KR101284266B1 - Device for generating micro and/or nano bubble based on circulation unit with high solubility of water - Google Patents

Abstract

A micro bubble generator is disclosed. The disclosed microbubble generating device receives a mixture of water and gas, and swings while colliding with water and gas to flow out of the melted water, a melting tank for storing the dissolved water flowing out of the swirling unit, and a molten water is received therein. It may include a nozzle unit for generating fine bubbles in the water. This makes it possible to generate a large amount of fine bubbles of less than 100nm at low power.

Description

DEVICE FOR GENERATING MICRO AND / OR NANO BUBBLE BASED ON CIRCULATION UNIT WITH HIGH SOLUBILITY OF WATER}

The present invention relates to a microbubble generating device using a solid solution seawater based on the turning unit, in detail, by minimizing the load on the pump for supplying water, the turning unit capable of producing a large amount of fine bubbles with a small power The present invention relates to a microbubble generating device using solid-solution seawater based on.

Micro- or nano-sized bubble (MICRO BUBBLE) in the water (hereinafter referred to as "micro-induced") technology that will be used in many fields, including water treatment.

For this reason, research on the micro bubble generator is being actively conducted. For example, Korean Patent No. 10-745851 (July 27, 2007) discloses a bubble generating device for generating bubbles having a size of several micrometers or less. In this Korean patent, the motor unit performs the pumping operation by the control signal of the control unit, by the pumping so that the bath water and air is sucked into the motor unit, and discharges the bath water and air sucked in the motor unit to the bubble generating unit, the bubble generation The part discharges air using an air vent to prevent excessive pressure, and forms bubbles through the bubble discharge module.

In another example, Korean Patent Publication No. 10-2010-0030382 (March 18, 2010) provides smooth operation and reliability of hygiene by allowing the remaining water inside the main pump to be completely discharged after the operation is completed. The microbubble generating device of one type is disclosed to allow the circulation of water as well as to directly use tap water.

However, many technologies for producing fine bubbles have been developed, but as a technology capable of producing a large amount of fine bubbles at low power, technologies for producing bubbles of 100 nm or less will be said to be insufficient.

According to an embodiment of the present invention, an object of the present invention is to provide a micro bubble generator that can increase the amount of micro bubbles generated relative to the amount of fine water and air, and can reduce power consumption.

According to another embodiment of the present invention, an object of the present invention is to provide a microgenerator capable of producing bubbles of 100 nm or less at low power.

According to another embodiment of the present invention, an object of the present invention is to provide a micro bubble generator capable of producing bubbles of 50 nm or less at low power.

The micro-bubble generating device of the present invention for achieving the above object is a swirling unit for receiving a mixture of water and gas, and turning out while colliding with water and gas to flow out the dissolved water; Melting tank for storing the dissolved water flowing out of the swing unit; And a nozzle unit receiving the dissolved water to generate fine bubbles in the water.

According to the present invention, by configuring a device for generating fine bubbles to minimize the load on the pump for supplying water, there is an effect that can produce a large amount of fine bubbles with a small power.

In addition, the size of the micro-bubbles that can be mass-produced at low power can be bubbles of 100 nm or less, and can also generate bubbles of 50 nm or less, and furthermore, there is an effect of generating micro-bubbles of 20 nm size.

1 is a block diagram showing a fine bubble generating apparatus according to an embodiment of the present invention,
Figure 2 is a perspective view of the turning unit of Figure 1,
3 is a cutaway perspective view showing the incision of the turning unit of FIG.
4 is a cross-sectional view of the turning unit of FIG.
5 is a perspective view illustrating the separation chamber of FIG. 1;
6 is a view for explaining the separation chamber and the swing unit of FIG.
7 is a perspective view illustrating the nozzle unit of FIG. 1;
FIG. 8 is a cutaway perspective view showing the nozzle unit of FIG. 7;
9 is a cross-sectional view of the nozzle unit of FIG. 7.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In this specification, when an element is referred to as being on another element, it may be directly formed on another element, or a third element may be interposed therebetween. Also in the figures, the thickness of the components is exaggerated for an effective description of the technical content.

Embodiments described herein will be described with reference to cross-sectional views and / or plan views that are ideal illustrations of the present invention. In the drawings, the thicknesses of films and regions are exaggerated for effective explanation of technical content. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the shapes that are produced according to the manufacturing process. For example, the etched area shown at right angles may be rounded or may have a shape with a certain curvature. Thus, the regions illustrated in the figures have attributes, and the shapes of the regions illustrated in the figures are intended to illustrate specific forms of regions of the elements and are not intended to limit the scope of the invention. Although the terms first, second, etc. have been used in various embodiments of the present disclosure to describe various components, these components should not be limited by these terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprises" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, various specific details have been set forth in order to explain the invention in greater detail and to assist in understanding it. However, those skilled in the art can understand that the present invention can be used without these various specific details. In some instances, it should be noted that portions of the invention that are not commonly known in the description of the invention and are not significantly related to the invention do not describe confusing reasons to explain the present invention.

1 is a detailed block diagram of an apparatus for generating microbubbles using solid solution seawater based on a turning unit according to an exemplary embodiment of the present invention.

Referring to FIG. 1, the microbubble generating device 100 using the solid solution seawater based on the turning unit according to the present embodiment includes a valve 110, a flow meter 120, a water feed pump 130, and a venturi injector. Venturi Injector, 140, may include a swing unit 150, separation chamber 160, the dissolution tank 170, the nozzle unit 180.

According to the microbubble generator using the solid solution seawater based on the turning unit of the present embodiment, the air and water introduced through the venturi injector 140 are mixed, and the mixture of the water and the air is mixed into the turning unit 150. Supplied and rotated. Thereafter, the mixture flowing out of the turning unit 150 flows out into the dissolution tank 170 via the separation chamber 160. Through the above-described series of operations, in the dissolution tank 170, solid solution seawater in which air is much dissolved in water is generated, and the generated solid solution seawater is sprayed through the nozzle unit 180 to generate fine bubbles.

In the present specification, for the purpose of explanation, the term 'mixture' is used to mean any one of the following states.

i) a mixture of water and gas in the form of bubbles

ii) gas dissolved in water

iii) a condition in which the states i) and ii) coexist

In addition, in the present specification, for the purpose of explanation, the terms 'mixture' and the term 'melting water' are used without distinguishing from each other unless there is an advantage to distinguish in particular.

And, in the embodiments described herein, it was described that water and air are mixed, which is exemplary and other gases such as ozone or pure oxygen, but not air, may be mixed with water. On the other hand, the nozzle unit 180 can be used in addition to the nozzle unit of Figure 7 other forms.

The valve 110 may adjust the flow rate of the water flowing into the water supply pump 130 to be described later, the flow meter 120 is operated according to the flow rate of the water flowing into the water supply pump 130, the water supply pump, The flow rate of the water flowing into the 130 may be appropriately adjusted.

The feed water pump 130 may supply the water flowing through the valve 110 to the venturi injector 140 at a predetermined pressure. As will be described later, according to an embodiment of the present invention, while the pressure applied to the water supply pump 130 is minimized, the fine bubbles can be produced in large quantities.

Venturi injector 140 is a tube having a cross-sectional area at both ends of the shape larger than the central cross-sectional area is a component well known to those skilled in the art. Specifically, the venturi injector 140 is configured such that water is introduced into one end thereof and air is introduced into the center thereof. The air introduced into the center of the venturi injector 140 is discharged to the other end of the venturi injector 140 together with the water introduced through one end. Meanwhile, when air is introduced through the venturi injector 140, at least a part of the air may be dissolved in water.

The swing unit 150 may swing the mixture flowing out of the venturi injector 140. While passing through the revolving unit 150, the air can be dissolved in a lot of water. The structure of the swing unit 150 according to an embodiment of the present invention is to discharge the water provided from the pump 130 toward the separation chamber 160, so that the pressure applied to the pump 130 is minimized.

2 to 5, the swing unit 150 according to an embodiment of the present invention is a mixture of the water and air mixture (f1) flowing out of the venturi injector 140 is turned in, turning and turning ( f2) flows into the separation chamber 160.

The swing unit 150 according to an embodiment of the present invention may include a swing main body 151 and a water / air rotation guide unit 159 provided inside the swing main body 151.

The swinging body 151 is a part which forms an appearance of the swinging unit 150. It may be made of a metallic material, but need not necessarily be a plastic injection molding of a transparent or translucent material, and may be made of various other materials.

The pivoting body 151 includes a water / air inlet 153 for receiving a mixture of water and air, a water / air rotation guide unit 159 for mixing well while turning the introduced water and air, and water and Dissolved water discharge unit 155 for discharging the mixture of air is provided.

 According to the exemplary embodiment of the present invention, the pivot body 151 may have a cylindrical shape having the same cross-sectional area in all the sections except for the inner wall surface on which the dissolved water discharge part 155 is formed.

Water / air inlet 153 according to an embodiment of the present invention is formed in the tangential direction of the pivot body 151, the dissolved water outlet 155 is one side wall on the longitudinal central axis of the pivot body 151 Can be formed on. As such, the water / air inlet 153 is positioned to receive in the same direction as the direction of receiving the mixture of water and air received from the venturi injector 140.

A water / air connector 156 may be provided in the water / air inlet 153 to supply water and air to the water / air inlet 153. The water / air connector 156 may have a threaded portion 157, and a conduit positioned between the venturi injector 140 and the turning unit 150 may be screwed by the threaded portion 157. On the other hand, the threaded portion 157 as one embodiment may be installed in a different way the pipeline located between the venturi injector 140 and the turning unit 150, of course.

The water / air rotation guide unit 159 induces the rotation of water flowing into the swinging body 151 through the water / air inlet 153, and counteracts the direction of the incoming water so that pressure is not applied to the incoming water. The water and air can collide with each other while rotating the water in a non-directional direction. This allows more air to melt in the water.

The water / air rotation guide unit 159 may be manufactured separately and coupled to a corresponding position within the pivot body 151, but may also be implemented by injection molding. When implemented by the injection molding method, the water / air rotation guide portion 159 and the swinging body 151 will be made integrally.

Meanwhile, in the present embodiment, the water / air inlet 153 is formed in the tangential direction of the pivot body 151 as described above in order to improve the rotation speed of the water and the air through the water / air rotation guide unit 159. do. Therefore, since the water and the air introduced through the water / air inlet 153 is started immediately without being resisted by the water / air rotation guide unit 159, the rotation speed of the water / air increases. As described above, the pressure applied to the pump 120 is minimized.

Water / air rotation guide portion 159 according to an embodiment of the present invention is a plurality of water / air guide wall 159a to allow the flow of water from the water / air inlet 153 to the dissolved water outlet 155 , 159b).

In the present embodiment, the plurality of water / air guide walls 159a and 159b include the first water / air guide walls 159a and the second water / arranged outside the first water / air guide walls 159a in the radial direction. And an air guide wall 159b. Both the first water / air guide wall 159a and the second water / air guide wall 159b are provided as pipe-shaped tubular bodies.

One end of the first water / air guide wall 159a is fixed to one inner wall surface of the swinging body 151 in which the dissolved water discharge part 155 is formed while the one end thereof surrounds the dissolved water discharge part 155. The molten water discharge part 155 is spaced apart from the other inner wall surface facing one inner wall surface of the swing body 151 is formed.

The second water / air guide wall 159b is disposed radially outward of the first water / air guide wall 159a and is spaced apart from the first water / air guide wall 159a, the one end of which is dissolved. The water discharge part 155 is fixed to the other inner wall surface facing the inner wall surface of one side of the swing body 151, the other end is spaced apart from the inner wall surface of one side of the swing body 151, the molten water discharge portion 155 is formed. Is placed.

With the above-described configuration, water and air introduced into the swinging body 151 through the water / air inlet 153 are separated between the second water / air guide wall 159b and the inner circumferential surface of the swinging body 151. The water and air guide wall 159b and the first water / air guide wall 159a and the second water / air guide wall 159b move strongly while moving inside, so that water and air collide with each other and have high solubility. Dissolved water is generated, and the generated dissolved water is discharged through the dissolved water discharge unit 155. As such, the present invention adopts a method of maximizing the collision of water and air (or swinging method) without disturbing the original flow of the mixture of water and air, thereby minimizing power consumption of the pump 120 and simultaneously generating microbubbles. You can do it.

Referring to FIGS. 1 and 5, the separation chamber 160 may collect undissolved air and place them in a predetermined region.

Separation chamber 160 according to an embodiment of the present invention is installed to connect the inside of the dissolved water discharge portion 155 and the dissolution tank 170 of the turning unit 150. In the present embodiment, the separation chamber 160 is made of a transparent glass material, but may be made of another material such as transparent or opaque plastic or metal material.

Referring to FIG. 5, the separation chamber 160 according to the exemplary embodiment of the present invention has a cylindrical shape having an empty center and is coupled to the pair of substrates 162. The substrate 162 includes an opening P1 through which the dissolved water is introduced and an opening P2 through which the dissolved water is discharged, and the openings P1 and P2 are in flow communication with the separation chamber 160, respectively. The substrate 162 and the separation chamber 160 are combined. Here, the opening P1 receiving the dissolved water is directly connected to the turning unit 150 so as to be in flow communication so as to receive the dissolved water, or in the middle, a fastening means such as a pipe or a screw (not shown). It may be in communication with the turning unit 150 by. Of course, such coupling methods are exemplary and can be implemented in other coupling methods.

Referring to FIG. 5, one of the pair of substrates 162 is directly coupled to the swing unit 150 or coupled to the swing unit 150 by any means (for example, pipe or fastening means). The other of the pair of substrates 162 may be directly coupled to the dissolution tank 170, or may be coupled to the dissolution tank 170 by any means (for example, piping or fastening means). .

Referring to FIG. 5, the central axis of the separation chamber 160 may be disposed in the same direction as the central axis of the dissolving water discharged through the dissolving water discharge part 155 of the turning unit 150. That is, the longitudinal central axis of the separation chamber 160 is arranged in series so as to be the same as the longitudinal central axis of the pivot body 151.

Matching the central axis of the separation chamber 160 and the turning unit 150 is to maintain the turning force generated in the turning unit 150 as much as possible, but this is a preferred exemplary structure and the present invention is not limited only to this structure. In other words, a configuration in which both central axes do not completely coincide with each other is possible. In addition, the separation chamber 160 does not necessarily have to be cylindrical, and may have other shapes.

Dissolved water f2 discharged from the dissolved water discharge unit 155 of the turning unit 150 flows into the separation chamber 160 to continue its turning, and is not dissolved in the separating chamber 160 by the turning. Air is separated by the turning of the dissolved water and gathers near the central axis of the separation chamber 160.

Referring to FIG. 5, the length L of the separation chamber 160 corresponds to the time at which the turning dissolved water stays, and thus, the separation chamber 160 is optimized to sufficiently collect the undissolved air into the central axis. It is preferred to be produced in length.

Dissolution tank 170 is a kind of reservoir for storing the dissolved water discharged from the separation chamber (160). In this case, in the separation chamber 160, air which is not dissolved in addition to the dissolved water is discharged together to the dissolution tank 170 to move to the upper portion of the dissolution tank 170 due to buoyancy. The vent 175 is provided at the top of the dissolution tank 170 to discharge the undissolved air to the outside.

6 is a view for explaining the separation chamber and the swing unit of FIG.

Referring to FIG. 6, an example in which the separation chamber 160 and the swing unit 150 are combined is illustrated. As shown in FIG. 6, the separation chamber 160 and the turning unit 150 are coupled, and the turning unit 150 carries the melted water flowing out of the venturi injector 140 in the tangential direction of the turning unit 150. Inflow. The separation chamber 160 and the swing unit 150 may be fastened using a fastening means such as a screw, and the separation chamber 160, the opening P1 of the substrate 162, and the melted water of the swing unit 150 may be fastened. The discharge part 155 is interconnected so that the melted water flows. That is, the dissolved water discharged from the dissolved water discharge unit 155 passes through the opening of the substrate 162 and flows into one end of the cylindrical separation chamber 160. Thereafter, the dissolved water introduced into the separation chamber 160 flows out to the other end of the separation chamber 160, and the dissolved water thus moved is moved to the dissolution tank side.

7 is a perspective view illustrating the nozzle unit of FIG. 1, FIG. 8 is a cutaway perspective view of the nozzle unit of FIG. 7, and FIG. 9 is a cross-sectional view of the nozzle unit of FIG. 7. Hereinafter, the nozzle unit will be described with reference to these drawings.

The nozzle unit 180 is located in the water, receives the dissolved water f4 flowing out of the dissolution tank 170, and then discharges it into the water at high speed to generate fine bubbles in the water by colliding the water with the dissolved water. Let's do it.

The nozzle unit 180 of the present invention can be applied to the configuration of a variety of nozzle unit that can introduce the melted water, discharge into the water to generate fine bubbles, the nozzle unit 180 according to the present embodiment is a dissolution tank ( And then dissolving the melted water introduced from 170, and then discharging it into water to generate fine bubbles. Therefore, since the dissolved water discharged from the nozzle unit 180 is discharged at a high speed while turning at high speed, the production rate of the fine bubbles is improved.

7 to 9, the nozzle unit 180 according to an embodiment of the present invention includes a nozzle body 181 and a melt water rotation guide unit 189 provided inside the nozzle body 181. can do.

The nozzle body 181 is a part which forms an appearance of the nozzle unit 180. It may be made of a metallic material, but need not necessarily be a plastic injection molding of transparent or translucent material and may be made of various other materials.

The nozzle body 181 may be provided with a nozzle inlet 183 for dissolving water and a nozzle outlet 185 for dissolving water.

In the nozzle unit 180 illustrated in FIGS. 7 to 9, an extended inclined surface 188 is formed in a section of the inner wall surface of the nozzle discharge unit 185 in which the cross-sectional area is gradually expanded along the water discharge direction. As such, the expansion inclined surface 188 is formed at the nozzle outlet 185, and thus the flow of dissolved water discharged on the basis of the Bernoulli method, which is a correlation between the cross-sectional area and the velocity of the fluid, can be induced more quickly. There is an effect that the fine bubble production rate is improved.

The nozzle unit 180 illustrated in FIGS. 7 to 9 has the same shape and internal structure as the swing unit 150 described above, except that the nozzle unit 180 includes an expansion slope surface 188. Therefore, the description of the internal structure of the nozzle unit 180, please refer to that of the turning unit 150.

As described above, the microbubble generating apparatus 100 using the solid solution seawater based on the turning unit of the present invention rotates water and air introduced through the turning unit 150 and collides with each other, thereby making the dissolved water of high solubility high. After the production, by dissolving the dissolved water in the water through the nozzle unit 180 to generate fine bubbles, it is possible to improve the production rate of the fine bubbles compared to the amount of water and air used.

The swing unit 150 has a water / air rotation guide unit 159 inside the swing body 151 to maximize the turning force of water and air, so that most of the supplied air is dissolved in water. Can generate numbers

In addition, since the separation chamber 160 is installed between the turning unit 150 and the dissolution tank 170 to separate and collect the undissolved air mixed in the dissolved water, and then discharge it to the dissolution tank 170, Air quickly exits the dissolution tank 170, and as a result, the high solubility of the dissolved water is quickly supplied to the nozzle unit 180, it is possible to increase the speed of producing fine bubbles.

On the other hand, in the microbubble generating device 100 using the solid solution seawater based on the turning unit of the present invention, the water / air inlet 153 of the turning unit 150 is formed in the tangential direction of the turning body 151, turning Since the main body 151 and the separation chamber 160 are disposed on the same axis, and the nozzle inlet 183 of the nozzle unit 180 is formed in the tangential direction of the nozzle body 181, there is no sudden change in the flow of the fluid. Due to the organic form, the overall pressure of the microbubble generating device 100 does not occur, thereby enabling the use of the pump 130 having a lower capacity than the conventional one, and when using the same pump 130 as the existing one. Therefore, the power consumption can be reduced.

In the above-described embodiments, the air and water are mixed to generate fine bubbles. However, the present invention may be able to generate fine bubbles by mixing water and gas such as oxygen or ozone as well as air. When ozone gas and water are mixed, ozone microbubbles can be produced. Therefore, the present invention can be utilized as a technique for generating fine bubbles by mixing any gas and water.

Alternatively, it will be possible to use other liquids instead of water. In this case, it can be used as a technique for mixing any liquid and air to generate fine bubbles.

Furthermore, the present invention can of course be utilized as a technique for generating a fine bubble by mixing any liquid and any gas.

110 ... valve 120 ... flow meter
130 ... supply pump 140 ... venturi injectors
150 ... swing unit 151 ... swing unit
Water / air induction guide 159 ... Separation chamber
170 ... Melting tank 175 ... Vent
180 ... Nozzle Unit 181 ... Nozzle Body
189. Molten water rotation guide

Claims (12)

A turning unit which receives a mixture of water and gas and turns out while colliding with water and gas to discharge dissolved water;
Melting tank for storing the dissolved water discharged from the swing unit; And
It includes; a nozzle unit for receiving fine water in the water received in the dissolved water stored in the dissolution tank;
The turning unit,
A cylindrical body having a cylindrical shape having a water / air inlet for receiving a mixture of water and gas and a melted water outlet for discharging dissolved water and having an empty inside; And a plurality of guide walls parallel to a longitudinal direction of the pivot body, the mixture of the water and the air introduced into the pivot body through the water / air inlet to generate the dissolved water. It comprises a; water / air rotation guide to turn to guide the dissolved water discharge portion,
Wherein the nozzle unit comprises:
A cylindrical nozzle body having a nozzle inlet for introducing dissolved water discharged from the dissolution tank and a nozzle discharge part for discharging fine bubbles and having an empty inside; And a plurality of guide walls parallel to a length direction of the nozzle body in the nozzle body, and turning the dissolved water introduced into the nozzle body through the nozzle inlet to generate fine bubbles in the dissolved water. Microbubble generating device using the solid-solution seawater based on the turning unit comprising a; rotative guide water guide portion to guide toward the nozzle discharge portion. delete The method of claim 1,
The water / air inlet is formed in the tangential direction of the cylindrical swing body, the dissolving water discharge portion is formed on one side wall on the central axis in the longitudinal direction of the cylindrical swing body base Microbubble generator using solid solution seawater. The method of claim 1,
And a plurality of guide walls of the revolving unit, wherein the plurality of guide walls are formed of a tubular tubular body. The method of claim 1, wherein
And a separation chamber connecting the turning unit and the dissolution tank to separate air which is not dissolved in the dissolution water.
The separation chamber is a microbubble generating device using the solid solution of the water based on the swing unit, characterized in that the center of the hollow cylindrical shape. 6. The method of claim 5,
The central axis of the cylindrical separation chamber of the microbubble generating device using the solid solution seawater based on the turning unit, characterized in that the same as the central axis of the discharging direction discharged from the turning unit. delete delete The method of claim 1,
The nozzle inlet is formed in the tangential direction of the cylindrical nozzle body, the nozzle outlet is formed on one side wall on the central axis in the longitudinal direction of the cylindrical nozzle body, the solid solution water of the turning unit Micro bubble generator using. The method of claim 9,
And a plurality of guide walls of the nozzle unit are formed of a tubular body having a pipe shape. 11. The method of claim 10,
One of the plurality of guide walls of the nozzle unit has one end fixed to an inner wall surface of the nozzle body in which the nozzle discharge portion is formed while surrounding the nozzle discharge region, and the other end is an inner wall surface of the other side of the nozzle body. Microbubble generating device using the solid solution seawater based on the turning unit, characterized in that the guide wall spaced apart from. The method of claim 1,
The dissolution tank is a fine bubble generator characterized in that it comprises a vent for discharging the air not dissolved in the dissolved water to the outside.

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