KR20220006208A - Farming equipment for artificial seeds of shellfish - Google Patents

Abstract

The present invention relates to an artificial shellfish seed farming apparatus to easily cultivate the larvae of the floating stage and the benthic larvae of the intermediate breeding stage, which are periods of floating life in water, among artificial shellfish seeds. According to the present invention, the artificial shellfish seed farming apparatus comprises: a water tank unit formed to have a space part for accommodating seawater, wherein a through-formed drainage pipe is provided in a sidewall; a seawater supply unit installed directly or indirectly in the water tank unit to supply the seawater to the water tank unit; and a plurality of larva accommodation units formed to have a space part for accommodating a predetermined number of larvae and arranged inside the water tank unit, wherein a net having a hole with an area smaller than that of the larvae is formed the bottom surface of the larva accommodation unit.

Description

FARMING EQUIPMENT FOR ARTIFICIAL SEEDS OF SHELLFISH

The present invention relates to a shellfish artificial seedling culture apparatus, and more particularly, to an artificial shellfish seedling culture apparatus for easily culturing the floating larvae and the benthic larvae of the intermediate breeding period, which are the periods of floating life in water among artificial seedlings of shellfish. is about

In general, shellfish is a generic term for the types of mollusks with calcareous shells, which include Danpangang (單板綱), Dapangang (多板綱) and Gastrofoot (腹足綱) subclasses, and the subclasses of the oculum (有肺).亞綱) and parts of the Husaea River, the Gulljok River, the Bimae Pae River, and a very small part of the Cephalopod River.

Among them, the bivalve clams, called bivalves, have an axe-shaped feet, so they are also called tribal rivers. Their bodies are encased in a symmetrical shell connected by ligaments, and they do not have radula, but instead have an inlet hole and hole. It is obtained by filtering food in the water with gills using the water outlet.

Among the above bivalve molluscs, clam, cockle, clams, and cockroaches, etc. are representative edible bivalve molluscs abundantly present in the coast of Korea. When they grow to be burrowers, they live in sediments such as mud and show burrowers.

The benthic bivalve molluscs, unlike aquaculture target species that can control the environment by providing food and nutrients in cages or indoor tanks, collect wild larvae in a tidal flat culture that is highly dependent on the natural environment, grow them for a certain period of time, and then harvest them. For this reason, continuous reproduction in their natural habitat is necessary to maintain the aquaculture industry of that variety.

Recently, various methods of culturing shellfish such as oysters, abalone, clams, scallops, clams, lilies and scallops have been implemented. is changing in a way.

In other words, the supply of natural seedlings was unstable due to marine environmental pollution and reckless overfishing, resulting in a shortage of resources. Various techniques have been proposed for cultivating artificial seedlings in terrestrial tanks.

First, Figure 1 is a conceptual diagram showing a shellfish artificial seedling culture facility according to the prior art.

As shown in FIG. 1, the conventional prior art generally has a rectangular water tank shape with an inner surface of a rectangular parallelepiped, and a wall surface is formed of a cement material or the like.

In such a tank, the larvae of the floating phase operate the air bubble to survive in a state of confinement of seawater. During a floating life, when the length is about 300 μm to 400 μm, they grow into chives, an intermediate breeding phase, and sink to the bottom of the tank. , the larvae grown in this way are harvested separately from the larvae of the floating stage, and then transferred to another environment and raised.

However, there is a problem in that it is difficult to work because the worker has to directly enter the tank with seawater in order to separate and harvest the green leaf, which is the intermediate growth stage, in the tank as described above. When harvesting, there is a problem that the larvae of the floating stage, which have not yet grown into larvae, may die or be lost.

In addition, if the larvae excrement is continuously accumulated and the larvae, which have entered the intermediate breeding stage, sink to the bottom, there is a problem in that the feeding activity and metamorphosis are impaired and death occurs frequently.

In particular, since the water tank is in a state of stagnant seawater, the air bubbler must be operated at all times for the survival of the larvae, thereby increasing the installation cost and additional maintenance costs such as electricity bills.

On the other hand, the bubbler used for the survival of larvae creates foam (bubble) in seawater, which shellfish avoid in common. There are problems that arise.

And, in the prior art as described above, when a large number of shellfish larvae are cultured in a tank, the larvae entering the intermediate growth stage are stacked on the bottom surface, which causes an obstacle in feeding activity, which results in the death of the larvae because metamorphosis is not performed in a timely manner. case occurs

In other words, mass culture is impossible because the number of individuals that can be cultured is limited based on the width of the bottom of the tank rather than the volume of the tank. There is an impossible problem.

In addition, in the case of the prior art, as the excrement discharged from the larvae in the intermediate breeding stage is continuously accumulated on the bottom surface, the density of the population that can be cultivated according to the area is inevitably lowered further. Since the work has to be repeated, the work is cumbersome, and there is a problem in that maintenance costs and labor are greatly consumed, such as having to prepare a place to move in advance.

KR 10-0760272 B1 KR 10-1285112 B1 KR 10-1108643 B1 KR 20-0241833 Y1

An object of the present invention to solve the problems derived from the prior background art is to enable simple separation and harvesting of larvae grown from the floating stage to the mid-season larvae, and to minimize the damage to the larvae of the floating stage that have not grown as larvae. It is to provide a shellfish artificial seedling culture apparatus having a structure that allows the separation and harvesting of chives within the scope of the present invention.

Another object of the present invention is to provide a shellfish artificial seedling culture apparatus having a structure so that excrement generated from the larvae of the floating stage can be easily discharged to the outside without special work.

In addition, it is an object of the present invention to provide a shellfish artificial seedling culture apparatus having a structure that reduces installation and maintenance costs by excluding the installation of a bubbler and minimizes death of larvae due to foam (bubble) generated from the bubbler. will be.

In addition, an object of the present invention is to enable high-density aquaculture per unit area in a state where the mortality rate of shellfish larvae is minimized, and to easily discharge excrement in the water tank, as well as to maintain the survival of shellfish larvae by installing and It is to provide a shellfish artificial seedling culture apparatus having a structure that can exclude sand on the floor.

On the other hand, the object of the present invention is not limited to the object mentioned above, and other objects not mentioned will be clearly understood from the description below.

The above object is to be installed in an indoor space on land adjacent to the sea, according to an embodiment of the present invention, and receives seawater from the sea to float the shellfish (full length of 400 µm or less) or intermediate breeders (300 µm to 5 µm) In the artificial seedling culture apparatus for cultivating larvae of centimeters in length), the apparatus comprising: a water tank part having a space for accommodating seawater, and a side wall having a drain pipe formed through it; a seawater supply unit installed directly or indirectly in the water tank to supply seawater to the water tank; and a larval accommodation unit having a space portion for accommodating a certain number of larvae, arranged in plurality inside the water tank, and having a net having a hole in an area smaller than that of the larvae on the bottom surface of the larval accommodation unit. It can be achieved by an artificial seedling culture apparatus.

Preferably, a plurality of drain pipes of the water tank are provided at regular intervals along the longitudinal direction of the side wall, and a through hole coupled in communication with the drain pipe is formed on one side of the larval receiving unit to rise inside the larval receiving unit. When a water current occurs, seawater is discharged to the outside, and a guide pipe extending a certain length from the through hole is formed inside the larval receiving unit, and the excrement of the larvae floating to the surface by the rising water flow is spaced apart from the inner surface of the larval receiving unit. It is characterized in that it is discharged to the outside in a state of being

Preferably, it is provided on the upper part of the water tank so as to cross the top of the larval accommodation unit, sucks seawater through a suction port communicating with a circulation pump provided inside the water tank, and discharges seawater into the larval accommodation unit Seawater circulation induction unit; characterized in that it further comprises.

Preferably, the seawater circulation inducing part is made in a long pipe shape to correspond to the matrix of the larval receiving unit arranged in plurality, and a plurality of discharge holes are formed through the bottom surface so that a part of the seawater sucked through the circulation pump is for the larval water It is characterized in that it is guided to be discharged into the unit.

