KR20190044713A - Apparatus for race-way type aquaculture water tank - Google Patents

Abstract

A raceway-type aquaculture water tank apparatus comprises: a raceway-type water tank; a plurality of air stones, which are alternately arranged in the direction of a raceway on the bottom of the raceway-type water tank, and which are composed of crisscross aeration tubes to comprise low pressure stones for supplying air and high pressure stones for supplying oxygen; and an air lift installed between the plurality of air stones to control a flow rate of breeding water circulating along the direction of the raceway. An embodiment of the present invention is to provide the raceway-type aquaculture water tank apparatus capable of controlling the flow rate of breeding water to efficiently circulate breeding water.

Description

[0001] APPARATUS FOR RACE-WAY TYPE AQUACULTURE WATER TANK [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a raceway type aquaculture apparatus, and more particularly, to a raceway type aquarium apparatus that can control the flow rate of the aquarium water to efficiently circulate the water.

In general, there are aquaculture types, water-based aquaculture, cage aquaculture, or circulation-based aquaculture, and the structure, shape, and size of aquaculture facilities vary depending on the type, purpose and method of fish being cultivated. Circulating aquaculture is a large-scale method of cultivating ornamental fish in an aquarium or a home. It aims to increase the amount of dissolved oxygen (Dissolved Oxygen) while cultivating a large number of fish by eliminating harmful substances in the water.

Korean Patent No. 10-1742978 relates to a crustacean culture system, which comprises a water tank which is opened on its top surface and which is provided as a single layer or a plurality of layers, a multi-layer frame provided inside the water tank, An air feeder installed to supply air to the seawater contained in the water tank, and a sediment remover installed to remove sediment accumulated on the bottom of the water tank.

Korean Patent Laid-Open No. 10-2017-0058652 relates to a fish tank for fish culture for removing parasites and germs, and a cleaner is installed on the upper side of the tank to remove the residue formed in the fish culture process from the fish. And discloses an easy technique.

Korean Patent No. 10-1742978 (May 27, 2017) Korean Patent Publication No. 10-2017-0058652 (May 27, 2017)

An embodiment of the present invention is to provide a raceway-style aquarium apparatus capable of controlling the flow rate of the breeding water to efficiently circulate the breeding water.

One embodiment of the present invention is to provide a raceway-style aquarium apparatus capable of controlling the flow rate of the breeding water by adjusting the angle of the air lift.

An embodiment of the present invention is to provide a raceway-style aquarium apparatus capable of supplying sufficient oxygen and air to the breeding water contained in a raceway-type water tank through a plurality of air stones and a plurality of breasts.

An embodiment of the present invention is to provide a raceway-style aquarium apparatus capable of spraying inflow water supplied at a constant pressure along a direction of a raceway.

Among the embodiments, the raceway-style aquarium apparatus comprises a raceway-type water tank, a low-pressure stone provided alternately in accordance with the direction of the raceway on the bottom of the raceway-type water tank, And an air lift installed between the plurality of air stones to control the flow rate of the breeding water circulating along the direction of the raceway.

In one embodiment, the airlift may include a lifting plate fixed to the bottom of the raceway-shaped water tank at one end and a plurality of winglets disposed along the direction of the raceway at a lower end of the lifting plate.

In one embodiment, the airlift can control the amount of bubbles injected by the plurality of bulges in accordance with the following equation:

[Mathematical Expression]

_{P air_blower = (V tank / V} tank _average) * A

(Wherein, P _{air_blower} the pressure of the air blower control, V _tank has a flow rate of the raceway-shaped tank _{(V tank ≠ 0), V} tank _average is the raceway-type water tank for supplying air to the plurality of wide authority the average flow velocity (V _{tank _average} ≠ 0) and a is the primary supply air pressure of the air blower control that is set by the user)

In one embodiment, the raceway-style aquarium apparatus may further include a flow velocity inducing maintenance pipe disposed along the lower edge of the raceway-shaped water tank and injecting the breeding water at a constant pressure along the direction of the raceway.

In one embodiment, the flow rate-triggered maintenance piping includes a first center tube connected to the inlet pipe, a second center tube disposed below the first center tube and alternately in the direction of the raceway, And first and second pipe branch points connecting both ends of the first and second center tubes.

In one embodiment, the flow rate-induced retention pipe is formed along an upper edge of the raceway-like water tank, and is connected to the first and second pipe bifurcations and extends in the direction of the raceway at a lower portion of the raceway- And may further include first and second raceway sub-pipes for spraying the breeding water.

In one embodiment, the raceway-style aquarium apparatus may further include a water tank separator provided between the first and second central tubes and a drain pipe disposed at one side of the water separator.

In one embodiment, the low pressure stone is connected to an air blower, and the high pressure stone can be connected to the high pressure injector.

The disclosed technique may have the following effects. It should be understood, however, that the scope of the disclosed technology is not to be construed as limited thereby, as it does not imply that a particular embodiment should include all of the following effects or merely include the following effects.

The raceway type aquarium apparatus according to an embodiment of the present invention can control the flow rate of the breeding water to circulate the breeding water efficiently.

In the raceway type aquarium apparatus according to an embodiment of the present invention, the flow rate of the breeding water can be controlled by adjusting the angle of the air lift.

The raceway-type aquaculture apparatus according to an embodiment of the present invention can supply sufficient oxygen and air to the breeding water contained in the raceway-type water tank through the plurality of air stones and the plurality of breasts.

The raceway type aquarium apparatus according to an embodiment of the present invention can inject inflow water supplied at a constant pressure along the direction of the raceway.

1 is a view for explaining a raceway-style aquarium system according to an embodiment of the present invention.
Fig. 2 is a view for explaining the raceway-style aquarium apparatus shown in Fig. 1. Fig.

The description of the present invention is merely an example for structural or functional explanation, and the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, the embodiments are to be construed as being variously embodied and having various forms, so that the scope of the present invention should be understood to include equivalents capable of realizing technical ideas. Also, the purpose or effect of the present invention should not be construed as limiting the scope of the present invention, since it does not mean that a specific embodiment should include all or only such effects.

Meanwhile, the meaning of the terms described in the present application should be understood as follows.

The terms " first ", " second ", and the like are intended to distinguish one element from another, and the scope of the right should not be limited by these terms. For example, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

It is to be understood that when an element is referred to as being "connected" to another element, it may be directly connected to the other element, but there may be other elements in between. On the other hand, when an element is referred to as being "directly connected" to another element, it should be understood that there are no other elements in between. On the other hand, other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

It is to be understood that the singular " include " or " have " are to be construed as including the stated feature, number, step, operation, It is to be understood that the combination is intended to specify that it does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

In each step, the identification code (e.g., a, b, c, etc.) is used for convenience of explanation, the identification code does not describe the order of each step, Unless otherwise stated, it may occur differently from the stated order. That is, each step may occur in the same order as described, may be performed substantially concurrently, or may be performed in reverse order.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used predefined terms should be interpreted to be consistent with the meanings in the context of the related art and can not be interpreted as having ideal or overly formal meaning unless explicitly defined in the present application.

1 is a view for explaining a raceway-style aquarium system according to an embodiment of the present invention.

Referring to FIG. 1, a raceway type aquarium system 10 includes a circulation filtration type collecting apparatus 100 and a raceway type aquarium apparatus 200.

The circulation filtration collecting device 100 may be separately installed outside the raceway type aquarium tank 200 and connected to the raceway type aquarium tank 200. The circulation filtration type collecting apparatus 100 can catch the breeding water from the raceway type aquarium apparatus 200 and circulate and collect the collected breeding water so that the breeding water can be reused.

The circulation filtration type collecting device 100 can be installed outside the raceway-style aquarium tank 200, thereby reducing the area of filtration of the tank water compared to the conventional circulating-filtration type aquarium tank, The structure of the system 10 can be simplified and the efficiency of the space can be increased.

The circulation filtration type collecting apparatus 100 is installed lower than the raceway type aquarium tank 200 so that it is not necessary to control the movement of the oil in the tank through the separate motor, It is possible to easily collect the water from the at least one raceway-style aquarium apparatus 200 by using the height difference, thereby increasing the energy efficiency.

Since the collecting apparatus 100 controls the draw-off of the number of the breeding water through the discharge ship piping 260 according to the flow rate of the raceway type aquarium apparatus 200, 200), and it is possible to decompose the impurities in the breeding water more effectively.

