JP6994780B2 - Hydrogen water generator - Google Patents

Description

The present invention relates to a hydrogen water generator that produces hydrogen water by electrolysis of water.

A device is known in which an electrode is placed in the water of an electrolytic cell and hydrogen water containing hydrogen is generated by electrolysis. For example, the electrolytic water generator described in Patent Document 1 includes an electrolytic unit that electrolyzes water and a power supply unit that supplies power to the electrolytic unit, and the electrolytic unit includes an electrolytic tank connected in parallel with each other. Therefore, even when a large amount of electrolytically reduced water is required, such as in vegetable cultivation, a large amount of electrolytically reduced water can be generated inexpensively by using an electrolytic water generator equipped with a plurality of general-purpose electrolytic tanks. Is.

Further, the hydrogen water production apparatus described in Document 2 is a water electrolysis apparatus that electrolyzes water to generate hydrogen and oxygen, and a hydrogen and oxygen nanobubbles are generated in the electrolyzed water generated by the electrolysis. It is equipped with a nanobubble generator, which stores electrolyzed water and has a liquid storage tank formed of a closed pressure-resistant container, and the gas generated by electrolysis is stored in the electrolyzed water in the liquid storage tank. It is equipped with a gas discharge means for discharging at high pressure.

Japanese Unexamined Patent Publication No. 2016-131963 Japanese Unexamined Patent Publication No. 2015-150512

By the way, in the electrolyzed water generator of Patent Document 1, a plurality of (three in this case) electrolytic cells are provided in the electrolytic unit to generate a large amount of electrolytically reduced water, but more electrolyzed water can be obtained. Therefore, it is necessary to further increase the number of electrolytic cells, which causes a problem that the device becomes large and lacks expandability, versatility, etc. due to securing a place.
Further, the hydrogen water production apparatus of Patent Document 2 is provided with a water electrolysis apparatus and a nanobubble generator, and has a problem that the apparatus is complicated and economical because it uses a pressure resistant container or the like.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a hydrogen water generator which efficiently generates a large amount of hydrogen water and is also excellent in functionality and economy.

In order to solve the above technical problems, as shown in FIG. 1 and the like, the hydrogen water generator according to the present invention has three or more mesh-like electrode plates 6 and the above-mentioned electrode plates 6 facing each other at predetermined intervals. A voltage is applied to the electrolytic tank 4 and each of the electrode plates 6 which are arranged together and have a water inlet 30 on one side of the array of the electrode plates 6 and a water discharge port 32 on the other side. , A power supply circuit unit 11 in which a current is passed between the adjacent electrode plates 6 and between the electrode plates 6 interposed therebetween to perform electrolysis, and the injection port 30 of the electrolytic tank 4 is provided. Water is injected into the water, and the water is moved from the injection port 30 side to the discharge port 32 side, and the moving water is electrolyzed by the electrode plate 6 to generate an aqueous solution containing hydrogen in the water. Is discharged from the discharge port 32.

The hydrogen water generator according to the present invention has a configuration in which the number of the electrode plates 6 is in the range of 4 or more and 16 or less.

The power supply circuit unit 11 of the hydrogen water generator according to the present invention applies an AC voltage between specific electrode plates 6 in the electrode plate 6, and applies to electrode plates 6 other than the specific electrode plate 6. It is configured to apply a DC voltage to perform electrolysis.

The power supply circuit unit 11 of the hydrogen water generator according to the present invention applies an AC voltage between specific electrode plates 6 intervening with other electrode plates 6 among the electrode plates 6, and the specific electrodes. A DC voltage is applied to the electrode plates 6 other than the plate 6, and the polarity of the DC voltage is periodically switched so that electrolysis is performed.

In the power supply circuit unit 11 of the hydrogen water generator according to the present invention, the electrode plates 6 are made into a set of four consecutive electrodes, and the other electrode plates 6 are interposed in each set of the electrode plates 6. A configuration in which an AC voltage is applied between the specific electrode plates 6 and a DC voltage is applied to the electrode plates 6 other than the specific electrode plates 6 (including the above-mentioned other electrode plates 6) to perform electrical decomposition. Is.
Here, for example, when a low DC voltage (ground) is applied to the electrode plate 6, a specific electrode plate to which the potential (V +) at a high time point of the AC voltage is applied toward the (all) electrode plates 6 Make the current (direct current) flow from 6.
Further, for example, when the polarity of the DC voltage is switched and a high DC voltage (V +) is applied to the electrode plate 6, a specific time point when a low potential (ground) of the AC voltage is applied from the (all) electrode plates is specified. Make a current (direct current) flow toward the electrode plate.

In the hydrogen water generator according to the present invention, the injection port 30 is provided near the lower part of the electrolytic cell 4 to inject water, while the discharge port 32 is provided near the upper part of the electrolytic cell 4 to inject water. The water is moved from the injection port 30 toward the discharge port 32 and from the bottom to the top, and the moving water is electrolyzed by each of the electrode plates 6 and discharged from the discharge port 32.

The hydrogen water generator according to the present invention is provided with a switching valve that communicates with the discharge port 32, and has a flow path through which the aqueous solution discharged from the discharge port 32 passes through the filter 12 and a flow that does not pass through the filter 12. It is a configuration that can be switched between the road and the road.

The hydrogen water generator according to the present invention sucks the storage tank 16 for storing the aqueous solution discharged from the discharge port 32 of the electrolytic tank 4 and the aqueous solution in the storage tank 16 and distributes the aqueous solution to the electrolytic tank 4. It has a pump 14, and the aqueous solution electrolyzed in the electrolytic tank 4 is supplied to the storage tank 16 by the pump 14, while the aqueous solution in the storage tank 16 is sucked and sent to the electrolytic tank 4. The circulation flow path 62 for electrolyzing this is driven again to increase the hydrogen concentration in the aqueous solution.
Here, a control unit 10 for managing the operating status of the hydrogen water generator is provided, and the time for operating the pump 14 to circulate the circulation flow path is registered in the control unit 10 as the circulation time of the circulation flow path 62. Therefore, the hydrogen concentration can be adjusted by this circulation time.

According to the hydrogen water generator according to the present invention, three or more reticulated electrode plates are arranged facing each other, an electrolytic tank having an inlet on one side and an outlet on the other side, and adjacent electrode plates. It has a power supply circuit unit that allows current to flow between them to perform electrolysis, and adopts a configuration that electrolyzes the water moving in the electrolytic tank with an electrode plate to generate an aqueous solution containing hydrogen, so it is efficient. A large amount of hydrogen-containing aqueous solution (hydrogen water) can be obtained, the device can be miniaturized, and it is economically excellent.

According to the hydrogen water generator according to the present invention, the power supply circuit unit adopts a configuration in which an AC voltage is applied between specific electrode plates and a DC voltage is applied to other electrode plates to perform electrolysis. There is an effect that electrolysis can be efficiently performed between the electrode plates, the device such as an electrolytic tank can be miniaturized, and a functionally excellent hydrogen water generation device can be obtained.

