JP2018134633A - Hydrogen water, and production system and production method of the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly provide hydrogen water containing hydrogen gas, which is transformed into bubbles, at high concentration.SOLUTION: A production system of hydrogen water according to the present invention comprises: a bubble generation unit to which hydrogen gas and water are supplied and which generates fine air bubbles of hydrogen gas in water; a bubble collapsing unit which is connected to the bubble generation unit, allows water supplied from the bubble generation unit to pass, irradiates passing water with ultrasonic wave, and collapses fine air bubbles in water; and a storage unit which is connected to the bubble collapsing unit and stores water supplied from the bubble collapsing unit. The storage unit comprises a pressurizing port and a pressure reducing valve, pressure higher than atmospheric pressure is applied from the pressurizing port to water, and water is led out to the outside while the pressure is reduced by the pressure reducing valve to the atmospheric pressure. Hydrogen water containing hydrogen as ultra-fine air bubbles can quickly be taken out at high concentration by pressurizing/pressure reducing effect.SELECTED DRAWING: Figure 1

Description

  The present invention relates to hydrogen water, a hydrogen water production system, and a hydrogen water production method.

  In recent years, water in which hydrogen gas is dissolved, so-called hydrogen water, has attracted attention. Hydrogen water is used not only for drinking and cooking, but also used as hot water for baths by filling a bathtub. As a method for producing such hydrogen water, a method for producing hydrogen water from hydrogen generated by electrolyzing water (Patent Document 1) or a cartridge containing a metal having a reducing power such as magnesium is put into water. There is a method for producing hydrogen water (Patent Document 2).

  Also, a so-called hydrogen gas injection method in which a hydrogen gas cylinder is prepared and hydrogen water is blown into water to produce hydrogen water can produce a relatively large amount of hydrogen water continuously. Also, some hydrogen water production methods using hydrogen gas cylinders attempt to produce hydrogen water by making it into fine bubbles or ultra fine bubbles (Patent Document 3).

JP 2012-217882 A JP 2013-128882 A JP 2006-104474 A

  However, the electrolysis method or the method of introducing cartridges cannot produce high-concentration hydrogen water, and the hydrogen production method using a hydrogen gas cylinder can produce relatively high-concentration hydrogen water. However, it takes a long time to dissolve hydrogen to a desired concentration after injecting it, and it takes a long time to generate hydrogen bubbles with a desired particle size to a desired concentration even when bubbling. There was a problem.

  An object of the present invention is to solve the above-mentioned problems and to quickly provide hydrogen water containing a high concentration of bubbled hydrogen gas.

  (1) The hydrogen water production system according to the present invention is supplied with hydrogen gas and water, and generates a fine bubble of hydrogen gas in water, and is connected to the bubble generator, and the bubble A bubble crushing unit that passes hydrogen water supplied from the generation unit, irradiates the passing hydrogen water with ultrasonic waves, and crushes fine bubbles in the hydrogen water, and is connected to the bubble crushing unit, the bubble crushing unit The storage part which stores the hydrogen water supplied from is provided. The storage unit is connected to a lead-out path that applies a pressure higher than the atmospheric pressure to the stored hydrogen water and derives the stored hydrogen water to the outside while reducing the pressure to the atmospheric pressure.

  In such a hydrogen water production system, when bubbles containing hydrogen bubbles (hydrogen water), in which fine bubbles are generated in the bubble generation section, flow through a passage having a smaller diameter than the tank in the bubble collapse section, ultrasonic waves are generated. , The fine bubbles are converted into ultrafine bubbles, and the water containing the ultrafine bubbles is stored in the reservoir.

  Further, the hydrogen water stored in the storage part is increased in concentration by being applied with a pressure higher than the atmosphere by the pressurizing part, and is foamed while being reduced in pressure by the pressure reducing valve when led out to the outside. Derived without. As a result, the hydrogen bubble-containing water is derived by increasing the concentration of hydrogen in accordance with Henry's law in a state containing ultrafine bubbles.

  Therefore, according to the hydrogen water production system according to the present invention, hydrogen water containing hydrogen in a high concentration as ultrafine bubbles can be quickly taken out by the effect of pressure reduction.

  (2) In the hydrogen water production system described above, the hydrogen water may be derived without narrowing the flow path through which the depressurized hydrogen water passes. The inventor of the present invention has found that the hydrogen concentration is reduced by narrowing the path through which hydrogen water is decompressed and hydrogen is highly concentrated. Based on this knowledge, the hydrogen water can be derived while maintaining the hydrogen concentration by deriving the hydrogen water without narrowing the passage of the deriving path through which the depressurized hydrogen water passes.

  (3) In the hydrogen water production system described above, the lead-out path may lead out the hydrogen water without providing an obstruction that obstructs the flow in the flow path through which the decompressed hydrogen water passes. The inventor of the present invention has found that the hydrogen concentration is reduced if there is an obstacle that obstructs the flow in the hydrogen water flow path with respect to the hydrogen water that has been depressurized to increase the hydrogen concentration. . Based on this knowledge, the hydrogen water can be derived while maintaining the hydrogen concentration by deriving the hydrogen water without providing an obstacle in the deriving path through which the depressurized hydrogen water passes.

  (4) You may provide the circulation path in which the said bubble production | generation part, the said bubble crushing part, and the said storage part were integrated. If it does in this way, hydrogen water can be highly concentrated in a storage part, producing | generating the ultrafine bubble of hydrogen continuously. Therefore, it is possible to continuously take out hydrogen water that has been concentrated and taken out by the pressure and pressure reduction effect.

  (5) Hydrogen water according to the present invention is produced by (1) to (4). In this way, hydrogen water containing a high concentration of bubbled hydrogen gas is rapidly provided and contains ultrafine bubbles, so that the hydrogen concentration can be maintained over a long period of time.

  (6) In the method for producing hydrogen water according to the present invention, a bubble generation step for generating hydrogen gas fine bubbles in water, and hydrogen water supplied from the bubble generation unit are allowed to pass through. A bubble crushing step for irradiating ultrasonic waves to crush fine bubbles in hydrogen water, a storage step for storing hydrogen water connected to the crushing part and supplied from the bubble crushing part in a storage part, and the storage A pressurization step of applying a pressure higher than the atmospheric pressure to the hydrogen water stored in the section, and a depressurization deriving step of deriving the hydrogen water to the outside while being depressurized to the atmospheric pressure after the pressurization step.

  In such a method for producing hydrogen water, hydrogen bubble-containing water, in which fine bubbles are generated in the bubble generation step, is irradiated with ultrasonic waves in the bubble crushing step, and the fine bubbles are converted into ultrafine bubbles. The contained hydrogen water is stored in the storage step.

  Then, the hydrogen water stored in the storage part is increased in concentration by being applied with a pressure higher than the atmosphere in the pressurization step, and is depressurized by the depressurization valve when being led to the outside in the depressurization deriving step. While being derived. Thereby, the hydrogen bubble-containing water is derived by increasing the concentration of hydrogen in accordance with Henry's law in a state containing ultrafine bubbles.

  Therefore, according to the method for producing hydrogen water according to the present invention, hydrogen water containing hydrogen in a high concentration as ultrafine bubbles can be quickly taken out due to the pressure reduction effect.

  (7) The bubble generation step, the bubble collapse step, and the storage step may be repeated while performing the pressurization step. In this way, it is possible to increase the concentration in the reservoir while continuously generating ultrafine bubbles. Therefore, the hydrogen water that has been increased in concentration by the pressure-depressurization effect can be continuously taken out, or can be taken out for a short time at a desired timing.

  (8) The method for producing hydrogen water according to the present invention may include a storage step for storing the hydrogen water after the decompression derivation step. In this way, hydrogen water containing a high concentration of bubbled hydrogen gas is quickly provided, and the hydrogen water can be stored for a long period of time because it contains ultrafine bubbles.

  An object of the present invention is to solve the above-mentioned problems and to quickly provide hydrogen water containing a high concentration of bubbled hydrogen gas.

1 is a functional block diagram of a hydrogen water production system according to an embodiment of the present invention. It is a functional block diagram of the bubble containing liquid manufacturing apparatus of the manufacturing system of hydrogenous water in FIG. 2 shows a bottomed member of the bubble generating nozzle of the bubble generating unit in FIG. 2, (A) is a side view of the bottomed member, (B) is a bottom view of the bottomed member, and (C) is 2C-2C of (A). (D) is a perspective view of a bottomed member. The cylindrical member of the bubble generation nozzle of the bubble generation part in FIG. 2 is shown, (A) is a side view of a cylindrical member, (B) is a bottom view of a cylindrical member, (C) is 3C-3C of (A). (D) is a perspective view of a cylindrical member. It is the schematic for demonstrating operation | movement of the bubble production | generation nozzle of the bubble production | generation part in FIG. The bubble collapse part of the bubble containing liquid manufacturing apparatus in FIG. 2 is shown, (A) is a side view of a bubble collapse part, (B) is a front view of a bubble collapse part. Sectional drawing of 6-6 'of the bubble crushing part in FIG. 6 (B) is shown. It is a functional block diagram which shows the storage part in FIG. It is a flowchart which shows the cleaning method of the hydrogenous water which concerns on this invention. It is a figure which shows the experimental result of transition of the hydrogen concentration with respect to the manufacture time of the hydrogen water manufactured by the bubble containing liquid manufacturing system of the hydrogen water manufacturing system which concerns on embodiment of this invention. It is a figure which shows the experimental result of transition of the hydrogen concentration after having led out to the container open | released by air about the hydrogen water manufactured with the manufacturing system of the hydrogen water which concerns on embodiment of this invention.

  A hydrogen water production system and a hydrogen water production method according to an embodiment of the present invention will be described with reference to the drawings.

  In the present embodiment, a case where hydrogen water is generated by bubbling a single gas of hydrogen into pure water by the hydrogen water production system 1 will be described, but the water contains impurities such as ground water and tap water, Mixed water with other liquids including seawater may be used, and hydrogen gas may be mixed with other gases. The produced hydrogen water is mainly assumed to be used as a beverage, but may be used for other purposes.

  As shown in FIG. 1, a hydrogen water production system 1 includes a hydrogen supply device 10 that supplies hydrogen gas, a pure water supply device 30 that supplies pure water, and a bubble-containing liquid production device that bubbles hydrogen into water. 20 is included. In the hydrogen water production system 1, the hydrogen supply device 10 and the pure water supply device 30 are connected to the bubble-containing liquid production device 20. The hydrogen bubble-containing water produced by the hydrogen water production system 1 is led out to the outside via a lead-out path 203 described later.

  The hydrogen supply device 10 includes a hydrogen gas cylinder in which a well-known gas cylinder is filled with hydrogen gas, and a hydrogen supply monitoring device. The hydrogen gas cylinder is filled with hydrogen gas at a high pressure of 14.7 MPa, for example. The hydrogen gas cylinder is connected to a gas introduction unit 202 of the bubble-containing liquid production apparatus 20 described later via a hydrogen supply monitoring apparatus (see FIG. 2). The hydrogen supply monitoring device monitors whether hydrogen gas is supplied to the bubble-containing liquid production device 20 at a predetermined pressure. For example, when hydrogen leaks are found, the leaks can be notified by sound, lighting of lights, buzzer notification, or the like.

  The pure water supply device 30 is a well-known pure water generating device, and includes a reverse osmosis membrane and continuously generates pure water. The pure water supply device 30 includes a storage tank and can store the pure water produced continuously and supply it appropriately. The pure water supply device 30 is connected to a liquid introduction unit 201 of a bubble-containing liquid production apparatus 20 described later (see FIG. 2), and pure water is supplied from the pure water supply apparatus 30 to the bubble-containing liquid production apparatus 20. The

  FIG. 2 shows a functional block diagram of the bubble-containing liquid production apparatus 20 of the hydrogen water production system 1. The bubble-containing liquid manufacturing apparatus 20 is supplied with pure water from the pure water supply apparatus 30, generates fine bubbles in the supplied pure water, and converts the fine bubbles into ultrafine bubbles having a smaller particle diameter. Hydrogen bubble-containing water containing bubbles is produced.

  The bubble-containing liquid production apparatus 20 mainly includes a bubble generation unit 230 that generates fine bubbles in pure water, and a bubble crushing unit 240 that collapses the fine bubbles in hydrogen bubble-containing water supplied from the bubble generation unit 230. The storage unit 250 stores the hydrogen bubble-containing water supplied from the bubble crushing unit 240. The bubble generation unit 230, the bubble crushing unit 240, and the storage unit 250 are connected to each other, and form a circulation path r2 for circulating the hydrogen bubble-containing water.

  The bubble-containing liquid production apparatus 20 includes a liquid introduction part 201 for introducing pure water from the pure water supply apparatus 30, a gas introduction part 202 for introducing hydrogen from the hydrogen supply apparatus 10, and hydrogen bubble-containing water outside the apparatus. A lead-out path 203 for taking out water, a cooling part 204 for supplying cooling water to each part, a pressurizing part 205 for pressurizing a storage part 250 (to be described later) of the bubble-containing liquid manufacturing apparatus 20, and hydrogen outside the bubble-containing liquid manufacturing apparatus 20 And a discharge unit 206 for discharging bubble-containing water.

  Each part of the bubble-containing liquid manufacturing apparatus 20 is managed by a control unit 299 that centrally manages the bubble-containing liquid manufacturing apparatus 20. The control unit 299 may control the bubble-containing liquid manufacturing apparatus 20 in cooperation with an external control device or the like. Moreover, each part of the bubble containing liquid manufacturing apparatus 20 may be controlled by another control apparatus etc. In addition, each part of the bubble-containing liquid manufacturing apparatus 20 is connected by piping or the like, and part thereof is connected through a valve, and the valve is opened and closed by the control unit 299.

[Bubble generator]

  The bubble generation unit 230 includes a bubble generator 231 connected to the storage unit 250 and a pump 232 connected to the bubble generator 231 and supplying hydrogen bubble-containing water to the bubble crushing unit 240. The bubble generator 231 is connected to the gas introduction unit 202, and the bubble generator 231 is introduced with pure water through the storage unit 250 and hydrogen from the gas introduction unit 202 as described later. . The pump 232 sucks the hydrogen bubble-containing water from the storage unit 250 through the bubble generator 231 and discharges the hydrogen bubble-containing water containing the fine bubbles generated by the bubble generator 231 toward the bubble crushing unit 240. .

  The bubble generator 231 is a so-called bubble generation nozzle and will be described with reference to FIGS. The bubble generation nozzle includes a bottomed tubular bottomed member 233 having a circular cross-section with a bottom 233a formed on one end side, and a cylindrical tubular member 234. When the cylindrical member 234 is fitted from the other end side of the bottomed member 233, a space having a circular cross section is formed as the gas-liquid mixing chamber 231m. Hydrogen and pure water flow into the gas-liquid mixing chamber 231m and are mixed to generate hydrogen bubble-containing water that is a gas-liquid mixture and contains fine bubbles.

  3 shows a bottomed member 233, FIG. 3A is a side view of the bottomed member 233, FIG. 3B is a bottom view of the bottomed member 233, and FIG. 3C is a view of FIG. 3C-3C ′ is a cross-sectional view, and FIG. 3D is a perspective view of the bottomed member 233. 4 shows the tubular member 234, FIG. 4A is a side view of the tubular member 234, FIG. 4B is a bottom view of the tubular member 234, and FIG. 4C is FIG. 4C-4C ′, FIG. 4D is a perspective view of the tubular member 234. Further, FIG. 5 is a schematic side sectional view for explaining the operation of the bubble generation nozzle, in which the bubble generation nozzle is indicated by a solid line and the other configuration is indicated by a broken line.

  As shown in FIG. 3, the bottomed member 233 includes a disc-shaped bottom portion 233a, an annular first side wall portion 233b continuous with the bottom portion 233a, and an annular second shape continuous with the first side wall portion 233b. Side wall part 233c. The bottomed member 233 has a gas supply hole 233d penetrating the second side wall portion 233c. The bottomed member 233 has a liquid supply hole 233e for supplying pure water in the bottom portion 233a. As shown in FIG. 3B, the liquid supply hole 233e is provided at the center of the bottom 233a.

  As shown in FIG. 3C, the bottom portion 233a forms a truncated cone-shaped first truncated cone space 233f. Further, the bottom portion 233a, the first side wall portion 233b, and the second side wall portion 233c form a columnar first columnar space 233g. Further, the second side wall portion 233c includes a second cylindrical space 233h having a slightly smaller diameter than the first cylindrical space 233g, and a third cylindrical space 233i having a larger diameter than the first cylindrical space 233g. And form.

  The first truncated conical space 233f is continuous with the liquid supply hole 233e at its truncated surface, and the first truncated cone space 233f is continuous with the first cylindrical space 233g at its bottom surface. That is, the first truncated conical space 233f extends from the liquid supply hole 233e to the first cylindrical space 233g, and extends from the inner peripheral surface of the liquid supply hole 233e to the inner peripheral surface of the first side wall portion 233b. It is comprised from the taper surface which continues.

  As shown in FIG. 4, the tubular member 234 includes an annular first side peripheral portion 234a and a second side peripheral portion 234b. The second side peripheral portion 234b includes a first side peripheral region 234c, a second side peripheral region 234d having a larger diameter than the first side peripheral region 234c, and a second side peripheral region 234d having a smaller diameter than the second side peripheral region 234d. 3 side peripheral regions 234e. The second side peripheral region 234d of the first side peripheral portion 234a and the second side peripheral portion 234b has the same diameter and is sized to fit in the second cylindrical space 233h of the bottomed member 233. .

  As shown in FIG. 4C, the first side peripheral portion 234a forms a second truncated conical space 234f having a truncated cone shape whose diameter is reduced from one to the other. The first side peripheral part 234a and the second side peripheral part 234b form a columnar fourth cylindrical space 234g extending from one side to the other side. The second side peripheral portion 234b forms a third truncated conical space 234h whose diameter increases from one to the other.

  The second truncated cone space 234f, the fourth cylindrical space 234g, and the third truncated cone space 234h are continuous in that order, and the truncated surface of the second truncated cone space 234f, The bottom surface and the top surface of the cylindrical space 234g and the truncated surface of the third truncated conical space 234h are connected with the same diameter, and the second truncated conical space 234f and the fourth cylindrical space are connected. 234g and the third truncated conical space 234h have the same central axis.

  The first side peripheral portion 234a of the cylindrical member 234 has four concave portions 234i formed in a spiral shape on the outer periphery thereof. The recesses 234i are formed at equal intervals and extend from one side to the other while being twisted. A plurality of recesses are preferably formed, and each recess is preferably formed at equal intervals.

  The bottomed member 233 and the cylindrical member 234 are formed by cutting a stainless steel of SUS316. However, the bottomed member 233 and the cylindrical member 234 may be made of other metals. In addition, other materials such as glass, ceramic, resin, and ceramics may be used, and not only cutting processing but also processing according to other materials such as injection molding processing and press molding processing is performed. Also good.

  As shown in FIG. 5, the bubble generating nozzle is fitted into the bottomed member 233 by press-fitting the tubular member 234 so that the first side peripheral portion 234a is at the back. The second side peripheral region 234d and the first side peripheral portion 234a of the side peripheral portion 234b are in contact with the inner surface of the first side wall portion 233b over the entire circumference in the second cylindrical space 233h of the bottomed member 233. .

  The first side peripheral region 234c of the second side peripheral portion 234b of the cylindrical member 234 communicates with the gas supply hole 233d of the bottomed member 233 in cooperation with the second side wall portion 233c of the bottomed member 233. An annular space 231s is formed. The recess 234i serves as a gas supply path 231t extending from the annular space 231s to the gas-liquid mixing chamber 231m and extending spirally.

  The first truncated conical space 233f, the first cylindrical space 233g, and the second truncated conical space 234f form a gas-liquid mixing chamber 231m. In the gas-liquid mixing chamber 231m, the first truncated conical space 233f is continuous with the first cylindrical space 233g at the bottom, and the second truncated conical space 234f is opposite to the first truncated conical space 233f at the bottom. By continuing to the first cylindrical space 233g from the side, it is formed in a shape like a substantially rugby ball that is reduced in diameter from both sides of the cylinder. Therefore, the gas-liquid mixing chamber 231m has a circular sectional space throughout.

  The first truncated cone space 233f, the first cylindrical space 233g, the second truncated cone space 234f, the fourth cylindrical space 234g, and the third truncated cone space 234h have the same central axis. . The truncated surface of the second truncated conical space 234f has a larger diameter than the liquid supply hole 233e, and the bottom surface of the first truncated cone space 233f and the second truncated cone space 234f, and the first cylindrical space. The top surface and the bottom surface of 233g have substantially the same hole diameter. Here, the fourth cylindrical space 234g and the third truncated conical space 234h function as the ejection holes 231u from which the gas-liquid mixture is ejected.

  The gas supply path 231t allows the hydrogen that forms a spiral flow along the side circumference of the gas-liquid mixing chamber 231m from the position that becomes the side circumference of the bottom surface of the second truncated conical space 234f to the first cylindrical space 233g. The supplied hydrogen forms a flow rotating in a spiral shape with the same center axis as the second truncated conical space 234f. As a result, hydrogen that forms a spiral flow is supplied from the side periphery of the second truncated conical space 234f along the side periphery of the first cylindrical space 233g.

  The inner wall of the gas-liquid mixing chamber 231m has a concavo-convex shape (for example, a so-called crusted skin, the same one as a ceramic sprayed skin, or a protruding shape). These do not need to be applied to the entire inner wall, and may be formed only partially.

  Next, the operation of the bubble generation nozzle will be described. In addition to the bubble generation nozzle indicated by the solid line, FIG. 5 shows a liquid introduction pipe 235 connected to one end side of the bottomed member 233 of the bubble generation nozzle and the other end side of the cylindrical member 234 of the bubble generation nozzle. It is the figure which showed the gas-liquid mixture derivation | leading-out pipe | tube 236 connected, and the gas introduction pipe | tube 237 connected to the gas supply hole 233d of the bottomed member 233 of a bubble production | generation nozzle with the broken line.

  The liquid introduction pipe 235 has an internal thread, and the internal thread is screwed with an external thread cut in the bottom portion 233 a of the bottomed member 233. The gas-liquid mixture outlet tube 236 is externally threaded, and the external thread is screwed with the internal thread cut in the third cylindrical space 233 i of the bottomed member 233. The bottomed member 233 is provided with a horizontal surface on the outer periphery so that the bottomed member 233 can be held by a spanner when screwed with these other tubes.

  The liquid introduction pipe 235 is connected to the storage unit 250, and pure water stored in the storage unit 250 is sucked and introduced by the pump 232. In addition, the gas-liquid mixture outlet tube 236 is connected to the bubble crushing portion 240, and a circulation path r2 is formed through the bubble generation nozzle.

  The gas introduction pipe 237 is connected to the gas introduction section 202 via a throttle valve (not shown), and a check is made so that bubbles can be stably generated inside the gas introduction pipe 237. A valve 238 is provided.

  First, pressurized pure water is supplied from the liquid introduction pipe 235 to the gas-liquid mixing chamber 231m through the liquid supply hole 233e. At this time, the pressurized pure water flows along a line connecting the liquid supply hole 233e, the first truncated conical space 233f, and the ejection hole 231u, and then a part thereof is ejected while expanding from the ejection hole 231u. .

  Here, hydrogen flows from the gas introduction pipe 237 into the gas-liquid mixing chamber 231m through the annular space 231s and the gas supply path 231t. The pure water supplied from the liquid supply hole 233e and the hydrogen supplied from the gas supply path 231t into the gas-liquid mixing chamber 231m flow along the central axis in the gas-liquid mixing chamber 231m, and other than the gas-liquid mixing chamber 231m. A stream of pure water and hydrogen that circulates around the end side, flows around the side of the gas-liquid mixing chamber in a direction opposite to that of the central axis, and returns to the central axis again at one end of the gas-liquid mixing chamber 231m. A circulation path flow is formed. Further, since the gas-liquid mixing chamber 231m is a substantially cylindrical space, a high-speed circulation path flow can be easily formed, and the above-described operation can be easily obtained.

  Further, the hydrogen flowing in from the gas supply hole 233d is circulated around the central axis in the annular space 231s, and is mixed from the hydrogen supply path toward the first truncated conical space 233f of the gas-liquid mixing chamber 231m. It is supplied into the chamber 231m.

  Thereby, the degree of vacuum in the gas-liquid mixing chamber 231m is improved, so that the amount of hydrogen flowing in from the gas supply hole 233d can be further increased, and the generation of bubbles is promoted. By such a series of operations, fine bubbles such as microbubbles are continuously generated.

  Further, since the gas supply path 231t is formed in a spiral shape around the central axis of the second truncated conical space 234f, the hydrogen supplied from the gas supply path 231t is circular while circulating around the spiral shape. The flow along the circumferential surface of the space of the gas-liquid mixing chamber 231m having the cross-sectional shape is formed. Thereby, in the gas-liquid mixing chamber 231m, a screw-like circulation path flow rotating in the circumferential direction is formed.

  And since the uneven | corrugated shape is formed in the inner wall of the gas-liquid mixing chamber 231m, the gas-liquid mixture which is the mixed fluid of the pure water and hydrogen which is flowing through the high-speed circulation path collides with the uneven shape. As a result, the hydrogen in the gas-liquid mixing chamber 231m can be further subdivided, the high-speed circulation path flow can be accelerated, and the degree of vacuum in the gas-liquid mixing chamber 231m can be increased.

  The hydrogen supplied from the gas supply path 231t is subdivided by the turbulent flow generated at the boundary between the gas supply path 231t and the gas-liquid mixing chamber 231m, and the first truncated conical space 233f and the second truncated cone are separated. In the circulation path flow accelerated by the conical space 234f, it is stirred and sheared, collides with the uneven shape of the inner wall of the gas-liquid mixing chamber 231m, and partly collides with pressurized pure water supplied from the liquid supply hole 233e. The gas-liquid mixture which is further subdivided by the turbulent flow generated at the time and collides with the external hydrogen and / or external pure water which has flowed in at the ejection hole 231u and further refined and contains fine bubbles such as microbubbles. Is ejected from the second truncated conical space 234f as hydrogen bubble-containing water.

  The bubble generator is not limited to such a nozzle type, and may have other configurations, and may have, for example, a configuration and a function of swirling, crushing, farming, and foaming (pressurization / decompression) ( For example, refer to JP2015-186871A). Further, the arrangement of the functional block diagram may be exchanged between the pump 232 and the bubble generator 231, and the pump 232 may be connected upstream and the bubble generator 231 may be connected downstream. Accordingly, the bubble generation nozzle may be supplied by pressurizing the liquid from the pump 232 and supplying the hydrogen bubble-containing water to the bubble collapse portion.

[Bubble collapsed part]

  6 shows the bubble crushing part 240 of the bubble-containing liquid production apparatus 20, FIG. 6 (A) shows a side view of the bubble crushing part 240, and FIG. 6 (B) shows a front view of the bubble crushing part 240. Moreover, FIG. 7 shows the sectional side view which cut | disconnected the bubble collapse part by 7-7 'of FIG. 6 (B).

  The bubble crushing part 240 is connected to the bubble generating part 230, connected to the other part to the storage part 250, and includes a linearly extending passage 241 and an exterior body 242 that covers the periphery of the passage 241. A two-layer structure having an intermediate space 240 s from the body 242 is formed. The bubble crushing portion 240 is arranged so that the passage 241 extends in the horizontal direction. The passage 241 allows the hydrogen bubble-containing water produced by the bubble generation unit 230 to pass toward the storage unit 250.

  The exterior body 242 is provided with a plurality of ultrasonic transducers 243, and each ultrasonic transducer 243 emits ultrasonic waves toward the passage 241. The intermediate space 240s between the passage 241 and the exterior body 242 is filled with the propagation liquid, and the ultrasonic wave irradiated from the ultrasonic transducer 243 is propagated into the passage 241 through the propagation liquid, The bubbles of water containing hydrogen bubbles flowing inside are ultrasonically crushed.

  The propagation liquid is cooling water supplied from the cooling unit 204, is introduced into the intermediate space 240s from the propagation liquid introduction port 244 provided in the exterior body 242, and is derived from the propagation liquid outlet 245 (see FIG. 8). ). Here, since the propagation liquid introduction port 244 is provided on the lower side of the exterior body 242 and the propagation liquid outlet port 245 is provided on the upper side of the exterior body 242, the propagation liquid is introduced from the lower side of the exterior body 242. And derived from the upper side of the exterior body 242. Thereby, cooling water is supplied so that air may be expelled from the intermediate space. In the bubble crushing section 240, the hydrogen bubble-containing water that passes through is heated by the ultrasonic waves that are propagated through the propagation liquid. However, the propagating liquid also has an action of cooling the bubble crushing portion 240, and the temperature of the hydrogen bubble-containing water passing through the bubble crushing portion can be adjusted by the flow rate of the cooling liquid.

  In this embodiment, the passage 241 of the bubble crushing portion 240 is a pipe made of a fluororesin of PFA (polytetrafluoroethylene / perfluoroalkyl vinyl ether copolymer), but a PVC (polyvinyl chloride) pipe or the like is used. It may be formed from a pipe used as a material, other resin may be used as a material, or a metal having no problem in terms of hygiene may be used as a material.

  As a result, the passage 241 has a circular cross section, extends in a columnar shape with the same diameter, and forms a flow path having a very small cross section as compared with the tank. The passage 241 is connected to be interposed between the bubble generation unit 230 and the storage unit 250, and the hydrogen bubble-containing water supplied from the bubble generation unit 230 flows to the storage unit 250 in a state of being filled inside the passage 241. It is.

  The exterior body 242 is made of stainless steel and includes a side circumferential member 246 extending in a hexagonal column shape having a regular hexagonal cross section, and a pair of disk-shaped planar members 247 sandwiching the side circumferential member 246 from both sides in the extending direction. . Both planar members 247 are fitted with the passage 241 at the center, and fix the passage 241 so that the passage 241 extends on the hexagonal central axis of the side circumferential member 246. Thus, an intermediate space 240s is formed on the outside of the passage 241 and the side peripheral member 246 of the exterior body 242, and the outer periphery of the passage 241 and each surface of the hexagonal side peripheral member 246 form a similar space. ing.

  The exterior body 242 has an ultrasonic transducer 243 attached to each surface of the hexagonal column. The ultrasonic transducers 243 are provided in two stages in the extending direction of the passage 241, and the bubble generation unit 230 side is the front ultrasonic transducer group, and the storage unit 250 side is the rear ultrasonic transducer group. It is said. The ultrasonic transducer group in each stage is composed of six ultrasonic transducers 243 provided radially from the central axis of the passage 241.

  The two ultrasonic transducers 243 facing each other form a pair of oscillator pairs, and the six ultrasonic transducers 243 form three pairs of oscillators. Each ultrasonic transducer can be adjusted in frequency and output by the control unit 299. In the present embodiment, the 12 ultrasonic transducers 243 irradiate ultrasonic waves with the same frequency and the same output, respectively.

  Each of these six ultrasonic transducers 243 irradiates ultrasonic waves toward a central point of the passage 241. Therefore, each ultrasonic transducer 243 emits ultrasonic waves from different positions in different radial directions and radially inward toward the center of the passage.

  Thereby, a uniform crushing field is formed in the passage 241 and the hydrogen bubble-containing water flowing through the passage 241 is suppressed from being obstructed by the ultrasonic waves. In particular, each of the pair of oscillators oscillates an ultrasonic wave from the facing position toward the facing direction. Thereby, an ultrasonic crushing field is formed from the center of the passage 241, the hydrogen bubble-containing water passing through the passage 241 is crushed, and ultrafine bubbles having a uniform particle size are generated without unevenness.

  In the bubble crushing portion 240, ultrasonic waves are irradiated from a plurality of directions, and an ultrasonic crushing field is formed at a location where the ultrasonic waves are concentrated. Therefore, in the present embodiment, each ultrasonic transducer group forms an ultrasonic crush field in the passage 241.

  Even if all of the fine bubbles are not crushed in the ultrasonic crushing field formed by the ultrasonic transducer group at the front stage, the ultrasonic crushing field formed by the ultrasonic transducer group at the rear stage crushes the remaining fine bubbles. Therefore, in the bubble crushing part 240 according to the present embodiment, the fine bubbles can be reliably crushed and uniform ultrafine bubbles can be generated. In the present embodiment, the bubble crushing unit 240 generates so-called ultrafine bubbles as ultrafine bubbles.

  The bubble crushing part 240 according to the embodiment of the present invention forms an ultrasonic crushing field, and crushes the fine bubbles in the pure water and converts them into the ultrafine bubbles. The ultrasonic crushing field is formed by continuously irradiating ultrasonic waves, and ultraviolet rays are generated in the ultrasonic crushing field. Thereby, the pure water which passes an ultrasonic crushing field can acquire the bactericidal effect by an ultraviolet-ray.

  Furthermore, in the bubble crushing part 240, an infinite number of vacuum bubbles are generated by cavitation in the liquid by irradiating the pure water with ultrasonic waves forming an ultrasonic crushing field. When this vacuum bubble collapses by repeated compression and expansion, an ultrahigh temperature and high pressure reaction field is formed. In this reaction field, the bactericidal effect of sterilizing general living bacteria, Legionella bacteria, Escherichia coli and the like can be obtained by breaking the cell walls of the bacteria by rupturing the vacuum bubbles.

[Reservoir]

  FIG. 8 shows a functional block diagram of the storage unit 250. As shown in FIG. 8, the storage unit 250 mainly includes a tank container 251 and an exterior container 252 that covers the tank container 251. The tank container 251 forms a storage space 250s having a predetermined volume for storing the hydrogen bubble-containing water.

  The tank container 251 is made of PVC as a columnar shape and has a completely sealed structure. Thereby, even if the trace gas of hydrogen generated at the time of ultrasonic crushing of the bubble crushing part 240 flows into the storage part 250, it does not come into contact with the atmosphere. Further, since the tank container 251 has a sealed structure, the pressure in the storage unit 250 can be controlled.

  The tank container 251 stores hydrogen bubble-containing water, and the hydrogen bubble-containing water tends to diffuse downward as the particle size of the bubble decreases. Therefore, in the present embodiment, a UFB region in which the existence of ultra fine bubbles is dominant is formed below the storage space 250s of the tank container 251 and UFB + MB in which ultra fine bubbles and micro bubbles are mixed is formed on the upper side. A region is formed, and an MB region in which the presence of microbubbles is dominant is formed above the region. In each of these regions, the position in the tank container 251 varies depending on the amount of liquid stored and the operation status of the apparatus.

  The reservoir 250 further includes a liquid inlet 250a connected to the liquid inlet 201, a bubble-containing liquid inlet 250b connected to the bubble crusher 240, a recursive outlet 250c connected to the bubble generator 230, A bubble-containing liquid outlet 250d connected to the outlet path 203, a outlet 250e connected to the outlet 206, and a pressure outlet 250f connected to the pressure part 205 are provided, and these are the liquid in the tank container 251. Or it is provided so that it may become a gas passage.

  The liquid inlet 250 a is mainly formed of a cylindrical pipe, communicates with the tank container 251 from the upper surface of the tank container 251, and introduces the stock solution from the liquid introduction unit 201 to the top surface position of the tank container 251. As a result, pure water is supplied from above the storage space 250s. The pressurizing port 250f is mainly composed of a cylindrical pipe, and extends from the upper surface of the tank container 251 to the top surface in the tank container 251. The pressure from the pressurizing unit 205 is reduced to the storage space 250s of the tank container 251. Apply inside.

  The bubble-containing liquid inlet 250b is mainly composed of a cylindrical pipe, extends from the upper surface of the tank container 251 to a half height position from the bottom surface in the tank container 251, and contains a second hydrogen bubble. Water is supplied from the upper side of the tank container 251.

  The pipe of the bubble-containing liquid introduction port 250b extends in the vertical direction, is bent downward in the horizontal direction, and is formed in an L shape, and discharges hydrogen bubble-containing water in the horizontal direction. Thereby, the hydrogen bubble-containing water receives the discharge pressure in the horizontal direction and is stirred in the storage space 250s. However, since the hydrogen bubble-containing water does not receive the discharge pressure in the vertical direction, it does not prevent the bubbles having a small particle diameter from increasing in concentration below the storage space.

  The recursion outlet 250c is mainly formed of a cylindrical pipe, extends from the bottom of the tank container 251 to a height position of ¼ from the bottom in the tank container 251 and is 1/4 from the bottom of the tank container 251. The hydrogen bubble-containing water at the height is led out to the circulation path r2, and the hydrogen bubble-containing water is returned to the gas-liquid mixer 131.

  The pipe of the recursion outlet 250c extends in the vertical direction, is bent in the horizontal direction at the top, and is formed in an inverted L shape, and sucks hydrogen bubble-containing water in the horizontal direction. Thereby, the hydrogen bubble-containing water receives suction pressure in the horizontal direction and is stirred in the storage space 250s. However, since the hydrogen bubble-containing water does not receive the suction pressure in the vertical direction, it does not prevent the bubbles having a small particle diameter from increasing in concentration below the storage space.

  The bubble-containing liquid outlet 250d is mainly composed of a cylindrical pipe and is provided as a bottom valve at the bottom of the tank container 251 to take out hydrogen bubble-containing water from the bottom of the tank container 251. The bubble-containing liquid outlet 250d is connected to the outlet path 203 via a pressure reducing valve (pressure reducing valve) 253.

  As a result, the hydrogen bubble-containing water pressurized in the storage space 250s is led out to the lead-out path 203 while being decompressed via the pressure reducing valve 253, so that the hydrogen bubble containing water is further concentrated from the storage space 250s. Water can be taken out without foaming. The pressure reducing valve 253 may be a known pressure reducing valve such as a direct acting pressure reducing valve or a pilot-actuated pressure reducing valve.

  The discharge port 250e is mainly formed of a cylindrical pipe, and is provided as a bottom valve on the bottom surface in the tank container 251 to discharge the hydrogen bubble-containing water from the bottom of the tank container 251.

  Further, the storage unit 250 is provided with three water level sensors 254, 255, and 256. The first water level sensor 254 is provided at a height of 1/3 from the bottom of the tank container 251 and senses that the storage space 250s is filled with pure water up to 1/3. The second water level sensor 255 is provided at a height of 7/10 from the bottom of the tank container 251 and senses that the storage space 250s is filled with pure water up to 7/10. The third water level sensor 256 is provided at a height position of 4/5 from the bottom of the tank container 251, and senses that the storage space 250s is filled with pure water up to 8/10. As will be described later, the control unit 299 controls the flow rate of each inlet and outlet provided in the storage unit 250 based on whether these water level sensors are sensed or non-sensed, and hydrogen bubbles in the storage space 250s. Adjust the water content.

  Further, the storage unit 250 is provided with a pressure transmitter 257 for measuring pressure and a vent filter 258 for opening the storage space 250s in the tank container to atmospheric pressure. The pressure transmitter 257 is provided in the tank container 251 and is electrically connected to the control unit 299, and can measure the pressure in the storage space 250s. The vent filter 258 is provided in the tank container 251 and is electrically connected to the control 199, and makes it possible to adjust the pressure in the storage space 250s while securing a ventilation path from the storage space 250s.

  In the present embodiment, the tank container 251 is made of PVC (polyvinyl chloride) as a material, and the upper part is made into a completely sealed structure by resin welding or adhesion. Since the tank container 251, that is, the storage unit 250 has a sealed structure, the storage space 250 s is isolated from the atmosphere, and the storage space 250 s can be pressurized by the pressurization unit 205.

  The vent filter 258 can also adjust the pressure of the pressurized storage space 250s. The control unit 160 measures the pressure in the storage space 250 s by the pressure transmitter 257 and adjusts the pressure in the storage space 250 s to a predetermined value by the pressurization unit 205 and the vent filter 258. In the present embodiment, the pressurizing unit 205 can pressurize the storage space 250 s to about 0.4 MPa to 0.6 MPa.

  The lead-out path 203 to which the pressure reducing valve 253 is connected is made of a cylindrical pipe and extends with the same inner diameter so as to maintain the cross-sectional dimension of the flow path. Thereby, hydrogen water is derived without narrowing the deriving path. As long as the flow path is maintained, the lead-out path is not limited to a straight line, and may be curved and extended. The lead-out path may extend so that the cross-sectional dimension of the flow path is enlarged. The lead-out path 203 is connected to the container so as to lead the hydrogen water stored in the storage unit 250 to a container that is released to the atmosphere.

  In the bubble-containing liquid manufacturing apparatus 20 according to the present embodiment, the bubble generation unit 230, the bubble crushing unit 240, and the storage unit 250 are separated. As a result, the bubble generating unit 230 and the bubble crushing unit 240 continuously supply a certain amount of hydrogen bubble-containing water having a uniform particle size without being affected by the capacity of the storage unit 250, and the hydrogen bubble-containing water is stored in the storage unit. Since it is stored in 250, it is suppressed that the bubble aggregates in the storage part 250. FIG.

  In other words, since ultrafine bubbles with different particle sizes are aggregated by storage, bubbles having ultrafine particle sizes generated by conventional ultrasonic crushing are not uniform in particle size. However, according to the bubble-containing liquid manufacturing apparatus 20 of the present embodiment, bubbles having a uniform particle size are generated and can be stored without agglomeration.

  In addition, the ultrafine particle bubbles have different zeta potentials depending on the particle size, and may cause an aggregating action. However, in the bubble-containing liquid manufacturing apparatus 20 according to the present embodiment, bubbles having a close particle diameter stay in the same region in the storage space 250s, and therefore can be stored without agglomeration.

  Since hydrogen water produced by the bubble-containing liquid production system according to the present embodiment contains hydrogen ultrafine bubbles at a high concentration, the hydrogen concentration can be maintained over a long period of time. Further, since the ultrafine bubbles also have antibacterial action, the hydrogen water produced by the bubble-containing liquid production system according to the present embodiment is effective for long-term storage.

  [Method for producing hydrogen water]

  Next, a method for producing hydrogen water S1 according to an embodiment of the present invention will be described with reference to FIG. FIG. 9 shows a flowchart of the hydrogen water production method S1. In the hydrogen water production method S1, a hydrogen water production method will be described using the bubb hydrogen water production system 1. However, the method for producing hydrogen water may produce hydrogen water using another system.

  First, water is introduced as a liquid into the reservoir 250 (liquid introduction step: S1-1). Specifically, pure water is introduced into the hydrogen water production system 200 from the pure water production apparatus via the liquid introduction unit 201 and temporarily stored in the storage unit 250.

  Next, fine bubbles of hydrogen gas are generated in the pure water stored in the storage unit 250 (bubble generation step: S1-2). Specifically, pure water stored in the storage unit 250 is supplied to the bubble generation unit 230 via a circulation path r2 in which the bubble generation unit 230 is incorporated, and fine bubbles are generated by the bubble generator 231 of the bubble generation unit 230. Is generated. The generated hydrogen bubble-containing water containing fine bubbles is supplied to the bubble crushing section 240.

  In this step, water is introduced from the storage unit 250 into the bubble generator 231 and hydrogen gas is introduced from the gas introduction unit 202 to generate fine bubbles from the hydrogen gas.

  Next, the hydrogen gas fine bubbles are crushed (bubble crushing step: S1-3). Specifically, when hydrogen bubble-containing water including fine hydrogen bubbles generated by the bubble generation unit 230 is supplied to the ultrasonic crushing unit 240 and the hydrogen bubble-containing water passes through the passage of the ultrasonic crushing unit 240. When irradiated with ultrasonic waves, the fine bubbles are crushed by the ultrasonic waves and further converted into ultrafine bubbles having a small particle size.

  In this step, an ultrasonic crushing field is formed in the passage. By passing through the ultrasonic crushing field, the fine bubbles are uniformly collapsed. And the hydrogen bubble containing water body which passed the bubble crushing part 240 returns to the storage part 250. FIG.

  Next, hydrogen bubble-containing water containing ultrafine bubbles is stored (storage step: S1-4). Specifically, water containing ultrafine bubbles is supplied from the ultrasonic crushing unit 240 and stored in the storage unit 250. Further, part of the hydrogen bubble-containing water may be supplied to the bubble generation unit 230 again and circulated. At this time, a method of circulating the hydrogen bubble-containing water and repeatedly ultrasonically crushing the hydrogen bubble-containing water is referred to as a circulation method, and a method of storing the hydrogen bubble-containing water in the storage unit 250 without circulating the hydrogen bubble-containing water is referred to as a one-pass method. Called.

  Therefore, in the circulation system, the bubble generation step (S1-2), the first bubble collapse step (S1-3), and the storage step (S1-4) are repeated a plurality of times by the circulation path r2. The ultrafine bubble generation process by the bubble generation step (S1-2), the bubble crushing step (S1-3), and the storage step (S1-4) is performed when the time for circulating the circulation path r2 exceeds a certain time. The amount of ultrafine bubbles due to gas becomes steady.

  In the storage step (S1-4), in the hydrogen bubble-containing water in the storage space of the storage unit 250, bubbles having smaller particle diameters are concentrated toward the lower side, and the ultra fine bubbles are dominant below the storage space. A region is formed, and a UFB + MB region in which ultrafine bubbles and microbubbles are mixed is formed on the upper side, and further, an MB region in which the presence of microbubbles is dominant is formed on the upper side.

  Further, the hydrogen bubble-containing water is pressurized in parallel with the storage step (S1-4) or after the storage step (pressurization step: S1-5). Specifically, the storage tank 250 is pressurized from the pressure unit 205 via the pressure port 205f, the pressure is adjusted by the vent filter 258, and a pressure higher than the atmospheric pressure is applied to the hydrogen water. In the present embodiment, the reservoir 250 is pressurized to about 0.4 to 0.6 MPa. Thereby, the hydrogen concentration of the stored hydrogen bubble-containing water is improved.

  Next, the hydrogen bubble-containing water is derived while reducing the pressure. (Decompression deriving step: S1-6). Specifically, the hydrogen bubble-containing water stored in a pressurized state in the storage unit 250 is taken out via the outlet path 203 while being decompressed by the pressure reducing valve 253. Here, by removing the hydrogen bubble-containing water while reducing the pressure, foaming can be suppressed, and the hydrogen bubble-containing water can be taken out while maintaining the hydrogen concentration.

  Next, water containing hydrogen bubbles is stored. (Saving step: S1-7). Specifically, the hydrogen bubble-containing water taken out from the bubble-containing liquid manufacturing apparatus 20 via the outlet path 203 is stored in a container that is released to the atmosphere. The extracted hydrogen bubble-containing water contains ultrafine bubbles. It is known that ultrafine bubbles stay in a liquid for a long time, so that hydrogen water that maintains hydrogen at a high concentration can be stored.

[Experimental result]

  With respect to the hydrogen water produced by the bubble-containing liquid production apparatus 20 according to the embodiment of the present invention and the hydrogen water produced by another method, experimental results on the hydrogen concentration will be described with reference to FIGS. 10 and 11.

  In this experiment, first, in the bubble-containing liquid production apparatus 20 according to the embodiment of the present invention, the hydrogen concentration of hydrogen water produced as a pressurized tank system that pressurizes the reservoir 250 at a pressure of 0.4 to 0.6 MPa. Was measured in the reservoir 250. In comparison with this, the hydrogen concentration was measured in the same manner by a hydrogen dissolution method in which hydrogen gas was dissolved in water using a high-pressure hydrogen cylinder and an electrolysis method using a normal pressure electrolysis hydrogen generator. The dissolved hydrogen concentration was measured by a conventionally well-known dissolved hydrogen concentration measuring device using a diaphragm type polaro electrode method.

  As shown in FIG. 10, according to the pressurized tank system, it was confirmed that the hydrogen concentration rapidly increased to about 16 ppm in about 10 minutes in the produced hydrogen water. On the other hand, in the hydrogen dissolution method, it was confirmed that in hydrogen water for dissolving hydrogen, the hydrogen concentration gradually increased to about 13 ppm until about 60 minutes. Moreover, in the electrolysis system, it was confirmed that the hydrogen concentration to be produced constantly has a hydrogen concentration of about 0.65 ppm.

  As is clear from this, the hydrogen bubble-containing water production apparatus according to the embodiment of the present invention can increase the hydrogen concentration in a short time by pressurizing the reservoir. Therefore, in the hydrogen water production system according to the embodiment of the present invention, hydrogen water containing ultrafine bubbles in a high concentration can be provided in a short time due to the pressure reduction effect.

  Next, the hydrogen-containing liquid produced by the above-described pressurized tank system is led out from the reservoir 250 to the container (not shown) released to the atmosphere via the lead-out path 203 by the bubble-containing liquid production apparatus 20, The hydrogen concentration of the derived hydrogen water was measured.

  In this experiment, in the bubble-containing liquid production apparatus 20, the hydrogen bubble-containing water is circulated using the so-called one-pass method in which the hydrogen bubble-containing water is taken out from the storage unit 250 without being circulated through the circulation path r2, and the circulation path r2. Then, the hydrogen concentration of the hydrogen water was measured by a so-called circulation method in which the water was taken out from the storage unit 250. In addition, the hydrogen concentration of hydrogen water was measured at the upper and lower parts of the container by the one-pass method and the circulation method, respectively.

  In the above hydrogen concentration measurement, a flow meter was provided in the lead-out path 203 for leading out hydrogen water, and the concentration measurement was performed while measuring the flow rate of hydrogen water. On the other hand, in the measurement at the lower part of the one-pass type container, another experiment was conducted in which hydrogen water was derived and the hydrogen concentration of the hydrogen water was measured without providing a flow meter.

  As shown in FIG. 11, it has been clarified that the one-pass method can produce hydrogen water having a higher hydrogen concentration in the comparison between the one-pass method and the circulation method. In addition, a comparison between the upper part and the lower part of the container revealed that hydrogen water having a higher hydrogen concentration was derived from the lower part. However, it was clarified that by leaving hydrogen water in a container opened to the atmosphere for about 10 to 30 minutes, the difference in hydrogen concentration between the upper part and the lower part of the container disappears and becomes uniform.

  It has also been clarified that hydrogen water having a high hydrogen concentration can be derived if a flow meter is not provided in the route for deriving hydrogen water. This is thought to be due to the flow meter becoming an obstacle in the flow path of hydrogen water and the decrease in hydrogen concentration. Therefore, it is desirable that the deriving path derives the hydrogen water without providing an obstacle that obstructs the flow in the flow path through which the hydrogen water whose hydrogen concentration has been increased by the pressurizing and depressurizing action. Therefore, the lead-out path maintains the cross-sectional diameter of the flow path and does not include an obstacle that obstructs the flow of fluid in the flow path, so that hydrogen water with a high hydrogen concentration can be derived. it can.

  The foregoing descriptions of specific embodiments of the present invention have been presented for purposes of illustration. They are not intended to be exhaustive or to limit the invention to the precise form described. It will be apparent to those skilled in the art that many modifications and variations are possible in light of the above description.

  The present invention can be used for the production of hydrogen water.

DESCRIPTION OF SYMBOLS 1 Hydrogen water manufacturing system 10 Hydrogen supply apparatus 20 Bubble containing liquid manufacturing apparatus 230 Bubble production | generation part 240 Bubble crushing part 250 Storage part 250h Pressurization port 253 Pressure reducing valve 30 Pure water supply apparatus r2 Circulation path

Claims (8)

A bubble generator that is supplied with hydrogen gas and water and generates fine bubbles of hydrogen gas in the water;
A bubble crushing unit connected to the bubble generating unit, passing hydrogen water supplied from the bubble generating unit, irradiating the passing hydrogen water with ultrasonic waves, and crushing fine bubbles in the hydrogen water;
A hydrogen water production system comprising a storage unit connected to the bubble collapse unit and storing hydrogen water supplied from the bubble collapse unit,
The storage unit includes hydrogen water that includes a pressurization port for applying a pressure higher than atmospheric pressure to the stored hydrogen water, and a lead-out port for deriving the stored hydrogen water to the outside while reducing the pressure to atmospheric pressure. Manufacturing system.
The hydrogen water production system according to claim 1, wherein the deriving path derives hydrogen water without narrowing a flow path through which the depressurized hydrogen water passes.
The hydrogen water production system according to claim 1, wherein the deriving path derives the hydrogen water without providing an obstruction that obstructs the flow in the flow path through which the depressurized hydrogen water passes.
The hydrogen water production system according to any one of claims 1 to 3, further comprising a circulation path in which the bubble generation unit, the bubble crushing unit, and the storage unit are incorporated.
Hydrogen water manufactured by the hydrogen water manufacturing system according to any one of claims 1 to 4.
A bubble generation step for generating fine bubbles of hydrogen gas in the water;
A bubble crushing step of passing hydrogen water supplied from the bubble generator, irradiating the passing hydrogen water with ultrasonic waves, and crushing fine bubbles in the hydrogen water;
A storage step connected to the crushing part and storing hydrogen water supplied from the bubble crushing part in a storage part,
A pressurizing step of applying a pressure higher than atmospheric pressure to the hydrogen water stored in the storage unit;
A depressurization derivation step of deriving hydrogen water to the outside while depressurizing to atmospheric pressure after the pressurization step.
The method for producing hydrogen water according to claim 6, wherein the bubble generation step, the bubble collapse step, and the storage step are repeatedly performed while performing the pressurization step.
  The method for producing hydrogen water according to claim 6 or 7, further comprising a storage step of storing the hydrogen water after the decompression derivation step.

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