Water quality purification device for high-density crayfish breeding

Abstract

The invention relates to the technical field of lobster breeding, and discloses a high-density lobster breeding water quality purification device which comprises a breeding box, a purification treatment mechanism is arranged on one side of the breeding box, a collection box is arranged on the other side of the breeding box, and a collection frame is arranged in the collection box. The inner wall of the collecting frame is connected with a filter screen plate through a hinge, and a monitoring assembly is arranged on the inner wall of the breeding box; the purification treatment mechanism comprises a purification treatment box, the purification treatment box is arranged on the outer side of the breeding box, and two inclined frame plates are arranged on the inner side of the purification treatment box. Through combination of multi-stage filtration and ultraviolet disinfection, intelligent water quality monitoring and automatic adjustment and design of a movable fishing plate system, efficient water quality purification and accurate management are provided, manual intervention is reduced, the stability of the breeding environment is improved, the maintainability of equipment is improved, and clean, healthy and efficient automatic cleaning of water is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of lobster breeding, and in particular to a water purification device for high-density crayfish breeding. Background Art

[0002] With the rapid development of aquaculture, especially the rise of high-density crayfish farming, water quality management in the farming environment has become an important factor affecting the farming effect. Good water quality has a direct impact on the growth, reproduction and immunity of crayfish. However, under high-density farming conditions, water quality is easily polluted, and the accumulation of pollutants such as suspended matter, organic matter, and bacteria leads to water deterioration, thus affecting the efficiency and output of farming. Therefore, the research and application of water purification and monitoring systems have gradually become key technologies in the aquaculture industry.

[0003] Common water purification devices for crayfish farming start the physical filtration process first. They are equipped with a multi-layer composite filter, the outer layer of which is made of coarse-pore stainless steel mesh, which can quickly intercept large residual bait and feces. The inner layer is a fine nylon filter that can accurately capture tiny particles and ensure that large particles of impurities are effectively intercepted.

[0004] To a certain extent, it can ensure the cleanliness of water and the growth of crayfish, but there are some shortcomings. First, most of the existing multi-stage filtration systems do not have a self-cleaning function. As time goes by, the filter medium is prone to decrease in efficiency due to the accumulation of suspended matter and impurities, and needs to be manually cleaned regularly, which not only increases labor costs, but also affects the continuity and stability of the system. Therefore, a high-density crayfish farming water purification device is proposed to solve the above problems. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a water purification device for high-density crayfish farming. By adopting multi-stage filtration, ultraviolet disinfection, intelligent water quality monitoring and automatic adjustment technology, the present invention achieves efficient water purification and real-time intelligent adjustment, reduces manual intervention, and improves the automation level of the equipment. At the same time, it has a self-cleaning function, reduces maintenance costs, and improves the stability of the farming environment.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a water quality purification device for high-density crayfish farming, comprising a farming box, one side of the farming box is provided with a purification treatment mechanism, the other side of the farming box is provided with a collection box, the interior of the collection box is provided with a collection frame, the inner wall of the collection frame is connected to the filter screen plate through a hinge, and the inner wall of the farming box is provided with a monitoring component;

[0007] The purification mechanism includes a purification box, which is arranged on the outside of the breeding box, and two inclined frame plates are arranged on the inside of the purification box, and a power component is arranged between the inclined frame plate and the inner side of the purification box, and cylindrical grooves are equidistantly provided at the four corners of the inner side of the purification box, and fixed rods are arranged inside the cylindrical grooves, and coarse filter plates, medium filter plates and fine filter plates are equidistantly arranged inside the purification box, and circular blocks are arranged at the four corners of the coarse filter plates, medium filter plates and fine filter plates, and the circular blocks are sleeved on the outside of the fixed rods, and the top of the purification box is connected to the box cover by a plurality of buckles, and cylinders are arranged at the four corners of the bottom of the box cover, and the cylinders are in contact with the top of the fixed rods.

[0008] Preferably, the outer diameter of the fixing rod is gradually reduced from top to bottom, and the outer diameter of the annular block is also gradually reduced from top to bottom, and the annular blocks are all engaged with the corresponding fixing rod.

[0009] Preferably, the top of the breeding box is connected to a salvage board via a movable component, and a salvage net is provided on the inner side of the salvage board.

[0010] Preferably, the moving assembly includes slide rails, and the slide rails are all arranged on the top of the breeding box. The outside of the slide rails are provided with electric sliders, and salvage plates are rotatably connected between the electric sliders. Electric telescopic rods are provided between the electric sliders and the salvage plates.

[0011] Preferably, the power assembly includes a concave pad, which is arranged on the inner bottom wall of the breeding box, a convex slide plate is slidably provided on the inner side of the concave pad, a handle is provided on the front of the convex slide plate, a water pump is provided on the top of the convex slide plate, the input end of the water pump is connected to two straws through a tee, and the straws are equidistantly arranged on the inner wall of the breeding box, the output end of the water pump passes through the inclined frame plate, the input end and the output end of the water pump are provided with quick-release heads, the outer wall of the purification treatment box is connected to the box door through a hinge, and a drain valve is provided at the bottom of the purification treatment box.

[0012] Preferably, a plurality of ultraviolet lamps are evenly spaced on the inner top wall of the box cover, arc grooves are evenly spaced between the purification box and the box cover, nozzle pipes are engaged between the arc grooves, and the nozzles of the nozzle pipes are close to the fine filter plate.

[0013] Preferably, the monitoring component includes a water quality sensor and an oxygen content sensor, and the water quality sensor and the oxygen content sensor are equidistantly arranged on the inner wall of the breeding box, and the water quality sensor and the oxygen content sensor transmit the collected data to the central control system.

[0014] Preferably, the inner wall of the breeding box is also provided with a plurality of aerators, and the aerators are evenly distributed, and the aerators are used to provide the oxygen content in the breeding box.

[0015] Preferably, a plurality of water inlet and outlet valves are equidistantly arranged outside the breeding box, and the water inlet and outlet valves are used for adding water and draining water.

[0016] Preferably, the central control system includes:

[0017] Monitoring module: It is used to transmit the data collected by the water quality sensor and the oxygen content sensor to the central control system;

[0018] Analysis module: It analyzes the data collected in the central control system through the data processing unit.

[0019] The present invention provides a water purification device for high-density crayfish farming, which has the following beneficial effects:

[0020] 1. The present invention achieves efficient water purification effect by adopting a technical solution combining multi-stage filtration and ultraviolet disinfection. After the water flows through multi-stage filtration of coarse, medium and fine filter plates, the pathogenic microorganisms are killed by ultraviolet lamps to ensure water cleanliness. The multi-stage filtration system has a self-cleaning function, which avoids the efficiency reduction of the filter due to impurity accumulation. At the same time, each filter plate can be disassembled for easy regular cleaning and maintenance. Compared with the single filtration or disinfection solution in the prior art, the multiple purification treatments of the present invention can not only more comprehensively remove suspended matter, harmful microorganisms and organic pollutants in the water, but also improve the maintainability and long-term operation stability of the equipment, and reduce the frequency of manual cleaning.

[0021] 2. The present invention uses water quality sensors and oxygen content sensors to monitor water quality in real time, and cooperates with the central control system to automatically adjust water quality parameters, achieving precise control and intelligent management of water quality. Compared with the manual monitoring and adjustment of water quality methods in the prior art, the present invention automatically adjusts the aerator and water replacement according to sensor data through the central control system to ensure that the water quality is within the set range, reducing the burden of manual operation and improving the stability of the breeding environment.

[0022] 3. The present invention adopts a combination of a mobile salvage plate and a salvage net, with an automatically adjustable electric slider and an electric telescopic rod, to achieve the effect of efficiently cleaning floating objects and dead shrimps. Compared with the traditional manual salvage or fixed cleaning device in the prior art, the salvage system of the present invention can be adjusted according to actual needs to ensure that the aquaculture water body is always kept clean, and the designed filter screen effectively avoids the accidental salvage of live shrimps, thereby improving the automation and refinement level of aquaculture management. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is the overall structure diagram of the present invention;

[0024] Figure 2 It is a top view schematic diagram of the present invention;

[0025] Figure 3 For the present invention Figure 2 The enlarged schematic diagram of point A in the middle;

[0026] Figure 4 It is a left side schematic diagram of the present invention;

[0027] Figure 5 It is a left sectional schematic diagram of the present invention;

[0028] Figure 6 It is a front cross-sectional schematic diagram of the present invention;

[0029] Figure 7 For the present invention Figure 6 The enlarged schematic diagram of point B in the middle;

[0030] Figure 8 It is a flow chart of the central control system of the present invention.

[0031] Among them, 1. breeding box; 2. purification treatment mechanism; 201. purification treatment box; 202. box cover; 203. arc groove; 204. buckle; 205. box door; 206. water pump; 207. concave pad; 208. convex slide plate; 209. handle; 2010. quick release head; 2011. tee; 2012. cylindrical groove; 2013. inclined frame plate; 2014. fixing rod; 2015. coarse filter plate; 2016. medium filter Plate; 2017, fine filter plate; 2018, nozzle pipe; 2019, ultraviolet lamp; 2020, cylinder; 2021, drain valve; 2022, ring block; 3, collection box; 4, slide rail; 5, electric slider; 6, salvage plate; 7, collection frame; 8, filter plate; 9, water quality sensor; 10, oxygen content sensor; 11, aerator; 12, straw; 13, inlet and outlet valves; 14, electric telescopic rod; 15, salvage net. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Please refer to the attached Figure 1 -Attached Figure 5The embodiment of the present invention provides a water quality purification device for high-density crayfish breeding, including a breeding box 1, a purification treatment mechanism 2 is arranged on one side of the breeding box 1, the breeding box 1 is used to store crayfish and provide the water environment required for growth, the purification treatment mechanism 2 removes harmful substances and impurities in the water through a multi-stage filtering and disinfection device, ensures the cleanliness and health of the water body, and avoids the influence of water pollution on crayfish, the other side of the breeding box 1 is provided with a collecting box 3, the collecting box 3 is used to collect the floating matter, impurities and dead shrimps cleared out during the salvage process, ensure the cleanliness of the breeding water body and the health of the crayfish, the interior of the collecting box 3 is provided with a collecting frame 7, the inner wall of the collecting frame 7 is connected to the filter screen plate 8 through a hinge, the filter screen plate 8 effectively prevents dead shrimps or impurities from entering the breeding box 1, and can block live shrimps to avoid them from being salvaged by mistake, the inner wall of the breeding box 1 is provided with a monitoring component, which is used to monitor the changes in water quality in real time to ensure that the water quality is always in a suitable growth environment for crayfish;

[0034] The purification mechanism 2 includes a purification box 201, which is used to filter and disinfect the water body. The purification box 201 is arranged on the outside of the breeding box 1, and two inclined frame plates 2013 are arranged on the inside of the purification box 201. The inclined frame plates 2013 help to guide the water flow and promote the uniform distribution of the water flow. A power component is arranged between the inclined frame plates 2013 and the inside of the purification box 201. The power component is used to push the water flow and adjust the direction of the water flow to ensure that the water flow can smoothly pass through the filter medium. The four corners of the inner side of the purification box 201 are equidistantly provided with cylindrical grooves 2012, and the cylindrical grooves 2012 are used to install fixing rods 2014. The inside of the cylindrical grooves 2012 is provided with fixing rods 2014, which provide structural support to maintain the stability of the filter plate. The inside of the purification box 201 is equidistantly provided with coarse filter plates 2015, medium filter plates 2016, and filter plates 2017. The filter plate 2016 and the fine filter plate 2017, the coarse filter plate 2015 is used to intercept larger impurities, the medium filter plate 2016 is used to filter medium-sized particles, and the fine filter plate 2017 is used to remove tiny particles and suspended matter. The four corners of the coarse filter plate 2015, the medium filter plate 2016 and the fine filter plate 2017 are all provided with circular ring blocks 2022, and the circular ring blocks 2022 are all sleeved on the outside of the fixed rod 2014 to ensure that the filter plates are stable and do not shift. The top of the purification treatment box 201 is connected to the box cover 202 through a plurality of buckles 204, and the bottom four corners of the box cover 202 are provided with cylinders 2020, and the cylinders 2020 are in contact with the top of the fixed rod 2014. The box cover 202 can be easily opened for maintenance and cleaning, and the bottom four corners of the box cover 202 are provided with cylinders 2020, and the cylinders 2020 are in contact with the top of the fixed rod 2014, so as to further enhance the stability of the structure;

[0035] The top of the breeding box 1 is connected to a salvage board 6 through a moving component. The salvage board 6 is used to clean floating objects and dead shrimps on the water surface. A salvage net 15 is arranged on the inner side of the salvage board 6. The salvage net 15 can effectively salvage unnecessary materials on the water surface, ensuring that the water body remains clean and avoiding the accumulation of impurities.

[0036] The moving assembly includes a slide rail 4, which is arranged at the top of the breeding box 1, and an electric slider 5 is arranged outside the slide rail 4, and a salvage plate 6 is rotatably connected between the electric sliders 5, and an electric telescopic rod 14 is arranged between the electric slider 5 and the salvage plate 6, and the salvage plate 6 moves through the slide rail 4, and the slide rail 4 is arranged at the top of the breeding box 1, and the electric slider 5 is arranged on the slide rail 4, and the electric slider 5 is connected to the salvage plate 6 through the electric telescopic rod 14, and the electric telescopic rod 14 can adjust the vertical position and horizontal movement of the salvage plate 6;

[0037] The power assembly includes a concave pad 207 to provide support for the water pump 206. The concave pad 207 is arranged on the inner bottom wall of the breeding box 1. A convex slide 208 is slidably provided on the inner side of the concave pad 207. A handle 209 is arranged at the front of the convex slide 208. The top of the convex slide 208 is provided with a water pump 206. The convex slide 208 is operated by the handle 209, which is convenient for users to repair and replace the water pump 206. The water pump 206 is used to promote the flow of water. The input end of the water pump 206 is connected to the water pump 206 through a tee 2011. Two suction pipes 12 are connected, and the suction pipes 12 are used to extract water from the inside of the breeding box 1, and the suction pipes 12 are equidistantly arranged on the inner wall of the breeding box 1, and the output ends of the water pump 206 are all through the inclined frame plate 2013, and the input end and output end of the water pump 206 are both provided with quick-release heads 2010, and the quick-release heads 2010 are convenient for disassembly and maintenance. The outer wall of the purification treatment box 201 is connected to the box door 205 through a hinge, which is convenient for opening for cleaning. The bottom of the purification treatment box 201 is provided with a sewage valve 2021, which can discharge sediment regularly to keep the box clean;

[0038] The outside of the breeding box 1 is equidistantly provided with a plurality of inlet and outlet water valves 13, and the inlet and outlet water valves 13 are used for adding water and draining water. The inlet and outlet water valves 13 are used to control the inlet and outlet of water and regularly replace the water to ensure that the water quality is within a range suitable for the growth of crayfish.

[0039] Please refer to the attached Figure 6 -Attached Figure 7The outer diameter of the fixing rod 2014 is gradually reduced from top to bottom, and the outer diameter of the annular block 2022 is also gradually reduced from top to bottom. The annular block 2022 is engaged with the corresponding fixing rod 2014. The outer diameter of the fixing rod 2014 is gradually reduced from top to bottom, and the outer diameter of the annular block 2022 is also gradually reduced, which facilitates the connection between the fixing rod 2014 and the annular block 2022, enhances the stability of the structure, and avoids the loosening between the fixing rod 2014 and the filter plate during long-term operation. The engagement between the fixing rod 2014 and the annular block 2022 ensures the stability of the filter plate and optimizes the filtering effect;

[0040] The inner top wall of the box cover 202 is evenly provided with a plurality of ultraviolet lamps 2019, which are used to kill pathogenic microorganisms that may exist in the water and provide water disinfection. The purification box 201 and the box cover 202 are evenly provided with arc grooves 203 adjacent to each other, and nozzle pipes 2018 are clamped between the arc grooves 203. The nozzles of the nozzle pipes 2018 are close to the fine filter plate 2017, and the nozzles of the nozzle pipes 2018 are close to the fine filter plate 2017, which are used to wash the fine filter plate 2017 to prevent impurities from accumulating and ensure the filtering effect.

[0041] The monitoring component includes a water quality sensor 9 and an oxygen content sensor 10, which are equidistantly arranged on the inner wall of the breeding box 1. The water quality sensor 9 and the oxygen content sensor 10 monitor the changes in the water quality in the breeding box 1 in real time to ensure the cleanliness and oxygen content of the water body. The water quality sensor 9 and the oxygen content sensor 10 transmit the collected data to the central control system. The inner wall of the breeding box 1 is also provided with a plurality of aerators 11, and the aerators 11 are equidistantly distributed. The aerators 11 are used to provide the oxygen content in the breeding box 1. The aerators 11 are evenly distributed in the breeding box 1 to ensure that the oxygen concentration in the water meets the growth requirements of crayfish.

[0042] Please refer to the attached Figure 8 , the central control system comprises:

[0043] Monitoring module: It is used to transmit the data collected by the water quality sensor 9 and the oxygen content sensor 10 to the central control system;

[0044] Analysis module: It analyzes the data collected in the central control system through the data processing unit to ensure that the breeding environment is always kept in the best condition.

[0045] Working principle: First, the water pump 206 draws water from the breeding box 1 through the suction pipe 12, and transports the water to the purification treatment box 201 through the water pump 206. The water first passes through the coarse filter plate 2015 to intercept larger solid particles and suspended matter, and then flows through the medium filter plate 2016 to further remove medium-sized impurities. Finally, the fine filter plate 2017 filters out tiny particles and suspended matter. The purified water slowly flows into the ultraviolet disinfection area. The ultraviolet lamp 2019 irradiates the water to kill pathogenic microorganisms in the water to ensure water quality safety. The purified water finally flows back to the breeding box 1 through the top fine filter plate 2017. The nozzle pipe 2018 regularly flushes the fine filter plate 2017 to prevent impurities from accumulating and ensure the long-term effectiveness of the filtration system. The flushed water is discharged through the sewage valve 221.

[0046] Water quality monitoring is completed by the water quality sensor 9 and the oxygen content sensor 10, which monitors the water quality and dissolved oxygen content in the breeding box 1 in real time. The sensor transmits the data to the central control system, which receives and uploads the data through the monitoring module. The analysis module analyzes the data in real time to ensure that the water quality is within the set range. Once the water quality parameters do not meet the requirements, the central control system will automatically adjust the water quality, such as starting the aerator 11 or starting the water body replacement program;

[0047] The aerator 11 is automatically adjusted according to the data feedback from the oxygen content sensor 10. When the dissolved oxygen content in the water body is lower than the set value, the aerator 11 starts to work to ensure that there is sufficient oxygen in the water to meet the growth needs of the crayfish;

[0048] At the same time, the salvage board 6 and the salvage net 15 in the breeding box 1 can help remove floating objects and dead shrimps on the water surface. Before starting, take out the water plants in the breeding box 1. The electric slider 5 controls the movement of the salvage board 6 through the slide rail 4. The electric telescopic rod 14 adjusts the vertical position of the salvage board 6 to ensure the smooth progress of the salvage process. After the salvage is completed, the salvaged floating objects and dead shrimps are discharged into the collection box 3. At the same time, the collection frame 7 inside the collection box 3 can be disassembled and taken out. If live shrimps are salvaged, the filter screen plate 8 connected by the hinge inside the collection frame 7 will block the live shrimps, and the live shrimps will crawl back to the breeding box 1. The salvage board 6 automatically resets to maintain the cleanliness of the breeding environment;

[0049] While the water quality in the breeding box 1 is stable, the inlet and outlet water valves 13 are used to periodically replace the breeding water. When the water quality monitoring result is not ideal, the water replacement is controlled by the valve to further optimize the breeding environment.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water purification device for high-density crayfish farming, comprising a farming box (1), characterized in that: A purification treatment mechanism (2) is provided on one side of the breeding box (1), a collection box (3) is provided on the other side of the breeding box (1), a collection frame (7) is provided inside the collection box (3), the inner wall of the collection frame (7) is connected to the filter screen (8) via a hinge, and a monitoring component is provided on the inner wall of the breeding box (1); The purification mechanism (2) comprises a purification box (201), the purification box (201) being arranged outside the breeding box (1), two inclined frame plates (2013) being arranged inside the purification box (201), power components being arranged between the inclined frame plates (2013) and the inside of the purification box (201), cylindrical grooves (2012) being equidistantly provided at the four corners inside the purification box (201), fixing rods (2014) being arranged inside the cylindrical grooves (2012), and coarse filter plates being equidistantly provided inside the purification box (201). (2015), a medium filter plate (2016) and a fine filter plate (2017), the four corners of the coarse filter plate (2015), the medium filter plate (2016) and the fine filter plate (2017) are all provided with circular ring blocks (2022), the circular ring blocks (2022) are all sleeved on the outside of the fixing rod (2014), the top of the purification treatment box (201) is connected to the box cover (202) through a plurality of buckles (204), the bottom four corners of the box cover (202) are provided with cylinders (2020), and the cylinders (2020) are in contact with the top of the fixing rod (2014).

2. A water purification device for high-density crayfish breeding according to claim 1, characterized in that: The outer diameter of the fixing rod (2014) is gradually reduced from top to bottom, and the outer diameter of the annular block (2022) is also gradually reduced from top to bottom. The annular blocks (2022) are all engaged with the corresponding fixing rod (2014).

3. A water purification device for high-density crayfish breeding according to claim 1, characterized in that: The top of the breeding box (1) is connected to a salvage board (6) via a movable assembly, and a salvage net (15) is arranged on the inner side of the salvage board (6).

4. A water purification device for high-density crayfish breeding according to claim 3, characterized in that: The moving assembly comprises a slide rail (4), wherein the slide rail (4) is arranged on the top of the breeding box (1), and an electric slider (5) is arranged outside the slide rail (4), and a salvage plate (6) is rotatably connected between the electric sliders (5), and an electric telescopic rod (14) is arranged between the electric slider (5) and the salvage plate (6).

5. The water purification device for high-density crayfish breeding according to claim 1 is characterized in that: The power assembly comprises a concave pad (207), the concave pad (207) being arranged on the inner bottom wall of the breeding box (1), a convex slide plate (208) slidingly arranged on the inner side of the concave pad (207), a handle (209) being arranged at the front of the convex slide plate (208), a water pump (206) being arranged at the top of the convex slide plate (208), and an input end of the water pump (206) being connected to a Two suction pipes (12) are arranged at equal distances on the inner wall of the breeding box (1); the output ends of the water pumps (206) pass through the inclined frame plate (2013); the input and output ends of the water pumps (206) are provided with quick-release heads (2010); the outer wall of the purification box (201) is connected to the box door (205) via hinges; and a sewage discharge valve (221) is provided at the bottom of the purification box (201).

6. The water purification device for high-density crayfish breeding according to claim 1, characterized in that: The inner top wall of the box cover (202) is evenly spaced with a plurality of ultraviolet lamps (2019), and arc grooves (203) are evenly spaced between adjacent parts of the purification treatment box (201) and the box cover (202), and nozzle pipes (2018) are engaged between the arc grooves (203), and the nozzles of the nozzle pipes (2018) are close to the fine filter plate (2017).

7. The water purification device for high-density crayfish breeding according to claim 1, characterized in that: The monitoring component comprises a water quality sensor (9) and an oxygen content sensor (10), wherein the water quality sensor (9) and the oxygen content sensor (10) are arranged equidistantly on the inner wall of the breeding box (1), and the water quality sensor (9) and the oxygen content sensor (10) transmit the collected data to a central control system.

8. The water purification device for high-density crayfish breeding according to claim 1, characterized in that: The inner wall of the breeding box (1) is also provided with a plurality of oxygenators (11), and the oxygenators (11) are evenly distributed, and the oxygenators (11) are used to provide oxygen content in the breeding box (1).

9. The water purification device for high-density crayfish breeding according to claim 1, characterized in that: A plurality of water inlet and outlet pipe valves (13) are equidistantly arranged outside the breeding box (1), and the water inlet and outlet pipe valves (13) are used for adding water and draining water.

10. The water purification device for high-density crayfish breeding according to claim 7, characterized in that: The central control system comprises: Monitoring module: used for transmitting data collected by the water quality sensor (9) and the oxygen content sensor (10) to the central control system; Analysis module: It analyzes the data collected in the central control system through the data processing unit.

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