CN210143590U - Aquatic product recirculating aquaculture system - Google Patents

Abstract

The utility model belongs to aquaculture equips the field, and more specifically relates to an aquatic products recirculating water aquaculture system, including the big-arch shelter, be provided with breed pond, circulating water processing system, sorting pond, blowdown ditch and water delivery system in this big-arch shelter. Breed the pond including breeding the monomer, and breed the monomer quantity and be 1-16, every 2-4 breed the monomer and make up into one and breed the district, water delivery system includes circulating water pump, inlet tube and return water canal, the blowdown ditch sets up in the lower part of inlet tube and return water canal, the inside wall of return water canal and blowdown ditch all coats and has glossy environmental protection coating, and the diapire all has 5-15 slopes, and every is bred the district and sets up one the inlet tube, breed pond, circulating water treatment system and water delivery system and put through each other, circulating water pump's quantity is 3-8. The aquatic product recirculating aquaculture system can conveniently and uniformly supply water to aquaculture monomers, has good water circulation effect, large aquaculture capacity, strong function and high efficiency, and has good economic, social and ecological benefits.

Description

Aquatic product recirculating aquaculture system

Technical Field

The utility model belongs to aquaculture equips the field, and more specifically relates to an aquatic products recirculating water aquaculture system.

Background

The total yield of aquatic products in China is the first in the world since 1990, and reaches 6699.65 ten thousand tons in 2015; meanwhile, China is the only world with the culture yield higher than the fishing yield, 4937.90 ten thousand tons of culture yield in 2015 year accounts for 73.70% of the total yield, and the culture area is about 8465 kilo hectares. Along with the development of aquaculture industry, on one hand, the quality control of the traditional pond culture is difficult in the whole process, and diseases are frequent; on the other hand, the waste of water resources is remarkable and the environmental pollution is serious, which seriously influences the sustainable and healthy development of modern aquaculture industry, and in fact, the problem is also the bottleneck problem which restricts the rapid and efficient development of the aquaculture industry in China at present. Therefore, the method has strong pertinence to the exploration and practice of the culture technology and the culture mode, and has important practical significance and value. The advanced technology and means of circulating industrial aquaculture are fully utilized to create a good ecological environment for cultivating aquatic animals so as not to be restricted by external environment, high-quality and high-efficiency production and ecological protection of cultivation environment are finally realized, and the great improvement of the utilization rate of cultivation resources and the quality safety of cultivation products become an important research direction and a hotspot for sustainable development of domestic and foreign ecological cultivation. Comprehensively analyzing the latest overseas aquaculture mode, the circular factory aquaculture has the advantages of small occupied space, high controllability of aquaculture environment, high efficiency, water conservation, safe product quality, ecological environment protection and the like, and is an important way for getting rid of the traditional extensive management and resource dependence production mode, protecting the environment and realizing sustainable development of aquaculture.

At present, the circulating factory aquaculture system at home and abroad has various forms and target functions, but most of the circulating factory aquaculture systems have the following problems: (1) the culture monomer is small, so that the energy consumption is large, the self-regulation capacity of the water body is weak, the scale benefit is poor, and the culture function requirements of aquatic products of a certain variety and range can only be met; (2) most of the water inlet pipes are only provided with one main pipe, and the water is sent to each branch pipe from the main pipe, and the distribution mode has the defects of insufficient water pressure at the tail end, poor circulation, poor controllability and high maintenance cost; (3) the backwater channel adopts a hidden channel without a ramp, so that the sewage is easy to collect, the water quality and the pollutant condition are difficult to observe, and the maintenance cost is high; (4) and a single or two high-power water pumps pump water, so that the maintenance is inconvenient, and the daily cycle number is also not adjusted according to the water quality condition and the pond storage quantity of the cultured aquatic products, thereby saving energy.

SUMMERY OF THE UTILITY MODEL

In view of the technical problems existing in the background art, it is desirable to provide a recirculating aquaculture system for aquatic products, which has the advantages of strong aquaculture and water quality control functions, uniform water supply, resource saving, convenient maintenance and repair, etc.

