KR101850223B1 - Nano-bubble generator - Google Patents

Abstract

The present invention relates to a nano-bubble generation apparatus. The nano-bubble generation apparatus can apply impact and pressure to mixed air in the process of moving mixed water of water and air and split the air in a nano-scale to generate nano-bubbles. The nano-bubble generation apparatus includes: a generation tank including an inlet for receiving the mixed water of water and air from the outside; a generating means which is arranged in the generation tank, has a conveying path for conveying the mixed water, and applies the impact load and conveying pressure to the mixed water, and generates nano-bubbles; a supply pump which receives the mixed water and pumps and supplies the mixed water to the generation tank; and a supply means which receives the mixed water of water and air from the outside and supplies the mixed water to the supply pump. The supply means includes a supply tank having a supply port for receiving the mixed water including water and air from the outside. Exhaust pipes are arranged on the upper end of the supply tank to discharge the air included in the mixed water supplied through the supply port to the outside. The exhaust pipes are connected to a discharging means having the operation controlled by a control means controlling the power supply applied from a power supply unit while discharging the air pressure remaining in the supply tank to the outside.

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, It is possible to easily apply the present invention to a facility requiring a large-capacity nano-bubble, and in particular, to supply a supply space for generating nano bubbles by pumping mixed water The present invention relates to a nano bubble generator capable of stably generating nano bubbles by smoothly controlling the input air pressure of mixed water to the pump to be adjusted to the output air pressure.

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.

In contrast, the applicant of the present invention has found that, in the process of moving mixed water in which water and air are mixed, the mixed air is bombarded in nano units by applying impact and pressure to generate nano bubbles; 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 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; A nano bubble generator is provided inside the upper end of the above-mentioned generation tube, with a vortex tube having a wide upper end and a narrow lower end 'fall tube' shape.

However, in the nano bubble generator proposed by the applicant of the present invention as described above, when the input air pressure of the mixed water to the feed pump for feeding the mixed water to the generation space where the nano bubbles are generated is larger than the output air pressure, There is a problem in that the impeller is not pumped properly and the nano bubble is not properly generated.

1. Korean Patent Registration No. 10-1146040

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide an air- The present invention can be applied to a facility requiring a large-capacity nano-bubble, and in particular, it is possible to apply the input air pressure of the mixed water to the supply pump which pumps the mixed water to supply the generated space where nano- The present invention is to provide a nano bubble generator capable of stably generating nano bubbles because it can be smoothly pumped and regulated in accordance with the output air pressure.

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; A supply pump having a transfer passage and adapted to generate a nano bubble by applying a collision load and a transfer pressure to the mixed water, a supply pump for supplying mixed water to the generation tank from outside and supplying the mixed water, And a supply means for supplying a mixed water of water and air into the supply pump, the apparatus comprising: The supplying means has a supply tank having a supply port for receiving mixed water of water and air from the outside; An exhaust pipe is provided at an upper end of the supply tank so that air contained in the mixed water supplied through the supply port discharges air to the outside; The exhaust pipe is connected to a discharge means for discharging the air pressure remaining inside the supply tank to the outside and being controlled to be driven by a control means for controlling a power applied from the power supply unit; The control means may include a first air pressure sensing sensor disposed at an inner upper portion of the supply tank to sense air pressure and a second air pressure sensor sensed by second air pressure sensors adapted to sense air pressure contained in the fluid discharged from the supply pump When the air pressure detected by the first air pressure sensor is larger than the air pressure sensed by the second air pressure sensor by 0.5% or more, And the discharging means is driven to discharge the remaining air pressure to the outside of the supply tank.

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

In addition, it is possible to smoothly pump and supply the input air pressure of the mixed water to the supply pump which pumps the mixed water to the generation space where nano bubbles are generated, so that it can stably generate nano bubbles Effect.

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 partial schematic outline example of a discharge means constituting the nano bubble generating device according to the present embodiment. Fig.
Fig. 3 is a schematic view showing a control state of the nano bubble generator according to the embodiment. Fig.
Fig. 4 to Fig. 5 are schematic outline examples of the operation of the nano bubble generator according to the present embodiment.

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 3 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 generating device 1 according to the present embodiment has a transfer passage which is provided inside the generation tank 2 and through which the mixed water is transferred and applies a collision load and a transfer pressure to the mixed water, And a generating means 3 for generating bubbles.

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 the inlet port is connected to the discharge pipe 41 of the supply pump 4 which pumps and supplies the mixed water; 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).

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.

The discharge pipe (41) of the supply pour (4) Preferably, a check valve 25 is provided to prevent backflow of the mixed water; It is most preferable that the check valve 25 is provided with a pressure sensor for sensing the pressure inside.

The nano bubble generator 1 according to the present embodiment includes a supply tank 61 having a supply port for receiving mixed water of water and air from the outside, And a supply generation pipe (62) having a conveyance passage through which the mixed water is conveyed and connected to generate nano bubbles by applying a collision load and a conveying pressure to the mixed water, and to supply mixed water to the feed pump (4) And a supply means (6).

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 is provided inside the supply tank 61 and has a conveyance passage through which the mixed water is conveyed to apply a collision load and a conveying pressure to the mixed water, In the process of transferring the mixed water stored in the supply tank 2 through the supply generation pipe 62, the air contained in the mixed water is finely impregnated with the impingement pressure and the transfer pressure, .

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.

The supply means 6 is disposed at a position higher than the pump chamber of the supply pump 4 so that when the fluid is supplied to the supply tube 62, Thereby forming a vacuum state.

In the nano bubble generator according to this embodiment, a vacuum pump 8 is connected to the upper end of the supply tank 61 so as to pump the air pressure generated therein to the outside, 61 may be formed in a vacuum state; Accordingly, the mixed water can be forcedly sucked into the supply tank 61 through the supply pump 4.

In the nano bubble generator 1 according to the present embodiment as described above, the air contained in the mixed water supplied through the supply port is supplied to the upper end of the supply tank 61 to discharge air to the outside An exhaust pipe 66 is provided; The exhaust pipe 66 is connected to the exhaust pipe 66. The exhaust pipe 66 discharges air pressure remaining in the supply tank 61 to the outside and is controlled to be driven by a control means 9 for controlling the power supplied from the power supply unit 8. [ Means 10 are connected.

That is, the control means 9 controls the discharge means 10 to discharge the air pressure remaining in the supply tank 61 to the outside.

The control means 9 includes a first air pressure sensor AS1 disposed in the upper portion of the supply tank 61 to sense the air pressure, The air pressure sensed by the first air pressure sensor AS1 is calculated by using the sensed data sensed by the second air pressure sensors AS2 arranged on the discharge pipe 41 to sense the air pressure sensed by the first air pressure sensor AS1, 0.5% or more greater than the air pressure sensed by the second air pressure sensor AS2. It is preferable that the discharging means 10 is driven to discharge the air pressure remaining in the upper portion of the supply tank 61 to the outside.

Accordingly, the input air pressure of the mixed water to the supply pump 4, which pumps the mixed water to supply the generated water to the generation tank 2 in which the nano bubbles are generated, can be adjusted so as to be suited to the output air pressure, And nano bubbles are stably generated.

In the nano bubble generator 1 according to this embodiment, the discharging means 10 is connected to the exhaust pipe 66 and includes a receiving chamber 11 (see FIG. 1) for receiving fluid discharged from the exhaust pipe 66, A discharge pump 12 whose drive is controlled to discharge the fluid contained in the receiving tank 11 to the outside and a control of the control means 9 is controlled to be controlled And an exhaust valve (13) for opening and closing the inflow of the fluid in the exhaust pipe (66).

That is, after the control unit 9 controls the control unit 9 to receive the excess air pressure remaining in the supply tank 61 through the exhaust valve 13 into the raking tank 11, To the outside.

On the other hand, in the above-mentioned receiving tank 11, it is preferable that an exhaust hole for discharging the air pressure remaining in the inner upper portion to the outside is formed.

The discharge pump 12 may be composed of a vacuum pump sucking pump that pumps water and air to the outside, a drain pump adapted to pump water, or a vacuum pump capable of pumping air. It is most preferable to apply it according to the user's selection.

It is preferable that the water level sensor 14 for sensing the level of the fluid received in the receiving tank 11 and applying the sensed level data to the control means 9 is provided in the receiving tank 11 ; The controller 9 controls the discharge pump 12 based on the data set based on the level data sensed by the level sensor 14 so that the fluid contained in the receptacle 11 is discharged to the outside It is most preferable to be discharged.

Accordingly, when the exhaust valve 13 is opened and the mixed water continuously supplied to the supply tank 61 flows into the receiving tank 11, the water level sensor 14 senses it And the control means 9 controls the discharge pump 12 to drive the fluid accommodated in the water receiving tank 11 until the fluid level reaches the set water level according to the sensed water level data, When the fluid contained in the tank 11 reaches the set minimum level, the driving of the discharge pump 12 is stopped and the exhaust valve 13 is closed, so that all the air pressure is removed from the inside of the supply tank 61 State.

Therefore, the pump operation can be smoothly performed by adjusting the input air pressure of the mixed water to the supply pump 4 (the air pressure of the supply tank) to the output air pressure (the air pressure of the discharge pipe).

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

First, the mixed water in which water and air are mixed is introduced into the generation (2) tank via the discharge pipe (41) while having a predetermined pressure through the supply pump (4) Reaches the upper end of the generation tube 31 and is provided at the upper end of the generation tube 31 and drops freely into the vortex tube 33 to form a vortex while falling into the tube 31 , And is 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.

On the other hand, the air pressure remaining in the supply tank 61 to which mixed water is supplied to the supply pump is formed to be larger than the air pressure remaining in the discharge pipe 41, so that the supply pump 4 smoothly performs the pump operation Before you can not; When the air pressure sensed by the first air pressure sensor AS1 senses data that is greater than 0.5% greater than the air pressure sensed by the second air pressure sensor AS2. The control valve 9 is operated to open the exhaust valve 13 to allow the mixed water continuously supplied to the supply tank 61 to flow into the receiving tank 11.

At this time, the water level sensor 14 senses this, and the control means 9 controls the discharge pump 12 in accordance with the sensed level data, And stops the driving of the discharge pump 12 and closes the exhaust valve 13 when the fluid contained in the receiving tank 11 reaches the set minimum water level.

Accordingly, the air pressure in the supply tank 61 is completely removed.

Therefore, the pump operation can be smoothly performed by adjusting the input air pressure of the mixed water to the supply pump 4 (the air pressure of the supply tank) to the output air pressure (the air pressure of the discharge pipe).

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 10: exhausting means
11: Receiving tank 12: Discharge pump
13: exhaust valve 14: water level sensor
2: generation tank 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
41: discharge pipe 5: auxiliary generating means
6: Supply means 61: Supply tank
62: supply generation pipe 63: suction pipe
64: supply opening / closing valve 65: supply outflow pipe
66: Exhaust pipe 7: Connector
71: connection opening / closing valve 72: connection withdrawal pipe
8: power supply unit 9: control means

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 A supply pump for supplying the mixed water from the outside to pump the mixed water into the generation tank and supplying mixed water of water and air from the outside to supply the mixed water to the supply pump, 1. A nano bubble generator comprising:
The above-
A supply tank having a supply port for receiving mixed water of water and air from the outside;
At the top of the feed tank,
And an exhaust pipe through which the air contained in the mixed water supplied through the supply port discharges air to the outside;
In the exhaust pipe,
A discharge means for discharging air pressure remaining in the supply tank to the outside and being driven by a control means for controlling power supplied from a power supply unit is connected;
The control means,
A first air pressure sensor disposed in the upper portion of the supply tank to sense air pressure, and second air pressure sensors sensed by the air pressure contained in the fluid discharged from the supply pump, When the air pressure detected by the first air pressure sensor is greater than 0.5% greater than the air pressure sensed by the second air pressure sensor. And the discharge means is driven to discharge the remaining air pressure to the outside of the supply tank.

Images