Preferably, the seawater circulation inducing part is characterized in that, starting with the suction port, an excess drain pipe is formed at the end where the circulation of seawater stops, so that the excess seawater that is not discharged through the discharge hole is discharged.

Preferably, the amount of seawater discharged from the surplus drain pipe is controlled by a flow control valve, whereby the intensity of the seawater discharged from the discharge hole is controlled.

Preferably, the seawater circulation inducing unit, at least one auxiliary drain pipe is formed between the surplus drain pipe and the suction port, characterized in that the sucked seawater is dispersedly discharged.

Preferably, the amount of seawater discharged from the auxiliary drain pipe is controlled by an auxiliary control valve, and the auxiliary control valve controls the flow direction and water pressure of seawater in the seawater circulation induction unit in connection with the flow control valve. do.

According to the present invention according to the above-described embodiment, the following effects can be expected.

First, it is possible to simultaneously or selectively culture the larvae of the floating and intermediate breeding stages of shellfish, thereby maximizing the efficiency and productivity of the work.

Second, when separating the larvae that have grown from the floating stage to the mid-season larvae, only the larval receiving unit can be taken out and only the larvae can be separated and retrieved easily. There is an effect that can be done.

Third, it is possible to reduce installation and maintenance costs by excluding the installation of air bubbles necessary for the survival of shellfish larvae by allowing the seawater to flow continuously without stagnating so that the dissolved oxygen amount of the seawater flowing into the tank can be continuously maintained. By preventing foam (bubble) from being generated when seawater is supplied to the grandfather, there is an effect that can prevent in advance the death of larvae due to excessive generation of foam (bubble).

Fourth, by discharging seawater into the larval accommodation unit through the seawater circulation induction unit, dissolved oxygen can be smoothly supplied to the larvae in the floating stage, whereby seawater continuously flows through the bottom mesh of the larval accommodation unit to form a descending water flow Therefore, there is an effect that the excrement of the floating larvae is naturally discharged without any special work.

Fifth, the seawater flowing into the tank part continuously flows through the through-hole on the side through the bottom mesh of the larval accommodation unit to form an ascending water flow, so the excrement of the intermediate breeding period is continuously discharged to the outside without being stacked on the bottom. .

Sixth, since the excrement of the larvae is discharged naturally, the worker does not need to clean it frequently, which can reduce the labor force.

Seventh, as the excrement of larvae does not accumulate, the number of larvae can be increased as much as possible.

1 is a conceptual diagram showing a shellfish artificial seedling culture facility according to the prior art;
2 is a perspective view showing a shellfish artificial seedling culture apparatus according to an embodiment of the present invention;
3 is a plan view showing an artificial shellfish seedling culture apparatus according to an embodiment of the present invention;
4 is a side view showing an artificial shellfish seedling culture apparatus according to an embodiment of the present invention;
5 is an exemplary view showing the flow of seawater inside the water tank and the larval receiving unit to explain the operating principle according to the first embodiment of the present invention;
6 is an exemplary view specifically showing a seawater supply unit according to an embodiment of the present invention,
7 is an exemplary view showing the flow of seawater inside the water tank and the larval receiving unit to explain the principle of operation according to the second embodiment of the present invention;
8 is an exemplary view illustrating the flow of seawater inside the water tank by showing the seawater circulation inducing unit in a plan view according to an embodiment of the present invention.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and those of ordinary skill in the art to which the present invention pertains. It is provided to fully inform the person of the scope of the invention. And the terminology used in this specification is for describing the embodiments, and is not intended to limit the present invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. On the other hand, the illustration and detailed description of the configuration and the action and effect thereof, which can be easily known from those of ordinary skill in the art, will be simplified or omitted, and the parts related to the present invention will be described in detail.

The artificial seedling culture apparatus according to an embodiment of the present invention is installed in an indoor space on land adjacent to the sea, and receives seawater from the sea to float shellfish (full length of about 400 µm or less) or intermediate breeding stage (about 300 µm to 5 cm in total length) to foster larvae.

