KR20240067716A - Apparatus and method for recovering sediment from double-barrier fish farms - Google Patents

Abstract

One embodiment of the present invention provides a device and method for collecting contaminants deposited at the bottom of a cage and sucking them into land. A double cage fish farm contaminant recovery device according to an embodiment of the present invention includes an upper frame; a lower frame formed to correspond to the upper frame; an upper edging net that is coupled to one side of the upper frame and the other side of the lower frame and is formed in a net shape; A guide portion coupled to the lower frame and formed in a hopper shape; and a removal unit coupled to the guide unit and removing contaminants deposited on the guide unit.

Description

Apparatus and method for recovering sediment from double-barrier fish farms}

The present invention relates to a device and method for recovering contaminants from a double cage fish farm, and more specifically, to a device and method for collecting contaminants deposited at the bottom of the cage and sucking them into land.

A cage fish farm refers to a facility that cultivates various types of aquatic life at high density by installing cage nets to a certain extent in a water area. The outline is "田" to provide the space and passage necessary for the installation of cage nets and the management of aquatic life. It can be formed by first manufacturing a shaped scaffolding structure and then connecting and installing a part on the lower side of the scaffolding structure, while connecting a cage structure along the inner peripheral surface of the scaffolding structure.

However, marine pollution such as red tide due to eutrophication is increasing, especially in water areas where cage fish farms are installed. This is because a large amount of particulate matter generated inside the cage water due to the metabolic process of aquaculture organisms or feed waste, etc., spreads around the fish farm. It is presumed that this is caused by long-term stagnation and decay at relatively high water temperatures after sedimentation to the underwater bottom. Accordingly, in order to more accurately determine the amount of pollutants around the fish farm, the amount of sedimentation per unit area of granular sediment components and its composition were determined. Regular investigation and analysis of factors is required.

Republic of Korea Patent No. 10-1082394 (title of the invention: water purification device for reservoirs or coastal areas) involves putting a ship (100) at sea level where a cage fish farm (200) is installed in a coastal area, but receiving sunlight in a limited area. In the ship 100 for expanding the area, a solar power generation plate 110 and a storage battery 120 and a water purification device are provided on one side of the signboard of the ship 100, and the solar power generation plate 110 ) is formed by one side development plate 111 and the other side development plate 112; It is formed to be folded with a hinge 140, and the support bar 199 is supported on the upper side of the deck for the ship 100; The upper side of the support bar 199 is fixed to the assembly part of the hinge 140 of the other power generation plate 112 with a bearing 192 and a flange 193, and a plurality of support rods are installed at the edge of the power generation plate 110. It is disclosed that the power generation power is reinforced by rotating the power generation plate 110 according to the path of sunlight using the wheel 195) and the wheel 190.

However, this conventional technology has a problem in that it cannot improve contamination of the lower surface of seawater by sucking in contaminants located on the upper surface of the seawater rather than the lower surface of the seawater. Therefore, a device is needed to improve the pollution level of the lower surface of the double cage fish farm by sucking in contaminants and feed deposited on the lower surface of the fish farm.

Republic of Korea Patent No. 10-1082394

The purpose of the present invention to solve the above problems is to provide a guide part formed in the shape of a hopper, so that feed moves along the side wall of the guide part to the lower part of the cage.

Additionally, the purpose of the present invention is to prevent environmental pollution by collecting contaminants formed in fish farms.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the description below. There will be.

The configuration of the present invention to achieve the above object includes an upper frame; a lower frame formed to correspond to the upper frame; An upper edging net coupled to one side of the upper frame and the other side of the lower frame and formed in a net shape; A guide portion coupled to the lower frame and formed in a hopper shape; and a removal unit coupled to the guide unit and removing contaminants deposited on the guide unit, wherein the feed moves along the side wall of the guide unit to the lower part of the cage to easily collect contaminants.

In an embodiment of the present invention, the guide unit includes a guide frame formed in a hopper shape with a lower end tapered inward; a lower cage net coupled to one side of the lower frame and the cage frame; And a guide hole formed in the shape of a hole at one end of the guide frame and coupled to the removal part; may be included.

In an embodiment of the present invention, the removal unit includes a recovery pipe coupled to the guide unit and through which contaminants deposited in the guide unit are moved; A recovery valve coupled to the recovery pipe and controlling opening and closing of the recovery pipe; and a suction pump coupled to the recovery pipe and suctioning the contaminants using negative pressure.

In an embodiment of the present invention, the lower cage may further include a height sensor that is coupled to the lower cage and detects the location of accumulated contaminants.

In an embodiment of the present invention, the height detection sensor may further include a control unit that receives the measurement value measured by the height detection sensor and controls the suction pump.

In an embodiment of the present invention, the suction pump may further include a purifying unit that is coupled to the suction pump and purifies and discharges contaminants sucked in from the suction pump.

In an embodiment of the present invention, the lower frame may be provided with negative buoyancy.

In an embodiment of the present invention, a method for recovering contaminants from a double cage fish farm includes the steps of (a) depositing contaminants on the lower part of the guide portion formed in a hopper shape; (b) measuring the height of contaminants deposited on the guide unit by the height sensor; (c) when the measured height of the contaminant exceeds the set height, the control unit controls the removal unit to remove the contaminant; and (d) stopping the operation of the removal unit by the control unit when the height of the contaminant measured by the height sensor is below a set height.

In an embodiment of the present invention, step (a) includes: (a1) moving contaminants to the lower side of the guide along the tapered slope of the guide; and (a2) depositing contaminants on the lower part of the guide part.

In an embodiment of the present invention, step (d) includes: (d1) measuring the height of the contaminant by the height sensor; (d2) stopping the control unit from operating the removal unit when the measured height of the contaminant is below the set height; (d3) a step in which the purifying unit purifies and discharges contaminants sucked in from the suction pump.

The effect of the present invention according to the above configuration is that, by providing a guide part formed in the shape of a hopper, there is an advantage that contaminants can be easily collected by allowing feed to move along the side wall of the guide part to the lower part of the cage.

In addition, the object of the present invention has the advantage of preventing environmental pollution by collecting contaminants formed in fish farms.

The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

Figure 1 is a schematic diagram of a dense double cage fish farm according to an embodiment of the present invention.
Figure 2 is a schematic diagram of a double cage fish farm equipped with a barge according to an embodiment of the present invention.
Figure 3 is a schematic diagram of a microbubble supply device according to an embodiment of the present invention.
Figure 4 is a schematic diagram of a microbubble supply device equipped with a barge according to an embodiment of the present invention.
Figure 5 is a perspective view of a bubble forming unit according to an embodiment of the present invention.
Figure 6 is a cross-sectional view of a bubble forming unit according to an embodiment of the present invention.
Figure 7 is a schematic diagram of an algae generating device for agitating seawater in a fish farm equipped with a hydraulic pump according to an embodiment of the present invention.
Figure 8 is a schematic diagram of an algae generating device for agitating seawater in a fish farm without a hydraulic pump according to an embodiment of the present invention.
Figure 9 is a diagram showing a shaft portion whose angle is changed by having a ball joint of a tidal current generating device according to an embodiment of the present invention.
Figure 10 is a diagram showing a water current generating unit when the current generating device has one nozzle portion according to an embodiment of the present invention.
Figure 11 is a diagram showing a water current generating unit when the current generating device has two nozzle parts according to an embodiment of the present invention.
Figure 12 is a diagram showing seawater circulation by an algae generating device installed in a plurality of densely packed double cage fish farms according to an embodiment of the present invention.
Figure 13 is a schematic diagram of a contaminant recovery device in a double cage fish farm according to an embodiment of the present invention.
Figure 14 is a plan view of a double cage fish farm according to an embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention may be implemented in various different forms and, therefore, is not limited to the embodiments described herein. In order to clearly explain the present invention in the drawings, parts unrelated to the description are omitted, and similar parts are given similar reference numerals throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, combined)" with another part, this means not only "directly connected" but also "indirectly connected" with another member in between. "Includes cases where it is. Additionally, when a part is said to “include” a certain component, this does not mean that other components are excluded, but that other components can be added, unless specifically stated to the contrary.

The terms used in this specification are merely used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a schematic diagram of a dense double cage fish farm according to an embodiment of the present invention, Figure 2 is a schematic diagram of a double cage fish farm equipped with a barge according to an embodiment of the present invention, and Figure 14 is an embodiment of the present invention. This is a floor plan of a double cage fish farm according to .

