CN102870737B - Aquatic water aerator - Google Patents
Aquatic water aerator Download PDFInfo
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- CN102870737B CN102870737B CN201210407653.2A CN201210407653A CN102870737B CN 102870737 B CN102870737 B CN 102870737B CN 201210407653 A CN201210407653 A CN 201210407653A CN 102870737 B CN102870737 B CN 102870737B
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- pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
Disclosed is an aquatic water aerator. A pressured water inflow pipe and a compressed air inflow pipe are respectively inserted into an air-liquid mixing pipe axially along the vertical air-liquid mixing pipe and are communicated with the upper end of an inner cavity of the air-liquid mixing pipe. The inner cavity of the air-liquid mixing pipe is a tubular cavity provided with a plurality of spiral blades inside. The lower end of the inner cavity of the air-liquid mixing pipe is communicated with one end of the inner cavity of an air-liquid separating pipe. The inner cavity of the air-liquid separating pipe is a transverse tubular cavity. The top of the inner cavity of the air-liquid separating pipe is communicated with the inner cavity of the air-liquid mixing pipe through a gas recovery pipe. The other end of the inner cavity of the air-liquid separating pipe is communicated with an aerating water outflow pipe. The air-liquid separating pipe is larger than the air-liquid mixing pipe, the aerating water outflow pipe and a bend in inner diameter. The pressure of pressured water in the pressured water inflow pipe is larger than that of compressed air in the compressed air inflow pipe. The aquatic water aerator without any mechanical device supplies oxygen and water to aquatic waters by efficiently dissolving oxygen in compressed air by pressured water, and is simple in structure and low in cost.
Description
Technical field
The present invention relates to aquaculture field, relate in particular to a kind of oxygen enhancing aeration device of breeding water body.
Background technology
In aquaculture field, aerator Main Function is for cultivated animals provides sufficient oxygen, promotes cultivated animals healthy growth.Existing aerator has two classes: a class is blast aerator, is divided into again macropore aerator, mesopore aerator, aperture aerator and microporous aeration device; Another kind of is mechamical xurface aeration device, and conventional impeller, blade rotary impact the water surface and realize oxygenation object.The latter's energy consumption is high, be unsuitable for indoor industrially-cultured employing.Therefore conventionally using is at present blast aerator.
Along with culture fishery is gradually to the development of high density, intensive direction, more and more higher to the requirement of dissolved oxygen concentration in breeding water body.Dissolved oxygen is the first limiting factor of high-density aquiculture capacity normally.For adapting to the growth requirement of modern aquaculture, in high density industrial circulating water cultivating, conventionally adopt the source of the gas of pure oxygen as blast aerator, the for the benefit of dissolving of pure oxygen in water body is generally by equipment independently, as equipment such as low pressure dissolving device, high pressure dissolving devices, to realize oxygen to dissolve.
There is following defect in this pure oxygen blast aeration oxygenation way:
1, in production practices, the aquatic farm of a lot of remote districts, oxygen factory is few, and pure oxygen is difficult to obtain, and has seriously restricted high density industrialized aquiculture in local development.
2, traditional blast aeration oxygen-increasing device generally by aeration stone and microporous aeration disc to fishpond air aeration, the former has, and bubble is large, bubble is inhomogeneous, air water is short time of contact, causes the shortcomings such as oxygen utilization rate is low; The latter has the shortcomings such as the pressure loss is large, gas distribution is inhomogeneous, easy obstruction, cracky.
3, need a set of special oxygen, aerator, and very high to the sealing requirements of package unit, if there is equipment fault, pipeline breakage, cause pure oxygen to be revealed, easily cause production contingency.
4, along with the raising of cultivation density, cultivated animals is breathed the gas concentration lwevel of discharging and is constantly accumulated, cause on the one hand the expiratory dyspnea of cultivated animals, carbonic acid gas can affect by the change of water body partial pressure the dissolved efficiency of oxygen simultaneously, but existing aeration mode cannot effectively be removed the carbonic acid gas in breeding water body.
