KR101597972B1 - Dual airlift apparatus - Google Patents

Abstract

A dual airlift apparatus according to an embodiment of the present invention comprises: a base frame installed on the floor of a fish farm; a first airlift device arranged on the upper side of the base frame; and a second airlift device arranged on the upper side of the base frame and has the height lower than that of the first airlift device. The first or the second airlift device exposed to the water surface is selectively operated. The present invention improves a structure to normally form a water flow even during the exchange of fish farming water.

Description

[0001] Dual airlift apparatus [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air lift apparatus, and more particularly, to a dual air lift apparatus in which a plurality of air lift apparatuses having different heights are disposed so as to form a water flow during a process of replacing aquaculture water.

The trend of farming methods such as fish and shrimp tends to increase the burden of facilities and operation costs in the past when conversion from low-density noodles to high-density tanks is on the rise.

In recent years, high-density circulation filtration farms use water turbines, air feeders, or even liquid oxygen, high-pressure oxygen, and oxygen generators to supply less oxygen in the water, resulting in inefficient It is in the state that the farm is operating by the method of.

In the case of using pure oxygen such as liquid oxygen, a de-gassing apparatus is used to reduce the toxic carbon dioxide gas generated by fish in the water, or a foam skimmer is used to remove dissolved organic matter. And so on. However, these devices are costly because they are expensive, and there is a problem that it is expensive to manage and operate such devices.

In order to solve such a problem, Korean Patent Application No. 10-2011-0090665 entitled " Aquaculture System and Shrimp Culture Method Using Air Lift Device ", air is supplied to the inside of a pipe to discharge fine air bubbles together with water, An air lift device for providing oxygen has been disclosed.

However, in the conventional "aquaculture system and shrimp culture method using air lift apparatus", air bubbles can not be discharged from the air lift apparatus when water level is lowered, and oxygen can not be continuously supplied to water. And the cost is greatly increased.

In addition, in the case of an inland aquaculture farm in biofloat system, after a lapse of a certain period of time, feedstuffs contained in aquaculture water and sediments such as excrements of fishes, etc., need to be removed from the sediments of colorless and odorless substances decomposed by microorganisms. However, in order to remove the sediments from the farm, it is necessary to remove all the water inside the farm or to remove at least half of the water from the aquarium, and then remove sediment that has settled on the floor with a shovel or forklain. There is an inconvenience. Especially, it is necessary to form the water flow through the air lift device in the bioflag type inland farm, but it is impossible to form the water flow by the air lift device when the water level drops below a certain level.

Korean Patent Application No. 10-2011-0090665 (Published on Aug. 10, 2011) Korean Registered Patent No. 10-1438678 (Registered on April 1, 2014)

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an air lift apparatus improved in structure so that water flow can be normally formed even during the exchange of the aquaculture water.

The technical object of the present invention is not limited to the above-mentioned technical objects and other technical objects which are not mentioned can be clearly understood by those skilled in the art from the following description will be.

The dual air lift apparatus according to the present embodiment includes a base frame installed on a bottom surface of a farm site; A first air lift device disposed above the base frame; And a second air lift device disposed above the base frame and having a height lower than that of the first air lift device, wherein one of the first and second air lift devices exposed to the water surface is selectively operated .

The first air lift apparatus includes a first body having a space portion therein; A first air supplier installed on a bottom surface of the first body; A first inlet formed through one side wall of the first body; A first weight disposed on the lower side of the first air supply for canceling buoyancy of the first body; And a first injection path integrally formed with the first body and extending in a direction parallel to the water surface.

The first injection path may further include a first injection port at an inlet end, and the first injection port may be formed in a rectangular shape having a larger width than a height.

The first weight is formed to have an area corresponding to the bottom surface of the first body, and may be formed of a cement material.

The first inlet may be formed at a position corresponding to the first air supply.

Wherein the second air lift device comprises: a second body having a space portion therein; A second air supply unit installed on a bottom surface of the second body; A second inlet formed through one side wall of the second body; A second weight disposed on the lower side of the second air supply for canceling buoyancy of the second body; And a second injection passage formed integrally with the second body and extending in a direction parallel to the water surface.

The second injection path may further include a second injection port at an inlet end, and the second injection port may be formed in a rectangular shape having a width larger than a height.

The second weight is formed to have an area corresponding to the bottom surface of the second body, and may be formed of a cement material.