As shown in Figures 1 to 2 and Figure 14, the double cage fish farm includes an upper frame 100 formed in a direction parallel to the sea level, a lower frame 300 formed at a corresponding position in a direction perpendicular to the sea level, It is coupled to the lower frame 300 and may be provided with a guide frame 510 formed in a hopper shape.

The upper frame 100 is equipped with four pipes and an 'ㄱ' shape and may be provided with four corner fixtures to which the pipes are coupled at both ends, and one corner fixture is attached to one pipe on one side of one pipe. By combining other corner fixtures on the side, the cross-sectional shape in the direction parallel to the sea level can be formed into a square frame shape.

As shown in Figure 14, the cross-sectional shape of the upper frame 100 in a direction parallel to the sea level may be formed in a square shape, but is not limited to this, and the cross-sectional shape of the upper frame 100 in a direction parallel to the sea level Can be formed in various shapes such as circular, oval, and triangular.

The upper frame 100 may be connected to the scaffold 110, and may be provided with buoyancy by a buoy 111 located below the scaffold 110 and may float on the sea level.

The footrest 110 is formed in a plate shape, and a plurality of plates may be formed to surround the outer surface of the upper frame 100 in a direction parallel to the sea level, and the footrest 110 is formed to have a width that allows the user to walk. It can be formed in a shape that surrounds the upper frame 100, so it can be used as a passage for fish farm workers to move between fish farms.

The lower surface of the scaffold 110 may be combined with the buoy 111 having buoyancy, which allows the upper frame 100 and the scaffold 110 to float on the upper surface of the sea surface by the buoyancy of the buoy 111. You can. A plurality of spaced apart fitting grooves may be formed on the lower surface of the footrest 110 in the shape of a groove in the direction from the lower surface of the footrest 110 to the upper surface.

As shown in Figures 1 and 2, the buoy 111 may be formed in a rectangular shape, and is provided with an extension formed to extend upward from one side of the buoy 111 to a diameter and height corresponding to the fitting groove. can do. As a result, the extension of the buoy 111 is fitted into the fitting groove of the footrest 110, so that the bonding force between the foothold 110 and the buoy 111 can be increased, and the foothold 110 and the buoy 111 are held in place by currents or strong waves. ) can easily provide buoyancy to the cage fish farm by preventing the bond from being broken.

The material of the buoy 111 may be made of any one or more materials selected from polyethylene, polypropylene, ethylene vinyl acetate copolymer, vinyl chloride resin, and expanded styrene resin.

The lower frame 300 may be formed at a position corresponding to the upper frame 100 in a direction perpendicular to the sea level, and at least a portion of the lower frame 300 is made of one or more materials selected from weight, concrete, and stainless steel. It is formed and can have negative buoyancy.

The lower frame 300 has four pipes and an 'ㄱ' shape and may be provided with four corner fixtures to which the pipes are coupled at both ends, and one corner fixture is attached to one pipe on one side of one pipe. By combining other corner fixtures on the side, the cross-sectional shape in the direction parallel to the sea level can be formed into a square frame shape.

Unlike the conventional technology in which the shape of the lower part changes depending on the current, in the present technology, the net located between the upper frame 100 and the lower frame 300 is maintained taut due to the negative buoyancy of the lower frame 300, even against the current. The volume of the net can be maintained, and the volume can be narrowed due to changes in the shape of the cage fish farm due to algae, preventing stress to farmed fish, and the lower frame 300 has negative buoyancy to protect against algae. Since the lower frame 300 hardly moves, entanglement of the net can be prevented.

It is coupled to one side of the upper frame 100, is formed in a direction perpendicular to the sea level from one side of the upper frame 100, is coupled to the other side of the lower frame 300, and is formed in a net shape to trap marine life. (200) can be provided.

The upper cage net 200 can be maintained in a taut shape on the seawater by the negative buoyancy of the lower frame 300, so that the volume formed by the net can be maintained without changing even in the current, and the upper cage net 200 The cross-sectional shape in a direction parallel to the sea level may be formed as a square shape.

As shown in Figure 12, the guide frame 510 has a predetermined angle with the lower frame 300 and can be coupled downward from the lower frame 300, and the guide frame 510 has a plurality of guide rods. This can be done, and multiple guide rods can be combined at one point.

In detail, the guide frame 510 may be composed of four guide rods, and each guide rod may be coupled to the corner fixture of the lower frame 300 at an acute angle, and the four pipes may be connected to the midpoint of the lower frame 300. They can be combined into one point at separate locations. The plurality of guide rods may have the same length.

The guide frame 510 formed of four guide rods may be formed in a triangular pyramid shape, and the cross section of the guide frame 510 in a direction perpendicular to the sea level may be formed in a triangular or hopper shape.

The lower cage net 520, which is coupled to one side of the lower frame 300 and is coupled to the four guide frames 510, may be formed in the shape of a surface without a net, which causes contaminants such as feed to be trapped in the lower cage net 520. ) can easily move downward on a slope formed in a tapered shape.

In another embodiment, the lower cage 520 may be formed as a mesh of a fine thickness through which contaminants such as feed cannot pass, and as a result, contaminants such as feed can travel downward along the slope of the lower cage 520. You can move to .

At this time, the lower frame 300 may be provided with an auxiliary net that is coupled to the lower frame 300 in a direction parallel to the sea level, and the auxiliary net has a thickness that allows fish to pass through but not enough for contaminants such as feed to pass through. A net may be provided.

The lower cage 520 may be provided with a height detection sensor 640 at a predetermined distance upward from the guide hole 530. As a result, the height of contaminants deposited on the lower part of the lower cage 520 increases. When the set height is exceeded, the control unit can control and operate the recovery valve 631 and the suction pump 610. As a result, environmental pollution due to decomposition of contaminants can be prevented, and energy waste can be prevented by operating temporarily rather than permanently.

As a result, the upper cage net 200 and the auxiliary net located between the upper frame 100 and the lower frame 300 are formed in the shape of a square pillar with an open top, so that fish are not trapped in the upper cage net 200 and the auxiliary net. Fish can be brought in and cultured, and the auxiliary net can prevent fish from entering the space formed by the lower cage net 520. As a result, it is possible to prevent fish from being stressed or killed by contaminants such as feed located in the guide frame 510.

The guide frame 510 may be provided with a guide hole 530 formed in the shape of a hole at a position where the guide rods of the guide frame 510 are coupled to one point, and the guide hole 530 surrounds the recovery pipe 630. can be formed into a shape.

At least a portion of the guide frame 510 may be formed of one or more materials selected from weight, concrete, and stainless steel, and may be provided with negative buoyancy. As a result, the lower cage net 520 is maintained taut due to the negative buoyancy of the lower frame 300, allowing the net to maintain its volume despite the occurrence of algae, and the volume narrows due to changes in the shape of the cage fish farm due to the algae. It is possible to prevent stress from occurring in farmed fish, and since the guide frame 510 has negative buoyancy, the guide frame 510 is hardly moved even by currents, preventing the net from becoming entangled.

The guide hole 530 may be provided with a guide ring formed in a shape surrounding the guide hole 530, and the midpoint of the guide ring may be formed at a position corresponding to the midpoint of the lower frame 300. At least a portion of the guiding ring may be made of one or more materials selected from weight, concrete, and stainless steel to provide negative buoyancy.

The guiding ring may be combined with the guide frame 510, and a plurality of guide rods may be coupled at a predetermined distance apart along the circumference of the guide frame 510, and the distance between one guide rod and the other guide rods is all formed the same. It can be.

The diameter of the guide hole 530 and the outer diameter of the recovery pipe 630 may be formed to be the same, and the recovery pipe 630 is inserted and fixed into the guide hole 530 to prevent feed and contaminants accumulating in the guide frame 510. It can be discharged into the recovery pipe 630.

Figure 13 is a schematic diagram of a contaminant recovery device in a double cage fish farm according to an embodiment of the present invention.

As shown in FIG. 13, the removal unit is coupled to the guide unit, a recovery pipe 630 through which contaminants are moved to the guide unit, and a suction pump 610 that suctions contaminants using negative pressure. ), is coupled to the suction pump 610, and may include a purification unit 620 that purifies contaminants sucked in from the suction pump 610.

