A wastewater purification device for aquaculture

By designing a wastewater purification device for aquaculture with components such as purification tanks and filter racks, the problems of filter clogging and inconvenient replacement have been solved, achieving uniform filtration and efficient purification of wastewater, and improving the practicality and ease of maintenance of the equipment.

CN224422119UActive Publication Date: 2026-06-30JIANGSU RUIJIETE ENVIRONMENTAL PROTECTION TECH CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU RUIJIETE ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-06-23
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing wastewater purification devices for aquaculture cannot achieve rapid and uniform flow distribution during the filter cartridge flow purification operation, which easily leads to clogging. Furthermore, filter cartridge replacement and maintenance are inconvenient, affecting the purification effect and efficiency.

Method used

A device was designed that includes components such as a purification tank, a central tube, a filter rack, a diversion side tube, a fan-shaped flow guide hood, and a filter element. This device enables uniform diversion and filtration of wastewater, and facilitates filter element replacement and maintenance through the cooperation of an annular return pipe and a control valve when the filter rack becomes clogged.

Benefits of technology

It achieves uniform filtration of wastewater, avoids clogging, improves purification efficiency, and facilitates filter replacement and maintenance, ensuring the continuous and efficient operation of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a wastewater purification device for aquaculture, including a purification tank. A central pipe is installed inside the purification tank, and filter components are arranged on all four sides of the tank's interior. Liquid delivery components are also arranged on all four sides of the purification tank's sides. The filter components include filter holders, and the liquid delivery components include diversion side pipes. These diversion side pipes are fixedly connected to all four sides of the purification tank's sides. This utility model, through its purification tank, central pipe, filter holders, diversion side pipes, fan-shaped guide hood, filter element, feed valve, feed interface, connecting pipe, diversion arc seat, and discharge valve, enables the equipment to uniformly divert and filter aquaculture wastewater. In actual use, the operator first connects the wastewater pipe to the feed valve and feed interface at the top of the central pipe. Then, the wastewater flows along the connecting pipes on the four sides of the central pipe into the diversion arc seat.
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Description

Technical Field

[0001] This utility model belongs to the field of agricultural and aquaculture wastewater treatment technology, specifically relating to an aquaculture wastewater purification device. Background Technology

[0002] Water treatment equipment refers to equipment used to filter and purify water. It removes impurities from water through certain physical or chemical means to meet the needs of domestic or industrial water use. Water treatment equipment is widely used in domestic facilities such as boilers, central air conditioning, and household wall-mounted boilers, which use water as the main medium, as well as in industrial fields such as pharmaceuticals, food, and alcohol. The core of aquaculture water treatment is to purify aquaculture wastewater through physical, chemical, and biological methods to achieve recycling or discharge in compliance with standards. The main technologies include physical filtration, biological filtration, disinfection, and water quality control.

[0003] In response, Chinese patent application number CN 219297327 U discloses a wastewater purification device for aquaculture, relating to the field of wastewater purification technology. The device includes a primary anaerobic tank, a secondary anaerobic tank, an anoxic tank, an MBR membrane tank, and a disinfection tank. The primary, secondary, and anoxic tanks are respectively located outside the disinfection tank. Biochemical packing materials are installed inside the primary, secondary, and anoxic tanks. An MBR membrane is fixedly installed inside the MBR membrane tank. Aeration discs are fixedly installed at the bottom of both the anoxic and MBR membrane tanks. An inlet is installed on one side of the primary anaerobic tank, and an outlet is installed on one side of the disinfection tank. A power mechanism, including a mounting frame and an electrical control box, is located on one side of the MBR membrane tank and on the other side of the anoxic tank. This invention effectively improves the practicality of wastewater purification devices and has high practical value.

[0004] However, when this structure is used for actual aquaculture wastewater purification, due to its own limitations, it can only use the filter cartridge to flow and purify within the pipeline. It cannot quickly and evenly distribute the wastewater, and the filter cartridge is easily clogged, affecting the overall purification effect. At the same time, the equipment cannot perform more efficient filter cartridge replacement and maintenance, and cannot meet daily usage needs. Therefore, improving and perfecting the above-mentioned problems has become an urgent issue to be addressed. Utility Model Content

[0005] The purpose of this utility model is to provide a wastewater purification device for aquaculture, in order to solve the problem that existing structures, due to their own limitations, can only use the filter element to flow and purify in the pipeline, and cannot quickly and evenly distribute the wastewater. The filter element is easily clogged, affecting the overall purification effect. At the same time, the equipment cannot perform more efficient replacement and maintenance of the filter element, and cannot meet the needs of daily use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a wastewater purification device for aquaculture, comprising a purification tank, a central tube disposed inside the purification tank, filter components disposed on the four sides inside the purification tank, and infusion components disposed on the four sides of the side of the purification tank.

