Gas-liquid mixing device for preparing hydrogen-rich water

Abstract

The invention discloses a gas-liquid mixing device for preparing hydrogen-rich water. The gas-liquid mixing device comprises a shell and a gas-liquid mixing assembly, a gas-liquid inlet and a gas-liquid outlet are formed in the two axial ends of the shell; the gas-liquid mixing assembly is arranged in the shell and comprises a plurality of first gas mixing pieces and second gas mixing pieces which are alternately arranged in a stacked mode in the axial direction of the shell. A self-excitation turbulent flow type flow channel is formed between the adjacent first gas mixing sheet and second gas mixing sheet; the self-excitation turbulent flow type flow channel comprises a main flow channel and an auxiliary flow channel; the plurality of auxiliary runners are arranged beside the main runner, and the two ends of each auxiliary runner are communicated with the main runner; the head end and the tail end of each self-excitation turbulent flow type flow channel are sequentially communicated to form a gas-liquid mixing channel; the inlet end of the gas-liquid mixing channel is communicated with the gas-liquid inlet; and the outlet end of the gas-liquid mixing channel is communicated with the gas-liquid outlet. The hydrogen and water can be fully mixed and dissolved, the mixing efficiency is high, the overall structure is compact, the size is small, and the actual application requirement is effectively met.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen-rich water preparation devices, and in particular to a gas-liquid mixing device for preparing hydrogen-rich water. Background Art

[0002] Hydrogen-rich water, also known as "hydrogen water" or "Hydrogen-RichWater", is a functional drinking water formed by mixing hydrogen into water, which contains trace amounts of hydrogen molecules. Due to the small size, strong penetration and strong reducing properties of hydrogen molecules, hydrogen-rich water has the following effects: Antioxidant effect: Hydrogen-rich water contains hydrogen, which is a highly effective antioxidant. Hydrogen can remove harmful free radicals in the body and reduce oxidative stress, thereby protecting cells from damage and delaying the aging process. Promote digestion and enhance physical strength: Drinking hydrogen-rich water can improve the function of the digestive system and help food digest and absorb better. In addition, it can also enhance physical strength and improve muscle recovery efficiency after exercise. Improve blood sugar control: Hydrogen-rich water helps improve the symptoms of hyperglycemia, by reducing cholesterol reserves and blood viscosity, and improving insulin secretion function, thereby helping to control blood sugar levels. Anti-cancer potential: Hydrogen-rich water can inhibit the division and reproduction of cancer cells, and shows inhibitory effects on certain types of cancer cells. This provides the possibility for the application of hydrogen-rich water in adjuvant cancer treatment. Anti-inflammatory effect: Hydrogen-rich water has a significant anti-inflammatory effect, which can reduce inflammatory reactions and accelerate inflammatory recovery. It has the potential to help alleviate the symptoms of some inflammatory diseases. Beauty and anti-aging: Hydrogen-rich water is also used in the beauty and anti-aging fields due to its antioxidant properties. It can remove free radicals that cause skin aging and help maintain skin elasticity and radiance.

[0003] Since hydrogen has a low solubility in water, its solubility is 1600 ppb at room temperature and pressure. Currently, there are three ways to obtain hydrogen-rich water: (1) Electrolysis of water: using an electrolysis device to decompose water into hydrogen and oxygen, dissolving the hydrogen produced at the negative electrode in water, and adjusting the concentration of hydrogen in hydrogen-rich water by controlling the electrolysis conditions. This is one of the most commonly used methods for preparing hydrogen-rich water. The technology is mature and the structure is relatively simple, but there is a problem of uneven mixing of hydrogen. (2) Solid dissolution method: using the principle that certain metals (such as magnesium, aluminum, etc.) or their compounds react with water to produce hydrogen to prepare hydrogen-rich water. This method is simple to operate and has a rapid reaction, but the amount of hydrogen produced is unstable, and metal ions are easily left in the water. (3) Physical mixing method: the hydrogen produced by electrolysis or the hydrogen stored in cans is pressurized and dissolved in water through a special device. This method can prepare high-concentration hydrogen-rich water without introducing other impurities, but the device cost is relatively high.

[0004] Therefore, it is necessary to design a gas-liquid mixing device to quickly dissolve hydrogen in water and obtain hydrogen-rich water with a higher solubility to meet practical application needs. Summary of the invention

[0005] In view of the above-mentioned technical problems, the purpose of the present invention is to propose a gas-liquid mixing device for preparing hydrogen-rich water, which can achieve sufficient mixing and dissolution of hydrogen and water, has high mixing efficiency, and has a compact overall structure and small size, effectively meeting practical application needs.

[0006] The technical solution of the present invention is achieved as follows: A gas-liquid mixing device for preparing hydrogen-rich water comprises a shell and a gas-liquid mixing component;

[0007] The shell is provided with a gas-liquid inlet and a gas-liquid outlet at two axial ends;

[0008] The gas-liquid mixing assembly is arranged inside the shell, and includes a plurality of first gas mixing plates and second gas mixing plates alternately stacked along the axial direction of the shell;

[0009] A self-excited turbulent flow channel is formed between the adjacent first and second gas mixing sheets; the self-excited turbulent flow channel includes a main flow channel and a secondary flow channel; the main flow channel has two ends when the fluid flows in one direction; a plurality of the secondary flow channels are arranged beside the main flow channel, and the two ends of the secondary flow channels are connected to the main flow channel;

[0010] The head and tail ends of each of the self-excited turbulent flow channels are connected in sequence to form a gas-liquid mixing channel; the inlet end of the gas-liquid mixing channel is connected to the gas-liquid inlet; the outlet end of the gas-liquid mixing channel is connected to the gas-liquid outlet.

[0011] Furthermore, the self-excited turbulent flow channel is a groove structure, formed on the front side of the first air mixing plate and the front side of the second air mixing plate; among the two adjacent first air mixing plates and the second air mixing plate, the back side of one is in sealing contact with the front side of the other, and covers the top opening of the self-excited turbulent flow channel on the corresponding front side.

[0012] Furthermore, a first through hole penetrating along the stacking direction is provided on the first air mixing plate at the head end of the main flow channel, and a second through hole penetrating along the stacking direction is provided on the second air mixing plate at the head end of the main flow channel; the first through hole is connected to the tail end of the main flow channel on the second air mixing plate on the adjacent side, and the second through hole is connected to the tail end of the main flow channel on the first air mixing plate on the adjacent side.

[0013] Further, a sealing structure is provided on the front side of the first air mixing sheet and the front side of the second air mixing sheet; a sealing matching structure is provided on the back side of the first air mixing sheet and the back side of the second air mixing sheet corresponding to the sealing structure; the sealing structure extends around the front side to separate the inner area and the outer area on the front side; the head end and the tail end of the self-excited turbulent flow channel are respectively arranged in the inner area and the outer area;

[0014] The sealing structure on one of the adjacent first gas mixing plates and the adjacent second gas mixing plates is plugged and sealed with the sealing matching structure on the other along the axial direction of the housing.

[0015] Furthermore, one of the sealing structure and the sealing matching structure is a recessed structure, and the other is a raised structure.

[0016] Furthermore, the beginning end of the main flow channel on the first air mixing plate is located at the center of the first air mixing plate; correspondingly, the end end of the main flow channel on the second air mixing plate is located at the center of the second air mixing plate.

[0017] Furthermore, positioning structures are provided on the front side of the first air mixing plate and the front side of the second air mixing plate; positioning matching structures are provided on the back side of the first air mixing plate and the back side of the second air mixing plate corresponding to the positioning structures; and the positioning structure on one of the adjacent first air mixing plates and the second air mixing plate is plugged in and matched with the positioning matching structure on the other along the axial direction of the shell.

[0018] Furthermore, a sealing ring is sleeved on the outer peripheral surface of at least one of the first gas mixing plate and the second gas mixing plate; the sealing ring is in sealing contact with the inner peripheral wall of the shell.

[0019] Furthermore, the secondary flow channel has an extension direction between the head and tail ends; the extension direction is an arc direction.

[0020] Furthermore, at least one axial end of the shell is provided with an end cover; the end cover is threadedly and hermetically connected to the shell, or the end cover and the shell are hermetically connected by spin welding.

[0021] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0022] 1. The present invention forms a self-excited turbulent flow channel between the first mixing plate and the second mixing plate through the coordinated use of the first mixing plate and the second mixing plate, and each self-excited turbulent flow channel is interconnected to form a gas-liquid mixing channel. The mixed fluid of hydrogen and water can be transported through the gas-liquid mixing channel, and the mixed fluid flows dispersedly in the main channel and each side channel. The mixed fluid in each side channel flows out from the tail end and merges with the mixed fluid in the main channel and collides with each other, so that the mixed fluid is easy to form a strong turbulent effect in the self-excited turbulent flow channel. Based on the strong turbulent effect that is easily formed by the unidirectional flow of the mixed fluid in the self-excited turbulent flow channel, under the action of turbulence, hydrogen and water are violently stirred, and the hydrogen bubbles in the water are elongated and split to form smaller bubbles. After repeated many times, a larger number of small bubbles are formed in the water, thereby achieving an ideal mixed dissolution effect. In addition, the mixing effect of hydrogen and water is related to the length of the self-excited turbulent flow channel. By arranging the first mixing plate and the second mixing plate in a stacked manner so that the gas-liquid mixing channel forms a three-dimensional channel structure in the shell, the length of the gas-liquid mixing channel can be extended, thereby achieving sufficient mixing and dissolution of hydrogen and water, with high mixing efficiency and good mixing effect. At the same time, the overall structure is compact and small in size, which effectively meets the needs of practical applications.

[0023] 2. The present invention uses a sealing structure and a sealing matching structure in pairs. When the first gas mixing sheet and the second gas mixing sheet are stacked and assembled, the sealing structure and the sealing matching structure are combined with each other to improve the sealing performance when the first gas mixing sheet and the second gas mixing sheet are stacked. At the same time, the head and tail ends of the self-excited turbulent flow channel on the first gas mixing sheet and the second gas mixing sheet can be separated to prevent the mixed fluid of hydrogen and water from flowing directly between the head and tail ends of the self-excited turbulent flow channel, effectively improving the waterproof sealing effect of the overall structure. In addition, the sealing structure and the sealing matching structure are assembled in a plug-in manner, which effectively improves the assembly efficiency of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The technical solution of the present invention is further described below in conjunction with the accompanying drawings:

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the overall structure of the present invention;

[0026] Figure 2 for Figure 1 Exploded view of;

[0027] Figure 3 for Figure 1 A cross-sectional structural diagram of ;

[0028] Figure 4 is a schematic diagram of the three-dimensional structure of the first air mixing sheet of the present invention;

[0029] Figure 5 for Figure 4 A schematic diagram of a three-dimensional structure from another perspective;

[0030] Figure 6 is a schematic diagram of the three-dimensional structure of the second air mixing sheet of the present invention;

[0031] Figure 7 for Figure 6 A schematic diagram of a three-dimensional structure from another perspective;

[0032] Among them: 1. Shell; 11. Gas-liquid inlet; 12. Gas-liquid outlet; 13. End cover; 2. First gas mixing plate; 21. First through hole; 3. Second gas mixing plate; 31. Second through hole; 4. Sealing ring; 5. Self-excited turbulent flow channel; 51. Main flow channel; 52. Secondary flow channel; 6. Positioning structure; 61. Positioning matching structure; 7. Sealing structure; 71. Sealing matching structure. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0034] like Figure 1-7 The figure shows a gas-liquid mixing device for preparing hydrogen-rich water described in this embodiment, which is suitable for mixing hydrogen and water in the process of preparing hydrogen-rich water. The gas-liquid mixing device includes a shell 1 and a gas-liquid mixing component. Among them, the shell 1 is a hollow structure, and a gas-liquid inlet 11 and a gas-liquid outlet 12 are processed at both axial ends of the shell 1. The mixed fluid of hydrogen and water can enter the interior of the shell 1 through the gas-liquid inlet 11 and then be discharged through the gas-liquid outlet 12. In this embodiment, an end cover 13 is installed at one axial end of the shell 1. The end cover 13 is threadedly sealed to the shell 1, or the end cover 13 is sealed to the shell 1 by spin welding. The aforementioned gas-liquid inlet 11 and gas-liquid outlet 12 are arranged on the end cover 13.

[0035] The aforementioned gas-liquid mixing component is installed inside the shell 1 in a clearance-fitting manner. The gas-liquid mixing component includes a plurality of first gas mixing sheets 2 and second gas mixing sheets 3 that are alternately stacked along the axial direction of the shell 1. Among them, the number of the first gas mixing sheets 2 and the number of the second gas mixing sheets 3 are both even numbers. The outermost first gas mixing sheet 2 abuts against one end of the shell 1. When the end cover 13 is assembled to the shell 1, the end cover 13 abuts against and squeezes the outermost second gas mixing sheet 3, so that each first gas mixing sheet 2 and each second gas mixing sheet 3 fits tightly. A self-excited turbulent flow channel 5 is formed between the adjacent first gas mixing sheets 2 and second gas mixing sheets 3. In the specific structural design, the self-excited turbulent flow channel 5 includes a main flow channel 51 and a secondary flow channel 52. The main flow channel 51 has two ends when the fluid flows in one direction. The head and tail ends of the main flow channel 51 are the head and tail ends of the self-excited turbulent flow channel 5. Several secondary flow channels 52 are arranged beside the main flow channel 51, and both ends of the secondary flow channels 52 are connected to the main flow channel 51. The mixed fluid of hydrogen and water can enter through the head end of the self-excited turbulent flow channel 5, and then be output from the tail end of the self-excited turbulent flow channel 5 through the main flow channel 51 and the secondary flow channel 52. The head and tail ends of each self-excited turbulent flow channel 5 are connected in series in sequence to form a gas-liquid mixing channel. The gas-liquid mixing channel has an inlet end for fluid entry and an outlet end for fluid discharge. The inlet end of the gas-liquid mixing channel is connected to the gas-liquid inlet 11. The outlet end of the gas-liquid mixing channel is connected to the gas-liquid outlet 12. Through the above-mentioned structural design, the mixed fluid of hydrogen and water can enter the gas-liquid mixing channel through the gas-liquid inlet 11 and the inlet end of the gas-liquid mixing channel, and the mixed fluid flows unidirectionally in each self-excited turbulent flow channel 5, and is discharged through the outlet end of the gas-liquid mixing channel and the gas-liquid outlet 12. When the mixed fluid of hydrogen and water is transported in the gas-liquid mixing channel, the mixed fluid disperses and flows in the main channel 51 and the side channel 52. The mixed fluid in each side channel 52 flows out from the tail end and merges with the fluid in the main channel 51 to collide with each other, so that the mixed fluid is easy to form a strong turbulence effect in the self-excited turbulent flow channel. Based on the strong turbulence effect that is easy to form when the mixed fluid flows in a self-excited turbulent flow channel in one direction, under the action of turbulence, hydrogen and water can be violently stirred, and the hydrogen bubbles in the water are elongated and split to form smaller bubbles. After repeated many times, more small bubbles are formed in the water, thereby achieving an ideal mixed dissolution effect.

[0036] At least one of the first gas mixing plate 2 and the second gas mixing plate 3 is provided with a sealing ring 4 on its outer circumference. The sealing ring 4 is an O-ring in the prior art. The sealing ring 4 is in sealing contact with the inner circumferential wall of the housing 1, and a good seal between the gas-liquid mixing assembly and the housing 1 is achieved through the sealing ring 4.

[0037] In this embodiment, the aforementioned first gas mixing sheet 2 and the second gas mixing sheet 3 both have a front side facing the gas-liquid outlet 12 and a back side facing away from the front side. The self-excited turbulent flow channel 5 is a groove structure, and the self-excited turbulent flow channel 5 is formed by processing on the front side of the first gas mixing sheet 2 and the front side of the second gas mixing sheet 3. Of the two adjacent first gas mixing sheets 2 and the second gas mixing sheet 3, the back side of one is in sealing contact with the front side of the other, and the top opening of the self-excited turbulent flow channel 5 on the corresponding front side is sealed, so that the fluid flows along the self-excited turbulent flow channel 5, and it is difficult to overflow from between the first gas mixing sheet 2 and the second gas mixing sheet 3.

[0038] Among them, a sealing structure 7 is processed on the front of the first air mixing piece 2 and the front of the second air mixing piece 3. A sealing matching structure 71 is processed on the back of the first air mixing piece 2 and the back of the second air mixing piece 3 corresponding to the sealing structure 7. The sealing structure 7 is a strip structure, which extends and surrounds the front of the first air mixing piece 2 and the front of the second air mixing piece 3 to separate the inner area and the outer area on the front. The head end and the tail end of the self-excited turbulent flow channel 5 (main channel 51) are respectively arranged in the inner area and the outer area. Of the two adjacent first air mixing pieces 2 and the second air mixing piece 3, the sealing structure 7 on one and the sealing matching structure 71 on the other are plugged and sealed along the axial direction of the shell 1. Through the above structural design, when the first gas mixing sheet 2 and the second gas mixing sheet 3 are stacked and assembled, the sealing structure 7 and the sealing matching structure 71 are sealed and combined with each other to improve the sealing performance when the first gas mixing sheet 2 and the second gas mixing sheet 3 are stacked, and at the same time, the head and tail ends of the self-excited turbulent flow channel 5 on the first gas mixing sheet 2 and the second gas mixing sheet 3 can be separated to prevent the mixed fluid of hydrogen and water from flowing directly between the head and tail ends of the self-excited turbulent flow channel 5, effectively improving the waterproof sealing effect of the overall structure. In addition, the sealing structure 7 and the sealing matching structure 71 are assembled in a plug-in manner, which effectively improves the assembly efficiency of the overall structure.

[0039] In the specific structural design, one of the aforementioned sealing structure 7 and the sealing matching structure 71 is a concave structure and the other is a convex structure. The concave structure and the convex structure form a plug-in seal in a tightly matched manner.

[0040] In this embodiment, the first gas mixing sheet 2 and the second gas mixing sheet 3 are both made of plastic.

[0041] The first through hole 21 penetrating along the stacking direction (the thickness direction of the first air mixing sheet 2) is processed at the head end of the main flow channel 51 on the aforementioned first air mixing sheet 2, and the second through hole 31 penetrating along the stacking direction (the thickness direction of the second air mixing sheet 3) is processed at the head end of the main flow channel 51 on the second air mixing sheet 3. The first through hole 21 is connected to the tail end of the main flow channel 51 on the second air mixing sheet 3 on the adjacent side, and the second through hole 31 is connected to the tail end of the main flow channel 51 on the first air mixing sheet 2 on the adjacent side. Through the above-mentioned structural design, when the first air mixing sheet 2 and the second air mixing sheet 3 are stacked and assembled, the head and tail ends of each self-excited turbulent flow channel 5 can be connected to form a gas-liquid mixing channel. In the specific structural arrangement, the head end of the main flow channel 51 on the first air mixing sheet 2 is located at the center of the first air mixing sheet 2. Correspondingly, the tail end of the main flow channel 51 on the second air mixing sheet 3 is located at the center of the second air mixing sheet 3. The extension direction between the first and last ends of the main flow channel 51 is the vortex line direction. Through this extension direction, the overall length of the self-excited turbulent flow channel 5 can be increased. And the extension direction between the two ends of the secondary flow channel 52 is an arc direction, so as to increase the length of the secondary flow channel 52.

[0042] In this embodiment, a positioning structure 6 is processed on the front of the first air mixing sheet 2 and the front of the second air mixing sheet 3. And a positioning matching structure 61 is processed on the back of the first air mixing sheet 2 and the back of the second air mixing sheet 3 corresponding to the positioning structure 6. Of the two adjacent first air mixing sheets 2 and second air mixing sheets 3, the positioning structure 6 on one is plugged and matched with the positioning matching structure 61 on the other along the axial direction of the shell 1. Through the above structural design, when stacked, the first air mixing sheet 2 and the second air mixing sheet 3 can be positioned with each other to limit the relative rotation between the two. In the specific design, the positioning structure 6 is a positioning pin rod, and the positioning matching structure 61 is a positioning countersunk hole.

[0043] Specifically, the first gas mixing sheets 2 and the second gas mixing sheets 3 are stacked and assembled in sequence to form a gas-liquid mixing assembly. In the adjacent first gas mixing sheets 2 and the second gas mixing sheets 3, the positioning structure 6 and the positioning matching structure 61 are plugged and positioned with each other, and the sealing structure 7 and the sealing matching structure 71 are plugged and sealed with each other. Then the gas-liquid mixing assembly is inserted into the shell 1 as a whole, and then the end cover 13 is assembled to the shell 1. In the above stacked assembly, each self-excited turbulent flow channel 5 is directly connected through the first through hole 21 and the second through hole 31 to form a gas-liquid mixing channel inside the shell 1.

[0044] When used specifically, the mixed fluid of hydrogen and water enters the gas-liquid mixing channel through the gas-liquid inlet 11 and the inlet end of the gas-liquid mixing channel and is transported, and then discharged through the outlet end of the gas-liquid mixing channel and the gas-liquid outlet 12. When the mixed fluid of hydrogen and water is transported in the gas-liquid mixing channel, the mixed fluid disperses and flows in the main channel 51 and the secondary channel 52, and the mixed fluid in each secondary channel 52 flows out from the tail end and merges with the fluid in the main channel 51 and collides with each other, so that the mixed fluid is easy to form a strong turbulence effect in the self-excited turbulent flow channel. Based on the strong turbulence effect that is easily formed by the unidirectional flow of the mixed fluid in the self-excited turbulent flow channel, under the action of turbulence, the hydrogen and water can be violently stirred, and the hydrogen bubbles in the water are elongated and split to form smaller bubbles. After repeated many times, a larger number of small bubbles are formed in the water, thereby achieving an ideal mixed dissolution effect. In addition, the mixing effect of hydrogen and water is related to the length of the self-excited turbulent flow channel 5. By arranging the first mixing plate 2 and the second mixing plate 3 in a stacked manner so that the gas-liquid mixing channel forms a three-dimensional channel structure in the shell 1, the length of the gas-liquid mixing channel can be extended, thereby achieving sufficient mixing and dissolution of hydrogen and water, high mixing efficiency and good mixing effect. At the same time, the overall structure is compact and small in size, which effectively meets the needs of actual applications.

[0045] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A gas-liquid mixing device for preparing hydrogen-rich water, comprising a shell and a gas-liquid mixing component; characterized in that: The shell is provided with a gas-liquid inlet and a gas-liquid outlet at two axial ends; The gas-liquid mixing assembly is arranged inside the shell, and includes a plurality of first gas mixing plates and second gas mixing plates alternately stacked along the axial direction of the shell; A self-excited turbulent flow channel is formed between the adjacent first and second gas mixing sheets; the self-excited turbulent flow channel includes a main flow channel and a secondary flow channel; the main flow channel has two ends when the fluid flows in one direction; a plurality of the secondary flow channels are arranged beside the main flow channel, and the two ends of the secondary flow channels are connected to the main flow channel; The head and tail ends of each of the self-excited turbulent flow channels are connected in sequence to form a gas-liquid mixing channel; the inlet end of the gas-liquid mixing channel is connected to the gas-liquid inlet; the outlet end of the gas-liquid mixing channel is connected to the gas-liquid outlet.

2. A gas-liquid mixing device for preparing hydrogen-rich water according to claim 1, characterized in that: The self-excited turbulent flow channel is a groove structure, formed on the front side of the first air mixing plate and the front side of the second air mixing plate; the back side of one of the adjacent first air mixing plates and the second air mixing plate is in sealing contact with the front side of the other, and covers the top opening of the self-excited turbulent flow channel on the corresponding front side.

3. A gas-liquid mixing device for preparing hydrogen-rich water according to claim 2, characterized in that: A first through hole penetrating along the stacking direction is provided on the first air mixing plate at the head end of the main flow channel, and a second through hole penetrating along the stacking direction is provided on the second air mixing plate at the head end of the main flow channel; the first through hole is connected to the tail end of the main flow channel on the second air mixing plate on the adjacent side, and the second through hole is connected to the tail end of the main flow channel on the first air mixing plate on the adjacent side.

4. A gas-liquid mixing device for preparing hydrogen-rich water according to claim 2, characterized in that: A sealing structure is provided on the front side of the first air mixing plate and the front side of the second air mixing plate; a sealing matching structure is provided on the back side of the first air mixing plate and the back side of the second air mixing plate corresponding to the sealing structure; the sealing structure extends around the front side to separate the inner area and the outer area on the front side; the head end and the tail end of the self-excited turbulent flow channel are respectively arranged in the inner area and the outer area; The sealing structure on one of the adjacent first gas mixing plates and the adjacent second gas mixing plates is plugged and sealed with the sealing matching structure on the other along the axial direction of the housing.

5. A gas-liquid mixing device for preparing hydrogen-rich water according to claim 4, characterized in that: Of the sealing structure and the sealing matching structure, one is a recessed structure and the other is a raised structure.

6. A gas-liquid mixing device for preparing hydrogen-rich water according to claim 2, characterized in that: The head end of the main flow channel on the first air mixing plate is located at the center of the first air mixing plate; correspondingly, the tail end of the main flow channel on the second air mixing plate is located at the center of the second air mixing plate.

7. A gas-liquid mixing device for preparing hydrogen-rich water according to claim 2, characterized in that: Positioning structures are provided on the front side of the first air mixing plate and the front side of the second air mixing plate; positioning matching structures are provided on the back side of the first air mixing plate and the back side of the second air mixing plate corresponding to the positioning structures; the positioning structure on one of the adjacent first air mixing plates and the second air mixing plate is plugged in and matched with the positioning matching structure on the other along the axial direction of the shell.

8. A gas-liquid mixing device for preparing hydrogen-rich water according to claim 2, characterized in that: A sealing ring is sleeved on the outer peripheral surface of at least one of the first gas mixing plate and the second gas mixing plate; and the sealing ring is in sealing contact with the inner peripheral wall of the shell.

9. A gas-liquid mixing device for preparing hydrogen-rich water according to claim 1, characterized in that: The secondary flow channel has an extension direction between two ends; the extension direction is an arc direction.

10. A gas-liquid mixing device for preparing hydrogen-rich water according to claim 1, characterized in that: At least one axial end of the shell is provided with an end cover; the end cover is threadedly and sealedly connected to the shell, or the end cover and the shell are sealedly connected by spin welding.

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