A hatching pond for hatching mandarin fish

Abstract

The utility model proposes a hatching pond for mandarin fish hatching, comprising a hatching pond body and a fish intercepting net. The top of the hatching pond body is designed to be open, and a ring-shaped fish intercepting net is fixedly connected to the middle of the inner side of the hatching pond body, and the outer side of the fish intercepting net is wrapped with a mesh. The advantages of the utility model are: the hatching pond body uses the horizontal rotation of water flow and the longitudinal tumbling of air flow to jointly promote the floating of fish eggs, which can be more conducive to the uniform dispersion of fish eggs and is not easy to form a group. The aeration plate surrounding the pond body can also ensure the dissolved oxygen content of each area of ​​the water body, reducing the situation that the local fish eggs have a long hatching time or dead eggs due to low dissolved oxygen; the hatching area is separated from the central return water area and the cross-sectional area of ​​the central return water area is increased, which can reduce the floating state of the fish eggs affected by the return water and water exchange process; the spatial structure of the pond body is large and simple, and can also meet the hatched young fish with a good living space inside.

Description

Technical Field

[0001] The utility model relates to the technical field of mandarin fish hatching, in particular to a hatching pool for mandarin fish hatching. Background Art

[0002] Mandarin fish eggs are non-sticky semi-buoyant eggs. During hatching, a stable water flow is needed to make the eggs roll and keep them floating to prevent the eggs from piling up and causing insufficient dissolved oxygen, delayed embryonic development, or even suffocation and death. Small space and fast water flow can easily cause the egg membrane to be punctured, thereby reducing the hatching rate of the eggs. Traditional hatching methods mostly use hatching tanks or hatching buckets for hatching, and use aeration at the bottom to make the water flow roll. First, the space is too small, and second, the single water flow method is easy to cause local accumulation of fish eggs. Small space is also easy to cause some fish eggs to be punctured by large airflow, thereby reducing hatching efficiency and survival rate. When the water is automatically changed and discharged, the central sewage pipe is in direct contact with the fish egg hatching area. When the water flows back to the water, it is easy to generate a certain suction force, which is also easy to cause the fish eggs to gather in groups under the action of the water flow.

[0003] The invention aims to provide a special hatching pond for mandarin fish, which can ensure that the mandarin fish eggs can float evenly in the water body all the time when hatching in factory-scale circulating water culture, and the fish eggs will not be aggregated in clusters during the water circulation process, thereby improving the hatching efficiency and survival rate of the mandarin fish eggs. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the utility model is to provide a hatching pond for hatching mandarin fish, so as to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned object, an embodiment of the utility model provides a hatching pond for hatching mandarin fish, comprising a hatching pond body and a fish blocking net, wherein the top of the hatching pond body is open, and a ring-shaped fish blocking net is fixedly connected to the middle of the inner side of the hatching pond body;

[0007] The outside of the fish blocking net is wrapped with a mesh cloth, and an aeration plate is fixedly connected to the bottom edge of the inner side of the hatching pond body;

[0008] A connecting pipe is fixedly connected to the inner wall of the incubation tank body, an air inlet is fixedly connected to the outer side of the incubation tank body, and the air inlet, the connecting pipe and the aeration disk are connected;

[0009] The outer side of the incubation tank body is fixedly connected with a water inlet, and the bottom of the inner side of the incubation tank body is fixedly connected with a plurality of duckbill nozzles in an annular array, and the duckbill nozzles are connected with the water inlet;

[0010] A central sewage outlet is provided at the bottom of the incubation tank body, and an emptying outlet is provided at the bottom of the incubation tank body and the emptying outlet is connected to the central sewage outlet;

[0011] A water return port is installed on the side of the hatching tank body.

[0012] Preferably, any of the above schemes is that the hatching pond body is circular as a whole, the bottom of the hatching pond body is designed to be a conical bottom, and the aeration plate has an aeration port facing upward.

[0013] The above technical solution is adopted: the fish egg hatching area is located in the annular area between the hatching pond body and the fish retaining net, and the outside of the fish retaining net is wrapped with mesh cloth. The purpose of setting the fish retaining net is mainly two aspects. First, it can prevent the central sewage outlet from having a certain suction force during the return water process due to the effect of water flow during the factory-scale circulating water hatching process, thereby causing the fish eggs to gather in clusters; second, it can prevent the young fish from escaping from the hatching pond.

[0014] The central sewage outlet is connected with the external return water outlet and the emptying outlet. The water body flows back to the factory-scale circulating water aquaculture water treatment equipment area through the return water outlet for treatment. The treated water body enters the water inlet for circulation. The water inlet is connected with the duckbill nozzle at the bottom of the pool. The duckbill nozzle is used to push the flow at the bottom of the hatching pool body to make the water body rotate, and at the same time, it also prevents the fish eggs from depositing at the bottom. In this way, the fish eggs float in the water body under the action of the water flow; an air inlet is arranged on the top of the hatching pool body for connecting the external fan gas. The air inlet is connected with the aeration plate at the bottom of the pool body through a connecting pipe. The aeration plate aerates at the bottom to prevent the fish eggs from depositing at the bottom. Secondly, it can prevent the fish eggs from clumping by combining the vertical push flow method with the rotating water flow method. Finally, it can also add sufficient oxygen to the water body to increase the dissolved oxygen content of the hatching water body.

[0015] Preferably, any of the above schemes is that the outer end of the air inlet is connected to an external fan.

[0016] Preferably, any of the above schemes is that the duckbill nozzle is located outside the fish blocking net, and the water spraying direction of the duckbill nozzle is horizontal.

[0017] Adopting the above technical solution: the core structure of the device is: fish blocking net, aeration plate, connecting pipe, air inlet, water inlet, duckbill nozzle.

[0018] The core advantages of this device are:

[0019] 1. The annular hatching space between the hatching pond body 1 and the fish blocking net 2.

[0020] 2. The two forces of horizontal water flow and vertical air flow jointly push the fish eggs to roll and float.

[0021] 3. The conical bottom design of the pool bottom has good sewage collection effect.

[0022] 4. The central water return area is separated from the fish egg hatching area, and the water return process does not affect the floating trajectory of the fish eggs.

[0023] 5. Both the water inlet and the air inlet are equipped with regulating valves, which are controllable and can be adjusted to the best stable floating state.

[0024] Preferably, from any of the above schemes, the central sewage outlet is also connected to the return water outlet, and the central sewage outlet is located on the inner side of the fish blocking net.

[0025] Preferably, any of the above schemes allows the water in the hatching tank to return to the water treatment equipment.

[0026] The hatching pool uses the horizontal rotation of water flow and the longitudinal tumbling of air flow to push the fish eggs to float, which is more conducive to the even dispersion of fish eggs and prevents them from clumping.

[0027] The aeration plate surrounding the pond can also ensure the dissolved oxygen concentration in every area of ​​the water body, reducing the risk of long hatching time or dead eggs due to low dissolved oxygen in some parts of the fish eggs; the hatching area is separated from the central return water area and the cross-sectional area of ​​the central return water area is increased, which can reduce the impact on the floating state of the fish eggs during the return water and water exchange process; the pond body has a large and simple spatial structure, which can also provide a good living space for the hatched young fish inside.

[0028] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0029] The hatching pond for hatching mandarin fish is equipped with a fish intercepting net, an aeration plate, a connecting pipe, an air inlet, a water inlet, and a duckbill nozzle. The hatching pond body promotes the floating of fish eggs by means of horizontal rotation of water flow and longitudinal tumbling of air flow, which is more conducive to evenly spreading the fish eggs and preventing them from clumping.

[0030] The aeration plate surrounding the pond can also ensure the dissolved oxygen concentration in every area of ​​the water body, reducing the risk of long hatching time or dead eggs due to low dissolved oxygen in some parts of the fish eggs; the hatching area is separated from the central return water area and the cross-sectional area of ​​the central return water area is increased, which can reduce the impact on the floating state of the fish eggs during the return water and water exchange process; the pond body has a large and simple spatial structure, which can also provide a good living space for the hatched young fish inside.

[0031] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0033] Figure 1 It is a structural schematic diagram of the utility model.

[0034] In the figure: 1-hatching pond body, 2-fish blocking net, 3-aeration plate, 4-connecting pipe, 5-air inlet, 6-water inlet, 7-duckbill nozzle, 8-central sewage outlet, 9-drain outlet, 10-water return outlet. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] like Figure 1 As shown, the hatching pond for hatching mandarin fish comprises a hatching pond body 1 and a fish blocking net 2. The top of the hatching pond body 1 is open, and the middle of the inner side of the hatching pond body 1 is fixedly connected with a ring-shaped fish blocking net 2;

[0038] The outside of the fish blocking net 2 is wrapped with a mesh cloth, and an aeration plate 3 is fixedly connected to the bottom edge of the inner side of the hatching tank body 1;

[0039] A connecting pipe 4 is fixedly connected to the inner wall of the hatching tank body 1, and an air inlet 5 is fixedly connected to the outer side of the hatching tank body 1. The air inlet 5, the connecting pipe 4, and the aeration plate 3 are connected;

[0040] The outer side of the hatching pool body 1 is fixedly connected with a water inlet 6, and the bottom of the inner side of the hatching pool body 1 is fixedly connected with a plurality of duckbill nozzles 7 in a circular array, and the duckbill nozzles 7 are connected with the water inlet 6;

[0041] A central sewage outlet 8 is provided at the bottom of the incubation tank body 1, and an emptying outlet 9 is provided at the bottom of the incubation tank body 1 and the emptying outlet 9 is connected to the central sewage outlet 8;

[0042] A water return port 10 is installed on the side of the hatching tank body 1.

[0043] Embodiment 1: The hatching pool body 1 is circular in shape as a whole, and the bottom of the hatching pool body 1 is designed as a cone bottom, and the aeration plate 3 has an aeration port facing upward. The outer end of the air inlet 5 is connected to an external fan. The duckbill nozzle 7 is located outside the fish intercepting net 2, and the water spraying direction of the duckbill nozzle 7 is horizontal. The core structure of this device is: fish intercepting net 2, aeration plate 3, connecting pipe 4, air inlet 5, water inlet 6, duckbill nozzle 7.

[0044] The core advantages of this device are:

[0045] 1. The annular hatching space between the hatching pond body 1 and the fish blocking net 2.

[0046] 2. The two forces of horizontal water flow and vertical air flow jointly push the fish eggs to roll and float.

[0047] 3. The conical bottom design of the pool bottom has good sewage collection effect.

[0048] 4. The central water return area is separated from the fish egg hatching area, and the water return process does not affect the floating trajectory of the fish eggs.

[0049] 5. Both the water inlet and the air inlet are equipped with regulating valves, which are controllable and can be adjusted to the best stable floating state.

[0050] Embodiment 2: The central sewage outlet 8 is also connected to the water return outlet 10, and the central sewage outlet 8 is located inside the fish intercepting net 2. The water return outlet 10 allows the water in the hatching pool body 1 to return to the water treatment equipment. The hatching pool body 1 uses the horizontal rotation of the water flow and the longitudinal tumbling of the air flow to jointly push the fish eggs to float, which is more conducive to the uniform dispersion of the fish eggs and is not easy to form a mass;

[0051] The aeration plate 3 surrounding the pool body can also ensure the dissolved oxygen concentration in each area of ​​the water body, reducing the situation where the local fish eggs are incubated for a long time or dead eggs due to low dissolved oxygen; the hatching area is separated from the central return water area and the cross-sectional area of ​​the central return water area is increased, which can reduce the floating state of the fish eggs during the return water and water exchange process; the pool body has a large and simple spatial structure, which can also meet the hatched young fish with a good living space inside.

[0052] The working principle of the utility model is as follows:

[0053] The fish egg hatching area is located in the annular area between the hatching pond body 1 and the fish retaining net 2. The outside of the fish retaining net 2 is wrapped with a mesh. The purpose of setting the fish retaining net 2 is mainly two aspects. First, it can prevent the central sewage outlet 8 from having a certain suction force during the return water process due to the effect of the water flow during the factory-scale circulating water hatching process, thereby causing the fish eggs to gather in clusters; second, it can prevent the young fish from escaping from the hatching pond.

[0054] The central sewage outlet 8 is connected with the external water return outlet 10 and the emptying outlet 9. The water body flows back to the factory-scale circulating water aquaculture water treatment equipment area through the water return outlet 10 for treatment. The treated water body enters the water inlet 6 for circulation. The water inlet 6 is connected with the duckbill nozzle 7 at the bottom of the pool. The duckbill nozzle 7 is used to push the flow at the bottom of the hatching pool body 1 to rotate the water body, and at the same time, it also prevents the fish eggs from depositing at the bottom. In this way, the fish eggs float in the water body under the action of the water flow; an air inlet 5 is arranged on the top of the hatching pool body 1 for connecting the external fan gas. The air inlet 5 is connected with the aeration plate 3 at the bottom of the pool body through the connecting pipe 4. The aeration plate 3 can prevent the fish eggs from depositing at the bottom by aeration at the bottom. Secondly, it can also prevent the fish eggs from agglomerating by combining the vertical push flow mode with the rotating water flow mode. Finally, it can also add sufficient oxygen to the water body to increase the dissolved oxygen content of the hatching water body.

[0055] Compared with the prior art, the present invention has the following beneficial effects:

[0056] The hatching pond for hatching mandarin fish is provided with a fish intercepting net 2, an aeration plate 3, a connecting pipe 4, an air inlet 5, a water inlet 6, and a duckbill nozzle 7. The hatching pond body 1 promotes the floating of fish eggs by means of horizontal rotation of water flow and longitudinal tumbling of air flow, which is more conducive to evenly spreading the fish eggs and preventing them from agglomerating.

[0057] The aeration plate 3 surrounding the pool body can also ensure the dissolved oxygen concentration in each area of ​​the water body, reducing the situation where the local fish eggs are incubated for a long time or dead eggs due to low dissolved oxygen; the hatching area is separated from the central return water area and the cross-sectional area of ​​the central return water area is increased, which can reduce the floating state of the fish eggs during the return water and water exchange process; the pool body has a large and simple spatial structure, which can also meet the hatched young fish with a good living space inside.

Claims

1. A hatching pond for hatching mandarin fish, characterized in that: It comprises a hatching pond body (1) and a fish blocking net (2), wherein the hatching pond body (1) is designed to be open at the top, and the middle part of the inner side of the hatching pond body (1) is fixedly connected with an annular fish blocking net (2); The outside of the fish blocking net (2) is wrapped with a mesh cloth, and an aeration plate (3) is fixedly connected to the bottom edge of the inner side of the hatching pond body (1); A connecting pipe (4) is fixedly connected to the inner wall of the hatching tank body (1), an air inlet (5) is fixedly connected to the outer side of the hatching tank body (1), and the air inlet (5), the connecting pipe (4) and the aeration plate (3) are connected; The outer side of the hatching pool body (1) is fixedly connected with a water inlet (6), and the bottom of the inner side of the hatching pool body (1) is fixedly connected with a plurality of duckbill nozzles (7) in a circular array, and the duckbill nozzles (7) are in communication with the water inlet (6); The bottom of the incubation tank body (1) is provided with a central sewage outlet (8), and the bottom of the incubation tank body (1) is provided with an emptying outlet (9), and the emptying outlet (9) is connected to the central sewage outlet (8); A water return port (10) is installed on the side of the hatching tank body (1).

2. A hatching pond for hatching mandarin fish as claimed in claim 1, characterized in that: The hatching pond body (1) is circular in shape as a whole, the bottom of the hatching pond body (1) is designed to be a conical bottom, and the aeration plate (3) of the hatching pond body (1) has an aeration port facing upwards.

3. A hatching pond for hatching mandarin fish as claimed in claim 2, characterized in that: The outer end of the air inlet (5) is connected to an external fan.

4. A hatching pond for hatching mandarin fish as claimed in claim 3, characterized in that: The duckbill nozzle (7) is located outside the fish blocking net (2), and the water spraying direction of the duckbill nozzle (7) is horizontal.

5. A hatching pond for hatching mandarin fish as claimed in claim 4, characterized in that: The central sewage outlet (8) is also connected to the water return outlet (10), and the central sewage outlet (8) is located on the inner side of the fish blocking net (2).

6. A hatching pond for hatching mandarin fish as claimed in claim 5, characterized in that: The water return port (10) allows the water in the hatching tank body (1) to return to the water treatment equipment.

Images