A process and equipment for preparing hydrogen-rich water

Abstract

The present invention belongs to the technical field of hydrogen-rich water preparation, and discloses a hydrogen-rich water preparation process and equipment. The hydrogen-rich water preparation equipment includes: a hydrogen generator for generating hydrogen after electrolyzing water; a water tank connected to a mixing container for supplying pure water to the mixing container; a first inlet of a pressure-stabilizing tank is connected to the hydrogen generator through a first one-way valve, and a second inlet of the pressure-stabilizing tank is connected to a temporary storage tank through a first solenoid valve; a first outlet of the pressure-stabilizing tank is connected to a microbubble generator through a second solenoid valve, and a second outlet of the pressure-stabilizing tank is connected to the outside through a third solenoid valve; the microbubble generator is connected to the mixing container; a water outlet pipe is connected to the mixing container; a first air pressure detection sensor is arranged in the pressure-stabilizing tank; a pressure-stabilizing device is arranged on the mixing container, and the pressure-stabilizing device is connected to the temporary storage tank. When preparing hydrogen-rich water, the pressure-stabilizing tank for providing hydrogen and the mixing container for dissolving hydrogen can both maintain an appropriate range of air pressure, making the entire preparation process more controllable.

Description

Technical Field

[0001] The present invention belongs to the technical field of hydrogen-rich water preparation, and specifically relates to a hydrogen-rich water preparation process and equipment. Background Art

[0002] Hydrogen-rich water has attracted widespread attention due to its potential antioxidant and anti-inflammatory effects. At present, the main methods for preparing hydrogen-rich water include electrolysis and hydrogen dissolution. Among them, the hydrogen dissolution method increases the solubility of hydrogen in water by pressurizing it, so that hydrogen is dissolved in water. However, there is currently no effective solution to how to reasonably control the pressure in this process and improve the efficiency of hydrogen use. Summary of the invention

[0003] The present invention aims to solve the above technical problems at least to a certain extent. To this end, the present invention aims to provide a process and equipment for preparing hydrogen-rich water.

[0004] The technical solution adopted by the present invention is:

[0005] A hydrogen-rich water preparation device, comprising:

[0006] A hydrogen generator, used to generate hydrogen by electrolyzing water;

[0007] a water tank connected to the mixing container and used for supplying pure water to the mixing container;

[0008] A pressure stabilizing tank, wherein the first inlet of the pressure stabilizing tank is connected to the hydrogen generator through a first one-way valve, and the second inlet of the pressure stabilizing tank is connected to the temporary storage tank through a first solenoid valve; the first outlet of the pressure stabilizing tank is connected to the microbubble generator through a second solenoid valve, and the second outlet of the pressure stabilizing tank is connected to the outside through a third solenoid valve;

[0009] A microbubble generator connected to the mixing container and used to inject hydrogen into the purified water in the form of microbubbles;

[0010] A water outlet pipe, connected to the mixing container, for outputting hydrogen-rich water;

[0011] A first air pressure detection sensor is arranged in the pressure stabilizing tank;

[0012] A pressure stabilizing device, which is arranged on the mixing container and is connected to the temporary storage tank;

[0013] The controller is electrically connected to the hydrogen generator, the first solenoid valve, the second solenoid valve, the third solenoid valve, the microbubble generator and the first air pressure detection sensor respectively. When the microbubble generator is turned on, the controller controls the second solenoid valve to be turned on.

[0014] Preferably, the pressure stabilizing device includes a pressure stabilizing chamber protruding from the top of the mixing container, a gas outlet is provided at the top of the pressure stabilizing chamber, an air outlet pipe and a pressure stabilizing tube are provided in the pressure stabilizing chamber, the upper end of the air outlet pipe is connected to the gas outlet, the air outlet pipe is arranged through the pressure stabilizing tube, a circle of closing plates is provided at the lower end of the pressure stabilizing tube, the closing plates are connected to the outer wall of the pressure stabilizing tube, a through hole is provided on the outer wall of a section of the air outlet pipe opposite to the pressure stabilizing tube, and when the pressure stabilizing device is working, the lower end of the air outlet pipe is located below the liquid level of the mixing container, and the upper end of the pressure stabilizing tube is located above the liquid level of the mixing container.

[0015] Preferably, a plurality of baffles are staggered from top to bottom in the air outlet pipe, the baffles are arranged obliquely, and the projection area of ​​the baffles in the vertical direction is larger than the semicircular area of ​​the air outlet pipe.

[0016] Preferably, the microbubble generator is arranged at the bottom of the mixing container, a mixer is arranged in the middle of the mixing container, a spiral groove is arranged on the inner wall of the mixing container, the mixer includes a bracket and a slider arranged on the outer wall of the bracket, the slider is installed in the spiral groove, and a plurality of teardrop-shaped guide blocks are arranged in the bracket.

[0017] Preferably, the first air pressure detection sensor is used to detect the air pressure in the pressure regulating tank in real time, which is recorded as the first real-time air pressure data; when the first real-time air pressure data is greater than the first threshold value, the controller controls the third solenoid valve to open until the first real-time air pressure data is less than or equal to the first threshold value; when the first real-time air pressure data is less than the second threshold value, the controller controls the first solenoid valve to open until the first real-time air pressure data is equal to the second threshold value. If the first real-time air pressure data is still less than the second threshold value after time t, the controller controls the first solenoid valve to close and controls the hydrogen generator to open until the first real-time air pressure data is greater than or equal to the second threshold value; the first threshold value is greater than the second threshold value.

[0018] Preferably, a second air pressure detection sensor electrically connected to the controller is provided in the temporary storage tank, and the second air pressure detection sensor is used to detect the air pressure in the temporary storage tank in real time, which is recorded as second real-time air pressure data; when the second real-time air pressure data is greater than the third threshold, the controller controls the first solenoid valve to open.

[0019] Preferably, the hydrogen generator comprises multi-layer electrodes and ion exchange membranes, the multi-layer electrodes are multi-layer mesh structures, and the electrodes in each layer are arranged in a staggered manner.

[0020] Preferably, a fourth solenoid valve is provided on the water outlet pipe, and the fourth solenoid valve is electrically connected to the controller. The pressure stabilizing device is connected to the temporary storage tank via a second one-way valve.

[0021] A hydrogen-rich water preparation process uses the above-mentioned hydrogen-rich water preparation equipment to prepare hydrogen-rich water.

[0022] The beneficial effects of the present invention are:

[0023] When preparing hydrogen-rich water, the pressure-stabilizing tank for providing hydrogen and the mixing container for dissolving hydrogen can both maintain a suitable range of gas pressure, making the entire preparation process more controllable; at the same time, the undissolved hydrogen in the mixing container can be recycled to increase the use efficiency of hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the hydrogen-rich water preparation equipment of the present invention.

[0025] Figure 2 It is a schematic diagram of the internal structure of the mixing container of the present invention.

[0026] Figure 3 It is a top view of the air outlet pipe of the present invention.

[0027] In the figure: 1-hydrogen generator; 2-water tank; 3-mixing container; 4-pressure stabilizing tank; 5-first one-way valve; 6-first solenoid valve; 7-temporary storage tank; 8-second solenoid valve; 9-microbubble generator; 10-third solenoid valve; 11-water outlet pipe; 12-fourth solenoid valve; 13-first air pressure detection sensor; 14-pressure stabilizing device; 15-second air pressure detection sensor; 16-second one-way valve; 17-fifth solenoid valve; 18-pressure stabilizing chamber; 19-air outlet pipe; 20-pressure stabilizing tube; 21-closing plate; 22-through hole; 23-baffle; 24-liquid level; 25-spiral groove; 26-bracket; 27-teardrop-shaped guide block. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention. The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations.

[0029] like Figure 1 As shown, a hydrogen-rich water preparation device of this embodiment mainly includes a hydrogen generator 1, a water tank 2, a mixing container 3, a pressure-stabilizing tank 4, a temporary storage tank 7, a microbubble generator 9, a pressure-stabilizing device 14 and a controller, wherein the mixing container 3, the pressure-stabilizing tank 4 and the temporary storage tank 7 are all sealed containers or approximately sealed containers.

[0030] The hydrogen generator 1 is used to generate hydrogen by electrolyzing water. The hydrogen generator 1 includes a multilayer electrode and an ion exchange membrane. The multilayer electrode is a multilayer mesh structure. The electrodes in each layer are arranged in a staggered manner. The staggered multilayer electrodes can increase the electrolysis area and the hydrogen generation rate, thereby improving the electrolysis efficiency.

[0031] The water tank 2 is connected to the mixing container 3 via a fifth solenoid valve 17. The water tank 2 is used to store purified water and supply purified water to the mixing container 3. The purified water may be prepared by a water purifier.

[0032] The pressure-suppressing tank 4 has two inlets and two outlets. The first inlet of the pressure-suppressing tank 4 is connected to the outlet of the hydrogen generator 1 through the first one-way valve 5, and the second inlet of the pressure-suppressing tank 4 is connected to the temporary storage tank 7 through the first solenoid valve 6; the first outlet of the pressure-suppressing tank 4 is connected to the microbubble generator 9 through the second solenoid valve 8, and the second outlet of the pressure-suppressing tank 4 is connected to the outside through the third solenoid valve 10.

[0033] A liquid level sensor is provided in the mixing container 3, and a microbubble generator 9 is provided at the bottom of the mixing container 3 and connected to the mixing container 3. The microbubble generator 9 needs to be connected to a power source when in use. When the microbubble generator 9 is working, hydrogen can be injected into the pure water in the form of microbubbles to obtain hydrogen-rich water. The microbubbles have a large specific surface area, which can increase the contact area between hydrogen and pure water, thereby improving the dissolution efficiency of hydrogen. The water outlet pipe 11 is connected to the mixing container 3 and is used to output hydrogen-rich water. A fourth solenoid valve 12 is provided on the water outlet pipe 11.

[0034] A first air pressure detection sensor 13 is provided in the pressure stabilizing tank 4. The first air pressure detection sensor 13 is used to detect the air pressure in the pressure stabilizing tank 4 in real time, which is recorded as first real-time air pressure data.

[0035] The pressure stabilizing device 14 is disposed on the mixing container 3 , and an outlet of the pressure stabilizing device 14 is connected to the temporary storage tank 7 via a second one-way valve 16 .

[0036] The controller is electrically connected to the hydrogen generator 1, the first solenoid valve 6, the second solenoid valve 8, the third solenoid valve 10, the fourth solenoid valve 12, the fifth solenoid valve 17, the microbubble generator 9, the first air pressure detection sensor 13 and the liquid level sensor respectively; and when the microbubble generator 9 is turned on, the controller controls the second solenoid valve 8 to open.

[0037] The pressure regulating tank 4 stores hydrogen for standby use and maintains a certain air pressure; when the hydrogen-rich water preparation equipment is working for the first time, the first solenoid valve 6, the second solenoid valve 8, and the third solenoid valve 10 are in a closed state, and the controller controls the fifth solenoid valve 17 to open, and the pure water in the water tank 2 is injected into the mixing container 3 until the liquid level sensor detects that the liquid level in the mixing container 3 reaches a predetermined liquid level, and then the controller controls the microbubble generator 9 to open, and at the same time controls the second solenoid valve 8 to open, and the hydrogen in the pressure regulating tank 4 is injected into the pure water in the microbubble generator 9 in the form of microbubbles through the microbubble generator 9 to obtain hydrogen-rich water. As the hydrogen in the pressure regulating tank 4 is continuously input into the microbubble generator 9, the air pressure in the pressure regulating tank 4 decreases. When the first real-time air pressure data is less than the second threshold value, the controller controls the hydrogen generator 1 to open, and the hydrogen generated by the hydrogen generator 1 is input into the pressure regulating tank 4 through the first one-way valve 5 for replenishment. The air pressure of the pressure regulating tank 4 gradually increases with the input of hydrogen until the first real-time air pressure data is greater than or equal to the second threshold value, and the hydrogen generator 1 is closed.

[0038] As hydrogen-rich water is prepared, the undissolved hydrogen in the mixing container 3 enters the temporary storage tank 7 through the pressure stabilizing device 14 and the second one-way valve 16. At this time, when the air pressure in the pressure stabilizing tank 4 decreases until the first real-time air pressure data is less than the second threshold, the controller preferentially controls the first solenoid valve 6 to open, and the hydrogen in the temporary storage tank 7 is input into the pressure stabilizing tank 4 for replenishment until the first real-time air pressure data is equal to the second threshold. If the first real-time air pressure data is still less than the second threshold after the set time t (the value of t needs to be set according to the solvent of the pressure stabilizing tank 4 and the second threshold value), it means that the hydrogen in the temporary storage tank 7 is insufficient to replenish the pressure stabilizing tank 4. The controller controls the first solenoid valve 6 to close and controls the hydrogen generator 1 to open until the first real-time air pressure data is greater than or equal to the second threshold.

[0039] In order to ensure the safe use of the pressure-stabilizing tank 4, when the first real-time air pressure data is greater than the first threshold, the controller controls the third solenoid valve 10 to open and discharge hydrogen until the first real-time air pressure data is less than or equal to the first threshold; wherein the first threshold is greater than the second threshold.

[0040] In order to ensure the safe use of the temporary storage tank 7, a second air pressure detection sensor 15 electrically connected to the controller is provided in the temporary storage tank 7. The second air pressure detection sensor 15 is used to detect the air pressure in the temporary storage tank 7 in real time, which is recorded as the second real-time air pressure data; when the second real-time air pressure data is greater than the third threshold value, the controller controls the first solenoid valve 6 to open, and discharges hydrogen into the pressure regulating tank 4 until the second real-time air pressure data is less than or equal to the third threshold value.

[0041] A dryer is provided between the first inlet of the surge tank 4 and the hydrogen generator 1, and a dryer is provided between the second inlet of the surge tank 4 and the temporary storage tank 7. The setting of the dryer can ensure the dryness of the hydrogen entering the surge tank 4 to increase the subsequent solubility of the hydrogen in pure water.

[0042] like Figure 2 and Figure 3 As shown, the pressure stabilizing device 14 includes a pressure stabilizing chamber 18 protruding from the top of the mixing container 3, the cross-sectional area of ​​the pressure stabilizing chamber 18 is smaller than the cross-sectional area of ​​the mixing container 3, a gas outlet is provided at the top of the pressure stabilizing chamber 18, and the gas outlet also serves as the outlet of the mixing container 3, and an air outlet pipe 19 and a pressure stabilizing tube 20 are provided in the pressure stabilizing chamber 18, the upper end of the air outlet pipe 19 is sealed and connected to the gas outlet, and the middle and upper part of the air outlet pipe 19 passes through the pressure stabilizing tube 20, and a circle of closing plates 21 are provided at the lower end of the pressure stabilizing tube 20, and the closing plates 21 are connected to the outer wall of the pressure stabilizing tube 20, and the pressure stabilizing tube 20 is fixed by the closing plates 21. There is a certain distance between the upper end of the pressure stabilizing tube 20 and the inner top wall of the pressure stabilizing chamber 18, which can allow hydrogen to enter from the upper end of the pressure stabilizing tube 20.

[0043] A through hole 22 is provided on the outer wall of a section of the air outlet pipe 19 opposite to the voltage-stabilizing tube 20. When the voltage-stabilizing device 14 is working, the lower ends of the through hole 22 and the air outlet pipe 19 are both located below the liquid level 24 of the mixing container 3, and the upper end of the voltage-stabilizing tube 20 is located above the liquid level of the mixing container 3.

[0044] A hydrogen sensor electrically connected to the controller is provided in the mixing container 3. When the mixing container 3 is working, the hydrogen that is not completely dissolved in the pure water injected in the form of microbubbles is collected in the pressure-stabilizing chamber 18 and enters the pressure-stabilizing tube 20. As the hydrogen accumulates, the air pressure of the mixing container 3 gradually increases, which can ensure the dissolution efficiency of the hydrogen. As the mixing container 3 becomes larger, the liquid level in the pressure-stabilizing tube 20 gradually decreases under the action of the air pressure until it reaches the through hole 22. The hydrogen enters the outlet pipe 19 from the through hole 22. The hydrogen first contacts the pure water in the outlet pipe 19, and part of the hydrogen is dissolved again. The remaining hydrogen is discharged to the temporary storage tank 7 through the gas outlet at the top of the pressure-stabilizing chamber 18 for reuse. As the hydrogen is discharged from the mixing container 3, the air pressure decreases, and the liquid level in the pressure-stabilizing tube 20 rises back to cover the through hole 22, and the above process is repeated until the hydrogen sensor in the mixing container 3 detects that the hydrogen content of the hydrogen-rich water reaches a preset value, and the controller controls the microbubble generator 9 to close and controls the fourth solenoid valve 12 to open to output hydrogen-rich water. The provision of the pressure stabilizing device 14 can ensure that the gas pressure in the mixing container 3 can be maintained within a reasonable range, while ensuring that the hydrogen can be redissolved when it is discharged.

[0045] A plurality of baffles 23 are staggered from top to bottom in the gas outlet pipe 19, and the baffles 23 are arranged obliquely, and the projection area of ​​the baffles 23 in the vertical direction is larger than the semicircular area of ​​the gas outlet pipe 19. The baffles 23 can prevent the hydrogen from being mixed with pure water and splashing when it is discharged through the gas outlet pipe 19 and the gas outlet, and prevent the liquid from entering the temporary storage tank 7.

[0046] The microbubble generator 9 is arranged at the bottom of the mixing container 3, and a mixer is arranged in the middle of the mixing container 3, such as Figure 2 As shown, the mixing container 3 is cylindrical, and a spiral groove 25 is provided on the inner wall of the mixing container 3. The mixer includes a circular bracket 26 and a slider arranged on the outer wall of the bracket 26. The slider is slidably installed in the spiral groove 25. A plurality of teardrop-shaped guide blocks 27 are provided in the bracket 26. The cross section of the teardrop-shaped guide block 27 gradually increases and then gradually decreases from top to bottom. When the microbubbles generated by the microbubble generator 9 gush upward, the pure water mixed with microbubbles flows through the gaps between the teardrop-shaped guide blocks. Due to the squeezing, the flow rate is accelerated, which is more conducive to the dissolution of hydrogen. At the same time, under the push of the water flow, the bracket 26 will spirally slide along the spiral groove 25, further changing the flow pattern of the water flow, so that the microbubbles are fully dispersed.

[0047] It should be noted that a pump can be provided on the pipelines connecting the various components to transport pure water or hydrogen as needed.

[0048] The present embodiment also discloses a hydrogen-rich water preparation process, which uses the above-mentioned hydrogen-rich water preparation equipment to prepare hydrogen-rich water, specifically comprising the steps of: injecting pure water in the water tank 2 into the mixing container 3 to reach a predetermined liquid level, opening the microbubble generator 9 and the second solenoid valve 8, and injecting the hydrogen in the pressure-regulating tank 4 into the pure water in the microbubble generator 9 through the microbubble generator 9 to obtain hydrogen-rich water.

[0049] The present invention is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the protection scope of the present invention.

Claims

1. A hydrogen-rich water preparation device, characterized in that: include: A hydrogen generator (1) for generating hydrogen by electrolyzing water; A water tank (2) connected to the mixing container (3) and used to supply pure water to the mixing container (3); A pressure stabilizing tank (4), wherein a first inlet of the pressure stabilizing tank (4) is connected to the hydrogen generator (1) via a first one-way valve (5), and a second inlet of the pressure stabilizing tank (4) is connected to the temporary storage tank (7) via a first electromagnetic valve (6); a first outlet of the pressure stabilizing tank (4) is connected to the microbubble generator (9) via a second electromagnetic valve (8), and a second outlet of the pressure stabilizing tank (4) is connected to the outside via a third electromagnetic valve (10); A microbubble generator (9) connected to the mixing container (3) and used to inject hydrogen into the pure water in the form of microbubbles; A water outlet pipe (11) connected to the mixing container (3) and used for outputting hydrogen-rich water; A first air pressure detection sensor (13) is arranged in the pressure regulating tank (4); A pressure stabilizing device (14), the pressure stabilizing device (14) is arranged on the mixing container (3), and the pressure stabilizing device (14) is connected to the temporary storage tank (7); a controller electrically connected to the hydrogen generator (1), the first solenoid valve (6), the second solenoid valve (8), the third solenoid valve (10), the microbubble generator (9) and the first air pressure detection sensor (13), respectively, and when the microbubble generator (9) is turned on, the controller controls the second solenoid valve (8) to be turned on; The microbubble generator (9) is arranged at the bottom of the mixing container (3), a mixer is arranged in the middle of the mixing container (3), a spiral groove (25) is arranged on the inner wall of the mixing container (3), the mixer comprises a bracket (26) and a slider arranged on the outer wall of the bracket (26), the slider is installed in the spiral groove (25), and a plurality of teardrop-shaped guide blocks (27) are arranged in the bracket (26).

