CN106348397A - Electric desalinating device - Google Patents
Electric desalinating device Download PDFInfo
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- CN106348397A CN106348397A CN201510425317.4A CN201510425317A CN106348397A CN 106348397 A CN106348397 A CN 106348397A CN 201510425317 A CN201510425317 A CN 201510425317A CN 106348397 A CN106348397 A CN 106348397A
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Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a separating device for desalinating high-salinity wastewater through electromigration of charged ions in liquid in a direct current electrical field. The separating device comprises a set of direct current electrical field device, a separating chamber provided with a raw water inlet, a purified water outlet, a cationic water removing passage and an anionic water removing passage, and a set of electrically neutral ionic water treatment device. When the separating device works, raw water flows into the separating chamber continuously, anions and cations contained in the raw water do electromigration movement to both sides respectively under the action of an electrical field force while the anions and the cations move towards the purified water outlet, the anions and the cations are discharged out of the separating chamber through the cationic water removing passage and the anionic water removing passage, regather into concentrated brine or are respectively discharged after electrically neutral treatment, and most of ions in the water reaching the purified water outlet are removed, so that purified water is formed. The separating device does not use a membrane material, works continuously, ensures stable and consistent outlet water quality, and has a very low requirement on input raw water.
Description
Technical field
The present invention relates in a kind of utilization DC electric field separation liquid charged ion segregation apparatuss.
Background technology
Substantial amounts of high-salt wastewater can be produced in chemical industry, coloured, metallurgy industry produce, relatively wide in water resource
In the case of pine and government's relatively low discharge standard of implementation, can be directly discharged in environment water, by dilution
Diffusion eliminates or reduces its harmful effect to environment.The carrying of increase with Water Resources Pressure and discharge standard
Height, many enterprises have to face the problem processing simultaneously these waste water of reuse as far as possible.
The mainstream technology of process high-salt wastewater includes infiltration and reverse osmosis technology, electrodialytic technique, electricity are inhaled at present
Attached technology, ion exchange technique and adsorption technology.Wherein front 3 class technology all refer to more complicated membrane technology,
And exchange of particles and adsorption technology are used for processing during the higher waste water of salinity due to the too high discomfort of regeneration cost
In large-scale production.Electro-adsorption technology is relatively simple and production cost is not high, but because of interruption operation, effluent quality relatively
Poor and unstable, be not suitable for being used alone.
Content of the invention
The invention discloses a kind of electromigration in DC electric field for the charged ion in utilization liquid is real
The segregation apparatuss of existing high salinity waste water stable low cost desalination.
The concrete scheme of invention is: this device includes a set of electric field arrangement, and one is provided with original water inlet, net
Water out, cationic water remove passage and anionic water removes the disengagement chamber of passage.Electric field arrangement produces and covers
The DC electric field of the left and right directions of whole disengagement chamber.Pure water inlet is relative up and down with original water inlet, yin, yang from
Sub- water removal passage is located at disengagement chamber the right and left, and inside and outside insertion disengagement chamber, wherein separately the opening of intracavity has
Multiple, it is evenly distributed on the left and right sides wall of disengagement chamber.Anions and canons water remove passage effect be by
Because the anions and canons that electromigration accumulates in disengagement chamber left and right sides wall remove rapidly, prevent these ions from carrying
Electric charge produce the electric field in opposite direction with DC electric field separating intracavity, weaken separately intracavity zwitterion
Electromigration.The orientation of upper and lower, left and right here is oppositely arranged for convenience of description, above-mentioned
Segregation apparatuss can also entirely ratate 90 degrees or up and down, left and right reversion and not appreciable impact separation function.Existing
Some upper and lowers to setting certain impact is provided with device detail, such as air vent can only be arranged
Above related cavity configuration.But these are the common senses of technical field, unrelated in the creativeness of invention.
