A self-flowing water-oxygen mixer

Abstract

The utility model discloses a kind of self-flow type water-oxygen mixers, including connecting pipe, one end of the connecting pipe is fixedly connected with connecting flange, the connecting flange is used to connect connecting pipe on water circulating equipment;Mixing assembly is provided on the connecting pipe, the upper surface of the connecting pipe close to mixing assembly is also communicated with air inlet pipe, the mixing assembly can inhale air by air inlet pipe and mix oxygen with water body.The utility model in the present application, by setting connecting pipe cooperation mixing assembly, water circulating equipment can be transported water through conical shell to reduce flow cross section, improve flow speed, and cooperate air inlet pipe and shunt shell to further improve the flow rate when water passes through air inlet pipe, while using Bernoulli effect to make air inlet pipe can inhale air, realize the mixing of water and air, and then realize water-oxygen mixing, improve the oxygen content in water.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, and in particular to a self-flowing water-oxygen mixer. Background Technology

[0002] Dissolved oxygen (DO) plays a crucial role in aquaculture. Since each ton of fish consumes approximately 3 kg of oxygen per day, ensuring a stable supply of dissolved oxygen in the aquaculture water is an indispensable part of recirculating aquaculture systems (RAS). There is a close relationship between stocking density and system dissolved oxygen levels; with the addition of aeration, the upper limit for stocking density in RAS is typically maintained at around 30 to 50 kg / m³.

[0003] Among existing technologies, recirculating aquaculture is a type of automated aquaculture that can utilize water circulation to achieve high-density aquaculture, supporting a 25-fold increase in stocking density compared to traditional methods, while reducing water demand by 90%-99%.

[0004] However, the aeration equipment used in existing recirculating aquaculture systems has many obvious drawbacks:

[0005] Firstly, the energy consumption is too high. Traditional oxygenation devices mostly rely on independent air compressors or aeration pumps to force oxygen into the system. These devices require a large amount of electricity to continuously be consumed. In high-density aquaculture scenarios, the energy consumption of the oxygenation process often accounts for more than 30% of the total energy consumption of the system, which significantly increases the cost of aquaculture.

[0006] Secondly, oxygen mixing efficiency is low. Conventional aeration discs, jet aerators, and other equipment are prone to problems such as excessively large oxygen bubbles and short residence time in the water, resulting in an oxygen utilization rate of usually less than 20%. A large amount of undissolved oxygen escapes directly into the air, which not only wastes resources but also makes it difficult to meet the precise dissolved oxygen requirements of high-density aquaculture.

[0007] Therefore, we propose a self-flowing water-oxygen mixer to solve the above problems. Utility Model Content

[0008] The purpose of this invention is to solve the problems existing in the prior art by proposing a self-flowing water-oxygen mixer.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A self-flowing water-oxygen mixer includes a connecting pipe, one end of which is fixedly connected to a connecting flange, which is used to connect the connecting pipe to a water circulation device.

[0011] A mixing component is provided on the connecting pipe, and an air inlet pipe is also connected to the upper surface of the connecting pipe near the mixing component. The mixing component can draw in air through the air inlet pipe and mix oxygen with water.

[0012] Preferably, the mixing component includes a conical shell fixedly connected to the inner wall of the connecting pipe, a flow divider shell fixedly connected to the inner wall of the conical shell, the flow divider shell fixedly connected to the lower end of the air intake pipe, and a swirl structure fixedly connected to the end of the connecting pipe away from the flange.

[0013] Preferably, the swirl structure includes a plurality of left-handed and a plurality of right-handed swirl plates located on the connecting pipe, with the left-handed and right-handed swirl plates alternately arranged.

[0014] Preferably, both the left-hand and right-hand rotating plates are provided with grooves, and a counter-flow inclined plate is fixedly connected in the groove.

[0015] Preferably, a conical block is fixedly connected to one end of the diversion shell near the connecting flange.

[0016] Preferably, the end of the connecting pipe away from the connecting flange is connected to a water outlet cover via a flexible hose, and a float is fixedly connected to the water outlet cover.

[0017] Preferably, the opening of the water outlet cover faces the float, and a baffle is fixedly connected to the lower surface of the water outlet cover.

[0018] Preferably, the cross-section of the baffle is cross-shaped, and the density of the baffle is greater than the density of water.

[0019] Preferably, the left-hand and right-hand rotating plates have the same length, and the distance between the left-hand and right-hand rotating plates is one-third of the length of the left-hand rotating plate.

[0020] Preferably, the connecting pipe is provided with an inner tube, which is connected to the conical shell, and the vortex structure is located in the inner tube.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] 1. This utility model, by setting a connecting pipe and a mixing component, can reduce the flow cross-section of the water transported by the water circulation equipment through the conical shell, increase the flow speed, and thus accelerate the water flow. In addition, the air inlet pipe and the diverter shell further increase the flow velocity of the water when passing through the air inlet pipe. At the same time, the Bernoulli effect is used to enable the air inlet pipe to draw in air, realize the mixing of water and air, and thus realize the mixing of water and oxygen, thereby increasing the oxygen content in the water.

[0023] 2. This utility model, by setting up a swirling component, uses multiple alternating left-hand and right-hand swirling plates to drive water containing air into a swirling flow and then into a reverse swirling flow, which improves the mixing effect of air and water, increases the dissolved oxygen content in the water, achieves a better oxygenation effect, and does not require an additional power source for driving, making it more convenient to use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a self-flowing water-oxygen mixer proposed in this utility model.

[0025] Figure 2 This is a cross-sectional structural diagram of a self-flowing water-oxygen mixer proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the left-hand rotating plate structure of a self-flowing water-oxygen mixer proposed in this utility model;

[0027] Figure 4 This is a partial structural schematic diagram of a self-flowing water-oxygen mixer proposed in this utility model.

[0028] In the diagram: 1. Connecting pipe; 2. Connecting flange; 3. Air inlet pipe; 4. Conical shell; 5. Diverter shell; 6. Left-hand rotating plate; 7. Right-hand rotating plate; 8. Reverse flow inclined plate; 9. Water outlet cover; 10. Float; 11. Baffle; 12. Inner pipe; 13. Flexible hose; 14. Conical block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Reference Figures 1-4 A self-flowing water-oxygen mixer includes a connecting pipe 1, one end of which is fixedly connected to a connecting flange 2, which is used to connect the connecting pipe 1 to a water circulation device.

[0031] The connecting pipe 1 is the main body of this water-oxygen mixer, while the water circulation equipment connected to the connecting flange 2 is an integrated device that includes a water pump, physical filtration device (microfilter / arc screen), biological treatment unit (biological fluidized bed), and disinfection module (ultraviolet / ozone). After the aquaculture water is cleaned, the water flows into the connecting pipe 1 under the drive of the water pump for water-oxygen mixing.

[0032] A mixing component is provided on the connecting pipe 1. An air inlet pipe 3 is also connected to the upper surface of the connecting pipe 1 near the mixing component. The mixing component can draw in air through the air inlet pipe 3 and mix oxygen with water. The upper end of the air inlet pipe 3 is higher than the water surface and is used to draw in air and work with the mixing component to mix oxygen in the air into the water to increase the dissolved oxygen content of the aquaculture water.

[0033] Furthermore, the mixing component includes a conical shell 4 fixedly connected to the inner wall of the connecting pipe 1. A flow divider shell 5 is fixedly connected to the inner wall of the conical shell 4, and a conical block 14 is fixedly connected to one end of the flow divider shell 5 near the connecting flange 2. The conical block 14 is used to guide the water flow and prevent the flow divider shell 5 from having too much resistance to the water, which would cause the water flow velocity to decrease and affect the amount of air drawn in. The flow divider shell 5 is fixedly connected to the lower end of the air inlet pipe 3, and a swirl structure is fixedly connected to the end of the connecting pipe 1 away from the flange.

[0034] Based on the above design, the inner diameter of the conical shell 4 near the connecting flange 2 is larger than that of the end away from the connecting flange 2, which is used to reduce the flow cross section and increase the water flow velocity. After the water flow velocity increases, when the water flows through the diversion shell 5, the water flow continues to flow along the connecting pipe 1 under the guidance of the diversion shell 5 through the edge of the diversion shell 5. The water flow velocity is relatively fast, forming a low-pressure area near the diversion shell 5, and then drawing in outside air through the air inlet pipe 3. Subsequently, the air and water flow mix and flow towards the vortex structure. This design is based on the Bernoulli effect, using the water flow to draw in air, so that the air and water are mixed, thereby achieving the purpose of water-oxygen mixing.

[0035] Furthermore, an inner tube 12 is provided inside the connecting pipe 1, and the inner tube 12 is connected to the conical shell 4. The swirling structure is located in the inner tube 12. The swirling structure includes multiple left-handed swirling plates 6 and multiple right-handed swirling plates 7 that are fixedly connected to the inner wall of the inner tube 12. The left-handed swirling plates 6 and right-handed swirling plates 7 are arranged alternately. The lengths of the left-handed swirling plates 6 and right-handed swirling plates 7 are the same. The distance between the left-handed swirling plates 6 and right-handed swirling plates 7 is one-third of the length of the left-handed swirling plates 6. Grooves are provided on both the left-handed swirling plates 6 and right-handed swirling plates 7. A counter-current inclined plate 8 is fixedly connected in the groove.