In general, the larvae of shellfish go through a floating phase in which they float in the water for a certain period of time after hatching, and when they grow into larvae, which is an intermediate breeding stage, usually 300㎛ to 400㎛ long, they no longer float and sink to lead a benthic life. do.

Therefore, according to the present invention, the larvae of the floating stage are cultured and grown into larvae, which are the intermediate breeding stages, and when the larvae are further grown to reach about 5 cm, they are supplied as an environment for raising them as larvae.

The present invention as described above, as shown in FIGS. 2 to 4 , largely includes a water tank 200 , a seawater supply unit 400 , and a larval accommodation unit 600 .

First, the water tank 200 is made to have a space for accommodating seawater, and a drain pipe 220 formed through the side wall is provided. Here, a plurality of drain pipes 220 may be provided at regular intervals along the longitudinal direction of the side wall of the water tank 200 .

The water tank 200 receives seawater from the seawater supply unit 400 to be described later and sends the seawater out again through the drain pipe 220, and the seawater discharged to the outside is returned after the excrement or sludge of shellfish is filtered. It may be circulated to the water tank 200 through the seawater supply unit 400 .

On the other hand, it is preferable that the water tank unit 200 is stacked in multiple stages to efficiently use space and perform mass culture. At this time, it is preferable that the stacked water tank units 200 be spaced apart from each other to facilitate operation and maintenance.

Next, the seawater supply unit 400 is directly or indirectly installed in the water tank unit 200 to supply seawater to the water tank unit 200 . Here, that the seawater supply unit 400 is directly installed in the water tank unit 200 means that the seawater supply unit 400 is mounted and coupled to the water tank unit 200, and the seawater supply unit 400 is the water tank unit 200. Indirectly installed to means that the seawater supply unit 400 is installed in a spaced apart state without being coupled to the water tank unit 200 .

As shown in FIG. 6, the seawater supply unit 400 is installed to be spaced apart from the larval accommodation unit 600 by a predetermined distance and supplies seawater into the water tank 200. A water supply pipe 420, and the water A filter tube provided at the lower part of the water supply pipe 420 in a state accommodated in the space of the tank 200 and discharging the seawater flowing in from the water supply pipe 420 to the water tank 200 through the filtering network 442 may be included. have.

The filter tube 440 is formed in the shape of a tube for accommodating seawater to limit the diffusion of water waves and foam generated by seawater flowing from the water supply pipe 420 . The filtering network 442 through which seawater passes in the filter tube 440 is preferably formed of a mesh network, and this mesh network serves to filter foreign substances contained in the incoming seawater.

Next, the larval accommodation unit 600 is made to have a space portion for accommodating a certain number of larvae and is arranged in plurality inside the water tank 200, and a net having a hole having a smaller area than the larvae is formed on the bottom surface. do.

The larval accommodation unit 600 of this structure is disposed so that more than half of its body is submerged in seawater, and allows seawater to circulate through a mesh formed on the bottom surface, and the circulated seawater is a drain pipe 220 formed through the water tank 200. ) is released through

Referring to FIG. 5 , a through hole coupled to the drain pipe 220 is formed on one side of the larval accommodation unit 600 to discharge seawater to the outside when a rising water flow occurs inside the larval accommodation unit 600 . That is, seawater flows in through the mesh on the bottom of the larval accommodation unit 600, and the inflow seawater is discharged to the drain pipe 220 through the through-hole, so that an upward water flow occurs.

The embodiment of Figure 5 is a configuration for cultivating larvae in the intermediate growth phase (approximately 300 μm to 5 cm in length), and when the larvae grow into larvae, which are the intermediate breeding stage, which are 300 μm to 400 μm in length, they do not float anymore and sink They lead a benthic life, and when larval excrement or sludge accumulates around the plaque, the mortality rate increases.

