A plug flow aeration device based on the airlift principle

By utilizing the principle of air lifting and the buoyancy-driven gas-liquid mixture, combined with solar energy and a fixed mechanism, the problem of existing push-flow aeration equipment being easily affected by water quality fluctuations has been solved. Stable and uniform gas distribution and liquid propulsion have been achieved, reducing equipment failure rate and maintenance difficulty.

CN224279967UActive Publication Date: 2026-05-26YUNNAN TRADING ECO-ENVIRONMENTAL ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN TRADING ECO-ENVIRONMENTAL ENG CO LTD
Filing Date
2025-05-09
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing propulsion aeration equipment is susceptible to water quality fluctuations and water level changes, has a high failure rate, is difficult to maintain, and relies on the blade structure which is prone to corrosion and plant entanglement.

Method used

Using the principle of air lifting, an air compressor injects gas into the lift pipe and mixes it with the liquid to form a gas-liquid mixture. The mixture is propelled by buoyancy and the position of the lift pipe is adjusted by a screw and gear mechanism. Combined with solar energy and a fixing mechanism, it floats stably and avoids mechanical impellers.

Benefits of technology

It achieves uniform gas distribution and liquid propulsion without the need for mechanical impellers. It has a simple structure, adapts to different water depths, has high stability, and reduces equipment failure rate and maintenance difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a propulsion aeration device based on the principle of airlift, relating to the field of wastewater treatment technology. It includes a floating plate, with an aeration mechanism on one side of the top of the floating plate. The aeration mechanism includes a fixed pipe connected to the floating plate. A sliding pipe is slidably connected to the inner wall of one end of the fixed pipe, and an air compressor is installed at the other end. In this utility model, through the arrangement of the aeration mechanism and the fixed mechanism, during use, the air compressor first starts, injecting gas into the lift pipe through the fixed pipe and the sliding pipe, causing the gas and liquid to mix and form a gas-liquid mixture. The density of the mixture decreases, and the less dense gas-liquid mixture moves upward under buoyancy, driving the surrounding liquid to flow, forming a circulation or directional propulsion flow. Thus, under the action of gravity, the liquid is lifted and transported, and discharged through the flow equalization hole. This device can evenly distribute gas into the liquid, forming fine bubbles.
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Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a push-flow aeration device based on the principle of airlift. Background Technology

[0002] A propulsion aeration device is a type of equipment that uses mechanical power to propel water flow while simultaneously introducing air into the water to increase dissolved oxygen levels. Combining the functions of propulsion and aeration, it allows oxygen to be transferred and mixed during water flow, thereby improving water quality. The equipment is typically equipped with propulsion components such as impellers and propellers, which rotate at high speed driven by a motor, generating propulsion force on the water and causing it to flow in a directional manner. Like a fan blowing air, it propels the surrounding water forward, creating a circulating flow throughout the water body. Air is then introduced into the water through aeration devices such as blowers.

[0003] However, existing equipment usually needs to operate in water, requiring complex electrical equipment to be placed in the water. Its performance is easily affected by water quality fluctuations, water level changes and other water environment factors, resulting in a high failure rate and difficult maintenance. At the same time, most of them rely on the blade structure for aeration and propulsion, which can cause problems such as corrosion and plant entanglement. Therefore, we propose a more convenient and practical propulsion aeration device to meet the usage requirements. Utility Model Content

[0004] The purpose of this invention is to provide a propulsion aeration device based on the principle of airlift, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a propulsion aeration device based on the airlift principle, comprising a floating plate, an aeration mechanism provided on one side of the top of the floating plate, the aeration mechanism comprising a fixed pipe, the fixed pipe being connected to the floating plate, a sliding pipe slidably connected to the inner wall of one end of the fixed pipe, and an air compressor installed at the other end, a lifting pipe fixedly connected to one end of the sliding pipe, a through hole opened on one side of the lifting pipe, an inlet pipe fixedly connected inside the through hole, a plurality of equidistant flow equalization holes opened on the outer wall of the top of the lifting pipe, and a fixing mechanism provided at the center of the top of the floating plate.

[0006] Furthermore, a propeller is installed on one side of the bottom of the floating board, a battery is installed on one side of the top of the floating board, a solar panel is installed on the other side, and airbags are installed on both sides of the bottom of the floating board.

[0007] Furthermore, a screw is rotatably connected to the top of the lifting tube, and the screw and the floating plate are slidably connected. A driven gear is threadedly connected to the outer wall of the screw, and the driven gear and the floating plate are rotatably connected.

[0008] Furthermore, a mounting bracket is provided on one side of the driven gear, and the mounting bracket is connected to the floating plate. A drive gear is rotatably connected to the bottom of the mounting bracket, and a servo motor is mounted on the top. The output end of the servo motor is connected to the drive gear, and the teeth of the drive gear and the driven gear mesh with each other.