[0007] The filter assembly includes filter drawers, and the filter drawers are provided on the four sides of the interior of the purification tank;

[0008] The infusion assembly includes a diversion side pipe, and the diversion side pipe is fixedly connected to the four sides of the side of the purification tank.

[0009] Preferably, a first control valve is provided at the top of the diversion side pipe, and a second control valve is provided on the bottom side of the diversion side pipe.

[0010] Preferably, the inner wall of the diversion side pipe is provided with a fan-shaped flow guide shroud, which is adapted to the filter tray.

[0011] Preferably, a lifting handle is fixedly connected to the top of the filter drawer, and a filter element is provided inside the filter drawer.

[0012] Preferably, a feed valve is fixedly connected to the top of the central tube, the feed valve has a feed port inside, and connecting pipes are provided on the four sides of the central tube. A flow-dividing arc seat is provided at one end of the connecting pipe, and the flow-dividing arc seat is connected to the top of the flow-dividing side tube.

[0013] Preferably, an annular reflux pipe is provided at the bottom edge of the purification tank, and monitoring valves are provided on the four sides of the annular reflux pipe. The annular reflux pipe and the monitoring valves are connected to the bottom end of the diversion side pipe.

[0014] Preferably, a liquid outlet valve is provided at the bottom end of the central tube.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This wastewater purification device for aquaculture, through its purification tank, central pipe, filter rack, diversion side pipe, fan-shaped guide hood, filter element, feed valve, feed interface, connecting pipe, diversion arc seat, and discharge valve, enables the equipment to uniformly divert and filter aquaculture wastewater. In actual use, the operator first connects the wastewater pipe to the feed valve and feed interface at the top of the central pipe. Then, the wastewater flows along the four connecting pipes on the side of the central pipe into the diversion arc seat. The diversion arc seat then diverts the wastewater to the diversion side pipe, where it is evenly conveyed into the filter rack through the fan-shaped guide hood on the inner wall of the diversion side pipe. The filter element inside the filter rack then performs uniform filtration of the wastewater, avoiding blockages that could affect the flow rate. Finally, all the wastewater enters the central pipe and is discharged from the discharge valve at the bottom, greatly improving the purification effect of the equipment on aquaculture wastewater and demonstrating the practicality of the equipment design.

[0017] 2. This aquaculture wastewater purification device, through its purification tank, filter rack, diversion side pipe, first control valve, second control valve, lifting handle, filter element, annular return pipe, and monitoring valve, further improves the overall efficiency of the equipment. During daily use, when the filter element inside the filter rack becomes clogged, wastewater can enter the annular return pipe from the bottom along the diversion side pipe, and then enter the other three diversion side pipes along the annular return pipe. The monitoring valves on the four sides of the diversion side pipe will trigger an alarm. At this time, the first and second control valves on the diversion side pipe can be closed. Then, the filter rack can be pulled out from the top of the purification tank using the lifting handle at the top of the filter rack. After that, the new filter rack can be reinstalled inside the purification tank. Opening the first and second control valves will restart the aquaculture wastewater diversion and purification operation, ensuring the efficiency of the equipment at all times and demonstrating the comprehensiveness of the equipment design. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0019] Figure 2 This is an overall schematic diagram of the diversion side pipe structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the filter drawer of this utility model;

[0021] Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure at point A;

[0022] Figure 5 This utility model Figure 1 Enlarged schematic diagram of the structure at point B.

[0023] In the diagram: 1. Purification tank; 2. Central tube; 3. Filter tray; 4. Diversion side tube; 5. First control valve; 6. Second control valve; 7. Fan-shaped flow guide hood; 8. Lifting handle; 9. Filter element; 10. Feed valve; 11. Feed interface; 12. Connecting pipe; 13. Diversion arc seat; 14. Annular reflux pipe; 15. Monitoring valve; 16. Discharge valve. Detailed Implementation

[0024] 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.

[0025] This utility model provides a wastewater purification device for aquaculture, as shown in the figure. It includes a purification tank 1, a central tube 2 inside the purification tank 1, filter components on all four sides of the tank's interior, and infusion components on all four sides of the tank's sides. A feed valve 10 is fixedly connected to the top of the central tube 2, and a feed inlet 11 is provided inside the feed valve 10. Connecting pipes 12 are provided on all four sides of the central tube 2, and a diversion arc seat 13 is provided at one end of each connecting pipe 12. The diversion arc seat 13 is connected to the top of a diversion side pipe 4. A bottom edge of the purification tank 1 is provided with… The annular return pipe 14 has monitoring valves 15 installed on its four sides. The annular return pipe 14 and monitoring valves 15 are connected to the bottom end of the diversion side pipe 4. The bottom end of the central pipe 2 is equipped with a liquid outlet valve 16. Wastewater flows along the connecting pipes 12 on the four sides of the central pipe 2 and is diverted into the diversion arc seat 13. The diversion arc seat 13 then diverts the wastewater to the diversion side pipe 4. Through the fan-shaped guide shroud 7 on the inner wall of the diversion side pipe 4, the wastewater is evenly transported into the filter tray 3. The wastewater can be evenly filtered through the filter element 9 inside the filter tray 3.

[0026] The filtration assembly includes a filter holder 3, which is installed on all four sides of the interior of the purification tank 1. The infusion assembly includes a diversion side pipe 4, which is fixedly connected to all four sides of the side of the purification tank 1. A first control valve 5 is installed at the top of the diversion side pipe 4, and a second control valve 6 is installed at the bottom side of the diversion side pipe 4. A fan-shaped guide shroud 7 is installed on the inner wall of the diversion side pipe 4, which is adapted to the filter holder 3. A lifting handle 8 is fixedly connected to the top of the filter holder 3, and a filter element 9 is installed inside the filter holder 3. By using the lifting handle 8 at the top of the filter holder 3, the entire filter holder 3 can be pulled out from the top of the purification tank 1, and then the new filter holder 3 can be reinstalled inside the purification tank 1. The first control valve 5 and the second control valve 6 can be opened to resume the wastewater diversion and purification operation for aquaculture.

[0027] Working Principle: In actual use, the operator first connects the wastewater pipe to the feed valve 10 and feed interface 11 at the top of the central pipe 2. Then, the wastewater flows along the four connecting pipes 12 on the side of the central pipe 2 and is diverted into the diversion arc seat 13. The diversion arc seat 13 then diverts the wastewater to the diversion side pipe 4. Through the fan-shaped guide shroud 7 on the inner wall of the diversion side pipe 4, the wastewater is evenly transported into the filter rack 3. The filter element 9 inside the filter rack 3 can perform uniform filtration of the wastewater, avoiding blockages that affect the flow rate. Finally, all the wastewater enters the central pipe 2 and is discharged from the bottom outlet valve 16, greatly improving the equipment's purification effect on aquaculture wastewater. During use, when the filter element 9 inside the filter holder 3 becomes clogged, the wastewater can enter the annular return pipe 14 from the bottom along the diversion side pipe 4, and then enter the other three diversion side pipes 4 along the annular return pipe 14. The monitoring valves 15 on the four sides of the diversion side pipe 4 will monitor and alarm. At this time, the first control valve 5 and the second control valve 6 on the diversion side pipe 4 can be closed. Then, the filter holder 3 can be pulled out from the top of the purification tank 1 by using the lifting handle 8 at the top of the filter holder 3. Then, the new filter holder 3 can be reinstalled into the purification tank 1. The first control valve 5 and the second control valve 6 can be opened to resume the wastewater diversion and purification operation for aquaculture, ensuring the efficiency of equipment purification at all times.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wastewater purification device for aquaculture, comprising a purification tank (1), characterized in that: The purification tank (1) is provided with a central tube (2) inside, and a filter assembly is provided on the four sides inside the purification tank (1). An infusion assembly is provided on the four sides of the side of the purification tank (1). The filter assembly includes a filter rack (3), and the filter rack (3) is provided on the four sides of the interior of the purification tank (1). The infusion assembly includes a diversion side tube (4), and the diversion side tube (4) is fixedly connected to the four sides of the side of the purification tank (1).

2. A device for purifying wastewater for aquaculture according to claim 1, characterized in that: The top end of the diversion side pipe (4) is provided with a first control valve (5), and the bottom side of the diversion side pipe (4) is provided with a second control valve (6).

3. The wastewater purification device for aquaculture according to claim 1, characterized in that: The inner wall of the diversion side pipe (4) is provided with a fan-shaped flow guide shroud (7), which is adapted to the filter tray (3).

4. The wastewater purification device for aquaculture according to claim 1, characterized in that: The top of the filter drawer (3) is fixedly connected to a lifting handle (8), and a filter core (9) is provided inside the filter drawer (3).

5. The wastewater purification device for aquaculture according to claim 1, characterized in that: The top end of the central tube (2) is fixedly connected to a feed valve (10), and the feed valve (10) is provided with a feed port (11). The four sides of the central tube (2) are provided with connecting pipes (12), and one end of the connecting pipe (12) is provided with a flow divider arc seat (13). The flow divider arc seat (13) is connected to the top end of the flow divider side tube (4).

6. The wastewater purification device for aquaculture according to claim 1, characterized in that: The bottom edge of the purification tank (1) is provided with an annular reflux pipe (14), and monitoring valves (15) are provided on the four sides of the annular reflux pipe (14). The annular reflux pipe (14) and the monitoring valves (15) are connected to the bottom end of the diversion side pipe (4).

7. The wastewater purification device for aquaculture according to claim 1, characterized in that: The bottom end of the central tube (2) is provided with a liquid outlet valve (16).