KR20230057878A - Apparatus for producing nano-bubble water - Google Patents

Abstract

The present invention relates to an apparatus for generating nanobubbles, which is able to kill harmful germs such as bio aerosol existing indoors and outdoors, reduce product manufacturing cost, and be easily maintained. More specifically, the present invention relates to an apparatus for generating nanobubble, comprising: a first bubble generation unit, which evenly shears gas and fluid introduced from one side, mixes the gas and the fluid by rotating, generates micro bubbles, in which the gas is introduced into liquid, and discharges the micro bubbles to the other side; and a second bubble generation unit, which receives the bubbles generated in the first bubble generation unit through one side, makes the introduced bubbles collide with each other multiple times, and generates nanobubbles by the collisions. The second bubble generation unit includes: a pipe-shaped pipe body having openings on both sides, and having a longitudinal hollow unit formed inside; a vortex pipe having openings on both sides, and having a longitudinal hollow unit inside, and engaged with an inner surface of the pipe body through a shape fitting; a stay plate protruding to be neighboring with the vortex pipe in a longitudinal direction of the vortex pipe to have a diagonal shape to be linked to an inner wall of the vortex pipe on one side, and having the other side forming a certain interval so that a moving path can be formed for fluid bubbles to move; and an induction plate extending the staying time of the bubbles introduced between the pair of stay plates, and inducing the staying bubbles to collide with each other at the intervals for generating a vortex.

Description

Nano bubble generating device {APPARATUS FOR PRODUCING NANO-BUBBLE WATER}

The present invention relates to a device for generating nanobubbles used for sterilization of harmful bacteria such as bioaerosols existing indoors and outdoors.

Each industrial field uses bubble water with increased dissolved oxygen in water, and this bubble water is used in various fields due to its physical and chemical properties such as "gas dissolution effect, self-pressurization effect, and electrification effect". In particular, it is used in various aquaculture and hydroponic cultivation in the fields of fishery and agriculture, used for precise diagnosis in the medical field, and is used in physical therapy, high-purity water treatment, and environmental devices in various fields.

In other words, it is widely used from hot spring bath to cancer diagnosis, and it is known that it regenerates skin and has excellent sterilization effect.

The nanobubbles as described above are generated in various ways such as a swirling liquid flow method, a state mixer method, an ejector method, a venturi method, a pressure dissolution method, an ultrasonic method, an electrolysis method, and a micropore filter method.

General nanobubbles refer to bubbles having a particle size of several tens of nanometers to several micrometers, and these nanobubbles have a low floating rate in water, are easily dissolved in liquid, and remain in liquid for a long time. Therefore, as one of the methods for increasing the concentration of dissolved oxygen in water, research on the generation of nanobubble water that minimizes the size of bubbles (hereinafter referred to as bubbles) is being actively conducted.

For example, Republic of Korea Patent Publication No. 10-2018-0087656 discloses a nano-bubble water generator, but this prior art has a complicated configuration, high product production costs, and disadvantages in maintenance and repair.

Domestic Patent Publication No. 10-2018-0087656 (published date: 2018.08.02.) Domestic Patent No. 10-2184515 (Announcement date: 2020.11.30.) Korean Patent Publication No. 10-2020-141326 (published date: 2020.12.30.)

In order to solve the above-mentioned conventional problems, an object of the present invention is to provide a nanobubble generating device with a simple structure and easy maintenance while lowering the production cost.

In order to solve the above-described technical problem, the nanobubble generating device according to the present invention uniformly shears gas and fluid introduced from one side, and then mixes them with each other by rotation to generate micro bubbles in which gas is introduced into the liquid. The first bubble generating unit 100 discharged in the other direction and the bubbles generated in the first bubble generating unit 100 are introduced into one side, and the introduced bubbles collide with each other multiple times to generate nanoscale It includes a second bubble generating unit 200 for generating bubbles, wherein the second bubble generating unit 200 includes a tubular body 210 open on both sides and inside which a hollow part is formed in the longitudinal direction, both sides open but the outer surface is the same. The vortex tube 220 coupled to the inner surface of the tube body 210 in a form-fitting manner, one side of which is formed to protrude adjacent to each other along the longitudinal direction of the vortex tube 220 so as to have an oblique shape connected to the inner wall of the vortex tube 220, but facing each other The other side of the view extends the residence time of the bubbles introduced between the retention plate 221 and the pair of retention plates 221 forming a movement path through which fluid-type bubbles can move by forming a predetermined gap D. It is characterized in that it includes a guide plate 223 for inducing the bubbles to collide with each other at the interval (D) so that a vortex phenomenon can occur.

In addition, it is preferable that the inclination angle of each of the retention plate 221 and the guide plate 223 forming an oblique shape is formed inside the vortex tube 220 to have a uniform inclination angle.

In addition, the first bubble generating unit 100 is formed in the shape of a hollow enclosure, and on one side is formed a fluid inlet 111 through which inflow water flows and a gas inlet 113 through which air flows, and on the other side, a micro unit A body 110 having a bubble discharge port 115 through which bubbles are discharged and a through hole 117 through which the drive shaft of the motor 150 is inserted, and the inflow water and air introduced into the body 110 are evenly sheared Through the rotational force of the first mixture body 120 and the motor 150 that generate the first mixture fluid, the first mixture body 120 forcibly sucks the first mixture fluid, expands it, and secondly mixes the fluid. and a rotating body 140 generating microbubble units by colliding the fluids secondarily mixed in the second mixing body 130 with each other through the rotational force of the second mixing body 130 and the motor 150. It is desirable to do

According to the present invention, unlike the prior art, when a micro unit is generated through the first bubble generator and supplied to the second bubble generator made of a vortex tube detachably inserted into the tube body, a plurality of micro units are generated in the second bubble generator. Since the vortex phenomenon is implemented several times, it is possible to generate nanobubbles with a relatively simple configuration, thereby reducing product production costs and providing a nanobubble generating device that is easy to maintain.

1 is a conceptual diagram of a nanobubble generating device according to the present invention.
2 is a view showing a first bubble generating unit for the nanobubble generating device according to the present invention.
Figure 3 is an enlarged view showing the first mixture of Figure 2;
Figure 4 is an enlarged view showing a second mixture of Figure 2;
Figure 5 is an enlarged view showing the rotating body of Figure 2;
6 is a view showing a second bubble generator for the nanobubble generator according to the present invention.
7 is a view showing the vortex tube of FIG. 6;
8 is an action relationship diagram of the vortex tube of FIG. 7;

Hereinafter, various embodiments will be described in more detail with reference to the accompanying drawings. The embodiments described in this specification may be modified in various ways. Certain embodiments may be depicted in the drawings and described in detail in the detailed description. However, specific embodiments disclosed in the accompanying drawings are only intended to facilitate understanding of various embodiments. Therefore, the technical idea is not limited by the specific embodiments disclosed in the accompanying drawings, and it should be understood to include all equivalents or substitutes included in the spirit and technical scope of the invention.

Terms including ordinal numbers, such as first and second, may be used to describe various components, but these components are not limited by the above terms. The terminology described above is only used for the purpose of distinguishing one component from another.

In this specification, terms such as "comprise" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded. It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when an element is referred to as “directly connected” or “directly connected” to another element, it should be understood that no other element exists in the middle.

In addition, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be abbreviated or omitted.

Hereinafter, a nanobubble generating device (hereinafter, simply referred to as a 'generating device') according to the present invention will be described in detail with reference to the accompanying drawings.

First, as shown in FIG. 1, the generating device 1 according to the present invention largely includes a first bubble generating unit 100 and a second bubble generating unit 200.

More specifically, as shown in FIGS. 2 to 5 , the first bubble generating unit 100 provides a fluid-type bubble having a micro unit to the second bubble generating unit 200 to be described later. It includes a body 110, a first mixture body 120, a second mixture body 130 and a rotating body 140 as a configuration for the.

For example, the body 110 is molded to have a hollow housing shape as a whole using a metal material with low corrosiveness, and on one side, inflow water supplied from the outside and air supplied through the air pump 300 are supplied, and on the other side, It has a structure in which the generated microbubbles can be discharged.

To this end, on one side of the body 110, a gas inlet 113 connected to the air pump 300 as well as a fluid inlet 111 connected to a pipe (PIPE) to allow inflow water to flow in are formed, so that the body 110 Inflow water and air are supplied to the inside, passing through the first mixture body 120, the second mixture body 130, and the rotating body 140 sequentially to generate bubbles in micro units.

In addition, the bubble outlet 115 connected to one side of the second bubble generator 200 is formed on the other side of the body 110 so that the generated micro bubbles can be discharged and supplied to the second bubble generator 200. Of course, a through hole 117 for inserting the drive shaft of the motor 150 that rotates under the control of a control unit (not shown) is drilled, and through the rotation of the drive shaft, the second mixture body 130 and the rotating body ( 140) has a structure capable of rotating inside the body 110.

In addition, the first mixing body 120 is configured to uniformly shear the fluid (inflow water) and gas (air) introduced into the body 110 to first cyclize them.

To this end, as shown, the first mixture body 120 is fixedly installed on the inner wall of the body 110, and a plurality of protrusions 121 having sharp ends are formed in the direction of the second mixture body 130 to form the second mixture body 120. 130 collides with the pointed end of the protrusion 121 during rotation and has a structure in which release fluids (fluid and gas) can be primarily mixed simultaneously with shearing.

At this time, the ends of the protrusions 121 formed on the first mixture body 120 are disposed adjacent to the second mixture body 130 provided inside the body 110 at a certain distance so as to face each other, and the release fluid moves therebetween. It is preferable to be able to be mixed by.

In addition, the second mixing body 130 provided inside the body 110 so as to be rotatable by the motor 150 forcibly sucks the firstly mixed release fluid by its rotational force, and then secondarily mixes it by expansion. It is possible to improve the miscibility of the release fluid.

To this end, on the outer surface of the second mixture body 130 facing each other with the above-described protrusion 121, a plurality of wings 131 formed in an arc shape are radially arranged around the drive shaft to improve the suction power of the release fluid. And through this forced suction, the effect of blending can also be maximized.

In addition, as shown in the figure, the rotary body 140 provided inside the body 110 so as to be rotatable by the motor 150 has radial protrusions 141 adjacent to each other on the circumferential surface around the drive shaft. When the release fluid, which is secondarily mixed, flows in between the protrusions 141, it collides with the plurality of rotating protrusions 141, and the micro unit in which gas is contained in the fluid and gas-liquid is formed. After the bubbles are generated in the form of a fluid, water is discharged through the bubble discharge port 115 and supplied to the second bubble generator 200.

And, as shown in FIGS. 6 and 7 , the second bubble generating unit 200 is configured to obtain micro bubbles supplied by the first bubble generating unit 100 as nano-sized bubbles. It includes a tube body 210 and a vortex tube 220.

For example, as shown, the tube body 210 is open on both sides, but a hollow part is formed inside for the vortex tube 220 to be inserted in the longitudinal direction, and one side of the opening is connected to the bubble outlet 115 described above, The other open side has a structure through which generated nano-sized bubbles are discharged.

In addition, the other side of the opening is connected to a pipe such as a flotation tank (not shown) so that the generated nanobubbles can be supplied.

In addition, as shown in the figure, the vortex tube 220 detachably inserted into the body 210 in a form-fitting manner includes a plurality of retention plates 221 and a plurality of guide plates 223, which are moving paths for fluid movement. This formation has a structure in which nano-unit bubbles can be generated by colliding the micro bubbles flowing into the hollow part formed in the longitudinal direction inside the vortex tube 220 multiple times.

To this end, the retention plate 221 is formed to extend symmetrically to each other so that one side is connected to the inner surface of the vortex tube 220 to have an oblique shape, and the other side facing each other is predetermined so that the introduced microbubbles can cause a vortex phenomenon. It is arranged to have a spacing (D) of.

In addition, a plurality of retention plates 221 protrude at equal intervals in the longitudinal direction of the vortex tube 220, so that micro bubbles moving from one side of the vortex tube 220 to the other side pass through a plurality of intervals D, They sequentially collide with each other so that they can be changed into nano-sized bubbles, and through this, the microbubbles introduced into the vortex tube 220 can stay.

As shown in the figure, the guide plate 223 is disposed in an oblique shape between the pair of retention plates 221, and the microbubbles introduced into the pair of retention plates 221 rotate to extend the residence time. At the same time as implementing the extension of the number of times that can collide with the retention plate 221 or the guide plate 223 is implemented.

At this time, each angle of the staying plate 221 and the guide plate 223 having the shape of an oblique line has the same angle, but the ends facing each other are in the shape of an oblique line directed toward one side (entrance side) of the vortex tube 220. It is desirable to form

That is, as shown in FIG. 8, when microbubbles are introduced into one side of the inlet side of the vortex tube 220, the bubbles collide with the outer surface of the retention plate 221 and guide the bubbles disposed between the retention plates 221 at the same time. While colliding with the outer surface of the plate 223, it rotates between the pair of staying plates 221 and is directed in the direction of the distance D.

Thereafter, the microbubbles moving at the distance D are moved to the other side of the vortex tube 220 at the same time as a vortex phenomenon rotates within the distance D, and the microbubbles repeatedly perform the above process. The bubbles are split through collisions between the retention plate 221 and the guide plate 223, as well as collisions between them, so that nano-sized bubbles are generated.

As described above, the generating device 1 according to the present invention generates micro units through the first bubble generating unit 100 differently from the prior art, and is detachably inserted into the tube body 210. 220), the vortex phenomenon is implemented multiple times in the second bubble generating unit 200, and nanobubbles can be generated with a relatively simple configuration, thereby reducing product production costs. It has the effect of providing a nanobubble generator with low maintenance and easy maintenance.

As described above, the present invention has been described by specific details such as specific components and limited embodiments and drawings, but these are provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , Those skilled in the art in the field to which the present invention belongs can make various modifications and variations from these descriptions.

Therefore, the spirit of the present invention should not be limited to the described embodiments, and it will be said that not only the claims to be described later, but also all modifications equivalent or equivalent to these claims belong to the scope of the present invention. .

1: Nanobubble generating device according to the present invention
100: first bubble generating unit
110: body 111: fluid inlet
113: gas inlet 115: bubble outlet
117: through hole 120: first mixture
121: protrusion 130: second mixture
131: wing 140: rotating body
141: protrusion 150: motor
200: second bubble generator
210: tube body 220: vortex tube
221: stay plate 223: guide plate
D: Interval

Claims (3)

A first bubble generating unit 100 that uniformly shears gas and fluid introduced from one side and then mixes them with each other by rotation to generate micro-unit bubbles into which gas is introduced into the liquid and discharges them to the other side; and
A second bubble generating unit 200 in which the bubbles generated in the first bubble generating unit 100 flow into one side and collide with each other multiple times to generate nano-sized bubbles by the collision. include,
The second bubble generator 200
A tube body 210 open on both sides but having a hollow inside in the longitudinal direction, open on both sides, but the outer surface is coupled to the inner surface of the tube body 210 in a form-fitting vortex tube 220, one side of which is the inner wall of the vortex tube 220 The vortex tube 220 protrudes adjacent to each other along the longitudinal direction to have an oblique shape, and the other facing side forms a predetermined gap D to form a moving path through which fluid-type bubbles can move. The guide plate 223 extends the residence time of the bubbles introduced between the plate 221 and the pair of retention plates 221, and induces a vortex phenomenon by causing the bubbles to collide with each other at the interval D. ) Nanobubble generating device characterized in that it comprises.
According to claim 1,
The nanobubble generating device, characterized in that the inclination angle of each of the retention plate 221 and the guide plate 223 forming an oblique shape is formed inside the vortex tube 220 so as to have a uniform inclination angle.
According to claim 1,
The first bubble generating unit 100
It has the shape of a hollow enclosure, but on one side, a fluid inlet 111 through which inflow water flows and a gas inlet 113 through which air flows are formed, and on the other side, a bubble discharge port 115 through which micro bubbles are discharged and a motor ( a body 110 having a through hole 117 through which a drive shaft of 150 is inserted;
a first mixture body 120 that uniformly shears the inflow water and air introduced into the body 110 to generate a primary mixed fluid;
a second mixture body 130 that forcibly sucks the fluid primarily mixed by the first mixture body 120 through the rotational force of the motor 150, then expands and secondarily mixes the fluid; and
A rotating body 140 generating microbubble units by colliding the secondly mixed fluids in the second mixing body 130 with each other through the rotational force of the motor 150; nanobubble generation characterized by comprising a Device.

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