US20150292091A1 - Apparatus for Supplying High-Concentration Hydrogen Gas for Living Organism - Google Patents

Apparatus for Supplying High-Concentration Hydrogen Gas for Living Organism Download PDF

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US20150292091A1
US20150292091A1 US14/438,061 US201314438061A US2015292091A1 US 20150292091 A1 US20150292091 A1 US 20150292091A1 US 201314438061 A US201314438061 A US 201314438061A US 2015292091 A1 US2015292091 A1 US 2015292091A1
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hydrogen gas
gas
electrolytic chamber
living organism
cathode
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Fumitake Satoh
Ryousuke Kurokawa
Bunpei Satoh
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Miz Co Ltd
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Miz Co Ltd
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Assigned to MIZ CO., LTD. reassignment MIZ CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KUROKAWA, RYOUSUKE, SATOH, BUNPEI, SATOH, FUMITAKE
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    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C25B1/08—
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B15/00—Operating or servicing cells
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • C25B9/08—
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
    • C25B9/19—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof with diaphragms
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
    • C25B9/70—Assemblies comprising two or more cells
    • C25B9/73—Assemblies comprising two or more cells of the filter-press type
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M2202/00—Special media to be introduced, removed or treated
    • A61M2202/02—Gases
    • A61M2202/0208—Oxygen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Definitions

  • the present invention relates to an apparatus for supplying high-concentration hydrogen gas for a living organism.
  • Patent Document 1 An apparatus for supplying hydrogen gas for a living organism configured such that an air mixer is attached to a part of a conduit pipe from a hydrogen gas generator to a nasal cavity cannula and the concentration of hydrogen gas for supply can be arbitrarily set.
  • Problems to be solved by the present invention include providing an apparatus for supplying high-concentration hydrogen gas for a living organism by which hydrogen gas having health benefits can be used safely in medical practice or at home.
  • the present invention solves the above problems through providing an apparatus for supplying high-concentration hydrogen gas for a living organism.
  • the apparatus is configured to dilute hydrogen gas, which is generated in an electrolytic chamber or in a side chamber via electrolysis, in the vicinity of a cathode or a cathode water surface using a diluent gas supplier, or to discharge a part of the generated hydrogen gas outside the chambers and dilute hydrogen gas in the chambers using a diluent gas supplier or a suction pump.
  • the apparatus can thereby maintain the hydrogen gas concentration at lower than 18.3 vol %, which is the lower limit of detonation, in all the course from a time when the hydrogen gas is generated to a time when the hydrogen gas is supplied to a living organism.
  • hydrogen gas having health benefits can be used safely in medical practice or at home.
  • FIG. 1 is a diagram illustrating an apparatus for supplying hydrogen gas for a living organism according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating an apparatus for supplying hydrogen gas for a living organism according to another embodiment of the present invention.
  • FIG. 3 is a diagram illustrating an apparatus for supplying hydrogen gas for a living organism according to yet another embodiment of the present invention.
  • FIG. 4 is a diagram illustrating an apparatus for supplying hydrogen gas for a living organism according to a further embodiment of the present invention.
  • FIG. 5 is a diagram illustrating an apparatus for supplying hydrogen gas for a living organism according to a still further embodiment of the present invention.
  • FIG. 6 is a diagram illustrating an apparatus for supplying hydrogen gas for a living organism according to a yet further embodiment of the present invention.
  • the apparatus for supplying hydrogen gas for a living organism is an apparatus that supplies hydrogen gas to a living organism mainly for the purpose of health maintenance and/or functional maintenance of living organisms (including cells and organs), disease improvement and/or functional improvement, or health check and/or functional measurement.
  • Examples of supply way for hydrogen gas may include, but are not limited to, supply by way of inhalation from the nasal cavity and/or mouth cavity; supply by way of exposure of and/or blowing to the skin or organ; supply by way of exposure of and/or blowing to a living organism applicable liquid, such as liquid drug and organ storage liquid, which is assumed to be applied to a living organism; and supply by way of diffusion from the outside of a container or circuit which is provided with a living organism.
  • the subject raw water is electrolyzed to generate hydrogen gas at the cathode side.
  • the hydrogen gas generated at the cathode side via electrolysis transfers to a gas phase portion in the electrolytic chamber or the side chamber.
  • the hydrogen concentration in the gas phase portion increases as time passes and will exceed 18.3 vol %, which is the lower limit of detonation of hydrogen gas.
  • a hydrogen gas concentration area of a high concentration will be formed, even in a local manner, at a spot either in the vicinity of the cathode or in the vicinity of the cathode water surface.
  • the hydrogen gas concentration at the point at which hydrogen of the highest concentration is generated i.e., the hydrogen concentration in the vicinity of the cathode or the cathode water surface during electrolysis, may preferably be maintained at lower than 18.3 vol %, more preferably lower than 15.0 vol %, and further preferably lower than 4.7 vol %.
  • Modes for carrying out the present invention may be classified mainly into the following two types in view of the positional relationship between the electrolytic chamber and the electrode plates. That is, the two types are as follows:
  • an apparatus 1 for supplying high-concentration hydrogen gas for a living organism includes an electrolytic cell 6 that has: an electrolytic chamber 3 to which subject raw water 2 is introduced; and at least a pair of electrode plates 4 and 5 included inside the electrolytic chamber 3 .
  • the electrode plates 4 and 5 are provided to be separated from each other via a distance using one or more spacers 15 or other appropriate structure.
  • the apparatus 1 further includes a direct-current power source 14 that applies a direct-current voltage to the electrode plates 4 and 5 in the electrolytic cell 6 .
  • the apparatus 1 may have a feature that a part or whole of a gas phase portion 7 in the electrolytic chamber 3 is covered with a hydrogen gas permeable membrane 8 .
  • the apparatus 1 may have a feature of having an opening part 9 .
  • the apparatus 1 may have both of the features. According to the above feature or features, hydrogen gas in the gas phase portion 7 in the electrolytic chamber 3 is partially discharged outside the electrolytic chamber 3 via the hydrogen gas permeable membrane 8 or the opening part 9 . Through this operation, the present invention is carried out as the apparatus 1 in which the hydrogen gas concentration in the gas phase portion 7 in the electrolytic chamber 3 can be maintained at lower than 18.3 vol % and the hydrogen gas concentration in the vicinity of the above of the hydrogen gas permeable membrane 8 or the opening part 9 can be maintained at lower than 15.0 vol %.
  • an apparatus 1 for supplying high-concentration hydrogen gas for a living organism is configured such that the apparatus 1 as described in Embodiment 1 further includes at least one of a diluent gas supplier 10 or a suction pump 11 for diluting the hydrogen gas generated in the gas phase portion 7 in the electrolytic chamber 3 and for serving an appropriate flow volume of the hydrogen gas to an living organism.
  • the hydrogen gas is mixed with a diluent gas supplied from the diluent gas supplier 10 or with a diluent gas suctioned by the suction pump 11 from outside the gas phase portion 7 of the electrolytic chamber 3 via the hydrogen gas permeable membrane 8 or the opening part 9 .
  • the present invention is carried out as the apparatus 1 by which a living organism can be supplied with a mixed gas 12 that includes the hydrogen gas and the diluent gas and has a hydrogen concentration of lower than 15.0 vol %.
  • An apparatus 1 for supplying high-concentration hydrogen gas for a living organism includes an electrolytic cell 6 that has: an electrolytic chamber 3 to which subject raw water 2 is introduced; and at least a pair of electrode plates 4 and 5 included inside the electrolytic chamber 3 .
  • the electrode plates 4 and 5 are provided to be separated from each other via a distance.
  • the apparatus 1 further includes a direct-current power source 14 that applies a direct-current voltage to the electrode plates 4 and 5 in the electrolytic cell 6 .
  • the apparatus 1 is provided with a diluent gas supplier 10 for diluting the hydrogen gas generated from the electrode plate 4 or 5 that is to be a cathode, so that the diluent gas supplied from the diluent gas supplier 10 is blown to the vicinity of the electrode plate 4 or 5 .
  • the present invention is carried out as the apparatus 1 in which the hydrogen gas concentration in the vicinity of the electrode plate 4 or 5 can be constantly maintained at lower than 18.3 vol % during electrolysis thereby to allow a living organism to be supplied with a mixed gas 12 that includes the hydrogen gas and the diluent gas and has a hydrogen concentration of lower than the lower limit of detonation.
  • the electrolytic cell 6 examples include an electrolytic cell as described in U.S. Pat. No. 3,349,710, etc, for example.
  • the electrolytic cell 6 has at least one membrane 13 that partitions the inside and the outside of the electrolytic chamber 3 and at least a pair of electrode plates 4 and 5 provided respectively in the inside and the outside of the electrolytic chamber 3 so as to sandwich the membrane 13 .
  • the electrode plate 5 located outside the electrolytic chamber 3 is provided to be in contact with the membrane 13 .
  • FIG. 3 to FIG. 6 each exemplify an apparatus 1 for supplying high-concentration hydrogen gas for a living organism as an embodiment according to the present invention.
  • the membrane 13 partitions the inside of the electrolytic cell 6 to form the electrolytic chamber 3 and the side chamber 16 which is located outside the electrolytic chamber 3 and also in an aspect that one of the pair of the electrode plates 4 and 5 is provided inside the electrolytic chamber 3 while the other electrode plate is provided outside the electrolytic chamber 3 (i.e., in the side chamber 16 ) so as to be in contact with the membrane 13 .
  • the electrode plate 4 provided in the electrolytic chamber 3 to which the subject raw water 2 is introduced is used as the cathode while the electrode plate 5 provided in the side chamber 16 adjacent to the electrolytic chamber 3 via the membrane 13 is used as the anode. Therefore, hydrogen gas is generated in the electrolytic chamber 3 , and the gas phase portion 7 in which the hydrogen gas gathers is formed also in the electrolytic chamber 3 .
  • the electrode plate 5 provided in the electrolytic chamber 3 to which the subject raw water 2 is introduced is used as the anode while the electrode plate 4 provided in the side chamber 16 adjacent to the electrolytic chamber 3 via the membrane 13 is used as the cathode. Therefore, hydrogen gas is generated in the side chamber 16 , and the gas phase portion 7 in which the hydrogen gas gathers is formed also in the side chamber 16 .
  • an apparatus 1 for supplying high-concentration hydrogen gas for a living organism comprises: an electrolytic cell 6 ; a direct-current power source 14 that applies a direct-current voltage to a pair of electrode plates 4 and 5 ; and a suction pump 11 that constitutes a diluent gas supply means for supplying a diluent gas for diluting hydrogen gas generated from an electrode plate of the pair of electrode plates 4 and 5 that is to be the cathode.
  • the electrolytic cell 6 has: an electrolytic chamber 3 to which subject raw water 2 is introduced; a membrane 13 that partitions inside and outside of the electrolytic chamber 3 ; and the pair of electrode plates 4 and 5 provided respectively in the inside and the outside of the electrolytic chamber 3 so as to sandwich the membrane 13 .
  • Both of the electrode plate 4 located inside the electrolytic chamber 3 and the electrode plate 5 located outside the electrolytic chamber 3 are provided to be in contact with the membrane 13 .
  • one membrane 13 and one pair of electrode plates 4 and 5 are provided, but a plurality of membranes 13 and/or a plurality of pairs of electrode plates 4 and 5 may be provided.
  • the electrode plate 4 located inside the electrolytic chamber 3 may not necessarily be provided to be in contact with the membrane 13 as long as at least the electrode plate 5 located outside the electrolytic chamber 3 is provided to be in contact with the membrane 13 .
  • the electrode plate 4 in the electrolytic chamber 3 to which the subject raw water is introduced is used as the cathode. Therefore, when the electrolysis of the subject raw water is performed, hydrogen gas is generated in the electrolytic chamber 3 , and the generated hydrogen gas gathers in a gas phase portion 7 located at the upper part of the electrolytic chamber 3 .
  • the electrolytic cell 6 is a cylindrical container-like member having an upper opening and a bottom, and a hydrogen gas permeable membrane 8 is provided over the upper opening. That is, the hydrogen gas permeable membrane 8 is provided so as to cover at least a part of the gas phase portion 7 formed in the electrolytic chamber 3 .
  • the hydrogen gas permeable membrane 8 extends to the outside of the electrolytic chamber 3 , i.e., to the upper face of the side chamber 16 , but it may be sufficient if the apparatus 1 for supplying high-concentration hydrogen gas according to the present invention covers at least a part of the gas phase portion 7 formed in the electrolytic chamber 3 .
  • One or more opening parts 9 are formed in the hydrogen gas permeable membrane 8 which covers the gas phase portion 7 of the electrolytic chamber 3 , so that gas can flow in from or flow out to the outside of the electrolytic cell 6 .
  • the opening part or parts 9 may be omitted.
  • a conduit pipe 12 is provided at a wall surface of the electrolytic cell 6 that corresponds to the gas phase portion 7 formed in the electrolytic chamber 3 .
  • the conduit pipe 12 introduces the hydrogen gas gathered in the gas phase portion 7 to a targeted site (such as a living organism).
  • the conduit pipe 12 is provided with a suction pump 11 . By operating this suction pump 11 , gas pressure in the gas phase portion 7 is reduced, so that the outer air is introduced into the gas phase portion 7 via the hydrogen gas permeable membrane 8 and the opening part 9 . The outer air dilutes the hydrogen gas in the gas phase portion 7 , and the diluted hydrogen gas is then introduced to the targeted site via the conduit pipe 12 .
  • the operating condition of the suction pump 11 and the gas permeation property of the hydrogen gas permeable membrane 8 are set such that the hydrogen gas concentration in the gas phase portion 7 in the electrolytic chamber 3 is maintained at lower than 18.3 vol % and the hydrogen gas concentration in the vicinity of the above the hydrogen gas permeable membrane 8 or the opening part 9 is maintained at lower than 15.0 vol %.
  • FIG. 4 illustrates an apparatus 1 for supplying high-concentration hydrogen gas for a living organism according to an embodiment of the present invention.
  • This apparatus 1 has a different configuration of the diluent gas supply means from that in the apparatus 1 according to Embodiment 6 illustrated in FIG. 3 , and other configurations are the same. That is, as illustrated in FIG. 4 , conduit pipes 12 and 16 are provided at a wall surface of the electrolytic cell 6 that corresponds to the gas phase portion 7 formed in the electrolytic chamber 3 .
  • the conduit pipe 12 introduces the hydrogen gas gathered in the gas phase portion 7 to a targeted site (such as a living organism).
  • the conduit pipe 16 is to forcibly supply the outer air into the gas phase portion 7 .
  • This conduit pipe 16 is provided with a diluent gas supplier 10 .
  • the diluent gas supplier 10 is to suction the outer air, such as environmental air, and introduces the outer air into the gas phase portion 7 via the conduit pipe 16 .
  • gas pressure in the gas phase portion 7 increases, so that a part of the hydrogen gas in the gas phase portion 7 is discharged outside via the hydrogen gas permeable membrane 8 and the opening part 9 . This allows the hydrogen gas to be diluted by the outer air in the gas phase portion 7 , and the diluted hydrogen gas is then introduced to the targeted site via the conduit pipe 12 .
  • the operating condition of the diluent gas supplier 10 and the gas permeation property of the hydrogen gas permeable membrane 8 are set such that the hydrogen gas concentration in the gas phase portion 7 in the electrolytic chamber 3 is maintained at lower than 18.3 vol % and the hydrogen gas concentration in the vicinity of the above of the hydrogen gas permeable membrane 8 or the opening part 9 is maintained at lower than 15.0 vol %.
  • an apparatus 1 for supplying high-concentration hydrogen gas for a living organism comprises: an electrolytic cell 6 ; a direct-current power source 14 that applies a direct-current voltage to a pair of electrode plates 4 and 5 ; and a suction pump 11 that constitutes a diluent gas supply means for supplying a diluent gas for diluting hydrogen gas generated from an electrode plate of the pair of electrode plates 4 and 5 that is to be the cathode.
  • the electrolytic cell 6 has: an electrolytic chamber 3 to which subject raw water 2 is introduced; a membrane 13 that partitions inside and outside of the electrolytic chamber 3 ; and the pair of electrode plates 4 and 5 provided respectively in the outside and the inside of the electrolytic chamber 3 so as to sandwich the membrane 13 .
  • Both of the electrode plate 5 located inside the electrolytic chamber 3 and the electrode plate 4 located outside the electrolytic chamber 3 are provided to be in contact with the membrane 13 .
  • one membrane 13 and one pair of electrode plates 4 and 5 are provided, but a plurality of membranes 13 and/or a plurality of pairs of electrode plates 4 and 5 may be provided.
  • the electrode plate (cathode plate) 4 as shown in FIGS. 3-6 , may not necessarily be provided to be in contact with the membrane 13 as long as at least the electrode plate (anode plate) 5 is provided to be in contact with the membrane 13 .
  • the electrode plate 4 in the side chamber 16 is used as the cathode. Therefore, when the electrolysis of the subject raw water introduced in the electrolytic chamber 3 is performed, hydrogen gas is generated in the side chamber 16 , and the generated hydrogen gas gathers in a gas phase portion 7 in the side chamber 16 .
  • the electrolytic cell 6 is a cylindrical container-like member having an upper opening and a bottom, and a hydrogen gas permeable membrane 8 is provided over the upper opening. That is, the hydrogen gas permeable membrane 8 is provided so as to cover at least a part of the gas phase portion 7 formed in the side chamber 16 .
  • the hydrogen gas permeable membrane 8 extends to the outside of the side chamber 16 , i.e., to the upper face of the electrolytic chamber 3 , but it may be sufficient if the apparatus 1 for supplying high-concentration hydrogen gas according to the present invention covers at least a part of the gas phase portion 7 formed in the side chamber 16 .
  • One or more opening parts 9 are formed in the hydrogen gas permeable membrane 8 which covers the gas phase portion 7 of the side chamber 16 , so that gas can flow in from or flow out to the outside of the electrolytic cell 6 . In view of preventing foreign substances from mixing into the generated hydrogen gas or other purposes, the opening part or parts 9 may be omitted.
  • a conduit pipe 12 is provided at a wall surface of the electrolytic cell 6 that corresponds to the gas phase portion 7 formed in the side chamber 16 .
  • the conduit pipe 12 introduces the hydrogen gas gathered in the gas phase portion 7 to a targeted site (such as a living organism).
  • the conduit pipe 12 is provided with a suction pump 11 . By operating this suction pump 11 , gas pressure in the gas phase portion 7 is reduced, so that the outer air is introduced into the gas phase portion 7 via the hydrogen gas permeable membrane 8 and the opening part 9 . The outer air dilutes the hydrogen gas in the gas phase portion 7 , and the diluted hydrogen gas is then introduced to the targeted site via the conduit pipe 12 .
  • the operating condition of the suction pump 11 and the gas permeation property of the hydrogen gas permeable membrane 8 are set such that the hydrogen gas concentration in the gas phase portion 7 in the side chamber 16 is maintained at lower than 18.3 vol % and the hydrogen gas concentration in the vicinity of the above of the hydrogen gas permeable membrane 8 or the opening part 9 is maintained at lower than 15.0 vol %.
  • FIG. 6 illustrates an apparatus 1 for supplying high-concentration hydrogen gas for a living organism according to an embodiment of the present invention.
  • This apparatus 1 has a different configuration of the diluent gas supply means from that in the apparatus 1 according to Embodiment 8 illustrated in FIG. 5 , and other configurations are the same. That is, as illustrated in FIG. 6 , conduit pipes 12 and 16 are provided at a wall surface of the electrolytic cell 6 that corresponds to the gas phase portion 7 formed in the side chamber 16 .
  • the conduit pipe 12 introduces the hydrogen gas gathered in the gas phase portion 7 to a targeted site (such as a living organism).
  • the conduit pipe 16 is to forcibly supply the outer air into the gas phase portion 7 .
  • This conduit pipe 16 is provided with a diluent gas supplier 10 .
  • the diluent gas supplier 10 is to suction the outer air, such as environmental air, and introduces the outer air into the gas phase portion 7 via the conduit pipe 16 .
  • gas pressure in the gas phase portion 7 increases, so that a part of the hydrogen gas in the gas phase portion 7 is discharged outside via the hydrogen gas permeable membrane 8 and the opening part 9 . This allows the hydrogen gas to be diluted by the outer air in the gas phase portion 7 , and the diluted hydrogen gas is then introduced to the targeted site via the conduit pipe 12 .
  • the operating condition of the diluent gas supplier 10 and the gas permeation property of the hydrogen gas permeable membrane 8 are set such that the hydrogen gas concentration in the gas phase portion 7 in the side chamber 16 is maintained at lower than 18.3 vol % and the hydrogen gas concentration in the vicinity of the above of the hydrogen gas permeable membrane 8 or the opening part 9 is maintained at lower than 15.0 vol %.
  • the subject raw water as used herein is water that can generate hydrogen gas at the cathode through a process of electrolysis of the water, and examples thereof include tap water, clean water, purified water, ion-exchanged water, RO water, distilled water, and the like.
  • the subject raw water may appropriately contain electrolytes, such as calcium ion and magnesium ion.
  • a water-soluble compound to pure water, such as ion-exchanged water and purified water, which does not contain solute ion, to prepare the subject raw water.
  • chlorine gas is known to be basically not beneficial for a living organism. It is therefore preferred that the subject raw water to be used in the present invention is subjected to a removal treatment for chlorine gas.
  • the chlorine gas concentration in the mixed gas comprising the hydrogen gas and the diluent gas may preferably 1 ppm or less, more preferably 0.5 ppm or less, and further preferably 0.1 ppm or less.
  • the present invention is carried out as the “mode in which at least a pair of electrode plates is included inside the electrolytic chamber and shares the gas phase portion (the above of one electrode plate and the above of the other electrode plate are continuous),” which assumes that the hydrogen gas generated at the cathode is mixed with the gas generated at the anode.
  • Examples of the electrode plates to be used include, but are not limited to, those using titanium plates as base materials which are coated with a noble metal selected from the group of platinum, iridium, palladium and the like.
  • a cation exchange membrane is employed as the membrane used in the mode in which the membrane partitions the inside and the outside of the electrolytic chamber, and one of (at least) a pair of electrode plates is provided inside the electrolytic chamber while the other electrode plate is provided outside to be in contact with the membrane.
  • an all fluorine-based sulfonic acid membrane that comprises a sulfonic group as the electrolyte group.
  • a membrane of Nafion registered trademark, a DuPont product
  • a membrane of Flemion registered trademark, available from ASAHI GLASS CO., LTD.
  • a membrane of Aciplex registered trademark, available from Asahi Kasei Corporation
  • the electrode plate located inside the electrolytic chamber may be provided to be in contact with the membrane, or may also be provided to leave a small space from the membrane.
  • the gas phase portion refers to a concept including a space that is not filled with the subject raw water in the electrolytic chamber or in the side chamber. That is, the gas phase portion refers to a concept including a space that is not filled with the subject raw water at least in the chamber having the electrode plate to be the cathode, i.e., in the electrolytic chamber and/or in the side chamber.
  • an apparatus for supplying high-concentration hydrogen gas for a living organism which can be used safely through an appropriate method of diluting such hydrogen gas staying in the gas phase portion.
  • examples of such a method of dilution include the followings:
  • a method which has at least one of a feature of covering a part or whole of the gas phase portion in the electrolytic chamber or in the side chamber with the hydrogen gas permeable membrane and a feature of providing the opening part, and in which the hydrogen gas is diluted by suctioning gas (such as air) as the diluent gas from the outside of the electrolytic chamber or the side chamber to the inside of the electrolytic chamber or the side chamber using a suction (vacuum) pump; and
  • suctioning gas such as air
  • a method which has at least one of a feature of covering a part or whole of the gas phase portion in the electrolytic chamber or in the side chamber with the hydrogen gas permeable membrane and a feature of providing the opening part, and in which the hydrogen gas is diluted by discharging a part of the hydrogen gas in the electrolytic chamber or in the side chamber outside the electrolytic chamber and blowing the diluent gas to the hydrogen gas using a diluent gas supplier.
  • the side chamber can be understood as being functionally the same as the electrolytic chamber. Therefore, unless the both chambers are separately described or illustrated, the term “electrolytic chamber” may include the meaning of the side chamber.
  • Examples of the diluent gas supplier as used herein include an apparatus, such as an air pump, which can blow the diluent gas.
  • the suction (vacuum) pump refers to a concept including a so-called vacuum pump, and is an apparatus that can dilute the hydrogen gas in the electrolytic chamber while suctioning gas (such as air) as the diluent gas from the outside of the electrolytic chamber or the side chamber to the inside of the electrolytic chamber or the side chamber.
  • the diluent gas refers to a concept that includes normal air and artificial air, and examples thereof include medical gas of which the oxygen concentration is adjusted and other medical gases which contain medical components such as anesthetic component.
  • the hydrogen gas permeable membrane may preferably be, but is not limited to, a gas membrane, such as a nonwoven fabric, which is poorly-permeable or non-permeable for water but permeable for hydrogen gas.
  • the vicinity of the cathode or the vicinity of the cathode water surface refers to a concept that includes a position separated by 7 cm, preferably 5 cm, more preferably 3 cm, and most preferably 1 cm, from the cathode (or the cathode water surface).
  • the hydrogen gas concentration in the vicinity of the above of the hydrogen gas permeable membrane or the opening part of the electrolytic chamber may be maintained preferably at lower than 15.0 vol %, more preferably at lower than 10.0 vol %, and further preferably at lower than 3.0 vol %.
  • the vicinity of the above of the hydrogen gas permeable membrane or the opening part of the electrolytic chamber or the side chamber refers to a concept that includes a position separated by 7 cm and preferably 3 cm from the hydrogen gas permeable membrane or the opening part, and most preferably a position in contact with the above of the hydrogen gas permeable membrane or the opening part.
  • the hydrogen gas concentration can be understood to increase as the measurement point comes close to the generation source of hydrogen gas. Therefore, if the measurement at the above position is difficult due to the size of the apparatus for supplying high-concentration hydrogen gas for a living organism or other reason, the measurement may be performed at a closer range than the above position but at a position as close as possible to the above position.
  • the hydrogen gas concentration in the vicinity of the cathode or the cathode water surface is measured at each of a time when 1 minute has elapsed after starting the electrolysis, a time when half an estimated electrolysis time has passed and a time when the electrolysis has been completed, and when the hydrogen gas concentration is lower than 18.3 vol % at each of the times, it is deemed that “the hydrogen gas concentration in the vicinity of the cathode or the cathode water surface is constantly maintained at lower than 18.3 vol % during electrolysis.”
  • the present invention is an invention that relates consistently to an apparatus for supplying high-concentration hydrogen gas for a living organism. Therefore, even though the hydrogen gas concentration is to be maintained lower than 18.3 vol %, the dilution may not have to be needed beyond necessity. It is thus preferred that, unlike the handling of hydrogen gas in other industrial fields, the present invention is associated with management of the electrolytic condition and/or management of the flow volume rather than aiming to reduce the hydrogen gas concentration close to zero without limit so that the generated hydrogen gas can be safely discarded outside the system.
  • the diluent gas is blown at a flow volume of 1 mL/min or more, preferably 1 L/min or more, more preferably 2 L/min or more, further preferably 4 L/min or more, and particularly preferably 6 L/min or more, for example.
  • the hydrogen gas concentration in the mixed gas comprising the hydrogen gas and the diluent gas is 0.01 vol % or more, preferably 0.1 vol % or more, and more preferably 1.0 vol % or more.
  • Examples of a form to supply the mixed gas to a living organism include a form to inhale the mixed gas by moving the face directly to the vicinity of the cathode or cathode water surface or to the cathode chamber and a form to inhale the mixed gas from a mixed gas outlet provided at the electrolytic chamber or at the side chamber.
  • an attachment such as a nasal cavity cannula may be appropriately connected to the mixed gas outlet thereby to enhance the convenience at the time of supply to a living organism and/or the stability of supply of the mixed gas.
  • An electrolytic cell has been prepared to be characterized by having: an electrolytic chamber to which subject raw water is introduced; the above cation exchange membrane that partitions inside and outside of the electrolytic chamber; and a pair of platinum electrodes provided in the inside and the outside of the electrolytic chamber so as to sandwich the cation exchange membrane, wherein: the electrode plate located outside the electrolytic chamber is provided to be in contact with the cation exchange membrane; the electrode plate located inside the electrolytic chamber is also provided to be in contact with the cation exchange membrane; and the electrode plate located outside the electrolytic chamber is surrounded by a side chamber.
  • the electrolytic chamber was filled with 1.4 L of Fujisawa city tap water, and electrolysis was performed with an electrolytic current of 30 A by applying a direct-current voltage from a direct-current power source to both of the electrodes using the electrode plate provided inside the electrolytic chamber as the anode while using the electrode plate provided outside the electrolytic chamber and inside the side chamber as the cathode.
  • a suction pump vacuum pump, DAP-6D, available from ULVAC KIKO, Inc.
  • the hydrogen gas concentration in the side chamber and the electrolytic voltage were measured at a time when 1 minute elapsed after the start of electrolysis, at a time when 5 minutes elapsed after the start of electrolysis, and at a time when the electrolysis was completed (when 10 minutes elapsed after the start of electrolysis). Results thereof are listed in Table 1.
  • Example 1 Without blowing normal air in Example 1, the hydrogen gas concentration in the side chamber and the electrolytic voltage were measured at a time when 10 seconds elapsed after the start of electrolysis and a time when 50 seconds elapsed after the start of electrolysis. Results thereof are also listed in Table 1 (the measurement interval was changed because the hydrogen concentration increased rapidly after the start of measurement).

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  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
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JP2012263155A JP5502973B1 (ja) 2012-11-30 2012-11-30 生体用高濃度水素ガス供給装置
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US20160263341A1 (en) * 2015-03-09 2016-09-15 Hsin-Yung Lin Gas generator
US20180320275A1 (en) * 2015-12-22 2018-11-08 Hsin Yung Lin Gas generator
US20190062933A1 (en) * 2017-08-25 2019-02-28 Hsin-Yung Lin Water electrolysis device
US20200171265A1 (en) * 2017-09-27 2020-06-04 Panasonic Intellectual Property Management Co., Ltd. Hydrogen supply apparatus and hydrogen supply system
US20240009419A1 (en) * 2021-03-24 2024-01-11 Miz Company Limited Gas supply apparatus and gas supply method

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US20180320275A1 (en) * 2015-12-22 2018-11-08 Hsin Yung Lin Gas generator
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