A micro / nano bubble generator for wastewater treatment

Abstract

This utility model discloses a micro / nano bubble generator for wastewater treatment, relating to the field of water pollution control technology. It includes a housing, a pull rod, and a ceramic perforated plate. The pull rod is disposed on the side of the housing, and a groove is formed in the side wall of the housing. A square block is disposed in the groove. In this utility model, the insertion holes on both sides of the ceramic perforated plate are adapted to the extended ends of the square blocks. The insertion rod is inserted into the insertion holes for initial fixation. A tension spring between the housing and the square blocks provides elastic tension. An elliptical elastic ring, in conjunction with a reset component, forms a buffer. When there is gas-liquid impact or pressure fluctuation, the tension spring extends and retracts to buffer, the elastic ring retracts and resets, and the insertion rod slides to maintain a stable connection between the ceramic perforated plate and the housing, ensuring the normal generation of micro / nano bubbles. The above structure enhances the connection stability between the internal components and the housing, resists impact and pressure fluctuations, and reduces component displacement, vibration, or loosening.

Description

Technical Field

[0001] This utility model relates to the field of water pollution control technology, specifically to a micro-nano bubble generator for wastewater treatment. Background Technology

[0002] Micro-nano bubble generators for wastewater treatment are devices that produce tiny bubbles with diameters in the micro-nano range. Through specific physical or chemical methods, they disperse gases such as air or ozone into the wastewater, forming a large number of tiny bubbles. These micro-nano bubbles have the characteristics of large specific surface area, long residence time, and high mass transfer efficiency, which can fully contact the pollutants in the wastewater. Through oxidation, adsorption, flotation and other processes, they can effectively remove pollutants such as organic matter, suspended solids, and odors from the water, thereby improving wastewater treatment efficiency. They are suitable for various wastewater treatment scenarios such as industrial wastewater and domestic sewage, and are a highly efficient wastewater purification auxiliary device.

[0003] In the field of wastewater treatment, the use of micro-nano bubble generators to treat oily and particulate wastewater has become an important technical means. The core of this technology is to disperse gas into micro-nano bubbles through a specific structure, and then separate pollutants through the adsorption and mass transfer effects of these bubbles. However, the internal structural design of existing micro-nano bubble generators often has defects. For example, the connection stability between internal components, such as bubble generating elements and flow guiding structures, and the shell is insufficient. Under the continuous impact and pressure fluctuations of the gas-liquid mixture, components are prone to displacement, vibration, or loosening, leading to decreased bubble generation efficiency and uneven size distribution. This, in turn, affects the gas-liquid mixing effect and pollutant separation efficiency. Furthermore, long-term unstable operation can exacerbate equipment wear and shorten its service life, making it difficult to meet the demands of continuous and efficient wastewater treatment. Utility Model Content

[0004] The purpose of this invention is to provide a micro / nano bubble generator for wastewater treatment, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a micro / nano bubble generator for wastewater treatment, including a shell, a pull rod, and a ceramic perforated plate. The pull rod is disposed on the side of the shell, and a groove is formed on the side wall of the shell. A square block is disposed on the groove. A tension spring, a bellows, an elastic ring, a reset member, and an insertion rod are disposed between the shell and the square block. The insertion rod extends out of one side of the square block. The ceramic perforated plate has insertion holes on both sides that are adapted to the extended end of the square block. The elastic ring is elliptical in shape. The reset member is disposed on the elastic ring. The insertion rod is slidably disposed on the shell.

[0006] Furthermore, the two ends of the bellows are closed, the bellows is sleeved outside the tension spring and the insert rod, and the two ends of the bellows block the opening on the housing where the insert rod is slidably disposed.

[0007] Furthermore, the elastic ring and the reset component are made of spring steel.

[0008] Furthermore, the shell is provided with receiving plates on both sides, and the ceramic perforated plate overlaps the top of the receiving plates.

[0009] Furthermore, the side wall of the housing is provided with an air inlet pipe and a drain outlet, the drain outlet being located above the ceramic perforated plate and the air inlet pipe being located below the ceramic perforated plate.

[0010] Furthermore, a drain port is provided on one side of the housing, and a valve is provided on the drain port, which is located below the ceramic perforated plate.

