JP6065588B2 - スパイラル型分離膜エレメントおよびその製造方法 - Google Patents
スパイラル型分離膜エレメントおよびその製造方法 Download PDFInfo
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- JP6065588B2 JP6065588B2 JP2012515277A JP2012515277A JP6065588B2 JP 6065588 B2 JP6065588 B2 JP 6065588B2 JP 2012515277 A JP2012515277 A JP 2012515277A JP 2012515277 A JP2012515277 A JP 2012515277A JP 6065588 B2 JP6065588 B2 JP 6065588B2
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- separation membrane
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- membrane
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- GJBRNHKUVLOCEB-UHFFFAOYSA-N tert-butyl benzenecarboperoxoate Chemical compound CC(C)(C)OOC(=O)C1=CC=CC=C1 GJBRNHKUVLOCEB-UHFFFAOYSA-N 0.000 description 1
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- JRSJRHKJPOJTMS-MDZDMXLPSA-N trimethoxy-[(e)-2-phenylethenyl]silane Chemical compound CO[Si](OC)(OC)\C=C\C1=CC=CC=C1 JRSJRHKJPOJTMS-MDZDMXLPSA-N 0.000 description 1
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Classifications
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- 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
- B01D63/10—Spiral-wound membrane modules
- B01D63/107—Specific properties of the central tube or the permeate channel
-
- 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
- B01D63/10—Spiral-wound membrane modules
- B01D63/103—Details relating to membrane envelopes
-
- 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
- B01D63/10—Spiral-wound membrane modules
- B01D63/101—Spiral winding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/003—Membrane bonding or sealing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/12—Composite membranes; Ultra-thin membranes
- B01D69/1213—Laminated layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/12—Composite membranes; Ultra-thin membranes
- B01D69/1216—Three or more layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/04—Specific sealing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/04—Specific sealing means
- B01D2313/042—Adhesives or glues
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/08—Flow guidance means within the module or the apparatus
Description
(a−1)スパイラルに巻き上げられた分離膜を有する巻回体、
(a−2)前記分離膜の一方の面に沿って設けられた原流体流路、
(a−3)前記分離膜の他方の面に沿って設けられた透過流体流路、および、
(a−4)透過流体収集管を含み、
(a−5)前記原流体流路が、前記透過流体収集管に対し閉塞され、かつ、前記透過流体流路が、前記透過流体収集管に対し開放された状態で、
(a−6)前記分離膜が、前記透過流体収集管の周囲にスパイラルに巻き上げられて、前記巻回体が形成され、
(a−7)前記巻回体の一方の端部から、前記原流体流路に原流体が供給され、
(a−8)前記巻回体の他方の端部から、前記分離膜を透過しなかった濃縮流体が排出され、
(a−9)前記透過流体収集管を通じて、前記分離膜を透過した透過流体が導出されてなるスパイラル型分離膜エレメントにおいて、
(b−1)隣り合う前記分離膜の前記原流体に接する面が互いに対向し、前記透過流体収集管側の双方の端部の間の前記原流体流路が、前記透過流体収集管に対し、前記分離膜の端部に設けられた封止材により閉塞されて形成された分離膜対の少なくとも二組を有し、
(b−2)前記各分離膜対が、前記透過流体収集管にスパイラルに巻き上げられることで、前記巻回体が形成される。
(a)2枚の分離膜をそれぞれの原流体に接する面が互いに向かい合うように配置し、双方の分離膜の間に原流体流路を設け、双方の分離膜の一辺の端部同士が、前記原流体流路が閉塞されるように封止材で結合することで分離膜対を作製し、分離膜対の少なくとも二組を用意する分離膜対の作製工程と、
(b)前記分離膜対の作製工程において作製された少なくとも二組の分離膜対を、それぞれの透過流体に接する面が互いに向かい合うように配置し、双方の分離膜対の間に透過流体流路を設け、該透過流体流路の前記分離膜の一辺と同じ側の一辺が開放された状態になるように重ねることで、分離膜対の積層体を用意する分離膜対の積層体の作製工程と、
(c)前記分離膜対の積層体の作製工程において作製された分離膜対の積層体を、周面に透過流体の収集孔を有する透過流体収集管に、前記透過流体流路の開放されている部分が前記透過流体の収集孔に対応する状態で、巻き上げる巻回体作製工程と、
を備える。
(A−1)スパイラルに巻き上げられた分離膜3で形成された巻回体3a、
(A−2)該巻回体3aの一方の側端に嵌合された上流側端板7と該巻回体3aの他方の側端に嵌合された下流側端板8、
(A−3)前記分離膜3の一方の面に沿って設けられた原流体流路4と前記分離膜3の他方の面に沿って設けられた透過流体流路5、および、
(A−4)透過流体収集管2を含む。
(A−5)前記原流体流路4が、前記透過流体収集管2に対し閉塞され、前記透過流体流路5が、前記透過流体収集管2に対し開放された状態で、
(A−6)前記分離膜3が、前記透過流体収集管2にスパイラルに巻き上げられることで
形成される。
(A−7)前記透過流体収集管2の長手方向の一端部2bは閉塞され、開放されている他端部は前記下流側端板8の外側に位置し、
(A−8)前記上流側端板7を通じて、前記原流体流路4に原流体101が供給され、
(A−9)前記下流側端板8を通じて、前記分離膜3を透過しなかった濃縮流体103が排出され、
(A−10)前記透過流体収集管2を通じて、前記分離膜3を透過した透過流体102が導出される。
(B−1)スパイラル型分離膜エレメント1は、少なくとも2組の分離膜対6を有し、
上記分離膜対6において、隣り合う前記分離膜3の前記原流体101に接する面は互いに対向するように配置され、
前記透過流体収集管2側の双方の端部の間の前記原流体流路4は、前記透過流体収集管2に対し、前記分離膜3に設けられた封止材9(図3参照)により閉塞され、
(B−2)隣り合う前記分離膜対6は、前記透過流体102に接する面が互いに対向するように配置され、
前記透過流体収集管2側の双方の端部の間の前記透過流体流路5は、前記透過流体収集管2に対して開放され、かつ、
(B−3)前記各分離膜対6が前記透過流体収集管2の周囲にスパイラルに巻き上げられることで、前記巻回体3aが形成される。
(R1は、エチレン性不飽和基を含む反応性基を示す。R2は、アルコキシ基、アルケニルオキシ基、カルボキシ基、ケトオキシム基、ハロゲン原子またはイソシアネート基のいずれかを表す。R3は、Hまたはアルキル基を表す。m、nは、m+n≦4を満たす整数であり、m≧1、n≧1を満たすものとする。R1、R2、R3それぞれにおいて、2以上の官能基がケイ素原子に結合している場合、同一であっても異なっていても良い。)
R1は、エチレン性不飽和基を含む反応性基であるが、上で説明したとおりである。
キーエンス製高精度形状測定システムKS−1100を用い、5cm×5cmの大きさで切り取った分離膜透過水側の測定結果から、平均の高低差を解析した。10μm以上の高低差のある箇所を測定し、各高さの値を総和した値を測定総箇所の数で割って求めた。
式:TDS除去率(%)=100×{1−(透過水中のTDS濃度/供給水中のTDS濃度)}に基づき求めた。
供給水(かん水)のスパイラル型分離膜エレメント透過水量を、原水500mg/L食塩、運転圧力0.7MPa、運転温度25℃、スパイラル型分離膜エレメント当り、1日当りの透水量(立方メートル)を造水量(m3/日)とした。なお、1時間後の測定値と8時間後の測定値が1m3/日以上となった場合に、その旨を付記した。
スパイラル型分離膜エレメントを水中に浸漬させて圧力空気(0.3MPa)を供給し、気泡が3分以上発生する場合を、リークとみなした。リークが発生した分離膜対数をカウントして、エアーリークが発生した(分離膜対数/評価に供した分離膜対数)の値を回収率とした。
2 透過流体収集管(集水管)
2a 流体収集孔(集水孔)
2b 透過流体収集管の一端部(集水管の一端部)
21 巻回体の上流側端部
22 巻回体の下流側端部
3 分離膜
3a 巻回体
31 原流体に接する面(分離膜の供給水側の面)
32 透過流体に接する面(分離膜の透過水側の面)
4 原流体流路(供給水側流路)
5 透過流体流路(透過水側流路)
6 分離膜対
7 上流側端板
8 下流側端板
9 封止材
101 原液流体
102 透過流体
103 濃縮流体
H: 封止材の高さ(厚さ)
L: 透過流体収集管(集水管)の長手方向に垂直な方向における分離膜長さ
T: 分離膜対の先端
W1 分離膜対を作製する際の封止材の幅
W2 透過流体収集管(集水管)の長手方向における分離膜の幅
Claims (5)
- (a−1)スパイラルに巻き上げられた分離膜を有する巻回体、
(a−2)前記分離膜の一方の面に沿って設けられた原流体流路、
(a−3)前記分離膜の他方の面に沿って設けられた透過流体流路、および、
(a−4)透過流体収集管を含み、
(a−5)前記原流体流路が、前記透過流体収集管に対し閉塞され、かつ、前記透過流体流路が、前記透過流体収集管に対し開放された状態で、
(a−6)前記分離膜が、前記透過流体収集管の周囲にスパイラルに巻き上げられて、前記巻回体が形成され、
(a−7)前記巻回体の一方の端部から、前記原流体流路に原流体が供給され、
(a−8)前記巻回体の他方の端部から、前記分離膜を透過しなかった濃縮流体が排出され、
(a−9)前記透過流体収集管を通じて、前記分離膜を透過した透過流体が導出されてなるスパイラル型分離膜エレメントにおいて、
(b−1)隣り合う2枚の前記分離膜の前記原流体に接する面が互いに対向し、前記透過流体収集管側の双方の端部の間の前記原流体流路が、前記透過流体収集管に対し、前記分離膜の端部に設けられた封止材による接着で閉塞されて形成された分離膜対の少なくとも二組を有し、
(b−2)前記各分離膜対が、前記透過流体収集管の周囲にスパイラルに巻き上げられることで、前記巻回体が形成され、
(b−3)前記分離膜対の先端から、前記封止材の前記透過流体収集管の長手方向に直角な方向の幅が、5mm乃至100mmであるスパイラル型分離膜エレメント。 - 前記封止材の厚みが、5μm乃至500μmである請求項1に記載のスパイラル型分離膜エレメント。
- 前記原流体流路が、前記分離膜の表面に形成された凹凸、あるいは、前記分離膜の表面に沿って設けられた流路材で形成されている請求項1または2に記載のスパイラル型分離膜エレメント。
- 前記分離膜の表面に形成された前記凹凸の高低差、あるいは、前記分離膜の表面に沿って設けられた前記流路材の厚みが、80μm乃至1000μmである請求項3に記載のスパイラル型分離膜エレメント。
- (a)2枚の分離膜を、それぞれの原流体に接する面が互いに向かい合うように配置し、双方の分離膜の間に原流体流路を設け、前記原流体流路が閉塞されるように双方の分離膜の一辺の端部同士を封止材による接着で結合することで、分離膜対の少なくとも二組を用意する工程であって、前記分離膜対の先端から、前記封止材の前記透過流体収集管の長手方向に直角な方向の幅が、5mm乃至100mmである、分離膜対の作製工程と、
(b)前記分離膜対の作製工程において作製された少なくとも二組の分離膜対を、それぞれの透過流体に接する面が互いに向かい合うように配置し、双方の分離膜対の間に透過流体流路を設け、該透過流体流路の前記分離膜の一辺と同じ側の一辺が開放された状態になるように重ねることで、分離膜対の積層体を用意する分離膜対の積層体の作製工程と、
(c)前記分離膜対の積層体の作製工程において作製された分離膜対の積層体を、周面に透過流体の収集孔を有する透過流体収集管の周囲に、前記透過流体流路の開放されている部分が前記透過流体の収集孔に対応する状態で、巻き上げる巻回体作製工程と、
を備える請求項1に記載のスパイラル型分離膜エレメントを製造するスパイラル型分離膜エレメントの製造方法。
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- 2012-03-23 JP JP2012515277A patent/JP6065588B2/ja active Active
- 2012-03-23 EP EP12764950.7A patent/EP2692418A4/en not_active Ceased
- 2012-03-23 US US14/008,050 patent/US9764291B2/en active Active
- 2012-03-23 CN CN201280016531.9A patent/CN103459003B/zh active Active
- 2012-03-23 KR KR1020137024318A patent/KR101866441B1/ko active IP Right Grant
- 2012-03-23 WO PCT/JP2012/057464 patent/WO2012133153A1/ja active Application Filing
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Also Published As
Publication number | Publication date |
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CN103459003A (zh) | 2013-12-18 |
TW201247297A (en) | 2012-12-01 |
EP2692418A1 (en) | 2014-02-05 |
WO2012133153A1 (ja) | 2012-10-04 |
US9764291B2 (en) | 2017-09-19 |
EP2692418A4 (en) | 2015-02-25 |
JPWO2012133153A1 (ja) | 2014-07-28 |
KR101866441B1 (ko) | 2018-06-11 |
CN103459003B (zh) | 2016-04-06 |
KR20140016901A (ko) | 2014-02-10 |
US20140014569A1 (en) | 2014-01-16 |
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