Water curtain type net hydrophobic aeration membrane water body purification device

Abstract

The application discloses a water curtain type netted hydrophobic aeration membrane water body purification device, and relates to the technical field of wastewater treatment. The water flow purification mechanism comprises a fixed plate which is a square plate structure, and the number of the fixed plates is two; the two fixed plates are fixedly connected with a rotating shaft; the hydrophobic membrane filter core is wrapped by the hinged plate and the connecting frame, sunlight can be isolated, the cultivation of nitrifying bacteria is realized, and when water flows, the water naturally flows out through the gap between the second water passing groove and the first water passing groove, the circulation of the water flow is ensured, the water flow can uniformly pass through the hydrophobic membrane filter core, oxygen is introduced, sunlight is isolated in a semi-closed mode, the problem that a large amount of ultraviolet rays in sunlight kill the nitrifying bacteria in the hydrophobic membrane filter core and cause the nitrifying bacteria to have a low water quality purification efficiency is prevented.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a water curtain-type mesh hydrophobic aeration membrane water purification device. Background Technology

[0002] Water purification generally refers to the self-purification of water bodies. Within its environmental capacity, a water body can naturally reduce the concentration and toxicity of discharged pollutants over time as it flows downstream through physical, chemical, and biological processes. This is called the self-purification function of water bodies.

[0003] A water curtain-type mesh hydrophobic aeration membrane water purification device, as described in patent application CN208700706U, includes fixed piles and several sets of water curtain membrane modules. The fixed piles have gas channels connected to an external air supply device via air inlet pipes. Each water curtain membrane module includes an air inlet end and a hollow fiber curtain. The air inlet end is fixed to the fixed piles and connected to the gas channels. The hollow fiber curtain is formed by regularly weaving several vacuum fiber membranes with braided threads. One end of the vacuum fiber membrane is sealed to the air inlet end, while the other end is closed. Several aeration holes are evenly distributed along the length of the vacuum fiber membrane. The outer surface of the vacuum fiber membrane is covered with a hydrophobic membrane with a hydrophobic contact angle of 90-150°.

[0004] Currently, in the purification of stream water, artificial nitrifying bacteria culture devices are often used to provide a culture environment for nitrifying bacteria (such as filter cartridges). However, if these devices are placed at the bottom of the water, they are difficult to maintain, while if they are placed on the surface of the water, they are often exposed to sunlight. The ultraviolet rays in sunlight will kill a large number of nitrifying bacteria, resulting in a decrease in the efficiency of nitrifying bacteria in purifying water and affecting the water purification effect. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a water curtain-type mesh hydrophobic aeration membrane water purification device, thereby achieving the goal of solving the aforementioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a water curtain type mesh hydrophobic aeration membrane water purification device, comprising a water flow purification mechanism, wherein the water flow purification mechanism includes:

[0007] The fixing plate is a square plate structure. There are two fixing plates. A rotating shaft is fixedly connected between the two fixing plates. A rotating sleeve is rotatably connected to the outer wall of the rotating shaft. An internal threaded sleeve is fixedly connected to one side of the fixing plate. The inner wall of the internal threaded sleeve is threadedly connected to the outer wall of the rotating sleeve. The fixing plate is used to support the rotating shaft and the rotating sleeve.

[0008] The hinge plate is a rectangular frame structure. A hydrophobic membrane filter element is fixedly connected to the inner wall of the hinge plate, and a connecting frame is fixedly connected to one side of the hinge plate. The hinge plate is used to agitate the water flow.

[0009] Preferably, a first water channel is provided on one side of the connecting frame. The first water channel is a downward-sloping channel and is rectangular in shape.

[0010] Preferably, a second water channel is provided on both sides of the connecting frame. The second water channel is a rectangular channel. The first water channel is connected to the inside of the connecting frame. The second water channel is connected to the inside of the connecting frame. The hydrophobic membrane filter element is connected to the inside of the connecting frame.

[0011] Preferably, a connecting air pipe is fixedly connected to the outer wall of the rotating sleeve, one end of the connecting air pipe is fixedly connected to one side of the hinge plate, the inside of the rotating sleeve is connected to the inside of the connecting air pipe, and the inside of the connecting air pipe is connected to the inside of the hinge plate.

[0012] Preferably, a one-way vent valve is fixedly connected to the top of the internal threaded sleeve, the interior of the one-way vent valve is in communication with the interior of the internal threaded sleeve, and the interior of the internal threaded sleeve is in communication with the interior of the rotating sleeve.

