Composite electrolysis method

Abstract

The invention relates to a composite electrolysis method, which relates to the field of electrolysis, and comprises the following steps: S1, carrying out primary electrolysis on raw water in a first electrolytic bath to form primary electrolyzed water; s2, the primary electrolyzed water enters a second electrolytic tank for secondary electrolysis after being electrolyzed for a preset time in the first electrolytic tank, and secondary electrolyzed water is formed after the primary electrolyzed water is electrolyzed for a preset time in the second electrolytic tank; and S3, the electrolysis efficiency is improved through two times of electrolysis of the first electrolytic cell and the second electrolytic cell, and the arrangement of independently adding a transition container is avoided. The invention has the advantages that: after being electrolyzed by the first electrolytic tank, water is not raw water but electrolyzed water containing hydrogen, hydroxyl radicals, ozone and oxygen; and then the electrolyzed water is immediately introduced into the second electrolytic tank for electrolysis through negative pressure generated by the air pump, the flow velocity of the water is naturally reduced due to the fact that the electrolyzed water is rich in bubbles and the water flow velocity can be reduced due to the flow Q of the water, the electrolysis time is correspondingly prolonged due to the reduction of the flow velocity of the water, and electrolysis is more sufficient.

Description

Technical Field

[0001] This invention relates to a composite electrolysis method, belonging to the field of electrolysis. Background Technology

[0002] Currently in the field of electrochemistry, water electrolysis with oxidation potential mainly involves strongly acidic or strongly alkaline water. Strongly acidic water has a pH below 2.7, and strongly alkaline water has a pH above 11. Under these pH conditions, bacteria and microorganisms cannot survive. However, strong acids and strong alkalis are corrosive and pose potential risks in the disinfection of objects.

[0003] Current mature technologies for the production and application of electrolyzed water have certain limitations. Typically, tap water is mixed with salt and then electrolyzed using a special device to produce two types of water: acidic water (also called oxidizing (acidifying) electrolyzed water), which can be used as an environmentally friendly disinfectant, and alkaline water, which is generally not used, but in special cases, it can be diluted to provide some adjunctive treatment for certain diseases (similar to the effects of ionized water). The main characteristics of oxidizing (acidifying) electrolyzed water are its broad bactericidal spectrum and rapid sterilization. Numerous studies both domestically and internationally have proven that acidic oxidizing (acidifying) electrolyzed water has a broad bactericidal spectrum, capable of killing not only vegetative bacteria and viruses, but also spores and other pathogenic microorganisms. Laboratory sterilization tests show that due to the characteristics of oxidizing (acidifying) electrolyzed water, it is increasingly being adopted by many countries.

[0004] However, acid pickling and oxidation electrolyzing water contains a high concentration of free chlorine, which raises several safety concerns.

[0005] Therefore, the aim is to achieve the same or better effects as existing products in neutral electrolyzed water. This electrolyzed water is neutral, chlorine-free, and has strong bactericidal power. It is effective for sterilization in bathhouses, and for disinfection of specific reactions, athlete's foot, burns, abscesses, wounds, etc. It can also be used for deodorizing people and pets, improving bad breath, as a cosmetic and health beverage, and for washing food or cultivating plants. Furthermore, these effects are sustained over a long period of time. It has both strong alkaline and strong acidic characteristics, and can be used as functional water in a wide range of fields such as medical, electronics, agriculture, and food industries.

[0006] The main factors currently affecting the generation of high concentrations of active ions during neutral water electrolysis are:

[0007] Because the electrolytic cells for disinfection sprays are currently located near the outlet, and the space near the nozzle is generally small, the size of the electrolytic cells is limited, and large-volume electrolytic cells cannot be used, which affects the efficiency of electrolysis.

[0008] Some motor equipment, due to their application scenarios or particularly small and portable devices, suffer from power supply issues that prevent the electrodes from reaching the specified electrolysis voltage and current density, thus affecting the efficiency of electrolysis. Summary of the Invention

[0009] To overcome the shortcomings of existing technologies, this invention provides a composite electrolysis method. The technical solution of this invention is as follows:

[0010] A composite electrolysis method includes the following steps:

[0011] S1. Raw water undergoes primary electrolysis in the first electrolyzer to form primary electrolyzed water;

[0012] S2. After the primary electrolyzed water has been electrolyzed in the first electrolyzer for a preset time, it enters the second electrolyzer for secondary electrolysis. After the primary electrolyzed water has been electrolyzed in the second electrolyzer for a preset time, it becomes secondary electrolyzed water. S3. The two electrolysis processes in the first and second electrolyzers increase the electrolysis efficiency and avoid the need for a separate transition container.

