CN109761317A - A kind of magnetic confinement electrochemical reactor - Google Patents
A kind of magnetic confinement electrochemical reactor Download PDFInfo
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- CN109761317A CN109761317A CN201910224738.9A CN201910224738A CN109761317A CN 109761317 A CN109761317 A CN 109761317A CN 201910224738 A CN201910224738 A CN 201910224738A CN 109761317 A CN109761317 A CN 109761317A
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Abstract
The present invention relates to a kind of magnetic confinement electrochemical reactors, including including magnetic confinement electrochemical reactor shell, permanent magnetic pole array, water inlet connecting tube and water outlet connecting tube and electrode assembly, permanent magnetic pole array is mounted on the outside of the shell one, the shell both side ends are mounted with water inlet connecting tube and water outlet connecting tube, and the shell is interior at least provided with one group of electrode assembly, and the electrode assembly is successively arranged alternately and is composed by positive electrode, insulation nethike embrane, negative electrode.The configuration of the present invention is simple, operating cost is low, high conversion efficiency, and low energy consumption, is applicable in the industrial circles such as waste water control.
Description
Technical field
The present invention relates to a kind of electrochemical reactors, and particularly a kind of magnetic confinement electrochemical reactor, is mainly used in
Industrial wastewater treatment field.
Background technique
The principle of traditional electrochemical reactor is mainly based upon electrolysis water principle, directly applies in positive electrode and negative electrode
A certain size electric field, electrolyte is electrolysed, and generates the grains such as hydroxide ion, hydrogen ion, hydroxyl radical free radical and active oxygen
Son.Especially for the electrocatalytic oxidation equipment of trade effluent, the particles such as hydroxyl radical free radical and active oxygen of generation are in waste water
Organic matter carry out oxygenolysis, generate the substances such as carbon dioxide and water, achieve the purpose that administer industrial wastewater.Due to using electricity
Chemical method administers trade effluent or electrolyzed water disinfecting etc. and haves the shortcomings that energy consumption is high.For energy saving, various electrochemistry
Reactor is studied to reduce energy consumption.Some uses 3 D electrode reactor, increases polarization efficiency, improves mass transport coefficient；
Some uses diaphragm electrolysis reactor, prevents influencing each other for cathodic region and anode region polarized products, improves the conversion of reactant
Efficiency saves power consumption；Stirrer paddle is arranged in some between pole plate, improves the mobility of solution, improves at electrochemical reactor
Manage the efficiency of trade effluent.Nevertheless, the energy consumption of electrochemical reactor does not obtain reduction largely.This be because
Improving process program for these is the mixing uniformity etc. for being to improve that electrochemical reaction is active ion, not from essence
The upper active particle concentration for improving electrochemical reaction and generating.By taking electrocatalytic oxidation technique administers industrial wastewater as an example, it is being passed through one
Under quantitative current condition, by electrochemical reaction, water electrolysis is generated into hydroxide ion and hydrogen ion, hydroxide ion is in sun
The hydroxyl radical free radical of condition, this hydroxyl radical free radical have very high oxidation in the generation of the substance reactions such as electrode surface and hole
Current potential can quickly aoxidize the organic matter in water.And in traditional electrochemical reaction appts, hydroxyl is generated in the unit time
The concentration that ion generates hydroxyl radical free radical is certain, and concentration is very low, and it is when improving electrochemistry that tradition, which improves technique,
Mass transport coefficient, there is no inherently improve the unit time in generate hydroxyl radical free radical concentration, so electrochemistry is anti-
There is no the substantive reductions obtained largely for the energy consumption answered.
Summary of the invention
The object of the invention is in order to solve the above technical problems, provide, a kind of structure is simple, operating cost is low, turns
Change high-efficient, the magnetic confinement electrochemical reactor of low energy consumption.
