CN108323461B - High-yield seedling raising system - Google Patents
High-yield seedling raising system Download PDFInfo
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- CN108323461B CN108323461B CN201810435321.2A CN201810435321A CN108323461B CN 108323461 B CN108323461 B CN 108323461B CN 201810435321 A CN201810435321 A CN 201810435321A CN 108323461 B CN108323461 B CN 108323461B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 336
- 230000012447 hatching Effects 0.000 claims abstract description 93
- 230000016087 ovulation Effects 0.000 claims abstract description 56
- 241000251468 Actinopterygii Species 0.000 claims abstract description 45
- 235000013601 eggs Nutrition 0.000 claims abstract description 34
- 230000007704 transition Effects 0.000 claims abstract description 25
- 239000008213 purified water Substances 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 230000003068 static effect Effects 0.000 claims description 13
- 230000000903 blocking effect Effects 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 239000008239 natural water Substances 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 241000252234 Hypophthalmichthys nobilis Species 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 2
- 241000404975 Synchiropus splendidus Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
- A01K61/17—Hatching, e.g. incubators
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; 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
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
A high-yield seedling raising system is characterized by comprising: a water source (1) which can provide pressurized water for the subsequent spawning pond (2) and hatching pond (3); the bottom of each spawning pond (2) is of a conical structure, the upper part of each spawning pond (2) is connected with a water enclosing structure, the conical bottom of each spawning pond (2) is provided with an ovulation port (201), the ovulation port (201) is connected with a hatching pipe (202), and the outlet end of the ovulation pipe (202) is positioned in a transition pond (203); a circle of spawning pond water inlet nozzles (204) are arranged on the conical surface of the spawning pond (2), the spawning pond water inlet nozzles (204) are communicated with the water source (1), and water flow of the spawning pond water inlet nozzles (204) is sprayed to the joint part of the enclosing structure and the conical surface along the conical surface; a plurality of hatching ponds (3), a circular island (301) which enables fish eggs and fish fries to circulate in a unidirectional way is arranged in the middle of the hatching pond, and egg-containing water discharged from the spawning pond (2) is sent into one or a plurality of hatching ponds (3) through an ovulation pipe (202); a water inlet nozzle (302) of the hatching pond is arranged in the bottom of the hatching pond (3). The invention has high yield and good efficiency.
Description
Technical Field
The invention relates to a seedling raising technology, in particular to a device suitable for raising the seedlings of domestic fishes in a large batch, and specifically relates to a high-yield seedling raising system.
Background
The traditional method for raising the four-large-size domestic fish seedlings comprises the steps of manually transferring eggs into a hatching cylinder for hatching after spawning in a spawning pond, leading flowing water into the hatching cylinder for waiting for the hatching of the fries, and wiping out the fries after hatching to enter a feeding cultivation level for feeding.
Disclosure of Invention
The invention aims to design a high-yield seedling raising system capable of greatly improving the yield and high in automation level aiming at the problems of low production efficiency, low yield and high labor intensity of the existing fry hatching device. .
The technical scheme of the invention is as follows:
A high-yield seedling raising system is characterized by comprising:
a water source 1 which can provide pressurized water for the subsequent spawning pond 2 and hatching pond 3;
The bottom of each spawning pond 2 is in a conical structure, the upper part of each spawning pond 2 is connected with a water enclosing structure, the conical bottom of each spawning pond 2 is provided with an ovulation port 201, the ovulation port 201 is connected with an incubation discharging pipe 202, and the outlet end of the ovulation pipe 202 is positioned in a transition pond 203; a circle of spawning pond water inlet nozzles 204 are arranged on the conical surface of the spawning pond 2, the spawning pond water inlet nozzles 204 are communicated with the water source 1, and water flow of the spawning pond water inlet nozzles 204 is sprayed to the joint of the enclosing structure and the conical surface along the conical surface;
A plurality of hatching ponds 3, wherein a circular island 301 for circulating fish eggs and fish fries in a unidirectional way is arranged in the middle of the hatching ponds, and egg-containing water discharged from the spawning ponds 2 is sent into one or a plurality of hatching ponds 3 through an ovulation pipe 202; a hatching pond water inlet nozzle 302 is arranged in the pond bottom of the hatching pond 3, the hatching pond water inlet nozzle 302 is communicated with a water supply channel 303 at the bottom of the annular island 301 through a pipeline, and the water supply channel 303 is communicated with a water source 1 through a pipeline; the water sprayed by the water inlet nozzle 301 of the hatching pond continuously supplements the water of the hatching pond and simultaneously enables the water in the hatching pond to flow unidirectionally; a drainage pool 304 is arranged in the center of the annular island, the drainage pool is communicated with a drainage main pipe 306 at the bottom of the annular island through a vertical drainage pipe or channel 305, and the drainage main pipe 306 is communicated with a drainage canal 5; a water level adjusting pipe 307 is arranged on the vertical drain pipe or channel 305 to adjust the water level of the hatching pond 3; the wall and the bottom of the hatching pond are also provided with seedling catching openings 308; an egg-blocking net 309 is mounted on the annular island 301.
The water source 1 consists of a water inlet tower 101 and a static pressure tower 102, the outlet end of the static pressure tower 102 is communicated with each water supply pipe, the water inlet of the static pressure tower 102 is communicated with an annular channel 104 of the water inlet tower 101 through an underdrain 103, and a circle of water inlet pipes 105 which can be pulled out are additionally arranged on the annular channel 104; the annular channel is positioned below the water surface of the purified water tank, insect-preventing purse nets 106 are additionally arranged around the annular channel, the insect-preventing purse nets 106 are higher than the water surface of the purified water tank, the water inlet pipe 105 is pulled out, water which is purified in advance by fish in the purified water tank is filtered by the insect-preventing purse nets 106 and then enters the annular water channel 104, a circulation is formed in the annular water channel 104, then enters the underdrain 103, and then enters the static pressure tower 102 to be pressurized and enter various water supply pipelines; the pressurization can be performed by utilizing the natural water head difference, and can also be performed by utilizing the water pump to lift and then perform pressurization.
The spawning pond water inlet nozzle 204 is communicated with the water source 1 through a water inlet pipe, and a manual or electric valve 205 is arranged on the water inlet pipe.
Three pipeline outlets are arranged in the transition pool 203, the height of the transition pool 203 is Chi Jiping with spawning, one pipeline outlet is the outlet of the ovulation pipe 202, the other pipeline outlet is a water outlet, the other pipeline outlet is an ovulation port, and the three pipeline outlets are communicated with the two pipeline outlets through a connecting elbow or a straight pipe; when parent fish does not spawn, water without spawn flows out from the outlet of the ovulation tube 202, enters the water outlet through a connecting elbow and flows into the water outlet channel 4, at the moment, no water flows out from the ovulation port, and the straight tube of the transition pool can be directly arranged on the ovulation port, so that the water without spawn flowing out from the outlet of the ovulation tube is injected into the transition pool and then discharged from the water outlet; after spawning of parent fish, the egg-containing water flows out from the outlet of the ovulation tube 202, enters the ovulation port through a connecting elbow and flows into the hatching pond 3, or the egg-containing water flowing out from the outlet of the ovulation tube 202 is injected into the transition pond and then enters the hatching pond 3 from the ovulation port through the water outlet additionally provided with the straight tube; when the ovulation is finished, the plug 206 at the lower part of the ovulation tube 202 is opened so that the water in the spawning pond 3 cannot enter the transition pond 203 and is directly discharged into the drainage channel 4.
One spawning pond 2 supplies eggs for at least two hatching ponds 3.
The bottoms of the two ends of the annular island 301 are also provided with a water inlet nozzle 301 of the hatching pond so as to prevent the generation of water flow dead angles.
At least three seedling catching openings 308 are arranged at different heights, at least one of the seedling catching openings is arranged at the bottom of the hatching pond 3, and the corresponding seedling catching openings are opened according to different water levels to put the seedlings, so that the situation that the water outlet pressure is too high to wash the fish fries due to the too high water level of the seedling catching openings is prevented; the seedling emergence openings on the adjacent hatching ponds can share a seedling emergence pipe to be communicated with the seedling receiving pond.
A backwash nozzle is mounted on the annular island inside the egg blocking net 309 for periodically flushing the egg membrane stuck to the net into the annular pool to prevent clogging of the mesh.
A manual or electric valve is installed on the pipe connecting the water supply channel 303 with the water source 1.
The two ends of the annular island 301 are respectively provided with a water tower 310 for increasing water pressure, the water towers 310 at the two ends are communicated with a water source 1 through a water supply channel 303 at the bottom, one water tower 310 is communicated with a water source 1 through a pipeline, the bottom of the water tower 310 is provided with a water outlet communicated with a water outlet main pipe 306, a water inlet water level regulating pipe 311 is additionally arranged on the water outlet in a seedling incubating state so as to prevent water entering the water tower from being discharged from the water outlet, the water pressure of the water supply channel 303 is regulated, and when the water pressure exceeds a set value, redundant water flows into the water outlet main pipe 306 from the water inlet water level regulating pipe 311; after seedling raising is finished, the water inlet water level regulating pipe 311 is taken down, so that water of a water source can be directly discharged into a drainage canal from a drainage main pipe and discharged into water in a water tower; the water in the drainage canal 5 and the drainage channel 4 is directly discharged or purified and then discharged, or the purified water is returned to a water source, wherein the purified water can be pumped into a pond by a river channel, and silver carp with purified water quality is cultured in the pond, and the silver carp can generate microorganism nourishment which is beneficial to fish fry hatching in the culture process for recycling after being purified.
The invention has the beneficial effects that:
The invention has high production efficiency, low labor intensity, single management of tens of hatching ponds, the yield can be improved from 50 ten thousand per cubic water to 300 ten thousand per cubic water, the egg hatching rate is high and reaches more than 95 percent due to the adoption of the circulating flow of the spawning ponds and the hatching pond water bodies, the survival rate of the fries is high, the automation can be realized in the whole process, manual intervention is not needed, manual valve or electric valve opening and closing is only needed, especially the electric valve can be controlled remotely, and the remote control can be realized if cameras are additionally arranged on the spawning ponds and the hatching ponds. And full and automatic unmanned management is realized. The intelligent remote management can be realized through the mobile phone APP in the later period, and the seedling management can be realized by people in the journey.
The invention is suitable for large-scale seedling cultivation, and hundreds of millions of seedlings can be cultivated in each pond every season, so that the true high-yield seedling cultivation is realized.
The invention can realize the cyclic utilization of water data and can realize automatic circulation by utilizing water level difference.
The silver carp culture pond is used as a purified water source, and is recycled, so that the water quality is favorable for the survival of eggs and fishes.
The invention has high automation level, realizes water supply through the water quantity nozzle, simultaneously causes water in the spawning pond and the hatching pond to circularly flow, improves the fluidity and the oxygen content of the water body, is beneficial to the cleaning of the pond body and prevents the generation of scale deposit and moss.
The invention has simple structure and convenient realization.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention in a top view.
FIG. 2 is a schematic structural view of the spawning pond of the present invention.
FIG. 3 is a schematic structural view of the transition cell of the present invention.
Fig. 4 is a schematic top view of the hatching pond of the present invention.
Fig. 5 is a schematic perspective view of the hatching pond of the present invention.
Fig. 6 is a cross-sectional view A-A of fig. 4.
Fig. 7 is a B-B cross-sectional view of fig. 4.
Fig. 8 is a schematic view of the structure of the water source of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1-8.
A high-yield seedling raising system can be widely applied to the cultivation of fish fries of four large fishes and high-quality commercial fishes such as mandarin fish and the like, and mainly comprises a water source 1, a spawning pond 2, a hatching pond 3 and a seedling raising pond 6, as shown in figure 1. The water source 1 mainly provides pressurized water for the subsequent spawning pond 2 and hatching pond 3, and mainly comprises a water inlet tower 101 and a static pressure tower 102, as shown in fig. 8, the outlet end of the static pressure tower 102 is communicated with each water supply pipe, the water inlet of the static pressure tower 102 is communicated with an annular channel 104 of the water inlet tower 101 through an underdrain 103, and a circle of water inlet pipes 105 which can be pulled out are additionally arranged on the annular channel 104; the annular channel is positioned below the water surface of the purified water tank, the insect-preventing purse net 106 is additionally arranged around the annular channel, the insect-preventing purse net 106 is higher than the water surface of the purified water tank, the water inlet pipe 105 is pulled out, the water which is purified in advance by fish in the purified water tank 107 (the area is preferably more than 10 mu of the water surface and the fish which can purify the water quality is bred) is filtered by the insect-preventing purse net 106 and then enters the annular water channel 104, a circulation is formed in the annular water channel 104, then enters the underdrain 103, and then enters the static pressure tower 102 for pressurization and enters various water supply pipelines; the pressurization can be performed by utilizing the natural water head difference, and can also be performed by utilizing the water pump to lift and then perform pressurization. In the specific implementation, the purifying pond is preferably built in a fish pond, and the water quality is purified by utilizing the fishes (such as silver carps) raised in the fish pond, so that the water quality is cleaned by the fishes, the water body contains nutrients required by the hatching and growth of the fries, the water in the fish pond can be water directly extracted from a flowing water area, and the water body circulation can be realized by utilizing purified water after spawning and hatching.
The number of the spawning ponds 2 can be determined according to the annual production scale, and can be designed into structures with the same size or can be designed into combinations of sizes, as shown in fig. 2, the spawning ponds with the same size are all conical structures at the bottoms, water enclosing structures are connected to the upper parts of the spawning ponds, an ovulation port 201 is arranged at the conical bottom of the spawning ponds 2, an incubating tube 202 is connected to the ovulation port 201, and the outlet end of the ovulation tube 202 is positioned in a transition pond 203; a circle of spawning pond water inlet nozzles 204 are arranged on the conical surface of the spawning pond 2, the spawning pond water inlet nozzles 204 are communicated with the water source 1, and water flow of the spawning pond water inlet nozzles 204 is sprayed to the joint of the enclosing structure and the conical surface along the conical surface; the spawning pond water inlet nozzle 204 is communicated with the water source 1 through a water inlet pipe, a manual or electric valve 205 is arranged on the water inlet pipe, and the electric valve can be controlled by a comprehensive control room or can be remotely controlled. The structure of the transition pool 203 is shown in fig. 3, three pipeline outlets are arranged in the transition pool 203, the height of the transition pool 203 and spawning Chi Jiping are arranged, one pipeline outlet is the outlet of the ovulation tube 202, the other pipeline outlet is a water outlet, the other pipeline outlet is an ovulation mouth, and the three pipeline outlets ensure the communication of the two pipeline outlets through a connecting elbow or a straight tube; when parent fish does not spawn, water without spawn flows out from the outlet of the ovulation tube 202, enters the water outlet through a connecting elbow and flows into the water outlet channel 4, at the moment, no water flows out from the ovulation port, and the straight tube of the transition pool can be directly arranged on the ovulation port, so that the water without spawn flowing out from the outlet of the ovulation tube is injected into the transition pool and then discharged from the water outlet; after spawning of parent fish, the egg-containing water flows out from the outlet of the ovulation tube 202, enters the ovulation port through a connecting elbow and flows into the hatching pond 3, or the egg-containing water flowing out from the outlet of the ovulation tube 202 is injected into the transition pond and then enters the hatching pond 3 from the ovulation port through the water outlet additionally provided with the straight tube; when the ovulation is finished, the plug 206 at the lower part of the ovulation tube 202 is opened so that the water in the spawning pond 3 cannot enter the transition pond 203 and is directly discharged into the drainage channel 4.
In the middle of the hatching pond 3, a circular island 301 for circulating fish eggs and fish fries in a unidirectional way is arranged, as shown in figures 4 and 5, egg-containing water discharged from the spawning pond 2 is sent into one or more hatching ponds 3 through an ovulation tube 202; 108 hatching pond water inlet nozzles 302 (the quantity can be set according to the bottom surface area of the hatching pond and the required flow rate, and the hatching pond water inlet nozzles 302 can be fully or partially opened) are arranged in the pond bottom of the hatching pond 3 of the embodiment, the hatching pond water inlet nozzles 302 are communicated with a water supply channel 303 at the bottom of the annular island 301 through a pipeline (as shown in fig. 6), and a manual or electric valve is arranged on the pipeline which is communicated with the water supply channel 303 and the water source 1. The water supply channel 303 is communicated with the water source 1 through a pipeline; the water sprayed by the water inlet nozzle 301 of the hatching pond continuously supplements the water of the hatching pond and simultaneously enables the water in the hatching pond to flow unidirectionally; a drainage pool 304 is arranged in the center of the annular island, the drainage pool is communicated with a drainage main pipe 306 at the bottom of the annular island through a vertical drainage pipe or channel 305, and the drainage main pipe 306 is communicated with a drainage canal 5; a water level adjusting pipe 307 is arranged on the vertical drain pipe or channel 305 to adjust the water level of the hatching pond 3; the wall and the bottom of the hatching pond are also provided with seedling catching openings 308; an egg-blocking net 309 is mounted on the annular island 301. Specifically, one spawning pond 2 supplies eggs to at least two to three hatching ponds 3. In order to prevent the generation of water flow dead angles, the bottoms of the two ends of the annular island 301 are also provided with hatching pond water inlet nozzles 301. At least three seedling catching openings 308 are arranged at different heights, at least one of which is arranged at the bottom of the hatching pond 3, and the corresponding seedling catching openings are opened according to different water levels to put the seedlings, so that the phenomenon that the fish seedlings are damaged due to overlarge water outlet pressure caused by overlarge water level of the seedling catching openings is prevented; the seedling emergence openings on the adjacent hatching ponds can share a seedling emergence pipe to be communicated with the seedling receiving pond. A backwash nozzle is mounted on the annular island inside the egg-blocking net 309 for periodically flushing the follicles stuck to the net into the annular pool to prevent the net holes from being blocked. The two ends of the annular island 301 are respectively provided with a water tower 310 for increasing water pressure, as shown in fig. 7, the water towers 310 at the two ends are communicated with a water source 1 through a water supply channel 303 at the bottom, one water tower 310 is communicated with the water source 1 through a pipeline, the bottom of the water tower 310 is provided with a water outlet communicated with a water outlet main pipe 306, a water inlet water level regulating pipe 311 is additionally arranged on the water outlet in a hatched state so as to prevent water entering the water tower from being discharged from the water outlet, and the water pressure of the water supply channel 303 is regulated at the same time, and when the water pressure exceeds a set value, redundant water flows into the water outlet main pipe 306 from the water inlet water level regulating pipe 311; after seedling raising is finished, the water inlet water level regulating pipe 311 is taken down, so that water of a water source can be directly discharged into a drainage canal from a drainage main pipe and discharged into water in a water tower; the water in the drainage canal 5 and the drainage channel 4 is directly discharged or purified and then discharged, or the purified water is returned to a water source, wherein the purified water can be pumped into a pond by a river channel, and silver carp with purified water quality is cultured in the pond, and the silver carp can generate microorganism nourishment which is beneficial to fish fry hatching in the culture process for recycling after being purified.
The working principle of the invention is as follows:
When the seedling growing season is entered each year, the water inlet pipe 105 on the annular water channel of the water source 1 is firstly opened, water in the purified water surface immediately enters the water inlet through the insect-proof purse net and enters the annular water channel to form circulation, then enters the underdrain, and enters the static pressure tower to form water pressure under the action of water level difference. The water inlet valve of the spawning pond is opened, the water in the spawning pond is sprayed and filled into the spawning pond 2 to the set water level, and the water in the spawning pond is circularly rotated under the impact of the water flow because the water flow direction of the water nozzle is inclined to the pond wall, parent fish can be put into the spawning pond at the moment, and mating spawning is performed when the water pressure impact flow is set, so that spawned eggs are concentrated in the middle of the spawning pond. Between the parent fish not spawning, the water discharged from the ovulation port at the conical bottom of the spawning pond is egg-free water, and is directly discharged into the transition pond and directly discharged into the drainage channel under the intervention of an elbow or a straight pipe; when parent fish is about to spawn, a water inlet valve of the hatching pond is opened, and the hatching pond is filled with hatching water through a nozzle of the hatching pond; after spawning of parent fish, the water discharged from spawning pond contains spawn, and at this time, the water flow direction in the transition pond should be changed, so that spawn discharged from ovulation tube can be fed into hatching pond by means of ovulation tube, and the water inlet valve of spawning pond can be closed until spawn is not discharged from spawning pond. After the fish eggs enter the hatching pond, the fish eggs rotate in a single direction in the hatching pond along with water flow, egg membranes after the fish eggs are hatched are adhered to the egg blocking net, fish fries cannot pass through the egg blocking net and escape, the fish fries can only flow in the hatching pond, and when the water level rises due to excessive egg membranes adhered to the egg blocking net, a back flushing nozzle is started to flush the egg membranes into water. When the fish fry grows to the size of the fry emergence, the upper most seedling catching port on the hatching pond can be opened to guide the fish fry into the seedling catching pipe and send the fish fry into the seedling catching pond for collection. The water quality in the hatching process is not polluted, so that the circulating water in the hatching pond can enter a main drainage pipe at the bottom from a water outlet in the middle of the annular island and enter a drainage canal 5 for drainage, and the water drained from the seedling catching pond 6 is also drained from the drainage pond for recycling or direct drainage. The water inlet valve can be closed when the seedling catching is started, and the water level regulating pipe in the water tower can be discharged after the seedling catching is finished, so that the water in the hatching pond is thoroughly emptied.
The invention is not related in part to the same as or can be practiced with the prior art.
Claims (7)
1.A high-yield seedling raising system is characterized by comprising:
a water source (1) which can provide pressurized water for the subsequent spawning pond (2) and hatching pond (3);
The bottom of each spawning pond (2) is of a conical structure, the upper part of each spawning pond (2) is connected with a water enclosing structure, the conical bottom of each spawning pond (2) is provided with an ovulation port (201), the ovulation port (201) is connected with an ovulation tube (202), and the outlet end of the ovulation tube (202) is positioned in a transition pond (203); a circle of spawning pond water inlet nozzles (204) are arranged on the conical surface of the spawning pond (2), the spawning pond water inlet nozzles (204) are communicated with the water source (1), and water flow of the spawning pond water inlet nozzles (204) is sprayed to the joint part of the water enclosing structure and the conical surface along the conical surface;
A plurality of hatching ponds (3), a circular island (301) which enables fish eggs and fish fries to circulate in a unidirectional way is arranged in the middle of the hatching ponds, and egg-containing water discharged from the spawning ponds (2) is sent into one or a plurality of hatching ponds (3) through an ovulation pipe (202); a hatching pond water inlet nozzle (302) is arranged in the pond bottom of the hatching pond (3), the hatching pond water inlet nozzle (302) is communicated with a water supply channel (303) at the bottom of the annular island (301) through a pipeline, and the water supply channel (303) is communicated with a water source (1) through a pipeline; the water sprayed by the water inlet nozzle (302) of the hatching pond continuously supplements the water of the hatching pond and simultaneously enables the water in the hatching pond to flow unidirectionally; a drainage pool (304) is arranged in the center of the annular island, the drainage pool is communicated with a drainage main pipe (306) at the bottom of the annular island through a vertical drainage pipe or channel (305), and the drainage main pipe (306) is communicated with a drainage canal (5); a water level adjusting pipe (307) is additionally arranged on the vertical drain pipe or channel (305) to adjust the water level of the hatching pond (3); the wall and the bottom of the hatching pond are also provided with seedling catching ports (308); an egg-blocking net (309) is arranged on the annular island (301);
The water source (1) consists of a water inlet tower (101) and a static pressure tower (102), the outlet end of the static pressure tower (102) is communicated with each water supply pipe, the water inlet of the static pressure tower (102) is communicated with an annular channel (104) of the water inlet tower (101) through an underdrain (103), and a circle of water inlet pipes (105) which can be pulled out are additionally arranged on the annular channel (104); the annular channel is positioned below the water surface of the purified water tank, insect-proof purse nets (106) are additionally arranged around the annular channel, the height of the insect-proof purse nets (106) is higher than the water surface of the purified water tank, the water inlet pipe (105) is pulled out, water which is purified in advance by fish in the purified water tank (107) is filtered by the insect-proof purse nets (106) and then enters the annular channel (104), a circulation is formed in the annular channel (104), then enters the underdrain (103), and then enters the static pressure tower (102) to be pressurized and enter various water supply pipelines; the pressurization is performed by utilizing a natural water level difference or by utilizing a water pump to lift and then boost;
The two ends of the annular island (301) are respectively provided with a water tower (310) for increasing water pressure, the water towers (310) at the two ends are communicated with a water source (1) through a water supply channel (303) at the bottom, one water tower (310) is communicated with the water source through a pipeline, the bottom of the water tower (310) is provided with a water outlet communicated with a water outlet main pipe (306), a water inlet water level regulating pipe (311) is additionally arranged on the water outlet in a hatching state so as to prevent water entering the water tower from being discharged from the water outlet, and meanwhile, the water pressure of the water supply channel (303) is regulated, and when the water pressure exceeds a set value, redundant water flows into the water outlet main pipe (306) from the water inlet water level regulating pipe (311); after seedling raising is finished, the water inlet water level regulating pipe (311) is taken down, namely water of a water source is directly discharged into a drainage canal from a drainage main pipe, and water in a water tower is discharged;
Three pipeline outlets are arranged in the transition pool (203), wherein one pipeline outlet is the outlet of the ovulation pipe (202), the other pipeline outlet is the water outlet, the other pipeline outlet is the ovulation port, and the three pipeline outlets ensure the communication of the two pipeline outlets through a connecting elbow or a straight pipe; when parent fish does not spawn, water without spawn flows out from the outlet of the ovulation tube (202), enters the water outlet through a connecting elbow and flows into the water outlet channel (4), at the moment, no water flows out from the ovulation mouth, or the straight tube of a transition pool is directly arranged on the ovulation mouth, so that the water without spawn flowing out from the outlet of the ovulation tube is injected into the transition pool and then is discharged from the water outlet; after spawning of parent fish, the egg-containing water flows out from the outlet of the ovulation tube (202) through a connecting elbow to enter an ovulation port and then flows into the hatching pond (3), or the straight tube is additionally arranged on the water outlet, so that the egg-containing water flowing out from the outlet of the ovulation tube (202) is injected into the transition pond and then enters the hatching pond (3) from the ovulation port; when the ovulation is finished, a plug (206) at the lower part of the ovulation tube (202) is opened, so that water in the spawning pond (2) cannot enter the transition pond (203) and is directly discharged into the drainage channel (4).
2. The high-yield seedling raising system as claimed in claim 1, wherein the spawning pond water inlet nozzle (204) is communicated with the water source (1) through a water inlet pipe, and a manual or electric valve (205) is arranged on the water inlet pipe.
3. The high-yield seedling raising system as claimed in claim 1, wherein one spawning pond (2) is at least two hatching ponds (3) for spawning.
4. The high-yield seedling raising system according to claim 1, wherein the bottoms of the two ends of the annular island (301) are also provided with a hatching pond water inlet nozzle (302) to prevent the generation of water flow dead angles.
5. The high-yield seedling raising system according to claim 1, wherein at least three seedling catching openings (308) are arranged at different heights, at least one of the seedling catching openings is arranged at the bottom of the hatching pond (3), and the corresponding seedling catching openings are opened according to different water levels to put the seedlings, so that the situation that the seedlings are damaged by the excessive water pressure of the water at the seedling catching openings is prevented; the seedling emergence openings on the adjacent hatching ponds share a seedling emergence pipe which is communicated with the seedling receiving pond.
6. A high yield seedling raising system as claimed in claim 1, wherein a backwash nozzle (312) is installed on the annular island inside said egg blocking net (309) for periodically flushing egg membranes stuck on the egg blocking net into the annular island to prevent mesh clogging.
7. The high-yield seedling raising system as claimed in claim 1, wherein a manual or electric valve is installed on a pipeline for communicating the water supply channel (303) with the water source (1).
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| CN201810435321.2A CN108323461B (en) | 2018-05-09 | 2018-05-09 | High-yield seedling raising system |
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| CN108323461B true CN108323461B (en) | 2024-05-17 |
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| CN113907026B (en) * | 2021-09-26 | 2022-07-05 | 南方海洋科学与工程广东省实验室(湛江) | Floating egg collecting device and using method thereof |
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