Summary of the invention
It is a kind of without pure oxygen air feed that technical problem to be solved by this invention is to provide, without the oxygen-increasing device of aeration stone or aeration plate, in aeration, can also effectively remove the carbonic acid gas in breeding water body, and concentration of oxygen gas is high, simple in structure, safe and convenient to use, the breeding water body aerator of good economy performance.
The present invention is achieved by the following technical solutions:
A kind of breeding water body aerator, is characterized in that:
Press water water inlet pipe and compressed air inlet pipe axially insert in gas-liquid mixed pipe along the gas-liquid mixed pipe of vertical respectively, be communicated with the inner chamber upper end of gas-liquid mixed pipe,
Gas-liquid mixed tube cavity is the spirality chamber axially coiling along it,
Gas-liquid mixed tube cavity lower end is connected with gas-liquid separation tube cavity one end by bend pipe,
Gas-liquid separation tube cavity is the cylindrical chamber of lateral arrangement,
Gas-liquid separation tube cavity top is communicated with gas-liquid mixed tube cavity upper end by gas recovery pipe,
The gas-liquid separation tube cavity other end is communicated with oxygenation water drainpipe,
Gas-liquid separation bore is greater than gas-liquid mixed bore, oxygenation water drainpipe internal diameter and bend pipe internal diameter, and oxygenation water drainpipe internal diameter is equal to or greater than bend pipe internal diameter and gas-liquid mixing tube internal diameter.
Press water hydraulic pressure in press water water inlet pipe is greater than the compressed air air pressure in compressed air inlet pipe.
According to double-film theory, oxygen is determined by factors such as overall mass transfer coefficient, correction factor and dissolved oxygen saturated concentrations to the mass transport process of water body.The invention thinking of this device had both been different from traditional blast aeration and had not also belonged to mechamical xurface aeration, but by the improvement to supply channel outlet, design unique pipeline chamber structure, supply water in to supply channel aeration, form the effect of shearing, broken blend fluid of gas and water, strengthen turbulence intensity, thereby improve overall mass transfer coefficient, realize the high-efficiency dissolution of oxygen, finally when supplying water, realize the function of air feed.
The water inlet of device and air inlet are has certain initial velocity and pressure, press water and compressed air are after access to plant, air-flow and current axially enter in gas-liquid mixed chamber along gas-liquid mixed pipe, the spirality chamber structure of gas-liquid mixed tube cavity has the effect that radial circular flow mixes, air-water mixture is the fully contact of lower time spiraling, thereby improve gas-water contact area and turbulence factor, reach the effect that improves oxygen dissolved efficiency.
After mixing wastewater with air is abundant, enter gas-liquid separation tube cavity, because caliber increases slightly, current slow down, and undissolved gas reenters gas-liquid mixed tube cavity by gas recovery pipe, thereby by gas-liquid separation tube cavity, realize the not recycling of dissolved gas, improve oxygen dissolved efficiency.
Through gas-liquid separation pipe, reclaiming not after dissolved oxygen, the oxygenation water that contains a large amount of dissolved oxygens enters oxygenation water drainpipe, now caliber attenuates, and water velocity increases, and by hydraulic pressure, discharges together with air pressure, thereby produce plug-flow effect, thereby make dissolved oxygen evenly spread, fully mix with breeding water body, can effectively remove the carbonic acid gas of high-density breeding Mesichthyes respiration accumulation, improve culturing pool water quality, thereby reduce water body cycle rate, reduce the energy consumption of circulating water cultivation; In addition, the high-speed gas-liquid mixed flow that device produces, with a large amount of kinetic energy, can be improved the water body fluidised form of high-density breeding, therefore can utilize this feature to promote the efficient discharge of the dirts such as particulate organic matter in breeding water body.
Further, the spirality chamber structure of gas-liquid mixed tube cavity can adopt following structure to obtain: gas-liquid mixed tube cavity is tubular, on in gas-liquid mixed pipe below press water water inlet pipe and compressed air inlet pipe, under stack more piece helical blade, helical blade is fixed in gas-liquid mixed pipe, every joint helical blade is by a slice plate blade, the turn-back of lower both sides forms, the outer rim of helical blade and gas-liquid mixed tube cavity match, every joint helical blade is divided into two and half chambeies by that section of gas-liquid mixed tube cavity at its place, the direction of rotation of adjacent two joint helical blades is contrary, stagger mutually in the position of upper joint helical blade lower edge and lower joint helical blade upper limb, gas-liquid separation pipe top is communicated with the gas-liquid mixed tube cavity of helical blade top by gas recovery pipe.