According to the hydrogen water generator according to the present invention, the power supply circuit unit applies an AC voltage between specific electrode plates interposed with other electrode plates and a DC voltage to the other electrode plates, and this DC is applied. Since the polarity of the voltage is switched periodically and electrolysis is performed, the electrolysis can be efficiently performed between all the electrode plates, so that the equipment such as the electrolytic tank can be miniaturized and the electrode plate can be used. It also has the effect of removing deposits (inorganic substances, etc.) and obtaining a functionally superior hydrogen water generator.

According to the hydrogen water generator according to the present invention, an AC voltage is applied between specific electrode plates 6 having another electrode plate interposed therebetween in a set of four electrode plates, and a DC voltage is applied to the other electrode plates. Is configured to perform electrolysis, so that current (DC) can flow between all adjacent electrode plates, and electrolysis can be performed efficiently. Further, in the combination of four plates, the application of AC voltage and the application of DC voltage are alternated between the electrode plates, and a current may be passed between the pairs of the other pairs of the electrode plates 6 to perform electrolysis. It can be done and is efficient.

According to the hydrogen water generator according to the present invention, the injection port is provided near the lower part of the electrolytic cell, while the discharge port is provided near the upper part of the electrolytic cell, and the water that is injected and moves from the lower side to the upper side is electrified by each electrode plate. Since the structure that decomposes is adopted, the water in the electrolytic cell can be moved evenly without stagnation, the electrolysis can be performed well, and the retention of water can be prevented.

According to the hydrogen water generator according to the present invention, a switching valve that communicates with the discharge port is provided so that the flow path that passes through the filter and the flow path that does not pass through can be switched. It has the effect of being able to remove chlorine-based substances and the like.

According to the hydrogen water generator according to the present invention, the aqueous solution electrolyzed in the electrolytic tank is supplied to the storage tank by a pump, while the aqueous solution in the storage tank is sucked and sent to the electrolytic tank, which is electrolyzed again. Since the configuration for driving the circulation flow path is adopted, it is possible to easily obtain a high-concentration aqueous solution (hydrogen water), and there is an effect that the hydrogen concentration in the aqueous solution can be easily controlled.

It is explanatory drawing which concerns on embodiment and looked at the internal structure of the hydrogen water generation apparatus from the front. It is explanatory drawing which | FIG. 5 is an external view of the housing of the hydrogen water generator as viewed from the front according to the embodiment. It is a figure which shows a part circuit diagram of the power circuit part of a hydrogen water generation apparatus, and the connection form with an electrode plate. It is a figure which shows the waveform of the voltage in each part of a power supply circuit part. It is the first figure which shows the connection between a power-source circuit part and an electrode plate (4 out of 8 (a set)), and the flow of a current (direct current, alternating current). It is a second figure which shows the connection between a power-source circuit part and an electrode plate (4 out of 8 (a set)), and the flow of a current (direct current, alternating current). FIG. 5 is a diagram showing a configuration of a circulation flow path in which a storage tank is added to a hydrogen water generator according to an embodiment. It is a figure (graph) which shows the result of the test 1 performed using the hydrogen water generation apparatus. It is a figure (graph) which shows the result of the test 2 performed using the hydrogen water generation apparatus. It is a figure (graph) which shows the result of the test 3 performed using the hydrogen water generation apparatus. It is a figure (graph) which shows the particle (bubble) diameter and the particle concentration in the aqueous solution generated by a hydrogen water generator.

Hereinafter, embodiments of the hydrogen water generator according to the present invention will be described.
FIGS. 1 and 2 show the hydrogen water generation device 2 according to the embodiment.
The hydrogen water generation device 2 includes an electrolytic cell 4, an electrode plate 6 arranged in the electrolytic cell 4 for electrolyzing water, a control panel 8, a filter 12, a pump 14, a storage tank 16, and the like.
Further, as shown in FIG. 3, the control panel 8 is provided with an operation panel 9, and a control unit 10 for controlling and operating the device, a power supply circuit unit 11 for supplying electricity to the electrode plate 6, and the like are provided. It is built-in.

In the hydrogen water generation device 2, other appliances such as an electrolytic cell 4, an electrode plate 6, a filter 12, and a pump 14 other than the storage tank 16 are housed in a housing 18, and a control panel 8 is a housing. It is attached to the front part of 18. Water such as tap water, well water, and natural water is used for the above electrolysis.
Here, when simply referring to water, it refers to either water before electrolysis or water after electrolysis, and hydrogen water or electrolysis of an aqueous solution containing or dissolved hydrogen or the like after electrolysis. It's called water.

The housing 18 is box-shaped, and a control panel 8 is attached to the front portion of the housing 18, and a water suction port 20 and a water discharge port 22 are located in the upper right portion of the front portion of the housing 18. It is provided.
Further, the housing 18 is provided with a drain cock 26 for draining unnecessary water in the electrolytic cell 4 and a drain cock 28 for draining unnecessary water in the pump 14. Normally, both cocks are opened when the device is not operated and closed when the device is operated.

The electrolytic cell 4 is a rectangular parallelepiped container made of stainless steel, synthetic resin, or the like. The electrolytic cell 4 has a rectangular (or rectangular) flat surface, and an injection port 30 is provided on one side (front side) of the facing wall surface portions of the electrolytic cell 4, and the other side (rear side). Is provided with a discharge port 32. The injection port 30 of the electrolytic cell 4 is connected to the suction port 20 of the housing 18 via a flow path such as a pipe and a pump 14.

The injection port 30 is provided in the vicinity of the bottom surface portion 34 of the electrolytic cell 4, and the discharge port 32 is provided in the vicinity of the upper portion 36 of the electrolytic cell 4. Therefore, the discharge port 32 is obliquely upward from the injection port 30. To position. Further, a lid member 38 is attached to the upper side of the electrolytic cell 4, and eight electrode plates 6 are attached to the lower side of the lid member 38. The upper part of the electrolytic cell 4 is sealed and closed by the lid member 38.

The electrode plate 6 is made of a mesh body in which a metal material is formed in a mesh shape (vertical / horizontal shape or diagonal crossing shape), and is a plate material having a rectangular shape or a rectangular shape as a whole (for example, 260 mm in length and 54.5 mm in width).
As the metal material of the electrode plate 6, stainless steel, titanium, aluminum, copper or the like can be used. In particular, stainless steel, titanium and the like are excellent in corrosion resistance and durability.
Here, stainless steel is used for the electrode plate 6, and a mesh-like lath material having diamond-shaped (punching metal) mesh is used. Further, the electrode plate 6 is made of a mesh body plated with platinum or gold.

The reason why the electrode plate 6 is made into a net is to improve the flow of water and to increase the surface area to enhance the reaction effect of electrolysis. The electrode plate 6 is made of stainless steel (for example, SUS316 or the like) because it has excellent corrosion resistance and pitting corrosion resistance.
Further, by plating the net body of the electrode plate 6 with platinum or gold, the conductivity is high, so that the reaction of electrolysis is good, and it is difficult to combine with other substances.

Eight of the electrode plates 6 face each other at predetermined intervals, and the surfaces are arranged in parallel. Here, the distance (electrode pitch) between the adjacent electrode plates 6 is set to a constant 7 mm. Although this interval depends on the applied voltage, the efficiency of electrolysis is good in the range of 3 to 10 mm, preferably 5 to 8 mm.
The upper portion of each electrode plate 6 is attached upward from the lower surface portion of the lid member 38, and the terminal 7 of each electrode plate 6 is provided on the upper surface portion of the lid member 38.

The number of the electrode plates 6 is preferably 3 or more in order to effectively perform electrolysis between the AC and DC voltage application modes and the adjacent electrode plates 6. Further, in order to efficiently perform a larger amount of electrolysis, the number of the electrode plates 6 is preferably 4 or more, or 8 or more. From the viewpoint of the amount of electricity supplied by the power supply circuit unit 11 or the management of the electrode plates 6, the number of the electrode plates 6 is practically about 16 at most.

In this way, the number of electrode plates 6 can be freely increased. Therefore, when designing to obtain a desired large amount of hydrogen water and hydrogen concentration, the number or area of the electrode plates 6 and the like can be increased. It can be easily dealt with by changing it.
Further, since all (here, eight) electrode plates 6 are housed in one electrolytic cell 4, the device such as the electrolytic cell 4 can be miniaturized and is functionally excellent.

A lid member 38 having eight electrode plates 6 attached to the lower side is arranged on the upper part of the electrolytic cell 4. In this state, the upper surface of the electrolytic cell 4 is covered with the lid member 38, and when the lid member 38 is fixed to the edge of the electrolytic cell 4 with a screw or the like, the electrolytic cell 4 is sealed by the lid member 38.
Further, when each of the electrode plates 6 is housed inside the electrolytic cell 4, the eight electrode plates 6 are arranged so as to face each other, and an injection port 30 is provided in the vicinity of one side of the arrangement of the electrode plates 6. In addition, the discharge port 32 is provided on the other side. The injection port 30 is formed near the upper portion of the bottom surface portion 34 of the electrolytic cell 4, while a slight gap is provided between the lower portion of each electrode plate 6 and the bottom surface portion 34 of the electrolytic cell 4. The water injected from the injection port 30 can move through the gap.

Therefore, the injected water moves around the electrode plate 6, and electrolysis can be performed along with this movement. In addition, with the movement of water in the electrolytic cell 4 (from the lower injection port 30 to the upper discharge port 32), the ascending movement of bubble-like particles (nano bubbles) generated by electrolysis (due to the relationship of specific gravity) also occurs. Since it is generated, it can be smoothly moved to the upper discharge port 32 without stagnation, and water retention can be prevented. In addition, the water can be electrolyzed evenly and uniformly with the movement of the water, so that a relatively large amount of water can be moved. Coupled with such a structure of the electrolytic cell 4 (movement form of water, etc.), hydrogen water can be produced as a large amount of electrolyzed water by increasing the number of electrode plates 6 and the like.

A total of eight electrode plates 6 are arranged together near the center of the electrolytic cell 4. Therefore, the opening of the electrolytic cell 4 (usually closed by the lid member 38) can be arranged in the center, and the electrode plate 6 can be easily maintained and replaced, and maintenance is easy.
Further, due to the arrangement of the electrode plate 6, between the front wall portion of the electrolytic cell 4 provided with the injection port 30 and the electrode plate 6 (frontmost portion), and the rear wall portion provided with the discharge port 32. A gap is formed between the electrode plate 6 and the electrode plate 6 (rearmost portion).
Therefore, a gap (space) through which water can flow is formed between the electrode plate 6 arranged in the center of the electrolytic cell 4 and the wall surface around the electrolytic cell 4, and water can freely flow. This makes it possible to move water well and prevent stagnation.

An electronic circuit board or the like configured around a microcomputer (CPU) is built in the control panel 8, and a control unit 10 and a power supply circuit unit 11 are incorporated in the board. Further, an operation button, an LED display, an indicator lamp, and the like are attached to the operation panel 9 of the control panel 8.

The control unit 10 mainly manages the setting of the operation time of the device, the operation status, and the like. Further, the control unit 10 and the power supply circuit unit 11 are provided with a high frequency transmission unit and a modulation unit, and modulation and the like are realized by software. In this case, for example, frequency modulation (FM) with a fluctuation range of 2 to 8 kHz, preferably 3 to 5 kHz is performed on the basic frequency of a high frequency transmission frequency of about 25 kHz. Then, the high frequency signal generated by the control unit 10 is output to the power supply circuit unit 11 to generate electric power for electrolysis.

As the basic (center) frequency of the high frequency, a high frequency of 25 kHz is used here, but as this frequency, a range of 15 kHz to 35 kHz, preferably 20 kHz to 30 kHz is suitable. In such a high frequency range, a large amount of bubble-like (nano bubble) aqueous solution (hydrogen water) containing hydrogen can be obtained. In addition, this aqueous solution also contains bubble-like (nano bubble) oxygenated water containing oxygen at the same time.

As shown in the electrical connection form of the power supply circuit unit 11 of FIG. 4, the power supply circuit unit 11 can amplify this signal based on the high frequency signals (SG1 and SG2) from the control unit 10 to electrolyze water. Generate electricity.
Then, wiring from the power supply circuit unit 11 is connected to each terminal 7 of the eight electrode plates 6 (first to eighth) in the electrolytic cell 4, and each electrode plate (first) is connected from the power supply circuit unit 11. AC and DC electricity is applied to the 8th).

The power supply circuit unit 11 includes a first output circuit 44 and a second output circuit 46 composed of a transistor circuit or the like, and the configurations of both output circuits are the same (details of the second output circuit are omitted).
The reason why the first and second output circuits are provided is to secure sufficient electric power and to output and supply the electric power required for electrolysis to all the electrode plates 6 (1st to 8th). .. Therefore, the first output circuit 44 supplies electricity to the first to fourth electrode plates 6, and the second output circuit supplies electricity to the fifth to eighth electrode plates 6.

The power supply circuit unit 11 outputs alternating current (alternate directional flow of pulsed waveform) and direct current (one-way flow) required for electrolysis.
Then, the pulse-shaped electric signals AC1 and AC2 are output from the first output circuit 44, and the pulse-shaped electric signals AC3 and AC4 are output from the second output circuit 46. Further, as a direct current power source, a voltage of GND (ground) or a positive potential (V +) is applied to the electric signal OUT. This positive potential (V +) is the same potential as AC1 to AC4 (V +).

As shown in FIG. 5, the high frequency signals (SG1 and SG2) are signals having a pulsed waveform. The signal AC1 (potential of GND to V +) is a pulse-shaped signal, and the signal AC2 (potential of V + to GND) is also a pulse-shaped signal. Further, the signals AC1-AC2 (potentials of V + to V-) are high-frequency alternating currents having a pulsed waveform.

Here, based on FIG. 4, the connection form of electricity applied from the power supply circuit unit 11 to the electrode plate 6 will be described.
AC1 is connected (applied) to the first electrode plate 6, AC2 is connected (applied) to the third electrode plate 6, AC3 is connected to the fifth electrode plate 6, and AC4 is connected to the seventh electrode plate 6. Are connected respectively. On the other hand, an OUT signal is connected (applied) to the second, fourth, sixth and eighth electrode plates 6.
This OUT signal has a potential at the GND (ground) level and a potential at the same potential as V + (positive potential), and the OUT signal is switched between GND and V + at regular intervals. This cycle is preferably several minutes, for example, about 1 to 3 minutes, and is set to 2 minutes here. By switching this cycle, the polarity of the electrode plate 6 changes and the flow of electricity is switched, and inorganic substances (calcium, magnesium) and the like adhering to the electrode plate 6 can be removed.

Then, signals AC1 to AC4 amplified (by the power supply circuit unit 11) to the same potential as V + based on SG1 and SG2 are applied to the first, third, fifth, and seventh electrode plates 6.
The signal from the power supply circuit unit 11 has a reference frequency of about 25 kHz here, and frequency modulation in which the frequency changes randomly is added to the reference frequency. This frequency modulation is performed by software (program) in the control unit 10.

Since the first output circuit 44 and the second output circuit 46 are equivalent circuits and have the same connection form to the electrode plate 6, the first output circuit 44 and the first to fourth electrodes are used here. The connection form with the plate 6 will be described, and the description of the second output circuit will be omitted.
Here, the basic characteristics (waveforms) of the signals of AC1 and AC2 are as shown in the time chart of FIG. ON (V +) and OFF (GND) of these AC1 and AC2 are reversed. Further, between AC1 and AC2, the waveform is controlled to be an alternating current (high frequency) waveform.

6 (a) and 6 (b) show the flow of electricity (alternating current, direct current) applied to the first to fourth electrode plates 6 when the OUT signal is GND.
Here, the OUT signal outputs a signal having the same potential as GND, and when AC1 is ON (V +) and AC2 is OFF (GND), a current flows as shown in FIG. Further, when the OUT signal has the same potential as GND, AC1 is OFF (GND), and AC2 is ON (V +), a current flows as shown in FIG.

That is, an alternating current (high frequency) in which the direction of the current constantly changes is formed between the first electrode plate 6 and the third electrode plate 6. Further, in the first electrode plate 6 and the third electrode plate 6, a current as a direct current (pulse-like waveform) in which the direction of the current is constant flows with respect to the second and fourth electrode plates 6.
In this way, the first electrode plate 6 and the third electrode plate 6 function as anodes, and the second electrode plate 6 and the fourth electrode plate 6 function as cathodes, respectively.

7 (c) and 7 (d) show the flow of electricity (alternating current, direct current) applied to the first to fourth electrode plates 6 when the OUT signal is V +.
Here, when the OUT signal outputs a signal having the same potential as V + and AC1 is ON (V +) and AC2 is OFF (GND), a current flows as shown in FIG. Further, when the OUT signal has the same potential as V +, AC1 is OFF (GND), and AC2 is ON (V +), a current flows as shown in FIG.

That is, between the first electrode plate 6 and the third electrode plate 6, the alternating current is always in the direction of the current, as in the case where the OUT signal is GND. Further, from the second electrode plate 6 and the fourth electrode plate 6, a direct current having a constant current direction flows through the first electrode plate 6 and the third electrode plate 6.
In this way, the first electrode plate 6 and the third electrode plate 6 function as cathodes, and the second electrode plate 6 and the fourth electrode plate 6 function as anodes, respectively.

Therefore, when the flow of electricity is switched from the state of FIGS. 6 (a) and 6 (b) to the state of FIGS. 7 (c) and 7 (d), the current flows in the opposite direction due to the switching of the polarity of the DC power supply. By switching the polarity (direct current), the anode and the cathode are alternately switched for all (4) electrode plates 6. In this way, the polarities of the direct current applied to the electrode plate 6 are alternately switched in order to remove the inorganic compounds and the like adhering to the electrode plate 6.
Further, as described above, alternating current is applied to the first electrode plate 6, direct current is applied to the second electrode plate 6, alternating current is applied to the third electrode plate 6, and direct current is applied to the fourth electrode plate 6. The reason why the connection wiring is such that alternating current and direct current are exchanged is that the direct current flows in a well-balanced and efficient manner so that each electrode plate 6 can perform good electrolysis.

Next, the fourth electrode plate 6 and the fifth electrode plate 6 straddling both output circuits between the fourth electrode plate 6 according to the first output circuit 44 and the fifth electrode plate 6 according to the second output circuit 46. The flow of electricity between the electrode plates 6 of the above will be described.
Here, an OUT signal is applied to the fourth electrode plate 6, and AC3 is applied to the fifth electrode plate 6 from the second output circuit 46. Further, the OUT signal of the first output circuit 44 and the second output circuit 46 and the OUT signal are integrated (connected).
Further, from the viewpoint of the fifth electrode plate 6, the fourth electrode plate 6 is equivalent (connected) to the sixth electrode plate 6, so that when the OUT signal is GND, the fifth electrode plate 6 to the fourth electrode plate 6 is used. Direct current flows to the electrode plate 6, and when the OUT signal is V +, direct current flows from the fourth electrode plate 6 to the fifth electrode plate 6.
Therefore, with respect to the first to eighth electrode plates 6, a current flows between all the adjacent electrode plates 6, and electrolysis is performed.

Due to the electrolysis between the electrode plates 6, hydrogen (gas) is generated at the cathode and oxygen (gas) is generated at the anode. It is considered that this hydrogen (gas) is partially dissolved in water in a molecular state (H ₂ ) and in an atomic state (H). Part of the oxygen (gas) dissolves in water and is released into the atmosphere when saturated. Further, it is considered that the redox potential is lowered to become the reduction potential because hydrogen is increased as compared with oxygen.

Furthermore, since frequency modulation was applied to the reference frequency as alternating current, frequency fluctuations were brought about, and when this fluctuation reached a sudden fluctuation point, a shock wave was generated, and hydrogen generated by electrolysis at this time was generated. It is thought that the bubbles of (gas) and oxygen (gas) will be miniaturized, and the diameter of the bubbles will become finer, even to nanobubbles in nano units. When the hydrogen bubbles become as small as nano bubbles, the residence time in water becomes long.

As described above, in the electrolytic tank 4, so-called hydrogen water is used as a dissolved aqueous solution containing hydrogen (gas), oxygen (gas) and the like by electrolysis of water using the electrode plates 6 (1st to 8th). (Nano bubble hydrogen water) is generated.
Further, by inverting the polarity of the direct current by switching the electric signal OUT, the inorganic substance and the like adhering to the electrode plate 6 can be removed, the function of the electrode plate is maintained, and the durability is excellent.

As described above, here, an AC voltage is applied between the first electrode plate 6 and the third electrode plate 6, and the electrode plate 6 (first or third) to which the AC voltage is applied and this. An electric current is passed through the electrode plates 6 (second or fourth) other than the above to perform electrolysis.
In addition, an AC voltage may be applied between the second electrode plate 6 and the fourth electrode plate 6, and in this case, the electrode plate 6 (second or fourth) to which the AC voltage is applied may be applied. ) And the other electrode plates 6 (first or third), an electric current is passed through them to perform electrolysis.

As described above, particularly here, four consecutive electrode plates 6 (first to fourth electrode plates 6) are set as a set, and among the above-mentioned electrode plates 6 of each set, the other electrode plate 6 (for example, for example). An AC voltage is applied between the specific electrode plates 6 (for example, between the first and third electrode plates 6) interposed therebetween the second electrode plate 6), and the electrode plates 6 other than the specific electrode plate 6 (for example, between the first and third electrode plates 6) are applied. A DC voltage is applied to the second and fourth electrode plates 6).
Then, between the specific electrode plate 6 and the other electrode plates 6 (for example, between the first and second electrode plates 6, between the first and fourth electrode plates 6, and between the third and second electrode plates 6, A direct current is passed between the third and fourth electrode plates) to cause electrolysis. In this case, the form of applying the AC voltage, DC voltage, or the like to each set of electrode plates may be the same for any set.

In the combination of four electrode plates 6 as described above, a current (direct current) can be passed between all the adjacent electrode plates 6 as described above, and electrolysis can be efficiently performed. Further, in the combination of the above four plates, the application of the AC voltage and the application of the DC voltage are alternated, and current can be passed between the pairs of the electrode plates 6 of the other pairs to perform electrolysis. It is efficient. The number of the above sets may be one, but if two or more sets are used, more efficiency can be achieved.
In short, a connection form is adopted in which AC voltage and DC voltage are applied to each electrode plate 6 in a well-balanced manner, and electrolysis is efficiently performed in all the electrode plates 6. Then, by wiring so that electrolysis can be performed at least between the adjacent electrode plates 6, the efficiency of electrolysis can be improved.

Although eight electrode plates 6 are used here, any number of electrode plates 6 can be used as long as they are three or more. For example, when there are three electrode plates 6, electrolysis is performed by the wiring connection of the first to third electrode plates, and similarly, electrolysis is performed by the wiring connection according to the wiring according to the number of electrode plates 6. You just have to do.
Further, when the efficiency of electrolysis and the power supply capacity of the power supply circuit unit 11 are taken into consideration, the number of electrode plates 6 is 4, such as 4, 8, 12, or 16 as the number according to this embodiment. It may be a multiple of.

In the filter 12, a cylindrical cylinder 50 is concentrically arranged inside a cylindrical container 48 having a bottom surface, and an annular space portion 52 is formed between the container 48 and the cylinder 50. is doing. The tubular body 50 is provided with a plurality of holes 51 around the lower portion.
An inflow hole 54 for electrolyzed water is provided near the upper part of the container 48, and a lid is arranged on the upper part of the container 48 to close the space 52.

A filter material such as a carbon filter is arranged in the space 52, and an outflow hole 55 is provided in the upper part of the cylinder 50.
Therefore, the aqueous solution that has flowed in from the inflow hole 54 of the filter 12 moves downward in the space 52, but at this time, filtration is performed by the carbon fluter, and chlorine-based substances such as hypochlorous acid and chlorine are mainly contained. Will be removed. Further, the aqueous solution moves from the space portion 52 through the hole portion 51 to the inside of the tubular body 50, further rises in the tubular body 50, and is discharged from the outflow hole 55.

FIG. 8 shows a circulation flow path 62 in which a storage tank 16 is added to the flow path of the hydrogen water generator 2 and the aqueous solution electrolyzed in the electrolytic cell 4 is sent to the electrolytic cell 4 again via the storage tank 16. It is a thing. Then, by driving the pump 14, the aqueous solution in the storage tank 16 is sucked and sent to the electrolytic cell 4, the aqueous solution electrolyzed here is supplied to the storage tank 16, and this is sent to the electrolytic cell 4 again for electrolysis. .. By circulating the electrolyzed aqueous solution through the circulation flow path 62 in this way, the hydrogen concentration in the aqueous solution is increased.

Further, a flow path branched in two directions is connected to the discharge port 32 of the electrolytic cell 4, and a first switching valve 56 and a second switching valve 58 are attached to each flow path.
The tip of the first switching valve 56 is connected to the inflow hole 54 of the filter 12, and the tip of the outflow hole 55 is connected to the discharge port 22 of the housing 18 via a flow path. Further, the tip of the second switching valve 58 is directly connected to the discharge port 22 of the housing 18 via the flow path.
Therefore, by operating the first and second switching valves, it is possible to select a flow path through which the filter 12 passes and a bypass flow path bypassing the flow path of the aqueous solution from the electrolytic cell 4. ..

Normally, the electrolyzed water electrolyzed in the electrolytic cell 4 contains hypochlorous acid, chlorine and the like, and these chlorine-based substances are removed by the filter 12. However, since chlorine-based substances have a bactericidal action, chlorine-based substances are used for sterilization when sterilization is required in plant soil or the like. Therefore, by operating the first and second switching valves, a detour flow path that does not allow the filter 12 to pass through is selected when sterilization is required.
As the first and second switching valves, it is also possible to use a switching valve composed of a three-way valve, whereby the flow path passing through the filter 12 and the flow path bypassing the filter 12 can be switched. Do it alternately.

The storage tank 16 is a container for storing an aqueous solution containing hydrogen or the like, and has a capacity of 500 liters here. A hose or the like is attached to the discharge port 22 of the housing 18 to form a flow path, and the electrolyzed aqueous solution is supplied to the storage tank 16.
The storage tank 16 is made of synthetic resin here, but a metal such as stainless steel is also used, and the entire storage tank 16 is a rectangular parallelepiped or spherical container. A lid member is attached to the upper portion of the storage tank 16 so that the inside can be sealed.
The storage tank 16 is a water source for water to be sent to the electrolytic cell 4, and is used to temporarily store an aqueous solution (hydrogen water or the like) from the electrolytic cell 4 and send it to the electrolytic cell 4 again. It also serves as a water source for supplying hydrogen water and the like to plants and the like.

The pump 14 is arranged between the suction port 20 of the housing 18 and the injection port 30 of the electrolytic cell 4, drives the circulation flow path 62, and sucks water from the suction port 20 into the injection port of the electrolytic cell 4. Distribute toward 30.
The pump 14 sucks water from the outside such as a storage tank 16 and supplies it to the electrolytic cell 4, and when the electrolytic cell 4 is sufficiently filled with water, the aqueous solution from the electrolytic cell 4 is used. It is delivered to the discharge port 22 of the filter 12 or the housing 18, and is distributed from the discharge port 22 to the storage tank 16.

In this way, the aqueous solution (hydrogen water or the like) in the storage tank 16 is sent to the electrolytic cell 4 and electrolyzed again to increase the concentration of hydrogen water. The aqueous solution in the storage tank 16 can be supplied to agricultural products and the like as it is.
The flow rate of water by the pump 14 is, for example, 9 L (liter) / min to 12 L / min. In this case, 9 L / min to 12 L / min of water is injected from the injection port 30 of the electrolytic cell 4, this amount of water is electrolyzed, and the same amount of water is discharged from the discharge port 32 of the electrolytic cell 4. ..

Next, the operation operation of the hydrogen water generation device 2 will be described. The hydrogen water generation device 2 operates operation buttons and the like in advance from the operation panel 9 provided on the control panel 8, and registers operation management information such as operation contents and operation time. These operation contents are controlled by the control unit 10 to operate the pump 14 and the like.
In this way, management information can be registered and set in the control unit 10, and as the circulation time of the water circulation flow path 62, the operating time of the pump 14 that drives the flow of the circulation flow path 62 (also the electrolysis time). By registering (synchronization) or registering the number of recirculations (estimated from the amount of water in the storage tank and the amount of circulating water) and operating the apparatus, hydrogen water having a desired concentration can be easily obtained.

When the filter 12 is used as a preparation for operation, the first switching valve 56 on the filter 12 side is opened and the second switching valve 58 is closed. In this case, the aqueous solution from the electrolytic cell 4 passes through the filter 12 and is filtered. On the contrary, when detouring the filter 12, the first switching valve 56 is closed and the second switching valve 58 is opened.
Further, when the device is operated, the drain cock 26 and the drain cock 28 provided in the housing 18 are closed.

Normally, in the operation of the device, a circulation flow path via the storage tank 16 is configured. In this case, using a flow pipe such as a hose that forms a flow path, the storage tank 16 and the suction port 20 of the housing 18 are communicated with each other by the flow pipe to form a flow path. Further, the discharge port 22 of the housing 18 and the storage tank 16 are communicated with each other by a flow pipe to form a flow path, and a water circulation flow path 62 via the storage tank 16 is formed.
Further, the storage tank 16 is pre-filled with a predetermined amount of water for electrolysis.

When water stored in another storage tank or the like other than the storage tank 16 is used, the storage tank and the suction port 20 of the housing 18 are communicated with each other by using a flow pipe, and the electrolytic tank 4 is used. It may be electrolyzed.
In this case, the aqueous solution (hydrogen water, etc.) from the electrolytic cell 4 may be once stored in the storage tank 16 from the discharge port 22 via the flow pipe, and the aqueous solution may be directly supplied to the agricultural products, etc. from the discharge port 22. You may.

When the circulation flow path 62 is formed and the operation is started based on the operation management information registered in the control unit 10, the pump 14 is started and the electrolysis in the electrolytic cell 4 is started. Then, water is sucked from the storage tank 16 and is supplied from the suction port 20 of the housing 18 to the injection port 30 of the electrolytic cell 4 via the pump 14.
The water injected from the injection port 30 of the electrolytic cell 4 moved upward from the lower part of each of the eight electrode plates 6 from the lower part of the electrolytic cell 4, and eventually contained hydrogen and the like by electrolysis by each electrode plate 6. An aqueous solution (electrolyzed water) is produced.

This aqueous solution contains hydrogen water that is generated by electrolysis and contains hydrogen in water. This hydrogen water contains hydrogen (gas) dissolved in water and nano-bubbled bubbles (hydrogen) in the water. It contains so-called nanobubble hydrogen water.
Further, the aqueous solution also contains oxygenated water produced by electrolysis and containing oxygen (gas) in the aqueous solution, and also contains chlorine-based substances and the like.

The water in the electrolytic cell 4 is injected from the injection port 30 near the lower front side of the electrolytic cell 4, moves on the lower side of the electrolytic cell 4, and eventually rises toward the discharge port 32 near the upper rear side of the electrolytic cell 4. Then, it moves to the rear part of the electrolytic cell 4 and is discharged from the discharge port 32. In this way, the water injected from the injection port 30 of the electrolytic cell 4 moves and circulates in the electrolytic cell 4 toward the discharge port 32, and a part of the water passes through the mesh-like electrode plate 6 and moves and circulates.
The electrolysis of the electrolytic cell 4 is performed by the eight electrode plates 6 when the water is moved. Water is also electrolyzed when it passes through the electrode plate 6 of the reticular formation.

Further, in the electrolytic cell 4, eight electrode plates 6 are arranged closer to the center, and a sufficient gap (space) for water flow is provided between the electrode plates 6 and the front, rear, left and right wall surfaces of the electrolytic cell 4. In addition, a sufficient gap (space portion) is provided between the bottom surface portion 34 of the electrolytic cell 4 and the electrode plate 6 for the flow of water.
Since these gaps form a flow path for water flow in the electrolytic cell 4, water retention in the electrolytic cell 4 is prevented, and at the same time, the water in the electrolytic cell 4 is evenly and uniformly electrolyzed. ..
Then, the water injected from the injection port 30 provided near the lower part of the electrolytic cell 4 flows in the direction of the discharge port 32 on the opposite side, and as the water moves, electrolysis is performed by each electrode plate 6, and the electrolytic cell is electrolyzed. It is discharged from the discharge port 32 provided near the upper part of No. 4.

The inside of the electrolytic cell 4 is sealed by a lid member. Therefore, the amount of water supplied from the injection port 30 (suction port 20) of the electrolytic cell 4 due to the operation of the pump 14 is the same as the amount of water discharged from the discharge port 32 (discharge port 22) of the electrolytic cell 4. , The water inside the electrolytic cell 4 is pushed out and discharged by the water supplied.

While the electrolysis is being performed in the electrolytic cell 4, the pump 14 is operating, new water is supplied from the injection port 30 into the electrolytic cell 4, and the same amount of water (aqueous solution) is supplied. It is discharged from the discharge port 32 of the electrolytic cell 4. This aqueous solution is sent to the filter 12 via the first switching valve 56 by operating the switching valve.
In the filter 12, chlorine-based substances and the like are removed by filtration, and the aqueous solution flowing out from the outflow hole 55 of the filter 12 is sent to the discharge port 22 of the housing 18, and is sent by a hose or the like connected to the discharge port 22. It is sent to the storage tank 16 and stored there.

The storage tank 16 is returned to the storage tank 16 again via the pump 14, the electrolytic cell 4 (electrode plate 6), the first and second switching valves, and the filter 12 (with detours) via the flow path. The flow path becomes the circulation flow path 62 of the aqueous solution (electrolyzed water).
While the apparatus is in operation, the pump 14 drives the aqueous solution to continuously flow through the circulation flow path 62, and electrolysis in the electrolytic cell 4 and filtration in the filter 12 are repeated. In this way, by repeatedly circulating the circulation flow path 62 and repeatedly performing electrolysis, the concentration of hydrogen contained in the water is increased, and high-concentration hydrogen water can be obtained.

When the filter 12 is used, the discharge flow rate (flow rate discharged from the discharge port 22) during operation of the hydrogen water generator 2 is, for example, 5 to 20 L (liter) / min, preferably 9 to 12 L (liter) / min. Minutes. When the capacity of the storage tank is 500 L (liter), the operation time of the device is, for example, about 3 to 6 hours.

Subsequently, the test results such as the hydrogen amount (concentration) of the aqueous solution (hydrogen water) generated by using the hydrogen water generation device 2 will be described.
FIG. 9 is a graph showing the transition of the amount of hydrogen due to the conductivity of the water used for electrolysis as Test 1.
here,
The graph of Test 1-1 shows an electrode pitch of 7 mm, a power supply voltage of 24 V, a discharge flow rate of 10 L / min, and
The graph of test 1-2 shows an electrode pitch of 7 mm, a power supply voltage of 18 V, a discharge flow rate of 10 L / min, and
The graph of Test 1-3 shows the test under the conditions of an electrode pitch of 7 mm, a power supply voltage of 24 V, and a discharge flow rate of 18 L / min.

The "electrode pitch" is the distance between the opposing electrode plates 6. The "power supply voltage" is a voltage (V +) with respect to GND related to AC1 to AC4. The discharge flow rate is a flow rate (L liter) discharged from the discharge port 22. In addition, "conductivity" was changed by adding a salt (sodium chloride) to water. Test 1 shows the amount of hydrogen after another 6 hours have passed from the discharge port.

From Test 1, the rate of increase in the amount of hydrogen is high, especially up to a conductivity of 25 mS / m, and becomes gradual when it exceeds 50 mS / m. Further, in any of the tests, when the conductivity is low (25 mS / m or less), it is shown that the ratio of increase in the amount of hydrogen to the increase in conductivity is high.
Further, the increase in the amount of hydrogen due to the high power supply voltage is reversed depending on the high conductivity, and a sufficient amount of hydrogen can be obtained even if the power supply voltage is low (18 V).
Therefore, regarding the water for electrolysis, it is preferable to control the number of circulations in the circulation flow path 62 according to the water quality such as tap water and natural water. It is also effective to add salt, liquid fertilizer, etc. in water in advance to increase the conductivity.

FIG. 10 shows the change over time in the amount of hydrogen in the aqueous solution (hydrogen water) discharged from the apparatus as Test 2.
here,
The graph of test 2-1 shows an electrode pitch of 5 mm, an operating time of 24 hours, a conductivity of 30 mS / m, a power supply voltage of 24 V, and a discharge flow rate of 10 L / min.
The graph of test 2-2 shows an electrode pitch of 7 mm, an operating time of 8 hours, a conductivity of 10 mS / m, a power supply voltage of 24 V, and a discharge flow rate of 10 L / min.
The graph of test 2-3 shows an electrode pitch of 7 mm, an operating time of 8 hours, a conductivity of 200 mS / m, a power supply voltage of 18 V, and a discharge flow rate of 10 L / min.
The graph of Test 2-4 is a test conducted under the conditions of an electrode pitch of 7 mm, an operating time of 8 hours, a conductivity of 200 mS / m, a power supply voltage of 18 V, and a discharge flow rate of 10 L / min.

Regarding the storage of the discharged aqueous solution, tests 2-1 to 3 were stored in a bucket (open), and in test 2-4, they were stored in a tank (closed container with a lid). The operating time is the operating time of the device, and if this operating time is long, the number of times of repeated electrolysis due to recirculation increases.
Other conditions are the same as described above.

From Test 2 to Test 2-1 and Test 2-3, even when the conductivity of the water to be electrolyzed is low (Test 2-1), the operating time of the device is long (the number of recirculations is increased). It has been shown that a relatively high amount of hydrogen can be obtained by doing so.
Further, in Test 2-4 (tank storage), the amount of hydrogen decreased slightly with time, especially until the elapsed time was more than 10 hours (h), and the amount of hydrogen was smaller than that of other Tests 2-1 to 3. The change over time is small. On the other hand, in Tests 2-1 to 3 (bucket storage), the amount of hydrogen decreases rapidly with time until the elapsed time is more than 20 hours (h), and after that, the decrease with time is gradual.
From the above, it was confirmed that high-concentration hydrogen water can be obtained by lengthening the operating time of the device, and that the hydrogen water can be stored in a container with a lid to maintain a high hydrogen content and last longer. ..

FIG. 11 shows a change (time) in the amount of hydrogen depending on the flow rate discharged from the device as Test 3.
here,
The graph of test 3-1 shows an electrode pitch of 7 mm, a conductivity of 30 mS / m, a power supply voltage of 24 V, and a discharge flow rate of 18 L / min.
The graph of test 3-2 shows an electrode pitch of 7 mm, a conductivity of 30 mS / m, a power supply voltage of 24 V, and a discharge flow rate of 10 L / min.
The graph of test 3-3 shows an electrode pitch of 7 mm, a conductivity of 100 mS / m, a power supply voltage of 18 V, and a discharge flow rate of 10 L / min.
The graph of test 3-4 shows an electrode pitch of 7 mm, a conductivity of 100 mS / m, a power supply voltage of 18 V, and a discharge flow rate of 18 L / min.
The graph of Test 3-5 shows the test under the conditions of an electrode pitch of 7 mm, a conductivity of 30 mS / m, a power supply voltage of 24 V, a discharge flow rate of 10 L / min, and a filter.

From Test 3, when the conductivity is high (Tests 3-3, 4), the rate of increase in the amount of hydrogen with respect to the operating time is higher than when the conductivity is low (Tests 3-1, 2, 5).
Further, when the filter is used (test 3-5), the rate of increase in the amount of hydrogen is lower than when the filter is not used under the same conditions (test 3-2).
Further, even when the discharge flow rate is increased by 1.8 times as in the test 3-4 with respect to the test 3-3, the hydrogen amount is reduced by about 10%, and it can be obtained when the discharge amount is slightly increased or decreased. It was shown that there was no significant change in the amount of hydrogen.

As mentioned above, the following matters are considered from the above tests 1 to 3.
-In order to cover a wide range of conductivity, it is preferable to set the power supply voltage to 18V.
-If the conductivity is less than 30 mS / m, the amount of hydrogen can be expected to increase by adding additives such as salt and fertilizer to increase the conductivity.
-Due to the change over time in the amount of hydrogen, it will be less than 100 ppb in about 3 days when stored in a bucket. Therefore, by storing a large amount in a tank or the like in a sealed manner, the amount of hydrogen can be prevented from decreasing and can be stored for a long time.
-The discharge flow rate is superior to 10 L / min over 18 L / min.
・ When a filter is used, the amount of hydrogen decreases a little.

FIG. 12 is a graph showing the particle concentration (vertical axis: E7) of the aqueous solution (hydrogen water) generated by the hydrogen water generator 2 and the particle diameter (horizontal axis: nm) of the bubbles. Here, the large mountain graph (a) is a graph related to the aqueous solution (hydrogen water) generated by the hydrogen water generation device 2, and the small mountain graph (b) is a graph related to general tap water. The particles related to tap water are fine dust and are different from bubbles. Graph (b) is shown for reference.

From the graph (a) above, the formation of nano-sized particles can be seen with the particle size of the particles (bubbles) ranging from 50 nm to 250 nm. In particular, when the particle size is in the range of 70 nm to 130 nm, the particle concentration (number of particles) is high and many nano-sized particles are produced.
The particles (air bubbles) generated by the hydrogen water generator 2 had a concentration (Concentration) of ^2.19.109 particles (about 2.19 billion particles) / mL in 1 mL. Here, for reference, the number of particles in 1 mL of tap water was 7.05.107 (about ⁷⁰ million) / mL. When this is subtracted, about 2.1 billion particles (bubbles) are generated by the hydrogen water generator 2.
The substance in the particles (bubbles) has not been specifically measured, but it is presumed that hydrogen gas is contained from the amount of hydrogen in the tests 1 to 3 and the like. From this, it is considered that a large amount of nano-sized bubbles (nano bubble hydrogen water) are generated by the hydrogen water generation device 2.

Next, a mode of use of the hydrogen water generated by the hydrogen water generation device 2 for plants (cultivation of agricultural products, gardening, etc.) and livestock (breeding of livestock, etc.) will be described. The use for plants mainly includes foliar spraying, irrigation and hydroponics. In this case, hydrogen water is supplied from the storage tank 16 and sprayed on plants, irrigated, and the like.

In foliar spraying, for example, foliar spraying of plants such as agricultural products and flowers is performed using an automatic sprayer or a dynamic sprayer for spraying hydrogen water. This is mainly performed for the purpose of exterminating pests such as mites, thrips and slips, and inhibiting the hatching of eggs such as pests.
By supplying hydrogen water (particularly nanobubble hydrogen water) to plants, there is no resistance to pests and phytotoxicity, and the number of times pesticides are used can be reduced. In addition, pest eggs hatch by oxidation, but nanobubble hydrogen water has a high reduction reaction, so it has the function of preventing egg oxidation and inhibiting hatching.

Further, in irrigation and hydroponics, hydrogen water is circulated from the storage tank 16 via a supply pump or the like, and hydrogen water is supplied to the roots of plants or the like. In this case, for example, hydrogen water may go around the field (farm) over a day or so. The hydrogen concentration of hydrogen water preferably remains for about 3 days.
According to the test, the growth of plants such as leaves grows greatly by irrigation of hydrogen water and the like, which contributes to the promotion of plant growth.

Further, the hydrogen water generated by the hydrogen water generation device 2 is mixed with the drinking water and livestock feed of livestock (pigs, cows, chickens, etc.) and used. This has the effects of maintaining the health of livestock (reducing the occurrence of diseases), reducing the amount of feces (because of good digestion and absorption), and reducing the odor of feces.

Further, the hydrogen water produced by the hydrogen water generation device 2 contains a large amount of fine particle-like nanobubble hydrogen water, and it is possible to leave the hydrogen concentration for about 3 days. The hydrogen water storage tank 16 is preferably stored in a sealed manner, which enables long-term storage.

The hydrogen water generated in the electrolytic cell 4 can be directly supplied to the plant as it is.
In this case, for example, water is directly supplied to the suction port 20 of the housing 18 from a water supply or a water source, and the aqueous solution that is further passed through the electrolytic cell 4 and the filter 12 and discharged from the discharge port 22 of the housing 18 is used as it is. It is supplied to agricultural products, etc. via the channel.
At this time, the storage tank 16 is not particularly required, but for example, the storage tank 16 can also be used as a buffer (buffering means). In this case, the aqueous solution produced in the electrolytic cell 4 is once stored in the storage tank 16 and supplied to the plant. As a result, the amount of hydrogen water required for crops can always be supplied regardless of the amount of hydrogen water produced in the electrolytic cell 4.

As described above, according to the hydrogen water generator according to this embodiment, a large amount of an aqueous solution (hydrogen water) containing hydrogen can be efficiently obtained, and the device such as an electrolytic cell can be downsized. , Functional and economical. In addition, in the electrolytic tank, electrolysis can be performed efficiently with the movement of water, the movement of water can be performed evenly without stagnation, the electrolysis can be performed well, the retention of water can be prevented, and in addition, the circulation flow path. By repeatedly passing through the electrolytic tank, high-concentration hydrogen water can be easily obtained, and the hydrogen concentration in the aqueous solution can be easily controlled.

2 Hydrogen water generator 4 Electrolytic cell 6 Electrode plate 10 Control unit 11 Power supply circuit unit 12 Filter 14 Pump 16 Storage tank 30 Injection port 32 Outlet port 62 Circulation flow path

Claims (4)

With a net-like electrode plate,
Four consecutive electrode plates are arranged as a set, and eight plates are arranged facing each other at predetermined intervals, and a water inlet is provided on one side of the array of these electrode plates and water is placed on the other side. An electrolytic cell with each discharge port and
It has a power supply circuit unit in which a voltage is applied to each of the above electrode plates and a current is passed between adjacent electrode plates and between electrode plates interposed between other electrode plates to perform electrolysis.
In the power supply circuit section, an output circuit for supplying electricity to each set of the above four sets is individually provided for each set.
The power supply circuit unit applies an AC voltage between specific electrode plates interposed between the other electrode plates in each set of the electrode plates, and a DC voltage to the electrode plates other than the specific electrode plates. To perform electrolysis,
The electrolytic cell is housed in a housing, a lid member to which the eight electrode plates are attached is arranged on the lower side of the electrolytic cell, the lid member is fixed to the edge of the electrolytic cell, and the electrolytic cell is fixed. The electrode plates are collectively arranged near the center of the electrolytic cell, a gap through which water can flow is formed between the electrode plate and the wall surface around the electrolytic cell, and the electrolytic cell is provided with the lid member. Seal the inside of
A pump is arranged in the flow path between the water suction port in the housing and the injection port of the electrolytic cell, and the water is circulated toward the injection port by driving the pump.
The water inside the electrolytic cell is pushed out by the water supplied from the inlet, discharged from the discharge port, and the flow rate of the discharged water is set to 9 to 12 liters / minute.
The injection port is provided near the lower part of the electrolytic tank to inject water, while the discharge port is provided near the upper part of the electrolytic tank to move the injected water from the injection port toward the discharge port. At the same time, it is moved from the bottom to the top, and the moving water is electrolyzed by the electrode plate to generate an aqueous solution containing hydrogen in the water, which is discharged from the discharge port. Device. With a net-like electrode plate,
Four consecutive electrode plates are arranged as a set, and eight plates are arranged facing each other at predetermined intervals, and a water inlet is provided on one side of the array of these electrode plates and water is placed on the other side. An electrolytic cell with each discharge port and
It has a power supply circuit unit in which a voltage is applied to each of the above electrode plates and a current is passed between adjacent electrode plates and between electrode plates interposed between other electrode plates to perform electrolysis.
In the power supply circuit section, an output circuit for supplying electricity to each set of the above four sets is individually provided for each set.
The distance between the adjacent electrode plates is 5 to 8 mm.
The power supply circuit unit applies an AC voltage between specific electrode plates sandwiched between other electrode plates in each set of the electrode plates, and a DC voltage is applied to the electrode plates other than the specific electrode plates. In the form of applying
Regarding the output circuit provided for each of the above sets, a circuit for applying an electric signal as a DC power supply is connected and integrated, and among the adjacent electrodes between the sets, an electrode for applying an AC voltage is provided on one side. In the case of the arranged form, an electrode for applying a DC voltage is arranged on the other side, and electrolysis is performed.
The injection port is provided near the lower part of the electrolytic tank to inject water, while the discharge port is provided near the upper part of the electrolytic tank to move the injected water from the injection port toward the discharge port. At the same time, it is moved from the bottom to the top, and the moving water is electrolyzed by the electrode plate to generate an aqueous solution containing hydrogen in the water, which is discharged from the discharge port. Device. The electrolytic cell is housed in a housing, a lid member to which the eight electrode plates are attached is arranged on the lower side of the electrolytic cell, the lid member is fixed to the edge of the electrolytic cell, and the electrolytic cell is fixed. The electrode plates are collectively arranged near the center of the electrolytic cell, a gap through which water can flow is formed between the electrode plate and the wall surface around the electrolytic cell, and the electrolytic cell is provided with the lid member. Seal the inside of
A pump is arranged in the flow path between the water suction port in the housing and the injection port of the electrolytic cell, and the water is circulated toward the injection port by driving the pump.
The second aspect of claim 2 , wherein the water inside the electrolytic cell is pushed out by the water supplied and discharged from the discharge port so that the flow rate of the discharged water is 9 to 12 liters / minute. The hydrogen water generator described. The claim is characterized in that a switching valve that communicates with the discharge port is provided so that a flow path through which the aqueous solution discharged from the discharge port passes through the filter and a flow path that does not pass through the filter can be switched. The hydrogen water generator according to any one of 1 to 3 .

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