Automatic pulse type micro-nano bubble aerator based on cross structure
Through the automatic pulsed micro-nano bubble aerator based on the cross structure, the combination technology of micro-bubble and flexible aeration sheet is used to solve the impact problem of large bubble aerating on the microbial membrane, achieving efficient sewage treatment and stain removal, and improving the sewage treatment efficiency.
Patent Information
- Application Number
- CN202421038150.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The large bubble aeration device in the existing sewage treatment system provides oxygen while causing physical impact on the microbial membrane, affecting the treatment effect. Especially when water volume fluctuates in scenic spots, high-speed service areas and other scenarios, it requires higher aeration efficiency, but The prior art is difficult to avoid damage to microbial membranes.
Using a cross-structure automatic pulsed micro-nano bubble aerator, micro-bubble is generated through the intake pipe and aeration device, and using multiple flexible aerators to achieve unpowered automatic pulse aerator under high air pressure, generating a large number of micro-bubbles. The microbial membrane provides oxygen and removes stains through pulsed erosion to avoid physical damage.
It realizes efficient oxygen supply and stain removal for microbial membranes, maintains high sewage treatment efficiency, and avoids physical damage to microbial membranes.
Smart Images
Figure CN222250247U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sewage treatment aeration equipment, in particular to an automatic pulse micro-nano bubble aerator based on a cross structure. Background Art
[0002] Biofilm wastewater treatment is a wastewater treatment technology based on the principle of biodegradation. It forms a biofilm by growing and breeding microorganisms on a specific carrier to remove organic pollutants in wastewater. The biofilm method has the following characteristics:
[0003] Formation of biofilm: Microorganisms in sewage attach, grow and reproduce on the surface of the filler to form a layer of biofilm. The filler usually adopts a cross-section structure similar to lotus root to provide sufficient surface area for microbial growth. Treatment process: When sewage flows through the filler, the microorganisms on the biofilm remove organic pollutants in the water through adsorption, degradation and oxidation to achieve the purpose of purifying water quality. This process is similar to the purification effect of aquatic plants in natural water bodies. The advantages are that it has a strong adaptability to changes in sewage quality and water volume, produces less residual sludge, and can treat high-concentration sewage.
[0004] The sewage treatment system using the biofilm method can cope with sewage treatment in scenic spots, highway service areas and other scenarios. During specific treatment, a large number of microbial films are mounted on the microbial fillers in the biochemical treatment pool. The microbial bacteria on the microbial films efficiently perform biochemical treatment on the sewage. The microbial bacteria need to consume a large amount of oxygen in the process of sewage treatment. Therefore, an aeration device is generally installed on the bottom or side wall of the biochemical treatment pool for aeration and oxygen supply.
[0005] The Chinese utility model patent with publication number CN109336248A discloses an aeration system for a biochemical sewage treatment pool. A plurality of first aeration pipes distributed on the surface of a drum can aerate the sewage in the pool body. The sewage nozzle can introduce the air in the drum from the air inlet pipe into the mixing chamber. The mixing chamber contains sewage entering through a diffusion pipe. The sewage is fully in contact with the air, and the mixed water vapor is then ejected from the diffusion pipe to increase the oxygen content in the sewage and provide sufficient oxygen for the microorganisms in the pool body.
[0006] When there is a demand for sewage treatment with large fluctuations in water volume during holidays in scenes such as scenic spots and highway service areas, in order to obtain higher sewage treatment efficiency, the amount of microbial film is usually increased, which requires more aeration to match the oxygen consumption. The aeration devices in the prior art will produce large bubbles during aeration. These large bubbles will cause physical impact on the microbial film while providing sufficient oxygen to the microbial film, thus affecting the sewage treatment effect. Utility Model Content
[0007] In order to solve the above technical problems, the utility model provides an automatic pulse micro-nano bubble aerator based on a cross structure. The following technical solutions are adopted:
[0008] An automatic pulse micro-nano bubble aerator based on a cross structure comprises an integrated micro-bubble aeration component and a pulse aeration component based on a cross structure, wherein the integrated micro-bubble aeration component comprises an air inlet pipe and an aeration device, wherein the air inlet end of the air inlet pipe is connected to a high-pressure air source, wherein the aeration device comprises a connecting section and an aeration hood, wherein the connecting section is connected to an air outlet end of the air inlet pipe, wherein a pulse aeration region is arranged in the middle of the aeration hood, wherein a plurality of micro-nano-scale micro-bubble aeration holes are evenly distributed on the aeration hood, wherein the pulse aeration component comprises a plurality of flexible aeration sheets, wherein the plurality of flexible aeration sheets are located in the pulse aeration region of the aeration hood, wherein a plurality of micro-bubble aeration holes having the same size and density as the aeration hood are arranged on the flexible aeration sheets, wherein one end of the flexible aeration sheet is connected to the aeration hood, and the other end is freely closed.
[0009] By adopting the above technical solution, in order to ensure the treatment effect of the microbial membrane in the sewage biochemical treatment pool, aeration is required. Under normal circumstances, aeration is performed using a large bubble aeration device. This aeration method will cause physical impact damage to the microbial membrane due to long-term large bubbles.
[0010] A plurality of automatic pulse micro-nano bubble aerators based on a cross structure can be used to aerate the sewage biochemical treatment pool. The structure of the automatic pulse micro-nano bubble aerator based on a cross structure is based on the aeration device set on the air inlet pipe to perform basic microbubble aeration. In a normal state, the plurality of flexible aeration sheets will close and cover the pulse aeration area of the aeration hood due to the inherent strength of the material and gravity. Therefore, the aeration hood and the plurality of flexible aeration sheets can be regarded as a whole. The plurality of microbubble aeration holes evenly distributed thereon perform a large amount of microbubble aeration under the high air pressure of the air inlet, and the large amount of microbubbles generated are mixed in the water to provide sufficient oxygen for the microbial membrane.
[0011] In order to remove stains on the surface of the microbial membrane, pulsed bubbles are also needed for appropriate impact. During the operation of the automatic pulsed micro-nano bubble aerator, when the multiple flexible aeration sheets are closed, the air pressure under the aeration hood continues to increase until the multiple flexible aeration sheets are pushed open. Then, a large amount of aeration can be carried out through the gaps between the multiple flexible aeration sheets to flush the stains on the surface of the microbial membrane. After flushing, the multiple flexible aeration sheets are closed again. This repeated process achieves unpowered automatic pulse aeration. The pulsed aeration has a large amount of short-term impact on the surface of the microbial membrane, will not cause physical damage to the microbial membrane, will flush away the stains on the surface of the microbial membrane, and enable the microbial membrane to maintain a high sewage treatment efficiency.
[0012] Optionally, when the multiple flexible aeration sheets are closed, the air intake of the air intake pipe is less than the total aeration amount of the multiple microbubble aeration holes on the aeration hood and the multiple flexible aeration sheets.
[0013] By adopting the above technical solution, the air intake of the air intake pipe is smaller than the total aeration amount of the multiple microbubble aeration holes on the aeration hood and the multiple flexible aeration sheets. When the multiple flexible aeration sheets are closed, the air pressure under the aeration hood increases continuously, thereby realizing pulse large bubble aeration.
[0014] Optionally, the multiple flexible aeration sheets are cut from a piece of circular flexible material. When the air pressure in the aeration hood is lower than a set threshold, the multiple flexible aeration sheets are naturally closed in the pulse aeration area of the aeration hood. When the air pressure in the aeration hood is higher than the set threshold, the multiple flexible aeration sheets are opened by high pressure to perform pulse large bubble aeration.
[0015] Optionally, the plurality of flexible aeration sheets are made of silicone or rubber material.
[0016] By adopting the above technical solution, in order to enable multiple flexible aeration sheets to be lifted up by air pressure, a round flexible material is cut and made, specifically, a whole round piece of silicone or rubber plate is cut and made. In order to control the pulse time, the material, thickness and air intake of the flexible aeration sheet can be adjusted.
[0017] Optionally, the number of the flexible aeration sheets is four, and when the four flexible aeration sheets are closed, the seams form a cross shape.
[0018] By adopting the above technical solution, four flexible aeration sheets can form a cross-shaped structure. When large bubble pulse aeration is performed, a larger area above can be covered, which is a better choice.
[0019] Optionally, the microbubble aeration holes have a pore size of 50 μm-200 μm.
[0020] By adopting the above technical solution, micron-sized microbubble aeration holes are used for microbubble aeration, and the bubbles are uniform, thus avoiding physical damage to the microbial membrane.
[0021] In summary, the present invention includes at least one of the following beneficial technical effects:
[0022] The utility model can provide an automatic pulse micro-nano bubble aerator based on a cross structure. The structure is based on the aeration device arranged on the air inlet pipe to perform basic micro-bubble aeration. In a normal state, the multiple flexible aeration sheets will close and cover the pulse aeration area of the aeration cover due to the inherent strength of the material and gravity. The multiple micro-bubble aeration holes evenly distributed thereon perform a large amount of micro-bubble aeration under the high air pressure of the air inlet. The large amount of micro-bubbles generated are mixed in the water to provide sufficient oxygen for the microbial membrane.
[0023] During the operation of the automatic pulse micro-nano bubble aerator, the air pressure under the aeration hood increases continuously until the multiple flexible aeration sheets are pushed open. Then, a large amount of aeration can be carried out through the gaps between the multiple flexible aeration sheets to flush the stains on the surface of the microbial membrane. After flushing, the multiple flexible aeration sheets are closed again. This repeated cycle achieves unpowered automatic pulse aeration. The pulsed aeration has a large and short-term impact on the surface of the microbial membrane, which will not cause physical damage to the microbial membrane, but will flush away the stains on the surface of the microbial membrane, allowing the microbial membrane to maintain a high sewage treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 This is a schematic diagram of the structural principle of the automatic pulse micro-nano bubble aerator based on a cross structure of the utility model;
[0025] Figure 2 It is a schematic diagram of the top view of the structural principle of the automatic pulse micro-nano bubble aerator based on a cross structure of the utility model.
[0026] Explanation of the reference numerals: 1. air inlet pipe; 2. aeration device; 21. connecting section; 22. aeration hood; 221. microbubble aeration hole; 3. flexible aeration sheet. DETAILED DESCRIPTION
[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0028] The utility model embodiment discloses an automatic pulse type micro-nano bubble aerator based on a cross structure.
[0029] Reference Figure 1 and Figure 2 Embodiment 1, an automatic pulse micro-nano bubble aerator based on a cross structure, including an integrated micro-bubble aeration component and a pulse aeration component based on a cross structure, the integrated micro-bubble aeration component including an air inlet pipe 1 and an aeration device 2, the air inlet end of the air inlet pipe 1 is connected to a high-pressure air source, the aeration device 2 includes a connecting section 21 and an aeration hood 22, the connecting section 21 is connected to an air outlet end of the air inlet pipe 1, a pulse aeration area is provided in the middle of the aeration hood 22, a plurality of micro-nano-scale micro-bubble aeration holes 221 are uniformly distributed on the aeration hood 22, the pulse aeration component includes a plurality of flexible aeration sheets 3, the plurality of flexible aeration sheets 3 are located in the pulse aeration area of the aeration hood 22, a plurality of micro-bubble aeration holes 221 having the same size and density as the aeration hood 22 are provided on the flexible aeration sheet 3, one end of the flexible aeration sheet 3 is connected to the aeration hood 22, and the other end is freely closed.
[0030] In order to ensure the treatment effect of the microbial membrane in the sewage biochemical treatment pool, aeration is required. Under normal circumstances, aeration is carried out using a large bubble aeration device. This aeration method will cause physical impact damage to the microbial membrane if the large bubbles are used for a long time.
[0031] A plurality of automatic pulse micro-nano bubble aerators based on a cross structure can be used to aerate the sewage biochemical treatment pool. The structure of the automatic pulse micro-nano bubble aerator based on a cross structure is based on the aeration device 2 set on the air inlet pipe to perform basic microbubble aeration. In a normal state, the plurality of flexible aeration sheets 3 will close and cover the pulse aeration area of the aeration cover 22 due to the inherent strength of the material and gravity. Therefore, the aeration cover 22 and the plurality of flexible aeration sheets 3 can be regarded as a whole. The plurality of microbubble aeration holes 221 evenly distributed thereon perform a large amount of microbubble aeration under the high air pressure of the air inlet, and the large amount of microbubbles generated are mixed in the water to provide sufficient oxygen for the microbial membrane.
[0032] In order to remove the stains on the surface of the microbial membrane, pulsed bubbles are also needed for appropriate impact. During the operation of the automatic pulsed micro-nano bubble aerator, when the multiple flexible aeration sheets 3 are closed, the air pressure below the aeration hood 22 continues to increase until the multiple flexible aeration sheets 3 are pushed open. Then, a large amount of aeration can be carried out through the gaps between the multiple flexible aeration sheets 3 to flush the stains on the surface of the microbial membrane. After flushing, the multiple flexible aeration sheets 3 are closed again. This repeated process achieves unpowered automatic pulse aeration. The pulsed aeration forms a large number of short-term impacts on the surface of the microbial membrane, will not cause physical damage to the microbial membrane, will flush away the stains on the surface of the microbial membrane, and enable the microbial membrane to maintain a high sewage treatment efficiency.
[0033] In Example 2, when the multiple flexible aeration sheets 3 are closed, the air intake of the air intake pipe 1 is less than the total aeration amount of the multiple microbubble aeration holes 221 on the aeration cover 22 and the multiple flexible aeration sheets 3 .
[0034] The air intake of the air intake pipe 1 is smaller than the total aeration amount of the aeration hood 22 and the multiple microbubble aeration holes 221 on the multiple flexible aeration sheets 3. When the multiple flexible aeration sheets 3 are closed, the air pressure below the aeration hood 22 continues to increase, thereby achieving pulse large bubble aeration.
[0035] In Example 3, the multiple flexible aeration sheets 3 are cut from a piece of circular flexible material. When the air pressure in the aeration hood 22 is lower than the set threshold, the multiple flexible aeration sheets 3 are naturally closed in the pulse aeration area of the aeration hood 22. When the air pressure in the aeration hood 22 is higher than the set threshold, the multiple flexible aeration sheets 3 are opened by high pressure to perform pulse large bubble aeration.
[0036] In embodiment 4, the plurality of flexible aeration sheets 3 are made of silicone or rubber.
[0037] In order to enable the multiple flexible aeration sheets 3 to be lifted up by air pressure, a round flexible material is cut and made, specifically, a whole round silicone or rubber plate is cut and made. In order to control the pulse time, the material, thickness and air intake of the flexible aeration sheet 3 can be adjusted.
[0038] In Example 5, the number of the flexible aeration sheets 3 is four. When the four flexible aeration sheets 3 are closed, the seams form a cross shape.
[0039] Four flexible aeration sheets 3 can form a cross-shaped structure, which can cover a larger area above during large bubble pulse aeration, and is a better choice.
[0040] In Example 6, the pore size of the microbubble aeration holes 221 is 50 μm-200 μm.
[0041] Micron-sized microbubble aeration holes are used for microbubble aeration, and the bubbles are evenly distributed to avoid physical damage to the microbial membrane.
[0042] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.
Claims
1. Automatic pulse micro-nano bubble aerator based on a cross structure, characterized by: The invention comprises an integrated microbubble aeration component and a pulse aeration component based on a cross structure, wherein the integrated microbubble aeration component comprises an air inlet pipe (1) and an aeration device (2), wherein the air inlet end of the air inlet pipe (1) is connected to a high-pressure air source, the aeration device (2) comprises a connecting section (21) and an aeration cover (22), the connecting section (21) is connected to the air outlet end of the air inlet pipe (1), a pulse aeration area is provided in the middle of the aeration cover (22), a plurality of microbubble aeration holes (221) of micro-nano scale are uniformly distributed on the aeration cover (22), and the pulse aeration component comprises a plurality of flexible aeration sheets (3), the plurality of flexible aeration sheets (3) are located in the pulse aeration area of the aeration cover (22), a plurality of microbubble aeration holes (221) of the same size and density as the aeration cover (22) are provided on the flexible aeration sheet (3), one end of the flexible aeration sheet (3) is connected to the aeration cover (22), and the other end is freely closed.
2. The automatic pulse micro-nano bubble aerator based on a cross structure according to claim 1 is characterized in that: When the multiple flexible aeration sheets (3) are closed, the air intake of the air intake pipe (1) is less than the total aeration amount of the multiple micro-bubble aeration holes (221) on the aeration cover (22) and the multiple flexible aeration sheets (3).
3. The automatic pulse micro-nano bubble aerator based on a cross structure according to claim 1 is characterized in that: The plurality of flexible aeration sheets (3) are cut from a circular flexible material. When the air pressure in the aeration hood (22) is lower than a set threshold, the plurality of flexible aeration sheets (3) are naturally closed in the pulse aeration area of the aeration hood (22). When the air pressure in the aeration hood (22) is higher than the set threshold, the plurality of flexible aeration sheets (3) are opened by high pressure to perform pulse large bubble aeration.
4. The automatic pulse micro-nano bubble aerator based on a cross structure according to claim 1 is characterized in that: The plurality of flexible aeration sheets (3) are made of silica gel or rubber.
5. The automatic pulse micro-nano bubble aerator based on a cross structure according to claim 1 is characterized in that: The number of the flexible aeration sheets (3) is four. When the four flexible aeration sheets (3) are closed, the seams form a cross shape.
6. The automatic pulse micro-nano bubble aerator based on a cross structure according to claim 1 is characterized in that: The pore diameter of the microbubble aeration hole (221) is 50 μm-200 μm.
Citation Information
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