JP6637232B2 - スパイラル型膜エレメント用透過側流路材、及びその製造方法 - Google Patents
スパイラル型膜エレメント用透過側流路材、及びその製造方法 Download PDFInfo
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Description
本発明の透過側流路材は、スパイラル型膜エレメントに用いられるものである。スパイラル型膜エレメントの全体構成については、後に詳述するが、透過側流路材以外の構成については、従来公知のものが何れも採用できる。
本発明の製造方法は、図2〜図3に示すように、長尺の樹脂シート30を搬送しつつ、その長手方向に沿う方向に複数列の凸条部31を形成する凸条形成工程と、長尺の樹脂シートを搬送しつつ、その長手方向に沿う方向に複数列の開口32を複数づつ形成する開口形成工程と、を含むものである。本実施形態では、凸条形成工程の後に開口形成工程を行なう例を示すが、両者の順番は逆であってもよい。
本発明のスパイラル型膜エレメントは、図5に示すように、複合半透膜2、供給側流路材6及び透過側流路材3を含む積層体と、その積層体を巻回した有孔の中心管5と、供給側流路と透過側流路との混合を防止する封止部21とを備えており、本発明の透過側流路材3を用いることが特徴である。本実施形態では、複合半透膜2、供給側流路材6及び透過側流路材3を含む複数の分離膜ユニットが、中心管5の回りに巻きつけられている巻回体Rの例を示す。
(1)前述の実施形態では、断面形状が矩形の凸条部31を設ける例を示したが、図4(A)に示すように、断面形状が台形の凸条31部を設けることも可能である。その場合、より簡易な工程で本発明の透過側流路材を製造することが可能である。また、同じ強度でありながら、分離膜との接触面積を低減することができる。
3 透過側流路材
5 中心管
6 供給側流路材
21 封止部
31 凸条部
31a 凸条部(上側)
31b 凸条部(下側)
32 開口
Claims (9)
- 複数列で平行に形成された凸条部と、その凸条部の間に各々複数形成された開口と、を有する樹脂シートからなるスパイラル型膜エレメント用透過側流路材の製造方法であって、
長尺の樹脂シートを搬送しつつ、その長手方向に沿う方向に複数列の凸条部を形成する凸条形成工程と、
長尺の樹脂シートを搬送しつつ、その長手方向に沿う方向に複数列の開口を複数づつ形成する開口形成工程と、
を含むスパイラル型膜エレメント用透過側流路材の製造方法。 - 前記凸条形成工程が、前記樹脂シートの両面に凸条部を形成するものである請求項1記載の製造方法。
- 前記樹脂シートの両面に形成された凸条部が、両面において高さが異なっている請求項2記載の製造方法。
- 前記凸条形成工程の後に、前記凸条部の断面をより矩形に近づける矩形化工程を更に有する請求項1〜3いずれかに記載の製造方法。
- 複数列で平行に形成された凸条部と、
その凸条部の間に各々複数形成された開口と、
を有する樹脂シートからなるスパイラル型膜エレメント用透過側流路材。 - 前記凸条部が、前記樹脂シートの両面に形成されたものである請求項5記載の透過側流路材。
- 前記樹脂シートの両面に形成された凸条部が、両面において高さが異なっている請求項6記載の透過側流路材。
- 前記凸条部の断面が矩形である請求項5〜7いずれかに記載の透過側流路材。
- 複合半透膜、供給側流路材及び透過側流路材を含む積層体と、その積層体を巻回した有孔の中心管と、供給側流路と透過側流路との混合を防止する封止部とを備えるスパイラル型膜エレメントにおいて、
前記透過側流路材は、請求項5〜8のいずれかに記載の透過側流路材であることを特徴とするスパイラル型膜エレメント。
Priority Applications (5)
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JP2014230586A JP6637232B2 (ja) | 2014-11-13 | 2014-11-13 | スパイラル型膜エレメント用透過側流路材、及びその製造方法 |
US15/519,603 US10874993B2 (en) | 2014-11-13 | 2015-11-12 | Permeation side flow path material for spiral membrane element and method for manufacturing same |
CN201580056408.3A CN107073399B (zh) | 2014-11-13 | 2015-11-12 | 螺旋型膜元件用透过侧流路部件及其制造方法 |
PCT/JP2015/081869 WO2016076397A1 (ja) | 2014-11-13 | 2015-11-12 | スパイラル型膜エレメント用透過側流路材、及びその製造方法 |
KR1020177006169A KR102437204B1 (ko) | 2014-11-13 | 2015-11-12 | 스파이럴형 막 엘리먼트용 투과측 유로재, 및 그 제조 방법 |
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JP2014230586A JP6637232B2 (ja) | 2014-11-13 | 2014-11-13 | スパイラル型膜エレメント用透過側流路材、及びその製造方法 |
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JP6637232B2 true JP6637232B2 (ja) | 2020-01-29 |
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US (1) | US10874993B2 (ja) |
JP (1) | JP6637232B2 (ja) |
KR (1) | KR102437204B1 (ja) |
CN (1) | CN107073399B (ja) |
WO (1) | WO2016076397A1 (ja) |
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CN109070002A (zh) * | 2016-04-27 | 2018-12-21 | 东丽株式会社 | 分离膜元件 |
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- 2015-11-12 WO PCT/JP2015/081869 patent/WO2016076397A1/ja active Application Filing
- 2015-11-12 KR KR1020177006169A patent/KR102437204B1/ko active IP Right Grant
- 2015-11-12 US US15/519,603 patent/US10874993B2/en active Active
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CN107073399B (zh) | 2021-03-23 |
CN107073399A (zh) | 2017-08-18 |
KR20170084010A (ko) | 2017-07-19 |
US10874993B2 (en) | 2020-12-29 |
WO2016076397A1 (ja) | 2016-05-19 |
KR102437204B1 (ko) | 2022-08-26 |
US20170239626A1 (en) | 2017-08-24 |
JP2016093776A (ja) | 2016-05-26 |
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