Combined large flow gill filter

Abstract

The utility model discloses a combined big flow gill filter, including carrier and setting filter assembly on carrier, and filter assembly includes filter membrane group and drainage component, filter membrane group includes the first filter membrane and second filter membrane of fixed on the carrier, and the first filter membrane is connected with the second filter membrane one end, and the other end opening forms water inlet area, and the first filter membrane is water area outside with the second filter membrane, drainage component is fixed on the carrier, water inlet area is equipped with solid discharge port, the utility model discloses when working, blue algae are intercepted between filter membrane, and filtrate penetrates to filter membrane outside, simultaneously, and the algae pulp promotes pump and draws the interception concentrated algae pulp, simultaneously, and the drainage oar wheel discharges the filtrate of water area, speeds up the water flow and passes through the filter membrane speed, and its continuous extraction ensures the filtration continuity, avoids the filtrate and stays, in addition, the water inlet area solid discharge port discharges and collects the interception blue algae, effectively prevents the blue algae accumulation and causes the filter membrane blockage, guarantees the long -term stable operation of filtration system.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically a combined high-flow gill filter. Background Technology

[0002] Suspended solids pollution in lakes and rivers is a critical issue that society urgently needs to address. Among these issues, blue-green algae floating on the water surface can pollute the water resources on which people depend for survival. To solve this problem, it is essential to remove floating blue-green algae from the water in a timely manner.

[0003] Previously, cyanobacteria were usually separated by manual harvesting. However, this method is labor-intensive and time-consuming, and has low efficiency. Now, a gill filter is provided to separate, filter and collect cyanobacteria, which effectively improves the efficiency of cyanobacteria separation and collection. Utility Model Content

[0004] The purpose of this invention is to provide a combined high-flow gill filter to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A combined high-flow-rate gill filter includes a carrier and a filter assembly mounted on the carrier. The filter assembly includes a filter membrane group and a drainage component. The filter membrane group includes a first filter membrane and a second filter membrane fixed on the carrier. The first filter membrane and the second filter membrane are connected at one end and open at the other end to form an inlet area. The outer sides of the first filter membrane and the second filter membrane form an outlet area. The drainage component is fixed on the carrier. The inlet area has a solid discharge port. The first filter membrane and the second filter membrane separate cyanobacteria from water entering the inlet area. The solid discharge port discharges and collects the cyanobacteria separated by the filter membranes, effectively preventing cyanobacteria accumulation and clogging of the filter membranes. The optimal installation position of the algae slurry booster pump is near the outlet of the outlet area. This position can determine the fixed position of one end of the filter membrane group and control its filtration space to be as large as possible. The continuous pumping of the algae slurry booster pump can promote the discharge of concentrated algae slurry from the filter membrane group from the carrier, avoid algae slurry accumulation and clogging of the filter membranes, and improve filtration efficiency.

[0006] Preferably, a motor is mounted on the carrier, and support seats are mounted on both sides of the carrier. A rotating shaft is positioned between the two support seats, and the motor drives the rotating shaft to rotate. The drainage assembly includes a drainage impeller and an algae slurry lift pump. The drainage impeller is mounted on the rotating shaft and is located in the effluent area. The algae inlet pipe of the algae slurry lift pump is located in the inlet area. The drainage impeller is mounted on the rotating shaft and is located in the effluent area. The drainage impeller rotates simultaneously with the coupling driven by the motor. The rotation of the drainage impeller accelerates the water flow in the inlet area, and simultaneously, with the extraction by the algae slurry lift pump in the effluent area, the water discharge rate in the effluent area also increases. The optimal installation position of the drainage impeller is at the outlet of the effluent area. At this position, the drainage impeller can effectively accelerate the water flow in the inlet area and the discharge of accumulated filtrate in the effluent area, and also reserve sufficient space for the installation of the filter membrane module.

[0007] Preferably, couplings are provided on both sides of the carrier, and a filter cake propeller is placed between the two couplings. The filter cake propeller is located at the water inlet of the water inlet zone. The filter cake propeller rotates through the couplings, serving as a pre-interception mechanism. The optimal installation position of the filter cake propeller, installed through the couplings, is at the water inlet. Since the water inlet is the first barrier for water entering the carrier, the filter cake propeller directly contacts the water surface here, intercepting large-volume debris in the water at the source, while not occupying space for subsequent installation of the filter membrane module.

[0008] Preferably, a motor is mounted on the carrier, and support seats are located on both sides of the carrier. A rotating shaft is positioned between the two support seats, and the motor drives the rotating shaft to rotate. The drainage assembly includes a drainage impeller and an algae slurry lift pump. The drainage impeller is mounted on the rotating shaft and is located in the effluent area. The algae slurry lift pump's inlet pipe is located in the effluent area. Couplings are located on both sides of the carrier, and a filter cake propeller is positioned between the two couplings. The filter cake propeller is located at the inlet of the effluent area. The couplings are used to install the filter cake propeller, which rotates through the couplings. The optimal installation position for the filter cake propeller is at the inlet. This position does not occupy the space of the filtration chamber formed by the filter membrane assembly and simultaneously intercepts water at the source, reducing the risk of filter membrane clogging. At the same time, the motor drives the rotating shaft to rotate, which in turn drives the drainage impeller to rotate. The drainage impeller is installed at the effluent outlet of the effluent area. This position can accelerate the flow of water in the effluent area and the discharge of water in the effluent area, while reserving sufficient space for the installation of the filter membrane assembly, effectively improving filtration efficiency.

[0009] Preferably, a U-shaped fixing frame is provided on the carrier; the drainage assembly includes an algae slurry lift pump, which is fixed in the U-shaped groove of the U-shaped fixing frame, and the first filter membrane and the second filter membrane are fixed on both sides of the U-shaped structure. The U-shaped fixing frame has an enclosing structure, providing a stable installation space for the algae slurry lift pump and preventing it from shifting during operation. At the same time, the first and second filter membranes are connected to both sides of the U-shaped fixing frame, so that the filter membrane assembly and the algae slurry lift pump are connected through the same fixing frame. This ensures the installation stability of the filter membrane assembly and keeps their relative positions accurate, avoiding the impact of loose components on the negative pressure formation efficiency and water flow filtration path, and ultimately ensuring the structural stability of the entire filtration assembly during operation.

[0010] Preferably, the filter membrane group consists of two or more groups, with the filter membranes of adjacent filter membrane groups interconnected; the drainage component includes an algae slurry lift pump, the algae inlet pipe of which is located in the water inlet area. The arrangement of multiple filter membrane groups effectively expands the filtration area of ​​the cyanobacteria-rich water.

[0011] Preferably, the carrier is provided with a concave fixing frame; the first filter membrane, the third filter membrane, and the second filter membrane are respectively installed on three sides of the concave fixing frame, forming a three-sided closed water inlet area; the algae slurry lift pump inlet pipe is located in the water inlet area. The concave fixing frame fixes the three filter membranes to form a filter membrane group, expanding the effective filtration area. At the same time, the algae slurry lift pump draws algae slurry from the filter membrane group and discharges it from the carrier, avoiding accumulation that could cause the membrane group to clog.

[0012] Preferably, the carrier has a buoyancy cavity located at its center of gravity, and a propeller is installed on the carrier. The carrier's buoyancy height is adjusted by filling or defilling the buoyancy cavity, controlling the amount of water inside. The buoyancy cavity's location at the center of gravity effectively ensures the carrier's balance. When the carrier is navigating in shallow waters, reducing the weight of the buoyancy cavity increases the carrier's buoyancy height, reducing the risk of grounding. When the water surface is large and greater stability is needed, water is added to the cavity to increase the carrier's weight and lower its center of gravity, preventing excessive swaying and ensuring the carrier remains in a safe state.

[0013] Preferably, the water inlet of the water inlet area is hinged to a water inlet gate. The water inlet gate is hinged to the water inlet in two modes: hinged opening and closing or hinged lifting and lowering. The water inlet gate includes a crossbar, a support rod, a connecting rod, and a door panel. The two ends of the crossbar are fixed to the two sides of the water inlet of the carrier, and the middle of the crossbar is fixedly connected to the support rod. The fixed end of the support rod is hinged to one end of the connecting rod, and the other end of the connecting rod is fixedly connected to the door panel.

[0014] The inlet gate is located at the outlet of the outlet area and does not occupy the installation space of the filter membrane module. It can be opened outward, and water containing blue-green algae enters the inlet area through the inlet gate and then flows into the filter membrane module to complete the subsequent filtration process. When not in operation, the gate is closed by the linkage to prevent impurities from entering the inlet area in the non-filtration state, and at the same time, it can also protect the internal structure of the filter membrane module.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model is simple to operate and is used for high-efficiency filtration and collection of floating blue-green algae in water. The filter membrane group in this device has a clear contraction and collection area to provide squeezing pressure in addition to water flow pressure, so that the water containing blue-green algae can form effective contact with the surface of the filter membrane. 2. Two or more filter membrane modules are set up to effectively increase the filtration area. At the same time, the rotating drain impeller in the water outlet area promotes water flow and improves the filtration efficiency of the filter. 3. In addition, a filter cake propeller is installed in the water inlet area, which can remove large suspended solids in the water in advance, reduce the risk of clogging of the filter membrane, and ensure the efficient and normal operation of the filter. 4. The filter carrier is designed with a buoyancy cavity, which allows the carrier to adjust the amount of water in the buoyancy cavity according to the navigation environment to control the floating depth, so as to ensure the safety and stability of the filtration process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a gill filter with multiple sets of filter membranes in Embodiment 2 of this utility model; Figure 2 This is a schematic diagram of the structure of the concave fixing frame fixing the filter membrane assembly in Embodiment 3 of this utility model; Figure 3 This is a schematic diagram of the structure of the filter membrane assembly installed on the carrier in Embodiment 3 of this utility model; Figure 4 This is a schematic diagram of the water inlet gate of the carrier in Embodiment 1 of this utility model; Figure 5 This is a schematic diagram of the gill filter with a drainage impeller in Embodiment 4 of this utility model; Figure 6 This is a schematic diagram of the gill filter with a filter residue propeller in Embodiment 5 of this utility model; Figure 7 This is a schematic diagram of the gill filter with a drainage impeller and a filter residue propeller in Embodiment 6 of this utility model. Figure 8 A top view of the gill filter of Embodiment 6 of this utility model, which is provided with a drainage impeller and a filter residue propeller; Figure 9This is a schematic diagram of the structure of the U-shaped fixing frame fixing the algae slurry lift pump and the filter membrane assembly in Embodiment 6 of this utility model; Numbered in the diagram: 1. Carrier; 101. Buoyancy cavity; 102. Flow actuator; 103. Inlet gate; 1031. Crossbar; 1032. Support rod; 1033. Connecting rod; 1034. Gate panel; 2. Filter assembly; 3. Filter membrane assembly; 301. First filter membrane; 302. Second filter membrane; 303. Third filter membrane; 4. Inlet area; 5. Filter residue propeller; 6. Coupling; 7. Support base; 8. Drainage assembly; 801. Algae slurry lift pump; 802. Drainage impeller; 9. U-shaped fixing frame; 10. Concave fixing frame; 11. Outlet area; 12. Rotating shaft; 13. Sludge discharge port. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1: This example is a filter with a single set of filter membranes, which includes a carrier 1, a single set of filter membranes 3 and an algae slurry lift pump 801.

[0019] The filter membrane assembly 3 includes a first filter membrane 301 and a second filter membrane 302. The first filter membrane 301 and the second filter membrane 302 are connected at one end and open at the other, forming a filter chamber with one open end as the water inlet zone 4. During filtration, cyanobacteria flow in with the water from the open end of the water inlet zone 4. At this time, the water inlet zone 4 gradually contracts, providing a squeezing force beyond the water flow pressure, thus allowing the water containing cyanobacteria to effectively contact the surface of the filter membrane. Simultaneously, the water inlet zone 4 is provided with a discharge port 13 to discharge the collected cyanobacteria. The outer side of the first filter membrane 301 and the second filter membrane 302 is the water outlet zone 10, used to discharge the filtered water. Figure 9 As shown, the algae slurry lift pump 801 is fixed on the carrier 1 by a U-shaped fixing frame, and the algae inlet pipe of the algae slurry lift pump 801 is located in the water inlet area 4. The first filter membrane 301 and the second filter membrane 302 are fixed on both sides of the U-shaped structure.

[0020] The filter assembly 2, consisting of a single filter membrane group 3 and an algae slurry lift pump 801, is installed on the carrier 1, which supports the filter assembly 2. The carrier 1 can be a ship hull, which can perform filtration and algae removal operations independently in the water. During high-flow algae removal operations, the carrier 1 can also be installed as a carrier structure at the front of the ship hull.

[0021] When the filter is working, the inlet gate opens, and as the carrier moves, water containing cyanobacteria enters from the inlet opening. The water is filtered through the filter membranes on both sides, and the cyanobacteria are trapped between the membranes. The cyanobacteria are discharged and collected through the discharge port, and the filtrate permeates to the outlet area outside the filter membrane. At the same time, the algae slurry lift pump draws the trapped and concentrated algae slurry through the algae inlet pipe, accelerating the speed at which the water flows through the filter membrane. The algae slurry lift pump continuously draws the accumulated algae slurry to ensure the continuity of the filtration process, avoid clogging of the outlet area, and effectively improve the filtration efficiency of the filter. When the filter is not in operation (such as for cleaning, maintenance, or docking), the gate closes.

[0022] Example 2: This example is a filter with two or more sets of filter membranes, including a carrier 1, two or more sets of filter membranes 3 and an algae slurry lift pump 801.

[0023] The difference between Example 2 and Example 1 is as follows: Figure 1 As shown, the filter membrane group 3 is provided with two or more groups, which effectively increases the effective filtration area between the cyanobacteria and the filter membrane, and the filter membranes of adjacent filter membrane groups 3 are interconnected to form a larger filtration space.

[0024] When this filter is working, two or more sets of filter membranes simultaneously filter water containing cyanobacteria, effectively increasing the filtration area of ​​the cyanobacteria-laden water and thus improving its filtration efficiency.

[0025] Example 3: This example is a filter with a concave fixing frame for fixing the filter membrane group, which includes a carrier 1, a single filter membrane group 3, a drainage component 8 and a concave fixing frame 10.

[0026] The difference between Example 3 and Example 1 is as follows: Figures 2-3 As shown, the first filter membrane 301 and the second filter membrane 302 are connected by the third filter membrane 302 to form a single filter membrane group 3. The single filter membrane group 3 is fixed by the concave fixing frame 10 provided on the carrier 1 to form a three-sided closed water inlet area 4. At this time, the drainage component 8 is installed on the water outlet area 11 on the outside of the three-sided filter membrane to discharge the filtrate from the carrier 1.

[0027] When this filter is working, the three-sided filter membrane traps water containing cyanobacteria, effectively increasing the effective filtration area for cyanobacteria. At the same time, it works in conjunction with the algae slurry lift pump to continuously extract and remove the accumulation of algae slurry, thereby improving the filter's filtration efficiency.

[0028] Example 4: This example is a filter equipped with multiple sets of filter membranes and a drainage impeller, which includes a carrier 1, two or more sets of filter membranes 3, a motor, a support base 7, an algae slurry lift pump 801, a drainage impeller 802, and a rotating shaft 12.

[0029] The difference between Example 4 and Example 2 is as follows: Figure 5 As shown, a motor, support base 7, rotating shaft 12, and drainage impeller 802 are added to the carrier 1. The motor is installed on the carrier 1, the support base 7 is installed on both sides of the carrier 1, and the rotating shaft 12 is installed between the two support bases 7. The motor drives the rotating shaft 12 to rotate. The drainage impeller 802 is installed on the rotating shaft 12 to accelerate the water flow speed. The drainage impeller 802 is installed in the water outlet 11, and the optimal installation position is at the water outlet of the water outlet 11, which is used to discharge the filtrate in the water outlet 11. The carrier 1 also includes a buoyancy cavity 101, a propeller 102, and a water inlet gate 103; the buoyancy cavity 101 is located at the center of gravity of the carrier 1 and is used to adjust the floating height of the carrier 1. Among them, such as Figure 4 As shown, the water inlet gate 103 includes a crossbar 1031, a support rod 1032, a connecting rod 1033, and a door panel 1034. The two ends of the crossbar 1031 are respectively fixed to the two sides of the water inlet of the carrier 1, and the middle part of the crossbar 1031 is fixedly connected to the support rod 1032. The fixed end of the support rod 1032 is hinged to one end of the connecting rod 1033, and the other end of the connecting rod 1033 is fixedly connected to the door panel 1034. It can be opened or closed according to the working state of the carrier 1.

[0030] When this filter is working, the rotating drain impeller allows the water in the inlet area to flow better, thus bringing in more blue-green algae and increasing the discharge rate of accumulated filtrate in the outlet area.

[0031] Example 5: This example is a filter equipped with multiple sets of filter membranes and filter residue propellers, which includes a carrier 1, two or more sets of filter membranes 3, an algae slurry lift pump 801, a filter residue propeller 5, and a coupling 6.

[0032] The difference between Example 5 and Example 2 is as follows: Figure 6 As shown, a filter residue propeller 5 and a coupling 6 are added to the carrier 1; the coupling 6 is set on both sides of the carrier 1, and the filter residue propeller 5 is set between the two couplings 6 to dissipate large-volume garbage and suspended solids mixed in the water. The filter residue propeller 5 is set at the inlet of the water inlet zone 4. The carrier 1 also includes a buoyancy cavity 101, a propeller 102, and a water inlet gate 103; the buoyancy cavity 101 is located at the center of gravity of the carrier 1 and is used to adjust the floating height of the carrier 1. Among them, such as Figure 4As shown, the water inlet gate 103 includes a crossbar 1031, a support rod 1032, a connecting rod 1033, and a door panel 1034. The two ends of the crossbar 1031 are respectively fixed to the two sides of the water inlet of the carrier 1, and the middle part of the crossbar 1031 is fixedly connected to the support rod 1032. The fixed end of the support rod 1032 is hinged to one end of the connecting rod 1033, and the other end of the connecting rod 1033 is fixedly connected to the door panel 1034. It can be opened or closed according to the working state of the carrier 1.

[0033] This filter can be fixed on the shore. When in operation, the filter residue propeller can pre-displace large-volume debris (such as dead branches, plastic scraps, etc.) and large particulate suspended matter (such as blocky silt, large algae clumps) mixed in the water. After the water containing blue-green algae flows into the filter membrane for filtration, the algae slurry lift pump discharges the concentrated algae slurry, so that the filtrate in the outlet area can be discharged from the carrier more quickly, effectively avoiding the risk of filter membrane clogging and meeting the needs of large-volume algae removal along the shore.

[0034] Example 6: This example is a filter equipped with multiple sets of filter membranes, a drainage impeller and a filter residue propeller. It includes a carrier 1, two or more sets of filter membranes 3, an algae slurry lift pump 801, a drainage impeller 802, a motor, a support base 7, a rotating shaft 12, a filter residue propeller 5 and a coupling 6.

[0035] The difference between Example 6 and Example 2 is as follows: Figures 7-8 As shown, a motor, support base 7, rotating shaft 12, drainage impeller 802, filter residue propeller 5, and coupling 6 are added to the carrier 1. The motor is installed on the carrier 1, and the support bases 7 are respectively installed on both sides of the carrier 1. The rotating shaft 12 is installed between the two support bases 7. The motor drives the rotating shaft 12 to rotate. The drainage impeller 802 is installed on the rotating shaft 12 to accelerate the discharge rate of filtrate in the effluent zone. The drainage impeller 802 is installed in the effluent zone 11, and the optimal installation position is at the outlet of the effluent zone 11. The coupling 6 is installed on both sides of the carrier 1. The filter residue propeller 5 is installed between the two couplings 6 to drain large volume garbage and suspended solids mixed in the water. The filter residue propeller 5 is installed at the inlet of the influent zone 4. The carrier 1 also includes a buoyancy cavity 101, a propeller 102, and a water inlet gate 103; the buoyancy cavity 101 is located at the center of gravity of the carrier 1 and is used to adjust the floating height of the carrier 1. Among them, such as Figure 4 As shown, the water inlet gate 103 includes a crossbar 1031, a support rod 1032, a connecting rod 1033, and a door panel 1034. The two ends of the crossbar 1031 are respectively fixed to the two sides of the water inlet of the carrier 1, and the middle part of the crossbar 1031 is fixedly connected to the support rod 1032. The fixed end of the support rod 1032 is hinged to one end of the connecting rod 1033, and the other end of the connecting rod 1033 is fixedly connected to the door panel 1034. It can be opened or closed according to the working state of the carrier 1.

[0036] This filter can be fixed on the shore. When in operation, the filter residue propeller rotates to pre-displace or block large-volume debris (such as dead branches, plastic scraps, etc.) and large suspended particles (such as clumps of silt, large algae clumps) mixed in the water. When filtering water containing blue-green algae, the filter impeller rotates in conjunction with the drainage impeller to allow the water in the inlet area to flow better, so that the water flow can bring more blue-green algae. At the same time, the algae slurry lift pump discharges the concentrated algae slurry from the carrier, achieving a more efficient filtration efficiency. It is suitable for high-flow algae removal applications along the shore.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A combined high-flow gill filter, comprising a carrier (1) and a filter assembly (2) disposed on the carrier (1), characterized in that: The filter assembly (2) includes a filter membrane assembly (3) and a drainage assembly (8); The filter membrane assembly (3) includes a first filter membrane (301) and a second filter membrane (302) fixed on the carrier (1). The first filter membrane (301) and the second filter membrane (302) are connected at one end and open at the other end to form a water inlet area (4). The outer side of the first filter membrane (301) and the second filter membrane (302) is a water outlet area (11). The drainage component (8) is fixed on the carrier (1); the water inlet area (4) is provided with a drain outlet (13).

2. The combined high-flow gill filter according to claim 1, characterized in that: A motor is provided on the carrier (1), and support seats (7) are provided on both sides of the carrier (1). A rotating shaft (12) is provided between the two support seats (7), and the motor drives the rotating shaft (12) to rotate. The drainage assembly (8) includes a drainage impeller (802) and an algae slurry lifting pump (801). The drainage impeller (802) is mounted on the rotating shaft (12) and is located in the water outlet area (11). The algae inlet pipe of the algae slurry booster pump (801) is located in the water inlet area (4).

3. A combined high-flow gill filter according to claim 1, characterized in that: The carrier (1) is provided with couplings (6) on both sides respectively, and a filter residue propeller (5) is provided between the two couplings (6). The filter residue propeller (5) is provided at the water inlet of the water inlet zone (4).

4. A combined high-flow gill filter according to claim 1, characterized in that: A motor is provided on the carrier (1), and support seats (7) are provided on both sides of the carrier (1). A rotating shaft (12) is provided between the two support seats (7). The motor drives the rotating shaft (12) to rotate. The drainage component (8) includes a drainage impeller (802) and an algae slurry lifting pump (801). The drainage impeller (802) is provided on the rotating shaft (12). The drainage impeller (802) is located in the water outlet area (11). The algae inlet pipe of the algae slurry lifting pump (801) is located in the water inlet area (4); The carrier (1) is provided with couplings (6) on both sides respectively, and a filter residue propeller (5) is provided between the two couplings (6). The filter residue propeller (5) is provided at the water inlet of the water inlet zone (4).

5. A combined high-flow gill filter according to claim 1, characterized in that: A U-shaped fixing frame (9) is provided on the carrier (1); The drainage component (8) includes an algae slurry lift pump (801), which is fixed in the U-shaped groove of the U-shaped bracket (9), and the first filter membrane (301) and the second filter membrane (302) are fixed on both sides of the U-shaped structure.

6. A combined high-flow gill filter according to claim 1, characterized in that: The filter membrane group (3) is provided with two or more groups, and the filter membranes of adjacent filter membrane groups (3) are connected to each other; The drainage assembly (8) includes an algae slurry lift pump (801), the algae slurry lift pump (801) having an algae inlet pipe located in the water inlet area (4).

7. A combined high-flow gill filter according to claim 1, characterized in that: The carrier (1) is provided with a concave fixing frame (10); the concave fixing frame (10) is provided with a first filter membrane (301), a second filter membrane (302) and a third filter membrane (303) on three sides respectively, forming a three-sided closed water inlet area (4); The drainage assembly (8) includes an algae slurry lift pump (801), the algae slurry lift pump (801) having an algae inlet pipe located in the water inlet area (4).

8. A combined high-flow gill filter according to claim 1, characterized in that: The carrier (1) is provided with a buoyancy cavity (101), which is located at the gravity center of the carrier (1). The carrier (1) is provided with a flow booster (102).

9. A combined high-flow gill filter according to claim 1, characterized in that: The inlet of the water inlet area (4) is hinged with an inlet gate (103). The inlet gate (103) is hinged to the inlet in two modes: hinged opening and closing or hinged lifting and lowering.

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