An intelligent control ring ditch pond bottom microporous aeration system

Abstract

The present invention provides an intelligent control system for microporous aeration at the bottom of a ditch pond, which relates to the field of aquaculture and includes online water quality monitoring equipment, an oxygenation control system, and a microporous aeration device located at the bottom of the pond. This system solves the problems of the prior art, such as the cumbersome installation process of pipelines, the inconvenience caused to water management activities such as navigation and weeding, and the inability to specifically oxygenate the ditch or other areas. The online monitoring equipment and the oxygenation control system can be used to determine the water quality of the pond in real time, and the bottom microporous aeration system can be intelligently started and shut down according to changes in water quality. The device is made of common materials and can be modularly manufactured. With simple adjustments, it can achieve the function of global oxygenation of the bottom layers of different ponds, such as ditch ponds and flat-bottom ponds. At the same time, the air pipes are all located below the water surface, which is convenient for water management activities such as navigation and weeding in the pond. Furthermore, the air branches are all self-sinking pipes, which facilitate the layout and recovery of the pipes.

Description

Technical Field

[0001] The present invention relates to the field of aquaculture, and in particular to an intelligently controlled microporous aeration system for the bottom layer of a ring ditch pond. Background Art

[0002] Ring-ditch pond aquaculture is a common method for aquaculture, including crabs. During routine aquaculture, due to the greater water depth than in other areas, the ring ditch of the ring-ditch pond may experience hypoxia, which can even lead to the death of crabs within the ditch. Commonly used bottom-level microporous aeration devices lack the ability to specifically oxygenate areas with poor water quality. Furthermore, pond managers often cannot accurately judge water quality, and activation of the bottom-level microporous aeration devices is primarily based on their own experience, resulting in low oxygenation efficiency and waste of electrical resources. Furthermore, the main pipes of commonly used bottom-level microporous aeration devices are arranged above the water surface, with branch pipes secured to the pond bottom with bricks or wire. The installation process is cumbersome and inconvenient for water management activities such as boating and weeding. How to enable the bottom-level microporous aeration device to intelligently open and close according to water quality, specifically control oxygenation in the ring ditch or other areas, reduce the impact of the equipment on pond management, and simplify the installation process has broad application prospects. Summary of the Invention

[0003] In order to solve the problems in the prior art of complicated pipeline installation process, inconvenience to water management activities such as boating and weeding, and inability to oxygenate the ring ditch or other areas in a targeted manner, the present invention provides an intelligent control ring ditch pond bottom microporous aeration system, including online water quality monitoring equipment, an oxygenation control system and a microporous aeration device located at the bottom of the pond; the online water quality monitoring equipment is provided with multiple sets of probes for simultaneously monitoring dissolved oxygen, ammonia nitrogen and other indicators in different areas of the pond; the online water quality monitoring equipment is electrically connected to the oxygenation control system and the monitored data is sent to the oxygenation control system in real time; the microporous aeration device is electrically connected to the oxygenation control system; the microporous aeration device includes an air main, an air branch, a microporous aeration pipe and a blower; the air main is connected to the air branch; a check valve is provided at the connection between the air main and the air branch; a microporous aeration pipe is provided on the outer sleeve of the air branch pipe drilled along the pipeline; the air branch pipe and the microporous aeration pipe are sealed with electrical tape; and the air main is connected to the blower.

[0004] The present invention provides an intelligent control ring ditch pond bottom microporous aeration system. Preferably, the probes of the water quality online monitoring equipment are respectively arranged in the ring ditch and the bantian area; the water quality online monitoring equipment includes a solar power supply panel and an internal rechargeable battery pack; the probe is electrically connected to the internal rechargeable battery pack.

[0005] The present invention provides an intelligent controlled ring ditch pond bottom microporous aeration system. Preferably, the oxygenation control system includes a programmable logic controller (PLC) and an electrical control circuit; a solenoid valve is provided on the air main; the solenoid valve is electrically connected to the programmable logic controller (PLC); and the programmable logic controller (PLC) is electrically connected to the electrical control circuit.

