KR102419267B1 - Auto feeding system for fish farming cages - Google Patents

Abstract

The present invention relates to an unmanned feeding system for aquaculture. An unmanned feed supply system according to the present invention includes: a dry hopper for storing farm feed and opening and closing a feed outlet according to an external control; After inhaling air, the intake air is discharged through a pre-equipped air output pipe, and it is connected to the feed outlet of the dry hopper, and when the feed outlet of the dry hopper is opened, the air suction function causes the farm feed of the dry hopper. a hopper loader that sucks in and discharges it together with air through the air output pipe; a pumping unit for introducing water through the first pipe and discharging the introduced water through a second pipe; Venturi showing the venturi effect of flowing water flowing in through the second pipe of the pumping unit and flowing in air or feed through the air output pipe of the hopper loader according to the pressure difference according to the transmission of the water and flowing it out together with the water duct; After controlling the operation of the pumping unit and the hopper loader, and controlling the feed outlet of the dry hopper to be opened, the operation of the pumping unit and the hopper loader is maintained after a preset first time elapses. It is characterized in that it comprises a control unit for controlling the feed outlet of the closed.

Description

Unmanned feed supply system for farms {AUTO FEEDING SYSTEM FOR FISH FARMING CAGES}

The present invention relates to an unmanned feed supply system for a farm, and more particularly, to a system for supplying feed without human assistance in a farm raising fish, shrimp, and the like.

In aquaculture, especially shrimp, proper feed supply is the most basic and important factor for the growth of aquaculture organisms and management of the breeding environment, and is a key technology that determines the success or failure of aquaculture.

Careful management of feeding is necessary to manage both optimum feed volume and maximum growth and good water quality.

Shrimp have a nature of resting during the day and being active at night, and have a habit of staying on the bottom.

However, in aquaculture, if food is supplied, they feed during the day.

In this case, it is advantageous for growth to supply a small amount frequently rather than supply a large amount per day.

Excessive supply of feed to aquaculture target species not only reduces the efficiency of energy metabolism within the target species, but also increases water pollution due to feed loss. Nutrients should be provided in the required amount.

Shrimp has a rectum in the form of an intestine, and it takes about 2 hours to digest food after ingestion.

Therefore, in order to obtain efficient feed conversion efficiency (FCR), the daily feed amount is optimal for feeding every 2 hours, but there are limitations such as feed supply manpower and feed water loosening.

The supply of shrimp feed at the farm varies depending on the breeding water temperature and breeding density, but it is distributed 4 to 6 times a day.

In general, it is better to increase the number of feedings as the water temperature increases. The shrimp in the pond are evenly distributed throughout the entire area, so feed must be evenly distributed throughout the area. advantageous to

The formulated feed is in the form of granular pellets containing the nutrients of shrimp and is decomposed in water. It has been reported that these formulations lose 70% of their feed as they decompose or rot before the shrimp can eat them. In terms of the quality of the feed, the degree of physical loosening should be carefully considered. This is because not only the loss of key nutrients, but also the water pollution due to the feed can be severe if released too easily.

The nutrients in the feed start to fall from the moment it enters the water, and the nutrients can be exhausted even after 1 hour. If the number of feeds is too small, the shrimp may not eat enough feed evenly, which may cause differences between individuals, resulting in increased hair loss and mortality as an official phenomenon.

Patent Publication No. 10-2019-0023802

The present invention was devised to meet the above-mentioned prior request, and by configuring automatic feed feeding at a preset time period without the use of manpower, optimization of FCR (feed conversion efficiency), standardization of feed water loosening, and improvement of feed packaging This is to provide a system that helps to increase profitability of the aquaculture business, such as improving the cost of feed prices.

In order to achieve the above object, an unmanned feed supply system for a farm according to the present invention includes: a dry hopper for storing farm feed and opening and closing a feed outlet according to an external control; After inhaling air, the intake air is discharged through a pre-equipped air output pipe, and it is connected to the feed outlet of the dry hopper, and when the feed outlet of the dry hopper is opened, the air suction function causes the farm feed of the dry hopper. a hopper loader that sucks in and discharges it together with air through the air output pipe; a pumping unit for introducing water through the first pipe and discharging the introduced water through a second pipe; Venturi showing the venturi effect of flowing water flowing in through the second pipe of the pumping unit and flowing in air or feed through the air output pipe of the hopper loader according to the pressure difference according to the transmission of the water and flowing it out together with the water duct; After controlling the operation of the pumping unit and the hopper loader, and controlling the feed outlet of the dry hopper to be opened, the operation of the pumping unit and the hopper loader is maintained after a preset first time elapses. It is configured to include a control unit for controlling the feed outlet of the closed.

