Automatic efficient aquaculture system and method

Abstract

The invention discloses an automatic efficient aquaculture system and method.The aquaculture system comprises an oxygen supply circulation mechanism, a sterilization mechanism, a refrigeration mechanism and a PLC control unit, has four functional modes of natural oxygen supply, cold oxygen supply, disinfection and sterilization and cold oxygen supply and disinfection and sterilization, and can adjust the water temperature and disinfect and sterilize a water body while supplying oxygen. Wherein an electrochemical technology is adopted for disinfection and sterilization, multi-element gas is generated through plasma discharge, pathogenic microorganisms in water can be thoroughly killed, water body pollution can be prevented, water body parameters can be monitored and adjusted to reach safe numerical values, and the optimal conditions suitable for aquatic product growth can be maintained. The system is compact in structure, convenient to install and suitable for various breeding scenes such as large professional farms and small and medium-sized breeding bases, the production efficiency of aquaculture is improved, the survival rate and quality of aquatic products are remarkably improved, and higher economic benefits are brought to farmers.

Description

Technical Field

[0001] The present invention relates to the technical field of ecological aquaculture, and in particular to an automated and efficient aquaculture system and method. Background Art

[0002] With the growth of the global population and the increasing demand for high-quality food, the aquaculture industry is facing unprecedented challenges and opportunities. How to increase production with limited resources and ensure the health and safety of aquatic products has become a core issue of concern to the industry. Automated and efficient aquaculture equipment has emerged to solve these problems through technological innovation and lead aquaculture into a new era.

[0003] At present, aquaculture farmers use chemicals to treat and degrade water bodies for routine disinfection and sterilization, which will produce a large number of harmful substances and bring harm to the growth environment of aquatic products. With the continuous increase in pond farming density, the impact of the environment during the process of pond water supply, feeding and medication will cause a large number of harmful bacteria and viruses to be produced in the aquaculture water, which will cause more and more harm to aquatic products. Summary of the invention

[0004] The present invention provides an automated and efficient aquaculture system and method, which can generate a variety of gases by aerating the water body, and can quickly kill bacteria, viruses and microorganisms, and can also remove heavy metal ions and the like in the water body, which have strong oxidizing properties and can destroy the cell structure and DNA of bacteria and viruses, thereby achieving a sterilization and disinfection effect.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows: Automated and efficient aquaculture system, including: A breeding pond, wherein the breeding pond has an oxygen supply inlet; The oxygen supply circulation mechanism comprises an air filter, a high-pressure water-cooling fan and a heat exchange unit; the first port of the high-pressure water-cooling fan is connected to the air filter, the second port is connected to the air inlet of the heat exchange unit and / or the oxygen supply inlet of the culture pond, and an electrically controlled air valve is arranged between the second port of the high-pressure water-cooling fan and the air inlet of the heat exchange unit and / or the oxygen supply inlet of the culture pond, the air outlet of the heat exchange unit is connected to the oxygen supply inlet of the culture pond through an exhaust duct, and a No. 1 temperature sensor is installed at the air outlet of the heat exchange unit; The sterilization mechanism comprises a gas processor; the gas inlet of the gas processor is connected to the gas outlet of the heat exchange unit, the gas outlet of the gas processor is connected to the oxygen supply inlet of the breeding pond through an exhaust pipe, and a second temperature sensor is installed at the gas outlet of the gas processor; The PLC control unit mechanism includes a condenser, a refrigeration compressor and a cold water tank; the first port of the cold water tank is connected to the water outlet of the high-pressure water-cooling fan, the second port of the cold water tank is provided with a cold water circulation pump, and is connected to the water inlet of the heat exchange unit, the third port of the cold water tank is provided with a throttle, and is connected to the refrigerant outlet of the condenser, the fourth port of the cold water tank is connected to the inlet end of the refrigeration compressor, the outlet end of the refrigeration compressor is connected to the refrigerant inlet of the condenser, the water outlet of the heat exchange unit is connected to the water inlet of the gas processor, and the water outlet of the gas processor is connected to the water inlet of the high-pressure water-cooling fan; A PLC control unit is electrically connected to the oxygen supply circulation mechanism, the sterilization mechanism and the refrigeration mechanism.

[0006] Furthermore, the heat exchange unit includes an air heat exchanger, a gas-liquid separator and an air purifier which are arranged in sequence along the gas flow direction; the air heat exchanger is used to cool the incoming gas and produce a large amount of condensed water, the condensed water is separated by the gas-liquid separator, and the separated gas is purified by the air purifier to produce a large amount of O2 gas; a drain valve is provided at the bottom of the heat exchange unit, and the liquid after the condensed water is separated is discharged through the drain valve.

[0007] Furthermore, the air purifier is used to ionize a large amount of pollutants and tiny particles in the surrounding environment through the DC high-voltage electric field of air purification, and then adsorb them through the low-voltage electric field. The treated gas contains a large amount of negative oxygen ion air, which is conducive to the gas processor to exert its super long effect.

[0008] Furthermore, the gas-liquid separator adopts a centrifugal gas-liquid separator, model KLJ-FLQ-380U.

[0009] Furthermore, a plurality of dielectric electrodes are arranged transversely in the gas processor, and hollow air passages are arranged at both ends of the dielectric electrode; O2 gas enters the gas processor and reacts with the dielectric electrode to generate O3 gas, and enters the exhaust pipe through the hollow air passage to aerate the culture pond; the gas processor is connected to an external processor power supply. The gas processor adopts a honeycomb circular hole channel, and the power supply adopts high voltage and high frequency. The hollow design is adopted at both ends of the outer electrode to adjust the center point of the inner electrode so that it will not deviate and ensure that the gap around the inner electrode and the outer electrode is even, so that the electric field discharge is stable and the ventilation is smooth. The inner and outer electrodes are made of high-grade corrosion-resistant 316L stainless steel with high conductivity, and the intermediate medium is made of high-purity quartz tube. The inner electrode is sealed at both ends of the quartz tube with a rubber seal design. The outer diameter of both ends of the quartz tube is the same as the inner diameter outside the hollow opening of the outer electrode. The air enters the electric field of the inner and outer electrodes through the hollow opening of the outer electrode for ionization, and the treated gas is discharged from the hollow opening at the other end of the outer electrode.

[0010] Furthermore, the drain valve is provided at the bottom of the gas processor. Preferably, the drain valve is a stainless steel float type drain valve, model YA-S6.

[0011] Furthermore, a liquid level meter is provided on the cold water tank, and an electric drain valve is provided at the bottom of the cold water tank.

[0012] Furthermore, a water quality sensor is installed in the breeding pond for real-time monitoring of water parameters and sending the water parameters to the PLC control unit; the water parameters include dissolved oxygen, ammonia nitrogen, nitrite, cyanobacteria, hydrogen sulfide and pH value.

[0013] The automated and efficient aquaculture method comprises the following steps: 1) Natural oxygen supply: natural air is filtered through the air filter and then enters the high-pressure water-cooled fan for compression. The electric-controlled air valve is used to control the gas flow to the breeding pond to aerate the water body and increase dissolved oxygen; 2) Supply of cooling oxygen: natural air is filtered through the air filter and then enters the high-pressure water-cooling fan for compression. The electrically controlled air valve is used to control the gas flow to the heat exchange unit. The air heat exchanger generates a large amount of condensed water after cooling the gas. The condensed water is separated by the gas-liquid separator, and the separated liquid is discharged through the drain valve. The separated gas enters the air purifier, and harmful substances in the gas are removed in the air purifier. The No. 1 temperature sensor is used to monitor the temperature of the purified gas and send the temperature information to the PLC control unit. The PLC control unit controls the refrigeration mechanism to provide the air heat exchanger with refrigerant of the set temperature, thereby cooling the gas. The cooled gas enters the breeding pond through the exhaust pipe to cool the water and supply oxygen; 3) Disinfection and sterilization: When the water parameters in the breeding pond exceed the set safety value, the PLC control unit controls the start of the sterilization mechanism, the gas processor is powered by an external power supply, and the gas produces a large amount of O2 gas after being purified by the air purifier. The O2 gas enters the gas processor and reacts with the dielectric electrode to produce O3 gas, which enters the exhaust pipe through the hollow airway to aerate the breeding pond. The second temperature sensor is used to monitor the temperature of the O3 gas and control the gas temperature at 22°C; 4) Cold oxygen supply + disinfection and sterilization: The temperature of O2 gas, that is, the inlet temperature of the gas processor, is monitored by the No. 1 temperature sensor. When the inlet temperature is within the set temperature range, the gas processor automatically turns on and performs disinfection and sterilization. The O3 gas, that is, the outlet temperature of the gas processor, is monitored by the No. 2 temperature sensor. When the outlet temperature is within the set temperature range, the gas processor continues to operate stably. When the outlet temperature exceeds the set temperature range, the gas processor automatically shuts down. At this time, the high-pressure water-cooling fan and the refrigeration mechanism are running to provide the air heat exchanger with refrigerant of the set temperature, thereby cooling the gas. When the No. 2 temperature sensor detects that the outlet temperature is within the set temperature range, the gas processor will be reopened.

[0014] Furthermore, the air inlet temperature of the gas processor is set to 18~20°C, and the air outlet temperature is set to 22~24°C.

[0015] Compared with the prior art, the present invention has the following advantages or beneficial effects: The present invention provides an automated and efficient aquaculture system, which not only has an oxygen supply function, but also can adjust the water temperature while supplying oxygen, as well as disinfect and sterilize the water body. The disinfection and sterilization adopts electrochemical technology, which produces multi-element gas through plasma discharge, which can not only completely eliminate pathogenic microorganisms in the water and prevent water pollution, but also monitor and adjust the pH of the water, dissolved oxygen, ammonia nitrogen, nitrite, cyanobacteria, and hydrogen sulfide to safe values, and maintain the best conditions for the growth of aquatic products. Electrochemical technology is a physical method rather than a chemical agent for treatment, which avoids the problem of drug residues and ensures the safety and health of aquaculture products. The system has a compact structure and is easy to install. It is suitable for a variety of breeding scenarios such as large professional farms, small and medium-sized breeding bases, etc., which improves the production efficiency of aquaculture, and also significantly improves the survival rate and quality of aquatic products, bringing higher economic benefits to farmers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of an automated and efficient aquaculture system; In the figure, 1. air filter, 2. high-pressure water-cooled fan, 3. electric-controlled air valve, 4. air heat exchanger, 5. gas-liquid separator, 6. air purifier, 7. No. 1 temperature sensor, 8. gas processor, 9. drain valve, 10. condenser, 11. electric drain valve, 12. No. 2 temperature sensor, 13. refrigeration compressor, 14. cold water circulation pump, 15. cold water tank, 16. electric drain valve, 17. processor power supply, 18. dielectric electrode, 19. hollow air duct, 20. PLC control unit, 21. breeding pond. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] Please refer to the attached Figure 1 The present invention provides an automated and efficient aquaculture system, comprising a culture pond 21, an oxygen supply circulation mechanism, a sterilization mechanism, a refrigeration mechanism and a PLC control unit. Specifically: The oxygen supply circulation mechanism includes an air filter 1, a high-pressure water-cooling fan 2 and a heat exchange unit. The air filter 1 adopts a medium-efficiency air filter. The first port of the high-pressure water-cooling fan 2 is connected to the air filter 1, and the second port is connected to the air inlet of the heat exchange unit and the oxygen supply inlet of the culture pool 21. An electrically controlled air valve 3 is arranged between the second port of the high-pressure water-cooling fan 2 and the air inlet of the heat exchange unit and the oxygen supply inlet of the culture pool. The air outlet of the heat exchange unit is connected to the oxygen supply inlet of the culture pool 21 through an exhaust pipe, and a temperature sensor No. 1 7 is installed at the air outlet of the heat exchange unit. Among them, the heat exchange unit includes an air heat exchanger 4, a gas-liquid separator 5 and an air purifier 6 which are installed in the casing and arranged in sequence along the gas flow direction. The air heat exchanger 4 is used to cool the inflowing gas and produce a large amount of condensed water. The condensed water is separated by the gas-liquid separator 5. The separated gas is purified by the air purifier 6 and a large amount of O2 gas is produced. A drain valve 9 is provided at the bottom of the heat exchange unit, and the liquid after the condensed water is separated is discharged through the drain valve 9. Preferably, the gas-liquid separator is a centrifugal gas-liquid separator, model KLJ-FLQ-380U. The integrated installation in the casing can make the internal structure more compact, reduce the pipeline connection between adjacent devices, and reduce the production cost.

[0020] The sterilization mechanism includes a gas processor 8. The gas inlet of the gas processor 8 is connected to the gas outlet of the heat exchange unit, the gas outlet of the gas processor 8 is connected to the oxygen supply inlet of the culture pond 21 through the exhaust pipe, and a second temperature sensor 12 is installed at the gas outlet of the gas processor 8. The gas processor 8 is externally connected to a processor power supply 17.

[0021] The refrigeration mechanism includes a condenser 10, a refrigeration compressor 13 and a cold water tank 15. The first port of the cold water tank 15 is connected to the water outlet of the high-pressure water cooling fan 2, the second port of the cold water tank 15 is provided with a cold water circulation pump 14, and is connected to the water inlet of the heat exchange unit, the third port of the cold water tank 15 is provided with a throttle, and is connected to the refrigerant outlet of the condenser 10, the fourth port of the cold water tank 15 is connected to the inlet end of the refrigeration compressor 13, the outlet end of the refrigeration compressor 13 is connected to the refrigerant inlet of the condenser 10, the water outlet of the heat exchange unit is connected to the water inlet of the gas processor 8, and the water outlet of the gas processor 8 is connected to the water inlet of the high-pressure water cooling fan 2. The cooling water is supplied to the microchannel heat exchanger plates of the air heat exchanger 4 through the cold water circulation pump 14 for heat exchange. When the high-pressure water-cooled fan 2 is working, the air will be subjected to pressure and friction of the blades to generate high temperature, which is cooled to 20 degrees Celsius through the heat exchanger. The water flowing out of the air heat exchanger 4 enters the gas processor 8. When the processor is working, the electric field will generate high temperature, which requires water circulation to cool down in order to work stably for a long time. The water outlet of the processor is connected to the water inlet at the lower end of the high-pressure water-cooled fan 2. When the fan is working, the friction between the air and the blades will generate high temperature, which is cooled by water cooling through the fan casing, and flows out from the upper outlet into the cold water tank 15, and is cooled by the refrigeration compressor 13 to the evaporator in the cold water tank 15 for cooling treatment and recycling, thereby optimizing energy consumption design and reducing operating costs.

[0022] The PLC control unit 20 is electrically connected to the oxygen supply circulation mechanism, the sterilization mechanism and the refrigeration mechanism.

[0023] In the above structure, a plurality of dielectric electrodes 18 are transversely arranged in the gas processor 8, and hollow air passages 19 are arranged at both ends of the dielectric electrodes 18. O2 gas enters the gas processor 8 and reacts with the dielectric electrodes 18 to generate O3 gas, which enters the exhaust pipe through the hollow air passage 19 to aerate the breeding pond 21. The gas processor 8 is externally connected to a processor power supply 17, and a drain valve 9 is arranged at the bottom of the gas processor 8.

[0024] The gas processor 8 adopts a honeycomb circular hole channel. The gap between the inner electrode and the outer electrode of the gas processor currently on the market adopts the design of the inner wall convex point and no convex point of the outer electrode. During assembly, the inner electrode is easy to deviate from the center point, so that the gap between the inner and outer electrodes has a large deviation and uneven discharge, resulting in poor ventilation. In this embodiment, the gas processor 8 adopts a hollow design at both ends of the high-voltage and high-frequency outer electrode to adjust the center point of the inner electrode so that it will not deviate and ensure that the gap around the inner electrode and the outer electrode is even, so that the electric field discharge is stable and the ventilation is smooth. The inner and outer electrodes are made of high-grade corrosion-resistant 316L stainless steel with high conductivity, and the intermediate medium is a high-purity quartz tube. The inner electrode is sealed at both ends of the quartz tube. The outer diameter of the two ends of the quartz tube is the same as the inner diameter outside the hollow opening of the outer electrode. The two ends are filled with silicone O-rings. The air enters the electric field of the inner and outer electrodes through the hollow opening of the outer electrode for ionization, and the treated gas is discharged from the hollow opening at the other end of the outer electrode.

[0025] The water inlet and outlet of the gas processor 8 are both arranged at the top, forming an upper water inlet and upper water outlet structure. The refrigeration mechanism is connected to the oxygen supply circulation mechanism and the sterilization mechanism through pipelines to form a water circulation structure. A water storage tank connected to the high-pressure water cooling fan 2 is arranged at the bottom. The two ends of the water storage tank are the water inlet and water outlet of the high-pressure water cooling fan 2, and are respectively connected to the first port of the cold water tank 15 and the water outlet of the gas processor 8. During the entire water circulation process, the liquid in the cold water tank 15, the water storage tank and the water pipe is in a saturated state. If the water outlet of the gas processor 8 is set at the bottom, when the system stops running, the liquid in the water outlet pipe will move downward under its own gravity, causing the water pressure in the water storage tank to increase, forming a safety hazard, and after the system resumes operation, the water circulation system will be partially interrupted, affecting the refrigeration efficiency.

[0026] The bottom of the heat exchange unit and the gas processor 8 are both provided with a drain valve 9, which is a stainless steel float type drain valve, model YA-S6, and the float will automatically drain water as the liquid level in the device rises. Preferably, the bottom of the cold water tank 15 and the gas processor 8 is also provided with an electric drain valve 11, the purpose of which is to drain the water inside the device to avoid freezing inside the device in cold weather, which damages the internal pipeline structure and affects the service life of the device.

[0027] Further explanation, a water quality sensor is installed in the breeding pond 21 for real-time monitoring of water parameters and sending the water parameters to the PLC control unit 20. Water parameters include: dissolved oxygen, ammonia nitrogen, nitrite, cyanobacteria, hydrogen sulfide and pH value. When the water quality sensor detects that the water parameters in the breeding pond 21 exceed the set safety value, it will issue an alarm message and upload the water data. After receiving the signal, the PLC control unit 20 will immediately start the sterilization mechanism and release a large amount of O3 gas to the breeding pond 21 through the gas processor 8 for aeration. Through plasma discharge technology, multi-element gas is generated, which can not only completely eliminate pathogenic microorganisms in the water and prevent water pollution, but also monitor and adjust the water pH, dissolved oxygen, ammonia nitrogen, nitrite, cyanobacteria, and hydrogen sulfide to safe values, and maintain the best conditions for the growth of aquatic products. In addition, the system can also be equipped with a dedicated app, and users can view the system operation status and water data anytime and anywhere through mobile phones, computers and other devices.

[0028] The above automated and efficient aquaculture system can provide four functional modes: 1. Natural oxygen supply: Natural air is filtered through the air filter 1 and enters the high-pressure water-cooled fan 2 for compression. The electric-controlled air valve 3 is used to control the gas flow to the breeding pond 21 to aerate the water body and increase dissolved oxygen.

[0029] 2. Supply of cooling oxygen: natural air is filtered through the air filter 1 and then enters the high-pressure water-cooling fan 2 for compression. The gas is controlled to flow to the heat exchange unit by the electrically controlled air valve 3. The air heat exchanger 4 generates a large amount of condensed water after cooling the gas. The condensed water is separated by the gas-liquid separator 5. The separated liquid is discharged through the drain valve 9. The separated gas enters the air purifier 6. The harmful substances in the gas are removed in the air purifier 6. The No. 1 temperature sensor 7 is used to monitor the temperature of the purified gas and send the temperature information to the PLC control unit 20. The PLC control unit 20 controls the refrigeration mechanism to provide the air heat exchanger 4 with refrigerant of the set temperature, thereby cooling the gas. The cooled gas enters the breeding pond 21 through the exhaust pipe to cool the water and supply oxygen.

[0030] 3. Disinfection and sterilization: When the water parameters in the breeding pond 21 exceed the set safety value, the PLC control unit 20 controls the start of the sterilization mechanism, and the gas processor 8 is powered by the external power supply 17. After the gas is purified by the air purifier 6, a large amount of O2 gas is generated. The O2 gas enters the gas processor 8 and corona-electrically reacts with the dielectric electrode 18 to generate O3 gas, which enters the exhaust pipe through the hollow air duct 19 to aerate the breeding pond 21. The No. 2 temperature sensor 12 is used to monitor the temperature of the O3 gas and control the gas temperature at 22°C.

[0031] 4. Cold oxygen supply + disinfection and sterilization: The pre-treatment process is the same as the cold oxygen supply. The inlet air temperature of the gas processor 8 is monitored by the No. 1 temperature sensor 7. When the inlet air temperature is 18~20℃, the gas processor 8 automatically turns on and performs disinfection and sterilization. The outlet air temperature of the O3 gas processor 8 is monitored by the No. 2 temperature sensor 12. When the outlet air temperature is 22~24℃, the gas processor 8 continues to operate stably. When the outlet air temperature exceeds 24℃, the gas processor 8 automatically shuts down. At this time, the high-pressure water-cooling fan 2 and the refrigeration mechanism continue to operate, providing the air heat exchanger 4 with a set temperature of refrigerant, thereby cooling the gas. When the No. 2 temperature sensor 12 detects that the outlet air temperature is 22~24℃, the gas processor 8 will be reopened.

[0032] The automated and efficient aquaculture system provided by the present invention not only has the function of supplying oxygen, but also can adjust the water temperature while supplying oxygen, as well as disinfect and sterilize the water body. The disinfection and sterilization adopts electrochemical technology, which produces multi-element gas through plasma discharge, which can not only completely eliminate pathogenic microorganisms in the water and prevent water pollution, but also monitor and adjust the pH of the water, dissolved oxygen, ammonia nitrogen, nitrite, cyanobacteria, and hydrogen sulfide to safe values, and maintain the best conditions for the growth of aquatic products. Electrochemical technology is a physical method rather than a chemical agent for treatment, which avoids the problem of drug residues and ensures the safety and health of aquaculture products. The system has a compact structure and is easy to install. It is suitable for a variety of aquaculture scenarios such as large professional farms, small and medium-sized aquaculture bases, improves the production efficiency of aquaculture, and significantly improves the survival rate and quality of aquatic products, bringing higher economic benefits to farmers.

Claims

1. Automated and efficient aquaculture system, characterized in that: include: A breeding pond (21), wherein the breeding pond (21) has an oxygen supply inlet; An oxygen supply circulation mechanism comprises an air filter (1), a high-pressure water-cooling fan (2) and a heat exchange unit; a first port of the high-pressure water-cooling fan (2) is connected to the air filter (1), a second port is connected to an air inlet of the heat exchange unit and / or an oxygen supply inlet of the culture pond (21), and an electrically controlled air valve (3) is provided between the second port of the high-pressure water-cooling fan (2) and the air inlet of the heat exchange unit and / or the oxygen supply inlet of the culture pond; an air outlet of the heat exchange unit is connected to the oxygen supply inlet of the culture pond (21) via an exhaust duct, and a No. 1 temperature sensor (7) is installed at the air outlet of the heat exchange unit; The sterilization mechanism comprises a gas processor (8); the gas inlet of the gas processor (8) is connected to the gas outlet of the heat exchange unit, the gas outlet of the gas processor (8) is connected to the oxygen supply inlet of the culture pond (21) through an exhaust pipe, and a second temperature sensor (12) is installed at the gas outlet of the gas processor (8); A refrigeration mechanism, comprising a condenser (10), a refrigeration compressor (13) and a cold water tank (15); a first port of the cold water tank (15) is connected to a water outlet of the high-pressure water-cooling fan (2); a second port of the cold water tank (15) is provided with a cold water circulation pump (14) and is connected to a water inlet of the heat exchange unit; a third port of the cold water tank (15) is connected to a refrigerant outlet of the condenser (10); a fourth port of the cold water tank (15) is connected to an inlet end of the refrigeration compressor (13); an outlet end of the refrigeration compressor (13) is connected to a refrigerant inlet of the condenser (10); a water outlet of the heat exchange unit is connected to a water inlet of the gas processor (8); and a water outlet of the gas processor (8) is connected to a water inlet of the high-pressure water-cooling fan (2); A PLC control unit, the PLC control unit (20) is electrically connected to the oxygen supply circulation mechanism, the sterilization mechanism and the refrigeration mechanism.

2. The automated and efficient aquaculture system according to claim 1, characterized in that: The heat exchange unit comprises an air heat exchanger (4), a gas-liquid separator (5) and an air purifier (6) which are arranged in sequence along the gas flow direction; the air heat exchanger (4) is used to cool the inflowing gas and generate a large amount of condensed water, the condensed water is separated by the gas-liquid separator (5), and the separated gas is purified by the air purifier (6) to generate a large amount of O2 gas; a drain valve (9) is provided at the bottom of the heat exchange unit, and the liquid after the condensed water is separated is discharged through the drain valve (9).

3. The automated and efficient aquaculture system according to claim 2, characterized in that: The gas-liquid separator (5) is a centrifugal gas-liquid separator, model KLJ-FLQ-380U.

4. The automated and efficient aquaculture system according to claim 2, characterized in that: The gas processor (8) is externally connected to a processor power supply (17); a plurality of dielectric electrodes (18) are transversely arranged in the gas processor (8), and hollow air passages (19) are arranged at both ends of the dielectric electrodes (18); O2 gas enters the gas processor (8) and reacts with the dielectric electrodes (18) to generate O3 gas, which enters the exhaust pipe through the hollow air passages (19) to aerate the culture pond (21).

5. The automated and efficient aquaculture system according to claim 4, characterized in that: The drain valve (9) is provided at the bottom of the gas processor (8).

6. The automated and efficient aquaculture system according to claim 5, characterized in that: The drain valve (9) is a stainless steel float type drain valve, model YA-S6.

7. The automated and efficient aquaculture system according to claim 1, characterized in that: The cold water tank (15) is provided with a liquid level meter, and the bottom of the cold water tank (15) is provided with an electric drain valve (16).

8. The automated and efficient aquaculture system according to claim 1, characterized in that: A water quality sensor is installed in the breeding pond (21) for real-time monitoring of water parameters and sending the water parameters to the PLC control unit (20); the water parameters include dissolved oxygen, ammonia nitrogen, nitrite, cyanobacteria, hydrogen sulfide and pH value.

9. An automated and efficient aquaculture method, based on the automated and efficient aquaculture system according to any one of claims 1 to 8, characterized in that: The steps include: 1) Natural oxygen supply: natural air is filtered through the air filter (1) and then enters the high-pressure water-cooling fan (2) for compression. The electric-controlled air valve (3) controls the gas flow to the culture pond (21) to aerate the water body and increase dissolved oxygen; 2) Supplying cooling oxygen: natural air is filtered through the air filter (1) and then enters the high-pressure water-cooling fan (2) for compression. The electrically controlled air valve (3) is used to control the gas flow to the heat exchange unit. The air heat exchanger (4) generates a large amount of condensed water after cooling the gas. The condensed water is separated by the gas-liquid separator (5). The separated liquid is discharged through the drain valve (9). The separated gas enters the air purifier (6). Harmful substances in the gas are removed in the air purifier (6). The first temperature sensor (7) is used to monitor the temperature of the purified gas and send the temperature information to the PLC control unit (20). The PLC control unit (20) controls the refrigeration mechanism to provide the air heat exchanger (4) with refrigerant of a set temperature, thereby cooling the gas. The cooled gas enters the culture pond (21) through the exhaust pipe to cool the water and supply oxygen. 3) Disinfection and sterilization: When the water parameters in the culture pond (21) exceed the set safety value, the PLC control unit (20) controls the start of the sterilization mechanism, the gas processor (8) is powered by an external power supply (17), and the gas is purified by the air purifier (6) to produce a large amount of O2 gas. The O2 gas enters the gas processor (8) and reacts with the dielectric electrode (18) to produce O3 gas, which enters the exhaust pipe through the hollow air channel (19) to aerate the culture pond (21). The second temperature sensor (12) is used to monitor the temperature of the O3 gas and control the gas temperature at 22°C; 4) Cold oxygen supply + disinfection and sterilization: The temperature of the O2 gas, i.e., the air inlet temperature of the gas processor (8), is monitored by the No. 1 temperature sensor (7). When the air inlet temperature is within the set temperature range, the gas processor (8) automatically turns on and performs disinfection and sterilization. The O3 gas, i.e., the air outlet temperature of the gas processor (8), is monitored by the No. 2 temperature sensor (12). When the air outlet temperature is within the set temperature range, the gas processor (8) continues to operate stably. When the air outlet temperature exceeds the set temperature range, the gas processor (8) automatically turns off. At this time, the high-pressure water-cooling fan (2) and the refrigeration mechanism operate to provide the air heat exchanger (4) with refrigerant of the set temperature, thereby cooling the gas. When the No. 2 temperature sensor (12) detects that the air outlet temperature is within the set temperature range, the gas processor (8) is turned on again.

10. The automated and efficient aquaculture method according to claim 9, characterized in that: The air inlet temperature of the gas processor (8) is set at 18-20°C, and the air outlet temperature is set at 22-24°C.

Images