River water purification device and method

Abstract

The present invention discloses a river water purification device and method, wherein the river water purification device comprises a plurality of purification modules that are in the same horizontal plane and fixedly connected as one body, the purification modules; two upper and lower spaced-apart and parallel to each other circular tubes, and a mounting plate is fixedly mounted on one side of the circular tube close to the other circular tube. Beneficial effects: the river water purification device of the present application can float in the center of the river, and can be flexibly designed into various shapes according to the shape of the river to adapt to the river and avoid affecting the beauty of the river; aquatic plants are planted on the river water purification device, which does not affect the flow of water below the river water purification device and has little effect on the flood discharge capacity of the river; at the same time, the aquatic plants can grow healthily and quickly under the protection of the river water purification device, making it possible to plant aquatic plants on a large scale in the river, thereby significantly purifying the river water quality and intercepting garbage floating in the river.

Description

Technical Field

[0001] The present invention relates to the field of river water purification, and in particular to a river water purification device and method. Background Art

[0002] At present, the commonly used treatment measures for eutrophication of water bodies include chemical treatment and biological treatment. Chemical treatment generally requires the addition of drugs to the water body, which can easily cause secondary pollution to the water body. Therefore, biological treatment, that is, using aquatic plants to absorb and utilize nitrogen and phosphorus elements for metabolic activities to remove nitrogen and phosphorus nutrients from the water, has gradually become the preferred method for river water purification.

[0003] Commonly, aquatic plants are planted on the banks on both sides of the river. The planting area on the banks on both sides of the river is small, and the absorption of nitrogen and phosphorus in the water is less. Therefore, this method has no obvious effect on purifying the river water quality, and cannot intercept the garbage floating in the river.

[0004] The river channel itself has a wide area. If aquatic plants can be planted on a large scale in the river channel, rather than limited to the banks on both sides of the river channel, it can significantly purify the water quality of the river channel and intercept floating garbage in the river channel. However, planting aquatic plants on a large scale on the riverbed in the middle of the river channel is limited by the impact of water flow, and it is difficult to plant and grow aquatic plants. On the other hand, it will indirectly raise the riverbed, affecting the flood discharge capacity of the river channel and also affecting the appearance of the river channel. Therefore, it is not feasible in reality. Summary of the Invention

[0005] The main purpose of the present invention is to propose a river water purification device and method, which aims to solve the problem that the current use of aquatic plants to purify river water quality is not effective and cannot intercept floating garbage in the river.

[0006] To solve the above problems, the present invention proposes a river water purification device, comprising a plurality of purification modules located on the same horizontal plane and fixedly connected as one body, wherein the purification modules include:

[0007] Two mutually parallel and spaced-apart circular tubes are provided, one of which is fixedly mounted with a mounting plate on one side of the circular tube close to the other. The circular tubes are surrounded by a mounting space on one side of the mounting plate. A gabion cage is provided in the mounting space. The gabion cage is filled with solid blocks, and aquatic plant seeds are embedded in the solid blocks.

[0008] The open ends of the circular frame are respectively sealed and fixedly connected to the upper and lower mounting plates, thereby isolating the inner space of the circular frame from the outside world;

[0009] The battery and control unit are arranged in the inner space of the circular frame;

[0010] Each return pipe is provided with an air inlet and at least two control valves, and the multiple control valves are respectively provided at two axial ends of the return pipe and are not located on the same side of the two axial ends of the return pipe;

[0011] An air pump, the air outlet end of which is connected to the air outlet pipe, the air inlet end of which is connected to the air intake pipe, the air intake pipe is connected to the outside atmosphere, the air outlet pipe is connected to multiple branch pipes, each branch pipe is provided with a control valve 2, and each branch pipe is connected to the air inlet holes of several return pipes of the same height.

[0012] In one embodiment, the plurality of purification modules are distributed in a rectangular array, and there are at least two rows, and each branch pipe is connected to the air inlet holes of a row of meander-shaped pipes of the same height.

[0013] In one embodiment, the suction pipe is a hose, and a float is provided at the distal end of the suction pipe, so that the distal end of the suction pipe is always kept above the water surface by the float;

[0014] The floating object is provided with an antenna and a camera.

