Circulating water treatment equipment for freshwater fish culture pond

By combining filter cartridges, filter boxes, and disinfection tanks, multiple treatments of circulating water in freshwater fish farming ponds are achieved, solving the problem of poor water circulation in existing technologies and improving the protection of water purification and the healthy growth of fish.

CN224091741UActive Publication Date: 2026-04-07SHANGHAI SHANGDIE IND CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing technologies struggle to perform multiple treatments on the circulating water in freshwater fish farming ponds, resulting in poor water circulation and a cumbersome treatment process.

Method used

The device uses a combination of filter cartridges, filter boxes, disinfection tanks, and ozone generators. It intercepts large particles of impurities through filter screens, filters fine impurities through quartz sand filter layers, biological filler layers, and activated carbon adsorption layers, and kills harmful microorganisms with ozone, thus achieving multi-stage filtration and disinfection.

Benefits of technology

It improves water purification, effectively kills bacteria and viruses, ensures the healthy growth of fish, and enhances the efficiency and effectiveness of water circulation treatment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224091741U_ABST
    Figure CN224091741U_ABST
Patent Text Reader

Abstract

The utility model provides circulating water treatment equipment for a freshwater fish culture pond, which relates to the technical field of culture pond water treatment and comprises a filter tank, a culture pond body is arranged on one side of the filter tank, a filter cartridge is arranged on one side of the culture pond body, and a sealing cover is mounted at the top end of the filter cartridge. The bottom surface of the culture pond body fixedly communicates with a blow-off pipe, the end, away from the culture pond body, of the blow-off pipe penetrates through the sealing cover and extends into the sealing cover, a filter screen plate is installed on the inner ring of the filter cylinder, and a disinfection tank is arranged on one side of the filter box. According to the circulating water treatment equipment for the freshwater fish culture pond, through the quartz sand filter layer, the biological filler layer and the activated carbon adsorption layer in the filter box, finer particle impurities can be filtered out, harmful substances such as ammonia nitrogen in water can be decomposed through the microbial action, meanwhile, peculiar smell can be effectively adsorbed, and the water quality is improved. Then, the water quality purification effect is improved by utilizing multi-stage filtration, and the circulating treatment effect on the water body is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to a circulating water treatment device for freshwater fish farming ponds, belonging to the field of aquaculture pond water treatment technology. Background Technology

[0002] The aquaculture ponds mainly raise freshwater fish such as grass carp and black carp. Freshwater fish are rich in nutrients and are currently being farmed on a large scale. In order to recycle water resources, the circulating water needs to be treated during the aquaculture process so that it can be reused.

[0003] Chinese Patent No. CN220703261U discloses a circulating water treatment device for freshwater fish farming ponds. The device includes a treatment tank, a filtration system, and a cleaning system. The treatment tank has an opening at the top and an outlet. The treatment tank is hollow, and the cleaning system is located inside. It is equipped with a connecting block, a top cover, and a deodorizing filter. The deodorizing filter is fixedly connected to the bottom of the top cover, allowing it to remove odors from the water passing through the pond, resulting in cleaner water that is less prone to odor generation upon discharge.

[0004] However, the above-mentioned patent requires that the water in the aquaculture pond be injected into the treatment tank and then filtered to remove odors through a deodorizing filter. This method of water treatment is cumbersome and makes it difficult to perform multiple treatments, which reduces the effectiveness of water circulation. Therefore, we provide a circulating water treatment device for freshwater fish aquaculture ponds to solve the above problems. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a circulating water treatment device for freshwater fish farming ponds, with the specific technical solution as follows:

[0006] A circulating water treatment device for freshwater fish farming ponds includes a filter box, a farming pond body on one side of the filter box, a filter cylinder on one side of the farming pond body, a sealing cap on the top of the filter cylinder, a drain pipe fixedly connected to the bottom of the farming pond body, the end of the drain pipe away from the farming pond body passing through the sealing cap and extending into the interior of the sealing cap, a filter screen plate installed on the inner ring of the filter cylinder, a disinfection tank on one side of the filter box, an ozone generator installed on the upper surface of the disinfection tank, a circulating water pump installed on one side of the farming pond body, a pumping pipe connected to the input end of the circulating water pump, and one end of the pumping pipe passing through the disinfection tank and extending into the interior of the disinfection tank.

[0007] Preferably, the filter box includes a box body, the inner bottom wall of which is respectively equipped with a quartz sand filter layer, a biological filler layer and an activated carbon adsorption layer, and the upper surface of the box body is equipped with a sealing plate.

[0008] Preferably, the bottom surface of the filter cartridge is connected to a first connecting pipe, one side of the filter box is connected to a second connecting pipe, and the output end of the circulating water pump is connected to a discharge pipe.

[0009] Preferably, the output end of the ozone generator is connected to an exhaust pipe, one end of which passes through the disinfection tank and extends into the interior of the disinfection tank, and the bottom end of the exhaust pipe is connected to an exhaust spray disc.

[0010] Preferably, one end of the first connecting pipe passes through the filter box and extends into the interior of the filter box, and one end of the second connecting pipe passes through the disinfection tank and extends into the interior of the disinfection tank.

[0011] Preferably, the outer surface of the aquaculture pond is connected with a reinforcing support plate and a reinforcing block, and one side of the reinforcing support plate and one side of the reinforcing block are respectively connected to the bottom surface of the circulating water pump and the outer surface of the sewage pipe.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This circulating water treatment equipment for freshwater fish farming ponds uses a filter screen inside the filter cartridge to quickly intercept large feces and uneaten feed, preventing them from continuously decomposing and polluting the water. The quartz sand filter layer, biological filler layer, and activated carbon adsorption layer inside the filter box filter out even finer particulate impurities. Microorganisms decompose harmful substances such as ammonia nitrogen in the water and effectively absorb odors. This multi-stage filtration enhances water purification. The ozone generator, exhaust pipe, and exhaust spray disc work together to release ozone into the disinfection tank, effectively killing bacteria, viruses, and other harmful microorganisms, preventing the spread of diseases in the pond, ensuring the healthy growth of freshwater fish, and ultimately achieving multiple water treatment processes and improving the water circulation effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention viewed from the front;

[0015] Figure 2 This is a side sectional view of the present invention;

[0016] Figure 3 This is a side sectional view of the disinfection tank of this utility model;

[0017] Figure 4 This is a frontal sectional view of the filter box of this utility model.

[0018] Attached Figure Descriptions: 1. Filter Box; 101. Box Body; 102. Quartz Sand Filter Layer; 103. Biological Packing Layer; 104. Activated Carbon Adsorption Layer; 105. Sealing Plate; 2. Aquaculture Pond; 3. Filter Cylinder; 4. Sewage Discharge Pipe; 5. Sealing Cover; 6. Filter Screen; 7. First Connecting Pipe; 8. Second Connecting Pipe; 9. Disinfection Tank; 10. Ozone Generator; 11. Pumping Pipe; 12. Circulating Water Pump; 13. Discharge Pipe; 14. Reinforcing Support Plate; 15. Exhaust Pipe; 16. Exhaust Spray Plate; 17. Reinforcing Block. Detailed Implementation

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model discloses a circulating water treatment device for freshwater fish farming ponds, comprising a filter box 1, a farming pond 2 on one side of the filter box 1, a filter cylinder 3 on one side of the farming pond 2, a sealing cover 5 installed at the top of the filter cylinder 3, a drain pipe 4 fixedly connected to the bottom of the farming pond 2, the end of the drain pipe 4 away from the farming pond 2 passing through the sealing cover 5 and extending into the interior of the sealing cover 5, a filter screen 6 installed on the inner ring of the filter cylinder 3, a disinfection tank 9 on one side of the filter box 1, and an ozone generator 10 installed on the upper surface of the disinfection tank 9. The ozone generator 10 decomposes and recombines oxygen molecules in the air to form ozone molecules through high-voltage discharge or ultraviolet irradiation. A circulating water pump 12 is installed on one side of the aquaculture tank 2. The input end of the circulating water pump 12 is connected to a water suction pipe 11. One end of the water suction pipe 11 passes through the disinfection tank 9 and extends into the interior of the disinfection tank 9. The water inside the disinfection tank 9 is extracted by the circulating water pump 12 and the water suction pipe 11 and discharged back to the aquaculture tank 2 through the discharge pipe 13, realizing the recycling of water resources, reducing water waste, and lowering aquaculture costs.

[0022] Preferably, the filter box 1 includes a box body 101. A quartz sand filter layer 102, a biological filler layer 103, and an activated carbon adsorption layer 104 are respectively installed on the inner bottom wall of the box body 101. A sealing plate 105 is installed on the upper surface of the box body 101. The sealing plate 105 is installed on the top of the box body 101 by a sealing gasket, preventing water leakage. A first connecting pipe 7 is connected to the bottom surface of the filter cylinder 3, and a second connecting pipe 8 is connected to one side of the filter box 1. A discharge pipe 13 is connected to the output end of the circulating water pump 12. One end of the first connecting pipe 7 penetrates the filter box 1 and extends into the interior of the filter box 1. One end of the second connecting pipe 8 passes through the disinfection tank 9 and extends into the interior of the disinfection tank 9. Through the quartz sand filter layer 102, the biological packing layer 103 and the activated carbon adsorption layer 104, a variety of filter components can be formed. In addition, the biological packing layer 103 is filled with biological packing material, providing a place for microorganisms to attach and grow. Through the decomposition of microorganisms, harmful substances such as ammonia nitrogen and nitrite in the water are converted into harmless nitrates, etc., to achieve the purpose of purifying water quality. Through the second connecting pipe 8 and the first connecting pipe 7, the circulating water can be circulated, which is convenient for its circulating purification treatment.

[0023] Preferably, the output end of the ozone generator 10 is connected to an exhaust pipe 15. One end of the exhaust pipe 15 passes through the disinfection tank 9 and extends into the interior of the disinfection tank 9. The bottom end of the exhaust pipe 15 is connected to an exhaust spray plate 16. The outer surface of the aquaculture tank 2 is respectively connected to a reinforcing support plate 14 and a reinforcing block 17. One side of the reinforcing support plate 14 and one side of the reinforcing block 17 are respectively connected to the bottom surface of the circulating water pump 12 and the outer surface of the sewage pipe 4. Through the reinforcing support plate 14 and the reinforcing block 17, the circulating water pump 12 and the sewage pipe 4 can be reinforced respectively, ensuring the stability of the equipment during long-term operation. The exhaust pipe 15 and the exhaust spray plate 16 can make the ozone emission in the disinfection tank 9 more uniform.

[0024] The working principle of this utility model is as follows: First, water from the breeding pond flows into the filter cylinder 3 through the sewage pipe 4. The filter screen 6 filters out feces and uneaten feed in the water. Then, the water flows into the filter box 1 through the first connecting pipe 7. The internal quartz sand filter layer 102, biological filler layer 103, and activated carbon adsorption layer 104 further filter out fine impurities and adsorb odors. Then, the water flows into the disinfection tank 9 through the second connecting pipe 8. The ozone generator 10 releases ozone into the water through the exhaust pipe 15 and exhaust spray plate 16. Ozone has strong oxidizing properties and can effectively kill bacteria, viruses, and other harmful microorganisms in the water. After disinfection, the water is pumped by the circulating water pump 12 and the water suction pipe 11 and discharged back into the breeding pond through the discharge pipe 13, completing the entire circulating water treatment process.

[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0027] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. A circulating water treatment device for freshwater fish farming ponds, comprising a filter box (1), characterized in that: A breeding tank (2) is provided on one side of the filter box (1), and a filter cylinder (3) is provided on one side of the breeding tank (2). A sealing cover (5) is installed on the top of the filter cylinder (3). A sewage pipe (4) is fixedly connected to the bottom surface of the breeding tank (2). The end of the sewage pipe (4) away from the breeding tank (2) passes through the sealing cover (5) and extends into the interior of the sealing cover (5). A filter screen plate (6) is installed on the inner ring of the filter cylinder (3). A disinfection tank (9) is provided on one side of the filter box (1). An ozone generator (10) is installed on the upper surface of the disinfection tank (9). A circulating water pump (12) is installed on one side of the breeding tank (2). A water pump (11) is connected to the input end of the circulating water pump (12). One end of the water pump (11) passes through the disinfection tank (9) and extends into the interior of the disinfection tank (9).

2. The circulating water treatment equipment for freshwater fish farming ponds according to claim 1, characterized in that: The filter box (1) includes a box body (101), and the inner bottom wall of the box body (101) is respectively equipped with a quartz sand filter layer (102), a biological filler layer (103) and an activated carbon adsorption layer (104), and a sealing plate (105) is installed on the upper surface of the box body (101).

3. The circulating water treatment equipment for freshwater fish farming ponds according to claim 1, characterized in that: The bottom surface of the filter cylinder (3) is connected to the first connecting pipe (7), one side of the filter box (1) is connected to the second connecting pipe (8), and the output end of the circulating water pump (12) is connected to the discharge pipe (13).

4. The circulating water treatment equipment for freshwater fish farming ponds according to claim 1, characterized in that: The output end of the ozone generator (10) is connected to an exhaust pipe (15), one end of which passes through the disinfection tank (9) and extends into the interior of the disinfection tank (9), and the bottom end of the exhaust pipe (15) is connected to an exhaust spray plate (16).

5. A circulating water treatment device for freshwater fish farming ponds according to claim 3, characterized in that: One end of the first connecting pipe (7) passes through the filter box (1) and extends into the interior of the filter box (1), and one end of the second connecting pipe (8) passes through the disinfection tank (9) and extends into the interior of the disinfection tank (9).

6. The circulating water treatment equipment for freshwater fish farming ponds according to claim 1, characterized in that: The outer surface of the aquaculture pond (2) is respectively connected to a reinforcing support plate (14) and a reinforcing block (17). One side of the reinforcing support plate (14) and one side of the reinforcing block (17) are respectively connected to the bottom surface of the circulating water pump (12) and the outer surface of the sewage pipe (4).

Citation Information

Patent Citations

  • Circulating water treatment equipment for freshwater fish culture pond

    CN220703261U