Adjacent two joint helical blade direction of rotation are contrary, and stagger mutually in position, air-water mixture by time following the characteristics of motion of " cut apart-be shifted-be overlapping ", every during through a joint helical blade, air-water mixture is divided into two strands by helical blade, these two strands of air waters flow down while falling lower joint helical blade, again cut apart again, cross with the air water stream of last time cutting apart simultaneously, in this process, air water fails to be convened for lack of a quorum and produces a large amount of micro air bubbles, greatly improves contact area and the turbulence factor of gas-liquid two-phase, thereby further improves oxygen transfer efficiency.
Further, for guaranteeing better current displacement effect, the anglec of rotation of helical blade is 160～360 degree.
For guaranteeing better current segmentation effect, in adjacent two joint helical blades, the upper limb of the lower edge of upper joint helical blade and lower joint helical blade 90 degree that mutually stagger.
Gas-liquid separation bore is 1.5～4:1 with gas-liquid mixed bore ratio, and object is overstriking caliber, reduces the layering of flow velocity formation gas-liquid, thereby gas sucks back hybrid chamber by negative pressure, realizes good gas-liquid separation effect.
Further again, the quantity of helical blade is preferably 3～10.
Beneficial effect of the present invention is:
1, without pure oxygen air feed, without blast aerator, utilize the oxygen in press water high-efficiency dissolution compressed air, oxygen supply when supplying water for breeding water body, simple in structure, with low cost;
2, the high-speed gas-liquid mixed flow that device produces, with a large amount of kinetic energy, has good plug-flow effect, can improve the water body fluidised form of high-density breeding, promotes the efficient discharge of particulate organic matter;
3, the carbonic acid gas that can effectively remove the accumulation of high-density breeding Mesichthyes respiration, improves culturing pool water quality, thereby reduces water body cycle rate, reduces the energy consumption of circulating water cultivation;
4, be suitable for the depth of water and be generally 0.5～3m, applicability is extensive.
Accompanying drawing explanation
Fig. 1 is the elevational cross-sectional view of a kind of preferred structure of the present invention
Fig. 2～3 are the perspective view of helical blade
Fig. 4 is the vertical view of helical blade
In Fig. 1: 1 is press water water inlet pipe, 2 is compressed air inlet pipe, and 3 is gas-liquid mixed pipe, and 4 is bend pipe, and 5 is gas-liquid separation pipe, and 6 is gas recovery pipe, and 7 is oxygenation water drainpipe, and 8 is helical blade.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
In Fig. 1, press water water inlet pipe 1 and compressed air inlet pipe 2 axially insert in gas-liquid mixed pipe 3 along the gas-liquid mixed pipe 3 of vertical respectively, are communicated with the inner chamber upper end of gas-liquid mixed pipe 3.
Gas-liquid mixed pipe 3 inner chambers are tubular, the interior upper and lower 5 joint helical blades 8 that stack of gas-liquid mixed pipe 3 below press water water inlet pipe 1 and compressed air inlet pipe 2, helical blade 8 is fixed in gas-liquid mixed pipe 3, every joint helical blade 8 is formed by the upper and lower both sides turn-back of a slice plate blade, windup-degree is 180～360 degree, the outer rim of helical blade 8 and gas-liquid mixed pipe 3 inner chambers match, the direction of rotation of adjacent two joint helical blades 8 is contrary, the position of upper joint helical blade 8 lower edges and lower joint helical blade 8 upper limbs 90 degree that mutually stagger.
Gas-liquid mixed pipe 3 inner chamber lower ends are connected with gas-liquid separation pipe 5 inner chamber one end by bend pipe 4, and the gas-liquid separation pipe 5 inner chamber other ends are communicated with oxygenation water drainpipe 7.
