもので、膜透
過液が流れやすく、被処理液を容易に濾過できるととも
に、経済的に製作できる膜エレメントを提供することを
目的とするものである。The present invention is intended to solve the above problems, and an object of the present invention is to provide a membrane element which allows a membrane permeate to flow easily, a liquid to be treated can be easily filtered, and which can be economically manufactured.
【０００６】[0006]
【課題を解決するための手段】上記問題を解決するため
に、本発明の膜エレメントは、膜支持板の表面を覆って
濾過膜を設け、膜支持板に、膜支持板の表面に開口する
とともに透過液吸引管に連通する透過液流路を形成した
膜エレメントにおいて、前記透過液流路は、前記透過液
吸引管に連通する集液部とスリットで構成したものであ
る。In order to solve the above problems, in the membrane element of the present invention, a filtration membrane is provided so as to cover the surface of the membrane supporting plate, and the membrane supporting plate is opened on the surface of the membrane supporting plate. In addition, in the membrane element in which a permeate flow channel communicating with the permeate suction pipe is formed, the permeate flow channel is configured by a liquid collecting portion and a slit which communicate with the permeate suction pipe.
【０００７】また、本発明の膜エレメントは、膜支持板
の表面に、透過液流路に連通する複数の溝部を形成した
ものである。また、本発明の膜エレメントは、膜支持板
の表面に、膜支持板と濾過膜との間に所定の間隙を形成
するスペーサを設けたものである。Further, the membrane element of the present invention is one in which a plurality of groove portions communicating with the permeate flow passage are formed on the surface of the membrane supporting plate. Further, the membrane element of the present invention has a spacer provided on the surface of the membrane supporting plate to form a predetermined gap between the membrane supporting plate and the filtration membrane.
【０００８】[0008]
【作用】上記構成において、膜支持板に、透過液吸引管
に連通する集液部とスリットからなる透過液流路を設け
たことにより、膜透過液はスリットまたは集液部に流入
して、膜エレメントの内部を容易に流れることができ
る。したがって、膜エレメントによって容易に濾過を行
うことができる。In the above structure, the membrane supporting plate is provided with the permeate flow path consisting of the liquid collecting portion communicating with the permeate suction pipe and the slit, so that the membrane permeating liquid flows into the slit or the liquid collecting portion, It can easily flow inside the membrane element. Therefore, filtration can be easily performed by the membrane element.
【０００９】また、膜支持板の表面に、透過液流路に連
通する複数の溝部を設けたことにより、透過液は溝部を
経て、または直接透過液流路に流入して、膜エレメント
の内部を容易に流れることができる。Further, since a plurality of grooves communicating with the permeate flow passage are provided on the surface of the membrane support plate, the permeate flows into the permeate flow passage through the grooves or directly into the inside of the membrane element. Can be easily flowed.
【００１０】また、膜支持板の表面に、膜支持板と有機
濾過膜との間に所定の間隙を形成するスペーサを設けた
ことにより、これによっても透過液流路が確保され、透
過液は膜エレメントの内部を容易に流れることができ
る。Further, by providing a spacer for forming a predetermined gap between the membrane supporting plate and the organic filtration membrane on the surface of the membrane supporting plate, the permeated liquid flow path can be secured by this, and the permeated liquid is It can easily flow inside the membrane element.
【００１１】[0011]
【実施例】以下、本発明の一実施例の膜エレメントを図
１の斜視図および図２の縦断面図を参照しながら説明す
る。この実施例の膜エレメントは上で図３および図４を
用いて説明した従来の膜エレメントとほぼ同じなので、
同一の構成および作用を有する部材に同じ符号を付して
その説明を省略する。この実施例の膜エレメントが従来
の膜エレメントと異なるのは、透過液流路３を、透過液
吸引管２に連通する膜エレメントの幅方向の集液部３ａ
と、この集液部３ａと交わる方向の２本のスリット６と
で構成し、膜支持板１の表面に、透過液流路３に連通す
る複数の溝部７を設けた点である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A membrane element according to an embodiment of the present invention will be described below with reference to the perspective view of FIG. 1 and the vertical sectional view of FIG. Since the membrane element of this embodiment is substantially the same as the conventional membrane element described above with reference to FIGS. 3 and 4,
Members having the same configuration and action are assigned the same reference numerals and explanations thereof are omitted. The membrane element of this embodiment is different from the conventional membrane element in that the permeate flow path 3 communicates with the permeate suction tube 2 in the width direction of the membrane element.
And two slits 6 in a direction intersecting with the liquid collecting portion 3a, and a plurality of groove portions 7 communicating with the permeate liquid flow path 3 are provided on the surface of the membrane supporting plate 1.
