KR20180046684A - Nano-bubble generator - Google Patents

Abstract

The present invention relates to a nano-bubble generation apparatus. Nano-bubbles are generated by being made to be fine by applying a collision and pressure to mixed air in a process of moving the mixed water mixed with water and air. The nano-bubble generation apparatus comprises: a generating tank having an inlet which receives mixed water of water and air from the outside; and a generating means which is provided inside the generating tank, has a transfer path through which the mixed water is transferred, and generates nano-bubbles by applying a collision load and transfer pressure to the mixed water. The generating tank is made of a box-shaped container having a space part in which the mixed water is filled. An inlet pipe through which the mixed water is introduced is connected to the inlet. In a part of the lower end thereof, a fluid remaining in the generator may be discharged to the outside, and an exit pipe opened and closed by an opening and closing valve may be connected. A pressure valve is provided at an upper end thereof to discharge air to the outside at predetermined air pressure or a higher level set with respect to air pressure generated therein. The generating means includes: a pipe-shaped generating tube vertically standing in a vertical direction inside the generating tank; and a supply pipe connected to a lower end of the generating pipe to receive the mixed water passing through the generating pipe and supply the mixed water to the outside. Inside the upper end of the generating tube, a tubal vortex tube having a wide upper end and a narrow lower end is provided.

Description

Nano-bubble generator

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nano bubble generating device for generating nano bubbles which are micro bubbles having a diameter of nano units, and more particularly, The present invention relates to a nano bubble generator capable of generating nano bubbles by miniaturization and being easily applied to a facility requiring a large-capacity nano bubble because it is advantageous in size.

In general, nano bubbles are microscopic air bubbles that can not be seen by eyes. They are 1 / 2,000 size of normal bubbles and are minute air pores of skin pores less than 25 μm. When they disappear, 1) 40KHz ultrasonic waves are generated. 2) And 3) an instantaneous high temperature of 4,000 to 6,000 degrees is generated.

That is, the normal bubbles rise in the water and rupture at the surface, but the nano bubbles are reduced by the pressure in the water and generate various energy and disappear.

Such a nano bubble occurs when the water and the air are vigorously rotated by the ultra-fine bubble.

Such nano bubbles have been utilized in various fields by physical and chemical characteristics such as "gas dissolving effect, self-pressurizing effect, and charging effect". In recent years, the nano bubbles have been used for various aquaculture and hydroponics, In medical field, it is used for precision diagnosis, and in various fields, it is used in physical therapy, high-purity water treatment, environment device and the like.

In other words, the field of use is wide ranging from hot spring bath to cancer diagnosis, it is known that it has excellent sterilization effect as well as regenerating skin.

The nano bubbles are generated by various methods such as a circulating liquid flow type, a state liquid type, an ejector type, a vanishing type, a pressure dissolving type, an ultrasonic type, an electrolysis type, and a micro pore filter type.

In order to generate nano bubbles through the various types of nano bubble generating devices, nano bubbles are generated by converting a gas into a fine nano-bubbles by supplying a liquid (supply water) mixed with a gas.

The process of converting the supply water to the microfluidic system is performed through the process of separating and compressing the supply water containing the bubbles while passing through the micropilot of the generation means provided with the microfilm.

As described above, Korean Patent Registration No. 10-1146040 (name: a nano bubble generator) is one of the nano bubble generating devices for generating nano bubbles. The nano bubble generating device, as described in the publication, A bubble generation chamber provided with a water inlet port through which water is introduced and an air inlet port through which air is introduced and a discharge port through which air is introduced; a water supply port provided between the water inlet port and the air inlet port and the discharge port of the bubble generation chamber, And a plurality of induction holes through which water introduced through the air inlet is guided, and a plurality of induction holes for guiding water and air introduced through the induction hole in the outward direction, And a plurality of stirring pieces protruded in the direction of the rotating disk to stir the water and air according to the rotation of the rotating disk It consists of a disc information.

As a result, water and air are stirred while being frictioned with the agitating pieces, and friction between the agitating pieces is made while passing through the jig jack. Therefore, water and air are strongly stirred and pressed at the same time.

Such a shock-type micro-bubble generator requires a high pressure of 5 to 20 bar, has a large flow loss, requires a large number of nozzles and a large-volume mixing tank, thereby complicating the structure and equipment of the apparatus .

On the other hand, in the apparatus for generating fine bubbles in the circulating liquid flow system, as in the impact type nozzle system, a mixed water in which water and air are mixed is transferred through the space in the form of a vortex, And the nano bubbles are generated by the vortex pressure generated while the mixed water is formed while forming the vortex flow.

However, such a circulating liquid flow type micro-bubble generating apparatus has a problem that a micro-bubble can not be generated through a single nozzle, a high pressure is required, and a bulky mixing tank is required.

In addition, there is a structural problem that can not be suitably applied to a facility requiring a large-capacity nano bubble.

1. Korean Patent Registration No. 10-1146040

Disclosure of Invention Technical Problem [8] The present invention has been proposed in order to solve the problems of the conventional nano bubble generating devices as described above, and an object of the present invention is to provide a nano- To provide a nano bubble generator capable of generating nano bubbles and being easily applied to a facility requiring a large-capacity nano-bubble because it is advantageous in size-up.

According to an aspect of the present invention, there is provided a nano bubble generator comprising: a generator having an inlet for receiving mixed water of water and air from the outside; And a generating means for generating a nano bubble by applying a collision load and a transfer pressure to the mixed water, the nano bubble generating device having a transfer path, the apparatus comprising: The generating vessel includes a box-shaped housing having a space for receiving mixed water therein. The inlet pipe is connected to an inlet pipe through which the mixed water flows, And an outlet pipe connected to the outlet pipe is connected to the outlet pipe. The upper end of the outlet pipe is provided with a pressure valve capable of discharging air to the outside from the air pressure set for the air pressure generated therein ≪ / RTI > The generating means may include: a tube having a shape of 'pipe' which is provided upright in a vertical phase inside the generating tank; a water pipe connected to a lower end of the tube to receive mixed water passing through the tube, And a supply pipe adapted to be supplied to the outside; In the inside of the upper end of the above-mentioned generation pipe, a whirl pipe is provided which is wide at the upper end and narrow at the lower end.

The nano bubble generator according to the present invention as described above is advantageous in that it can expand the size of the generation tube that generates nano bubbles while generating water while mixing water and mixed water, So that the efficiency of use can be increased.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a nano bubble generator according to an embodiment of the present invention; FIG.
Fig. 2 is a schematic illustration showing the operating state of the nano bubble generator according to the embodiment. Fig.
Fig. 3 and Fig. 4 are schematic views showing auxiliary generating means applied to the nano bubble generating apparatus according to the present embodiment. Fig.
FIG. 5 is a schematic view showing a nano bubble generator according to another embodiment of the present invention. FIG.
FIG. 6 is a schematic view showing a nano bubble generator according to another embodiment of the present invention. FIG.

Hereinafter, a nano bubble generator 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 can be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This embodiment is provided to more fully describe the present invention to those skilled in the art. Therefore, the shapes and the like of the elements in the drawings can be exaggeratedly expressed to emphasize a clearer description. It should be noted that in the drawings, the same members are denoted by the same reference numerals. Detailed descriptions of well-known functions and constructions which may be unnecessarily obscured by the gist of the present invention are omitted.

1 and 4 are views showing a nano bubble generating device according to an embodiment of the present invention. In the nano bubble generating device 1 according to the present embodiment, mixed water of water and air is introduced from the outside During the conveyance, collision and pressure are applied to refine the mixed air to generate nano bubbles and discharge.

The nano bubble generator 1 according to the present embodiment has a generator 2 having an inlet for receiving mixed water of water and air from the outside.

That is, the mixed water supplied through the inlet of the generation tank 2 is accommodated therein.

In this case, the generating tank 2 preferably comprises a box-shaped enclosure having a space portion in which mixed water is introduced therein, The inlet pipe is connected to an inlet pipe 21 through which the mixed water flows, and a part of the lower end of the inlet pipe discharges the fluid remaining in the generation tank 2 to the outside. It is most preferable that the connecting portion 23 is connected.

That is, mixed water flowing through the inflow pipe 21 is stored therein, and if necessary, the fluid remaining in the inside can be drained to the outside through the outflow pipe 23 for inspection and repair.

In the meantime, it is preferable that the upper end of the generator tank 2 is provided with a pressure valve 24 for exhausting air to the outside at an air pressure higher than the air pressure generated inside the generator tank 2.

In other words, air floating on the upper portion of the generation tank 2 is discharged to the outside through the pressure valve 24 to secure a space for receiving the mixed water in the generation tank 2.

The nano bubble generator 1 according to the present embodiment thus constructed has a transfer passage which is provided inside the generation tank 92 and through which the mixed water is transferred and applies a collision load and a transfer pressure to the mixed water, (3) adapted to generate an electric current.

That is, in the process of transferring the mixed water stored in the generation tank 2, the impact pressure and the transfer pressure are applied, and the air contained in the mixed water is refined to generate nano bubbles.

The generating means 3 includes a generating tube 31 in the form of a tube which is vertically provided upright inside the generating tank 2 and a lower end And a supply pipe (32) connected to the discharge pipe (31) to supply mixed water flowing through the generation pipe (31) to the outside.

That is, the mixed water stored in the generation tank 2 flows into the interior of the generation tube 31 through the upper end of the generation tube 31 and then flows into the supply tube 32 through the lower end thereof. Nano bubbles are generated by shear pressure.

In the meantime, it is preferable that a vortex tube 33 having a wide upper end and a narrow lower end is provided in the upper end of the generation tube 31.

That is, mixing water is transferred into the generation tube 31 through the vortex tube 33 while being vortexed to further increase the shear pressure, thereby maximizing the generation efficiency of the nano bubbles.

In the nano bubble generator 1 according to the present embodiment as described above, it is preferable that a feed pump 4 is connected to the inflow pipe 21 to supply mixed water to the inflow pipe 21, The mixed water is forcibly supplied to the generation tank 2 through the supply pump 4, thereby further increasing the transfer pressure of the fluid.

As a result, the generation of the nano bubbles in the generation tank 2 is performed more smoothly.

The supply pipe (32) is provided with auxiliary generating means (5) for accelerating the generation of nano bubbles by simultaneously applying a collision pressure and a different shear pressure to the feed pressure while the mixed water containing nano bubbles is being conveyed .

That is, the nano bubble saturation rate of the mixed water supplied from the supply pipe (32) to the use place is further improved through the auxiliary generating means (5).

3 and 4, the auxiliary generating means 5 includes an auxiliary pipe 51 which is in contact with the supply pipe 32 and an auxiliary pipe 51 which is inserted into the auxiliary pipe 51 Shaped plate having a through-hole, which is arranged and fixed in the longitudinal direction of the mixer and is arranged at a distance in a direction orthogonal to the direction in which the mixed water is conveyed, (52). And a 'ring' shaped lattice rings 53 provided at the intervals between the impact bodies 52 and forming a transfer space for the mixed water between the impact bodies 52 Do.

That is, the mixed pressure water and the air mixed in the auxiliary pipe (51) are supplied with the transfer pressure and the collision load through the transfer passage formed at the interval between the impact bodies (52) The air mixed in the mixed water is miniaturized into nano units to generate nano bubbles.

The supply pipe 32 is connected to an auxiliary discharge pipe (not shown) which is opened and closed by the auxiliary opening / closing valve 34 to discharge the fluid remaining in the generation pipe 31 and the supply pipe 32 to the outside, 35 are most preferably connected.

In the above-mentioned inlet pipe 21, Preferably, a check valve 25 is provided to prevent backflow of the mixed water; It is most preferable that the check valve is provided with a pressure sensor for sensing the pressure inside.

Hereinafter, the operation and effect of the nano bubble generator 1 according to the present embodiment will be described in detail.

First, mixed water in which water and air are mixed is introduced into the generation (2) tank via the inflow pipe (21) while having a predetermined pressure through the supply pump (4) The water level reaches the upper end of the generation pipe 31 and is provided at the upper end of the generation pipe 31 to fall freely into the vortex pipe 33 to form a vortex, And then supplied to the use place through the supply pipe 32.

At this time, a shear pressure is generated at the inner circumferential surface of the generation tube 31 to generate nano bubbles.

The mixed water containing nano bubbles generated in the generation tube 31 is supplied through the auxiliary generating means 5 in a state where the saturation rate of the nano bubbles is increased.

FIG. 5 is a view showing a nano bubble generating device according to another embodiment of the present invention. The nano bubble generating device 1 according to the present embodiment includes a supply port for receiving mixed water of water and air from the outside, And a feed passage provided in the feed tank 61 for feeding the mixed water and applying a collision load and a feed pressure to the mixed water to generate nano bubbles, (6) having a supply generating tube (62) connected to supply mixed water to the mixing tank (4).

That is, mixed water containing nano bubbles is supplied to the feed pump 4 through the feeding means 6 to further improve the generation efficiency of the nano bubbles.

In this case, the supply tank 61 preferably comprises a 'box' shaped enclosure having a space portion in which the mixed water is introduced, The supply port is connected to a suction pipe (63) through which the mixed water flows, and a part of the lower end thereof discharges the fluid remaining in the supply tank (61) to the outside. It is most preferable that the reject pipe 65 is connected.

That is, the mixed water flowing through the suction pipe 63 is stored therein, and if necessary, the fluid remaining in the inside can be drained to the outside through the discharge outflow pipe 65 to be inspected and repaired.

The nano bubble generator 1 according to the present embodiment has a feed passage provided inside the feed tank 61 for feeding the mixed water and applying a collision load and a feed pressure to the mixed water, The air contained in the mixed water is finely impregnated with the impinging pressure and the conveying pressure in the process of conveying the mixed water accommodated in the feed tank 2 through the supply generating tube 62, .

The supply generating tube 62 is formed of a tube shaped like a pipe which is vertically upright in the supply tank 61. The lower end of the supply generating tube 62 A connection pipe 7 connected to the supply pump 4 and supplied with mixed water flowing through the supply generation pipe 62 and supplied to the outside is inserted.

That is, the mixed water stored in the supply tank 61 is introduced into the supply tube 62 through the upper end of the supply tube 62, and then, while being transported to the connection tube 7 through the lower end, Nano bubbles are generated by the shear pressure on the inner circumferential surface.

Meanwhile, it is preferable that a supply vortex tube 66 having a wide upper end and a narrow lower end is provided in the upper end of the supply tube 62.

That is, mixing water is fed into the supply tube 62 through the supply vortex tube 66 to increase the shear pressure, thereby maximizing the generation efficiency of the nano bubbles.

The connection pipe 7 is connected to the connection pipe 7 and the supply pump 4 so as to discharge the fluid remaining inside the supply pipe 62 and the connection pipe 7 and the supply pump 4, It is most preferable that the connection withdrawal tube 72 opened and closed by the connection tube 71 is connected.

A fluid supply pipe 67 for introducing a fluid into the supply generation pipe 62 is connected to the upper end of the supply tank 61 so that the supply pipe 61 is connected to the supply pipe 61 through the fluid supply pipe 67, It is preferable that the pumping operation for the fluid of the supply pump 4 is easily performed by filling the pipe 62 with the fluid and filling the pump chamber of the supply pump 4 with the fluid to form a vacuum state.

The fluid supply pipe 67 is preferably provided with an opening / closing valve 68 for opening and closing the inside of the fluid supply pipe 67 if necessary.

The supply means 6 is disposed at a higher position than the pump chamber of the supply pump 4 and is configured to supply fluid to the pump chamber of the supply pump 4 when the supply tube 62 is filled with fluid It is most preferable that it is allowed to flow and form a vacuum state.

6 is a view showing a nano bubble generating device according to another embodiment of the present invention. In the nano bubble generating device 1 according to the present embodiment, The vacuum pump 8 is connected to the outside of the supply tank 61 so that the inside of the supply tank 61 can be evacuated. Accordingly, the mixed water can be forcedly sucked into the supply tank 61 through the supply pump 4.

While the present invention has been described with reference to the exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Therefore, the examples disclosed in the present invention are not intended to limit the scope of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

1: Generator 2: Generator
21: inlet pipe 22: opening / closing valve
23: Discharge tube 24: Pressure valve
25: backflow prevention valve 3: generating means
31: Vital tube 32: Supply tube
33: vortex tube 34: auxiliary opening / closing valve
35: auxiliary withdrawal pipe 4: feed pump
5: auxiliary generating means 51: auxiliary tube
52: collider 53: grating ring
6: Supply means 61: Supply tank
62: supply generation pipe 63: suction pipe
64: supply opening / closing valve 65: supply outflow pipe
66: supply vortex tube 67: fluid apposition tube
68: Attachment opening / closing valve 7: Connection pipe
71: connection opening / closing valve 72: connection withdrawal pipe
8: Vacuum pump

Claims (1)

A generating vessel having an inlet for receiving mixed water of water and air from the outside and a conveying passage provided inside the generating vessel for conveying the mixed water and applying a collision load and a conveying pressure to the mixed water to generate a nano bubble And a generating unit adapted to generate a nano bubble;
The above-
And an inlet pipe through which the mixed water flows is connected to the inlet, and a portion of the fluid remaining in the inside of the generating vessel is connected to a part of the lower end of the inlet pipe. And an outlet pipe connected to the outlet pipe is opened and closed by an opening / closing valve. The upper end of the outlet pipe is provided with a pressure valve for discharging air to the outside at an air pressure higher than the air pressure generated inside the upper end.
The above-
A pipe having a shape of 'pipe' which is provided upright in a vertical phase inside the generating tank; a water pipe connected to a lower end of the pipe to receive mixed water passing through the pipe, A supply line;
Inside the upper end of the above-
And a vortex tube having a narrow upper end and a narrow lower end. The nano bubble generator

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