[0011] Furthermore, the air intake pipe is equipped with an air volume meter and a regulating valve.

[0012] Furthermore, the interior of the shell is provided with a guide plate, and the shell is provided with an oil collection tank and a water outlet weir.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, the ceramic perforated plate is adapted to the square block through the insertion hole, the insertion rod is inserted and positioned, the tension spring provides tension to make the square block fit against the ceramic perforated plate, the elliptical elastic ring and the reset part form elastic support, the slight sliding displacement of the insertion rod ensures no loose gap, when gas-liquid impact or pressure fluctuation, the tension spring and the elastic ring work together to offset the impact force, maintain the fit between the insertion rod and the insertion hole, fix the position of the ceramic perforated plate, enhance the connection stability between the internal components and the shell, resist impact and pressure fluctuation, reduce displacement, vibration or loosening, maintain the efficiency and size uniformity of bubble generation, ensure the gas-liquid mixing and pollutant separation effect, reduce equipment wear, extend service life, meet the needs of continuous and efficient wastewater treatment, and solve the problem of insufficient connection stability of existing equipment.

[0015] 2. In this utility model, the corrugated pipe is closed at both ends and sleeved on the outside of the tension spring and the insertion rod, which can prevent wastewater from entering and corroding both, thus extending their service life. At the same time, its two ends block the opening of the insertion rod on the shell, preventing wastewater leakage and the entry of external impurities, ensuring smooth sliding of the insertion rod, maintaining a stable connection between the ceramic perforated plate and the shell, and ensuring the reliable operation of the micro-nano bubble generator. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the connection structure between the shell and the guide plate in this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the square block and the tension spring in this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the elastic ring and the reset component in this utility model;

[0020] Figure 5 for Figure 2 Enlarged view of the structure at point A in the middle.

[0021] In the diagram: 1. Housing; 2. Tie rod; 3. Ceramic perforated plate; 4. Square block; 5. Tension spring; 6. Bellows; 7. Elastic ring; 8. Reset component; 9. Insert rod; 10. Receiving plate; 11. Inlet pipe; 12. Guide plate; 13. Oil collection trough; 14. Drain outlet. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-5 This utility model provides a technical solution:

[0024] See Figures 1-5 The present invention discloses a micro / nano bubble generator for wastewater treatment, comprising a housing 1, a pull rod 2, and a ceramic perforated plate 3. The pull rod 2 is disposed on the side of the housing 1, and a groove is formed on the side wall of the housing 1. A square block 4 is disposed on the groove. A tension spring 5, a bellows 6, an elastic ring 7, a reset member 8, and an insertion rod 9 are disposed between the housing 1 and the square block 4. The insertion rod 9 extends out of one side of the square block 4. The ceramic perforated plate 3 has insertion holes on both sides that are adapted to the extended ends of the square block 4. The elastic ring 7 is elliptical in shape. The reset member 8 is disposed on the elastic ring 7. The insertion rod 9 is slidably disposed on the housing 1.

[0025] The ceramic orifice plate 3 is adapted to the extended end of the square block 4 through the insertion holes on both sides. The insertion rod 9 is inserted into the insertion hole to achieve initial positioning. The tension spring 5 between the housing 1 and the square block 4 provides continuous elastic tension, so that the square block 4 fits tightly against the ceramic orifice plate 3. The elliptical elastic ring 7 and the reset piece 8 form an elastic support structure. When the insertion rod 9 slides along the housing 1, it only produces a small displacement, ensuring that there is no loose gap between the ceramic orifice plate 3 and the housing 1. When the gas-liquid mixture impacts or the pressure fluctuates, the tension of the tension spring 5 and the supporting force of the elastic ring 7 work together to offset the impact force, maintain the tight fit between the insertion rod 9 and the insertion hole, and ensure that the installation position of the ceramic orifice plate 3 remains fixed.

[0026] Through the synergistic action of the tension spring 5, elastic ring 7, reset component 8, and insertion rod 9, the connection stability between the internal components such as the ceramic orifice plate 3 and the shell 1 is enhanced. This effectively resists the continuous impact and pressure fluctuations of the gas-liquid mixture, reducing component displacement, vibration, or loosening. This allows the ceramic orifice plate 3 to stably perform its gas dispersion function, helping to maintain the generation efficiency of micro-nano bubbles and making the bubble size distribution more uniform, thereby ensuring the gas-liquid mixing effect and pollutant separation efficiency. At the same time, the stable connection of the components reduces mutual friction caused by loosening, reduces equipment wear, and extends service life. This meets the needs of continuous and efficient wastewater treatment and solves various problems caused by insufficient connection stability in existing equipment.

[0027] See Figure 5 The two ends of the bellows 6 are closed. The bellows 6 is sleeved outside the tension spring 5 and the insert rod 9. The two ends of the bellows 6 block the opening on the housing 1 where the insert rod 9 is slidably set.

[0028] The corrugated pipe 6 is closed at both ends and sleeved on the outside of the tension spring 5 and the insertion rod 9. This prevents wastewater from entering the interior of the corrugated pipe 6, avoids corrosion of the tension spring 5 and the insertion rod 9 by wastewater, and extends their service life. At the same time, the corrugated pipe 6 blocks the opening on the housing 1 where the insertion rod 9 is slidably mounted. This prevents wastewater from leaking out of the housing 1 through the opening, keeping the surrounding environment of the equipment dry and clean. It also prevents external impurities from entering the interior of the housing 1 and affecting the normal operation of the tension spring 5 and the insertion rod 9. This ensures that the insertion rod 9 slides smoothly on the housing 1, maintains the stability of the connection between the ceramic perforated plate 3 and the housing 1, and ensures the reliable operation of the micro-nano bubble generator.

[0029] See Figure 4 The elastic ring 7 and the reset piece 8 are made of spring steel.

[0030] The elastic ring 7 and the reset component 8 are made of spring steel, which has a high elastic limit and good fatigue resistance. Under the continuous impact and pressure fluctuation of the gas-liquid mixture, it can maintain its elastic deformation ability for a long time and is not prone to plastic deformation or fracture, thus ensuring the stability of its buffering and reset functions. The spring steel material also has strong corrosion resistance, which can resist the erosion of chemicals in wastewater, extend the service life of the elastic ring 7 and the reset component 8, reduce the loosening or failure of components due to material damage, thereby maintaining the reliability of the connection between the ceramic orifice plate 3 and the shell 1 and ensuring the efficient operation of the micro-nano bubble generator.

[0031] See Figure 1 The housing 1 has a support plate 10 on both sides, and the ceramic perforated plate 3 overlaps the top of the support plate 10.

[0032] The receiving plates 10 on both sides of the housing 1 provide support for the ceramic perforated plate 3, allowing it to be stably attached to the top of the receiving plate 10, preventing the ceramic perforated plate 3 from sagging or shifting due to its own weight or the impact of the gas-liquid mixture. This support structure disperses the force on the ceramic perforated plate 3, reduces the pressure it bears locally, lowers the risk of breakage due to uneven force, and extends the service life of the ceramic perforated plate 3. At the same time, the setting of the receiving plate 10 provides a positioning reference for the installation of the ceramic perforated plate 3, which facilitates the alignment of the insertion rod 9 with the insertion hole, improves installation efficiency, ensures the connection accuracy between the ceramic perforated plate 3 and the housing 1, and maintains the stable operation of the micro-nano bubble generator.

[0033] See Figure 1-2 The side wall of the housing 1 is provided with an air inlet pipe 11 and a drain outlet 14. The drain outlet 14 is located above the ceramic perforated plate 3, and the air inlet pipe 11 is located below the ceramic perforated plate 3.

[0034] The air inlet pipe 11 is located below the ceramic perforated plate 3, which allows the gas to disperse and form micro-nano bubbles through the pores of the ceramic perforated plate 3 after entering the housing 1, thereby improving the bubble generation efficiency and uniformity and enhancing the gas-liquid mixing effect. The drain port 14 is located above the ceramic perforated plate 3, which facilitates the discharge of pollutants such as floating oil and solid particle aggregates after bubble adsorption and separation from the housing 1, reducing the accumulation of pollutants in the housing 1, avoiding affecting the bubble generation function of the ceramic perforated plate 3, and ensuring the continuous and stable operation of the equipment.

[0035] See Figure 1-2 A drain port 14 is provided on one side of the housing 1, and a valve is provided on the drain port 14. The drain port 14 is located below the ceramic perforated plate 3.

[0036] The drain port 14 on one side of the housing 1 is located below the ceramic perforated plate 3, which facilitates the discharge of heavier solid particles or impurities deposited at the bottom of the housing 1, reducing their obstruction to the air outlet 11 below the ceramic perforated plate 3 and the generation of bubbles. The valve on the drain port 14 can control the timing and amount of discharge, preventing wastewater or gas from leaking from the drain port 14 during non-discharge periods, ensuring stable pressure inside the housing 1 during normal operation, maintaining bubble generation efficiency, reducing wear caused by impurity accumulation, and extending service life.

[0037] See Figure 1-2 An air volume meter and a regulating valve are installed on the air intake pipe 11.

[0038] The gas meter on the inlet pipe 11 can reflect the amount of gas entering the housing 1 in real time, making it convenient for operators to understand the gas input status. The regulating valve can adjust the gas flow rate according to the actual wastewater treatment situation, so that the gas volume is matched with the bubble generation requirements of the ceramic orifice plate 3. This avoids excessive gas causing bubble aggregation or insufficient gas affecting bubble generation efficiency, helps maintain the stable generation of micro-nano bubbles, ensures gas-liquid mixing effect, improves the separation effect of pollutants in wastewater, and adapts to different wastewater treatment scenarios.

[0039] See Figure 1 The shell 1 is equipped with a guide plate 12 inside, and an oil collection tank 13 and a water outlet weir are provided on the shell 1.

[0040] The guide plate 12 inside the shell 1 can guide the wastewater to flow in an orderly manner within the shell 1, prolonging the contact time between the wastewater and the micro-nano bubbles, and improving the adsorption effect of pollutants. The oil collection tank 13 can collect the floating oil carried to the water surface by the bubbles, reducing the discharge of oil pollutants with the treated wastewater. The effluent weir can make the treated wastewater flow out smoothly, ensuring uniform effluent, which helps to improve the overall wastewater treatment effect and meet the wastewater purification requirements.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A micro-nano bubble generator for wastewater treatment, comprising a shell (1), a pull rod (2), and a ceramic orifice plate (3), characterized in that: A pull rod (2) is provided on the side of the housing (1). The side wall of the housing (1) is provided with a groove, and a square block (4) is provided on the groove. A tension spring (5), a bellows (6), an elastic ring (7), a reset member (8), and a plug (9) are provided between the housing (1) and the square block (4). The plug (9) extends out of one side of the square block (4). The ceramic perforated plate (3) is provided with insertion holes on both sides that are adapted to the extension end of the square block (4). The elastic ring (7) is elliptical in shape. The reset member (8) is provided on the elastic ring (7). The plug (9) is slidably provided on the housing (1).

2. The micro-nano bubble generator for wastewater treatment according to claim 1, characterized in that: The two ends of the bellows (6) are closed. The bellows (6) is sleeved on the outside of the tension spring (5) and the insert rod (9). The two ends of the bellows (6) block the opening of the insert rod (9) which is slidably disposed on the housing (1).

3. The micro-nano bubble generator for wastewater treatment according to claim 2, wherein: The elastic ring (7) and the reset member (8) are made of spring steel.

4. The micro-nano bubble generator for wastewater treatment according to claim 3, characterized in that: The housing (1) is provided with support plates (10) on both sides, and the ceramic perforated plate (3) overlaps the top of the support plate (10).

5. The micro-nano bubble generator for wastewater treatment according to claim 4, wherein: The side wall of the housing (1) is provided with an air inlet pipe (11) and a drain outlet (14). The drain outlet (14) is located above the ceramic perforated plate (3), and the air inlet pipe (11) is located below the ceramic perforated plate (3).

6. The micro-nano bubble generator for wastewater treatment according to claim 5, wherein: A drain port (14) is provided on one side of the housing (1), and a valve is provided on the drain port (14). The drain port (14) is located below the ceramic perforated plate (3).

7. The micro-nano bubble generator for wastewater treatment according to claim 6, wherein: The air intake pipe (11) is equipped with an air meter and a regulating valve.

8. The micro-nano bubble generator for wastewater treatment according to claim 7, characterized in that: The shell (1) is provided with a guide plate (12) inside, and an oil collection tank (13) and a water outlet weir are provided on the shell (1).

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