CN110291228B - Electrolytic device for electrolyte - Google Patents

Electrolytic device for electrolyte Download PDF

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Publication number
CN110291228B
CN110291228B CN201880011284.0A CN201880011284A CN110291228B CN 110291228 B CN110291228 B CN 110291228B CN 201880011284 A CN201880011284 A CN 201880011284A CN 110291228 B CN110291228 B CN 110291228B
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electrode plate
anode
electrolyte
cathode
electrolysis
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CN110291228A (en
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郑振浩
金宪岩
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Ascent Co Ltd
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Ascent Co Ltd
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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
    • 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
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • 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
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C25B11/03—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous
    • C25B11/031—Porous electrodes
    • 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
    • C25B13/00—Diaphragms; Spacing elements
    • C25B13/02—Diaphragms; Spacing elements characterised by shape or form
    • 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
    • C25B13/00—Diaphragms; Spacing elements
    • C25B13/04—Diaphragms; Spacing elements characterised by the material
    • 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
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • 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
    • C25B15/00—Operating or servicing cells
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • 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
    • C25B15/00—Operating or servicing cells
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • C25B15/083—Separating products
    • 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
    • C25B9/70—Assemblies comprising two or more cells
    • C25B9/73—Assemblies comprising two or more cells of the filter-press type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Abstract

The invention discloses an electrolytic device of electrolyte. According to an embodiment, the electrolytic device of the electrolyte of the present invention includes: a storage tank into which an electrolyte is introduced from an inlet port formed at the other side, the solvent being supplied from an inlet port at one side and stored in the interior of the storage tank and then discharged from an outlet port at the other side; an electrolytic part formed inside the tank, wherein a plurality of reticular electrode parts and diaphragm parts are alternately arranged to form a multilayer structure so that the electrolyte can pass through the electrolytic part in sequence; and a discharge unit having a discharge port formed at an upper portion of the electrolysis unit, for discharging gas obtained by electrolysis.

Description

Electrolytic device for electrolyte
Technical Field
The present invention relates to an electrolytic apparatus for an electrolyte, and more particularly, to an electrolytic apparatus capable of generating a gas by decomposing an electrolyte and preventing corrosion of a reaction vessel.
Background
Unless otherwise indicated by the description, the descriptions in this section are not prior art to the claims in this application, and are not necessarily prior art unless otherwise indicated.
The electrolysis apparatus is suitable for use in a variety of applications. As a representative example, after water is electrolyzed to generate oxygen gas and hydrogen gas, the oxygen gas and the hydrogen gas are used separately, or these are recombined to obtain purified water.
As an application example of such an electrolytic device, an electrolytic cell provided with an anode and a cathode is charged with an electrolyte such as HCl or NaCl to generate a gas through electrolysis, and the generated gas is dissolved in a solvent such as water, an organic solvent, or an inorganic solvent to be extracted from the electrolytic cell and applied to various applications.
Disclosure of Invention
(problems to be solved by the invention)
The object of the present disclosure is to provide an electrolyte electrolytic device which simplifies the electrode arrangement structure to be economical, enhances the electrolytic efficiency, and improves the yield of decomposed hydrogen.
(measures taken to solve the problems)
The object can be achieved by an electrolytic device of an electrolyte comprising: a storage tank into which an electrolyte is introduced from an inlet port formed at the other side, the solvent being supplied from an inlet port at one side and stored in the interior of the storage tank and then discharged from an outlet port at the other side; an electrolytic part formed inside the tank, wherein a plurality of reticular electrode parts and diaphragm parts are alternately arranged to form a multilayer structure so that the electrolyte can pass through the electrolytic part in sequence; and a discharge unit having a discharge port formed at an upper portion of the electrolysis unit, for discharging gas obtained by electrolysis.
The electrolytic unit includes an anode electrode plate and a cathode electrode plate, which are formed in parallel in the tank at a predetermined interval, and the anode electrode and the cathode electrode are provided on the anode electrode plate and the cathode electrode plate, respectively.
The mesh electrode portion includes: an anode mesh electrode formed parallel to the horizontal direction and having one end connected to the anode electrode plate of the electrolysis part; and a cathode mesh electrode formed parallel to the anode mesh electrode and having one end connected to a cathode electrode plate of the electrolysis part.
The diaphragm portion includes: a first separator formed parallel to the horizontal direction and having one end connected to the anode electrode plate of the electrolysis part; and a second separator formed parallel to the first separator and having one end connected to the cathode electrode plate of the electrolysis part.
The mesh electrode portion has a first flow path formed between the other end of the anode mesh electrode and the cathode electrode plate, and a second flow path formed between the other end of the cathode mesh electrode and the anode electrode plate.
The anode mesh electrode and the cathode mesh electrode are formed with a plurality of through holes for allowing an electrolyte to pass therethrough, and are composed of a conductor capable of conducting electricity.
In the separator portion, the other end of the first separator is spaced apart from the cathode electrode plate to form the third flow path, and the other end of the second separator is spaced apart from the anode electrode plate to form the fourth flow path.
The discharge portion is formed such that an upper diaphragm constituting the upper diaphragm portion is inclined upward toward the discharge port, and the solvent flows outside the discharge port to increase the flow velocity of the discharged gas.
(Effect of the invention)
According to the disclosed embodiment, the electrode arrangement structure is simplified to save cost, the electrolysis efficiency can be enhanced, and the yield of decomposed hydrogen can be improved.
Drawings
Fig. 1 is a front sectional view of an electrolytic device showing an electrolyte of a first embodiment.
Fig. 2 is a front sectional view of an electrolytic device showing an electrolyte of a second embodiment.
Fig. 3 is a front sectional view of an electrolytic device showing an electrolyte of a third embodiment.
Fig. 4 is a top sectional view of an electrolytic device showing an electrolyte of a fourth embodiment.
Detailed Description
The preferred embodiments are described in detail below based on the drawings.
The following is a detailed description of the embodiments of the present invention to facilitate those skilled in the art to practice the present invention, and these are not intended to limit the technical spirit and scope of the present invention.
In addition, in order to clarify and facilitate the description, the sizes, shapes, and the like of the constituent elements in the drawings may be exaggeratedly shown, and terms specifically defined in consideration of the features and actions of the present invention may be different according to the intention or the custom of a user or an operator, but the definitions of the terms should be construed based on the entire contents of the present specification.
In the drawings, fig. 1 is a front sectional view showing an electrolytic device of an electrolyte of a first embodiment, fig. 2 is a front sectional view showing an electrolytic device of a second embodiment, fig. 3 is a front sectional view showing an electrolytic device of an electrolyte of a third embodiment, and fig. 4 is a top sectional view showing an electrolytic device of an electrolyte of a fourth embodiment.
As shown in fig. 1, the electrolytic apparatus of an electrolyte includes: a tank (tank)100, an electrolysis unit 200, and a discharge unit 500. With respect to the tank 100, the solvent is supplied from the inlet port 120 of one side and stored in the interior of the tank 100 and then discharged from the outlet port 140 of the other side, and the electrolyte is put into the tank 100 from the inlet port 250 formed at the other side; an electrolytic part 200 formed inside the tank 100, in which a plurality of mesh electrode (mesh electrode) parts 300 and diaphragm parts 400 are alternately arranged to form a multi-layered structure so that an electrolyte passes through in sequence; the discharge unit 500 has a discharge port 520 at the upper part of the electrolysis unit 200, and discharges the gas obtained by electrolysis.
The electrolytic unit 200 includes an anode electrode plate (panel)220 and a cathode electrode plate (panel)240, the anode electrode plate 220 and the cathode electrode plate 240 are formed in parallel in the tank 100 at a predetermined interval, and the anode electrode and the cathode electrode are respectively provided on the anode electrode plate 220 and the cathode electrode plate 240.
The mesh electrode part 300 includes: an anode mesh electrode 310 formed parallel to the horizontal direction and having one end connected to the anode electrode plate 220 of the electrolysis part 200; and a cathode mesh electrode 330 formed parallel to the anode mesh electrode 310 and having one end connected to the cathode electrode plate 240 of the electrolysis unit 200.
The mesh electrode unit 300 has a first flow path U1 formed between the other end of the anode mesh electrode 310 and the cathode electrode plate 240, and a second flow path U2 formed between the other end of the cathode mesh electrode 330 and the anode electrode plate 220.
The anode mesh electrode 310 and the cathode mesh electrode 330 are formed with a plurality of through holes through which an electrolyte can pass, and are composed of a conductor capable of conducting electricity.
The electrolyte passes through the plurality of through holes of the anode mesh electrode 310 and the cathode mesh electrode 330, and undergoes a decomposition reaction by being electrified.
The undecomposed electrolyte passes through the first flow path U1, passes through the second flow path U2, and moves to the separator 400.
The diaphragm portion 400 includes: a first separator 420 formed parallel to the horizontal direction and having one end connected to the anode electrode plate 220 of the electrolysis part 200; and a second separator 440 formed in parallel with the first separator 420 and having one end connected to the cathode electrode plate 240 of the electrolysis part 200.
The other end of the first separator 420 is spaced apart from the cathode electrode plate 240 to form a third flow path U3.
The other end of the second separator 440 is spaced apart from the anode electrode plate 220 to form a fourth flow path U4.
The undecomposed electrolyte passes through the third flow path U3 and the fourth flow path U4. When the electrolyte passes, the electrolyte in contact with the surfaces of the first separator 420 and the second separator 440 undergoes a decomposition reaction by the passage of electricity.
The electrolyte suitable for the examples was HCl and the solvent was water (H)2O)。
The reaction formula is as follows.
HCl--->H++Cl-
2Cl--->Cl2+2e-
2H++2e---＞H2↑
Cl2+H2O-->HOCl+HCl
The discharge part 500 is formed such that the upper diaphragm 490 constituting the upper diaphragm part 400 is inclined upward toward the discharge port 520.
Referring to fig. 1, the upper diaphragm 490 is inclined upward as it approaches the left side.
The vent 520 is formed to have a small diameter, and the solvent flows outside the vent 520, thereby increasing the flow rate of the discharged gas.
The upper end portion 225 of the anode electrode plate 220 is formed to protrude from one end portion of the upper diaphragm 490, that is, the discharge port 520, so that the interval with the inner wall of the tank 100 is reduced to form the first flow path t1, and the flow rate is increased while passing through the narrow first flow path t 1.
The upper end of the cathode electrode plate 240 is formed at the same height as the upper separator, and thus, a second flow path t2 widely spaced from the inner wall of the tank 100 is formed, so that the flow rate becomes slow when passing through this second flow path t 2.
When electrolysis is performed in the diaphragm portion 400, the generated gas cannot be directly discharged due to the diaphragm, and is dissolved in the solution again.
In the mesh electrode part 300, H is actively generated by the electrolysis of HCl2、Cl2。
On the other hand, the discharge port 520 of the discharge portion 500 is discharged from the discharge port according to Bernoulli's principleDischarged gas (H)2) Is separated from the electrolysis part 200 and mixed in water as a solvent.
That is, the gas is discharged together with the difference in pressure between the inside and outside of the electrolytic unit 200 and the flow of the external solvent.
The flow velocity in the first flow path t1 is very fast, and the discharge of the gas through the discharge port 520 can be promoted by generating a suction force at the discharge port 520 by means of the fast flow velocity.
A coating film W1 is formed on the inner surfaces of the anode electrode plate 220 and the cathode electrode plate 240 and on the surfaces of the anode mesh electrode 310 and the cathode mesh electrode 330.
The coating W1 is made of a material that can transfer cooling heat to the electrolytic unit 200 and prevent corrosion.
Further, a conductive and insoluble substance was applied to form a film W1.
The conductive and insoluble substance that can be used is ruthenium (Ru), iridium (Ir), platinum (Pt), or the like.
Anode electrode plate 220 and cathode electrode plate 240 are titanium (Ti).
On the other hand, a nonconductive oxide film W2 is formed on the outer surfaces of the anode electrode plate 220, the cathode electrode plate 240, and the upper separator 490, thereby protecting the portion in contact with the solvent (cold water).
The nonconductive oxide film W2 is formed by coating a polymer (polymer) film using a selected substance selected from the group consisting of titanium oxide (TiO2), Teflon (Teflon), polypropylene (PP), and Polyethylene (PE), and is capable of blocking additional electric reaction while preventing corrosion by conducting heat.
On the other hand, according to another embodiment (a2), as shown in fig. 2, an electrolytic device of an electrolyte includes: a tank 100, an electrolysis unit 200, and a discharge unit 500. With respect to the tank 100, the solvent is supplied from the inlet port 120 of one side and stored in the interior of the tank 100 and then discharged from the outlet port 140 of the other side, and the electrolyte is put into the tank 100 from the inlet port 250 formed at the other side; an electrolytic unit 200 formed inside the tank 100, the plurality of mesh electrode units 300 'and the plurality of membrane units 400' being alternately arranged to form a multi-layered structure for passing an electrolyte therethrough; the discharge unit 500 has a discharge port 520 formed at an upper portion of the electrolysis unit 200 to discharge the gas resulting from the electrolysis.
The electrolysis unit 200 includes an anode electrode plate 220 and a cathode electrode plate 240, the anode electrode plate 220 and the cathode electrode plate 240 are formed in parallel in the tank 100 at a predetermined interval, and the anode electrode and the cathode electrode are respectively provided on the anode electrode plate 220 and the cathode electrode plate 240.
The mesh electrode part 300' includes: an anode mesh electrode 310 formed parallel to the horizontal direction and having one end connected to the anode electrode plate 220 of the electrolysis part 200; and a cathode mesh electrode 330 formed parallel to the anode mesh electrode 310, one end of which is connected to the cathode electrode plate 240 of the electrolysis part 200.
The mesh electrode unit 300' has a first flow path U1 formed between the other end of the anode mesh electrode 310 and the cathode electrode plate 240, and has a second flow path U2 formed between the other end of the cathode mesh electrode 330 and the anode electrode plate 220.
The anode mesh electrode 310 and the cathode mesh electrode 330 are formed with a plurality of through holes through which an electrolyte can pass, and are composed of a conductor capable of conducting electricity.
The electrolyte passes through the plurality of through holes of the anode mesh electrode 310 and the cathode mesh electrode 330, and undergoes a decomposition reaction by being electrified.
The undecomposed electrolyte passes through the first flow channel U1, passes through the second flow channel U2, and moves to the separator 400'.
The diaphragm portion 400' includes: a first separator 420 formed parallel to the horizontal direction and having one end connected to the anode electrode plate 220 of the electrolysis part 200; and a second separator 440 formed in parallel with the first separator 420 and having one end connected to the cathode electrode plate 240 of the electrolysis part 200.
The other end of the first separator 420 is spaced apart from the cathode electrode plate 240 to form a third flow path U3.
The other end of the second separator 440 is spaced apart from the anode electrode plate 220 to form a fourth flow path U4.
The undecomposed electrolyte passes through the third flow path U3 and the fourth flow path U4. When the electrolyte passes, the electrolyte in contact with the surfaces of the first separator 420 and the second separator 440 undergoes a decomposition reaction by the passage of electricity.
In the electrolytic unit 200, the mesh electrodes 300 'and the separators 400' are alternately formed, and the interval between the mesh electrodes 300 'and the separators 400' becomes narrower as it goes from the inlet 250 to the upper outlet 520, thereby forming an optimal current density according to the concentration of the electrolyte.
Therefore, a sufficient reaction can be rapidly performed while passing through the lower portion of the electrolytic unit 200 having a high electrolyte concentration, and the electrode density is increased in a region having a narrow interval above the electrolytic unit 200, although the electrolyte concentration is decreased by the reaction, whereby the ratio of the gas and the electrolyte contacting the separator is increased, and the decomposition efficiency can be enhanced.
The electrolyte suitable for the examples was HCl and the solvent was water (H)2O)。
The reaction formula is as follows.
HCl---＞H++Cl
2Cl--->Cl2+2e-
2H++2e--->H2↑
Cl2+H2O-->HOCl+HCl
The discharge part 500 is formed such that the upper diaphragm 490 constituting the upper diaphragm part 400' is inclined upward toward the discharge port 520.
Referring to fig. 1, the upper diaphragm 490 is inclined upward as it approaches the left side.
The vent 520 is formed to have a small diameter, and the solvent flows outside the vent 520, thereby increasing the flow rate of the discharged gas.
The upper end portion 225 of the anode electrode plate 220 is formed to protrude from one end portion of the upper diaphragm 490, that is, the discharge port 520, so that the interval with the inner wall of the tank 100 is reduced to form the first flow path t1, and the flow rate is increased while passing through the narrow first flow path t 1.
The upper end of the cathode electrode plate 240 is formed at the same height as the upper separator, and thus, a second flow path t2 widely spaced from the inner wall of the tank 100 is formed, so that the flow rate becomes slow when passing through this second flow path t 2.
When electrolysis is performed in the diaphragm portion 400', the generated gas cannot be directly discharged due to the diaphragm, and is dissolved in the solution again.
In the mesh electrode part 300', H is actively generated by the electrolysis of HCl2、Cl2。
On the other hand, the gas (H) discharged from the discharge port 520 of the discharge portion 500 is discharged according to the bernoulli principle2) Is separated from the electrolysis part 200 and mixed in water as a solvent.
That is, the gas is discharged together with the difference in pressure between the inside and outside of the electrolytic unit 200 and the flow of the external solvent.
The flow velocity in the first flow path t1 is very fast, and the discharge of the gas through the discharge port 520 can be promoted by generating a suction force at the discharge port 520 by means of the fast flow velocity.
A coating film W1 is formed on the inner surfaces of the anode electrode plate 220 and the cathode electrode plate 240 and on the surfaces of the anode mesh electrode 310 and the cathode mesh electrode 330.
The coating W1 is made of a material that can transfer cooling heat to the electrolytic unit 200 and prevent corrosion.
Further, a conductive and insoluble substance was applied to form a film W1.
The conductive and insoluble substance that can be used is ruthenium (Ru), iridium (Ir), platinum (Pt), or the like.
Anode electrode plate 220 and cathode electrode plate 240 are titanium (Ti).
On the other hand, a nonconductive oxide film W2 is formed on the outer surfaces of the anode electrode plate 220, the cathode electrode plate 240, and the upper separator 490, thereby protecting the portion in contact with the solvent (cold water).
The non-conductive oxide film W2 is made of titanium oxide (TiO)2) A polymer film using a selected substance selected from the group consisting of Teflon (Teflon), polypropylene (PP), and Polyethylene (PE), and the film is heat conductive and corrosion resistant and cuts off additional electric reaction.
On the other hand, according to another embodiment (a3), as shown in fig. 3, an electrolytic device of an electrolyte includes: a tank 100, an electrolysis part 200', and a discharge part 500. With respect to the tank 100, the solvent is supplied from the inlet port 120 of one side and stored in the interior of the tank 100 and then discharged from the outlet port 140 of the other side, and the electrolyte is put into the tank 100 from the inlet port 250 formed at the other side; an electrolytic unit 200' formed inside the tank 100, in which a plurality of mesh electrode units 300 and membrane units 400 are alternately arranged to form a multi-layered structure so that an electrolyte passes through in sequence; the discharge unit 500 has a discharge port 520 formed at an upper portion of the electrolysis unit 200' to discharge the gas resulting from the electrolysis.
The electrolytic unit 200' is formed in a manner entirely partitioned inside the tank 100.
The electrolysis part 200 'is formed at the lower portion with an inflow pipe 280 communicating with the inlet 250, and the mesh electrode part 300 and the diaphragm part 400 are arranged in the electrolysis part 200' in the longitudinal direction to move the electrolyte from the lower portion to the upper portion.
The mesh electrode part 300 includes: an anode mesh electrode 310 formed parallel to the horizontal direction and having one end connected to the anode electrode plate 220 of the electrolysis part 200; and a cathode mesh electrode 330 formed parallel to the anode mesh electrode 310 and having one end connected to the cathode electrode plate 240 of the electrolysis unit 200.
The mesh electrode unit 300 has a first flow path U1 formed between the other end of the anode mesh electrode 310 and the cathode electrode plate 240, and a second flow path U2 formed between the other end of the cathode mesh electrode 330 and the anode electrode plate 220.
The anode mesh electrode 310 and the cathode mesh electrode 330 are formed with a plurality of through holes through which an electrolyte can pass, and are made of a conductive material capable of conducting electricity.
The electrolyte passes through the plurality of through holes of the anode mesh electrode 310 and the cathode mesh electrode 330, and undergoes a decomposition reaction by being electrified.
The undecomposed electrolyte passes through the first flow path U1, passes through the second flow path U2, and moves to the separator 400.
The diaphragm portion 400 includes: a first separator 420 formed parallel to the horizontal direction and having one end connected to the anode electrode plate 220 of the electrolysis part 200; and a second separator 440 formed in parallel with the first separator 420 and having one end connected to the cathode electrode plate 240 of the electrolysis part 200'.
The other end of the first separator 420 is spaced apart from the cathode electrode plate 240 to form a third flow path U3.
The other end of the second separator 440 is spaced apart from the anode electrode plate 220 to form a fourth flow path U4.
The undecomposed electrolyte passes through the third flow path U3 and the fourth flow path U4. When the electrolyte passes, the electrolyte in contact with the surfaces of the first separator 420 and the second separator 440 undergoes a decomposition reaction by the passage of electricity.
The electrolyte suitable for the examples was HCl and the solvent was water (H)2O)。
The reaction formula is as follows.
HCl---＞H++Cl-
2Cl--->Cl2+2e-
2H++2e--->H2↑
Cl2+H2O--＞HOCl+HCl
The discharge part 500 is formed such that the upper diaphragm 490 constituting the upper diaphragm part 400 is inclined upward toward the discharge port 520.
Referring to fig. 3, the upper diaphragm 490 is inclined upward as it approaches the left side.
The vent 520 is formed to have a small diameter, and the solvent flows outside the vent 520, thereby increasing the flow rate of the discharged gas.
The upper end portion 225 of the anode electrode plate 220 is formed to protrude from one end portion of the upper diaphragm 490, that is, the discharge port 520, so that the interval with the inner wall of the tank 100 is reduced to form the first flow path t1, and the flow rate is increased while passing through the narrow first flow path t 1.
The upper end of the cathode electrode plate 240 is formed at the same height as the upper separator, and thus, a second flow path t2 widely spaced from the inner wall of the tank 100 is formed, so that the flow rate becomes slow when passing through this second flow path t 2.
When electrolysis is performed in the diaphragm portion 400, the generated gas cannot be directly discharged due to the diaphragm, and is dissolved in the solution again.
In the mesh electrode part 300, H is actively generated by the electrolysis of HCl2、Cl2。
On the other hand, the gas (H) discharged from the discharge port 520 of the discharge portion 500 is discharged according to the bernoulli principle2) Is separated from the electrolysis part 200 and mixed in water as a solvent.
That is, the gas is discharged together with the difference in pressure between the inside and outside of the electrolytic unit 200 and the flow of the external solvent.
The flow velocity in the first flow path t1 is very fast, and the discharge of the gas through the discharge port 520 can be promoted by generating a suction force at the discharge port 520 by means of the fast flow velocity.
A coating film W1 is formed on the inner surfaces of the anode electrode plate 220 and the cathode electrode plate 240 and on the surfaces of the anode mesh electrode 310 and the cathode mesh electrode 330.
The coating W1 is made of a material that can transfer cooling heat to the electrolytic unit 200 and prevent corrosion.
Further, a conductive and insoluble substance was applied to form a film W1.
The conductive and insoluble substance that can be used is ruthenium (Ru), iridium (Ir), platinum (Pt), or the like.
Anode electrode plate 220 and cathode electrode plate 240 are titanium (Ti).
On the other hand, a nonconductive oxide film W2 is formed on the outer surfaces of the anode electrode plate 220, the cathode electrode plate 240, and the upper separator 490, thereby protecting the portion in contact with the solvent (cold water).
The non-conductive oxide film W2 is made of titanium oxide (TiO)2) A polymer film using a selected substance selected from the group consisting of Teflon (Teflon), polypropylene (PP), and Polyethylene (PE), and the film is heat conductive and corrosion resistant and cuts off additional electric reaction.
On the other hand, according to another embodiment (a4), as shown in fig. 4, an electrolytic device of an electrolyte includes: tank 100, electrolysis section 200 ", and drain section 500. With respect to the tank 100, the solvent is supplied from the inlet port 120 of one side and stored in the interior of the tank 100 and then discharged from the outlet port 140 of the other side, and the electrolyte is put into the tank 100 from the inlet port 250 formed at the other side; an electrolytic unit 200 ″ formed inside the tank 100, the plurality of mesh electrode units 300 and the plurality of membrane units 400 being alternately arranged to form a multi-layered structure for passing an electrolyte therethrough; the discharge unit 500 has a discharge port 520 formed at an upper portion of the electrolysis unit 200 ″ to discharge the gas resulting from the electrolysis.
The electrolytic portion 200 "is formed inside the tank 100, and the mesh electrode portion 300 and the separator portion 400 are vertically formed and arranged in the electrolytic portion 200" in the lateral direction to move the electrolyte in the lateral direction.
The mesh electrode part 300 includes: an anode mesh electrode 310 formed parallel to the horizontal direction and having one end connected to the anode electrode plate 220 of the electrolysis part 200; and a cathode mesh electrode 330 formed parallel to the anode mesh electrode 310 and having one end connected to the cathode electrode plate 240 of the electrolysis unit 200.
The mesh electrode unit 300 has a first flow path U1 formed between the other end of the anode mesh electrode 310 and the cathode electrode plate 240, and a second flow path U2 formed between the other end of the cathode mesh electrode 330 and the anode electrode plate 220.
The anode mesh electrode 310 and the cathode mesh electrode 330 are formed with a plurality of through holes through which an electrolyte can pass, and are made of a conductive material capable of conducting electricity.
The electrolyte passes through the plurality of through holes of the anode mesh electrode 310 and the cathode mesh electrode 330, and undergoes a decomposition reaction by being electrified.
The undecomposed electrolyte passes through the first flow path U1, passes through the second flow path U2, and moves to the separator 400.
The diaphragm portion 400 includes: a first separator 420 formed parallel to the horizontal direction and having one end connected to the anode electrode plate 220 of the electrolysis part 200; and a second separator 440 formed in parallel with the first separator 420 and having one end connected to the cathode electrode plate 240 of the electrolysis part 200.
The other end of the first separator 420 is spaced apart from the cathode electrode plate 240 to form a third flow path U3.
The other end of the second separator 440 is spaced apart from the anode electrode plate 220 to form a fourth flow path U4.
The undecomposed electrolyte passes through the third flow path U3 and the fourth flow path U4. When the electrolyte passes, the electrolyte in contact with the surfaces of the first separator 420 and the second separator 440 undergoes a decomposition reaction by the passage of electricity.
The electrolyte suitable for the examples was HCl and the solvent was water (H)2O)。
The reaction formula is as follows.
HCl--->H++Cl-
2Cl--->Cl2+2e-
2H++2e--->H2↑
Cl2+H2O--＞HOCl+HCl
The discharge part 500 is formed such that the upper diaphragm 490 constituting the upper diaphragm part 400 is inclined upward toward the discharge port 520.
Referring to fig. 4, the upper diaphragm 490 is inclined upward as it approaches the left side.
The vent 520 is formed to have a small diameter, and the solvent flows outside the vent 520, thereby increasing the flow rate of the discharged gas.
The upper end portion 225 of the anode electrode plate 220 is formed to protrude from one end portion of the upper diaphragm 490, that is, the discharge port 520, so that the interval with the inner wall of the tank 100 is reduced to form the first flow path t1, and the flow rate is increased while passing through the narrow first flow path t 1.
The upper end of the cathode electrode plate 240 is formed at the same height as the upper separator, and thus, a second flow path t2 widely spaced from the inner wall of the tank 100 is formed, so that the flow rate becomes slow when passing through this second flow path t 2.
When electrolysis is performed in the diaphragm portion 400, the generated gas cannot be directly discharged due to the diaphragm, and is dissolved in the solution again.
In the mesh electrode part 300, H is actively generated by the electrolysis of HCl2、Cl2。
On the other hand, the gas (H) discharged from the discharge port 520 of the discharge portion 500 is discharged according to the bernoulli principle2) Is separated from the electrolysis part 200 and mixed in water as a solvent.
That is, the gas is discharged together with the difference in pressure between the inside and outside of the electrolytic unit 200 and the flow of the external solvent.
The flow velocity in the first flow path t1 is very fast, and the discharge of the gas through the discharge port 520 can be promoted by generating a suction force at the discharge port 520 by means of the fast flow velocity.
A coating film W1 is formed on the inner surfaces of the anode electrode plate 220 and the cathode electrode plate 240 and on the surfaces of the anode mesh electrode 310 and the cathode mesh electrode 330.
The coating W1 is made of a material that can transfer cooling heat to the electrolytic unit 200 and prevent corrosion.
Further, a conductive and insoluble substance was applied to form a film W1.
The conductive and insoluble substance that can be used is ruthenium (Ru), iridium (Ir), platinum (Pt), or the like.
Anode electrode plate 220 and cathode electrode plate 240 are titanium (Ti).
On the other hand, a nonconductive oxide film W2 is formed on the outer surfaces of the anode electrode plate 220, the cathode electrode plate 240, and the upper separator 490, thereby protecting the portion in contact with the solvent (cold water).
The non-conductive oxide film W2 is made of titanium oxide (TiO)2) A polymer film using a selected substance selected from the group consisting of Teflon (Teflon), polypropylene (PP), and Polyethylene (PE), and the film is heat conductive and corrosion resistant and cuts off additional electric reaction.
Although the preferred embodiments have been described, various modifications and changes can be easily made by those skilled in the art without departing from the spirit and scope of the invention, and they fall within the scope of the appended claims.
(description of reference numerals)
100: a sump 100; 200: an electrolysis unit;
300: a mesh electrode portion; 220: an anode electrode plate;
240: a cathode electrode plate; 310: an anode mesh electrode;
330: a cathode mesh electrode; 400: a diaphragm portion;
420: a first diaphragm; 440: a second diaphragm;
500: a discharge unit.

Claims (11)

1. An apparatus for electrolyzing an electrolyte, comprising:
a storage tank into which an electrolyte is introduced from an inlet port formed at the other side, the solvent being supplied from an inlet port at one side and stored in the interior of the storage tank and then discharged from an outlet port at the other side;
an electrolytic part formed inside the tank, wherein a plurality of reticular electrode parts and diaphragm parts are alternately arranged to form a multilayer structure so that the electrolyte can pass through the electrolytic part in sequence; and
a discharge part having a discharge port formed at an upper portion of the electrolysis part to discharge gas obtained by electrolysis,
the discharge part is formed in such a manner that an upper diaphragm constituting the upper diaphragm part is inclined upward toward the discharge port, the solvent flows outside the discharge port to increase the flow velocity of the gas discharged,
the mesh electrode part and the diaphragm part of the electrolysis part are formed as follows: the closer to the upper discharge port from the inlet port, the narrower the interval.
2. The electrolytic apparatus of claim 1,
the electrolytic unit includes an anode electrode plate and a cathode electrode plate, which are formed in parallel in the tank at a predetermined interval, and the anode electrode and the cathode electrode are provided on the anode electrode plate and the cathode electrode plate, respectively.
3. The electrolytic apparatus of claim 1,
the mesh electrode portion includes: an anode mesh electrode formed parallel to the horizontal direction and having one end connected to the anode electrode plate of the electrolysis part; and a cathode mesh electrode formed parallel to the anode mesh electrode and having one end connected to a cathode electrode plate of the electrolysis part.
4. The electrolytic apparatus of claim 2,
the diaphragm portion includes: a first separator formed parallel to the horizontal direction and having one end connected to the anode electrode plate of the electrolysis part; and a second separator formed parallel to the first separator and having one end connected to the cathode electrode plate of the electrolysis part.
5. The electrolytic apparatus of claim 3,
the mesh electrode portion has a first flow path formed between the other end of the anode mesh electrode and the cathode electrode plate, and a second flow path formed between the other end of the cathode mesh electrode and the anode electrode plate.
6. The electrolytic apparatus of claim 3,
the anode mesh electrode and the cathode mesh electrode are formed with a plurality of through holes through which an electrolyte can pass, and are composed of a conductor through which electricity can be passed.
7. The electrolytic apparatus of claim 4,
the method comprises the following steps: a third flow path formed by separating the other end of the first diaphragm from the cathode electrode plate; and a fourth flow path formed by separating the other end of the second separator from the anode electrode plate.
8. The electrolytic apparatus of claim 1,
the electrolysis part is formed in the storage tank in a spaced manner, an inflow pipe communicated with the inlet is formed at the lower part, and the reticular electrode part and the diaphragm part are arranged in the electrolysis part along the longitudinal direction to move the electrolyte from the lower part to the upper part.
9. The electrolytic apparatus of claim 1,
the electrolysis part is formed inside the tank, and the mesh electrode part and the diaphragm part are arranged in the electrolysis part along the transverse direction to make the electrolyte move transversely.
10. The electrolytic apparatus of claim 3,
the inner surface of the anode electrode plate and the inner surface of the cathode electrode plate, and the surfaces of the anode mesh electrode and the cathode mesh electrode are coated with a conductive, insoluble substance to form a coating film.
11. The electrolytic apparatus of claim 10,
ruthenium, iridium, and platinum are selected as the conductive and insoluble substance.
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