Water purification and filtration device for aquaculture
By designing a filter box with filtration function in aquaculture, and using a lifting cylinder and filter membrane to remove the oil film on the water surface, the problems of low dissolved oxygen and oil film hindering oxygen combination in high-density aquaculture are solved, thus improving the water purification effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGHAI WANHONG (TANGSHAN) FISHERIES TECH CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-03
Smart Images

Figure CN224450368U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquaculture technology, and in particular to a water purification and filtration device for aquaculture. Background Technology
[0002] Currently, aquaculture in my country is developing towards high-density, intensive, and large-scale operations. However, due to corresponding technological lags, high-density and intensive farming often lead to eutrophication, reduced dissolved oxygen levels, excessive levels of harmful substances in ponds, and frequent fish diseases, causing huge economic losses to the aquaculture industry. For example, feed loss and sedimentation at the bottom of the pond decompose and worsen the local environment, affecting water quality, causing poisoning of farmed organisms, and posing a significant threat to their health. This results in increasingly poor farming environments and frequent disease outbreaks.
[0003] An oily film easily forms on the surface of the water in aquaculture ponds. This film is difficult to remove. Most water purification devices draw water from the bottom, making it difficult to draw the oily film from the surface into the purification device. Therefore, it is difficult to remove. The oily film hinders the combination of oxygen and water, reducing the oxygen content in the water of the aquaculture pond, making it unsuitable for intensive breeding.
[0004] Therefore, it is necessary to provide water purification and filtration devices for aquaculture to solve the above-mentioned technical problems. Utility Model Content
[0005] To overcome the above-mentioned defects, this utility model provides a water purification and filtration device for aquaculture, which solves the technical problems in the prior art.
[0006] According to one aspect, at least one embodiment of the present invention provides a water purification and filtration device for aquaculture, comprising: a filter box with filtration function that can be installed on a ship's hull; an inlet is provided at the top of the filter box; the inlet is connected to the outlet of a water pump via an inlet pipe; the inlet of the water pump is connected to the outlet via a retractable suction pipe; the outlet is located at the top of a suction plate; a plurality of lower suction ports are provided on the side of the suction plate; the inner side of each lower suction port is connected to the outlet via a suction channel; and the suction channel is located on the suction plate. Inside, the top of the water-drawing plate is connected to the telescopic end of the lifting cylinder, the fixed end of the lifting cylinder is connected to the bottom of the support plate, and the other end of the bottom of the support plate is connected to the fixed seat placed on the hull through a connecting plate. The bottom of the filter box is provided with a water outlet, which is connected to the water outlet pipe through a water outlet solenoid valve. The bottom of the filter box is connected to the top of the mounting base through a bracket. The side of the filter box is provided with multiple filter holes, which are movably connected to the first filter frame. The inner side of the first filter frame is equipped with either a filter membrane or an adsorption plate.
[0007] Preferably, a second filter hole is provided on the side of the filter box above the filter hole, the second filter hole is movably connected to a second filter frame, and a filter screen is installed on the inner side of the second filter frame.
[0008] Preferably, the sides of the first filter frame and the second filter frame are provided with a first tension ring and a second tension ring, and the first tension ring and the second tension ring are U-shaped.
[0009] Preferably, there are two lifting cylinders, which are symmetrically arranged on the top of the water pumping plate.
[0010] Preferably, the two sides of the pumping plate are respectively connected to a first guide block and a second guide block, the first guide block and the second guide block are respectively slidably connected to a first guide groove and a second guide groove, the first guide groove and the second guide groove are respectively disposed on the opposite sides of the first guide plate and the second guide plate, and the top of the first guide plate and the second guide plate are respectively connected to the two ends of the bottom of the support plate.
[0011] Preferably, the top of the first guide block and the second guide block are respectively provided with a first limiting hole and a second limiting hole, the first limiting hole and the second limiting hole are respectively slidably connected to a first limiting shaft and a second limiting shaft, the top of the first limiting shaft is connected to the top of the first guide groove, and the top of the second limiting shaft is connected to the top of the second guide groove.
[0012] It should be noted that by setting the first guide block and the second guide block, the stability of the pumping plate moving up and down can be improved by limiting the first guide groove and the second guide groove, and the stability of the pumping plate moving up and down can be further improved by setting the first limit shaft and the second limit shaft.
[0013] Preferably, a lower filter screen is installed inside the lower water inlet, and one end of the lower water inlet pipe is connected to the inner wall of the lower water inlet by a thread.
[0014] Preferably, the lower pumping pipe includes a rear pipe body and a front pipe body. One end of the rear pipe body is threadedly connected to the lower pumping port, and the other end of the rear pipe body is connected to one end of the front pipe body. The rear pipe body is cylindrical in shape, and the front pipe body is frustum-shaped. The size of the end of the front pipe body connected to the rear pipe body is smaller than the size of the other end of the front pipe body.
[0015] Preferably, the bottom of the pumping plate is connected to a pressure block made of metal.
[0016] Preferably, one end of the bottom of the support plate is connected to the side of the connecting plate by a reinforcing plate, and there are multiple reinforcing plates.
[0017] Compared with related technologies, the water purification and filtration device for aquaculture provided by this utility model has the following beneficial effects:
[0018] This invention, by incorporating a lifting cylinder, allows the water-drawing plate to move up and down through its extension and retraction. This controls the depth of the upper and lower water-drawing holes on the plate entering the water, facilitating the simultaneous extraction of oil film and water floating on the surface through the lower water-drawing hole. The oil-film-containing water is then pumped into a filter box, where the oil droplets are adsorbed and filtered by the filter membrane or adsorption plate on the first filter frame. This effectively solves the problem that oil film hinders the combination of oxygen and water, reducing the oxygen content in the aquaculture pond and impacting intensive farming.
[0019] This utility model can perform preliminary filtration of oily pool water by setting a second filter frame with a filter screen, filtering out impurities in the pool water and improving the subsequent filtration efficiency of oil droplets in the oily pool water.
[0020] This invention improves the stability of the pumping plate's vertical movement by setting a first guide block and a second guide block, which are limited by the first guide groove and the second guide groove. Furthermore, it further improves the stability of the pumping plate's vertical movement by setting a first limiting shaft and a second limiting shaft. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.
[0022] Figure 1 A schematic diagram of a preferred embodiment of the water purification and filtration device for aquaculture provided by this utility model;
[0023] Figure 2 for Figure 1 The diagram shown is a structural schematic of a water purification and filtration device for aquaculture, viewed from the rear.
[0024] Figure 3 for Figure 1 The diagram shows the structure of the first guide plate and the second guide plate.
[0025] Figure 4 for Figure 1 The diagram shows the structure of the pumping plate.
[0026] The following are the labeling elements in the diagram: 1. Filter box; 2. Mounting base; 3. Inlet pipe; 4. Outlet pipe; 5. First filter frame; 6. First tension ring; 7. Second filter frame; 8. Second tension ring; 9. Water pump; 10. Pumping pipe; 11. Pumping plate; 12. Lower pumping pipe; 13. Support plate; 14. Connecting plate; 15. Fixing base; 16. Reinforcing plate; 17. Lifting cylinder; 18. Lower pressure block; 19. First guide plate; 20. Second guide plate; 21. First guide groove; 22. First limiting shaft; 23. Second guide groove; 24. Second limiting shaft; 25. Rear pipe body; 26. Front pipe body; 27. Lower pumping port; 28. Lower filter screen; 29. First guide block; 30. First limiting hole; 31. Second guide block; 32. Second limiting hole; 33. Pumping port. Detailed Implementation
[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it.
[0028] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between 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.
[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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.
[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0033] refer to Figures 1 to 4 The present invention provides a water purification and filtration device for aquaculture, comprising: a filter box 1 with filtration function that can be installed on a ship hull; the top of the filter box 1 is provided with a water inlet; the water inlet is connected to the outlet of a water pump 9 through a water inlet pipe 3; the water inlet of the water pump 9 is connected to a water outlet 33 through a retractable water suction pipe 10; the water outlet 33 is located on the top of a water suction plate 11; the side of the water suction plate 11 is provided with multiple lower water suction ports 27; the inner side of each lower water suction port 27 is connected to the water outlet 33 through a water suction channel located inside the water suction plate 11. The top of the pumping plate 11 is connected to the telescopic end of the lifting cylinder 17, the fixed end of the lifting cylinder 17 is connected to the bottom of the support plate 13, and the other end of the bottom of the support plate 13 is connected to the fixed seat 15 placed on the hull through the connecting plate 14. The bottom of the filter box 1 is provided with a water outlet, which is connected to the water outlet pipe 4 through a water outlet solenoid valve. The bottom of the filter box 1 is connected to the top of the mounting base 2 through a bracket. The side of the filter box 1 is provided with multiple filter holes, which are movably connected to the first filter frame 5. The inner side of the first filter frame 5 is equipped with either a filter membrane or an adsorption plate.
[0034] It should be noted that the filter membrane, adsorption plate, or filter cloth are all existing technologies. The filter membrane is an ultrafiltration membrane, which is a filtration membrane with a specific pore size, typically ranging from 1 to 100 nanometers. This type of membrane can filter out suspended solids, impurities, organic matter, and other large molecules in a solution, while allowing water and small molecules to pass through. In the oil-water separation process, the ultrafiltration membrane can effectively intercept oil droplets, achieving effective oil-water separation. The adsorption plate can be an activated carbon adsorption plate to adsorb oil droplets in the water.
[0035] By setting up a lifting cylinder 17, the extension and retraction of the lifting cylinder 17 can drive the water-drawing plate 11 to move up and down, which can control the depth of the upper and lower water-drawing holes of the water-drawing plate 11 into the water. This facilitates the simultaneous extraction of oil film floating on the water surface along with water through the lower water-drawing hole. The water containing the oil film is then sent into the filter box 1 by the water pump 9, and the oil droplets in the water are adsorbed and filtered by the filter membrane or adsorption plate on the first filter frame 5. The filtered water is then sent back into the aquaculture pond under the action of gravity. Through the above structure, the oil film on the water surface is effectively drawn into the filter box 1 and then removed from the water surface. This effectively solves the problem that the oil film hinders the combination of oxygen and water, resulting in a decrease in the oxygen content of the water in the aquaculture pond and affecting intensive breeding.
[0036] In the embodiments of this utility model, reference is made to Figure 1 As shown, a second filter hole is provided on the side of the filter box 1 above the filter hole. The second filter hole is movably connected to the second filter frame 7, and a filter screen is installed on the inner side of the second filter frame 7.
[0037] It should be noted that by setting a second filter frame 7 with a filter screen, the oily pool water can be initially filtered to remove impurities and improve the subsequent filtration efficiency of oil droplets in the oily pool water.
[0038] In the embodiments of this utility model, reference is made to Figure 1 As shown, the first filter frame 5 and the second filter frame 7 are provided with a first tension ring 6 and a second tension ring 8 on their sides, and the first tension ring 6 and the second tension ring 8 are U-shaped.
[0039] It should be noted that by setting the first tension ring 6 and the second tension ring 8 in a U-shape, it is convenient to pull out the first filter frame 5 and the second filter frame 7 by holding the first tension ring 6 and the second tension ring 8.
[0040] In the embodiments of this utility model, reference is made to Figure 3 As shown, there are two lifting cylinders 17, which are symmetrically arranged on the top of the water pumping plate 11.
[0041] It should be noted that by setting up double lifting cylinders 17, the force on the water pumping plate 11 can be evenly distributed, thereby improving the stability of the water pumping plate 11 moving up and down.
[0042] In the embodiments of this utility model, reference is made to Figure 3As shown, the two sides of the pumping plate 11 are respectively connected to the first guide block 29 and the second guide block 31. The first guide block 29 and the second guide block 31 are respectively slidably connected to the first guide groove 21 and the second guide groove 23. The first guide groove 21 and the second guide groove 23 are respectively arranged on the opposite sides of the first guide plate 19 and the second guide plate 20. The tops of the first guide plate 19 and the second guide plate 20 are respectively connected to the two ends of the bottom of the support plate 13.
[0043] In the embodiments of this utility model, reference is made to Figure 3 , Figure 4 As shown, the top of the first guide block 29 and the second guide block 31 are respectively provided with a first limiting hole 30 and a second limiting hole 32. The first limiting hole 30 and the second limiting hole 32 are slidably connected to the first limiting shaft 22 and the second limiting shaft 24, respectively. The top and bottom of the first limiting shaft 22 are respectively connected to the top and bottom of the first guide groove 21, and the top and bottom of the second limiting shaft 24 are respectively connected to the top and bottom of the second guide groove 23.
[0044] It should be noted that by setting the first guide block 29 and the second guide block 31, the stability of the pumping plate 11 moving up and down can be improved by limiting the first guide groove 21 and the second guide groove 23, and the stability of the pumping plate 11 moving up and down can be further improved by setting the first limiting shaft 22 and the second limiting shaft 24.
[0045] In the embodiments of this utility model, reference is made to Figure 4 As shown, a lower filter screen 28 is installed inside the lower water inlet 27, and one end of the lower water inlet pipe 12 is connected to the inner wall of the lower water inlet 27 by a thread.
[0046] It should be noted that by setting the lower filter screen 28, the pool water can be filtered to prevent large foreign objects from entering the water pumping plate 11 and clogging the lower water pumping port 27 and water pumping port 33 of the water pumping plate 11, thus affecting subsequent water pumping operations.
[0047] In the embodiments of this utility model, reference is made to Figure 3 As shown, the lower water suction pipe 12 includes a rear pipe body 25 and a front pipe body 26. One end of the rear pipe body 25 is threadedly connected to the lower water suction port 27, and the other end of the rear pipe body 25 is connected to one end of the front pipe body 26. The rear pipe body 25 is cylindrical, and the front pipe body 26 is frustum-shaped. The size of the end of the front pipe body 26 connected to the rear pipe body 25 is smaller than the size of the other end of the front pipe body 26.
[0048] It should be noted that by setting a frustum-shaped front pipe body 26 and designing the front pipe body 26 to be larger on the outside and smaller on the inside, the contact area between the lower pumping pipe 12 and the pool water is increased, thus improving the pumping operation.
[0049] In the embodiments of this utility model, reference is made to Figure 4 As shown, a pressure block 18 made of metal is connected to the bottom of the pumping plate 11.
[0050] It should be noted that by setting the pressure block 18, the downward force of the pressure block 18 can help the pumping plate 11 overcome the buoyancy of the water and enter the water more effectively for pumping operations.
[0051] In the embodiments of this utility model, reference is made to Figure 2 As shown, one end of the bottom of the support plate 13 is connected to the side of the connecting plate 14 through a reinforcing plate 16, and there are multiple reinforcing plates 16.
[0052] It should be noted that by setting the reinforcing plate 16, the bottom of the support plate 13 can be supported, preventing excessive force on one end of the support plate 13, which could cause the support plate 13 to break and affect subsequent use.
[0053] The working principle of the water purification and filtration device for aquaculture provided by this utility model is as follows:
[0054] By setting up a lifting cylinder 17, the extension and retraction of the lifting cylinder 17 can drive the water-drawing plate 11 to move up and down, which can control the depth of the upper and lower water-drawing holes of the water-drawing plate 11 into the water. This facilitates the simultaneous extraction of oil film and water floating on the water surface through the lower water-drawing hole. The water containing the oil film is then sent into the filter box 1 by the water pump 9, and the oil droplets in the water are adsorbed and filtered by the filter membrane or adsorption plate on the first filter frame 5. The filtered water is then sent back into the aquaculture pond under the action of gravity. Through the above structure, the oil film on the water surface is effectively drawn into the filter box 1, and then the oil film is removed from the water surface, effectively solving the problem that the oil film hinders the combination of oxygen and water.
[0055] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A water quality purifying filter device for aquaculture, characterized by, include: A filter box (1) with filtration function can be installed on the hull. The top of the filter box (1) is provided with a water inlet. The water inlet is connected to the outlet of the water pump (9) through a water inlet pipe (3). The water inlet of the water pump (9) is connected to the water outlet (33) through a retractable water suction pipe (10). The water outlet (33) is located on the top of the water suction plate (11). The side of the water suction plate (11) is provided with multiple lower water suction ports (27). The inner side of the lower water suction ports (27) is connected to the water outlet (33) through a water suction channel. The water suction channel is located inside the water suction plate (11). The top of the water suction plate (11) is connected to the lifting air... The telescopic end of the cylinder (17) is connected, the fixed end of the lifting cylinder (17) is connected to the bottom of the support plate (13), the other end of the bottom of the support plate (13) is connected to the fixed seat (15) placed on the hull through the connecting plate (14), the bottom of the filter box (1) is provided with a water outlet, the water outlet is connected to the water outlet pipe (4) through the water outlet solenoid valve, the bottom of the filter box (1) is connected to the top of the mounting base (2) through the bracket, the side of the filter box (1) is provided with multiple filter holes, the filter holes are movably connected to the first filter frame (5), and the inner side of the first filter frame (5) is equipped with either a filter membrane or an adsorption plate.
2. The water quality purifying filter apparatus for aquaculture according to claim 1, characterized by, The side of the filter box (1) above the filter hole is provided with a second filter hole, the second filter hole is movably connected to the second filter frame (7), and a filter screen is installed on the inner side of the second filter frame (7).
3. The water quality purifying filter apparatus for aquaculture according to claim 2, characterized by, The first filter frame (5) and the second filter frame (7) are provided with a first tension ring (6) and a second tension ring (8) on their sides. The first tension ring (6) and the second tension ring (8) are U-shaped.
4. The water purification and filtration device for aquaculture according to claim 1, characterized in that, The number of lifting cylinders (17) is two, and the two lifting cylinders (17) are symmetrically arranged on the top of the water pumping plate (11).
5. The water quality purifying filter apparatus for aquaculture according to claim 1, characterized by The two sides of the pumping plate (11) are respectively connected to the first guide block (29) and the second guide block (31). The first guide block (29) and the second guide block (31) are respectively slidably connected to the first guide groove (21) and the second guide groove (23). The first guide groove (21) and the second guide groove (23) are respectively set on the opposite sides of the first guide plate (19) and the second guide plate (20). The tops of the first guide plate (19) and the second guide plate (20) are respectively connected to the two ends of the bottom of the support plate (13).
6. The water quality purifying filter apparatus for aquaculture according to claim 5, characterized by The top of the first guide block (29) and the second guide block (31) are respectively provided with a first limiting hole (30) and a second limiting hole (32). The first limiting hole (30) and the second limiting hole (32) are respectively slidably connected to the first limiting shaft (22) and the second limiting shaft (24). The top and bottom of the first limiting shaft (22) are respectively connected to the top and bottom of the first guide groove (21), and the top and bottom of the second limiting shaft (24) are respectively connected to the top and bottom of the second guide groove (23).
7. The water quality purifying filter apparatus for aquaculture according to claim 1, characterized by The lower water inlet (27) is equipped with a lower filter screen (28), and the inner wall of the lower water inlet (27) is connected to one end of the lower water pipe (12) by a thread.
8. The water quality purifying filter apparatus for aquaculture according to claim 7, characterized by The lower water suction pipe (12) includes a rear pipe body (25) and a front pipe body (26). One end of the rear pipe body (25) is threaded to the lower water suction port (27), and the other end of the rear pipe body (25) is connected to one end of the front pipe body (26). The rear pipe body (25) is cylindrical, and the front pipe body (26) is frustum-shaped. The size of the end of the front pipe body (26) connected to the rear pipe body (25) is smaller than the size of the other end of the front pipe body (26).
9. The water quality purifying filter apparatus for aquaculture according to claim 1, characterized by The bottom of the pump plate (11) is connected to a pressure block (18) made of metal.
10. The water quality purifying filter apparatus for aquaculture according to claim 1, characterized by One end of the bottom of the support plate (13) is connected to the side of the connecting plate (14) through a reinforcing plate (16), and there are multiple reinforcing plates (16).