CN104556315A - Membrane stack and electro-desalting assembly - Google Patents
Membrane stack and electro-desalting assembly Download PDFInfo
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- CN104556315A CN104556315A CN201410760169.7A CN201410760169A CN104556315A CN 104556315 A CN104556315 A CN 104556315A CN 201410760169 A CN201410760169 A CN 201410760169A CN 104556315 A CN104556315 A CN 104556315A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
- C02F1/4695—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis electrodeionisation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
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Abstract
The invention relates to a water treatment device and in particular relates to a membrane stack and an electro-desalting assembly. The membrane stack comprises membrane bags, a thickened water network and a fresh water network; each membrane bag comprises an anion exchange membrane and a cation exchange membrane; the thickened water network is arranged between the anion exchange membrane and the cation exchange membrane; the fresh water network is arranged in a gap between two adjacent membrane bags; a first electrode slice and a second electrode slice for forming an electric field are arranged at the two ends of the membrane bag; the first electrode slice or the second electrode slice is shorter than the anion exchange membrane or the cation exchange membrane. Water flow collecting grooves are formed evenly on the four sides of the central tube of the electro-desalting assembly; the membrane bags and the networks are spirally wound around the central tube to form a spiral-wound membrane core. The membrane core is arranged in a membrane shell to form the electro-desalting assembly. An uneven electric field is generated between the electrodes and the current density is uneven. The electro-desalting assembly has the advantages of high desalting efficiency, high hardness tolerance, low energy consumption and the like.
Description
Technical field
The present invention relates to a kind of water treatment device, particularly relate to a kind of membrane stack and electric desalting assembly.
Background technology
Common coiled electrodialyzer joins by anions and canons exchange membrane, net dividing plate, positive and negative electrode and dense, fresh water the electrodialyzer that collector is formed, and agent structure is rolling cylindrical structure.Mutually be close in order by ion-exchange membrane, net dividing plate, with the header doubling as an electrode for axial centre rolls into cylinder, the outer bread of cylinder is to make the metal shell of another electrode.
Electricity desalination is the modern technique that a kind of electrodialytic technique merges mutually with ion exchange technique; system can by electromagnetic field by anions and canons exchange membrane to the selectivity of anions and canons through effect and ion exchange resin to the exchange interaction of ion; the directional migration of ion is realized under the effect of DC electric field; thus complete the deep desalting of water; system can complete resin continuously autoregeneration; use acid-alkali regeneration resin without the need to shutting down, thus high-quality pure water can be produced continuously.Coiling type electric salt remover is that traditional electrodialytic technique and ion exchange technique are organically combined, and is a kind of without the need to using soda acid, utilizing direct supply to remove ion continuously from former water, produces the process of high-quality pure water continuously.
CN1426970A (2003-7-2) discloses the concentrated fresh water circulation electro dialyzer of a kind of electrode with film one roll set, have by the moon, cationic exchange membrane, fresh water collection water distributing pipe, dense, insulation net dividing plate in fresh water runner, with the rolling electrodialysis main component that positive and negative foil electrode is formed, the main body structure body of its coiled electrodialyzer is rolling cylindrical structure, namely between a pair anion and cation exchange membrane, sandwich an insulation net dividing plate, form fresh water flow passage unit, the opening end of every fresh water runner is connected with fresh water collection water distributing pipe areole, an insulation net dividing plate is sandwiched between adjacent two fresh water flow passage units, form concentrated stream road unit, each the moon, cationic exchange membrane is close to formation membrane stack according to the order of sequence mutually with insulation net dividing plate, a foil is sandwiched between two cavity blocks or between two anode membranes, the area of foil is less than ion-exchange membrane area, two ion-exchange membrane surroundings of folder foil are bonded and sealed, foil is welded with wire to be connected with outer electrode, also can foil two sides brush dielectric or same conducting polymer composite, form membrane stack electrode, membrane stack electrode, net dividing plate, membrane stack is close to according to the order of sequence mutually, and integrate water distributing pipe with fresh water and roll into cylinder as axial centre.But the desalting efficiency of this device still haves much room for improvement.
