KR102603862B1 - Fine-bubble generator device - Google Patents

Abstract

A microbubble generator according to an embodiment of the present invention includes a rotating ejector that introduces liquid to rotate the liquid and introduces gas to generate bubbles in the liquid; a mix unit disposed downstream of the rotating ejector and mixing the bubbles and liquid by rotating the liquid in which bubbles are generated; and an acceleration unit disposed on the downstream side of the mix unit and increasing the flow speed of the liquid by gradually reducing the space of the flow path through which the liquid mixed with bubbles flows.

Description

Fine-bubble generator device}

The present invention relates to a microbubble generating device, and more specifically, to a microbubble generating device that generates nano-sized microbubbles in a liquid.

In general, nanobubbles are ultra-fine bubbles that cannot be seen with the eye. They are 1/2,000 the size of regular bubbles and are fine air particles in skin pores less than 25㎛. When they disappear, 1) 40KHz ultrasound is generated, 2) 140db It generates high negative pressure, and 3) generates instantaneous high heat of 4,000 to 6,000 degrees.

In other words, normal bubbles rise in water and burst at the surface, but nanobubbles shrink under pressure under water and disappear while generating various types of energy.

And nanobubbles like the above are ultra-fine bubbles that mainly occur when water and air are violently rotated.

Such nanobubbles are used in various fields due to their physical and chemical properties such as "gas dissolution effect, self-pressurization effect, and electrification effect", and in recent years, they have been used in various aquaculture and hydroponic cultivation, especially in the fishing and agricultural fields. In the medical field, it is used for precise diagnosis, and is currently being used in various fields such as physical therapy, high-purity water treatment, and environmental devices.

In other words, its field of use is wide ranging from hot spring bathing to cancer diagnosis, and it is known to regenerate the skin and also has an excellent sterilizing effect.

Nanobubbles as described above are generated in various ways, such as swirling liquid flow type, state mixer type, ajector type, venturi type, pressure dissolution type, ultrasonic type, electrolysis type, and micropore filter type.

In order to generate microbubbles through these various types of microbubble generators, a liquid (feed water) mixed with gas is supplied and the gas is converted into microbubbles to generate nanobubbles.

Related prior patent KR 10-2059038 B1 (2019.12.18).

The present invention seeks to provide a microbubble generating device that can generate nano-sized microbubbles more efficiently and finely.

The problem to be solved by the present invention is not limited to the above-mentioned problems, and problems not mentioned can be clearly understood by those skilled in the art from this specification and the attached drawings. .

A microbubble generator according to an embodiment of the present invention includes a rotating ejector that introduces liquid to rotate the liquid and introduces gas to generate bubbles in the liquid; a mix unit disposed downstream of the rotating ejector and mixing the bubbles and liquid by rotating the liquid in which bubbles are generated; and an acceleration unit disposed on the downstream side of the mix unit and increasing the flow speed of the liquid by gradually reducing the space of the flow path through which the liquid mixed with bubbles flows.

The microbubble generating device according to an embodiment of the present invention has the advantage of generating nano-sized microbubbles more efficiently and finely.

The effects of the present invention are not limited to the effects described above, and effects not mentioned can be clearly understood by those skilled in the art from this specification and the attached drawings.

1 is a schematic block diagram of a microbubble generator according to an embodiment of the present invention.
Figure 2 is a schematic cross-sectional view of a spray ejector of a microbubble generator according to an embodiment of the present invention.
Figure 3 is a partial perspective view of the spray ejector of the microbubble generator according to an embodiment of the present invention.
Figure 4 is a schematic cross-sectional view of a rotating ejector of a microbubble generator according to an embodiment of the present invention.
Figure 5 is a schematic perspective view of the mixing unit of the microbubble generator according to an embodiment of the present invention.
Figure 6 is a schematic perspective view and partial side view of the mix rotation part of the mix part of the microbubble generator according to an embodiment of the present invention.
Figure 7 is a schematic cross-sectional view of the mix portion of the microbubble generator according to an embodiment of the present invention.
Figure 8 is a schematic perspective view and plan view of the acceleration unit of the microbubble generator according to an embodiment of the present invention.
Figure 9 is a cross-sectional development view of the acceleration part of the microbubble generator according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, the spirit of the present invention is not limited to the presented embodiments, and those skilled in the art who understand the spirit of the present invention may add, change, or delete other components within the scope of the same spirit, or create other degenerative inventions or this invention. Other embodiments that are included within the scope of the invention can be easily proposed, but this will also be said to be included within the scope of the invention of the present application.

A microbubble generator according to an embodiment of the present invention includes a rotating ejector that introduces liquid to rotate the liquid and introduces gas to generate bubbles in the liquid; a mix unit disposed downstream of the rotating ejector and mixing the bubbles and liquid by rotating the liquid in which bubbles are generated; and an acceleration unit disposed on the downstream side of the mix unit and increasing the flow speed of the liquid by gradually reducing the space of the flow path through which the liquid mixed with bubbles flows.

In addition, the rotary ejector has an inlet hole for introducing gas, a rotating case part that forms an internal space that mixes liquid and gas to generate bubbles, and is disposed on the inlet side of the rotating case part and forms an inflow passage through which liquid flows. It may be provided with a rotating inlet portion and a rotating discharge portion disposed on the outlet side of the rotating case portion and forming a discharge passage through which liquid is discharged.

Additionally, the rotary inlet portion and the rotary discharge portion may each be attached to or detached from the rotary case portion.

In addition, the rotating inlet portion includes an inlet main body forming an inlet flow path and an inlet extension part that extends from the inlet main body and is attached to and detachable from the rotating case part, and the inlet main part has an inclined shape so that the space of the inlet flow path gradually becomes smaller. It may overlap the inlet hole in a radial direction to guide the gas flowing into the inlet hole.

In addition, the mix part forms an inlet hole through which liquid flows in and an outlet hole through which liquid flows out, a mix case part forming a predetermined rotation space, and a mix rotation part disposed on the rotation space and rotating the liquid on the rotation space. can be provided.

In addition, the mix rotation part includes a mix main body connected to the mix case part, a mix wing part that extends spirally outward from the mix main body to form a rotation flow path, and a mix wing part that extends at a predetermined angle from the mix wing part to form a rotation flow path. It may be provided with a mix protrusion that protrudes.

In addition, the acceleration unit includes a first acceleration space into which liquid flows, a second acceleration space that is smaller than the first acceleration space, a third acceleration space that is smaller than the second acceleration space, and a space that is smaller than the third acceleration space. A fourth acceleration space is formed, and liquid can sequentially flow into the first acceleration space, the second acceleration space, the third acceleration space, and the fourth acceleration space.

Components with the same function within the scope of the same idea shown in the drawings of each embodiment are described using the same reference numerals.

1 is a schematic block diagram of a microbubble generator according to an embodiment of the present invention.

Figure 2 is a schematic cross-sectional view of a spray ejector of a microbubble generator according to an embodiment of the present invention.

Figure 3 is a partial perspective view of the spray ejector of the microbubble generator according to an embodiment of the present invention.

Figure 4 is a schematic cross-sectional view of a rotating ejector of a microbubble generator according to an embodiment of the present invention.

Figure 5 is a schematic perspective view of the mixing unit of the microbubble generator according to an embodiment of the present invention.

Figure 6 is a schematic perspective view and partial side view of the mix rotation part of the mix part of the microbubble generator according to an embodiment of the present invention.

Figure 7 is a schematic cross-sectional view of the mix portion of the microbubble generator according to an embodiment of the present invention.

Figure 8 is a schematic perspective view and plan view of the acceleration part of the microbubble generator according to an embodiment of the present invention.

Figure 9 is a cross-sectional development view of the acceleration part of the microbubble generator according to an embodiment of the present invention.

In order to more clearly express the technical idea of the present invention, the attached drawings simplify or omit parts that are less relevant to the technical idea of the present invention or that can be easily derived from those skilled in the art.

Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case where it is "directly connected," but also the case where it is "electrically connected" with another element in between. . In addition, when a part is said to "include" a certain component, this does not mean excluding other components unless specifically stated to the contrary, but may further include other components, and one or more other features. It should be understood that it does not exclude in advance the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

In this specification, 'part' includes a unit realized by hardware, a unit realized by software, and a unit realized using both. Additionally, one unit may be realized using two or more pieces of hardware, and two or more units may be realized using one piece of hardware.

Hereinafter, with reference to FIGS. 1 to 9, the microbubble generator 10 according to an embodiment of the present invention will be described in detail.

For example, the microbubble generator 10 may refer to a device that generates microbubbles in a liquid by injecting gas into the liquid.

For example, the liquid may be water, but is not limited thereto.

For example, the gas may be hydrogen, ozone, nitrogen, carbon dioxide, or a combination thereof, but is not limited thereto.

For example, as shown in FIG. 1(a), the microbubble generator 10 has a spray ejector 100 or a rotation ejector 200 arranged in the order of the movement path of the liquid, and a pump (M) It may be a combined device in which the spray ejector 100 or the rotation ejector 200 is disposed, the mix unit 300 is disposed, and the acceleration unit 400 is disposed.

That is, the liquid passes through the spray ejector 100 or the rotary ejector 200, then passes the pump M, again passes the spray ejector 100 or the rotary ejector 200, and then passes through the mix unit 300, It may pass through the acceleration unit 400.

Meanwhile, as an example, as shown in FIG. 1(b), in another embodiment, the microbubble generator 10A has a spray ejector 100 or a rotation ejector 200 arranged in the order of the movement path of the liquid. , it may be a combined device in which a mix unit 300 is disposed and an acceleration unit 400 is disposed.

That is, the liquid may pass through the spray ejector 100 or the rotation ejector 200, then pass through the mix unit 300, and then pass through the acceleration unit 400.

In this case, in order to implement the flow of liquid, a pump (M) may be connected to the upstream side of the spray ejector 100 or the rotary ejector 200.

For example, the pump M may be a device that implements fluid flow using a rotating impeller.

Hereinafter, with reference to FIGS. 2 to 9, each component that constitutes the microbubble generators 10 and 10A will be described in more detail.

For example, as shown in FIGS. 2 and 3, the microbubble generators 10 and 10A include a spray ejector that introduces liquid to spray the liquid and introduces gas to generate bubbles on the sprayed liquid. 100) may be included.

For example, the spray ejector 100 may be a device that uses the Venturi principle and generates bubbles in the sprayed liquid by mixing gas in the sprayed liquid.

For example, the spray ejector 100 supplies liquid to the spray case portion 110 and the mixing space (S1), which forms an inlet hole (H1) for introducing gas and a mixing space (S1) for mixing liquid and gas. A spray unit 120 for spraying may be provided.

For example, the spray case portion 110 may have an overall cylindrical shape, may form the mixing space (S1) inside, and form the inlet hole (H1) through which gas flows in at a predetermined location on the outer surface. This can be done, and a discharge hole (H2) through which liquid is discharged can be formed at one end.

For example, the spray unit 120 may have an overall cylindrical shape, and is configured to introduce liquid into the mixing space (S1), transform (spray) the liquid into fine particles, and spray it into the mixing space (S1). You can.

As a result, the gas flowing into the inlet hole (H1) is mixed with the liquid sprayed on the mixing space (S1), so that the gas can be more evenly mixed in the liquid phase.

Here, as an example, the spray portion 120 includes a spray body portion 121 that forms a spray flow path through which liquid flows, and a spray guide that extends from the spray body portion 121 to the spray flow path and guides the flow of liquid. It may include a part 123, a spray fixture 124 extending from the spray guide portion 123, and a first spray generator 125 connected to the spray fixture 124 to spray liquid.

For example, the spray body portion 121 may be connected to the spray case portion 110 and may be configured to form the spray flow path through which liquid flows in from the outside and is discharged into the mixing space (S1).

Here, the spray flow path includes a first spray flow path (A1) through which liquid flows from the outside, a second spray flow path (A2) formed downstream of the first spray flow path (A1), and the second spray flow path (A2). It is formed downstream, and is formed downstream of the third spray flow path (A3) and the third spray flow path (A3) having a smaller diameter than the second spray flow path (A2), and has a diameter from the third spray flow path (A3). A large fourth spray flow path (A4) can be provided.

That is, the spray body portion 121 may form the first spray flow path (A1), the second spray flow path (A2), the third spray flow path (A3), and the fourth spray flow path (A4). .

Therefore, the liquid flowing into the first spray flow path (A1) passes through the second spray flow path (A2), increases in movement speed on the third spray flow path (A3), and reaches the fourth spray flow path (A4). , When it is instantaneously expanded (dispersed) in the fourth spray flow path (A4) and discharged from the fourth spray flow path (A4) into the mixing space (S1), the first spray generator 125 and as described below It may be sprayed into fine particles by the second spray generator 127.

Meanwhile, the spray guide portion 123 may have a rib shape (plate shape) extending from a portion of the spray body portion 121 in the direction of the spray flow path.

For example, the spray guide unit 123 can reduce the overload of the pump M by reducing turbulence in the liquid flowing on the spray flow path.

Here, as an example, the spray guide unit 123 may be formed on the third spray flow path (A3).

Accordingly, the occurrence of turbulence in the liquid accelerated on the third spray flow path A3 can be further reduced.

Here, as an example, the spray fixture 124 may be supported by the spray guide portion 123 and may be disposed at the center of the spray passage.

For example, the spray fixing part 124 may have an overall cylindrical shape, and may have a predetermined thread so that a fastening member T that fastens the first spray generating part 125 can be connected.

Here, the fastening member (T) may be a screw.

As the spray fixture 124 is also disposed on the spray passage, turbulence in the liquid flowing in the spray passage can be reduced.

Meanwhile, the first spray generator 125 is configured to spray the liquid discharged from the fourth spray passage A4 into the mixing space (S1) into small particles, and the spray is sprayed by the fastening member (T). It may be fixed to the fixing part 124.

For example, the first spray generator 125 may have an overall disk shape, and may form a plurality of peaks and valleys at the ends to spray liquid.

Meanwhile, the spray unit 120 extends from the spray body 121 to the mixing space (S1) and is disposed on the downstream side of the inlet hole (H1) to collect gas flowing into the inlet hole (H1). It may further include a first spray extension 122 that guides the flow to the first spray generator 125.

To explain this in more detail, the first spray extension 122 may be formed in a disk shape extending radially from the outer surface of the spray body 121, and may be formed in the inlet hole H1 through which gas flows. It may be disposed on the downstream side, but may be disposed further apart (d) than the inlet hole (H1) on the mixing space (S1) based on the first spray generator 125.

As a result, the gas flowing into the mixing space (S1) from the inlet hole (H1) may be guided toward the first spray generator 125 by the first spray extension 122.

Meanwhile, the spray unit 120 extends from the spray body 121 to the mixing space (S1) and creates a vortex in the gas flowing from the inlet hole (H1) to the first spray generator 125. It may further include a second spray extension 126 that generates spray.

To explain this in more detail, the second spray extension 126 may be formed in a disk shape extending radially from the outer surface of the spray body 121, and the spray body 121 and the spray case By reducing the space between the parts 110, the moving speed of the gas flowing from the inlet hole (H1) to the first spray generator 125 is increased, and at the same time, a vortex (dispersion) is generated on the mixing space (S1). The gas can be mixed more evenly with the sprayed liquid.

Meanwhile, the spray unit 120 extends from the second spray extension 126 and may further include a second spray generator 127 that sprays liquid opposite the first spray generator 125. You can.

To explain this in more detail, the second spray generator 127 is formed in a plurality of spaced apart from the second spray extension portion 126 and is formed at a position opposite to the first spray generator 125. Accordingly, the liquid discharged from the fourth spray flow path A4 to the mixing space (S1) may be sprayed into small particles by the first spray generator 125 and the second spray generator 127. .

Therefore, the liquid sprayed from the spray unit 120 and discharged into the mixing space (S1) can be evenly mixed with gas and is discharged to the outside through the discharge hole (H2) formed by the spray case unit (110). may be discharged.

The liquid discharged from the spray ejector 100 may reach the pump M and then reach the rotary ejector 200.

Hereinafter, the rotating ejector 200 will be described in more detail with reference to FIG. 4.

For example, the rotating ejector 200 may be a device that introduces liquid to rotate the liquid and introduces gas to generate bubbles in the liquid.

For example, the rotating ejector 200 may be disposed downstream of the pump M.

For example, the rotary ejector 200 includes an inlet hole (H1) for introducing gas, a rotary case portion (210) forming an internal space (S2) for generating bubbles by mixing liquid and gas, and the rotary case portion ( A rotating inlet portion 220 disposed on the inlet side of the rotary case 210 and forming an inflow passage through which liquid flows, and a rotating discharge portion disposed on the outlet side of the rotating case portion 210 and forming an discharge passage through which liquid is discharged ( 230) can be provided.

For example, the rotating case portion 210 may have an overall cylindrical shape, and may form the inlet hole H3 through which gas flows at a predetermined position on the outer surface, and the liquid and gas may be mixed to form bubbles in the liquid. It is possible to form an internal space (S2) that is generated.

For example, the rotating case part 210 may have a screw thread (B1) formed at one end so that the rotating inlet part 220 can be attached and detached, and a screw thread (B2) at the other end so that the rotating discharge part 230 can be attached and detached. can be formed.

Likewise, each of the rotary inlet portion 220 and the rotary discharge portion 230 may form a screw thread that is screwed to the screw thread of the rotary case portion 210.

Meanwhile, the rotary inlet portion 220 is provided with an inlet main body portion 222 forming an inlet flow path and an inlet extension portion 221 that extends from the inlet main body portion 222 and is detachable from the rotary case portion 210. can do.

For example, the inlet main body 222 may form the inlet flow path through which liquid moves from the outside to the internal space (S2), and is inclined so that the space of the inlet flow path gradually becomes smaller from the upstream side to the downstream side. It may have a cylindrical shape.

Additionally, a spiral-shaped protrusion (not shown), such as a screw thread, may be formed to protrude on the inner surface of the inlet main body 222 to implement rotation of the flowing liquid.

As a result, the liquid flowing in the inflow passage of the inlet main body 222 may be rotated and discharged into the internal space (S2).

Additionally, the inlet body portion 222 may be disposed to overlap the inlet hole H3 in a radial direction to guide gas flowing into the inlet hole H3.

Accordingly, the gas flowing into the internal space (S2) through the inlet hole (H3) is guided by hitting the inlet main body portion 222 and can be mixed with the liquid discharged from the inflow passage to the internal space (S2). there is.

Here, as an example, the end of the inlet main body 222 is formed (d) closer to the inlet hole (H3) with respect to the rotary discharge part 230 to prevent gas flowing into the inlet hole (H3). It can be efficiently guided to the internal space (S2).

Meanwhile, the inlet extension part 221 may form a screw thread that is screwed to the rotating case part 210.

Here, as an example, the rotating discharge unit 230 extends from the discharge main body 233 and the discharge main body 233 forming a discharge passage for discharging liquid from the internal space S2 to the outside, and the rotation It may be provided with a discharge extension part 231 that forms a screw thread that is screwed to the case part 210.

The liquid discharged from the rotating ejector 200 may reach the mix unit 300.

Hereinafter, the mix unit 300 will be described in more detail with reference to FIGS. 5 to 7.

For example, the mixing unit 300 may be a device that mixes bubbles and liquid by rotating the liquid in which bubbles have been generated.

For example, the mix unit 300 forms an inlet hole through which liquid flows in and an outlet hole through which liquid flows out, and a mix case unit 310 forming a predetermined rotation space S3 and the rotation space S3. It may be provided with a mix rotation unit 320 that is disposed on the top and rotates the liquid on the rotation space S3.

For example, the mix case portion 310 may have an overall cylindrical shape, and the rotation space S3 may become smaller from upstream to downstream.

For example, the mix rotation unit 320 may be disposed on the rotation space S3 to rotate the liquid flowing from the inlet hole to the discharge hole.

Here, as an example, the mix rotation unit 320 includes a mix main unit 321 connected to the mix case unit 310 and a mix wing that extends spirally outward from the mix main unit 321 to form a rotation flow path. A unit 322 may be provided.

For example, the mix body portion 321 may have an overall hollow cylindrical shape and may be fixed on the mix case portion 310.

The mix main body 321 may form an inlet hole and an outlet hole through which gas flows so that gas can be selectively injected.

For example, the mix wing portion 322 is a component that rotates the liquid flowing in the rotation space (S3), and may be formed to extend spirally from the outer surface of the mix main body portion 321.

For example, the mix wing portion 322 may be formed in a spiral shape at at least 420 degrees on the outer surface of the mix body portion 321, and the end is in contact with the inner surface of the mix case portion 310 to form a spiral shape. The rotation flow path can be formed.

Here, as an example, the mix rotation unit 320 may further include a mix protrusion 323 that extends from the mix wing unit 322 at a predetermined angle and protrudes onto the rotation passage.

To explain this in more detail, as shown in FIGS. 6(a) and 6(b), the mix protrusion 323 may be a plate shape extending from the outer surface of the mix wing 322 onto the rotation passage. And, the space of the rotation passage can be made smaller.

As a result, the liquid flowing on the rotation passage increases as it passes the mix protrusion 323, and the moment it passes the mix protrusion 323, the space in the rotation passage becomes larger again, making the bubbles in the liquid more fine. It can be shredded.

In addition, as the mix protrusion 323 extends at a predetermined angle from the mix wing 322, a vortex space S4 may be formed between the mix protrusion 323 and the mix wing 322. , Bubbles in the liquid phase may be more finely broken due to the generation of vortex in the vortex space (S4).

Liquid discharged from the mix unit 300 may reach the acceleration unit 400.

Hereinafter, the acceleration unit 400 will be described in more detail with reference to FIGS. 8 and 9.

For example, the acceleration unit 400 may be a device that increases the flow speed of the liquid by gradually reducing the flow path space through which the liquid mixed with bubbles flows.

For example, the acceleration unit 400 may have an overall cylindrical shape, but may also have a polygonal pillar shape.

For example, the acceleration unit 400 may include an acceleration case unit 400a that forms an acceleration space therein and a plurality of partition walls 400b that define the size of the acceleration space.

For example, the acceleration space includes a first acceleration space 410 into which liquid flows, a second acceleration space 420 that is smaller than the first acceleration space 410, and a space smaller than the second acceleration space 420. A third acceleration space 430 and a fourth acceleration space 440 that are smaller than the third acceleration space 430 may be provided.

That is, the acceleration unit 400 is connected to the first acceleration space 410, the second acceleration space 420, the third acceleration space 430, and the fourth acceleration space 440 through the partition wall 400b. ) can be formed.

Liquid may flow into the first acceleration space 410, sequentially pass through the second acceleration space 420, the third acceleration space 430, and the fourth acceleration space 440, and then be discharged to the outside. there is.

For example, the dotted lines in FIG. 8 conceptually represent the first acceleration space 410, the second acceleration space 420, the third acceleration space 430, and the fourth acceleration space 440, As shown in FIG. 8(b), the angle of the first acceleration space 410 is the largest with respect to a predetermined center point on the plane, so the size of the space is largest, and the size of the space is largest, and the size of the space is the largest. The size is the next largest, and the size of the fourth acceleration space 440 can be formed as the smallest.

FIG. 9 is a conceptually developed cross-sectional view to explain the flow path of the acceleration unit 400. As shown in FIG. 9, the sequential order of space size is the first acceleration space 410, the second acceleration space. The space 420 is followed by the third acceleration space 430 and the fourth acceleration space 440.

Here, a first communication space (E1) is formed between the first acceleration space 410 and the second acceleration space 420, and between the second acceleration space 420 and the third acceleration space 430. A second communication space E2 may be formed, and a third communication space E3 may be formed between the third acceleration space 430 and the fourth acceleration space 440.

Here, the sequential order of size of the spaces is the first communication space (E1), the third communication space (E3), and the third communication space (E3).
As can be seen in FIG. 9, the first communication space (E1) may be formed at one end of the acceleration unit 400, and the second communication space (E2) may be formed at the other end of the acceleration unit 400. The third communication space E3 may be formed at one end of the acceleration unit 400.
Additionally, as can be seen in FIG. 9, the first communication space (E1) may be formed to be relatively larger than the second communication space (E2), and the second communication space (E2) may be formed as the third communication space (E2). It can be formed relatively larger than E3).

Accordingly, the liquid flowing into the first acceleration space 410 flows sequentially on the second acceleration space 420, the third acceleration space 430, and the fourth acceleration space 440, and the moving speed gradually increases. It can be done faster, and as a result, the microbubbles in the liquid can be broken into smaller pieces.

In the above, the configuration and features of the present invention have been described based on the embodiments according to the present invention, but the present invention is not limited thereto, and various changes or modifications may be made within the spirit and scope of the present invention. It is obvious to those skilled in the art, and therefore, it is stated that such changes or modifications fall within the scope of the appended patent claims.

100: spray ejector
200: Rotating ejector
300: Mix department
400: acceleration unit

Claims (7)

In the microbubble generator,
a rotating ejector that introduces liquid to rotate the liquid and introduces gas to generate bubbles in the liquid;
a mix unit disposed downstream of the rotating ejector and mixing the bubbles and liquid by rotating the liquid in which bubbles are generated; and
An acceleration unit disposed on the downstream side of the mix unit and increasing the flow speed of the liquid by gradually reducing the space of the flow path through which the liquid mixed with bubbles flows,
The rotating ejector,
A rotating case unit that forms an inlet hole for introducing gas and an internal space that mixes liquid and gas to generate bubbles,
A rotating inlet portion disposed on the inlet side of the rotating case portion and forming an inlet flow path through which liquid flows, and
A rotating discharge portion is disposed on the outlet side of the rotating case portion and forms a discharge passage through which liquid is discharged,
The rotating inlet portion and the rotating discharge portion,
Each is attached and detached from the rotating case part,
The rotating inlet part,
an inlet main body forming an inlet flow path, and
An inlet extension part extends from the inlet main body and is detachable from the rotating case part,
The inlet main body,
It has an inclined shape so that the space in the inlet flow path gradually becomes smaller.
Overlapping with the inlet hole in a radial direction to guide the gas flowing into the inlet hole,
The inlet main body,
A spiral protrusion is formed on the inner circumferential surface to enable rotation of the liquid flowing on the inlet flow path.
Microbubble generating device.
delete delete delete In the microbubble generator,
a rotating ejector that introduces liquid to rotate the liquid and introduces gas to generate bubbles in the liquid;
a mix unit disposed downstream of the rotating ejector and mixing the bubbles and liquid by rotating the liquid in which bubbles are generated; and
An acceleration unit disposed on the downstream side of the mix unit and increasing the flow speed of the liquid by gradually reducing the space of the flow path through which the liquid mixed with bubbles flows,
The mix section,
A mix case part that forms an inlet hole through which liquid flows in and an outlet hole through which liquid flows out, and a predetermined rotation space, and
It is disposed on the rotation space and has a mix rotation part that rotates the liquid on the rotation space,
The mix rotation part,
A mix main unit connected to the mix case unit,
A mix wing portion that extends spirally outward from the mix main body portion to form a rotation flow path, and
It has a mix protrusion extending at a predetermined angle from the mix wing and protruding on the rotation flow path,
The mix protrusion is,
To reduce the space of the rotation passage,
Microbubble generating device.
delete In the microbubble generator,
a rotating ejector that introduces liquid to rotate the liquid and introduces gas to generate bubbles in the liquid;
a mix unit disposed downstream of the rotating ejector and mixing the bubbles and liquid by rotating the liquid in which bubbles are generated; and
An acceleration unit disposed on the downstream side of the mix unit and increasing the flow speed of the liquid by gradually reducing the space of the flow path through which the liquid mixed with bubbles flows,
The acceleration unit,
A first acceleration space where liquid flows,
A second acceleration space that is smaller than the first acceleration space,
A third acceleration space that is smaller than the second acceleration space, and
Forming a fourth acceleration space that is smaller than the third acceleration space,
The acceleration unit,
Forming a first communication space between the first acceleration space and the second acceleration space,
Forming a second communication space between the second acceleration space and the third acceleration space,
Forming a third communication space between the third acceleration space and the fourth acceleration space,
The first communication space and the third communication space are,
Formed at one end of the acceleration unit,
The second communication space is,
It is formed at the other end of the acceleration unit,
The first communication space is,
It is formed larger than the second communication space,
The second communication space is,
It is formed larger than the third communication space,
The liquid is
sequentially flowing into the first acceleration space, the second acceleration space, the third acceleration space, and the fourth acceleration space,
Microbubble generator

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