CN112219786A - Simple water changing device suitable for seedling raising pond and water changing method thereof - Google Patents
Simple water changing device suitable for seedling raising pond and water changing method thereof Download PDFInfo
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- CN112219786A CN112219786A CN202011188168.1A CN202011188168A CN112219786A CN 112219786 A CN112219786 A CN 112219786A CN 202011188168 A CN202011188168 A CN 202011188168A CN 112219786 A CN112219786 A CN 112219786A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 136
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005273 aeration Methods 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000006213 oxygenation reaction Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 8
- 238000009360 aquaculture Methods 0.000 description 6
- 244000144974 aquaculture Species 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 210000003437 trachea Anatomy 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 241000238557 Decapoda Species 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000000384 rearing effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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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
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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
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydroponics (AREA)
Abstract
The invention discloses a simple water changing device suitable for a seedling raising pool and a water changing method thereof, which are characterized by comprising a device main body, wherein the device main body is a bracket with a truncated cone-shaped structure, a mesh is coated outside the bracket, a PVC bottom plate is arranged on the bottom surface of the device main body, a drain pipe is arranged on the PVC bottom plate, the top opening of the PVC bottom plate penetrates through and is vertically fixed on the PVC bottom plate, and a nano aeration pipe which is annularly arranged along the edge of the PVC bottom plate is also arranged in the device main body; according to the scheme of the invention, the old water in the seedling culture pond is discharged at a constant speed through the drain pipe, the drain holes with the large upper part and the small lower part are arranged on the drain pipe, and aiming at water pressure change, the water pressure entering the drain pipe can be enabled to be consistent at each water level when water is changed, so that local pressure difference cannot be caused by rapid drainage, a large amount of bubbles generated by the nano aeration pipe are utilized to push away seedlings adsorbed on the meshes of the frustum-shaped device main body during drainage, and the damage and death rate of seedling culture in the drainage process are reduced.
Description
Technical Field
The invention belongs to the technical field of breeding and seedling raising tools, and relates to a simple water changing device suitable for a seedling raising pond and a water changing method thereof.
Background
In recent years, the aquaculture yield of Chinese aquatic products is 2/3 about the aquaculture yield of aquatic products in the world, and the Chinese aquaculture industry makes important contributions in the aspects of guaranteeing national food safety, expanding employment, increasing income of farmers, improving ecological environment of water areas and the like. In the process of aquaculture seedling, in order to ensure fresh water quality, water needs to be changed regularly. At present, it is more difficult to change water in aquaculture seedling production, and some water changing net cages are carried out, and use the water pump to drain water, and complex operation like this, the utensil cost of changing water is higher, and it is dead to lead to the seed to adsorb to appear on the net cage wall because of changing water improperly in addition at the drainage in-process. This leads to the problem that the aquatic seedlings are easy to die in the water draining device for water changing.
1. Chinese patent: an aquaculture seedling production water changing device and a water changing method thereof are disclosed in the application number: 201410313425.8, filing date: 2014.07.02, the invention relates to a water changing device which adopts a siphon device to make the device generate negative pressure and then the device is put into a seedling pool to be changed for siphon drainage, although the device has the function of reducing the death rate of seedlings in the drainage process, the device has the characteristics for achieving the purpose, which leads to the slowing of the drainage speed and the problem that the seedlings are still adsorbed on a filter cover.
2. Chinese patent: a siphon water changing method and device for a fry and shrimp fry rearing pond, which have the following application numbers: 201910243347.1, filing date: 2019.03.28, the invention relates to a siphon water changing device with a water suction port outside a large mesh net cylinder and covered with a small mesh filter screen cloth, which is connected with a siphon device through a plastic hose for siphon water drainage, but like the above patent, although the suction injury to the fry is reduced through the filter screen cloth, the water passing rate of the filter screen cloth is relatively poor, the drainage speed can be further reduced, and secondly, the fry can still swim to the vicinity of the drainage device based on the habit of the fish and the shrimp, and the fry is inevitably sucked to generate damage under the action of water pressure when approaching the drainage outlet.
Therefore, there is a need for a simple water exchange device with fast draining speed, reasonable structure, relative practicality and convenience.
Disclosure of Invention
Aiming at the defects of the method, the invention provides the simple water changing device suitable for the seedling raising pond and the water changing method thereof.
The technical scheme adopted by the invention for solving the technical problem is as follows: the simple water changing device is characterized by comprising a device main body in a cone frustum shape, wherein the device main body is provided with a support forming a device main body structure, meshes are coated outside the support, the top of the device main body is provided with an opening, the bottom of the device main body is provided with a PVC bottom plate, the device main body further comprises a drain pipe which is vertically fixed on the PVC bottom plate and penetrates through the device main body, and the lower end of the drain pipe is provided with an opening which is arranged at a water outlet of a seedling raising pool;
the device main body is internally provided with a nano aeration pipe which is annularly arranged along the outer edge of the PVC bottom plate, the nano aeration pipe is connected with a hollow air pipe, and the hollow air pipe is connected with a pipeline of an oxygenation air pump of a seedling culture pond.
As a further arrangement of the scheme, the bracket is made of fine steel, and the taper of the side edge of the bracket and the ground is 70-80 degrees.
As a further arrangement of the proposal, the device main body also comprises a drainage pipeline with a drainage valve, which is connected with the drainage pipeline.
As a further arrangement of the above scheme, a plurality of drain holes are arranged on the side wall of the drain pipe, the density of the drain holes is the same from top to bottom, and the hole diameter is gradually reduced.
As a further arrangement of the scheme, the device also comprises a temporary treatment pool which is connected with a drainage pipeline of the water outlet and used for separation and filtration, and the temporary treatment pool can also be used for filtering and taking out the seedlings when the pool is cleaned.
Through the setting of above-mentioned scheme, the water installation of trading of this scheme, arrange the pond of growing seedlings in back with drain pipe and delivery port intercommunication, connect the hollow trachea again on the trachea of the oxygenation air pump of growing seedlings the pond, close each big branch pneumatic valve, only open the pipeline of being connected with the water installation of trading, current equipment relatively, this device can push away through a large amount of bubbles of nanometer aeration pipe production and adsorb in the seedling on the water installation mesh, avoid the seedling to receive water pressure and adsorb the injury, speed through the drainage valve control drainage, the wash port size and density of drain pipe sets up, can let the water installation at the uniform velocity inhale and avoid the production of pressure differential, secondly the device major structure of frustum form sets up for ordinary cylinder or other shapes, can let the bubble push away the better of the function performance of seedling.
The application method of the simple water changing device suitable for the seedling raising pond comprises the following steps:
s1, selecting a device main body with a proper mesh size according to the individual sizes of the aquatic offspring seeds in different stages of production;
s2, inserting the lower end of a drain pipe of the device into a water outlet of a seedling raising pond, and connecting a hollow air pipe with an oxygen increasing air pump;
s3, when water is changed, opening a branch air valve of an oxygenation air pump connected with the nano aeration pipe, and selectively closing the rest air valves;
s4, opening a drain valve to drain the old water in the pool at a constant speed through a drain hole of a drain pipe, wherein the old water in the pool flows to a temporary disposal pool through a water outlet;
s5, in the period, the bubbles of the nano aeration pipe can disturb and drive away mesh seedlings coated on the outer side surface of the frustum shape of the device main body due to the water flow, so that the seedlings are prevented from being damaged by water pressure adsorption;
and S6, after the liquid level in the pond drops to a preset height, opening the water inlet pipe to adjust the water level in the pond by controlling the ratio of the water inlet amount to the water outlet amount, and finishing the replacement of the old water in the seedling pond.
Preferably, the control of the water inflow and water outflow can be measured by a liquid flow meter and controlled by a metering water valve.
Preferably, the water inlet pipe of the S6 is arranged far away from the water outlet as much as possible.
Has the advantages that: compared with the prior art, the scheme of the invention comprises the steps that 1, the nano aeration pipe is arranged, a large amount of bubbles are generated during water changing, the frustum-shaped device main body is combined, the generated bubbles are utilized to drive off the seedlings which are changed and absorbed by water pressure, the bubbles continuously wash out of meshes along the inner wall of the frustum and push away the seedlings absorbed on the meshes, and the seedlings are prevented from being damaged and killed by water pressure absorption; 2. the drain holes with large upper parts and small lower parts are arranged on the drain pipe, so that the water pressure entering the drain pipe can be consistent at each water level when water is changed according to the water pressure change of water flows with different heights, and the local pressure difference can not be caused by quick drainage; according to the scheme of the invention, the old water in the seedling culture pond is discharged at a constant speed through the drain valve, and based on the drain holes with large upper parts and small lower parts arranged on the drain pipes, the water flow pressure of the water flowing into the drain pipes can be consistent at each water level when water changing negative pressure is generated, so that the water changing device can drain water quickly even without local pressure difference, and secondly, a large amount of bubbles generated by the nano aeration pipe during water drainage push away seedlings adsorbed on the meshes of the frustum-shaped device main body, so that the damage and death rate of the seedlings during the water drainage process are reduced.
Drawings
FIG. 1 is a schematic structural diagram of the present embodiment;
fig. 2 is a schematic structural view of a water changing device according to an embodiment of the present disclosure.
Reference numerals: 1. a device main body; 11. a PVC base plate; 12. screening; 2. a nano aeration pipe; 21. a hollow air pipe; 23. a branch air valve; 3. a drain pipe; 32. a drain hole; 7. a water changing device; 8. a seedling raising pond; 9. a water outlet; 91. the pool is temporarily disposed of.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflicting with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
The simple water changing device suitable for the seedling raising pond is characterized by comprising a device main body 1 in a cone frustum shape, wherein the device main body 1 is provided with a support 13 forming a structure of the device main body 1, a mesh 12 is covered outside the support 13, the top of the device main body 1 is provided with an opening, the bottom of the device main body 1 is provided with a PVC bottom plate 11, the device further comprises a drain pipe 3 which is vertically fixed on the PVC bottom plate 11 and penetrates through the device main body 1, and the lower end opening of the drain pipe 3 is arranged at a water outlet 9 of the seedling raising pond 8;
the device main body 1 is internally provided with a nano aeration pipe 2 which is annularly arranged along the outer edge of the PVC bottom plate 11, the nano aeration pipe 2 is connected with a hollow air pipe 21, and the hollow air pipe 21 is connected with a pipeline of an oxygenation air pump 22 of a seedling culture pond.
As a further arrangement of the above scheme, the bracket 13 is made of fine steel, and the taper of the side edge of the bracket and the ground is 70-80 degrees.
As a further arrangement of the above solution, the device body 1 further includes a drain pipe with a drain valve connected to the drain pipe 3.
As a further arrangement of the above scheme, a plurality of drainage holes 32 are arranged on the side wall of the drainage pipe 3, and the drainage holes 32 have the same density from top to bottom, and the diameter of the drainage holes is gradually reduced.
As a further arrangement of the scheme, the device also comprises a temporary treatment tank 91 which is connected with a drainage pipeline of the water outlet 9 and is used for separation and filtration, and the temporary treatment tank 91 can also be used for filtering and taking out the seedlings when the tank is cleaned.
Through the setting of above-mentioned scheme, the water installation of trading of this scheme, arrange the pond of growing seedlings in back with drain pipe and delivery port intercommunication, connect the hollow trachea again on the trachea of the oxygenation air pump of growing seedlings the pond, close each big branch pneumatic valve, only open the pipeline of being connected with the water installation of trading, current equipment relatively, this device can push away through a large amount of bubbles of nanometer aeration pipe production and adsorb in the seedling on the water installation mesh, avoid the seedling to receive rivers water pressure and adsorb the injury, speed through the drainage valve control drainage, the wash port size and density of drain pipe sets up, can let the water installation at the uniform velocity inhale and avoid the production of pressure differential, secondly the device major structure of frustum form sets up for ordinary cylinder or other shapes, can let the better of the function performance that the bubble seedling pushed away.
According to the application method of the simple water changing device suitable for the seedling raising pond, the steps are as follows:
s1, selecting the device main body 1 with proper mesh size 12 according to the individual sizes of the aquatic offspring seeds in different stages of production;
s2, inserting the lower end of the drain pipe 3 of the device into the water outlet 9 of the seedling raising pond, and then connecting the hollow air pipe 21 with the oxygen increasing air pump 22;
s3, when water is changed, opening a branch air valve of an oxygenation air pump 22 connected with the nano aeration pipe 2, and selectively closing the rest air valves;
s4, opening the drain valve to drain the old water in the pool at a constant speed through the drain hole 31 of the drain pipe 3, and leading the old water in the pool to flow to the temporary disposal pool 91 through the water outlet 9;
s5, in the period, the bubbles of the nano aeration pipe 2 can disturb and drive off the seedlings of the meshes 12 coated on the outer side surface of the frustum shape of the device main body 1 due to the water flow, so that the seedlings are prevented from being damaged by water pressure adsorption;
and S6, after the liquid level in the pond drops to a preset height, opening the water inlet pipe to adjust the water level in the pond by controlling the ratio of the water inlet amount to the water outlet amount, and finishing the replacement of the old water in the seedling pond.
Preferably, the control of the water inflow and water outflow can be measured by a liquid flow meter and controlled by a metering water valve.
Preferably, the water inlet pipe of S6 is arranged as far away from the water outlet 9 as possible.
Through the arrangement of the scheme, the meshes can be arranged according to the body type changes of the seedlings in different growth stages, 2-3 different meshes are usually arranged for replacement in the whole seedling raising stage, and the replacement of the meshes only needs to take the nano aeration pipe and the air pipe out of the device and directly replace the prepared standard meshes; the device can be placed into a seedling pool after seedling culture begins, and is not required to be taken out when a mesh replacing stage is removed, so that the device is very convenient; the air valve, the nano aeration pipe and the mesh related in the invention can be purchased from the market.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. The simple water changing device suitable for the seedling raising pond is characterized by comprising a device main body (1) in a cone frustum shape, wherein the device main body (1) is provided with a support (13) forming a structure of the device main body (1), a mesh (12) is covered outside the support (13), the top of the device main body (1) is provided with an opening, the bottom of the device main body is provided with a PVC bottom plate (11), the device further comprises a drain pipe (3) which is vertically fixed on the PVC bottom plate (11) and penetrates through the device main body (1), and the lower end of the drain pipe (3) is provided with an opening and is arranged at a water outlet (9) of the seedling raising pond (8);
the device main body (1) is internally provided with a nano aeration pipe (2) which is annularly arranged along the outer edge of the PVC bottom plate (11), the nano aeration pipe (2) is connected with a hollow air pipe (21), and the hollow air pipe (21) is connected with a pipeline of an oxygenation air pump (22) of a seedling culture pond.
2. The simple water changing device applicable to the nursery pond as claimed in claim 1, which is characterized in that: the bracket (13) is made of refined steel, and the taper between the side edge of the bracket and the ground is 70-80 degrees.
3. The simple water changing device applicable to the nursery pond as claimed in claim 1, which is characterized in that: the device main body (1) also comprises a drainage pipeline with a drainage valve, which is connected with the drainage pipeline (3).
4. The simple water changing device applicable to the nursery pond as claimed in claim 1, which is characterized in that: the side wall of the drain pipe (3) is provided with a plurality of drain holes (32), the density of the drain holes (32) is the same from top to bottom, and the hole diameter is gradually reduced.
5. The simple water changing device applicable to the nursery pond as claimed in claim 1, which is characterized in that: the device also comprises a temporary disposal pool (91) which is connected with a drainage pipeline of the water outlet (9) and used for separation and filtration, wherein the temporary disposal pool (91) can also be used for filtering and taking out the seedlings when the pool is cleaned.
6. The water changing method of the simple water changing device for the nursery pond as claimed in claim 1, comprising the following steps:
s1, selecting a device main body (1) with a proper mesh (12) size according to the individual sizes of the aquatic offspring seeds in different stages of production;
s2, inserting the lower end of a drain pipe (3) of the device into a water outlet (9) of a seedling raising pool, and then connecting a hollow air pipe (21) with an oxygen increasing air pump (22);
s3, when water is changed, opening a branch air valve of an oxygenation air pump (22) connected with the nano aeration pipe (2), and selectively closing the rest air valves;
s4, opening a drain valve to drain the old water in the pool at a constant speed through a drain hole (31) of the drain pipe (3), wherein the old water in the pool flows to the temporary disposal pool (91) through a water outlet (9);
s5, in the period, the bubbles of the nano aeration pipe (2) can disturb and drive off the seedlings of the meshes (12) which are coated on the frustum-shaped outer side surface of the device main body (1) because of water flow, so that the seedlings are prevented from being damaged by water pressure adsorption;
and S6, after the liquid level in the pond drops to a preset height, opening the water inlet pipe to adjust the water level in the pond by controlling the ratio of the water inlet amount to the water outlet amount, and finishing the replacement of the old water in the seedling pond.
7. The application method of the simple water changing device suitable for the nursery pond as claimed in claim 6, wherein the simple water changing device comprises the following steps: the water inflow and water outflow can be controlled by measuring through a liquid flow meter and controlling through a metering water valve.
8. The method for using the simple water changing device for the nursery pond as claimed in claim 6, wherein the water inlet pipe of the S6 is arranged as far away from the water outlet (9) as possible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011188168.1A CN112219786A (en) | 2020-10-30 | 2020-10-30 | Simple water changing device suitable for seedling raising pond and water changing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011188168.1A CN112219786A (en) | 2020-10-30 | 2020-10-30 | Simple water changing device suitable for seedling raising pond and water changing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114041440A (en) * | 2021-11-10 | 2022-02-15 | 广东海洋大学 | Early water supply and drainage device for seedling cultivation |
| WO2023109474A1 (en) * | 2021-12-15 | 2023-06-22 | 浙江海洋大学 | Water replacement device for larval aquaculture |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114041440A (en) * | 2021-11-10 | 2022-02-15 | 广东海洋大学 | Early water supply and drainage device for seedling cultivation |
| CN114041440B (en) * | 2021-11-10 | 2022-05-27 | 广东海洋大学 | Early water supply and drainage device for seedling cultivation |
| WO2023109474A1 (en) * | 2021-12-15 | 2023-06-22 | 浙江海洋大学 | Water replacement device for larval aquaculture |
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Application publication date: 20210115 |