JP3315452B2 - Method for manufacturing hollow fiber membrane module - Google Patents
Method for manufacturing hollow fiber membrane moduleInfo
- Publication number
- JP3315452B2 JP3315452B2 JP01492893A JP1492893A JP3315452B2 JP 3315452 B2 JP3315452 B2 JP 3315452B2 JP 01492893 A JP01492893 A JP 01492893A JP 1492893 A JP1492893 A JP 1492893A JP 3315452 B2 JP3315452 B2 JP 3315452B2
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- fiber membrane
- adhesive
- module
- partition plate
- 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
- 239000012510 hollow fiber Substances 0.000 title claims description 36
- 239000012528 membrane Substances 0.000 title claims description 36
- 238000000034 method Methods 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000005192 partition Methods 0.000 claims description 19
- 239000000853 adhesive Substances 0.000 description 21
- 230000001070 adhesive effect Effects 0.000 description 21
- 238000001816 cooling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
- B01D63/021—Manufacturing thereof
- B01D63/022—Encapsulating hollow fibres
Description
【０００１】[0001]
【産業上の利用分野】本発明は、逆浸透、限外濾過、精
密濾過等に使用される中空糸膜モジュールの製造方法に
関する。The present invention relates to a method for producing a hollow fiber membrane module used for reverse osmosis, ultrafiltration, microfiltration and the like.
【０００２】[0002]
【従来の技術】中空糸膜モジュールの端部を接着剤で固
定する場合は、予め端部の開口部を、石膏等で閉塞して
おいた中空糸膜束を、ケースから両端がはみ出すように
セットし、次いで、接着治具を端部にセットし、該接着
治具部より接着剤を注入して、接着剤が硬化した後に、
端部を切断して、中空糸膜の端部を開口してモジュール
を製作している。大型モジュールの場合は接着剤の発熱
も大きいため、硬化後の収縮も大きく、ケースと接着剤
との間あるいは、中空糸膜束と接着剤との間に剥離が生
じたり、剥離が生じなくても接着剤の硬化時に歪みが残
っているために、使用中に剥離が生じたり、接着部の強
度が弱いという問題点があった。2. Description of the Related Art When an end of a hollow fiber membrane module is fixed with an adhesive, a hollow fiber membrane bundle in which an opening at the end is closed with gypsum or the like in advance is placed so that both ends protrude from a case. Set, then set the adhesive jig at the end, inject the adhesive from the adhesive jig, and after the adhesive is cured,
The module is manufactured by cutting the end and opening the end of the hollow fiber membrane. In the case of a large module, since the adhesive generates a large amount of heat, the shrinkage after curing is large, and there is no peeling between the case and the adhesive, or between the hollow fiber membrane bundle and the adhesive, and no peeling occurs. However, since distortion remains when the adhesive is cured, there is a problem that peeling occurs during use and the strength of the bonded portion is weak.
【０００３】本発明者は大型モジュールでの上記問題点
を解決するために、特開昭６０−２３２２０７で予め接
着部に仕切板を入れておいて、中空糸膜束を分割して接
着することを提案した。しかし、大型モジュールでは、
中空糸膜束の自重で糸束が垂れ下がるために、モジュー
ルのケース断面に中空糸膜が均一に分散されずに、接着
剤が偏在化した部分は、発熱によって、焼けが生じた
り、酷い場合は、使用時にクラックが発生したり、濾過
時に、特定の中空糸膜に偏って流れる等の問題点があっ
た。In order to solve the above-mentioned problems in a large-sized module, the present inventor disclosed in Japanese Patent Application Laid-Open No. Sho 60-232207 a method in which a partition plate was put in advance in a bonding portion, and a hollow fiber membrane bundle was divided and bonded. Suggested. However, for large modules,
Since the hollow fiber membrane bundle hangs down due to its own weight, the hollow fiber membrane is not evenly dispersed in the cross section of the module. In addition, there are problems such as cracks occurring during use, and uneven flow to a specific hollow fiber membrane during filtration.
【０００４】[0004]
【発明が解決しょうとする課題】本発明は、特に大型モ
ジュールにおいて、モジュールの接着断面に中空糸膜を
均一に分散するための、中空糸膜モジュールの製造方法
を提供するものである。SUMMARY OF THE INVENTION The present invention provides a method for manufacturing a hollow fiber membrane module for uniformly dispersing a hollow fiber membrane in a bonded section of a module, particularly in a large module.
【０００５】[0005]
【課題を解決するための手段】本発明者は、分割した中
空糸膜束を均一に分散する方法について鋭意検討した結
果、仕切板外縁部の数箇所に一定深さで切り欠き部を設
けておいて、該切り欠き部を紐等で結束して接着すれば
良いことを見いだし、本発明を完成させた。即ち本発明
は、中空糸膜モジュールを仕切板で分割する中空糸膜モ
ジュールの製造方法において、予め該仕切板の外縁部に
切り欠き部を設け、中空糸膜束を該切り欠き部で結束し
て接着することを特徴とする中空糸膜モジュールの製造
方法である。As a result of intensive studies on a method of uniformly dispersing the divided bundles of hollow fiber membranes, the present inventor has provided cutouts at a fixed depth at several places on the outer edge of the partition plate. Here, it has been found that it is sufficient to bind and attach the cutout portions with a string or the like, and have completed the present invention. That is, the present invention provides a method for manufacturing a hollow fiber membrane module in which a hollow fiber membrane module is divided by a partition plate, in which a notch portion is provided in advance at an outer edge portion of the partition plate, and the hollow fiber membrane bundle is bound by the notch portion. And a method of manufacturing a hollow fiber membrane module.
【０００６】本発明の仕切板の材質は接着剤と接着する
ことが必要であり、一般的には接着剤と同一の材質が好
ましい。また、仕切板の分割は３〜８分割程度が好まし
い。３分割より少ないと、接着剤の発熱を抑制したり、
接着部の強度を上げる効果が少なく、８分割より多くな
るとケースに挿入できる中空糸膜の本数が減少して好ま
しくない。仕切板に設ける切り欠き部は、長さ方向に少
なくとも２箇所以上設けた方が良い。The material of the partition plate of the present invention needs to be bonded to an adhesive, and generally the same material as the adhesive is preferable. The division of the partition plate is preferably about 3 to 8 divisions. If it is less than 3 divisions, the heat generation of the adhesive is suppressed,
The effect of increasing the strength of the bonding portion is small, and if it is more than eight, the number of hollow fiber membranes that can be inserted into the case decreases, which is not preferable. It is better to provide at least two cutouts in the partition plate in the length direction.
【０００７】[0007]
【実施例】以下、本発明を実施例により詳細に説明す
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to embodiments.
【０００８】[0008]
【実施例１】内径１２４ｍｍ、長さ２１５５ｍｍのモジ
ュールケース（１）で、該ケースの両端部には１０ｍｍ
幅で厚み１．５ｍｍの深さで接着後の切断用段差（２）
を設けたケースに、外径１．３ｍｍ、内径０．７ｍｍの
ポリスルホン樹脂製の中空糸膜束（３）を、図２に示す
厚さ６ｍｍ、長さ１２１ｍｍ、高さ９０ｍｍの十字状の
仕切板（４）で、かつ、１３ｍｍ深さの切り欠き部
（５）を３箇所設けた仕切板（４）に、中空糸膜束を仕
切板（４）におおじて４分割して挿入し、該切り欠き部
（５）で中空糸膜束（３）を細いテープ（６）で結束す
る。次いで、予め仕切板に設けた穴（７）とケースの接
着後の切断用段差に設けた穴（８）を介して、ビス
（９）で仕切板（４）がケース（１）の断面の中心部に
くるようにセットする。中空糸膜束（３）の両端の開口
部を石膏等の目止め剤で閉塞した後、ケース（１）の端
部に接着治具（１０）を取付け、該接着治具（１０）を
押さえ治具（１１）で固定し、遠心接着法によって接着
剤（１２）で、中空糸膜間、中空糸膜とケースの間を固
定した後、ケース（１）の切断用の段差（２）の部分よ
り切断して、中空糸膜束（３）の端部を開口したとこ
ろ、切断面の中空糸膜束（３）は、図３に示すように、
ケース（１）の中心部に真円状に固定されていた。Embodiment 1 A module case (1) having an inner diameter of 124 mm and a length of 2155 mm, and both ends of the case were 10 mm
Cutting step after bonding at a depth of 1.5 mm in width and thickness (2)
A hollow fiber membrane bundle (3) made of a polysulfone resin having an outer diameter of 1.3 mm and an inner diameter of 0.7 mm is placed in a case provided with a cross-shaped partition having a thickness of 6 mm, a length of 121 mm and a height of 90 mm shown in FIG. The hollow fiber membrane bundle is inserted into the partition plate (4), which is divided into four parts, into the partition plate (4) provided with three cutout portions (5) having a depth of 13 mm at the plate (4). Then, the hollow fiber membrane bundle (3) is bound by a thin tape (6) at the notch (5). Next, the partition plate (4) is cut with the screw (9) through the hole (7) provided in the partition plate in advance and the hole (8) provided in the cutting step after bonding of the case. Set so that it is in the center. After closing the openings at both ends of the hollow fiber membrane bundle (3) with a filler such as gypsum, an adhesive jig (10) is attached to the end of the case (1), and the adhesive jig (10) is held down. After fixing with a jig (11) and fixing between the hollow fiber membranes and between the hollow fiber membrane and the case with an adhesive (12) by a centrifugal bonding method, a step (2) for cutting the case (1) is formed. When the end of the hollow fiber membrane bundle (3) was opened by cutting from the portion, the hollow fiber membrane bundle (3) on the cut surface was, as shown in FIG.
It was fixed to the center of the case (1) in a perfect circle.
【０００９】このモジュールを２５℃で１時間、９５℃
で１時間、モジュール入口圧力を１ｋｇ／ｃｍ2 、出口
圧力を０．５ｋｇ／ｃｍ2 で濾過する冷熱サイクルを１
２０回繰り返しても接着部にクラックは発生しなかっ
た。The module is heated at 25 ° C. for 1 hour at 95 ° C.
For 1 hour, and a cooling / heating cycle for filtering at a module inlet pressure of 1 kg / cm 2 and an outlet pressure of 0.5 kg / cm 2 is performed for 1 hour.
No cracks occurred in the bonded portion even after repeating 20 times.
【００１０】[0010]
【比較例１】実施例１の仕切板で切り欠き部をテープで
固定しないで、実施例１と同様にモジュールを製作した
ところ、モジュールの切断面は、図４に示すように、接
着時に仕切板の下側にあった中空糸膜束は、中空糸膜束
の自重によって、垂れさがっり、ケースの断面の中心部
に固定されなかった。また仕切板の下の中空糸膜束は、
仕切板との間に接着剤の占める割合が多い部分（１２）
において接着剤の発熱により淡褐色に着色していた。Comparative Example 1 A module was manufactured in the same manner as in Example 1 except that the notched portion was not fixed to the partition plate of Example 1 with tape, and the cut surface of the module was separated at the time of bonding as shown in FIG. The hollow fiber membrane bundle that was on the lower side of the plate was sagged by the weight of the hollow fiber membrane bundle and was not fixed to the center of the cross section of the case. The hollow fiber membrane bundle under the partition plate is
Part where the ratio of the adhesive occupies a large part with the partition plate (12)
Was colored light brown due to the heat generated by the adhesive.
【００１１】そして、実施例１と同様に冷熱サイクルを
行なった結果、１２サイクルで淡褐色に着色した接着剤
部分で中空糸膜束と接着剤との間に剥離が生じた。Then, as a result of performing the cooling / heating cycle in the same manner as in Example 1, peeling occurred between the hollow fiber membrane bundle and the adhesive at the adhesive portion colored light brown in 12 cycles.
【００１２】[0012]
【発明の効果】本発明の方法を用いると、中空糸膜束
は、モジュールのケースの中心部に略真円状に固定でき
るので外観もよく、また接着剤の偏りがないので、発熱
や収縮が均一となり、冷熱サイクルを繰り返しても接着
部にクラックが発生しないモジュールを作ることができ
る。According to the method of the present invention, the hollow fiber membrane bundle can be fixed in a substantially circular shape at the center of the module case, so that the appearance is good. Is uniform, and a module in which cracks do not occur in the bonded portion even when the cooling / heating cycle is repeated can be manufactured.
【図１】本発明の実施状況の一例を示す図である。FIG. 1 is a diagram showing an example of an implementation state of the present invention.
【図２】本発明の仕切板の構造の一例を示す図である。FIG. 2 is a view showing an example of the structure of a partition plate of the present invention.
【図３】実施例１のモジュールの切断面を示す図であ
る。FIG. 3 is a diagram illustrating a cut surface of the module according to the first embodiment.
【図４】比較例１の切断面を示す図である。FIG. 4 is a view showing a cut surface of Comparative Example 1.
１ ケース ２ 切断用段差 ３ 中空糸膜束 ４ 仕切板 ５ 切り欠き ６ テープ ７ 穴 ８ 穴 ９ ビス １０ 接着治具 １１ 押さえ治具 １２ 接着剤の占める割合の多い部分 DESCRIPTION OF SYMBOLS 1 Case 2 Cutting step 3 Hollow fiber membrane bundle 4 Partition plate 5 Notch 6 Tape 7 Hole 8 Hole 9 Screw 10 Adhesive jig 11 Holding jig 12 Part where the ratio of adhesive is large
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B01D 63/02 B01D 63/00 500 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) B01D 63/02 B01D 63/00 500
Claims (1)
モジュールの製造方法において、予め仕切板の外縁部に
切り欠部を設けて、中空糸膜束を該切り欠部で結束して
接着することを特徴とする中空糸膜モジュールの製造方
法。In a method for manufacturing a hollow fiber membrane module in which a hollow fiber membrane bundle is divided by a partition plate, a notch is provided in advance at an outer edge of the partition plate, and the hollow fiber membrane bundle is bound by the notch. A method for manufacturing a hollow fiber membrane module, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01492893A JP3315452B2 (en) | 1993-02-01 | 1993-02-01 | Method for manufacturing hollow fiber membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01492893A JP3315452B2 (en) | 1993-02-01 | 1993-02-01 | Method for manufacturing hollow fiber membrane module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06226058A JPH06226058A (en) | 1994-08-16 |
| JP3315452B2 true JP3315452B2 (en) | 2002-08-19 |
Family
ID=11874634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01492893A Expired - Lifetime JP3315452B2 (en) | 1993-02-01 | 1993-02-01 | Method for manufacturing hollow fiber membrane module |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3315452B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1102425C (en) | 1995-09-21 | 2003-03-05 | 旭化成株式会社 | Hollow fiber membrane module |
| JP4642974B2 (en) * | 2000-07-04 | 2011-03-02 | 旭化成ケミカルズ株式会社 | Hollow fiber membrane module |
| JP2002143651A (en) * | 2000-11-10 | 2002-05-21 | Nok Corp | Hollow fiber membrane module |
| CN107433135B (en) * | 2017-07-25 | 2023-05-23 | 珠海格力电器股份有限公司 | Manufacturing method of filter element |
-
1993
- 1993-02-01 JP JP01492893A patent/JP3315452B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06226058A (en) | 1994-08-16 |
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