Here, the venturi pipe includes: a flow inlet connected to the second pipe of the pumping unit; an air inlet connected to the air output pipe of the hopper loader; and a flow rate discharge unit for discharging the water introduced through the wandering inlet and the air and feed introduced through the air inlet, and is located between the flow rate inlet and the air inlet of the venturi pipe and the air inlet It is characterized in that the size of the gap color of the region where the venturi effect occurs, which meets the wealth and shows the venturi effect, ranges from 2 mm to 3 mm.

Here, the buoyancy unit floating using buoyancy on the surface of the farm; It is rotatably configured on both sides of the buoyancy part so that the buoyancy part moves the farm, and the first oxygen supply part that pumps up the water from the upper level of the farm so that the water is broken into foam and then falls so that oxygen is supplied to the upper water level. , The venturi tube may be provided under the buoyancy part.

Here, the first oxygen supply unit, a driving motor located on the upper surface of the buoyancy body;

a rotating shaft rotated by the driving motor; a plurality of aberrations located on both sides of the buoyancy body and rotatably fixed to the rotation shaft and rotated when the driving motor is driven so that the buoyancy body moves the water surface of the farm; and a rotary blade configured in the water wheel to pump up water from the upper water level of the farm when the water wheel is rotated so that the water is broken into foam and then to fall so that oxygen is supplied to the upper level water level.

Here, the pumping unit, a first pipe consisting of a first predetermined length in the lower portion of the buoyancy body; a second pipe configured to a predetermined second length in the lower portion of the buoyancy body; It is located on the upper surface of the buoyancy body and comprises a pump that allows water to be pumped from the first pipe toward the second pipe, and the venturi pipe discharges the water pumped to the second pipe to the water level below the farm. The air output pipe of the hopper loader extends from the upper side of the buoyancy body to the venturi pipe so that when water is discharged through the venturi pipe, air in the atmosphere is sprayed through the venturi pipe by the venturi principle, so that Oxygen can be supplied.

Here, after providing a predetermined space and heating the air in the space, the heating air is supplied to the water level below the farm through the hopper loader.

As described above, according to the present invention, it is possible to automatically supply feed for aquaculture organisms to a shrimp farm on land or a cage farm on the sea at a predetermined time.

In particular, in the prior art, while humans move the farm, feed is sprayed to the upper layer of the farm water on the outside of the farm except for the dead zone at 3-4 hour intervals (5 times a day), and in some cases, human Although a system that reduces movement and supplies feed is being used, it is common for aquaculture to fail due to water pollution due to feed decay caused by over-injection of feed. It achieves the effect of preventing such feed over-injection.

In particular, a venturi tube that automatically prevents backflow from occurring during operation and stop of the blower is used to prevent backflow, and even when feed supply is cut off, the air supply is maintained through the same tube for a certain period of time. By doing so, there is an effect of cleaning the feed residues remaining in the pipe and the reverse flow valve after feeding the feed.

Furthermore, by feeding the feed together with air into the water, the force of the air trying to rise in the water in an upward direction affects the feed sinking into the water, so that the time the feed sinks into the water can be longer, This reduces the rate at which feed sediments fall on the bottom of the farm and can especially help the feeding activity of aquaculture organisms.

1 is a schematic configuration diagram of an unmanned feed supply system for a farm according to an embodiment of the present invention;
Figure 2 is a view showing the venturi tube of Figure 1,
3 and 4 are views showing an example in which each component of the unmanned feed supply system of FIG. 1 is installed;
4 to 5 are views showing an additional structure that allows the inside of the farm to move while floating in the water in the unmanned feed supply system of the farm of FIG. 1 .