In order to realize the purpose, the inventor provides an aquatic product recirculating aquaculture system, and the system includes the big-arch shelter, be provided with in the big-arch shelter and breed pond, circulating water treatment system, sorting pond, blowdown ditch and water delivery system, breed the pond including breeding the monomer, breed the monomeric quantity and be 1-16, every 2-4 breed monomers and make up into a breed district, water delivery system includes circulating water pump, inlet tube and return water canal, the blowdown ditch sets up in the lower part of inlet tube and return water canal, the inside wall of return water canal and blowdown ditch all coats and has smooth environmental protection coating, and the diapire all has 5-15 slopes, every breed district sets up one the inlet tube, breed pond, circulating water treatment system and water delivery system switch on each other, circulating water pump's quantity is 3-8.

Different from the prior art, the technical scheme at least has the following beneficial effects:

the aquatic product recirculating aquaculture system is compact in structure, large in aquaculture capacity, strong in aquaculture function and high in aquaculture efficiency, because every 2-4 aquaculture monomers are provided with one water inlet pipe, water can be uniformly supplied to each aquaculture monomer conveniently, the water circulation effect is good, the regulation and control are easy, and no terminal effect exists, water in the whole recirculating aquaculture system circulates in the aquaculture pond and the recirculating water treatment system, substantially sewage is not discharged, resource-saving sustainable aquaculture is realized, and the system has good economic benefits, social benefits and ecological benefits.

Drawings

FIG. 1 is a schematic top view of a recirculating aquaculture system for aquatic products according to an embodiment;

FIG. 2 is an enlarged schematic view of an internal structure of a cultivation unit of the system for recirculating aquaculture of aquatic products according to an embodiment;

FIG. 3 is a schematic view of a water inlet pipe layout of a water delivery system of a recirculating aquaculture system according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of the layout of an oxygen therapy pipe of a recirculating aquaculture system according to an embodiment of the present invention;

FIG. 5 is a schematic sectional view of a cultivation area of a recirculating aquaculture system for aquatic products according to an embodiment;

fig. 6 is a schematic sectional structure view of a circulating water treatment system of a recirculating aquaculture system according to an embodiment of the present invention.

Description of reference numerals:

1. a culture pond; 101. Cultivating monomers; 2. A circulating water treatment system;

201. a first sedimentation tank; 202. A solid-liquid separator; 203. A second sedimentation tank;

204. a biological purification tank; 205. A sterilizing device; 206. A blow-off pipe;

3. a water delivery system; 301. A water circulating pump; 302. A water inlet pipe;

303. a return channel; 304. An upper water outlet; 305. A lower water outlet;

306. a sewage draining ditch; 401. A sewage draining outlet; 402. A fish discharging port;

403. a water return port; 5. A sorting pool; 601. An oxygen delivery tube;

602. and (4) arranging fish pipes.

Detailed Description

The aquatic product recirculating aquaculture system of the utility model is explained in detail below.

The utility model provides an aquatic products recirculating water aquaculture system, this system includes the big-arch shelter, be provided with in the big-arch shelter and breed pond, circulating water processing system, select separately pond, blowdown ditch and water delivery system, breed the pond including breeding the monomer, breed the free quantity and be 1-16, every 2-4 breed monomer combination into a breed district, water delivery system includes circulating water pump, inlet tube and return water canal, the blowdown ditch sets up in the lower part of inlet tube and return water canal, the inside wall of return water canal and blowdown ditch all coats and has smooth environmental protection coating, and the diapire all has 5-15 slopes, and every breed district sets up one the inlet tube, breed pond, circulating water processing system and water delivery system and put through each other, circulating water pump's quantity is 3-8.

The existing circulating water culture pond or culture system is limited by technology, cost and management, and most of the circulating water culture pond or culture system is a small-scale culture system consisting of small-capacity pond bodies, so that the types of aquatic products capable of being cultured are limited. The utility model provides an above-mentioned aquatic products recirculating aquaculture system as long as economy and site conditions allow, the breed monomer quantity that can set up can be many. However, in view of the treatment capacity and operational efficiency of the circulating water treatment system, it is preferable that the number of the culture monomers is 1-16, wherein every 2-4 culture monomers are combined into one culture area. Every breed monomer and seted up water inlet, return water mouth, drain and row's fish mouth, the inlet tube is connected to the water inlet, and the return water canal is connected to the return water mouth, and drain and row's fish mouth all are connected to the blowdown ditch, control the blowdown ditch function by the steering valve. The breeding single bodies are not communicated with each other, and a water inlet pipe is provided with a branch pipe to connect with the water inlet of each breeding single body to inject water into each breeding single body. The water inlet pipe is used for conveying qualified water treated by the circulating water treatment system to each culture area, and can be but is not limited to PVC, cement and metal water pipes. The top of return water canal and blowdown ditch is open visual, and at ordinary times adds the plastics grid board that the aperture is about 2cm and adds to the upper cover and supplies the people to walk, when needing, can open it and be convenient for observe the condition of return water canal and blowdown ditch normal water and overhaul. Smooth environment-friendly coating is coated on the inner side walls of the water return channel and the sewage discharge channel, and the bottom wall of the water return channel and the sewage discharge channel is provided with an inclination of 5-15 degrees, so that water discharged from the sewage discharge outlets of the breeding monomers is not easy to stay and deposit on the water return channel and the sewage discharge channel even if aquatic excrement, food residues and the like are solid wastes, the sanitation conditions of the water return channel and the sewage discharge channel can be kept, and the operation maintenance cost and the labor cost of a water delivery system are reduced.

The power of the circulating water pump adopted in the current closed circulating water aquaculture system is basically above 15kw, for example, the power of a common circulating water pump is 20kw, so that more than 1-2 high-power water pumps are expected to be used for pumping circulating water. But the risk of doing so may be: the daily circulation frequency of the aquaculture water body can not be accurately adjusted, the energy consumption is wasted, and the normal operation of the closed circulating water aquaculture system is influenced when the water pump is damaged and maintained. Therefore, the utility model discloses in select to use the work of less many circulating water pumps of power, for example adopt but not limited to adopt the power to be the little circulating water pump more than 4 kw. Preferably, the number of the circulating water pumps is 3-8, so that the number of the used water pumps can be flexibly adjusted according to the quality of the water body of the aquaculture system and the different pond storage amounts of the aquaculture products in the system, the daily circulating times of the aquaculture water body can be accurately controlled, the power consumption is saved, and the production cost is reduced.

Further, the arrangement of the circulating water treatment system in the circulating industrial aquaculture system has an important influence on the quality and the treatment capacity of the circulating water. For ensuring the utility model discloses but the circulating water of reclaimed water product recirculating aquaculture system is to aquatic products aquaculture water supply in circulation, the utility model provides a circulating water treatment system is including the first sedimentation tank, solid-liquid separation machine, second sedimentation tank and the biological purification pond that connect gradually, the biological purification pond is including the one-level biological purification pond, second grade biological purification pond and the tertiary biological purification pond that connect gradually, just the capacity of one-level biological purification pond, second grade biological purification pond and tertiary biological purification pond is 200-³. The first sedimentation tank is responsible for preliminarily settling the water in the culture pond conveyed by the return water channel, removing larger particles and suspended substances, the solid-liquid separator further removes insoluble substances with smaller particle size, and the second sedimentation tank is used for settlingThe lake pond further gets rid of colloid and small-particle size suspended substance again, after the water pump promotes, accomplishes biological purification at one-level biological purification pond, second grade biological purification pond and tertiary biological purification pond, and the water quality that needs is bred to the final sterilizing treatment that passes through sterilizing equipment reaches the aquatic products, and each breed monomer of rethread inlet tube input.

Further, the circulating water treatment system further comprises a sterilization device and a drain pipe, wherein the sterilization device is arranged at the rear section of the biological purification tank, and the sterilization device is conventional equipment in the field, such as but not limited to an ultraviolet sterilization device. The three-stage biological purification tank is communicated to each culture area through a water inlet pipe, water is sent to each culture monomer in the culture area through a branch pipe of the water inlet pipe, the three-stage biological purification tank is provided with an upper water outlet and a lower water outlet, the upper water outlet is connected to the near-end culture area through a water inlet pipe, the lower water outlet is connected to the far-end culture area through a water inlet pipe, therefore, the problem that the difference of water yield caused by the pressure difference between different water levels in the three-stage biological purification tank is overlarge can be avoided, and the problems that the near-end water yield is large and the far-end water yield is small, which are possibly caused by the fact that a water outlet is. The blow off pipe set up in the bottom of first sedimentation tank, solid-liquid separation machine, second sedimentation tank and biological purification pond is used for discharging the pollutant that circulating water treatment system collected.

Furthermore, the solid-liquid separator is provided with a separation sieve with a fixed mesh number, and the solid-liquid separator is provided with a separation sieve with a fixed mesh number, wherein the fixed mesh number is 80-200 meshes. Through the separation of the first sedimentation tank and the solid-liquid separator, the quality of the discharged water to be treated is pretreated, the removal rate of larger particle impurities reaches more than 98 percent, the load of subsequent treatment structures is greatly reduced, and the treatment effect of circulating water is improved.

