A semi-automated zero water change internal circulation hatching and rearing device

Abstract

The utility model relates to fish egg hatching technical field, and disclose a kind of semi-automated zero water exchange internal circulation's hatching and breeding device, comprising: water flower growing pond;Water flower opening box, the water flower opening box is set in the right side of the water flower growing pond;Water flower net box, the water flower net box is set in the inside of the water flower opening box;Fish egg hatcher, the fish egg hatcher is fixedly installed in the inside of the water flower net box;Rotary nozzle, the rotary nozzle is set in the top of the fish egg hatcher, the quantity of the rotary nozzle is three;Water level limiting reverse water device, the water level limiting reverse water device is set in the left side of the water flower opening box, and the bottom of the water level limiting reverse water device is fixedly installed with microvibration machine.The utility model promotes water flower seedling rate to improve by combination system, as hatching seedling rate is limited by fertilized egg and cannot be determined, under normal circumstances, a set of combination system can be more than traditional breeding water surface to grow seedling.

Description

Technical Field

[0001] This utility model relates to the field of fish egg hatching technology, specifically a semi-automatic zero-water-change internal circulation hatching and seedling raising device. Background Technology

[0002] Fish egg hatching equipment is a specialized device designed with micro-flow water, mainly used for hatching fish eggs in aquaculture. It is commonly made of PP plastic and has a funnel-shaped structure that is larger at the top and smaller at the bottom. The water inlet at the bottom disperses the fish eggs that are stuck together and diffuses highly oxygenated water, while the water outlet at the top is equipped with a filter screen to prevent the fish eggs from being lost. The equipment has high requirements for water quality and needs to control dissolved oxygen, ammonia content and temperature. It is suitable for factory farming and chemical production lines.

[0003] In aquaculture, seedlings are of paramount importance. Currently, freshwater and marine fish fry are primarily raised in traditional outdoor ponds. However, survival rates are unpredictable due to weather and various environmental factors, relying heavily on luck. Water quality control, such as fertilization, algae cultivation, and the introduction of live feed, requires specialized skills and experience; beginners often suffer significant losses. Many coastal farmers have attempted large-scale stocking and factory-style seedling production, but water quality cannot be guaranteed. Nearshore waters are susceptible to pathogens and viruses from aquaculture discharges, making the fry very vulnerable and easily infected. This necessitates the use of numerous antibacterial and antiviral drugs. Furthermore, the differences in water quality between local and imported water cause repeated stress on the fry, resulting in unhealthy fry that negatively impact the farming cycle and yield.

[0004] This zero-water-change internal circulation hatching and seedling raising system was developed to solve the problem of unstable water quality. It addresses water pollution at its source and also solves the problem of industrial production being affected by the external environment, making seedling raising simple and efficient. Because the water quality is stable, the seedlings do not experience stress, so there is no need to use antibiotics or other animal health products. The seedlings are robust and well-fed within the system all day. Therefore, compared with seedlings raised in traditional outdoor ponds, these seedlings have a higher survival rate in the new water quality environment for fish farmers. This is because seedlings raised in outdoor ponds still retain some wildness, while our seedlings have been domesticated to be docile and better adapted to the new environment. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technologies mentioned above have the problem of not being able to guarantee the quality of the water source, and that seedlings are very vulnerable to infection due to the impact of bacteria and viruses discharged from aquaculture in the nearshore area, a lot of antibacterial and antiviral drugs are used.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A semi-automated, zero-water-change, internal circulation incubation and seedling raising device includes: A water feature cultivation pond; A splash opening box is provided on the right side of the splash cultivation tank; A water spray net cage, wherein the water spray net cage is disposed inside the water spray opening box; Fish egg incubator, which is fixedly installed inside the water splash net cage; A rotating nozzle is disposed on the top of the fish egg incubator, and the number of the rotating nozzles is three. A water level limiting and backflow prevention device is provided, which is located on the left side of the water splash opening box, and a micro-vibrator is fixedly installed at the bottom of the water level limiting and backflow prevention device.

[0008] As a further embodiment of this utility model: the water level limiting backflow device includes a water level limiting backflow pipe, and a backflow sleeve is sleeved on the bottom of the right end of the water level limiting backflow pipe, with a one-centimeter gap between the top of the backflow sleeve and the bottom of the water level limiting backflow pipe.

[0009] As a further improvement of this utility model: a return water collection tank is provided on the left side of the water splash opening box, and a water level controller is fixedly installed inside the return water collection tank.

[0010] As a further improvement of this utility model: a biological filter box is provided on the left side of the water spore cultivation tank, and a filter bag is provided on the right back side of the biological filter box, at the position of the water inlet.

[0011] As a further embodiment of this utility model: an adjustable water outlet device is fixedly installed inside the biological filter box. The adjustable water outlet device includes a mounting frame. A hollow telescopic frame is fixedly installed on the top of the mounting frame. A motor is fixedly installed on the left side of the top of the hollow telescopic frame. A threaded rod is fixedly installed at one end of the output shaft of the motor. A water pump is rotatably connected to the threaded rod through the mounting frame. A threaded ring is sleeved on the surface of the threaded rod. The bottom of the threaded ring is fixedly installed to the top of the mounting frame. An oxygenation device is provided on the right side of the bottom of the threaded rod through a connecting frame.

[0012] As a further improvement of this utility model: the output end of the water pump is connected to a water pipe, and the other end of the water pipe is connected to the three rotating nozzles.

[0013] As a further embodiment of this utility model: the interior of the water spore cultivation tank is provided with a first drainage device, which drains the water in the water spore cultivation tank into the biological filter box; the return water collection tank is provided with a second drainage device, which drains the water in the return water collection tank into the water spore cultivation tank.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model improves the seedling emergence rate of water fry through the combination system. As for the hatching and seedling emergence rate, it cannot be determined due to the limitation of fertilized eggs. Under normal circumstances, one combination system can produce more seedlings than the traditional seedling raising water surface.

[0015] 2. This utility model, through its combined system, gives it a significant advantage in seawater seedling cultivation. Grouper faces two major challenges: firstly, fin growth and secondly, fin folding. This system, with its zero-water-change mechanism, ensures stable water quality and avoids stress, resulting in very few deaths or deformities due to fin folding failure. Furthermore, each seedling undergoes a period of death and blackening of the body. Due to the stable water quality, this technology minimizes seedling loss during this period, greatly improving the spawning rate. This technology overcomes the bottleneck that current factory-style seedling cultivation techniques cannot overcome, and also brings new opportunities to pond hatching and seedling cultivation that relies on luck. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of a semi-automatic, zero-water-change, internally circulating incubation and seedling raising device; Figure 2 for Figure 1 The diagram shows the external three-dimensional structure. Figure 3 for Figure 1 A schematic diagram of the overall structural cross-section shown; Figure 4 for Figure 1 The diagram shown is a schematic of the structure of the water outlet regulating device. Figure 5 for Figure 4 The diagram shows the overall cross-sectional structure. In the diagram: 1. Fly rearing tank; 2. Fly opening box; 3. Fly net cage; 4. Fish egg incubator; 5. Rotating nozzle; 6. Water level limiting backflow device; 61. Water level limiting backflow pipe; 62. Backflow sleeve; 7. Return water collection tank; 8. Biological filter box; 9. Filter bag; 10. Water outlet regulating device; 101. Mounting frame; 102. Hollow telescopic frame; 103. Motor; 104. Threaded rod; 105. Threaded ring; 106. Water pump; 107. Aeration device; 11. Water pipe; 12. Micro-vibrator. Detailed Implementation

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

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0020] Example 1: Please see Figure 1 - Figure 4 This is the first embodiment of the present utility model. This embodiment provides a semi-automated, zero-water-change, internal circulation incubation and seedling raising device, including: Water Splashing Pond 1; Water splash opening box 2 is located on the right side of water splash cultivation tank 1; Water splash cage 3, which is set inside the water splash opening cage 2; Fish egg incubator 4 is fixedly installed inside the water splash net cage 3; Rotating nozzle 5, the rotating nozzle 5 is set on the top of the fish egg incubator 4, and there are three rotating nozzles 5; The water level limiting and backflow prevention device 6 is located on the left side of the water splash opening box 2, and a micro-vibrator 12 is fixedly installed at the bottom of the water level limiting and backflow prevention device 6.

[0021] For example, the water level limiting backflow device 6 includes a water level limiting backflow pipe 61, and a backflow sleeve 62 is sleeved on the bottom of the right end of the water level limiting backflow pipe 61. The top of the backflow sleeve 62 and the bottom of the water level limiting backflow pipe 61 are spaced one centimeter apart.

[0022] Furthermore, the biological filter box 8 is divided into a pretreatment zone, a biological filter media zone, and a clear water zone along the water flow direction. The pretreatment zone is connected to the inlet. The biological filter media zone is filled with volcanic rock and biological balls. The clear water zone is equipped with an outlet regulating device 10.

[0023] Filter bag 9: Located at the inlet of biological filter box 8, it is made of 200-mesh nylon filter cloth and has a cylindrical structure. The bag opening is fixed to the end of the inlet pipe with a stainless steel clamp, and a 500g counterweight is suspended at the bottom of the bag to ensure that the filter bag is unfolded.

[0024] For example, a return water collection tank 7 is provided on the left side of the water splash opening tank 2, and a water level controller is fixedly installed inside the return water collection tank 7.

[0025] Furthermore, water pump 106 is a centrifugal water pump with a flow rate of 20m³ / h. 3 / h, head 5m, with a 60-mesh filter screen at the inlet; the oxygenation device 107 is a microporous aeration disc with a diameter of 20cm and an aeration hole diameter of 0.5mm, which is fixed to the bottom right side of the threaded rod 104 through a connecting bracket and connected to an external oxygen cylinder through a hose.

[0026] For example, a biological filter box 8 is provided on the left side of the water spore cultivation tank 1, and a filter bag 9 is provided on the right back side of the biological filter box 8 at the water inlet.

[0027] Furthermore, rotating nozzle 5: three nozzles are arranged in an equilateral triangle at a position 15cm directly above the top of the fish egg incubator 4. Each nozzle rotates 360° at a speed of 10r / min, with a nozzle orifice diameter of 1mm and a spray angle of 60 degrees, which can form a uniform annular water flow covering the incubator.

[0028] Water pipe 11: Made of food-grade PE pipe, one end is connected to the output end of water pump 106 via a quick connector, and the other end is divided into three paths via a T-connector, which are connected to three rotating nozzles respectively. The outer wall of the pipe is fixed to the device bracket by pipe clamps.

[0029] Once the fish enters the splash cage 3, the incubator's water source continuously flows into it, exchanging the water flow every two hours. Uneaten food and small fish waste are expelled from the splash cage 3 by the water flow, maintaining the purity of the water within the cage. Because this water comes from the entire system, its quality, temperature, and other physical properties are consistent. Therefore, even with feeding, harmful substances such as ammonia and nitrite will not appear in the splash cage 3. The powerful biological filter 8 ensures the stability of these parameters. The water continuously enters the splash cage 3, and the water level limiting backflow pipe prevents water from overflowing outside the splash opening box 2. Outside the limiting backflow pipe, there is a backflow sleeve with a one-centimeter gap between this sleeve and the bottom of the opening pipe. For water to flow out of the limiting pipe, the water flow must be lifted through the gap in the sleeve, thus sucking away the fish feces accumulated at the bottom of the splash opening box 2. This device ensures that the water inside and outside the cage does not accumulate dirt and grow harmful bacteria. A micro-vibrator is installed on the backflow sleeve, which prevents the 60-mesh mesh from being blocked and thus obstructing the water flow.

[0030] During use, the water circulation start-up and filtration stages... In the initial state, the seedling cultivation tank 1 injects pretreated seedling water into the seedling opening box 2, and the water level controller sets the reference water level of the return water collection tank 7.

[0031] Start the water outlet adjustment device 10 in the biological filter box 8: the motor 103 drives the threaded rod 104 to rotate, and through the cooperation of the threaded ring 105, it drives the water pump 106 to descend along the hollow telescopic frame 102 to a suitable depth in the clean water area. After the water pump starts, it draws clean water from the filter box.

[0032] Clean water is delivered to three rotating nozzles 5 through water pipe 11. The nozzles rotate and spray to form a micro-flow of water, which evenly washes the fish eggs in the fish egg incubator 4. At the same time, the oxygenation device 107 is activated to aerate the water, increasing the dissolved oxygen content to more than 5 mg / L.

[0033] Hatching and fry rearing stage: Fish eggs are subjected to a gentle water flow within the incubator to prevent them from sticking together and to ensure they receive sufficient dissolved oxygen, gradually hatching into fry. During the hatching process, unfertilized eggs and uneaten food sink to the bottom of the fry net cage 3 with the water flow.

[0034] As water is injected from the nozzle, the water level in the water spray box 2 gradually rises. When the water level reaches the height of the backflow pipe of the limit water level backflow device 6, the water flows into the return water collection box 7 through the gap between the backflow pipe and the backflow sleeve. The micro-vibrator works synchronously to prevent impurities from accumulating in the gap.

[0035] The water level controller in the return water collection tank 7 monitors the water level in real time. When the water level reaches the upper limit, the second drainage device is activated to discharge the filtered water into the fry rearing pond 1 for the fry to start feeding and grow. When the water level drops to the lower limit, the drainage device stops, thus achieving automatic water level regulation.

[0036] Water purification and closed-loop circulation: After the fish fry feed, the water in the fry rearing pond 1 produces pollutants such as uneaten food and feces. The first drainage equipment is started regularly every 2 hours for 10 minutes each time to discharge the polluted water into the biological filter box 8.

[0037] The wastewater first passes through filter bag 9 to remove solid impurities with a particle size greater than 80μm; then it enters the biological filter media area, where nitrifying bacteria on the surface of volcanic rock and biological balls decompose harmful substances such as ammonia nitrogen and nitrite in the water. The purified water flows into the clear water area to await reuse.

[0038] Zero water exchange and stress control principle: Throughout the process, the water circulates only within the device, without introducing external water sources. Water self-purification is achieved through biological filtration and aeration, avoiding external pollution and water quality fluctuations. The micro-vibration and uniform water flow design of the water level limiting and reversing device, combined with a stable dissolved oxygen environment, reduces stress responses in fish fry during fin growth, fin folding, and blackening stages, lowering deformity and mortality rates, ultimately achieving high-efficiency fry rearing.

[0039] Example 2: Please see Figure 5 This is the second embodiment of the present utility model.

[0040] For example, the biological filter box 8 described above is internally fixedly equipped with a water outlet regulating device 10. The water outlet regulating device 10 includes a mounting frame 101. A hollow telescopic frame 102 is fixedly installed on the top of the mounting frame 101. A motor 103 is fixedly installed on the left side of the top of the hollow telescopic frame 102. A threaded rod 104 is fixedly installed at one end of the output shaft of the motor 103. A water pump 106 is rotatably connected to the threaded rod 104 through the mounting frame 101. A threaded ring 105 is sleeved on the surface of the threaded rod 104. The bottom of the threaded ring 105 is fixedly installed to the top of the mounting frame 101. An oxygenation device 107 is provided on the right side of the bottom of the threaded rod 104 through a connecting frame.

[0041] Furthermore, the basic frame consists of a 101 stainless steel rectangular mounting frame, fixed to the bottom of the clean water zone of the biological filter box 8, and a hollow telescopic frame 102 with a diameter of 8cm and a telescopic stroke of 30cm, vertically fixed to the center of the top of the mounting frame to provide lifting guidance for the water pump.

[0042] For example, the output end of the water pump 106 is connected to a water pipe 11, and the other end of the water pipe 11 is connected to three rotating nozzles 5.

[0043] Furthermore, the drive components: the motor 103 is a stepper motor with a power of 100W and a speed of 1500r / min. It is fixed to the top left side of the hollow telescopic frame 102 via a flange. One end of the threaded rod 104 is connected to the output shaft of the motor 103 via a coupling, and the other end passes through the threaded ring 105 and is rotatably connected to the top bearing seat of the water pump 106. The threaded ring 10 has an internal thread structure and is welded and fixed to the top of the mounting frame 101 at its bottom. The rotational motion of the motor 103 is converted into the lifting motion of the water pump 106 through the threaded engagement.

[0044] For example, the water spore cultivation tank 1 is equipped with a first drainage device, which drains the water in the water spore cultivation tank 1 into the biological filter box 8. The return water collection tank 7 is equipped with a second drainage device, which drains the water in the return water collection tank 7 into the water spore cultivation tank 1.

[0045] Furthermore, the output end of the water pump 106 is connected to the water pipe 11 via a retractable flexible hose.

[0046] During use, the height of the water pump 106 can be adjusted according to the actual water level and water quality in the biological filter box 8, so as to draw the most suitable water quality and spray it onto the fish egg incubator 4.

[0047] When the height needs to be adjusted, the motor 103 can be started. The rotation of the motor 103 will drive the threaded rod 104 to rotate. Since the threaded ring 105 is in a non-rotatable state, the threaded rod 104 will be used longitudinally, thus changing the height of the water pump 106. At the same time, the hollow telescopic frame 102 will also perform longitudinal telescopic operation. Since the threaded rod 104 and the water pump 106 are rotatably connected and there is the force of the water pipe, the water pump 106 will not rotate, and the aeration device 107 will also not rotate.

[0048] In summary, this combined system offers significant advantages in seawater seedling cultivation. Grouper faces two major challenges: fin growth and fin folding. This system, with its zero-water-change mechanism, ensures stable water quality, minimizing stress and resulting in very few deaths or deformities due to fin folding failure. Furthermore, each seedling undergoes a period of death and blackening, but this technology, with its stable water quality, minimizes seedling loss during this period, significantly increasing the hatching rate. This technology overcomes the bottleneck currently insurmountable in industrialized seedling cultivation and presents new opportunities for pond-based seedling hatching that relies on luck.

[0049] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0050] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0051] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring extensive experimentation. It should be noted that the above embodiments are merely illustrative of the technical solutions of this utility model and 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 solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A semi-automatic, zero-water-change, internal circulation incubation and seedling raising device, characterized in that: include: The spawning tank (1), spawning opening box (2), spawning net box (3), fish egg incubator (4), and rotating nozzle (5) are arranged. The spawning opening box (2) is located on the right side of the spawning tank (1). The spawning net box (3) is located inside the spawning opening box (2). The fish egg incubator (4) is fixedly installed inside the spawning net box (3). The rotating nozzle (5) is located on top of the fish egg incubator (4). There are three rotating nozzles (5). The spawning tank (1) also includes: Water level limiting backflow device (6) and water outlet regulating device (10); the water level limiting backflow device (6) is located on the left side of the water splash opening box (2), a micro-vibrator (12) is fixedly installed at the bottom of the water level limiting backflow device (6), and the water outlet regulating device (10) is fixedly installed on one side of the water splash cultivation tank (1).

2. The semi-automatic zero-water-change internal circulation hatching and seedling raising device according to claim 1, characterized in that: The water level limiting backflow device (6) includes: a water level limiting backflow pipe (61) and a backflow sleeve (62); the water level limiting backflow pipe (61) is located on one side of the water splashing pool (1), and the backflow sleeve (62) is sleeved on the bottom of the right end of the water level limiting backflow pipe (61), with a gap of one centimeter between the top of the backflow sleeve (62) and the bottom of the water level limiting backflow pipe (61).

3. The semi-automatic zero-water-change internal circulation hatching and seedling raising device according to claim 1, characterized in that: A return water collection tank (7) is provided on the left side of the water splash opening box (2), and a water level controller is fixedly installed inside the return water collection tank (7).

4. The semi-automatic zero-water-change internal circulation hatching and seedling raising device according to claim 3, characterized in that: A biological filter box (8) is provided on the left side of the water spore cultivation tank (1), and a filter bag (9) is provided on the right back side of the biological filter box (8) at the water inlet.

5. The semi-automatic zero-water-change internal circulation hatching and seedling raising device according to claim 4, characterized in that: The regulating water outlet device (10) includes: a mounting frame (101), a hollow telescopic frame (102), a motor (103), a threaded rod (104), a threaded ring (105), a water pump (106), and an oxygenation device (107); the mounting frame (101) is located on the top side of the biological filter box (8), the hollow telescopic frame (102) is fixedly installed on the top of the mounting frame (101), the motor (103) is fixedly installed on the left side of the top of the hollow telescopic frame (102), the threaded rod (104) is fixedly installed on one end of the output shaft of the motor (103), the water pump (106) is rotatably connected to the threaded rod (104) and passes through the mounting frame (101), the threaded ring (105) is sleeved on the surface of the threaded rod (104), and the oxygenation device (107) is set on the right side of the bottom of the threaded rod (104) through a connecting frame.

6. The semi-automatic zero-water-change internal circulation hatching and seedling raising device according to claim 5, characterized in that: The output end of the water pump (106) is connected to a water pipe (11), and the other end of the water pipe (11) is connected to the three rotating nozzles (5).

7. The semi-automatic zero-water-change internal circulation hatching and seedling raising device according to claim 4, characterized in that: The water spore cultivation tank (1) is equipped with a first drainage device, which drains the water in the water spore cultivation tank (1) into the biological filter box (8). The return water collection tank (7) is equipped with a second drainage device, which drains the water in the return water collection tank into the water spore cultivation tank (1).

8. A semi-automatic zero-water-change internal circulation incubation and seedling raising device according to claim 5, characterized in that: The bottom of the threaded ring (105) is fixedly installed with the top of the mounting bracket (101). The interior of the biological filter box (8) is divided into a pretreatment zone, a biological filter media zone and a clear water zone along the water flow direction.

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