CN112316732B - Device for rapidly infiltrating and cleaning membrane yarns and utilization method thereof - Google Patents
Device for rapidly infiltrating and cleaning membrane yarns and utilization method thereof Download PDFInfo
- Publication number
- CN112316732B CN112316732B CN202011005165.XA CN202011005165A CN112316732B CN 112316732 B CN112316732 B CN 112316732B CN 202011005165 A CN202011005165 A CN 202011005165A CN 112316732 B CN112316732 B CN 112316732B
- Authority
- CN
- China
- Prior art keywords
- membrane
- power supply
- ionic
- current power
- box body
- 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.)
- Active
Links
Images
Classifications
-
- 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
- B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a device for rapidly infiltrating and cleaning membrane yarns, which is characterized in that: the box body is a hollow structure for accommodating ionic moisturizing solution or pure water; at least two electrode plates are arranged in the box body at intervals; the direct current power supply is connected with the electrode plate and used for cleaning and supplying power, and a first switch is arranged on the direct current power supply; and the alternating current power supply is connected with the electrode plate and used for supplying power in an infiltration mode, and a second switch is arranged on the alternating current power supply. According to the invention, by adding an alternating current electric field, the ionic humectant moves in the solution, so that the replacement of water in the membrane filament central tube and external ions is accelerated, the time for soaking the ionic humectant solution is shortened, and the production efficiency is improved. Through the external direct current electric field, the ordered movement of the ionic humectant in the membrane silk central tube in water is accelerated, the rapid elution of ions is realized, the elution is more complete, and the accuracy of the subsequent flux interception test is ensured.
Description
Technical Field
The invention belongs to the technical field of membrane yarn soaking and cleaning, and particularly relates to a device for quickly soaking and cleaning membrane yarns and a utilization method thereof.
Background
In order to ensure the stability of flux and performance of the hollow fiber membrane filaments before the assembly is manufactured or in the process of transportation and storage, the membrane filaments are generally required to be soaked with a humectant before being dried for packaging, so as to maintain the membrane pores of the hollow fiber membrane. After the humectant is soaked and the membrane silk is dried to a certain water content, the humectant needs to be quickly eluted from the membrane silk, so that the performance test of the subsequent membrane silk is not affected.
When the hollow fiber membrane silk is infiltrated and the humectant is eluted, a direct infiltration or flushing mode is generally adopted, for example, the utility model patent of Chinese utility model with publication number CN209934482U, namely, "an infiltration system of membrane silk infiltration device and applied with the infiltration system of the infiltration device", discloses such a membrane silk infiltration device, which comprises a box body with a hollow inner cavity, wherein the humectant used for infiltrating the membrane silk is contained in the inner cavity of the box body, the box body is provided with an inflow port used for adding the humectant into the inner cavity of the box body and an outflow port used for enabling the humectant to flow out of the box body, the outflow port and the inflow port are communicated through a circulating pipeline, and the circulating pipeline is provided with a centrifugal pump used for returning the humectant flowing out of the box body to the inner cavity of the box body. The utility model discloses a set up circulating line and centrifugal pump, the centrifugal pump is sucked the humectant in to the box for inside the humectant can permeate the every membrane silk of entering fast, be superior to the long-time free diffusion of static soaked molecule, thereby greatly reduce soak time, improve test efficiency. However, rapid replacement of the membrane filament central tube and an external solution is difficult to realize by the manner of soaking and washing in the device, and generally, soaking and washing time is different from 5-24 hours, which greatly influences research, development and production speed.
Disclosure of Invention
The first technical problem to be solved by the present invention is to provide a device capable of rapidly infiltrating and cleaning membrane filaments in view of the above-mentioned prior art.
The technical scheme adopted by the invention for solving the first technical problem is as follows: the utility model provides a device of quick infiltration and washing membrane silk which characterized in that: comprises that
The box body is a hollow structure for containing ionic moisturizing solution or pure water;
at least two electrode plates are arranged in the box body at intervals;
the direct current power supply is used for cleaning and supplying power and is connected with the electrode plate; the direct current power supply is provided with a first switch; and
the alternating current power supply is used for supplying power in an infiltration mode and is connected with the electrode plate; and a second switch is arranged on the alternating current power supply.
In order to avoid the membrane filaments from floating in disorder in the solution, the membrane filament floating device preferably further comprises a net sleeve which is arranged in the box body and used for placing the membrane filaments; the net sleeve is positioned between the electrode plates.
The second technical problem to be solved by the present invention is to provide a method for utilizing a device capable of rapidly infiltrating and cleaning membrane filaments in view of the above-mentioned current state of the art.
The technical scheme adopted by the invention for solving the second technical problem is as follows: a utilization method of a device for quickly infiltrating and cleaning membrane yarns is characterized by comprising the following steps: when the membrane filaments need to be soaked, the box body is filled with ionic moisturizing solution, and the membrane filaments are placed between the electrode plates; pressing a second switch to switch on an alternating current power supply, and continuously switching the cathode and the anode by the electrode plate to drive positive and negative ions in the ionic moisturizing solution to move and accelerate the ionic moisturizing agent to permeate into the central tube of the membrane wire;
when the membrane filaments need to be cleaned, pure water is filled in the box body, and the membrane filaments are placed between the electrode plates; pressing a first switch to switch on a direct current power supply; and positive and negative ions in the membrane filament central tube are respectively attracted to the cathode plate and the anode plate, so that the ionic humectant is quickly eluted.
Preferably, the ionic moisturizing solution consists of an ionic moisturizing agent and water; the ionic humectant is at least one selected from calcium chloride, sodium chloride, potassium chloride, sodium nitrate, sodium sulfate and sodium phosphate, the mass fraction of the ionic humectant is 5-50%, and the balance is water. Calcium chloride, sodium chloride, potassium chloride, sodium nitrate, sodium sulfate and sodium phosphate are strong electrolytes or ions with high valence state after ionization in water, and the strong electrolytes and the ions with high valence state after ionization in water move faster in an electric field, so that the humectant can enter membrane filaments quickly. When the content of the ionic humectant is less than 5 wt%, the moisturizing effect is poor, and when the content of the ionic humectant is more than 50 wt%, the structure of the membrane yarn is damaged, and the performance of the membrane yarn is influenced.
Preferably, the electrode plate contains a carbon material selected from at least one of activated carbon powder, activated carbon fiber, carbon nanotube, and graphene. The active carbon, the carbon nano tube and the graphene have large specific surface area and adsorption capacity, so that the ion adsorbent has a good adsorption effect on ions in water. When direct current is applied, the surface of the electrode is charged and adsorbs opposite charges, so that ions can be favorably migrated from the central tube of the hollow fiber membrane, and the cleaning of the membrane filaments is accelerated; when an alternating current is applied, the surface of the electrode is charged, and the anion and cation in the water are continuously adsorbed and desorbed, so that the rapid migration of the anion and cation is facilitated, and the infiltration of the ionic humectant on the membrane silk is accelerated.
Preferably, the voltage range of the alternating current power supply is 0.5-100V; the distance between the electrode plates is 15-25 cm.
Preferably, the voltage range of the direct current power supply is 0.5-100V; the distance between the electrode plates is 15-25 cm.
The voltage setting and the distance between the electrode plates have synergistic effect, so that the rapid migration of particles is improved, the water ionization is avoided, and the production safety is improved.
Preferably, the membrane filaments are one of microfiltration membranes, ultrafiltration membranes and nanofiltration membranes, and the material of the membrane filaments is one of polyvinylidene fluoride, polyvinyl chloride, polyether sulfone, polysulfone and polyacrylonitrile. The utilization method of the device for quickly infiltrating and cleaning the membrane filaments is suitable for membrane filaments with different membrane holes and various materials.
In order to prevent bacteria from breeding on the membrane yarns, bactericides are generally loaded on the surfaces of the membrane yarns or bactericides are added in water, but the difficulty of the production process is greatly increased by loading the bactericides on the surfaces of the membrane yarns. Preferably, when the membrane filaments need to be sterilized, a sodium chloride solution with the mass fraction of 0.1-20% is filled in the box body, and the membrane filaments are placed between the electrode plates; pressing a first switch to switch on a direct current power supply; the membrane filaments are sterilized by hypochlorous acid generated in the solution.
Compared with the prior art, the invention has the advantages that: 1. through an external alternating current electric field, ions in the ionic moisturizing agent move in the solution, so that the replacement of water in the membrane filament central tube and external ions is accelerated, the time for soaking the ionic moisturizing solution is shortened, and the production efficiency is improved.
2. Through the external direct current electric field, the ordered movement of ions in the ionic humectant in the membrane silk central tube in water is accelerated, the rapid elution of the ions is realized, the elution is more complete, and the accuracy of the subsequent flux interception test is ensured.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
Fig. 1 shows a device for rapidly infiltrating and cleaning membrane filaments, which comprises a box body 1, an electrode plate 2, a direct current power supply 3, an alternating current power supply 4 and a net cover 5.
The box body 1 is a hollow structure for holding ionic moisturizing solution or pure water.
The electrode plates 2 are arranged in the box body 1 at intervals; the number of the electrode plates 2 is 5 in this embodiment, and the electrode plates are arranged in parallel at intervals.
The direct current power supply 3 is connected with the electrode plate 2; the dc power supply 3 is provided with a first switch 31.
The alternating current power supply 4 is connected with the electrode plate 2; the ac power supply 4 is provided with a second switch 41.
The net cover 5 is arranged in the box body 1 for placing the membrane wires, and the net cover 5 is positioned between the electrode plates 2.
The invention provides 5 examples and 2 comparative examples, the membrane filaments of examples 1 to 5 are infiltrated and cleaned by the device and the utilization method of the invention, and the specific parameter settings are shown in table 1.
When the membrane filaments need to be soaked, the box body 1 is filled with ionic moisturizing solution, and the membrane filaments are placed between the electrode plates 2; pressing the second switch 41 to connect the AC power supply 4, the electrode plate 2 switches the cathode and the anode continuously to drive the positive and negative ions in the ionic moisturizing solution to move, and the penetration of the ionic moisturizing agent into the membrane filaments is accelerated.
When membrane filaments need to be cleaned, pure water is filled in the box body 1, and the membrane filaments are placed between the electrode plates 2; pressing the first switch 31 turns on the dc power supply 3; and positive and negative ions in the membrane filament central tube are respectively attracted to the cathode plate and the anode plate, so that the ionic humectant is quickly eluted.
When the membrane filaments need to be sterilized, a sodium chloride solution with the mass fraction of 0.1-20% is filled in the box body 1, and the membrane filaments are placed between the electrode plates 2; pressing the first switch 31 turns on the dc power supply 3; the membrane filaments are sterilized by hypochlorous acid generated in the solution.
The comparative example 1 is different from the example 1 in that the voltage is less than 0.5V and the electrode plate interval is more than 25cm, and the soaking time and the cleaning time are obviously improved.
Comparative example 2 is different from example 1 in that the concentration of the humectant of the ionic humectant is less than 5 wt%, and the soaking time and the rinsing time are remarkably increased.
TABLE 1 parameter control and Performance parameters of examples and comparative examples
Claims (5)
1. The utility model provides a device of quick infiltration and washing membrane silk which characterized in that: comprises that
The box body (1), the box body (1) is a hollow structure for containing ionic moisturizing solution or pure water; the ionic moisturizing solution consists of an ionic moisturizing agent and water; the ionic humectant is selected from at least one of calcium chloride, sodium chloride, potassium chloride, sodium nitrate, sodium sulfate and sodium phosphate, the mass fraction of the ionic humectant is 5-50%, and the balance is water;
the device comprises at least two electrode plates (2) which are arranged in a box body (1) at intervals, wherein the distance between the electrode plates (2) is 15-25 cm;
the cleaning and power supplying device comprises a direct current power supply (3) used for cleaning and supplying power, and an electrode plate (2), wherein the voltage range of the direct current power supply is 0.5-100V, and a first switch (31) is arranged on the direct current power supply (3); and
the alternating current power supply (4) for infiltration power supply is connected with the electrode plate (2), the voltage range of the alternating current power supply is 0.5-100V, and a second switch (41) is arranged on the alternating current power supply (4).
2. The device for rapidly infiltrating and cleaning membrane yarn according to claim 1, wherein: the film silk inserting device also comprises a net sleeve (5) which is arranged in the box body (1) and used for inserting the film silk; the net sleeve (5) is positioned between the electrode plates (2).
3. The method for utilizing the device for rapidly infiltrating and cleaning the membrane silk as claimed in any one of claims 1-2, which is characterized in that: when the membrane filaments need to be soaked, the box body (1) is filled with ionic moisturizing solution, and the membrane filaments are placed between the electrode plates (2); a second switch (41) is pressed to connect an alternating current power supply (4), the electrode plate (2) continuously switches the cathode and the anode to drive positive and negative ions in the ionic moisturizing solution to move, and the penetration of the ionic moisturizing agent into the central tube of the membrane yarn is accelerated;
when the membrane filaments need to be cleaned, pure water is filled in the box body (1), and the membrane filaments are placed between the electrode plates (2); pressing a first switch (31) to turn on a direct current power supply (3); and positive and negative ions in the membrane filament central tube are respectively attracted to the cathode plate and the anode plate, so that the ionic humectant is quickly eluted.
4. The method for utilizing the device for rapidly infiltrating and cleaning membrane yarns according to claim 3, wherein the device comprises: the electrode plate (2) contains a carbon material selected from at least one of activated carbon powder, activated carbon fiber, carbon nanotube, and graphene.
5. The method for utilizing the device for rapidly infiltrating and cleaning membrane yarns according to claim 3, wherein the device comprises: the membrane wire is one of a microfiltration membrane, an ultrafiltration membrane and a nanofiltration membrane, and is made of one of polyvinylidene fluoride, polyvinyl chloride, polyether sulfone, polysulfone and polyacrylonitrile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011005165.XA CN112316732B (en) | 2020-09-22 | 2020-09-22 | Device for rapidly infiltrating and cleaning membrane yarns and utilization method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011005165.XA CN112316732B (en) | 2020-09-22 | 2020-09-22 | Device for rapidly infiltrating and cleaning membrane yarns and utilization method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112316732A CN112316732A (en) | 2021-02-05 |
| CN112316732B true CN112316732B (en) | 2021-12-10 |
Family
ID=74303211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011005165.XA Active CN112316732B (en) | 2020-09-22 | 2020-09-22 | Device for rapidly infiltrating and cleaning membrane yarns and utilization method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112316732B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115025624A (en) * | 2022-07-26 | 2022-09-09 | 浙江易膜新材料科技有限公司 | Preparation and application method of dry hollow fiber ultrafiltration membrane filaments |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4420687A1 (en) * | 1994-03-15 | 1995-12-21 | Bernd Dr Penth | Electro-membrane filter twin chamber modules equipped with electrodes |
| DE10034386A1 (en) * | 2000-07-14 | 2002-01-24 | Creavis Tech & Innovation Gmbh | Method and device for electrofiltration |
| JP2002192151A (en) * | 2000-12-26 | 2002-07-10 | Mitsubishi Electric Corp | Cleaning apparatus and method for cleaning using the apparatus |
| CN101850360A (en) * | 2009-04-01 | 2010-10-06 | 中国科学院沈阳应用生态研究所 | Chromium-polluted soil cleaning method enhancing ion migration |
| CN101704005B (en) * | 2009-11-19 | 2011-04-06 | 温州宏丰电工合金股份有限公司 | Powder surface cleaning equipment and cleaning method |
| CN201997533U (en) * | 2010-12-16 | 2011-10-05 | 钱红卫 | Generator for ion-containing rinse solution |
| EP2755923A4 (en) * | 2011-09-15 | 2015-07-29 | Saltworks Technologies Inc | Method, apparatus and system for desalinating saltwater |
| JP5689051B2 (en) * | 2011-11-25 | 2015-03-25 | 株式会社神戸製鋼所 | Ion bombardment equipment |
| US20140134506A1 (en) * | 2012-11-06 | 2014-05-15 | Francis John Kub | Proton Exchange Membrane |
| CN203380185U (en) * | 2013-07-18 | 2014-01-08 | 江南大学 | Device for restoring polluted soil by using electrodynamic force |
| CN103510147B (en) * | 2013-10-30 | 2015-11-18 | 重庆大学 | A kind ofly wash the method that metal products inner chamber remains grease-removing agent |
| CN103623705B (en) * | 2013-11-15 | 2015-04-22 | 华南理工大学 | Device and method for strengthening filtering of internal-pressure membrane by using pulsed electric field |
| CN103691714B (en) * | 2013-12-19 | 2015-12-02 | 合肥京东方光电科技有限公司 | A kind of cleaning device and cleaning method |
| CN106517448B (en) * | 2016-09-14 | 2023-05-26 | 江苏润聚环保科技有限公司 | Non-selectivity high-efficiency water treatment method and equipment |
| CN106229545A (en) * | 2016-09-19 | 2016-12-14 | 中国电子科技集团公司第十八研究所 | Electrocapillary infiltration method of battery electrolyte |
| DE102016125818A1 (en) * | 2016-12-28 | 2018-06-28 | I3 Membrane Gmbh | Process for the separation of charged biologically active substances from liquids and their recovery |
| CN108905658B (en) * | 2018-07-23 | 2020-12-25 | 中国科学技术大学 | Method for preparing multivalent ion exchange membrane by membrane pollution-electrodialysis deposition |
| CN109290283A (en) * | 2018-11-19 | 2019-02-01 | 冯世庆 | A kind of ultrasonic cleaning instrument and application for patch electrodes cleaning |
| CN209934482U (en) * | 2019-03-15 | 2020-01-14 | 宁波方太厨具有限公司 | Membrane silk infiltration device and infiltration system applying same |
| CN210711091U (en) * | 2019-06-19 | 2020-06-09 | 广东中膜科技有限公司 | Composite filter assembly and sewage treatment equipment |
| CN110559863B (en) * | 2019-09-09 | 2021-03-16 | 中国科学院生态环境研究中心 | Membrane and method for controlling membrane pollution |
| CN111151144B (en) * | 2020-01-07 | 2020-11-06 | 西安交通大学 | Nano porous membrane cleaning device and cleaning method based on insulation dielectrophoresis |
| CN111394689A (en) * | 2020-04-15 | 2020-07-10 | 辽宁北宇真空科技有限公司 | Plasma cleaning device for coated substrate and use method thereof |
-
2020
- 2020-09-22 CN CN202011005165.XA patent/CN112316732B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112316732A (en) | 2021-02-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104250035B (en) | Electric drive departs from sub-device and the method using device processing water | |
| CN107585835B (en) | Ion exchange resin-based FCDI (FCDI) device for strengthening trace ion trapping and application | |
| CN104495991B (en) | A kind of high performance membrane capacitive deionization array based on flow-type electrode | |
| CN112316732B (en) | Device for rapidly infiltrating and cleaning membrane yarns and utilization method thereof | |
| CN109487081B (en) | Lithium extraction unit using flow electrode, extension device and continuous operation method | |
| KR20110071701A (en) | Capacitive deionization device | |
| CN109607711A (en) | A kind of hydridization capacitive deionization desalination module and desalination process | |
| KR101083244B1 (en) | Control method of capacitive deionization device | |
| CN109179589A (en) | The preparation method of carbon coating vanadium phosphate sodium electrode material and its application in hydridization capacitive deionization technology | |
| CN110002530A (en) | Film absorbent module, renewable membrane adsorptive reactor, liquid handling device and method | |
| CN112479320B (en) | Series-stacked desalination system and desalination method based on flow electrodes | |
| KR20150059202A (en) | Permeable hybrid electrode for capacitive deionization using activated carbon fibers | |
| CN108658179B (en) | Seawater desalination device and method for realizing desalination by utilizing positive and negative alternate adsorption | |
| CN102992522B (en) | Desalination system and method | |
| Golub et al. | Electroadsorption of bacteria on porous carbon and graphite electrodes | |
| KR101944954B1 (en) | Deionization and sterilization system including silver electrode and methods of deionization and sterilization using the same | |
| CN108217865B (en) | Method for desalting by using three-dimensional carbon electrode | |
| CN104208766A (en) | High-stain-resistance polyether sulfone blood purifier and manufacturing method thereof | |
| JP2017505229A (en) | Apparatus for removing ions from water and method of making the apparatus | |
| KR20150007070A (en) | Capacitive deionization unit cell and preparation method thereof | |
| CN210505702U (en) | Polarized membrane electric adsorption device | |
| CN109081402A (en) | A kind of regeneration sector and its regeneration method of capacitive deionization desalter | |
| CN204400676U (en) | A kind of high performance membrane capacitor deionizing instrument based on flowing-type electrode | |
| CN209721670U (en) | A kind of fixed bed electrode electrochemical desalting device | |
| CN102583655A (en) | Regeneration method for resin in continuous electric desalting membrane reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |