CN217052425U - Ion membrane electrolytic tank - Google Patents
Ion membrane electrolytic tank Download PDFInfo
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- CN217052425U CN217052425U CN202122854643.0U CN202122854643U CN217052425U CN 217052425 U CN217052425 U CN 217052425U CN 202122854643 U CN202122854643 U CN 202122854643U CN 217052425 U CN217052425 U CN 217052425U
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- 239000012528 membrane Substances 0.000 claims abstract description 96
- 238000005192 partition Methods 0.000 claims abstract description 75
- 238000000576 coating method Methods 0.000 claims description 45
- 239000011248 coating agent Substances 0.000 claims description 44
- 239000007788 liquid Substances 0.000 claims description 33
- 150000002500 ions Chemical class 0.000 claims description 20
- 239000003792 electrolyte Substances 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 11
- 238000005868 electrolysis reaction Methods 0.000 claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- UBEWDCMIDFGDOO-UHFFFAOYSA-N cobalt(2+);cobalt(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Co+2].[Co+3].[Co+3] UBEWDCMIDFGDOO-UHFFFAOYSA-N 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 229910052741 iridium Inorganic materials 0.000 claims description 4
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 229910052719 titanium Inorganic materials 0.000 claims description 4
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 claims description 3
- 229910001925 ruthenium oxide Inorganic materials 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 16
- 238000006243 chemical reaction Methods 0.000 abstract description 12
- 239000007789 gas Substances 0.000 description 20
- 239000000460 chlorine Substances 0.000 description 14
- 229910052801 chlorine Inorganic materials 0.000 description 13
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 9
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 8
- -1 chlorine ions Chemical class 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- 239000012267 brine Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- GPKIXZRJUHCCKX-UHFFFAOYSA-N 2-[(5-methyl-2-propan-2-ylphenoxy)methyl]oxirane Chemical compound CC(C)C1=CC=C(C)C=C1OCC1OC1 GPKIXZRJUHCCKX-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The application provides an ionic membrane electrolytic cell, which comprises an anode chamber, a cathode chamber, an ionic membrane, an anode electrode, a cathode electrode, a first anode chamber partition plate and a first cathode chamber partition plate, wherein the anode chamber and the cathode chamber are separated by the ionic membrane, the first anode chamber partition plate and the first cathode chamber partition plate; the ionic membrane is clamped and fixed by the first partition plate of the anode chamber and the first partition plate of the cathode chamber; the anode chamber comprises an anode chamber second partition plate, the cathode chamber comprises a cathode chamber second partition plate, and the anode chamber second partition plate and the cathode chamber second partition plate clamp and fix the anode chamber first partition plate and the cathode chamber first partition plate. The ionic membrane electrolytic cell has good operation stability, reduces the electric energy loss in electrolytic reaction by reducing the distance between the anode and the cathode to the thickness of the ionic membrane, improves the service life of the ionic membrane, can save energy and reduce consumption, saves production cost and improves the electrolytic efficiency.
Description
Technical Field
The application relates to the technical field of electrochemistry, in particular to an ionic membrane electrolytic cell.
Background
In the ion membrane electrolysis process, strong brine is sent into an anode chamber of an ion membrane electrolysis cell, chlorine is generated after chlorine ions lose electrons, an ion exchange membrane arranged between a positive electrode and a negative electrode can selectively permeate sodium ions, the sodium ions permeate an ion membrane under the action of an electric field force to enter a cathode chamber, and the concentration of brine is reduced. The cathode chamber of the electrolytic cell completes the electrolysis reaction of water, the water is ionized into hydrogen and hydroxide ions, and the ion membrane has the repulsion function on the chloride ions and the hydroxide ions. The ion membrane method electrolytic process ensures the quality of the product alkali, and the purity of chlorine and hydrogen is high. The ion membrane method for producing alkali in the chlor-alkali industry has the advantages of high purity of produced alkali, low energy consumption, small pollution, stable production, small occupied area, convenient operation and management and the like.
However, in the process of using the ionic membrane electrolytic cell, because a certain gap is formed between the cathode and the anode and the ionic membrane, the gap is filled with the electrolyte and conducts electricity, the conductivity of the electrolyte is poor, and the resistance is high, so that a part of electric energy is lost, and if the electrolytic cell runs for a long time, the concentration of the electrolyte is reduced, and the electric energy loss is larger.
SUMMERY OF THE UTILITY MODEL
The application provides an ionic membrane electrolytic cell for solve above-mentioned negative and positive electrode and have certain clearance between the ionic membrane and lead to electric energy loss, extravagant problem.
The application provides an ionic membrane electrolytic cell, including anode chamber, cathode chamber, ionic membrane, anode electrode, cathode electrode, the first baffle of anode chamber, the first baffle of cathode chamber, anode chamber and cathode chamber are separated by ionic membrane, the first baffle of anode chamber, the first baffle of cathode chamber, and anode electrode sets up in the anode chamber, and cathode electrode sets up in the cathode chamber, and the distance between above-mentioned anode electrode and the cathode electrode equals ionic membrane's thickness.
Optionally, the ionic membrane is clamped and fixed by the first anode chamber partition plate and the first cathode chamber partition plate; the anode chamber comprises an anode chamber second partition plate, the cathode chamber comprises a cathode chamber second partition plate, the anode chamber second partition plate and the cathode chamber second partition plate clamp and fix the anode chamber first partition plate and the cathode chamber first partition plate, the lower end of the anode chamber second partition plate is aligned with the lower end of the anode chamber first partition plate, and the lower end of the cathode chamber second partition plate is aligned with the lower end of the cathode chamber first partition plate.
The distance between the anode electrode and the cathode electrode is the thickness of the ionic membrane, namely the anode electrode and the cathode electrode are respectively tightly attached to the ionic membrane, so that the electric energy loss in the electrolytic reaction is reduced, the energy is saved, the consumption is reduced, the production cost is saved, and the electrolytic efficiency is improved.
Optionally, the anode chamber further comprises an anode chamber gas outlet, an anode chamber liquid inlet and an anode chamber liquid outlet, and the anode chamber gas outlet is arranged at the top of the anode chamber; the liquid inlet of the anode chamber is arranged on one side of the anode chamber, which is far away from the first partition plate of the anode chamber; the liquid outlet of the anode chamber is arranged at the bottom of one side of the anode chamber far away from the ionic membrane; the distance from the first partition board of the anode chamber to the other side wall of the anode chamber is equal to the width of the second partition board of the anode chamber.
Optionally, the cathode chamber further comprises a cathode chamber air outlet, a cathode chamber liquid inlet and a cathode chamber liquid outlet, and the cathode chamber air outlet is arranged at the top of the cathode chamber; the liquid inlet of the cathode chamber is arranged on one side of the cathode chamber, which is far away from the first partition plate of the cathode chamber; the liquid outlet of the cathode chamber is arranged at the bottom of one side of the cathode chamber far away from the ionic membrane; the distance from the first partition board of the cathode chamber to the cathode chamber is equal to the width of the second partition board of the cathode chamber.
Optionally, the anode electrode sequentially includes an anode support mesh and an anode coating from the center to the outer layer; the anode supporting net is made of at least one of graphite and titanium; the anode coating is one or more of a tin coating, an iridium coating, a platinum coating and a ruthenium oxide coating.
Optionally, the cathode electrode sequentially comprises a cathode support net and a cathode coating from the center to the outer layer; the cathode supporting net is a flexible supporting net and is made of at least one of nickel and low-carbon steel; the cathode coating is one or more of a nickel-aluminum porous coating, a cobaltosic oxide coating, a CP205 type active cathode coating and a CA1000 type active cathode coating.
Optionally, one side of the bottom of the anode chamber close to the ionic membrane is higher than one side far away from the ionic membrane; the side of the bottom of the cathode chamber close to the ionic membrane is higher than the side far away from the ionic membrane.
Optionally, a first gas analyzer is connected to the gas outlet of the anode chamber; and a second gas analyzer is connected to the gas outlet of the cathode chamber.
Optionally, a temperature detection device is further disposed between the second partition plate of the anode chamber and the liquid outlet of the anode chamber, and a detection probe of the temperature detection device penetrates through a wall of the anode chamber and extends into the electrolyte in the anode chamber.
Optionally, a conductivity tester is connected to the inlet of the anode chamber.
