JP2010088973A - Hydrogen-containing electrolytic water generation device and hot water supply device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hydrogen-containing electrolytic water generation device which allows hydrogen gas having extremely small bubbles to be contained in hydrogen-containing electrolytic water. <P>SOLUTION: A cation exchange membrane 12 is held between a positive electrode 15 and a negative electrode 16, a channel 21 for passing city water is provided in a path of a cathode side between the negative electrode 16 and the cation exchange membrane 12, the negative electrode 16 is formed mesh-like and hydrogen gas generated in the negative electrode 16 is released in a state where a wetting angle of the bubbles of hydrogen gas is made small to obtain the small size of the bubbles. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a hydrogen-containing electrolyzed water generator and hot water supply equipment for obtaining hydrogen-containing electrolyzed water from raw water such as tap water.

  As an alkali ion water conditioner (hydrogen-containing electrolyzed water generator) that generates hydrogen-containing electrolyzed water (alkaline ion water) and acidic ion water from tap water, an ion exchange membrane is interposed between the anode and cathode electrodes, Some of them are separated into alkaline ionized water and acidic ionized water by utilizing the electrolysis action. Moreover, as such an alkaline ionized water apparatus, there are a type fixed to a water supply currant (faucet), a type arranged in the middle of a water pipe, a so-called built-in type.

  As a built-in type alkaline ion water conditioner, for example, when a user opens a faucet, tap water is passed from a raw water pipe and supplied to an electrolytic cell. In this electrolytic cell, alkaline water and acidic ion water are separated. Generated. And while the alkaline water produced | generated by the electrolytic vessel is discharged through a water discharge pipe, acidic ion water is drained through an acidic ion water discharge pipe. Further, the user closes the faucet and stops the water flow from the raw water pipe, thereby stopping the discharge of alkaline water (for example, see Patent Document 1).

  It is known that alkaline ionized water has an action of activating skin and suppressing fat mass. In addition, it is known that alkaline ionized water is used as a beverage containing active hydrogen that reacts with active oxygen in the body. In order to effectively suppress fat masses or to obtain active hydrogen that reacts with active oxygen, it is necessary to generate alkaline ion water sufficiently containing active hydrogen with an alkali ion water conditioner.

  However, it cannot be said that the active ion is sufficiently contained in the alkaline ionized water produced by the conventional alkaline ionized water device, and the skin cannot be activated to the extent that the fat mass is suppressed. Is the current situation. Although it is conceivable that hydrogen gas is dissolved by bubbling hydrogen gas from the outside, since the apparatus becomes large and dangerous, it has not been realized.

JP-A-10-192858

  The present invention has been made in view of the above situation, and provides a hydrogen-containing electrolyzed water generating apparatus capable of including hydrogen gas bubbles generated in a cathode-side electrode in the hydrogen-containing electrolyzed water in a state as small as possible. With the goal.

  In addition, the present invention has been made in view of the above situation, and includes a hydrogen-containing electrolyzed water generation device that can include hydrogen gas bubbles generated in the cathode-side electrode in the hydrogen-containing electrolyzed water in a state as small as possible. The purpose is to provide hot water supply facilities.

  In order to achieve the above object, a hydrogen-containing electrolyzed water generating apparatus according to the present invention according to claim 1 is provided with an ion exchange membrane in an electrolytic cell sandwiched between a pair of an anode and a cathode, and water is provided in a passage on the cathode side. The electrode on the cathode side is formed in a mesh shape.

  In the present invention according to claim 1, since the electrode on the cathode side is formed in a mesh shape, the wetting angle of the hydrogen gas bubbles generated on the electrode can be reduced, and the hydrogen gas bubbles can be reduced. Can be withdrawn. In other words, the generated hydrogen gas and the adsorption force generated on the surface of the electrode are such that the surface tension is suppressed by a state close to point contact, and the bubbles of hydrogen gas can be released in a small state.

  Therefore, hydrogen gas bubbles generated in the cathode-side electrode can be contained in the hydrogen-containing electrolyzed water in a state as small as possible, and hydrogen-containing reduced water sufficiently containing active hydrogen can be obtained. . The cross-sectional shape of the mesh can be various shapes such as a circle, a triangle, and a polygon having four or more squares.

  And the hydrogen containing electrolyzed water generating apparatus of this invention which concerns on Claim 2 is a hydrogen containing electrolyzed water generating apparatus of Claim 1. WHEREIN: The said ion exchange membrane is a cation exchange membrane, The said cation exchange membrane, A flow path on the inflow side of the flow path is formed between the electrode on the cathode side, and a flow path on the outflow side of the flow path is formed on the opposite side of the cation exchange membrane of the electrode on the cathode side. It is characterized by.

  In the present invention according to claim 2, only positive hydrogen ions are permeated by the cation exchange membrane, and negative ions are hardly generated on the anode side, and generation of acidic gas is suppressed to reduce acidic electrolyzed water. Can do. Then, hydrogen gas bubbles are passed from the inflow side path of the flow path formed between the cation exchange membrane and the cathode side electrode to the surface on the opposite side of the cathode side electrode so that the hydrogen gas flows out together with the water flow. Let For this reason, it becomes easy to detach | leave from an electrode in the state where the bubble of hydrogen gas is small.

  Moreover, the hydrogen-containing electrolyzed water generating apparatus of the present invention according to claim 3 is the hydrogen-containing electrolyzed water generating apparatus according to claim 2, wherein the cation exchange membrane is in close contact with the electrode on the anode side. Features.

  In this invention which concerns on Claim 3, generation | occurrence | production of acidic gas can further be suppressed and acidic electrolyzed water can be reduced significantly.

  According to a fourth aspect of the present invention, there is provided the hydrogen-containing electrolyzed water generating device of the present invention, wherein the electrode on the anode side is formed in a mesh shape. .

  In the present invention according to claim 4, since the anode-side electrode is formed in a mesh shape, the diffusion of moisture into the cation exchange membrane is facilitated, and the cation exchange membrane can be moistened with a small amount of moisture. it can.

  Moreover, the hydrogen-containing electrolyzed water generating device of the present invention according to claim 5 is the hydrogen-containing electrolyzed water generating device according to claim 4, wherein the electrode on the anode side is formed in a cylindrical shape and is cylindrical at the outer peripheral portion. The cation exchange membrane is closely attached, and the cylindrical cathode side electrode is disposed on the outer periphery of the anode side electrode to which the cation exchange membrane is closely attached, and the flow path is formed between the anode side electrode and the cathode side. The inflow side between the electrode and the electrode is the inflow side, and the outside of the electrode on the cathode side is the outflow side, so that hydrogen-containing electrolyzed water flows out.

  Moreover, the hydrogen-containing electrolyzed water generating device of the present invention according to claim 6 is the hydrogen-containing electrolyzed water generating device according to claim 5, wherein a part of the raw water flowing into the inflow side of the flow passage is anode-side. An anode-side flow path that is fed to the inner peripheral side of the electrode is provided.

  In this invention which concerns on Claim 5 and Claim 6, the hydrogen containing electrolyzed water generating apparatus which has a cylindrical electrolytic vessel can be obtained, and can be easily installed in piping systems, such as a tap water piping.

  In order to achieve the above object, a hot water supply facility according to a seventh aspect of the present invention comprises two hydrogen-containing electrolyzed water generating devices according to any one of the first to sixth aspects, The raw water inlet side of the water generator is connected to the cold water source, the raw water inlet side of the other hydrogen-containing electrolyzed water generator is connected to the hot water source, and the outlet side of the flow path of the two hydrogen-containing electrolyzed water generators is one mixed hot water supply It is characterized by comprising control means connected to the pipe and individually controlling the energization status of the electrodes of the two hydrogen-containing electrolyzed water generating apparatuses.

  The hot water supply facility according to claim 8 is the hot water supply facility according to claim 7, wherein the control means is provided with a function of performing a cathode surface cleaning operation by reversing the polarity of the electrodes. Features.

  In this invention which concerns on Claim 7 and Claim 8, the hot water supply provided with the hydrogen-containing electrolyzed water production | generation apparatus which can make hydrogen-containing electrolyzed water contain the bubble of the hydrogen gas produced | generated by the electrode on the cathode side as small as possible It becomes equipment.

  The hydrogen-containing electrolyzed water generating apparatus of the present invention can include hydrogen gas bubbles generated in the electrode on the cathode side in the hydrogen-containing electrolyzed water in a state as small as possible.

  Moreover, the hot water supply equipment of the present invention is a hot water supply equipment provided with a hydrogen-containing electrolyzed water generation device that can contain hydrogen gas bubbles generated in the cathode-side electrode in the hydrogen-containing electrolyzed water in a state as small as possible.

  FIG. 1 illustrates the principle of a hydrogen-containing electrolyzed water generating device according to an embodiment of the present invention, FIG. 2 illustrates the configuration concept of a hydrogen-containing electrolyzed water generating device according to an embodiment of the present invention, and FIG. FIG. 4 is a cross-sectional view showing the entire hydrogen-containing electrolyzed water generating device according to an embodiment of the present invention, FIG. 4 is a perspective view of an exploded electrode, FIG. 5 is a partial cross-sectional view of an assembled electrode, and FIG. (A) and (b) are side surfaces and planes representing the appearance of the lower base, FIGS. 7 (a) and (b) are side surfaces and planes representing the appearance of the upper base, and FIGS. 8 (a) and (b). Is a side surface and a plane representing the appearance of the negative electrode, FIGS. 9A and 9B are side surfaces and a plane representing the appearance of the positive electrode, FIG. 10 is a plane representing the state of arrangement of the electrodes, and FIG. A schematic system of a hot water supply facility according to an embodiment, FIG. 12 shows a control block concept of the hot water supply facility.

  The principle of the hydrogen-containing electrolyzed water generating apparatus of the present invention will be described based on FIG.

  As shown in the drawing, an ion exchange membrane 2 is provided in the electrolytic cell 1, and the inside of the electrolytic cell 1 is divided into two passages 3 and 4 by the ion exchange membrane 2. The passage 3 is provided with a positive electrode 5 (anode side electrode), the passage 4 is provided with a negative electrode 6 (cathode side electrode), and the passage 4 is defined as a cathode side passage 4 across the ion exchange membrane 2. Yes. That is, the ion exchange membrane 2 is provided between a pair of electrodes (positive electrode 5 and negative electrode 6).

  A flow passage 7 through which water (raw water) flows is provided in the cathode-side passage 4 and the anode-side passage 3, and the water that has passed through the passage 4 from the flow passage 7 is conditioned and discharged as alkaline ionized water. The water flowing through the passage 3 from the water 7 is conditioned and discharged as acidic ion water. The negative electrode 6 provided in the passage 4 is formed in a fine mesh.

A predetermined voltage is applied between the positive electrode 5 and the negative electrode 6, and water (raw water) supplied into the electrolytic cell 1 flows into the passages 3 and 4 separated by the ion exchange membrane 2. The water that has flowed in is ionized into hydrogen ions H ⁺ and hydroxide ions OH ⁻ between the ion exchange membrane 2 and the positive electrode 5 and the negative electrode 6, that is, when passing through the passages 3 and 4.

The ionized hydrogen ions H ⁺ pass through the ion exchange membrane 2 and gather in the passage 4 on the cathode side, hydrogen gas bubbles are generated in the negative electrode 6, and water (2H ₂ O) is converted into H by electrons (2e ⁻ ). _The water is adjusted to ₂ +2 OH ⁻ (hydrogen gas is dissolved in water), and alkali ion water in which hydrogen is dissolved is generated. On the other hand, ionized hydroxide ions OH ⁻ permeate the ion exchange membrane 2 and gather in the passage 3 on the anode side, and water (2H ₂ O) is regulated to O ₂ + 4H ⁺ + 4e ⁻ , thereby generating acidic ion water. Is done.

  In the hydrogen-containing electrolyzed water generating apparatus of the present invention, the negative electrode 6 is formed in a fine mesh. For this reason, the wetting angle of the hydrogen gas bubbles generated in the negative electrode 6 can be reduced, and the bubbles of hydrogen gas can be released in a small state. In other words, the generated hydrogen gas and the adsorption force generated on the surface of the negative electrode 6 are those in which the surface tension is suppressed by a state close to point contact, and the bubbles of hydrogen gas can be released in a small state.

  For this reason, it becomes easy for hydrogen gas to dissolve in water, and it becomes possible to keep hydrogen gas in water for a long time.

  Based on FIG. 2, the concept of the concrete structure of the hydrogen containing electrolyzed water generating apparatus which concerns on the example of 1 embodiment of this invention is demonstrated.

As shown in the figure, a cation exchange membrane 12 is provided in the electrolytic cell 11, and the inside of the electrolytic cell 11 is divided into two passages 13 and 14 by the cation exchange membrane 12. The cation exchange membrane 12 is a negatively charged membrane that attracts only positive ions and repels negative ions. That is, it is a film that transmits only cations (hydrogen ions H ⁺ ), and is a film that repels anions (hydroxide ions OH ⁻ ).

  A positive electrode 15 (anode side electrode) is provided in the passage 13 with the cation exchange membrane 12 interposed therebetween, and a negative electrode 16 (cathode side electrode) is provided in the passage 14. The positive electrode 15 and the negative electrode 16 are formed in a fine mesh. The positive electrode 15 is in close contact with the cation exchange membrane 12 on the passage 13 side. An upper spacer 17 is attached to the upper part of the cation exchange membrane 12 on the passage 14 side, and an upper part of the negative electrode 16 is attached to the upper spacer 17. The lower part of the negative electrode 16 is attached to the inner wall of the electrolytic cell 11 by a lower spacer 18.

  A raw water inlet 19 is provided in the lower part of the electrolytic cell 11, and a flow passage 20 is formed below the cation exchange membrane 12 to distribute the raw water flowing from the raw water inlet 19 to the passages 13 and 14. That is, the flow passage 20 allows raw water to flow from below the cation exchange membrane 12 into the passage 13 on the side of the cation exchange membrane 12 to which the positive electrode 15 is in close contact, and between the negative electrode 16 and the cation exchange membrane 12. Raw water is allowed to flow in between (the front side of the negative electrode 16).

  The raw water flowing in from the front side of the negative electrode 16 moves to the back side of the negative electrode 16 formed in a mesh shape and is discharged (indicated by an arrow in the figure) due to the presence of the upper spacer 17. That is, a flow path 21 on the inflow side of the flow path is formed between the cation exchange membrane 12 and the negative electrode 16, and a flow path 22 on the outflow side of the flow path is formed on the opposite side of the negative electrode 16 to the cation exchange membrane 12. ing.

A predetermined voltage is applied between the positive electrode 15 and the negative electrode 16, and water (raw water) supplied into the electrolytic cell 11 flows into the passages 13 and 14 separated by the cation exchange membrane 12. The flowing water is ionized into hydrogen ions H ⁺ and hydroxide ions OH ⁻ when passing through the passages 13 and 14.

The ionized hydrogen ions H ⁺ permeate the cation exchange membrane 12 and gather in the cathode-side passage 14, hydrogen gas bubbles are generated in the negative electrode 16, and water (2H ₂ O) is generated by electrons (2e ⁻ ). The water is adjusted to H ₂ + 2OH ⁻ (hydrogen gas is dissolved in water) to generate alkali ion water in which hydrogen is dissolved. On the other hand, the ionized hydroxide ion OH ⁻ does not permeate the cation exchange membrane 12, so that the hydroxide ion OH ⁻ does not collect in the passage 13 on the anode side, and electrons are not given, so generation of O ₂ is greatly suppressed. Almost no acidic ion water is generated.

  Since the negative electrode 16 is formed in a fine mesh mesh, the wetting angle of the hydrogen gas bubbles generated on the negative electrode 16 can be reduced, and the hydrogen gas bubbles can be released in a small state. . That is, the adsorption force generated on the surface of the generated hydrogen gas and the negative electrode 16 is such that the surface tension is suppressed by a state close to point contact, and bubbles of hydrogen gas can be released in a small state. Gas becomes easy to dissolve in water, and it becomes possible to keep hydrogen gas in water for a long time.

  Then, hydrogen gas bubbles are passed through the surface on the opposite side (back surface) of the negative electrode 16 from the inflow side path of the flow path formed between the cation exchange membrane 12 and the negative electrode 16, and together with the water flow, the hydrogen gas As a result, the hydrogen gas bubbles are easily detached from the negative electrode 16.

Since the positive electrode 15 is in close contact with the cation exchange membrane 12 on the passage 13 side, only positive hydrogen ions H ⁺ are transmitted through the cation exchange membrane 12, and hydroxide ions OH ⁻ are hardly generated on the positive electrode side. In addition, the generation of acidic gas can be suppressed and the amount of acidic ionized water can be greatly reduced.

  In addition, since the positive electrode 15 is formed in a mesh shape, the diffusion of moisture into the cation exchange membrane 12 is facilitated, and the cation exchange membrane 12 can be moistened with a small amount of moisture. Emissions can be greatly reduced. In the case of a diaphragm type electrolytic apparatus, the production ratio of alkaline ionized water and acidic ionized water is 2: 1 according to Faraday's law. It has been confirmed that the discharge amount of acidic ion water can be reduced to about 1 / 100th of alkaline ion water by making the positive electrode 15 mesh and closely contacting the cation exchange membrane 12.

  The hydrogen-containing electrolyzed water generating device shown in FIG. 2 will be described more specifically based on FIGS. In addition, the same code | symbol is attached | subjected to the same member as the member shown in FIG.

  As shown mainly in FIG. 3, the cylindrical electrolytic cell 11 is fixed to the lower base 31, and the upper base 32 is fixed to the upper part of the electrolytic cell 11. The electrolytic cell 11 has a configuration in which a plastic sheet 11a is arranged inside a cylinder except for an entrance / exit. A raw water inlet 19 is provided on the lower cylindrical surface of the electrolytic cell 11, and a discharge port 33 of alkaline ion water is provided on the upper cylindrical surface of the electrolytic cell 11. The upper base 32 is provided with a discharge port 34 for acidic water.

  As shown mainly in FIGS. 3 and 6, a cylindrical lower socket 35 is provided on the upper surface of the lower base 31, and a surface of the lower base 31 substantially corresponding to the lower socket 35 will be described later. Drop portions 36 and 37 are formed in which the flanges of the electrode rods are fitted via gaskets. As shown mainly in FIGS. 3 and 7, a cylindrical upper socket 38 is provided on the lower surface of the upper base 32, and a discharge port 34 is provided on the upper base 32 inside the upper socket 38.

  The lower socket 35 is provided with a lower spacer 18 for restricting the flow of raw water to the inner peripheral side (path 22 to be described later) of the electrolytic cell 11 outside the negative electrode 16. An inflow port 35a is provided for inflowing into the air.

  As shown mainly in FIGS. 3 to 5, the lower base 31 inside the lower socket 35 is provided with a cylindrical base 41 having a ceiling surface. An inlet 42 of raw water is formed on the cylindrical surface of the pedestal 41, and an outlet 43 for sending raw water from the inside of the pedestal 41 to the ceiling surface is formed at the center of the ceiling surface of the pedestal 41.

  A cylindrical positive electrode 15 is disposed on the ceiling surface of the pedestal 41, and the positive electrode 15 has the same diameter as the pedestal 41. The positive electrode 15 is formed in a fine mesh mesh, and a cylinder of the cation exchange membrane 12 is fitted around the positive electrode 15. That is, the cylindrical cation exchange membrane 12 is in close contact with the outer peripheral portion of the cylindrical positive electrode 15.

  The inner circumference of the upper end portion of the positive electrode 15 is fitted to the outer circumference side of the upper socket 38, and the inner circumference of the lower end portion of the cylindrical cation exchange membrane 12 is fitted to the cylindrical portion of the pedestal 41. That is, the positive electrode 15 having the cation exchange membrane 12 in close contact with the outer peripheral portion is fitted in the upper socket 38 and the pedestal 41 and accommodated in the electrolytic cell 11.

  As shown mainly in FIGS. 3 to 5, 9, and 10, a positive electrode rod 45 serving as a positive electrode terminal is fixed to the inner peripheral side of the positive electrode 15, and a flange is formed below the positive electrode rod 45. A portion 46 is provided. A gasket 47 is disposed on the drop portion 36 of the lower base 31, the flange portion 46 of the positive electrode rod 45 engages with the drop portion 36 via the gasket 47, and the lower end portion of the positive electrode rod 45 is at the bottom. The through hole 31a of the side base 31 is penetrated, and the lower end portion is guided to the outside from the lower base 31 and connected to a power source (not shown).

  As shown mainly in FIGS. 3 to 5, a cylindrical negative electrode 16 is concentrically arranged with a gap on the outer peripheral side of the positive electrode 15 in which the cation exchange membrane 12 is in close contact with the outer peripheral portion. A path 21 is formed between the ion exchange membrane 12 and the negative electrode 16. The negative electrode 16 is formed in a fine mesh mesh, an upper spacer 17 is provided on the outer periphery of the cation exchange membrane 12 on the upper end side of the positive electrode 15, and the upper end of the negative electrode 16 is fitted to the upper spacer 17. The upper end of the path 21 is closed.

  The lower end portion of the negative electrode 16 is fitted to the inner peripheral side of the lower socket 35, the negative electrode 16 is fitted to the upper spacer 17 and the lower socket 35, and the positive electrode with the cation exchange membrane 12 in close contact with the outer peripheral portion. It is accommodated in the electrolytic cell 11 in a state of being arranged outside the electrode 15. The inner peripheral side of the electrolytic cell 11 outside the negative electrode 16 (portion communicating with the discharge port 33) is a path 22.

  As shown mainly in FIGS. 3 to 5, 8, and 10, a negative electrode rod 55 serving as a negative electrode terminal is fixed to the outer peripheral side of the negative electrode 16, and a flange portion is disposed below the negative electrode rod 55. 56 is provided. A gasket 57 is disposed on the drop portion 37 of the lower base 31, the flange portion 56 of the negative electrode rod 55 is engaged with the drop portion 37 via the gasket 57, and the lower end portion of the negative electrode rod 55 is at the bottom. The through hole 31a of the side base 31 is penetrated, and the lower end portion is guided to the outside from the lower base 31 and connected to a power source (not shown).

  The raw water supplied from the raw water inlet 19 of the electrolytic cell 11 is guided to the inside of the lower socket 35 (flow passage 20) and sent to a path 21 formed between the cation exchange membrane 12 and the negative electrode 16. A part of the raw water guided to the inside of the lower socket 35 is sent from the inlet 42 to the inside of the pedestal 41 and led from the outlet 43 to the inner peripheral side of the positive electrode 15. That is, a positive electrode side flow path is configured in which a part of the raw water flowing into the inflow side (path 21) of the flow path is sent to the inner peripheral side of the positive electrode 15.

A predetermined voltage is applied between the positive electrode 15 and the negative electrode 16, the water flowing in from the raw water inlet 19 and flowing into the path 21 and the water sent to the inner peripheral side of the positive electrode 15 are hydrogenated in the course of circulation. It is ionized into ions H ⁺ and hydroxide ions OH ⁻ .

The ionized hydrogen ions H ⁺ permeate through the cation exchange membrane 12 and collect in the cathode-side path 21, hydrogen gas bubbles are generated in the negative electrode 16, and water (2H ₂ O) is generated by electrons (2e ⁻ ). The water is adjusted to H ₂ + 2OH ⁻ (hydrogen gas is dissolved in water) to generate alkali ion water in which hydrogen is dissolved.

  Then, hydrogen gas bubbles are passed through the path 21 between the cation exchange membrane 12 and the negative electrode 16 to the surface on the opposite side (outer peripheral side) of the negative electrode 16 so that the hydrogen gas flows out together with the water flow. The bubbles are separated from the negative electrode 16 in a small state. Since the negative electrode 16 is formed in a fine mesh mesh shape, hydrogen gas bubbles are released in a small state, the hydrogen gas is easily dissolved in water, and the hydrogen gas can remain in the water for a long time. Become. Alkaline ion water in which hydrogen gas is dissolved is supplied from a discharge port 33 to a required location.

On the other hand, since the ionized hydroxide ion OH ⁻ does not pass through the cation exchange membrane 12, the hydroxide ion OH ⁻ does not collect on the inner peripheral side of the positive electrode 15 on the anode side, and almost no acidic ion water is generated. Further, since the positive electrode 15 is formed in a mesh shape, the diffusion of moisture to the cation exchange membrane 12 is facilitated, and the cation exchange membrane 12 can be moistened with a small amount of water, so Emissions can be greatly reduced. For this reason, the acidic ion water discharged | emitted from the discharge port 34 becomes very little.

  In the hydrogen-containing electrolyzed water generating apparatus described above, since the cylindrical negative electrode 16 is formed in a fine mesh mesh shape, hydrogen gas bubbles can be made to flow away from the inside to the outside together with the water flow and separated. This makes it easier for hydrogen gas to dissolve in water, allowing the hydrogen gas to remain in the water for a long time.

Further, since the cylindrical cation exchange membrane 12 is provided in close contact with the outer side of the cylindrical positive electrode 15, only positive hydrogen ions H ⁺ are permeated through the cation exchange membrane 12, and hydroxide ions OH. ^- is less likely to occur in the positive electrode side, it is possible to suppress the generation of acid gas, it is possible to greatly reduce the emission of acidic ionized water. Further, since the positive electrode 15 is formed in a mesh shape, the diffusion of moisture into the cation exchange membrane 12 is facilitated, and the cation exchange membrane 12 can be wetted by supplying a small amount of moisture from the lower part. , Acid ion water discharge can be greatly reduced.

  An example of the hot water supply equipment provided with the hydrogen-containing electrolyzed water generating device 61 described above will be described with reference to FIGS.

  The illustrated hot water supply equipment includes two hydrogen-containing electrolyzed water generating devices 61, and hot water as a hot water source and tap water as a cold water source are sent to the raw water inlet 19 as raw water. Alkaline ion water from the discharge port 33 is supplied to a mixing plug 62 as a mixed hot water supply pipe through a pipe 64 having a flow switch 63. The ratio of the alkaline ionized water to the tap water is adjusted by the mixing plug 62 to obtain alkaline ionized water having a desired temperature.

  A discharge pipe 66 is connected to the discharge port 34 of the hydrogen-containing electrolyzed water generating device 61, and a first electromagnetic valve 65 is provided in the discharge pipe 66. Further, a branch pipe 67 is connected after branching from the pipe 64, and the branch pipe 67 is connected to the discharge pipe 66 on the downstream side of the first electromagnetic valve 65. The branch pipe 67 is provided with a second electromagnetic valve 68.

  In the hot water supply facility 81 provided with the two hydrogen-containing electrolyzed water generating devices 61, the energization state of the electrodes is individually controlled by the control device 71 as the control means. That is, the control device 71 receives signals from the flow switch 63, the first electromagnetic valve 65, and the second electromagnetic valve 68, and the control device 71 outputs a power source and various operation signals. For example, the electrolysis is performed when alkaline ionized water is flowing based on the signal from the flow switch 63, or the cleaning operation is performed with the polarity of the electrode to be energized reversed.

  An example of the operation of the hot water supply facility will be described.

  In a state where water is filled in the pipe 64, during normal water supply, the first electromagnetic valve 65 is opened and the second electromagnetic valve 68 is closed. In the state where the mixing plug 62 is closed, since the alkaline ionized water does not flow into the pipe 64, the flow switch 63 is turned off. When the flow switch 63 is off, the electrolysis is stopped by a command from the control device 71. When the mixing plug 62 is opened, the alkaline ionized water inside the pipe 64 flows and the flow switch 63 is turned on. When the flow switch 63 is on, electrolysis is started by a command from the control device 71. Thus, the signal of the flow switch 63 is used as a trigger for starting / stopping electrolysis.

  The on / off state of the flow switch 63 is stored in the control device, and the cleaning operation is performed based on the accumulated time from when the flow switch 63 changes from on to off. For example, the cleaning operation is set to be performed every 24 hours. In the washing operation, the polarity of the energized electrode is reversed. That is, the second electromagnetic valve 68 is opened, positive power is supplied to the negative electrode, and negative power is supplied to the positive electrode. The alkaline ionized water after the cleaning process is discharged from the discharge pipe 66, and the acidic ionized water after the cleaning is discharged from the pipe 64 and the branch pipe 67. That is, calcium and the like attached to the electrode are removed.

  Moreover, after completion | finish of a washing process and stopping electrolysis, raw | natural water substitution for discharging | emitting electrolyzed water is implemented. Since the polarity of the electrode to be energized is reversed in the cleaning process, it is conceivable that the acidic ion water remains in the path of the alkaline ion water and exits from the faucet immediately after the cleaning process is completed. For this reason, after the washing is stopped, the raw water is supplied in a state where the electrolysis is stopped by opening the electromagnetic valve for a predetermined time, and the inside of the path is replaced with the raw water without electrolysis. After the replacement is completed, the second solenoid valve 68 is closed and an operation involving normal electrolysis is performed.

  Hot water supply can be instructed through the remote controller 72, and the status of hot water supply, washing, and replacement of raw water is displayed on the remote controller 72.

  The hot-water supply equipment described above is a hot-water supply equipment provided with a hydrogen-containing electrolyzed water generating device that can contain hydrogen gas bubbles generated in the negative electrode 16 in the hydrogen-containing electrolyzed water in a state as small as possible.

  INDUSTRIAL APPLICATION This invention can be utilized in the industrial field | area of the hydrogen containing electrolyzed water production | generation apparatus and hot water supply equipment for obtaining hydrogen containing electrolyzed water from raw | natural waters, such as tap water.

It is principle explanatory drawing of the hydrogen containing electrolyzed water generating apparatus which concerns on one example of embodiment of this invention. 1 is a conceptual diagram of a configuration of a hydrogen-containing electrolyzed water generating device according to an embodiment of the present invention. It is sectional drawing showing the whole hydrogen containing electrolyzed water generating apparatus which concerns on the example of 1 embodiment of this invention. It is a perspective view of the state which decomposed | disassembled the electrode. It is a partial cross section figure of the state which assembled | attached the electrode. It is an external view of a lower side base. It is an external view of an upper base. It is an external view of a negative electrode. It is an external view of a positive electrode. It is a top view showing the arrangement | positioning condition of an electrode. 1 is a schematic system diagram of a hot water supply facility according to an embodiment of the present invention. It is a control block conceptual diagram of a hot water supply equipment.

Explanation of symbols

11 Electrolysis cell 12 Cation exchange membrane 13 Passage (anode side)
14 passage (cathode side)
15 Positive electrode 16 Negative electrode 17 Upper spacer 18 Lower spacer 19 Raw water inlet 20 Flow passage 21 Path (inflow side)
22 route (outflow side)
31 Lower base 32 Upper base 33 Discharge port 34 Discharge port 35 Lower socket 36, 37 Drop part 38 Upper socket 41 Base 42 Inlet 43 Outlet 45 Positive electrode rod 46 Flange portion 47 Gasket 55 Negative electrode rod 56 Flange Portion 57 Gasket 61 Hydrogen-containing electrolyzed water generator 62 Mixing plug 63 Flow switch 64 Pipe 65 First solenoid valve 66 Drain pipe 67 Branch pipe 68 Second solenoid valve 71 Controller 72 Remote control 81 Hot water supply equipment

Claims (8)

  An ion exchange membrane is provided in the electrolytic cell sandwiched between a pair of anode and cathode electrodes, a flow passage for circulating water is provided in the cathode side passage, and the electrode on the cathode side is formed in a mesh shape. A hydrogen-containing electrolyzed water generating apparatus. The hydrogen-containing electrolyzed water generating device according to claim 1,
The ion exchange membrane is a cation exchange membrane, an inflow path of the flow passage is formed between the cation exchange membrane and the electrode on the cathode side, and the cation exchange membrane of the electrode on the cathode side A hydrogen-containing electrolyzed water generating apparatus, wherein a flow path on the outflow side of the flow passage is formed on the opposite side of the flow path. The hydrogen-containing electrolyzed water generating device according to claim 2,
The cation exchange membrane is in close contact with the electrode on the anode side. In the hydrogen-containing electrolyzed water generating apparatus according to claim 3,
The electrode on the anode side is formed in a mesh shape. A hydrogen-containing electrolyzed water generating apparatus, wherein: In the hydrogen-containing electrolyzed water generating apparatus according to claim 4,
The electrode on the anode side is cylindrical and the cylindrical cation exchange membrane is in close contact with the outer periphery,
The cylindrical cathode side electrode is arranged on the outer periphery of the anode side electrode to which the cation exchange membrane is closely attached,
The flow path has an inflow side between the electrode on the anode side and the electrode on the cathode side, and an outside of the electrode on the cathode side serves as the outflow side so that hydrogen-containing electrolyzed water flows out. The hydrogen-containing electrolyzed water generating apparatus characterized by the above-mentioned. In the hydrogen-containing electrolyzed water generating apparatus according to claim 5,
A hydrogen-containing electrolyzed water generating apparatus, comprising: an anode-side flow path that sends a part of raw water flowing into the inflow side of the flow passage to the inner peripheral side of the electrode on the anode side.   Two hydrogen-containing electrolyzed water generating devices according to any one of claims 1 to 6 are provided, the raw water inlet side of one hydrogen-containing electrolyzed water generating device is connected to a cold water source, and the other hydrogen-containing electrolyzed water The raw water inlet side of the generator is connected to the hot water source, the outlet side of the flow path of the two hydrogen-containing electrolyzed water generators is connected to one mixed hot water pipe, and the energization status of the electrodes of the two hydrogen-containing electrolyzed water generators A hot water supply facility provided with a control means for individually controlling the water. The hot water supply facility according to claim 7,
The hot water supply facility, wherein the control means is provided with a function of performing a cathode surface cleaning operation by reversing the polarity of the electrodes.