A large-scale airlift water propulsion and aeration device
By combining a high-pressure air pump with a nano-membrane tube, the problem of uneven bubble distribution in the airlift oxygenation system for large water surfaces is solved, achieving uniformity and stability of airflow, improving oxygen diffusion, reducing energy consumption, increasing oxygenation efficiency, adapting to complex water flow environments on large water surfaces, and offering flexible equipment deployment and easy maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU SHUILIN FISHERY CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-03
AI Technical Summary
In large-scale recirculating aquaculture systems, traditional mechanical aeration equipment is inflexible in deployment, difficult to maintain, energy-intensive, and inefficient. In complex water flow environments, airlift aeration systems suffer from uneven bubble distribution, leading to insufficient oxygen in some areas, reduced air pump efficiency, increased energy consumption, and an inability to effectively improve aeration.
By combining a high-pressure air pump with a nano-membrane tube, and through the design of an air outlet plate, inner and outer vertical grooved rings, and a balance plate, the uniformity and stability of airflow are ensured. Combined with an air lifter, a bidirectional threaded tube, and a spiral tube, uniform diffusion of bubbles and water circulation are achieved. Powered by a solar panel, the equipment can be easily installed and efficiently oxygenated.
It achieves uniformity and stability of airflow, improves oxygen diffusion, reduces energy consumption, enhances oxygenation efficiency, adapts to complex water flow environments on large water surfaces, and allows for flexible equipment deployment and easy maintenance.
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Figure CN224440114U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of water-lifting and oxygenation technology, specifically a large-scale water surface air-lift water-lifting and oxygenation device. Background Technology
[0002] Currently, in large-scale recirculating aquaculture systems (WRAS), problems such as water stratification, insufficient dissolved oxygen at the bottom, and organic matter deposition often occur due to the large water area and poor water flow. These problems can easily lead to localized hypoxia, limited swimming space for fish, accumulation of benthic pollutants, and frequent outbreaks of aquaculture diseases. Traditional mechanical aeration equipment is limited in its use on large water surfaces, is inflexible in deployment, difficult to maintain, and has high energy consumption and low efficiency.
[0003] Airlift aeration, due to its lack of moving parts, stable operation, and energy efficiency, has become a new direction for solving the problem of water aeration in large water surfaces. However, there is currently a lack of dedicated devices that are suitable for aquaculture tank deployment, modularly combined, and easy to install. Large-scale airlift aeration systems inject air directly into the bottom of the water using an air pump. The air mixes with the water to generate bubbles, which are then dispersed and dissolved by the water flow, thereby increasing the dissolved oxygen content in the water. This system is widely used in aquaculture, wastewater treatment, and other fields to improve dissolved oxygen levels and promote water quality. However, in practical applications, this method also faces some technical challenges, particularly regarding water flow distribution and air pump efficiency.
[0004] Firstly, the main function of an air pump is to deliver air through pipes to the bottom of the water. The air bubbles collide with the water's current, dissolving oxygen and achieving oxygenation. However, in deep water, due to the fluidity and volatility of the water flow, the contact range and uniformity between the bubbles and the water are often unreliable. The water flow at depth is more volatile, and the bubbles may diffuse along irregular paths under the force of the current, resulting in uneven bubble distribution. This affects the oxygen diffusion effect. When the bubble distribution is uneven, some areas may have good oxygen dissolution, while others lack sufficient oxygen, failing to achieve the desired oxygenation effect. This situation is particularly common in deep water or environments with complex currents. For example, at the bottom of the water, bubbles may experience backflow due to the reverse current, causing them to flow back to the air pump's intake, thus reducing the pump's efficiency. In this case, the air pump's energy consumption increases, but the oxygenation effect does not significantly improve. Furthermore, a significant reason for the reduced air pump efficiency is the phenomenon of bubble backflow. As air bubbles rise in the water, some are drawn into the recirculation zone by the reverse flow and re-enter the air pump inlet. This increases the workload on the air pump, consumes more electricity, and fails to effectively promote the diffusion of oxygen in the water. This not only wastes energy but also reduces the overall efficiency of the system and affects the oxygenation effect. Utility Model Content
[0005] The purpose of this application is to provide a large-scale airlift-type water propulsion and oxygenation device in order to solve the problems mentioned above.