[0009] Furthermore, the fixing mechanism includes a support frame connected to the floating plate, a take-up roller rotatably connected to one side of the support frame, and a locking motor installed on one side of the support frame, with the output end of the locking motor connected to the take-up roller.

[0010] Furthermore, the outer wall of the take-up roller is provided with a steel wire rope, and a counterweight is fixedly connected to one end of the steel wire rope.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This air-lift aeration device, based on the principle of air lifting, utilizes an aeration mechanism and a fixing mechanism. During operation, the air compressor first injects gas into the lift pipe through a fixed and sliding pipe. Simultaneously, liquid enters the lift pipe through the inlet pipe, mixing the gas and liquid to form a gas-liquid mixture. The lower density of this mixture causes it to rise under buoyancy, drawing surrounding liquid and creating a circulating or directional flow. This, combined with gravity, lifts and transports the liquid, which is then discharged through a flow equalization hole. Finally, a servo motor on the mounting frame drives a drive gear, which in turn drives a driven gear, causing a screw to move the lift pipe up and down, adjusting its position. This device can evenly distribute gas into the liquid, forming fine bubbles and achieving air lifting and flow propulsion. It eliminates the need for a mechanical impeller, has a simple structure, is highly practical, and is suitable for widespread application.

[0013] At the same time, the fixing mechanism enables the device to float more stably in the water, preventing it from drifting due to water flow or other external forces. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the aeration mechanism of this utility model;

[0016] Figure 3 This is a schematic diagram of the fixing mechanism of this utility model.

[0017] In the diagram: 1. Floating plate; 2. Propeller; 3. Battery; 4. Solar panel; 5. Aeration mechanism; 501. Fixed pipe; 502. Sliding pipe; 503. Air compressor; 504. Lifting pipe; 505. Water inlet pipe; 506. Flow equalization hole; 507. Screw; 508. Driven gear; 509. Mounting bracket; 510. Drive gear; 511. Servo motor; 6. Fixing mechanism; 601. Support frame; 602. Take-up roller; 603. Locking motor; 604. Steel wire rope; 605. Counterweight; 7. Airbag. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the process of sewage treatment, a propulsion aeration equipment is required. The propulsion aeration equipment provided by this utility model is specifically used for sewage aeration operations in the sewage treatment process. When using this equipment for aeration operations, operators should be familiar with the equipment's usage methods and safe operating procedures, wear appropriate personal protective equipment, and avoid contact with rotating parts or high-voltage circuits during equipment operation. During aeration operations, sewage quality indicators, such as dissolved oxygen content and pH value, should be monitored regularly to ensure that the aeration effect meets the predetermined requirements. Regular maintenance of the equipment should be performed, cleaning debris from the propeller 2 and aeration mechanism 5, and inspecting and replacing severely worn parts to extend the service life of the equipment.

[0020] like Figures 1-3 As shown, this utility model provides a technical solution: a propulsion aeration device based on the airlift principle, including a floating plate 1, an aeration mechanism 5 is provided on one side of the top of the floating plate 1, the aeration mechanism 5 includes a fixed pipe 501, the fixed pipe 501 is connected to the floating plate 1, a sliding pipe 502 is slidably connected to the inner wall of one end of the fixed pipe 501, and an air compressor 503 is installed at the other end, a lifting pipe 504 is fixedly connected to one end of the sliding pipe 502, a through hole is opened on one side of the lifting pipe 504, a water inlet pipe 505 is fixedly connected in the through hole, a plurality of equidistant flow equalization holes 506 are opened on the outer wall of the top of the lifting pipe 504, a fixed mechanism 6 is provided at the center of the top of the floating plate 1, a propeller 2 is installed on one side of the bottom of the floating plate 1, a battery 3 is installed on one side of the top of the floating plate 1, a solar panel 4 is installed on the other side, and airbags 7 are installed on both sides of the bottom of the floating plate 1.

[0021] like Figure 2As shown, a screw 507 is rotatably connected to the top of the lifting pipe 504. The screw 507 and the floating plate 1 are slidably connected. A driven gear 508 is threadedly connected to the outer wall of the screw 507. The driven gear 508 and the floating plate 1 are rotatably connected. A mounting bracket 509 is provided on one side of the driven gear 508. The mounting bracket 509 and the floating plate 1 are connected. A drive gear 510 is rotatably connected to the bottom of the mounting bracket 509. A servo motor 511 is installed on the top. The output end of the servo motor 511 is connected to the drive gear 510. The teeth of the drive gear 510 and the driven gear 508 mesh with each other.