[0006] The present invention provides an intelligent controlled microporous aeration system for the bottom layer of a ring ditch pond. Preferably, a four-way interface is provided at intervals of 3m to 4m along the air main pipe to communicate with the air branch pipe; a galvanized angle steel is provided along the pipeline below the air main pipe; the air main pipe and the galvanized angle steel are fixed with a 304 stainless steel tie; at least one galvanized steel pipe is welded to the bottom of the galvanized angle steel at intervals of 3m to 4m; the galvanized steel pipe is driven into the bottom of the pond until the air main pipe is 0.2m to 0.5m above the pond bottom; the air branch pipe is provided at the bottom of the pond to oxygenate the entire bottom layer of the pond; and the air main pipe is connected to the blower via the galvanized steel pipe.

[0007] The present invention provides an intelligent controlled microporous aeration system for the bottom layer of a ring ditch pond. Preferably, the air branch pipe adopts a self-sinking pipe; the density of the air branch pipe is greater than the density of water during aeration without using bricks or steel wire to increase weight; a pipe plug is provided at one end of the air branch pipe; the air branch pipe is provided with drill holes every approximately 3m to 8m along the pipeline; the closer the drill hole is to the four-way interface, the smaller the hole diameter; conversely, the farther the drill hole is from the four-way interface, the larger the hole diameter.

[0008] The present invention provides an intelligent control ring ditch pond bottom micropore aeration system. Preferably, the drilling spacing in the ring ditch of the ring ditch pond is 3-4m; the drilling spacing in other areas of the ring ditch pond is 4-8m; and the drilling spacing in the flat bottom pond is 3-4m.

[0009] The present invention provides an intelligent controlled ring ditch pond bottom microporous aeration system. Preferably, the micropore density of the microporous aeration tube is ≥1000 / m; and the average pore diameter of the micropores is 0.06 mm.

[0010] The present invention provides an intelligent controlled ring ditch pond bottom microporous aeration system. Preferably, the blower adopts a double-impeller large air volume blower; the blower is set at the edge of the pond; the height of the blower is not lower than the height of the pond stem.

[0011] The present invention provides an intelligent control system for microporous aeration of the bottom of a ditch pond, comprising an online water quality monitoring device, an oxygenation control system, and a microporous aeration device located at the bottom of the pond. This system solves the problems of the prior art, such as the cumbersome installation of pipelines, the inconvenience caused to water management activities such as navigation and weeding, and the inability to specifically oxygenate the ditch or other areas. The online monitoring device and the oxygenation control system can be used to determine the water quality of the pond in real time, and the bottom microporous aeration system can be intelligently started and shut down according to changes in water quality. The device is made of common materials and can be modularly manufactured. With simple adjustments, it can achieve the function of oxygenating the bottom of different ponds, such as ditch ponds and flat-bottom ponds. At the same time, the air pipes are all located below the water surface, facilitating water management activities such as navigation and weeding in the pond. Furthermore, the air branches are all self-sinking pipes, which facilitate the layout and recovery of the pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of an intelligent control ring ditch pond bottom microporous aeration system provided by the present invention;

[0013] Figure 2 A schematic cross-sectional view of a Sakata-type intelligent controlled ring ditch pond bottom microporous aeration system provided by the present invention;

[0014] Figure 3 A schematic diagram of the cross-sectional structure of the ring ditch of an intelligent control ring ditch pond bottom microporous aeration system provided by the present invention;

[0015] Figure 4 A schematic cross-sectional view of an intelligent controlled ring ditch pond bottom microporous aeration system provided by the present invention;

[0016] Figure 5 A schematic diagram of the microporous aeration pipe structure of an intelligent control ring ditch pond bottom microporous aeration system provided by the present invention;

[0017] Figure 6 A schematic diagram of the structure near the blower of an intelligent control ring ditch pond bottom microporous aeration system provided by the present invention;

[0018] Figure 7 This is a circuit diagram of an oxygenation control system for an intelligently controlled microporous aeration system for the bottom of a ring ditch pond provided by the present invention;

[0019] Numbers in the figure: online water quality monitoring equipment 1, probe 1-1, solar power panel 1-2, internal rechargeable battery pack 1-3, oxygenation control system 2, programmable logic controller PLC 2-1, electrical control circuit 2-2, microporous aeration device 3, air main pipe 3-1, solenoid valve 3-1-1, four-way interface 3-1-2, galvanized angle steel 3-1-3, stainless steel cable tie 3-1-4, galvanized steel pipe 3-1-5, air branch pipe 3-2, pipe plug 3-2-1, drill hole 3-2-2, microporous aeration pipe 3-3, blower 3-4, check valve 3-5, electrical tape 3-6. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific preferred embodiments.

