CN1377724A - Leakage detecting method for hollow fibre separation film assembly - Google Patents
Leakage detecting method for hollow fibre separation film assembly Download PDFInfo
- Publication number
- CN1377724A CN1377724A CN 01105821 CN01105821A CN1377724A CN 1377724 A CN1377724 A CN 1377724A CN 01105821 CN01105821 CN 01105821 CN 01105821 A CN01105821 A CN 01105821A CN 1377724 A CN1377724 A CN 1377724A
- Authority
- CN
- China
- Prior art keywords
- membrane
- film assembly
- leakage
- detecting method
- separation film
- 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.)
- Pending
Links
- 239000000835 fiber Substances 0.000 title description 7
- 238000000034 method Methods 0.000 title description 4
- 238000000926 separation method Methods 0.000 title description 2
- 239000000975 dye Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 10
- 239000012510 hollow fiber Substances 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 2
- 239000012528 membrane Substances 0.000 abstract description 13
- 125000003277 amino group Chemical group 0.000 abstract 2
- 239000011148 porous material Substances 0.000 abstract 2
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 abstract 1
- 229940081735 acetylcellulose Drugs 0.000 abstract 1
- 229920002301 cellulose acetate Polymers 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The blend microporous filter membrane of polyurethane and acetyl cellulose has excellent hydrophilicity and biocompatibility, contains many end amino groups, and is suitable for use in affinity modification and as base membrane of affinity membrane. The membrane is one spongy structure without coating, and is slight asymmetry with pore size of 0.3-2 micron, pore rate of 70-85%, end amino group content of 61.6 micromol/g and pure water penetrating amount of 25 ml/sq cm each min at 0.05 MPa.
Description
The present invention relates to a kind of detection method of leakage, the detection method that particularly a kind of hollow fiber separating film assembly leaks.
Situations such as incomplete or hollow fibre filament disconnection can appear sealing at present, general hollow fiber separating film assembly inevitably in the process of producing.Detection method in the past generally adopts the gas detection method, as the gas separation membrane detection method of announcing in 1999 that is disclosed as CN1231940A.This method is sent mist compression to be separated into membrane separator, and the infiltration gas of getting some rhizoids at infiltration gas Side carries out the gas compartment analysis, judges the leakage silk of doughnut.This procedure is numerous and diverse, and detecting instrument is accurate and more with equipment, and detection time is normal, and efficient is low.
The object of the present invention is to provide a kind of assembly of hollow fiber separating film easily and fast to leak the detection method of silk fracture of wire.
Technical scheme of the present invention is the detection method that a kind of hollow fiber separating film assembly of design leaks, it is characterized in that: certain solution that contains dyestuff is sent in the separating film module to be checked as raw material, if bringing out existing dye spot at permeant outlet shows that then leakage is arranged, dye spot not occurring does not then have leakage after separating.
Advantage of the present invention is to detect the leakage that whether has of hollow fiber separating film assembly easily and fast, intuitively.
Below in conjunction with accompanying drawing the present invention is elaborated:
(this dyestuff can not be attached on the hollow-fibre membrane will to contain the solution of dyestuff, can chemistry, physical reactions not take place with hollow-fibre membrane, can not soak on hollow-fibre membrane, can not see through hollow-fibre membrane, the material that separates is not impacted) feeding membrane module to be separated, leakage points such as the silk of leakage, defective silk are arranged as membrane module, then dye molecule can enter the filament cavity of disconnection, arrive the permeant outlet end and form several dye spot, with the appearance dye spot situation that eyes are observed the permeant outlet end, just can conclude the leak on the hollow fibre filament intuitively.As long as we seal leakage point with adhesives such as epoxy resin, gets final product the repair membrane assembly, thereby improve the separating effect of whole diffusion barrier.
Claims (1)
- The detection method that a kind of hollow fiber separating film assembly leaks.It is characterized in that: certain solution that contains dyestuff is sent in the separating film module to be checked as raw material, after separating, detected the permeant outlet end,, then do not have leakage if dye spot occurs if dye spot occurring then leakage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01105821 CN1377724A (en) | 2001-04-02 | 2001-04-02 | Leakage detecting method for hollow fibre separation film assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01105821 CN1377724A (en) | 2001-04-02 | 2001-04-02 | Leakage detecting method for hollow fibre separation film assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1377724A true CN1377724A (en) | 2002-11-06 |
Family
ID=4654886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01105821 Pending CN1377724A (en) | 2001-04-02 | 2001-04-02 | Leakage detecting method for hollow fibre separation film assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1377724A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272481A (en) * | 2013-06-21 | 2013-09-04 | 昆明南疆制药有限公司 | Method for quickly judging reverse osmosis membrane leakage points in pressure membranous tube |
| CN103764263A (en) * | 2011-08-31 | 2014-04-30 | 三菱丽阳株式会社 | Hollow fiber membrane module inspection method |
| CN104399374A (en) * | 2014-11-25 | 2015-03-11 | 贵阳时代沃顿科技有限公司 | Method and device for detecting integrity of composite reverse osmosis membrane desalting layer |
| CN109758910A (en) * | 2018-12-27 | 2019-05-17 | 天津膜天膜科技股份有限公司 | Inspection and repair method for hollow fiber membrane modules |
-
2001
- 2001-04-02 CN CN 01105821 patent/CN1377724A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103764263A (en) * | 2011-08-31 | 2014-04-30 | 三菱丽阳株式会社 | Hollow fiber membrane module inspection method |
| CN103764263B (en) * | 2011-08-31 | 2015-10-14 | 三菱丽阳株式会社 | The inspection method of hollow fiber film assembly |
| CN103272481A (en) * | 2013-06-21 | 2013-09-04 | 昆明南疆制药有限公司 | Method for quickly judging reverse osmosis membrane leakage points in pressure membranous tube |
| CN104399374A (en) * | 2014-11-25 | 2015-03-11 | 贵阳时代沃顿科技有限公司 | Method and device for detecting integrity of composite reverse osmosis membrane desalting layer |
| CN104399374B (en) * | 2014-11-25 | 2016-08-17 | 贵阳时代沃顿科技有限公司 | A kind of method detecting complex reverse osmosis membrane desalination layer integrity and detection device thereof |
| CN109758910A (en) * | 2018-12-27 | 2019-05-17 | 天津膜天膜科技股份有限公司 | Inspection and repair method for hollow fiber membrane modules |
| CN109758910B (en) * | 2018-12-27 | 2021-08-13 | 天津膜天膜科技股份有限公司 | Inspection and repair method for hollow fiber membrane modules |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |