CN109937949B - Water circulation fish culture system - Google Patents
Water circulation fish culture system Download PDFInfo
- Publication number
- CN109937949B CN109937949B CN201910161650.7A CN201910161650A CN109937949B CN 109937949 B CN109937949 B CN 109937949B CN 201910161650 A CN201910161650 A CN 201910161650A CN 109937949 B CN109937949 B CN 109937949B
- Authority
- CN
- China
- Prior art keywords
- water
- fish
- area
- tank
- water distribution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention provides a water circulation fish farming system, and belongs to the technical field of aquaculture. The fish culture system comprises a water tank and a culture area, wherein the culture area comprises an incubation area, a juvenile fish area and a adult fish area, and each subarea comprises at least one small fish tank; the water inlet of the culture area is connected with a water supply pipeline, the water supply pipeline is connected with the water inlet at the top of the small fish tank through a water distribution device, and the water distribution device comprises a straight water pipe and a nested water distribution device; the nested water distribution device comprises a water inlet pipeline, an air conduit and a water distribution disk, wherein the upper end of the water inlet pipeline is connected with a water supply pipeline, the lower end of the water inlet pipeline is connected with the water distribution disk, the water distribution disk is arranged at the bottom of the small fish tank, and the side surface of the water distribution disk is provided with water distribution holes; an air conduit is externally connected to the upper part of the water inlet pipeline, which is positioned at the joint of the water inlet pipeline and the water distribution disk. Can effectively reduce the water consumption through above-mentioned system, reduce environmental pollution to through special water distribution device, can realize the dual effect of water distribution and oxygen suppliment, reduce cost, and set up three breed subregion, can effectively improve fish survival rate.
Description
Technical Field
The invention relates to the technical field of aquaculture, in particular to a water circulation fish culture system.
Background
The key core part of the water circulation fish culture device is how the fish culture water circulates and filters, how the circulating water enters the fish tank again in a water distribution mode, how the water drainage mode and the fish tank are kept clean, the water temperature and illumination are controlled, the automation degree and the manufacturing cost of the culture device are controlled, and the device is a system engineering with multiple subjects of biology, physics, machinery, environmental protection and the like. The fish culture system not only provides a good growth space for fish, but also has a water distribution function and a circulating pollution discharge function which are very important, and how to carry out corresponding fish tank design and water distribution design aiming at different growth periods of fish is also a problem to be solved urgently.
If the water distribution can be controlled, special water distribution control can be performed according to different growth stages of the fishes, the survival rate of the fishes is improved, and a better culture effect is achieved. Most of water distribution systems in most of the existing circulating water systems only consider water jetting at the upper end or water flowing on the side face of a fish tank, the water distribution mode is rigid, the requirement of water making flow cannot be met, the oxygen supply requirement cannot be met, and an oxygen machine needs to be additionally arranged usually. And as the water evaporates, it causes the water level of the entire circulation system to gradually decrease. The water injection mode of the existing system is mainly manual control of a water valve, and accidents caused by forgetting to turn off water often occur. Even if the automatic control is carried out, only a simple control facility is provided, and if only adding a buoy or a liquid level meter is considered, the operation is carried out for a long time, and hidden dangers are difficult to avoid.
And the circulation filtration of the water flow is also very important, if the solid dirt is discharged out of the fishpond in time, and the discharged water flow is circularly treated, so that the water flow can be recycled, the water quality pollution caused by continuous decomposition of the solid dirt can be avoided, the hydraulic load of a water treatment process link can be reduced, and the water consumption, the investment and the power consumption can be obviously reduced. At present, no new technical device with good functions and effects exists. Most of the existing drainage systems only adopt siphon design, but food residues on the floating liquid surface cannot be treated, so that accumulation is caused, the water quality and the attractiveness are influenced, and the operation is inconvenient. The existing drainage filtering systems mostly only adopt direct filtration and aeration heads for aeration, so that the water storage tank is easy to breed organisms. There are also patents which disclose filtration through a purification column using PP cotton and activated carbon packing, but such improvements can increase maintenance costs, increase the resistance of the circulation pump, and cause short circuits if fouled.
Chinese patent document CN206686911U discloses a hucho taimen hatching device, which comprises a parallel groove and a live water tank, wherein a temperature regulator and an aerator are installed on the live water tank; the first side surface of the parallel groove is provided with a water inlet pipe, the water inlet pipe is connected with a water outlet of the running water tank, the second side surface of the parallel groove is also provided with a water discharge pipe, the water discharge pipe is provided with a water discharge valve, a position, lower than the water inlet pipe, on the first side surface is provided with a diversion trench, the parallel groove is divided into three regions through a first mesh grid and a second mesh grid, and the bottom of one region is provided with an incubation groove. The utility model discloses a divide into a plurality of regions with the parallel groove, realized the separation of big fry and fry. However, the designed three-partition structure can only simply partition the fish tank, a targeted culture structure is not designed for fry in each partition, and fish tank design and water distribution design are not performed for small fish in different partitions (different growth stages).
