KR102575661B1 - Oxygen supply apparatus through air supply with low power - Google Patents

Abstract

The present invention improves the efficiency of generating microbubbles by stacking a plurality of perforated plates to induce collisions and vortices in a plurality of places in inflow raw water and air, and in particular, as the generated microbubbles are in contact with the atmosphere in the process of flowing, unnecessary It relates to an oxygen supply device through air supply with low power to further increase the solubility of oxygen with degassing of harmful gases, and more specifically, an inlet pipe having an internal space and having a fluid inlet hole formed at the lower end; a vortex-forming pipe part that communicates with the upper end of the inlet pipe part and includes a bent part extending from the upper end and bent so that an outlet is provided at one end; an induction pipe part in which the outlet of the bent part is in communication with the side, the upper end of which is exposed above the water surface and the lower end is located below the water surface around the communication part; and an air injection unit communicating with the inlet pipe through an air injection line to inject air.

Description

Oxygen supply apparatus through air supply with low power}

The present invention improves the efficiency of generating microbubbles by stacking a plurality of perforated plates to induce collisions and vortices in a plurality of places in inflow raw water and air, and in particular, as the generated microbubbles are in contact with the atmosphere in the process of flowing, unnecessary It relates to an oxygen supply device through air supply with low power that can further increase the solubility of oxygen together with degassing of harmful gases.

The existing micro-bubble generation method is a pressurized bubble generation method that pressurizes air with an air compressor to saturate it with water and then lowers the pressure below atmospheric pressure to create micro-bubbles, and generates bubbles by passing air through a nozzle (diffusion tube) with fine holes. The acid air bubble generation method is widely used.

For example, in Korean Patent Registration No. 0902189, a cylindrical body having inlets and outlets on both sides; a vortex forming unit disposed on the side of the inlet inside the cylindrical body to vortex the fluid containing the air bubbles passing through the cylindrical body; and a bubble generating unit disposed on the side of the outlet inside the cylindrical body to form ultra-fine bubbles from air bubbles included in the fluid passing through the vortex forming unit, wherein the bubble generating unit is disposed on a part of the exhaust port of the body. A fixing bar detachably coupled to the exhaust port while opening; a support rod having one end coupled to the fixed rod and disposed along the axial direction of the body; and an air crushing unit coupled to the outer circumference of the support rod to crush air bubbles passing through the body.

However, even in the case of the above technology, it is not easy to ultra-fine bubbles to a size of micro or less uniformly, and in the case of micro-bubbles using such a device, it is difficult to expect sufficient bubble residence time in water, resulting in low mass transfer efficiency.

Republic of Korea Patent Registration No. 0902189

Therefore, an object of the present invention is to increase the reaction surface area by microbubbles by generating uniform microbubbles, as well as to ensure sufficient residence time of microbubbles in water, thereby doubling the mass transfer efficiency and providing air with low power that is advantageous in terms of energy. It is intended to provide an oxygen supply device through supply.

As a means for achieving the above object, an oxygen supply device (hereinafter referred to as 'the device of the present invention') through air supply with low power of the present invention includes an inlet pipe having an inner space and having a fluid inlet hole formed at the lower end; a vortex-forming pipe part that communicates with the upper end of the inlet pipe part and includes a bent part extending from the upper end and bent so that an outlet is provided at one end; an induction pipe part in which the outlet of the bent part is in communication with the side, the upper end of which is exposed above the water surface and the lower end is located below the water surface around the communication part; and an air injection unit communicating with the inlet pipe through an air injection line to inject air.

As an example, a perforated plate having a plurality of perforated holes is stacked at the lower end of the vortex-forming pipe part or the induction pipe part, but the perforated holes facing up and down are formed in a zigzag pattern.

As an example, it is characterized in that a screw thread is formed on the inner periphery of the perforated hole of the perforated plate.

As an example, it is characterized in that the screw threads of the perforated holes adjacent to each other vertically or forward and backward in the perforated board are configured in opposite directions of rotation.

As an example, the perforation of the perforated plate is characterized in that it is configured to have at least two or more different diameters.

As an example, the vortex-forming tube portion is characterized in that it includes a plurality of vortex-forming rods having threads formed on the outer periphery while protruding radially from the upper or lower portion of the perforated plate toward the centripetal direction.

As an example, it is characterized in that sludge incisions including a central tube and cutting blades protruding in plurality radially from the central tube are further included between the perforated plates.

As described above, the apparatus of the present invention improves the efficiency of generating uniform microbubbles by stacking a plurality of perforated plates to induce collisions and vortices in a plurality of places in the incoming raw water and air, and in particular, in the process of flowing the generated microbubbles, the standby As the contact is made, it is possible to further increase the solubility of oxygen together with degassing of unnecessary harmful gases, and there is an advantage in terms of energy.

1A is a cross-sectional side view showing a basic example of the apparatus of the present invention.
Figure 1b is a side cross-sectional view showing an example in which the perforated plate of the present invention is installed at the lower end of the induction tube unit.
2 is an operating state diagram of a perforated board according to an embodiment of the present invention.
Figure 3 is a perspective view showing an embodiment of a perforated board in the present invention.
4a and 4b are operational state diagrams showing a main mechanism causing collision between vortices in the embodiment shown in FIG. 3;
Figure 5 is an operating state diagram showing another embodiment of the perforated board in the present invention.
6 is an operating state diagram of an induction pipe according to an embodiment of the present invention.
7 is a partial side cross-sectional view showing another example of the device of the present invention.
Figure 8 is a side cross-sectional view showing an example in which sludge incisions are further included in the perforated plate.

In describing the present invention, the terms or words used in this specification and claims are based on the principle that the inventor can appropriately define the concept of the term in order to best describe his or her invention. should be interpreted as a meaning and concept that corresponds to the technical idea of

Referring to FIG. 1A, the device 1 of the present invention communicates with an inlet pipe part 2 having an inner space 20 and having a fluid inlet hole 21 formed at the lower end, and the upper end of the inlet pipe part 2, The vortex-forming pipe part 3 including the bent part 30 extending from the top and bent so that the outlet 300 is provided at one end, and the outlet 300 of the bent part 30 communicates with the side surface, and the communication part Including an induction pipe part (4) whose upper end is exposed above the water surface and the lower end is located below the surface of the water and an air injection part (5) which communicates with the inlet pipe part (4) through an air injection line (50) to inject air, It consists of

A fluid inlet hole 21 is formed at the lower end of the inlet pipe part 2 so that the fluid to be treated, that is, the raw water W1 flows in, and the introduced raw water W1 flows upward.

An air injection line 50 communicates with any part of the side surface of the inlet pipe part 2 so that the air a provided from the air injection part 5 is injected into the inner space 20, thereby influencing the incoming raw water W1. Allow air (a) to melt.

At this time, the injected air is preferably compressed air.

As the air (a) is supplied into the inlet pipe part (2) through the air injection line (50), the raw water (W1) inside the inlet pipe part (2) generates an upward force as the air (a) is dissolved. In addition, as the specific gravity of the raw water (W1) decreases, the fluid inside the inlet pipe part (2) rises upward as much as the difference in specific gravity with the fluid outside the inlet pipe part (2). Therefore, the raw water (W1) flows into the inlet pipe part (2) and is moved upward as well, without the operation of a separate suction pump.

On the other hand, in the apparatus 1 of the present invention, as shown in FIGS. 1A and 1B, a perforated plate 31 having a plurality of perforated holes 311 formed at the lower end of the vortex-forming pipe part 3 or the induction pipe part 4 is laminated It is installed so that it is characterized in that the perforated holes 311 facing up and down are formed in a zigzag pattern.

At this time, the perforated plate 31 induces the formation of a vortex with respect to the flowing fluid so that the generation of microbubbles can be effectively achieved, and the mechanism of action for generating microbubbles is the same regardless of the installation position. 31) will be described with reference to an example formed in the vortex-forming pipe portion 3.

The vortex-forming pipe part 3 is configured to communicate with the upper end of the inlet pipe part 2, and perforated plates 31 in which a plurality of perforated holes 311 are formed are stacked. In the case of perforated plates 31 mutually adjacent to each other Perforated holes 311 facing up and down are arranged in a zigzag pattern.

The air (a) injected in the form of bubbles along with the raw water (W1) moving upward in the inner space (20) of the inlet pipe (2) is introduced into the vortex-forming pipe (3).

That is, the vortex-forming pipe part 3 allows the upwardly moving raw water W1 and the air a to pass through the perforated holes 311 of the plurality of perforated plates 31, facing each other as shown in FIG. By making the perforated hole 311 to be configured in a zigzag pattern, the raw water W1 and the air (a) passing through the perforated hole 311 at the bottom are guided to the perforated hole 311 while colliding with the body of the perforated plate 311 of the adjacent upper part. .

In this process, repetitive collisions and vortices are formed between the raw water (W1) and the air (a), and as the collision and friction between the vortices are maximized by the collisions and vortices formed in a plurality of places, the raw water (W1) and the air (a) is to generate the mixed number of microbubbles (W2) and to double the miniaturization efficiency.

Preferably, the screw thread 311-1 is formed on the inner periphery of the perforated hole 311 so that a vortex is automatically formed along the screw thread 311-1 while the fluid passes through the perforated hole 311, thereby miniaturization efficiency allow this to be further multiplied.

And in the apparatus 1 of the present invention, the thread 311-1 is configured in the perforated hole 311, but as mentioned above, a representative embodiment for maximizing collision and friction between vortices is shown in FIGS. 4A to 5 is being presented

First, the embodiment presented in FIG. 4A is characterized in that a plurality of perforated plates 31 are stacked, and perforated holes 311 facing up and down in the perforated plates 31 to be stacked are arranged in a cross shape.

By this configuration, as shown in the drawing, the vortex S1 formed while passing through the perforated hole 311 located at the bottom collides with the body of the perforated hole 311 located at the top and is guided into the perforated hole 311 , so that another vortex S2 is formed in the upper perforated hole 311. That is, while forming a plurality of vortices S1 and S2 upward and downward, the collision of the vortices S1 is formed so that the collision and friction between the vortices is maximized.

In addition to this, as shown in FIG. 5 , the perforated holes 311 constituting the perforated plate 31 are configured to have at least two or more different diameters so that the pressure in the vortex is varied, thereby doubling miniaturization.

As an example, by configuring the diameter d2 of the perforated plate 311 constituting the perforated plate 31 located at the bottom to be larger than the diameter d1 of the perforated hole 311 constituting the perforated plate 31 located at the top, As the diameters of the vortices S1 and S2 formed together with the arrangement structure in which the perforated holes 311 facing downwards change, pressure fluctuations are induced so that miniaturization is further doubled.

Meanwhile, the embodiment presented in FIG. 4B is characterized in that the direction of the thread 311-1 of the perforated hole 311 constituting the perforated plate 31 is differently disposed. For example, in the perforated plate 31, the screw threads 311-1 of the perforated holes 311 adjacent to each other vertically or forward and backward are rotated in opposite directions.

That is, as shown in FIG. 4B, the direction of the thread 311-1 is reversed in the adjacent perforated hole 311, so that the vortexes S1 and S2 generated from each perforated hole 311 generate rotational force in the opposite direction Accordingly, by inducing greater collision and friction between rotations, mixing between the raw water (W1) and the air (a) as well as miniaturization can be achieved more effectively.

Meanwhile, the vortex-forming pipe part 3 may include a bent part 30 extending from the upper end of the upper perforated plate 31 and bent so that the outlet 300 is provided at one end. For example, the bent portion 30 may have an elbow shape.

As shown in FIG. 6, the induction pipe part 4 is in communication with the outlet 300 of the bent part 30 through a coupling on the side, and the upper end is exposed above the water surface and the lower end is exposed on the surface of the water are placed so that they are below

That is, the induction tube part 4 has an 'A'-shaped tube structure, and the upper end protrudes above the water surface and the lower end is located below the water surface, so that the number of microbubbles generated and moved from the vortex forming tube part 3 (W2 ) to flow smoothly from under the surface to near the surface.

As described above, in the induction pipe part 4, the fine bubble water W2 mixed with the raw water W1 and the air a is injected from the air injection part 6 by the injection of the air a, from the vortex forming pipe part 3 It overflows and flows in, and as the fine bubble water (W2) overflows, a very thin bubble film is created at the upper end exposed on the surface of the water, so that contact with air existing in the atmosphere can be remarkably increased.

At this time, the thickness of the above-mentioned bubble film was investigated to be about 100 μm to 200 μm, and unnecessary gases such as hydrogen sulfide and ammonia dissolved in water were degassed from the bubble film, and at the same time, oxygen in the atmosphere was instantaneous due to phase equilibrium. As it melts, it is possible to further improve the solubility of oxygen in the fine bubble water (W2), thereby reducing the energy required for air injection by the air injection unit (5).

On the other hand, in the present invention, an embodiment in which the miniaturization efficiency is further doubled by forming the vortex more three-dimensionally is presented in FIG. 7 .

In this embodiment, a plurality of vortex-forming rods 35 protruding radially in the centripetal direction from the upper or lower portion of the perforated plate 31 and having threads 351 formed on the outer periphery of the vortex-forming pipe part 3 are further characterized by being composed.

In the drawing, an example in which the vortex forming rod 35 is configured on the upper part of the perforated plate 31 is shown, but it may be configured on the lower part and may be formed while crossing up and down.

The reason why the vortex-forming rods 35 are formed in this way is that, as shown in the drawing, a plurality of longitudinal vortices are formed while passing through the perforated plate 31, and the longitudinal vortices collide with the plurality of vortex-forming rods 35 in the transverse direction A vortex is formed, and the longitudinal vortex and the transverse vortex collide with each other, further doubling the refinement efficiency of the raw water (W1) and the air (a).

That is, by forming a plurality of vortices in the longitudinal and transverse directions, vortexes are formed more three-dimensionally, and collisions and friction are induced in multiple directions. The number of microbubbles (W2) finally generated and discharged through the vortex-forming tube (3) This further doubles the miniaturization efficiency.

On the other hand, in the present invention, as shown in FIG. 8, the sludge incision 32 including the central tube 321 between the perforated plates 31 and the cutting blades 322 protruding radially from the central tube 321 in plurality An example in which is further included is shown.

That is, the sludge incision 32 is placed between the perforated plates 31, but the sludge incision 32 separates the upper and lower perforated plates 31 and pulverizes the sludge mixed in the fluid passing through the perforated plate 31 By doing so, the sludge removal efficiency can be increased and sludge deposited in the perforated hole 311 can be controlled.

The sludge that has passed through the perforated plate 31 is pulverized by the vortex and cut by the center tube 321 and each cutting blade 322 to control the deposition of the sludge, and the center tube 321 and cutting Even by the collision with the wing 322, water molecules and air bubbles can be made fine.

Preferably, it is reasonable that the upper and lower sludge incisions 32 cross each cutting blade 322.

Although the preferred embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concept of the present invention defined in the following claims are also made according to the present invention. falls within the scope of the rights of

1: device of the present invention 2: inlet pipe part
3: vortex forming pipe part 4: induction pipe part
5: air inlet 21: fluid inlet hole
30: bent portion 31: perforated plate
32: sludge incision 35: vortex forming bar
300: outlet 311: perforation
311-1 : thread

Claims (7)

An inlet pipe having an inner space and having a fluid inlet hole at the lower end;
a vortex-forming pipe part that communicates with the upper end of the inlet pipe part and includes a bent part extending from the upper end and bent so that an outlet is provided at one end;
an induction pipe part in which the outlet of the bent part is in communication with the side, the upper end of which is exposed above the water surface and the lower end is located below the water surface around the communication part; and
Including; an air injection unit communicating with the inlet pipe through an air injection line to inject air;
A perforated plate having a plurality of perforated holes is stacked at the lower end of the vortex-forming pipe part or the induction pipe part, and perforated holes facing up and down are formed in a zigzag pattern,
A plurality of vortex-forming rods protruding radially toward the centripetal direction from the upper or lower portion of the perforated plate and having threads formed on the outer periphery are further configured in the vortex-forming pipe part or the induction pipe part, and a plurality of longitudinal vortices are formed while passing through the perforated plate As the longitudinal vortex collides with the plurality of vortex-forming rods, transverse vortices are formed so that the longitudinal vortex and the lateral vortex collide with each other,
The vortex forming pipe part or the induction pipe part is further configured with perforated plates stacked with each other and sludge incisions interposed between the perforated plates,
The sludge incision includes a center tube and a plurality of cutting blades protruding radially along the outer periphery of the center tube, and the sludge openings adjacent to the top and bottom are configured in a direction in which each cutting blade intersects with each other, so that the upper and lower perforated plates are formed. Oxygen supply device through air supply with low power, characterized in that it controls the deposition of sludge in the perforated holes of each perforated plate while separating it and acting to crush the sludge mixed in the fluid passing through the perforated plate.
delete According to claim 1,
Oxygen supply device through air supply with low power, characterized in that a screw thread is formed on the inner periphery of the perforation of the perforated plate.
According to claim 3,
Oxygen supply device through air supply with low power, characterized in that the screw threads of the perforated holes adjacent to each other vertically or forward and backward in the perforated plate are configured in opposite directions of rotation.
According to claim 3,
Oxygen supply device through air supply with low power, characterized in that the perforation of the perforated plate is configured to have at least two or more different diameters.
delete delete

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