Aeration device for ecological restoration of water body

Abstract

The present application belongs to the technical field of water ecological restoration equipment, and particularly relates to an aeration device for water ecological restoration, which comprises an artificial floating island and an aeration unit arranged on the surface of the artificial floating island. The aeration unit comprises a micro-nano bubble generator fixedly installed on the surface of the artificial floating island and a plurality of gas conveying main pipes in communication with the output end of the micro-nano bubble generator. The surface of the artificial floating island is fixed with pipe winders for winding each gas conveying main pipe respectively. The plurality of pipe winders are arranged in an array along the length direction and form an integrated structure. Each gas conveying main pipe is wound on the corresponding pipe winder, and the end of each gas conveying main pipe away from the micro-nano bubble generator is connected with a gravity block. The surface of each gas conveying main pipe is in communication with a plurality of gas conveying branch pipes. The surface of each gravity block is connected with a water depth sensor. The technical scheme can effectively solve the problem that the existing aeration assembly cannot simultaneously aerate different water depths of the entire lake reservoir.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of water ecological restoration equipment, and particularly relates to an aeration device for water ecological restoration. BACKGROUND

[0002] Water aeration is a process of increasing the dissolved oxygen content in water by injecting air into the water, which has multiple benefits for the ecological health and water quality improvement of the water body, because the increase of the dissolved oxygen content in the water can provide necessary conditions for the survival and reproduction of a large number of microorganisms in the water body, which can decompose organic matter in the water and reduce pollutants, and aeration can also inhibit the growth of algae in the water, improve water quality, and promote water circulation, etc. Therefore, at present, water ecological restoration of reservoirs, lakes and rivers mostly adopts the aeration method, for example, a multi-dimensional aeration device is disclosed in Chinese patent (Patent Publication No. CN114751533A), which is designed by connecting a central pipe, an outer pipe, a propeller, a water jet pipe and a concave plate into a whole module, so that the water at the surface, middle and bottom layers of the water body can be mixed with air in their own unique way during rotation, thereby realizing multi-dimensional aeration of the water body. Although this invention can solve the problem of multi-dimensional aeration, this device is fixed at the bottom of the water body by a support rod, and the whole platform cannot be moved, so the aeration area is limited and it is not suitable for large water bodies such as lakes and reservoirs.

[0003] Alternatively, a water ecological restoration device is disclosed in Chinese patent (Patent Publication No. CN112744933A), which aeration components are arranged on the main box to aerate the bottom of the water body, and the traveling assembly drives the main box to move on the water surface, thereby realizing large-area aeration, and the device is powered by collecting solar energy, effectively reducing the cost of water body restoration. Although this device can solve the problems of the above-mentioned platform that cannot move and the small aeration range, the aeration components are connected by a hose and can only aerate the bottom of the water body, and cannot aerate the middle and bottom layers of the water body, so the aeration range is also limited.

[0004] Of course, there are other water body restoration aeration devices, but they do not solve the problem of aeration of different water depths of the whole lake (a lake or a reservoir, consistent hereinafter) and the limited aeration range at the same time. SUMMARY

[0005] Therefore, the purpose of the present application is to provide an aeration device for water ecological restoration, which solves the problem that the existing aeration components cannot simultaneously aerate different water depths of the whole lake.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0007] An aeration device for ecological restoration of water body, comprising an artificial floating island and an aeration unit arranged on the surface of the artificial floating island, the aeration unit comprising a micro-nano bubble generator fixedly installed on the surface of the artificial floating island and a plurality of gas conveying main pipes in communication with the output end of the micro-nano bubble generator, the surface of the artificial floating island being fixed with a pipe winder for winding each gas conveying main pipe respectively, a plurality of the pipe winders being arranged in an array along the length direction thereof and forming an integrated structure, each of the gas conveying main pipes being wound on the corresponding pipe winder respectively, and each of the gas conveying main pipes being connected with a gravity block at the end away from the micro-nano bubble generator, the surface of each of the gas conveying main pipes being in communication with a plurality of gas conveying branch pipes arranged at equal intervals along the length direction of the gas conveying main pipe, and the surface of each of the gravity blocks being connected with a water depth sensor.

[0008] Further, each of the gravity blocks is connected with a swing unit, the swing unit comprising a movable shell and a plurality of swing leaves rotatably arranged on the movable shell, the movable shell being rotatably connected with the adjacent two gravity blocks, and the rotation center line of the movable shell coinciding with the horizontal symmetry axis thereof, each of the swing leaves being arranged in the vertical direction and being uniformly spaced along the length direction of the movable shell, the upper and lower ends of each of the swing leaves being rotatably connected with the surface of the movable shell, and the surface of each of the movable shells being provided with a first driving member for driving the swing leaves to rotate in the vertical direction.

[0009] Further, one side surface of the artificial floating island is connected with an auxiliary floating island arranged opposite to the pipe winder, the surface of the auxiliary floating island being slidably connected with a sliding block movably arranged on the horizontal plane, the sliding block being connected with a second driving member for driving the sliding block to move along the length direction of the movable shell, the second driving member being fixed on the surface of the auxiliary floating island, each of the movable shells being connected with a pull rope between the surface thereof and the sliding block, and the end of the pull rope away from the movable shell being connected with a winding roller coaxially arranged on one side of the pipe winder after being guided by the sliding block, the winding roller being synchronously rotatable with the pipe winder.

[0010] Further, a high-pressure water pump is in communication between the output end of the micro-nano bubble generator and the gas conveying main pipe, the high-pressure water pump being fixedly installed on the surface of the artificial floating island, the output end of each of the gas conveying branch pipes being in communication with a movable ball, the surface of each of the movable balls being provided with two water outlets arranged opposite to each other on the horizontal plane and arranged along the length direction of the movable shell, and the interior of each of the movable balls being provided with a regulating assembly for regulating the reciprocating intermittent water discharge of the two water outlets.

[0011] Further, the regulating assembly comprises a rotating shaft arranged in the movable ball in the vertical direction and a plurality of circumferentially spaced baffles arranged on the lateral surface of the rotating shaft, the vertical axis of the rotating shaft coincides with the center line of the movable ball, one side surface of each baffle is opposite to the output end of the gas branch pipe after rotating by a certain angle, and the high-pressure water flow emitted from the output end of the gas branch pipe pushes the corresponding baffle and drives the rotating shaft to rotate, wherein the baffle block reciprocatingly and intermittently abuts against two water outlets is connected between two adjacent baffles, the side surface of the baffle block abuts against the inner surface of the movable ball, and an overflow valve is arranged at each water outlet.

[0012] Further, the outer surface of the movable ball is connected with a plurality of horizontally arranged fins, and the plurality of fins are correspondingly arranged in pairs and symmetrically arranged about the vertical axis of the movable ball.

[0013] Further, the bottom of the artificial floating island is connected with a propulsion unit driving the movement of the artificial floating island, a visual sensor and a water depth detection device are mounted on the surface of the artificial floating island, the propulsion unit, the visual sensor, the water depth detection device, the water depth sensor, the micro-nano bubble generator, the high-pressure water pump, the first driving member and the second driving member are electrically connected with a control unit, the control unit is electrically connected with a signal transmitting unit, and the control unit and the signal transmitting unit are arranged on the surface of the artificial floating island.

[0014] The beneficial effects of the present application are:

[0015] 1、The micro-nano bubble generator is used as an aeration equipment in the present application, compared with the existing aeration equipment, the micro-nano bubbles rise slowly in water, can stay in water for a longer time, increase the contact time with water, can effectively improve the dissolved oxygen content during aeration, and when the artificial floating island moves uniformly on the water surface, by adjusting the rotation angle of the swing leaf and the position of the sliding block, the horizontal aeration range of each gas branch pipe at different water depths can be effectively improved, the aeration dead angle is reduced, and the aeration efficiency is improved.

[0016] 2、By arranging the movable ball at the output end of each gas branch pipe, the regulating assembly in the movable ball cooperates with the high-pressure water pump to make the movable ball in water reciprocate horizontally, further improve the horizontal swinging range on the basis of the swinging of the gas branch pipe, further reduce the aeration dead angle, and the visual sensor, signal transmitting unit and other electronic devices are arranged on the artificial floating island, so that the staff can remotely control the artificial floating island and the lake and reservoir for aeration, reduce the burden of the staff and the labor cost, and adjust the position of the gravity block through the water depth sensor and the water depth detection device, so as to ensure the best operating position of the aeration equipment.

