High-density fish tank device

Abstract

This invention provides a high-density fish farming tank device, including a tank body; an inlet pipe is connected to the top of the tank body, a conical section is provided at the bottom of the tank body, an L-shaped pipe is connected to the bottom of the tank body, one end of the L-shaped pipe is connected to a drain pipe, a valve is installed on the drain pipe, and a circulation pipe is connected to the side wall of the L-shaped pipe. This invention, by setting baffles on the inlet pipe and the circulation pipe, can guide the water flow to form a clockwise directional flow. Combined with the conical section at the bottom of the tank body, it can efficiently collect fish feces and feed residue to the bottom of the tank body. At the same time, the first gap formed by the arc-shaped plate and the bottom wall of the tank body allows fish feces and feed to flow in, and because the gap is smaller than the volume of the farmed fish, it can prevent fish from entering, thus achieving effective separation of fish and pollutants, greatly improving the concentration and thoroughness of sewage discharge, reducing water pollution, and providing a cleaner living environment for fish.

Description

Technical Field

[0001] This utility model relates to a tank device, and more particularly to a high-density fish farming tank device, belonging to the technical field of aquaculture equipment. Background Technology

[0002] With the continued growth in global demand for aquatic products, traditional free-range farming methods, due to their limited water self-purification capacity, frequent disease outbreaks, and low resource utilization, are no longer able to meet the demands of large-scale aquaculture. High-density intensive aquaculture has become the mainstream direction in the industry.

[0003] Chinese patent publication (publication number: CN222236277U) discloses a high-density aquaculture fish tank, including a bottom drain pipe with a flange on one side and a bottom drain fish toilet fixedly installed on the top of the bottom drain pipe for discharging fish waste and fish. The device connects the bottom drain pipe to an existing valve via the flange, then activates a water pump connected to the bottom drain pipe to add water to the tank's outer shell and walls. The fish are then placed inside the tank. When it's necessary to remove waste and feed residue, the waste can be released through the pre-reserved outlet in the middle drain, or filtered through a bottom filter mesh. When harvesting the fish, the water level can be reduced to 50 cm, the filter mesh removed, and the fish will flow into the fish toilet and through the bottom drain pipe to a designated location. This structure allows for rapid harvesting of fish while also enhancing the tank's durability.

[0004] However, existing technologies do not have a structure to guide the directional flow of water, so fish feces and feed residue tend to disperse and settle inside the tank, making it difficult to discharge them. Long-term accumulation can lead to water pollution and affect the living environment of fish. Therefore, a high-density fish tank device is proposed. Summary of the Invention

[0005] In view of this, the present invention provides a high-density fish tank device to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0006] The technical solution of this utility model is implemented as follows: a high-density fish farming tank device includes a tank body; an inlet pipe is connected to the tank body, a conical part is provided at the bottom of the tank body, an L-shaped pipe is connected to the bottom of the tank body, one end of the L-shaped pipe is connected to a drain pipe, a valve is installed on the drain pipe, a circulation pipe is connected to the side wall of the L-shaped pipe, one end of the circulation pipe is connected to the tank body and is provided with a filter screen, the other end of the circulation pipe extends through the L-shaped pipe into the interior of the tank body and is fixedly connected to a fixing block, an arc-shaped circular plate is fixedly connected to one side of the fixing block, and an aeration device is installed on the inner bottom wall of the tank body.

[0007] More preferably, both the circulation pipe and the inlet pipe are equipped with baffles, which are used to change the angle and direction of the water flow to form a clockwise flow.

[0008] More preferably, a first gap is formed between the arc-shaped circular plate and the inner bottom wall of the barrel. The first gap is used for the inflow of fish feces and fish feed, and its gap is smaller than the volume of the farmed fish to prevent the fish from passing through.

