CN110846674A - Ozone electrolysis structure and electrolysis chamber - Google Patents
Ozone electrolysis structure and electrolysis chamber Download PDFInfo
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- CN110846674A CN110846674A CN201910983330.XA CN201910983330A CN110846674A CN 110846674 A CN110846674 A CN 110846674A CN 201910983330 A CN201910983330 A CN 201910983330A CN 110846674 A CN110846674 A CN 110846674A
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- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 63
- 239000012528 membrane Substances 0.000 claims abstract description 123
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 113
- NRTLIYOWLVMQBO-UHFFFAOYSA-N 5-chloro-1,3-dimethyl-N-(1,1,3-trimethyl-1,3-dihydro-2-benzofuran-4-yl)pyrazole-4-carboxamide Chemical compound C=12C(C)OC(C)(C)C2=CC=CC=1NC(=O)C=1C(C)=NN(C)C=1Cl NRTLIYOWLVMQBO-UHFFFAOYSA-N 0.000 claims description 6
- 235000013290 Sagittaria latifolia Nutrition 0.000 claims description 2
- 235000015246 common arrowhead Nutrition 0.000 claims description 2
- 230000001788 irregular Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 16
- 238000002360 preparation method Methods 0.000 abstract description 15
- 230000002035 prolonged effect Effects 0.000 abstract description 10
- 238000009825 accumulation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004659 sterilization and disinfection Methods 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/13—Ozone
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B13/00—Diaphragms; Spacing elements
- C25B13/02—Diaphragms; Spacing elements characterised by shape or form
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
- C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
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Abstract
An ozone electrolysis structure comprises an anode sheet and a cathode sheet which are arranged at intervals, wherein the anode sheet is positioned at a water inlet end, the cathode sheet is positioned at a water outlet end, and a main proton exchange membrane is arranged between the anode sheet and the cathode sheet; the anode sheet is provided with a water inlet, the main proton exchange membrane is provided with a water through hole, and the cathode sheet is provided with a convex structure on the side surface of the water inlet side. When the method is used for preparing ozone water, scale accumulation on the surface of the electrode can be avoided, the service life of the electrode is prolonged, the ozone preparation efficiency is improved, the electrolysis energy consumption is reduced, and the method has the advantages of high ozone water concentration, low energy consumption and long service life.
Description
Technical Field
The invention relates to the technical field of ozone electrolysis, and particularly relates to an ozone electrolysis structure and an electrolysis chamber.
Background
Electrolytic cells are commonly used to produce a variety of chemicals, and one of the applications of electrolytic cells is the production of ozone, which is considered an effective disinfectant because it is effective in killing pathogens and bacteria. Meanwhile, the prior art has applied the electrolytic cell to a plurality of fields of generating ozone water, and using the ozone water for medical care disinfection, household sanitation cleaning disinfection, plant and breeding industry disinfection, sewage treatment, and the like.
The basic structure of the existing electrolytic cell for producing ozone or ozone water is that the electrolytic cell consists of an anode and a cathode or consists of an anode, a cathode and a membrane which is clamped in the anode and plays a role of proton exchange, wherein the membrane plays other roles and is not clamped in the electrode. In the latter case, the membranes which function for proton exchange are often single and have the same technical characteristics. The proton exchange efficiency of the proton exchange membrane and the influence of the proton exchange membrane on the running water in the electrolytic chamber can greatly influence the concentration and efficiency of ozone or ozone water prepared in the electrolytic chamber. Obviously, the stronger the proton exchange capacity of the proton exchange membrane, the larger the contact area between the proton exchange membrane and water, the better the water carrying capacity, the lower the indirect energy consumption, and the better the performance of the corresponding electrolysis chamber.
Meanwhile, in the process of preparing ozone or ozone water by electrolyzing water in the electrolytic cell, the distance between the two electrodes and the membrane also determines the speed and efficiency of proton exchange on the proton exchange membrane to a certain extent.
