CN206940502U - A kind of electrochemical desalting water softening device of efficiently spontaneous crystallization - Google Patents
A kind of electrochemical desalting water softening device of efficiently spontaneous crystallization Download PDFInfo
- Publication number
- CN206940502U CN206940502U CN201720427053.0U CN201720427053U CN206940502U CN 206940502 U CN206940502 U CN 206940502U CN 201720427053 U CN201720427053 U CN 201720427053U CN 206940502 U CN206940502 U CN 206940502U
- Authority
- CN
- China
- Prior art keywords
- cathode chamber
- water
- efficiently
- chamber
- spontaneous crystallization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 130
- 238000002425 crystallisation Methods 0.000 title claims abstract description 37
- 230000008025 crystallization Effects 0.000 title claims abstract description 37
- 230000002269 spontaneous effect Effects 0.000 title claims abstract description 30
- 238000011033 desalting Methods 0.000 title claims abstract description 27
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 34
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 18
- 230000004888 barrier function Effects 0.000 claims description 17
- 239000001569 carbon dioxide Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 9
- 239000011148 porous material Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 6
- 230000001502 supplementing effect Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000003011 anion exchange membrane Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 238000005341 cation exchange Methods 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- 229910001018 Cast iron Inorganic materials 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000010425 asbestos Substances 0.000 claims description 2
- 239000000919 ceramic Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 229910000510 noble metal Inorganic materials 0.000 claims description 2
- 229910052895 riebeckite Inorganic materials 0.000 claims description 2
- 238000004513 sizing Methods 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000010408 film Substances 0.000 claims 1
- 239000004745 nonwoven fabric Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 28
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 abstract description 9
- 229910001425 magnesium ion Inorganic materials 0.000 abstract description 9
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 abstract description 7
- 229910001424 calcium ion Inorganic materials 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 7
- 239000013078 crystal Substances 0.000 description 22
- 239000011777 magnesium Substances 0.000 description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 14
- 229910000019 calcium carbonate Inorganic materials 0.000 description 14
- 239000011575 calcium Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 238000005868 electrolysis reaction Methods 0.000 description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 7
- 230000008901 benefit Effects 0.000 description 7
- 229910052791 calcium Inorganic materials 0.000 description 7
- 238000010612 desalination reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 230000003542 behavioural effect Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000008233 hard water Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000013618 particulate matter Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- WGKMWBIFNQLOKM-UHFFFAOYSA-N [O].[Cl] Chemical compound [O].[Cl] WGKMWBIFNQLOKM-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- CJTCBBYSPFAVFL-UHFFFAOYSA-N iridium ruthenium Chemical compound [Ru].[Ir] CJTCBBYSPFAVFL-UHFFFAOYSA-N 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The utility model discloses a kind of electrochemical desalting water softening device of efficiently spontaneous crystallization, including some groups of two Room electrolytic cells, power supply and control system；Power supply provides power supply with control system for electrolytic cell；Electrolytic cell is separated into anode chamber and cathode chamber；Minus plate is located in cathode chamber, and is connected by cathode terminal with powering with the negative terminal of control system；Positive plate is located in anode chamber, and is connected by anode terminal with powering with the positive terminal of control system；The side of cathode chamber and anode chamber is respectively equipped with least one delivery port, and at least one water inlet is provided with the cathode chamber of corresponding side and anode chamber, or cathode chamber and anode chamber share at least one water inlet.The utility model is passed through suitable current value, calcium ions and magnesium ions in water are disposably removed, and hardly adhering to incrustation scale on minus plate in processing procedure, efficiency is up to 90%, greatly improves the disposal ability of equipment and is easy to implement digitlization and Automated condtrol.
Description
Technical field
The utility model belongs to electrochemical softening of water technical field, and more particularly to a kind of electrochemistry of efficiently spontaneous crystallization takes off
Salt softens water treatment facilities.
Background technology
Using electrochemical techniques carry out water body desalination dirty removing processing, just had early in 2006 document (Desalination,
2006,201:150) report, then also there is many domestic literatures and patent (XI AN JIAOTONG UNIVERSITY Subject Index, 2009,43 (5):104；
Patent discloses CN105523611A, CN204198498U) reported, and a certain degree of application is obtained in engineering practice.Phase
Than in traditional calcium hydroxide tenderizer, electrochemical desalting softened water technology space is small, processing speed is fast, need not use wadding
Solidifying agent non-secondary pollution, waste solid are few, simple to operate, and Digital Control can be achieved, have very high economic benefit
And environmental benefit.For the descaling and antiscaling field of cooling circulating water, with the past traditional chemical adding method thereof and electromagnetic technique,
Ultrasonic technology is compared, in can be by the calcium ions and magnesium ions into dirt in water in a manner of incrustation scale deposits the advantages of electrochemical techniques
Taken out from water, and cycles of concentration can be improved, reach the purpose of water-saving and emission-reducing.
