Electrolytic water making machine

Abstract

The invention relates to the field of electrolytic water production machines, in particular to an electrolytic water production machine which comprises an internal water purification system, a hydrogen production system, a hydrogen mixing system and a water taking system. The internal water purification system feeds wastewater into the wastewater tank and feeds purified water into the purified water tank; the pure water tank is also connected with a Schumann wave device; when water in the pure water tank is in a static state, the Schumann wave device intermittently sends Schumann waves to the pure water tank; the hydrogen mixing system comprises a hydrogen mixing pump and an ultrasonic atomization hydrogen mixing device, an inlet of the hydrogen mixing pump is connected with the hydrogen production system and the pure water tank and used for receiving hydrogen and water respectively, and an outlet of the hydrogen mixing pump is connected with the ultrasonic atomization hydrogen mixing device. The electrolytic water making machine is high in hydrogen content and stable in water outlet, and hydrogen-rich water with specific functions can be made by calling the functional filter element according to user requirements.

Description

Technical Field

[0001] The invention relates to the field of electrolytic water making machines, and in particular to an electrolytic water making machine. Background Art

[0002] Hydrogen has a very low solubility in water and is difficult to preserve. How to dissolve as much hydrogen as possible in water and preserve it well has become a technical problem in measuring hydrogen-rich water. Patent No. CN117623529A, a hydrogen-rich water on-site water production system, mainly increases hydrogen solubility by making full use of the water pump outlet pressure, and Patent No. CN113880216A, a hydrogen-rich water preparation system, mainly relies on a nanobubble generator to increase hydrogen solubility; but after using these methods, the solubility of hydrogen in water is still limited.

[0003] At present, there are four main methods for preparing hydrogen-rich water. The first is hydrogen water stick, also known as hydrogen water stick, which uses magnesium and water to react to produce hydrogen. The second is electrolytic hydrogen-rich water machine, which uses the method of electrolyzing water to produce hydrogen. The third is solid hydrogen-rich water health products. At present, this kind of product is mainly introduced from Japan, and negative hydrogen ion capsules are one of them. The fourth is bottled or bagged hydrogen-rich water. This finished hydrogen-rich water is made by dissolving high-purity hydrogen in pure water or other mineral water through a special process, and then sealing it in a container. The four technologies have their own characteristics. At present, due to different production processes, the hydrogen content in water is also different. The concentration of hydrogen in water directly affects the quality of hydrogen-rich water. Among them, in the electrolytic water machine that currently uses electrolysis of water to produce hydrogen, the oxygen produced is not specially treated, and it escapes freely inside the electrolytic water machine, posing a safety hazard. At present, the electrolytic water machine that uses electrolysis of water to produce hydrogen on the market, in order to ensure the water quality of electrolyzed water, all allow users to add pure water to the electrolytic water tank by themselves, which causes inconvenience to users.

[0004] In some electrolytic water makers, functional filters are added so that the water produced has functions such as weak alkaline water and mineralized water. However, the addition of multiple functional filters will inevitably increase the size of the entire electrolytic water maker. How to arrange the pipelines so as to minimize the volume while retaining these functions is also a problem that needs to be solved.

[0005] At present, there will inevitably be water stored in the water outlet pipe of the electrolytic water maker. If this part of the water is not released for a long time, hydrogen will be precipitated, resulting in a decrease in the hydrogen content of the released water. At the same time, due to the presence of gas, the water flow will also be unstable. Summary of the invention

[0006] In view of the above problems, the present invention proposes an electrolytic water making machine, which adopts the following technical solutions:

[0007] The present invention provides an electrolytic water making machine, comprising an internal water purification system, a hydrogen making system, a hydrogen mixing system, and a water taking system;

[0008] The internal water purification system includes a wastewater tank, a water purification device, and a pure water tank. The inlet of the water purification device is used to receive raw water to be treated, the wastewater outlet of the water purification device is connected to the wastewater tank, and the purified water outlet of the water purification device is connected to the pure water tank; the pure water tank is also connected to a Schumann wave device for emitting Schumann waves into the pure water tank; when the water in the pure water tank is in a static state, the Schumann wave device intermittently emits Schumann waves into the pure water tank;

[0009] The hydrogen production system is used to generate hydrogen by electrolyzing water;

[0010] The hydrogen mixing system includes a hydrogen mixing pump and an ultrasonic atomizing hydrogen mixing device, wherein the inlet of the hydrogen mixing pump is connected to the hydrogen production system and the pure water tank, respectively for receiving hydrogen and water, and the outlet of the hydrogen mixing pump is connected to the ultrasonic atomizing hydrogen mixing device;

[0011] The water intake system includes a check valve and a water-gas separator. The inlet of the check valve is connected to the outlet of the ultrasonic atomization hydrogen mixing device, and the outlet of the check valve is connected to the inlet of the water-gas separator. The outlet of the water-gas separator provides the separated water to the user through the water outlet.

[0012] Furthermore, the frequency of the Schumann wave is 7.83 Hz.

[0013] Furthermore, the hydrogen production system includes a PEM electrolyzer, an electrolytic water tank, and a resin filter element, wherein the inlet of the resin filter element is connected to the water outlet of the water purification device, and a water quality detector and a solenoid valve are provided on the pipe at the outlet of the resin filter element. The solenoid valve at the outlet of the resin filter element controls the water at the outlet of the resin filter element to be discharged into the electrolytic water tank or the waste water tank. When the water quality detector at the outlet of the resin filter element detects that the water quality does not meet the standard, the solenoid valve controls the water at the outlet of the resin filter element to be discharged into the waste water tank; the electrolytic water tank is connected to the PEM electrolyzer to supply water to the PEM electrolyzer, and the PEM electrolyzer is used to electrolyze water to produce hydrogen;

[0014] The oxygen generated by the PEM electrolyzer is discharged to the outside of the electrolytic water maker through a special O2 output pipeline.

[0015] Furthermore, there are two channels between the check valve outlet and the water-gas separator inlet, namely a direct connection channel and a heating channel. A heater is provided in the heating channel for heating water.

[0016] Furthermore, the inlet pipe of the water-gas separator is also connected to the inlet of the hydrogen mixing pump; when the electrolytic water maker receives a water output command from the user and the preset time has passed since the last water output, the inlet pipe of the water-gas separator is connected to the inlet of the hydrogen mixing pump through the solenoid valve and isolated from the inlet of the water-gas separator, and circulation is started to re-mix hydrogen. After re-mixing hydrogen, the inlet pipe of the water-gas separator is isolated from the inlet of the hydrogen mixing pump through the solenoid valve and connected to the inlet of the water-gas separator to supply water to the user.

[0017] Further, it also includes a combined filter element system;

[0018] The inlet of the combined filter system is connected to the pure water tank, and the outlet of the combined filter system is connected to the hydrogen mixing pump; the pure water tank and the hydrogen mixing pump are controlled by an electromagnetic valve to switch between two working conditions: direct connection and indirect connection through the combined filter system.

[0019] Furthermore, the outlet of the combined filter element system is also connected to the wastewater tank, and the outlet of the combined filter element system is connected to one of the hydrogen mixing pump or the wastewater tank through the control of a solenoid valve.

[0020] Furthermore, the combined filter element system includes a multi-way connector, a Y-type connector and more than one functional filter element; the multi-way connector has one inlet and multiple outlets, the inlet of the multi-way connector is connected to the pure water tank, each outlet of the multi-way connector is connected to the inlet of a Y-type connector, the two outlets of each Y-type connector are respectively connected to a functional filter element, and the Y-type connector controls its inlet to be connected to 0, 1 or 2 outlets through a solenoid valve.

[0021] Furthermore, the functional filter element includes one or more of a weak base filter element, a mineralized filter element, a selenium-rich filter element, and a strontium-rich filter element.

[0022] Furthermore, the ultrasonic atomization hydrogen mixing device comprises a hydrogen mixer body, with a water inlet and a water outlet at both ends of the hydrogen mixer body, and an ultrasonic device is installed in the hydrogen mixer body.

[0023] Furthermore, the water inlet of the hydrogen mixer body is an inclined ladder water inlet, so that the water entering from the water inlet is ejected toward the inner wall of the hydrogen mixer body. The front section of the water outlet of the hydrogen mixer body is a tapered pipe along the water flow direction.

[0024] Furthermore, the ultrasonic frequency of the ultrasonic device is between 2.2MHz and 2.4MHz, and the intensity of the ultrasonic wave is 0.15W / cm 2 ~0.22W / cm 2 .

[0025] Furthermore, a water quality detector is provided on the pipe between the purified water outlet of the water purification device and the pure water tank for detecting the water quality.

[0026] Beneficial effects:

[0027] 1. The present invention combines Schumann waves with ultrasound waves. Low-frequency Schumann wave pretreatment reduces the energy input required for ultrasound waves. The two act in a step-by-step manner in time and space to inhibit the recombination of molecular clusters and stably generate small molecule water, which greatly improves the dissolution effect of hydrogen in water. At the same time, the water inlet of the ultrasonic atomization hydrogen mixing device adopts an inclined ladder water inlet, so that the water entering from the water inlet is ejected toward the inner wall of the hydrogen mixer body, which enhances the atomization effect.

[0028] 2. The hydrogen production system uses a PEM electrolyzer, which is safer and more reliable than other water electrolysis systems. A special exhaust pipe is configured for the generated oxygen to discharge the oxygen to the outside of the water electrolysis machine, eliminating potential risks. The electrolyzed water used by the PEM electrolyzer is provided by the inside of the water electrolysis machine, and users do not need to add pure water to the electrolysis water tank by themselves, which is convenient for users.

[0029] 3. A combination filter element is installed in the electrolytic water machine, and through the cooperation of multi-way connectors and Y-type connectors, the pipeline of the combination filter element is made more compact, which is convenient for reducing the overall volume; at the same time, a pipeline connected to the wastewater tank is set at the outlet of the combination filter element to facilitate the flushing of the designated functional filter element in the combination filter element.

[0030] 4. In the water intake system, a bypass of the hydrogen pump inlet is set at the front end of the water-gas separator inlet. When water is not taken for a long time, it can be recirculated and mixed with hydrogen, solving the problem of reduced hydrogen content in the water in the pipeline after a long period of no water intake. At the same time, it also solves the problem of complex gas-liquid two-phase flow if the water in the pipeline is used immediately after hydrogen is precipitated due to long-term non-use, resulting in the water outlet speed being fast and slow, and the water flow splashing when taking water.

[0031] The hydrogen-rich water machine of the present invention can achieve a hydrogen concentration of 5500+ppb. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a system diagram of an electrolytic water making machine in an embodiment of the present invention;

[0033] Figure 2 A three-dimensional structural diagram of an ultrasonic hydrogen mixing device in an embodiment of the present invention;

[0034] Figure 3 It is a front view of an ultrasonic hydrogen mixing device in an embodiment of the present invention;

[0035] Figure 4 For along Figure 3 Sectional view along line AA;

[0036] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0037] Figure numerals: 1-water inlet, 2-water outlet, 3-ultrasonic device, 4-sealing ring, 5-inlet end cover, 6-outlet end cover, 7-hydrogen mixer body. DETAILED DESCRIPTION

[0038] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] like Figures 1 to 5 As shown, an electrolytic water maker includes an internal water purification system, a combined filter system, a hydrogen production system, a hydrogen mixing system, and a water intake system; a water pump that provides power in the electrolytic water maker is set as needed; how to set the water pump as needed does not require creative labor and is no longer described in this embodiment.

[0040] Among them, the internal water purification system includes a raw water tank, a waste water tank, a water purification device, and a pure water tank. The inlet of the water purification device is connected to the raw water tank to receive the raw water to be treated. The raw water is generally tap water. The inlet of the water purification device can also be directly connected to the tap water pipe to directly receive tap water; the waste water outlet of the water purification device is connected to the waste water tank, and the clean water outlet of the water purification device is connected to the pure water tank; in this embodiment, the water purification device includes filter elements such as composite filter elements, RO membrane filter elements, and resin filter elements, which belong to the prior art in this field, so the water purification device The internal structure is not described here; a water quality detector is provided on the pipe between the water outlet of the water purification device and the pure water tank for detecting water quality, and the water quality detector includes TDS detection; a Schumann wave device is also connected to the pure water tank for emitting Schumann waves into the pure water tank; when the water in the pure water tank is in a static state, the Schumann wave device intermittently emits Schumann waves into the pure water tank; when the water inside the pure water tank is in a static state, it means that the electrolytic water maker is not working, that is, the water purification system, hydrogen production system, and heating system are not working, so no resonance interference will be generated. The frequency of the Schumann wave is 7.83HZ. When the Schumann wave frequency reaches the critical point of 7.83HZ, the water in the magnetic field is in the most active state. At this time, the physiological activity of water is the strongest. After the 7.83HZ Schumann wave resonance, the hydrogen bond form of water molecules in the magnetic field changes from 104.5° to 114.5°, which promotes the natural stretching of the water molecule structure and transforms the polymerized macromolecular structure into a linear structure to obtain small molecule water that is beneficial to human health. At this time, water and hydrogen can be firmly combined, making sufficient preparations for obtaining stable, high-hydrogen-rich water.

[0041] The hydrogen production system is used to produce hydrogen, specifically an electrolytic water system. In this embodiment, the electrolytic water system is a PEM electrolyzer, and the PEM electrolyzer completely isolates hydrogen and oxygen through a proton exchange membrane, so that no hydrogen-oxygen mixed gas is produced inside the machine. The oxygen produced by the electrolytic water system is discharged to the outside of the electrolytic water machine through a special O2 output pipeline; the electrolytic water machines currently on the market that use electrolytic water to produce hydrogen do not do special treatment on the oxygen produced, and it escapes randomly inside the electrolytic water machine, and no safety hazards are realized. Therefore, in the present invention, the oxygen produced by the electrolytic water system is discharged to the outside of the electrolytic water machine through a special O2 output pipeline, ensuring high safety of use. In a further embodiment, the hydrogen production system includes a PEM electrolyzer, an electrolytic water tank, and a resin filter element, wherein the inlet of the resin filter element is connected to the water outlet of the water purification device, and a water quality detector and a solenoid valve are also provided on the pipe at the outlet of the resin filter element. The solenoid valve at the outlet of the resin filter element controls the water at the outlet of the resin filter element to be discharged into the electrolytic water tank or the waste water tank. When the water quality detector at the outlet of the resin filter element detects that the water quality does not meet the standard, the solenoid valve controls the water at the outlet of the resin filter element to be discharged into the waste water tank; the electrolytic water tank is connected to the PEM electrolyzer to supply water to the PEM electrolyzer, and the PEM electrolyzer is used to electrolyze water to produce hydrogen. At present, the electrolytic water makers on the market that use the electrolytic water system to produce hydrogen all allow users to add pure water to the electrolytic water tank by themselves; in the present invention, the water quality of the electrolytic water is guaranteed by further filtering through the resin filter element, as well as the control of the water quality detector and the solenoid valve, without the need for users to add pure water to the electrolytic water tank by themselves, which is convenient for users.

[0042] The hydrogen mixing system includes a hydrogen mixing pump and an ultrasonic atomizing hydrogen mixing device, wherein the inlet of the hydrogen mixing pump is connected to the hydrogen production system and the pure water tank, respectively for receiving hydrogen and water, and the outlet of the hydrogen mixing pump is connected to the ultrasonic atomizing hydrogen mixing device, which uses ultrasonic waves to enhance the mixing effect of hydrogen and water. Figures 2 to 5As shown, in this embodiment, the ultrasonic atomization hydrogen mixing device includes a hydrogen mixer body 7, at the two ends of the hydrogen mixer body 7 are respectively a water inlet 1 and a water outlet 2, and an ultrasonic device 3 is installed in the hydrogen mixer body 7; in a further embodiment, the water inlet 1 of the hydrogen mixer body 7 is an 80° inclined ladder water inlet, so that the water entering from the water inlet 1 is ejected toward the inner wall of the hydrogen mixer body 7; the front section of the water outlet 2 is a tapered pipe along the water flow direction; in this embodiment, the two ends of the hydrogen mixer body 7 are respectively an inlet end cover 5 and an outlet end cover 6, and the water inlet 1 and the water outlet 2 are respectively arranged on the inlet end cover 5 and the outlet end cover 6; the inlet end cover 5 and the hydrogen mixer body 7 are connected by threads and sealed by a sealing ring 4, and similarly, the outlet end cover 6 and the hydrogen mixer body 7 are connected by threads and sealed by a sealing ring 4. The hydrogen and water are repeatedly cut, stirred and pressurized by the hydrogen mixing pump to form a high-pressure, high-concentration gas-liquid mixed fluid. After the fluid passes through the water inlet 1 in the form of an 80° inclined ladder water inlet, a high-pressure jet is generated and sprayed onto the inner cavity wall of the hydrogen mixer body 7. The gas-liquid mixed flow is atomized by impact, and at the same time, the ultrasonic device 3 in the inner cavity of the cavity is started to further ultrasonically atomize the atomized water in the inner cavity of the cavity to produce high-hydrogen content hydrogen-rich water / high-hydrogen content mineralized hydrogen-rich water (water made according to user needs). The ultrasonic frequency of the ultrasonic atomization is 2.2MHz ~ 2.4MHz, and the intensity of the ultrasonic wave is 0.15W / cm 2 ~ 0.22W / cm 2 The optimal ultrasonic frequency and intensity can better promote the dissolution of hydrogen and pure water / mineralized water (water produced according to user needs), making the hydrogen and water atomization dissolution more thorough.

[0043] The inlet of the combined filter element system is connected to the pure water tank, and the outlet of the combined filter element system is connected to the hydrogen mixing pump and the wastewater tank, and the outlet of the combined filter element system is connected to one of the hydrogen mixing pump or the wastewater tank through the control of the electromagnetic valve; the pure water tank and the hydrogen mixing pump are controlled by the electromagnetic valve to switch between the two working conditions of direct connection and indirect connection through the combined filter element system; when the user does not need the combined filter element system to add a specific function of water, the pure water tank and the hydrogen mixing pump are directly connected; when the user needs the combined filter element system to add a specific function of water, the pure water tank and the hydrogen mixing pump are indirectly connected through the combined filter element system. The combined filter element system includes a multi-way connector, a Y-type connector and more than one functional filter element, wherein the functional filter element includes one or more of a weak-base filter element, a mineralized filter element, a selenium-rich filter element, a strontium-rich filter element, etc.; the multi-way connector has one inlet and multiple outlets, the inlet of the multi-way connector is connected to a pure water tank, each outlet of the multi-way connector is connected to the inlet of a Y-type connector, and the two outlets of each Y-type connector are respectively connected to a functional filter element, and the Y-type connector controls its inlet to be connected to 0, 1 or 2 outlets through a solenoid valve. Through the cooperation of the above-mentioned multi-way connector, Y-type connector and corresponding solenoid valve, it is possible to call any one or more functional filter elements according to user needs. When the functional filter element is not used for a long time, it is easy to breed bacteria. Therefore, when the outlet of the combined filter element system is connected to the wastewater tank through the solenoid valve control, the designated functional filter element can be flushed.

[0044] The water intake system includes a check valve and a water-gas separator. The inlet of the check valve is connected to the outlet of the ultrasonic atomizing hydrogen mixing device. There are two channels between the outlet of the check valve and the inlet of the water-gas separator, namely a direct connection channel and a heating channel, which are used for water supply at room temperature and heated water supply respectively; the outlet of the water-gas separator provides the separated water to the user through the water outlet. In a further embodiment, the inlet pipe of the water-gas separator is also connected to the inlet of the hydrogen mixing pump; when the electrolytic water machine receives the water outlet instruction from the user and the time since the last water outlet exceeds the preset time, the inlet pipe of the water-gas separator is connected to the inlet of the hydrogen mixing pump through the solenoid valve and isolated from the inlet of the water-gas separator, and the circulation starts to re-mix hydrogen. After re-mixing hydrogen, the inlet pipe of the water-gas separator is isolated from the inlet of the hydrogen mixing pump through the solenoid valve and connected to the inlet of the water-gas separator to supply water to the user. This implementation method effectively solves the problem of reduced hydrogen content in water in the pipeline after a long period of no water supply; at the same time, it also solves the problem that after hydrogen is released from the water in the pipeline due to long-term non-use, if the water is used immediately at this time, complex gas-liquid two-phase flow problems will occur, resulting in the water outlet speed being fast and slow, and the problem of water splashing when taking water.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An electrolytic water making machine, characterized in that: Including internal water purification system, hydrogen production system, hydrogen mixing system, and water intake system; The internal water purification system includes a wastewater tank, a water purification device, and a pure water tank. The inlet of the water purification device is used to receive raw water to be treated, the wastewater outlet of the water purification device is connected to the wastewater tank, and the purified water outlet of the water purification device is connected to the pure water tank; the pure water tank is also connected to a Schumann wave device for emitting Schumann waves into the pure water tank; when the water in the pure water tank is in a static state, the Schumann wave device intermittently emits Schumann waves into the pure water tank; The hydrogen production system is used to generate hydrogen by electrolyzing water; The hydrogen mixing system includes a hydrogen mixing pump and an ultrasonic atomizing hydrogen mixing device, wherein the inlet of the hydrogen mixing pump is connected to the hydrogen production system and the pure water tank, respectively for receiving hydrogen and water, and the outlet of the hydrogen mixing pump is connected to the ultrasonic atomizing hydrogen mixing device; The water intake system includes a check valve and a water-gas separator. The inlet of the check valve is connected to the outlet of the ultrasonic atomization hydrogen mixing device, and the outlet of the check valve is connected to the inlet of the water-gas separator. The outlet of the water-gas separator provides the separated water to the user through the water outlet.

2. The electrolytic water making machine according to claim 1, characterized in that: The frequency of the Schumann wave is 7.83 Hz.

3. The electrolytic water making machine according to claim 1, characterized in that: The hydrogen production system comprises a PEM electrolyzer, an electrolytic water tank, and a resin filter element, wherein the inlet of the resin filter element is connected to the purified water outlet of the water purification device, and a water quality detector and a solenoid valve are provided on the pipe at the outlet of the resin filter element. The solenoid valve at the outlet of the resin filter element controls the water at the outlet of the resin filter element to be discharged into the electrolytic water tank or the waste water tank. When the water quality detector at the outlet of the resin filter element detects that the water quality does not meet the standard, the solenoid valve controls the water at the outlet of the resin filter element to be discharged into the waste water tank; the electrolytic water tank is connected to the PEM electrolyzer to supply water to the PEM electrolyzer, and the PEM electrolyzer is used to electrolyze water to generate hydrogen; The oxygen generated by the PEM electrolyzer is discharged to the outside of the electrolytic water maker through a special O2 output pipeline.

4. The electrolytic water making machine according to claim 1, characterized in that: There are two channels between the check valve outlet and the water-gas separator inlet, namely a direct connection channel and a heating channel. A heater is provided in the heating channel for heating water.

5. The electrolytic water making machine according to claim 1, characterized in that: The inlet pipe of the water-gas separator is also connected to the inlet of the hydrogen mixing pump; when the electrolytic water maker receives a water output command from the user and the preset time has passed since the last water output, the inlet pipe of the water-gas separator is connected to the inlet of the hydrogen mixing pump through the solenoid valve and isolated from the inlet of the water-gas separator, and circulation begins to re-mix hydrogen. After re-mixing hydrogen, the inlet pipe of the water-gas separator is isolated from the inlet of the hydrogen mixing pump through the solenoid valve and connected to the inlet of the water-gas separator to supply water to the user.

6. The electrolytic water making machine according to claim 1, characterized in that: Also includes a combined filter system; The inlet of the combined filter system is connected to the pure water tank, and the outlet of the combined filter system is connected to the hydrogen mixing pump; the pure water tank and the hydrogen mixing pump are controlled by an electromagnetic valve to switch between two working conditions: direct connection and indirect connection through the combined filter system.

7. The electrolytic water making machine according to claim 6, characterized in that: The outlet of the combined filter element system is also connected to the waste water tank, and the outlet of the combined filter element system is connected to one of the hydrogen mixing pump and the waste water tank through the control of the electromagnetic valve.

8. The electrolytic water making machine according to claim 6, characterized in that: The combined filter element system includes a multi-way connector, a Y-type connector and more than one functional filter element; the multi-way connector has one inlet and multiple outlets, the inlet of the multi-way connector is connected to a pure water tank, each outlet of the multi-way connector is connected to the inlet of a Y-type connector, the two outlets of each Y-type connector are respectively connected to a functional filter element, and the Y-type connector controls its inlet to be connected to 0, 1 or 2 outlets through a solenoid valve.

9. The electrolytic water making machine according to claim 8, characterized in that: The functional filter element includes one or more of a weak base filter element, a mineralized filter element, a selenium-rich filter element, and a strontium-rich filter element.

10. The electrolytic water making machine according to claim 1, characterized in that: The ultrasonic atomization hydrogen mixing device comprises a hydrogen mixer body, two ends of which are respectively a water inlet and a water outlet, and an ultrasonic device is installed in the hydrogen mixer body.

11. The electrolytic water making machine according to claim 10, characterized in that: The water inlet of the hydrogen mixer body is an inclined ladder water inlet, so that the water entering from the water inlet is ejected toward the inner wall of the hydrogen mixer body; the front section of the water outlet of the hydrogen mixer body is a tapered pipe along the water flow direction.

12. The electrolytic water making machine according to claim 10, characterized in that: The ultrasonic frequency of the ultrasonic device is between 2.2MHz and 2.4MHz, and the intensity of the ultrasonic wave is 0.15W / cm 2 ~0.22W / cm 2 .

13. The electrolytic water making machine according to claim 1, characterized in that: A water quality detector is provided on the pipe between the purified water outlet of the water purification device and the pure water tank for detecting the water quality.

Images