Accurate and efficient ozone disinfecting and killing system applied to recirculating aquaculture system
By accurately adding and controlling the ozone content in multiple nodes in the circulating water aquaculture system, the disinfection problem of circulating water system is solved, and the purification and sterilization of full coverage is achieved, which improves the efficiency and safety of the system.
Patent Information
- Application Number
- CN202422187325.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-06
AI Technical Summary
When facing the invasion of pathogenic microorganisms, the circulating water breeding system has the problem that it is difficult to disinfect and the strong oxidation of the disinfectant may lead to equipment damage, and the prior art is difficult to achieve full-range purification and sterilization.
In the circulating water treatment system, the ozone content is accurately added and controlled by multiple nodes. The ozone content is accurately added to each link through an ozone generator and a special ozone access mechanism. Combined with the ozone concentration monitoring device, the ozone concentration is monitored to ensure the uniform distribution and safe concentration of ozone in the water body, and the high-pressure self-priming pump and jet device are used to achieve full dissolution and mixing of ozone.
It has achieved full coverage of the water treatment process, accurately and safely purify water bodies and sterilize, eliminate sterilization dead corners, and improve the breeding success rate of the circulating water system, while not affecting the growth performance of the breeding objects.
Smart Images
Figure CN223110851U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water treatment in aquaculture, in particular to an ozone precise and efficient disinfection system applied to a recirculating aquaculture system. Background Art
[0002] In recent years, to promote the transformation of China's aquaculture industry towards green and high-quality development, the government has encouraged innovative aquaculture models and established and improved the mechanisms for recycling and pollution control of aquaculture resources. The recirculating aquaculture system can achieve high yields per unit volume of water far exceeding the stocking density of traditional aquaculture models, with water consumption reduced by 90 - 99% compared to traditional models. At the same time, due to the airtightness of its aquaculture space, it can effectively maintain the stability of the aquaculture environment and minimize the use of chemical agents, aiming to achieve the efficient, green, and sustainable comprehensive utilization of natural resources.
[0003] As a strong oxidant, disinfectant, and catalyst, ozone has not only been widely used in the medical industry. Practice has proven that ozone has also been successfully applied in the fields of water disinfection, water quality improvement, prevention of diseases in aquaculture systems, and red tide detoxification. Through the ozone sterilization device, biological eggs can be disinfected, aquaculture water can be sterilized, and facilities can be disinfected, preventing the invasion of pathogens. Ozone and its decomposition products in water can also decompose organic substances and colloidal substances that are difficult to break down, generating non-toxic aldehydes, carboxylic acids, and aromatic compounds, thereby significantly reducing the chemical oxygen demand (COD) of organic substances and reducing the harm of organic substances and colloidal substances to aquaculture animals. Moreover, it is non-toxic and harmless, and is the most ideal sterilization and purification agent in aquaculture and seedling production, which is of great significance for preventing biological diseases such as fish, shrimp, sea urchins, river crabs, soft-shelled turtles, etc., and improving the ecological environment of aquaculture.
[0004] However, as a modern intensive aquaculture model, the design of the recirculating water system is more complex and delicate. A single recirculating aquaculture system often has multiple functional units. However, once the system is invaded by pathogenic microorganisms, there are often many cleaning dead ends in the complex pipeline design, and the strong oxidizing and corrosive properties of most disinfectants will cause irreversible damage to the equipment, which greatly increases the disinfection difficulty of the system. Summary of the Utility Model
[0005] The utility model aims to provide an ozone precise and efficient disinfection system applied to a recirculating aquaculture system, precisely adding and controlling the ozone content at multiple nodes in the process of the circulating water treatment system, achieving full-range coverage of ozone in the water treatment process, precisely and safely purifying the water body and sterilizing and disinfecting, without affecting the growth performance of the aquaculture objects, and improving and ensuring the success rate of aquaculture in the recirculating water system.
[0006] To achieve the above invention purpose, the technical solution of the utility model is as follows:
[0007] An ozone precise and efficient disinfection system applied to a recirculating aquaculture system, comprising a microfilter tank, a protein skimmer, a biochemical tank, a clear water tank, an ultraviolet disinfection tank and a culture tank connected in sequence. The inlet of the microfilter tank is connected with a fresh water replenishment pipeline, and the culture tank is connected with the inlet of the microfilter tank through a bottom drain pipeline. Ozone adding devices are respectively arranged on the bottom drain pipeline, the protein skimmer and the clear water tank, and ozone concentration monitoring devices are respectively arranged at the inlet of the microfilter tank, the outlet of the protein skimmer and the inlet of the culture tank.
[0008] The ozone adding device comprises an ozone generator and an ozone introducing mechanism. The ozone generator is connected with the bottom drain pipeline, the protein skimmer and the clear water tank respectively through the ozone introducing mechanism.
[0009] The ozone introducing mechanism of the bottom drain pipeline comprises a jet pump I and a venturi tube I. The inlet section of the venturi tube I is connected with the jet pump I, the diffuser section of the venturi tube I is connected with the bottom drain pipeline, and the throat of the venturi tube I is connected with the ozone generator;
[0010] The bottom drain pipeline is also provided with a bypass pipeline. The two ends of the bypass pipeline are respectively connected with the inlet section and the diffuser section of the venturi tube I, and a flow regulating valve is arranged on the bypass pipeline.
[0011] The ozone introducing mechanism of the protein skimmer comprises a jet pump II and a venturi tube II. The venturi tube II is arranged inside the protein skimmer. The inlet section of the venturi tube II is connected with the jet pump II, and the throat of the venturi tube II is connected with the ozone generator through an ozone delivery pipeline;
[0012] The ozone delivery pipeline is provided with a branch pipe inside the protein skimmer. One end of the branch pipe is connected with the ozone delivery pipeline, and an ozone detection valve is arranged at the other end of the branch pipe; A backflow prevention device is arranged on the ozone delivery pipeline in the protein skimmer, and a suction detection valve is arranged between the backflow prevention device and the ozone generator.
[0013] The ozone introducing mechanism of the clear water tank is a titanium aeration pipe, and the titanium aeration pipe is arranged inside the clear water tank and is connected with the ozone generator.
[0014] The beneficial effects of the utility model:
[0015] 1. In the present utility model, since ozone is easily decomposed into oxygen in water, it can not only play a role in sterilization and disinfection, but also increase the oxygen content in the water body. During the process of purifying water quality, ozone will not change the original components in the water and can maintain the minerals beneficial to aquatic animals contained in the water. While purifying the water source, ozone can also reduce the number of bacteria in the animal intestine that live on the host's nutrition, reduce the nutritional consumption of bacteria, enhance the activity of amylase secreted by beneficial bacteria, improve the utilization effect of animal food nutrients, and promote the healthy growth of animals. Ozone purifies the water quality through oxidation and flocculation, and will not produce secondary pollutants. The oxides generated during the disinfection process are non-toxic, odorless and biodegradable substances.
[0016] 2. In the present utility model, ozone can maintain a certain effective sterilization concentration in the water body. Along with the water body flow, it covers the entire water treatment link, and can effectively disinfect various dead corners or sites that cannot be disinfected by physical and chemical methods in the circulating water system, eliminate the sterilization dead corners, and be more thorough and efficient.
[0017] 3. In the present utility model, in view of the fact that high-concentration ozone will affect metal equipment, bacteria responsible for N conversion in the biochemical pool, and breeding objects, multi-point detection can effectively control the ozone concentration at different sites, and while effectively improving the water environment and killing pathogenic bacteria, it can ensure biological safety.
[0018] 4. In the present utility model, a high-pressure self-priming pump and a jet injector are used to introduce ozone into the protein skimmer, form a high-pressure mixture inside it, realize the full dissolution of ozone, and at the same time detect the ozone concentration at the outlet of the protein skimmer, and control the ozone concentration by adjusting the gas output of the ozone generator to achieve precise and safe disinfection.
[0019] 5. In the present utility model, during the process of circulating water treatment, the clear water tank is a buffer tank before the treated water enters the breeding pond for reuse, used to adjust the balance of the circulating volume and maintain the area where the water body of the system circulates continuously without interruption. In this area, the water level is relatively deep (generally greater than 2m), and ozone is directly aerated into the water body through titanium aeration stones, and then through the synergistic effect of ultraviolet sterilization, it flows through the circulating return water pipeline and enters the breeding pond for reuse.
[0020] 6. In the present utility model, inside the bottom drain pipeline of the breeding pond, a high-pressure self-priming pump and a jet injector are used to introduce ozone into the bottom drain pipeline of the breeding pond. Through the long-distance pipeline mixing, ozone can accurately remove the dirt, organic matter and pathogenic bacteria contained in the bottom drain water. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic structural diagram of the precise and efficient ozone disinfection system of the present utility model.
[0022] Figure 2This is a schematic structural diagram of the protein separator of the present utility model.
[0023] Figure 3 This is a schematic structural diagram of the clear water tank of the present utility model.
[0024] Figure 4 This is a schematic structural diagram of the bottom drain pipe of the present utility model.
[0025] Among them, 1. Microfiltration machine tank; 2. Protein separator; 3. Biochemical tank; 4. Clear water tank; 5. Ultraviolet sterilization tank; 6. Aquaculture pond; 7. Ozone addition device; 8. Ozone concentration monitoring device; 9. Bottom drain pipe; 10. Jet pump I; 11. Venturi tube I; 12. Bypass pipe; 13. Flow regulating valve; 14. Jet pump II; 15. Venturi tube II; 16. Backflow preventer; 17. Suction detection valve; 18. Ozone detection valve; 19. Titanium aeration pipe. Specific embodiments
[0026] The following further describes the present utility model in detail in conjunction with embodiments, but the embodiments of the present utility model are not limited thereto.
[0027] Embodiment 1
[0028] This embodiment provides an ozone precise and efficient disinfection system applied to a recirculating aquaculture system as shown in Figure 1 , which includes a microfiltration machine tank 1, a protein separator 2, a biochemical tank 3, a clear water tank 4, an ultraviolet sterilization tank 5 and an aquaculture pond 6 connected in sequence. A fresh water replenishment pipe is connected to the inlet of the microfiltration machine tank 1. The aquaculture pond 6 is connected to the inlet of the microfiltration machine tank 1 through a bottom drain pipe 9. Ozone addition devices 7 are respectively arranged on the bottom drain pipe 9, the protein separator 2 and the clear water tank 4. Ozone concentration monitoring devices 8 are respectively arranged at the water inlet of the microfiltration machine tank 1, the water outlet of the protein separator 2 and the water inlet of the aquaculture pond 6.
[0029] In this embodiment, ozone is introduced into the protein separator 2 to form high-pressure mixing inside it to achieve full dissolution of ozone. At the same time, the ozone concentration is detected at the water outlet of the protein separator 2, and the ozone concentration is controlled by adjusting the gas output of the ozone generator to achieve precise and safe disinfection. The clear water tank 4 is a buffer tank before the treated water enters the aquaculture pond 6 for reuse, used to adjust the circulation volume balance and maintain the continuous circulation of the system water body without interruption. In this area, the water level is relatively deep (generally greater than 2m). By adding ozone into the water body, and then through the synergistic effect of ultraviolet sterilization, it flows through the circulating return water pipe and enters the aquaculture pond 6 for reuse. Ozone is introduced into the bottom drain pipe 9 of the aquaculture pond 6, and the ozone can be precisely removed of the dirt, organic matter and pathogenic bacteria contained in the bottom drain water through long-distance pipeline mixing.
[0030] In this embodiment, ozone concentration monitoring devices 8 are respectively arranged at the water inlet of the microfiltration machine tank 1, the water outlet of the protein separator 2, and the water inlet of the aquaculture pond 6. The ozone concentration monitoring device 8 monitors the ozone concentration at the water inlet of the microfiltration machine tank 1, the water outlet of the protein separator 2, and the water inlet of the aquaculture pond 6 in real time, so that the ozone concentration at the water inlet of the microfiltration machine tank 1 ≤ 1.5 mg / l; the ozone concentration at the water outlet of the protein separator 2 ≤ 1.0 mg / l; the ozone concentration at the water inlet of the aquaculture pond 6 ≤ 0.15 mg / l; meeting the requirements of the local standard "Technical Regulations for Recirculating Water Shrimp Aquaculture Water Treatment DB21 / T 3570-2022" issued by Liaoning Province. When the ozone concentration is too high or too low, the ozone concentration is adjusted by adjusting the ozone input amount, realizing ozone concentration detection and control.
[0031] Example 2
[0032] Compared with Example 1, the difference in this embodiment is that, in this embodiment, as Figure 2 shown, the ozone addition device 7 includes an ozone generator and an ozone introduction mechanism. The ozone generator is respectively connected to the bottom drain pipe 9, the protein separator 2, and the clear water tank 4 through the ozone introduction mechanism. The remaining structure is the same as that in Example 1.
[0033] In this embodiment, the ozone generator is respectively connected to the bottom drain pipe 9, the protein separator 2, and the clear water tank 4 through the ozone introduction mechanism. The ozone generated by the ozone generator is introduced into the inside of the bottom drain pipe 9, the protein separator 2, and the clear water tank 4, realizing full-range coverage of ozone in the water treatment process, and accurately and safely playing the role of purifying water body and sterilizing.
[0034] Example 3
[0035] Compared with Example 2, the difference in this embodiment is that, in this embodiment, the ozone introduction mechanism of the bottom drain pipe 9 includes a jet pump I10 and a Venturi tube I11. The inlet section of the Venturi tube I11 is connected to the jet pump I10, the diffuser section of the Venturi tube I11 is connected to the bottom drain pipe 9, and the throat of the Venturi tube I11 is connected to the ozone generator; a bypass pipe 12 is also arranged on the bottom drain pipe 9, and both ends of the bypass pipe 12 are respectively connected to the inlet section and the diffuser section of the Venturi tube I11, and a flow regulating valve 13 is arranged on the bypass pipe 12. The remaining structure is the same as that in Example 2.
[0036] In this embodiment, ozone enters through the throat of the Venturi tube I11, and after being mixed with the water body of the jet pump I10, the gas-liquid mixture is transported to the circulating water return pipe at the tail of the aquaculture workshop; the bypass valve is connected to both ends of the Venturi tube I11 for flow control to ensure the mixing effect and flow regulation.
[0037] Example 4
[0038] This embodiment is different from Embodiment 2 in that, in this embodiment, as Figure 3 shown, the ozone inlet mechanism of the protein separator 2 includes a jet pump II 14 and a Venturi tube II 15. The Venturi tube II 15 is arranged inside the protein separator 2. The inlet section of the Venturi tube II 15 is connected to the jet pump II 14, and the throat of the Venturi tube II 15 is connected to the ozone generator through an ozone delivery pipeline. A branch pipe is arranged inside the protein separator 2 on the ozone delivery pipeline. One end of the branch pipe is connected to the ozone delivery pipeline, and an ozone detection valve 18 is arranged at the other end of the branch pipe. An anti-backflow device 16 is arranged on the ozone delivery pipeline of the protein separator 2, and a suction detection valve 17 is arranged between the anti-backflow device 16 and the ozone generator. The rest of the structure is the same as that of Embodiment 2.
[0039] In this embodiment, ozone is transported through a pipeline to the anti-backflow device 16, and then through a pipeline to the throat of the Venturi tube II 15. The water flow of the jet pump II 14 is introduced through the inlet section of the Venturi tube II 15 and then fully mixed through the Venturi tube II 15, and is transported to the protein separator to remove suspended proteins and organic substances in the water. The anti-backflow device 16 prevents gas from flowing back to ensure unidirectional transportation.
[0040] In this embodiment, the ozone detection valve 18 is used to monitor whether the gas introduced is ozone instead of air. The suction detection valve 17 is used to detect whether there is suction in the ozone delivery pipeline, and to detect whether ozone can be normally introduced into the Venturi tube to mix with the water flow. The ozone detection valve 18 and the suction detection valve 17 effectively verify whether ozone gas can enter the Venturi tube and achieve efficient and uniform mixing with the water flow, ensuring the efficiency and safety of ozone application in the subsequent treatment process.
[0041] Embodiment 5
[0042] This embodiment is different from Embodiment 2 in that, in this embodiment, as Figure 4 shown, the ozone inlet mechanism of the clear water tank 4 is a titanium aeration pipe 19. The titanium aeration pipe 19 is arranged inside the clear water tank 4 and is connected to the ozone generator. The rest of the structure is the same as that of Embodiment 2.
[0043] In this embodiment, ozone is transported through a pipeline to the clear water tank 4 of the biochemical tank 3, and ozone is injected into the clear water tank 4 through the titanium alloy aeration pipe for aeration and water quality treatment. The ultraviolet sterilizer is installed in the clear water tank 4 to control the ozone concentration, ensure that the ozone concentration in the water body entering the aquaculture tank 6 is within a safe range, and further kill the germs in the water body.
[0044] It can be understood that the present utility model is described by means of some embodiments. Those skilled in the art will be aware that, without departing from the spirit and scope of the present utility model, various changes or equivalent substitutions can be made to these features and embodiments. Additionally, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.
Claims
1. An ozone precise and efficient disinfection system applied to a recirculating aquaculture system, characterized in that: It includes a microfiltration machine pool (1), a protein separator (2), a biochemical pool (3), a clear water pool (4), an ultraviolet sterilization pool (5) and a culture pool (6) connected in sequence. The inlet of the microfiltration machine pool (1) is connected with a fresh water replenishment pipeline. The culture pool (6) is connected with the inlet of the microfiltration machine pool (1) through a bottom drain pipeline (9). Ozone addition devices (7) are respectively arranged on the bottom drain pipeline (9), the protein separator (2) and the clear water pool (4). Ozone concentration monitoring devices (8) are respectively arranged at the water inlet of the microfiltration machine pool (1), the water outlet of the protein separator (2) and the water inlet of the culture pool (6).
2. The ozone precise and efficient disinfection and sterilization system according to claim 1, wherein: The ozone addition device (7) includes an ozone generator and an ozone introduction mechanism. The ozone generator is respectively connected with the bottom drain pipeline (9), the protein separator (2) and the clear water pool (4) through the ozone introduction mechanism.
3. The ozone precise and efficient disinfection and sterilization system according to claim 2, wherein: The ozone introduction mechanism of the bottom drain pipeline (9) includes a jet pump I (10) and a Venturi tube I (11). The inlet section of the Venturi tube I (11) is connected with the jet pump I (10). The diffuser section of the Venturi tube I (11) is connected with the bottom drain pipeline (9). The throat of the Venturi tube I (11) is connected with the ozone generator.
4. The ozone precise and efficient disinfection and sterilization system according to claim 3, characterized in that: The bottom drain pipeline (9) is also provided with a bypass pipeline (12). The two ends of the bypass pipeline (12) are respectively connected with the inlet section and the diffuser section of the Venturi tube I (11). A flow regulating valve (13) is arranged on the bypass pipeline (12).
5. The ozone precise and efficient disinfection and sterilization system according to claim 2, wherein: The ozone introduction mechanism of the protein separator (2) includes a jet pump II (14) and a Venturi tube II (15). The Venturi tube II (15) is arranged inside the protein separator (2). The inlet section of the Venturi tube II (15) is connected with the jet pump II (14). The throat of the Venturi tube II (15) is connected with the ozone generator through an ozone delivery pipeline.
6. The ozone precise and efficient disinfection and sterilization system according to claim 5, wherein: The ozone delivery pipeline is provided with branch pipes inside the protein separator (2). One end of the branch pipe is connected with the ozone delivery pipeline, and an ozone detection valve (18) is arranged at the other end of the branch pipe. An anti-backflow device (16) is arranged on the ozone delivery pipeline in the protein separator (2). A suction detection valve (17) is arranged between the anti-backflow device (16) and the ozone generator.
7. The ozone precise and efficient disinfection and sterilization system according to claim 2, wherein: The ozone introduction mechanism of the clear water pool (4) is a titanium aeration pipe (19). The titanium aeration pipe (19) is arranged inside the clear water pool (4). The titanium aeration pipe (19) is connected with the ozone generator.