The cylindrical chamber that gas-liquid separation pipe 5 inner chambers are lateral arrangement, gas-liquid separation pipe 5 tops are communicated with gas-liquid mixed pipe 3 inner chambers of helical blade 8 tops by gas recovery pipe 6.
Gas-liquid separation pipe 5 internal diameters are 1.5～4:1 with gas-liquid mixed pipe 3 internal diameter ratios, and oxygenation water drainpipe 7 internal diameters are equal to or greater than bend pipe 4 internal diameters and gas-liquid mixing tube 3 internal diameters.
Press water hydraulic pressure in press water water inlet pipe 1 is greater than the compressed air air pressure in compressed air inlet pipe 2.
The water inlet of device and air inlet are has certain initial velocity and pressure, press water and compressed air are after access to plant, air-flow and current axially enter its inner chamber along gas-liquid mixed pipe 3, on in gas-liquid mixed pipe 3 inner chambers, under stacked the helical blade 8 of more piece Rotate 180 °, helical blade 8 direction of rotation in adjacent two joints are contrary, and be staggered 90 °, there is radial circular flow immixture, air-water mixture by time following the characteristics of motion of " cut apart-be shifted-be overlapping ", every during through a joint helical blade 8, air-water mixture is divided into two strands by helical blade 8, these two strands of air waters flow down while falling lower joint helical blade 8, air water stream is cut apart again again, cross with the air water stream of last time cutting apart simultaneously, in this process, can produce a large amount of micro air bubbles, greatly improve contact area and the turbulence factor of gas-liquid two-phase, thereby further improve oxygen transfer efficiency.
After mixing wastewater with air is abundant, enter gas-liquid separation pipe 5 inner chambers, because caliber increases thick, current slow down, as shown in Figure 1, dotted line in gas-liquid separation pipe 5 is water surface curve height, undissolved gas reenters gas-liquid mixed tube cavity 3 upper ends by gas recovery pipe 6, thereby realizes the not recycling of dissolved gas by gas-liquid separation pipe 5 inner chambers, improves oxygen dissolved efficiency.
Through gas-liquid separation pipe 5, reclaiming not after dissolved oxygen, the oxygenation water that contains a large amount of dissolved oxygens enters oxygenation water drainpipe 7, now caliber attenuates, and water velocity increases, and by hydraulic pressure, discharges together with air pressure, thereby produce plug-flow effect, thereby make dissolved oxygen evenly spread, fully mix with breeding water body, can effectively remove the carbonic acid gas of high-density breeding Mesichthyes respiration accumulation, improve culturing pool water quality, thereby reduce water body cycle rate, reduce the energy consumption of circulating water cultivation; In addition, the high-speed gas-liquid mixed flow that device produces, with a large amount of kinetic energy, can be improved the water body fluidised form of high-density breeding, therefore can utilize this feature to promote the efficient discharge of the dirts such as particulate organic matter in breeding water body.
Claims (6)
1. a breeding water body aerator, is characterized in that:
Press water water inlet pipe (1) and compressed air inlet pipe (2) axially insert in gas-liquid mixed pipe (3) along the gas-liquid mixed pipe (3) of vertical respectively, be communicated with gas-liquid mixed pipe (3) inner chamber upper end,
Gas-liquid mixed pipe (3) inner chamber is the spirality chamber axially coiling along it,
Gas-liquid mixed pipe (3) inner chamber lower end is connected with gas-liquid separation pipe (5) inner chamber one end by bend pipe (4),
The cylindrical chamber that gas-liquid separation pipe (5) inner chamber is lateral arrangement,
Gas-liquid separation pipe (5) inner cavity top is communicated with gas-liquid mixed pipe (3) inner chamber upper end by gas recovery pipe (6),
Gas-liquid separation pipe (5) the inner chamber other end is communicated with oxygenation water drainpipe (7),
Gas-liquid separation pipe (5) internal diameter is greater than gas-liquid mixed pipe (3) internal diameter, oxygenation water drainpipe (7) internal diameter and bend pipe (4) internal diameter, and oxygenation water drainpipe (7) internal diameter is equal to or greater than bend pipe (4) internal diameter and gas-liquid mixing tube (3) internal diameter,
Press water hydraulic pressure in press water water inlet pipe (1) is greater than the compressed air air pressure in compressed air inlet pipe (2).
