A linear micro / nano aeration device for river water

Abstract

This invention discloses a linear micro-nano aeration device for river water, belonging to the field of water remediation technology. It includes several aeration components linearly and evenly distributed within the river channel. Each aeration component includes a lifting and mounting structure, comprising four fixed columns arranged in a rectangle along the edges of both riverbanks. One end of each fixed column is inserted and fixed to the riverbed near the riverbank. Mounting plates are mounted on two of the fixed columns along the width of the river channel. The two ends of each mounting plate are slidably connected to the two fixed columns. A fixing lug is provided at the other end of each fixed column, with its middle portion fixedly connected to the column. Suspension lugs are symmetrically provided at both ends of the mounting plate. This technical solution aims to improve river water quality. Furthermore, the device has a simple overall structure, is easy to install, and offers advantages such as high stability, low maintenance cost, low energy consumption, wide applicability, and minimal impact on the ecological environment.

Description

Technical Field

[0001] This invention belongs to the field of water body restoration technology, specifically relating to a linear micro-nano aeration device for river water bodies. Background Technology

[0002] Ecological restoration refers to stopping human interference with an ecosystem to reduce its load and pressure, relying on the ecosystem's self-regulation and self-organization capabilities to allow it to evolve in an orderly direction, or utilizing the ecosystem's self-recovery capabilities, supplemented by artificial measures, to gradually restore a damaged ecosystem or to enable the ecosystem to develop in a virtuous cycle. In the process of river biological ecological restoration and management, it is often necessary to use micro-nano bubble aerators to improve the water quality of polluted water bodies and promote the restoration of ecological benefits within the water.

[0003] In existing technologies, floating aeration devices are usually installed when restoring water bodies in rivers. Although floating aeration devices have certain advantages in improving water quality, they also have problems such as poor equipment stability, high maintenance costs, large energy consumption, limited applicability, potential ecological disturbance, complex installation and dismantling, and visual impact. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a linear micro-nano aeration device for river water bodies to improve river water quality. At the same time, the device has a simple overall structure, is easy to install, and has the characteristics of high stability, low maintenance cost, low energy consumption, wide applicability and minimal interference with the ecological environment.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention discloses a linear micro-nano aeration device for river water, installed within a river channel. It comprises several aeration components linearly and evenly distributed within the river channel. Each aeration component includes a lifting and mounting structure. The lifting and mounting structure includes four fixed columns arranged in a rectangular pattern along the edges of both riverbanks. One end of each fixed column is inserted and fixed to the riverbed near the riverbank. Mounting plates are provided on two of the fixed columns in the width direction of the river channel. The two ends of each mounting plate are slidably connected to the two fixed columns. A fixing lug is provided at the other end of each fixed column, with its middle portion fixedly connected to the fixed column. A lifting lug is symmetrically provided at both ends of each mounting plate, with one end of each lifting lug fixed to the mounting plate. On the side of the plate, symmetrical suspension ropes are provided between the lifting lugs and the fixing lugs. One end of the suspension rope is fixed to the lifting lug, and the other end of the suspension rope is connected to the fixing lug. The mounting plate is provided with several evenly distributed clamping blocks, and several aeration pipes are provided on the clamping blocks. The ends of adjacent aeration pipes are connected in series by flexible hoses. The end of the outermost aeration pipe is provided with an input pipe. One end of the input pipe is connected to the aeration pipe, and the other end of the input pipe is connected to the output end of the micro-nano bubble generator set on the riverbank. Several evenly distributed vertical pipes are provided along the length of the aeration pipe. One end of the vertical pipe is connected to the interior of the aeration pipe, and the other end of the vertical pipe is connected to the liquid in the river.

