JP5747390B2 - Hydrogen water production apparatus and electrode used therefor - Google Patents

Description

  The present invention relates to a hydrogen water production apparatus and an electrode used therefor, and more particularly to a hydrogen water production apparatus for easily producing hydrogen water in which hydrogen is dissolved at a high concentration and an electrode used therefor.

  Hydrogen water is water in which hydrogen is dissolved at a high concentration. In recent years, it has attracted attention as reducing and removing active oxygen in the human body, which is said to be harmful to human health, by drinking hydrogen water. ing. In addition to being used as a health drink, hydrogen water is attracting attention for industrial use and the like.

  As a method for producing hydrogen water, it can be roughly divided into a method in which hydrogen gas is dissolved in water under high pressure (for example, Patent Document 1), and water is put in an electrolytic cell of an electrolyzer, and between an anode and a cathode. There is a method of generating hydrogen on the cathode side by applying a voltage (for example, Patent Document 2).

  However, a method of dissolving hydrogen gas in water under high pressure must use a high-pressure hydrogen gas cylinder that is a dangerous substance, and is not suitable as a method for easily producing hydrogen water in general households. . Therefore, as a method for easily producing hydrogen water, it is preferable to produce it by electrolysis of water.

Japanese Patent No. 3606466 JP 2002-254078 A

  By the way, the hydrogen concentration of the commercially available hydrogen water is about 0.2 to 1.2 ppm, which requires a device with high electrolysis efficiency, so that the device becomes larger and smaller for general household use. Difficult to do. In addition, due to the diversification of consumer needs timing and places of interest, compact and portable hydrogen water that can be easily produced on the spot when you want to drink hydrogen water at sports destinations, destinations, and workplaces. A manufacturing device is desired.

The present invention has been made in view of such circumstances, and provides a compact hydrogen water production apparatus that can generate hydrogen with high generation efficiency even if the apparatus is downsized and is suitable for home use. With the goal.
Furthermore, the present invention provides a portable hydrogen water production apparatus that can easily produce hydrogen water at any time and at any place by adopting a configuration in which the apparatus is miniaturized and an internal power source is used as a DC power source. For the purpose.

  In order to achieve the above object, a hydrogen water production apparatus according to the present invention includes a plurality of titanium oxide electrodes constituting an anode and a cathode, and the plurality of titanium oxides in a hydrogen water production apparatus for producing hydrogen water. A direct current power source for applying a voltage to the electrodes, an ultraviolet irradiation means having an ultraviolet light guide for irradiating the plurality of titanium oxide electrodes with ultraviolet light, and a control means for switching and controlling the polarity of the plurality of titanium oxide electrodes. The titanium oxide electrode and the ultraviolet light guide are submerged in water for producing hydrogen water.

  According to the hydrogen water production apparatus of the present invention, when a voltage is applied from a DC power source in a state where a plurality of (for example, two) titanium oxide electrodes are submerged in water, electrolysis of the water causes the titanium oxide electrode of the anode to Generates oxygen and generates hydrogen from the titanium oxide electrode of the cathode.

  Further, by irradiating the titanium oxide electrode with ultraviolet rays from the ultraviolet light guide, oxygen and hydrogen are generated by photolysis of water.

  Moreover, since the hydrophilicity of the electrode surface is increased by irradiating the titanium oxide electrode with ultraviolet rays, the generated hydrogen and oxygen are easily separated from the electrode.

  In addition, when the titanium oxide electrode is irradiated with ultraviolet rays, the electrode is self-cleaning due to the increase in hydrophilicity of the electrode surface and the decomposition effect of the organic matter, so that the contamination of the electrode can be prevented.

  In addition, by switching the polarity of the titanium oxide electrode, it is possible to prevent mineral components in water from adhering to the electrode and degrading the electrolysis performance.

  With these features, the hydrogen water production apparatus according to the present invention can increase the hydrogen generation efficiency as compared with the case of only electrolysis. Therefore, since hydrogen can be generated with high generation efficiency even if the apparatus is downsized, a compact hydrogen water production apparatus suitable for home use can be provided.

  Since the hydrogen water production apparatus of the present invention can be miniaturized as described above, if an internal power source (battery, battery) is used as a DC power source, it can be carried not only indoors but also outdoors. be able to. Therefore, the hydrogen water production apparatus of the present invention can easily produce hydrogen water at a favorite place at any time.

  In the hydrogen water production apparatus of the present invention, the surface of the titanium oxide electrode is preferably formed in a porous shape. Thereby, since the surface area of an electrode becomes large, the hydrogen generation efficiency by electrolysis or photolysis can be improved further.

  In the hydrogen water production apparatus of the present invention, it is preferable that two parallel titanium oxide electrodes are arranged opposite to each other with a U-shaped ultraviolet light guide interposed therebetween. Thereby, an ultraviolet-ray can be uniformly irradiated with respect to two titanium oxide electrodes.

  In the hydrogen water production apparatus of the present invention, three parallel titanium oxide electrodes are arranged at the apex position of an equilateral triangle in a cross-sectional view, and the ultraviolet light guide path has an outer center position of the equilateral triangle and the equilateral triangle in the cross-sectional view. It is preferable that the ultraviolet light guides are arranged on three perpendicular bisectors on each of the three sides, and the respective ultraviolet light guides are connected to one line. Thereby, an ultraviolet-ray can be uniformly irradiated with respect to three titanium oxide electrodes.

The hydrogen water production apparatus of the present invention includes the DC power source, the light emission source of the ultraviolet irradiation means, a main body casing that houses the control means, and a cap that houses the plurality of titanium oxide electrodes and the ultraviolet light guide. It is preferably formed into a fountain pen shape.
If it is formed in the shape of a fountain pen in this way, it does not get in the way even if it is carried, and it does not seem to be a hydrogen water production device in appearance, so it looks good.

  In the hydrogen water production apparatus of the present invention, it is preferable that the main body casing is provided with a lid member that is screwed into a cap screw of the bottle mouth to seal the bottle mouth.

  In this case, hydrogen water is produced using water from a water bottle, and the body casing is attached to the water bottle by screwing the lid member into the bottle mouth with the titanium oxide electrode and the ultraviolet light guide inserted in the bottle water. And can be fixed.

  In the hydrogen water production apparatus of the present invention, it is preferable that the main body casing is provided with a clip member that fits into the upper end of the cup member.

This is a case where hydrogen water is produced by putting water into a cup member. With the titanium oxide electrode and the ultraviolet light guide inserted in the water of the cup member, the clip member is fitted into the upper end of the cup member, The casing can be firmly fixed to the cup member.
In addition, it is more preferable that the main body casing includes both a lid member and a clip.
In addition, the titanium oxide electrode of the present invention is an electrode used in the hydrogen water production apparatus.
Furthermore, the titanium oxide electrode of the present invention is composed of Ti (titanium), TiO ₂ (titanium oxide), Ni (nickel), Fe (iron), Cr (chromium), Pt (platinum), Co (cobalt), Rh (rhodium). ), And the ratio of TiO ₂ after sintering is 3 to 5% by mass.

  According to the hydrogen water production apparatus of the present invention, hydrogen can be generated with high generation efficiency even if the apparatus is miniaturized. Therefore, a compact hydrogen water production apparatus suitable for home use can be provided. In addition, since the device can be downsized, a portable hydrogen water production device that can easily produce hydrogen water at any time and place by adopting a configuration using an internal power source as a DC power source. Can be provided.

1 is an exploded perspective view of a hydrogen water production apparatus according to an embodiment of the present invention. The perspective view which assembled the hydrogen water production device before attaching a main part casing and a cap External view after the assembly of the hydrogen water production device is completed by attaching the main casing and cap Sectional drawing along the 2-2 line which shows the preferable arrangement | positioning relationship between two titanium oxide electrodes and an ultraviolet light guide Sectional drawing which shows the preferable arrangement | positioning relationship between three titanium oxide electrodes and an ultraviolet light guide Diagram of hydrogen water production device set in a bottle containing drinking water Diagram of hydrogen water production device set in a cup containing drinking water

Hereinafter, preferred embodiments of a hydrogen water production apparatus according to the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is an exploded perspective view of a hydrogen water production apparatus 10 according to an embodiment of the present invention, and FIG. 2 is a perspective view assembled until a main body casing 12 and a cap 14 are attached. FIG. 3 is an external view after the assembly is completed by attaching the main body casing 12 and the cap 14.
In the hydrogen water production apparatus 10 described below, an example of a portable apparatus that includes two titanium oxide electrodes 16 and 16 and uses a dry battery 18 as a DC power source will be described.

  As shown in FIGS. 1 to 3, the hydrogen water production apparatus 10 mainly applies a voltage to the two titanium oxide electrodes 16, 16 constituting the anode and the cathode, and the two titanium oxide electrodes 16, 16. A dry battery 18 to be applied, an ultraviolet irradiation means 20 having an ultraviolet light guide 20A for irradiating the two titanium oxide electrodes 16 and 16 with ultraviolet light, and a control means 22 for switching and controlling the polarities of the two titanium oxide electrodes 16 and 16. , And a power switch 24. The dry battery holder 30 provided with these members 16 to 24 and the electric substrate 28 is supported by the holder member 26 and is externally mounted on the main body casing 12 and the cap 14 so as to have a fountain pen-like appearance.

The titanium oxide electrode 16 is formed in a long rod shape. The titanium oxide electrode 16 is made of, for example, Ti (titanium), TiO ₂ (titanium oxide), Ni (nickel), Fe (iron), Cr (chromium), Pt (platinum), Co (cobalt), or Rh (rhodium). It can also be formed by powder metallurgy using powder, and Ti (titanium) and TiO ₂ (titanium oxide) can be formed by powder metallurgy around an electrode core formed of a stainless steel rod. As for the mass ratio of each metal after sintering performed by powder metallurgy, the ratio of TiO ₂ is preferably 3 to 5 mass% of the whole. Thus, the effect based on various TiO ₂ to be described later is sufficiently exhibited. In addition, it is preferable to include platinum group elements such as Pt (platinum) and Rh (rhodium) and Co (cobalt) because the decomposition of water can be promoted.

Further, when viewed in Ti and portions the ratio of TiO ₂ was formed by powder metallurgy, Ti concentration 5-7% by weight, it is preferably contained as TiO ₂ concentration of 3 to 5 wt%. Thus, by forming the surface of the titanium oxide electrode 16 with a porous sintered metal layer, the surface area of the electrode can be increased and the contact area with water to be electrolyzed can be increased. In addition, the amount of titanium oxide present on the electrode surface can be increased. Thereby, the electrolysis efficiency of water and the photolysis efficiency of water can be improved.
The dry battery 18 is not particularly limited, but a 12V battery for a camera can be preferably used.

  The ultraviolet irradiation means 20 includes a light emission source 20B that emits ultraviolet light and an ultraviolet light guide 20A, and a UV-LED (ultraviolet LED) can be suitably used as the light emission source 20B. As the ultraviolet light guide path 20A, a U-shaped rod-shaped body can be suitably used, and a resin-made or glass-made rod-shaped body or tube capable of transmitting ultraviolet rays can also be used. A twist preventing plate 20D for preventing twisting of the ultraviolet light guide is provided at the tip (U-shaped portion) of the ultraviolet light guide 20A.

Further, for example, a visible light LED is used as the pilot LED so that the ultraviolet light emission can be visually confirmed. When the ultraviolet light is emitted from the light emission source 20B, the ultraviolet light guide 20A is simultaneously illuminated by the visible light LED 20C. It is preferable to make it. Since the wavelength region of the ultraviolet light emitted from the light emission source 20B is in the range of 10 to 400 nm, the light emission color of the visible light LED 20C is more preferably a blue wavelength around 400 nm where the user can easily imagine the emission of ultraviolet light.
Further, by making the visible light LED 20C an LED capable of emitting multiple colors, for example, the normal operating state is blue, the state where the battery is insufficient is orange, the current to the titanium oxide electrode due to overcurrent, etc. It is even more preferable because the operating state of the present apparatus can be finely displayed by the emission color of the visible light LED 20C, such as setting the stop state to red.
FIG. 4 shows the positional relationship between the two titanium oxide electrodes 16 and 16 and the U-shaped ultraviolet light guide 20A, and is a cross-sectional view taken along line 2-2 of FIG. As shown in FIG. 4, it is preferable that two parallel titanium oxide electrodes 16, 16 are opposed to each other with a U-shaped ultraviolet light guide 20 </ b> A interposed therebetween. Thereby, it is possible to irradiate the two titanium oxide electrodes 16, 16 uniformly from the ultraviolet light guide 20 </ b> A.

  In the present embodiment, two titanium oxide electrodes 16 and 16 are described. However, when the number of titanium oxide electrodes 16 is three, the relationship with the ultraviolet light guide 20A is shown in the sectional view of FIG. It is preferable to arrange as shown in FIG. That is, as shown in FIG. 5, three parallel titanium oxide electrodes 16, 16... Are arranged at the apex position of the equilateral triangle, and on the perpendicular bisector of each of the equilateral position of the equilateral triangle and the three triangle sides. It is preferable that each of the ultraviolet light guides 20A is disposed at the position, and each of the ultraviolet light guides is connected to one.

  Of course, it is preferable that this arrangement be precisely located at this position, but it does not have to be strictly at this position, and it may be arranged in the vicinity of this position. By disposing in the vicinity of this position, it is possible to efficiently irradiate ultraviolet rays onto many areas of the surfaces of the three titanium oxide electrodes 16, 16. In this case, as shown in FIG. 5, the remaining three ultraviolet light guides are arranged at an angular interval of 120 degrees around the central ultraviolet light guide as shown in FIG. Thereby, the three titanium oxide electrodes 16, 16... Can be evenly irradiated with ultraviolet rays.

  The control means 22 mainly performs switching control for switching the polarities of the two titanium oxide electrodes 16, 16, switching timing control, continuous operation time control for the hydrogen water production apparatus 10, current stop control during overcurrent, and the like. IC chip can be preferably used. Thus, by switching the polarities of the two titanium oxide electrodes 16, 16, it is possible to prevent the mineral components in the water from adhering to the electrodes during the electrolysis of water and degrading the electrolysis performance. Although the polarity switching timing varies depending on the mineral component concentration of water, it is generally preferable to switch at intervals of 2 to 15 seconds. Moreover, as control of continuous operation time, if the hydrogen water manufacturing apparatus 10 is operated for 30 seconds, for example, the power supply of the hydrogen water manufacturing apparatus 10 can be turned off.

The power switch 24 is a switch for turning on and off the power supply, and for example, a push button type can be suitably used.
The holder member 26 can be formed, for example, by processing or injection molding (injection molding) a resin cylindrical rod. One end side (side that supports the power switch 24) of the holder member 26 is formed in a cylindrical shape, and the other end side (side that supports the titanium oxide electrode 16 and the ultraviolet light guide 20A) is formed in a cylindrical shape. Further, the center portion of the holder member 26 is formed in a semi-cylindrical shape. Then, the power switch 24 is assembled in the cylindrical space on one end side of the holder member 26. The cylindrical portion on the other end side of the holder member 26 is provided with four through holes in the axial direction. The rod-shaped titanium oxide electrode 16 is formed in each of the two through holes. The proximal end is inserted. In addition, both ends of the U-shaped ultraviolet light guide 20A are inserted into the remaining two through holes. In a semi-cylindrical space formed at the center of the holder member 26, a dry battery holder 30 provided with an electric substrate 28 is assembled, and the dry battery 18 is detachably set in the dry battery holder 30.

  On the back side of the electric substrate 28 (the other end side of the holder member 26), two electric terminals 32 and 32 that are in contact with the base end portions of the two titanium oxide electrodes 16 and 16 are provided. Further, a UV-LED 20B and a visible light LED 20C are provided on the back side of the electric substrate 28, and are connected to both ends of the ultraviolet light guide 20A. On the other hand, the control means 22 (IC chip) is provided on the surface side of the electric substrate 28.

  And the electrical wiring for the hydrogen water production apparatus 10 to perform the electrolysis and photolysis of water is the power switch 24, the dry battery holder 30, the electric board 28 (electric terminal 32, UV-LED 20B, visible light LED 20C, control means). 22). In this case, when an overcurrent flows through the hydrogen water production apparatus 10 such as when a metal object comes into contact with the titanium oxide electrode 16 to cause a short circuit (short circuit), the visible light LED 20C blinks and the overcurrent further increases. It is preferable to turn the power off when Thereby, the electrical failure of the hydrogen water manufacturing apparatus 10 can be prevented.

  Further, a ring-shaped large-diameter portion 26A having a diameter larger than the diameter of the holder member 26 is formed on the other end side of the holder member 26, and the cylindrical main body casing 12 is fitted from one end side of the holder member 26. And abuts against the large diameter portion 26A. Further, a female screw is engraved on the outer surface of the holder member 26 on one end side, and a male screw formed on the inner peripheral surface of the ring-shaped stopper member 34 is screwed into this female screw. Thereby, the power switch 24, the dry battery holder 30, and the holder member 26 that supports the electric substrate 28 are accommodated in the main body casing 12, and the main body casing 12 can be prevented from being detached from the holder member 26 by the stop member 34.

  Further, the cap 14 is fitted from the other end side of the holder member 26 and abuts on the large diameter portion 26 </ b> A of the holder member 26. As a result, the two titanium oxide electrodes 16 and 16 and the ultraviolet light guide 20A are accommodated in the cap 14, and as shown in FIG. 3, the hydrogen water production apparatus 10 having an outer appearance formed in a fountain pen shape is formed. By forming the holder member 26 from a light-transmitting material, part of the light emitted from the visible light LED 20C during the operation of the apparatus is scattered inside the holder member 26. A part of the light is emitted to the outside from the large-diameter portion 26A. Therefore, even after the cap 14 is fitted, the operation state such as forgetting to turn off the power switch 24 can be confirmed.

  FIG. 6 is a diagram for producing hydrogen water by the hydrogen water production apparatus 10 using a commercially available drinking water bottle 36 containing drinking water. In the hydrogen water producing apparatus 10 according to the embodiment of the present invention, for convenience in using the commercially available drinking water bottle 36 as described above, the bottle mouth 36A is screwed into the cap screw 36B of the bottle mouth 36A. A lid member 38 for sealing may be further provided. The lid member 38 may be provided as a separate body that is detachable from the hydrogen water production apparatus 10 or may be fixed to the hydrogen water production apparatus 10.

  The lid member 38 is formed with a screw 38B that can be screwed into the cap screw 36B of the bottle mouth 36A and a ring-shaped groove 38A for mounting the O-ring 50 on the inner peripheral surface thereof. Thus, when the lid member 38 is mounted on the main body casing 12, the lid member 38 can be fixed at an arbitrary position on the main body casing 12 by the frictional force of the O-ring 50, and the cap screw 36B and the screw 38B. And the O-ring 50 is pressure-bonded to the tip of the bottle mouth 36A, and the water in the drinking water bottle 36 can be prevented from leaking outside.

  Thereby, the main body casing 12 can be firmly fixed to the drinking water bottle 36 with the two titanium oxide electrodes 16 and 16 and the ultraviolet light guide 20 </ b> A inserted straight into the drinking water of the drinking water bottle 36.

FIG. 7 is a diagram for producing hydrogen water by the hydrogen water production apparatus 10 using a cup 40 containing drinking water. In the hydrogen water producing apparatus 10 according to the embodiment of the present invention, it is preferable to provide the lid member 38 with a clip member 42 that fits into the upper end of the cup 40 in order to improve the convenience when the cup 40 is used. Thereby, the main body casing 12 is inserted into the cup 40 by inserting the clip member 42 into the upper end of the cup 40 in a state where the two titanium oxide electrodes 16 and 16 and the ultraviolet light guide 20A are inserted into the drinking water of the cup 40. Can be fixed firmly.
Further, as shown in FIGS. 6 and 7, the main body casing 12 is more preferably provided with both the lid member 38 and the clip member 42.

Next, a method for producing hydrogen water from drinking water using the hydrogen water production apparatus 10 configured as described above will be described. The description will be given with an example of a commercially available drinking water bottle 36 in FIG.
The hydrogen water produced by the hydrogen water production apparatus 10 of the present invention contains oxygen in addition to hydrogen, but there is no health problem even if drinking water in which oxygen is dissolved.

  First, the cap (not shown) of the commercially available drinking water bottle 36 is removed, and the two titanium oxide electrodes 16 and 16 and the ultraviolet light guide 20A of the hydrogen water production apparatus 10 are inserted into the bottle through the bottle mouth 36A. The lid member 38 of the main body casing 12 is screwed into the bottle opening 36A of the bottle. Thereby, as shown in FIG. 6, the hydrogen water producing apparatus 10 is fixed to the drinking water bottle 36 in a state where the two titanium oxide electrodes 16 and 16 and the ultraviolet light guide 20 </ b> A are submerged in the drinking water.

  Next, the power switch 24 of the hydrogen water production apparatus 10 is pressed to turn on the power, and a voltage is applied to the two titanium oxide electrodes 16, 16, and the two titanium oxide electrodes 16, 16 are applied from the ultraviolet light guide 20 A. Irradiate ultraviolet rays. Moreover, the control means 22 switches the polarity of the two titanium oxide electrodes 16 and 16 at intervals of 2 seconds to 15 seconds.

  Thus, oxygen is generated from the anode titanium oxide electrode 16 and hydrogen is generated from the cathode titanium oxide electrode 16 by electrolysis of water. Furthermore, by irradiating the two titanium oxide electrodes 16 and 16 with ultraviolet rays from the ultraviolet light guide 20A, oxygen and hydrogen are generated by photolysis of water (Honda-Fujishima effect) and negative ions are generated.

Therefore, as described below, the hydrogen water production apparatus 10 according to the present invention can increase the hydrogen generation efficiency as compared with the case where hydrogen water is produced only by conventional electrolysis.
(1) Since both hydrogen generation by electrolysis and hydrogen generation by photolysis are performed in parallel, the hydrogen generation efficiency is higher than in the case of only electrolysis.

  (2) By irradiating the titanium oxide electrode 16 with ultraviolet rays, the hydrophilicity of the electrode surface is increased, so that generated hydrogen and oxygen are easily separated from the electrode. This prevents a reduction in electrolysis performance due to oxygen or hydrogen bubbles adhering to the electrode, thereby further increasing hydrogen generation efficiency. Then, since the generated hydrogen and oxygen are easily separated from the two titanium oxide electrodes 16, 16, it is easy to form small bubble hydrogen, so that hydrogen is easily dissolved in water.

  (3) When the two titanium oxide electrodes 16 are irradiated with ultraviolet rays, the hydrophilicity of the electrode surface increases, so that the water gets wet from under the dirt on the electrode surface and the dirt is removed, and organic substances attached to the electrode surface, etc. The self-cleaning effect that decomposes dirt can be demonstrated. Thereby, since the electrode surface can be kept normal, hydrogen generation efficiency can be maintained in a high state.

(4) By switching the polarities of the two titanium oxide electrodes 16, 16, it is possible to prevent mineral components in water from adhering to the two titanium oxide electrodes 16, 16 and reducing the electrolytic performance.
(5) Further, as a secondary effect of ultraviolet irradiation, water can be sterilized.

  Thus, hydrogen generation by photolysis is used in combination with hydrogen generation by electrolysis, and the polarity of the electrodes is switched at predetermined intervals, so that the efficiency of hydrogen generation by electrolysis can be synergistically increased. Accordingly, even if the apparatus is downsized, hydrogen can be generated with high generation efficiency. As described above, the small-sized hydrogen water production apparatus 10 suitable for home use can be provided.

  As a result of actually making a prototype of the hydrogen water production apparatus having the above-described configuration described in this embodiment, the length was about 18 cm and the diameter was about 2 cm. Moreover, as a result of manufacturing hydrogen water with a prototype, it was able to be 0.2-1.2 ppm which is the hydrogen concentration of commercially available hydrogen water.

  Furthermore, since the apparatus can be downsized, a configuration using an internal power source (dry battery, battery) as a DC power source can be employed. Thereby, the portable hydrogen water manufacturing apparatus 10 which can manufacture hydrogen water easily at a favorite place at any time can be provided.

  In the embodiment of the hydrogen water production apparatus 10 of the present invention described above, the example of a portable apparatus including two titanium oxide electrodes 16 and 16 and using a dry battery 18 as a DC power source has been described. It is not limited to this. For example, three or more titanium oxide electrodes 16, 16... May be used, and instead of the dry battery 18, a converter (not shown) for converting AC power into DC power and a voltage variable device (not shown) are used. You may supply a power supply from a household outlet using the power supply device (not shown) provided.

  When three or more titanium oxide electrodes 16, 16,... Are used, it is preferable to increase the surface area of the cathode where hydrogen is generated by increasing the number of cathodes than the number of anodes.

  DESCRIPTION OF SYMBOLS 10 ... Hydrogen water production apparatus, 12 ... Main body casing, 14 ... Cap, 16 ... Titanium oxide electrode, 18 ... Dry cell, 20 ... Ultraviolet irradiation means, 20A ... Ultraviolet light guide, 20B ... Ultraviolet light source, 20C ... Blue LED, 20D ... Anti-twisting plate, 22 ... Control means, 24 ... Power switch, 26 ... Holder member, 26A ... Large diameter part, 28 ... Electric substrate, 30 ... Dry cell holder, 32 ... Electric terminal, 34 ... Stopping member, 36 ... Beverage Water bottle, 36A ... Bottle mouth, 36B ... Cap screw, 38 ... Lid member, 38A ... Ring groove, 38B ... Screw, 40 ... Cup, 42 ... Clip member, 50 ... O-ring

Claims (8)

In a hydrogen water production apparatus for producing hydrogen water,
A plurality of titanium oxide electrodes constituting an anode and a cathode;
A DC power source for applying a voltage to the plurality of titanium oxide electrodes;
An ultraviolet irradiation means having an ultraviolet light guide for irradiating the plurality of titanium oxide electrodes with ultraviolet rays;
Control means for switching and controlling the polarity of the plurality of titanium oxide electrodes;
A hydrogen water production apparatus using the titanium oxide electrode and the ultraviolet light guide path in water for producing hydrogen water.   The hydrogen water production apparatus according to claim 1, wherein the DC power source is an internal power source such as a dry battery or a battery.   The hydrogen water production apparatus according to claim 1, wherein a surface of the titanium oxide electrode is formed in a porous shape.   The hydrogen water production apparatus according to any one of claims 1 to 3, wherein two parallel titanium oxide electrodes are disposed to face each other with a U-shaped ultraviolet light guide interposed therebetween.   In the hydrogen water production apparatus, three parallel titanium oxide electrodes are arranged at the apex position of an equilateral triangle in a cross-sectional view, and the ultraviolet light guide path is an outer center position of the equilateral triangle and three sides of the equilateral triangle in the cross-sectional view. The hydrogen water producing apparatus according to any one of claims 1 to 3, wherein each of the ultraviolet light guides is arranged on a vertical bisector of the first and second ultraviolet light guides. The hydrogen water production apparatus
A body casing that houses the DC power source, a light source of the ultraviolet irradiation means, and the control means;
A cap for housing the plurality of titanium oxide electrodes and the ultraviolet light guide;
The hydrogen water production apparatus according to any one of claims 2 to 5, wherein the hydrogen water production apparatus is formed into a fountain pen shape.   The hydrogen water production apparatus according to claim 6, wherein the main body casing is provided with a lid member that is screwed into a cap screw of the bottle mouth to seal the bottle mouth.   The apparatus for producing hydrogen water according to claim 6 or 7, wherein the main body casing is provided with a clip member that fits into an upper end of the cup member.

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