JP3119773B2 - Membrane element - Google Patents
Membrane elementInfo
- Publication number
- JP3119773B2 JP3119773B2 JP05281552A JP28155293A JP3119773B2 JP 3119773 B2 JP3119773 B2 JP 3119773B2 JP 05281552 A JP05281552 A JP 05281552A JP 28155293 A JP28155293 A JP 28155293A JP 3119773 B2 JP3119773 B2 JP 3119773B2
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- support plate
- liquid
- membrane support
- flow path
- 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 - Lifetime
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【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 for a membrane separation apparatus used for filtering or concentrating water or wastewater.
【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 In general, a membrane separation apparatus used in a treatment facility such as tap water or waste water 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。[0003] The membrane element is, for example, as shown in FIGS. 3 and 4. The membrane element is formed on a rectangular flat membrane support plate 1 made of vinyl chloride or the like. A permeated liquid flow path 3 communicating with the suction pipe 2 is formed. Then, a filtration membrane 4 having an organic filtration membrane formed on the surface of a non-woven fabric or the like is arranged so as to cover the surface of the membrane support plate 1, and is fused or fixed to the membrane support plate 1 at the periphery of the filtration membrane 4. . 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 gap serving as a permeate flow path between the filtration membrane 4 and the membrane support plate 1 is formed by the spacer 5. Has formed. In operation, a negative pressure is applied to the permeate flow path 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, the conventional membrane element has a structure in which the spacer 5 prevents the filtration membrane 4 and the membrane support plate 1 from adhering to each other as described above. There was a problem that the cost was high. In addition, even if the spacer 5 is interposed, there is a problem that a sufficient permeated liquid flow path 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。An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a membrane element which can easily flow a membrane-permeable liquid, can easily filter a liquid to be treated, and can be manufactured economically.
【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、ケーシング内に適当な間
隔で配置して槽内の被処理液中に浸漬するものであっ
て、膜支持板にそ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、膜支持板の表面を覆
って濾過膜を設けた膜エレメントにおいて、透過液流路
を、膜支持板の幅方向に長く開口して透過液吸引管に連
通する集液部と、膜支持板の高さ方向に長く開口して集
液部に連通する複数のスリットで構成し、膜支持板の表
面に集液部およびスリットに連通するとともに、相互に
連通する複数の溝部を形成したものである。In order to solve the above problems, a membrane element according to the present invention is provided in a casing with a suitable space.
And immersed in the liquid to be treated in the tank.
To open the surface of the membrane support plate and aspirate the permeate.
Form a permeate flow path communicating with the tube to cover the surface of the membrane support plate.
In a membrane element provided with a filtration membrane,
Open in the width direction of the membrane support plate and communicate with the permeate suction pipe.
Through the liquid collecting part that passes through and a long opening in the height direction of the membrane support plate.
Composed of multiple slits communicating with the liquid part, the surface of the membrane support plate
The surface communicates with the liquid collection section and the slit, and
A plurality of communicating grooves are formed .
【０００７】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。In the membrane element of the present invention, a spacer for forming a predetermined gap between the membrane support plate and the filtration membrane is provided on the surface of the membrane support plate.
【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 support plate is provided with a permeate flow path comprising a liquid collection part and a slit communicating with the permeate suction pipe, so that the membrane permeate flows into the slit or the liquid collection part, 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, by providing a plurality of grooves communicating with the permeate flow path on the surface of the membrane support plate, the permeate flows through the grooves or directly flows into the permeate flow path, and the inside of the membrane element is formed. Can flow easily.
【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。[0010] Further, by providing a spacer for forming a predetermined gap between the membrane support plate and the organic filtration membrane on the surface of the membrane support plate, a permeate flow path is also ensured by this. 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 Hereinafter, a membrane element according to an embodiment of the present invention will be described with reference to a perspective view of FIG. 1 and a longitudinal sectional view of FIG. Since the membrane element of this embodiment is almost the same as the conventional membrane element described above with reference to FIGS.
Members having the same configuration and operation are denoted by the same reference numerals, and description thereof is omitted. The difference between the membrane element of this embodiment and the conventional membrane element is that the permeated liquid flow path 3 is connected to the permeated liquid suction pipe 2 by a liquid collecting portion 3a in the width direction of the membrane element.
And two slits 6 in the direction intersecting with the liquid collecting part 3a, and a plurality of grooves 7 communicating with the permeate flow path 3 are provided on the surface of the membrane support 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 configuration 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 filtration membrane 4 and the filtration membrane 4 is separated. The permeated liquid flows through the spacer 5 into the groove 7 or the slit 6 on the surface of the membrane support plate 1 or into the liquid collecting part 3a. The permeated liquid flowing into the groove 7 flows into the slit 6, flows into the permeated liquid suction pipe 2 through the liquid collecting part 3a, and is taken out of the membrane element from the suction pipe 2. At this time, even when the suction negative pressure is applied, the groove 7 and the slit 6 are formed on the surface of the membrane support plate 1, and a predetermined distance is provided between the membrane support plate 1 and the filtration membrane 4 by the spacer 5. Is formed, so that the permeated liquid easily flows through the membrane support plate 1.