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

Hereinafter, each embodiment according to the present invention is merely an example for helping the understanding of the present invention, and the present invention is not limited to these embodiments. In particular, the present invention may be composed of a combination of at least any one of individual components and individual functions included in each embodiment.

A schematic configuration of an unmanned feed supply system for a farm according to an embodiment of the present invention is shown in FIG. 1 .

As shown in the figure, the unmanned feed supply system is configured to include a drying hopper (1), a hopper loader (2), a pumping unit (3), a venturi tube (4), and a control unit (5).

Here, the dry hopper 1 is to store feed, which is feed for the farm, and may be provided with an automatic weighing function. Since the outside air mixed with the pre-equipped blower is uniformly dispersed into the dryer through the heater through the rectification process, there is little difference between the set temperature and the feed temperature.

Since the above-described function and configuration of the drying hopper 1 corresponds to a known technology, a more detailed description will be omitted.

The feed stored in the drying hopper 1 may be discharged to the outside through a predetermined feed outlet.

Here, the feed outlet is provided under the lower end or side of the drying hopper 1 and may be opened and closed under the control of the controller 5 as will be described later.

The opening and closing of the feed outlet may be made in a hinged or sliding manner, and since the opening and closing structure of a predetermined entrance corresponds to a known technology, a more detailed description will be omitted.

The hopper loader (2) corresponds to a type of suction transfer device, and is a device that automatically supplies feed using the suction power of air obtained by rotating a powerful impeller. may be configured to enable the supply of

This hopper loader 2 performs a function of sucking air and then discharging the sucked air through the air output pipe 21 provided, and it is connected to the feed outlet of the drying hopper 1 by a predetermined pipe.

Accordingly, when the feed outlet of the dry hopper 1 is opened, the aquaculture feed of the dry hopper 1 can be sucked by the air suction function and discharged together with the air through the air output pipe 21 .

That is, under the premise that the hopper loader 2 is operating, only air passes through the air output pipe 21 of the hopper loader 2 when the feed outlet of the dry hopper 1 is blocked (closed), and if the dry hopper When the feed outlet in (1) is open (open), air and feed pass together.

The structure in which a predetermined pipe (ie, a pipe connected to the drying hopper 1) is connected to the hopper loader 2 in this way so that the feed in the drying hopper 1 is sucked together during operation corresponds to a known technique. A more detailed description will be omitted.

The pumping unit 3 is configured to include a first pipe 31 , a second pipe 32 , and a pump 33 , and water is introduced through the first pipe 31 by the operation of the pump 33 . and discharges the introduced water through the second pipe 32 .

Here, the function and structure of the pump 33 for pumping water corresponds to a known technology, and thus a more detailed description thereof will be omitted.

The venturi tube 4 drains the water flowing in through the second pipe 32 of the pumping unit 3 and also through the air output tube 21 of the hopper loader 2 according to the pressure difference according to the transmission of the water. It performs the function of representing the venturi effect of introducing air and flowing it out together with the corresponding water.

Here, the venturi effect is that as the size of the inner radius of the predetermined tube decreases, the speed of the fluid increases and the pressure decreases. It means that a suction effect occurs through the connector with a large force.

The venturi effect and the tube itself exhibiting the venturi effect correspond to known techniques.

However, the difference is that the venturi tube 4 in this embodiment is configured to maximize the effect of sucking air as well as feed at once by the above-described venturi effect as the flow of water occurs.

Specifically, the venturi tube 4 is configured to include a flow inlet 41 , an air inlet 42 , and a flow outlet 43 , where the flow inlet 41 is the first of the pumping unit 3 . 2 is connected to the pipe 32, the air inlet 42 is connected to the air output pipe 21 of the hopper loader 2, the flow outlet 43 is the inlet of water and air introduced through the drift inlet The air introduced through the portion 42 is to flow together or the air and the feed together.

For reference, an example of the venturi tube 4 is shown in FIG. 2 .

In particular, the size of the gap (in FIG. 2) of the venturi effect generating region 44, which is located between the flow inlet 41 and the air inlet 42 of the venturi tube 4 and meets the air inlet 42 to exhibit the venturi effect. It can be said that the characteristic is that the thickness of the vertical line corresponds to the size of the gap) is configured to be 2mm to 3mm unlike the conventional one.

