Micro-nano aeration device

Abstract

The micro-nano aeration device comprises an aeration pipe, a vortex structure, a jet flow structure and a spring piece, the vortex structure, the jet flow structure and the aeration pipe are sequentially communicated in the water flow direction, an air inlet is formed in the side edge of the jet flow structure, and a water outlet is formed in the end, away from the jet flow structure, of the aeration pipe; one end of the leaf spring is positioned at the water outlet end of the jet flow structure, and the other end of the leaf spring is fixed at the other end of the aeration pipe. Sewage sequentially passes through the water inlet, the vortex structure and the jet flow structure, so that negative pressure is generated at the air inlet, air is sucked into the aeration pipe, micro-nano bubbles are preliminarily formed under the action of huge shearing force of water flow and then collide with the spring piece to form bubbles with smaller particle sizes, a large number of micro-nano-scale bubbles are generated at the water outlet, and the micro-nano-scale bubbles are formed. Therefore, the oxygen utilization rate and the sewage treatment efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of aeration equipment technology, specifically to a micro-nano aeration device. Background Technology

[0002] Currently, the coverage rate of urban and rural domestic sewage in my country is increasing. Domestic sewage contains organic matter, nitrogen, and phosphorus, causing serious pollution to groundwater and surface water, necessitating sewage treatment. Biological sewage treatment generally employs aeration technology, injecting oxygen into the sewage to promote microbial growth and metabolism, thereby degrading organic matter and removing nitrogen and phosphorus. Common aeration types used in wastewater treatment include microporous aeration, tubular aeration, and cyclone aeration. However, all of these suffer from low oxygen utilization, low sewage treatment efficiency, and difficulties in maintenance and replacement. Utility Model Content

[0003] The purpose of this invention is to design a micro-nano aeration device that can achieve high oxygen utilization, is not prone to clogging, and is easy to maintain and replace, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a micro-nano aeration device is provided, comprising an aeration pipe, a vortex structure, a jet structure, and a spring plate. The vortex structure has a water inlet, and the vortex structure, the jet structure, and the aeration pipe are connected sequentially along the water flow direction. The jet structure has an air inlet on its side, and the aeration pipe has a water outlet at its end away from the jet structure. One end of the spring plate is located at the water outlet of the jet structure, and the other end of the spring plate is fixed to the other end of the aeration pipe.

[0005] Furthermore, the water inlet is connected to a high-pressure water pump.

[0006] Furthermore, the aeration pipe, the vortex structure, and the jet structure are connected by threads.

[0007] Furthermore, a limiter is installed between the aeration pipe and the jet structure.

[0008] Furthermore, an adjustment mechanism is installed at the end of the aeration pipe away from the vortex structure, and the adjustment mechanism is connected to the spring plate.

[0009] Furthermore, the adjusting mechanism includes an adjusting block and a fixing block. The adjusting block is threadedly connected to the aeration pipe, the fixing block is mounted on the adjusting block, and the spring plate is mounted on the fixing block.

[0010] Furthermore, the end of the adjusting block furthest from the fixed block is connected to the aeration pipe by bolts.

[0011] Furthermore, the fixing block is connected to the spring plate by screws.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention incorporates a vortex structure, a jet structure, and spring plates. Wastewater passes sequentially through the inlet, vortex structure, and jet structure, creating negative pressure at the air inlet and drawing air into the aeration pipe. Under the immense shear force of the water flow, micro-nano bubbles are initially formed. These bubbles then collide with the spring plates, creating even smaller bubbles. This results in a large number of micro-nano-level bubbles at the outlet, thereby improving oxygen utilization and wastewater treatment efficiency. Furthermore, the overall installation is convenient, allowing it to be placed directly next to the tank, reducing the length of the aeration pipes. Maintenance and cleaning are also convenient, reducing maintenance costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] The names of the components shown in the diagram are as follows:

[0018] 1. Aeration pipe; 2. Vortex structure; 3. Jet structure; 4. Spring plate; 5. Water inlet; 6. Air inlet; 7. Water outlet; 8. Limiter; 9. Adjustment mechanism; 10. Adjustment block; 11. Fixing block; 12. Bolt; 13. Screw. Detailed Implementation

[0019] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0020] Example: Reference Figure 1-2A micro / nano aeration device includes an aeration pipe 1, a vortex structure 2, a jet structure 3, and a spring plate 4. One end of the vortex structure 2 has a water inlet 5, which is connected to a high-pressure water pump. The high-pressure water pump is used to pump sewage into the water inlet 5 of the micro / nano aeration device. The vortex structure 2, jet structure 3, and aeration pipe 1 are sequentially connected along the water flow direction. The aeration pipe 1, jet structure 3, and vortex structure 2 are connected by threads, facilitating installation and replacement and reducing maintenance costs. An air inlet 6 is provided on the side of the jet structure 3. The vortex structure 2 adopts a spiral or annular guiding structure. Through the design of guide vanes or inner wall grooves, it forces the water flow tangentially to form a high-speed rotating vortex. The turbulence effect initially mixes and shears the water flow, providing a basis for the subsequent generation of micro / nano bubbles. The jet structure 3 employs a tapered-expanding flow channel. The cross-section of the tapered section gradually decreases, accelerating the wastewater flow velocity; the throat, being the area with the smallest cross-sectional area, experiences the highest flow velocity and strongest negative pressure. The cross-section of the expanding section gradually increases, reducing the flow velocity and promoting gas-liquid mixing. The air inlet 6, located downstream of the throat in the expanding section, draws in air through negative pressure; that is, it utilizes the Venturi effect to generate negative pressure to draw in air, and achieves gas-liquid mixing through hydraulic shearing. The spring plate 4 is a flexible spring plate, capable of secondary breaking up the bubbles at the outlet of the jet structure 3, ultimately forming micro-nano-sized bubbles. This invention utilizes the principles of hydraulic shearing and resonance to generate micro-nano-sized bubbles, thereby reducing energy consumption.

[0021] A limiter 8 is installed between the aeration pipe 1 and the jet structure 3. The limiter 8 can position the jet structure 3, ensuring that it is in an accurate installation position, and ensuring that the sewage passes through the vortex and jet device sequentially according to the designed path. When the water flow interacts with components such as the air inlet 6 and the spring plate 4, micro-nano bubbles can be stably generated. At the same time, it prevents the jet device from shifting under the impact and vibration of the water flow, ensuring the stability and consistency of the internal flow channel of the aeration pipe 1, and maintaining the stability and reliability of the bubble generation process. An outlet 7 is opened at the end of the aeration pipe 1 away from the jet structure 3. One end of the spring plate 4 is located at the outlet end of the jet structure 3, and the other end of the spring plate 4 is fixed to the other end of the aeration pipe 1.

[0022] An adjustment mechanism 9 is installed at the end of the aeration pipe 1 furthest from the vortex structure 2. The adjustment mechanism 9 includes an adjustment block 10 and a fixing block 11. The adjustment block 10 is threadedly connected to the aeration pipe 1, and the fixing block 11 is mounted on the adjustment block 10. A spring plate 4 is mounted on the fixing block 11. The distance between the spring plate 4 and the jet structure 3 can be adjusted via the adjustment block 10. The fixing block 11 is connected to the spring plate 4 via screws 13, which allows adjustment of the tension of the spring plate 4, improving the bubble breaking efficiency. Adjusting the length and tension of the spring plate 4 ensures that a large number of micro-nano-level bubbles are generated in the effluent. The end of the adjustment block 10 furthest from the fixing block 11 is connected to the aeration pipe 1 via bolts 12, further fixing the adjustment block 10 in a certain position.

[0023] The working principle of this utility model is as follows: Before sewage treatment, the regulating mechanism 9 and aeration pipe 1, jet structure 3 and vortex structure 2 are connected in sequence. The length and tightness of the spring plate 4 are adjusted, and then the regulating block 10 is fixed. The high-pressure water pump is connected to the inlet 5. Sewage is then pumped into the inlet 5 of the micro-nano aeration device through the high-pressure water pump. It passes through the vortex structure 2 and jet structure 3 in sequence, generating negative pressure at the air inlet 6 and drawing air into the aeration pipe 1. Under the huge shear force of the water flow, preliminary micro-nano bubbles are formed. These bubbles collide with the spring plate 4 again, forming even smaller micro-nano bubbles. Finally, they flow out from the outlet 7. This improves oxygen utilization and sewage treatment efficiency. Micro-nano aeration has the advantages of small bubbles, long bubble residence time, and low oxygen utilization. The overall installation is convenient and can be placed directly next to the tank, reducing the length and setup of the aeration pipe 1. It is also less prone to clogging, easy to maintain and clean, and reduces maintenance costs, which is beneficial to the stable operation of the biological aeration and sewage treatment system.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "upper," "lower," "left," "right," "front," "back," and similar expressions used in this document are for illustrative purposes only.

[0025] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A micro / nano aeration device, characterized in that: The aeration tube (1), vortex structure (2), jet structure (3), and spring plate (4) are included. The vortex structure (2) has an inlet (5). The vortex structure (2), the jet structure (3), and the aeration tube (1) are connected in sequence along the water flow direction. The jet structure (3) has an air inlet (6) on its side. The aeration tube (1) has an outlet (7) at one end away from the jet structure (3). One end of the spring plate (4) is located at the outlet end of the jet structure (3), and the other end of the spring plate (4) is fixed to the other end of the aeration tube (1).

2. The micro / nano aeration device according to claim 1, characterized in that: The water inlet (5) is connected to the high-pressure water pump.

3. The micro / nano aeration device according to claim 1, characterized in that: The aeration pipe (1), the vortex structure (2), and the jet structure (3) are connected by threads.

4. The micro / nano aeration device according to claim 1, characterized in that: A limiter (8) is installed between the aeration pipe (1) and the jet structure (3).

5. The micro / nano aeration device according to claim 1, characterized in that: An adjustment mechanism (9) is installed at the end of the aeration pipe (1) away from the vortex structure (2), and the adjustment mechanism (9) is connected to the spring plate (4).

6. The micro / nano aeration device according to claim 5, characterized in that: The adjustment mechanism (9) includes an adjustment block (10) and a fixing block (11). The adjustment block (10) is threadedly connected to the aeration pipe (1). The fixing block (11) is mounted on the adjustment block (10). The spring plate (4) is mounted on the fixing block (11).

7. The micro / nano aeration device according to claim 6, characterized in that: The end of the adjusting block (10) away from the fixed block (11) is connected to the aeration pipe (1) by a bolt (12).

8. The micro / nano aeration device according to claim 6, characterized in that: The fixing block (11) is connected to the spring plate (4) by screws (13).

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