And flows into the permeated liquid suction pipe 2 through the liquid collecting part 3a. As described above, since the permeated liquid channel is secured,
The liquid to be treated can be filtered smoothly 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 configuration, the permeate flow path 3 and the groove 7 may be formed on the surface of the membrane support plate 1, or the permeate flow path 3 may be provided on the surface of the membrane support plate 1, The spacer 7 may be interposed between the membrane support plate 1 and the filtration membrane 4 without forming the filter. In addition, slit 6
May be provided so as to penetrate the membrane support plate 1 in the thickness direction, and the number, length, direction and the like can be appropriately set. Further, the groove 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 support plate 1 as shown in the figure,
Alternatively, each of the grooves 7 may be inclined, and
You only have to communicate with.
【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 suction negative pressure is applied to the membrane support plate by a simple structure in which a permeate flow path comprising a liquid collecting part and a slit communicating with the permeate suction pipe is provided. In this case, since the flow path of the permeated liquid can be secured, solid-liquid separation can be easily performed by the membrane element, and the production of the membrane element is also easy.
【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 communicating with the permeate flow path on the surface of the membrane support plate, more permeate flow paths are ensured and solid-liquid separation can be easily performed by the membrane element. Can be.
【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 support plate, a flow path of the permeated liquid is secured between the membrane support plate and the organic filtration membrane, whereby solid-liquid separation by the membrane element is also facilitated. 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 partially cutaway perspective view showing a membrane element according to an embodiment of the present invention.
【図２】図１の膜エレメントの縦断面図である。FIG. 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。FIG. 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 DESCRIPTION OF SYMBOLS 1 Membrane support plate 2 Permeated liquid suction pipe 3 Permeated liquid flow path 3a Liquid collecting part 4 Filtration membrane 5 Spacer 6 Slit 7 Groove
───────────────────────────────────────────────────── 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 (56)参考文献 特開 平４−190835（ＪＰ，Ａ) 特開 昭64−7909（ＪＰ，Ａ) 特開 平３−94823（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B01D 63/08 B01D 63/00 510 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Masafumi Shiki 2-47, Shishitsuhigashi, Namiwa-ku, Osaka-shi, Osaka Kubota Co., Ltd. (56) References JP-A-4-190835 (JP, A) JP-A 64-7909 (JP, A) JP-A-3-94823 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B01D 63/08 B01D 63/00 510
Claims (2)
内の被処理液中に浸漬するものであって、膜支持板にそ
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、膜支持板の表面を覆って濾過膜を設け
た膜エレメントにおいて、透過液流路を、膜支持板の幅
方向に長く開口して透過液吸引管に連通する集液部と、
膜支持板の高さ方向に長く開口して集液部に連通する複
数のスリットで構成し、膜支持板の表面に集液部および
スリットに連通するとともに、相互に連通する複数の溝
部を形成したことを特徴とする膜エレメント。1. A tank disposed at an appropriate interval in a casing.
It is immersed in the liquid to be treated in the
Permeation that opens to the surface of the pipe and communicates with the permeate suction pipe
Form a liquid flow path and provide a filtration membrane covering the surface of the membrane support plate
The permeate flow path to the width of the membrane support plate
A liquid collecting part that opens long in the direction and communicates with the permeate suction pipe;
Multiple openings that open long in the height direction of the membrane support plate and communicate with the liquid collection section
The number of slits, the liquid collecting part and the surface of the membrane support plate
Multiple grooves that communicate with the slit and with each other
Membrane element, characterized in that part was formed.
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に記載の膜エレメント。2. The membrane element according to claim 1, wherein a spacer that forms a predetermined gap between the membrane support plate and the filtration membrane is provided on the surface of the membrane support 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 JPH07132214A (en) | 1995-05-23 |
| JP3119773B2 true 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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006027560A3 (en) * | 2004-09-10 | 2006-06-08 | Brightwater Engineering Ltd | Apparatus and method |
| JP2014149187A (en) * | 2013-01-31 | 2014-08-21 | Hitachi High-Technologies Corp | Automatic analyzer |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4902684B2 (en) | 2009-03-31 | 2012-03-21 | 株式会社日立プラントテクノロジー | Membrane cartridge in submerged membrane separator |
| CN101857302B (en) * | 2010-06-12 | 2012-07-25 | 江苏金山环保工程集团有限公司 | Novel submerged flat membrane element |
| JP5495129B2 (en) * | 2010-09-30 | 2014-05-21 | 株式会社日立製作所 | Membrane element, membrane module and membrane separation system |
| DK2818230T3 (en) | 2012-02-24 | 2021-01-04 | Toray Industries | SEPARATION MEMBRANE ELEMENT AND SEPARATION MEMBRANE MODULE |
-
1993
- 1993-11-11 JP JP05281552A patent/JP3119773B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006027560A3 (en) * | 2004-09-10 | 2006-06-08 | Brightwater Engineering Ltd | Apparatus and method |
| JP2014149187A (en) * | 2013-01-31 | 2014-08-21 | Hitachi High-Technologies Corp | Automatic analyzer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07132214A (en) | 1995-05-23 |
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