CN108513945B - Fishery aerator based on volute type centrifugal fan and using method thereof - Google Patents
Fishery aerator based on volute type centrifugal fan and using method thereof Download PDFInfo
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- CN108513945B CN108513945B CN201810319576.2A CN201810319576A CN108513945B CN 108513945 B CN108513945 B CN 108513945B CN 201810319576 A CN201810319576 A CN 201810319576A CN 108513945 B CN108513945 B CN 108513945B
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- 238000000034 method Methods 0.000 title claims description 11
- 238000005276 aerator Methods 0.000 title claims description 4
- 239000007789 gas Substances 0.000 claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000002347 injection Methods 0.000 claims abstract description 41
- 239000007924 injection Substances 0.000 claims abstract description 41
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000001301 oxygen Substances 0.000 claims abstract description 29
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 29
- 239000006260 foam Substances 0.000 claims abstract description 20
- 239000002002 slurry Substances 0.000 claims abstract description 19
- 230000001965 increasing effect Effects 0.000 claims abstract description 12
- 230000036544 posture Effects 0.000 claims abstract description 12
- 238000009395 breeding Methods 0.000 claims abstract description 4
- 230000001488 breeding effect Effects 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 15
- 238000004090 dissolution Methods 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 9
- 230000001174 ascending effect Effects 0.000 claims description 8
- 230000005587 bubbling Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 6
- 241000251468 Actinopterygii Species 0.000 claims description 4
- 238000006213 oxygenation reaction Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 206010021143 Hypoxia Diseases 0.000 claims description 3
- 230000005574 cross-species transmission Effects 0.000 claims description 2
- 230000001706 oxygenating effect Effects 0.000 claims 1
- 230000000630 rising effect Effects 0.000 abstract description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005086 pumping Methods 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)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention discloses a fishery oxygen increasing machine based on a volute type centrifugal fan, which comprises a hard collecting barrel, a foam collecting umbrella immersed in breeding water and a hard gas injection pipe, wherein the hard collecting barrel is provided with a plurality of spiral grooves; the rigid collecting barrel in the vertical posture is of a vertically-through tubular structure, and a vertically-through bubble concentration channel is arranged in the barrel of the rigid collecting barrel; the lower end of the foam collecting umbrella is in a bell-shaped flaring cover body structure, the foam collecting umbrella is coaxial with the lower end of the hard current collecting barrel, the upper end of the foam collecting umbrella is communicated with the hard current collecting barrel, the hard gas injection pipes in a plurality of vertical postures are distributed on the outer side of the hard current collecting barrel, and the hard gas injection pipes in the plurality of vertical postures are distributed along the hard current collecting barrel in a circumferential array manner; the lower end of each hard gas injection pipe penetrates through the umbrella surface of the foam collecting umbrella; the invention has simple structure, adopts the structure of the bubble collecting umbrella, utilizes the flow energy generated by the rising of bubbles, and leads the water at the air leakage hole on the air emitting head to be in a flowing state all the time by the continuous rotation of the rotating slurry.
Description
Technical Field
The invention belongs to the field of fishery culture, and particularly relates to a fishery aerator based on a volute type centrifugal fan and a use method thereof.
Background
In fishery aquaculture field, if the great condition of breed density under the pond water body can have the oxygen deficiency phenomenon, and then cause the problem of a large amount of deaths of fish, consequently need the oxygen-increasing machine, current oxygen-increasing machine has the consumed power big, and the noise is big, and splash splashes and causes drawbacks such as influence roadside pedestrian.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the fishery oxygen increasing machine based on the volute type centrifugal fan and the using method thereof, wherein the fishery oxygen increasing machine is low in noise and strong in oxygen increasing effect.
The technical scheme is as follows: in order to achieve the aim, the fishery oxygen increasing machine based on the volute type centrifugal fan comprises a hard collecting cylinder, a bubble collecting umbrella immersed in the breeding water and a hard gas injection pipe;
the rigid collecting barrel in the vertical posture is of a vertically-through tubular structure, and a vertically-through bubble concentration channel is arranged in the barrel of the rigid collecting barrel; the lower end of the foam collecting umbrella is in a bell-shaped flaring cover body structure, the foam collecting umbrella is coaxial with the lower end of the hard current collecting barrel, the upper end of the foam collecting umbrella is communicated with the hard current collecting barrel, the hard gas injection pipes in a plurality of vertical postures are distributed on the outer side of the hard current collecting barrel, and the hard gas injection pipes in the plurality of vertical postures are distributed along the hard current collecting barrel in a circumferential array manner; the lower end of each hard gas injection pipe penetrates through the umbrella surface of the foam collecting umbrella;
the gas cap is a cylindrical cavity structure with the diameter larger than that of the hard gas injection pipe; the lower end of each hard gas injection pipe is connected with a gas emitting head in a conduction mode, each gas emitting head and the corresponding hard gas injection pipe are coaxially arranged, and the upper end of each gas emitting head is provided with a plurality of gas leakage holes distributed in an annular array mode; the air bubbles emerging from the air leakage holes on the air effusing heads float up to the inner side of the cover body of the bubble collecting umbrella.
