KR101402645B1 - Aquaculture tank cleaning system - Google Patents

Abstract

The present invention relates to a cleaning system of an aquaculture tank for early-stage larval eels which includes: a mixing system for a liquid feedstuff which measures and controls the discharge velocity and the flow rate of the aquaculture water; an aquaculture tank main body which comprises an open top, a floor part having a certain area, and an outer wall in the shape of a polygon; a guide rail formed on the upper parts of a right side and a left side of the outer wall of the aquaculture tank main body; a sub-motor which moves along the guide rail; a water supplying pipe which moves inside the aquaculture tank according to the movement of the sub-motor joined thereto; a discharging pipe arranged on a center side of the inside of the aquaculture tank main body. The liquid feedstuff inside the aquaculture tank is automatically mixed at a proper flow rate to increase the survival rate of the early-stage larval eels. An inner space of the aquaculture tank is cleaned by the currents of the aquaculture water supplied by the water supplying pipe formed to be able to reciprocate along the guide rail formed on the upper part of the outer wall of the aquaculture tank main body.

Description

{Aquaculture tank cleaning system}

More particularly, the present invention relates to a water supply system for an eel, which is capable of reciprocating along a guide rail formed on the outer wall of an outer wall of an aquarium body for efficiently raising and managing an eel of an eel The present invention relates to a cleaning system for an eel rearing tank of an eel which is capable of cleaning the inside of a water tank by using a water stream of breeding water supplied through the eel.

Far Eastern Eel ( Anguilla japonica ) depends on the eel resource of the wild eel, so the price of the eel is determined according to the quantity of eels eaten every year. In order to solve these problems, some nations in Northeast Asia have started to study artificial seed production since the 1960s.

In Japan, the success of artificial insemination by artificial insemination in 1973, the successful production of artificial seedling in 2001, and the complete breeding in 2010, but the mass production of artificial seedlings for industrialization has not succeeded. Contrary to familiarity with the general public, life is still a few fish that have not been completely survived.

In order to elucidate the eel life history surrounded by mystery like this, a trace study on the spawning field which gave birth to the egg recently began. From the 90s, deep sea submersibles and special plankton nets were produced and tracked by the team of professor Tsukamoto of the Institute of Marine Sciences, University of Tokyo, Japan in 2011, to see the spermatozoa By discovering the embryos, the spawning grounds of Far Eastern eels were revealed.

Analysis of the results of Japanese studies on eel artificial seedlings and complete cultivation shows that 1) it is difficult to obtain high quality fertilized eggs due to high concentration of extracorporeal hormone, 2) This is the most effective food currently available for the production of artificial seeds based on shark eggs. This is because the food is unique and easily caused by the contamination of the feedstock caused by feed residue, thereby lowering the survival rate of the fish. 3 ) It is difficult to mass-produce by current breeding system method.

In particular, demand for eel consumption has increased in recent years in China and Taiwan, as well as in Japan and Korea (about 15,000 tons), the world's largest eel consumption countries consuming around 250,000 tons a year, Is growing. The demand for annual eel farming for consumption in four East Asian countries is around 270 tons, which is close to 10 trillion won considering that a single eel that weighs only 0.2 grams has recently surged to 4,000 won. Eel production has not reached 100 tons recently. In Korea, it has been caught more than 10 tons just four to five years ago, but last year, only 2.5 tons have been caught and rely on imported eel fish.

Therefore, assuming that the amount of seed eels required for four East Asian countries (Korea, China, Japan, and Taiwan) is about 250 tons (about 1.3 billion), it will reach about 9 trillion won in astronomical market size. Is the most suitable way to receive seeds from the production of artificial seeds of Far Eastern eels.

Following Japan, Korea has succeeded in producing artificial eels, the second in the world by Korean researchers. However, there is no nation that succeeded in mass production in the world and the survival rate of young eels is extremely low. It is urgent to develop a tank for breeding.

In the dark state of the eel's ears, the main stream moves in the same direction as the water flow. When the eel is lit, the water is turned in the opposite direction And the light-induced diurnal light characteristics, the artificial intake of liquid feeds and the elimination of feed residue and secretions in the body of the fish tank minimize the stress and physical impact on the early eel of the eel in the water tank body.

In general, fish feeds can be divided into powder, water, and liquid feeds. Powdered feeds are made from turbid water in the water tank, and the ring-shaped feeds are relatively large for consumption by the ears. Liquid feeds are usually made using a mixture of fish eggs and other nutrients, and they are present in the form of water in oil or oil in water in the water tank due to their unmixed nature. So sink to the bottom of the tank.