The second inlet may be formed at a position corresponding to the second air supply.

The first and second ejection openings may have the same cross-sectional area.

The first and second ejection openings may be disposed at the same horizontal position.

And at least one leg unit installed on the bottom surface of the base frame and adjusting the height of the base frame relative to the bottom surface of the farm.

According to the present embodiment as described above, since the air lift apparatus can operate at at least two different heights even if the water level of the farm is lowered to a certain level during the exchange of the aquaculture water, During the course of the process, you can fish normally.

Further, since the air lift apparatuses having different heights are provided in one base frame, it is convenient to manage the piping connection and arrangement positions of the air supply apparatus at a time.

In addition, when a leg unit for height adjustment is provided below the base frame, it is possible to easily level the floor even if the floor condition of the farm is not horizontal.

1 is a schematic perspective view of a dual air lift apparatus according to a first embodiment,
Fig. 2 is an operational state at the first water level of the dual air lift apparatus of Fig. 1,
Fig. 3 is an operational state at a second water level of the dual air lift apparatus of Fig. 1,
4 is a schematic perspective view of a dual air lift apparatus according to a second embodiment,
Fig. 5 is an operational state diagram of the dual air lift apparatus of Fig. 4 at the first water level,
FIG. 6 is an operational state diagram of the dual air lift apparatus of FIG. 4 at a second water level.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The sizes and shapes of the components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms defined in consideration of the configuration and operation of the present invention may be changed according to the intention or custom of the user, the operator. The definitions of these terms should be interpreted based on the contents of the present specification and meanings and concepts in accordance with the technical idea of the present invention. For reference, the farm according to this embodiment means an inland farm using Biofloc.

Fig. 1 is a schematic perspective view of the dual air lift apparatus according to the first embodiment, Fig. 2 is an operational state diagram at the first water level of the dual air lift apparatus of Fig. 1, Fig. 3 is a sectional view of the dual air lift apparatus of Fig. Fig. 4 is a schematic perspective view of the dual air lift apparatus according to the second embodiment, Fig. 5 is an operating state diagram at the first water level of the dual air lift apparatus of Fig. 4, and Fig. 4 is an operational state diagram at the second water level of the dual air lift apparatus of Fig.

The dual air lift apparatus according to the first embodiment may include a base frame 10, a first air lift apparatus 100, and a second air lift apparatus 200, as shown in FIG.

The base frame 10 may be installed on the bottom surface 1 of the farm, as shown in the figure, and may be provided in a metal plate shape. The base frame 10 forms a flat bottom surface so that the first and second air lift apparatuses 100 and 200 can be stably supported on the bottom surface of the farm.

The base frame 10 may have a width corresponding to that of the first and second air lift apparatuses 100 and 200 as shown in FIG. 1, and the first and second air lift apparatuses 100 ) 200 can be installed at a time. However, the present invention is not limited thereto, and the width of the base frame 10 may be somewhat wide, and the first and second air lift apparatuses 100 and 200 may be lifted at the same time by using a crane ).

The first air lift apparatus 100 may be disposed above the base frame 10. According to the present embodiment, the first air lift apparatus 100 includes a first body 110, a first air supplier 101, a first inlet 111, a first weight 120, 130).

The first body 110 may be formed as an enclosure having an internal space, and may be formed in a direction substantially perpendicular to the bottom surface. The first body 110 may be formed to be perpendicular to the bottom surface 1 of the farm or may be inclined at a predetermined angle with respect to a virtual extension line perpendicular to the bottom surface 1 as shown in the figure.

The first air supply unit 101 may be disposed on the bottom surface of the first body 110. A plurality of first air supply units 101 may be arranged in parallel. In addition, the first air supplier 101 may be provided with an ordinary air stone or the like, and may be supplied with air through at least one air tube.

The first inlet 111 may be formed on one side wall of the first body 110. According to the present embodiment, the first inlet 111 may be disposed at a position adjacent to the first air supplier 101. For example, as shown in Figs. 1 to 3, air may be formed on the side wall opposite to the spray direction of the aquaculture water containing air.

The first weight 120 is installed on the bottom surface of the first body 110 and the first weight 110 is disposed above the first weight 120 as shown in FIG. . According to the present embodiment, the first weight 120 may be formed of cement or the like. Since the cement can easily be formed in various sizes and shapes through curing, it can be manufactured according to the shape of the bottom surface of the first body 110. The first weight 120 may cancel the buoyancy of the first body 110 so that the first air lift apparatus 100 may be kept sinking on the bottom surface of the aquarium. However, the present invention is not limited thereto, and the first weight 120 may be any material that has corrosion resistance and can add weight, such as stone and metal.

The first injection path 130 may be integrally formed with the first body 110 and extend in a direction parallel to the water surface. In addition, the first injection path 130 may further include a first injection port 131 at an inlet end. The first jetting port (131) can jet the aquaculture water flowing through the first inlet (111) into the aquarium with the air supplied through the first air supplier (101). Through this injection process, it is possible to form a water tank for a biofloat. Meanwhile, the first jetting port 131 may be formed in a rectangular shape having a larger width than the height. However, the present invention is not limited thereto, and it may be configured in various shapes such as a circular shape or a polygonal shape.

In addition, the first jet passage 130 may have a first height h1 with respect to the bottom surface 1 of the aquarium. According to the present embodiment, the first height h1 may correspond to the normal cultured water level of the bioflag farm.

The second air lift apparatus 200 may be installed in the base frame 10 together with the first air lift apparatus 100, as shown in FIGS. According to the present embodiment, the size of the second air lift device 200 can be smaller than that of the first air lift device 100. [ Further, the second air lift apparatus 200 may have a second height h2. At this time, the second height h2 may be lower than the first height h1 in order to form a flow of water in the aquaculture tank during the exchange of the aquaculture water in the aquaculture tank. According to the present embodiment, the second height h2 may be less than 50% of the entire depth of the aquarium.

The second air lift apparatus 200 may be disposed above the base frame 10. According to this embodiment, the second air lift apparatus 200 includes a second body 210, a second air supply unit 201, a second inlet 211, a second weight 220, 230).

The second body 210 may be formed as an enclosure having an internal space, and may be formed in a direction substantially perpendicular to the bottom surface. The second body 210 may be formed perpendicular to the bottom surface 1 of the farm or may be inclined at a predetermined angle with respect to a virtual extension line perpendicular to the bottom surface 1 as shown in FIG.

The second air supply unit 201 may be disposed on the bottom surface of the second body 210. A plurality of the second air feeders 201 may be arranged in parallel. In addition, the second air supply unit 201 may be provided with an ordinary air stone or the like, and may receive air through at least one air tube.

The second inlet 211 may be formed on one side wall of the second body 210. According to the present embodiment, the second inlet 211 may be disposed at a position close to the second air supply unit 201. For example, as shown in Figs. 1 to 3, air may be formed on the side wall opposite to the spray direction of the aquaculture water containing air.

The second weight 220 is installed on the bottom surface of the second body 210. The second weight 220 is disposed on the bottom surface of the second body 210, . According to this embodiment, the second weight 220 may be formed of cement or the like. Since the cement can easily be formed in various sizes and shapes through curing, it can be manufactured according to the shape of the bottom surface of the second body 210. The second weight 220 may cancel the buoyancy of the second body 210 so that the second air lift apparatus 200 may be kept sinking on the bottom surface of the aquarium.

The second injection path 230 may be integrally formed with the second body 210 and extend in a direction parallel to the water surface. The second injection path 230 may further include a second injection port 231 at an inlet end thereof. The second jetting port 231 can jet the aquaculture water flowing through the second inlet 211 into the aquarium with the air supplied through the second air supplier 201. Through this injection process, it is possible to form a water tank for a biofloat. On the other hand, the second jetting ports 231 may be formed in a rectangular shape having a larger width than the height. However, the present invention is not limited thereto, and it may be configured in various shapes such as a circular shape or a polygonal shape.

In the dual air lift apparatus according to this embodiment configured as described above, the apparatus exposed to the water surface of the first and second air lift apparatuses 100 and 200 may be selectively operated. For example, when the water level of the aquarium corresponds to the first height h1 as shown in FIG. 2, only the first air lift apparatus 100 is operated and the second air lift apparatus 200 may not operate. 3, the first air lift apparatus 100 stops operating and the second air lift apparatus 200 stops the operation of the first air lift apparatus 100 when the water level becomes lower due to the water level of the aquarium, So that the water flow can be formed using the air lift.

The operation of the first air lift apparatus 100 may be stopped when the water level is lower than the first height h1 and the second air lift apparatus 200 may be operated when the first air lift apparatus 100 is operated It is possible to start operation immediately. However, it is not limited thereto, and the first and second air lift apparatuses 100 and 200 may be operated simultaneously, instead of selectively operating.

