CN112790145B

CN112790145B - Shallow water three-dimensional multilayer intensive high-density culture system

Info

Publication number: CN112790145B
Application number: CN202110163325.1A
Authority: CN
Inventors: 张凯信; 吴秋田; 柯阳华; 杨心宸
Original assignee: Beijing Aike Fox Ecological Technology Co ltd
Current assignee: Beijing Aike Fox Ecological Technology Co ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2023-09-22
Anticipated expiration: 2041-02-05
Also published as: CN112790145A

Abstract

The application provides a shallow water three-dimensional multilayer intensive high-density culture system, which comprises a plurality of layers of shallow water culture tanks, a water injection pipeline, a double-layer drain pipe and water treatment integrated equipment which are arranged up and down, wherein the water injection pipeline is arranged above the uppermost layer of shallow water culture tanks and is used for controlling water injection quantity; the water inlet and the water outlet of each layer of shallow water culture tank are positioned in the diagonal direction of the culture tank, and each layer of shallow water culture tank is internally provided with one double-layer drain pipe; the lowest layer shallow water culture tank is connected with the water treatment integrated equipment, and the water treatment integrated equipment is used for purifying the sewage discharged from the upper part. The application adopts a self-circulation drainage mode from top to bottom, combines devices such as a double-layer drain pipe, an unpowered dissolved oxygen booster, a residue separator and the like, and is matched with water treatment integrated equipment, so that the water dissolved oxygen amount can be increased, the water quality is improved, the occurrence of diseases is reduced, no emission, no pollution, no medicine and no antibiotics can be realized, and the product is green, safe, ecological and environment-friendly.

Description

Shallow water three-dimensional multilayer intensive high-density culture system

Technical Field

The application relates to a multi-layer aquaculture system, in particular to a shallow water three-dimensional multi-layer intensive high-density aquaculture system.

Background

The Chinese prawn farming industry faces serious sustainable development problems in recent years. The disease is serious in partial areas and has a spreading trend; in some areas, the growth of the prawns is delayed in some time, so that the culture fails and even the prawns lose the effect.

At present, 6 modes are commonly adopted for domestic traditional cultivation, and the modes are as follows:

1) A soil pond rough cultivation mode;

2) A soil pond culture mode;

3) A pond semi-fine breeding mode;

4) A segmented high pool intensive culture mode;

5) A fish and shrimp polyculture mode;

6) And (5) a factory high-level pond culture mode.

The 6 modes are high in yield in the sectional high-level pool intensive culture mode and the factory culture mode, but the conventional methods of the two culture modes have very high requirements from feeding to water quality management, and the problems of water and soil resource waste, water pollution, environmental pollution, high drug consumption caused by diseases, high culture cost and the like exist at present.

Based on the management regulations of sustainable development, green ecological environment protection, food safety and the like of Chinese aquaculture, more advanced and innovative cultivation modes and cultivation technologies which accord with the future development of China are needed.

Similar to the present application in the prior art, taiwan patent "multi-layered cultivation system" is known. The patent technology is proposed based on the high-density cultivation systems of U.S. patent nos. 4368691, 4446025 and 5961831, and the main problem in the above patent is that the predation rate increases due to the increase of cultivation density, and the yield decreases. To solve this problem, a technique for effectively managing aquatic crustacean behavior at a high culture density has been proposed. Mainly uses the light contrast tendency of the aquatic crustaceans to design a method and device for managing the movement or positioning of the aquatic crustaceans. As shown in FIG. 1, the multi-layered cultivation system mainly comprises a plurality of containers (cultivation tanks) 1 for holding cultivation water bodies, a device for displaying contrast effect in a specific area in a single container or each container, a device for sewage drainage, and a water treatment integrated device.

In addition, the prior art is similar to the application, and the taiwan novel patent of three-stage cavitation super-intensive shrimp culture system is also provided. The three-section cavitation super-intensive shrimp culturing system is characterized in that the shrimp, the middle shrimp and the large shrimp are divided into three culturing areas, each culturing area is respectively provided with a culturing groove 1, a sewage reservoir 23, a cavitation separator 2 and a biochemical filtering pond 25, so that shrimp farmers can harvest the large shrimps in a short time interval, the harvest period is increased, and the work of pool moving and pool cleaning of the shrimp groups is performed during the harvest period.

However, the above-mentioned "multi-layered cultivation system" uses the light-shielding living characteristics of the aquatic crustacean, and it is necessary to use some artificial light sources, and the aquatic crustacean will reduce the growth rate under the influence of light, the foraging activity will be reduced, and the introduction of the light sources will adversely affect the natural nature of the weak light. In addition, in the above-mentioned "multi-layered cultivation system", the design of the shallow water tank and the water flow device easily causes insufficient water-soluble oxygen, and even if the oxygen supply equipment is added, the oxygen is volatilized when not being dissolved in the water due to shallower water surface, which is unfavorable for the growth of aquatic crustaceans.

The main disadvantage of the above-mentioned three-stage cavitation super-intensive shrimp culture system is that the size of the shrimp body is partitioned only on the basis of traditional culture, and during the harvest period, the operations of shrimp group pool moving and pool cleaning still need to be carried out, so that the sewage treatment efficiency is low, and the sewage water reservoir 23, the biochemical water filtering pool 25 and the like must be individually arranged in each culture area, so that the space is occupied and the working efficiency is low.

Accordingly, there is a need for further improvements over the prior art.

Disclosure of Invention

The application aims to provide a shallow water three-dimensional multilayer intensive high-density culture system, which can solve the problems of water resource waste, land resource waste, environmental pollution, high maintenance cost, disease source cross infection and the like caused by the existing intensive shrimp culture mode, and simultaneously solve the technical problems of insufficient water dissolved oxygen in the process of the existing indoor multilayer aquaculture mode, slow growth speed, reduced survival rate and indoor noise pollution of factories caused by the influence of illumination.

The application provides a shallow water three-dimensional multilayer intensive high-density culture system, which comprises a plurality of layers of shallow water culture tanks, a water injection pipeline, a double-layer drain pipe and water treatment integrated equipment, wherein the layers of shallow water culture tanks are arranged up and down in the vertical direction, and each layer of shallow water culture tank is used for culturing aquatic crustaceans at the same stage;

the water injection pipeline is arranged above the shallow water culture tank at the uppermost layer, a valve is arranged on a main pipeline of the water injection pipeline, and the valve is used for controlling water injection quantity;

the water inlet and the water outlet of each layer of shallow water culture tank are respectively positioned in the diagonal direction of the shallow water culture tank, one double-layer drain pipe is arranged in each layer of shallow water culture tank, and the double-layer drain pipes are arranged in the water outlets of each layer of shallow water culture tank;

the shallow water culture tank at the lowest layer is connected with the water treatment integrated equipment, and the water treatment integrated equipment is used for purifying the sewage discharged from the upper part;

the double-layer drain pipe comprises an outer pipe and an inner pipe, wherein the inner pipe comprises an upper section pipeline and a lower section pipeline, the upper section pipeline is movably connected with the lower section pipeline, a plurality of first water inlets are formed in the bottom of the outer side of the outer pipe, the height of the upper edge of the inner pipe is lower than that of the upper edge of the outer pipe, the inner pipe is used for controlling the water level height of the shallow water culture tank, and the size of the upper section pipeline is the same as the size design of the lower section pipeline; the water flow flows in from the first water inlet hole, flows up to the upper edge opening of the inner tube along the inner tube, then flows down to the shallow water culture tank at the lower layer through the inner part of the inner tube after flowing over the upper edge opening in a proper state.

Preferably, the device further comprises an dissolved oxygen booster, wherein the dissolved oxygen booster is used for being placed inside an inner pipe of the double-layer drain pipe so as to increase the dissolved oxygen amount of the water body;

the dissolved oxygen booster is designed into a conical structure in appearance and comprises a flow director, an air inlet pipe and a first flow deflector;

the flow guider is arranged at the uppermost part and is designed into a disc shape;

the air inlet pipe is fixedly connected below the deflector, an air inlet pipe is arranged in the middle of the air inlet pipe, and the air inlet pipe is communicated with the outside air;

the first guide plates are symmetrically arranged around the air inlet pipe and used for guiding water flow to flow downwards to the lower layer of the shallow water culture tank along the inner wall of the inner pipe.

Preferably, the inner wall of the inner tube is provided with a second deflector which is arranged at the same height position as the lower port of the air inlet tube and is used for enabling water flow to be fully fused with air at the bottom end of the air inlet tube.

Preferably, the inner wall of the inner pipe is also provided with a plurality of shower plates, a plurality of shower plates are fixedly arranged in an up-down layered manner, and the shower plates are arranged into a net structure.

Preferably, the device also comprises a residue separator, wherein the residue separator is sleeved outside the outer tube and is used for filtering shell and solid residues of aquatic crustaceans, and the residue separator comprises a sleeve, a dirt fixing plate and a drilling filtering plate;

the sleeve is sleeved outside the outer tube, a plurality of second water inlet holes are formed in the bottom of the outer side of the sleeve, and the second water inlet holes correspond to the first water inlet holes in arrangement positions;

the drilling filtering plate is arranged to be a circular net-shaped filter plate, and the drilling filtering plate is fixedly arranged outside the sleeve through the dirt fixing plate.

Preferably, the casing is fixedly provided with an upper layer of drilling filtering plates and a lower layer of drilling filtering plates.

Preferably, black plastic meshes are arranged on the inner wall of each shallow water culture tank, and the black plastic meshes are used for aquatic crustacean organisms to climb and inhabit.

Preferably, each shallow water culture tank is provided with crisscrossed net wires at a position with high water surface, and black plastic meshes are hung on the net wires.

Preferably, an escape-proof net is arranged above each layer of shallow water culture tank, the escape-proof net covers the shallow water culture tank, and the escape-proof net is used for preventing aquatic crustacean organisms from escaping in the culture process;

the escape prevention net comprises a left escape prevention net and a right escape prevention net, the left escape prevention net is larger than the right escape prevention net in size, an air vent is arranged on the right escape prevention net, and the air vent is internally used for installing the double-layer drain pipe.

Preferably, the upper section pipeline and the lower section pipeline are connected through a threaded connection or a tooth joint.

Compared with the prior art, the shallow water three-dimensional multilayer intensive high-density culture system has the following beneficial effects:

1. the application designs a bionic environment which accords with benthic aquatic crustaceans such as sea shrimp and mollusk from the biological habit, utilizes devices such as a perching net, an escape-proof net and the like to create a weak light environment, helps the cultured products to be in an active foraging state, reduces mutual attack, improves the growth speed and the survival rate, and forms the characteristics of high yield of the products.

2. The application adopts a self-circulation water discharge mode from top to bottom, and devices such as an inner layer drain pipe, an outer layer drain pipe, an unpowered dissolved oxygen pressurizer, an aquatic crustacean molting and solid residue separator, and the like, and is matched with three-dimensional circulating water integrated equipment, so that the water dissolved oxygen amount is increased, the water quality is improved, the occurrence of diseases is reduced, and the characteristics of no emission, no pollution, no medicine and no antibiotics are achieved, so that the product is green, safe, ecological and environment-friendly.

3. The application adopts the layout mode of the shallow water three-dimensional culture tank, utilizes the indoor vertical space and advanced circulating water integrated equipment, can not be influenced by regional environment and climate conditions, can be used for indoor industrial culture in any land environment, effectively reduces human negligence, saves labor cost, and has the characteristics of wide product applicability and strong universality.

4. The application adopts a mode of land indoor three-dimensional cultivation, is not limited by land area, can greatly improve the cultivation area, and meanwhile, due to the arrangement of indoor bionic environment, the cultivated products can be continuously propagated and grown, the production period is increased to 12 times per year, the productivity is increased, and the characteristics of strong product concentration and high cultivation density are formed.

5. The application adopts the multi-layer small-area shallow water culture tanks, can culture the sea white shrimps in a growing stage, prevents the large shrimps from eating the shrimps, is dispersed in a plurality of culture tanks, can effectively block the horizontal transmission of the disease source, prevents cross infection, and has the characteristics of high survival rate and strong controllability.

6. The intelligent alarm monitoring camera device can adopt the most advanced IOT intelligent alarm monitoring camera device, can accurately monitor the water quality change, and is suitable for large-scale popularization by combining the modern scientific and technological cultivation device with the big data acquisition and the Internet of things and the early warning function, so that the characteristics of simple and convenient product operation and simple use are formed.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is apparent that the drawings in the following description are only used to explain the concept of the present application.

FIG. 1 is a schematic diagram of a prior art multi-layered cultivation system;

FIG. 2 is a schematic diagram of a prior art three-stage cavitation super-intensive shrimp farming system;

FIG. 3 is a schematic structural view of the shallow water three-dimensional multilayer intensive high-density culture system of the application;

FIG. 4 is a schematic view of the structure of the shallow water culture tank of the application;

FIG. 5 is a schematic view of the structure of the present application in which a dissolved oxygen booster is provided in the inner tube;

FIG. 6 is a schematic view of the dissolved oxygen booster of the present application applied in shallow water culture tanks;

FIG. 7 is a schematic view of the construction of the residue separator of the present application;

FIG. 8 is a cross-sectional view of FIG. 7;

FIG. 9 is a schematic view of a shallow water culture tank with black plastic meshes;

fig. 10 is a schematic structural view of the escape-proof net of the present application.

Summarizing the reference numerals:

1. shallow water culture tank 2, main pipeline 3 and valve

4. The water outlet 5, the first water inlet 6 and the flow guider

7. Air inlet pipe 8, first guide plate 9 and deluge plate

10. Second deflector 11, sleeve 12, dirt-fixing plate

13. Drilling filtering plate 14, second water inlet hole 15 and black plastic mesh

16. Net line 17, escape-proof net 171, left escape-proof net

172. Right escape-proof net 173, vent hole 18, outer tube

19. Inner tube 20, connecting tube 21, elbow

22. Blow-down pipe 23, sewage reservoir 24 and cavitation separator

25. Biochemical filtering pool 26 and air inlet pipe

Detailed Description

Hereinafter, an embodiment of a shallow water stereoscopic multi-layered intensive high-density farming system of the present application will be described with reference to the accompanying drawings.

The examples described herein are specific embodiments of the present application, which are intended to illustrate the inventive concept, are intended to be illustrative and exemplary, and should not be construed as limiting the application to the embodiments and scope of the application. In addition to the embodiments described herein, those skilled in the art can adopt other obvious solutions based on the disclosure of the claims and specification, including any obvious substitutions and modifications to the embodiments described herein.

The drawings in the present specification are schematic views, which assist in explaining the concept of the present application, and schematically show the shapes of the respective parts and their interrelationships. Note that, in order to clearly show the structure of each part of the embodiments of the present application, the drawings are not necessarily drawn to the same scale. The same or similar reference numerals are used to denote the same or similar parts.

Fig. 1 is a schematic structural view of a multi-layered culture system in the prior art, and fig. 2 is a schematic structural view of a three-stage cavitation super-intensive shrimp culture system in the prior art.

As shown in fig. 3, the application provides a shallow water three-dimensional multilayer intensive high-density culture system, which comprises a plurality of layers of shallow water culture tanks 1, a water injection pipeline, a double-layer drain pipe and water treatment integrated equipment, wherein the layers of shallow water culture tanks 1 are arranged up and down in the vertical direction, and each layer of shallow water culture tank 1 is used for culturing aquatic crustaceans at the same stage. Different shallow water culture tanks 1 can be used for culturing aquatic crustaceans at different stages. A water injection pipeline is arranged above the uppermost shallow water culture tank 1, a valve 3 is arranged on a main pipeline 2 of the water injection pipeline, and the valve 3 is used for controlling water injection quantity. The water inlet and the water outlet 4 of each layer of shallow water culture tank 1 are respectively positioned in the diagonal direction of the shallow water culture tank 1, a double-layer drain pipe is arranged in each layer of shallow water culture tank 1, and the double-layer drain pipe is arranged in the water outlet 4 of each layer. The lowest shallow water culture tank 1 is connected with water treatment integrated equipment, and the water treatment integrated equipment is used for purifying the sewage discharged from the upper part. The water is purified and reduced into clean water quality through water treatment integrated equipment, and the clean water quality can be recycled to the uppermost shallow water culture tank 1.

The double-layer drain pipe comprises an outer pipe 18 and an inner pipe 19, wherein the inner pipe 19 comprises an upper pipeline A and a lower pipeline B, the upper pipeline A is movably connected with the lower pipeline B, the outer pipe 18 and the upper pipeline A of the inner pipe 19 are integrally arranged, a plurality of first water inlets 5 are formed in the bottom of the outer side of the outer pipe 18, the height of the upper edge of the inner pipe 19 is lower than that of the upper edge of the outer pipe 18, the inner pipe 19 is used for controlling the water level of the shallow water culture tank 1, and the upper pipeline A and the lower pipeline B are identical in size design; the water flows from the first water inlet 5, flows up to the upper edge of the inner pipe 19 along the inner pipe 19, then flows over the upper edge along the upper edge, and flows down to the lower shallow aquaculture tank 1 through the inner part of the inner pipe 19. The water outlet 4 can be provided with a thread buckle or a tooth joint, and the double-layer drain pipe is fixed at the water outlet 4 in a rotary screwing mode. The water outlet 4 in the upper shallow water culture tank 1 is a water inlet of the lower shallow water culture tank 1, and the water outlets 4 in the upper and lower adjacent shallow water culture tanks 1 are arranged on diagonal positions and are used for increasing water flow and improving water-dissolved oxygen.

The double-layer drain pipe is a sleeve-shaped device arranged at the water outlet 4 in each shallow water culture tank 1, is designed to be combined up and down, and is formed by connecting an upper section pipeline A and a lower section pipeline B through threads or an inner and outer tooth mouth joint, and the upper section pipeline A and the lower section pipeline B can be connected to form a complete inner pipe N after connection; the double-layer is formed by combining an upper pipeline A and a lower pipeline B to form an inner pipe N and an outer pipe W.

The diameter of the upper pipeline A and the diameter of the lower pipeline B are about 2.5 inches, and the upper pipeline A is used for limiting the height of the culture water body to be about 20cm; the length of the lower pipeline B is determined according to the distance between the culture tanks, but the bottom end of the pipeline B is about 2cm away from the water surface of the lower culture tank; the diameter of the outer pipe W is about 3 inches, the length of the outer pipe W is about 24cm, the outer pipe W is sleeved outside the inner pipe N, a plurality of first water inlet holes 5 are engraved on the pipe wall, the water flow speed is accelerated, larger power is formed, the outer pipe W is upwards gushed to the upper edge opening of the inner pipe 19 along the inner pipe 19, then the outer pipe W is downwards flowed to the lower shallow water culture tank 1 through the inner part of the inner pipe 19 by being smoothly overflowed to the upper edge opening; the outer tube 18 has the function of enabling water to form more kinetic energy when flowing, and has larger impact force when flowing out of the lower pipeline B and reaching the water surface of the lower shallow water culture tank 1, so that water spray with larger area is generated, and more oxygen is created by utilizing the physical principle.

It should be noted that, the bottom of the upper pipeline of the outer pipe 18 and the inner pipe 19 may be integrally disposed; or the outer pipe 18 and the upper pipeline of the inner pipe 19 are independently arranged, and the outer pipe 18 is sleeved outside the inner pipe 19 when in installation, and the inner pipe 4 is fixed in the water outlet 4 in a threaded connection or a tooth joint connection mode.

Specifically, the shallow water culture tanks 1 in the application can be flexibly arranged and combined according to the height of the floor, for example, the shallow water culture tanks 1 can be arranged into three layers, namely, an upper layer and a lower layer, and the shallow water culture tanks 1 of the three layers are in a group; aquatic crustaceans are exemplified by shrimp.

As shown in FIG. 3, each group of shallow water culture tanks 1 is three layers up and down, two groups of shallow water culture tanks 1 are arranged up and down, 3 shallow water culture tanks 1 are arranged in parallel in the horizontal direction, the total height is about 175cm, and the shallow water culture tanks are relatively in line with the height of Asians and are low in operation. The distance between the upper shallow water culture tank 1 and the lower shallow water culture tank 1 is about 25cm, the height of each shallow water culture tank 1 is about 25cm, and the water level is about 20cm; in FIG. 3, 2 groups of upper and lower shallow water culture tanks 1 are shown, and 40cm is reserved below the shallow water culture tank 1 at the lowest layer to be used as equipment and pipeline space; the uppermost shallow water culture tank 1 is reserved 60cm away from the ceiling (the longitudinal direction of the 2 groups of shallow water culture tanks 1 can reach 6 layers of shallow water culture tanks 1, so that the aquaculture area is greatly increased); 170cm of aisle space is reserved in the factory area, so that enough operation space is ensured.

A space of 60cm is reserved above the uppermost shallow water culture tanks (L6 and L3 layers as shown in fig. 3) of each group of shallow water culture tanks 1, so that the operation of workers is mainly facilitated, and meanwhile, a fall distance as high as possible is created, so that water flow has enough kinetic energy and water circulation from top to bottom is formed; the space of 25cm is reserved between the shallow water culture tanks 1 at each layer, which mainly provides a section of height when water flows downwards to form a drop, so that more water spray is created when the water flows to the water surface, and further water dissolved oxygen is increased.

The main pipeline 2 of the water injection pipeline is arranged above the uppermost shallow water culture tank 1 and is a PVC pipe with the diameter of 4 inches, a 6-branch regulating valve switch is arranged above each uppermost shallow water culture tank 1, is connected with a 6-branch pipe and keeps a certain distance from the water surface, and the water outlet 4 is positioned at the horizontal diagonal position of the water inlet. Through the drop and the downward impact force of the water flow, the water-soluble oxygen is increased, and the water flow is formed at the same time, so that the excreta waste in the tank is driven to flow from top to bottom, the water in the tank is pushed to the 5 inch PVC sewage drain pipe 22 at the lowest layer, and finally, the water flows to the water treatment integrated equipment. The multi-layer intensive high-density culture system can ensure that water in the tank is in a flowing state, so that the water quality is ensured to be clean, and medicines and antibiotics are not needed to be used at all to increase the survival rate.

As shown in fig. 3, each group of shallow water culture tanks 1 is provided with three layers of shallow water culture tanks 1, and 2 groups of shallow water culture tanks 1 are provided with 6 layers of shallow water culture tanks 1 from bottom to top respectively. The uppermost layer of the layer L6 can be used for culturing shrimp larvae, the layer L5 can be used for culturing shrimps, the layer L4-layer L3 can be used for culturing medium shrimps, and the layer L2-layer L1 can be used for culturing large shrimps. Because each shallow water culture tank 1 is provided with a water outlet 4, when the circulating water supply valve 3 at the uppermost layer is opened, water flow can form self-circulating water flow from top to bottom as shown in fig. 3. When the shrimp larvae on the L6 layer grow to the stage of the shrimps, removing the double-layer drain pipe in the water outlet on the L6 layer, and enabling the shrimps to move downwards to the L5 layer together with water flow; when the shrimps in the L5 layer grow to the middle shrimp stage, removing the double-layer drain pipes in the L5 layer, enabling the middle shrimps to flow downwards to the L4 layer together with water flow, and removing the double-layer drain pipes in the L4 layer if the space of the L4 layer is insufficient, so that part of the middle shrimps are moved to the L3 layer; when the middle shrimp of the L3-L4 layer grows to the stage of the large shrimp, the double-layer drain pipe of the L3-L4 layer is removed, and the middle shrimp moves downwards to the L2-L1 layer together with water flow.

According to the application, the culture can be carried out according to the growth stage of the shrimps, so that the shrimps in the same stage are in the same area, and unified management, feeding and the like are facilitated; the shrimps in different stages are distinguished, so that the problem that the shrimps eat the shrimps possibly caused by polyculture of the shrimps is avoided, and the survival rate is further improved; the area of each shallow water culture tank 1 is smaller, virus transmission can be effectively prevented and controlled, when diseases occur in a certain shallow water culture tank 1, healthy growth of the sea white shrimps in other shallow water culture tanks 1 is not influenced, the defect that large-area culture is easy to cross infection is overcome, and the survival rate is further improved.

As shown in fig. 4, the structure of the shallow water culture tank 1 is schematically shown, the size of the tank is 150cm*150 cm*25 cm, a water outlet 4 is arranged at a position about 30cm away from the edge of the tank, a perching net can be arranged around and in the middle of the interior of the tank, a black escape-proof net can be laid on the top of the tank, a weak light environment is further created, the sea shrimp in the tank is in a stable and flat state, and the aggressiveness of the sea shrimp is reduced.

The water outlet 4 can be used for fixing a double-layer drain pipe on one hand, circulating water flows and is discharged downwards, when the water level is higher than the upper edge opening of the upper and lower combined double-layer drain pipe, water can overflow the upper edge opening and downwards flows into the lower shallow water culture tank 1 through the inner wall of the inner pipe 19 of the double-layer drain pipe; on the other hand, when the water body in the shallow water culture tank 1 is emptied, the sea white shrimps in the shallow water culture tank 1 can move downwards to the lower shallow water culture tank 1. In order to make the sea white shrimp in the shallow water culture tank 1 move downwards, the upper and lower combined double-layer drain pipes arranged at the water outlet 4 are required to be removed, at this time, the water in the shallow water culture tank 1 can flow downwards rapidly, and the sea white shrimp in the tank moves along with the water flow due to the fact that the water surface is lowered, and automatically moves to the lower-layer shallow water culture tank 1, so that labor cost can be saved greatly, and effective management at different stages is facilitated.

As shown in fig. 5 and 6, the shallow water three-dimensional multi-layer intensive high-density cultivation system of the present application further comprises an dissolved oxygen booster for being placed inside the inner pipe 19 of the double-layer drain pipe to increase the dissolved oxygen amount of the water body. The dissolved oxygen booster is designed to be of a conical structure in appearance and comprises a flow director 6, an air inlet pipe 7 and a first flow deflector 8. The deflector 6 is arranged at the uppermost part, and the deflector 6 is designed into a disc shape; the air inlet pipe 7 is fixedly connected below the deflector 6, an air inlet pipe 26 is arranged in the middle of the air inlet pipe 7, and the air inlet pipe 26 is communicated with the outside air; the first deflectors 8 are symmetrically arranged around the air inlet pipe 7 and are used for guiding water flow to flow down to the lower shallow water culture tank 1 along the inner wall of the inner pipe 19. The first baffle 8 is designed as a vane type baffle, and may be specifically designed to have 4 or 5 equal numbers, or may be designed to have other numbers, not limited to 4 or 5.

As shown in fig. 5, the inner wall of the inner tube 19 is provided with a second deflector 10, and the second deflector 10 is disposed at the same height as the lower port of the air inlet tube 26 for sufficiently merging the water flow with the air at the bottom end of the air inlet tube 7. And, the inner wall of the inner pipe 19 is also provided with a plurality of shower plates 9, the shower plates 9 are fixedly arranged in an up-down layered manner, and the shower plates 9 are arranged into a net structure. Preferably, the shower plate 9 may be designed with 5 layers up and down, or may be designed with 4 layers or 6 layers, and the specific number is not limited.

When water flow enters the double-layer drain pipe under the pushing action, because the top of the dissolved oxygen booster and the double-layer drain pipe form a narrow gap, the water flow is compressed and limited, a larger flow speed is formed when the water flow passes through the dissolved oxygen booster, the water flows down along the first guide plate 8 and drives surrounding air to quickly sink through the air inlet pipe 26, and the water flow is fully fused with air at the bottom end of the air inlet pipe 7 under the guiding action of the second guide plate 10; meanwhile, the multi-layer mesh shower plate 9 has an aeration function, so that the passing water flow is converted into tiny water drops as much as possible, and the tiny water drops are further contacted and fused with air to generate more oxygen, so that the water-soluble oxygen quantity is improved.

The dissolved oxygen booster can increase the flow rate of water without an external power device, and increases the contact area and time of water and air in a physical way, so that the dissolved oxygen of the water is increased, a mechanical device is not needed, the circulating water is utilized to efficiently dissolve oxygen in compressed air, and oxygen is supplied to the aquaculture water while the water is supplied, so that the structure is simple, and the cost is low. Meanwhile, the dissolved oxygen booster is additionally arranged, so that the bombing sound generated when water flows down can be reduced, and the noise problem in a factory can be relieved.

The unpowered dissolved oxygen pressurizer is arranged in an inner pipe 19 of a double-layer drain pipe of various shallow water culture tanks 1 and is fixed at the water inlet position at the upper end of the double-layer drain pipe.

The application range of the unpowered dissolved oxygen pressurizer is as follows: the dissolved oxygen booster can be additionally arranged in the double-layer drain pipe of the circulating water culture system, and the dissolved oxygen amount in the circulating water can be additionally increased by additionally arranging the dissolved oxygen booster. The system can meet the water-soluble oxygen amount required in the cultivation process without a power device; for the common high-level pond culture mode, the dissolved oxygen amount can be further increased by using the device, and meanwhile, the effect of reducing the use quantity of the aerator and further reducing the cost is achieved.

As shown in fig. 7 and 8, the shallow water stereoscopic multi-layered intensive high density farming system of the present application further comprises a debris separator that is sleeved outside the outer tube 18 for filtering aquatic crustacean molting and solid debris. The residue separator comprises a sleeve 11, a dirt fixing plate 12 and a borehole filtering plate 13. The sleeve 11 is sleeved outside the outer tube 18, a plurality of second water inlet holes 14 are formed in the bottom of the outer side of the sleeve 11, and the positions of the second water inlet holes 14 correspond to those of the first water inlet holes 5 formed in the bottom of the outer tube 18; the drilling filtering plate 13 is a circular net-shaped filtering plate, and the drilling filtering plate 13 is fixedly arranged outside the sleeve 11 through the dirt fixing plate 12. Preferably, the sleeve 11 is fixedly provided with an upper layer of drilling filtering plates 13 and a lower layer of drilling filtering plates 13. Wherein, sleeve pipe 11 links to each other into a whole with two-layer drilling filtering board 13 through filth fixed plate 12, and sleeve pipe 11 cover is established in the outside of outer tube 18, when needing the clearance filth, lifts sleeve pipe 11 can.

Wherein, can also be connected with elbow 21 through connecting pipe 20 in the lower extreme of inner tube 19, be connected with blow off pipe 22 in elbow 21 department again, the rivers that discharge through inner tube 19 are to connecting pipe 20, elbow 21 and blow off pipe 22, and the integrated equipment of water treatment carries out purification, cyclic recycling.

According to the growth stage of the sea white shrimps in the shallow water culture tank 1, such as in the culture tanks of the shrimps, the middle shrimps and the large shrimps, the drilling filtering plate 13 is provided with small round holes with different apertures according to the shelling sizes of the sea white shrimps, the shelling and solid residues and the like are naturally gathered around the drilling filtering plate 13 under the pushing action of the circulating water flow, the sleeve 11 is lifted when the dirt is required to be cleaned, and the dirt on the drilling filtering plate 13 can be easily taken out and cleaned; the water flow enters between the outer tube 18 and the inner tube 19 through the water inlet holes of the sleeve 11 and the outer tube 18 according to the flowing direction shown by the arrow of fig. 6, then rises to the upper edge position of the inner tube 19, then flows to the connecting tube 20, the elbow 21 and the blow-off tube 22 through the inner tube 19, and enters the water treatment integrated equipment for purification and recycling.

The aquatic crustacean shelling and solid residue separator can be widely applied to various circulating water culture systems, such as indoor three-dimensional multilayer shallow water culture systems and square or round high-level ponds.

Because the sizes of the second water inlet holes 14 at the outer side bottom of the sleeve 11 of different residue separators are designed differently, the shallow water culture tanks 1 can be managed and marked by an expert in the culture process, and the expert can place the corresponding aquatic crustacean molting and solid residue separators according to the marks. Or can be managed by a professional culture data management platform and prompts workers to place corresponding aquatic crustacean molting and solid residue separators.

As shown in fig. 9, each shallow water culture tank 1 of the application is provided with a perching net, specifically, black plastic meshes 15 can be arranged around and in the middle of the shallow water culture tank 1, and the black plastic meshes 15 are used for aquatic crustacean organisms to climb and perch.

The perching net is a layer of hard black plastic net piece 15 with the height of about 25cm, which is arranged around the inner wall of a shallow water culture tank 1, and meanwhile, crisscrossed net wires 16 are arranged at the position of high water level in the tank, six pieces of hard black plastic net pieces 15 are hung on the net wires 16, the included angle of each net piece is 60 degrees, and the two sides of each net piece can be used for climbing and perching for the sea white shrimps; according to the growth stage of the sea white shrimps in the shallow water culture tank 1, the number of six black plastic meshes 15 can be flexibly set on the premise of not influencing the normal propulsion of water flow, the weak light environment is created, the sea white shrimps can easily climb, a comfortable habitat is formed, the aggressiveness among the sea white shrimps is reduced, and the survival rate is improved.

The hard black plastic meshes 15 arranged around the shallow water culture tank 1 are four independent hard black plastic meshes 15, and the shallow water culture tank is directly inserted and cultured against the inner wall of the culture tank during installation. The central net sheet is a six-piece hard black plastic net sheet 15, hooks can be arranged at the top end of the net sheet, net wires 16 crossing two sides are arranged above the shallow water culture tank 1, and the six-piece hard black plastic net sheet 15 is hung on the net wires 16.

The application range of the perching net of the application is that each shallow water culture tank 1 can be installed, and the shallow water culture tanks 1 do not need to distinguish shrimp/medium shrimp/big shrimp culture tanks; the conventional high-level tank can use only six-piece hard black plastic meshes 15, and the height of the meshes is adjusted according to the height of water.

As shown in fig. 10, an escape-proof net 17 can be arranged above each layer of shallow water culture tank 1, the escape-proof net 17 covers above the shallow water culture tank 1, and the escape-proof net 17 is used for preventing aquatic crustacean from escaping in the culture process. The escape prevention net 17 comprises a left escape prevention net 171 and a right escape prevention net 172, the left escape prevention net 171 is larger than the right escape prevention net 172 in size, the right escape prevention net 172 is provided with an air vent 173, and the inside of the air vent 173 is used for penetrating through a double-layer drain pipe.

As shown in fig. 10, the left part of the escape-preventing net 171 has a size of 151cm by 111cm, the right part of the escape-preventing net 172 has a size of 151cm by 40cm, the periphery of each part of the escape-preventing net is made of stainless steel, meshes are arranged in the frame, the frame keeps ventilation, strong light irradiation is prevented, a weak light environment is created, and frightened shrimps are prevented from jumping out of the water tank. Wherein, 2.5 inch aperture is reserved to the smaller right part of size prevents escaping net 172 part, and as the mounted position of double-deck drain pipe, this part can easily remove, makes things convenient for the workman to clear up the basin, take out the sea white shrimp shelling etc. in the basin, and the bigger left part prevents escaping net 171 part of size then is fixed in the basin top and can not remove.

The arrangement is to make a part of the escape-preventing net 17 positioned above the drainage device, keep fixed, and under the condition of partial movable, compared with the whole movement, the light change caused by the movement is smaller, so that the shrimps are prevented from being frightened due to sudden light brightening, and the healthy growth of the shrimps is facilitated; the other part can flexibly move, so that workers can conveniently clean the water tank, take out the shrimps in the water tank, unshelling the shrimps, and the like, and meanwhile, the double-layer drain pipe can be fixed, so that the normal use of the drain device is not influenced by frequent movement.

The multilayer shallow water culture tanks 1 are arranged in a layer-by-layer falling manner in the longitudinal direction, and the spacing is controlled to be about 25cm, so that the direct irradiation of light rays is reduced; by combining the application of the black perching net and the black escape prevention net, the principle of black light absorption is utilized to further create a weak light environment, and artificial illumination is only arranged above a pavement in a working space, so that the influence of a human illumination source on the sea white shrimps is reduced as much as possible, and the production yield of the sea white shrimps is improved.

The embodiments of the shallow water three-dimensional multilayer intensive high-density culture system of the application are described above. The specific features, such as shape, size and location, of a shallow water three-dimensional multi-layer intensive high density farming system of the present application can be specifically designed according to the effects of the features disclosed above, all of which can be accomplished by those skilled in the art. Moreover, the above disclosed features are not limited to the disclosed combinations with other features, and other combinations between features may be made by those skilled in the art in accordance with the purpose of the present application to achieve the purpose of the present application.

Claims

1. The shallow water three-dimensional multilayer intensive high-density culture system is characterized by comprising a plurality of layers of shallow water culture tanks, a water injection pipeline, a double-layer drain pipe and water treatment integrated equipment, wherein the layers of shallow water culture tanks are arranged up and down in the vertical direction, and each layer of shallow water culture tanks is used for culturing aquatic crustaceans at the same stage;

the double-layer drain pipe comprises an outer pipe and an inner pipe, wherein the inner pipe comprises an upper section pipeline and a lower section pipeline, the upper section pipeline is movably connected with the lower section pipeline, a plurality of first water inlets are formed in the bottom of the outer side of the outer pipe, the height of the upper edge of the inner pipe is lower than that of the upper edge of the outer pipe, the inner pipe is used for controlling the water level height of the shallow water culture tank, and the size of the upper section pipeline is the same as the size design of the lower section pipeline; the water flows from the first water inlet hole, flows up to the upper edge opening of the inner pipe along the inner pipe, then flows through the upper edge opening in a homeopathic manner, and flows downwards into the shallow water culture tank at the lower layer through the inner part of the inner pipe;

the water treatment device also comprises an oxygen dissolving booster which is used for being placed inside the inner pipe of the double-layer drain pipe so as to increase the oxygen dissolving amount of the water body;

the first guide plates are symmetrically arranged around the air inlet pipe and are used for guiding water flow to flow downwards to the shallow water culture tank at the lower layer along the inner wall of the inner pipe;

the inner wall of the inner pipe is provided with a second guide plate which is arranged at the same height position as the lower port of the air inlet pipe and is used for enabling water flow to be fully fused with air at the bottom end of the air inlet pipe;

the device also comprises a residue separator which is sleeved outside the outer tube, the residue separator comprises a sleeve, a dirt fixing plate and a drilling filtering plate;

the drilling filtering plate is arranged as a circular net-shaped filter plate and is fixedly arranged outside the sleeve through the dirt fixing plate;

and an upper layer of drilling filtering plate and a lower layer of drilling filtering plate are fixedly arranged outside the sleeve.

2. The shallow water three-dimensional multilayer intensive high-density cultivation system according to claim 1, wherein the inner wall of the inner pipe is further provided with a plurality of shower plates, the shower plates are fixedly arranged in an up-and-down layered mode, and the shower plates are arranged in a net-shaped structure.

3. The shallow water stereoscopic multilayer intensive high-density culture system according to claim 1, wherein the inner wall of each layer of shallow water culture tank is provided with black plastic meshes, and the black plastic meshes are used for aquatic crustacean organisms to climb and inhabit.

4. The shallow water three-dimensional multilayer intensive high-density culture system according to claim 3, wherein each layer of shallow water culture tank is provided with crisscrossed net wires at a position with high water surface, and black plastic meshes are hung on the net wires.

5. The shallow water three-dimensional multilayer intensive high-density culture system according to claim 1, wherein an escape-proof net is arranged above each layer of shallow water culture tank, the escape-proof net covers the shallow water culture tank, and the escape-proof net is used for preventing aquatic crustacean from escaping in the culture process;

6. The shallow water three-dimensional multi-layer intensive high-density culture system according to claim 1, wherein the upper section pipeline and the lower section pipeline are connected through a threaded connection or a tooth joint.