CN109220971B - Oxygenation equipment for aquaculture - Google Patents
Oxygenation equipment for aquaculture Download PDFInfo
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- CN109220971B CN109220971B CN201811155025.3A CN201811155025A CN109220971B CN 109220971 B CN109220971 B CN 109220971B CN 201811155025 A CN201811155025 A CN 201811155025A CN 109220971 B CN109220971 B CN 109220971B
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- inner sleeve
- sleeve
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- 238000006213 oxygenation reaction Methods 0.000 title claims abstract description 37
- 238000009360 aquaculture Methods 0.000 title claims abstract description 29
- 244000144974 aquaculture Species 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 238000005187 foaming Methods 0.000 claims abstract description 62
- 241000251468 Actinopterygii Species 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 239000001301 oxygen Substances 0.000 claims description 22
- 229910052760 oxygen Inorganic materials 0.000 claims description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 230000005587 bubbling Effects 0.000 claims description 14
- 230000007704 transition Effects 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 239000006260 foam Substances 0.000 description 5
- 238000005273 aeration Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000009469 supplementation Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; 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)
- Farming Of Fish And Shellfish (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention relates to an oxygenation device for aquaculture, which solves the problems of complex structure, low oxygenation speed and poor oxygenation effect of the existing oxygenation device. The device is arranged in a fishpond and comprises an outer sleeve, the upper end of the outer sleeve is open, the lower end of the outer sleeve is closed, an inner sleeve is arranged in the outer sleeve, the inner sleeve is in a conical barrel shape, an annular water outlet channel is arranged between the outer sleeve and the inner sleeve, the upper end of the inner sleeve is connected with a fishpond water replenishing pipe and/or a gas transmission device, a foaming gap is formed between the lower end of the inner sleeve and the lower end of the outer sleeve, a radial shaft is arranged at the lower end of the outer sleeve, and a foaming body. The invention has the advantages of simple structure, ideal oxygenation effect, no influence on fishes, and flexible oxygenation by air and water.
Description
Technical Field
The invention belongs to the technical field of aquaculture, and particularly relates to an oxygenation device for aquaculture.
Background
Aquaculture is an important field in agricultural and sideline industries, Chinese aquaculture, particularly pond fish culture, is at the front end of the world in terms of total yield, culture area or average unit yield of concentrated continuous fishponds, people need to pay attention to the change of water quality in fishponds at any time in order to better use water to culture aquatic products, particularly to pay attention to whether oxygen deficiency exists in water, so that the existence of an oxygen increasing mechanism in the fishponds is particularly important. The current oxygen-increasing machine mainly has impeller formula structure and waterwheel formula structure, impeller formula oxygen-increasing machine passes through the high-speed rotation of motor drive impeller, through the method of impeller violent vibration to water, make aquatic sneak into oxygen, realize the purpose to water oxygenation, waterwheel formula oxygen-increasing machine, carry out the oxygenation on the surface of water through raising most water, but the majority of current waterwheel formula oxygen-increasing machine adopts the motor of vertical setting to drive, and through setting up speed reducer and transmission reversing mechanism, thereby make and rotate for the perpendicular impeller that sets up of surface of water, the mechanism is complicated, and the fault rate is higher, be difficult to make the effect that the water circulation flows a bit, still there is the problem of low efficiency, large-scale oxygenation equipment even a bit, it has very big ground noise or vibrations, produce the surprise to the fish, influence output, cause the effect of doing things with the offence.
In order to solve the defects of the prior art, people have long searched for and put forward various solutions. For example, the chinese patent document discloses an aquaculture pond oxygenation device [201810228054.1], including oxygenation device, control box, control button, display screen, shower nozzle, oxygenation agent charge door, connecting rod, circular kickboard, inlet tube, connecting plate, stable end, bolt, oxygenation device upper end is equipped with control box and shower nozzle, control box and shower nozzle lower extreme terminal surface and oxygenation device up end are connected, oxygenation agent charge door locates the oxygenation device up end, oxygenation device is connected with the connecting rod, the connecting rod totally four, the connecting rod distributes around oxygenation device side.
The problems of low oxygenation speed and poor oxygenation effect of the oxygenation equipment are solved to a certain extent by the scheme, but the scheme still has a plurality of defects, for example, because the volume is large, the oxygenation equipment is not easy to move, the structure is complex, and the life of fish is inevitably influenced when the oxygenation equipment works.
Disclosure of Invention
Aiming at the problems, the invention provides the aeration equipment for aquaculture, which has the advantages of reasonable design, simple structure, ideal aeration effect, no influence on fishes, and flexible aeration by using air and water.
In order to achieve the purpose, the invention adopts the following technical scheme: the oxygenation equipment for aquaculture is arranged in a fishpond, and comprises an outer sleeve which is arranged at the bottom of the fishpond along the vertical direction and is in a conical cylinder shape, the upper end of the outer sleeve is open, the lower end of the outer sleeve is closed, the upper end of the outer sleeve does not exceed the water surface of the fishpond, the diameter of the upper end of the outer sleeve is gradually increased to the diameter of the lower end of the outer sleeve, an inner sleeve which is coaxially arranged with the outer sleeve and is in a conical cylinder shape is arranged in the outer sleeve through a pipe body positioning structure, the diameter of the upper end of the inner sleeve is gradually decreased to the diameter of the lower end of the inner sleeve, an annular water outlet channel is formed between the outer sleeve and the inner sleeve, the upper end of the inner sleeve is open and extends to the outer side of the outer sleeve, the upper end of the inner sleeve is connected with, the inner part of the lower end of the outer sleeve is radially provided with a radial shaft, a plurality of foaming bodies which are hollow and provided with a plurality of foaming micropores are arranged on the radial shaft in a circumferential rotation manner, and the foaming bodies correspond to the lower end of the inner sleeve respectively. When water enters the inner sleeve, the inner sleeve in the cone cylinder shape enables water flow to impact the foaming body more violently, the foaming body rotates faster, more generated bubbles directly act on water through the annular water outlet channel, the oxygen increasing amount of the fishpond is more, and when air is introduced, the foaming body is driven to rotate, so that more oxygen in the air is dissolved in the water.
In the above aerator for aquaculture, the lower end of the outer sleeve is provided with the arc-shaped part, and the arc-shaped part forms the arc-shaped transition part at the inner side of the bottom of the outer sleeve, so that water flow or bubbles can better circulate, and the pressure of the water flow on the outer sleeve is relieved.
In the above oxygen increasing equipment for aquaculture, the inner sleeve is circumferentially provided with spiral water guide raised lines which are spirally distributed, and the spiral water guide raised lines extend from the upper end to the lower end of the inner sleeve. The water guide raised lines are matched with the conical inner sleeve to enable water flow to generate strong impact force with rotation, and the foaming body rotates faster.
In the above-mentioned oxygen increasing equipment for aquaculture, the bubbling body include with radial axis circumferential direction rotate the hollow base that links to each other and be annular, hollow base on be equipped with a plurality of spliced eyes, and the spliced eye in peg graft respectively and have the orientation not equidirectional extension set up and be hollow form foaming convex part, foaming convex part on be equipped with a plurality of and foaming convex part inside the foaming micropore that communicates respectively to make the bubbling body can utilize river water to produce the bubble furthest.
In the oxygenation equipment for aquaculture, four foaming convex parts are arranged on each hollow base, and the foaming convex parts are uniformly arranged on the circumferential outer side of the hollow base. The foaming convex parts are uniformly arranged, so that the phenomenon of blockage caused by uneven pressure on the foaming body is avoided.
In the above oxygen increasing equipment for aquaculture, the foaming convex parts are columnar, the size and the shape of each foaming convex part are the same, the size of the outer ends of the foaming convex parts is larger than that of the inner ends of the foaming convex parts, and the surfaces of the foaming convex parts are in arc smooth transition, so that a large amount of bubbles can be rapidly and uniformly generated by the foaming parts.
In foretell oxygen equipments for aquaculture, body location structure include the connecting rod in the outside of a plurality of settings in outer tube circumference, connecting rod one end and interior sleeve pipe link to each other, the other end is connected at outer tube circumference inner wall. The connecting rod ensures that the outer sleeve and the inner sleeve cannot deviate due to larger water flow impact force.
In the above oxygenation equipment for aquaculture, the two sides of the hollow base are respectively and correspondingly provided with the mounting holes, the radial shaft penetrates through the mounting holes, the waterproof bearings are arranged between the mounting holes and the radial shaft, the radial shaft ensures that the bubbling body cannot be dislocated due to water impact, and the waterproof bearings enable the bubbling body to operate reliably.
In the above oxygen increasing equipment for aquaculture, the diameter of the upper end of the annular water outlet channel is gradually increased to the diameter of the lower end of the annular water outlet channel, so that bubbles are broken at the narrow opening, oxygen is dissolved in water and is diffused outwards to increase the oxygen increasing range.
In the above mentioned oxygen increasing equipment for aquaculture, the outer sleeve is provided with a first annular water distribution plate at the outer circumferential side of the upper end and extending upwards in an inclined manner, the diameter of one end of the first annular water distribution plate connected with the outer sleeve pipe is gradually increased from the diameter of the other end of the first annular water distribution plate connected with the outer sleeve pipe, and the circumferential outer side of the upper end of the inner sleeve positioned at the outer side of the outer sleeve is provided with a second annular water distribution plate which is annular and extends upwards in an inclined way, the diameter of one end of the second annular water distribution plate connected with the inner sleeve pipe is gradually increased from the diameter of the other end of the second annular water distribution plate connected with the inner sleeve pipe, and an annular water distribution channel communicated with the annular water outlet channel is formed between the first annular water distribution plate and the second annular water distribution plate, and the diameter of the annular water distribution channel is gradually increased from the inner side to the outer side close to the annular water outlet channel, so that bubbles are dissolved in water and then are quickly and dispersedly discharged into the fishpond.
Compared with the prior art, the invention has the advantages that: the conical inner sleeve pipe enables water flow impact to be large, more bubbles are generated, and the oxygenation effect is good; the structure is simple, and the movement and the maintenance are convenient; the outer sleeve has a certain damping effect, and free movement of the fish cannot be influenced; the upper end of the inner sleeve can be connected with a water replenishing pipe or a gas transmission device, and certain water replenishing can be realized while oxygen replenishing is carried out on the fishpond.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a schematic structural view of the foam of the present invention;
in the figure, a fishpond 1, an outer sleeve 2, an arc transition part 21, a first annular water distribution plate 22, a second annular water distribution plate 23, an annular water distribution channel 24, a pipe body positioning structure 3, a connecting rod 31, an inner sleeve 4, a spiral water guide convex strip 41, an annular water outlet channel 5, a foaming gap 6, a radial shaft 7, a foaming body 8, a foaming micropore 81, a hollow base 82, an inserting hole 83, a foaming convex part 84, a mounting hole 85 and a waterproof bearing 86.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in figures 1-2, the oxygen increasing device for aquaculture is arranged in a fish pond 1, the device comprises an outer sleeve 2 which is arranged at the bottom of the fish pond 1 along the vertical direction and is in a conical cylinder shape, the upper end of the outer sleeve 2 is opened, the lower end of the outer sleeve is closed, the upper end of the outer sleeve 2 does not exceed the water surface of the fish pond 1, the diameter of the upper end of the outer sleeve 2 is gradually increased to the diameter of the lower end of the outer sleeve, an inner sleeve 4 which is coaxially arranged with the outer sleeve 2 and is in a conical cylinder shape is arranged in the outer sleeve 2 through a pipe body positioning structure 3, the diameter of the upper end of the inner sleeve 4 is gradually decreased to the diameter of the lower end of the inner sleeve 4, an annular water outlet channel 5 is formed between the outer sleeve 2 and the inner sleeve 4, the upper end of the inner sleeve 4 is opened and extends to the outer, the inner part of the lower end of the outer sleeve 2 is radially provided with a radial shaft 7, a plurality of bubbling bodies 8 which are hollow and provided with a plurality of bubbling micropores 81 are arranged on the radial shaft 7 in a circumferential rotating manner, and the bubbling bodies 8 respectively correspond to the lower end of the inner sleeve 4. When water enters the inner sleeve 4, the inner sleeve 4 in the shape of a cone cylinder enables water flow to impact the bubbling body 8 more violently, the bubbling body 8 rotates faster, more generated bubbles directly act on water through the annular water outlet channel 5, the oxygen increasing amount of the fishpond 1 is more, and when air is introduced, the bubbling body 8 is driven to rotate, so that more oxygen in the air is dissolved in the water.
Specifically, outer tube 2 lower extreme has arc portion, and arc portion forms arc transition portion 21 at outer tube 2 bottom inboard, makes rivers or bubble circulate better, has slowed down outer tube 2 and has received the pressure of rivers.
Further, the inner tube 4 is circumferentially provided with spiral water guiding ribs 41 distributed spirally, and the spiral water guiding ribs 41 extend from the upper end to the lower end of the inner tube 4. The water guide convex strips 41 are matched with the conical inner sleeve 4 to enable the water flow to generate strong impact force with rotation, so that the foaming body 8 rotates faster.
Specifically, the foaming body 8 comprises a hollow base 82 which is connected with the radial shaft 7 in a circumferential rotation manner and is annular, a plurality of insertion holes 83 are formed in the hollow base 82, foaming convex parts 84 which are arranged in a hollow manner and extend towards different directions are respectively inserted into the insertion holes 83, and a plurality of foaming micropores 81 which are communicated with the inside of the foaming convex parts 84 are respectively formed in the foaming convex parts 84, so that the foaming body 8 can utilize river water to generate bubbles to the maximum extent.
Preferably, four bubbling protrusions 84 are provided on each hollow base 82, and the bubbling protrusions 84 are uniformly disposed on the circumferential outer side of the hollow base 82. The foam protrusions 84 are uniformly arranged, so that the phenomenon of blockage caused by uneven pressure on the foam body 8 is avoided.
Obviously, the foaming protrusions 84 are cylindrical and each of the foaming protrusions 84 has the same size and shape, the size of the outer end of the foaming protrusion 84 is larger than that of the inner end of the foaming protrusion 84, and the surface of the foaming protrusion 84 is in arc-shaped smooth transition, so that the foaming body 8 can generate a large amount of bubbles rapidly and uniformly.
Visibly, the tube positioning structure 3 comprises a plurality of connecting rods 31 arranged on the circumferential outer side of the inner sleeve 4, one end of each connecting rod 31 is connected with the inner sleeve 4, and the other end of each connecting rod 31 is connected to the circumferential inner wall of the outer sleeve 2. The connecting rods 31 ensure that the outer sleeve 2 and the inner sleeve 4 do not deflect due to the large water flow impact force.
Specifically, the two sides of the hollow base 82 are respectively and correspondingly provided with the mounting holes 85, the radial shaft 7 penetrates through the mounting holes 85, the waterproof bearings 86 are arranged between the mounting holes 85 and the radial shaft 7, the radial shaft 7 ensures that the foam body 8 cannot be dislocated due to water impact, and the waterproof bearings 86 enable the foam body 8 to operate reliably.
Preferably, the diameter of the upper end of the annular water outlet channel 5 is gradually increased to the lower end, so that bubbles are broken at the narrow opening, oxygen is dissolved in water and is diffused outwards to enlarge the oxygenation range.
Furthermore, the outer circumferential side of the upper end of the outer sleeve 2 is provided with a first annular water distribution plate 22 which is annular and extends obliquely upwards, the diameter of one end of the first annular water distribution plate 22 connected with the outer sleeve 2 gradually increases from the diameter to the diameter of the other end of the first annular water distribution plate, the outer circumferential side of the upper end of the inner sleeve 4 positioned outside the outer sleeve 2 is provided with a second annular water distribution plate 23 which is annular and extends obliquely upwards, the diameter of one end of the second annular water distribution plate 23 connected with the inner sleeve 4 gradually increases from the diameter to the diameter of the other end of the second annular water distribution plate, an annular water distribution channel 24 communicated with the annular water outlet channel 5 is formed between the first annular water distribution plate 22 and the second annular water distribution plate 23, and the annular water distribution channel 24 is close to the inner diameter of the annular water outlet channel 5 and gradually increases from the inner.
The principle of the embodiment is as follows: when the fishpond 1 needs oxygen supplementation, water enters the inner sleeve 4 through water supplementation equipment to drive the foaming body 8 to rotate to generate bubbles, the conical cylindrical inner sleeve 4 enables water flow to impact the foaming body 8 more violently, the spiral water guide raised lines 41 enable the water flow to have rotatability, the foaming body 8 rotates faster, more bubbles are generated, the bubbles directly act on the water through the annular water outlet channel 5, the aerobic water is dispersedly discharged into the fishpond 1 through the annular water distribution channel 24, and the fishpond 1 is supplemented with water during oxygen supplementation; when the fishpond 1 needs no water supply or the fishpond 1 is inconvenient to be oxygenated in a water inlet mode, air can be introduced into the upper end of the inner casing 4 through an air compressor or other air transmission equipment, at the moment, the air can drive the water in the fishpond 1 to rotate the foaming body 8, bubbles are generated, the air is better dissolved in the water, flows through the annular water outlet channel 5 and is diffused in the fishpond 1 through the annular water distribution channel 24.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms of the fishpond 1, the outer sleeve 2, the arc-shaped transition part 21, the first annular water distribution plate 22, the second annular water distribution plate 23, the annular water distribution channel 24, the pipe positioning structure 3, the connecting rod 31, the inner sleeve 4, the spiral water guide convex strip 41, the annular water outlet channel 5, the foaming gap 6, the radial shaft 7, the foaming body 8, the foaming micropores 81, the hollow base 82, the inserting hole 83, the foaming convex part 84, the mounting hole 85, the waterproof bearing 86 and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (9)
1. An oxygen increasing device for aquaculture is arranged in a fish pond (1), and is characterized by comprising an outer sleeve (2) which is arranged at the bottom of the fish pond (1) along the vertical direction and is in a conical cylinder shape, wherein the upper end of the outer sleeve (2) is open, the lower end of the outer sleeve is closed, the upper end of the outer sleeve (2) does not exceed the water surface of the fish pond (1), the diameter of the upper end of the outer sleeve (2) gradually increases from the diameter to the diameter of the lower end of the outer sleeve, an inner sleeve (4) which is coaxial with the outer sleeve (2) and is in a conical cylinder shape is arranged in the outer sleeve (2) through a pipe body positioning structure (3), the diameter of the upper end of the inner sleeve (4) gradually decreases from the diameter to the diameter of the lower end, an annular water outlet channel (5) is formed between the outer sleeve (2) and the inner sleeve (4), the upper end of the inner sleeve (, the upper end of the inner sleeve (4) is connected with a fishpond water replenishing pipe and/or a gas transmission device, a foaming gap (6) is formed between the lower end of the inner sleeve (4) and the lower end of the outer sleeve (2), a radial shaft (7) is radially arranged in the lower end of the outer sleeve (2), a plurality of hollow foaming bodies (8) with a plurality of foaming micropores (81) are circumferentially and rotatably arranged on the radial shaft (7), and the foaming bodies (8) respectively correspond to the lower end of the inner sleeve (4); the foaming body (8) comprises a hollow base (82) which is connected with the radial shaft (7) in a circumferential rotating mode and is annular, a plurality of inserting holes (83) are formed in the hollow base (82), foaming convex parts (84) which extend towards different directions and are hollow are respectively inserted into the inserting holes (83), and a plurality of foaming micropores (81) which are communicated with the inner parts of the foaming convex parts (84) are respectively formed in the foaming convex parts (84).
2. The aquaculture oxygenation device of claim 1, wherein the lower end of the outer casing (2) has an arcuate portion, and the arcuate portion forms an arcuate transition (21) inside the bottom of the outer casing (2).
3. The aquaculture oxygen increasing equipment according to claim 2, wherein spiral water guiding convex strips (41) are arranged on the circumferential direction of the inner sleeve (4) in a spiral distribution mode, and the spiral water guiding convex strips (41) extend from the upper end to the lower end of the inner sleeve (4).
4. The aquaculture oxygenation device of claim 1, 2 or 3, wherein four bubbling projections (84) are provided on each hollow base (82), and the bubbling projections (84) are uniformly disposed on the circumferential outer side of the hollow base (82).
5. The aquaculture oxygenation device of claim 4, wherein the foaming protrusions (84) are cylindrical, the size and the shape of each foaming protrusion (84) are the same, the size of the outer end of each foaming protrusion (84) is larger than that of the inner end of each foaming protrusion (84), and the surfaces of the foaming protrusions (84) are in arc smooth transition.
6. The oxygen increasing equipment for aquaculture according to claim 1, wherein the tube positioning structure (3) comprises a plurality of connecting rods (31) arranged on the circumferential outer side of the inner sleeve (4), one end of each connecting rod (31) is connected with the inner sleeve (4), and the other end of each connecting rod is connected with the circumferential inner wall of the outer sleeve (2).
7. The aquaculture oxygenation device of claim 4, wherein the hollow base (82) is correspondingly provided with mounting holes (85) on two sides respectively, the radial shaft (7) penetrates through the mounting holes (85), and a waterproof bearing (86) is arranged between the mounting holes (85) and the radial shaft (7).
8. The aquaculture oxygenation device of claim 1, wherein the diameter of the upper end of the annular water outlet channel (5) is gradually increased from the lower end to the upper end.
9. The aquaculture oxygenation device according to claim 8, characterized in that a first annular water distribution plate (22) extending obliquely and upwardly is disposed on the outer circumferential side of the upper end of the outer sleeve (2) near the bank, the diameter of the end of the first annular water distribution plate (22) connected to the outer sleeve (2) gradually increases from the diameter to the diameter of the other end, a second annular water distribution plate (23) extending obliquely and upwardly is disposed on the outer circumferential side of the upper end of the inner sleeve (4) located on the outer side of the outer sleeve (2), the diameter of the end of the second annular water distribution plate (23) connected to the inner sleeve (4) gradually increases from the diameter to the diameter of the other end, and an annular water distribution channel (24) communicated with the annular water outlet channel (5) is formed between the first annular water distribution plate (22) and the second annular water distribution plate (23), and the diameter of the annular water distribution channel (24) is gradually increased from the inner side to the outer side close to the annular water outlet channel (5).
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| CN201811155025.3A CN109220971B (en) | 2018-09-30 | 2018-09-30 | Oxygenation equipment for aquaculture |
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| CN201811155025.3A CN109220971B (en) | 2018-09-30 | 2018-09-30 | Oxygenation equipment for aquaculture |
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| CN110754415A (en) * | 2019-06-06 | 2020-02-07 | 南京擅水科技有限公司 | Star-shaped edge-angle type transportation nano aerator |
| CN111758660B (en) * | 2020-06-30 | 2022-04-15 | 盐城工业职业技术学院 | Aquaculture uniform aeration culture tank adopting Roots blower unit |
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| CN109220971A (en) | 2019-01-18 |
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Denomination of invention: Oxygenation equipment for aquaculture Effective date of registration: 20220714 Granted publication date: 20210601 Pledgee: Zhejiang Zhuji Rural Commercial Bank Co.,Ltd. Jinan sub branch Pledgor: Zhuji Huachuang Chemical Fiber Co.,Ltd. Registration number: Y2022980010473 |
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