CN107969377A - A kind of rectangle shrimp-cultivation pool dirt collection current driving structure - Google Patents
A kind of rectangle shrimp-cultivation pool dirt collection current driving structure Download PDFInfo
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- CN107969377A CN107969377A CN201711184094.2A CN201711184094A CN107969377A CN 107969377 A CN107969377 A CN 107969377A CN 201711184094 A CN201711184094 A CN 201711184094A CN 107969377 A CN107969377 A CN 107969377A
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- shrimp
- pool
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 128
- 239000010865 sewage Substances 0.000 claims abstract description 32
- 241000238557 Decapoda Species 0.000 claims abstract description 30
- 238000005266 casting Methods 0.000 claims abstract description 30
- 230000033228 biological regulation Effects 0.000 claims description 15
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 description 8
- 238000004220 aggregation Methods 0.000 description 7
- 230000002776 aggregation Effects 0.000 description 7
- 238000009360 aquaculture Methods 0.000 description 3
- 244000144974 aquaculture Species 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- A01K63/045—Filters for aquaria
-
- 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
-
- 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
- A01K63/047—Liquid pumps for aquaria
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses one kind can effectively assemble dirt in shrimp-cultivation pool, be conducive to the rectangle shrimp-cultivation pool dirt collection current driving structure of the health and health of shrimp.It includes rectangle form pool and current driving device, the bottom of the rectangle form pool is equipped with slope, the height on slope progressively diminishes along the direction away from current driving device to close to the direction of current driving device, rectangle form pool bottom is equipped with the sewage sump connected with rectangle form pool close to one end of current driving device, the lateral wall of rectangle form pool is equipped with the blow-off pipe connected with sewage sump, and blow-off pipe is equipped with blowdown valve；The current driving device includes inlet pipe casting, water outlet pipe fitting, aqueduct and the water pump being located on aqueduct, one end of aqueduct is connected with inlet pipe casting, the other end of aqueduct is connected with water outlet pipe fitting, inlet pipe casting and water outlet pipe fitting are in rectangle form pool, inlet pipe casting is located at the lower part of rectangle form pool, and water outlet pipe fitting is located at the top of inlet pipe casting.
Description
Technical field
The present invention relates to field of aquaculture devices, more particularly to a kind of rectangle shrimp-cultivation pool dirt collection current driving structure.
Background technology
Batch production supports shrimp occupation of land less, and yield is high, profitable, the prawn disease that can be brought to avoid the foster shrimp mode of tradition and water body dirt
Dye, reduces adverse effect of the weather to cultivation, and for the prawn culturing of China coast by development for many years, batch production supports shrimp with one
Fixed basis, some areas industrial aquaculture reach advanced international standard, generally it is basic use cement pit and greenhouse for
The intensive culture pattern of core.
For the consideration of foster shrimp utilization of area rate, generally cultivated using rectangle shrimp-cultivation pool, the growth of shrimp-cultivation pool Prawn
Water quality, water temperature, Variation of Salinity Condition have corresponding requirement, and ensure there are certain current, promote blowdown and the satisfaction pair of aquaculture pond
Shrimp psychological need, the cultivation equipment used in existing shrimp-cultivation pool there are energy consumption is excessive, blowdown is poor, waste water is most cannot be effective
The problems such as processing.
205492138 U of Chinese patent Authorization Notice No. CN, authorized announcement date 2016.08.24, an entitled " breeding
Shrimp equipment ", discloses one kind and opens up sewage draining exit among shrimp-cultivation pool bottom, lives sewage draining exit by cover guard, cover net is by its top
Pulley and drawstring control cover sewage draining exit and still expose sewage draining exit, displacement is big during this equipment blowdown, and dirt is not enough concentrated
It is difficult to be discharged, shrimp lives in the environment of dirt always before blowdown, influences the hygiene and health of shrimp.
The content of the invention
The purpose of the invention is to overcome deficiency of the prior art, there is provided one kind can effectively assemble dirty in shrimp-cultivation pool
Thing, is conducive to the rectangle shrimp-cultivation pool dirt collection current driving structure of shrimp health and health.
