KR101402648B1 - Donut-shaped aquaculture tank for incubation of eel - Google Patents

Abstract

The present invention provides an incubation system for fish larva which automatically mixes a liquid feed in an aquaculture tank at a proper flow rate to increase the survival rate of early-stage larval eels and to manage the early-stage larval eels in large amounts. The circulation rate and location of water is adjusted to exact figures which do not impose stress on the early-stage larval eels for an increased survival rate and mass production of the early-stage larval eels.

Description

{Donut-shaped aquaculture tank for incubation of eel}

More particularly, the present invention relates to a water tank of a donut-shaped structure having an outer wall of a predetermined height and a through hole formed at the center thereof and having a left and right semi- It is possible to spray the breeding water through the spray pipe connected to the formed drainage pipe, thereby increasing the chance that the liquid feed can be encountered with the ears. Eel Eel Eel Eel for mass rearing of the eel Type water tank.

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 amount 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 cultivation in 2010, but the mass production of artificial seeds for industrialization has not succeeded. Is a few fish that have not yet been completely lifed up.

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. In the past 90 years, a deep sea submersible and special plankton net were produced and started tracking the spawning ground. As a result, a team of Professor Tsukamoto of the Ocean Research Institute of the University of Tokyo, Japan in 2011, And 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. Demand for annual eel farming for consumption in four East Asian countries is around 270 tons. One eel with a weight of only 0.2 grams has recently surged to KRW 4,000, which is close to KRW 10 trillion, but the production of eels in the Far East has not yet reached 100 tons.

In Korea, it was caught more than 10t just four to five years ago, but last year only 2.5t has been caught and it depends on the import of eel fish. Therefore, assuming that the required amount of seed eels for four East Asian countries (Korea, China, Japan, Taiwan) is about 250 tons (about 1.3 billion), it is about 9 trillion won in astronomical market size, Competition is widespread, so it is most feasible to receive seeds through 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.

The breeding tanks that can breed the common eel's ears are largely composed of a tank main body, a drain pipe, and a water pipe. In the dark state of the eel's ears, the mainstream movement is performed in the same direction as the water flow. When the light source is turned on, the light travels in the reverse direction and the artificial intake of the liquid feed is performed by using the negative luminous characteristic of light, and the feed residue and secretion in the body of the fish tank are removed, .

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.

Therefore, it is necessary to circulate an appropriate level of breeding water because the small eel of small size and low swimming ability can be killed by mixing with the liquid feed when there is no circulation of breeding water or when it is weak. When strong, the liquid feed spreads throughout the water tank, and not only the amount of the liquid feed escapes to the outlet, but also the chance of encounters with the liquid fish feed is low, resulting in lower feed efficiency and stress of the fish itself.

Therefore, in order to maintain adequate water circulation in the breeding season, human beings are controlled by observing directly by using a tube that discharges water, but this method can not cope with mass production in terms of labor costs and management methods. In addition, it is difficult to distinguish in the dark breeding facility where the body of the fish body is transparent and the size is small, and the environment of the fish body is reproduced. In spite of the fact that the fish body is easy to occur even in small mistakes, The damage becomes enormous.

Therefore, in order to mass-produce the artificial spawning fresh eel, it is necessary to have a diameter capable of accommodating a large quantity of the eel and to make an environment in which the eel is floated on the bottom of the water tank so that the eel can properly meet with the liquid feed It is necessary to have a breeding tanks for the mass production of the initial eardrum equipped with an automated breeding system.

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, in the prior art, the feeding water is fed to the bottom of the tank through the feeding water supply pipe spaced apart from the bottom of the tank of the donut type, which is a technical feature of the present invention, The technical constitution for allowing the feed water pipe to rotate within the water tank so that the liquid feed can be appropriately circulated is not disclosed and shows a difference.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method and apparatus for circulating a liquid feed at a flow rate suitable for encounters with a frog in a water tank having a diameter large enough to accommodate a large amount of fish, The object of the present invention is to provide a donut-shaped water tank in which a supply spray device is installed, thereby stably producing a large amount of fish.

In order to solve the above-mentioned problem, the present invention provides a water tank body comprising a water tank bottom having a toroidal structure having outer walls of a predetermined height, a through hole formed at the center thereof, and a cross- A drain pipe connected to the hole at the center of the water tank body, and a sub motor for rotating the feed water supply pipe and the feed water supply pipe at the upper end of the drain pipe are installed. The feed water supply pipe is connected to the support pipe And the end of the support tube is formed with a spray tube with the same curvature as that of the semicircular section forming the bottom of the water tank.

A transparent water tank window and a water tank guide are formed at the upper part of the outer wall of the water tank body. At least one discharge hole is formed in the spray pipe at regular intervals in the direction of the bottom of the water tank. And the support pipe is connected to the support pipe through each support weight, and the end of the support pipe is formed with a spraying tube having the same curvature as that of the semicircular cross section forming the bottom of the water tank. Provide a water tank.