[0017] Additional advantages, objects, and features of the application will be set forth in part by the description that follows, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] To make the objectives, technical solutions and beneficial effects of the present application clearer, the present application is described below with the help of the following drawings:

[0019] Figure 1 Schematic diagram of the overall structure of the artificial floating island of the present application Figure 1 ;

[0020] Figure 2 Schematic diagram of the overall structure of the artificial floating island of the present application Figure 2 ;

[0021] Figure 3 Schematic diagram of the overall structure of the artificial floating island of the present application Figure 1 ;

[0022] Figure 4 Schematic diagram of the overall structure of the artificial floating island of the present application

[0023] Figure 5 Schematic diagram of the overall structure of the artificial floating island of the present application Figure 1 ;

[0024] Figure 6 Schematic diagram of the overall structure of the artificial floating island of the present application Figure 2 ;

[0025] Figure 7 Schematic diagram of the overall structure of the artificial floating island of the present application

[0026] Figure 8 Schematic diagram of the overall structure of the artificial floating island of the present application Figure 7 ;

[0027] In the drawings, the following signs are marked:

[0028] 1 artificial floating island, 2 micro-nano bubble generator, 3 gas conveying main pipe, 4 pipe coiler, 5 first driving motor, 6 gravity block, 7 gas conveying branch pipe, 8 swing unit, 801 movable shell, 802 swing leaf, 803 driving gear, 804 rack, 805 driven gear, 806 second driving motor, 9 auxiliary floating island, 10 sliding block, 11 third driving motor, 12 reciprocating screw rod, 13 pull rope, 14 guide wheel, 15 winding roller, 16 high-pressure water pump, 17 movable ball, 18 water outlet, 19 regulation and control assembly, 1901 rotating shaft, 1902 baffle, 1903 stop block, 20 solar panel, 21 fin. DETAILED DESCRIPTION

[0029] As Figures 1-8As shown,

[0030] The utility model provides an aeration device for water body ecological restoration, including artificial floating island 1 and the aeration unit of setting on the surface of artificial floating island 1, the aeration unit includes the micro -nano bubble generator 2 of being fixedly installed on the surface of artificial floating island 1 by bolt and the three gas transmission main pipes 3 of being communicated with the output end of micro -nano bubble generator 2, the surface of artificial floating island 1 is fixed with the pipe coiler 4 for winding every gas transmission main pipe 3 respectively by bolt, three the pipe coiler 4 is arrayed along its length direction and is composed of integral structure, the axis between adjacent pipe coiler 4 is in the same straight line, and adjacent pipe coiler 4 is connected by bolt fixedly, and the integral structure of being composed of a plurality of pipe coiler 4 is connected with the first drive motor 5 of rotating it, the first drive motor 5 is fixedly installed on the surface of artificial floating island 1 by bolt, and the transmission connection between the output end of first drive motor 5 and pipe coiler 4 is carried out through sprocket chain, every gas transmission main pipe 3 is wound on the corresponding pipe coiler 4 respectively, and the end of every gas transmission main pipe 3 away from micro -nano bubble generator 2 is connected with gravity block 6, gravity block 6 is spherical and is made of metal material, the surface of every gas transmission main pipe 3 is communicated with a plurality of gas transmission branch pipes 7, and a plurality of gas transmission branch pipes 7 are equidistantly spaced along the length direction of gas transmission main pipe 3, the surface of every gravity block 6 is connected with water depth sensor.