In addition, in the field of ozone production using an electrolytic cell, the problem of scale treatment on the surface of an electrode has become a hot issue of general research in the field. The existing common solution is to open a hole on an electrode which is easy to scale, use pure water as raw water and increase the flow rate of water, thereby promoting the flushing and timely discharging of scale.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides an ozone electrolysis structure, solves the technical problems of low ozone preparation efficiency of an electrolytic cell and easy scale deposition on the surface of an electrode, and has the effects of reducing the energy consumption of the electrolytic cell and effectively prolonging the service life.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an ozone electrolysis structure comprises an anode sheet and a cathode sheet which are arranged at intervals, wherein the anode sheet is positioned at a water inlet end, the cathode sheet is positioned at a water outlet end, and a main proton exchange membrane is arranged between the anode sheet and the cathode sheet; the anode sheet is provided with a water inlet, the main proton exchange membrane is provided with a water through hole, and the cathode sheet is provided with a convex structure or a concave structure on the side surface of the water inlet side.
When the ozone electrolysis structure is used, the ozone electrolysis structure is arranged in the electrolysis chamber, when water is electrolyzed, after the water between the anode sheet and the main proton exchange membrane is initially electrolyzed by the anode sheet, one part of the water passes through the water through hole of the main proton exchange membrane to reach the gap between the main proton exchange membrane and the cathode sheet for electrolysis, and the other part of the water passes through the annular gap between the anode sheet and the main proton exchange membrane and then enters the gap between the main proton exchange membrane and the cathode sheet for electrolysis; the water electrolyzed by the cathode plate flows out from the annular gap between the main proton exchange membrane and the cathode plate, and collides with the convex structure or the concave structure to generate water flow vortex in the washing process, and the water flow vortex washes the surface of the cathode plate, so that the scale on the surface of the electrode is easier to wash away, the scale accumulation on the surface of the electrode is avoided, and the service life of the electrode is prolonged; meanwhile, the water inlet holes and the water through holes can enhance the mobility of water flow in the electrolytic chamber, so that the ozone preparation efficiency is improved, and the electrolytic energy consumption is reduced.
In conclusion, when the ozone water preparation device is used for preparing ozone water, scale accumulation on the surface of an electrode can be avoided, the service life of the electrode is prolonged, the ozone preparation efficiency is improved, the electrolysis energy consumption is reduced, and the ozone water preparation device has the advantages of high ozone water concentration, low energy consumption and long service life.
As an improvement of the invention, the side surface of the main proton exchange membrane on the water inlet side is provided with a convex structure or a concave structure.
As an improvement of the present invention, the projection structure includes at least one of a rectangular projection, a circular projection, a trapezoidal projection, an elliptical projection, a triangular projection, an arrow-shaped projection, a star-shaped projection, and an irregularly-shaped projection.
Further, protruding structure is arrow point shape arch, and arrow point shape arch sets up along the radial direction of limbers, and the bellied arrow head of arrow point shape is outwards.
As an improvement of the invention, the number of the convex structures is a plurality, and the convex structures are uniformly distributed along the same circumference by taking the center of the limber hole as the circle center.
As a refinement of the invention, at least one of the anode sheet and the cathode sheet is a diamond sheet.
As a modification of the present invention, the recess structure includes at least one of a rectangular recess, a circular recess, a trapezoidal recess, an oval recess, a triangular recess, an arrow-shaped recess, a star-shaped recess, and an irregularly-shaped recess.
As an improvement of the present invention, the recessed structure is an arrow-shaped recess, and the arrow-shaped recess is arranged along a radial direction of the water passage hole, and an arrow of the arrow-shaped recess faces outward.
As an improvement of the invention, the number of the concave structures is a plurality, and the concave structures are uniformly distributed along the same circumference by taking the center of the water through hole as the center of a circle.
As an improvement of the invention, the ratio of the distance between the anode sheet and the main proton exchange membrane to the distance between the cathode sheet and the main proton exchange membrane is 1: 3.
As an improvement of the invention, the distance between the anode sheet and the cathode sheet is less than or equal to 2.0 mm.
As an improvement of the invention, at least one layer of first auxiliary proton exchange membrane is arranged between the anode sheet and the main proton exchange membrane, and the first auxiliary proton exchange membrane is provided with a diversion hole.
Furthermore, a plurality of shunting holes are formed in the periphery of the flow guide hole on the first auxiliary proton exchange membrane, and the shunting holes are uniformly distributed along the same circumference by taking the center of the flow guide hole as the circle center.
As an improvement of the invention, at least one layer of second auxiliary proton exchange membrane is arranged between the cathode sheet and the main proton exchange membrane, and the second auxiliary proton exchange membrane is provided with a diversion hole.
