KR101787834B1

KR101787834B1 - A generating micro bubble

Info

Publication number: KR101787834B1
Application number: KR1020150150583A
Authority: KR
Inventors: 지현숙
Original assignee: 주식회사 일성; 지현숙
Priority date: 2015-10-28
Filing date: 2015-10-28
Publication date: 2017-11-15
Also published as: KR20170049322A

Abstract

The present invention relates to a method and apparatus for generating a large amount of ultrafine air bubbles by a shearing force caused by collision with a dissolved air flotation (DAF) during passage of mixed water in a state where air and water are mixed through a bubble generating tank. A bubble generating unit connected to the inlet pipe and having a space in which microbubbles are generated to generate microbubbles by receiving the mixed water; And a discharge pipe for discharging mixed water containing microbubbles generated in the bubble generating means to the outside, the microbubble generator comprising: The bubble generating means includes a bubble generating space connected to the inflow pipe and the discharge pipe and having a bubble generating space therein for generating microbubbles after receiving the mixed water and discharging the microbubbles to the outside; A plurality of collision members disposed in the bubble generation space where the mixed water introduced from the inflow pipe is discharged to the discharge pipe and disposed so as to collide with each other while the mixed water is moving; The impingement members are formed of a plate shaped plate having a plurality of through holes through which the inflow pipe is arranged to pass and a plurality of divided spaces through which the mixed water is divided and passed through while the mixed water moves while colliding with each other A micro bubble generating device comprising an impact plate is provided.

Description

[0001] The present invention relates to a micro bubble generator,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a micro bubble generating device for generating micro bubbles which are micro-bubbles having a micro-unit diameter, and more particularly, Micro bubbles can be generated by a shear force due to collision with a floating air flotation (DAF), thereby making it possible to economically generate micro bubbles and to improve microbubble generation efficiency through structural simplification and miniaturization &Lt; / RTI >

In general, micro bubbles are ultrafine bubbles which can not be confirmed by eyes of 5 μm (micrometer, or micron, 1 μm = 0.001 mm) or less. The size of the micro bubbles is 1 / 2,000 of that of normal bubbles. 1) 40KHz ultrasonic waves are generated, 2) a high sound pressure of 140db is generated, and 3) an instantaneous high temperature of 4,000-6,000 degrees is generated.

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

Such microbubbles are mainly generated when water and air are vigorously rotated by ultra-fine bubbles.

Such microbubbles are utilized in various fields by physical and chemical properties such as gas dissolution effect, self-pressurization effect, and charging effect, and they are used for various cultures and hydroponics in fisheries and agriculture, 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 micro bubbles may be 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 microbubbles through the various types of microbubble generators, microbubbles are generated by converting a gas into a microcavity 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, there is Korean Patent Registration No. 10-1146040 (name: micro bubble generator) as one of micro-bubble generator devices for generating micro bubble. As described in the publication A bubble generating chamber provided with a water inlet for water inflow and an air inlet for discharging air and a discharge port for discharging air; a water supply port provided between the water inlet and the air inlet and the discharge port of the bubble generation chamber, A rotary disk provided with a plurality of induction holes through which water introduced through an inlet and an air inlet is guided; and a water supply device for supplying water and air introduced through the induction hole in an outer direction And a plurality of water droplets which are protruded in the direction of the rotating disk so as to stir water and air in accordance with the rotation of the rotating disk Banpyeon consists of a fixed disk having that.

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.

On the other hand, there is DF (Dissolved Air Flotation) (DAF) as a method for generating micro bubbles, and the dissolved air flotation (DAF) is a method of sufficiently dissolving air in water at a high pressure, The water which has been decompressed again in the water is formed into fine bubbles as much as the supersaturated air and binds to the floc in the treated water. The bubble-floc conjugate quickly rises to the water surface and the solid- Water treatment technique.

Here, floc refers to a suspension or solid suspension in which solid fine particles are dispersed, and solid fine particles aggregate with each other to form a larger aggregate.

Korean Patent Registration No. 10-0845785 (titled "micro-bubble generator and micro-bubble generator") describes a micro-bubble generator in which a dissolved air flotation method is applied. As described in the publication, A pump to mix; And a mixing chamber for passing a mixture of the gas and the liquid fed from the pump and for mixing the gas and the liquid and generating a predetermined internal pressure and a flow velocity inside the mixing chamber, Wherein the inlet pipe is connected to the inlet of the mixing chamber and extends to the bottom of the inner chamber, and the inlet chamber of the mixing chamber is connected to the inlet chamber of the mixing chamber, An outlet pipe connected to the outlet of the outer chamber extends along the spaced space between the inner chamber and the outer chamber to the vicinity of the bottom of the outer chamber.

1. Korean Patent Registration No. 10-1146040 2. Korean Patent Registration No. 10-0845785

However, the conventional micro bubble generating devices as described above have a problem in that the structure is complicated and productivity is low, which is uneconomical.

In addition, there is a problem that miniaturization is difficult and its use is limited.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, DAF) and a shear force due to collision, thereby enabling a micro bubble generator to be economically improved in terms of structural simplification and miniaturization, and capable of improving the generation efficiency of micro bubbles.

According to another aspect of the present invention, there is provided a micro bubble generator comprising: an inlet pipe for introducing mixed water of water and air through an external pump; There is provided a micro bubble generator comprising a bubble generating means having a space in which a micro bubble is generated so as to generate micro bubbles and a discharge tube for discharging mixed water containing micro bubbles generated in the bubble generating means to the outside ; The bubble generating means includes a bubble generating space connected to the inflow pipe and the discharge pipe and having a bubble generating space therein for generating microbubbles after receiving the mixed water and discharging the microbubbles to the outside; A plurality of collision members disposed in the bubble generation space where the mixed water introduced from the inflow pipe is discharged to the discharge pipe and disposed so as to collide with each other while the mixed water is moving; An outlet through which the mixed water is discharged from the inflow pipe extends from the inside of the generation tank to the vicinity of the bottom so that the mixed water discharged through the outlet collides with the bottom surface of the generation tank, To be discharged; The impingement members are formed of a plate shaped plate having a plurality of through holes through which the inflow pipe is arranged to pass and a plurality of divided spaces through which the mixed water is divided and passed through while the mixed water moves while colliding with each other And an impact plate.

The above-mentioned impingement plate is characterized in that the branching space is formed through an interval between the incision pieces formed by being cut in the inner direction from the outer circumferential surface.

The microbubble generator of the present invention as described above is characterized in that the supersaturated air inside the inflow pipe is depressurized in the inside of the generation tank and is passed through a large amount of ultrafine particles by means of a dissolved air flotation (DAF) Bubbles are produced, and the efficiency of generating micro bubbles is improved through collision with the impingement plate. Thus, the present invention has the effect of being economically provided through structural simplification and miniaturization.

1 is a schematic view showing a micro bubble generator according to an embodiment of the present invention,
FIG. 2 is a schematic plan view showing an example of a generation tank applied to the microbubble generator according to the present embodiment,
3 is a schematic view showing a collision member applied to the microbubble generator according to the present embodiment,
Fig. 4 is a schematic view showing the use state of the microbubble generator according to the embodiment. Fig.

Hereinafter, a micro 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 to 4 are diagrams showing a micro bubble generator according to an embodiment of the present invention. In the micro bubble generator 1 according to the present embodiment, water and air A bubble generating means 4 connected to the inflow pipe 3 and having a space for generating micro bubbles therein to generate a micro bubble by receiving the mixed water, , And a discharge pipe (5) for discharging mixed water containing micro bubbles generated in the bubble generating means (4) to the outside.

That is, the bubble generating means 4 reduces the mixed water supplied through the inflow pipe to generate a large amount of ultrafine air bubbles by the above-described dissolved air flotation (DAF) do.

In the micro bubble generator 1 according to the present embodiment, the bubble generator 4 is connected to the inlet pipe 3 and the discharge pipe 5, receives the mixed water, A generating tank 41 having a bubble generating space therein for discharging the generated bubble to the outside; A plurality of collision members 42 arranged in the bubble generation space where the mixed water introduced from the inflow pipe 3 is discharged to the discharge pipe 5 and arranged so as to collide with each other during the movement of the mixed water, .

That is, mixed water in which air and water are mixed through the pump 2 is firstly generated in the generation tank 41 through the depressurization and microbubbles are generated through collision through the collision member 42 The microbubbles are generated secondarily by the shear force and can be economically provided through the structural simplification and miniaturization, and the microbubble generation efficiency is further improved.

The inner diameter of the inflow pipe 3 has a smaller diameter than the diameter of the generation tank 41 so that the water pressure of the mixed water moved inside the inflow pipe 3 is smaller than the inner diameter of the generation tank 41 It is preferable that the water pressure is formed to be smaller than the water pressure of the mixed water to be moved.

As a result, the air supersaturated through the inflow pipe 3 is supersaturated through the pressure reduction in the generation tank 41, and the air is formed into fine bubbles and micro bubbles are generated.

The outlet through which the mixed water is discharged from the inlet pipe 3 extends from the inside of the generating tank 41 to the vicinity of the bottom so that the mixed water discharged through the outlet collides with the bottom surface of the generating tank 41 And is discharged radially in the direction of the inner wall surface of the generation tank 41. [

That is, the mixed water discharged through the outlet collides with the bottom surface of the generation tank 41 and is discharged in the direction of the inner wall surface while being in contact with the bottom surface to collide with the inner wall surface to form turbulence or vortex, By applying pressure, microbubbles are generated.

It is preferable that the discharge pipe 5 discharges the mixed water outwardly from the inner upper end of the generation tank so that the outlet of the hydraulic pipe 3 and the separation distance are maximized, It is most preferable that the mooring time of the mixed water is maximized within the interior of the water tank, thereby increasing the micro generation efficiency.

In the micro bubble generator according to the present embodiment, the collision members 42 are formed with through-holes 421 through which the inflow pipe 2 is inserted while being mixed, And the impingement plate 423 is composed of a plate-shaped plate having a plurality of branched spaces 422 through which the number of the impinging plates 423 is divided into a plurality of numbers, It is most preferable that the branching space 422 is formed through an interval between the discrete pieces 424 formed.

It is preferable that the impingement plate 423 is formed in the shape of a 'disc', and it is most preferable that the impingement plate 423 is disposed perpendicular to the longitudinal direction of the generation tank 41 in the generation tank 41.

It is preferable that the discrete pieces 424 have a curved surface inclined from one end to the other end so that the mixed water flowing into the branching space 422 branches into a vortex form and passes through the branching space 422 .

Accordingly, as the mixed water is injected into the generation space of the micro bubbles while having a vortex shape, the contact efficiency of the residence time and the shearing pressure in the micro bubble generation space is remarkably increased to improve the generation efficiency of micro bubbles in the occupied space .

It is preferable that the impingement plate 423 is welded to the outer circumferential surface of the inflow pipe 3 while passing through the through hole 421. At this time, It is most preferable that they are welded and fixed at a position disposed inside the bath 41 with an interval therebetween.

The micro bubble generating device according to the present embodiment as described above mixes water and air from the outside through the pump 2 and supplies it to the generation tank 41 through the inflow pipe 3, Bubbles are generated primarily through collision with the impingement plate 423, and are discharged through the discharge pipe 5 to be used in a use place not shown.

In the micro bubble generator 1 according to the present embodiment, mixed water flowing from the pump 2 is transferred in a vortex form between the inlet pipe 3 and the pump 2, It is preferable that a mixing cylinder 6 to be supplied to the pipe 3 is placed.

That is, it is most preferable that the mixed water supplied to the inflow pipe 3 through the mixing tube 6 has a vortex shape.

On the other hand, in the mixing tube 6, the portion of the mixing tube 6 connected to the inflow pipe 3 gradually decreases in inner diameter, thereby increasing the water pressure and flow rate of the mixed water.

As described above, the micro bubble generator 1 according to the present embodiment is characterized in that the air supersaturated inside the inflow pipe 3 is depressurized in the inside of the generation tank 41 and passes through the dissolved air flotation method Diffusion Air Flotation (DAF), and generates microbubbles through collision with the impingement plate 423. As shown in FIG.

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: Pressurizing tank 2: Pump
3: inlet pipe 4: means for generating
41: generation tank 42: collision member
421: Through hole 422: Branch space
423: Collision plate 424: Revision of section
5: Discharge tube 6:: Mixing tube

Claims

An inflow pipe (3) for introducing mixed water of water and air from the outside through the pump (2); (41) formed in a 'barrel' shape having a bubble generating space in which a micro bubble is generated and connected to the inflow pipe (3) to receive the mixed water and generate a micro bubble, A plurality of through holes 421 are formed in the generating tank 41 so as to be spaced apart from each other and collide with each other during the movement of the mixed water while the inflow pipe 3 is passed therethrough, Shaped plate having a plurality of branch spaces 422 formed through the interval between the cut-away pieces 424 formed by being cut in the inner direction from the outer circumferential face so that the mixed water can be branched into a plurality of pieces while moving, And an outlet through which the mixed water is discharged from the inflow pipe 3 is extended from the inside of the generation tank 41 to the vicinity of the bottom "Barrel" shape of the bubble generating means (4) and; And a discharge pipe (5) for discharging mixed water containing microbubbles generated in the bubble generating means (4) to the outside, the microbubble generator comprising:
The discharge pipe (5)
To discharge the mixed water outward from the inner upper end of the generation tank 41;
The incisions 424,
To have a sloped surface from one end to the other;
The impingement plate (423)
Is connected to the outer circumferential surface of the inflow pipe (3) through the through hole (421) while welding;
Between the inflow pipe (3) and the pump (2)
(6) for transferring the mixed water flowing in the pump (2) in the form of a vortex and supplying the mixed water to the inlet pipe (3);
A portion of the mixing cylinder (6) connected to the inflow pipe (3)
And the inner diameter of the micro bubble generator is gradually decreased.

delete