CN113994917A - Land-based internal circulation system for freshwater fish culture and water circulation method - Google Patents
Land-based internal circulation system for freshwater fish culture and water circulation method Download PDFInfo
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- CN113994917A CN113994917A CN202111416740.XA CN202111416740A CN113994917A CN 113994917 A CN113994917 A CN 113994917A CN 202111416740 A CN202111416740 A CN 202111416740A CN 113994917 A CN113994917 A CN 113994917A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 121
- 239000013505 freshwater Substances 0.000 title claims abstract description 18
- 241000251468 Actinopterygii Species 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000010865 sewage Substances 0.000 claims abstract description 63
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 40
- 239000001301 oxygen Substances 0.000 claims abstract description 40
- 239000010802 sludge Substances 0.000 claims abstract description 30
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 33
- 238000003756 stirring Methods 0.000 claims description 12
- 238000001556 precipitation Methods 0.000 claims description 10
- 238000009360 aquaculture Methods 0.000 claims description 6
- 244000144974 aquaculture Species 0.000 claims description 6
- 238000004062 sedimentation Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 238000000108 ultra-filtration Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/045—Filters for aquaria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/10—Cleaning bottoms or walls of ponds or receptacles
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
Abstract
The invention discloses a land-based internal circulation system and a water circulation method for freshwater fish culture, and relates to the technical field of river filtration. The invention comprises an oxygen supply mechanism, an air discharge mechanism, a sewage treatment mechanism, a water supply mechanism, a plurality of circular water tanks and an equipment room; the oxygen supply mechanism is used for supplying oxygen to the interiors of the plurality of circular water pools; the air discharge mechanism is used for providing air for the interiors of the plurality of circular water pools; the sewage treatment mechanism is used for discharging sewage at the bottoms of the circular water tanks. According to the invention, through a series of designs and the control of the equipment room, oxygen supply can be realized for the interiors of the circular water tanks, air is discharged for the interiors of the circular water tanks, the oxygen content in the circular water tanks is improved, sewage and sludge can be discharged and filtered, the filtered water is reused, water circulation is formed, the waste of water resources is reduced, the influence of water quality pollution on aquatic products is reduced, and the quality of the aquatic products is improved.
Description
Technical Field
The invention belongs to the technical field of river filtration, and particularly relates to a land-based internal circulation system for freshwater fish culture and a water circulation method.
Background
The aquaculture yield is also increased year by year, but the problems of rapid development of the freshwater aquaculture industry, contradiction between aquaculture planning and relative lag of aquaculture technology and environmental protection pressure are continuously outstanding, the fishery industrialization level is not high, supervision and system are not complete, the controllability and traceability of the quality safety management of the aquatic products are not effectively guaranteed, and the like are highlighted;
the intensification degree of the aquaculture industry is continuously improved, the culture yield is also increased year by year, but the environmental pollution is more and more serious due to the reasons of thin scientific culture concept, inadequate production management, laggard culture technology and the like in the culture process;
non-point source pollution (pesticide and domestic sewage discharge), water quality pollution, environmental pollution and the like are more and more serious; the pollutant emission (residual bait and excrement emission) of the culture per se has great influence on the environment;
the problem of food safety of aquatic products is increasingly aggravated; traditional high-density culture has poor facilities and uncontrollable water, aquatic products are easy to get ill, potential aquatic products are polluted due to indiscriminate and abused medicines after the ill, and the quality of the aquatic products cannot reach the standard.
Disclosure of Invention
The invention aims to provide a land-based internal circulation system and a water circulation method for freshwater fish culture, which aim to solve the existing problems: the problem of food safety of aquatic products is increasingly aggravated; traditional high-density culture has poor facilities and uncontrollable water, aquatic products are easy to get ill, potential aquatic products are polluted due to indiscriminate and abused medicines after the ill, and the quality of the aquatic products cannot reach the standard.
In order to solve the technical problems, the invention is realized by the following technical scheme: a land-based internal circulation system for freshwater fish culture and a water circulation method thereof comprise an oxygen supply mechanism, an air discharge mechanism, a sewage treatment mechanism, a water supply mechanism, a plurality of circular water tanks and an equipment room;
the oxygen supply mechanism is used for supplying oxygen to the interiors of the plurality of circular water pools;
the air discharge mechanism is used for providing air for the interiors of the plurality of circular water pools;
the sewage treatment mechanism is used for discharging sewage at the bottoms of the circular water tanks;
the water supply mechanism is used for supplying liquid inside the circular water pools;
the equipment room is used for controlling the operation of the oxygen supply mechanism, the air discharge mechanism, the sewage treatment mechanism and the water supply mechanism.
Furthermore, the oxygen supply mechanism comprises an oxygen pipe, and the oxygen pipe is connected with the plurality of circular pools through a pipeline;
the oxygen pipe is connected with the equipment room through a pipeline.
Further, the air discharge mechanism comprises an air pipe, and the air pipe is connected with the plurality of circular water pools through a pipeline;
the air pipe is connected with the equipment room through a pipeline.
Furthermore, a transverse drain pipe is arranged on the outer side of the sewage pipe of the sewage discharge mechanism, a vertical drain pipe is arranged at the top of the transverse drain pipe, and a water leakage groove is formed in the top of the vertical drain pipe and used for outflow of sewage in the circular water pool;
the inside in circular pond has still been seted up the rectangle and has been held the mud groove, the outside in circular pond is provided with concrete structure, the inside of concrete structure is provided with biochemical treatment pond, biochemical treatment pond's one end is located the inside that the mud groove was held to the rectangle, biochemical treatment pond's top is provided with the sludge pipe, the one end and the sewage pipe of sludge pipe are connected.
The sewage discharge device further comprises a first connecting pipe, wherein a sewage pipe at one end of the first connecting pipe is connected, the other end of the first connecting pipe is connected with a biochemical treatment tank, three biochemical treatment tanks are arranged in the biochemical treatment tank, and the outlet end of the first connecting pipe is positioned in the biochemical treatment tank close to one end of the first connecting pipe;
a sedimentation mechanism is arranged on one side of the biochemical treatment tank close to one end of the first connecting pipe, the output end of the sedimentation mechanism is connected with the biochemical treatment tank through a pipeline, a driving motor is fixed on a bolt at the top of the biochemical treatment tank, and a vertical stirring rod is fixed at the output end of the driving motor and is used for stirring liquid in the biochemical treatment tank;
the biochemical treatment tank close to one end of the first connecting pipe is connected with the biochemical treatment tank in the middle of the biochemical treatment tank through a first drain pipe;
the biochemical treatment tank in the middle of the biochemical treatment tank is connected with the biochemical treatment tank in the end, far away from the first connecting pipe, of the biochemical treatment tank through an ultrafiltration machine, and is used for filtering water quality between the two biochemical treatment tanks;
the biochemical treatment tank is characterized in that one end, far away from the inside of one end of the first connecting pipe, of the biochemical treatment tank is provided with a transverse water pipe, a micro-filter used for filtering water inside the transverse water pipe is arranged on the outer side of the transverse water pipe, and one end of the transverse water pipe is connected with the equipment room.
Further, the inside of equipment room is provided with the control unit, the control unit is used for controlling the inside velocity of flow of oxygen pipe, air hose, water injection pipe and sewage pipe.
Further, a method for land-based water circulation for freshwater fish culture is suitable for the land-based internal circulation system for freshwater fish culture, and is characterized by comprising the following steps:
s1, due to gravity, liquid in the circular water tank can be enabled to be injected into a sewage pipe through the water leakage groove, the vertical drain pipe and the horizontal drain pipe;
s2, operating a mud pump to enable sludge in the rectangular mud storage groove to be injected into the sewage pipe through the biochemical treatment tank and the sludge pipe, and further enabling the sludge in the circular water tank to be cleaned;
s3, injecting the liquid in the sewage pipe into the first connecting pipe and then into the biochemical treatment tank through the first connecting pipe, so that the mixture of the sewage and the sludge in the sewage pipe is injected into the biochemical treatment tank;
s4, operating a driving motor and a precipitation mechanism to enable liquid in the precipitation mechanism to be injected into the biochemical treatment tank, and operating the driving motor to enable a vertical stirring rod to rotate, so that the liquid in the biochemical treatment tank and the liquid injected into the biochemical treatment tank by the precipitation mechanism are mixed due to the rotation of the vertical stirring rod;
s5, operating the ultrafilter to filter the liquid;
s6, the liquid in the transverse water pipe can be further filtered through the operation of the micro-filter after the transverse water pipe passes through the micro-filter, the liquid filtered by the micro-filter is injected into the equipment room, and the sewage can be used.
The invention has the following beneficial effects:
according to the invention, through a series of designs and the control of the equipment room, oxygen supply can be realized for the interiors of the circular water tanks, air is discharged for the interiors of the circular water tanks, the oxygen content in the circular water tanks is improved, sewage and sludge can be discharged and filtered, the filtered water is reused, water circulation is formed, the waste of water resources is reduced, the influence of water quality pollution on aquatic products is reduced, and the quality of the aquatic products is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention as a whole;
FIG. 2 is a schematic view of a plurality of circular pools in accordance with the present invention;
FIG. 3 is a schematic view of the structure of the sludge pipe and the sludge pump of the present invention;
FIG. 4 is a schematic structural view of a rectangular mud storage tank and a water leakage tank according to the present invention;
FIG. 5 is a sectional view of the structure of the interior of the circular pool of the present invention;
FIG. 6 is a schematic view of the construction of the ultrafilter of the present invention;
FIG. 7 is a sectional view showing the inside structure of the biochemical treatment tank of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. an equipment room; 2. a concrete structure; 3. a sewage pipe; 4. a water injection pipe; 5. an oxygen tube; 6. an air tube; 7. a circular pool; 8. a sludge pipe; 9. a mud pump; 10. a rectangular sludge storage groove; 11. a water leakage groove; 12. a transverse water pipe; 13. a vertical water drainage pipe; 14. a transverse drain pipe; 15. a biochemical treatment tank; 16. a micro-filter; 17. a biochemical treatment tank; 18. a first connecting pipe; 19. a precipitation mechanism; 20. an ultrafilter; 21. a drive motor; 22. a vertical stirring rod; 23. a first drain pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention is a land-based internal circulation system for freshwater fish cultivation, which includes an oxygen supply mechanism, an air discharge mechanism, a sewage treatment mechanism, a water supply mechanism, a plurality of circular water tanks 7, and an equipment room 1;
the oxygen supply mechanism is used for supplying oxygen to the insides of the circular water pools 7;
the oxygen supply mechanism comprises an oxygen pipe 5, and the oxygen pipe 5 is connected with a plurality of circular water pools 7 through a pipeline;
the oxygen pipe 5 is connected with the equipment room 1 through a pipeline, oxygen can be supplied to the inside of the circular water pool 7 through the oxygen pipe 5, and the death of aquatic products caused by oxygen deficiency in the circular water pool 7 is prevented;
an air discharge mechanism for supplying air to the inside of the plurality of circular water pools 7;
the air discharging mechanism comprises an air pipe 6, and the air pipe 6 is connected with a plurality of circular water pools 7 through a pipeline;
the air pipe 6 is connected with the equipment room 1 through a pipeline, air can be provided for the plurality of circular water pools 7 through the air pipe 6, the air is discharged from the liquid inside the circular water pools 7, the inside of each circular water pool 7 rolls, and oxygen inside each circular water pool 7 is increased;
the sewage treatment mechanism is used for discharging sewage at the bottoms of the circular water tanks 7;
the water supply mechanism is used for supplying liquid inside the circular water pools 7;
the equipment room 1 is used for controlling the operation of the oxygen supply mechanism, the air discharge mechanism, the sewage treatment mechanism and the water supply mechanism;
a sewage pipe 3 of the sewage discharge mechanism, wherein a transverse drain pipe 14 is arranged outside the sewage pipe 3, a vertical drain pipe 13 is arranged at the top of the transverse drain pipe 14, and a water leakage groove 11 is arranged at the top of the vertical drain pipe 13 and is used for outflow of sewage in the circular water tank 7;
a rectangular sludge storage groove 10 is formed in the circular water tank 7, the concrete structure 2 is arranged on the outer side of the circular water tank 7, a biochemical treatment tank 15 is arranged in the concrete structure 2, one end of the biochemical treatment tank 15 is located in the rectangular sludge storage groove 10, a sludge pipe 8 is arranged at the top of the biochemical treatment tank 15, and one end of the sludge pipe 8 is connected with the sewage pipe 3;
the sewage discharge device also comprises a first connecting pipe 18, one end of the first connecting pipe 18 is connected with the sewage pipe 3, the other end of the first connecting pipe 18 is connected with a biochemical treatment tank 15, three biochemical treatment tanks 17 are arranged in the biochemical treatment tank 15, and the outlet end of the first connecting pipe 18 is positioned in the biochemical treatment tank 17 close to one end of the first connecting pipe 18;
a sedimentation mechanism 19 is arranged on one side of the biochemical treatment tank 17 close to one end of the first connecting pipe 18, the output end of the sedimentation mechanism 19 is connected with the biochemical treatment tank 17 through a pipeline, a driving motor 21 is fixed on the top bolt of the biochemical treatment tank 17, and a vertical stirring rod 22 is fixed on the output end of the driving motor 21 and is used for stirring liquid in the biochemical treatment tank 17;
the biochemical treatment tank 17 near one end of the first connecting pipe 18 is connected with the biochemical treatment tank 17 in the middle of the biochemical treatment pool 15 through a first drain pipe 23;
the biochemical treatment tank 17 in the middle of the biochemical treatment tank 15 is connected with the biochemical treatment tank 17 in the end of the biochemical treatment tank 15 far away from the first connecting pipe 18 through an ultrafiltration machine 20, and is used for filtering the water quality between the two biochemical treatment tanks 17;
a transverse water pipe 12 is arranged at one end of the biochemical treatment tank 17, which is far away from the interior of one end of the first connecting pipe 18, of the biochemical treatment pool 15, a micro-filter 16 for filtering water in the transverse water pipe 12 is arranged at the outer side of the transverse water pipe 12, and one end of the transverse water pipe 12 is connected with the equipment room 1;
filtered water can be provided for the interior of the circular water tank 7 through the water injection pipe 4, so that the water level of the circular water tank 7 is prevented from being reduced, and aquatic products are prevented from dying;
the sludge in the rectangular sludge storage groove 10 can enter the sewage pipe 3 through the biochemical treatment tank 15 and the sludge pipe 8 by the operation of the sludge pump 9, the sewage can be injected into the sewage pipe 3 by the arrangement of the water leakage groove 11, the vertical drain pipe 13 and the horizontal drain pipe 14, the sewage can be filtered by the arrangement of the three circular water tanks 7 after entering the biochemical treatment tank 15 through the first connecting pipe 18, and the liquid can be further filtered by the arrangement of the micro-filter 16;
here, both the ultrafilter 20 and the microfilter 16 use the interception capability of the porous material to intercept the impurities in the water by a physical interception method, and the difference between the ultrafilter 20 and the microfilter 16 is mainly the difference in filtration accuracy;
the inside of the equipment room 1 is provided with a control unit which is used for controlling the flow velocity inside the oxygen pipe 5, the air pipe 6, the water injection pipe 4 and the sewage pipe 3;
the invention discloses a using method of the water circulation system, which comprises the following steps:
s1, due to gravity, liquid in the circular water tank 7 can be made to flow into the sewage pipe 3 through the water leakage groove 11, the vertical drain pipe 13 and the horizontal drain pipe 14;
s2, operating a mud pump 9 to enable sludge in the rectangular mud storage groove 10 to be injected into the sewage pipe 3 through the biochemical treatment tank 15 and the sludge pipe 8, and further enabling the sludge in the circular water tank 7 to be cleaned;
s3, injecting the liquid in the sewage pipe 3 into the first connecting pipe 18, and then injecting the liquid into the biochemical treatment tank 15 through the first connecting pipe 18, so that the mixture of the sewage and the sludge in the sewage pipe 3 is injected into the biochemical treatment tank 15;
s4, the operation of the driving motor 21 and the precipitation mechanism 19 enables the liquid in the precipitation mechanism 19 to be injected into the biochemical treatment tank 17, the operation of the driving motor 21 enables the vertical stirring rod 22 to rotate, and the rotation of the vertical stirring rod 22 enables the liquid in the biochemical treatment tank 17 and the liquid injected into the biochemical treatment tank 17 by the precipitation mechanism 19 to be mixed;
s4, operating the ultrafilter 20 to filter the liquid;
s5, the transverse water pipe 12 passes through the micro-filter 16, the micro-filter 16 can further filter the liquid in the transverse water pipe 12, the liquid filtered by the micro-filter 16 is injected into the equipment room 1, and the sewage can be used.
Through the control of equipment room 1, can realize the oxygen suppliment to the inside of a plurality of circular ponds 7, to the inside exhaust air of circular pond 7, improve the inside oxygen content in circular pond 7, can discharge sewage and mud and filter, the water after the filtration uses once more, forms hydrologic cycle, reduces the waste of water resource, reduces the pollution of quality of water to the influence of aquatic products, improves the quality of aquatic products.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. A land-based internal circulation system for freshwater fish culture is characterized by comprising an oxygen supply mechanism, an air discharge mechanism, a sewage treatment mechanism, a water supply mechanism, a plurality of circular water tanks (7) and an equipment room (1);
the oxygen supply mechanism is used for supplying oxygen to the interiors of the circular water pools (7);
the air discharge mechanism is used for providing air for the interiors of the plurality of circular water pools (7);
the sewage treatment mechanism is used for discharging sewage at the bottoms of the circular water tanks (7);
the water supply mechanism is used for supplying liquid inside a plurality of circular water pools (7);
the equipment room (1) is used for controlling the operation of the oxygen supply mechanism, the air discharge mechanism, the sewage treatment mechanism and the water supply mechanism.
2. The land-based internal circulation system for freshwater fish culture as claimed in claim 1, wherein the oxygen supply mechanism comprises an oxygen pipe (5), and the oxygen pipe (5) and a plurality of circular pools (7) are connected through a pipeline;
the oxygen pipe (5) is connected with the equipment room (1) through a pipeline.
3. The land-based internal circulation system for freshwater fish culture as claimed in claim 1, wherein the air discharge mechanism comprises an air pipe (6), and the air pipe (6) is connected with a plurality of circular pools (7) through a pipeline;
the air pipe (6) is connected with the equipment room (1) through a pipeline.
4. The land-based internal circulation system for freshwater fish culture as claimed in claim 1, wherein the sewage discharge mechanism comprises a sewage pipe (3), a transverse drain pipe (14) is arranged on the outer side of the sewage pipe (3), a vertical drain pipe (13) is arranged on the top of the transverse drain pipe (14), and a water leakage groove (11) is arranged on the top of the vertical drain pipe (13) and is used for flowing out sewage in the circular pool (7);
the inside in circular pond (7) has still been seted up the rectangle and has been held mud groove (10), the outside in circular pond (7) is provided with concrete structure (2), the inside of concrete structure (2) is provided with biochemical treatment pond (15), the one end in biochemical treatment pond (15) is located the inside that the rectangle holds mud groove (10), the top in biochemical treatment pond (15) is provided with sludge pipe (8), the one end and the sewage pipe (3) of sludge pipe (8) are connected.
5. The land-based internal circulation system for freshwater fish culture as claimed in claim 4, wherein the sewage discharge device further comprises a first connecting pipe (18), one end of the first connecting pipe (18) is connected with the sewage pipe (3), the other end of the first connecting pipe (18) is connected with a biochemical treatment tank (15), three biochemical treatment tanks (17) are arranged in the biochemical treatment tank (15), and the outlet end of the first connecting pipe (18) is positioned in the biochemical treatment tank (17) close to one end of the first connecting pipe (18);
a sedimentation mechanism (19) is arranged on one side of the biochemical treatment tank (17) close to one end of the first connecting pipe (18), the output end of the sedimentation mechanism (19) is connected with the biochemical treatment tank (17) through a pipeline, a driving motor (21) is fixed on the top of the biochemical treatment tank (17) through a bolt, and a vertical stirring rod (22) is fixed on the output end of the driving motor (21) and used for stirring liquid in the biochemical treatment tank (17);
the biochemical treatment tank (17) close to one end of the first connecting pipe (18) is connected with the biochemical treatment tank (17) in the middle of the biochemical treatment pool (15) through a first drain pipe (23);
the biochemical treatment tank (17) in the middle of the biochemical treatment tank (15) is connected with the biochemical treatment tank (17) in one end of the biochemical treatment tank (15) far away from the first connecting pipe (18) through an ultrafiltration machine (20) and is used for filtering water quality between the two biochemical treatment tanks (17);
the biochemical treatment device is characterized in that one end, far away from the biochemical treatment tank (17) inside one end of the first connecting pipe (18), of the biochemical treatment pool (15) is provided with a transverse water pipe (12), a micro-filter (16) used for filtering water inside the transverse water pipe (12) is arranged on the outer side of the transverse water pipe (12), and one end of the transverse water pipe (12) is connected with the equipment room (1).
6. The land-based internal circulation system for freshwater fish aquaculture of claim 1, wherein the inside of the equipment room (1) is provided with a control unit for controlling the flow rate inside the oxygen pipe (5), the air pipe (6), the water injection pipe (4) and the sewage pipe (3).
7. A land-based water circulation method for freshwater fish culture, which is suitable for the land-based internal circulation system for freshwater fish culture of any one of claims 1 and 4-6, and is characterized by comprising the following steps:
s1, sewage in a circular water pool (7) can be injected into a sewage pipe (3) due to gravity;
s2, operating a sludge pump (9) to enable sludge in the rectangular sludge storage tank (10) to be injected into the sewage pipe (3) through the biochemical treatment tank (15) and the sludge pipe (8);
s3, injecting the liquid in the sewage pipe (3) into the first connecting pipe (18), and then injecting the liquid into the biochemical treatment tank (15) through the first connecting pipe (18);
s4, the driving motor (21) and the precipitation mechanism (19) are operated, so that the liquid in the precipitation mechanism (19) is injected into the biochemical treatment tank (17), and the rotation of the vertical stirring rod (22) enables the liquid in the biochemical treatment tank (17) and the liquid injected into the biochemical treatment tank (17) by the precipitation mechanism (19) to be mixed;
s4, the operation of the ultrafiltration machine (20) enables liquid to be filtered;
s5, the transverse water pipe (12) passes through the micro-filter (16), the liquid in the transverse water pipe (12) can be further filtered through the operation of the micro-filter (16), and the liquid filtered by the micro-filter (16) is injected into the equipment room (1).
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| CN202111416740.XA CN113994917A (en) | 2021-11-26 | 2021-11-26 | Land-based internal circulation system for freshwater fish culture and water circulation method |
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| CN202111416740.XA CN113994917A (en) | 2021-11-26 | 2021-11-26 | Land-based internal circulation system for freshwater fish culture and water circulation method |
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| CN (1) | CN113994917A (en) |
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Application publication date: 20220201 |