If the gap size of the corresponding venturi effect generation region 44 is smaller than 2 mm, feed cannot pass smoothly, and if it is larger than 3 mm, power consumption is further increased as the venturi effect decreases.

The inner radius of the flow inlet 41 of the venturi tube 4 may be in the range of 90 mm to 100 mm, and the inner radius of the venturi effect generating region 44 may be in the range of 30 mm to 40 mm.

On the other hand, the control unit 5 performs a function of controlling the operations of the drying hopper 1, the hopper loader 2, and the pumping unit 3, specifically, the pumping unit 3, the pumping operation, the hopper loader (2) Control the air supply operation of the drying hopper (1) can control the opening and closing of the feed outlet.

At this time, the control process of the controller 5 has a predetermined order, and is as follows.

The control unit 5 first controls the hopper loader 2 and the pumping unit 3 to operate.

Accordingly, water is supplied through the venturi tube 4, and air is introduced into the venturi tube 4 by the venturi effect of the venturi tube 4 and the air supply function of the hopper loader 2, and then the flow rate is discharged together with the water. It is discharged through the portion (43).

At this time, the hopper loader 2 performs a function of supplying air, and power consumption can be minimized by the venturi effect of the above-described venturi tube 4 .

As such, by supplying air together with water, it is possible to minimize the stress of aquatic organisms due to the supply of oxygen.

In this state, the control unit 5 opens the feed outlet of the drying hopper 1 at the time when feed is required.

Then, the feed is discharged through the pipe connected to the feed outlet, and by the air supply function of the hopper loader (2), the farm feed in the dry hopper (1) is delivered together with the air to the venturi pipe (4) through the air output pipe (21). In the end, water, air, and feed are discharged together through the flow rate discharge unit 43 of the venturi tube 4 .

As such, water and air are supplied together during the feeding process, thereby minimizing the shock during feeding, damage to the feed, and stress generation of aquatic organisms.

Then, the control unit 5 controls the feed outlet to be closed when a preset time elapses after the feed outlet is opened, that is, when it is determined that an appropriate amount of feed has been supplied.

At this time, the control unit 5 maintains the operation of the hopper loader 2 and the pumping unit 3 for a predetermined time.

In that case, no feed remains between the pipe connected between the drying hopper (1) and the hopper loader (2) or the pipe connected between the hopper loader (2) and the venturi pipe (4), all of which is supplied into the water through the venturi. do.

If the feed remains in the predetermined tube, spoilage may occur, and thus a deadly toxin may occur to aquatic organisms. It is desirable to keep the operation of

An example in which the unmanned feed supply system of the aquaculture farm of FIG. 1 is constructed is shown in FIGS. 3 and 4 .

As shown in the drawings, the drying hopper 1, the hopper loader 2, and the pumping unit 3 are installed on the ground, and the venturi tube 4 may be provided in the water of the farm.

In particular, the pumping unit 3 may suck water from the aquaculture water supply pond and then supply it to the aquaculture farm.

On the other hand, in the above-described embodiment, each component of the unmanned feed supply system of the farm is installed in a fixed position as an example,

In order to evenly supply air (oxygen), water, and feed to the aquaculture farm, it is not necessary to have all the devices in a fixed position.

Hereinafter, such another embodiment will be described.

The unmanned feed supply system for a farm according to another embodiment of the present invention may further include a buoyancy unit 110 and a first oxygen supply unit 120 .

Here, the buoyancy unit 110 is to float on the surface of the farm by using buoyancy, and the first oxygen supply unit 120 is rotatably configured on both sides of the buoyancy unit 110 so that the buoyancy unit 110 moves the farm. It functions to supply oxygen to the upper water level by pumping up the water from the upper level of the farm and allowing the water to fall after breaking into foam.

In particular, the venturi tube 4 may be provided on the lower side of the buoyancy unit 110 .

Here, the first oxygen supply unit 120 is a drive motor positioned on the upper surface of the buoyancy body, a rotary shaft rotated by the drive motor, is located on both sides of the buoyancy body and is rotatably fixed to the rotary shaft to rotate when the drive motor is driven It is composed of a plurality of waterwheels and waterwheels that allow the buoyant body to move the water surface of the farm, and when the water wheel rotates, the water from the water level in the upper level of the farm is pumped up, and the water is broken into foam and then falls so that oxygen is supplied to the water level at the upper level. It may be composed of

Hereinafter, elements different from the previous embodiment (added or changed) will be mainly described.

