KR20170107119A - Nano bubble water generating methode - Google Patents

Abstract

The present invention relates to a method for producing nanobubble water. More specifically, the present invention relates to a method for three-dimensionally producing nanobubble water, intended to output nanobubble water from gas and fluids by producing fine particulate bubbles with 10 m or less particle diameter using a microbubble generator. To this end, nanobubbles are produced by dualizing a nanobuble production part and then are interlocked with a single driving part. The single nanobubble production part induces release and diffusion of the produced nanobubbles in a form of nanobubble water with low pressure for short distance. The other nanobuble production part makes the produced nanobubbles straightly sprayed out in the form of nanobubble water with high pressure for long distance.

Description

[0001] NANO BUBBLE WATER GENERATING METHOD [0002]

More particularly, the present invention relates to a method of generating nano bubble water by generating bubbles of very small particles of 10 μm or less using a micro bubble generator, And the nano bubbles are generated by causing the nano bubbles to diffuse into the nano bubbles at a low pressure with a low pressure in the vicinity of the nano bubbles, The present invention relates to a method of generating three-dimensional nano bubbles in which nano bubbles are linearly injected at a high pressure and at a number of nano bubbles with respect to a long distance.

Generally, a micro bubble is a bubble having a diameter of 50 탆 or less, a micro-nano bubble is 300 nm to 3 탆, and a nano bubble is a micro-bubble having a diameter of 100 nm or less.

Here, 'micro bubble' is a very fine bubble of 1 / 100th of a millimeter to 1/1000th of a millimeter, that is, 50 .mu.m or less, and occurs when water and air are vigorously rotated. The microbubble rises to the surface at a very slow rate of 0.1 cm / sec. In addition, 'nano bubbles' refers to very small bubbles of less than 10 μm produced by using only water and air coming out through a specially manufactured micro bubble generator. At this time, the bubble refers to a bubble, that is, a gas pocket present in the liquid.

Such nano bubbles are currently used in many fields from hot spring bathing to cancer diagnosis in Japan. The development of micro bubble generation technology was developed in Japan in 1995 by Professor Daisai of Tokuyama Higher School of Advanced Technology. Professor Daisai has focused his attention on various aspects such as applying microbubbles to oyster farms affected by red tide in 1998 and accomplishing great achievements.

These nano bubbles have different characteristics from ordinary bubbles in the following three aspects.

First, ordinary bubbles with a size or diameter of several millimeters or more in the liquid float up on the surface of the liquid at the same time as they are produced. The reason that the bubble floats up is because the buoyancy of the bubble is larger than the resistance of the liquid. On the other hand, nano bubbles stay in the liquid for a long time. This is because the buoyant force of the nano bubble is so small that it can not overcome the resistance of the liquid.

Second, when the nano bubble stays in the liquid for a long time, the gas inside the nano bubble gradually dissolves into the liquid through the surface and gradually becomes smaller in size. Furthermore, when the gas in the nano bubble has a high solubility in the liquid, the bubble itself may completely dissolve and disappear.

Third, the smaller the bubble size, the larger the ratio of the surface area to the volume, so that the gas inside the nano bubble dissolves into the liquid and the efficiency becomes higher.

These three characteristics of the nano bubble enable various applications. In the case of water treatment, it is possible to shorten the treatment time by increasing the water quality by effectively injecting air into the water. In the case of sewage treatment, for example, Effective injection of strong gas into the sewage opens a way to effectively decompose and remove various odor substances dissolved in sewage.

BACKGROUND ART [0002] Conventionally, a technique related to a conventional micro-bubble generating apparatus has been proposed in many ways such as a method of collision through high-pressure injection, a method of passing through a fine mesh, and a method of generating fine bubbles through a rapidly expanding pipe of an orifice principle. Have a merit in generating fine bubbles through a very simple structure and method. However, since the size of the generated fine bubbles is large, it is easily floated due to buoyancy, and the problem is that the size of the particles is not constant .

For example, a conventional micro bubble generating method has a tubular portion in which a suction port and a discharge port are connected in a straight line, and the tubular portion has a wide suction port and narrows gradually to the narrowest middle portion and gradually widen again, Diameter pipe for supplying compressed air is connected to the intermediate portion of the suction port of the tubular portion so as to be flowable and further includes an air compressor for supplying compressed air and a pump for compressing and supplying water, The micro bubble is generated through the structure.

Such a conventional method of generating minute bubbles is advantageous in that the air bubbles in the water are compressed and then suddenly diffused, so that the air bubbles are split into very small sizes to generate fine bubbles. However, the size of the fine bubbles produced by this method is much smaller than the nano size, which is much more than a few micrometers, and the homogeneity of the large bubbles is as small as several millimeters.

Meanwhile, among other examples of the conventional micro bubble generating method, a method of generating minute bubbles using a high-speed rotary plate using a motor has been disclosed in Korean Patent Nos. KR 10-1125851, KR 10-1137050, and KR 10-1146040, However, this is merely a matter of generating fine bubbles. Even if the diameter of the bubble is small, it is more than several micrometers larger than the nano size, and the distribution is also large There is a problem that the efficiency of dissolving the gas in the liquid is low because the homogeneity is greatly reduced to the extent of several millimeters.

The micro bubble, micro bubble or nano bubble generation method as described above is also applied to a field for removing harmful algae. In this case, since the direction of injection of the fine bubble is sprayed into the water rather than the place where the algae are located, There is a problem that rapid action can not be performed, and when the water temperature is high, the oxygen saturation is low and thus the efficiency of removing harmful algae is lowered.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above, and a method of generating bubbles of very small particles of 10 탆 or less using a microbubble generator while outputting nano bubbles, And the nano bubbles are generated while the nano bubbles are generated by the single driving means. The one nano bubble generating unit causes the generated nano bubbles to be diffused and discharged in the nano bubble number at a low pressure in the vicinity of the generated nano bubbles. The present invention also provides a method for generating three-dimensional nano bubbles in which nano bubbles are ejected at a high pressure with a number of nano bubbles.

According to an aspect of the present invention, there is provided a method of generating nano bubbles in which nano bubbles are generated by introducing outside air (gas) and water (fluid) The first and second bubble generating units 110 and 120 coaxially and coaxially with the rotation axis L generate the thrust force while interlocking with each other, (Nano bubbles) generated by the first bubble generator 110 are generated by generating a nano bubble by causing pressure and velocity changes on the flow path and mixing the introduced external air (gas) and water (fluid) The impeller 112 constituting the first bubble generator 110 in the state where water (nano bubble number) is filled in the bubble generating space (in the space of the impeller 112 constituting the first bubble generator 110) ) Radially through the plurality of micropores 112b provided on the outer circumferential surface of the substrate And the water (nano bubble number) containing nano bubbles generated by the second bubble generator 120 is generated in the bubble generating space (the impeller 122 in the configuration of the second bubble generator 120 and the water (In the space of the housing 121), through the discharge pipe 123 provided in the outer peripheral surface of the housing 121 of the structure of the second bubble generator 120, the diameter of which is narrowed and narrowed, Dimensional nano bubble generation and a nano bubble number output are performed.

More specifically, the present invention relates to a method of generating a nano bubble number by generating outside air (gas) and water (fluid) by an aeration device to generate nano bubbles and outputting the nano bubbles as a number of nano bubbles, The control unit 180 sets the operation level including the operation of the first and second bubble generators 110 and 120 in the selective single mode or the dual mode and the speed and output pressure of each bubble generator, Setting step S110; When the operation start signal is input (S120), the control unit 180 determines a preset operation mode, calculates a control signal of the corresponding mode and speed, and outputs a corresponding operation control signal (S130 ); A water sucking step (S140) for causing the first and second bubble generating units (110, 120) to draw water by operating the driving means (M) according to an operation control signal outputted from the control unit (180); In the state where water is being sucked, the suction means F sucks the outside air according to the operation control signal, and the first and second bubble generators 110 and 120, (S150) for injecting the air in the vicinity of the impeller rotation axis of any one of the first and second impellers (110, 120); In the course of mixing the impregnated water and the outside air at high speed while mixing any one of the first and second bubble generators 110 and 120 or the first and second bubble generators 110 and 120, A nano bubble generating step (S160) of generating a nano bubble by a pressure and a speed change due to a width change of the nano bubble; The bubbles of the first bubble generator 110 and the first and second bubble generators 110 and 120 are generated by the thrust of any one of the first and second bubble generators 110 and 120 or the first and second bubble generators 110 and 120 Including a nano bubble in which the number of nano bubbles including nano bubbles is radiated and / or injected in a radial direction through either one of the fine holes 112a and 112b and the discharge pipe 123 or through one of the fine holes 112b and the discharge pipe 123, (S170). ≪ / RTI >

According to the present invention, the first bubble generator 110 and the second bubble generator 120 are provided on the same axis as the rotation axis of the driving means M, The first bubble generator 120 generates the nano bubbles in the radial direction directly from the main body of the nano bubble generator 100. The second bubble generator 120 induces the pressure change again on the discharge path of the nano bubble, The nano bubbles are generated at a relatively higher pressure than the bubble generator 110 at a remote distance, so that three-dimensional and two-dimensional nano bubbles are generated and discharged, thereby improving the usability and efficiency of the nano bubble.

As described above, the present invention in which the utilization and efficiency of nano bubbles are increased is described as an embodiment of the present invention in which noxious birds are spread, lakes, marshes, ponds, rivers, cooling towers, irrigation channels, farms, sewage treatment plants, The nano bubbles generated by the first bubble generator 110 can be radiated directly from the main body of the nano bubble generator 100 so that the nano bubbles can be radiated directly or indirectly to the harmful birds. The nano bubbles are allowed to act directly on the portion adjacent to the harmful alga and the nano bubbles act on the entire region where the harmful algae are diffused by releasing the nano bubbles from the long distance, The effect of increasing the removal efficiency is obtained.

In addition, the present invention uses the cooling unit 160 to lower the temperature of the gas and / or the fluid through heat exchange on the path through which the gas or the fluid is supplied or with the gas and the fluid, By lowering the temperature, the water temperature in the entire region where the nano bubbles are emitted is reduced, thereby increasing the oxygen saturation, thereby enhancing the removal efficiency of harmful algae.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a sequence block diagram illustrating methodical steps of the present invention.
FIG. 2 is a block diagram of a device structure for simplifying the process of the present invention. FIG.
FIG. 3 is a perspective view showing a configuration of a nano bubble generating device for progressing the present invention. FIG.
FIG. 4 is an exploded perspective view showing a configuration of a nano bubble generating device according to an embodiment of the present invention. FIG.
FIG. 5 is an exploded perspective view illustrating a configuration of a nano bubble generator according to an embodiment of the present invention. FIG.
6 is a cross-sectional view illustrating in detail a configuration of a nano bubble generating device for causing the present invention to proceed.
FIG. 7 is a state diagram illustrating the state and action of the present invention applied to a region (for example, a lake) where a harmful algae is diffused.
8 is a partial block diagram illustrating an example in which a cooling unit is applied to a nano bubble generator in which the present invention proceeds.
FIG. 9 is a partial cross-sectional view showing an example of a discharge means of the second bubble generator in the nano bubble generator according to the present invention. FIG.
10 is a cross-sectional view showing another example of a nano bubble generating device for causing the present invention to proceed.

The present invention will now be described with reference to the accompanying drawings.

First, as shown in FIGS. 1 and 2, the apparatus 100 for generating nano bubbles according to the present invention generates nano bubbles by introducing outside air (gas) and water (fluid) by an aeration device, The first and second bubble generating units 110 and 120 coaxially and coaxially with the rotation axis L of the driving means M cooperate to generate a thrust force (Gas) and water (fluid) in the flow path of the sucked outside air (gas) and water (fluid) in the middle, thereby generating nano bubbles by mixing and blowing out the introduced outside air The water (nano bubble number) containing nano bubbles generated in the bubble generator 110 is filled in the bubble generating space (in the space of the impeller 112 constituting the first bubble generator 110) The first bubble generator 110 is provided on the outer circumferential surface of the impeller 112, (Nano bubble number) generated by the second bubble generating unit 120 is generated in the bubble generating space (the second bubble generating unit 120 Of the structure of the second bubble generator 120 in the state of being filled with the impeller 122 and the housing 121 which houses the impeller 122 and the housing 121, And discharge water through the discharge pipe 123 to generate three-dimensional and two-dimensional nano bubbles and output nano bubbles.

More specifically, the present invention provides a method of generating nano bubbles that generates nano bubbles by introducing outside air (gas) and water (fluid) by an aeration device to output nano bubbles, The control unit 180 determines whether the first and second bubble generators 110 and 120 operate selectively in the single mode or the dual mode and the operation level including the speed and the output pressure of each bubble generator, (S110); When the operation start signal is input (S120), the control unit 180 determines a preset operation mode, calculates a control signal of the corresponding mode and speed, and outputs a corresponding operation control signal (S130 ); A water sucking step (S140) for causing the first and second bubble generating units (110, 120) to draw water by operating the driving means (M) according to an operation control signal outputted from the control unit (180); In the state where water is being sucked, the suction means F sucks the outside air according to the operation control signal, and the first and second bubble generators 110 and 120, (S150) for injecting the air in the vicinity of the impeller rotation axis of any one of the first and second impellers (110, 120); In the course of mixing the impregnated water and the outside air at high speed while mixing any one of the first and second bubble generators 110 and 120 or the first and second bubble generators 110 and 120, A nano bubble generating step (S160) of generating a nano bubble by a pressure and a speed change due to a width change of the nano bubble; The bubbles of the first bubble generator 110 and the first and second bubble generators 110 and 120 are generated by the thrust of any one of the first and second bubble generators 110 and 120 or the first and second bubble generators 110 and 120 Including a nano bubble in which the number of nano bubbles including nano bubbles is radiated and / or injected in a radial direction through either one of the fine holes 112a and 112b and the discharge pipe 123 or through one of the fine holes 112b and the discharge pipe 123, (S170). ≪ / RTI >

Here, the nano bubble generator 100 for driving the present invention can be constructed as shown in FIGS. 3 and 6, wherein the driving unit M is configured to rotate in a direction The driving unit M may be a motor connected to a power supply unit (a battery (rechargeable battery), a power supply circuit) provided in the housing 130, .

At this time, the motor serving as the driving means M may be rotated at 3600 rpm and accelerated 1.5 times through an accelerator (for example, an array of gear groups). (The amount and fineness of the nano bubbles may be superfine State)

In this case, the housing 130 may be waterproofed by airtightness means such as packing, and the operation panel and the liquid crystal display window of the controller may be exposed to the outside in a state of being waterproofed (waterproof film or blocking cap) .

Meanwhile, the first bubble generator 110 includes a protector 111 formed of an annular body fixed to a flange provided at one end (rotation axis direction) of the housing 130, and having a long hole in its outer diameter; And is fixed to an intermediate portion of the rotary shaft L in a state of being accommodated in the protection hole 111 to generate thrust through rotation to generate nano bubbles by splitting or blasting the inflow external air and water And an impeller 1 (112) for discharging the fluid.

The protector 111 is formed with flanges at both ends to provide a fixing part between the housing 130 and the second bubble generator 120. The protrusion 111 has a rectangular shape with a plurality of long slots ) May be provided.

In addition, the impeller 1 (112) comprises a rotating body 1 (112a) having a single open-end housing shape having micropores (112b) formed on its outer diameter and fixed to the rotating shaft (L); And a plurality of crescent-shaped blades 112c extending from a central portion of the rotating body 1 112a to which the rotation axis L is fixed to come in contact with the inner diameter.

At this time, the blade 112c may be a block body having a height increasing from the central portion of the rotating body 112a toward the inner diameter, and may be integrated with the inner surface of the housing through welding or bolt fixing.

The second bubble generator 120 is a double annulus which is fixed to one end of the protector 111 constituting the first bubble generator 110. The second bubble generator 120 includes a first bubble generator 110 A housing 121 provided with an inflow path through which the outside air (gas) and water (fluid) flow into the housing 110, and a space for accommodating the impeller 2 122 at the other end; And is fixed to the tip of a rotary shaft L passing through the center of one side of the housing 121 in a state of being housed in the housing 121 so as to generate thrust through rotation to divide the inflow air and water An impeller 2 122 for generating and discharging nano bubbles while mixing with explosion; One end of the housing 121 is fixed to the housing space of the impeller 2 122 and the other end of the housing 121 extends in the direction in which the driving means M is located to generate a path for releasing the nano- And a discharge tube 123 provided to the discharge tube 123.

The housing 121 is provided with a plurality of fluid inflow holes 121a for introducing outside air (gas) and water (fluid) to the first bubble generator 110 and an outer cylinder 121b provided with at least one gas inlet 121b. The outer edge portion of the bent portion is fixed to the flange of the protection hole 111. The other end of the outer diameter is bent in the center direction, So that the end portion of the inner cylinder can be bent again to the central portion so as not to contact with the rotation axis L. Further,

The impeller 2 122 includes a disk-shaped rotating body 122a having a shaft fixing protrusion 122b protruded to fix a rotation axis L to a central portion of one side surface thereof; And a plurality of crescent-shaped blades 122c extending from the central portion provided with the shaft fixing protrusions 122b to the inner diameter.

At this time, the rotating body 2 (122a) may be made concave toward the center portion, and the blade (122c) may be a block body formed to be inclined along a concave inclined surface.

In addition, the discharge pipe 123 may be connected to a multi-stage pipe body having a smaller diameter, and a pressure change may be applied to a nano bubble discharged from a portion where the multi-stage pipe body is connected.

In addition, a partition wall 141 formed with a through hole 141a at the center fixed to a rim of the enclosure 121 of the second bubble generator 120; And a plurality of fluid inflow holes 142a and at least one gas inflow port 142b for introducing outside air (gas) and water (fluid) to the second bubble generating portion 120 are formed in the dome portion And a front end finishing part 140 including a main body 142 on which an outer rim part is fixed to the partition wall body 141.

The supply of gas to the first and second bubble generators 110 and 120 may include a gas inlet pipe 151 connected to a suction end of the intake unit F for forcedly sucking outside air; A gas discharge pipe 1 152 extending in the direction of the impeller 1 112 in the first bubble generator 110 in a state connected to the exhaust end of the intake unit F; And a gas discharge pipe 2 153 extending in the direction of the impeller 2 122 in the second bubble generator 120 in a state connected to the exhaust end of the intake means F .

At this time, the suction means F may be an external air suction module provided with a fluid switching valve in a pump or an air force inhaler.

The present invention operates through a power supply of a power supply unit 190 that converts and supplies a commercial power supply to an operation power supply. The operation-related program is operated under control of a control unit 180 including a pre- .

Hereinafter, the operation of the present invention will be described.

The present invention relates to a method of generating nano bubbles in which nano bubbles are generated by introducing outside air (gas) and water (fluid) by an aeration device and outputting nano bubbles as a number of nano bubbles, The first and second bubble generators 110 and 120 that are independently provided on the first and second bubble generators 110 and 120 generate the thrust force while the pressure and the velocity (Nano bubble number) generated by the first bubble generating unit 110 and the water (fluid) containing the nano bubbles generated by the first bubble generating unit 110 are mixed to generate nano bubbles by splitting or blasting the introduced external air (gas) Of the impeller 112 constituting the first bubble generator 110 in the state of being filled in the bubble generating space (the space of the impeller 112 constituting the first bubble generator 110) Is radiated through the plurality of micropores 112b provided, and the second bubble generation (Nano bubble number) generated in the first bubble generating unit 120 is generated in the bubble generating space (in the space of the impeller 122 of the second bubble generator 120 and the housing 121 receiving the nano bubble) The second bubble generator 120 is injected into the second bubble generator 120 through the discharge tube 123 whose diameter is stepped on the outer circumferential surface of the hollow body 121 to narrow the diameter of the second hollow bubble generator 120. The three- And a nano bubble number output is performed.

More specifically, the method of generating nano bubbles according to the present invention is a method of generating nano bubbles by controlling whether the first and second bubble generators 110 and 120 are operated in a selective single mode or a dual mode through the input / An operation setting step (S110) of setting an operation level including a sub-speed and an output pressure, and storing the operation level in the controller (180); When the operation start signal is input (S120), the control unit 180 determines a preset operation mode, calculates a control signal of the corresponding mode and speed, and outputs a corresponding operation control signal (S130 ); A water sucking step (S140) for causing the first and second bubble generating units (110, 120) to draw water by operating the driving means (M) according to an operation control signal outputted from the control unit (180); The intake means F operates in accordance with the operation control signal in the state where water is sucked so that the first and second bubble generators 110 and 120 or the first and second bubble generators 110 and 110 (S150) for injecting the air sucked near the impeller rotation shaft (120); In the course of mixing the impregnated water and the outside air at high speed while mixing any one of the first and second bubble generators 110 and 120 or the first and second bubble generators 110 and 120, A nano bubble generating step (S160) of generating a nano bubble by a pressure and a speed change due to a width change of the nano bubble; The bubbles of the first bubble generator 110 and the first and second bubble generators 110 and 120 are generated by the thrust of any one of the first and second bubble generators 110 and 120 or the first and second bubble generators 110 and 120 Including a nano bubble in which the number of nano bubbles including nano bubbles is radiated and / or injected in a radial direction through either one of the fine holes 112a and 112b and the discharge pipe 123 or through one of the fine holes 112b and the discharge pipe 123, Step S170.

The method of generating the nano bubble number according to the present invention will now be described in more detail. When the main power switch of the input / output unit 170 is turned on, basic operation power is applied to the electrical components of the apparatus, In this state, the driving power source or operation signal is applied according to the control signal of the control unit 180 and operates.

In the operation setting step (S110), whether or not the first and second bubble generators 110 and 120 are operated in the selective single mode or the dual mode is determined through the input / output unit 170, Sets the operation level including the speed of the generator and the output pressure, and stores the operation level in the controller 180.

At this time, the selective single mode selects the operation mode so that the number of nano bubbles including the nano bubbles is generated in any one of the first bubble generator 110 and the second bubble generator 120. [ That is, when the first bubble generator 110 is selected, the control unit 180 controls the intake unit F provided with the fluid switching valve in the pump or the air force inhaler, So that the nano bubbles are generated. When the second bubble generating unit 120 is selected, the control unit 180 controls the pump or the air force inhaler such that the fluid switching valve is provided The intake unit F is controlled so that the outside air is supplied only to the second bubble generator 120 side so as to be jetted so that the nano bubbles are generated together with the water to be sucked. Of course, in the dual mode, the first and second bubble generators 110 and 120 simultaneously operate.

When the operation start signal is input in the state that the operation value is set in advance as described above (S120), the control unit 180 loads the operation mode and the speed previously set in the setting mode operation step (S130) And outputs an operation control signal.

At this time, the operation control signal corresponding to the operation mode and the speed set in advance is stored in advance in an output value (control signal) corresponding to an input value (a value set by the input / output unit) The comparator outputs the reference value and the input value which are set constantly and provides an output value corresponding to the result value.

When the control unit 180 outputs the operation control signal, the first and second bubble generators 110 and 120 draw water by operating the driving unit M in the water suction step S140, The air intake means F operates in accordance with the operation control signal and the first and second bubble generating units 110 and 120 Or both of the first and second bubble generators 110 and 120. In addition,

In the nano bubble generating step S160, any one of the first and second bubble generators 110 and 120, or the first and second bubble generators 110 and 120, The nano bubbles are generated by the pressure and the speed change due to the change in the width of the flow path in the process of mixing the air while rotating at a high speed.

Finally, in the nano bubble number output step S170, by the thrust of any one of the first and second bubble generators 110 and 120 or the first and second bubble generators 110 and 120 The number of nano bubbles including the nano bubbles may be radiated and / or radiated through either the micro hole 112b and the discharge tube 123 of the first bubble generator 110 or the micro bore 112b and the discharge tube 123, Or direct injection.

The method for generating the nano bubble number according to the present invention will now be described in more detail. The method of generating the nano bubble number according to the present invention will be described in more detail. (112) and (122) rotate, and power is also applied to the intake means (F) to suck the outside air.

The outside air forcedly sucked by the suction means F flows into the impeller 1 112 side of the first bubble generator 110 through the gas discharge pipe 1 152 and flows into the gas discharge pipe 2 (122) of the second bubble generator (120) through the first bubble generator (153).

At this time, the gas discharge pipe 1 (152) passes through a through hole (one end side of the outer tube of the housing 121 is bent and extends so as not to contact with the rotation axis L) Since the impeller 1 112 is located close to the front of the nut portion fixed to the rotation axis L, in a process of being discharged while being accelerated in a narrow gap between the tip portion of the gas discharge pipe 1 152 and the nut in the process of discharging the gas It produces pressure and velocity changes and at the same time cleaves or explodes and mixes with the fluid to create a fine bubble.

The gas discharge pipe 2 153 is provided with a gas inlet 142b (for example, a fixing nipple) fixed to the through hole of the carbody 142 constituting the tip end closing part 140 and a through hole (Not shown in the drawings) of the gas discharge pipe 2 (153) in the process of discharging the gas through the through hole (141a, 141a, the through hole not in contact with the rotation axis L) and located close to the tip end portion of the shaft fixing projection 122b of the impeller 2 It accelerates in a narrow gap between the tip end and the shaft fixing protrusion 122b, and causes a pressure and a velocity change in the process of discharging, and at the same time, splits or explodes and mixes with the fluid to generate a fine bubble.

The fine bubbles are micro bubbles having a size of 1/100 to 1/1000 mm, that is, bubbles of 50 μm or less.

At the same time, since the impeller 1 112 of the first bubble generator 110 rotates, the fluid, that is, the water of the lake, is sucked into the fluid inflow hole 121a of the housing 121 and flows between the outer cylinder and the inner cylinder Through which the outer cylinder body is folded and extended so as not to contact with the rotation axis L, is accelerated and mixed with the gas in the process of passing through the narrow aperture.

At the same time, the impeller 2 122 of the second bubble generator 120 rotates, so that fluid, that is, water in the lake is sucked into the fluid inlet hole 142a of the drum 142, Through the narrow through hole 141a while being accelerated and mixed with the gas.

As described above, the fine bubbles generated in the first bubble generator 110 are mixed with the fluid by the thrust of the impeller 1 112, and the fine bubbles generated in the first bubble generator 110, Bubbles are generated while being repeatedly subjected to pressure and speed changes while being split or exploded, and are discharged to the vicinity of the main body of the nano bubble generator 100.

As described above, in the process of mixing the fine bubbles generated by the second bubble generator 120 with the fluid by the thrust of the impeller 2 122, the fine bubbles are discharged from the discharge tube 123 Bubbles are generated while being cleaved or exploded while being repeatedly caused to undergo pressure and velocity changes repeatedly, and are strongly discharged to the rear of the nano bubble generating device 100.

The nano bubbles are ultrafine bubbles that can not be confirmed by eyes of 5 占 퐉 (micrometer, or micron, 1 占 퐉 = 0.001 mm) or less.

In other words, in the first and second bubble generators 110 and 120 of the nano bubble generator 100 of the present invention, air and water introduced due to the rotation of the ampere and the pressure of the discharge path, By forming a vortex in the water containing air, a large specific gravity is pushed outward by the centrifugal force and the air with a small specific gravity is pushed to the inner side to move.

As the water and the air move in this way, water collides with the fine particles while colliding with the water. In this crushing process, a pressure drop (negative pressure) region is generated, and air collides with the inflow of such air, Thereby maximizing the dissolution rate.

As shown in FIG. 7, the present invention can be applied to a lake, a marsh, a pond, a river where the harmful bird is spread, a marine (coastal, Etc.), a cooling tower, an irrigation waterway, a farm, a sewage treatment plant, a drinking water reservoir, a swimming pool, and the like.

When the above-described action is applied in this state, it is possible to improve the water quality of the lake by increasing the amount of dissolved oxygen in the lake itself, thereby proliferating (activating) aerobic bacteria (bacteria that cause self-purification).

The nano bubble generator 100 may further include a coil for electrically applying power to the interior of the first and second bubble generators 110 and 120 of the nano bubble generator 100 It is also preferable that water is passed through the nano bubble generator 100 as the power is applied to the nano bubble generator 100 so as to allow the water to pass through the magnetic field.

In the above, the term "having activity" means that hydroxyl ion (OH-) is generated in water to have anionic surface-active property, thereby facilitating sterilization due to an electric field effect with a surfactant and promoting bonding with harmful metal ions, Thereby improving the purification efficiency of the sediments.

8, the present invention may further include a cooling unit 160 for cooling the outside air (gas) through heat exchange on a gas supply unit 150, for example, a gas inflow pipe 151 have.

The cooling unit 160 may be a refrigerant circulation type cooling water single unit including a compressor in which a refrigerant circulates in an outer tube, and a gas inlet pipe 151 is provided in a zigzag manner and a Peltier device is stacked on both sides thereof. Of cooling water.

In this case, the temperature of the outside air to be sucked is lowered and the first and second bubble generating units 110 and 120 increase the degree of oxygen saturation during mixing with the fluid, By lowering the temperature of the bubble, the surrounding water temperature can be lowered, thereby suppressing the spread of the harmful algae (not propagating at lower temperatures).

9 (a) and 9 (b), the discharge tube 123 has a plurality of tubular bodies 123 'and 123' 'having different diameters, which are multistage-coupled in a slidable state , And the elastic body (S) may be inserted between the engagement ends.

The driving force of the driving means M is increased to increase the discharge or discharge intensity of the nano bubbles, so that the tip of the small tubular body 123 " inserted into one end of the tubular body 123 ' When the pressure is applied, the elastic body S located between one end of the large-diameter tube 123 'is contracted and the tube 123 "having a small diameter is drawn out and the length is extended, so that the nano- .

10, in the state where the second bubble generator 120 is excluded, a partition wall 141, which is a front end finishing portion 140, is provided at a tip end of the protection hole 111, The group 142 and the gas discharge pipe 2 153 may be combined.

In this case, it is possible to provide a low-cost device with a reduced size and efficiency of the nano bubble generator 100, so that the consumer can select the product as needed.

The first bubble generator 110 and the second bubble generator 120 are independently provided on the same axis as the rotation axis of the driving means M and the first bubble generator 110 The generated bubbles are radiated directly from the main body of the nano bubble generator 100. The second bubble generator 120 induces a pressure change again on the discharge path of the nano bubble to generate the first bubble generator 110 ), Thereby generating and releasing three-dimensional and two-dimensional nano bubbles, thereby increasing the usability and efficiency of the nano bubble.

As described above, the present invention in which the utilization and efficiency of nano bubbles are increased is described as an embodiment of the present invention in which noxious birds are spread, lakes, marshes, ponds, rivers, cooling towers, irrigation channels, farms, sewage treatment plants, The nano bubbles generated by the first bubble generator 110 can be radiated directly from the main body of the nano bubble generator 100 so that the nano bubbles can be radiated directly or indirectly to the harmful birds. The nano bubbles are allowed to act directly on the portion adjacent to the harmful alga and the nano bubbles act on the entire region where the harmful algae are diffused by releasing the nano bubbles from the long distance, Thereby increasing the efficiency of removal.

In addition, the present invention uses the cooling unit 160 to lower the temperature of the gas and / or the fluid through heat exchange on the path through which the gas or the fluid is supplied or with the gas and the fluid, By lowering the temperature, the temperature of the entire nano bubble emission region is reduced to increase oxygen saturation, thereby increasing the removal efficiency of harmful algae.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

In addition, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims.

Accordingly, all such appropriate modifications and changes, and equivalents thereof, should be regarded as within the scope of the present invention.

100: nano bubble generator 110, 120: first and second bubble generator
112, 122: impeller 1,2, 130: housing
150: gas supply unit 160: cooling unit
M: drive means F: intake means

Claims (4)

The first and second bubble generating units 110 and 120 coaxially and coaxially with the rotation axis L of the driving means M generate the thrust force respectively while interlocking with each other, The nano bubbles generated by the first bubble generator 110 are radiated in a radial direction, and the nano bubbles generated by the first bubble generator 110 are radiated in the radial direction, The number of nano bubbles including the nano bubbles generated by the 2 bubble generator 120 is directly injected to generate three-dimensional and two-dimensional nano bubbles and output of nano bubbles.
An operation level including the operation of the first and second bubble generators 110 and 120 in the selective single mode or the dual mode and the speed of each bubble generator and the output pressure are set through the input / , An operation setting step (S110) of storing in the control unit (180); When the operation start signal is input (S120), the control unit 180 determines a preset operation mode, calculates a control signal of the corresponding mode and speed, and outputs a corresponding operation control signal (S130 ); A water sucking step (S140) for causing the first and second bubble generating units (110, 120) to draw water by operating the driving means (M) according to an operation control signal outputted from the control unit (180); In the state where water is being sucked, the suction means F sucks the outside air according to the operation control signal, and the first and second bubble generators 110 and 120, (S150) for injecting the air in the vicinity of the impeller rotation axis of any one of the first and second impellers (110, 120); In the course of mixing the impregnated water and the outside air at high speed while mixing any one of the first and second bubble generators 110 and 120 or the first and second bubble generators 110 and 120, A nano bubble generating step (S160) of generating a nano bubble by a pressure and a speed change due to a width change of the nano bubble; The number of nano bubbles including the nano bubbles may be controlled by the thrust of any one of the first and second bubble generators 110 and 120 or the first and second bubble generators 110 and 120, Or a nano bubble number output step (S170) including a nanobubble in which radial discharge or direct injection is performed.
The method according to claim 1 or 2,
The number of nano bubbles including the nano bubbles generated by the first bubble generator 110 may be radially formed through the fine holes 112b radially provided on the outer circumferential surface of the impeller 112a constituting the first bubble generator 110, And the number of nano bubbles including nano bubbles generated by the second bubble generator 120 is set to be smaller than the diameter of the outer circumferential surface of the housing 121 that receives the impeller 122 in the structure of the second bubble generator 120 And the water is directly sprayed through a discharge pipe (123) provided so as to be narrowed in a stepped manner.
The method according to claim 1 or 2,
Wherein the sucked outdoor air is cooled by a cooling unit (160) which circulates the refrigerant to the outer tube and flows into the first and second bubble generating units (110, 120) Way.

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