WO2018021217A1 - Générateur de microbulles, procédé de génération de microbulles, dispositif d'aspiration et système d'aspiration - Google Patents

Générateur de microbulles, procédé de génération de microbulles, dispositif d'aspiration et système d'aspiration Download PDF

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Publication number
WO2018021217A1
WO2018021217A1 PCT/JP2017/026633 JP2017026633W WO2018021217A1 WO 2018021217 A1 WO2018021217 A1 WO 2018021217A1 JP 2017026633 W JP2017026633 W JP 2017026633W WO 2018021217 A1 WO2018021217 A1 WO 2018021217A1
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WIPO (PCT)
Prior art keywords
liquid
gas
fine bubble
bubble generating
pipe
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PCT/JP2017/026633
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English (en)
Japanese (ja)
Inventor
義範 中本
Original Assignee
株式会社テックコーポレーション
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Priority claimed from JP2017116388A external-priority patent/JP6343069B2/ja
Application filed by 株式会社テックコーポレーション filed Critical 株式会社テックコーポレーション
Priority to EP17834223.4A priority Critical patent/EP3488918B1/fr
Priority to SG11201900325TA priority patent/SG11201900325TA/en
Priority to CN201780044066.2A priority patent/CN109562337B/zh
Priority to ES17834223T priority patent/ES2945982T3/es
Priority to AU2017301292A priority patent/AU2017301292C1/en
Priority to US16/320,373 priority patent/US11745149B2/en
Priority to KR1020197005359A priority patent/KR20190044623A/ko
Priority to MYPI2019000400A priority patent/MY194988A/en
Publication of WO2018021217A1 publication Critical patent/WO2018021217A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/20—Jet mixers, i.e. mixers using high-speed fluid streams
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods

Definitions

  • the present invention is used in, for example, a fine bubble generating device that generates fine bubble water containing fine bubbles, a fine bubble generating device that manufactures bubble electrolyzed water that is electrolytic water containing fine bubbles, and a fine bubble generating device. It can be suitably applied to a suction device and a suction system.
  • the present invention has been made to solve such a problem, and its object is to be used in a fine bubble generating device, a fine bubble generating method, and a fine bubble generating device capable of increasing the fine bubbles contained in a medium liquid.
  • a suction device and a suction system are provided.
  • the fine bubble generating apparatus of the present invention A gas-liquid delivery section for delivering a mixed gas and a medium liquid; A first pipe for discharging the sent mixed liquid; A pump that discharges the mixture while applying pressure; A second pipe for discharging the mixed liquid from the pump; It has a fine bubble generating part for generating fine bubbles in the mixed liquid supplied from the second pipe by a physical collision action under the pressure.
  • the method for generating fine bubbles includes: A gas-liquid delivery step for delivering a mixed gas and a medium liquid; A supplying step of supplying the pumped mixed liquid to a pump; A fine bubble generating step for generating fine bubbles in the liquid mixture discharged from the pump by a physical collision action; And a pressure release step for releasing the pressure applied to the liquid mixture.
  • the suction device of the present invention is When the two bottom surfaces of the cylinder are the first surface and the second surface, a cylindrical portion that advances the medium liquid supplied from the plurality of paths from the first surface to the second surface; A plurality of introduction parts for introducing the medium liquid into the cylindrical part from the first surface or the vicinity of the first surface so as to rotate the medium liquid inside the cylindrical part; And a discharge port provided at or near the center of the second surface.
  • the suction system of the present invention is A plurality of first processing devices for processing the liquid medium; A second processing device for processing the medium liquid; When the two bottom surfaces of the cylinder are the first surface and the second surface, a cylindrical portion that advances the medium liquid supplied from the plurality of paths from the first surface to the second surface; A plurality of introduction parts for introducing the medium liquid into the cylindrical part from the first surface or the vicinity of the first surface so as to rotate the medium liquid inside the cylindrical part; And a suction port provided between the first processing device and the second processing device.
  • the discharge port is provided at the center or near the center of the second surface.
  • the microbubble generator of the present invention includes an electrolysis unit that electrolyzes raw water to generate electrolyzed water and decomposition gas, A gas-liquid delivery unit that mixes the electrolyzed water and the cracked gas to deliver a mixed liquid; A first pipe for supplying the mixed liquid in a sealed state from the electrolysis section to the gas-liquid delivery section; A fine bubble generating section for generating fine bubbles in the mixed liquid supplied from the gas-liquid delivery section by a physical collision action; A second pipe for supplying the mixed liquid in a sealed state from the gas-liquid delivery unit to the fine bubble generation unit; A pump provided on the second pipe for pumping the mixed liquid to the fine bubble generating device.
  • the present invention can realize a fine bubble generating device, a fine bubble increasing device, and a fine bubble increasing method capable of increasing the fine bubbles to be contained in the medium liquid.
  • the present invention can realize a suction device and a suction system that can uniformize the liquid medium supplied from a plurality of paths.
  • Outline diagram showing configuration (2) of electrolysis section It is a basic diagram which shows the structure (3) of an electrolysis part. It is a basic diagram with which it uses for description of the flow in an electrolyzed water production
  • reference numeral 1 denotes the microbubble generator of the present invention as a whole.
  • the fine bubble generating device mixes the medium liquid and the supply gas supplied from the medium liquid supply unit 3 and the gas supply unit 4 through the pipes 3A and 4A by high-speed stirring by the gas-liquid delivery unit 5 under a predetermined pressure.
  • a liquid is generated and the mixed liquid is supplied to the pump 6 through the pipe 5A.
  • the pump 6 supplies the mixed liquid to the nanobubble generating unit 7 through the pipe 6A.
  • the nanobubble generating unit 7 supplies the fine bubble water containing the generated nanobubbles to the fine bubble water providing unit 8 via the pipe 7A.
  • the fine bubble water providing unit 8 releases the pressure in the fine bubble water and provides fine bubble water to the user via a connected supply pipe, device, water storage tank, or the like.
  • nanobubbles mean bubbles of the order of nanometers (10 nm to 900 nm). The smaller the bubble particle size, the greater the surface area of the bubble and the greater the amount of dissolved gas.
  • the medium liquid is not particularly limited and is appropriately selected depending on the application.
  • various liquids such as water, an aqueous solution, and an organic solvent can be used, but water or an aqueous solution is preferable.
  • Various kinds of water such as tap water, electrolyzed water, pure water, and purified water can be used.
  • the gas (mixed gas) to be contained as nanobubbles is not particularly limited and is appropriately selected depending on the application.
  • air, hydrogen, oxygen, carbon dioxide and the like are preferable.
  • a predetermined pressure is applied by the closed system until the pressure from the gas / liquid delivery part 5 is released by the fine bubble water providing part 8. That is, in the present invention, rather than simply supplying the mixed gas and the medium liquid to the nanobubble generating unit 7, the mixed liquid and the medium liquid are preliminarily stirred at high speed by the gas-liquid delivery unit 5 under pressure, and the mixed liquid is prepared. This is supplied to the pump 6 and passed through the pipes 5A and 6A before and after the pump 6, and is supplied to the nanobubble generating unit 7 after pre-processing for allowing the mixed gas and the medium liquid to get used over time.
  • the contact time of the mixed gas and the medium liquid can be kept long by utilizing the transmission path to the pump 6, and the nano bubbles are increased in the nano bubble generating unit 7 and more mixed liquid is dissolved in the medium liquid.
  • the pressure is released by the fine bubble water providing unit 8, it is possible to generate more nanobubbles accompanying the pressure release.
  • the fine bubble generating device 1 by providing the gas-liquid delivery unit 5 in the front stage of the pump 6, the mixed gas and the medium liquid are mixed using the pipes 5A and 6A before and after the pump 6, and then mixed.
  • the liquid is supplied to the nanobubble generating unit 7 to generate nanobubbles, and then the pressure is released by the fine bubble water providing unit 8.
  • the fine bubble generating apparatus 1 As described above, in the fine bubble generating apparatus 1, the so-called high-speed swirling method and pressure releasing method in which nanobubbles are generated by high-speed swirling while dissolving the mixed gas under a predetermined pressure, and further nanobubbles are generated by releasing the pressure. A new method for generating fine bubbles is used.
  • reference numeral 10 denotes a bubble electrolyzed water generator as a whole.
  • electrolyzed water generated by electrolysis is used as a medium solution to generate bubbling electrolyzed water that is electrolyzed water containing nanobubbles.
  • the bubble electrolyzed water generating apparatus 10 includes a control unit 20 (not shown) composed of an MPU (Micro Processing Unit), ROM (Read Only Memory) and RAM (Random Access Memory) (not shown).
  • the entire water generator 10 is controlled in an integrated manner.
  • the generated gas and the electrolyzed water generated by the electrolysis unit 13 are sent as they are to the gas-liquid delivery unit 15, the pump 16, and the nanobubble generation unit 17, thereby generating bubble electrolysis containing the generated gas as nanobubbles.
  • Produce water At this time, the entire system (electrolysis unit 13 to nanobubble generation unit 17) is a closed system, and the generated gas and electrolyzed water are mixed as they are without separation under a predetermined pressure, thereby efficiently generating the components of the generated gas. It can be dissolved and nanobubbled.
  • the raw water supply unit 11 supplies the raw water to the electrolysis unit 13 only when the bubbling electrolyzed water is generated by the opening / closing control of the opening / closing mechanism by the control unit 20.
  • the raw water supply unit 11 supplies raw water to the electrolysis unit 13 in a state where pressure is applied. Further, when the water pressure of the connected tap water or the like is too high, a pressure reducing mechanism such as a pressure reducing valve may be configured.
  • the raw water various waters such as tap water, electrolytic water, pure water, and purified water can be used. Moreover, you may use the water which removed unnecessary components, such as an impurity, by installing various filters in the front
  • the electrolyte supply unit 12 supplies the electrolytic aqueous solution to the electrolysis unit 13 under the control of the control unit 20. It does not restrict
  • the electrolyzing unit 13 may be any structure that can electrolyze raw water to generate electrolyzed water, and is not particularly limited. One tank type, two tank types, and three tank types can be appropriately selected and used according to the type of electrolyte.
  • the electrolysis unit 13 is a three-tank electrolytic cell, as shown in the cross-sectional view of FIG. 3A, the intermediate tank 45 between the water-permeable anode 43 and the cathode 44 is filled with salt water,
  • the structure which provided the diaphragms 46 and 47 between each tank can be used.
  • the salt water is supplied from the electrolyte supply port 55 and is discharged from the electrolyte discharge port 56 (not shown).
  • a second raw water supply port 42 for supplying raw water to the cathode chamber 52 is provided near the bottom of the electrolytic cell.
  • a first raw water supply port 41 through which raw water is supplied to the anode chamber 51 is provided near the bottom surface.
  • an alkaline electrolyzed water discharge port 49 for discharging alkaline electrolyzed water to the top surface of the electrolytic cell and an acidic electrolyzed water discharge port 48 for discharging acidic electrolyzed water to the top surface of the electrolytic cell are provided.
  • the raw water proceeds from the bottom to the top, and is discharged from the upper outlets 48 and 49 (the alkaline electrolytic water outlet 49 and the acidic electrolytic water outlet 48) as alkaline electrolyzed water and acidic electrolyzed water.
  • the generated gas generated by electrolysis moves upward by buoyancy and is efficiently discharged from the discharge ports 48 and 49.
  • the electrolyzed water (alkaline electrolyzed water and acidic electrolyzed water) discharged from the electrolysis unit 13 is in a state containing the generated gas.
  • the electrolysis unit 13 supplies the generated generated gas and electrolyzed water to the gas-liquid delivery unit 15 via the pipe 13A.
  • subsequent processes are performed only with respect to the required electrolyzed water among the produced electrolyzed water.
  • the processing is performed by one processing unit, and when both electrolyzed waters are used, the processing is performed by two processing units. For the sake of convenience, a case will be described in which the electrolyzed water is not specified and is processed by a single processing unit.
  • the gas-liquid delivery unit 15 mixes the generated gas and the electrolyzed water by high-speed agitation or rotates the gas at high speed to bring the generated gas and the electrolyzed water into contact with each other for a certain period of time. Are sent to the pump 16 at a substantially equal rate so that there is no bias.
  • the generation amount of nanobubbles is hardly or very small (less than 10% in terms of the number ratio as compared with the nanobubble generation unit 17).
  • FIGS. An example of the configuration of the gas-liquid delivery unit 15 is shown in FIGS. As shown in FIG. 4, the gas-liquid delivery part 15 is sandwiched between plate-like members 71 and 72 having a rectangular shape on the upper side of a cylindrical member 70 and a plate-like member 73 having a lower rectangular shape. It has a shape.
  • the plate-like members 71 to 73 constitute the bottom surface of the cylindrical member 70 and have a supply path for supplying electrolytic water and mixed gas to the cylindrical member 70.
  • the electrolyzed water (including the generated gas) is supplied to the cylindrical member 70 through supply paths 71 a to 71 d formed in the plate-like member 71.
  • supply paths 72a and 72b are formed in the plate-like member 72, and when a part of the bubble electrolyzed water generated by the nanobubble generating unit 17 overflows, it is supplied to the cylindrical member 70 via the pipe 17B. .
  • the supply paths 71 a to 71 d and 72 to 72 b are provided substantially parallel ( ⁇ 30 °) in the tangential direction with respect to the cylindrical member 70, and the flowing electrolytic water (electrolyzed water and bubble electrolytic water) flows into the cylindrical member 70. It is formed so as to circulate along the inner surface.
  • the central portion of the plate-like member 73 is provided with a discharge port 73a that is a hole for discharging mixed water in which electrolyzed water and mixed gas (generated gas) are mixed, and the mixed water is supplied via the pipe 15A. Discharged. Inside the pipe 15A, a low-speed swirling flow is generated, and it is considered that the electrolyzed water and the mixed gas are stirred up to the pump 16, and the formation of a large gas reservoir can be suppressed.
  • the electrolyzed water and the mixed gas are stirred at a high speed.
  • the inside of the member 70 is swung, and the mixed gas is supplied to the pump 16 via the pipe 15A in a state where the mixed gas is well mixed with each other.
  • this gas-liquid delivery unit 15 a large pressure is generated by, for example, a centrifugal effect by high-speed rotation, and the generated gas and the electrolyzed water are brought into contact with each other at the interface between the gas phase and the liquid layer under a large pressure, and particularly dissolved in water such as chlorine gas.
  • the gas-liquid delivery part 15 can cut off the transmission of pressure between the electrolysis part 13 -the gas-liquid delivery part 15 -the pump 16 by high-speed turning.
  • the pressure in the front stage (pipes 14A and 15A) of the gas-liquid delivery unit 15 is controlled so as to fall within a pressure range of, for example, ⁇ 15 kpa to +15 kpa, more preferably ⁇ 10 kpa to +10 kpa.
  • This control is performed by adjusting a solenoid valve provided in the pipe 17B. As a result of adjustment, if the pressure does not fall within the above pressure range, an emergency stop is performed to protect the device.
  • an air pump or compressed air is used as the gas supply unit 14.
  • This gas supply part 14 is for supplementing the amount of gas that is insufficient with the generated gas, and is not necessarily essential. It is also possible to use only the generated gas as the mixed gas. In this embodiment, the chlorine gas contained in the generated gas is dissolved in the electrolyzed water at a high rate without being diluted. Therefore, the mixed gas is mixed in the pump 16 instead of the gas-liquid delivery unit 15.
  • a mixed gas may be supplied to the unit 15. In this case, it is preferable that the mixed gas can be mixed at the center of the vortex by mixing the mixed gas from the upper surfaces of the plate-like members 71 and 72 and the vicinity of the center.
  • the pump 16 (FIG. 2) is not particularly limited, and various known ones can be used.
  • a bubbling pump for example, a SUS general-purpose vortex turbine pump 20NPD07Z (manufactured by Nikuni Co., Ltd.)
  • the pump 16 applies pressure to the mixed water supplied via the pipe 15A, and supplies the mixed water to the nanobubble generator 17 via the pipe 16A at a fixed amount of, for example, 20 L / min.
  • the nanobubble generating unit 17 is a high-speed swirling nanobubble generator that contains nanobubbles (fine bubbles) made of gas in the medium liquid (mixed water) by high-speed swirling, and there is no limitation on the configuration thereof.
  • the nanobubble generator 17 has a configuration in which the angle is changed by a collision, for example, while turning inside a plurality of cylindrical members.
  • the nanobubble generating unit 17 creates a gas-liquid interface due to a specific gravity difference in a state where the gas and the medium liquid are swirled to generate a speed, and generates nanobubbles by gas-liquid friction generated at the interface. Further, the nanobubble generation unit 17 collides the medium liquid with the wall surface and changes the traveling direction thereof, thereby disturbing the flow of the medium liquid and vigorously stirring and mixing the gas and the medium liquid. As a result, the bubbles become fine due to the physical collision action between the gas and the medium liquid, and more nanobubbles are formed.
  • the nanobubble generator 17 changes the traveling direction of the medium liquid abruptly while rotating the medium liquid at high speed. Thereby, the nano bubble production
  • the nanobubble generating unit 17 supplies the bubbling electrolyzed water in which the nanobubbles are generated by high-speed rotation under a predetermined pressure to the bubbling electrolyzed water providing unit 18.
  • the bubble electrolyzed water providing unit 18 has an opening / closing mechanism, and opens / closes the opening / closing mechanism under the control of the control unit 20.
  • the pressure is released at the moment when the bubble electrolyzed water is discharged from the faucet. Further, when a cleaning device or the like installed at the subsequent stage is connected, a pipe (not shown) is connected to the bubble electrolyzed water providing unit 18, and the pressure inside the subsequent cleaning device or the storage tank is increased. A pressure release part (not shown) is provided outside the bubble electrolyzed water generation device 10 so that the pressure is released to atmospheric pressure at once. At this time, a part of the gas dissolved in the bubble electrolyzed water becomes nanobubbles, and the nanobubbles in the bubble electrolyzed water can be increased.
  • the gas-liquid delivery unit 15 is provided before the nanobubble generating unit 17, and the contact time between the mixed gas and the electrolyzed water is set longer by using the transmission path of the pump 16. I made it.
  • the mixed gas can be adapted to the electrolyzed water, the bubbles can be easily reduced, and the generation of nanobubbles by the nanobubble generating unit 17 can be increased, and the solubility of the mixed gas in the electrolyzed water can be improved and generated when the pressure is released. Nanobubbles that are generated can be increased.
  • the nanobubbles generated by the high-speed swirling method hardly contain chlorine gas.
  • some of the chlorine is thought to be nanobubbled when the pressure is released, but because of the high solubility, other gases are preferentially nanobubbled, so that most of the chlorine may exist in the dissolved state in the bubble electrolyzed water. it can.
  • the concentration of dissolved chlorine is very important.
  • the bubbling electrolyzed water generating apparatus 10 when generating chlorine gas as a part of the generated gas, it is possible to make most of the chlorine components generated by electrolysis exist in a state dissolved in the bubbling electrolyzed water.
  • the chlorine concentration can be improved, and the effect of sterilization and sterilization can be enhanced.
  • step SP101 raw water is pressurized and supplied in step SP101, and electrolyzed water is generated by electrolyzing the raw water in step SP102.
  • step SP103 the electrolyzed water and the generated gas are conveyed, and in step SP104, the mixed water is sent out so that the ratio of the electrolyzed water and the generated gas is equal in time series.
  • step SP105 the mixed water is pumped through a pump, and in step SP106, nanobubbles are generated by a high-speed swirling method.
  • step SP107 the pressure is released, and nanobubbles are generated by the pressure release method.
  • nanobubbles are generated by the high-speed swirling method under pressure using a sealed system between step SP101 and step SP106, the nanobubbles are generated by the pressure release method, and electrolyzed water and generated gas (and mixed gas) Therefore, it is possible to further increase the nanobubbles.
  • a two-tank electrolytic cell as shown in FIGS. 7 and 8 is used as the electrolysis unit 13x, and only acidic electrolyzed water is provided.
  • two first raw water supply ports 41 through which raw water is supplied to the anode chamber 51 are provided near the bottom of the electrolytic cell.
  • two acidic electrolyzed water discharge ports 48 for discharging acidic electrolyzed water are provided on the top surface of the electrolytic cell.
  • the top surface of the electrolytic cell refers to the top surface of the inner surface of the anode chamber 51. The same applies hereinafter.
  • the raw water proceeds from the bottom to the top, and is discharged from the upper acidic electrolyzed water outlet 48 as acidic electrolyzed water.
  • the generated gas generated by electrolysis moves upward by buoyancy and is efficiently discharged from the acidic electrolyzed water discharge port 48.
  • the acidic electrolyzed water discharged from the electrolysis unit 13x is in a state containing the generated gas (chlorine gas and oxygen gas).
  • the electrolysis unit 13x supplies the generated generated gas and electrolyzed water to the gas-liquid delivery unit 15 via the pipe 13A.
  • an electrolyte supply port 42 to which an electrolyte aqueous solution in which an electrolyte (sodium chloride) is dissolved is supplied to the cathode chamber 52 is provided near the bottom of the electrolytic cell.
  • an alkaline electrolyzed water discharge port 49 for discharging alkaline electrolyzed water is provided on the top surface of the electrolytic cell.
  • the aqueous electrolyte solution proceeds from the bottom to the top and is discharged from the alkaline electrolyzed water outlet 49. At this time, the generated gas generated by electrolysis moves upward due to buoyancy and is efficiently discharged from the alkaline electrolyzed water outlet 49.
  • a circulation tank 63 is connected to the alkaline electrolyzed water discharge port 49 and the electrolyte supply port 42 via pipes 61 and 62.
  • the circulation tank 63 is connected to the electrolyte supply tank 65 and the raw water supply unit 11 via pipes 64 and 67, respectively.
  • the circulation tank 63 has a discharge pipe 66.
  • the pipes 61, 62, 64, 66 and 67 are all provided with an opening / closing mechanism, and are opened and closed under the control of the control unit 20.
  • the control unit 20 supplies raw water from the raw water supply unit 11 to the anode chamber 51 while supplying electrolytic aqueous solution from the circulation tank 63 to the cathode chamber 52 when supplying electrolytic water.
  • the electrolytic aqueous solution is supplied from the circulation tank 63 to the cathode chamber 52 for electrolysis, and the alkaline electrolyzed water generated by the electrolysis is returned to the circulation tank 63 and reused as the electrolyte aqueous solution. To do.
  • the anion (chlorine ion) concentration in the circulation tank 63 decreases.
  • the control unit 20 removes only a small amount of the aqueous electrolyte solution (for example, 1/20 to 1/5 of the tank capacity) through the pipe 66 every predetermined replenishment time (for example, it operates for 15 to 120 minutes). About) Discard and replenish the circulation tank 63 with the same amount of electrolyte aqueous solution.
  • control unit 20 discards the entire electrolyte aqueous solution in the circulation tank 63 via the pipe 66 every predetermined replacement time (for example, 5 to 25 hours), and fills the circulation tank 63 with the electrolyte aqueous solution for the tank capacity. To do.
  • control unit 20 executes the cleaning process for the circulation tank 63 and the cathode chamber 52 at a preset cleaning time.
  • the control unit 20 supplies the raw water to the circulation tank 63 from the raw water supply unit 11 after discarding the entire electrolyte aqueous solution in the circulation tank 63 from the pipe 66. Then, the control unit 20 circulates raw water to the circulation tank 63 and the cathode chamber 52 via the pipes 62 and 61. This process is executed for about 10 minutes to 1 hour, for example. The supply of raw water may be continued and the raw water may be washed continuously while discarding some raw water as needed. Processing may be performed. Further, the cleaning process may be performed only once or a plurality of times.
  • a neutralizing device for neutralizing the alkali with respect to the pipe 66. Thereby, it can be discarded after adjusting the pH of the concentrated alkaline electrolyzed water to an appropriate value.
  • the electrolytic aqueous solution supplied to the cathode chamber 52 is supplied to the cathode chamber 52 by the electrolyzer 13 x having a two-tank electrolytic cell structure separated by the diaphragm 46 x, and the alkaline electrolyzed water generated by the electrolytic solution 13 x is used as it is.
  • the circulation tank 63 While circulating through the circulation tank 63 as an aqueous solution, only acidic electrolyzed water is supplied from the bubble electrolyzed water providing unit 18 as bubble electrolyzed water.
  • the bubble electrolyzed water generating apparatus 10 can automatically replace the aqueous electrolyte solution by a discharge mechanism (pipe 66) and a filling mechanism (pipe 64 and electrolyte supply tank 65) for discharging the electrolyte aqueous solution in the circulation tank 63. did. Furthermore, the bubble electrolyzed water generating apparatus 10 can automatically wash the circulation tank 63 by connecting the raw water supply unit 11 and the circulation tank 63.
  • the fine bubble generation device of the present invention (fine bubble generation device 1 or bubble electrolyzed water generation device 10) A gas-liquid delivery part (gas-liquid delivery parts 5 and 15) for delivering the mixed gas and the medium liquid; A first pipe (pipe 5A or 15A) for discharging the sent mixed liquid; A pump (pump 6 or 16) for discharging the liquid mixture while applying pressure; A second pipe (pipe 6A or 16A) for discharging the mixed liquid from the pump; A fine bubble generating part (nanobubble generating part 7 or 17) for generating fine bubbles in the mixed liquid supplied from the second pipe by a physical collision action under the pressure. Bubble generator.
  • the mixed gas and the medium liquid can be used for a long time using the transmission path to the pump. It is possible to increase the nanobubbles generated when the pressure is released by improving the solubility of.
  • the fine bubble generating unit is The microbubbles are generated in the medium liquid using high-speed turning.
  • the fine bubble generating apparatus can mix the mixed gas and the medium liquid effectively in a short time.
  • the bubble size of the mixed gas can be effectively reduced, an air pool is not formed during transmission to the pump, and troubles caused by the air biting of the pump can be prevented.
  • the air biting means that pressure loss occurs due to air accumulation, and the discharge amount and pressure of mixed water by the pump change.
  • the gas-liquid delivery unit is The inside of the cylinder is turned at a high speed in one direction.
  • the fine bubble generating device can effectively reduce the bubble size of the mixed gas in a short time without generating almost any nanobubbles.
  • the gas-liquid delivery unit is When the two bottom surfaces of the cylinder are defined as a first surface and a second surface, the liquid mixture is rotated in an in-plane direction on the first surface toward the second surface in a direction substantially perpendicular to the first surface. Advancing the mixture, Supplying the liquid mixture in the direction of rotation, The mixed solution rotated at a high speed is supplied to the first pipe through a hole provided in the center of the second surface or in the vicinity of the center.
  • supplying the mixed solution in the rotation direction means supplying the mixed solution in a tangential direction of a circle on the inner surface of the cylinder so as to turn along the inner surface of the cylinder. More preferably, the mixed liquid is supplied from at least two different directions in the planar direction of the first surface in the same rotational direction.
  • the fine bubble generating device can rotate the medium liquid at a high speed with a simple configuration.
  • the mixed gas is It is supplied from the center of the first surface or near the center.
  • the fine bubble generating apparatus can smoothly mix the medium liquid and the mixed gas.
  • a third pipe (pipe 13A) that is provided upstream of the gas-liquid delivery unit and supplies the medium liquid to the gas-liquid delivery unit;
  • An electrolysis unit (electrolysis unit 13) provided in the preceding stage of the third pipe and supplying a mixture of electrolyzed water and generated gas generated by electrolyzing raw water to the third pipe as the medium liquid Furthermore, it is characterized by having.
  • the electrolysis section is preferably a two-tank electrolytic cell in which a cathode chamber having a cathode and an anode chamber having an anode are separated by a diaphragm.
  • the electrolysis unit is: A raw water supply port provided near the bottom surface or near the bottom surface, through which the raw water is supplied to the cathode chamber having the cathode; It has an alkaline electrolyzed water discharge port through which alkaline electrolyzed water is discharged at or near the top surface.
  • the fine bubble generating device can discharge the generated gas generated in the electrolysis unit without using buoyancy and supply it to the gas-liquid delivery unit.
  • a raw water supply port provided near the bottom surface or near the bottom surface, through which the raw water is supplied to the anode chamber having the anode; It has an acidic electrolyzed water discharge port through which acidic electrolyzed water is exhausted at or near the top surface.
  • the generated gas generated in the electrolysis part can be discharged without using buoyancy and supplied to the gas-liquid delivery part.
  • the electrolytic decomposition unit is supplied with an electrolyte solution containing chlorine.
  • the electrolyzed water and the generated gas are brought into contact with each other for a long time, and most of the chlorine contained in the generated gas is dissolved (as hypochlorous acid). ), And it is possible to prevent a pump trouble due to air biting without forming an air reservoir.
  • the process proceeds to the fine bubble generation step to generate more nanobubbles.
  • the gas-liquid delivery device of the present invention comprises: It is characterized by having a high-speed swivel portion that divides the transmission of pressure between the front stage and the rear stage due to the centrifugal separation effect by high-speed swirl.
  • the gas-liquid delivery device (gas-liquid delivery unit 15)
  • a liquid supply section (supply paths 71a to 71d) for supplying a mixed liquid obtained by mixing liquid and gas from the first surface side toward the tangential direction of the cylinder;
  • a cylindrical part (cylindrical member 70) in which a mixed liquid in which a gas and a liquid are mixed while traveling from the first surface toward the second surface, It has a discharge port (discharge port 214) provided at the center or near the center of the second surface and for discharging the swirled mixed liquid.
  • the gas-liquid delivery device The gas is supplied from the vicinity of the center of the first surface. Thereby, the gas-liquid delivery apparatus can mix gas using the negative pressure which arises in the center vicinity by vortex formation.
  • the suction device and the suction system of the present invention are, for example, a fine bubble generating device that generates fine bubble water containing fine bubbles, or a fine bubble generating device that manufactures bubble electrolyzed water that is electrolytic water containing fine bubbles.
  • the present invention can be preferably applied.
  • the present invention can realize a suction device and a suction system that can uniformly supply liquid from a plurality of supply paths.
  • the suction device 200 supplies the medium liquid from the first surface 201 or the introduction portions 213A and 213B provided in the vicinity of the first surface 201 in the cylindrical portion 210,
  • the medium liquid is advanced from the first surface 201 toward the second surface 202 by discharging the medium liquid from the discharge port 214 provided at or near the center of the second surface 202.
  • the suction device 200 is a closed system in which only the introduction part 213 and the discharge port 214 are connected to the outside, and there is no blade inside, and the medium liquid is discharged from the negative pressure generated by the pump connected to the rear side. It is configured to pull from the 214 side to the 213 side. At this time, in the suction device 200, the swing of the pump is canceled by the swirling of the medium liquid, and the medium liquid can always be pulled from the plurality of introduction portions with the same force and evenly.
  • the suction device (gas-liquid delivery part 15) of this invention is When the two bottom surfaces of the cylinder are the first surface (first surface 201) and the second surface (second surface 202), the medium liquid supplied from the plurality of paths proceeds from the first surface to the second surface.
  • a discharge port (discharge port 214) provided at or near the center of the second surface.
  • a circular through hole 72 ⁇ / b> X is formed in the plate-like member 72.
  • the through hole 72X is formed slightly larger than the diameter of the cylindrical member 70 in the region on the cylindrical member 70 side (about 1-10 mm), but is smaller than the diameter of the cylindrical member 70 above it (1-10 mm). Level) is formed. Accordingly, the cylindrical member 70 is fitted into the step portion of the plate-like member 72. Further, the plate-like member 71 is provided with a circular recess 71X connected from the through hole 72X. Therefore, the side surface portions of the through hole 72X and the recessed portion 71X constitute a part of the cylindrical portion 210, and the bottom surface portion of the recessed portion 71X constitutes the first surface 201.
  • a discharge port 73 a is formed at the center of the plate-like member 73.
  • a circular recess 73X is formed, and the side surface of the recess 73X constitutes a part of the cylindrical portion 210, while the bottom surface of the recess 73X forms the second surface 202. It is composed.
  • the introduction part is The medium liquid is swirled inside the cylindrical part by introducing the medium liquid into the cylindrical part along the outer wall of the cylindrical part.
  • the medium liquid travels along the cylindrical portion, and a swirling flow can be formed using the flow in the introduction portion as it is.
  • the cylindrical portion is It consists of a cylindrical member without a bottom surface and first and second flange portions constituting the bottom surface,
  • the introduction part is A hole provided in the first flange portion for introducing the medium liquid from a tangential direction with respect to the cylindrical member;
  • the outlet is The medium liquid is provided in the second flange portion and guides the medium liquid to a downstream pipe.
  • the suction device can be formed by a simple assembly method using a flange method.
  • the discharge port (pipe 15A) It has a cross-sectional area larger than the sum of the cross-sectional areas of the introduction parts (supply paths 71a to 71d). That is, it is preferable to make the cross-sectional area of the discharge port 214 larger than the total cross-sectional area of the introduction portions 213 (213A and 213B).
  • the supply path to the introduction part 213 (the pipe 13A connected to the preceding stage of the introduction part and the supply paths 71a to 71d) can be easily maintained at a negative pressure, and the medium liquid is supplied from the two electrolytic cells, so that the pressure is increased. Even when it is likely to become unstable, it is possible to easily balance the pressure so that the pressure from the two electrolytic cells is uniform.
  • the discharge port may have a cross-sectional area that is larger than the total cross-sectional area of the introduction portion. Even in this case, the inside of the suction device can be maintained at a negative pressure by the negative pressure generated by the pump provided in the subsequent stage.
  • It has a return port (supply path 72a and 72b) for returning a part of the medium liquid discharged from the discharge port.
  • an excessive medium liquid generated in the subsequent processing process can be processed again, or the discharge amount can be easily adjusted.
  • a plurality of first processing devices for processing the medium liquid
  • a second processing device for processing the medium liquid
  • the suction device gas-liquid delivery part 15
  • the liquid medium supplied from the plurality of first processing devices can be uniformly supplied to the second processing device, and the characteristics of the suction device for adjusting the pressure balance for the plurality of first processing devices can be utilized to the maximum. can do.
  • It has a return path for returning a part of the medium liquid processed in the second processing apparatus to the suction apparatus.
  • a part of the medium liquid excessively generated in the second processing apparatus can be supplied again to the system of the suction apparatus-pump-second processing apparatus, and the discharge amount can be easily adjusted as a system and the second processing can be performed.
  • the pressure can be adjusted and the negative pressure unevenness of the pump can be avoided. Furthermore, it is possible to superimpose the medium liquid on the second processing apparatus.
  • the fine bubble generating apparatus of the present invention includes an electrolysis unit (electrolysis unit 13) that electrolyzes raw water to generate electrolyzed water and decomposition gas (generated gas); A gas-liquid delivery unit (gas-liquid delivery unit 15) that mixes the electrolyzed water and the decomposition gas and delivers a mixed solution; A first pipe (pipe 13A) for supplying the mixed liquid in a sealed state from the electrolysis section to the gas-liquid delivery section; A fine bubble generating part (nano bubble generating part 17) for generating fine bubbles in the mixed liquid supplied from the gas-liquid delivery part by physical collision action; A second pipe (pipe 15A and 16A) for supplying the mixed liquid in a sealed state from a gas-liquid delivery part to the fine bubble generating part; And a pump (pump 16) provided on the second pipe and pumping the mixed liquid to the fine bubble generating device.
  • electrolysis unit electrolysis unit 13
  • a gas-liquid delivery unit gas-liquid delivery unit 15
  • a first pipe for supplying the mixed liquid in
  • a moderate pressure is applied to the appropriate place, such as a closed system from the electrolysis unit to the microbubble generation unit, without applying a large pressure to the electrolysis unit and applying a certain amount of pressure to the microbubble generator. Can be controlled to add.
  • the pressure in the first pipe is a negative pressure.
  • the negative pressure referred to here means an average value of pressure, and includes a temporary positive pressure.
  • the pressure in the first pipe is It is characterized by -15 to +15 kPa.
  • the pressure is maintained at a value close to zero ( ⁇ 5.0 to 5.0 kPa, more preferably about ⁇ 0.5 to +0.5 kPa) in order to reduce the influence on the electrolytic cell. It is preferable.
  • the pressure in the second pipe is a positive pressure.
  • the pressure in the second pipe is preferably ⁇ 15 to +15 kPa.
  • this pressure is an average value, and the pressure may temporarily be outside the numerical range.
  • the average value is preferably maintained at a positive pressure (0.0 to 15.0 kPa, more preferably about 2.0 to 10.0 kPa).
  • This value is particularly a numerical value for the pipe (pipe 15A) in the upstream stage of the pump, and it is preferable that the pressure is higher in the pipe (pipe 16A) in the downstream stage of the pump.
  • the pressure in the first pipe (pipe 13A) was 0.0 kPa and the pressure in the second pipe (pipe 15A) was 6.0 kPa. From this, it was confirmed that the pressure was well divided by the swirling flow of the gas-liquid delivery unit 15.
  • the gas-liquid delivery part is It is characterized by generating vortex flow by high-speed swirling.
  • the electrolysis unit has a plurality of electrolytic cells,
  • the gas-liquid delivery unit mixes the electrolyzed water supplied from the plurality of electrolyzers and the cracked gas and delivers the mixed liquid.
  • the gas-liquid delivery part absorbs the pressure difference generated between the plurality of electrolytic cells, and the electrolyzed water and the decomposition gas can be delivered from the plurality of electrolytic cells with substantially uniform pressure. It is possible to eliminate as much as possible the problems of pressure concentration.
  • the plurality of electrolytic cells have a plurality of discharge ports,
  • the gas-liquid delivery section takes in the mixed liquids respectively supplied from the plurality of discharge ports from a plurality of corresponding supply ports.
  • the electrolysis unit 13 has one electrolytic cell, but it may have two or more electrolytic cells.
  • the mixed water generated gas and electrolyzed water
  • the gas-liquid delivery unit 15 also plays the role which mixes the liquid mixture manufactured with the some electrolytic vessel equally.
  • the cathode chamber 52 is cleaned, but it is not always necessary.
  • the process of replenishing and draining the raw water to the circulation tank 63 is performed at least once, more preferably a plurality of times.
  • the generated gas and the mixed gas are mixed as a mixed gas.
  • a gas containing chlorine gas accumulated in an upper layer in the external tank is used as the mixed gas. It is also possible to supply. Thereby, the chlorine concentration in mixed water can further be raised.
  • the medium liquid is supplied to the nanobubble generation unit 7 and is discharged from the bubble electrolyzed water providing unit 18 as it is, so as to generate a so-called continuous type fine bubble liquid.
  • generate a fine bubble liquid by what is called a batch type system which stores a medium liquid and a fine bubble liquid in a tank, and circulates the nanobubble production
  • a storage tank for storing fine bubble water may be provided at the subsequent stage of the bubble electrolyzed water providing unit 18.
  • the high-speed stirring is performed by the high-speed turning in which the gas-liquid delivery unit 15 travels in one direction, but the present invention is not limited to this.
  • high-speed stirring may be performed by generating turbulent flow or swirling blades.
  • production part were comprised were described.
  • the present invention is not limited to this, and the fine bubble generating device, the gas-liquid delivery part, the first pipe, the pump, the second pipe, and the fine bubble generating part having various configurations are used. You may make it comprise a production
  • the present invention can be used for, for example, a nanobubble generating device that generates nanobubble water containing nanobubbles, a bubble electrolyzed water generating device that generates bubble electrolyzed water, and the like.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Saccharide Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

[Problème] Pour permettre d'augmenter la quantité de microbulles contenues dans une solution de milieu. Le dispositif d'aspiration selon la présente invention est caractérisé en ce que, dans le cas où deux surfaces d'extrémité dans un cylindre sont supposées être une première face et une seconde face, le dispositif d'aspiration est pourvu : d'une partie cylindrique qui permet à une solution du milieu fournie à celui-ci à partir d'une pluralité de trajets d'avancer vers la seconde face à partir de la première face; une pluralité de sections d'introduction qui introduisent la solution du milieu dans la partie cylindrique à partir de la première face ou du voisinage de la première face de façon à provoquer le tourbillonnement de la solution du milieu à l'intérieur de la partie cylindrique; et un orifice de décharge situé au centre ou au voisinage du centre de la seconde face.
PCT/JP2017/026633 2016-07-24 2017-07-24 Générateur de microbulles, procédé de génération de microbulles, dispositif d'aspiration et système d'aspiration WO2018021217A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP17834223.4A EP3488918B1 (fr) 2016-07-24 2017-07-24 Générateur de microbulles
SG11201900325TA SG11201900325TA (en) 2016-07-24 2017-07-24 Fine bubble generating apparatus, fine bubble generation method, suction device, and suction system
CN201780044066.2A CN109562337B (zh) 2016-07-24 2017-07-24 微细气泡生成装置、微细气泡生成方法、抽吸装置以及抽吸系统
ES17834223T ES2945982T3 (es) 2016-07-24 2017-07-24 Generador de microburbujas
AU2017301292A AU2017301292C1 (en) 2016-07-24 2017-07-24 Microbubble generator, microbubble generating method, suction device, and suction system
US16/320,373 US11745149B2 (en) 2016-07-24 2017-07-24 Fine bubble generating apparatus, fine bubble generation method, suction device, and suction system
KR1020197005359A KR20190044623A (ko) 2016-07-24 2017-07-24 미세 기포 생성 장치, 미세 기포 생성 방법, 석션 장치 및 석션 시스템
MYPI2019000400A MY194988A (en) 2016-07-24 2017-07-24 Fine bubble generating apparatus, fine bubble generation method, suction device, and suction system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2016-144996 2016-07-24
JP2016144996 2016-07-24
JP2017116388A JP6343069B2 (ja) 2016-07-24 2017-06-14 微細気泡生成装置及び微細気泡生成方法
JP2017-116388 2017-06-14

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WO2020138248A1 (fr) * 2018-12-25 2020-07-02 株式会社御池鐵工所 Dispositif de fabrication de bulles ultrafines et dispositif de préparation d'eau à bulles ultrafines
CN111617501A (zh) * 2019-02-28 2020-09-04 佳能株式会社 超细气泡生成方法、超细气泡生成装置以及超细气泡含有液
JP7457193B1 (ja) 2023-08-18 2024-03-27 旭有機材株式会社 渦流式流体混合器
JP7457194B1 (ja) 2023-08-18 2024-03-27 旭有機材株式会社 渦流式流体混合器

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JP2001276589A (ja) * 2000-03-30 2001-10-09 Nittetsu Mining Co Ltd エアレータ
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WO2020138248A1 (fr) * 2018-12-25 2020-07-02 株式会社御池鐵工所 Dispositif de fabrication de bulles ultrafines et dispositif de préparation d'eau à bulles ultrafines
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JP7457194B1 (ja) 2023-08-18 2024-03-27 旭有機材株式会社 渦流式流体混合器

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