Water purification and circulation equipment for aquaculture

By combining a primary filter box and multiple filtration components with a sodium bicarbonate storage and mixing tank, the problem of existing equipment being unable to effectively remove harmful substances from water is solved, achieving multiple purification and stability of water quality and providing a healthy aquaculture environment.

CN223866496UActive Publication Date: 2026-02-03HUAIBEI GOLDEN MANDARIN LAKE AQUACULTURE CO LTD
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Patent Information

Application Number
CN202520348920.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-02-03
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Existing aquaculture water purification and circulation equipment only performs single filtration, which cannot effectively remove harmful substances such as ammonia nitrogen and nitrite from the water, resulting in an unhealthy and unstable aquaculture environment.

Method used

The system employs a primary filter box combined with multiple filtration components and a sodium bicarbonate storage and mixing tank. The primary filter box filters out undigested fertilizer and excrement, while sodium bicarbonate is used to adjust the pH value and eliminate harmful substances. Combined with multiple filtration methods using activated carbon plates and square filter plates, it achieves multiple purification effects.

Benefits of technology

It significantly improves water quality, provides a healthy and stable aquaculture environment, effectively removes harmful substances such as ammonia nitrogen and nitrite, and ensures the safety of the growth environment for aquaculture organisms.

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Abstract

The utility model relates to the technical field of water purification, in particular to aquaculture water purification and circulation equipment which comprises an aquaculture box, a primary filter box, a waste collecting frame, a sodium hydrocarbon acid storage stirring tank, a water conveying assembly, a cleaning assembly and a filter assembly. One end of the water conveying assembly penetrates through the surface of the aquaculture box body and is tightly attached to the inner surface of the aquaculture box body, the top of the primary filtering box is fixedly connected with the surface of the cleaning assembly, the cleaning assembly is arranged above the filtering assembly, and the sodium hydrocarbon acid storage stirring tank is arranged on the outer side of the primary filtering box. According to the water purifying and circulating equipment for aquaculture, undigested fertilizer and excrement of cultured objects are filtered out through the primary filter box, and then circulating filtration of the filter assembly is combined, the PH value of water is adjusted through the sodium hydrogen carbonate storage stirring tank, and harmful substances are eliminated; the multi-purification effect is achieved, and harmful substances such as ammonia nitrogen and nitrite in water are eliminated.
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Description

Technical Field

[0001] This application relates to the field of water purification technology, and in particular to a water purification and recycling device for aquaculture. Background Technology

[0002] Aquaculture is an important part of agricultural production, and modern aquaculture is becoming increasingly intensive. This requires the use of aquaculture equipment, which can greatly increase the survival rate of aquatic products and significantly reduce the workload of aquaculture workers.

[0003] A search revealed that CN220597166U discloses a water purification and circulation device for aquaculture. A water pump draws water, along with impurities, from the aquaculture tank into the purification tank above the partition. Flocculant is added through the inlet, and a motor is started to rotate the stirring shaft on the outside of the rotating shaft, allowing the flocculant to fully mix with the water. The reaction is observed through an observation window. The water, after reacting with the flocculant, is then discharged through a second outlet pipe. After being filtered by a filter screen and an activated carbon filter, the water flows to the top of a guide plate. The inclined guide plate, in conjunction with the first outlet pipe, directly guides the water into the interior of the aquaculture tank. Both the filter screen and the activated carbon filter can be removed from the front of the purification tank for cleaning.

[0004] Regarding the aforementioned technologies, the inventors believe that the following technical defects exist that need improvement: This device only performs single filtration on the aquaculture water. Although activated carbon, a substance with strong adsorption, is used, harmful substances such as ammonia nitrogen and nitrite in the water only pass through the activated carbon once. Under these conditions, ammonia nitrogen and nitrite in the water cannot be fully removed, thus failing to provide a healthy and stable growth environment for the aquaculture organisms. Utility Model Content

[0005] This application provides an aquaculture water purification and circulation device to improve the following technical problems: The above-mentioned device only performs single filtration of aquaculture water. Although activated carbon, a substance with strong adsorption, is used, harmful substances such as ammonia nitrogen and nitrite in the water only pass through the activated carbon once. Under this condition, ammonia nitrogen and nitrite in the water cannot be fully removed, thus failing to provide a healthy and stable growth environment for aquaculture organisms.

