Golden pomfret fertilized egg hatching device

Abstract

The utility model discloses a fertilized egg hatching device of trachinotus ovatus, which relates to the technical field of aquaculture and comprises a double-layer cylinder body, the double-layer cylinder body comprises an outer-layer peripheral wall and an inner-layer peripheral wall, the inner-layer peripheral wall extends along the axial direction and surrounds to form a conical cylinder body, and the small-caliber end of the conical cylinder body is arranged downwards; a hatching cavity is formed between the inner side surfaces of the inner-layer peripheral wall; the top end of the outer-layer peripheral wall is higher than that of the inner-layer peripheral wall, and an overflow space is formed between the outer-layer peripheral wall and the inner-layer peripheral wall; an overflow pipeline is arranged on the peripheral wall of the outer layer; the water inlet assembly comprises a water inlet pipeline and a water inlet switch; the water inlet pipeline is communicated with a water inlet at the small-caliber end of the conical barrel; and a water inlet switch is arranged on the water inlet pipeline. According to the technical scheme, through the arrangement of the double-layer barrel and the water inlet assembly, incubation liquid in the incubation cavity can be continuously updated, the concentration of harmful substances in water can be reduced, a good water quality environment can be maintained, and favorable conditions are created for the development of fertilized eggs.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, and in particular to a device for incubating fertilized eggs of golden pomfret. Background Technology

[0002] Golden pomfret, scientifically known as *Trachinotus ovatus*, is a warm-water, mid-to-upper-level migratory fish belonging to the family Trachinotidae in the order Perciformes. Due to its tender flesh and rapid growth, it has become an important economically farmed fish along the southern coast of China, also known as "yellow wax pomfret" or "golden pomfret." In golden pomfret aquaculture, fertilized egg incubation devices are used. Traditional fertilized egg incubation devices are still-water type, typically consisting of a closed or semi-closed incubation tank. The fertilized eggs of the golden pomfret are directly placed in the tank, relying on aeration to supply dissolved oxygen without water changes. This type of device has a simple structure but lacks a continuous water flow system, leading to rapid water quality deterioration and affecting the hatching rate. Utility Model Content

[0003] In view of this, the present invention provides a hatching device for fertilized eggs of golden pomfret, which allows the water in the hatching chamber to flow continuously, avoiding the accumulation of egg membranes that are prone to decay and bacterial growth, thereby improving the hatching rate.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A device for incubating fertilized eggs of golden pomfret, comprising:

[0006] A double-layered cylindrical body includes an outer peripheral wall and an inner peripheral wall. The inner peripheral wall extends axially and surrounds the cylindrical body to form a conical shape, with the smaller diameter end of the conical shape facing downwards. An incubation chamber is formed between the inner surfaces of the inner peripheral wall. The top of the outer peripheral wall is higher than the top of the inner peripheral wall, and an overflow space is formed between the outer and inner peripheral walls to allow incubation liquid overflowing from the incubation chamber to flow into the overflow space. An overflow pipe is provided on the outer peripheral wall.

[0007] A water inlet assembly, comprising: a water inlet pipe and a water inlet switch; the water inlet pipe is connected to the water inlet at the small-diameter end of the conical cylinder, and the water inlet switch is provided on the water inlet pipe;

[0008] A fine-mesh net, which covers the water inlet at the small-diameter end of the conical cylinder;

[0009] A bubble generator is disposed inside the incubation chamber;

[0010] An oxygen pipeline, the inlet of which is connected to the water inlet pipeline.

[0011] Preferably, the conical cylinder comprises: a constant-diameter section and a variable-diameter section connected in sequence;

[0012] The small diameter end of the variable diameter cylinder section is the small diameter end of the conical cylinder body, the large diameter end of the variable diameter cylinder section is connected to the bottom end of the variable diameter cylinder section, and the top end of the variable diameter cylinder section is the top end of the outer peripheral wall.

[0013] Preferably, the top of the variable diameter cylinder section has multiple overflow notches along its circumference.

[0014] Preferably, the plurality of overflow gaps form a sawtooth structure.

[0015] Preferably, the bubble generator includes: a generator body and a gas input pipe;

[0016] The gas input pipe passes through the outer peripheral wall and the inner peripheral wall and connects to the generator body located in the incubation chamber. The generator body breaks the airflow delivered by the gas input pipe into tiny bubbles.

[0017] Preferably, the incubation chamber is provided with a conical guide plate, and the conical guide plate is located above the generator body;

[0018] The edge of the large-diameter end of the conical guide plate is connected to the inner surface of the inner peripheral wall, the small-diameter end of the conical guide plate is arranged upwards, and the middle position of the generator body is located on the axis of the conical guide plate.

[0019] Preferably, the overflow pipe is equipped with an overflow switch.

[0020] Preferably, the water inlet pipe and the small-diameter end of the conical cylinder are detachably connected.

[0021] Preferably, the water inlet pipe is equipped with a flow regulating valve.

[0022] Preferably, the double-layered cylinder is made of stainless steel;

[0023] The lowest end of the outer peripheral wall is welded to the outer surface of the inner peripheral wall.

[0024] As can be seen from the above technical solution, the present invention provides a fertilized egg incubation device for golden pomfret. When using this device, firstly, the water inlet switch on the inlet pipe is opened, and the incubation liquid enters the incubation chamber sequentially from the inlet pipe and the inlet. Then, fertilized eggs are added to the incubation liquid, allowing them to incubate in the chamber. During the incubation process, water is continuously supplied to the incubation chamber through the inlet pipe. Due to the limited capacity of the incubation chamber, the incubation liquid will first fill the entire chamber, and then excess incubation liquid will overflow from the top of the inner perimeter wall to the overflow space, finally flowing away through the overflow pipe. This continuous water flow also helps to dilute the concentration of harmful substances in the water, maintain a good water quality environment, and create favorable conditions for the development of fertilized eggs. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the fertilized egg incubation device provided in an embodiment of this utility model.

[0027] 1 is the water inlet pipe, 2 is the oxygen pipe, 3 is the fertilized egg, 4 is the fine mesh screen, 5 is the water inlet switch, 6 is the bubble generator, 7 is the conical guide plate, 8 is the overflow space, 9 is the overflow pipe, 10 is the outer peripheral wall, 11 is the inner peripheral wall, and 12 is the overflow gap. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] The fertilized egg incubation device for golden pomfret provided in this embodiment of the invention, such as... Figure 1 As shown,

[0030] The double-layered cylindrical body comprises an outer peripheral wall 10 and an inner peripheral wall 11. The inner peripheral wall 11 extends axially and surrounds the conical cylindrical body, with the smaller diameter end of the conical cylindrical body facing downwards (e.g., ...). Figure 1As shown below, an incubation chamber is formed between the inner surface of the inner peripheral wall 11 and the outer peripheral wall 10; the top of the outer peripheral wall 10 is higher than the top of the inner peripheral wall 11, and an overflow space 8 is formed between the outer peripheral wall 10 and the inner peripheral wall 11 so that the incubation liquid overflowing from the incubation chamber flows to the overflow space 8; wherein, an overflow pipe 9 is provided on the outer peripheral wall 10; Figure 1 In the overflow pipe 9, the arrow indicates the direction of water flow;

[0031] The water inlet assembly includes: a water inlet pipe 1 and a water inlet switch 5; the water inlet pipe 1 is connected to the water inlet at the small-diameter end of the conical cylinder, and the water inlet pipe 1 is equipped with the water inlet switch 5; Figure 1 In the diagram, the arrow in water inlet pipe 1 indicates the direction of water flow in water inlet pipe 1;

[0032] Mesh mesh 4, the mesh mesh 4 covers the water inlet at the small diameter end, so that the hatching liquid transported from the water inlet pipe 1 can pass through the mesh mesh 4 into the hatching chamber. It can be understood that a mesh mesh is set at the water inlet, and the mesh mesh is a 50 mesh or a 60 mesh.

[0033] Bubble generator 6 is installed inside the incubation chamber;

[0034] Oxygen pipe 2, the air inlet of oxygen pipe 2 is connected to water inlet pipe 1; Figure 1 In the diagram, the arrow in oxygen pipe 2 indicates the direction of gas flow in oxygen pipe 2.

[0035] In the above technical solution, when using the fertilized egg incubation device, firstly, the water inlet switch 5 on the water inlet pipe 1 is opened. The incubation liquid enters the incubation chamber sequentially from the water inlet pipe 1 and the water inlet. Then, fertilized eggs 3 are added to the incubation liquid, allowing the fertilized eggs 3 to incubate in the incubation chamber. During the incubation process, water is continuously supplied to the incubation chamber through the water inlet pipe 1. Due to the limited capacity of the incubation chamber, the incubation liquid will first fill the entire incubation chamber, and then the excess incubation liquid will overflow from the top of the inner peripheral wall 11 to the overflow space 8, and finally flow away through the overflow pipe 9. This continuous water flow also helps to dilute the concentration of harmful substances in the water, maintain a good water quality environment, and create favorable conditions for the development of fertilized eggs 3. At the same time, the continuous overflow of incubation liquid from the incubation chamber can carry away broken egg membranes and other tiny protein particles, preventing the accumulation of egg membranes from easily decaying and breeding bacteria, thus avoiding diseases in the larvae. Furthermore, the arrangement of the dense mesh net 4 prevents fertilized eggs 3 or golden pomfret larvae from flowing from the small-diameter inlet to the inlet pipe 1. The dense mesh net 4 is preferred, using a mesh diameter ≤0.5mm to prevent the leakage of fertilized eggs 3 (approximately 0.7-1.2mm in diameter). The 0.5mm mesh diameter physically intercepts the leakage of fertilized eggs 3 and golden pomfret larvae (1.5-2.5mm in body length), while allowing water exchange. The bubble generator 6 produces bubbles to increase the oxygen content in the incubation liquid, thereby improving the hatching rate. The oxygen pipe 2 allows pure or mixed oxygen to enter the incubation chamber, significantly increasing the dissolved oxygen saturation in the water, avoiding the risk of oxygen deficiency, shortening the incubation time, and improving the hatching rate.

[0036] In an alternative embodiment, to allow the conical cylinder to have a larger capacity, such as Figure 1 As shown, the conical cylinder includes: a constant-diameter cylinder section and a variable-diameter cylinder section connected in sequence;

[0037] The smaller diameter end of the variable diameter section is the smaller diameter end of the conical cylinder, the larger diameter end of the variable diameter section is connected to the bottom end of the variable diameter section, and the top end of the variable diameter section is the top end of the outer peripheral wall 10. In use, the incubation liquid entering from the water inlet pipe 1 rises from the smaller diameter end of the variable diameter section to the larger diameter end of the variable diameter section, then rises to the equal diameter section, and then overflows from the top of the variable diameter section into the overflow space 8.

[0038] Optimize the above technical solutions, such as Figure 1 As shown, in order to allow the incubation liquid in the incubation chamber to overflow into the overflow space 8 in an orderly manner, multiple overflow gaps 12 are provided at the top of the variable diameter cylinder section along its circumference.

[0039] Further optimization of the above technical solutions, such as Figure 1As shown, in order to allow the incubation liquid in the incubation chamber to overflow into the overflow space 8 in a more orderly manner, multiple overflow gaps 12 form a sawtooth structure, wherein any one of the overflow gaps 12 has the same shape and size. Preferably, a filter screen is provided at the top of the variable diameter cylinder section, and the mesh size of the filter screen is greater than 2.5mm to prevent the juvenile golden pomfret from flowing from the overflow gaps 12 into the overflow space 8.

[0040] In one alternative technical solution, the bubble generator 6 includes: a generator body and a gas input pipe;

[0041] A gas input pipe passes through the outer peripheral wall 10 and the inner peripheral wall 11, connecting to the generator body located inside the incubation chamber. Specifically, the generator body is positioned at 2 / 3 of the height of the incubation chamber, and it breaks the airflow delivered by the gas input pipe into tiny bubbles. Figure 1 In the diagram, the arrow on the gas input pipe indicates the direction of gas flow.

[0042] In this technical solution, microbubbles are used to increase the oxygen content in the incubation liquid and improve the hatching rate. Preferably, the outer peripheral wall 11 has a first opening and the inner peripheral wall 11 has a second opening. The gas input pipe passes through the first opening and the second opening in sequence and connects to the generator body. At the same time, the first opening and the outer peripheral wall of the gas input pipe are sealed together, and the second opening and the outer peripheral wall of the gas input pipe are also sealed together.

[0043] In one of the alternative technical solutions, such as Figure 1 As shown, the incubation chamber is equipped with a conical guide plate 7, and the conical guide plate 7 is located above the generator body;

[0044] The edge of the large-diameter end of the conical guide plate 7 is connected to the inner surface of the inner peripheral wall 11, the small-diameter end of the conical guide plate 7 is arranged facing upwards, and the middle position of the generator body is located on the axis of the conical guide plate 7.

[0045] In the above technical solution, the conical guide plate 7 can prevent bubbles from accumulating inside the incubation chamber and facilitate their discharge. In addition, the conical guide plate 7 has a flow guiding structure inside to guide the bubbles to be discharged towards the small-diameter end of the conical guide plate 7.

[0046] In an optional embodiment, the overflow pipe 9 is provided with an overflow switch to facilitate control of the opening and closing of the overflow pipe 9.

[0047] In an optional embodiment, the inlet pipe 1 and the small-diameter end of the conical cylinder are detachably connected. Specifically, the small-diameter end of the conical cylinder has a groove, and the inlet pipe 1 has a protrusion. The two are detachably connected through the cooperation of the groove and the protrusion. Of course, a threaded connection can also be used to achieve a detachable connection. This detachable connection allows the mesh net 4 to be replaced with mesh nets of different mesh sizes. Furthermore, after the juvenile golden pomfret have matured, the inlet pipe 1 and the small-diameter end of the conical cylinder can be separated, and the mesh net 4 on the small-diameter end of the conical cylinder can be removed (the inlet and mesh net 4 at the small-diameter end of the conical cylinder are detachably connected). The juvenile golden pomfret flow out from the inlet at the small-diameter end of the conical cylinder and are then removed.

[0048] In one optional technical solution, the inlet pipe 1 is equipped with a flow regulating valve. By setting the flow regulating valve, the inlet flow rate and speed can be precisely controlled, thereby controlling the overflow speed. Of course, the inlet pipe 1 is also equipped with a pressure pump to avoid insufficient pressure in the inlet pipe 1 for delivering the hatching solution. It should be noted that the inlet of the inlet pipe 1 is connected to the hatching solution source, which can be seawater.

[0049] In one alternative technical solution, in order to extend the service life of this fertilized egg incubation device, the double-layer cylinder is made of stainless steel;

[0050] The lowest end of the outer peripheral wall 10 is welded to the outer surface of the inner peripheral wall 11.

[0051] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0052] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for incubating fertilized eggs of golden pomfret, characterized in that, include: A double-layered cylindrical body, comprising an outer peripheral wall (10) and an inner peripheral wall (11), wherein the inner peripheral wall (11) extends axially and surrounds to form a conical cylindrical body, with the smaller diameter end of the conical cylindrical body facing downwards, and an incubation chamber is formed between the inner surfaces of the inner peripheral wall (11); the top of the outer peripheral wall (10) is higher than the top of the inner peripheral wall (11), and an overflow space (8) is formed between the outer peripheral wall (10) and the inner peripheral wall (11) so that the incubation liquid overflowing from the incubation chamber flows to the overflow space (8); wherein, an overflow pipe (9) is provided on the outer peripheral wall (10). The water inlet assembly includes: a water inlet pipe (1) and a water inlet switch (5); the water inlet pipe (1) is connected to the water inlet at the small diameter end of the conical cylinder, and the water inlet pipe (1) is provided with the water inlet switch (5). A fine mesh net (4) is provided to cover the water inlet at the small-diameter end of the conical cylinder. A bubble generator (6) is disposed inside the incubation chamber; Oxygen pipe (2), the air inlet of which is connected to the water inlet pipe (1).

2. The fertilized egg incubation device according to claim 1, characterized in that, The conical cylinder comprises: a constant-diameter cylinder section and a variable-diameter cylinder section connected in sequence; The small diameter end of the variable diameter cylinder section is the small diameter end of the conical cylinder body, the large diameter end of the variable diameter cylinder section is connected to the bottom end of the variable diameter cylinder section, and the top end of the variable diameter cylinder section is the top end of the outer peripheral wall (10).

3. The fertilized egg incubation device according to claim 2, characterized in that, The top of the variable diameter cylinder section has multiple overflow notches (12) along its circumference.

4. The fertilized egg incubation device according to claim 3, characterized in that, The multiple overflow gaps (12) form a sawtooth structure.

5. The fertilized egg incubation device according to any one of claims 1-4, characterized in that, The bubble generator (6) includes: a generator body and a gas input pipe; The gas input pipe passes through the outer peripheral wall (10) and the inner peripheral wall (11) and connects to the generator body located in the incubation chamber. The generator body breaks the airflow delivered by the gas input pipe into tiny bubbles.

6. The fertilized egg incubation device according to claim 5, characterized in that, The incubation chamber is provided with a conical guide plate (7), and the conical guide plate (7) is located above the generator body; The edge of the large-diameter end of the conical guide plate (7) is connected to the inner surface of the inner peripheral wall (11), the small-diameter end of the conical guide plate (7) is arranged upward, and the middle position of the generator body is located on the axis of the conical guide plate (7).

7. The fertilized egg incubation device according to claim 1, characterized in that, The overflow pipe (9) is equipped with an overflow switch.

8. The fertilized egg incubation device according to claim 1, characterized in that, The water inlet pipe (1) and the small-diameter end of the conical cylinder are detachably connected.

9. The fertilized egg incubation device according to claim 1, characterized in that, The water inlet pipe (1) is equipped with a flow regulating valve.

10. The fertilized egg incubation device according to claim 1, characterized in that, The double-walled cylinder is made of stainless steel. The lowest end of the outer peripheral wall (10) is welded to the outer surface of the inner peripheral wall (11).

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