[0009] In a further preferred embodiment, a second gap is formed between the circulation pipe and the L-shaped pipe. The second gap is used for fish feces and fish feed to fall into the sewage pipe, and for some water to flow back into the tank through the filter screen via the circulation pipe.

[0010] More preferably, the height of the circulation pipe extending into the barrel is higher than the inner bottom wall of the barrel.

[0011] More preferably, the filter screen has a detachable structure and a mesh size of 80-120, used to filter fish feces and feed residue in the water flowing back into the tank.

[0012] More preferably, the aeration device includes an aeration disc and an air supply pipe. The aeration disc is installed on the inner bottom wall of the tank. One end of the air supply pipe is connected to the aeration disc, and the other end extends to the outside of the tank for oxygenating the water inside the tank.

[0013] The present invention has the following advantages due to the adoption of the above technical solution:

[0014] I. This utility model, by setting baffles on the inlet pipe and circulation pipe, can guide the water flow to form a clockwise directional flow. Combined with the conical part at the bottom of the tank, it can efficiently collect fish feces and feed residue to the bottom of the tank. At the same time, the first gap formed by the arc-shaped circular plate and the bottom wall of the tank can both allow fish feces and feed to flow in, and prevent fish from entering because the gap is smaller than the volume of farmed fish. This achieves effective separation of fish and pollutants, greatly improves the concentration and thoroughness of sewage discharge, reduces water pollution, and provides a cleaner living environment for fish.

[0015] Second, this utility model utilizes the second gap formed by the circulation pipe and the L-shaped pipe to allow some of the water carrying pollutants to pass through the circulation pipe and then be filtered by a detachable filter screen before flowing back to the tank, thus realizing the recycling of water resources and saving water costs. The detachable filter screen is easy to clean and replace, and can flexibly adapt to different aquaculture needs. In addition, the aeration device on the bottom wall of the tank can continuously oxygenate the water, effectively increasing the dissolved oxygen content of the water, meeting the oxygen demand of high-density aquaculture, and promoting the healthy growth of fish.

[0016] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural diagram of the present invention.

[0019] Figure 2 This is a structural diagram of the arc-shaped circular plate and the circulation pipe in this utility model.

[0020] Figure 3 This is a cross-sectional view of the present invention.

[0021] in:

[0022] 10-Barrel body; 11-Inlet pipe; 12-L-shaped pipe; 13-Drain pipe; 14-Valve; 15-Conical part; 16-Baffle; 17-Aeration device; 20-Circulation pipe; 21-Filter screen; 22-Fixing block; 23-Arc-shaped plate; 24-First gap; 25-Second gap. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0024] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0025] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] like Figure 1-3 As shown, this utility model embodiment provides a high-density fish farming tank device, including a tank body 10;

[0029] In one embodiment, a water inlet pipe 11 is connected to the barrel 10, a tapered part 15 is provided at the bottom of the barrel 10, an L-shaped pipe 12 is connected to the bottom of the barrel 10, a sewage pipe 13 is connected to one end of the L-shaped pipe 12, a valve 14 is installed on the sewage pipe 13, a circulation pipe 20 is connected to the side wall of the L-shaped pipe 12, one end of the circulation pipe 20 is connected to the barrel 10 and a filter screen 21 is provided, the other end of the circulation pipe 20 extends through the L-shaped pipe 12 into the interior of the barrel 10 and is fixedly connected to a fixing block 22, an arc-shaped circular plate 23 is fixedly connected to one side of the fixing block 22, and an aeration device 17 is installed on the inner bottom wall of the barrel 10.

[0030] The tank 10 provides space for the main aquaculture unit; the inlet pipe 11 is used to introduce fresh water to ensure water renewal; the conical part 15 uses gravity to collect fish feces and feed residue at the bottom of the tank 10 for centralized treatment; the L-shaped pipe 12 connects the bottom of the tank 10 to the sewage pipe 13 and the circulation pipe 20, realizing the separation of sewage discharge and water circulation; the sewage pipe 13, together with the valve 14, can control the discharge of pollutants and avoid the accumulation of pollutants; the circulation pipe 20 realizes water circulation, reducing water waste; the filter screen 21 filters pollutants in the return water to ensure the cleanliness of the circulating water; the fixing block 22 fixes the arc-shaped circular plate 23, which prevents fish from entering the sewage discharge area and avoids fish being discharged with pollutants; the aeration device 17 oxygenates the water to meet the oxygen demand of fish in high-density aquaculture, and improves the stability and sustainability of the aquaculture environment as a whole.

[0031] In one embodiment, baffles 16 are provided on both the circulation pipe 20 and the inlet pipe 11. The baffles 16 are used to change the angle and direction of the water flow to form a clockwise flow. A first gap 24 is formed between the arc-shaped circular plate 23 and the inner bottom wall of the tank body 10. The first gap 24 is used to allow fish feces and fish feed to flow in, and its gap is smaller than the volume of the farmed fish to prevent the fish from passing through. A second gap 25 is formed between the circulation pipe 20 and the L-shaped pipe 12. The second gap 25 is used to allow fish feces and fish feed to fall into the drain pipe 13, and to allow some water to flow back into the tank body 10 through the circulation pipe 20 and the filter screen 21.

[0032] The baffles 16 on the circulation pipe 20 and the inlet pipe 11 guide the water flow to form a clockwise flow, using the centrifugal force of the water flow to gather pollutants such as fish feces and feed residue to the center of the bottom of the tank 10, thereby improving the efficiency of pollutant concentration. The first gap 24 between the arc-shaped circular plate 23 and the inner bottom wall allows pollutants to flow smoothly into the sewage discharge area, and because the gap is smaller than the volume of the farmed fish, it effectively prevents fish from entering and causing losses. The second gap 25 between the circulation pipe 20 and the L-shaped pipe 12 provides a channel for pollutants to fall to the sewage discharge pipe 13, ensuring smooth sewage discharge. On the other hand, it allows some water flow to carry a small amount of pollutants into the circulation pipe 20, which are then filtered and returned, realizing the recycling of water resources and reducing wastewater discharge.

[0033] In one embodiment, the circulation pipe 20 extends into the tank 10 at a height higher than the inner bottom wall of the tank 10. The filter screen 21 is a detachable structure with a mesh size of 80-120, used to filter fish feces and feed residue in the water flowing back into the tank 10; the aeration device 17 includes an aeration disc and an air supply pipe. The aeration disc is installed on the inner bottom wall of the tank 10, one end of the air supply pipe is connected to the aeration disc, and the other end extends to the outside of the tank 10 for oxygenating the water inside the tank 10.

[0034] The circulation pipe 20 extends into the tank 10 at a height higher than the inner bottom wall, preventing a large amount of pollutants deposited at the bottom of the tank 10 from directly entering the circulation pipe 20. This reduces the filtration pressure on the filter screen 21, extends its service life, and ensures that the pollutant content of the water entering the circulation is low, thus improving the quality of the circulating water. The filter screen 21 has a detachable structure, making it easy to clean or replace regularly and preventing clogging that could affect water circulation. Its 80-120 mesh design effectively filters pollutants such as fish feces and feed residue without excessively obstructing water flow, adapting to the filtration needs of different pollutant sizes. The aeration disc of the aeration device 17 is installed on the inner bottom wall, which can evenly release oxygen. Combined with the air supply pipe for external air supply, it can efficiently increase the dissolved oxygen content in the water. The tiny bubbles generated by aeration can promote water flow, assist in the diffusion and aggregation of pollutants, further optimize the aquaculture environment, and meet the stringent requirements of high-density aquaculture for oxygen and water quality.

