A fish waste separation device, an aquarium filtration system and an aquarium

Abstract

The application provides a fish excrement separation device, an aquarium filtering system and an aquarium. The fish excrement separation device comprises a water inlet, a water outlet and a sewage outlet, and is characterized in that it further comprises a first one-way valve, a second one-way valve, a first chamber, a second chamber, filter material, a filter screen, a first water pump, a second water pump, a motor and stirring blades; the first one-way valve and the second one-way valve are connected with the first chamber; the first water pump generates negative pressure in the first chamber by sucking water, and fish excrement in the water is intercepted by the filter material composed of particles; the second water pump pumps water to generate positive pressure in the first chamber, and the fish excrement intercepted by the filter material is discharged, so that the fish excrement separation device is automated, miniaturized and low-cost.

Description

Technical Field

[0001] This application relates to the field of fish waste separation technology, specifically to a fish waste separation device, an aquarium filtration system, and an aquarium. Background Technology

[0002] Fishkeeping is a Chinese tradition, and the number of fishkeeping enthusiasts is increasing. However, fishkeeping is not an easy task and requires good filtration equipment. Currently, fish waste separation devices include physical filtration and biological filtration. Physical filtration is used to filter fish waste, uneaten food, etc., to keep the aquarium water clear and clean. However, fish waste and uneaten food do not disappear from the aquarium; they are merely intercepted within the physical filtration system of the fish waste separation device, such as filter cotton. The longer fish waste remains in the fish waste separation device, the more harmful substances are produced, such as ammonia nitrogen and nitrites decomposed by microorganisms. Therefore, in order to remove fish waste from the aquarium system, people need to regularly clean the fish waste separation device or replace the filter media to remove harmful substances from the aquarium system, preventing toxic substances from harming or killing the fish. This increases the burden of fishkeeping and may even affect people's enthusiasm and motivation for fishkeeping. In addition, cleaning the fish waste separation device is inhumane, especially for people with obsessive-compulsive disorder, which is unacceptable and may affect the fish population.

[0003] Chinese patent CN209572893U discloses an automatic fish tank waste separator, including a fish waste isolation chamber, a waste suction pipe, and a submersible pump. A reducing head is fixedly connected to the top of the fish waste isolation chamber, and a water suction pipe is connected to the top of the reducing head. A wave generator is connected to one side of the water suction pipe, and an oxygen inlet pipe is fixedly connected to the top of the wave generator. A stainless steel filter screen is installed inside the fish waste isolation chamber, and a hollow sleeve is connected to the bottom of the fish waste isolation chamber. A transparent hollow observation window is fitted onto the bottom of the hollow sleeve, and a waste discharge valve is fixedly connected to the bottom of the transparent hollow observation window.

[0004] Another type of device for removing fish waste from aquariums is a sedimentation separator, which uses the weight of fish waste to settle into the fish waste collection area. Examples include vertical flow sedimentation devices and centrifugal separators. However, these devices cannot remove fish waste that floats on the water surface, fish waste that is suspended in the water, or small particles of fish waste, resulting in insufficient removal of fish waste.

[0005] However, the above-mentioned automatic fish tank waste separators and sediment separators still have the following drawbacks: the filter screen has a large pore size and low filtration accuracy; the stainless steel filter screen is prone to bacterial growth and blockage, requiring timely cleaning, which is time-consuming and laborious; and the accumulated fish waste needs to be manually discharged. Summary of the Invention

[0006] To address the problems existing in related technologies, according to one aspect of this application, a fish waste separation device is provided, comprising: an inlet, an outlet, and a drain outlet, characterized in that it further comprises: a first one-way valve, a second one-way valve, a first chamber, a second chamber, filter media, a filter screen, a first water pump, a second water pump, a motor, and stirring blades; wherein, the filter screen is disposed between the first chamber and the second chamber for supporting the filter media; the first one-way valve is disposed in a flow channel between the inlet and the first chamber and is configured to allow water to flow from the inlet to the first chamber; the second one-way valve is disposed in a flow channel between the first chamber and the drain outlet and is configured to allow water to flow from the first chamber to the drain outlet; the first water pump and the second water pump are disposed in a flow channel between the second chamber and the outlet, the first water pump causing water to flow from the inlet to the outlet, and the second water pump causing water to flow from the outlet to the drain outlet; the stirring blades are disposed in the first chamber and connected to the motor for generating water flow to drive the filter media to move.

[0007] Optionally, it also includes: a collection tank and a water level sensor, wherein the collection tank is used to store the discharged wastewater and the water level sensor is used to monitor the water level in the collection tank to prevent wastewater from overflowing.

[0008] Optionally, a float assembly is installed inside the collection tank, and the water level sensor is a magnetic switch.

[0009] Optionally, the float assembly includes a first magnet and a float, wherein a pivot point is provided between the magnet and the float.

[0010] Optionally, the second chamber also includes a second magnet for attracting the filter media passing through the filter screen, preventing the filter media from entering the first and second water pumps.

[0011] Optionally, it also includes a scraper, which is disposed in the second chamber and connected to the motor.

[0012] Optionally, the scraper includes a flexible structure to conform to the filter screen during scraping.

[0013] Optionally, the filter media is stainless steel granules.

[0014] According to another aspect of this application, an aquarium filtration system is provided, including biological filter media, characterized in that the aquarium filtration system further includes a fish waste separation device as described above, wherein a first water pump causes water to flow through the biological filter media.

[0015] According to another aspect of this application, an aquarium is provided, including a water storage container, characterized in that the aquarium further includes a fish waste separation device as described above, wherein the fish waste separation device is disposed within the water storage container.

[0016] The technical solutions provided by the embodiments of this application may include the following beneficial effects: The first and second check valves are connected to the first chamber. The first water pump draws water to create negative pressure in the first chamber, and the fish waste in the water is intercepted by the filter media composed of particles. The second water pump pumps water to create positive pressure in the first chamber, and the fish waste intercepted by the filter media is discharged, thereby realizing the automation, miniaturization and low cost of the fish waste separation device. In addition, by setting stirring blades in the first chamber to disperse the intercepted fish waste, peel off the fish waste adhering to the filter media, and clean the filter screen mesh during the movement of the filter media, the efficient separation of fish waste, the filter screen does not need to be cleaned and the fish waste separation is automated.

[0017] This application introduces a series of simplified concepts, which will be further explained in detail in the Detailed Description section. This application does not intend to limit the key features and essential technical features of the claimed technical solution, nor does it intend to determine the scope of protection of the claimed technical solution.

[0018] The advantages and features of this application are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The following drawings, which are incorporated herein by reference and are used to understand this application, illustrate embodiments of the invention and their descriptions to explain the principles of the invention. In the drawings, Figure 1 A schematic diagram of a fish waste separation device according to an exemplary embodiment of this application. Figure 1 .

[0020] Figure 2 A schematic diagram of a fish waste separation device according to an exemplary embodiment of this application. Figure 2 .

[0021] Figure 3 A schematic diagram of a fish waste separation device according to an exemplary embodiment of this application. Figure 3 .

[0022] Figure 4 A schematic diagram of a fish waste separation device according to an exemplary embodiment of this application. Figure 4 .

[0023] Figure 5 This is a schematic diagram of an aquarium filtration system according to an exemplary embodiment of this application.

[0024] Figure 6 This is a schematic diagram of an aquarium according to an exemplary embodiment of this application.

[0025] The above figures include the following reference numerals: 100. Fish waste separation device; 01. First one-way valve; 02. Second one-way valve; 03. First chamber; 04. Second chamber; 05. Filter media; 06. Filter screen; 07. First water pump; 08. Second water pump; 09. Motor; 10. Stirring blade; 11. Collection tank; 12. Water level sensor; 13. Magnetic switch; 14. First magnet; 15. Float; 16. Rotating pivot; 20. Scraper; 21. Second magnet; 16. Inlet; 17. Outlet; 18. Drainage outlet Detailed Implementation

[0026] In the following description, numerous details are provided to enable a thorough understanding of this application. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the application, and that the application can be implemented without one or more of these details. Furthermore, to avoid confusion with this application, some technical features well-known in the art have not been described in detail.

[0027] According to one aspect of this application, see Figure 1 , Figure 2 , Figure 3 , Figure 4A fish waste separation device 100 is provided, including a first one-way valve 01, a second one-way valve 02, a first chamber 03, a second chamber 04, filter media 05, a filter screen 06, a first water pump 07, a second water pump 08, a motor 09, a stirring blade 10, a water inlet 16, a water outlet 17, and a sewage outlet 18. The filter media 05 has a granular structure, and the microporous filtration structure formed by the granular structure intercepts fish waste and residue in the water, achieving the purpose of separating fish waste. The filter screen 06 is disposed between the first chamber 03 and the second chamber 04 to support the filter media 05. The first one-way valve 01 is disposed in the flow channel between the water inlet 16 and the first chamber 03, and the second one-way valve 02 is disposed between the first chamber 03 and the sewage outlet 18. In the flow channel between 8, the first one-way valve 01 and the second one-way valve 02 are connected to the first chamber 03. The first one-way valve 01 is configured to allow water to flow from the inlet 16 to the first chamber 03, and the second one-way valve 02 is configured to allow water to flow from the first chamber 03 to the drain outlet 18. The first water pump 07 is connected to the outlet 17. The motor 09 is used to drive the stirring blade 10, which is located inside the first chamber 03. The fish waste separation device 100 has a first state and a second state. When the fish waste separation device 100 is in the first state, the first water pump 07 draws water from the inlet 16 to the outlet 17. When the fish waste separation device 100 is in the second state, the second water pump 08 pumps water from the outlet 17 to the drain outlet 18. Explanatoryly, in the first... In the first state, the first water pump 07 draws water, which flows from the inlet 16 to the outlet 17. The first chamber 03 is under negative pressure. The first one-way valve 01 is open and the second one-way valve 02 is closed. Water enters the fish waste separator 100 from the inlet 16 to filter the water and intercept fish waste. In the second state, the second water pump 08 pumps water, which flows from the outlet 17 to the drain 18. The first chamber 03 is under positive pressure. The first one-way valve 01 is closed and the second one-way valve 02 is open. Water enters the first chamber 03 from the outlet 17. The water flows upward to the filter media 05, causing the filter media 05 particles to expand under the upward force of the water flow. The gaps between the particles increase. The stirring blades 10 rotate... The accelerated flow of water causes the granular structure of filter media 05 to suspend and move rapidly, forming a fluid-like state. During the flow, the granular structure collides, removing impurities attached to the surface of the granular structure and impurities in the pores of filter screen 06. The detached impurities are discharged with the water flow. Furthermore, the rotation of the stirring blades 10 and the friction of the filter media break large fish waste into smaller particles, which are more easily carried away by the water flow. Therefore, the amount of water discharged and the intensity of the water flow can be greatly reduced. Through the microporous structure formed between the particles of filter media 05, the problems of large and fixed pore size and easy clogging of filter screens in the existing technology are solved. After the filter media 05 is broken up, the pore size becomes larger, and impurities and fish waste between the filter media are more easily discharged, thereby restoring the filtration and interception efficiency of filter media 05.

[0028] Among them, the first check valve 01 and the second check valve 02 can be any existing or future check valve. For example, the check valve can be a duckbill valve, spring check valve, torsion spring check valve, gravity check valve, or magnetic check valve, etc. For example, the first check valve 01 and the second check valve 02 are duckbill valves. Duckbill valves have no moving parts or mechanical parts, so they have a simple structure, relatively low cost, low opening pressure, and low head loss. When water passes through, the duckbill outlet will gradually open, allowing the fluid to flow out at a high flow rate. When the fluid flows in the opposite direction or the pressure decreases, the duckbill outlet will automatically close under its own elasticity and external pressure, effectively preventing backflow. Therefore, using a duckbill valve can miniaturize the fish waste separation device 100 and reduce production costs.

