Shrimp larvae hatcher

Abstract

The utility model discloses a kind of shrimp fry incubators, lining plate is installed in hatching pool, hatching pool is divided into female shrimp placing cavity and shrimp fry cultivation cavity by lining plate, shrimp fry cultivation cavity is at least partially located below female shrimp placing cavity, the bottom wall of female shrimp placing cavity is equipped with multiple first separation holes, first separation hole can be passed through and prevent female shrimp through, the bottom wall of shrimp fry cultivation cavity is equipped with multiple filter holes for preventing shrimp egg and shrimp fry through;Purification pond is located below hatching pool, purification pond is equipped with sequentially communicating sedimentation chamber, biochemical chamber and clean water chamber, sedimentation chamber is communicated with shrimp fry cultivation cavity by filter hole, ammonia nitrogen removal device is provided in biochemical chamber, clean water chamber is communicated with female shrimp placing cavity and / or shrimp fry cultivation cavity, clean water chamber is further provided with constant temperature control device. Thus efficient separation of female shrimp and shrimp fry, constant temperature incubation and water quality self-cleaning can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of aquaculture technology, and in particular to a shrimp larvae incubator. Background Technology

[0002] In aquaculture, especially shrimp farming, the reproduction of female shrimp and the cultivation of shrimp larvae are crucial for ensuring successful farming. However, traditional shrimp larvae breeding relies on female shrimp carrying eggs for incubation, with both reproduction and larvae cultivation taking place in the same water area, which has many drawbacks. First, female shrimp are prone to death during incubation due to stress or water quality issues, resulting in high losses. Second, the incubation cycle is long; shrimp eggs require more than 120 days to incubate at natural water temperatures, and even at a constant temperature of 25°C, it still takes 30 days. More seriously, contact between shrimp eggs and female shrimp can easily lead to saprolegniasis, posing a high risk of disease. In addition, shrimp larvae need to be manually harvested, which is not only inefficient but also labor-intensive, making it difficult to meet the needs of large-scale farming. Due to the difficulty in precisely controlling the force and range during harvesting, small shrimp larvae are often injured or even die, seriously affecting the survival rate and farming efficiency. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a shrimp larvae incubator that can achieve efficient separation of shrimp eggs from the mother shrimp, and can also achieve constant temperature incubation and water self-purification, thereby improving the efficiency and survival rate of shrimp larvae breeding.

[0004] According to a first aspect of the present invention, a shrimp larvae incubator includes: an incubation pool, wherein an inner liner is installed inside the incubation pool, the inner liner dividing the incubation pool into a mother shrimp placement chamber and a shrimp larvae rearing chamber, the shrimp larvae rearing chamber being at least partially located below the mother shrimp placement chamber, the bottom wall of the mother shrimp placement chamber having a plurality of first separation holes, the first separation holes allowing shrimp eggs to pass through while preventing the mother shrimp from passing through, and the bottom wall of the shrimp larvae rearing chamber having a plurality of filter holes for preventing the passage of shrimp eggs and shrimp larvae; and a purification pool located below the incubation pool, wherein a sedimentation chamber, a biochemical chamber, and a clear water chamber are sequentially connected, the sedimentation chamber being connected to the shrimp larvae rearing chamber through the filter holes, the biochemical chamber having an ammonia nitrogen removal device, the clear water chamber being connected to the mother shrimp placement chamber and / or the shrimp larvae rearing chamber, and the clear water chamber also having a constant temperature control device.

[0005] The shrimp larvae incubator according to the embodiments of this utility model has at least the following beneficial effects: By employing the shrimp larvae incubator of this embodiment, the mother shrimp is placed in the larvae placement cavity on the inner liner plate. Shrimp eggs can sink through the first separation hole into the larvae rearing cavity for incubation and larvae formation. This achieves efficient separation of the mother shrimp and eggs, reducing the risk of water mold disease caused by contact between the eggs and mother shrimp. A purification tank is installed below the incubation tank. Wastewater in the larvae rearing cavity flows through filter holes into the sedimentation chamber of the purification tank below. It then passes through a biochemical chamber and is purified by an ammonia nitrogen removal device. The purified water flows into the clear water chamber, where a constant temperature control device maintains the water at 25°C. This constant-temperature clean water then flows into the mother shrimp placement cavity and larvae rearing cavity within the incubation tank. This ensures the water in the incubation tank remains clean and at a constant temperature, achieving constant-temperature incubation and water self-purification. This reduces the risk of mother shrimp death due to water quality issues during incubation, reducing mother shrimp losses, shortening the incubation cycle, and improving the efficiency and survival rate of larvae breeding.

[0006] According to some embodiments of the present invention, the hatching pool also has a filter chamber located below the shrimp larvae rearing chamber, and a filter plate is installed in the hatching pool between the filter chamber and the shrimp larvae rearing chamber, with all the filter holes opened on the filter plate, and the sedimentation chamber is connected to the filter chamber.

[0007] According to some embodiments of the present invention, the filter plate extends along the length of the hatching pool, and in the width direction of the hatching pool, the filter plate gradually extends upward from the middle to both ends, so that the bottom width of the shrimp larvae rearing chamber gradually decreases from top to bottom.

[0008] According to some embodiments of the present invention, the filter plate is arranged inclined downwards from front to back along the length of the hatching pool, the mother shrimp placement cavity is located at the front end of the hatching pool, and a shrimp seedling collection pipe connected to the shrimp seedling cultivation cavity is provided at the lower end of the rear side wall of the hatching pool; the clear water cavity, the biochemical cavity and the sedimentation cavity are arranged sequentially from front to back along the length of the purification pool.

[0009] According to some embodiments of the present invention, the periphery of the sedimentation chamber has a guide surface connected to the bottom wall and arranged inclined outward from bottom to top. The sedimentation chamber is also provided with filter cotton, which is connected to the lower end of the guide surface. The part of the sedimentation chamber located below the filter cotton is connected to the biochemical chamber.

[0010] According to some embodiments of this utility model, the ammonia nitrogen removal device is a volcanic rock packing material filled in the biochemical chamber, wherein the specific surface area of ​​the volcanic rock packing material is greater than or equal to 500 m². 2 / m 3 .

[0011] According to some embodiments of this utility model, the constant temperature control device is an air heat pump installed in the clear water chamber.

[0012] According to some embodiments of the present invention, the female shrimp placement cavity is opened in the inner liner plate, all the first separation holes are opened in the bottom wall of the inner liner plate, and at least one second separation hole is opened in the peripheral wall of the inner liner plate. The second separation hole allows shrimp eggs to pass through and prevents female shrimp from passing through.

[0013] According to some embodiments of this utility model, at least one nozzle is installed around the hatching pool; and a nano-aeration pipe is also installed on the inner peripheral wall of the shrimp larvae rearing chamber.

[0014] According to some embodiments of this utility model, the incubation pool and the purification pool are both integral welded structures, and the side wall of the incubation pool is provided with at least one observation window.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of a shrimp larvae incubator according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the interior of the shrimp larvae incubator according to an embodiment of the present invention; Figure 3 This is a top view of the incubation pool according to an embodiment of the present invention; Figure 4 This is a side sectional view of the incubation pool according to an embodiment of the present utility model; Figure 5 This is a schematic diagram of the internal structure of the purification tank in an embodiment of this utility model.

[0017] Figure label: Hatching pond 100, female shrimp placement chamber 110, shrimp larvae rearing chamber 120, inner lining plate 130, filter chamber 140, filter plate 150, nozzle 160, observation window 170; Purification tank 200, sedimentation chamber 210, guide surface 211, filter cotton 212, biochemical chamber 220, clear water chamber 230. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] Reference Figures 1 to 5This utility model provides a shrimp larvae incubator, including an incubation tank 100 and a purification tank 200. An inner liner 130 is installed inside the incubation tank 100, dividing it into a mother shrimp placement chamber 110 and a shrimp larvae rearing chamber 120. The shrimp larvae rearing chamber 120 is at least partially located below the mother shrimp placement chamber 110. The bottom wall of the mother shrimp placement chamber 110 has multiple first separation holes, which allow shrimp eggs to pass through while preventing the mother shrimp from passing through. The shrimp larvae rearing chamber 120... The bottom wall of the 0 has multiple filter holes to prevent shrimp eggs and larvae from passing through; the purification tank 200 is located below the hatching tank 100. The purification tank 200 has a sedimentation chamber 210, a biochemical chamber 220 and a clear water chamber 230 connected in sequence. The sedimentation chamber 210 is connected to the larvae rearing chamber 120 through filter holes. The biochemical chamber 220 is equipped with an ammonia nitrogen removal device. The clear water chamber 230 is connected to the mother shrimp placement chamber 110 and / or the larvae rearing chamber 120. The clear water chamber 230 is also equipped with a constant temperature control device.

[0024] By using the shrimp larvae incubator of this utility model embodiment, when the mother shrimp is placed in the shrimp larvae placement cavity on the inner liner plate 130, the shrimp eggs can sink into the shrimp larvae cultivation cavity 120 through the first separation hole to hatch and form shrimp larvae, thereby achieving efficient separation of the mother shrimp and shrimp eggs and reducing the risk of water mold disease caused by contact between shrimp eggs and mother shrimp. By setting up a purification tank 200 below the hatching tank 100, the wastewater in the shrimp larvae rearing chamber 120 can flow through the filter holes into the sedimentation chamber 210 of the purification tank 200 below. Then, it passes through the biochemical chamber 220 and is purified by an ammonia nitrogen removal device. The purified water flows into the clear water chamber 230. The water in the clear water chamber 230 is kept at a constant temperature of 25°C by a constant temperature control device. Finally, the constant temperature clean water flows into the mother shrimp placement chamber 110 and the shrimp larvae rearing chamber 120 in the hatching tank 100. This allows the water in the hatching tank 100 to remain clean and at a constant temperature, which enables constant temperature hatching and water self-purification. This reduces the risk of death of mother shrimp due to water quality problems during hatching, helps reduce the loss of mother shrimp, shortens the hatching cycle, and improves the efficiency and survival rate of shrimp larvae breeding.

[0025] It is understandable that, since the mother shrimp placement chamber 110 and the shrimp larvae rearing chamber 120 are interconnected, the clear water chamber 230 can be directly connected to the mother shrimp placement chamber 110, directly connected to the shrimp larvae rearing chamber 120, or simultaneously connected to both. Specifically, the clear water chamber 230 is connected to the mother shrimp placement chamber 110 and / or the shrimp larvae rearing chamber 120. In particular, a water pump can be installed between the clear water chamber 230 and the hatching tank 100 to quickly and efficiently transport clean water from the clear water chamber 230 to the hatching tank 100.

[0026] Reference Figures 1 to 4In some embodiments, the hatching tank 100 also has a filter chamber 140 located below the shrimp larvae rearing chamber 120. A filter plate 150 is installed in the hatching tank 100 between the filter chamber 140 and the shrimp larvae rearing chamber 120, with all filter holes formed on the filter plate 150. The sedimentation chamber 210 is connected to the filter chamber 140. This allows shrimp eggs and larvae to be trapped within the shrimp larvae rearing chamber 120, while wastewater can flow through the filter holes on the filter plate 150 into the filter chamber 140 and finally into the sedimentation chamber 210. This structure facilitates the transport of wastewater from the shrimp larvae rearing chamber 120 to the lower biological treatment tank for purification, thus promoting the self-purification of water quality in the shrimp larvae hatchery.

[0027] Reference Figures 1 to 4 The filter plate 150 extends along the length of the hatching tank 100. In the width direction of the hatching tank 100, the filter plate 150 gradually extends upward from the middle to both ends, so that the bottom width of the shrimp larvae rearing chamber 120 gradually decreases from top to bottom. This ensures that the shrimp larvae are all located at the bottom center of the shrimp larvae rearing chamber 120, which facilitates the collection of shrimp larvae and also facilitates the filtration of wastewater.

[0028] Understandably, referring to Figure 4 In some embodiments, in the width direction of the hatching pool 100, the filter plate 150 is arranged to gradually extend upward from the middle to both ends. Specifically, the filter plate 150 can be set as a V-shaped plate with the opening facing upward, or the filter plate 150 can also be set as a U-shaped plate or an arc-shaped plate with the opening facing upward. This utility model does not make specific limitations on this.

[0029] Reference Figure 3 In some embodiments, the filter plate 150 is arranged inclined downwards from front to back along the length of the hatching tank 100. The mother shrimp placement cavity 110 is located at the front end of the hatching tank 100. The lower end of the rear side wall of the hatching tank 100 is provided with a shrimp larvae collection pipe that communicates with the shrimp larvae rearing cavity 120. Thus, the shrimp eggs that sink from the mother shrimp placement cavity 110 into the shrimp larvae rearing cavity 120 can be dispersed along the filter plate 150 and flow downwards, which can prevent the shrimp eggs from accumulating below the mother shrimp rearing cavity. After the shrimp eggs hatch into shrimp larvae, they can flow downwards along the filter plate 150 to the rear end of the hatching tank 100. Opening the shrimp larvae collection pipe can facilitate the collection and removal of the shrimp larvae.

[0030] Reference Figures 1 to 5 In some embodiments, the clear water chamber 230, the biochemical chamber 220 and the sedimentation chamber 210 are arranged sequentially from front to back along the length of the purification tank 200, thereby enabling the sedimentation chamber 210 to be located at the rear end of the purification tank 200 and below the shrimp larvae rearing chamber 120, which facilitates the direct downward flow of sewage into the sedimentation chamber 210 and helps to improve the efficiency of water self-purification.

[0031] Reference Figure 2 and Figure 5 In some embodiments, the periphery of the sedimentation chamber 210 has guide surfaces 211 arranged inclined outward from bottom to top. A filter cotton 212 is also provided inside the sedimentation chamber 210, connected to the lower end of the guide surfaces 211. The portion of the sedimentation chamber 210 below the filter cotton 212 is connected to the biochemical chamber 220. This facilitates the guidance and filtration of wastewater, aids in the collection of impurities in the wastewater, and facilitates the transport of the filtered wastewater to the biochemical chamber 220 for ammonia nitrogen removal.

[0032] In some embodiments, the ammonia nitrogen removal device is a volcanic rock packing material filled in the biochemical chamber 220, and the specific surface area of ​​the volcanic rock packing material is greater than or equal to 500 m². 2 / m 3 This helps improve ammonia nitrogen removal efficiency, enabling more efficient wastewater purification.

[0033] In some embodiments, the constant temperature control device is an air heat pump installed in the clear water chamber 230, which can maintain the temperature of the clear water in the clear water zone and the temperature fluctuation is less than or equal to 0.5°C, thereby greatly shortening the hatching cycle of shrimp larvae and improving the hatching efficiency and survival rate of shrimp larvae.

[0034] In some embodiments, the female shrimp placement cavity 110 is formed in the inner liner plate 130, all the first separation holes are formed in the bottom wall of the inner liner plate 130, and at least one second separation hole is formed in the peripheral wall of the inner liner plate 130. The second separation hole allows shrimp eggs to pass through while preventing the female shrimp from passing through. Thus, the shrimp eggs in the female shrimp placement cavity 110 can not only sink into the shrimp larvae rearing cavity 120 through the first separation holes, but can also flow into the shrimp larvae rearing cavity 120 through the second separation holes in the side wall, greatly improving the separation efficiency of shrimp eggs and female shrimp.

[0035] Reference Figures 1 to 4 In some embodiments, at least one nozzle 160 is installed around the hatching pool 100, and nano-aeration pipes are also installed on the inner peripheral wall of the shrimp larvae rearing chamber 120. This allows the water in the hatching pool 100 to form a laminar flow, thereby preventing the accumulation of shrimp eggs and improving the hatching efficiency of shrimp eggs and the survival rate of shrimp larvae.

[0036] In some embodiments, both the hatching pool 100 and the purification pool 200 adopt an integral welded structure, which is beneficial to improving the structural strength of the hatching pool 100 and the purification pool 200.

[0037] Reference Figure 1 In some embodiments, the side wall of the hatching tank 100 is provided with at least one observation window 170, which allows staff to conveniently observe the flow of shrimp eggs and the hatching process in real time.

[0038] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A shrimp larvae incubator, characterized in that, include: Hatching pool (100), the hatching pool (100) is equipped with an inner liner (130), the inner liner (130) divides the hatching pool (100) into a mother shrimp placement chamber (110) and a shrimp larvae rearing chamber (120), the shrimp larvae rearing chamber (120) is at least partially located below the mother shrimp placement chamber (110), the bottom wall of the mother shrimp placement chamber (110) is provided with a plurality of first separation holes, the first separation holes allow shrimp eggs to pass through and prevent the mother shrimp from passing through, the bottom wall of the shrimp larvae rearing chamber (120) is provided with a plurality of filter holes for preventing the shrimp eggs and shrimp larvae from passing through; A purification tank (200) is located below the hatching tank (100). The purification tank (200) is provided with a sedimentation chamber (210), a biochemical chamber (220) and a clear water chamber (230) connected in sequence. The sedimentation chamber (210) is connected to the shrimp larvae rearing chamber (120) through the filter holes. The biochemical chamber (220) is provided with an ammonia nitrogen removal device. The clear water chamber (230) is connected to the mother shrimp placement chamber (110) and / or the shrimp larvae rearing chamber (120). The clear water chamber (230) is also provided with a constant temperature control device.

2. The shrimp larvae incubator according to claim 1, characterized in that, The hatching tank (100) also has a filter chamber (140) located below the shrimp larvae rearing chamber (120). A filter plate (150) is installed in the hatching tank (100) between the filter chamber (140) and the shrimp larvae rearing chamber (120). All the filter holes are opened on the filter plate (150). The sedimentation chamber (210) is connected to the filter chamber (140).

3. The shrimp larvae incubator according to claim 2, characterized in that, The filter plate (150) extends along the length of the hatching pool (100). In the width direction of the hatching pool (100), the filter plate (150) gradually extends upward from the middle to both ends, so that the bottom width of the shrimp seedling cultivation chamber (120) gradually decreases from top to bottom.

4. The shrimp larvae incubator according to claim 3, characterized in that, The filter plate (150) is arranged at an angle from front to back along the length of the hatching pool (100). The mother shrimp placement cavity (110) is located at the front end of the hatching pool (100). The lower end of the rear side wall of the hatching pool (100) is provided with a shrimp seedling collection pipe that is connected to the shrimp seedling cultivation cavity (120). The clear water chamber (230), the biochemical chamber (220), and the sedimentation chamber (210) are arranged sequentially from front to back along the length of the purification tank (200).

5. The shrimp larvae incubator according to claim 1, characterized in that, The periphery of the sedimentation chamber (210) has a guide surface (211) that is connected to the bottom wall and is arranged outward from bottom to top. The sedimentation chamber (210) is also provided with filter cotton (212). The filter cotton (212) is connected to the lower end of the guide surface (211). The part of the sedimentation chamber (210) located below the filter cotton (212) is connected to the biochemical chamber (220).

6. The shrimp larvae incubator according to claim 1, characterized in that, The ammonia nitrogen removal device is a volcanic rock packing material filled in the biochemical chamber (220), wherein the specific surface area of ​​the volcanic rock packing material is greater than or equal to 500 m². 2 / m 3 .

7. The shrimp larvae incubator according to claim 1, characterized in that, The constant temperature control device is an air heat pump installed in the clear water chamber (230).

8. The shrimp larvae incubator according to claim 1, characterized in that, The female shrimp placement cavity (110) is opened in the inner liner plate (130), all the first separation holes are opened in the bottom wall of the inner liner plate (130), and at least one second separation hole is opened in the peripheral wall of the inner liner plate (130). The second separation hole allows the shrimp eggs to pass through and prevents the female shrimp from passing through.

9. The shrimp larvae incubator according to claim 8, characterized in that, At least one nozzle (160) is installed around the hatching pool (100); a nano-aeration pipe is also installed on the inner peripheral wall of the shrimp larvae rearing chamber (120).

10. The shrimp larvae incubator according to claim 1, characterized in that, Both the incubation pool (100) and the purification pool (200) are integral welded structures, and the side wall of the incubation pool (100) is provided with at least one observation window (170).

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