[0015] In one embodiment, a rotating shaft is provided on the purification modules of the river water purification device at both ends of the flip axis direction of the river water purification device. The rotating shaft is coaxial with the flip axis of the river water purification device. The rotating shaft is rotatably mounted on the shaft frame and can slide up and down along the shaft frame.

[0016] In one embodiment, when all the circular tubes are not filled with water, the gabion cage above the circular frame is located above the water surface, and the gabion cage below the circular frame is located below the water surface.

[0017] In addition, the present invention also proposes a river water purification method, which uses any of the above-mentioned river water purification devices to perform the following steps:

[0018] S1. Place the river water purification device horizontally on the water surface;

[0019] S2, control the air pump, control valve 1 and control valve 2 to completely submerge the river water purification device into the water, and then float the river water purification device after a period of time until the upper surface of the return tube above the return frame just protrudes from the water surface;

[0020] S3, after the seeds of the aquatic plants in the gabion cage above the return frame germinate, the air pump, control valve 1 and control valve 2 are controlled to rotate the river water purification device 180 degrees around the horizontal axis, so that the gabion cage originally located below the return frame is rotated to the top of the return frame;

[0021] S4, harvesting the aquatic plants above the return frame after they grow to a certain length;

[0022] S5, control the air pump, control valve 1 and control valve 2 to make the river water purification device turn 180 degrees around the horizontal axis, so that the gabion cage originally located below the circular frame turns to the top of the circular frame;

[0023] S6. After the aquatic plants below the circular frame grow to a certain length, the aquatic plants above the circular frame are harvested, and then S5 is repeated.

[0024] In one embodiment, when harvesting aquatic plants, the floating garbage intercepted by the aquatic plants is first cleaned away.

[0025] In one embodiment, the control air pump, control valve 1 and control valve 2 cooperate with each other to change the center of gravity of the river water purification device to cause the river water purification device to flip 180 degrees around the horizontal axis.

[0026] In one embodiment, the center of gravity of the river water purification device is changed by inflating air into a plurality of serpentine tubes of equal height, and opening a control valve to allow water to enter another plurality of serpentine tubes of equal height.

[0027] Beneficial effects: The river water purification device of the present application can float in the center of the river and can be flexibly designed into various shapes according to the shape of the river to adapt to the river and avoid affecting the beauty of the river; aquatic plants are planted on the river water purification device without affecting the water flow below the river water purification device, and have little impact on the flood discharge capacity of the river; at the same time, the aquatic plants can grow healthily and rapidly under the protection of the river water purification device, making it possible to plant aquatic plants on a large scale in the river, thereby significantly purifying the river water quality and intercepting floating garbage in the river;

[0028] The river water purification device of the present application is provided with two layers of aquatic plants, upper and lower. Compared with only one layer of aquatic plants, this design not only doubles its river water purification capacity, but also can harvest more aquatic plants and obtain more economic benefits, while also not affecting the interception of floating garbage in the river. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a schematic diagram of the structure of the purification module of the present invention Figure 1 ;

[0031] Figure 2 This is a schematic diagram of the structure of the purification module of the present invention Figure 2 ;

[0032] Figure 3 This is a schematic diagram of the structure of the purification module of the present invention Figure 3 ;

[0033] Figure 4 It is a top view of the river water purification device of the present invention;

[0034] Figure 5 This is a schematic diagram of the inversion of the river water purification device of the present invention Figure 1 ;

[0035] Figure 6 This is a schematic diagram of the inversion of the river water purification device of the present invention Figure 2 ;

[0036] Figure 7 This is a schematic diagram of the inversion of the river water purification device of the present invention Figure 3 .

[0037] The following are the descriptions of the reference numerals:

[0038] 1. Purification module; 11. Reciprocating tube; 12. Mounting plate; 13. Mounting space; 14. Reciprocating frame; 15. Gabion cage; 16. Aquatic plants; 17. Control valve 1; 18. Air inlet; 19. Screw hole; 110. Battery; 111. Control unit; 112. Air pump; 113. Air outlet pipe; 114. Branch pipe; 115. Control valve 2; 116. Intake pipe; 117. Floating objects; 118. Antenna; 119. Camera.

[0039] 2. Water surface; 3. Rotating shaft; 4. Axle frame; 5. Connecting plate; 6. Through hole. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0041] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0042] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0043] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0044] The present invention proposes a river water purification device, which can float in the center of the river and can be flexibly designed into various shapes according to the shape of the river to adapt to the river and avoid affecting the beauty of the river; aquatic plants 16 are planted on the river water purification device, which does not affect the flow of water below the river water purification device and has little impact on the flood discharge capacity of the river; at the same time, the aquatic plants 16 can grow healthily and rapidly under the protection of the river water purification device, making it possible to plant aquatic plants 16 on a large area in the river, thereby significantly purifying the river water quality and intercepting garbage floating in the river.

[0045] In addition, the river water purification device of the present invention is provided with two layers of aquatic plants 16, upper and lower. Compared with only providing one layer of aquatic plants 16, this design not only doubles its river water purification capacity, but also can harvest more aquatic plants 16, thereby obtaining more economic benefits, while also not affecting the interception of floating garbage in the river.

[0046] Specifically, in one embodiment of the invention, Figure 4 and Figure 5 As shown, the river water purification device includes a plurality of purification modules 1 that are on the same horizontal plane and fixedly connected as one body. This design facilitates the flexible design of the river water purification device into various shapes according to the shape of the river to adapt to the river and avoid affecting the beauty of the river. For example Figure 3 The multiple purification modules 1 in the river water purification device shown are distributed in a rectangular array. Figure 3 Three purification modules 1 are set in each row in the horizontal direction, and 17 purification modules 1 are set in each column in the vertical direction. In actual use, the number of purification modules 1 and the number of each row and each column can be flexibly set according to the shape of the river, but it should be ensured that there are no less than 2 columns, for example Figure 3 The three rows of purification modules 1 shown are designed to ensure that the center of gravity of the river water purification device can be changed by controlling the air pump 112, control valve 1 17 and control valve 2 115 to cooperate with each other, so that the river water purification device can be flipped 180 degrees around the horizontal axis. If the river water purification device is designed with less than two rows, the flipping function cannot be achieved.

[0047] In this embodiment, the river water purification device floats on the water surface 2 and completes a 180-degree flip on the water surface 2. In order to complete the flip smoothly, quickly and smoothly, Figure 3 and Figure 4 As shown, a rotating shaft 3 is fixedly provided on the purification module 1 at both ends of the river water purification device in the direction of the flip axis 3. The rotating shaft 3 is coaxial with the flip axis 3 of the river water purification device. The rotating shaft 3 is rotatably mounted on the shaft frame 4 and can slide up and down along the shaft frame 4. The shaft frame 4 is fixed in the river, such as fixing the lower end of the shaft frame 4 to the riverbed, or fixing the shaft frame 4 to the bridge pier. In this design, the rotating shaft 3 and the shaft frame 4 are used to limit the river water purification device so that it flips around the rotating shaft 3. At the same time, the rotating shaft 3 is flexibly raised and lowered according to the different water levels of the river in different seasons, so that the river water purification device always floats on the river water surface 2, does not affect the water flow below the river water purification device, and has little effect on the flood discharge capacity of the river.

[0048] It can be seen that the river water purification device of this embodiment can float in the center of the river and plant a large area, making it possible to plant aquatic plants 16 on a large scale in the river, greatly increasing the absorption of nitrogen and phosphorus in the water body, thereby significantly purifying the river water quality.

[0049] Specifically, in this embodiment, Figure 1-Figure 5 As shown, the purification module 1 includes two parallel and spaced-apart circular tubes 11, a circular frame 14, a battery 110, a control unit 111, a control valve 17, an air pump 112, and a control valve 2 115. A mounting plate 12 is fixedly mounted on one side of the circular tube 11 axially close to the other circular tube 11, such as Figure 1-Figure 3 The lower surface or upper surface of the circular tube 11 shown in the figure, the circular tube 11 refers to a section of pipe with both ends connected to form a closed circular cavity, and the cross section of the pipe can be either circular or Figure 5 Square shown.

[0050] In this embodiment, if Figure 1-Figure 5 As shown, after a mounting plate 12 is provided at the upper or lower end of the circular tube 11, the circular tube 11 is surrounded on one side of the mounting plate 12 to form an installation space 13. One end of the installation space 13 is sealed by the mounting plate 12, and the other end is open. This design facilitates the installation of a gabion cage 15 in the installation space 13. The gabion cage 15 can be fixedly connected to the mounting plate 12. The gabion cage 15 is used to fill solid blocks to prevent the solid blocks from falling and losing, providing a stable place for the growth of aquatic plants 16. The solid blocks include porous solid blocks such as sand, coal slag, ceramic rings, volcanic rocks, and coral bones. Seeds of aquatic plants 16 are buried in the solid blocks. The river water purification device floats on the water surface 2. After the seeds of the aquatic plants 16 germinate and grow, they can form aquatic plants 16 that can intercept garbage floating in the river.