Summary of the invention
First technical purpose of the present invention is to provide the membrane stack that a kind of desalination rate be used in electric desalting assembly is high, water production rate is large, energy consumption is low.
Second technical purpose of the present invention is to provide a kind of electric desalting assembly that desalination rate is high, water production rate is large, energy consumption is low comprising described membrane stack.
First technical purpose of the present invention is achieved by the following technical programs:
A kind of membrane stack, comprise film bag, dense network of rivers lattice and fresh water grid, described in it, film bag comprises anion-exchange membrane and cationic exchange membrane;
Described dense network of rivers lattice are arranged between described anion-exchange membrane and cationic exchange membrane;
Described fresh water grid is arranged on adjacent two described film bag gaps;
The two ends of described film bag are provided with the first electrode slice for the formation of electric field and the second electrode slice;
The length of described first electrode slice or the second electrode slice is less than the length of described anion-exchange membrane or cationic exchange membrane.
The present invention arranges several film bags and forms membrane stack; Adopt length to be less than the electrode slice of described anion and cation exchange membrane length, and this electrode slice is arranged on film bag two ends, have the advantages that interelectrode distance is near, fluid can produce Dean stream in helical flow path, will reduce the thickness of diffusion layer, reinforcing mass transfer process; In addition, interelectrode distance is near and be dispersed in film bag two ends and will produce uneven electric field, and current density is uneven, low near putamina zone current density, high near pipe core zone current density.Former water flow direction is from low current density to high current density direction, produces water and discharge membrane module through pipe core after process.It is cross-current flow that concentrated stream moves direction and former water flow direction.Electric desalting assembly in the present invention, has that desalting efficiency is high, tolerance stiffness capabilities is strong and low power consumption and other advantages.
As preferably, described film bag also comprises the insulating tape being arranged at two ends, and described film bag forms the first pole hydroecium, dense hydroecium and the second pole hydroecium successively by described first electrode slice, the second electrode slice and described insulating tape.
When this membrane stack is used for electric desalting assembly, owing to being provided with insulating tape, in the lattice room, the natural shape poling network of rivers, two ends of dense network of rivers lattice, reduce energy consumption further.
As preferably, described first electrode slice and the second electrode slice are arranged on the described anion-exchange membrane inner side relative with cationic exchange membrane; And one end of described first electrode slice and the second electrode slice flushes with described film bag edge.
In the inner side that first electrode slice and the second electrode slice are arranged on anion and cation exchange membrane by the present invention i.e. film bag, the thickness of fluid diffusion layer can be reduced, reinforcing mass transfer process.
As preferably, the width of described first electrode slice or the second electrode slice equals the width of described anion-exchange membrane or cationic exchange membrane.
Can electric field be improved like this, thus improve ion mobility.Meanwhile, it is as far as possible thin that the thickness of electrode slice should design, to reduce energy consumption.
As preferably, described insulating tape is epoxy resin layer insulating tape; Described electrode slice is copper electrode sheet or copper titanizing electrode slice.
Experimental result shows, especially electrodialyzer is much lower for the observable index traditional electrical demineralizer of copper electrode and copper titanizing electrode rolling electric desalting device especially electrodialyzer.
Second technical purpose of the present invention is achieved by the following technical programs:
A kind of electric desalting assembly, also comprising shell, being arranged on the pipe core in described shell and the end cap for sealing described shell two ends, anion-exchange membrane described in it and cationic exchange membrane are alternately arranged, and described dense network of rivers lattice and fresh water grid are alternately arranged;
Described film bag is connected by described pipe core and makes right cylinder along described pipe core;
Described pipe core surrounding has been evenly arranged current receiving tank;
Near a pole of the described first electrode slice composition electrode of described pipe core side, near another pole of the described second electrode slice composition electrode of described shell side.
In configuration aspects, rolling electric desalting assembly of the present invention, by the anion-exchange membrane be alternately arranged and cationic exchange membrane, the freshwater room grid be alternately arranged and dense hydroecium grid, near the pole hydroecium of pipe core and electrode, forms near the pole hydroecium of shell and electrode, pipe core, shell etc.; The anode be independently arranged in parallel by several and corresponding pole hydroecium form combined anode and combined anode room, and gap, anolyte compartment forms water distribution or the inlet of fresh water; The negative electrode be independently arranged in parallel by several and corresponding pole hydroecium form cathode assembly and cathode assembly room, and cathode compartment gap forms water distribution or the inlet of fresh water.
Several anodes (or negative electrode) being independently parallel to pipe core layout, can be evenly distributed around pipe core or the arrangement of film core, also can unevenly arrange; Electrode vertical pipe core cross section can form similar round, or radially;
Pole hydroecium (negative electrode pole hydroecium and anode pole hydroecium) can with dense hydroecium in conjunction with formation film bag, and the two ends of film bag are pole hydroecium, and the middle part of film bag is dense hydroecium.Fresh water moves to pipe core effluent in a spiral manner from outside film core, enters pipe core by the inlet be distributed on pipe core, after by pipe core one or both ends flow out membrane module.Dense water and pole water flow to the other end from membrane module one end to be parallel to pipe core direction.Dense water and pole water can flow direction identical, also can be contrary.As can be seen here, fresh water and dense water (and pole water) runner form the cross-flow passes pattern with certain angle.
Some film cores can share a putamina (or can load several film cores in a putamina), and some film cores are connected by pipe core.To produce inhomogeneous field between compound electrode, during work, current density is uneven, low near putamina zone current density, high near pipe core zone current density.Fresh water flow direction is from low current density to high current density direction, produces water and discharge membrane module through pipe core after process.
Electric desalting assembly of the present invention has helical flow path structure and the near feature of interelectrode distance, and fluid can produce Dean stream in helical flow path, will reduce the thickness of diffusion layer, reinforcing mass transfer process; In addition, because the rolling of this electric desalting assembly runner designs, reduce the thickness of diffusion layer, reduce film to resistance; Direct current energy consumption will decline.Being freshwater room in fresh water grid, is dense hydroecium in the lattice runner of the dense network of rivers.
Fresh water flows from low current density to high current density direction, and in water, high valence ion is first removed, and now needs low current density (or low motivating force) to complete; During the close pipe core region that fresh water enters, water at a middle or low price ion or weakly ionized ion is removed, and now needs high current density (or high motivating force).According to the non-uniform electric field removing ionic charge height design generation, optimize electric desalting performance, improve the removal ability to weakly ionized ion, reduce energy consumption.Fresh water and dense water (pole water) are in cross-flow mode, and the dense water in film core exterior lateral area wherein mainly containing the various high valence ions removed from freshwater room, comprises the hardness ions such as calcium ion and magnesium ion; Dense water near pipe core region is wherein mainly containing the various low price ions, the weakly ionized ion that remove from freshwater room, and the hydrogen ion produced by water decomposition and hydroxide ion etc.In dense hydroecium, hardness ions (calcium ion and magnesium ion) and hydroxide radical, bicarbonate radical etc. do not cross, and reduce fouling tendency, improve the tolerance of membrane module to water inlet hardness.The helically formula that flows fresh water flows, and enhances current turbulence in freshwater room, thereby reduces negative and positive film surface concentration polarization effect, also just reduces ion transport resistance, add ion removal efficiency.
Some film cores can share a putamina, and the some film cores in a putamina are connected by pipe core, enhance the integration of membrane module, decrease membrane module floor space.
As preferably, being respectively arranged with anode connection circle for connecting described first electrode slice or described second electrode slice or cathode connection circle near described pipe core or near described shell side, described anode connection circle being provided with opening and collecting circle in order to form anode pole water; Described cathode connection circle is provided with opening and collects circle in order to form negative electrode pole water.Anode connection circle or cathode connection circle and described anode pole water are collected and to be enclosed or negative electrode pole water is collected circle and can integratedly be formed, and also can be used for collector water, have saved space, reduced preparation cost.
As preferably, described end cap comprises upper end cover and lower end cover;
Described end cap is provided with for flowing to described current receiving tank and the water outlet communicated with described current receiving tank for fresh water from described fresh water grid.
As preferably, described end cap comprises upper end cover and lower end cover; The space for the formation of dense water cavity is provided with in described end cap; Described upper end cover or lower end cover are respectively arranged with for for concentrated stream through the dense water inlet of described dense network of rivers lattice or dense water out;
Described shell side is provided with for supplying freshet through the fresh water entrance of described fresh water grid;
Described end cap is provided with for flowing to described current receiving tank and the water outlet communicated with described current receiving tank for fresh water from described fresh water grid.
As preferably, described membrane stack end is provided with end circle; Described dense water cavity comprises dense water intake antrum and dense water water chamber;
Described lower end cover is provided with dense water inlet; The space that described lower end cover becomes with described end corral is dense water intake antrum;
Described upper end cover is provided with dense water out; The space that described upper end cover becomes with described end corral is dense water water chamber;
Described outer casing underpart side is provided with fresh water entrance;
Described upper end cover is provided with for flowing to described current receiving tank and the water outlet communicated with described current receiving tank for fresh water from described fresh water grid.
Structure of the present invention makes dense water enter from lower end cover side, flows through apart from close interelectrode dense network of rivers lattice, flows out from upper end cover side; Fresh water enters from electric desalting assembly lower end, flows through fresh water grid and enters pipe core, flows out from upper end cover top; This water flow mode can improve electric desalting efficiency, makes energy utilization more reasonable.
As preferably, described first electrode slice near described pipe core side is positive plate, and described second electrode slice near described shell side is negative plate;
The anode connection circle for connecting described first electrode slice is provided with near described pipe core side;
Be provided with for connecting described second electrode slice or cathode connection circle near described shell side.
When using near the electrode slice of described pipe core side as positive plate time, another electrode slice in shell side then as negative plate, thus forms the electric field of special distribution of the present invention; Certainly, in the first electrode slice to be also included within as the structure of positive plate as negative plate, the second electrode slice.The Yin/Yang pole wiring circle of connection electrode sheet is used for making electric desalting assembly be communicated with external power source.
As preferably, described electrode comprises negative electrode and anode; The insulating tape of described anode and correspondence forms anode pole hydroecium, and the insulating tape of described negative electrode and correspondence forms negative electrode pole hydroecium;
Several anodes be independently arranged in parallel and anode pole hydroecium form combined anode and combined anode pole hydroecium, and hydroecium gap, anode pole forms water distribution or the inlet of fresh water;
Several negative electrodes be independently arranged in parallel and negative electrode pole hydroecium form cathode assembly and cathode assembly pole hydroecium, and hydroecium gap, negative electrode pole forms water distribution or the inlet of fresh water;
Each described film bag comprises anode pole hydroecium, negative electrode pole hydroecium and dense hydroecium, and the two ends of film bag are respectively anode pole hydroecium and negative electrode pole hydroecium, and the middle part of film bag is dense hydroecium.
As preferably, described end cap is provided with the wire pressed joint connecting described anode connection circle or cathode connection circle; And described anode pole water collection circle is connected to for flowing out for pole water the flexible pipe be connected with described negative electrode pole water collection circle.Use wire pressed joint can improve the security of electric desalting assembly use.
Water leg and flexible pipe are set, pole water are separated with dense water and flows out, be convenient to subsequent disposal.
As preferably, in described freshwater room and/or dense hydroecium, be filled with ion exchange resin.
When in freshwater room during filling ion-exchange resin, electric desalting assembly of the present invention becomes EDI electric salt remover; When in freshwater room not filling ion-exchange resin time, electric desalting assembly of the present invention is ED electrodialysis unit.
