KR20200074579A - Nano-bubble generator - Google Patents

Abstract

The present invention provides a nanobubble generator to maximize generation efficiency of nanobubbles. According to the present invention, the nanobubble generator, in order to generate nanobubbles when mixed water composed of water and air is transferred, comprises: a tubular main body having an inlet supplying the mixed water and an outlet discharging the mixed water, on both ends thereof; and a generation means disposed between the inlet and the outlet in the main body, having a transfer space through which the mixed water is transferred, and applying the collision pressure and the shear pressure to the mixed water to generate the microbubbles. The generation means comprises: a tubular nozzle body having an inlet supplying the mixed water and an outlet discharging the mixed water, on both ends thereof; a planar base plate coupled to the outer circumferential surface of the nozzle pipe where the outlet is formed and having an outer diameter and a shape which allow an outer circumferential surface to mate and make contact with the inner circumferential surface of the transfer space through which the mixed water is transferred; a planar collision plate disposed at an interval from the outlet of the nozzle pipe in a moving direction of the mixed water in the transfer space and having an outer diameter and a shape which allow the mixed water to pass through an interval with respect to the inner circumferential surface of the transfer space in which the mixed water is transferred, wherein the interval is formed as the outer diameter is smaller than that of the base plate; and a coupling means connecting and coupling the collision plate and the base plate.

Description

Nano-bubble generator

The present invention relates to a nanobubble generating device that generates nanobubbles, which are microbubbles having nanometers in diameter. More specifically, collision pressure and shear pressure are efficient in a process in which a mixed water mixture of water and air is moved. It relates to a nanobubble generator that can be applied to a small nanobubble facility or device through structural simplification and miniaturization, as well as improving the efficiency of generating nanobubbles.

In general, nanobubbles are ultra-fine air bubbles that cannot be seen by the eyes, and are 1/2,000 of the size of ordinary bubbles, and are fine air particles with pores of 25 μm or less in the skin. When extinguished, 1) generate 40KHz ultrasound, 2) 140db Generates high sound pressure, and 3) instantaneous high heat is generated between 4,000 degrees and 6,000 degrees.

That is, the normal bubbles rise in the water and rupture on the surface, but the nanobubbles shrink under pressure in water and generate various energy and disappear.

These nanobubbles occur mainly when water and air are rotated violently with ultra-fine bubbles.

Such nanobubbles are used in various fields by physical and chemical properties such as "gas dissolving effect, self-pressurizing effect, charging effect", etc., and in recent years, they are used in various aquaculture and hydroponic cultivation in the field of fishing and agriculture, It is used for precise diagnosis in the medical field, and is used in various fields such as physical therapy, high-purity water purification, and environmental devices.

In other words, the field of use is wide from hot spring baths to cancer diagnosis, and it is known that it regenerates the skin and has excellent sterilizing effect.

The nano-bubbles as described above are generated in various ways, such as a swirling liquid-retention type, a state mixer type, an ejector type, a bantric type, a pressure dissolving type, an ultrasonic type, an electrolysis type, and a microporous filter type.

In order to generate nanobubbles through various types of nanobubble generating facilities or devices, a liquid in which gas is mixed (supply water) is supplied to convert the gas into microbubbles to generate nanobubbles.

In the above, the process of converting the supply water into micro-bubbles is performed through the process of separating and compressing the supply water (mixed with water and air) containing air bubbles while passing through the micro-pipe of the generating means with micro-pipes.

As described above, as one of the nanobubble generators that generate nanobubbles, there is Korean Patent Registration No. 10-1146040 (name: nanobubble generator), the nanobubble generator, as described in the publication, It is provided between a water inlet and an air inlet through which air flows in and an air inlet and outlet through which water is discharged, and a water inlet and an air inlet and an outlet in the bubble generator, and is fitted between a motor shaft and rotated and rotated. And a rotating disk provided with a plurality of guide holes through which the water introduced through the air inlet is provided, and is provided to be in close contact with the moving direction of water and air of the rotating disk and branching the water and air induced through the guide hole outward It consists of a fixed disk with a plurality of stirring pieces protruding in the direction of the rotating disk to stir water and air according to the rotation of the rotating disk at the same time.

Accordingly, water and air are rubbed while rubbing with the jigging jacks, as well as being agitated while rubbing with the stirring pieces, so that water and air are strongly stirred and compressed at the same time as being crushed.

The micro-bubble generator of such an impact method not only requires a high pressure of 5 to 20 bar, but also has a disadvantage in that the structure and equipment of the device are complicated by a large flow rate loss, a large number of nozzles, and a large mixing tank. .

On the other hand, the micro-bubble generating device of the swirling liquid flow method, like the impact nozzle method, generates nanobubbles through the transfer pressure introduced in the process of transferring the mixed water and air mixed through the space in a vortex shape. As it is intended to be formed, a nano-bubble is generated by a vortex pressure generated while the mixed water is being transferred while forming a vortex line to form a vortex.

However, such a swirling liquid-flow type micro-bubble generating device, through a single nozzle, does not generate micro-bubbles and requires a high pressure as well as a bulky mixing tank.

1. Korean Patent Registration No. 10-1146040

The present invention improves the efficiency of generation of nanobubbles by efficiently imparting collision pressure and shear pressure in the process of mixing water and air mixed water, as well as a small nanobubble facility through structural simplification and miniaturization, or It is to provide a nanobubble generating device that can be applied to a device to realize economic benefits.

The nano-bubble generating device of the present invention for achieving the object of the present invention as described above, the body of the'pipe (管:)' shape having an inlet and an outlet through which a mixture of water and air flows from the outside at both ends Wow; It is provided between the inlet and the outlet in the body and has a transport space to which the mixed water is transferred. Generation means adapted to generate a nanobubble by applying a collision pressure and a shear pressure to the mixed water. In; The generating means includes a nozzle pipe having a “pipe” shape provided with an inlet through which the mixed water is introduced and an outlet through which the mixed water is introduced; A base plate having a'plate' shape having an outer diameter and shape in contact with the inner circumferential surface of the transport space through which the mixed water is transferred while being bound to the outer circumferential surface where the inlet is disposed in the nozzle tube; The interval between the inner circumferential surface of the conveying space in which the mixed water is conveyed, having an outer diameter smaller than the outer diameter of the base plate and arranged with a gap between the discharge port of the nozzle tube in the moving direction of the mixed water in the conveying space A collision plate having a'plate' shape having an outer diameter and a shape through which the mixed water passes; It characterized in that it comprises a; binding member for coupling while connecting the collision plate and the base plate.

The spacer is arranged to be spaced apart from each other with a distance between the plurality of generating means in the conveying direction of the mixed water on the conveying space of the body. The separating means is characterized in that it consists of a protrusion that protrudes while extending from the collision plate toward the conveying direction of the mixed water.

The inner circumferential surface forming a space connecting the inlet and the discharge port in the nozzle tube includes an inclined surface whose inner diameter gradually narrows toward the discharge port side, and the mixed water moves to the discharge port while forming a vortex; The discharge port is characterized in that the inner diameter is gradually increased toward the end from the nozzle tube at the point connected to the inclined surface to be discharged while the mixed water is diffused to the outside.

The nano-bubble generating apparatus according to the present invention made as described above moves through the nozzle tube and moves through vortex and diffusion and collides with the base plate and the collision plate while the mixed water mixed with water and air is moved in the transport space of the body. Through the pressure and shear pressure, nanobubble is promoted to have the effect of maximizing nanobubble generation efficiency.

In addition to this, economical benefits are realized through structural simplification and improvement in productivity due to miniaturization, and since the space is small, it can be applied to a small-sized nanobubble facility or device, thereby improving the efficiency of use.

In addition, by selectively adjusting and arranging the generating means to be disposed on the transport space of the body as necessary, design changes in various forms are advantageously made, thereby improving the use efficiency.

1 is a schematic cross-sectional illustration showing a nanobubble generator according to an embodiment of the present invention.
Figure 2 is a schematic cross-sectional illustration of a part excerpt showing the state of use of the nano-bubble generator according to the present embodiment.
3 to 8 is a schematic illustration showing the generating means constituting the nano-bubble generating apparatus according to the present embodiment,

Hereinafter, a nanobubble generating apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited to the embodiments described in detail below. This embodiment is provided to more fully describe the present invention to those skilled in the art. Therefore, the shape of the elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that in each drawing, the same members may be indicated by the same reference numerals. Detailed descriptions of well-known functions and configurations that are judged to unnecessarily obscure the subject matter of the present invention are omitted.

1 to 8 are views showing a nanobubble generator 1 according to an embodiment according to the present invention, and the nanobubble generator 1 according to this embodiment is a mixture of water and air from the outside It is to generate and discharge nanobubbles by minimizing the mixed air by applying collision pressure and shear pressure during the transfer of the incoming air.

The nanobubble generator 1 according to this embodiment has a'pipe' having an inlet 21 and an outlet 22 for receiving mixed water and air from the outside at both ends. 'It has a body (2) of the shape.

That is, the mixed water is transferred through the interior of the body (2).

In the above, the body 2 is made of a hollow'tube' at both ends, and is preferably formed of a'cylindrical tube' having a cross-section of a'circle' shape, and socket pipes coupled to other connectors at both ends, respectively. It is most preferable to be combined to receive mixed water from other connecting pipes to be delivered to other devices.

On the other hand, it is preferable that the flange pieces are respectively provided at both ends of the socket pipes and the body 2, and are fastened through bolting of the flange pieces.

The nanobubble generator 1 according to the present embodiment made as described above is provided between the inlet 21 and the outlet 22 in the body 2 and has a transport space A through which the mixed water is transferred. It has a generating means (3) for generating a nanobubble by applying a collision pressure and a shear pressure to the mixed water.

That is, while the mixed water moves through the transfer space (A) of the body (2), the collision is repeated while passing through the generating means (3), and at the same time, the shear pressure is applied and the contained air is refined to generate nanobubbles. Is done.

In the nanobubble generating apparatus 1 according to the present embodiment made as described above, the generating means 3 is provided with a'tube' having an inlet 41 through which the mixed water flows into both ends and a discharge outlet 42 through which the mixed water flows. Pipe; pipe)' shaped nozzle tube (4) and; In the nozzle tube 4, the inlet 41 is bound to an outer circumferential surface on which it is arranged, and the outer circumferential surface is in contact with the inner circumferential surface of the transport space A through which the mixed water is transferred, and has a shape of an outer diameter and a shape in contact with the plate. 'Has a base plate (5) of the shape.

That is, by dividing the divided space so that the divided space is arranged in series in the direction of the conveying direction in which the mixed water is conveyed to the conveying space A through which the mixed water is moved through the base plate 5, the mixed water is applied to the base plate 5 ) Flowing through the surface of the nozzle tube 4 into the inlet 41 and then discharged to the outlet 42.

At this time, while the mixed water is guided to the surface of the base plate 5 and is subjected to collision pressure and shear pressure while being first nanobubbled, while penetrating through each divided space through the nozzle tube 4 Is moved.

On the other hand, the inner circumferential surface forming a space connecting the inlet 41 and the outlet 42 in the nozzle pipe 4, the inclined surface 43, the inner diameter of which gradually narrows toward the direction of the outlet 42 It is made including.

That is, while the mixed water is being moved while passing through the inside of the nozzle tube 4, while guiding the inclined surface 43 to form a vortex and secondarily nanobubble, it is moved to the discharge port 42.

In addition, the discharge port 42, the inner diameter is gradually formed larger toward the end from the nozzle tube (4) at a point connected to the inclined surface (43).

That is, the mixed water is jetted while being nano-bubbed tertiarily as it spreads outward while being tortled outward through the discharge port 42.

And the generating means (3) is disposed with a gap between the discharge port (42) of the nozzle tube (4) in the movement direction of the mixed water in the transfer space (A) and the base plate (5) Collision having a'plate' shape having an outer diameter and a shape through which the mixed water passes through, having an interval between the inner circumferential surface of the transport space (A) having the outer diameter smaller than the outer diameter to which the mixed water is transferred. It further comprises a plate (6).

That is, the collision plate 6 is arranged to face at a right angle to the conveying direction in which the mixed water is conveyed in the divided space divided by the base plate 5 with respect to the conveying space A where the mixed water is conveyed. , As the mixed water sprayed from the discharge port 42 of the nozzle tube 4 collides with the surface of the collision plate 6 and is radially distributed outside the collision plate 6, collision pressure and shear Under pressure, it is moved as it becomes nano-bubble fourth.

As described above, while the mixed water is being transported from the transport space (A), while being guided to the base plate (5), the nozzle tube (4), and the collision plate (6) while passing through each divided space, , As the nanobubbles are formed by receiving the collision pressure and the shear pressure in multiple stages, the nanobubble is promoted to maximize the efficiency of generating the nanobubbles.

In the above, it is preferable that the base plate 5, the nozzle tube 4, and the collision plates 6 are respectively arranged such that each center coincides with the center of the transfer space A to which the mixed water is transferred.

That is, when the mixed water is conveyed while passing through the base plate 5, the nozzle tube 4, and the collision plates 6, the mixed water is transferred outwardly relative to the center of the transfer space A to which the mixed water is transferred. It is conveyed while realizing the shape of a'wave' in the form of a'concentric circle', and the impact pressure on the mixed water by the base plate 5 and the nozzle tube 4 and the collision plates 6 and It is most preferable to be transferred while maximizing the shear pressure.

In addition, on the surface facing the discharge port 42 of the nozzle tube 4 in the collision plate 6, as shown in FIGS. 7 and 8, the inner circumferential surface from the center of the collision space where the mixed water collides A'ring' having a protruding piece 61 having a shape may be provided.

That is, the nanobubbles are further promoted by imparting different collision pressures and shear pressures to the mixed water guided outward after colliding with the collision plate 6 through the protruding pieces 61.

Accordingly, the efficiency of generating nanobubbles is maximized.

In the projecting piece 61, it is preferable that a plurality of the colliding plates 6 are formed to be projected while being arranged in a concentric shape; Accordingly, it is most preferable that the nanobubbles are further promoted by receiving collision pressure and shear pressure while passing through the plurality of protruding pieces 61 respectively while the mixed water is guided outward from the collision plate 6. Do.

And the generating means (3), further comprising a binding member for coupling while connecting the collision plate (6) and the base plate (5); The binding member, through the base plate 5 and the'fixing holes' respectively formed on the collision plate 6, respectively, and a binding bolt 71 formed with a screw portion made of threads on the outer circumferential surface; A plurality of bundling nuts 72 screwed to the bundling bolts 71 and arranged and fixed so as to have a gap between the base plate 5 and the collision plate 6 on the bundling bolts 71; It is made including.

That is, through the binding bolt 71, the base plate 5 and the collision plate 6 are fixed to have a gap between each.

Accordingly, as illustrated in FIGS. 5 and 6, the nozzle tube 4 and the collision plate 6 are disposed while selectively adjusting the spacing between the base plate 5 and the collision plate 6. By controlling the interval between the, the nanobubble generation environment is selectively implemented.

Accordingly, it is possible to design while controlling the selective nanobubble generation environment by the user, thereby improving usability.

On the other hand, the outer peripheral surface of the nozzle tube 4 is preferably formed of a screw portion made of threads, in the state in which the nozzle tube 4 penetrates into the through hole formed in the center of the base plate 5, The base plate 5 is coupled to the outer circumferential surface of the nozzle tube 4 by fixing nuts 51 screw-connected with the inner portion of the nozzle tube 3 to the upper and lower parts of the base plate 5, respectively. It is most desirable.

The nano-bubble generating device 1 according to the present embodiment made in this way has a gap between the plurality of generating means 3 in the conveying direction of the mixed water in the conveying space A of the body 2. Spaced means (8) are arranged to be spaced apart; further comprises; The separating means (8) is preferably made of a projecting portion that protrudes while extending from the collision plate (6) toward the conveying direction of the mixed water.

That is, the base plate 5 of the collision plate 6 and the other generating means 3 is faced with a gap between the separation means 8 made of a protrusion, and the plurality of generating means 3 They are arranged on the transfer space (A) to have a linear arrangement in the transfer direction of the mixed water, and the mixed water is transferred while passing through the plurality of generating means (3), respectively.

Accordingly, multi-stage impact pressure and shear pressure are respectively applied to the mixed water, thereby increasing the efficiency of generating nanobubbles.

In the above, the separating means is preferably made of an end portion of the binding bolt 61 that extends to the outside while penetrating the fixing hole of the collision plate 6.

That is, the separation means 8 can be implemented without a separate component, thereby realizing structural simplification.

The nano-bubble generating device 1 according to the present embodiment made as described above, a plurality of the generating means (3) is arranged to be connected to a desired number while forming a desired interval through the separation means (8); According to the user's choice, it can be formed by adjusting the number of fastening, the use efficiency is improved.

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

First, while the mixed water of water and air has a predetermined pressure through an inlet pipe and a pump not shown, it is introduced into the inlet 21 of the body 2 and discharged to the outlet 22 while being discharged to the transport space. On (A), the base plate (5) constituting the generating means (3), the nozzle tube (4) and the collision plates (6) are transferred while sequentially passing through them.

At this time, the air contained in the mixed water is applied through the base plate (5), the nozzle tube (4), and the collision plate (6), respectively, to apply a collision pressure and a shear pressure to generate nanobubbles.

Although the present invention has been described as an example as described above, the present invention is not necessarily limited to these examples, and may be variously modified without departing from the technical spirit of the present invention. Therefore, the examples disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these examples. The scope of protection of the present invention should be interpreted by the following claims, and all technical spirits within the equivalent range should be interpreted as being included in the scope of the present invention.

1: Nano bubble generator 2: Body
21: Entrance 22: Exit
3: generating means 4: nozzle tube
41: inlet 42: outlet
43: slope 5: base plate
51: fixing nut 6: collision plate
61: protrusion 71: binding bolt
72: binding nut 8: separation means

Claims (3)

A body having a'pipe' shape having an inlet and an outlet through which water and air mixed water flows from both ends; It is provided between the inlet and the outlet in the body and has a transport space to which the mixed water is transferred. Generation means adapted to generate nanobubbles by applying collision pressure and shear pressure to the mixed water. In;
The generating means,
A nozzle pipe having a'pipe' shape provided with an inlet through which the mixed water is introduced and an outlet through which the mixed water is introduced; A base plate having a'plate' shape having an outer diameter and shape in contact with the inner circumferential surface of the transport space through which the mixed water is transferred, the outer circumferential surface being bound to the outer circumferential surface where the inlet is disposed in the nozzle tube; The interval between the inner circumferential surface of the transfer space in which the mixed water is transferred by having an outer diameter smaller than the outer diameter of the base plate and arranged with a gap between the discharge port of the nozzle tube in the movement direction of the mixed water in the transfer space. A collision plate having a'plate' shape having an outer diameter and a shape through which the mixed water passes; Nano-bubble generation device comprising a; binding member for coupling while connecting the collision plate and the base plate. The method of claim 1;
The spacer is arranged to be spaced apart from each other with a distance between the plurality of generating means in the conveying direction of the mixed water on the conveying space of the body.
The separation means,
Nanobubble generation device, characterized in that consisting of a protrusion that protrudes while extending from the collision plate toward the transport direction of the mixed water. The method of claim 1;
The inner peripheral surface forming a space connecting the inlet and the outlet in the nozzle tube,
It comprises an inclined surface whose inner diameter gradually narrows toward the discharge port side, and the mixed water moves to the discharge port while forming a vortex;
The discharge port,
The nano-bubble generating device, characterized in that the inner diameter is gradually formed larger toward the end from the nozzle tube at the point connected to the inclined surface to be discharged while the mixed water is diffused to the outside.

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