Water purification and disinfection device for temporary aquaculture

Abstract

The invention relates to the technical field of aquaculture water treatment, in particular to a water purification and disinfection device for temporary aquaculture, which comprises a pre-treatment unit, a purification and disinfection unit, a post-treatment unit and a temperature adjusting unit, the pre-treatment unit is connected with the purification and disinfection unit, and the purification and disinfection unit is connected with the post-treatment unit; the pre-treatment unit, the purification and disinfection unit and the post-treatment unit are all connected with the temperature adjusting unit; in the operation process, the lifting electric cylinder is started regularly to drive the upper support and the side support plate to ascend and descend, the transmission column is meshed with the mounting groove through teeth to rotate, the flexible scraping plate is driven to do lifting and rotating composite motion through transmission of the center gear and the edge gear, scale and impurities on the surface of an electrode plate are continuously and flexibly removed and scraped, and the supporting wheel guarantees the cleaning and scraping fitting degree; scraped impurities are discharged along with water flow, the situation that the electrode electrolysis effect is affected due to impurity attachment is avoided, meanwhile, hard incrustation caused by long-term accumulation of the impurities is prevented, online maintenance of electrode plates is achieved, and the electrolysis purification effect of the purification and disinfection unit is guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of aquaculture water treatment technology, specifically relating to a water purification and disinfection device for temporary aquatic holding. Background Technology

[0002] Water purification and disinfection devices for temporary aquaculture are commonly used equipment in the aquaculture industry. They use electrochemical electrolysis as the core purification and disinfection method, combined with pre-treatment filtration, post-treatment oxygenation and temperature regulation structures, to remove impurities, purify and disinfect aquaculture water sources and optimize water quality. They are widely used in scenarios such as temporary aquaculture in markets, seedling temporary aquaculture, and short-distance transportation temporary aquaculture.

[0003] In existing aquatic holding water purification and disinfection devices, the purification and disinfection unit is mostly equipped with electrode plates to achieve electrolysis reaction in order to purify and disinfect the water. Since the holding water contains calcium, magnesium ions and various suspended impurities, scale, biological slime and impurities easily adhere to the surface of the electrode plates during long-term electrolysis. Existing methods generally require manual disassembly and scraping of the electrode plates after shutdown, or simple spraying. Manual scraping is inefficient and labor-intensive, and simple spraying cannot completely remove stubborn scale from the electrode plate surface. Frequent shutdowns for scraping will interrupt the water purification and disinfection process, causing fluctuations in the holding water environment and affecting the survival rate of aquatic animals. At the same time, long-term scale adhesion will reduce the electrode electrolysis efficiency, increase the energy consumption of the device, and affect the purification and disinfection effect. Therefore, it is necessary to design a new aquatic holding water purification and disinfection device. Summary of the Invention

[0004] The purpose of this invention is to provide a water purification and disinfection device for temporary aquatic holding that is simple in structure and reasonably designed in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions: A water purification and disinfection device for temporary aquatic holding includes a pretreatment unit, a purification and disinfection unit, a posttreatment unit, and a temperature control unit. The pretreatment unit is connected to the purification and disinfection unit, the purification and disinfection unit is connected to the posttreatment unit, and the pretreatment unit, purification and disinfection unit, and posttreatment unit are all connected to the temperature control unit. The purification and disinfection unit includes two purification tanks, each equipped with an overflow baffle. A delivery pump is fixedly connected to the outer wall of one of the purification tanks. Delivery pipes are provided at both the input and output ends of the delivery pump, and the two delivery pipes are respectively fixed to the two purification tanks. Support beams are evenly arranged on the top of the purification tanks, and auxiliary spraying mechanisms are provided on the support beams. A mounting frame is fixed at the bottom of the support beams, and electrode plates are fixed on both sides of the mounting frame. An electrode treatment mechanism is provided on the mounting frame. The electrode treatment mechanism includes mounting grooves on both sides of the mounting frame. An upper support is slidably connected to the support beams, and a transmission column is symmetrically rotatably connected to the bottom of the upper support. The transmission column is rotatably connected to a side support plate, and a toothed structure at one end of the transmission column engages with a toothed groove on the inner wall of one side of the mounting groove. A flexible cleaning and scraping unit is provided on the side support plate.

[0006] As a further optimization of the present invention, the flexible scraping unit includes a connecting shaft symmetrically rotatably connected to the side support plate, a support wheel is fixedly provided at one end of the connecting shaft, the support wheel abuts against the edge of the electrode plate, and flexible scrapers are evenly arranged between the support wheels, and push frames are provided on both sides of the side support plate.

[0007] As a further optimization of the present invention, an edge gear is fixedly sleeved on the other end of the connecting shaft, and the edge gear meshes with the central gear fixedly sleeved on the transmission column.

[0008] As a further optimization of the present invention, the output end of the lifting electric cylinder is fixedly connected to one side of the bottom of the upper support, and the lifting electric cylinder is fixed to the outer wall of the purification tank.

[0009] As a further optimization of the present invention, the auxiliary spraying mechanism includes a citric acid infusion pipe fixed on a support beam, a valve on the citric acid infusion pipe, and multiple spray pipes connected to the citric acid infusion pipe. The spray pipes are distributed on both sides of the mounting frame, and spray nozzles are evenly opened on the side of the spray pipes closest to the mounting frame. External supports are fixedly installed at both ends of the spray pipes, and a connecting platform is rotatably connected to the external support. A spiral spring is connected between the connecting platform and the external support, and the spiral spring is sleeved on the connecting platform.

[0010] As a further optimization of the present invention, a closed frame is provided between the connecting platforms, and a lever plate is fixedly connected to both ends of the closed frame.

[0011] As a further optimization of the present invention, the post-treatment unit includes a post-treatment pump fixed on one of the purification tanks. The input and output ends of the post-treatment pump are both fixedly connected to post-treatment pipes. The two post-treatment pipes are respectively fixed on the purification tank and the aeration tank. An aeration pump is fixedly connected to the outer wall of the aeration tank. The output end of the aeration pump is connected to an aeration pipe located inside the aeration tank.

[0012] As a further optimization of the present invention, the pretreatment unit includes a third tank body fixed on another purification tank, a second tank body fixed on one side of the third tank body, a first tank body fixed on one side of the second tank body, a sedimentation tank fixed on one side of the first tank body, a filling layer fixed in the first tank body, a first water pump fixed outside the first tank body, a first pipe and an overflow pipe fixed at the output end and input end of the first water pump respectively, the overflow pipe being fixedly sleeved at the bottom of the sedimentation tank, and the first pipe being fixed on the first tank body.

[0013] As a further optimization of the present invention, a second water pump is fixed to the outside of the second pool body, and a second pipe is fixed to both the input and output ends of the second water pump. The two second pipes are respectively fixed to the first pool body and the second pool body. A third water pump is fixed to the outside of the third pool body, and a third pipe is fixed to both the input and output ends of the third water pump. The two third pipes are respectively fixed to the second pool body and the third pool body. A fourth water pump is provided near the outer wall of the purification pool of the third pool body, and a fourth pipe is fixed to both the input and output ends of the fourth water pump. The two fourth pipes are respectively fixed to the third pool body and the purification pool body.

[0014] As a further optimization of the present invention, the temperature control unit includes heat exchange pipes fixed to the bottom of the first pool, the second pool, the third pool, the purification pool and the oxygenation pool. One end of the heat exchange pipe is connected to the medium inlet of the tubular heat exchange equipment, and the other end of the heat exchange pipe is connected to the medium outlet of the tubular heat exchange equipment.

[0015] The beneficial effects of this invention are as follows: 1. During operation, the lifting electric cylinder is periodically activated to drive the upper support and side support plates to rise and fall. The transmission column rotates by meshing with the mounting groove through teeth. The flexible scraper is driven by the central gear and the edge gear to perform a combination of lifting and rotation, which continuously and flexibly scrapes the scale and impurities on the surface of the electrode plate. The support wheel ensures the scraping fit. The scraped impurities are discharged with the water flow, avoiding the adhesion of impurities and affecting the electrolysis effect of the electrode. At the same time, it prevents the long-term accumulation of impurities from forming hard scale, thus maintaining the electrode plate and ensuring the electrolysis purification effect of the purification and disinfection unit.

[0016] 2. During the cleaning process of this invention, the auxiliary spraying mechanism and the electrode treatment mechanism are linked. The side support plate drives the push frame to push the actuating plate, causing the closed frame to deflect and the spray nozzle to open. Citric acid solution is sprayed directionally onto the electrode plate through the infusion pipe and spray pipe to wet, penetrate and soften the scale, reduce cleaning resistance and assist in the removal of impurities. At the same time, the citric acid entering the water can complex heavy metals in the water and stabilize the pH value of the water, avoiding water quality fluctuations. This achieves synergy between cleaning maintenance and water quality control, and is suitable for the temporary holding needs of aquatic products.

[0017] 3. During the cleaning operation of this invention, the push frame pushes the actuating plate, causing the sealing frame to deflect around the connecting table and disengage from the spray nozzle of the spray pipe. After the push frame disengages from the actuating plate, the spiral spring releases its elastic potential energy, driving the sealing frame to rotate back to reset and re-seal the spray nozzle. During the reciprocating contact and disengagement process between the sealing frame and the spray nozzle, its contact surface can scrape off the residual citric acid crystals and a small amount of impurities at the spray nozzle, achieving self-cleaning of the spray nozzle, effectively preventing the spray nozzle from clogging, and ensuring smooth citric acid spraying. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the installation position of the heat exchange pipe in this invention; Figure 3 This is a schematic diagram of the purification and disinfection unit in this invention; Figure 4 This is a schematic diagram showing the location of the citric acid infusion tube in this invention; Figure 5 yes Figure 4 A magnified view of a portion of region A in the middle; Figure 6 This is a schematic diagram of the assembly structure of the auxiliary injection mechanism in this invention; Figure 7 This is a schematic diagram of the assembly structure of the flexible cleaning unit in this invention.

[0019] In the diagram: 1. Pretreatment unit; 2. Purification and disinfection unit; 3. Posttreatment unit; 4. Temperature control unit; 10. Sedimentation tank; 11. First tank; 12. Second tank; 13. Third tank; 14. Filling layer; 15. First water pump; 16. Overflow pipe; 17. Second water pump; 18. Third water pump; 19. Fourth water pump; 21. Purification tank; 22. Overflow baffle; 23. Delivery pipe; 24. Delivery pump; 25. Support beam; 26. Mounting frame; 27. Electrode plate; 28. Electrode treatment mechanism; 29. ​​Auxiliary spraying mechanism; 31. Posttreatment pump. 32. Post-treatment pipeline; 33. Aeration tank; 34. Aeration pump; 41. Heat exchange pipeline; 281. Mounting slot; 282. Upper support; 283. Transmission column; 284. Side support plate; 285. Flexible cleaning unit; 286. Lifting electric cylinder; 291. Citric acid infusion pipe; 292. Spray pipe; 293. External support; 294. Connecting platform; 295. Spiral spring; 296. Enclosure frame; 297. Actuating plate; 298. Pushing frame; 2851. Support wheel; 2852. Flexible scraper; 2853. Edge gear; 2854. Center gear. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0021] Example: Please refer to Figures 1-7A water purification and disinfection device for temporary aquaculture rearing includes a pretreatment unit 1, a purification and disinfection unit 2, a posttreatment unit 3, and a temperature control unit 4. The pretreatment unit 1 is connected to the purification and disinfection unit 2. After the aquaculture water source or the external water source that needs to be treated enters the pretreatment unit 1, it undergoes pretreatment to remove impurities mixed in the water. The purification and disinfection unit 2 is connected to the posttreatment unit 3. The purification and disinfection unit 2 electrolyzes the pretreated water to achieve water purification and disinfection. After purification and disinfection, the water is oxygenated by the posttreatment unit 3 to obtain usable water for temporary aquaculture rearing. The pretreatment unit 1, the purification and disinfection unit 2, and the posttreatment unit 3 are all connected to the temperature control unit 4, which is used to regulate the water temperature in the pretreatment unit 1, the purification and disinfection unit 2, and the posttreatment unit 3. The purification and disinfection unit 2 includes two adjacent purification tanks 21, each equipped with an overflow baffle 22. A delivery pump 24 is fixedly connected to the outer wall of one of the purification tanks 21. Delivery pipes 23 are provided at both the input and output ends of the delivery pump 24. The two delivery pipes 23 are fixed to the two purification tanks 21 respectively. The opening of the delivery pipe 23 connected to the purification tank 21 of the pretreatment unit 1 is located below the purification tank 21, and the opening of the delivery pipe 23 connected to the purification tank 21 of the posttreatment unit 3 is located above the purification tank 21. Support beams 25 are evenly arranged on the top of the purification tank 21. A mounting frame 26 is fixed at the bottom of the support beams 25. Electrode plates 27 are fixed on both sides of the mounting frame 26. The electrode plates 27 are distributed on one side of the overflow baffle 22. Water entering from the top of the purification tank 21 passes through the space between the electrode plates 27 and undergoes electrolysis under the action of the energized electrode plates 27 to achieve purification and disinfection. The water after passing through the electrode plates 27 enters the other side of the overflow baffle 22.

[0022] The post-treatment unit 3 includes a post-treatment pump 31, which is fixed to the outer wall of the purification tank 21 connected to the post-treatment unit 3. The input and output ends of the post-treatment pump 31 are both fixedly connected to post-treatment pipes 32. The two post-treatment pipes 32 are fixed to the purification tank 21 and the oxygenation tank 33, respectively. The outlet of the post-treatment pipe 32 connected to the purification tank 21 is located below the tank body of the purification tank 21, and the outlet of the post-treatment pipe 32 connected to the oxygenation tank 33 is also located below the tank body of the oxygenation tank 33. An oxygenation pump 34 is fixedly connected to the outer wall of the oxygenation tank 33. The output end of the oxygenation pump 34 is connected to an oxygenation pipe, which is arranged at the bottom of the oxygenation tank 33. The oxygen generated by the oxygenation pump 34 is transported to the bottom of the oxygenation tank 33 through the oxygenation pipe and mixes with the water transported by the post-treatment pipe 32 as it rises along the oxygenation tank 33, thereby achieving an oxygenation effect.

[0023] The pretreatment unit 1 includes a third tank 13, which is fixed to a purification tank 21 located away from the aeration tank 33. A second tank 12 is fixed to one side of the third tank 13, a first tank 11 is fixed to one side of the second tank 12, and a sedimentation tank 10 is fixed to one side of the first tank 11. A filling layer 14 is fixed in each of the first tank 11, the second tank 12, and the third tank 13. The filling layer 14 is composed of activated carbon, coral stone, and quartz stone, which can preliminarily filter impurities in the water. A first water pump 15 is fixed to the outside of the first tank 11. A first pipe and an overflow pipe 16 are fixed to the output and input ends of the first water pump 15, respectively. The overflow pipe 16 is fixed to the bottom of the sedimentation tank 10. The first pipe is fixed to the first tank 11, and the pipe opening is located above the filling layer 14 of the first tank 11. A second water pump 17 is fixed to the outside of the second tank 12. A second pipe is fixed to both the input and output ends of the second water pump 17. The two second pipes are respectively fixed to the first tank. On the first pool 11 and the second pool 12, the outlet of the second pipe on the first pool 11 is located below the filling layer 14, and the outlet of the second pipe on the second pool 12 is located above the filling layer 14. A third water pump 18 is fixed to the outside of the third pool 13. The input and output ends of the third water pump 18 are both fixed with third pipes. The two third pipes are fixed to the second pool 12 and the third pool 13 respectively. The outlet of the third pipe on the second pool 12 is located below the filling layer 14, and the outlet of the third pipe on the third pool 13 is located above the filling layer 14. A fourth water pump 19 is provided on the outer wall of the purification pool 21 near the third pool 13. The input and output ends of the fourth water pump 19 are both fixed with fourth pipes. The two fourth pipes are fixed to the third pool 13 and the purification pool 21 respectively. The outlet of the fourth pipe on the third pool 13 is located below the filling layer 14, and the outlet of the fourth pipe fixed on the purification pool 21 is located above the pool body of the purification pool 21.

[0024] Please see Figures 1-3The temperature control unit 4 includes a heat exchange pipe 41 fixed to the bottom of the first tank 11, the second tank 12, the third tank 13, the purification tank 21, and the aeration tank 33. Temperature sensors for detecting water temperature are installed in each of the first tank 11, the second tank 12, the third tank 13, the purification tank 21, and the aeration tank 33. One end of the heat exchange pipe 41 is connected to the medium inlet of a tubular heat exchanger, and the other end is connected to the medium outlet of the tubular heat exchanger (the tubular heat exchanger is existing technology and will not be described in detail here). The aquaculture water source or the external water source to be treated first enters the sedimentation tank 10, where large particles of impurities undergo preliminary sedimentation and separation. Subsequently, the first water pump 15 starts, drawing water from the top of the sedimentation tank 10 through the overflow pipe 16 and transporting it to the first tank 11 via the first pipe. The water then enters the second tank 11. After passing through the first tank 11, the water flows from top to bottom through the filling layer 14. The activated carbon, coral stone, and quartz stone in the filling layer 14 perform preliminary filtration and adsorption of suspended impurities and some organic matter in the water, completing the first stage of pretreatment. The water that has completed the preliminary filtration in the first tank 11 is pumped out from below the filling layer 14 of the first tank 11 by the second pump 17 through the second pipe and transported to the top of the filling layer 14 of the second tank 12. The water then flows from top to bottom through the filling layer 14 of the second tank 12 for secondary impurity filtration and adsorption. Then, the third pump 18 is started and pumps out the water below the filling layer 14 of the second tank 12 through the third pipe and transports it to the top of the filling layer 14 of the third tank 13. The water then flows through the filling layer 14 for the third time, completing all the pre-treatment purification treatment of the pretreatment unit 1 and effectively removing the impurities mixed in the water.

[0025] After pretreatment, the water is pumped out from below the filling layer 14 of the third tank 13 by the fourth water pump 19 through the fourth pipe and transported to the top of the purification tank 21 near the third tank 13. After entering the purification tank 21, the water passes from top to bottom through the space between the electrode plates 27 on both sides of the mounting frame 26. When the electrode plates 27 are energized, an electrolytic electric field is formed to electrolyze the water. The active substances generated by electrolysis achieve purification and disinfection of the water. The water that has completed electrolysis enters the other side of the overflow baffle 22. Then, the transfer pump 24 is started and pumps the water below the purification tank 21 through the transfer pipe 23 and transports it to the top of another purification tank 21. The electrolytic purification and disinfection process described above is repeated within 21 to further enhance the water purification and disinfection effect. The treated water is located on the other side of the overflow baffle 22 of the purification tank 21, preparing for subsequent post-treatment. The purified and disinfected water is drawn out from below the purification tank 21 by the post-treatment pump 31 through the post-treatment pipeline 32 and transported to the bottom of the oxygenation tank 33 of the post-treatment unit 3. At the same time, the oxygenation pump 34 is started, and the generated oxygen is transported to the bottom of the oxygenation tank 33 through the oxygenation pipeline. The oxygen rises from bottom to top in the oxygenation tank 33 and mixes thoroughly with the water transported to the bottom of the oxygenation tank 33 by the post-treatment pipeline 32, completing the oxygenation treatment of the water and finally obtaining usable water that can be used for temporary aquaculture.

[0026] Throughout the entire operation of the device, the temperature control unit 4 works synchronously. The heat exchange medium of the tubular heat exchanger enters the heat exchange pipe 41 fixed at the bottom of the first pool 11, the second pool 12, the third pool 13, the purification pool 21, and the oxygenation pool 33 through the medium inlet. The heat exchange medium flows in the heat exchange pipe 41 and exchanges heat with the water in each pool through the pipe wall, thereby regulating the temperature of the water in each pool. After heat exchange, the medium flows back to the medium outlet of the tubular heat exchanger through the other end of the heat exchange pipe 41, forming a circulating heat exchange to ensure that the water in the pretreatment unit 1, the purification and disinfection unit 2, and the posttreatment unit 3 is maintained within a suitable temperature range.

[0027] Please see Figures 4-7An electrode processing mechanism 28 is provided on the mounting frame 26. The electrode processing mechanism 28 includes mounting grooves 281 on both sides of the mounting frame 26. An upper support 282 is slidably connected to the support beam 25. The output end of a lifting electric cylinder 286 is fixedly connected to one side of the bottom of the upper support 282, and the lifting electric cylinder 286 is fixed to the outer wall of the purification tank 21. A transmission column 283 is symmetrically rotatably connected to the bottom of the upper support 282. The transmission column 283 is rotatably connected to the side support plate 284, and a tooth structure at one end of the transmission column 283 meshes with a tooth groove on one side of the inner wall of the mounting groove 281 to form a gear. The transmission structure of the strip includes a flexible cleaning unit 285 mounted on the side support plate 284. The flexible cleaning unit 285 includes a connecting shaft symmetrically rotatably connected to the side support plate 284. One end of the connecting shaft is fixedly equipped with a support wheel 2851, which abuts against the edge of the electrode plate 27. Flexible scrapers 2852 for cleaning impurities adhering to the electrode plate 27 are evenly arranged between the support wheels 2851. Push frames 298 are mounted on both sides of the side support plate 284. The other end of the connecting shaft is fixedly fitted with an edge gear 2853, which meshes and is fixedly fitted onto the transmission column 2. The central gear 2854 on 83 is periodically cleaned and maintained during the use of the device. During cleaning and maintenance, the lifting cylinder 286 is activated, driving the upper support 282 to perform low-speed vertical reciprocating motion along the support beam 25, which in turn drives the side support plate 284 and the flexible cleaning unit 285 to rise and fall synchronously. During the rising and falling of the side support plate 284, the tooth structure at the end of the transmission column 283 meshes with the tooth groove on the inner wall of the mounting groove 281, causing the transmission column 283 to rotate. The transmission column 283 drives the connecting shaft and the flexible scraper 2852 synchronously through the meshing of the central gear 2854 and the edge gear 2853. The flexible scraper 2852 rotates and lifts in a combined motion, continuously and flexibly scraping the surface of the electrode plate 27 to remove scale and impurities adhering to the plate. The support wheel 2851 rolls along the edge of the electrode plate 27 to ensure stable contact between the flexible scraper 2852 and the plate surface. The scraping process is uniform and reliable. The loosened impurities are removed from the surface of the electrode plate 27 by the combined action of the water flow and the rotation of the flexible scraper 2852, and discharged with the water flow, preventing re-adhesion. This achieves the cleaning and maintenance of the surface of the electrode plate 27, ensuring the continuous and stable operation of the electrolytic purification and disinfection process.

[0028] An auxiliary spraying mechanism 29 is provided on the support beam 25. The auxiliary spraying mechanism 29 includes a citric acid infusion pipe 291 fixed on the support beam 25. The citric acid infusion pipe 291 is equipped with a valve and is used to connect to an external citric acid storage device. Multiple spray pipes 292 are connected to the citric acid infusion pipe 291. The spray pipes 292 are distributed on both sides of the mounting frame 26, and the spray pipes 292 have spray nozzles evenly distributed on the side closest to the mounting frame 26. The spray nozzles face directly toward the electrode plate 27. External supports 293 are fixedly provided at both ends of the spray pipes 292, and connecting rods are rotatably connected to the external supports 293. A connecting platform 294 is provided, and a spiral spring 295 is connected between the connecting platform 294 and the outer support 293. The spiral spring 295 is sleeved on the connecting platform 294. A sealing frame 296 is provided between the connecting platforms 294. A deflector plate 297 is fixedly connected to both ends of the sealing frame 296. Pushing frames 298 for pushing the deflector plate 297 to deflect are fixedly provided on both sides of the side support plate 284. When the spiral spring 295 is in a non-stressed state, the sealing frame 296 adheres to and blocks the spray port of the spray pipe 292. The auxiliary spray mechanism 29 on the support beam 25 works in conjunction with the electrode processing mechanism 28. When the flexible cleaning unit 285 During startup, the side support plate 284 drives the push frame 298 to rise and fall synchronously. During movement, the push frame 298 contacts and pushes the actuating plate 297, causing the sealing frame 296 to deflect around the connecting platform 294. The spiral spring 295 is twisted and stores energy. The sealing frame 296 disengages from the nozzle of the spray pipe 292, and the nozzle is in the open state. At this time, the valve on the citric acid infusion pipe 291 opens, and the citric acid solution in the external citric acid storage device is transported to each spray pipe 292 via the citric acid infusion pipe 291. It is then sprayed directionally onto the surface of the electrode plate 27 through the nozzles on the spray pipe 292, affecting the electrode plate. The scale on 27 is moistened, penetrated and softened, and the flexible scraping unit 285 helps to remove impurities. When the push frame 298 disengages from the toggle plate 297, the spiral spring 295 releases its elastic potential energy, driving the connecting platform 294 and the sealing frame 296 to rotate and reset. The sealing frame 296 reattaches and seals the spray nozzle of the spray pipe 292, and the citric acid spray stops simultaneously to prevent the citric acid solution from continuously entering the water body. This achieves on-demand and controllable auxiliary spray cleaning. At the same time, the citric acid output into the water body can complex heavy metals in the water, stabilize the pH, and optimize the temporary holding water environment, achieving synergistic compatibility between scale cleaning maintenance and water quality control.

[0029] It should be noted that, in the use of this aquatic temporary holding water purification and disinfection device, the aquaculture water source or the external water source to be treated first enters the sedimentation tank 10 of the pretreatment unit 1 to complete the initial sedimentation of large particulate impurities; then the first water pump 15 starts, and draws water from the top of the sedimentation tank 10 through the overflow pipe 16, and transports it to the first tank 11 through the first pipeline. The water passes through the filling layer 14 from top to bottom, and is filtered and adsorbed by activated carbon, coral stone and quartz stone. The water treated in the first tank 11 is drawn out from below the filling layer 14 by the second water pump 17 through the second pipeline and transported to the filling layer 14 above the second tank 12. The water passes through the filter layer again to complete the second stage of filtration; then the third water pump 18 starts, draws out the filtered water from the second tank 12 and transports it to the filling layer 14 above the third tank 13 to complete the third stage of filtration, thoroughly remove water impurities, and complete the pretreatment; After pretreatment, the water is pumped out from below the filling layer 14 of the third tank 13 by the fourth water pump 19 through the fourth pipe and transported to the top of the purification tank 21 near the third tank 13 in the purification and disinfection unit 2. The water flows from top to bottom between the electrode plates 27. The electrode plates 27 are energized to form an electrolytic electric field to purify and disinfect the water. After treatment, the water enters the other side of the overflow baffle 22. Then, the delivery pump 24 is started and the water below the purification tank 21 is drawn out through the delivery pipe 23 and transported to the top of another purification tank 21. The water repeats the electrolytic purification process to further improve the treatment effect. After purification and disinfection, the post-treatment pump 31 is started and the water below the purification tank 21 is drawn out through the post-treatment pipe 32 and transported to the bottom of the oxygenation tank 33. At the same time, the oxygenation pump 34 is started and oxygen is transported to the bottom of the oxygenation tank 33 through the oxygenation pipe. Oxygen rises from bottom to top and mixes fully with the transported water to complete the oxygenation treatment. Finally, usable water that can be used for temporary aquaculture is obtained. Throughout the entire operation of the device, the temperature control unit 4 works synchronously: the heat exchange medium of the tubular heat exchanger enters the heat exchange pipe 41 at the bottom of each pool through the medium inlet, and exchanges heat with the water through the pipe wall; the temperature sensor of each pool monitors the water temperature in real time, and the heat exchange medium flows back to the medium outlet through the other end of the pipe to form a circulating heat exchange, ensuring that the water in each unit is maintained at a suitable temperature. During operation, the lifting cylinder 286 is periodically activated, driving the upper support 282 to reciprocate vertically at low speed along the support beam 25, which in turn drives the side support plate 284 and the flexible scraping unit 285 to rise and fall synchronously. When the side support plate 284 rises and falls, the teeth at the end of the transmission column 283 mesh with the teeth in the mounting groove 281 and rotate. Through the transmission of the central gear 2854 and the edge gear 2853, the flexible scraper 2852 is driven to rotate. Under the combined motion of rising and rotating, the flexible scraper 2852 continuously and flexibly scrapes the scale and impurities on the surface of the electrode plate 27. The support wheel 2851 rolls along the edge of the electrode plate 27 to ensure stable scraping. The impurities that are loosened by the scraping are detached from the electrode plate by the water flow and the agitation of the rotating scraper and discharged with the water, preventing re-attachment. During the cleaning process, the auxiliary spraying mechanism 29 and the electrode treatment mechanism 28 work in conjunction: the side support plate 284 drives the push frame 298 to rise and fall synchronously, pushes the actuating plate 297 to deflect the sealing frame 296, the spiral spring 295 stores energy, and the spray nozzle of the spray pipe 292 opens; at this time, the valve of the citric acid infusion pipe 291 opens, and the citric acid solution is sprayed directionally from the spray nozzle onto the electrode plate 27 through the infusion pipe and the spray pipe 292, softening the scale and assisting in cleaning. After the push frame 298 is disengaged, the spiral spring 295 resets and drives the sealing frame 296 to block the spray nozzle, and the citric acid spraying stops; the citric acid entering the water body simultaneously complexes heavy metals, adjusts pH, and optimizes the temporary holding water environment, realizing the synergy of scale removal and water quality control, and ensuring the continuous and stable operation of the device.

[0030] The above-described embodiments are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A water purification and disinfection device for temporary aquatic holding, comprising a pretreatment unit (1), a purification and disinfection unit (2), a posttreatment unit (3), and a temperature control unit (4), characterized in that: The pretreatment unit (1) is connected to the purification and disinfection unit (2), the purification and disinfection unit (2) is connected to the posttreatment unit (3), and the pretreatment unit (1), the purification and disinfection unit (2) and the posttreatment unit (3) are all connected to the temperature control unit (4); the purification and disinfection unit (2) includes two purification tanks (21), each of which is equipped with an overflow baffle (22), and a delivery pump (24) is fixedly connected to the outer wall of one of the purification tanks (21). The input and output ends of the delivery pump (24) are equipped with delivery pipes (23), and the two delivery pipes (23) are fixed on the two purification tanks (21) respectively; support beams (25) are evenly arranged on the top of the purification tank (21), and an auxiliary spraying mechanism is arranged on the support beams (25). 29) A mounting bracket (26) is fixed at the bottom of the support beam (25). Electrode plates (27) are fixed on both sides of the mounting bracket (26). An electrode processing mechanism (28) is provided on the mounting bracket (26). The electrode processing mechanism (28) includes mounting grooves (281) opened on both sides of the mounting bracket (26). An upper support (282) is slidably connected to the support beam (25). A transmission column (283) is symmetrically rotatably connected to the bottom of the upper support (282). The transmission column (283) is rotatably connected to the side support plate (284). A tooth structure is provided at one end of the transmission column (283) to mesh with the tooth groove opened on one side of the inner wall of the mounting groove (281). A flexible cleaning unit (285) is provided on the side support plate (284).

2. The water purification and disinfection device for temporary aquatic holding according to claim 1, characterized in that: The flexible scraping unit (285) includes a connecting shaft symmetrically rotatably connected to the side support plate (284). One end of the connecting shaft is fixedly provided with a support wheel (2851). The support wheel (2851) abuts against the edge of the electrode plate (27). Flexible scrapers (2852) are evenly arranged between the support wheels (2851). Push frames (298) are provided on both sides of the side support plate (284).

3. The water purification and disinfection device for temporary aquatic holding according to claim 2, characterized in that: The other end of the connecting shaft is fixedly fitted with an edge gear (2853), which meshes with the center gear (2854) fixedly fitted on the transmission column (283).

4. The water purification and disinfection device for temporary aquatic holding according to claim 1, characterized in that: The bottom side of the upper support (282) is fixedly connected to the output end of the lifting electric cylinder (286), and the lifting electric cylinder (286) is fixed on the outer wall of the purification tank (21).

5. The water purification and disinfection device for temporary aquatic holding according to claim 1, characterized in that: The auxiliary spraying mechanism (29) includes a citric acid infusion pipe (291) fixed on the support beam (25), a valve is provided on the citric acid infusion pipe (291), and multiple spray pipes (292) are connected to the citric acid infusion pipe (291). The spray pipes (292) are distributed on both sides of the mounting frame (26), and the spray pipes (292) are evenly provided with spray nozzles on the side of the mounting frame (26) closer to the spray pipes (292). External supports (293) are fixedly provided at both ends of the spray pipes (292). A connecting platform (294) is rotatably connected to the external support (293), and a spiral spring (295) is connected between the connecting platform (294) and the external support (293). The spiral spring (295) is sleeved on the connecting platform (294).

6. The water purification and disinfection device for temporary aquatic holding according to claim 5, characterized in that: A closed frame (296) is provided between the connecting platforms (294), and a toggle plate (297) is fixedly connected to both ends of the closed frame (296).

7. The water purification and disinfection device for temporary aquatic holding according to claim 1, characterized in that: The post-treatment unit (3) includes a post-treatment pump (31) fixed on one of the purification tanks (21). The input and output ends of the post-treatment pump (31) are fixedly connected to post-treatment pipes (32). The two post-treatment pipes (32) are fixed on the purification tank (21) and the oxygenation tank (33) respectively. An oxygenation pump (34) is fixedly connected to the outer wall of the oxygenation tank (33). The output end of the oxygenation pump (34) is connected to an oxygenation pipe located in the oxygenation tank (33).

8. The water purification and disinfection device for temporary aquatic holding according to claim 7, characterized in that: The pretreatment unit (1) includes a third tank (13) fixed on another purification tank (21), a second tank (12) fixed on one side of the third tank (13), a first tank (11) fixed on one side of the second tank (12), a sedimentation tank (10) fixed on one side of the first tank (11), a filling layer (14) fixed in the first tank (11), the second tank (12) and the third tank (13), a first water pump (15) fixed on the outside of the first tank (11), a first pipe and an overflow pipe (16) fixed at the output end and the input end of the first water pump (15) respectively, the overflow pipe (16) fixedly sleeved at the bottom of the sedimentation tank (10), and the first pipe fixed on the first tank (11).

9. The water purification and disinfection device for temporary aquatic holding according to claim 8, characterized in that: A second water pump (17) is fixed to the outside of the second pool (12). The input and output ends of the second water pump (17) are both fixed with second pipes. The two second pipes are respectively fixed to the first pool (11) and the second pool (12). A third water pump (18) is fixed to the outside of the third pool (13). The input and output ends of the third water pump (18) are both fixed with third pipes. The two third pipes are respectively fixed to the second pool (12) and the third pool (13). A fourth water pump (19) is installed on the outer wall of the purification pool (21) near the third pool (13). The input and output ends of the fourth water pump (19) are both fixed with fourth pipes. The two fourth pipes are respectively fixed to the third pool (13) and the purification pool (21).

10. The water purification and disinfection device for temporary aquatic holding according to claim 9, characterized in that: The temperature control unit (4) includes a heat exchange pipe (41) fixed at the bottom of the first pool (11), the second pool (12), the third pool (13), the purification pool (21) and the oxygenation pool (33). One end of the heat exchange pipe (41) is connected to the medium inlet of the tubular heat exchange equipment, and the other end of the heat exchange pipe (41) is connected to the medium outlet of the tubular heat exchange equipment.

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