[0013] The raw water is electrolyzed in the first and second electrolyzers, and then further electrolyzed in the Nth electrolyzer.

[0014] In step S2, during secondary electrolysis in the second electrolytic cell, the primary electrolyzed water enters the second electrolytic cell by gas-liquid mixing or by pumping in a gas source, which makes the secondary electrolyzed water rich in bubbles. The decrease in water flow rate prolongs the electrolysis time.

[0015] In step S1, a control switch is installed at the outlet of the first electrolytic cell to control the electrolysis time of the first electrolytic cell; the opening and closing time of the control switch is controlled by the control panel.

[0016] The electrolysis time of the raw water in the first electrolyzer is at least 5 seconds.

[0017] The primary electrolyzed water is electrolyzed for 5 to 20 seconds in the second electrolyzer, and the electrolysis interval between the second electrolyzer and the first electrolyzer is 1 second. The electrolysis interval is controlled by a control panel.

[0018] The first and second electrolytic cells are controlled by the same control panel. While the second electrolytic cell performs secondary electrolysis, the first electrolytic cell continues to electrolyze the raw water.

[0019] The first and second electrolytic cells are controlled by a control panel. While the second electrolytic cell is performing secondary electrolysis, the first electrolytic cell stops electrolyzing the raw water.

[0020] The anode and cathode of the first electrolytic cell are conductive diamond or a metal, wherein the metal is one of ceramic, titanium, platinum, gold, titanium alloy, nickel, palladium, platinum-ruthenium alloy, or stainless steel; the anode of the second electrolytic cell is conductive diamond, and the cathode is a metal, wherein the metal is one of ceramic, titanium, platinum, gold, titanium alloy, nickel, palladium, platinum-ruthenium alloy, or stainless steel. The advantages of this invention are:

[0021] After electrolysis in the first electrolytic cell, the water is no longer the original water, but electrolyzed water containing hydrogen, hydroxyl radicals, ozone, and oxygen. Immediately afterward, the electrolyzed water is introduced into the second electrolytic cell through negative pressure generated by an air pump for further electrolysis. Because the electrolyzed water is rich in air bubbles, the water flow rate Q will decrease, thus naturally reducing the water velocity. This decrease in water velocity will correspondingly prolong the electrolysis time, making the electrolysis more complete.

[0022] By electrolyzing neutral tap water or commercially available mineral water (Cl-free) in at least two stages of electrolysis, active particle liquid containing oxidizing components such as hydroxyl radicals or hydrogen peroxide can be stably generated. Hydroxyl radicals are known to have high oxidizing power; they are highly reactive oxidizing free radicals. Using hydroxyl radicals to treat organic matter offers advantages such as high treatment efficiency and no secondary pollution. Furthermore, electrolyzed water containing active ions has broad-spectrum efficiency, is non-toxic, has no side effects, does not induce drug resistance, leaves no residue, and has low operating costs. It operates on a purely physical disinfection principle, and the electrolysis raw materials contain no added chemicals, primarily tap water, mineral water, or purified water. It does not cause side effects or irritation to human skin, mucous membranes, respiratory tract, or eyes, and has no irritating taste.

[0023] It can be widely used in:

[0024] 1) Deodorization and disinfection in elderly care facilities and hospitals; 2) Deodorization and disinfection in hotels, restaurants, teahouses, and canteens; 3) Deodorization and disinfection in business venues and large gathering places; 4) Deodorization and disinfection in restaurants; 5) Sterilization and disinfection in medical clinics; 6) Sterilization for dentists and home use; 7) Facial spray using the oxidation potential electrolysis of water, where water penetrates through pores and the stratum corneum of the skin. It is said that the spray produces negative ions, which are beneficial to health; 8) Deodorization of pets and animal excrement; 9) Disinfection and cultivation of plants; 10) Preservation and freshness of fruits and vegetables; 11) Prevention and deodorization of halitosis; 12) Disinfection of instruments used in hospitals; 13) Fungal extermination; 14) Disinfection of water storage tanks, ornamental water tanks, and sprayers. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solutions of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0026] This invention relates to a composite electrolysis method, specifically including the following steps: S1, raw water undergoes primary electrolysis in a first electrolytic cell to form primary electrolyzed water; S2, the primary electrolyzed water enters a second electrolytic cell for secondary electrolysis after electrolysis in the first electrolytic cell for a preset time, and the primary electrolyzed water forms secondary electrolyzed water after electrolysis in the second electrolytic cell for a preset time; S3, the two electrolysis processes in the first and second electrolytic cells increase the electrolysis efficiency, avoid the need for a separate transition container, thereby reducing the size of the electrolysis device. Therefore, even a miniaturized device can achieve the effect of high oxidation potential.

[0027] Of course, the present invention can also further electrolyze the raw water in the first and second electrolyzers for the Nth time (N≥3) through the Nth electrolyzer.

[0028] In step S2, during secondary electrolysis in the second electrolytic cell, the primary electrolyzed water enters the second electrolytic cell by gas-liquid mixing or by pumping in a gas source, which makes the secondary electrolyzed water rich in bubbles. The decrease in water flow rate prolongs the electrolysis time.

[0029] In step S1, a control switch (such as a solenoid valve) is installed at the outlet of the first electrolytic cell to control the electrolysis time of the first electrolytic cell; the opening and closing time of the control switch is controlled by the control panel.

[0030] The raw water is electrolyzed in the first electrolytic cell for 5 to 20 seconds, and the primary electrolyzed water is electrolyzed in the second electrolytic cell for 5 to 20 seconds. The electrolysis interval between the second electrolytic cell and the first electrolytic cell is 1 second, and the electrolysis interval is controlled by a control panel.

[0031] This invention enables on-site preparation and use of raw water during electrolysis. The primary electrolysis is performed in the first electrolysis cell, followed by secondary electrolysis in the second electrolysis cell before exiting through the nozzle. The electrolysis time of the first electrolysis unit is at least 5 seconds, preferably 5-20 seconds, and the second electrolysis time is also controlled between 5 and 20 seconds. With an interval of 1 second, the oxidation potential value at the nozzle is guaranteed.

[0032] The verification of the concentration of active ions generated by water electrolysis is demonstrated by detecting the oxidation potential data. This is because the oxidation products such as HClO, O3, and hydroxyl radicals generated in the electrolysis reaction have oxidation potentials. The influent in this scheme is commercially available mineral water and purified water, so the electrolysis products of this scheme do not contain hypochlorous acid. Secondly, this scheme is ready for immediate use, and the entire electrolysis time is controlled within 10 to 41 seconds. The time for high-concentration ozone to be generated by water electrolysis is 2 to 4 minutes. Therefore, the main component representing the oxidation potential of the products generated in this scheme is hydroxyl radicals.

[0033] When raw water is electrolyzed in the first electrolyzer, a reaction occurs at the electrodes, producing hydrogen and oxygen. The following is a detailed description:

[0034] At the cathode (negative electrode), hydrogen ions in water molecules gain electrons and become hydrogen gas.

[0035] This half of the reaction can be represented as:

[0036] 4H++4e-→2H2↑.

[0037] At the anode (positive electrode), hydroxide ions in water molecules lose electrons. In the reaction that occurs at the anode, water molecules lose hydrogen atoms, and the remaining oxygen atoms combine to form hydroxyl radicals, ozone, and oxygen. This half-reaction can be represented as:

[0038] 4OH-→O2↑+2H2O+4e-.

[0039] Therefore, after electrolysis in the first electrolytic cell, the water in the tank is no longer the original water, but electrolyzed water containing hydrogen, hydroxyl radicals, ozone and oxygen.

[0040] Then, the water is immediately pumped into the second electrolytic cell for electrolysis. Because the electrolyzed water is rich in air bubbles, the water flow rate will decrease due to the water flow rate Q. Therefore, the water flow rate will naturally decrease, which will prolong the electrolysis time and make the electrolysis more complete.

[0041] Electrolysis efficiency is increased by electrolysis in two stages, while avoiding the need for a separate transition container, thereby reducing the size of the electrolysis device. Therefore, even a miniaturized device can achieve the effect of high oxidation potential.

[0042] The anode and cathode of the first electrolytic cell are conductive diamond or metal, which is one of ceramic, titanium, platinum, gold, titanium alloy, nickel, palladium, platinum-ruthenium alloy or stainless steel.

[0043] The anode of the second electrolytic cell is conductive diamond, and the cathode is a metal, which is one of ceramic, titanium, platinum, gold, titanium alloy, nickel, palladium, platinum-ruthenium alloy or stainless steel.

[0044] The first electrolytic cell and the second electrolytic cell are arranged in a horizontal or vertical direction, and a gap is formed between the first electrolytic cell and the second electrolytic cell.

[0045] The line connecting the first electrolytic cell and the second electrolytic cell forms an angle with the horizontal direction, and a gap is formed between the first electrolytic cell and the second electrolytic cell.

[0046] In a first embodiment of the present invention, the first electrolytic cell and the second electrolytic cell are controlled by the same control panel. While the second electrolytic cell is performing secondary electrolysis, the first electrolytic cell continues to electrolyze the raw water.

[0047] In a second embodiment of the present invention, the first electrolytic cell and the second electrolytic cell are controlled by a control panel, and while the second electrolytic cell is performing secondary electrolysis, the first electrolytic cell stops electrolyzing the raw water.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A composite electrolysis method, characterized in that, Includes the following steps: S1. Raw water undergoes primary electrolysis in the first electrolyzer to form primary electrolyzed water; S2. After the primary electrolyzed water has been electrolyzed in the first electrolyzer for a preset time, it enters the second electrolyzer for secondary electrolysis. After the primary electrolyzed water has been electrolyzed in the second electrolyzer for a preset time, it becomes secondary electrolyzed water. S3. The two electrolysis processes, namely the first electrolytic cell and the second electrolytic cell, increase the electrolysis efficiency and avoid the need for a separate transition container.

2. The composite electrolysis method according to claim 1, characterized in that, The raw water is electrolyzed in the first and second electrolyzers, and then further electrolyzed in the Nth electrolyzer.

3. The composite electrolysis method according to claim 1, characterized in that, In step S2, during secondary electrolysis in the second electrolytic cell, the primary electrolyzed water enters the second electrolytic cell by gas-liquid mixing or by pumping in a gas source, which makes the secondary electrolyzed water rich in bubbles. The decrease in water flow rate prolongs the electrolysis time.

4. The composite electrolysis method according to claim 1, characterized in that, In step S1, a control switch is installed at the outlet of the first electrolytic cell to control the electrolysis time of the first electrolytic cell; the opening and closing time of the control switch is controlled by the control panel.

5. The composite electrolysis method according to claim 1, characterized in that, The electrolysis time of the raw water in the first electrolyzer is at least 5 seconds.

6. The composite electrolysis method according to claim 3, characterized in that, The primary electrolyzed water is electrolyzed for 5 to 20 seconds in the second electrolyzer, and the electrolysis interval between the second electrolyzer and the first electrolyzer is 1 second. The electrolysis interval is controlled by a control panel.

7. The composite electrolysis method according to claim 4, characterized in that, The first and second electrolytic cells are controlled by the same control panel. While the second electrolytic cell performs secondary electrolysis, the first electrolytic cell continues to electrolyze the raw water.

8. The composite electrolysis method according to claim 4, characterized in that, The first and second electrolytic cells are controlled by a control panel. While the second electrolytic cell is performing secondary electrolysis, the first electrolytic cell stops electrolyzing the raw water.

9. The composite electrolysis method according to claim 5, characterized in that, The anode and cathode of the first electrolytic cell are conductive diamond or metal, wherein the metal is one of ceramic, titanium, platinum, gold, titanium alloy, nickel, palladium, platinum-ruthenium alloy or stainless steel; the anode of the second electrolytic cell is conductive diamond, and the cathode is metal, wherein the metal is one of ceramic, titanium, platinum, gold, titanium alloy, nickel, palladium, platinum-ruthenium alloy or stainless steel.