KR20190138474A - Chemical-free circulating aquaculture farming apparatus - Google Patents

Abstract

The purpose of the present invention is to provide a circulating type aquafarming apparatus which prevents environmental contamination and minimizes energy consumption for supply of additional aquafarming water by removing contaminants within aquafarming water discharged from an aquafarming water tank and resupplying contaminant-removed aquafarming water to the aquafarming water tank, thereby circulating aquafarming water. According to an embodiment of the present invention, the circulating type aquafarming apparatus includes: an aquafarming water tank for aquafarming aquatic organisms; a first filter unit for primarily filtering contaminants in aquafarming water discharged from the aquafarming water tank; a first nano-microbubble generating unit for generating at least one of nanobubbles or microbubbles in the aquafarming water which has been primarily filtered by the first filter unit; and an aquafarming water treating unit for removing the contaminants by floating the contaminants in the aquafarming water to the surface of the aquafarming water by using the at least one of the nanobubbles or microbubbles which have been generated by the first nano-microbubble generating unit, and for resupplying the contaminant-removed aquafarming water to the aquafarming water tank.

Description

Chemical-free CREECULATING AQUACULTURE FARMING APPARATUS}

The present invention relates to a circulating aquaculture device.

Sites equipped with facilities for propagation or aquaculture of aquatic organisms artificially created on land and those which remain there are commonly referred to as fish farms. Many fish farms now have single or multiple layers of round or square tanks of varying volume on the ground.

On the other hand, artificial or natural feeds are provided as food depending on the species of fish farmed, and antibiotics are also administered. It is necessary to treat the aquaculture water with these foods and the excreta of the aquaculture organisms fed with antibiotics, leftover feed and antibiotic residues in the aquaculture water.

In addition, the farm should be created to live in the living organisms, and for this purpose, the water temperature, dissolved oxygen, etc. that are suitable for the living organisms should be controlled. The higher the temperature, the lower the amount of dissolved oxygen, which can result in the death of the living organisms. If the water temperature does not match the characteristics of the fish species, it may cause growth or death, and may be infected by seasonal virus invasion.

In order to solve the problems of aquaculture in aquaculture farms, various studies are being conducted to increase the efficiency of aquaculture and to reduce environmental pollution.

Republic of Korea Patent Publication No. 10-2004-0096565 (Nov. 16, 2004)

The present invention removes contaminants in aquaculture water discharged from aquaculture tanks and recirculates the aquaculture waters from which aquaculture is removed to aquaculture tanks, thereby circulating the aquaculture water, thereby preventing environmental pollution and reducing energy consumption for supplying additional aquaculture water. It is to provide a circulating aquaculture device to minimize.

According to an aspect of the present invention, aquaculture tanks for aquaculture of aquatic organisms, a first filter unit for first filtering the contaminants in the aquaculture water discharged from the aquaculture tank, nano water in the cultured water primarily filtered by the first filter unit The contaminants in the aquaculture water may be collected using at least one of the first nano-micro bubble generator that generates at least one of bubbles and micro bubbles, and at least one of the nano bubbles and micro bubbles generated by the first nano-micro bubble generator. A circulating aquaculture device is provided that includes aquaculture water treatment for floating and removing contaminant-removed aquaculture water back to the aquaculture tank.

The first nano-micro bubble generator may generate at least one of nano bubbles and micro bubbles containing an oxidizing agent including ozone and hydrogen peroxide to generate hydroxyl radicals. It may further include an oxygen supply unit for supplying oxygen to the aquaculture water discharged from the aquaculture water treatment unit.

The oxygen supply unit may further include a second nano-micro bubble generator that generates at least one of nano bubbles and micro bubbles containing oxygen in the culture water.

It may further include a water temperature control unit for adjusting the temperature of the aquaculture water discharged from the aquaculture water treatment unit.

The method may further include a second filter unit for secondarily filtering contaminants remaining in the aquaculture water discharged from the aquaculture water treatment unit.

It may further include a water replenishment line for supplying replenishment water to the aquaculture water discharged from the aquaculture tank.

The aquaculture tanks are arranged in plural, and the plural aquaculture tanks may be arranged in multiple stages in the longitudinal direction.

The aquaculture water treatment unit may sterilize the aquaculture water flowing from the first nano-micro bubble generator using at least one of nano bubbles and micro bubbles, and remove contaminants from the aquaculture water introduced from the sterilization tank. Contaminant floatation tank to be floated to the surface, contaminant collection tank disposed at the end of the contaminant floatation tank to collect contaminants floating from the contaminant floatation tank to the surface of the aquaculture water; And a scraper for scraping contaminants into the contaminant collection tank, and a fresh water reservoir for storing the fresh water from which the contaminant is removed.

The first nano-micro bubble generating unit is a housing in which the inlet and outlet are formed to enable the inflow and outflow of the cultured water, a plurality of collision members disposed in the fluid movement path inside the housing to generate bubbles in the fluid in accordance with the impact or friction of the cultured water It may include a bubble generating unit comprising a, and a flow path disposed in at least one of the inside and the outside of the housing, to guide the bubbles in the fluid to be ultra-fine by the stress generated during the movement of the aquaculture water.

It may further include an automatic supply unit capable of automatically controlling the supply of food and oxygen provided to the aquatic organisms.

According to the present invention, by removing the contaminants in the aquaculture water discharged from the aquaculture tank and re-contaminated the aquaculture water from the aquaculture tank to the aquaculture tank to circulate the aquaculture water to prevent environmental pollution and energy consumption for supply of additional aquaculture water Can be minimized.

1 is a view showing a circulation process of the circulating aquaculture device according to an embodiment of the present invention.
Figure 2 is a cross-sectional view showing aquaculture water treatment unit according to an embodiment of the present invention.
Figure 3 shows a circulating aquaculture device according to an embodiment of the present invention.
Figure 4 shows a circulating aquaculture device according to another embodiment of the present invention.
5 is a view showing a first nano-micro bubble generator and a second nano-micro bubble generator according to an embodiment of the present invention.
6 and 7 illustrate detailed structures and modifications of a plurality of collision members of a first nano-micro bubble generator and a second nano-micro bubble generator according to an exemplary embodiment of the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present disclosure does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or combinations thereof.

Hereinafter, an embodiment of the recirculating aquaculture device 300 according to the present invention will be described in detail with reference to the accompanying drawings, in the following description with reference to the accompanying drawings, the same or corresponding components are given the same reference numerals and Duplicate description thereof will be omitted.

According to an aspect of the present invention, the aquaculture tank 310 for aquaculture of aquatic organisms, the first filter unit 320, the first filter unit for first filtering the contaminants in the aquaculture water discharged from the aquaculture tank 310 ( The nano-bubbles generated by the first nano-micro bubble generator 330, and the first nano-micro bubble generator 330 for generating nano-bubbles or micro bubbles in the cultured water primarily filtered by 320) Circulating aquaculture device including aquaculture water treatment unit 340 for removing contaminants in aquaculture water to the surface of the culture water by using the micro bubble, and re-supply the contaminated water to the culture tank 310. 300 is provided.

The circulating aquaculture apparatus 300 according to the present embodiment removes contaminants in aquaculture water through a first filter unit 320, a first nano-micro bubble generator 330, and aquaculture water treatment unit 340. Oxygen is supplied to the water and the aquaculture water from which the contaminants have been removed may be resupplied to the aquaculture tank 310 so that the aquaculture water may be circulated.

According to the present invention, it is possible to prevent the environmental pollution due to the discharge of contaminated aquaculture water through the removal of contaminants in aquaculture water, it has a circulation structure can minimize the energy consumption for the supply of additional aquaculture water. In addition, by sterilizing viruses, bacteria, etc., and controlling the aquaculture environment such as dissolved oxygen amount and water temperature can increase the efficiency of aquaculture.

Hereinafter, each configuration of the recirculating culture apparatus 300 according to the present embodiment will be described with reference to FIGS. 1 to 3.

Aquaculture tank 310 is for aquaculture of aquatic life is formed to have an environment suitable for the aquatic life. As shown in FIG. 3, the aquaculture tank 310 may be disposed in multiple stages in the longitudinal direction so that a plurality of tanks may be arranged in layers.

The plurality of aquaculture tanks 310 may be formed of a plurality of layers to accommodate the aquatic organisms of many individuals in preparation for the corresponding area. In addition, the plurality of aquaculture tanks 310 may have different environments to form a variety of living creatures at the same time.

The plurality of aquaculture tank 310 may be formed in a multi-stage structure of a staircase type, a multi-stage structure such as a building in which the aquaculture tank 310 located on the upper floor is located above the aquaculture tank 310 located on the lower floor. Can be formed.

As shown in FIG. 1, the first filter unit 320 may be connected to the culture tank 310 and may primarily filter contaminants in the culture water discharged from the culture tank 310.

The first filter unit 320 may filter contaminants having large particles, such as excreta and feed of the aquaculture organisms. Furthermore, the first filter unit 320 may have a more compact structure to filter finer particles.

As shown in FIG. 1, the contaminants filtered in the first filter part may be moved to a sludge treatment part to be described later, and the moved contaminants may be formed into a sludge cake by the sludge treatment part and discharged to the outside.

When there is a shortage of aquaculture water circulated according to the present embodiment and supplied to the aquaculture tank 310, supplemental water may additionally flow through the water replenishment line 420. More specifically, the water replenishment line 420 may be combined with the first filter unit 320 to additionally introduce cultured water from the outside, and the introduced cultured water may undergo primary contaminant filtration through the first filter unit 320. have.

In addition, when the replenishment water supplied from the water replenishment line does not have contaminants such that the replenishment water does not have to pass through the first filter unit, the replenishment line may be directly supplied with the first nano-micro bubble generating unit.

As such, the first filter unit 320 may primarily filter the contaminants in the cultured water additionally introduced from the outside as well as the cultured water discharged from the cultured water tank 310.

As shown in FIG. 1, the first nano-micro bubble generator 330 is connected to the first filter unit 320 and nano-bubbles or micro bubbles in aquaculture water that has undergone primary filtration at the first filter unit 320. Generate bubbles. The nano bubbles or micro bubbles generated in the first nano-micro bubble generator 330 refer to ultra-miniature bubbles, and may receive a small amount of buoyancy due to their small volume and may remain in the cultured water for a long time. Nanobubbles or microbubbles can also float contaminants in aquaculture water to separate them from the contaminated water.

The first nano-micro bubble generator may generate at least one of nano bubbles and micro bubbles, respectively, as needed.

Nano bubbles are bubbles of 10 μm or less in diameter, and micro bubbles are bubbles of 10 μm to 50 μm in diameter. Nano bubbles and micro bubbles can generate free radicals that are highly oxidative to decompose and remove organic materials, adsorb and float organic materials, and increase dissolved oxygen to activate aerobic microorganisms to improve water quality.

Since microbubbles are larger than nanobubbles, they can float faster than nanobubbles due to buoyancy, and nanobubbles, on the other hand, can stay in cultured water for a long time and generate more free radicals. It can be generated selectively as needed.

In addition, the first nano-micro bubble generator 330 may generate nano bubbles or micro bubbles containing an oxidizing agent such as ozone and hydrogen peroxide in order to generate hydroxyl radicals. Ozone-containing nanobubbles or microbubbles can react with water in aquaculture water to generate hydroxyl radicals and oxygen. Through this process, the cultured water can be sterilized and oxygen can be supplied to the cultured water.

More specific structure and function thereof of the first nano-micro bubble generator 330 will be described later with reference to FIG. 5.

As shown in FIG. 2, the aquaculture water treatment unit 340 includes aquaculture water inflow tank 342, a sterilization tank 344, a contaminant flotation tank, a contaminant collection tank 354, a scraper 356, and a fresh water storage tank 360. And a plurality of partition walls. Aquaculture water treatment unit 340 may adjust the amount of dissolved oxygen to remove contaminants in the culture water and create a culture environment.

As illustrated in FIG. 2, the plurality of partition walls may include first partition walls 370 to fourth partition walls 376, and auxiliary partition walls 378. Aquaculture water inlet 342, sterilization tank 344, contaminant flotation tank, contaminant collection tank 354 and fresh water storage tank 360 may be partitioned through a plurality of partitions.

Specifically, the first partition 370 partitions the aquaculture water inlet 342 and the first sterilization tank 346, and the second partition 372 is the first sterilization tank 346 and the second sterilization tank 348. ), The third partition 374 partitions the second sterilization tank 348 and the contaminant flotation tank, and the fourth partition 376 partitions the contaminant flotation tank and the fresh water storage tank 360, and the auxiliary partition wall ( 378 is formed at the end of the contaminant collection tank 354 to prevent overflow of aquaculture water in the contaminant collection tank 354, which will be described later.

First, the cultured water inflow tank 342 is a space into which the cultured water in which nanobubbles or microbubbles are generated is introduced through the first nano-microbubble generator 330. When a predetermined amount or more of the aquaculture water flows into the aquaculture water inflow tank 342, the aquaculture water flows into the first sterilization tank 346 through an inflow hole 380 formed in the first partition 370.

Next, the first sterilization tank 346 sterilizes the cultured water by using nano bubbles or micro bubbles in the cultured water. In this embodiment, nanobubbles or microbubbles containing ozone in aquaculture water react with water to generate free radicals such as hydroxyl radicals, thereby causing the action of sterilizing bacteria, viruses, molds, and the like.

Next, the second sterilization tank 348 may sterilize the cultured water by using nano bubbles or micro bubbles in the cultured water and at the same time, adjust the dissolved oxygen amount of the cultured water. The ozone in the nanobubble or microbubble described above may react with water to generate oxygen, thereby controlling the amount of dissolved oxygen in the cultured water.

Next, the sterilized aquaculture water flows into the contaminant flotation tank through the first sterilization tank 346 and the second sterilization tank 348, and the contaminant flotation tank uses the nano bubble or the micro bubble to form contaminants in the culture water. Let them float to the surface of the water.

Aquaculture water passing through the first nano-micro bubble generator 330 contains nano bubbles or micro bubbles, so that the culture water inflow tank 342, the first sterilization tank 346, the second sterilization tank 348, and the contaminants are floated. Sterilization and oxygen evolution can continue during the bath.

The contaminant collecting tank 354 is a space for collecting contaminants floating from the contaminant flotation tank to the aquaculture water surface. Since contaminants in the aquaculture water rise to the surface of the aquaculture water, the contaminant collection tank 354 is disposed in the direction of the upper fresh water reservoir 360 of the fourth partition 376 as shown in FIG. It can be positioned at a level comparable to the level of aquaculture water in the contaminant flotation tank to minimize the route of contaminants in the process.

In addition, as shown in FIG. 2, the auxiliary partition 378 may be formed at the end of the pollutant collecting tank 354 to prevent the collected pollutants from overflowing from the pollutant floating tank to the fresh water storage tank 360.

As shown in FIG. 1, the contaminant collecting tank 354 may be connected to the sludge treatment unit 358. The sludge treatment unit 358 may form a sludge cake by reducing the moisture of the contaminants collected in the contaminant collecting tank 354. Specifically, the contaminants removed from the aquaculture water are moved to the sludge treatment unit 358 in the contaminant collection tank 354, and the sludge treatment unit 358 may reduce the moisture contained in the contaminants to form a sludge cake and discharge it to the outside. . The separated water may be moved to the first filter part 320 again and circulated.

The scraper 356 may be installed on the upper portion of the aquaculture water treatment unit 340 so as to scrape the contaminants floating on the surface of the aquaculture water with a contaminant collection tank 354. The scraper 356 may include a chain that rotates and a plate member that may be coupled to the chain to scrape off contaminants.

In other words, when the contaminant flotation tank floats contaminants in the aquaculture water to the surface of the aquaculture water using nano bubbles or micro bubbles, the scraper 356 moving in the direction of the contaminant collection tank 354 floats to the surface of the aquaculture water. You can scrape and collect contaminants.

As described above, when the contaminants in the culture water are removed by the contaminant flotation tank, the contaminant collection tank 354 and the scraper 356, the fresh water from which the contaminants are removed is left at the bottom of the contaminant flotation tank.

As shown in FIG. 2, the fresh water induction pipe 362 is formed between the contaminant flotation tank and the fresh water storage tank 360 by penetrating through the fourth partition 376. (360).

Aquaculture water in the culture water treatment unit 340 through the inlet hole 380 formed in the first partition 370, and beyond the second partition 372 and the third partition 374, the culture water inflow tank 342 The first sterilization tank 346, the second sterilization tank 348, and the contaminant floating tank may be sequentially flowed.

Here, the heights of the first and fourth partition walls 370 to 376 and the auxiliary partition walls 378 may be different from each other. Specifically, the second partition wall 372 is the first partition wall 370 so that the aquaculture water flows sequentially into the aquaculture water inflow tank 342, the first sterilization tank 346, the second sterilization tank 348, and the contaminant flotation tank. It may be formed lower than), and the third partition 374 may be formed lower than the second partition 372.

In addition, the fourth partition 376 may be formed to be similar to the height of the second partition 372 or the third partition 374 according to the height of the pollutant collection tank 354. Specifically, when the heights of the second and fourth partitions 372 and 376 are similar, the water level of the culture water in the second sterilization tank 348 and the contaminant flotation tank is equal to the second partition 372 and the third partition wall. When the heights of the third and fourth partitions 374 and 376 are similar to each other, the level of the farmed water in the contaminant flotation tank is increased by the third partition 374. ) And the fourth barrier rib 376.

As shown in FIG. 2, the second partition 372 and the third partition 374 may be formed to have an inclination in the moving direction of the farmed water.

Aquaculture water passes through the culture water treatment unit 340 and after the sterilization and oxygen supply of the culture water is in progress, the culture water may be introduced into the second filter unit 390 in the fresh water storage tank 360. As illustrated in FIG. 1, the second filter unit 390 may secondaryly filter the contaminants remaining in the cultured water passed through the cultured water treatment unit 340.

In addition, the second filter part may be made of a material of nano particles such as silver nano, and the flow path may be formed as a regular or irregular maze.

As shown in FIG. 1, the water temperature controller 400 may adjust the water temperature of cultured water flowing from the secondary filter unit. Aquaculture water can be cooled or heated depending on the environment suitable for the living organisms to be cultured in the culture tank 310.

In addition, when a variety of aquaculture organisms are cultured in the plurality of aquaculture tank 310, a plurality of water temperature control unit 400 may be formed to supply aquaculture water of different water temperature.

The oxygen supply unit 410 may supply oxygen to the aquaculture water so that the cultured water whose water temperature is controlled through the water temperature control unit 400 has a dissolved oxygen amount in which the aquaculture organism can be cultured. The oxygen supplied here may be supplied to the aquaculture water as particles of the size of nanobubbles or microbubbles.

As shown in FIG. 1, the second nano-micro bubble generator 412 may supply oxygen supplied from the oxygen supply unit 410 to the cultured water to have a size of nano bubbles or micro bubbles so that the oxygen may be supplied to the cultured water. can do. Oxygen having the size of nano bubbles or micro bubbles can stay in the water for a long time, thereby minimizing the change in the amount of dissolved oxygen in the culture water.

In addition, the second nano-micro bubble generating unit may generate at least one of nano bubbles and micro bubbles, respectively, as needed, such as the first nano-micro bubble generating unit described above.

The automatic supply unit can automatically control the supply of food and oxygen to the aquatic organisms. The automatic supply unit may automatically control the first nano-micro bubble generator 330, the second nano-micro bubble generator 412, and the oxygen supply unit 410 to adjust the amount of oxygen supplied to the cultured water.

In addition, the automatic supply unit can automatically control the provision of food for aquaculture. Aquaculture water can be resupplied to the aquaculture tank 310 after the sterilization, water temperature control and oxygen supply process have been performed. have. As described above, the circulating culture device 300 according to the present embodiment is discharged from the culture water tank 310, the first filter unit 320, the first nano-micro bubble generator 330, aquaculture Through the water treatment unit 340, the second filter unit 390, the water temperature control unit 400, and the second nano-micro bubble generator 412, circulation to the culture tank 310 may occur. .

Next, with reference to Figure 4 will be described with the recirculating culture apparatus 300 according to another embodiment of the present invention.

In the present embodiment, since there is a difference in the order of the oxygen supply unit 410 and the water temperature control unit 400 in the circulation process of the above-described embodiment and aquaculture water, the difference according to this will be described.

In the present embodiment, the culture water is supplied with oxygen through the oxygen supply unit 410 and the second nano-micro bubble generator 412, and then the water temperature is controlled in the water temperature control unit 400.

When passing through the oxygen supply unit 410 and the second nano-micro bubble generating unit 412 and the water temperature control unit 400, when cultivating a variety of aquaculture organisms that require a similar amount of dissolved oxygen, first of all After adjusting the amount of dissolved oxygen, it is advantageous to circulate the aquaculture water by adjusting the water temperature suitable for the aquatic organisms.

Next, referring to FIG. 5, the respective configurations of the first nano-micro bubble generator 330 and the second nano-micro bubble generator will be described in more detail.

As shown in FIG. 5, the housing 110 has a configuration in which the inlet 112 and the outlet 114 are formed to enable the inlet and outlet of the fluid 10. The fluid 10 may be introduced into the inlet 112 of the housing 110 by the driving force of the pump 190, and is supplied to the housing 110 between the pump 190 and the inlet 112 of the housing 110. A heterogeneous fluid supply unit 180 for supplying a heterogeneous fluid 20 different from the fluid 10 and having a gas or liquid state may be disposed in the fluid 10.

The heterogeneous fluid supply unit 180 may be configured as, for example, a venturi tube structure (venturi part) having a wide inlet and an outlet and a relatively narrow inside as illustrated in FIG. 5. In addition, the venturi part may have a heterogeneous fluid 20 such that a heterogeneous fluid 20 (a liquid such as a gas such as air, oxygen, nitrogen, ozone, carbon dioxide, or a catalyst) may be mixed in the fluid 10 supplied to the housing 110. 20) The tank can be connected.

The flow rate of the fluid 10 supplied by the pump 190 is rapidly increased while passing through the venturi part, and the heterogeneous fluid 20 supplied from the heterogeneous fluid 20 tank has a strong suction force due to the increase in the flow rate. It is magnetically absorbed into the inside and mixed with the fluid 10 flowing into the housing 110. As such, the mixed fluid 10 of the fluid 10 and the heterogeneous fluid 20 may be more finely mixed by the bubble generating unit 120 and the flow path 130, and then discharged along the discharge pipe path 195.

According to this embodiment, the bubble generation and gas mixing system can be modularized to process the fluid 10 from low volume to large volume, and to increase the water dissolution rate of the gas selected from the group of gases such as air, oxygen, hydrogen, and ozone. The gas injection amount can be reduced, and accordingly, a gas generator such as an oxygen generator, a hydrogen generator or an ozone generator can be miniaturized.

In addition, the housing 110 may be composed of an inner cylinder and an outer cylinder to have a dual structure. The bubble generating unit 120 may be installed inside the inner cylinder, and may have a container structure with an open top.

The bubble generating unit 120 may be installed inside the inner cylinder, and may have a container structure with an open top. The first collision member 122 and the second collision member 124 may be alternately installed in the inner cylinder, and the first collision member 122 is rotatable by the driving unit 160.

The outer cylinder may be formed in a larger size (diameter) than the inner cylinder to accommodate the inner cylinder therein, and the flow path 130 may be formed in a space between the inner cylinder and the outer cylinder. For example, the flow path 130 may be formed to have a spiral structure along the outer wall of the inner cylinder.

The bubble generating unit 120 may be installed in the fluid 10 moving path inside the housing 110 as shown in FIG. 5 to generate bubbles in the fluid 10 according to the collision or friction of the fluid 10. The plurality of collision members, that is, the plurality of first collision members 122 and the second collision member 124 may be disposed to be spaced apart from each other.

In this case, at least some of the plurality of collision members may be plate-like members. That is, as shown in FIG. 5, the first collision member 122 and the second collision member 124 may have a plate shape, and may be alternately disposed.

At least some of the plurality of collision members may have a mesh structure in which a plurality of openings 127 are formed to allow the fluid 10 to pass therethrough. In the present exemplary embodiment, a case in which both the first collision member 122 and the second collision member 124 are mesh types having the opening 127 is provided as an example.

As such, by arranging a plurality of collision members including the first collision member 122 and the second collision member 124 in the housing 110, the fluid 10 flowing into the housing 110 is transferred to the first collision member ( Collision and friction may occur between the 122 and the second collision member 124, and thus, fine bubbles may be generated in the fluid 10.

On the other hand, the interior of the housing 110, as shown in Figure 5, the rotary shaft 140 is disposed in the longitudinal direction, both ends can be rotatably installed in the housing 110, at least some of the plurality of collision members, specifically As a result, the first collision member 122 may be coupled to the rotation shaft 140 to rotate with the rotation shaft 140, and the second collision member 124 may be fixed to the housing 110 in a fixed type. .

As such, the first collision member 122 coupled to the rotation shaft 140 may rotate by the driving force of the rotation blade 150 or the driving unit 160. First, as shown in FIG. 5, the first collision member 122 may be rotated by power by coupling a driving unit 160 such as a motor to the rotation shaft 140. In this case, the size and / or generation amount of the bubble may be adjusted by adjusting the rotational speed of the first collision member 122 through a speed adjusting device including a gear box or an inverter.

In addition, the first collision member 122 may be rotated in a non-powered manner without using the driving unit 160 as described above. As shown in FIG. 5, the rotary blade 150 may be installed at an end portion of the rotary shaft 140. The rotary vane 150 may rotate at least some of the plurality of collision members, that is, the first collision member 122, by the flow force of the fluid 10 flowing through the housing 110. In this case, the fluid 10 may transmit flow force to the first collision member 122 in axial flow, cross flow, or cross flow.

As described above, the present embodiment may be operated in two modes, the non-powered method using the rotary vane 150 and the power type using the drive unit 160. Among these, the non-powered method may reduce the driving energy. In this case, when the power method is used, it is possible to actively control the bubble size, the amount of generation, and the like, which has the advantage of generating higher quality nanobubbles.

Meanwhile, as described above, the rotary vane 150 is primarily used for driving the rotation of the first collision member 122. In addition, the rotary vane 150 may also be formed by the fluid (e.g., the friction or friction of the fluid 10). The secondary role of generating bubbles in 10) can be more abundantly generated.

In the present embodiment, as described above, by configuring the first collision member 122 as the rotor and the second collision member 124 as the stator, nano bubbles may be more effectively generated. More specifically, the first collision member 122 and the second collision member 124 may each have a mesh-like structure having an opening 127, and they may be in a state where the surfaces facing each other are substantially in contact or almost in contact with each other. Since they are arranged at relatively small intervals to hold, the fluid 10 passing through the first collision member 122 and the second collision member 124 may be separated from the first collision member 122 and the second collision member 124. Collision and friction may occur, and at the same time, cavitation may occur in the fluid 10 as the first collision member 122 rotates.

As such, the collision with the fluid 10, friction, and cavitation in the fluid 10 act in a complex manner, and thus, the fluid 10 particles may be atomized at least several nanometers (nm) to several tens of micrometers (μm). The gas dissolution rate in (10) can be further increased.

In this configuration, the number of the rotating shafts 140 in which the plurality of first collision members 122 (rotors) are installed at regular intervals may be two axes within the housing 110 as long as the internal space of the housing 110 allows. It is possible to install three or more axes, the details of which will be described later.

The flow path 130 is disposed in at least one of the inside and the outside of the housing 110 as shown in FIG. 5 to induce bubbles in the fluid 10 to be very fine due to the stress generated during the movement of the fluid 10. can do.

As the fluid 10 passes through the flow path 130, friction occurs with the surface of the flow path 130, for example, a shear stress is generated in the fluid 10, and thus a boundary layer flow peeling phenomenon may occur. Bubbles in fluid 10 may be more micronized and nanobubble.

The flow path 130 may have a zigzag structure (a zig-zag path in the vertical direction, a zig-zag path on the same plane, or a path in which these are combined) as shown in FIG. 5, and the fluid 10 may be sufficiently stressed. It can be formed to be long enough to be generated, and its cross-sectional area can be formed to be narrow enough to smoothly induce the generation of stress in the fluid.

The flow path 130 may be formed inside the housing 110 and disposed after the bubble generating unit 120 based on the movement path of the fluid 10. Accordingly, the bubbles generated in the fluid 10 primarily by the bubble generating unit 120 may be secondly ultrafine while passing through the flow path 130, resulting in abundantly producing high quality nano bubbles.

In addition, the flow path 130 may be separately provided outside the housing 110. As shown in FIG. 5, a chamber 170 may be connected to the outlet 114 of the housing 110, and a passage 130 may be formed inside the chamber 170. In this case, as the above-described fluid 10, which has undergone the first and second treatments, is thirdly processed by the flow path 130 in the chamber 170, the already formed ultrafine bubbles can be stabilized to more effectively generate nanobubbles. do.

In another form, the passage 130 may be formed only in the upper portion of the housing 110, and a separate passage 130 may not be formed in the lower portion thereof. In addition, since the driving unit 160 is omitted, the first collision member 122 may be rotated only by a non-powered method by the fluid 10 using the lower rotating blade 150.

In such a case, the device may be simplified by omitting the driving unit 160, and the driving cost of the device may be considerably lowered by not using power for the rotation of the first collision member 122. Can be advantageous.

Meanwhile, the flow path 130 may be disposed before the bubble generating unit 120 based on the movement path of the fluid 10 as shown in FIG. 5. As such, the flow path 130 is disposed before the bubble generating unit 120 to pre-treat the fluid 10 flowing into the housing 110 by the shear stress generated until it passes through the boundary layer of the flow path surface. Miniaturization can be made more smoothly.

In addition, the chamber 170 in which the flow path 130 is formed may be disposed at the front and rear ends of the housing 110, respectively, and may be connected to the inlet 112 and the outlet 114, respectively. Therefore, according to the present embodiment, the fluid 10 supplied through the pump 190 and passed through the heterogeneous fluid supply unit 180 is first pretreated in the chamber 170 and then introduced into the housing 110. It is discharged to the outside of the housing 110 through the flow path 130 formed in the lower portion of the housing 110, the bubble generating unit 120 formed thereon, and finally passes through the chamber 170 one more time, and bubbles are generated and Ultrafine can result in nanobubbles.

This embodiment can be configured by connecting a plurality of housings 110 in parallel. That is, the fluid 10 via the pump 190 and the heterogeneous fluid supply unit 180 may be branched and supplied to the plurality of housings 110, respectively. Since the bubble generating unit 120 and the flow path 130 are formed in the housing 110, fine bubbles may be generated according to the complex action of collision, friction, and cavitation as described above. Subsequently, the fluids 10 respectively discharged through the outlet 114 of the housing 110 may be integrated into one again and supplied to the chamber 170 having the flow path 130 to finally achieve ultra-fine bubbles.

According to the present embodiment, the housing 110 (bubble generating unit 120 and the flow path 130) is again provided and arranged in parallel can further improve the nanobubble generating efficiency. In addition, the present embodiment may be modified to arrange the housing 110 and the chamber 170 in parallel, and connect the plurality of housings 110 (including the bubble generating unit 120) in series or the plurality of chambers 170. Of course, it may be connected in series or in parallel (including the euro 130).

Next, detailed structures and modifications of the plurality of collision members of the first nano-micro bubble generator 330 and the second nano-micro bubble generator 412 according to the present exemplary embodiment will be described with reference to FIGS. 6 and 7. Explain about.

FIG. 6 shows examples of the mesh structure of the rotor (first collision member 122) and the stator (second collision member 124), and according to FIG. 6, the first collision member 122 and the second collision The mesh structure of the member 124 may form a lattice in a planar structure. According to FIG. 7, the mesh structure of the first collision member 122 and the second collision member 124 may form a lattice structure in which the cross bars 125 and the cross bars 126 have a constant height difference and are ruggedly stepped. have.

The fluid 10 collides with the crosspiece 125 and the longitudinal rod 126 while passing through the mesh openings 127 having a grid shape, and the first collision member 122 and the second collision member 124 Since relative collisions can promote collision and friction of the fluid 10, the particles of the fluid 10 can be further atomized to effectively produce nanobubbles, thereby significantly increasing the gas dissolution rate.

On the other hand, the present embodiment shows a mesh structure of the lattice form, but the present invention is not limited thereto, and the mesh structure of various forms such as honeycomb form, triangle, and pentagon are also included in the scope of the present invention.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art to which the present invention pertains without departing from the spirit and scope of the present invention as set forth in the claims below It will be appreciated that modifications and variations can be made.

10: fluid
20: fluid source
100: nano bubble generating device
110: housing
112: inlet
114: outlet
120: bubble generating unit
122: first collision member
124: second collision member
125: crossbar
126: stand
127: opening
130: Euro
140: axis of rotation
150: rotary wing
160: drive unit
170: chamber
180: gas supply line
190: fluid transfer unit
195: discharge pipe
300: circulating aquaculture device
310: Aquaculture Tank
320: first filter unit
330: first nano-micro bubble generator
340: Aquaculture water treatment part
342: Aquaculture water inlet tank
344: sterilizer
346: first sterilization tank
348: second sterilization tank
350: contaminant removal unit
352: contaminant flotation
354: pollutant collection tank
356: scraper
358: sludge treatment unit
360: fresh water reservoir
362: fresh water induction pipe
370: first bulkhead
372: second bulkhead
374: third partition
376: fourth partition
378: secondary bulkhead
380: inlet hole
390: second filter unit
400: water temperature control unit
410: oxygen supply
412: second nano-micro bubble generator
420: water replenishment line

Claims (11)

Aquaculture tanks for aquaculture;
A first filter unit for first filtering the contaminants in the aquaculture water discharged from the aquaculture tank;
A first nano-micro bubble generator which generates at least one of nano bubbles and micro bubbles in the cultured water primarily filtered by the first filter part; And
By using at least one of the nano-bubble and the micro-bubble generated by the first nano-micro bubble generator, the contaminants in the cultured water is floated to the surface of the cultured water and removed, and the cultured water from which the contaminants are removed is removed. And aquaculture water treatment for resupplying the aquaculture tank.
The method of claim 1,
Wherein the first nano-micro bubble generator generates at least one of nano bubbles and micro bubbles containing an oxidizing agent including ozone and hydrogen peroxide to generate hydroxyl radicals.
The method of claim 1,
And an oxygen supply unit for supplying oxygen to the cultured water discharged from the cultured water treatment unit.
The method of claim 3,
And the oxygen supply unit further comprises a second nano-micro bubble generator that generates at least one of nano bubbles and micro bubbles containing oxygen in the culture water.
The method of claim 1,
And a water temperature control unit for controlling the temperature of the cultured water discharged from the cultured water treatment unit.
The method of claim 1,
And a second filter unit for secondly filtering the contaminants remaining in the cultured water discharged from the cultured water treatment unit.
The method of claim 1,
And a water replenishment line for supplying replenishment water to the aquaculture water discharged from the aquaculture tank.
The method of claim 1,
The culture tank is arranged in plurality,
And a plurality of said aquaculture tanks are arranged multistage in a longitudinal direction.
The method of claim 1,
The culture water treatment unit,
A sterilization tank for sterilizing the cultured water flowing from the first nano-micro bubble generator using at least one of nano bubbles and micro bubbles;
A contaminant flotation tank that floats contaminants to the surface of the aquaculture water in the aquaculture water introduced from the sterilization tank;
A contaminant collecting tank disposed at an end of the contaminant floating tank to collect contaminants floating from the contaminant floating tank to the aquaculture water surface;
A scraper movably installed on an upper portion of the aquaculture water treatment unit to scrape contaminants floating on the surface of the aquaculture water with the contaminant collection tank; And
And a fresh water storage tank for storing the fresh water from which the contaminants have been removed from the contaminant flotation tank.
The method of claim 1,
The first nano-micro bubble generator,
A housing in which an inlet and an outlet are formed to enable the inflow and outflow of the cultured water;
A bubble generating unit including a plurality of collision members disposed in the fluid movement path inside the housing to generate bubbles in the fluid according to the impact or friction of the cultured water; And
And a flow passage disposed in at least one of the inside and the outside of the housing to guide the bubbles in the fluid to be micronized by the stress generated during the movement of the aquaculture water.
The method of claim 1,
And an automatic supply unit capable of automatically controlling the supply of food and oxygen provided to the aquatic organisms.

Images