2. breeding water body aerator according to claim 1, is characterized in that:
Described gas-liquid mixed pipe (3) inner chamber is tubular,
The upper and lower more piece helical blade (8) that stacks in the gas-liquid mixed pipe (3) of press water water inlet pipe (1) and compressed air inlet pipe (2) below, helical blade (8) is fixed in gas-liquid mixed pipe (3),
Every joint helical blade (8) is formed by the upper and lower both sides turn-back of a slice plate blade, the outer rim of helical blade (8) and gas-liquid mixed pipe (3) inner chamber match, every joint helical blade (8) is divided into two and half chambeies by that section of gas-liquid mixed pipe (3) inner chamber at its place
The direction of rotation of adjacent two joint helical blades (8) is contrary, staggers mutually in the position of upper joint helical blade (8) lower edge and lower joint helical blade (8) upper limb,
Gas-liquid separation pipe (5) top is communicated with gas-liquid mixed pipe (3) inner chamber of helical blade (8) top by gas recovery pipe (6).
3. breeding water body aerator according to claim 2, is characterized in that: the windup-degree of the upper and lower both sides of described every joint helical blade (8) is 160～360 degree.
4. breeding water body aerator according to claim 2, is characterized in that: in adjacent two joints helical blades (8), and the upper limb of the lower edge of upper joint helical blade (8) and lower joint helical blade (8) 90 degree that mutually stagger.
5. breeding water body aerator according to claim 2, is characterized in that: described gas-liquid separation pipe (5) internal diameter and gas-liquid mixed pipe (3) internal diameter ratio are 1.5～4:1.
6. breeding water body aerator according to claim 2, is characterized in that: the quantity of described helical blade (8) is 3～10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210407653.2A CN102870737B (en) | 2012-10-23 | 2012-10-23 | Aquatic water aerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210407653.2A CN102870737B (en) | 2012-10-23 | 2012-10-23 | Aquatic water aerator |
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| CN102870737A CN102870737A (en) | 2013-01-16 |
| CN102870737B true CN102870737B (en) | 2014-04-16 |
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| CN201210407653.2A Expired - Fee Related CN102870737B (en) | 2012-10-23 | 2012-10-23 | Aquatic water aerator |
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| TWI441784B (en) * | 2013-05-30 | 2014-06-21 | Fu Chung Hsiao | Water circulation device |
| CN103535317B (en) * | 2013-11-04 | 2015-12-02 | 中国水产科学研究院渔业机械仪器研究所 | A kind of fishpond water inlet jet intermingling apparatus used for aquiculture |
| CN105984967A (en) * | 2015-01-27 | 2016-10-05 | 无锡市兴盛环保设备有限公司 | Novel fixed spiral aeration device |
| CN105923799B (en) * | 2016-06-28 | 2019-03-29 | 湖南农业大学 | The micro-nano aeration system of water body |
| CN105923745B (en) * | 2016-06-28 | 2019-01-15 | 湖南农业大学 | Water oxygenation system |
| CN108142340B (en) * | 2018-02-09 | 2023-05-30 | 桐乡市***海北圩水产专业合作社 | Young fish formula feed ingestion domestication device |
| CN110074040B (en) * | 2019-05-29 | 2021-11-26 | 张腊梅 | Fish tank capable of supplying oxygen by utilizing air pressure without electricity |
| CN112113382A (en) * | 2019-06-19 | 2020-12-22 | 青岛海尔电冰箱有限公司 | Refrigerator with improved condenser |
| CN111406698A (en) * | 2020-04-28 | 2020-07-14 | 上海海洋大学 | Intelligent box energy-saving breeding device |
| CN111573899B (en) * | 2020-05-28 | 2022-04-29 | 日照悦兴化工有限公司 | Industrial sewage treatment equipment |
| CN112875888A (en) * | 2021-03-28 | 2021-06-01 | 西安智水环境科技有限公司 | Submersible gas-liquid mixing mechanism, oxygenator, solar oxygenating device and monitoring system |
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