Acid-base electrolyzed water generator

Abstract

The present invention discloses an acid-base electrolyzed water generator, which includes a generator body. An electrolytic cell for generating acidic electrolyzed water and alkaline electrolyzed water is provided inside the generator body, and the electrolytic cell adopts a stack type structure. The acid-base electrolyzed water generator of the present invention uses a stack type electrolytic cell. By opening holes and grooves on the stack, an internal flow channel is constructed, and the number of stacks is set as required to achieve multiple electrolyses. The structure of the electrolytic cell is compact and convenient for assembly, greatly reducing the volume of the acid-base electrolyzed water generator compared with the prior art. Moreover, under the condition of unstable external flow rate, the dosing ratio is stabilized, which is beneficial to the popularization and application of the equipment.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrolytic generators, and particularly relates to an acid-base electrolyzed water generator. Background Art

[0002] Under certain conditions, the acidic electrolyzed water and alkaline electrolyzed water generated after electrolysis have special uses respectively. The mechanism for preparing electrolyzed water is called an electrolytic cell; when direct current passes through the electrolytic cell, an oxidation reaction occurs at the interface between the anode and the solution, and a reduction reaction occurs at the interface between the cathode and the solution to produce the required products. Currently, the electrolytic cells used to generate weakly acidic hypochlorous acid disinfectant generally adopt the method of connecting multiple electrolytic containers (such as the electrolytic device disclosed in the patent document CN208104564U) in series using external pipelines. This method of electrolytic cell requires a large installation space, which in turn leads to the generally large volume of existing electrolyzed water generators. In addition, the current electrolyzed water generators also have the problem that the unstable flow rate of tap water leads to unstable dosing ratios. Summary of the Invention

[0003] Aiming at the defects in the prior art, the present invention provides an acid-base electrolyzed water generator, which adopts a stacked-plate type electrolytic cell. By opening holes and grooves on the stacked plates to construct internal flow channels and setting the number of stacked plates as needed, multiple electrolyses are realized. The structure of the electrolytic cell is compact, which is conducive to the miniaturization of the volume of the electrolytic cell and the acid-base electrolyzed water generator.

[0004] The acid-base electrolyzed water generator of the present invention includes a generator body. An electrolytic cell for generating acidic electrolyzed water and alkaline electrolyzed water is provided in the generator body, and the electrolytic cell adopts a stacked-plate type structure; the stacked-plate type structure is composed of a plurality of thin plates with the same outer shape stacked together. By opening cavities with required shapes on different stacked plates, a flow pipeline is constructed inside the overall stacked structure, which has a compact structure and a small volume.

[0005] Further, the electrolytic cell includes a water inlet plate, a water outlet plate, and an electrolytic stack group sandwiched between the water inlet plate and the water outlet plate. The electrolytic stack group includes electrolytic acid-base separation section stacks. The electrolytic acid-base separation section stacks include first cathode positioning plates, first anode positioning plates arranged alternately, and cathode partitions, water separation plates, and anode partitions sandwiched between adjacent first cathode positioning plates and first anode positioning plates. Acidic electrolyzed water outlets and alkaline electrolyzed water outlets are provided at the upper ends of each stack of the electrolytic acid-base separation section stacks; on the stacks of the electrolytic acid-base separation section stacks except for the water separation plates, electrolytic chambers and water flow buffer chambers are arranged vertically and independently; upward water flow chambers communicating with the electrolytic chambers and water flow buffer chambers of the stacks on both sides are provided on each water separation plate; first cathode plates are fixed in the electrolytic chambers of the first cathode positioning plates; first anode plates are fixed in the electrolytic chambers of the first anode positioning plates; the electrolytic chambers of each first cathode positioning plate and the cathode partition are communicated with their respective alkaline electrolyzed water outlets; the electrolytic chambers of each first anode positioning plate and the anode partition are communicated with their respective acidic electrolyzed water outlets; water inlet holes and drain holes are correspondingly provided at the lower ends of the water inlet plate and the water outlet plate corresponding to the water flow buffer chambers; acidic electrolyzed water discharge holes and alkaline electrolyzed water discharge holes are respectively provided at the upper end of the water outlet plate corresponding to the acidic electrolyzed water outlet and the alkaline electrolyzed water outlet; the thicknesses of both the water inlet plate and the water outlet plate are 10 mm, and the thicknesses of the first cathode positioning plate, the water separation plate, and the first anode positioning plate are all 1 mm; the thicknesses of both the cathode partition and the anode partition are 2.7 mm, and 50 anode partitions are provided; the raw material liquid enters the water flow buffer chambers of each stack of the electrolytic acid-base separation section stacks through the water inlet holes of the water inlet plate, releases the water flow impact force, and after being filled, flows into the spaces between the anode and cathode plates through the upward water flow walls of the water separation plates for electrolysis. During electrolysis, chloride ions move towards the anode side, lose electrons on the anode side, and generate chlorine gas. The chlorine gas simultaneously dissolves in water to form hypochlorous acid and hydrochloric acid, and the solution on the anode side shows strong acidity; during electrolysis, water is electrolyzed at the cathode to generate hydrogen gas, and at the same time, hydroxide ions are generated, which combine with sodium ions moving towards the cathode side to form sodium hydroxide, and the solution on the cathode side shows strong alkalinity as a whole; the acidic and alkaline liquids on both sides flow upward under the push of the stable upward water flow at the lower part, and are respectively blocked by the water separation plates in the middle and flow into the acidic electrolyzed water outlet and the alkaline electrolyzed water outlet on both sides to be collected and discharged.

[0006] Further, the electrolytic stack group further includes an acidic electrolyzed water flow-through stack and an acidic electrolyzed water secondary electrolysis stack; the electrolytic acid-base separation stack, the acidic electrolyzed water flow-through stack, and the acidic electrolyzed water secondary electrolysis stack are arranged in the direction from the water inlet plate to the water outlet plate. The acidic electrolyzed water flow-through stack includes a middle water outlet plate, a middle partition plate, and a middle water inlet plate arranged from the inlet to the outlet along the water flow direction. The upper ends of the middle water outlet plate and the middle partition plate are provided with an acidic electrolyzed water outlet and a basic electrolyzed water outlet; the upper end of the middle water inlet plate is provided with a basic electrolyzed water outlet, and the lower end is provided with a water flow buffer cavity; the middle partition plate is provided with an acidic electrolyzed water flow cavity communicated with its acidic electrolyzed water outlet; the acidic electrolyzed water secondary electrolysis stack includes alternately arranged second cathode positioning plates, second anode positioning plates, and secondary partition plates sandwiched between adjacent second cathode positioning plates and second anode positioning plates. The upper ends of each stack of the acidic electrolyzed water secondary electrolysis stack are provided with an acidic electrolyzed water outlet and a basic electrolyzed water outlet; each of the second cathode positioning plates and the second anode positioning plates is provided with an electrolysis cavity and a water flow buffer cavity arranged vertically and independently; a second cathode sheet is fixed in the electrolysis cavity of the second cathode positioning plate; a second anode sheet is fixed in the electrolysis cavity of the second anode positioning plate; each secondary partition plate is provided with a communication cavity communicating the electrolysis cavity and the water flow buffer cavity on both sides of the stack. The electrolysis cavities of each second cathode positioning plate and the second anode positioning plate and the communication cavity of the secondary partition plate are respectively communicated with their acidic electrolyzed water outlets; the basic electrolyzed water outlets in the acidic electrolyzed water flow-through stack and the acidic electrolyzed water secondary electrolysis stack are connected to the basic electrolyzed water outlet of the electrolytic acid-base separation stack to form an independent basic electrolyzed water discharge channel, and the basic electrolyzed water generated in the electrolytic acid-base separation section is directly output, while the acidic electrolyzed water generated in the electrolytic acid-base separation section is subjected to secondary electrolysis. The overall design is a stack type. By opening holes and grooves on the stack, the internal flow channels of the acidic electrolyzed water and the basic electrolyzed water are constructed, and the structure is compact. Compared with the pipeline connection structure, the volume can be reduced; the excess undissolved chlorine is discharged downward with the acidic electrolyzed water into the acidic electrolyzed water flow-through section. The chlorine escaping upward is completely sealed and stored in the upper part of this flow-through section and continuously dissolves in the aqueous solution to form hypochlorous acid molecules. A small amount of chlorine continues to flow into the secondary electrolysis section with the acidic electrolyzed water and reacts with the sodium hydroxide generated during the secondary electrolysis of the acidic electrolyzed water to form sodium chloride and dissolve, and at the same time, slightly acidic electrolyzed water is obtained and discharged for use.

[0007] Furthermore, positioning notches for fixing the corresponding cathode plates and anode plates are provided on the inner sides of the first cathode positioning plate, the first anode positioning plate, the second cathode positioning plate and the second anode positioning plate. Breaks for allowing the corresponding cathode plates and anode plates to extend to the outside are also provided on the edges of the first cathode positioning plate, the first anode positioning plate, the second cathode positioning plate and the second anode positioning plate. The water inlet hole, the drain hole, the acidic electrolyzed water discharge hole and the alkaline electrolyzed water discharge hole are all provided with internal threads, and first stainless steel support plates are provided on the outer sides of the water inlet plate. A second stainless steel support plate is provided on the outer side of the water outlet plate. A plurality of pull bolts are connected between the two stainless steel support plates, and each pull bolt passes through the water inlet plate, the water outlet plate and the electrolytic stack group and is fastened together. The joints of all components are filled with epoxy resin for sealing. After the electrode positioning plates are stacked with the laminated sheets on both sides, the two ends of the electrode sheets are completely clamped and fixed, effectively preventing the inter-electrode short circuit accident caused by the deformation of the electrode sheets. Furthermore, the distance between the anode and cathode plates can be greatly shortened, the electrolysis voltage can be reduced, and the electrolysis energy consumption can be reduced.

[0008] Furthermore, the generator body is also provided with a box body and a PLC control system, a liquid inlet system, a liquid discharge system, a liquid storage system and a power supply system installed in the box body; the electrolytic cell is fixed inside the box body; the liquid inlet system is connected to the water inlet hole of the electrolytic cell for injecting electrolyte; the drain hole of the electrolytic cell is connected to the liquid discharge system for discharging electrolyte; the acidic electrolyzed water and alkaline electrolyzed water generated by the electrolytic cell are output to the liquid storage system; the electrolytic cell is powered by the power supply system; the liquid inlet system, the liquid discharge system and the power supply system are automatically controlled by the PLC control system.

[0009] Furthermore, the liquid inlet system includes a tap water filter, a flow meter, a first solenoid valve, a hydraulic proportional chemical dosing pump and a secondary filter connected in sequence; the hydraulic proportional chemical dosing pump uses the pressure of tap water to suck the raw material liquid and mix it with tap water according to a set ratio, and the water outlet hole of the hydraulic proportional chemical dosing pump is connected to the water inlet hole of the stacked sheet acid-base separation electrolytic cell through the secondary filter.

[0010] Furthermore, the liquid discharge system includes a liquid discharge pipeline and a second solenoid valve for controlling the on-off of the liquid discharge pipeline; the liquid discharge pipeline is connected to the drain hole of the stacked sheet acid-base separation electrolytic cell; the liquid storage system includes an acidic water storage system and an alkaline water storage system, and a non-contact water level sensor and a water quality on-line detection device are connected to the acidic and alkaline water storage systems. The non-contact water level sensor and the water quality on-line detection device are both connected to the PLC control system.

[0011] The beneficial effects of the present invention are as follows: The acid-base electrolyzed water generator of the present invention adopts a stacked sheet type electrolytic cell. By opening holes and grooves on the stacked sheets to construct an internal flow channel and setting the number of stacked sheets according to needs, multiple electrolyses are realized. The structure of the electrolytic cell is compact and easy to assemble, which is beneficial to the miniaturization of the volume of the electrolytic cell and the acid-base electrolyzed water generator using the electrolytic cell, and is conducive to popularization and application. Brief Description of the Drawings

[0012] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0013] Figure 1 is a schematic structural diagram of the present invention;

[0014] Figure 2 is Figure 1 the left view of;

[0015] Figure 3 is a manufacturing flowchart of the present invention;

[0016] Figure 4 is a schematic structural diagram of the electrolytic cell;

[0017] Figure 5 is a schematic structural diagram of the first stainless steel support plate;

[0018] Figure 6 is a schematic structural diagram of the water inlet plate;

[0019] Figure 7 is a schematic structural diagram of the first cathode positioning plate;

[0020] Figure 8 is a schematic structural diagram of the cathode partition plate;

[0021] Figure 9 is a schematic structural diagram of the water distribution plate;

[0022] Figure 10 is a schematic structural diagram of the anode partition plate;

[0023] Figure 11 is a schematic structural diagram of the first anode positioning plate;

[0024] Figure 12 is a schematic structural diagram of the middle section water outlet plate;

[0025] Figure 13 is a schematic structural diagram of the middle section partition plate;

[0026] Figure 14 is a schematic structural diagram of the middle water inlet plate;

[0027] Figure 15 is a schematic structural diagram of the second cathode positioning plate;

[0028] Figure 16 is a schematic structural diagram of the secondary partition plate;

[0029] Figure 17 Schematic diagram of the second anode positioning plate structure;

[0030] Figure 18 Schematic diagram of the water outlet plate structure;

[0031] Figure 19 Schematic diagram of the second stainless steel support plate structure. Specific implementation manners

[0032] Hereinafter, embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and thus are only examples and cannot be used to limit the protection scope of the present invention.

[0033] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meanings understood by those skilled in the art to which the present invention belongs.

[0034] As Figure 1-19 shown: The acid-base electrolyzed water generator of this embodiment includes a generator body. An electrolytic cell 17 for generating acidic electrolyzed water and alkaline electrolyzed water is provided in the generator body. The electrolytic cell 17 adopts a stacked plate structure; the stacked plate structure is composed of a plurality of thin plates with the same outer shape stacked together. By opening cavities with required shapes on different stacked plates, flow pipelines are constructed inside the overall stacked structure. It has a compact structure, is convenient to assemble, and has a small volume.

[0035] In this embodiment, the electrolytic cell 17 includes a water inlet plate, a water outlet plate, and an electrolytic stack sandwiched between the water inlet plate and the water outlet plate. The electrolytic stack includes electrolytic acid-base separation section laminations. The electrolytic acid-base separation section laminations include first cathode positioning plates, first anode positioning plates arranged alternately, and cathode separators, water separation plates, and anode separators sandwiched between adjacent first cathode positioning plates and first anode positioning plates. Acidic electrolyzed water outlets 4 and alkaline electrolyzed water outlets 5 are provided at the upper ends of the respective laminations of the electrolytic acid-base separation section laminations; on the laminations of the electrolytic acid-base separation section laminations except for the water separation plates, electrolytic chambers 3 and water flow buffer chambers 2 are arranged vertically and independently; upward water flow chambers 7 communicating the electrolytic chambers 3 and the water flow buffer chambers 2 of the laminations on both sides are provided on each water separation plate; a first cathode plate 6 is fixed in the electrolytic chamber 3 of the first cathode positioning plate; a first anode plate 8 is fixed in the electrolytic chamber 3 of the first anode positioning plate; the electrolytic chambers 3 of each first cathode positioning plate and the cathode separator communicate with their respective alkaline electrolyzed water outlets 5; the electrolytic chambers 3 of each first anode positioning plate and the anode separator communicate with their respective acidic electrolyzed water outlets 4; water inlet holes 1 and drain holes 13 are correspondingly provided at the lower ends of the water inlet plate and the water outlet plate corresponding to the water flow buffer chambers 2; acidic electrolyzed water discharge holes 14 and alkaline electrolyzed water discharge holes 15 are respectively provided at the upper end of the water outlet plate corresponding to the acidic electrolyzed water outlet 4 and the alkaline electrolyzed water outlet 5; the electrolyte enters the water flow buffer chambers 2 of the respective laminations of the electrolytic acid-base separation section laminations through the water inlet holes 1 of the water inlet plate, releases the water flow impact force, and after being filled, flows into the spaces between the respective anode and cathode plates through the upward water flow walls of the water separation plates for electrolysis. During electrolysis, chloride ions move towards the anode side, lose electrons on the anode side, and generate chlorine gas. The chlorine gas simultaneously dissolves in water to form hypochlorous acid and hydrochloric acid, and the solution on the anode side is strongly acidic; during electrolysis, water is electrolyzed at the cathode to generate hydrogen gas, and at the same time, hydroxide ions are generated, which combine with sodium ions moving towards the cathode side to form sodium hydroxide, and the solution on the cathode side is overall strongly alkaline; the acidic and alkaline liquids on both sides flow upward under the push of the stable upward water flow at the lower part, and are respectively blocked by the water separation plates in the middle and flow into the acidic electrolyzed water outlet 4 and the alkaline electrolyzed water outlet 5 for collection and discharge.

[0036] In this embodiment, the electrolytic stack group further includes an acidic electrolyzed water flow-through stack and an acidic electrolyzed water secondary electrolysis stack; the electrolytic acid-base separation stack, the acidic electrolyzed water flow-through stack, and the acidic electrolyzed water secondary electrolysis stack are arranged in the direction from the water inlet plate to the water outlet plate. The acidic electrolyzed water flow-through stack includes a middle water outlet plate, a middle partition plate, and a middle water inlet plate arranged from the inlet to the outlet along the water flow direction. An acidic electrolyzed water outlet 4 and a basic electrolyzed water outlet 5 are provided at the upper ends of the middle water outlet plate and the middle partition plate; a basic electrolyzed water outlet 5 is provided at the upper end of the middle water inlet plate, and a water flow buffer chamber 2 is provided at the lower end; an acidic electrolyzed water flow-through chamber 9 communicating with its acidic electrolyzed water outlet 4 is provided on the middle partition plate; the acidic electrolyzed water secondary electrolysis stack includes alternately arranged second cathode positioning plates, second anode positioning plates, and secondary partition plates sandwiched between adjacent second cathode positioning plates and second anode positioning plates. Acidic electrolyzed water outlets 4 and basic electrolyzed water outlets 5 are provided at the upper ends of each stack of the acidic electrolyzed water secondary electrolysis stack; each second cathode positioning plate and second anode positioning plate are provided with electrolysis chambers 3 and water flow buffer chambers 2 arranged vertically and independently; a second cathode sheet 10 is fixed in the electrolysis chamber 3 of the second cathode positioning plate; a second anode sheet 11 is fixed in the electrolysis chamber 3 of the second anode positioning plate; each secondary partition plate is provided with a communication chamber 12 communicating the electrolysis chambers 3 and the water flow buffer chambers 2 on both sides of the stack. The electrolysis chambers 3 of each second cathode positioning plate and second anode positioning plate and the communication chambers 12 of the secondary partition plates are respectively communicated with their acidic electrolyzed water outlets 4; the basic electrolyzed water outlets 5 in the acidic electrolyzed water flow-through stack and the acidic electrolyzed water secondary electrolysis stack are connected to the basic electrolyzed water outlet 5 of the electrolytic acid-base separation stack to form an independent basic electrolyzed water discharge channel, directly outputting the basic electrolyzed water generated in the electrolytic acid-base separation section, while the acidic electrolyzed water generated in the electrolytic acid-base separation section is subjected to secondary electrolysis. The overall design is a stack type. By opening holes and grooves on the stack, the internal flow channels of acidic electrolyzed water and basic electrolyzed water are constructed, with a compact structure. The stack type structure is convenient for assembly; the excess undissolved chlorine is discharged downward with the acidic electrolyzed water into the acidic electrolyzed water flow-through section. The chlorine escaping upward is completely sealed and preserved in the upper part of this flow-through section and continuously dissolves in the aqueous solution to form hypochlorous acid molecules. A small amount of chlorine continues to flow into the secondary electrolysis section with the acidic electrolyzed water and reacts with the sodium hydroxide generated during the secondary electrolysis of the acidic electrolyzed water to form sodium chloride and dissolve, while obtaining slightly acidic electrolyzed water for discharge and use.

[0037] In this embodiment, positioning notches for fixing the corresponding cathode plates and anode plates are provided on the inner sides of the first cathode positioning plate, the first anode positioning plate, the second cathode positioning plate, and the second anode positioning plate. Break openings for allowing the corresponding cathode plates and anode plates to extend to the outside are further provided at the edges of the first cathode positioning plate, the first anode positioning plate, the second cathode positioning plate, and the second anode positioning plate. Internal threads are provided in the water inlet hole 1, the drain hole 13, the acidic electrolyzed water discharge hole 14, and the alkaline electrolyzed water discharge hole 15. First stainless steel support plates are provided on the outer sides of the water inlet plate. A second stainless steel support plate is provided on the outer side of the water outlet plate. A plurality of pull bolts are connected between the two stainless steel support plates, and each pull bolt passes through the water inlet plate, the water outlet plate, and the electrolytic stack group and is fastened together. The joints of all components are filled with epoxy resin for sealing. After the electrode positioning plates are stacked with the stacked sheets on both sides, the two ends of the electrode plates are completely clamped and fixed, effectively preventing the inter-electrode short circuit accident caused by the deformation of the electrode plates. Furthermore, the distance between the anode and cathode plates can be greatly shortened, the electrolysis voltage can be reduced, and the electrolysis energy consumption can be reduced.

