Fountain oxygenation device

Abstract

The utility model provides a fountain oxygenation device which comprises a mounting base arranged on the water surface through a suspension mechanism and an impeller water taking mechanism arranged on the mounting base, the impeller water taking mechanism comprises an impeller set and a driving motor used for driving the impeller set to rotate, and the suspension mechanism is an annular buoy. The annular buoy is fixed to the upper surface of the mounting base, a vertically-through flow guide hole is formed in the middle of the annular buoy, a vertically-through turbine cavity is formed in the middle of the mounting base, and the flow guide hole is coaxially formed above the turbine cavity and communicates with the turbine cavity; the driving motor is fixed to the bottom of the mounting base, and a rotating shaft extends upwards and is fixedly connected with the lower end of the impeller set. The fountain oxygenation device has the effect of synergistically improving the efficient oxygenation effect and the landscape effect.

Description

Technical Field

[0001] This utility model relates to the technical field of water oxygenation equipment, and more specifically, to a fountain oxygenation device. Background Technology

[0002] In high-density artificial aquaculture environments, oxygenation equipment is the core equipment for maintaining the ecological balance of the water body. It plays a key role in water purification and biological growth by increasing dissolved oxygen and promoting water circulation.

[0003] Currently, there are two main technical approaches to oxygenation devices on the market: Traditional fountain-style oxygenation pumps use a combination of a suction pump and a narrow-diameter nozzle to spray water. While this can create a fountain landscape of a certain height, the small nozzle outlet diameter significantly limits the water output per unit time, resulting in insufficient contact area between the water and air. Consequently, the actual oxygenation efficiency is insufficient to meet the needs of large-scale aquaculture. To overcome the flow bottleneck, some improved devices use a float-mounted impeller drive structure to generate mushroom-shaped water sprays with a larger diameter through high-speed rotation. Although this design can increase the water circulation volume per unit time, the water column height is generally less than 1 meter due to the radial upward flow and the lack of continuous vertical power. This not only weakens the visual appeal of the fountain but also affects the dissolved oxygenation efficiency due to the short gas-liquid mixing time. Of particular concern is that existing technologies generally suffer from the defect of functional simplification, either prioritizing landscape effects at the expense of oxygenation performance or pursuing oxygenation capacity while ignoring aesthetic value, making it difficult to achieve a synergistic improvement in ecological benefits and landscape effects. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a fountain oxygenation device that combines efficient oxygenation with synergistic enhancement of landscape effects.

[0005] To address the aforementioned problems, this utility model provides a fountain oxygenation device, comprising a mounting base suspended on the water surface via a suspension mechanism and an impeller water intake mechanism mounted on the mounting base. The impeller water intake mechanism includes an impeller assembly and a drive motor for driving the impeller assembly to rotate. The suspension mechanism is an annular float, which is fixed to the upper surface of the mounting base and has a vertically penetrating guide hole in its middle. The mounting base has a vertically penetrating turbine cavity in its middle. The guide hole is coaxially located above the turbine cavity and communicates with it. The impeller assembly is coaxially rotatably mounted inside the turbine cavity. The drive motor is fixed to the bottom of the mounting base and its rotation axis extends upward and is fixedly connected to the lower end of the impeller assembly.

[0006] Compared with existing technologies, this invention has the following advantages: Through the coordinated flow-guiding design of the annular float and the turbine cavity, it achieves a breakthrough improvement in gas-liquid mixing effect while enhancing water circulation efficiency. Specifically, the coaxial rotation of the impeller assembly within the turbine cavity generates a high-speed, vertically upward water flow. After being constrained by the guide holes, this forms a continuous water column with a controllable diameter, reaching a height of 1-2 meters and significantly extending its duration. This increases the water output per unit time while simultaneously improving dissolved oxygen efficiency by extending the contact time between the water column and air. The suspension design of the annular float not only effectively reduces equipment vibration during operation but also... The axially connected structure of the flow orifice and turbine cavity ensures the vertical stability of the water flow trajectory, avoiding the reduction in gas-liquid mixing efficiency caused by radial water flow dispersion in traditional impeller equipment. The closed structure of the turbine cavity, combined with the centrifugal effect of the impeller assembly, can create a secondary pressurization effect at the flow guide orifice, which not only enhances the jet kinetic energy of the water column, but also further expands the gas-liquid contact area through the umbrella-shaped water curtain generated when the water column falls. Through the innovative integration of fluid dynamics structure, this device achieves the dual technical effects of increasing dissolved oxygen and creating dynamic water features with the same energy consumption, and is especially suitable for landscape aquaculture water bodies that need to take into account both ecological benefits and landscape value.