To achieve these goals, the present invention uses following technical scheme：
A kind of rectangle shrimp-cultivation pool dirt collection current driving structure, including
Rectangle form pool and current driving device, the bottom of the rectangle form pool are equipped with slope, and the height on slope is along away from current driving dress
The direction put progressively diminishes to close to the direction of current driving device, and rectangle form pool bottom is equipped with close to one end of current driving device
The sewage sump connected with rectangle form pool, the lateral wall of rectangle form pool are equipped with the blow-off pipe connected with sewage sump, and blow-off pipe is equipped with row
Dirty valve；
The current driving device includes inlet pipe casting, water outlet pipe fitting, aqueduct and the water pump being located on aqueduct, water delivery
One end of pipeline is connected with inlet pipe casting, and the other end of aqueduct is connected with water outlet pipe fitting, and inlet pipe casting and water outlet pipe fitting are equal
In rectangle form pool, inlet pipe casting is located at the lower part of rectangle form pool, and water outlet pipe fitting is located at the top of inlet pipe casting.Reality of the invention should
Used time, inlet pipe casting and water outlet pipe fitting are in underwater in rectangle form pool, and the water in rectangle form pool enters water-supply-pipe from inlet pipe casting
Road, through water pump to water outlet pipe fitting, makes to form circulating water flow in rectangle form pool, the dirt of rectangle form pool bottom is as current are into sewage sump
Aggregation, slope make dirt also be moved under the action of self gravitation into sewage sump, and the dirt moment all assembles into sewage sump, protect
The water quality in rectangle form pool is held, blowdown valve is opened in dirt aggregation afterwards to a certain extent, and dirt is discharged outside pond by blow-off pipe.
Preferably, the inlet pipe casting includes water inlet pipe and water inlet header, the length direction and rectangle form pool of water inlet pipe
Width it is parallel, water inlet pipe is equipped with some inlet openings, and inlet opening, water inlet header and aqueduct are sequentially communicated.Into
The arranged direction of water pipe coordinates the shape of rectangle form pool, and multiple inlet openings can form stable current, strengthen the mobility of water.
Preferably, each inlet opening is equally spaced along the length direction of water inlet pipe, the axis horizontal of inlet opening, inlet opening
Axis of the axis perpendicular to water inlet pipe.Inlet opening absorbs water in the horizontal direction, beneficial to dirt of the rectangle form pool bottom away from inlet opening to
Assemble in sewage sump.
Preferably, the water outlet pipe fitting includes support tube, water outlet header and some water flowing out structure, the length of support tube
Direction is parallel with the width of rectangle form pool, and water flowing out structure includes outlet pipe and connecting tube, and connecting tube is equipped with outlet valve, water outlet
Pipe is equipped with some apopores, and apopore, connecting tube, support tube, water outlet header and aqueduct are sequentially communicated.Multiple water outlets
Hole forms stable outgoing current, can be by switching outlet valve, according to the dirt aggregation situation adjustment water flowing out structure in rectangle form pool
The number of unlatching, so that the firing rate of outgoing current increaseds or decreases, improves or reduces the water flow velocity at corresponding water flowing out structure
Degree, accelerates the dirt aggregation velocity of relevant position.
Preferably, each outlet pipe is equally spaced along the length direction of support tube.The outlet pipe being equally spaced is beneficial to water outlet
Uniformly.
Preferably, the axis horizontal of the apopore, the axis of apopore goes out perpendicular to the axis of outlet pipe at one
In water-bound：Each apopore is equally spaced along the length direction of outlet pipe.Ensure the current of horizontal exit while water outlet is uniform
Also more water in rectangle form pool can be influenced, promote the water of whole rectangle form pool to be circulated, dirt is reduced and is difficult to the dead of movement
Angle.
Preferably, the aqueduct is equipped with regulation pipe, one end of regulation pipe is connected with the entrance of water pump, regulation pipe
The other end and water pump outlet, regulation pipe is equipped with regulating valve.Water pump come out the adjusted pipe of a part of water again into
Enter water pump, adjust the flow of discharging device, specific size opens extent control by the pass of control valve.
Preferably, the rectangle form pool lateral wall is equipped with equipment pond, water pump is located in equipment pond, and equipment pond is located at dirt collection
The top of groove.Equipment pond is used to place water pump, prevented also from aqueduct, regulation pipe because exposing to the weather and aging.
Preferably, the notch of the sewage sump is equipped with gear shrimp net, gear shrimp net is between rectangle form pool and sewage sump.Keep off shrimp
Net can prevent shrimp from misprinting out outside pond.
The beneficial effects of the invention are as follows：（1）It is stable that current driving device coordinates the slope of rectangle form pool bottom to be formed
Reflux flow field, and then drive bottom dirt to gather in sewage sump；（2）Inlet pipe casting, water outlet pipe fitting, current driving device are formed
Stable water circulation, beneficial to the growth of shrimp；（3）Construction is simple, it is economic and environment-friendly, there is popularization, sustainability；（4）Dirt
It is gathered in sewage sump, shrimp is also got along well dirt direct long term contact before blowdown, is conducive to the hygiene and health of shrimp.
Brief description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the front view of current driving device in the present invention；
Fig. 4 is the left view of Fig. 3.
In figure：Rectangle form pool 1, slope 11, equipment pond 2, current driving device 3, inlet pipe casting 31, water inlet pipe 311, water inlet collection
Flow tube 312, inlet opening 313, water outlet pipe fitting 32, support tube 321, water outlet header 322, outlet pipe 323, connecting tube 324, water outlet
Valve 325, apopore 326, aqueduct 33, regulation pipe 331, regulating valve 332, water pump 34, sewage sump 4, blow-off pipe 41, blowdown valve
42nd, shrimp net 43 is kept off.
Embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Shown in as shown in Figure 1 to Figure 4, a kind of rectangle shrimp-cultivation pool dirt collection current driving structure, including
Rectangle form pool 1 and current driving device 3, the bottom of the rectangle form pool are equipped with slope 11, and the height on slope is driven along away from current
The direction of dynamic device progressively diminishes to close to the direction of current driving device, and rectangle form pool bottom is close to one end of current driving device
Equipped with the sewage sump 4 connected with rectangle form pool, the lateral wall of rectangle form pool is equipped with the blow-off pipe 41 connected with sewage sump, on blow-off pipe
Equipped with blowdown valve 42；
The current driving device includes inlet pipe casting 31, water outlet pipe fitting 32, aqueduct 33 and the water being located on aqueduct
Pump 34, one end of aqueduct is connected with inlet pipe casting, and the other end of aqueduct is connected with water outlet pipe fitting, inlet pipe casting with go out
Pipe fitting is in rectangle form pool, and inlet pipe casting is located at the lower part of rectangle form pool, and water outlet pipe fitting is located at the top of inlet pipe casting.
During practical application of the present invention, inlet pipe casting and water outlet pipe fitting are in underwater in rectangle form pool, the water in rectangle form pool
Enter aqueduct from inlet pipe casting, through water pump to water outlet pipe fitting, make to form circulating water flow, the dirt of rectangle form pool bottom in rectangle form pool
Thing is assembled with current into sewage sump, and slope makes dirt also be moved under the action of self gravitation into sewage sump, during dirt
Quarter all assembles into sewage sump, keeps preferable water quality in rectangle form pool, blowdown valve is opened in dirt aggregation afterwards to a certain extent, by dirt
Thing is discharged outside pond by blow-off pipe.
The inlet pipe casting includes water inlet pipe 311 and water inlet header 312, the length direction of water inlet pipe and the width of rectangle form pool
It is parallel to spend direction, water inlet pipe is equipped with some inlet openings 313, and inlet opening, water inlet header and aqueduct are sequentially communicated；Respectively into
Water hole is equally spaced along the length direction of water inlet pipe, the axis horizontal of inlet opening, the axis of the axis of inlet opening perpendicular to water inlet pipe
Line；Water outlet pipe fitting includes support tube 321, water outlet header 322 and some water flowing out structure, the length direction and rectangle form pool of support tube
Width it is parallel, water flowing out structure includes outlet pipe 323 and connecting tube 324, and connecting tube is equipped with outlet valve 325, outlet pipe
Some apopores 326 are equipped with, apopore, connecting tube, support tube, water outlet header and aqueduct are sequentially communicated；Each water outlet
Pipe is equally spaced along the length direction of support tube；The axis horizontal of apopore, the axis of apopore perpendicular to outlet pipe axis,
In a water flowing out structure：Each apopore is equally spaced along the length direction of outlet pipe；Aqueduct is equipped with regulation pipe 331,
One end of regulation pipe is connected with the entrance of water pump, the other end of regulation pipe and the outlet of water pump, and regulation pipe, which is equipped with, to be adjusted
Valve 332；Rectangle form pool lateral wall is equipped with equipment pond 2, and water pump is located in equipment pond, and equipment pond is located at the top of sewage sump；Dirt collection
The notch of groove is equipped with gear shrimp net 43, and gear shrimp net is between rectangle form pool and sewage sump.
The arranged direction of water inlet pipe coordinates the shape of rectangle form pool, and multiple inlet openings can form stable current, strengthen water
Mobility；Inlet opening absorbs water in the horizontal direction, assembles beneficial to dirt of the rectangle form pool bottom away from inlet opening into sewage sump；It is more
A apopore forms stable outgoing current, can be adjusted out by switching outlet valve according to the dirt aggregation situation in rectangle form pool
The number that water-bound is opened, so that the firing rate of outgoing current increaseds or decreases, improves or reduces at corresponding water flowing out structure
Water velocity, accelerates the dirt aggregation velocity of relevant position；It is uniform that the outlet pipe being equally spaced is beneficial to water outlet；Horizontal direction is evenly distributed with
Apopore ensure water outlet it is uniform while horizontal exit current can also influence more water in rectangle form pool, promote whole rectangle
The water in pond is circulated, and is reduced dirt and is difficult to mobile dead angle；The adjusted pipe of a part of water that water pump comes out reenters
Water pump, adjusts the flow of discharging device, and specific size opens extent control by the pass of regulating valve；Equipment pond is used to place water
Pump, prevented also from aqueduct, regulation pipe because exposing to the weather and aging；Gear shrimp net can prevent shrimp from misprinting out outside pond.
The beneficial effects of the invention are as follows：Current driving device coordinates the slope of rectangle form pool bottom to form stable reflux
Flow field, and then drive bottom dirt to gather in sewage sump；Inlet pipe casting, water outlet pipe fitting, current driving device form stable
Water circulation, beneficial to the growth of shrimp；Dirt is gathered in sewage sump, and shrimp is also got along well dirt direct long term contact before blowdown, favorably
In the hygiene and health of shrimp；Construction is simple, it is economic and environment-friendly, there is popularization, sustainability.
Claims (9)
1. a kind of rectangle shrimp-cultivation pool dirt collection current driving structure, it is characterized in that, including
Rectangle form pool and current driving device, the bottom of the rectangle form pool are equipped with slope, and the height on slope is along away from current driving dress
The direction put progressively diminishes to close to the direction of current driving device, and rectangle form pool bottom is equipped with close to one end of current driving device
The sewage sump connected with rectangle form pool, the lateral wall of rectangle form pool are equipped with the blow-off pipe connected with sewage sump, and blow-off pipe is equipped with row
Dirty valve；
The current driving device includes inlet pipe casting, water outlet pipe fitting, aqueduct and the water pump being located on aqueduct, water delivery
One end of pipeline is connected with inlet pipe casting, and the other end of aqueduct is connected with water outlet pipe fitting, and inlet pipe casting and water outlet pipe fitting are equal
In rectangle form pool, inlet pipe casting is located at the lower part of rectangle form pool, and water outlet pipe fitting is located at the top of inlet pipe casting.
2. a kind of rectangle shrimp-cultivation pool dirt collection current driving structure according to claim 1, it is characterized in that, the inlet pipe casting
Including water inlet pipe and water inlet header, the length direction of water inlet pipe is parallel with the width of rectangle form pool, if water inlet pipe is equipped with
Dry inlet opening, inlet opening, water inlet header and aqueduct are sequentially communicated.
3. a kind of rectangle shrimp-cultivation pool dirt collection current driving structure according to claim 2, it is characterized in that, each inlet opening along into
The length direction of water pipe is equally spaced, the axis horizontal of inlet opening, the axis of the axis of inlet opening perpendicular to water inlet pipe.
4. a kind of rectangle shrimp-cultivation pool dirt collection current driving structure according to claim 1 or 2, it is characterized in that, the water outlet
Pipe fitting includes support tube, water outlet header and some water flowing out structure, and the length direction of support tube and the width of rectangle form pool are put down
OK, water flowing out structure includes outlet pipe and connecting tube, and connecting tube is equipped with outlet valve, and outlet pipe is equipped with some apopores, water outlet
Hole, connecting tube, support tube, water outlet header and aqueduct are sequentially communicated.
5. a kind of rectangle shrimp-cultivation pool dirt collection current driving structure according to claim 4, it is characterized in that, each outlet pipe edge branch
The length direction of stay tube is equally spaced.
6. a kind of rectangle shrimp-cultivation pool dirt collection current driving structure according to claim 4, it is characterized in that, the apopore
Axis horizontal, the axis of apopore perpendicular to outlet pipe axis, in a water flowing out structure：Length of each apopore along outlet pipe
Degree direction is equally spaced.
7. a kind of rectangle shrimp-cultivation pool dirt collection current driving structure according to claim 1 or 2, it is characterized in that, the water delivery
Pipeline is equipped with regulation pipe, and one end of regulation pipe is connected with the entrance of water pump, the other end of regulation pipe and the outlet of water pump,
Regulation pipe is equipped with regulating valve.
8. a kind of rectangle shrimp-cultivation pool dirt collection current driving structure according to claim 1 or 2, it is characterized in that, the rectangle
Pond lateral wall is equipped with equipment pond, and water pump is located in equipment pond, and equipment pond is located at the top of sewage sump.
9. a kind of rectangle shrimp-cultivation pool dirt collection current driving structure according to any claim in claim 1 to 8, it is special
Sign is that the notch of the sewage sump is equipped with gear shrimp net, and gear shrimp net is between rectangle form pool and sewage sump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711184094.2A CN107969377A (en) | 2017-11-23 | 2017-11-23 | A kind of rectangle shrimp-cultivation pool dirt collection current driving structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711184094.2A CN107969377A (en) | 2017-11-23 | 2017-11-23 | A kind of rectangle shrimp-cultivation pool dirt collection current driving structure |
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| Publication Number | Publication Date |
|---|---|
| CN107969377A true CN107969377A (en) | 2018-05-01 |
Family
ID=62011217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711184094.2A Pending CN107969377A (en) | 2017-11-23 | 2017-11-23 | A kind of rectangle shrimp-cultivation pool dirt collection current driving structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN107969377A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109258548A (en) * | 2018-11-28 | 2019-01-25 | 中国海洋大学 | Modified parent population raises and train pond |
| CN110250088A (en) * | 2019-07-25 | 2019-09-20 | 大连海洋大学 | A kind of unsteady flow speed circulation and the binary channels of the effective blowdown of bottom of pond enter streaming system |
| CN111280121A (en) * | 2020-03-27 | 2020-06-16 | 湖北龙感湖小蓝虾科技有限公司 | Shrimp culture pond uniform heating device |
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| CN206565110U (en) * | 2017-03-03 | 2017-10-20 | 北京市水产科学研究所 | A kind of salmonidae juvenile fish temporarily supports groove |
| CN206576097U (en) * | 2017-03-17 | 2017-10-24 | 胡伟红 | A kind of Chi Ban fishponds water circulating pump control device |
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| CN2585554Y (en) * | 2002-12-12 | 2003-11-12 | 河见电机工业股份有限公司 | Water flow circulation filtering breeding pool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109258548A (en) * | 2018-11-28 | 2019-01-25 | 中国海洋大学 | Modified parent population raises and train pond |
| CN110250088A (en) * | 2019-07-25 | 2019-09-20 | 大连海洋大学 | A kind of unsteady flow speed circulation and the binary channels of the effective blowdown of bottom of pond enter streaming system |
| CN110250088B (en) * | 2019-07-25 | 2021-08-13 | 大连海洋大学 | Double-channel inflow system for variable flow rate circulation and effective sewage discharge at pool bottom |
| CN111280121A (en) * | 2020-03-27 | 2020-06-16 | 湖北龙感湖小蓝虾科技有限公司 | Shrimp culture pond uniform heating device |
| CN111280121B (en) * | 2020-03-27 | 2022-03-22 | 湖北龙感湖小蓝虾科技有限公司 | Shrimp culture pond uniform heating device |
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