[0021] In the description of the present invention, it should be understood that the terms "left side," "right side," "upper," "lower," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Terms such as "first" and "second" do not indicate the importance of components and therefore should not be construed as limitations on the present invention. The specific dimensions used in this embodiment are intended only to illustrate the technical solution and do not limit the scope of protection of the present invention.

[0022] Example 1:

[0023] like Figures 1 to 7 As shown, the present invention provides an intelligent controlled ring ditch pond bottom microporous aeration system, including an online water quality monitoring device 1, an oxygenation control system 2 and a microporous aeration device 3 located at the bottom of the pond; the online water quality monitoring device 1 is provided with multiple groups of probes 1-1 for simultaneously monitoring indicators such as dissolved oxygen and ammonia nitrogen in different areas of the pond; the online water quality monitoring device 1 is electrically connected to the oxygenation control system 2 and sends the monitored data to the oxygenation control system 2 in real time; the microporous aeration device 3 is electrically connected to the oxygenation control system 2; the microporous aeration device 3 includes an air main 3-1, an air branch 3-2, a microporous aeration pipe 3-3 and a blower 3-4; the air main 3-1 is connected to the air branch 3-2; a check valve 3-5 is provided at the connection between the air main 3-2 and the air branch 3-2; a microporous aeration pipe 3-3 is provided on the outer sleeve of the air branch 3-2 along the pipeline drilled hole; the air branch 3-2 and the microporous aeration pipe 3-3 are sealed by electrical tape 3-6; the air main 3-1 is connected to the blower 3-4.

[0024] More specifically, the probes 1-1 of the online water quality monitoring device 1 are respectively placed in the ring ditch and the Bantian area; the online water quality monitoring device 1 includes a solar power panel 1-2 and an internal rechargeable battery pack 1-3; the probes 1-1 are electrically connected to the internal rechargeable battery pack 1-3. Preferably, the online water quality monitoring device 1 is configured with two sets of probes 1-1, placed in the ring ditch and the Bantian area, respectively, to monitor indicators such as dissolved oxygen, ammonia nitrogen, redox potential, pH, and temperature in the water body, with monitoring accuracy meeting relevant national regulations. The device is powered by the solar panels 1-2 and can continue to operate for more than 15 days under continuous rainy conditions through the rechargeable battery pack 1-3. It is capable of 24-hour continuous online monitoring, and monitoring data and device status information can be transmitted in real time to the oxygenation control system 2 via a cable.

[0025] More specifically, the oxygen enrichment control system 2 includes a programmable logic controller PLC2-1 and an electrical control circuit 2-2; a solenoid valve 3-1-1 is provided on the air main pipe 3-1; the solenoid valve 3-1-1 is electrically connected to the programmable logic controller PLC2-1; and the programmable logic controller PLC2-1 is electrically connected to the electrical control circuit 2-2. Preferably, in the oxygenation control system 2; the programmable logic controller PLC2-1 serves as the automatic control unit of the electrical control loop 2-2, and the thresholds of indicators such as dissolved oxygen and ammonia nitrogen are preset in the program of the programmable logic controller PLC2-1, and the thresholds include a lower limit and an upper limit; when the water quality index value of the ring ditch and Bantian area is lower than the lower limit threshold, the programmable logic controller PLC2-1 issues an instruction to open the air main solenoid valve 3-1-1 and the blower 3-4 at the corresponding position; when the water quality index value is higher than the upper limit threshold and remains for a certain period of time, the programmable logic controller PLC2-1 issues an instruction to close the air main solenoid valve 3-1-1 and the blower 3-4 at the corresponding position; the electrical control loop 2-2 is composed of control loop components such as circuit breakers, contactors, thermal relays, switching handles, buttons, signal lights, etc., which can accept instructions sent by the programmable logic controller PLC2-1 and at the same time, have the function of manual control.

[0026] More specifically, the air main pipe 3-1 is made of UPVC pipe with a diameter of De63 and a wall thickness of 2.0mm. One end of the pipe is connected to the air outlet of the blower 3-4, and the other end is provided with a pipe plug. A four-way interface 3-1-2De63-16 is provided every 4m on the air main pipe 3-1 and is connected to the air branch pipe 3-2. A galvanized angle steel 3-1-3 is provided along the lower part of the air main pipe 3-1. The size of the galvanized angle steel 3-1-3 is 30mm×30mm×3mm. 304 stainless steel is used between the air main pipe 3-1 and the galvanized angle steel 3-1-2. Secure with stainless steel tie 3-1-4. D48×3 galvanized steel pipe 3-1-5, approximately 1–2 m long, is welded to the lower portion of galvanized angle steel 3-1-3 every 4 m. Galvanized steel pipe 3-1-5 is driven into the pond bottom to a point 0.2 m above the air main 3-1. The length of galvanized steel pipe 3-1-5 depends on the pond type. In ring-ditch ponds, the length of galvanized steel pipe 3-1-5 near the slope of the ditch is 2 m, while in other areas of the ring-ditch pond, the length is 1 m. In flat-bottomed ponds, the length of galvanized steel pipe 3-1-5 is 1 m. Air main 3-1 should be no longer than 100 m, with the end of air main 3-1 3–4 m from the pond stem.

[0027] More specifically, air branch pipe 3-2 utilizes a self-sinking polyvinyl chloride (PVC) plastic pipe with a diameter of De16 and a wall thickness of 4mm. The pipe is constructed with a PVC exterior and a polyethylene interior. It weighs no less than 23kg per 100m, eliminating the need for bricks or wire to secure air branch pipe 3-2 during aeration. A check valve 3-5 is installed at one end of air branch pipe 3-2, connecting it to main air pipe 3-1 via a four-way connection 3-1-2De63-16. A pipe plug 3-2-1 is installed at the other end. Drill holes 3-2-2 are drilled every 4 or 8m along air branch pipe 3-2. The diameter of the first half of the holes from the four-way connection 3-1-2 is 1.5mm, while the diameter of the second half is 2mm. Microporous aeration pipe 3-3 is installed above the drill holes 3-2-2 in air branch pipe 3-2.

[0028] More specifically, the spacing of boreholes 3-2-2 depends on the pond type. For ring-ditch ponds, the spacing of boreholes 3-2-2 is approximately 4 meters, while for other areas of the ring-ditch pond, the spacing is approximately 8 meters. For flat-bottom ponds, the spacing of boreholes 3-2-2 is approximately 4 meters. Air branch pipes 3-2 should be no longer than 50 meters, with the ends of these pipes 3-2 located 3-4 meters from the pond stem. These pipes should be densely distributed throughout the pond floor to ensure full aeration of the bottom layer.

[0029] More specifically, the microporous aeration tube 3-3 has a diameter of 25 mm x 16 mm, a single length of approximately 350 mm, a micropore density of ≥1000 per meter, and an average micropore diameter of 0.06 mm. The junction between the polyvinyl chloride plastic self-sinking tube De16 and the microporous aeration tube 3-3 is sealed with electrical tape 3-6 approximately 50 mm wide and 0.18 mm thick, and secured with nylon cable ties.

[0030] More specifically, blower 3-4 uses a dual-impeller, high-volume blower. Air from blower 3-4 passes through D76×3 galvanized steel pipe 1-3, De75 UPVC pipe, and a De75-63 two-way reducer before entering the UPVC pipes of air main 3-1 and De63. High-pressure rubber hoses connect the D76×3 galvanized steel pipe 3-1-5 to the De75 UPVC pipe. These hoses are secured to the pipes using 304 stainless steel tie wraps 3-1-4 and hose clamps. Blower 3-4 is located at the edge of the pond, at least at its height. It is bolted to a galvanized steel plate measuring 600mm×600mm×4mm. Four D48×3 galvanized steel pipes 3-1-5, approximately 1.5 meters long, are welded to the lower portion of the plate and driven into the pond slope.

[0031] More specifically, embodiment 1 of the present invention also includes an oxygen enrichment control system control circuit; the oxygen enrichment control system receives an external 380V AC power supply, which outputs 220V AC power after passing through a 380 / 220V transformer; a self-locking button S1 and a contactor C1 form an opening and closing circuit; when S1 is closed, the transformer secondary coil, fuses F6 and F7, the self-locking button S1, and the coil of the contactor C1 are energized, and contacts 1, 3, 2, and 4 of the contactor C1 are closed, generating a 220V voltage difference between line L' and line N', and supplying power to the control circuit. When the self-locking button S1 is released, the power between line L' and line N' is disconnected, and the control circuit stops supplying power.

[0032] The self-locking button S2, contactor C2, and dissolved oxygen control contact RELAYS3 form the control circuit for blower 3-4. Self-locking button S2 switches between automatic and manual operation. When self-locking button S2 is closed, contactor C2 energizes, and blower 3-4 begins operation. When self-locking button S2 is disconnected, blower 3-4 enters automatic operation control. When the dissolved oxygen in the water falls below the set lower threshold and programmable logic controller PLC2-1 receives a signal indicating that solenoid valve 3-1-1 is fully open, RELAYS3 on programmable logic controller PLC2-1 closes, energizing contactor C2 and energizing blower 3-4. When the dissolved oxygen in the water rises above the set upper threshold, RELAYS3 on programmable logic controller PLC2-1 disconnects, and blower 3-4 stops.

[0033] The control circuit for air main solenoid valve 3-1-1 consists of self-locking button S3, contactor C3, relay C4, dissolved oxygen control contact RELAYS4 of the PLC controller, and microcomputer timer switch ZYT02. When the dissolved oxygen level in the water falls below the set lower threshold, dissolved oxygen control contact RELAYS4 opens, relay C4 is de-energized, its normally closed contacts open, contacts 3 and 4 of microcomputer timer switch ZYT02 energize, contactor C3 begins operating, and solenoid valve 3-1-1 opens. When the dissolved oxygen level in the water rises above the set upper threshold, dissolved oxygen control contact RELAYS4 closes, relay C4 energizes, its normally closed contacts open, contacts 3 and 4 of microcomputer timer switch ZYT02 de-energize, contactor C3 stops operating, and solenoid valve 3-1-1 closes.

[0034] Working principle:

[0035] First, drain the pond. Drive the galvanized steel pipe 3-1-5, which secures the air main 3-1, into the pond bottom, ensuring that the tops of the pipes 3-1-5 are roughly aligned. Then, weld the galvanized steel angle 3-1-3 to the pipes 3-1-5, and secure the air main 3-1 to the pipes 3-1-5. Assemble the branch air pipe 3-2, microporous aeration pipe 3-3, and check valve 3-5, and connect them to the pre-installed four-way connector 3-1-2 on the air main 3-1. Install the blower 3-4 at the edge of the pond. Install the galvanized steel pipe 3-1-3 and other components at the air outlet, connecting them to the air main 3-1. Simultaneously, assemble the online water quality monitoring device 1, secure the probes 1-1 in different areas of the pond, and install the oxygenation control system 2, which is pre-programmed with the programmable logic controller PLC 2-1. Finally, fill the pond with water to submerge the pipe system. Power the blower 3-4 and test it for operation.

[0036] In summary, the present invention provides an intelligent control system for microporous aeration of the bottom of a ring ditch pond, including online water quality monitoring equipment, an oxygenation control system, and a microporous aeration device located at the bottom of the pond. This solves the problems of the prior art, such as the cumbersome installation process of the pipeline, the inconvenience caused to water management activities such as navigation and weeding, and the inability to oxygenate the ring ditch or other areas in a targeted manner. The online monitoring equipment and the oxygenation control system can be used to judge the water quality of the pond in real time, and the bottom microporous aeration system can be intelligently started and shut down according to changes in water quality. The material of this device is common and can be modularly manufactured. After simple adjustments, it can achieve the function of oxygenating the bottom of different ponds such as ring ditch ponds and flat-bottom ponds. At the same time, the air pipes are all located below the water surface, which is convenient for water management activities such as navigation and weeding in the pond. The air branches are all self-sinking pipes, which are convenient for the layout and recovery of the pipes.

[0037] Although the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description is not intended to limit the present invention. After reading the above, various modifications and substitutions of the present invention will be readily apparent to those skilled in the art. Within the scope of the technical concept of the present invention, various equivalent transformations may be made to the technical solution of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. An intelligent control ring ditch pond bottom microporous aeration system, characterized by: The invention comprises a water quality online monitoring device (1), an oxygenation control system (2) and a microporous aeration device (3) located at the bottom of a pond; the water quality online monitoring device (1) is provided with a plurality of probes (1-1) for simultaneously monitoring dissolved oxygen, ammonia nitrogen and other indicators in different areas of the pond; the water quality online monitoring device (1) is electrically connected to the oxygenation control system (2) and the monitored data is sent to the oxygenation control system (2) in real time; the microporous aeration device (3) is electrically connected to the oxygenation control system (2); the microporous aeration device (3) includes an air A main pipe (3-1), an air branch pipe (3-2), a microporous aeration pipe (3-3) and a blower (3-4); the main air pipe (3-1) is connected to the air branch pipe (3-2); a check valve (3-5) is provided at the connection between the main air pipe (3-1) and the air branch pipe (3-2); a microporous aeration pipe (3-3) is provided on the outer cover of the air branch pipe (3-2) along the pipe borehole; the air branch pipe (3-2) and the microporous aeration pipe (3-3) are sealed by electrical tape (3-6); the main air pipe (3-1) is connected to the blower (3-4); A four-way interface (3-1-2) is provided along the air main pipe (3-1) at intervals of 3m to 4m to connect with the air branch pipe (3-2); a galvanized angle steel (3-1-3) is provided along the lower portion of the air main pipe (3-1); the air main pipe (3-1) and the galvanized angle steel (3-1-3) are fixed with a 304 stainless steel tie (3-1-4); at least one galvanized steel pipe (3-1-5) is welded to the lower portion of the galvanized angle steel (3-1-3) at intervals of 3m to 4m; the galvanized steel pipe (3-1-5) is driven into the bottom of the pond to a point where the air main pipe (3-1) is 0.2m to 0.5m above the pond bottom; the air branch pipe (3-2) is provided at the bottom of the pond to oxygenate the entire bottom portion of the pond; the air main pipe (3-1) is connected to the blower (3-4) via the galvanized steel pipe (3-1-5); The air branch pipe (3-2) adopts a self-sinking pipe; when aeration is performed without using bricks or steel wires to increase weight, the density of the air branch pipe (3-2) is greater than the density of water; a pipe plug (3-2-1) is provided at one end of the air branch pipe (3-2); a drill hole (3-2-2) is provided every 3m to 8m along the air branch pipe (3-2); the closer the distance between the drill hole (3-2-2) and the four-way interface (3-1-2), the smaller the hole diameter; conversely, the farther the distance between the drill hole (3-2-2) and the four-way interface (3-1-2), the larger the hole diameter.

2. The intelligent controlled ring ditch pond bottom microporous aeration system according to claim 1, characterized in that: The probe (1-1) of the water quality online monitoring device (1) is respectively arranged in the ring ditch and the Bantian area; the water quality online monitoring device (1) includes a solar power supply panel (1-2) and an internal rechargeable battery pack (1-3); the probe (1-1) is electrically connected to the internal rechargeable battery pack (1-3).

3. The intelligent controlled ring ditch pond bottom microporous aeration system according to claim 1, characterized in that: The oxygen enrichment control system (2) includes a programmable logic controller (PLC) (2-1) and an electrical control circuit (2-2); an electromagnetic valve (3-1-1) is provided on the air main pipe (3-1); the electromagnetic valve (3-1-1) is electrically connected to the programmable logic controller (PLC) (2-1); and the programmable logic controller (PLC) (2-1) is electrically connected to the electrical control circuit (2-2).

4. The intelligent controlled ring ditch pond bottom microporous aeration system according to claim 1, characterized in that: The spacing between boreholes (3-2-2) in the ring ditch of the ring ditch pond is 3~4m; the spacing between boreholes (3-2-2) in other areas of the ring ditch pond is 4~8m; the spacing between boreholes (3-2-2) in the flat-bottom pond is 3~4m.

5. The intelligent controlled ring ditch pond bottom microporous aeration system according to claim 1, characterized in that: The micropore density of the microporous aeration tube (3-3) is ≥1000 pores / m; the average pore diameter of the micropores is 0.06 mm.

6. The intelligent controlled ring ditch pond bottom microporous aeration system according to claim 1, characterized in that: The blower (3-4) is a double-impeller large-air-volume blower; the blower (3-4) is arranged at the edge of the pond stalk; the height of the blower (3-4) is not lower than the height of the pond stalk.

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