Therefore, according to the embodiment of the present invention according to FIG. 5 , the excrement or sludge of the larvae is washed away by the rising water flow by generating an ascending water flow through the mesh formed on the bottom surface of the larval accommodation unit 600 and the through hole formed on the side surface. Allow it to be discharged naturally through the through hole.

Furthermore, a guide pipe 620 extending a certain length from the through hole may be formed inside the larval accommodation unit 600, and the guide pipe 620 is the larvae excrement floating to the surface by the rising water flow. To be discharged to the outside in a state spaced apart from the inner surface of the larval accommodation unit (600). The guide pipe 620 of such a structure prevents excrement or sludge from being contaminated by being buried on the inner surface of the larval accommodation unit 600, and the larvae in the intermediate breeding period are the time when the larvae are switched to the larval stage, so the bottom surface of the larvae It can move along the medial side, rather than just staying on it. Therefore, the guide tube 620 of the above structure serves to prevent in advance that the larvae moving attached to the inner surface are lost to the outside through the through hole.

Here, the guide pipe 620 is installed to pass through the outside of the through hole of the larval accommodation unit 600 , and a part of the guide pipe 620 passing through the outside is in the drain pipe 220 of the water tank 200 . It is detachably coupled in an interference fit method to facilitate management of the larval accommodation unit 600 .

Therefore, when moving the larvae to another place or resembling a new larva, the larval accommodation unit is easily detached, so the operation is simplified, and when the larval accommodation unit 600 is damaged, it can be simply replaced, It is possible to improve the efficiency of work regardless of limitations.

On the other hand, a bar-shaped spacer 240 is installed on the bottom or side surface of the space part of the water tank 200 to space the larval accommodation unit 600 from the bottom surface. In the embodiment shown in FIGS. 5 and 8 of the present invention, it is shown that the spacer 240 is installed on the side of the water tank 200, and the structure of the spacer 240 is the larval receiving unit 600. As long as it can be spaced apart from the floor surface, it may be made in any shape.

The spacer member 240 as described above makes it possible to easily lift the larvae receiving unit 600 when moving the larvae to another place or containing new larvae, and to facilitate replacement when the larvae receiving unit 600 is damaged. And do not be limited by obstacles during cleaning work.

In particular, the mesh formed in the lower part of the larval accommodation unit 600 by the spacer 240 is completely opened to facilitate the flow of seawater, so that excrement or sludge can be smoothly discharged according to the flow of seawater.

In addition, since the larval accommodation unit 600 is precisely seated at a designated position by the spacer 240 , it can be arranged neatly when the larval accommodation unit is disposed inside the water tank 200 .

According to an embodiment that can be further added in the present invention, as shown in FIGS. 2 to 4 and 8 , provided in the upper part of the water tank 200 so as to cross the top of the above-described larval receiving unit 600 . It may further include a seawater circulation inducing unit 800 to be.

The seawater circulation induction unit 800 sucks seawater through a suction port communicating with the circulation pump 850 provided inside the water tank 200 and discharges the seawater into the larval accommodation unit 600 .

Specifically, the seawater circulation inducing unit 800 is made to be long in the form of a pipe to correspond to the matrix of the larval receiving units 600 arranged in plurality.

The embodiment of Figure 7 is a configuration for cultivating larvae of the floating phase (length of about 400 μm or less). After being transferred to the larval receiving unit, the chives continue to grow.

According to the embodiment of Figure 7, a stopper 622 for closing the entrance of the guide tube 620 is provided detachably, and when the floater is cultured, the stopper 622 is mounted to cause the larvae in the floater state to be lost. to prevent

In addition, the stopper 622 as described above prevents seawater from flowing through the guide pipe 620 to prevent an upward flow of water from occurring inside the larval accommodation unit 600 .

Here, the seawater circulation inducing unit 800 has a plurality of discharge holes 880 formed through the bottom surface to induce a portion of the seawater sucked through the circulation pump 850 to be discharged into the larval receiving unit 600 . As a result, fresh seawater containing the amount of dissolved oxygen required for survival of the floating stage larvae is supplied to the inside of the larval accommodation unit 600, and at the same time a downwater flow occurs, so that the excrement or sludge of the larvae is transferred through the mesh on the bottom of the larval accommodation unit. naturally excreted.

In addition, the diameter of the discharge hole 880 is preferably 10% or less compared to the diameter of the suction port to discharge seawater with a certain intensity or more. At this time, discharging seawater over a certain intensity means that the seawater is strong enough to generate a descending water flow inside the larval receiving unit 600 and at the same time as the seawater at a height so that foam does not occur inside the larval receiving unit 600. means to drop. Accordingly, foam does not occur inside the larval receiving unit 600, and thus the death of the accommodated floating larvae can be prevented, and the excrement or sludge of the larvae can be naturally discharged to the outside by the descending water flow.

Furthermore, referring to FIG. 8 , in the seawater circulation inducing part 800 , a surplus drain pipe 810 may be formed at the end of the seawater circulation stop starting from the suction port, and the surplus drain pipe 810 is the discharge hole. (880) so that the excess seawater that has not been discharged can be discharged.

In addition, at least one auxiliary drain pipe 830 is formed between the surplus drain pipe 810 and the suction port in the seawater circulation inducing unit 800 so that the sucked seawater can be dispersedly discharged.

Here, the amount of seawater discharged from the surplus drain pipe 810 is controlled by the flow control valve 820 to control the strength of the seawater discharged from the discharge hole 880, and the seawater discharged from the auxiliary drain pipe 830 The amount is controlled by the auxiliary control valve 840, and the auxiliary control valve 840 can control the direction and water pressure in which seawater flows in the seawater circulation induction unit 800 in connection with the flow control valve 820. .

The seawater circulation inducing unit 800 as described above, as shown in FIG. 8, allows seawater to circulate evenly throughout the inside of the water tank 200, and the flow control valve 820 and the auxiliary control valve 840. By adjusting each independently or in connection with each other, it is possible to finely control the flow and water pressure of seawater.

As such, by being able to delicately control the flow and water pressure of seawater, it is easy to optimize the growth environment of the larvae, as well as strengthen the water pressure inside the seawater circulation induction unit 800 during maintenance so that scale or sludge can be smoothly removed. do.

In particular, plankton or organic fragments, which are the food of the larvae in the floating and intermediate breeding period, are periodically supplied to the water tank 200 from the outside, and the seawater inside the water tank 200 must be circulated so that the larvae can smoothly ingest the food.

At this time, in order to prevent the food from leaking to the outside, the seawater supply unit 400 blocks the supply of seawater so that the seawater does not overflow into the drain pipe 220 of the water tank 200, and the seawater circulation induction unit 800 By driving only the circulation pump 850 of the larvae, seawater mixed with food can be continuously supplied to the larval accommodation unit 600 while circulating only within the water tank 200 .

According to the embodiments of the present invention described so far, the following effects can be expected.

First, it is possible to simultaneously or selectively culture the larvae of the floating stage (length of about 400 μm or less) and the intermediate breeding phase (length of about 300 μm to 5 cm) of shellfish, so it has the effect of maximizing the efficiency and productivity of work. .

Second, when separating the larvae that have grown from the floating stage to the mid-season larvae, only the larval receiving unit can be taken out and only the larvae can be separated and retrieved easily. There is an effect that can be done.

Third, it is possible to reduce installation and maintenance costs by excluding the installation of air bubbles necessary for the survival of shellfish larvae by allowing the seawater to flow continuously without stagnating so that the dissolved oxygen amount of the seawater flowing into the tank can be continuously maintained. By preventing foam (bubble) from being generated when seawater is supplied to the grandfather, there is an effect that can prevent the death of larvae due to excessive generation of foam (bubble).

Fourth, by discharging seawater into the larval accommodation unit through the seawater circulation induction unit, dissolved oxygen can be smoothly supplied to the larvae in the floating stage, whereby seawater continuously flows through the bottom mesh of the larval accommodation unit to form a descending water flow Therefore, there is an effect that the excrement of the floating larvae is naturally discharged without any special work.