The device further comprises a first air guide pipe, a second air guide pipe, a hollow floating ring, a volute type centrifugal fan and a gas shunt ring;
the hollow floating ring is of a hard hollow annular ring-shaped structure, and an annular transition air cavity is formed inside the hollow floating ring; the air outlet end of the volute type centrifugal fan is communicated with the transition air cavity through a first air guide pipe; the gas shunt ring is of an annular hollow box structure, and a coaxial annular shunt inner cavity is formed in the gas shunt ring; the annular shunting inner cavity is communicated and connected with the transition air cavity through a second air guide pipe; the volute type centrifugal fan is arranged above the hollow floating ring, and the gas shunt ring is coaxially arranged below the hollow floating ring; the upper ends of the hard gas injection pipes are communicated with the annular shunting inner cavity together;
the upper end of the hard flow collecting cylinder is fixedly connected with the gas shunt ring coaxially, and the upper end of the bubble concentration channel penetrates out of the upper end of the gas shunt ring.
The upper end of the L-shaped connecting arm is fixedly connected with the hollow floating ring, and the lower end of the L-shaped connecting arm is fixedly connected with the outer wall of the hard collecting barrel; the mounting fan platform is mounted above the hollow floating ring through two supporting stand columns in a supporting mode, a volute type centrifugal fan is mounted on the fan platform, blades of the volute type centrifugal fan and the hollow floating ring are arranged coaxially, and an air inlet of the volute type centrifugal fan faces upwards vertically.
Further, the device also comprises a floating disc, a rotating rod, a rotating slurry, a suspension line and a counterweight;
the floating disc is of a circular floater structure which is coaxial with the hollow floating ring, and is positioned in an area enclosed by the inner ring of the hollow floating ring; a plurality of vertical rectangular blades are arranged on the circumferential outer wall of the hollow floating ring, an anti-splash disc is coaxially arranged at the upper end of the floating ring, a gap is arranged between the disc outline of the anti-splash disc and the inner ring of the hollow floating ring, each rectangular blade is distributed in an annular array along the axis of the floating ring, and a gap is arranged between the transverse tail end of each rectangular blade and the inner ring of the hollow floating ring;
the rotating rod coaxially penetrates through the bubble concentration channel, and the outer diameter of the rotating rod is smaller than the inner diameter of the bubble concentration channel; the upper end of the rotating rod is fixedly connected with the floating disc coaxially, the lower end of the rotating rod is fixedly connected with the rotating pulp through a connecting part, the rotating pulp is of a vertically arranged rectangular plate body structure, and a plurality of hollowed holes are formed in the rectangular plate body of the rotating pulp in a rectangular array; the height of the slurry rotating head is lower than that of the air leakage holes on the air bubbling heads; the lower end of the rotary slurry is connected with a suspension line, and the lower end of the suspension line is connected with the counterweight; four groups of passive fan blades are fixedly arranged on the rotating rod at equal intervals along the axis direction; and four groups of passive fan blades are positioned in the bubble concentration channel; the ascending air flow or water flow in the bubble concentration channel can drive four groups of driven fan blades and drive the rotating rod to synchronously rotate;
the bubble concentration channel is characterized by further comprising a rotating rod limiting ring, wherein the rotating rod limiting ring is coaxially arranged in the bubble concentration channel, the rotating rod can rotatably penetrate through the rotating rod limiting ring, and the rotating rod limiting ring is fixedly supported and connected with the inner wall of the bubble concentration channel through a supporting part; wherein the rotating rod is in clearance fit with the rotating rod limiting ring.
Further, when the hollow floating ring and the floating plate float on the water surface, the height of the lower end of the floating plate is 3-6 cm lower than that of the lower end of the hollow floating ring, and the height of the rotating slurry is 8-12 cm lower than that of the air leakage hole on each air emitting head when the volute type centrifugal fan is in an open state.
Further, a method for using the fishery oxygen increasing machine based on the volute type centrifugal fan is characterized in that the device is flatly placed in water of a fish pond, the hollow floating ring and the floating plate are in a floating state, and parts on the lower side of the hollow floating ring and the floating plate are immersed below the water surface of the pond; at the moment, a volute type centrifugal fan is started to enable a transition air cavity to generate strong positive pressure, and meanwhile, due to the fact that gas in the transition air cavity rapidly gushes in and out, the transition air cavity generates air whistling sound, the hollow floating ring generates high-frequency vibration, strong positive pressure is formed in a shunting inner cavity, and water in the shunting inner cavity is discharged from air leakage holes in air emitting heads through a hard air injection pipe under the action of air pressure; and then the shunting inner cavity forms a cavity, because the volute type centrifugal fan is still in an open state, the air compressed in the shunting inner cavity is shunted to each hard air injection pipe under the action of air pressure, and then the air is blown out in a bubble form through the air leakage holes on each air blowing head, the formed bubbles are fully contacted with the water in the pond, the oxygen contained in the bubbles is partially dissolved in the water, and further the effect of enriching the oxygen for the water in the pond is achieved, the bubbles are largely blown out along with the air leakage holes on the air blowing heads, and each bubble quickly floats upwards under the buoyancy action of the water, because the horn-shaped downwards-expanding bubble collecting umbrella is arranged above the air leakage holes on the air blowing heads, most of the bubbles can float upwards into the bubble collecting umbrella, and finally all the bubbles entering the bubble collecting umbrella float upwards through the bubble collecting channel, and because a large amount of bubbles completely float upwards into the bubble collecting channel under the action of the bubble collecting umbrella, the air flow rushing upwards in the bubble concentration channel drives four groups of passive fan blades and drives a rotating rod to synchronously rotate, and the rotating rod drives the rotating pulp and the floating disc to synchronously rotate; the continuous rotation of the rotary slurry enables water at the air leakage hole on the air-generating head to be in a flowing state all the time, so that the water which is oxygenated at the air leakage hole on the air-generating head is continuously disturbed and diffused by the rotary slurry, and an anoxic water source far away from the air leakage hole on the air-generating head is continuously supplemented to the air leakage hole on the air-generating head, thereby improving the dissolution rate of oxygen in bubbles and enhancing the oxygenation effect; the ascending air flow in the bubble concentration channel finally emerges from the upper end of the gas shunt ring in a bubble form until the bubbles emerge to the bottom of the floating plate, at the moment, because the floating plate is in a rotating state, because the lower end of the floating plate is lower than the lower end of the hollow floating ring by a certain distance in a starting state of the volute type centrifugal fan, bubbles at the bottom of the floating plate are attached to the outer wall of the floating plate and float upwards, a large amount of bubbles at the bottom of the floating plate are dispersed outwards to the bottom of the hollow floating ring in a vortex shape under the action of a rectangular blade on the wall surface of the floating plate, and in the process, a large amount of water at the pond surface is in contact with the bubbles, so that the water on the water surface is further dissolved with oxygen, the dispersed bubbles are attached to the bottom of the hollow floating ring, and the bubbles are gradually accumulated to cooperate with high-frequency vibration generated by the inner cavity of the hollow floating ring to promote the dissolution of the oxygen in, and the bubbles start to continuously overflow from the periphery of the hollow floating ring and emerge in a dispersed form, so that the phenomenon that the dissolution rate of the oxygen in the bubbles is reduced due to the concentrated dissolution of the bubbles in the dispersed form is effectively avoided, and meanwhile, the structure effectively reduces the noise of pumping water of a common booster.
Has the advantages that: the invention has simple structure, adopts the structure of the bubble collecting umbrella, utilizes the flow energy generated by rising of bubbles, ensures that the water at the air leakage hole on the air-generating head is always in a flowing state by the continuous rotation of the rotating slurry, ensures that the water which is oxygenated at the air leakage hole on the air-generating head is continuously disturbed and diffused by the rotating slurry, ensures that the water source which is anoxic and is far away from the air leakage hole on the air-generating head is continuously supplemented to the air leakage hole on the air-generating head, further improves the oxygen dissolution rate in the bubbles and improves the oxygenation effect.
Drawings
FIG. 1 is a schematic view of the invention taken generally inside;
FIG. 2 is an overall first schematic view of the present invention;
FIG. 3 is an overall second schematic view of the present invention;
FIG. 4 is an overall third schematic view of the present invention;
fig. 5 is a schematic view of a rotating shaft and a rotor structure connected with the rotating shaft.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The fishery oxygen-increasing machine based on the volute type centrifugal fan as shown in the attached figures 1 to 5 comprises a hard collecting cylinder 6, a bubble collecting umbrella 5 immersed in breeding water and a hard gas injection pipe 4;
the hard collecting barrel 6 in the vertical posture is of a vertically through tubular structure, and a vertically through bubble concentration channel 19 is arranged in the barrel of the hard collecting barrel 6; the lower end of the foam collecting umbrella 5 is of a bell-shaped flaring cover body structure, the foam collecting umbrella 5 is coaxial with the lower end of the hard current collecting barrel 6, the upper end of the foam collecting umbrella 5 is communicated with the hard current collecting barrel 6, the hard gas injection pipes 4 in a plurality of vertical postures are distributed on the outer side of the hard current collecting barrel 6, and the hard gas injection pipes 4 in the plurality of vertical postures are distributed along the hard current collecting barrel 6 in a circumferential array manner; the lower end of each hard gas injection pipe 4 penetrates through the umbrella surface of the bubble collecting umbrella 5;
the gas injection pipe also comprises a gas injection head 37, wherein the gas injection head 37 is of a cylindrical cavity structure with the diameter larger than that of the hard gas injection pipe 4; the lower end of each hard gas injection pipe 4 is connected with a gas emission head 37 in a conduction mode, each gas emission head 37 and the corresponding hard gas injection pipe 4 are coaxially arranged, and the upper end of each gas emission head 37 is provided with a plurality of gas leakage holes 36 distributed in an annular array mode; the bubbles from the air leakage holes 36 on each air bubbling head 37 float up to the inner side of the cover body of the bubble collecting umbrella 5, and the air bubbling heads 37 disperse the bubbles from the lower end of the hard air injection pipe 4 more randomly to prevent over concentration.
The device also comprises a first air guide pipe 39, a second air guide pipe 38, a hollow floating ring 9, a volute type centrifugal fan 1 and a gas shunt ring 3;
the hollow floating ring 9 is of a hard hollow annular ring-shaped structure, and an annular transition air cavity 35 is formed inside the hollow floating ring 9; the air outlet end 18 of the volute type centrifugal fan 1 is communicated with the transition air cavity 35 through a first air guide pipe 39; the gas shunt ring 3 is of an annular hollow box structure, and a coaxial annular shunt inner cavity 21 is formed in the gas shunt ring 3; the annular shunting inner cavity 21 is communicated with the transition air cavity 35 through a second air guide pipe 38; the volute type centrifugal fan 1 is arranged above the hollow floating ring 9, and the gas shunt ring 3 is coaxially arranged below the hollow floating ring 9; and the upper ends of the hard gas injection pipes 4 are communicated with the annular shunting inner cavity 21 together;
the upper end of the hard collecting cylinder 6 is fixedly connected with the gas shunt ring 3 coaxially, and the upper end of the bubble concentration channel 19 penetrates out of the upper end of the gas shunt ring 3. The upper end of the L-shaped connecting arm 8 is fixedly connected with the hollow floating ring 9, and the lower end of the L-shaped connecting arm 8 is fixedly connected with the outer wall of the hard collecting barrel 6; the mounting device is characterized in that a fan mounting platform 11 is mounted above the hollow floating ring 9 through two supporting upright posts 10 in a supporting mode, a volute type centrifugal fan 1 is mounted on the fan mounting platform 11, volute type centrifugal fan blades in the volute type centrifugal fan 1 and the hollow floating ring 9 are arranged coaxially, the center of gravity is located on the axis of the whole device, the stability of the device is improved, and an air inlet 17 of the volute type centrifugal fan 1 faces upwards vertically.
The floating plate 16, the rotating rod 7, the rotating slurry 14, the suspension line 12 and the counterweight 13 are also included; the floating disc 16 is a circular floater structure which is coaxial with the hollow floating ring 9, and the floating disc 16 is positioned in the area enclosed by the inner ring 27 of the hollow floating ring 9; a plurality of vertical rectangular blades 32 are arranged on the circumferential outer wall of the hollow floating ring 9, an anti-splash disc 33 is coaxially arranged at the upper end of the floating disc 16, a gap is formed between the disc outline of the anti-splash disc 33 and the inner ring 27 of the hollow floating ring 9, the rectangular blades are distributed in an annular array along the axis of the floating disc 16, and a gap is formed between the transverse tail end of each rectangular blade 32 and the inner ring 27 of the hollow floating ring 9 to prevent mutual rotation and friction;
the rotating rod 7 coaxially penetrates through the bubble concentration channel 19, and the outer diameter of the rotating rod 7 is smaller than the inner diameter of the bubble concentration channel 19; the upper end of the rotating rod 7 is fixedly connected with the floating disc 16 coaxially, the lower end of the rotating rod 7 is fixedly connected with the rotating pulp 14 through a connecting part 26, the rotating pulp 14 is of a vertically arranged rectangular plate structure, and a plurality of hollow holes 34 are formed in the rectangular plate of the rotating pulp 14 in a rectangular array; the height of the rotary slurry 14 is lower than that of the air leakage holes 36 on each air bubbling head 37; the lower end of the rotary paddle 14 is connected with a suspension line 12, and the lower end of the suspension line 12 is connected with the counterweight 13; four groups of passive fan blades 25 are further fixedly mounted on the rotating rod 7 at equal intervals along the axis direction; and four sets of passive fan blades 25 are all located in the bubble concentration channel 19; the ascending air flow or water flow in the bubble concentration channel 19 can drive four groups of driven fan blades 25 and drive the rotating rod 7 to synchronously rotate;
the bubble concentration channel structure further comprises a rotating rod limiting ring 23, the rotating rod limiting ring 23 is coaxially arranged in the bubble concentration channel 19, the rotating rod 7 can rotatably penetrate through the rotating rod limiting ring 23, and the rotating rod limiting ring 23 is fixedly supported and connected with the inner wall of the bubble concentration channel 19 through a supporting part 22; wherein the rotating rod 7 is in clearance fit with the rotating rod limiting ring 23, and the friction force is reduced by adopting the clearance fit.
In this embodiment, when the hollow floating ring 9 and the floating plate 16 float on the water surface, in the open state of the volute type centrifugal fan 1, the height of the lower end of the floating plate 16 is 3 to 6 cm lower than the height of the lower end of the hollow floating ring 9, and the height of the rotor 14 is 8 to 12 cm lower than the height of the air leakage holes 36 on the air emitting heads 37.
The method, the principle and the technical progress of the scheme are organized as follows:
the device is horizontally placed in the water of the fish pond, the hollow floating ring 9 and the floating disc 16 are in a floating state, and the parts below the hollow floating ring 9 and the floating disc 16 are immersed below the water surface of the pond; at the moment, the volute type centrifugal fan 1 is started, so that the transition air cavity 35 generates strong positive pressure, meanwhile, due to the fact that gas in the transition air cavity 35 rapidly gushes in and gushes out, the transition air cavity 35 generates wind whistling, further the hollow floating ring 9 generates high-frequency vibration, further strong positive pressure is formed in the shunting inner cavity 21, and further water in the shunting inner cavity 21 is discharged from the air leakage holes 36 in the air emitting heads 37 through the hard air injection pipe 4 under the action of wind pressure; then the shunting inner cavity 21 forms a cavity, because the volute type centrifugal fan 1 is still in an open state, the compressed air in the shunting inner cavity 21 is shunted to each hard air injection pipe 4 under the action of air pressure, and then is emitted in the form of bubbles through the air leakage holes 36 on each air emitting head 37, the formed bubbles are fully contacted with the water in the pond, the oxygen contained in the bubbles is partially dissolved in the water, and further the effect of increasing oxygen for the pond water is achieved, along with the large amount of bubbles emerging from the air leakage holes 36 on the air emitting heads 37, each bubble rapidly floats upwards under the buoyancy action of the water, because the horn-shaped downwards-expanding bubble collecting umbrella 5 is arranged above the air leakage holes 36 on the air emitting heads 37, most of the bubbles can float upwards into the bubble collecting umbrella 5, and finally all the bubbles entering the bubble collecting umbrella 5 are concentrated to pass through the bubble collecting channel 19, and all the bubbles float upwards into the bubble collecting channel 19 under the action of the bubble collecting umbrella 5, further, the bubble concentration channel 19 forms strong ascending air flow, the air flow gushing upwards in the bubble concentration channel 19 drives four groups of passive fan blades 25 and drives the rotating rod 7 to synchronously rotate, and at the moment, the rotating rod 7 drives the rotating pulp 14 and the floating disc 16 to synchronously rotate; the continuous rotation of the rotor plate 14 enables the water at the air leakage hole 36 on the air-generating head 37 to be in a flowing state all the time, so that the water which is oxygenated at the air leakage hole 36 on the air-generating head 37 is continuously disturbed and diffused by the rotor plate 14, and the water which is far away from the oxygen deficiency at the air leakage hole 36 on the air-generating head 37 is continuously supplemented to the air leakage hole 36 on the air-generating head 37, thereby improving the oxygen dissolution rate in the bubbles and enhancing the oxygenation effect; the ascending air flow in the air bubble concentration channel 19 finally emerges from the upper end of the air shunt ring 3 in the form of air bubbles until the air bubbles emerge to the bottom of the floating disc 16, at the moment, because the floating disc 16 is in a rotating state, because the height of the lower end of the floating disc 16 is 3-6 cm lower than that of the lower end of the hollow floating ring 9 under the opening state of the volute type centrifugal fan 1, in the upward floating process of the air bubbles at the bottom of the floating disc 16 attached to the outer wall of the floating disc 16, under the action of the rectangular blades 32 on the wall surface of the floating disc 16, a large number of air bubbles at the bottom of the floating disc 16 are dispersed outwards in a vortex shape to the bottom of the hollow floating ring 9, in the process, a large number of water at the pond water surface is in mutual contact with the air bubbles, further, oxygen is dissolved in the water surface, the dispersed air bubbles are attached to the bottom of the hollow floating ring 9, and the gradual accumulation of the air bubbles at the bottom, its vibrations are being promoted the oxygen in the bubble and are dissolving, and the bubble begins to spill over around hollow floating collar 9 in succession, and the form that becomes to scatter emits, makes the form that the bubble scatters effectively avoid concentrating dissolving, causes the phenomenon that bubble oxygen dissolution rate reduces, and this structure effectively reduces the noise that ordinary machine that increases was watered simultaneously.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (6)
1. The utility model provides a fishery oxygen-increasing machine based on spiral case formula centrifugal fan which characterized in that: comprises a hard collecting cylinder (6), a foam collecting umbrella (5) immersed in the breeding water and a hard gas injection pipe (4);
the rigid collecting barrel (6) in the vertical posture is of a vertically-through tubular structure, and a vertically-through bubble concentration channel (19) is arranged in the rigid collecting barrel (6); the lower end of the foam collecting umbrella (5) is of a bell-shaped flaring cover body structure, the foam collecting umbrella (5) is coaxial with the lower end of the hard current collecting cylinder (6), the upper end of the foam collecting umbrella (5) is communicated with the hard current collecting cylinder (6), the hard gas injection pipes (4) in a plurality of vertical postures are distributed on the outer side of the hard current collecting cylinder (6), and the hard gas injection pipes (4) in a plurality of vertical postures are distributed along the hard current collecting cylinder (6) in a circumferential array manner; the lower end of each hard gas injection pipe (4) penetrates through the umbrella surface of the foam collecting umbrella (5);
the gas injection pipe also comprises a gas injection head (37), wherein the gas injection head (37) is of a cylindrical cavity structure with the diameter larger than that of the hard gas injection pipe (4); the lower end of each hard gas injection pipe (4) is communicated and connected with a gas emission head (37), each gas emission head (37) and the corresponding hard gas injection pipe (4) are coaxially arranged, and the upper end of each gas emission head (37) is provided with a plurality of gas leakage holes (36) distributed in an annular array; the bubbles emerging from the air leakage holes (36) on the air bubbling heads (37) float up to the inner side of the cover body of the bubble collecting umbrella (5).
2. The fishery oxygen increasing machine based on the volute type centrifugal fan as claimed in claim 1, characterized in that: the device also comprises a first air guide pipe (39), a second air guide pipe (38), a hollow floating ring (9), a volute type centrifugal fan (1) and a gas shunt ring (3);
the hollow floating ring (9) is of a hard hollow annular ring-shaped structure, and an annular transition air cavity (35) is formed inside the hollow floating ring (9); an air outlet end (18) of the volute type centrifugal fan (1) is communicated with the transition air cavity (35) through a first air guide pipe (39); the gas shunt ring (3) is of an annular hollow box structure, and a coaxial annular shunt inner cavity (21) is formed in the gas shunt ring (3); the annular shunting inner cavity (21) is communicated and connected with the transition air cavity (35) through a second air guide pipe (38); the volute type centrifugal fan (1) is arranged above the hollow floating ring (9), and the gas shunt ring (3) is coaxially arranged below the hollow floating ring (9); the upper ends of the hard gas injection pipes (4) are communicated with the annular shunting inner cavity (21) together;
the upper end of the hard collecting cylinder (6) is fixedly connected with the gas shunt ring (3) coaxially, and the upper end of the bubble concentration channel (19) penetrates out of the upper end of the gas shunt ring (3).
3. The fishery oxygen increasing machine based on the volute type centrifugal fan as claimed in claim 2, characterized in that: the device is characterized by further comprising an L-shaped connecting arm (8), the upper end of the L-shaped connecting arm (8) is fixedly connected with the hollow floating ring (9), and the lower end of the L-shaped connecting arm (8) is fixedly connected with the outer wall of the hard current collecting barrel (6); the mounting fan platform (11) is mounted above the hollow floating ring (9) through two supporting upright columns (10) in a supporting mode, a volute type centrifugal fan (1) is mounted on the fan platform (11), volute type centrifugal fan blades in the volute type centrifugal fan (1) are coaxially arranged with the hollow floating ring (9), and an air inlet (17) of the volute type centrifugal fan (1) faces upwards vertically.
4. The fishery oxygen increasing machine based on the volute type centrifugal fan as claimed in claim 3, characterized in that: the floating disc type suspended weight device also comprises a floating disc (16), a rotating rod (7), a rotating slurry (14), a suspension line (12) and a counterweight (13);
the floating disc (16) is of a circular floater structure which is coaxial with the hollow floating ring (9), and the floating disc (16) is positioned in an area enclosed by an inner ring (27) of the hollow floating ring (9); a plurality of vertical rectangular blades (32) are arranged on the circumferential outer wall of the hollow floating ring (9), an anti-splash disc (33) is coaxially arranged at the upper end of the floating disc (16), a disc outline of the anti-splash disc (33) and an inner ring (27) of the hollow floating ring (9) are provided with gaps, the rectangular blades are distributed in an annular array along the axis of the floating disc (16), and a gap is formed between the transverse tail end of each rectangular blade (32) and the inner ring (27) of the hollow floating ring (9);
the rotating rod (7) coaxially penetrates through the bubble concentration channel (19), and the outer diameter of the rotating rod (7) is smaller than the inner diameter of the bubble concentration channel (19); the upper end of the rotating rod (7) is fixedly connected with the floating disc (16) coaxially, the lower end of the rotating rod (7) is fixedly connected with the slurry rotating plate (14) through a connecting part (26), the slurry rotating plate (14) is of a vertically arranged rectangular plate structure, and a plurality of hollow holes (34) are formed in the rectangular plate of the slurry rotating plate (14) in a rectangular array; the height of the rotary slurry (14) is lower than that of the air leakage holes (36) on the air bubbling heads (37); the lower end of the rotary paddle (14) is connected with a suspension line (12), and the lower end of the suspension line (12) is connected with the counterweight (13); four groups of passive fan blades (25) are further fixedly arranged on the rotating rod (7) at equal intervals along the axis direction; and four groups of passive fan blades (25) are positioned in the bubble concentration channel (19); the ascending air flow or water flow in the bubble concentration channel (19) can drive four groups of driven fan blades (25) and drive the rotating rod (7) to synchronously rotate;
the bubble concentration channel is characterized by further comprising a rotating rod limiting ring (23), the rotating rod limiting ring (23) is coaxial with the bubble concentration channel (19), the rotating rod (7) can rotate to penetrate through the rotating rod limiting ring (23), and the rotating rod limiting ring (23) is fixedly supported and connected with the inner wall of the bubble concentration channel (19) through a supporting part (22); wherein the rotating rod (7) is in clearance fit with the rotating rod limiting ring (23).
5. The fishery oxygen increasing machine based on the volute type centrifugal fan as claimed in claim 4, characterized in that: when the hollow floating ring (9) and the floating disc (16) float on the water surface, the height of the lower end of the floating disc (16) is 3-6 cm lower than that of the lower end of the hollow floating ring (9) under the opening state of the volute type centrifugal fan (1), and the height of the rotary slurry (14) is 8-12 cm lower than that of the air leakage holes (36) on the air bubbling heads (37).
6. The use method of the fishery oxygen increasing machine based on the volute type centrifugal fan as claimed in claim 5, is characterized in that: the fishery aerator is horizontally placed in water of a fish culture pond, the hollow floating ring (9) and the floating plate (16) are in a floating state, and parts on the lower sides of the hollow floating ring (9) and the floating plate (16) are immersed below the water surface of the pond; at the moment, the volute type centrifugal fan (1) is started, so that a transition air cavity (35) generates strong positive pressure, meanwhile, due to the fact that gas in the transition air cavity (35) rapidly gushes in and gushes out, the transition air cavity (35) generates air whistling, further, the hollow floating ring (9) generates high-frequency vibration, further, strong positive pressure is formed in the shunting inner cavity (21), and further, water in the shunting inner cavity (21) is discharged from air leakage holes (36) in all air emitting heads (37) through the hard air injection pipe (4) under the action of air pressure; then the shunting inner cavity (21) forms a cavity, because the volute type centrifugal fan (1) is still in an open state, the compressed air in the shunting inner cavity (21) is shunted to each hard air injection pipe (4) under the action of wind pressure, and then is blown out in a bubble form through the air leakage holes (36) on each air blowing head (37), the formed bubbles are fully contacted with the water in the pond, the oxygen contained in the bubbles is partially dissolved in the water, so that the effect of oxygenating the water in the pond is achieved, along with the large amount of bubbles gushed out from the air leakage holes (36) on the air blowing heads (37), each bubble quickly floats up under the buoyancy action of the water, because the horn-shaped downward-expanding foam collecting umbrella (5) is arranged above the air leakage holes (36) on the air blowing heads (37), most of the bubbles float up to the foam collecting umbrella (5), and finally all the bubbles entering the foam collecting umbrella (5) float up intensively through the bubble collecting channel (19), because a large number of bubbles completely float to the bubble concentration channel (19) under the action of the bubble collection umbrella (5), the bubble concentration channel (19) forms strong ascending air flow, the air flow which upwards gushes out from the bubble concentration channel (19) drives four groups of driven fan blades (25) and drives the rotating rod (7) to synchronously rotate, and at the moment, the rotating rod (7) drives the rotating pulp (14) and the floating disc (16) to synchronously rotate; the continuous rotation of the rotary slurry (14) enables the water at the air leakage hole (36) on the air cap (37) to be in a flowing state all the time, so that the water which is oxygenated at the air leakage hole (36) on the air cap (37) is continuously disturbed and diffused by the rotary slurry (14), and the water source which is far away from the oxygen deficiency at the air leakage hole (36) on the air cap (37) is continuously supplemented to the air leakage hole (36) on the air cap (37), thereby improving the oxygen dissolution rate in the bubbles and improving the oxygenation effect; ascending air flow in the bubble concentration channel (19) finally emerges in a bubble form from the upper end of the gas shunt ring (3) until bubbles emerge to the bottom of the floating disc (16), at the moment, because the floating disc (16) is in a rotating state, because the lower end of the floating disc (16) is lower than the lower end of the hollow floating ring (9) by 3-6 cm under the opening state of the volute type centrifugal fan (1), bubbles at the bottom of the floating disc (16) are attached to the outer wall of the floating disc (16) to float upwards, and under the action of the rectangular blades (32) on the wall surface of the floating disc (16), a large amount of bubbles at the bottom of the floating disc (16) are dispersed outwards to the bottom of the hollow floating ring (9) in a vortex shape, a large amount of water at the water surface of the pond is mutually contacted with the bubbles in the process, further oxygen is dissolved in the water surface, the dispersed bubbles are attached to the bottom of the hollow floating ring (9), and because the bubbles at the bottom of the hollow floating ring (9) are gradually accumulated, the high frequency vibrations that cooperation hollow floating collar (9) self produced because the inner chamber, its vibrations dissolve in the oxygen that promotes the bubble, and the bubble begins to spill over all around from hollow floating collar (9) in succession, and the form that becomes to scatter emerges, and the form that makes the bubble scatter has effectively avoided concentrating to dissolve, causes the phenomenon that bubble oxygen dissolution rate reduces, and this structure effectively reduces ordinary machine that increases the noise of fetching water simultaneously.
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| JP3542324B2 (en) * | 2000-09-18 | 2004-07-14 | 日立機電工業株式会社 | Aerator |
| KR100520692B1 (en) * | 2003-08-13 | 2005-10-12 | 한상배 | Aerators with the Functions of muli-step mixing and sepataion |
| CN101717156A (en) * | 2009-11-26 | 2010-06-02 | 欧阳志强 | Aerating device and water body activating method |
| CN103828758B (en) * | 2012-11-25 | 2016-07-06 | 孙克勇 | Push away water oxygenating machine |
| CN203446378U (en) * | 2013-09-17 | 2014-02-26 | 张文永 | Aerated surge-type aerator |
| CN106477712B (en) * | 2016-10-28 | 2018-03-02 | 刘牧 | Multimedium cleaning system in situ with self-rotary partial pressure water-locator |
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