2. The hydrogen-rich water preparation device according to claim 1, characterized in that: The pressure stabilizing device (14) comprises a pressure stabilizing chamber (18) protruding from the top of the mixing container (3), a gas outlet being provided at the top of the pressure stabilizing chamber (18), a gas outlet pipe (19) and a pressure stabilizing tube (20) being provided in the pressure stabilizing chamber (18), the upper end of the gas outlet pipe (19) being connected to the gas outlet, the gas outlet pipe (19) passing through the pressure stabilizing tube (20), a circle of closing plates (21) being provided at the lower end of the pressure stabilizing tube (20), the closing plates (21) being connected to the outer wall of the pressure stabilizing tube (20), a through hole (22) being provided on the outer wall of a section of the gas outlet pipe (19) opposite to the pressure stabilizing tube (20), and when the pressure stabilizing device (14) is in operation, the lower end of the gas outlet pipe (19) is located below the liquid level of the mixing container (3), and the upper end of the pressure stabilizing tube (20) is located above the liquid level of the mixing container (3).

3. The hydrogen-rich water preparation device according to claim 2, characterized in that: A plurality of baffles (23) are arranged in an alternating manner from top to bottom in the air outlet pipe (19); the baffles (23) are arranged at an angle, and a projection area of ​​the baffles (23) in the vertical direction is larger than a semicircular area of ​​the air outlet pipe (19).

4. The hydrogen-rich water preparation device according to claim 1, characterized in that: The first air pressure detection sensor (13) is used to detect the air pressure in the pressure regulating tank (4) in real time, which is recorded as the first real-time air pressure data; when the first real-time air pressure data is greater than a first threshold value, the controller controls the third solenoid valve (10) to open until the first real-time air pressure data is less than or equal to the first threshold value; when the first real-time air pressure data is less than a second threshold value, the controller controls the first solenoid valve (6) to open until the first real-time air pressure data is equal to the second threshold value; if the first real-time air pressure data is still less than the second threshold value after time t, the controller controls the first solenoid valve (6) to close, and controls the hydrogen generator (1) to open until the first real-time air pressure data is greater than or equal to the second threshold value; the first threshold value is greater than the second threshold value.

5. The hydrogen-rich water preparation device according to claim 1 or 4, characterized in that: A second air pressure detection sensor (15) electrically connected to the controller is provided in the temporary storage tank (7). The second air pressure detection sensor (15) is used to detect the air pressure in the temporary storage tank (7) in real time, which is recorded as second real-time air pressure data. When the second real-time air pressure data is greater than a third threshold value, the controller controls the first solenoid valve (6) to open.

6. The hydrogen-rich water preparation device according to claim 1, characterized in that: The hydrogen generator (1) comprises a multilayer electrode and an ion exchange membrane. The multilayer electrode is a multilayer mesh structure, and the electrodes in each layer are arranged in a staggered manner.

7. The hydrogen-rich water preparation device according to claim 1, characterized in that: The water outlet pipe (11) is provided with a fourth solenoid valve (12), and the fourth solenoid valve (12) is electrically connected to the controller.

8. The hydrogen-rich water preparation device according to claim 1, characterized in that: The pressure stabilizing device (14) is connected to the temporary storage tank (7) via a second one-way valve (16).

9. A process for preparing hydrogen-rich water, characterized in that: Hydrogen-rich water is prepared using the hydrogen-rich water preparation equipment as described in any one of claims 1 to 8.

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