JPH11179161A - Membrane module and manufacture thereof - Google Patents
Membrane module and manufacture thereofInfo
- Publication number
- JPH11179161A JPH11179161A JP36574697A JP36574697A JPH11179161A JP H11179161 A JPH11179161 A JP H11179161A JP 36574697 A JP36574697 A JP 36574697A JP 36574697 A JP36574697 A JP 36574697A JP H11179161 A JPH11179161 A JP H11179161A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- separation membrane
- jig
- welding
- resin
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、分離膜と有機合成
材製の膜支持材とを溶着して接合してなる膜モジュー
ル、特に排水処理に用いる膜モジュールとその製造方法
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a membrane module obtained by welding and joining a separation membrane and a membrane support made of an organic synthetic material, and more particularly to a membrane module used for wastewater treatment and a method for producing the same.
【０００２】[0002]
【従来の技術】従来より排水処理の方法としては、分離
膜を用いた膜分離による方法が広く使用されている。そ
して、膜分離に用いられる膜について、設置・維持管理
の容易さ等の理由から、膜支持材に固定し、モジュール
化して使用する方法が一般的となっている。ここで、モ
ジュール化を行う際には、通常分離膜が脆弱である為、
膜支持材に固定する必要があるが、これに対しては、分
離膜の固定強度やシール性の向上、製作作業の容易さ等
の点から、溶着による方法が行われている。さらに、こ
の溶着方法をさらに改善する目的で、熱溶着にて膜支持
板と分離膜とを溶着する特開平７ー２４２７１記載の方
法や、膜支持板と分離膜とを様々なパターン形状で溶着
する特開平７ー２４２７０記載の方法といった、種々の
提案もなされてきている。2. Description of the Related Art Conventionally, as a wastewater treatment method, a method of membrane separation using a separation membrane has been widely used. For the membrane used for membrane separation, a method of fixing the membrane to a membrane support material and using it as a module has been generally used for reasons such as easy installation and maintenance. Here, when performing modularization, the separation membrane is usually fragile,
It is necessary to fix to the membrane support material, but for this purpose, a method by welding is used from the viewpoint of improving the fixing strength and sealing property of the separation membrane, and facilitating the production work. Furthermore, in order to further improve the welding method, a method described in JP-A-7-24271, in which the membrane support plate and the separation membrane are welded by thermal welding, or the membrane support plate and the separation membrane are welded in various patterns. Various proposals have been made, such as the method described in JP-A-7-24270.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来か
らの溶着による方法では、溶融した膜支持体の樹脂が、
分離膜の溶着が行われる側の面と膜支持体との間におい
て、分離膜と密着もしくは相溶する程度でしかない為、
溶着により得られた強度は、分離膜と膜支持体の樹脂と
の密着もしくは相溶による強度までに止まり、その及ぶ
範囲も分離膜と膜支持体との界面付近に止まってしま
う。この結果、例えば膜モジュールに対して分離膜が剥
離する方向に圧力が加わった場合等には、剥離に対する
強度が不十分となってしまう問題があった。However, in the conventional welding method, the molten resin of the membrane support is
Between the surface on the side where the welding of the separation membrane is performed and the membrane support, there is only a degree of close contact or compatibility with the separation membrane,
The strength obtained by welding is limited to the strength due to the close contact or compatibility between the separation membrane and the resin of the membrane support, and the range is also limited to the vicinity of the interface between the separation membrane and the membrane support. As a result, for example, when pressure is applied to the membrane module in the direction in which the separation membrane is peeled off, there is a problem that the strength against peeling becomes insufficient.
【０００４】また、完全に剥離しない場合であっても、
部分的なシール性の低下による漏洩等により、膜分離の
性能の低下を招くといった可能性も考えられる。[0004] Further, even if the peeling is not complete,
It is also conceivable that leakage or the like due to a partial decrease in sealing performance may cause a decrease in membrane separation performance.
【０００５】本発明では、分離膜の剥離強度とシール性
を向上させた膜モジュールを容易に製作可能とし、提供
することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a membrane module with improved separation strength and sealing property of a separation membrane, which can be easily manufactured and provided.
【０００６】[0006]
【課題を解決するための手段およびその作用・効果】本
発明では、治具に設けられた凸部が、溶着時に分離膜に
孔を開け、前記孔から前記分離膜の溶着とは反対側の面
に樹脂が溶出し、前記分離膜を覆うことができるような
形状を有する治具を用いて、分離膜と膜支持材との溶着
を行うようにした。According to the present invention, the projection provided on the jig forms a hole in the separation membrane at the time of welding, and the projection is provided on the side opposite to the welding side of the separation membrane from the hole. Welding of the separation membrane and the membrane support material was performed using a jig having a shape such that the resin eluted on the surface and could cover the separation membrane.
【０００７】本発明においては、一般の溶着方法と同じ
ように合成材料同士を加熱等の手段により溶融し、溶融
した合成材料が再び冷却し、接合を完了させる。ここで
仮に、従来通りの治具を用いたならば、加熱を受ける部
分のみが溶融し接合される為、接合強度は加熱を受けた
部分に依存してしまう。これは、従来の例にあるよう
な、治具に単なる突起を設けて溶着しようとする膜と膜
支持材とがより相溶しやすくした場合においても、同様
である。In the present invention, the synthetic materials are melted by means such as heating in the same manner as a general welding method, and the melted synthetic material is cooled again to complete the joining. Here, if a conventional jig is used, only the portion to be heated is melted and joined, so that the joining strength depends on the heated portion. The same applies to the case where the film to be welded and the film support material are more easily compatible with each other by providing a simple projection on the jig as in the conventional example.
【０００８】ここで本発明では、まず、設けられた凸部
が、溶着時に分離膜に孔を開け、前記孔から前記分離膜
の溶着とは反対側の面に樹脂が溶出し、前記分離膜を覆
うことができるような形状を有するなような治具を用い
る。Here, in the present invention, first, the provided projection makes a hole in the separation membrane at the time of welding, and the resin is eluted from the hole to the surface opposite to the side of the separation membrane where the welding is performed. A jig having a shape that can cover the surface is used.
【０００９】まず治具の凸部が分離膜に接触・加熱させ
るようにした。加熱により凸部の接触した分離膜の部分
は溶融もしくは破断して孔が開き、さらに治具の凸部が
溶着しようとする膜支持材に達する。膜支持材に達した
治具の凸部は、凸部が接触している膜支持材の部分を溶
融もしくは破断させるが、この時この溶融した樹脂の一
部が、分離膜に開いた孔から分離膜の反対側に溶出す
る。この後、治具が更に前進し、凸部以外の部位が分離
膜に達するころには、分離膜の反対側に溶出した樹脂が
分離膜の反対側に広がるようになる。そして冷却を経
て、溶着が完了した後は、一般に分離膜より高い強度を
持つ膜支持体の樹脂が、孔を通じて分離膜の反対側に広
がり、分離膜を抑えることができる。そして、治具の凸
部以外の部分においても溶着が行われ、加えて前記の治
具凸部による溶着が加わる為、剥離強度の膜モジュール
を得ることが可能となる。First, the projection of the jig is brought into contact with and heated by the separation membrane. By heating, the portion of the separation membrane in contact with the convex portion is melted or broken to open a hole, and the convex portion of the jig reaches the membrane support material to be welded. The convex part of the jig that has reached the membrane support material melts or breaks the part of the membrane support material that is in contact with the convex part, but at this time, a part of the molten resin passes through the hole opened in the separation membrane. It elutes on the other side of the separation membrane. Thereafter, the jig further advances, and by the time the portion other than the protrusion reaches the separation membrane, the resin eluted on the opposite side of the separation membrane spreads on the opposite side of the separation membrane. After the cooling and the completion of the welding, the resin of the membrane support, which generally has higher strength than the separation membrane, spreads through the holes to the opposite side of the separation membrane, and the separation membrane can be suppressed. Then, welding is performed also on the portion other than the convex portion of the jig, and in addition, the welding by the above-mentioned convex portion of the jig is added, so that it is possible to obtain a film module having peel strength.
