JP2010029841A - Method for producing hydrogenated water - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for easily producing hydrogenated water of a desired oxidation-reduction potential using a hydrogenated water producing apparatus having enhanced operability by adopting a downsized configuration of the apparatus. <P>SOLUTION: The method for producing the hydrogenated water uses the hydrogenated water producing apparatus 1 comprising a hydrogenated water producing section 5 which continuously produces the hydrogenated water including minute hydrogen bubbles by first generating a mixed fluid of raw water and hydrogen gas via an ejector effect and next making the mixed fluid flow through a porous element. The hydrogenated water producing section 5 is supplied with raw water for the hydrogenated water supplied from a raw water supply source out of the apparatus 1 and hydrogen gas generated by one or more hydrogen gas generators 2 generating the hydrogen gas via electrolysis of raw water for the hydrogen gas. Comparing the flow volume of the hydrogen gas and that of the raw water, the flow volume of the hydrogen gas is regulated to the prescribed value according to the raw water whose flow volume is regulated to the prescribed value in advance so that the oxidation-reduction potential of the hydrogenated water produced in the hydrogenated water producing section 5 is within a prescribed range. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a technique of a method for producing hydrogenated water, and more specifically, generates a mixed fluid in which hydrogen gas is mixed with raw water by an ejector effect, and passes the mixed fluid through a porous element to generate hydrogen. The present invention relates to a method for producing hydrogenated water using a hydrogenated water production apparatus comprising a hydrogenated water production unit that continuously produces hydrogenated water containing fine gas bubbles.

  In recent years, a method for obtaining hydrogenated water by mixing hydrogen gas into raw water (water) is known as a method for reforming water. The hydrogenated water thus obtained has a very low oxidation-reduction potential of, for example, −100 mV or less, although the pH is close to 9.0 or less, and its utilization method as reducing water. Is attracting attention in various fields.

  By the way, the oxidation-reduction reaction of the human in vivo reaction is usually in the range of −100 mV to −400 mV, and it is said that active oxygen tends to stay when the oxidation-reduction potential of the body fluid increases. In recent years, the influence of active oxygen has been suggested on many diseases such as cancer, diabetes, arteriosclerosis, gastritis, atopic dermatitis, brain dysfunction, and the cause of aging. Thus, in daily life, what kind of water is ingested or contacted has a significant effect on health and beauty.

  Usually, tap water in Japan (13.0 ° C) has a redox potential of +400 to +800 mV, a pH of 7.0 to 7.5, and a dissolved oxygen content of about 10.0 ppm, with a large amount of dissolved oxygen. Furthermore, since the redox potential is positive, there is no reducing power even though there is oxidizing power. Therefore, ingestion of such tap water or the like is not balanced with the oxidation-reduction reaction in the human living body, and the active oxygen is easily generated in the living body. On the other hand, since hydrogenated water has a low oxidation-reduction potential, by taking such hydrogenated water, the effect of eliminating the above-described active oxygen due to its reducibility is expected.

  Certainly, focusing only on the redox potential of water, some natural waters such as groundwater that have natural redox potential are lower than tap water and have negative redox potential. However, the oxidation-reduction potential may vary depending on the place of water intake, or the oxidation-reduction potential may change over time, making it difficult to stably supply such water.

  From the above viewpoint, a method for stably supplying reducing water having a low oxidation-reduction potential has been proposed so far. By supplying hydrogen gas to the raw water, the raw water is oxidized and reduced. The structure of the manufacturing apparatus which manufactures the reducing water (hydrogenated water) which maintained the electric potential in the low electric potential is proposed (for example, refer patent documents 1-4).

In particular, Patent Document 3 discloses a hydrogenated water production apparatus that continuously produces hydrogenated water by mixing raw material water with hydrogen gas using an ejector.
Patent Document 4 discloses such a value while measuring the oxidation-reduction potential of the produced hydrogenated water in order to obtain the hydrogenated water whose oxidation-reduction potential is stably adjusted to -600 mV to -400 mV. Raw material water and hydrogen to a hydrogen supply module as a hydrogenated water production unit for producing hydrogenated water by mixing hydrogen gas with raw material water so as to have a predetermined oxidation-reduction potential (-600 mV to -400 mV) The structure of the manufacturing apparatus of the hydrogenated water provided with the controller which controls the supply amount (flow rate) of gas is disclosed.

  However, in the conventional hydrogenated water production apparatus disclosed in Patent Documents 1 to 4 described above, the apparatus configuration is increased in size and the hydrogen gas cylinder is mainly connected to a hydrogen gas cylinder as a hydrogen gas supply source. The safety of the product and the handleability during replacement were poor. Therefore, the conventional hydrogenated water production apparatus cannot be easily introduced into general facilities and homes, and it has been difficult to widely spread.

  In order to obtain a popular hydrogenated water production apparatus, it is preferable to replace the conventional hydrogen gas cylinder with an apparatus configuration including a hydrogen gas supply source with excellent handleability. As a supply source of hydrogen gas, specifically, a configuration of a hydrogen gas generator that generates hydrogen gas by electrolyzing raw water for hydrogen gas is known. When such a hydrogen gas generator is provided in place of the gas cylinder, it is necessary to supply the hydrogen gas with a predetermined pressure and flow rate, and the adjustment of the redox potential of the hydrogenated water can be easily adjusted. There was a problem that it was not possible.

  From the viewpoint of controlling the flow rates of raw water and hydrogen gas, the method for producing hydrogenated water disclosed in Patent Document 4 described above certainly controls the flow rates of raw water and hydrogen gas to the hydrogen supply module. Hydrogenated water adjusted to a predetermined oxidation-reduction potential can be produced, but the hydrogen gas supply source is not mentioned other than the hydrogen gas cylinder, and the hydrogen gas generator as described above is provided. The specific problems of the configuration still remain.

  In particular, as disclosed in Patent Document 3 described above, a hydrogenated water production apparatus including a hydrogenated water production unit that continuously produces hydrogenated water by mixing hydrogen gas into raw water using an ejector is used. In the conventional manufacturing method, in order to allow the mixed fluid to pass through the porous element while exhibiting the ejector effect, it is necessary to supply raw water at a predetermined flow rate to the hydrogenated water production unit. In order to continuously produce hydrogenated water having a predetermined range of oxidation-reduction potential (especially -400 mV to -680 mV) in the production department, hydrogen gas relative to the raw water (flow rate) supplied to the hydrogenated water production department The flow rate is particularly important.

  However, the invention disclosed in the cited document 4 described above is for producing hydrogen water having a predetermined oxidation-reduction potential, a flow meter for measuring the flow rate of deaerated water (raw water), and hydrogen supply The hydrogen amount control valve for controlling the amount of hydrogen gas supplied to the module is used to control the hydrogen amount control valve according to the measured value of the oxidation-reduction potential of the hydrogen water to be produced. The amount of gas is not controlled according to the flow rate of deaerated water measured by a flow meter, that is, the flow rate of hydrogen gas supplied to the closed vessel is adjusted according to the flow rate of the liquid medium (raw water) is not.

JP 2005-13833 A Japanese Patent No. 4000568 Japanese Patent No. 3984279 JP 2005-218885 A

  Therefore, the present invention relates to a method for producing hydrogenated water, which solves the above-described conventional problems, and aims to use a device for producing hydrogenated water having a reduced apparatus configuration and improved handling. An object of the present invention is to provide a method for easily producing hydrogenated water having a redox potential.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

  That is, in claim 1, hydrogen gas containing fine bubbles of hydrogen gas is generated by generating a mixed fluid in which hydrogen gas is mixed with raw water by the ejector effect, and passing the mixed fluid through the porous element. A method for producing hydrogenated water using an apparatus for producing hydrogenated water comprising a hydrogenated water producing unit that continuously produces hydrogenated water, wherein raw water for hydrogen gas is electrically supplied to the hydrogenated water producing unit. Hydrogen gas generated in one or a plurality of hydrogen gas generators that decompose to generate hydrogen gas and raw water for hydrogenated water supplied from a raw water supply source outside the machine are supplied, By comparing the flow rate with the raw material water flow rate, the hydrogenated water produced in the hydrogenated water production unit has a predetermined range of redox potential so that the hydrogenated water produced in the hydrogenated water production unit has a predetermined flow rate. The hydrogen gas is adjusted to a predetermined flow rate.

  According to a second aspect of the present invention, the hydrogenated water production apparatus is supplied to a hydrogen gas flow rate detection sensor for detecting a flow rate of hydrogen gas supplied to the hydrogenated water production unit, and to the hydrogenated water production unit. A flow rate adjusting valve that adjusts the flow rate of hydrogen gas and a flow rate detection sensor for raw material water that detects the flow rate of the raw material water supplied to the hydrogenated water production unit are detected by the hydrogen gas flow rate detection sensor. The hydrogenated water produced by the hydrogenated water production unit has a redox potential within a predetermined range by comparing the flow rate of the hydrogen gas and the flow rate of the raw material water detected by the raw material water flow rate detection sensor. As described above, the hydrogen gas is adjusted to a predetermined flow rate by controlling the flow rate adjusting valve with respect to the raw material water that has been adjusted to a predetermined flow rate in advance.

  According to a third aspect of the present invention, the hydrogen gas generated in the hydrogen gas generator is adjusted to a predetermined value set in advance, and then finely adjusted based on the flow rate of the raw material water. It is supplied to the hydrogen water production department.

  According to a fourth aspect of the present invention, the hydrogen gas generator has a proton exchange membrane type electrolytic cell.

  According to a fifth aspect of the present invention, the hydrogen gas generation unit is connected to a raw water tank in which raw water for hydrogen gas is stored via a circulation path.

  As an effect of the present invention, since a hydrogen gas generation unit that electrolyzes raw water to generate hydrogen gas is provided, the device configuration can be reduced in size compared to a device configuration using a conventional hydrogen gas cylinder, Moreover, the handleability can be improved. In particular, by adjusting the flow rate of the hydrogen gas supplied to the hydrogenated water production unit utilizing the ejector effect based on the flow rate of the raw material water, it is possible to easily produce the hydrogenated water having the target oxidation-reduction potential. it can.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic systematic diagram which showed the whole structure of the manufacturing apparatus of the hydrogenated water which concerns on one Example of this invention. Sectional drawing which showed the structure of the cell main body of a hydrogen gas generation part. Sectional drawing which showed the structure of the pipe body of a hydrogenated water manufacturing part.

  In the following embodiments, in the hydrogenated water production apparatus 1, the hydrogenated water produced is discharged with the raw water and hydrogen gas supplied to the hydrogenated water production unit 5 upstream. The side is the downstream side (see the arrow in FIG. 1).

First, the configuration of the hydrogenated water production apparatus 1 of the present embodiment will be described in detail below.
As shown in FIG. 1, the hydrogenated water production apparatus 1 according to the present embodiment is an apparatus that continuously produces hydrogenated water having a predetermined oxidation-reduction potential (in particular, −400 mV to −680 mV). Specifically, one or a plurality of hydrogen gas generation units 2 that electrolyze the raw water for hydrogen gas to generate hydrogen gas, and the hydrogen gas from the hydrogen gas generation unit 2 is supplied to the hydrogenated water production unit 5. A hydrogen gas supply path 3 is connected to a raw material water supply source (a tap faucet) outside the apparatus, and a raw water supply path 4 for supplying raw water for hydrogenated water to the hydrogenated water production unit 5 and hydrogen for the raw water It is comprised with the hydrogenated water manufacturing part 5 etc. which mix gas and manufacture hydrogenated water continuously.

  In the hydrogenated water production apparatus 1 of the present embodiment, the hydrogen gas from the hydrogen gas generation unit 2 is supplied to the hydrogenated water production unit 5 through the hydrogen gas supply path 3 and the raw water is supplied to the raw water supply path. 4 is supplied to the hydrogenated water production unit 5, and hydrogen gas is mixed with the raw water in the hydrogenated water production unit 5 (the pipe body 50 or the like), whereby predetermined hydrogenated water is produced. .

  “Hydrogenated water” in this example contains a large amount of hydrogen, has an oxidation-reduction potential of −400 mV to −680 mV, and is maintained approximately neutral (pH is slightly higher than 7). Say. In particular, the hydrogenated water of the present embodiment contains a large amount of fine bubbles of hydrogen gas having a wide range of diameters, such as millibubbles, microbubbles, and micronanobubbles, by the hydrogenated water production unit 5 described later.

  As shown in FIGS. 1 and 2, the hydrogen gas generation unit 2 is configured as a hydrogen supply source to a hydrogenated water production unit 5 to be described later, and in this embodiment, a known solid polymer electrolytic cell is used. Is configured. Specifically, the electrolytic cell configured in the hydrogen gas generation unit 2 includes a cell body 20 having an anode part 21 having a positive electrode, a cathode part 22 having a negative electrode, an anode part 21 and a cathode part 22. A fixed electrolyte membrane 23 and the like to be separated are provided. The cell body 20 is supplied with a raw water inlet 20a to which raw water for hydrogen gas is supplied, a hydrogen gas outlet 20b to which hydrogen gas generated by being connected to the hydrogen gas supply passage 3 is discharged, and raw water. It is formed by the raw material water outlet 20c to be discharged.

  As the solid electrolyte membrane 23, for example, a conductive substance in which a polymer main chain such as polyfluorocarbon is substituted with a side chain such as a sulfone group or a carboxylic acid group is used. The solid electrolyte membrane 23 is configured as an electrode membrane composite in which platinum is attached to both surfaces and the anode portion 21 and the cathode portion 22 are integrally attached to the surface of the platinum membrane. As described above, the hydrogen gas generation unit 2 is formed with a proton exchange membrane type electrolytic cell in which the solid electrolyte membrane 23 and the like are configured as an electrode membrane composite, and does not use a chemical solution (electrolytic solution) such as alkali. Therefore, it is configured to be safe and easy to maintain.

  An outline of the mechanism of hydrogen gas generation in the hydrogen gas generation unit 2 is as follows. First, raw material water is supplied to the cell main body 20 and a predetermined voltage is applied between the anode unit 21 and the cathode unit 22. Thus, water molecules emit electrons to the electrode, generating oxygen molecules and hydrogen ions. Since this reaction occurs at the interface between the anode portion 21 and the solid electrolyte membrane 23, the generated oxygen is released to the outside of the anode portion 21 through a minute gap in the plated anode portion 21. On the other hand, the generated hydrogen ions pass through the solid electrolyte membrane 23 and move to the surface of the cathode portion 22, and transfer of electrons to the hydrogen ions occurs at the cathode portion 22, thereby generating hydrogen gas. It is.

  The hydrogen gas generated at the cathode portion 22 is discharged toward the downstream side of the hydrogen gas supply path 3 through the hydrogen gas outlet 20b. The raw water supplied to the cell main body 20 is discharged out of the cell main body 20 through the raw water outlet 20c together with oxygen gas as a by-product, and through a circulation path 25 (discharge path 25b) described later. After being separated from the gas and liquid, it is returned to the raw material water tank 24.

  As shown in FIG. 1, the hydrogen gas generation unit 2 of this embodiment is connected to a raw water tank 24 in which raw water for hydrogen gas is stored, and the raw water tank 24 and the cell body 20 are connected to each other. In the meantime, a circulation path 25 is configured in which the raw water from the raw water tank 24 is supplied to the cell main body 20 and the raw water from the cell main body 20 is returned to the raw water tank 24.

  The raw water tank 24 is configured to be replaceable with respect to the apparatus main body of the hydrogenated water production apparatus 1, and pure water such as ion exchange water is mainly stored as raw water. Further, a pump device 24a is connected to the raw water tank 24, and the raw water for the hydrogen gas in the raw water tank 24 is pumped through the supply passage 25a of the circulation passage 25 by this pump device 24a. It is supplied to the cell body 20 of the generator 2.

  The circulation path 25 includes a supply path 25 a that connects the raw material water inlet 20 a of the cell body 20 of the hydrogen gas generator 2 and the raw water tank 24, and a discharge path that connects the raw water outlet 20 c of the cell body 20 and the raw water tank 24. 25b. The raw water in the raw water tank 24 is supplied to the raw water inlet 20a of the cell body 20 through the supply path 25a, while the raw water containing oxygen gas, hydrogen gas, etc. from the cell body 20 is discharged. It is discharged toward the raw material water tank 24 through the passage 25b.

  In the circulation path 25, a check valve 25c is disposed in the middle of the supply path 25a, and a drain valve 26 is disposed downstream of the check valve 25c. When raw water more than a necessary amount is supplied from the raw water tank 24 to the hydrogen gas generator 2, the raw water is discharged out of the apparatus through the drain valve 26. Further, a gas-liquid separator 25d is disposed in the middle of the discharge path 25b, and the raw water discharged from the cell body 20 is separated from a gas component (oxygen gas or the like) by the gas-liquid separator 25d. Later, it is returned to the raw water tank 24.

  The hydrogen gas generator 2 is connected to a pressure adjustment path 27 connected to the cell body 20, and the pressure inside the cell body 20 is set to a predetermined value by a relief valve 27 a provided in the pressure adjustment path 27. It is adjusted so that it does not become more. That is, when the pressure in the cell main body 20 becomes a predetermined value or more, the relief valve 27a is opened, and the gas (hydrogen gas or the like) in the cell main body 20 goes out of the apparatus (in the atmosphere) via the pressure adjustment path 27. And released.

  In addition, since the hydrogenated water production apparatus 1 of the present embodiment includes one or a plurality of hydrogen gas generation units 2 as will be described later, the cell main body 20, the raw water tank 24, and the circulation path 25 described above. Are also provided in the same number according to the number of corresponding hydrogen gas generation units 2.

  As shown in FIG. 1, the hydrogen gas supply path 3 is configured as a path for supplying the hydrogen gas from the hydrogen gas generation section 2 to the hydrogenated water production section 5. In this embodiment, the hydrogen gas generation section 2 and the hydrogenated water production unit 5, and a plurality of upstream supply paths 31 having an upstream end connected to the hydrogen gas generation unit 2 and a downstream end connected to the junction 30. And a downstream supply path 32 having an upstream end connected to the junction 30 and a downstream end connected to the hydrogenated water production unit 5.

  In particular, in the hydrogenated water production apparatus 1 of the present embodiment, a plurality (four in this embodiment) of hydrogen gas supply units 10, 10... Each including the hydrogen gas generation section 2 and the upstream supply path 31. Is configured. That is, in the hydrogenated water production apparatus 1, since a plurality of upstream supply paths 31 can be connected to the merge section 30, each supply unit 10 is connected to the merge section 30 via the upstream supply path 31. Thus, the hydrogen gas from each supply unit 10 (the hydrogen gas generation unit 2 thereof) is configured to be merged at the merge unit 30.

  In the following embodiment, one upstream supply path 31 connected to the merge unit 30 will be described, but the configuration of the other upstream supply paths 31 is the same.

  The merging unit 30 is configured using a known merging valve, connection valve, or the like, and a plurality (four) of upstream supply paths 31 and one downstream supply path 32 are connected to the merging section 30. . In addition, a relief valve 30a is connected to the merging portion 30, and when the pressure of the hydrogen gas pumped through the merging portion 30 exceeds a predetermined value, the relief valve 30a is opened, Hydrogen gas is released out of the aircraft (in the atmosphere).

  The upstream supply path 31 has an upstream end connected to the hydrogen gas outlet 20 b of the cell body 20 (of the hydrogen gas generation unit 2) and a downstream end connected to the junction 30. In the upstream supply path 31 of the present embodiment, the hydrogen gas purifier 33, the first pressure adjustment unit 34, the throttle valve 35, the check valve 36, and the like are sequentially arranged from the upstream side (side closer to the hydrogen gas generation unit 2). Are arranged respectively.

  The hydrogen gas purifier 33 is an apparatus for filtering and drying impurities such as moisture in the hydrogen gas in order to increase the purity of the hydrogen gas generated by the hydrogen gas generator 2. As the hydrogen gas purifier 33 of the present embodiment, a purifier using a palladium thin film (hydrogen separation membrane) is preferably used in addition to a tube filled with silica gel or the like as a desiccant. Further, the hydrogen gas purifier 33 is disposed so as to be replaceable with respect to the apparatus main body of the hydrogenated water production apparatus 1. However, when the hydrogen gas purifier 33 made of a palladium thin film is used, handling is good because the frequency of replacement / maintenance is less than when a desiccant is used.

  As the palladium thin film used in the hydrogen gas purifier 33, a thin film is formed by rolling a heat-resistant porous material by electroless plating or by rolling palladium or a palladium alloy containing palladium as a main component. A thing etc. are used. By configuring the hydrogen gas purifier 33 using the palladium thin film in this way, the hydrogen gas purifier 33 can be configured in a compact manner, and the hydrogen gas refining accuracy is dramatically improved by the hydrogen gas permeation ability of the palladium thin film. To a high-purity gas (purity 99.99999% or more).

  The first pressure adjusting unit 34 adjusts the pressure of the hydrogen gas delivered from the hydrogen gas generating unit 2 so that the pressure is individually set to a predetermined value, specifically, the upstream supply path A pressure converter 34a for converting the pressure of the hydrogen gas in 31 into an electric signal, a pressure gauge 34b for outputting and displaying an electric signal from the pressure converter 34a, and a hydrogen gas pumped downstream of the upstream supply path 31 It consists of a solenoid valve 34c and the like for adjusting the pressure.

  In the first pressure adjusting unit 34, the pressure of the hydrogen gas pumped through the upstream supply path 31 is measured by the pressure converter 34a and the pressure gauge 34b, and the electromagnetic valve 34c is controlled to open and close based on the measured pressure. Thus, the pressure of the hydrogen gas sent out from the hydrogen gas generation unit 2 is adjusted to be a predetermined value set in advance. Therefore, in the upstream supply path 31, the pressure of the hydrogen gas pumped toward the downstream side is adjusted by the first pressure adjusting unit 34 to a predetermined value. In other words, in the hydrogen gas supply path 3, the hydrogen gas delivered from the hydrogen gas generation unit 2 is adjusted to a predetermined value by the first pressure adjustment unit 34, and then to the downstream side (merging unit 30). It is pumped.

  The predetermined value of the pressure of the hydrogen gas adjusted by the first pressure adjusting unit 34 is, for example, the amount of hydrogen gas generated by the hydrogen gas generating unit 2, the amount of hydrogen gas supplied to the merging unit 30, It sets suitably according to the manufacturing conditions etc. for manufacturing hydrogenated water of the amount of dissolved hydrogen.

  The throttle valve 35 is configured as a flow rate adjustment valve that adjusts the flow rate of the hydrogen gas that reaches the merging unit 30 in the upstream supply path 31, and is disposed between the merging unit 30 and the first pressure adjusting unit 34. ing. In other words, the throttle valve 35 finely adjusts the flow rate of the hydrogen gas that is sent from the hydrogen gas generator 2 and reaches the junction 30. Further, the check valve 36 is disposed at the most downstream side in the upstream supply path 31, and air is prevented from flowing into the upstream supply path 31 from the junction 30.

  Thus, in the hydrogen gas supply path 3 of the present embodiment, the upstream side supply path 31 is provided with the hydrogen gas purifier 33, the first pressure adjustment unit 34, the throttle valve 35, and the check valve 36, respectively. A hydrogen gas supply unit 10 is configured, and the supply unit 10 is connected to the merging section 30 via the upstream supply path 31, so that the hydrogen gas generation section connected to the upstream end of the upstream supply path 31. 2 is pumped to the junction 30 after the pressure and flow rate are adjusted by the first pressure adjusting section 34 and the throttle valve 35 of the upstream supply path 31. Therefore, the pressure and flow rate of the hydrogen gas supplied to the hydrogenated water production unit 5 after merging are adjusted by adjusting the pressure and flow rate of the hydrogen gas generated in the hydrogen gas generating unit 2 and then pumping it to the merging unit 30. It can be easily fine-tuned.

  On the other hand, the downstream supply path 32 has an upstream end connected to the merging unit 30 and a downstream end connected to a hydrogen gas supply port 50b of the pipe body 50 (of the hydrogenated water production unit 5) described later. In the downstream supply path 32 of the present embodiment, a second pressure adjustment unit 37, a flow rate adjustment unit 38, a check valve 39, and the like are arranged in order from the upstream side (side closer to the merging unit 30). .

  As the second pressure adjusting unit 37, a regulator 37 a that adjusts the pressure of the hydrogen gas supplied from the merging unit 30 to the hydrogenated water producing unit 5 to be a predetermined value set in advance is disposed. The regulator 37a is a diaphragm type that adjusts the secondary pressure by balancing the primary pressure (upstream pressure of the downstream supply path 32) and the secondary pressure (downstream pressure of the downstream supply path 32). Or a piston-type general-purpose regulator. The regulator 37a adjusts the hydrogen gas from the hydrogen gas generation unit 2 supplied to the merging unit 30 via the upstream supply path 31 so that the pressure becomes a predetermined value set in advance. It is supplied to the manufacturing unit 5.

  The predetermined value of the pressure of the hydrogen gas adjusted by the second pressure adjusting unit 37 is, for example, the amount of hydrogen gas generated by the hydrogen gas generating unit 2, the amount of hydrogen gas supplied from the merging unit 30, It is set as appropriate according to the production conditions for producing the hydrogenated water having the target dissolved hydrogen content.

  The flow rate adjustment unit 38 adjusts the flow rate of the hydrogen gas supplied to the hydrogenated water production unit 5 based on the flow rate of the raw material water supplied from the raw material water supply path 4 to be described later. Includes a gas flow meter 38a as a hydrogen gas flow rate detection sensor for detecting the flow rate of hydrogen gas in the downstream supply path 32, and the flow rate of hydrogen gas fed to the downstream side of the downstream supply path 32, that is, the addition It is comprised with the solenoid valve 38b etc. as a flow volume adjustment valve which adjusts the flow volume of the hydrogen gas supplied to the hydrogen water manufacturing part 5. FIG.

  The solenoid valve 38b is configured as a solenoid valve type flow rate adjustment valve. In the flow rate adjustment unit 38, the flow rate of hydrogen gas supplied to the hydrogenated water production unit 5 is controlled by opening and closing the solenoid valve 38b. It adjusts based on the flow volume of the raw material water supplied from the raw material water supply path 4. Specifically, the solenoid valve 38b compares the flow rate of hydrogen gas detected by the gas flow meter 38a with the flow rate of raw material water detected by a flow switch 40 provided in the raw material water supply path 4 described later. The flow rate of the hydrogen gas supplied to the hydrogenated water production unit 5 is adjusted. Thus, the hydrogen gas from the hydrogen gas generation unit 2 supplied to the merge unit 30 via the upstream supply path 31 is supplied to the hydrogenated water production unit 5 after the flow rate is adjusted by the electromagnetic valve 38b. .

  The check valve 39 is disposed on the most downstream side of the downstream supply path 32 and at the connection end with the hydrogenated water production unit 5. Hydrogen gas from the body 50 is prevented from flowing back into the downstream supply path 32.

  As shown in FIG. 1, the raw material water supply path 4 has an upstream end connected to a water tap (not shown) as a raw material water supply source outside the machine via a connecting hose and the like, and a downstream end to hydrogenation. The raw water for hydrogenated water, which is connected to the water production unit 5 and pumped from the water tap, is supplied to the hydrogenated water production unit 5 through the raw water supply channel 4. In the raw water supply path 4, a flow switch 40 is disposed as a raw water flow detection sensor that detects the flow of raw water supplied to the hydrogenated water production unit 5.

  In the flow switch 40, the flow rate of the raw material water sent from the raw material water supply path 4 to the hydrogenated water production unit 5 is detected. In the present embodiment, since the raw water supply path 4 is connected to the water tap as a raw water supply source, the flow rate of the raw water fed through the raw water supply path 4 depends on the output of the water tap. As described above, the flow rate of the hydrogen gas supplied to the hydrogenated water production unit 5 is adjusted by the flow rate adjustment unit 38 (the electromagnetic valve 38b) based on the flow rate of the raw water detected by the flow switch 40. It is done.

  In addition, the raw water supply channel 4 is provided with a water purification cartridge (not shown) for removing free residual chlorine, lead and the like contained in tap water. As the water purification cartridge, a known configuration can be adopted. For example, a cartridge in which carbon filters including activated carbon, mineral ceramics, mineral filters including natural ore, and the like are arranged in a predetermined shape is used. .

  As shown in FIGS. 1 and 3, the hydrogenated water production unit 5 employs an ejector structure for mixing the raw material water with hydrogen gas, and the hydrogen gas supply path 3 is connected to the tube 50 having a double tube structure. The raw material water supply path 4 is connected, and the raw water and the hydrogen gas are supplied to the pipe body 50, whereby the raw water and the hydrogen gas are gas-liquid mixed to produce predetermined hydrogenated water. Specifically, the raw material water supply port 50a that is watertightly connected to the raw material water supply path 4 and the hydrogen gas supply path 3 are watertightly connected to the pipe body 50, and hydrogen gas is injected at a substantially right angle to the raw material water. The hydrogen gas supply port 50b to be manufactured, and the hydrogenated water discharge port 50c and the like in which the produced hydrogenated water is discharged out of the pipe body 50 and sent to the discharge path 54 described later are formed. Further, in the pipe body 50, a tapered nozzle 51 formed at the tip of the raw material water supply port 50a, a diffusion chamber 52 having a diameter reduced from both ends toward the center, and a porous material disposed in the diffusion chamber 52. Elements 53 and the like are provided.

  The diffusion chamber 52 is configured to have a reduced diameter structure (a throttle structure) from both ends toward the center, and a negative pressure is formed at the throttle portion. With such a throttle structure, the suction effect of the mixed fluid of hydrogen gas supplied from the hydrogen gas supply path 3 to the pipe body 50 and raw water supplied from the raw water supply path 4 to the pipe body 50 is enhanced. Can be made. Further, a hydrogenated water discharge port 50 c is formed at the tip of the downstream portion of the diffusion chamber 52.

  The porous element 53 is formed in a filter structure having a predetermined pore diameter. Specifically, the porous element 53 has pores having a diameter in the range of 120 μm to 2 μm and a thickness of 5 to 20 mm (preferably 5 to 10 mm). Is used. The material of the porous element 53 is not particularly limited, and for example, a sintered body such as gun metal, bronze, nickel, stainless steel, ceramics, a wire net, or the like is used. However, when hydrogenated water is used for drinking, a sintered body of stainless steel is preferable.

  The porous element 53 is formed in the porous element 53 by filling the diffusion chamber 52 and injecting a mixed fluid composed of hydrogen gas and raw water introduced into the diffusion chamber 52 through the porous element 53. Bubbles having a diameter substantially the same as the diameter of the open holes are formed. The porous element 53 is appropriately selected mainly depending on conditions of water pressure and water amount. For example, when fine bubbles having a diameter of 10 μm or less are formed using a sintered Tyler mesh, those having a diameter of 120 mesh or more are preferably selected. The larger the Tyler mesh, the higher the concentration of dissolved hydrogen can be obtained. On the other hand, the pressure loss of the hydraulic water amount increases and the production efficiency decreases.

  In the hydrogenated water production unit 5 of the present embodiment, first, hydrogen gas is mixed with the raw water in the diffusion chamber 52 using the ejector effect, and the hydrogen water (mixed) is dissolved in the raw water. Fluid) is formed. The hydrogenated water is passed through the porous element 53, so that fine bubbles are contained in the hydrogenated water. The bubbles contained in the hydrogenated water contain hydrogen gas bubbles in addition to air bubbles dissolved in the raw water. That is, the hydrogenated water produced by the hydrogenated water production unit 5 does not mix the hydrogen gas with the raw material water in the form of bubbles, but once forms the hydrogenated water of the raw material water and hydrogen, and then the porous water By passing through the element 53, bubbles of hydrogen gas are contained.

  In this way, by configuring the hydrogenated water production unit 5, hydrogenated water containing fine bubbles of hydrogen gas is allowed to pass through the porous element 53 through a mixed fluid of raw water and hydrogen (hydrogenated water). Can be easily manufactured. The hydrogenated water produced in this way contains bubbles of hydrogen gas with a wide range of diameters, from microbubbles with a diameter of 120 μm or less to microbubbles and micronanobubbles, as fine bubbles. Excellent absorption efficiency in the liquid.

  A discharge path 54 for discharging the hydrogenated water to the outside of the machine is connected to the hydrogenated water production unit 5 at the hydrogenated water discharge port 50 c of the pipe body 50. The discharge path 54 is provided with a reaction tank 55 for temporarily storing the produced hydrogenated water and a manual valve 56 for taking it out of the apparatus at the downstream end. Further, the discharge path 54 is branched in the middle, and a separate manual valve 57 is provided. The manual valve 57 forces the hydrogenated water in the tube 50 and the discharge path 54 (reaction tank 55) to be forced. It is discharged (drained) outside the machine.

Here, the method for adjusting the pressure and flow rate of the hydrogen gas supplied to the hydrogenated water production unit 5 will be outlined below.
In the hydrogenated water production apparatus 1 of the present embodiment, the pump device 24a, the first pressure adjustment unit 34 (the pressure gauge 34b and the electromagnetic valve 34c), and the flow rate adjustment unit 38 (the gas flow meter 38a and the electromagnetic valve 38b) described above. Are connected to a control device (not shown), and the pressure and flow rate of the hydrogen gas supplied to the hydrogenated water production unit 5 are adjusted by the control device.

  That is, the pressure and flow rate of the hydrogen gas generated in the hydrogen gas generation unit 2 is first adjusted so as to have a predetermined value set in advance in the supply unit 10 (upstream supply path 31). After the hydrogen gas supplied from each supply unit 10 is merged in the merge unit 30, the pressure is finely adjusted in the second pressure adjusting unit 37 in the downstream supply path 32, and the flow rate is adjusted. The flow rate is finely adjusted based on the flow rate of the raw material water detected by the flow switch 40 in the part 38.

  Specifically, in the hydrogenated water production apparatus 1 of the present embodiment, the hydrogenated water production unit 5 produces hydrogenated water having a predetermined oxidation-reduction potential (−400 mV to −680 mV). Hydrogen gas supplied to the water production unit 5 is preferably 0.2 to 0.5 MPa with respect to the raw water adjusted to have a water pressure of 0.1 to 0.5 MPa and a supply amount of 5 to 20 liters / minute. The pressure is adjusted to 0.8 MPa and the supply flow rate is 0.1 to 10 liters / minute.

  Next, an example of hydrogenated water production using the hydrogenated water production apparatus 1 of the present embodiment will be described in detail below.

  In all of the following production examples, the redox potential measurement was performed with a portable ORP meter RM-20P manufactured by Toa DK, the pH was measured with a portable pH meter HM-20P manufactured by Toa DK, and the dissolved hydrogen content was measured with Toa DK. Measurement was performed using a DHD-1 type dissolved hydrogen meter manufactured by KK.

  In Production Example 1, Fukuyama City Waterworks Bureau, Fukuyama City, Hiroshima, which was dechlorinated through an activated carbon filter to produce hydrogenated water having a dissolved hydrogen content of 0.7 ppm or more using the hydrogenated water producing apparatus 1 described above. Tap water (water temperature 15.3 ° C., dissolved hydrogen amount 0.01 ppm) was adjusted to a flow rate of 7 liters / minute and a water pressure of 0.2 MPa, and hydrogen gas was supplied to the raw water at a flow rate of 0.4 liters / minute, gas. The pressure was adjusted to 0.5 MPa and supplied to the hydrogenated water production unit 5. As a result, hydrogenated water having a dissolved hydrogen content of 0.775 ppm, an oxidation-reduction potential of -610 mV, and a pH of 7.3 was continuously obtained.

  In Production Example 2, the above-described hydrogenated water production apparatus 1 is used to produce hydrogenated water having a dissolved hydrogen content of 1.2 ppm or more, which was dechlorinated through an activated carbon filter in Fukuyama City, Hiroshima Prefecture. Station tap water (water temperature 15.3 ° C., dissolved hydrogen amount 0.01 ppm) was supplied. In the hydrogenated water production apparatus 1, the raw water is adjusted to a flow rate of 7 liters / minute and a water pressure of 0.2 MPa, and the hydrogen gas is adjusted to a flow rate of 1.2 liters / minute and the gas pressure to 0.5 MPa for the raw water. In this state, each was supplied to the hydrogenated water production unit 5. As a result, hydrogenated water having a dissolved hydrogen content of 1.25 ppm, an oxidation-reduction potential of -618 mV, and a pH of 7.35 was continuously obtained.

  In Production Example 3, the above-described hydrogenated water production apparatus 1 was used to produce hydrogenated water having a dissolved hydrogen content of 1.5 ppm or more, and was dechlorinated through an activated carbon filter in Fukuyama City, Hiroshima Prefecture. Station tap water (water temperature 15.3 ° C., dissolved hydrogen amount 0.01 ppm) was supplied. In the hydrogenated water production apparatus 1, the raw water is adjusted to a flow rate of 7 liter / min and a water pressure of 0.2 MPa, and the hydrogen gas is adjusted to a flow rate of 5.0 liter / min and a gas pressure of 0.5 MPa for the raw water. In this state, each was supplied to the hydrogenated water production unit 5. As a result, hydrogenated water having a dissolved hydrogen amount of 1.835 ppm, an oxidation-reduction potential of -625 mV, and a pH of 7.45 was continuously obtained.

  As described above, the hydrogenated water production apparatus 1 according to the present embodiment is provided with the hydrogenated water production unit 5 that continuously produces hydrogenated water by mixing the raw material water with hydrogen gas. In the production apparatus 1, one or a plurality of hydrogen gas generation units 2 that electrolyze raw water for hydrogen gas to generate hydrogen gas, and hydrogen gas from one or more hydrogen gas generation units 2 to produce hydrogenated water A hydrogen gas supply path 3 for supplying to the section 5 and a raw water supply path 4 for connecting raw water for hydrogenated water to the hydrogenated water producing section 5 connected to a raw water supply source outside the apparatus. The flow rate adjusting unit that adjusts the flow rate of the hydrogen gas supplied to the hydrogenated water production unit 5 on the downstream side of the hydrogen gas supply channel 3 based on the flow rate of the raw material water supplied from the raw water supply channel 4 Since 38 is provided, the device configuration is reduced in size and handling is improved compared to the conventional configuration. Door can be.

  That is, in the configuration of the present embodiment, one or a plurality of hydrogen gas generation units 2 that generate hydrogen gas by electrolyzing raw water for hydrogen gas are provided as a hydrogen gas supply source for the hydrogenated water production unit 5. Therefore, the apparatus configuration can be reduced in size as compared with the conventional case using a hydrogen gas cylinder while ensuring the supply of hydrogen gas necessary for producing hydrogenated water having a predetermined amount of dissolved hydrogen. In particular, high-pressure gas replacement and handling qualifications are not required, improving handling and improving safety. Further, since the hydrogen gas generation unit 2 generates hydrogen gas by electrolysis, it is highly efficient and has low power consumption and is economical.

  In addition, from the viewpoint so far, it is clear that the amount of hydrogen dissolved in the hydrogenated water produced in the hydrogenated water production unit 5 can be adjusted by changing the flow rate of hydrogen gas relative to the raw water, In this embodiment, a mixed fluid in which hydrogen gas is mixed with raw material water is generated by the ejector effect, and hydrogenated water containing fine bubbles of hydrogen gas is continuously passed by passing the mixed fluid through a porous element. A method for producing hydrogenated water using an apparatus for producing hydrogenated water 1 comprising a hydrogenated water producing unit 5 to be produced, wherein the hydrogenated water producing unit 5 is electrolyzed with raw water for hydrogen gas. Then, hydrogen gas generated in one or a plurality of hydrogen gas generators 2 for generating hydrogen gas and raw water for hydrogenated water supplied from a raw water supply source outside the apparatus are supplied, Hydrogenated water production by comparing the flow rate with the flow rate of raw water 5 as pressurized hydrogen water produced is the redox potential of the predetermined range at and adjusts the hydrogen gas to a predetermined flow rate relative to the previously adjusted to a predetermined flow rate raw water.

  In particular, in the present embodiment, the hydrogenated water production apparatus 1 includes a gas flow meter 38 a that detects the flow rate of hydrogen gas supplied to the hydrogenated water production unit 5, and hydrogen supplied to the hydrogenated water production unit 5. An electromagnetic valve 38b for adjusting the gas flow rate and a flow switch 40 for detecting the flow rate of the raw water supplied to the hydrogenated water production unit 5 are provided, and the hydrogen gas flow rate and flow switch detected by the gas flow meter 38a are provided. The raw water adjusted to a predetermined flow rate in advance so that the hydrogenated water produced by the hydrogenated water production unit 5 has a redox potential within a predetermined range in comparison with the flow rate of the raw water detected by 40. On the other hand, the solenoid valve 38b is controlled to adjust the hydrogen gas to a predetermined flow rate, and the hydrogenated water having the target oxidation-reduction potential can be easily manufactured by such a manufacturing method.

  In addition, the flow rate adjustment unit 38 of the present embodiment includes a gas flow meter 38a as a flow rate detection sensor that detects the flow rate of the hydrogen gas supplied to the hydrogenated water production unit 5, and hydrogen gas detected by the gas flow meter 38a. The electromagnetic valve 38b is provided as a flow rate adjusting valve for adjusting the flow rate of the hydrogen gas supplied to the hydrogenated water production unit 5 by comparing the flow rate of the raw material water with the flow rate of the raw material water supplied from the raw material water supply path 4. Therefore, the flow rate adjustment unit 38 can be configured simply, and the flow rate of the raw material water can be finely adjusted with good responsiveness.

  Further, the hydrogen gas supply path 3 of the present embodiment is connected to the merging section 30 branched in the middle of the hydrogen gas generating section 2 and the hydrogenated water producing section 5 and the hydrogen gas generating section 2 having an upstream end. And one or a plurality of upstream supply passages 31 whose downstream ends are connected to the merging portion 30, and whose upstream ends are connected to the merging portion 30 and whose downstream ends are connected to the hydrogenated water production unit 5, Since the downstream supply path 32 provided with the number 38 is provided, the plurality of upstream supply paths 31 are connected to the merging section 30 so that the hydrogen gas from the plurality of hydrogen gas generating sections 2 is merged. The amount of gas supply can be easily increased or decreased, and the adjustment range of the oxidation-reduction potential of the hydrogenated water produced can be expanded.

  Further, in the hydrogen gas supply path 3 of the present embodiment, the pressure of the hydrogen gas sent out from the hydrogen gas generation unit 2 is adjusted upstream of the merging unit 30 so as to be a predetermined value set in advance. A second pressure that is provided with one pressure adjustment unit 34 and adjusts the pressure of the hydrogen gas supplied to the hydrogenated water production unit 5 to a predetermined value that is set downstream of the merge unit 30. Since the adjusting unit 37 is provided, the pressure of the hydrogen gas generated in the hydrogen gas generating unit 2 is adjusted and then pumped to the merging unit 30, so that the hydrogen gas supplied to the hydrogenated water production unit 5 after merging is adjusted. The pressure can be easily fine-tuned.

  In addition, as the manufacturing apparatus 1 of the hydrogenated water of a present Example, it is not limited to the structure etc. which were mentioned above.

  That is, in the above-described embodiment, the configuration in which a plurality of (four) supply units 10 are provided has been described. However, the number of supply units 10 (including the hydrogen gas generation unit 2, the downstream supply path 32, and the like) It does not specifically limit, At least 1 or more should just be provided. For example, in the case where one downstream supply path 32 is connected to the merging portion 30 and one hydrogen gas generating portion 2 is provided, the relief valve 30a and the throttle valve in the merging portion 30 as in the above-described embodiment. 35, the check valve 36, the second pressure adjustment unit 37, and the like are not necessarily provided.

  The configuration of the pressure adjusting units 34 and 37 is not limited to the above-described configuration, but the second pressure adjusting unit 37 is simpler than the configuration of the first pressure adjusting unit 34 as in the above-described embodiment. Can be configured. When one supply unit 10 is provided, the hydrogen gas supply path 3 may be provided with at least a pressure adjusting unit at a position.

  As the configuration of the flow rate adjustment unit 38, for example, a flow rate adjustment valve with a check valve, a pilot operation flow rate adjustment valve, a flow rate with a pilot operation check valve, and a one-way throttle valve may be used as the flow rate adjustment valve. Further, a module in which the flow rate detection sensor and the flow rate adjustment valve are modularized may be used.

  The raw water supply source outside the apparatus to which the raw water supply path 4 is connected is not limited to a water tap as in the above-described embodiment, but is a storage tank in which raw water for hydrogenated water is stored. There may be. In such a case, when the raw water is supplied to the raw water supply path 4, the pressure and flow rate are adjusted to predetermined values.

  In the configuration of the hydrogenated water production unit 5, not only the tube body 50 is used alone as in the above-described embodiment, but a plurality of pipe bodies 50 may be arranged on a substantially straight line along the longitudinal direction. By setting it as this structure, hydrogen gas is further mixed with the mixed fluid (hydrogenated water) of the raw material water and hydrogen gas supplied to the adjacent pipe 50, and hydrogen gas is saturated to raw material water. In addition, the bubbles contained in the mixed fluid (hydrogenated water) can be gradually refined as it is supplied to the pipe body 50 on the downstream side.

DESCRIPTION OF SYMBOLS 1 Hydrogenated water production apparatus 2 Hydrogen gas generation part 3 Hydrogen gas supply path 4 Raw material water supply path 5 Hydrogenated water production part 38 Flow rate adjustment part (flow rate adjustment means)

Claims (5)

Hydrogenated water that continuously produces hydrogenated water containing fine bubbles of hydrogen gas by generating a mixed fluid in which hydrogen gas is mixed with raw water by the ejector effect and passing the mixed fluid through a porous element A method for producing hydrogenated water using a device for producing hydrogenated water comprising a production unit,
Hydrogen gas generated in one or a plurality of hydrogen gas generators that generate hydrogen gas by electrolyzing the raw water for hydrogen gas is supplied to the hydrogenated water production unit from a raw material water supply source outside the apparatus. Supply raw water for hydrogenated water,
The raw water adjusted to a predetermined flow rate in advance so that the hydrogenated water produced in the hydrogenated water production unit has a redox potential within a predetermined range by comparing the flow rate of hydrogen gas with the flow rate of raw water. The hydrogen gas is adjusted to a predetermined flow rate with respect to
The manufacturing method of the hydrogenated water characterized by the above-mentioned. In the hydrogenated water production apparatus,
A hydrogen gas flow rate detection sensor for detecting a flow rate of hydrogen gas supplied to the hydrogenated water production unit;
A flow rate adjusting valve for adjusting the flow rate of hydrogen gas supplied to the hydrogenated water production unit;
A flow rate detection sensor for raw water that detects the flow rate of raw water supplied to the hydrogenated water production unit;
Hydrogen gas produced by the hydrogenated water production unit by comparing the flow rate of hydrogen gas detected by the flow rate detection sensor for hydrogen gas with the flow rate of raw material water detected by the flow rate detection sensor for raw material water The hydrogen gas is adjusted to a predetermined flow rate by controlling the flow rate adjustment valve with respect to the raw material water that has been adjusted to a predetermined flow rate in advance so that the water has a redox potential within a predetermined range.
The method for producing hydrogenated water according to claim 1.   After adjusting the pressure and flow rate so that the hydrogen gas generated in the hydrogen gas generation unit becomes a predetermined value set in advance, fine adjustment based on the flow rate of raw material water is supplied to the hydrogenated water production unit The method for producing hydrogenated water according to claim 1 or 2, wherein:   The said hydrogen gas generation | occurrence | production part has a proton exchange membrane type electrolysis cell, The manufacturing method of the hydrogenated water as described in any one of Claim 1 thru | or 3 characterized by the above-mentioned.   The said hydrogen gas generation | occurrence | production part is connected to the raw material water tank in which the raw water for hydrogen gas is stored via a circulation path, The addition as described in any one of Claim 1 thru | or 4 characterized by the above-mentioned. A method for producing hydrogen water.

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