JP7699367B2 - Hydrogen water production method and production device - Google Patents

Description

The present invention relates to a method and device for producing hydrogen water that increases the hydrogen concentration through degassing.

A device has been developed that produces hydrogen water with a high hydrogen concentration by degassing and electrolyzing water (Patent Document 1). As shown in Figure 3, Patent Document 1 describes the hydrogen water production device as having the following structure. The electrolytic hydrogen water generating pot 901 is composed of a water tank section 903 in a pot body 902, an electrolytic treatment section 904 consisting of a positive electrode 904a and a negative electrode 904b arranged opposite each other in the pot body 902 to electrolyze the raw water 1, and an ultrasonic vibration treatment section 905 that imparts ultrasonic vibrations to the raw water 1. A cylindrical vertical partition cylinder 906 such as a cylinder or a square cylinder is housed in the water tank section 903, and a diaphragm 907 is stretched at the bottom thereof. The negative electrode 904b is placed on the outside of the diaphragm 907, i.e., on the outside of the vertical partition cylinder 906, and the positive electrode 904a is placed on the inside of the diaphragm 907, i.e., inside the vertical partition cylinder 906, both of which are immersed in the raw water 1. Direct current is supplied to each of the electrode plates of the positive electrode 904a and the negative electrode 904b via the power supply unit 908a and the control unit 908b of the electrical equipment unit 908. Moreover, an ultrasonic vibrator 905a is disposed at the bottom of the alkaline water area of the pot body 902, and the control unit 908b applies electricity to the ultrasonic vibrator driving circuit 905b to apply ultrasonic vibrations to the raw water 1 in the water tank unit 903.

The hydrogen water generating device in Figure 3 is filled with both hydrogen water and oxygen water in the pot, so it cannot be conveniently used for applications that require only hydrogen water. In addition, this pot stores hydrogen water and oxygen water separated by a diaphragm, so this diaphragm requires the use of an expensive membrane with extremely fine pores, such as a reverse osmosis membrane or semipermeable membrane, which does not allow hydrogen water and oxygen water to pass through, which has the disadvantage of increasing manufacturing costs.

JP 2018-001069 A

The present invention was made in view of the above background, and one of its objectives is to provide a method and device for producing hydrogen water that allows hydrogen water to be stored in a highly concentrated state for convenient use.

Means for solving the problem and effects of the invention

In one embodiment of the present invention, a method for producing hydrogen water comprises placing a detachable negative electrode inside a pot that is open at the top, and a desorption container that is a non-permeable tank that is permeable to ions and prevents or limits the permeation of water and has a positive electrode placed inside, supplying raw water to the pot and the desorption container, sealing the pot, reducing the pressure to degas the raw water, passing electricity through the negative electrode in the pot and the positive electrode in the desorption container to electrolyze the raw water, converting the raw water in the pot into hydrogen water and the raw water in the desorption container into oxygen water, then removing the desorption container from the pot, removing the oxygen water, and storing the hydrogen water in the pot.

According to the above method for producing hydrogen water, a negative electrode is placed in the pot of raw water, and a desorption container in which a positive electrode is placed is set inside the pot, the raw water in the pot is degassed and electrolyzed, and the raw water in the pot is converted into hydrogen water by the negative electrode, and the raw water in the desorption container is converted into oxygen water by the desorption container, and the oxygen water is removed from the pot, so that the whole can be conveniently used as hydrogen water. In addition, by placing the negative electrode in the pot, the negative electrode has a large area, and the current density of the negative electrode is reduced, allowing hydrogen to be quickly dissolved in the raw water in the form of fine bubbles. If the hydrogen gas bubbles that form on the surface of the negative electrode become large, the contact area with the raw water becomes smaller, and furthermore, they quickly rise in the raw water and cannot be efficiently dissolved in the raw water.

Furthermore, the above method for producing hydrogen water has the advantage that the negative electrode in the pot is removable, and the removable container is removed from the pot for use, so the negative electrode can be removed simply and easily, and foreign matter that precipitates on the surface due to electrolysis can be removed reliably. A large-area negative electrode has a small amount of foreign matter adhering to it per unit area, and since there are no obstructions on the inner surface, the deposits can be removed easily and cleanly. Deposits that adhere to the electrode surface reduce the conductivity between the negative electrode and the raw water, suppressing the generation of hydrogen, but the inner surface of the pot, which can maintain a clean surface, experiences less reduction in surface conductivity due to deposits, and hydrogen can be efficiently generated on the negative electrode in the pot, allowing high-concentration hydrogen water to be produced quickly.

In another embodiment of the method for producing hydrogen water according to the present invention, the pot is made of metal and is used in conjunction with the negative electrode.

According to the above method for producing hydrogen water, a metal pot of raw water is used as the negative electrode, and a desorption container in which a positive electrode is placed is set inside the pot, and the raw water in the pot is degassed and electrolyzed, and the raw water in the pot is converted into hydrogen water and the raw water in the desorption container into oxygen water at the negative electrode, and the desorption container is removed from the pot to remove the oxygen water from the pot, so that the whole can be conveniently used as hydrogen water. In addition, since the pot is used in combination with a metal negative electrode, the negative electrode has a large area and the current density of the negative electrode is low, allowing hydrogen to be quickly dissolved in the raw water in the form of fine bubbles. If the hydrogen gas bubbles that form on the surface of the negative electrode become large, the contact area with the raw water becomes small, and furthermore, they quickly rise in the raw water and cannot be efficiently dissolved in the raw water.

Furthermore, the above method of producing hydrogen water uses the pot as the negative electrode and the removable container is removed from the pot for use, so another feature is that the inner surface of the pot, which is the negative electrode, can be simply and easily removed, and foreign matter that precipitates on the surface by electrolysis can be reliably removed. A large-area negative electrode has a small amount of foreign matter adhering to it per unit area, and since there are no obstructions on the inner surface, the deposits can be easily and cleanly removed. Deposits that adhere to the electrode surface reduce the conductivity between the negative electrode and the raw water, suppressing the generation of hydrogen, but the inner surface of the pot, which can maintain a clean surface, experiences less reduction in surface conductivity due to deposits, and hydrogen can be efficiently generated inside the pot, allowing high-concentration hydrogen water to be produced quickly.

Another embodiment of the method for producing hydrogen water according to the present invention involves electrolysis by applying a pulse voltage with a period of 1 msec or less to the negative and positive electrodes.

The above method for producing hydrogen water generates hydrogen gas by applying a pulse voltage to the negative electrode, so the hydrogen gas generated on the electrode surface does not grow continuously into large bubbles. Hydrogen gas is generated on the electrode surface the moment the pulse voltage is applied, and does not grow large, so the bubbles do not grow large and there is a high probability that they will separate from the electrode surface, reducing the average particle size of the supply that separates from the electrode surface into the raw water, allowing for quick dissolution into the raw water.

The hydrogen water generating device according to one embodiment of the present invention comprises a pot with an open top, a negative electrode detachably arranged inside the pot, a removable container with a closed bottom and a positive electrode inside, a sealed lid detachably connected to the upper opening of the pot and capable of closing the opening of the pot, a pressure reducing mechanism that reduces the pressure inside the pot to degas it, and a DC power supply connected to the negative and positive electrodes. The removable container is a water-impermeable container that allows ions to pass through and prevents or limits the permeation of water, the pressure reducing mechanism reduces the pressure of the raw water in the pot and the removable container to degas it, and the negative electrode, which is energized by the DC power supply, turns the raw water in the pot into hydrogen water.

According to the hydrogen water generating device configured as above, a negative electrode is placed inside the pot, and a removable container with a positive electrode inside is placed inside the pot so that it can be freely attached and detached. The inside of the pot, whose opening is closed with a hermetic lid, is depressurized and degassed using a pressure reducing mechanism, and electricity is passed from a DC power source to the negative and positive electrodes to electrolyze the raw water in the pot and turn it into hydrogen water using the negative electrode. Therefore, the removable container in which acidic water is generated can be removed from the pot, and the oxygen water can be removed from the pot, and the whole pot can be conveniently used as hydrogen water. In addition, by placing the negative electrode inside the pot, the negative electrode has a large area, which reduces the current density of the negative electrode, allowing hydrogen to be quickly dissolved in the raw water in the form of fine bubbles.

Furthermore, the hydrogen water generating device described above has a detachable negative electrode in the pot, and the detachable container is removed from the pot for use, so the negative electrode can be easily and reliably removed from the surface due to electrolysis. The large surface area of the negative electrode means that less foreign matter adheres to it per unit area, and since there are no obstructions on the inner surface, the deposits can be easily and cleanly removed. Deposits that adhere to the electrode surface reduce the conductivity between the negative electrode and the raw water, inhibiting the generation of hydrogen, but the inner surface of the pot, which can maintain a clean surface, experiences less reduction in surface conductivity due to deposits, and hydrogen can be efficiently generated at the negative electrode in the pot, allowing high-concentration hydrogen water to be produced quickly.

In another embodiment of the hydrogen water generating device of the present invention, the pot is made of metal and is used in conjunction with the negative electrode.

According to the hydrogen water generating device configured as above, a removable container with a positive electrode inside is detachably placed inside a metal pot used in combination with the negative electrode, the inside of the pot with its opening closed by a hermetic lid is depressurized and degassed by a pressure reducing mechanism, and electricity is passed from a DC power source to the negative and positive electrodes to electrolyze the raw water in the pot and turn it into hydrogen water at the negative electrode, so that the removable container in which acidic water is generated can be removed from the pot, and the whole pot can be conveniently used as hydrogen water by removing oxygen water from it. Also, because the pot is used in combination with the metal negative electrode, the negative electrode has a large surface area, and the current density of the negative electrode can be reduced, allowing hydrogen to be dissolved quickly in the raw water in the form of fine bubbles.

Furthermore, the hydrogen water generating device described above uses the pot as the negative electrode and the removable container is removed from the pot for use, so it has the advantage that the inner surface of the pot, which is the negative electrode, can be simply and easily, and also reliably removed of foreign matter that precipitates on the surface by electrolysis. The negative electrode has a large area, so the amount of foreign matter that adheres to it per unit area is small, and since there are no obstructions on the inner surface, the deposits can be easily and cleanly removed. Deposits that adhere to the electrode surface reduce the conductivity between the negative electrode and the raw water, suppressing the generation of hydrogen, but the inner surface of the pot, which can maintain a clean surface, experiences less reduction in surface conductivity due to deposits, and hydrogen can be efficiently generated inside the pot, allowing high-concentration hydrogen water to be produced quickly.

In another embodiment of the hydrogen water generating device of the present invention, a DC power source applies a pulse voltage with a period of 1 msec or less to the electrodes.

With this configuration, hydrogen gas is generated by applying a pulse voltage to the negative electrode, so the hydrogen gas generated on the electrode surface does not grow continuously into large bubbles. Hydrogen gas is generated on the electrode surface the moment the pulse voltage is applied, and does not grow large, so the bubbles do not grow large and there is a high probability that they will separate from the electrode surface, and the average particle size of the supply that separates from the electrode surface into the raw water is reduced, allowing for quick dissolution into the raw water.

In another embodiment of the hydrogen water generating device of the present invention, the period for ultrasonically vibrating the negative electrode is shorter than the period of the pulse voltage of the electrode.

With this configuration, the hydrogen gas generated on the electrode surface is not allowed to grow continuously into large bubbles, but the growth of the hydrogen gas is stopped and the electrode surface is ultrasonically vibrated to forcibly separate the hydrogen gas in the form of fine bubbles into the raw water. This has the advantage that the hydrogen gas is quickly separated in the form of fine bubbles into the raw water without allowing bubbles to grow on the electrode surface, and is dissolved in the raw water very quickly, resulting in highly concentrated hydrogen water.

In another embodiment of the hydrogen water generating device of the present invention, the detachable container comprises a container body that is permeable to water and maintains a predetermined shape inside the pot, and a microporous membrane laminated on the inner surface of the container body, and the microporous membrane is one of filter paper, a reverse osmosis membrane, and a semipermeable membrane.

According to this configuration, the desorption container is composed of a container body that is permeable to water and maintains a predetermined shape, and a microporous membrane that is laminated on the inner surface of the container body. The microporous membrane is either filter paper, a reverse osmosis membrane, or a semipermeable membrane. This allows ion permeability while effectively preventing oxygenated water generated inside from leaking into the pot when the desorption container is removed from the pot, minimizing the decrease in the concentration of hydrogen water in the pot.

In another embodiment of the hydrogen water generating device of the present invention, the sealing lid has a through hole connected to the pressure reducing mechanism, and a check valve is connected to the through hole, and the check valve is connected in a direction that allows air to pass from the pot toward the pressure reducing mechanism and does not allow air to pass in the opposite direction.

This configuration allows the pot to be efficiently depressurized while sealed, removing oxygen, nitrogen, carbon dioxide, and other gases dissolved in the raw water and degassing it.

In another embodiment of the hydrogen water generating device of the present invention, the check valve has a valve opening mechanism that forcibly passes air in the reverse direction.

With this configuration, air is periodically forced to pass in the reverse direction, preventing clogging of the check valve by deposits or debris that have peeled off from the electrode surface.

Another embodiment of the hydrogen water generating device of the present invention is equipped with a constant current circuit that controls the electrolysis current that the DC power supply passes through the electrodes into the raw water to a set current.

With this configuration, even if the conductivity of the raw water changes and the electrical resistance between the electrodes changes, the voltage between the electrodes can be controlled so that the current flowing between the negative and positive electrodes is constant. Therefore, when electrolyzing raw water with low conductivity, the voltage between the electrodes is increased to raise the current to a set value, and when electrolyzing raw water with high conductivity, the voltage between the electrodes is decreased to control the current between the electrodes to a set value. A DC power supply equipped with a constant current circuit can electrolyze raw water with different conductivities for a certain period of time to set the hydrogen concentration to a set value, so that all users can conveniently use the hydrogen water at their preferred concentration.

In another embodiment of the hydrogen water generating device of the present invention, the DC power supply is equipped with a timer that cuts off the electrode current when the electrolysis time of the raw water reaches a set time.

With this configuration, hydrogen water with a specified hydrogen concentration can be produced by setting the timer to the time when the raw water is electrolyzed and the hydrogen concentration reaches a set value. The time when the timer cuts off the current is determined by calculating the integrated current value from the amount of raw water supplied to the pot, the amount of hydrogen generated, the solubility of the generated hydrogen in the raw water, and the required hydrogen concentration of the hydrogen water, and then calculating the electrolysis time from the integrated current value and the electrode current.

In another embodiment of the hydrogen water generating device of the present invention, the DC power supply is equipped with a current interruption circuit that detects when the integrated value of the electrode current reaches a predetermined electrical quantity and interrupts the current to the electrode.

With this configuration, the amount of electricity flowing through the electrodes during electrolysis can be set to a set value for the hydrogen concentration of the hydrogen water produced in the pot, even if the raw water has a different conductivity. The amount of hydrogen produced in the raw water in the pot by electrolysis is proportional to the integral value of the electrolysis current, i.e., the amount of electricity. For example, a DC power supply equipped with a constant current circuit can electrolyze raw water with a different conductivity for a certain period of time to set the hydrogen concentration to a set value, so that all users can conveniently use the hydrogen water at their preferred concentration. The constant current circuit can control the voltage between the electrodes so that the current flowing between the negative and positive electrodes is constant, even if the conductivity of the raw water changes and the electrical resistance between the electrodes changes.

In another embodiment of the hydrogen water generating device of the present invention, the current cutoff circuit includes a current detector that detects the current flowing through the electrodes, a calculation circuit that integrates the current value detected by the current detector, and a cutoff circuit that compares the integrated current value calculated by the calculation circuit with a pre-stored set value and cuts off the current when the calculated set value becomes the set value.

With this configuration, the hydrogen water in the pot can be adjusted to a predetermined hydrogen concentration without providing a constant current circuit in the power supply circuit. In a DC power supply that does not have a constant current circuit in the power supply circuit, the electrode current changes depending on the conductivity of the raw water, so the current value flowing through the electrode is detected by a current detector, calculated by a calculation circuit, and the integrated value of the current calculated by the calculation circuit is compared with a pre-stored set value, and when the calculated set value becomes the set value, the current cut-off circuit is controlled to cut off the current. This DC power supply detects the electrode current and integrates the detected current value to detect the amount of electricity during electrolysis, so the electrode current is not kept constant, but the amount of electricity flowing in the state where the raw water is electrolyzed, i.e., the amount of hydrogen generated, is detected and the electrode current is cut off. Therefore, it is possible to pass electricity through raw water with different conductivities to turn the raw water in the pot into hydrogen water with a predetermined hydrogen concentration without controlling the electrode current to a constant value.

FIG. 1 is a schematic diagram showing a hydrogen water generating device according to the first embodiment. FIG. 2 is a schematic diagram showing the configuration of a hydrogen water generating device according to the second embodiment. FIG. 3 is a schematic cross-sectional view showing a conventional hydrogen water generating device.

The present invention will be described in detail below with reference to the drawings. In the following description, terms indicating specific directions or positions (e.g., "upper", "lower", and other terms including these terms) are used as necessary, but the use of these terms is for the purpose of facilitating understanding of the invention with reference to the drawings, and the meaning of these terms does not limit the technical scope of the present invention. In addition, parts with the same reference numerals appearing in multiple drawings indicate the same or equivalent parts or members.
Furthermore, the embodiments shown below are specific examples of the technical ideas of the present invention, and do not limit the present invention to the following. Furthermore, unless otherwise specified, the dimensions, materials, shapes, relative positions, etc. of the components described below are intended to be illustrative and not to limit the scope of the present invention. Furthermore, the contents described in one embodiment or example can be applied to other embodiments or examples. Furthermore, the sizes and positional relationships of the components shown in the drawings may be exaggerated to clarify the explanation.

[Embodiment 1]
FIG. 1 is a schematic diagram of a generating device used in the method for generating hydrogen water according to the first embodiment. In the method for generating hydrogen water of the present invention, the hydrogen water generating device 100 of FIG. 1 is used to convert raw water 1 into hydrogen water in the following steps. A negative electrode 3 is detachably arranged inside a pot 2 that is open at the top, and a desorption container 4 is arranged in which a positive electrode 5 is arranged inside a non-permeable tank 11 that is permeable to ions and prevents or limits the permeation of water, and raw water 1 is supplied to the pot 2 and the desorption container 4. In this state, the pot 2 is sealed, the pressure is reduced to degas the raw water 1, and dissolved gases such as oxygen, nitrogen, and carbon dioxide gas contained in the raw water 1 are removed. Then, electricity is applied to the negative electrode 3 in the pot 2 and the positive electrode 5 in the desorption container 4 to electrolyze the raw water 1. The raw water 1 in the pot 2 is electrolyzed into hydrogen water, and the raw water 1 in the desorption container 4 is oxygen water. After that, the desorption container 4 is removed from the pot 2, and the oxygen water is removed from the pot 2 to convert the whole into hydrogen water.

In the above production method, a removable negative electrode 3 is placed in the pot 2 separately from the pot 2, and the deaerated raw water 1 in the pot 2 is electrolyzed to turn the raw water 1 in the pot 2 into hydrogen water. The raw water 1 is electrolyzed to generate not only hydrogen water but also oxygen water, but the oxygen water is generated not in the pot 2 but in the desorption container 4, which can be removed from the pot 2 by removing the desorption container 4. Therefore, the pot 2 is filled with only hydrogen water. The desorption container 4 is placed inside the pot 2 to generate oxygen water, but the desorption container 4 can be made to be about 1/2 to 1/10 the internal volume of the pot 2, so that the oxygen water can be removed in the desorption container 4 and 50% to 90% of the raw water 1 can be treated to hydrogen water. The desorption vessel 4 can be made small because the volume of hydrogen generated by electrolysis is twice as large as the volume of oxygen, so the internal volume of the desorption vessel 4 can be made half that of the pot 2 while maintaining the same gas concentration of hydrogen water and oxygen water, and furthermore, the oxygen water concentration in the desorption vessel 4 can be made higher than the hydrogen water concentration without making the concentrations of hydrogen water and oxygen water equal. Therefore, the above method can convert most of the raw water 1 into hydrogen water for convenient and effective use. In particular, since the pot 2 can be stored and used in a state where only hydrogen water is filled, it can be used very conveniently for various purposes, and the hydrogen water generated in the pot 2 over time is not diluted by the oxygen water generated in the desorption vessel 4, so that the hydrogen concentration can be maintained at a high level and can be effectively used.

[Embodiment 2]
FIG. 2 is a schematic diagram of a generating device used in the method for generating hydrogen water according to the second embodiment. In the method for generating hydrogen water of the present invention, the hydrogen water generating device 200 of FIG. 2 is used to convert raw water 1 into hydrogen water in the following steps. Inside a pot 2 that is open at the top and made of metal and used in combination with a negative electrode 3, a desorption container 4 is placed, which has ion permeability and a positive electrode 5 is placed inside a non-permeable tank 11 that prevents or limits the permeation of water, and raw water 1 is supplied to the pot 2 and the desorption container 4. In this state, the pot 2 is sealed, the pressure is reduced to degas the raw water 1, and dissolved gases such as oxygen, nitrogen, and carbon dioxide gas contained in the raw water 1 are removed. Then, electricity is applied to the negative electrode 3 of the pot 2 and the positive electrode 5 in the desorption container 4 to electrolyze the raw water 1. The raw water 1 in the pot 2 is electrolyzed into hydrogen water, and the raw water 1 in the desorption container 4 is oxygen water. After that, the desorption container 4 is removed from the pot 2, and the oxygen water is removed from the pot 2 to convert the whole into hydrogen water.

In the above production method, a metal pot 2 is used in combination with a negative electrode 3 to electrolyze deaerated raw water 1, converting the raw water 1 in the pot 2 into hydrogen water. Raw water 1 is electrolyzed to generate not only hydrogen water but also oxygen water, but the oxygen water is generated not in the pot 2 but in the desorption container 4, which can be removed from the pot 2 by removing the desorption container 4. Therefore, the pot 2 is filled with only hydrogen water. As above, the desorption container 4 is placed inside the pot 2 to generate oxygen water, but the desorption container 4 can be made about 1/2 to 1/10 the internal volume of the pot 2, so that the oxygen water can be removed in the desorption container 4 and 50% to 90% of the raw water 1 can be treated to hydrogen water. The desorption vessel 4 can be made small because the volume of hydrogen generated by electrolysis is twice as large as the volume of oxygen, so the internal volume of the desorption vessel 4 can be made half that of the pot 2 while maintaining the same gas concentration of hydrogen water and oxygen water, and furthermore, the oxygen water concentration in the desorption vessel 4 can be made higher than the hydrogen water concentration without making the concentrations of hydrogen water and oxygen water equal. Therefore, the above method can convert most of the raw water 1 into hydrogen water for convenient and effective use. In particular, since the pot 2 can be stored and used in a state where only hydrogen water is filled, it can be used very conveniently for various purposes, and the hydrogen water generated in the pot 2 over time is not diluted by the oxygen water generated in the desorption vessel 4, so that the hydrogen concentration can be maintained at a high level and can be effectively used.

As shown in Figure 1, by placing the negative electrode 3 inside the pot 2, the electrode area of the negative electrode 3 can be made large. Furthermore, as shown in Figure 2, by making the pot 2 for the raw water 1 out of metal and using it in combination with the negative electrode 3, the electrode area of the negative electrode 3 can be made considerably large. A large-area negative electrode 3 can reduce the amount of hydrogen gas generated per unit area per unit time. This is effective in turning the hydrogen gas generated on the surface of the negative electrode 3 into fine bubbles. Separating the hydrogen gas from the electrode surface in the form of fine bubbles is effective in efficiently dissolving the hydrogen gas in the raw water and quickly improving the hydrogen concentration in the raw water.

Furthermore, even in the highest concentration hydrogen water, the hydrogen concentration is small at about 1.6 ppm (25°C). The amount of hydrogen generated by electrolysis can be calculated according to Coulomb's law, and 2 x 96,500 coulombs of electricity generates 1 gram equivalent, i.e., 22.4 liters, or 2 g of hydrogen. If the hydrogen generated by electrolysis is dissolved in all the raw water, for example, 2 liters of raw water can have a hydrogen concentration of 1.6 ppm with an electrical charge of about 300 millicoulombs. Since an electrical charge of 300 millicoulombs can be achieved by passing 150 μA for 2000 seconds, hydrogen water with the maximum concentration can be obtained by passing a current of 150 μA between the negative and positive electrodes for 2000 seconds. However, since the generated hydrogen is not dissolved in all the raw water, the amount of electricity passed through the electrodes is adjusted taking into account the dissolution rate of the generated hydrogen. For example, a device that can dissolve 50% of the generated hydrogen into the raw water by diffusing the generated hydrogen into the raw water as extremely fine bubbles can maximize the hydrogen concentration in 2 liters of raw water with an electrical charge of 600 millicoulombs, so the oxygen concentration of the hydrogen water can be maximized by passing a current of 150 μA through the electrodes for 4,000 seconds (just under 70 minutes).Furthermore, a device that can dissolve 10% of the generated hydrogen into the raw water can maximize the hydrogen concentration in 2 liters of raw water with an electrical charge of 3,000 millicoulombs, so the oxygen concentration of the hydrogen water can be maximized by passing a current of 300 μA through the electrodes for 10,000 seconds (approximately 3 hours).

The above method of producing hydrogen water uses the negative electrode 3, which can have a considerably large electrode surface area, to reduce the current density of the electrode, efficiently generating fine hydrogen gas bubbles and quickly improving the hydrogen concentration of the raw water 1. Furthermore, after hydrogen water is produced, oxygenated water is removed and only hydrogen water is stored in the pot 2, which prevents the hydrogen concentration from decreasing over time and allows the water to be effectively used as high-concentration hydrogen water.

In principle, the method of generating hydrogen water by electrolyzing raw water 1 cannot eliminate the accumulation of foreign matter on the electrode surface. This is because positive metal ions are adsorbed to the negative electrode 3. Tap water, which is the raw water 1, contains metal ions such as calcium and magnesium, and groundwater contains iron ions, and these metal ions are precipitated on the surface of the negative electrode 3 by electrolysis. In the above method of generating hydrogen water, the negative electrode 3 is placed inside the pot 2 in FIG. 1, and the pot 2 is made of metal and used in combination with the negative electrode 3 in FIG. 2, so that electrolysis is performed on the negative electrode 3 with a large electrode area, so that the precipitates that precipitate on the electrode surface can be diffused and precipitated on the large negative electrode 3, and can be easily removed by wiping or other methods after use, and the electrode surface is always kept clean, that is, in a state with excellent conductivity with the raw water 1, and the characteristic of efficiently generating hydrogen water is also realized. Furthermore, in FIG. 1, both the negative electrode 3 and the detachable container 4 are freely detachable, and in FIG. 2, the pot is made of metal and used in combination with the negative electrode, and the detachable container 4 is freely detachable. In either case, the removal container 4, which is detachably placed inside the pot 2, can be removed from the pot 2, and there are no obstacles, so the deposits on the electrode surface can be easily removed by wiping them off or other methods.

The method for generating hydrogen water involves applying a pulse voltage with a period of 1 msec or less to the negative electrode 3 and the positive electrode 5. In other words, by applying a pulse voltage to the negative electrode 3 to generate hydrogen gas, the hydrogen gas generated on the electrode surface does not grow continuously into large bubbles, but is generated on the electrode surface the moment the pulse voltage is applied. However, because this time is short, the hydrogen gas does not grow large, but quickly separates from the electrode surface and becomes fine bubbles. Therefore, this has the advantage of reducing the average particle size of the bubbles that separate into the raw water 1, allowing them to dissolve quickly in the raw water 1.

Hydrogen water can also be produced by electrolysis after decompression and degassing, eliminating the air space between the raw water 1 and the sealed lid 9 at the top of the pot, and creating a sealed, pressurized state. By dissolving hydrogen in the degassed raw water 1 under further pressure after decompression and degassing, the concentration of dissolved hydrogen gas can be made extremely high. Although not shown, the pressurization method can be, for example, a method of lifting the bottom with a rotating screw to squeeze out the air space, or a method of using spring air with a bottom-up method on a syringe (a vacuum pump 12 for degassing can be used), but it is not limited to these methods, and any other method that can create a predetermined pressurized state can be used. In order to reduce the air space at the top of the pot 2 in advance, the pot 2 can be made into a gently conical shape that narrows toward the center of the top.

The raw water 1 in the pot 2 is electrolyzed into hydrogen water, and the raw water 1 in the desorption vessel 4 is oxygen water. After that, the desorption vessel 4 is removed from the pot 2, and the oxygen water is removed from the pot 2, so that the whole of the water can be used as hydrogen water.
(Hydrogen water generating device 100, 200)

The hydrogen water generating device 100 shown in FIG. 1 comprises a pot 2 with an open top, a negative electrode 3 that is detachably arranged inside the pot, a removable container 4 that is detachably arranged inside the pot 2 and has a positive electrode 5 inside, a sealing lid 9 that is detachably connected to the upper opening 2a of the pot 2 and seals the opening 2a of the pot 2 so that it can be closed, a pressure reducing mechanism 18 that reduces the pressure while the pot 2 is sealed, removing gases such as oxygen, nitrogen, and carbon dioxide that are dissolved in the raw water 1, and a DC power source 21 that is connected to the negative electrode 3 and the positive electrode 5.

The hydrogen water generating device 200 shown in FIG. 2 comprises a metal pot 2 with an open top that doubles as a negative electrode 3, a removable container 4 that is detachably placed inside the pot 2 and has a positive electrode 5 inside, a sealing lid 9 that is detachably connected to the upper opening 2a of the pot 2 and seals the opening 2a of the pot 2 so that it can be closed, a pressure reducing mechanism 18 that reduces the pressure while the pot 2 is sealed, removing gases such as oxygen, nitrogen, and carbon dioxide that are dissolved in the raw water 1, and a DC power source 21 that is connected to the negative electrode 3 and the positive electrode 5.

(Pot 2)
When the pot 2 is used in conjunction with the negative electrode 3 as shown in FIG. 2, it is manufactured by forming it into a cylindrical shape with the bottom closed with a metal plate made of aluminum or stainless steel. When the negative electrode 3 is arranged inside the pot 2 as shown in FIG. 1, the material is not limited, and it can be made of plastic. The cylindrical pot 2 is preferably cylindrical, but is not limited to a cylindrical shape, and can be, for example, an elliptical cylindrical shape or a square cylindrical shape. The internal volume of the pot 2 is set to an optimum value in consideration of the application, and for example, in a household device, it is set to 1 liter to 10 liters. In an agricultural or industrial device, the volume of the pot 2 is increased to 100 liters to 1000 liters to generate a large amount of hydrogen water. In order to seal the upper opening 2a of the pot 2 with a sealing lid 9, the upper edge is formed into a flat shape, and the cross-sectional shape is made flat or curved as shown in FIG. 1 and FIG. 2, so that it can be airtightly sealed via a packing 10. Also, in order to reduce the air gap between the raw water 1 and the sealing lid 9 in the upper part of the pot 2, the shape may be a gentle cone tapering toward the center of the upper part of the pot 2. In this case, the cross-sectional shape of the upper opening 2a of the pot 2 may be a flat surface or a curved shape.

The pot 2 shown in Figs. 1 and 2 is fixed at the bottom to a base 32 and placed in a vertical position. The base 32 shown in the figure has a recessed upper shape that can fit the bottom of the pot 2, allowing the pot 2 to be stably supported. When the pot 2 is also used as a negative electrode 3 as shown in Fig. 2, the base 32 is made of an insulating material, allowing the metal pot 2 to be placed in an insulated state against the installation surface. The base 32 can also have a storage section 32a with an upper opening in the center. When hydrogen is dissolved in the deaerated raw water 1 by electrolysis after deaeration by eliminating the air layer above the pot 2 and creating a sealed and pressurized state, a sliding lock (not shown) can also be provided in the storage section 32a. The sliding lock is structured so that when the lock is released, it slides up, eliminating the air layer above the pot 2 and fixing it in a sealed and pressurized state.

(Sealing lid 9)
The upper opening 2a of the pot 2 is sealed with a sealing lid 9 while the raw water 1 is being degassed. The sealed pot 2 is depressurized to degas the gas dissolved in the raw water 1. The sealing lid 9 is shaped to fit the upper opening 2a of the pot 2, and a packing 10 is tightly attached to the lower surface. The packing 10 is a rubber-like elastic body, and is tightly attached to the opening 2a of the pot 2 to airtightly seal the pot 2. As an example, the packing 10 shown in Figs. 1 and 2 has an insertion part 10a that is inserted into the inside of the opening 2a of the pot 2, and the insertion part 10a is elastically pressed against the inner surface of the opening 2a to airtightly seal the opening 2a. The packing 10 made of a rubber-like elastic body can also be structured to be placed on the outer periphery of the opening 2a of the pot 2 and to be tightly attached without any gaps. The packing 10 is adsorbed to the outer periphery of the opening 2a when the inside of the pot 2 is depressurized, and seals the opening 2a of the pot 2.

1 and 2 has a through hole 9a that penetrates vertically, and the through hole 9a is connected to a check valve 13. The through hole 9a of the sealing lid 9 in FIG. 1 is fixed to a pipe 14, a suction hose 15 is connected to the pipe 14, and a check valve 13 is connected to the suction hose 15. Although not shown, the check valve 13 can be provided on the sealing lid 9, or on the suction side of the pressure reducing mechanism 18. The check valve 13 is a valve that exhausts air from the pot 2 to the outside but does not allow air to pass in the reverse direction, and a sphere 13b is placed on a tapered valve seat 13a that narrows downward. The sphere 13b is pressed against the valve seat 13a by its own weight or via a compression spring, preventing outside air from flowing back into the pot 2. The through hole 9a, which is connected to the check valve 13, can depressurize the inside of the pot 2 using the pressure reduction mechanism 18, and then by stopping the operation of the pressure reduction mechanism 18 or by disconnecting the suction hose 15, the inside of the pot 2 can be kept in a reduced pressure state and the raw water 1 can be deaerated.

The hydrogen water generating devices 100, 200 shown in Figures 1 and 2 can perform electrolysis by reducing the pressure and degassing the pot 2 with the sealing lid 9, eliminating the air layer above the pot 2, and creating a sealed, pressurized state. This device extremely increases the concentration of dissolved hydrogen, and although not shown, can be equipped with a safety valve. As with the check valve 13, a pipe can be fixed to the through hole and a safety valve can be provided on the suction hose, or a safety valve can be provided directly on the sealing lid 9.

(Detachable container 4)
The desorption container 4 is a water-impermeable tank 11 that has ion permeability so that electricity can be applied to the negative electrode 3 and the positive electrode 5 at the timing of electrolysis, and is capable of removing oxygenated water produced inside the container 4 from the pot 2 by removing the oxygenated water produced inside the container 4 from the pot 2. The desorption container 4 shown in Figures 1 and 2 has a microporous membrane 4b laminated on the inside of a container body 4a that is water-permeable and maintains a predetermined shape inside the pot 2. The container body 4a is manufactured, for example, by press-molding a metal porous plate into the container shape, or by molding a thermoplastic plastic into a net-like or porous plate-like container, and is further manufactured as a water-permeable unglazed container.

The microporous membrane 4b is permeable to ions, and when lifted from the pot 2, no or very little oxygen water leaks, i.e., a substantially water-impermeable sheet material can be used. In this specification, "substantially water-impermeable sheet" means, for example, a sheet that causes leakage of 1/10 or less of the oxygen water generated inside when removed from the pot 2. This is because a desorption container 4 that causes leakage of 1/10 or less of the oxygen water inside when removed from the pot 2 causes very little decrease in the concentration of hydrogen water in the pot 2 and can be used in practice. In addition, filter paper, reverse osmosis membrane, semipermeable membrane, etc. can be used as a water-impermeable sheet with this characteristic. These sheets are formed into a bag shape and layered on the inner surface of the container body 4a.

Also, an unglazed container that is fired without applying a glaze to the surface can be manufactured to be almost water-tight, and therefore can be used as the desorption container 4 without providing a microporous membrane 4b on the inner surface. However, an unglazed container can be made into a more water-tight container by laminating a plastic microporous membrane 4b used in reverse osmosis membranes on the inner surface. Furthermore, instead of an unglazed container, a container can be made by cutting rock that is permeable to ions and almost water-tight. This container can also be manufactured to be almost water-tight, and therefore can be used as the desorption container 4 without providing a microporous membrane 4b on the inner surface, but like an unglazed container, it can also be made into a more water-tight container by laminating a plastic microporous membrane 4b that is applied to the base sheet of a reverse osmosis membrane.

1 and 2, the desorption container 4 has a positive electrode 5 disposed in the center of the cylinder. The positive electrode 5 is preferably a titanium plate with a platinum-plated surface, but other metal plates or carbon electrodes can also be used. The electrode structure is preferably a mesh or punched metal structure. This is because water can pass through it, the stirring effect can make the dissolution concentration uniform, and the opposing area of each electrode can be reduced to save rare and expensive platinum and titanium. In FIG. 1, the positive electrode 5 is fixed to the center of the desorption container 4 via the support part 6a of the bottom lid 4c of the desorption container 4, and the upper end is connected and fixed to the sealing lid 9, and is connected to the positive output terminal 21a of the DC power source 21 via a conductive metal socket 28a and an external connector 29. In FIG. 2, the positive electrode 5 is fixed to the center of the desorption container 4 via a support ring 6, and the upper end is fixed to a conductive metal vertical rod 7. The vertical rod 7 is connected to the positive output terminal 21a of the DC power source 21 through the lead line 8 fixed to the sealed lid 9. The lead line 8 has an airtight structure and passes through the sealed lid 9, and has a connector 28 at its lower end into which the vertical rod 7 is inserted for electrical connection. The connector 28 is electrically connected by inserting the vertical rod 7 into it when the sealed lid 9 is set in a fixed position on the pot 2. The upper end of the lead line 8 is connected to the DC power source 21 through an external connector 29. Furthermore, the positive electrode 5 is not limited to the above structure, and can have any of the structures shown in Figures 1 and 2, or any other structure that can fix and arrange the positive electrode 5 at a predetermined position in the desorption container 4.

As shown in Figures 1 and 2, the above-mentioned detachable container 4 is arranged in a vertical position in the center of the pot 2. For example, the detachable container 4 in Figure 2 is arranged at a predetermined position in the pot 2 via a fixing member 33. The fixing member 33 in the figure is composed of multiple guide arms 33a fixed to the upper and bottom of the outer peripheral surface of the cylindrical detachable container 4. The fixing member 33 arranges the multiple guide arms 33a in a position extending radially from the outer peripheral surface of the detachable container 4. The fixing member 33 provided on the upper part of the detachable container 4 has the multiple guide arms 33a in a horizontal position, and the fixing member 33 provided on the bottom of the detachable container 4 has the multiple guide arms 33a in an inclined position extending downward toward the outside, so that the lower surface of the detachable container 4 can be supported in a position separated from the bottom surface of the pot 2. The guide arms 33a have their rear ends fixed to the outer circumferential surface of the removable container 4, and are provided with a buffer portion 33b at their ends. The buffer portion 33b is brought into contact with or close to the inner circumferential surface of the pot 2, so that the removable container 4 can be positioned at a fixed position in the center of the pot 2. The fixing member 33 described above fixes the guide arms 33a to the outer circumferential surface of the removable container 4, but the fixing member 33 consisting of the guide arms 33a can also be made detachable from the removable container 4. Furthermore, the fixing member is not limited to the above structure, and any other structure that can detachably position the removable container at a predetermined position in the pot can be adopted. As shown in FIG. 1, the removable container 4 can be connected and fixed to the sealed lid 9. For example, the container body 4a of the removable container 4 can be connected and fixed to the sealed lid 9 by screws, fasteners, etc., and the bottom lid 4c of the removable container 4 can be used as a lower lid. The support portion 6a of the bottom lid 4c can support the positive electrode 5. Furthermore, the removable container 4 is not limited to the above structure, and any other structure that can place and connect the removable container 4 at a specified position can be used.

Because the cathode gas (hydrogen) generated at the negative electrode 3 and the anode gas (oxygen) generated at the positive electrode 5 are generated in a ratio of 2:1, the volume ratio of the cathode water chamber in the pot 2 to the anode water chamber in the desorption container 4 (non-permeable tank 11) is preferably 2:1. With this ratio, the solubility of hydrogen is lower than that of oxygen, so the cathode water side becomes highly pressurized, preventing oxygen from being mixed into the cathode water.

(Pressure reduction mechanism 18)
1, the vacuum pump 12 of the pressure reducing mechanism 18 is connected to the sealing lid 9 via a suction hose 15. The vacuum pump 12 forcibly exhausts the air inside the pot 2 while the opening 2a of the pot 2 is airtightly sealed with the sealing lid 9, thereby reducing the pressure inside the pot 2 and degassing the dissolved gas in the raw water 1.

Furthermore, as shown in FIG. 1, the pressure reducing mechanism 18 may also use a pump 16 that is connected to the bottom of the pot 2 and sucks in the raw water 1. This pump 16 forcibly sucks out the raw water 1 from the sealed pot 2 to reduce the pressure inside and degas it. The pump 16 in FIG. 1 includes a cylinder 16a, a piston 16b that reciprocates within the cylinder 16a, a check valve 16c that is connected to the suction side and discharge side of the cylinder 16a, and a compression spring 16d that elastically pushes up the piston 16b. In this pump 16, the user pushes down the piston 16b to drain the raw water 1 sucked into the cylinder 16a, and the piston 16b is pushed up by the compression spring 16d to suck in the raw water 1 in the pump 16, forcibly draining the raw water 1 in the pot 2 and reducing the pressure. As shown in FIG. 1, an opening and closing valve 17 is provided between the pot 2 and the pump 16.

Furthermore, after decompression and degassing, the air space between the raw water 1 and the sealed lid 9 at the top of the pot can be eliminated and electrolysis can be performed in a sealed, pressurized state. By dissolving hydrogen in the degassed raw water 1 under further pressurization after decompression and degassing, the concentration of dissolved hydrogen gas can be made extremely high. Although not shown, the pressurization method can be, for example, a method of lifting the bottom with a rotating screw to squeeze out the air space, or a method of using spring air with a bottom-lifting method on a syringe (a vacuum pump 12 for degassing can be used), but it is not limited to these methods and any other structural method that can achieve a predetermined pressurized state can be adopted. In order to reduce the air space at the top of the pot 2 in advance, it can be made into a gently conical shape that narrows toward the center of the top of the pot 2.

(DC power supply 21)
The DC power supply 21 is connected to the negative electrode 3 and the positive electrode 5 via a lead wire 30 and an external connector 29. The positive electrode 5 is connected to the positive output terminal 21a of the DC power supply 21 by connecting a lead wire 30 via an external connector 29 fixed to the airtight lid 9. The negative electrode 3 is connected to the negative output terminal 21b of the DC power supply 21 via the external connector 29 fixed to the pot 2 and a lead wire 30.

The DC power supply 21 can apply a DC voltage that always flows a constant current to the negative electrode 3 and the positive electrode 5, but preferably applies a pulse voltage to reduce the particle size of the bubbles generated on the electrode surface. This DC power supply 21 shortens the time for applying the DC voltage to the electrodes, for example, by setting the period of the pulse voltage to 1 msec or less, preferably 100 μsec or less. A DC power supply 21 with a pulse voltage period of 1 msec or less has a pulse voltage frequency of 1 KHz or more, and a DC power supply 21 with a period of 100 μsec or less has a pulse voltage frequency of 10 KHz or more. This generation device suppresses the growth of bubbles on the electrode surface and reduces the size of the bubbles dispersed in the raw water 1 by extremely shortening the time for which a voltage is applied to the surface of the electrode, that is, the time width during which the electrode electrolyzes water to generate hydrogen. The DC power supply that outputs the pulse voltage can also vary the pulse voltage period, for example, in the range of 10 KHz to 1 MHz. The period for varying the frequency can be 1/100 to 1/10 of the frequency of the pulse voltage. The DC power supply that varies the frequency of the pulse voltage can vary the duration of the voltage applied to the electrode surface over time, forcing the bubbles that form on the surface to disperse into the raw water 1.

The DC power supply 21 in FIG. 1 includes a power supply circuit 22 and a current interruption circuit 23. The power supply circuit 22 outputs a direct current for electrolyzing the raw water 1. The power supply circuit 22 in FIG. 1 controls the amount of electricity flowing to the electrodes during electrolysis with the current interruption circuit 23, so that the hydrogen concentration of the hydrogen water produced in the pot 2 can be set to a set value.

The amount of hydrogen generated in the raw water 1 in the pot 2 by electrolysis is proportional to the integral of the electrolysis current, i.e., the amount of electricity. For raw water 1 with different electrical conductivities, the current value changes even when a constant voltage is applied to the negative electrode 3 and the positive electrode 5, and raw water 1 with low electrical conductivity has a smaller current flowing through the electrodes compared to raw water with high electrical conductivity, and less hydrogen is generated per unit time. In a device in which the amount of hydrogen generated varies depending on the electrical conductivity of the raw water 1, the electrolysis time changes to achieve a specified hydrogen concentration. This device cannot be used conveniently and effectively by all users to obtain the specified hydrogen concentration from raw water 1.

This problem can be solved by providing the power supply circuit 22 with a constant current circuit (not shown) that controls the output current to a constant current. The constant current circuit controls the voltage between the electrodes so that the current flowing through the negative electrode 3 and the positive electrode 5 is constant even if the conductivity of the raw water 1 changes and the electrical resistance between the electrodes changes. For this reason, when electrolyzing raw water 1 with low conductivity, the voltage between the electrodes is increased to increase the current to a set value, and when electrolyzing raw water 1 with high conductivity, the voltage between the electrodes is decreased to control the current between the electrodes to a set value. The DC power supply 21 equipped with a constant current circuit can electrolyze raw water 1 with different conductivities for a certain period of time to set the hydrogen concentration to a set value, so that all users can conveniently use the hydrogen water at their preferred concentration.

Furthermore, the DC power supply 21 with a constant current circuit can be used more conveniently by providing a current cutoff circuit 25 with a timer 27 that cuts off the electrode current when the electrolysis time of the raw water 1 reaches a set time. The time at which the timer 27 cuts off the electrode current is set to the time at which the raw water 1 is electrolyzed and the hydrogen concentration reaches a set value. The time at which the timer 27 cuts off the current is determined by calculating the integrated current value from the amount of raw water supplied to the pot 2, the amount of hydrogen generated, the solubility of the generated hydrogen in the raw water, and the required hydrogen concentration of the hydrogen water, and then calculating the electrolysis time from the integrated current value and the electrode current.

The DC power supply 21, in which the current interruption circuit 23 detects the integrated value of the electrode current and interrupts the current to the electrode, can make the hydrogen water in the pot 2 have a predetermined hydrogen concentration without providing a constant current circuit in the power supply circuit 22. As shown in FIG. 1, the DC power supply 21 includes a current detector 25 for detecting the current flowing through the electrode, a calculation circuit 24 for integrating the current value detected by the current detector 25, and a cutoff circuit 26 for comparing the integrated value of the current calculated by the calculation circuit 24 with a pre-stored set value and cutting off the current when the calculated set value becomes the set value. The DC power supply 21, in which a constant current circuit is not provided in the power supply circuit 22, detects the current flowing through the electrode with the current detector 25, since the electrode current changes with the conductivity of the raw water 1. The current value detected by the current detector 25 is calculated by the calculation circuit 24, and the integrated value of the current calculated by the calculation circuit 24 is compared with a pre-stored set value, and when the calculated set value becomes the set value, the cutoff circuit is controlled to cut off the current. This DC power supply 21 detects the electrode current and integrates the detected current value to detect the amount of electricity during electrolysis, so the electrode current is not kept constant, but the amount of electricity flowing when the raw water 1 is electrolyzed, i.e., the amount of hydrogen generated, is detected and the electrode current is cut off. This means that the raw water 1 in the pot 2 can be made into hydrogen water with a specified hydrogen concentration by passing electricity through the raw water 1 with different electrical conductivity without controlling the electrode current to a constant value.

The hydrogen water generating device 100 described above converts the raw water 1 in the pot 2 into hydrogen water through the following process.
(1) The desorption vessel 4 is placed in the pot 2, and raw water 1 is supplied into the pot 2 and the desorption vessel 4.
(2) The opening 2a of the pot 2 is sealed with a sealing lid 9.
(3) The pressure inside the pot 2 is reduced by the pressure reduction mechanism 18 to remove the dissolved gas from the raw water 1, and then the operation of the pressure reduction mechanism 18 is stopped.
(4) A DC power source 21 is connected to the negative electrode 3 and the positive electrode 5, and the DC power source 21 applies a voltage to the electrodes to electrolyze the raw water 1. After electrolysis, the raw water 1 in the pot 2 becomes hydrogen water, and the raw water 1 in the desorption container 4 becomes oxygen water.
(5) The airtight lid 9 is separated from the pot 2, and the desorption container 4 is removed from the pot 2, leaving only hydrogen water in the pot 2.

The hydrogen water production method and production device of the present invention are suitable for use in producing high-concentration hydrogen water.

100, 200...Generation device 1...Raw water 2...Pot 2a...Opening 3...Negative electrode 4...Desorption container 4a...Container body 4b...Microporous membrane 4c...Bottom lid 5...Positive electrode 6...Support ring 6a...Support part 7...Vertical rod 8...Extraction line 9...Sealing lid 9a...Through hole 10...Gasket 10a...Insertion part 11...Non-permeable tank 12...Vacuum pump 13...Check valve 13a...Valve seat 13b...Sphere 14...Pipe 15...Suction hose 16...Pump 16a...Cylinder 16b...Piston 16c...Check valve 16d...Compressor spring 17...Opening and closing valve 18...Pressure reduction mechanism 21...DC power source 21a...Positive output terminal 21b...Negative output terminal element 22...power supply circuit 23...current interruption circuit 24...arithmetic circuit 25...current detector 26...interruption circuit 27...timer 28...connector 28a...socket 29...external connector 30...lead wire 32...base 32a...storage section 33...fixing member 33a...guide arm 33b...buffer member 901...electrolyzed hydrogen water generating pot 902...pot body 903...water tank section 904...electrolysis processing section 904a...positive electrode 904b...negative electrode 905...ultrasonic vibration processing section 905a...ultrasonic transducer 905b...ultrasonic transducer driving circuit 906...vertical partition cylinder 907...diaphragm 908...electrical equipment section 908a...power supply section 908b...control section

Claims (9)

Inside the pot, which is open at the top,
A negative electrode that is detachably disposed;
A non-permeable tank that has ion permeability and prevents or limits water permeation,
A removable container having a positive electrode disposed therein is provided.
Supply raw water to the pot and the desorption vessel;
The pot is sealed and a vacuum is applied to degas the raw water;
The raw water is electrolyzed by passing current through the negative electrode in the pot and the positive electrode in the desorption container,
The raw water in the pot is converted into hydrogen water, and the raw water in the desorption container is converted into oxygen water,
The desorption vessel is removed from the pot and oxygenated water is removed;
A method for producing hydrogen water, comprising storing hydrogen water in the pot. A pot having an opening at the top;
A negative electrode that is detachably disposed inside the pot;
a removable container having a closed bottom and equipped with a positive electrode therein, the removable container being disposed inside the pot in a freely removable manner;
a sealing lid that is detachably connected to an upper opening of the pot and is capable of closing the opening of the pot ;
A pressure reducing mechanism for reducing the pressure inside the pot to degas it;
a DC power source connected to the negative electrode and the positive electrode;
Equipped with
The desorption container comprises:
A water-impermeable container that allows ions to pass through but prevents or limits the passage of water.
The pressure reducing mechanism reduces the pressure of the raw water in the pot and the desorption container to degas it,
The negative electrode to which the DC power supply is energized is
A hydrogen water generating device, characterized in that the raw water in the pot is converted into hydrogen water. The hydrogen water generating device according to claim 2 ,
The hydrogen water generating device is characterized in that the pot is made of metal and is used in combination with the negative electrode. The hydrogen water generating device according to claim 2 or 3 ,
The DC power supply,
A hydrogen water generating device characterized in that a pulse voltage having a period of 1 msec or less is applied to an electrode. The hydrogen water generating device according to any one of claims 2 to 4 ,
The desorption container comprises:
A container body that is water permeable and maintains a predetermined shape within the pot;
a microporous membrane laminated on the inner surface of the container body,
The microporous membrane is
A hydrogen water generating device characterized by being either a filter paper, a reverse osmosis membrane, or a semipermeable membrane. The hydrogen water generating device according to any one of claims 2 to 5 ,
The sealing lid has a through hole connected to the pressure reducing mechanism,
A check valve is connected to the through hole,
The check valve,
Passing air from the pot towards the pressure reducing mechanism;
This hydrogen water generating device is characterized in that it is connected in a direction that does not allow air to pass in the reverse direction. The hydrogen water generating device according to any one of claims 2 to 6 ,
The DC power supply,
A hydrogen water generating device characterized by having a constant current circuit that controls the electrolysis current flowing through raw water via electrodes to a set current. The hydrogen water generating device according to any one of claims 2 to 7 ,
The DC power supply,
When the raw water electrolysis time reaches the set time,
A hydrogen water generating device characterized by having a timer that cuts off electrode current . The hydrogen water generating device according to any one of claims 2 to 8 ,
The DC power supply,
A hydrogen water generating device comprising a current cut-off circuit which detects when an integrated value of an electrode current reaches a predetermined electrical quantity and cuts off the current to the electrode.

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