【００１０】また、凸部以外の部分は平滑面で構成する
ことにより、凸部以外の部分を滑らかに溶着できるた
め、シール性の向上も期待できる。In addition, since the portions other than the convex portions are formed of a smooth surface, the portions other than the convex portions can be smoothly welded, so that an improvement in the sealing property can be expected.
【００１１】なお、前記の凸部を有する治具を用いた溶
着を行った後、平滑な面を有する治具にて再度溶着を行
えば、溶着面を平滑に仕上げるに止まらず、分離膜に開
いた孔から溶出した膜支持材の一部をさらに広げ、かつ
強固に溶着できる為、よりシール性を向上させることが
できる。After welding using the jig having the above-mentioned convex portion, if welding is performed again using a jig having a smooth surface, the welding surface is not limited to a smooth finish, and the surface of the separation membrane can be formed. Since a part of the membrane support material eluted from the opened holes can be further expanded and firmly welded, the sealing property can be further improved.
【００１２】以上のように、設けられた凸部が、溶着時
に分離膜に孔を開け、前記孔から前記分離膜の溶着とは
反対側の面に樹脂が溶出し、前記分離膜を覆うことがで
きるような形状を有するに構成した治具を用いることに
より、高い剥離強度とシール性を有する膜モジュールを
得ることができる。また、本構成に治具によれば溶着に
おいて必要なシール性が得られる為、特開平７ー２４２
７０のように複数の治具を用い、点状及び線状の組み合
わせにより溶着するといった、手間を要する方法をとる
ことも不要となる。[0012] As described above, the provided projections form holes in the separation membrane at the time of welding, and the resin is eluted from the holes on the surface opposite to the side where the separation membrane is welded, thereby covering the separation membrane. By using a jig configured to have such a shape as to make it possible to obtain a membrane module having high peel strength and sealing properties. Also, according to the jig of the present configuration, a sealing property required for welding can be obtained.
There is no need to use a time-consuming method such as welding using a combination of a plurality of jigs and a combination of dots and lines as in 70.
【００１３】なお、実際の溶着に用いる治具の形状に関
しては、主として分離膜の厚みに応じた、凸部形状や大
きさのものを選択するのがよい。凸部の間隔やその配置
状態に関しても、治具によって分離膜に開いた孔から分
離膜の反対側に溶出しやすいように設定すればよい。凸
部の形状に関しては、分離膜への孔の開けやすさや、孔
が開いた後の樹脂の溶出しやすさから、一般に頂部が尖
った形状の方がよい。あまり凸部の高さが低い場合には
十分な樹脂が分離膜上に溶出せず、分離膜と支持材との
剥離強度を十分に増加させることができない。また、凸
部の間隔があまりに大きい場合、一つの孔から溶出した
樹脂が覆う面積が増加する為、シール性をより増加させ
にくい。具体的には、一般の樹脂を用いた場合、０．２
ｍｍ以上の凸部を設けるのがよい。凸部の間隔について
も５ｍｍ以下、望ましくは２ｍｍ以下を確保するのがよ
い。凸部の配置に関しては、前記の治具の要件を備えて
いればよいが、製作の容易さ等の点からは、正方に配列
したり、千鳥に配列してもよい。As for the shape of the jig used for actual welding, it is preferable to select a jig having a convex shape and a size mainly corresponding to the thickness of the separation membrane. The intervals between the projections and the arrangement of the projections may be set so as to easily elute from the holes opened in the separation membrane by the jig to the opposite side of the separation membrane. Regarding the shape of the convex portion, a shape having a sharp top is generally preferred from the viewpoint of easiness of forming a hole in the separation membrane and easiness of elution of the resin after the hole is formed. If the height of the projections is too low, sufficient resin will not elute on the separation membrane, and the peel strength between the separation membrane and the support cannot be sufficiently increased. If the interval between the convex portions is too large, the area covered by the resin eluted from one hole increases, so that it is difficult to further increase the sealing performance. Specifically, when a general resin is used, 0.2
It is good to provide a convex part of mm or more. The interval between the protrusions is preferably 5 mm or less, more preferably 2 mm or less. The arrangement of the projections may be any as long as the requirements for the jig described above are satisfied. However, from the viewpoint of ease of manufacture, the projections may be arranged in a square or staggered arrangement.