Furthermore, a plurality of shunting holes are formed in the periphery of the flow guide hole on the second auxiliary proton exchange membrane, and the shunting holes are uniformly distributed along the same circumference by taking the center of the flow guide hole as the circle center.
The invention also provides an ozone electrolysis chamber.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an ozone electrolysis chamber comprises an electrolysis chamber body, wherein the electrolysis chamber body is provided with a water inlet and a water outlet, and an ozone electrolysis structure is arranged in the electrolysis chamber body.
Compared with the prior art, the technical scheme of the invention has the following innovation points and beneficial effects:
when the ozone water preparation device is used for preparing ozone water, scale accumulation on the surface of an electrode can be avoided, the service life of the electrode is prolonged, the ozone preparation efficiency is improved, the electrolysis energy consumption is reduced, and the ozone water preparation device has the advantages of high ozone water concentration, low energy consumption and long service life;
the plurality of proton exchange membranes are connected in series, so that the voltage on the voltage membrane can be reduced, the phenomenon that the membrane is broken, damaged or even scrapped when the working voltage is high is avoided, the service life is indirectly prolonged, and the raised structure or the recessed structure on the proton exchange membranes is beneficial to improving the solubility of ozone gas and effectively improving the concentration of ozone;
through set up protruding structure or sunk structure on the negative pole piece, make the negative pole piece surface unevenness, rivers take place the striking with protruding structure or sunk structure and produce the rivers swirl, and the rivers swirl washes away the negative pole piece surface to wash away electrode surface incrustation scale more easily, and accelerate reaction product exhaust speed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural view of an ozone electrolysis structure of example 1 of the present invention;
FIG. 2 is a schematic structural view of an ozone electrolysis structure of example 2 of the present invention;
description of reference numerals:
10-anode sheet, 11-water inlet hole, 20-cathode sheet, 21-convex structure or concave structure, 30-main proton exchange membrane, 31-convex structure or concave structure, 32-water through hole, 40-first auxiliary proton exchange membrane, 41-flow guide hole, 42-shunt hole, 50-second auxiliary proton exchange membrane, 51-flow guide hole and 52-shunt hole.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Example 1
Referring to fig. 1, an ozone electrolysis structure in fig. 1 is an embodiment 1 of the present invention, and includes an anode strip 10 and a cathode strip 20 that are arranged at intervals, the anode strip 10 is located at a water inlet end, the cathode strip 20 is located at a water outlet end, and a main proton exchange membrane 30 is disposed between the anode strip 10 and the cathode strip 20;
the anode sheet 10 is provided with a water inlet 11, the main proton exchange membrane 30 is provided with a water through hole 32, and the cathode sheet 20 is provided with a convex structure or a concave structure 21 on the side surface of the water inlet side.
When the ozone electrolysis structure is used, the ozone electrolysis structure is arranged in the electrolysis chamber, when water is electrolyzed, after the water between the anode sheet and the main proton exchange membrane is initially electrolyzed by the anode sheet, one part of the water passes through the water through hole of the main proton exchange membrane to reach the gap between the main proton exchange membrane and the cathode sheet for electrolysis, and the other part of the water passes through the annular gap between the anode sheet and the main proton exchange membrane and then enters the gap between the main proton exchange membrane and the cathode sheet for electrolysis; the water electrolyzed by the cathode plate flows out from the annular gap between the main proton exchange membrane and the cathode plate, and collides with the convex structure or the concave structure to generate water flow vortex in the washing process, and the water flow vortex washes the surface of the cathode plate, so that the scale on the surface of the electrode is easier to wash away, the scale accumulation on the surface of the electrode is avoided, and the service life of the electrode is prolonged; meanwhile, the water inlet holes and the water through holes can enhance the mobility of water flow in the electrolytic chamber, so that the ozone preparation efficiency is improved, and the electrolytic energy consumption is reduced.
In conclusion, when the ozone water preparation device is used for preparing ozone water, scale accumulation on the surface of an electrode can be avoided, the service life of the electrode is prolonged, the ozone preparation efficiency is improved, the electrolysis energy consumption is reduced, and the ozone water preparation device has the advantages of high ozone water concentration, low energy consumption and long service life.
In this embodiment, the main proton exchange membrane 30 is provided with a convex structure or a concave structure 31 on the side surface of the water inlet side. Is favorable for avoiding the accumulation of scale on the surface of the main proton exchange membrane.
