TWI736770B - Apparatus and method of producing hydrogen water - Google Patents

Abstract

Disclosed are an apparatus and a method of producing hydrogen water which are capable of obtaining high concentration hydrogen water. The apparatus of producing hydrogen water includes a dissolution part disposed with a frame body having a supply port, an exhaust port, and a concave part disposed inside the frame body and facing the supply port; a water supply part configured to supply water to the frame body through the supply port; a hydrogen supply part configured to supply hydrogen to the frame body through the supply port; and a control part configured to control the water supply part and the hydrogen supply part, and that when water is supplied inside the frame body to supply hydrogen thereto and after hydrogen is retained in the concave part, a mixture of water and hydrogen is supplied to the frame body.

Description

Hydrogen water manufacturing device and manufacturing method

The present invention relates to a hydrogen water manufacturing device and manufacturing method.

In recent years, hydrogen water has attracted attention in terms of effective health promotion. As a method of producing such hydrogen water, various methods have been proposed. For example, Patent Document 1 and Patent Document 2 describe a method of dissolving hydrogen generated by the electrolysis of water in water to produce hydrogen water.

[Prior Technical Literature]

[Patent Literature]

Patent Document 1: Japanese Patent Application Laid-Open No. 2016-101585.

Patent Document 2: Japanese Utility Model Registration No. 3204432.

Recently, a small server that allows ordinary consumers to easily consume hydrogen water is being developed. On the other hand, in the case of a small server, only small water electrolysis cells or hydrogen storage tanks can be installed. Therefore, the amount of hydrogen that can be supplied is limited and it is difficult to obtain high-concentration hydrogen water.

In view of the above-mentioned circumstances, the object of the present invention is to provide a hydrogen water production device and a production method that can obtain high-concentration hydrogen water.

In order to achieve the above-mentioned object, a hydrogen water production apparatus according to an aspect of the present invention includes: a dissolving part having: a frame body with a supply port and a discharge port formed thereon; and a recessed part disposed in the frame body and open toward the supply port; A water supply unit that can supply water into the frame from the supply port; a hydrogen supply unit that can supply hydrogen into the frame from the supply port; and a control unit that controls the water supply unit and the hydrogen supply unit to thereby After hydrogen is supplied to the housing filled with water and the hydrogen is stored in the recessed portion, a mixture of water and hydrogen is supplied to the housing.

With this configuration, hydrogen can be stored in the recesses of the dissolving part in advance. Thereby, when the mixture of water and hydrogen is supplied to the dissolving part, the hydrogen stored in the recess can be brought into contact with the mixture, and the hydrogen stored in the recess can be dissolved in the mixture. In this way, high-concentration hydrogen water can be obtained.

The control unit may supply the mixture into the housing while maintaining a state in which hydrogen is stored in the recess.

In this way, the state that hydrogen is easily dissolved in the mixture is maintained, and high-concentration hydrogen water can be obtained more easily.

In order to achieve the above-mentioned object, the method for producing hydrogen water in one aspect of the present invention is to supply water from the supply port of a dissolver to fill the frame of the dissolver with water. The dissolver has: the frame is formed with The supply port and the discharge port; and the concave portion are arranged in the frame and open toward the supply port; supply hydrogen from the supply port into the frame filled with water, thereby accumulating hydrogen in the concave portion; and accumulate hydrogen After being left in the recess, while supplying a mixture of water and hydrogen to the housing from the supply port, the hydrogen water is recovered from the discharge port.

The manufacturing method of the said hydrogen water may supply the said mixture into the said housing|casing while maintaining the state which stored hydrogen in the said recessed part.

It is possible to provide a hydrogen water manufacturing device and a manufacturing method that can obtain high-concentration hydrogen water.