Existing electrochemical apparatus is mainly used in the descaling and antiscaling field of cooling circulating water, to improve scale removal efficiency, China
Patent discloses the patents such as CN105621538A, CN201923867U and CN105329985A and has carried out phase to electrochemical descaling equipment
The optimization design answered, its innovative point are fully to optimize electrochemical apparatus internal structure, expand cathode area, simplify operation, carry
The treatment effeciency and disposal ability of high equipment.
In order to break away from the limiting factor of polar plate area size, and Israel's document (Desalination, 2010,263:285；
Journal of Membrance Science,2013,445:88) a kind of new processing method is proposed, is handed over using cation
Change film and electrolytic cell is divided into anode chamber and cathode chamber, after pending water is flowed through into cathode chamber, introduce in outside crystallizer
Row induces crystallization to improve pole plate disposal ability, and utilization rate of electrical reaches 50%.Chinese patent CN204198498U utilizes scraper
Minus plate dirt is wiped off to provide small nucleus increase crystallization specific surface area, though the utilization rate of electric energy is improved to a certain extent,
But its utilization rate of electrical is still relatively low, one is the increase in the power consumption of negative electrode dynamic rotation part, and two be due to that its auxiliary electrode connects
Positive electricity and in cathode chamber, its surface inherently analyses oxygen (chlorine) and produces H+, part OH caused by negative electrode can be consumed-And cause electricity
Energy utilization rate reduces, and it refers to that need to add flocculant causes secondary pollution and the increase of processing cost in subsequent technique in addition,
Its other equipment intracavity bottom does not have barrier film to separate the Room of negative and positive two, and embodiment middle-jiao yang, function of the spleen and stomach pole room acid water reciprocation cycle always
Part H+Cathode chamber must be entered, can also reduce the utilization rate of electric energy.Most of water body is all that hard water i.e. basicity is less than in life
Hardness (content for being equal to heavy carbonic root is less than calcium and magnesium amount), therefore can not be completely eliminated in the case of not supplementary carbon dioxide hard
Degree.Though patent CN106277369A also refers to that negative and positive interpolar adds barrier film, also require that cathode chamber delivery port need to be connected outside one
Crystallizer induces crystallization, and crystalliser volume is huge and ageing low, because the supply without carbon dioxide equally exists hardness water condition
The purpose that hardness reaches thorough softened water can not be completely eliminated down.
The content of the invention
The utility model provides a kind of electrochemical desalting water softening device of efficiently spontaneous crystallization, by setting some groups
Two Room electrolytic cells, electric current is passed through into electrolytic cell so that strong basicity region PH >=10 is formed in cathode chamber, using caused by electrolysis
OH-So that Ca2+Generate CaCO3Crystal, with Mg2+Generate Mg (OH)2Crystal, and as the progress of electrolysis, cathode chamber pH value increase
Greatly, CaCO3Crystal agglomerate is behavioral reinforcing and quickly forms nucleus so that oversaturated CaCO3With Mg (OH)2Suspension is efficient certainly
Hair crystallization, avoids the secondary pollution for inducing crystallization and additional flocculating agents and bringing, reduces process, and on the time
Fast a lot, small investment, equipment occupation space are also few, and disposal ability is big.
The technical solution of the utility model is as follows：
A kind of electrochemical desalting water softening device of efficiently spontaneous crystallization, including some groups of two Room electrolytic cells, power supply and control
System processed；Described power supply provides power supply with control system for two described Room electrolytic cells；
Two described Room electrolytic cells are separated by barrier film or pore plate, are separated into anode chamber and cathode chamber；Minus plate is located at institute
In the cathode chamber stated, and it is connected by cathode terminal with described power supply with the negative terminal of control system；Positive plate position
In in described anode chamber, and it is connected by anode terminal with described power supply with the positive terminal of control system；Institute
The cathode chamber stated and the side of described anode chamber are respectively equipped with least one delivery port, the described negative electrode in corresponding side
Be respectively equipped with least one water inlet on room and described anode chamber, or described cathode chamber and described anode chamber share to
A few water inlet.
The invention also discloses the electrochemical desalting of efficient spontaneous crystallization to soften method for treating water, is specially：Treat soft
The water of change flows through cathode chamber, after leading to a suitable electric current, strong basicity region, system pH >=10 is formed in cathode chamber, electrolysis produces
OH-, with HCO3 -Reaction generation CO3 2-, then with the Ca in water body2+With reference to generation CaCO3Crystal；With Mg2+With reference to generation Mg
(OH)2Crystal, and the increase of the progress cathode chamber pH value with electrolysis, CaCO3The zeta current potentials of crystal reduce, crystal agglomerate behavior
Strengthen and quickly form nucleus, the supersaturated CaCO of cathode chamber is flowed out with high-velocity flow3With Mg (OH)2Suspension using this nucleus as
Growing point simultaneously shoots up, and realizes spontaneous crystallization, is generated as macroscopic solid particulate matter, suspends in water, then is sunk
Drop or filtering, that is, complete softening.
The electrolyte of described anode chamber can be alone cycle or pending hard water.
Described electric current is according to I >=1.01Q η (M+2M2) be calculated, wherein, I be battery lead plate electric current, unit：A；η
For target softening rate, unit：1；Q be cathode chamber water-carrying capacity, unit：L/s；Work as M0＞ M1When, M=M0；Work as M0＜ M1And η≤
[(M0+M2)/(M1+M2)] when, M=M0；Work as M0＜ M1And η ＞ [(M0+M2)/(M1+M2)] when, M=2M1-M0；M0To treat softened water
Basicity, unit：mgCaCO3/L；M1To treat the calcium hardness of softened water, unit：mgCaCO3/L；M2To treat that the magnesium of softened water is hard
Degree, unit：mgCaCO3/L。
When the carbonate in water body, heavy carbonic root are not enough to eliminate calcium hardness, M is additionally included in0<M1And η ＞ [(M0+
M2)/(M1+M2)] when, enough air or carbon dioxide are passed through into catholyte by air or carbon dioxide gas supplementing opening.
Specifically, the amount for being passed through air or carbon dioxide is calculated according to below equation：Air is passed through under normal temperature and pressure
Flow according to Q1=0.61Q (M1-M0) be calculated, wherein, Q1To be passed through the flow of air, unit to cathode chamber：L/s；Often
CO is passed through under normal temperature and pressure2Flow according to Q0=2.45Q (M1-M0)·10-4It is calculated, wherein, Q0To be passed through CO to cathode chamber2
Flow, unit：L/s.
Preferably, between two described Room electrolytic cells it is in parallel, series connection or string and composite joint.
Preferably, air or carbon dioxide gas supplementing opening are provided with the water inlet of described cathode chamber.
Preferably, filter or settling tank are provided with the delivery port of described cathode chamber.
Preferably, it is provided with gas-liquid separation between the delivery port and described filter or settling tank of described cathode chamber
Device, when the disposal ability increase of electrochemical desalting of the present utility model softening water treatment facilities, the delivery port of cathode chamber can be external
One gas-liquid separator, and the hydrogen after separation is collected, with the economic benefit for making full use of the energy to reach higher.
Preferably, described positive plate is one kind in carbon electrode, noble metal electrode or titanium-based metal oxide electrode；Institute
The minus plate stated is one kind in the sizing conductive material such as stainless steel, cast iron, graphite, aluminium or copper.
Preferably, described barrier film is anion-exchange membrane, cation-exchange membrane, Bipolar Membrane, asbestos fibre film, nonwoven
One kind in cloth, chemical fibre filter cloth or ceramic diaphragm；Described pore dividing plate is with small pore and does not influence conductive plastics
Thin plate, such as polytetrafluoroethylplastic plastic thin plate.
Preferably, the 2~20mm of distance of described barrier film or dividing plate away from minus plate.
Compared with prior art, the beneficial effects of the utility model are as follows：
First, the electrochemical desalting water softening device of a kind of efficiently spontaneous crystallization of the present utility model, sets some groups of two Room
Electrolytic cell, it is passed through by I >=1.01Q η (M+2M2) calculate a suitable electric current so that strong basicity region, system are formed in cathode chamber
PH >=10, utilize OH caused by electrolysis-So that Ca2+Generate CaCO3Crystal, with Mg2+Generate Mg (OH)2Crystal, and with electrolysis
Progress, cathode chamber pH value increase, CaCO3Crystal agglomerate is behavioral reinforcing and quickly forms nucleus, flows out the supersaturation of cathode chamber
Suspension realized largely or entirely calcium ions and magnesium ions disposably remove in water using this nucleus as the efficient spontaneous crystallization of growing point,
And incrustation scale will not be adhered on minus plate, without inducing crystallization and additional flocculating agents, secondary pollution is avoided, reduces process step
Suddenly, with the advantages that softening efficiency high, small investment, equipment occupation space are few, and disposal ability is big；
2nd, the electrochemical desalting water softening device of a kind of efficiently spontaneous crystallization of the present utility model, in the water inlet of cathode chamber
Mouth is provided with air or carbon dioxide gas supplementing opening, and by Q1=0.61Q (M1-M0) calculate be passed through the flow of air and by Q0=
2.45Q(M1-M0)·10-4The flow for being passed through carbon dioxide is calculated, to provide the HCO of sufficient amount3 -, reach required softening rate；
3rd, the electrochemical desalting water softening device of a kind of efficiently spontaneous crystallization of the present utility model, according to being passed through electric current
Calculation formula and the calculation formula for being passed through air or carbon dioxide, calculate current value and are passed through the speed of air or carbon dioxide
Rate, NC postprocessing and automation are easy to implement, it is colourless environment friendly and pollution-free using cleaning electric energy as unique " inorganic agent ".