The ionic membrane electrolytic cell has good operation stability, reduces the distance between the anode and the cathode to the thickness of the ionic membrane by sticking the anode electrode, the ionic membrane and the cathode electrode together, reduces the electric energy loss in electrolytic reaction, can save energy, reduce consumption, save production cost and improve electrolytic efficiency. The cathode electrode adopts a flexible net structure, so that the ionic membrane can be prevented from being damaged by the cathode electrode in production, and the service life of the ionic membrane is prolonged; the inclined bottom of the cathode chamber and the anode chamber is convenient for cleaning during maintenance of the cathode chamber and the anode chamber. The ionic membrane electrolytic cell can be used independently, and can also be jointly used by connecting a plurality of ionic membrane electrolytic cells in series according to the production capacity requirement.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following descriptions are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of an ion membrane electrolyzer according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an anode electrode according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a cathode electrode according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural view of an ion membrane electrolyzer provided in another embodiment of the present application;
FIG. 5 is a schematic structural view of an ion membrane electrolyzer according to yet another embodiment of the present application;
fig. 6 is a schematic structural diagram of an ion membrane electrolyzer according to yet another embodiment of the present application.
Description of the reference numerals:
1. an anode chamber;
101. an air outlet of the anode chamber;
102. a liquid inlet of the anode chamber;
103. a liquid outlet of the anode chamber;
104. a second separator in the anode chamber;
2. a cathode chamber;
201. an air outlet of the cathode chamber;
202. a liquid inlet of the cathode chamber;
203. a liquid outlet of the cathode chamber;
204. a second separator in the cathode chamber;
3. an ionic membrane;
4. an anode electrode;
401. an anode support mesh;
402. anodic coatings
5. A cathode electrode;
501. a cathode support mesh;
502. a cathode coating;
6. a first separator in the anode chamber;
7. a first separator in the cathode chamber;
8. a first gas analyzer;
9. a second gas analyzer;
10. a temperature detection device;
11. conductivity tester.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are clearly and completely described below, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
Fig. 1 is a schematic structural diagram of an ionic membrane electrolytic cell provided in an embodiment of the present application, and as shown in fig. 1, the present application provides an ionic membrane electrolytic cell, which includes an anode chamber 1, a cathode chamber 2, an ionic membrane 3, an anode electrode 4, a cathode electrode 5, an anode chamber first partition plate 6, and a cathode chamber first partition plate 7, where the anode chamber 1 and the cathode chamber 2 are separated by the ionic membrane 3, the anode chamber first partition plate 6, and the cathode chamber first partition plate 7, and the anode electrode 4 is disposed in the anode chamber 1, and the cathode electrode 5 is disposed in the cathode chamber 2, and a distance between the anode electrode 4 and the cathode electrode 5 is equal to a thickness of the ionic membrane 3; the ionic membrane 3 is clamped and fixed by a first anode chamber partition plate 6 and a first cathode chamber partition plate 7; the anode chamber 1 comprises an anode chamber second partition plate 104, the cathode chamber 2 comprises a cathode chamber second partition plate 204, the anode chamber second partition plate 104 and the cathode chamber second partition plate 204 clamp and fix the anode chamber first partition plate 6 and the cathode chamber first partition plate 7, the lower end of the anode chamber second partition plate 104 is aligned with the lower end of the anode chamber first partition plate 6, and the lower end of the cathode chamber second partition plate 204 is aligned with the lower end of the cathode chamber first partition plate 7.
In the application, the ionic membrane 3 separates the anode chamber 1 from the cathode chamber 2, and the anode chamber 1 and the cathode chamber 2 can exchange substances no longer in other places except for the substance exchange through the ionic membrane 3; the ionic membrane 3 separates the anode chamber 1 from the cathode chamber 2, and can reduce energy loss in the reaction. In actual production, the following reactions respectively occur at the anode and cathode electrodes when brine is electrolyzed:
and (3) anode reaction:
2Cl - -2e - ＝Cl 2 ，
and (3) cathode reaction:
2H 2 O+2e - ＝H 2 +2OH - ，
that is, in the production, the anode chloride ions lose electrons to generate chlorine, the cathode generates the reaction of electrolyzed water to generate hydrogen and hydroxide ions, and the hydrogen and the chlorine are very easy to explode when being mixed, so that the anode chamber 1 and the cathode chamber 2 are separated by the ionic membrane 3, the danger can be prevented, and the high-purity chlorine and the high-purity hydrogen can be respectively collected.
The anode chamber second partition 104 and the cathode chamber second partition 204 not only can clamp and fix the anode chamber first partition 6 and the cathode chamber first partition 7, but also can be used for indicating the adding amount of the electrolyte, and the adding amount of the electrolyte in actual production does not exceed the partition generally. The ionic membrane electrolytic cell can be used independently, and can also be used together by connecting a plurality of ionic membrane electrolytic cells in series according to the requirement of productivity.
Optionally, the anode chamber 1 further includes an anode chamber gas outlet 101, an anode chamber liquid inlet 102, and an anode chamber liquid outlet 103, where the anode chamber gas outlet 101 is disposed at the top of the anode chamber 1; the anode chamber liquid inlet 102 is arranged on one side of the anode chamber 1 far away from the first diaphragm 6 of the anode chamber; the anode chamber liquid outlet 103 is arranged at the bottom of one side of the anode chamber 1 far away from the ionic membrane 3, and the distance from the anode chamber first partition plate 6 to the other side wall of the anode chamber 1 is equal to the width of the anode chamber second partition plate 104.
Optionally, the cathode chamber 2 further comprises a cathode chamber air outlet 201, a cathode chamber liquid inlet 202 and a cathode chamber liquid outlet 203, and the cathode chamber air outlet 201 is arranged at the top of the cathode chamber 2; the cathode chamber liquid inlet 202 is arranged on one side of the cathode chamber 2 far away from the cathode chamber first partition 7; the cathode chamber liquid outlet 203 is arranged at the bottom of the cathode chamber 2 far away from the ionic membrane 3; the distance from the cathode chamber first partition 7 to the cathode chamber 2 is equal to the width of the cathode chamber second partition 204.
In actual production, chlorine ions in the anode chamber lose electrons to generate chlorine, and the anode chamber air outlet 101 is arranged at the top of the anode chamber 1 to facilitate the discharge of the generated chlorine. The anode chamber inlet 102 is provided to facilitate electrolyte injection. The cathode generates hydrogen and hydroxyl ions through the reaction of electrolyzed water, and an air outlet 201 of the cathode chamber is arranged at the top of the cathode chamber 2 so as to facilitate the discharge of the hydrogen.
Fig. 2 is a schematic structural diagram of an anode electrode according to an embodiment of the present disclosure, and as shown in fig. 2, the anode electrode 4 includes an anode supporting mesh 401 and an anode coating 402 in sequence from a center to an outer layer; the anode supporting net is made of at least one of graphite and titanium; the anodic coating 402 is one or more of a tin coating, an iridium coating, a platinum coating, and a ruthenium oxide coating.
In the present application, the anode electrode 4 discharges electrons in the electrolytic reaction and an oxidation reaction occurs, and therefore an inert substance is required to serve as the anode electrode. Graphite has the advantages of low price and easy availability, and is selected as the material of the anode electrode, and titanium has the advantages of difficult corrosion and long service life. The anode coating is coated on the anode electrode 4, so that the reaction efficiency of the anode can be enhanced; the anode electrode is made into a net shape, so that a larger specific surface area can be provided, and the electrolysis efficiency is improved. The ruthenium dioxide coating has good catalytic activity on chlorine evolution, can work under high current density, has low cell voltage and good chemical stability, and therefore, the ruthenium dioxide coating can save electricity, reduce cost and save energy. The tin coating and the iridium coating are added into the anode coating, so that the overpotential of oxygen can be improved, the selectivity of the anode is improved, and the stability of the electrode can be improved by adding the platinum coating.
Fig. 3 is a schematic structural diagram of a cathode electrode according to an embodiment of the present application, and as shown in fig. 3, the cathode electrode 5 includes a cathode support mesh 501 and a cathode coating 502 sequentially from the center to the outer layer; the cathode supporting net is a flexible supporting net and is made of at least one of nickel and low-carbon steel; the cathode coating 502 is one or more of a nickel-aluminum porous coating, a tricobalt tetraoxide coating, a CP205 type active cathode coating, a CA1000 type active cathode coating.
In the present application, during the electrolysis process, the cathode electrode 5 obtains electrons in the electrolysis reaction to generate a reduction reaction, so that a substance with high activity, such as nickel, low carbon steel, etc., can be selected as the cathode electrode. Because the distance between the anode electrode 4 and the cathode electrode 5 is the thickness of the ionic membrane 3, that is, the anode electrode 4 and the cathode electrode 5 are respectively tightly attached to the ionic membrane 3, in actual production, the cathode electrode is easy to generate a larger deformation amount, and if the cathode electrode 5 is of a rigid structure, the ionic membrane 3 is easily damaged when the cathode electrode 5 deforms, so that the cathode electrode 5 is a flexible net, which not only can play a role of protecting the ionic membrane 3 and prolong the service life of the ionic membrane, but also can provide a larger specific surface area, thereby improving the electrolysis efficiency.
Optionally, one side of the bottom of the anode chamber 1 close to the ionic membrane 3 is higher than one side far away from the ionic membrane 3; the side of the bottom of the cathode chamber 2 close to the ionic membrane 3 is higher than the side far away from the ionic membrane 3.
In this application, the design of the slope of anode chamber 1 and 2 bottoms of cathode chamber is convenient for the discharge of electrolyte, conveniently in the washing of maintaining anode chamber 1 and 2 cathode chambers.
Fig. 4 is a schematic structural diagram of an ion membrane electrolyzer according to another embodiment of the present application, as shown in fig. 4, a first gas analyzer 8 is connected to a gas outlet 101 of an anode chamber; a second gas analyzer 9 is connected to the cathode chamber gas outlet 201.
In this application, anode chamber gas outlet 101 department is connected with first gas analyzer 8 and is used for detecting the purity of chlorine, and first gas analyzer 8 can the real-time detection chlorine concentration for guide the replenishment and the timely change of the electrolyte to the anode chamber.
The gas outlet 201 of the cathode chamber is connected with a second gas analyzer 9 for detecting the purity of hydrogen and the oxygen content of hydrogen, and the second gas analyzer 9 can detect the purity of chlorine in real time and is used for guiding the supplement and timely replacement of the electrolyte in the cathode chamber.
Fig. 5 is a schematic structural diagram of an ion membrane electrolytic cell according to yet another embodiment of the present application, and as shown in fig. 5, a temperature detection device 10 is further disposed between the second partition 104 of the anode chamber and the liquid outlet 103 of the anode chamber, and a detection probe of the temperature detection device 10 penetrates through a wall of the anode chamber 1 and extends into the electrolyte in the anode chamber 1.
In the application, the temperature detection device 10 arranged on the wall of the anode chamber 1 can detect the temperature of the total electrolyte of the electrolytic cell in real time, so that the maintenance and the management of the electrolytic cell are facilitated.
Fig. 6 is a schematic structural diagram of an ion membrane electrolyzer provided in another embodiment of the present application, and optionally, as shown in fig. 6, a conductivity tester 11 is connected to a liquid inlet 102 of the anode chamber.
The application of ionic membrane electrolytic cell, in actual production, the electrolyte that supplies with anode chamber 1 and cathode chamber 2 is the same, therefore conductivity tester 11 connects in anode chamber inlet 102 department, also can connect in cathode chamber inlet 202 department. Conductivity meter 11 is connected to anode chamber inlet 102 to monitor the concentration of brine injected into the electrolyte in anode chamber 1.
The ionic membrane electrolytic cell has good operation stability, reduces the distance between the anode and the cathode to the thickness of the ionic membrane 3 by attaching the anode electrode 4, the ionic membrane 3 and the cathode electrode 5 together, reduces the electric energy loss in electrolytic reaction, and can save energy, reduce consumption, save production cost and improve electrolytic efficiency. The cathode electrode 5 adopts a flexible net structure, so that the ion membrane 3 can be prevented from being damaged by the cathode electrode 5 in production, and the service life of the ion membrane is prolonged; the inclined design of the bottom of the cathode chamber 2 and the anode chamber 1 is convenient for cleaning the cathode chamber 2 and the anode chamber 1 during maintenance. The ion membrane electrolytic cell can be used independently, and can also be used together by connecting a plurality of ion membrane electrolytic cells in series according to the production capacity requirement.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.
Claims (8)
1. The utility model provides an ionic membrane electrolysis cell, includes anode chamber (1), cathode chamber (2), ionic membrane (3), anode electrode (4), cathode electrode (5), the first baffle of anode chamber (6), the first baffle of cathode chamber (7), anode chamber (1) and cathode chamber (2) are separated by ionic membrane (3), the first baffle of anode chamber (6), the first baffle of cathode chamber (7), just anode electrode (4) set up in anode chamber (1), cathode electrode (5) set up in cathode chamber (2), its characterized in that: the distance between the anode electrode (4) and the cathode electrode (5) is equal to the thickness of the ionic membrane (3);
the ionic membrane (3) is clamped and fixed by the anode chamber first partition plate (6) and the cathode chamber first partition plate (7);
the anode chamber (1) comprises an anode chamber second partition plate (104), the cathode chamber (2) comprises a cathode chamber second partition plate (204), the anode chamber second partition plate (104) and the cathode chamber second partition plate (204) clamp and fix the anode chamber first partition plate (6) and the cathode chamber first partition plate (7), the lower end of the anode chamber second partition plate (104) is aligned with the lower end of the anode chamber first partition plate (6), and the lower end of the cathode chamber second partition plate (204) is aligned with the lower end of the cathode chamber first partition plate (7).
2. The ionic membrane electrolyzer of claim 1, wherein the anode chamber (1) further comprises an anode chamber gas outlet (101), an anode chamber liquid inlet (102), and an anode chamber liquid outlet (103), wherein the anode chamber gas outlet (101) is disposed at the top of the anode chamber (1);
the liquid inlet (102) of the anode chamber is arranged on one side of the anode chamber (1) far away from the first partition plate (6) of the anode chamber;
the anode chamber liquid outlet (103) is arranged at the bottom of one side, away from the ionic membrane (3), of the anode chamber (1);
the distance from the first baffle plate (6) of the anode chamber to the other side wall of the anode chamber (1) is equal to the width of the second baffle plate (104) of the anode chamber;
the cathode chamber (2) further comprises a cathode chamber air outlet (201), a cathode chamber liquid inlet (202) and a cathode chamber liquid outlet (203), and the cathode chamber air outlet (201) is arranged at the top of the cathode chamber (2);
the liquid inlet (202) of the cathode chamber is arranged on one side, far away from the first partition plate (7) of the cathode chamber, of the cathode chamber (2);
the cathode chamber liquid outlet (203) is arranged at the bottom of one side of the cathode chamber (2) far away from the ionic membrane (3);
the distance from the first cathode chamber partition plate (7) to the cathode chamber (2) is equal to the width of the second cathode chamber partition plate (204).
3. The ion membrane electrolysis cell according to claim 1, wherein the anode electrode (4) comprises an anode support mesh (401) and an anode coating (402) in order from the center to the outer layer;
the anode supporting net is made of one of graphite and titanium;
the anodic coating (402) is one or more of a tin coating, an iridium coating, a platinum coating, and a ruthenium oxide coating.
4. The ionic membrane electrolyzer of claim 1, characterized in that the cathode electrode (5) comprises, in order from the center to the outer layer, a cathode support mesh (501) and a cathode coating (502);
the cathode supporting net is a flexible supporting net and is made of one of nickel and low-carbon steel;
the cathode coating (502) is one or more of a nickel-aluminum porous coating, a cobaltosic oxide coating, a CP205 type active cathode coating and a CA1000 type active cathode coating.
5. The ionic membrane electrolyzer of claim 1, characterized in that the bottom of the anode compartment (1) is higher on the side close to the ionic membrane (3) than on the side far from the ionic membrane (3);
the side of the bottom of the cathode chamber (2) close to the ionic membrane (3) is higher than the side far away from the ionic membrane (3).
6. The ionic membrane electrolysis cell according to claim 2, characterized in that a first gas analyzer (8) is connected to the anode chamber gas outlet (101); and a second gas analyzer (9) is connected to the gas outlet (201) of the cathode chamber.
7. The ionic membrane electrolyzer of claim 2, characterized in that a temperature detection device (10) is further disposed between the second partition (104) of the anode chamber and the liquid outlet (103) of the anode chamber, and a detection probe of the temperature detection device (10) penetrates through the wall of the anode chamber (1) and extends into the electrolyte in the anode chamber (1).
8. The ion membrane electrolyzer of claim 2, characterized in that a conductivity tester (11) is connected to the anode chamber liquid inlet (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122854643.0U CN217052425U (en) | 2021-11-19 | 2021-11-19 | Ion membrane electrolytic tank |
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