Meanwhile, the first and second injection openings 131 and 231 may have the same cross-sectional area and may be disposed at the same horizontal position. This is to make the water flow uniform in the same direction as possible.

According to the second embodiment, as shown in Figs. 4 to 6, the leg unit 300 may further be included in the configuration of the first embodiment described above.

The leg unit 300 is installed on the bottom surface of the base frame 10 to adjust the height of the base frame 10 with respect to the bottom surface 1 of the farm. The leg unit 300 may be configured in various ways, for example, a height adjusting device using a thread. According to the present embodiment, at least four leg units 300 may be disposed on the bottom surface of the base frame 10. [ The configuration of the leg unit 300 can be variously configured, and any known configuration capable of adjusting the height can be used. Through such a configuration of the leg unit 300, it is possible to arrange the dual air lift apparatus according to the present embodiment in a horizontal direction on the bottom surface of the farm site where the floor surface is not flat or inclined.

According to the present embodiment as described above, even if the water level of the farm is lowered to a certain level during the process of replacing the aquaculture water in the aquaculture facility, the first and second air lift devices 100 ) 200 can normally perform fish culture even during the aquaculture water replacement process.

In addition, since the first and second air lift apparatuses 100 and 200 having different heights are provided in one base frame 10, it is possible to manage the piping connection and arrangement positions of the air supply apparatus at a time It is convenient.

In addition, when the leg unit 300 for height adjustment is provided below the base frame 10, even if the floor condition of the farm is not horizontal, it is possible to adjust the level easily.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Accordingly, the true scope of the present invention should be determined by the following claims.

One; The farm floor 10; Base frame
100; A first air lift apparatus 101; The first air supply
110; A first body 120; 1st weight
130; A first injection path 131; First jet opening
200; A second air lift device 201; The second air supply
210; A second body 220; 2nd weight
230; A second injection passage 231; The second nozzle
300; Leg unit

Claims (12)

A base frame installed on the floor of the farm;
A first air lift device disposed at the base frame and having a first height relative to the base frame; And
And a second air lift device disposed on the base frame together with the first air lift device and having a second height lower than the first height with respect to the base frame,
Wherein the first air lift device is provided with a first air supply device, the second air lift device is provided with a second air supply device,
Wherein at least one of the first and second air lift devices forms a water flow when the water level of the farm corresponds to the first height and when the water level corresponds to the second height, Dual air lift device to form.
The air lift apparatus according to claim 1,
A first body having a space portion therein and in which the first air supply unit is disposed;
A first inlet formed through one side wall of the first body;
A first weight disposed on the lower side of the first air supply for canceling buoyancy of the first body; And
And a first injection channel integrally formed with the first body and extending in a direction parallel to the water surface.
3. The fuel injection valve according to claim 2,
The dual air lift apparatus of claim 1, further comprising a first jet opening at an inlet end, wherein the first jet opening is formed in a rectangular shape having a width larger than a height.
[3] The apparatus of claim 2,
Wherein the second air lift unit is formed to have an area corresponding to a bottom surface of the first body and is formed of a cement material.
3. The method of claim 2,
Wherein the first inlet is formed at a position corresponding to the first air supply.
2. The air lift apparatus according to claim 1,
A second body having a space portion therein and including the second air supply;
A second inlet formed through one side wall of the second body;
A second weight disposed on the lower side of the second air supply for canceling buoyancy of the second body; And
And a second injection path integrally formed with the second body and extending in a direction parallel to the water surface.
7. The fuel injection valve according to claim 6,
The dual air lift apparatus of claim 1, further comprising a second jetting port at an inlet end, wherein the second jetting port is formed in a rectangular shape having a width larger than a height.
7. The apparatus of claim 6,
Wherein the second air lift unit is formed to have an area corresponding to a bottom surface of the second body, and is formed of a cement material.
The method according to claim 6,
Wherein the second inlet is formed in a position corresponding to the second air supply.
The method according to claim 6,
Wherein the first and second ejection openings have the same cross-sectional area.
The method according to claim 6,
Wherein the first and second ejection openings are disposed at the same horizontal position.
The method according to claim 1,
And at least one leg unit installed on a bottom surface of the base frame to adjust the height of the base frame relative to the bottom surface of the farm.

Images