[0007] Furthermore, the mounting plate has a groove along its length, and a slider is provided in the groove. One end of the slider is fixedly connected to the bottom surface of the clamping block. Both ends of the mounting plate are provided with winding posts, and an adjusting rope is provided on the winding posts. The two ends of the adjusting rope are respectively wound around the winding posts. The adjusting rope passes through the middle of the clamping block, and the clamping block is slidably connected to the adjusting rope. Limiting rings are provided on the connecting ropes on both sides of the clamping block. The limiting rings are detachably connected to the adjusting ropes and are used to limit the position of the clamping block on the adjusting ropes.

[0008] Furthermore, the fixing column is retractable.

[0009] Furthermore, a micro-nano bubble discharge structure is provided at the other end of the riser. The micro-nano bubble discharge structure includes a rotating joint connected to the end of the riser. A square tube is provided at the output end of the rotating joint. One end of the square tube is connected to the rotating joint, and the other end of the square tube is closed. Several discharge pipes are provided on one side of the square tube perpendicular to the horizontal plane. One end of the discharge pipe is connected to the interior of the square tube. A slope is provided at the other end of the discharge pipe. A cover plate is provided on the slope and is fitted to the slope. A connecting rod is provided at the end of the cover plate pointing towards the square tube. One end of the connecting rod is fixed to the side of the discharge pipe. A rotating shaft is provided at the other end of the connecting rod. The other end of the cover plate is rotatably mounted on the rotating shaft. Several springs are provided at the other end of the cover plate. One end of the spring is fixed to the side of the square tube, and the other end of the spring is fixed to the end of the cover plate where the rotating shaft is located.

[0010] Furthermore, a cutting blade is provided on the side of the square tube on the aeration pipe opposite to the discharge pipe. The cutting blade is detachably connected to the square tube. A pressure sensor is provided between the contact surface of the cutting blade and the square tube. The pressure sensor is used to detect the pressure exerted by the cutting blade on the square tube, and thus determine the rotation state of the square tube.

[0011] Furthermore, the upper end of the fixed column is provided with a lifting component, which acts on the hoisting rope to lift and lower the mounting plate.

[0012] Furthermore, a high-pressure water pump is also installed on the riverbank where the micro-nano bubble generator is located, and the output end of the high-pressure water pump is equipped with a connector that connects to the input pipe.

[0013] Furthermore, a rectangular mesh cover is provided on the outside of the aeration pipe, which covers the aeration pipe and the components installed on it.

[0014] Furthermore, a top rod is provided on the surface where the cutting blade connects to the square tube. One end of the top rod is fixed to the cutting blade, and the other end of the top rod passes through the square tube and is located between the cover plate and the square tube. A support spring is provided between the cutting blade and the square tube. The support spring is sleeved on the top rod, and both ends are fixedly connected to the square tube and the cutting blade.

[0015] The beneficial effects of this invention are as follows:

[0016] Micro-nano bubble generators produce micro-nano bubbles, which are then discharged into aeration pipes within the river channel to aerate the water. Specifically, this device can be linearly deployed along the river channel, and the entire device can be installed on the bank using a lifting and lowering installation structure, eliminating the need for underwater installation work by personnel. It can also change the aeration depth. Then, a rotating aeration can be achieved through the micro-nano bubble discharge structure, which means that large-scale coverage aeration can be achieved without densely installing aeration pipes. At the same time, the aeration components can be placed in the river channel, thus blending into the natural landscape and reducing the visual impact on the environment.

[0017] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0018] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0019] Figure 1 This is a three-dimensional schematic diagram of the linear micro-nano aeration device of the present invention installed in a river channel;

[0020] Figure 2 This is an internal cross-sectional view of the linear micro / nano aeration device of the present invention;

[0021] Figure 3 This is a three-dimensional schematic diagram of the lifting and mounting structure of the present invention;

[0022] Figure 4 This is a three-dimensional schematic diagram of the lifting and mounting structure of the present invention from another perspective;

[0023] Figure 5 For the present invention Figure 2 A three-dimensional schematic diagram of the micro / nano bubble discharge structure at point A in the middle;

[0024] Figure 6 For the present invention Figure 2 A three-dimensional schematic diagram of the micro-nano bubble discharge structure at point A from another perspective;

[0025] Figure 7 This is a plan view of the top rod installed on the square tube of the present invention.