10‧‧‧Hydrogen Supply Department

11‧‧‧Water Electrolysis Unit

11a‧‧‧Anode side space

11b‧‧‧Cathode side space

12‧‧‧First pump

13‧‧‧The first box

13a, 21a‧‧‧Water supply port

13b‧‧‧Oxygen outlet

14‧‧‧Membrane electrode assembly

14a‧‧‧Anode

14b‧‧‧Cathode

14c‧‧‧Solid polymer membrane

20‧‧‧Water Supply Department

21‧‧‧The second box

22‧‧‧Second pump

30‧‧‧Dissolution Department

31‧‧‧Dissolver

40‧‧‧Transportation Department

50‧‧‧Control Department

100‧‧‧Hydrogen Water Manufacturing Device

311‧‧‧Frame

321‧‧‧Cylinder-shaped member

331‧‧‧Supply Port

341‧‧‧Exhaust outlet

F1, F2‧‧‧Filter

P‧‧‧Power

P1, P2, P3, P4, P5, P6, P7‧‧‧Flow path

S01, S02, 03‧‧‧Step

S1, S2‧‧‧Internal space

V1, V2, V3‧‧‧Valve

X‧‧‧Hydrogen storage

Fig. 1 is a piping system diagram schematically showing the configuration of a hydrogen water production apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic diagram showing the structure of a water electrolysis unit of the above-mentioned hydrogen water production device.

(A) and (B) in FIG. 3 are cross-sectional views of the dissolver of the above-mentioned hydrogen water production device.

Fig. 4 is a flowchart showing a hydrogen water production method using the above-mentioned hydrogen water production device.

Fig. 5 is a diagram showing the manufacturing process of the above-mentioned hydrogen water manufacturing method.

Fig. 6 is a diagram showing the manufacturing process of the above-mentioned hydrogen water manufacturing method.

Fig. 7 is a diagram showing the manufacturing process of the above-mentioned hydrogen water manufacturing method.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[Configuration of Hydrogen Water Production Device 100]

Fig. 1 is a piping system diagram schematically showing the configuration of a hydrogen water production apparatus 100 according to an embodiment of the present invention. As shown in FIG. 1, the hydrogen water production device 100 includes a hydrogen supply unit 10, a water supply unit 20, a dissolution unit 30, a transport unit 40, and a control unit 50.

(Hydrogen supply unit 10)

The hydrogen supply unit 10 has a water electrolysis unit 11, a first pump 12, a first tank 13, and a valve V1. The hydrogen supply unit 10 is connected to the dissolving unit 30 via the conveying unit 40. The hydrogen supply unit 10 supplies hydrogen to the dissolving unit 30 via the transport unit 40.

As shown in Fig. 1, the water electrolysis unit 11 is connected to the first pump 12 via a flow path P2, and is connected to the first tank 13 via a flow path P3. Moreover, the water electrolysis unit 11 is also connected to the conveyance part 40 via the flow path P4.

FIG. 2 is a schematic diagram showing the structure of the water electrolysis unit 11. The water electrolysis unit 11 of this embodiment is a PEM (Proton Exchange Membrane) type.

As shown in FIG. 2, the water electrolysis unit 11 has an anode side space 11 a, a cathode side space 11 b, and a membrane electrode assembly 14. The anode side space 11a is connected to the flow paths P2 and P3, and the cathode side space 11b is connected to the flow path P4.

As shown in FIG. 2, the membrane electrode assembly 14 has an anode 14a, a cathode 14b, and a solid polymer film 14c. The solid polymer membrane 14c is an ion (proton) exchange membrane that is provided between the anode 14a and the cathode 14b and allows ions (protons) to move from the anode 14a to the cathode 14b. The type of the solid polymer membrane 14c is not particularly limited, and it can be, for example, a Nafion (registered trademark) membrane.

The anode 14a and the cathode 14b are electrodes attached to the surface of the solid polymer film 14c. Specifically, it is composed of a titanium substrate attached to the surface of the solid polymer film 14c and a metal catalyst supported on the titanium substrate. As the metal catalyst, for example, it is composed of a metal material containing nickel (Ni), copper (Cu), palladium (Pd), platinum (Pt), silver (Ag), gold (Au) or alloys of these. The metal catalyst is typically platinum catalyst. The shape of the titanium substrate is not particularly limited, but it is preferably porous or mesh.

As shown in FIG. 2, the water electrolysis unit 11 may include a power source P, or may be externally connected.

The power source P of the water electrolysis unit 11 adopts a DC power source. In the case of using a DC power supply, for example, the applied voltage can be set to 1.7V to 10V, and the applied current can be set to 0.1A to 30A.

In addition, for example, a pulse wave power supply may also be used. Regarding the pulse wave power supply, as an example, the pulse wave generation method can be a direct switch method, a line type method, an induction method, or a Marx method.

In the case of using a pulse wave power supply, for example, the pulse wave frequency can be set to 1 Hz to 1000 Hz, the applied voltage can be set to 1.7V to 10V, and the applied current can be set to 0.1A to 30A.

