CN219628639U - Aquaculture system - Google Patents

Aquaculture system Download PDF

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Publication number
CN219628639U
CN219628639U CN202321397853.4U CN202321397853U CN219628639U CN 219628639 U CN219628639 U CN 219628639U CN 202321397853 U CN202321397853 U CN 202321397853U CN 219628639 U CN219628639 U CN 219628639U
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water
area
tank body
cavity
pond
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王春
田晓刚
高东东
石娟
马野
苏蓉
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SICHUAN ACADEMY OF ENVIRONMENTAL SCIENCES
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SICHUAN ACADEMY OF ENVIRONMENTAL SCIENCES
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Abstract

The utility model relates to an aquaculture system comprising a purification device, a plurality of cultivation ponds and at least one tail pond; the purifying device comprises an inner tank body, a middle tank body and an outer tank body, wherein the inner tank body, the middle tank body and the outer tank body are sequentially and coaxially arranged from inside to outside, a sedimentation cavity is arranged in the inner tank body, the sedimentation cavity is connected with a water inlet pipe, a clear water cavity is arranged between the inner tank body and the middle tank body, a biological treatment area, an aeration area, an ecological purifying area and a water outlet area are arranged in a space between the middle tank body and the outer tank body, the sedimentation cavity, the clear water cavity, the biological treatment area, the aeration area, the ecological purifying area and the water outlet area are sequentially communicated, an aeration mechanism is arranged in the aeration area, and plants are planted in the ecological purifying area; each cultivation pond is connected with the tail pond through a draft tube, the tail pond is connected with the water inlet tube, and the water outlet area is connected with each cultivation pond through a movable water tube. The utility model can realize the recycling of the water for cultivation, and the tail water treatment process is ecological, environment-friendly and effective, and does not generate new pollution components.

Description

Aquaculture system
Technical Field
The utility model belongs to the technical field of aquaculture, and particularly relates to an aquaculture system.
Background
In the aquaculture process, dissolved oxygen in water is continuously consumed, and the content of nitrogen and phosphorus pollution components in water is gradually increased due to the influence of bait residues, excrement and other pollutants, so that the water quality is gradually deteriorated, and therefore, the aquaculture water needs to be replaced or purified, and at present, the traditional purification mode is to directly put medicines such as sterilizing agents, antibiotics and the like into the water, so that the quality of the aquatic products is influenced. The water for cultivation can also be replaced, but the tail water for cultivation contains residual baits, metabolic excreta and the like, and if the tail water is directly discharged, the water environment of the surrounding surface water can be affected to a certain extent, and the pollution load of adjacent rivers is increased. With the downward infiltration of pollutants, groundwater pollution is indirectly caused, direct harm is generated to the bodies of people, and the comfort of living environment is seriously affected. The deterioration of water quality also brings about other negative effects, firstly, malodorous gas is generated under anaerobic conditions, which affects the daily life of residents. Second, the self-cleaning ability of the water body is weakened gradually, the aquatic organisms are reduced gradually, the fishes and shrimps cannot survive, or toxic substances accumulate in the fishes and shrimps so as to influence the life quality of residents. The problem of direct drainage of tail water cannot be solved, so that the pollution of surface water and underground water in an area and the deterioration of ecological environment are caused, the life and production of people are directly influenced, and the ecological environment is influenced.
CN105165665a discloses an aquaculture method and an aquaculture system, wherein a filter is used for filtering aquaculture water, and an aerator is used for aerating, but the removal effect of organic matters is not ideal.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an ecological and environment-friendly aquaculture system, which can recycle aquaculture water, reduce water consumption and save aquaculture cost.
In order to solve the problems, the utility model adopts the following technical scheme: an aquaculture system comprising a purification device, a plurality of culture ponds and at least one tail pond;
the purifying device comprises a circular inner tank body, a circular middle tank body and a circular outer tank body, wherein the inner tank body, the middle tank body and the outer tank body are sequentially and coaxially arranged from inside to outside, a sedimentation cavity is arranged in the inner tank body and is connected with a water inlet pipe, a clear water cavity is arranged between the inner tank body and the middle tank body, a biological treatment area, an aeration area, an ecological purification area and a water outlet area are arranged in the space between the middle tank body and the outer tank body, the sedimentation cavity, the clear water cavity, the biological treatment area, the aeration area, the ecological purification area and the water outlet area are sequentially communicated, an aeration mechanism is arranged in the aeration area, and plants are planted in the ecological purification area;
each cultivation pond is connected with a tail pond through a draft tube, the tail pond is connected with a water inlet tube, and the water outlet area is connected with each cultivation pond through a movable water tube.
Further, a vertical guide pipe is arranged in the center of the sedimentation cavity, the inner diameter of the lower end of the guide pipe is larger than that of the upper end of the guide pipe, a conical reflecting plate is arranged at the lower port of the guide pipe, the vertex of the reflecting plate faces upwards, and an outlet of the guide pipe is arranged on the side wall above the reflecting plate; the water inlet pipe stretches into the upper end of the flow guide pipe.
Further, the bottom wall of the sedimentation cavity is obliquely arranged, and a mud discharging pipe is arranged at the lower end of the bottom wall of the sedimentation cavity.
Further, the biological treatment area, the aeration area and the ecological purification area are separated by a filtering dam in sequence.
Further, the filter dam comprises a fixed filter material layer and detachable filter material layers arranged on two sides of the fixed filter material layer, wherein the detachable filter material layers comprise a plurality of filter material modules, and the filter material modules are detachably connected with the fixed filter material layers.
Further, an overhaul pavement is arranged above the filter material module.
Further, biological fillers are suspended in the biological treatment area.
Further, a planting floating plate is arranged in the ecological purification area, and plants are planted on the planting floating plate.
Further, the top of the sedimentation cavity is communicated with the clean water cavity through a first overflow weir, and the top of the clean water cavity is communicated with the biological treatment area through a second overflow weir.