[0026] The following labels are shown in the attached diagram:

[0027] 1. Micro / nano bubble generator; 2. Input pipe; 3. Aeration pipe; 4. Flexible hose; 5. Fixing column; 6. Mounting plate; 7. Slide groove; 8. Clamping block; 9. Sliding block; 10. Winding column; 11. Adjusting rope; 12. Limiting ring; 13. Lifting lug; 14. Fixing lug; 15. Lifting rope; 16. Riser; 17. Rotary joint; 18. Square tube; 19. Discharge pipe; 20. Cover plate; 21. Connecting rod; 22. Rotating shaft; 23. Spring; 24. Cutting blade; 25. Riverbank; 26. Top rod; 27. Support spring. Detailed Implementation

[0028] like Figures 1-6 As shown, this invention discloses a linear micro-nano aeration device for river water, installed within a river channel. It comprises several aeration components linearly and evenly distributed along the length of the river channel, covering the entire channel. Specifically, each aeration component includes a lifting and mounting structure. This structure comprises four fixed columns 5 arranged in a rectangular pattern along the edges of two riverbanks 25. One end of each fixed column 5 is inserted and fixed to the riverbed near the riverbank 25. Mounting plates 6 are provided on two of the fixed columns 5 along the width of the river channel. The two ends of each mounting plate 6 are slidably connected to the two fixed columns 5. A fixing lug 14 is provided on the other end of each fixed column 5, with its middle portion fixedly connected to the fixed column 5. A lifting lug 13 is symmetrically provided on both ends of each mounting plate 6. One end of each lifting lug... A suspension rope 15 is symmetrically arranged between the lifting lug 13 and the fixing lug 14, fixed to the side of the mounting plate 6. One end of the suspension rope 15 is fixed to the lifting lug 13, and the other end of the suspension rope 15 is connected to the fixing lug 14. The mounting plate 6 is provided with several evenly distributed clamping blocks 8 (which can be used to fix the aeration pipe 3 through components such as clamps). Several aeration pipes 3 are provided on the clamping blocks 8. The ends of adjacent aeration pipes 3 are connected in series by hoses 4. The end of the outermost aeration pipe 3 is provided with an input pipe 2. One end of the input pipe 2 is connected to the aeration pipe 3, and the other end of the input pipe 2 is connected to the output end of the micro-nano bubble generator 1 set on the riverbank 25. Several evenly distributed risers 16 are provided along the length of the aeration pipe 3. One end of the riser 16 is connected to the interior of the aeration pipe 3, and the other end of the riser 16 is connected to the liquid in the river.

[0029] It should be noted beforehand that the micro / nano bubble generator 1 is existing technology, primarily relying on the interaction between high-pressure gas and liquid. When high-pressure gas enters the liquid through a specific device, the interaction between gas molecules and liquid molecules forms tiny bubbles within the liquid. These bubbles undergo compression and expansion during their formation, thus refining their size in a feasible manner. The core component of the micro / nano bubble generator 1 is a sophisticated gas injection system capable of stably injecting high-pressure gas into the liquid at a minute flow rate. During injection, gas molecules collide and diffuse with liquid molecules, forming initial bubble nuclei. As gas is continuously injected, these bubble nuclei gradually grow, forming tiny bubbles. The relatively long existence time of these micro / nano bubbles in the liquid allows them more opportunities to interact with surrounding substances, thereby enabling water purification.

[0030] Therefore, the working principle of this technical solution is as follows:

[0031] Before installation, four fixed columns 5 are inserted and fixed in a rectangular shape on the riverbed at the edge of the riverbank 25. Then, by controlling the length of the hoisting rope 15, the installation plate 6 is lifted above the fixed columns 5. At this time, the installation plate 6 is above the liquid surface of the river. Then, the construction personnel hoist the aeration pipe 3, so that both ends of the aeration pipe 3 are placed and fixed on the clamping block 8 respectively, until several aeration pipes 3 are installed. After installation, the ends of several aeration pipes 3 are connected in series through the hose 4. Then, one end of the aeration pipe 3 is connected to the micro-nano bubble generator 1 through the input pipe 2. Finally, by controlling the length of the hoisting rope 15, all the installed components such as the aeration pipe 3 can be sunk to the designated depth in the river to perform aeration operation on the water in the river.

[0032] The advantages of this setup are as follows: First, by lifting the mounting plate 6 and other components above the river surface for the installation of components such as the aeration pipe 3, it avoids the need for workers to dive or install the aeration pipe 3 on the riverbed, greatly simplifying the installation process of the aeration assembly. Second, by connecting adjacent aeration pipes 3 with flexible hoses 4 instead of making them a single unit, the weight of the aeration pipe 3 is reduced during each installation, allowing it to be installed by hoisting or transporting it by small boat. Finally, after the aeration assembly structure is installed, most of the components are submerged in the river, minimizing any visual impact on the environment.

[0033] In one feasible embodiment, the mounting plate 6 has a groove 7 along its length, and a slider 9 is provided in the groove 7. One end of the slider 9 is fixedly connected to the bottom surface of the clamping block 8, that is, the slider 9 is slidably connected to the mounting plate 6. Both ends of the mounting plate 6 are provided with winding posts 10, and the winding posts 10 are provided with adjusting ropes 11. The two ends of the adjusting ropes 11 are respectively wound around the winding posts 10. The adjusting ropes 11 pass through the middle of the clamping block 8, and the clamping block 8 is slidably connected to the adjusting ropes 11. Limiting rings 12 are provided on the connecting ropes on both sides of the clamping block 8. The limiting rings 12 are detachably connected to the adjusting ropes 11 and are used to limit the position of the clamping block 8 on the adjusting ropes 11.

[0034] The working principle of this solution is as follows:

[0035] When installing the aeration pipe 3, the adjusting rope 11 on one side of the riverbank 25 can be pulled to make several clamping blocks 8 slide under the pulling action and move closer to the riverbank 25. That is, the clamping blocks 8 close to the riverbank 25 can be laid out on the clamping blocks 8 by manually placing and installing the aeration pipe 3. There is no need for long-distance hoisting operations using hoisting equipment (if the river is wide, if the clamping blocks 8 are not gathered together, hoisting equipment needs to be used for long-distance hoisting, and small boat transportation also needs to be repeated many times, resulting in low installation efficiency). After the aeration pipe 3 is installed, the adjusting rope 11 on the other side of the riverbank 25 can be pulled to reset several sliders 9, thereby driving several aeration pipes 3 to be evenly distributed, which greatly improves the installation efficiency.

[0036] Meanwhile, the setting of the limiting ring 12 can limit the position by manually sliding the slider 9 on the adjusting rope 11 and then locking it with the limiting ring 12 (the length of the adjusting rope 11 on the mounting plate 6 is fixed, that is, after adjusting the position, the position of the clamping block 8 relative to the mounting plate 6 is fixed after the adjusting rope 11 is taut). This can adjust the distance between adjacent aeration pipes 3, that is, change the position of the aeration pipe 3 sinking into the river channel, which can be adjusted according to the actual situation.

[0037] In one feasible embodiment, the fixed column 5 is retractable, allowing it to completely retract to the bottom of the liquid level, further reducing its environmental impact.

[0038] In one feasible embodiment, a micro / nano bubble discharge structure is provided at the other end of the riser 16. The micro / nano bubble discharge structure includes a rotary joint 17 connected to the end of the riser 16. A square tube 18 is provided at the output end of the rotary joint 17. One end of the square tube 18 is connected to the rotary joint 17, and the other end of the square tube 18 is closed. Several discharge pipes 19 are provided on one side of the square tube 18 perpendicular to the horizontal plane. One end of the discharge pipe 19 is connected to the interior of the square tube 18, and the other end of the discharge pipe 19 is provided with... There is a sloping surface, and a cover plate 20 is provided on the sloping surface. The cover plate 20 is fitted to the sloping surface. A connecting rod 21 is provided on one end of the cover plate 20 pointing towards the square tube 18. One end of the connecting rod 21 is fixed to the side of the discharge pipe 19. A rotating shaft 22 is provided on the other end of the connecting rod 21. The other end of the cover plate 20 is rotatably mounted on the rotating shaft 22. Several springs 23 are provided on the other end of the cover plate 20. One end of the springs 23 is fixed to the side of the square tube 18. The other end of the springs 23 is fixed to the end of the cover plate 20 where the rotating shaft 22 is located.

[0039] The working principle of the above scheme is as follows:

[0040] Micro-nano bubbles are generated by the micro-nano bubble generator 1 and transported to the discharge pipe 19 through the aeration pipe 3. Under the output pressure of the micro-nano bubbles, they impact the cover plate 20, causing it to overcome the resistance of the spring 23 and open, thus releasing micro-nano bubbles into the river channel to improve the water quality. When the input of micro-nano bubbles stops, the cover plate 20 returns to its original position under the action of the spring 23, thereby sealing the port of the discharge pipe 19 to prevent silt or impurities in the river channel from clogging the port. At the same time, the square tube 18 is installed on the riser 16 through a rotary joint. When the pressurized micro-nano bubbles are discharged from the discharge pipe 19, they will push the square tube 18 to rotate, thus achieving a rotational supply of micro-nano bubbles. The advantage of this is that the rotational supply of micro-nano bubbles can cover a larger water area and simplify the structure of this aeration device. That is, a large aeration coverage area can be achieved without dense installation. At the same time, the pressure of the micro-nano bubbles drives the square tube 18 to rotate, so that the underwater rotation does not require electronic control. This further simplifies the structure and avoids the problems of electronic components being located underwater, complicated installation, and easy immersion damage.

[0041] In one feasible embodiment, a cutting blade 24 is provided on the side of the square tube 18 opposite to the side where the discharge pipe 19 is provided. The cutting blade 24 is detachably connected to the square tube 18, for example, by snap-fit. At the same time, a pressure sensor is provided between the contact surface of the cutting blade 24 and the square tube 18. The pressure sensor is used to detect the magnitude of the pressure exerted by the cutting blade 24 on the square tube 18, and then to determine the rotation state of the square tube 18.

[0042] It should be noted that when installing this device, the components of the aquatic plants in the river channel need to be cleaned to a certain extent. After the device has been installed for a certain period of time, the aquatic plants in the river channel will slowly grow and extend, which may obstruct the rotation of the square tube 18. When the square tube 18 rotates, the cutting blade 24 on it can cut the aquatic plants to a certain extent, thus preventing the aquatic plants from continuing to grow. At the same time, it can also prevent the rotation of the square tube 18 from being obstructed, which would affect the aeration coverage area.

[0043] When the cutting blade 24 is cutting aquatic plants, the pressure it exerts on the square tube 18 will suddenly increase and then decrease. If the pressure sensor detects an increase in pressure at a certain point and it does not change for a long time, it means that the rotation of the square tube 18 is obstructed at that point, the cutting blade 24 is constantly acting on the aquatic plants and cannot cut them. If the rotation is obstructed at multiple points, it can be cleared by lifting it with the hoisting rope 15 before it can be put back into the river for use. That is, the setting of the pressure sensor can monitor the rotation and aeration status of the square tube 18 in the river and improve the aeration effect.

[0044] like Figure 7 As shown, in one feasible embodiment, the cutting blade 24 is provided with a plurality of push rods 26 on the surface connected to the square tube 18. The number of push rods 26 is the same as the number of discharge pipes 19 provided on one square tube 18. One end of the push rod 26 is fixed to the cutting blade 24, and the other end of the push rod 26 passes through the square tube 18 and is located between the cover plate 20 and the square tube 18. A support spring 27 is provided between the cutting blade 24 and the square tube 18. The support spring 27 is sleeved on the push rod 26 and its two ends are fixedly connected to the square tube 18 and the cutting blade 24.

[0045] When the cutting blade 24 is blocked by aquatic plants and cannot cut, the support spring 27 is compressed under the thrust of the micro-nano bubbles. This causes the push rod 26 to slide backward and abut against one end of the cover plate 20, which in turn pushes the cover plate 20 to rotate and move towards the end of the discharge pipe 19. This reduces the outlet of the discharge pipe 19, thereby reducing the discharge flow rate and increasing the discharge pressure. This increases the pressure that pushes the square tube 18 to rotate, thus providing a greater thrust to the cutting blade 24, which helps to cut the water tank. After cutting, the cutting blade 24 and the cover plate 20 are reset under the action of the support spring 27.

[0046] In one feasible approach, a rectangular mesh cover is provided on the outside of the aeration pipe 3, which covers the aeration pipe 3 and the components installed on it. Each aeration pipe 3 is individually covered with a rectangular mesh cover, which has several water-permeable holes to facilitate contact between micro-nano bubbles and river water. The purpose is to prevent river organisms, such as fish, from getting close to components such as the cutting blade and causing harm to aquatic life.

[0047] In one feasible embodiment, the upper end of the fixed column 5 is provided with a lifting component, which acts on the suspension rope 15 to lift and lower the mounting plate 6. The lifting component is preferably a hand-cranked lifting component, which is existing technology and will not be described in detail here.

[0048] In one feasible approach, a high-pressure water pump is also installed on the riverbank 25 of the micro-nano bubble generator 1. The output end of the high-pressure water pump is equipped with a connector that connects to the input pipe 2. When the rotation of the square tube 18 is obstructed, high-pressure water can be input into the discharge pipe 19 by connecting the end of the aeration pipe 3 to the high-pressure water pump, thereby increasing the rotational thrust of the square tube 18, which in turn allows the cutting blade 24 to have a greater force to cut the aquatic plants, allowing the square tube 18 to break free from the obstruction of the aquatic plants. Thus, the high-pressure water pump can first remove the rotational restriction of the aquatic plants on the square tube 18. After the high-pressure water pump becomes ineffective, the lifting and cleaning operation can then be carried out.

[0049] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A linear micro-nano aeration device for river water bodies, arranged in a river, characterized in that: The utility model provides a river aeration device, including linearly and evenly arranged a plurality of aeration assemblies in river channel, the aeration assembly includes the lifting installation structure, the lifting installation structure includes four fixed columns (5) that are rectangularly distributed in the edge of two side river banks (25), one end of fixed column (5) is inserted and is fixed on the riverbed of river channel near river bank (25), two fixed columns (5) in the width direction of river channel are equipped with mounting plate (6), both ends of mounting plate (6) are slidably connected on two fixed columns (5) respectively, the other end of fixed column (5) is equipped with fixed lug (14), the middle part of fixed lug (14) is fixedly connected on fixed column (5), the both ends of mounting plate (6) are symmetrically equipped with lifting lug (13), one end of lifting lug (13) is fixed on the side of mounting plate (6), lifting lug (13) and fixed lug (14) are symmetrically equipped with lifting rope (15), one end of lifting rope (15) is fixed on lifting lug (13), the other end of lifting rope (15) is connected on fixed lug (14), mounting plate (6) is equipped with a plurality of evenly distributed clamping blocks (8), a plurality of aeration pipes (3) are equipped on clamping block (8), the end portion between adjacent aeration pipe (3) is connected by hose (4), the end portion of the outermost aeration pipe (3) is equipped with input pipe (2), one end of input pipe (2) is communicated with aeration pipe (3), the other end of input pipe (2) is communicated with the output end of micro-nano bubble generator (1) arranged on river bank (25), the length direction of aeration pipe (3) is equipped with a plurality of evenly distributed risers (16), one end of riser (16) is communicated with the inside of aeration pipe (3), the other end of riser (16) is communicated with the liquid in river channel, The length direction of mounting plate (6) is equipped with sliding groove (7), sliding groove (7) is equipped with sliding block (9) in, one end of sliding block (9) is fixedly connected with the bottom of clamping block (8), both ends of mounting plate (6) are equipped with winding post (10), adjusting rope (11) is equipped on winding post (10), both ends of adjusting rope (11) are wound and arranged on winding post (10) respectively, adjusting rope (11) passes through the middle part of clamping block (8) and is arranged, and clamping block (8) is slidably connected on adjusting rope (11), limiting ring (12) is arranged on the connecting rope of both sides of clamping block (8), limiting ring (12) is detachably connected on adjusting rope (11), limiting ring (12) is used to limit the position of clamping block (8) on adjusting rope (11).

2. The linear micro-nano aerator for river water body according to claim 1, characterized in that: The fixed column (5) is telescopic.

3. The linear micro-nano aerator for river water body according to claim 1, characterized in that: Another end of the riser (16) is provided with a micro-nano bubble discharging structure, the micro-nano bubble discharging structure comprises a rotating joint (17), the rotating joint (17) is connected to the end of the riser (16), one end of the square tube (18) is communicated with the rotating joint (17), the other end of the square tube (18) is closed, a plurality of discharging pipes (19) are arranged on the side of the square tube (18) perpendicular to the horizontal plane, one end of the discharging pipe (19) is communicated with the inside of the square tube (18), the other end of the discharging pipe (19) is provided with an inclined plane, the inclined plane is provided with a cover plate (20), the cover plate (20) is arranged on the inclined plane, the cover plate (20) is provided with a connecting rod (21) on the end pointing to the square tube (18), one end of the connecting rod (21) is fixed on the side of the discharging pipe (19), the other end of the connecting rod (21) is provided with a rotating shaft (22), the other end of the cover plate (20) is rotatably arranged on the rotating shaft (22), a plurality of springs (23) are arranged on the other end of the cover plate (20), one end of the spring (23) is fixed on the side of the square tube (18), the other end of the spring (23) is fixed on the end of the cover plate (20) provided with the rotating shaft (22).

4. The linear micro-nano aerator for river water body according to claim 3, characterized in that: The square tube (18) provided on the aeration pipe (3) is provided with a cutting blade (24) on the side opposite to the discharging pipe (19), the cutting blade (24) is detachably connected to the square tube (18), a pressure sensor is arranged between the contact surface of the cutting blade (24) and the square tube (18), the pressure sensor is used to detect the pressure of the cutting blade (24) acting on the square tube (18), and then the rotating state of the square tube (18) is determined.

5. The linear micro-nano aerator for river water body according to claim 1, characterized in that: The upper end of the fixed column (5) is provided with a lifting assembly, the lifting assembly acts on the lifting rope (15) to lift and lower the mounting plate (6).

6. The linear micro-nano aerator for river water body according to claim 1, characterized in that: The river bank (25) of the micro-nano bubble generator (1) is also provided with a high-pressure water pump, and the output end of the high-pressure water pump is provided with a connector connected with the input pipe (2).

7. The linear micro-nano aerator for river water body according to claim 4, characterized in that: The outer side of the aeration pipe (3) is provided with a rectangular mesh cover, and the rectangular mesh cover covers the aeration pipe (3) and the components arranged thereon.

8. The linear micro-nano aerator for river water body according to claim 4, characterized in that: The surface of the cutting blade (24) connected with the square tube (18) is provided with a jack (26), one end of the jack (26) is fixed on the cutting blade (24), the other end of the jack (26) penetrates the square tube and is located between the cover plate (20) and the square tube (18), and a supporting spring (27) is arranged between the cutting blade (24) and the square tube (18), the supporting spring (27) is sleeved on the jack (26) and both ends are fixedly connected to the square tube (18) and the cutting blade (24).

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