An algal cleaning device

Abstract

The present disclosure provides an algal cleaning device, comprising a first connecting part and a second connecting part, the first connecting part is arranged on one side of the second connecting part along a first direction, the first connecting part is suspended above the water surface, the second connecting part is sunk below the water surface, and a gap is reserved between the first connecting part and the second connecting part for the algal-containing water to enter; a chamber is arranged in the second connecting part; a filter is arranged in the chamber; a flow guide is arranged on one side of the filter along the first direction, and a channel is arranged at the bottom of the second connecting part and communicates with the chamber. By forming a continuous water flow circulation through the flow guide, the algal-containing water on the water surface is automatically sucked in, the algal water is separated through the filter, and the automatic delivery, collection and storage of algae are completed through the collection part, without manual scooping, unloading intervention throughout the process; compared with the traditional manual fishing, the algal removal efficiency is greatly improved, the spread of algae is effectively curbed, and the treatment effect is obvious.

Description

Technical Field

[0001] This disclosure relates to the field of algae removal, and more particularly to an algae removal device. Background Technology

[0002] In recent years, the trend of global warming has continued to intensify, with the average surface temperature rising year by year. The water temperature of static or slow-flowing water bodies such as freshwater lakes, reservoirs, and ponds has risen synchronously, and the water's own flow has significantly decreased, creating an ideal temperature environment for the reproduction and growth of phytoplankton. At the same time, factors such as fertilizer runoff from agricultural production, livestock and poultry farming wastewater discharge, and substandard urban sewage discharge have led to persistently excessive levels of plant nutrients such as nitrogen and phosphorus in freshwater bodies. This relatively abundant supply of nutrients in the water directly induces an explosive growth of phytoplankton, resulting in eutrophication, commonly known in the industry as "algal bloom" disaster.

[0003] Traditional physical algae removal methods are primarily manual, involving operators using small boats and simple tools such as hand nets, trawl nets, and dip nets to manually scoop and drag algae from the water's surface. While this method can clean algae in small areas, it suffers from significant technical drawbacks. These include high labor and material costs, requiring a large number of specialized personnel, boats, and auxiliary equipment; extremely strenuous manual labor; poor safety, and inability to operate in adverse weather conditions such as rain or strong winds, making it difficult to achieve continuous, round-the-clock algae removal. Summary of the Invention

[0004] This disclosure provides an algae removal device to at least solve the above-mentioned technical problems existing in the prior art.

[0005] According to a first aspect of this disclosure, an algae removal device is provided, including a first connecting part and a second connecting part. The first connecting part is disposed on one side of the second connecting part along a first direction. The first connecting part is suspended above the water surface, and the second connecting part is submerged below the water surface. A gap is reserved between the first connecting part and the second connecting part for algae-containing water to enter. A chamber, wherein the chamber is formed within the second connecting portion, and the gap between the first connecting portion and the second connecting portion communicates with the chamber; A filter element disposed within a chamber, the filter element being used to filter algae from the water body; A flow guide is provided on one side of the filter element along a first direction. The bottom of the second connecting part has a channel communicating with the chamber. The flow guide is used to guide the water in the chamber from the first connecting part to the second connecting part and out of the chamber through the channel.

[0006] Furthermore, the filter element is a cover plate with filter holes. The cover plate is funnel-shaped, with the side of the cover plate with the larger opening close to the gap between the first connecting part and the second connecting part. The side of the cover plate close to the gap is fixedly connected to the inner wall of the cavity and divides the cavity into a first chamber and a second chamber along the first direction. The side of the cover plate with the smaller opening is a closed opening.

[0007] Furthermore, it also includes a collection element disposed on one side of the filter element, the collection element being used to collect and store the algae filtered by the filter element.

[0008] Furthermore, the collection component includes, The pipe is located in the first room, and the pipe is fixed with a gap between the pipe and the cover plate; A cavity is formed within the first connecting portion, and the pipe is fixedly installed on the first connecting portion and communicates with the cavity; The auger is rotatably installed inside the pipe, and the auger extends out of the pipe from the side near the cover plate. The auger is used to transport algae at the bottom of the pipe into the cavity through the pipe. A first driving member is disposed on a first connecting part, and the first driving member drives the auger to rotate.

[0009] Furthermore, a rotating shaft is fixedly installed on the side of the first auger away from the cover plate and inside the cavity. The first driving component drives the rotating shaft to rotate, and a push plate is fixedly installed on the circumferential side of the rotating shaft.

[0010] Furthermore, a stirring rod is fixedly installed on the side of the auger near the cover plate, and the stirring rod is located on the inclined surface of the cover plate.

[0011] Furthermore, the second connecting part is provided with several airbags around its periphery, and the first connecting part is provided with a liquid level sensor, a controller and an air pump. The liquid level sensor is connected to the controller, and the controller controls the air pump to inflate and deflate the airbags, adaptively adjusting the buoyancy of the device so that the gap is always kept at the water surface.

[0012] Furthermore, a removable sealing cap is provided at the top of the first connecting part.

[0013] Compared with existing technologies, the algae removal device disclosed herein has the following beneficial effects: it forms a continuous water flow circulation through the diversion component, automatically draws in algae-containing water from the water surface, separates algae from water through the filter component, and then automatically completes the algae transportation, collection and storage through the collection component, without the need for manual scooping or unloading intervention throughout the process; compared with traditional manual scooping, the algae removal efficiency is greatly improved, which can quickly respond to the reproduction trend during the algae outbreak period, effectively curb the spread of algae, and achieve immediate treatment results.

[0014] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0015] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of this disclosure are illustrated in the drawings by way of example and not limitation, in which: In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0016] Figure 1 A first schematic diagram of the overall structure of this disclosure is shown; Figure 2 A second schematic diagram of the overall structure of this disclosure is shown; Figure 3 A cross-sectional view of the overall structure of this disclosure is shown; Figure 4 A schematic diagram of the collection of items disclosed herein is shown; Figure 5 A schematic diagram showing the positional relationship between the second connection part and the pipeline of this disclosure is shown; Figure 6 A schematic diagram of the collection components and cover structure of this disclosure is shown.

[0017] Explanation of the labels in the diagram: 100. First connecting part; 200. Second connecting part; 300. Chamber; 310. First chamber; 320. Second chamber; 400. Filter element; 410. Cover plate; 420. Filter holes; 430. Sealing plate; 500. Drainage components; 600, Channel; 700. Collector; 710. Pipe; 720. Cavity; 730. Screwdriver; 740. First drive component; 750. Shaft; 760. Push plate; 770. Stirring rod; 800. Airbag; 810. Liquid level sensor; 820. Air pump; 900. Sealing cap. Detailed Implementation

[0018] To make the objectives, features, and advantages of this disclosure more apparent and understandable, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0019] In recent years, the trend of global warming has continued to intensify, with the average surface temperature rising year by year. The water temperature of static or slow-flowing water bodies such as freshwater lakes, reservoirs, and ponds has risen synchronously, and the water's own flow has significantly decreased, creating an ideal temperature environment for the reproduction and growth of phytoplankton. At the same time, factors such as fertilizer runoff from agricultural production, livestock and poultry farming wastewater discharge, and substandard urban sewage discharge have led to persistently excessive levels of plant nutrients such as nitrogen and phosphorus in freshwater bodies. This relatively abundant supply of nutrients in the water directly induces an explosive growth of phytoplankton, resulting in eutrophication, commonly known in the industry as "algal bloom" disaster. Given the severe harm caused by eutrophication, timely and efficient removal of phytoplankton from water bodies has become a core element in restoring aquatic ecosystems, ensuring water quality safety, and maintaining drinking water health. Currently, domestic and international technologies for phytoplankton removal are mainly divided into three categories: chemical algae removal, biological algae suppression, and physical removal. While chemical algae removal is fast-acting, it requires the use of chemical agents such as copper sulfate and algaecides, which can easily lead to agent residues, secondary pollution, and damage to the original microbial community of the water body. Biological algae suppression technology inhibits algae reproduction by introducing aquatic plants, probiotics, and filter-feeding fish, offering eco-friendly advantages. However, it suffers from drawbacks such as long treatment cycles, slow results, and poor controllability, making it unsuitable for emergency removal needs during algae blooms and only suitable for initial prevention and subsequent ecological restoration. In summary, physical removal methods, due to their lack of secondary pollution, rapid effectiveness, and high controllability, have become the mainstream technology for dealing with algae blooms and routine algae removal at present. Traditional physical algae removal methods are primarily manual, involving operators using small boats and simple tools such as hand nets, trawl nets, and dip nets to manually scoop and drag algae from the water's surface. While this method can clean algae in small areas, it suffers from significant technical drawbacks. These include high labor and material costs, requiring a large number of specialized personnel, boats, and auxiliary equipment; extremely strenuous manual labor; poor safety, and inability to operate in adverse weather conditions such as rain or strong winds, making it difficult to achieve continuous, round-the-clock algae removal. Please see Figure 1 , Figure 2 and Figure 3To address the aforementioned technical problems, this application discloses an algae cleaning device, which mainly includes a first connecting part 100, a second connecting part 200, a chamber 300, a filter element 400, a flow guide element 500, a collection element 700, a buoyancy adjustment component, and an auxiliary drive component. The components cooperate with each other and work together to complete the entire process of automated algae cleaning.

[0020] The first connecting part 100 is disposed on one side of the second connecting part 200 along the first direction. In this invention, the first direction is preferably the vertical upward direction, that is, the first connecting part 100 is located directly above the second connecting part 200. The two are arranged in a vertical layer to form a suspension structure with a clear distinction between primary and secondary elements. The first connecting part 100 is suspended above the water surface, serving as the upper supporting body of the device and also functioning as an algae storage unit. The second connecting part 200 is submerged below the water surface, serving as the lower main body of the device and undertaking the core functions of filtration, diversion, and algae-water separation. A gap is reserved between the first connecting part 100 and the second connecting part 200. This gap is an open channel 600, which is interconnected with the chamber 300 inside the second connecting part 200. It is mainly used to allow algae-containing water on the water surface to smoothly enter the chamber 300 with natural water flow or diversion suction, providing a pre-channel 600 for subsequent algae-water separation. The height and width of the gap can be flexibly adjusted according to the water conditions and algae concentration to ensure smooth flow of algae-containing water while preventing large debris from entering the chamber 300 and causing blockage.

[0021] Please see Figure 3 and Figure 5 The chamber 300 is a closed cavity structure 720, which is integrally opened inside the second connecting part 200. As the core working space for algae-water separation, the shape of the chamber 300 is adapted to the shape of the second connecting part 200, preferably a cylindrical chamber 300, to ensure smooth water flow without dead corners. The gap between the first connecting part 100 and the second connecting part 200 is directly connected to the top of the chamber 300, ensuring that the algae-containing water can fall directly into the chamber 300 for filtration and separation after entering through the gap. The bottom of the second connecting part 200 has a channel 600 that communicates with the chamber 300. This channel 600 serves as the discharge channel 600 for the filtered clean water, allowing the separated water to flow smoothly back to the natural water area, forming a complete water flow cycle of "water inlet-separation-drainage" to ensure continuous operation of the device.

[0022] The filter element 400 is fixedly installed inside the chamber 300, located in the central region of the chamber 300. As the core component for algae-water separation, its main function is to intercept and separate planktonic algae from algae-containing water, allowing the water to pass through the filter element 400 and be discharged, while the algae are retained, thus achieving efficient algae-water separation. In this invention, the filter element 400 is preferably a cover plate 410. The cover plate 410 has an overall trumpet-shaped structure, with the side of the cover plate 410 with a larger opening close to the gap between the first connecting part 100 and the second connecting part 200. This ensures that the algae-containing water entering through the gap can fully cover the surface of the cover plate 410, improving filtration efficiency. The outer edge of the cover plate 410 near the gap is sealed and fixedly connected to the inner wall of the chamber 300, dividing the chamber 300 into two independent chambers, a first chamber 310 and a second chamber 320, along the first direction. The first chamber 310 is located above the cover plate 410 and serves as a space for algae collection and temporary storage, while the second chamber 320 is located below the cover plate 410 and serves as a space for water flow diversion and discharge. A sealing plate 430 is provided on the side with the smaller opening. The sealing plate 430 seals the bottom of the cover plate 410 and provides a support platform for algae, facilitating the upward transport of algae. The overall tilt angle of the cover plate 410 is 45°. The cover plate 410 has a number of filter holes 420 evenly distributed on its body. The diameter of the filter holes 420 is smaller than the particle size of the target phytoplankton, which can ensure smooth water flow and completely intercept phytoplankton. The shape and diameter of the filter holes 420 can be flexibly adjusted according to the type of algae to meet the separation needs of various common phytoplankton such as blue algae, green algae, and diatoms.

[0023] Please see Figure 3 The diversion component 500 is disposed on one side of the filter element 400 along the first direction, specifically located in the second chamber 320 below the filter element 400. Its core function is to provide power for water circulation, directing the water in the chamber 300 from the first connecting part 100 to the second connecting part 200, and finally discharging it out of the chamber 300 through the channel 600 at the bottom of the second connecting part 200. This creates a continuous negative pressure suction inside the chamber 300, driving algae-containing water on the surface to continuously enter the chamber 300 through the gaps, thus achieving automated water intake. The diversion component 500 preferably adopts a rotating fan blade structure, which is equipped with a waterproof DC drive motor to provide rotational power. When the rotating fan blade rotates, it generates a downward water flow thrust, accelerating the downward flow of water in the chamber 300 and forming a stable water circulation.

[0024] Please see Figure 3 and Figure 4To achieve centralized collection, transportation, and storage of filtered algae, this invention also includes a collection component 700. The collection component 700 is located on one side of the filter element 400, specifically within the first chamber 310 above the filter element 400. Its main function is to collect, transport, and centrally store the algae intercepted and retained by the filter element 400, preventing algae from accumulating and clogging within the chamber 300, while also facilitating subsequent unloading. The collection component 700 specifically includes a pipe 710, a cavity 720, an auger 730, a first driving component 740, and an auxiliary pushing component. These components work together to complete the transportation and storage of algae.

[0025] The pipe 710 is a vertically arranged cylindrical structure located in the central area of ​​the first chamber 310, that is, in the middle of the smaller opening of the cover plate 410. A gap is reserved between the bottom of the pipe 710 and the inner wall of the cover plate 410, which allows algae trapped on the cover plate 410 to slide down the inclined inner wall to the bottom of the pipe 710, realizing automatic algae collection. The cavity 720 is opened inside the first connecting part 100 and is a closed storage chamber. The top end of the pipe 710 is fixedly installed on the first connecting part 100, and the interior of the pipe 710 is interconnected with the interior of the cavity 720 to form an algae transport channel 600. The auger 730 is rotatable. The auger 730 is placed inside the pipe 710, and its length is adapted to the length of the pipe 710. The side of the auger 730 near the cover plate 410 extends out of the bottom of the pipe 710 and into the collection gap at the bottom of the cover plate 410, ensuring that the auger 730 can contact the collected algae. The first drive unit 740 is fixedly installed on the first connecting part 100. The output shaft of the first drive unit 740 is fixedly connected to the top of the auger 730, driving the auger 730 to rotate continuously. When the auger 730 rotates, it generates an upward conveying force, which conveys the algae collected at the bottom of the pipe 710 upward along the inner wall of the pipe 710, and finally discharges it into the cavity 720 for centralized storage.

[0026] A stirring rod 770 is fixedly installed on the side of the auger 730 near the cover plate 410, with part of the stirring rod 770 located on the inclined surface of the cover plate 410. The stirring rod 770 is used to comb the algae at the bottom of the pipe 710 to prevent algae from clogging the bottom of the pipe 710.

[0027] Please see Figure 4 , Figure 5 and Figure 6Furthermore, to prevent algae from accumulating and clumping inside the cavity 720 and occupying storage space, and to maximize the storage capacity of the cavity 720, a rotating shaft 750 is fixedly installed at the top of the auger 730 on the side away from the cover plate 410 and inside the cavity 720. The rotating shaft 750 rotates synchronously with the auger 730 on the same axis. Several push plates 760 are fixedly installed on the circumference of the rotating shaft 750. The push plates 760 rotate synchronously with the rotating shaft 750 to push the algae entering the cavity 720 flat, prevent local accumulation of algae, and improve the effective storage rate of the cavity 720. The first driving component 740 drives the auger 730 and the rotating shaft 750 to rotate synchronously, without the need for an additional power source, simplifying the device structure and reducing energy consumption.

[0028] Considering that the device's mass gradually increases after long-term algae collection, which may lead to sinking, gap displacement, and water inlet failure, this invention is equipped with an adaptive buoyancy adjustment component, specifically including an airbag 800, a liquid level sensor 810, a controller, and an air pump 820; several airbags 800 are provided, evenly arranged in a ring on the peripheral outer wall of the second connection part 200; the airbags 800 are made of flexible, waterproof, and highly elastic material, which has good pressure resistance and wear resistance. Please see Figure 1 and Figure 2 A liquid level sensor 810, a controller, and an air pump 820 are fixedly installed on the first connecting part 100. The detection end of the liquid level sensor 810 is close to the bottom surface of the first connecting part 100 to detect the relative height of the first connecting part 100 to the water surface in real time. The liquid level sensor 810 is connected to the input end of the controller via a signal line, and the output end of the controller is connected to the air pump 820 via a circuit. The air pump 820 is connected to the inside of the air bag 800 via an air guide tube. When the device sinks due to the increased weight of algae and the liquid level sensor 810 contacts the water surface, it immediately sends an electrical signal to the controller. After receiving the signal, the controller starts the air pump 820 to inflate the airbag 800. The airbag 800 expands, increasing the overall buoyancy of the device and raising the height of the first connecting part 100. When the liquid level sensor 810 leaves the water surface, the controller stops the air pump 820 to achieve adaptive buoyancy adjustment, ensuring that the gap between the first connecting part 100 and the second connecting part 200 is always at the water surface, accurately collecting phytoplankton. If the buoyancy of the device is too high, the controller can control the airbag 800 to vent air in one direction, fine-tuning the height of the device and ensuring operational stability.

[0029] To facilitate unloading operations after the algae storage in the cavity 720 is full, a discharge port is provided at the top of the first connecting part 100. A detachable sealing cover 900 is provided at the discharge port. The sealing cover 900 is sealed to the first connecting part 100 by means of buckles, bolts or magnetic attraction. This ensures the airtightness of the device during operation and prevents water from entering the cavity 720. It can also be quickly disassembled during unloading to discharge the algae in batches from the cavity 720, which facilitates the centralized transfer and resource treatment of algae.

[0030] In addition, to enable autonomous movement and comprehensive algae removal, the device can be equipped with a mobile drive component (not shown in the figure), including an underwater propulsion unit, a rudder, and a remote control module. The remote control module is wirelessly connected to a remote control terminal, allowing operators to remotely control the device to move, turn, and cruise in large water areas without human intervention, further enhancing the device's automation level and applicability.

[0031] The working principle is as follows: The device is placed on the surface of eutrophic water, and the power is turned on to start the diversion component 500 and the collection component 700. The rotating fan blades of the diversion component 500 rotate at high speed, and the water in the chamber 300 is discharged downward, forming a negative pressure suction. The algae-containing water on the surface enters the chamber 300 through the gap and falls onto the surface of the cover plate 410. The water flows into the second chamber 320 through the filter holes 420, and flows back to the natural water area through the channel 600. The algae are intercepted by the filter holes 420 and slide down the inclined inner wall of the cover plate 410 to the bottom of the pipe 710. The first driving component 740 drives the auger 730 to rotate. The device rotates, conveying algae upwards along pipe 710 and discharging it into cavity 720. Rotating shaft 750 drives pusher plate 760 to rotate, leveling the algae and preventing accumulation. As the algae storage increases, the device becomes heavier and sinks. After level sensor 810 contacts the water surface, controller activates air pump 820 to inflate airbag 800, increasing buoyancy and lifting the device until level sensor 810 leaves the water surface, maintaining the gap at the water's surface. When cavity 720 is full of algae, power is turned off, removable sealing cover 900 is removed, the algae are cleaned out, and the device can be resealed to continue operation.

[0032] In addition, this device can also be equipped with a fluorescence spectroscopy recognition system, which balances detection accuracy and real-time operation.

[0033] Utilizing the specific fluorescence of cyanobacterial chlorophyll a at 680nm, and excited by 470nm blue light, non-algal interference is eliminated through a dual-wavelength ratio of 680 / 720nm, accurately measuring algal concentration and distinguishing algal species. Referring to the technical specifications of AquaPen AP110 or Tianhe TH-S16S, it has the advantages of strong anti-interference, fast response, and suitability for early warning of outbreaks.

[0034] Using spectral detection as the concentration threshold trigger condition, the vision system is activated when the concentration exceeds the standard to complete target localization and obstacle avoidance, achieving the synergy of accurate detection and real-time operation.

[0035] The sensing layer is for cyanobacteria recognition: a fluorescence sensor (range 0–1,000,000 cells / mL, accuracy ±2%). Floating object / obstacle avoidance: High-definition camera + ultrasonic array (close-range blind spot filling) + lidar (precise ranging); Environmental monitoring: Water temperature, flow rate, and turbidity sensors ensure operational safety and efficiency.

[0036] Energy and Control Energy: High-efficiency solar panels + energy storage batteries, providing ≥7 days of continuous use even on cloudy or rainy days; Control: Edge computing box, deploying lightweight models, inference speed ≥30FPS; Navigation: GNSS+IMU fusion positioning, combined with DWA dynamic obstacle avoidance algorithm.

[0037] The closed-loop workflow is as follows: Cruise: Operates 24 / 7 according to preset or autonomously planned routes; Identification: The target is immediately locked in if the concentration exceeds the threshold by spectral monitoring or if algae / debris is detected by vision; Operation: Approach the target → Open the inlet → Filter and separate → Concentrate and store, while simultaneously avoiding obstacles; Recharge / Dump: When the battery is low or the collection bin is full, it will automatically return to the charging station, recharge, and unload.

[0038] It should be understood that the various forms of processes shown above can be used to rearrange, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this disclosure can be achieved, and this is not limited herein.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. An algae removal device, characterized in that, It includes a first connecting part (100) and a second connecting part (200). The first connecting part (100) is disposed on one side of the second connecting part (200) along a first direction. The first connecting part (100) is suspended above the water surface, and the second connecting part (200) is submerged below the water surface. A gap is reserved between the first connecting part (100) and the second connecting part (200) for algae-containing water to enter. A chamber (300) is formed within a second connecting part (200), and the gap between the first connecting part (100) and the second connecting part (200) communicates with the chamber (300); A filter element (400) is disposed within a chamber (300) to filter algae from the water. A diversion component (500) is disposed on one side of the filter component (400) along a first direction. The bottom of the second connecting part (200) is provided with a channel (600) communicating with the chamber (300). The diversion component (500) diverts water in the chamber (300) from the first connecting part (100) to the second connecting part (200) and flows out of the chamber (300) through the channel (600).

2. The algae removal device according to claim 1, characterized in that, The filter element (400) is a cover plate (410), and the cover plate (410) has filter holes (420). The cover plate (410) is trumpet-shaped. The side of the cover plate (410) with a larger opening is close to the gap between the first connecting part (100) and the second connecting part (200). The side of the cover plate (410) close to the gap is fixedly connected to the inner wall of the chamber (300) and divides the chamber (300) into a first chamber (310) and a second chamber (320) along the first direction. The side of the cover plate (410) with a smaller opening is provided with a sealing plate (430) to block the side of the cover plate (410) with a smaller opening.

3. The algae removal device according to claim 2, characterized in that, The algae cleaning device also includes a collection element (700) disposed on one side of the filter element (400) for collecting and storing the algae filtered by the filter element (400).

4. The algae removal device according to claim 3, characterized in that, The collection component (700) includes, Pipe (710), the pipe (710) is located in the first chamber (310), and there is a gap between the pipe (710) and the cover plate (410); A cavity (720) is formed inside the first connecting part (100), and a pipe (710) is fixedly installed on the first connecting part (100) and communicates with the cavity (720); Screwdriver (730), which is rotatably installed inside pipe (710), extends from the side of the screwdriver (730) near the cover plate (410) out of pipe (710), and the screwdriver (730) transports algae in the gap between pipe (710) and cover plate (410) to cavity (720) through pipe (710); A first driving member (740) is disposed on a first connecting part (100) to drive the auger (730) to rotate.

5. The algae removal device according to claim 4, characterized in that, The auger (730) is located on the side away from the cover plate (410) and is fixedly installed in the cavity (720) with a rotating shaft (750). The first driving member (740) drives the rotating shaft (750) to rotate. A push plate (760) is fixedly installed on the circumferential side of the rotating shaft (750).

6. The algae removal device according to claim 4, characterized in that, The auger (730) is fixedly installed with a stirring rod (770) on the side near the cover plate (410), and part of the stirring rod (770) is located on the inclined surface of the cover plate (410).

7. The algae removal device according to claim 1, characterized in that, The second connecting part (200) is provided with several airbags (800) around its periphery. The first connecting part (100) is provided with a liquid level sensor (810), a controller and an air pump (820). The liquid level sensor (810) is connected to the controller. The controller controls the air pump (820) to inflate and deflate the airbags (800) and adaptively adjusts the buoyancy of the device so that the gap is always kept at the water surface.

8. The algae removal device according to claim 1, characterized in that, The first connecting part (100) is provided with a removable sealing cap (900) on the top.

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