Nanobubble generator patents

rexresearch.com

NANOBUBBLE GENERATOR PATENTS

Related : ANZAI: Nanobubble Generators

NANOBUBBLE GENERATING NOZZLE AND NANOBUBBLE GENERATOR
US2019134574

To provide a nanobubble generating nozzle that is compact and capable of generating nanobubbles with high efficiency. The problem is solved by a nanobubble generating nozzle and a nanobubble generator comprising this nanobubble generating nozzle. The nanobubble generating nozzle comprises an introduction part for introducing a mixed fluid of a liquid and a gas into an interior thereof, a jetting part for feeding out the mixed fluid containing nanobubbles of the gas, and a nanobubble generating structure part for generating nanobubbles of the gas, between the introduction part and the jetting part. The nanobubble generating structure part comprises a plurality of flow paths having different cross-sectional areas through which the mixed fluid of the liquid and the gas is passed, in an axial direction of the nanobubble generating nozzle.

Nano-bubble and micro-bubble generation system with feedback circuit
US2019134574

To provide a nanobubble generating nozzle that is compact and capable of generating nanobubbles with high efficiency. The problem is solved by a nanobubble generating nozzle and a nanobubble generator comprising this nanobubble generating nozzle. The nanobubble generating nozzle comprises an introduction part for introducing a mixed fluid of a liquid and a gas into an interior thereof, a jetting part for feeding out the mixed fluid containing nanobubbles of the gas, and a nanobubble generating structure part for generating nanobubbles of the gas, between the introduction part and the jetting part. The nanobubble generating structure part comprises a plurality of flow paths having different cross-sectional areas through which the mixed fluid of the liquid and the gas is passed, in an axial direction of the nanobubble generating nozzle.

A micro -nano bubble generator for handling coating cloud
CN208791234

The utility model discloses a micro -nano bubble generator for handling coating cloud, including wastewater disposal basin, first pipeline, first control valve, vapour and liquid separator, detectiondevice, mixing pump, mounting bracket, bubble generator and second pipeline, the wastewater disposal basin top is equipped with first pipeline, first pipeline surface is equipped with the first control valve, the first control valve can be dismantled with first pipeline and be connected, first control valve top is equipped with vapour and liquid separator, the vapour and liquid separator top is equipped with detection device, the detection device right side is equipped with the mixing pump, the mixing pump is connected with vapour and liquid separator through first pipeline. This a micro -nanobubble generator for handling coating cloud, through be equipped with detection device and foam -rubber cushion on equipment, micro -nano bubble generator function is various, and detection device can detect out the flow and the pressure of coating cloud waste liquid, and the potential safety hazard is low, and just micro -nano bubble generator is when the operation, and the mixing pump noise isless, can not cause sound pollution.

MICRO-NANOBUBBLE GENERATOR AND GENERATION METHOD OF MICRO-NANOBUBBLE
JP2019037965

To provide a new unconventional micro-nanobubble generator or a generation method of micro-nanobubbles.SOLUTION: In a micro-nanobubble generator 1 including a liquid supply part 12 for supplying liquid W for generating micro-nanobubbles, and a micro-nanobubble generation part 11 for moving a rushing piece near the interface of the liquid W, a rushing frequency of the rushing piece into the liquid interface is adjusted to become or higher than a prescribed frequency, or travel speed of the rushing piece is adjusted to become or higher than prescribed speed, to thereby generate micro-nanobubbles (microbubbles MB, nano-bubbles

SYSTEM, DEVICE, AND METHOD TO MANUFACTURE NANOBUBBLES
US2019083945

Systems, devices, and methods for manufacturing nanobubbles are disclosed herein. In an embodiment, a nanobubble generator system includes a medium, wherein in the medium is a liquid medium or a semi-liquid medium. A device is immersed in the medium. The device includes a ceramic membrane having a first surface and an opposing second surface, and pores extending through the membrane from the first surface to the second surface, and a hydrophobic porous coating layer disposed on the first surface of the membrane. The system includes a gas source for providing a gas to the medium. In operation, the gas enters pores on the second surface of the membrane and exits the coating layer in the form of nanobubbles.

NANO BUBBLE GENERATOR
KR20180131664

The present invention relates to a nanobubble generator which has a mixing chamber, a helical splitter, and a saturation tank at the rear end of a pump, circulates a gas-liquid mixture from the saturation tank to the mixing chamber, and generates nanobubbles. The nanobubble generator comprises: a mixing chamber for mixing a gas-liquid mixture; a helical splitter for generating bubbles from the gas-liquid mixture introduced from the mixing chamber; and a saturation tank for storing the bubbles generated by the helical splitter discharging some of the bubbles and circulating the remainder to the mixing chamber. The nanobubble generator has a structure in which the mixing chamber, the helical splitter, and the saturation tank are connected to each other and is configured in a circulation type such that nanobubbles can be produced with a simple structure with a small size.

NANO-BUBBLE GENERATOR USING MULTIPLE BAMBOO FILTERS
KR101892134

The present disclosure relates to an apparatus for generating nanobubbles of a gas in a liquid, the apparatus including: 00 (a) an outer tube; (b) a porous inner tube coaxially located within the outer tube that is at least partially occluded so as to define one or 00 O more liquid flow paths through the inner tube; (c) a pair of end assemblies attached to respective first and second ends of the outer tube, each end assembly having an opening in fluid communication with the one or more liquid flow paths so as to allow a flow of liquid in an axial direction through the apparatus; and, (d) a gas inlet for allowing a flow of gas into a chamber formed between the outer and 00 inner tube, the flow of gas permitted to permeate through the porous inner tube into the one or more liquid flow paths, wherein, as the O gas permeates through the porous inner tube, nanobubbles of gas are generated which become entrained in the liquid flow.

Nano-bubble and micro-bubble generation system with feedback circuit
KR101877506

The present invention relates to a nanobubble and microbubble generation system having a feedback circuit unit and, more specifically, to a nanobubble and microbubble generation system having a feedback circuit unit, which generates nanobubbles or microbubbles through a plurality of bubble generators and includes the feedback circuit unit to maximize bubbling efficiency in comparison with the number of components of the bubble generator and precisely control the size of target bubbles through a bubble selection circuit unit. To this end, according to the present invention, the nanobubble and microbubble generation system comprises: an inlet pipe receiving water; an outlet pipe discharging the water; a circulation pump guiding inflow and outflow of the water between the inlet and outlet pipes; a feedback pipe branched from the outlet pipe to be connected to the outlet pipe of the rear end side of the circulation pump to be able to communicate with one side of the inlet pipe; an air inlet pipe connected to one side of the feedback pipe to be able to communicate with the feedback pipe so as to receive air; a first cIIontrol valve installed on one side of the inlet pipe to control the inflow rate of water flowing from the inlet pipe; a second control valve installed on one side of the outlet pipe to control the outflow rate of water discharged to the outlet pipe, and the pressure inside the outlet pipe; a bubble generator connected to one side of one or more of the inlet pipe, the feedback pipe, and the outlet pipe to generate bubbles; a pressure sensor installed at the front and rear ends of the first and second control valves to detect the pressure inside each pipe; and a controller receiving pressure detection data from the pressure sensor and controlling the opening degree of the first and second control valves in accordance with the size of the target bubbles to be discharged.

NANO BUBBLE GENERATOR FOR BATHTUB OR SINK WITH CLEANING AND STERILIZING FUNCTION
KR101869487

The present invention relates to a nanobubble generator for a bathtub or a sink with cleaning and sterilization functions. According to the present invention, the nanobubble generator for a bathtub or a sink comprises: a pressing pump and a multistage mixer sequentially disposed on at least one pipeline; a circulation pipe, connecting inlet and outlet sides of the pressing pump, disposed on the pipeline; and a gas supply unit supplying predetermined external air to one side of the circulation pipe connected to the inlet side of the pressing pump. The gas supply unit and the circulation pipe are connected through a three-way valve, and the three-way valve has a structure of a Venturi pipe with a wide inlet and outlet and a narrow inner part along the circulation pipe, thereby allowing the gas supplied from the gas supply unit to be autonomously sucked.

Nano-bubble generator
KR20180071617

The present invention relates to a nanobubble generator capable of improving generation efficiency of a nanobubble; and providing an economic profit with a mass production structure. The nanobubble generator is stored in a pipe-shaped body having an inlet for receiving mixed water of water and air from the outside, and an outlet for discharging the mixed water to the outside; and generates the nanobubble by applying collision weight and transfer pressure to the mixed water while transferring the mixed water. The nanobubble generator comprises collision plates and a connection rod. A plurality of the board shaped collision plates are provided in the direction, with intervals therebetween, intersecting the transfer direction of the mixed water inside the pipe-shaped body, include an outer circumference surface by dividing an inner space of the pipe-shaped body into a plurality of numbers, and form a passage, through which the mixed water is transferred, on a part. The connection rod connects the collision plates. The connection rod is positioned in the center of the collision plates; and connects and fixes the collision plates. The outer circumference surface of the collision plates has a customized shape in order to adhere to an inner circumference surface of the pipe-shaped body. The nanobubble generator forms the passage of the mixed water by respectively forming a recess having an interval with the inner circumference surface of the pipe-shaped body on the part of the outer circumference surface of the collision plates.

A nano bubble generator and the Manufacturing device
KR20180071616

The present invention relates to a nanobubble generator comprising: a plurality of semicircle first elements which are arranged with a predetermined interval along a movement direction of mixed water; a plurality of semicircle second elements which are connectively arranged with an interval to be faced to the first elements to constitute a circle; and a connection rod which connects the first elements and the second elements wherein the first and second elements and the connection rod are integrally formed. A horizontal uneven unit is injection-molded on a surface of the first element. A device for manufacturing the nanobubble generator comprises a fixed mold and a moving mold. The fixed mold includes a mold space of which an upper part is opened and the second elements are injection-molded therein, and arranges an injection port into which an injection material is injected. The moving mold is positioned on an upper part of the fixed mold, is combined and separated by performing linear movement which is closed and separated in a lower mold side direction, and includes a mold space, of which a lower part is opened and the first elements are injection-molded therein. The moving mold includes: a first molding member and a second molding member, and a first moving member and a second moving member. The first molding member and the second molding member divide the mold space of the moving mold by dividing the same based on a center. The first moving member and the second moving member are able to form and open the mold space of the moving mold by closing and separating the first molding member and the second molding member so as to combine and separate the same. Horizontal uneven molding units having the length in the direction in parallel with a linear movement direction of the first molding member and the second molding member are respectively positioned in the mold space of the first molding member and the second molding member. The present invention is able to improve productivity.

Nano-bubble generator and the methode
KR20180038828

Provided by the present invention are a nanobubble generator and a manufacturing method thereof to: improve the generation efficiency of nanobubbles by remarkably increasing the application area of a shear pressure and a collision load on mixed water by a coating film fused on the surface of a collision plate to divide a transfer path spatially and apply a collision load to mixed water; and realize economic gains through increased productivity especially by simplifying and standardizing the manufacturing process of a collision plate. The nanobubble generator by the present invention has a collision plate which: is included in a transfer path for transferring mixed water; divides the transfer path spatially; and generates nanobubbles by applying a collision load to the mixed water. The collision plate of the nanobubble generator comprises: a main body of a board shape which divides a transfer path spatially and has a penetration hole at a part for the mixed water to pass through by being arranged to have an interval in the direction orthogonal to the feeding direction of the mixed water on the transfer path; and a coating film which is formed of a synthetic resin material coated by being fused in a mesh shape on the surface of the main body.

Nano-bubble generator
KR20180038827

Provided is a nanobubble generator to generate microbubbles by micronizing into a nano size by applying collision and pressure to air mixed in a process of moving mixed water in which water and air are mixed. The nanobubble generator comprises: a main body of a pipe shape which has an inlet of receiving mixed water of water and air from the outside and an outlet of discharging the mixed water; a transfer path which is arranged between the inlet and the outlet in the main body and enables the mixed water to be transferred; and a generation means which generates nanobubbles by applying a collision load and a transfer pressure to the mixed water. The generation means of the nanobubble generator comprises: collision plates of a board shape which are arranged in the direction intersecting with the feeding direction of the mixed water in the main body, have an outer circumferential surface of dividing the internal space of the main body by being fitted and inserted into the main body, and have a penetration hole formed to move while mixed water passes through a part; and a separation protrusion piece which is formed to protrude from the surface of the collision plates and is formed to have an interval while being in contact with the surface of the collision plate near an end of another collision plate.

KR20180038829
Nano-bubble generator and the methode

Provided by the present invention are a nanobubble generator and a manufacturing method thereof to: improve the generation efficiency of nanobubbles by remarkably increasing the application area of a shear pressure and a collision load on mixed water by a colliding body formed to apply a collision load to the mixed water by dividing a transfer path spatially; and realize economic gains through increased productivity by simplifying and standardizing the manufacturing process of the colliding body. The nanobubble generator has a colliding body which divides a transfer path spatially by being included in the transfer path of transferring mixed water and generates nanobubbles by applying a collision load to the mixed water. The colliding body of the nanobubble generator comprises: a main body of a mesh shape which divides a transfer path spatially by being arranged to have an interval in the direction orthogonal to the feeding direction of the mixed water on the transfer path and has a mesh shape having a penetration hole in one part so that the mixed water passes therethrough; and a coating film which is formed of a synthetic resin material coated by being fused in a board shape on the surface of the main body.

Nano-bubble generator
KR20180026130

The present invention relates to a nanobubble generator capable of improving the efficiency of nanobubble generation as well as creating economical profits by increasing productivity through a simple structure and miniaturization since the generator is set to generate nanobubbles by reducing mixed air up to a nanoscale unit through the application of impacts and pressure during a procedure of transferring a mixture of the air and water. To achieve the purpose, the nanobubble generator comprises a generating unit having a transfer passage for the mixed water and applying transfer pressure and an impactive load to the water to generate nanobubbles. The generating unit comprises: plate-shaped impact bodies arranged at intervals in a direction crossing with a transferring direction of the mixed water at right angles, and including a through hole formed in a part to be penetrated by the water; and lattice rings interposed between the impact bodies, and forming a transfer space for the mixed water between the impact bodies. The impact bodies comprise: a porous mesh including a plurality of through holes; and a closing film placed on a side of the porous mesh to close the through holes, and including the through hole.

NANO BUBBLE WATER GENERATING METHODE
KR20170107119

The present invention relates to a method for producing nanobubble water. More specifically, the present invention relates to a method for three-dimensionally producing nanobubble water, intended to output nanobubble water from gas and fluids by producing fine particulate bubbles with 10 m or less particle diameter using a microbubble generator. To this end, nanobubbles are produced by dualizing a nanobuble production part and then are interlocked with a single driving part. The single nanobubble production part induces release and diffusion of the produced nanobubbles in a form of nanobubble water with low pressure for short distance. The other nanobuble production part makes the produced nanobubbles straightly sprayed out in the form of nanobubble water with high pressure for long distance.

MICRO-NANOBUBBLE GENERATOR AND PIPE WASHING METHOD
JP2017176924

PROBLEM TO BE SOLVED: To provide a micro-nanobubble generator capable of adjusting the size and the number of micro-nanobubbles in a wide range, and to provide a pipe washing method using the micro-nanobubble generator.SOLUTION: A micro-nanobubble generator mixing a gas into water supplied from a water supply port 11 and outputting water containing gaseous micro-nanobubbles from a water output port 12 includes a first mixing chamber 13 and a second mixing chamber 14 disposed in a water passage direction from the water supply port 11 to the water output port 12 in this order. The first mixing chamber 13 and the second mixing chamber 14 have internal spaces wider than an inlet and an outlet between inlets 13a, 14a and outlets 13b, 14b in respective water passages. The first mixing chamber 13 has a gas flowing-in passage 15 flowing-in the gas into the water passage.

NANO BUBBLE GENERATOR
KR20170100707

The present invention relates to a nanobubble generator, and more specifically, to a nanobubble generator, which generates very small particles having the size of 10 m or less with gas and a liquid by using a microbubble generator, and has dual nanobubble generating parts to enable nanobubbles to be emitted from a region close to the nanobubble generator and from a far-distance region, respectively, and at the same time, to lower the temperature of the gas introduced from the outside through heat exchange in the region from which the nanobubbles are discharged.

NANO BUBBLE GENERATOR USING A porous membrane
KR20170093299

Disclosed is a nanobubble generator. The nanobubble generator comprises: a first flow path which includes an injection opening for injecting a liquid and an emission opening for emitting the liquid injected through the injection opening, and in which part or the entire flow path consists of a porous membrane; and an injection unit connected to the injection opening and injecting the liquid into the first flow path through the injection opening. A gas is injected into the first flow path through the porous membrane. The injected gas grows into bubbles from the inner surface. The bubbles are separated from the inner surface of the porous membrane by a flow of the liquid and then supplied into the first flow path. By using the nanobubble generator, nanobubbles can be manufactured in an easy manner so manufacturing costs can be reduced.

NANO BUBBLE GENERATOR USING A PARTICLE
KR20170093304

Disclosed is a nanobubble generator. The nanobubble generator comprises: a chamber having an internal space filled with particles, and including an injection opening for injecting a liquid and a liquid-gas mixture, and an emission opening for emitting the liquid or the liquid-gas mixture injected through the injection opening; and an injection unit connected to the injection opening to be ventilated with a fluid and injecting the liquid or the liquid-gas mixture into the chamber. The particles form micro gaps between respective particles in the internal space of the chamber. By using the nanobubble generator, nanobubbles can be manufactured in an easy manner so manufacturing costs can be reduced.

APPARATUS, SYSTEM AND METHOD FOR GENERATING NANOBUBBLES FROM GASES AND LIQUID SOLUTIONS
WO2017096444

A compact apparatus for generating nanobubbles is more efficient, technically, operationally and economically, for use in processes in all applications mentioned. The apparatus has an efficient nanobubble generator/stabiliser, capable of keeping the reagents for a longer period of time in the pollutant mass, by virtue of the gaseous nucleation effect. The nanobubbles are characterised by having a gaseous core and nanometric diameters. By their own nature, nanobubbles have a high specific surface area and high mass transfer efficiency. Nanobubbles are generated in the apparatus in two hydrodynamic cavitation stages. In the first stage, the liquid fluid is mixed with air or oxidising gases, forming macrobubbles, bubbles and ultrafine bubbles. In the second cavitation stage, an electric motor actuates a rotor that urges the fluids against a static, perforated device, causing the bubbles to collapse and nanobubbles to form and be dimensionally stabilised.

A hollow fiber membrane module comprising an integrated nano-bubble generator and a membrane filtration plant comprising the same
KR101718100

The present invention relates to a hollow fiber membrane module used in membrane filtration apparatuses. More specifically, the present invention relates to a hollow fiber membrane module including an integrated nanobubble generator, and to a membrane filtration apparatus including a plurality of the hollow fiber membrane modules including the integrated nanobubble generator. To this end, the membrane filtration apparatus includes the plurality of hollow fiber membrane modules, a head (160), and a plurality of distribution pipes

MICRO AND NANO BUBBLE GENERATOR
KR20160068530

The present invention relates to a micro and nanobubble generator which is capable of effectively generating micro and nanobubbles. In addition, the micro and nanobubble generator has a simple structure so the micro and nanobubble generator can be easily manufactured. Further, the micro and nanobubble generator has superior durability so additional maintenance costs are not required. The micro and nanobubble generator includes: a feeding pump for supplying pure water; an air injector supplying air to the pure water supplied through the feed pump; a pressure pump for pressing air-absorbing bubble water to be supplied; a rotary separator for transferring large-sized bubbles to a central portion by using centrifugal force and gravity difference while rotating the pressed bubble water at a high speed such that the bubble water is discharged upwards; a bubble separator coupled to an upper portion of the rotary separator to separate the large-sized bubbles moving up to the outside to remove the large-sized bubbles; and a diaphragm valve for forming micro and nanobubbles from the bubble water discharged from the rotary separator.

A nanobubble generator and applications thereof
CN105347519

A nanobubble generator and applications thereof are disclosed. The nanobubble generator comprises high-speed rotor impellers, micropore aerators and an air feeding pipe. The micropore aerators are disposed at an air discharge end of the air feeding pipe. The high-speed rotor impellers are disposed on the air feeding pipe. The nanobubble generator is advantageous in that: (1) the high-speed rotor impellers and the micropore aerators are alternatively arranged, thus increasing the contact area of air and residue liquid to be treated in an aeration reaction tank in a laboratory carbon tetrachloride separating system, and increasing the treating efficiency; (2) rotational symmetric arrangement of the high-speed rotor impellers facilitates uniform distribution of air bubbles in the aeration reaction tank so that treatment of the residue liquid is uniform; (3) the high-speed rotor impellers are perpendicular to the air feeding pipe, thus increasing the shearing force of the impellers and increasing the breaking efficiency of the bubbles; and (4) the micropore aerators are of a membrane type, pores are open during aeration, and the pores are closed by membranes during off-working states, thus protecting the pores from being clocked by particles in the residue liquid.

Nanobubble hydrogen water producing machine
CN105110446

The present invention discloses a nanobubble hydrogen water producing machine. The machine comprises a tank body, a hydrogen gas supply pipe, a water supply pipe, a hydrogen generator, a pressure pump, a dissolved air tank, a nano hydrogen bubble generator and a bubble water pipe. The nano hydrogen bubble generator comprises a pipeline and diaphragms. A differential pressure hole used for generating pressure differential is formed in each of the diaphragms, so that pressure is reduced to saturated vapor pressure at the temperature of water; then hydrogen molecules in the water are vaporized to produce nano hydrogen bubbles; and finally, super-saturated hydrogen-enriched water is obtained. Hydrogen-enriched water is obtained by using a physical method; chemical contamination is avoided; hydrogen gas is dissolved into water with high concentration in the form of nano hydrogen bubbles, so that super-saturated hydrogen-enriched water is formed for being stored in a super-saturated hydrogen-enriched water tank; and the hydrogen concentration can reach 2.6 PPM, which is much higher than 1.0 PPM in japan.

NANOBUBBLE WATER/FOAM GENERATOR
JP2014226616

PROBLEM TO BE SOLVED: To provide a device with a simple configuration and easy handling which is capable of generating nanobubble water and foam by supplying predetermined gas to water or a surfactant solution.SOLUTION: A nanobubble water/foam generator supplies gas to be fed from a gas source into water or a predetermined solution in a container 2. The container 2 includes a bottom plate 11, and side plates 14 and 15 vertically disposed around the circumference of the bottom plate 11. The bottom plate 11 is provided with a blow-off nozzle 12 that permits blow off of the air. A porous plate 12a is disposed at the blow-off nozzle 12. Top portions of the side plates 14 and 15 are respectively provided with jet holes 16a that allow an air flow to be jetted out so as to form an air curtain.

GENERATION METHOD OF MICRO-NANOBUBBLE, GENERATOR OF MICRO-NANOBUBBLE AND GENERATION DEVICE OF MICRO-NANOBUBBLE
JP2014231046

PROBLEM TO BE SOLVED: To provide a generation method of micro-nanobubbles, a generator of micro-nanobubbles and a generation device of micro-nanobubbles where microbubbles are stably generated although a pump is compact and a gas supply amount is minute and, at the same time, a part of generated microbubbles are efficiently converted into nanobubbles in a same operation.SOLUTION: A generation method of micro-nanobubbles comprises: a step to generate a gas-liquid two phase swirl flow in a two phase swirl flow type micro-nanobubble generator; a step to discharge the gas-liquid two phase swirl flow into an outer liquid from the discharge hole of the micro-nanobubble generator; and a step to transfer the discharged microbubbles in the gas-liquid two phase swirl flow along the outer wall surface of the micro-nanobubble generator.

System and method for generating nanobubbles
US2014191425

Provided is a nanobubble generating system and a nanobubble generating method in which nanobubbles exist stably in a liquid phase by a very simple constitution and a very simple process. A nanobubble generating system has a generation chamber for accommodating a gas phase part existing in the upper side and a liquid phase part in contact with the lower side of the gas phase part under sealed condition, a supersaturated dissolved liquid generating device for generating supersaturated dissolved liquid in which a gas is dissolved in the liquid phase part under supersaturated condition, and a nanobubble generating device for feeding a pressurized gas to said supersaturated dissolved liquid via through-holes having a nano-sized opening size to generate nanobubbles having a diameter smaller than 1 μm.

METHOD, GENERATING NOZZLE AND GENERATOR FOR GENERATING MICRO/NANOBUBBLE
JP5555892

PROBLEM TO BE SOLVED: To provide a method, generating nozzle and generator for generating micro/nanobubble for the purpose of performing clean washing and sterilization by generating a large amount of micro/nanobubbles with only pure water excluding material such as nucleating agent as well as constructing a system for generating micro/nanobubbles without contamination.SOLUTION: A generating method jets solution including dissolved gas from each of two or more outgoing ports and uses a water hammering force developed by mutual collision. A generating nozzle includes: a hollow tube; two or more small through-holes in the peripheral direction of the tube; and discharging ports for micro/nanobubbles at both ends of the tube. The small through-holes are structured so that all extensions passing through the cross-sectional center portions of the small through-holes intersect inside the tube. A generator includes not only the generating nozzle but also components capable of generating micro/nanobubbles in large quantity.

NANO BUBBLE GERERATING DEVICE AND METHOD
KR20130000154

PURPOSE: A nanobubble generator and a method thereof are provided to precisely and easily control bubble size through a variable control of a water supply rate and to vary the size of bubble size according to uses. CONSTITUTION: A nanobubble generator(100) consists of an external casing(110), a rotary body(120), and a driving source(130). The external casing comprises at least one inlet(112) which supplies water with bubbles to inner space. The rotary body comprises an outlet(125) which discharges water discharges water to outside the external case. The driving source provides rotary force rotating the rotary body with a constant rate. By the difference between water supply speed and the rotation speed of the rotary body, bubbles become smaller nanobubble and discharge through the outlet.

BUBBLE MICRONIZING NOZZLE, MICROBUBBLE GENERATOR USING THE SAME...
JP2012096216

PROBLEM TO BE SOLVED: To provide a bubble micronizing nozzle which can effectively generate a high speed flow advantageous for bubble micronization in a high flow rate, thus can dramatically improve the micronizing effect of bubbles, and further can increase the generation amount of the bubbles in a microbubble region or a nanobubble region to a level which has not been achieved conventionally.SOLUTION: A throttle gap material 22Q having a flow guide face 22G formed on the downstream side in a flow direction at a downhill grade and a flow receiving face 22A formed so as to be raised more steeply than the flow guide face 22G to the inside face of a flow passage FP on the upstream side in a flow direction is arranged at the inside of the flow passage FP. An edge part 22E crossing the axial cross section of the flow passage FP from a first position PP toward a second position PS different from the first position PP on the inner circumferential edge in the axial cross section of the flow passage FP is formed at the crossing position between the flow receiving face 22A and the flow guide face 22G, and a throttle gap 21G is formed between the edge part 22E and the inside face of the flow passage FP.

Generator and generating method of ozone nanobubble water
TWI298644

The present invention relates to a generator and a generating method of ozone nanobubble water which make a water conduit connect to a pressurizing water-supplied motor which will pressurize water and make water pass a gas inhalator through a conduit. Because the aperture of the gas inhalator is narrowed, water can pass it fast to cause the negative pressure to inhale the mixed ozone gas generated from the ozone generator. Then, the mixed ozone gas mixes water elementarily to form the preliminary mixture of the gas and water which passes into a container to let the mixed ozone gas be dissolved in water completely to form a kind of water solution containing high-concentration gas. Then, the water solution flows to a relief valve through a conduit. When the water solution flows into the said valve and the pressure is relieved, the dissolved gas will relief rapidly to form countless tiny nanobubble. As the result, the countless tiny nanobubble can be used to increase the effect of cleaners for decomposing organic pollutants and eliminating microbes and insecticides remained on the vegetables or fruits.

METHOD AND APPARATUS FOR PRODUCING OZONE WATER
JP2011200778

PROBLEM TO BE SOLVED: To provide a method for producing ozone water which maintains oxidation power for a long period of time, and an ozone generator used for the method.SOLUTION: In the apparatus for producing ozone water, an oxygen nanobubble generator 2 mixes the swirl flows of water pumped by a pump 8 through a water introducing pipe 4 with oxygen supplied through an oxygen introducing pipe 5 and causes the oxygen-mixed swirl flows to collide with each other to produce oxygen-nanobubble water. An ultraviolet irradiation part 3 irradiates the oxygen-nanobubble water with ultraviolet rays to produce the ozone water containing ozone nanobubbles.

NANOBUBBLE GENERATOR
JP2011156526

PROBLEM TO BE SOLVED: To provide an apparatus capable of highly efficiently and in highly concentrated form producing a liquid containing nanobubbles in a large amount using a simply structured device. SOLUTION: Gas is sheared to generate nanobubbles and to make them penetrate into liquid by injecting the pressurized gas into the liquid through a nozzle so as to become a high-speed gas stream to generate friction between the gas and the liquid. An area of contacting the gas stream with the liquid can be expanded while suppressing the decrease of gas stream speed by hitting the gas stream against a curved surface so that generation efficiency of the nanobubbles is enhanced to increase its concentration in the liquid.

NANOBUBBLE GENERATION METHOD AND NANOBUBBLE GENERATOR
JP4914399

PROBLEM TO BE SOLVED: To provide a nanobubble generation method where pressure is regulated by changing the diameter of a diameter reduction part, so as to easily and securely generate nanobubbles, and to provide a nanobubble generator with a simple structure. ;SOLUTION: Piping 7 for introducing a pressurized liquid into which a pressurized liquid obtained by dissolving a gas under pressure is introduced and piping 9 for generating nanobubbles are connected via a flow rate regulation valve 10, and the diameter of the discharge flow of a diameter reduction part 12 provided at the inside of the piping for generating nanobubbles is set in such a manner that the ratio between the pressure (P1) at the inside of the piping for introducing a pressurized liquid and the pressure (P2) at the inside of the piping for generating nanobubbles, (P2/P1) becomes a ratio for generating nanobubbles.

MICRO-NANOBUBBLE BATHTUB WATER PRODUCTION METHOD AND MICRO-NANOBUBBLE BATHTUB
US8205277

PROBLEM TO BE SOLVED: To provide a micro-nanobubble bathtub water production method and a micro-nanobubble bathtub economically producing a great volume of micro-nanobubbles with diversified sizes. ;SOLUTION: In this micro-nanobubble bathtub 1, two types of first and second micro-nanobubble generators (a submerged pump type micro-nanobubble generator 2 and a rotational flow type micro-nanobubble generator 10) generate 2 types of micro-nanobubbles with different size distributions in the upper part and lower part of a micro-nanobubble generation part 34 so as to produce great volume of bathtub water including the micro-nanobubbles with wide size distributions. Part of the micro-nanobubble containing water generated in the lower part is made to flow in the upper-part first micro-nanobubble generator (the rotational flow type micro-nanobubble generator 10) so that the rotational flow type micro-nanobubble generator 10 can generate micro-nanobubbles of smaller size.