KR20220036183A - Nano bubble generator - Google Patents

Abstract

A nanobubble generating device is disclosed. The nanobubble generating device according to the present invention is formed with an inlet for a tank through which circulating water flows in and an outlet for a tank through which circulating water is discharged, a circulating water tank containing circulating water therein, connected to the circulating water tank, and discharged from the circulating water tank. It receives circulating water, generates nanobubbles, and delivers them to the circulating water tank, and includes a collision-inducing nanobubble generating unit that induces collisions of the circulating water to generate nanobubbles.

Description

Nano bubble generator {Nano bubble generator}

The present invention relates to a nanobubble generating device, and more specifically, to a nanobubble generating device that generates nanobubbles through collision.

In general, a bubble refers to a pocket of gas, that is, an air bubble, that exists in a liquid. Among these, nanobubbles are much smaller than regular bubbles, and are even smaller than microbubbles, which are several micrometers, and are so small that their size must be expressed in nanometers.

These nanobubbles have characteristics that are different from regular bubbles in the following three aspects.

First, normal bubbles of a size or diameter of several millimeters or more in the liquid float upward as soon as they are created and burst at the surface of the liquid. The reason why bubbles float upward is because the buoyancy of the bubbles is greater than the resistance of the liquid.

On the other hand, nanobubbles stay in liquid for a long time. This is because the buoyancy of nanobubbles is so small that they cannot overcome the resistance of the liquid.

Second, if the nanobubble stays in the liquid for a long time, the gas inside the nanobubble gradually dissolves through the surface into the liquid, gradually becoming smaller in size. Moreover, if the solubility of the gas inside the nanobubble in the liquid is high, the bubble itself may completely dissolve and disappear.

Third, the smaller the bubble size, the larger the ratio of surface area to volume, so the speed and efficiency at which the gas inside the nanobubble is dissolved in the liquid increases.

These three characteristics of nanobubbles enable various uses of nanobubbles.

From a wastewater treatment perspective, nanobubbles are much more efficient at transferring oxygen to liquid than traditional aeration methods because they have a small surface area and high solubility. Therefore, energy costs related to aeration can be reduced. Additionally, there is the advantage of much lower costs due to improved oxygen availability.

From the perspective of cooling tower applications, the cooling liquid injected with nanobubbles has a rapid temperature change rate. The rapid rate of temperature change of cooling liquids offers tremendous potential in cooling tower applications.

From a sterilization perspective, when nanobubbles shrink and collapse, reactive oxygen species (ROS) such as OH- and O3 are generated. Therefore, food sterilization using nanobubbles is a very safe and effective treatment method that can remove pathogenic organisms that spoil food and cause disease, and destroy volatile organic compounds in pesticide residues.

In this way, nanobubbles are used in various fields such as water purification, cleaning/washing, and sterilization, and a nanobubble generating device that can generate nanobubbles according to these various fields of application has been proposed.

However, the nanobubble generating device according to the prior art had a problem in that the amount of nanobubbles generated was not sufficient, and its structure was complicated, so it took a lot of cost to manufacture.

Republic of Korea Patent Publication No. 10-1125851 (2012.03.05.)

Therefore, the problem to be solved by the present invention is to provide a nanobubble generating device that can generate a large amount of nanobubbles and has a simple structure to reduce manufacturing costs.

According to one aspect of the present invention, a circulating water tank is formed with an inlet for a tank through which circulating water flows in and an outlet for a tank through which the circulating water is discharged, and the circulating water is accommodated therein; and a collision that is connected to the circulating water tank, receives the circulating water discharged from the circulating water tank, generates nanobubbles, and delivers them to the circulating water tank, causing collision of the circulating water to generate the nanobubbles. A nanobubble generating device including an inductive nanobubble generating unit may be provided.

The collision-induced nanobubble generating unit includes a case portion formed with a hollow interior and an inlet for the generating unit through which the circulating water flows in and an outlet for the generating unit through which the circulating water is discharged; and a collision inducing unit disposed inside the case unit and including a fixed compression rotation inductor that moves the circulating water toward the inner wall of the case unit and induces collision of the circulating water.

The collision inducing portion includes a collision plate connected to the inner wall of the case portion and having a passage hole through which the circulating water passes; and a collision tube coupled to the collision plate and into which the circulating water collides, wherein the fixed compression rotation inductor is coupled to the collision plate and causes the circulating water to flow toward the inner wall of the collision tube. It can guide the flow.

A plurality of the fixed compression rotation inductors may be provided and arranged to be spaced apart from each other.

The fixed compression rotation inductor includes a conical body portion formed in a shape whose cross-sectional area increases from the front to the back; And it is formed to protrude from the conical body part and may include a guide screw blade part that guides the flow direction of the circulating water.

A fitting groove for coupling into which the guide screw wing portion is fitted may be formed in the collision plate.

On the inner wall of the collision tube, a plurality of concave-convex members arranged to be spaced apart from each other may be formed to protrude.

The collision induction type nanobubble generating unit is disposed inside the case portion and may further include a support for the induction portion that supports the collision induction portion.

The collision-induced nanobubble generating unit includes a case portion having a hollow interior and an inlet for the generating unit through which the circulating water flows in and an outlet for the generating unit through which the circulating water is discharged; and a collision inducing unit disposed inside the case unit, which moves the circulating water toward the inner wall of the case unit to induce collision of the circulating water, and includes a rotary compression rotation inductor capable of relative rotation with respect to the case unit. You can.

The collision inducing portion includes a collision plate connected to the inner wall of the case portion and having a passage hole through which the circulating water passes; A collision tube connected to the inner wall of the case portion and into which the circulating water collides; A support for the guide portion connected to the inner wall of the case portion; and a rotary shaft rotatably coupled to the support for the guide part, to which the rotary compression and rotation inductor is coupled, wherein the rotary compression and rotation inductor flows the circulating water so that the circulating water flows in the direction of the inner wall of the collision tube. can guide you.

A plurality of the rotary compression rotation inductors may be provided and arranged to be spaced apart from each other.

The rotary compression rotation inductor includes a conical body formed in a shape whose cross-sectional area becomes wider from the front to the back; Guide screw blades protrude from the conical body and guide the flow direction of the circulating water; And it is connected to the conical body and may include an auxiliary collision part with which the circulating water collides.

The auxiliary impact unit includes: an auxiliary impact unit body coupled to the conical body unit; And it is formed to protrude from the outer peripheral surface of the auxiliary impact unit body and may include a plurality of protruding protrusions arranged to be spaced apart from each other.

On the inner wall of the collision tube, a plurality of concave-convex members arranged to be spaced apart from each other may be formed to protrude.

A plurality of flow holes through which the circulating water passes are formed in the support for the guide part, and the flow holes may be arranged to be radially spaced apart from each other based on the central area of the support for the guide part.

Embodiments of the present invention receive circulating water discharged from a circulating water tank, generate nanobubbles, and deliver circulating water containing nanobubbles to the circulating water tank, while inducing collision of the circulating water to generate nanobubbles. By providing a collision-inducing nanobubble generating unit, the amount of nanobubbles generated can be increased and manufacturing costs can be reduced through a simple structure.

1 is a diagram showing a nanobubble generating device according to a first embodiment of the present invention.
FIG. 2 is a diagram illustrating the collision-induced nanobubble generating unit of FIG. 1.
Figure 3 is a diagram showing a collision-inducing nanobubble generating unit of the nanobubble generating device according to the second embodiment of the present invention.
Figure 4 is a diagram showing a collision inducing part of the nanobubble generating device according to the third embodiment of the present invention.
Figure 5 is a diagram showing the operating state of the collision induction unit of Figure 4.

In order to fully understand the present invention, its operational advantages, and the objectives achieved by practicing the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

However, in explaining the present invention, descriptions of already known functions or configurations will be omitted to make the gist of the present invention clear.

FIG. 1 is a diagram showing a nanobubble generating device according to a first embodiment of the present invention, and FIG. 2 is a diagram showing a collision-inducing nanobubble generating unit of FIG. 1. In Figure 2, the arrow indicates the flow direction of the circulating water.

As shown in FIGS. 1 and 2, the nanobubble generating device according to this embodiment includes a circulating water tank 110, a collision-induced nanobubble generating unit 120, a circulating water pump (WP), It includes a venturi injector (VT), a gas pump (GP), and a gas storage tank (GT).

Circulating water is accommodated in the circulating water tank 110. The circulating water discharged from the circulating water tank 110 passes through the collision-induced nanobubble generating unit 120 to contain nanobubbles, and the circulating water containing nanobubbles flows back into the circulating water tank 110. For the inflow and discharge of the above-mentioned circulating water, a tank inlet 111 and a tank outlet 112 are formed in the circulating water tank 110. In addition, the circulating water tank 110 is formed with a gas inlet 113 through which gas, described later, flows in, and a gas outlet 114 through which gas flows out.

The circulating water pump (WP) is connected to the circulating water tank 110 through a circulating water connection hose (not shown). The circulating water pump (WP) provides pumping force so that the circulating water discharged from the circulating water tank 110 flows back to the circulating water tank 110 through the collision-inducing nanobubble generating unit 120.

In this embodiment, the connecting hose for circulating water (not shown) not only connects the circulating water pump (WP) and the circulating water tank 110, but also connects the circulating water pump (WP) and the venturi injector (VT), and connects the venturi injector ( VT) and the collision-inducing nanobubble generating unit 120 are connected, and the collision-inducing nanobubble generating unit 120 and the circulating water tank 110 are connected. A fitting may be made to prevent leakage, etc. from the connection through such a connecting hose for circulating water (not shown).

A venturi injector (VT) sucks in gas through the flow of circulating water passing inside. This venturi injector (VT) inhales gas by using the phenomenon of pressure dropping when the flow rate increases according to Bernoulli's principle, and the detailed structure is omitted for convenience of explanation.

The gas pump (GP) is connected to the venturi injector (VT) through a gas connection hose (not shown). The gas pump (GP) provides pumping force so that the gas discharged from the circulating water tank 110 flows back to the venturi injector (VT). The gas connection hose (not shown) connecting the venturi injector (VT) and the gas pump (GP) is equipped with a regulator (M) that maintains uniform gas pressure and a backflow prevention unit (P) that prevents backflow of gas. connected.

In this embodiment, the gas connection hose (not shown) not only connects the venturi injector (VT) and the gas pump (GP), but also connects the gas pump (GP) and the circulating water tank 110.

The gas supplied to the circulating water tank 110 is stored in the gas storage tank (GT). The gas stored in the gas storage tank (GT) may be ozone gas, but this is only an example and various types of gas may be used as the gas supplied to the circulating water tank 110. The gas storage tank (GT) may be connected to the circulating water tank 110 through a gas connection hose (not shown), and the regulator (M) may be connected to the gas connection hose (not shown).

Meanwhile, as shown in FIG. 1, the gas discharged from the circulating water tank flows back into the circulating water tank 110 together with the circulating water through the venturi injector (VT) and the collision-inducing nanobubble generating unit 120. In this way, the nanobubble generator according to this embodiment can reduce gas consumption by initially supplying gas to the circulating water tank 110 and then continuously circulating and reusing the supplied gas.

Meanwhile, the collision-induced nanobubble generating unit 120 receives circulating water and gas from a venturi injector (VT), generates nanobubbles, and supplies circulating water containing nanobubbles to the circulating water tank 110. This collision-inducing nanobubble generating unit 120 rotates the received circulating water and induces collision of the circulating water to generate nanobubbles.

As shown in FIG. 2, the collision-induced nanobubble generating unit 120 according to the present embodiment is formed with a hollow interior and includes a case portion 130 through which circulating water flows through the hollow interior, and a case portion ( It includes a collision inducing part 140 that is disposed inside the 130 and induces collision of the circulating water, and a support for the inducing part 150 that is disposed inside the case part 130 and supports the collision inducing part 140.

As shown in FIG. 2, the case portion 130 includes a case body 131 having an inlet 131a for a generating unit through which circulating water flows in at one end and an opening at the other end, and a case body 131. It is coupled to and includes a case closure 132 in which an outlet 132a for the production unit through which circulating water is discharged is formed.

The case body 131 is formed in a circular rod shape, and the inside of the case body 131 is hollow. On the inner peripheral surface of the other end of the case body 131, threads that can be screwed to the threads formed in the case finishing portion 132 are formed.

The case closure 132 is screwed to the case body 131. For this screw connection, a thread is formed on one outer peripheral surface of the case finishing portion 132 that is screwed to a thread formed on the inner peripheral surface of the case body 131.

The front end of the case closure 132 is connected to the guide support 150 to press the collision guide 140. As described above, the case finishing part 132 is screwed to the case body 131, so that the front end of the case finishing part 132 can be moved in the forward and backward directions within the case body 131 by rotation, and this By moving, the case closure portion 132 can advance the guide portion support 150 and pressurize the collision induction portion 140. Due to this pressure, the movement of the collision inducing part 140 inside the case body 131 is restricted.

In this way, the nanobubble generating device according to this embodiment is. The case finishing part 132 presses the collision inducing part 140 and fixes the collision inducing part 140, so that screws or welding are not required to fix the collision inducing part 140, which has the advantage of being easy to manufacture and assemble. there is.

As shown in FIG. 2, the collision inducing part 140 according to the present embodiment is connected to the inner wall of the case part 130 and has a passing hole 142a through which circulating water passes, and a collision plate 142, It includes a collision tube 143 that is coupled to the plate 142 and collides with the circulating water, and a fixed compression rotation inductor 141 that moves the circulating water toward the inner wall of the collision tube 143 to induce collision of the circulating water. . As shown in FIG. 2, a plurality of collision plates 142, collision tubes 143, and fixed compression rotation guides 141 are provided and arranged to be spaced apart from each other.

The collision plate 142 is formed in a circular disk shape. The outer peripheral surface of the collision plate 142 is connected to the inner wall surface of the case body 131. A passage hole 142a through which circulating water passes is formed in the central area of the collision plate 142.

In this embodiment, a coupling fitting groove 142b is formed in the collision plate 142 into which the distal end region of the later-described guide screw wing portion 141b of the fixed compression rotation inductor 141 is fitted. A plurality of such coupling fitting grooves 142b are formed and arranged to be radially spaced apart. In this embodiment, the coupling fitting groove 142b may be formed on both the front and rear sides of the collision plate 142.

As shown in FIG. 2, the collision tube 143 is formed in the shape of a circular pipe with a hollow interior. At the left and right ends of the collision tube 143, coupling fitting protrusions 143b are formed to fit into coupling fitting grooves 142b.

In addition, a plurality of uneven members 143a, which are spaced apart from each other, are formed to protrude on the inner wall of the collision tube 143. Circulating water guided by the fixed compression rotation inductor 141 collides with these uneven members 143a, thereby generating a large amount of nanobubbles.

The fixed compression rotation inductor 141 is coupled to the collision plate 142. This fixed compression rotation inductor 141 guides the flow of circulating water and causes the circulating water to collide with the uneven members 143a of the collision tube 143. That is, the fixed compression rotation inductor 141 guides the flow of circulating water so that the circulating water flows toward the inner wall of the collision tube 143.

As shown in FIG. 2, the fixed compression rotation inductor 141 according to this embodiment has a conical body portion 141a formed in a shape whose cross-sectional area increases from the front to the rear, and a conical body portion 141a. It is formed to protrude and includes guide screw wings 141b that guide the flow direction of the circulating water.

The conical body 141a is formed in a cone shape with a cross-sectional area that increases from the front to the back, so that the circulating water hitting the conical body 141a naturally flows toward the inner wall of the collision tube 143. In addition, an insertion groove 141c into which the support bar 100 for spacing is inserted is formed on each of the front and rear sides of the conical body portion 141a.

The guide screw wing portion 141b is formed to protrude from the conical body portion 141a. These guide screw wings (141b) are formed by bending in a curve like a screw, so that the circulating water hitting the conical body (141a) is guided to the guide screw wings (141b) to the circumference of the conical body (141a). It is rotated in this direction so that it flows in the direction of the inner wall of the collision tube (143).

The above-mentioned fixed compression rotation inductor 141 is fixed without rotating with respect to the case portion 130 during the nanobubble generation process. Therefore, the rotational force of the circulating water can be increased through the guide screw wing portion 141b, and accordingly, the circulating water can strongly collide with the inner wall surface of the collision tube 143.

The guide unit support 150 is disposed inside the case unit 130. This support for the guidance unit 150 supports the collision guidance unit 140. As shown in FIG. 2, the support 150 for an induction unit according to this embodiment includes a support body 151 formed in a circular ring shape, and a first bar (151) coupled to the inner wall of the support body 151. 152) and a second bar 153 coupled to the inner wall of the support body 151 and connected to the first bar 152.

The support body 151 is formed in a circular ring shape, and circulating water passes through the inside of the support body 151. The outer peripheral surface of the support body 151 is connected to the inner peripheral surface of the case body 131, the front of the support body 151 is connected to the rear of the collision tube 143, and the rear of the support body 151 is a case closure ( It is connected to the front end of 132).

The first bar 152 and the second bar 153 are coupled to the inner wall of the support body 151. The first bar 152 and the second bar 153 are arranged to cross each other to form a cross shape. These first bars 152 and second bars 153 are connected to the rear of the fixed compression rotation inductor 141.

Hereinafter, the operation of the nanobubble generating device of this embodiment will be described with reference to FIGS. 1 and 2, focusing on the collision-inducing nanobubble generating unit 120.

First, circulating water containing gas passes through the venturi injector (VT) and flows into the collision-induced nanobubble generating unit 120 through the generating unit inlet 131a.

The introduced circulating water naturally flows toward the inner wall of the collision tube 143 along the surface of the conical body 141a. In addition, the circulating water flowing along the surface of the conical body portion 141a is guided to the guide screw blade portion 141b and rotates in the circumferential direction of the conical body portion 141a in the direction of the inner wall of the collision tube 143. It flows and collides with the uneven members 143a formed on the inner wall of the collision tube 143. The circulating water flowing toward the inner wall of the collision tube 143 while rotating in the circumferential direction of the conical body 141a causes many collisions with the uneven members 143a, thereby generating a large amount of nanobubbles.

In this way, the nanobubble generator according to this embodiment receives the circulating water discharged from the circulating water tank 110, generates nanobubbles, and delivers them to the circulating water tank 110, but the generation of nanobubbles is caused by collision of the circulating water. By providing a collision-inducing nanobubble generating unit 120 that induces , the amount of nanobubbles generated can be increased and manufacturing costs can be reduced through a simple structure.

Figure 3 is a diagram showing a collision-inducing nanobubble generating unit of the nanobubble generating device according to the second embodiment of the present invention.

Below, a second embodiment of the present invention will be described. Compared to the first embodiment, this embodiment differs only in the configuration of the collision-inducing nanobubble generating unit 220, and other configurations are the same as those of the first embodiment of FIGS. 1 and 2, so hereinafter The different configurations are explained. In Figure 2, the arrow indicates the flow direction of the circulating water.

The collision-induced nanobubble generation unit 220 according to this embodiment is a case in which an inlet 131a for the generation unit through which circulating water flows in and an outlet 132a for the generation unit through which circulating water is discharged are formed and the inside is hollow. It is disposed inside the unit 130 and the case unit 130 and moves the circulating water toward the inner wall of the case unit 130 to induce collision of the circulating water, but is a rotary compression capable of relative rotation with respect to the case unit 130. It includes a collision induction unit 240 including a rotation guide 241.

In this embodiment, the case portion 130 is configured almost the same as that of the first embodiment, so a detailed description of the case portion 130 will be omitted.

As shown in FIG. 3, the collision inducing part 240 is connected to the inner wall of the case part 130 and includes a collision plate 242 formed with a passage hole 242a through which circulating water passes, and a case part 130. A collision tube 243 connected to the inner wall and through which the circulating water collides, a rotary compression rotation inductor 241 that guides the flow of the circulating water so that the circulating water flows in the direction of the inner wall of the collision tube 243, and a case portion 130. ) includes a support for the guide portion 244 connected to the inner wall of the guide portion, and a rotation shaft 245 that is rotatably coupled to the support for the guide portion 244 and to which the rotary compression rotation guide 241 is coupled. In this embodiment, a plurality of collision plates 242, collision tubes 243, and rotary compression rotation inductors 241 are provided and arranged to be spaced apart from each other.

The collision plate 242 is formed in a circular disk shape. The outer peripheral surface of the collision plate 242 is connected to the inner wall surface of the case body 131. A passage hole 242a through which circulating water passes is formed in the central area of the collision plate 242.

As shown in FIG. 3, the collision tube 243 is formed in the shape of a circular pipe with a hollow interior. On the inner wall of the collision tube 243, a plurality of concave-convex members 243a are formed to protrude and are spaced apart from each other. Circulating water collides with these uneven members 243a and generates a large amount of nanobubbles.

The rotary compression rotation inductor 241 guides the flow of circulating water so that the circulating water flows toward the inner wall of the collision tube 243.

As shown in FIG. 3, the rotary compression rotation inductor 241 according to the present embodiment includes a conical body portion 241a formed in a shape whose cross-sectional area increases from the front to the rear, and a conical body portion 241a. It is formed to protrude and includes a guide screw wing portion 241b that guides the flow direction of the circulating water, and an auxiliary collision portion 241c connected to the conical body portion 241a and with which the circulating water collides.

The conical body 241a is formed in a cone shape with a cross-sectional area that increases from the front to the back, so that the circulating water hitting the conical body 241a naturally flows toward the inner wall of the collision tube 243. Additionally, a through hole (not shown) through which the rotation axis 245 passes is formed in the conical body portion 241a.

The guide screw wing portion 241b is formed to protrude from the conical body portion 241a. These guide screw wings (241b) are formed by bending in a curve like a screw, so that the circulating water hitting the conical body (241a) is guided to the guide screw wings (241b) to the circumference of the conical body (241a). It is rotated in this direction so that it flows in the direction of the inner wall of the collision tube (243).

The auxiliary collision part 241c is coupled to the conical body part 241a. This auxiliary collision part 241c collides with the circulating water to generate additional nanobubbles. As shown in FIG. 3, the auxiliary collision unit 241c according to the present embodiment has an auxiliary collision unit body 241d coupled to the conical body 241a, and protrudes from the outer peripheral surface of the auxiliary collision unit body 241d. It is formed and includes a plurality of protruding protrusions 241e arranged to be spaced apart from each other.

The auxiliary impact unit body 241d is formed in a circular disk shape. A through hole (not shown) through which the rotation axis 245 passes is formed in the central area of the auxiliary collision body 241d.

The circulating water flowing toward the inner wall of the collision tube 243 by the conical body portion 241a and the guide screw blade portion 241b not only collides with the uneven member 243a of the collision tube 243, It also collides with the protruding protrusion 241e of the auxiliary collision part 241c, generating a large amount of nanobubbles.

The support for the guide part 244 is connected to the inner wall of the case part 130. As shown in FIG. 3, the guide unit supports 244 are provided as a pair and arranged to be spaced apart from each other with the collision tube 243 and the rotary compression rotation guide 241 in between.

The support 244 for the guide section according to this embodiment is formed in a circular disk shape. The outer circumferential surface of the guide support 244 is connected to the inner circumferential surface of the case body 131. A plurality of flow holes 244a through which circulating water passes are formed in the guide support 244. The flow holes 244a are arranged to be radially spaced apart from each other based on the central area of the guide support support 244. In addition, a bearing (BR) that rotatably supports the rotating shaft 245 is coupled to the central region of the guide support support 244.

The rotation shaft 245 is rotatably coupled to the guide support 244 through a bearing BR. A rotary compression rotation inductor 241 is coupled to this rotation shaft 245.

In addition, the collision induction unit 240 according to this embodiment further includes a spacing ring 270 for adjusting the position of the support unit 244 for the induction unit. As shown in FIG. 3, this spacing ring 270 is disposed between the front inner wall surface of the case body 131 and the guide part support 244, and is located between the guide part support 244 and the collision plate 242. placed in between. In this embodiment, the spacing ring 270 is formed in the shape of a circular pipe with a hollow interior.

The above-described rotary compression rotation inductor 241 rotates relative to the case portion 130 during the nanobubble generation process. At this time, the force that rotates the rotary compression rotation inductor 241 is a resistance force applied to the guide screw blade portion 241b according to the flow direction of the circulating water. When the rotary compression rotary inductor 241 rotates, many collisions between the protruding protrusions 241e and the circulating water occur due to the rotation of the auxiliary collision part 241c, thereby generating a large amount of nanobubbles.

In this way, the nanobubble generator according to this embodiment receives the circulating water discharged from the circulating water tank 110, generates nanobubbles, and delivers them to the circulating water tank 110, but collides with the circulating water by rotation. By providing the collision portion 241c, the amount of nanobubbles generated can be increased.

Figure 4 is a diagram showing the collision induction unit of the nanobubble generating device according to the third embodiment of the present invention, and Figure 5 is a diagram showing the operating state of the collision induction unit of Figure 4.

Below, a third embodiment of the present invention will be described. Compared to the first embodiment, this embodiment differs only in the configuration of the collision-inducing nanobubble generating unit 320, and other configurations are the same as those of the first embodiment of FIGS. 1 to 3, so hereinafter The different configurations are explained.

The collision-induced nanobubble generation unit 320 according to this embodiment is formed with an inlet (not shown) for the generation unit through which circulating water flows in and an outlet (not shown) for the generation unit through which circulating water is discharged, and the inside is hollow. A collision induction unit 340 including a case portion 130 and a first propeller-type collision plate 341 and a second propeller-type collision plate 342 disposed inside the case portion 130 and colliding with circulating water. Includes.

In this embodiment, the case portion 130 is configured almost the same as that of the first embodiment, so a detailed description of the case portion 130 will be omitted.

The first propeller-type collision plate 341 is formed to be inclined obliquely in one direction, which is coupled to the first collision plate frame 341a, which is formed in a circular ring shape, and the inner peripheral surface of the first collision plate frame 341a, to provide circulation water. It includes a first inclined wing (341b) that changes the flow direction.

The second propeller-type collision plate 342 is formed to be inclined obliquely in one direction, coupled to the second collision plate frame 342a, which is formed in a circular ring shape, and the inner peripheral surface of the second collision plate frame 342a, It includes a second inclined wing (342b) that changes the flow direction. In this embodiment, the second inclined blade 342b has an inclined direction opposite to the first inclined direction.

A plurality of first propeller-type collision plates 341 and second propeller-type collision plates 342 are provided and arranged alternately. That is, as shown in FIG. 5, the first propeller-type collision plate 342 is arranged between the first propeller-type collision plate 341 and the first propeller-type collision plate 341. The plates 341 and the second propeller-type collision plates 342 are arranged alternately.

In addition, the collision inducing unit 340 of this embodiment is disposed between the first propeller-type collision plate 341 and the second propeller-type collision plate 342 to cause the first propeller-type collision plate 341 and the second propeller-type collision plate 342. A spacing ring (not shown) is provided to space the plates 342 apart by a predetermined distance.

The spacing ring (not shown) is formed in a circular ring formation. A plurality of grooves (not shown) are formed on the inner peripheral surface of this spacing ring (not shown).

As such, the collision inducing unit 340 of the present embodiment includes a first propeller-type collision plate 341 and a second propeller having first inclined blades 341b and second inclined blades 342b whose inclination directions are opposite to each other. By providing the type collision plate 342, the circulating water can be made to collide with the first inclined blade 341b and the second inclined blade 342b while changing the flow direction of the circulating water (arrow direction in FIG. 5) in the zigzag direction. It can generate a large amount of nanobubbles.

Although this embodiment has been described in detail with reference to the drawings, the scope of this embodiment is not limited to the drawings and description.

As such, the present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and changes can be made without departing from the spirit and scope of the present invention. Accordingly, such modifications or variations should be considered to fall within the scope of the patent claims of the present invention.

110: Circulating water tank 111: Inlet for tank
112: outlet for tank
120, 220, 320: Collision-induced nanobubble generation unit
130: case part 140, 240, 340: collision induction part
141: Fixed compression rotation inductor 141a, 241a: Conical body portion
141b, 241b: Screw wings for guide
142, 242: Collision plate 142a, 242a: Pass hole
142b: Fitting groove for coupling 143, 243: Collision tube
143a, 243a: uneven member 150, 244: support for guide section
241c: auxiliary collision part 241d: auxiliary collision part body
241e: protrusion 245: rotation axis
341: first propeller-type collision plate 341a: first collision plate frame
341b: first inclined wing 342: second propeller type collision plate
342a: second collision plate frame 342b: second inclined wing
WP: Circulating water pump VT: Venturi injector
GP: Gas pump GT: Gas storage tank
M: Regulator P: Backflow prevention unit

Claims (15)

a circulating water tank having an inlet for the tank through which the circulating water flows in and an outlet for the tank through which the circulating water is discharged, and accommodating the circulating water therein; and
It is connected to the circulating water tank, receives the circulating water discharged from the circulating water tank, generates nanobubbles, and delivers them to the circulating water tank. Collision induction that induces collision of the circulating water to generate the nanobubbles. A nanobubble generating device including a type nanobubble generating unit. According to paragraph 1,
The collision-induced nanobubble generating unit,
a case portion formed with a hollow interior and an inlet for the production unit through which the circulating water flows in and an outlet for the production unit through which the circulating water is discharged; and
A nanobubble generating device comprising a collision inducing unit disposed inside the case unit and having a fixed compression rotation inductor that moves the circulating water toward the inner wall of the case unit and induces collision of the circulating water. According to paragraph 2,
The collision induction unit,
a collision plate connected to the inner wall of the case portion and having a passage hole through which the circulating water passes; and
It is coupled to the collision plate and includes a collision tube through which the circulating water collides,
The fixed compression rotary inductor,
A nanobubble generating device coupled to the collision plate and guiding the flow of the circulating water so that the circulating water flows toward the inner wall of the collision tube. According to paragraph 2,
A nanobubble generating device, characterized in that the fixed compression rotation inductor is provided in plural numbers and arranged to be spaced apart from each other. According to paragraph 3,
The fixed compression rotary inductor,
A conical body formed in a shape whose cross-sectional area becomes wider from the front to the back; and
A nanobubble generating device that protrudes from the conical body and includes guide screw blades that guide the flow direction of the circulating water. According to clause 5,
A nanobubble generating device, characterized in that the collision plate is formed with a coupling groove into which the guide screw wing is fitted. According to clause 5,
A nanobubble generating device, characterized in that a plurality of uneven members arranged to be spaced apart from each other protrude from the inner wall of the collision tube. According to paragraph 2,
The collision-induced nanobubble generating unit is,
A nanobubble generating device disposed inside the case portion and further comprising a support for an induction portion that supports the collision induction portion. According to paragraph 1,
The collision-induced nanobubble generating unit is,
a case portion having a hollow interior and an inlet for the production unit through which the circulating water flows in and an outlet for the production unit through which the circulating water is discharged; and
Nano is disposed inside the case part and includes a collision inducing part that moves the circulating water toward the inner wall of the case part to induce collision of the circulating water and includes a rotary compression rotation inductor capable of relative rotation with respect to the case part. Bubble generator. According to clause 9,
The collision induction unit,
a collision plate connected to the inner wall of the case portion and having a passage hole through which the circulating water passes;
a collision tube connected to the inner wall of the case portion and into which the circulating water collides;
A support for the guide portion connected to the inner wall of the case portion; and
It is rotatably coupled to the support for the guide unit and includes a rotation shaft to which the rotary compression rotation guide is coupled,
The rotary compression rotary inductor is,
A nanobubble generating device characterized in that it guides the flow of the circulating water so that the circulating water flows toward the inner wall of the collision tube. According to clause 9,
A nanobubble generating device, characterized in that the rotary compression rotation inductor is provided in plural numbers and arranged to be spaced apart from each other. According to clause 10,
The rotary compression rotary inductor is,
A conical body formed in a shape whose cross-sectional area becomes wider from the front to the back;
Guide screw blades protrude from the conical body and guide the flow direction of the circulating water; and
A nanobubble generating device connected to the conical body and including an auxiliary collision part with which the circulating water collides. According to clause 12,
The auxiliary collision part,
an auxiliary collision body coupled to the conical body; and
A nanobubble generating device that protrudes from the outer peripheral surface of the auxiliary impact unit body and includes a plurality of protruding protrusions arranged to be spaced apart from each other. According to clause 10,
A nanobubble generating device, characterized in that a plurality of concave-convex members arranged to be spaced apart from each other protrude from the inner wall of the collision tube. According to clause 10,
A plurality of flow holes through which the circulating water passes are formed in the support for the guide section,
A nanobubble generating device, characterized in that the flow holes are arranged radially spaced apart from each other based on the central area of the support for the guide part.