For reference, FIG. 5 is a plan view of a device including the above-described buoyancy unit 110 and the like, and FIG. 6 is a side view thereof.

As shown in the drawings, in the unmanned feed supply system, the buoyancy unit 110, which floats using buoyancy on the surface of the farm, is rotatably configured on both sides of the buoyancy unit 110, so that the buoyancy unit 110 is the aquaculture farm. It is configured to include a first oxygen supply unit 120 that moves and pumps water from the upper water level of the farm so that the water is broken into foam and then falls so that oxygen is supplied to the upper water level, and in particular, the buoyancy unit 110 has a The venturi tube 4 described in the embodiment is provided so that the air in the atmosphere is sprayed together with the water when pumping to the lower water level of the farm, so that oxygen is supplied to the lower water level.

The buoyancy unit 110 is a buoyancy unit 110 material that is composed of a buoyancy body 111 that floats on the surface of the farm by using buoyancy, so that the components are installed. include

Here, the buoyancy unit 110 is, for example, three buoyancy bodies 111 are arranged at regular intervals and then coupled to each other through the frame 112 to provide a place for the components to be installed.

The first oxygen supply unit 120 is rotatably configured on both sides of the buoyancy unit 110 so that the buoyancy unit 110 moves the aquaculture farm and pumps up water from the upper level of the farm so that the water is broken into foam and then dropped As a means for supplying oxygen to the upper water level, the drive motor 121 positioned on the upper surface of the buoyancy body 111, the rotation shaft 122 rotated by the drive motor 121, both sides of the buoyancy body 111 It is located in and is rotatably fixed to the rotation shaft 122 and rotates when the driving motor 121 is driven so that the buoyancy body 111 moves the water surface of the farm. When the water wheel 123 rotates, the water from the upper water level of the farm is pumped up so that the water is broken into foam and then dropped so that oxygen is supplied to the upper water level, and the like.

Therefore, according to the first oxygen supply unit 120, the buoyancy body 111 is driven to move the farm and at the same time oxygen is supplied to the water in the upper layer of the farm, so that the upper and lower water are circulated by the vortex to circulate the upper and lower water levels. It is possible to keep the water temperature at the water level constant, and to clean the section where the animals being farmed, such as shrimp, ate feed.

On the other hand, as mentioned in the previous embodiment, the venturi tube 4 allows the water of the aquaculture farm configured to the lower part of the buoyancy body 111 to be pumped and sprayed, and when the water is sprayed, the air in the atmosphere passes through the venturi tube 4 . By spraying together, oxygen can be supplied to the water level below the farm. At least some of the components of the previous embodiment connected to the venturi tube 4 may be provided on the upper surface or the ground of the buoyancy body 111 .

For example, the pumping unit 3 is a first pipe 31 configured with a predetermined first length on the lower side of the buoyancy body, and a second pipe 32 configured with a second predetermined length on the lower side of the buoyancy body. ) and located on the upper surface of the buoyancy body and may be configured to include a pump 33 that allows water to be pumped from the first pipe 31 toward the second pipe 32 .

In particular, the first pipe 31 is extended to a length corresponding to the water level in the upper layer of the farm at the lower side of the buoyancy body 111 , and the second pipe 32 is the lower water level in the farm at the lower side of the buoyancy body 111 . may be extended to a length corresponding to .

Here, the venturi tube 4 may allow air to be introduced through the air output tube 21 to be sprayed together when water from the farm is discharged through the second pipe 32 .

In addition, it is possible to correspond to the water level of the farm by having a configuration in which the length of the second pipe 32 is extended or reduced, and more preferably, the venturi pipe 4 is a plurality of the second pipe 32 . It is good to be configured with a constant height.

Therefore, the lower part of the buoyant body 111, that is, by allowing air in the atmosphere to be sprayed through the venturi tube 4 located above the water level in the lower layer of the farm, oxygen is placed in the water level in the lower layer of the aquaculture plant where organisms such as shrimp mainly inhabit. The number of bacteria can be reduced by oxidizing sediments such as ammonia deposited on the bottom of the farm and circulating water from the bottom to the top.