[0031] When needing to aerate lake and reservoir, the artificial floating island 1 is moved to the lake and reservoir, and the first drive motor 5 drives the pipe coiler 4 to lower the gas transmission main pipe 3 by an appropriate length, the gravity block 6 drives one end of the gas transmission main pipe 3 to sink into the lake and reservoir, and the gravity block 6 does not need to be lowered to the bottom of the lake and reservoir, but a certain distance is kept between the gravity block 6 and the bottom of the lake and reservoir to prevent the gravity block 6 from being entangled with the sundries at the bottom of the lake and reservoir and affecting the movement of the artificial floating island 1; when the gravity block 6 is lowered to the appropriate water depth, the artificial floating island 1 is moved and the micro -nano bubble generator 2 is started, while the artificial floating island 1 moves at a uniform speed, the artificial floating island 1 drags the gravity block 6 through the three gas transmission main pipes 3, so that the three gas transmission main pipes 3 are kept in a certain degree of straight state, and at this time, each gas transmission main pipe 3 is in an inclined state in the vertical plane (the inclined state is combined with the figure) Figure 1 and Figure 2The output ends of each gas supply branch pipe 7 are arranged at equal distances in the horizontal plane while having a height difference, and the micro-nano bubbles generated by the micro-nano bubble generator 2 are output to the lake through the multiple gas supply branch pipes 7, so that the water at different depths in the lake can be uniformly aerated and oxygenated, the dissolved oxygen content of the entire water body can be effectively improved, the water quality can be improved, the vertical mixing of the water body can be promoted, the dissolved oxygen level of the bottom water body can be improved, the generation of anaerobic conditions in the bottom layer can be inhibited, and the release of internal source pollutants such as nitrogen and phosphorus nutrients can be reduced. In addition, the micro-nano bubble generator 2 generates bubbles with small sizes and slow rising speed, thereby increasing the contact time between the bubbles and the water body, improving the mass transfer efficiency and dissolution efficiency of oxygen, and more effectively improving the dissolved oxygen level of the bottom water body in the deep water lake, which is helpful to improve the ecological environment of the entire water body. When the artificial floating island 1 moves to different water depths, the first driving motor 5 can be controlled again to drive the pipe winder 4 to adjust the length of the gas supply main pipe 3 extending into the lake, so as to dynamically adjust the aeration depth and effectively improve the aeration range. When the trajectory of the movement of the artificial floating island 1 passes through the water surface of the entire lake, the technical effect of simultaneously aerating the water at different depths in the entire lake is achieved, and the aeration efficiency is greatly improved.

[0032] In the embodiment, each of the adjacent two gravity blocks 6 is connected with a swing unit 8, the swing unit 8 comprises a movable shell 801 and a plurality of swing leaves 802 rotatably arranged on the movable shell 801, the movable shell 801 is rectangular, and a rectangular through hole is formed in the surface of the movable shell 801, the outer surface of the movable shell 801 is rotatably connected between the adjacent two gravity blocks 6, and the rotation center line of the movable shell 801 coincides with the horizontal symmetry axis thereof, each of the swing leaves 802 is arranged in the rectangular through hole in the vertical direction and is uniformly and spacedly arranged along the length direction of the movable shell 801, the upper and lower ends of each of the swing leaves 802 are rotatably connected with the surface of the movable shell 801, and the surface of each of the movable shells 801 is provided with a first driving member for simultaneously driving each of the swing leaves 802 to rotate in the vertical direction; wherein the first driving member comprises a second driving motor 806, a driving gear 803 and a rack 804 which are power-connected with the output end of the second driving motor 806, one end of each of the swing leaves 802 is connected with a driven gear 805, the rack 804 is simultaneously engaged with the driving gear 803 and each of the driven gears 805, and the rack 804 slides in the horizontal direction, the second driving motor 806 drives the rack 804 to slide through the driving gear 803, the rack 804 drives each of the driven gears 805 to rotate, and the angle of each of the swing leaves 802 is simultaneously adjusted.

[0033] The arrangement of the movable shell 801 can effectively prevent the adjacent gas supply main pipe 3 from being entangled when moving underwater, and when the artificial floating island 1 moves uniformly on the surface of the lake or reservoir, the position of each swing leaf 802 is adjusted by the first driving member, so that the water flow can pass between any two adjacent swing leaves 802 with minimal resistance, and at this time the swing leaf 802 is stable in the current position under the action of the water flow, which can maintain the stability of the movable shell 801 and each gas supply main pipe 3 when moving; when the position of each swing leaf 802 is adjusted by controlling the first driving member, the surface of the swing leaf 802 blocks the water flow, causing the movable shell 801 to move laterally in the horizontal plane, and driving each gas supply main pipe 3 to move synchronously, which can improve the aeration range of each gas supply branch pipe 7 in the horizontal plane. By controlling the first driving member to drive each swing leaf 802 to reciprocate, each gas supply main pipe 3 can be indirectly driven to reciprocate in the lateral range, and the swing angle is α° as marked in Figure 4 which effectively improves the aeration range at different water depths.

[0034] In this embodiment, the surface of the artificial floating island 1 is connected with an auxiliary floating island 9 arranged opposite to the pipe winder 4, and the auxiliary floating island 9 is fixedly connected with the artificial floating island 1 through two oppositely arranged connecting rods, which are symmetrically arranged about the artificial floating island 1. The surface of the auxiliary floating island 9 is slidingly connected to a sliding block 10 moving on the horizontal plane. The sliding block 10 is connected with a second driving member driving it to move along the length direction of the movable shell 801. The second driving member includes a third driving motor 11 fixed on the surface of the auxiliary floating island 9 by bolts and a reciprocating screw rod 12 power-connected with the output end of the third driving motor 11. The reciprocating screw rod 12 is arranged in the horizontal direction and penetrates the sliding block 10, and is threadedly connected with the sliding block 10. Each movable shell 801 is connected with a pull rope 13 between its surface and the sliding block 10. The surface of the sliding block 10 facing the artificial floating island 1 is rotatably connected with two guide wheels 14 matched with the pull rope 13. Each pull rope 13 is connected with a winding roller 15 after being guided by the guide wheel 14 away from the movable shell 801. Each winding roller 15 is coaxially arranged on the pipe winder 4 and rotates synchronously with the pipe winder 4.

[0035] In combination with the drawings, the surface of each movable shell 801 is further improved in stability when moving underwater by the pull rope 13, that is, even if the moving speed of the artificial floating island 1 is low and the movable shell 801 cannot be stably pulled, the pull rope 13 can keep the movable shell 801 in a stable state through the cooperation of the gravity block 6 and the pull rope 13. When the first driving member drives the movable shell 801 to reciprocate, the second driving member is controlled to drive the third driving motor 11 to rotate the reciprocating screw rod 12 and drive the sliding block 10 to move along the axis of the reciprocating screw rod 12. The direction of the movement of the sliding block 10 is the same as the direction of the movement of the movable shell 801, which can improve the stability of the movement of the movable shell 801, limit and guide the movement of the movable shell 801, and make the movable shell 801 move along the expected trajectory, prevent the movable shell 801 from irregularly moving when a sudden situation occurs underwater, and further improve the swinging angle of each output main pipe 3 in the transverse direction (increase the angle of α) by driving the movable shell 801 to synchronously move laterally through the sliding block 10, and reduce the aeration dead angle.

[0036] In the embodiment, a high-pressure water pump 16 is in communication between the output end of the micro-nano bubble generator 2 and the gas conveying main pipe 3. The high-pressure water pump 16 is fixedly installed on the surface of the artificial floating island 1 by bolts. The output end of each of the gas conveying branch pipes 7 is in communication with a movable ball 17. Two water outlets 18 are arranged on the surface of each movable ball 17 and are oppositely arranged in a horizontal plane. The two water outlets 18 are arranged along the length direction of the movable shell 801. The inside of each movable ball 17 is provided with a regulating assembly 19 for regulating the reciprocating intermittent water outlet of the two water outlets 18.

[0037] The high-pressure water pump 16 can improve the water pressure at the outlet end of each gas conveying branch pipe 7. The output high-pressure water flow enters the movable ball 17 and is reciprocatingly and intermittently discharged from the two water outlets 18 under the action of the regulating assembly 19. When the high-pressure water flow is discharged from one of the water outlets 18, the reaction force will push the movable ball 17 to move in the opposite direction for a distance. Conversely, when the high-pressure water flow is discharged from the other water outlet 18, the movable ball 17 moves in the opposite direction as before. When the high-pressure water flow is intermittently discharged from the two water outlets 18, the movable ball 17 can reciprocatingly swing in the transverse direction, further expand the aeration range, and combine the reciprocating swinging of each gas conveying main pipe 3 driven by the movable shell 801 to effectively reduce the aeration dead angle in the transverse range.

[0038] In the embodiment, the regulating assembly 19 comprises a rotating shaft 1901 arranged in the movable ball 17 in the vertical direction and a plurality of baffle plates 1902 circumferentially and spaced apart on the lateral surface of the rotating shaft 1901, a gap is formed between the lateral surface of each baffle plate 1902 and the inner wall of the movable ball 17, the vertical axis of the rotating shaft 1901 coincides with the center line of the movable ball 17, one side surface of each baffle plate 1902 is rotated by a certain angle and corresponds to the output end of the gas delivery branch pipe 7, and the high-pressure water flow emitted from the output end of the gas delivery branch pipe 7 pushes the corresponding baffle plate 1902 and drives the rotating shaft 1901 to rotate (the gas delivery branch pipe 7 is arranged eccentrically relative to the movable ball 17), wherein the two adjacent baffle plates 1902 are connected with a stop block 1903 reciprocatingly and intermittently abutting against the two water outlets 18, one side surface of the stop block 1903 is arc-shaped and abuts against the inner surface of the movable ball 17, when the rotating shaft 1901 rotates and drives the stop block 1903 to rotate, the arc-shaped surface of the stop block 1903 will shield one of the water outlets 18, and each water outlet 18 is provided with an overflow valve (the overflow valve is shielded in the figure and is not shown).

[0039] As shown in the figure, the water flow output by the high-pressure water pump 16 enters the movable ball 17 through the gas delivery main pipe 3 and the gas delivery branch pipe 7 and impacts the baffle plate 1902, so that the baffle plate 1902 drives the rotating shaft 1901 to rotate, at the same time, part of the high-pressure water flow fills the inside of the movable ball 17, when the water filling in the inside of the movable ball 17 reaches a certain degree and a certain water pressure, the stop block 1903 rotates by a certain angle and shields one of the water outlets 18, the pressure in the inside of the movable ball 17 reaches a critical value (the pressure in the inside of the movable ball 17 is greater than the rated pressure of the overflow valve), at this time, the water flow in the inside of the movable ball 17 breaks through the limitation of the overflow valve and is emitted from the water outlet 18 not shielded by the stop block 1903, the reaction force generated by the water flow emission pushes the movable ball 17 to move in the opposite direction, similarly, when the stop block 1903 continues to rotate and shields the other water outlet 18, the water flow emitted from the water outlet 18 not shielded also drives the movable ball 17 to move, through the intermittent reciprocating shielding of the stop block 1903 on the two water outlets 18, the reciprocating swing of the movable ball 17 in the horizontal plane is realized, the aeration range is effectively improved, and the reciprocating swing of the three main pipes 3 can maximize the aeration range to cover the route of the artificial floating island 1.

[0040] In the embodiment, the outer surface of the movable ball 17 is connected with a plurality of horizontally arranged fins 21, and the plurality of fins 21 are correspondingly arranged in pairs and symmetrically about the vertical axis of the movable ball 17, the surface of each fin 21 is polished smooth, the plurality of fins 21 can guide the movable ball 17 in the horizontal plane and improve the motion stability of the movable ball 17 when it is dragged, so as to ensure the stability of the movable ball 17 when it moves horizontally.

[0041] In the embodiment, the bottom of the artificial floating island 1 is connected with a propelling unit (not shown in the figure) for driving the movement of the artificial floating island 1, which can adopt a plurality of propellers or a pneumatic propelling device, etc., and the surface of the artificial floating island 1 is provided with a visual sensor (which can adopt a high-definition camera) and a water depth detection device (which can adopt a single-beam echo sounder), and the propelling unit, the visual sensor, the water depth detection device, the water depth sensor, the micro-nano bubble generator 2, the high-pressure water pump 16, the first driving member and the second driving member are collectively electrically connected with a control unit (which can adopt a single-chip microcomputer as a controller), and the control unit is electrically connected with a signal transmitting unit (which can adopt a 5G, Wi-Fi or other wireless transmission technology), and the control unit and the signal transmitting unit are arranged on the surface of the artificial floating island 1, and the surface of the artificial floating island 1 is further provided with a solar panel 20 for supplying power to the electronic devices on the artificial floating island 1.

[0042] The staff can remotely control the movement of the artificial floating island 1 on the lake or reservoir through the signal transmitting unit, and observe the situation around the artificial floating island 1 through the visual sensor and timely adjust the position, and can detect the depth of the lake or reservoir at the current position of the artificial floating island 1 in real time through the water depth detection device, and combine the data collected by the water depth sensor on the gravity block 6 to realize real-time understanding and adjustment of the position of the gravity block 6 under the water, and can also control the swing of each gas conveying main pipe 3, thereby improving the automation degree of the lake or reservoir aeration and reducing the burden of the staff.

[0043] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the present application and are not limiting, and although the present application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present application.

Claims

1. An aeration device for water body ecological restoration, comprising an artificial floating island (1) and an aeration unit disposed on the surface of the artificial floating island (1), characterized in that: The aeration unit includes a micro-nano bubble generator (2) fixedly installed on the surface of the artificial floating island (1) and multiple air supply mains (3) connected to the output end of the micro-nano bubble generator (2). The surface of the artificial floating island (1) is fixed with tube reels (4) for winding up each air supply main (3). Multiple tube reels (4) are arranged in an array along their length direction and form an integrated structure. Each air supply main (3) is wound on the corresponding tube reel (4). Each air supply main (3) is connected to a gravity block (6) at the end away from the micro-nano bubble generator (2). The surface of each air supply main (3) is connected to multiple air supply branch pipes (7). The multiple air supply branch pipes (7) are arranged at equal intervals along the length direction of the air supply main (3). Each gravity block (6) is connected to a water depth sensor. Any two adjacent gravity blocks (6) are connected by a swing unit (8). The swing unit (8) includes a movable housing (801) and a plurality of swing blades (802) rotatably disposed on the movable housing (801). The movable housing (801) is rotatably connected to the two adjacent gravity blocks (6), and the rotation center line of the movable housing (801) coincides with its horizontal axis of symmetry. Each swing blade (802) is arranged in the vertical direction and is evenly spaced along the length of the movable housing (801). The upper and lower ends of each swing blade (802) are rotatably connected to the surface of the movable housing (801). The surface of each movable housing (801) is provided with a first driving member that drives the swing blades (802) to rotate in the vertical direction. Each of the gas supply branch pipes (7) has a movable ball (17) at its output end. Each movable ball (17) has two water outlets (18) that are arranged opposite each other on the horizontal plane. The two water outlets (18) are arranged along the length of the movable shell (801). Each movable ball (17) has a control component (19) inside for adjusting the intermittent water output of the two water outlets (18). The control component (19) includes a rotating shaft (1901) that is rotatably disposed in the movable sphere (17) in the vertical direction and a plurality of baffles (1902) that are circumferentially spaced on the circumferential surface of the rotating shaft (1901). The vertical axis of the rotating shaft (1901) coincides with the center line of the movable sphere (17). After rotating a certain angle, one side surface of each baffle (1902) corresponds to the output end of the gas supply branch pipe (7). The high-pressure water flow ejected from the output end of the gas supply branch pipe (7) pushes the corresponding baffle (1902) and drives the rotating shaft (1901) to rotate. A stop block (1903) that reciprocates and intermittently abuts against two water outlets (18) is connected between two adjacent baffles (1902). The side surface of the stop block (1903) abuts against the inner surface of the movable sphere (17). An overflow valve is provided at each water outlet (18).

2. The aeration device for water body ecological restoration according to claim 1, characterized in that: One side surface of the artificial floating island (1) is connected with auxiliary floating islands (9) that are opposite to the tube reel (4). The surface of the auxiliary floating island (9) is slidably connected to a slider (10) that moves on a horizontal plane. The slider (10) is connected to a second driving member that drives it to move along the length of the movable shell (801). The second driving member is fixed on the surface of the auxiliary floating island (9). Each surface of the movable shell (801) is connected to a pull rope (13) between it and the slider (10). The end of the pull rope (13) away from the movable shell (801) is guided by the slider (10) and connected to a winding roller (15) that is coaxially arranged on one side of the tube reel (4). The winding roller (15) rotates synchronously with the tube reel (4).

3. An aeration device for water body ecological restoration according to claim 2, characterized in that: The output end of the micro-nano bubble generator (2) is connected to the gas supply pipe (3) by a high-pressure water pump (16), which is fixedly installed on the surface of the artificial floating island (1).

4. An aeration device for water body ecological restoration according to claim 3, characterized in that: The outer surface of the movable sphere (17) is connected to a plurality of horizontally arranged fins (21), and the plurality of fins (21) are arranged in pairs and symmetrically about the vertical axis of the movable sphere (17).

5. An aeration device for water body ecological restoration according to claim 4, characterized in that: The bottom of the artificial floating island (1) is connected to a propulsion unit that drives its movement. The surface of the artificial floating island (1) is equipped with a visual sensor and a water depth detection device. The propulsion unit, visual sensor, water depth detection device, water depth sensor, micro-nano bubble generator (2), high-pressure water pump (16), first driving component and second driving component are electrically connected to a control unit. The control unit is electrically connected to a signal transmission unit. The control unit and the signal transmission unit are both located on the surface of the artificial floating island (1).

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