In the water electrolysis unit 11, by electrolyzing the water supplied to the anode side space 11a, hydrogen is generated in the form of fine bubbles at the cathode 14b. At the same time, oxygen is generated at the anode 14a.

The hydrogen system generates 20 ml to 200 ml from the cathode 14b in one minute. The particle size of the fine hydrogen bubbles is, for example, preferably several hundreds of micrometers (μm) to several millimeters (mm), and more preferably several micrometers to several tens of micrometers. In addition, hydrogen contains a small amount of water that passes through the solid polymer membrane 14c together with hydrogen ions during electrolysis.

The generated oxygen is dissolved in the water supplied to the anode side space 11a to become oxygen water. The oxygen water system is conveyed to the first tank 13 via the flow path P3.

As shown in Fig. 1, the first tank 13 is connected to the first pump 12 via the flow path P1. The first tank 13 is a water storage tank with a function of storing water. The capacity of the first tank 13 is not particularly limited, and can be set to 0.05L to 1L, for example.

The material of the first tank 13 is also not particularly limited, and may be composed of synthetic resin or metal material, for example.

In addition, the first tank 13 of this embodiment has a water supply port 13a and an oxygen discharge port 13b. As shown in Fig. 1, a strainer F1 is installed at the water supply port 13a.

The oxygen discharge port 13b discharges the oxygen transported from the anode space 11a through the flow path P3.

The type of filter F1 is not particularly limited. For example, it can be made into a filter membrane composed of a pre-filter and a main filter. The pre-filter is composed of activated carbon, and the main filter is RO (Reverse Osmosis; reverse osmosis). ) Membrane, NF (Nano Filtration; nanofiltration) membrane, UF (Ultrafiltration; ultrafiltration) membrane or MF (Microfiltration; microfiltration) membrane, ion exchange membrane, etc. Furthermore, the filter F1 can be omitted if necessary. By using the pre-filter and the main filter to filter the water supplied from the water supply port 13a in two stages, pure water can be made.

The first pump 12 is a water supply pump, and has a function of pressure-feeding the water sucked from the first tank 13 through the flow path P1 to the first tank 13 through the flow path P2, the water electrolysis unit 11, and the flow path P3.

Specifically, the first pump 12 sends the water pressure in the first tank 13 to the anode side space 11a.

In addition, the first pump 12 pressure sends the oxygen water in the anode side space 11 a to the first tank 13. The first pump 12 circulates oxygen water between the anode side space 11 a, the first tank 13 and the first pump 12. In addition, the hydrogen supply unit 10 may be configured without the first pump 12 as long as the fluid can circulate. For example, the flow generated when the generated oxygen rises can also be used to circulate the fluid naturally.

Regarding the first pump 12, for example, a diaphragm pump or a booster pump that can send water under pressure is used. Thereby, the device structure of the hydrogen water production device 100 can be achieved, and the simplification and cost reduction can be realized.

Regarding the first pump 12, not only a diaphragm pump or a booster pump can be used, for example, a plunger pump, a gear pump, a dry pump, an oil rotary pump, or a jet pump can also be used. In addition, with regard to the first pump 12, a magnetic pump that hardly applies pressure or the like may be used.

The valve V1 is provided in the flow path P4. The valve V1 adjusts the supply of hydrogen from the hydrogen supply unit 10 to the dissolving unit 30 via the transport unit 40 by opening and closing the valve V1.

The valve V1 is typically a solenoid valve that can open and close the flow path P4, but it is not limited to this. The valve V1 may be, for example, a global valve such as a needle valve with adjustable flow rate, or a ball valve, butterfly valve, gate valve, or diaphragm valve. The hydrogen supply unit 10 may be configured without the valve V1.

For example, the water electrolysis unit 11 of the hydrogen supply unit 10 of the above embodiment generates hydrogen by PEM water electrolysis, but it is not limited to this, and hydrogen may be generated by alkaline water electrolysis or high-temperature steam electrolysis.

In addition, the hydrogen supply unit 10 of the above embodiment supplies hydrogen by the water electrolysis unit 11, but it is not limited to this, and a hydrogen storage tank may be used to supply hydrogen.

(Water supply part 20)

The water supply unit 20 has a second tank 21, a second pump 22, and a valve V2. The water supply unit 20 supplies water to the dissolving unit 30 via the conveying unit 40.

As shown in FIG. 1, the second tank 21 is connected to the second pump 22 via the flow path P5. The second tank 21 typically has the same structure as the first tank 13, but it may be a different type of tank from the first tank 13.

The filter F2 installed at the water supply port 21a of the second tank 21 can be the same type of filter as the filter F1, or a different type of filter.

As shown in FIG. 1, the 2nd pump 22 is connected to the conveyance part 40 via the flow path P6. The second pump 22 has a function of pressure-feeding the water sucked from the second tank 21 through the flow path P5 through the flow path P6 and the conveying part 40 to the dissolving part 30.

The second pump 22 is typically a diaphragm pump or a booster pump that can send water under pressure, but it is not limited to this.

The valve V2 is provided in the flow path P6. The valve V2 adjusts the amount of water supplied from the water supply unit 20 to the dissolving unit 30 via the transport unit 40.

The valve V2 is typically a spherical valve such as a needle valve, but is not limited to this, and may also be a ball valve, butterfly valve, gate valve, or diaphragm valve. The same applies to the valve V3 described later.

(Dissolving part 30)

As shown in FIG. 1, the dissolving part 30 has a dissolver 31 and a valve V3.

As shown in FIG. 1, the dissolver 31 is connected to the hydrogen supply unit 10 and the water supply unit 20 via the transport unit 40. In addition, the flow system discharged from the dissolver 31 is discharged to the outside via the flow path P7. The dissolver 31 has a function of stirring the fluid conveyed from the hydrogen supply part 10 and the water supply part 20 via the conveyance part 40.

(A) in FIG. 3 is a cross-sectional view of the dissolver 31. (B) in FIG. 3 is a cross-sectional view taken along the line AA' of (A) in FIG. 3. Furthermore, in the following figures, the X-axis direction, the Y-axis direction, and the Z-axis direction are three-axis directions orthogonal to each other. The Z axis faces the vertical direction.

As shown in FIG. 3(A), the dissolver 31 has a frame 311, a cylindrical member 321, a supply port 331, and a discharge port 341.

As shown in FIG. 3(B), the dissolver 31 is provided with a cylindrical member 321 inside a hollow frame 311, and has a sleeve structure. The inside of the dissolver 31 is divided by the cylindrical member 321 and has an internal space S1 formed inside the cylindrical member 321 and an internal space S2 formed between the frame body 311 and the cylindrical member 321.

The frame body 311 has an upper wall on the upper side in the Z-axis direction, a lower wall on the lower side in the Z-axis direction, and side walls that connect the upper wall and the lower wall and extend in the Z-axis direction.

The shape of the frame body 311 is typically a cylindrical shape, but is not limited to this, and can be any shape such as a triangular column shape and a rectangular column shape. The material constituting the frame body 311 is also not particularly limited, and can be arbitrarily selected from known synthetic resin or metal materials.

The inner diameter of the frame body 311 and the size (height) in the Z-axis direction are not particularly limited.

The supply port 331 is provided on the lower wall of the frame body 311.

The supply port 331 is connected to the conveying unit 40, and fluid is supplied from the supply port 331.

The discharge port 341 is arranged close to the upper wall side of the side wall of the frame body 311.

The discharge port 341 is connected to the flow path P7, and the fluid is discharged from the discharge port 341 to the flow path P7. The fluid system discharged from the discharge port 341 is recovered to the outside from the flow path P7.

As shown in (A) in FIG. 3, the cylindrical member 321 is a cylindrical member whose lower end in the Z-axis direction is opened toward the supply port 331 of the dissolver 31. The upper end of the cylindrical member 321 is closed by being formed integrally with the upper wall of the frame body 311.

The inner diameter of the cylindrical member 321 and the size (height) in the Z-axis direction can be appropriately determined according to the size of the frame body 311. In addition, the shape of the cylindrical member 321 is typically a cylindrical shape, but it is not limited to this, and it may be any shape such as a rectangular shape. Furthermore, the cylindrical member 321 may be made of the same or different material as the frame body 311.

With the above configuration, the dissolver 31 functions as a collision type dissolver. As the dissolver 31, for example, a 0.8L type can be used for a small server.

The valve V3 is provided in the flow path P7. The valve V3 can be adjusted together with the valve V2 to adjust the pressure of the supply port 331 and the pressure of the discharge port 341.

