WO2022037493A1 - Electrode plate unit and ozone generator - Google Patents

Abstract

Disclosed in the present application are an electrode plate unit and an ozone generator. The electrode plate unit comprises a first electrode plate, a second electrode plate, and an ion exchange membrane sandwiched between the first electrode plate and the second electrode plate. The first electrode plate and the second electrode plate are formed by cutting an electrode board. The first electrode plate and the second electrode plate each comprise a raised tooth and an open slot. The raised tooth and the open slot have the same shape and size such that the first electrode plate and the second electrode plate are spliced together in a complementary manner, and when the first electrode plate, the ion exchange membrane and the second electrode plate are stacked, the open slots of the first electrode plate and the second electrode plate are aligned with each other. The electrode plate unit improves the utilization rate of the electrode board, reduces waste materials, and saves cost. In addition, the ozone generator comprises the electrode plate unit, and the material cost is low.

Description

Electrode unit and ozone generator technical field

The present invention relates to the technical field of electrode assemblies, and more particularly, to an electrode sheet unit. In addition, the present invention also relates to an ozone generator including the above-mentioned electrode sheet unit.

Background technique

In the ozone generator, it needs to be applied to the electrode sheet unit to generate ozone by the electrolysis reaction.

The electrode sheet unit includes an anode, a cathode and an ion-exchange membrane. The ion-exchange membrane is sandwiched between the anode and the cathode. When the power is turned on, oxidation-reduction reactions occur on the anode and the cathode respectively. The anode undergoes an oxidation reaction to oxidize water into Oxygen and ozone; a reduction reaction occurs at the cathode, reducing water to hydrogen.

The cathode and the anode in the prior art are generally flat electrode sheets, and a circular through hole or a rectangular through hole is formed in the middle of the electrode sheet to allow the electrolyzed ions to pass through.

However, since both the anode and cathode electrode sheets are formed by coating the surface of the diamond electrode, the price of the electrode sheet is relatively high. However, in the existing electrode sheet, material needs to be removed in the middle part of the flat plate to process a circular through hole or a rectangular through hole, which generates a lot of waste and increases the cost of the electrode sheet.

To sum up, how to provide an electrode sheet unit that can reduce waste and save costs is an urgent problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide an electrode sheet unit to reduce waste and save costs.

Another object of the present invention is to provide an ozone generator including the above-mentioned electrode sheet unit, which has a low material cost.

In order to achieve the above object, the present invention provides the following technical solutions:

An electrode sheet unit, comprising a first electrode sheet, a second electrode sheet, and an ion exchange membrane sandwiched between the first electrode sheet and the second electrode sheet, the first electrode sheet and the second electrode sheet The two electrode sheets are both formed by cutting an electrode plate. The first electrode sheet and the second electrode sheet both include raised teeth and open grooves. The raised teeth and the open grooves have the same shape and size, so that The first electrode sheet and the second electrode sheet can be spliced together in a complementary form, and at the same time, when the first electrode sheet, the ion exchange membrane and the second electrode sheet are stacked, the The opening grooves of the first electrode sheet and the second electrode sheet are aligned with each other.

Preferably, at least one of the first electrode sheet and the second electrode sheet is a boron-doped diamond electrode sheet.

Preferably, the boron-doped diamond electrode sheet includes a base material and a boron-doped diamond film provided on the surface of the base material.

Preferably, the whole of the boron-doped diamond electrode sheet is boron-doped diamond produced by natural growth.

Preferably, the thicknesses of the first electrode sheet and the second electrode sheet both range from 0.2 mm to 2 mm.

Preferably, the thicknesses of the first electrode sheet and the second electrode sheet are both in the range of 0.3 mm to 0.8 mm.

Preferably, both the first electrode sheet and the second electrode sheet include a comb-shaped electrode sheet, a fishbone-shaped electrode sheet, a C-shaped electrode sheet, an E-shaped electrode sheet or an L-shaped electrode sheet.

Preferably, the corners of the protruding teeth and the opening groove have a preset arc.

Preferably, it further comprises a first conductive sheet and a second conductive sheet that are respectively attached and stacked with the respective sides of the first electrode sheet and the second electrode sheet away from the ion exchange membrane.

An ozone generator includes an electrode sheet unit, and the electrode sheet unit is any one of the above-mentioned electrode sheet units.

In the electrode sheet unit provided by the present invention, since the shape and size of the protruding teeth and the opening grooves are the same, that is, the protruding teeth and the opening grooves can be fitted with each other, the first electrode sheet and the first electrode sheet and the second electrode sheet can be connected in a complementary form. The two electrode sheets are spliced together, so that the raised teeth of the first electrode sheet can just make up for the vacancy in the opening groove of the second electrode sheet, and the raised teeth of the second electrode sheet can just make up for the opening groove of the first electrode sheet. vacancies, that is, the first electrode sheet and the second electrode sheet can form a flat plate after splicing.

Therefore, when forming the first electrode sheet and the second electrode sheet, a flat electrode sheet can be used for cutting, and one electrode sheet is continuously cut according to a preset path, and two electrodes with the same shape can be formed after one cutting process. piece.

It can be seen from this that only a small amount of material on both sides of the plate needs to be removed to ensure that the shapes of the protruding teeth and the opening grooves on the outermost side of the two electrode plates are the same, and the waste of materials in the middle of the electrode plate is avoided, that is, In this way, a lot of waste can be avoided, the material of the whole electrode plate can be maximized, the utilization rate of the electrode plate is improved, the waste material is reduced, and the cost is saved.

The ozone generator provided by the present invention includes an electrode sheet unit, and its material cost is low.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an electrode sheet unit provided by a specific embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the first electrode sheet and the second electrode sheet provided by the specific embodiment 1;

FIG. 3 is a schematic structural diagram of the first electrode sheet and the second electrode sheet shown in FIG. 2 after splicing;

FIG. 4 is a schematic structural diagram of the first electrode sheet and the second electrode sheet provided by the second embodiment;

FIG. 5 is a schematic structural diagram of the first electrode sheet and the second electrode sheet shown in FIG. 4 after splicing;

FIG. 6 is a schematic structural diagram of the first electrode sheet and the second electrode sheet provided by the third embodiment;

FIG. 7 is a schematic structural diagram of the first electrode sheet and the second electrode sheet shown in FIG. 6 after splicing;

FIG. 8 is a schematic structural diagram of the first electrode sheet and the second electrode sheet provided in Embodiment 4;

FIG. 9 is a schematic structural diagram of the first electrode sheet and the second electrode sheet shown in FIG. 8 after splicing;

10 is an exploded view of an ozone generator provided by a specific embodiment of the present invention;

Figure 11 is a cross-sectional view of the assembled ozone generator shown in Figure 10;

FIG. 12 is a partial enlarged view of A in FIG. 11 .

The reference numerals in Figures 1 to 12 are as follows:

1 is the first electrode sheet, 11 is the raised tooth, 12 is the opening slot, 2 is the second electrode sheet, 3 is the ion exchange membrane, 4 is the first conductive sheet, 5 is the second conductive sheet, 6 is the first shell , 7 is the second shell.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The core of the present invention is to provide an electrode sheet unit to reduce waste and save costs. Another core of the present invention is to provide an ozone generator including the above-mentioned electrode sheet unit with low material cost.

Please refer to FIG. 1-FIG. 12, which are the accompanying drawings of the description of the present invention.

The present invention provides an electrode sheet unit, which mainly includes a first electrode sheet 1 , a second electrode sheet 2 and an ion exchange membrane 3 , and the ion exchange membrane 3 is sandwiched between the first electrode sheet 1 and the second electrode sheet 2 .

Specifically, the first electrode sheet 1 and the second electrode sheet 2 are both formed by cutting electrode plates, and both the first electrode sheet 1 and the second electrode sheet 2 include protruding teeth 11 and opening grooves 12, and the protruding teeth 11 and opening grooves The shape and size of 12 are the same, so that the first electrode sheet 1 and the second electrode sheet 2 can be spliced together in a complementary form, and at the same time, the first electrode sheet 1, the ion exchange membrane 3 and the second electrode sheet 2 are stacked. When set, the opening grooves 12 of the first electrode sheet 1 and the second electrode sheet 2 are aligned with each other.

That is to say, the protruding teeth 11 and the opening grooves 12 can be fitted with each other. Therefore, the first electrode sheet 1 and the second electrode sheet 2 can be spliced together in a complementary manner. In this way, the protrusions of the first electrode sheet 1 The teeth 11 can just make up for the vacancy at the opening slot 12 of the second electrode sheet 2, and the protruding teeth 11 of the second electrode sheet 2 can just make up for the vacancy at the opening slot 12 of the first electrode sheet 1, that is, the first electrode After the sheet 1 and the second electrode sheet 2 are spliced together, a flat plate can be formed.

Therefore, when forming the first electrode sheet 1 and the second electrode sheet 2, a flat electrode sheet can be used for cutting, one electrode sheet is continuously cut according to a preset path, and two electrodes with the same shape can be formed after one cutting process. electrode pads.

It can be seen from this that, as shown in Figures 3, 5, 7 and 9, it is only necessary to remove very little material on both sides of the plate to ensure that the outermost protruding teeth 11 and the opening grooves 12 of the two electrode sheets have the same shape , avoid the waste of material in the middle part of the electrode plate, that is, it can avoid the generation of more waste materials, maximize the utilization of the material of the entire electrode plate, improve the utilization rate of the electrode plate, reduce waste, and save costs. .

It should be noted that the first electrode sheet 1 and the second electrode sheet 2 may be formed by cutting the same electrode plate, or may be formed by cutting different electrode plates.

When the first electrode sheet 1 and the second electrode sheet 2 are formed by cutting the same electrode plate, the first electrode sheet 1 and the second electrode sheet 2 are made of the same material; when the first electrode sheet 1 and the second electrode sheet 2 are made of different When the electrode plate is cut and formed, the combination of electrode plates of different materials can be realized.

It can be understood that in actual production, for mass production, electrode plates of different materials can be selected for cutting according to actual needs to form the first electrode sheet 1 and the second electrode sheet 2 of different materials, so as to realize Various combinations of the first electrode sheet 1 and the second electrode sheet 2.

In addition, those skilled in the art know according to common knowledge that, during use, that is, when forming an electrode sheet unit, the first electrode sheet 1 , the ion exchange membrane 3 and the second electrode sheet 2 are closely attached and stacked together. , at this time, it is necessary to ensure that the raised teeth 11 of the first electrode sheet 1 and the second electrode sheet 2 are arranged oppositely, and the opening grooves 12 of the first electrode sheet 1 and the second electrode sheet 2 are arranged oppositely, so that the first electrode sheet 1 and the opening groove 12 of the second electrode sheet 2 can form a channel for ions to pass through.

Preferably, when the first electrode sheet 1 , the ion exchange membrane 3 and the second electrode sheet 2 are stacked, the opening directions of the opening grooves 12 of the first electrode sheet 1 and the second electrode sheet 2 are opposite.

During the electrolysis reaction, the protruding teeth 11 electrolyze water and undergo a redox reaction with ions, and the open grooves 12 allow hydrogen ions to pass through and pass through the ion exchange membrane 3 .

It can be understood that the ion exchange membrane 3 has the function of passing hydrogen ions, while other ions and water and other substances cannot pass through. Therefore, after electrification, the anode is electrolyzed to generate oxygen ions and hydrogen ions. The hydrogen ions are attracted by the cathode, and will pass through the ion exchange membrane 3 from the open slot 12 and reach the cathode to be oxidized into hydrogen gas. At the same time, the oxygen ions of the anode will be reduced to ozone. .

Obviously, the more the number of open grooves 12, the larger the opening area of a single open groove 12, the more hydrogen ions generated by electrolysis pass through the ion exchange membrane 3 under a certain current during the reaction, so that the occurrence of A fuller electrolysis reaction produces more ozone.

In addition, the protruding teeth 11 and the opening grooves 12 are of the same shape and size, which improves the electrolysis efficiency, which is beneficial to electrolyze more water and generate more ozone under a certain voltage and current.

At the same time, the open grooves 12 will affect the original flow state of the water flow, and the plurality of open grooves 12 will have a certain turbulent effect on the water flow, and have a certain scouring effect on the impurities attached to the surface of the raised teeth 11, thereby helping to reduce the first electrode. The adhesion amount of impurities on the surfaces of the sheet 1 and the second electrode sheet 2 further increases the effective life of the first electrode sheet 1 and the second electrode sheet 2 .

In order to improve the electrolysis efficiency, on the basis of the above embodiment, at least one of the first electrode sheet 1 and the second electrode sheet 2 is a boron-doped diamond electrode sheet.

That is to say, in this embodiment, one of the first electrode sheet 1 and the second electrode sheet 2 must be a boron-doped diamond electrode sheet, and the other sheet can be a boron-doped diamond electrode sheet or other conductive materials. electrode pads.

Preferably, the first electrode sheet 1 and the second electrode sheet 2 are both boron-doped diamond electrode sheets.

That is to say, the first electrode sheet 1 and the second electrode sheet 2 are made of the same material, both of which are boron-doped diamond materials.

It can be understood that with the increase of the electrolysis reaction time, certain impurities will remain on the surface of the negative electrode sheet, resulting in a decrease in the efficiency of the electrolysis reaction. Therefore, after a period of accumulation, the ozone concentration will be lower than the effective bactericidal concentration.

When the first electrode sheet 1 and the second electrode sheet 2 are both boron-doped diamond electrode sheets, the cathode and anode can be switched through circuit control, so that the lifespan of the first electrode sheet 1 and the second electrode sheet 2 can be balanced. , to maximize the overall life of the electrode unit.

Considering the specific formation method of the boron-doped diamond electrode sheet, on the basis of the above embodiments, the boron-doped diamond electrode sheet includes a base material and a boron-doped diamond film provided on the surface of the base material.

It should be noted that the specific material of the base material is not limited in this embodiment, and those skilled in the art can select it according to actual needs.

As another implementation manner, on the basis of the above embodiments, the whole boron-doped diamond electrode sheet is a boron-doped diamond produced by natural growth.

That is, the overall material of the boron-doped diamond electrode sheet is uniform.

In order to ensure the structural strength of the first electrode sheet 1 and the second electrode sheet 2, and at the same time to ensure that they have smaller sizes, on the basis of the above embodiment, the thickness range of the first electrode sheet 1 and the second electrode sheet 2 All include 0.2mm ~ 2mm.

Further preferably, on the basis of the above embodiment, the thicknesses of the first electrode sheet 1 and the second electrode sheet 2 are both in the range of 0.3 mm to 0.8 mm.

In this embodiment, both the first electrode sheet 1 and the second electrode sheet 2 are relatively thin, so that the structure of the electrode sheet unit is compact.

It should be noted that the present invention does not limit the specific shapes of the first electrode sheet 1 and the second electrode sheet 2, as long as it is ensured that both the first electrode sheet 1 and the second electrode sheet 2 have raised teeth 11 and opening grooves 12, And the shape and size of both can be the same.

Preferably, the shape and size of the first electrode sheet 1 and the second electrode sheet 2 are identical.

As a preferred solution, on the basis of the above embodiment, the first electrode sheet 1 and the second electrode sheet 2 both include comb-shaped electrode sheets, fishbone-shaped electrode sheets, C-shaped electrode sheets, E-shaped electrode sheets or L-shaped electrode sheets Shaped electrodes, etc.

Obviously, these electrode sheets are easy to cut, with continuous contours and regular shapes.

Further, as shown in FIGS. 4 and 5 , on the basis of the above embodiments, the corners of the protruding teeth 11 and the opening grooves 12 have a preset arc.

In addition, on the basis of the above-mentioned embodiment, the first conductive sheet 4 and the second conductive sheet 4 and the second conductive sheet 4 and the second conductive sheet 4 and the second conductive sheet 4 and the one side of the first electrode sheet 1 and the second electrode sheet 2 which are respectively away from the ion exchange membrane 3 are also included. slice 5.

That is, in this embodiment, the first conductive sheet 4 , the first electrode sheet 1 , the ion exchange membrane 3 , the second electrode sheet 2 and the second conductive sheet 5 are closely attached and stacked in sequence to form an electrode slice unit.

In addition to the above-mentioned electrode sheet unit, the present invention also provides an ozone generator including the electrode sheet unit disclosed in the above embodiments. Please refer to the prior art for the structure of other parts of the ozone generator, which will not be repeated herein.

For example, as shown in FIG. 11 , the ozone generator further includes a first casing 6 and a second casing 7 , and the electrode sheet unit described above is installed between the first casing 6 and the second casing 7 .

When using the ozone generator, a voltage between 5-30V is preferably applied to both ends of the electrode. After the water enters the ozone generator, a reaction occurs at the electrode unit, and ozone, water and hydrogen are generated through the electrolysis of water.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

The electrode sheet unit and the ozone generator provided by the present invention are described in detail above. The principles and implementations of the present invention are described herein by using specific examples, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can also be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims (10)

An electrode sheet unit, comprising a first electrode sheet (1), a second electrode sheet (2), and an ion exchange sandwiched between the first electrode sheet (1) and the second electrode sheet (2) Membrane (3), characterized in that both the first electrode sheet (1) and the second electrode sheet (2) are formed by cutting an electrode plate, and the first electrode sheet (1) and the second electrode sheet Each of the sheets (2) comprises raised teeth (11) and open grooves (12), and the raised teeth (11) and the open grooves (12) have the same shape and size, so that the first electrode sheet (1) and the second electrode sheet (2) can be spliced together in a complementary form, and at the same time, the first electrode sheet (1), the ion exchange membrane (3) and the second electrode sheet (2) When stacked, the opening grooves (12) of the first electrode sheet (1) and the second electrode sheet (2) are aligned with each other. The electrode sheet unit according to claim 1, wherein at least one of the first electrode sheet (1) and the second electrode sheet (2) is a boron-doped diamond electrode sheet. The electrode sheet unit according to claim 2, wherein the boron-doped diamond electrode sheet comprises a base material and a boron-doped diamond film provided on the surface of the base material. The electrode sheet unit according to claim 2, wherein the whole of the boron-doped diamond electrode sheet is a boron-doped diamond produced by natural growth. The electrode sheet unit according to any one of claims 1-4, characterized in that, the thicknesses of the first electrode sheet (1) and the second electrode sheet (2) both range from 0.2 mm to 2 mm. The electrode sheet unit according to claim 5, characterized in that the thicknesses of the first electrode sheet (1) and the second electrode sheet (2) are both in the range of 0.3 mm to 0.8 mm. The electrode sheet unit according to any one of claims 1-4, wherein the first electrode sheet (1) and the second electrode sheet (2) both comprise comb-shaped electrode sheets and fishbone-shaped electrodes. sheet, C-shaped electrode sheet, E-shaped electrode sheet or L-shaped electrode sheet. The electrode sheet unit according to claim 7, characterized in that, the corners of the protruding teeth (11) and the opening grooves (12) have preset arcs. The electrode sheet unit according to claim 1, characterized in that it further comprises an electrode sheet ( 1 ) and the second electrode sheet ( 2 ) which are respectively away from the ion exchange membrane ( 3 ). The sides correspond to the first conductive sheet (4) and the second conductive sheet (5) that are laminated and laminated. An ozone generator comprising an electrode sheet unit, wherein the electrode sheet unit is the electrode sheet unit according to any one of claims 1-9.

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