KR20200007328A - Nano bubble generator - Google Patents

Abstract

The present invention relates to a nano-bubble generating apparatus, which maximizes use efficiency by supplying air during pumping of water and forming air mixed with water as nanobubble. The nano-bubble generating apparatus of the present invention comprises: a housing having a cylindrical rotor chamber having an inlet through which water is introduced and an outlet through which a fluid is discharged; and a disk assembly having a pair of first and second disks connected to be rotatable in a longitudinal direction of a central shaft provided to be rotatable in the rotor chamber and disposed to have a gap therebetween to pump water during rotation. The housing includes: a first case having an inlet at a front surface thereof, a passage hole through which water moves at one side of a rear surface of an outer circumference thereof, and a first chamber having the disk assembly rotatably disposed in a space between the inlet and the passage hole; and a second case coupled to a rear surface of the first case and having a supply hole spatially connected to the passage hole in a front surface thereof, the outlet formed in a side portion, and a second chamber having another disk assembly to be rotatably disposed in a space between the supply hole and the outlet. In the second case, mixed water is formed between the passage hole and the supply hole by receiving air from the outside to supply air to water moved to the supply hole from the passage hole.

Description

Nano bubble generator

The present invention relates to a nanobubble generating device which is configured to supply air while pumping water and nanobubble the air mixed with water, thereby maximizing use efficiency.

Generally, nano bubbles are microscopic bubbles that cannot be seen with eyes, and are 1 / 2,000 size of ordinary bubbles, fine air particles having a skin pore size of 25 μm or less, and when extinguished, 1) 40KHz ultrasonic wave generation, 2) It generates high sound pressure of 140db, and 3) instantaneous high heat of 4,000 ~ 6,000 degrees.

In other words, general bubbles rise in water and rupture at the surface, but nano-bubbles shrink under pressure in water and generate and dissipate various energy.

And such nano-bubbles occur mainly when the water and air are violently rotated by the ultra-fine bubbles.

Such nano-bubbles are utilized in various areas due to physical and chemical properties such as "gas dissolution effect, self-pressing effect, and charging effect", and in recent years, they are used in various aquaculture and hydroponics in the fishing and agricultural fields. It is used for precision diagnosis in the medical field, and is used for physical therapy, high purity water treatment, and environmental devices in various fields.

In other words, it is widely used in hot spring baths for cancer diagnosis, regenerating skin, and is known for its sterilizing effect.

Such nano-bubbles are produced in a variety of ways, such as swirling liquid suspension, state mixer, injector, banchuri, pressure dissolution, ultrasonic, electrolysis, microporous filter.

In order to generate nanobubbles through the various types of nanobubble generators such as these, nanobubbles are generated by converting a gas into a micro bubble by receiving a liquid (feed water) mixed with a gas.

In the above process, the supply water is converted into micro bubbles through a process in which the feed water containing bubbles is separated and compressed while passing through the micro pipeline of the generating means having the micro pipeline.

As one of the nanobubble generating device for generating nanobubbles as described above, there is a Korean Patent Registration No. 10-1146040 (name: nanobubble generating device), the nanobubble generating device, as described in the publication, A bubble generating chamber having a water inlet for inflowing water, an air inlet for inflowing air, and an outlet for discharging air; And a rotating disk provided with a plurality of induction holes for introducing water introduced through the air inlet, and are provided to be in close contact with the moving direction of water and air of the rotating disk, and branching the water and air induced through the induction hole to the outside direction. And a plurality of stirring pieces protruding in the direction of the rotating disk to agitate water and air according to the rotation of the rotating disk. It consists of a disc information.

Accordingly, since water and air are agitated while being rubbed with the stirring pieces, as well as being rubbed while passing through the jig jacks between the stirring pieces, the water and air are crushed while being strongly stirred and simultaneously compressed.

The microbubble generating device of the impact type not only requires a high pressure of 5 to 20 bar, but also has a disadvantage in that the structure and equipment of the apparatus are complicated by a large flow loss and a large number of nozzles and a bulky mixing tank. .

On the other hand, the microbubble generating device of the swinging liquid flow method, as in the impact nozzle method, generates nanobubbles through the conveying pressure introduced in the process of transporting the mixed water mixed with water and air through the space in a vortex form In this case, the nanobubbles are generated by the vortex pressure generated while the vortex pipe is formed and the mixed water is transported while forming the vortex.

In recent years, a nanobubble generator for living water has been proposed to increase the use efficiency by generating nanobubbles in tap water supplied to household water such as washing, washing, and bathing by attaching and detaching a faucet in a general home.

In Korea Patent Registration No. 10-2012-7033796 (name: bubble generator), as described in the publication, it is opened between the pressure liquid supply member and the discharge member for discharging the liquid supplied from the pressure fluid supply member, A bubble generator for generating microfoams in the liquid discharged from the discharge member, comprising: an upstream main body provided with a first flow path that retracts toward a downstream side; and a classification housed in the first flow path to form a plurality of liquid passage holes And a downstream body having a top and a second flow path attached to the upstream body and extending toward the downstream side, the downstream end of the first flow path being opposed to the upstream end of the second flow path. At least one surface roughness (Ra) of the contact surface of the upstream body which is in contact with each other or the contact surface of the downstream body is set to 0.2 to 6.3, and the minute contact between these contact surfaces is minute. There is a bubble generator is described to introduce the outside air into the inside from.

Korean Patent Registration No. 10-1146040 Korean Patent Application No. 10-2012-7033796

However, the conventional nanobubble generators as described above, respectively, should be provided with a means for miniaturizing the mixed water mixed with water and air and a pump means for pumping the mixed water to the means for nanobubbling. Accordingly, there is a problem in that the structure is complicated and the sharing area must be large, resulting in a poor use efficiency.

The present invention has been proposed to solve the above-mentioned conventional problems, and an object of the present invention is to supply air while pumping water and to nanobubble the air mixed with water to provide the use. It is to provide a nanobubble generating device to maximize the efficiency.

Nanobubble generating device according to the present invention for achieving the object of the present invention as described above, the housing having a cylindrical rotor chamber having an inlet for the water flows in and an outlet for the fluid discharge; Disk assembly having a pair of first and second disks having a pair of opposing surfaces that are connected to rotate in the longitudinal direction of the central axis provided to be rotatable in the chamber, each having a gap therebetween and opposing surfaces for pumping water during rotation. Including; The housing may include a first chamber having an inlet on a front surface thereof, a flow path hole through which water moves on one side of an outer circumferential side, and a disk assembly rotatably disposed in a space between the inlet hole and the flow path hole. A branch having a first case; It is coupled to be connected to the rear of the first case, the supply hole is formed on the front surface and the space is connected to the space, the outlet is formed on the side, the disc assembly in the space between the supply hole and the outlet A second case having a second chamber rotatably disposed; Between the flow path hole and the supply hole in the second case, it is characterized in that the air is supplied from the outside to supply air to the water moved from the flow path hole to the supply hole to form a mixed water.

In the nanobubble generating device according to the present invention, water is introduced into the inlet by the vacuum pump pressure caused by the rotation of the disk assemblies in the first chamber and the second chamber, and is pumped to the outlet. As the outside air is supplied between the supply holes, and the hop-mixed water mixed with water and air is supplied to the second chamber, nanobubbles are generated as the nano-bubble is finely nanoscaled by the shear force and the collision load with the disk assembly inside the second chamber. Accordingly, the generation efficiency of the nanobubble is maximized, as well as the supply of the nanobubble water is increased through the increased pump pressure, has the effect of maximizing the use efficiency.

1 is a schematic illustration showing a nanobubble generating device according to an embodiment of the present invention.
Figure 2 is an enlarged schematic cross-sectional schematic view showing a part of the nanobubble generating device according to the present embodiment enlarged.
Figure 3 is an enlarged schematic cross-sectional schematic view showing a partial enlarged view showing the air injection means constituting the nanobubble generating device according to the present embodiment.
Figure 4 is an enlarged schematic cross-sectional schematic view showing a portion of the use of the nanobubble generating device according to the present embodiment

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

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

1 to 4 is a view showing a nanobubble generating device according to an embodiment according to the present invention, the nanobubble generating device 1 according to the present embodiment, the inlet (IH) in which water is introduced into the interior (IH) And a housing (2) having a cylindrical rotor chamber having an outlet (OH) through which water is discharged, and connected to rotate in the longitudinal direction of the central axis (3) provided to be rotatable in the chamber and having a space therebetween. And a disk assembly (4) having a pair of disks each having an opposing surface disposed thereon to pump fluid upon rotation.

That is, when the disk assembly 4 is rotated in the chamber when the central shaft 3 receives the power of the motor 5, the inside of the chamber forms a vacuum state.

Thus, after water is introduced through the inlet IH, it is pumped out through the outlet OH.

The inlet IH is preferably provided at one end of the chamber and is disposed in the longitudinal direction of the central axis 3; The outlet OH is most preferably disposed on an area of the chamber outer wall which extends across the disks.

That is, after water flows in the longitudinal direction of the central axis 3, it is pumped toward the outer circumferential side of the chamber.

In the nanobubble generating device 1 according to the present embodiment, the disks disposed on the inlet IH side of the disks are disposed in a direction in which water is applied, and the other disks are separated from the inflow direction. It has an opening aligned with the inflow direction of the water to flow to the space between.

The disks are then connected to each other via a plurality of connectors spaced apart while being closely adjacent to the central axis 3 and having a space therebetween.

In the nanobubble generating device 1 according to the present embodiment, the plurality of rising vanes V protruding outwardly are disposed on the opposite surfaces of the disks with an angle between the centers. To be possible; The height of the rising vanes (V) is formed lower than the gap between the disks.

The rising vanes (V) are provided in the form of radially extending on each surface extending from the outer periphery of the disk toward its center.

In the nanobubble generating device 1 according to the present embodiment as described above, the housing 2, the inlet (IH) is provided on the front, the flow path hole 11 to move the water on one side of the outer peripheral side A first case (10) having a first chamber (12) rotatably disposed in the space between the inlet (IH) and the flow path hole (11); It is coupled to be connected to the rear of the first case 10, the supply hole 21 is spatially connected to the flow path hole 11 is formed on the front side, the outlet (OH) is formed on the side, And a second case 20 having a second chamber 22 in which another disk assembly 4 is rotatably disposed in a space between the supply hole 21 and the outlet OH.

The first chamber (12) and the second chamber (22) are arranged to be arranged in the longitudinal direction of the central axis (3), respectively; The disc assemblies 4 respectively accommodated in the first chamber 12 and the second chamber 22 are respectively fixed to the central axis 3 so as to be rotatable in the same direction.

Accordingly, when the central axis 3 rotates as the motor 5 is driven, the disc assemblies 4 rotate in the first chamber 12 and the second chamber 22, respectively, and the upwards. The water flowing through the inlet IH is pumped to the outlet OH by the shear force generated by the vanes V and the frictional or viscous traction force.

In this case, as the disk assemblies 4 continuously pump water while forming a vacuum pump pressure, the disk assembly 4 pumps to the outlet OH through an increased pump pressure with respect to the water flowing into the inlet IH. do.

On the other hand, in the surface facing each other in the first case 10 and the second case 20, it is preferable that the flange portion extending in the outward direction is formed to be coupled by screwing the flanges.

And, in the second case 20, it is preferable that an induction space 23 is formed to guide the water flowing through the flow path hole 11 into the supply hole 21; Water is led through the induction space 23 to be introduced from the front of the disk assembly 4, so that the pumping of the water is made smoothly.

In the nanobubble generating device 1 according to the present embodiment as described above, the first case 10 and the second case 20, bearings are axially coupled so that the central shaft 3 is idling each, It is preferable.

That is, the water is prevented from moving while guiding the central shaft 3 by the bearings to prevent the pump pressure from being lowered.

The nanobubble generating device 1 according to the present embodiment, which is configured as described above, receives air from the outside between the flow path hole 11 and the supply hole 21 in the second case 20. Air is supplied to the water moved from the flow path hole 11 to the supply hole 21 to form mixed water.

That is, the second case 20 is provided with air injection means 6 to supply external air to the induction space 23, and the second chamber 22 in the first chamber 12. Air is mixed with the water to be pumped to the second chamber 22, and mixed water is supplied to the second chamber 22.

In addition, as the mixed water is applied to the impact load and the transfer pressure by the disks and the rising vanes (V) of the disk assembly 4 that rotates inside the second chamber 22, the contained air is made fine It generates bubbles.

In addition, the supply of nanobubble water is made smooth through the increased pump pressure by the disk assemblies 4 rotating inside the first chamber 12 and the second chamber 22. Is maximized.

In the nanobubble generating device 1 according to the present embodiment, the induction space is formed on the rear surface of the first housing 10 and the front surface of the second housing 20 forming the induction space 23. A plurality of impingement plates 7 protruding in the (23) side direction so that the mixed water moves in the jig jack direction are provided with a gap therebetween.

That is, in the case of the induction space 23, while the mixed water moves to the second chamber 22, the surface collides with the surfaces of the collision plates 7 and at the same time, a shear pressure is applied to the outside to facilitate nanobubbling. .

Therefore, structural simplification and miniaturization are made, as well as the generation efficiency of the nanobubbles is improved.

In the air injection means 6, the 'pipe (pipe)' injection pipe connected to the injection hole 71 formed in the second housing 20 so as to communicate with the induction space 23 and the outside A binding cap (73) formed at the outer end of the injection tube (72) and having a through hole for spatially connecting the outside and the inside of the injection tube (72), the injection tube (72) and the The one-way check valve 74 is fixed while being disposed between the binding caps 73 and injects air applied from the outside into the induction space 23 and restricts the discharge from the induction space 23 to the outside. It is preferable to comprise.

That is, the outside air is supplied to the induction space 23 through the one-way check valve 74, and the water in the induction space 23 is prevented from being drained to the outside.

On the other hand, in the induction space 23, the vacuum pressure is formed in accordance with the suction force by the pump pressure generated by the rotation of the disk assembly 4 in the second chamber 22, the air flows in stably from the outside This forms mixed water.

One embodiment of the present invention described above is merely exemplary, and those skilled in the art will appreciate that various modifications and equivalent other embodiments are possible therefrom. . Therefore, it will be understood that the present invention is not limited to the forms mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents and substitutions within the spirit and scope of the invention as defined by the appended claims.

1: Nano bubble generator 2: Housing
10: first case 11: euro ball
12: first chamber 20: second case
21: supply hole 22: the second chamber
23: guide space 3: the central axis
4 disc assembly 5 motor
6: air injection means 61: injection hole
62: injection tube 63: cap
64: one-way check valve 7: collision plate
IH: Inlet OH: Outlet
V: rising vane

Claims (1)

A housing having a cylindrical rotor chamber having an inlet through which water is introduced and an outlet through which the fluid is discharged; Disk assembly having a pair of first and second disks having a pair of opposing surfaces that are connected to rotate in the longitudinal direction of the central axis provided to be rotatable in the chamber and are spaced apart from each other and pump water during rotation. Including;
The housing is
A first case having a first chamber having an inlet at a front surface thereof, a flow passage hole through which water moves on one side of an outer circumferential side, and a first chamber rotatably disposed at a space between the inlet hole and the passage hole; Wow; It is coupled to be connected to the rear of the first case, the supply hole is formed in the front surface and the space is connected to the flow path, the outlet is formed on the side, the disc assembly in the space between the supply hole and the outlet A second case having a second chamber rotatably disposed;
Between the flow path hole and the supply hole in the second case,
Nanobubble generating device characterized in that to form a mixed water by supplying air to the water moved from the flow path to the supply hole by receiving air from the outside.

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