Brief description of the drawings
Fig. 1 is in same current density 25mA/cm2Under, using the utility model method and existing method to same circulation
The contrast curve of cold water process effect；
Fig. 2 be using the utility model method handle the turbidity of obtained softened water and untreated water before to according to
Piece；
Fig. 3 is the structural representation of the One In and Two Out two-compartment cell with barrier film；
Fig. 4 is the structural representation of the Two In and Two Out two-compartment cell with barrier film；
Fig. 5 is the structural representation of the system of multiple electric tank cathodes series connection softening of water；
Fig. 6 is the structural representation of the system of multiple electric tank cathode parallel connection softenings of water；
Fig. 7 is that multiple processing modules in parallel, the series connection and composite joint even softening of water of segment anode Water circulation is
The structural representation of system.
Embodiment
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate
The utility model, rather than limit the scope of protection of the utility model.Those skilled in the art are according to this in actual applications
The modifications and adaptations that utility model is made, still fall within the scope of protection of the utility model.
Prior art is all based on the general principle that incrustation scale separates out in negative electrode.Existing domestic and foreign literature report and specially
Industry art personnel are to the understanding of electrochemical descaling technical principle, and incrustation ion is in the combination of cathode zone and basicity, formation
Visually sightless size even nanoscale suspended particulate substance below 50 microns, particulate matter or is attached on negative electrode or enters huge
Big outside induction crystallizer, is removed even with flocculant, and utilization rate of electrical is extremely low (≤15%), to the place of water body
Reason ability and depth deficiency, or even the defects of cause the secondary pollution of water body.
Nascent state crystal grain is generally in the nanoscale suspended particulate substance that cathode zone is formed, and the mistake of nucleus is formed by crystal grain
Journey more expends the time, so, prior art often additional nucleus to shorten the time.Existing electrolytic tank electrolysis is only apart from minus plate
In 1~2mm regions, the alkaline environment to be formed needed for supersaturated suspension can be reached, do not ensure that whole catholyte all reaches
Required alkaline environment, therefore, it is existing need to introduce it is outside induce crystallizer, to improve crystalline rate.The utility model is first
According to I >=1.01Q η (M+2M2) a suitable electric current is calculated, then by adjusting pole plate spacing, to ensure that whole catholyte is equal
Reach required alkaline environment, system pH >=10 so that the solution for flowing out cathode chamber is supersaturated CaCO3With Mg (OH)2Suspend
Liquid, realizes efficient spontaneous crystallization, and efficiency is up to 90%.
As depicted in figs. 1 and 2, at the invention also discloses a kind of electrochemical desalting softened water of efficient spontaneous crystallization
Reason method, comprises the following steps：
(1) electrolytic cell is separated into by anode chamber 7 and cathode chamber 9 by barrier film or pore plate 6, and by positive plate 8 and negative electrode
Plate 10 is respectively placed in anode chamber 7 and cathode chamber 9；
(2) electric current is led to, described electric current is according to I >=1.01Q η (M+2M2) be calculated, wherein, I is the electricity of battery lead plate
Stream, unit：A；η is target softening rate, unit：1；Q be cathode chamber water-carrying capacity, unit：L/s；Work as M0＞ M1When, M=M0；When
M0＜ M1And η≤[(M0+M2)/(M1+M2)] when, M=M0；Work as M0＜ M1And η ＞ [(M0+M2)/(M1+M2)] when, M=2M1-M0；M0
To treat the basicity of softened water, unit：mgCaCO3/L；M1To treat the calcium hardness of softened water, unit：mgCaCO3/L；M2To wait to soften
The magnesium hardness of water, unit：mgCaCO3/L；
(3) water to be softened flows through cathode chamber 9, after energization, the formation strong basicity region in cathode chamber 9, and system pH >=10,
OH caused by electrolysis-, with HCO3 -Reaction generation CO3 2-, then with the Ca in water body2+With reference to generation CaCO3Crystal；With Mg2+With reference to
Generate Mg (OH)2Crystal, the OH of sufficient amount is produced in the unit interval of cathode chamber 9-, and guarantee and H caused by anode chamber+
It will not largely meet under high-velocity flow and consume each other；And with the increase of cathode chamber pH value, CaCO3The zeta potential drops of crystal
Low, crystal agglomerate is strengthened and quickly forms nucleus, and the supersaturated CaCO of cathode chamber 9 is flowed out with high-velocity flow3With Mg (OH)2Suspend
Liquid as growing point and is shot up using this nucleus, realizes spontaneous crystallization, is generated as macroscopic solid particulate matter, is suspended in water
In, then settled or filtered, that is, complete softening；In addition, at normal temperatures and pressures, and in M0<M1And η ＞ [(M0+M2)/(M1+
M2)] when, also need to be passed through appropriate air or carbon dioxide into catholyte, in case in water heavy carbonic root be not enough to eliminate calcium and magnesium it is hard
Heavy carbonic root is supplemented when spending, realizes the purpose of complete softened water.