Fifth, the seawater flowing into the tank part continuously flows through the through-hole on the side through the bottom mesh of the larval accommodation unit to form an ascending water flow, so the excrement of the intermediate breeding period is continuously discharged to the outside without being stacked on the bottom. .

Sixth, since the excrement of the larvae is discharged naturally, the worker does not need to clean it frequently, which can reduce the labor force.

Seventh, as the excrement of larvae does not accumulate, the number of larvae can be increased as much as possible.

The foregoing has outlined rather broadly the features and technical advantages of the present invention so that the following claims may be better understood. Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the following claims rather than the above detailed description, and all changes or modifications derived from the claims and their equivalents should be construed as being included in the scope of the present invention.

200: water tank part
220: drain pipe
240: spacer member
400: sea water supply unit
420: water pipe
440: filter tank
442: filter net
600: larval receiving unit
620: guide tube
622: stopper
800: seawater circulation induction unit
810: excess drain pipe
820: flow control valve
830: auxiliary drain pipe
840: auxiliary control valve
850: circulation pump
880: discharge hole

Claims (8)

It is installed in the indoor space on land adjacent to the sea, and is supplied with seawater from the sea and is an artificial seedling aquaculture device that nurtures larvae in the floating stage (full length of 400㎛ or less) or intermediate breeding stage (300㎛ to 5㎝ in length) of shellfish. in,
It is made to have a space portion for accommodating seawater, the side wall is a water tank in which a through-formed drainage pipe is provided;
a seawater supply unit installed directly or indirectly in the water tank to supply seawater to the water tank; and
a larval accommodation unit having a space portion for accommodating a certain number of larvae, a plurality of arranged inside the tank portion, and a bottom surface formed with a net having a hole having an area smaller than that of the larvae;
Shellfish artificial seedling culture apparatus comprising a. The method of claim 1,
A plurality of drain pipes of the water tank are provided at regular intervals along the longitudinal direction of the side wall,
A through hole coupled to the drain pipe is formed on one side of the larval accommodation unit to discharge seawater to the outside when a rising water flow occurs inside the larval accommodation unit,
A guide pipe extending a certain length from the through hole is formed inside the larval accommodation unit, and the excrement of the larvae that floated to the surface by the rising water flow is discharged to the outside while being spaced apart from the inner surface of the larval accommodation unit. A shellfish artificial seedling culture device with According to claim 1,
a seawater circulation inducing part provided on the upper part of the water tank to cross the top of the larval accommodation unit, sucking seawater through a suction port communicating with a circulation pump provided inside the water tank, and discharging seawater into the larval accommodation unit;
Shellfish artificial seedling culture apparatus, characterized in that it further comprises. 4. The method of claim 3,
The seawater circulation induction part is made long in the form of a pipe to correspond to the matrix of the larval accommodation unit arranged in plurality, and a plurality of discharge holes are formed through the bottom surface to discharge a part of the seawater sucked through the circulation pump into the larval accommodation unit. Shellfish artificial seedling culture apparatus, characterized in that inducing it to be possible. 5. The method of claim 4,
The seawater circulation induction unit, starting with the intake port, an excess drain pipe is formed at the end where the circulation of seawater is stopped, and the excess seawater not discharged through the discharge hole is discharged. 6. The method of claim 5,
The seawater quantity discharged from the surplus drain pipe is controlled by a flow control valve, whereby the strength of the seawater discharged from the discharge hole is controlled. 7. The method of claim 6,
The seawater circulation inducing unit, at least one auxiliary drain pipe is formed between the surplus drain pipe and the suction port, and the sucked seawater is dispersed and discharged. 8. The method of claim 7,
The amount of seawater discharged from the auxiliary drain pipe is controlled by an auxiliary control valve,
The auxiliary control valve is a shellfish artificial seedling culture apparatus, characterized in that in connection with the flow control valve to control the flow direction and water pressure of seawater in the seawater circulation induction unit.

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