[0029] When water flows through the filter media 05, the water flow speed is relatively fast under the action of the stirring blades, and the filter media 05 is lifted by the water flow. After the water flows through the filter media 05 and enters the first chamber 03, the flow area increases and the water flow speed slows down. The particle structure of the filter media 05 rises a certain distance under the action of inertia and water flow, and then falls back due to its own weight, so it will not be discharged with the water flow. When the water flow stops, under the action of gravity, the filter media 05 settles and is supported by the filter screen 06 to form a microporous structure, thereby restoring the filtration and interception function of the filter media 05, restoring the filtration and interception efficiency, and ensuring the continuous effectiveness of the filter media. In practical applications, the filter media 05 can be stainless steel particles, titanium particles, quartz sand particles, or AFM filter media (a filter media that replaces quartz sand). It is understood that all kinds of materials with granular structures are within the scope of protection claimed in this application.

[0030] The particle size range of the filter media 05 can be between 0.1-3 mm, for example, 0.1 mm, 0.3 mm, 0.5 mm, 0.8 mm, 1 mm or 3 mm; this is only an example and is not a limitation of this application.

[0031] Furthermore, the thickness of filter media 05 can be between 5 and 200 mm, for example, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 40 mm, 50 mm, 60 mm, 80 mm, 100 mm, 140 mm, 170 mm, or 200 mm; this is merely an example and not a limitation of this application. It is well known that the thickness per unit area of ​​filter media 05 is inversely proportional to the flow rate and discharge flow intensity, and directly proportional to the interception efficiency and dirt holding capacity; therefore, in practical applications, the appropriate thickness of filter media 05 can be selected according to the required interception and discharge effects.

[0032] The filter screen 06 can be a mesh-like, porous plate structure used to support the granular filter media 05. The pore size of the filter screen 06 is smaller than the particle size of the filter media 05 to prevent the filter media 05 from entering the second chamber 04 through the filter screen 06, causing the filter media 05 to be lost and causing blockage and damage to the downstream pipelines and equipment. In the first state, water containing fish feces or other impurities (such as uneaten food, suspended particles, colloidal fish feces, bacterial clumps, flocs, animal and plant remains, etc.) enters the first chamber 03. When passing through the filter media 05, the fish feces are intercepted, and the clean water enters the second chamber 04 and is discharged. In the second state, the clean water flows from the second chamber 04 to the filter screen 06 and the filter media 05. Under the action of the water flow, the fish feces intercepted in the first state pass through the first chamber 03 with the water flow and are discharged, thereby restoring the filtration interception efficiency of the filter media 05.

[0033] As is well known, in order to ensure that the filter media 05 is not lost, the water flow rate and intensity in the second state are matched with the mass of the filter media 05 particle structure. When the mass of fish feces is equal to or greater than the mass of the filter media 05 particle structure, or when the filter media 05 is clumped due to the accumulation of fish feces due to the lack of cleaning for a long time, or due to microbial activity, etc., these fish feces or aggregates will not be able to be carried out by the water flow, causing the filter media 05 to lose its filtration and interception efficiency.

[0034] To solve the above problems, the motor 09 drives the stirring blades 10 to break up the aggregates and large fish waste by stirring, breaking them down into small particles. The stirring increases the gaps between the moving filter media 05 particles, allowing the discharged water to pass through the filter media 05 more smoothly. This greatly reduces the amount of water discharged and the intensity of the water flow, solves the problems of filter media 05 caking and the inability to discharge clumps of fish waste, restores the filtration efficiency of the filter media 05, and washes away impurities in the pores of the filter screen 06 through the rapid movement of the filter media 05.

[0035] The stirring blades 10 are disposed within the first chamber 03. The stirring blades 10 can be any existing or future type of agitator, such as paddle, turbine, anchor, spiral, axial flow, propeller, ribbon, frame, or gantry agitators. It is understood that the size and type of agitator can be selected and adjusted according to parameters such as the particle size, flow area, and thickness of the filter media 05. During operation, the stirring blades 10 can generate fluid motions such as rotating flow, axial flow, turbulence, shear flow, circulating flow, or vortex, thereby causing the particles of the filter media 05 to agglomerate. As the fluid moves, friction and collision occur. During operation, the stirring blades 10 can break up the agglomerated aggregates and large fish feces, thus breaking the fish feces in the filter media 05 into small fish feces particles. The motor 09 is used to drive the stirring blades 10 to move, for example, to drive the stirring blades 10 to rotate, move, reciprocate or other movements, so that the stirring blades 10 can break up the fish feces in the first chamber 03 into small fish feces particles. By reducing the mass of the fish feces, it can be quickly discharged with the water flow, and the rapid movement of the filter media 05 can flush away impurities in the holes of the filter screen 06 to prevent the filter screen from clogging.

[0036] Explanatory, for example, the axial flow stirring blades 10 cause the water flow to move along the direction of the stirring shaft, forming the filter media 05 into an axially upward fluidized state. Since the cross-sectional area of ​​the first chamber 03 is larger than the cross-sectional area of ​​the top outlet of the first chamber 03, the water flow velocity increases from slow to fast. Since small fish waste is lighter, it is easier to approach the drain outlet 18, and the fish waste can be discharged from the drain outlet 18 more smoothly and quickly. After the filter media 05 rises to a certain height, due to its own weight, the water flow is not enough to resist the gravity of the filter media 05 and settles and moves to the surroundings. After being blocked by the chamber wall, it moves downward to form a rotating circulating flow.

[0037] For example, the vertical convection of water caused by the stirring blades 10 causes the water at the bottom of the first chamber 03 to rise to the top, and the water at the top to sink to the bottom. This causes the filter media 05 to rotate and convect with the water flow, making it easier to remove fish waste from the filter media 05 and carry it to the upper part of the first chamber 03 near the outlet. Wastewater containing a large amount of fish waste is more easily replaced by clean water, thereby speeding up the sewage discharge, reducing the amount of water and time for sewage discharge, and making sewage discharge more thorough.

[0038] For example, the forward and reverse rotation of the stirring blades 10 can cause a stronger collision between the stirring blades 10 and the water flow and filter media 05, generating stronger turbulence and shear flow, as well as a greater degree of collision and friction between the stirring blades 10 and the filter media 05. This results in a more thorough scrubbing of the filter media 05 and the breaking up of fish waste. For instance, when the stirring blades 10 rotate forward, the water flow is a circulating, rotating flow from bottom to top along the axial direction. When the stirring blades 10 rotate in reverse, due to the inertia of the water flow, the collision between the stirring blades 10 and the filter media 05 and the fish waste... The friction is more intense, and the water flow becomes a circulating and rotating flow from top to bottom along the axial direction. Therefore, the forward and reverse rotation of the stirring blades 10 causes the filter media 05 to move and collide at multiple angles and directions, which is more conducive to the removal of impurities adhering to the surface of the filter media 05 particles. The collision and friction between the filter media 05 and the fish feces crushes and grinds the fish feces, dispersing and breaking them into small particles that are more quickly carried away and discharged by the water flow. The rapid movement of the filter media 05 also washes away impurities in the holes of the filter screen 06 to prevent the filter screen from clogging.

[0039] In an exemplary embodiment of this application, there may be one or more stirring blades 10. The stirring blades 10 are disposed above the filter media, or one or more of the stirring blades 10 are disposed inside the filter media 05, or some of the stirring blades 10 are disposed inside the filter media 05. This is to bring the stirring blades 10 close to the filter screen 06, which can be adapted to a thicker filter media 05, so that the filter media 05 can flow with the water flow during the stirring process, preventing some filter media 05 from failing to enter the fluidized state, thus affecting the stripping and removal of fish feces and impurities in the filter media 05.

[0040] Furthermore, the fish waste separation device 100 also has a third state, in which water stops flowing into the fish waste separation device 100, that is, the first water pump 07 is turned off, so that the water in the first chamber 03 is in a static state. The water and filter media 05 in the first chamber 03 are stirred by the stirring blades 10 and are in a self-circulating state. In the self-circulating state, since there is no discharge water flow to dilute the sewage, the water in the first chamber 03 has a higher pollution content. When the fish waste separation device 100 enters the second state, the discharge water flow can replace the sewage with a high pollution content, increasing the sewage discharge efficiency and sewage discharge concentration and reducing the sewage discharge volume.

[0041] In the above embodiments, the motor 09 can be another type of motor that is currently available or may appear in the future. For example, the motor can be a DC motor, AC motor, servo motor, torque motor, linear motor, stepper motor or geared motor, etc. The type of motor used can be selected according to the actual situation and is not limited here. The motor 10 is connected to the stirring blade 10, thereby driving the stirring blade 10 to move. In addition, the motor 10 can also be set in the first chamber 03, and the motor 10 can be fixed by the motor bracket (not shown in the figure) in the first chamber 03.

[0042] Further, see Figure 2 , Figure 3 The fish waste separation device 100 may include a scraper 20, which is disposed in the second chamber 04 and connected to the motor 09. Explanation: When the water is eutrophic, microorganisms will adhere to the filter screen, or impurities such as algae, microbial clusters, colloidal fish waste, and flocs will be intercepted by the bottom surface of the filter screen during sewage discharge. Without the scraping of the filter media, the pores of the filter screen may also be blocked by microorganisms, affecting the flow rate of filtered water and the flow rate of discharged water. Therefore, by setting the scraper 20 connected to the motor 09, when the fish waste separation device 100 is in the second state, the motor 09 drives the stirring blades 10 and also drives the scraper 20 to rotate. The rotation of the scraper 20 drives the water flow under the filter screen to flush the filter screen surface to prevent the aggregation and growth of microorganisms and to remove the impurities attached to the bottom surface of the filter screen, effectively preventing the filter screen 06 from being blocked and avoiding the trouble of disassembly and cleaning.

[0043] Furthermore, the scraper 20 includes a soft structure to adhere to and scrape the filter screen 06. To more effectively remove impurities adhering to the bottom surface of the filter screen 06 and prevent clogging of the filter screen 06's pores, which would affect the filtered water flow and discharge water flow, the scraper 20 includes a soft structure. This soft structure can be specifically strip-shaped (e.g., silicone strip), brush-shaped (e.g., brush), sponge-shaped (e.g., sponge), or filament-shaped (e.g., scouring pad), etc.; preferably, it is a silicone strip. The silicone strip contacts the bottom surface of the filter screen 06 and, driven by the motor 09, scrapes away impurities from the bottom surface of the filter screen, thereby keeping the filter screen 06 clean for a long time, preventing various impurities from clogging the pores of the filter screen 06, ensuring the water flow of the filter screen 06, thus making the fish waste separation device stable and efficient for a long time, and greatly reducing maintenance costs.

[0044] Furthermore, the second chamber 04 also includes a second magnet 21, which is used to attract the filter material or other iron impurities passing through the filter screen 06, preventing the filter material or iron impurities from entering the first water pump and the second water pump, causing the first water pump 07 and the second water pump 08 to malfunction or be damaged.

[0045] In one exemplary embodiment of this application, see [reference needed]. Figure 2 , Figure 3 The fish waste separation device 100 includes a collection tank 11 and a water level sensor. A drain outlet 18 is connected to the collection tank 11, which stores the discharged wastewater. The water level sensor monitors the water level in the collection tank to prevent wastewater overflow. In the absence of a sewer system, automatically discharged wastewater needs to be temporarily stored in the collection tank 11 to promptly remove fish waste from the filter media and prevent the decomposition of fish waste into harmful substances. In unattended operation, the water level sensor detects the water level. When the wastewater in the collection tank reaches the set level, the sensor detects that the tank is full and shuts off the second state to prevent wastewater from overflowing the collection tank.

[0046] In one exemplary embodiment of this application, see [reference needed]. Figure 2 , Figure 3 A float assembly is installed inside the collection bucket 11, and the water level sensor is a magnetic switch 13. The float assembly includes a first magnet 14 and a float 15. The first magnet 14 is used to trigger the magnetic switch 13 to turn on or off, and the float 15 is used to float up and down according to the water level to drive the first magnet 14 to move up and down, so as to move closer to or away from the magnetic switch 13. Specifically, a rotation fulcrum 16 is provided between the first magnet 14 and the float 15, so that when the water is full, the float 15 rises and drives the first magnet 14 down to move away from the magnetic switch 13. The first magnet 14, the float 15, and the magnetic switch 13 are configured such that when the water level has not reached the full position, the float 15, under the action of gravity... When the first magnet 14 is brought close to the magnetic control switch 13, the magnetic control switch 13 is turned on, allowing discharge. When the water level reaches the full position, the float 15 rises under the buoyancy of the water, causing the first magnet 14 to move away from the magnetic control switch 13, and the magnetic control switch is turned off. In addition, when the collection bucket 11 is removed, the first magnet 14 moves away from the magnetic control switch 13, and the magnetic control switch is turned off. Therefore, the magnetic control switch is in the off state when the water is full and when there is no collection bucket, in order to close the second state and prevent sewage from overflowing from the collection bucket or causing pollution when there is no collection bucket. For example, when the user needs to empty the sewage in the collection bucket, after removing the collection bucket, the first magnet moves away from the magnetic control switch, and the magnetic control switch is turned off.

[0047] The fish waste separation device 100 may include a control unit, which is electrically connected to a first water pump 07, a second water pump 08, and a motor 09, respectively. The control unit is used to control the first water pump 07 to turn on and the second water pump 08 and motor 09 to turn off in response to a first state; and to control the first water pump 07 to turn off and the second water pump 08 and motor 09 to turn on in response to a second state. For example, in the second state, the control unit controls the first water pump 07 to turn off and the second water pump 08 to turn on, and controls the motor 09 to drive the stirring blades 10 to move. The second state can also be divided into several time periods, and the driving speed of the motor 09 in each time period can be controlled to adjust the movement speed of the stirring blades 10. The rotation direction of the motor 09 in each time period can also be controlled, using forward and reverse rotation to enhance the force of collision friction. Turbulence intensity; In the third state, the control unit shuts off the first water pump 07 and the second water pump 08, and can control the motor 09 to run at full speed to maximize the stirring force, or control the motor 09 to run at full speed and alternate between forward and reverse rotation to maximize the stirring force, thereby increasing the degree of fish waste breaking and deep cleaning of the filter media 05 and filter screen 06; In addition, during the sewage discharge process, the motor 09 can be controlled to work intermittently and / or run at low speed to prevent the water flow speed from being too fast and lifting the filter media 05 to the vicinity of the outlet of the first chamber 03 and being carried away by the water flow; It can be understood that by controlling the first water pump 07, the second water pump 08 and the motor 09 to complete multiple working states by the control unit, more flexible discharge control can be achieved, resulting in a more optimized self-cleaning effect.

[0048] According to another aspect of this application, see [link to relevant documentation]. Figure 5 This invention provides an aquarium filtration system, including biological filter media and any of the fish waste separation devices 100 described above. For example, in the first state, a first water pump draws water, the first chamber is under negative pressure, a first one-way valve is open, and a second one-way valve is closed. Water enters the fish waste separation device 100 through the inlet 16, where it is filtered to intercept fish waste. The water passing through the filter media flows into the biological filter media from the outlet 17. The biological filter media, by cultivating beneficial microorganisms such as nitrifying bacteria, converts toxic ammonia nitrogen (NH3 / NH4⁺) in the water into non-toxic nitrate (NO3⁻). In the second state, the first... Two water pumps draw clean water from the outlet and pump it to the fish waste separation device 100. The motor is turned on to drive the stirring blades to stir the filter media and fish waste. The first chamber is under positive pressure, the first one-way valve is closed and the second one-way valve is opened, and the discharged sewage is discharged from the drain outlet, thereby restoring the filtration efficiency. The aquarium filtration system uses the fish waste separation device in conjunction with the biological filter media. First, the fish waste is filtered and separated, and then the dissolved pollutants are treated by the biological filter media, thereby maintaining long-term water quality stability and ensuring the health of aquatic organisms. The exemplary embodiment of the fish waste separation device has been described in detail above, and will not be repeated here.

[0049] According to another aspect of this application, see [link to relevant documentation]. Figure 6 An aquarium is provided, which may include a water storage container and any of the fish waste separation devices 100 described above. The fish waste separation device 100 is disposed inside the water storage container. For example, in the first state, a first water pump draws water, the first chamber is under negative pressure, the first one-way valve is open and the second one-way valve is closed, and water enters the fish waste separation device 100 from the water storage container through the inlet 16 to filter the water in the water storage container to intercept fish waste in the water. In the second state, a second water pump 08 draws clean water from the water storage container and pumps it to the fish waste separation device through the outlet 17, and the motor drives the stirring blades to stir the filter media and fish waste. The first chamber is under positive pressure, the first one-way valve is closed and the second one-way valve is open, and the discharged sewage is discharged from the drain outlet, thereby restoring the filtration and interception efficiency. The exemplary embodiments of the fish waste separation device 100 have been described in detail above, and will not be repeated here.

[0050] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front", "back", "up", "down", "left", "right", "horizontal", "vertical", "horizontal", "top", and "bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings and is only used for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0051] For ease of description, relative terms such as "above," "over," "on the upper surface of," and "above" are used here to describe the regional positional relationship of one or more components or features shown in the figures to other components or features. It should be understood that relative terms include not only the orientation of the component as depicted in the figure but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0052] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0053] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0054] This application has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this application to the scope of the described embodiments. Furthermore, those skilled in the art will understand that this application is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this application, all of which fall within the scope of protection claimed in this application. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A fish waste separation device, comprising: The water inlet, outlet, and drain outlet are characterized by further comprising: a first one-way valve, a second one-way valve, a first chamber, a second chamber, filter media, a filter screen, a first water pump, a second water pump, a motor, and stirring blades; wherein, the filter screen is disposed between the first chamber and the second chamber to support the filter media; the first one-way valve is disposed in a flow channel between the water inlet and the first chamber and is configured to allow water to flow from the water inlet to the first chamber; the second one-way valve is disposed in a flow channel between the first chamber and the drain outlet and is configured to allow water to flow from the first chamber to the drain outlet; the first water pump and the second water pump are disposed in a flow channel between the second chamber and the outlet, the first water pump causing water to flow from the water inlet to the outlet, and the second water pump causing water to flow from the outlet to the drain outlet; the stirring blades are disposed in the first chamber and connected to the motor to generate water flow to drive the filter media to move.

2. The fish waste separation device as described in claim 1, characterized in that, Also includes: A collection bucket and a water level sensor are provided. The collection bucket is used to store discharged wastewater, and the water level sensor is used to monitor the water level in the collection bucket to prevent wastewater from overflowing.

3. The fish waste separation device as described in claim 2, characterized in that, The collection bucket is equipped with a float assembly, and the water level sensor is a magnetic switch.

4. The fish waste separation device as described in claim 3, characterized in that, The float assembly includes a first magnet and a float, wherein a pivot point is provided between the first magnet and the float.

5. The fish waste separation device as described in claim 1, characterized in that, The second chamber also includes a second magnet for attracting the filter media passing through the filter screen, preventing the filter media from entering the first and second water pumps.

6. The fish waste separation device as described in claim 1, characterized in that, Also includes: A scraper is disposed in the second chamber and connected to the motor.

7. The fish waste separation device as described in claim 6, characterized in that, The scraper includes a soft structure to conform to the filter screen and scrape it.

8. The fish waste separation device as described in claim 1, characterized in that, The filter media is made of stainless steel granules.

9. An aquarium filtration system, comprising biological filter media, characterized in that, The aquarium filtration system further includes: a fish waste separation device as described in any one of claims 1-8, wherein the first water pump causes water to flow through the biochemical filter media.

10. An aquarium, comprising a water storage container, characterized in that, The aquarium further includes a fish waste separation device as described in any one of claims 1-8, wherein the fish waste separation device is disposed within the water storage container.

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