The utility model is enough to eliminate most of or even complete in the water for flow through cathode chamber using generation in the negative electrode unit interval
OH needed for portion's hardness-, and pass through incrustation scale CaCO3The zeta current potentials of crystal reduce, and crystal agglomerate is behavioral reinforcing, so as to realize certainly
Hair crystallization；Current reach settling tank or during filters, and scale particles have been grown into sufficiently large can be settled in the short period
Or filter out, and then reach the purpose of softened water.
Embodiment 1
The electrochemical desalting softening method for treating water of a kind of efficiently spontaneous crystallization of the present utility model, for handling a certain follow
Ring cooling water replenishment, specifically includes following steps：
When electrochemical reaction occurs, negative electrode produces a large amount of OH-, anode then produces same amount of H+, specifically, used
Positive plate is titanium-based ruthenium iridium electrode, and minus plate used is SUS304 stainless steels, and barrier film used is cation-exchange membrane, negative and positive two
The spacing of pole plate and film is 10mm；The anode chamber and the cathode chamber is passed through same recirculated water to be softened；Electric current used is 1.03A, current
Measure as 1.4ml/s, softening rate 65%, do not supplement carbon dioxide, the residence time is 30s to water body in a device, battery lead plate
Size is 7.5cm*5.5cm；Incrustation scale is prevented to a certain extent on minus plate because cathode surface produces a large amount of bubbles
Attachment, along with the souring of high-velocity flow can make on minus plate almost without attached dirt.With the carry out pH value increase of electrolysis, carbon
The zeta current potentials of sour calcium crystal reduce, and crystal agglomerate is behavioral reinforcing and quickly forms nucleus, oversaturated CaCO3With Mg (OH)2It is outstanding
Supernatant liquid as growing point and is shot up using this nucleus, and scale particles have been grown into sufficiently large when settling tank or filter is reached
Particle, it can settle or filter within a short period of time.And anolyte can produce a large amount of H in the process+Can be by the carbonic acid in water body
Root, heavy carbonic root disappear, while anode also produces other strong oxidizing property Fungicidal substances and plays a part of sterilizing.Whole cloudy
Existing equal electromagnetic field between anode, also there is the effect of " activation " water to a certain extent.From above-mentioned narration, if by this skill
Art method is applied to for recirculated water descaling and antiscaling field, and its scale inhibition antiscale ability is three aspects：, can be simultaneously in cathode zone
The basicity and hardness of equivalent are reduced, and the basicity of equivalent negative electrode amount can be also reduced in anode region, and between whole anode and cathode
Equal electromagnetic field " activation " water also plays scale inhibition effect.I.e. if this method is used for recirculated cooling water descaling and antiscaling technical elements, can
Reducing 1mgCaCO3Water body 2mgCaCO is also reduced while/L hardness3/ L basicity.The reduction of hardness in water body so that water
Body scaling tendency significantly slows down, and this part of function can be referred to as " scale removal ", and the reduction of basicity and equal electromagnetism in water body
" activation " effect of field to water, this part of function can be referred to as " scale inhibition ".In addition, in same current density 25mA/cm2
Under, existing method carries out sofening treatment to same recirculated cooling water, the contrast of its treatment effect and the present embodiment 1 as shown in figure 1,
Curve 1 is the curve that the present embodiment 1 is handled, and Fig. 2 is the curve handled with the method for application number 201520499432.1；Fig. 2 is profit
The turbidity that obtained softened water and untreated water before is handled with the utility model method contrasts photo.Anode and cathode effluent quality
Test result, as shown in Table 1, be computed utilization rate of electrical up to 92.17%.
Table one
Embodiment 2
A kind of electrochemical desalting of efficiently spontaneous crystallization of the present utility model is softened into method for treating water, for handling Anhui
The cooling circulating water moisturizing of a certain steam power plant, with embodiment 1, difference is other steps：Electric current is 0.73A, flow
1.5mL/s, softening rate 99.9%, the distance of minus plate to barrier film is 15mm, and barrier film is anion-exchange membrane.Anode and cathode water outlet
The test result of water quality, as shown in Table 2, utilization rate of electrical is computed up to 95.0%.
Table two
Embodiment 3
A kind of electrochemical desalting of efficiently spontaneous crystallization of the present utility model is softened into method for treating water, for handling Shandong
The cooling circulating water of a certain coke-oven plant, with embodiment 1, difference is other steps：Electric current 3.88A, minus plate to barrier film
Spacing be 30mm, barrier film is the nylon filtering cloth of 1000 mesh, CO2It is 0.27mL/s to be passed through flow velocity, and target softening rate is 75%, water
Flow is 2ml/s, the test result of anode and cathode effluent quality, as shown in Table 3, is computed utilization rate of electrical up to 84.1%.
