Filtering device for recirculating aquaculture
By using multi-stage buffering and activated carbon filtration in the recirculating aquaculture system, the problem of backflow impact affecting biological growth in existing systems has been solved, achieving stable filtration and purification of water flow and ensuring a stable aquaculture environment.
Patent Information
- Application Number
- CN202520612410.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-02
AI Technical Summary
The impact generated during the backflow of existing aquaculture filtration devices can easily affect the growth of farmed organisms.
A filtration device for recirculating aquaculture was designed, comprising a main body of the filtration device, a delivery pipe, a water pump, an inlet pipe, a drain pipe, a buffer tank, an activated carbon filter plate, and filter components. The device provides multi-stage buffering through primary and secondary buffer components, and the activated carbon filter plate adsorbs impurities, reducing the impact force of water flow. The device is also easy to maintain through a sealed cover.
It effectively reduces the impact of water flow, ensures smooth water flow, intercepts large particles of impurities, purifies water quality, maintains the stability of the aquaculture environment, and reduces interference with aquaculture organisms.
Smart Images

Figure CN223929254U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of recirculating aquaculture technology, and in particular to a filtration device for recirculating aquaculture. Background Technology
[0002] Aquaculture is an agricultural production activity in which humans utilize available waters for aquaculture, according to the ecological habits of the aquatic organisms and their requirements for aquatic environmental conditions, and employ aquaculture technology and facilities to cultivate aquatic economic animals and plants. As an important agricultural production activity, aquaculture plays a significant role and has advantages in providing food, raw materials, and maintaining ecological balance. Filtration devices are key equipment in aquaculture.
[0003] However, existing filtration devices for aquaculture generally use pumps to extract water for filtration and then return it to the aquaculture pond. Because the returned water has huge water pressure when it is discharged from the pipe, this impact will cause huge splashes when it hits the water surface, which will disturb the aquaculture organisms and even affect their growth.
[0004] Therefore, in order to address the problem that the impact generated during the recirculation of existing aquaculture filtration devices can easily affect the growth of cultured organisms, a filtration device for recirculating aquaculture can be designed. Utility Model Content
[0005] To overcome the problem that the impact generated by the backflow of existing aquaculture filtration devices can easily affect the growth of aquaculture organisms.
[0006] The technical solution of this utility model is as follows: a filtration device for recirculating aquaculture, comprising a filtration device body, a conveying pipe, a water pump, an inlet pipe, a drain pipe, a buffer tank, an activated carbon filter plate, and a filter assembly. The upper end of the filtration device body is fixedly connected to the conveying pipe. A water pump is fixedly installed at the end of the conveying pipe furthest from the filtration device body. An inlet pipe is fixed to the right side of the water pump. A drain pipe is fixed to the rear end of the filtration device body. A buffer tank is fixed to the end of the drain pipe furthest from the filtration device body. A primary buffer assembly is provided inside the buffer tank, including a buffer disc. A secondary buffer assembly is provided at the lower end of the buffer tank, including a buffer pad. A connector is fixed to the end of the conveying pipe near the filtration device body. A filter assembly is connected to the lower end of the connector, including a filter mesh. An activated carbon filter plate is connected to the inner side of the filtration device body. A sealing cover is snapped onto the front end of the filtration device body, and a handle is fixedly installed at the front end of the sealing cover.
[0007] Preferably, the powerful suction of the water pump ensures that the water source can be quickly introduced into the system, while the delivery pipeline ensures the stable transmission of water flow within the system. The primary buffer component reduces the impact force of the water flow during discharge, and the secondary buffer component further stabilizes the water flow to achieve multi-stage buffering. The filter component can initially intercept large particles of impurities, effectively reducing the burden on subsequent filter layers. The activated carbon filter plate can adsorb impurities, and the interlocking connection design between the sealing cover and the main body of the filter device facilitates daily maintenance by the user, ensuring the continuous and efficient operation of the device.
[0008] Preferably, the primary buffer assembly also includes a damper. The damper is fixedly installed at the bottom inner side of the buffer box, a buffer plate is fixed at the upper end of the damper, and a spring is fixed at the lower end of the buffer plate. Eight springs are provided.
[0009] Preferably, the secondary buffer assembly also includes drainage holes, with drainage holes provided on the outer surface of the buffer box, and the drainage holes being equidistantly distributed around the circumference.
[0010] Preferably, an extension arm is fixed to the lower end of the buffer box, and the extension arm is set in a one-to-one correspondence with the drain hole. A buffer pad is fixed to the side of the extension arm near the buffer box.
[0011] Preferably, the buffer pad has several grooves on the side near the buffer box, and several protrusions are fixed on the side of the buffer pad near the buffer box, with the grooves and protrusions being staggered.
[0012] Preferably, the filter assembly also includes a sealing ring, and the sealing ring is made of elastic rubber and attached to the surface of the connector.
[0013] Preferably, the lower end of the sealing ring is connected to an installation head, which is threadedly connected to the connector head, and a filter screen is fixed to the lower end of the installation head.
[0014] The beneficial effects of this utility model are:
[0015] This recirculating aquaculture filtration device effectively reduces the impact force of water flow during discharge through a buffer tank and its built-in primary buffer group, avoiding potential damage to aquaculture organisms. An external secondary buffer further stabilizes the water flow, ensuring smooth drainage. The filter components initially intercept large particles of impurities, and combined with activated carbon filter plates, adsorb and remove harmful substances such as residual chlorine, odors, and pigments from the water, purifying the water quality. This device not only achieves a highly efficient and orderly filtration process but also ensures stable water intake, reducing the impact on aquaculture organisms and thus helping to maintain a stable aquaculture environment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;
[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;
[0018] Figure 3 This is a three-dimensional cross-sectional view of the main body of the filter device of this utility model;
[0019] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the novel buffer box.
[0020] Explanation of reference numerals in the attached drawings: 1. Main body of the filter device; 2. Conveying pipe; 3. Water pump; 4. Inlet pipe; 5. Drain pipe; 6. Buffer tank; 7. Primary buffer assembly; 8. Secondary buffer assembly; 9. Connector; 10. Activated carbon filter plate; 11. Filter assembly; 12. Sealing cover; 13. Handle; 701. Damper; 702. Spring; 703. Buffer disc; 801. Drain hole; 802. Extension arm; 803. Buffer pad; 804. Groove; 805. Protrusion; 1101. Sealing ring; 1102. Mounting head; 1103. Filter screen bag. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figures 1-3This utility model provides an embodiment of a filtration device for recirculating aquaculture, comprising a filter body 1, a conveying pipe 2, a water pump 3, an inlet pipe 4, a drain pipe 5, a buffer tank 6, an activated carbon filter plate 10, and a filter assembly 11. The conveying pipe 2 is fixedly connected to the upper end of the filter body 1. The water pump 3 is fixedly installed at the end of the conveying pipe 2 away from the filter body 1. The inlet pipe 4 is fixed to the right side of the water pump 3. The drain pipe 5 is fixed to the rear end of the filter body 1. The buffer tank 6 is fixed to the end of the drain pipe 5 away from the filter body 1. A primary buffer assembly 7 is provided inside the buffer tank 6, including a buffer disc 703. A secondary buffer assembly 8 is provided at the lower end of the buffer tank 6, including a buffer pad 803. A connector 9 is fixed to the end of the conveying pipe 2 near the filter body 1, and the lower end of the connector 9 is connected to a filter assembly. Component 11, the filter assembly 11 includes a filter screen 1103, an activated carbon filter plate 10 connected to the inner side of the filter device body 1, a sealing cover 12 snapped onto the front end of the filter device body 1, and a handle 13 fixedly installed at the front end of the sealing cover 12. The powerful suction of the water pump 3 ensures that the water source can be quickly introduced into the system, and the delivery pipe 2 ensures the stable transmission of water flow in the system. The primary buffer assembly 7 reduces the impact force of the water flow when it is discharged, and the secondary buffer assembly 8 further stabilizes the water flow to achieve multi-stage buffering. The filter assembly 11 can initially intercept large particulate impurities, effectively reducing the burden on subsequent filter layers. The activated carbon filter plate 10 can adsorb impurities. The snap-fit connection design between the sealing cover 12 and the filter device body 1 facilitates daily maintenance by the user and ensures the continuous and efficient operation of the device.
[0023] Please see Figures 2-4In this embodiment, the primary buffer assembly 7 further includes a damper 701. The damper 701 is fixedly installed on the inner bottom of the buffer box 6. A buffer plate 703 is fixed to the upper end of the damper 701, and a spring 702 is fixed to the lower end of the buffer plate 703. Eight springs 702 are provided. Through the cooperation of the damper 701 and multiple springs 702, the buffer plate 703 can effectively offset the impact force when facing high-speed water flow, so that the water flow is stable. The secondary buffer assembly 8 also includes a drain hole 801. The drain hole 801 is opened on the outer surface of the buffer box 6. The drain hole 801 is circumferentially equidistant. Through multiple drain holes 801, the water flow can be more evenly distributed and discharged, reducing the problem of excessive local pressure and improving drainage efficiency. An extension arm 802 is fixed to the lower end of the buffer box 6. The extension arm 802 is set one-to-one with the drain hole 801. A buffer pad 803 is fixed to the side of the extension arm 802 near the buffer box 6, so that the water flow is more stable. The buffer pad 803 can effectively offset the impact force when facing high-speed water flow. The buffering effect is further enhanced. Several grooves 804 are provided on the side of the buffer pad 803 near the buffer box 6, and several protrusions 805 are fixed on the side of the buffer pad 803 near the buffer box 6. The grooves 804 and protrusions 805 are staggered. The design of the grooves 804 and protrusions 805 on the buffer pad 803 can greatly increase its surface area, so that the water flow can come into full contact with the buffer pad 803, thereby improving the buffering effect. The filter assembly 11 also includes a sealing ring 1101. The surface of the connector 9 is connected to the sealing ring 1101. The sealing ring 1101 is made of elastic rubber. The sealing ring 1101 made of elastic rubber can improve the sealing of the connection. The lower end of the sealing ring 1101 is connected to the mounting head 1102. The mounting head 1102 is threadedly connected to the connector 9. The lower end of the mounting head 1102 is fixed with a filter screen 1103. The design of the threaded connection between the mounting head 1102 and the connector 9 makes the replacement of the filter screen 1103 more convenient and quick.
[0024] When in operation, the external power supply is first turned on to turn on the water pump 3. The strong suction allows the water to be filtered to be quickly introduced into the main body 1 of the filter device through the delivery pipe 2. Then, it is filtered through the filter screen 1103 and the activated carbon filter plate 10 in sequence. The purified water is then transported into the buffer tank 6 through the drain pipe 5. The water then falls onto the buffer plate 703. At this time, the damper 701 provides motion resistance and the spring 702 provides additional elastic buffering, which can achieve initial buffering. Then, the purified water is transported from the drain hole 801 to the buffer pad 803. At this time, the groove 804 and the protrusion 805 on the buffer pad 803 can achieve a further buffering effect. Finally, the purified water will be smoothly discharged from the extension arm 802.
[0025] Through the above steps, the combination of filter components and activated carbon filter plates can adsorb impurities and purify water quality. The cooperation of primary and secondary buffer components can achieve multi-stage buffering to slow down the water flow rate and solve the problem that the impact generated by the backflow of existing aquaculture filtration devices can easily affect the growth of aquaculture organisms.
[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A filtration device for recirculating aquaculture, comprising a filter body (1); characterized in that: It also includes a conveying pipe (2), a water pump (3), an inlet pipe (4), a drain pipe (5), a buffer tank (6), an activated carbon filter plate (10), and a filter assembly (11). The upper end of the filter device body (1) is fixedly connected to the conveying pipe (2). The end of the conveying pipe (2) away from the filter device body (1) is fixedly installed with the water pump (3). The right side of the water pump (3) is fixed with the inlet pipe (4). The rear end of the filter device body (1) is fixed with the drain pipe (5). The end of the drain pipe (5) away from the filter device body (1) is fixed with the buffer tank (6). The inner side of the buffer tank (6) is provided with a primary buffer assembly (7). The primary buffer assembly (7) includes a buffer plate (703), and the lower end of the buffer box (6) is provided with a secondary buffer assembly (8). The secondary buffer assembly (8) includes a buffer pad (803). The end of the conveying pipe (2) near the filter device body (1) is fixed with a connector (9). The lower end of the connector (9) is connected to a filter assembly (11). The filter assembly (11) includes a filter screen (1103). The inner side of the filter device body (1) is connected with an activated carbon filter plate (10). The front end of the filter device body (1) is snapped with a sealing cover plate (12). The front end of the sealing cover plate (12) is fixedly installed with a handle (13).
2. The filtration device for recirculating aquaculture as described in claim 1, characterized in that: The primary buffer assembly (7) also includes a damper (701). The damper (701) is fixedly installed on the inner bottom of the buffer box (6). A buffer plate (703) is fixed on the upper end of the damper (701). A spring (702) is fixed on the lower end of the buffer plate (703). Eight springs (702) are provided.
3. The filtration device for recirculating aquaculture as described in claim 1, characterized in that: The secondary buffer assembly (8) also includes a drain hole (801). The outer surface of the buffer box (6) is provided with a drain hole (801), and the drain holes (801) are distributed equidistantly around the circumference.
4. The filtration device for recirculating aquaculture as described in claim 1, characterized in that: An extension arm (802) is fixed to the lower end of the buffer box (6). The extension arm (802) and the drain hole (801) are set in a one-to-one correspondence. A buffer pad (803) is fixed to the side of the extension arm (802) near the buffer box (6).
5. The filtration device for recirculating aquaculture as described in claim 4, characterized in that: The buffer pad (803) has several grooves (804) on the side near the buffer box (6), and several protrusions (805) are fixed on the side of the buffer pad (803) near the buffer box (6). The grooves (804) and protrusions (805) are staggered.
6. The filtration device for recirculating aquaculture as described in claim 1, characterized in that: The filter assembly (11) also includes a sealing ring (1101), and the surface of the connector (9) is connected to the sealing ring (1101), which is made of elastic rubber.
7. The filtration device for recirculating aquaculture according to claim 6, characterized in that: The lower end of the sealing ring (1101) is connected to the mounting head (1102), which is threadedly connected to the connector (9). The lower end of the mounting head (1102) is fixed with a filter screen (1103).