[0035] When this utility model is in operation: external water source enters the tank 10 through the water inlet pipe 11, while the circulation pipe 20 drains part of the water in the tank and returns it. The baffles 16 on the water inlet pipe 11 and the circulation pipe 20 work together to change the water flow angle to form a clockwise directional flow. Under the guidance of centrifugal force and the cone-shaped part 15 at the bottom of the tank 10, pollutants such as fish feces and feed residue are gradually pushed to the center area at the bottom of the tank 10.

[0036] The first gap 24 formed by the arc-shaped circular plate 23 and the inner bottom wall of the tank 10 allows accumulated pollutants to enter the bottom sewage discharge area. At the same time, because the gap is smaller than the volume of the farmed fish, it effectively prevents fish from entering and avoids them from accidentally entering the sewage discharge channel. The pollutants entering the bottom pass through the second gap 25 between the circulation pipe 20 and the L-shaped pipe 12. Part of them fall directly into the sewage discharge pipe 13 and can be discharged from the tank 10 by opening the valve 14. The other part enters the circulation pipe 20 with part of the water flow. After being filtered by the 80-120 mesh detachable filter screen 21 to remove pollutants, it flows back into the tank 10 to achieve water recycling.

[0037] Meanwhile, the aeration device 17 on the bottom wall of the tank 10 continuously releases oxygen through the aeration disc, and the air supply pipe delivers air from the outside to ensure that the dissolved oxygen in the water meets the needs of high-density aquaculture. Combined with the dynamic environment formed by the directional water flow, it provides fish with a clean and oxygen-rich growth space, achieving efficient and sustainable high-density aquaculture.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A high-density fish farming tank device, characterized in that: Includes a barrel (10); the barrel (10) is connected to an inlet pipe (11), the lower part of the barrel (10) is provided with a conical part (15), the bottom of the barrel (10) is connected to an L-shaped pipe (12), one end of the L-shaped pipe (12) is connected to a drain pipe (13), a valve (14) is installed on the drain pipe (13), the side wall of the L-shaped pipe (12) is connected to a circulation pipe (20), one end of the circulation pipe (20) is connected to the barrel (10) and is provided with a filter screen (21), the other end of the circulation pipe (20) extends through the L-shaped pipe (12) to the inside of the barrel (10) and is fixedly connected to a fixing block (22), one side of the fixing block (22) is fixedly connected to an arc-shaped circular plate (23), and an aeration device (17) is installed on the inner bottom wall of the barrel (10).

2. The high-density fish farming tank device according to claim 1, characterized in that: Both the circulation pipe (20) and the inlet pipe (11) are equipped with baffles (16), which are used to change the direction of the water flow angle to form a clockwise flow.

3. The high-density fish farming tank device according to claim 1, characterized in that: A first gap (24) is formed between the arc-shaped circular plate (23) and the inner bottom wall of the barrel (10). The first gap (24) is used to allow fish feces and fish feed to flow in, and its gap is smaller than the volume of the farmed fish to prevent the fish from passing through.

4. The high-density fish farming tank device according to claim 1, characterized in that: A second gap (25) is formed between the circulation pipe (20) and the L-shaped pipe (12). The second gap (25) is used for fish feces and fish feed to fall into the sewage pipe (13), and for some water to flow back into the tank (10) through the circulation pipe (20) and the filter screen (21).

5. The high-density fish farming tank device according to claim 4, characterized in that: The circulation pipe (20) extends into the barrel (10) at a height higher than the inner bottom wall of the barrel (10).

6. The high-density fish farming tank device according to claim 1, characterized in that: The filter screen (21) is a detachable structure with a mesh size of 80-120, used to filter fish feces and feed residue in the water flowing back into the barrel (10).

7. The high-density fish farming tank device according to claim 1, characterized in that: The aeration device (17) includes an aeration disc and an air supply pipe. The aeration disc is installed on the inner bottom wall of the barrel (10). One end of the air supply pipe is connected to the aeration disc, and the other end extends to the outside of the barrel (10) for oxygenating the water inside the barrel (10).

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