Wherein, protruding structure includes at least one of rectangle arch, circular arch, trapezoidal arch, oval arch, triangle-shaped arch, arrow point shape arch, star shape arch and irregularly shaped arch. Also preferably, the projection structure is an arrow-shaped projection, and the arrow-shaped projection is provided along the radial direction of the water passage hole 32 with the arrow of the arrow-shaped projection facing outward. The arrow-shaped bulge has a guiding function, can guide water flow flushed on the arrow-shaped bulge to flow out around the limber hole, is favorable for improving the regularity of the water flow and enhancing the mobility of the water flow in the electrolytic chamber, further improves the ozone preparation efficiency and reduces the electrolytic energy consumption. Furthermore, the number of the convex structures is a plurality, and the plurality of convex structures 21 and 31 are equally distributed along the same circumference by taking the hole center of the water through hole 32 as the center of circle. The arrow-shaped bulges are uniformly distributed along the same circumference, so that a stable and continuous water flow channel can be formed between the adjacent arrow-shaped bulges.
Wherein, the sunk structure includes rectangle sunken, circular sunken, trapezoidal sunken, oval sunken, triangle-shaped sunken, arrow point shape sunken, star sunken and the sunken at least one in the irregularly shaped, and the sunk structure can arouse than the bigger rivers swirl of protruding structure, erodees the dirt effect more obviously. Further preferably, the recessed structure is an arrow-shaped recess, and the arrow-shaped recess is provided along a radial direction of the water passage hole with an arrow of the arrow-shaped recess facing outward. The arrow-shaped depressions have a guiding function, and can guide water flushed on the arrow-shaped depressions to flow out around the limber holes, so that the regularity of the water flow is improved, the mobility of the water flow in the electrolytic chamber is enhanced, the ozone preparation efficiency is further improved, and the electrolytic energy consumption is reduced. Furthermore, the number of the concave structures is a plurality, and the concave structures are distributed along the same circumference with the center of the limber hole as the center of a circle.
In the present embodiment, at least one of the anode sheet 10 and the cathode sheet 20 is a diamond sheet. The ratio of the distance between the anode sheet 10 and the main proton exchange membrane 30 to the distance between the cathode sheet 20 and the main proton exchange membrane 30 is 1:3, and the distance between the anode sheet and the cathode sheet is not more than 2.0 mm.
Please refer to the following table, the technical solution of the present embodiment is compared with two ozone electrolysis structures with different structures, wherein the anode strips, the main proton exchange membranes and the cathode strips adopted in the four technical solutions for comparison have the same external dimensions and material selection, and the parallel and opposite anode strips and main proton exchange membranes are provided with circular water through holes with the same dimensions and positions. In addition, the flow rate and flow rate of water were the same in the test group and the control group, and the test water was tap water. The differences between the three schemes are:
in the first contrast scheme, the main proton exchange membrane and the cathode sheet are both provided with no convex structures, and the distance ratio between the anode sheet and the main proton exchange membrane and the distance ratio between the cathode sheet and the main proton exchange membrane are not fixed.
In the second comparison scheme, the main proton exchange membrane is not provided with a convex structure, the cathode sheet is provided with a convex structure which is the same as that of the cathode sheet in the embodiment, and the distance ratio between the anode sheet and the main proton exchange membrane and the distance ratio between the cathode sheet and the main proton exchange membrane are not fixed.
In the third comparison scheme, the main proton exchange membrane is provided with a convex structure which is the same as that of the main proton exchange membrane in the embodiment, the cathode sheet is not provided with the convex structure, and the distance ratio between the anode sheet and the main proton exchange membrane and the distance ratio between the cathode sheet and the main proton exchange membrane are not fixed.
In the fourth comparison scheme, the main proton exchange membrane and the cathode sheet are respectively provided with the same raised structures as the embodiment, and the proportion of the distance between the anode sheet and the main proton exchange membrane to the distance between the cathode sheet and the main proton exchange membrane is not fixed. The service life limit is considered reached when the cell-making ozone water concentration becomes less than 70% of the test initial concentration, wherein the processed test data are as follows (wherein the operating voltage, current and ozone water concentration are averaged):
according to experimental data, compared with the four comparison schemes, the technical scheme of the embodiment has the advantages of high ozone water concentration, low energy consumption and long service life; compared with the conventional scheme of the comparison scheme, the concentration of the prepared ozone water can be improved by more than 30 percent; the service life is prolonged by at least 3 times.