【００１４】次に、溶着の際の温度に関しては、分離膜
と膜支持材との溶着が行われる部位に関し、支持材を溶
融するのに必要な温度でなければ溶着自体が行えないの
は当然であるが、あまり高温であっても支持材や膜を劣
化させてしまう。また、分離膜に治具の凸部により開け
られた孔から、溶着を堅固にする為に溶出させるに十分
な温度である必要もある。この為、これらの不具合を生
じないような温度範囲を設定し、溶着を行う。具体的に
は、膜モジュールに一般の樹脂を用いた場合、１５０〜
２８０℃の範囲とするのが良い。なお、ＰＰやＰＥＴを
用いた場合には１９０〜２６０℃といった範囲が、さら
に好適には２００〜２４０℃の範囲に設定するのがよ
い。Next, regarding the temperature at the time of welding, it is natural that the welding itself can not be performed unless the temperature required for melting the support material is related to the site where the separation membrane and the membrane support material are welded. However, even at a very high temperature, the support material and the membrane are deteriorated. In addition, the temperature must be high enough to elute from the holes formed in the separation membrane by the projections of the jig in order to make the welding firm. For this reason, a temperature range that does not cause these problems is set, and welding is performed. Specifically, when a general resin is used for the membrane module,
The temperature is preferably in the range of 280 ° C. In addition, when PP or PET is used, the range of 190 to 260 ° C is preferably set to a range of 200 to 240 ° C.
【００１５】なお、実際の加熱の方法に関しては、治具
そのものが発熱してもよく、別途加熱の方法を設けても
よい。また、加熱の手段においても電熱等のように直接
温度上昇を行わせる方法でもよいし、超音波や電磁誘導
等のように熱以外のエネルギーを負荷することにより、
加熱させる方法等を用いてもよい。As for the actual heating method, the jig itself may generate heat or a separate heating method may be provided. Also, in the heating means, a method of directly raising the temperature such as electric heating may be used, or by loading energy other than heat such as ultrasonic waves or electromagnetic induction,
A heating method or the like may be used.
【００１６】[0016]
【発明の実施の形態】以上説明した本発明の構成・作用
を一層明らかにするために、以下の実施例を用いて説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the configuration and operation of the present invention described above, the following embodiments will be described.
【００１７】図１は溶着用の治具の一実施例を示したも
のである。本実施例の治具においては、治具の凸部を１
のような四角錐で、凸部以外を２のような平面で構成し
た。FIG. 1 shows an embodiment of a welding jig. In the jig of this embodiment, the protrusion of the jig is
, And a plane other than 2 was formed by a plane such as 2.
【００１８】まず、治具における凸部の有無による接合
強度に関し、図２を用いて説明する。実施条件として
は、膜支持材材質をＰＰ、分離膜基材をＰＥＴとし、溶
着温度を２３０℃、押し付け圧を１．２５ｋｇｆ／ｃｍ
２、溶着時間を２０秒とした。また、実施例による治具
は、凸部の高さを０．５ｍｍ、間隔を１．０ｍｍとし
た。なお、効果の比較の為、凸部のない平面の治具につ
いての結果を併せて述べる。また、剥離試験に関して
は、膜支持材の面に対し垂直方向に引っ張り、溶着部が
破損する時の引っ張り強度を測定した。First, the bonding strength depending on the presence or absence of the convex portion in the jig will be described with reference to FIG. The operating conditions were as follows: the material of the membrane support was PP, the substrate of the separation membrane was PET, the welding temperature was 230 ° C., and the pressing pressure was 1.25 kgf / cm.
2. The welding time was 20 seconds. In the jig according to the example, the height of the convex portion was 0.5 mm and the interval was 1.0 mm. For comparison of the effects, the results for a flat jig having no convex portion are also described. In the peeling test, the film was pulled in a direction perpendicular to the surface of the membrane support material, and the tensile strength when the welded portion was broken was measured.
