JP2017087168A - Hydrogen-containing water generator and method for generating hydrogen-containing water - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce easily and quickly hydrogen-containing water containing hydrogen in high concentration.SOLUTION: In a hydrogen-containing water production device including an electrolytic tank (11) for producing hydrogen gas by subjecting electrolytic solution to electrolytic treatment, a dissolver (21) for dissolving hydrogen gas into water, and a vent pipe (31) for connecting a gas phase part in the electrolytic tank (11) to a gas phase part in the dissolver (21), hydrogen gas is dissolved into water in the dissolver (21) by raising a pressure in the dissolver (21) by hydrogen gas produced in the electrolytic tank (11).SELECTED DRAWING: Figure 1

Description

  The present invention relates to a hydrogen-containing water generating device that generates hydrogen-containing water and a method for generating hydrogen-containing water. In the present specification, hydrogen water (hydrogen-dissolved water) in which hydrogen having a concentration lower than the saturation concentration is dissolved and hydrogen water containing hydrogen having a saturation concentration or more are collectively referred to as hydrogen-containing water.

  In recent years, the in vivo antioxidant effect of hydrogen has attracted attention, and it has been confirmed that the ingestion of hydrogen provides a health effect that improves obesity, arteriosclerosis, diabetes, atopic dermatitis, radiation damage, etc. without side effects. ing.

  Moreover, as a method for ingesting hydrogen, (i) a method of directly sucking hydrogen gas, (ii) a method of drinking hydrogen water in which hydrogen is dissolved, (iii) a method of absorbing from the skin in a hydrogen bath, etc. And (iv) a method of instilling physiological saline in which hydrogen is dissolved is known.

  Among these methods, the method of drinking hydrogen water is safer than the method of sucking hydrogen gas, and can easily ingest hydrogen in daily life. It is becoming popular.

  In the conventional hydrogen water generation facility, high-concentration and large-capacity hydrogen water is generated and stored in a storage tank, and the hydrogen water is taken out from the storage tank as necessary.

  In recent years, a technique for generating hydrogen water when it is needed has been developed instead of generating and storing hydrogen water in advance.

  For example, Patent Literature 1 includes a hydrogen gas generation device that extracts hydrogen gas from water under pressure control, and a gas supply path that connects the hydrogen gas generation device and a liquid container, and hydrogen generated by the hydrogen gas generation device. There is disclosed a hydrogen addition system that adds hydrogen to a liquid contained in a liquid container detachably connected to a gas supply path by variably controlling the gas pressure of the gas.

  Patent Document 2 discloses a technique in which a solid polymer type hydrogen generator is connected to a container such as a plastic bottle, and water contained in the container is electrolytically treated in a state where the container is sealed.

Japanese Patent No. 57105050 (published April 30, 2015) Japanese Unexamined Patent Publication No. 2015-131295 (released on July 23, 2015)

  By the way, the health effect of drinking hydrogen water is correlated with the amount of hydrogen intake and the frequency of intake, but the hydrogen water that has been sold by hydrogen water manufacturers has a relatively low dissolved concentration of hydrogen, so it has a health effect. Therefore, the user needs to ingest a large amount of hydrogen water. For example, in the case of hydrogen water having a hydrogen content of 0.8 ppm, it is said that the user needs to ingest about 1 L of hydrogen water per day.

  For this reason, drinking a large amount of hydrogen water is a heavy burden on the user, and a technique for providing high-concentration hydrogen water is required to reduce the burden on the user.

  However, the conventional technique has a problem that it is difficult to easily and quickly supply hydrogen-containing water containing hydrogen at a high concentration to a user.

  Specifically, in the method of storing the generated hydrogen water in the storage tank, the dissolved concentration of hydrogen decreases with time, and the hydrogen pressure in the storage tank decreases each time the hydrogen water is taken out. Then, since the dissolved concentration of hydrogen is lowered, it is difficult to maintain the hydrogen water in the storage tank at a high concentration.

  Moreover, in the technique of the above-mentioned Patent Document 1, since the liquid container is connected to the hydrogen gas generator through a coupler disposed at the tip of the hydrogen gas supply tube, it is necessary to prepare a dedicated liquid container that matches the coupler. There is a concern that when the screw part of the coupler is repeatedly attached and detached, the attachment part is deteriorated and the hydrogen gradually leaks because it cannot withstand high pressure, so the user cannot easily obtain hydrogen water. It was.

  In the technique of Patent Document 2, a membrane electrode assembly (MEA) is used as an electrode portion for electrolytic treatment of water. However, when the membrane electrode assembly is dried, electrolytic performance is extremely lowered. In order to maintain electrolytic performance, it is necessary to always immerse in water. For this reason, the operation | work for always immersing an electrode part in water has become a burden for the user.

  Moreover, in the technique of patent document 2, since the electrode part which consists of a membrane electrode assembly is the structure which touches the hydrogen water produced | generated as drinking water directly, the mechanical structure which contains an electrode part in the produced | generated hydrogen water There was a problem that the flavor of hydrogen water was lowered by direct contact. In the technique of Patent Document 2, the membrane electrode assembly has a higher electrolytic performance when the membrane is thinner, but the pressure resistance reliability decreases as the membrane becomes thinner. There is also a problem that it is necessary to consider the problem of pressure resistance of the film.

  The present invention has been made in view of these problems, and an object of the present invention is to provide a hydrogen-containing water generator and a hydrogen-containing water generator that can easily and quickly generate hydrogen-containing water containing hydrogen at a high concentration. It is to provide a method for producing water.

  The hydrogen-containing water generating apparatus according to one aspect of the present invention includes an electrolytic tank that electrolyzes an electrolytic solution to generate hydrogen gas, a dissolution tank that dissolves hydrogen gas in water, a gas phase portion of the electrolytic tank, and the A vent pipe connecting the gas phase part of the dissolution tank, and by increasing the pressure in the dissolution tank with hydrogen gas generated in the electrolytic tank, the hydrogen gas is dissolved in water in the dissolution tank It is characterized by.

  According to said structure, the hydrogen containing water which contains hydrogen in high concentration can be produced | generated easily and quickly.

It is explanatory drawing which shows schematic structure of the hydrogen containing water production | generation apparatus concerning Embodiment 1 of this invention. It is explanatory drawing which shows the structure of the electrolysis apparatus with which the hydrogen-containing water production | generation apparatus shown in FIG. 1 is equipped. It is explanatory drawing which shows the structure of the control system of the hydrogen containing water production | generation apparatus shown in FIG. It is a flowchart which shows the flow of the process in the hydrogen containing water production | generation apparatus shown in FIG. It is explanatory drawing which shows operation | movement of each part in the hydrogen containing water production | generation apparatus shown in FIG. It is a graph which shows the result of the experiment conducted in order to investigate the relationship between the presence or absence of stirring, and the melt | dissolution characteristic of hydrogen. It is a graph which shows the result of the experiment conducted in order to investigate the relationship between the hydrogen substitution of the gaseous-phase part in a dissolution tank, and the hydrogen concentration of the hydrogen-containing water produced | generated. It is a figure which shows the result of the experiment conducted in order to investigate the relationship between the pressure of the dissolution tank at the time of stirring start, and the hydrogen concentration of the hydrogen containing water produced | generated, (a) is the pressure of the dissolution tank at the time of stirring start, stirring The pressure of the dissolution tank at the end and the hydrogen concentration of the generated hydrogen-containing water are shown. (B) shows the relationship between the pressure of the dissolution tank at the start of stirring and the hydrogen concentration of the generated hydrogen-containing water. ing. It is a figure which shows the result of the experiment conducted in order to investigate the relationship between hydrogen partial pressure and the hydrogen concentration of produced | generated hydrogen-containing water, (a) is a total gas amount / water amount (mixing of hydrogen and oxygen with respect to the amount of tap water) The gas volume ratio) and the hydrogen concentration of the produced hydrogen-containing water are shown, and (b) shows the relationship between the molar fraction of hydrogen gas and the hydrogen concentration of the produced hydrogen-containing water. (A) is explanatory drawing which shows operation | movement of each part in the hydrogen-containing water production | generation apparatus concerning Embodiment 2 of this invention, (b) is explanatory drawing which shows the modification. It is explanatory drawing which shows schematic structure of the hydrogen containing water production | generation apparatus concerning Embodiment 3 of this invention. It is explanatory drawing which shows the structure of the control system of the hydrogen containing water production | generation apparatus shown in FIG. It is explanatory drawing which shows operation | movement of each part in the hydrogen containing water production | generation apparatus shown in FIG. It is explanatory drawing which shows schematic structure of the hydrogen containing water production | generation apparatus concerning Embodiment 4 of this invention. It is explanatory drawing which shows schematic structure of the hydrogen containing water production | generation apparatus concerning Embodiment 5 of this invention. It is explanatory drawing which shows schematic structure of the hydrogen containing water production | generation apparatus concerning Embodiment 6 of this invention. It is explanatory drawing which shows the structure of the control system of the hydrogen containing water production | generation apparatus shown in FIG. It is explanatory drawing which shows schematic structure of the hydrogen containing water production | generation apparatus concerning Embodiment 7 of this invention. It is explanatory drawing which shows the structure of the control system of the hydrogen containing water production | generation apparatus shown in FIG.

Embodiment 1
An embodiment of the present invention will be described.

(1-1. Configuration of the hydrogen-containing water generator 1)
FIG. 1 is an explanatory diagram showing a schematic configuration of a hydrogen-containing water generating apparatus 1 according to the present embodiment. As shown in this figure, the hydrogen-containing water generator 1 includes an electrolysis unit 10 and a dissolution unit 20.

  The electrolysis unit 10 includes an electrolyzer 11 and an electrolyzer 12 for storing an electrolyte solution. The electrolytic cell 11 is provided with an introduction port for introducing the electrolytic solution into the electrolytic cell 11 and a discharge port for discharging the electrolytic solution in the electrolytic cell 11. Illustration of the inlet and outlet is omitted. The electrolytic solution stored in the electrolytic cell 11 is not particularly limited as long as it is a liquid that generates hydrogen by electrolytic treatment. For example, tap water or pure water may be used.

  FIG. 2 is an explanatory diagram showing the configuration of the electrolysis apparatus 12. As shown in this figure, in this embodiment, the electrolysis apparatus 12 includes an ion exchange membrane 51, a catalyst layer 52, a catalyst layer 53, a negative electrode (electrode) 54, a positive electrode (electrode) 55, and a power supply unit 56. A solid polymer electrolytic device is used.

  As the ion exchange membrane 51, for example, a fluorine-based proton exchange membrane is used. Alternatively, it may be a membrane having an ion exchange function made of a material other than a fluorine-based proton exchange membrane, such as a hydrocarbon-based cation exchange membrane or an anion exchange membrane.

  The catalyst layer 52 and the catalyst layer 53 are made of a catalyst such as Pt (platinum) coated on the surface of the ion exchange membrane 51. A gas diffusion layer (water repellent treated carbon paper or the like) may be further provided on the outer layer of the catalyst layer 52 or the catalyst layer 53. Further, the catalyst layer 52 or the catalyst layer 53 may not be provided.

The negative electrode 54 and the positive electrode 55 are made of, for example, a Pt plating electrode obtained by plating punched Ti (titanium) or network Ti with Pt (platinum). Alternatively, the positive electrodes 54 and 55 may be plated with a compound having an electrocatalytic action made of Ir (iridium), Ta (tantalum), Ru (ruthenium), or the like instead of or in addition to Pt.
The negative electrode 54 is disposed in contact with or adhered to the catalyst layer 52, and the positive electrode 55 is disposed in contact with or adhered to the catalyst layer 53.

  Thus, a membrane electrode assembly (MEA) is formed by the ion exchange membrane 51, the catalyst layers 52 and 53, the negative electrode 54, and the positive electrode 55. That is, the solid polymer electrolytic device according to this embodiment includes an MEA configured such that a catalyst layer or an electrode is integrated on both surfaces of an ion conductive polymer film.

  The negative electrode 54 is disposed in contact with the electrolytic solution in the electrolytic cell 11, and the positive electrode 55 is exposed to the external space of the electrolytic cell 11. The outside of the electrolytic cell 11 may be air or may be filled with water or the like.

  The power supply unit 56 is a DC power supply, and a minus terminal is connected to the negative electrode 54 and a plus terminal is connected to the positive electrode 55. Oxygen is generated outside the electrolytic cell 11 by applying a negative potential to the negative electrode 54 disposed in the electrolytic cell 11 from the power source 56 and a positive potential to the positive electrode 55 disposed outside the electrolytic cell 11. Then, high purity hydrogen is generated in the electrolytic cell 11.

  In addition, the polarity of the voltage applied from the power supply unit 56 to the negative electrode 54 and the positive electrode 55 can be reversed, and a positive potential is applied to the negative electrode 54 and a negative potential is applied to the positive electrode 55 at the time of maintenance. The ion component adsorbed on the film 51 may be removed. In addition, you may make it remove the ion component adsorb | sucked by the ion exchange membrane 51 using acidic water or hot water.

  When the electrolysis or maintenance operation is not performed, the electrolysis control unit 61 controls the voltage generated between the positive electrode 55 and the negative electrode 54 so that water is naturally generated from hydrogen dissolved in the electrolyte and oxygen in the air. You may make it suppress the reverse reaction which generate | occur | produces.

  In the present embodiment, the configuration in which the negative electrode 54 is disposed in the electrolytic cell 11 that stores the electrolytic solution and the positive electrode 55 is exposed to the outside of the electrolytic cell 11 has been described, but the configuration is not limited thereto. It is sufficient that either the positive electrode 55 or the negative electrode 54 is in contact with the electrolytic solution, the positive electrode 55 is disposed in the electrolytic cell 11, and the negative electrode is exposed to the outside of the electrolytic cell 11. Hydrogen generated outside the tank 11 may be collected and connected to the dissolution unit 20. Further, both the positive electrode 55 and the negative electrode 54 may be disposed in the electrolytic cell 11.

  The ceiling surface 13 of the electrolytic cell 11 is an inclined surface inclined upward from the peripheral edge toward the center, and is generated by the electrolysis unit 10 at the center of the ceiling surface 13, that is, the top of the inclined surface. A vent pipe 31 for supplying hydrogen to the melting part 20 is connected. As a result, the hydrogen gas generated in the electrolysis unit 10 accumulates near the top of the ceiling surface 13 of the electrolytic cell 11 and is supplied to the dissolution unit 20 through the vent pipe 31. In the present embodiment, the top of the inclined surface of the ceiling surface 13 is the center of the ceiling surface 13. However, the present invention is not limited to this, and an arbitrary part of the ceiling surface 13 is defined as the top, toward the top. The ceiling surface 13 may be inclined upward, and the ventilation pipe 31 may be connected near the top.

  The inner diameter of the vent pipe 31 reduces the volume of the space in which the hydrogen gas generated in the electrolysis unit 10 is present, and inhibits the passage of water and the electrolyte between the electrolytic tank 11 and the dissolution tank 21. It is preferable to make it as thin as possible. However, if water drops have entered the vent pipe 31, if the vent pipe 31 is too thin, the vent pipe 31 may be clogged with water drops and hydrogen gas may not be allowed to pass therethrough. For this reason, it is preferable to make the inner diameter of the vent pipe 31 as thin as possible within a range that does not hinder the passage of hydrogen gas even when water droplets enter.

  The electrolytic solution is stored only up to a position below the portion of the electrolytic cell 11 to which the vent pipe 31 is connected, and the vicinity of the top of the ceiling surface 13 and the vent pipe 31 in the electrolytic cell 11 are always in the gas phase. It is designed to be maintained in a state.

  If the volume of the gas phase part in the electrolytic cell 11 is large, the rate of increase in the pressure of the gas phase part of the electrolytic cell 11, the vent pipe 31, and the gas phase part of the dissolution unit 20 due to the hydrogen gas generated in the electrolysis unit 10. Decreases. For this reason, it is preferable to make the volume of the gas phase part of the electrolytic cell 11 as small as possible within a range in which the electrolytic solution in the electrolytic cell 11 can be prevented from flowing out to the vent pipe 31.

  Moreover, in order to reduce the amount of hydrogen dissolved in the electrolytic solution and improve the generation efficiency of hydrogen gas, it is preferable to reduce the capacity of the electrolytic cell 11 as much as possible within a range that does not hinder the electrolytic treatment. In addition, the consumption of the electrolyte solution by an electrolysis process is about 1 cc in the case of producing | generating 2 L of hydrogen containing water of 4-5 ppm, for example, and is very small.

  In addition, a water level sensor for detecting the water level of the electrolytic solution in the electrolytic cell 11 is provided, and the electrolytic solution is automatically filled in the electrolytic cell 11 when the water level of the electrolytic solution in the electrolytic cell 11 falls below a predetermined value. An electrolyte solution filling device (not shown) may be provided. A water storage tank may be provided above the electrolytic cell 11 and the electrolytic solution may be supplemented by gravity. Further, the electrolysis unit 10 may be provided with a discharge pipe for exchanging the electrolytic solution in the electrolytic cell 11.

  Further, an ion exchange resin filter or a reverse osmosis (RO) filter is provided in the introduction path for introducing the electrolytic solution into the electrolytic cell 11 to remove ions in the electrolytic solution. Good. Further, an activated carbon filter or the like may be provided on the introduction path for introducing the electrolytic solution into the electrolytic cell 11 to remove residual chlorine in the electrolytic solution.

  Further, the outer wall of the electrolytic cell 11 may be made of a transparent material so that the user can observe the state of the electrolytic treatment from the outside. Further, a heating means or a cooling means for controlling the temperature of the electrolytic solution may be provided in the electrolytic cell 11.

  The dissolution unit 20 includes a dissolution tank 21 that stores water to be hydrogen-containing water, a stirring unit 22 that stirs water stored in the dissolution tank 21 and a gas (hydrogen gas) in the upper part of the dissolution tank 21, and a stirring unit. And a motor 40 for rotationally driving the motor 22.

  The dissolution tank 21 includes a vent pipe 31 for supplying hydrogen gas from the electrolysis unit 10 to the dissolution tank 21, a water supply pipe 32 for supplying water into the dissolution tank 21, and an upper part of the dissolution tank 21 (gas phase And a water intake pipe 34 for the user to take in the hydrogen-containing water generated in the dissolution tank 21 from the dissolution tank 21.

  The vent pipe 31 and the exhaust pipe 33 are connected to the vicinity of the center of the ceiling surface of the dissolution tank 21 (near the intersection of the ceiling surface of the dissolution tank 21 and a straight line passing through the center of the rotating shaft 22a in the stirring section 22). In addition, the dissolution tank 21 is supplied with water only to a position below the connection portion between the vent pipe 31 and the exhaust pipe 33. Thereby, even when the liquid level of the water in the dissolution tank 21 becomes higher in the radial direction due to centrifugal force when the stirring unit 22 is driven to rotate, the water in the dissolution tank 21 is vented. 31 and the exhaust pipe 33 are not ejected, and the vent pipe 31, the upper part of the dissolution tank 21, and the exhaust pipe 33 are always maintained in a gas phase state. Therefore, in the present embodiment, the electrolytic solution in the electrolytic bath 11 is not mixed with the water in the dissolving bath 21, and the water in the dissolving bath 21 is not mixed with the electrolytic solution in the electrolytic bath 11.

  The exhaust pipe 33 is provided with an exhaust valve 38, and the gas in the gas phase portion of the dissolution tank 21 is discharged to the outside of the dissolution tank 21 by opening the exhaust pipe 33. In addition, the gas phase part of the electrolytic cell 11, the vent pipe 31, the gas phase part of the dissolution tank 21, and the exhaust pipe 33 are communicated with each other in the gas phase part, and the expanded gas is ramped in the water of the dissolution tank 21. You may discharge | emit from the exhaust pipe 33, without. Accordingly, the concentration of hydrogen dissolved in water is prevented from being reduced by the impact of the expansion gas, and water is mixed with hydrogen discharged from the exhaust pipe 33, or the water in the dissolution tank 21 is vented. Intrusion into 31 can be suppressed. In addition, a recess (not shown) that protrudes upward is provided around the connection portion of the vent pipe 31 on the ceiling surface of the dissolution tank 21, and the hydrogen gas supplied from the vent pipe 31 is stored in the recess, and the exhaust pipe 33 may be connected to reduce the volume of the gas phase part of the dissolution tank 21.

  The water supply pipe 32 is provided with a water supply pump 37 and a water supply valve 36, and the water supply pump 37 is connected to a water supply means (for example, a water tap, a water storage container, or a water storage tank) not shown. Thereby, water is supplied into the dissolution tank 21 by opening the water supply valve 36 and starting the water supply pump 37. Further, a water storage container or the like may be provided above the dissolution tank 21 without providing a water supply pump, and water may be supplied by gravity. In addition, a hollow fiber filter, an activated carbon filter, a reverse osmosis membrane (RO) filter, or the like may be provided in the water supply pipe 32 to supply purified water or degassed water to the dissolution tank 21. Further, ion-concentrated water may be supplied from the water supply pipe 32 to the dissolution tank 21. Alternatively, the purified water of the reverse osmosis membrane filter may be supplied to the electrolytic cell 11, and the ion-concentrated water that has not passed through the membrane may be supplied to the dissolution vessel 21. Moreover, you may provide the heating tank or the cooling means for controlling the temperature of the water used as hydrogen containing water in the dissolution tank 21. FIG. The saturation concentration increases as the water temperature decreases.

  The intake pipe 34 is connected to the liquid phase part of the dissolution tank 21, and the intake pipe 34 is provided with an intake valve 39. Thereby, the hydrogen-containing water in the dissolution tank 21 is discharged from the water intake pipe 34 by opening the water intake valve 39, and the user can take the hydrogen-containing water discharged from the water intake pipe 34 in an arbitrary container. There is no need to provide a mechanism for the user to attach and detach. The mechanism in which the user repeatedly attaches and detaches can be operated only at a low pressure because the attaching and detaching portion gradually deteriorates and cannot withstand high pressure. However, by providing the intake pipe 34 having the intake valve 39, the operation pressure is greatly increased. Can be increased. For example, it is possible to set the pressure to 5 to 9 atmospheres or more after complying with the upper limit by the laws and regulations concerning high pressure gas in each country.

  However, the dissolution tank 21 has a lid portion (upper surface portion) and a container portion (a cup-shaped container portion constituted by a bottom surface and a side surface) detachably connected via an O-ring or the like. The lid part may be removed from the container part and the inside may be cleaned. Further, a connecting tool (not shown) for injecting hydrogen-containing water into a predetermined container is attached to the tip of the intake pipe 34, and the hydrogen-containing water is injected into the container through this connecting tool. Good.

  The stirring unit 22 includes a rotating shaft 22a, a stirring blade 22b attached around the rotating shaft 22a, and a magnet coupling 41b attached to one end of the rotating shaft 22a. The rotating shaft 22a is arranged to extend in the vertical direction, and the other end of the rotating shaft 22a is rotatably supported by a bearing (not shown) arranged at the center of the ceiling surface of the dissolution tank 21. Has been.

  The stirring blade 22b is disposed so as to extend to both the water storage part (liquid phase part) of water stored in the dissolution tank 21 and the gas phase part on the water surface. The shape and the number of the stirring blades 22b are not particularly limited as long as the shape and the number can efficiently stir the water and gas in the dissolution tank 21.

  The motor 40 is disposed outside the dissolution tank 21, and the rotation shaft of the motor 40 is connected to a magnet coupling 41 a disposed to face the bottom wall (wall surface) of the dissolution tank 21. Further, the magnet coupling 41 b provided in the stirring unit 22 is disposed at a position facing the magnet coupling 41 a via the bottom wall (wall surface) of the dissolution tank 21.

  As a result, when the magnet coupling 41a is rotated by the rotational driving force of the motor 40, the rotational driving force is transmitted to the magnet coupling 41b by the magnetic force, and the stirring unit 22 rotates about the rotation shaft 22a. . That is, in the present embodiment, a floating fan that is rotationally driven in a non-contact manner with respect to the motor 40 and a member (magnet coupling 41a and the like) connected to the motor 40 is used as the stirring unit 22.

  In the present embodiment, the motor 40 is disposed below the dissolution tank 21 and the magnet couplings 41a and 41b are disposed so as to face each other with the bottom wall of the dissolution tank 21, but the present invention is not limited thereto. . For example, the motor 40 may be disposed on the side of the dissolution tank 21 and the magnet couplings 41a and 41b may be disposed so as to face each other through the side wall (wall surface) of the dissolution tank 21. Further, the motor 40 may be disposed above the dissolution tank 21 and the magnet couplings 41a and 41b may be disposed to face each other via the upper wall (wall surface) of the dissolution tank 21. Moreover, it is not restricted to the structure provided with only 1 set of the motor 40 and the stirring part 22, You may provide multiple sets.

  FIG. 3 is an explanatory diagram showing the configuration of the control system of the hydrogen-containing water generating apparatus 1. As shown in this figure, in addition to the electrolysis unit 10 and the dissolution unit 20, the hydrogen-containing water generation device 1 controls the operation of each unit of the hydrogen-containing water generation device 1, and inputs an instruction from the user. An operation input unit 70 that receives and transmits the operation input to the control unit 60 is provided.

  The control unit 60 includes an electrolysis control unit 61 and a dissolution control unit 62, and the dissolution control unit 62 includes a water supply control unit 63, a water intake control unit 64, an exhaust control unit 65, and an agitation control unit 66.

  The control unit 60 may be realized by a logic circuit (hardware) formed on an integrated circuit (IC chip) or the like, or may be realized by software using a CPU (Central Processing Unit). In the latter case, the control unit 60 includes a CPU that executes instructions of a program that is software for realizing each function, a ROM (Read Only Memory) in which the program and various data are recorded so as to be readable by a computer (or CPU), or A storage device (these are referred to as “recording media”), a RAM (Random Access Memory) that expands the program, and the like are provided. And the function of the hydrogen-containing water production | generation apparatus 1 is implement | achieved when a computer (or CPU) reads the said program from the said recording medium and performs it.

  The electrolysis control unit 61 controls the operation of the electrolysis apparatus 12, that is, application of voltage to the positive electrode 55 and the negative electrode 54.

  The water supply control unit 63 controls the operation of the water supply pump 37 and the water supply valve 36, the water intake control unit 64 controls the operation of the water intake valve 39, the exhaust control unit 65 controls the operation of the exhaust valve 38, and the stirring control unit 66. Controls the operation of the motor 40. In the present embodiment, electromagnetic valves are used as the water supply valve 36, the water intake valve 39, and the exhaust valve 38, and the water supply control unit 63, the water intake control unit 64, and the exhaust control unit 65 perform operations of the respective electromagnetic valves. Control to open and close.

  The configuration of the operation input unit 70 is not particularly limited as long as it has a function of receiving an instruction from the user and transmitting the instruction to the control unit 60. For example, the operation input unit 70 may include a key operation button. Or a combination thereof.

(1-2. Operation of the hydrogen-containing water generator 1)
FIG. 4 is a flowchart showing the flow of processing in the hydrogen-containing water generating apparatus 1, and FIG. 5 is an explanatory diagram showing the operation of each part in the hydrogen-containing water generating apparatus 1.

  When an instruction to generate hydrogen-containing water is issued from the user via the operation input unit 70, first, the water supply control unit 63 opens the water supply valve 36 (OPEN), activates the water supply pump 37 (ON), and enters the dissolution tank 21. Water is supplied (S1, water supply process). In this state, the exhaust valve 38 is opened (OPEN), the intake valve 39 is closed (CLOSE), and the electrolyzer 12 and the motor 40 are stopped (OFF).

  When water is supplied to the dissolution tank 21 to a predetermined water level in S1, the water supply control unit 63 stops the water supply pump 37, closes the water supply valve 36, and ends the water supply process. Note that a water level sensor may be provided in the dissolution tank 21, and the water supply control unit 63 may determine whether or not the dissolution tank 21 has been supplied to a predetermined water level according to the detection result of the water level sensor. Water supply may be performed until the water level sensor detects a predetermined water level.

  Then, the electrolysis control unit 61 activates the electrolysis apparatus 12 to start generation of hydrogen gas, and the exhaust control unit 65 opens the exhaust valve 38, whereby the vent pipe 31, the gas phase part of the dissolution tank 21, and the exhaust gas The air in the pipe 33 is replaced with hydrogen gas generated by the electrolysis device 12 (S2, replacement step). In order to improve safety, it is preferable that oxygen in the gas phase is discharged to have an oxygen mixed concentration that does not react with hydrogen gas even when energy is artificially applied.

  Whether or not the replacement of the vent pipe 31, the gas phase portion of the dissolution tank 21, and the exhaust pipe 33 with hydrogen gas is completed may be determined according to the processing time after the replacement process is started, for example. Alternatively, the determination may be made by detecting the hydrogen gas concentration in the dissolution tank 21 or the composition of the exhaust from the exhaust pipe 33.

  When the replacement of the vent pipe 31, the gas phase part of the dissolution tank 21 and the hydrogen gas of the exhaust pipe 33 with hydrogen gas is completed in S2, the exhaust control part 65 closes the exhaust valve 38, and the electrolysis control part 61 causes the hydrogen generated by the electrolyzer 12 to flow. By continuing the generation of the gas, the pressures of the vent pipe 31, the gas phase portion of the dissolution tank 21, and the exhaust pipe 33 are increased to a predetermined pressure (S3, pressure increasing process). In this embodiment, the pressure of the vent pipe 31, the gas phase part of the dissolution tank 21, and the exhaust pipe 33 is increased to 5 atm by this pressure increasing process.

  In S3, when the pressures of the gas pipe 31 and the gas phase part of the dissolution tank 21 and the exhaust pipe 33 are increased to a predetermined pressure, the agitation controller 66 drives the motor 40 to rotate the agitation part 22 to rotate the dissolution tank 21. The water and gas (hydrogen gas) inside are stirred (S4, stirring step). Thereby, hydrogen gas melt | dissolves in the water in the dissolution tank 21, and high concentration hydrogen containing water is produced | generated.

  Note that whether the pressure in the vent pipe 31, the gas phase portion of the dissolution tank 21, and the exhaust pipe 33 has been increased to a predetermined pressure is, for example, the electrolytic cell 11, the dissolution tank 21, Or you may make it judge based on the detection result by providing the pressure sensor (not shown) arrange | positioned in either of each pipe | tube 31, 32, 33, 34 connected to them. At this time, since there is a correlation between the pressure in the dissolution tank 21 and the hydrogen concentration of the generated hydrogen-containing water, the predetermined pressure is appropriately set so as to obtain hydrogen-containing water having a desired hydrogen concentration. That's fine.

  It should be noted that an estimated value of the pressure increase rate calculated from the hydrogen generation rate may be compared with an actual measurement value of the pressure sensor to determine abnormality such as leakage.

  Moreover, you may provide the pressure valve which a valve opens by the set pressure or more. In addition, it is preferable to provide a pressure sensor or a pressure valve in the gas phase part of the electrolytic cell 11 or its vicinity.

  In addition, the start timing of the stirring process is not limited to the configuration that is determined based on the detection result of the pressure sensor. The stirring process may be started when the time reaches a predetermined time.

  In the present embodiment, the stirring step is started after the pressurizing step. However, the present invention is not limited to this, and the pressurizing step and the stirring step may be performed in parallel.

  Thereafter, when a predetermined time has elapsed since the start of the stirring step, the electrolysis control unit 61 stops the electrolysis apparatus 12, the stirring control unit 66 stops the motor 40, and the exhaust control unit 65 opens the exhaust valve 38. Then, the pressure in the dissolution tank 21 is reduced to normal pressure (S5, pressure reduction step). The exhaust control unit 65 may control the pressure reduction speed of the dissolution tank 21 by adjusting the friction loss or opening of the exhaust valve 38. By this decompression step, cavitation can be generated in the hydrogen-containing water in the dissolution tank 21, and fine bubbles can be generated. Moreover, you may leave the electrolyzer 12 started in the pressure reduction process.

  In addition, the timing which transfers to the pressure reduction process from a stirring process provides the pressure sensor which detects the pressure in the dissolution tank 21, for example, and is the predetermined time after the time change rate of the pressure detected by a pressure sensor becomes below a predetermined value. When the time elapses, the stirring process may be terminated and the process may proceed to a pressure reducing process.

  When the pressure in the dissolution tank 21 is reduced to normal pressure, the water intake control unit 64 opens the intake valve 39 so that the hydrogen-containing water in the dissolution tank 21 is supplied to the container via the intake pipe 34. (S6, water intake step).

  In the present embodiment, the control unit 60 automatically performs the processes of the above steps. However, the present invention is not limited to this, and the user manually performs some or all of the steps. It may be.

(1-3. Experimental results)
(Experiment 1: Relationship between the presence or absence of stirring and the dissolution characteristics of hydrogen)
FIG. 6 is a graph showing the results of an experiment conducted for examining the relationship between the presence or absence of stirring and the dissolution characteristics of hydrogen.

  In this experiment, a dissolution tank 21 having a volume of 273 cc was used, and water was poured into the dissolution tank 21 so that the volume of the gas phase in the dissolution tank 21 was 11 cc (4% of the total). Then, a hydrogen cylinder was directly connected to the gas phase portion and the gas in the gas phase portion was replaced with hydrogen gas, and then the pressure in the gas phase portion was increased to 5 atm and maintained for a predetermined time. Then, about each of the case where stirring by the stirring part 22 was performed, and the case where stirring was not performed, after carrying out pressure reduction processing and taking water, the dissolved hydrogen concentration of water was measured.

  As shown in FIG. 6, when stirring by the stirring unit 22 is not performed, even if the pressure in the dissolution tank 21 is maintained at a high pressure (5 atm in this experiment) with hydrogen gas, Little dissolved in water.

  On the other hand, the pressure in the dissolution tank 21 was increased with hydrogen gas and maintained at a high pressure, and the stirring by the stirring unit 22 allowed hydrogen to be dissolved in water in a short time. The hydrogen concentration was 2.9 ppm at a holding time of 0.25 minutes, 3.5 ppm at 0.5 minutes, 4.5 ppm at 1 minute, and 4.8 ppm at 2 minutes. Thereafter, even if the holding time was extended. The hydrogen concentration hardly increased.

(Experiment 2: Relationship between hydrogen substitution in gas phase and hydrogen concentration)
FIG. 7 is a graph showing the results of an experiment conducted for examining the relationship between the hydrogen substitution in the gas phase portion in the dissolution tank 21 and the hydrogen concentration of the generated hydrogen-containing water.

In this experiment, first, replacement treatment with hydrogen gas in the gas phase portion of the dissolution tank 21 was performed under the following conditions (i) to (iv).
(I) A hydrogen cylinder was connected to the dissolution tank 21, and the gas phase portion of the dissolution tank 21 was completely replaced with hydrogen gas supplied from the hydrogen cylinder (see “ideal 100%” in FIG. 7).
(Ii) Electrolytic treatment is performed until hydrogen gas corresponding to the volume of the gas phase portion of the dissolution tank 21 is generated by the electrolysis apparatus 12 with the exhaust valve 38 opened, and the gas phase portion is generated with the hydrogen gas generated by the electrolysis treatment. (See “100% electrolysis” in FIG. 7).
(Iii) Hydrogen gas generated by the electrolytic treatment by performing electrolytic treatment until the hydrogen gas corresponding to 1/2 of the volume of the gas phase portion of the dissolution tank 21 is generated by the electrolysis apparatus 12 with the exhaust valve 38 opened. The gas phase portion was replaced with (see “Electrolysis 50%” in FIG. 7).
(Iv) The gas phase portion of the dissolution tank 21 was left as air without performing a replacement treatment with hydrogen gas (see “no replacement” in FIG. 7).

  Then, after performing the replacement process under the above conditions (i) to (iv), the exhaust valve 38, the water supply valve 36, and the water intake valve 39 are closed to seal the dissolution tank 21, and the electrolyzer 12 is driven at a constant current. (2.0 A), and the electrolytic treatment is continued until the gas phase portion of the dissolution tank 21 reaches 5.55 atm. Then, the stirring portion 22 is stirred for 40 seconds, the exhaust valve 38 is opened, and the pressure reduction treatment is performed. The water intake valve 39 was opened to take water, and the hydrogen concentration was measured. In addition, the experimental result of FIG. 7 has shown the average value of the result of having measured in multiple times each about said conditions (i)-(iv). In addition, after stirring by the stirring part 22, the pressure in the dissolution tank 21 before opening the exhaust valve 38 and starting the pressure reduction process is approximately 5.1 atm under any of the above conditions (i) to (iv). Met.

  As shown in FIG. 7, it was found that the hydrogen concentration of the produced hydrogen-containing water can be improved by replacing the gas phase portion of the dissolution tank 21 with hydrogen gas. However, 4.5 ppm of hydrogen-containing water could be generated even when the replacement with hydrogen gas was not performed.

(Experiment 3: Relationship between pressure in dissolution tank 21 and hydrogen concentration)
FIG. 8 shows the results of an experiment conducted to investigate the relationship between the pressure in the dissolution tank 21 at the start of stirring and the hydrogen concentration of the generated hydrogen-containing water, and (a) shows the dissolution tank 21 at the start of stirring. Is a table showing the pressure of the dissolution tank 21 at the end of stirring, and the hydrogen concentration of the generated hydrogen-containing water, (b) is the pressure of the dissolution tank 21 at the start of stirring and the hydrogen-containing water generated It is a graph which shows the relationship with hydrogen concentration.

  In this experiment, first, the electrolytic treatment is performed until hydrogen gas corresponding to the volume of the gas phase portion of the dissolution tank 21 is generated by the electrolysis apparatus 12 with the exhaust valve 38 opened, and the hydrogen gas generated by the electrolytic treatment is used. The gas phase was replaced. Thereafter, the exhaust valve 38, the water supply valve 36, and the water intake valve 39 are closed to seal the dissolution tank 21, and the electrolysis apparatus 12 is driven at a constant current (2.0 A), so that the gas phase portion of the dissolution tank 21 has a predetermined pressure (main) In the embodiment, the electrolytic treatment was continued until it reached 2.03 atm, 3.03 atm, 4.04 atm, 5.05 atm, and 5.55 atm. And after carrying out the electrolysis process until it became each said pressure, stirring by the stirring part 22 was performed for 40 second, the exhaust valve 38 was opened and pressure reduction processing was carried out, the water intake valve 39 was opened, water was taken, and the hydrogen concentration was measured. In addition, the hydrogen concentration shown to (a) and (b) of FIG. 8 measured the said pressure conditions in multiple times, respectively, and has shown the average value.

(Experiment 4: Relationship between hydrogen partial pressure and hydrogen concentration)
FIG. 9 shows the results of an experiment conducted to investigate the relationship between the hydrogen partial pressure and the hydrogen concentration of the produced hydrogen-containing water. (A) shows the total gas amount / water amount (hydrogen / oxygen relative to the amount of tap water). (B) is a graph showing the relationship between the molar fraction of hydrogen gas and the hydrogen concentration of the produced hydrogen-containing water. is there.

  In this experiment, water was put into a container with a capacity of 500 mL, hydrogen or a mixed gas of hydrogen and oxygen was injected from a cylinder into the gas phase part at atmospheric pressure, and the container was shaken by hand and stirred for 30 seconds. The hydrogen concentration was measured.

  As shown in FIG. 9 (a), when 100% hydrogen is injected into the gas phase portion and dissolved at normal pressure, the amount of hydrogen gas / water dissolved at saturation at normal pressure is 0.018 ml / ml. On the other hand, unless 0.087 ml / ml was supplied to the container, the saturation concentration at room temperature and normal pressure did not reach 1.6 ppm.

  In addition, when the total gas amount is increased by injecting a mixed gas of hydrogen and oxygen into the gas phase, the hydrogen concentration becomes saturated and constant, and even if the total gas amount is increased further, the hydrogen concentration does not increase. The lower the hydrogen gas fraction in the mixed gas, the lower the hydrogen concentration at saturation.

  In addition, the hydrogen concentration at saturation depends on the hydrogen mole fraction, but the relationship between the hydrogen mole fraction (mixing ratio of hydrogen gas in the mixed gas) and the hydrogen concentration is not proportional, and the hydrogen mole fraction is The lower the hydrogen concentration, the lower the hydrogen concentration.

(1-4. Summary of Embodiment 1)
As described above, in the present embodiment, the electrolytic tank 11 that generates hydrogen gas and the dissolution tank 21 that dissolves the hydrogen gas generated in the electrolytic tank 11 in water communicate with each other through the vent pipe 31. The vent pipe 31 is provided so as to connect the gas phase part in the electrolytic cell 11 and the gas phase part in the dissolution cell 21.

  Thereby, since it can prevent that the electrolyte solution in the electrolysis tank 11 and the water in the dissolution tank 21 are mixed, since the hydrogen containing water provided to a user does not contact the electrode part of the electrolysis apparatus 12 directly, It can prevent that the flavor of hydrogen-containing water falls.

  Moreover, since the state which stored the electrolyte solution in the electrolytic vessel 11 can be maintained for a long time, it is necessary for the user to perform the process for always immersing the electrode part of the electrolyzer 12 in water and completely drying it. Therefore, the work burden on the user can be reduced. In addition, by always immersing the electrode part in water, drying and deformation of the ion exchange membrane provided in the electrolysis device 12 can be prevented, so that a thinner membrane can be adopted as the ion exchange membrane. Thereby, since the hydrogen production voltage in the electrolyzer 12 can be reduced, safety can be improved and power consumption can be reduced.

  In the present embodiment, the pressure in the dissolution tank 21 is increased by the hydrogen gas generated in the electrolysis unit 10, and the water and hydrogen gas in the dissolution tank 21 are stirred by the stirring unit 22.

  As a result, the pressure in the dissolution tank 21 is increased to increase the saturation concentration of hydrogen from that at normal pressure, and the hydrogen concentration can be increased to a higher concentration efficiently in a short time under a state where the saturation concentration is increased by the increased pressure. Can be dissolved.

  In addition, if hydrogen-containing water is produced | generated at high pressure and the dissolution tank 21 is pressure-reduced, a part of hydrogen contained in hydrogen-containing water will escape. The decay rate of the hydrogen concentration at the time of depressurization has a value mainly depending on the pressure before the depressurization, but in any case, the hydrogen concentration at that time does not decrease to the saturation concentration (1.6 ppm) at normal pressure. For this reason, according to the hydrogen-containing water production | generation apparatus 1 concerning this embodiment, the high concentration hydrogen-containing water containing the hydrogen exceeding the saturation concentration in a normal pressure can be produced | generated.

  In order to provide the user with a higher concentration of hydrogen-containing water, it is preferable to increase the hydrogen partial pressure or the dissolved hydrogen concentration before decompression as much as possible.

  In the present embodiment, the pressure in the dissolution tank 21 is increased by the hydrogen gas generated in the electrolysis unit 10. For this reason, since the pump for raising the pressure in the dissolution tank 21 is unnecessary, the size of the hydrogen-containing water generating apparatus 1 can be reduced as compared with the configuration in which the pressure in the dissolution tank 21 is increased by a pump.

  Further, in the present embodiment, unlike a conventional configuration in which a large amount of hydrogen-containing water is stored in a storage tank, hydrogen-containing water is generated every time a user instructs generation of hydrogen-containing water. For this reason, it is not necessary to provide a water storage tank for storing a large amount of hydrogen-containing water, and it is only necessary to have a dissolution tank 21 corresponding to the amount of hydrogen-containing water supplied to the user. The size of the device 1 can be reduced. Moreover, it is possible to quickly and easily generate a necessary amount of high-concentration hydrogen-containing water on the spot, thereby reducing the work burden on the user.

  In the present embodiment, the gas phase portion in the dissolution tank 21 is replaced with hydrogen gas generated in the electrolysis unit 10, and the pressure is increased by the hydrogen gas generated in the electrolysis unit 10, and stirring is performed in the stirring unit 22. Hydrogen is dissolved in the water in the dissolution tank 21. Thereby, since hydrogen becomes an oxygen mixed concentration which does not react even if energy is given, safety can be secured. Moreover, since the hydrogen partial pressure can be increased by replacing the gas phase portion in the dissolution tank 21 with hydrogen gas, the hydrogen gas is efficiently dissolved in water to produce high-concentration hydrogen-containing water. it can.

[Embodiment 2]
Another embodiment of the present invention will be described. For convenience of explanation, the same members as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the first embodiment, the motor 40 is stopped in the replacement process of step S2.

  On the other hand, in the present embodiment, as shown in FIG. 10A, in the replacement process of step S2, the process of the replacement process is performed with the stirring control unit 66 driving the motor 40.

  Thereby, since oxygen contained in the water in the dissolution tank 21 can be degassed, the amount of oxygen in the dissolution tank 21 is reduced, and the hydrogen partial pressure can be increased with a smaller amount of hydrogen gas.

  Note that, as shown in FIG. 10B, the stirring control unit 66 may drive the motor 40 in the pressure increasing step of Step 3.

[Embodiment 3]
Still another embodiment of the present invention will be described. For convenience of explanation, the same members as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 11 is an explanatory diagram illustrating a schematic configuration of the hydrogen-containing water generating device 1 according to the present embodiment, and FIG. 12 is an explanatory diagram illustrating a configuration of a control system of the hydrogen-containing water generating device 1 according to the present embodiment. FIG. 13 is an explanatory diagram showing the operation of each part in the hydrogen-containing water generating apparatus 1 according to the present embodiment.

  As shown in FIGS. 11 and 12, the hydrogen-containing water generating apparatus 1 according to this embodiment has a communication path for connecting the electrolytic cell 11 and the dissolution vessel 21 in addition to the configuration shown in FIG. An intake valve 80 is provided in the vicinity of the dissolution tank 21 of the trachea 31, and the dissolution control unit 62 includes an intake control unit 67 that controls the operation of the intake valve 80. In this embodiment, an electromagnetic valve is used as the intake valve 80, and the intake control unit 67 controls the operation of the electromagnetic valve to open and close.

  As shown in FIG. 13, the intake control unit 67 keeps the intake valve 80 closed until the water supply process in step S1, and in the replacement process in step S2, the pressure increasing process in step S3, and the stirring process in step S4, the intake valve Open 80. Further, the intake valve 80 is closed in the pressure reducing step in step S5 and the water intake step in step S6.

  Thereby, since the capacity | capacitance of the area | region decompressed in a pressure reduction process can be reduced, a pressure reduction process can be performed rapidly.

  In addition, after the decompression step, the gas phase portion of the electrolytic cell 11 and the portion of the vent pipe 31 closer to the electrolytic cell 11 than the intake valve 80 are maintained in a state in which high-pressure hydrogen gas is enclosed, The dissolved hydrogen concentration in the electrolytic solution can be kept high. As a result, the amount of hydrogen gas to be generated in the next replacement step and boosting step can be reduced, and the replacement step and boosting step can be performed quickly.

[Embodiment 4]
Still another embodiment of the present invention will be described. For convenience of explanation, the same members as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 14 is an explanatory diagram showing a schematic configuration of the hydrogen-containing water generating device 1 according to the present embodiment. As shown in this figure, in addition to the configuration shown in FIG. 1, the hydrogen-containing water generating device 1 according to the present embodiment includes a hydrophobic filter 91 provided in the vicinity of the connection portion of the vent pipe 31 with the electrolytic cell 11. And a hydrophobic filter 92 provided in the vicinity of the connection portion between the vent pipe 31 and the dissolution tank 21.

  The hydrophobic filters 91 and 92 allow hydrogen gas to pass therethrough while blocking the passage of droplets. The material of the hydrophobic filters 91 and 92 is not particularly limited as long as it has a function of permeating hydrogen gas and blocking the passage of droplets. For example, a non-woven fabric made of Teflon (registered trademark) is used. Can be used.

  In the present embodiment, the hydrophobic filter is provided in both the vicinity of the connection portion of the vent pipe 31 with the electrolytic bath 11 and the vicinity of the connection portion of the vent pipe 31 with the dissolution bath 21, but not limited thereto. For example, you may provide only in either one. In addition, the installation position of the hydrophobic filter is not limited to the vicinity of the connection portion of the vent pipe 31 with the electrolytic bath 11 and the vicinity of the connection portion of the vent pipe 31 to the dissolution bath 21. Any position can be used as long as moisture can be prevented from flowing therethrough.

  In the present embodiment, the example in which the hydrophobic filters 91 and 92 are added to the configuration illustrated in FIG. 1 in the first embodiment has been described. However, the present invention is not limited to this, and may be combined with the configuration illustrated in the other embodiments. Good.

[Embodiment 5]
Still another embodiment of the present invention will be described. For convenience of explanation, the same members as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 15 is an explanatory diagram showing a schematic configuration of the hydrogen-containing water generating device 1 according to the present embodiment.

  In each of the above-described embodiments, the configuration in which the solid polymer electrolysis device 12 is used and the positive electrode 55 is exposed to the outside of the electrolytic cell 11 has been described.

  On the other hand, in this embodiment, as shown in FIG. 15, the electrolysis apparatus 12 having a configuration in which the positive electrode 55 and the negative electrode 54 are disposed to face each other through the diaphragm 57 in the electrolytic cell is used.

  The diaphragm 57 is arrange | positioned so that the electrolytic cell 11 may be divided | segmented into the negative electrode side electrolytic cell 11a and the positive electrode side electrolytic cell 11b. As the diaphragm 57, for example, a porous membrane, an electrolytic membrane, an ion exchange membrane or the like can be used. A pressure adjusting mechanism (not shown) may be provided to adjust the pressure difference between the negative electrode side electrolytic cell 11a and the positive electrode side electrolytic cell 11b.

  The negative electrode 54 is disposed to face the diaphragm 57 in the negative electrode side electrolytic cell 11a, and the positive electrode 55 is disposed to face the diaphragm 57 in the positive electrode side electrolytic cell 11b.

  An oxygen exhaust pipe 101 is connected to the ceiling surface of the positive electrode side electrolytic cell 11b, and an oxygen exhaust valve 102 is connected to the oxygen exhaust pipe 101. Accordingly, the electrolysis control unit 61 opens the oxygen discharge valve 102 as necessary, so that oxygen generated in the positive electrode side electrolytic cell 11 b is released to the outside of the electrolysis unit 10.

  Moreover, the ceiling surface 13 of the negative electrode side electrolytic cell 11a is an inclined surface inclined upward toward the center of the negative electrode side electrolytic cell 11a, and is formed at the center of the ceiling surface 13, that is, the top of the inclined surface. A vent pipe 31 for supplying the hydrogen generated in the electrolysis unit 10 to the dissolution unit 20 is connected.

  Examples of the electrolytic solution injected into the negative electrode side electrolytic cell 11a and the positive electrode side electrolytic cell 11b include (i) pure water, (ii) tap water, or (iii) K ions, phosphate ions, or carbonate ions. An electrolytic solution to which ions such as these are added can be used.

  With the above configuration, hydrogen-containing water can be generated as in the case of using a solid polymer electrolytic device.

  In addition, an ion elution device for adding ions to an electrolytic solution injection part (not shown) for injecting an electrolytic solution into the negative electrode side electrolytic cell 11a and the positive electrode side electrolytic cell 11b is installed, and ions are added to tap water. Minutes may be added.

[Embodiment 6]
Still another embodiment of the present invention will be described. For convenience of explanation, the same members as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 16 is an explanatory diagram illustrating a schematic configuration of the hydrogen-containing water generating device 1 according to the present embodiment, and FIG. 17 is an explanatory diagram illustrating a configuration of a control system of the hydrogen-containing water generating device 1.

  As shown in FIGS. 16 and 17, in addition to the configuration shown in FIG. 1, the hydrogen-containing water generating apparatus 1 according to this embodiment includes a water tank 110 (or a water tap), a water supply pipe 111, a concentration. A control valve 112 and a concentration control unit 68 are provided.

  The water tank 110 stores the same water as the water (water before dissolving hydrogen) injected into the dissolution tank 21. Note that the water stored in the water tank 110 is not necessarily the same as the water injected into the dissolution tank 21. Moreover, the water stored in the water tank 110 may be, for example, pure water, purified water, tap water, or the like.

  The water supply pipe 111 is connected to the water intake pipe 34. In the configuration shown in FIG. 16, the water supply pipe 111 is connected to the downstream side of the intake valve 39 in the intake pipe 34, but is not limited thereto, and is connected to the upstream side of the intake valve 39. Also good.

  The concentration control valve 112 is composed of, for example, an electromagnetic valve, and opens and closes according to an instruction from the concentration control unit 68.

  The concentration control unit 68 adjusts the opening of the concentration control valve 112 according to the target hydrogen concentration and the target hydrogen water amount input via the operation input unit 70, thereby connecting the intake pipe 34 and the water supply pipe 111. The mixing ratio of the hydrogen-containing water supplied from the dissolution tank 21 and the water supplied from the water tank 110 mixed in the part (mixing part) is adjusted.

  Thereby, the hydrogen containing water of the density | concentration and water quantity which a user desires can be obtained easily. Further, it is not necessary to adjust the hydrogen concentration and the amount of hydrogen water in the dissolution tank 21, and the dissolution tank 21 only needs to generate high-concentration hydrogen-containing water in which hydrogen is dissolved in a supersaturated state. It can be used, and the pressure resistance design of the dissolution tank 21 can be facilitated.

[Embodiment 7]
Still another embodiment of the present invention will be described. For convenience of explanation, the same members as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 18 is an explanatory diagram illustrating a schematic configuration of the hydrogen-containing water generating device 1 according to the present embodiment, and FIG. 19 is an explanatory diagram illustrating a configuration of a control system of the hydrogen-containing water generating device 1.

  As shown in FIGS. 18 and 19, the hydrogen-containing water generating apparatus 1 according to the present embodiment has a pressure sensor 74, a concentration calculation unit 69, a display control unit 71, concentration data in addition to the configuration shown in FIG. 1. A storage unit 72 and a display unit 73 are provided.

  The pressure sensor 74 is attached to the vent pipe 31, detects the pressure in the vent pipe 31, and transmits it to the concentration calculation unit 69. The mounting position of the pressure sensor 74 is not limited to the vent pipe 31 and may be any position where the pressure in the gas phase portion of the dissolution tank 21 can be detected. For example, the air connected from the electrolytic cell 11 to the dissolution tank 21 including the pipe It may be detected in any of the phase portions, or may be detected via the electrolytic solution in the electrolytic cell 11 or the water in the dissolution vessel 21.

  The concentration calculation unit 69 estimates the hydrogen concentration of hydrogen-containing water supplied to the user via the intake pipe 34 based on the detection result of the pressure sensor 74 and information stored in the concentration data storage unit 72 in advance. Calculate the value.

  In the concentration data storage unit 72, the correlation between the pressure at the end of the pressurization process or the stirring process in the dissolution tank 21 and the hydrogen concentration of hydrogen-containing water supplied to the user via the intake pipe 34 in the intake process. Is stored. The configuration of the density data storage unit 72 is not particularly limited as long as the information can be stored, and various conventionally known memory devices can be used.

  Note that the hydrogen concentration of the hydrogen-containing water in the dissolution tank 21 becomes the upper limit of the saturation concentration according to the pressure increased in the dissolution tank 21 by the pressure increase process and the stirring process. Further, although the hydrogen concentration of the hydrogen-containing water decreases in the subsequent depressurization step and the water intake step, the decay rate from the hydrogen concentration after the stirring step is determined mainly depending on the pressure in the dissolution tank 21 before depressurization. . For this reason, the correlation between the pressure at the end of the pressurization process or the stirring process in the dissolution tank 21 and the hydrogen concentration of the hydrogen-containing water discharged from the dissolution tank 21 through the intake pipe 34 in the intake process is measured in advance. Then, the concentration calculation unit 69 estimates the hydrogen concentration of the hydrogen-containing water supplied to the user via the intake pipe 34 according to the detection result of the pressure sensor 74 by storing the concentration in the concentration data storage unit 72. Can do.

  The display control unit 71 controls the operation of the display unit 73 and causes the display unit 73 to display the estimated value of the hydrogen concentration calculated by the concentration calculation unit 69.

  The display unit 73 displays characters, figures, images, and the like according to instructions from the display control unit 71. The display unit 73 is not particularly limited as long as the estimated value of the hydrogen concentration can be displayed. For example, a liquid crystal display panel or an organic EL display panel can be used.

  Further, the display unit 73 is not limited to the configuration that displays the estimated value of the hydrogen concentration itself. For example, the display unit 73 includes one or a plurality of lamps that indicate that the estimated value of the hydrogen concentration is equal to or greater than a predetermined value. The lighting / extinguishing of each lamp may be switched according to the estimated value of the hydrogen concentration.

  Thus, in this embodiment, the estimated value of the hydrogen concentration of the hydrogen-containing water supplied to the user in the water intake process according to the pressure in the dissolution tank 21 is calculated, and the display according to the calculated estimated value of the hydrogen concentration. I do. This makes it possible to obtain the hydrogen concentration of hydrogen-containing water that is generated today without using a large and large-sized hydrogen concentration detector that exists today, and the user grasps the progress of the generation work during the hydrogen-containing water generation operation. By doing so, user convenience can be improved.

  Note that the gas phase portion of the dissolution tank 21 is not sufficiently replaced with hydrogen gas and air is mixed, or oxygen is dissolved in the water in the dissolution tank 21, and concentration data storage. If the information stored in the unit 72 corresponds to the case where the gas phase portion in the dissolution tank 21 is sufficiently replaced with hydrogen gas, the gas phase portion has a sufficient partial pressure of hydrogen gas. Since it is lower than when it is replaced with hydrogen gas, the estimated value of the hydrogen concentration may be calculated higher than the actual value. Therefore, in order to estimate the hydrogen concentration at the time of water intake more accurately, the inside of the dissolution tank 21 is sufficiently replaced with hydrogen gas in the replacement step, and the dissolved oxygen contained in the water in the dissolution tank 21 is sufficiently degassed. It is preferable to do.

[Embodiment 8]
Still another embodiment of the present invention will be described. For convenience of explanation, the same members as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.

  The configuration of the hydrogen-containing water generating apparatus 1 according to this embodiment is the same as the configuration shown in FIG. 1 described above.

  In the present embodiment, when the electrolysis control unit 61 receives an instruction from the user via the operation input unit 70, the time when hydrogen gas is generated between the positive electrode 55 and the negative electrode 54 of the electrolysis device 12. Maintenance processing for applying a reverse polarity voltage is performed. Thereby, the ion component adhering to the positive electrode 55, the negative electrode 54, and the ion exchange membrane 51 can be separated, and the degradation of the electrolysis performance of the electrolysis apparatus 12 due to the adhesion of the ion component can be prevented.

  The configuration is not limited to the configuration in which the maintenance process is performed when an instruction is given from the user. For example, when the accumulated operation time after the previous maintenance process has reached a predetermined time, the accumulation after the previous maintenance process is performed. Maintenance processing may be performed when the number of activations reaches a predetermined number, or when it is detected that the current value, voltage value, or resistance during electrolysis has changed by a certain amount.

  Further, during the maintenance process, the voltage applied between the positive electrode 55 and the negative electrode 54 by the electrolysis control unit 61 is controlled to a voltage that generates a very small amount of ozone (for example, ozone of 0.1 ppm or less). You may make it clean the electrolytic vessel 11, the vent pipe 31, and the dissolution tank 21. FIG. Alternatively, the exhaust valve 38 may be closed until a predetermined time has elapsed since the start of ozone generation, and the exhaust valve 38 may be opened to discharge ozone when the predetermined time has elapsed.

  In addition, the intake valve 80 is provided in the vent pipe 31 as in the configuration of FIG. 11 described above, and the intake valve 80 is closed during the generation of ozone, and is upstream of the intake valve 80 in the electrolytic cell 11 and the vent pipe 31. You may make it clean only a part with ozone. Further, an ozone removal filter (not shown) may be provided in the vent pipe 31 so that ozone generated in the electrolytic cell 11 does not flow out to the dissolution vessel 21.

[Summary]
A hydrogen-containing water generating apparatus 1 according to an aspect 1 of the present invention includes an electrolytic cell 11 that electrolyzes an electrolytic solution to generate hydrogen gas, a dissolution vessel 21 that dissolves hydrogen gas in water, and a gas in the electrolytic cell 11. A vent pipe 31 for connecting a phase part and a gas phase part of the dissolution tank 21, and by increasing the pressure in the dissolution tank 21 with hydrogen gas generated in the electrolytic cell 11, It is characterized by dissolving hydrogen gas in water.

  According to the above configuration, every time hydrogen-containing water is required, hydrogen-containing water can be generated as much as necessary, so it is necessary to provide a storage tank for storing a large amount of hydrogen-containing water generated in advance. Therefore, the device configuration can be simplified. Further, since the electrolytic cell 11 and the dissolution cell 21 are separately provided and communicated only in the gas phase part, the electrode part (positive electrode 55, negative electrode 54) is always impregnated in the electrolytic solution in the electrolytic cell 11. Even in this case, the electrolytic solution in the electrolytic bath 11 is not mixed with the water in the dissolution bath 21. Accordingly, it is possible to prevent the flavor of the hydrogen-containing water produced in the dissolution tank 21 from deteriorating and to always impregnate the electrode portions (positive electrode 55, negative electrode 54, ion exchange membrane 51, catalyst layers 52, 53). This reduces the work burden on the user for placing the film, and further prevents drying and deformation of the membrane (ion exchange membrane 51, catalyst layers 52, 53) provided between the electrode portions (positive electrode 55, negative electrode 54). Thin membranes (ion exchange membrane 51, catalyst layers 52, 53) can be used, and the hydrogen generation voltage can be lowered and more easily and safely controlled. Moreover, since it is not necessary to provide an exclusive liquid container like the said patent document 1, a user can obtain hydrogen containing water easily. Therefore, according to said structure, the hydrogen containing water which contains hydrogen in high concentration can be produced | generated easily and quickly.

  The hydrogen-containing water generating apparatus 1 according to aspect 2 of the present invention is the hydrogen gas generated in the electrolytic cell 11, comprising the stirring unit 22 that stirs the water and hydrogen gas in the dissolution tank 21 in the above aspect 1. The pressure in the dissolution tank 21 is increased, and the water and hydrogen gas in the dissolution tank 21 are agitated by the agitation unit 22, whereby the hydrogen gas is dissolved in water in the dissolution tank 21.

  According to said structure, while raising the pressure of the dissolution tank 21 with the hydrogen gas produced | generated in the electrolytic cell 11, stirring in the dissolution tank 21 by the stirring part 22 WHEREIN: Hydrogen can be dissolved to a saturation concentration corresponding to the pressure, and high-concentration hydrogen-containing water can be easily generated. In addition, by raising the pressure in the dissolution tank 21 and performing stirring, the dissolved concentration of hydrogen with respect to water can be increased in each stage as compared with the case where only the pressure is increased and stirring is not performed. In addition, when hydrogen is dissolved at a high concentration at the time of pressurization, hydrogen-containing water containing a higher concentration of hydrogen can be generated when water is taken at normal pressure.

  The hydrogen-containing water generating apparatus 1 according to aspect 3 of the present invention includes the motor 40 for rotationally driving the stirring unit 22 in the aspect 2 described above, and the motor 40 is disposed outside the dissolution tank 21. In this configuration, the rotational driving force of the motor 40 is transmitted to the agitation unit 22 by magnet couplings 41a and 41b arranged with the wall surface of the dissolution tank 21 interposed therebetween.

  According to said structure, since the motor 40 can be arrange | positioned outside the dissolution tank 21, it can prevent that the flavor of hydrogen-containing water falls, preventing a mechanical system from touching drinking water. Moreover, since it is not necessary to provide the hole etc. for connecting the motor 40 and the stirring part 22 in the dissolution tank 21, the structure of the hydrogen-containing water production | generation apparatus 1 can be simplified and the pressure resistance of a container can be improved.

  The hydrogen-containing water generating apparatus 1 according to Aspect 4 of the present invention is the hydrogen-containing water generating apparatus 1 according to any one of the Aspects 1 to 3, wherein the electrolytic bath 11 has an ionic conductivity for generating hydrogen gas by performing an electrolytic treatment of an electrolytic solution. The electrolysis apparatus 12 (namely, solid polymer electrolysis apparatus) comprised so that a catalyst layer or an electrode may be united on both surfaces of the polymer film to have is comprised.

  According to the above configuration, high purity hydrogen gas can be efficiently generated in the electrolytic cell 11. In addition, by providing a polymer film having ionic conductivity, oxygen is not mixed through the pores because the membrane does not have pores.

  The hydrogen-containing water generating apparatus 1 according to the fifth aspect of the present invention is the hydrogen-containing water generating apparatus 1 according to any one of the first to fourth aspects, wherein the exhaust valve 38 is provided at a position communicating with the gas phase portion of the dissolution tank 21; And an exhaust control unit 65 for controlling the operation of the gas generator. The exhaust control unit 65 opens the exhaust valve 38 and generates hydrogen gas in the electrolytic cell 11, so that the gas phase part in the dissolution tank 21 is hydrogenated. A replacement step for replacing with gas and a pressure increasing step for increasing the pressure in the dissolution tank 21 by closing the exhaust valve 38 and generating hydrogen gas in the electrolytic cell 11 after the replacement step are performed. It is the composition which makes it.

  According to said structure, safety | security can be improved by discharging | emitting oxygen. Further, since the hydrogen partial pressure in the dissolution tank can be increased, dissolution of hydrogen into water can be efficiently performed with a small amount of hydrogen gas.

  The hydrogen-containing water generating apparatus 1 according to Aspect 6 of the present invention is the hydrogen-containing water generating apparatus 1 according to any one of Aspects 1 to 5, wherein the pressure sensor 74 detects the pressure in the gas phase portion of the dissolution tank 21 and the gas phase of the dissolution tank 21. A concentration data storage unit 72 that stores information indicating the relationship between the pressure of the unit and the hydrogen concentration of the hydrogen-containing water generated in the dissolution tank 21, and the pressure detected by the pressure sensor 74 and the concentration data storage unit 72. It is the structure provided with the concentration calculation part 69 which calculates the estimated value of the hydrogen concentration of the hydrogen containing water produced | generated by the said dissolution tank 21 based on the said memorize | stored information.

  According to the above configuration, the hydrogen concentration of the hydrogen-containing water generated in the dissolution tank 21 in accordance with the detection result of the pressure in the dissolution tank 21 without using a generally expensive and large-sized hydrogen concentration measuring apparatus that exists today. An estimated value can be calculated.

  The hydrogen-containing water generating apparatus 1 according to aspect 7 of the present invention includes the display unit 73 and the display control unit 71 that controls the operation of the display unit 73 in the above-described aspect 6, and the display control unit 71 The display unit 73 is configured to display according to the estimated value of the hydrogen concentration calculated by the concentration calculation unit 69.

  According to said structure, a user's convenience can be improved by performing the display according to the estimated value of the hydrogen concentration of the hydrogen containing water produced | generated.

  In the hydrogen-containing water generating apparatus 1 according to Aspect 8 of the present invention, in any one of Aspects 1 to 7, the vent pipe 31 is connected to a part of the ceiling surface of the electrolytic cell 11. The ceiling surface has a configuration that is inclined upward from a peripheral portion of the ceiling surface toward a portion to which the vent pipe 31 is connected.

  According to said structure, since the hydrogen gas produced | generated by the electrolytic cell 11 can be efficiently guide | induced to the vent pipe 31, the volume of the gaseous-phase part of the electrolytic cell 11 can be reduced. That is, since the volume to be boosted is small, the pressure can be increased quickly.

  The hydrogen-containing water generating apparatus 1 according to Aspect 9 of the present invention is the hydrogen-containing water generating device 1 according to any one of the Aspects 1 to 8, wherein the gas phase part of the electrolytic cell 11, the vent pipe 31, the gas phase part of the dissolution tank 21, and the exhaust pipe. Are connected in communication.

  According to said structure, the gas expanded by pressure reduction process S5 is discharged | emitted from the exhaust pipe 33, without violating in the water of the said dissolution tank 21. FIG. Thereby, while suppressing that the melt | dissolved hydrogen concentration falls by an impact, it can suppress that water mixes with the hydrogen discharged | emitted. Further, it is possible to prevent water in the dissolution tank 21 from entering the vent pipe 31.

  The hydrogen-containing water generating apparatus 1 according to aspect 10 of the present invention includes, in the above aspect 5, the stirring unit that stirs the water and hydrogen gas in the dissolution tank 21, and the stirring control unit that controls the operation of the stirring unit. The agitation control unit is configured to cause the agitation unit to agitate water in the dissolution tank in the replacement step.

  According to said structure, since the oxygen contained in the water in the dissolution tank 21 can be deaerated by stirring the water in the dissolution tank 21 in a substitution process, it is efficient to melt | dissolve hydrogen in water. Can be done automatically.

  The hydrogen-containing water generating apparatus 1 according to aspect 11 of the present invention is the aspect 10 described above, wherein the stirring unit 22 includes a rotating shaft 22a disposed along the vertical direction and a stirring blade 22b attached to the rotating shaft 22a. The exhaust valve 38 is arranged to communicate with the vicinity of the intersection of the ceiling surface of the dissolution tank 21 and the straight line passing through the center of the rotating shaft 22a.

  According to said structure, it can suppress that the water in the dissolution tank 21 blows outside via the exhaust valve 38. FIG.

  The hydrogen-containing water generating device 1 according to the aspect 12 of the present invention is the water intake pipe 34 connected to the liquid phase part of the dissolution tank 21 and the water intake pipe 34 in any of the above aspects 1 to 11. The water intake valve 39 is provided, and by opening the water intake valve 39, the user can take the hydrogen-containing water generated in the dissolution tank 21 into an arbitrary container.

  According to the above configuration, the user can easily take hydrogen-containing water into an arbitrary container by opening the water intake valve 39, and therefore it is not necessary to provide a mechanism that allows the user to repeatedly attach and detach. Therefore, since the mechanism that repeats attachment and detachment gradually deteriorates and cannot withstand high pressure, it can be operated only at low pressure. However, by providing the intake pipe 34 with the intake valve 39, the pressure in the agitation step S4 is greatly increased. Can be increased.

  The hydrogen-containing water generating apparatus 1 according to the thirteenth aspect of the present invention is the water tank 110 for storing water, the hydrogen-containing water generated in the dissolution tank 21 and the water tank 110 according to any one of the first to twelfth aspects. And mixing the water stored in the water tank 110 with the hydrogen-containing water generated in the dissolution tank 21 to mix the hydrogen concentration and the amount of water in the hydrogen-containing water. It is the structure which can be adjusted.

  According to said structure, the hydrogen containing water of the density | concentration and water quantity which a user desires can be obtained easily. In addition, since it is not necessary to adjust the hydrogen concentration and the amount of hydrogen water in the dissolution tank 21, a small container can be used as the dissolution tank 21, and the pressure resistance design of the dissolution tank 21 can be facilitated.

  In the hydrogen-containing water generating apparatus 1 according to the fourteenth aspect of the present invention, in the fourth aspect, the electrolysis apparatus 12 includes the positive electrode 55, the negative electrode 54, and the ion exchange membrane 51 sandwiched between the electrodes 54 and 55. And an electrolysis control unit 61 that switches the polarity of the voltage applied between the positive electrode 55 and the negative electrode 54 to a polarity opposite to that when performing electrolysis of the electrolytic solution.

  According to the above configuration, the ions adsorbed on the ion exchange membrane 51 can be switched by switching the polarity of the voltage applied between the positive electrode 55 and the negative electrode 54 to the opposite polarity to the electrolytic treatment of the electrolytic solution. Thus, it is possible to prevent the electrolytic performance from deteriorating. Further, the inside of the electrolytic cell 11 can be cleaned by ozone generated by applying a voltage of reverse polarity.

  In the hydrogen-containing water generating device 1 according to the aspect 15 of the present invention, in any of the above aspects 1 to 14, the vent pipe 31 is provided with a filter (hydrophobic filters 91, 92) for preventing the passage of liquid droplets. It is the composition which is done.

  According to said structure, it can prevent that the electrolyte solution in the electrolytic vessel 11 and the water in the dissolution tank 21 are mixed.

  The method for producing hydrogen-containing water according to the sixteenth aspect of the present invention includes an electrolytic cell 11 that electrolyzes an electrolytic solution to produce hydrogen gas, a dissolution vessel 21 that dissolves hydrogen gas in water, and a gas in the electrolytic cell 11. A hydrogen-containing water generating method for generating hydrogen-containing water using a hydrogen-containing water generating device 1 comprising a gas pipe portion connecting a phase portion and a gas phase portion of the dissolution tank 21, wherein the electrolytic cell 11 includes a boosting step of boosting the pressure in the dissolution tank 21 with the hydrogen gas generated in No. 11.

  According to the above method, hydrogen-containing water containing hydrogen at a high concentration can be easily and quickly generated.

  The method for producing hydrogen-containing water according to Aspect 17 of the present invention is the agitation step in which the water and hydrogen gas in the dissolution tank 21 are agitated after the pressurization step or in parallel with the pressurization step. It is a method to do.

  According to the method described above, the pressure in the dissolution tank 21 is increased by the hydrogen gas generated in the electrolytic cell 11, and the stirring in the dissolution tank 21 is performed by the stirring unit 22, thereby increasing the pressure in the dissolution tank 21. Hydrogen can be dissolved to a saturated concentration corresponding to the pressure, and high concentration hydrogen can be easily generated.

  The method for producing hydrogen-containing water according to aspect 18 of the present invention is the above aspect 16 or 17, wherein the gas phase portion in the dissolution tank 21 is formed by the hydrogen gas produced in the electrolytic cell 11 before the pressurizing step. This is a method of performing a substitution step of substitution with hydrogen gas.

  According to said method, safety | security can be improved by discharging | emitting oxygen. Moreover, since the hydrogen partial pressure in a dissolution tank can be raised, the melt | dissolution of hydrogen to water can be performed efficiently.

  The method for producing hydrogen-containing water according to Aspect 19 of the present invention is the method according to Aspect 18, in which the water in the dissolution tank 21 is agitated in the replacement step.

  According to the above method, since the oxygen contained in the water in the dissolution tank 21 can be degassed by stirring the water in the dissolution tank 21 in the replacement step, the dissolution of hydrogen in the water is efficient. Can be done automatically.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and the embodiments can be obtained by appropriately combining technical means disclosed in different embodiments. The form is also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

DESCRIPTION OF SYMBOLS 1 Hydrogen-containing water production | generation apparatus 10 Electrolytic part 11 Electrolytic tank 11a Negative electrode side electrolytic tank 11b Positive electrode side electrolytic tank 12 Electrolytic apparatus 13 Ceiling surface 20 Dissolving part 21 Dissolving tank 22 Stirring part 22a Rotating shaft 22b Stirring blade 31 Vent pipe 32 Water supply Pipe 33 Exhaust pipe 34 Water intake pipe 36 Water supply valve 37 Water supply pump 38 Exhaust valve 39 Water intake valve 40 Motor 41a, 41b Magnet coupling 51 Ion exchange membrane 52, 53 Catalyst layer 54 Negative electrode 55 Positive electrode 56 Power supply part 57 Membrane 60 Control part 61 Electrolysis control unit 62 Dissolution control unit 63 Water supply control unit 64 Water intake control unit 65 Exhaust control unit 66 Stirring control unit 67 Intake control unit 68 Concentration control unit 69 Concentration calculation unit 70 Operation input unit 71 Display control unit 72 Concentration data storage unit 73 Display unit 74 Pressure sensor 80 Intake valves 91 and 92 Hydrophobic filter 101 Oxygen exhaust pipe 102 Oxygen exhaust valve 11 Water tank 111 raw water supply pipe 112 concentration regulating valve

Claims (9)

An electrolytic cell that electrolyzes the electrolytic solution to generate hydrogen gas;
A dissolution tank for dissolving hydrogen gas in water;
A vent pipe connecting the gas phase part of the electrolytic cell and the gas phase part of the dissolution tank,
A hydrogen-containing water generating apparatus, wherein hydrogen gas is dissolved in water in the dissolution tank by increasing the pressure in the dissolution tank with hydrogen gas generated in the electrolytic tank. A stirring section for stirring water and hydrogen gas in the dissolution tank;
The pressure in the dissolution tank is increased by the hydrogen gas generated in the electrolytic tank, and the water and hydrogen gas in the dissolution tank are stirred by the stirring unit to dissolve the hydrogen gas in water in the dissolution tank. The hydrogen-containing water generating apparatus according to claim 1, wherein: A motor for rotationally driving the stirring unit;
The said motor is arrange | positioned outside the said dissolution tank, The rotational driving force of the said motor is transmitted to the said stirring part by the magnet coupling arrange | positioned on both sides of the wall surface of the said dissolution tank. 2. The hydrogen-containing water generator according to 2.   The electrolyzer is equipped with an electrolyzer configured such that a catalyst layer or an electrode is integrated on both surfaces of a polymer film having ion conductivity for generating hydrogen gas by electrolyzing an electrolytic solution. The hydrogen-containing water generator according to any one of claims 1 to 3, wherein the hydrogen-containing water generator is provided. An exhaust valve provided at a position communicating with the gas phase portion of the dissolution tank;
An exhaust control unit for controlling the operation of the exhaust valve,
The exhaust control unit
A replacement step of replacing the gas phase portion in the dissolution tank with hydrogen gas by opening the exhaust valve and generating hydrogen gas in the electrolytic cell;
5. The pressure increasing step of increasing the pressure in the dissolution tank by closing the exhaust valve and generating hydrogen gas in the electrolytic cell after the replacing step. The hydrogen-containing water generating apparatus according to claim 1. A stirring section for stirring water and hydrogen gas in the dissolution tank;
A stirring control unit for controlling the operation of the stirring unit,
The said stirring control part makes the said stirring part stir the water in the said dissolution tank in the said substitution process, The hydrogen containing water production | generation apparatus of Claim 5 characterized by the above-mentioned. A pressure sensor for detecting the pressure in the gas phase of the dissolution tank;
A concentration data storage unit storing information indicating the relationship between the pressure of the gas phase portion of the dissolution tank and the hydrogen concentration of hydrogen-containing water generated in the dissolution tank;
A concentration calculation unit for calculating an estimated value of the hydrogen concentration of the hydrogen-containing water generated in the dissolution tank based on the pressure detected by the pressure sensor and the information stored in the concentration data storage unit. The hydrogen-containing water generator according to any one of claims 1 to 6, wherein   The gas phase part and the vent pipe of the electrolytic cell, and the gas phase part and the exhaust pipe of the dissolution tank are connected in communication with each other in a gas phase. Hydrogen-containing water generator. An electrolytic cell that electrolyzes the electrolytic solution to generate hydrogen gas, a dissolution vessel that dissolves hydrogen gas in water, and a vent pipe that connects the gas phase part of the electrolytic cell and the gas phase part of the dissolution tank A method for producing hydrogen-containing water that produces hydrogen-containing water using a hydrogen-containing water producing device provided,
A method for generating hydrogen-containing water, comprising a step of increasing the pressure in the dissolution tank with hydrogen gas generated in the electrolytic cell.

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