Furthermore, the sorting pond is communicated with the breeding monomers through a sewage discharge ditch, a steering valve is arranged at the joint of the sewage discharge ditch and the sorting pond, and the steering valve is used for controlling the sewage discharge function of the sewage discharge ditch or the fish discharge function. The sewage drainage ditch is used for regularly cleaning and transporting sewage deposited at the bottom of the aquaculture monomer discharged by the sewage drainage pipe or draining fish required for sorting and transporting aquaculture products, so that the inner side wall of the sewage drainage ditch is coated with smooth environment-friendly coating, and the bottom wall of the sewage drainage ditch is inclined by 5-15 degrees, so that the sewage can be discharged smoothly and thoroughly without remaining in the sewage drainage ditch to cause blockage or damage to the aquaculture products. Preferably, the sewage draining ditch also undertakes the task of draining the fishway through the steering control of the steering valve when needing to drain fish, compared with the traditional manual conveying mode, the conveying mode can effectively reduce the biological stress reaction and fish body scraping damage of the fish caused by sorting, the physiological function of the fish can be quickly recovered after sorting, the diseases are reduced, the production efficiency is improved, meanwhile, the conveying efficiency is high, and the labor demand is reduced.

Further, the utility model discloses an electronic daylighting control system adjusts through this system illumination intensity, temperature and water alga concentration in the aquatic products recirculating aquaculture system play good ecological regulation and control function to the quality of water and the aquatic products growth of whole system. Preferably, the greenhouse further comprises a lighting system, the lighting system comprises a transmission shaft, a light sensation detector, a control system, a light-transmitting plate and a light shielding plate, and the transmission shaft, the light sensation detector, the control system and the light shielding plate are electrically connected.

Preferably, transmission shaft, light sense detector, light-passing board and light screen set up in the big-arch shelter top, the light screen sets up in the light-passing board top. More preferably, the light-transmitting plate is one or more transparent plates, the light-shielding plate is a narrow strip-shaped plate made of a light-tight material, and the light-shielding plate and the light-transmitting plate are hinged to the transmission shaft respectively to form a double-layer opening and closing structure.

Further, the floor area of the culture monomer is 100-250m²And the total capacity of the culture pond is 2000-4000m³. The capacity of the culture monomer and the culture pond (the capacity of the biological purification pond is required to be 30 percent of the capacity of the culture pond) greatly exceeds the function of the existing circulating water culture system, the culture capacity of a single culture monomer can ensure that cultured aquatic products are not in a stressed culture environment, so that the system can culture more diversified aquatic products,The cultivation function is strong, the efficiency is higher, and simultaneously, the optimal maintenance, overhaul and operation cost of the structure facilities and equipment of the circulating water treatment system under the treatment capacity is realized.

Furthermore, the aquatic product recirculating aquaculture system also comprises a Roots blower, a nano tube, an aeration device and an oxygen conveying pipe, wherein the oxygen conveying pipe is used for conveying liquid oxygen or oxygen in the air to each aquaculture monomer and the biological purification tank. The two pipelines for conveying the liquid oxygen or the oxygen in the air are shared and are communicated with the pipeline of the aeration equipment at ordinary times, and the liquid oxygen is introduced when the liquid oxygen is needed. When the fish is in the early stage of disease infection, the oxygen content in water is kept above 8mg/L, which is good for recovering the health state of the fish. The fish oxygen therapy pipe delivers liquid oxygen, which provides the following advantages that the aeration oxygenation mode does not have: (1) the amount of oxygen provided for the water body and the aquatic products by aeration and oxygenation is limited, and the oxygen pipe can convey liquid oxygen to supply the required amount of oxygen to the water body and the aquatic product matrix more flexibly; (2) when power is off or the standby power supply is in a maintenance state and can not provide aeration and oxygenation, oxygen required by the whole aquatic product circulating water aquaculture system can be provided; (3) when the disease and insect pests of aquatic products in a certain aquaculture monomer or aquaculture area occur and the resistance of organisms needs to be enhanced, emergency oxygen increasing is performed, and the disease resistance and survival rate of the aquaculture aquatic products can be obviously improved.

Further, for making the utility model provides an aquatic products recirculating aquaculture system has stronger seasonal adaptability and breed phase regulation and control flexibility ratio, aquatic products recirculating aquaculture system still includes electric boiler heating system, electric boiler heating system is used for fish seedling phase breed and keeps warm winter.

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments. It should be understood that the examples are only for illustrating the solution of the present invention, but not for limiting the scope of the present invention.

Referring to fig. 1-6, the present embodiment provides a recirculating aquaculture system for aquatic products (such as Australian dragon spot, sturgeon or eel), comprising a color steel plate greenhouse (in the house)In other embodiments, the greenhouse may also be made of other materials such as hard plastics, which are not labeled in the figure), a culture pond 1, a circulating water treatment system 2, a sorting pond 5, a sewage drain 306, and a water delivery system 3 are disposed in the greenhouse, the culture pond includes 16 culture monomers 101, and each 4 culture monomers form one culture area 10 (in other different embodiments, 2 or 3 culture monomers form one culture area 10). Each breeding monomer is provided with a sewage discharge port 401, a fish discharge port 402 and a water return port 403, and the peripheral edge of the bottom of each breeding monomer inclines towards the center. The water delivery system 3 comprises a water inlet pipe 302 of a circulating water pump 301 and a water return channel 303 (connected with a water return port 403), the sewage discharge channel 306 (connected with a sewage discharge port 401) is arranged at the lower parts of the water inlet pipe 302 and the water return channel 303, the inner side walls of the water return channel 303 and the sewage discharge channel 306 are coated with smooth environment-friendly coatings, and the bottom wall of the water return channel 303 and the bottom wall of the sewage discharge channel 306 are inclined by 5-15 degrees. Even if the water discharged from the sewage discharge outlets of the breeding monomers has solid wastes such as aquatic excrement, food residues and the like, the water is not easy to stay and deposit on the water return channel 303 and the sewage discharge channel 306, so that the sanitary conditions of the water return channel 303 and the sewage discharge channel 306 can be kept, and the operation and maintenance cost and the labor cost of a water delivery system are reduced. The sewage draining ditch 306 plays a role of a fish draining passage when fish draining is needed, so that the inner side wall is coated with the smooth environment-friendly coating and plays an important role in protecting the skin of a fish body and preventing the fish body from being injured in the fish draining process. Each culture area 10 is provided with one water inlet pipe 302, the culture pond 1, the circulating water treatment system 2 and the water delivery system 3 are communicated with each other, and in different specific embodiments, the power of the circulating water pump 301 is more than 4kw, and the number of the circulating water pumps is 4. The circulating water treatment system 2 comprises a first sedimentation tank 201, a solid-liquid separator 202, a second sedimentation tank 203, a biological purification tank 204, a sterilization device 205 and a sewage discharge pipe 206, wherein the biological purification tank 204 comprises a primary biological purification tank (not labeled), a secondary biological purification tank (not labeled) and a tertiary biological purification tank (not labeled) which are sequentially connected, and the capacities of the primary biological purification tank, the secondary biological purification tank and the tertiary biological purification tank are respectively 400m³The water supply capacity of the biological purification tank is kept about 30 percent of the total capacity of the culture tank of the circulating water treatment system. The device is arranged in such a way, and aims to slow down the speed of the circulating water body when the circulating water body flows through the biological evolution pond so as to ensure the biologyThe probiotics in the purifying pond have time to absorb and treat organic matters in the water body, so that the water quality of the aquaculture water body is ensured to be in a good state, and the aquaculture efficiency is greatly improved. The solid-liquid separator 202 is provided with a separation sieve with a fixed mesh number of 80 meshes, and the quality of the discharged water treated by the first sedimentation tank is pretreated, so that the removal rate of larger particle impurities reaches more than 98%. The biological purification tank 204 is communicated with each cultivation unit 101 through a water inlet pipe 302, water is sent into each cultivation unit in the cultivation area through a branch pipe of the water inlet pipe 302 and a switch valve (not labeled), the biological purification tank 204 is provided with an upper water outlet 304 and a lower water outlet 305, the upper water outlet 304 is connected to the near-end cultivation area through the water inlet pipe 302, and the lower water outlet 305 is connected to the far-end cultivation area through the water inlet pipe 302.

The embodiment also makes a special improvement on the existing aquatic product recirculating aquaculture system, an adjustable lighting system (not labeled) is arranged at the top of the greenhouse on which the whole system is supported, the luminosity and the temperature in the aquaculture system are required to be adjusted according to different stages of aquatic product aquaculture, and a transmission shaft, a light-sensitive detector, a light shielding plate, a light transmitting plate and other facilities are arranged at the proper position of the top of the greenhouse. In different embodiments, the transparent plate may be one or more transparent plates distributed at different positions, the light shielding plate is a narrow strip-shaped plate made of an opaque material or an opaque plate having the same size as the transparent plate, and the light shielding plate and the transparent plate are respectively hinged to the transmission shaft to form a double-layer opening and closing structure. The light signals received by the light sensing detector are transmitted to the control system, the control system generates action instructions according to a preset light data program and sends the action instructions to the transmission shaft, and the transmission shaft receives the instructions of the control system, so that the light shielding plate performs rotary motion at different angles along the transmission shaft to adjust the light intensity of light.

The aquatic product recirculating aquaculture system further comprises a Roots blower, nanotubes, aeration equipment and an oxygen conveying pipe 601, wherein the Roots blower, the nanotubes and the aeration equipment are used in a conventional using method, and the oxygen conveying pipe 601 is used for conveying liquid oxygen or oxygen in air to each aquaculture monomer and the biological purification tank.

In a more preferred embodiment, the aquatic product recirculating aquaculture system further comprises an electric boiler heating system (not labeled) for fry rearing and winter heat preservation.

In the aspect of arrangement of structures in a culture area, the culture monomers 101 are separated by paved cement roads and grid plates, and a water inlet pipe, a water return channel, a sewage drainage channel (fish drainage channel) and an oxygen supply pipe (used for supplying liquid oxygen or oxygen in the air) are arranged below the grid plates. The benefits of this are: need not additionally occupy the area of taking up of bigger tracts of land for the laying of pipeline, retrench and optimized whole recirculating aquaculture system's structure to can set up the lane in cement road and grid plate middle, conveniently transport fodder and production goods and materials, whole aquaculture system's overall arrangement is compacter pleasing to the eye, functional unit is clear.

Aquatic products recirculating aquaculture system be worked like this: referring to fig. 1, the near-end cultivation area 10 is composed of 4 cultivation monomers 101 near the biological purification tank, and the far-end cultivation area is composed of 4 cultivation monomers 101 far from the biological purification tank, and aquatic animals with proper density are cultivated in the structures of the cultivation monomers 101 in the cultivation area. The upper water outlet 304 of the three-stage biological purification tank is connected to the near-end cultivation area by the water inlet pipe 302, and the lower water outlet 305 is connected to the far-end cultivation area by the water inlet pipe 302. The valve is opened to make the purified water in the biological purification tank 204 enter the water inlet pipe 302 through the pipeline, the water inlet pipe 302 is connected to the water inlet of the cultivation monomer 101 at each cultivation monomer 101 through the pipeline, and the water flow and the flow rate of the upper and lower water outlets can be controlled through the valve (not marked). In the daily breeding management process, the sewage draining outlet 401 and the water returning outlet 403 are not closed. If in the culture process, the cultured aquatic products in a certain culture area reach the marketing standard and need to be loaded and transported outside or the fishes in the culture area need to be sorted, the control valve of the drain outlet 401 is closed, the fish discharging port 402 of the cultured monomer is opened, and the cultured aquatic products flow into the fish discharging channel (namely the drain channel 306) from the fish discharging port 402 through the fish discharging pipe 602 and enter the sorting pond 5. The lighting system can be adjusted at different time or according to the climate condition in the culture process, the light signals received by the light sensor are transmitted to the control system, the control system generates action instructions according to a preset light data program and transmits the action instructions to the transmission shaft, and the transmission shaft receives the instructions of the control system and drives the light shielding plate to rotate along the transmission shaft by a certain angle to adjust the light and shade degree of light. In the first sedimentation tank 201, larger particle impurities are precipitated and removed, the effluent enters a solid-liquid separator 202, a 80-mesh separation sieve in the solid-liquid separator 202 removes suspended impurity particles with the particle size larger than 0.2mm, and the supernatant enters a second sedimentation tank 203 for further flocculation sedimentation treatment. The effluent enters a biological purification tank 204, is treated by an ultraviolet sterilization device 205, and is pumped according to an upper water outlet-near-end culture area, a lower water outlet-far-end culture area after the water quality test reaches the standard. The thick pollutants discharged by each structure of the circulating water treatment system are periodically pumped out, collected and delivered by a sewage suction pump. Breed in winter or when being in fry breed phase, for making the utility model provides an aquatic products circulation farming systems has stronger heat preservation function, opens the electric boiler heating system of extra outfit and heats and keep warm.

The utility model provides an aquatic products recirculating aquaculture system though compact structure, occupation of land are few, but possess bigger breed capacity than current recirculating aquaculture system, carried out scientific and reasonable's configuration to circulating water treatment system's throughput and breed capacity, combined quality of water, light, temperature, aquatic products situation to have implemented real-time supervision and regulation and control, enable the value maximize of breed efficiency and soil, water resource. Meanwhile, as the circulating water pump, the water inlet pipe, the water return channel and the like are subjected to corresponding energy-saving and environment-friendly treatment, the uncontrollable factors in the original operation process are greatly reduced, and the practicability of the water product circulating aquaculture system in the embodiment is enhanced.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the scope of the present invention.

Claims (10)

1. The utility model provides an aquatic products recirculating aquaculture system, its characterized in that, includes the big-arch shelter, be provided with in the big-arch shelter and breed pond, circulating water treatment system, select pond, blowdown ditch and water delivery system, breed the pond including breeding the monomer, breed the free quantity and be 1-16, every 2-4 breed monomer combination into one and breed the district, water delivery system includes circulating water pump, inlet tube and return water canal, the blowdown ditch sets up in the lower part of inlet tube and return water canal, the inside wall of return water canal and blowdown ditch all coats and has smooth environmental protection coating, and the diapire all has 5-15 slopes, and every breed district sets up one the inlet tube, breed pond, circulating water treatment system and water delivery system and put through each other, circulating water pump's quantity is 3-8.

2. The aquaculture circulating water system of claim 1, wherein the circulating water treatment system comprises a first sedimentation tank, a solid-liquid separator, a second sedimentation tank and a biological purification tank which are connected in sequence, the biological purification tank comprises a primary biological purification tank, a secondary biological purification tank and a tertiary biological purification tank which are connected in sequence, and the capacities of the primary biological purification tank, the secondary biological purification tank and the tertiary biological purification tank are 200-400m³。

3. The aquatic product recirculating aquaculture system of claim 2, further comprising a sterilization device and a drain pipe, wherein the sterilization device is disposed at the rear section of the biological purification tank, the three-stage biological purification tank is communicated with the respective culture areas through a water inlet pipe, water is fed into the respective culture monomers in the culture areas through branch pipes of the water inlet pipe, the three-stage biological purification tank is provided with an upper water outlet and a lower water outlet, the upper water outlet is connected to the near-end culture area through a water inlet pipe, the lower water outlet is connected to the far-end culture area through a water inlet pipe, and the drain pipe is disposed at the bottom of the first sedimentation tank, the solid-liquid separator, the second sedimentation tank and the biological purification tank and used for discharging pollutants collected by the recirculating water treatment system.

4. An aquatic product recirculating aquaculture system according to claim 2, wherein the solid-liquid separator is provided with a separating screen with a fixed mesh number, and the fixed mesh number is 80-200 meshes.

5. The aquaculture circulating water system for aquatic products of claim 1, wherein the sorting pond is communicated with each aquaculture unit through a sewage drain, a steering valve is arranged at the joint of the sewage drain and the sorting pond, and the steering valve is used for controlling the functions of sewage drainage of the sewage drain or fish drainage.

6. The aquaculture system of claim 1, wherein the greenhouse further comprises a lighting system, the lighting system comprises a transmission shaft, a light sensor, a control system, a light-transmitting plate and a light-shielding plate, and the transmission shaft, the light sensor, the control system and the light-shielding plate are electrically connected.

7. An aquatic product recirculating aquaculture system according to claim 6, wherein the transmission shaft, the light sensor, the light-transmitting plate and the light-shielding plate are arranged on the top of the greenhouse, and the light-shielding plate is arranged above the light-transmitting plate.

8. The aquaculture system with circulating water as claimed in claim 1, wherein the floor space of the aquaculture unit is 100-250m²And the capacity of the culture pond is 2000-4000m³。

9. The system for recirculating aquaculture of aquatic products as recited in claim 1, further comprising roots blower, nanotubes, aeration device and oxygen pipes for delivering liquid oxygen or oxygen in the air to each of said aquaculture unit and said biological purification tank.

10. The aquatic product recirculating aquaculture system of claim 1 further comprising an electric boiler heating system for fry rearing and winter insulation.

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