In addition, as the length of the first pipe 31 corresponds to the water level of the upper layer of the farm and the length of the second pipe 32 corresponds to the water level at the bottom of the farm, the upper layer having a relatively high water temperature is the lower layer having a low water temperature By circulating to the water level, the water temperature of the upper water level and the lower level water level can be kept constant.

Meanwhile, the present invention may further include a configuration of the air heating unit 140 for heating oxygen supplied to the lower water level through the air output pipe 21 to have a predetermined temperature.

The air heating unit 140 provides a predetermined space to the buoyancy body 111 and supplies heated air to the inside of the case 141 and the case 141 in which one end of the air output pipe 21 is extended. and an air heating means 142 and the like.

Here, the air heating means 142 includes a communication body communicating with the case 141, a driving fan configured inside the communication body to allow outside air to flow into the case 141, and a communication body configured inside the communication body, Since it may include a heat exchanger such as a coil for heat-exchanging external air moving into the interior of the communication body to a predetermined temperature, or the like, or may have a known configuration, a detailed description thereof will be omitted.

Therefore, according to the air heating unit 140, the air heated in the venturi tube 4 is supplied and sprayed on the lower water level of the aquaculture plant, thereby increasing the water temperature and allowing the lower and upper water to convect so that the temperature of the aquaculture water in the farm is generally can be made to rise.

Hereinafter, the operation of the unmanned feed supply system having the configuration as described above will be described as follows.

First, when the driving motor 121 of the first oxygen supply unit 120 is driven, the plurality of aberrations 123 configured on both sides of the buoyancy body 111 rotates, and accordingly, the buoyancy body 111 moves the farm. do.

At the same time, when the water wheel 123 rotates, the water at the upper water level of the farm is pumped up by the rotary blades 124 configured in the plurality of water turbines 123, broken into foam, and then dropped to supply oxygen to the upper water level of the farm.

That is, according to the first oxygen supply unit 120, the buoyancy body 111 can move the farm while oxygen can be supplied to the upper water level of the farm.

Then, as described above, when the pump 33 of the pumping unit 3 is driven in a state in which oxygen is supplied to the upper water level of the aquaculture farm by the first oxygen supply unit 120, the aquaculture water of the farm is a first pipe 31 . After being supplied to the second pipe 32 in a pumped state, it is discharged through the venturi tube 4 located at the water level in the lower level of the farm. At this time, air in the atmosphere is sprayed through the venturi tube 4 by the venturi principle. Oxygen is supplied to the lower level of the farm.

Of course, at this time, it is assumed that the hopper loader 2 is operated by the control unit 5 .

That is, when the buoyant body 111 moves the farm and oxygen is supplied to the upper water level of the farm, oxygen can be supplied to the lower water level of the farm.

On the other hand, as described above, when oxygen is supplied to the upper and lower water levels of the farm by the first oxygen supply unit 120 , the drying hopper 1 and the pumping unit 3 , the air is heated by the air heating unit 140 . As the air injected through the venturi has a heated state, the temperature of the water level in the lower layer of the farm rises, and accordingly, the upper and lower layers of water are convected to increase the overall temperature of the cultured water in the farm.

Therefore, according to the above-mentioned bar, the pump 33 and the buoyancy body configured in the buoyancy body 111 and the pump 33 configured in the buoyancy body 111 to supply oxygen to the upper water level while moving the aquaculture farm through the water wheel structure composed of the buoyancy body 111 and the drive motor 121 It is possible to supply oxygen to the water level in the lower layer while moving the farm through the venturi tube 4 extending to the lower part of the 111.

In addition, it is possible to increase the water temperature using convection by allowing high-temperature air to be supplied to the water level below the farm through the venturi tube (4).

If the drying hopper (1) and the hopper loader (2) are provided on the ground, when the hopper loader (2) and the venturi tube (4) are connected with a predetermined flexible tube, according to the control of the control unit (5), the farm It is possible to evenly inject feed and air while moving.

