Aquaculture recirculating water filtration apparatus

Abstract

The utility model belongs to the aquaculture technical field especially relates to a kind of filtering equipment for aquaculture circulating water, including circulating water filter cylinder, the water inlet and water outlet are respectively arranged in the upper and lower ends of circulating water filter cylinder, coarse filter screen and fine filter screen are sequentially arranged in the inside lower end of circulating water filter cylinder, the dismounting mouth is set up in the middle part of the front end of circulating water filter cylinder, supporting frame is installed in the middle part of circulating water filter cylinder, and the slow flow cylinder is placed on the supporting frame. By being provided with the dismounting mouth in the middle part of circulating water filter cylinder, and the slow flow cylinder that is attached to the inner wall of circulating water filter cylinder is installed in the dismounting mouth, the slow flow cylinder can be effectively prevented from tilting, the water flow is buffered and preliminary impurity separation is realized, and the impurities are intercepted in the collecting tank, then double sealing is formed by sealing plate and sealing sleeve, the airtightness during normal operation of equipment is ensured, and water leakage is effectively prevented.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, and in particular to a filtration device for aquaculture recirculating water. Background Technology

[0002] A circulating water filter is a device used in circulating water systems for applications such as aquaculture to filter and purify water. Its main function is to remove suspended solids, particulate matter, organic matter, and other impurities from the water to maintain cleanliness and suitable water quality conditions.

[0003] Chinese Patent CN221287015U, authorized by the Ministry of Industry and Information Technology, discloses a filtration device for circulating water in aquaculture. The device includes a circulating water filter cylinder, a coarse filter screen and a fine filter screen fixedly connected inside the filter cylinder, and a lifting mechanism and a flow-regulating mechanism disposed inside the filter cylinder. The coarse filter screen is located above the fine filter screen within the filter cylinder. This invention relates to the technical field of circulating water filtration equipment for aquaculture. During the process of circulating water entering through the inlet, passing through the coarse and fine filter screens, and exiting through the outlet, the flow-regulating plate is hinged to the flow-regulating frame. Therefore, the lifting mechanism can rotate the flow-regulating plate around the hinge, opening the flow-regulating plate from the flow-regulating frame to allow circulating water to pass through. Furthermore, when the circulating water passes through the flow-regulating plate, the plate can withstand the impact and prevent impurities from directly hitting or impacting the coarse filter screen, thus ensuring the filtration quality of the coarse filter screen.

[0004] However, the above-mentioned technical solution still has the following shortcomings in actual use. In this solution, the flow slowing frame is installed by simply supporting the inner wall of the filter cylinder. In the aquaculture recirculating water system, the inlet water pressure will change dynamically with the aquaculture demand, and the flow slowing frame needs to withstand the impact of the water flow continuously. After being subjected to long-term impact, the flow slowing frame is prone to loosening of the connection with the inner wall of the filter cylinder, which will lead to tilting or even displacement, directly causing the flow slowing function to fail. Therefore, we propose a filtration device for aquaculture recirculating water to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a filtration device for recirculating aquaculture systems to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a filtration device for circulating water in aquaculture, comprising a circulating water filter cylinder, wherein an inlet and an outlet are respectively provided at the upper and lower ends of the circulating water filter cylinder, a coarse filter screen and a fine filter screen are sequentially provided at the lower end of the circulating water filter cylinder, a disassembly port is provided at the middle of the front end of the circulating water filter cylinder, a support frame is installed in the middle of the circulating water filter cylinder, a flow-slowing cylinder is placed on the support frame, a collection groove is provided at the top of the flow-slowing cylinder, a sealing plate is provided at the front end of the flow-slowing cylinder, and a cover is connected to the outside of the circulating water filter cylinder through a drive assembly.

[0007] As an improved technical solution, the drive assembly includes a mounting base fixed to the side end of the circulating water filter cartridge, a lead screw rotatably connected to the mounting base, a motor mounted at the bottom end of the mounting base, the output end of the motor connected to the bottom end of the lead screw, a threaded sleeve mounted on the outer wall of the side end of the sleeve, the threaded sleeve being threadedly connected to the lead screw, a guide post mounted on the back of the circulating water filter cartridge, a guide sleeve mounted on the outer wall of the back of the sleeve, and the guide post penetrating inside the guide sleeve.

[0008] As an improved technical solution, an impact plate is installed at the upper end of the inside of the circulating water filter cylinder. Multiple sets of protrusions are installed on the impact plate, and the position of the impact plate is directly opposite the rear end of the water inlet.

[0009] As an improved technical solution, a sealing ring is embedded around the periphery of the sealing plate.

[0010] As an improved technical solution, the front end of the flow-slowing cylinder is hinged with a hidden handle.

[0011] As an improved technical solution, a drain valve is provided at the bottom of the circulating water filter cylinder.

[0012] As an improved technical solution, the motor is electrically connected to an external controller via wires.

[0013] After adopting the above technical solution, the beneficial effects of this utility model are: I. This utility model features a disassembly port in the middle of the circulating water filter cylinder, into which a flow-retarding cylinder is installed, fitting snugly against the inner wall of the filter cylinder. This effectively prevents the flow-retarding cylinder from tilting. When water enters from the inlet, it impacts the flow-retarding cylinder, reducing its internal flow velocity and changing its direction. This buffers the water flow and performs initial impurity separation, trapping the impurities in the collection tank. A double seal is formed by the sealing plate and the cover, ensuring the airtightness of the equipment during normal operation and effectively preventing leakage. When maintenance is required, the drive component moves the cover, allowing the flow-retarding cylinder to be removed through the disassembly port for cleaning. The modular design of the flow-retarding cylinder facilitates disassembly and cleaning, greatly improving the convenience of equipment maintenance and ensuring the continuous stability of the flow-retarding function.

[0014] II. This utility model has a lead screw installed on the outside of the circulating water filter cylinder. The motor can be started to drive the lead screw to rotate, and the threaded sleeve can move the sealing sleeve up and down under the action of the thread. The cooperation between the guide column and the guide sleeve ensures the smooth and precise movement of the sealing sleeve, thereby realizing the reliable opening and closing of the disassembly port. It realizes the automation of the opening and closing of the disassembly port, which is labor-saving and precise, and improves the convenience of using the equipment. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a bottom view of the structure of this utility model; Figure 3 This is a schematic diagram of the structure in the first active state of this utility model; Figure 4 This is a schematic diagram of the second active state structure of this utility model; Figure 5 This is a partial cross-sectional structural diagram of the present invention.

[0016] In the diagram: 1. Circulating water filter cartridge; 2. Inlet; 3. Outlet; 4. Coarse filter screen; 5. Fine filter screen; 6. Disassembly port; 7. Flow buffer; 8. Collection tank; 9. Sealing plate; 10. Cover; 11. Mounting base; 12. Lead screw; 13. Threaded sleeve; 14. Motor; 15. Guide column; 16. Guide sleeve; 17. Support frame; 18. Impact plate; 19. Raised strip. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] This utility model provides a technical solution as follows: Figures 1 to 5 As shown in this embodiment, a filtration device for circulating water in aquaculture includes a circulating water filter cylinder 1. The circulating water filter cylinder 1 has an inlet 2 and an outlet 3 at its upper and lower ends, respectively. The lower end of the circulating water filter cylinder 1 is provided with a coarse filter screen 4 and a fine filter screen 5 in sequence. The middle of the front end of the circulating water filter cylinder 1 has a disassembly port 6. A support frame 17 is installed in the middle of the circulating water filter cylinder 1. A flow-slowing cylinder 7 is placed on the support frame 17. A collection trough 8 is provided at the top of the flow-slowing cylinder 7. A sealing plate 9 is provided at the front end of the flow-slowing cylinder 7. A cover 10 is connected to the outside of the circulating water filter cylinder 1 through a drive assembly.

[0019] A disassembly port 6 is provided in the middle of the circulating water filter cylinder 1, and a flow-retarding cylinder 7 that fits against the inner wall of the circulating water filter cylinder 1 is installed in the disassembly port 6. When water flows in from the inlet 2, it impacts the flow-retarding cylinder 7, which reduces the speed of the water flow inside and changes its direction, thereby achieving buffering of the water flow and initial separation of impurities. The impurities are trapped in the collection tank 8, and a double seal is formed by the sealing plate 9 and the cover 10 to ensure the airtightness of the equipment during normal operation and effectively prevent water leakage. When maintenance is required, the drive component moves the cover 10 to remove it, and the flow-retarding cylinder 7 can be taken out through the disassembly port 6 for cleaning. The modular design of the flow-retarding cylinder 7 makes it easy to disassemble and clean, greatly improving the convenience of equipment maintenance and ensuring the continuous stability of the flow-retarding function.

[0020] In other embodiments, the drive assembly includes a mounting base 11 fixed to the side end of the circulating water filter cartridge 1, a lead screw 12 rotatably connected to the mounting base 11, a motor 14 mounted at the bottom end of the mounting base 11, the output end of the motor 14 connected to the bottom end of the lead screw 12, a threaded sleeve 13 mounted on the outer wall of the side end of the cover 10, the threaded sleeve 13 being threadedly connected to the lead screw 12, a guide post 15 mounted on the back of the circulating water filter cartridge 1, a guide sleeve 16 mounted on the outer wall of the back of the cover 10, and the guide post 15 penetrating inside the guide sleeve 16. By installing a lead screw 12 on the outside of the circulating water filter cartridge 1, the motor 14 can be started, causing the motor 14 to drive the lead screw 12 to rotate. The threaded sleeve 13, under the action of the thread, drives the sealing sleeve 10 to rise and fall. The cooperation between the guide column 15 and the guide sleeve 16 ensures the smooth and precise movement of the sealing sleeve 10, thereby realizing the reliable opening and closing of the disassembly port 6. This automates the opening and closing of the disassembly port 6, making the operation labor-saving and precise, and improving the convenience of using the equipment.

[0021] In other embodiments, an impact plate 18 is installed at the upper end of the inside of the circulating water filter cartridge 1. Multiple sets of protrusions 19 are installed on the impact plate 18, and the position of the impact plate 18 is directly opposite the rear end of the water inlet 2. This design allows water to flow from the inlet 2 onto the impact plate 18 with protrusions 19, further dispersing the water flow, reducing the impact force, enhancing the flow slowing effect, and preventing the flow slowing cylinder 7 from being directly impacted by a large water flow.

[0022] In other embodiments, a sealing ring is fitted around the periphery of the sealing plate 9; With this design, when the sealing plate 9 closes the disassembly port 6, the embedded sealing ring is compressed between the sealing plate 9 and the disassembly port 6, forming a flexible seal, which enhances the sealing effect at the disassembly port 6, effectively preventing high-pressure water from leaking from the gap of the disassembly port 6, and ensuring that all water flows through the preset filtration path.

[0023] In other embodiments, the front end of the flow-retarding cylinder 7 is hinged with a concealed handle; With this design, the operator can pull out the hidden handle from the state of being attached to the surface of the flow-retarding cylinder 7, and then use the handle to remove the flow-retarding cylinder 7 from the disassembly port 6, making the cleaning operation simpler and more convenient.

[0024] In other embodiments, a drain valve is provided at the bottom of the circulating water filter cartridge 1; This design allows the drain valve to be opened periodically, directly discharging the thick, viscous particles that have settled at the bottom of the circulating water filter cartridge 1, thus preventing them from accumulating at the bottom.

[0025] In other embodiments, the motor 14 is electrically connected to an external controller via wires; This design allows the motor 14 to receive electrical signals from an external controller and move precisely according to instructions, thereby controlling the lifting and lowering of the cover 10.

[0026] This utility model provides a filtration device for recirculating aquaculture systems, the specific working principle of which is as follows: Under the action of the pump, circulating water enters the circulating water filter cartridge 1 from the inlet 2 at a relatively high flow rate. The water flow first impacts the impact plate 18 and the protrusions 19 on it. The protrusions 19 disperse and collide with the concentrated water flow, consuming a large amount of its kinetic energy and achieving the first buffering and deceleration.

[0027] After passing through the primary buffer, the water continues to flow downwards into the slow-flow cylinder 7. The cylinder wall structure of the slow-flow cylinder 7 forces the water flow to change direction and further reduces the flow velocity. Some of the larger particles in the water flow that lose kinetic energy due to the reduced velocity are trapped in the collection tank 8.

[0028] The water flowing out of the slow-flow tube 7 has become relatively gentle, and then passes through the coarse filter 4 and the fine filter 5 in sequence, thereby achieving fine purification of the water quality. The purified water is discharged from the outlet 3 and returned to the aquaculture system for recycling.

[0029] When the equipment is running normally, the sealing plate 9 and the cover 10 tightly seal the disassembly port 6 under the action of the drive assembly, ensuring the system is airtight. When maintenance is required, the motor 14 is started by the controller, which drives the cover 10 to move upward, and the operator can open the disassembly port 6 and directly pull out the slow flow cylinder 7 to clean the collection tank 8.

[0030] The electrical components mentioned in this article are all electrically connected to an external main controller and industrial power supply, and the main controller can be a conventional known device such as a computer that provides control.

[0031] 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 filtration device for recirculating aquaculture water, comprising a recirculating water filter cylinder (1), wherein an inlet (2) and an outlet (3) are respectively provided at the upper and lower ends of the recirculating water filter cylinder (1), and a coarse filter screen (4) and a fine filter screen (5) are sequentially provided at the lower end of the interior of the recirculating water filter cylinder (1), characterized in that: The circulating water filter cartridge (1) has a disassembly port (6) in the middle of its front end. A support frame (17) is installed in the middle of the circulating water filter cartridge (1). A slow-flow cylinder (7) is placed on the support frame (17). A collection groove (8) is provided at the top of the slow-flow cylinder (7). A sealing plate (9) is provided at the front end of the slow-flow cylinder (7). A cover (10) is connected to the outside of the circulating water filter cartridge (1) through a drive assembly.

2. The filtration device for recirculating aquaculture water according to claim 1, characterized in that: The drive assembly includes a mounting base (11) fixed to the side of the circulating water filter cylinder (1), a lead screw (12) rotatably connected to the mounting base (11), a motor (14) mounted at the bottom of the mounting base (11), the output end of the motor (14) connected to the bottom of the lead screw (12), a threaded sleeve (13) mounted on the outer wall of the side of the sleeve (10), the threaded sleeve (13) being threadedly connected to the lead screw (12), a guide post (15) mounted on the back of the circulating water filter cylinder (1), a guide sleeve (16) mounted on the outer wall of the back of the sleeve (10), and the guide post (15) penetrating inside the guide sleeve (16).

3. The filtration device for recirculating aquaculture water according to claim 1, characterized in that: An impact plate (18) is installed at the upper end of the circulating water filter cylinder (1). Multiple sets of protrusions (19) are installed on the impact plate (18), and the position of the impact plate (18) is directly opposite the rear end of the water inlet (2).

4. The filtration device for recirculating aquaculture water according to claim 1, characterized in that: The periphery of the sealing plate (9) is fitted with a sealing ring.

5. A filtration device for recirculating aquaculture systems according to claim 1, characterized in that: The front end of the slow-flow tube (7) is hinged with a hidden handle.

6. The filtration device for recirculating aquaculture water according to claim 1, characterized in that: The bottom of the circulating water filter cylinder (1) is equipped with a drain valve.

7. A filtration device for recirculating aquaculture systems according to claim 2, characterized in that: The motor (14) is electrically connected to an external controller via wires.

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