【００１２】以下、上記構成における作用を説明する。
膜エレメントを被処理液中に浸漬し、吸引ポンプ等によ
り透過液吸引管２を通して透過液流路３に負圧を与える
と、被処理液は濾過膜４によって固液分離され、濾過膜
４を透過した液はスペーサ５を通って膜支持板１の表面
の溝部７またはスリット６または集液部３ａに流入す
る。溝部７へ流入した透過液は、スリット６へ流れ込ん
で、集液部３ａを経て透過液吸引管２へ流入し、この吸
引管２より膜エレメントの外部へ取り出される。このと
き、吸引負圧が与えられた時も、膜支持板１の表面に溝
部７およびスリット６が形成されているため、また、ス
ペーサ５によって膜支持板１と濾過膜４との間に所定の
間隙が形成されているため、透過液は容易に膜支持板１
の表面を流れ、集液部３ａを経て透過液吸引管２へ流入
する。このように、透過液流路が確保されているため、
膜エレメントによってスムーズに被処理液を濾過するこ
とができる。The operation of the above structure will be described below.
When the membrane element is immersed in the liquid to be treated and a negative pressure is applied to the permeate flow path 3 through the permeate suction pipe 2 by a suction pump or the like, the liquid to be treated is solid-liquid separated by the filter membrane 4 and the filter membrane 4 is separated. The permeated liquid passes through the spacer 5 and flows into the groove portion 7 or the slit 6 or the liquid collecting portion 3 a on the surface of the membrane supporting plate 1. The permeated liquid that has flowed into the groove portion 7 flows into the slit 6, flows into the permeated liquid suction pipe 2 through the liquid collecting portion 3a, and is taken out of the membrane element through the suction pipe 2. At this time, since the groove portion 7 and the slit 6 are formed on the surface of the membrane supporting plate 1 even when a negative suction pressure is applied, the spacers 5 provide a predetermined space between the membrane supporting plate 1 and the filtration membrane 4. Since the gap is formed, the permeated liquid easily passes through the membrane support plate 1.
Flowing through the surface of the permeation liquid and flowing into the permeated liquid suction tube 2 through the liquid collecting portion 3a. In this way, since the permeate flow channel is secured,
The liquid to be treated can be smoothly filtered by the membrane element.
【００１３】上記構成に代えて、膜支持板１の表面に透
過液流路３および溝部７を形成する構成としてもよい
し、膜支持板１の表面に透過液流路３を設け、溝部７を
形成することなく、膜支持板１と濾過膜４との間にスペ
ーサ７を介装する構成としてもよい。また、スリット６
は膜支持板１を厚み方向に貫通して設けてもよく、本
数、長さ、方向等も適宜設定できる。また、溝部７はエ
ッチング等の方法により形成することができ、図示した
ように矩形の膜支持板１の縦横の辺に平行であっても、
あるいは斜めであってもよく、各溝部７が透過液流路３
に連通していればよい。Instead of the above structure, the permeate flow channel 3 and the groove 7 may be formed on the surface of the membrane support plate 1, or the permeate flow channel 3 may be provided on the surface of the membrane support plate 1 to form the groove 7. The spacer 7 may be interposed between the membrane supporting plate 1 and the filtration membrane 4 without forming the. Also, the slit 6
May be provided so as to penetrate through the membrane supporting plate 1 in the thickness direction, and the number, length, direction and the like can be appropriately set. Further, the groove portion 7 can be formed by a method such as etching, and even if it is parallel to the vertical and horizontal sides of the rectangular membrane supporting plate 1 as shown in the drawing,
Alternatively, the grooves 7 may be slanted, and each groove 7 may have a permeated liquid flow path 3
It should be connected to.
【００１４】[0014]
【発明の効果】以上のように本発明によれば、膜支持板
に、透過液吸引管に連通する集液部とスリットからなる
透過液流路を設ける簡単な構成によって、吸引負圧をか
けた時も透過液の流路を確保できるので、膜エレメント
により容易に固液分離できるとともに、膜エレメントの
製作も容易である。As described above, according to the present invention, a negative suction pressure is applied by a simple structure in which a permeate flow path consisting of a slit and a liquid collecting portion communicating with the permeate suction tube is provided in the membrane support plate. Since the passage of the permeated liquid can be secured even when the membrane element is opened, solid-liquid separation can be easily performed by the membrane element and the membrane element can be easily manufactured.
【００１５】また、膜支持板の表面に、透過液流路に連
通する複数の溝部を設けることにより、さらに多くの透
過液の流路を確保し、膜エレメントによって容易に固液
分離を行うことができる。Further, by providing a plurality of grooves on the surface of the membrane support plate, which communicate with the permeate flow passages, more permeate passages can be secured and solid-liquid separation can be easily performed by the membrane element. You can
【００１６】また、膜支持板の表面にスペーサを設ける
ことにより、膜支持板と有機濾過膜との間に透過液の流
路が確保されるので、これによっても膜エレメントによ
る固液分離が容易になる。Further, by providing a spacer on the surface of the membrane supporting plate, a flow passage for the permeated liquid is secured between the membrane supporting plate and the organic filtration membrane, which also facilitates solid-liquid separation by the membrane element. become.
