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

Abstract

The invention discloses a multifunctional water-pushing flow-making pond recirculating aquaculture system and a using method.The multifunctional water-pushing flow-making pond recirculating aquaculture system comprises a purification tank and a control device, a water inlet and a water outlet are formed in the tank wall of the purification tank, and the water inlet is connected with a water pumping pipeline provided with a circulating water pump; the water inlet end of the water pumping pipeline extends into the culture 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. Various water treatment devices are integrated into the purification tank in a centralized mode through reasonable layout, the overall space distribution size of the breeding system is reduced, water pushing and flow making for aeration and oxygenation can be automatically achieved through the gravity effect, the breeding 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 invention relates to the technical field of pond aquaculture water circulation treatment, and in particular to a multifunctional water-pushing and flow-making pond circulation water aquaculture system and a use method thereof. Background Art

[0002] Traditional pond farming has been used for many years, and there is always a passive farming situation of first pollution and then governance in the farming process. In the traditional pond farming process, from the breeding of seedlings to the harvesting of fish, the residual bait produced by the fed feed and the excrement produced after the fish digestion and absorption are all deposited in the breeding pond. The residual bait and excrement are converted into water-soluble organic matter after being soaked in the breeding water. Under the influence of temperature and time, they are further converted into harmful substances such as ammonia nitrogen and nitrite, which leads to the massive reproduction and growth of various bacteria and viruses, and is one of the main causes of the frequent occurrence of various fish diseases. In order to alleviate the vicious cycle of aquaculture water quality, traditional pond farming often adopts continuous water changes, medication and various biological preparations to regulate water quality to ensure the safety of aquaculture organisms. In the breeding process of several months, the water quality conditioning operation is repeated continuously, which not only increases various risks in the breeding process, but also restricts the breeding density and affects harmless and healthy breeding. Therefore, the traditional pond farming model has problems such as low yield, many diseases, poor benefits and high pollution.

[0003] Over the years, pond aquaculture has basically remained unchanged using the traditional model, which is mainly reflected in the following aspects: (1) Traditional pond aquaculture adopts a passive aquaculture model of first polluting and then treating; (2) The aquaculture water lacks circulation and fluidity, and is static water aquaculture; (3) The problem of uneven fish size and polarization in the traditional pond aquaculture process has not changed; (4) The traditional pond aquaculture process relies on the manual spraying of animal health products and medicines; (5) The problems of traditional pond aquaculture relying on the weather, low technological content, poor risk resistance, and poor economic benefits have not changed.

[0004] Therefore, in order to address the problems and pain points that arise in traditional pond farming, it is necessary to innovate new pond farming models, new processes and new technologies. Summary of the invention

[0005] The present invention aims at the problems and pain points in the traditional pond aquaculture process, starts from the source of the aquaculture problems, changes the situation of passive aquaculture in traditional ponds, such as static water aquaculture, pollution first and then treatment, relying on the weather, the water quality of aquaculture water is only solved by animal protection products and drugs, the industry has low technological content and poor economic benefits, and provides a multifunctional water-pushing and flow-making pond circulating water aquaculture system and a use method. The water-pushing and flow-making pond circulating water aquaculture mode is adopted, and an overhead purification tank is set up, and the water in the aquaculture pond can be continuously pumped to the purification tank at a height for aeration and aeration by using a pumping pipeline. Oxygen, foam separation, ozone disinfection, drug addition and other treatments are carried out, and the treated circulating water can use the water level difference gravity potential energy to realize kinetic energy conversion through the water-pushing flow aeration and oxygenation device to form an inclined upward water-pushing flow, which will flow back to the breeding pond again and realize unpowered secondary air cutting and oxygenation, which not only reduces the overall spatial distribution size of the breeding system, but also can automatically push water to create flow and increase oxygen through gravity. A 1.5KW aerator can be reduced at the water spraying point. Pushing water to create flow can improve the oxygenation effect and the diffusion rate of the drug throwing, which well solves the problems mentioned in the above-mentioned prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] In the first aspect, the present invention provides a multifunctional water-pushing flow-making pond circulating water aquaculture system, comprising a purification tank and a control device, wherein 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 aquaculture 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 aquaculture pond at an 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.

[0008] Furthermore, 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 that spray water obliquely upward. Under the action of gravity, the water in the purification tank flows out through the water outlet pipe, and forms a water-pushing flow that sprays obliquely upward at the water outlet hole. After falling into the breeding pond, the water-pushing flow can bring in a large amount of air, thereby achieving the purpose of unpowered secondary automatic oxygenation, and increasing the oxygenation coverage, improving the oxygenation effect and the diffusion rate of the drug throwing.

[0009] Preferably, the 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 ejection stroke of the water-pushing flow and make the water-pushing flow more divergent at the water entry point, improve the oxygenation effect, and increase the oxygenation coverage area, which is conducive to the diffusion of the drug and the uniform mixing of the drug with the aquaculture water after entering the water, and can reduce the harm to the fish caused by excessive concentration due to uneven mixing.

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

[0011] Furthermore, the insertable nano-aeration device includes an air pump, an air inlet pipe, and a plurality of nano-aeration tubes distributed in parallel, wherein the air outlet 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 tube, and 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. By starting the air pump, the water in the purification tank can be continuously aerated and oxygenated, and water-soluble organic matter in the water can be removed at the same time.

[0012] Furthermore, the foam discharge device includes a collection hood located at the top of the purification tank and a flow guide hood connected to the top of the collection hood, the flow guide hood is connected to a bubble discharge pipe, and the bubble discharge pipe is connected to a foam collection bucket at one end away from the flow guide hood. In this way, the scum foam formed by aeration treatment can be collected by the collection hood after floating up, and finally drained by the flow guide hood into the bubble discharge pipe, so as to be collected in the foam collection bucket.

[0013] Furthermore, 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. By starting the ozone generator, ozone can be continuously introduced into the aquaculture water in the purification tank to perform ozone sterilization and disinfection treatment, thereby improving the water quality.

[0014] Alternatively, 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, and 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. 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 to a water circulation device, which includes a circulation pipeline, a circulation pump, and a circulation outlet and a circulation inlet arranged on the tank wall of the purification tank. The circulation pump is connected in series to the circulation pipeline, and the two ends of the circulation pipeline are respectively connected to the circulation outlet and the circulation inlet. By starting the circulation pump, the water in the purification tank can be pumped out and reflowed into the purification tank, so that the water forms a circulation flow at the purification tank, so as to promote and improve the effect of ozone disinfection and aeration oxygenation treatment.

[0016] Further, the purification tank is connected with an automatic liquid level balancing device, which includes a first vertical pipe and a second vertical pipe distributed vertically and parallelly, the upper end of the first vertical pipe and the upper end of the second vertical pipe are both open, a guide pipe is connected between the first vertical pipe and the second vertical pipe, the tank wall of the purification tank is provided with a reinforced drain port, 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 outlet pipe, and the position height of the guide pipe is higher than the position height of the outlet. During the water circulation process during the day, due to the peak of electricity consumption, the operating power of the circulating water pump is smaller than that of normal use, resulting in slower pumping, the water level in the purification tank is not very high, and the water in the purification tank can be discharged smoothly through the outlet; however, when the electricity consumption is low 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 inside the purification tank from flowing upward into the guide cover, an automatic liquid level balancing device is set to speed up drainage. Specifically, the first vertical pipe, the second vertical pipe and the guide pipe together form an H-shaped communicating vessel. Since the guide pipe is located at a higher height than the water outlet, when the water level inside the purification tank rises to a certain height, the water inside the purification tank can also flow through the first vertical pipe, the guide pipe and the second vertical pipe in sequence through the enhanced drainage port 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 ability to balance the water level of the liquid level automatic balancing device can be increased.

[0017] Furthermore, the outlet pipe is connected with 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 outlet pipe. 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.

[0018] Furthermore, a support seat and a cement base are provided below the purification tank, and the cement base is cast and fixed on the pond base. The support seat includes an upper support seat and a lower support seat connected by splicing, 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. The cement base is formed by casting, and the support seat is installed 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 adopts a splicing installation method, 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. Finally, the upper support seat and the lower support seat can be locked and connected using locking structures such as bolt and nut assemblies, so that construction is convenient. At the same time, the upper support seat and the lower support seat 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 into the pond and locked and fixed, which is more convenient.

[0019] Furthermore, the support seat is connected to an L-shaped first support frame for supporting the water outlet pipe, and the first support frame is connected to inclined reinforcement ribs. The first support frame is provided to facilitate the support and extension of the water outlet pipe to the top of the breeding pond; the strength of the first support frame can be improved by welding the reinforcement ribs, and it is not easy to deform and collapse.

[0020] Furthermore, the water inlet end of the water pumping pipe is connected with a breeding anti-escape device, which includes an anti-escape cover of a hollow cover structure and a second support frame fixedly connected to the anti-escape cover, and 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. By adding the breeding anti-escape device, it is possible to prevent the aquatic organisms from escaping and to prevent the silt below from blocking the water inlet end of the water pumping pipe and affecting the water pumping.

[0021] Furthermore, the pumping pipe is connected to a second check valve to prevent the water in the purification tank from flowing back into the breeding 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 to 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] In a second aspect, the present invention also provides a method for using a multifunctional water-pushing flow pond circulating water aquaculture system, comprising the following steps:

[0024] Start the circulating water pump, and the aquaculture water in the aquaculture pond is pumped into the purification tank through the water inlet through the pumping pipe;

[0025] The aquaculture water extracted and put into the purification tank circulates, the inserted nano-aeration device continuously aerates and oxygenates the aquaculture water in the purification tank, and the ozone adding device injects ozone into the aquaculture water in the purification tank for continuous ozone sterilization and disinfection.

[0026] The scum foam formed by aeration floats up and is discharged and collected through the foam discharge device at the top of the purification tank;

[0027] The aquaculture water that has been treated with aeration, oxygenation, foam separation and disinfection automatically flows out from the outlet on the side wall of the purification tank under the action of gravity, and an appropriate amount of medicine is added to the outlet pipe through the timed automatic dosing device. Finally, the aquaculture water is sprayed upward and back into the aquaculture pond through the water-pushing flow-making aeration and oxygenation device at the end of the outlet pipe.

[0028] Compared with the prior art, the present invention provides a multifunctional water-pushing and flow-making pond circulating water aquaculture system and a method of use, which has the following beneficial effects:

[0029] The present invention can utilize a pumping pipe to continuously pump the water in the breeding pond to a purification tank at a high place for centralized aeration and oxygenation, foam separation, ozone disinfection, dosing and other treatments, and the treated circulating water can utilize the water level difference gravitational potential energy to realize kinetic energy conversion through a water-pushing flow-making aeration and oxygenation device to form a water-pushing water flow inclined upward at 45 degrees, thereby flowing back to the breeding pond again and realizing unpowered secondary air cutting and oxygenation. Since various water treatment equipment are integrated into the purification tank in an integrated manner through a reasonable layout, the overall spatial distribution size of the breeding system is reduced, and gravity can be used to automatically push water to create flow aeration and oxygenation. A 1.5KW aerator can be reduced at the water spraying point, which greatly reduces the breeding cost. Pushing water to create flow can improve the oxygenation effect and the diffusion rate of the drug throwing.

[0030] The present invention aims at the problems and pain points in the traditional pond aquaculture process, changes the passive aquaculture situation of traditional pond static water aquaculture, relying on the weather, and the water quality of aquaculture water only relying on animal health products and drugs, and focuses on solving the many problems caused by static water aquaculture that cannot be solved by traditional pond aquaculture. It adopts the water-pushing and flow-making pond circulating water aquaculture mode, and provides new ideas and new modes for large water body pond circulating water aquaculture. Specifically, the multifunctional water-pushing and flow-making pond circulating water aquaculture system of the present invention has the following functions:

[0031] (1) Pond circulating water aquaculture function: mainly solves the problem of traditional pond aquaculture that pollution is first treated and then treated. In the face of conventional larger-scale aquaculture ponds (such as less than 10 mu), one of the specifications of the aquaculture system of the present invention can circulate and treat aquaculture water up to 66m 3 / h, daily processing capacity can reach 1584m 3 / day, taking a 10-mu pond as an example, the aquaculture water can be circulated and treated once every 8 to 10 days. For a 6-month aquaculture, a total of 285,120 m3 of aquaculture water is circulated and treated in each aquaculture process. 3 The aquaculture water can be recycled for more than 20 times for a 10-mu pond. In the case of a larger aquaculture pond (such as more than 10 mu), the aquaculture water recycling system of another specification of the present invention can reach 90m 3 / h, daily processing capacity can reach 2160m 3 / day, taking a 15-mu pond as an example, the aquaculture water can be circulated and treated once every 8 to 10 days. For a 6-month aquaculture, a total of 388,800m3 of aquaculture water can be circulated and treated in each aquaculture process. 3 The aquaculture water can be recycled for more than 19 times for a 15-mu pond. The present invention adopts a circulating water aquaculture mode, and achieves twice the result with half the effort through active comprehensive treatment at the source of the problem.

[0032] (2) Insertion-type aeration and foam separation function: mainly solve the problem of increasing dissolved oxygen in aquaculture water and separating water-soluble organic matter in real time, reducing and slowing down the production of ammonia nitrogen and nitrite and the rate of pollution damage to aquaculture. The air volume of the high-pressure fan entering the purification equipment reaches 20-25m per hour. 3 The above can control the dissolved oxygen of aquaculture water to above 4-6 mg / L, separate 100-150 kg / day of high-concentration water-soluble organic foam water, and separate 18,000-27,000 kg of high-concentration water-soluble organic foam water in each aquaculture process. After using aeration and foam to separate water-soluble organic matter, the amount of animal health products used in each aquaculture process can be reduced by more than 40%-50%, and the saved drug costs can meet the electricity expenses of the system operation.

[0033] (3) Water flow aeration and oxygenation function: It mainly solves the problem of traditional fish farming in static water ponds. On the one hand, it uses 66m / h 3 / h of circulating water output, the jet pushes the water flow movement, and the high-dissolved oxygen aquaculture water is continuously replenished, which improves the water quality of the pond aquaculture water and effectively solves the problem of uneven fish size and polarization in the aquaculture process; on the other hand, through the circulation of 66 cubic meters of water per hour, the aquaculture water in the jet flow pond flows, which 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 of traditional pond static water aquaculture. In addition, since the oxygen consumption of large fish increases greatly in the process of gathering in the feeding area to grab food during feeding, the dissolved oxygen in the feeding area drops sharply to about 1.5-2 mg / L after the large fish eat. The ultra-low dissolved oxygen makes it impossible for small fish to go to the feeding area to feed. The present invention adopts the water-pushing flow aeration and oxygenation technology, and a continuous supply of high-dissolved oxygen circulating water is continuously replenished, which solves the serious oxygen deficiency problem in the feeding area. The uniformity of fish in the breeding process is greatly improved, and the fish can be divided 1-2 times less in each breeding process, which not only reduces the breeding cost, but also reduces the stress and damage to the fish. The breeding cycle of each crop can be shortened by about 30 days.

[0034] (4) Timed automatic dosing function: It mainly solves the problem that the traditional pond aquaculture process relies on manual spraying of animal health products and medicines. The present invention adopts a timed automatic dosing method to achieve automatic dosing, which is simple and convenient to operate. When dosing is required, the medicine is poured into the dosing bucket and diluted with water, and the required dosing concentration is adjusted. The dosing concentration regulating valve can achieve a concentration adjustment range of 50 to 300 times. In this way, the medicine is input into the outlet pipe through the dosing pump, and is sprayed into the aquaculture pond through the water-pushing flow-making aeration and oxygenation device to be evenly mixed with the aquaculture water to complete the automatic dosing work; the entire preparation process of automatic dosing takes less than about 10 minutes, which can reduce labor intensity and improve work efficiency by more than 10 times, and has the effect of uniform automatic dosing, which solves the problem of fish stress reaction or poisoning caused by uneven manual spraying.

[0035] (5) Ozone sterilization and disinfection function: It mainly solves the problem of excessive reliance on drugs in traditional pond aquaculture. The present invention adopts safe and environmentally friendly ozone disinfection technology, which has a promoting effect on promoting food safety and protecting the green and healthy aquaculture environment.

[0036] (6) Rotatable support seat: mainly solves the problem of convenience in installation and maintenance of the multifunctional water-pushing and flow-making pond circulating aquaculture system. The support seat of the present invention has a rotatable function, so that installation and maintenance can be completed on the pond base. When 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0038] Figure 1 It is a structural schematic diagram of the present invention;

[0039] Figure 2 It is a schematic diagram of water flow;

[0040] Figure 3 This is a schematic diagram of the distribution of nano aeration tubes;

[0041] Figure 4 This is a schematic diagram of the installation of the cement base and the support base;

[0042] Figure 5 A schematic diagram of using the first support frame to support the water outlet pipe and the water pushing flow pipe;

[0043] Figure 6 A schematic diagram of using a water-pushing flow-making pipe to eject water;

[0044] Figure 7 This is a schematic diagram of the installation of the anti-escape device and the water pumping pipeline for aquaculture;

[0045] Figure 8 It is a three-dimensional structural schematic diagram of a breeding escape prevention device;

[0046] Fig. 9 It is a schematic diagram of the installation of the upper support seat and the lower support seat;

[0047] Fig.10 It is a schematic diagram of the water spraying operation from a bird's-eye view;

[0048] Fig.11 This is a 90-degree rotation installation and maintenance diagram.

[0049] Reference numerals: 1, purification tank; 11, water inlet; 12, water outlet; 13, water circulation device; 131, circulation pipeline; 132, circulation pump; 133, circulation outlet; 134, circulation inlet; 14, enhanced drain outlet; 15, drain pipe; 16, second drain valve; 2, pumping pipeline; 21, circulation pump; 22, aquaculture escape prevention device; 221, escape prevention 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, cone section; 412, cylindrical section; 42, flow guide cover; 421, outlet section; 422, convergence section; 43, bubble discharge pipe; 44, foam collection barrel; 441, cover; 5, water outlet pipe; 51, water push flow aeration and oxygenation device; 511, water push flow pipe; 512, water outlet hole; 52. Timed automatic dosing device; 521. Dosing barrel; 522. Dosing concentration regulating valve; 523. Dosing pipeline; 524. Dosing pump; 525. Water pipe; 526. Dosing water supply valve; 527. First check valve; 528. First drain valve; 53. Liquid level regulating valve; 6. Ozone adding device; 61. Ozone generator; 62. Gas delivery pipeline; 63. Gas input port; 7. Liquid level automatic balancing device; 71. First vertical pipe; 72. Second vertical pipe; 73. Guide Flow pipe; 8. Control device; 9. Breeding pond; 90. Central shaft 90; 91. Cement base; 92. Support seat; 921. Upper support seat; 922. Lower support seat; 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. Reinforcement ribs; 94. Pond base. DETAILED DESCRIPTION

[0050] The technical solution of the present invention will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0051] The present invention is further described in detail below through detailed embodiments in conjunction with the accompanying drawings.

[0052] This embodiment provides a multifunctional water-pushing pond circulating water aquaculture system, which adopts the water-pushing pond circulating water aquaculture mode, focusing on solving many problems caused by static water aquaculture that cannot be solved by traditional pond aquaculture, and provides a new idea and new mode for large water pond circulating water aquaculture. For details, please refer to Figures 1 to 11 The multifunctional water-pushing flow pond circulating water 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 pipe 2 installed with a circulating water pump 21, and the water inlet end of the pumping pipe 2 extends into the aquaculture pond 9; the purification tank 1 is connected to an inserted nano aeration device 3, and a foam discharge device 4 is provided on the top of the purification tank 1; the water outlet 12 is connected to an outlet pipe 5, and the outlet pipe 5 is provided with a water-pushing flow aeration and oxygenation device 51 located above the aquaculture pond 9 at the end away from the purification tank 1, and the position height of the water-pushing flow 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 in the breeding pond can be continuously pumped to the purification tank at a high place through the pumping pipe for centralized aeration and oxygenation, foam separation, ozone disinfection, dosing and other treatments, and the treated circulating water can use the water level difference gravity potential energy to realize kinetic energy conversion through the water-pushing flow aeration and oxygenation device to form an inclined upward water-pushing flow, which will then flow back to the breeding pond for use as breeding water and realize unpowered secondary air cutting and oxygenation. Since various water treatment equipment are integrated into the purification tank in an integrated manner through a reasonable layout, the overall spatial distribution size of the breeding system is reduced, and gravity can be used to automatically push water to create aeration and oxygenation. A 1.5KW aerator can be reduced at the water spraying point, which greatly reduces the breeding cost. Pushing water to create flow can improve the oxygenation effect and the diffusion rate of the drug throwing.

[0053] In some specific embodiments, reference Figure 1 , Figure 5 and Figure 6 The water-pushing flow-making aeration and oxygenation device 51 comprises a horizontally distributed water-pushing flow-making pipe 511, the middle part of which is connected to the water outlet end of the water outlet pipe 5, and the pipe wall of the water-pushing flow-making pipe 511 is provided with a plurality of water outlet holes 512 that spray water upwards at an angle. Under the action of gravity, the water in the purification tank flows out through the water outlet pipe, and forms a water-pushing flow that sprays upwards at an angle at the water outlet hole. After falling into the culture pond, the water-pushing flow can bring in a large amount of air, thereby achieving the purpose of unpowered secondary automatic oxygenation, and increasing the oxygenation coverage, improving the oxygenation effect and the diffusion rate of the drug throwing.

[0054] Preferably, Figure 6 As shown, the angle between the central axis of the water outlet 512 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 ejection stroke of the water-pushing flow and make the water-pushing flow more divergent at the water entry point, improve the oxygenation effect, and increase the oxygenation coverage area. It is beneficial to the diffusion of the drug and the uniform mixing of the drug with the aquaculture water after entering the water, which can reduce the harm to the fish caused by excessive concentration due to uneven mixing.

[0055] refer to 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 flow and increase the area of ​​contact with the air, thereby improving the oxygenation effect and the diffusion rate of the drug delivery. Specifically, as an example, the size of the water outlet hole 512 is 150 mm long and 1.8 mm wide. The water-pushing flow-making pipe 511 is a hollow cylindrical pipe, and there are ten water outlet holes 512 on the water-pushing flow-making pipe 511, which are symmetrically distributed on the pipe wall of the water-pushing flow-making pipe 511.

[0056] In some specific embodiments, reference Figure 1 to Figure 3 The insertable nano-aeration device 3 includes an air pump 31, an air inlet pipe 32 and a plurality of parallel nano-aeration tubes 33. 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 tube 33. The other end of each nano-aeration tube 33 is inserted into the inner cavity of the purification tank 1. The nano-aeration tube 33 has an aeration port at one end located inside the purification tank 1. By starting the air pump, the water in the purification tank can be continuously aerated and oxygenated. The bubbles generated by aeration can reach the nanometer level, thereby better removing water-soluble organic matter in the water. Specifically, as Figure 3 As shown, as an example, there are nine nano aeration tubes 33 distributed in parallel. The side wall of each nano aeration tube 33 is provided with a plurality of circular aeration ports. It should be noted that in some other embodiments, the number of nano aeration tubes and aeration ports can 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 to prevent the water inside the purification tank 1 from flowing back to the air pump 31.

[0057] In some specific embodiments, reference Figure 1 and Figure 2 The foam discharge device 4 includes a collection hood 41 located at the top of the purification tank 1 and a flow guide hood 42 connected to the top of the collection hood 41. The flow guide hood 42 is connected to a bubble discharge pipe 43. The bubble discharge pipe 43 is connected to a foam collection bucket 44 at one end away from the flow guide hood 42. In this way, the scum foam formed by the aeration treatment can be collected by the collection hood after floating up, and finally drained by the flow guide hood into the bubble discharge pipe, so as to be collected in the foam collection bucket.

[0058] Specifically, Figure 2 As shown, the collecting hood 41 includes a conical section 411 at the bottom and a cylindrical section 412 at the top. The deflector 42 includes a discharge section 421 connected to the cylindrical section 412 and a convergence section 422 located below the discharge section 421. The discharge section 421 has a discharge slope that is inclined outward and downward to quickly discharge scum foam. The foam collecting barrel 44 is provided with a cover 441 for opening to empty the foam inside.

[0059] In this embodiment, reference Figure 1 and Figure 2 , the purification tank 1 is connected to an ozone adding device 6. Specifically, the ozone adding device 6 includes an ozone generator 61, a gas delivery pipeline 62 and a gas input port 63 arranged on the tank wall of the purification tank 1, and 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 to perform 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% to 40%, and the nitrite removal rate can reach more than 50% to 60%. The gas delivery pipeline has an inverted U-shaped section, which can prevent the aquaculture water inside the purification tank 1 from flowing back to the ozone generator.

[0060] As a preferred embodiment, the ozone generator 61 uses an oxygen source ozone integrated machine. The pure oxygen output end and the ozone output end of the oxygen source ozone integrated machine are connected to the gas delivery pipeline 62 through valves respectively, so that the oxygen source ozone integrated machine can choose to introduce ozone or pure oxygen into the purification tank 1. When pure oxygen is introduced, the dissolved oxygen in the aquaculture water can be increased, the aquaculture density can be increased, the output can be increased, and the economic benefits can be improved; when ozone is introduced, the aquaculture water can be sterilized and disinfected by adding ozone, the occurrence of diseases during the aquaculture process can be prevented, the success rate of aquaculture can be improved, and healthy aquaculture without antibiotics can be achieved.

[0061] refer to Figure 1 and Figure 2 In some embodiments, as an improvement, the purification tank 1 is connected to a water circulation device 13. Specifically, the water circulation device 13 includes a circulation pipe 131, a circulation pump 132, and a circulation outlet 133 and a circulation inlet 134 arranged on the tank wall of the purification tank 1. The circulation pump 132 is connected in series to the circulation pipe 131, and the two ends of the circulation pipe 131 are respectively connected to the circulation outlet 133 and the circulation inlet 134. By starting the circulation pump, the water in the purification tank can be pumped out and reflowed into the interior of the purification tank, so that the water body forms a circulation flow at the purification tank, so as to promote and improve the effect of ozone disinfection and aeration oxygenation treatment.

[0062] Preferably, the circulating water inlet 134 is connected to a Venturi gas supply pipe which is in communication with the gas input port 63 , so that pure oxygen or ozone can be adsorbed and introduced into the purification tank 1 by utilizing the Venturi effect.

[0063] refer to Figure 1 and Figure 2In some embodiments, as an improvement, the purification tank 1 is connected to an automatic liquid level balancing device 7. Specifically, the automatic liquid level balancing device 7 includes a first vertical pipe 71 and a second vertical pipe 72 that are vertically and parallelly distributed, the upper ends of the first vertical pipe 71 and the upper ends of the second vertical pipe 72 are both open, a guide pipe 73 is connected between the first vertical pipe 71 and the second vertical pipe 72, a reinforced drain port 14 is provided on the tank wall of the purification tank 1, the lower end of the first vertical pipe 71 is connected to the reinforced drain port 14, the lower end of the second vertical pipe 72 is connected to the outlet pipe 5, and the guide pipe 73 is located at a higher height than the outlet port 12. During the water circulation process during the day, due to the peak power consumption, the operating power of the circulating water pump is smaller than that of 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 discharged smoothly through the water outlet; however, when the power consumption is low at night, the operating power of the circulating water pump at this time is increased compared to normal use, resulting in faster pumping, and the water level in the purification tank will also increase accordingly. In order to prevent the water inside the purification tank from flowing upward into the guide cover, an automatic liquid level balancing device is set to speed up drainage. Specifically, the first vertical pipe 71, the second vertical pipe 72 and the guide pipe 73 together constitute an H-shaped communicating vessel. Since the position height of the guide pipe is higher than the position height of the outlet, when the water level inside the purification tank rises to a certain height, the water inside the purification tank can also automatically flow through the first vertical pipe, the guide pipe and the second vertical pipe in sequence through the enhanced drainage port and discharge into the outlet pipe. The diameter of the 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 enhanced drain port 14 is larger than the diameter of the water outlet 12, so that 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 in the purification tank 1 can be adjusted by manually adjusting the liquid level regulating valve 53.

[0064] In this embodiment, if 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.

[0065] refer to Figure 1 to Figure 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.

[0066] Specifically, refer to Figure 4 and Fig. 9 The upper support seat 921 and the lower support seat 922 are both steel structure components. The upper support seat 921 has an upper support column 923 facing vertically downward, and the lower support seat 922 has a lower support column 924 facing vertically upward. The upper support column 923 and the lower support column 924 are rotatably connected with the central rotating shaft 90. Two lower inner flange positioning plates 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 plates 926. Two upper inner flange positioning plates 925 are fixed to the lower part of the upper support column 923, and the two upper inner flange positioning plates 925 have mounting holes plugged into the upper part of the central rotating shaft 90. 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 plates 925. The locking structure includes an upper outer flange fixing plate 927 fixedly connected to the lower part of the upper support column 923, a lower outer flange fixing plate 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 plate 927 and the lower outer flange fixing plate 928. The upper support column 923, the lower support column 924 and the central shaft 90 form a rotatable steel structure frame column, such as Fig.10 As shown in the figure, in normal operation, the bolt and nut assembly can be connected and locked. Fig.11 As shown, the bolt and nut assembly 929 can be loosened and the upper support column 923 can be pushed and rotated 90°, so that various components such as the water-pushing flow-making aeration and oxygenation device fixed on the upper support seat 921 can be rotated to the pond base, thereby facilitating equipment installation and maintenance. After the system is assembled and debugged, it can be rotated another 90° to extend the water-pushing flow-making aeration and oxygenation device to the working position above the culture pond, and then it can enter a normal working state.

[0067] refer to Figure 1 and Figure 5 In some embodiments, the support seat 92 is connected to an L-shaped first support frame 93 for supporting the water outlet pipe 5, and the first support frame 93 is connected to an inclined reinforcement rib 931. The horizontal section of the first support frame 93 extends to the top of the breeding pond. Through the first support frame, it is convenient to support and extend the water outlet pipe to the top of the breeding pond; by welding the reinforcement ribs, the strength of the first support frame can be improved, and it is not easy to deform and collapse.

[0068] In this embodiment, the control device 8 may be a PLC controller with programming function. Figure 1 As shown, the control device 8 is fixed on the support base 92 through an electrical box and is located below the purification tank 1 to avoid being exposed to the sun and rain.

[0069] refer to Figure 1 , Figure 7 and Figure 8 In some embodiments, as an improvement, the water inlet end of the water pumping pipe 2 is connected with a breeding escape prevention device 22. The breeding escape prevention device 22 includes an escape prevention cover 221 of a hollow cover structure and a second support frame 222 fixedly connected to the escape prevention cover 221. The upper part of the escape prevention cover 221 is provided with a water inlet area, and the water inlet area is provided with a plurality of water inlet meshes 2211 connected to the inner cavity of the escape prevention cover 221; the side wall of the escape prevention cover 221 is provided with a connecting pipe 2212 connected to the inner cavity of the escape prevention cover, and the connecting pipe 2212 is connected to the water inlet end of the water pumping pipe 2. By installing the breeding escape prevention device, it is possible to prevent the aquatic organisms from escaping and prevent the silt below from blocking the water inlet end of the water pumping pipe and affecting the water pumping.

[0070] like Figure 7 and Figure 8 As shown, specifically, the anti-escape cover 221 is cylindrical, the central axis of the anti-escape cover 221 is horizontally distributed, and the water inlet area is located at the upper part of the circumferential side wall of the anti-escape cover. The water inlet meshes 2211 are distributed in multiple rows, and the water inlet meshes 2211 of two adjacent rows are staggered, which can better prevent the passage of aquatic organisms and have a better anti-blocking effect. Among them, the water inlet mesh 2211 is a long strip through hole. Compared with the circular through hole, it has more water inlet space and is less likely to be blocked by aquatic organisms such as snails or other debris. Preferably, the width of the water inlet mesh is 2 to 4 mm, and the length of the water inlet mesh is 50 to 80 mm, so that it can better have both anti-escape effect and higher pumping efficiency. As an example, the width of the water inlet mesh can be set to 3 mm and the length can be set to 60 mm.

[0071] In some specific embodiments, such as Figure 8 As shown, two second support frames 222 are provided, and both second support frames 222 are in an inverted V shape and are respectively located at the two ends of the anti-escape 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 anti-escape cover 221. In this way, the bottom of the support rod can be used to pierce the mud at the bottom of the pool, and the anti-escape cover can be supported more firmly. As an example, the anti-escape 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 and formed by welding, which is convenient for production.

[0072] In some embodiments, Figure 1 As shown, the pumping pipe 2 is connected to a second check valve 23 to prevent the water in the purification tank from flowing back into the breeding pond through the pumping pipe.

[0073] In some embodiments, Figure 1 and Figure 2As shown, a drain pipe 15 is provided at the bottom of the purification tank 1, and the drain pipe 15 is connected to a second drain valve 16. When cleaning and maintenance are required, the water inside the purification tank can be drained by opening the second drain valve.

[0074] refer to Figures 1 to 11 The method of using the multifunctional water-pushing and flow-making pond circulating water aquaculture system of the present invention is as follows:

[0075] The circulating water pump 21 is started, and the aquaculture water in the aquaculture pond 9 is pumped from the pumping pipe 2 through the water inlet 11 at the aquaculture escape prevention device into the purification tank 1;

[0076] 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 adding device 6 injects ozone into the aquaculture water in the purification tank 1 to continuously sterilize and disinfect the aquaculture water.

[0077] The scum foam formed by aeration floats up and is discharged through the collecting cover 41 and the guide cover 42 on the top of the purification tank 1, and then flows into the foam collecting barrel 44 for collection;

[0078] The aquaculture water after aeration, oxygenation, foam separation and disinfection automatically flows out from the water outlet 12 on the side wall of the purification tank 1 under the action of water level difference gravity and enters the outlet pipe 5. An appropriate amount of medicine can be added to the outlet pipe 5 through the timed automatic dosing device 52. Finally, the aquaculture water is sprayed upward at an angle of 45 degrees from the outlet hole 512 on the water-pushing flow-making pipe 511 at the end of the outlet pipe 5 and flows back into the aquaculture pond, so as to achieve water-pushing oxygenation and improve the diffusion rate of the drug.

[0079] In addition, when the electricity consumption is low at night, the operating power of the circulating water pump 21 at this time is increased compared with normal use, resulting in faster pumping, and the water level in the purification tank 1 will also increase accordingly. Since an automatic liquid level balancing device 7 is provided, when the water level inside the purification tank 1 rises to the height of the guide pipe 73, under the communicating vessel effect, the water inside the purification tank 1 can also automatically flow through the enhanced drainage port 14 through the first vertical pipe 71, the guide pipe 73 and the second vertical pipe 72 in sequence and discharge into the water outlet pipe 5, thereby accelerating drainage and balancing the water level to ensure stable operation.

[0080] The multifunctional water-pushing and flow-making pond circulating water aquaculture system of the present invention can well carry out circulation purification, disinfection, drug addition and other multi-faceted treatments on aquaculture water bodies, and is suitable for treating aquaculture water bodies of fish, shrimps, snails and the like.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

[0082] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes 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. A method for using a multifunctional water-pushing and flow-generating pond circulating water aquaculture system, characterized in that: The following steps are involved: Start the circulating water pump, and the aquaculture water in the aquaculture pond is pumped into the purification tank through the water inlet through the pumping pipe; The aquaculture water extracted and put into the purification tank circulates, the inserted nano-aeration device continuously aerates and oxygenates the aquaculture water in the purification tank, and the ozone adding device injects ozone into the aquaculture water in the purification tank for continuous ozone sterilization and disinfection. The scum foam formed by aeration floats up and is discharged and collected through the foam discharge device at the top of the purification tank; The aquaculture water that has been treated with aeration, oxygenation, foam separation and disinfection automatically flows out from the outlet on the side wall of the purification tank under the action of gravity, and an appropriate amount of medicine is added to the outlet pipe through the timed automatic dosing device. Finally, the aquaculture water is sprayed upward and back into the aquaculture pond through the water-pushing flow-making aeration and oxygenation device at the end of the outlet pipe.

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