Pole chamber isolation electrolysis device

Abstract

The invention provides a pole chamber isolation electrolysis device. The pole chamber isolation electrolysis device comprises an outer shell and an electrolysis module, the electrolysis module comprises a mounting shell and an electrolysis unit, the electrolysis unit is mounted on the mounting shell, and the electrolysis unit comprises a first electrode, an ion exchange membrane and a second electrode; the ion exchange membrane is connected with the mounting shell to form a closed electrolysis cavity, the first electrode is arranged in the electrolysis cavity, and the second electrode is arranged on the side, opposite to the first electrode, of the ion exchange membrane; a water inlet end and a water outlet end are formed in the mounting shell, the water inlet end is communicated to the electrolysis cavity, and the electrolysis cavity is communicated to the water outlet end; the outer shell is provided with a containing cavity, and the installation shell is connected with the outer shell so that the electrolysis unit can be arranged in the containing cavity.

Description

Technical Field

[0001] The invention relates to the field of electrolytic cells, in particular to an electrolytic cell with separated anode and cathode chambers. Background Art

[0002] The diaphragm electrolyzer uses a diaphragm to separate the positive and negative electrodes to prevent the solutions (products) of the two electrodes from mixing with each other. The existing electrolyzer structure usually adopts a composite superposition structure of multiple electrolytic units. During assembly, multiple electrodes, membranes and other electrolytic components are stacked and installed, which has the problems of large equipment size, complex shunt structure and high maintenance cost. Summary of the invention

[0003] Based on the above-mentioned problems, the present application aims to propose an electrolysis device with separated anode and cathode chambers.

[0004] An electrolytic device with isolated polar chambers, comprising an outer shell and an electrolytic module;

[0005] The electrolysis module comprises a mounting shell and an electrolysis unit, wherein the electrolysis unit is mounted on the mounting shell, and the electrolysis unit comprises a first electrode, an ion exchange membrane, and a second electrode;

[0006] The ion exchange membrane is connected to the mounting shell to form a closed electrolysis chamber, the first electrode is arranged in the electrolysis chamber, and the second electrode is arranged on a side of the ion exchange membrane facing away from the first electrode;

[0007] The mounting housing is formed with a water inlet and a water outlet, the water inlet is connected to the electrolysis chamber, and the electrolysis chamber is connected to the water outlet;

[0008] The outer shell has a cavity, and the mounting shell is connected to the outer shell so that the electrolytic unit is arranged in the cavity.

[0009] In one embodiment, the mounting housing has a mounting surface, and the first electrode is mounted on the mounting surface.

[0010] In one embodiment, a gasket is disposed on the mounting surface, and the gasket is disposed between the first electrode and the ion exchange membrane. The ion exchange membrane is connected to the gasket to form the electrolysis chamber between the first electrode and the ion exchange membrane.

[0011] In one embodiment, a packaging sheet is provided on the surface of the gasket, and the ion exchange membrane is installed on the packaging sheet.

[0012] In one embodiment, the mounting surface protrudes to form a support block, and the first electrode is staggered with the support block so that the support block protrudes from the surface of the first electrode.

[0013] In one embodiment, the ion exchange membrane is connected to the mounting shell and abuts against the support block so that the electrolysis chamber is formed between the first electrode and the ion exchange membrane.

[0014] In one embodiment, the surface of the mounting shell has at least two mounting surfaces, and each mounting surface is provided with an electrolysis unit.

[0015] In one embodiment, the second electrode is provided with a plurality of through holes.

[0016] In one embodiment, the mounting housing has a power connection cavity, the first electrode is connected to a first end of a power connection plate, and a second end of the power connection plate extends to the power connection cavity.

[0017] In one embodiment, a power connection post is disposed in the power connection cavity, the power connection sheet is connected to the power connection post, and the power connection post extends out of the installation shell and is disposed outside the cavity.

[0018] In one embodiment, the number of the electrolysis modules is plural.

[0019] In one embodiment, the electrode material of the first electrode and / or the second electrode is conductive silicon, conductive diamond, or one of titanium, platinum, lead, tantalum, iridium, palladium, antimony or oxides thereof.

[0020] The beneficial effects of this application are:

[0021] In the structure of the polar chamber isolation electrolysis device, on the one hand, water flows into the electrolysis chamber from the water inlet end of the installation shell, and is electrolyzed on the surface of the first electrode to produce anode products or cathode products, which are then discharged through the water outlet end. On the other hand, the chamber constitutes the electrolysis reaction chamber of the second electrode, and the water in the chamber is electrolyzed on the surface of the second electrode to produce cathode products or anode products. That is, the cathode and anode reaction chambers are arranged on two modules, the electrolysis module part has one of the reaction chambers, and the outer shell has the other reaction chamber. The electrolysis module is installed on the outer shell and can be used. Its water body diversion structure is simple, eliminating the complex flow channel structure of the existing separated electrolytic cell. According to actual needs, multiple electrolysis modules can be arranged, and multiple electrolysis modules are arranged on one outer shell. The chamber is a common reaction chamber of the second electrode in multiple electrolysis modules, and the electrolysis modules can be conveniently and easily stacked. The matching components are easy to prepare and batch assemble, which makes the equipment size of the electrolysis device miniaturized. Among them, the electrolysis module can be disassembled from the outer shell for maintenance, reducing the construction and maintenance costs of the equipment and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a schematic structural diagram of a polar chamber isolation electrolysis device according to an embodiment of the present application.

[0024] Figure 2 It is a cross-sectional view of an electrode module of an electrode chamber isolation electrolysis device according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figure 1 and Figure 2 As shown, its structure includes an electrode chamber isolation electrolysis device of an embodiment of the present application, specifically, including an outer shell 1 and an electrolysis module 2.

[0027] The electrolysis module 2 includes a mounting shell 20 and an electrolysis unit, wherein the electrolysis unit includes a first electrode 31, an ion exchange membrane 32, and a second electrode 33. The electrolysis unit is mounted on the mounting shell 20. For example, the mounting shell 20 has a mounting surface 41, and the first electrode 31 is mounted on the mounting surface 41. The ion exchange membrane 32 and the second electrode 33 are sequentially arranged on the side of the first electrode 31, that is, the side of the first electrode 31 facing away from the mounting surface 41, so that the first electrode 31, the ion exchange membrane 32, and the second electrode 33 are mounted on the mounting shell 20.

[0028] The ion exchange membrane 32 is connected to the mounting shell 20 to form a closed electrolytic chamber 23, the first electrode 31 is arranged in the electrolytic chamber 23, and the second electrode 33 is arranged on the side of the ion exchange membrane 32 facing away from the first electrode 31. That is to say, the first electrode 31 and the second electrode 33 are respectively arranged on both sides of the ion exchange membrane 32, the ion exchange membrane 32 is connected to the mounting shell 20 to separate the first electrode 31 and the second electrode 33, and the ion exchange membrane 32 is connected to the mounting shell 20 and forms an independent electrolytic chamber 23, the first electrode 31 is arranged inside the electrolytic chamber 23 to be arranged on one side of the ion exchange membrane 32, the electrolytic chamber 23 serves as the electrolytic reaction chamber of the first electrode 31, and the second electrode 33 is arranged on the other side of the ion exchange membrane 32.

[0029] Among them, the installation shell 20 is formed with a water inlet end 21 and a water outlet end 22, the water inlet end 21 is connected to the electrolysis chamber 23, and the electrolysis chamber 23 is connected to the water outlet end 22, so that the independent electrolysis chamber 23 is connected through the water inlet end 21 and the water outlet end 22, and the water flows from the water inlet end 21 into the electrolysis chamber 23 and then flows out from the water outlet end 22.

[0030] The outer shell 1 has a cavity 10, and the mounting shell 20 is connected to the outer shell 1 so that the electrolysis unit is disposed in the cavity 10. In particular, since the second electrode 33 is disposed on the other side of the ion exchange membrane 32 relative to the electrolysis cavity 23, after the mounting shell 20 is mounted on the outer shell 1, the second electrode 33 of the electrolysis unit is exposed in the cavity 10, so that the cavity 10 serves as an electrolysis reaction chamber for the second electrode 33.

[0031] For example, the outer shell 1 is provided with a water outlet 12, and the product generated by electrolysis flows out from the water outlet 12. For another example, the outer shell 1 is provided with a water inlet, and the raw water enters the cavity from the water inlet to participate in the electrolysis reaction.

[0032] In the above embodiment, the structure of the polar chamber isolation electrolysis device is that, on the one hand, water flows into the electrolysis chamber 23 from the water inlet end 21 of the installation shell 20, and is electrolyzed on the surface of the first electrode 31 to produce anode products or cathode products, and then discharged through the water outlet end 22. On the other hand, the chamber 10 constitutes the electrolysis reaction chamber of the second electrode 33, and the water in the chamber 10 is electrolyzed on the surface of the second electrode 33 to produce cathode products or anode products. That is, the cathode and anode reaction chambers are arranged on two modules, the electrolysis module 2 part has one of the reaction chambers, and the outer shell 1 has the other reaction chamber. The electrolysis module 2 is installed on the outer shell 1. The shell 1 can be used immediately. Its anode and cathode water flow separation structure is simple, eliminating the complex flow channel structure of the existing separated electrolytic cell. According to actual needs, multiple electrolytic modules 2 can be arranged on one outer shell 1. The cavity 10 is a common reaction cavity of the second electrode 33 in multiple electrolytic modules 2. The electrolytic modules 2 can be conveniently and easily stacked. The matching components are easy to prepare and batch assemble, which makes the equipment size of the electrolytic device miniaturized. The electrolytic module 2 can be disassembled from the outer shell 1 for maintenance, thereby reducing the construction and maintenance costs of the equipment and extending its service life.

[0033] In order to form the electrolytic chamber 23, in one embodiment, a gasket 6 is provided on the mounting surface 41, and the gasket 6 is provided between the first electrode 31 and the ion exchange membrane 32, wherein the gasket 6 forms a space between the first electrode 31 and the ion exchange membrane 32, and therefore, the ion exchange membrane 32 is connected to the gasket 6 to form the electrolytic chamber 23 between the first electrode 31 and the ion exchange membrane 32.

[0034] In one embodiment, Figure 1 and Figure 2 As shown, a packaging sheet is provided on the surface of the gasket 6, and the ion exchange membrane 32 is installed on the packaging sheet. The packaging sheet encapsulates the ion exchange membrane 32, so that the ion exchange membrane 32 separates the space on both sides of the first electrode 31 and the second electrode 33. Further, a packaging sheet is also provided between the ion exchange membrane 32 and the second electrode 33, and the ion exchange membrane 32 is encapsulated by the packaging sheets on both sides, thereby separating the space on both sides of the first electrode 31 and the second electrode 33. In a preferred embodiment, the packaging sheet is annular and arranged around the edge of the ion exchange membrane 32, so as to encapsulate the ion exchange membrane 32.

[0035] To form the electrolytic chamber 23, in one embodiment, please refer to Figure 1 and Figure 2The mounting surface 41 protrudes to form a support block 4, and the first electrode 31 is staggered from the support block 4 so that the support block 4 protrudes from the surface of the first electrode 31, wherein the gasket 6 forms a space between the first electrode 31 and the ion exchange membrane 32, and further, the ion exchange membrane 32 is connected to the mounting shell 20 and abuts against the support block 4, so that the electrolysis chamber 23 is formed between the first electrode 31 and the ion exchange membrane 32, and the support block 4 can provide local support for the ion exchange membrane 32.

[0036] In order to increase the yield of the anode and cathode products, in one embodiment, the surface of the mounting housing 20 has at least two mounting surfaces 41, and each of the mounting surfaces 41 is provided with an electrolysis unit. For example, the mounting housing 20 is cylindrical, the mounting housing 20 has two mounting surfaces 41, and one of the mounting surfaces 41 is provided with an electrolysis unit. For another example, the mounting housing 20 is rectangular, the mounting housing 20 has four mounting surfaces 41, and one of the mounting surfaces 41 is provided with an electrolysis unit. They can be provided according to actual conditions, and in this embodiment, they are not described one by one.

[0037] In order to improve the electrolysis efficiency, in one embodiment, Figure 2 As shown, the second electrode 33 is provided with a plurality of through holes 39. The through holes 39 can effectively increase the effective reaction area of ​​the electrode, and the water in the cavity 10 can contact the ion exchange membrane 32 through the through holes 39 of the second electrode 33, so that the ion exchange membrane 32 receives water.

[0038] It should be understood that the first electrode 31 and the second electrode 33 are connected to an external power supply, the first electrode 31 is electrically connected to the positive or negative electrode of the power supply, and the second electrode 33 is electrically connected to the negative or positive electrode of the power supply, and the polarities of the first electrode 31 and the second electrode 33 are opposite, so that an electrolysis reaction occurs to produce electrode products.

[0039] In one embodiment, the mounting shell 20 has a power connection cavity, the first electrode 31 is connected to the first end of the power connection sheet 51, the second end of the power connection sheet 51 extends to the power connection cavity, further, a power connection post 52 is provided in the power connection cavity, the power connection sheet 51 is connected to the power connection post 52, the power connection post 52 extends out of the mounting shell 20 and is arranged outside the cavity 10, wherein the first electrode 31 is connected to the power connection post 52 in the power connection cavity through the power connection sheet 51, and is connected to an external power supply through the power connection post 52, so that the external power supply can power the first electrode 31.

[0040] In one embodiment, the mounting shell 20 has a power connection cavity, the second electrode 33 is connected to the first end of the power connection sheet 51, the second end of the power connection sheet 51 extends to the power connection cavity, further, a power connection post 52 is provided in the power connection cavity, the power connection sheet 51 is connected to the power connection post 52, the power connection post 52 extends out of the mounting shell 20 and is arranged outside the cavity 10, wherein the second electrode 33 is connected to the power connection post 52 in the power connection cavity through the power connection sheet 51, and is connected to an external power supply through the power connection post 52, so that the external power supply can power the second electrode 33.

[0041] In order to increase the output of anode and cathode products, in one embodiment, the number of electrolysis modules 2 is multiple, and the electrolysis modules 2 are conveniently installed in the outer shell 1 for stacking, and the assembly quantity is selected efficiently and conveniently, thereby realizing product output regulation.

[0042] It should be understood that in order to ensure sealing, for example, a sealing material is provided between the mounting shell 20 and the outer shell 1, for example, a sealing material is provided at the connection between the power connection plate 51 and the first electrode 31 / the second electrode 33, for example, a sealing material is provided in the power connection cavity. In the structure of the present application, sealing materials are provided in all positions where sealing needs to be ensured, and they are not described one by one in this embodiment.

[0043] In one embodiment, the outer shell 1 and the water outlet 22 of the mounting shell 20 are both connected to a gas-liquid separation component. The generated cathode / anode products (such as hydrogen / oxygen) enter the gas-liquid separation component to separate the water-gas mixture into water and gas, thereby extracting the desired gas product.

[0044] In one embodiment, the electrode material of the first electrode 31 and / or the second electrode 33 is conductive silicon, conductive diamond, or one of titanium, platinum, lead, tantalum, iridium, palladium, antimony or its oxides. For another example, the first electrode 31 and / or the second electrode 33 may also be other conductive materials. The first electrode 31 and the second electrode 33 may be made of the same material.

[0045] In one embodiment, the electrode chamber isolation electrolysis device is a hydrogen / oxygen production electrolysis cell, in which the anode produces oxygen and the cathode produces hydrogen, and separate hydrogen / oxygen products can be extracted by separating the anode and cathode chambers.

[0046] Furthermore, since the hydrogen production in the electrolysis reaction is greater than the oxygen production, in one embodiment, the first electrode 31 is an anode, the second electrode 33 is a cathode, electrolysis on the anode side produces oxygen, and electrolysis on the cathode side produces hydrogen, and the cavity 10 can be configured to a volume suitable for hydrogen production.

[0047] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A polar chamber isolation electrolysis device, characterized in that: comprising an outer shell and an electrolysis module; The electrolysis module comprises a mounting shell and an electrolysis unit, wherein the electrolysis unit is mounted on the mounting shell, and the electrolysis unit comprises a first electrode, an ion exchange membrane, and a second electrode; The ion exchange membrane is connected to the mounting shell to form a closed electrolysis chamber, the first electrode is arranged in the electrolysis chamber, and the second electrode is arranged on a side of the ion exchange membrane facing away from the first electrode; The mounting housing is formed with a water inlet and a water outlet, the water inlet is connected to the electrolysis chamber, and the electrolysis chamber is connected to the water outlet; The outer shell has a cavity, and the mounting shell is connected to the outer shell so that the electrolytic unit is arranged in the cavity.

2. The polar chamber isolation electrolysis device according to claim 1, characterized in that: The mounting shell has a mounting surface, and the first electrode is mounted on the mounting surface.

3. The polar chamber isolation electrolysis device according to claim 2, characterized in that: A gasket is arranged on the mounting surface, and the gasket is arranged between the first electrode and the ion exchange membrane. The ion exchange membrane is connected to the gasket so that the electrolysis chamber is formed between the first electrode and the ion exchange membrane.

4. The polar chamber isolation electrolysis device according to claim 3, characterized in that: A packaging sheet is arranged on the surface of the gasket, and the ion exchange membrane is installed on the packaging sheet.

5. The polar chamber isolation electrolysis device according to claim 2, characterized in that: The mounting surface protrudes to form a support block, and the first electrode is staggered from the support block so that the support block protrudes from the surface of the first electrode.

6. The polar chamber isolation electrolysis device according to claim 3, characterized in that: The ion exchange membrane is connected to the installation shell and abuts against the support block to form the electrolysis chamber between the first electrode and the ion exchange membrane.

7. The polar chamber isolation electrolysis device according to claim 2, characterized in that: The surface of the mounting shell has at least two mounting surfaces, and each mounting surface is provided with an electrolysis unit.

8. The polar chamber isolation electrolysis device according to claim 1, characterized in that: The second electrode is provided with a plurality of through holes.

9. The polar chamber isolation electrolysis device according to claim 1, characterized in that: The mounting shell has a power connection cavity, the first electrode is connected to a first end of a power connection plate, and a second end of the power connection plate extends to the power connection cavity.

10. The polar chamber isolation electrolysis device according to claim 9, characterized in that: The power connection cavity is provided with a power connection post, the power connection sheet is connected to the power connection post, and the power connection post extends out of the installation shell and is arranged outside the cavity.

11. The polar chamber isolation electrolysis device according to claim 1, characterized in that: The number of the electrolysis modules is multiple.

12. The polar chamber isolation electrolysis device according to claim 1, characterized in that: The electrode material of the first electrode and / or the second electrode is conductive silicon, conductive diamond, or one of titanium, platinum, lead, tantalum, iridium, palladium, antimony or oxides thereof.

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