Technical solution includes magnetic confinement electrochemical reactor shell, permanent magnetic pole array, water inlet connecting tube and water outlet
Mouthful connecting tube and electrode assembly are mounted with permanent magnetic pole array on the outside of the shell one, and the shell both side ends are mounted with
Water inlet connecting tube and water outlet connecting tube, the shell is interior at least provided with one group of electrode assembly, and the electrode assembly is by sun
Electrode, insulation nethike embrane, negative electrode are successively arranged alternately and are composed.
The permanent magnetic pole array is made of permanent magnet more than 5000 Gauss of magnetic induction intensity, and magnet can be with
It is cylindrical, all shapes such as square；
The magnetism of two neighboring magnetic pole the same side in the permanent magnetic pole array is opposite；
The distance between each adjacent two magnetic pole in the permanent magnetic pole array is between 1cm-10cm, preferably 5cm；
The electrode assembly is placed in electrochemical reactor enclosure interior, and is close proximity to the shell one for being mounted with permanent magnetic pole array
Inside；
The positive electrode is by iridium ruthenium, iridium tantalum titanium positive electrode, platinum electrode and diamond film electrode with electrocatalytic properties
Deng all body block positive electrodes or netted positive electrode, thickness is in 3mm or less；
The oxygen evolution potential 1.5V or more of the positive electrode, preferably 2.7 V(reference mark hydrogen electrode current potentials)；
The insulation mesh is with corrosion resistance with a thickness of 2mm Plastic net film below, preferred thickness 0.3mm；
The negative electrode can be without the plates such as ferromagnetic stainless steel, copper, titanium, graphite or mesh electrode, and thickness exists
3mm or less.
The problem of for background technique, inventor improves existing electrochemical reactor, in electrification
Learn the array for being provided on a lateral surface of reactor shell and being made of permanent magnetic pole；Permanent magnetic pole in the array is same
The polarity of one side is opposite；The intracorporal electrode assembly of electrochemical reactor shell is close proximity to the shell for being mounted with permanent magnetic pole array
One inside, and electrode assembly is placed in magnetic field；The ion generated in electrode assembly, such as hydroxide ion, due to by
To the constraint of Loulun magnetism, generate highdensity region, thus largely improve in magnetic confinement region activity from
Sub- concentration effectively enhances electrochemical reaction efficiency, improves transformation efficiency, energy saving.
The utility model has the advantages that
Present invention employs the sides that the array that permanent magnetic pole is constituted is arranged in electrochemical reactor, so that the line of magnetic induction is parallel
The electrode surface of electrochemical reactor shell inner electrode assembly, it is therefore, positive and negative between yin, yang the two poles of the earth during electrolysis
Ion will receive the constraint of Loulun magnetism in orthogonal electric and magnetic fields, cause to generate high density in electrode surface attachment
Active ion region, enhance electrochemical reaction efficiency, improve transformation efficiency, reduce energy consumption；Reaction structure of the present invention
Simply, it is applicable in the improvement industrial circle of sewage.
Detailed description of the invention
Fig. 1 is the structure chart of electrochemical reactor of the invention.
Fig. 2 is the front view of electrochemical reactor of the invention, and figure right side is electrode assembly partial enlarged view.
Fig. 3 is that positive electrode in electrode assembly, insulation nethike embrane and negative electrode arrange schematic diagram.
1 permanent magnetic pole, 2 water outlet connecting tubes, 3 water inlet connecting tubes, 4 electrochemical reactor shells, 5 electrode assemblies,
501 positive electrodes, 502 insulation nethike embranes, 503 negative electrodes.
Specific embodiment
Embodiment 1:
Referring to Fig. 1, Fig. 2 and Fig. 3.This implementation electrochemical reactor shell has the PP material of 5 mm of thickness to be process, length
600 mm, 32 mm of width, 50 mm of height.Permanent magnetic pole array in magnetic confinement electrochemical reactor is by magnetic field strength
5000 Gausses, the permanent cylindrical magnetic pole composition that bottom surface radius of circle is 5mm, are placed in the water outlet side of electrochemistry shell,
The distance between adjacent two magnetic pole is 5cm, and the magnetic pole on the same face is magnetic opposite；Electrode assembly is by 2 pieces of meshed anodes, and 4
The insulation nethike embrane of block PP material and 3 pieces of mesh cathodes, according to negative electrode, insulation net, positive electrode, insulation net, negative electrode, insulation
Net, positive electrode, insulation net and negative electrode sequence successively alternately form.Electrode assembly is placed in electrochemical reactor shell,
And it is close proximity to that case inside for being mounted with permanent magnetic pole array, it is ensured that electrode assembly is in the difference range of magnetic field.Positive electricity
Pole using mesh be about 3 mm, 2 mm of thickness, oxygen evolution potential 1.5V(reference mark hydrogen electrode current potential) iridium ruthenium electrode, cathode use
Mesh is about 4 mm, and 2 mm of thickness does not have ferromagnetic stainless (steel) wire electrode, and insulation nethike embrane is 3 mm of aperture, 1 mm's of thickness
Plastic net film.It is 1 square metre that entire electrode assembly, which has positive electrode effective area,.It is 2000mg/L mould by the COD containing phenol
Quasi- industrial wastewater, is entered in magnetic confinement electrochemical reactor by water inlet connecting tube, applies current density to electrode assembly
For 200 A/m2Electric current, by 1 hour electrolytic decomposition, the COD of simulated wastewater is down to 200mg/L hereinafter, energy consumption is about 35kw/
Kg COD saves half than traditional electrochemical reactor.
Embodiment 2:
Referring to Fig. 1, Fig. 2 and Fig. 3.This implementation electrochemical reactor shell is process by the PP material of thickness 5mm, length 600
Mm, 32 mm of width, 50 mm of height.Permanent magnetic pole array in magnetic confinement electrochemical reactor is 8000 by magnetic field strength
Gauss, the permanent cylindrical magnetic pole composition that bottom surface radius of circle is 5mm, is placed in the water outlet side of electrochemistry shell, adjacent
The distance between two magnetic poles are 5 cm, and the magnetic pole on the same face is magnetic opposite；Electrode assembly is by 2 pieces of meshed anodes, 4 pieces of PP
The insulation nethike embrane of material and 3 pieces of mesh cathodes, according to negative electrode, insulation net, positive electrode, insulation net, negative electrode, insulation net, sun
The sequence of electrode, insulation net and negative electrode successively alternately forms.Electrode assembly is placed in electrochemical reactor shell, and is abutted
In that case inside for being mounted with permanent magnetic pole array, it is ensured that electrode assembly is in the difference range of magnetic field.Ensure electrode group
Part is in the difference range of magnetic field.Positive electrode is about 3mm, thickness 2mm, 1.6 V(reference mark hydrogen electrode electricity of oxygen evolution potential using mesh
Position) iridium tantalum electrode, cathode is about 4mm using mesh, and thickness 2mm does not have ferromagnetic stainless (steel) wire electrode, and insulation nethike embrane is
Aperture 3mm, the Plastic net film of thickness 1mm.It is 1 square metre that entire electrode assembly, which has positive electrode effective area,.It is by COD
3000mg/L contains lipid industrial wastewater, is entered in magnetic confinement electrochemical reactor by water inlet connecting tube, to electrode group
It is 500A/m that part, which applies current density,2Electric current, by 1 hour electrolytic decomposition, COD is down to 500mg/L hereinafter, energy consumption is about
30kw/kg COD is the one third of traditional electrochemical reactor energy consumption.
Embodiment 3:
Referring to Fig. 1, Fig. 2 and Fig. 3.This implementation electrochemical reactor shell is process by the PP material of thickness 5mm, length
600mm, width 32mm, height 50mm.Permanent magnetic pole array in magnetic confinement electrochemical reactor is 8000 by magnetic field strength
Gauss, the permanent cube magnetic pole that bottom surface side length is 10 mm form, and are placed in the water outlet side of electrochemistry shell, and adjacent two
The distance between magnetic pole is 10 cm, and the magnetic pole on the same face is magnetic opposite；Electrode assembly is by 3 pieces of anodes, 4 pieces of insulation nets
Film and 4 pieces of cathode compositions, overall thickness is 1.8 cm, and electrode assembly is placed in electrochemical reactor shell, and is close proximity to placement
There is that case inside of permanent magnetic pole array, it is ensured that electrode assembly is in the difference range of magnetic field.Positive electrode uses mesh about
For 3mm, thickness 2mm, 1.6 V(reference mark hydrogen electrode current potential of oxygen evolution potential) iridium tantalum electrode, cathode is about 4mm using mesh, thick
It spends 2mm and does not have ferromagnetic stainless (steel) wire electrode, insulation nethike embrane is aperture 4mm, the Plastic net film of thickness 1mm, entire electrode
It is 1 square metre that component, which has positive electrode effective area,.The industrial wastewater for being about 1000mg/L by ammonia nitrogen concentration, is connected by water inlet
Adapter tube enters in magnetic confinement electrochemical reactor, and applying current density to electrode assembly is 200 A/m2Electric current, it is small by 2
When electrolytic decomposition, ammonia nitrogen to 5mg/L is the four of traditional electrochemical reactor energy consumption hereinafter, energy consumption is about 25kw/kg NH3
/ mono-.
Claims (8)
1. a kind of magnetic confinement electrochemical reactor, which is characterized in that including magnetic confinement electrochemical reactor shell, permanent magnetic pole
Array, water inlet connecting tube and water outlet connecting tube and electrode assembly are mounted with permanent magnetic pole array on the outside of the shell one,
The shell both side ends are mounted with water inlet connecting tube and water outlet connecting tube, and the shell is interior at least provided with one group of electrode group
Part, the electrode assembly are successively arranged alternately and are composed by positive electrode, insulation nethike embrane, negative electrode.
2. magnetic confinement electrochemical reactor according to claim 1, it is characterised in that the permanent magnetic pole array is by magnetic
Permanent magnet composition more than 5000 Gauss of induction, magnet can be cylinder, all shapes such as square.
3. magnetic confinement electrochemical reactor according to claim 1, it is characterised in that the phase in the permanent magnetic pole array
The magnetism of adjacent two magnetic pole the same sides is opposite.
4. magnetic confinement electrochemical reactor according to claim 1, it is characterised in that every adjacent two in the magnetic pole array
The distance between a magnetic pole is between 1cm-10cm, preferably 5cm.
5. magnetic confinement electrochemical reactor according to claim 1, it is characterised in that the positive electrode is by with electro-catalysis
All block positive electrodes or the netted positive electricity such as iridium ruthenium, iridium tantalum titanium positive electrode, platinum electrode and the diamond film electrode of property
Pole, thickness is in 3mm or less.
6. positive electrode according to claim 4, feature is in 1.5 V or more of its oxygen evolution potential, preferably 2.7V(reference mark hydrogen electricity
Electrode potential).
7. magnetic confinement electrochemical reactor according to claim 1, it is characterised in that the insulation mesh be have it is corrosion-resistant
Property is with a thickness of 2mm nethike embrane below, preferred thickness 0.3mm.
8. magnetic confinement electrochemical reactor according to claim 1, it is characterised in that the negative electrode can be without iron
Plates or the mesh electrodes such as magnetic stainless steel, copper, titanium, graphite, thickness is in 3mm or less.
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| US6309519B1 (en) * | 1998-10-20 | 2001-10-30 | Adept Technologies A/S | Reactor for treating liquids using variable flow paths |
| US6468423B1 (en) * | 1999-10-29 | 2002-10-22 | The Japan Steel Works, Ltd. | Electromagnetic water treatment apparatus |
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