KR20180075461A - Bobble generation nozzle - Google Patents

Abstract

The present invention relates to a bubble generation nozzle. More specifically, fine bubbles required in a water treatment step using a dissolved air floating scheme can be effectively generated. In particular, according to the present invention, an orifice is radially formed on a circular bubble generator. Thus, the size and generation amount of fine bubbles can be effectively adjusted in accordance with a water treatment capacity, and a component having an orifice formed thereon can be replaced. Accordingly, maintenance can be easily performed, and the function and lifecycle of a product can be improved. Moreover, according to the present invention, the number of orifices can be sufficiently increased, and the size of a discharge unit for discharging generated fine bubbles can be formed in a maximum size, such that a large quantity of water can be treated. Accordingly, reliability and competitiveness can be improved not only in the water treatment field, especially, the water treatment field using a dissolved air floating scheme, and the nozzle field for generating fine bubbles for a dissolved air floating scheme but also in the similar or related fields.

Description

[0001] The present invention relates to a nozzle for generating bubbles,

The present invention relates to a nozzle for generating bubbles, and more particularly, to a method for efficiently generating minute bubbles required in a water treatment process using a dissolved air flotation method.

More particularly, the present invention relates to a bubble generating nozzle capable of efficiently controlling the size and amount of minute bubbles according to the water treatment capacity, as well as being easy to maintain and improve the performance and life of the product.

Dissolved Air Flotation (DAF), which is one of the water treatment methods, is a water treatment method used mainly for removing suspension suspensions that are lighter than water. It is a method to float the floats to be removed using water bubbles to be.

Compared to the conventional sedimentation method, the dissolved air flotation method is advantageous in that it requires a small site area for facility installation, simple facilities, and can greatly improve pollutant removal efficiency and water quality.

The water treatment process using the dissolved air flotation method involves a step of flocculation and flocculation of particles, a step of microbubble formation, a step of microbubble adsorption, a step of lifting foreign matter and a step of removing foreign matter.

The most important technique in the water treatment process by the above-mentioned dissolved air flotation method is a technique for generating fine bubbles.

Generally, a method of generating fine bubbles is a method in which air is dissolved in processing water to be saturated, and then the pressure is rapidly reduced, air dissolved in the water is generated as a microcapsule, and a pressure reduction type nozzle is mainly used.

As described above, the nozzles that generate minute bubbles using the pressure drop have a complicated structure and difficult maintenance.

Accordingly, Korean Unexamined Patent Application Publication No. 10-2015-0079190 (hereinafter referred to as "Prior Art") has been filed for a nozzle for a dissolved air floating apparatus (hereinafter referred to as "prior art").

The prior art is constituted so that each constitution of the nozzle can be replaced, so that the maintenance can be facilitated, and the size and the residence time of the fine bubbles can be controlled.

However, in the case of the prior art, since the orifice is formed in the cutout portion of the nozzle body, there is a limitation in adding the orifice. In addition, due to the structural features that form the flow path, there are also limitations in changing the outlet size of the housing. Therefore, in the prior art, there is a restriction on the amount of bubbles to be generated, which may cause a limitation in improving water treatment efficiency.

Also, in the prior art, since the orifice in which high fluid pressure is generated is formed only in a specific direction, a biased stress must be applied to each constitution, which may affect the performance or life of the product have.

Korean Patent Laid-Open Publication No. 10-2015-0079190 'Nozzle for Dissolved Air Flotation Device'

In order to solve the above-mentioned problems, the present invention minimizes the restriction on the formation of the orifice directly involved in the generation of microbubbles, thereby effectively producing the microbubbles required in the water treatment process using the dissolved air flotation method And a nozzle for generating a bubble.

In particular, the present invention provides a bubble generating nozzle capable of efficiently controlling the size and generation amount of minute bubbles according to the water treatment capacity, as well as facilitating maintenance, by allowing replacement of the component in which the orifice is formed There is a purpose.

It is another object of the present invention to provide a bubble generating nozzle capable of improving the performance and lifetime of a product by making it possible to eliminate an imbalance in fluid pressure through balance of forces in forming an orifice.

The object of the present invention is achieved by a method of manufacturing an air conditioner, comprising: a housing which is formed in a tubular shape and into which supersaturated water in which air is dissolved is introduced into one side and air bubbles are discharged to the other side; And a bubble generator configured to generate bubbles in the supersonic water by colliding and diffusing the supersaturated water through an orifice formed in the interior of the housing to dissolve the supersaturated water. And a diffusion space formed between the inner surface of the housing and the outer surface of the bubble generator so that the outer surface of the bubble generator is spaced apart from the inner surface of the housing, And a bubble generating nozzle having vortex inducing protrusions formed on the inner side surface and the outer side surface of the bubble generating port.

At this time, the bubble generator may have an impingement portion formed in a direction perpendicular to the longitudinal direction of the housing, and after the supernatant introduced into one side of the housing collides with the impact portion, the bubble generator is moved from the inside to the outside of the bubble generator through the orifice And collide with the upper inner surface of the housing to generate bubbles.

It is further preferable that the bubble generator is formed in a cap shape such that the lower part is opened to allow the supernatant water to flow in, the plurality of orifices are formed on the side surface, and the upper part is closed to form the impingement part on the inner surface.

The supersaturated water that has passed through the orifice of the bubble generator and impinged on the inner surface of the upper portion of the housing diffuses in the upper and lateral directions in the diffusion space portion and is diffused inward in the upper end edge of the bubble generator .

The above object can also be accomplished by an upper housing having a tubular shape and having a locking protrusion formed on an inner side thereof; A bubble generator configured to be hermetically sealed in the upper part and formed in the inside of the upper housing so that a plurality of orifices radially formed on the side surface are caught by the latching jaw; And a lower housing detachably coupled to a lower portion of the upper housing to support the bubble generator, wherein an outer surface of the bubble generator is spaced apart from an inner surface of the upper housing, And a bubble generating nozzle having a vortex inducing protrusion formed on an inner surface of the upper housing and an outer surface of the bubble generating port to form the diffusion space portion between the inner side surface and the outer side surface of the bubble generating port .

At this time, the upper housing and the lower housing are formed such that the lower housing is screwed to the inside of the upper housing, and the bubble generator is formed in a cap shape such that a plurality of orifices are formed on the side surface, And can be supported by the lower housing.

The protrusion of the bubble generator may be formed to protrude in a ring shape at the lower edge of the side surface of the bubble generator. The protrusion width of the protrusion may be larger than the width of the protrusion, A diffusion space portion may be formed between the inner surfaces of the upper housing.

In addition, a plurality of vortex inducing protrusions may be formed on at least one of the inner surface of the upper housing and the outer surface of the bubble generator.

In addition, the bubble generator may be formed such that the orifice is symmetrical with respect to the central axis.

The bubble generator may be formed by inclining the orifice in one direction in a direction perpendicular to at least one of an inner side surface and an outer side surface of the bubble generator.

In addition, the bubble generator may be configured to have various sizes and numbers of orifices formed therein to be replaced in accordance with at least one of the water treatment capacity, the size of fine bubbles, and the amount of generated bubbles.

According to the present invention, by forming the orifice in a radial manner in the circular bubble generator, it is possible to minimize the restriction (the number and the like) of the formation of the orifice directly involved in the generation of the minute bubbles have.

Accordingly, the present invention has an effect of efficiently generating minute bubbles required in the water treatment process using the dissolved air floating method.

Particularly, the present invention has the advantage that the size and amount of minute bubbles can be efficiently controlled according to the water treatment capacity, and maintenance can be facilitated by allowing replacement of the component in which the orifice is formed.

Further, in forming the orifice, the present invention is advantageous in that the irregularity of the fluid pressure can be solved through the balance of the force by forming the orifice in a radial shape at a uniform interval as well as forming the symmetrical structure with respect to the central axis.

Thus, the present invention can prevent the occurrence of cracks or breakage, thereby improving the performance and life of the product.

Further, the present invention is advantageous in that the number of orifices can be sufficiently increased, and the size of the discharge portion through which the generated minute bubbles are discharged can be formed to a maximum size, thereby enabling a large-capacity water treatment.

Therefore, it is possible to improve reliability and competitiveness in the field of water treatment, especially in the water treatment field using the dissolved air floating method and the nozzle field for generating micro bubbles for the dissolved air floating method as well as similar or related fields.

1 is a partially cutaway perspective view showing an embodiment of a bubble generating nozzle according to the present invention.
Figure 2 is a partial cutaway side view of Figure 1;
3 is a partially cutaway perspective view of the upper housing shown in Fig.
Fig. 4 is a partially cutaway perspective view of the bubble generator shown in Fig. 1;
5 is a partially enlarged cross-sectional view showing another embodiment of the upper housing and the bubble generator shown in Fig.
Figs. 6 and 7 are partial cutaway plan views showing embodiments in which an orifice is formed in the bubble generation tool shown in Fig. 1. Fig.

Examples of the bubble generating nozzle according to the present invention can be variously applied, and the most preferred embodiments will be described below with reference to the accompanying drawings.

FIG. 1 is a partially cutaway perspective view showing one embodiment of a bubble generating nozzle according to the present invention, and FIG. 2 is a partial cutaway side view of FIG. 1.

Referring to FIG. 1, the bubble generating nozzle A includes a housing 100 and a bubble generator 200.

The housing 100 is formed in a tubular shape (a circular tube in FIG. 1), and supersaturated water into which the air is dissolved flows into the inlet 121 formed at one side (the lower side in FIG. 1) And discharges the bubbles to the discharge portion 111 formed on the other side (upper direction in Fig. 1).

The bubble generator 200 is configured inside the housing 100 to cause the supersaturated water to collide and diffuse so that the dissolved air is generated (generated) by bubbles and discharged in an upward direction.

At this time, the bubble generator 200 has an orifice 210 formed in a radial direction for generating a decompression effect while changing the movement path among the channels through which the supersaturated water moves, which will be described in more detail below .

Referring to FIG. 2, supersonic water introduced into the lower portion of the housing 100 flows along the central axis (upper and lower directions in FIG. 1) to the bubble generator 200 And then moved laterally through an orifice 210 radially formed in the bubble generator 200.

At this time, the supersaturated water moved to the bubble generator 200 may be moved through the orifice 210 while the movement path is changed after the first collision with the impact portion 201 of the bubble generator 200. Here, when the bubble generator 200 is formed in a cap shape as shown in FIGS. 1 and 2, the bubble generator 200, which is hermetically closed at the top, The inner surface of the upper portion of the impact portion 201 may be the impact portion 201.

2, the supersaturated water that has passed through the orifice 210 can be diffused in the lateral direction as shown in FIG. 2 and can move upward, while the supernatant of the upper end of the bubble generator 200 It can be further diffused from the edge to the inward direction.

In other words, due to the structural characteristics that can cause two collisions and two diffusion processes as shown in FIG. 2, not only the supersaturation is rapidly reduced in a short time, but also the efficiency of generating fine bubbles can be greatly improved, This can significantly improve the amount of microbubbles generated.

The housing 100 and the bubble generator 200 shown in FIGS. 1 and 2 may be integrally formed. However, the maintenance and repair of the bubble generator 200, which is directly related to the amount of generated bubbles, It is preferable that the structure is replaceable, and this will be described in more detail below.

3 is a partially cutaway perspective view of the upper housing shown in Fig.

Referring to FIG. 3, the upper housing 110 located at an upper portion of the housing 100 shown in FIG. 1 is formed in a tubular shape so that a discharge unit 111 is formed at an upper portion thereof. The lower housing 120 may be coupled to the lower housing 120. [

Accordingly, a male coupling portion 123 may be formed on the outer circumferential surface of the lower housing 120.

Although the upper housing 110 and the lower housing 120 may be detachably coupled by various coupling methods, as shown in FIGS. 1 and 2, In order to sufficiently support the sphere 200, it is preferable to be screwed.

A hook 112 for supporting the bubble generator 200 may be formed on the inner surface of the upper housing 110.

Fig. 4 is a partially cutaway perspective view of the bubble generator shown in Fig. 1;

Referring to FIG. 4, the bubble generator 200 may be formed into a cap shape as a whole.

More specifically, the bubble generator 200 is hermetically closed at its upper portion, and the impact portion 201 is formed on the inner surface thereof, and a plurality of orifices 210 may be formed radially on the side surface thereof.

In the lower end portion of the side portion, a latching portion 220 protruding in a ring shape along the edge may be formed.

In the process of inserting the bubble generator 200 into the upper housing 110, the latching part 220 is caught by the latching protrusion 112, and as shown in FIGS. 1 and 2, 220 can be firmly fixed while being pressed and supported by the lower housing 120.

2, the side surface of the bubble generator 200 in which the orifice 210 is formed and the side surface of the bubble generator 200 in which the orifice 210 is formed are formed to be larger than the width of the engaging step 112, The diffusion space portion 130 can be formed between the inner side surfaces of the diffusion space portion 130.

As described above, the supersaturated water passing through the orifice 210 collides with the inner surface of the upper housing 110 for a second time, diffuses in the lateral direction and the center direction, and is decompressed to generate a large amount of minute bubbles.

Accordingly, the present invention can replace different components (bubble generators) having various numbers of orifices, thereby enabling the size and amount of fine bubbles to be efficiently controlled according to the water treatment capacity, can do.

Particularly, in the process of forming the channel, the supercritical water introduced into the lower central portion moves to the side, diffuses to the side and the center, and is discharged to the entire upper region. Thus, the diffusion efficiency is greatly improved, .

5 is a partially enlarged cross-sectional view showing another embodiment of the upper housing and the bubble generator shown in Fig.

Referring to FIG. 5, a plurality of vortex inducing protrusions 114 and 214 may be formed on the inner surface of the upper housing 110 and the outer surface of the bubble generator 200. In this case, the vortex inducing protrusions 114 and 214 may be formed only on one of the inner surface of the upper housing 110 and the outer surface of the bubble generator 200.

As described above, when the vortex inducing protrusions 114 and 214 are formed in the diffusion space portion 130, a vortex can be formed due to the vortex inducing protrusions 114 and 214 as shown in FIG. 5, Thereby promoting the separation of the air dissolved in the air bubbles. Therefore, a larger amount of microbubbles can be actively formed.

It should be understood that the vortex inducing protrusions 114 and 214 may be modified in various ways as long as they induce vortex formation such as ribs or ribs of a specific type according to the requirements of those skilled in the art.

FIGS. 6 and 7 are partial cutaway plan views showing embodiments in which an orifice is formed in the bubble generation tool shown in FIG. 1; FIG.

6, the orifices 210 formed in the bubble generator 200 may be formed symmetrically with respect to the center of the bubble generator 200.

In particular, the orifice 210 may be radially formed at regular intervals with a central axis in order to apply a uniform pressure to the bubble generator 200 and the upper housing 110. This can eliminate the imbalance of fluid pressure through force balance.

6 (a) and 6 (b), by forming the orifice 210 radially, it is possible to minimize the number of the formation of the orifice 210 and thereby to manufacture nozzles of various capacities and performances It can be possible.

Accordingly, the present invention can efficiently generate the minute bubbles required in the water treatment process using the dissolved air floating method.

7 (a) and 7 (b), the present invention is characterized in that the orifice 210 is arranged in one direction from a direction perpendicular to at least one of the inner or outer surface of the bubble generator 200 It can be formed to be inclined.

Thus, when the orifice 210 is inclined, the supersonic flow is naturally induced by the rotational force in the process of diffusion of supersaturated water passing through the orifice 210 in the diffusion space portion 130, .

The bubble generating nozzle according to the present invention has been described above. It will be understood by those skilled in the art that the technical features of the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

It is to be understood, therefore, that the embodiments described above are in all respects illustrative and not restrictive.

A: Nozzle for bubble generation
100: Housing
110: upper housing 111:
112: engaging jaw 113: engaging portion
120: lower housing 123:
130: diffusion space part
200: bubble generator 201: impact part
210: Orifice
220:

Claims (11)

A housing which is formed in a tubular shape and into which supersaturated water in which air is dissolved flows in one side and discharges bubbles in the other side; And
A bubble generator which is formed in the housing and generates bubbles by causing the supersaturated water to collide and diffuse to dissolve the air while changing a movement path of the supersaturated water through a radially formed orifice; And
And a diffusion space formed between the inner surface of the housing and the outer surface of the bubble generator so that the outer surface of the bubble generator is spaced apart from the inner surface of the housing,
Wherein a vortex inducing projection is formed on an inner surface of the housing forming the diffusion space portion and an outer surface of the bubble generating port. The method according to claim 1,
The bubble generator may include:
An impact portion is formed in a direction perpendicular to the longitudinal direction of the housing,
Wherein the supersonic water introduced into one side of the housing moves from the inside to the outside of the bubble generator through the orifice after colliding with the impact portion and collides with the inner surface of the upper portion of the housing to generate bubbles Generating nozzle. 3. The method of claim 2,
The bubble generator may include:
Wherein a lower portion is opened to allow supersonic water to flow in, a plurality of orifices are formed on a side surface, and an upper portion is closed so that an inner side surface is formed in a cap shape to form a collision portion. The method according to claim 1,
The supersaturated water that has passed through the orifice of the bubble generator and impinged on the inner surface of the upper portion of the housing diffuses in the upper and lateral directions in the diffusion space portion and is diffused inward in the upper end edge of the bubble generator And a bubble generating nozzle. An upper housing formed in a tubular shape and having a locking protrusion formed on an inner side thereof;
A bubble generator configured to be hermetically sealed in the upper part and formed in the inside of the upper housing so that a plurality of orifices radially formed on the side surface are caught by the latching jaw; And
And a lower housing detachably coupled to a lower portion of the upper housing to support the bubble generator,
Wherein an outer surface of the bubble generator is spaced apart from an inner surface of the upper housing, a diffusion space is formed between an inner surface of the upper housing and an outer surface of the bubble generator,
Wherein a vortex inducing projection is formed on an inner surface of the upper housing forming the diffusion space and an outer surface of the bubble generating port. 6. The method of claim 5,
Wherein the upper housing and the lower housing are connected to each other,
The lower housing is screwed into the upper housing,
The bubble generator may include:
Wherein the cap is formed in a cap shape so as to form a plurality of orifices on a side surface thereof and is inserted inwardly from a lower portion of the upper housing and supported by the lower housing. The method according to claim 6,
Wherein the latching portion of the bubble-
A ring-shaped protrusion formed on an edge of a lower portion of the side surface,
The projecting width of the engaging portion
Wherein a diffusion space is formed between the outer surface of the bubble generator and the inner surface of the upper housing, the diffusion space being larger than the width of the engagement protrusion. 8. The method of claim 7,
Wherein a plurality of vortex inducing projections are formed on at least one of an inner surface of the upper housing and an outer surface of the bubble generator. 9. The method according to any one of claims 5 to 8,
The bubble generator may include:
Wherein the orifice is formed to be symmetrical with respect to a center axis. 10. The method of claim 9,
The bubble generator may include:
Wherein the orifice is formed to be inclined in one direction in a direction perpendicular to at least one of an inner side surface and an outer side surface of the bubble generation port. 9. The method according to any one of claims 5 to 8,
The bubble generator may include:
Characterized in that the orifices of various sizes and numbers are formed so as to be replaced in accordance with at least one of the water treatment capacity, the size of fine bubbles and the amount of generated bubbles.

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