Here DC electric field refer to by midfeather certain distance two pieces of conductor plates respectively with DC source
The electric field that the two poles of the earth connect and produce between two conductor plates, can also describe in less strict setting the scene
Become electrostatic field.May not be steady state value using supply voltage under some special application scenarios in the present invention
Technical scheme, but the sense of current does not change, therefore adopt the saying of DC electric field more precisely.
During segregation apparatuss work, raw water continues to flow into disengagement chamber, and the anions and canons contained by the inside are going out to water purification
Mouth direction is done to contrary with direction of an electric field to identical direction while mobile in the presence of electric field force respectively
Electromigration campaign, eventually arrives at anions and canons water removal access portal and discharges disengagement chamber.And reach water purification
The water major part ion of outlet is removed, discharges disengagement chamber as water purification.
The anions and canons water discharging disengagement chamber can flow into charge neutrality chamber in electric field, becomes right after mixing
It is shown as outward electroneutral strong brine, discharge from brine outlet, electricity is as shown in Figure 2.Anions and canons
Water can also be discharged along different pipelines respectively and be connected neutralization electric charge by circuit after electric field, as shown in Figure 8,
Water after neutralization electric charge is referred to as anode water and negative electrode water.DC power supply circuit can also be passed through in electric field
Become anode water after neutralization electric charge respectively and negative electrode water each discharges electric field, as shown in Figure 10.In a word,
The final all products discharging desalter, including water purification, strong brine, negative electrode water, anode water it is also possible to
Including negative electrode gas, anode gas and cathodic metal, it is electric neutrality material.This part is processed discharges disengagement chamber
Anions and canons, the device finally becoming electric neutrality material is referred to as electric neutrality processing meanss.
The electric charge that first two situation anions and canons are carried removes electric field or against suffered electric field force direction in electric field
Need when mobile ion to be overcome electric field force do work by external force.The power of acting pumps into disengagement chamber by by raw water
Force (forcing) pump provides.Latter event overcomes electric field force effect acting by the DC source neutralizing electric charge, by cloudy,
It is in externally electroneutral material that cationic water is changed into by electrochemical reaction, including strong brine, metal simple-substance
Or gas, finally remove electric field.As anions and canons water directly mixes, then only produce strong brine.
As shown in Figure 6, the anion carrying negative charge from a to b, carry the cation of positive charge from
a1To b1, it is to move under the promotion of electric field force, by electric field, ion is done work, and anion warp
B-c-d-a-ga approach, cation is through b1-c1-d1-f1- me approach removal electric field is required to be promoted by external force,
Here it is by the liquid flowing, ion to be done work.Ga and me represents gas and metal respectively.Anions and canons
Directly generate gas, metal and electrode water in electric field under DC source effect, be to be overcome by DC source
Electric field does work to the electronics backward-acting power in conductor.
As shown in Figure 5, passage can be removed in anionic water and cationic water removes and sets at the opening of passage
Put most advanced and sophisticated 151 and point to the ion concentration funnel 15 that ionized water removes passage.Anions and canons concentration in funnel
Mechanism one be ion in the natural sediment of funnel tip under electric field force driving, two is similar conductive surface
The point effect that electric charge collects in conductor tip.Two effects are overlapping and enhanced here.
Concentration funnel can improve the concentration of anions and canons in anions and canons water, reduces anions and canons water
Yield, thus the yield of water purification can be improved.
As shown in Figure 12, the loose inertia mushy material 16 of intracavity setting can separated, to reduce
The adverse effect to electromigration for the convection action in liquid desalination processes, so that the salinity of water purification is further
Reduce.Inert porous material can be using being made up of ceramic fibre, glass fibre or polytetrafluoroethylene fibre
Loose core, it would however also be possible to employ polyethylene, polypropylene open celled foam section bar, preferentially using on direction of an electric field
The inert material multi-layer fiber sheet material of parallel dense arrangement.
These materials all significantly do not hinder electromigration campaign in electric field for the anions and canons, but can strongly press down
The convective motion of liquid processed.
If no special instructions, the cavity of this device, intracavity part, connecting line all preferably adopt nonconducting material
Material is made, as conventional polyester, polyethylene, polytetrafluoroethylmaterial material etc..
As especially sensitive to the precipitate pollution of pipeline in concrete application, can be using positively charged tree in water
Fat adopts negatively charged resin in water as the moon from water passage as sun from the inner layer material of water passage
Inner layer material.
Below in conjunction with specific embodiment, patent is described further.
Brief description
Fig. 1. direct current electric desalting apparatus principle schematic
Fig. 2. negative and positive mix the electric desalting apparatus generalized section of charge neutrality in water power field
Fig. 3. concentration funnel plate and ionized water removal channel cross-section axonometric drawing
Fig. 4. concentration funnel plate and ionized water removal channel cross-section top view
Fig. 5. zwitterion concentration principle schematic in concentration funnel
Fig. 6. charged ion motion acting, conversion schematic diagram in electric desalting apparatus electric field
Fig. 7. the electric desalting apparatus pump valve accessory connection diagram that negative and positive mix in water power field
Fig. 8. negative and positive are from the electric desalting apparatus generalized section of water power charge neutrality outside the venue
Fig. 9. negative and positive are from the electric desalting apparatus pump valve accessory connection diagram of water power charge neutrality outside the venue
Figure 10. the electric desalting apparatus generalized section of negative and positive charge neutrality in water power field
Figure 11. the desalter pump valve accessory connection diagram of negative and positive charge neutrality in water power field
Figure 12. desalter separation intracavity arranges inertia mushy material schematic diagram
Figure 13. the production system schematic diagram of desalter same electric field multiple-layer overlapped setting composition
Specific embodiment
Embodiment 1
Zwitterion water discharges the desalter of electric field after mixing in electric field, referring to accompanying drawing 2,3,4,7.
This device includes the generation being made up of DC source 21, electric field minus plate 221 and electric field positive plate 222
The electric field arrangement of DC electric field e, one contains original water inlet 11, pure water inlet 12, cationic water shifting
Go out passage 131 and anionic water removes the disengagement chamber 1 of passage 132.Pure water inlet 12 and original water inlet 11
Up and down relatively, electric field arrangement produces DC electric field e from left to right covering whole disengagement chamber, yin, yang from
Sub- water removal passage is located at disengagement chamber the right and left, and with the ionized water hybrid chamber 140 being similarly positioned in electric field
Connection.Brine outlet 14 is located at ionized water hybrid chamber upper end.
Ionized water hybrid chamber 140 can also be arranged on outside electric field, does not interfere with desalting effect, but drives powered
The energy consumption that ionized water leaves needed for electric field may increased.
Remove passage 131 in cationic water and anionic water removes and arranges concentration at each opening of passage 132
Funnel 15.Referring to accompanying drawing 3 and 4, from macroscopically, concentration funnel 15 is abound with disengagement chamber 1 near electric field
Minus plate and the both sides of electric field positive plate, the method that can be used in brill bellmouth on slab is made, each funnel
To be directed to disengagement chamber outer and remove passage 13 with ionized water and connect at tip 151.
Referring to accompanying drawing 7, the external raw water front pump 4 of original water inlet 11, pure water inlet and brine outlet each outer
Connect a choke valve 312 and 314.By control the respective flow-control water purification of choke valve 312 and 314 and
The yield ratio of strong brine.
This device inputs saliferous raw water, output water purification and strong brine.
Actually this device is applied to all of strong electrolytic solution of process, therefore can be used for strong acid, strong
The concentration of aqueous slkali or removing.Weak acid, weak base or the less organic salt of ionization constant can also be processed, if not
Same alkaloid, the separating-purifying of aminoacid, simply efficiency is lower, because also adjoint in electrotransport process
The ionization process of weak electrolyte.
The energy needing during the operating of this device is mainly provided by raw water front pump, anions and canons in separation process
Water take separated go out anions and canons move against electric field force direction in the electric field and be mixed into electric neutrality strong brine
The driving force source of process is the pressure that raw water front pump provides.The power supply producing DC electric field only maintains each electricity
The faint leakage current of circuit component, power very little.So this device is particularly suitable for not having high-power electricity to supply,
But there is the application scenario of sufficient direct driving force supply.As for fishing boat, warship, foreign-going ship desalinization.