[0022] It should be noted that during use, the air compressor 503 first starts and injects gas into the riser pipe 504 through the fixed pipe 501 and the sliding pipe 502. During this process, liquid enters the riser pipe 504 through the water inlet pipe 505, forming a gas-liquid mixture. The density of the mixture decreases, and the less dense gas-liquid mixture moves upward under the action of buoyancy, driving the surrounding liquid to flow, forming a circulation or directional flow. Thus, the liquid is lifted and transported under the action of gravity and discharged through the equalization hole 506. Finally, the servo motor 511 on the mounting bracket 509 drives the drive gear 510 to rotate, which in turn drives the driven gear 508 to rotate, causing the screw 507 to move the riser pipe 504 up and down, adjusting the position of the riser pipe 504. The aeration mechanism 5 can adjust the height of the riser pipe 504 according to actual needs, thereby adapting to the aeration requirements of water bodies at different depths.

[0023] like Figure 3 As shown, the fixing mechanism 6 includes a support frame 601, which is connected to the floating plate 1. A winding roller 602 is rotatably connected to one side of the support frame 601. A locking motor 603 is installed on one side of the support frame 601. The output end of the locking motor 603 is connected to the winding roller 602. A wire rope 604 is provided on the outer wall of the winding roller 602. A counterweight 605 is fixedly connected to one end of the wire rope 604.

[0024] It should be noted that during use, when the entire device is powered by the solar panel 4 and the battery 3, and the propeller 2 is started, the floating plate 1 is moved by the airbag 7. The locking motor 603 installed on the support frame 601 drives the winding roller 602 to rotate, thereby driving the wire rope 604 to wind up and adjust the position of the counterweight 605. The fixing mechanism 6 can make the device float more stably in the water and prevent the device from drifting due to water flow or other external forces.

[0025] During operation, the propeller 2 starts, moving the floating plate 1 to the designated position via the airbag 7. The locking motor 603 mounted on the support frame 601 drives the winding roller 602 to rotate, causing the wire rope 604 to wind up and adjust the position of the counterweight 605. Then, the air compressor 503 starts, injecting gas into the lifting pipe 504 through the fixed pipe 501 and the sliding pipe 502. During this process, liquid enters the lifting pipe 504 through the water inlet pipe 505, forming a gas-liquid mixture, which is discharged through the equalization hole 506. Finally, the servo motor 511 on the mounting frame 509 drives the drive gear 510 to rotate, which in turn drives the driven gear 508 to rotate, causing the screw 507 to move the lifting pipe 504 up and down, adjusting the position of the lifting pipe 504. This device can evenly distribute gas into the liquid, forming fine bubbles and achieving air lifting and propulsion without the need for a mechanical impeller, resulting in a simple structure.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A push-flow aeration device based on the principle of gas stripping comprising a floating plate, characterized in that: An aeration mechanism is provided on one side of the top of the floating plate. The aeration mechanism includes a fixed pipe, which is connected to the floating plate. A sliding pipe is slidably connected to the inner wall of one end of the fixed pipe, and an air compressor is installed at the other end. A lifting pipe is fixedly connected to one end of the sliding pipe. A through hole is opened on one side of the lifting pipe, and a water inlet pipe is fixedly connected to the through hole. Multiple equidistant flow equalization holes are opened on the outer wall of the top of the lifting pipe. A fixing mechanism is provided at the center of the top of the floating plate.

2. A push-flow aeration device based on the principle of gas stripping according to claim 1, characterized in that: A propeller is installed on one side of the bottom of the floating board, a battery is installed on one side of the top of the floating board, a solar panel is installed on the other side, and airbags are installed on both sides of the bottom of the floating board.

3. The propulsion aeration device based on the airlift principle according to claim 1, characterized in that: The top of the lifting pipe is rotatably connected to a screw, which is slidably connected to the floating plate. A driven gear is threadedly connected to the outer wall of the screw, which is rotatably connected to the floating plate.

4. The propulsion aeration device based on the airlift principle according to claim 3, characterized in that: A mounting bracket is provided on one side of the driven gear, and the mounting bracket is connected to the floating plate. A drive gear is rotatably connected to the bottom of the mounting bracket, and a servo motor is installed on the top. The output end of the servo motor is connected to the drive gear, and the teeth of the drive gear and the driven gear mesh.

5. The propulsion aeration device based on the airlift principle according to claim 1, characterized in that: The fixing mechanism includes a support frame connected to a floating plate. A take-up roller is rotatably connected to one side of the support frame, and a locking motor is installed on one side of the support frame. The output end of the locking motor is connected to the take-up roller.

6. The propulsion aeration device based on the airlift principle according to claim 5, characterized in that: The outer wall of the take-up roller is provided with a steel wire rope, and a counterweight is fixedly connected to one end of the steel wire rope.