[0006] This application provides a water purification and recycling device for aquaculture, which adopts the following technical solution:

[0007] A water purification and recycling device for aquaculture includes an aquaculture tank, a primary filter box, a waste collection frame, a sodium bicarbonate storage and stirring tank, a water conveying component, a cleaning component, and a filtration component. One end of the water conveying component penetrates the surface of the aquaculture tank and is tightly fitted to the inner surface of the aquaculture tank. The top of the primary filter box is fixedly connected to the surface of the cleaning component. The cleaning component is positioned above the filtration component. The filtration component is installed inside the primary filter box. The waste collection frame is positioned below the discharge end of the primary filter box. The sodium bicarbonate storage and stirring tank is positioned outside the primary filter box.

[0008] The aquaculture tank is used to store purified water for aquaculture. The primary filter box is used to filter undigested fertilizer and excrement from the aquaculture plants in the water. The waste collection frame is used to collect waste discharged from the primary filter box. The sodium bicarbonate storage and stirring tank is used to adjust the pH value of the aquaculture water and eliminate harmful substances in the water. The water supply assembly is used to circulate and supply purified water to the inside of the aquaculture tank. The cleaning assembly is used to clean the surface waste of the filter assembly. The filter assembly is used to circulate and filter the water introduced into the primary filter box.

[0009] In one feasible technical solution of this application, the water supply assembly includes a first water pump, a water supply pipe, a second water pump, a multi-head drain pipe, a circulation pump, and a backflow pipe. The first water pump is installed on one side of the water supply pipe, and the top side of the water supply pipe is in close contact with the surface of the primary filter box. The second water pump is installed on the output end side of the multi-head drain pipe, and the top of the multi-head drain pipe penetrates the top of the sodium bicarbonate storage and mixing tank and is in close contact with the inner wall surface of the sodium bicarbonate storage and mixing tank. The circulation pump is installed on one side of the backflow pipe, and the two ends of the backflow pipe are in close contact with the bottom surface of the sodium bicarbonate storage and mixing tank and the bottom surface of the aquaculture tank, respectively.

[0010] In one feasible technical solution of this application, the cleaning assembly includes a fixed frame, a pusher frame, a stepper motor, a locking gear, a connecting frame, and a cleaning roller. The fixed frame is installed on the top of the primary filter box, the pusher frame is slidably sleeved on the outside of the fixed frame, the stepper motor is installed on the top of the pusher frame, the locking gear is fixedly connected to the outside of the output end of the stepper motor, the connecting frame is installed on the bottom of the pusher frame, and the cleaning roller is rotatably connected to the bottom of the connecting frame and is used to fully contact the filter assembly.

[0011] In one feasible technical solution of this application, the filter assembly includes a square filter plate and an activated carbon plate. The square filter plate is threadedly connected to the inside of the primary filter box, and the activated carbon plates are arranged at equal intervals in the primary filter box below the square filter plate.

[0012] In one feasible technical solution of this application, a DC motor, a corrosion-resistant shaft, and a stirring rod are further provided in the middle of the sodium bicarbonate storage and stirring tank. The DC motor is installed at the top center of the sodium bicarbonate storage and stirring tank, the corrosion-resistant shaft is fixedly connected below the output end of the DC motor, and the stirring rod is welded and fixed to the outer wall surface of the corrosion-resistant shaft.

[0013] In one feasible technical solution of this application, the inner side of the fixed frame is further provided with an embedded rack that meshes with the outer teeth of the locking gear.

[0014] In one feasible technical solution of this application, the fixing frame is provided in two sets, and the two sets of fixing frames are symmetrically arranged on the top of the primary filter box.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] This equipment first filters out undigested fertilizer and aquatic excrement through a primary filter box. Then, combined with the circulating filtration of the filter components and the adjustment of water pH and elimination of harmful substances by the sodium bicarbonate storage and mixing tank, it achieves multiple purification effects, significantly improving water quality and providing a healthier and more stable growth environment for aquatic organisms. By adding sodium bicarbonate to the storage and mixing tank, using the formula: required sodium bicarbonate mass (grams) = water volume (liters) × target concentration (mg / L) ÷ 1000, it not only adjusts the water pH but also helps eliminate harmful substances such as ammonia nitrogen and nitrite in the water. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the aquaculture water purification and circulation equipment according to an embodiment of this application.

[0019] Figure 2 This is a top side view of the primary filter box in an embodiment of this application.

[0020] Figure 3 This is a schematic diagram of the cleaning component in an embodiment of this application.

[0021] Figure 4 This is a schematic diagram of the structure of the filtering component in the embodiments of this application.

[0022] Figure 5 This is a cross-sectional view of the sodium bicarbonate storage tank in an embodiment of this application.

[0023] Figure 6 This is an embodiment of the present application. Figure 3 Enlarged view of point A in the middle.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Aquaculture tank; 2. Primary filter box; 3. Waste collection frame; 4. Sodium bicarbonate storage and mixing tank;

[0026] 5. Water supply components; 51. Water pump one; 52. Water supply pipe; 53. Water pump two; 54. Multi-head drain pipe; 55. Circulation pump; 56. Backflow pipe;

[0027] 6. Cleaning components; 61. Fixing frame; 62. Pushing frame; 63. Stepper motor; 64. Locking gear; 65. Connecting frame; 66. Cleaning roller;

[0028] 7. Filter assembly; 71. Square filter plate; 72. Activated carbon plate;

[0029] 8. DC motor; 9. Corrosion-resistant shaft; 10. Stirring rod; 11. Embedded rack. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0035] This application discloses an aquaculture water purification and recycling device. (Refer to...) Figures 1 to 6 The aquaculture water purification and circulation equipment includes an aquaculture tank 1, a primary filter box 2, a waste collection frame 3, a sodium bicarbonate storage and stirring tank 4, a water conveying component 5, a cleaning component 6, and a filter component 7. One end of the water conveying component 5 penetrates the surface of the aquaculture tank 1 and is tightly fitted to the inner surface of the aquaculture tank 1. The top of the primary filter box 2 is fixedly connected to the surface of the cleaning component 6. The cleaning component 6 is located above the filter component 7. The filter component 7 is installed inside the primary filter box 2. The waste collection frame 3 is located below the discharge end of the primary filter box 2. The sodium bicarbonate storage and stirring tank 4 is located on the outside of the primary filter box 2.

[0036] The aquaculture tank 1 is used to store purified water for aquaculture. The primary filter 2 is used to filter undigested fertilizer and excrement from the aquaculture plants in the water. The waste collection frame 3 is used to collect the waste discharged from the primary filter 2. The sodium bicarbonate storage and stirring tank 4 is used to adjust the pH value of the aquaculture water and remove harmful substances from the water. The water supply assembly 5 is used to circulate and supply purified water to the aquaculture tank 1. The cleaning assembly 6 is used to clean the surface waste of the filter assembly 7. The filter assembly 7 is used to circulate and filter the water introduced into the primary filter 2.

[0037] The DC motor 8 and stirring rod 10 inside the sodium bicarbonate storage and stirring tank 4 ensure uniform dissolution of sodium bicarbonate, intelligently regulate the pH value of the water, and create a suitable breeding environment. The cleaning component 6 uses the transmission principle of the stepper motor 63 and the locking gear 64 to realize the automatic cleaning of the cleaning roller 66 and maintain the efficient operation of the filter component 7. The water supply component 5 realizes the circulation supply of breeding water through the coordinated work of the water pump 51, the multi-head drain pipe 54 and the circulation pump 55, ensuring the continuous purification of water quality.

[0038] The water supply assembly 5 includes a first water pump 51, a water supply pipe 52, a second water pump 53, a multi-head drain pipe 54, a circulation pump 55, and a backflow pipe 56. The first water pump 51 is installed on one side of the water supply pipe 52, and the top side of the water supply pipe 52 is in close contact with the surface of the primary filter box 2. The second water pump 53 is installed on one side of the output end of the multi-head drain pipe 54, and the top of the multi-head drain pipe 54 penetrates the top of the sodium bicarbonate storage and mixing tank 4 and is in close contact with the inner wall of the sodium bicarbonate storage and mixing tank 4. The circulation pump 55 is installed on one side of the backflow pipe 56, and the two ends of the backflow pipe 56 are in close contact with the bottom surfaces of the sodium bicarbonate storage and mixing tank 4 and the aquaculture tank 1, respectively.

[0039] The cleaning assembly 6 includes a fixed frame 61, a pusher frame 62, a stepper motor 63, a locking gear 64, a connecting frame 65, and a cleaning roller 66. The fixed frame 61 is installed on the top of the primary filter box 2. The pusher frame 62 is slidably sleeved on the outside of the fixed frame 61. The stepper motor 63 is installed on the top of the pusher frame 62. The locking gear 64 is fixedly connected to the outside of the output end of the stepper motor 63. The connecting frame 65 is installed on the bottom of the pusher frame 62. The cleaning roller 66 is rotatably connected to the bottom of the connecting frame 65 and is used to fully contact the filter assembly 7.

[0040] The filter assembly 7 includes a square filter plate 71 and an activated carbon plate 72. The square filter plate 71 is threadedly connected to the inside of the primary filter box 2, and the activated carbon plate 72 is arranged at equal intervals in the primary filter box 2 below the square filter plate 71.

[0041] The sodium bicarbonate storage and stirring tank 4 is also equipped with a DC motor 8, a corrosion-resistant shaft 9, and a stirring rod 10 in the middle. The DC motor 8 is installed at the top middle of the sodium bicarbonate storage and stirring tank 4, the corrosion-resistant shaft 9 is fixedly connected to the lower part of the output end of the DC motor 8, and the stirring rod 10 is welded and fixed to the outer wall of the corrosion-resistant shaft 9.

[0042] The inner side of the fixed frame 61 is also provided with an embedded rack 11 that meshes with the external teeth of the locking gear 64.

[0043] Two sets of fixed frames 61 are provided, and the two sets of fixed frames 61 are symmetrically arranged on the top of the primary filter box 2.

[0044] The equipment adopts a multi-filtration mechanism combining a primary filter box 2 with a square filter plate 71 and an activated carbon plate 72, which effectively intercepts and adsorbs impurities and harmful substances in the water.

[0045] The general process of using the aquaculture water purification and recycling equipment in this embodiment is as follows:

[0046] When the power is turned on, water in the aquaculture tank 1 is drawn by water pump 51 through water pipe 52 and sent to primary filter box 2. In primary filter box 2, undigested fertilizer and excrement of aquatic animals are initially intercepted by square filter plate 71. Subsequently, the water flows through activated carbon plate 72, which further adsorbs suspended solids and impurities in the water. Waste accumulated during primary filtration falls into waste collection frame 3 through the discharge end of primary filter box 2 for subsequent treatment. The water after primary filtration enters sodium bicarbonate storage and stirring tank 4 through multi-head drain pipe 54. Sodium bicarbonate is added using the formula: required sodium bicarbonate mass (g) = water volume (L) × target concentration (mg / L) ÷ 1000. Then, DC motor 8 is started, which drives corrosion-resistant shaft 9 and stirring rod 10 to rotate, ensuring that sodium bicarbonate is evenly dissolved in the water, adjusting the pH value and eliminating harmful substances. During the cleaning process, the upper stepper motor 63 is started, which drives the locking gear 64 to rotate and mesh with the embedded rack 11 inside the fixed frame 61. This pushes the pusher frame 62 and the cleaning roller 66 below it to slide along the fixed frame 61. The cleaning roller 66 fully contacts and cleans the surface of the filter assembly 7, ensuring that the filtration efficiency is not affected. The treated purified water is sent back to the aquaculture tank 1 through the circulation pump 55 and the backflow pipe 56 to complete the circulation.

[0047] The beneficial technical effects of the aquaculture water purification and recycling equipment in this application embodiment are roughly as follows:

[0048] This equipment first filters out undigested fertilizer and aquatic excrement through the primary filter box 2. Then, combined with the circulating filtration of the filter component 7 and the adjustment of the water pH and elimination of harmful substances by the sodium bicarbonate storage and stirring tank 4, it achieves multiple purification effects, significantly improving water quality and providing a healthier and more stable growth environment for aquatic organisms. By adding sodium bicarbonate to the storage and stirring tank 4, using the formula: required sodium bicarbonate mass (grams) = water volume (liters) × target concentration (mg / L) ÷ 1000, it not only adjusts the water pH but also helps to eliminate harmful substances such as ammonia nitrogen and nitrite in the water.

[0049] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A water purification and recycling device for aquaculture, characterized in that, The aquaculture tank (1), primary filter box (2), waste collection frame (3), sodium bicarbonate storage and stirring tank (4), water supply component (5), cleaning component (6) and filter component (7) are included. One end of the water supply component (5) penetrates the surface of the aquaculture tank (1) and is tightly attached to the inner surface of the aquaculture tank (1). The top of the primary filter box (2) is fixedly connected to the surface of the cleaning component (6). The cleaning component (6) is located above the filter component (7). The filter component (7) is installed inside the primary filter box (2). The waste collection frame (3) is located below the discharge end of the primary filter box (2). The sodium bicarbonate storage and stirring tank (4) is located outside the primary filter box (2). The aquaculture tank (1) is used to store purified water for aquaculture. The primary filter box (2) is used to filter undigested fertilizer and excrement from the aquaculture plants in the water. The waste collection frame (3) is used to collect the waste discharged from the primary filter box (2). The sodium bicarbonate storage and stirring tank (4) is used to adjust the pH value of the aquaculture water and eliminate harmful substances in the water. The water supply component (5) is used to circulate purified water to the aquaculture tank (1). The cleaning component (6) is used to clean the surface waste of the filter component (7). The filter component (7) is used to circulate and filter the water introduced into the primary filter box (2).

2. The aquaculture water purification and recycling equipment according to claim 1, characterized in that, The water supply assembly (5) includes a water pump (51), a water supply pipe (52), a water pump (53), a multi-head drain pipe (54), a circulation pump (55), and a backflow pipe (56). The water pump (51) is installed on one side of the water supply pipe (52), and the top side of the water supply pipe (52) is in close contact with the surface of the primary filter box (2). The water pump (53) is installed on one side of the output end of the multi-head drain pipe (54), and the top of the multi-head drain pipe (54) penetrates the top of the sodium bicarbonate storage tank (4) and is in close contact with the inner wall of the sodium bicarbonate storage tank (4). The circulation pump (55) is installed on one side of the backflow pipe (56), and the two ends of the backflow pipe (56) are in close contact with the bottom surfaces of the sodium bicarbonate storage tank (4) and the aquaculture tank (1), respectively.

3. The aquaculture water purification and recycling equipment according to claim 1, characterized in that, The cleaning assembly (6) includes a fixed frame (61), a pusher frame (62), a stepper motor (63), a locking gear (64), a connecting frame (65), and a cleaning roller (66). The fixed frame (61) is installed on the top of the primary filter box (2). The pusher frame (62) is slidably sleeved on the outside of the fixed frame (61). The stepper motor (63) is installed on the top of the pusher frame (62). The locking gear (64) is fixedly connected to the outside of the output end of the stepper motor (63). The connecting frame (65) is installed on the bottom of the pusher frame (62). The cleaning roller (66) is rotatably connected to the bottom of the connecting frame (65) and is used to fully contact the filter assembly (7).

4. The aquaculture water purification and recycling equipment according to claim 3, characterized in that, The filter assembly (7) includes a square filter plate (71) and an activated carbon plate (72). The square filter plate (71) is threadedly connected to the inside of the primary filter box (2). The activated carbon plates (72) are arranged at equal intervals in the primary filter box (2) below the square filter plate (71).

5. The aquaculture water purification and recycling equipment according to claim 1, characterized in that, The sodium bicarbonate storage and stirring tank (4) is also provided with a DC motor (8), a corrosion-resistant shaft (9) and a stirring rod (10) in the middle. The DC motor (8) is installed at the top middle of the sodium bicarbonate storage and stirring tank (4). The corrosion-resistant shaft (9) is fixedly connected to the output end of the DC motor (8). The stirring rod (10) is welded and fixed to the outer wall of the corrosion-resistant shaft (9).

6. The aquaculture water purification and recycling equipment according to claim 3, characterized in that, The inner side of the fixed frame (61) is also provided with an embedded rack (11) that meshes with the outer teeth of the locking gear (64).

7. The aquaculture water purification and recycling equipment according to claim 6, characterized in that, The fixed frame (61) is provided in two sets, and the two sets of fixed frames (61) are symmetrically arranged on the top of the primary filter box (2).

Citation Information

Patent Citations

  • Water purification and circulation equipment for aquaculture

    CN220597166U