(Transportation Department 40)

The transport unit 40 is connected to the hydrogen supply unit 10, the water supply unit 20, and the dissolving unit 30.

With this configuration, the hydrogen supply unit 10 can supply hydrogen to the dissolving unit 30 via the transport unit 40. In addition, the water supply unit 20 can supply water to the dissolving unit 30 via the transport unit 40.

(Control Unit 50)

The control unit 50 is connected to the hydrogen supply unit 10, the water supply unit 20 and the dissolving unit 30.

The control unit 50 controls the hydrogen supply unit 10, the water supply unit 20, and the dissolution unit 30.

For example, the control unit 50 adjusts the supply of hydrogen from the hydrogen supply unit 10 to the dissolving unit 30 by opening and closing the valve V1. In addition, the control unit 50 can prevent backflow of water from the transport unit 40 to the hydrogen supply unit 10 by opening and closing the valve V1.

In addition, the control unit 50 can control the amount of hydrogen generation and the hydrogen supply time by adjusting the applied voltage and applied current of the power source P. In addition, the control unit 50 can control the amount of hydrogen produced by adjusting the pressure delivery amount of the water of the first pump 12.

Furthermore, the control unit 50 can control the water supply amount by the valve V2. In addition, the control unit 50 may also control the water supply amount by adjusting the water pressure delivery amount of the second pump 22.

In addition, the control unit 50 can control the pressure of the supply port 331 and the pressure of the discharge port 341 through the valves V2 and V3.

In addition to this, the control unit 50 may also control the temperature or internal pressure of the water stored in the first tank 13 and the second tank 21.

[Method of producing hydrogen water]

FIG. 4 is a flowchart showing a hydrogen water production method using the hydrogen water production device 100. Hereinafter, a method of producing hydrogen water using the hydrogen water producing device 100 will be described in accordance with FIG. 4. With this hydrogen water production method, high-concentration hydrogen water can be obtained.

(Step S01: Water supply)

In step S01, the water supply unit 20 supplies water to the dissolving unit 30. Thereby, as shown in FIG. 5, the dissolver 31 is filled with water.

In more detail, first, water is supplied to the second tank 21. At this time, by installing a filter F2 on the water supply port 21a of the second tank 21, the water supplied to the second tank 21 is filtered to remove impurities, ozone, etc. contained in the water.

In addition, in step S01, water purified using a filter with a filter mesh F2 may be supplied to the second tank 21. In step S02 described later, the same applies when water is supplied to the first tank 13.

For example, in order to obtain purified water, the following water purifiers can also be used to purify tap water. The above-mentioned water purifiers are equipped with an activated carbon filter (MATRIKX of KX Technologies in the United States) and a reverse osmosis membrane filter (FILMTEC of Dow-Chemical). Filter membrane.

The water supplied to the second tank 21 is typically tap water, but is not limited to this, and may also be degassed water, distilled water, pure water or ultrapure water, mineral water, or the like. In addition, the water temperature of the water supplied to the second tank 21 is preferably 20°C or less, for example. In step S02 described later, the same applies when water is supplied to the first tank 13.

Then, the second pump 22 sucks the water in the second tank 21 and pressure-feeds the sucked water.

The water pressure-fed from the second pump 22 is transferred to the dissolver 31 by closing the valve V1 and opening the valve V2. Thereby, the dissolver 31 is filled with water. In addition, the valve V3 is released to atmospheric pressure.

(Step S02: Hydrogen supply)

In step S02, the hydrogen supply unit 10 supplies hydrogen to the dissolver 31 filled with water in step S01.

The hydrogen from the hydrogen supply unit 10 is supplied to the dissolver 31 via the transport unit 40 by closing the valve V2 and opening the valve V1. The hydrogen supply amount is set to, for example, 20 ml/min to 100 ml/min. The time for supplying hydrogen is, for example, 5 seconds to 30 seconds.

The hydrogen supplied to the dissolver 31 flows into the frame body 311 from the supply port 331, and flows from the open lower end of the cylindrical member 321 into the internal space S1. Then, the hydrogen flows along the cylindrical member 321 from the lower side to the upper side in the Z-axis direction. As a result, hydrogen is stored on the upper side of the Z-axis direction of the internal space S1, and hydrogen storage X is formed as shown in FIG. 6.

(Step S03: Mixture supply)

In step S03, a mixture of hydrogen and water is supplied to the dissolver 31 in which the hydrogen storage X is formed in step S02.

In more detail, first, by opening the valves V1 and V2, hydrogen and water are respectively supplied to the conveying unit 40.

Then, hydrogen and water are mixed in the conveyance part 40, and a mixture is formed. In this mixture, hydrogen is mixed with water in the form of fine bubbles. In addition, in this mixed gas, fine bubbles (hydrogen) are pressurized during the transportation process, and a small amount of them are dissolved in water.

When the volume of the mixture is set to 100%, the hydrogen concentration of the mixture is, for example, 4 vol% to 20 vol%. The above-mentioned hydrogen concentration is adjusted by the balance of the water supply amount and the hydrogen supply amount. For example, the water supply amount can be set to 0.2L/min to 2.0L/min, and the hydrogen supply amount can be set to 20ml/min to 100ml/min.

Then, the mixture formed in the conveying unit 40 is supplied to the dissolver 31.

In order to supply the mixture to the dissolving part 30, the pressure of the supply port 331 is set to be greater than the pressure of the discharge port 341.

For example, it is preferable to adjust so that the pressure of the supply port 331 is 0.2 MPa or more and 0.35 MPa or less, and the pressure of the discharge port 341 is 0.1 MPa or more and 0.25 MPa or less (wherein, the pressure of the supply port 331> the pressure of the discharge port 341) .

In order to adjust the pressure of the supply port 331 and the pressure of the discharge port 341, it can be achieved not only by adjusting the valves V2, V3, but also by adjusting the inner diameter of the flow path P7 or the conveying part 40, for example. In addition, it is also possible to adjust the pressure of the discharge port 341 by inserting a thin tube, a static mixer, or the like in the flow path P7. At this time, the valves V2 and V3 can also be solenoid valves that can open and close the flow paths P6 and P7.

FIG. 7 is a diagram showing a state where the mixed body in the dissolver 31 is being stirred. Furthermore, the thick arrow shown in FIG. 7 schematically represents the trajectory of the mixed body flowing in the dissolver 31.

As the mixture flows inside the dissolver 31, the fine bubbles of hydrogen in the mixture are dissolved in water.

Specifically, the mixture flows in the flow path formed by the cylindrical member 321. As shown in FIG. 7, it is supplied from the supply port 331 and flows into the internal space S1, after ascending upward in the Z-axis direction, it is folded back near the upper end of the cylindrical member 321 and flows downward in the Z-axis direction. Then, the mixture is folded back near the lower end of the cylindrical member 321, flows into the internal space S2, rises to the upper side in the Z-axis direction, and is discharged from the discharge port 341. In this way, the mixture repeatedly collides with the frame body 311 or the cylindrical member 321 during the complicated flow in the collision type dissolver 31, and is thereby stirred, and the fine hydrogen bubbles in the mixture are dissolved in water.

In addition, the mixed body is in contact with the hydrogen storage X in the process of flowing inside the dissolver 31, so that the hydrogen in the hydrogen storage X is dissolved in the mixed body.

Specifically, as shown in FIG. 7, the mixture flows toward the upper side in the Z-axis direction in the internal space S1 of the dissolver 31 and contacts the hydrogen storage X. At this time, the partial pressure of dissolved oxygen or dissolved nitrogen in the water becomes smaller, and the dissolved oxygen or dissolved nitrogen is released to the hydrogen storage X. It can be considered that at the same time, hydrogen in the hydrogen storage X containing a high concentration of hydrogen diffuses into the mixture, and the hydrogen in the hydrogen storage X dissolves in the mixture. Thereby, hydrogen water in which hydrogen is dissolved in a high concentration can be obtained.

As described above, in the above-mentioned hydrogen water production method, in addition to the hydrogen dissolving effect obtained by the collision type dissolver, the hydrogen dissolving effect obtained by the hydrogen storage X can also be obtained. Thereby, high-concentration hydrogen water of 1.6 ppm to 2.0 ppm can be obtained by using the above-mentioned method for producing hydrogen water.

Especially in the case of a small server, the amount of hydrogen that can be supplied is limited, so the hydrogen concentration gradually increases from the beginning of the production of hydrogen water until it takes time to reach a certain concentration.

On the other hand, in the method of producing hydrogen water of this embodiment, the hydrogen concentration reaches a certain concentration in a short time.

For example, for hydrogen water produced without the formation of hydrogen storage X, the hydrogen concentration after one minute is about 50% lower than the hydrogen concentration after three minutes. In contrast, for the hydrogen water produced by the hydrogen water production method of this embodiment, the hydrogen concentration after one minute is about 18% lower than the hydrogen concentration after three minutes, and the reduction in the hydrogen concentration is suppressed.

In addition, in the method for producing hydrogen water of the present embodiment, in the stage before the hydrogen concentration reaches a certain concentration, if hydrogen storage X is formed, high-concentration hydrogen water can be obtained. However, it is preferable to maintain the hydrogen storage X without disappearing after the hydrogen concentration reaches a certain concentration. In this way, after the hydrogen concentration reaches a certain concentration, the effect of increasing the hydrogen concentration obtained by the hydrogen storage X is also maintained. By adjusting the hydrogen supply amount and the water supply amount, the state of storing hydrogen can be maintained, and the hydrogen storage X can be maintained without disappearing.

[Other embodiments]

As mentioned above, the embodiment of the present invention has been described, but the present invention is not limited to the above-mentioned embodiment, of course, various modifications can be made.

For example, the dissolving part 30 of the above-mentioned embodiment is not limited to this, and the structure of the dissolver 31 can be variously changed.

As an example, the shape of the cylindrical member 321 of the dissolver 31 of the above embodiment is a cylindrical shape with one end closed as shown in FIG. 3, but it is not limited to this, and may be a simple concave shape. That is, the cylindrical member 321 only needs to have a configuration having a recessed portion that opens toward the supply port 331 so as to store hydrogen, and the shape of the recessed portion may be U-shaped, V-shaped, or the like.

In addition, the dissolving part 30 of the above-mentioned embodiment has a configuration with one dissolver 31, but it is not limited to this, and it may also be a configuration with two or more dissolvers 31, or it may further have a dissolver different from the dissolver 31. The composition. As a dissolver different from the dissolver 31, a static fluid mixing dissolver such as a static mixer, an impact dissolver, a vortex mode, a jet dissolver, a pressure dissolving dissolver, or a cavitation dissolver may be used.

In addition, the first tank 13 of the hydrogen supply unit 10 of the above-mentioned embodiment may be configured in common with the second tank 21. At this time, a valve for supplying water to the hydrogen supply unit 10 from a common tank may be appropriately provided.

10‧‧‧Hydrogen Supply Department

11‧‧‧Water Electrolysis Unit

12‧‧‧First pump

13‧‧‧The first box

13a, 21a‧‧‧Water supply port

13b‧‧‧Oxygen outlet

20‧‧‧Water Supply Department

21‧‧‧The second box

22‧‧‧Second pump

30‧‧‧Dissolution Department

31‧‧‧Dissolver

40‧‧‧Transportation Department

50‧‧‧Control Department

100‧‧‧Hydrogen Water Manufacturing Device

F1, F2‧‧‧Filter

P1, P2, P3, P4, P5, P6, P7‧‧‧Flow path

V1, V2, V3‧‧‧Valve

Claims (4)

An apparatus for producing hydrogen water is provided with: a dissolving part having: a frame body with a supply port and a discharge port; and a recessed part arranged in the frame body and open toward the supply port; the water supply part can be from the supply port Supply water into the frame; a hydrogen supply unit that can supply hydrogen to the frame from the supply port; and a control unit that controls the water supply unit and the hydrogen supply unit to supply hydrogen to the frame filled with water After accumulating hydrogen in the recessed portion, a mixture of water and hydrogen is supplied into the housing. The apparatus for producing hydrogen water according to claim 1, wherein the control unit supplies the mixture into the housing while maintaining a state in which hydrogen is stored in the recessed portion. A method for producing hydrogen water is to supply water from a supply port of a dissolver to fill the frame of the dissolver with water. The dissolver has: the frame is formed with the supply port and the discharge port; and a recessed portion , Arranged in the frame and open to the supply port; supply hydrogen from the supply port to the frame filled with water, thereby accumulating hydrogen in the recess; after accumulating hydrogen in the recess, The supply port supplies a mixture of water and hydrogen to the frame, while recovering hydrogen water from the discharge port. The method for producing hydrogen water as recited in claim 3, wherein the mixture is supplied into the housing while maintaining the state in which hydrogen is stored in the recess.

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