In this device, the separation process of salinity and electrochemical process are respectively occurring at different parts, are not likely to produce and draw
Act the dirt separating path blockade, even if create to be also easy to clear up.
Compared with reverse osmosiss with current main flow desalting technology and electrodialytic technique, this device eliminates purchase cost
The all high membrane element with working service cost.
Compared with electro-adsorption technology, the desalination processes of this device are continuous, and effluent quality is stable and consistent,
Peripheral hardware pipeline pump valve is simpler, electrodeless corrosion losses problem.
This device is extremely low to input water quality requirement, to raw water salinity, electrical conductivity, iron content, calcium, magnesium etc. easily
The requirement of the ion concentration of deposition, all far below existing main flow desalting technology, generally only requires that elimination may blocking
The coarse granule of concentration funnel tip through hole.
Embodiment 2
Zwitterion water implements the desalter of charge neutrality outside electric field by circuit electrode.
Referring to accompanying drawing 8.On the basis of embodiment 1, extend anions and canons removal passage and by electric neutrality
Processing meanss move to outside electric field, and anions and canons water accumulates in 141,142 two ionized water charge neutrality respectively
Intracavity.In cationic water, metal electrode such as iron electrode is set with intracavity, arranges with intracavity in anionic water
Inert electrode such as graphite electrode, arranges connection circuit 143 between electrodes.With chamber in two ionized waters
Top and bottom are respectively provided with gas discharge outlet 1403 and 1404, liquid outlet 1401 and 1402.
Referring to accompanying drawing 9.In original water inlet external raw water front pump 4, choke valve 312 is set in pure water inlet.
In addition it is respectively provided with air bleeding valve with the Liang Ge gas outlet in chamber and two liquid outlets in anions and canons water
31401 and 31402, choke valve 31403 and 31404.
The advantage of this device is: due to charge buildup, meeting in anions and canons water in running and chamber
Self-assembling formation potential difference, can be higher than the metal ion deposition of hydrogen in metal by electrode potential using this potential difference
On electrode.Here anions and canons carry principle and the Van de Graaff generator that charge buildup produces potential difference
(van de graaff generator) is similar.
This device inputs raw water, and in addition to output water purification, in cation and chamber is also possible to output cathode metal, hydrogen
Gas, alkaline cathode liquid, in anion and chamber is also possible to export the anodic gas such as chlorine, oxygen and acid anode
Liquid.
Same as Example 1, the energy of this device consumption mostlys come from raw water front pump.
This device is suitable for the toxic heavy metal remove in raw water containing available high volence metal ion or needs
Ion or cathode and anode gas, liquid have the application places of value.Plant running process is obtaining
Obtain high-valency metal while water purification or eliminate toxic heavy metal.
Embodiment 3
Zwitterion water carries out the desalter of charge neutrality in electric field by circuit electrode.
Referring to accompanying drawing 10 and 11.The difference of this device and embodiment 2 be in two ionized waters and chamber 141 and
142 are respectively positioned in electric field, in cationic water and intracavity metal electrode and be located at anionic water in and chamber
There is not the potential difference being sufficient for that anions and canons produce electrochemical reaction between interior inert electrode, can only borrow
The effect helping external charge neutrality power supply 144 produces electrochemical reaction, reaches and makes charged ion water be changed into electric neutrality
And discharge the purpose outside electric field.
The connected mode of the external pump valve of this device is shown in accompanying drawing 11.
This device is identical with the product of embodiment 2, but its energy resource consumption is essentially from charge neutrality power supply.
The advantage of this device is that conveying pump pressure is not high, thus disengagement chamber is without bearing pressure, to device
Manufacture and the requirement of operating pressure control is relatively low, be suitable for the place having sufficient supply of electric power.