Since the structure of the water tank is made of a donut-shaped circle, it is possible to evenly mix the liquid feed without making a blind spot formed in the existing water tank when the water for breeding water or the air is sprayed from the water feeding apparatus. In addition, based on the experimental data, it is possible to automatically rotate the liquid feed in the water tank by controlling the rotation speed of the sub motor and the water feeding device for feeding the liquid feed, thereby reducing the labor cost and preventing the mortality It is possible to mass-produce the eel fish in the end, and it is easy to disassemble and assemble each component of the tank body, the drainage device and the breeding water injection device constituting the water tank.

1 shows an overall perspective view of a donut-shaped water tank for mass production of eel early ear lobes.
Fig. 2 is a perspective view showing a water tank body of a donut-shaped water tank for mass production of eel early in the eel by separating the water tank body into its constituent parts.
Fig. 3 shows a configuration of a breeding water jetting apparatus of a donut-shaped water tank for mass production of ear ears early in eel.
Fig. 4 shows the operation state of the drainage device of the donut-type water tank for mass production of the eel early ear lobe.
Fig. 5 shows a cross-sectional view in which the breeding water drainage device is rotated in a donut-shaped water tank for mass production of eel early ear.

The present invention relates to a water tank for breeding a large amount of early eel of an eel. The fluid analysis is used to measure the rate of movement of the initial water in the tank, which can appropriately feed the liquid feed in the tank, And controls the raising water jetting device in the sub motor connected to the liquid feed mixing system.

In addition, the breeding water injection device mixes the liquid feed appropriately while rotating in the water tank through the support weight connected to the drain pipe located at the center of the water tank, and the eel Provides a donut-shaped water tank for mass production of the initial shoal.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to specific configurations and attached drawings of a donut-shaped water tank for mass production of eel early ear hatching.

1 shows an overall perspective view of a donut-shaped water tank for mass production of eel early ear lobes. A donut-shaped water tank for mass production of an eel of an eel is composed of a water tank body 10 having a circular water tank bottom opening with an opening at the top, a water tank window, and a water tank guide wall; A drainage device (30) mounted on the water tank body and capable of feeding and draining water; A sub motor (40) for controlling the operation of the raising water jetting device in accordance with the input data; And a raising water jetting device 50 which is controlled by a sub motor and is capable of appropriately circulating the liquid feed to the entire water tank.

Unlike the existing water tank, the water tank bottom section of the water tank body of the present invention has a drain hole formed at the center and a semicircular shape at both sides of the drain hole. That is, the bottom surface has a semicircular curved surface and has a donut shape connected at 360 degrees. The semi-circular curved surface of the water jetting device is adjacent to the water jetting device so that the water is sprayed while being half-rotated.

Fig. 2 is a perspective view showing a water tank body of a donut-shaped water tank for mass production of ear eel early ear lobes separated into respective constituent parts. The water tank body 10 is composed of a water tank bottom 11 having a predetermined diameter, a water tank window 12 constituting an outer wall of the water tank, and a water tank guide 13. The upper part of the water tank body can be opened or worn through the opened upper part of the tongue, and the necessary liquid feed and oxygen can be supplied to the water tank.

The water tank bottom 11 has a circular shape with a diameter of about 1 meter to accommodate fishes of many individuals and a protrusion is formed in the center of the water tank so as to have a cylindrical shape corresponding to the drain pipe 31 Thus, the drainage device 30 can be mounted on the bottom of the water tank 11 to discharge the breeding water drained from the drainage device to the outside of the water tank or to introduce clean breeding water. 1, the bottom of the tank is deeply drilled in the shape of a donut around the protrusion, so that the spray pipe 53 can rotate around the drain pipe 31 as a centrifugal force.

The water tray window 12 can be made of glass or acrylic material such that the inside of the water tray can be seen and a window corresponding part for fixing the water tray window 12 is provided at the edge of the water tray bottom 11, . In addition, the window corresponding to the edge of the water tank trough can be coupled with the water tank window 12 by forming a groove to which the water tank window 12 can be fitted.

The water tub guide 13 can be mounted by inserting a window corresponding part on the inner surface of the water tub guide and inserting the upper side of the water tub window inside the water tub guide like the method of mounting the water tub window 12 on the water tub bottom 11. [ The water tank guide 13 serves to prevent the water tank window 12 having a relatively thin thickness from being damaged by water pressure and to fix or maintain the shape of the water tank window.

Fig. 3 shows a configuration of a breeding water jetting apparatus of a donut-shaped water tank for mass production of ear ears early in eel. As described above, since the water tank 10 can be completed by assembling the water tank bottom 11, the water tank window 12, and the water tank guide 13, the diameter or the width of each part can be deformed, It is possible to replace the size of the tank in accordance with the number of the animals.

Fig. 4 shows the operation state of the drainage device of the donut-type water tank for mass production of the eel early ear lobe. The drainage device 30 includes a drainage pipe 31, a drainage port 32 and a breeding water supply pipe 33. The breeding water injection device 50 includes a support weight 51, a support pipe 52, 53).

 The drainage pipe 31 is mounted on the water tank main body 10 with a diameter corresponding to the protrusion provided at the center of the water tank bottom 11 and the drainage pipe 31 is provided with drainage water A drain port 32 is provided. The drain port (32) can be provided with a filter net made of mesh smaller than the trunk cross-sectional size of the eel of the eel, so that the creatures that are raised before draining the water can be prevented from entering the drain.

A supporting weight 51 is mounted on the upper opening of the drain pipe and a sub motor is mounted on the side of the supporting weight so that the supporting weight 51 controls the drain pipe 31 to rotate in the water tub. The supporting weight 51 is formed in a fan-shaped structure having a larger diameter on one side, and the inside of the supporting weight 51 is formed to have a through-hole so that the number of raising can be moved into the supporting weight. When the support weight 51 is formed into a fan shape, the support weight 51 is extended away from the center, and the support tube can be stably supported when the support weight 51 is rotated.

A support pipe (52) is installed in the bottom of the support weight in the direction of the bottom of the water tank, and the support pipe (52) is connected to the injection pipe (53). The jetting pipes 53 are installed in the shape of a curvature of a semicircle exactly in the direction of the waterbath wall and are provided with a plurality of discharge holes 54 arranged in a line in the direction of the tank bottom.

The discharge hole 54 introduces clean breeding water or air supplied from the breeding water supply pipe 33 into the water tank at a diameter of about 0.5 mm to about 1 mm and the flow rate of the breeding water and the air discharged is adjusted according to the input of the liquid food mixing system It can be different. As the feeding water is injected into the water tank, the liquid feed which has settled on the bottom of the water tank is circulated to the upper part of the water tank by spraying of the feeding water, so that the liquid feed distributed in the water tank can be mixed appropriately. Foreign matter can be floated together and discharged.

Fig. 5 shows a cross-sectional view in which the breeding water drainage device is rotated in a donut-shaped water tank for mass production of eel early ear. The breeding water supply pipe 33 is separately connected to the upper part of the drain pipe 31 and is connected to the support pipe 52 through the support weight 51. The clean breeding water is transferred to the breeding water supply pipe (33) and the support pipe (52) and supplied to the water tank. The raising water injector 50 reciprocates while drawing the curvature of the semicircle with the drain pipe 31 as a centrifugal and the raising water drained to the drain hole 32 passes through a drain pipe 31 connected to the water tank bottom 11, And the purified clean water is introduced into the water tank through the breeding water supply pipe 33.

The clean inflow water flows from the support weight 51 connected to the breeding water supply pipe 33 to the spray pipe 53 through the support pipe 52 and is discharged into the water tank through the discharge hole 54 provided in the spray pipe, The feed is mixed. Therefore, the jetting pipe 53 can circulate the liquid feed so that the animal feed and the liquid feed can be properly encountered by discharging the breeding water and air supplied while performing the semicircular motion.

In addition, two supporting weights connected to the breeding water supply pipe are installed facing each other in the direction of 180 degrees, so that the feeding water can be supplied to the entire portion of the donut type water tank by rotating the feeding water injection device connected to the spray pipe through the respective supporting pipes So that the liquid feed can be mixed with the jet stream.

By using the water tank to measure the flow rate of the appropriate breeding water and input it into the liquid feed mixing system and control the water feeding device according to the data inputted by the sub motor, the water tank can be managed unmanned, It is possible not only to circulate the breeding water at a flow rate that can be appropriately encountered with the liquid feed, but also to improve the water pollution by discharging feed residue or foreign matter in the water tank, and to control the devices installed in the water tank by unmanned It is industrially applicable because it is possible to mass-produce eel fish with low labor cost and high added value, thereby maximizing aquaculture production while reducing costs.

10: water tank body 11: water tank bottom
12: Water Tank Window 13: Water Tank Guide
30: drainage device 31: drainage pipe
32: drainage hole 33: breeding water supply pipe
40: Sub motor 41: Sub motor connection part
50: Breeding water jetting device 51: Support weight
52: support tube 53: spray tube
54: Discharge ball

Claims (4)

A water tank main body having an outer wall of a predetermined height and a through hole formed at the center thereof and having a toroidal structure having a left and right semicircular cross sectional shape centering on the through hole;
A drain pipe connected to the through hole at the center of the water tank body, and a sub motor for rotating the feeding water supply pipe and the feeding water supply pipe at the upper end of the drain pipe;
The breeding water supply pipe is connected to the support pipe through the supporting weight connected to the drain pipe and is installed to be spaced apart from the drain pipe,
Wherein the end of the support tube is formed of a spray tube having a curvature so as to maintain a constant distance from a semicircle section forming the bottom of the water tank.
The donut-shaped water tank of claim 1, wherein a water tank window made of a transparent material and a water tank guide are coupled to the outer wall of the water tank body.
[3] The donut-shaped water tank of claim 2, wherein one or more discharge holes are formed in the spray tube at regular intervals toward the bottom of the water tank.
[5] The apparatus according to claim 3, wherein two supporting weights are formed facing each other in a lateral direction about a drain pipe, and a breeding water supply pipe is connected to the supporting pipe through respective supporting weights, Wherein the first and second eardrums are formed at the same curvature.

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