【００１９】図２に示すように、凸部を有する治具の方
が、凸部のない平面の治具よりも高い剥離強度を得るこ
とができた。これは、本発明に従う通り、治具の凸部に
より分離膜に開いた孔から溶出した膜支持材の一部が、
剥離強度に寄与することを示すものである。As shown in FIG. 2, a jig having a convex portion could obtain higher peel strength than a flat jig having no convex portion. This is because, according to the present invention, a part of the membrane support material eluted from the hole opened in the separation membrane by the convex portion of the jig,
This shows that it contributes to the peel strength.
【００２０】次に、治具の凸部に関し、高さと間隔を変
化させた場合の実施例について説明する。Next, a description will be given of an embodiment in which the height and the interval of the convex portion of the jig are changed.
【００２１】まず、本実施例において、凸部の高さを変
えた場合について図３を用いて説明する。実施条件とし
ては、膜支持材材質をＰＰ、分離膜基材をＰＥＴとし、
溶着温度を２３０℃、押し付け圧を１．２５ｋｇｆ／ｃ
ｍ２、溶着時間を２５秒とした。なお、凸部間隔は１．
０ｍｍとした。First, the case where the height of the convex portion is changed in this embodiment will be described with reference to FIG. The operating conditions were as follows: the membrane support material was PP, the separation membrane substrate was PET,
Welding temperature 230 ° C, pressing pressure 1.25kgf / c
m2, and the welding time was 25 seconds. The interval between the convex portions is 1.
0 mm.
【００２２】図３にある通り、凸部が十分な高さでない
と、剥離強度を上げることができなかった。これは、凸
部の高さがある程度ないと、分離膜の厚みに対し凸部の
高さが分離膜に孔を開けないか、もしくは開けても分離
膜の反対側に十分、溶融した膜支持材の一部が溶出せ
ず、剥離強度を向上させることができないことを示して
いる。As shown in FIG. 3, the peel strength could not be increased unless the projections were sufficiently high. This is because if the height of the projections is not to some extent, the height of the projections does not make a hole in the separation membrane with respect to the thickness of the separation membrane, or even if it is made, a sufficient amount of molten membrane support on the opposite side of the separation membrane Part of the material did not elute, indicating that the peel strength could not be improved.
【００２３】次に、本実施例において、凸部の間隔を変
えた場合について図４を用いて説明する。実施条件とし
ては、膜支持材材質をＰＰ、分離膜基材をＰＥＴとし、
溶着温度を２３０℃、押し付け圧を１．２５ｋｇｆ／ｃ
ｍ２、溶着時間を２５秒とした。なお、凸部高さは０．
５ｍｍとした。Next, a case where the interval between the convex portions is changed in this embodiment will be described with reference to FIG. The operating conditions were as follows: the membrane support material was PP, the separation membrane substrate was PET,
Welding temperature 230 ° C, pressing pressure 1.25kgf / c
m2, and the welding time was 25 seconds. In addition, the height of the convex part is 0.1.
5 mm.
【００２４】図４にある通り、凸部が十分な間隔でない
と、剥離強度を上げることができなかった。これは、凸
部の間隔がある程度ないと、分離膜に開いた孔の間隔を
狭めてしまうことにより、治具凸部以外により溶着され
る部分があまりにも少なくなるのは言うまでもなく、孔
同士の間に負荷時に亀裂等が伝播しやすくなり、全体と
して剥離強度が低下するものと考えられる。逆に、凸部
の間隔があまり大きくても、分離膜に開いた一つの孔か
ら溶出した樹脂が覆う分離膜の面積が増加してしまう
為、これも剥離強度を上げることができないことがわか
る。As shown in FIG. 4, the peel strength could not be increased unless the projections were sufficiently spaced. This is because, if there is no gap between the projections, the gap between the holes opened in the separation membrane is narrowed, so that the portion welded by other than the jig projections becomes too small. It is considered that cracks and the like are easily propagated during loading during the period, and the peel strength is reduced as a whole. Conversely, even if the interval between the projections is too large, the area of the separation membrane covered by the resin eluted from one hole opened in the separation membrane increases, which also indicates that the peel strength cannot be increased. .
