JP2018008230A - Hydrogen-containing water and method of producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide hydrogen-containing water that contains high-concentration hydrogen gas, and a production method thereof.SOLUTION: A method of producing hydrogen-containing water includes: a hydrogen gas supply step of introducing hydrogen gas into water to be treated drawn from a storage tank; a pressurizing and mixing step of pressurizing and mixing the water to be treated into which the hydrogen gas has been introduced to obtain gas-liquid mixed water; a collapse step of collapsing the gas-liquid mixed water to obtain hydrogen-containing water containing microbubbles; and a return step of returning the hydrogen-containing water having undergone the collapse step to the storage tank. While circulating the hydrogen-containing water in the storage tank as the water to be treated, the respective steps are repeatedly performed to obtain hydrogen-containing water which generates hydrogen gas in an amount of 15 ppm (W/V) in 2.35 ml of a gas phase when 300 ml of the hydrogen-containing water is irradiated with ultrasonic waves of 20 kHz and 100 W for 30 minutes.SELECTED DRAWING: None

Description

  The present invention relates to hydrogen-containing water containing fine bubbles of hydrogen gas in addition to hydrogen gas dissolved in water, and a method for producing the same.

  In recent years, it has been announced that hydrogen-containing water (also called “hydrogen water”) has a beautifying skin effect, an obesity-suppressing effect, a dementia-improving effect, an arteriosclerosis-suppressing effect, a libido-reducing improving effect, etc. Various hydrogen-containing beverages corresponding to this are commercially available.

  Hydrogen molecules are gaseous at normal temperature and normal pressure (0.101 MPa · 293 K). Since the dissolved amount of hydrogen molecules in 1000 g of water is 0.00162 g, it is 1.62 ppm when converted as dissolved hydrogen / water, and this is the saturation solubility at normal temperature and pressure.

  As a method for obtaining hydrogen-containing water containing hydrogen gas having a concentration higher than 1.62 ppm, a method using pressurization is known. Since gas solubility is proportional to pressure, high-concentration hydrogen-containing water can be obtained by blowing hydrogen gas into water while pressurizing in a closed container or generating a large amount of hydrogen gas in a pressure-resistant container. . For example, in Patent Document 1 below, hydrogen gas is filled in a pressure vessel from which air has been removed, and raw water is showered in the pressure vessel while maintaining the hydrogen gas pressure in the pressure vessel at 2 to 10 atm. A method for obtaining hydrogen-containing water by spraying water in contact with hydrogen gas is described.

  In addition, as a method for obtaining hydrogen-containing water containing a high concentration of hydrogen gas, a method using nanobubbles is also known. Nanobubbles refer to nanometer-sized fine bubbles. For example, in Patent Document 2 below, a hydrogen gas generator, a liquid container such as water disposed therein, and a sealed container provided with a blowout port for blowing the hydrogen gas into the liquid through a porous plate; A method is described in which hydrogen-containing water is obtained by an apparatus equipped with a stirring means or the like for refining a liquid containing hydrogen gas bubbles in the sealed container.

Japanese Patent No. 3606466 Japanese Patent Application Laid-Open No. 2015-188857

  However, the hydrogen-containing water obtained by the pressurized method will quickly deaerate the hydrogen gas dissolved in the water when the pressure is returned to normal pressure. There was a problem that it did not contain enough hydrogen. Moreover, the hydrogen-containing water obtained by the method using nanobubbles described in Patent Document 2 also has a problem that it does not contain a high concentration of hydrogen as expected.

  Accordingly, an object of the present invention is to provide hydrogen-containing water containing a higher concentration of hydrogen gas and a method for producing the same.

  In order to achieve the above object, the hydrogen-containing water of the present invention, in addition to hydrogen gas dissolved in water, in hydrogen-containing water containing fine bubbles of hydrogen gas, with respect to 300 ml of the hydrogen-containing water, 20 KHz, The amount of hydrogen generated in a 2.35 ml gas phase when irradiated with 100 W ultrasonic waves for 30 minutes is 15 ppm (W / V) or more.

  According to the hydrogen-containing beverage of the present invention, in addition to hydrogen gas dissolved in water, it contains a large amount of fine bubbles of hydrogen gas that can be degassed by ultrasonic irradiation. Hydrogen-containing water to be contained can be obtained. Moreover, the state containing high concentration hydrogen gas can be maintained over a long period of time, and for example, the antioxidant effect in the body when ingested as a beverage can be enhanced.

  On the other hand, the method for producing hydrogen-containing water of the present invention includes a hydrogen gas supply step for introducing hydrogen gas into the water to be treated drawn from the storage tank, and a gas-liquid by pressurizing and agitating the water to be treated into which hydrogen gas has been introduced. A pressure stirring step for mixing water, a crushing step for crushing the gas-liquid mixed water to form hydrogen-containing water containing fine bubbles, and a returning step for returning the hydrogen-containing water that has undergone the crushing step to the storage tank. The hydrogen-containing water stored in the storage tank is 20 KHz with respect to 300 ml of the hydrogen-containing water. The amount of hydrogen generated in the 2.35 ml gas phase when irradiated with 100 W ultrasonic waves for 30 minutes is 15 ppm (W / V) or more.

  According to the method for producing hydrogen-containing water of the present invention, the hydrogen-containing water stored in the storage tank is circulated as water to be treated, so that hydrogen gas is introduced and pressurized and stirred to form gas-liquid mixed water. By repeating the agitation step and the crushing step of crushing the gas-liquid mixed water gas-liquid mixed water gas-liquid mixed water into hydrogen-containing water containing fine bubbles, in addition to dissolved hydrogen, nanobubbled hydrogen fine bubbles A large amount of hydrogen-containing water can be obtained.

  Further, when hydrogen-containing water stored in a storage tank is circulated as water to be treated and the above process is repeated, 300 ml of the hydrogen-containing water is irradiated with ultrasonic waves of 20 KHz and 100 W for 30 minutes. By making the amount of hydrogen generated in the .35 ml gas phase 15 ppm (W / V) or more, hydrogen-containing water sufficiently containing nanobubbled hydrogen fine bubbles can be obtained.

  The fine hydrogen bubbles are stably suspended and retained in water, and are prevented from escaping into the gas phase. And even if the hydrogen dissolved in the water flows out and decreases, the hydrogen elutes from the hydrogen gas contained as bubbles into the water, so that the dissolved hydrogen content can be maintained at a high concentration over a long period of time.

  In the method for producing hydrogen-containing water of the present invention, it is preferable to press the raw material water in the pressure stirring step at 0.2 MPa to 2.5 MPa. By supplying hydrogen gas into the pressurized water, it is possible to suppress hydrogen gas from flowing out into the gas phase as much as possible, and to efficiently generate bubbles of hydrogen gas in the subsequent crushing process.

  Moreover, it is preferable to adjust the temperature of the water containing hydrogen gas to 10 to 40 ° C. before the pressure stirring step and / or before the crushing step. By maintaining the temperature in the range and performing the pressure stirring step and / or the crushing step, the hydrogen gas is easily released into water while suppressing the escape of hydrogen gas into the gas phase, The dissolved hydrogen content can be increased.

  Furthermore, the hydrogen-containing water finally obtained is sterilized or sterilized by non-heating type sterilization or sterilization means, and the inside of the container made of hydrogen-impermeable material is sterilized with silver ion water, The container is preferably filled with the sterilized or sterilized hydrogen-containing water and sealed. Both hydrogen-containing water sterilization or sterilization treatment and container sterilization treatment are performed in a non-heated manner, and hydrogen-containing water is filled and sealed in a container made of a hydrogen-impermeable material. Hydrogen-containing water containing hydrogen in a bubble state at a high concentration can be obtained.

  According to the hydrogen-containing beverage of the present invention, in addition to hydrogen gas dissolved in water, since it contains a large amount of fine bubble-like hydrogen gas that is degassed by ultrasonic irradiation, high-concentration hydrogen gas Hydrogen-containing water containing can be obtained. Moreover, the state containing high concentration hydrogen gas can be maintained over a long period of time, and for example, the antioxidant effect in the body when ingested as a beverage can be enhanced.

It is a schematic explanatory drawing which shows an example of the manufacturing apparatus for enforcing the manufacturing method of hydrogen containing water by this invention. It is explanatory drawing which shows an example of the pump used with the manufacturing apparatus. It is explanatory drawing which shows an example of the nano bubble generator used with the manufacturing apparatus. It is a front view of the sterilizer which assembles the packaging container with a spout used by this invention, and carries out internal sterilization with silver ion water. It is a top view of the same sterilizer. (A) is the 1st station of the same sterilizer, and is a perspective view which shows the state which inserted the spout in the packaging container main body with a spout, (b) is the 3rd station of the same sterilizer, and a spout is a packaging container with a spout. It is a perspective view which shows the state welded to the main body. (A) is the 4th station of the same sterilizer, the perspective view which shows the state where the spray nozzle of silver ion water is inserted in the spout of the packaging container with spout, (b) is the spray nozzle at the 4th station It is a perspective view which shows the state which sprayed silver ion water in the packaging container with a spout. It is a perspective view which shows the state which attracts | sucks the silver ion water sprayed in the packaging container main body with a spout in the 5th station of the same sterilizer. It is a perspective view which shows one Embodiment of the drink filled with the hydrogen containing water of this invention.

  The hydrogen-containing water used in the present invention contains fine bubble-like hydrogen gas in addition to hydrogen gas dissolved in water.

  The maximum concentration of hydrogen gas dissolved in water can be determined from the solubility of hydrogen molecules in water. The amount of hydrogen dissolved in 1000 g of water is about 0.00162 g at 1 atmosphere and 20 ° C., and the solubility of hydrogen in water is about 1.62 ppm.

  The concentration of hydrogen dissolved in water can be measured by a measuring instrument using a flow-type dissolved hydrogen electrode. As such a measuring device, for example, a trade name “KM2100DH” manufactured by Kyoei Denshi Kenkyusho and a trade name “DH-35” manufactured by Toa DKK Corporation are known. It is also possible to calculate the hydrogen concentration by collecting a predetermined amount of hydrogen-containing water and determining the hydrogen content by gas chromatography.

  The dissolved hydrogen concentration when the hydrogen-containing water of the present invention is 1 atm and 20 ° C. is not particularly limited, but is preferably 0.7 ppm or more.

  On the other hand, the bubble-like hydrogen gas refers to a gas in which hydrogen gas is dispersed in water. The size of the bubble is not particularly limited, but is preferably as fine as possible in order to be retained in water for a long time. For example, in the state of a micro bubble or a nano bubble (also referred to as “ultra fine bubble”) It is preferable that it is contained, and it is particularly preferred that it is contained in a nanobubble state. Here, the microbubble refers to a bubble having a diameter of about 1 to 100 μm, and the nanobubble refers to a bubble having a diameter smaller than 1 μm.

  In general, bubbles rise in water and eventually rupture at the liquid level. However, fine bubbles such as microbubbles and nanobubbles have a low ascending speed and can stay in water for a long time. In particular, nanobubbles can take longer time in water.

  Nanobubbles are difficult to observe because they exceed the diffraction limit of visible light. However, its presence can be confirmed by irradiating laser light and projecting the scattering with a microscope or the like.

  The concentration of the hydrogen gas in a bubble state floating in water can be measured by applying ultrasonic vibration to the water to collapse the hydrogen gas bubbles and capturing the hydrogen gas generated in the gas phase. In the present invention, when 300 ml of hydrogen-containing water is irradiated with ultrasonic vibration at an output of 20 KHz and 100 W for 30 minutes, the concentration of hydrogen gas generated in the gas phase of 2.35 ml is measured and suspended in water. Estimate the concentration of hydrogen gas in the bubble state. In addition, although it does not specifically limit as an ultrasonic vibration apparatus, For example, ultrasonic cleaning apparatuses, such as "SW-039" (brand name: Wave Cleaner, Fujix Co., Ltd. product), can be used.

  The measurement method will be described in more detail. 300 ml of hydrogen-containing water is packaged with a spout formed by welding and fixing a cylindrical spout (suction mouth) to a flexible bag-shaped container made of a gas barrier sheet. Fill a container (what is called a “cheer pack”), adjust so that an air layer of 2.35 ml remains inside, and seal the opening of the spout with a seal.

  The spout-equipped packaging container filled with hydrogen water is immersed in the water tank of the ultrasonic cleaning apparatus, and ultrasonic vibration is irradiated for 30 minutes at an output of 20 KHz and 100 W through the water in the vibrating water tank.

  Thereafter, the injection needle of the syringe is inserted through the seal of the packaging container with a spout and inserted into the air layer, and the gas in the air layer is sucked and contained in the sucked gas by gas chromatography or the like. Measure the hydrogen gas concentration.

  The hydrogen-containing water of the present invention may be produced by any method, but can be preferably produced by the following method.

  That is, a hydrogen gas supply step for introducing hydrogen gas into the water to be treated drawn from the storage tank, a pressure agitation step for pressurizing and stirring the water to be treated into which hydrogen gas has been introduced into gas-liquid mixed water, A crushing step of crushing the gas-liquid mixed water into hydrogen-containing water containing fine bubbles, and a returning step of returning the hydrogen-containing water that has undergone the crushing step to the storage tank, wherein the hydrogen-containing water in the storage tank is When the hydrogen-containing water stored in the storage tank irradiates 300 ml of the hydrogen-containing water with 20 KHz, 100 W ultrasonic waves for 30 minutes by circulating as treated water and repeating the above steps. 2. The amount of hydrogen generated in 35 ml of gas phase is set to 15 ppm (W / V) or more. More preferably, it is 20 ppm (W / V) or more. The upper limit is not particularly limited, but can be about 100 ppm (W / V).

  Hereinafter, an embodiment of a production method of the present invention will be described with reference to the drawings.

  FIG. 1 shows an example of a manufacturing apparatus for carrying out the manufacturing method of the present invention. This manufacturing apparatus 100 has a storage tank 101 for hydrogen-containing water.

  A raw water supply pipe 102 for introducing the raw water W is connected to the storage tank 101. A filter 103 for filtering the raw water W is provided in the middle of the supply pipe 102.

  The raw water is not limited to pure water but may be mineral-containing water containing various minerals and the like, and is included in general soft drinks such as sugars, fruit juices, acidulants, and various vitamins. An aqueous solution containing various raw materials may be used. In the present invention, well water containing various minerals is preferably used. Examples of minerals include calcium, magnesium, sodium, potassium, and the like.

  In addition, a treated water supply pipe 105 that takes out hydrogen-containing water and sends it to the pump 104 is connected to the bottom of the storage tank 101. A hydrogen gas supply pipe 106 is connected to the treated water supply pipe 105 on the way to the pump 10, preferably in the vicinity of the pump 104. The base end side of the hydrogen gas supply pipe 106 is connected to a hydrogen gas supply means (not shown). As the hydrogen gas supply means, for example, a hydrogen gas cylinder or a hydrogen gas generator that generates hydrogen gas by electrolyzing water is adopted.

  A motor 107 is attached to the pump 104. The structure of the pump 104 is not particularly limited, and for example, a spiral pump, a gear pump, a vane pump, or the like is employed.

  An example of such a pump is shown in FIG. The pump 104 includes a spiral pump including a vortex-shaped casing 13a and an impeller 13b that rotates in the casing 13a. A connecting pipe 109 connected to the nanobubble generator 108 is connected to the outlet side of the pump 104.

  When the impeller 13b of the pump 104 rotates, the hydrogen gas H is sucked from the introduction port 106 due to negative pressure and introduced into the water W, and the hydrogen gas H is turned into fine bubbles by the pump 104 to become gas-liquid mixed water HW. Introduced into tube 109. At this time, the gas-liquid mixed water HW contains hydrogen gas bubbles that are refined to a micro size by the impeller 13 b of the centrifugal pump 104.

  As the pump 104, for example, a gear pump described in FIG. 3 of WO2015 / 0565547 can be adopted, and hydrogen gas can be miniaturized to about micro size.

  The nanobubble generator 108 crushes the hydrogen gas contained in the gas-liquid mixed water HW to make it finer. Although the structure is not particularly limited, for example, the following can be employed.

  Swirling liquid flow type: A pump is used to press the liquid at a high speed in a tangential direction from the side of the cylindrical generator body, high-speed commutation is generated inside, and hydrogen gas is sucked from the small hole on the lower end surface. A system that passes through a small hole in the center of the end face and applies a shearing force to form nanobubbles.

  Venturi type: A system that generates nanobubbles by letting a liquid containing bubbles at high speed pass through a channel with a reduction and expansion of the cross-sectional area of the pipeline, and causing the bubbles to collapse violently by a sudden pressure change.

  Static mixer type: A system in which the structure in the flow path is complicated without using mechanical breaking operations, and hydrogen gas is crushed mainly by a large viscous shear force derived from vortex flow.

  Pressurized dissolution method: Gas-liquid mixed water is pressurized with a pump, gas components are dissolved in the liquid until supersaturated, undissolved bubbles are separated, only the supersaturated liquid is flushed into the normal pressure liquid through the pressure reducing valve, and nanobubbles are released. Precipitation method.

  Heating precipitation method: A method in which a gas is supersaturated and dissolved in advance at a low temperature, and nanobubbles are precipitated from the liquid by applying an appropriate stimulus while heating.

  Ultrasonic cavitation method: A method of generating nanobubbles made of vapor or dissolved gas by irradiating a liquid with ultrasonic waves.

  An example of such a nanobubble generator 108 is shown in FIG. The nanobubble generator 108 includes an upstream screw portion 18 and a downstream cutter portion 19. The screw portion 18 includes a cylindrical main body 19, a rotary shaft 20 disposed at the center of the main body 19, and a spiral blade 21 attached to the outer periphery of the rotary shaft 20.

  The cutter unit 19 includes a main body 22 that forms a cylinder of the same diameter continuous from the main body 19, a hook-shaped protrusion 23 that projects from the inner peripheral surface of the main body 22 toward the center, and the rotation of the screw unit 18. The shaft 20 is expanded and the stirring body 24 is formed with a spiral groove on the outer periphery.

  Therefore, the gas-liquid mixed water HW introduced into the connecting pipe 14 in FIG. 2 is guided to the screw portion 18 in FIG. 3 and is given a rotational force and a strong twist by the spiral blade 21 to become a swirling flow, and the cutter portion 19. To be introduced. Further, the gas-liquid mixed water 16 is swirled at a high pressure in the cutter unit 19 and becomes a turbulent flow 25 by the projections 23, and the hydrogen gas bubbles contained therein are further refined so that the bubble diameter is about 10 to 500 nm. The hydrogen-containing water NHW has fine hydrogen gas bubbles.

  The bubble diameter of the hydrogen gas contained in the ultrafine bubble mixture 26 can be measured by monitoring the Brownian motion of the nanoparticles.

  The nanobubble generator 108 is connected to the storage tank 101 via a return pipe 110. Note that a pressure adjusting valve, a solenoid valve, or the like (not shown) may be attached to the return pipe 110.

  The storage tank 101 is connected to a hydrogen-containing water extraction pipe 111 that takes out the stored hydrogen-containing water and sends it to a device that fills a container such as a cheapack. A filter 112 is connected to the hydrogen-containing water supply pipe 111.

  The hydrogen-containing water containing nanobubble-like hydrogen gas stored in the storage tank 101 can be sterilized by passing through the filter 112 when taking out through the hydrogen-containing water supply pipe 111. As a method for sterilization or sterilization of hydrogen-containing water, for example, a method such as UV sterilization or UHT sterilization (Ultra high temperature heating method) may be employed.

  An embodiment of the method for producing hydrogen-containing water of the present invention using the above production apparatus will be described. First, the raw water W such as the well water described above is passed through the filter 103 through the raw water supply pipe 102 and then stored. Supply to tank 101. The raw water W is mixed with hydrogen-containing water stored in the storage tank 101 and becomes treated water described later. It is preferable to perform the supply amount and supply timing of the raw water W so as to maintain the equilibrium with the extraction of hydrogen-containing water described later.

  Then, a part of the hydrogen-containing water stored in the storage tank 101 is supplied to the pump 104 as water to be treated through the water to be treated supply pipe 105 (hydrogen gas supply process).

  Immediately before reaching the pump 104, the hydrogen gas supplied from the hydrogen gas supply means such as a hydrogen cylinder through the hydrogen gas supply pipe 106 is mixed with the raw water W, pressurized and stirred by the pump 104, and the hydrogen gas H Becomes the gas-liquid mixed water HW made into fine bubbles (pressure stirring step, see FIG. 2).

  The pump 104 pressurizes the gas-liquid mixed water HW to preferably 0.2 to 2.5 MPa, more preferably 0.3 to 1.5 MPa, and most preferably 0.4 MPa to 1.0 MPa. Send to 108.

  The nanobubble generator 108 crushes the gas-liquid mixed water HW to form hydrogen-containing water NHW containing fine bubbles (a crushing step, see FIG. 3). Thereby, hydrogen-containing water NHW having ultrafine hydrogen gas bubbles is formed.

  The hydrogen-containing water thus formed is returned to the storage tank 101 through the return pipe 110. Part of the hydrogen-containing water returned to the storage tank 101 is supplied again to the pump 104 through the treated water supply pipe 105 (hydrogen gas supply process), pressurized and stirred by the pump 104, and hydrogen gas. H becomes gas-liquid mixed water HW made into fine bubbles (pressure stirring step), and is further sent to the nanovalve generator 108 to crush the gas-liquid mixed water HW into hydrogen-containing water NHW containing fine bubbles. The process of (crushing process) is repeated. As described above, the hydrogen-containing water stored in the storage tank 101 is circulated and the above process is repeated, whereby the content of the nanobubble hydrogen gas can be increased.

  In the present invention, 300 ml of hydrogen-containing water is irradiated with ultrasonic vibration at an output of 20 KHz and 100 W for 30 minutes, and in that state, the concentration of hydrogen gas generated in the gas phase of 2.35 ml is measured, The above steps are repeated until the amount of hydrogen reaches 15 ppm (W / V) or more.

  In addition, when the volume of the hydrogen-containing water stored in the storage tank 101 is 60 to 100 L, the flow rate when circulating the above process is preferably 3 to 10 L / min, and the circulation time is preferably 10 to 30 minutes.

  A plurality of hydrogen-containing water production apparatuses 100 are provided for one storage tank 100, and these are connected in series so that the water to be treated supplied from one storage tank 101 has a plurality of production apparatuses 100. Productivity can be further improved by sending it back via.

  Thus, when hydrogen-containing water sufficiently containing nanobubble-like hydrogen gas is created in the storage tank 101, the hydrogen-containing water is taken out through the hydrogen-containing water extraction pipe 111 connected to the storage tank 101, and hydrogen-impermeable. Fill a container made of a functional material.

  4 to 9 show an embodiment of the present invention from taking out hydrogen-containing water to filling a container made of a hydrogen-impermeable material.

  In this embodiment, silver ion water is injected into a spout-equipped packaging container in which a cylindrical spout is welded and fixed to a flexible bag-shaped container made of a gas barrier sheet, and the spout-equipped packaging container. A sterilization step for sterilizing the inside, a silver ion water discharge step for sucking up the silver ion water stored in the spouted packaging container and discharging the silver ion water, and filling the spouted packaging container with hydrogen-containing water. And a hydrogen-containing water filling step for attaching a cap.

  The spout-equipped packaging container is formed by welding and fixing a cylindrical spout (sucking mouth) to a flexible bag-shaped container made of a gas barrier sheet. As the gas barrier sheet, for example, a sheet obtained by laminating a resin layer such as a polyamide resin, a polyolefin resin, or a polyethylene resin on a gas barrier layer made of a metal foil such as an aluminum foil is preferably used. In this case, the inner surface of the sheet needs to be made of a material that can be heat-sealed. For example, a polyolefin resin layer such as polyethylene is formed.

  4 and 5 show a sterilization apparatus for assembling a spout-equipped packaging container and injecting silver ion water therein to sterilize. Moreover, the procedure is shown in FIGS.

  As shown in FIG. 4, this sterilizer 40 has a rotating plate 44 that is rotatably supported by a driving device 43 on a base 41 via a support shaft 42. The flange 34 of the spout packaging container 30 described above is hooked on the rotating plate 44 and is rotated and conveyed to each station provided on the outer periphery of the rotating plate 44. The container 45 in FIG. 4 is a container that stores silver ion water.

  As shown in FIG. 5, on the outer periphery of the rotating plate 44, a first station 46 in which a spout / pouch supply temporary welding device is installed, a second station 47 in which a preheating device for welding is installed, and welding A third station 48 where the apparatus is installed, a fourth station 49 where the Ag spraying apparatus is installed, a fifth station 50 where the Ag suction apparatus is installed, and a sixth station 51 where the discharging apparatus is installed are provided. ing.

  In the first station 46, as shown in FIG. 6 (a), the packaging container main body 31 is supplied by the spout / pouch supply temporary welding apparatus, and the spout 32 is inserted into the packaging container main body 31 for temporary welding. The attached packaging container 30 is assembled. After that, the spout-equipped packaging container 30 is hooked on the rotating plate 44 of the sterilizer 40 via the flange 34 provided on the spout 32 and moves.

  In the second station 47, the welded portion between the packaging container main body 31 and the spout 32 is preheated by the preheating device.

  In the third station 48, as shown in FIG. 6B, the spout 32 is completely welded to the packaging container main body 31 at the welding portion 35 by the welding device.

  In the 4th station 49, as shown to Fig.7 (a), the spray nozzle 52 of Ag spraying apparatus is inserted in the spout 32 of the packaging container 30 with a spout. The spray nozzle 52 is provided with a seal ring 53, and is hermetically connected by the seal ring 53 when inserted into the spout 32. 7 (b), the silver ion water stored in the container 45 of FIG. 4 is sprayed from the spray nozzle 52 through the spout 32 into the spout-equipped packaging container 30, and the spout-equipped packaging container 30 inside. Is sterilized.

  In the fifth station 50, as shown in FIG. 8, the suction tube 54 of the Ag suction device is inserted into the spout 32 of the spout-equipped packaging container 30 and sprayed into the spout-equipped packaging container 30 through the suction tube 54 and the spout 32. Silver ion water is sucked. Note that a seal ring 55 is also attached to the suction pipe 54, and is hermetically connected by the seal ring 55 when inserted into the spout 32. When silver ion water is sucked in this way, the air inside the spout-equipped packaging container 30 is also sucked and discharged.

  In addition, it is preferable that silver ion water does not remain in the spouted packaging container 30 as much as possible. If necessary, after spraying with silver ion water, it can be washed with sterilized water and sucked again so that silver ions are not mixed into the hydrogen-containing water. However, it has been confirmed that silver ions are not harmful to the human body, and even if silver ion water remains, there is no problem in terms of safety.

  At the sixth station 51, the sterilized spout-equipped packaging container 30 is removed, moved to another station (not shown), and a cap is attached. Thus, after the inside of the packaging container 30 with a spout is sterilized, the packaging container 30 with a spout can be filled with hydrogen-containing water.

  Thus, by filling the spout-equipped packaging container 30 with hydrogen-containing water, a beverage 70 containing the hydrogen-containing water of the present invention shown in FIG. 9 is obtained. The beverage 70 is filled in a state in which the hydrogen-containing water is sterilized or sterilized without being subjected to heat sterilization after filling the hydrogen-containing water. For this reason, hydrogen contained in the hydrogen-containing water is not dissipated by heat sterilization, and a decrease in the hydrogen-containing concentration can be suppressed.

  In the hydrogen-containing water of the present invention, when 300 ml of the hydrogen-containing water is irradiated with ultrasonic waves of 20 KHz and 100 W for 30 minutes, the amount of hydrogen generated in the gas phase of 2.35 ml is 15 ppm (W / V) or more. It contains nanobubbled hydrogen fine bubbles so that.

  The fine hydrogen bubbles are stably suspended and retained in water, and are prevented from escaping into the gas phase. And even if the hydrogen dissolved in the water flows out and decreases, the hydrogen elutes from the hydrogen gas contained as bubbles into the water, so that the dissolved hydrogen content can be maintained at a high concentration over a long period of time.

<Example 1>
1-3, a hydrogen gas supply step of introducing hydrogen gas into the water to be treated drawn from the storage tank, and a gas-liquid mixed water by pressurizing and agitating the water to be treated into which hydrogen gas has been introduced. By repeating the pressure stirring step, the crushing step of crushing the gas-liquid mixed water into hydrogen-containing water containing fine bubbles, and the returning step of returning the hydrogen-containing water that has undergone the crushing step to the storage tank The hydrogen-containing water of the present invention was obtained.

  300 ml of this hydrogen-containing water was filled in a spout-equipped packaging container sterilized with silver ion water by the method shown in FIGS.

  In addition, when it was set as a product, it filled with hydrogen water and sealed with the cap so that air might not remain in the packaging container with a spout, but about the sample for the following measurement, 2 in a packaging container with a spout. .35 ml of air was left to remain, and the spout mouth was sealed with a seal rather than a cap.

  The hydrogen-containing water thus obtained is generated in 2.35 ml of the gas phase when one month has elapsed and 300 ml of hydrogen-containing water is irradiated with ultrasonic waves of 20 KHz and 100 W for 30 minutes by the method described above. The amount of hydrogen to be measured was measured. As a result, the hydrogen concentration in the gas phase of 2.35 ml was 21 ppm (W / V).

<Example 2>
In the same manner as in Example 1, hydrogen-containing water filled in a packaging container with a spout was produced. This hydrogen-containing water was taken out 5 months after filling the packaging container, sampled with 2 μ · water, the hydrogen content was determined by gas chromatography, and the hydrogen concentration was calculated to be 0.79 ppm.

  Subsequently, the spout-equipped packaging container filled with the hydrogen-containing water was immersed in a water tank of an ultrasonic cleaning apparatus, and ultrasonic vibration was irradiated for 30 minutes at an output of 20 KHz and 100 W through the water in the vibrating water tank. .

  And when the dissolved hydrogen was measured again, it was 1.76 ppm.

<Comparative Example 1>
Hydrogen-containing water filled in a spouted packaging container was purchased from Company A. One month after the production date, hydrogen-containing water was taken out and the dissolved hydrogen was measured in the same manner as in Example 2. As a result, it was 0.6 ppm.

  Next, in the same manner as in Example 2, after irradiating an ultrasonic wave of 20 kHz and 100 W for 30 minutes, the dissolved hydrogen was measured again, and it was 0.83 ppm.

  From this result, it can be seen that the hydrogen-containing water of Example 2 has a greater amount of dissolved hydrogen after ultrasonic irradiation than the product of Company A. From this, it can be seen that the hydrogen-containing water of Example 2 contained a larger amount of fine bubble-like hydrogen gas, and the amount of dissolved hydrogen was increased by dissolving the fine bubble-like hydrogen gas by ultrasonic irradiation. In addition, even if it is ingested into the body in a bubble state, the hydrogen gas in the form of fine bubbles is considered to be absorbed into the body due to its small molecular structure.

H Hydrogen gas W Raw material water HW Gas-liquid mixed water NHW Hydrogen-containing water 100 Production apparatus 101 Storage tank 102 Raw water supply pipe 103 Filter 104 Pump 105 Water to be treated pipe 106 Hydrogen gas supply pipe 107 Motor 108 Nano bubble generator 109 Connecting pipe 110 Return pipe 111 Hydrogen extraction pipe 112 Filter

Claims (5)

  In hydrogen-containing water containing fine hydrogen gas bubbles in addition to hydrogen gas dissolved in water, when 300 ml of the hydrogen-containing water is irradiated with ultrasonic waves of 20 KHz and 100 W for 30 minutes, 2.35 ml of gas Hydrogen-containing water, wherein the amount of hydrogen generated in the phase is 15 ppm (W / V) or more. A hydrogen gas supply step for introducing hydrogen gas into the water to be treated drawn from the storage tank;
A pressure stirring step of pressurizing and stirring the water to be treated into which hydrogen gas has been introduced to form a gas-liquid mixed water;
A crushing step of crushing the gas-liquid mixed water into hydrogen-containing water containing fine bubbles;
Returning the hydrogen-containing water that has undergone the crushing step to the storage tank,
By circulating the hydrogen-containing water in the storage tank as the water to be treated and repeatedly performing the steps, the hydrogen-containing water stored in the storage tank is 20 KHz, 100 W with respect to 300 ml of the hydrogen-containing water. A method for producing hydrogen-containing water, characterized in that the amount of hydrogen generated in a 2.35 ml gas phase when irradiated with 30 minutes of ultrasonic waves is 15 ppm (W / V) or more.   The method for producing hydrogen-containing water according to claim 2, wherein the pressurization of the raw material water in the pressure stirring step is performed at 0.2 MPa to 2.5 MPa.   The method for producing hydrogen-containing water according to claim 2 or 3, wherein the temperature of water containing hydrogen gas is adjusted to 10 to 40 ° C before the pressurizing and stirring step and / or before the crushing step.   The hydrogen-containing water finally obtained is sterilized or sterilized by non-heating sterilization or sterilization means, and the container made of hydrogen-impermeable material is sterilized with silver ion water, The method for producing hydrogen-containing water according to claim 2, wherein the sterilized or sterilized hydrogen-containing water is filled and sealed.