[0013] Preferably, a one-way jet nozzle is fixedly connected to the bottom of the inner wall of the hinge plate. The one-way jet nozzle does not contact one side of the hydrophobic membrane filter element, and the interior of the one-way jet nozzle is connected to the interior of the hinge plate.

[0014] Preferably, the hinge plate is provided with dynamic mechanisms on both sides. The dynamic mechanisms include a fixed shaft, one end of which is fixedly connected to one side of the hinge plate, and a rotating ring is rotatably connected to the outer wall of the fixed shaft.

[0015] Preferably, an opening and closing plate is fixedly connected to the outer wall of the rotating ring, the opening and closing plate is an arc-shaped plate structure, a long plate is fixedly connected to the bottom of the rotating ring, and a counterweight is fixedly connected to the outer wall of the long plate.

[0016] Preferably, the outer wall of the opening and closing plate is provided with an arc-shaped sliding groove, the inner wall of the arc-shaped sliding groove is slidably connected with bristles, one side of the bristles is fixedly connected with an elastic rope, and one end of the elastic rope is fixedly connected to the inner wall of the arc-shaped sliding groove.

[0017] Preferably, a long rod is fixedly connected to one side of the brush bristles, and counterweights are fixedly connected to both sides of the opening and closing plate.

[0018] This invention provides a water curtain-type mesh hydrophobic aeration membrane water purification device, belonging to the field of environmental protection technology, and has the following beneficial effects:

[0019] 1. This invention, by setting up a water purification mechanism, encloses the hydrophobic membrane filter element with a hinged plate and a connecting frame, which can block sunlight and cultivate nitrifying bacteria. When the water flows, it naturally flows out through the gap between the second and first water channels, ensuring the smooth flow of water. This allows the water to pass evenly through the hydrophobic membrane filter element, maintaining the intake of oxygen while blocking sunlight in a semi-enclosed manner. This prevents ultraviolet rays in sunlight from killing a large number of nitrifying bacteria in the hydrophobic membrane filter element, thus avoiding the problem of reduced water purification efficiency of nitrifying bacteria.

[0020] 2. This invention, by setting up a water purification mechanism, causes the hinge plate and connecting frame that drive the rotating sleeve to rotate to be pushed by water, swinging back and forth. When the water flow pushes the hydrophobic membrane filter element to swing, the swing of the hydrophobic membrane filter element will disturb the surrounding water flow, forming local water flow eddies and turbulence. This disturbance helps to break the laminar flow state of the water body, promote the mixing and exchange of water. At the same time, the obstruction of the water flow by the hinge plate and connecting frame will cause the water in the stream to surge upward, drive the flow of the surrounding water body, and increase the contact area between the water body and the air, thereby increasing the dissolved oxygen content in the water, providing sufficient oxygen for nitrifying bacteria, and thus improving the efficiency of water purification.

[0021] 3. This invention, by setting up a water flow purification mechanism, continuously flushes and renews the water flow environment on the surface of the hydrophobic membrane filter element structure, providing more opportunities for nitrifying bacteria to attach. It also helps to remove aging biofilm, promotes the growth of new bacteria, and the oscillating water flow helps to evenly distribute nutrients (such as ammonia nitrogen, nitrite, etc.) on the surface of the mesh structure, providing sufficient nutrient source for nitrifying bacteria. At the same time, it also further promotes the removal of waste produced by the metabolism of nitrifying bacteria, maintaining the cleanliness of their growth environment.

[0022] 4. By setting up a water purification mechanism, the rotating sleeve moves left and right on the outer wall of the rotating shaft. The thread helix angle between the rotating sleeve and the rotating shaft is large, so the distance of left and right movement during rotation is long. This allows the hinge plate and connecting frame to move left and right when swinging, so that the hydrophobic membrane filter element in the hinge plate and connecting frame can uniformly increase the interception area of ​​the water flow in the stream, improve the uniformity of contact between the hydrophobic membrane filter element and the water flow at various positions, and thus improve the water purification efficiency of the hydrophobic membrane filter element.

