Transportation oxygenation device for fish aquatic products

Abstract

The utility model discloses a kind of transport oxygenation devices for fish aquatic products, including transport box body, the fixed platform is equipped in transport box body upper portion, the top cover is equipped in the opening of transport box body upper portion, further include micro-nano bubble unit, the micro-nano bubble unit includes premixing cavity fixed in the upper portion of fixed platform, the premixing cavity side is communicated with Venturi tube, the pipeline that Venturi tube is communicated with by gas pump air supply, gas is primarily mixed to form gas-liquid two-phase flow in the premixing cavity by Venturi tube and high-pressure water flow, the cyclone shear cavity is communicated with in the lower portion of premixing cavity by a pipeline that penetrates fixed platform, the outlet lower portion of cyclone shear cavity is communicated with ultrasonic transducer. The utility model belongs to the technical field of oxygenation device, effectively solve the problem that oxygen distribution is uneven when using transport oxygenation devices for fish aquatic products, affect the survival rate of fish aquatic products transportation.

Description

Technical Field

[0001] This utility model belongs to the technical field of oxygenation devices, specifically referring to an oxygenation device for transporting fish and aquatic products. Background Technology

[0002] Fish and aquatic product transportation is a crucial link in the field of aquaculture technology, which helps to promote the large-scale development of aquaculture. During transportation, the use of transportation equipment is required for transporting fish fry. Oxygenated transport boxes are usually used, which use air pumps to pressurize air into the water, allowing the oxygen in the air to fully contact with the water, thereby increasing the oxygen content of the water, ensuring the survival of the fish.

[0003] Existing oxygenation devices for transporting fish and aquatic products have the following main problems in practical applications: The combination of traditional air pumps and micro-pore aeration generally results in uneven oxygen distribution. The bubbles generated by the air pump are typically on the order of millimeters in diameter, rise rapidly, and have low dissolution efficiency, leading to the formation of oxygen-rich and oxygen-deficient zones within the transport container. Fish, attracted to oxygen, gather near the aeration vents, exacerbating collisions, scale loss, and stress responses, thus increasing mortality. Utility Model Content

[0004] The technical problem this invention aims to solve is that the oxygen distribution in the oxygenation device used for transporting fish and aquatic products is uneven, which affects the survival rate of fish and aquatic products during transport.

[0005] The technical solution adopted by this utility model is as follows: The present utility model proposes a transport oxygenation device for fish and aquatic products, including a transport box body, a fixed platform on the upper part of the transport box body, a top cover at the upper opening of the transport box body, and a micro-nano bubble unit. The micro-nano bubble unit includes a premixing chamber fixed to the upper part of the fixed platform. A venturi tube is connected to one side of the premixing chamber. The venturi tube is connected to a pipe supplied with air by an air pump. The gas is initially mixed with high-pressure water in the premixing chamber through the venturi tube to form a gas-liquid two-phase flow. The lower part of the premixing chamber is connected to a vortex shearing chamber through a pipe penetrating the fixed platform. An ultrasonic transducer is connected to the lower outlet of the vortex shearing chamber.

[0006] Furthermore, a rotating rod is provided inside the swirl shearing cavity, and multiple sets of helical blades are vertically distributed on the rotating rod.

[0007] Furthermore, a pump is provided on the fixed platform, and the pump is connected to the premixing chamber through a water inlet pipe. The water inlet end of the pump is connected to a liquid extraction pipe that passes through the fixed platform.

[0008] Furthermore, the bottom of the transport box body is provided with a honeycomb-shaped nano-ceramic aeration plate, which is connected to an ultrasonic transducer. The pore size of the nano-ceramic aeration plate is 0.1-0.3μm, and its surface is coated with a TiO2 photocatalytic coating.

[0009] Furthermore, a jet pipe is fixed to the inner wall of the transport box body, and multiple sets of jet nozzles are provided on the jet pipe. The jet pipe is connected to an air compressor through a pipe that penetrates the outer wall of the transport box body.