Example 2
Referring to fig. 2, an ozone electrolysis structure in fig. 2 is an embodiment 2 of the present invention, and the embodiment is based on embodiment 1 and further modified as follows:
at least one first auxiliary proton exchange membrane 40 is arranged between the anode sheet 10 and the main proton exchange membrane 30, a flow guide hole 41 is formed in the first auxiliary proton exchange membrane 40, a plurality of shunting holes 42 are formed in the periphery of the flow guide hole 41 on the first auxiliary proton exchange membrane 40, and the shunting holes 42 are distributed uniformly along the same circumference by taking the hole center of the flow guide hole 41 as the circle center.
At least one layer of second auxiliary proton exchange membrane 50 is arranged between the cathode plate 20 and the main proton exchange membrane 30, a flow guide hole 51 is arranged on the second auxiliary proton exchange membrane 50, a plurality of shunting holes 52 are arranged around the flow guide hole 51 on the second auxiliary proton exchange membrane 50, and the plurality of shunting holes 52 are uniformly distributed along the same circumference by taking the hole center of the flow guide hole 51 as the circle center.
When using this embodiment 2 to electrolyze the electrolytic solution, after the water body between the anode plate and the first auxiliary proton exchange membrane is primarily electrolyzed by the anode plate, a part of the water body reaches the gap between the first auxiliary proton exchange membrane and the main proton exchange membrane through the flow guide hole of the first auxiliary proton exchange membrane, and the other part enters the gap between the first auxiliary proton exchange membrane and the main proton exchange membrane, the gap between the main proton exchange membrane and the second auxiliary proton exchange membrane, and the gap between the second auxiliary proton exchange membrane and the cathode plate through the circumferential gap between the anode plate and the first auxiliary proton exchange membrane. And one part of water entering the gap between the first auxiliary proton exchange membrane and the main proton exchange membrane enters the gap between the main proton exchange membrane and the second auxiliary proton exchange membrane through the water through holes on the main proton exchange membrane, and the other part of water passes through the annular gap between the first auxiliary proton exchange membrane and the main proton exchange membrane and flows into the gap between the main proton exchange membrane and the second auxiliary proton exchange membrane and the gap between the second auxiliary proton exchange membrane and the cathode plate. One part of water entering the gap between the main proton exchange membrane and the second auxiliary proton exchange membrane enters the gap between the second auxiliary proton exchange membrane and the cathode plate through the flow guide holes on the second auxiliary proton exchange membrane diaphragm, and the other part of water passes through the annular gap between the second auxiliary proton exchange membrane and the main proton exchange membrane and enters the gap between the second auxiliary proton exchange membrane and the cathode plate. The water body entering the gap between the second auxiliary proton exchange membrane and the cathode plate is electrolyzed by the cathode plate while scouring scale on the surface of the cathode plate, and the electrolyzed water body is discharged out of the electrolysis chamber through the gap between the second auxiliary proton exchange membrane and the cathode plate.
In summary, in the embodiment 2, the first auxiliary proton exchange membrane is arranged between the anode sheet and the main proton exchange membrane, and the second auxiliary proton exchange membrane is arranged between the cathode sheet and the main proton exchange membrane, so that the larger the contact area between the proton exchange membrane and water is, the better the water carrying capacity is, the more sufficient the water is electrolyzed, the higher concentration of ozone water is obtained, and the energy consumption can be indirectly reduced; moreover, the voltage on the voltage membrane can be reduced by connecting a plurality of proton exchange membranes in series, the phenomenon that the membranes are broken, damaged or even scrapped when the working voltage is high is avoided, the service life is indirectly prolonged, and the raised structures or the recessed structures on the proton exchange membranes are beneficial to improving the solubility of ozone gas and effectively improving the concentration of ozone.
Referring to the following table, the ozone electrolysis structure of the present example was compared with the ozone electrolysis structure of example 1. The service life limit is considered reached when the cell-making ozone water concentration becomes less than 70% of the test initial concentration, wherein the processed test data are as follows (wherein the operating voltage, current and ozone water concentration are averaged):
experimental data show that the technical scheme of the embodiment can improve the concentration of ozone water in a small range compared with the embodiment 1, but the working current is obviously lower than that of the electrolytic cell in the embodiment 1, which shows that the technical scheme of the embodiment has obvious energy-saving effect compared with the technical scheme in the embodiment 1, and the service life of the electrolytic cell is also slightly prolonged.
Example 3
The embodiment discloses an ozone electrolysis chamber, which comprises an electrolysis chamber body, wherein the electrolysis chamber body is provided with a water inlet and a water outlet, and the inside of the electrolysis chamber body is provided with an ozone electrolysis structure described in embodiment 1 or embodiment 2.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (15)
1. An ozone electrolysis structure, characterized in that: the device comprises an anode sheet and a cathode sheet which are arranged at intervals, wherein the anode sheet is positioned at a water inlet end, the cathode sheet is positioned at a water outlet end, and a main proton exchange membrane is arranged between the anode sheet and the cathode sheet; the anode sheet is provided with a water inlet, the main proton exchange membrane is provided with a water through hole, and the cathode sheet is provided with a convex structure or a concave structure on the side surface of the water inlet side.
2. The ozone electrolysis structure according to claim 1, wherein: the side surface of the main proton exchange membrane on the water inlet side is provided with a convex structure or a concave structure.
3. The ozone electrolysis structure according to claim 1 or 2, wherein: the protruding structure comprises at least one of a rectangular protrusion, a circular protrusion, a trapezoidal protrusion, an oval protrusion, a triangular protrusion, an arrow-shaped protrusion, a star-shaped protrusion and an irregular protrusion.
4. The ozone electrolysis structure according to claim 3, wherein: protruding structure is arrow shape arch, and arrow shape arch sets up along the radial direction of limbers, and arrow shape bellied arrow head is outwards.
5. The ozone electrolysis structure according to claim 4, wherein: the number of the protruding structures is a plurality, and the protruding structures are distributed equally along the same circumference by taking the hole center of the limber hole as the circle center.
6. The ozone electrolysis structure according to claim 1 or 2, wherein: the recessed structure includes at least one of a rectangular recess, a circular recess, a trapezoidal recess, an oval recess, a triangular recess, an arrow-shaped recess, a star-shaped recess, and an irregularly-shaped recess.
7. The ozone electrolysis structure according to claim 6, wherein: the recessed structure is arrow-shaped sunken, and arrow-shaped sunken along the radial direction setting of limbers, arrow-shaped sunken arrow outwards.
8. The ozone electrolysis structure according to claim 7, wherein: the number of the concave structures is a plurality, and the concave structures are distributed uniformly along the same circumference by taking the hole center of the limber hole as the circle center.
9. The ozone electrolysis structure according to claim 1, wherein: the ratio of the distance between the anode sheet and the main proton exchange membrane to the distance between the cathode sheet and the main proton exchange membrane is 1: 3.
10. The ozone electrolysis structure according to claim 9, wherein: the distance between the anode sheet and the cathode sheet is less than or equal to 2.0 mm.
11. The ozone electrolysis structure according to claim 1, wherein: at least one layer of first auxiliary proton exchange membrane is arranged between the anode sheet and the main proton exchange membrane, and the first auxiliary proton exchange membrane is provided with a flow guide hole.
12. The ozone electrolysis structure according to claim 11, wherein: a plurality of shunting holes are formed in the periphery of the flow guide hole on the first auxiliary proton exchange membrane, and are distributed uniformly along the same circumference by taking the center of the flow guide hole as the circle center.
13. The ozone electrolysis structure according to claim 1, wherein: at least one layer of second auxiliary proton exchange membrane is arranged between the cathode sheet and the main proton exchange membrane, and the second auxiliary proton exchange membrane is provided with a flow guide hole.
14. The ozone electrolysis structure according to claim 13, wherein: and a plurality of shunting holes are formed around the diversion hole on the second auxiliary proton exchange membrane, and are uniformly distributed along the same circumference by taking the hole center of the diversion hole as the circle center.
15. The utility model provides an ozone electrolysis chamber, includes the electrolysis chamber body, and the electrolysis chamber body is equipped with water inlet and delivery port, its characterized in that: an ozone electrolysis structure as claimed in any one of claims 1 to 14 is provided in the electrolysis chamber body.
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