In the above-described embodiment, the pump 33 of the pumping unit 3 is provided in the upper layer of the buoyancy body 111 as an example, but the pump 33 may also be fixedly installed on the ground, in this case the pump ( 33), as long as the second pipe 32 is extended and connected to the lower layer of the buoyancy body 111 as described above, it may also be made of a flexible material.

That is, the venturi tube 4 causes the water pumped by the second pipe 32 to be discharged to the lower level of the farm, and the air output tube 21 of the hopper loader 2 is connected from the upper side of the buoyant body to the venturi tube 4 When water is discharged through the venturi tube 4, the air in the atmosphere is sprayed through the venturi tube 4 according to the venturi principle. it can be

The present invention is not limited to the specific embodiments described above, and various modifications and variations can be made without departing from the spirit of the present invention. It will be apparent that such modifications and variations are included in the present invention provided they fall within the scope of the appended claims.

1: Dry Hopper 2: Hopper Loader
3: pumping part 4: venturi tube
5: control unit 110: buoyancy unit
120: first oxygen supply unit

Claims (6)

a dry hopper that stores the farm feed and opens and closes the feed outlet according to external control;
After inhaling air, the intake air is discharged through a pre-equipped air output pipe, and it is connected to the feed outlet of the dry hopper. a hopper loader for sucking in and discharging it together with air through the air output pipe;
a pumping unit for introducing water through the first pipe and discharging the introduced water through a second pipe;
Venturi showing the venturi effect of flowing water flowing in through the second pipe of the pumping unit and flowing in air or feed through the air output pipe of the hopper loader according to the pressure difference according to the transmission of the water and flowing it out together with the water duct;
After controlling the operation of the pumping unit and the hopper loader, and controlling the feed outlet of the dry hopper to be opened, the operation of the pumping unit and the hopper loader is maintained after a preset first time elapses. a control unit controlling the feed outlet to be closed;
A buoyancy unit that floats on the surface of the farm using buoyancy;
The buoyancy part is rotatably configured on both sides of the buoyancy part so that the buoyancy part moves the farm, and the water from the upper level of the farm is pumped up so that the water is broken into foam and then dropped so that oxygen is supplied to the upper water level. Includes a first oxygen supply unit,
The venturi tube is provided under the buoyancy part,
The first oxygen supply unit may include: a driving motor located on an upper surface of the buoyancy unit; a rotating shaft rotated by the driving motor; a plurality of aberrations located on both sides of the buoyancy unit and rotatably fixed to the rotation shaft and rotated when the driving motor is driven so that the buoyancy unit moves the water surface of the farm; and a rotary blade configured to the water wheel so that oxygen is supplied to the upper water level by pumping up the water from the water level at the upper level of the farm when the water wheel is rotated so that the water falls into foam,
The pumping unit may include: a first pipe configured to have a first predetermined length on the lower side of the buoyancy unit; a second pipe configured to have a second predetermined length on the lower side of the buoyancy part; It is located on the upper surface of the buoyancy part and is configured to include a pump that allows water to be pumped from the first pipe toward the second pipe,
The venturi tube is such that the water pumped through the second pipe is discharged to the water level below the farm,
The air output pipe of the hopper loader extends from the upper side of the buoyancy part to the venturi pipe so that when water is discharged through the venturi pipe, air in the atmosphere is sprayed through the venturi pipe by the venturi principle so that oxygen is supplied to the lower level of the aquaculture plant An unmanned feed supply system for aquaculture, characterized in that it does. According to claim 1,
The venturi tube is
a flow inlet connected to the second pipe of the pumping unit;
an air inlet connected to the air output pipe of the hopper loader;
It is configured to include a flow rate discharge unit for discharging the water introduced through the wandering inlet and the air and feed introduced through the air inlet,
An unmanned feed supply system for aquaculture farms, characterized in that the gap size between the flow inlet and the air inlet of the venturi tube and in the area where the venturi effect occurs when meeting the air inlet and exhibiting the venturi effect is 2mm to 3mm. delete delete delete According to claim 1,
After providing a predetermined space and allowing the air in the space to be heated, the aquaculture farm further comprising an air heating unit that enables heating of the water temperature through convection by supplying heated air to the water level below the farm through the hopper loader of unmanned feeding system.

Images