CN104667754B - Dielectrophoresis in-line type membrane assembly - Google Patents
Dielectrophoresis in-line type membrane assembly Download PDFInfo
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- CN104667754B CN104667754B CN201510068037.2A CN201510068037A CN104667754B CN 104667754 B CN104667754 B CN 104667754B CN 201510068037 A CN201510068037 A CN 201510068037A CN 104667754 B CN104667754 B CN 104667754B
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- line arrangement
- electrode
- dielectrophoresis
- lamina membranacea
- water
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Abstract
The invention relates to a dielectrophoresis in-line type membrane assembly which is characterized by mainly comprising a front end surface pressing plate, a rear end surface pressing plate, in-line type membrane plates, filtering membranes and electrodes, wherein a group of in-line type membrane plates is arranged in parallel between the front end surface pressing plate and the rear end surface pressing plate, and a sealing cavity is formed; the in-line type membrane plates are of frame structures; the electrodes are transversely and uniformly arranged in the in-line type membrane plates; the filtering membranes are fixedly arranged on two sides of the in-line type membrane plates; water producing cavities are formed between the filtering membranes on two sides of the in-line type membrane plates; a water flow channel is formed between two adjacent in-line type membrane plates; a water inlet communicated with the water flow channel is formed in the lower part of each in-line type membrane plate; a concentrated water outlet and a water producing outlet are formed in the upper part of each in-line type membrane plate; each concentrated water outlet is communicated with the water flow channel; and each water producing outlet corresponds to the upper part of each water producing cavity. The dielectrophoresis in-line type membrane assembly disclosed by the invention is scientific and reasonable in structural design, has an effect of enhancing the membrane separation process, can avoid the water pool limitation and can operate under positive pressure, and the dielectrophoresis technology is combined with a membrane filtration technology,.
Description
Technical field
The present invention relates to osmosis membrane filters segregation apparatus, particularly to a kind of dielectrophoresis in-line arrangement film
Assembly.
Background technology
Membrance separation is to occur in 20 beginnings of the century, the separation emerged rapidly after the sixties in 20th century
New technique.Membrane separation technique, owing to having separation, concentration, purification and refined function concurrently, has again height
The features such as effect, energy-saving and environmental protection, molecular level filtration and filter process are simple, easily controllable, therefore,
It is widely used to food, medicine, biology, environmental protection, chemical industry, metallurgy, the energy, oil, water
Process, electronics, the field such as bionical, create huge economic benefit and social benefit, it has also become
One of most important means in current separation science.
Membrane component is divided into Flat Membrane, tubular membrane, hollow-fibre membrane and rolled film, Flat Membrane by shape
As a kind of form of membrane module, have that HYDRODYNAMIC CONDITION RELATING TO is easily controllable, aquifer yield big, antipollution
Ability is strong and the feature such as cleaned and changed convenience, it is possible in more stable operation.But flat membrane at present
Part mostly is the working forms of immersion, negative pressure-pumping, and for face dirt stifled take backwash,
The way of aeration and Chemical cleaning is cleaned, and so damages face, and there is pollution.Therefore, flat board
Membrane component can not depart from pond, can not add the problem that malleation is permeated and face is easily blocked up by dirt.
Summary of the invention
It is an object of the invention to be to overcome the deficiencies in the prior art, it is provided that a kind of dielectrophoresis is in upright arrangement
Formula membrane module, has reinforced film separating technology effect, can depart from pond and limit, and can be in malleation
Lower operation.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of dielectrophoresis in-line arrangement membrane module, it is characterised in that: mainly by front end face pressing plate, after
End surface press plate, in-line arrangement lamina membranacea, filter membrane and electrode are constituted, in front end face pressing plate and rear end face pressure
Press-fiting one group of in-line arrangement lamina membranacea between plate side by side and form sealing cavity, in-line arrangement lamina membranacea is shaped as frame
Structure, the most laterally homogeneous installation electrode in each in-line arrangement lamina membranacea, solid in the both sides of in-line arrangement lamina membranacea
Dress filter membrane, between in-line arrangement lamina membranacea double-side filtering film formed produce water cavity, adjacent straight column lamina membranacea it
Between formed water stream channel, the bottom of each in-line arrangement lamina membranacea is shaped with the water inlet connected with water stream channel,
Being shaped with dense water out on the top of in-line arrangement lamina membranacea and produce water out, dense water out is with water stream channel even
Logical, produce water out correspondence and produce water cavity top.
And, described electrode uses multipair cylindrical interdigital electrode, every pair of cylindrical interdigital electrode
Anode electrode parallel connection after be connected with positive terminal, the negative electrode of every pair of cylindrical interdigital electrode
Being connected with negative terminal after parallel connection, this positive terminal and negative terminal are arranged at in-line arrangement film
The bottom of plate.
And, two side frame bodies of described in-line arrangement lamina membranacea are shaped with electrode draw-in groove, described cylindrical fork
Refer to that the both ends of electrode are flush-mounted in this electrode draw-in groove.
And, electrode uses rustless steel cold drawn wire to make, and external diameter is 1～5mm, preferably 2mm.
And, all use the sealing gasket being positioned at peripheral part to carry out close between described each in-line arrangement lamina membranacea
Envelope.
And, described in-line arrangement lamina membranacea water inlet is shaped with water-flow equation runner, and dense water out goes out
It is shaped with current and collects runner.
And, the thickness of in-line arrangement lamina membranacea is 5～10mm, preferably 8mm.
And, described filter membrane is fixed on in-line arrangement lamina membranacea both sides by welding manner, and is formed
Seal the product water cavity of structure.
And, electrode shell fragment is installed in described electrode seal contact, extraneous power supply by binding post with
Electrode shell fragment turns on, it is achieved power supply connection electrode.
And, front console is installed between front end face pressing plate and in-line arrangement diaphragm, in rear end face pressure
Rear end panel is installed between plate and in-line arrangement diaphragm.
Advantages of the present invention and having the beneficial effect that
1, in-line arrangement membrane module of the present invention, internal self formation water stream channel and closed cavity, make film
Assembly can run under positive pressure, solves plate film assembly and can only carry out negative pressure-pumping operation
A difficult problem.
2, in-line arrangement membrane module of the present invention, self is integrated into outlet passage, and integration degree is high, joint
About floor space, is effectively increased the loading density of membrane component.
3, in-line arrangement membrane module of the present invention, uses dielectrophoresis technology, according to solid particle and its institute
The difference of dielectric polarization ability of the liquid suspended, dielectrophoresis force solid particle is pushed away electrode or
Solid particle is adsorbed on electrode by person, thus slows down even avoid in Flat Membrane separating technology dense
Difference polarization phenomena, to reach reinforced film filtering technique.
4, in-line arrangement membrane module of the present invention, applies dielectrophoresis force in the solid closing on Flat Membrane surface
Granule and moved apart film surface thus reached to prevent fouling membrane and stifled film, improve film transit dose, subtract
Delay and even avoid concentration polarization, the work efficiency with prolonging service lifetime of film and improving film and aquifer yield.
5, in-line arrangement membrane module of the present invention, uses dielectrophoresis technology, under electric field action, Gu,
During liquid contact, solid particle surface can produce electric charge, and these surface charges affect in solution in turn
Ion distribution, formed electric double layer, formed electroosmotic effect, increase film transit dose, with reach strengthening
Membrane filtration process.
6, in-line arrangement membrane module of the present invention, electrode use cylindrical interdigitated electrode structure, circular table
Face makes interdigital electrode forceful electric power scene maximize, and uses minimal material, it is thus achieved that higher dielectrophoresis force.
7, present configuration design science is reasonable, dielectrophoresis technology is combined with membrane filtration technique,
There is reinforced film separating technology effect, pond can be departed from and limit, and can run under positive pressure.
Accompanying drawing explanation
Fig. 1 is the structural representation (axonometric chart) of the present invention；
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional view；
Fig. 3 is the structure enlarged diagram of in-line arrangement lamina membranacea；
Fig. 4 is the B portion enlarged drawing of Fig. 3；
Fig. 5 is the operation principle schematic diagram of the present invention.
Description of reference numerals
1-rear end face pressing plate, 2-in-line arrangement lamina membranacea, 3-front end face pressing plate, the dense water out of 4-, 5-produce water
Outlet, 6-attaching plug, 7-water inlet, 8-rear end panel, 9-front console, 10-sealing gasket, 11-
Filter membrane, 12-electrode, 13-electrode draw-in groove, 14-electrode shell fragment, 15-pull bar, 16-binding post, 17-
Water-flow equation runner, 18-parallel wire, 19-current collect runner, 20-produces water cavity, 21-water stream channel.
Detailed description of the invention
Below by specific embodiment, the invention will be further described, and following example simply describe
Property, it not determinate, it is impossible to limit protection scope of the present invention with this.
A kind of dielectrophoresis in-line arrangement membrane module, its mainly by front end face pressing plate 3, rear end face pressing plate 1,
In-line arrangement lamina membranacea 2, filter membrane 11 and electrode 12 are constituted, front end face pressing plate and rear end face pressing plate it
Between press-fit one group of in-line arrangement lamina membranacea side by side and form sealing cavity, all use between each in-line arrangement lamina membranacea
The sealing gasket 10 being positioned at peripheral part seals.Install between front end face pressing plate and in-line arrangement diaphragm
Front console 9, installs rear end panel 8 between rear end face pressing plate and in-line arrangement diaphragm.Front console,
Rear end panel uses insulant liner plate.Front end face pressing plate, front console, in-line arrangement lamina membranacea, after
End plates, rear end face pressing plate closed assembly successively also use pull bar 15 to fix.
In-line arrangement lamina membranacea is frame-shaped construction, the most laterally homogeneous installation electrode in each in-line arrangement lamina membranacea.
Being fixedly mounted with filter membrane in the both sides of in-line arrangement lamina membranacea, filter membrane is fixed on in-line arrangement film by welding manner
Plate both sides, form the product water cavity 20 sealing structure, adjacent straight between in-line arrangement lamina membranacea double-side filtering film
Forming water stream channel 21 between column lamina membranacea, the bottom of each in-line arrangement lamina membranacea is shaped with water stream channel even
Logical water inlet 7, is shaped with dense water out 4 and produces water out 5, dense water on the top of in-line arrangement lamina membranacea
Outlet connects with water stream channel, produces water out correspondence and produces water cavity top.It is shaped with on front end face pressing plate
Attaching plug 6 and the water inlet corresponding with in-line arrangement lamina membranacea, dense water out and product water out.
Electrode uses multipair cylindrical interdigital electrode, and the anode electrode of every pair of cylindrical interdigital electrode is adopted
It is connected with positive terminal after parallel wire 18 parallel connection.The negative electrode of every pair of cylindrical interdigital electrode
Being connected with negative terminal after parallel connection, this positive terminal and negative terminal are arranged at in-line arrangement film
The bottom of plate.Anode electrode is formed with negative electrode and is alternately arranged.
Electrode anode binding post and negative terminal are all in close contact installation electrode shell fragment 14, electrode bullet
Sheet one end closely press-fits in electrode parallel wire end.Extraneous power supply is by binding post 16 and electrode shell fragment
Conducting, it is achieved power supply connection electrode.Two side frame bodies of in-line arrangement lamina membranacea are shaped with electrode draw-in groove 13, circle
The both ends of cylindricality interdigital electrode are flush-mounted in this electrode draw-in groove.Electrode uses rustless steel cold drawn wire
Making, external diameter is 1～5mm, preferably 2mm.
In-line arrangement lamina membranacea water inlet is shaped with water-flow equation runner 17, and dense water out goes out to be shaped with current and receives
Mass flow pathway 19.The thickness of in-line arrangement lamina membranacea is 5～10mm, preferably 8mm.
The work process of the present invention is:
Former water is entered inside membrane module by water inlet, enters the water on every in-line arrangement lamina membranacea respectively
Flow distribution runner is distributed to film surface, under the effect of pressure and electric field, produces water and enters product through film
Water cavity, collects by producing the mouth of a river, finally by producing water out outflow membrane module, the waste water edge after concentration
Film Surface runoff, collects runner through current and enters concentrated water spout, flow out membrane module through dense water out.Electricity
Pole connect with binding post by electrode shell fragment, binding post pass through the wiring construction in front end face pressing plate and
Attaching plug is connected, and reaches the effect that electrode connects with extraneous power supply.
Dielectrophoresis concept involved in the present invention and operation principle be:
Dielectrophoresis (Dielectrophoresis) technology has been successfully applied to biomedical work
Industry separates, richness is amassed, capture microgranule and cell.What this technology described is in non-well-balanced electric field
The translational motion that neutral corpuscle produces due to the effect of dielectric polarization, produces the dipole on microgranule
Square can be represented by two identical carried charges but opposite polarity electric charge.When they are at particle interface
During upper mal-distribution, produce a macroscopical dipole moment.When this dipole moment is positioned at unshapeliness electricity
In Chang, the different of the local electric field strength on microgranule both sides produce resulting net force, referred to as a dielectrophoresis
Power.Owing to the microgranule that is suspended in medium has different dielectric properties (dielectric constant) from medium,
Microgranule can by or the direction of higher electric field intensity move, be referred to as positive dielectrophoresis, or
The direction of more weak electric field intensity is moved, the most negative dielectrophoresis.
In membrane filtration separation liquid liquid occur separation permeable membrane pollute, be all solid particle (microgranule,
Colloidal particles, solute crystalline solid, antibacterial is relative with insoluble Organic substance drop and larger molecular organics
Exist in liquid.In such a system, due to solid particle and its liquid suspended
The difference of dielectric polarization ability, solid particle is pushed away electrode or by solid particle by dielectrophoresis force
Absorption, on electrode, shows or negative dielectrophoresis character or positive dielectrophoresis character.
Due to the dielectric polarization ability lower relative to water, solid particle generally shows in waste water
For negative dielectrophoresis character；I.e. in unshapeliness electric field, solid particle is moved to weak electric field direction
Dynamic.As it is shown in figure 5, waste water (material liquid) is through the surface of film, the electrode installed under film carries
For the unshapeliness electric field needed for dielectrophoresis force.When solid particle is near film, i.e. near interdigital electricity
During pole, will be displaced from and cannot be near film.Fouling membrane and the generation of stifled film are so decreased or even eliminated.
As above, due to the dielectric polarization ability lower relative to water, solid particle is at waste water for principle
(material liquid) is usually expressed as negative dielectrophoresis character；I.e. in unshapeliness electric field, solid
Granule is moved to weak electric field direction.While water passes through film flow direction driving liquid side from material liquid side,
Dielectrophoretic force solute in material liquid is moved apart and cannot near film, solute can not at film surface enrichment,
So slow down and even avoid in Flat Membrane separating technology because water causes to driving liquid side from material liquid effluent
Concentration polarization phenomenon, improve water transit dose.
Although disclose embodiments of the invention and accompanying drawing for the purpose of illustration, but the technology of this area
Personnel are understood that without departing from the present invention and spirit and scope of the appended claims, various
Replace, to change and modifications be all possible, therefore, the scope of the present invention be not limited to embodiment and
Accompanying drawing disclosure of that.
Claims (9)
1. a dielectrophoresis in-line arrangement membrane module, it is characterised in that: main by front end face pressure
Plate, rear end face pressing plate, in-line arrangement lamina membranacea, filter membrane and electrode are constituted, front end face pressing plate with
Press-fit one group of in-line arrangement lamina membranacea between rear end face pressing plate side by side and form sealing cavity, in-line arrangement film
Plate is frame-shaped construction, and the most laterally homogeneous installation electrode in each in-line arrangement lamina membranacea, in in-line arrangement
The both sides of lamina membranacea are fixedly mounted with filter membrane, formed and produce water cavity, phase between in-line arrangement lamina membranacea double-side filtering film
Forming water stream channel between adjacent in-line arrangement lamina membranacea, the bottom of each in-line arrangement lamina membranacea is shaped with and leads to current
The water inlet of road connection, is shaped with dense water out and produces water out on the top of in-line arrangement lamina membranacea, dense
Water out connects with water stream channel, produces water out and is correspondingly arranged in product water cavity top；
Described electrode uses multipair cylindrical interdigital electrode, and every pair of cylindrical interdigital electrode is just
Being connected with positive terminal after the electrode parallel connection of pole, the negative electrode of every pair of cylindrical interdigital electrode is also
Being connected with negative terminal after connection, this positive terminal and negative terminal are arranged at in-line arrangement film
The bottom of plate.
Dielectrophoresis in-line arrangement membrane module the most according to claim 1, it is characterised in that:
Two side frame bodies of described in-line arrangement lamina membranacea are shaped with electrode draw-in groove, described cylindrical interdigital electrode
Both ends are flush-mounted in this electrode draw-in groove.
Dielectrophoresis in-line arrangement membrane module the most according to claim 1, it is characterised in that:
Electrode uses rustless steel cold drawn wire to make, and external diameter is 1～5mm.
Dielectrophoresis in-line arrangement membrane module the most according to claim 1, it is characterised in that:
The sealing gasket being positioned at peripheral part is all used to seal between described each in-line arrangement lamina membranacea.
Dielectrophoresis in-line arrangement membrane module the most according to claim 1, it is characterised in that:
Described in-line arrangement lamina membranacea water inlet is shaped with water-flow equation runner, is shaped with current at dense water out
Collect runner.
Dielectrophoresis in-line arrangement membrane module the most according to claim 1, it is characterised in that:
The thickness of in-line arrangement lamina membranacea is 5～10mm.
Dielectrophoresis in-line arrangement membrane module the most according to claim 1, it is characterised in that:
Described filter membrane is fixed on in-line arrangement lamina membranacea both sides by welding manner, and forms sealing structure
Product water cavity.
Dielectrophoresis in-line arrangement membrane module the most according to claim 1, it is characterised in that:
Electrode shell fragment is installed in described electrode seal contact, and extraneous power supply is by binding post and electrode shell fragment
Conducting, it is achieved power supply connection electrode.
Dielectrophoresis in-line arrangement membrane module the most according to claim 1, it is characterised in that:
Front console is installed between front end face pressing plate and in-line arrangement template, at rear end face pressing plate with in upright arrangement
Rear end panel is installed between formula template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068037.2A CN104667754B (en) | 2015-02-10 | 2015-02-10 | Dielectrophoresis in-line type membrane assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068037.2A CN104667754B (en) | 2015-02-10 | 2015-02-10 | Dielectrophoresis in-line type membrane assembly |
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| CN104667754A CN104667754A (en) | 2015-06-03 |
| CN104667754B true CN104667754B (en) | 2017-01-11 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517447A (en) * | 2015-09-15 | 2017-03-22 | 内蒙古天环境技术有限公司 | In-line type membrane stack capable of realizing self purification |
| CN106565042A (en) * | 2015-10-13 | 2017-04-19 | 内蒙古天环境技术有限公司 | A vehicle-loaded integrated water purification unit |
| CN106698799A (en) * | 2015-11-13 | 2017-05-24 | 内蒙古天环境技术有限公司 | Intelligent safe water supply system |
| CN105502818A (en) * | 2015-12-11 | 2016-04-20 | 凯天环保科技股份有限公司 | Membrane component and MBR (Membrane Biological Reaction) system applying same |
| CN105688675A (en) * | 2016-03-23 | 2016-06-22 | 内蒙古天环境技术有限公司 | In-line membrane stack utilizing columnar dielectrophoresis electrodes |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2855071B1 (en) * | 2003-05-21 | 2005-08-05 | Orelis | DEVICE FOR SEPARATION BY A PLURALITY OF FILTRATION MEMBRANES FROM A FLUID INTO AT LEAST TWO FRACTIONS AND USE THEREOF |
| US7811439B1 (en) * | 2005-08-03 | 2010-10-12 | Sandia Corporation | Concentration and separation of biological organisms by ultrafiltration and dielectrophoresis |
| SG181240A1 (en) * | 2010-11-12 | 2012-06-28 | Siemens Pte Ltd | Electrochemical separation modules |
| CN103463986B (en) * | 2013-09-10 | 2015-08-19 | 内蒙古天一环境技术有限公司 | The dull and stereotyped permeable membrane device of a kind of dielectrophoresis |
| CN103463985B (en) * | 2013-09-10 | 2015-07-01 | 内蒙古天一环境技术有限公司 | Osmosis membrane assembly for dielectrophoresis forward-osmosis flat plate |
| CN103463984B (en) * | 2013-09-10 | 2015-05-13 | 内蒙古天一环境技术有限公司 | Dielectrophoresis hollow fiber membrane assembly |
| CN204602004U (en) * | 2015-02-10 | 2015-09-02 | 内蒙古天一环境技术有限公司 | A kind of dielectrophoresis in-line arrangement membrane filtration separator |
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Granted publication date: 20170111 Termination date: 20210210 |