In particular, a small eel-eared young eel that is small in size and low in swimming capacity may have an appropriate level of water circulation because it can be killed by mixing with a liquid feed if there is no water circulation or weakly. If the circulation is strong, Not only is it spreading throughout the water tank, but also the chance of encountering the liquid food is low because of the high amount of escaping to the discharge outlet, the feed efficiency is lowered and the stress of the self is increased.

Therefore, in order to maintain proper water circulation, water circulation is controlled by observing directly by using a tube that discharges water, but this method can not cope with mass production in terms of labor cost and management method. In addition, it is difficult to distinguish in the dark breeding facility where the body of the body is transparent and the size is small and it reproduces the habitat environment of the body of the fish. It is enormous.

Therefore, it is necessary to develop an automated breeding tank for the artificial mass production of eel early ear lobes and establish a breeding system that can create an environment where the livestock can properly meet the liquid feed.

Korean Patent Laid-Open Publication No. 10-2012-0112986 discloses a water tank which is connected to the body of a water tank body in which water and eels are stored, and is connected to the water tank body to supply water into the water tank body, And a filter member provided on the discharge path of the water to filter the eardrums when the water is discharged, the method comprising the steps of: . Japanese Patent Application Laid-Open No. 10-2011-0096111 discloses an air conditioner comprising an injector or an air stone for injecting water or air into a water tank, wherein the bottom of the water tank has a downwardly curved curved portion, and at the lowermost end of the curved portion, And the sludge accumulating on the floor is disposed along the longitudinal direction to effectively float the sludge using an injector. In Korean Utility Model Registration No. 20-2005-0003378, feeding feed is supplied through a hopper and the supplied feed is projected to the farm by the rotation of the rotating disk, so that the feeding amount and the throwing distance can be appropriately adjusted, A method for an automatic feeding system for a terrestrial fish farm, characterized in that waste of manpower is minimized. In Korean Utility Model Registration Utility Model No. 20-2003-0029362, the present invention relates to a device for removing feed residue and soil from a fish farm, and more particularly, it is provided with a mixing tube and a micro-bubble generating tube to generate bubbles, And removing the feed residue and dirt from the fish farm which supplies the filtered water to the fish farm water tank again. However, the above-mentioned prior arts do not disclose a technical structure in which a sub motor is mounted on both sides of the upper part of the water tank, which is a technical feature of the present invention, and the feeding water is supplied while moving back and forth automatically during water supply.

It is an object of the present invention to provide a self-raising system automation device capable of automatically mixing a liquid feed in a breeding tank with an appropriate flow rate to improve the survival rate of early eel hatchlings, thereby enabling easy and stable mass production of eel hatchlings It has a purpose in breeding.

In order to solve the above problems, the present invention provides a liquid feed mixing system for controlling the speed of a sub motor by inputting data obtained by measuring a discharge speed and a flow speed of a feed water; A water tank body having a bottom portion having an open top and a predetermined area and a polygonal outer wall; A guide rail formed on upper left and right outer walls of the water tub main body; A sub motor movable along the guide rail; A water supply pipe moving according to a sub motor connected in the water tank; And a drain pipe disposed on the center side of the water tank main body is provided.

According to the present invention, when a virtual simulation is performed using a particle image velocimetry (PIV) and a computational fluid dynamics (CFD) technique, It is easy to ingest the liquid feed and the initial eel hatching of the eels can increase the survival rate of the eels by adjusting the accurate speed and position of the water without stress.

Unlike the conventional method in which a person directly observes and controls the environment in a water tank by using a tube for discharging the water to maintain the water circulation of a proper strength, data on the proper discharge amount and flow speed of the water , It is possible to circulate the liquid feed which is automatically settled on the floor by driving the liquid feed mixing system to prevent the mixing of the hatching habit and the liquid feed and to enable the mass production of the eared hare initial ears.

In addition, it is possible to circulate the liquid feed in the water tank by controlling the water line which is connected to the sub motor so that the reciprocating movement is possible in the water tank, and since the discharge hole is arranged at an appropriate angle, And has a purifying effect of discharging not only the liquid feed settled on the floor but also the feed residue through the discharge port in a plurality of discharge holes formed at a predetermined angle to the water supply line.

Fig. 1 shows flow velocity measurement using the particle image velocity meter of the present invention.
Figure 2 shows a conceptual diagram of a liquid feed mixing system
Figure 3 shows the interface of a liquid feed mixing system.
Figure 4 shows an overall perspective view of an initial eel rearing tank of an eel.
Figure 5 shows a side view of an initial eel rearing tank of an eel
Fig. 6 shows the water flow structure of the water pipe and the water pipe of the eel rearing tank of the eel.

The present invention relates to a breeding aquarium for mass culture of early eel larvae, and it relates to data values obtained through appropriate water discharge rate and speed control simulation through particle image imaged flow (PIV) and fluid analysis using computational fluid dynamics (CFD) To control automated liquefied feed mixing systems. The sub motor is connected to the U-shaped water supply pipe located in the water tank to control the water supply pipe to reciprocate in the water tank. And provides an initial eel rearing tank cleaning system for circulating the stored feed water and the liquid feed.

Hereinafter, the detailed construction of the eel rearing tank of the eel of the present invention will be described in detail with reference to the accompanying drawings and the accompanying drawings.

Fig. 1 shows the flow velocity measurement of a fluid flow in a water tank of the prior art, which was registered and registered by the applicant of the present invention, using a particle image velocity meter. The volume and velocity of the water suitable for the ears can be derived from the fluid analysis of the water tank. The technique can be largely derived from the particle anemometer (PIV) and computational fluid dynamics analysis (CFD).

Particle Image Velocimetry (PIV) is a method of fluid measurement that measures multi-point flow by measuring the instantaneous flow velocity and flow direction of a particle by irradiating a light source such as a laser, CFD is based on the fundamental theories governing general heat fluid flow phenomena, the hydrodynamic basic governing equations and the various numerical ancillary equations, which are governed by the laws of conservation of mass, conservation of momentum and energy conservation, And combustion, multiphase flow, and phase change phenomenon.

Therefore, by measuring the specific particle by PIV through simulation, it is possible to derive the discharge volume and velocity of the breeding water suitable for the ears by numerically implementing the CFD and performing hydrodynamic performance analysis.

FIG. 1D shows an example of a fluid analysis result of the conventional prior art registration invention. In the conventional water tank, the fluid moves in accordance with the bending of the water tank wall and has a constant velocity flow, And the liquid feed moving together moves down to the bottom of the eel eel which swims at the bottom. Therefore, the manager has to draw a separate water supply pipe from the outside and move at a constant speed to change the flow of the fluid.

FIG. 2 is a conceptual diagram of a liquid-feed mixing system installed in an eel cleaning tank system for early eel life. Based on the CFD and PIV simulation results, the liquid feed mixing system plays an unmanned control role by optimizing the mixing device installed in the water tank. The liquid feed mixing system consists of a position control module device, a control CPLD PC device, a real time control module device, a digital feed back module device, and an analog motor control device.

The position control module device controls the sub motor directly connected to the mixing device installed in the water tank. The control CPLD PC device, Digital Feed Back module device, and analog motor control device operate smoothly. And the like. The real-time control module device sets the moving speed and the position acceleration interval of the water pipe through the water tank flow analysis and controls the feeding time.

Figure 3 shows the interface of a liquid feed mixing system. The Window User Interface (UI) consists of two 1-axis motor control modules, two real-time motor control modules, and LabView 2013 (http://www.ni.com), an integrated control unit. The UI is designed to be an unmanned system using the self-driving module after completion of the optimization program for liquid feed mixing. Both software control and electronic control are possible and control using sensors is also possible.

Fig. 4 shows an overall perspective view of the initial eel rearing tank cleaning system of the eel. A water tub main body 10 having an upper portion and a round bottom portion having a predetermined area and a water tub outer wall; A guide rail (21) formed on upper left outer walls of the water tub main body; A sub motor (20) for providing a driving force so that a water supply pipe provided on a guide rail can be moved; A water supply pipe (30) connected to the sub motor and disposed above the guide rail for spraying the water in the reciprocating motion in the water tank movable along the guide rail; And a drain pipe (40) formed through the center of the water tank body and discharging water to the outside.

The water tank body 10 has an upper end open to the inside of the water tank and the eel hatches accommodated therein and allows the user to insert or remove the fishhook into the water tank body 10 through the opened openings, . The water tank body 10 is provided with a circular bottom portion having a predetermined area and a planar water tank outer wall. In the embodiment of the present invention, the front surface and the back surface of the outer wall of the water tank are formed in the shape of a circular plate having an upper end cut out, and the side surface has a cylindrical tube shape with an upper end cut out.

A sub motor 20 is provided on one side of the upper surface of the guide rail 21 on which the guide rails 21 are provided in parallel on the left and right outer walls of the water tub main body to provide a driving force for moving the water supply pipe placed on the guide rails. Further, the sub motor is installed on the upper part of the guide rail, and is connected to the rotary gear so as to transmit the driving force to move along the guide rail 21 and to reciprocate when it reaches the end of the guide rail .

That is, the reciprocating motion can be carried out by applying various methods such as a sub motor 20 moving on the upper part of the guide rail 21 and a linear motor operating method in which screws are installed on the sub motor, Do.

An embodiment of the present invention will be described with reference to a sub-motor 20 constituted by a drive wheel for sliding on a guide rail and a gear and a motor for transmitting a forward rotation in a forward rotation to the drive wheel. Although an AC motor can be used as the motor, it is preferable to use a DC motor to accelerate the forward rotation in a forward direction. The power supply to the motor can be directly transmitted through the hoist, and the motor can be driven by supplying different polarities to the other rail parallel to the rails of the outer wall. The forward end of the rail is equipped with a forward / reverse switch, so that when the drive wheel touches the end of the rail, the polarity is reversed and the watertank can be designed to reciprocate.

5 shows a side view of an initial eel rearing tank of an eel. The water pipe frame can be designed in various ways according to the shape of the water tank to facilitate the reciprocating movement in the water tank. In the embodiment of the present invention, the supply pipe of the U-shaped frame is installed, and both end portions of the water supply pipe (30) composed of cylinders having a constant diameter are connected to the upper surface of the sub motor (20).

In both ends of the pipe, a breeding airstream pipe is connected and the breeding water is continuously supplied. In some cases, breeding water can be bombarded on one end. When the speed of the sub motor 20 is controlled according to the data value inputted to the liquid feed mixing system, the water supply pipe 30 connected to the sub motor is reciprocated within the water tank at an appropriate speed. As shown in FIG. 5, when the left side of the drawing shows the front surface of the water tank and the right side shows the rear surface, the water supply pipe 30 moved by the sub motor 20 reciprocates from the front surface to the rear surface.

6 shows the water flow and the structure of the water pipe 40 and the water pipe 30 of the eel rearing tank. A discharge hole is provided to supply clean water to the water tank along the lower frame by a water supply pipe. The diameter of the breeding water discharge hole is set at a certain angle with a diameter of about 0.5 mm to 1 mm. The breeding water discharging holes 31 provided so that the discharging holes are installed at a predetermined angle are arranged to circulate the liquid feed in the blind spot when the water supply pipe reaches the front or rear wall of the water tank, 30 to 60 ° is appropriate, but the angle can be appropriately designed according to the size and shape of the water tank.

The breeding water discharging hole (31) is controlled in accordance with the inputs of the liquid feed mixing system. When the water supply pipe (30) reciprocates in the water tank, the clean water is discharged from the water discharge hole (31) to circulate the liquid food that has settled on the bottom of the water tank to the inside of the water tank, So that the drainage is floated through the drain pipe 40 and functions as a primary drain.

The drain pipe (40) disposed on the center side of the inside of the water tank body generally has a cylindrical shape with a constant diameter. The water supply pipe (30) controls the flow of the fluid to be collected at the central portion, and is raised and then discharged to a low place. Such action is referred to as a downflow phenomenon or a siphon action. The drain pipe (40) serves to remove the waste residue floating in the water tank by discharging it to the outside or to drain the water to the outside when cleaning the inside of the water tank.

A plurality of drain holes 41 having a predetermined diameter are provided on the surface of the drain pipe 40. The filter member is detachably fitted on the surface of the drain hole 41 to filter the tongue and pass only water and debris. The filter element can be selected according to the size of the growth of the fishermen by covering the fishermen 's muller gauze which is used for filtration of fish and shellfish, and is replaceable on the outside of the water pipe.

The submotor is controlled according to the input value of the liquid feed mixing system to circulate the feed water in the aquaculture tank at a proper flow rate to prevent the abalone from mixing with the liquid feed, It is possible to simultaneously improve the water pollution caused by sediment of excrement and feed and to control unmanned, thereby enabling to mass-produce eel fish ears having labor cost reduction and high added value, There is a possibility.

10: Water tank
20: Sub motor 21: Guide rail
30: Water supply pipe 31: Discharge hole
40: drain pipe 41: drain

Claims (5)

A water tub main body 10 having an upper portion and a round bottom portion having a predetermined area and a water tub outer wall; A guide rail 21 formed on left and right upper outer walls of the water tub main body; A water supply pipe (30) formed to be movable along the guide rail; A sub motor (20) is provided to provide a driving force to move the water supply pipe; And a drain pipe (40) formed through the center of the water tank body and discharging the water to the outside.
2. The eel of claim 1, wherein a reverse rotation switch is provided at one side of the guide rail, the reverse rotation switch being formed such that the water supply pipe receives the driving force of the sub motor and moves along the guide rail to reach the end of the rail, Breeding tank cleaning system.
[3] The system of claim 2, wherein the water supply pipe and the drain pipe are formed with a discharge hole and a drain to discharge and drain water from the breeding ground.
[2] The system of claim 1, wherein the discharge hole formed in the water supply pipe has an angle of 30 to 60 degrees with respect to a direction of a wall surface of the water pipe.
[5] The system of claim 4, wherein a filter filter filter having a diameter of 0.5 to 1.0 mm is installed in the discharge hole of the water supply pipe.

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