CN205953680U - Super supersaturated with dissolved oxygen aeration equipment - Google Patents
Super supersaturated with dissolved oxygen aeration equipment Download PDFInfo
- Publication number
- CN205953680U CN205953680U CN201620926569.5U CN201620926569U CN205953680U CN 205953680 U CN205953680 U CN 205953680U CN 201620926569 U CN201620926569 U CN 201620926569U CN 205953680 U CN205953680 U CN 205953680U
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- CN
- China
- Prior art keywords
- oxygen
- pipe
- water
- aeration
- dissolved oxygen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
Abstract
The utility model provides a super supersaturated with dissolved oxygen aeration equipment, its leading features are before rivers get into the conical contact room, to install venturi gas -liquid mixer and spiral pipe blender additional. Oxygen can be introduced fast to the venturi, and for reaching gas, liquid flow balance, the portion increases the closed tube at the conical contact roof. Through the change that detects the liquid level in the closed tube, the level gauge can be made a response to the size of the gaseous cavity of contact chamber in real time to with signal transmission to controller. Adjust the oxygen flow to pilot -gas, liquid stream volume compare, realize accurate aeration. Its advantage is that through the level gauge, automatic accurate oxygen aeration is realized to dynamic adjustment oxygen flow. Can be fast, high -efficiently generate super supersaturated with dissolved oxygen rivers, form big dissolved oxygen gradient with water on every side, oxygen peripherad fast spreads, spreads the radius usually and can reach more than 2 km, messenger's water oxygenates rapidly. Adopt super supersaturated with dissolved oxygen aeration, can miniaturize by realization equipment, reduce device area, save the equipment input cost.
Description
Technical field
This utility model is related to a kind of over-saturation for sewage disposal, environment water reparation and aquaculture oxygen supplement
Dissolved oxygen aerator, belongs to field of environment protection equipment.
Background technology
Aeration, in sewage disposal, especially during biochemical treatment, is one of most crucial technique.Watercourse aeration is simultaneously
It is the premise repairing the various water bodies such as city black-odor riverway, eutrophic lake, reservoir, estuary coast.China's aquaculture face
Long-pending wide, there is millions of hectares of the water surface, the dissolved oxygen demand of aquaculture is quite big.For increase aquaculture production it is ensured that
Quality, needs efficient aeration aerating technology.Common aerator adopts air aeration, such as mechanical aeration and blast aeration dress
Put.Either mechanical aeration or blast aeration, oxygen dissolved efficiency is relatively low, generally only 15-25% about.This is due to sky
Oxygen content only about 21% in gas, only has 9.1 mg/L in the saturation solubility of 20 DEG C of clear water oxygens.Using pure oxygen aeration, root
According to Henry's law, because oxygen partial pressure increases, dissolved oxygen concentration increases, and in water, saturation dissolves dense increase, at room temperature up to
43.3 mg/L.If continue to increase oxygen partial pressure, such as 2 air pressure in aerator, saturated dissolved oxygen concentration is up to 86.6
mg/L.Because pure oxygen preparation expense is more expensive, if using common microporous aeration device, partial oxidation can be caused to escape from water body
To in air, cause to waste, reduce pure oxygen aeration efficiency.Primary bright downflow system bubble contact aerator（U.S. Patent number
US3804255）, also referred to as Speece taper oxygen-increasing device, using oxygen as source of the gas, almost 100% pure oxygen can be utilized.Its
Principle is：Current are injected from top to bottom by a turbination contact chamber by water pump, inverted cone contact chamber top has a pure oxygen to enter
Trachea, oxygen and high-velocity flow are mixed to form a large amount of bubbles and flow downward with current.Flow downward process in gas-liquid mixture
In, because contact chamber cross-sectional area gradually expands, water velocity constantly reduces, when current decrease speed is less than bobble rise velocity
When, oxygen bubble no longer flows downward, and such oxygen just can be " entrapped " inside cone.This device increased oxygen and current
Time of contact, oxygen utilization efficiency is up to 100% in theory.But this device has following defect：
（1）The water flow of this aerator and oxygen flow must maintain certain poised state, otherwise can cause oxygen
Gas bubble can not reach saturated dissolved oxygen concentration in the accumulation of contact chamber top or water outlet.In actual motion, current and air-flow with
Time can fluctuate, and both are extremely difficult to balance.For example：When oxygen flow is more than saturated dissolved oxygen amount needed for water body, on
Rise bubble will build up in conical contact ceiling portion, form gas cavity, reduce water body and bubble contact strength and time, very
The indoor water level of person's extruding contact, bubble " squeezing " is gone out reactor.If the amount of oxygen that oxygen flow can dissolve less than current,
Water outlet dissolved oxygen concentration is less than saturated concentration, and aeration efficiency reduces.It is therefore desirable to carrying out accurately to oxygen flow and discharge
Control, make the two keep dynamic equilibrium；
（2）Though this device can guarantee that the time of staying within reactor for the oxygen, the time of staying of current is limited.Root
Theoretical in the double membrane mass transfer of liquid diffusion according to gas, oxygen dissolution depends on the mass transfer velocity in liquid film.Due to circular cone from top to bottom
Shape water velocity constantly reduces, and is gradually laminar flow from turbulence transition, between air-liquid, disturbance is not enough, is so unfavorable between gas-liquid
Rapid mass transfer.
Content of the invention
The purpose of this utility model is for not enough present in above-mentioned technology, provides a kind of over-saturation dissolved oxygen aeration dress
Put.Increase preposition Liqiud-gas mixing device, improve oxygen mass transfer effect in current, provide a kind of this aeration of precise control to fill simultaneously
The gas flow put and the method for water flow balance.
The purpose of this utility model is achieved in that including water inlet pipe, water pump, oxygen hose, air intake control valve, venturi
Air and liquid mixer, serpentine pipe blender, inverted cone contact chamber, contact chamber gas cavity, top cross over pipe, liquidometer, exhaust-valve
Door, controller, outlet pipe, is characterized in that, water inlet pipe is connected with water pump, and water pump connects venturi air and liquid mixer through outlet pipe,
Oxygen hose is connected, entering between venturi air and liquid mixer in oxygen hose is air intake control valve in the middle part of venturi air and liquid mixer,
The outlet of venturi air and liquid mixer is connected with serpentine pipe blender import, and the mouth down that goes out of serpentine pipe blender is connect with inverted cone
The top inlet of tactile room connects.It is provided with cross over pipe in the top-side of inverted cone contact chamber.Pacify in the cross over pipe vertical section of top
Dress liquidometer.Connect emptying valve in the horizontal tube of top cross over pipe.Base diameter outlet connects outlet pipe.Through outlet pipe, water
Stream enters environment water.Controller passes through holding wire, and one end is connected with liquidometer, and the other end is connected with air intake control valve.In water
Before stream enters conical contact room, the preposition of increase is exactly to install venturi air and liquid mixer and serpentine pipe blender additional.
Venturi can be rapidly introduced into oxygen, under high-velocity flow, forms a large amount of microbubbles in current, these microbubble waters
Stream mixture enters back into serpentine pipe, and by flow at high speed in serpentine pipe, the centrifugal force producing and shearing force make current fill with bubble
Tap touches mixing, realizes the high-efficiency dissolution of oxygen.For reaching air-liquid flow equilibrium, increase cross over pipe in conical contact ceiling portion.By
Cavity will be formed in conical contact ceiling portion in superfluous oxygen, affect height of liquid level.By the liquid level in detection cross over pipe
Change, determines whether cavity, and that is, oxygen flow is excessive, to adjust oxygen flow, thus controlling air-liquid flow-rate ratio, realizes essence
Really aeration.
The invention has the beneficial effects as follows, by liquidometer, dynamic regulation oxygen flow, realize automatically accurately pure oxygen aeration.
Can quickly, efficiently produce over-saturation dissolved oxygen current, usual concentration be more than 43mg/L, considerably beyond under room temperature water body saturation dissolving
Oxygen concentration 9mg/L.Current containing superelevation dissolved oxygen concentration, form big dissolving oxygen gradient with surrounding water, oxygen can quickly to
Surrounding spreads, and usual dilation angle is up to 2 more than km（It is specifically dependent upon the correlative factors such as temperature, the depth of water）, so that water body is filled rapidly
Oxygen.
Using over-saturation dissolved oxygen aeration, achievable device miniaturization, reduce plant area area, save equipment investment and become
This.In wastewater treatment process, using air aeration, powerful aerator, large pump or Large Diameter Pipeline aeration tube need to be installed
Road, equipment investment is big.As the pure oxygen aeration device using the present invention, under conditions of injection equal in quality dissolved oxygen, correlation sets
Standby size only adopts the 1/4 of air aeration technology, saves and takes up an area and equipment investment.
The technology of the present invention is especially suitable for large and medium-sized pollution waters restoration.The current that the present invention generates are rich in over-saturation and dissolve
Oxygen, when mixing with polluted-water bottom water flow, does not produce bubble, is not in the phenomenon that bottom water flow is carried up by bubble,
Also being not in the phenomenon that water bottom mud is rolled, do not stir Sediments, not disturbing water body proper flow it is achieved that harnessing the river
Be combined with controlling mud.By high concentration dissolved oxygen aeration, expeditiously provide oxygen to anoxia waters, oxygen can be formed on bed mud surface
Change film, effectively in suppression water, the dissolving release of the such as heavy metal contaminants such as ferrum, hydrargyrum and nitrogen, phosphorus recycling, can large area change
Kind bed mud is it is ensured that the safety and stablization of water quality.
The aerator of the present invention is safer to aquatic ecological.In the backwater of the water body lower floor such as lake, reservoir, deep water river
In layer aeration repair process, because bottom hydraulic pressure is higher, such as depth of water 10m is equivalent to 1 atmospheric pressure, according to air aeration, empty
Nitrogen in gas can be dissolved into bottom water body in a large number.Aquatile especially Fish will be produced toxicity by too high dissolved nitrogen.As
Fruit adopts the bright pure oxygen aeration of this law, then can avoid this problem.
It is applied to culture fishery oxygen supplement, improve yield.In summer high temperature weather, when water temperature is more than 35 DEG C, water body is satisfied
With dissolved oxygen concentration less than 6.9mg/L, it is highly detrimental to the cultivation of high density aquatic product fishery.Using normal air aeration although temperature
Degree rising be conducive to lifted oxygen diffusion coefficient, but due under high temperature saturated concentration too low, Concentraton gradient is less, if cultivation close
Spend greatly or in the case of poor water quality, water body has the risk of severe depletion of oxygen.As the over-saturation pure oxygen aeration using the present invention,
Under 35 DEG C of high temperature, still can be filled with the oxygen-enriched current of up to 32.8 mg/L dissolved oxygen, meet fishery cultivating Production requirement.
The present invention can be additionally used in colliery, industries such as exploitation etc. of recovering the oil discharge acid waste water is administered.According to statistics, national coal at present
The annual discharge of ore deposit mine just reaches 42 billion cubic meters, and wherein quite a few waste water is less than 6 mine water for pH value.Acid waste water leads to
Often contain ferrous ion（Fe2+）With hydrogen sulfide (H2The pollutant such as S), if unprocessed directly outer arrange, great danger can be produced to environment
Evil.The important process for the treatment of of acidic wastewater is exactly aeration, by the ferrous ion in water（Fe2+）It is oxidized to ferric ion（Fe3+）
And form Fe (OH)3Precipitation removes, or the sulfide-oxidation being dissolved in mine water is become elemental sulfur precipitation to remove.Using present invention dress
Put the high concentration dissolved oxygen of generation, ferrous ion can be improved（Fe2+）With the transformation efficiency of sulfide, improve clearance, significantly carry
The purification efficiency of peracidity waste water.
Brief description
Fig. 1 is structural representation of the present utility model
Fig. 2 is that the liquidometer in Fig. 1 controls enlarged diagram.
It is embodied as explanation
The present invention will be further described below in conjunction with the accompanying drawings,
1 water inlet pipe, 2 water pumps, 3 oxygen hoses, 4 air intake control valves, 5 venturi air and liquid mixers, 6 serpentine pipe mixing
Device, 7 inverted cone contact chambers, 8 contact chamber gas cavity, 9 cross over pipes, 10 liquidometers, 11 emptying valves, 12 controllers,
13 outlet pipes
As shown in Figure 1, water inlet pipe 1 is connected 2 with water pump.Water pump connects venturi air and liquid mixer 5 through outlet pipe.Venturi
Oxygen hose 3 is connected in the middle part of air and liquid mixer.Entering between venturi air and liquid mixer in oxygen hose is air intake control valve 4.Civilian mound
In the outlet of air and liquid mixer 5 be connected with serpentine pipe blender 6 import.The mouth down that goes out of serpentine pipe blender 6 is connect with inverted cone
The top inlet of tactile room 7 connects.It is provided with cross over pipe 9 in the top-side of inverted cone contact chamber 7.In top cross over pipe 9 vertical section
Interior installation liquidometer 10.Connect emptying valve 11 in the horizontal tube of top cross over pipe 9.The outlet at bottom of inverted cone contact chamber 7 is even
Connected water outlet pipe 13.Through outlet pipe 13, current enter environment water.Controller 12 passes through holding wire, and one end is connected with liquidometer 10,
The other end is connected with air intake control valve 4.
As shown in Figure 2, the top-side in inverted cone contact chamber is provided with cross over pipe 9, pacifies in top cross over pipe 9 vertical section
Dress liquidometer 10.When oxygen is excessive, the rising bubble in inverted cone contact chamber 7 will merge gas cavity 8 at top.On top
The horizontal tube of portion's cross over pipe 9 connects emptying valve 11.
The workflow of the present invention is that current pass through water pump, enters the aerator of the present invention from water inlet pipe.Oxygen via
Oxygen hose is sufficiently mixed with swiftly flowing current in venturi air and liquid mixer.The amount of oxygen entering reactor is by air inlet control
Valve regulation.In oxygen and current after the instantaneous mixing of venturi air and liquid mixer, enter serpentine pipe blender.High in serpentine pipe
Under speed flowing, the centrifugal force of generation and shearing force make current be fully contacted with bubble, realize the quick dissolving of oxygen.High velocity stream
Then dynamic gas-liquid mixture is downwardly into inverted cone contact chamber.Inverted cone contact chamber, due to cross section by top-to-bottom by
Cumulative big, water velocity will constantly reduce.When inverted cone contact chamber bottom water flow decrease speed is less than bobble rise velocity, oxygen
Gas bubble is just " entrapped " inside cone, and realize oxygen 100% is utilized.
When oxygen gas flow is more than current dissolved oxygen necessary flow, in bubble uphill process, pressure reduces, bubble
Merge, contact chamber gas cavity will be formed at inverted cone contact chamber top.If this oxygen cavity is excessive, oxygen bubble will be reduced
In inverted cone contact chamber time of contact, even result in bubble and escape from aerator from bottom.Without cavity, oxygen flow is not
Foot, water outlet current may not reach saturated dissolved oxygen concentration.Connect top cross over pipe in the top-side of inverted cone contact chamber, interior
Liquidometer is installed.Liquidometer can adopt polytype liquidometer such as condenser type, pressure type, ultrasound wave.Liquidometer can be real-time
The size of contact chamber gas cavity is made a response, and sends signal to controller.By controller, adjust air intake control valve
Size, thus increasing or decreasing oxygen flow, reach gas-liquid flow dynamic equilibrium.Rate-determining steps are as follows, when oxygen flow mistake
Greatly, oxygen bubbless can gradually merge accumulation in inverted cone contact chamber, and contact chamber gas cavity increases, and liquid level reduces, and triggers liquidometer.
Liquidometer transmits a signal to controller, and control order air intake control valve is decreased or turned off oxygen flow.When the oxygen entering device
Throughput is less than needed for current during saturated dissolved oxygen flow, and the oxygen in contact chamber gas cavity will gradually be dissolved by current, liquid
Position will gradually rise, and when reaching certain liquid level, liquidometer will restPose, then be signaled to controller, controller
Feed gas control valve gate signal, increases or opens oxygen flow, again reach balance.
In the supporting emptying valve of top cross over pipe, for during device initial launch, discharging inverted cone contact interior
Air.
Through the oxygen-enriched current of the over-saturation of oxygenation, by the outlet pipe discharger of inverted cone contact chamber bottom, enter water
Body.In water body, oxygen-enriched current are mixed with ambient water, and dissolved oxygen quickly spreads, and realize the quick oxygenation of water body.
Claims (1)
1. a kind of over-saturation dissolved oxygen aerator, mixes including water inlet pipe, water pump, oxygen hose, air intake control valve, venturi gas-liquid
Clutch, serpentine pipe blender, inverted cone contact chamber, top cross over pipe, liquidometer, emptying valve, controller, outlet pipe, it is special
Levying is, water inlet pipe is connected with water pump, and water pump connects venturi air and liquid mixer through outlet pipe, connects in the middle part of venturi air and liquid mixer
Connect oxygen hose, entering between venturi air and liquid mixer in oxygen hose is air intake control valve, the outlet of venturi air and liquid mixer
It is connected with serpentine pipe blender import, the mouth down that goes out of serpentine pipe blender is connected with the top inlet of inverted cone contact chamber,
The top-side of inverted cone contact chamber is top cross over pipe, installs liquidometer, in top UNICOM in the cross over pipe vertical section of top
The horizontal tube of pipe connects emptying valve, and base diameter outlet connects outlet pipe, and through outlet pipe, current enter environment water, control
Device passes through holding wire, and one end is connected with liquidometer, and the other end is connected with air intake control valve；Current enter conical contact room it
Before, the preposition of increase is to install venturi air and liquid mixer and serpentine pipe blender additional.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620926569.5U CN205953680U (en) | 2016-08-24 | 2016-08-24 | Super supersaturated with dissolved oxygen aeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620926569.5U CN205953680U (en) | 2016-08-24 | 2016-08-24 | Super supersaturated with dissolved oxygen aeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205953680U true CN205953680U (en) | 2017-02-15 |
Family
ID=57977957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620926569.5U Expired - Fee Related CN205953680U (en) | 2016-08-24 | 2016-08-24 | Super supersaturated with dissolved oxygen aeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205953680U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115950A (en) * | 2016-08-24 | 2016-11-16 | 郑晓宇 | A kind of over-saturation dissolved oxygen aerator |
| WO2021030920A1 (en) * | 2019-08-21 | 2021-02-25 | Mancilla Barriga Jorge | System and method for the transport of biomass |
| GB2641739A (en) * | 2024-06-10 | 2025-12-17 | Vortech Water Solutions Ltd | Fluid treatment apparatus |
-
2016
- 2016-08-24 CN CN201620926569.5U patent/CN205953680U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115950A (en) * | 2016-08-24 | 2016-11-16 | 郑晓宇 | A kind of over-saturation dissolved oxygen aerator |
| WO2021030920A1 (en) * | 2019-08-21 | 2021-02-25 | Mancilla Barriga Jorge | System and method for the transport of biomass |
| GB2641739A (en) * | 2024-06-10 | 2025-12-17 | Vortech Water Solutions Ltd | Fluid treatment apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |