WO2017054392A1

WO2017054392A1 - Electrolytic cell apparatus with separated anode and cathode chambers for electrolytic preparation of ozone water

Info

Publication number: WO2017054392A1
Application number: PCT/CN2016/073806
Authority: WO
Inventors: 钟建华; 张文英
Original assignee: 钟建华; 张文英
Priority date: 2015-09-30
Filing date: 2016-02-15
Publication date: 2017-04-06
Also published as: CN105088267B; CN105088267A

Abstract

An electrolytic cell apparatus with separated anode and cathode chambers for electrolytic preparation of ozone water comprising an electrolytic tank, wherein the electrolytic tank is provided with a cathode electrode (5) and an anode electrode (3), the bottom of the cathode electrode (5) and the anode electrode (3) is in contact with the bottom of the electrolytic tank, the electrolytic tank is separated into a mutually independent anode chamber (6) and cathode chamber (7), a separation part of the anode chamber (6) and the cathode chamber (7) is arranged to allow an ion to pass through but prevent hydrogen from passing through a proton exchange film (8) of an anode region. In the above-mentioned structural design, the anode chamber (6) and the cathode chamber (7) are separated and are not in communication with each other, so water in the cathode chamber (7) cannot mingle in the anode chamber (6), and therefore, hydrogen generated in the cathode chamber (7) is prevented from mingling in the anode chamber (6) to cause a neutralization reaction with ozone O₃, thereby reducing the consumption of ozone O₃ and improving the production efficiency and content of ozone O₃.

Description

Electrolysis cell device for separating anode and cathode chambers for electrolyzing ozone water

Technical field

The invention relates to the research field of an electrolytic cell device, in particular to an electrolytic cell device for separating a cathode and cathode chamber for electrolyzing ozone water.

Background technique

The application of electrolyzed water was used in the 1970s when NASA used manned spacecraft to supply oxygen to astronauts. Especially after the 1980s, the application of solid polymer electrolyte (SPE) technology was popularized in the preparation of hydrogen and oxygen from electrolyzed water. Using a general conductive material as an electrode, an electrochemical reaction can be generated on the anode and cathode surfaces to generate oxygen and hydrogen, respectively. Conductive diamond material has been proven to have excellent electrochemical performance. Conductive diamond is used as the anode to make ozone directly soluble in water, referred to as ozone water.

Chinese patents CN20061009226.7 and CN20118006557.9 use diamond electrodes to prepare ozone water, but there is no separation between the anode and cathode regions. The anode chamber and the cathode chamber are in communication (as shown in Figure 1), and the ozone generated after electrolysis will be The mixed areas are mixed, so that the hydrogen in the water is oxidized by the ozone, and the ozone content is diluted, resulting in low ozone generator efficiency and low ozone concentration.

Summary of the invention

The main object of the present invention is to overcome the shortcomings and deficiencies of the prior art, and to provide an electrolytic cell device for separating the anode and cathode chambers for electrolytically preparing ozone water for improving the production efficiency and content of ozone O ₃ .

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

An electrolytic cell device for separating a cathode and cathode chamber for electrolyzing ozone water, comprising an electrolytic cell, wherein the electrolytic cell is provided with a cathode electrode and an anode electrode, and the bottom of the cathode electrode and the anode electrode are electrically The bottom end of the deflux is completely in contact, and the electrolytic cell is divided into mutually independent anode and cathode chambers, and the anode and cathode chambers are provided with a proton exchange membrane that allows ions to pass through but isolates hydrogen from passing through the anode region.

Preferably, the cathode chamber is provided with a vent hole for discharging the generated hydrogen gas.

Preferably, the anode electrode and the cathode electrode are provided with through holes for allowing water to pass therethrough.

Preferably, the through hole is a circular hole, a square hole, a rectangular hole, a tapered hole, a strip hole, a polygonal hole or an irregular shape hole.

Preferably, one or more pairs of anode electrodes and cathode electrodes are provided in the electrolytic cell to form two or more anode chambers and cathode chambers.

Preferably, the anode electrode comprises an anode terminal, an anode substrate and a conductive coating layer, the cathode electrode comprising a cathode terminal, a cathode substrate and a conductive coating layer, the conductive coating layer being directly connected to the cathode terminal and the anode terminal.

Preferably, the anode terminal and the cathode terminal are elastic conductive clips, and the elastic conductive clip directly contacts the conductive film; or the anode terminal and the cathode terminal are connected to the conductive film through a conductive adhesive, the electricity The bond is a conductive silver paste or a conductive tin paste.

Preferably, the anode electrode is composed of a conductive material, the anode electrode is a conductive diamond piece, or a conductive diamond film based on a silicon wafer; the cathode electrode is composed of a conductive material, and the cathode electrode is a conductive diamond piece. Or a conductive diamond film on a silicon substrate, or a stainless steel sheet.

Preferably, the anode electrode and the cathode electrode are provided with an active material containing a catalytic action.

Preferably, the electrolytic cell device is driven by direct current, alternating current or pulsed.

Compared with the prior art, the present invention has the following advantages and beneficial effects:

(1) The structural design of the present invention separates the anode chamber from the cathode chamber and does not communicate with each other; so that the water in the cathode chamber does not mix into the anode chamber, thereby preventing hydrogen generated in the cathode chamber from being mixed into the anode chamber and ozone. O ₃ neutralization reaction takes place, thereby reducing the consumption of ozone O _3, to improve ozone production efficiency and O ₃ content.

(2) In the present invention, since the conductive film of the plating electrode is directly connected, the base material of the plating electrode of the electrolytic cell may be a non-conductive base material such as glass, silicon wafer, ceramic, etc.; or a conductive base material may also be used. . Therefore, the selection range of the base material is greatly expanded, and the conductivity of the base material has no adverse effect on the coated electrode, so that the designer can easily select those base materials with better adhesion of the coating. For example, a silicon wafer is used as a substrate material and a conductive diamond film is plated thereon, and the prepared electrode coating has strong adhesion and is not easy to be stripped, so the electrode has a long life.

(3) In the present invention, the cathode terminal and the anode terminal are directly connected to the conductive film, so that there is no influence of the series resistance of the base material, so that the input voltage of the electrolytic cell can be lowered, the energy consumption of the electrolytic reaction is lowered, and the water temperature is also lowered. The life of the electrode is also extended a lot.

DRAWINGS

1 is a schematic view of an electrolytic cell device in which a cathode chamber and an anode chamber are not separated in the prior art;

2 is a schematic structural view of an electrolytic cell device in which a cathode chamber and an anode chamber are separated according to the present invention;

3 is a schematic structural view of an electrolytic cell device in which a plurality of sets of cathode chambers and anode chambers are separated according to the present invention;

4(a) to 4(g) are schematic views showing the structure of various through holes of the present invention.

DESCRIPTION OF REFERENCE NUMERALS: 1, anode terminal; 2, cathode terminal; 3, anode electrode; 4, conductive diamond film; 5, cathode electrode; 6, anode chamber; 7, cathode chamber; 8, proton exchange membrane; Hole; 10, anode chamber outlet; 11, cathode chamber outlet; 12, inlet; 13, sealing material.

detailed description

The present invention will be further described in detail below with reference to the embodiments and the accompanying drawings, but the embodiments of the present invention The formula is not limited to this.

Example 1

As shown in FIG. 2, the present invention discloses an electrolytic cell device for separating a cathode and cathode chamber for electrolyzing ozone water, comprising an electrolytic cell, in which a cathode electrode 5 and an anode electrode 3 are vertically disposed. The bottoms of the cathode electrode and the anode electrode are in complete contact with the bottom end of the electrolytic cell, and the electrolytic cell is divided into mutually independent anode chambers 6 and cathode chambers 7. The anode chambers 6 and the cathode chambers 7 are provided with hydrogen ion permeation. Passing, but isolating hydrogen through the proton exchange membrane 8 in the anode region. The invention separates the anode chamber 6 from the cathode chamber 7 and does not communicate with each other; so that the water in the cathode chamber does not mix into the anode chamber, thereby avoiding that hydrogen generated in the cathode chamber does not mix into the anode chamber and ozone O ₃ occurs. and the reaction, thus reducing the consumption of ozone O _3, to improve production efficiency and the concentration of ozone O _3.