【図１】本発明の一実施例の膜エレメントを一部切り欠
いて示した斜視図である。FIG. 1 is a perspective view showing a membrane element according to an embodiment of the present invention with a part thereof cut away.
【図２】図１の膜エレメントの縦断面図である。2 is a longitudinal sectional view of the membrane element of FIG.
【図３】従来例の膜エレメントを示した斜視図である。FIG. 3 is a perspective view showing a conventional membrane element.
【図４】図３の膜エレメントの縦断面図である。4 is a longitudinal sectional view of the membrane element of FIG.
１ 膜支持板 ２ 透過液吸引管 ３ 透過液流路 ３ａ 集液部 ４ 濾過膜 ５ スペーサ ６ スリット ７ 溝部 1 Membrane Support Plate 2 Permeate Suction Tube 3 Permeate Flow Channel 3a Liquid Collection Part 4 Filtration Membrane 5 Spacer 6 Slit 7 Groove Part
フロントページの続き (72)発明者 師 正史 大阪府大阪市浪速区敷津東一丁目２番47号 株式会社クボタ内Front Page Continuation (72) Inventor Masafumi KUBOTA Co., Ltd. 2-47 Shikitsuhigashi, Naniwa-ku, Osaka City, Osaka Prefecture
Claims (3)
膜支持板に、膜支持板の表面に開口するとともに透過液
吸引管に連通する透過液流路を形成した膜エレメントに
おいて、前記透過液流路は、前記透過液吸引管に連通す
る集液部とスリットで構成したことを特徴とする膜エレ
メント。1. A filtration membrane is provided to cover the surface of the membrane support plate,
In a membrane element in which a permeate flow path communicating with the permeate suction pipe is formed in the membrane support plate, and the permeate flow path is communicated with the permeate suction pipe. Membrane element characterized by being configured with a slit.
る複数の溝部を形成したことを特徴とする請求項１記載
の膜エレメント。2. The membrane element according to claim 1, wherein a plurality of groove portions communicating with the permeate liquid flow path are formed on the surface of the membrane support plate.
の間に所定の間隙を形成するスペーサを設けたことを特
徴とする請求項１記載の膜エレメント。3. The membrane element according to claim 1, wherein a spacer that forms a predetermined gap between the membrane supporting plate and the filtration membrane is provided on the surface of the membrane supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05281552A JP3119773B2 (en) | 1993-11-11 | 1993-11-11 | Membrane element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05281552A JP3119773B2 (en) | 1993-11-11 | 1993-11-11 | Membrane element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07132214A true JPH07132214A (en) | 1995-05-23 |
| JP3119773B2 JP3119773B2 (en) | 2000-12-25 |
Family
ID=17640778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05281552A Expired - Lifetime JP3119773B2 (en) | 1993-11-11 | 1993-11-11 | Membrane element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3119773B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006027560A3 (en) * | 2004-09-10 | 2006-06-08 | Brightwater Engineering Ltd | Apparatus and method |
| EP2236196A2 (en) | 2009-03-31 | 2010-10-06 | Hitachi Plant Technologies, Ltd. | Membrane cartridge in immersion type membrane separation apparatus |
| CN101857302A (en) * | 2010-06-12 | 2010-10-13 | 江苏金山环保工程集团有限公司 | Novel submerged flat membrane element |
| JP2012076005A (en) * | 2010-09-30 | 2012-04-19 | Hitachi Plant Technologies Ltd | Membrane element, membrane module and membrane separation system |
| WO2013125506A1 (en) | 2012-02-24 | 2013-08-29 | 東レ株式会社 | Separation membrane element and separation membrane module |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6076108B2 (en) * | 2013-01-31 | 2017-02-08 | 株式会社日立ハイテクノロジーズ | Automatic analyzer |
-
1993
- 1993-11-11 JP JP05281552A patent/JP3119773B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006027560A3 (en) * | 2004-09-10 | 2006-06-08 | Brightwater Engineering Ltd | Apparatus and method |
| EP2236196A2 (en) | 2009-03-31 | 2010-10-06 | Hitachi Plant Technologies, Ltd. | Membrane cartridge in immersion type membrane separation apparatus |
| US8282822B2 (en) | 2009-03-31 | 2012-10-09 | Hitachi Plant Technologies, Ltd. | Membrane cartridge in immersion type membrane separation apparatus |
| CN101857302A (en) * | 2010-06-12 | 2010-10-13 | 江苏金山环保工程集团有限公司 | Novel submerged flat membrane element |
| JP2012076005A (en) * | 2010-09-30 | 2012-04-19 | Hitachi Plant Technologies Ltd | Membrane element, membrane module and membrane separation system |
| WO2013125506A1 (en) | 2012-02-24 | 2013-08-29 | 東レ株式会社 | Separation membrane element and separation membrane module |
| KR20140130429A (en) | 2012-02-24 | 2014-11-10 | 도레이 카부시키가이샤 | Separation membrane element and separation membrane module |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3119773B2 (en) | 2000-12-25 |
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