【００２５】次に、治具の形状側ではなく、溶着温度を
変えた場合についての実施例について、図５を用いて説
明する。実施条件としては、膜支持材材質をＰＰ、分離
膜基材をＰＥＴとし、押し付け圧を１．２５ｋｇｆ／ｃ
ｍ２、溶着時間を２５秒とした。なお、凸部高さを１．
０ｍｍ、間隔を０．５ｍｍとした。Next, an embodiment in which the welding temperature is changed instead of the shape of the jig will be described with reference to FIG. The working conditions were as follows: the membrane support material was PP, the separation membrane substrate was PET, and the pressing pressure was 1.25 kgf / c.
m2, and the welding time was 25 seconds. In addition, the height of the convex portion is 1.
0 mm and the interval was 0.5 mm.
【００２６】図５にある通り、溶着温度がある一定の範
囲でないと、剥離強度を上げることができなかった。こ
れは、溶着温度がある程度高温でないと膜支持材の溶融
が完全にゆかず、溶着が不十分な為、剥離強度が向上し
ないのは言うまでもなく、あまり高温過ぎても分離膜や
膜支持材の材質がむしろ劣化してしまうことに依存する
ものであると考えることができる。As shown in FIG. 5, the peeling strength could not be increased unless the welding temperature was within a certain range. This is because, if the welding temperature is not high enough to some extent, the melting of the membrane support material will not completely proceed, and the welding will be insufficient, so that the peel strength will not improve, and even if the temperature is too high, the separation membrane and the membrane support material will not be melted. It can be considered that it depends on the deterioration of the material.
【００２７】以上の通り、治具に凸部を設けるという簡
便な方法により、分離膜と膜支持材の溶着を堅固なもの
とし、剥離強度の高い膜モジュールを提供することが可
能となる。As described above, by a simple method of providing the jig with the convex portion, the welding between the separation membrane and the membrane support material can be made firm, and a membrane module having high peel strength can be provided.
【図１】本発明の一実施形態に係る溶着用治具の形状。FIG. 1 shows the shape of a welding jig according to an embodiment of the present invention.
【図２】凸部を治具に設けたことによる効果を示す一実
施例の図。FIG. 2 is a view of an embodiment showing an effect obtained by providing a convex portion on a jig.
【図３】治具における凸部の高さの剥離強度への影響を
示す一実施例の図。FIG. 3 is a view of one embodiment showing an influence of a height of a convex portion on a jig on a peel strength.
【図４】治具における凸部の間隔の剥離強度への影響を
示す一実施例の図。FIG. 4 is a view of one embodiment showing the effect of the spacing of the protrusions on the jig on the peel strength.
【図５】接合温度の剥離強度への影響を示す一実施例の
図。FIG. 5 is a diagram of an example showing the effect of the bonding temperature on the peel strength.
１…本発明の一実施例に関わる治具の凸部 ２…同治具の平坦部 ３…同治具の凸部の高さ ４…同治具の凸部の間隔 DESCRIPTION OF REFERENCE NUMERALS 1: Projection of jig according to one embodiment of the present invention 2: Flat portion of the jig 3. Height of projection of the jig
Claims (7)
着して接合してなる膜モジュールにおいて、凸部を有す
る治具により、前記分離膜と前記膜支持材との溶着の際
に前記治具の凸部により分離膜に孔を開け、前記孔より
膜支持材の一部樹脂を前記分離膜の溶着を行う面とは反
対側の面に流動させ、前記膜支持材と前記樹脂により、
前記分離膜を挟み込むようにしたことを特徴とする膜モ
ジュール。In a membrane module in which a separation membrane and a membrane support made of an organic synthetic material are welded and joined, a jig having a convex portion is used for welding the separation membrane and the membrane support. A hole is formed in the separation membrane by the convex portion of the jig, and a part of the resin of the membrane support material is caused to flow from the hole to the surface opposite to the surface on which the separation membrane is welded, and the membrane support material and the By resin
A membrane module having the separation membrane interposed therebetween.