[0036] Based on this design, the alternating left-hand rotating plate 6 and right-hand rotating plate 7 can guide the flow pattern of water and air to change to swirling flow after mixing. After passing the left-hand rotating plate 6, the swirling flow direction will change from turbulence to mixed flow after contacting the right-hand rotating plate 7, allowing water and air in different areas to come into contact and fully mix with air in the connecting pipe 1, effectively increasing the oxygen dissolution rate and achieving a better oxygenation effect. The spacing is one-third of the length of the left-hand rotating plate 6, which can leave space for water to mix. In particular, when water in the swirling state comes into contact with the next rotating plate, the water flow direction changes abruptly, which will generate turbulence. The gap between the left-hand rotating plate 6 and the right-hand rotating plate 7 is to make way for this. The counter-flow inclined plate 8 set on the left-hand rotating plate 6 and the right-hand rotating plate 7 guides some water to change its flow direction after flowing to the groove position, making the water flow direction more chaotic and further improving the water-oxygen mixing effect.

[0037] It should be noted that the space between the inner tube 12 and the connecting tube 1 is a vacuum cavity or a cavity filled with sound insulation material. When water flows through the swirling structure, it is easy to generate a lot of noise. Therefore, sound insulation measures are set up here to reduce the noise level and reduce the adverse effects of noise on management personnel and aquatic fish.

[0038] Furthermore, the end of the connecting pipe 1 away from the connecting flange 2 is connected to a water outlet cover 9 via a hose 13. A float 10 is fixedly connected to the water outlet cover 9, the opening of the water outlet cover 9 faces the float 10, and a baffle 11 is fixedly connected to the lower surface of the water outlet cover 9. The cross-section of the baffle 11 is cross-shaped, and the density of the baffle 11 is greater than the density of water.

[0039] In this design, a water outlet hood 9 is used to guide the water after the water-oxygen mixture to flow out through the connecting pipe 1. Since a vortex component is installed in the connecting pipe 1, the purpose of oxygen dissolving in the water has been achieved. Therefore, a float 10 is set to move the water outlet hood 9 to a position close to the water surface to reduce water outlet resistance. At the same time, since the nitrogen content in the air is high, a large amount of air still needs to be discharged after the water-oxygen mixture is mixed. Therefore, the opening of the water outlet hood 9 faces upward. The cross-shaped baffle 11 is set to restrict the movement of the water outlet hood 9 when draining water. The baffle 11 also increases the weight of the water outlet hood 9, making its position in the water more stable. No additional fixing device is required. On this basis, the use of a flexible hose 13 is used to prevent the entire mixer from vibrating due to the reaction force of the water flow when the water outlet hood 9 discharges water, which would lead to decreased equipment stability and greater noise.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A self-flowing water-oxygen mixer, characterized in that, include: A connecting pipe (1) is fixedly connected to one end of a connecting flange (2), which is used to connect the connecting pipe (1) to a water circulation device; A mixing component is provided on the connecting pipe (1), and an air inlet pipe (3) is connected to the upper surface of the connecting pipe (1) near the mixing component. The mixing component can draw in air through the air inlet pipe (3) and mix oxygen with water. The mixing assembly includes a conical shell (4) fixedly connected to the inner wall of the connecting pipe (1), a flow divider shell (5) fixedly connected to the inner wall of the conical shell (4), the flow divider shell (5) fixedly connected to the lower end of the air inlet pipe (3), and a swirl structure fixedly connected to the end of the connecting pipe (1) away from the flange.

2. The self-flowing water-oxygen mixer according to claim 1, characterized in that, The swirling structure includes multiple left-handed plates (6) and multiple right-handed plates (7) arranged inside the connecting pipe (1), with the left-handed plates (6) and right-handed plates (7) arranged alternately.

3. A self-flowing water-oxygen mixer according to claim 2, characterized in that, Both the left-hand rotating plate (6) and the right-hand rotating plate (7) are provided with grooves, and a counter-flow inclined plate (8) is fixedly connected in the groove.

4. A self-flowing water-oxygen mixer according to claim 3, characterized in that, A conical block (14) is fixedly connected to one end of the diversion shell (5) near the connecting flange (2).

5. A self-flowing water-oxygen mixer according to claim 4, characterized in that, The end of the connecting pipe (1) away from the connecting flange (2) is connected to a water outlet cover (9) via a hose (13), and a float (10) is fixedly connected to the water outlet cover (9).

6. A self-flowing water-oxygen mixer according to claim 5, characterized in that, The opening of the water outlet cover (9) faces the float (10), and a baffle (11) is fixedly connected to the lower surface of the water outlet cover (9).

7. A self-flowing water-oxygen mixer according to claim 6, characterized in that, The cross-section of the baffle (11) is cross-shaped, and the density of the baffle (11) is greater than that of water.

8. A self-flowing water-oxygen mixer according to claim 7, characterized in that, The left-hand plate (6) and the right-hand plate (7) have the same length, and the distance between the left-hand plate (6) and the right-hand plate (7) is one-third of the length of the left-hand plate (6).

9. A self-flowing water-oxygen mixer according to claim 8, characterized in that, The connecting pipe (1) is provided with an inner pipe (12), which is connected to the conical shell (4), and the vortex structure is located in the inner pipe (12).

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