[0010] Furthermore, multiple sets of guide plates are fixed to the bottom wall of the top cover. The guide plates are arranged symmetrically in a herringbone shape at the central axis of the top of the transport container body, and the installation height is 1 / 6 of the water depth inside the transport container body.

[0011] The beneficial effects of this utility model by adopting the above structure are as follows:

[0012] 1. A micro-nano bubble unit is set up. After premixing the gas and liquid, the gas-liquid mixture is cut into micron-sized bubbles by centrifugal force, and then ultrasonic crushing is used to further refine the micron-sized bubbles and improve the uniformity of oxygenation.

[0013] 2. An air distribution design is implemented within the transport container to achieve three-dimensional circulation, further improving the uniformity of dissolved oxygen within the transport container. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure from another perspective of an embodiment of the present utility model;

[0016] Figure 3 This is a schematic diagram of the structure of a micro / nano bubble unit;

[0017] Figure 4 A schematic diagram showing the structural installation of the rotating rod and the helical blades;

[0018] Figure 5 This is a schematic diagram of the structure and installation of the air deflector.

[0019] The components include: 1. Transport box body; 11. Fixing platform; 12. Top cover; 2. Premixing chamber; 21. Venturi tube; 22. Swirl shear chamber; 23. Ultrasonic transducer; 3. Rotating rod; 31. Helical blade; 4. Pump; 41. Water inlet pipe; 42. Liquid extraction pipe; 5. Nano-ceramic aeration plate; 6. Jet pipe; 61. Jet nozzle; 62. Air compressor; 7. Guide plate. Detailed Implementation

[0020] Example 1:

[0021] like Figure 1 , Figure 3 and Figure 4 As shown, the present invention proposes a transport oxygenation device for fish and aquatic products, comprising a transport box body 1, a fixed platform 11 on the upper part of the transport box body 1, a top cover 12 at the upper opening of the transport box body 1, and a micro-nano bubble unit. The micro-nano bubble unit includes a premixing chamber 2 fixed to the upper part of the fixed platform 11. A venturi tube 21 is connected to one side of the premixing chamber 2. The venturi tube 21 is connected to a pipe supplied with air by an air pump. The gas is initially mixed with high-pressure water flow in the premixing chamber 2 through the venturi tube 21 to form a gas-liquid two-phase flow. The lower part of the premixing chamber 2 is connected to a vortex shearing chamber 22 through a pipe penetrating the fixed platform 11. An ultrasonic transducer 23 is connected to the lower outlet of the vortex shearing chamber 22. A rotating rod 3 is provided in the vortex shearing chamber 22, and multiple sets of spiral blades 31 are vertically distributed on the rotating rod 3.

[0022] In the premixing chamber 2, the gas is initially mixed with the high-pressure water flow through the venturi tube 21 to form a gas-liquid two-phase flow. In the swirling shearing chamber 22, the gas-liquid mixture is cut into micron-sized bubbles by centrifugal force through the rotation of the spiral blades 31. The ultrasonic transducer 23 uses 20kHz ultrasound to further refine the micron-sized bubbles.

[0023] like Figure 2 As shown, a pump 4 is provided on the fixed platform 11. The pump 4 is connected to the premixing chamber 2 through a water inlet pipe 41. The water inlet end of the pump 4 is connected to a liquid extraction pipe 42 that passes through the fixed platform 11. When the pump 4 works, the water in the transport box body 1 is extracted from the liquid extraction pipe 42 and sent into the premixing chamber 2 through the water inlet pipe 41 to mix with the gas.

[0024] Example 2:

[0025] like Figure 2 As shown, the bottom of the transport box body 1 is provided with a honeycomb nano-ceramic aeration plate 5. The nano-ceramic aeration plate 5 is connected to the ultrasonic transducer 23. The pore size of the nano-ceramic aeration plate 5 is 0.1-0.3μm, and the surface is coated with a TiO2 photocatalytic coating. The generated micro-nano bubbles are released through the nano-ceramic aeration plate 5.

[0026] A jet pipe 6 is fixed to the inner wall of the transport box body 1. Multiple jet nozzles 61 are provided on the jet pipe 6. The jet pipe 6 is connected to an air compressor 62 through a pipe that penetrates the outer wall of the transport box body 1. The air compressor 62 generates air pressure and sends it into the jet pipe 6, and airflow is ejected from the jet nozzles 61.

[0027] like Figure 5As shown, multiple sets of guide plates 7 are fixed to the bottom wall of the top cover 12. The guide plates 7 are arranged symmetrically in a herringbone shape at the top center axis of the transport box body 1, and the installation height is 1 / 6 of the water depth inside the transport box body 1.

[0028] In practical use, micro-nano bubbles are released from the nano-ceramic aeration plate 5 at the bottom of the transport tank body 1 into the water inside the transport tank body 1. They are combined with the side jet pipe 6 and jet nozzle 61 to perform lateral jetting. Combined with the top guide plate 7, a three-dimensional circulation is formed, which improves the uniformity of dissolved oxygen. This forms a three-dimensional circulation of bottom aeration, side jetting and top guidance, thereby improving the uniformity of dissolved oxygen.

[0029] The above is the entire process of using an oxygenation device for transporting fish and aquatic products.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

[0031] Unless otherwise expressly specified and limited, the terms "set up," "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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

Claims

1. A transport oxygenation device for fish and aquatic products, comprising a transport box body (1), wherein a fixed platform (11) is provided on the upper part of the transport box body (1), and a top cover (12) is provided at the upper opening of the transport box body (1), characterized in that: It also includes a micro-nano bubble unit, which includes a premixing chamber (2) fixed to the upper part of the fixed platform (11). A venturi tube (21) is connected to one side of the premixing chamber (2). The venturi tube (21) is connected to a pipe supplied by an air pump. The gas is initially mixed with the high-pressure water flow in the premixing chamber (2) through the venturi tube (21) to form a gas-liquid two-phase flow. The lower part of the premixing chamber (2) is connected to a vortex shearing chamber (22) through a pipe penetrating the fixed platform (11). The lower outlet of the vortex shearing chamber (22) is connected to an ultrasonic transducer (23).

2. The oxygenation device for transporting fish and aquatic products according to claim 1, characterized in that: The swirling shearing cavity (22) is provided with a rotating rod (3), and multiple sets of helical blades (31) are vertically distributed on the rotating rod (3).

3. The oxygenation device for transporting fish and aquatic products according to claim 1, characterized in that: A pump (4) is provided on the fixed platform (11). The pump (4) is connected to the premixing chamber (2) through a water inlet pipe (41). The water inlet end of the pump (4) is connected to a liquid extraction pipe (42) that passes through the fixed platform (11).

4. The oxygenation device for transporting fish and aquatic products according to claim 1, characterized in that: The bottom of the transport box body (1) is provided with a honeycomb nano-ceramic aeration plate (5), which is connected to an ultrasonic transducer (23). The pore size of the nano-ceramic aeration plate (5) is 0.1-0.3μm, and the surface is coated with a TiO2 photocatalytic coating.

5. The oxygenation device for transporting fish and aquatic products according to claim 4, characterized in that: A jet pipe (6) is fixed to the inner wall of the transport box body (1). Multiple jet nozzles (61) are provided on the jet pipe (6). The jet pipe (6) is connected to an air compressor (62) through a pipe that penetrates the outer wall of the transport box body (1).

6. The oxygenation device for transporting fish and aquatic products according to claim 5, characterized in that: Multiple sets of guide plates (7) are fixed to the bottom wall of the top cover (12). The guide plates (7) are arranged symmetrically in a herringbone shape at the top center axis of the transport box body (1), and the installation height is 1 / 6 of the water depth inside the transport box body (1).

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