Grouping type self-cleaning aeration fluidization system

Abstract

The invention provides a grouping type self-cleaning aeration fluidization system, and relates to the technical field of sewage treatment aeration, the grouping type self-cleaning aeration fluidization system comprises a dissolved oxygen sensor, an intelligent control box, a fan and a grouping type aeration module; the intelligent control box comprises an equipment power distribution module, an equipment control protection module, a PLC control module, a cloud box Internet of Things gateway module and a data acquisition module. The grouped aeration module comprises a plurality of groups of aeration units; the aeration unit comprises a plurality of independent microporous hoses, hose fixing brackets and butterfly valves; the dissolved oxygen sensor is connected with the PLC control module; the PLC control module, the fan and the grouped aeration module are connected in sequence; the PLC control module is connected with the butterfly valve; and the PLC control module is used for controlling the opening and closing of the butterfly valve according to the dissolved oxygen concentration, so as to carry out self-cleaning and start and stop of the grouped aeration module. Directional water flow can be formed, full-tank aeration and full-tank fluidization are achieved, sludge accumulation at the bottom of the tank is avoided, and the sludge suspension and oxygen transmission efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment aeration technology, and in particular to a grouped self-cleaning aeration system. Background Technology

[0002] The group-type self-cleaning aeration gasification system is an innovative technology for wastewater treatment that divides aerators into multiple groups. In this system, each aeration group automatically cleans itself as needed, thus avoiding the clogging problems common in traditional systems. The group design also makes system maintenance more flexible and allows for optimization based on the operating conditions of different areas.

[0003] Aeration systems are prone to clogging by sludge and sediment during long-term operation. It is necessary to introduce a grouped design and self-cleaning function to automatically clean the aerators, reduce the frequency of manual maintenance, and extend the service life of the equipment. At the same time, the system can be adjusted according to actual needs in different areas to maintain a stable aeration effect, effectively improving oxygen transfer efficiency and sewage treatment capacity.

[0004] However, traditional aeration systems (such as disc aerators) cannot flexibly switch between ultra-low and ultra-high loads, which can easily lead to over-aeration or insufficient oxygen supply. After long-term operation, the flux of microporous hoses will decrease due to sludge adhesion and biofilm growth, requiring frequent manual cleaning and resulting in high maintenance costs. Traditional aeration systems are usually in a single aeration mode, making it difficult to achieve full-pool sludge fluidization, and sludge is prone to accumulate at the bottom of the pool. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the purpose of this invention is to provide a grouped self-cleaning aeration fluidization system, which can solve the problems of traditional aeration systems (such as disc aerators) being unable to flexibly switch between ultra-low and ultra-high loads, easily leading to over-aeration or insufficient oxygen supply, and the flux reduction caused by sludge adhesion and biofilm growth after long-term operation of microporous hoses, requiring frequent manual cleaning and resulting in high maintenance costs. Traditional aeration systems are usually single aeration modes, making it difficult to achieve full-pool sludge fluidization and causing sludge accumulation at the bottom of the pool.

[0006] In a first aspect, the present invention provides a grouped self-cleaning aeration gasification system, comprising: a dissolved oxygen sensor, an intelligent control box, a blower, and a grouped aeration module; The intelligent control box includes a power distribution module, a control and protection module, a PLC control module, a cloud box IoT gateway module, and a data acquisition module. The grouped aeration module includes multiple groups of aeration units; The aeration unit includes multiple independent microporous hoses, hose fixing brackets, and butterfly valves; The dissolved oxygen sensor is connected to the PLC control module. The dissolved oxygen sensor is used to obtain the dissolved oxygen concentration of the water and feed it back to the PLC control module. The PLC control module, the blower, and the grouped aeration module are connected in sequence. The PLC control module is used to control the operation of the fan according to the dissolved oxygen concentration; The fan is used to transmit air to the grouped aeration module; The PLC control module is connected to the butterfly valve; The PLC control module is used to control the opening and closing of the butterfly valve according to the dissolved oxygen concentration, and to perform self-cleaning and start / stop the grouped aeration module.

[0007] Furthermore, it also includes: the pool body; The aeration units are evenly distributed within the pool. The dissolved oxygen sensor is located at the end of the aeration zone of the pool and is used to obtain the dissolved oxygen concentration of the water in the pool.

[0008] Furthermore, the spacing between each of the aeration units is 0.2-2m.

