WO2020222388A1

WO2020222388A1 - Microbubble generating device

Info

Publication number: WO2020222388A1
Application number: PCT/KR2019/017254
Authority: WO
Inventors: 지효근; 정윤근; 지현숙; 조수현; 지영배
Original assignee: 주식회사 일성
Priority date: 2019-04-30
Filing date: 2019-12-06
Publication date: 2020-11-05

Abstract

Provided is a microbubble generating device, for generating microbubbles by dissolving gas contained in a process where mixed water containing water and air is transferred via a dissolving space sealed to the outside such that the gas becomes microbubbles, the microbubble generator comprising: a dissolution tank having a supply port connected to a raw water pipe configured to supply raw water so as to receive the raw water having a transfer pressure, a discharge port for discharging, to the outside, the raw water supplied through the supply port, and a dissolving space sealed to the outside in a space between the supply port and the discharge port so as to form a gas dissolving pressure in regard to water; and an air supply means connected to the supply port to supply air from the outside to the dissolving space, wherein the air supply means is configured to designed to supply air through introducing outside air or supplying compressed air depending to the hydraulic environment of the supplied raw water.

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 introduced, A rotating disk provided between the water inlet and the air inlet and the discharge port of the bubble generation chamber, inserted into the shaft of the motor and rotated, and provided with a plurality of guiding holes through which the 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 rotating disk. 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 ordered.

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 to provide a device for generating microbubbles that is configured to generate microbubbles by being microbubbled.

The microbubble generator according to the present invention includes an air supply means configured to selectively supply air through automatic control according to the detected water pressure data and senses the water pressure of the raw water supplied.

The microbubble generation apparatus according to the present invention maintains the quality of the microbubbles in a reasonable manner as air is supplied through the inflow of external air or the supply of compressed air according to the hydraulic environment of the supplied raw water.

1 is a schematic illustration showing a fine bubble generating device according to an embodiment according to the present invention.

2 is a schematic illustration showing a state of use of the microbubble generating device according to the present embodiment.

3 and 4 are schematic diagrams showing air supply means constituting the microbubble generating device according to the present embodiment.

5 and 6 are schematic exemplary views showing another example of an air supply member constituting the microbubble generating device according to the present embodiment.

Figure 7 is a schematic illustration showing a pressing means constituting the microbubble generating device according to the present embodiment.

8 is a schematic exemplified view showing another example of a melting tank constituting the microbubble generator according to the present embodiment.

9 is a schematic exemplified view showing another example of a melting tank constituting the microbubble generator according to the present embodiment.

10 is a schematic illustration showing a control state of the microbubble generating device according to the present embodiment.

[Description of drawing numbers]

1: fine bubble generator 2: dissolution tank

21: supply port 22: discharge port

23: connection pipe 24: air distribution pipe

3: air supply means 31: air compressor

32: connection pipe 33: first one-way check valve

34: back pressure valve 35: water pressure sensor

4: power supply unit 5: control means

51: operation switch 52: display means

6: air supply member 61: air supply pipe

62: second one-way check valve 63: control valve

64: air supply hole 65: through hole

66: inner wall 67: supply hose

68: binding pipe 7: pneumatic check valve

8: pressurizing means 81: inlet

82: outlet 83: pump motor

84: impeller 85: pressurization chamber

A: melting space

A supply port connected to a raw water pipe to supply raw water to receive raw water having a transfer pressure, a discharge port for discharging the raw water supplied through the supply port to the outside, and a space between the supply port and the discharge port against the outside. A dissolution tank that is sealed and has a dissolution space configured to form a dissolution pressure of gas with respect to water; An air supply means connected to the supply port and configured to supply air to the melting space from the outside; The air supply means supplies air through inflow of external air or supply of compressed air according to the hydraulic environment of the supplied raw water.

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 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 generating apparatus 1 according to an embodiment of the present invention includes a supply port 21 connected to a raw water pipe 10 configured to supply raw water having a conveying pressure to receive raw water having a conveying pressure, and , Dissolution of gas in water by being sealed to the outside in a space between the supply port 21 and the discharge port 22 and a discharge port 22 for discharging the raw water supplied through the supply port 21 to the outside. A dissolution tank (2) having a dissolution space (A) configured to form pressure; And an air supply means 3 connected to the supply port 21 to supply air from the outside to the melting space.

That is, the raw water supplied from the raw water pipe 10 and the air supplied through the air supply means 3 are supplied to the supply port 21 to form a mixed water in which water and air are mixed, and the dissolution tank 2 After being supplied to the dissolution space (A) of ), the air is dissolved through the dissolution pressure in the dissolution space (A) to generate microbubbles.

The air supply means (3) is an air compressor (31) configured to receive the power controlled through the control means (5) to be supplied and controlled by the power supply unit (4) to compress and provide external air; It can be made including.

That is, as compressed air is supplied to the melting space A through the air compressor 31, even if the water pressure of the raw water supplied from the raw water pipe 10 is low, the compressed state of the air mixed with the raw water is As the microbubbles are stably generated, the quality of the microbubbles is improved.

In the above, the air compressor 31 is provided at one end being pipe-connected to the supply port 21, and the other end is connected to the raw water pipe 10 and is connected in a connection pipe 32 that is spatially connected to provide compressed air. It may be supplied to the connection pipe 32 to supply air.

In the above, between the connection pipe 32 and the air compressor 31, a first one-way check valve 33 is provided so that air is supplied only in the direction toward the connection pipe 32, and the mixed water It can be made to prevent backflow to (31).

That is, the compression supplied while the supply of compressed air is controlled through the air compressor 31, whose driving environment is controlled by the control means 5, which is selectively adjusted according to the operation of the operation switch 51 by the user. Air is supplied to the supply port 21 through the connection pipe 32 via the first one-way check valve 33 and is mixed with raw water to form mixed water.

At this time, the mixed water is prevented from flowing back to the air compressor 31 through the first one-way check valve 33 to realize stability.

In the above, on the connection pipe spatially connecting the air compressor 31 and the first one-way check valve 33, the air compressor is interlocked with the air compressor 31 through the control of the control means 5 After the driving of the air compressor 31 is stopped, a back pressure valve 34 configured to discharge air pressure formed in a space between the air compressor 31 and the first one-way check valve 33 may be provided.

That is, the re-drive of the air compressor 31 is stably performed; The back pressure valve 34 is driven to close when the air compressor 31 is driven.

In the above, the air supply means 3 has a water pressure detection sensor 35 configured to sense the water pressure supplied to the supply port 21 and transmit the detection data to the control means 5, and the water pressure detection sensor According to the selective opening of the supply port 21 selectively through the control of the control means 5 through the operation of the hydraulic pressure data sensed by 35, each selectively supplies external air.

In the microbubble generating device 1 according to the present embodiment, the air supply means 3 sucks external air by a pressure difference due to the water pressure supplied to the supply port 21 to obtain the supply port 21 ) To be supplied to the air supply member (6); may be made to include more.

Accordingly, depending on the hydraulic environment of the raw water supplied from the raw water pipe 10, the microbubbles are supplied by the inflow of external air through the air supply member 6 or the supply of compressed air through the air compressor 31. Is stably occurring

At this time, when the water pressure of the raw water is higher than the set value, external air is supplied through the air supply member 6; When the water pressure of the raw water is lower than the set value, by supplying compressed air through the air compressor 31; As the air content in the mixed water is formed at a set value, the fine bubble quality is kept constant.

The air supply member 6 includes an air supply pipe 61 connected to the connection pipe 32; A second one-way check valve (62) spatially connected to the air supply pipe (61); It may include a control valve 63 that is spatially connected to the air supply pipe 61 to supply air in a direction toward the second one-way check valve 62 and selectively adjusts the amount of air supplied.

That is, external air with a controlled supply amount is supplied through the control valve 63, and air is supplied to the connection pipe 32 through the supply pipe 61 through the second one-way check valve 62 to be mixed. Form a number

At this time, the mixed water through the second one-way check valve 62 is prevented from flowing back to the outside through the air supply pipe 61, thereby implementing stability.

The control valve 63 is a'electromagnetic valve' that is electrically connected to the control means 5 to selectively adjust the amount of air passing through the controlled power supply supplied by the control means 5. Consists of; It is preferable that the opening and closing is controlled by braking through the control means 5.

On the other hand, the air supply member 6, as shown in Figures 5 and 6, is spatially connected to the raw water pipe 10 and the melting space (A) to supply the mixed water of raw water and air The air supply pipe 61 which is connected while being spatially connected to the conveying passage of the mixed water and has an air supply hole 64 in spatial communication with the outside; It is spatially connected to the air supply hole 64 and opens the supply of air from the outside to the inside so as to inhale the outside air through the feed pressure of raw water formed inside the air supply pipe 61. The second one-way check valve 62 may be included to close the discharged pressure.

That is, a suction pressure for inhaling external air is formed in the air supply pipe 61 according to the supply water pressure of the raw water supplied to the dissolution space A, and accordingly, the external air is checked in the second one direction. After passing through the valve 62 and being supplied to the inside of the air supply pipe 61 through the air supply hole 64 of the air supply pipe 61, it is mixed with the raw water supplied through the raw water pipe 10 It forms mixed water.

As described above, the mixed water generated inside the air supply pipe 61 is supplied to the dissolution space A of the dissolution tank 2, and then the air is dissolved in the raw water to generate microbubbles.

Meanwhile, an inner diameter SL smaller than the inner diameter BL of the air supply pipe 61 between the air supply hole 64 and the end connected to the raw water pipe 10 in the air supply pipe 61 The inner wall 66 in which the through hole 65 is formed is provided.

That is, as the mixed water in the air supply pipe 61 passes through the through hole 65 and transfer pressure increases, the suction force for the external air in the inner space in which the air supply hole 64 is formed It occurs stably, and a stable supply of air is achieved.

The air supply member 6 includes: a supply hose 67 having one end connected to be spatially connected to the second one-way check valve 62; A binding pipe made of a'tube body' in the shape of a'pipe' that is connected so that the other end of the supply hose 67 is spatially connected at the upper end, and is inserted into the air supply hole 64 at the lower end. 68); comprises more.

That is, according to the selected length of the supply hose 67, the spatial range of the supplied external air can be selectively applied, so that the supplied air quality can be selectively adjusted, as well as the connection pipe 68 The one-way check valve 62 can be easily assembled to the air supply pipe 61, thereby improving workability.

The microbubble generating device 1 according to the present embodiment includes sensing data of the water pressure sensor 35 controlled by the control means 5, a driving state of the control valve 63, and the air purifier. It may include a display means 52 configured to display the driving state of 31 and the amount of fine bubbles with respect to the number of generated fine bubbles.

In the microbubble generating device 1 according to the present embodiment, a connection pipe 23 made of a'tube body' in the shape of a'pipe' is spatially provided at the discharge port 22 of the dissolution tank 2 Piped to be connected; The other end of the connection pipe 23 is pipe-connected so that the supply port 21 of the dissolution tank 2 is spatially connected; The supplied mixed water may be microbubbled while passing through each of the pair of dissolution tanks 2 connected in series with each other.

That is, a plurality of the dissolution spaces (A) are arranged in series in the space to which the mixed water is transferred through the connection pipe 23, so that the mixed water is applied with each dissolution pressure in each of the dissolution spaces (A) to form microbubbles. To generate fine bubbles

The dissolution tank 6, as shown in FIG. 8, is provided with an air flow pipe 24 spatially connected to share the air of the air layer formed on the upper part of the dissolution spaces (A), each dissolving space ( It can be made to form the dissolution pressure of A) homogeneously.

That is, the air formed in the plurality of melting spaces (A) is shared with each other through the air flow pipe 24 to stably maintain the amount of air required in each of the melting spaces (A) when microbubbles are generated. Is done.

In the air distribution pipe 24, the air supply member 6 may be bound to supply external air.

That is, when the air pressure formed in the dissolution space (A) is changed by the supply water pressure of the raw water supplied to the dissolution space (A), when the air pressure is formed enough to dissolve the air in the raw water, it is closed to the outside. Become; When air pressure is formed such that air is not dissolved in the raw water, it is opened to the outside; External air may be supplied by the second one-way check valve 62 that is opened and closed according to a change in air pressure.

The microbubble generating device 1 according to the present embodiment, in the dissolution tank 2, in the dissolution space A, as shown in FIG. 9, the level of the mixed water filled in the dissolution space A A pneumatic check valve 7 which is located on the upper side and is opened and closed to the outside according to the air pressure of the melting space A to supply and close the external air; may be provided.

That is, the pneumatic check valve 7 is closed to the outside when an air pressure sufficient to dissolve air in raw water is formed according to the air pressure formed in the dissolution space (A); When air pressure is formed such that air is not dissolved in the raw water, it is opened to the outside; It can be opened and closed according to the variable air pressure.

Accordingly, the raw water supplied from the raw water pipe 10 is supplied to the melting space A through the supply port 21 and then discharged to the outside through the discharge port 22, while the melting space ( A) is to be sealed against the outside; The melting space (A) is formed in a vacuum state (filled state) by raw water to have airtightness with respect to the outside; As the raw water is continuously supplied to the melting space (A), the air density in the melting space (A) increases, thereby increasing the air pressure.

Due to this, the dissolution pressure of air is formed, and at this time, the pneumatic check valve 7 is closed according to the high-pressure air pressure formed in the dissolution space (A) and the inflow of external air is stopped, the dissolution space (A) As the air is dissolved in the air, microbubble is stably generated.

In addition, when the supply of raw water to the melting space (A) is stopped, the microbubble water remaining in the melting space (A) is drained to the outside of the discharge port (22), and the air density in the melting space (A) is low. As it loses, it creates a low pressure air pressure.

At this time, the pneumatic check valve 7 is opened according to the low-pressure air pressure formed in the melting space (A) and external air is introduced.

Accordingly, even if air is supplied to the melting space (A) intermittently, even if air is not forcibly supplied to the melting space (A) through separate facilities and devices, microbubbles are generated later. The air required for the process remains sufficiently in the melting space (A), so that microbubbles are stably generated.

The microbubble generator 1 according to this embodiment has an inlet 81 through which raw water is introduced and an outlet 82 that is discharged and supplied to the raw water pipe 10, as shown in FIG. 7. The rotational force generated by the pump motor 83 is configured to generate a rotational force by receiving the power of the power supply unit 4 through the control of the control means 5 in the space between the 81 and the outlet 82 It may include a pressurizing means (8) having a pressurizing chamber 85 in which the impeller 84 is arranged to pressurize the raw water through and forcibly transport it.

That is, the feed pressure is forcibly formed with respect to the raw water through the pressing means (8).

In the pressurizing means 8, the air supply member 6 may be provided at the inlet 81 to supply air from the outside.

That is, when water forcibly sucked into the inlet 81 is supplied by the rotational force generated through the pump motor 83, the suction pressure generated from the outside toward the inlet 81 to the air supply member 6 External air is forcibly sucked through and supplied, and mixed with raw water, and mixed water in which water and air are mixed is formed in the pressurization chamber 85 and discharged to the outside.

One embodiment of the present invention described above is merely exemplary, and those of ordinary skill in the technical field to which the present invention belongs 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.

Claims

A supply port connected to a raw water pipe configured to supply raw water having a transfer pressure to receive raw water having a transfer pressure, a discharge port for discharging the raw water supplied through the supply port to the outside, and a space between the supply port and the discharge port A dissolution tank having a dissolution space sealed to the outside to form a dissolution pressure of gas with respect to water; An air supply means connected to the supply port and configured to supply air to the melting space from the outside;

The air supply means is configured to supply air through the inflow of external air or the supply of compressed air according to the hydraulic environment of the supplied raw water.
The method of claim 1;

The air supply means,

And an air compressor configured to compress and provide external air by receiving controlled power through a control means adapted to receive and control power from the power supply unit.
The method of claim 2;

The air compressor,

One end is provided by being pipe-connected to the supply port, and the other end is pipe-connected to the raw water pipe;

Between the connection pipe and the air compressor,

A first one-way check valve configured to supply air only in the direction of the connection observation;

On the connection pipe spatially connecting the air compressor and the first one-way check valve,

A back pressure valve is provided to discharge the air pressure formed in the space between the air compressor and the first one-way check valve after the driving of the air compressor is stopped by interlocking with the air compressor through the control of the control means. Microbubble generating device, characterized in that the.
The method of claim 1;

The air supply means,

And an air supply member configured to suck in external air and supply it to the supply port by a pressure difference due to a water pressure supplied to the supply port.
The method of claim 4;

The air supply member,

An air supply pipe connected to the connection pipe; A second one-way check valve spatially connected to the air supply pipe; And a control valve that is spatially connected to the air supply pipe to supply air in a direction toward the second one-way check valve and selectively adjusts the amount of air supplied.
The method of claim 4;

The air supply member,

An air supply pipe spatially connected to the raw water pipe and the dissolution space to supply the mixed water in which the raw water and air are mixed, and the air supply pipe having an air supply hole in spatial communication with the outside; It is spatially connected to the air supply hole and opens the supply of air from the outside to the inside to suck in outside air through the feed pressure of raw water formed inside the air supply pipe and closes the discharge pressure discharged from the inside to the outside. A second one-way check valve; a fine bubble generating device comprising a.
The method of claim 6;

In the interior of the air supply pipe, between the air supply hole and the end connected to the raw water pipe,

And an inner wall having a through hole having an inner diameter SL smaller than the inner diameter BL of the air supply pipe.
The method of claim 1;

In the melting space,

A pneumatic check valve positioned above the level of the mixed water to be filled in the melting space and opened and closed to the outside according to the air pressure of the melting space to supply and close the external air; microbubbles, characterized in that it is provided. Generator.
The method of claim 4;

In a pump motor that has an inlet through which raw water is introduced and an outlet that is discharged and supplied to the raw water pipe, and is supplied with power from the power supply through the control of the control means to the space between the inlet and the outlet to generate rotational force. A pressurizing means having a pressurizing chamber in which an impeller configured to pressurize raw water through the generated rotational force and forcibly transfer it is disposed;

In the inlet of the pressing means,

The air supply member configured to supply air from the outside: k is provided.