[0023] 5. This invention, by setting up a water purification mechanism, draws air from above the water surface into the inner threaded sleeve through a one-way vent valve. When the hinge plate swings, it can repeatedly draw in external air and spray it out through a one-way jet nozzle to the bottom of the hinge plate. The air bubbles rise quickly due to buoyancy and come into contact with the hinge plate, thus continuously supplying oxygen to the hinge plate. This ensures that the nitrifying bacteria inside have a sufficient oxygen supply, and a stable water purification effect can be guaranteed without the need for an external oxygen supply device.

[0024] 6. This invention, through the setting of a dynamic mechanism, increases the water pressure on the filter screen when the water flow is fast. This pushes away some of the impurities clogging the filter screen with the high water pressure during the high water flow, ensuring that the water flows evenly through the filter membrane during the subsequent stable slow water flow. This allows for the stable cultivation of more nitrifying bacteria and avoids clogging. After cleaning, the raised state of the opening and closing plate during the slow water flow provides a stable water flow. This reduces the pressure of the water flow on the hinge plate during the slow water flow, allowing the water to flow evenly and slowly, providing a stable cultivation environment for nitrifying bacteria. This allows the nitrifying bacteria to multiply to the maximum extent and maintain a stable water purification effect over a long period of time.

[0025] 7. By setting up a dynamic mechanism, once the hinge plate becomes blocked, the obstructed water flow will cause the hinge plate and the connecting frame to be pushed and lifted by the water flow. When the hinge plate and the opening and closing plate are tilted together, the opening and closing plate forms a closure, increasing the water pressure on the hinge plate. This can also use the high water pressure to flush away the residue inside the hinge plate, achieving stable purification efficiency and reducing the problem of blockage affecting the reproduction of nitrifying bacteria. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the water purification mechanism of the present invention;

[0028] Figure 3 For the present invention Figure 1 Enlarged view of point A;

[0029] Figure 4 This is a schematic diagram of the water purification mechanism of the present invention. Figure 1 ;

[0030] Figure 5 This is a schematic diagram of the water purification mechanism of the present invention. Figure 2 ;

[0031] Figure 6 This is a schematic diagram of the disassembled structure of the water purification mechanism of the present invention;

[0032] Figure 7 This is a cross-sectional structural schematic diagram of the water purification mechanism of the present invention;

[0033] Figure 8 This is a schematic diagram of the structural movement of the water purification mechanism of the present invention. Figure 1 ;

[0034] Figure 9 This is a schematic diagram of the structural movement of the water purification mechanism of the present invention. Figure 2 ;

[0035] Figure 10 This is a schematic diagram of the dynamic mechanism of the present invention. Figure 1 ;

[0036] Figure 11 For the present invention Figure 10 Enlarged view of point B;

[0037] Figure 12 This is a schematic diagram of the dynamic mechanism of the present invention. Figure 2 ;

[0038] Figure 13 This is a schematic diagram of the structural motion of the dynamic mechanism of the present invention. Figure 1 ;

[0039] Figure 14 This is a schematic diagram of the structural motion of the dynamic mechanism of the present invention. Figure 2 .

[0040] In the diagram: 3. Water purification mechanism; 301. Fixed plate; 302. Internal threaded sleeve; 303. Rotating sleeve; 304. Hinge plate; 305. Connecting frame; 306. First water channel; 307. Second water channel; 308. Hydrophobic membrane filter element; 309. One-way vent valve; 310. Connecting air pipe; 311. One-way air nozzle; 4. Dynamic mechanism; 401. Rotating ring; 402. Fixed shaft; 403. Opening and closing plate; 404. Long plate; 405. Counterweight; 406. Arc-shaped slide; 407. Brush bristles; 408. Long rod; 409. Elastic rope. Detailed Implementation

[0041] Example 1: Please refer to Figure 1-4 The present invention provides a technical solution: a water curtain type mesh hydrophobic aeration membrane water purification device, including a water flow purification mechanism 3, the water flow purification mechanism 3 including:

[0042] The fixing plate 301 is a square plate structure. There are two fixing plates 301. A rotating shaft is fixedly connected between the two fixing plates 301. A rotating sleeve 303 is rotatably connected to the outer wall of the rotating shaft. An internal threaded sleeve 302 is fixedly connected to one side of the fixing plate 301. The inner wall of the internal threaded sleeve 302 is threadedly connected to the outer wall of the rotating sleeve 303. The fixing plate 301 is used to support the rotating shaft and the rotating sleeve 303.

[0043] The hinge plate 304 is a rectangular frame structure. A hydrophobic membrane filter element 308 is fixedly connected to the inner wall of the hinge plate 304. A connecting frame 305 is fixedly connected to one side of the hinge plate 304. The hinge plate 304 is used to agitate the water flow.

[0044] In use, the two fixing plates 301 are fixed to the riverbank of the stream, and then a rotating shaft is fixed between the two fixing plates 301. The outer wall of the rotating shaft is fitted with a rotating sleeve 303. When the stream passes through the hinge plate 304 and the connecting frame 305 below the rotating sleeve 303, it will come into contact with the hydrophobic membrane filter element 308 in the inner wall of the hinge plate 304, thereby transporting nutrients and oxygen in the water to the hydrophobic membrane filter element 308. The numerous mesh structures in the hydrophobic membrane filter element 308 form a culture dish for nitrifying bacteria, allowing the nitrifying bacteria to attach to the mesh structure of the hydrophobic membrane filter element 308. As the water flows through, it absorbs excess nutrients in the water in this area, and uses nitrifying bacteria to complete the biochemical filtration efficiency, ensuring clear water quality and reducing impurities in the water.

[0045] Example 2: Please refer to Figure 1-9 Based on Embodiment 1, the present invention provides a technical solution: In scenarios such as natural water purification, aquaculture wastewater treatment and small-scale artificial wetlands, using nitrifying bacteria to purify water quality is a common and effective method. However, existing devices have many problems, which seriously affect the activity of nitrifying bacteria and the water purification effect.

[0046] Regarding sunlight, ultraviolet rays in sunlight have a strong killing effect on nitrifying bacteria. In natural environments or open water treatment systems, nitrifying bacteria are directly exposed to sunlight, and ultraviolet rays kill a large number of nitrifying bacteria, resulting in a significant decrease in their purification efficiency.

[0047] Regarding water flow conditions, uneven water distribution, with some areas experiencing excessively fast flow and others flowing too slowly or even forming stagnant zones, prevents nitrifying bacteria from fully contacting pollutants, thus reducing conversion efficiency. Simultaneously, in some slow-flowing or closed systems, the water's contact area with air is small, resulting in low dissolved oxygen levels that cannot meet the growth requirements of nitrifying bacteria, thus affecting water purification effectiveness.

[0048] The distribution of nutrients is also uneven. Nutrients such as ammonia nitrogen and nitrite in the water are not evenly distributed in space, which makes it impossible for nitrifying bacteria to obtain nutrients evenly. In some areas, nitrifying bacteria grow too fast, while in other areas they grow slowly and cannot fully exert their purification effect.

[0049] Regarding oxygen supply, in order to ensure that nitrifying bacteria have a sufficient oxygen supply, a dedicated oxygen supply device, such as an oxygenation pump, is usually required. However, these devices increase the complexity and cost of the system, and in some remote areas or small water treatment systems, a stable power supply may not be available, causing the oxygen supply device to malfunction and affecting the growth of nitrifying bacteria and the water purification effect. Therefore, a first water passage trough 306 is provided on one side of the connecting frame 305. The first water passage trough 306 is a downward-sloping trough and is rectangular in shape.

[0050] The connecting frame 305 has a second water channel 307 on both sides. The second water channel 307 is a rectangular channel. The first water channel 306 is connected to the inside of the connecting frame 305. The second water channel 307 is connected to the inside of the connecting frame 305. The hydrophobic membrane filter element 308 is connected to the inside of the connecting frame 305.

[0051] A connecting air pipe 310 is fixedly connected to the outer wall of the rotating sleeve 303. One end of the connecting air pipe 310 is fixedly connected to one side of the hinge plate 304. The interior of the rotating sleeve 303 is connected to the interior of the connecting air pipe 310, and the interior of the connecting air pipe 310 is connected to the interior of the hinge plate 304.

[0052] A one-way vent valve 309 is fixedly connected to the top of the internal threaded sleeve 302. The interior of the one-way vent valve 309 is connected to the interior of the internal threaded sleeve 302, and the interior of the internal threaded sleeve 302 is connected to the interior of the rotating sleeve 303.

[0053] A one-way jet nozzle 311 is fixedly connected to the bottom of the inner wall of the hinge plate 304. The one-way jet nozzle 311 does not contact one side of the hydrophobic membrane filter element 308, and the interior of the one-way jet nozzle 311 is connected to the interior of the hinge plate 304.

[0054] The hydrophobic membrane filter element 308 is enclosed by the hinge plate 304 and the connecting frame 305, which can block sunlight and realize the cultivation of nitrifying bacteria. When the water flows, it naturally flows out through the gap between the second water channel 307 and the first water channel 306, ensuring the smooth flow of water. This allows the water to flow evenly through the hydrophobic membrane filter element 308, maintaining the intake of oxygen while blocking sunlight in a semi-enclosed manner. This prevents ultraviolet rays in sunlight from killing a large number of nitrifying bacteria in the hydrophobic membrane filter element 308, thus avoiding the problem of reduced water purification efficiency of nitrifying bacteria.

[0055] When water flows through the hinge plate 304 and connecting frame 305, the water flow speed is different and the direction of flow is different from the undercurrent. This causes the hinge plate 304 and connecting frame 305, which can drive the rotating sleeve 303 to rotate, to be pushed by the water and swing back and forth. When the water flow pushes the hydrophobic membrane filter element 308 to swing, the swing of the hydrophobic membrane filter element 308 will disturb the surrounding water flow, forming local water flow eddies and turbulence. This disturbance helps to break the laminar flow state of the water body and promote the mixing and exchange of water. At the same time, the obstruction of the water flow by the hinge plate 304 and connecting frame 305 will cause the water in the stream to surge upward, drive the flow of the surrounding water body, and increase the contact area between the water body and the air, thereby increasing the dissolved oxygen content in the water, providing sufficient oxygen for nitrifying bacteria, and thus improving the efficiency of water purification.

[0056] The water flow continuously washes and renews the water environment on the surface of the hydrophobic membrane filter element 308, providing more opportunities for nitrifying bacteria to attach. It also helps to remove aging biofilm, promotes the growth of new bacteria, and the water flow helps to evenly distribute nutrients such as ammonia nitrogen and nitrite on the surface of the mesh structure, providing sufficient nutrients for nitrifying bacteria. At the same time, it also further promotes the removal of waste products generated by nitrifying bacteria metabolism, maintaining the cleanliness of their growth environment.

[0057] When the hinge plate 304 and the connecting frame 305 swing back and forth, they drive the rotating sleeve 303 to rotate back and forth. When the rotating sleeve 303 rotates, it rotates through the thread between the inner wall and the outer wall of the rotating shaft, and causes the rotating sleeve 303 to move left and right on the outer wall of the rotating shaft. Since the thread helix angle between the rotating sleeve 303 and the rotating shaft is large, the distance of left and right movement during rotation is relatively long. This allows the hinge plate 304 and the connecting frame 305 to move left and right when swinging, so that the hydrophobic membrane filter element 308 in the hinge plate 304 and the connecting frame 305 can uniformly increase the interception area of ​​the water flow in the stream, improve the uniformity of contact between the hydrophobic membrane filter element 308 and the water flow at various positions, and thus improve the water purification efficiency of the hydrophobic membrane filter element 308.

[0058] Simultaneously, as the connecting frame 305 and the hinge plate 304 swing back and forth, the air inside the internal threaded sleeves 302 on both sides is continuously pushed. The air is pushed into the hinge plate 304 through the connecting air pipe 310, and then through the interior of the hinge plate 304 to the one-way air jet nozzle 311, from which it is ejected. When the rotating sleeve 303 moves away from the internal threaded sleeve 302, the air exposed above the water surface is drawn into the internal threaded sleeve 302 through the one-way air valve 309 above. This allows the external air to be drawn in and ejected through the one-way air jet nozzle 311 to the bottom of the hinge plate 304 as the hinge plate 304 swings. The air rises rapidly due to the buoyancy of the air bubbles and comes into contact with the hinge plate 304, thus continuously supplying oxygen to the hinge plate 304. This ensures that the nitrifying bacteria inside have sufficient oxygen supply, and a stable water purification effect can be guaranteed without the need for an external oxygen supply device.

[0059] Example 3: Please refer to Figure 1-14 Based on Embodiments 1 and 2, this invention provides a technical solution: the water flow velocity in natural water bodies or sewage treatment systems is not constant and is affected by various factors, such as seasonal changes, rainfall, and pump start-up and shutdown. Most existing nitrifying bacteria cultivation devices cannot automatically adjust the water flow according to changes in water flow velocity. When the water flow velocity is slow, the water may not pass evenly through the filter screen, resulting in poor water flow in some areas and affecting the sufficient contact between nitrifying bacteria and the water. Conversely, when the water flow velocity is fast, the impact force on the filter screen is too great, easily causing filter clogging and interfering with the growth environment of nitrifying bacteria, thus reducing the water purification effect.

[0060] As treatment time progresses, impurities and suspended solids in the water gradually accumulate on the filter screen surface, causing it to become clogged. Clogged filters not only reduce the surface area for water flow and increase flow resistance, but also affect the normal growth and metabolism of nitrifying bacteria. If the filter becomes severely clogged, water flow will be impossible, and the entire water purification system will malfunction, potentially requiring shutdown for manual cleaning. This not only increases maintenance costs but also impacts the sustained purification effect.

[0061] Existing nitrifying bacteria cultivation devices cannot provide a stable and suitable growth environment for nitrifying bacteria under conditions such as changes in water flow rate and filter clogging. Unstable water flow rate and changes in water pressure will affect the attachment and growth of nitrifying bacteria, resulting in a decrease in the number and activity of nitrifying bacteria, thereby affecting their ability to purify water. Therefore, dynamic mechanisms 4 are provided on both sides of the hinge plate 304. The dynamic mechanism 4 includes a fixed shaft 402, one end of which is fixedly connected to one side of the hinge plate 304, and a rotating ring 401 is rotatably connected to the outer wall of the fixed shaft 402.

[0062] A hinge plate 403 is fixedly connected to the outer wall of the swivel ring 401. The hinge plate 403 is an arc-shaped plate structure. A long plate 404 is fixedly connected to the bottom of the swivel ring 401. A counterweight block 405 is fixedly connected to the outer wall of the long plate 404.

[0063] The outer wall of the hinge plate 403 is provided with an arc-shaped sliding groove 406. The inner wall of the arc-shaped sliding groove 406 is slidably connected with bristles 407. An elastic rope 409 is fixedly connected to one side of the bristles 407. One end of the elastic rope 409 is fixedly connected to the inner wall of the arc-shaped sliding groove 406.

[0064] A long rod 408 is fixedly connected to one side of the bristle 407, and counterweights 405 are fixedly connected to both sides of the opening and closing plate 403.

[0065] The counterweight of the long plate 404 below the rotating ring 401 and the counterweight block 405 causes the opening and closing plate 403 to be raised, so that the opening and closing plate 403 can be stably tilted. Therefore, when the water flow is slow in the static state, and the hinge plate 304 and the connecting frame 305 cannot be pushed up by the water flow, the opening and closing plate 403 can maintain the tilted state, allowing the water flow to pass evenly without obstructing the water flow. When the water flow is fast, the hinge plate 304 and the connecting frame 305 will be pushed up by the water flow.

[0066] When the hinge plate 304 is raised, it tilts. At this time, the rotating ring 401, the counterweight 405, and the opening and closing plate 403 maintain their original tilt angle through the counterweight 405. The end of each opening and closing plate 403 rests on the next rotating ring 401, forming a seal between each connecting frame 305, reducing water flow. At this time, the water pressure on the hydrophobic membrane filter element 308 will naturally increase. Thus, when the water flow is fast, the water pressure on the filter screen increases, and some of the impurities clogging the filter screen are forced out by the large water flow. In this case, high water pressure is used to push away the residue to ensure that the water flow is stable and slow in the subsequent time. This allows the water to pass through the filter membrane evenly, which can stably cultivate more nitrifying bacteria and avoid clogging. After cleaning, when the water flow is slow, the lifting state of the opening and closing plate 403 will allow the water to pass through stably. This reduces the pressure of the water flow on the hinge plate 304, allowing the water to pass through evenly and slowly, providing a stable cultivation environment for nitrifying bacteria. This allows the nitrifying bacteria to multiply to the maximum extent and maintain a stable water purification effect for a long time.

[0067] When the hinge plate 304 becomes clogged, the obstructed water flow will cause the hinge plate 304 and the connecting frame 305 to be pushed up by the water flow. When the hinge plate 304 and the opening and closing plate 403 are tilted together, the opening and closing plate 403 forms a closure, increasing the water pressure on the hinge plate 304. This high water pressure can also flush away the residue inside the hinge plate 304, achieving stable purification efficiency and reducing the impact of clogging on the reproduction of nitrifying bacteria.

[0068] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A water curtain type net-like hydrophobic aerated membrane water body purification device, comprising a water flow purification mechanism (3), characterized in that: The water flow purification mechanism (3) comprises: A fixed plate (301) in square plate structure, two fixed plates (301) are fixedly connected with a rotating shaft, the outer wall of the rotating shaft is rotatably connected with a rotating sleeve (303), one side of the fixed plate (301) is fixedly connected with an internally threaded sleeve (302), the inner wall of the internally threaded sleeve (302) is threadedly connected with the outer wall of the rotating sleeve (303), and the fixed plate (301) is used for supporting the rotating shaft and the rotating sleeve (303); A hinged plate (304) in rectangular frame structure, the inner wall of the hinged plate (304) is fixedly connected with a hydrophobic membrane filter core (308), one side of the hinged plate (304) is fixedly connected with a connecting frame (305), and the hinged plate (304) is used for stirring water flow; One side of the connecting frame (305) is provided with a first water passing groove (306), the first water passing groove (306) is a downward inclined groove, and the first water passing groove (306) is a rectangular groove; The first water passing groove (306) is in communication with the inside of the connecting frame (305), and the hydrophobic membrane filter core (308) is in communication with the inside of the connecting frame (305); The outer wall of the rotating sleeve (303) is fixedly connected with a communication air pipe (310), one end of the communication air pipe (310) is fixedly connected with one side of the hinged plate (304), the inside of the rotating sleeve (303) is in communication with the inside of the communication air pipe (310), and the inside of the communication air pipe (310) is in communication with the inside of the hinged plate (304); The top of the internally threaded sleeve (302) is fixedly connected with a one-way air valve (309), the inside of the one-way air valve (309) is in communication with the inside of the internally threaded sleeve (302), and the inside of the internally threaded sleeve (302) is in communication with the inside of the rotating sleeve (303); The bottom of the inner wall of the hinged plate (304) is fixedly connected with a one-way air jet (311), the one-way air jet (311) is not in contact with one side of the hydrophobic membrane filter core (308), and the inside of the one-way air jet (311) is in communication with the inside of the hinged plate (304); When water flows through the hinged plate (304) and the connecting frame (305), the flow speed of water is not the same, and the flow direction is different from the dark current, so that the hinged plate (304) and the connecting frame (305) capable of driving the rotating sleeve (303) to rotate are pushed by water to swing back and forth; When the hinged plate (304) and the connecting frame (305) swing back and forth, the rotating sleeve (303) is driven to rotate back and forth, and when the rotating sleeve (303) rotates, the threads between the inner wall and the outer wall of the rotating shaft are rotated, and the rotating sleeve (303) moves left and right on the outer wall of the rotating shaft; At the same time, the air in the inner threaded sleeve (302) is continuously pushed back and forth when the connecting frame (305) and the hinged plate (304) swing, the air is pushed into the hinged plate (304) through the communication air pipe (310), and is communicated to the one-way air outlet (311) through the inside of the hinged plate (304), and is sprayed out from the one-way air outlet (311).

2. The water curtain hydrophobic aerated membrane water body purification device according to claim 1, characterized in that: The second water channel (307) is communicated with the inside of the connecting frame (305).

3. The water curtain hydrophobic aerated membrane water body purification device according to claim 2, characterized in that: The hinged plate (304) is provided with a dynamic mechanism (4) on both sides, the dynamic mechanism (4) comprises a fixed shaft (402), one end of the fixed shaft (402) is fixedly connected with one side of the hinged plate (304), and a rotating ring (401) is rotatably connected to the outer wall of the fixed shaft (402).

4. The water curtain hydrophobic aerated membrane water body purification device according to claim 3, characterized in that: The rotating ring (401) is fixedly connected with an opening and closing plate (403), the opening and closing plate (403) is an arc-shaped plate structure, the bottom of the rotating ring (401) is fixedly connected with a long plate (404), and the outer wall of the long plate (404) is fixedly connected with a counterweight (405).

5. The water curtain hydrophobic aerated membrane water body purification device according to claim 4, characterized in that: The outer wall of the opening and closing plate (403) is provided with an arc-shaped sliding groove (406), the inner wall of the arc-shaped sliding groove (406) is slidably connected with a brush (407), one side of the brush (407) is fixedly connected with an elastic rope (409), and one end of the elastic rope (409) is fixedly connected with the inner wall of the arc-shaped sliding groove (406).

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