[0051] In this embodiment, if Figure 1-Figure 5 As shown, the upper and lower open ends of the circular frame 14 are respectively sealed and fixedly connected to the upper and lower mounting plates 12, thereby isolating the inner space of the circular frame 14 from the outside world. With this design, some electronic devices that do not have waterproof properties can be placed therein, such as a battery 110 and a control unit 111. The battery 110 is used to power the control valve 1 17, the control valve 2 115, the air pump 112, the antenna 118, and the camera 119 in the purification module 1. The control unit 111 is used to receive external control signals to control the control valve 1 17, the control valve 2 115, and the air pump 112 to realize the flipping of the river water purification device.

[0052] It should be noted that the air pump 112 is not an essential component of each purification module 1. One or more air pumps 112 can be flexibly provided according to the number of purification modules 1 of the river water purification device. Figure 4 The river water purification device can be provided with two air pumps 112, which are respectively provided at both ends of the length direction of the river water purification device, so as to accelerate the movement of its center of gravity and accelerate the turning.

[0053] Furthermore, to protect the safety of the air pump 112 , the air pump 112 can be disposed in the inner space of the circular frame 14 .

[0054] In this embodiment, if Figure 1-Figure 5 As shown, gabion cages 15 are provided at the upper and lower ends of the circular frame 14, so that the river water purification device can be provided with upper and lower layers of aquatic plants 16. Compared with only providing one layer of aquatic plants 16, this design not only doubles the river water purification capacity, but also can harvest more aquatic plants 16, obtain more economic benefits, and at the same time does not affect the interception of floating garbage in the river.

[0055] In this embodiment, if Figure 1-Figure 5 As shown, each return pipe 11 is provided with an air inlet 18 and at least two control valves 17. The multiple control valves 17 are respectively provided on the upper and lower ends of the axial direction of the return pipe 11, and are not located on the same side of the axial ends of the return pipe 11. Figure 1-Figure 5 One of the two control valves 17 shown in the figure is located on the upper surface of the return tube 11, and the other is located on the lower surface of the return tube 11, and is respectively provided at the left and right ends of the return tube 11. This design can achieve the continuous and smooth filling and drainage of water in the return tube 11 during the flipping process by cooperating with the two control valves 17 until the return tube 11 flips 180 degrees.

[0056] In this embodiment, if Figure 1-Figure 5 As shown, the air outlet end of the air pump 112 is connected to the air outlet pipe 113, the air inlet end of the air pump 112 is connected to the air intake pipe 116, the air intake pipe 116 is connected to the outside atmosphere, the air outlet pipe 113 is connected to a plurality of branch pipes 114, each branch pipe 114 is provided with a control valve 115, each branch pipe 114 is connected to a plurality of air inlet holes 18 of the return pipe 11 of the same height, Figure 4 For the river water purification device shown in FIG, each branch pipe 114 is connected to the air inlet 18 of a row of equal-height return pipes 11, such as Figure 4 and Figure 5 As shown, the river water purification device has 6 rows of equal-height serpentine tubes 11, so 6 branch pipes 114 are required. By controlling the opening and closing of the control valve 2 115, it is possible to selectively inflate air into a certain row of equal-height serpentine tubes 11 and discharge water in the row of equal-height serpentine tubes 11. By controlling the different rows of equal-height serpentine tubes 11 to inflate or drain water in a certain order, the center of gravity of the river water purification device is directionally changed, thereby causing the river water purification device to flip around the horizontal axis.

[0057] Specifically, such as Figure 5 As shown, the river water purification device floats horizontally on the water surface 2. Figure 5 When the arrow direction is reversed, turn Figure 5 Water is injected into the two equal-height return pipes 11 in the left and right sides. The injection method is to open the control valves 17 on the upper and lower surfaces of the return pipe 11. Water enters the return pipe 11 from the lower control valve 17, and the air in the return pipe 11 flows out from the upper control valve 17. At the same time, if Figure 5There is water in the two rows of equal-height loop-shaped pipes 11 on the right side. Air can be added to the two rows of equal-height loop-shaped pipes 11 to drain the water in the loop-shaped pipes 11, thereby accelerating the center of gravity shift of the river water purification device and achieving rapid counterclockwise rotation of the river water purification device. The drainage method is to close the control valve 17 on the upper surface of the loop-shaped pipe 11, open the control valve 17 on the lower surface of the loop-shaped pipe 11, and start the air pump 112 to draw outside air through the outlet pipe 113 and the corresponding branch pipe 114 to inject it into the row of equal-height loop-shaped pipes 11. The water in the loop-shaped pipe 11 flows out from the control valve 17 on the lower surface of the loop-shaped pipe 11.

[0058] Wait until the river water purification device is turned counterclockwise to Figure 6 After the position is shown, the left row of the two equal-height return pipes 11 in the middle is controlled to be filled with water, and the right row of the equal-height return pipes 11 is controlled to be drained, and the Figure 6 The rightmost row of equal-height return pipes 11 at the lower end of the drain makes the river water purification device continue to Figure 6 Quickly flip counterclockwise in the direction indicated by the middle arrow. Figure 6 The method of filling the return pipe 11 with water is still to open the control valves 17 at the upper and lower ends of the return pipe 11, so that water enters the return pipe 11 from the lower control valve 17 and the air in the return pipe 11 flows out from the upper control valve 17. Figure 6 The drainage method of the return pipe 11 is the same as Figure 5 ;

[0059] Wait until the river water purification device is turned counterclockwise to Figure 7 After the position shown, Figure 6 The lower end of the leftmost loop pipe 11 at the top is submerged in water. At this time, water can be injected into the loop pipes 11 of the same height to accelerate the counterclockwise turning of the river water purification device. Figure 6 When the two control valves 17 on the same height of the return pipes 11 in the middle left column are at the same height, the water injection process of the return pipes 11 in this column is temporarily stopped. Figure 6 The left return pipe 11 at the uppermost end continues to inject water normally. Figure 6 The return pipe 11 of the drainage also drains normally, thereby driving the river water purification device to continue to turn counterclockwise. Figure 6 After the two control valves 17 on the same height of the water-filled loop pipes 11 in the left middle row are no longer at the same height, the water filling process of this row of loop pipes 11 is resumed, but the function of the control valve 17 originally used for water intake is changed to exhaust, and the function of the control valve 17 originally used for exhaust is changed to water intake;

[0060] After the river water purification device is turned 180 degrees counterclockwise and is leveled again, the center of gravity adjustment of the river water purification device is completed.

[0061] In this embodiment, further, Figure 5-Figure 7 As shown, the suction pipe 116 is a hose, and a float 117 is provided at the distal end of the suction pipe 116. The float 117 allows the distal end of the suction pipe 116 to always remain extended out of the water surface 2. This design can prevent the suction pipe 116 from sinking into the water due to the overturning of the river water purification device, which affects the air pump 112 from absorbing external air.

[0062] Furthermore, if Figure 5-Figure 7 As shown, the floating object 117 is provided with an antenna 118 and a camera 119. The antenna 118 is used to receive external wireless control signals and transmit them to the control unit 111, so as to facilitate timely control of the flipping of the river water purification device. Underwater communication is difficult, so the antenna 118 is provided on the floating object 117 to effectively solve the problem of remote wireless control of the river water purification device; the camera 119 shoots the growth of the aquatic plants 16 above and below the circular frame 14, and wirelessly transmits the video information to the staff through the antenna 118, so that the staff can grasp the growth of the aquatic plants 16 and the amount of floating garbage in the intercepted river in real time, so that the staff can harvest the aquatic plants 16 above the circular frame 14 in time and salvage the floating garbage in the river intercepted by the river water purification device.

[0063] The aquatic plants 16 of this embodiment are planted on the river water purification device. There are no aquatic plants 16 in the height range from the riverbed to the river water purification device, which does not affect the flow of water below the river water purification device and has little impact on the flood discharge capacity of the river. However, if the aquatic plants 16 are planted on the riverbed, after the aquatic plants 16 extend out of the water surface 2, a large number of aquatic plants 16 will block the flow of water in the height range from the water surface 2 to the riverbed, seriously affecting the flood discharge capacity of the river.

[0064] Furthermore, in this embodiment, after the river water purification device is placed in water, when all the circular tubes 11 are not filled with water, the gabion cage 15 above the circular frame 14 is located above the water surface 2, and the gabion cage 15 below the circular frame 14 is located below the water surface 2. With this design, the aquatic plants 16 below the circular frame 14 can be harvested during the flood season of the river, thereby reducing the resistance of the river water purification device to the water flow, further reducing its impact on the flood discharge capacity of the river, and at the same time, the river water purification device can still intercept garbage floating in the river.

[0065] Preferably, Figures 1-4 As shown, the upper and lower surfaces of the return tube 11 are provided with a plurality of screw holes 19. With this design, the connecting plate 5 can be used to fix the adjacent return tubes 11 into one body, thereby realizing that a plurality of purification modules 1 on the same horizontal plane are fixedly connected into one body, as shown in FIG. Figure 4As shown, four through holes 6 are provided on the connecting plate 5, and four screws are used to fix the connecting plate 5 and four purification modules 1 centered on the connecting plate 5 into one body. This design makes the connection, fixation and disassembly of the purification modules 1 simple, convenient and fast.

[0066] In addition, the present invention also proposes a river water purification method, which uses any of the above-mentioned river water purification devices to perform the following steps:

[0067] S1. Place the river water purification device horizontally on the water surface 2;

[0068] S2, control the air pump 112, control valve 1 17 and control valve 2 115 to first completely submerge the river water purification device into the water, allowing the water to fully wet the solid blocks in the gabion cage 15, providing sufficient conditions for the growth of nitrifying bacteria and the germination of seeds. After the solid blocks and seeds are fully absorbed by water, the river water purification device is floated until the upper surface of the return tube 11 above the return frame 14 just extends out of the water surface 2. This design ensures that the seeds of the aquatic plants 16 above the return frame 14 have sufficient water supply ( The design of the upper surface of the circular tube 11 above the circular frame 14 just extending out of the water surface 2 allows water to flow into the installation space 13 when the water surface 2 fluctuates under the influence of natural wind, thereby providing sufficient moisture for the germination and growth of the seeds of the aquatic plants 16. In addition, there is sufficient oxygen and sunlight, which provides sufficient guarantee for the rapid germination and growth of the seeds of the aquatic plants 16. Of course, the seeds of the aquatic plants 16 located below the circular frame 14 can also germinate, but the germination speed is slower than that of the seeds of the aquatic plants 16 above the circular frame 14.

[0069] S3, after the seeds of the aquatic plants 16 above the circular frame 14 germinate, the air pump 112, the control valve 17 and the control valve 2 115 are controlled to flip the river water purification device 180 degrees around the horizontal axis, so that the gabion cage 15 originally located below the circular frame 14 is flipped to above the circular frame 14, and then the aquatic plants 16 below the circular frame 14 continue to grow, and the seeds of the aquatic plants 16 above the circular frame 14 begin to germinate and continue to grow;

[0070] S4, after the aquatic plants 16 above the circular frame 14 grow to a certain length, they are harvested. After the aquatic plants 16 above the circular frame 14 grow tall, they can intercept floating garbage in the river. The aquatic plants 16 are planted on the river water purification device, which does not affect the water flow below the river water purification device and has little impact on the flood discharge capacity of the river. At the same time, the aquatic plants 16 can grow healthily and quickly under the protection of the river water purification device. When it is found that the aquatic plants 16 above the circular frame 14 grow to a certain length, When the amount of floating garbage intercepted is relatively large, the aquatic plants 16 above the circular frame 14 can be harvested and the intercepted floating garbage can be salvaged. The aquatic plants 16 can be used as feed after harvesting. After the harvest, the gabion cage 15 above the circular frame 14 only has the roots and a small section of the stem of the aquatic plants 16. At this time, it has lost its ability to intercept floating garbage. Therefore, the river water purification device needs to be turned 180 degrees to use the unharvested aquatic plants 16 below the circular frame 14 to continue to intercept floating garbage in the river.

[0071] S5: Control the air pump 112, control valve 1 17, and control valve 2 115 to cause the river water purification device to flip 180 degrees around the horizontal axis, so that the gabion cage 15 originally located below the circular frame 14 flips to the top of the circular frame 14, thereby using the unharvested aquatic plants 16 below the circular frame 14 to continue to intercept floating garbage in the river;

[0072] S6. When the roots of the aquatic plants 16 below the circular frame 14 grow new aquatic plants 16 and the aquatic plants 16 grow to a certain length (the aquatic plants 16 at this length have the ability to intercept floating garbage in the river), and when the aquatic plants 16 above the circular frame 14 intercept a lot of floating garbage, the aquatic plants 16 above the circular frame 14 are harvested, and then S5 and S6 are repeated.

[0073] The river water purification device of this embodiment is provided with two layers of aquatic plants 16, upper and lower. Compared with only providing one layer of aquatic plants 16, this design not only doubles the river water purification capacity, but also can harvest more aquatic plants 16, thereby obtaining more economic benefits, while also not affecting the interception of floating garbage in the river.

[0074] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A method for purifying river water, characterized in that: A river water purification device is used to perform the following steps: S1. Place the river water purification device horizontally on the water surface; S2, control the air pump, control valve 1 and control valve 2 to completely submerge the river water purification device into the water, and then float the river water purification device after a period of time until the upper surface of the return tube above the return frame just protrudes from the water surface; S3, after the seeds of the aquatic plants in the gabion cage above the return frame germinate, the air pump, control valve 1 and control valve 2 are controlled to rotate the river water purification device 180 degrees around the horizontal axis, so that the gabion cage originally located below the return frame is rotated to the top of the return frame; S4, harvesting the aquatic plants above the return frame after they grow to a certain length; S5, control the air pump, control valve 1 and control valve 2 to make the river water purification device turn 180 degrees around the horizontal axis, so that the gabion cage originally located below the circular frame turns to the top of the circular frame; S6, after the aquatic plants below the circular frame grow to a certain length, harvest the aquatic plants above the circular frame, and then repeat S5; The river water purification device comprises a plurality of purification modules which are located on the same horizontal plane and are fixedly connected as one body, and the purification modules comprise: Two mutually parallel and spaced-apart circular tubes are provided, one of which is fixedly mounted with a mounting plate on one side of the circular tube close to the other. The circular tubes are surrounded by a mounting space on one side of the mounting plate. A gabion cage is provided in the mounting space. The gabion cage is filled with solid blocks, and aquatic plant seeds are embedded in the solid blocks. The open ends of the circular frame are respectively sealed and fixedly connected to the upper and lower mounting plates, thereby isolating the inner space of the circular frame from the outside world; The battery and control unit are arranged in the inner space of the circular frame; Each return pipe is provided with an air inlet and at least two control valves, and the multiple control valves are respectively provided at two axial ends of the return pipe and are not located on the same side of the two axial ends of the return pipe; An air pump, wherein the air outlet end is connected to the air outlet pipe, the air inlet end is connected to the air intake pipe, the air intake pipe is connected to the outside atmosphere, the air outlet pipe is connected to multiple branch pipes, each branch pipe is provided with a control valve 2, and each branch pipe is connected to the air inlet holes of a plurality of return pipes of the same height; The plurality of purification modules are distributed in a rectangular array and have at least two rows, and each branch pipe is connected to the air inlet holes of a row of return pipes of the same height; The distal end of the air intake pipe is provided with a float, which allows the distal end of the air intake pipe to always remain above the water surface. The floating object is provided with an antenna and a camera; The purification modules of the river water purification device are provided with rotating shafts at both ends of the turning axis of the river water purification device. The rotating shafts are coaxial with the turning axis of the river water purification device. The rotating shafts are rotatably mounted on the shaft frame and can slide up and down along the shaft frame. The control air pump, the control valve 1 and the control valve 2 cooperate with each other to change the center of gravity of the river water purification device so that the river water purification device is turned 180 degrees around the horizontal axis; The center of gravity of the river water purification device is changed by inflating air into a plurality of return pipes of equal height, and opening a control valve to allow water to enter the other plurality of return pipes of equal height.

2. A river water purification method according to claim 1, characterized in that: When harvesting aquatic plants, first clean up the floating garbage intercepted by the aquatic plants.

3. A river water purification method according to claim 1, characterized in that: When all the return pipes are not filled with water, the gabion cage above the return frame is above the water surface, and the gabion cage below the return frame is below the water surface.

Images