In the embodiment, the cathode chamber is provided with a vent hole for discharging the generated hydrogen gas, and the hydrogen gas can be smoothly discharged from the cathode chamber, which is advantageous for further electrolysis.

At the same time, the anode electrode is provided with a through hole 9, as shown in FIG. 4 (a) - FIG. 4 (g), the through hole is a circular hole, a square hole, a rectangular hole, a tapered hole, a strip hole, a polygonal hole or A variety of patterns and the like such as irregular shape holes, of course, the above-mentioned through holes are not strictly limited in shape, and other forms of shapes are also applicable to the technical solution of the present invention.

In the present embodiment, water flows in from the inlet 12, flows out from the anode chamber outlet 10 and the cathode chamber outlet 11, and electrolyzes ozone water.

In this embodiment, the anode electrode and the cathode electrode may contain a catalytic active material, and the electrolytic cell device samples the direct current drive.

As shown in FIG. 3, a plurality of pairs of anode electrodes and cathode electrodes are provided in the electrolytic cell to form a plurality of pairs of anode chambers and cathode chambers. By this form, the amount of ozone generated can be further increased.

In this embodiment, two structural models are produced for experimental comparison. The experimental results are summarized as follows:

As can be seen from the above experiments, the concentration of ozone was significantly improved after the application of the technical solution of the present invention.

Example 2

In this embodiment, other technical features are the same as those of Embodiment 1 except for the following technical features: the anode electrode includes an anode terminal 1, an anode substrate, and a conductive plating layer, and the cathode electrode includes a cathode terminal 2, a cathode substrate, and A plating film layer is directly connected, and the conductive plating layer is directly connected to the cathode terminal and the anode terminal. After flowing out of the cathode terminal and the anode terminal, the current flows directly through the conductive plating layer to perform electrolysis in the electrolytic bath, and the portion where the anode terminal and the cathode terminal are connected to the conductive plating layer is disposed outside the electrolytic cell.

In this embodiment, the anode terminal and the cathode terminal are elastic conductive clips. At one end of the anode, the elastic conductive clip just holds the anode terminal and the conductive film, and the current passes through the anode terminal, and directly communicates with the substrate without passing through the substrate. Membrane connection; at one end of the cathode, the elastic conductive clip also just clamps the cathode terminal and the conductive film, and the current passes through the cathode terminal, and is directly connected to the conductive film without passing through the substrate, and the electrolysis is performed under the joint action of the anode and cathode terminals. The water in the tank is electrolyzed to obtain ozone. In this embodiment, since the conductive layer of the plating electrode is directly connected, the base material of the plating electrode of the electrolytic cell may be a non-conductive base material, such as glass, silicon wafer, ceramic, etc. Etc.; Conductive base material can also be used, so the selection range of the base material is greatly expanded, and the conductivity of the base material has no adverse effect on the coated electrode.

In this embodiment, the elastic conductive clip is made of a phosphor bronze sheet, and the silicon wafer is used as a substrate material and a conductive diamond film 4 is plated thereon, and the prepared electrode coating has strong adhesion and is not easy to be stripped. So The electrode has a long life, and the elastic conductive clip and the conductive film connection portion are sealed with the sealing material 13 to prevent corrosion. Of course, the elastic conductive clip in this embodiment is not limited to one type of phosphor bronze. Other conductive materials conforming to the technical solutions of the present application are within the protection scope of the present application.

This example is compared by experiments, and the experimental results are summarized as follows:

Note: This application was fabricated using the same process: a conductive silicon wafer coated with a conductive diamond film. The working current is controlled to 1000mA (constant current test), and the minimum operating voltage of the two test modules has obvious difference: the design voltage of the direct connection mode is lower and the power consumption is lower. After 3 hours of long-term cyclic operation, The water temperature is significantly reduced.

The experimental results show that the electrode with direct connection of the coated electrode has a longer test life than the two-way (equivalent to two anodes) cycle operation.

As an alternative to the embodiment, the anode terminal and the cathode terminal are connected to the conductive film through an electrical bond, and the current flows directly from the anode terminal (or the cathode terminal) through the conductive film to realize electrolysis. In this embodiment, Since the conductive layer of the plating electrode is directly connected, there is no influence of the series resistance of the base material, so that the input voltage of the electrolytic cell can be lowered, the energy consumption of the electrolytic reaction is lowered, the water temperature is also lowered, and the service life of the electrode is also prolonged.

In this embodiment, the electrical bonding material is an electric silver paste or a conductive tin paste, which ensures the connection between the anode terminal (or) cathode terminal and the conductive film, and at the same time ensures good electrical conductivity between the two, of course. In the present embodiment, in addition to the above-mentioned adhesive, other adhesives conforming to the technical solutions of the present application are also within the scope of protection of the present application.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, and modifications made without departing from the spirit and principles of the present invention. Alternatives, combinations, and simplifications are all equivalents and are included in the scope of the present invention.

Claims

An electrolytic cell device for separating a cathode and cathode chamber for electrolyzing ozone water, comprising an electrolytic cell, wherein the electrolytic cell is provided with a cathode electrode and an anode electrode, and the bottom of the cathode electrode and the anode electrode are electrolyzed The bottom end of the trough is in full contact, dividing the electrolysis cell into mutually independent anode and cathode chambers, the anode and cathode chambers being separated from a proton exchange membrane that allows ions to pass through but isolates hydrogen from passing through the anode region.
The electrolytic cell device for separating a cathode and cathode chamber for electrolytically preparing ozone water according to claim 1, wherein the cathode chamber is provided with a vent hole for discharging the generated hydrogen gas.
The electrolytic cell device for separating a cathode and cathode chamber for electrolytically preparing ozone water according to claim 1, wherein the anode electrode and the cathode electrode are provided with through holes for allowing water to pass therethrough.
The electrolytic cell device for separating a cathode and cathode chamber for electrolytically preparing ozone water according to claim 3, wherein the through hole is a circular hole, a square hole, a rectangular hole, a tapered hole, a strip hole, and a polygonal hole. Or irregularly shaped holes.
The electrolytic cell device for separating a cathode and cathode chamber for electrolytically preparing ozone water according to claim 1, wherein one or more pairs of anode electrodes and cathode electrodes are provided in the electrolytic cell to form two Or multiple anode and cathode chambers.
The electrolytic cell device for separating a cathode and cathode chamber for electrolytically preparing ozone water according to claim 1, wherein the anode electrode comprises an anode terminal, an anode substrate and a conductive plating layer, and the cathode electrode comprises a cathode terminal, A cathode substrate and a conductive coating layer, the conductive coating layer being directly connected to the cathode terminal and the anode terminal.
The electrolytic cell device for separating a cathode and cathode chamber for electrolytically preparing ozone water according to claim 6, wherein the anode terminal and the cathode terminal are elastic conductive clips, and the elastic conductive clip is in direct contact with the conductive And the anode terminal and the cathode terminal are connected to the conductive film through a conductive adhesive, and the electrical bond is a conductive silver paste or a conductive tin paste.
The electrolytic cell device for separating a cathode and cathode chamber for electrolytically preparing ozone water according to claim 1, wherein the anode electrode is composed of a conductive material, the anode electrode is a conductive diamond piece, or a silicon wafer is used. a conductive diamond film of the substrate; the cathode electrode being composed of a conductive material, the cathode electrode being a conductive diamond sheet, or a conductive diamond film on a silicon wafer substrate, or a stainless steel sheet.
The electrolytic cell device for separating a cathode and cathode chamber for electrolytically preparing ozone water according to claim 1, wherein the anode electrode and the cathode electrode are provided with an active material containing a catalytic action.
The electrolytic cell device for separating a cathode and cathode chamber for electrolytically preparing ozone water according to claim 1, wherein the electrolytic cell device is driven by direct current, alternating current or pulsed.