[0006] The technical solution adopted in this application is as follows: A large water surface airlift type water propulsion and oxygenation device includes a high-pressure air pump, an air intake main body shell welded to the upper surface of the high-pressure air pump, an air outlet plate provided on the upper surface of the air intake main body shell, a limit frame welded to the upper surface of the air intake main body shell, an inner vertical grooved ring welded to the outer surface of the middle of the limit frame, an outer vertical grooved ring movably inserted into the inner surface of the inner vertical grooved ring, a balance plate welded to the lower surface of the outer vertical grooved ring, and a nanofilm tube provided on the outer surface of the air intake main body shell.
[0007] By adopting the above technical solution, the nanotube connects to the outside air and provides airflow under the action of a high-pressure air pump, generating a pressure difference. Air is output through the middle and periphery of the air outlet plate, pushing open the outer vertical rib ring and the balance plate. Under the action of the inner and outer vertical rib rings, the outer vertical rib ring and the balance plate can only move up and down. When the pressure is uneven, the limiting of the outer vertical rib ring and the balance plate compresses the air into other spaces, ensuring the uniformity and stability of the airflow. The air is pushed upward from the middle as a whole.
[0008] In a preferred embodiment, an air lifting cylinder body is welded to the upper surface of the limiting frame, and an expansion disc is welded to the lower outer surface of the air lifting cylinder body.
[0009] By adopting the above technical solution, the main body of the air lifting cylinder serves as the main space for air lifting, which facilitates the guidance of water flow for circulation. The expansion plate expands outward to collect the outward air into the main body of the air lifting cylinder.
[0010] In a preferred embodiment, a bidirectional threaded tube is detachably connected to the inner surface of the upper end of the air lifting cylinder body, a guide block is welded to the outer surface of the middle of the bidirectional threaded tube, and a venting pipe is provided on the inner surface between the bidirectional threaded tube and the guide block.
[0011] By adopting the above technical solution, when the bidirectional threaded pipe is propulsed by the overall air lift, the water flow inside the air pipe set by the bidirectional threaded pipe and the guide block is fast, which brings in the external water flow. Then, the water flow mixes with the water flow brought out by the main body of the air lift cylinder from the corresponding guide block on the outside of the bidirectional threaded pipe. Through the combination connection, it is convenient to carry out circulation operation on water flow layers at different heights.
[0012] In a preferred embodiment, a spiral tube is welded to the upper surface of the bidirectional threaded tube, and an extension tube is detachably connected to the upper outer surface of the bidirectional threaded tube.
[0013] By adopting the above technical solution, external water flow is introduced, and vortices are generated when it passes through the spiral tube, providing better propulsion.
[0014] In a preferred embodiment, an upper outlet pipe is detachably connected to the inner surface of the upper end of the extension pipe, an umbrella-shaped water outlet cover is welded to the outer surface of the upper end of the upper outlet pipe, and a conical guide block is welded to the lower surface of the middle of the umbrella-shaped water outlet cover.
[0015] By adopting the above technical solution, the extension pipe can easily extend the air lifting distance. After reaching the upper outlet pipe, it is guided from the middle to the outside by a conical guide block to complete water exchange and oxygenation.
[0016] In a preferred embodiment, a fixing groove is movably connected to the outer surface of the extension tube, and an inflatable buoyancy machine is fixedly connected to the outer surface of the fixing groove.
[0017] By adopting the above technical solution, the extension pipe and the upper outlet pipe are inserted into the fixing groove, and the air pump inside the air buoyancy machine is used to adjust the buoyancy by inflating and deflating, which makes it convenient to adjust the operating height of the equipment.