Chinese patent document CN107018942A discloses a circulation type fish tank and a water body purification method of the fish tank, the fish tank comprises a fish culture cavity and a purification cavity, the upper end of the purification cavity is provided with a water inlet tank and an overflow tank, the purification lower end is provided with a concentrated water hopper, the water inlet tank is provided with a water inlet pipe with an outlet opening facing downwards, the fall between the outlet of the water inlet pipe and the upper end of the overflow tank is 1.1-1.2 m, the fall between the outlet of the water inlet pipe and the upper end of the concentrated water hopper is 0.5-0.7 m, the water inlet pipe is disconnected with the side wall of the purification cavity, the concentrated water hopper is internally provided with a concentrated water inlet pipe which is communicated with the water inlet tank through a concentrated water return pipe, the concentrated water return pipe is provided with a concentrated water discharge pump and a three-way valve, the water storage space at the same height in the purification cavity is communicated along the horizontal direction, the overflow tank is higher than the fish culture cavity, the circulating water pipe is provided with a circulating water pump. The invention can save water consumption in fish culture, but the purification mode is complex and the filtering effect is general.
Chinese patent document CN102124992B discloses an industrial circulating water fish-farming system and method, comprising a fish pond, a sedimentation interception pond, a biological moving bed, a net-shaped filter material filtering pond, a regulating pond and a backwater oxygenation pipe. The fishpond is rectangular, water in each unit can form a rotational flow in one direction, and the rotational directions of adjacent units are opposite; the front half part of the sedimentation interception tank is provided with a multi-bucket sewage collection groove and a sewage discharge hollow pipe, and the rear half part is provided with a three-dimensional elastic filler; the biological moving bed is composed of a front group and a rear group which are connected in series, the lower part of a middle partition wall is provided with a plurality of large through hole structures, the middle of each group is provided with a partition plate, a suspended filter material is placed in a cavity, and an aeration perforated pipe is transversely arranged; the lower parts of the mesh filter material filtering tank and the regulating tank are connected in parallel and communicated, a mesh filter material is taken, and a filter screen is covered on the mesh filter material filtering tank; the adjusting tank is used for supplementing water, adjusting pH concentration, heating and arranging an air stripping pipe. The invention is improved in a water distribution mode, but the invention mainly aims at pollution discharge, and the rotational flow water distribution is also used for sewage collection and pollution discharge, and does not contribute to the aspects of water distribution and oxygen supply.
Disclosure of Invention
The invention provides a water circulation fish culture system, which aims to solve the problems that the water consumption is increased, the environmental pollution is serious, the water distribution mode is single, and the requirements of water distribution and oxygen supply cannot be met simultaneously in the existing fish culture system. The system has low cost and convenient use. The specific technical scheme is as follows:
a water circulation fish culture system comprises a water tank and a culture area, wherein the water outlet of the water tank is connected with the water inlet of the culture area,
the culture area comprises an incubation area, a juvenile fish area and a adult fish area, and each subarea comprises at least one small fish tank;
the water inlet of the culture area is connected with a water supply pipeline, the water supply pipeline is connected with an opening at the top of the small fish tank through a water distribution device, and the water distribution device comprises a straight water pipe and a nested water distribution device;
the upper end of the straight-flow water pipe is connected with a water supply pipeline, and the lower end of the straight-flow water pipe extends into the small fish tank;
the nested water distribution device comprises a water inlet pipeline, an air conduit and a water distribution disc, the upper end of the water inlet pipeline is connected with a water supply pipeline, the lower end of the water inlet pipeline is connected with the water distribution disc, the water distribution disc is arranged at the bottom of the small fish tank, and the side surface of the water distribution disc is provided with water distribution holes; an air conduit is externally connected to the upper part of the water inlet pipeline, which is positioned at the joint of the water inlet pipeline and the water distribution disk.
Preferably, the inner diameter of the air conduit is 2.5-3.5mm, and the inner diameter of the air conduit is 1/6-1/5 of the inner diameter of the water inlet pipeline. The size of the water distribution holes is 0.8 x 0.8 cm.
More preferably, the air conduit has an internal diameter of 3 mm.
Preferably, the size of the water distribution plate is 4.5 × 4.5cm, and the water distribution holes are large holes with the size of 0.8 × 0.8 cm.
Preferably, the diameter of the joint of the water inlet pipeline and the air conduit is smaller than the diameter of other parts of the water inlet pipeline.
A first bottom support is arranged at the bottom in the small fish tank of the incubation area, the first bottom support is of a rectangular grid structure and can separate female fish and fertilized eggs, the female fish is positioned above the grid, and the fertilized eggs fall into grid holes; vertical rods are arranged at four corners of the first bottom support, the vertical rods penetrate through the first bottom support and reach the bottom of the fish tank, and the distance between the lower part of the first bottom support and the bottom of the fish tank is 0.5-1 cm.
Preferably, a second bottom support is arranged in the fish tank of the young fish region, the second bottom support is of a cylindrical structure with an opening at the upper part, a clamping joint is arranged on the side wall of the second bottom support, a plurality of clamping grooves are formed in the side wall of the fish tank of the young fish region from top to bottom, and the second bottom support is matched with the clamping grooves through the clamping joint to adjust the water penetration depth of the second bottom support; the second bottom support is densely distributed with small holes with the aperture of 0.2-0.3 mm.
Preferably, the water tank comprises three subareas which respectively correspond to the hatching area, the juvenile fish area and the adult fish area, three sets of heating devices corresponding to the three subareas are arranged at the bottom of the water tank, a subarea water outlet corresponding to the adult fish area in the water tank is connected with an adult fish area water inlet, and a subarea water inlet of the water tank is connected with an adult fish area water return port;
a circle of overflow grooves are formed in the outer portion of the water tank, the bottoms of the overflow grooves are communicated to a sewer, and a water level sensing device is arranged in each overflow groove; the water outlets of the subareas in the water tank corresponding to the hatching area and the juvenile fish area are respectively connected with the water inlets of the hatching area and the juvenile fish area, and the water return ports of the hatching area and the juvenile fish area are communicated with the overflow grooves.
Preferably, the water temperature of the hatching area is required to be 26-30 ℃, and the water temperature of the juvenile fish area and the adult fish area is required to be 23-27 ℃. Superior food
And optionally, the water temperature of the juvenile fish area and the adult fish area is required to be 25 ℃.
A circulating filter system is further arranged in a partition corresponding to the adult fish area in the water tank, the circulating filter system comprises first biochemical filter cotton, second biochemical filter cotton, an adsorption material and a built-in circulating pump, the first biochemical filter cotton is arranged at a water inlet above the partition, the adsorption material is arranged at the bottom of the partition, and the second biochemical filter cotton is arranged on the other side, opposite to the first biochemical filter cotton, above the partition and slightly lower than the first biochemical filter cotton; the built-in circulating pump is arranged at the bottom of the water tank at the lower part of the second biochemical filter cotton and is connected with a water pipeline, the water outlet of the water pipeline is arranged above the second biochemical filter cotton, and the distance between the water outlet of the water pipeline and the second biochemical filter cotton is more than 8cm, preferably 8-10 cm.
Preferably, siphon drainage devices are arranged in all the small fish tanks of the culture area, each siphon drainage device comprises a drainage pipe and a filter head connected to the inlet of the drainage pipe, the inlet of the drainage pipe extends into the small fish tank through the upper part of the small fish tank, and the outlet of the drainage pipe is connected to a water tank below the small fish tank; the filter head is provided with 3 or 4 magnetic protrusions, a first stainless steel gauze is arranged outside the magnetic protrusions, and a stainless steel iron ring embedded with 3 or 4 concave first stainless steel gauzes is arranged on the first stainless steel gauze in a matched manner.
Preferably, overflow ports are formed in the upper parts of all the small fish tanks in the culture area, and second stainless steel gauze screens are arranged on the overflow ports; the aperture of the second stainless steel gauze is 2 mm; the gauze is replaceable.
Preferably, the flowing water circulation fish culture system provided by the invention further comprises a controller, the mechanical liquid level switch and the normally closed electromagnetic valve are connected with the controller, and when the situation that the water level in the overflow tank is higher than the set height is detected, the controller controls the normally closed electromagnetic valve to be powered off, and the water supply pipeline stops supplying water.
Compared with the prior art, the invention has the following beneficial effects:
(1) the water circulation fish culture system designed by the invention comprises three subareas, namely an incubation area, a juvenile fish area and a adult fish area, can control water temperature and water distribution modes according to different growth stages of fishes, meets the requirements of the fishes in each growth stage, can perform special water distribution control according to different growth stages of the fishes, improves the survival rate of the fishes, and has a better culture effect.
(2) The invention adopts a special water distribution design and two water distribution systems which can be switched. The water distribution device comprises a water inlet pipeline, an air conduit and a water distribution disk, wherein the water distribution disk is detachably designed and is connected with a water supply pipeline through a hard water inlet pipeline, and the water distribution disk mainly plays a role in water diversion; the air conduit is externally connected above the joint of the water inlet pipeline and the water distribution disc, when water flows downwards for water distribution, negative pressure is generated when the water flows through the communicating port with air, a large amount of air enters, a large amount of bubbles are sprayed out, and the purpose of supplying oxygen during water supply is achieved. The inner diameter of the air conduit is preferably 2.5-3.5mm, and the inner diameter of the air conduit is 1/6-1/5 of the inner diameter of the water inlet pipeline, which is proved to have better oxygen supply effect. And the side of the water distribution plate is provided with water distribution holes, the aperture of each water distribution hole is 0.8 x 0.8cm, and a large hole is preferably arranged, so that a large number of bubbles can be generated due to the connection of the air conduit, the water distribution plate can play a role in disturbance, the cleaning of a fish tank and the predation of small fish are facilitated, and the fish tank is particularly suitable for the cultivation of young fish and small fish. The nested water distribution device is used for supplying water after half an hour after feeding every day, so that the effects of reducing the suction of excessive food by a siphon and conveniently cleaning the fish tank can be achieved.
(3) The diameter of the connection part of the water inlet pipeline of the nested water distribution device and the air conduit can be designed to be smaller than the diameters of other parts of the water inlet pipeline, so that when water flows through the water inlet pipeline and the air conduit, the pressure in the water inlet pipeline is lower, and more air is enabled to flow into the water inlet pipeline.
(4) According to the invention, the fish tank is designed in a targeted manner according to different requirements of breeding in the hatching area and the young fish area, the bottom of the small fish tank in the hatching area is provided with the first bottom support, the first bottom support is of a rectangular grid structure and can separate female fish and fertilized eggs, the female fish is arranged on the upper part of the grid, the eggs can fall into the bottom of the fish tank through grid holes, and the eggs can be effectively prevented from being eaten by some oothecal fishes; and meanwhile, four vertical rods positioned at corners are further arranged on the bottom support and used for supporting and lifting the bottom support. The inside of the fish tank in the juvenile fish area is provided with a second bottom support, the second bottom support is provided with small holes with the aperture of 0.2-0.3mm, fish excrement can be discharged into the bottom of the fish tank while water flow is ensured to pass through, and the water environment in the second bottom support is kept clean. And the depth of entry can be adjusted through the cooperation of joint and draw-in groove to the second collet, is convenient for trade water to the juvenile fish, improves the survival rate.
(5) Three sets of heating devices are arranged corresponding to the three subareas, so that the water temperature control can be conveniently carried out aiming at different growth stages of the fishes.
(6) According to the invention, the water tank partition corresponding to the adult fish area is provided with the circulating filter system for filtering the fish tank backwater, and the first biochemical filter cotton, the second biochemical filter cotton and the adsorption material are matched to play a good role in filtering, so that the water body can be recycled. Particularly, the water outlet of the water pipeline in the circulating and filtering system is arranged above the second biochemical filter cotton, and the distance between the water outlet and the second biochemical filter cotton is larger than 8cm, so that the circulating and filtering system in the fish tank can perform secondary filtration on water flow by means of gravity, and the water flow can be oxygenated while a better filtering effect is achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of a water circulation fish farming system according to the present invention;
FIG. 2 is a schematic view of the structure of the water supply related equipment provided by the present invention;
FIG. 3 is an enlarged view of the first embodiment at A in FIG. 2;
FIG. 4 is an enlarged structural view of a second embodiment at A in FIG. 2;
FIG. 5 is a schematic structural view of a small fish tank in an incubation area provided by the invention;
FIG. 6 is a schematic view of a small fish tank in a juvenile fish area according to the present invention;
fig. 7 is a schematic view of the internal structure of the water tank corresponding to the adult fish area provided by the invention.
The specific meanings of the symbols in the drawings are as follows:
1: an incubation area; 2: a juvenile fish area; 3: a adult fish area; 4: a small fish tank; 5: a water tank; 6: a water supply pipeline; 7: a straight water pipe; 8: nesting the water distribution device; 9: a water inlet pipeline; 10: an air conduit; 11: a water distribution plate; 12: water distribution holes; 13: a fluorescent lamp; 14: a first base support; 15: a vertical rod; 16: the second bottom support: 17: clamping a connector: 18: a card slot; 19: first biochemical filter cotton; 20: second biochemical filter cotton: 21: adsorbing material; 22: a circulating pump is arranged inside; 23: a water delivery pipeline; 24: a partition plate; 25: a brine shrimp hatching tank; 26: a fish fertilized egg hatching tank.
Detailed Description
The present invention provides a fish farming system by circulating water, which will be described in detail below with reference to the accompanying drawings.
The running water circulation fish culture system provided by the invention is suitable for culture of various fishes, and is particularly suitable for culture of small tropical fishes such as zebra fishes.
As shown in figure 1, the invention provides a water circulation fish culture system, which comprises a water tank 5 and a culture area, wherein a water outlet of the water tank 5 is connected with a water inlet of the culture area. The culture area comprises an incubation area 1, a juvenile fish area 2 and a adult fish area 3, and each subarea comprises at least one small fish tank 4. The water tank 5 comprises three subareas which respectively correspond to the hatching area 1, the juvenile fish area 2 and the adult fish area 3, and three sets of heating devices corresponding to the three subareas are arranged at the bottom of the water tank 5; a water outlet of a subarea corresponding to the adult fish area 3 in the water tank 5 is connected with a water inlet of the adult fish area 3, and a water inlet of the water tank subarea is connected with a water return port of the adult fish area 3; a circle of overflow grooves are formed in the outer portion of the water tank 5, the bottoms of the overflow grooves are communicated to a sewer, and a water level sensing device is arranged in each overflow groove; the water outlets of the subareas corresponding to the hatching area 1 and the young fish area 2 in the water tank are respectively connected with the water inlets of the hatching area 1 and the young fish area 2, and the water return ports of the hatching area 1 and the young fish area 2 are communicated with the overflow tank. A plurality of rows of fluorescent lamps 13 are arranged in the culture area and the water tank 5 and are used for providing illumination for the growth of fishes. The fluorescent lamp 13 is not arranged in the water tank 5 below the adult fish area 3, and the lower part of the fluorescent lamp is designed for circulating water flow corresponding to the water tank, so that illumination is not required.
In the embodiment, the water tank 5 corresponding to the incubation area 1 is further improved, a partition plate 24 is arranged in the water tank, and a brine shrimp incubation groove 25 and a fish germ cell incubation groove 26 are formed in the partition plate and used for incubating brine shrimps as fish food and incubating fish eggs produced in the incubation area 1, so that an additional incubation device is not needed, the equipment cost can be effectively saved, and the culture efficiency is improved. Wherein the fish fertilized egg hatching tank 26 is made of transparent material, preferably glass. Because the water tank 5 with the heat preservation function is used, the juvenile fish area 2 can be similarly designed corresponding to the water tank 5 when needed. The water tank 5 corresponding to the adult fish area 3 needs circulating water flow, and the hatching tank is not arranged.
As shown in the figures 2-3, the water inlet of the culture area is connected with a water supply pipeline 6, the water supply pipeline 6 is connected with the water inlet at the top of the small fish tank 4 through a water distribution device, and the water distribution device comprises a straight water pipe 7 and a nested water distribution device 8; the upper end of the straight water pipe 7 is connected with the water supply pipeline 6, and the lower end thereof extends into the small fish tank 4; the nested water distribution device 8 comprises a water inlet pipeline 9, an air conduit 10 and a water distribution disc 11, the upper end of the water inlet pipeline 9 is connected with the water supply pipeline 6, the lower end of the water inlet pipeline is connected with the water distribution disc 11, the water distribution disc 11 is arranged at the bottom of the small fish tank 4, and the side surface of the water distribution disc 11 is provided with water distribution holes 12; an air conduit 10 is externally connected to the upper part of the water inlet pipeline 9 at the joint with the water distribution disk 11, the inner diameter of the air conduit 10 is 1/6-1/5 of the inner diameter of the water inlet pipeline 9, and the aperture of the water distribution hole 12 is 0.7-0.9 cm. The air duct 10 can provide a better oxygenation effect by using the above inner diameter ratio, and supplies water and supplies oxygen. The air duct 10 can be set to different tube diameters according to requirements to achieve different oxygenation effects. The inner diameter of the air conduit 10 is 0.3mm, and the specific aperture of the water distribution holes 12 is 0.8 x 0.8cm, so that the water distribution effect can be ensured, the disturbance effect on water flow is generated, the water flow movement in the fish tank 4 is promoted, and the bacteria breeding is prevented.
In another embodiment of the present invention, as shown in fig. 4, the diameter of the connection between the water inlet pipe 9 and the air conduit 10 is smaller than the diameter of the other parts of the water inlet pipe 9, so that the pressure of the water flowing through the water inlet pipe 9 is further reduced, which is beneficial to more air entering the water flow and providing more oxygen for the fish tank.
The present invention also provides a targeted design of the fish tank for the different needs of the cultivation in the hatching zone 1 and the juvenile fish zone 2, as shown in fig. 5-6. A first bottom support 14 is arranged at the bottom in the small fish tank 4 of the incubation area 1, the first bottom support 14 is of a rectangular grid structure and can separate female fish and fertilized eggs, the female fish is positioned above the grid, and the fertilized eggs fall into grid holes; vertical rods 15 are arranged at four corners of the first bottom support 14, the vertical rods 15 penetrate through the first bottom support 14 to reach the bottom of the fish tank and are used for supporting the first bottom support, and the distance between the lower part of the first bottom support and the bottom of the fish tank is 0.5-1 cm. Meanwhile, the vertical rod is fixedly connected with the bottom support, so that the bottom support can be conveniently lifted. A second bottom support 16 is arranged in the small fish tank 4 of the young fish area 2, the second bottom support 16 is of a cylindrical structure with an opening at the upper part, a clamping joint 17 is arranged on the side wall of the second bottom support 16, a plurality of clamping grooves 18 are formed in the side wall of the small fish tank 4 of the young fish area 2 from top to bottom, and the second bottom support 16 is matched with the clamping grooves 18 through the clamping joint 17 to realize the adjustment of the water inlet depth of the second bottom support 16; the second bottom support 16 is densely distributed with small holes with the aperture of 0.2-0.3 mm.
As shown in fig. 7, in the present invention, a circulating filtration design is performed on the water tank 5 at the lower part of the adult fish area 3, and a circulating filtration system is arranged in the water tank 5 to ensure that the water flow in the adult fish area 3 can be recycled. The water tank 5 is also provided with a circulating filter system corresponding to the fish formation area 3, the circulating filter system comprises first biochemical filter cotton 19, second biochemical filter cotton 20, an adsorbing material 21 and a built-in circulating pump 22, and the adsorbing material 21 can be activated carbon. The first biochemical filter cotton 19 is arranged at a water inlet above the subareas and used for primarily filtering the backwater of the culture area. The adsorption material 21 is arranged at the bottom of the subarea and used for adsorbing solid impurities in water. The second biochemical filter cotton 20 is arranged on the other side of the upper part of the subarea opposite to the first biochemical filter cotton 19, is slightly lower than the first biochemical filter cotton, and is used for carrying out secondary filtration on water flow. The second biochemical filter cotton 20 is made of a material with smaller pores than the first biochemical filter cotton 19. The built-in circulating pump 22 is arranged at the bottom of the water tank 5 at the lower part of the second biochemical filter cotton 20 and is connected with a water delivery pipeline 23, the water outlet of the water delivery pipeline 23 is arranged above the second biochemical filter cotton 20, and the distance between the water outlet of the water delivery pipeline and the second biochemical filter cotton 20 is 10cm, so that water flow can be filtered under the action of gravity, and certain air is brought into the water flow.
Through setting up the circulating filtration system, 3 aquaculture water in adult fish district can realize cyclic utilization, reduce cost and reduce waste water discharge. The water tanks 5 arranged at the bottoms of the hatching area 1 and the young fish area 2 are mainly used for controlling the temperature of the upper small fish tank 4 without water replenishing and filtering, and the water for fish growth in the hatching area 1 and the young fish area 2 is not supplied from the lower water tank 5 but directly supplied by an external water pipe.
This embodiment has still improved drainage system, adopts siphon drainage device, utilizes the siphon effect to carry out the drainage. Specifically, a siphon drainage device is arranged in all the small fish tanks 4 in the culture area, the siphon drainage device comprises a drainage pipe and a filter head connected to the tail end of the drainage pipe, the inlet of the drainage pipe extends into the small fish tanks 4 through the upper parts of the small fish tanks 4, and the outlets of the drainage pipes are connected to a water tank below the small fish tanks; 3 or 4 magnetic bulges are arranged on the filter head, a first stainless steel gauze is arranged outside the magnetic bulges, and a stainless steel iron ring embedded with the first stainless steel gauze and 3 or 4 concave parts is arranged on the first stainless steel gauze in a matched manner. The amount of water discharged can be adjusted by adjusting the depth of entry of the drain pipe. Through the improvement of the invention, the siphon drainage device is provided with the magnetic bulge, so that the specification of the gauze can be quickly changed as required, and the water in the small fish tank 4 is drained through the siphon drainage device at ordinary times, thereby completely meeting the water inlet and drainage requirements of the small fish tank 4. When the siphon drainage device is sealed, the water level in the small fish tank 4 rises, and at the moment, the water is drained through the overflow port, so that floating objects on the upper layer of the fish tank can be removed.
In addition, the upper parts of all the small fish tanks 4 in the culture area are provided with overflow ports, the overflow ports are provided with second stainless steel gauze screens, and the aperture of each second stainless steel gauze screen is 2 mm. The stainless steel gauze can effectively intercept fish, prevents that it from flowing out along with 4 top overflow water in little fish bowl, therefore needs to adjust the stainless steel gauze size according to fish size, and the used second stainless steel gauze aperture in hatching area 1 and adult fish district 3 can be greater than the used second stainless steel gauze aperture in juvenile fish district 2, mainly all raises adult fish in these two divisions. The size of the small fish tank 4 is 30cm (L) 20cm (W) 30cm (H), and the designed water level in the small fish tank 4 is 5-6 cm lower than the edge of the water tank. Still be equipped with the controller among the system of breeding fish that this embodiment provided, mechanical type liquid level switch and normally closed solenoid valve are connected with the controller, and when detecting that the interior water level of overflow tank is higher than when setting for the height, the outage of controller control normally closed solenoid valve, supply channel stop to supply water. Can effectively improve the breeding convenience and prevent a large amount of water leakage, overflow and water pump empty load operation.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (4)
1. A water circulation fish culture system comprises a water tank and a culture area, wherein the water outlet of the water tank is connected with the water inlet of the culture area,
the culture area comprises an incubation area, a juvenile fish area and a adult fish area, and each subarea comprises at least one small fish tank;
the water inlet of the culture area is connected with a water supply pipeline, the water supply pipeline is connected with an opening at the top of the small fish tank through a water distribution device, and the water distribution device comprises a straight water pipe and a nested water distribution device;
the upper end of the straight-flow water pipe is connected with a water supply pipeline, and the lower end of the straight-flow water pipe extends into the small fish tank;
the nested water distribution device comprises a water inlet pipeline, an air conduit and a water distribution disc, the upper end of the water inlet pipeline is connected with a water supply pipeline, the lower end of the water inlet pipeline is connected with the water distribution disc, the water distribution disc is arranged at the bottom of the small fish tank, and the side surface of the water distribution disc is provided with water distribution holes;
an air conduit is externally connected to the upper part of the water inlet pipeline, which is positioned at the joint of the water inlet pipeline and the water distribution disc;
a first bottom support is arranged at the bottom in the small fish tank of the incubation area, the first bottom support is of a rectangular grid structure and can separate female fish and fertilized eggs, the female fish is positioned above the grid, and the fertilized eggs fall into grid holes; vertical rods are arranged at four corners of the first bottom support, the vertical rods penetrate through the first bottom support and reach the bottom of the fish tank, and the distance between the lower part of the first bottom support and the bottom of the fish tank is 0.5-1 cm;
a second bottom support is arranged in the fish tank of the juvenile fish area, the second bottom support is of a cylindrical structure with an opening at the upper part, a clamping joint is arranged on the side wall of the second bottom support, a plurality of clamping grooves are formed in the side wall of the fish tank of the juvenile fish area from top to bottom, and the second bottom support is matched with the clamping grooves through the clamping joint to realize the adjustment of the water inlet depth of the second bottom support; small holes are densely distributed on the second bottom support, and the aperture is 0.2-0.3 mm;
the water tank comprises three subareas which respectively correspond to an incubation area, a juvenile fish area and a adult fish area, and three sets of heating devices corresponding to the three subareas are arranged at the bottom of the water tank; the water tank is characterized in that a partitioned water outlet corresponding to the adult fish area is connected with an adult fish area water inlet, and a partitioned water inlet of the water tank is connected with an adult fish area water return port;
a circle of overflow grooves are formed in the outer portion of the water tank, the bottoms of the overflow grooves are communicated to a sewer, and a water level sensing device is arranged in each overflow groove; the water outlets of the subareas of the water tank corresponding to the hatching area and the juvenile fish area are respectively connected with the water inlets of the hatching area and the juvenile fish area, and the water return ports of the hatching area and the juvenile fish area are communicated with the overflow grooves;
a circulating filter system is further arranged in a partition corresponding to the adult fish area in the water tank, the circulating filter system comprises first biochemical filter cotton, second biochemical filter cotton, an adsorption material and a built-in circulating pump, the first biochemical filter cotton is arranged at a water inlet above the partition, the adsorption material is arranged at the bottom of the partition, and the second biochemical filter cotton is arranged on the other side, opposite to the first biochemical filter cotton, above the partition and slightly lower than the first biochemical filter cotton; the built-in circulating pump is arranged at the bottom of the water tank at the lower part of the second biochemical filter cotton and is connected with a water delivery pipeline;
the water outlet of the water pipeline is arranged above the second biochemical filter cotton, and the distance between the water outlet of the water pipeline and the second biochemical filter cotton is more than 8 cm;
siphon drainage devices are arranged in all the small fish tanks of the culture area, each siphon drainage device comprises a drainage pipe and a filter head connected to the inlet of the drainage pipe, the inlet of the drainage pipe extends into the small fish tank through the upper part of the small fish tank, and the outlet of the drainage pipe is connected to a water tank below the small fish tank; the filter head is provided with 3 or 4 magnetic protrusions, a first stainless steel gauze is arranged outside the magnetic protrusions, and a stainless steel iron ring embedded with 3 or 4 concave first stainless steel gauzes is arranged on the first stainless steel gauze in a matched manner.
2. The fish farming system of claim 1, wherein the air guide pipe has an inner diameter of 2.5 to 3.5mm, the air guide pipe has an inner diameter of 1/6 to 1/5 of an inner diameter of the water inlet pipe, and the water distribution holes have a size of 0.8 x 0.8 cm.
3. The fish farming system of claim 1 wherein the inlet conduit is connected to the air conduit at a diameter that is less than the diameter of the remainder of the inlet conduit.
4. The fish farming system of claim 1 wherein the upper portion of all the small fish tanks in the farming area are provided with overflow ports, and the overflow ports are provided with second stainless steel screens; the aperture of the second stainless steel gauze is 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910161650.7A CN109937949B (en) | 2019-03-04 | 2019-03-04 | Water circulation fish culture system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910161650.7A CN109937949B (en) | 2019-03-04 | 2019-03-04 | Water circulation fish culture system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109937949A CN109937949A (en) | 2019-06-28 |
| CN109937949B true CN109937949B (en) | 2020-05-22 |
Family
ID=67008253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910161650.7A Active CN109937949B (en) | 2019-03-04 | 2019-03-04 | Water circulation fish culture system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109937949B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110663645B (en) * | 2019-11-21 | 2021-10-08 | 湖南富高农业科技开发有限公司 | Tadpole is bred and uses hatching apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201813726U (en) * | 2010-07-27 | 2011-05-04 | 上海海洋大学 | Pet fish spawning hatcher |
| CN202005200U (en) * | 2011-01-04 | 2011-10-12 | 周洪春 | Aquarium tank with upper ecological filtration and water circulation structure |
| CN203167831U (en) * | 2013-01-18 | 2013-09-04 | 张中直 | Strainer pipe |
| CN203333448U (en) * | 2013-07-11 | 2013-12-11 | 中国人民解放军环境科学研究中心 | Water circulating and purifying device |
| CN205962378U (en) * | 2016-06-07 | 2017-02-22 | 张诗辰 | Aquarium fish farming systems of family |
| CN208016700U (en) * | 2018-03-25 | 2018-10-30 | 沈阳乡遇时光农业发展有限公司 | Two-sided disjunctor greenhouse fish colza suitable for northern area supports system |
-
2019
- 2019-03-04 CN CN201910161650.7A patent/CN109937949B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201813726U (en) * | 2010-07-27 | 2011-05-04 | 上海海洋大学 | Pet fish spawning hatcher |
| CN202005200U (en) * | 2011-01-04 | 2011-10-12 | 周洪春 | Aquarium tank with upper ecological filtration and water circulation structure |
| CN203167831U (en) * | 2013-01-18 | 2013-09-04 | 张中直 | Strainer pipe |
| CN203333448U (en) * | 2013-07-11 | 2013-12-11 | 中国人民解放军环境科学研究中心 | Water circulating and purifying device |
| CN205962378U (en) * | 2016-06-07 | 2017-02-22 | 张诗辰 | Aquarium fish farming systems of family |
| CN208016700U (en) * | 2018-03-25 | 2018-10-30 | 沈阳乡遇时光农业发展有限公司 | Two-sided disjunctor greenhouse fish colza suitable for northern area supports system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109937949A (en) | 2019-06-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102242705B1 (en) | Recirculating aquaculture system use of Biofloc Technology | |
| KR101782736B1 (en) | Recirculating aquaculture system | |
| CN103461263B (en) | Pond differential niche ecological water treatment facility | |
| CN108739617B (en) | Sturgeon batch production recirculating aquaculture water supply system | |
| CN110192538A (en) | A kind of external Penaeus Vannmei circulating water culture system | |
| CN205071923U (en) | Batch production circulating water breeding device | |
| KR101799761B1 (en) | Shellfish conditioning and depuration system with closed recirculation type | |
| CN109329175A (en) | A kind of green low-carbon efficiently industrializes ecologic breeding pond structure | |
| CN106305569A (en) | Self-cleaning internal-circulation temperature-control type culture system | |
| CN206728930U (en) | Recirculated water stereo ecological cultivating system | |
| CN108849688A (en) | Recirculated water stereo ecological cultivating system | |
| CN201008306Y (en) | Water circulating system for vast scale fish jar culture | |
| CN106614228B (en) | Low-frequency decontamination energy-saving fish tank for fragmentization of biochemical cotton | |
| CN206101330U (en) | Intergrowth farming systems of aquaculture water circulating system and aquatic livestock and little algae | |
| CN109937949B (en) | Water circulation fish culture system | |
| CN213127653U (en) | Indoor crayfish high density cultured equipment | |
| CN112154964B (en) | Aquaculture waste water circulation treatment's fish-vegetable intergrowth system | |
| JP6480071B1 (en) | Aquaculture equipment | |
| CN115211397A (en) | Factory fish and vegetable symbiotic production system | |
| CN210076364U (en) | Zebra fish breeds self-purification system | |
| CN211129434U (en) | Farming system for symbiosis of aquatic animals and plants | |
| CN215975387U (en) | General type parent fish is cultivated and uses circulating water treatment system | |
| CN217487316U (en) | Zebra fish farming systems | |
| CN220012347U (en) | Multistage water purification system for cultivation | |
| AU2021107473A4 (en) | Fish culture tank integrated with a novel water recirculating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |