WO2020189880A1

WO2020189880A1 - Microbubble generating device

Info

Publication number: WO2020189880A1
Application number: PCT/KR2019/017252
Authority: WO
Inventors: 지효근; 정윤근; 지현숙; 조수현; 지영배; 지수진; 윤영숙
Original assignee: 주식회사 일성
Priority date: 2019-03-18
Filing date: 2019-12-27
Publication date: 2020-09-24

Abstract

Provided is a microbubble generating device. In a process in which mixed water, in which water and air are mixed, is transferred through a dissolution space sealed from the outside, the gas contained in the mixed water is dissolved to become microbubbles, in order to not only generate microbubbles, but also, in particular, improve use efficiency through structural simplification and a reduction in size. To this end, the microbubble generating device comprises: a dissolution tank (2) which has a supply port (21) for supplying mixed water having transfer pressure, a discharge port (22) for discharging the mixed water to the outside, and a dissolution space (A) sealed from the outside and generating a dissolution pressure of a gas with respect to water between the supply port (21) and the discharge port (22); and a spray means (3) which connects the supply port (21) and the dissolution space (A) and sprays the mixed water, supplied from the supply port (21), onto the inner surface of an upper portion of the dissolution space (A), thereby generating impact pressure.

Description

Fine bubble generator

The present invention relates to a microbubble generator configured to generate microbubbles, which are microbubbles having a diameter of microscopic units, by dissolving air contained in a mixed water of water and air through a dissolution space having a dissolution pressure.

In general, microbubbles are ultra-fine bubbles that cannot be seen by the eye, and are microscopic air particles having a size of 1/2,000 of a normal bubble and having pores of 25㎛ or less of the skin.

When these microbubbles disappear, they generate 40KHz ultrasonic waves, generate a high sound pressure of 140db, and generate instantaneous high heat of 4,000 degrees to 6,000 degrees.

In other words, general air bubbles rise in water and rupture at the surface, but microbubbles are reduced by pressure in the water, and they disappear while generating various energy.

Such microbubbles mainly occur when water and air are violently rotated with ultrafine bubbles.

In addition, microbubbles are used in various areas due to physical and chemical properties such as "gas dissolving effect, self-pressing effect, charging effect".

In recent years, it is used for various aquaculture and hydroponic cultivation in the fields of fishing and agriculture, and is used for precise diagnosis in the medical field, and in various fields, it is used for physical therapy, high-purity water treatment, and environmental devices.

In other words, the field of use is widely ranging from hot spring baths to cancer diagnosis, and it is known that it regenerates the skin and has excellent sterilization effects.

The microbubbles as described above are produced in a variety of ways, such as a rotating liquid retention type, a state mixer type, an ejector type, a Venturi type, a pressure melting type, an ultrasonic type, an electrolysis type, and a microporous filter type.

In order to generate microbubbles through such various types of bubble generating facilities or devices, a liquid (supplied water) mixed with gas is supplied and the gas is converted into microbubbles to generate microbubbles.

One of them is that the feed water containing air bubbles (a mixture of water and air) is separated and compressed while passing through a micro-pipe of a generating means equipped with a micro-pipe.

In Korea Patent Registration No. 10-1146040 (name: microbubble generator), as known in the publication, a bubble generation chamber having a water inlet through which water is introduced, an air inlet through which air is introduced, and a discharge port through which air is discharged, A rotating disk provided between the water inlet and the air inlet and the discharge port of the bubble generating chamber, inserted into the shaft of the motor and rotated, and provided with a plurality of guiding holes through which water introduced through the water inlet and the air inlet is guided, and the rotating disk It is provided so as to be in close contact with the moving direction of water and air, and diverges the water and air guided through the guide hole to the outside, and at the same time, a plurality of protrusions in the direction of the rotating disk are formed to stir water and air according to the rotation of the It consists of a fixed disk equipped with stirring pieces.

Accordingly, water and air are stirred while being rubbed against the agitating pieces, as well as friction while passing through the jig jack between the agitating pieces, so that water and air are strongly agitated and compressed at the same time as if crushed.

This impact-type microbubble generator requires not only a high pressure of 5 to 20 bar, but also has a large flow loss, and requires a large number of nozzles and a bulky mixing tank, thereby complicating the structure and equipment of the device. have.

On the other hand, the microbubble generator of the orbiting liquid retention method generates microbubbles through the transfer pressure introduced in the process of transferring the mixed water mixed with water and air through the space in a vortex, like the impact nozzle method. It was supposed to be done.

That is, by forming a vortex type pipe, microbubbles are generated by the vortex pressure generated while the mixed water is transferred while forming a vortex.

However, the apparatus for generating micro-bubbles of the orbiting liquid holding method as described above has a problem that it cannot generate micro-bubbles through a single nozzle, and requires a high pressure as well as a bulky mixing tank.

The present invention was conceived to solve the conventional problems as described above, and an object of the present invention is to dissolve the gas contained in the process of transporting the mixed water of water and air through a dissolving space sealed to the outside. It is intended to provide a microbubble generating device capable of improving use efficiency through structural simplification and miniaturization, as well as generating microbubbles by becoming microbubbles.

The microbubble generator according to the present invention has a supply port for supplying mixed water having a conveying pressure and a discharge port for discharging to the outside, and is sealed against the outside between the supply port and the discharge port to form a gas dissolution pressure for water. A dissolution tank having a dissolving space; And an injection means configured to connect the supply port and the dissolution space and to inject the mixed water supplied from the supply port to the upper inner surface of the dissolution space to form a collision pressure.

In the microbubble generator according to the present invention, in the process of transporting the mixed water of water and air while passing through the dissolving space sealed to the outside, the gas contained is dissolved by the territorial sea pressure to form microbubbles, as well as the spraying. Through the means, the mixed water is applied with a collision pressure to promote microbubbles, thereby maximizing the efficiency of microbubble generation.

1 and 2 are schematic diagrams showing a microbubble generating device according to an embodiment of the present invention.

3 and 4 are schematic exemplified views showing an example of injection means constituting the microbubble generating device according to the present embodiment.

5 to 7 are schematic illustrations showing another example of the injection means constituting the microbubble generating device according to the present embodiment.

8 and 9 are schematic exemplified views showing still another example of the injection means constituting the microbubble generating device according to the present embodiment.

10 to 12 are schematic exemplified views showing another example of injection means constituting the microbubble generating device according to the present embodiment.

13 to 15 are schematic exemplified diagrams showing another example of a melting tank constituting the microbubble generating device according to the present embodiment.

[Description of drawing numbers]

1: fine bubble generating device 11: supply pipe

12: discharge pipe 2: melting tank

21: supply port 22: discharge port

23: melting body 24: melting vessel

25: binding nut 3: injection means

31: extension pipe 32: injection pipe

321: interior 322: exterior

33: injection nozzle 34: derivative

35: inlet hole 4: binding body

41: diffusion groove 42: diffusion body

5: control means 51; Power supply

6: pump 7: branch means

71: branching plate 72: guide plate

IO: discharge inlet DH: location of discharge inlet (IO)

CH: top position of inflow hole

In the microbubble generator according to the present invention, the outlet of the supply port is disposed on the upper surface while the inlet of the supply port through which the mixed water having the conveying pressure is supplied is disposed on the outer surface, and the supply pipe through which the mixed water is supplied is connected to the upper surface. The outlet of the discharge port is arranged on the outer surface while the outlet of the discharge port through which the microbubbles are discharged is arranged on the upper surface to connect the discharge pipe through which the mixed water is discharged. A dissolution tank having a dissolving space in which the opened lower part is assembled while being bound to the upper part of the dissolving body and has a dissolving space configured to form dissolution pressure for the mixed water supplied through the outlet of the supply port; And a spraying means having an injection pipe provided with an injection end portion that is spatially connected to the supply port and sprays the mixed water supplied to the upper inner surface of the melting space to form a collision pressure.

Hereinafter, with reference to the accompanying drawings, a detailed description of a microbubble generating device according to a preferred embodiment of the present invention is as follows.

The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shape of the element in the drawings may be exaggerated to emphasize a clearer description. It should be noted that in each drawing, the same member may be indicated by the same reference numeral. Detailed descriptions of known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention will be omitted.

The microbubble generator 1 according to an embodiment of the present invention has a supply port 21 for supplying mixed water having a conveying pressure and a discharge port 22 for discharging to the outside, as shown in FIG. , It has a dissolution tank (2) provided with a dissolution space (A) between the supply port 21 and the discharge port 22 is sealed to the outside to form a dissolution pressure of the gas to water.

That is, in the process of moving the mixed water through the dissolution space (A) through the transfer pressure, the gas contained in the mixed water is dissolved and refined through the dissolution pressure formed in the dissolution space (A), thereby generating microbubbles. It is discharged through the discharge port 22 and supplied to the place of use.

A supply pipe 11 through which the mixed water is supplied is connected to the supply port 21 of the dissolution tank 2; The discharge port 22 is connected to a discharge pipe 12 spatially connected to an external use place; The mixed water supplied through the supply pipe 11 is finely bubbled through the melting space A of the dissolution tank 2, and then is discharged through the discharge pipe 12 and supplied to the use place.

The microbubble generating device 1 according to an embodiment of the present invention made as described above sprays the mixed water supplied to the upper inner surface of the melting space A by being spatially connected to the supply port 21 It further has an injection means (3) adapted to form a collision pressure.

That is, the mixed water supplied to the melting space (A) through the injection means (3) is given a collision pressure to promote microbubbles, thereby maximizing the efficiency of generating microbubbles.

The dissolution tank 2, as shown in Figs. 1 and 2, is sealed inside and may have a'box' shape; The injection means 3 is integrally extended from the upper end of the supply pipe 11 connected to the supply port 21 of the dissolution tank 2 and may be formed of an extension pipe 31.

That is, the injection means 3 may be formed by binding the supply pipe 11 so that the end of the extension part 31 is located at a position close to the upper inner ceiling surface of the melting tank 2.

In the ceiling of the dissolution tank 2, at a position where the mixed water sprayed from the spraying means 3 collides, as shown in FIG. 2, a plurality of diffusion grooves are spread outward while the mixed water collides with the bottom surface. The binding body 4 provided with the diffuser 42 in which the 41 are formed may be bound.

That is, through the binding body 4, the diffusion body 42 is disposed in the dissolution space A of the dissolution tank 2, and the collision pressure and the impact pressure while supplying the mixed water to the dissolution space A By effectively applying the shear pressure, the efficiency of generating fine bubbles is improved.

The binding body 4 and the diffusion body 42 may be screwed together to be bound; In this case, by adjusting the threading depth of the diffusion body 42 and the binding body 4, the distance between the ceiling surface of the melting tank 2 and the diffusion surface 41 is adjusted, and the diffusion By more precisely adjusting the distance between the surface 41 and the end of the spraying means 3, the quality of use is improved.

The mixed water is supplied through the control of the control means 5 to control the power of the power supply unit 51 to generate a pump pressure to pump the dissolving space (A) by a pump (6). It can have a conveying pressure that is conveyed via the way.

The injection means 3, as shown in FIG. 3, is bound to the supply port 21 of the dissolution tank 2, is spatially connected to the supply pipe 11, and has a length to the top. )'may be formed of an injection pipe 32 formed in the shape.

That is, the mixed water supplied to the supply port 21 is supplied while being sprayed to the ceiling surface of the melting tank 2 through the injection pipe 32.

At the upper end of the injection pipe 32, an injection nozzle 33 having a shape of a'fallopian tube' whose inner diameter gradually decreases toward the upper end may be provided.

That is, the mixed water supplied to the melting space A through the supply port 21 is injected through the injection nozzle 33 via the injection pipe 32.

At this time, after the mixed water is compressed to a high pressure by the spray nozzle 33, it is sprayed while being diffused from the outside, and the impact pressure on the ceiling surface of the dissolution tank 2 increases and diffuses to maximize the efficiency of generating fine bubbles.

In the interior of the injection pipe 32, as shown in FIG. 4, while the mixed water supplied through the supply port 21 is moving toward the injection nozzle 33, the collision pressure is applied. Of course, the derivative 34 may be provided to be guided in a eddy current.

That is, through the inductor 34, the mixed water is guided to a vortex while moving the interior of the injection pipe 32, and the shear pressure formed by the collision and the collision pressure formed by the collision are effectively provided, thereby improving the efficiency of generating fine bubbles. do

The derivative 34 may be formed of a “coil spring”.

In the interior of the spray nozzle 33, as shown in FIGS. 5 to 7, a branching means 7 configured to branch and move the mixed water may be provided.

That is, in the process of moving the mixed water while passing through the spray nozzle 33, it is moved while branching into a plurality of movement paths through the branching means 7 to facilitate microbubble formation.

The branching means (7) includes: a branching plate (71) configured to divide and divide in parallel with respect to the moving direction of the mixed water; And a pair of guide plates 72 formed integrally extending from both ends of the branching plate 71 in a direction in which the mixed water is moved in an outward direction to induce the mixed water.

The guide plates 72 are formed at both ends of the branching plate 71 disposed at the center of the injection nozzle 33, and the direction toward the discharge side of the injection nozzle 33 from the supply port 21 By forming an inclined surface, the mixed water can be guided in a vortex shape.

That is, the mixed water is moved in a vortex through the inclined surface of the guide plate 72 to maximize the efficiency of generating fine bubbles.

The dissolution tank 2, as shown in Figure 8, in a state in which the inlet of the supply port 21 is disposed on the outer surface, the outlet of the supply port 21 is disposed on the upper surface, and the mixed water is A dissolving body 23 which discharges the mixed water from the outside by discharging the discharge port 22 in a state in which the inlet of the discharge port 22 is disposed on the upper surface and the outlet of the discharge port 22 is disposed on the outer surface; The dissolution space (A) is assembled while the lower is opened and the lower opened is bound to the upper part of the dissolving body (23) and forms a dissolution pressure for the mixed water supplied through the outlet of the supply port (21). ) Having a melting vessel 24; may be made, including.

That is, the mixed water supplied through the supply port 21 is supplied to the melting space A while colliding with the upper inner peripheral surface of the melting vessel 24 through the spraying means 3.

The mixed water supplied to the dissolution space (A) dissolves and refines the gas contained in the mixed water through the dissolution pressure formed in the dissolution space (A) while being moved to the discharge port 22. After generating, it is discharged to the outside through the discharge port 22 and supplied to the place of use.

In the injection pipe 32, between the portion where the injection nozzle 33 is located and the portion where the supply port 21 is bound, the inside and outside are spatially connected as shown in FIGS. An inlet hole 35 through which the mixed water supplied to the melting space A is introduced into the injection pipe 33 may be provided.

That is, while high-pressure spraying of the mixed water into the melting space (A) through the injection pipe (32), the mixed water supplied to the melting space (A) through the inlet hole (35), the injection pipe ( As it flows into 32), it is re-injected into the melting space (A).

Accordingly, convection of the mixed water is naturally formed inside the melting space (A), thereby maximizing the efficiency of generating nanobubbles.

As shown in FIG. 9, the injection pipe 32 has an inner pipe 321 having a shape of a'pipe' in which the lower end is bound to the supply port 21 to receive the mixed water and eject it to the other end. )and; The inner diameter is larger than the outer diameter of the inner tube 331, so that the inlet hole 35 is formed between the inner tube 331, and the end of the inner tube 321 is accommodated and connected to the inside of the lower end. )'shape made of an exterior 322; may be formed, including.

That is, according to the difference between the ejection pressure of the mixed water ejected into the inside of the exterior 322 through the inner tube 321 and the fluid pressure in the dissolution space A formed outside the injection tube 32 , As the mixed water accommodated in the melting space (A) is introduced into the interior of the exterior 322 through the inlet hole (35), it is re-sprayed into the melting space (A).

As shown in Figs. 10 to 12, the melting vessel 24 is made of a'transparent material' that can be recognized by visually projecting the inside from the outside, and the process of microbubbles of the mixed water is recognized from the outside. It can be done.

The injection means 3, as shown in Figs. 10 to 12, is bound to the outlet of the supply port 21 and the mixed water supplied to the supply port 21 has a vertical direction and is circulated. The injection pipe 32 and the inlet hole 35 may be integrally formed.

In other words, through the injection pipe 32 and the inlet hole 35, the mixed water is circulated in the vertical direction in the melting space A, and a continuous dissolution pressure is applied to form fine bubbles more efficiently.

The injection pipe 32 is formed in a shape of a'pipe' having a vertical length, and has a screw end portion screwed to a binding nut 25 coupled with the supply port 21 at a lower end, and an upper end Has a terminal portion through which the mixed water is ejected, and the inside and outside are spatially connected between the screw end portion and the terminal portion, and the mixed water accommodated in the melting space (A) is transferred to the inside according to the injection pressure at which the mixed water is discharged to the terminal portion. The inlet hole 35 is integrally formed to flow in and eject to the end portion.

That is, while the mixed water is ejected into the dissolution space (A) through the injection pipe (32), the mixed water accommodated in the dissolution space (A) through the inlet hole (35) is the dissolution space (A). ) To form a circulation path that is re-erupted.

Accordingly, convection of the mixed water is naturally formed in the inside of the melting space (A), so that the efficiency of generating fine bubbles is maximized.

The location (DH) of the discharge inlet (IO) through which the mixed water of the melting space (A) is introduced from the discharge port 22 is, as shown in FIGS. 13 to 15, the minute in the melting space (A). The mixed water may be disposed at a position higher than the position CH of the inlet hole 35 to be recovered and supplied so as to recirculate the mixed water in the upward direction through the pipe 33.

That is, the inlet hole 35 for recovering and supplying the discharge inlet IO of the discharge port 21 through which the mixed water is discharged from the melting space A to recirculate the mixed water in the melting space A. As it is disposed at a position (DH) higher than the position (CH) of ), the mixed water is continuously circulated in the dissolution space (A) even if the continuous supply of the mixed water through the supply port 21 is not made. .

Accordingly, microbubbles are stably formed to maximize microbubble quality.

The operation and effect of the microbubble generating device 1 according to the present embodiment made as described above will be described in detail as follows.

The microbubble generator 1 according to this embodiment drives the pump 6 by selectively controlling the power of the power supply unit 4 through the control means 5, whereby water and air are mixed. After forming the mixed water, it is supplied to the dissolution space (A) through the moving pressure of the water.

At this time, while the mixed water passes through the dissolution space (A), the gas is dissolved by the dissolution pressure formed in the dissolution space (A) to become microbubbles, thereby forming microbubbles and then supplied to the use place.

One embodiment of the present invention described above is merely exemplary, and those of ordinary skill in the art to which the present invention pertains will appreciate that various modifications and other equivalent embodiments are possible. . Therefore, it will be appreciated that the present invention is not limited to the form mentioned in the detailed description above. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims. In addition, the present invention is to be understood as including the spirit of the present invention as defined by the appended claims and all modifications, equivalents and substitutes within the scope thereof.

16 is a schematic exemplified diagram showing an electrical control relationship of the microbubble generator according to the present embodiment.

Claims

It has a supply port 21 for supplying mixed water having a conveying pressure and a discharge port 22 for discharging to the outside, and is sealed against the outside between the supply port 21 and the discharge port 22 to dissolve gas in water A dissolution tank (2) having a dissolution space (A) configured to form pressure;

An injection means that connects the supply port 21 and the melting space (A) and sprays the mixed water supplied from the supply port 21 to the upper inner surface of the melting space (A) to form a collision pressure ( 3); A microbubble generating device comprising:
The method of claim 1;

A supply pipe 11 through which the mixed water is supplied is connected to the supply port 21 of the dissolution tank 2;

The injection means (3),

The microbubble generating device, characterized in that it is formed integrally extending from the upper end of the supply pipe (11) connected to the supply port (21) of the melting tank (2) and consisting of an extension pipe (31).
The method of claim 1;

On the ceiling of the dissolution tank 2, at a position where the mixed water sprayed from the spraying means 3 collides,

A fine bubble generating device, characterized in that a binding body (4) provided with a diffusion body (42) in which a plurality of diffusion grooves (41) are formed so as to diffuse outward while the mixed water collides with the bottom surface is bound.
The method of claim 1;

The injection means (3),

Characterized in that it is bound to the supply port 21 of the dissolution tank 2, is spatially connected to the supply pipe 11, and consists of an injection pipe 32 formed in a'pipe' shape having a length upward Micro bubble generator.
The method of claim 4;

At the upper end of the injection pipe 32,

A fine bubble generating device, characterized in that the injection nozzle 33 having a shape of a'fallopian tube' whose inner diameter gradually decreases as it goes toward the upper end.
The method of claim 4;

Inside the injection pipe 32,

A fine bubble generating device, characterized in that, while the mixed water supplied through the supply port (21) is being moved, a derivative (34) is provided to induce a vortex as well as to apply a collision pressure.
The method of claim 5;

Inside the spray nozzle 33,

A branching means 7 configured to branch and move the mixed water;

The injection means (7),

A branching plate 71 configured to be divided in parallel with respect to the moving direction of the mixed water; Including a pair of guide plates 72 formed integrally extending from both ends of the branching plate 71 in a direction in which the mixed water is moved in an outward direction to induce the mixed water. Micro bubble generating device characterized by.
The method of claim 4;

Between the portion where the mixed water is ejected from the injection pipe 32 and the portion to which the supply port 21 is bound,

The microbubble generator, characterized in that an inlet hole (35) is provided in which the inside and outside are spatially connected so that the mixed water supplied to the melting space (A) is introduced into the interior of the injection pipe (33).
The method of claim 8;

The injection pipe 32,

An inner tube 321 having a'pipe' shape having a lower end bound to the supply port 21 to receive the mixed water and eject it to the other end; The inner diameter is larger than the outer diameter of the inner tube 331, so that the inlet hole 35 is formed between the inner tube 331, and the end of the inner tube 321 is accommodated and connected to the inside of the lower end. )'appearance (322) made of a shape; a fine bubble generator comprising a.
The method of claim 8;

That the injection pipe 32 and the inlet hole 35 are integrally molded to have a vertical direction and circulate the mixed water supplied to the supply port 21 and circulate at the outlet of the supply port 21 Micro bubble generating device characterized by.
The method of claim 8;

The location (DH) of the discharge inlet (IO) through which the mixed water of the melting space (A) flows from the discharge port 22 is

It characterized in that it is disposed at a position higher than the position (CH) of the inlet hole 35 to recover and supply the mixed water through the injection pipe 33 in the melting space (A) to recirculate upwardly. Micro bubble generator.