CN104043356B - Ultramicro air bubble generation device and water purification system and method - Google Patents
Ultramicro air bubble generation device and water purification system and method Download PDFInfo
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Abstract
The invention provides a kind of ultramicro air bubble generation device and water purification system and method, the ultramicro air bubble generation device includes high-pressure air feed machine, ejector, high-pressure hydraulic pump, gas-water mixer, the high-pressure air feed machine is connected with the gas-water mixer, the high-pressure hydraulic pump is connected with the ejector, and the high-pressure hydraulic pump is used to produce high-pressure water body and send into the ejector；The gas-water mixer is used to gases at high pressure and the progress contact of vaporific water droplet reaching that over-saturation is fused, so that forming over-saturation air water fuses liquid.The fused efficiency of air water and speed can not only be significantly improved by changing high-pressure water body form the beneficial effects of the invention are as follows ejector, but also the fused amount of gas can be increased, and is substantially reduced the volume of gas-water mixer；It is due to that the fused amount of gas is greatly improved although ejector needs power consumption, therefore the fused energy consumption of unit-gas is reduced on the contrary.
Description
Technical field
The present invention relates to sewage treatment area, more particularly to ultramicro air bubble generation device and water purification system and method.
Background technology
Water environment treatment is the weakness of China environmental protection, such as administers Dian Chi and has put into nearly 30,000,000,000 yuan, but quality of water environment
Do not improve.
With scientific and technological progress, reality has been developed into from laboratory stage using the water technology of microbubble purifying water body
The border application stage.The current country common are the technologies such as submicron bubble water treatment technology, micro-nano bubble generation technique, but
Comprehensive apparently this kind of technology does not tend to be ripe also, is primarily due to fail stabilization, equably produces a large amount of ultramicro air bubbles, so that
It is not good in effects of purification quality.
1. submicron bubble water treatment technology:
Using symmetrical balance type centrifugal multistage pump multiple centrifugal pump, clear water is sucked, the pressure of water is improved step by step to more than 0.35MPa；Enter
Entering gas-water mixer makes gas be mixed with water, and the body refuse that diameter in water is more than 0.35mm is filtered out by filtering, and produces 200
Nanometer is to 4 micron-sized bubbles.Add decoction in two times in cesspool, and bottom is stirred, sewage flocculation 8-15 minutes
Afterwards, met with above-mentioned 200 nanometers to 4 micron-sized bubbles, both fully combine, promote flco proportion to mitigate and float；Both
Sewage after fully combining enters separate tank from the middle and upper part of flotation tank, is stopped 20-40 minutes in separate tank, makes slag and water
It is sufficiently separated；The slag of floating is scraped in sludge-tank by Slag Scraping Device；Clear water is drawn from separate tank bottom by pipeline.
2. cyclic gas-liquid mixing type, micro-nano bubble generation technique：
As shown in figure 1, the liquid into air and liquid mixer rotates at a high speed under pressure, strong liquid is formed rapid
Stream, water enters blender from upper wall, and the liquid of rotation forms negative pressuren zone at the axis of blender at a high speed, and air is then from axle center
Place is sucked into the edge outflow from both sides under the flow action of high speed rotation, is crashed to pieces into the bubble at axle center
For the superfine air bubble of a diameter of micro/nano level, the function of clean water can be played, the rotary speed of liquid stream is faster, to bubble
Pulverization is stronger.
The shortcoming of technology is at present：
1. energy consumption and operating cost are higher；
2. bubble generation efficiency is low, generation bubbles volume is uneven, unstable, causes pollutant process efficiency low, water outlet water
Matter is unstable；
3. bubble generation process poor controllability, is unfavorable for popularization and application.
The content of the invention
In order to solve the problems of the prior art, the invention provides a kind of ultramicro air bubble generation device.
The invention provides a kind of ultramicro air bubble generation device, including high-pressure air feed machine, ejector, high-pressure hydraulic pump, air water
Blender, the high-pressure air feed machine is connected with the gas-water mixer, and the high-pressure air feed machine is used to produce gases at high pressure and send
Enter in the gas-water mixer；The high-pressure hydraulic pump is connected with the ejector, and the high-pressure hydraulic pump is used to produce high-pressure water body
And send into the ejector；The ejector is connected with the gas-water mixer, and the ejector is used for high-pressure water body is high
Speed injection and it is vaporific in dissipating, and suck under the suction function formed air, vaporific water droplet is fused with sucking air, and
Vaporific water droplet is sent into the gas-water mixer；The gas-water mixer is used to be contacted gases at high pressure with vaporific water droplet
Reach that over-saturation is fused, so that forming over-saturation air water fuses liquid.
As a further improvement on the present invention, the ultramicro air bubble generation device also includes the vortex for being used to stablize decompression step by step
Ultra micro voltage-stablizer, the vortex ultra micro voltage-stablizer is connected with the gas-water mixer, and the vortex ultra micro voltage-stablizer is used to receive
The over-saturation air water of the gas-water mixer output fuses liquid.
As a further improvement on the present invention, the ultramicro air bubble generation device also includes regulation agent container, conditioning agent conveying
Mechanism, the vortex ultra micro voltage-stablizer is delivered to by the conditioning agent conveying mechanism by the conditioning agent in the regulation agent container
It is interior.
As a further improvement on the present invention, the conditioning agent conveying mechanism includes measuring pump, and the ultramicro air bubble produces dress
Put the rabbling mechanism for also including being used to be stirred the conditioning agent in the regulation agent container.
Present invention also offers a kind of ultramicro air bubble production method, comprise the following steps：
Gases at high pressure produce step：For producing gases at high pressure；
Vaporific water droplet produces step：It is vaporific in dissipating for high-pressure water body to be sprayed at a high speed, and make in the negative pressure formed
With lower suction air, vaporific water droplet is fused with suction air；
Blend step：Reach that over-saturation is fused for gases at high pressure and vaporific water droplet to be carried out into contact, so as to form super full
Gentle water-soluble conjunction liquid.
As a further improvement on the present invention, the ultramicro air bubble production method also includes：
Depressurization step：Carry out stablizing decompression step by step for over-saturation air water to be fused into liquid.
As a further improvement on the present invention, the ultramicro air bubble production method also includes：
Regulating step：Mixed for over-saturation air water to be fused into liquid with the conditioning agent, water is weakened by conditioning agent
Intermolecular hydrogen bond, so as to reduce the surface tension of hydrone, it is easy to form ultramicro air bubble；
Export step：In the presence of decompression is stablized step by step, over-saturation high-pressure air-water fuses liquid and stably discharges ultra micro gas
Bubble.
As a further improvement on the present invention, in the gases at high pressure produce step, produced by high-pressure air feed machine high
Calm the anger body；
In the vaporific water droplet produces step, high-pressure water body is produced by high-pressure hydraulic pump, by ejector by water under high pressure
Body at a high speed injection and it is vaporific in dissipating, and suck under the suction function formed air, vaporific water droplet with suck air be able to it is molten
Close；
In the blend step, gases at high pressure and vaporific water droplet are carried out by contact by gas-water mixer and reach over-saturation
It is fused, so that forming over-saturation air water fuses liquid；
In the depressurization step, over-saturation air water is fused by liquid by vortex ultra micro voltage-stablizer and carries out stablizing drop step by step
Pressure；
In the regulating step, by the way that the conditioning agent adjusted in agent container is delivered in the vortex ultra micro voltage-stablizer
Make over-saturation air water fuse liquid to be mixed with conditioning agent；
In the output step, liquid will be fused with the mixed over-saturation air water of conditioning agent from vortex ultra micro voltage-stablizer
Discharge ultramicro air bubble.
Include the water purification system of the ultramicro air bubble generation device present invention also offers a kind of, the water purification system is also
Including reaction tank, Slag Scraping Device, the reaction tank is used to make ultramicro air bubble and sewage be mixed wherein, so that polluter
Float to water surface formation foam；The Slag Scraping Device is used to defoam.
Include the method for purifying water of the ultramicro air bubble production method present invention also offers a kind of, the method for purifying water is also
Including：
Reactions steps：For ultramicro air bubble and sewage to be mixed, so that polluter floats to water surface formation bubble
Foam；
Removal step：For defoaming.
The beneficial effects of the invention are as follows：Ejector can not only significantly improve the fused effect of air water by changing high-pressure water body form
Rate and speed, but also the fused amount of gas can be increased, and it is substantially reduced the volume of gas-water mixer；Although ejector needs consumption
Can, but be due to that the fused amount of gas is greatly improved, therefore the fused energy consumption of unit-gas is reduced on the contrary.
Brief description of the drawings
Fig. 1 is the schematic diagram rotated at a high speed under pressure into the liquid of air and liquid mixer.
Fig. 2 is the principle schematic of the embodiment of ultramicro air bubble generation device one of the present invention.
Fig. 3 is the principle schematic of another embodiment of ultramicro air bubble generation device of the present invention.
Embodiment
We propose the research and product development of ultramicro air bubble generating means emphatically on the basis of early-stage Study experiment,
Be intended to develop energy consumption it is low, simple to operate, can automatic running ultramicro air bubble generation device so that it is systematically a large amount of produce it is steady
Fixed, uniform ultramicro air bubble, to realize that the water technology technique for carrying out purification of water quality using ultramicro air bubble can be at actual water
The purpose of reason field popularization and application.As shown in Fig. 2 the invention discloses a kind of ultramicro air bubble generation device, including high-pressure air feed
Machine 1, ejector 2, high-pressure hydraulic pump 3, gas-water mixer 4, the high-pressure air feed machine 1 are connected with the gas-water mixer 4, the height
Pressure air feeder 1 is used to produce gases at high pressure and send into the gas-water mixer 4；The high-pressure hydraulic pump 3 and the phase of ejector 2
Even, the high-pressure hydraulic pump 3 is used to produce high-pressure water body and send into the ejector 2；The ejector 2 and the mixing wastewater with air
Device 4 is connected, and it is in dissipate vaporific that the ejector 1, which is used for the injection of high-pressure water body high speed, and is inhaled under the suction function formed
Enter air, vaporific water droplet is fused with suction air, and vaporific water droplet is sent into the gas-water mixer 4；The air water
Blender 4 is used to gases at high pressure and the progress contact of vaporific water droplet reaching that over-saturation is fused, and is fused so as to form over-saturation air water
Liquid.
Operationally, high intensity supercharging is carried out to water body first with high-pressure hydraulic pump 3, high-pressure water body first passes around ejector
2, water under high pressure at a high speed injection and it is vaporific in dissipating, and suck under the suction function formed air, vaporific water droplet and suction air
It is able to effectively fused.Then, vaporific water droplet enters gas-water mixer 4, fully contacts and is rapidly reached super with gases at high pressure
Saturation is fused to fuse liquid so as to form over-saturation air water, after gas-water mixer 4 reaches that design pressure and liquid hold, the over-saturation in it
Air water fuses liquid and automatically continuously discharges ultramicro air bubble.
Ultramicro air bubble includes micron order, submicron-sized bubbles.
As shown in figure 3, the ultramicro air bubble generation device also includes the vortex ultra micro voltage-stablizer 5 for being used to stablize decompression step by step,
The vortex ultra micro voltage-stablizer 5 is connected with the gas-water mixer 4, and the vortex ultra micro voltage-stablizer 5 is used to receive the air water
The over-saturation air water that blender 4 is exported fuses liquid.The ultramicro air bubble generation device also includes regulation agent container 6, conditioning agent conveying
Mechanism, the vortex ultra micro voltage stabilizing is delivered to by the conditioning agent conveying mechanism by the conditioning agent in the regulation agent container 6
In device 5.
The conditioning agent conveying mechanism includes measuring pump 7, and the ultramicro air bubble generation device also includes being used for the regulation
The rabbling mechanism 8 that conditioning agent in agent container 6 is stirred.
During work, the over-saturation air water in gas-water mixer 4 fuses liquid and enters the tune after vortex ultra micro voltage-stablizer 5 and added
Agent mixing is saved, conditioning agent can weaken the hydrogen bond between hydrone, so as to reduce the surface tension of hydrone, it is easy to form ultra micro gas
Bubble.In the presence of vortex ultra micro voltage-stablizer 5 stablizes decompression step by step, over-saturation high-pressure air-water fuses liquid energy and stably discharged largely
Intensive micron order, submicron-sized bubbles, it is to avoid pressure difference moment is excessive and causes bubbles volume is unstable, Air Bubble Size is uneven etc.
Problem.
The invention also discloses a kind of ultramicro air bubble production method, comprise the following steps：
Gases at high pressure produce step：For producing gases at high pressure；
Vaporific water droplet produces step：It is vaporific in dissipating for high-pressure water body to be sprayed at a high speed, and make in the negative pressure formed
With lower suction air, vaporific water droplet is fused with suction air；
Blend step：Reach that over-saturation is fused for gases at high pressure and vaporific water droplet to be carried out into contact, so as to form super full
Gentle water-soluble conjunction liquid.
The ultramicro air bubble production method also includes：
Depressurization step：Carry out stablizing decompression step by step for over-saturation air water to be fused into liquid.In the depressurization step, pass through
Over-saturation air water is fused liquid by vortex ultra micro voltage-stablizer to carry out stablizing decompression step by step.
The ultramicro air bubble production method also includes：
Regulating step：Mixed for over-saturation air water to be fused into liquid with the conditioning agent, water is weakened by conditioning agent
Intermolecular hydrogen bond, so as to reduce the surface tension of hydrone, it is easy to form ultramicro air bubble；
Export step：In the presence of decompression is stablized step by step, over-saturation high-pressure air-water fuses liquid and stably discharges ultra micro gas
Bubble.
In the gases at high pressure produce step, gases at high pressure are produced by high-pressure air feed machine；
In the vaporific water droplet produces step, high-pressure water body is produced by high-pressure hydraulic pump, by ejector by water under high pressure
Body at a high speed injection and it is vaporific in dissipating, and suck under the suction function formed air, vaporific water droplet with suck air be able to it is molten
Close；
In the blend step, gases at high pressure and vaporific water droplet are carried out by contact by gas-water mixer and reach over-saturation
It is fused, so that forming over-saturation air water fuses liquid；
In the regulating step, by the way that the conditioning agent adjusted in agent container is delivered in the vortex ultra micro voltage-stablizer
Make over-saturation air water fuse liquid to be mixed with conditioning agent；
In the output step, liquid will be fused with the mixed over-saturation air water of conditioning agent from vortex ultra micro voltage-stablizer
Discharge ultramicro air bubble.
Include the water purification system of the ultramicro air bubble generation device the invention also discloses a kind of, the water purification system is also
Including reaction tank, Slag Scraping Device, the reaction tank is used to make ultramicro air bubble and sewage be mixed wherein, so that polluter
Float to water surface formation foam；The Slag Scraping Device is used to defoam.
During work, ultramicro air bubble enters reaction tank, after being mixed with sewage, and polluter floats to water surface formation foam, leads to
Slag Scraping Device removal is crossed, so that removal water pollutant is reached, the target of purifying water body.
Include the method for purifying water of the ultramicro air bubble production method the invention also discloses a kind of, the method for purifying water is also
Including：
Reactions steps：For ultramicro air bubble and sewage to be mixed, so that polluter floats to water surface formation bubble
Foam；
Removal step：For defoaming.
Quality problem root is Organic substance in water（COD）, N, P it is exceeded, suspension（SS）Concentration is high, and dissolved oxygen concentration is low,
COD, N, P, SS are only effectively removed, and could thoroughly solve quality problem to water body oxygenation simultaneously.Therefore, the present invention is passed through
Water purification system and method can quickly remove various pollutants in water body, to reach the purpose of purifying water body, its principle is such as
Under：
1. settle and rupture rapidly in the irregular microbubble short time, the energy transfer produced during with microbubbles rupture,
Hydrogen bond and hydrone covalent bond between hydrone are broken simultaneously, hydrone decomposed, produce the extremely strong hydrogen-oxygen of oxidisability
The free electron carrier such as base, oxygen radical, the oxidation of hydroxyl free radical is especially apparent, can be by Organic substance in water（COD）Directly
Decomposition is connect, and with sterilization and decolouring function.
2. the ultramicro air bubble of micron order, submicron order can not only the suspension such as colloid, silt that directly wrapped folder is lived in water,
Suspension is floated up into water surface formation foam under the collective effect of flocculant, so as to be separated from water body, quick reduction
SS contents in water, improve water transparency, and can adhere to the algae in water simultaneously, and separate and remove, by being dropped rapidly except algae
Low N, P content.
3. the free radical produced during with microbubbles rupture so that water body has stronger oxidative function, can with water
Heavy metal ion combine to form oxide, then by ultramicro air bubble by heavy metallic oxide wrapped folder, float up to the water surface and formed
Foam is so as to be removed.
4. the ammonia nitrogen in water is generally with ammonium ion（NH4+）And free ammonia（NH3）State exist, a large amount of ultramicro air bubbles enter
Enter after water body, free ammonia（NH3）With the floating of ultramicro air bubble, stripping comes out for meeting, ammonium ion（NH4+）Also can be with hydrogen-oxygen root knot
Close：, the NH3 of generation also separates by stripping therewith.
5. ultramicro air bubble significantly increases the contact area of air and water, oxygen molecule easily dissolves in the micel gap of water
In, 85% oxygen is there are about in air to be completely dissolved in water, the dissolved oxygen in water is reached supersaturation.
The present invention has the lower beneficial effect of bag：
Ejector can not only significantly improve the fused efficiency of air water and speed by changing high-pressure water body form, but also can increase
The fused amount of atmospheric, and it is substantially reduced the volume of gas-water mixer；It is due to the fused amount of gas although ejector needs power consumption
Greatly improve, therefore the fused energy consumption of unit-gas is reduced on the contrary.
Weaken the hydrogen bond between hydrone by adding conditioning agent, so as to reduce the surface tension of water, do not improve system
In the case of energy consumption, it can promote to be formed largely stable ultramicro air bubble.
Vortex ultra micro voltage-stablizer can stablize decompression step by step so that high-pressure water body stably discharge a large amount of intensive micron orders,
Submicron-sized bubbles, it is to avoid pressure difference moment is excessive and causes the problems such as bubbles volume is unstable, Air Bubble Size is uneven.
The present invention is strong to various contaminant removal capacities, and oxygen-transfer efficiency is high, without the chemical agent of any polluted water,
It is ecological good, the water process requirement in the case of different quality can be met, river, lake water, landscape water and sanitary sewage is can be applied to
Deng processing, and restored ecosystem can be helped and good landscape effect is formed.
The present invention is easily achieved fully automatic operation, and simple and convenient operation and maintenance is conducive to popularization and application.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (8)
1. a kind of ultramicro air bubble generation device, it is characterised in that：Including high-pressure air feed machine, ejector, high-pressure hydraulic pump, mixing wastewater with air
Device, the high-pressure air feed machine is connected with the gas-water mixer, and the high-pressure air feed machine is used to produce gases at high pressure and sends into institute
State in gas-water mixer；The high-pressure hydraulic pump is connected with the ejector, and the high-pressure hydraulic pump is used to produce high-pressure water body and send
Enter in the ejector；The ejector is connected with the gas-water mixer, and the ejector is used at a high speed spray high-pressure water body
Penetrate and vaporific in dissipating, and suck under the suction function formed air, water body and suction air are sprayed in vaporific high speed is dissipated
Fused, form vaporific water droplet；The gas-water mixer is super full for gases at high pressure and the progress contact of vaporific water droplet to be reached
With it is fused so that forming over-saturation air water fuses liquid；The ultramicro air bubble generation device also includes the rotation for being used to stablize decompression step by step
Whirlpool ultra micro voltage-stablizer, the vortex ultra micro voltage-stablizer is connected with the gas-water mixer, and the vortex ultra micro voltage-stablizer is used to connect
The over-saturation air water for receiving the gas-water mixer output fuses liquid；The ultramicro air bubble generation device also includes regulation agent container, adjusted
Agent conveying mechanism is saved, the conditioning agent in the regulation agent container is delivered into the vortex by the conditioning agent conveying mechanism surpasses
In micro- voltage-stablizer.
2. ultramicro air bubble generation device according to claim 1, it is characterised in that：The conditioning agent conveying mechanism includes meter
Pump is measured, the ultramicro air bubble generation device also includes the mixer for being used to be stirred the conditioning agent in the regulation agent container
Structure.
3. a kind of ultramicro air bubble production method, it is characterised in that comprise the following steps：
Gases at high pressure produce step：For producing gases at high pressure；
Vaporific water droplet produces step：It is vaporific in dissipating for high-pressure water body to be sprayed at a high speed, and under the suction function formed
Air is sucked, is fused, is formed and vaporific water droplet with suction air in vaporific high speed injection water body is dissipated；
Blend step：Reach that over-saturation is fused for gases at high pressure and vaporific water droplet to be carried out into contact, so as to form over-saturation gas
Water-soluble conjunction liquid.
4. ultramicro air bubble production method according to claim 3, it is characterised in that the ultramicro air bubble production method is also wrapped
Include：
Depressurization step：Carry out stablizing decompression step by step for over-saturation air water to be fused into liquid.
5. ultramicro air bubble production method according to claim 4, it is characterised in that the ultramicro air bubble production method is also wrapped
Include：
Regulating step：Mixed for over-saturation air water to be fused into liquid with conditioning agent, by between conditioning agent decrease hydrone
Hydrogen bond, so as to reduce the surface tension of hydrone, it is easy to form ultramicro air bubble；
Export step：In the presence of decompression is stablized step by step, over-saturation high-pressure air-water fuses liquid and stably discharges ultramicro air bubble.
6. ultramicro air bubble production method according to claim 5, it is characterised in that：
In the gases at high pressure produce step, gases at high pressure are produced by high-pressure air feed machine；
In the vaporific water droplet produces step, high-pressure water body is produced by high-pressure hydraulic pump, it is by ejector that high-pressure water body is high
Speed injection and it is vaporific in dissipating, and suck under the suction function formed air, water body and suction sprayed in vaporific high speed is dissipated
Air is fused, and forms vaporific water droplet；
In the blend step, gases at high pressure and vaporific water droplet are carried out by contact by gas-water mixer and reach that over-saturation is molten
Close, so that forming over-saturation air water fuses liquid；
In the depressurization step, over-saturation air water is fused by liquid by vortex ultra micro voltage-stablizer and carries out stablizing decompression step by step；
In the regulating step, make to surpass by the way that the conditioning agent adjusted in agent container is delivered in the vortex ultra micro voltage-stablizer
The water-soluble liquid that closes of saturated air is mixed with conditioning agent；
In the output step, liquid will be fused with the mixed over-saturation air water of conditioning agent and discharged from vortex ultra micro voltage-stablizer
Ultramicro air bubble.
7. a kind of include the water purification system of any one of claim 1 to the 2 ultramicro air bubble generation device, it is characterised in that：
The water purification system also includes reaction tank, Slag Scraping Device, and the reaction tank is used to make ultramicro air bubble and sewage be mixed wherein,
So that polluter floats to water surface formation foam；The Slag Scraping Device is used to defoam.
8. a kind of include the method for purifying water of any one of claim 3 to the 6 ultramicro air bubble production method, it is characterised in that
The method for purifying water also includes：
Reactions steps：For ultramicro air bubble and sewage to be mixed, so that polluter floats to water surface formation foam；
Removal step：For defoaming.
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| CN107020027A (en) * | 2017-05-25 | 2017-08-08 | 厦门大学 | Micro air bubble generating means |
| CN112479527A (en) * | 2019-09-11 | 2021-03-12 | 南京延长反应技术研究院有限公司 | System and method for treating industrial sludge by micro-interface enhanced wet oxidation method |
| CN113351040A (en) * | 2021-06-29 | 2021-09-07 | 广东吉之源环保科技有限公司 | Double-rotary high-energy ultra-fine bubble generator |
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| KR100843970B1 (en) * | 2008-03-20 | 2008-07-03 | 유정호 | Apparatus of generating microbubble |
| KR101171854B1 (en) * | 2010-03-31 | 2012-08-07 | 김영식 | Apparatus for generating micro bubble |
| KR101058165B1 (en) * | 2010-12-23 | 2011-08-22 | 주식회사 엠비텍 | Fine air bubble generating and control apparatus |
| JP2013071047A (en) * | 2011-09-27 | 2013-04-22 | Yanagida Sangyo Kk | Microbubble generation device, and antifouling system for condenser using the same |
| CN102815799B (en) * | 2012-05-30 | 2014-05-21 | 深圳市华水环保科技有限公司 | Nanometer foam oxygen increase generator |
| KR20140065745A (en) * | 2012-11-21 | 2014-05-30 | 현대중공업 주식회사 | Forced fluids collision injection type micro bubble instrument |
| CN103055730B (en) * | 2013-01-28 | 2014-12-10 | 四川泰喏科技有限公司 | Preparation method of micro oxygen bubbles |
| CN203155162U (en) * | 2013-04-03 | 2013-08-28 | 马鞍山市黄河水处理工程有限公司 | Air-water blending generator of ultramicro bubbles |
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