Accompanying drawing explanation
Fig. 1 is a kind of film stacking structure schematic diagram of the present invention;
Fig. 2 is the electric desalting assembly schematic diagram of a kind of structure of the present invention;
Fig. 3 is the electric desalting assembly schematic diagram of the another kind of structure of the present invention;
Fig. 4 is the present invention's dense moisture film bag structural representation;
Fig. 5 is fresh water runner cell schematics of the present invention;
Fig. 6 is the dense water of the present invention and pole water flow passage cell schematics;
Fig. 7 is fresh water of the present invention, dense water and pole water flow passage whole unit schematic diagram;
Fig. 8 is Fig. 3 electric desalting assembly part A structure for amplifying schematic diagram;
Fig. 9 is the anode connection circle schematic diagram of a kind of optimal way of the present invention;
Figure 10 is the cathode connection circle schematic diagram of a kind of optimal way of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Fig. 1-Figure 10, membrane stack comprises several film bags 1, dense network of rivers lattice 2 and fresh water grid 3, and each film bag 1 comprises a slice anion-exchange membrane 11 and a slice cationic exchange membrane 12; Dense network of rivers lattice 2 are arranged between anion-exchange membrane 11 and cationic exchange membrane 12; Fresh water grid 3 is arranged between adjacent two film bags 1; The two ends of film bag 1 are provided with the first electrode slice 4 and the second electrode slice 5 for the formation of electric field; The length of the first electrode slice 4 or the second electrode slice 5 is less than the length of anion-exchange membrane 11 or cationic exchange membrane 12.First electrode slice 4 and the second electrode slice 5 are arranged in anion-exchange membrane 11 inner side relative with cationic exchange membrane 12 i.e. film bag; Consider from by dense water and pole moisture flow angle, insulating tape 10 for the formation of pole hydroecium can be set respectively at the first electrode slice 4 and the second electrode slice 5 end; And one end of the first electrode slice 4 and the second electrode slice 5 flushes with film bag 1 edge.The width of the first electrode slice 3 or the second electrode slice 5 preferably equals the width of anion-exchange membrane 111 or cationic exchange membrane 12.
Insulating tape 10 can adopt epoxy resin layer to pour into a mould and form sealer coat; The material of the first electrode slice 4 or the second electrode slice 5 can be the various metals that can conduct electricity, and is preferably copper electrode sheet or copper titanizing electrode slice.
Membrane stack of the present invention can be used for electric desalting assembly.Such as, a kind of electric desalting assembly comprises membrane stack, shell 6, is arranged on the pipe core 7 in shell 6 and the end cap 8 for sealed enclosure 6 two ends, and right cylinder made by its film bag 1 centrally pipe 7; Pipe core 7 surrounding has been evenly arranged current receiving tank 71; The first electrode slice 4 near pipe core 7 side forms a pole of electrode, and the second electrode slice 5 near shell 6 side forms another pole of electrode; Anode connection circle 14 for connecting the first electrode slice 4 or the second electrode slice 5 or cathode connection circle 15 is respectively arranged with near pipe core 7 or near shell 6 side; End cap 8 comprises upper end cover 81 and lower end cover 82; The space for the formation of dense water cavity 9 is provided with in end cap 8; Upper end cover 81 or lower end cover 82 are respectively arranged with for for concentrated stream through the dense water inlet 101 of dense network of rivers lattice 2 or dense water out 102; Shell 6 side is provided with for supplying freshet through the fresh water entrance 103 of fresh water grid 3; End cap 8 is provided with for flowing to current receiving tank 71 and the water outlet 104 communicated with current receiving tank 71 for fresh water from fresh water grid 3.Anode connection circle 14 is provided with opening and collects circle 141 in order to form anode pole water; Cathode connection circle 15 is provided with opening and collects circle 151 in order to form negative electrode pole water.This electric desalting assembly has helical flow path structure and the near feature of interelectrode distance, and fluid can produce Dean stream in helical flow path, will reduce the thickness of diffusion layer, reinforcing mass transfer process; In addition, because the rolling of this electric desalting assembly runner designs, reduce the thickness of diffusion layer, reduce film to resistance; Direct current energy consumption will decline.Being freshwater room in fresh water grid, is dense hydroecium in the lattice runner of the dense network of rivers.
A kind of preferred water flow mode is: arrange end circle 83 in membrane stack end; Dense water cavity 9 comprises dense water intake antrum 91 and dense water water chamber 92; Lower end cover 82 is provided with dense water inlet 101; The space that lower end cover 82 surrounds with end circle 83 is dense water intake antrum 91; Upper end cover 81 is provided with dense water out 102; The space that upper end cover 81 surrounds with end circle 83 is dense water water chamber 92; Side, shell 6 bottom is provided with fresh water entrance 103; Upper end cover 81 is provided with for flowing to current receiving tank 71 and the water outlet 104 communicated with current receiving tank 71 for fresh water from fresh water grid 3.The first electrode slice 4 near pipe core 7 side is positive plate, and the second electrode slice 5 near shell 6 side is negative plate; The anode connection circle 14 for connecting the first electrode slice 4 is provided with near pipe core 7 side; Be provided with for connecting the second electrode slice 5 or cathode connection circle 15 near shell 6 side.Now, the diameter of anode connection circle 14 is less than the diameter of cathode connection circle 15.
When arranging insulating tape 10, at the natural shape poling network of rivers, the two ends lattice of dense network of rivers lattice 2, certainly, also in addition the other network of rivers, pole lattice 18 can be set in the film bag space that insulating tape surrounds, to reduce energy consumption further.
End cap 8 is provided with the wire pressed joint 13 of jointed anode wiring circle 14 or cathode connection circle 15, wire pressed joint 13 is connected by wire 16 with anode connection circle 14 or cathode connection circle 15.Anode pole water collects circle 141 and negative electrode pole water collection circle 151 is connected to for the flexible pipe 17 for the outflow of pole water.
When in freshwater room during filling ion-exchange resin, electric desalting assembly of the present invention becomes EDI electric salt remover; When in freshwater room not filling ion-exchange resin time, electric desalting assembly of the present invention is ED electrodialysis unit.Certainly, in order to improve the velocity of ion exchange in dense hydroecium, can also filling ion-exchange resin in dense hydroecium further.
From operational safety and device lifetime angle consider, also further end cap top can be provided with contiguous water outlet 104 and for compress water outlet 104 hold-down nut 105, end circle 83 is positioned at shell 6 inwall and is provided with sealing-ring 831.
By make the total area be 640cm
2coiled electrodialyzer, and carried out experimental study, shown that coiled electrodialyzer has desalination rate high, water production rate is large, the features such as energy consumption is low, and operating voltage is low.Using tap water as water inlet, the limit current density of coiled electrodialyzer can reach 1.7mA/cm
2, and conventional electrodialysis device limit current density is less than 0.4mA/cm
2; When specific conductivity is between 350-2400 μ s/cm, adopt expression of first degree desalination, ratio of desalinization is between 40-60 ﹪.
Meanwhile, the impact of charging flow velocity on coiled electrodialyzer desalting performance is inquired into.When specific conductivity is more than 360 μ s/cm, coiled electrodialyzer increases significantly than the per membrane area fresh water production ability of conventional electrodialysis device. and fresh water production ability can improve more than 1 times.
This specific embodiment is only explanation of the invention; it is not limitation of the present invention; those skilled in the art can make to the present embodiment the amendment not having creative contribution as required after reading this specification sheets, as long as but be all subject to the protection of patent law in right of the present invention.
Claims (10)
1. a membrane stack, comprises film bag (1), dense network of rivers lattice (2) and fresh water grid (3), it is characterized in that: described film bag (1) comprises anion-exchange membrane (11) and cationic exchange membrane (12);
Described dense network of rivers lattice (2) is arranged between described anion-exchange membrane (11) and cationic exchange membrane (12);
Described fresh water grid (3) is arranged on adjacent two described film bag gaps;
The two ends of described film bag (1) are provided with the first electrode slice (4) for the formation of electric field and the second electrode slice (5);
The length of described first electrode slice (4) or the second electrode slice (5) is less than the length of described anion-exchange membrane (11) or cationic exchange membrane (12).
2. a kind of membrane stack according to claim 1, it is characterized in that: described film bag (1) also comprises the insulating tape (10) being arranged at two ends, described film bag (1) forms anode pole hydroecium, dense hydroecium and negative electrode pole hydroecium successively by described first electrode slice (4), the second electrode slice (5) and described insulating tape (10).
3. comprising an electric desalting assembly for any one of claim 1-2 membrane stack, also comprise shell (6), being arranged on the pipe core (7) in described shell (6) and the end cap (8) for sealing described shell (6) two ends, it is characterized in that:
Described anion-exchange membrane (11) and cationic exchange membrane (12) are alternately arranged, and described dense network of rivers lattice (2) and fresh water grid (3) are alternately arranged;
Described film bag (1) is connected by described pipe core (7) and makes right cylinder along described pipe core (7);
Described pipe core (7) surrounding has been evenly arranged current receiving tank (71);
Near a pole of described first electrode slice (4) the composition electrode of described pipe core (7) side, near another pole of described second electrode slice (5) the composition electrode of described shell (6) side.
4. an electric desalting assembly according to claim 3, is characterized in that:
Described electrode comprises negative electrode and anode; The insulating tape of described anode and correspondence forms anode pole hydroecium, and the insulating tape of described negative electrode and correspondence forms negative electrode pole hydroecium;
Several anodes be independently arranged in parallel and anode pole hydroecium form combined anode and combined anode pole hydroecium, and hydroecium gap, anode pole forms water distribution or the inlet of fresh water;
Several negative electrodes be independently arranged in parallel and negative electrode pole hydroecium form cathode assembly and cathode assembly pole hydroecium, and hydroecium gap, negative electrode pole forms water distribution or the inlet of fresh water;
Each described film bag comprises anode pole hydroecium, negative electrode pole hydroecium and dense hydroecium, and the two ends of film bag are respectively anode pole hydroecium and negative electrode pole hydroecium, and the middle part of film bag is dense hydroecium.
5. an electric desalting assembly according to claim 4, is characterized in that: several male or females being independently parallel to pipe core layout are even or uneven arranged around pipe core; Electrode vertical pipe core cross section forms similar round or radially.
6. an electric desalting assembly according to claim 5, is characterized in that:
Anode connection circle (14) for connecting described first electrode slice (4) or described second electrode slice (5) or cathode connection circle (15) is respectively arranged with near described pipe core (7) or near described shell (6) side; Described anode connection circle (14) is provided with opening and collects circle (141) in order to form anode pole water; Described cathode connection circle (15) is provided with opening and collects circle (151) in order to form negative electrode pole water.
7. an electric desalting assembly according to claim 6, is characterized in that:
Described end cap (8) comprises upper end cover (81) and lower end cover (82);
Described end cap (8) is provided with for flowing to described current receiving tank (71) and the water outlet (104) communicated with described current receiving tank (71) for fresh water from described fresh water grid (3).
8. an electric desalting assembly according to claim 7, is characterized in that: be provided with the space for the formation of dense water cavity (9) in described end cap (8); Described upper end cover (81) or lower end cover (82) are respectively arranged with for for concentrated stream through the dense water inlet (101) of described dense network of rivers lattice (2) or dense water out (102);
Described shell (6) side is provided with for supplying freshet through the fresh water entrance (103) of described fresh water grid (3);
Described end cap (8) is provided with for flowing to described current receiving tank (71) and the water outlet (104) communicated with described current receiving tank (71) for fresh water from described fresh water grid (3).
9. a kind of electric desalting assembly according to claim 8, is characterized in that: described first electrode slice (4) near described pipe core (7) side is positive plate, and described second electrode slice (5) near described shell (6) side is negative plate;
The anode connection circle (14) for connecting described first electrode slice (4) is provided with near described pipe core (7) side;
Be provided with for connecting described second electrode slice (5) or cathode connection circle (15) near described shell (6) side.
10. a kind of electric desalting assembly according to claim 9, is characterized in that: described end cap (8) is provided with the wire pressed joint (13) connecting described anode connection circle (14) or cathode connection circle (15); And (141) are enclosed in water collection in described anode pole and described negative electrode pole water collection circle (151) is connected to for the flexible pipe (17) for the outflow of pole water.
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| CN201410760169.7A CN104556315B (en) | 2014-12-12 | 2014-12-12 | A kind of membrane stack and electro-desalting assembly |
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| CN201410760169.7A CN104556315B (en) | 2014-12-12 | 2014-12-12 | A kind of membrane stack and electro-desalting assembly |
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| CN104556315B CN104556315B (en) | 2016-08-24 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800744A (en) * | 2016-05-17 | 2016-07-27 | 哈尔滨工业大学 | Portable seawater desalination device and water purification cup including the device |
| CN107265576A (en) * | 2017-07-19 | 2017-10-20 | 镇江市润源水处理设备制造有限公司 | The conducting terminal of electro-adsorption demineralization module |
| CN110550787A (en) * | 2019-08-20 | 2019-12-10 | 生态环境部华南环境科学研究所 | Desalting treatment equipment and method for fertilizer utilization of cow breeding wastewater |
| CN110894121A (en) * | 2018-09-13 | 2020-03-20 | 宁波方太厨具有限公司 | Roll type electrochemical desalination softening device |
| CN110894120A (en) * | 2018-09-13 | 2020-03-20 | 宁波方太厨具有限公司 | Electrochemical desalination softening device |
| CN111601775A (en) * | 2018-01-15 | 2020-08-28 | 科唯怡株式会社 | Electric deionizing filter |
| CN113929194A (en) * | 2020-06-29 | 2022-01-14 | 佛山市顺德区美的饮水机制造有限公司 | Water treatment device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111039365A (en) * | 2018-10-15 | 2020-04-21 | 宁波方太厨具有限公司 | Self-generating capacitor deionization device |
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| JP2001137859A (en) * | 1999-11-18 | 2001-05-22 | Nippon Rensui Co Ltd | Electric regeneration type pure water production device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105800744A (en) * | 2016-05-17 | 2016-07-27 | 哈尔滨工业大学 | Portable seawater desalination device and water purification cup including the device |
| CN107265576A (en) * | 2017-07-19 | 2017-10-20 | 镇江市润源水处理设备制造有限公司 | The conducting terminal of electro-adsorption demineralization module |
| CN107265576B (en) * | 2017-07-19 | 2024-03-15 | 浙江安耐杰科技股份有限公司 | Conductive terminal of electro-adsorption desalting module |
| CN111601775A (en) * | 2018-01-15 | 2020-08-28 | 科唯怡株式会社 | Electric deionizing filter |
| CN111601775B (en) * | 2018-01-15 | 2023-02-24 | 科唯怡株式会社 | Electric deionizing filter |
| US12064728B2 (en) | 2018-01-15 | 2024-08-20 | Coway Co., Ltd. | Electrodeionization filter |
| CN110894121A (en) * | 2018-09-13 | 2020-03-20 | 宁波方太厨具有限公司 | Roll type electrochemical desalination softening device |
| CN110894120A (en) * | 2018-09-13 | 2020-03-20 | 宁波方太厨具有限公司 | Electrochemical desalination softening device |
| CN110550787A (en) * | 2019-08-20 | 2019-12-10 | 生态环境部华南环境科学研究所 | Desalting treatment equipment and method for fertilizer utilization of cow breeding wastewater |
| CN113929194A (en) * | 2020-06-29 | 2022-01-14 | 佛山市顺德区美的饮水机制造有限公司 | Water treatment device |
| CN113929194B (en) * | 2020-06-29 | 2023-06-09 | 佛山市顺德区美的饮水机制造有限公司 | Water treatment device |
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