CN219239372U - High-concentration hydrogen-rich water preparation device - Google Patents
High-concentration hydrogen-rich water preparation device Download PDFInfo
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- CN219239372U CN219239372U CN202223599389.5U CN202223599389U CN219239372U CN 219239372 U CN219239372 U CN 219239372U CN 202223599389 U CN202223599389 U CN 202223599389U CN 219239372 U CN219239372 U CN 219239372U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Abstract
The utility model relates to the technical field of hydrogen-rich water preparation, in particular to a high-concentration hydrogen-rich water preparation device, wherein an inner ring is arranged on the inner side of a preparation tank, an annular groove is formed in the middle of the inner ring, a plurality of vertical cutters are connected to the upper side and the lower side of each transverse cutter, a plurality of convex rings are arranged on the upper side and the lower side of each annular groove, the convex rings and the vertical cutters are arranged at intervals, cutting gaps are formed between the convex rings, the transverse cutters are used for transversely cutting hydrogen bubbles, the vertical cutters are used for vertically cutting the hydrogen bubbles, the uniformity of the hydrogen bubble cutting is improved, the shearing is formed through the relative movement of the vertical cutters and the convex rings, the generated shearing force enables the hydrogen bubbles to be sheared into hydrogen bubbles with the diameter smaller than the width of the cutting gaps, turbulence is formed in the cutting gaps by the hydrogen bubbles, the hydrogen bubble cutting effect is improved, the hydrogen bubbles are split into finer hydrogen bubbles, the number of the hydrogen bubbles is further improved, and the concentration of hydrogen molecules dissolved in water is further improved.
Description
Technical Field
The utility model relates to the technical field of hydrogen-rich water preparation, in particular to a high-concentration hydrogen-rich water preparation device.
Background
Hydrogen-rich water refers to water containing trace hydrogen molecules, also known as aqua, which is a very effective antioxidant capable of activating cells and promoting metabolism, and hydrogen is the only selectively antioxidant substance identified as having the effect of selectively neutralizing hydroxyl radicals and nitrite anions, which is the molecular basis of hydrogen for treating diseases against oxidative damage.
At present, a hydrogen-rich water machine is utilized to generate hydrogen through electrolysis of water, then the water is wrapped with the hydrogen through a physical mode to form hydrogen bubbles, so that the hydrogen and the water are mixed to be in a stable state, hydrogen-rich water is generated, but the hydrogen is extremely insoluble in the water, the diffusivity is extremely strong, the hydrogen can quickly rise to the surface of the water body to escape and collapse, the hydrogen-rich water with supersaturated concentration is prepared by the traditional electrolysis technology under standard conditions, so that the larger hydrogen bubbles are cut into smaller hydrogen bubbles through a physical cutting mode, the quantity of nano hydrogen bubbles is improved, the concentration of hydrogen molecules dissolved in the water is improved, the current physical cutting mode is single, the cutting effect is not ideal, the uniformity of the hydrogen bubbles is low, the quantity of the hydrogen bubbles is small, and the concentration of the hydrogen molecules dissolved in the water is not high.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims to provide a high-concentration hydrogen-rich water preparation device which is used for uniformly cutting hydrogen bubbles, improving the concentration of hydrogen dissolved in water and improving the quantity of hydrogen bubbles.
The technical scheme adopted by the utility model is as follows:
the high-concentration hydrogen-rich water preparation device comprises a preparation tank and a circulating water inlet and outlet assembly communicated with the preparation tank, wherein a rotating shaft is rotationally connected in the preparation tank, a hollow cavity is formed in the rotating shaft, the bottom of the rotating shaft is connected with an air jet pipe communicated with the hollow cavity, the outer side of the rotating shaft is connected with a cutting knife set, a plurality of groups of cutting knife sets are uniformly distributed along the vertical direction, the inner side of the preparation tank is provided with a plurality of inner rings which are respectively arranged corresponding to the plurality of groups of cutting knife sets, and the middle part of each inner ring is provided with an annular groove communicated with the circulating water inlet and outlet assembly;
each group of cutting knife group comprises a plurality of transverse cutters distributed in an annular array, the upper side and the lower side of each transverse cutter are connected with a plurality of vertical cutters, the upper side and the lower side of each annular groove are provided with a plurality of convex rings, the convex rings and the vertical cutters are arranged at intervals, and cutting gaps are arranged between the convex rings and the vertical cutters.
Preferably, the circulating water inlet and outlet assembly comprises a piston cylinder, a water suction pipe and a water return pipe, wherein the piston cylinder is respectively communicated with the water suction pipe and the water return pipe, and is fixed at the top of the preparation tank, the water suction pipe is connected with a plurality of sub-suction pipes, the water return pipe is connected with a plurality of spray pipes, and each spray pipe and the water suction pipe are respectively communicated with two sides of each annular groove.
The piston cylinder is connected with a piston head in a sliding way, a connecting rod is fixedly connected to the piston head, the top of the rotating shaft is connected with a cam, the outer side of the cam is provided with a sliding groove, the connecting rod is connected with a sliding block, the sliding block is connected to the sliding groove in a sliding way, and one-way valves are arranged in the water suction pipe and the water return pipe.
Preferably, the top of the cam is connected with a driving wheel, the top of the preparation tank is provided with a motor, and the output end of the motor is connected with the driving wheel through a belt.
Preferably, a first water guide block is communicated between the piston cylinder and the water suction pipe, a second water guide block is communicated between the piston cylinder and the water return pipe, and second micro through holes are formed in the first water guide block and the second water guide block and uniformly distributed in a plurality.
Preferably, a cutting screen plate is connected between two adjacent transverse cutting blades along the vertical direction, and a plurality of first micro through holes are uniformly distributed on the cutting screen plate.
Preferably, one side of the cutting screen plate is fixedly connected with the rotating shaft.
Preferably, the top of the preparation tank is provided with an air inlet box which is communicated with the hollow cavity, one side of the air inlet box is communicated with an air inlet pipe, the rotating shaft penetrates through the air inlet box, an air inlet hole which is communicated with the hollow cavity is formed in the rotating shaft, and the air inlet hole is positioned in the air inlet box.
Preferably, one side of the preparation tank is communicated with a water inlet pipe, the other side of the preparation tank is communicated with a water outlet pipe, and control valves are arranged on the water inlet pipe, the water outlet pipe and the air inlet pipe.
Preferably, the air nozzles are distributed in an annular array, and a plurality of air nozzles communicated with the hollow cavity are uniformly distributed on the outer side of the air nozzles.
Preferably, the vertical cutters are arranged in an arc shape, and the two ends of the vertical cutters are provided with cutting edges.
The utility model has the beneficial effects that:
this high concentration hydrogen-rich water preparation facilities carries out horizontal cutting through horizontal cutter to hydrogen bubble, carries out vertical cutting through perpendicular cutter to hydrogen bubble, improves hydrogen bubble cutting uniformity, forms the shearing through the relative motion of perpendicular cutter and bulge loop, and the shearing force that produces makes hydrogen bubble be sheared into the hydrogen bubble that the diameter is less than cutting gap width, and hydrogen bubble forms the turbulent flow in cutting gap, improves hydrogen bubble cutting effect, makes hydrogen bubble split into finer hydrogen bubble, further improves hydrogen bubble's quantity, and then improves the concentration that hydrogen molecule dissolved in water.
Drawings
Fig. 1 is a first perspective view of the present utility model.
Fig. 2 is a second perspective view of the present utility model.
Fig. 3 is a vertical cross-sectional view of the present utility model.
Fig. 4 is a perspective cross-sectional view of the present utility model.
Fig. 5 is an enlarged schematic view at a in fig. 4.
Fig. 6 is an enlarged schematic view at B in fig. 4.
Fig. 7 is a schematic view of the internal structure of the present utility model.