[0018] In a preferred embodiment, a traction rope is fixedly connected to the upper surface of the inflatable buoyancy machine, and a fixing frame is fixedly connected to the outer surface of the inflatable buoyancy machine.
[0019] By adopting the above technical solutions, the towing rope facilitates the fixing of equipment on the shore, and the fixing frame facilitates the placement of pipes such as nanofilm tubes, ensuring the cleanliness of the equipment.
[0020] In a preferred embodiment, a power cord is provided on the outer surface of the high-pressure air pump, and a solar panel is provided on the outer surface of the end of the power cord away from the high-pressure air pump.
[0021] By adopting the above technical solution, the device's solar panels provide power on shore and power the high-pressure air pump via a power line. This unit is an optional unit under suitable conditions.
[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:
[0023] In this application, the nanomembrane tube is connected to the outside air and provides airflow under the action of a high-pressure air pump, generating a pressure difference. Air is output through the middle and periphery of the air outlet plate, pushing open the outer vertical rib ring and the balance plate. Under the action of the inner and outer vertical rib rings, the outer vertical rib ring and the balance plate can only move up and down. When the pressure is uneven, the limiting of the outer vertical rib ring and the balance plate compresses the air into other spaces, ensuring the uniformity and stability of the airflow. The air is pushed upward from the middle as a whole. Attached Figure Description
[0024] Figure 1 This is a front view of the device in this application;
[0025] Figure 2 This is a reverse view of the equipment in this application;
[0026] Figure 3 This is a disassembled schematic diagram of the overall structure of the equipment in this application;
[0027] Figure 4 This is a disassembled diagram of the suspension structure in this application;
[0028] Figure 5 This is a schematic diagram of the internal shape of the bidirectional threaded pipe in this application;
[0029] Figure 6 This is a schematic diagram of the internal structure of the air intake body shell in this application.
[0030] The markings in the diagram are: 1. High-pressure air pump; 2. Inlet main body shell; 3. Outlet plate; 4. Limiting frame; 5. Inner vertical grooved ring; 6. Outer vertical grooved ring; 7. Balance disc; 8. Air lifting cylinder main body; 9. Expansion disc; 10. Bidirectional threaded tube; 11. Guide block; 12. Vent pipe; 13. Spiral tube; 14. Extension tube; 15. Upper outlet pipe; 16. Umbrella-shaped water outlet cover; 17. Conical guide block; 18. Fixing groove; 19. Inflatable buoyancy machine; 20. Traction rope; 21. Fixing frame; 22. Power cord; 23. Solar panel; 24. Nanofilm tube. Detailed Implementation
[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0032] Example: Refer to Figure 1-4 A large-scale water surface airlift-type water propulsion and oxygenation device includes a high-pressure air pump 1, an air intake main shell 2 welded to the upper surface of the high-pressure air pump 1, an air outlet plate 3 provided on the upper surface of the air intake main shell 2, a limit frame 4 welded to the upper surface of the air intake main shell 2, an inner vertical ring 5 welded to the outer surface of the middle of the limit frame 4, an outer vertical ring 6 movably inserted into the inner surface of the inner vertical ring 5, a balance plate 7 welded to the lower surface of the outer vertical ring 6, and a nano-membrane tube 24 provided on the outer surface of the air intake main shell 2.
[0033] The nanofilm tube 24 is connected to the outside air and provides airflow under the action of the high-pressure air pump 1, generating a pressure difference. Air is output through the middle and periphery of the air outlet plate 3, pushing open the outer vertical ring 6 and the balance plate 7. Under the action of the inner vertical ring 5 and the outer vertical ring 6, the outer vertical ring 6 and the balance plate 7 can only move up and down. When the pressure is uneven, the limiting of the outer vertical ring 6 and the balance plate 7 compresses the air into other spaces, ensuring the uniformity and stability of the airflow. The air is pushed upward from the middle as a whole.
[0034] Reference Figure 1-4 The upper surface of the limiting frame 4 is welded with the air lifting cylinder body 8, and the lower outer surface of the air lifting cylinder body 8 is welded with the expansion plate 9.
[0035] The main body 8 of the air lifting cylinder serves as the main space for air lifting, facilitating the guidance of water flow for circulation. The expansion plate 9 expands outward to collect the outward-expanding air into the main body 8 of the air lifting cylinder.
[0036] Reference Figure 1-4 The upper inner surface of the air lifting cylinder body 8 is detachably connected to a bidirectional threaded pipe 10. A guide block 11 is welded to the middle outer surface of the bidirectional threaded pipe 10. An air vent 12 is provided on the inner surface between the bidirectional threaded pipe 10 and the guide block 11.
[0037] When the bidirectional threaded pipe 10 is used for overall air lifting propulsion, the water flow inside the air pipe 12 set by the bidirectional threaded pipe 10 and the guide block 11 is fast, which brings in the external water flow. Then, the water flow from the outside of the bidirectional threaded pipe 10 to the guide block 11 corresponding to the guide block 11 mixes with the water flow brought out by the air lifting cylinder body 8. Through the combination connection, it is convenient to carry out circulation operation on water flow layers at different heights.
[0038] Reference Figure 1-4 A spiral tube 13 is welded to the upper surface of the bidirectional threaded tube 10, and an extension tube 14 is detachably connected to the upper outer surface of the bidirectional threaded tube 10.
[0039] The external water flow is brought in and generates a vortex when it passes through the spiral tube 13, providing better propulsion.
[0040] Reference Figure 1-4 An upper outlet pipe 15 is detachably connected to the inner surface of the upper end of the extension pipe 14. An umbrella-shaped water outlet cover 16 is welded to the outer surface of the upper end of the upper outlet pipe 15. A conical guide block 17 is welded to the lower surface of the middle of the umbrella-shaped water outlet cover 16.
[0041] The extension pipe 14 facilitates the extension of the air lift distance. After reaching the upper outlet pipe 15, it is guided from the middle to the outside through the conical guide block 17 to complete water exchange and oxygenation.
[0042] Reference Figure 1-4 The outer surface of the extension tube 14 is movably connected to a fixing groove 18, and the outer surface of the fixing groove 18 is fixedly connected to an inflatable buoyancy machine 19.
[0043] The extension tube 14 and the upper outlet tube 15 are inserted into the fixing groove 18, and the air pump inside the air buoyancy machine 19 is used to inflate and deflate the air to adjust the buoyancy, so as to facilitate the adjustment of the equipment's working height.
[0044] Reference Figure 1-4 A traction rope 20 is fixedly connected to the upper surface of the inflatable buoyancy machine 19, and a fixing frame 21 is fixedly connected to the outer surface of the inflatable buoyancy machine 19.
[0045] The towing rope 20 facilitates the fixing of equipment on shore, and the fixing frame 21 facilitates the placement of pipes such as nanomembrane tubes 24, ensuring the cleanliness of the equipment.
[0046] Reference Figure 1-4 A power cord 22 is provided on the outer surface of the high-pressure air pump 1, and a solar panel 23 is provided on the outer surface of the end of the power cord 22 away from the high-pressure air pump 1.
[0047] The solar panel 23 provides power on shore and supplies power to the high-pressure air pump 1 via power line 22. This unit is an optional unit under suitable conditions.
[0048] The implementation principle of the large-scale water surface airlift-type water propulsion and oxygenation device of this application is as follows:
[0049] The solar panel 23 provides power on shore, which in turn powers the high-pressure air pump 1 via power line 22. This unit is an optional unit under suitable conditions. The nanofilm tube 24, connected to the outside air, provides airflow under the action of the high-pressure air pump 1, generating a pressure difference. Air is output through the center and periphery of the outlet plate 3, pushing open the outer vertical ring 6 and the balance plate 7. Under the action of the inner vertical ring 5 and the outer vertical ring 6, the outer vertical ring 6 and the balance plate 7 can only move up and down. When the pressure is uneven, the limiting of the outer vertical ring 6 and the balance plate 7 compresses the air into other spaces, ensuring the uniformity and stability of the airflow. The air as a whole is pushed upward from the center, and the expansion plate 9 expands outward to expand the air. The main body 8 of the air intake lifting cylinder is connected to the bidirectional threaded pipe 10. During the overall air lifting propulsion, the water flow velocity inside this position is fast, bringing in the external water flow. When passing through the spiral pipe 13, a vortex is generated, providing better propulsion. The extension pipe 14 facilitates the extension of the air lifting distance. After reaching the upper outlet pipe 15, it is guided from the middle to the outside by the conical guide block 17 to complete water exchange and oxygenation. The extension pipe 14 and the upper outlet pipe 15 are inserted into the fixing groove 18. The air pump inside the air buoyancy machine 19 adjusts the buoyancy by inflating and deflating the air, which facilitates the adjustment of the equipment's operating height. The traction rope 20 facilitates the fixing of the equipment on the shore. The fixing frame 21 facilitates the placement of pipes such as the nanofilm tube 24, ensuring the cleanliness of the equipment.
[0050] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. A large water surface gas stripping type water pushing and oxygen increasing device, comprising a high-pressure air pump (1), characterized in that: The high-pressure air pump (1) has an air intake body shell (2) welded on its upper surface. An air outlet plate (3) is provided on the upper surface of the air intake body shell (2). A limit frame (4) is welded on the upper surface of the air intake body shell (2). An inner vertical grooved ring (5) is welded on the outer surface of the middle of the limit frame (4). An outer vertical grooved ring (6) is movably inserted into the inner surface of the inner vertical grooved ring (5). A balance plate (7) is welded on the lower surface of the outer vertical grooved ring (6). A nano membrane tube (24) is provided on the outer surface of the air intake body shell (2).
2. The water surface gas pushing and oxygen increasing device according to claim 1, characterized in that: The upper surface of the limiting frame (4) is welded with an air lifting cylinder body (8), and the lower outer surface of the air lifting cylinder body (8) is welded with an expansion plate (9).
3. The water surface gas lift type water pushing and oxygen increasing device according to claim 2, characterized in that: The upper inner surface of the air lifting cylinder body (8) is detachably connected to a bidirectional threaded pipe (10), and a guide block (11) is welded to the middle outer surface of the bidirectional threaded pipe (10). A vent pipe (12) is provided on the inner surface between the bidirectional threaded pipe (10) and the guide block (11).
4. The water surface gas push type water increasing oxygen device according to claim 3, characterized in that: The upper surface of the bidirectional threaded tube (10) is welded with a spiral tube (13), and an extension tube (14) is detachably connected to the upper outer surface of the bidirectional threaded tube (10).
5. The water surface gas push type water increasing oxygen device according to claim 4, characterized in that: The upper inner surface of the extension tube (14) is detachably connected to the upper outlet tube (15), and the upper outer surface of the upper outlet tube (15) is welded with an umbrella-shaped water outlet cover (16), and the lower middle surface of the umbrella-shaped water outlet cover (16) is welded with a conical guide block (17).
6. A water surface gas lift type water pushing and oxygen increasing device according to claim 5, characterized in that: The outer surface of the extension tube (14) is movably connected to a fixing groove (18), and an air-filled buoyancy machine (19) is fixedly connected to the outer surface of the fixing groove (18).
7. The water surface gas push type water increasing oxygen device according to claim 6, characterized in that: The upper surface of the inflatable buoyancy machine (19) is fixedly connected with a traction rope (20), and the outer surface of the inflatable buoyancy machine (19) is fixedly connected with a fixing frame (21).
8. The water surface gas pushing and oxygen increasing device according to claim 1, characterized in that: The high-pressure air pump (1) has a power cord (22) on its outer surface, and a solar panel (23) is provided on the outer surface of the end of the power cord (22) away from the high-pressure air pump (1).