Further, the number of the purification devices is multiple, each purification device is connected with the tail water pond through a water inlet pipe, and each purification device is connected with the cultivation pond through a water pipe.
The beneficial effects of the utility model are as follows: 1. the water in each cultivation pond is quantitatively conveyed to the tail water pond, the tail water in the tail water pond is quantitatively conveyed to the sedimentation cavity, solid impurities in the sewage are precipitated to the bottom of the sedimentation cavity, and the solid impurities can be regularly discharged by the sludge discharge mechanism. The clear water on the upper layer of the sedimentation cavity flows into the clear water cavity and then flows into the biological treatment area, and microorganisms in the biological treatment area can remove 30% -50% of N, P and other organic matters in the water. The water in the biological treatment area enters an aeration area, and an aeration mechanism in the aeration area is used for aerating the water to improve the dissolved oxygen and further remove suspended matters. The water in the aeration zone enters an ecological purification zone, and the plants in the ecological purification zone are utilized to further absorb and decompose N, P and other nutrient components in the water. The water in the ecological purification area flows to the water outlet area, and the water in the water outlet area can enter the culture pond again through the running water pipe, so that the recycling is realized. The utility model adopts various processes, can effectively remove organic matters, solid impurities, suspended matters and scum in the sewage, improves the dissolved oxygen amount, ensures the treatment effect, does not need to add bactericides, antibiotics and other medicaments, does not generate new pollutants, and is ecological and environment-friendly in the whole treatment process.
2. The purification device is of a multi-layer circular structure, each area is high in integration level, compact in structure, small in occupied area and convenient to maintain and operate.
Drawings
FIG. 1 is a schematic top view of the overall present utility model;
FIG. 2 is a schematic top view of the inner, intermediate and outer tanks;
FIG. 3 is a schematic perspective view of a purification apparatus;
FIG. 4 is a schematic cross-sectional view of an inner cell body;
FIG. 5 is a schematic cross-sectional view of a biological treatment zone;
FIG. 6 is a schematic cross-sectional view of an ecological decontamination area;
FIG. 7 is a schematic diagram of the joint use of multiple devices.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
The aquaculture system of the present utility model, as shown in fig. 1-6, includes a purification device, a plurality of culture ponds 100, and at least one tail pond 110.
The purification device is used for continuously purifying the tail water so as to remove solid impurities, nitrogen, phosphorus and other pollution components in the water, and meanwhile, the oxygen content in the water is increased, so that the tail water reaches the reuse standard. Specifically, purifier includes circular shape internal pool body 1, circular shape middle cell body 2 and circular shape outer cell body 3, internal pool body 1, middle cell body 2 and outer cell body 3 are from interior coaxial setting in proper order outward, be provided with sedimentation chamber 4 in the internal pool body 1, sedimentation chamber 4 is connected with inlet tube 5, be provided with clear water chamber 6 between internal pool body 1 and the middle cell body 2, space between middle cell body 2 and the outer cell body 3 is provided with biological treatment district 7, aeration zone 8, ecological purification district 9 and play water zone 10, sedimentation chamber 4, clear water chamber 6, biological treatment district 7, aeration zone 8, ecological purification district 9 and play water zone 10 communicate in proper order, be provided with aeration mechanism 11 in the aeration zone 8, aeration mechanism 11 is a plurality of evenly distributed's aeration dish in the aeration zone 8 bottom, the aeration dish is connected with the aeration fan. Plants 12 are planted in the ecological purification area 9.
Each cultivation pond 100 is connected with a tail water pond 110 through a tail water pipe 120, the tail water pond 110 is connected with a water inlet pipe 5, the water outlet area 10 is connected with each cultivation pond 100 through a movable water pipe 130, and a circulating pump can be arranged on the movable water pipe 130 to pump water in the water outlet area 10 to the cultivation pond 100.
The plurality of cultivation ponds 100 are used for aquaculture, the tail pond 110 is used for storing tail water extracted from the cultivation ponds 100, plays a role of homogenization, and simultaneously facilitates uniform delivery of water to the purification device according to a certain flow rate. In the aquaculture process, water in the cultivation pond 100 is quantitatively conveyed to the tail water pond 110 for storage, the water in the tail water pond 110 is conveyed to the purifying device through the water inlet pipe 5, and after being purified by the purifying device, the water is conveyed to each cultivation pond 100 again, so that the recycling of the cultivation water is realized. With the loss of water for cultivation, new water must be periodically replenished into the cultivation pond 100.