[0007] As an improvement, the impeller assembly includes an impeller shaft and upper and lower blades spirally mounted on the shaft. The upper and lower blades have the same helical lift angle and are connected end-to-end along the axial direction of the impeller shaft. The drive motor shaft is fixedly connected to the lower end of the impeller shaft. This structure, through the continuous action of the double-segment helical blades, creates a progressive axial thrust in the turbine cavity, enhancing the uniformity and continuity of the water column's upward force. Simultaneously, it reduces the interference of water turbulence on the vertical jet trajectory, further increasing the water head height, thereby further extending the contact time between the water column and air, ultimately improving the dissolved oxygen efficiency.

[0008] As an improvement, the inner wall of the guide hole is a parabolic surface that gradually expands from bottom to top. With this structure, the gradually expanding parabolic surface, through its streamlined flow-guiding design, allows the high-speed water flow to gradually reduce its velocity and expand its diffusion angle during its ascent. This suppresses the dispersion phenomenon caused by sudden changes in kinetic energy at the top of the water column, and the parabolic curvature control creates an umbrella-shaped water curtain with a gradually changing diameter. This significantly increases the gas-liquid mixing area compared to traditional cylindrical guide holes, thereby further enhancing the water's oxygenation effect.

[0009] As an improvement, the top of the mounting base is equipped with a ring-shaped light strip coaxially embedded in the guide hole, with the luminous surface of the ring-shaped light strip facing the top opening of the guide hole. With this structure, the ring-shaped light strip, through axial light distribution and coupling with the guide water column, forms a continuous light refraction layer inside the water column. When running at night, it can transform the water column into a dynamic light source. While enhancing the landscape, its embedded structure avoids interference from external lighting equipment on the water flow trajectory.

[0010] As an improvement, the bottom of the mounting base is equipped with a removable filter cover. The filter cover has a mesh-like structure, and the drive motor is encapsulated within the internal cavity of the filter cover. This structure physically filters suspended solids in the water through the mesh-like structure, effectively preventing solid impurities from entering the impeller assembly and the gap between the drive motor shaft, reducing the risk of equipment jamming. The internal cavity of the filter cover provides full circumferential sealing protection for the drive motor. Its mesh aperture design ensures water flow while also preventing algae entanglement, significantly improving the operational stability of the equipment in complex water quality environments. The filter cover and the mounting base are detachably connected, allowing for quick removal of the filter cover from the mounting base, facilitating daily maintenance of the drive motor and impeller assembly.

[0011] As an improvement, the lower surface of the mounting base is provided with a threaded mounting hole that runs through the top and bottom. The threaded mounting hole is coaxially located below the guide hole and communicates with the guide hole. The upper outer peripheral wall of the filter cover is provided with a threaded connection part that is threaded into the threaded mounting hole. The inner side of the threaded connection part is coaxially provided with an outlet that communicates with the internal cavity of the filter cover. The turbine cavity is located in the outlet. The drive motor is fixedly connected to the internal cavity wall of the filter cover below the outlet. This structure enables quick assembly and disassembly of the water filter unit (including the integrated drive motor and impeller assembly) and the mounting base through the engagement of the threaded connection at the top of the filter hood with the threaded mounting holes of the mounting base. The modular design allows the drive motor, impeller assembly, and filter hood to form a pre-assembled whole, which can be disassembled simultaneously during maintenance without having to disassemble them one by one, greatly simplifying the maintenance process. The coaxial nesting characteristic of the threaded connection ensures that the outlet and turbine cavity are automatically aligned and calibrated during the installation of the filter hood, avoiding water flow path deviation caused by manual assembly errors. The internal cavity of the filter hood forms a stable support structure through the mechanical limiting of the threaded connection, ensuring the axial positioning accuracy of the impeller assembly during high-speed operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a perspective view of the present utility model;

[0014] Figure 3 This is a top view of the present invention;

[0015] Figure 4 for Figure 3 A cross-sectional view along line AA.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Mounting base; 10. Turbine cavity; 11. Threaded mounting hole; 2. Impeller assembly; 20. Impeller shaft; 21. Upper blade; 22. Lower blade; 3. Drive motor; 4. Annular float; 40. Guide hole; 5. Annular light strip; 6. Filter cover; 61. Threaded connection; 62. Water outlet. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 and Figure 2 As shown, a fountain oxygenation device includes a mounting base 1 suspended on the water surface by a suspension mechanism and an impeller water intake mechanism mounted on the mounting base 1. The impeller water intake mechanism includes an impeller assembly 2 and a drive motor 3 for driving the impeller assembly 2 to rotate. The suspension mechanism is an annular float 4, which is fixed to the upper surface of the mounting base 1 and has a vertically penetrating guide hole 40 in its middle. The mounting base 1 has a vertically penetrating turbine cavity 10 in its middle. The guide hole 40 is coaxially located above the turbine cavity 10 and communicates with the turbine cavity 10. The impeller assembly 2 is coaxially rotatably located inside the turbine cavity 10. The drive motor 3 is fixed to the bottom of the mounting base 1 and its rotation axis extends upward and is fixedly connected to the lower end of the impeller assembly 2.

[0020] This embodiment achieves a breakthrough improvement in gas-liquid mixing effect while enhancing water circulation efficiency through the coordinated flow guidance design of the annular float 4 and the turbine cavity 10. Specifically, the coaxial rotation of the impeller assembly 2 within the turbine cavity 10 generates a high-speed, vertically upward water flow. After being constrained by the flow guide hole 40, it forms a continuous water column with a controllable diameter, reaching a height of 1-2 meters and significantly extending its duration. This increases the water output per unit time while improving dissolved oxygen efficiency by extending the contact time between the water column and air. The suspension design of the annular float 4 not only effectively reduces equipment vibration during operation, but also achieves a breakthrough in gas-liquid mixing effect through the coordinated flow guidance hole 40 and the turbine cavity 10. The axial through-structure further ensures the vertical stability of the water flow trajectory, avoiding the reduction in gas-liquid mixing efficiency caused by radial water flow dispersion in traditional impeller equipment. The closed structure of the turbine cavity 10, combined with the centrifugal effect of the impeller assembly 2, can form a secondary pressurization effect at the guide hole 40, which not only enhances the jet kinetic energy of the water column, but also further expands the gas-liquid contact area through the umbrella-shaped water curtain generated when the water column falls. Through the innovative integration of fluid dynamics structure, this device achieves the dual technical effects of increasing dissolved oxygen and constructing dynamic water features with the same energy consumption, and is especially suitable for landscape aquaculture water bodies that need to take into account both ecological benefits and landscape value.

[0021] like Figure 3 and Figure 4As shown, the impeller assembly 2 includes an impeller shaft 20 and upper blades 21 and lower blades 22 spirally distributed on the impeller shaft 20. The upper blades 21 and lower blades 22 have the same helical lift angle and are connected end-to-end along the axial direction of the impeller shaft 20. The shaft of the drive motor 3 is fixedly connected to the lower end of the impeller shaft 20. This structure, through the continuous action of the double-segment helical blades, generates a progressive axial thrust in the water flow within the turbine cavity 10, enhancing the uniformity and continuity of the water column's upward force. Simultaneously, it reduces the interference of water flow turbulence on the vertical jet trajectory, further increasing the water flow head height, thereby further extending the contact time between the water column and air, ultimately further improving the dissolved oxygen efficiency.

[0022] Furthermore, the inner wall of the guide hole 40 is a parabolic surface that gradually expands from bottom to top. With this structure, the gradually expanding parabolic surface, through its streamlined flow-guiding design, allows the high-speed water flow to gradually reduce its velocity and expand its diffusion angle during its ascent. This suppresses the dispersion phenomenon caused by sudden changes in kinetic energy at the top of the water column, and the parabolic curvature control creates an umbrella-shaped water curtain with a gradually changing diameter. This significantly increases the gas-liquid mixing area compared to the traditional cylindrical guide hole 40, thereby further enhancing the water oxygenation effect.

[0023] like Figure 2 or Figure 3 As shown, the top of the mounting base 1 is equipped with a ring-shaped light strip 5 coaxially embedded in the guide hole 40, with the luminous surface of the ring-shaped light strip 5 facing the top opening of the guide hole 40. With this structure, the ring-shaped light strip 5, through axial light distribution and coupling with the guiding water column, forms a continuous light refraction layer inside the water column. During nighttime operation, it can transform the water column into a dynamic light source, enhancing the landscape while its embedded structure avoids interference from external lighting equipment on the water flow trajectory.

[0024] like Figure 2 or Figure 4 As shown, the bottom of the mounting base 1 is equipped with a detachable water filter cover 6. The water filter cover 6 has a mesh-like cover, and the drive motor 3 is encapsulated in the internal cavity of the water filter cover 6. This structure physically filters suspended solids in the water through the mesh-like cover, effectively preventing solid impurities from entering the impeller assembly 2 and the shaft gap of the drive motor 3, reducing the risk of equipment jamming. The internal cavity of the water filter cover 6 forms a full circumferential seal for the drive motor 3. Its mesh aperture design ensures water flow while also preventing algae entanglement, significantly improving the operational stability of the equipment in complex water quality environments. The water filter cover 6 and the mounting base 1 adopt a detachable connection design, allowing the water filter cover 6 to be quickly removed from the mounting base 1, facilitating daily maintenance of the drive motor 3 and the impeller assembly 2.

[0025] like Figure 4As shown, the lower surface of the mounting base 1 is provided with a threaded mounting hole 11 that runs through the top and bottom. The threaded mounting hole 11 is coaxially located below the guide hole 40 and communicates with the guide hole 40. The upper outer peripheral wall of the filter cover 6 is provided with a threaded connection part 61 that is threaded into the threaded mounting hole 11. The inner side of the threaded connection part 61 is coaxially provided with a water outlet 62 that communicates with the internal cavity of the filter cover 6. The turbine cavity 10 is located in the water outlet 62. The drive motor 3 is fixedly connected to the internal cavity wall of the filter cover 6 below the water outlet 62. This structure enables quick assembly and disassembly of the water filter 6 unit (including the integrated drive motor 3 and impeller assembly 2) and the mounting base 1 through the engagement of the upper threaded connection part 61 of the water filter 6 and the threaded mounting hole 11 of the mounting base 1. The modular design allows the drive motor 3, impeller assembly 2 and water filter 6 to form a pre-assembled whole, which can be disassembled simultaneously during maintenance without having to disassemble them one by one, greatly simplifying the maintenance operation process. The coaxial nesting characteristic of the threaded connection ensures that the outlet 62 and the turbine cavity 10 are automatically aligned and calibrated during the installation of the water filter 6, avoiding water flow path deviation caused by manual assembly errors. The internal cavity of the water filter 6 forms a stable support structure through the mechanical limiting of the threaded connection part 61, ensuring the axial positioning accuracy of the impeller assembly 2 during high-speed operation.

[0026] Furthermore, an oxygen generator is installed on the mounting base 1, with its outlet extending into the guide hole 40. With this structure, the oxygen generator injects micro-nano bubble clusters into the core area of ​​the rising water column, causing a vortex mixing effect between the gas and liquid phases within the guide hole 40. Combined with the kinetic energy of the water column, this forces the bubbles deeper into the water body, further increasing the dissolved oxygen concentration compared to purely mechanical aeration, thus achieving a synergistic effect between active oxygen supply and passive aeration.

[0027] Although the disclosure is as stated above, the scope of protection of this disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this utility model.

Claims

1. A fountain oxygenation device, comprising a mounting base (1) arranged on the water surface by a suspending mechanism and an impeller water taking mechanism arranged on the mounting base (1), the impeller water taking mechanism comprising an impeller set (2) and a driving motor (3) for driving the impeller set (2) to rotate, characterized in that: The suspension mechanism is a ring-shaped float (4) fixed to the upper surface of the mounting base (1) and having a flow guide hole (40) penetrating from top to bottom in the middle, the mounting base (1) has a turbine cavity (10) penetrating from top to bottom in the middle, the flow guide hole (40) is coaxially arranged above the turbine cavity (10) and communicates with the turbine cavity (10), the impeller set (2) is coaxially arranged in the turbine cavity (10), and the driving motor (3) is fixed to the bottom of the mounting base (1) and has a rotating shaft extending upward and fixedly connected with the lower end of the impeller set (2).

2. The fountain oxygenation device of claim 1, wherein: The impeller set (2) comprises an impeller shaft (20), upper blades (21) and lower blades (22) spirally arranged on the impeller shaft (20), the upper blades (21) and the lower blades (22) have the same helix angle and are connected end to end along the axial direction of the impeller shaft (20), and the rotating shaft of the driving motor (3) is fixedly connected with the lower end of the impeller shaft (20).

3. The fountain oxygenation device of claim 1, wherein: The inner wall surface of the flow guide hole (40) is a parabolic curved surface gradually expanding from bottom to top.

4. The fountain oxygenation apparatus of claim 1, wherein: The top of the mounting base (1) is provided with a ring-shaped light strip (5) coaxially embedded in the flow guide hole (40), and the light emitting surface of the ring-shaped light strip (5) is arranged towards the top opening of the flow guide hole (40).

5. The fountain oxygenation device of claim 1, wherein: The bottom of the mounting base (1) is provided with a detachable water filter cover (6), the water filter cover (6) has a grid-shaped cover body, and the driving motor (3) is packaged in the inner cavity of the water filter cover (6).

6. The fountain oxygenation device of claim 5, wherein: The lower surface of the mounting base (1) is provided with a threaded mounting hole (11) penetrating from top to bottom, the threaded mounting hole (11) is coaxially arranged below the flow guide hole (40) and communicates with the flow guide hole (40), the upper outer peripheral wall of the water filter cover (6) is provided with a threaded connecting portion (61) screwed into the threaded mounting hole (11), the inner side of the threaded connecting portion (61) is coaxially provided with a water outlet (62) communicating with the inner cavity of the water filter cover (6), the turbine cavity (10) is arranged in the water outlet (62), and the driving motor (3) is fixedly connected with the inner cavity wall of the water filter cover (6) below the water outlet (62).

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