Fig. 8 is a schematic connection diagram of the rotating shaft.
Fig. 9 is a schematic view of the internal structure of the manufacturing tank.
Fig. 10 is an exploded view of the present utility model.
Fig. 11 is a schematic structural view of the vertical cutter.
In the figure: 1. preparing a tank; 2. a circulating water inlet and outlet assembly; 3. a rotating shaft; 4. a hollow cavity; 5. a gas lance; 6. a cutting knife group; 7. an inner ring; 8. an annular groove; 9. a transverse cutter; 10. a vertical cutter; 11. a convex ring; 12. cutting the gap; 13. a piston cylinder; 14. a water suction pipe; 15. a water return pipe; 16. a sub-suction pipe; 17. a spray pipe; 18. a piston head; 19. a connecting rod; 20. a cam; 21. a chute; 22. a slide block; 23. a driving wheel; 24. a motor; 25. a belt; 26. a first water guide block; 27. a second water guide block; 28. a second micro through hole; 29. cutting the screen plate; 30. a first micro through hole; 31. an air inlet box; 32. an air inlet pipe; 33. an air inlet hole; 34. a water inlet pipe; 35. a water outlet pipe; 36. a gas injection hole; 37. and (3) cutting edges.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 11, the present utility model provides a technical solution: the utility model provides a high concentration hydrogen-rich water preparation facilities, includes preparation jar 1 and with the circulation business turn over water subassembly 2 of preparation jar 1 intercommunication, the 1 internal rotation of preparation jar is connected with pivot 3, has seted up cavity 4 in the pivot 3, the bottom of pivot 3 is connected with the gas jet tube 5 with cavity 4 intercommunication, its characterized in that:
the outer side of the rotating shaft 3 is connected with a cutting knife group 6, the cutting knife group 6 is uniformly distributed with a plurality of groups along the vertical direction, the inner side of the preparation tank 1 is provided with a plurality of inner rings 7 which are respectively arranged corresponding to the plurality of groups of cutting knife groups 6, and the middle part of the inner ring 7 is provided with an annular groove 8 which is communicated with the circulating water inlet and outlet assembly 2;
each group of cutting knife group 6 comprises a plurality of transverse cutting knives 9 distributed in an annular array, a plurality of vertical cutting knives 10 are connected to the upper side and the lower side of the transverse cutting knives 9, a plurality of convex rings 11 are arranged on the upper side and the lower side of the annular groove 8, the convex rings 11 are arranged at intervals with the vertical cutting knives 10, and cutting gaps 12 are arranged between the convex rings 11 and the vertical cutting knives 10.
Referring to fig. 10, in order to facilitate automatic driving of the water body to circulate, in this embodiment, preferably, the circulating water inlet and outlet assembly 2 includes a piston cylinder 13, a water suction pipe 14 and a water return pipe 15, wherein the piston cylinder 13 is respectively communicated with the water suction pipe 14 and the water return pipe 15, and is fixed at the top of the preparation tank 1, the water suction pipe 14 is connected with a plurality of sub-suction pipes 16, the water return pipe 15 is connected with a plurality of spray pipes 17, and each spray pipe 17 and the water suction pipe 14 are respectively communicated with two sides of each annular groove 8.
the purpose is in the rotation process of the rotating shaft 3, the connecting rod 19 and the piston head 18 are driven to reciprocate in the piston cylinder 13 through the cooperation of the sliding groove 21 and the sliding block 22, so that purified water containing hydrogen bubbles in the preparation tank 1 can be sucked through the water suction pipe 14 and the sub suction pipe 16, wherein the sub suction pipe 16 can suck purified water with different depths in the preparation tank 1, purified water containing hydrogen bubbles with different diameters is sucked into the piston cylinder 13 for mixing, the thorough mixing of the hydrogen bubbles and the purified water can be further increased, the sucked purified water is sprayed into the preparation tank 1 through the water return pipe 15 and the spraying pipe 17 and collides with the vertical cutter 10 and the transverse cutter 9 in the rotation process, the hydrogen bubbles in the purified water are further collided and broken into nano-scale hydrogen bubbles, and the solubility of the nano-scale hydrogen bubbles in the purified water is greatly improved, so that high-concentration hydrogen-enriched water is prepared.
Referring to fig. 2, in order to conveniently drive the rotating shaft 3 to rotate, in this embodiment, preferably, a driving wheel 23 is connected to the top of the cam 20, a motor 24 is mounted on the top of the preparation tank 1, and an output end of the motor 24 is connected to the driving wheel 23 through a belt 25.
Referring to fig. 6, in order to facilitate forming turbulence, improve the cutting effect of hydrogen bubbles, make the hydrogen bubbles split into finer hydrogen bubbles, further improve the number of hydrogen bubbles, in this embodiment, preferably, a first water guiding block 26 is disposed between the piston cylinder 13 and the water suction pipe 14, a second water guiding block 27 is disposed between the piston cylinder 13 and the water return pipe 15, second micro through holes 28 are disposed on the first water guiding block 26 and the second water guiding block 27, and a plurality of second micro through holes 28 are uniformly arranged, so that the shearing force generated by passing the water flow through the second micro through holes 28 makes the hydrogen disperse more nano hydrogen bubbles, and further improves the concentration of hydrogen molecules dissolved in water.
Referring to fig. 8, in order to facilitate forming turbulence, improve the cutting effect of hydrogen bubbles, make the hydrogen bubbles split into finer hydrogen bubbles, further improve the number of hydrogen bubbles, in this embodiment, preferably, a cutting screen 29 is connected between two adjacent transverse cutters 9 along the vertical direction, and a plurality of first micro through holes 30 are uniformly distributed on the cutting screen 29, so that the cutting screen 29 can be driven to rotate during the rotation of the rotating shaft 3, so that water flows through the first micro through holes 30, and the shearing force generated by the water flows through the first micro through holes 30 makes the hydrogen disperse more nano hydrogen bubbles, thereby improving the concentration of hydrogen molecules dissolved in water.
Referring to fig. 8, in order to improve the structural strength and the structural stability, in this embodiment, it is preferable that one side of the cutting screen 29 is fixedly connected to the rotating shaft 3.
Referring to fig. 4, in order to facilitate introducing hydrogen into the preparation tank 1, in this embodiment, preferably, an air inlet box 31 is disposed at the top of the preparation tank 1, the air inlet box 31 is communicated with the hollow cavity 4, an air inlet pipe 32 is disposed on one side of the air inlet box 31, the rotating shaft 3 penetrates through the air inlet box 31, an air inlet hole 33 is disposed on the rotating shaft 3 and is communicated with the hollow cavity 4, the air inlet hole 33 is disposed in the air inlet box 31, the purpose is to open a control valve on the air inlet pipe 32 to charge hydrogen into the air inlet box 31 through the air inlet pipe 32, the rotating shaft 3 penetrates through the air inlet box 31 and the penetrating joint is in a sealed state, and hydrogen entering the air inlet box 31 enters the hollow cavity 4 of the rotating shaft 3 from the air inlet hole 33, so that the hydrogen enters the air ejector 5 through the hollow cavity 4.
Referring to fig. 2, in order to control the discharge of hydrogen and pure water into the preparation tank 1 and to control the discharge of hydrogen-rich water out of the preparation tank 1, in this embodiment, preferably, one side of the preparation tank 1 is provided with a water inlet pipe 34 and the other side thereof is provided with a water outlet pipe 35, and control valves are installed on the water inlet pipe 34, the water outlet pipe 35 and the air inlet pipe 32, so that the pure water can be controlled to be discharged into the preparation tank 1 or closed by controlling the control valve switch on the water inlet pipe 34, the hydrogen-rich water can be controlled to be discharged out of the preparation tank 1 or closed by controlling the control valve switch on the water outlet pipe 35, and the hydrogen can be controlled to be discharged into the preparation tank 1 or closed by controlling the control valve switch on the air inlet pipe 32.
Referring to fig. 8, in order to conveniently improve the efficiency of dissolving hydrogen in purified water, in this embodiment, preferably, the air ejector 5 is distributed in an annular array, and a plurality of air ejector holes 36 communicated with the hollow cavity 4 are uniformly distributed on the outer side of the air ejector 5, so that hydrogen is discharged into purified water in the preparation tank 1 through the air ejector holes 36 formed in the air ejector 5, the air ejector holes 36 are through holes with smaller diameters and distributed with each other, the hydrogen filled into the purified water rises from the bottom of the preparation tank 1 in a fine bubble shape, and meanwhile, the air ejector 5 can be driven to rotate in the preparation tank 1 in the rotating process of the rotating shaft 3, so that hydrogen bubbles ejected through the air ejector holes 36 can contact with purified water in the preparation tank 1 more uniformly and sufficiently, the contact area between the hydrogen and the purified water can be increased, and the efficiency of dissolving the hydrogen in the purified water can be improved.
Referring to fig. 11, in order to improve the cutting effect on hydrogen bubbles, in this embodiment, it is preferable that the vertical cutter 10 is arc-shaped, and both ends are provided with cutting edges 37.
The working principle and the using flow of the utility model are as follows: the motor 24 drives the driving wheel 23 to rotate through the belt 25, and then drives the rotating shaft 3 to rotate, the matched air inlet pipe 32 fills hydrogen into the air jet pipe 5 through the air inlet box 31 and the hollow cavity 4, so that the hydrogen is diffused into purified water in the preparation tank 1 in a bubble shape through the air jet holes 36 on the air jet pipe 5, the transverse cutter 9 and the vertical cutter 10 are driven to rotate in the rotating process of the rotating shaft 3, the hydrogen bubbles can fully contact with the purified water in the rotating process of the air jet pipe 5, the transverse cutter 9 can transversely rotary-cut the hydrogen bubbles in the floating process, the hydrogen bubbles are split into finer hydrogen bubbles, the vertical cutter 10 sprays purified water containing the hydrogen bubbles in the rotating process through the piston cylinder 13, the cutting uniformity of the hydrogen bubbles is improved, the generated shearing force enables the hydrogen bubbles to be sheared into the hydrogen bubbles with the diameter smaller than the width of the cutting gap 12, the hydrogen bubbles form turbulence in the cutting gap 12, the bubble cutting effect is improved, the hydrogen bubbles are split into the nanoscale hydrogen bubbles, the quantity of the hydrogen bubbles is further improved, and the concentration of the hydrogen bubbles in the water is further improved.
Finally, it should be noted that: the foregoing is merely a preferred example of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a high concentration hydrogen-rich water preparation facilities, includes preparation jar (1) and with circulation business turn over water subassembly (2) of preparation jar (1) intercommunication, preparation jar (1) internal rotation is connected with pivot (3), cavity (4) have been seted up in pivot (3), the bottom of pivot (3) is connected with jet-propelled pipe (5) with cavity (4) intercommunication, its characterized in that:
the outer side of the rotating shaft (3) is connected with a cutting knife group (6), the cutting knife groups (6) are uniformly distributed with a plurality of groups along the vertical direction, the inner side of the preparation tank (1) is provided with a plurality of inner rings (7) which are respectively and correspondingly arranged with the plurality of groups of cutting knife groups (6), and the middle part of the inner rings (7) is provided with an annular groove (8) which is communicated with the circulating water inlet and outlet assembly (2);
every group cutting knife group (6) all include that a plurality of is annular array distribution's transection sword (9), the upper and lower both sides of transection sword (9) all are connected with a plurality of and erect cutter (10), the upper and lower both sides of ring channel (8) all are provided with a plurality of bulge loop (11), bulge loop (11) are the interval setting with erect cutter (10), and are equipped with cutting clearance (12) between them.
2. The high-concentration hydrogen-rich water production apparatus according to claim 1, wherein: the circulating water inlet and outlet assembly (2) comprises a piston cylinder (13), a water suction pipe (14) and a water return pipe (15), wherein the piston cylinder (13) is respectively communicated with the water suction pipe (14) and the water return pipe (15), the piston cylinder is fixed at the top of the preparation tank (1), the water suction pipe (14) is connected with a plurality of sub-suction pipes (16), the water return pipe (15) is connected with a plurality of spray pipes (17), and each spray pipe (17) and each water suction pipe (14) are respectively communicated with two sides of each annular groove (8);
piston head (18) is connected with in sliding mode in piston cylinder (13), fixedly connected with connecting rod (19) on piston head (18), the top of pivot (3) is connected with cam (20), the outside of cam (20) is equipped with spout (21), connecting rod (19) are connected with slider (22), slider (22) sliding connection is on spout (21), all install the check valve in water suction pipe (14) and wet return (15).
3. The high-concentration hydrogen-rich water production apparatus according to claim 2, wherein: the top of the cam (20) is connected with a driving wheel (23), a motor (24) is arranged at the top of the preparation tank (1), and the output end of the motor (24) is connected with the driving wheel (23) through a belt (25).
4. A high-concentration hydrogen-rich water producing apparatus according to claim 2 or 3, characterized in that: the novel water pump is characterized in that a first water guide block (26) is communicated between the piston cylinder (13) and the water suction pipe (14), a second water guide block (27) is communicated between the piston cylinder (13) and the water return pipe (15), second micro through holes (28) are formed in the first water guide block (26) and the second water guide block (27), and a plurality of second micro through holes (28) are uniformly distributed.
5. The high-concentration hydrogen-rich water production apparatus according to claim 1, wherein: a cutting screen plate (29) is connected between two adjacent transverse cutting blades (9) along the vertical direction, and a plurality of first micro through holes (30) are uniformly distributed on the cutting screen plate (29).
6. The apparatus for producing high-concentration hydrogen-rich water according to claim 5, wherein: one side of the cutting screen plate (29) is fixedly connected with the rotating shaft (3).
7. The high-concentration hydrogen-rich water production apparatus according to claim 1, wherein: the top of preparation jar (1) is equipped with inlet box (31), inlet box (31) and cavity (4) intercommunication, and its one side intercommunication is equipped with intake pipe (32), pivot (3) run through in inlet box (31), set up inlet port (33) that are linked together with cavity (4) on pivot (3), inlet port (33) are located inlet box (31).
8. The high-concentration hydrogen-rich water production apparatus according to claim 1, wherein: one side of the preparation tank (1) is communicated with a water inlet pipe (34), the other side of the preparation tank is communicated with a water outlet pipe (35), and control valves are arranged on the water inlet pipe (34), the water outlet pipe (35) and the air inlet pipe (32).
9. The high-concentration hydrogen-rich water production apparatus according to claim 1, wherein: the air ejector tubes (5) are distributed in a ring-shaped array, and a plurality of air ejector holes (36) communicated with the hollow cavity (4) are uniformly distributed on the outer side of the air ejector tubes.
10. The high-concentration hydrogen-rich water production apparatus according to claim 1, wherein: the vertical cutter (10) is arc-shaped, and two ends of the vertical cutter are provided with cutting edges (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223599389.5U CN219239372U (en) | 2022-12-29 | 2022-12-29 | High-concentration hydrogen-rich water preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223599389.5U CN219239372U (en) | 2022-12-29 | 2022-12-29 | High-concentration hydrogen-rich water preparation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219239372U true CN219239372U (en) | 2023-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223599389.5U Active CN219239372U (en) | 2022-12-29 | 2022-12-29 | High-concentration hydrogen-rich water preparation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219239372U (en) |
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2022
- 2022-12-29 CN CN202223599389.5U patent/CN219239372U/en active Active
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