KR101225491B1 - Ballast water treatment apparatus discharging using micro bubble - Google Patents

Abstract

The present invention relates to a ballast water sterilization treatment apparatus using micro-bubbles, the ballast water inlet mainline to form a path through which the ballast water flows from the seawater, the ballast water into the ballast tank; And a micro bubble generating unit coupled to the ballast water inflow main line and providing micro bubbles to the ballast water inflow main line after generating micro bubbles. As a result, various problems due to the use of the ballast water can be effectively solved, and in particular, the microbubble can remain in the ballast water for a long time, thereby improving the treatment efficiency of the ballast water.

Description

Ballast water treatment apparatus discharging using micro bubble

The present invention relates to a ballast water sterilization treatment apparatus using micro bubbles, and more particularly, it is possible to effectively solve various problems caused by the use of ballast water, in particular, it is possible to long-last micro bubbles in the ballast water The present invention relates to a ballast water sterilization treatment apparatus using microbubbles, which can further improve the treatment efficiency of ballast water.

Ships are widely used for transporting large quantities of goods at once or for military use.

If there are not a lot of people, equipment, and things (called cargo in general) loaded, the ship will not sink enough underwater and can be easily shaken by small waves, and even propellers and rudders will not be submerged enough. It will not work efficiently.

Accordingly, the ship unloading the cargo is operated in a state containing the sea water, that is, ballast water (ballast water) in the ballast tank (ballast tank) in order to maintain the balance and increase the stability. As a result, the ballast water acts as a weight to adjust the draft and trim of the ship.

On the other hand, ships arriving in ports of other regions or other countries with ballast water in ballast tanks discharge ballast water in the sea at the destination to reduce the weight of the ship and reload the cargo.

As such, ballast water is used to maintain the balance and stability of the ship, but on the one hand, the ballast water is stored in the ballast tank for a long time, and the ballast water also serves to mix the seawater of the seas belonging to different regions. It cannot be denied, and for this reason there are a number of hazards that can be caused:

First, since the ballast water is stored in the ballast tank for a long time, various germs can grow.

Second, it can cause the destruction of ecosystems by mixing foreign marine species of the seas belonging to different regions. For example, organisms or pathogens in a specific seawater contained in ballast water are transferred to a different sea area by a vessel containing ballast water, and sprinkled on the oceans of that area, whereby organisms of different ecosystems are mixed and disturbed. In addition to this, there is a risk of causing significant damage to coastal industries and other commercial activities or resources.

Therefore, although various alternatives have been proposed to solve these shortcomings, the current situation is somewhat insufficient to be commercialized due to insufficient investment efficiency or treatment efficiency of ballast water relative to facility size.

Therefore, as an alternative to improve the efficiency of treatment of ballast water compared to the investment cost or the size of the facility, the use of micro bubbles in the treatment of ballast water is considered, but when it is desired to use micro bubbles, the micro bubbles must remain in the ballast water for a long time. As this effect can be provided, research on this is required.

An object of the present invention is to effectively solve various problems caused by the use of ballast water, and in particular, it is possible to maintain the microbubble in the ballast water for a long time, so that the ship's equilibrium using microbubbles can further improve the treatment efficiency of the ballast water. It is to provide a water sterilization treatment apparatus.

The object of the present invention is to provide a ballast water flow path from the seawater, and the ballast water inflow main line for introducing the ballast water into the ballast tank; And a microbubble generating unit coupled to the ballast water inlet main line, the microbubble generating unit providing the microbubble to the ballast water inlet mainline after generating microbubbles. Achieved by the device.

Here, the micro bubble generating unit may be arranged in plural at equal intervals along the circumferential direction of the ballast water inlet main line.

The micro bubble generating unit may be coupled along the radial direction of the ballast water inlet main line so that the micro bubbles may be provided along the radial direction of the ballast water inlet main line.

The microbubble generating unit may be coupled along the tangential direction of the ballast water inflow mainline so that the microbubble may be provided along the tangential direction of the ballast water inflow mainline.

A branch line branched from the ballast water inflow main line may be provided in one region of the ballast water inflow main line, and the ballast water flowing through the branch line may be provided to the micro bubble generating unit.

The microbubble generating unit includes an air inlet through which air as ozone is introduced, a water inlet through which water is introduced at a position different from the air inlet, and the microbubble is formed by interaction of the air with the water. An apparatus body having a water discharge portion through which the generated water is discharged; And a rotation induction guide provided in the apparatus main body to guide rotation of the water introduced into the apparatus main body through the water inlet to guide the air toward the air introduced through the air inlet.

The rotation induction guide may include at least one guide wall disposed along an imaginary line connecting the air inlet and the water outlet while allowing water flow from the water inlet to the water outlet.

The at least one guide wall has one end fixed to an inner wall of one side of the device body in which the water discharge part is formed while surrounding the water discharge area, and the other end of the guide wall body is the other inner wall surface of the device body in which the air inlet is formed. A first guide wall spaced from the first guide wall; And a spaced apart interval between the first guide wall and the first guide wall, the one end of which is fixed to the other inner wall of the apparatus main body in which the air inlet is formed, and the other end of the first guide wall. It may include a second guide wall spaced apart from the inner wall surface of one side of the device body is formed water discharge.

At least one of the first guide wall and the second guide wall may be formed as a tubular body, and at least one wall surface of the first guide wall and the second guide wall may form an inclined slope.

The micro bubble generating unit may further include a porous air guide member coupled to the air inlet region.

The porous air guide member may be a cylindrical or conical pipe in which a plurality of fine pores are formed on the surface.

The device body and the guide wall body may be provided as a hollow body in which air flows therein, and a plurality of fine pore holes may be further formed on at least one wall surface of the device body and the guide wall body.

The apparatus may further include a collision nozzle unit connected to the water outlet region and including a collision member configured to collide with an air mixed with water and microbubbles through the water outlet to double the generation of fine bubbles.

The impingement nozzle unit may include: a first diffusion part formed in an inlet region with respect to a direction in which the air flows, and gradually increasing in diameter toward a rear end thereof; A first extension part connected to a rear end of the first diffusion part and having the collision member disposed therein; A second diffusion part connected to a rear end of the first extension part and gradually increasing in diameter toward a rear end of the first extension part; And a second extension part connected to a rear end of the second diffusion part and maintaining the largest diameter of the second diffusion part by a predetermined length section.

The impingement nozzle unit may further include an inclined portion connecting the first diffusion portion and the first extension portion to be inclined mutually between the first diffusion portion and the first extension portion.

According to the present invention, various problems caused by the use of the ballast water can be effectively solved, and in particular, the micro bubbles can be left in the ballast water for a long time, thereby improving the treatment efficiency of the ballast water.

1A is a schematic structural diagram of an apparatus for sterilizing ballast water using a microbubble according to a first embodiment of the present invention;
Figure 1b is a structural diagram showing an embodiment of the portion S shown in Figure 1a,
Figure 1c is a view for explaining a modification of the ballast water sterilization treatment apparatus using a microbubble according to an embodiment of the present invention,
Figure 2a is an enlarged perspective view showing that the micro bubble generating unit is mounted on the ballast water inlet main line,
2B is a cross sectional view of FIG. 2A,
3A to 3C are internal perspective perspective views, cutaway perspective views, and plan views of the microbubble generating unit applied to FIGS. 1 and 2, respectively;
4 to 10b are views showing various modifications to the micro bubble generating unit,
11 is a cross-sectional view of a region of a ballast water inflow mainline in a ballast water sterilization apparatus using microbubbles according to a second embodiment of the present invention;
12 is a cross-sectional view of a region of a ballast water inflow main line in a ballast water sterilization apparatus using microbubbles according to a third embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In this specification, when an element is referred to as being on another element, it may be directly formed on another element, or a third element may be interposed therebetween. Also in the figures, the thickness of the components is exaggerated for an effective description of the technical content.

Embodiments described herein will be described with reference to cross-sectional views and / or plan views that are ideal illustrations of the present invention. In the drawings, the thicknesses of films and regions are exaggerated for effective explanation of technical content. Therefore, the shape of the exemplary diagram may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the shapes that are produced according to the manufacturing process. For example, the etched area shown at right angles may be rounded or may have a shape with a certain curvature. Thus, the regions illustrated in the figures have attributes, and the shapes of the regions illustrated in the figures are intended to illustrate specific forms of regions of the elements and are not intended to limit the scope of the invention. Although the terms first, second, etc. have been used in various embodiments of the present disclosure to describe various components, these components should not be limited by these terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprises" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, various specific details are set forth in order to explain the invention more specifically and to help understand. However, it will be appreciated by those skilled in the art that the present invention may be understood by those skilled in the art without departing from such specific details. In some cases, it is mentioned in advance that parts of the invention which are commonly known in the description of the invention and which are not highly related to the invention are not described in order to prevent confusion in explaining the invention without cause.

-First embodiment of the ballast water sterilization treatment apparatus of the present invention

Figure 1a is a schematic structural diagram of the ballast water sterilization treatment apparatus using a micro bubble according to a first embodiment of the present invention, Figure 2a is a micro bubble generating unit is mounted on the ballast water inlet mainline shown in Figure 1a 2B is a cross-sectional view of FIG. 2A, and FIGS. 3A to 3C are perspective views, cutaway views, and plan views, respectively, of the microbubble generating unit applied to FIGS. 1A and 2.

As shown in these figures, the ballast water sterilization apparatus of the present embodiment includes a ballast water inflow main line 210 and a micro bubble generating unit 100a coupled to the ballast water inflow main line 210. .

The ballast water inflow main line 210 forms a path through which the ballast water from the seawater flows, and is a kind of pipe for introducing the ballast water into the ballast tank 230.

Ballast tank 230 is a place where the ballast water is stored for the balance of the ship. The volume of the ballast tank 230 may be determined according to the volume or volume of the vessel. Since the ballast water in the ballast tank 230 should be discharged as necessary, a pump or the like may be provided in the discharge line of the ballast tank 230.

Although not shown in the drawings, a neutralizer may be provided around the ballast tank 230 to provide a neutralizing liquid into the ballast tank 230, and the neutralizer may be operated based on a signal by the TRO sensor. In this case, the TRO sensor can sense that the neutralizing liquid from the neutralizer is supplied to the ballast water so that the TRO concentration of the discharged ballast water is, for example, 0.02 mg / l or less.

The ballast water inflow main line 210 is formed with a first line 210a joined to a central first valve V1 on both sides of the ballast tank 230, as shown by a dark arrow in FIG. 1A. The second line 210b connecting the first valve V1 and the second valve V2 on the upper side, and the third line 210c facing the ballast tank 230 on the opposite side while diverging from the second valve V2 again. It may be provided.

The first line 210a, which may be provided symmetrically with each other, is provided with a strainer S, a valve V3, a ballast pump P, a valve V4, and the like along the direction in which the ballast water moves. .

The second line 210b is provided with a pump P on an area of the branch line 222 branching along the second line 210b. The pump P provided on the branch line 222 region receives water and supplies the water to the micro bubble generating unit 100a.

In addition, the ozone gas generated from the ozone generator 203 may serve to provide the ozone gas to the micro bubble generating unit 100a coupled to the ballast water inflow main line 210 through the fourth line 220. . The ozone generator 203 is in communication with the cooler 204.

Of course, the various configurations and devices shown in FIG. 1A are not necessarily the same as the drawings, as they are only one system embodiment. For reference, each of the valves V1 to V5 applied in the present embodiment has a structure capable of guiding water in various directions, and may be implemented mechanically or electronically.

1B illustrates that the microbubble generating unit 100a is mounted on the ballast water inflow main line 210. Referring to FIG. 1B, a plurality of micro bubble generating units 100a may be mounted on the ballast water inflow main line 210, and ballast water and ozone gas may be injected into each of the micro bubble generating units 100a, respectively. Can be. As shown in FIG. 1B, ozone gas generated by the ozone generator 203 may be simultaneously provided to the plurality of micro bubble generating units 100a, and may be simultaneously provided to the ballast water micro bubble generating unit 100a. . However, since the illustrated in FIG. 1B illustrates an embodiment of the present invention, the present invention is not limited to the configuration of FIG. 1B and various modifications may be made.

1C is a view for explaining a modification of the ballast water sterilization treatment apparatus using a microbubble according to an embodiment of the present invention.

Referring to FIG. 1C, unlike FIG. 1A, the apparatus further includes a G-L separator 253, ozone gas destruction and dehumidification breathers 254. 255, and a blower 252. Components other than these components are the same as the embodiment of FIG. 1A and are omitted for convenience of description.

In FIG. 1C, unlike FIG. 1A, the ballast water flowing out through the third line 210c is provided to the ballast tank 230 after passing through the G-L separator 253.

The G-L separator 253 temporarily stores the ballast water discharged from the electrolysis module 210 and provides the ballast tank 230 to the ballast tank 230. In this process, the G-L separator 253 discharges the ozone gas discharged from the ballast water to the outside to the ozone gas destruction and dehumidification breather 254. The ozone gas destruction and dehumidification breather 254 has a function of destroying ozone gas, and may further include a dehumidification function of removing moisture. For example, the dehumidifying breather 254 for destroying ozone gas may include an ozone degassing layer made of a material capable of removing ozone gas, such as manganese, and a dehumidification layer made of a material such as silica gel. The breather 254 may be configured to pass ozone gas discharged from the G-L separator 253 first through the ozone gas removal layer and subsequently through the dehumidification layer.

Here, manganese and silica gel as an embodiment of the present invention is not limited to the present invention only to them, of course, it can be replaced with other materials having the same or similar functions.

Meanwhile, according to an embodiment of the present invention, the ballast tank 230 may also be equipped with ozone gas destruction and dehumidification breather 255. The ozone gas destruction and dehumidification breather 255 receives ozone gas discharged from the ballast tank 230 to destroy ozone gas and remove moisture. For details of the ozone gas destruction and dehumidification breather 255, refer to that of the breather 254 described above.

The blower 252 may supply gas to the ballast tank 230 to forcibly circulate the flow of gas in the ballast tank 230. As a result, ozone gas present in the ballast tank 230 can be quickly discharged to the outside (for example, the breather 255).

Since the positions of the G-L separator 253, ozone gas depletion and dehumidification breather 254.255, and blower 252 shown in FIG. 1C are exemplary, the present invention is not limited only to this configuration. The positions of the components of the G-L separator 253, ozone gas depletion and dehumidification breather 254.255, and the blower 252 may be variously modified without departing from the spirit of the present invention.

On the other hand, as shown in Figure 2a and 2b, the microbubble generating unit (100a) for providing the microbubble to the ballast water inlet main line 210 after generating the micro bubble in the ballast water inlet main line 210 Combined.

According to an embodiment of the present invention, the microbubble generating unit 100a may be configured to generate microbubbles ('ozone-containing microbubbles') containing ozone. As such, when using the microbubble generating unit that generates the ozone-containing microbubble, ozone-containing microbubble may exist in the ballast tank 230. On the other hand, bubbles of micro or nano size in water are 1) inversely proportional to the power of the number of bubbles according to the same amount of air (n = V _total / V = V _total / {3/4 × πr ³ }), 2) same The interfacial area with air volume increases in inverse proportion to the particle size (inversely proportional to size (A = V _total × 3 / r), 3) Internal pressure increase and dissolution rate increase due to miniaturization, 4) Ion concentration and adhesion ability on the bubble surface 5) It has various characteristics such as low ascent rate and high underwater retention rate due to small buoyancy. Therefore, the ozone-containing microbubble existing in the ballast tank 230 for a long time can effectively remove microorganisms and the like contained in the ballast water.

In the present embodiment, the microbubble generating unit 100a may be arranged in plural, for example, four at equal intervals along the circumferential direction of the ballast water inflow main line 210.

At this time, the microbubble generating unit 100a is coupled along the radial direction of the ballast water inflow main line 210 so that the microbubbles made by the microbubble generating unit 100a are radial in the ballast water inflow main line 210 ( 2B is provided to the ballast water inflow main line 210 along the direction of the dashed arrow in FIG. 2B and is mixed with the ballast water flowing into the ballast water inflow main line 210 to contribute to removing microorganisms in the ballast water. For reference, in order for the microbubble generating unit 100a to be coupled to the ballast water inflow main line 210, a connector C or the like should be provided therebetween. Omit.

The microbubble produced by the microbubble generating unit 100a has a size of several micrometers or less, for example, a size of 50 micrometers or less, and these are the radial direction of the ballast water inflow mainline 210 (the dotted arrow direction in FIG. 2B). Since it is provided to the ballast water inflow main line 210 and is mixed with the ballast water flowing into the ballast water inflow main line 210, it is not easily extinguished and remains in the ballast water for a long time, thereby contributing to the treatment of the ballast water. do.

Referring to Figures 3a, 3b and 3c with respect to the micro bubble generating unit (100a) that can be applied to the ballast water sterilization treatment apparatus of this embodiment as follows.

As shown in these figures, the microbubble generating unit 100a includes a device main body 110a and a rotation guide unit 130a provided in the device main body 110a.

The device body 110a is a part which forms an appearance in the micro bubble generating unit 100a. It may be a plastic injection molding of transparent or translucent material, but need not be so.

The apparatus main body 110a includes an air inlet 111a through which air containing ozone gas or oxygen gas is introduced, a water inlet 113a through which water is introduced at a different position from the air inlet 111a, and an inflow. The water discharge part 115a through which the water generated by the microbubble is discharged by the interaction between the air and the water is provided. Here, the water flowing into the water inlet 113a may be water provided separately or ballast water.

The device body 110a may have a cylindrical shape having the same cross-sectional area in all the sections except for the inner wall surface on which the air inlet 111a and the water outlet 115a are formed. In such a structure, the air inlet 111a and the water outlet 115a may be disposed to face each other at both ends of the apparatus body 110a, as shown in FIG. 3C.

As such, the air inlet 111a and the water outlet 115a are disposed opposite to each other at both ends of the apparatus main body 110a, thereby destroying (colliding) the inflowed air into a microbubble, and then discharging the organic matter. It is preferable to proceed to, but need not be so. That is, if necessary, the air inlet 111a and the water outlet 115a and the water inlet 113a may be disposed at different positions from those in the drawing.

3A and 3B, the air inlet 111a is in the form of a hole, but this is an exemplary configuration, and the air inlet 111a is not limited to the shape of a hole. Meanwhile, a separate connector (not shown) may be provided in the air inlet 111a as in the water inlet 113a. That is, the water inlet 113a is provided with a water supply connector 116a for supplying water to the water inlet 113a. The screw portion 117a is formed in the connector 116a for water supply.

In some sections of the inner wall surface of the water discharge unit 115a, an extended inclined surface 118a is formed in which a cross-sectional area of the water discharge unit 115a is gradually expanded. Thus, the expansion inclined surface 118a is formed in the water discharge portion 115a, so that the flow of the discharged water can be induced more quickly based on the Bernoulli method, which is a correlation between the cross-sectional area and the velocity of the fluid, thereby generating microbubbles. It can work advantageously.

The rotation guide unit 130a guides the rotation of the water introduced into the apparatus main body 110a through the water inlet 113a and guides it toward the air introduced through the air inlet 111a while strongly turning the water. Do it.

The rotation guide unit 130a may be separately manufactured and coupled to a corresponding position in the apparatus main body 110a. However, the injection guide unit 130a may be integrally manufactured when the apparatus main body 110a is manufactured. .

On the other hand, the water collides toward the air to make the air remaining in the air, that is, ozone or oxygen into microbubbles, which are ultra-fine bubbles, but in order to increase the efficiency, the air flow into the apparatus main body 110a also proceeds rapidly, and It is desirable to make the flow of water colliding fast. In addition, the rotational (or swinging) method of water impinging on the air can be expected to improve efficiency. To this end, the rotation guide unit 130a is provided.

The rotation guide unit 130a is disposed along an imaginary line connecting the air inlet 111a and the water outlet 115a while allowing water flow from the water inlet 113a to the water outlet 115a. It includes a plurality of guide walls (140a, 150b).

The plurality of guide walls 140a and 150b include a first guide wall 140a and a second guide wall 150a disposed radially outward of the first guide wall 140a. Both the first guide wall 140a and the second guide wall 150a are provided as pipe-shaped tubular bodies.

One end of the first guide wall 140a is fixed to an inner wall surface of one side of the apparatus body 110a in which the water discharge unit 115a is formed while the one end thereof surrounds the water discharge unit 115a and the other end thereof is an air inlet 111a. ) Is spaced apart from the other inner wall surface of the device body (110a) formed.

The second guide wall 150a is disposed on the radially outer side of the first guide wall 140a to form a spaced gap between the first guide wall 140a and one end thereof with an air inlet 111a. It is fixed to the other inner wall surface of the main body (110a), the other end is spaced apart from one inner wall surface of the device body (110a) is formed water outlet (115a).

Referring to the action of the micro-bubble generating unit (100a), air is first introduced into the apparatus main body (110a) through the air inlet 111a, water as ballast water through the water inlet (113a) is the apparatus main body (110a) Flows into. The introduced water is rotated due to the rotation guide unit 130a including the first guide wall 140a and the second guide wall 150a and forms a flow as shown by the arrow of FIG. It collides quickly and efficiently with the air entering through 111a), thereby effectively generating a large number of microbubbles. As described above, the generated micro bubbles are provided to the ballast water inflow main line 210 together with the ballast water.

By such a configuration, the pumps P are operated so that a certain amount of ballast water and ozone gas flows along the ballast tank 230 while the ballast water, which is seawater, flows along the ballast water inlet main line 210. Head to). In the microbubble generating unit (100a) to generate a myriad of ozone microbubbles of small particles by using ozone gas and ballast water, the generated ozone microbubble is provided to the ballast water inlet main line 210 along with the ballast water to microorganisms Contributes to eliminating

In particular, in the present embodiment, the microbubble is provided to the ballast water inflow main line 210 along the radial direction of the ballast water inflow main line 210 (in the direction of the dashed arrow in FIG. 2B), thereby providing the ballast water inflow main line 210. Since it is mixed with the ballast water flowing into the, it is not easily extinguished and remains in the ballast water for a long time, thereby contributing to treating the ballast water.

The ballast water, which has been removed from the microorganism, enters the ballast tank 230 to overcome the equilibrium of the ship, and is later discharged from another suitable area.

When having such a structure, even if the ballast water exists in the state stored in the ballast tank 230 for a long time, the microorganisms can be blocked.

In addition, a mixture of organisms from different ecosystems can solve a variety of problems that disrupt ecosystems or cause significant damage to coastal industries or other commercial activities or resources.

As described above, according to the present embodiment, various problems caused by the use of the ballast water can be effectively solved, and in particular, the microbubble can remain in the ballast water for a long time, thereby improving the processing efficiency of the ballast water.

Various modifications to the microbubble generating unit

On the other hand, the above-described micro bubble generating unit (100a) may be variously modified as shown in Figures 4 to 10b out of the structure shown in Figures 1 to 3c.

Hereinafter, various modifications of the micro bubble generating units 100b to 100g will be described with reference to FIGS. 4 to 10B. Reference numerals in the following modifications are to use a method that gives the lowercase letters in the tail different, duplicate description is omitted.

4 is a cross-sectional view according to a second modification of the micro bubble generating unit.

The microbubble generating unit 100b according to the second modified example shown in this figure is the same in structure as the microbubble generating unit 100a of the first modified example. In other words, the rotation guidance unit 130b is the same as the first modified example in that it includes two first and second guide walls 140b and 150b.

4, the inner wall surfaces of the first and second guide walls 140b and 150b form inclined surfaces 141b and 151b whose cross-sectional area gradually decreases with respect to the direction in which water flows. It is different from the first modification.

As shown in FIG. 4, when the inclined surfaces 141b and 151b are formed on the inner wall surfaces of the first and second guide walls 140b and 150b, the flow of water discharged to the water discharge unit 115b by the inclined surfaces 141b and 151b may be faster. Can be. As a result, the flow and velocity of water can be increased to collide with air more quickly and more strongly, thereby increasing the amount of microbubbles generated.

Meanwhile, the microbubble generating unit 100b according to the second modified example is further provided with a porous air guide member 170b in the air inlet 111b. Porous air guide member 170b is formed with a number of fine pores (holes) on the surface, when the general air passes through the porous air guide member 170b, the size of the air particles is primarily reduced after the fine particles Since it may be introduced into the device body (110b) it may be more advantageous for generating micro bubbles.

In addition, when the porous air guide member 170b is employed, it is possible to prevent unnecessary consumption of air and to induce the inflow rate of air quickly, thereby increasing the efficiency of microbubble generation. .

In summary, in the present modified example, the porous air guide member 170b is used to maintain a small particle size of the incoming air in advance, thereby forming a rotating flow rate to increase the flow velocity at the inner wall instead of at the center region of the conduit. By doing so, it is possible to generate microbubbles of more effectively and finer size.

In the case of FIG. 4, the porous air guide member 170b is formed of a cylindrical pipe having a plurality of fine pores formed on a surface thereof, and one end thereof is coupled to the air inlet 111b but the free end thereof has a first end. It is arranged to partially enter into the guide wall 140b.

This is because when the flow rate is faster than the same flow rate, the incoming air and water collide more quickly, so the size of the bubble is generally smaller, and the water flowing in the rotation type is much better than the flow rate in the inner wall. It is advantageous to generate a micro bubble, in particular, if the length of the porous air guide member 170b as shown in Figure 4 is long so that the free end is arranged to enter a portion of the inside of the first guide wall 140b porous air guide member 170b The inflow of air provided from the side can be increased in various places, thereby increasing the amount of micro bubbles generated per unit time.

5 is a cross-sectional view according to a third modification of the micro bubble generating unit.

In the microbubble generating unit 100c according to the third modified example shown in this drawing, except that the porous air guide member 170c is formed of a conical pipe in which a plurality of fine pores are formed on a surface thereof. Is not different from the second modification.

6 is a cross-sectional view according to a fourth modified example of the microbubble generating unit.

In the microbubble generating unit 100d according to the fourth modified example shown in this drawing, both the apparatus main body 110d and the first and second guide walls 140d and 150d are provided as hollow bodies through which air can flow. It has a structure in which a plurality of fine pore holes (145d) is formed on the inner wall surface of the first guide wall (140d).

In addition, the porous air guide member 170d has a conical structure for introducing air into the inner space of the first guide wall 140d including the inside of the device body 110d.

In such a structure, since the air flowing from the porous air guide member 170d collides with the rotatable water flowing along two paths as shown by the arrow, it generates a larger amount of micro bubbles per unit time or unit size. It is advantageous.

7 is a sectional view according to a fifth modification of the microbubble generating unit.

The microbubble generating unit 100e according to the fifth modified example shown in this drawing is the same as the second modified example, but the collision type nozzle part 300e having the collision member 311 in the water discharge part 115e region. The difference is that is more concatenated.

The impingement nozzle unit 300e serves to double the generation of fine bubbles by colliding an admixture in which water and microbubbles are mixed through the water discharge unit 115e.

Referring to the collision nozzle unit 300e, the collision nozzle unit 300e sequentially includes the first diffusion unit 307, the first extension unit 309, and the collision member 311 in the direction of the arrow through which the air flows. , A second diffusion part 313 and a second extension part 315.

The first diffusion part 307 receives an airflow mixed with water and microbubbles from the water discharge part 115t and flows out to the first extension part 309. The first diffusion part 307 includes an inflow end 303 for receiving an airflow and an outlet end 305 for outflowing the airflow. It is formed narrower than the outlet end 305 of the inlet end 303. The diameter of the outlet end 305 is also formed to be narrower than the diameter of the water outlet 115e. In addition, the area of the first diffusion part 307 of the collision type nozzle part 300e has a structure in which the diameter gradually increases from the inlet end 303 to the outlet end 305.

The first extension part 309 is formed larger than the diameter of the outlet end 305 (discontinuously large) but flows the airflow while maintaining the same diameter for a predetermined section. Since the collision member 311 is provided in the region of the first extension portion 309, the adhering body collides with the collision member 311 while passing toward the first extension portion 309 through the first diffusion portion 307.

In other words, the air flowing through the first diffusion part 307 is subjected to a lot of pressure because the flow path of the first diffusion part 307 is narrow. In this state, the first extension part having a larger diameter, that is, a wider width, is provided. When 309 is reached, since the pressure suddenly weakens and collides with the collision member 311, fine bubbles may be generated.

As described above, the collision member 311 is disposed in the region of the first extension portion 309 and serves to generate fine bubbles as the air collides with each other. In the present modification, the collision member 311 is provided with a plate-like body having a large surface area, and is fixed to the inner wall surface of the collision nozzle part 300t by the trivet leg 312. Such a collision member 311 is not necessary to be limited in shape because it is sufficient if the structure that the air can collide.

Water containing the fine bubbles generated by hitting the collision member 311 is discharged through the second diffusion portion 313 and the second extension portion 315. In this case, although the second diffusion part 313 and the second extension part 315 may be omitted in construction, when the second diffusion part 313 and the second extension part 315 are provided, more fine bubbles are provided. It is advantageous in that it can be made.

The second diffusion part 313 is provided in the same manner as the structure of the first diffusion part 307. That is, the diameter of the first bubble 309 gradually increases from the diameter of the first extension portion 309 to the rearward direction with respect to the direction in which the water containing the fine bubbles flows.

The second extension part 315 is connected to the second diffusion part 313 so that the predetermined length section maintains the largest diameter of the second diffusion part 313.

When the collision type nozzle part 300e having such a structure is applied, the air flowing through the first diffusion part 307 receives a lot of pressure because the flow path of the first diffusion part 307 is narrow, and in this state, the diameter is increased. As it reaches a larger, ie, wider, first extension portion 309 and impinges on the collision member 311, a finer bubble is created. The water in which the fine bubbles are formed in this manner may be formed into many fine bubbles while passing through the second diffusion part 313 and the second extension part 315.

8 is a sectional view according to a sixth modification of the microbubble generating unit.

The microbubble generating unit 100f according to the sixth modified example shown in this drawing includes an inclined portion connecting the first diffusion portion 307 and the first extension portion 309 in the collision type nozzle portion 300f. Most of the same as the microbubble generating unit 100e of the fifth modification except that 308 is further formed.

The inclined portion 308 is connected to the first extension portion 309 while gradually increasing in diameter at the outlet end 305 of the first diffusion portion 307. There is no harm in generating fine bubbles.

9 is a sectional view according to a seventh modification of the microbubble generating unit.

The microbubble generating unit 100g according to the seventh modified example shown in this figure is the same as the microbubble generating unit of the fifth modified example except that the porous air guide member 170g has a conical shape.

However, in the case of this modification, the structure of the collision nozzle part 300g, especially the collision member 411 of the collision nozzle part 300g differs from a 5th modification. Although the collision member 411 is schematically illustrated in FIG. 9, the shape of the collision member 411 shows a view in which the airflow body can have a larger portion, an area, and repeatedly collide. For example, it may be considered that the pinwheel shape is arranged in a plurality, it can be more advantageous to make a fine bubble because the collision of the airflow can be further deepened.

10A is a perspective view according to an eighth modification of the microbubble generating unit, and FIG. 10B is a cross-sectional view of FIG. 10A.

Unlike the above-described modified examples, the microbubble generating unit 100h according to the eighth modified example shown in these figures is provided with a water supply connector 116h 'on both sides of the apparatus main body 110h. The water flows through 113h '. When such a structure is applied, since the water supply to the inside of the apparatus main body 110h may proceed at various places, it may be more advantageous for generating micro bubbles.

On the other hand, in addition to the first modified example, and having the same structure as the second to eighth briefly described above, while having a simple and simple structure, it is possible not only to increase the amount of micro bubbles generated relative to the amount of water and air used. The particles can be kept even. Therefore, the microbubble can be widely used for various purposes in various fields in the field of ballast water treatment and / or the like, for example, the present embodiment, which requires microbubbles.

Second embodiment of the ballast water sterilization apparatus of the present invention

FIG. 11 is a cross-sectional view of a region of a ballast water inflow main line in a ballast water sterilization apparatus using microbubbles according to a second embodiment of the present invention.

In the above-described embodiment, four microbubble generating units 100a to 100h are coupled at equal intervals along the circumferential direction of the ballast water inflow main line 210, but in the present embodiment, three microbubble generating units 100a to 100h) discloses a bonded structure.

Third embodiment of the ballast water sterilization apparatus of the present invention

12 is a cross-sectional view of a region of a ballast water inflow main line in a ballast water sterilization apparatus using microbubbles according to a third embodiment of the present invention.

In the present embodiment, the microbubble generating units 100a to 100h are coupled along the tangential direction of the ballast water inflow main line 210 so that the micro bubbles may be provided along the tangential direction of the ballast water inflow main line 210. do. In this case, simply improving the structure of the above-described connector (C1) can be easily implemented.

In the case of the present embodiment, the microbubble is provided to the ballast water inflow main line 210 along the tangential direction of the ballast water inflow main line 210 (in the direction of the dashed arrow in FIG. 12) and thus the ballast water inflow main line 210. Since it is mixed with the ballast water flowing into the water, it is expected that the mixing ratio with the ballast water can be further increased, so that it can be contributed to the treatment of the ballast water as it does not disappear easily but remains in the ballast water for a long time.

The embodiments described above are all exemplary and various modifications may be made without departing from the spirit of the present invention.

For example, all of the above-described modifications of the microbubble generating unit may be equipped with an anion generator. Mounting an anion generator can provide finer air particles, which may be more advantageous for generating microbubbles.

7 to 9, the impact nozzle part is illustrated as being coupled to the apparatus body, but the impact nozzle portion may be integrally formed with the apparatus body.

Meanwhile, in the above-described embodiment, four micro bubble generating units 100a are arranged at equal intervals with each other along the circumferential direction of the ballast water inflow main line 210, but configurations may be arranged at different intervals. Do. In addition, it is also possible that the bubble generating unit 100a is arranged along the circumferential direction of the ballast water inflow main line 210 instead of four to one, three, or five or more Mavic.

In addition, all of the above-described modifications have been described as injecting water into the water inlet and air into the air inlet, but injecting water and air into the water inlet, and injecting air into the air inlet. It would also be possible. In addition, the water supply portion may be two or three or more places, as shown in Figure 13a and 13b.

On the other hand, the micro-bubble generating unit described above may not only generate micro-sized bubbles, but also micro-sized bubbles smaller than the micro size. For example, the microbubble generating unit described above can generate microbubbles and / or nanobubbles of microbubbles and does not exclude producing bubbles of smaller sizes. In addition, the term "micro bubble generating unit" used in the present specification and claims does not produce only "micro sized bubbles", but "micro sized bubbles" and / or "nano sized bubbles" and / or "nano sized." It should be interpreted as a unit that produces a bubble containing a "bubble of smaller size than a bubble of size."

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

100a ~ 100h: Micro bubble generating unit 210: Ballast water inflow main line
230: Ballast Tank

Claims (15)

A ballast water inflow main line which forms a path through which ballast water from seawater flows, and introduces the ballast water into a ballast tank; And
A microbubble generating unit coupled to the ballast water inlet mainline and providing the microbubble to the ballast water inlet mainline after generating microbubbles,
The micro bubble generating unit,
An air inlet through which air as ozone or oxygen is introduced, a water inlet through which water is introduced at a different position from the air inlet, and water in which microbubbles are generated by the interaction of the air with the introduced water Apparatus body having a water discharge portion to be; And a rotation induction guide part provided in the device main body to guide rotation of the water introduced into the device main body through the water inlet part and to guide toward the air introduced through the air inlet part. Vessel ballast water sterilizer using bubble. The method of claim 1,
The ballast water sterilization treatment apparatus using a micro-bubble, characterized in that the plurality of micro-bubble generating unit is arranged with a plurality of equal intervals along the circumferential direction of the ballast water inlet main line. The method of claim 1,
The ballast water using microbubbles, characterized in that the microbubble generating unit is coupled along the radial direction of the ballast water inlet mainline so that the micro bubble can be provided along the radial direction of the ballast water inlet mainline. Sterilization Processing Unit. The method of claim 1,
The ballast water using the microbubble is characterized in that the microbubble generating unit is coupled along the tangential direction of the ballast water inlet mainline so that the microbubble can be provided along the tangential direction of the ballast water inlet mainline. Sterilization Processing Unit. The method of claim 1,
A branch line branched from the ballast water inflow main line is provided in one region of the ballast water inflow main line, and the ballast water flowing through the branch line is provided to the micro bubble generating unit. Ship ballast water sterilization treatment equipment used. delete The method of claim 1,
The rotation induction guide includes at least one guide wall disposed along an imaginary line connecting the air inlet and the water outlet while allowing water flow from the water inlet to the water outlet. Vessel ballast water sterilizer using micro bubble. The method of claim 7, wherein
The at least one guide wall,
One end thereof is fixed to one inner wall surface of the apparatus body in which the water discharge portion is formed while surrounding the water discharge portion, and the other end is spaced apart from the other inner wall surface of the apparatus body in which the air inlet portion is formed. ; And
It is disposed on the radially outer side of the first guide wall to form a spaced gap between the first guide wall, one end of which is fixed to the other inner wall surface of the device body in which the air inlet is formed, the other end is the water Ballast water sterilization treatment apparatus using a micro bubble, characterized in that it comprises a second guide wall spaced apart from the inner wall surface of one side of the apparatus main body formed with a discharge. 9. The method of claim 8,
At least one of the first guide wall and the second guide wall is formed of a tubular body,
At least one wall surface of the first guide wall and the second guide wall is a ballast water sterilization treatment apparatus using a micro bubble, characterized in that to form an inclined inclined surface. The method of claim 1,
The micro bubble generating unit, the ballast water sterilization treatment apparatus using a micro bubble, characterized in that it further comprises a porous (porous) air guide member coupled to the air inlet region. The method of claim 10,
The porous air guide member is a ballast water sterilization treatment apparatus using a micro bubble, characterized in that the cylindrical or conical pipe is formed with a plurality of fine pores (hole) on the surface. The method of claim 7, wherein
The apparatus body and the guide wall body is provided as a hollow body in which air flows therein,
At least one of the device body and the guide wall wall ballast water sterilization treatment apparatus using a micro bubble, characterized in that a plurality of fine pore holes are further formed. The method of claim 1,
The microbubble further comprises a collapsible nozzle part connected to the water outlet part and including a collision member configured to double the generation of fine bubbles by colliding an admixture mixed with water and microbubbles through the water outlet part. Ship ballast water sterilization treatment equipment used. The method of claim 13,
The collision nozzle unit,
A first diffusion part formed in an inlet region with respect to a direction in which the air flows, and gradually increasing in diameter toward a rear end thereof;
A first extension part connected to a rear end of the first diffusion part and having the collision member disposed therein;
A second diffusion part connected to a rear end of the first extension part and gradually increasing in diameter toward a rear end of the first extension part; And
And a second extension part connected to a rear end of the second diffusion part and maintaining the largest diameter of the second diffusion part as much as a predetermined length section. 15. The method of claim 14,
The impact nozzle unit, ballast water using a micro bubble further comprises an inclined portion connecting the first diffusion portion and the first extension portion inclined mutually between the first diffusion portion and the first extension portion. Sterilization Processing Unit.

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