着して接合してなる膜モジュールにおいて、凸部と平坦
部とを有する治具により、前記分離膜と前記膜支持材と
の溶着の際に前記治具の凸部により分離膜に孔を開け、
前記孔より膜支持材の一部樹脂を前記分離膜の溶着を行
う面とは反対側の面に流動させ、前記膜支持材と前記樹
脂により、前記分離膜を挟み込むようにしたことを特徴
とする膜モジュール。2. A membrane module formed by welding and joining a separation membrane and a membrane support made of an organic synthetic material, wherein the separation membrane and the membrane support are joined by a jig having a convex portion and a flat portion. At the time of welding, a hole is made in the separation membrane by the convex portion of the jig,
A part of the resin of the membrane support material is caused to flow from the hole to the surface opposite to the surface on which the welding of the separation membrane is performed, and the separation membrane is sandwiched by the membrane support material and the resin. Membrane module.
着を行った後、平面を有する治具により再溶着を行うこ
とを特徴とする請求項１もしくは２記載の膜モジュー
ル。3. The membrane module according to claim 1, wherein after welding is performed by the jig according to claim 1 or 2, re-welding is performed by a jig having a flat surface.
持材との溶着の際に、前記治具の凸部により分離膜に孔
を開け、前記孔から膜支持材の一部樹脂を溶着する分離
膜の反対面に流動させ、前記膜支持材と前記樹脂によ
り、前記分離膜を挟み込むようにしたことを特徴とする
膜モジュールの製造方法。4. When welding a separation membrane and a membrane support material by a jig having a projection, a hole is formed in the separation membrane by the projection of the jig, and a part of the resin of the membrane support material is formed from the hole. Is flowed to the opposite surface of the separation membrane to be welded, and the separation membrane is sandwiched between the membrane support material and the resin.
離膜と膜支持材との溶着の際に、前記治具の凸部により
分離膜に孔を開け、前記孔から膜支持材の一部樹脂を溶
着する分離膜の反対面に流動させ、前記膜支持材と前記
樹脂により、前記分離膜を挟み込むようにしたことを特
徴とする膜モジュールの製造方法。5. A jig having a convex portion and a flat portion, when welding the separation membrane and the membrane support material, forming a hole in the separation membrane by the convex portion of the jig. A method for manufacturing a membrane module, characterized in that a part of the resin is flowed to the opposite surface of the separation membrane to be welded, and the separation membrane is sandwiched between the membrane support material and the resin.
り溶着を行った後、平面を有する治具により再溶着を行
うことを特徴とする膜モジュールの製造方法。6. A method for manufacturing a membrane module, comprising: performing welding by the manufacturing method according to claim 4 or 5; and performing re-welding using a jig having a flat surface.
膜に孔を開け、前記孔から前記分離膜の溶着とは反対側
の面に樹脂が溶出し、前記分離膜を覆うことができるよ
うな形状を有することを特徴とする請求項１、２、４、
５記載の治具。7. A projection provided on the jig forms a hole in the separation membrane at the time of welding, and the resin is eluted from the hole to a surface opposite to the side where the separation membrane is welded to cover the separation membrane. The shape which can be made to be able to do.
The jig according to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36574697A JP3610756B2 (en) | 1997-12-22 | 1997-12-22 | Membrane module and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP36574697A JP3610756B2 (en) | 1997-12-22 | 1997-12-22 | Membrane module and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11179161A true JPH11179161A (en) | 1999-07-06 |
| JP3610756B2 JP3610756B2 (en) | 2005-01-19 |
Family
ID=18485010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP36574697A Expired - Lifetime JP3610756B2 (en) | 1997-12-22 | 1997-12-22 | Membrane module and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3610756B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7776214B2 (en) | 2005-02-23 | 2010-08-17 | Gs Yuasa Corporation | Membrane element |
| CN111547814A (en) * | 2020-05-11 | 2020-08-18 | 南通康达复合材料有限公司 | High-permeability water treatment membrane |
-
1997
- 1997-12-22 JP JP36574697A patent/JP3610756B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7776214B2 (en) | 2005-02-23 | 2010-08-17 | Gs Yuasa Corporation | Membrane element |
| CN111547814A (en) * | 2020-05-11 | 2020-08-18 | 南通康达复合材料有限公司 | High-permeability water treatment membrane |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3610756B2 (en) | 2005-01-19 |
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