CN213343947U

CN213343947U - Double-annular air-supply type hatching device

Info

Publication number: CN213343947U
Application number: CN202022276510.5U
Authority: CN
Inventors: 刘国兴; 郑友; 陆海莉; 霍春林; 李春林; 郑啸宇; 郝忱; 丁淑燕
Original assignee: Freshwater Fisheries Research Institute of Jiangsu Province
Current assignee: Freshwater Fisheries Research Institute of Jiangsu Province
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-06-04
Anticipated expiration: 2030-10-14

Abstract

A double-annular air-supply type hatching device is characterized by comprising a cylindrical central air table (1), an inner ring (2) and an outer ring (3), wherein an air pipe (4) is arranged at the center of the cylindrical central air table (1), and the air inlet end of the air pipe (4) is communicated with an air source; directional nozzles (7) are arranged at the bottoms of the inner hatching water tank (5) and the outer hatching water tank (6), and the nozzles (7) supplement hatching water for the inner hatching water tank (5) and the outer hatching water tank (6) and enable the hatching water to flow in a one-way rotating mode; overflow holes (8) and egg blocking nets (9) are arranged on the inner walls of the inner circular ring (2) and the outer circular ring (3); the bottoms of the inner hatching water tank (5) and the outer hatching water tank (6) are respectively provided with a fry collecting hole (10) for draining water and collecting fry; the seedling collecting hole (10) is provided with a hole sealing pipe (11) which can be inserted and pulled and is higher than the hatching water surface. The utility model discloses simple structure, the hatchability is high.

Description

Double-annular air-supply type hatching device

Technical Field

The utility model relates to an aquaculture technique, especially a three big domestic fish fry hatching technique, specifically speaking are double annular tonifying qi type hatching apparatus.

Background

At present, three major Chinese carps are main aquaculture species in China, fry hatching technology of the three major Chinese carps attracts attention of various farmers all the time, fry hatching rate is improved, and simulated spawn hatching in a natural environment is a target pursued by aquaculture workers all the time. In recent years, a hatching device which realizes the circulating flow of water in a hatching pond by using the water pressure of a water source and a one-way nozzle obtains good effects, but most of the hatching devices are lack of an oxygen supply device and are mainly of long waist-shaped single ring structures, so that the occupied area is large, and only a single fish species can be hatched at one time, and therefore improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems of single variety, large occupied area, lack of necessary oxygen supply device and the like of the existing hatching device and designing a double annular air supplement type hatching device.

The technical scheme of the utility model is that:

a double-ring air-supply type hatching device is characterized by comprising a cylindrical central air table 1, an inner ring 2 and an outer ring 3, wherein an air pipe 4 is installed in the center of the cylindrical central air table 1, the air inlet end of the air pipe 4 is communicated with an air source, the air outlet end of the air pipe 4 is connected with a plurality of miniature aeration heads, and the miniature aeration heads extend into an inner hatching water tank 5 formed between the central air table 1 and the inner ring 2 and an outer hatching water tank 6 formed between the inner ring 2 and the outer ring 3 to supplement oxygen in water; directional nozzles 7 are arranged at the bottoms of the inner hatching water tank 5 and the outer hatching water tank 6, the directional nozzles 7 are connected with a pressure water source through respective pipelines, and the nozzles 7 supplement hatching water for the inner hatching water tank 5 and the outer hatching water tank 6 and enable the hatching water to flow in a unidirectional rotation mode; overflow holes 8 are arranged on the inner walls of the inner circular ring 2 and the outer circular ring 3, the overflow holes 8 are connected with a drain pipe arranged at the bottom of the tank, and a circle of egg blocking net 9 for preventing the roes from flowing out of the overflow holes 8 is respectively arranged on the inner walls of the inner circular ring 2 and the outer circular ring 3; the bottoms of the inner hatching water tank 5 and the outer hatching water tank 6 are respectively provided with a fry collecting hole 10 for draining water and collecting fries, the fry collecting holes 10 are communicated with the fish collecting tank through fry collecting pipes, and the fries flow into fry collecting nets in the fish collecting tank through the fry collecting pipes to be collected; the seedling collecting hole 10 is provided with a hole sealing pipe 11 which can be inserted and pulled and is higher than the hatching water surface.

The outer side of the outer circular ring 3 is provided with a step body 12 so as to be convenient for ascending to observe the fry hatching condition.

The ovum blocking net 9 is arranged on a triangular bracket which is fixed on the inner walls of the inner circular ring 2 and the outer circular ring 3.

The seedling collecting pipe is provided with a valve capable of controlling the flow.

And a plurality of rings with the same structure are additionally arranged on the outer side of the outer ring according to requirements.

The utility model has the advantages that:

the utility model discloses can satisfy the hatching of many varieties fry in an incubation pond.

The utility model discloses a circle ring shape hatching pond, the rivers circulation is smooth, does not have the dead angle that flows, and required pressure water source nozzle is small in quantity.

The utility model discloses can guarantee the required oxygen quantity of hatching, the oxygen deficiency phenomenon can not appear, can guarantee the hatchability.

Drawings

Fig. 1 is a schematic top view of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

As shown in fig. 1.

A double-ring air-supply type hatching device is composed of a cylindrical central air platform 1 with a concrete structure, an inner ring 2 and an outer ring 3, wherein a step body 12 is arranged on the outer side of the outer ring 3 so as to be convenient for ascending a height to observe the hatching condition of fry. The number of the outer circular rings can be one or more according to the number of hatching varieties, as shown in figure 1, all water inlet, water discharge and seedling collecting pipelines are cast in the bottom or wall body of a concrete member, an air pipe 4 is installed in the center of a cylindrical central air table 1, the air inlet end of the air pipe 4 is communicated with an air source, the air outlet end of the air pipe 4 is connected with a plurality of micro aeration heads, and the micro aeration heads extend into an inner hatching water pool 5 formed between the central air table 1 and an inner circular ring 2 and an outer hatching water pool 6 formed between the inner circular ring 2 and an outer circular ring 3 to supplement oxygen in water; directional nozzles 7 are arranged at the bottoms of the inner hatching water tank 5 and the outer hatching water tank 6, the directional nozzles 7 are connected with a pressure water source through respective pipelines, and the nozzles 7 supplement hatching water for the inner hatching water tank 5 and the outer hatching water tank 6 and enable the hatching water to flow in a unidirectional rotation mode; overflow holes 8 are arranged on the inner walls of the inner circular ring 2 and the outer circular ring 3, the distance between the overflow holes 8 and the top of the inner circular ring is adjusted to be more than 10-20 cm, the overflow holes 8 are circumferentially connected and communicated with a drainage system 16 through an internal pipeline, the overflow holes 8 are connected with a drainage pipe arranged at the bottom of the tank, a circle of egg blocking net 9 for preventing the roes from flowing out of the overflow holes 8 is further respectively arranged on the inner walls of the inner circular ring 2 and the outer circular ring 3, as shown in figure 1, the egg blocking net 9 is arranged on a triangular support, and the triangular support is fixed on the inner walls of the inner circular ring 2 and the outer circular ring 3. The pond bottom of the inner hatching pond 5 and the pond bottom of the outer hatching pond 6 are respectively provided with a seedling collecting hole 10 for draining water and collecting fish fries, the seedling collecting hole 10 is communicated with the fish collecting pond through a seedling collecting pipe, and the seedling collecting pipe is provided with a valve capable of controlling flow. The fry flows into a fry collecting net in the fry collecting pond through a fry collecting pipe to be collected; the seedling collecting hole 10 is provided with a hole sealing pipe 11 which can be inserted and pulled and is higher than the hatching water surface. All internal piping is shown in phantom in fig. 1, and the pressurized water source 13, the air source 14, the seedling collection tank 15, and the drainage system 16 are the same as or can be implemented using conventional techniques.

The utility model discloses a use method is:

before the fish hatching device is used, washing and disinfection are carried out firstly, then a pressure water source 13 is opened, water is filled into a nozzle 7, the nozzle injects water into an inner hatching pool 5 and an outer hatching pool 6 according to a set angle, the water circularly flows, when the water level reaches a set value, collected fish eggs can be placed into different hatching pools for hatching, an aeration head is placed into the inner hatching pool and the outer hatching pool, an air source 14 is opened for air supply, and the air source can be closed as required. And continuously observing, namely closing the pressure water source after the fish eggs are incubated into fry, opening the fry collecting holes 10 to collect the fry, and enabling the fry to flow into the fry collecting pool 15 to be collected.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims

1. A double-ring air-supply type hatching device is characterized by comprising a cylindrical central air table (1), an inner ring (2) and an outer ring (3), wherein an air pipe (4) is installed in the center of the cylindrical central air table (1), the air inlet end of the air pipe (4) is communicated with an air source, the air outlet end of the air pipe (4) is connected with a plurality of miniature aeration heads, and the miniature aeration heads extend into an inner hatching water pool (5) formed between the cylindrical central air table (1) and the inner ring (2) and an outer hatching water pool (6) formed between the inner ring (2) and the outer ring (3) to supplement oxygen in water; directional nozzles (7) are arranged at the bottoms of the inner hatching water tank (5) and the outer hatching water tank (6), the directional nozzles (7) are connected with a pressure water source through respective pipelines, and the nozzles (7) supplement hatching water for the inner hatching water tank (5) and the outer hatching water tank (6) and enable the hatching water to flow in a unidirectional rotation mode at the same time; overflow holes (8) are arranged on the inner walls of the inner circular ring (2) and the outer circular ring (3), the overflow holes (8) are connected with a drain pipe arranged at the bottom of the tank, and a circle of egg blocking net (9) for preventing the roes from flowing out of the overflow holes (8) is respectively arranged on the inner walls of the inner circular ring (2) and the outer circular ring (3); the bottom of each of the inner hatching water tank (5) and the outer hatching water tank (6) is provided with a fry collecting hole (10) for draining water and collecting fries, the fry collecting holes (10) are communicated with the fish collecting tank through fry collecting pipes, and the fries flow into fry collecting nets in the fish collecting tank through the fry collecting pipes to be collected; the seedling collecting hole (10) is provided with a hole sealing pipe (11) which can be inserted and pulled and is higher than the hatching water surface.

2. A double annular air-supply type hatching device as claimed in claim 1, wherein the outer side of said outer ring (3) is equipped with a step body (12) to facilitate the observation of fry hatching during ascending.

3. A double annular air-supply type hatching apparatus as claimed in claim 1, wherein said egg-obstructing nets (9) are mounted on a triangular frame fixed to the inner walls of the inner (2) and outer (3) rings.

4. The dual annular air-supplying hatching apparatus as set forth in claim 1, wherein said seedling collecting pipe is provided with a valve for controlling flow rate.

5. A dual ring air-supplement type hatching apparatus as claimed in claim 1, wherein a plurality of rings having the same structure are additionally provided outside the outer ring as required.