In one embodiment, the circulating-filtration collector device 100 may be utilized in a general fish culture. More specifically, the circulating-filtration collector 100 may be used in all types of fish including, but not limited to, fish or crustaceans, which may be used in shrimp culture.

The raceway type aquarium tank 200 is capable of draining the water through the drainage pipeline 260 provided on the bottom of the raceway water tank 210 and the circulation type filter collector 100 is capable of draining Water can be collected and circulated and filtered, and then supplied to the raceway-shaped water tank 210 as inflow water through the flow rate induction maintenance pipe 240. A more detailed description related to the raceway type aquarium tank 200 will be described with reference to Fig.

Fig. 2 is a view for explaining the raceway-style aquarium apparatus shown in Fig. 1. Fig.

2, the raceway-style aquarium apparatus 200 includes a raceway-shaped water tank 210, a plurality of air stones 220, an air lift 230, a flow velocity induction maintenance pipe 240, 250 and a drain ship piping 260.

The raceway-style aquarium tank 200 can drain the water from the drainage piping 260 provided at one side of the raceway-type water tank 210, and the drainage water is drained from the circulation- And then may be supplied as inflow water to the raceway-shaped water tank 210 through the inflow pipe 242 of the flow velocity induction maintenance pipe 240. [ Herein, the inflow water may include, but is not necessarily limited to, the breeding water circulated and filtered through the circulation-type collecting device 100.

The raceway-type water tank 210 can be designed and manufactured in consideration of kinds and characteristics of fishes, kinds of feeds, and the like. For example, a raceway type water tank designer should know the type and characteristics of fish, including the ecological characteristics of the fish such as fusing and migration, the size of the fish, the density of the fish culture, Can be considered. The raceway-type water tank designer can consider the unit area of the raceway-type water tank 210 according to the characteristics of the fish. For example, in the case of culturing fixative fish, the area of the raceway-shaped water tank 210 may be enlarged and the depth may be designed. In the case of culturing the floating fish, the area of the raceway- It can be designed to be narrow and deep.

The raceway-type water tank 210 can be designed with a suitable material according to the ecological characteristics of the fish. In addition, the raceway-type water tank 210 can be selected in consideration of mechanical properties such as elasticity, plasticity, strength, rigidity, toughness, brittleness and ductility, and chemical properties. In one embodiment, the raceway-shaped water bath 210 can be designed using concrete or a sandwich panel, and does not limit the material for the water tank design, and the material can be changed by the designer have.

In one embodiment, the raceway-type water tank 210 can be designed as a raceway type for circulation of floating fish such as shrimp, salmon and the like. Here, a raceway generally refers to a course for racing, and a water tank designed as a raceway type is a water tank designed to discharge a sludge effectively without a long length of sludge sinking in the water tank. Therefore, the water tank designed as a raceway type can circulate the water in the water tank to maintain the mobility of the floating fish and prevent the sludge from sinking on the bottom of the water tank.

In one embodiment, both ends of the raceway-shaped water tub 210 can be made to have slopes of a certain height for smooth shipment of fish. The specific height may be determined by the user, for example, the slope may be made of sand or gravel.

The plurality of air stones 220 can be installed alternately in the direction of the raceway on the bottom of the raceway-shaped water tank 210 and include the low pressure stone 222 and the high pressure stone 224. Here, the raceway direction may include a specific direction along the edge of the raceway-shaped water tub 210.

The low pressure stone 222 may be composed of a plurality of low pressure stones 222-1, 222-2, 222-3 ... 222-n and may be connected to an air blower for supplying air have. Here, the air blower may be installed outside the raceway-shaped water tank 210, and may include a device capable of generating air to supply air to the plurality of low pressure stones 222 . Further, each of the plurality of low-pressure stones 222-1, 222-2, 222-3 ... 222-n may be constituted by a cross-shaped bobbing device.

In one embodiment, the plurality of low-pressure stones 222 can receive air from the air blower and inject air into the raceway-shaped water tank 210, that is, So that air can be injected in an upward direction.

The high pressure stone 224 may be connected to a high pressure injector (or including a high pressure oxygen injector) to supply oxygen. More specifically, the high pressure stone 224 may be composed of a plurality of high pressure stones 224-1, 224-2, 224-3 ... 224-n, and a plurality of high pressure stones 224-1, 224-2, 224-3 ... 224-n may be configured in a straight line.

In one embodiment, the shape of each of the low-pressure stone 222 and the high-pressure stone 224 is not necessarily limited to a cross shape or a straight shape, and may be variously changed by a designer. The raceway type aquarium tank 200 can supply air and oxygen sufficient to breed fish to the raceway water tank 210 through the plurality of air stones 220.

The air lift 230 may be installed between the plurality of air stones 220. In one embodiment, the air lift 230 may be installed between the low pressure stone 222 and the high pressure stone 224, or between the low pressure stone and the other low pressure stone, .

The air lift 230 includes a lifting plate 232 and a plurality of springs 234. The lifting plate 232 can be fixed to the bottom of the raceway-shaped water tank 210 at one end of the air lift 230 and can be angularly adjusted about an axis fixed to the bottom of the raceway-

The plurality of bending units 234 may be composed of at least one bending unit 234-1, 234-2, 234-3 ... 234-n, As shown in FIG. In one embodiment, the plurality of breechbodies 234 may be arranged at regular intervals with a straight bubble generator, and an air blower installed outside the raceway- Lt; / RTI >

Each of the plurality of blowing units 234 can generate bubbles (i.e., air bubbles) by the air supplied from the air blower, and can blow the generated bubbles upward. Here, the upper direction may correspond to the upper direction of the raceway water tank 210.

The air lift 230 may be provided in an oblique direction at the bottom of the raceway-shaped water tank 210 to provide directionality to the bubbles through the angle-adjustable lifting plate 232. More specifically, the air lift 230 is capable of laterally moving a plurality of bubbles which are injected in the upward direction by the plurality of breechbodies 234. The air supplied from the air blower strikes the lower surface of the lifting plate 232 in the process of ascending to the upper direction and flows in the lateral direction while changing the direction. Therefore, in the lace-worship style water tank 200, the bubbles rise from the bottom of the lace-wear-type water tank 210, and the raised bubbles form a flow in the lateral direction, And the organic matter and the sludge are not stagnated in the raceway-type water tank 210 due to circulation of the breeding water.

The air lift 230 is installed between the plurality of air stones 220 to control the flow rate of the breeding water. More specifically, the air lift 230 can control the flow rate of the breeding water circulating along the direction of the raceway by controlling the amount of bubbles injected by the plurality of bulges 234. The air lift 230 can control the amount of bubbles injected by the plurality of bulges 234 according to the following equation.

[Mathematical Expression]

_{P air_blower = (V tank / V} tank _average) * A

(Wherein, P _{air_blower} is the average flow rate of the air blower air pressure, V _tank is the flow rate of the raceway-shaped tank _{(V tank ≠ 0), V} tank _average the raceway-shaped tank for supplying air to a plurality of width engine (V _{tank _average} ≠ 0) and a is the primary supply air pressure of the air blower control that is set by the user)

In one embodiment, the air lift 230 may control the pressure of the air blower supplying air to the plurality of blowers 234 to control the amount of bubbles injected by the plurality of blowers 234 have. For example, when the flow rate of the current raceway-shaped water tank 210 is higher than the average flow velocity of the raceway-shaped water tank 210 measured during a specific period, And the amount of the ejected bubbles can make the angle of the lifting plate 232 larger than the angle of the current lifting plate 232. [ At this time, the air lift 230 is controlled to a maximum pressure value at which the angle of the lifting plate 232 does not exceed 90 degrees.

 In another example, the air lift 230 is sprayed from the plurality of breeches 234 when the flow rate of the current raceway-like water tank 210 is slower than the average flow rate of the raceway- The amount of bubbles can be reduced and the amount of bubbles injected can make the angle of the lifting plate 232 smaller than the angle of the current lifting plate 232. [

That is, the raceway type aquarium tank 200 controls the amount of bubbles injected by the plurality of breechbodies 234 based on the flow rate of the raising water in the raceway- 210 can be controlled. In addition, the raceway type aquarium tank 200 can adjust the angle of the lifting plate 232 by controlling the amount of bubbles injected by the plurality of breeches 234 in accordance with the flow rate of the breeding water. The raceway type aquarium tank 200 can circulate the water contained in the raceway-type water tank 210 efficiently by controlling the flow rate of the water.

The air lift 230 can be adjusted in angle of the lifting plate 232 based on the flow rate of the breeding water (or the speed of water) by the user, the amount of the breeding water (or the amount of water in the water tank) For example, the user can increase the angle of the lifting plate 232 to be greater than the angle of the current lifting plate 232 as the flow rate of the raceway-type water tank 210 is higher, thereby slowing the flow rate. For example, if the flow rate of the raceway-type water tank 210 is low, the user can make the angle of the lifting plate 232 smaller than the angle of the current lifting plate 232 to increase the flow velocity.

Therefore, the raceway-style aquarium tank 200 moves the sludge including fish excrement, feed and the like on the bottom of the raceway-shaped water tank 210 to the upper part through the air lift 230, The flow rate of the raceway-type water tub 210 can be controlled so as not to sink.

The flow rate inducing maintenance pipe 240 can be disposed along the lower edge of the raceway water tank 210 and includes an inlet pipe 242, a first center pipe 244-2, a second center pipe 244-4, A first piping branch point 246-2, a second piping branch point 246-4, a first raceway sub-piping 248-2, and a second raceway sub-piping 248-4.

The flow rate inducing maintenance pipe 240 may be disposed along the edge of the raceway-shaped water tank 210 and may be disposed along the lower portion of the water separating membrane 250. At this time, the piping disposed along the edge of the raceway-shaped water tank 210 and the piping disposed along the lower portion of the water separating membrane 250 can be connected to each other. The flow rate inducing maintenance pipe 240 may be connected without being disconnected, and may inject the inflow water (that is, the inflow water supplied through the circulation filtration type collecting device) at the same injection pressure at each of the plurality of injection ports.

The raceway-style aquarium apparatus 200 may be connected to the circulation-filtration-type collecting apparatus 100 through the inflow pipe 242 of the flow- The inflow water (that is, the breeding water filtered through the circulation filtration type collecting device) can be supplied from the apparatus 100.

In one embodiment, the inflow pipe 242 may be installed at a level higher than the level of the raceway-shaped water tank 210, and the inflow water introduced through the inflow pipe 242 may be located at a position lower than the inflow pipe 242 (E.g., the first and second raceway sub-tubes and the plurality of injection holes formed at both sides of the second center tube axis). In one embodiment, the flow rate-generating maintenance pipe 240 can circulate the water in the raceway-type water tank 210 by injecting the inflow water supplied through the circulation filtration type collecting device 100.

The first central pipe 244-2 may be connected to the inflow pipe 242. [ In one embodiment, the first central tube 244-2 can allow influent water flowing through the inlet pipe 242 to flow evenly throughout the flow-rate-maintained pipe 240. The second center pipe 244-4 May be disposed below the first central tube 244-2 and alternatively may alternatively spray inflow water in the direction of the raceway. In one embodiment, the second central tube 244-4 may be a plurality of The inflow water can be injected through the injection ports.

The first and second piping bifurcations 246 may be connected to both ends of the first center tube 244-2 and the second center tube 244-4. The first pipe branch point 246-2 may correspond to a branch point closer to the inflow pipe 242 than the second pipe branch point 246-4 and the second pipe branch point 246-4 may correspond to a branch point located closer to the inflow pipe 242 than the second pipe branch point 246-4, It may correspond to a branch point far from the inflow pipe 242 than the branch point 246-2.

The first and second raceway sub-tubes 248 may be formed along the upper edge of the raceway-like water tub 210 and each of the first and second raceway sub- 2 < / RTI > pipe bifurcations 246 as shown in FIG. More specifically, the first and second raceway sub-pipes 248 can inject inflow water in the lower part of the raceway-shaped water tub 210 in accordance with the direction of the raceway.

In one embodiment, each of the first and second raceway sub-tubes 248 may inject influent water in different directions. For example, the first raceway sub-pipe 248-2 can be injected in a direction to receive influent water from the circulation-type collecting device 100, and the second raceway sub- (In other words, the inflow pipe direction) different from the direction in which the inflow water is injected from the one raceway sub-pipe 248-4.

 The flow rate inducing maintenance pipe 240 can inject the inflow water at the same water pressure through the plurality of injection ports and the first and second raceway sub-pipes 248 in the second central pipe 244-4. In one embodiment, the flow-rate-maintained pipeline 240 may inject inflow water at a constant pressure (i.e., water pressure) along the direction of the raceway, wherein the inflow water is connected to the circulation- As the breeding water supplied through the inflow pipe 242, the breeding water filtered through the circulation-type collecting device 100.

The flow rate inducing maintenance pipe 240 is connected to the first and second central pipes 244 and 242 through the first and second pipe branch points 246 and the pipe formed along the upper edge of the raceway- The first and second raceway sub-pipes are connected to the first and second piping bifurcations), so that the inflow water can be injected at the same water pressure.

The water tank separator 250 may be installed at the center of the raceway-type water tank 210. More specifically, the water separator 250 may be installed between the first and second central tubes 244 of the flow rate-inducing maintenance pipe 240. For example, the water separator 250 may be provided to regulate the flow rate of the breeding water in the raceway-type water tank 210.

The raceway type aquarium tank 200 is provided with a water separator 250 in a raceway water tank 210 and controlling the flow rate through an air lift 230 to control the feeding water to circulate in the direction of the raceway can do. In this process, the raceway type aquarium tank 200 floats the organic matter and the sludge in the lower layer of raising water of the raceway-shaped water tank 210 through the air lift 230, So that it does not sink to the bottom of the container.

The drainage piping 260 may be installed on one side of the water separating membrane 250. In one embodiment, the drain ship piping 260 may be connected to the circulation-type collecting device 100 to drain the breeding water or ship the fish.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as set forth in the following claims And changes may be made without departing from the spirit and scope of the invention.

10: Race Way type water tank system
100: Circulating-filtration type collecting device 200: Race-way type water tank device
210: Raceway type water tank 220: A plurality of air stones
222: Low pressure stone 224: High pressure stone
230: Air lift 240: Flow rate induced maintenance pipe
250: water tank separator 260: discharge piping

Claims (8)

A raceway type water tank;
A plurality of air stones alternately arranged on the bottom of the raceway water tank in accordance with the direction of the raceway and including a low pressure stone for supplying air and a high pressure stone for supplying oxygen constituted by a crisscross type engine; And
And an air lift installed between the plurality of air stones to control the flow rate of the breeding water circulating along the direction of the raceway.
The air-conditioning system according to claim 1, wherein the air-
A lifting plate fixed to the bottom of the raceway-type water tank at one end; And
And a plurality of breeches arranged at the lower end of the lifting plate along the direction of the raceway.
3. The air-conditioning system according to claim 2, wherein the air-
Wherein the amount of bubbles injected by the plurality of breechbodies is controlled according to the following equation.
[Mathematical Expression]
_{P air_blower = (V tank / V} tank _average) * A
(Wherein, P _{air_blower} the pressure of the air blower control, V _tank has a flow rate of the raceway-shaped tank _{(V tank ≠ 0), V} tank _average is the raceway-type water tank for supplying air to the plurality of wide authority the average flow velocity (V _{tank _average} ≠ 0) and a is the primary supply air pressure of the air blower control that is set by the user)
The method according to claim 1,
Further comprising a flow rate-inducing maintenance pipe disposed along a lower edge of the raceway-type water tank and injecting raised water at a constant pressure along the direction of the raceway.
5. The apparatus according to claim 4, wherein the flow rate-
A first central tube connected to the inlet pipe;
A second central tube disposed at a lower portion of the first central tube opposite to the first central tube and spraying the breeding water alternately along the direction of the raceway; And
And first and second pipe branching points connecting both ends of the first and second center pipes.
6. The apparatus according to claim 5, wherein the flow rate-
The first and second piping bifurcations being formed along the upper edge of the raceway-like water tank and being connected to the first and second piping bifurcations and spraying the breeding water along the direction of the raceway at a lower portion of the raceway- Further comprising raceway sub-pipes. ≪ RTI ID = 0.0 > 11. < / RTI >
6. The method of claim 5,
A water tank separator provided between the first and second central tubes; And
Further comprising a drain discharge piping installed at one side of the water separating membrane.
The method according to claim 1,
Wherein the low pressure stone is connected to the air blower, and the high pressure stone is connected to the high pressure injector.

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