JP2010284504A - Bathing equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide bathing equipment which reduces acid ion water when alkali ion water is obtained by electrolysis. <P>SOLUTION: A cation exchange membrane 12 is sandwiched between a positive electrode 15 and a negative electrode 16. A channel 21 which passes tap water is provided in a cathode-side passage between the negative electrode 16 and the cation exchange membrane 12, and the cation exchange membrane 12 is closely contacted to the positive electrode 15. The cation exchange membrane 12 on the side of the positive electrode 15, is kept in a wet state where an H<SP>+</SP>ion penetrates for generating bubbles of hydrogen gas on the negative electrode 16. Thus the generation of an oxygen ion is suppressed and the acid ion water is reduced without having a hydroxy-ion OH<SP>-</SP>penetrated through the cation exchange membrane 12. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a bathing facility using hydrogen-containing electrolyzed water.

  As an alkaline ion adjuster (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, A built-in type water conditioner that separates and generates hydrogen-containing electrolyzed water and acidic ionic water using electrolysis is known (for example, see Patent Document 1).

  On the other hand, due to a decrease in metabolism or the like, fat in the body is not fully metabolized, and a fat mass that becomes a mass around fat cells may be generated. The presence of fat mass has been highlighted due to the rise in beauty and health orientation. In addition, when blood is subjected to oxidative stress, the surfaces of red blood cells have an adhesive force and the surfaces adhere to each other and aggregate (hemolyze), which may cause arteriosclerosis.

  It is known that taking supplements is effective in suppressing fat mass and oxidative stress, but there are also problems such as side effects associated with taking supplements. For this reason, attention has been focused on activating the skin by bathing with hydrogen-containing electrolyzed water to suppress fat mass and to suppress hemolysis of blood. The hydrogen-containing electrolyzed water used for bathing is generally obtained from tap water using an alkali ion water conditioner.

  However, when obtaining hydrogen-containing electrolyzed water from tap water, it is necessary to maintain a predetermined temperature for bathing, and the amount of dissolved hydrogen decreases with time, and the redox potential increases and the reducing power decreases. Resulting in. For this reason, when hydrogen-containing electrolyzed water obtained from tap water is used for bathing, it was difficult to maintain an effective state for suppressing fat mass and blood hemolysis.

JP-A-10-192858

  This invention is made | formed in view of the said condition, and it aims at providing the bathing equipment which can use the hydrogen containing electrolyzed water which maintained the reducing power for bathing.

  In order to achieve the above object, the bathing equipment of the present invention according to claim 1 is an electrolysis in which an ion exchange membrane is provided in an electrolytic cell sandwiched between a pair of electrodes of an anode and a cathode, and hydrogen-containing electrolyzed water is obtained by electrolysis. A water generation means; a bathtub in which hot water for bathing is stored; and the hot water stored in the bathtub is sent to the electrolysis water generation means and the hydrogen-containing electrolyzed water generated in the electrolysis water generation means is used as the circulating fluid in the bathtub. And a circulation path for circulation.

  In this invention which concerns on Claim 1, the hydrogen containing electrolyzed water with which the reducing power is maintained can be made into the hot water of a bathtub by circulating hydrogen containing electrolyzed water between a bathtub and an electrolyzed water production | generation means. For this reason, it becomes possible to use the hydrogen containing electrolyzed water which maintained the reducing power for bathing.

  The bathing facility of the present invention according to claim 2 is the bathing facility according to claim 1, wherein the electrolytic water generating means is provided in a hot water supply path of hot water supply means for supplying hot water to the bathtub, and the circulation path and the Switching means for switching the hot water supply path is provided.

  In this invention which concerns on Claim 2, the hot water from a hot-water supply means is electrolyzed, it can be made into hydrogen-containing electrolyzed water which has a reducing power, and hot water is supplied to a bathtub, and hydrogen-containing electrolyzed water can be supplied as hot water of a bathtub. . After the hot water supply, the hot water in the bathtub is circulated in the circulation path by the switching means, whereby the hydrogen-containing electrolytic water is circulated between the bathtub and the electrolytic water generating means, and the state in which the reducing power is maintained is maintained.

  The bathing facility of the present invention according to claim 3 is the bathing facility according to claim 2, wherein the hot water supply means includes a hot water storage tank for storing hot water obtained by a heat pump, and is stored in the hot water storage tank. The hot water is sent from the hot water supply path to the bathtub. The bathing facility according to a fourth aspect of the present invention is the bathing facility according to the third aspect, further comprising a heat exchanger that raises the temperature of the circulating fluid in the circulation path using hot water from the hot water storage tank as a heat medium. It is characterized by that.

  In this invention which concerns on Claim 3 and Claim 4, it can be set as the bathing facility using the hot water supply equipment which obtains the thermal energy of the hot water for hot water supply with a heat pump.

  Moreover, the bathing facility of the present invention according to claim 5 is the bathing facility according to any one of claims 1 to 4, wherein the electrolyzed water generating means includes the electrode on the cathode side and the electrode on the anode side. Each of the electrodes is formed in a mesh shape, and includes a flow passage for circulating a circulating fluid in the cathode-side passage, and the ion exchange membrane is a cation exchange membrane and is in close contact with the electrode on the anode side to the flow passage. It is characterized by facing.

In the present invention according to claim 5, since the cation exchange membrane is in close contact with the electrode on the anode side and faces the flow path, hydrogen ions H ⁺ are present on the cation exchange membrane on the electrode side on the anode side. By making the permeation wet state, hydrogen ion bubbles can be generated on the cathode-side electrode, and hydroxide ions OH ⁻ do not permeate the cation exchange membrane, so that the generation of oxygen ions is suppressed and acidic ions are generated. Water can be reduced. Further, since the cathode-side electrode is formed in a mesh shape, the wetting angle of hydrogen gas bubbles generated on the electrode can be reduced, hydrogen gas bubbles can be released in a small state, Hydrogen-containing electrolyzed water in which the gas is nanobubbles can be sent to the bathtub.

  The bathing facility according to a sixth aspect of the present invention is the bathing facility according to the fifth aspect, wherein the electrolyzed water generating means is configured such that the electrode on the anode side has a cylindrical shape and the positive electrode having a cylindrical shape on an outer peripheral portion. The ion exchange membrane is in close contact, and the anode on the anode side to which the cation exchange membrane is in close contact is disposed on the outer periphery of the cylindrical cathode side, and the flow path is formed between the anode side electrode and the cathode side electrode. A space between the electrodes is an inflow side of the circulating fluid, and an outer side of the electrode on the cathode side is an outflow side of the circulating fluid, so that hydrogen-containing electrolyzed water flows out.

  In this invention which concerns on Claim 6, it becomes an electrolyzed water production | generation means which has a cylindrical electrolytic vessel, can be easily installed in piping, such as a circulation system, and installation also becomes easy also about the existing hot water supply equipment.

  The bathing facility of the present invention according to claim 7 is the bathing facility according to claim 6, comprising an anode-side channel on the inner peripheral side of the anode-side electrode, and the circulation to the anode-side channel. The anode side flow path is provided with a regulating member for regulating the inflow amount of the fluid.

  In the present invention according to claim 7, the amount of the circulating fluid flowing into the anode side is restricted and restricted by the restriction member, so that the acidic ion water can be reduced to a minimum, Drainage can be greatly reduced.

  Moreover, the bathing facility of the present invention according to claim 8 is the bathing facility according to any one of claims 1 to 4, wherein the electrolyzed water generating means is configured such that the ion exchange membrane is water particles together with ions. The anode side electrode is cylindrical, the cylindrical neutral membrane is in close contact with the outer peripheral portion, and the anode side cylindrical electrode is in contact with the neutral side. A cathode-shaped cathode electrode is disposed, and an area between the anode-side electrode and the cathode-side electrode is an inflow side of the circulating fluid, and an outer side of the cathode-side electrode is an outflow side of the circulating fluid The hydrogen-containing electrolyzed water is flowed out, and a degassing means for degassing oxygen gas generated in the electrolyzed water inside the electrode on the anode side is provided in the flow path inside the electrode on the anode side. It is characterized by.

In the present invention according to claim 8, there is no generation of acidic water, and the electrolyzed water generated on the anode side permeates through the middle film and changes to hydrogen by reduction of hydrogen ions H ⁺ , By releasing oxygen gas generated in the electrolyzed water in the flow path by the deaeration means, hydrogen-containing electrolyzed water can be obtained without any acidic waste water.

  The bathing equipment of the present invention according to claim 9 is the bathing equipment according to claim 8, characterized in that the electrode on the cathode side and the electrode on the anode side are each formed in a mesh shape.

  In the present invention according to claim 9, since the electrode 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 released in a small state. The hydrogen-containing electrolyzed water in which hydrogen gas is made into nanobubbles can be sent to the bathtub.

  The bathing facility of the present invention makes it possible to use hydrogen-containing electrolyzed water that maintains the reducing power for bathing.

It is a schematic block diagram of the bathing equipment which concerns on the example of 1st Embodiment of this invention. It is sectional drawing of an electrolyzed water production | generation means. It is the III-III arrow directional view in FIG. It is a graph showing a time-dependent change of oxidation-reduction potential and pH. It is a table | surface figure of a time-dependent change of oxidation-reduction potential, pH, and the particle size of hydrogen gas. It is a graph showing distribution of the particle size of hydrogen gas. It is a graph showing distribution of the particle size of hydrogen gas. It is a plane sectional view showing other examples of electrolyzed water generating means. It is a graph showing a time-dependent change of oxidation-reduction potential and pH. It is a table | surface figure of a time-dependent change of oxidation-reduction potential and pH. It is a schematic block diagram of the bathing equipment which concerns on the 2nd Example of this invention. It is a schematic system diagram of a hot water supply means. It is a graph showing a time-dependent change of oxidation-reduction potential and pH. It is a table | surface figure of a time-dependent change of oxidation-reduction potential and pH. It is a graph showing a time-dependent change of oxidation-reduction potential and pH. It is a table | surface figure of a time-dependent change of oxidation-reduction potential and pH. It is sectional drawing explaining the other example of an electrolyzed water production | generation means. It is a graph showing a time-dependent change of oxidation-reduction potential and pH. It is a table | surface figure of a time-dependent change of oxidation-reduction potential and pH. It is a table | surface figure of a time-dependent change of oxidation-reduction potential and pH. It is a graph showing distribution of the particle size of hydrogen gas.

  FIG. 1 is a schematic system of a bathing facility according to an embodiment of the present invention, FIG. 2 is a side cross-sectional view for explaining the configuration of electrolyzed water generating means, and FIG. (III-III line arrow in 2) is shown. 4 and 5 show the time-dependent changes in oxidation-reduction potential and pH, FIG. 6 shows the hydrogen gas particle size distribution after 15 minutes from the start of electrolysis, and FIG. 7 shows 30 minutes from the start of electrolysis. The distribution state of the particle size of the hydrogen gas after the passage is shown.

  The outline of the bathing equipment of the present invention will be described based on FIG.

  As shown in the figure, a bathing facility 10 is provided with a bathtub 1 in which hot water for bathing is stored, and hot water is supplied to the bathtub 1 from a hot water supply facility (not shown). The bathtub 1 is provided with a circulation path 2, and the circulation path 2 is provided with electrolyzed water generating means 3. The electrolyzed water generating means 3 will be described in detail later, but an ion exchange membrane (cation exchange membrane) which is sandwiched between a pair of electrodes of an anode and a cathode and allows only ions to pass but not water particles is provided in the electrolytic cell 4. Hydrogen-containing electrolyzed water (alkali ion water) is obtained by electrolysis.

That is, the electrolytic cell 4 includes a cation exchange membrane sandwiched between a pair of electrodes (positive electrode and negative electrode), and a predetermined voltage is applied between the positive electrode and the negative electrode. The hot water circulated in the electrolytic cell 4 flows into a passage partitioned by a cation exchange membrane, and is ionized into hydrogen ions H ⁺ and hydroxide ions OH ⁻ . The ionized hydrogen ions H ⁺ pass through the cation exchange membrane and gather in the passage on the cathode side, hydrogen gas bubbles are generated at the negative electrode, and hot water (2H ₂ O) is converted to H ₂ + 2OH by electrons (2e ⁻ ). ^The water is adjusted to water (hydrogen gas is dissolved in water), and alkali ion water in which hydrogen is dissolved is generated.

  The circulation path 2 includes an intake path 6 for sending hot water in the bathtub 1 to the electrolytic cell 4 through the filter 5, and an inflow path 7 for sending alkaline ion water obtained in the electrolytic cell 4 to the bathtub 1. The intake passage 6 is provided with a circulation pump 8, and the inflow passage 7 is provided with a flow rate sensor 9. When the circulation pump 8 is driven, hot water in the bathtub 1 is sent to the electrolytic cell 4, and when the flow sensor 9 detects the flow of hot water at a predetermined flow rate, the operation of the electrolytic cell 4 is started and alkaline ionized water is circulated. The

  Reference numeral 11 in FIG. 1 is a discharge path for discharging acidic ionic water, and 12 is provided in the discharge path 11 and is opened after the operation of the electrolytic cell 4 is started to circulate the acidic ionic water. This is a solenoid valve. Although not shown, the same path as the inflow path 7 is provided via an electromagnetic valve, and the electrolyzed water generating means 3 is cleaned by controlling the discharge path and the electromagnetic valve of the same path.

  The electrolyzed water generating means 3 will be specifically described based on FIGS. 2 and 3.

  The cylindrical electrolytic cell 4 includes a lower base 31, and an upper base 32 is fixed to the upper part of the electrolytic cell 4. The electrolytic cell 4 is configured such that a plastic sheet 4a is disposed inside the cylinder except for the entrance / exit. A raw water inlet 19 is provided on the bottom cylindrical surface of the electrolytic cell 4, and the raw water inlet 19 is connected to a drawing path 6 through which hot water from the bathtub 1 (see FIG. 1) flows. A discharge port 33 through which alkaline ionized water is sent out is provided on the upper cylindrical surface of the electrolytic cell 4, and the inflow passage 7 is connected to the discharge port 33.

  A cylindrical lower socket 35 is provided on the upper surface of the lower base 31, a cylindrical upper socket 38 is provided on the lower surface of the upper base 32, and a discharge port is provided on the upper base 32 inside the upper socket 38. 34 is provided. A lower spacer 18 for restricting the inflow of hot water into the electrolytic cell 4 outside the negative electrode 16 is provided at the upper part of the lower socket 35, and an inlet 35 a for allowing hot water to flow inward is provided at the lower socket 35. ing.

  A cylindrical base 41 having a ceiling surface is provided on the lower base 31 inside the lower socket 35. A hot water inlet 42 is formed on the cylindrical surface of the pedestal 41, and an outlet 43 for sending hot 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 13 is fitted around the positive electrode 15. That is, the cylindrical cation exchange membrane 13 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 13 is fitted to the cylindrical portion of the pedestal 41. That is, the positive electrode 15 having the cation exchange membrane 13 in close contact with the outer peripheral portion is fitted into the upper socket 38 and the base 41 and accommodated in the electrolytic cell 4.

  A positive electrode rod 45 serving as a positive terminal is fixed to the inner peripheral side of the positive electrode 15, and a flange portion 46 is provided below the positive electrode rod 45. The lower part of the positive electrode rod 45 is engaged with the lower base 31 via the flange portion 46, and the lower end portion of the positive electrode rod 45 is guided to the outside through the lower base 31 and connected to a power source (not shown). Has been.

  A cylindrical negative electrode 16 is concentrically arranged on the outer peripheral side of the positive electrode 15 in which the cation exchange membrane 13 is in close contact with the outer peripheral portion, and is disposed between the cation exchange membrane 13 and the negative electrode 16. A path 21 is formed. 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 13 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 13 in close contact with the outer peripheral portion. It is accommodated in the electrolytic cell 4 in a state of being arranged outside the electrode 15. The inner peripheral side of the electrolytic cell 4 outside the negative electrode 16 (portion communicating with the discharge port 33) is a path 22.

  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 56 is provided below the negative electrode rod 55. The lower part of the negative electrode bar 55 engages with the lower base 31 via the flange part 56, and the lower end part of the negative electrode bar 55 penetrates the lower base 31 to the outside and is connected to a power source (not shown). Has been.

Hot water supplied from the raw water inlet 19 of the electrolytic cell 4 through the inlet 6 is guided to the inside of the lower socket 35 and sent to a path 21 formed between the cation exchange membrane 13 and the negative electrode 16. A part of the hot 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. A predetermined voltage is applied between the positive electrode 15 and the negative electrode 16, the hot water flowing into the raw water inlet 19 and flowing into the path 21 and the hot water sent to the inner peripheral side of the positive electrode 15 are hydrogenated during the flow process. It is ionized into ions H ⁺ and hydroxide ions OH ⁻ .

The ionized hydrogen ions H ⁺ permeate the cation exchange membrane 13 and collect in the cathode-side path 21, hydrogen gas bubbles are generated in the negative electrode 16, and hot water (2H ₂ O) is generated by electrons (2e ⁻ ). Water is adjusted to H ₂ + 2OH ⁻ (hydrogen gas is dissolved in water), and alkali ion water in which hydrogen is dissolved is generated.

  Then, hydrogen gas bubbles are passed through the path 21 between the cation exchange membrane 13 and the negative electrode 16 to the surface opposite to the negative electrode 16 (outer peripheral side) to flow out the hydrogen gas 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 (nano bubble state), the hydrogen gas is easily dissolved in water, and the hydrogen gas remains in the water for a long time. It becomes possible. Alkaline ion water in which hydrogen gas is dissolved is circulated from the discharge port 33 to the bathtub 1 (see FIG. 1) through the inflow path 7.

On the other hand, ionized hydroxide ions OH ⁻ (water particles) do not permeate the cation exchange membrane 13, so that hydroxide ions OH ⁻ do not collect on the inner peripheral side of the positive electrode 15 on the anode side, and almost acidic ionic water is generated. Not. Further, since the positive electrode 15 is formed in a mesh shape, the diffusion of moisture to the cation exchange membrane 13 is facilitated, and the cation exchange membrane 13 can be moistened with a small amount of moisture, 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 bathing facility 10 provided with the electrolyzed water generating means 3 described above, the hot water inside the bathtub 1 circulates between the electrolyzed water generating means 3 by driving the circulation pump 8 and returns to the bathtub 1 as hot water of alkaline ionized water. be able to. For this reason, since the bubble of hydrogen gas is dissolved and circulated in the hot water from the bathtub 1 in a small state, it is possible to obtain hot water having a reducing power by retaining the hydrogen gas in the hot water in the bathtub 1 for a long time. it can.

  The state of the reducing power of the hot water circulated will be described with reference to FIGS.

  Hydrogen ion index (pH) and redox potential when the amount of hot water in the bathtub 1 is 165 liters, the temperature is 42 ° C., the electrolysis current of the electrolyzed water generating means 3 is 7 A, and the circulating water amount is 15.5 liters per minute. (ORP: The larger the value on the negative side, the stronger the reducing power and the more the oxidation is suppressed).

  As shown in FIGS. 4 and 5, the pH at the initial stage of circulation (circles in FIG. 4: the same applies hereinafter) is 7.11, and ORP (Δ marks in FIG. 4 and the same applies hereinafter) is 590 mV. After 5 minutes from the start of circulation, pH becomes 7.34, ORP becomes 21 mV, after 10 minutes, pH becomes 7.66, ORP becomes -68 mV, and after 15 minutes, The pH is 7.90 and the ORP is -140 mV. After 20 minutes, the pH is 8.10 and the ORP is -224 mV. After 25 minutes, the pH is 8.21 and the ORP is -340 mV. After 30 minutes, The pH is 8.29 and the ORP is -428 mV.

  As shown in FIGS. 5 to 7, the average distribution of the hydrogen gas particle size after 15 minutes from the start of circulation is about 77 nm, and the average distribution of the hydrogen gas particle size after 30 minutes is about 45 nm. ing.

  From the above results, when 20 minutes have passed since the circulation was started, the pH exceeded 8 and the ORP was sufficiently reduced (−150 mV or less), and hot water having a reducing power was stored in the bathtub 1, and from the start of the circulation. When 30 minutes have passed, it can be seen that the hydrogen gas bubbles in a sufficiently small state are dissolved and hot water having a high reducing power is stored in the bathtub 1.

  For this reason, by entering the bathtub 1 of the bathing facility 10 described above, for example, the fat in the skin through the action of eliminating hydrogen to the active oxygen due to the characteristics of hydrogen, the characteristics of the redox potential having a high reducing action, and the characteristics of alkalinity. Can prevent oxidative deterioration of That is, by dissolving a sufficient concentration of hydrogen to obtain a high reducing power, it works to eliminate active oxygen, protects against oxidative alteration in the skin, suppresses the formation of lipid droplets and suppresses fat mass be able to. In addition, the characteristics of hydrogen, the characteristics of redox potential with high reducing action and the characteristics of alkalinity can activate the skin to prevent oxidative deterioration of fat in the skin and inhibit the formation of fat mass and Can be burned.

  Another embodiment of the electrolyzed water generating means will be described with reference to FIGS.

  FIG. 8 is a cross-sectional plan view illustrating another example of the electrolyzed water generating means, which corresponds to FIG. For this reason, the same members as those shown in FIG. FIGS. 9 and 10 show the changes over time in the redox potential and pH.

  As shown in FIG. 8, in the electrolyzed water generating means 23 of the present embodiment example, a columnar spacer 25 is disposed on the inner periphery of the positive electrode 15, and between the spacer 25 and the inner peripheral surface of the positive electrode 15. A passage 26 having a slight gap (for example, 1 mm) is formed. The hot water led to the inner peripheral side of the positive electrode 15 is sent to the passage 26 so as to be immersed in the cation exchange membrane 13 in close contact with the positive electrode 15 from the positive electrode 15 side. Based on Faraday's law, the amount of acidic ion water is reduced, and the pH of the alkaline ion water generated at the negative electrode 16 is controlled to a neutral region.

  The state of the reducing power of the hot water circulated will be described based on FIGS.

  Hydrogen ion index (pH) and redox potential when the amount of hot water in the bathtub 1 is 165 liters, the temperature is 42 ° C., the electrolysis current of the electrolyzed water generating means 3 is 7 A, and the circulating water amount is 10.5 liters per minute. (ORP: The larger the value on the negative side, the stronger the reducing power and the more the oxidation is suppressed).

  As shown in FIGS. 9 and 10, the pH at the beginning of the circulation (circle mark in FIG. 9; the same applies hereinafter) is 7.1, and the ORP (Δ mark in FIG. 9; the same applies hereinafter) is 547 mV. After 5 minutes from the start of circulation, pH becomes 7.3, ORP becomes 36 mV, after 10 minutes, pH becomes 7.6, ORP becomes -72 mV, and after 15 minutes, The pH is 7.7 and the ORP is -178 mV. After 20 minutes, the pH is 7.8 and ORP is -278 mV, after 25 minutes, the pH is 7.8, ORP is -324 mV, and after 30 minutes, The pH is 7.8 and the ORP is -341 mV.

  From the above results, when 15 minutes have passed since the circulation was started, the ORP was sufficiently lowered (−150 mV or less) while the pH was controlled in the neutral region, and hot water having a reducing power was stored in the bathtub 1. When 30 minutes have elapsed since the start of circulation, it can be seen that hot water having a high reducing power is stored in the bathtub 1 in a state where the acidic ion water is reduced.

  The bathing equipment described above can circulate the hydrogen-containing electrolyzed water between the bathtub 1 and the electrolyzed water generating means 3, so that the hydrogen-containing electrolyzed water that maintains the reducing power can be used as hot water for the bath 1. For this reason, it becomes possible to use the hydrogen containing electrolyzed water which maintained the reducing power for bathing.

  A bathing facility according to a second embodiment of the present invention will be described with reference to FIGS.

  FIG. 11 shows a schematic system of bathing equipment according to the second embodiment of the present invention, FIG. 12 shows a schematic system inside the water supply means, and FIGS. 13 and 14 show changes in oxidation-reduction potential and pH with time. The situation is shown. The same members as those shown in FIGS. 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 11, the bathing facility 70 includes an electrolyzed water generating means 3 (see FIGS. 2 and 3) in an electric water heater 61 of a natural refrigerant heat pump water heater (Ecocute: registered trademark). Hot water (dropping of hot water) is performed in the bathtub 1 from the electric water heater 61 through the electrolyzed water generating means 3, and hot water stored in the bathtub 1 is circulated between the electrolyzed water generating means 3. The electric water heater 61 is provided with a water supply port 62 through which tap water or the like is supplied, and a heating refrigerant is circulated between a heat pump unit (not shown) and the electric water heater 61.

  The electric water heater 61 will be specifically described based on FIG.

  As shown in FIG. 12, the electric water heater 61 is provided with a hot water storage tank 63, and the hot water storage tank 63 is connected with a water supply path 64 from a water supply port 62. The hot water storage tank 63 is connected to a refrigerant path 65 through which a heating refrigerant is circulated. Hot water in the hot water storage tank 63 heated by the heating refrigerant is sent from the hot water supply path 66 to the hot water supply port 67.

  A hot water supply three-way valve 69 is provided in the middle of the hot water supply path 66, and a water supply path 64 from the water supply port 62 is connected to the hot water supply three way valve 69. By adjusting the open / close state of the hot water supply three-way valve 69, the hot water from the hot water storage tank 63 is mixed with the water supplied from the water supply path 64, and hot water having a desired temperature is supplied from the hot water supply port 67.

  A hot water storage path 71 (hot water supply path) is provided branching off from the hot water supply path 66, and the hot water storage path 71 is connected to the intake path 6 on the upstream side of the electrolyzed water generating means 3. A hot water storage three-way valve 72 as a switching means is provided in the middle of the hot water storage passage 71, and a water supply passage 64 from a water supply port 62 is connected to the hot water storage three-way valve 72.

  By adjusting the open / close state of the hot water storage three-way valve 72, the hot water from the hot water storage tank 63 is mixed with the water supplied from the water supply path 64, becomes hot water having a desired temperature, is sent to the electrolyzed water generating means 3, and is sent to the bathtub 1. The hot water is dropped (filled with water) (indicated by a white arrow in the figure). Further, by driving the circulation pump 8 with the flow path to the hot water storage path 71 side of the hot water storage three-way valve 72 closed, the hot water in the bathtub 1 is sent from the intake path 6 to the electrolyzed water generating means 3, and the alkali It is returned to the bathtub 1 from the inflow channel 7 as hot water of ionic water (indicated by a thick black arrow in the figure).

  On the other hand, a heat exchanger 75 is provided in the intake path 6 on the upstream side of the connecting portion of the hot water storage path 71, and the heat exchanger 75 includes a reheating cooking path 76 through which hot water from the hot water storage tank 63 is sent as a heat medium. It has been. The hot water from the hot water storage tank 63 sent from the cooking path 76 and the hot water (circulating fluid) circulating in the intake path 6 are heat-exchanged, and the hot water in the intake path 6 is maintained at a predetermined temperature (followed up). The

  In the electric water heater 61 provided with the electrolyzed water generating means 3, hot water from the hot water storage tank 63 is sent to the electrolyzed water generating means 3 with the flow path to the hot water storage path 71 side of the hot water storage three-way valve 72 opened to generate electrolyzed water. Hot water electrolyzed by the means 3 is supplied to the bathtub 1 and hot water filling (dropping) is carried out (indicated by white arrows in the figure). When a predetermined amount of hot water is supplied to the bathtub 1, the hot water is circulated between the bathtub 1 and the electrolyzed water generating means 3 by closing the flow path of the hot water storage three-way valve 72 toward the hot water storage path 71 (see FIG. The electrolysis of the hot water in the bathtub 1 is carried out.

  Based on FIG. 13, FIG. 14, the state of the reducing power at the time of circulating after hot water filling in the bathing facility mentioned above is demonstrated.

  Hydrogen ion index (pH) and redox potential when the amount of hot water in the bathtub 1 is 165 liters, the temperature is 42 ° C., the electrolysis current of the electrolyzed water generating means 3 is 7 A, and the circulating water amount is 10.5 liters per minute. The situation of (ORP) will be described.

  As shown in FIGS. 13 and 14, the hot water electrolyzed by the electrolyzed water generating means 3 is supplied to the bathtub 1 to fill the hot water, and the pH when the water is full (O mark in FIG. 13; the same applies hereinafter). 7.5, and ORP (Δ mark in FIG. 13; the same applies hereinafter) is −103 mV. Circulation is started after the water is full. After 5 minutes from the start, pH becomes 8.2, ORP becomes -273 mV, and after 10 minutes, pH becomes 8.4 and ORP becomes- After 15 minutes, the pH is 8.6 and the ORP is -371 mV. After 20 minutes, the pH is 8.7 and ORP is -391 mV. After 25 minutes, the pH is 8.7, ORP is -417 mV, and after 30 minutes, The pH is 8.7 and the ORP is -421 mV.

  From the above results, immediately after the hot water filling is finished and the circulation is started, the ORP is sufficiently lowered (−150 mV or less) while the pH is controlled in the neutral region, and the hot water having a reducing power is supplied to the bathtub 1. Stored. And even if 30 minutes pass since the circulation start, it turns out that the hot water which has a high reducing power is maintained by the bathtub 1. FIG.

  In the bathing facility 70 described above, the condition of the reducing power of hot water when the electric water heater 61 is provided with the electrolyzed water generating means 23 (see FIG. 8) instead of the electrolyzed water generating means 3 (see FIGS. 2 and 3). This will be described with reference to FIGS. 15 and 16. That is, the state of the reducing power when the electrolyzed water generating means 23 in which the cylindrical spacer 25 is arranged on the inner periphery of the positive electrode 15 is circulated after hot water filling in the bathing facility provided in the electric water heater 61 will be described. .

  Hydrogen ion index (pH) and redox potential when the amount of hot water in the bathtub 1 is 165 liters, the temperature is 42 ° C., the electrolysis current of the electrolyzed water generating means 3 is 7 A, and the circulating water amount is 10.5 liters per minute. The situation of (ORP) will be described.

  As shown in FIGS. 15 and 16, the hot water electrolyzed by the electrolyzed water generating means 23 is supplied to the bathtub 1 to fill the hot water, and the pH when the water is full (marked in FIG. 15: the same applies hereinafter). 7.1, and ORP (Δ mark in FIG. 15; the same applies hereinafter) is −79 mV. Circulation is started after the water is full. After 5 minutes from the start, the pH is 7.1, the ORP is -210 mV, and after 10 minutes, the pH is 7.3, and the ORP is- 259 mV, and after 15 minutes, the pH is 7.3 and the ORP is -298 mV. After 20 minutes, the pH is 7.3 and the ORP is −325 mV. After 25 minutes, the pH is 7.3 and the ORP is −362 mV. After 30 minutes, The pH is 7.3 and the ORP is -390 mV.

  From the above results, immediately after the hot water filling is completed, the ORP is sufficiently lowered (−150 mV or less) while the pH is controlled in a neutral region, and hot water having a reducing power is stored in the bathtub 1. And it turns out that the hot water which has high reducing power in the state which reduced acidic ion water (in the state which is not discharged | emitted) is maintained by the bathtub 1 even if 30 minutes pass from a circulation start.

  The bathing facility 70 described above can drop the hydrogen-containing electrolyzed water having reducing power into the bathtub 1 by filling the hot water in the hot water storage tank 63 through the electrolyzed water generating means 3 (23) and filling the hot water. And the hydrogen containing electrolyzed water in which the reducing power is maintained can be used as the hot water of the bath 1 by circulating the hydrogen containing electrolyzed water between the bathtub 1 and the electrolyzed water generating means 3 (23). For this reason, it becomes possible to use the hydrogen containing electrolyzed water which maintained the reducing power for bathing in a short time.

  Another embodiment of the electrolyzed water generating means will be described based on FIG.

  FIG. 17 is a cross-sectional view illustrating another example of the electrolyzed water generating means, which corresponds to FIG. That is, the illustrated electrolyzed water generating means 81 is obtained by changing a part of the configuration of the electrolyzed water generating means 3 shown in FIG. For this reason, the same members as those shown in FIG.

  Further, FIGS. 18 to 20 show the redox potential, pH, and hydrogen gas particle size over time, and FIG. 21 shows the distribution of hydrogen gas particle size after 30 minutes from the start of electrolysis.

  As shown in FIG. 17, a tube of a neutral membrane 82 is fitted around the positive electrode 15 as an ion exchange membrane through which water particles pass along with ions, and a cylindrical medium is formed on the outer periphery of the cylindrical positive electrode 15. The adhesive film 82 is in close contact. The negative electrode 16 is arranged concentrically with a gap on the outer peripheral side of the positive electrode 15 with the neutral film 82 in close contact with the outer peripheral portion, and a path 21 is formed between the neutral film 82 and the negative electrode 16. Yes.

A discharge port 34 provided on the upper base 32 of the upper socket 38 communicates with the inside of the cylinder of the positive electrode 15, and oxygen gas (O ₂ gas) generated in the electrolyzed water inside the positive electrode 15 is communicated with the discharge port 34. A degassing valve 83 is provided as a degassing means for degassing the gas. That is, a degassing means for degassing O ₂ gas generated in the electrolyzed water is provided in the flow path inside the positive electrode 15.

Hot water supplied from the raw water inlet 19 of the electrolytic cell 4 through the inlet 6 is guided to the inside of the lower socket 35, and is a path formed inside the positive electrode 15 and between the neutral film 82 and the negative electrode 16. 21. A predetermined voltage is applied between the positive electrode 15 and the negative electrode 16, and hot water flowing from the raw water inlet 19 is ionized into hydrogen ions H ⁺ and hydroxide ions OH ⁻ .

In other words, on the positive electrode 15 side,
H ₂ O → 1/2 · O ₂ + 2H ⁺ + 2e ⁻
Reaction occurs,
On the negative electrode 16 side,
2H ⁺ + 2e ⁻ → H ₂
Reaction occurs,
Overall,
H ₂ O → 1/2 · O ₂ + H ₂
Reaction occurs.

The ionized hydrogen ions H ⁺ pass through the neutral film 82 and collect in the cathode-side path 21, and hydrogen gas bubbles are generated in the negative electrode 16, and hot 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. Further, the anolyte containing H ⁺ on the positive electrode 15 side passes through the neutral film 82 and is guided to the path 21 on the cathode side. O ₂ gas generated inside the positive electrode 15 is collected by the deaeration valve 83 and deaerated. That is, no acid wastewater is generated.

  Hydrogen gas bubbles are allowed to pass through the path 21 to the opposite side (outer peripheral side) of the negative electrode 16 to cause the hydrogen gas to flow out along with the water flow, and the hydrogen gas bubbles are separated from the negative electrode 16 in a small state. Alkaline ion water in which hydrogen gas is dissolved is circulated from the discharge port 33 to the bathtub 1 (see FIG. 1) through the inflow path 7.

  Based on FIGS. 18-21, the state of the reducing power of hot water when the electrolyzed water generating means 81 described above is applied to the bathing facility 10 shown in FIG. 1 will be described.

  Hydrogen ion index (pH) and redox potential when the amount of hot water in the bathtub 1 is 165 liters, the temperature is 42 ° C., the electrolysis current of the electrolyzed water generating means 81 is 7 A, and the circulating water amount is 15.5 liters per minute. (ORP: The larger the value on the negative side, the stronger the reducing power and the more the oxidation is suppressed).

  As shown in FIGS. 18 and 19, the pH at the initial stage of circulation (circles in FIG. 18: the same applies hereinafter) is 7.09, and ORP (Δ marks in FIG. 18: the same applies hereinafter) is 320 mV. After 5 minutes from the start of circulation, the pH is 7.22, ORP is -61 mV, after 10 minutes, the pH is 7.34, ORP is -227 mV, and after 15 minutes, , The pH is 7.49 and the ORP is -485 mV. After 20 minutes, the pH is 7.66, ORP is -508 mV, after 25 minutes, the pH is 7.87, ORP is -513 mV, and after 30 minutes, The pH is 8.07 and the ORP is -507 mV.

  As shown in FIG. 19 and FIG. 21, the average distribution of the particle size of hydrogen gas after 15 minutes from the start of circulation is about 75 nm, and as shown in FIG. The average distribution is about 157 nm.

  Moreover, as shown in FIGS. 18 and 20, the pH immediately after the electrolysis stop is 8.07, and the ORP is −507 mV. After 5 minutes from the circulation stop, pH becomes 8.05, ORP becomes -520 mV, after 10 minutes, pH becomes 7.89, ORP becomes -530 mV, and after 15 minutes, , The pH is 7.84, the ORP is −495 mV, and after 20 minutes, the pH is 7.83 and the ORP is −480 mV.

  In addition, as shown in FIG. 20, the average distribution of the hydrogen gas particle size after 5 minutes from the electrolysis stop is about 185 nm, and the average distribution of the hydrogen gas particle size after 20 minutes is about 181 nm. Yes.

  From the above results, without any acidic drainage, the pH value became high after starting circulation, and ORP decreased sufficiently (-150 mV or less) after 10 minutes from the start of circulation. The hot water having a high reducing power is stored in the bathtub 1 by dissolving the bubbles of hydrogen gas in a sufficiently small state after 15 minutes have passed since the start of circulation. Recognize. Further, it can be seen that even after the electrolysis is stopped, the pH value is maintained and the ORP is sufficiently lowered.

  In addition, as a result of conducting the same verification with the electrolysis current of 5A and 3A, hot water having sufficient reducing power is stored in the bathtub 1, and after the electrolysis is stopped, the pH value is maintained and the ORP is sufficiently reduced. It has been confirmed that this condition is maintained. It has been confirmed that when the electrolysis current is lowered, the pH can be maintained substantially constant in a region close to neutrality (close to 7).

  The present invention can be used in the industrial field of bathing equipment using hydrogen-containing electrolyzed water.

DESCRIPTION OF SYMBOLS 1 Bathtub 2 Circulation path 3, 23, 81 Electrolyzed water production | generation means 4 Electrolyzer 5 Filter 6 Intake path 11 Discharge path 13 Cation exchange membrane 15 Positive electrode 16 Negative electrode 17 Upper spacer 18 Lower spacer 19 Raw water inlet 20 Flow path 21 Route (inflow side)
22 route (outflow side)
31 Lower base 32 Upper base 33 Discharge port 34 Discharge port 35 Lower socket 38 Upper socket 41 Base 42 Inlet port 43 Outlet port 45 Positive electrode rod 46, 56 Flange portion 55 Negative electrode rod 61 Electric water heater 62 Water supply port 63 Hot water storage tank 64 Water supply path 65 Refrigerant path 66 Hot water supply path 67 Hot water supply port 71 Hot water storage path 72 Hot water storage three-way valve 75 Heat exchanger 82 Neutral membrane 83 Deaeration valve

Claims (9)

Electrolyzed water generation means for obtaining hydrogen-containing electrolyzed water by electrolysis provided with an ion exchange membrane in an electrolytic cell sandwiched between a pair of electrodes of an anode and a cathode;
A bathtub where hot water for bathing can be stored;
And a circulation path for sending the hot water stored in the bathtub to the electrolyzed water generating means and circulating the hydrogen-containing electrolyzed water generated by the electrolyzed water generating means to the bathtub as a circulating fluid. Facility. The bathing facility according to claim 1,
The electrolyzed water generating means is provided in a hot water supply path of hot water supply means for supplying hot water to the bathtub,
A bathing facility comprising switching means for switching between the circulation path and the hot water supply path. The bathing facility according to claim 2,
The hot water supply means includes a hot water storage tank for storing hot water obtained by a heat pump,
The bathing facility, wherein the hot water stored in the hot water storage tank is sent from the hot water supply path to the bathtub. The bathing facility according to claim 3,
A bathing facility comprising: a heat exchanger that uses hot water from the hot water storage tank as a heat medium to raise the temperature of the circulating fluid in the circulation path. In the bathing facility according to any one of claims 1 to 4,
The electrolyzed water generating means includes
The electrode on the cathode side and the electrode on the anode side are each formed in a mesh shape,
Provided with a flow passage for circulating a circulating fluid in the cathode side passage,
The ion exchange membrane is a cation exchange membrane and is in close contact with the electrode on the anode side and is opposed to the flow path. The bathing facility according to claim 5,
The electrolyzed water generating means includes
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 passage is between the anode-side electrode and the cathode-side electrode as an inflow side of the circulating fluid, and the outside of the cathode-side electrode is an outflow side of the circulating fluid so that it contains hydrogen. Bathing facilities characterized by the flow of electrolyzed water. The bathing facility according to claim 6,
An anode side flow path is provided on the inner peripheral side of the electrode on the anode side,
A bathing facility, wherein the anode-side flow path is provided with a regulating member that regulates an inflow amount of the circulating fluid into the anode-side flow path. In the bathing facility according to any one of claims 1 to 4,
The electrolyzed water generating means includes
The ion exchange membrane is a neutral membrane that passes water particles with ions;
The electrode on the anode side is cylindrical and the cylindrical neutral film is closely attached to the outer periphery,
The electrode on the cylindrical cathode side is arranged on the outer periphery of the electrode on the anode side to which the neutral film is adhered,
Between the electrode on the anode side and the electrode on the cathode side is the inflow side of the circulating fluid, and the outside of the electrode on the cathode side is the outflow side of the circulating fluid, and hydrogen-containing electrolyzed water flows out,
A bathing facility comprising degassing means for degassing oxygen gas generated in electrolyzed water inside the electrode on the anode side in a flow path inside the electrode on the anode side. The bathing facility according to claim 8,
A bathing facility characterized in that the electrode on the cathode side and the electrode on the anode side are each formed in a mesh shape.

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