Water changing device for aquaculture

By designing a combination of filtration devices inside the tank, the problems of water waste and water pipe blockage in the water exchange device were solved, achieving water quality improvement and resource recycling, and reducing aquaculture costs.

CN224250481UActive Publication Date: 2026-05-19JIANGXI YOUQUAN AGRICULTURAL DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI YOUQUAN AGRICULTURAL DEVELOPMENT CO LTD
Filing Date
2025-07-03
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing water exchange devices are prone to water waste and blockage of pumping pipes during use, affecting pumping efficiency.

Method used

An aquaculture water exchange device was designed, comprising a tank, a pumping pipe, a filtration device, and an outlet pipe. By combining a first filtration device and a second filtration device, turbid water can be filtered and recycled, ensuring the flowability and filtration efficiency of the filtration system.

Benefits of technology

It has achieved a significant improvement in water quality, reduced the amount of fresh water needed, lowered aquaculture costs, extended the service life of the filtration device, and improved the recycling rate of water resources.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of water changing devices, in particular to an aquaculture water changing device which comprises a box body and a culture pond, supporting frames are fixedly connected to the left portion and the right portion of the outer surface of the box body, a water drainage pipe is fixedly connected to the lower end of the box body, and a water pumping pipe is fixedly connected to the rear portion of the outer surface of the box body. A first filtering device is movably connected in the box body in a penetrating mode, a first water pump is installed and connected to the water pumping pipe, and a second filtering device is fixedly connected to the other end of the water pumping pipe. According to the water changing device for aquaculture, the second filtering device is arranged at the tail end of the water pumping pipe, the second filtering device is composed of the connecting end and the filtering cylinder, the filtering cylinder is transversely arranged and is wide in area, and when part of the second through holes are blocked, the other second through holes can still enable the filtering cylinder to keep good circulation performance.
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Description

Technical Field

[0001] This utility model relates to the technical field of water exchange devices, and in particular to a water exchange device for aquaculture. Background Technology

[0002] Water exchange is a crucial management measure in aquaculture, essential for maintaining the ecological balance of the aquaculture water and ensuring the healthy growth of farmed organisms. Existing water exchange devices have at least the following drawbacks: 1. Most existing devices pump out turbid water and then pour fresh water into the tank. However, the water quality may not be turbid at the end of the exchange cycle, leading to a waste of water resources; 2. While existing devices often have filters at the end of the pumping pipe to prevent fish from entering, these filters are usually directly installed at the pipe end with a diameter that matches the pipe diameter. If clogged, the pumping efficiency is significantly reduced. Therefore, we are introducing an aquaculture water exchange device. Utility Model Content

[0003] The main purpose of this utility model is to provide a water exchange device for aquaculture, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A water exchange device for aquaculture includes a tank and a culture pond. Support frames are fixedly connected to the left and right sides of the outer surface of the tank. A drain pipe is fixedly connected to the lower end of the tank, and a pumping pipe is fixedly connected to the rear side of the outer surface of the tank. A first-order filter is movably connected inside the tank. A first-order water pump is installed on the pumping pipe, and a second-order filter is fixedly connected to the other end of the pumping pipe. An outlet pipe is fixedly connected to the lower end of the drain pipe. A third-order valve and a second-order valve are installed on the outer surface of the outlet pipe. The third-order valve is located at the front of the drain pipe, and the second-order valve is located at the rear of the drain pipe. A second-order water pump is installed on the outer surface of the outlet pipe, and a three-way pipe is fixedly connected to one end of the second-order water pump. A first-order valve is installed on the outer surface of the outlet pipe, and a water supply pipe is fixedly connected to the right end of the three-way pipe.

[0006] Preferably, the second filter device includes a connecting end, and a filter cylinder is fixedly connected to the rear end of the connecting end. The outer surface of the filter cylinder has several second through holes.

[0007] Preferably, the connecting end is fixedly connected to the end of the water pump pipe away from the tank.

[0008] Preferably, the water pumping pipe is fixedly connected to the aquaculture pond, and the connection end is located inside the aquaculture pond.

[0009] Preferably, the first filter device includes a frame, with three connecting brackets fixedly connected to the upper end of the frame. The three connecting brackets are all "L" shaped structures and are distributed in a ring at equal distances. An extension is fixedly connected to the lower end of the frame, and a plurality of first through holes are opened on the extension.

[0010] By adopting the above technical solution, activated carbon, biochemical cotton, and other filter materials can be placed on the extension.

[0011] Preferably, the extension has a structure that is wider at the top and narrower at the bottom.

[0012] Preferably, the frame is interlocked and movably connected to the box body, and all four connecting brackets are in contact with the upper end of the box body.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, a water pump is installed on the outer surface of the tank. The other end of the water pump passes through the lower part of the front end and is connected to a second filter device. A water outlet is connected to the lower end of the tank, and the other end of the water outlet is higher than the top of the breeding pond. By starting the first water pump installed on the water pump, the first water pump can draw out the fecal water from the bottom of the breeding pond and let it enter the tank. The turbid water is filtered by the first filter device installed in the tank. The filtered water enters the water outlet and is then sent into the breeding pond by the action of the second water pump on the water outlet. Thus, the relatively clear water can be reused.

[0015] In this invention, a second filter device is installed at the end of the water pump pipe. The second filter device consists of a connecting end and a filter cylinder. The filter cylinder is arranged horizontally and has a relatively wide area. Even if some of the second through holes are blocked, the other second through holes can still maintain good flow of the filter cylinder. By installing a first filter device inside the tank, the turbid water entering the tank through the water pump pipe will pass through the extension. The first through hole on the extension will filter the feces in the turbid water. Since the first filter device is easy to remove, it is also convenient to clean the feces. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an aquaculture water exchange device according to the present invention;

[0017] Figure 2 This is a schematic diagram illustrating the use of a water exchange device for aquaculture according to this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the No. 1 filter device of the aquaculture water exchange device of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the No. 2 filter device of the aquaculture water exchange device of this utility model.

[0020] In the diagram: 1. Box body; 2. Filter device No. 1; 3. Water pump pipe; 4. Valve No. 1; 5. T-connector; 6. Water supply pipe; 7. Filter device No. 2; 8. Water outlet pipe; 9. Water pump No. 2; 10. Support frame; 11. Valve No. 2; 12. Drain pipe; 13. Valve No. 3; 14. Aquaculture pond; 15. Water pump No. 1; 21. Frame; 22. Connecting frame; 23. Through hole No. 1; 24. Extension; 71. Connecting end; 72. Filter cylinder; 73. Through hole No. 2. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model 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 utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] A water exchange device for aquaculture includes a tank 1 and an aquaculture pond 14. Support frames 10 are fixedly connected to the left and right sides of the outer surface of the tank 1. A drain pipe 12 is fixedly connected to the lower end of the tank 1. A pumping pipe 3 is fixedly connected to the rear side of the outer surface of the tank 1. A first filter device 2 is movably connected inside the tank 1. A first water pump 15 is installed on the pumping pipe 3. A second filter device 7 is fixedly connected to the other end of the pumping pipe 3. An outlet pipe 8 is fixedly connected to the lower end of the drain pipe 12. A third valve 13 and a second valve 11 are installed on the outer surface of the outlet pipe 8. The third valve 13 is located in front of the drain pipe 12, and the second valve 11 is located behind the drain pipe 12. A second water pump 9 is installed on the outer surface of the outlet pipe 8. A three-way pipe 5 is fixedly connected to one end of the second water pump 9. A first valve 4 is installed on the outer surface of the outlet pipe 8. A water supply pipe 6 is fixedly connected to the right end of the three-way pipe 5.

[0026] In this embodiment, the second filter device 7 includes a connecting end 71, and a filter cylinder 72 is fixedly connected to the rear end of the connecting end 71. The outer surface of the filter cylinder 72 has several second through holes 73. The connecting end 71 is fixedly connected to the end of the water pumping pipe 3 away from the box 1. The water pumping pipe 3 is inserted and fixedly connected to the breeding pond 14, and the connecting end 71 is located inside the breeding pond 14.

[0027] Through the above scheme: numerous No. 2 through holes 73 are evenly distributed on the surface of the filter cylinder 72. These through holes play a key role in the filtration process. In actual operation, due to the large amount of impurities in the turbid water, some No. 2 through holes 73 may be temporarily blocked by some larger particles. However, thanks to the wide area design of the filter cylinder 72, even if some No. 2 through holes 73 are blocked, the other unblocked No. 2 through holes 73 can still ensure that the filter cylinder 72 maintains good flow.

[0028] In this embodiment, the No. 1 filter device 2 includes a frame 21. Three connecting brackets 22 are fixedly connected to the upper end of the frame 21. The three connecting brackets 22 are all "L" shaped structures and are distributed in a ring at equal distances. An extension 24 is fixedly connected to the lower end of the frame 21. Several No. 1 through holes 23 are opened on the extension 24. The extension 24 has a structure that is wider at the top and narrower at the bottom. The frame 21 is movably connected to the housing 1, and all four connecting brackets 22 are in contact with the upper end of the housing 1.

[0029] With the above solution, numerous No. 1 through holes 23 are evenly distributed on the extension 24. These through holes are like tiny "sieves" that can accurately intercept larger particles such as feces in the turbid water.

[0030] It should be noted that this utility model describes a water exchange device for aquaculture. The first water pump 15, installed on the pumping pipe 3, is activated to extract the turbid water containing feces accumulated at the bottom of the aquaculture pond 14. The extracted turbid water flows through the pumping pipe 3 into the tank 1. The tank 1, as the core container of the entire filtration system, is responsible for the deep purification of the turbid water. When the turbid water enters the tank 1, it first encounters the first filter device 2. Numerous first through-holes 23 are evenly distributed on the extension 24. These through-holes act like tiny "sieves," accurately intercepting larger particles such as feces in the turbid water. The filter device 2 is conveniently installed to the housing 1, allowing operators to easily remove it. Simply remove the filter device 2 periodically, clean off any impurities, and reinstall it. This ensures the filtration system remains in good working order. The water, after initial filtration by the filter device 2, exhibits improved quality. This water continues to flow into the outlet pipe 8, a key component of the water circulation system. A second water pump 9 is installed on the outlet pipe 8 to ensure smooth water flow along it, ultimately returning it to the aquaculture pond 14. The water treated in this series of processes is now much clearer than the turbid water initially drawn from the bottom of the aquaculture pond 14. Its water quality indicators have been significantly improved. Reusing the water in the aquaculture pond 14 effectively maintains the ecological balance of the aquaculture water, reduces the amount of new water needed, lowers aquaculture costs, and achieves water resource recycling. A secondary filter device 7 is specially installed at the end of the pumping pipe 3. This secondary filter device 7 consists of a connecting end 71 and a filter cylinder 72. The connecting end 71 is made of a sturdy and durable material and is tightly connected to the end of the pumping pipe 3. The filter cylinder 72 is horizontally positioned. This unique installation method allows for a wider flow path. The filter cartridge 72 has numerous No. 2 through holes 73 evenly distributed on its surface. These through holes play a crucial role in the filtration process. In actual operation, due to the large amount of impurities in the turbid water, some No. 2 through holes 73 may be temporarily blocked by some larger particles. However, thanks to the wide area design of the filter cartridge 72, even if some No. 2 through holes 73 are blocked, the other unblocked No. 2 through holes 73 can still ensure that the filter cartridge 72 maintains good flowability, ensuring that the turbid water can pass through continuously and smoothly, thereby effectively improving filtration efficiency, extending the service life of the filtration device, and reducing maintenance costs.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A water exchange device for aquaculture, comprising a tank (1) and an aquaculture pond (14), characterized in that: Support frames (10) are fixedly connected to the left and right sides of the outer surface of the box (1). A drain pipe (12) is fixedly connected to the lower end of the box (1). A water pump (3) is fixedly connected to the rear of the outer surface of the box (1). A first filter device (2) is movably connected inside the box (1). A first water pump (15) is installed on the water pump (3). A second filter device (7) is fixedly connected to the other end of the water pump (3). An outlet pipe (8) is fixedly connected to the lower end of the drain pipe (12). The outlet pipe (8) is connected to a No. 3 valve (13) and a No. 2 valve (11) on its outer surface. The No. 3 valve (13) is located in front of the drain pipe (12), and the No. 2 valve (11) is located in the rear of the drain pipe (12). The outlet pipe (8) is connected to a No. 2 water pump (9). One end of the No. 2 water pump (9) is fixedly connected to a three-way pipe (5). The outlet pipe (8) is connected to a No. 1 valve (4). The right end of the three-way pipe (5) is fixedly connected to a water supply pipe (6). The second filter device (7) includes a connecting end (71), and a filter cylinder (72) is fixedly connected to the rear end of the connecting end (71). The outer surface of the filter cylinder (72) has several second through holes (73).

2. The aquaculture water exchange device according to claim 1, characterized in that: The connecting end (71) is fixedly connected to the end of the water pump (3) away from the box (1).

3. The aquaculture water exchange device according to claim 1, characterized in that: The water pumping pipe (3) is inserted and fixedly connected to the aquaculture pond (14), and the connection end (71) is located inside the aquaculture pond (14).

4. The aquaculture water exchange device according to claim 1, characterized in that: The first filter device (2) includes a frame (21), and three connecting brackets (22) are fixedly connected to the upper end of the frame (21). The three connecting brackets (22) are all "L" shaped structures and are distributed in a ring at equal distances. An extension (24) is fixedly connected to the lower end of the frame (21), and several first through holes (23) are opened on the extension (24).

5. The aquaculture water exchange device according to claim 4, characterized in that: The extension (24) has a structure that is wider at the top and narrower at the bottom.

6. The aquaculture water exchange device according to claim 4, characterized in that: The frame (21) is interlocked with the box (1), and the four connecting frames (22) are in contact with the upper end of the box (1).