Cultivation circulating water treatment system

Abstract

The invention relates to the technical field of water treatment, in particular to an aquaculture circulating water treatment system. According to the technical scheme, the device comprises a treatment box, an adjusting box and an adjusting valve plate, the outer wall of the treatment box is sleeved with the adjusting box, a sealing sleeve is arranged at one end of the treatment box, the adjusting valve plate is arranged in the adjusting box, a first assembling groove and a second assembling groove are formed in the adjusting valve plate, and an adjusting groove is formed in the adjusting valve plate; a first filter membrane is arranged in the first assembling groove, a second filter membrane is arranged in the second assembling groove, a motor is arranged in the adjusting box, a nut is arranged at one end of the adjusting valve plate, and a first screw is arranged at the output end of the motor. By arranging the adjusting valve plate, the two filtering assemblies are conveniently adjusted and automatically cleaned, and the problems that water circulation treatment equipment cannot be used due to manual cleaning, and cleaning is tedious and time-consuming are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and particularly relates to a aquaculture circulating water treatment system. Background Art

[0002] In modern aquaculture, the circulating water treatment system plays a crucial role. Through effective water quality management and resource utilization, the circulating water treatment system can improve aquaculture efficiency, optimize the environment, and at the same time reduce the negative impact on the ecological environment.

[0003] During the aquaculture process, water quality is the key factor affecting the healthy growth of aquatic organisms. The circulating water treatment system can effectively remove harmful substances such as ammonia nitrogen, total phosphorus, and suspended solids, and maintain the stability of water quality. The circulating water treatment system reduces water discharge by recycling and reusing water sources, effectively reducing the impact of pollutants generated by aquaculture on the surrounding water bodies, and promoting sustainable development.

[0004] In the process of water circulation treatment, a filter membrane is used to filter the preliminarily filtered water again to ensure the removal of tiny suspended solids. However, the filter membrane needs to be cleaned periodically. In existing aquaculture, manual cleaning still exists, resulting in the inability to use the water circulation treatment equipment, and manual cleaning is cumbersome and time-consuming. Therefore, those skilled in the art have provided an aquaculture circulating water treatment system to solve the problems raised in the above background art. Summary of the Invention

[0005] The purpose of the present invention is to provide an aquaculture circulating water treatment system for the problems existing in the background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An aquaculture circulating water treatment system includes a treatment tank, an adjustment tank, and an adjustment valve plate. The treatment tanks are symmetrically distributed and one end of each treatment tank is open. The outer wall of the treatment tank is sleeved with an adjustment tank. Sealing sleeves are provided at both opposite ends of the treatment tank. An adjustment valve plate slidably installed inside the sealing sleeve is arranged inside the adjustment tank. An assembly groove one and an assembly groove two are formed inside the adjustment valve plate. An adjustment groove penetrating through the assembly groove one and the assembly groove two is formed inside the adjustment valve plate. A filter membrane one is arranged inside the assembly groove one. A filter membrane two is arranged inside the assembly groove two. A motor is arranged inside the adjustment tank. A nut is arranged at one end of the adjustment valve plate. A screw rod one threadedly installed with the nut is arranged at the output end of the motor. A water inlet pipe and a water outlet pipe are respectively communicated and installed at the opposite ends of the treatment tank. A pressure pump is communicated and installed at one end of the treatment tank.

[0007] Preferably, a guide rail is arranged on the inner wall of the front side of the adjustment tank. A slider slidably installed on the outer wall of the guide rail is arranged at the front end of the adjustment valve plate. The adjustment valve plate slides on the outer wall of the guide rail through the slider, and sliding guidance is obtained inside the adjustment tank.

[0008] Preferably, support grilles are provided on the inner walls of the first and second assembly grooves, and the first and second filter membranes are located on the support grilles. The support grilles support the bottoms of the first and second filter membranes, improving the service strength of the first and second filter membranes.

[0009] Preferably, a frame-shaped support ring is provided on the upper inner wall of the first and second assembly grooves, and a pressing frame in the shape of a frame and located on the upper side edges of the first and second filter membranes is provided below the support ring. The support ring is used for the assembly of the pressing frame, and the pressing frame is used for pressing the upper ends of the first and second filter membranes to ensure the stability of the first and second filter membranes during use.

[0010] Preferably, a bearing seat is embedded and installed inside the upper end of the pressing frame, a screw hole is formed in the inner wall of the support ring, a second screw rod is threadedly installed inside the screw hole, and rotating rods are arranged in an annular array on the outer wall of the second screw rod. Grasping the rotating rods facilitates applying a rotational force to the second screw rod.

[0011] Preferably, a support frame is provided on the outer wall of the treatment tank, and a ladder is provided at the front end of the adjustment tank. The support frame supports the treatment tank, and the ladder is used for maintenance personnel to climb onto the adjustment tank to maintain the internal structure of the adjustment tank.

[0012] Preferably, a maintenance opening is formed in the upper end of the adjustment tank, and an upper opening cover rotatably installed at the opening of the maintenance opening is provided at the upper end of the adjustment tank. The interior of the adjustment tank is maintained through the maintenance opening, and the upper opening cover closes the maintenance opening during daily use.

[0013] Preferably, a discharge groove is formed in the lower end of the adjustment tank, and a lower opening cover rotatably installed at the opening of the discharge groove is provided at the upper end of the adjustment tank. The treated sewage is output through the discharge groove, and the lower opening cover closes the unused discharge groove.

[0014] Preferably, a cleaning pump is provided at the lower end of the adjustment tank, a connecting pipe located inside the lower end of the adjustment tank is provided at the output end of the cleaning pump, equidistantly distributed installation pipes are communicated and installed inside the connecting pipe, and nozzles are provided at equal distances at the upper ends of the installation pipes. The plurality of installation pipes divide the conveyed cleaning water and output it through multiple nozzles at multiple points to act on the upper end of the filtering assembly.

[0015] Preferably, the steps of the aquaculture circulating water treatment method are as follows:

[0016] S1: First, the water inlet pump is connected to the initially treated water tank, and the water outlet pump is connected to the aeration tank or the virus disinfection tank. The initially treated aquaculture water is input into the interior of the treatment tank through the water inlet pipe. When passing through the filter membrane, the initially treated water is further filtered through Filter Membrane 1, and the minute suspended solids inside are filtered out. The minute suspended solids are intercepted by Filter Membrane 1. The filtered water enters the lower interior of the treatment tank and is output through the water outlet pipe. When necessary, the pressure inside the treatment tank is increased by the extrusion pump, thereby improving the efficiency of further filtering the initially filtered aquaculture water.

[0017] S2: When Filter Membrane 1 needs to be cleaned, the motor drives the screw to rotate. Since the regulating valve plate is slidably guided inside the regulating box, the nut connected to the regulating valve plate is pushed by the screw, causing the regulating valve plate to move horizontally. The assembled Filter Membrane 2 corresponds to the interior of the treatment tank, realizing the convenient replacement of the filter component. Moreover, the used filter component, Filter Membrane 1, is located above the connecting pipe and awaits cleaning.

[0018] S3: The cleaning pump sucks clean water into the connecting pipe and inputs it into the installation pipe. It is output through several nozzles and acts on the lower end of Filter Membrane 1, causing the solids accumulated and intercepted at the upper end of Filter Membrane 1 to be washed away. The cleaned sewage is output through the discharge tank, realizing the automatic cleaning of the filter component.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] When the present invention is in use, the aquaculture water after preliminary purification is input into the interior of the treatment tank, and the water is further filtered through Filter Membrane 1 and Filter Membrane 2 of the filter component inside the treatment tank. During the water treatment process, Filter Membrane 1 and Filter Membrane 2 are located inside the regulating valve plate and move with the regulating valve plate to correspond to the treatment tank, avoiding the problem of long-term shutdown operation for filter membrane cleaning, enabling the rapid replacement of the filter component, realizing the convenient cleaning of the filter membrane through the automatic cleaning structure, and allowing two groups of filter components to be pre-stored, improving the convenience of microfiltration after preliminary water treatment in the water treatment system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the front perspective structural schematic diagram of the present invention;

[0022] Figure 2 is the bottom perspective structural schematic diagram of the present invention;

[0023] Figure 3 is the bottom perspective structural schematic diagram of the regulating box of the present invention;

[0024] Figure 4 is the bottom cross-sectional perspective structural schematic diagram of the regulating box of the present invention;

[0025] Figure 5 is the front cross-sectional perspective structural schematic diagram of the regulating valve plate of the present invention;

[0026] Figure 6 Schematic diagram of the main sectional three-dimensional structure of the filter membrane of the present invention;

[0027] Figure 7 Schematic diagram of the side three-dimensional structure of the screw two of the present invention.

[0028] Reference numerals: 1, treatment tank; 2, water inlet pipe; 3, water outlet pipe; 4, support frame; 5, pressure pump; 6, adjustment tank; 7, ladder; 8, upper opening and closing cover; 9, lower opening and closing cover; 10, cleaning pump; 11, discharge tank; 12, support grid; 13, connecting pipe; 14, installation pipe; 15, nozzle; 16, regulating valve plate; 17, filter membrane one; 18, guide rail; 19, slider; 20, motor; 21, screw one; 22, nut; 23, sealing sleeve; 24, pressing frame; 25, support ring; 26, adjustment groove; 27, screw two; 28, assembly groove one; 29, screw hole; 30, rotating rod; 31, assembly groove two; 32, filter membrane two; 33, bearing seat. Detailed implementation manners

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1 to 7 , three embodiments provided by the present invention:

[0031] Embodiment 1:

[0032] A aquaculture circulating water treatment system, including a treatment tank 1, an adjustment tank 6 and a regulating valve plate 16. The treatment tanks 1 are symmetrically distributed and have openings at opposite ends. The outer wall of the treatment tank 1 is sleeved with an adjustment tank 6. Sealing sleeves 23 are provided at opposite ends of the treatment tank 1. A regulating valve plate 16 slidably installed inside the sealing sleeve 23 is provided inside the adjustment tank 6. Assembly grooves one 28 and assembly grooves two 31 are provided inside the regulating valve plate 16. An adjustment groove 26 penetrating through the assembly groove one 28 and the assembly groove two 31 is provided inside the regulating valve plate 16. A filter membrane one 17 is provided inside the assembly groove one 28, and a filter membrane two 32 is provided inside the assembly groove two 31. A motor 20 is provided inside the adjustment tank 6. A nut 22 is provided at one end of the regulating valve plate 16. A screw one 21 threadedly installed with the nut 22 is provided at the output end of the motor 20. A water inlet pipe 2 and a water outlet pipe 3 are respectively connected and installed at opposite ends of the treatment tank 1. A pressure pump 5 is connected and installed at one end of the treatment tank 1;

[0033] On the inner wall of the front side of the adjustment box 6, a guide rail 18 is provided, and at the front end of the regulating valve plate 16, a slider 19 is provided which is slidably mounted on the outer wall of the guide rail 18;

[0034] On the inner walls of the first assembly groove 28 and the second assembly groove 31, a support grid 12 is provided, and the first filter membrane 17 and the second filter membrane 32 are located on the support grid 12;

[0035] At the lower end of the adjustment box 6, a discharge groove 11 is opened, and at the upper end of the adjustment box 6, a lower opening and closing cover 9 is rotatably mounted at the opening of the discharge groove 11;

[0036] At the lower end of the adjustment box 6, a cleaning pump 10 is provided. At the output end of the cleaning pump 10, a connecting pipe 13 is provided inside the lower end of the adjustment box 6. Inside the connecting pipe 13, equally spaced installation pipes 14 are connected and installed. At the upper ends of the installation pipes 14, equally spaced nozzles 15 are provided;

[0037] After the aquaculture water is preliminarily treated, it is conveyed to the treatment box 1 through the water inlet pipe 2. The pressure pump pressurizes the inside of the treatment box 1 to improve the efficiency of the water inside the treatment box 1 passing through the filter assembly. The preliminarily treated water is intercepted by the first filter membrane 17 of the filter assembly, and the water passing through the first filter membrane 17 is output through the water outlet pipe 3. After the first filter membrane 17 is used for a period of time, the motor 20 drives the screw rod to rotate. The screw rod rotates inside the nut 22, pushing the regulating valve plate 16 to move, and then driving the filter assembly inside the regulating valve plate 16 to move. The first filter membrane 17 is separated from the treatment box 1, and the second filter membrane 32 follows the regulating valve plate 16 to move into the treatment box 1, thus realizing the convenient replacement of the filter assembly, avoiding the shutdown operation during the treatment of aquaculture water, realizing the convenient use of the aquaculture water treatment structure. When the first filter membrane 17 enters below the installation pipe 14, the nozzle 15 outputs clean water to act on the lower end of the first filter membrane 17, washing away the dirt on the first filter membrane 17, and the sewage is output through the discharge pipe.

[0038] Embodiment 2:

[0039] It includes a treatment box 1, an adjustment box 6 and a regulating valve plate 16. The treatment boxes 1 are symmetrically distributed and one end of each is open. The outer wall of the treatment box 1 is sleeved with the adjustment box 6. Sealing sleeves 23 are provided at both opposite ends of the treatment box 1. Inside the adjustment box 6, a regulating valve plate 16 is slidably mounted inside the sealing sleeve 23. Inside the regulating valve plate 16, a first assembly groove 28 and a second assembly groove 31 are opened. Inside the regulating valve plate 16, an adjustment groove 26 is opened which penetrates through the first assembly groove 28 and the second assembly groove 31. Inside the first assembly groove 28, a first filter membrane 17 is provided. Inside the second assembly groove 31, a second filter membrane 32 is provided. Inside the adjustment box 6, a motor 20 is provided. At one end of the regulating valve plate 16, a nut 22 is provided. At the output end of the motor 20, a screw rod 21 threadedly installed with the nut 22 is provided. At the opposite ends of the treatment box 1, a water inlet pipe 2 and a water outlet pipe 3 are respectively connected and installed. At one end of the treatment box 1, a pressure pump 5 is connected and installed;

[0040] On the inner wall of the front side of the adjustment box 6, a guide rail 18 is provided, and at the front end of the regulating valve plate 16, a slider 19 is provided which is slidably installed on the outer wall of the guide rail 18;

[0041] On the inner walls of the first assembly groove 28 and the second assembly groove 31, a support grille 12 is provided, and the first filter membrane 17 and the second filter membrane 32 are located on the support grille 12;

[0042] At the lower end of the adjustment box 6, a discharge groove 11 is opened, and at the upper end of the adjustment box 6, a lower opening and closing cover 9 is rotatably installed at the opening of the discharge groove 11;

[0043] At the lower end of the adjustment box 6, a cleaning pump 10 is provided. At the output end of the cleaning pump 10, a connecting pipe 13 is provided inside the lower end of the adjustment box 6. Inside the connecting pipe 13, equally spaced installation pipes 14 are connected and installed. At the upper ends of the installation pipes 14, equally spaced nozzles 15 are provided;

[0044] After the aquaculture water is preliminarily treated, it is conveyed to the treatment box 1 through the water inlet pipe 2. The pressure pump pressurizes the inside of the treatment box 1 to improve the efficiency of the water inside the treatment box 1 passing through the filter assembly. The preliminarily treated water is intercepted by the first filter membrane 17 of the filter assembly, and the water passing through the first filter membrane 17 is output through the water outlet pipe 3. After the first filter membrane 17 is used for a period of time, the motor 20 drives the screw rod to rotate. The screw rod rotates inside the nut 22, pushing the regulating valve plate 16 to move, and then driving the filter assembly inside the regulating valve plate 16 to move. The first filter membrane 17 is separated from the treatment box 1, and the second filter membrane 32 follows the regulating valve plate 16 to move into the treatment box 1, thus realizing the convenient replacement of the filter assembly, avoiding the shutdown operation during the treatment of aquaculture water, and realizing the convenient use of the aquaculture water treatment structure. When the first filter membrane 17 enters below the installation pipe 14, the nozzle 15 outputs clean water to act on the lower end of the first filter membrane 17, washing away the dirt on the first filter membrane 17, and the sewage is output through the discharge pipe.

[0045] On the upper inner walls of the first assembly groove 28 and the second assembly groove 31, a frame-shaped support ring 25 is provided. Below the support ring 25, a frame-shaped pressing frame 24 is provided at the upper edge sides of the first filter membrane 17 and the second filter membrane 32;

[0046] Inside the upper end of the pressing frame 24, a bearing seat 33 is embedded and installed. Inside the inner wall of the support ring 25, a screw hole 29 is opened. Inside the screw hole 29, a second screw rod 27 is threadedly installed. On the outer wall of the second screw rod 27, rotating rods 30 are arranged in a circular array;

[0047] On the outer wall of the treatment box 1, a support frame 4 is provided, and at the front end of the adjustment box 6, a ladder 7 is provided;

[0048] At the upper end of the adjustment box 6, a maintenance opening is opened, and at the upper end of the adjustment box 6, an upper opening and closing cover 8 is rotatably installed at the opening of the maintenance opening;

[0049] During the use of the first filter membrane 17 and the second filter membrane 32, there is a possibility of damage. The staff climbs up to the adjustment box 6 through the ladder 7, opens the maintenance port by opening the upper closing cover. After the maintenance port is opened, it is convenient for the staff to clean the inside of the adjustment box 6. At the same time, when the first filter membrane 17 and the second filter membrane 32 need to be replaced during use, the rotating rod 30 is grasped to apply a rotational force to the second screw rod 27. The rotational force of the second screw rod 27 acts inside the bearing seat 33, and the longitudinal force acts on the first filter membrane 17 and the second filter membrane 32 through the pressing frame 24, to loosen or hold the first filter membrane 17, realizing the replacement of the filter assembly, and ensuring the stable use during the replacement process of the filter assembly.

[0050] Embodiment 3:

[0051] It includes a treatment box 1, an adjustment box 6 and a regulating valve plate 16. The treatment boxes 1 are symmetrically distributed and one end of each is open. The outer wall of the treatment box 1 is sleeved with the adjustment box 6. Sealing sleeves 23 are provided at both opposite ends of the treatment box 1. A regulating valve plate 16 slidably installed inside the sealing sleeve 23 is arranged inside the adjustment box 6. An assembly groove one 28 and an assembly groove two 31 are formed inside the regulating valve plate 16. An adjustment groove 26 penetrating through the assembly groove one 28 and the assembly groove two 31 is formed inside the regulating valve plate 16. The first filter membrane 17 is arranged inside the assembly groove one 28, and the second filter membrane 32 is arranged inside the assembly groove two 31. A motor 20 is arranged inside the adjustment box 6. A nut 22 is arranged at one end of the regulating valve plate 16. A first screw rod 21 threadedly installed with the nut 22 is arranged at the output end of the motor 20. A water inlet pipe 2 and a water outlet pipe 3 are respectively and communicatively installed at the opposite ends of the treatment box 1. A pressure pump 5 is communicatively installed at one end of the treatment box 1;

[0052] A guide rail 18 is arranged on the front inner wall of the adjustment box 6. A slider 19 slidably installed on the outer wall of the guide rail 18 is arranged at the front end of the regulating valve plate 16;

[0053] Supporting grids 12 are arranged on the inner walls of the assembly groove one 28 and the assembly groove two 31. The first filter membrane 17 and the second filter membrane 32 are located on the supporting grids 12;

[0054] A discharge groove 11 is formed at the lower end of the adjustment box 6. A lower opening and closing cover 9 rotatably installed at the opening of the discharge groove 11 is arranged at the upper end of the adjustment box 6;

[0055] A cleaning pump 10 is arranged at the lower end of the adjustment box 6. A connecting pipe 13 located inside the lower end of the adjustment box 6 is arranged at the output end of the cleaning pump 10. Installation pipes 14 distributed at equal intervals are communicatively installed inside the connecting pipe 13. Nozzles 15 distributed at equal intervals are arranged at the upper ends of the installation pipes 14;

[0056] After the aquaculture water is preliminarily treated, it is conveyed into the interior of the treatment tank 1 through the water inlet pipe 2. The pressure pump pressurizes the interior of the treatment tank 1 to improve the efficiency of the water in the treatment tank 1 passing through the filtering assembly. The preliminarily treated water is intercepted by the filter membrane one 17 of the filtering assembly, and the water passing through the filter membrane one 17 is output through the water outlet pipe 3. After the filter membrane one 17 is used for a period of time, the motor 20 drives the screw rod to rotate. The screw rod rotates inside the nut 22, pushing the regulating valve plate 16 to move, and then driving the filtering assembly inside the regulating valve plate 16 to move. The filter membrane one 17 is separated from the treatment tank 1, and the filter membrane two 32 follows the regulating valve plate 16 to move into the interior of the treatment tank 1, thus realizing the convenient replacement of the filtering assembly, avoiding the shutdown operation during the treatment of aquaculture water, and realizing the convenient use of the aquaculture water treatment structure. When the filter membrane one 17 enters below the installation pipe 14, the nozzle 15 outputs clean water to act on the lower end of the filter membrane one 17, washing away the dirt on the filter membrane one 17, and the sewage is output through the discharge pipe.

[0057] At the upper inner walls of the assembly groove one 28 and the assembly groove two 31, there is a frame-shaped support ring 25 provided. Below the support ring 25, there is a frame-shaped pressing frame 24 located at the upper edge sides of the filter membrane one 17 and the filter membrane two 32.

[0058] Inside the upper end of the pressing frame 24, a bearing seat 33 is embedded and installed. Inside the inner wall of the support ring 25, there is a threaded hole 29, and a screw rod two 27 is threadedly installed inside the threaded hole 29. On the outer wall of the screw rod two 27, there are rotating rods 30 arranged in an annular array.

[0059] On the outer wall of the treatment tank 1, there is a support frame 4 provided. At the front end of the adjustment box 6, there is a ladder 7.

[0060] At the upper end of the adjustment box 6, there is a maintenance opening provided. At the upper end of the adjustment box 6, there is an upper opening cover 8 rotatably installed at the opening of the maintenance opening.

[0061] During the use of the filter membrane one 17 and the filter membrane two 32, there is a possibility of damage. The staff climbs onto the adjustment box 6 through the ladder 7, opens the maintenance opening by opening the upper closing cover. After the maintenance opening is opened, it is convenient for the staff to clean the interior of the adjustment box 6. At the same time, when the filter membrane one 17 and the filter membrane two 32 need to be replaced during use, grasp the rotating rod 30 and apply a rotational force to the screw rod two 27. The rotational force of the screw rod two 27 acts inside the bearing seat 33, and the longitudinal force acts on the filter membrane one 17 and the filter membrane two 32 through the pressing frame 24, loosening or pressing the filter membrane one 17 to realize the replacement of the filtering assembly, and ensuring the stable use during the replacement process of the filtering assembly.

[0062] The steps of the aquaculture circulating water treatment method are as follows:

[0063] S1: First, the water inlet pipe 2 is connected to the water tank after preliminary treatment by a pump, and the water outlet pipe 3 is connected to the aeration tank or the virus disinfection tank by a pump. The preliminarily treated aquaculture water is input into the interior of the treatment tank 1 through the water inlet pipe 2. When passing through the filter membrane, the water after preliminary treatment is further filtered through the first filter membrane 17, and the tiny suspended solids inside are filtered. The tiny suspended solids are intercepted by the first filter membrane 17. The filtered water enters the lower interior of the treatment tank 1 and is output through the water outlet pipe 3. When necessary, the interior of the treatment tank 1 is pressurized by a squeeze pump to improve the efficiency of further filtering the preliminarily filtered aquaculture water;

[0064] S2: When the first filter membrane 17 needs to be cleaned, the motor 20 drives the screw to rotate. Since the regulating valve plate 16 is slidably guided inside the regulating box 6, the nut 22 connected to the regulating valve plate 16 is pushed by the screw, causing the regulating valve plate 16 to move horizontally. The second filter membrane 32 to be assembled corresponds to the interior of the treatment tank 1, realizing the convenient replacement of the filter assembly. And the used filter assembly, the first filter membrane 17, is located above the connecting pipe 13 and waits to be cleaned;

[0065] S3: The cleaning pump 10 sucks the cleaning water into the connecting pipe 13 and inputs it into the installation pipe 14, which is output through several nozzles 15 and acts on the lower end of the first filter membrane 17, so that the solids accumulated and intercepted at the upper end of the first filter membrane 17 are washed away. The cleaned sewage is output through the discharge trough 11, realizing the automatic cleaning of the filter assembly.

[0066] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

[0067] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A aquaculture circulating water treatment system, comprising a treatment tank (1), a regulating tank (6) and a regulating valve plate (16), characterized in that: The treatment tanks (1) are symmetrically distributed and have openings at opposite ends. An adjustment tank (6) is sleeved on the outer wall of the treatment tank (1). Sealing sleeves (23) are provided at opposite ends of the treatment tank (1). A regulating valve plate (16) slidably installed inside the sealing sleeve (23) is arranged inside the adjustment tank (6). An assembly groove one (28) and an assembly groove two (31) are formed inside the regulating valve plate (16). An adjustment groove (26) penetrating through the assembly groove one (28) and the assembly groove two (31) is formed inside the regulating valve plate (16). A filter membrane one (17) is arranged inside the assembly groove one (28). A filter membrane two (32) is arranged inside the assembly groove two (31). A motor (20) is arranged inside the adjustment tank (6). A nut (22) is arranged at one end of the regulating valve plate (16). A screw rod one (21) threadedly installed with the nut (22) is arranged at the output end of the motor (20). A water inlet pipe (2) and a water outlet pipe (3) are respectively and communicatively installed at opposite ends of the treatment tank (1). A pressure pump (5) is communicatively installed at one end of the treatment tank (1).

2. The aquaculture circulating water treatment system according to claim 1, wherein: A guide rail (18) is arranged on the front inner wall of the adjustment tank (6). A slider (19) slidably installed on the outer wall of the guide rail (18) is arranged at the front end of the regulating valve plate (16).

3. The aquaculture circulating water treatment system according to claim 1, wherein: Support gratings (12) are arranged on the inner walls of the assembly groove one (28) and the assembly groove two (31). The filter membrane one (17) and the filter membrane two (32) are located on the support gratings (12).

4. A aquaculture circulating water treatment system according to claim 1, wherein: Support rings (25) in a frame shape are arranged on the upper inner walls of the assembly groove one (28) and the assembly groove two (31). A pressing frame (24) in a frame shape and located on the upper edges of the filter membrane one (17) and the filter membrane two (32) is arranged below the support ring (25).

5. The aquaculture circulating water treatment system according to claim 4, wherein: A bearing seat (33) is embedded and installed inside the upper end of the pressing frame (24). A screw hole (29) is formed in the inner wall of the support ring (25). A screw rod two (27) threadedly installed inside the screw hole (29) is arranged. Rotating rods (30) distributed in an annular array are arranged on the outer wall of the screw rod two (27).

6. The aquaculture circulating water treatment system according to claim 1, wherein: A support frame (4) is arranged on the outer wall of the treatment tank (1). A ladder (7) is arranged at the front end of the adjustment tank (6).

7. A aquaculture circulating water treatment system according to claim 1, characterized in that: An inspection opening is formed at the upper end of the adjustment tank (6). An upper opening cover (8) rotatably installed at the opening of the inspection opening is arranged at the upper end of the adjustment tank (6).

8. A aquaculture circulating water treatment system according to claim 1, wherein: A discharge groove (11) is formed at the lower end of the adjustment tank (6). A lower opening cover (9) rotatably installed at the opening of the discharge groove (11) is arranged at the upper end of the adjustment tank (6).

9. The aquaculture circulating water treatment system according to claim 1, wherein: A cleaning pump (10) is arranged at the lower end of the adjustment tank (6). A connecting pipe (13) located inside the lower end of the adjustment tank (6) is arranged at the output end of the cleaning pump (10). Installation pipes (14) distributed at equal intervals are communicatively installed inside the connecting pipe (13). Nozzles (15) distributed at equal intervals are arranged at the upper ends of the installation pipes (14).

10. The aquaculture circulating water treatment system according to claim 1, wherein: The steps of the aquaculture circulating water treatment method are as follows: S1: First, the water inlet pipe (2) is connected to the preliminary treatment water tank by pumping, and the water outlet pipe (3) is connected to the aeration tank or virus disinfection tank by pumping. The preliminarily treated aquaculture water is input into the interior of the treatment tank (1) through the water inlet pipe (2). When passing through the filter membrane, the water after preliminary treatment is further filtered through the first filter membrane (17), and the tiny suspended solids inside are filtered. The tiny suspended solids are intercepted by the first filter membrane (17). The filtered water enters the lower interior of the treatment tank (1) and is output through the water outlet pipe (3). When necessary, the interior of the treatment tank (1) is pressurized by a squeeze pump to improve the efficiency of further filtering the preliminarily filtered aquaculture water; S2: When the first filter membrane (17) needs to be cleaned, the motor (20) drives the screw to rotate. Since the regulating valve plate (16) is slidably guided inside the regulating box (6), the nut (22) connected to the regulating valve plate (16) is pushed by the screw, causing the regulating valve plate (16) to move horizontally. The second filter membrane (32) to be assembled corresponds to the interior of the treatment tank (1), realizing the convenient replacement of the filter component. Moreover, the used filter component, the first filter membrane (17), is located above the connecting pipe (13) and awaits cleaning; S3: The cleaning pump (10) sucks clean water into the connecting pipe (13) and inputs it into the installation pipe (14), which is output through several nozzles (15) and acts on the lower end of the first filter membrane (17), causing the solid matter accumulated and intercepted at the upper end of the first filter membrane (17) to be washed away. The cleaned sewage is output through the discharge tank (11), realizing the automatic cleaning of the filter component.

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