Multifunctional pond recirculating aquaculture system capable of pushing water and making flow

Abstract

The utility model discloses a multifunctional pond recirculating aquaculture system capable of pushing water to make flow, which comprises a purification tank and a control device, the tank wall of the purification tank is provided with a water inlet and a water outlet, the water inlet is connected with a water pumping pipeline provided with a circulating water pump, and the water inlet end of the water pumping pipeline extends into an aquaculture pond; the purification tank is connected with an insertion type nano aeration device, and a foam discharging device is arranged at the top of the purification tank; the water outlet is connected with a water outlet pipeline, the water outlet pipeline is provided with a water-pushing flow-making aeration oxygenation device located above the culture pond, and the position height of the water-pushing flow-making aeration oxygenation device is lower than the position height of the purification tank. According to the utility model, various water treatment devices are integrated into the purification tank in an integrated and centralized manner through reasonable layout, so that the overall space distribution size of a culture system is reduced, water pushing and flow making for aeration and oxygenation can be automatically carried out through the gravity action, the culture cost is greatly reduced, and the oxygenation effect and the medicine throwing diffusivity can be improved through water pushing and flow making.

Description

Technical Field

[0001] The utility model relates to the technical field of pond aquaculture water circulation treatment, in particular to a multifunctional water-pushing and flow-creating pond circulating water aquaculture system. Background Art

[0002] Traditional pond aquaculture has been used for many years, and there has always been a passive aquaculture situation of pollution first and treatment later during the aquaculture process. During the traditional pond aquaculture process, during the aquaculture process from fry stocking to fish harvesting, which lasts for several months, the residual bait produced by the fed feed and the excrement produced after the fish's digestion and absorption are all deposited in the aquaculture pond. The residual bait and excrement are converted into water-soluble organic matter after being soaked by the aquaculture water, and then converted into harmful substances such as ammonia nitrogen and nitrite under the action of temperature and time, resulting in the large reproduction and growth of various bacteria and viruses, which is one of the main inducements for frequent occurrence of various fish diseases. In order to alleviate the vicious cycle of aquaculture water quality, traditional pond aquaculture often takes measures such as continuous water change, medication, and various biological agents to condition the water quality to ensure the safety of aquaculture organisms. During the aquaculture process lasting for several months, the operation of conditioning the water quality is repeated continuously, which not only increases various risks in the aquaculture process, but also restricts the aquaculture density and affects the harmless and healthy aquaculture. Therefore, the traditional pond aquaculture mode has problems such as low yield, many diseases, poor benefits, and large pollution.

[0003] Over the years, the traditional mode of pond aquaculture has basically remained unchanged, which is mainly reflected as follows: (1) The traditional pond aquaculture adopts a passive aquaculture mode of pollution first and treatment later; (2) The aquaculture water lacks circulating fluidity and is static water aquaculture; (3) The problem of uneven fish sizes and polarization during the traditional pond aquaculture process has not changed; (4) The way of manually sprinkling aquaculture protection products and medicines during the traditional pond aquaculture process has not changed; (5) The problems of relying on the weather, low scientific and technological content, poor anti-risk ability, and poor economic benefits in the traditional pond aquaculture have not changed.

[0004] Therefore, in view of the problems and pain points that occur during the traditional pond aquaculture process, it is necessary to innovate new pond aquaculture models, new processes, and new technologies. Summary of the Utility Model

[0005] In view of the problems and pain points that occur in the traditional pond aquaculture process, this utility model starts from the source of aquaculture problems, changes the passive aquaculture situation of traditional pond static aquaculture, treating pollution after it occurs, relying on the weather, only relying on aquaculture protection products and drugs to solve the water quality of aquaculture water, low scientific and technological content in the industry, and poor economic benefits. It provides a multifunctional water-pushing and water-circulating pond recirculating aquaculture system and its usage method. Adopting the water-pushing and water-circulating pond recirculating aquaculture mode, by setting up a purification tank installed overhead, the water body in the aquaculture pond can be continuously pumped to the purification tank at a high place through a pumping pipeline for aeration and oxygenation, foam separation, ozone disinfection, dosing, etc. And the treated circulating water can utilize the gravitational potential energy of the water level difference to realize kinetic energy conversion through the water-pushing and water-circulating aeration and oxygenation device, forming an inclined upward water-pushing water flow, so as to flow back into the aquaculture pond again, and realize non-powered secondary air cutting for oxygenation. This not only reduces the overall spatial distribution size of the aquaculture system, but also can automatically push water and create a water flow for oxygenation through the action of gravity. One 1.5KW aerator can be reduced at the water spraying place. The water-pushing and water-circulating can improve the oxygenation effect and the drug spraying diffusion rate, and well solve the problems mentioned in the above-mentioned prior art.

[0006] To achieve the above object, this utility model adopts the following technical solutions:

[0007] This utility model provides a multifunctional water-pushing and water-circulating pond recirculating aquaculture system, including a purification tank and a control device. The tank wall of the purification tank is provided with a water inlet and a water outlet. The water inlet is connected with a pumping pipeline installed with a circulating water pump, and the water inlet end of the pumping pipeline extends into the aquaculture pond; the purification tank is connected with an inserted nano-aeration device, and the top of the purification tank is provided with a foam discharge device; the water outlet is connected with a water outlet pipeline, and the end of the water outlet pipeline far away from the purification tank is provided with a water-pushing and water-circulating aeration and oxygenation device located above the aquaculture pond, and the position height of the water-pushing and water-circulating aeration and oxygenation device is lower than the position height of the purification tank; the control device is respectively connected with the circulating water pump and the inserted nano-aeration device.

[0008] Furthermore, the water-pushing and water-circulating aeration and oxygenation device includes a horizontally distributed water-pushing and water-circulating pipe. The middle part of the water-pushing and water-circulating pipe is communicated with the water outlet end of the water outlet pipeline, and a plurality of water outlet holes for spraying water obliquely upward are opened on the pipe wall of the water-pushing and water-circulating pipe. Under the action of gravity, the water in the purification tank flows out through the water outlet pipeline, and a water-pushing water flow that sprays obliquely upward is formed at the water outlet holes. After the water-pushing water flow falls into the aquaculture pond, a large amount of air can be brought in, so as to achieve the purpose of non-powered secondary automatic oxygenation, and increase the oxygenation coverage area, improve the oxygenation effect and the drug spraying diffusion rate.

[0009] Preferably, the included angle between the central axis of the water outlet and the horizontal plane is 45 degrees. In this way, the water-pushing flow can reach more than 2.5 meters, which can increase the spraying travel of the water-pushing flow and make the water-pushing flow diverge more at the water inlet, improving the oxygenation effect, having a wider oxygenation coverage area, facilitating the diffusion of the thrown medicine and enabling the medicine to be evenly mixed with the aquaculture water after entering the water, and reducing the harm to fish caused by excessive concentration due to uneven mixing.

[0010] Preferably, the water outlet is a long strip-shaped through hole, which can increase the lateral width of the water-pushing flow and the area of contact with the air, thereby improving the oxygenation effect and the medicine throwing diffusion rate.

[0011] Furthermore, the plug-in type nano-aeration device includes an air pump, an air inlet pipe, and a plurality of nano-aeration pipes distributed in parallel. The air outlet end of the air pump is connected to one end of the air inlet pipe, and the other end of the air inlet pipe is respectively connected to one end of each nano-aeration pipe. The other end of each nano-aeration pipe is inserted into the inner cavity of the purification tank, and the nano-aeration pipe has an aeration port at the end located inside the purification tank. By starting the air pump, the water in the purification tank can be continuously aerated and oxygenated, and at the same time, the water-soluble organic matter in the water can be removed.

[0012] Furthermore, the foam discharging device includes a collecting cover located at the top of the purification tank and a diversion cover communicated with the top of the collecting cover. The diversion cover is connected with a foam discharging pipe, and the foam discharging pipe is connected with a foam collecting bucket at the end far away from the diversion cover. In this way, the scum foam formed after the aeration treatment can be converged by the collecting cover and finally drained into the foam discharging pipe through the diversion of the diversion cover, so as to be collected in the foam collecting bucket.

[0013] Furthermore, the purification tank is connected with an ozone adding device. The ozone adding device includes an ozone generator, a gas transmission pipeline, and a gas input port arranged on the tank wall of the purification tank. The two ends of the gas transmission pipeline are respectively connected with the ozone generator and the gas input port. By starting the ozone generator, the aquaculture water in the purification tank can be continuously introduced with ozone for ozone sterilization and disinfection treatment, thereby improving the water quality.

[0014] Alternatively, the purification tank is connected with an ozone adding device. The ozone adding device includes an oxygen source ozone integrated machine, a gas transmission pipeline, and a gas input port arranged on the tank wall of the purification tank. The pure oxygen output end and the ozone output end of the oxygen source ozone integrated machine are respectively communicated with one end of the gas transmission pipeline through valves, and the other end of the gas transmission pipeline is connected with the gas input port. In this way, the oxygen source ozone integrated machine can choose to introduce ozone or pure oxygen into the purification tank.

[0015] Furthermore, the purification tank is connected with a water circulation device. The water circulation device includes a circulation pipeline, a circulation water pump, and a circulation water outlet and a circulation water inlet provided on the tank wall of the purification tank. The circulation water pump is connected in series in the circulation pipeline, and both ends of the circulation pipeline are respectively connected to the circulation water outlet and the circulation water inlet. By starting the circulation water pump, the water in the purification tank can be pumped out and then re-flowed back into the purification tank, realizing the cyclic flow of water in the purification tank, so as to promote and improve the effects of ozone disinfection and aeration oxygenation treatment.

[0016] Furthermore, the purification tank is connected with a liquid level automatic balancing device. The liquid level automatic balancing device includes a first vertical pipe and a second vertical pipe which are vertically and parallelly distributed. The upper ends of the first vertical pipe and the second vertical pipe are both open. A diversion pipe is connected between the first vertical pipe and the second vertical pipe. An enhanced drainage port is provided on the tank wall of the purification tank. The lower end of the first vertical pipe is connected to the enhanced drainage port, the lower end of the second vertical pipe is connected to the water outlet pipe, and the position height of the diversion pipe is higher than the position height of the water outlet. During the water circulation process in the daytime, due to the peak electricity consumption period, the operating power of the circulation water pump is relatively small compared with normal use, resulting in slower water pumping, and the water level in the purification tank is not very high. The water in the purification tank can be smoothly discharged through the water outlet. However, when the electricity consumption is at a valley at night, the operating power of the circulation water pump at this time is increased compared with normal use, resulting in faster water pumping, and the water level in the purification tank will also increase accordingly. In order to prevent the water in the purification tank from surging upwards into the diversion cover, a liquid level automatic balancing device is provided, which can accelerate drainage. Specifically, the first vertical pipe, the second vertical pipe and the diversion pipe together form a communicating vessel in an H shape. Since the position height of the diversion pipe is higher than the position height of the water outlet, when the water level in the purification tank rises to a certain height, the water in the purification tank can still flow through the enhanced drainage port, the first vertical pipe, the diversion pipe and the second vertical pipe in sequence and be discharged into the water outlet pipe. Preferably, the diameter of the enhanced drainage port is larger than the diameter of the water outlet, so that the rapid drainage effect and the water level balancing ability of the liquid level automatic balancing device can be increased.

[0017] Furthermore, the water outlet pipe is connected with a timing automatic dosing device. The timing automatic dosing device includes a dosing barrel, a dosing pump, a dosing concentration regulating valve and a dosing pipeline. The water inlet of the dosing pump is connected to the bottom of the dosing barrel, the input end of the dosing concentration regulating valve is connected to the water outlet of the dosing pump, the output end of the dosing concentration regulating valve is connected to one end of the dosing pipeline, and the other end of the dosing pipeline is connected to the water outlet pipe. By providing the dosing pump, the medicine in the dosing barrel can be added into the water outlet pipe through the dosing pipeline, so as to be mixed with the water flowing back to the aquaculture pond. By adjusting the dosing concentration regulating valve with scales, the dosing concentration can be adjusted within the range of 50 - 300 times, which can meet the requirements of different medicines using this ratio.

[0018] Furthermore, a support base and a cement base are provided below the purification tank. The cement base is cast and fixed on the pond foundation. The support base includes an upper support base and a lower support base connected by splicing. The top of the upper support base is connected to the bottom of the purification tank, the bottom of the lower support base is connected to the cement base, the upper support base and the lower support base are rotatably connected, and a locking structure is provided between the upper support base and the lower support base. By casting the cement base and installing the support base on the cement base to fix the purification tank overhead, on the one hand, the purification tank can have a certain height to convert the circulating pumping into gravitational potential energy, and on the other hand, the support base can be used to install and fix the water-pushing, water-creating, aeration and oxygenation device, the medicine adding barrel and the control device. In addition, the support base is installed by splicing, so that the upper support base can be assembled with the purification tank in advance, and the lower support base is assembled with the cement base. Finally, the upper support base and the lower support base can be locked and connected by using a locking structure such as a bolt and nut assembly. In this way, the construction is convenient. At the same time, the upper support base and the lower support base are rotatably connected. During installation and maintenance, the water-pushing, water-creating, aeration and oxygenation device can be rotated 90 degrees to the pond foundation, and then rotated 90 degrees in the opposite direction to the pond after installation and maintenance are completed, and then locked and fixed, which is relatively convenient.

[0019] Furthermore, the support base is connected with an L-shaped first support frame for supporting the water outlet pipe, and the first support frame is connected with obliquely distributed reinforcing ribs. Through the provided first support frame, it is convenient to support and extend the water outlet pipe above the aquaculture pond; by welding the reinforcing ribs, the strength of the first support frame can be improved and it is not easy to deform and collapse.

[0020] Furthermore, the water inlet end of the pumping pipe is connected with an aquaculture anti-escape device. The aquaculture anti-escape device includes an anti-escape cover with a hollow cover body structure and a second support frame fixedly connected to the anti-escape cover. An inlet area is provided at the upper part of the anti-escape cover, and a plurality of inlet mesh holes communicating with the inner cavity of the anti-escape cover are opened in the inlet area; a connecting pipe communicating with the inner cavity of the anti-escape cover is provided on the side wall of the anti-escape cover, and the connecting pipe is connected to the water inlet end of the pumping pipe. By installing the aquaculture anti-escape device, it can not only prevent the aquaculture aquatic organisms from escaping, but also avoid the sludge below from blocking the water inlet end of the pumping pipe and affecting the pumping.

[0021] Furthermore, the pumping pipe is connected with a second check valve, which can prevent the water in the purification tank from flowing back into the aquaculture pond through the pumping pipe.

[0022] Furthermore, a drain pipe is provided at the bottom of the purification tank, and the drain pipe is connected with a second drain valve. When cleaning and maintenance are required, the second drain valve can be opened to drain the water inside the purification tank.

[0023] Compared with the prior art, the utility model provides a multifunctional water-pushing and water-circulating pond aquaculture system, which has the following beneficial effects:

[0024] The utility model can continuously pump the water body in the aquaculture pond to the purification tank at a high place through the pumping pipeline for centralized aeration and oxygenation, foam separation, ozone disinfection, dosing and other treatments. And the treated circulating water can utilize the gravitational potential energy of the water level difference to realize kinetic energy conversion through the water-pushing and water-circulating aeration and oxygenation device, forming a water-pushing water flow inclined upward at 45°, so as to flow back into the aquaculture pond again, and realize non-powered secondary air cutting and oxygenation. Since a variety of water treatment devices are integrally and centrally integrated through reasonable layout in the purification tank, it not only reduces the overall spatial distribution size of the aquaculture system, but also can automatically push water, circulate, aerate and oxygenate by gravity. One 1.5KW aerator can be reduced at the water spraying place, greatly reducing the aquaculture cost. The water-pushing and water-circulating can improve the oxygenation effect and the drug spreading rate.

[0025] Aiming at the problems and pain points in the traditional pond aquaculture process, the utility model changes the passive aquaculture situation of traditional pond static aquaculture, relying on the weather, and only relying on animal health products and drugs to solve the water quality of aquaculture water. It focuses on solving many problems brought by static aquaculture that cannot be solved by traditional pond aquaculture. The water-pushing and water-circulating pond aquaculture mode is adopted, providing a new idea and a new mode for the large-water-body pond circulating water aquaculture. Specifically, the multifunctional water-pushing and water-circulating pond aquaculture system of the utility model has the following functions:

[0026] (1) Pond circulating water aquaculture function: mainly solve the problem of treating pollution after pollution in traditional pond aquaculture. In the face of conventional large-scale aquaculture ponds (such as those less than 10 mu), the circulating treatment aquaculture water volume of one specification of the aquaculture system of the utility model can reach 66m 3 / h, and the daily treatment volume can reach 1584m 3 / day. Taking a 10-mu pond as an example, the aquaculture water can be circulated and treated once every 8 - 10 days. Calculated based on a 6-month aquaculture period, the total circulating treatment volume of aquaculture water in each production process is 285120m 3 aquaculture water, and the 10-mu pond can be circulated and treated more than 20 times. In the face of large-scale aquaculture ponds (such as those larger than 10 mu), the circulating treatment aquaculture water volume of another specification of the aquaculture system of the utility model can reach 90m 3 / h, and the daily treatment volume can reach 2160m 3 / day. Taking a 15-mu pond as an example, the aquaculture water can be circulated and treated once every 8 - 10 days. Calculated based on a 6-month aquaculture period, the total circulating treatment volume of aquaculture water in each production process is 388800m 3 aquaculture water, and the 15-mu pond can be circulated and treated more than 19 times. The utility model adopts the circulating water aquaculture mode, and achieves twice the result with half the effort through an active comprehensive treatment method at the source of the problem.

[0027] (2) Plug-in aeration and foam separation function: It mainly solves the problems of increasing dissolved oxygen in aquaculture water and separating water-soluble organic matter in real time, reducing and slowing down the generation amount of ammonia nitrogen and nitrite and the rate of harm to aquaculture pollution. The air volume of the high-pressure blower entering the purification equipment reaches more than 20 - 25 m 3 per hour. It can control the dissolved oxygen in aquaculture water to be above 4 - 6 mg / L, separate 100 - 150 kg / day of high-concentration water-soluble organic matter foam water per day, and can separate 18,000 - 27,000 kg of high-concentration water-soluble organic matter foam water during each aquaculture process. After adopting aeration and foam separation of water-soluble organic matter, the dosage of aquaculture protection products can be reduced by more than 40% - 50% during each aquaculture process. The saved medicine cost can be used to meet the electricity cost of the system to meet the operation electricity expenses of the system.

[0028] (3) Water-pushing and water-circulating aeration function: It mainly solves the problem of traditional pond static water fish farming. On the one hand, using a circulating water output of 66 m 3 / h, through jet propulsion to drive the water flow movement, continuously supplement the high-dissolved-oxygen aquaculture water, improve the water quality of pond aquaculture water, and effectively solve the problems of uneven fish size and polarization during the aquaculture process; on the other hand, through a circulating water volume of 66 cubic meters per hour, jet propulsion makes the aquaculture water in the pond flow, increases the movement of fish in the pond, improves the appetite of fish, increases the vitality of fish, improves the quality of fish, and solves the difficult problems that occur in traditional pond static water aquaculture. In addition, during feeding, the oxygen consumption of big fish increases greatly during the process of gathering and grabbing food in the feeding area, resulting in a sharp drop in the dissolved oxygen in the feeding area to about 1.5 - 2 mg / L after big fish eat. The ultra-low dissolved oxygen causes small fish unable to enter the feeding area to eat. After the utility model adopts the water-pushing and water-circulating aeration technology, continuous high-dissolved-oxygen circulating water is continuously supplemented, solving the serious oxygen deficiency problem in the feeding area. The uniformity of fish during the aquaculture process is greatly improved. During each aquaculture process, fish sorting can be reduced by 1 - 2 times, not only reducing the aquaculture cost, but also reducing the stress and harm to fish. Each aquaculture cycle can be shortened by about 30 days.

[0029] (4) Timed automatic dosing function: It mainly solves the problem of manually sprinkling aquaculture protection products and medicines during the traditional pond aquaculture process. The utility model realizes automatic dosing by adopting a timed automatic dosing method. The operation is simple and convenient. When dosing is required, pour the medicine into the dosing bucket and dilute it with water, adjust the required dosing concentration. The dosing concentration regulating valve can realize a concentration adjustment range of 50 - 300 times. In this way, the medicine is input into the outlet pipeline by the dosing pump and is sprayed into the aquaculture pond through the water-pushing and water-circulating aeration device to be evenly mixed with the aquaculture water to complete the automatic dosing work; the entire preparation process of automatic dosing is within about 10 minutes, which can reduce the labor intensity, improve the work efficiency by more than 10 times, and has the effect of uniform automatic dosing, solving the problems of fish stress reaction or poisoning caused by uneven manual sprinkling.

[0030] (5) Ozone sterilization and disinfection function: This mainly solves the problem of over-reliance on drugs in traditional pond farming. The utility model adopts safe and environmentally friendly ozone disinfection technology, which promotes food safety and the protection of the environment for green and healthy farming.

[0031] (6) Rotatable support base function: This mainly solves the problem of the convenience of installation and maintenance of the multi-functional water-pushing and water-circulating pond aquaculture system. Due to the rotatable function of the support base of the utility model, the installation and maintenance can be completed on the pond bank. After the system is installed or repaired, it can be rotated 90 degrees to the normal working position and locked, which is convenient for operation and improves work efficiency. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033] Figure 1 It is a schematic structural diagram of the present utility model;

[0034] Figure 2 It is a schematic diagram of water body flow;

[0035] Figure 3 It is a schematic diagram of the distribution of nano-aeration pipes;

[0036] Figure 4 It is a schematic diagram of the installation of the cement base and the support base;

[0037] Figure 5 It is a schematic diagram of using the first support frame to support the outlet water pipe and the water-pushing and water-circulating pipe;

[0038] Figure 6 It is a schematic diagram of ejecting and pushing water using the water-pushing and water-circulating pipe;

[0039] Figure 7 It is a schematic diagram of the installation of the aquaculture anti-escape device and the pumping pipe;

[0040] Figure 8 It is a three-dimensional structural schematic diagram of the aquaculture anti-escape device;

[0041] Figure 9 It is a schematic diagram of the installation of the upper support base and the lower support base;

[0042] Figure 10 It is a schematic diagram of the water spraying operation in the top view;

[0043] Figure 11 It is a schematic diagram for installation and maintenance after rotating 90 degrees.

[0044] Reference numerals: 1, purification tank; 11, water inlet; 12, water outlet; 13, water circulation device; 131, circulation pipeline; 132, circulation water pump; 133, circulation water outlet; 134, circulation water inlet; 14, enhanced drainage port; 15, drain pipe; 16, second drain valve; 2, pumping pipeline; 21, circulation pump; 22, anti-escape device for aquaculture; 221, anti-escape cover; 2211, water inlet mesh; 2212, connecting pipe; 222, second support frame; 2221, support rod; 23, second check valve; 3, plug-in nano-aeration device; 31, air pump; 32, air inlet pipe; 33, nano-aeration pipe; 4, foam discharge device; 41, collection cover; 411, conical section; 412, cylindrical section; 42, guide cover; 421, outlet section; 422, converging section; 43, foam discharge pipe; 44, foam collection bucket; 441, cover; 5, water outlet pipeline; 51, water-pushing and flow-creating aeration and oxygenation device; 511, water-pushing and flow-creating pipe; 512, water outlet hole; 52, timing automatic dosing device; 521, dosing bucket; 522, dosing concentration regulating valve; 523, dosing pipeline; 524, dosing pump; 525, water supply pipe; 526, dosing water supply valve; 527, first check valve; 528, first drain valve; 53, liquid level regulating valve; 6, ozone addition device; 61, ozone generator; 62, gas transmission pipeline; 63, gas input port; 7, liquid level automatic balancing device; 71, first vertical pipe; 72, second vertical pipe; 73, guide pipe; 8, control device; 9, aquaculture pond; 90, central rotating shaft 90; 91, cement base; 92, support base; 921, upper support base; 922, lower support base; 923, upper support column; 924, lower support column; 925, upper inner flange positioning plate; 926, lower inner flange positioning plate; 927, upper outer flange fixing plate; 928, lower outer flange fixing plate; 929, bolt and nut assembly; 93, first support frame; 931, reinforcing rib; 94, pond base. Specific embodiments

[0045] Next, the technical solutions of the present invention will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0046] Next, the present invention will be further described in detail through specific embodiments in combination with the drawings.

[0047] This embodiment provides a multifunctional water-pushing and flow-creating pond recirculating aquaculture system, which adopts the water-pushing and flow-creating pond recirculating aquaculture mode, focuses on solving many problems brought by static water aquaculture that cannot be solved by traditional pond aquaculture, and provides new ideas and new models for large-water-body pond recirculating aquaculture. Specifically, please refer to Figures 1 to 11 , the multifunctional water-pushing and flow-creating pond recirculating aquaculture system includes a purification tank 1 and a control device 8. The tank wall of the purification tank 1 is provided with a water inlet 11 and a water outlet 12. The water inlet 11 is connected to a pumping pipeline 2 equipped with a circulating water pump 21, and the water inlet end of the pumping pipeline 2 extends into the aquaculture pond 9; the purification tank 1 is connected to an inserted nano-aeration device 3, and the top of the purification tank 1 is provided with a foam discharge device 4; the water outlet 12 is connected to a water outlet pipeline 5, and a water-pushing and flow-creating aeration and oxygenation device 51 located above the aquaculture pond 9 is provided at one end of the water outlet pipeline 5 away from the purification tank 1. The position height of the water-pushing and flow-creating aeration and oxygenation device 51 is lower than the position height of the purification tank 1; the control device 8 is respectively connected to the circulating water pump 21 and the inserted nano-aeration device 3. In this way, the water body in the aquaculture pond can be continuously pumped to the purification tank at a high place through the pumping pipeline for centralized aeration and oxygenation, foam separation, ozone disinfection, drug addition and other treatments, and the treated circulating water can utilize the gravitational potential energy of the water level difference to realize kinetic energy conversion through the water-pushing and flow-creating aeration and oxygenation device, forming an inclined upward water-pushing flow, so as to flow back into the aquaculture pond again as aquaculture water and realize non-powered secondary air cutting for oxygenation; since a variety of water treatment equipment is integrally and centrally integrated through reasonable layout into the purification tank, it not only reduces the overall spatial distribution size of the aquaculture system, but also can automatically push water, create flow, aerate and oxygenate through gravity, and one 1.5KW aerator can be reduced at the water spraying place, greatly reducing the aquaculture cost. The water-pushing and flow-creating can improve the oxygenation effect and the drug throwing diffusion rate.

[0048] In some specific embodiments, refer to Figure 1 , Figure 5 and Figure 6 , the water-pushing and flow-creating aeration and oxygenation device 51 includes a horizontally distributed water-pushing and flow-creating pipe 511. The middle part of the water-pushing and flow-creating pipe 511 is communicated with the water outlet end of the water outlet pipeline 5, and a plurality of water outlet holes 512 that spray water obliquely upward are opened on the pipe wall of the water-pushing and flow-creating pipe 511. Under the action of gravity, the water in the purification tank flows out through the water outlet pipeline and forms an inclined upward water-pushing flow at the water outlet holes. After the water-pushing flow falls into the aquaculture pond, a large amount of air can be brought in, so as to achieve the purpose of non-powered secondary automatic oxygenation, increase the oxygenation coverage area, and improve the oxygenation effect and the drug throwing diffusion rate.

[0049] Preferably, as Figure 6As shown, the included angle between the central axis of the water outlet hole 512 and the horizontal plane is 45 degrees. In this way, the water-pushing water flow can reach more than 2.5 meters, which can increase the spraying travel of the water-pushing water flow and make the water-pushing water flow diverge more at the water inlet, improving the oxygenation effect, with a wider oxygenation coverage area, facilitating the diffusion of the thrown medicine and enabling the medicine to be evenly mixed with the aquaculture water after entering the water, and can reduce the harm to fish caused by excessive concentration due to uneven mixing.

[0050] Reference Figure 5 , preferably, the water outlet hole 512 is a narrow strip-shaped through hole, which can increase the lateral width of the water-pushing water flow and the area of contact with the air, thereby improving the oxygenation effect and the drug diffusion rate. Specifically, as an example, the size of the water outlet hole 512 is 150 mm in length and 1.8 mm in width. The water-pushing flow pipe 511 is a hollow cylindrical pipe, and there are ten water outlet holes 512 on the water-pushing flow pipe 511, which are symmetrically distributed on the pipe wall of the water-pushing flow pipe 511.

[0051] In some specific embodiments, reference Figures 1 to 3 , the plug-in nano-aeration device 3 includes an air pump 31, an air inlet pipe 32 and a plurality of nano-aeration pipes 33 distributed in parallel. The air outlet end of the air pump 31 is connected to one end of the air inlet pipe 32, and the other end of the air inlet pipe 32 is respectively connected to one end of each nano-aeration pipe 33. The other end of each nano-aeration pipe 33 is inserted into the inner cavity of the purification tank 1, and the nano-aeration pipe 33 has an aeration port at the end located inside the purification tank 1. By starting the air pump, the water in the purification tank can be continuously aerated and oxygenated, and the bubbles generated by aeration can reach the nano level, so as to better remove the water-soluble organic matter in the water. Specifically, as Figure 3 shown, as an example, there are nine nano-aeration pipes 33 distributed in parallel. A plurality of circular aeration ports are formed on the side wall of each nano-aeration pipe 33. It should be noted that in some other embodiments, the number of nano-aeration pipes and aeration ports can also be flexibly adjusted according to the actual size specifications, and is not limited to the above number settings. The air inlet pipe 32 has an inverted U-shaped section, which can prevent the water inside the purification tank 1 from flowing back to the air pump 31.

[0052] In some specific embodiments, reference Figure 1 and Figure 2 , the foam discharging device 4 includes a collecting cover 41 located at the top of the purification tank 1 and a diversion cover 42 communicated with the top of the collecting cover 41. The diversion cover 42 is connected with a foam discharging pipe 43, and the foam discharging pipe 43 is connected with a foam collecting bucket 44 at the end far away from the diversion cover 42. In this way, the scum foam formed by the aeration treatment can be converged by the collecting cover after floating up, and finally led by the diversion cover and discharged into the foam discharging pipe, so as to be collected in the foam collecting bucket.

[0053] Specifically, asFigure 2 As shown, the collection hood 41 includes a conical section 411 at the lower part and a cylindrical section 412 at the upper part. The diversion hood 42 includes a lead-out section 421 connected to the cylindrical section 412 and a converging section 422 located below the lead-out section 421. The lead-out section 421 has a lead-out inclined surface that is inclined downward and outward to quickly discharge the scum foam. The foam collection bucket 44 is provided with a cover 441 for opening to empty the internal foam.

[0054] In this embodiment, referring to Figure 1 and Figure 2 , the purification tank 1 is connected with an ozone addition device 6. Specifically, the ozone addition device 6 includes an ozone generator 61, a gas delivery pipeline 62, and a gas input port 63 provided on the tank wall of the purification tank 1. The two ends of the gas delivery pipeline 62 are respectively connected to the ozone generator 61 and the gas input port 63. By starting the ozone generator, ozone can be continuously introduced into the aquaculture water in the purification tank for ozone sterilization and disinfection treatment, thereby improving the water quality. After ozone treatment, the ammonia nitrogen removal rate of the aquaculture water can reach more than 30% - 40%, and the nitrite removal rate can reach more than 50% - 60%. The gas delivery pipeline has an inverted U-shaped section to prevent the aquaculture water inside the purification tank 1 from flowing back to the ozone generator.

[0055] As a preferred embodiment, the ozone generator 61 is selected as an oxygen source ozone integrated machine. The pure oxygen output end and the ozone output end of the oxygen source ozone integrated machine are respectively connected to the gas delivery pipeline 62 through valves. In this way, the oxygen source ozone integrated machine can choose to introduce ozone or pure oxygen into the purification tank 1. When choosing to introduce pure oxygen, the dissolved oxygen of the aquaculture water can be increased, the aquaculture density can be improved, the yield can be increased, and the economic benefit can be improved; when choosing to introduce ozone, ozone can be used to sterilize and disinfect the aquaculture water, prevent diseases from occurring during the aquaculture process, improve the success rate of aquaculture, and achieve antibiotic-free and healthy aquaculture.

[0056] Referring to Figure 1 and Figure 2 , in some embodiments, as an improvement, the purification tank 1 is connected with a water circulation device 13. Specifically, the water circulation device 13 includes a circulation pipeline 131, a circulation water pump 132, and a circulation water outlet 133 and a circulation water inlet 134 provided on the tank wall of the purification tank 1. The circulation water pump 132 is connected in series in the circulation pipeline 131, and the two ends of the circulation pipeline 131 are respectively connected to the circulation water outlet 133 and the circulation water inlet 134. By starting the circulation water pump, the water body in the purification tank can be pumped out and then re-flowed back into the interior of the purification tank, realizing the cyclic flow of the water body at the purification tank to promote and improve the effects of ozone disinfection and aeration oxygenation treatment.

[0057] Preferably, a Venturi gas adding pipe communicating with the gas input port 63 is connected to the circulating water inlet 134, and pure oxygen or ozone can be adsorbed and introduced into the purification tank 1 by using the Venturi effect.

[0058] Reference Figure 1 and Figure 2 , in some embodiments, as an improvement, the purification tank 1 is connected with a liquid level automatic balancing device 7. Specifically, the liquid level automatic balancing device 7 includes a first vertical pipe 71 and a second vertical pipe 72 which are vertically and parallelly distributed. The upper ends of the first vertical pipe 71 and the second vertical pipe 72 are both open. A diversion pipe 73 is communicated between the first vertical pipe 71 and the second vertical pipe 72. A strengthened drain port 14 is provided on the tank wall of the purification tank 1. The lower end of the first vertical pipe 71 is communicated with the strengthened drain port 14. The lower end of the second vertical pipe 72 is communicated with the water outlet pipe 5. The position height of the diversion pipe 73 is higher than the position height of the water outlet 12. During the water circulation process in the daytime, due to the peak electricity consumption period, the operating power of the circulating water pump is relatively small compared with normal use, resulting in slower pumping, and the water level in the purification tank is not very high. The water in the purification tank can be smoothly discharged through the water outlet. However, when the electricity consumption is at a valley at night, the operating power of the circulating water pump at this time is increased compared with normal use, resulting in faster pumping, and the water level in the purification tank will also increase accordingly. In order to prevent the water body inside the purification tank from surging upward into the diversion cover, a liquid level automatic balancing device is provided, which can accelerate drainage. Specifically, the first vertical pipe 71, the second vertical pipe 72 and the diversion pipe 73 together form a communicating vessel in an H shape. Since the position height of the diversion pipe is higher than the position height of the water outlet, when the water level inside the purification tank rises to a certain height, the water inside the purification tank can automatically flow through the strengthened drain port, the first vertical pipe, the diversion pipe and the second vertical pipe in sequence and be discharged into the water outlet pipe. The diameter of the water outlet can be set according to the size of the purification tank and the operating power of the circulating water pump. Preferably, the diameter of the strengthened drain port 14 is larger than the diameter of the water outlet 12. In this way, the rapid drainage effect and the ability to balance the water level of the liquid level automatic balancing device can be increased. In addition, a liquid level regulating valve 53 can be further installed at the water outlet 12, and the working water level height inside the purification tank 1 can be adjusted by manually adjusting the liquid level regulating valve 53.

[0059] In this embodiment, as Figure 1 and Figure 2As shown, the outlet pipe 5 is connected with a timed automatic dosing device 52. Specifically, the timed automatic dosing device 52 includes a dosing barrel 521, a dosing pump 524, a dosing concentration regulating valve 522 and a dosing pipe 523. The water inlet of the dosing pump 524 is connected to the bottom of the dosing barrel 521, the input end of the dosing concentration regulating valve 522 is connected to the water outlet of the dosing pump 524, the output end of the dosing concentration regulating valve 522 is connected to one end of the dosing pipe 523, and the other end of the dosing pipe 523 is connected to the outlet pipe 5. By setting the dosing pump, the medicine in the dosing barrel can be added to the outlet pipe through the dosing pipe, so as to be mixed with the water returned to the breeding pond; by adjusting the dosing concentration regulating valve with a scale, the dosing concentration can be adjusted within the range of 50 to 300 times, which can meet the requirements of using this ratio for different medicines. During the non-dosing period, the dosing barrel is not loaded with liquid medicine. When temporary dosing is required, liquid medicine is added to the dosing barrel to ensure that the medicine will not become ineffective and wasted. As an example, the medicine stored in the dosing barrel can be an anti-inflammatory agent for aquaculture. In order to avoid the backflow of aquaculture water during dosing, the dosing pipeline 523 is connected to a first check valve 527. In addition, the dosing barrel 521 is also connected to the bottom of the purification tank 1 through a water adding pipe 525 equipped with a dosing water supply valve 526, so as to facilitate the addition of water to adjust the ratio. A first drain valve 528 is provided at the bottom of the dosing barrel 521.

[0060] refer to Figures 1 to 4 , Figures 9 to 11 In this embodiment, a support seat 92 and a cement base 91 are provided below the purification tank 1. The cement base 91 is cast and fixed on the pond foundation. The support seat 92 includes an upper support seat 921 and a lower support seat 922 connected by splicing. The top of the upper support seat 921 is connected to the bottom of the purification tank 1, and the bottom of the lower support seat 922 is connected to the cement base 91. The upper support seat 921 and the lower support seat 922 are rotatably connected, and a locking structure is provided between the upper support seat 921 and the lower support seat 922. By casting to form a cement base, and installing a support seat on the cement base to suspend and fix the purification tank, on the one hand, the purification tank can have a certain height so that the circulating pumping water can be converted into gravitational potential energy. On the other hand, the support seat can also be used to install and fix the water-pushing flow-making aeration and oxygenation device, the dosing barrel and the control device. In addition, the support seat is installed by splicing, so that the upper support seat can be assembled with the purification tank in advance, and the lower support seat is assembled with the cement base, and finally the upper support seat and the lower support seat are locked and connected by a locking structure such as a bolt and nut assembly, so that construction is convenient. At the same time, the upper support seat 921 and the lower support seat 922 are rotatably connected. During installation and maintenance, the water-pushing flow-making aeration and oxygenation device can be rotated 90 degrees to the pond base. After installation and maintenance, it can be rotated 90 degrees in the opposite direction to the pond and locked and fixed, which is more convenient.

[0061] Specifically, refer toFigure 4 and Figure 9 , both the upper support base 921 and the lower support base 922 are steel structure components. The upper support base 921 has an upper support column 923 vertically downward, and the lower support base 922 has a lower support column 924 vertically upward. A central rotating shaft 90 is rotatably connected between the upper support column 923 and the lower support column 924. Two lower inner flange positioning discs 926 are fixed to the upper part of the lower support column 924, and the lower part of the central rotating shaft 90 is fixedly connected to the lower support column 924 through the two lower inner flange positioning discs 926. Two upper inner flange positioning discs 925 are fixed to the lower part of the upper support column 923. Both of the two upper inner flange positioning discs 925 have mounting holes inserted with the upper part of the central rotating shaft 90, and the upper part of the central rotating shaft 90 is rotatably connected to the upper support column 923 through the two upper inner flange positioning discs 925. The locking structure includes an upper outer flange fixing disc 927 fixedly connected to the lower part of the upper support column 923, a lower outer flange fixing disc 928 fixedly connected to the upper part of the lower support column 924, and a plurality of bolt and nut assemblies 929 connected between the upper outer flange fixing disc 927 and the lower outer flange fixing disc 928. The upper support column 923, the lower support column 924 and the central rotating shaft 90 form a rotatable steel structure frame column. As Figure 10 shown, during normal operation, it can be locked by connecting the bolt and nut assemblies. When installing or in need of maintenance, as Figure 11 shown, the bolt and nut assemblies 929 can be unlocked, and the upper support column 923 can be pushed to rotate 90°, so that each component such as the water-pushing and current-creating aeration and oxygenation device fixed on the upper support base 921 rotates to the pond base, facilitating equipment installation and maintenance. After the system is assembled and debugged, then rotate 90° to make the water-pushing and current-creating aeration and oxygenation device extend to the working position above the aquaculture pond, and it can enter the normal working state.

[0062] Refer to Figure 1 and Figure 5 , in some embodiments, the support base 92 is connected with an L-shaped first support frame 93 for supporting the water outlet pipe 5. The first support frame 93 is connected with inclined reinforcing ribs 931. The horizontal section of the first support frame 93 extends above the aquaculture pond. By arranging the first support frame, it is convenient to support the water outlet pipe and extend it above the aquaculture pond; by welding the reinforcing ribs, the strength of the first support frame can be improved and it is not easy to deform and collapse.

[0063] In this embodiment, the control device 8 can adopt a PLC controller with programming function. Specifically, as Figure 1 shown, the control device 8 is fixed on the support base 92 through an electric box and is located below the purification tank 1 to avoid being exposed to the sun and rain.

[0064] Refer to Figure 1 , Figure 7 andFigure 8 , in some embodiments, as an improvement, a breeding escape prevention device 22 is connected to the water inlet end of the pumping pipeline 2. Among them, the breeding escape prevention device 22 includes an escape prevention cover 221 with a hollow cover body structure and a second support frame 222 fixedly connected to the escape prevention cover 221. An inlet area is provided in the upper part of the escape prevention cover 221, and a plurality of inlet mesh holes 2211 communicating with the inner cavity of the escape prevention cover 221 are opened in the inlet area; a connecting pipe 2212 communicating with the inner cavity of the escape prevention cover is provided on the side wall of the escape prevention cover 221, and the connecting pipe 2212 is connected to the water inlet end of the pumping pipeline 2. By installing the breeding escape prevention device, it can not only prevent the escape of breeding aquatic organisms, but also avoid the blockage of the water inlet end of the pumping pipeline by the sludge below, thus affecting the pumping.

[0065] As Figure 7 and Figure 8 shown, specifically, the escape prevention cover 221 is in a cylindrical shape, the central axis of the escape prevention cover 221 is horizontally distributed, and the inlet area is located in the upper part of the circumferential side wall of the escape prevention cover. The inlet mesh holes 2211 are distributed in multiple rows, and the adjacent two rows of inlet mesh holes 2211 are staggered, which can better prevent the escape of breeding aquatic organisms and has a better anti-blocking effect. Among them, the inlet mesh holes 2211 are long strip-shaped through holes. Compared with circular through holes, due to having more water inlet space, it is less likely to be blocked by aquatic organisms such as snails or other sundries. Preferably, the width of the inlet mesh hole is 2 - 4 mm, and the length of the inlet mesh hole is 50 - 80 mm. In this way, it can better combine the escape prevention effect and higher pumping efficiency. As an example, the width of the inlet mesh hole can be set to 3 mm and the length can be set to 60 mm.

[0066] In some specific embodiments, as Figure 8 shown, there are two second support frames 222, and both of the two second support frames 222 are in an inverted V shape and are respectively located at both ends of the escape prevention cover 221. The second support frame 222 is formed by splicing two symmetrically inclined support rods 2221, and the outer wall of the support rod 2221 is fixedly connected to the outer wall of the escape prevention cover 221. In this way, the bottom of the support rod can be used to pierce into the sludge at the bottom of the pool, and the escape prevention cover can be supported more firmly. As an example, the escape prevention cover 221 can be made of stainless steel thin plate, and the connecting pipe 2212 and the support rod 2221 can be made of stainless steel pipe. In this way, each metal component can be processed by welding to form, which is convenient for manufacturing.

[0067] In some embodiments, as Figure 1 shown, a second check valve 23 is connected to the pumping pipeline 2, which can prevent the water in the purification tank from flowing back to the breeding pool through the pumping pipeline.

[0068] In some embodiments, as Figure 1 and Figure 2As shown, a drain pipe 15 is provided at the bottom of the purification tank 1, and a second drain valve 16 is connected to the drain pipe 15. When cleaning and maintenance are required, the water inside the purification tank can be drained by opening the second drain valve.

[0069] Reference Figures 1 to 11 , the operation process of the multifunctional water-pushing and water-circulating pond recirculating aquaculture system of the present utility model is as follows:

[0070] Start the circulation water pump 21, and the aquaculture water in the aquaculture pond 9 is extracted through the water extraction pipeline 2 from the water inlet 11 at the aquaculture anti-escape device and enters the purification tank 1;

[0071] The water circulation device 13 continuously circulates and pumps the aquaculture water extracted into the purification tank 1 to promote the circulation of the aquaculture water in the purification tank 1. The inserted nano-aeration device 3 continuously aerates and oxygenates the aquaculture water in the purification tank 1 and removes impurities in the water. The ozone addition device 6 injects ozone into the aquaculture water in the purification tank 1 for continuous ozone sterilization and disinfection treatment;

[0072] The scum foam formed by aeration floats up and is discharged through the collection cover 41 and the diversion cover 42 at the top of the purification tank 1, and thus flows into the foam collection bucket 44 for collection;

[0073] The aquaculture water after aeration, oxygenation, foam separation and disinfection treatment automatically flows out from the water outlet 12 on the side wall of the purification tank 1 under the action of the water level difference gravity and enters the water outlet pipeline 5. An appropriate amount of medicine can be added to the water outlet pipeline 5 through the timing automatic dosing device 52. Finally, the aquaculture water is sprayed obliquely upward at a 45-degree angle from the water outlet holes 512 on the water-pushing and water-circulating pipe 511 at the end of the water outlet pipeline 5 and flows back into the aquaculture pond to achieve water-pushing oxygenation and improve the drug spraying diffusion rate.

[0074] In addition, when the electricity consumption is at a valley at night, the operating power of the circulation water pump 21 increases compared with normal use at this time, resulting in faster water extraction, and the water level in the purification tank 1 will also increase accordingly. Due to the setting of a liquid level automatic balance device 7, when the water level inside the purification tank 1 rises to the height where the diversion pipe 73 is located, under the communicating vessel effect, the water inside the purification tank 1 can also automatically flow through the enhanced drain port 14, the first vertical pipe 71, the diversion pipe 73 and the second vertical pipe 72 in sequence and be discharged into the water outlet pipeline 5, thereby accelerating drainage and balancing the water level to ensure stable operation.

[0075] The multifunctional water-pushing and water-circulating pond recirculating aquaculture system of the present utility model can well perform various treatments such as circulating purification, disinfection, and dosing of the aquaculture water body, and is suitable for the treatment of aquaculture water bodies such as fish, shrimps, and snails.

[0076] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

[0077] In addition, it should be understood that although this specification is described in accordance with the embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multifunctional water-pushing pond circulating water aquaculture system, comprising a purification tank and a control device, characterized in that: The tank wall of the purification tank is provided with a water inlet and a water outlet, the water inlet is connected to a pumping pipe installed with a circulating water pump, and the water inlet end of the pumping pipe extends into the breeding pond; the purification tank is connected to an inserted nano aeration device, and a foam discharge device is provided on the top of the purification tank; the water outlet is connected to an outlet pipe, and the outlet pipe is provided with a water-pushing flow-making aeration and oxygenation device located above the breeding pond at one end away from the purification tank, and the position height of the water-pushing flow-making aeration and oxygenation device is lower than the position height of the purification tank; the control device is respectively connected to the circulating water pump and the inserted nano aeration device.

2. The multifunctional water-pushing and flow-generating pond circulating water aquaculture system according to claim 1 is characterized in that: The water-pushing flow-making aeration and oxygenation device comprises a horizontally distributed water-pushing flow-making pipe, the middle part of which is connected to the water outlet end of the water outlet pipe, and the pipe wall of the water-pushing flow-making pipe is provided with a plurality of water outlet holes which spray water obliquely upward.

3. The multifunctional water-pushing and flow-generating pond circulating water aquaculture system according to claim 1 is characterized in that: The insertable nano aeration device comprises an air pump, an air inlet pipe and a plurality of nano aeration tubes distributed in parallel, the air outlet end of the air pump is connected to one end of the air inlet pipe, the other end of the air inlet pipe is respectively connected to one end of each nano aeration tube, the other end of each nano aeration tube is inserted into the inner cavity of the purification tank, and the nano aeration tube has an aeration port at one end located inside the purification tank.

4. The multifunctional water-pushing and flow-generating pond circulating water aquaculture system according to claim 1 is characterized in that: The foam discharge device comprises a collection cover located at the top of the purification tank and a flow guide cover connected to the top of the collection cover, the flow guide cover is connected to a bubble discharge pipe, and the bubble discharge pipe is connected to a foam collection barrel at one end away from the flow guide cover.

5. The multifunctional water-pushing and flow-generating pond circulating water aquaculture system according to claim 1 is characterized in that: The purification tank is connected to an ozone adding device, which includes an ozone generator, a gas delivery pipeline and a gas input port arranged on the tank wall of the purification tank, and the two ends of the gas delivery pipeline are respectively connected to the ozone generator and the gas input port; or, the purification tank is connected to an ozone adding device, which includes an oxygen source ozone integrated machine, a gas delivery pipeline and a gas input port arranged on the tank wall of the purification tank, the pure oxygen output end and the ozone output end of the oxygen source ozone integrated machine are respectively connected to one end of the gas delivery pipeline through a valve, and the other end of the gas delivery pipeline is connected to the gas input port.

6. The multifunctional water-pushing and flow-generating pond circulating water aquaculture system according to claim 5 is characterized in that: The purification tank is connected to a water circulation device, which includes a circulation pipeline, a circulation water pump, and a circulation water outlet and a circulation water inlet arranged on the tank wall of the purification tank. The circulation water pump is connected in series to the circulation pipeline, and the two ends of the circulation pipeline are respectively connected to the circulation water outlet and the circulation water inlet.

7. The multifunctional water-pushing and flow-generating pond circulating water aquaculture system according to claim 1 is characterized in that: The purification tank is connected to an automatic liquid level balancing device, which includes a first vertical pipe and a second vertical pipe distributed vertically and in parallel, the upper ends of the first vertical pipe and the second vertical pipe are both open, a guide pipe is connected between the first vertical pipe and the second vertical pipe, a reinforced drain port is provided on the tank wall of the purification tank, the lower end of the first vertical pipe is connected to the reinforced drain port, the lower end of the second vertical pipe is connected to the water outlet pipe, and the guide pipe is located at a higher height than the outlet.

8. The multifunctional water-pushing and flow-generating pond circulating water aquaculture system according to claim 7 is characterized in that: The water outlet pipe is connected to a timed automatic dosing device, which includes a dosing barrel, a dosing pump, a dosing concentration regulating valve and a dosing pipe. The water inlet of the dosing pump is connected to the bottom of the dosing barrel, the input end of the dosing concentration regulating valve is connected to the water outlet of the dosing pump, the output end of the dosing concentration regulating valve is connected to one end of the dosing pipe, and the other end of the dosing pipe is connected to the water outlet pipe.

9. The multifunctional water-pushing and flow-generating pond circulating water aquaculture system according to claim 1 is characterized in that: A support seat and a cement base are provided under the purification tank, and the cement base is cast and fixed on the pond foundation. The support seat includes an upper support seat and a lower support seat that are spliced ​​and connected. The top of the upper support seat is connected to the bottom of the purification tank, and the bottom of the lower support seat is connected to the cement base. The upper support seat and the lower support seat are rotatably connected and a locking structure is provided between the upper support seat and the lower support seat.

10. The multifunctional water-pushing and flow-generating pond circulating aquaculture system according to any one of claims 1 to 9, characterized in that: The water inlet end of the water pumping pipe is connected to an aquaculture anti-escape device, which includes an anti-escape cover with a hollow cover structure and a second support frame fixedly connected to the anti-escape cover. The upper part of the anti-escape cover is provided with a water inlet area, and the water inlet area is provided with a plurality of water inlet mesh holes connected to the inner cavity of the anti-escape cover; the side wall of the anti-escape cover is provided with a connecting pipe connected to the inner cavity of the anti-escape cover, and the connecting pipe is connected to the water inlet end of the water pumping pipe.

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