[0009] Furthermore, it also includes: multiple manual valves; The manual valve is connected to the aeration unit; Each of the manual valves corresponds one-to-one with each of the aeration units.

[0010] Furthermore, it also includes: an air distributor; The air distributor is located outside the pool body; The air distributor is used to evenly distribute the air supplied by the fan into each of the individual microporous hoses, maintaining the dissolved oxygen concentration within the target concentration range.

[0011] Furthermore, it also includes: air supply pipes; Each of the butterfly valves is connected to the main air pipe; The main air pipe, the butterfly valve connection, and the independent microporous hose are connected in sequence; The main air supply pipe is used to deliver air to the butterfly valve; The butterfly valve is used to adjust the switch according to the instructions of the PLC control module to distribute the air into the independent microporous hose.

[0012] Furthermore, the independent microporous hose is parallel to the hose fixing bracket.

[0013] Furthermore, the butterfly valve is connected to the aeration unit; Each butterfly valve corresponds to one of the aeration units.

[0014] Furthermore, controlling the operation of the fan based on the dissolved oxygen concentration specifically includes: Determine the current water load; When the water load is high, the PLC control module controls the operation of the fan based on the real-time dissolved oxygen concentration; When the dissolved oxygen value is less than the preset dissolved oxygen value, the fan is controlled to operate at high frequency until the dissolved oxygen concentration is greater than or equal to the preset dissolved oxygen value. When the dissolved oxygen value is greater than the preset dissolved oxygen value, the fan is controlled to operate at low frequency until the dissolved oxygen concentration is less than the preset dissolved oxygen value. When the water load is at normal load, a first dissolved oxygen value is determined. When the first dissolved oxygen value is less than the preset dissolved oxygen value, the fan is controlled to run at high frequency until the dissolved oxygen value is greater than or equal to the set value. When the first dissolved oxygen value is greater than the preset dissolved oxygen value, the fan is controlled to run at low frequency for a preset time, and a second dissolved oxygen value is determined. When the second dissolved oxygen value is less than the preset dissolved oxygen value, the fan is controlled to run at high frequency until the dissolved oxygen value is greater than or equal to the set value. When the second dissolved oxygen value is greater than the preset dissolved oxygen value, the fan is controlled to run at low frequency for a preset time to determine the third dissolved oxygen value. When the water load is low, the PLC control module controls the fan to run at low frequency and groups the butterfly valves to obtain multiple electric / pneumatic butterfly valve combinations. Set the streaming duration; When the dissolved oxygen value is less than the preset dissolved oxygen value, the PLC control module controls all valves in the combination to open. When the dissolved oxygen value is greater than the preset dissolved oxygen value, the PLC control module controls the valves in the combination to run for the fluidization time in sequence.

[0015] Furthermore, the self-cleaning specifically includes: The butterfly valves are grouped to obtain multiple butterfly valve combinations; Set the self-cleaning duration; The PLC control module controls each butterfly valve combination to open or close sequentially according to a preset time interval.

[0016] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: In this embodiment of the invention, the system consists of a dissolved oxygen sensor, an intelligent control box, a variable frequency blower, and a grouped aeration module. These components are precisely connected to achieve highly coordinated operation. The dissolved oxygen sensor is installed at the bottom of the tank, monitoring the oxygen concentration in the water in real time and feeding it back to the PLC control module. The PLC dynamically adjusts the blower speed and butterfly valve opening / closing based on the collected data, thereby achieving precise control of aeration intensity and airflow. This intelligent and adaptive adjustment allows for flexible control of the aeration unit's start and stop according to the wastewater load, avoiding over-aeration or insufficient oxygen supply, significantly reducing energy consumption. The aeration system has a self-cleaning function, effectively flushing the microporous hoses through a timed switch, reducing blockages, lowering maintenance costs, and extending the operating cycle. The aeration unit, combined with the grouped start / stop strategy and airflow adjustment, can form a directional water flow, achieving full-tank fluidization, preventing sludge accumulation at the bottom of the tank, and improving sludge suspension and oxygen transfer efficiency. Attached Figure Description

[0017] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of a grouped self-cleaning aeration system provided in an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1-tank body; 2-aeration unit; 21-hose fixing bracket; 22-manual valve; 23-air distributor; 3-dissolved oxygen sensor; 4-butterfly valve; 5-main air pipe; 6-fan; 7-PLC control module. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0021] Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts disclosed in this invention.

[0022] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention.