Table three
As shown in figure 3 to figure 7, the electrochemical desalting water softening device of a kind of efficiently spontaneous crystallization of the present utility model, including
Some groups of two Room electrolytic cells (not indicated in figure), power supply and control system (not indicated in figure)；Described power supply and control system
Power supply is provided for two described Room electrolytic cells；
Two described Room electrolytic cells are separated by barrier film or pore plate 6, are separated into anode chamber 7 and cathode chamber 9；Minus plate 10
In in described cathode chamber 9, and connect by cathode terminal (not indicated in figure) and the negative pole of described power supply and control system
Terminal (not indicated in figure) is connected；Positive plate 8 is located in described anode chamber 7, and (is not indicated in figure) by anode terminal
It is connected with described power supply with the positive terminal (not indicated in figure) of control system；In described cathode chamber 9 and described sun
The side of pole room 7 is respectively equipped with least one delivery port 4 or 5, described cathode chamber 9 and described anode in corresponding side
At least one water inlet 1,2 or 3 is respectively equipped with room 7, or described cathode chamber 9 and described anode chamber 7 share at least one
Individual water inlet 1,2 or 3.
Electrochemical desalting water softening device of the present utility model is further described through below by way of several embodiments, to
Illustrate the utility model in specific practical application, the connected mode that each part may be taken, but it is not limited to following reality
Apply example.
Embodiment 4
A kind of electrochemical desalting using above-mentioned efficient spontaneous crystallization softens the device of method for treating water softening of water, with
Exemplified by single two-compartment cell, as shown in figure 3, water inlet 1 and delivery port 5 are respectively equipped with the both ends of described cathode chamber 9,
Described water inlet 1 is provided with air or carbon dioxide gas supplementing opening 11, and the first gas-liquid point is sequentially connected with described delivery port 5
From device 13 and filter or settling tank 12, delivery port 4 is provided with described anode chamber 7；Or as shown in figure 4, in described the moon
The both ends of pole room 9 are respectively equipped with water inlet 1 and delivery port 5, and air or carbon dioxide gas supplementing opening are provided with described water inlet 1
11, filter or settling tank 12 are connected with described delivery port 5, water inlet 2 is provided with the both ends of described anode chamber 7 and is gone out
The mouth of a river 4.Wherein, whether the first gas-liquid separator 13 is set in the delivery port of single two-compartment cell cathode chamber, with specific reference to
In electrolytic process, the number of hydrogen generating quantity and determine.
Specifically softening method is：Treat that softened water (is added from entrance 1 or 3 into electrolytic cell depending on water body basicity situation at 11
Appropriate air or carbon dioxide), after stopping certain time, by the outflow of outlet 5.In normal operation, electricity occurs for cathode plate surface
Chemical reaction produces enough OH-, so that most of calcium ions and magnesium ions are transformed into the supersaturated suspension of insoluble calcium and magnesium salt, with electrolysis
Carry out pH value increase, CaCO3With Mg (OH)2The zeta point potential drops of crystal are low, and the behavioral reinforcing quick formation of its crystal agglomerate is brilliant
Core, oversaturated CaCO3With Mg (OH)2Shoot up as nucleus to realize spontaneous crystallization, after growing into bulky grain, divided
Water body is separated out to reach the purpose of softened water.The aqueous solution for treating softened water or other suitable electrical conductivity can be passed through in anode chamber, with
Form whole current loop, it is ensured that electrochemical reaction is efficiently smoothed out.
Embodiment 5
In order to further improve softening degree, the hardness of water is thoroughly eliminated, can be cascaded multiple cathode chambers composition
A kind of system of softening of water, softening of water is done into depth sofening treatment, i.e., after hard water enters a cathode chamber processing, through sedimentation
Filtering, water body enters back into another or the cathode chamber of multiple electrolytic cells does depth sofening treatment, requires until reaching softening, such as schemes
Shown in 5, wherein, the cathode chamber quantity of series connection need to be according to the water quality situation of institute's softened water and depending on being actually needed.
Embodiment 6
In terms of this technology is used for into industry cooling recirculated water descaling, and blocking scaling.Can will be more to further improve disposal ability
Individual cathode chamber, which is connected in parallel, forms a kind of system of softening of water, carries out scale removal to cooling circulating water, i.e. cooling circulating water is same
When enter the processing of multiple cathode chambers after, sedimentation filtration is to reach scale removal purpose, as shown in fig. 6, wherein, cathode chamber quantity in parallel
According to handled water situation and depending on being actually needed.
Embodiment 7
When this technology is used to substitute calcium hydroxide softened water technology, a large amount of hard water need to be handled, and will to the degree of softened water
Ask high, by above-mentioned parallel connection, series system single use or a kind of system of softening of water of composition is used in combination, in order to save
The water outlet of anode is diverted to one or several cathode chambers with water, and supplements enough air or carbon dioxide is done at softening
Reason, and the negative electrode water of whole system done into gas-liquid separation, collects green energy resource hydrogen, fluid carry out sand filter out obtain after dirt it is soft
Change water, as shown in Figure 7.
The desalination that device of the present utility model is used for water body softens, and Digital Control and DSC remote automation controls can be achieved
System, the hardness of water body is in 100mgCaCO after being softened using the device desalination3/ below L, or even calcium ions and magnesium ions are completely eliminated, make
The cost that can make desalination softened water with the device drops to below 1.00RMB/t, and the optimisation technique scheme is used for cooling circulating water
The fouling probability of recirculated water can be effectively reduced in terms of descaling and antiscaling and improves cycles of concentration to more than 10, reaches the effect of water-saving and emission-reducing
Fruit, there are very high economic benefit and environmental benefit using the optimisation technique scheme.
The utility model preferred embodiment disclosed above is only intended to help and illustrates the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, it is only described embodiment also not limit the utility model.Obviously, according to this theory
The content of bright book, it can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is in order to preferably
Principle and practical application of the present utility model is explained, so that skilled artisan can be best understood by and utilize this
Utility model.The utility model is only limited by claims and its four corner and equivalent.
Claims (9)
1. it is a kind of efficiently spontaneous crystallization electrochemical desalting water softening device, it is characterised in that including some groups of two Room electrolytic cells,
Power supply and control system；Described power supply provides power supply with control system for two described Room electrolytic cells；
Two described Room electrolytic cells are separated by barrier film or pore plate, are separated into anode chamber and cathode chamber；Minus plate is positioned at described
In cathode chamber, and it is connected by cathode terminal with described power supply with the negative terminal of control system；Positive plate is located at institute
In the anode chamber stated, and it is connected by anode terminal with described power supply with the positive terminal of control system；Described
The side of cathode chamber and described anode chamber is respectively equipped with least one delivery port, corresponding side described cathode chamber and
At least one water inlet is respectively equipped with described anode chamber, or described cathode chamber and described anode chamber share at least one
Individual water inlet.
2. the electrochemical desalting water softening device of efficiently spontaneous crystallization according to claim 1, it is characterised in that described
It is in parallel, series connection or string and composite joint between two Room electrolytic cells.
3. the electrochemical desalting water softening device of efficiently spontaneous crystallization according to claim 1, it is characterised in that described
The water inlet of cathode chamber be provided with air or carbon dioxide gas supplementing opening.
4. the electrochemical desalting water softening device of efficiently spontaneous crystallization according to claim 1, it is characterised in that described
The delivery port of cathode chamber be provided with filter or settling tank.
5. the electrochemical desalting water softening device of efficiently spontaneous crystallization according to claim 4, it is characterised in that described
Cathode chamber delivery port and described filter or settling tank between be provided with gas-liquid separator.
6. the electrochemical desalting water softening device of efficiently spontaneous crystallization according to claim 1, it is characterised in that described
Positive plate is one kind in carbon electrode, noble metal electrode or titanium-based metal oxide electrode.
7. the electrochemical desalting water softening device of efficiently spontaneous crystallization according to claim 1, it is characterised in that described
Minus plate is one kind in stainless steel, cast iron, graphite, aluminium or copper sizing conductive material.
8. the electrochemical desalting water softening device of efficiently spontaneous crystallization according to claim 1, it is characterised in that described
Barrier film is in anion-exchange membrane, cation-exchange membrane, Bipolar Membrane, asbestos fibre film, non-woven fabrics, chemical fibre filter cloth or ceramic diaphragm
One kind；Described pore plate is with small pore and does not influence conductive sheet plastic.
9. the electrochemical desalting water softening device of efficiently spontaneous crystallization according to claim 1, it is characterised in that described
Barrier film or the distance of pore dividing plate and minus plate are 2~20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720427053.0U CN206940502U (en) | 2017-04-21 | 2017-04-21 | A kind of electrochemical desalting water softening device of efficiently spontaneous crystallization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720427053.0U CN206940502U (en) | 2017-04-21 | 2017-04-21 | A kind of electrochemical desalting water softening device of efficiently spontaneous crystallization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206940502U true CN206940502U (en) | 2018-01-30 |
Family
ID=61359567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720427053.0U Expired - Fee Related CN206940502U (en) | 2017-04-21 | 2017-04-21 | A kind of electrochemical desalting water softening device of efficiently spontaneous crystallization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206940502U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231600A (en) * | 2018-11-12 | 2019-01-18 | 上海辨洁环保科技有限公司 | A kind of industrial circulating water dirt purification device and its descaling method |
| CN110467242A (en) * | 2019-07-30 | 2019-11-19 | 河海大学 | A kind of pretreatment of high-turbidity water original position and synchronous device for generating electric energy |
| CN113149153A (en) * | 2021-05-13 | 2021-07-23 | 中国十七冶集团有限公司 | Building site drinking water treatment facilities |
| CN113200615A (en) * | 2021-04-19 | 2021-08-03 | 中科合成油内蒙古有限公司 | Method and system for electrochemically reducing hardness of wastewater |
| CN113461119A (en) * | 2021-07-13 | 2021-10-01 | 青岛理工大学 | Electric microfiltration device system for synchronously removing hardness and harmful metals of drinking water |
| CN114105376A (en) * | 2021-09-30 | 2022-03-01 | 中海油天津化工研究设计院有限公司 | Electrochemical hardness removal method for high-hardness low-carbonate alkalinity coal gasification grey water |
| IT202100011924A1 (en) * | 2021-05-10 | 2022-11-10 | Treelium Sa | Electrochemical water treatment device |
-
2017
- 2017-04-21 CN CN201720427053.0U patent/CN206940502U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231600A (en) * | 2018-11-12 | 2019-01-18 | 上海辨洁环保科技有限公司 | A kind of industrial circulating water dirt purification device and its descaling method |
| CN110467242A (en) * | 2019-07-30 | 2019-11-19 | 河海大学 | A kind of pretreatment of high-turbidity water original position and synchronous device for generating electric energy |
| CN110467242B (en) * | 2019-07-30 | 2022-04-26 | 河海大学 | High-turbidity waste water in-situ pretreatment and synchronous electric energy generation device |
| CN113200615A (en) * | 2021-04-19 | 2021-08-03 | 中科合成油内蒙古有限公司 | Method and system for electrochemically reducing hardness of wastewater |
| IT202100011924A1 (en) * | 2021-05-10 | 2022-11-10 | Treelium Sa | Electrochemical water treatment device |
| WO2022238861A1 (en) * | 2021-05-10 | 2022-11-17 | Treelium Sa | Electromechanical device for treating water |
| CN113149153A (en) * | 2021-05-13 | 2021-07-23 | 中国十七冶集团有限公司 | Building site drinking water treatment facilities |
| CN113461119A (en) * | 2021-07-13 | 2021-10-01 | 青岛理工大学 | Electric microfiltration device system for synchronously removing hardness and harmful metals of drinking water |
| CN114105376A (en) * | 2021-09-30 | 2022-03-01 | 中海油天津化工研究设计院有限公司 | Electrochemical hardness removal method for high-hardness low-carbonate alkalinity coal gasification grey water |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206940502U (en) | A kind of electrochemical desalting water softening device of efficiently spontaneous crystallization | |
| CN107235564B (en) | A kind of the electrochemical desalting softening method for treating water and its device of efficient spontaneous crystallization | |
| CN102745843B (en) | System and method for treating industrial circulating cooling water | |
| CN110526439A (en) | A kind of reuse method and device of RO strong brine | |
| JP5824793B2 (en) | Magnesium recovery method and magnesium recovery device | |
| CN108840406A (en) | Electrolysis reactor and trade effluent electrolysis pretreatment system | |
| CN105540955A (en) | Electrochemical descaling device | |
| CN105731696B (en) | Silicon carbide pickling waste water reclaiming treatment process | |
| CN105800800B (en) | DSA Electrochemical Reactor with Three-dimensional Electrode water stabilization devices and technique | |
| CN115676973B (en) | High-concentration complex wastewater treatment and resource recovery system and working method thereof | |
| CN209397043U (en) | A kind of industrial circulating water dirt purification device | |
| CN216273532U (en) | Electromagnetic coupling sea water desalination device | |
| CN214496002U (en) | Reverse osmosis concentrated water recycling treatment system | |
| CN206173053U (en) | Combine electrochemistry of cation permselective membrane to remove hardness and disinfect water treatment facilities | |
| CN212127829U (en) | Reverse osmosis concentrate electrolytic recovery device | |
| CN104163528A (en) | Circulating high-efficiency water saving system | |
| CN211644723U (en) | Wastewater treatment system with zero discharge of desulfurization wastewater | |
| CN106830494A (en) | Full-automatic circulating cooling water purification and treatment of dirt system | |
| CN206486382U (en) | It is electrolysed soft water system and water purifier | |
| CN110759434A (en) | Intelligent soft scale treatment device and method | |
| CN215161876U (en) | High-efficient recycling system of passivation waste water | |
| CN220537931U (en) | Electrolytic hydrogen production system based on seawater | |
| CN212127828U (en) | Device for removing nitrogen and phosphorus in sewage by magnesium anode electrodialysis method | |
| CN206502718U (en) | Full-automatic circulating cooling water purification and treatment of dirt system | |
| CN215403556U (en) | Recycling treatment system for thermal power plant circulating water sewage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180130 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |