JPH0621730U - Hollow fiber membrane module - Google Patents
Hollow fiber membrane moduleInfo
- Publication number
- JPH0621730U JPH0621730U JP5984692U JP5984692U JPH0621730U JP H0621730 U JPH0621730 U JP H0621730U JP 5984692 U JP5984692 U JP 5984692U JP 5984692 U JP5984692 U JP 5984692U JP H0621730 U JPH0621730 U JP H0621730U
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- membrane module
- bundle
- yarn bundle
- 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.)
- Withdrawn
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
(57)【要約】
【目的】 中空糸状膜束に原料液が均一に供給され、さ
らに、濾過運転時の膜破断によるトラブルを未然に防止
できる、中空糸状膜モジュールを提供する。
【構成】 分割された中空糸状膜束のそれぞれの接着固
定部に結束帯の巻かれた部分が埋め込まれており、それ
ぞれの中空糸状膜束の接着固定部近傍にエッジ部の無い
断面構造を有する。
(57) [Summary] [PROBLEMS] To provide a hollow fiber membrane module capable of uniformly supplying a raw material liquid to a hollow fiber membrane bundle and further preventing problems due to membrane breakage during filtration operation. [Structure] A wound portion of a binding band is embedded in each adhesive fixing portion of a divided hollow fiber membrane bundle, and has a cross-sectional structure without an edge portion in the vicinity of the adhesive fixing portion of each hollow fiber membrane bundle. .
Description
【０００１】[0001]
本考案は、中空糸状膜モジュールの構造に関する。 The present invention relates to the structure of a hollow fiber membrane module.
【０００２】[0002]
中空糸状膜モジュールは、単位容積当たりの膜面積を大きくとれる事から、逆 浸透膜、限外濾過膜、精密濾過膜、ガス分離膜等に使用されている。近年では、 外圧で大口径のモジュールが半導体製造用の超純水製造用モジュールに使用され るようになってきた。しかし、外圧式で内径が７５ミリメートル以上の大口径の モジュールとなると、糸束内に原液が充分に入り込まない為に、実公昭６３−３ ０４８２号公報では糸束を分割する事が提案されている。また、特開昭６０−２ ３２２０７号公報では、接着部に仕切り板を埋め込んで、糸束を分割し、接着部 の収縮率を低下させ、接着部の強度を向上させる事が提案されている。 Hollow fiber membrane modules are used for reverse osmosis membranes, ultrafiltration membranes, microfiltration membranes, gas separation membranes, etc., because they allow a large membrane area per unit volume. In recent years, external pressure and large-diameter modules have come to be used as ultrapure water production modules for semiconductor production. However, in the case of an external pressure type module having an inner diameter of 75 mm or more and a large diameter, the undiluted solution will not sufficiently enter into the yarn bundle. There is. Further, Japanese Patent Laid-Open No. 60-232207 proposes to embed a partition plate in the bonded portion to divide the yarn bundle, reduce the shrinkage ratio of the bonded portion, and improve the strength of the bonded portion. .
【０００３】[0003]
仕切り板等で糸束を分割する場合、なるべくモジュールハウジング内部いっぱ いに糸束を拡げた方が原液が糸束内部に入りやすい。しかし、その様な製造方法 では、それぞれの糸束にエッジ部を作る事になり、外圧濾過の場合、そのエッジ 部に原液或いは濃縮液の流れが直接当たり、接着界面で中空糸の破断を生ずる事 がある。また、特に糸束が大きくなると、けん濁物質の多い流体を原液として使 用する場合に於いては、中空糸状膜束内部にけん濁物質が蓄積し、蓄積した部分 の膜が濾過に寄与しなく為、透過水量が減少する。さらに、けん濁物質の蓄積が 進行すると、中空糸状膜の間に固化し、逆洗、フラッシング等の際に中空糸状膜 が破壊する事がある。 When dividing a yarn bundle with a partition plate, it is easier for the stock solution to enter the yarn bundle if the yarn bundle is expanded as much as possible inside the module housing. However, in such a manufacturing method, an edge portion is formed in each yarn bundle, and in the case of external pressure filtration, the flow of the stock solution or the concentrated solution directly hits the edge portion, causing the hollow fiber to break at the adhesive interface. There is a thing. Also, especially when the yarn bundle becomes large, when a fluid containing many suspended substances is used as the stock solution, the suspended substances accumulate inside the hollow fiber membrane bundle, and the accumulated membrane contributes to filtration. The amount of permeated water is reduced due to the elimination Furthermore, as the accumulation of suspended substances progresses, it may solidify between the hollow fiber membranes, and the hollow fiber membranes may be destroyed during backwashing, flushing, or the like.
【０００４】[0004]
上記問題を解決する為の、本考案による中空糸状膜モジュールは、中空糸状膜 の糸束を分割した後のそれぞれの糸束の端部を結束帯で固定し、その結束帯ごと 中空糸状膜束端部が埋め込まれる様に遠心接着する事により得られる。中空糸状 膜の糸束の分割は、２乃至５０程度に分割すればよく、さらに好ましくは４乃至 ２０程度がよい。 In order to solve the above problems, the hollow fiber membrane module according to the present invention is a hollow fiber membrane bundle in which the end portions of each of the hollow fiber membrane bundles are divided by a tie band and the tie band is fixed. Obtained by centrifugal bonding so that the ends are embedded. The yarn bundle of the hollow fiber membrane may be divided into about 2 to 50, and more preferably about 4 to 20.
【０００５】 束ねる為の結束帯としては、弾性のないテープ等も使用可能であるが、製作上 の観点から、収縮性のある熱収縮フィルムや、弾性体である輪ゴム、Ｏ−リング 等がより好ましい。As a binding band for bundling, a tape having no elasticity can be used, but from the viewpoint of manufacturing, a shrinkable heat shrink film, an elastic rubber band, an O-ring, or the like is more preferable. preferable.
【０００６】[0006]
以下に実施例および比較例を挙げて、本考案を説明する。 The present invention will be described below with reference to Examples and Comparative Examples.
【０００７】[0007]
【実施例１】 外径１．３ミリメートルの中空糸状膜の多数本からなる糸束の両側端部を輪ゴ ムにより固定した。同様に合計４束の中空糸状膜束を作成した。次に、その４束 の中空糸状膜束を、内径１２５ミリメートルのポリスルホン製ハウジングに収納 し、熱硬化性樹脂で成形した仕切り板により中空糸状膜束を分割した。また、輪 ゴムは接着界面より内部に埋もれた状態でそのまま遠心接着法によりハウジング と糸束を接着固定した。樹脂が硬化した後端部を切断し、断面を観察したところ 、図１に示す様にそれぞれの中空糸膜束はエッジ部の無い断面となっていた。図 ２には、図１の様な断面構造を持つモジュールを図示した。この図２の様な中空 糸状膜モジュールを合計３本作成し、図３に示すフローにより、濃縮液出側で毎 分３５０リットルの純水を２４時間流した。その後、リーク検査を行ったが、３ 本いずれもリークは無かった。Example 1 Both ends of a yarn bundle composed of a large number of hollow fiber membranes having an outer diameter of 1.3 mm were fixed by ring rubber. Similarly, a total of 4 hollow fiber membrane bundles were prepared. Next, the four bundles of hollow fiber membranes were housed in a polysulfone housing having an inner diameter of 125 mm, and the partition sheets molded with a thermosetting resin were used to divide the hollow fiber membrane bundles. In addition, the rubber band was buried inside the adhesive interface, and the housing and the yarn bundle were bonded and fixed by the centrifugal bonding method. When the resin was cured, the rear end was cut and the cross section was observed. As shown in FIG. 1, each hollow fiber membrane bundle had a cross section without an edge. FIG. 2 shows a module having a sectional structure as shown in FIG. A total of three hollow fiber membrane modules as shown in FIG. 2 were prepared, and 350 liters of pure water per minute was flowed on the concentrate outlet side for 24 hours according to the flow shown in FIG. After that, a leak inspection was conducted, but none of the three leaked.
【０００８】[0008]
輪ゴムの固定を除いて、実施例と同様に中空糸状膜モジュールを３本作成し、 図４、図５に図示した、それぞれの糸束にエッジ部が存在した断面を持つ中空糸 状膜モジュールを得た。次に図３に示すフローにより、濃縮液出側で毎分３５０ リットルの純水を２４時間流した。その後、リーク検査を行ったところ３本中２ 本にリークが存在した。リークのあった中空糸状膜モジュールを解体し、リーク 箇所の調べたところ、接着界面のエッジ部で破断している事が確認できた。 Except for fixing the rubber band, three hollow fiber membrane modules were prepared in the same manner as in the example, and the hollow fiber membrane modules shown in FIGS. 4 and 5 having a cross section in which each yarn bundle had an edge portion were prepared. Obtained. Next, according to the flow shown in FIG. 3, 350 liters of pure water per minute was flowed on the outlet side of the concentrated liquid for 24 hours. After that, when a leak inspection was performed, there was a leak in two out of three. When the hollow fiber membrane module that had a leak was disassembled and the leak location was examined, it was confirmed that the edge portion of the adhesive interface was broken.
【０００９】[0009]
本考案の中空糸状膜モジュールは、糸束内に原液を均一に供給できる為に透過 水量を多く取れ、中空糸状膜内のけん濁物質の蓄積を防止でき、透過水量の減少 及び中空糸状膜の破壊を防ぐ事が可能となる。更に分割された中空糸状膜束が各 々結束帯で巻かれているのでエッジ部ができず、濾過運転時の膜破断等によるト ラブルを未然に防止できる。 The hollow fiber membrane module of the present invention can supply a large amount of permeated water because it can uniformly supply the stock solution into the yarn bundle, can prevent the accumulation of suspended substances in the hollow fiber membrane, reduce the permeated water amount, and It is possible to prevent destruction. Further, since the divided hollow fiber membrane bundles are each wound with a binding band, no edge portion is formed, and it is possible to prevent a trouble due to membrane breakage during filtration operation.
【図１】本考案の中空糸状膜モジュールの接着固定部の
断面。FIG. 1 is a cross section of an adhesive fixing part of a hollow fiber membrane module of the present invention.
【図２】本考案の中空糸状膜モジュールの説明図。FIG. 2 is an explanatory view of the hollow fiber membrane module of the present invention.
【図３】実施例、及び比較例に用いた評価装置のフロー
シート。FIG. 3 is a flow sheet of an evaluation device used in Examples and Comparative Examples.
【図４】従来の仕切り板のみを使用した中空糸状膜モジ
ュールの接着固定部の断面。FIG. 4 is a cross section of an adhesive fixing part of a hollow fiber membrane module using only a conventional partition plate.
【図５】従来の仕切り板のみを使用した中空糸状膜モジ
ュールの説明図。FIG. 5 is an explanatory view of a hollow fiber membrane module using only a conventional partition plate.
１ 中空糸状膜 ２ バルブ ３ 流量計 ４ ポンプ 1 Hollow fiber membrane 2 Valve 3 Flow meter 4 Pump
Claims (1)
着固定された、中空糸状膜モジュールにおいて、接着部
に埋め込まれたそれぞれの中空糸状膜束の端部外周の少
なくとも一部に、結束帯が巻かれている事を特徴とする
中空糸状膜モジュール。1. In a hollow fiber membrane module, in which a bundle of hollow fiber membranes is bonded and fixed in a divided state, at least a part of the outer periphery of the end of each hollow fiber membrane bundle embedded in the bonding portion, A hollow fiber membrane module characterized in that a binding band is wound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5984692U JPH0621730U (en) | 1992-08-25 | 1992-08-25 | Hollow fiber membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5984692U JPH0621730U (en) | 1992-08-25 | 1992-08-25 | Hollow fiber membrane module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0621730U true JPH0621730U (en) | 1994-03-22 |
Family
ID=13124985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5984692U Withdrawn JPH0621730U (en) | 1992-08-25 | 1992-08-25 | Hollow fiber membrane module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0621730U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2009148088A1 (en) * | 2008-06-04 | 2011-11-04 | 旭化成ケミカルズ株式会社 | Hollow fiber membrane module with covered membrane outer periphery |
-
1992
- 1992-08-25 JP JP5984692U patent/JPH0621730U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2009148088A1 (en) * | 2008-06-04 | 2011-11-04 | 旭化成ケミカルズ株式会社 | Hollow fiber membrane module with covered membrane outer periphery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19961107 |