[0023] Reference manual attached Figure 1 The diagram shows a structural schematic of a grouped self-cleaning aeration system provided in an embodiment of the present invention.

[0024] The present invention provides a structure for a grouped self-cleaning aeration gasification system, comprising: a dissolved oxygen sensor 3, an intelligent control box, a blower 6, and a grouped aeration module.

[0025] The intelligent control box includes a power distribution module, a control and protection module, a PLC control module, a cloud box IoT gateway module, and a data acquisition module.

[0026] The grouped aeration module includes multiple aeration units 2.

[0027] The aeration unit 2 includes multiple independent microporous hoses, hose fixing brackets 21, and butterfly valves 4, including electric butterfly valves and pneumatic butterfly valves.

[0028] Dissolved oxygen sensor 3 is connected to PLC control module 7. Dissolved oxygen sensor 3 is used to obtain the dissolved oxygen concentration of the water and feed it back to PLC control module 7.

[0029] The PLC control module 7, the blower 6, and the grouped aeration module are connected in sequence.

[0030] PLC control module 7 is used to control the operation of fan 6 according to dissolved oxygen concentration.

[0031] Fan 6 is used to transmit air to the grouped aeration module.

[0032] PLC control module 7 is connected to butterfly valve 4.

[0033] PLC control module 7 is used to control the opening and closing of butterfly valve 4 according to dissolved oxygen concentration or operating mode, and to start and stop the self-cleaning and group aeration modules.

[0034] The dissolved oxygen sensor 3 measures the concentration of dissolved oxygen in the water, a crucial indicator in the biochemical treatment process that reflects the oxygen supply to the water. The intelligent control box integrates multiple control modules (such as the PLC control module 7 and the cloud-based IoT module) for centralized management and control of various system functions, ensuring efficient and stable system operation. The PLC control module 7 is a programmable logic controller that receives data from the sensors and controls the operation of the blower 6, butterfly valve 4, and aeration modules based on this data, ensuring automated and efficient system operation. The grouped aeration module consists of multiple aeration units 2, which are independently controlled. Air is evenly distributed into the water through microporous hoses, promoting oxygen exchange and sludge fluidization. Microporous hoses are small pipes typically used to supply oxygen to the water; the microporous design ensures even air distribution. Butterfly valve 4 controls the opening and closing of the valve, regulating the airflow and switching the aeration system on and off.

[0035] It should be noted that through the coordinated operation of dissolved oxygen sensor 3, PLC control module 7, and butterfly valve 4, the system can achieve automatic monitoring and dynamic adjustment. Based on real-time dissolved oxygen data, PLC control module 7 precisely adjusts the operation of blower 6 and the start / stop of aeration unit 2, ensuring that the oxygen demand of the water is met and avoiding energy waste from over-aeration. Meanwhile, the self-cleaning function of butterfly valve 4, through periodic opening and closing, effectively reduces micropore clogging, maintains aeration efficiency, and lowers maintenance frequency and costs. Overall, this system achieves a high degree of automation, improves wastewater treatment efficiency, reduces energy consumption and manual intervention, and possesses strong adaptability and intelligent management capabilities.

[0036] In this embodiment of the invention, aeration control is achieved through dynamic grouping. In ultra-low load mode, aeration units 2 are activated intermittently to maintain a total aeration capacity of 20%-70%, while also providing fluidization functionality. For example, with 10 groups of aeration units 2 and a total aeration capacity of 20%, to ensure fluidization, aeration units 2 are sequentially numbered 1, 2, 3...10, and grouped as 1, 6, 2, 7, 3, 8, 4, 9, 5, 10. The control mode involves sequentially activating units 1, 6, 2, 7, 3, 8, 4, 9, 5, 10 for 1-5 minutes. In ultra-high load mode, all aeration units 2 are activated.

[0037] The self-cleaning method is as follows: the PLC controller controls the butterfly valve 4 actuator to open the valve to 10%-40%, and all valves open and close in turn, each time for 1-5 minutes, 1-4 times a day.

[0038] In one possible implementation, it also includes: pool body 1.

[0039] Aeration units 2 are evenly distributed within pool 1.

[0040] The dissolved oxygen sensor 3 is located at the end of the aeration zone of tank 1 and is used to obtain the dissolved oxygen concentration of the water in tank 1.

[0041] It should be noted that by placing the dissolved oxygen sensor 3 at the bottom of the tank 1, the concentration of oxygen in the water can be monitored in real time, ensuring that the dissolved oxygen level is always kept within the ideal range. At the same time, the aeration units 2 are evenly distributed in the tank, ensuring uniform gas distribution, effectively avoiding the problem of low treatment efficiency caused by uneven oxygen distribution, optimizing the sewage treatment process, improving oxygen utilization, enhancing sludge fluidization effect, ensuring efficient and stable operation of the system, and reducing energy waste.

[0042] In one possible implementation, the spacing between each aeration unit 2 is 0.2-2m.

[0043] In one possible implementation, it also includes: a plurality of manual valves 22.

[0044] Manual valve 22 is connected to aeration unit 2.

[0045] Each manual valve 22 corresponds to each aeration unit 2.

[0046] It should be noted that by setting multiple manual valves 22, each valve corresponds one-to-one with an aeration unit 2, allowing operators to manually adjust the airflow of each aeration unit 2 when needed. This provides the system with flexible adjustment capabilities, enabling detailed adjustments and rapid responses based on actual needs. In addition, the setting of manual valves 22 also facilitates equipment inspection and troubleshooting, improving the operability and reliability of the system.

[0047] In one possible implementation, it also includes an air distributor 23.

[0048] Air distributor 23 is located outside pool 1.

[0049] The air distributor 23 is used to evenly distribute the air supplied by the fan 6 into each individual microporous hose, maintaining the dissolved oxygen concentration within the target concentration range.

[0050] It should be noted that by setting up the air distributor 23, the air provided by the blower 6 can be effectively and evenly distributed to each microporous hose, ensuring uniform oxygen distribution in the tank, avoiding local insufficient or excessive aeration, improving oxygen utilization efficiency, maintaining the dissolved oxygen concentration in the tank within the target range, optimizing the wastewater treatment process, and the uniform airflow distribution of the air distributor 23 also effectively promotes sludge fluidization, improves reaction efficiency, reduces energy waste, and enhances the stability and treatment capacity of the entire system.

[0051] In one possible implementation, it also includes: an air duct 5.

[0052] Each butterfly valve 4 is connected to the main air pipe 5.

[0053] Air main pipe 5, butterfly valve 4, and independent microporous hose are connected in sequence.

[0054] The main air supply pipe is used to deliver air to butterfly valve 4.

[0055] The butterfly valve 4 is used to adjust the switch according to the instructions of the PLC control module 7 to distribute air into the independent microporous hose.

[0056] It should be noted that by connecting the main air supply pipe 5 and the butterfly valve 4, air can be precisely regulated from the main air supply pipe and delivered to each microporous hose after passing through the butterfly valve 4. The butterfly valve 4 adjusts its switch according to the instructions of the PLC control module 7, ensuring precise control of the airflow when the air is distributed to each aeration unit 2. This allows the system to flexibly adjust the aeration intensity according to real-time needs, thereby optimizing oxygen supply and improving energy efficiency. At the same time, it ensures uniform airflow in the tank, effectively improving wastewater treatment efficiency and reducing energy waste. Through the automatic control of the PLC, the entire process is more intelligent, reducing manual intervention and ensuring the stability and efficient operation of the system.

[0057] In one possible implementation, the independent microporous hose is parallel to the hose fixing bracket 21.

[0058] In one possible implementation, butterfly valve 4 is connected to aeration unit 2.

[0059] Butterfly valve 4 corresponds one-to-one with aeration unit 2.

[0060] In one possible implementation, controlling the operation of fan 6 based on dissolved oxygen concentration specifically includes: Determine the current water load.

[0061] When the water load is high, the PLC control module 7 controls the operation of the fan 6 based on the real-time dissolved oxygen concentration.

[0062] When the dissolved oxygen value is lower than the preset dissolved oxygen value, the fan 6 is controlled to run at high frequency until the dissolved oxygen concentration is greater than or equal to the preset dissolved oxygen value. When the dissolved oxygen value is greater than the preset dissolved oxygen value, the fan 6 is controlled to run at low frequency until the dissolved oxygen concentration is lower than the preset dissolved oxygen value.

[0063] When the water load is at normal load, the first dissolved oxygen value is determined. When the first dissolved oxygen value is less than the preset dissolved oxygen value, the blower 6 is controlled to run at high frequency until the dissolved oxygen value is greater than or equal to the set value. When the first dissolved oxygen value is greater than the preset dissolved oxygen value, the blower 6 is controlled to run at low frequency for a preset time, and the second dissolved oxygen value is determined.

[0064] When the second dissolved oxygen value is less than the preset dissolved oxygen value, the fan 6 is controlled to run at high frequency until the dissolved oxygen value is greater than or equal to the set value. When the second dissolved oxygen value is greater than the preset dissolved oxygen value, the fan 6 is controlled to run at low frequency for a preset time to determine the third dissolved oxygen value.

[0065] When the water load is low, the PLC control module 7 controls the fan 6 to operate at low frequency and groups the butterfly valves 4 to obtain multiple combinations of butterfly valves 4.

[0066] Set the streaming duration.

[0067] When the dissolved oxygen value is less than the preset dissolved oxygen value, the PLC control module 7 controls all valve combinations to open. When the dissolved oxygen value is greater than the preset dissolved oxygen value, the PLC control module 7 controls the valve combinations to run the fluidization time sequentially.

[0068] It should be noted that by precisely controlling the operating frequency of the blower 6 and the opening and closing of the butterfly valve 4, the system can always maintain the optimal dissolved oxygen concentration under different water loads. This adaptive control strategy based on real-time dissolved oxygen concentration can effectively save energy, reduce unnecessary air supply, and ensure a stable oxygen supply to the water body, avoiding over-aeration or under-aeration, thereby improving the system's operating efficiency and economy.

[0069] In one possible implementation, self-cleaning specifically includes: The butterfly valves 4 are grouped to obtain multiple combinations of butterfly valves 4.

[0070] Set the self-cleaning duration.

[0071] The PLC control module 7 controls each butterfly valve 4 combination to open or close sequentially according to a preset time.

[0072] In one possible implementation, by grouping the butterfly valves 4 and setting self-cleaning intervals, regular cleaning and maintenance of the system can be achieved, avoiding blockage or efficiency reduction caused by prolonged operation of a single butterfly valve 4. The PLC control module 7 controls the opening and closing of the butterfly valves 4 sequentially according to preset intervals, ensuring that each butterfly valve 4 is cleaned, extending the service life of the equipment, improving the reliability and stability of the system, and reducing the need for manual intervention.

[0073] In this embodiment of the invention, high load refers to a high concentration of pollutants such as organic matter or ammonia nitrogen in the influent and a large oxygen demand. The system must provide sufficient oxygen through high-frequency operation of the blower 6 to maintain the treatment effect. Low load refers to a low concentration of pollutants in the influent and a small oxygen demand. The system only needs to operate at low frequency and combine valve grouping with alternating aeration to meet the demand, while avoiding energy waste and over-aeration. Normal load refers to the influent concentration and oxygen demand being at the design normal level. The system cannot be oxygen-deficient or over-aerated for a long time. The blower 6 is switched between high frequency and low frequency to achieve a balance between energy saving and stable oxygen supply.

[0074] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: In this embodiment of the invention, the system consists of a dissolved oxygen sensor, an intelligent control box, a variable frequency blower, and a grouped aeration module. These components are precisely connected to achieve highly coordinated operation. The dissolved oxygen sensor is installed at the bottom of the tank, monitoring the oxygen concentration in the water in real time and feeding it back to the PLC control module. The PLC dynamically adjusts the blower speed and butterfly valve opening / closing based on the collected data, thereby achieving precise control of aeration intensity and airflow. This intelligent and adaptive adjustment allows for flexible control of the aeration unit's start and stop according to the wastewater load, avoiding over-aeration or insufficient oxygen supply, significantly reducing energy consumption. The aeration system has a self-cleaning function, effectively flushing the microporous hoses through a timed switch, reducing blockages, lowering maintenance costs, and extending the operating cycle. The aeration unit, combined with the grouped start / stop strategy and airflow adjustment, can form a directional water flow, achieving full-tank fluidization, preventing sludge accumulation at the bottom of the tank, and improving sludge suspension and oxygen transfer efficiency.

[0075] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the preferred embodiments, while those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the protection scope of the present invention.

Claims

1. A group-type self-cleaning aeration and gasification system, characterized in that, include: Dissolved oxygen sensor, intelligent control box, blower and grouped aeration module; The intelligent control box includes a power distribution module, a control and protection module, a PLC control module, a cloud box IoT gateway module, and a data acquisition module. The grouped aeration module includes multiple groups of aeration units; The aeration unit includes multiple independent microporous hoses, hose fixing brackets, and butterfly valves, wherein the butterfly valves include electric butterfly valves and pneumatic butterfly valves. The dissolved oxygen sensor is connected to the PLC control module. The dissolved oxygen sensor is used to obtain the dissolved oxygen concentration of the water and feed it back to the PLC control module. The PLC control module, the blower, and the grouped aeration module are connected in sequence. The PLC control module is used to control the operation of the fan according to the dissolved oxygen concentration; The fan is used to transmit air to the grouped aeration module; The PLC control module is connected to the butterfly valve; The PLC control module is used to control the opening and closing of the butterfly valve, and to perform self-cleaning and start / stop the grouped aeration module according to the dissolved oxygen concentration or operating mode.

2. The grouped self-cleaning aeration and gasification system according to claim 1, characterized in that, Also includes: Pool body; The aeration units are evenly distributed within the pool. The dissolved oxygen sensor is located at the end of the aeration zone of the pool and is used to obtain the dissolved oxygen concentration of the water in the pool.

3. The group-type self-cleaning aeration and gasification system according to claim 1, characterized in that, The spacing between each of the aeration units is 0.2-2m.

4. The grouped self-cleaning aeration and gasification system according to claim 1, characterized in that, Also includes: Multiple manual valves; The manual valve is connected to the aeration unit; Each of the manual valves corresponds one-to-one with each of the aeration units.

5. The grouped self-cleaning aeration and gasification system according to claim 1, characterized in that, Also includes: Air distributor; The air distributor is located outside the pool body; The air distributor is used to evenly distribute the air supplied by the fan into each of the individual microporous hoses, maintaining the dissolved oxygen concentration within the target concentration range.

6. The group-type self-cleaning aeration and gasification system according to claim 1, characterized in that, Also includes: Air supervisor; Each of the butterfly valves is connected to the main air pipe; The main air pipe, the butterfly valve, and the independent microporous hose are connected in sequence; The main air supply pipe is used to deliver air to the butterfly valve; The butterfly valve is used to adjust the switch according to the instructions of the PLC control module to distribute the air into the independent microporous hose.

7. The grouped self-cleaning aeration and gasification system according to claim 1, characterized in that, The independent microporous hose is parallel to the hose fixing bracket.

8. The grouped self-cleaning aeration and gasification system according to claim 1, characterized in that, The butterfly valve is connected to the aeration unit; Each butterfly valve corresponds to one of the aeration units.

9. The grouped self-cleaning aeration and gasification system according to claim 1, characterized in that, The step of controlling the operation of the fan based on the dissolved oxygen concentration specifically includes: Determine the current water load; When the water load is high, the PLC control module controls the operation of the fan based on the real-time dissolved oxygen concentration; When the dissolved oxygen value is less than the preset dissolved oxygen value, the fan is controlled to operate at high frequency until the dissolved oxygen concentration is greater than or equal to the preset dissolved oxygen value. When the dissolved oxygen value is greater than the preset dissolved oxygen value, the fan is controlled to operate at low frequency until the dissolved oxygen concentration is less than the preset dissolved oxygen value. When the water load is at normal load, a first dissolved oxygen value is determined. When the first dissolved oxygen value is less than the preset dissolved oxygen value, the fan is controlled to run at high frequency until the dissolved oxygen value is greater than or equal to the set value. When the first dissolved oxygen value is greater than the preset dissolved oxygen value, the fan is controlled to run at low frequency for a preset time, and a second dissolved oxygen value is determined. When the second dissolved oxygen value is less than the preset dissolved oxygen value, the fan is controlled to run at high frequency until the dissolved oxygen value is greater than or equal to the set value. When the second dissolved oxygen value is greater than the preset dissolved oxygen value, the fan is controlled to run at low frequency for a preset time to determine the third dissolved oxygen value. When the water load is low, the PLC control module controls the fan to run at low frequency and groups the butterfly valves to obtain multiple butterfly valve combinations. Set the streaming duration; When the dissolved oxygen value is less than the preset dissolved oxygen value, the PLC control module controls all valves in the combination to open. When the dissolved oxygen value is greater than the preset dissolved oxygen value, the PLC control module controls the valves in the combination to run for the fluidization time in sequence.

10. The grouped self-cleaning aeration and gasification system according to claim 1, characterized in that, The self-cleaning specifically includes: The butterfly valves are grouped to obtain multiple butterfly valve combinations; Set the self-cleaning duration; The PLC control module controls each butterfly valve combination to open or close sequentially according to a preset time interval.

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