The inner tank body 1, the middle tank body 2 and the outer tank body 3 can be made of metal materials, such as stainless steel or carbon steel, and are welded on the same bottom plate to form a whole, so that the device can be flexibly installed. When the temperature of the external environment is low, a heat insulation material can be arranged on the outer wall of the outer tank body 3.
The inner cavity of the inner tank body 1 is a sedimentation cavity 4, and solid impurities in the sewage can be removed in a sedimentation mode. The water inlet pipe 5 is used for conveying the breeding tail water to the sedimentation cavity 4. The cavity between the inner tank body 1 and the middle tank body 2 is a clear water cavity 6, after tail water is settled in the settling cavity 4, clear water on the upper layer flows into the clear water cavity 6, the clear water cavity 6 plays a role in secondary settling, the settling time is prolonged, and the removal rate of solid impurities is improved.
An annular cavity is arranged between the middle tank body 2 and the outer tank body 3, the cavity is divided into a fan-shaped biological treatment area 7, an aeration area 8, an ecological purification area 9 and a water outlet area 10, wherein the biological treatment area 7, the aeration area 8 and the ecological purification area 9 are larger, and the water outlet area 10 is smaller. Biological filler is arranged in the biological treatment area 7, so that microorganisms can grow and reproduce, and the microorganisms are utilized to remove the pollution components such as nitrogen, phosphorus and the like in the water. The aeration zone 8 is used for aerating water to increase oxygen content of the water, so that plants 12 in the ecological purification zone 9 can grow normally, root rot of the plants 12 is prevented, and the dissolved oxygen content in the water can reach the emission standard. By planting the plants 12 in the ecological purification area 9, the root systems of the plants 12 can absorb the nutrient components such as nitrogen and phosphorus in the water, so that the concentration of nitrogen and phosphorus can be further reduced, and the water quality can be improved. The ecological treatment cost is lower, the operation and maintenance are convenient, no new pollution component is generated, and the ecological environment is protected.
The water in the tail pond 110 can be directly introduced into the sedimentation cavity 4 through the water inlet pipe 5, but the impact of water flow can cause the sludge at the bottom of the sedimentation cavity 45 to enter the water again, so that a vertical guide pipe 13 is arranged in the center of the sedimentation cavity 4, the inner diameter of the lower end of the guide pipe 13 is larger than that of the upper end, a conical reflecting plate 21 is arranged at the lower port of the guide pipe 13, the vertex of the reflecting plate 21 faces upwards, and the outlet of the guide pipe 13 is arranged on the side wall above the reflecting plate 21; the water inlet pipe 5 extends into the upper end of the guide pipe 13. The baffle 21 blocks the lower port of the flow guide pipe 13, water flows to the baffle 21 from top to bottom along the flow guide pipe 13, flows towards the periphery along the baffle 21 after being blocked by the baffle 21, finally enters the sedimentation cavity 4 from the side wall of the flow guide pipe 13, and when water is fed, the sludge at the bottom of the sedimentation cavity 4 is disturbed less, so that the sludge is prevented from entering the water again, and solid impurities in the water are fully sedimented to the bottom of the sedimentation cavity 4. In addition, the side wall of the lower part of the inner tank body 1 is obliquely arranged, so that the space at the bottom of the sedimentation cavity 4 is smaller, and the aggregation of sludge is facilitated. The purification device can be arranged at a position lower than the tail water pond 110, so that water in the tail water pond 110 can naturally flow into the sedimentation cavity 4, and a water pump can be arranged on the water inlet pipe 5 to serve as water conveying power.
In order to collect the sludge at the bottom of the sedimentation chamber 4 in a concentrated manner, the bottom wall of the sedimentation chamber 4 is arranged in an inclined manner, the inclination angle is about 5 degrees, and the lower end of the bottom wall of the sedimentation chamber 4 is provided with a sludge discharge pipe 14. The deposited sludge slides downwards along the bottom wall of the deposition chamber 4 and then is gathered at the lower end of the bottom wall, and when the sludge is discharged by the sludge discharge pipe 14, most of the sludge can be quickly sucked into the sludge discharge pipe 14, so that the sludge discharge efficiency is improved. A sludge pump is provided on the sludge discharge pipe 14 for supplying power to convey sludge to a designated location.
The biological treatment area 7, the aeration area 8 and the ecological purification area 9 are separated by a filter dam 15 in sequence, and the ecological purification area 9 and the water outlet area 10 and the biological treatment area 7 are separated by a partition plate. The filtering dam 15 has the filtering function, and can intercept suspended matters and floating matters in water, so that the treatment effect is improved.
The conventional filtering dam 15 is generally of a three-layer structure, i.e., two porous brick masonry layers and a filtering material layer, wherein the porous brick masonry layers are built into a wall structure by porous bricks, and the filtering material layer is filled between the two porous brick masonry layers. Along with the use of the system, the impurity on the water inlet side of the filter material layer is gradually increased, so that the filter material layer is gradually blocked, meanwhile, the water outlet side of the filter material layer is directly contacted with water, and more impurities are easily adhered, so that the filter material layer needs to be cleaned at intervals.
In order to be convenient for clear up the filter material that filter dam 15 business turn over water side easily blocks up, filter dam 15 includes fixed filter material layer 16 and sets up the detachable filter material layer in fixed filter material layer 16 both sides, and detachable filter material layer includes a plurality of filter material modules 17, and filter material module 17 can dismantle with fixed filter material layer 16 and be connected. The fixed filter layer 16 can be made of volcanic rock particles, and two sides of the fixed filter layer are fixed by steel wire meshes or net plates. Because the water inlet side and the water outlet side of the fixed filter material layer 16 are both provided with the detachable filter material layers consisting of the plurality of filter material modules 17, the detachable filter material layers are directly contacted with water, impurities can firstly enter the detachable filter material layers, and the impurities remained in the fixed filter material layers 16 are less, so that the filter material modules 17 can be detached when cleaning, the filter material modules 17 are flushed by adopting a high-pressure water gun, the filter material modules 17 are installed in place again after the flushing, and the fixed filter material layers 16 can not be cleaned for a long time. The later maintenance is more convenient.
In order to facilitate the overhaul of the equipment in the biological treatment area 7, the aeration area 8 and the ecological purification area 9, an overhaul pavement 18 is arranged above the filter material module 17. The length direction of the overhaul path 18 is consistent with the radial direction of the outer tank body 3, and the overhaul path extends from the outer tank body 3 to the middle tank body 2, so that an overhaul worker can walk on the overhaul path 18 to reach a proper overhaul position during overhaul. In addition, the filter module 17 may be attached to or detached from the inspection walk 18. A service walkway 18 may also be provided between the biological treatment zone 7 and the water outlet zone 10.
Biological packing is suspended in the biological treatment area 7. The biological filler can be a brush type biological film, also can be a braid type filler, a porous carbon fiber filler and the like, and the porous filler has the best film hanging effect through engineering practice, wherein the filler is about 75%. The retention time of the culture tail water in the biological treatment zone 7 should be not less than 3 hours. The biological treatment area 7 can remove 30% -50% of N, P and other organic matters. The cultivation tail water has a certain oxygen content, so the biological treatment area 7 is sequentially divided into an aerobic microorganism treatment area, a facultative microorganism treatment area and an anaerobic microorganism treatment area in the water flowing direction, the aerobic microorganism, the facultative microorganism and the anaerobic microorganism grow and reproduce, the oxygen content is gradually reduced, and the concentration of nitrogen and phosphorus in the water is gradually reduced.
Emergent aquatic plants, floating plants, submerged plants and the like can be planted in the ecological purification area 9, a planting floating plate 19 can be arranged in the ecological purification area 9, the planting floating plate 19 can be an existing foam plate and the like, can float on the water surface, and the plants 12 are planted on the planting floating plate 19. The plant 12 can be Lythrum, chinese cabbage, etc., and can fully utilize root system of the plant 12 to purify sewage, so that nitrogen and phosphorus in water can be partially removed or utilized through adsorption, microbial decomposition, absorption, etc.
The sedimentation cavity 4 is communicated with the clear water cavity 6 through a pipeline, the clear water cavity 6 is communicated with the biological treatment area 7 through a pipeline, preferably, the top of the sedimentation cavity 4 is communicated with the clear water cavity 6 through a first overflow weir 20, and the top of the clear water cavity 6 is communicated with the biological treatment area 7 through a second overflow weir, so that the arrangement quantity of the pipeline is reduced, and the later maintenance is facilitated.
When the cultivation scale is large and the tail water treatment capacity is large, a plurality of purifying devices can be installed at the same time, as shown in fig. 7, and each purifying device is connected with the tail pond 110 through the water inlet pipe 5, and each purifying device is connected with the cultivation pond 100 through the running water pipe 130.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. An aquaculture system, characterized by: comprises a purifying device, a plurality of cultivation ponds (100) and at least one tail pond (110);
the purifying device comprises a circular inner tank body (1), a circular middle tank body (2) and a circular outer tank body (3), wherein the inner tank body (1), the middle tank body (2) and the outer tank body (3) are sequentially and coaxially arranged from inside to outside, a sedimentation cavity (4) is arranged in the inner tank body (1), the sedimentation cavity (4) is connected with a water inlet pipe (5), a clean water cavity (6) is arranged between the inner tank body (1) and the middle tank body (2), a biological treatment area (7), an aeration area (8), an ecological purifying area (9) and a water outlet area (10) are arranged in the space between the middle tank body (2) and the outer tank body (3), the sedimentation cavity (4), the clean water cavity (6), the biological treatment area (7), the aeration area (8), the ecological purifying area (9) and the water outlet area (10) are sequentially communicated, an aeration mechanism (11) is arranged in the area (8), and plants (12) are planted in the ecological purifying area (9);
each cultivation pond (100) is connected with a tail water pond (110) through a draft tube (120), the tail water pond (110) is connected with a water inlet tube (5), and the water outlet area (10) is connected with each cultivation pond (100) through a living water tube (130).
2. An aquaculture system according to claim 1, wherein: the center of the sedimentation cavity (4) is provided with a vertical guide pipe (13), the inner diameter of the lower end of the guide pipe (13) is larger than that of the upper end, the lower port of the guide pipe (13) is provided with a conical reflecting plate (21), the vertex of the reflecting plate (21) faces upwards, and the outlet of the guide pipe (13) is arranged on the side wall above the reflecting plate (21); the water inlet pipe (5) stretches into the upper end of the flow guide pipe (13).
3. An aquaculture system according to claim 2, wherein: the bottom wall of the sedimentation cavity (4) is obliquely arranged, and the lower end of the bottom wall of the sedimentation cavity (4) is provided with a mud discharging pipe (14).
4. An aquaculture system according to claim 1, wherein: the biological treatment area (7), the aeration area (8) and the ecological purification area (9) are separated by a filtering dam (15) in sequence.
5. The aquaculture system of claim 4, wherein: the filter dam (15) comprises a fixed filter material layer (16) and detachable filter material layers arranged on two sides of the fixed filter material layer (16), wherein the detachable filter material layers comprise a plurality of filter material modules (17), and the filter material modules (17) are detachably connected with the fixed filter material layer (16).
6. An aquaculture system according to claim 5, wherein: an overhaul pavement (18) is arranged above the filter material module (17).
7. An aquaculture system according to claim 1, wherein: biological filler is suspended in the biological treatment area (7).
8. An aquaculture system according to claim 1, wherein: a planting floating plate (19) is arranged in the ecological purification area (9), and plants (12) are planted on the planting floating plate (19).
9. An aquaculture system according to claim 1, wherein: the top of the sedimentation cavity (4) is communicated with the clean water cavity (6) through a first overflow weir (20), and the top of the clean water cavity (6) is communicated with the biological treatment area (7) through a second overflow weir.
10. An aquaculture system according to claim 1, wherein: the number of the purification devices is multiple, each purification device is connected with the tail water pond (110) through the water inlet pipe (5), and each purification device is connected with the cultivation pond (100) through the water pipe (130).
CN202321397853.4U 2023-06-02 2023-06-02 Aquaculture system Active CN219628639U (en)

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Application Number Priority Date Filing Date Title
CN202321397853.4U CN219628639U (en) 2023-06-02 2023-06-02 Aquaculture system

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Application Number Priority Date Filing Date Title
CN202321397853.4U CN219628639U (en) 2023-06-02 2023-06-02 Aquaculture system

Publications (1)

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CN219628639U true CN219628639U (en) 2023-09-05

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CN202321397853.4U Active CN219628639U (en) 2023-06-02 2023-06-02 Aquaculture system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117882673A (en) * 2024-03-15 2024-04-16 江苏龙腾工程设计股份有限公司 Ecological farming systems of three-dimensional combination of wisdom photovoltaic fishery

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117882673A (en) * 2024-03-15 2024-04-16 江苏龙腾工程设计股份有限公司 Ecological farming systems of three-dimensional combination of wisdom photovoltaic fishery
CN117882673B (en) * 2024-03-15 2024-05-24 江苏龙腾工程设计股份有限公司 Ecological farming systems of three-dimensional combination of wisdom photovoltaic fishery

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