Embodiment 4
The production system of the multilamellar desalter of overlap is set in same electric field.
Referring to accompanying drawing and 13.In the production system of practical application, disengagement chamber thickness can be arranged and must compare
Thin, so so that anions and canons only need to make short-range electromigration can complete separation；Complete simultaneously
Detached anions and canons only need to be made short distance and can reach charge neutrality chamber against the motion of electric field force direction.So may be used
To improve the efficiency of energy utilization of this device.
Take up an area space in order to reduce, simplied system structure, multiple same identical desalter stacked arrangement are one
In individual DC electric field, and use common raw water front pump and input and output pipeline, one synchronous operation of composition
Overall production system.
Claims (7)
1. a kind of desalter, is characterized in that including a set of electric field arrangement, one be provided with original water inlet, water purification goes out
Mouth, anionic water remove passage and cationic water removes the disengagement chamber of passage, also include a set of ion water power
Neutral processing meanss；Electric field arrangement produces the DC electric field of the left and right directions covering whole disengagement chamber；Water purification
Outlet is relative up and down with original water inlet, and anions and canons water removal passage is located at the disengagement chamber left and right sides, passes through
The reduction of fractions to a common denominator is outside intracavity；Ionized water electric neutrality processing meanss accept cationic water removal passage and anionic water is moved
Go out the powered anions and canons water of passage outflow and convert them to electric neutrality material.
2. desalter as claimed in claim 1, is characterized in that separating the densely covered setting in the intracavity left and right sides described
Remove respectively outside most advanced and sophisticated sensing disengagement chamber and with anions and canons water the concentration funnel of channel connection.
3. desalter as claimed in claim 2, is characterized in that in the loose inertia of described separation intracavity setting
Mushy material.
4. desalter as claimed in claim 3, is characterized in that described ionized water electric neutrality processing meanss are one
In the individual ionized water being provided with brine outlet and chamber, in ionized water and chamber is logical with the removal of anions and canons water
Road connects.
5. desalter as claimed in claim 3, is characterized in that described ionized water electric neutrality processing meanss include
In the outer cationic water removing channel connection with cationic water of electric field and chamber and removing with anionic water
In the anionic water of channel connection and chamber, arranges metal electrode with intracavity, in anion in cationic water
In water and intracavity arranges inert electrode, connection circuit is set between electrodes, in two ionized waters and chamber
Top and bottom be respectively provided with gas discharge outlet and liquid outlet.
6. desalter as claimed in claim 3, is characterized in that described ionized water electric neutrality processing meanss include
In electric field with cationic water remove channel connection cationic water in and chamber and with anionic water remove
In the anionic water of channel connection and chamber, arranges metal electrode with intracavity, in anion in cationic water
In water and intracavity arrange inert electrode, between electrodes connect DC source, the anode of DC source with
Inert electrode connects, and the negative electrode of DC source is connected with metal electrode, the upper end with chamber in two ionized waters
It is respectively provided with gas discharge outlet and liquid outlet with lower end.
7. desalter as claimed in claim 4, is characterized in that in described ionized water and chamber is located in electric field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510425317.4A CN106348397A (en) | 2015-07-13 | 2015-07-13 | Electric desalinating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510425317.4A CN106348397A (en) | 2015-07-13 | 2015-07-13 | Electric desalinating device |
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| Publication Number | Publication Date |
|---|---|
| CN106348397A true CN106348397A (en) | 2017-01-25 |
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|---|---|---|---|
| CN201510425317.4A Pending CN106348397A (en) | 2015-07-13 | 2015-07-13 | Electric desalinating device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN109987779A (en) * | 2017-12-29 | 2019-07-09 | 宁波方太厨具有限公司 | A kind of water filtering system |
| CN109991288A (en) * | 2017-12-29 | 2019-07-09 | 宁波方太厨具有限公司 | Heavy metal ion content detection device in a kind of water |
| CN109991383A (en) * | 2017-12-29 | 2019-07-09 | 宁波方太厨具有限公司 | A kind of water quality detection system |
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