The recovery pipe 630 is formed in a tubular shape, can be inserted into the guide hole 530, and can be coupled to the guiding ring. The recovery pipe 630 may be provided with a recovery valve 631, and the recovery valve 631 may be opened and closed under the control of the controller.

The recovery pipe 630 is inserted into the guide hole 530, is combined with the first recovery pipe 630 and the first recovery pipe 630, and is formed in an 'ㄱ' shape. It may be provided with a connection pipe 632 and a second recovery pipe 630 that is coupled to the connection pipe 632 and is formed in a tubular shape.

The first recovery pipe 630 may be formed of a hard pipe made of metal, and contaminants may flow into one side of the first recovery pipe 630, and contaminants may flow into one side of the first recovery pipe 630. Contaminants may move from one side of the first recovery pipe 630 to the other side.

The recovery valve 631 may be formed on one side of the first recovery pipe 630, and when the recovery valve 631 is closed, contaminants may not enter the first recovery pipe 630 and may be deposited on the lower part of the cage. In addition, when the height of the contaminants measured by the height detection sensor 640 exceeds the set height, the contaminants may flow into one side of the first recovery pipe 630 when the control unit opens the recovery valve 631.

One side of the connector 632 can be coupled to the other side of the first recovery pipe 630, and the other side of the connector 632 can be coupled to one side of the second recovery pipe 630, so that the connector 632 can be connected to the second recovery pipe 630. The first recovery pipe 630 and the second recovery pipe 630 can be combined. One side and the other side of the connection pipe 632 are provided with O-rings to close the joint portion, thereby preventing contaminants from being distributed on the seawater.

In another embodiment, the other side of the connection pipe 632 may be provided with a plurality of coupling portions, and the plurality of coupling portions may be coupled to each of a plurality of second recovery pipes 630 formed in a plurality of double cage fish farms.

As a result, a plurality of double cage fish farms are connected to one suction pump 610, so that one suction pump 610 can simultaneously remove contaminants formed in a plurality of double cage fish farms.

The second recovery pipe 630 may be formed in a hose shape, one side of the second recovery pipe 630 may be connected to the connection pipe 632, and the other side of the second recovery pipe 630 may be connected to the suction pump 610. can be connected with The material of the second recovery pipe 630 may be made of one or more materials selected from Teflon, urethane, polyurethane, and PVC. In another embodiment, the second recovery pipe 630 may be formed as a hard pipe made of metal.

The suction pump 610 can remove and suppress contaminants by suctioning contaminants and feed deposited in the double cage fish farm through the recovery pipe 630. One side of the suction pump 610 may be connected to the first recovery pipe 630, and the other side of the suction pump 610 may be connected to the purification unit 620.

The purification unit 620 and the suction pump 610 may be connected by a suction pipe, and the suction pipe is coupled to the other side of the suction pump 610, and contaminants, feed, and seawater sucked from the suction pump 610 are transferred to the purification unit 620. can be brought in.

The suction pump 610 and the purification unit 620 may be located on the upper surface of the platform 110 of the cage fish farm, and may be equipped with a solar panel and operated using the power generated from the solar panel. In another embodiment, as shown in FIG. 2, the suction pump 610 and the purification unit 620 may be located on a barge and operated using power generated from the barge.

The purification unit 620 can purify water quality by filtering out contaminants, and discharges the purified seawater back into the sea so that the seawater can be circulated. The purification unit 620 may include a filter, and a plurality of filters may be stacked.

In detail, the filter may include a filtration filter formed of a mesh that filters out foreign substances, and a purification filter that purifies the seawater filtered by the filtration filter. The purification filter may be formed as a porous filter with multiple pores.

The purification filter can be formed of multiple layers, including a sediment filter that filters out sediments and impurities, a free-carbon filter that absorbs and removes organic compounds and odors, and a filter that removes foreign substances such as bacteria, organic compounds, heavy metals, and viruses. It may consist of a membrane filter and a post-carbon filter that removes remaining pigment and residual gas. As a result, seawater can be purified by a purification filter.

The purification unit may purify seawater by introducing a chemical into the seawater, and the chemical may be formed of at least one of natural coagulants such as red clay, chestnut, oak, and green tea, and chemical coagulants. As a result, seawater that has not been purified by the purification filter can be purified by chemicals supplied from the lower surface.

Among these, the filtration filter primarily filters contaminants and feed deposited in the cage fish farm from seawater, and the purification filter filters the filtered seawater to purify and discharge the seawater. This allows seawater to circulate and improve water quality.

The control unit can receive the measured value measured by the height sensor 640 and control the recovery valve 631 and the suction pump 610 according to the measured value, and the height of the contaminant measured by the height sensor 640 is If the height is below the set height, the control unit can control and close the recovery valve 631. If the height of the contaminants measured by the height detection sensor 640 is above the set height, the control unit can control the recovery valve 631 to open it. .

The control unit can open the recovery valve 631 and operate the suction pump 610 at the same time. The suction pump 610 operates to suction contaminants located at the top of the opened recovery valve 631 and moves them to the ground to remove the contaminants.

As a result, by treating contaminants such as contaminants and feed located in the double cage fish farm, it is possible to prevent environmental and water pollution caused by the decay of contaminants caused by the contaminants deposited in the double cage fish farm, and the suction pump 610 is constantly operated. Energy waste can be prevented by temporarily operating without being activated.

The contaminant recovery method in a double cage fish farm includes the steps of (a) depositing contaminants in the lower part of the guide part formed in a hopper shape, (b) measuring the height of contaminants deposited in the guide part by a height detection sensor 640, (c) when the measured height of the contaminant exceeds the set height, the control unit controls the removal unit to remove the contaminant, (d) when the height of the contaminant measured by the height detection sensor 640 is below the set height, the control unit controls the removal unit. It may include a step of stopping the operation of.

Step (a) can be performed in which contaminants are deposited on the lower part of the guide formed in a hopper shape, and step (a) is step (a1) in which contaminants are moved to the lower side of the guide along the tapered slope of the guide ( a2) It may include the step of depositing contaminants on the lower part of the guide part.

After step (a) is performed, step (b), in which the height detection sensor 640 measures the height of contaminants deposited on the guide part, may be performed.

After step (b) is performed, step (c), in which the control unit controls the removal unit to remove the contaminant when the measured height of the contaminant exceeds the set height, may be performed. Step (c) may include the step (c1) of the control unit opening the recovery valve 631 and (c2) the control unit operating the suction pump 610.

In step (c1), the measured value measured by the position sensor 640 is received by the control unit, and when the measured height of the contaminant exceeds the set height, the control unit controls the recovery valve 631 to open the recovery valve 631. can do.

In step (c2), the measured value measured by the position sensor 640 is received by the control unit, and when the measured height of the contaminant exceeds the set height, the control unit operates the suction pump 610 to use negative pressure to use the guide unit. Contaminants deposited at the bottom can be removed by suction.

After step (c) is performed, step (d), in which the control unit stops the operation of the removal unit when the height of the contaminant measured by the height detection sensor 640 is below the set height, may be performed.

In step (d), (d1) when the height of the contaminants measured by the height detection sensor 640 is below the set height, the control unit closes the recovery valve 631. (d2) the control unit operates the suction pump 610. It may include a step of stopping, (d3) a step where the purification unit 620 purifies the contaminated water delivered from the suction pump, and (d4) a step of discharging the purified seawater.

In step (d1), the measured value measured by the position sensor 640 is received by the control unit, and when the measured height of the contaminant is below the set height, the control unit controls the recovery valve 631 to close the recovery valve 631. there is.

In step (d2), the measured value measured by the position sensor 640 is received by the control unit, and when the measured height of the contaminant is below the set height, the control unit can stop the operation of the suction pump 610. Because of this, the suction pump 610 operates temporarily rather than constantly, thereby preventing energy waste.

In step (d3), the purification unit 620 purifies the contaminated water delivered from the suction pump, and can purify water quality by filtering out contaminants.

(d4) In the step of discharging the purified seawater, the purified seawater is discharged from the purification unit 620 back into the sea, so that the seawater can be circulated.

Figure 3 is a schematic diagram of a microbubble supply device according to an embodiment of the present invention, Figure 4 is a schematic diagram of a microbubble supply device equipped with a barge according to an embodiment of the present invention, and Figure 5 is an embodiment of the present invention. It is a perspective view of a bubble forming part according to an example, and Figure 6 is a cross-sectional view of the bubble forming part according to an embodiment of the present invention.

As shown in Figures 3 to 6, the double cage bottle equipped with a fine bubble supply device includes an upper frame 100, a lower frame 300 formed at a position corresponding to the upper frame 100, and an upper frame 100. ) a net coupled to one side and the other side of the lower frame 300, a bubble forming part coupled to the lower part and forming fine bubbles, an air compressor 410 connected to the bubble forming part and introducing air into the bubble forming part, It is coupled to the lower frame 300 and may include a sensor unit that measures the water quality of seawater, a control unit that receives water quality information measured by the sensor unit, and controls the air compressor 410.

The bubble forming part may be formed in a position corresponding to the lower frame 300, and the bubble forming part may be formed in the same shape as the lower frame 300. The lower frame 300 and the bubble forming part may be connected by a plurality of spaced apart connectors 310.

The connector 310 may be formed in an 'S' shape and may include a base portion formed in a shape that surrounds at least a portion of the lower frame 300, an extension portion extending to one side of the base portion, and the extension portion. It may be formed in a shape that surrounds at least a portion of the bubble forming portion.

One connector 310 may be coupled in a direction perpendicular to the direction of fluid flow of the lower frame 300, and one connector 310 corresponds to one connector 310 coupled to the lower frame 300. The bubble forming part can be coupled in a direction perpendicular to the flow direction of the fluid at the desired position, and a plurality of connectors 310 are formed to be spaced apart so that the bubble forming part and the lower frame 300 can be firmly fixed. Due to this, the connector 310 can prevent the lower frame 300 and the bubble forming part from being separated by tidal currents by fixing the lower frame 300 and the bubble forming part, and fixes the lower frame 300 and the bubble forming part. It can be made sturdy.

The bubble forming unit is formed in a plurality of spaced apart from the micro filter 430 formed in the form of a pipe, the bubble tube 440 through which air flows, and the bubble tube 440, which is introduced into the micro filter 430 and is spaced apart from each other, and the bubble tube ( It may include a micro hole 441 through which the fluid flowing in 440 is discharged.

The bubble forming unit may be connected to the air compressor 410. The air compressor 410 is a device that compresses air to a certain pressure to form microbubbles, and can compress the air to a certain pressure lower than the saturation pressure, store it, and discharge it. there is.

As shown in Figure 3, the air compressor 410 can be located on the upper surface of the scaffold 110 of the cage fish farm, and can be equipped with a solar panel and operated using the power generated from the solar panel. In another embodiment, as shown in FIG. 4, the air compressor 410 may be located on a barge and operated using power generated by the barge.

After sucking in air from the atmosphere using a drain valve, the air is multi-stage compressed using the reciprocating motion of the piston or the rotating motion of the vane, and then goes through an intermediate cooling process to form high-pressure compressed air. The air compressor (410) may be performed by one or more methods selected from centrifugal, axial, linear, and reciprocating methods.

The air compressor 410 may be connected to the bubble pipe 420, and the bubble pipe 420 may be provided with a bubble valve 421, and the bubble valve 421 flows from the air compressor 410 to the bubble pipe 420. The amount of gas flowing into (420) can be adjusted, and when the bubble valve (421) is opened, the air is released by the pressure difference between the air compressor (410) and the bubble valve (421) without being connected to a separate pump or compressor. Compressed air located in the compressor 410 may be moved to the bubble pipe 420.

The bubble pipe 420 is combined with the air compressor 410 and the bubble pipe 440, so that the compressed air staying in the air compressor 410 moves through the bubble pipe 420, and the compressed air staying in the bubble pipe 420 is It may be introduced into the bubble pipe 440.

As shown in Figures 5 and 6, the bubble tube 440 may be formed in the shape of a pipe, and a portion of the bubble tube 440 may be provided with a micro hole 441 formed in the shape of a hole. The bubble tube 440 may be provided with a plurality of micro-holes 441 spaced apart from each other in a direction perpendicular to the diameter of the bubble tube 440.

The micro hole 441 can discharge air located inside the bubble pipe 440, and the micro hole 441 is formed within the bubble pipe 440 in the direction of the upper frame 100, so that the micro bubbles are released into the bubble pipe 440. (440) The amount of dissolved oxygen in seawater discharged from the lower frame 300 toward the upper frame 100 and located inside the guide frame 510 may increase.

The first hole distance, which is the distance between one micro hole 441 and another micro hole 441, and the second hole distance, which is the distance between another micro hole 441 and another micro hole 441, can be formed to be the same. there is.

As a result, a plurality of fine holes 441 are uniformly formed in the bubble pipe 440, so that the compressed air discharged from the bubble pipe 440 can be discharged uniformly into the cage fish farm, thereby uniformly improving the water quality in the cage fish farm and seawater The amount of dissolved oxygen can be increased.

Compressed air introduced over a portion of the bubble pipe 440 is continuously supplied and can move over the entire bubble pipe 440, and the compressed air remaining inside the bubble pipe 440 is replaced with new compressed air injected from the air compressor 410. It can be discharged through a plurality of micro holes 441 formed in the bubble tube 440. At this time, the plurality of micro holes 441 can discharge compressed air at the same pressure, and uniformly supply micro bubbles into the fish farm at 700 L/h to uniformly increase the amount of dissolved solids in seawater located within the double cage fish farm. You can.

The micro filter 430 may be formed in a pipe shape, and the inner surface of the micro filter 430 may be coupled to the outer surface of the bubble tube 440. The micro filter 430 may be formed as a filter formed with a micro structure. As a result, the compressed air drawn into the micro filter 430 flows between the structures of the filter due to the micro structure and is retained by the micro filter 430. Sea water and compressed air may dissolve.

The permeation rate of seawater and dissolved compressed air can be controlled by a microfilter to form fine micro-sized bubbles, and the microbubbles discharged from the microfilter can be released into the water to increase the amount of dissolved oxygen in the water.

Microbubbles with a diameter of the micrometer level have an increased bubble surface area compared to millimeter-sized bubbles, and thus provide strong adsorption for organic matter, thereby maximizing the organic matter removal efficiency and greatly improving the dissolved oxygen supply ability. Experimentally, it was confirmed that the dissolved oxygen supply rate was 400% higher than that of millimeter-sized bubbles.

The sensor unit may include a dissolved oxygen sensor 301 that measures the amount of dissolved oxygen in seawater and a water temperature sensor 302 that measures the water temperature of seawater, and the value measured by the sensor unit can be transmitted to the control unit.

The control unit can receive measured values from the dissolved oxygen sensor 301 and the water temperature sensor 302 located in the sensor unit and control the bubble valve 421 or the air compressor 410 according to the measured values.

When the dissolved oxygen sensor 301 measures the dissolved oxygen amount of seawater and then transmits it to the control unit, the dissolved oxygen amount of seawater is less than the set dissolved oxygen amount. At the same time, when the water temperature sensor 302 measures the water temperature of seawater and transmits it to the control unit, the dissolved oxygen amount of seawater is less than the set dissolved oxygen amount. When the water temperature exceeds the set water temperature, the controller can control the bubble valve 421 to open the bubble valve 421 and the air compressor 410.

When the amount of dissolved oxygen measured by the dissolved oxygen sensor 301 is greater than the set dissolved oxygen amount and the seawater temperature measured by the water temperature sensor 302 is less than the set water temperature, the control unit controls the bubble valve 421 to open the bubble valve 421. And the air compressor 410 can be closed.

That is, when the dissolved oxygen amount of seawater measured by the dissolved oxygen sensor 301 is less than the set dissolved oxygen amount and the seawater temperature measured by the water temperature sensor 302 exceeds the set water temperature, the bubble valve 421 is opened by the control unit. It can be done, and the air compressor 410 can be operated.

When the dissolved oxygen amount of seawater measured by the dissolved oxygen sensor 301 is greater than the set dissolved oxygen amount and the water temperature of the seawater measured by the water temperature sensor 302 is lower than the set water temperature, the bubble valve 421 may be closed by the control unit, Operation of the air compressor 410 may be stopped.

The method of increasing dissolved oxygen in a double cage fish farm includes the steps of (a) providing a double cage fish farm including an upper frame 100, a lower frame 300, and an upper cage net 200, (b) the water temperature of seawater in the sensor unit. and measuring the dissolved oxygen amount, (c) when the water temperature of the seawater measured by the sensor unit exceeds the set temperature and the dissolved oxygen amount of the seawater measured by the sensor unit is less than the set dissolved oxygen amount, the control unit executes the air compressor 410. Step, (d) the air formed in the air compressor 410 is drawn into the microbubble supply device to form microbubbles, and (e) the water temperature of the seawater measured in the sensor unit is below the set temperature, and the When the amount of dissolved oxygen in seawater exceeds the set dissolved oxygen amount, the control unit may include a step of stopping operation of the air compressor 410.

Here, step (a) may consist of providing a double cage fish farm including an upper frame 100, a lower frame 300, and an upper cage net 200, and the upper frame 100 is provided with buoyancy. And the lower frame 300 is equipped with negative buoyancy, so that the double cage fish farm floats on the sea level by the buoyancy of the upper frame 100, and at the same time, the lower frame 300 moves by the tide due to the negative buoyancy of the lower frame 300. This is suppressed so that the volume of the upper cage 200 coupled to the upper frame 100 and the lower frame 300 can be maintained constant.

After step (a) is performed, step (b) of measuring the temperature and dissolved oxygen of seawater in the sensor unit may be performed. Step (b) may include (b1) measuring the amount of dissolved oxygen in seawater using a dissolved oxygen sensor, and (b2) measuring the water temperature of seawater using a water temperature measurement sensor.

In step (b1), the dissolved oxygen amount of seawater can be measured by the dissolved oxygen amount sensor formed in the sensor unit, and the measured value can be received by the control unit.

In step (b2), the water temperature of the seawater can be measured by the water temperature measurement sensor formed in the sensor unit, and the measured value can be received by the control unit.

After step (b) is performed, in step (c), when the water temperature of the seawater measured by the sensor unit exceeds the set temperature and the dissolved oxygen amount of the seawater measured by the sensor unit is less than the set dissolved oxygen amount, the control unit operates the air compressor (410). ) may be performed.

In step (c), if the water temperature measurement value transmitted to the control unit exceeds the set temperature and the dissolved oxygen amount transmitted to the control unit is less than the set dissolved oxygen amount, the control unit may operate the air compressor 410 and open the bubble valve 421. there is.

After step (c) is performed, step (d), in which the air formed in the air compressor 410 is introduced into the microbubble supply device to form microbubbles, may be performed.

Step (d) is (d1) the step of moving the compressed air formed in the air compressor 410 to the bubble pipe 420 (d2) the step of moving the compressed air remaining in the bubble pipe 420 to the bubble pipe 440 ( d3) A step in which the compressed air remaining in the bubble pipe 440 is discharged through the micro hole 441 provided in the bubble pipe 440. (d4) The compressed air discharged through the micro hole 441 is discharged to the micro filter 430. The introduction step (d5) may include the step of forming microbubbles.

In step (d1), the compressed air formed in the air compressor 410 can be moved to the bubble pipe 420 by the pressure difference when the bubble valve 421 is opened, and the degree of opening and closing of the bubble valve 421 is controlled. This allows you to control the amount of air movement.

In step (d2), the compressed air remaining in the bubble pipe 420 can be moved to the bubble pipe 440, and the compressed air moved to the bubble pipe 440 is spread to the entire area of the bubble pipe 440 by new compressed air. can be moved

In step (d3), the compressed air remaining in the bubble tube 440 may be discharged through the fine hole 441 formed in the shape of a hole in the bubble tube 440 due to new compressed air continuously flowing in.

In step (d4), the compressed air discharged through the fine hole 441 can be introduced into the micro filter 430, and the compressed air contained in the micro filter 430 flows to the micro filter 430 and the micro filter 430. It can dissolve with the seawater it contains.

In step (d5), the permeation amount of the compressed air dissolved in seawater is controlled by the micro filter 430, and when discharged from the micro filter 430, it forms micro-sized fine bubbles, which can increase the amount of dissolved oxygen in sea water.

After step (d) is performed, if the water temperature of the seawater measured by the sensor unit in step (e) is below the set temperature and the dissolved oxygen level of the seawater measured by the sensor unit is above the set dissolved oxygen amount, the control unit opens the bubble valve 421. Steps of closing and stopping operation of the air compressor 410 may be performed.

Step (e) is the step (e1) where the sensor unit measures the water temperature and dissolved oxygen amount of seawater. (e2) The water temperature of the seawater measured by the sensor unit is below the set temperature, and the dissolved oxygen amount of seawater measured by the sensor unit is the set dissolved oxygen amount. In case of an abnormality, the control unit may include a step of closing the bubble valve 421 and stopping the operation of the air compressor 410.

In step (e1), the dissolved oxygen amount of the seawater can be measured by the dissolved oxygen sensor and the measured value can be received by the control unit, and the water temperature of the seawater can be measured by the water temperature measurement sensor formed in the sensor unit and the measured value can be received by the control unit. .

In step (e2), if the seawater temperature is below the set temperature and the dissolved oxygen level of the seawater measured by the sensor unit is above the set dissolved oxygen level, the control unit may close the bubble valve 421 and the air compressor 410.

Figure 7 is a schematic diagram of an algae generating device for agitating seawater in a fish farm provided with a hydraulic pump 710 according to an embodiment of the present invention, and Figure 8 is provided with a hydraulic pump 710 according to an embodiment of the present invention. It is a schematic diagram of an algae generator for agitating seawater in a fish farm, and Figure 9 is a diagram showing a shaft portion 730 whose angle is changed by having a ball joint 720 of the algae generator according to an embodiment of the present invention. .

As shown in Figures 7 to 12, the upper frame 100, the lower frame 300 formed at a position corresponding to the upper frame 100, one side of the upper frame 100, the other side of the lower frame 300, and A double cage fish farm having an upper cage net 200 formed in a net shape and a guide part formed in a hopper shape, a shaft portion 730 formed at the center of a plurality of double cage fish farms, and coupled to the shaft portion 730. It is combined with a water current generation unit that stirs the seawater and the lower frame 300, and may include a sensor unit that measures the water temperature of the seawater and a control unit that receives the measured value from the sensor unit and controls the water current generation unit. .

The shaft portion 730 may be formed at the center of a plurality of double cage fish farms, and as shown in FIG. 12, the first cage fish farm 11, the second cage fish farm 12, the third cage fish farm 13, and In the plurality of double cage fish farms where the 4th cage fish farm (14) is concentrated around one point, the 1st cage fish farm (11), the 2nd cage fish farm (12), the 3rd cage fish farm (13), and the 4th cage fish farm. (14) An algae generating device is coupled to the center, which can generate algae to agitate seawater located in a plurality of double cage fish farms.

As shown in FIG. 9, the shaft portion 730 includes a first shaft 731 connected to the hydraulic pump 710 and having a flow path, and a second shaft 732 connected to the first axis 731 and having a flow path. ), the second axis 732 is coupled, and may include a ball joint 720 that connects the first axis 731 and the second axis 732 and has a flow path.

The ball joint 720 can be combined with the second shaft 732, and communication is possible, so that the fluid moved from one side of the first shaft 731 to the other side is introduced into the ball joint 720 and then connected to the ball joint 720. The fluid remaining in may be introduced into one side of the second axis 732 and moved from one side to the other side.

In addition, the ball joint 720 may be formed to be rotatable, and as a result, the second axis 732 coupled to the ball joint 720 is rotated due to the movement of the bird and the discharge of fluid to form the first axis 731. ) can be rotated at a predetermined angle with the center line. Because of this, the seawater located in a plurality of cage fish farms can be stirred at various heights and angles to facilitate circulation of the seawater.

As shown in FIG. 9, the central axis of the first axis 731 is C and the central axis of the second axis 732 is P, and when there is no tidal flow or fluid discharged from the water current generating unit, FIG. 9 ( As shown in a), the central axis C of the first axis 731 and the central axis P of the second axis 732 may be located at the same position.

The fluid injection amount of the hydraulic pump 710 can be determined based on the measured value of dissolved oxygen in seawater and the water temperature, and the second axis 732 is controlled by a ball bearing according to the fluid injection amount of the hydraulic pump 710 and the movement of the tidal current. The central axis P of the second axis 732 may be rotated at a predetermined angle from the central axis C of the first axis 731, and the center of the first axis 731 may be rotated at a predetermined angle according to the fluid injection amount of the hydraulic pump 710. The angle formed between axis C and the central axis P of the second axis 732 may change.

When the measured dissolved oxygen amount is lower than the set dissolved oxygen amount or the measured temperature of seawater is high, the control unit operates with the fluid discharge amount of the hydraulic pump 710 increased, so that fluid can be discharged from the water flow generation unit, and the injection force As a result, the central axis P of the second axis 732 can be rotated from the central axis C of the first axis 731 at an angle b.

When the fluid discharge amount of the hydraulic pump 710 is small, the central axis P of the first axis 731 and the central axis C of the second axis 732 can be rotated at an angle a, as shown in FIG. 9(b). When the fluid discharge amount of the hydraulic pump 710 is large, the central axis P of the first axis 731 and the central axis C of the second axis 732 rotate at an angle b, as shown in FIG. 9(c). It can be. Here b can be larger than a.

When the central axis C of the first axis 731 and the central axis P of the second axis 732 are rotated at a predetermined angle, a current generating device and method for agitating seawater in a fish farm agitates seawater in a wider water area. It can increase the water quality of a wider range of cage fish farms and improve the amount of dissolved oxygen.

The first shaft 731 may be formed in a pipe shape, one side of the first shaft 731 may be coupled to the hydraulic pump 710, and the other side of the first shaft 731 may be connected to the ball joint 720. You can. The first shaft 731 may be provided with a flow path, and the first shaft 731 is connected to the hydraulic pump 710 so that seawater discharged from the hydraulic pump 710 flows into one side of the first shaft 731. It may be discharged to the other side of the first axis 731. The flow path of the first shaft 731 and the ball joint 720 may be formed in communication, so that fluid discharged from the other side of the first shaft 731 may be introduced into the flow path formed in the ball joint 720.

The second shaft 732 may be formed in a pipe shape, and one side of the second shaft 732 may be formed by being combined with the ball joint 720, and the second shaft 732 and the ball joint 720 may be in communication. can be formed. The other side of the second axis 732 may be coupled to a water current generating unit. The second shaft 732 may have a flow path, and the fluid discharged from the ball joint 720 is drawn into one side of the second shaft 732 and moves from one side of the second shaft 732 to the other side. The fluid remaining in the shaft 732 may be introduced into the water flow generating unit.

The hydraulic pump 710 may be located on the upper surface of the scaffold 110 of the cage fish farm and may be equipped with a solar panel and operated using the power generated from the solar panel. In another embodiment, as shown in Figure 2, the hydraulic pump 710 may be located on a barge and may be operated using power generated by the barge.

Figure 10(a) is a plan view showing a water flow generating unit when the current generating device has one nozzle portion according to an embodiment of the present invention, and Figure 10(b) is a nozzle of the current generating device according to an embodiment of the present invention. It is a side view showing the water flow generating unit when there is only one part, and Figure 10(c) is a front view showing the water flow generating unit when there is only one nozzle part of the current generating device according to an embodiment of the present invention.

As shown in FIG. 10, the water flow generating unit includes a housing 740, a nozzle portion eccentrically formed inside the housing 740, and a propeller portion 750 coupled to the housing 740 and having a plurality of blades 751. ) and the shaft portion 730, and may include a hydraulic pump 710 that pumps fluid and delivers the fluid to the nozzle portion.

The housing 740 may be formed in a streamlined shape, and a cross-section of the housing 740 formed in a direction perpendicular to sea level may be formed in a circular shape. The housing 740 may be provided with an axial groove, which is a groove formed in a direction perpendicular to the sea surface, and at least a portion of the second shaft 732 may be inserted into and coupled to the axial groove. The axial groove and the second shaft 732 can be coupled with a rotating bearing 752, and as a result, the water flow generating unit can be rotated by the movement of the current and the discharge of fluid on the axis of the second shaft 732. .

The housing 740 is coupled to the axial groove and may include a nozzle portion formed in a direction parallel to the sea surface. Because of this, the axial groove and the nozzle portion are formed in a shape that communicates with each other, so that fluid moved from the other end of the second shaft 732 to the axial groove can stay in the axial groove and then move to the nozzle portion.

As shown in FIG. 10(c), the nozzle portion may be formed eccentrically from the central axis of the housing 740, which is formed in a direction perpendicular to the sea level of the housing 740.

That is, it may be formed eccentrically in one direction of the housing 740 from C', which is the central axis of the nozzle portion formed in a direction perpendicular to the sea level of the housing 740. The nozzle portion may be formed in a direction parallel to the central axis of the housing 740, which is formed in a direction parallel to the sea level. As a result, fluid is discharged from the nozzle portion eccentrically from the central axis of the housing 740, and the water flow generating unit can be rotated on the axis of the second axis 732.

The nozzle portion communicates with the side groove of the housing 740 and is formed in communication with the nozzle groove, a nozzle groove formed in the shape of a groove to the surface of the housing 740 in a direction parallel to the sea level, and extending from the surface of the housing 740 in the outer direction. An extension fixture formed by extending may be provided.

As shown in Figure 10(b), the nozzle groove may be formed in a shape tapered in one direction from the other side of the nozzle groove coupled with the axial groove, and the diameter of the other side of the nozzle groove is formed to be larger than the diameter of one side of the nozzle groove. When the fluid moves from the other side of the nozzle groove to one side, the pressure increases and high-pressure water can be formed, and the water quality can be improved by easily agitating the seawater.

The outer surface of the extension fixture may be coupled to the inner surface of the rotation bearing 752 of the propeller unit 750. Due to this, the nozzle unit and the propeller unit 750 are combined, and the propeller unit 750 is rotated by the fluid discharged from the nozzle unit, thereby agitating the seawater.

Figure 11(a) is a plan view showing a water flow generating unit when the current generating device has two nozzle units according to an embodiment of the present invention, and Figure 11(b) is a nozzle of the current generating device according to an embodiment of the present invention. It is a side view showing the water flow generating unit when there are two parts, Figure 11(c) is a front view showing the water flow generating unit when there are two nozzle parts of the current generating device according to an embodiment of the present invention, and Figure 12 is an embodiment of the present invention. This is a diagram showing seawater circulation by algae generating devices installed in a plurality of densely packed double cage fish farms according to an embodiment.

As shown in FIG. 11, in another embodiment, the housing 740 includes an axial groove, which is a groove formed in a direction perpendicular to the sea level, a connection groove formed in a direction parallel to the sea level, formed in a direction perpendicular to the axial groove, and coupled to the axial groove (FIG. 742), a first nozzle portion 741 that is coupled to one end of the connection groove 742 and connected in a direction parallel to the connection groove 742, and is coupled to the other end of the connection groove 742 and has a connection groove 742 It may be provided with a second nozzle unit 743 connected in a direction parallel to .

The axial groove and the connecting groove 742 may be formed in communication, and the length from the axial groove to one end of the connecting groove 742 and the length from the axial groove to the other end of the connecting groove 742 may be formed to be the same, The connection groove 742 and the first nozzle portion 741 and the second nozzle portion 743 may be formed in communication.

The first nozzle portion 741 communicates with the connection groove 742 of the housing 740 and communicates with the first nozzle groove and the nozzle groove formed in a direction parallel to the sea level, and extends from the surface of the housing 740 in the outer direction. It may be provided with a first extension fixture that is formed by extending.

The second nozzle portion 743 communicates with the connection groove 742 of the housing 740 and communicates with the second nozzle groove and the second nozzle groove formed in a direction parallel to the sea level, and is connected to the outer portion from the surface of the housing 740. It may be provided with a second extension fixture that extends in one direction.

The first nozzle unit 741 and the second nozzle unit 743 may be formed in directions that are symmetrical to each other in a direction perpendicular to the connection groove 742, and as a result, the fluid ejected from the first nozzle unit 741 Since the direction of the fluid ejected from the second nozzle unit 743 is symmetrical, the water flow generating unit can be easily rotated on the shaft unit 730.

As shown in Figure 11 (b), the first nozzle groove may be formed in a shape tapered in one direction from the other side of the first nozzle groove coupled to one end of the connection groove 742, and the first nozzle groove The diameter of the other side is formed to be larger than the diameter of one side of the first nozzle groove, so that when the fluid moves from the other side of the first nozzle groove to one direction, the pressure increases and high-pressure water is formed, making it possible to easily agitate seawater.

As shown in Figure 11 (b), the second nozzle groove may be formed in a tapered shape from one side of the second nozzle groove coupled to the other end of the connection groove 742 to the other side, and the second nozzle groove may be formed in a tapered shape. The diameter of one side is larger than the diameter of the other side of the second nozzle groove, so when the fluid moves from one side of the second nozzle groove to the other side, the pressure increases and high-pressure water is formed, making it possible to easily stir seawater.

The first nozzle unit 741 may be combined with the first propeller unit 750, and the second nozzle unit 743 may be combined with the second propeller unit 750. The rotation direction and the rotation direction of the second propeller unit 750 may be formed to be the same. Because of this, the water current generating unit can be easily rotated on the shaft portion 730 to agitate the seawater.

As shown in FIG. 11 (c), the first nozzle unit 741 may be formed eccentrically in one direction of the housing 740 from C', which is the central axis of the nozzle unit formed in a direction perpendicular to the sea level of the housing 740. there is.

The second nozzle unit 743 may be formed eccentrically from C', which is the central axis of the nozzle unit formed in a direction perpendicular to the sea level of the housing 740, toward the other side of the housing 740.

As a result, the fluid is discharged from the nozzle unit eccentrically in one direction from the central axis of the housing 740, so that the water flow generating unit can be rotated on the axis of the second axis 732, and in the other direction from the central axis of the housing 740. The second nozzle unit 743 can eccentrically discharge fluid to add rotational force. At this time, the rotation direction of the first propeller unit 750 coupled with the first nozzle unit 741 is formed to be the same as the rotation direction of the second propeller unit 750 coupled with the second nozzle unit 743, thereby generating water flow. It can add rotational force to the unit.

The propeller unit 750 may include a rotary bearing 752 that is coupled to the nozzle unit and rotatably supports the propeller unit 750, and a wing 751 that is coupled to the rotary bearing 752 and rotated by the current. You can.

The inner surface of the rotary bearing 752 may be coupled to the outer surface of the nozzle extension fixture, and the rotary bearing 752 rotatably supports the wing 751 so that the wing 751 is mounted on the rotary bearing 752. It can be rotated to generate rotational force in the water current generation unit.

The wings 751 may be coupled to the outer surface of the rotary bearing 752, and a plurality of wings 751 may be formed on one rotary bearing 752.

The propeller unit 750 may include a first propeller unit 750 coupled to the first nozzle unit 741, a second propeller unit 750 coupled to the second nozzle unit 743, and the first propeller unit 750. The rotation direction of the blade 751 of the unit 750 and the rotation direction of the blade 751 of the second propeller unit 750 are rotated in the same direction perpendicular to the sea level, as shown in Figure 11(b). You can.

As shown in Figure 12, the seawater in a plurality of densely packed double cage fish farms can be rotated by spraying fluid on the axis of the shaft portion 730 to generate a current. As a result, the shaft portion 730 is referenced. By agitating and circulating the seawater in multiple cage fish farms at 33 tons/min (9 knots), water quality can be increased, the amount of dissolved oxygen can be increased, and the water temperature can be lowered.

The shaft portion 730 may be coupled to a hydraulic pump 710, and the hydraulic pump 710 can move the fluid by sucking water located in seawater and pumping it to the shaft portion 730. Due to this, the fluid pumped from the hydraulic pump 710 can be drawn into one end of the first shaft 731 and moved from one end of the first shaft 731 to the other end, and the fluid remaining at the other end of the first shaft 731 can be moved to the other end of the first shaft 731. may be introduced into the joint 720, and the fluid introduced into the ball joint 720 may be introduced into one end of the second axis 732 and may be moved from one end of the second axis 732 to the other end, The fluid staying at the other end of the second shaft 732 may be drawn into the shaft groove of the water flow generating unit, and after the fluid staying in the shaft groove is drawn into the extension groove, the fluid staying in the extension groove may be drawn into the nozzle portion.

The fluid staying in the extension groove can be moved to one end and the other end of the extension groove, and the fluid staying at one end of the extension groove is drawn into the other end of the first nozzle groove of the first nozzle portion 741 and is moved to the other end of the first nozzle groove. Once it is moved in the direction, it can be discharged.

The fluid remaining at the other end of the extension groove may be drawn into one end of the second nozzle groove of the second nozzle unit 743 and may be discharged by moving from one end of the second nozzle groove to the other end.

As a result, the fluid is discharged from the nozzle portion formed eccentrically from the central axis of the housing 740, causing the water flow generating unit to rotate on the shaft portion 730. As a result, the fluid is rotated and discharged on the shaft portion 730, agitating the seawater. can do.

In another embodiment, as shown in FIG. 8, even when a pump is not included, the water current generating unit can be rotated by the movement of the tidal current to agitate the seawater.

The control unit may control the hydraulic pump 710 by receiving the measured value from the sensor unit that measures the quality of seawater.

The sensor unit may include a dissolved oxygen sensor 301 that measures the amount of dissolved oxygen in seawater and a water temperature sensor 302 that measures the water temperature of seawater, and the value measured by the sensor unit can be transmitted to the control unit.

The control unit may receive measured values from the dissolved oxygen sensor 301 and the water temperature sensor 302 located in the sensor unit and control the bubble valve 421 or the air compressor 410 according to the measured values.

When the dissolved oxygen sensor 301 measures the dissolved oxygen amount of seawater and then transmits it to the control unit, the dissolved oxygen amount of seawater is less than the set dissolved oxygen amount. At the same time, when the water temperature sensor 302 measures the water temperature of seawater and transmits it to the control unit, the dissolved oxygen amount of seawater is less than the set dissolved oxygen amount. When the water temperature exceeds the set water temperature, the control unit can control the hydraulic pump 710 to operate the hydraulic pump 710.

When the amount of dissolved oxygen measured by the dissolved oxygen sensor 301 is greater than the set dissolved oxygen amount and the seawater temperature measured by the water temperature sensor 302 is less than the set water temperature, the control unit controls the hydraulic pump 710 to operate the hydraulic pump 710. can be closed.

The algae generation method for agitating seawater in the fish farm includes (a) the steps of combining a plurality of double cage fish farms, (b) the steps of combining an algae generating device at the center of a plurality of double cage fish farms, (c) the sensor part of the seawater Measuring the water temperature and dissolved oxygen amount, (d) when the water temperature of the seawater measured by the sensor unit exceeds the set temperature and the dissolved oxygen amount of the seawater measured by the sensor unit is less than the set dissolved oxygen amount, the control unit operates the hydraulic pump 710 (e) the step of agitating the seawater by rotating the water current generating unit; and (f) when the water temperature of the seawater measured by the sensor unit is below the set temperature and the amount of dissolved oxygen in the seawater measured by the sensor unit is above the set dissolved oxygen amount. The control unit may include a step of stopping operation of the hydraulic pump 710.

Step (a) is a step in which a plurality of double cage fish farms are combined. In this embodiment, the first cage fish farm (11), the second cage fish farm (12), the third cage fish farm (13), and the fourth cage fish farm ( 14) can be combined to become dense.

In detail, the first cage fish farm (11) and the second cage fish farm are combined on one side in a direction parallel to the first cage fish farm (11), and the third cage fish farm (13) is on one side of the third cage fish farm (13). The fourth cage fish farm can be combined in a parallel direction, and a third cage fish farm can be connected to the other side of the first cage fish farm (11) and the second cage fish farm in a direction corresponding to the first cage fish farm (11) and the second cage fish farm. Fish farms and 4th cage fish farms can be combined. In other words, multiple cage fish farms can be formed densely centered on one point.

After step (a), step (b), in which the algae generating device is coupled to the center of a plurality of double cages, may be performed. In step (b), an algae generating device may be combined at the center of the first cage fish farm 11, the second cage fish farm, the third cage fish farm, and the fourth cage fish farm, which are formed densely around one point.

In detail, the center of a plurality of cage fish farms can be combined with one end of the shaft 730, and the other end of the shaft 730 and the water current generating unit can be combined to generate algae in seawater to agitate the seawater.

After step (b), step (c), where the sensor measures the water temperature and dissolved oxygen in the seawater, can be performed, and step (c) measures the dissolved oxygen amount in seawater in (c1) the dissolved oxygen sensor. Measuring step (c2) may include measuring the water temperature of seawater using a water temperature measurement sensor.

In step (c1), the dissolved oxygen amount of seawater can be measured by the dissolved oxygen amount sensor formed in the sensor unit, and the measured value can be received by the control unit.

In step (c2), the water temperature of the seawater can be measured by the water temperature measurement sensor formed in the sensor unit, and the measured value can be received by the control unit.

After step (c) is performed, in step (d), when the water temperature of the seawater measured in the sensor unit exceeds the set temperature and the dissolved oxygen amount in the seawater measured in the sensor unit is less than the set dissolved oxygen amount, the control unit operates the hydraulic pump 710. Steps for operating may be performed.

In step (d), when the water temperature measurement value transmitted to the control unit exceeds the set temperature and the dissolved oxygen amount transmitted to the control unit is less than the set dissolved oxygen amount, the control unit may operate the hydraulic pump 710.

After step (d) is performed, step (e), in which the water current generating unit rotates to agitate the seawater, may be performed. Step (e) may include (e1) the step of discharging fluid from the nozzle unit and rotating the water flow generating unit, and (e2) the step of rotating the propeller unit 750.

In step (e1), the fluid pumped by the hydraulic pump 710 may be introduced into one end of the first shaft 731 and moved from one end of the first shaft 731 to the other end, The fluid remaining at the other end of the first axis 731 may be introduced into the ball joint 720, and the fluid drawn into the ball joint 720 may be introduced into one end of the second axis 732. ) can be moved from one end to the other end, and the fluid staying at the other end of the second shaft 732 can be introduced into the shaft groove of the water flow generating unit, and after the fluid staying in the shaft groove has been drawn into the extension groove, the fluid staying in the extension groove can be moved to the other end. Fluid may enter the nozzle unit.

The fluid staying in the extension groove can be moved to one end and the other end of the extension groove, and the fluid staying at one end of the extension groove is drawn into the other end of the first nozzle groove of the first nozzle portion 741 and is moved to the other end of the first nozzle groove. Once it is moved in the direction, it can be discharged.

The fluid remaining at the other end of the extension groove may be drawn into one end of the second nozzle groove of the second nozzle unit 743 and may be discharged by moving from one end of the second nozzle groove to the other end.

The first nozzle portion 741 is located eccentrically in one direction from the central axis of the housing 740, and the second nozzle portion 743 is positioned eccentrically in the other direction from the central axis of the housing 740 to form the first nozzle. When fluid is discharged from the groove and the second nozzle groove, the housing 740 may be rotated on the axis of the shaft portion 730 in the water flow discharge direction.

At this time, the central axis P of the second axis 732 may be rotated at a predetermined angle from the central axis C of the first axis 731 due to the flow of tidal currents and the flow of high-pressure water, and the amount of dissolved oxygen in seawater can be measured. The fluid injection amount of the hydraulic pump 710 can be determined based on the measured value and water temperature, and the second axis 732 is rotated by a ball bearing according to the fluid injection amount of the hydraulic pump 710 and the movement of the tidal current to rotate the first axis. The angle between the central axis C of 731 and the central axis P of the second axis 732 may change.

In step (e2), the housing 740 is rotated by the flow of high-pressure water sprayed from the first nozzle part 741 and the second nozzle part 743, and the first extension of the first nozzle part 741 The first propeller part 750 fixed to the body and the second propeller part 750 fixed to the second extension fixture of the second nozzle part 743 can be rotated to facilitate rotation of the housing 740. .

The water current generation unit sprays fluid on the axis of the shaft 730 and rotates to generate algae. This agitates the seawater in a plurality of cage fish farms based on the shaft 730 to increase water quality and the amount of dissolved oxygen. can increase and lower the water temperature.

After step (e) is performed, if the water temperature of the seawater measured by the sensor unit in step (f) is below the set temperature and the dissolved oxygen level of the seawater measured by the sensor unit is above the set dissolved oxygen amount, the control unit operates the hydraulic pump 710. Steps to stop operation may be taken.

In step (f), (f1) the sensor unit measures the water temperature and dissolved oxygen in the seawater, (f2) the seawater temperature measured in the sensor unit is below the set temperature, and the dissolved oxygen amount in the seawater measured in the sensor unit is below the set dissolved oxygen level. When the oxygen amount is abnormal, the control unit may include a step of stopping operation of the hydraulic pump 710.

In step (f1), the dissolved oxygen amount of seawater can be measured by the dissolved oxygen sensor and the measured value can be received by the control unit, and the water temperature of the seawater can be measured by the water temperature measurement sensor formed in the sensor unit and the measured value can be received by the control unit. .

In step (f2), when the water temperature of the seawater is below the set temperature and the dissolved oxygen level of the seawater measured by the sensor unit is above the set dissolved oxygen level, the control unit may stop operation of the hydraulic pump 710.

Even when the operation of the hydraulic pump 710 is stopped, the water current generating unit can be rotated by natural tidal currents to agitate the seawater. Because of this, it is possible to increase the water quality in the cage fish farms by agitating the seawater located in a plurality of cage fish farms without consuming energy.

The description of the present invention described above is for illustrative purposes, and those skilled in the art will understand that the present invention can be easily modified into other specific forms without changing the technical idea or essential features of the present invention. will be. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. For example, each component described as single may be implemented in a distributed manner, and similarly, components described as distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the patent claims described below, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

11: 1st double cage fish farm
12: 2nd double cage fish farm
13: 3rd double cage fish farm
14: 4th double cage fish farm
100: Upper frame
110: footrest
111: Buoy
200: net
300: lower frame
301: Dissolved oxygen sensor
302: Water temperature sensor
310: connector
410: Air compressor
420: bubble tube
421: bubble valve
430: Micro filter
440: bubble tube
441: fine hole
510: Guide frame
520: Lower cage net
530: Guide hole
610: Suction pump
620: Purification Department
630: recovery pipe
631: Control valve
632: connector
640: Height detection sensor
710: pump
720: Ball joint
730: shaft
731: 1st axis
732: 2nd axis
740: housing
741: First nozzle part
742: Connection home
743: Second nozzle part
750: Propeller part
751 : wings
752: Rotating bearing

Claims (10)

upper frame;
a lower frame formed to correspond to the upper frame;
an upper edging net that is coupled to one side of the upper frame and the other side of the lower frame and is formed in a net shape;
A guide portion coupled to the lower frame and formed in a hopper shape; and
A double cage fish farm contaminant recovery device comprising a removal unit coupled to the guide unit and removing contaminants deposited on the guide unit.
In claim 1,
The guide part,
A guide frame formed in a hopper shape with the lower end tapered inward;
A lower cage mesh coupled to one side of the lower frame and the guide frame; and
A double cage fish farm contaminant recovery device comprising a guide hole formed in the shape of a hole at one end of the guide frame and coupled to the removal unit.
In claim 1,
The removal part,
a recovery pipe coupled to the guide portion and through which contaminants deposited in the guide portion are moved;
a recovery valve coupled to the recovery pipe and controlling opening and closing of the recovery pipe; and
A double cage fish farm contaminant recovery device comprising a suction pump that is coupled to the recovery pipe and sucks the contaminants using negative pressure.
In claim 2,
The lower cage net is,
A double cage fish farm contaminant recovery device further comprising a height sensor that is coupled to the lower cage net and detects the location of accumulated contaminants.
In claim 4,
The height detection sensor is,
A double cage fish farm contaminant recovery device further comprising a control unit that receives the measured value from the height sensor and controls the removal unit.
In claim 3,
The suction pump is,
A double cage fish farm contaminant recovery device that is coupled to the suction pump and further comprises a purifier that purifies and discharges contaminants sucked in by the suction pump.
In claim 1,
The lower frame is a double cage fish farm contaminant recovery device, characterized in that it has negative buoyancy.
The double cage fish farm pollutant recovery method using the double cage fish farm pollutant recovery device according to any one of claims 1 to 7,
(a) Contaminants are deposited on the lower part of the guide part formed in a hopper shape;
(b) measuring the height of contaminants deposited on the guide unit by the height sensor;
(c) when the measured height of the contaminant exceeds the set height, the control unit controls the removal unit to remove the contaminant; and
(d) a step of the control unit stopping the operation of the removal unit when the height of the contaminant measured by the height sensor is below the set height; a double cage fish farm contaminant recovery method comprising a.
In claim 8,
In step (a),
(a1) moving contaminants to the lower side of the guide unit along the tapered slope of the guide unit; and
(a2) A method of recovering contaminants from a double cage fish farm, comprising the step of depositing contaminants on the lower part of the guide part.
In claim 8,
In step (d),
(d1) the height sensor measuring the height of the contaminant; and
(d2) a step of the control unit stopping the operation of the removal unit when the measured height of the contaminant is below the set height; a double cage fish farm contaminant recovery method comprising a.

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