WO2017014511A1

WO2017014511A1 - Microbubble-generating device

Info

Publication number: WO2017014511A1
Application number: PCT/KR2016/007768
Authority: WO
Inventors: 김홍노
Original assignee: 김홍노
Priority date: 2015-07-17
Filing date: 2016-07-18
Publication date: 2017-01-26
Also published as: KR101667492B1

Abstract

The present invention relates to a microbubble-generating device which is adapted to allow production costs to be substantially reduced as, even with a straightforward configuration, the same microbubble generating effect is provided. The present invention comprises: an inflow section, passing through which is formed an internal space into and along which a liquid flows, and which has a gas-inflow tube coupled passing through into same on one side at the rear thereof; a microbubble-generating section which is linked to the rear end of the inflow section and of which the front side projects into the internal space of the inflow section, and which has, formed on said front side, an orifice for generating microbubbles at the rear as the liquid in the internal space flows into same while the gas flows in from the gas-inflow tube; and a discharge section which is linked to the rear end of the microbubble-generating section and discharges the liquid containing the microbubbles.

Description

Micro Bubble Generator

The present invention relates to a micro-bubble generating device applied to the water treatment and various cleaning fields, and more particularly, by generating micro-bubbles in the liquid during the flow of the liquid to increase the dissolved amount of the gas to improve the water treatment or cleaning efficiency The present invention relates to a microbubble generating device.

In general, microbubble generators are used to contain large amounts of oxygen, air or other necessary gases in water to purify contaminated water or to improve the water quality.

Conventional microbubble generating device has a structure for generating microbubbles by passing a liquid containing dissolved gas through a filter having a fine outlet hole such as a wire mesh, and a structure for subdividing bubbles by using the rotational force of the rotary blades Divided into the back.

An example of the conventional micro-bubble generating device using a filter having a micro-outlet, in the Republic of Korea Patent Publication No. 10-2005-0117035 (published on Dec. 14, 2005) to introduce water to the microbubble generating means Water injection means for adjusting the flow rate and pressure of the incoming water, Gas injection means for introducing the gas to the micro-bubble generating means to be described later to control the flow rate and pressure of the incoming gas, The inflow water delivery means and gas injection means Injecting water and gas from the micro-bubble generating means for generating micro-bubbles in the inlet water by using a micro-filter, and the inlet water containing the micro-bubbles generated by the micro-bubble generating means at a constant pressure Disclosed is a microbubble generating device using a microfilter comprising a spraying means.

However, such a conventional microbubble generating device has to be provided with a large high-pressure pump that can provide a high pressure to the fluid, there is a problem that the device is large and the manufacturing cost increases.

In addition, as an example of a conventional micro-bubble generating device using a rotary blade, the Republic of Korea Patent Publication No. 10-2012-0039385 (published on April 25, 2012) is provided with the inlet and discharge port for air and water from the outside The pump chamber is provided with an impeller formed of a plurality of compartments of an isosceles triangle with a wide outer side and a narrow inner side, which are coupled to the shaft of the motor and are rotated by being fitted to the shaft of the motor. The air and water are mixed by the vacuum suction input generated by the rotation of the impeller. Vacuum induction suction pump to be pumped and the inlet pipe connected to the outlet of the vacuum induction suction pump is connected in communication with the inlet for receiving the mixed water mixed with air and water and the outlet for discharging the mixed water The stirring chamber has a stirring chamber installed on the shaft of the stirring motor while rotating while hitting the mixed water introduced into the stirring chamber Disclosed is a microbubble generating device comprising a stirring vessel provided with a plurality of stirring vanes.

However, such a conventional microbubble generating device requires a high pressure and requires a high speed of rotation, thereby causing a high power cost.

The present invention has been made to solve the above-mentioned problems of the prior art, the object of the present invention is to provide a micro-bubble generating device that can significantly reduce the manufacturing cost as the same micro-bubble generating effect is provided even in a simple configuration. .

The micro-bubble generating device according to the present invention for realizing the object as described above, the inlet through which the inner space through which the liquid is introduced and flows through the gas inlet pipe is coupled through the inside, and the inlet A microbubble that is connected to the rear end and the front side protrudes into the inner space of the inlet, and an orifice is formed on the front side to allow the liquid in the inner space to flow in and at the same time the gas flows in from the gas inlet pipe to generate a microbubble backwards. And a discharge part connected to the rear end of the micro bubble generator and discharging the liquid including the micro bubbles.

The inflow portion includes a small diameter portion into which fluid is introduced, a large diameter portion integrally connected to the small diameter portion and gradually expanding an inner diameter toward the rear, and a large diameter portion integrally connected to the enlarged diameter portion.

In addition, the front side of the micro-bubble generating portion includes a wide diameter portion located in the enlarged diameter portion of the inlet portion and gradually expanding the outer diameter toward the rear, and a large diameter portion integrally connected to the enlarged diameter portion and located in the large diameter portion of the inlet portion. It features.

The inlet gas inlet pipe is connected to the boundary point of the enlarged diameter portion and the large diameter portion in front of the micro-bubble generating portion.

The orifice of the microbubble generating unit is formed along a longitudinal center line of the microbubble generating unit and is vertically communicated with the air inlet pipe of the inlet.

The front side of the micro-bubble generating portion protruding into the inner space of the inlet is characterized in that the side liquid inlet hole through which the vortex is generated to the rear while the liquid in the inner space is introduced from the side.

The side liquid inlet hole is characterized in that it is formed through the eccentric through the orifice to one side on the basis of the longitudinal center line of the microbubble generating portion.

The inner diameter of the front end of the discharge portion is larger than the inner diameter of the rear end of the microbubble generating portion.

The front side inner peripheral surface of the discharge portion is characterized in that the dispersion grooves are formed at a predetermined angle intervals to induce the micro-bubbles burst into smaller sizes.

The inner diameter of the front side of the discharge part in which the dispersion groove is formed is kept the same, and the inner diameter of the rear side of the discharge part after the dispersion groove gradually increases toward the rear side.

According to the micro-bubble generating device according to the present invention, three parts, that is, the inflow portion of the liquid is introduced and the gas inlet pipe is coupled through the inside, and the liquid flows into the front side protruding into the inner space of the inlet and the gas Since the same microbubble generating effect is provided even with a simple configuration consisting of a microbubble generating part in which an orifice for generating microbubbles is formed and a discharge part for discharging liquid including microbubbles is provided, the manufacturing cost can be greatly reduced. There is an advantage.

In addition, according to the micro-bubble generating device according to the present invention, as the side liquid inlet hole is formed through the front side of the micro-bubble generating unit protruding into the inner space of the inlet portion, the liquid in the inner space of the inlet portion is generated through the side liquid inlet hole Vortex is generated in the rear side while flowing from the side of the negative side, and thus the effect of generating and dispersing microbubbles is doubled.

In addition, according to the micro-bubble generating device according to the present invention, when the dispersion groove is formed at a predetermined angle interval on the front inner peripheral surface of the discharge portion, when the micro-bubbles generated in the micro-bubble generating portion is introduced into the discharge portion, friction or collision with the dispersion groove It has the advantage of being dispersed and discharged to a smaller size.

1 is a perspective view of a micro-bubble generating device according to an embodiment of the present invention.

Figure 2 is an exploded perspective view of the microbubble generating device according to an embodiment of the present invention.

3 is a cross-sectional view of the micro-bubble generating device according to an embodiment of the present invention.

4 is an operation of the micro-bubble generating device according to an embodiment of the present invention.

Best mode for the implementation of the micro-bubble generating device of the present invention, the inner space through which the liquid flows into the flow is formed through the inlet and the gas inlet pipe is coupled to the inner side through the inlet, the rear end is connected to the rear end And the front side protrudes into the inner space of the inlet, and the front side of the microbubble generating unit is formed with an orifice for generating a microbubble backwards while the gas is introduced from the gas inlet pipe while the liquid in the inner space is introduced, It is connected to the rear end of the micro-bubble generating portion and includes a discharge portion for discharging the liquid containing the micro-bubbles.

Hereinafter, with reference to the accompanying drawings, it will be described in detail the configuration and operation of the preferred embodiment of the present invention.

Microbubble generating device 1 according to an embodiment of the present invention, as shown in Figures 1 to 4, largely, the inlet 10, the microbubble generating unit 20 and the discharge unit 30 Include.

Here, the inlet 10 is a constituent member into which the liquid to be contained in the microbubble, such as a liquid to be treated, a liquid to be cleaned or a cleaning liquid, flows in.

If the inlet part 10 has a tubular shape through which liquid flows, the small diameter part 10a into which the fluid flows, and the enlarged part 10b which is integrally connected to the small diameter part 10a and gradually enlarges the inner diameter toward the rear part, are introduced. ) And a large diameter portion 10c integrally connected to the enlarged diameter portion 10b.

Although not shown in the front end of the inlet 10 is connected to the inlet pipe in which the pump is installed, the inner space 11 through which the liquid flows into the inlet 10 is formed through, the inlet 10 At the rear one side thereof, a gas inlet pipe 13 through which the gas is mixed when liquid is introduced into the orifice 21 of the microbubble generating unit 20 which will be described later is penetrated therein.

One end of the gas inlet pipe 13 may be exposed to the atmosphere, or may be connected to a gas tank filled with a specific gas at a high pressure by a connecting pipe.

The microbubble generating unit 20 is connected to the rear end of the above-described inlet 10, and the microbubble generating unit 20 generates microbubbles by allowing gas to be mixed into the liquid flowing from the inlet 10. As a structural member to be made, it has a normal tubular shape except for the front side 21 in which the orifice 23 is formed.

Although the microbubble generation unit 20 is shown to be joined to the rear end of the inlet 10 by welding or the like, depending on the salsa, the rear end of the inlet 10 may be screwed through the interposition of the packing. .

The front side 21 of the microbubble generating unit 20 protrudes into the internal space 11 of the inlet 10, and the front side 21 of the microbubble generating unit 20 is the inlet 10. The large diameter portion 21a, which is located in the enlarged diameter portion 10b of the enlarged diameter portion 21a, and whose outer diameter gradually increases toward the rear, is integrally connected to the enlarged diameter portion 21a and located in the large diameter portion 10c of the inflow portion 10. It has a shape including 21b.

An orifice 23 is formed on the front side 21. The orifice 23 has a high speed due to the throttle length due to the difference in cross-sectional area when the liquid in the inner space 11 of the inlet portion 10 is introduced therein. Furnace fluid flows through and at the same time the gas is automatically introduced from the gas inlet pipe 13 due to the pressure difference is introduced into the liquid to generate micro bubbles in the liquid, the inlet portion (23a) 10) is connected to the gas inlet pipe (13).

The gas inlet pipe 13 is particularly preferably connected to the boundary point between the enlarged diameter portion 21a and the large diameter portion 21b among the front side 21 of the microbubble generating portion 20.

The orifice 23 of the microbubble generating part 20 is formed along the longitudinal center line of the microbubble generating part 20 and is perpendicular to the air inlet pipe 13 of the inlet part 10 by the connecting passage 23a. It is preferred to communicate.

When the liquid in the internal space 11 of the inlet portion 10 flows into the orifice 23 having a narrow cross-sectional area, the flow velocity rapidly increases according to the throttling action of the orifice 23, while the pressure (static pressure) decreases rapidly. This phenomenon is further intensified by inertia. Therefore, the outside air under atmospheric pressure or the gas in the tank of constant pressure is introduced into the relatively low pressure orifice 23 through the gas inlet pipe 13 by the pressure difference, and is mixed into the liquid flowing through the orifice 23 within the liquid. Microbubbles are generated.

As the liquid flowing through the orifice 23 is discharged into the inner space of the microbubble generating unit 20 having a much larger inner diameter than the orifice 23, the flow velocity is significantly reduced.

In addition, the side liquid inlet 25 is formed in the front side 21 of the microbubble generating unit 20 protruding into the inner space 11 of the inlet 10.

The side liquid inlet hole 25 ruptures and disperses the microbubbles more finely by allowing the liquid in the internal space 11 of the inlet part 10 to flow into the microbubble generating part 20 from the side to generate vortices backwards. In order to facilitate the formation of the vortex by the side inflow of the liquid, it is formed to be eccentrically penetrated to one side with respect to the longitudinal center line of the microbubble generating unit 20 immediately after the orifice 23.

The discharge end 30 is connected to the rear end of the microbubble generating unit 20 described above, and is a constituent member for discharging the liquid including the microbubbles.

Although the discharge part 30 is illustrated as being joined to the rear end of the microbubble generating part 20 by welding or the like, according to the embodiment, the rear end of the microbubble generating part 20 may be screwed under the interposition of the packing. It may be. Although not shown, another discharge pipe is connected to the rear end of the discharge unit 30.

It is preferable that the inner diameter of the front end of the discharge part 30 is larger than the inner diameter of the rear end of the microbubble generation part 20 so that the flow rate of the liquid discharged to the discharge part 30 can be further reduced.

In addition, dispersing grooves 31 are formed at regular angles on the front inner circumferential surface of the discharging part 30, and the dispersing grooves 31 collide with the liquid including the micro bubbles flowing into the discharging part 30 by vortices. While inducing the micro-bubbles to be broken in a smaller size while being dispersed, it is preferable that a total of four are formed one by one at an angle of 90 degrees on the front inner circumferential surface of the discharge part 30.

In order to easily disperse the micro bubbles, the inner diameter of the front side of the discharging portion 30 in which the dispersing grooves 31 are formed is preferably kept the same, and the discharge after the dispersing grooves 31 is reduced so that the flow velocity gradually decreases toward the rear side. It is preferable that the inner diameter of the rear side of the portion 30 gradually increases toward the rear side.

In the case of the micro-bubble generating device 1 according to the embodiment of the present invention described above, three parts, that is, the inlet portion 10 through which the liquid is introduced and the gas inlet pipe 13 is coupled through the inside, and the inflow Microbubble generating unit 20 and microbubble including an orifice 23 is formed in the front side 23 protruding into the inner space of the part 10 and the gas is mixed at the same time as the gas is mixed with the microbubble is generated Even with a simple configuration consisting of a discharge unit 30 for discharging a liquid, the same microbubble generating effect is provided, thereby greatly reducing the overall manufacturing cost.

In addition, in the case of the micro-bubble generating device 1 according to an embodiment of the present invention, the side liquid on the front side 21 of the micro-bubble generating unit 20 protruding into the inner space 11 of the inlet 10. As the inlet hole 25 penetrates, the liquid in the inner space 11 of the inlet part 10 flows in from the side of the microbubble generating part 20 through the side liquid inlet hole 25, and thus By generating the vortex backward, the effect of generating and dispersing microbubbles can be doubled, which can increase the water treatment or cleaning effect.

In addition, in the case of the microbubble generating device 1 according to an embodiment of the present invention, the microbubble generating unit 20 is formed by dispersing grooves 31 formed at regular angle intervals on the front inner peripheral surface of the discharge part 30. When the micro-bubbles generated in the) is introduced into the discharge portion 30, it is rubbed and collided with the dispersion groove 31 to be broken down into smaller sizes, which can be dispersed and discharged, thereby increasing the water treatment or cleaning effect.

As described above, the present invention is not limited to the above-described embodiments, and modifications apparent by those skilled in the art to which the present invention pertains may be made without departing from the technical spirit of the present invention claimed in the claims. It is possible that such modifications are within the scope of the present invention.

The present invention relates to a micro-bubble generating device applied to the water treatment and various cleaning fields, the industrial field that can improve the water treatment or cleaning efficiency by increasing the dissolved amount of the gas by generating micro-bubbles in the liquid during the flow of the liquid It is an invention of high availability.

Claims

An inlet 10 through which an inner space 11 through which liquid flows is formed, and a gas inlet pipe 13 penetrated thereinto at a rear side thereof;

It is connected to the rear end of the inlet portion 10 and the front side 21 protrudes into the inner space 11 of the inlet portion 10 and the liquid in the inner space 11 flows into the front side 21. At the same time the micro-bubble generating unit 20 is formed with an orifice 23 for generating a micro-bubble to the rear while the gas is introduced from the gas inlet pipe 13; And

And a discharge unit (30) connected to the rear end of the micro bubble generator (20) and discharging the liquid including the micro bubbles.
The method according to claim 1,

The inflow portion 10 is a small diameter portion 10a into which fluid is introduced, an enlarged diameter portion 10b that is integrally connected to the small diameter portion 10a and gradually expands inward toward the rear, and the enlarged diameter portion 10b. Microbubble generating device comprising a large diameter portion (10c) integrally connected to).
The method according to claim 2,

The front side 21 of the microbubble generating unit 20 is located in the enlarged diameter portion 10b of the inflow portion 10 and the enlarged diameter portion 21a of which the outer diameter gradually increases toward the rear, and the enlarged diameter portion ( And a large diameter portion (21b) integrally connected to the large diameter portion (10c) of the inlet portion (10a).
The method according to claim 3,

The gas inlet pipe 13 of the inlet 10 is connected to the boundary between the enlarged diameter portion 21a and the large diameter portion 21b of the front side 21 of the microbubble generating portion 20. Microbubble generating device.
The method according to any one of claims 1 to 4,

The orifice 23 of the microbubble generating unit 20 is formed along the longitudinal center line of the microbubble generating unit 20 and is vertically communicated with the air inlet pipe 13 of the inlet 10. Microbubble generating device.
The method according to any one of claims 1 to 4,

In the front side 21 of the micro-bubble generating unit 20 protruding into the inner space 11 of the inlet portion 10 so that the liquid in the inner space 11 flows from the side to generate a vortex backward Fine liquid bubble generating device characterized in that the side liquid inlet hole 25 is formed through.
The method according to claim 6,

The side fluid inlet hole 25 is formed immediately after the orifice 23, the microbubble generating device characterized in that the eccentric through-holes formed on one side based on the longitudinal center line of the microbubble generating unit (20).
The method according to any one of claims 1 to 4,

The inner diameter of the front end of the discharge portion 30 is fine bubble generator, characterized in that larger than the inner diameter of the rear end of the micro-bubble generating portion (20).
The method according to claim 8,

Microbubble generating device, characterized in that the front side of the inner peripheral surface of the discharge portion 30 is formed in a predetermined angular interval to the dispersion groove 31 to guide the micro-bubbles burst to a smaller size.
The method according to claim 9,

The inner diameter of the front side of the discharge portion 30 in which the dispersion groove 31 is formed remains the same, and the inner diameter of the rear side of the discharge portion 30 after the dispersion groove 31 gradually increases toward the rear. Microbubble generating device characterized in that.