[0038] In this embodiment, the generator body further includes a box body 21 and a PLC control system, a liquid inlet system, a liquid discharge system, a liquid storage system, and a power supply system installed in the box body 21. The electrolytic cell 17 is fixed inside the box body 21. The liquid inlet system is connected to the water inlet hole 1 of the electrolytic cell 17 for injecting electrolyte. The drain hole 13 of the electrolytic cell 17 is connected to the liquid discharge system for discharging electrolyte. The acidic electrolyzed water and alkaline electrolyzed water generated by the electrolytic cell 17 are output to the liquid storage system. The electrolytic cell 17 is powered by the power supply system. The liquid inlet system, the liquid discharge system, and the power supply system are controlled by the PLC control system. The box body 21 is provided with a front upper door 28, a front lower door 29, and a rear door 27.

[0039] In this embodiment, the liquid inlet system includes a tap water filter 20, a flow meter 22, a first solenoid valve 19, a hydraulic proportional chemical dosing pump 18, and a secondary filter 16 connected in sequence. The hydraulic proportional chemical dosing pump 18 uses the pressure of tap water to suck the raw material liquid and mix it with tap water in a set ratio to form electrolyte. The water outlet hole of the hydraulic proportional chemical dosing pump 18 is connected to the water inlet hole 1 of the stacked sheet type acid-base separation electrolytic cell 17 through the secondary filter 16. The secondary filter 16 filters the impurities in the electrolyte. The raw material liquid (such as dilute brine) is stored in the raw material liquid storage tank 25. The flow meter 22 and the first solenoid valve 19 are connected to the PLC control system. The flow meter 22 is a remote transmission flow meter and transmits the tap water flow data to the PLC control system.

[0040] In this embodiment, the liquid drainage system includes a liquid drainage pipeline and a second solenoid valve for controlling the on-off of the liquid drainage pipeline; the liquid drainage pipeline is connected to the drainage hole 13 of the stacked acid-base separation electrolytic cell and is used to open the second solenoid valve to drain the electrolyte in the electrolytic cell after shutdown; the liquid storage system includes an acidic water storage system 23 and an alkaline water storage system 24. A non-contact water level sensor and an on-line water quality detection device (such as pH value detection, ORP value detection, etc.) are connected to the acidic and alkaline water storage systems. The non-contact water level sensor and the on-line water quality detection device are both connected to the PLC control system.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. An acid-base electrolyzed water generator, characterized in that: It includes a generator body, and an electrolytic cell for generating acidic electrolyzed water and alkaline electrolyzed water is provided inside the generator body, and the electrolytic cell adopts a stack structure; the stack structure is composed of a plurality of sheets with the same outer shape stacked together; The electrolytic cell includes a water inlet plate, a water outlet plate, and an electrolytic stack group sandwiched between the water inlet plate and the water outlet plate. The electrolytic stack group includes electrolytic acid-base separation section stacks. The electrolytic acid-base separation section stacks include first cathode positioning plates, first anode positioning plates arranged alternately, and cathode partitions, water distribution plates, and anode partitions sandwiched between adjacent first cathode positioning plates and first anode positioning plates. Acidic electrolyzed water outlets and alkaline electrolyzed water outlets are provided at the upper ends of each stack of the electrolytic acid-base separation section stacks; on the stacks of the electrolytic acid-base separation section except the water distribution plates, electrolytic chambers and water flow buffer chambers are arranged vertically and independently; upward water flow chambers for communicating the electrolytic chambers and water flow buffer chambers of the stacks on both sides thereof are provided on each water distribution plate; first cathode plates are fixed in the electrolytic chambers of the first cathode positioning plates; first anode plates are fixed in the electrolytic chambers of the first anode positioning plates; the electrolytic chambers of each first cathode positioning plate and the cathode partition are communicated with their respective alkaline electrolyzed water outlets; the electrolytic chambers of each first anode positioning plate and the anode partition are communicated with their respective acidic electrolyzed water outlets; water inlet holes and drain holes are correspondingly provided at the lower ends of the water inlet plate and the water outlet plate corresponding to the water flow buffer chambers; acidic electrolyzed water discharge holes and alkaline electrolyzed water discharge holes are respectively provided at the upper end of the water outlet plate corresponding to the acidic electrolyzed water outlet and the alkaline electrolyzed water outlet; The electrolytic stack group further includes acidic electrolyzed water circulation section stacks and acidic electrolyzed water secondary electrolysis section stacks; the electrolytic acid-base separation section stacks, the acidic electrolyzed water circulation section stacks, and the acidic electrolyzed water secondary electrolysis section stacks are arranged in the direction from the water inlet plate to the water outlet plate. The acidic electrolyzed water circulation section stacks include a middle water outlet plate, a middle partition, and a middle water inlet plate arranged in the water flow direction from the inlet to the outlet. Acidic electrolyzed water outlets and alkaline electrolyzed water outlets are provided at the upper ends of the middle water outlet plate and the middle partition; an alkaline electrolyzed water outlet is provided at the upper end of the middle water inlet plate, and a water flow buffer chamber is provided at the lower end; an acidic electrolyzed water circulation chamber communicated with its acidic electrolyzed water outlet is provided on the middle partition; the acidic electrolyzed water secondary electrolysis section stacks include second cathode positioning plates, second anode positioning plates arranged alternately, and secondary partitions sandwiched between adjacent second cathode positioning plates and second anode positioning plates. Acidic electrolyzed water outlets and alkaline electrolyzed water outlets are provided at the upper ends of each stack of the acidic electrolyzed water secondary electrolysis section stacks; electrolytic chambers and water flow buffer chambers are arranged vertically and independently on each second cathode positioning plate and second anode positioning plate; second cathode plates are fixed in the electrolytic chambers of the second cathode positioning plates; second anode plates are fixed in the electrolytic chambers of the second anode positioning plates; communication chambers for communicating the electrolytic chambers and water flow buffer chambers of the stacks on both sides thereof are provided on each secondary partition, and the electrolytic chambers of each second cathode positioning plate and second anode positioning plate and the communication chambers of the secondary partitions are respectively communicated with their respective acidic electrolyzed water outlets.

2. The acid-base electrolyzed water generator according to claim 1, wherein: The inner sides of the first cathode positioning plate, the first anode positioning plate, the second cathode positioning plate and the second anode positioning plate are provided with positioning notches for fixing the corresponding cathode plates and anode plates, and the edges of the first cathode positioning plate, the first anode positioning plate, the second cathode positioning plate and the second anode positioning plate are also provided with break openings for the corresponding cathode plates and anode plates to extend to the outside; each outer side of the water inlet plate is provided with a first stainless steel support plate; the outer side of the water outlet plate is provided with a second stainless steel support plate; a plurality of pull bolts are connected between the two stainless steel support plates, and each pull bolt passes through the water inlet plate, the water outlet plate and the electrolytic stack assembly and is fastened together; the joints of all components are filled with epoxy resin for sealing.

3. The acid-base electrolyzed water generator according to claim 1, characterized in that: The generator body is further provided with a box body and a PLC control system, a liquid inlet system, a liquid discharge system, a liquid storage system and a power supply system installed in the box body; the electrolytic cell is fixed inside the box body; the liquid inlet system is connected to the water inlet hole of the electrolytic cell for injecting electrolyte; the drain hole of the electrolytic cell is connected to the liquid discharge system for discharging electrolyte; the acidic electrolyzed water and alkaline electrolyzed water generated by the electrolytic cell are output to the liquid storage system; the electrolytic cell is powered by the power supply system; the liquid inlet system, the liquid discharge system and the power supply system are automatically controlled by the PLC control system.

4. The acid-base electrolyzed water generator according to claim 3, characterized in that: The liquid inlet system includes a tap water filter, a flow meter, a first solenoid valve, a hydraulic proportional chemical dosing pump and a secondary filter connected in sequence; the hydraulic proportional chemical dosing pump uses the pressure of tap water to suck the raw material liquid and mix it with tap water in a set ratio, and the water outlet hole of the hydraulic proportional chemical dosing pump is connected to the water inlet hole of the laminated acid-base separation electrolytic cell through the secondary filter.

5. The acid-base electrolyzed water generator according to claim 3, wherein: The liquid discharge system includes a liquid discharge pipeline and a second solenoid valve for controlling the on-off of the liquid discharge pipeline; the liquid discharge pipeline is connected to the drain hole of the laminated acid-base separation electrolytic cell; the liquid storage system includes an acidic water storage system and an alkaline water storage system, and a non-contact water level sensor and an online water quality detection device are connected to the acidic and alkaline water storage systems, and the non-contact water level sensor and the online water quality detection device are both connected to the PLC control system.

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