CN212819194U - Micro-nano bubble generating device - Google Patents
Micro-nano bubble generating device Download PDFInfo
- Publication number
- CN212819194U CN212819194U CN202021624949.6U CN202021624949U CN212819194U CN 212819194 U CN212819194 U CN 212819194U CN 202021624949 U CN202021624949 U CN 202021624949U CN 212819194 U CN212819194 U CN 212819194U
- Authority
- CN
- China
- Prior art keywords
- micro
- nano bubble
- cavity
- gas
- liquid
- 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.)
- Active
Links
- 239000002101 nanobubble Substances 0.000 title claims abstract description 88
- 239000007788 liquid Substances 0.000 claims abstract description 95
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000005276 aerator Methods 0.000 claims abstract description 48
- 239000007789 gas Substances 0.000 claims description 42
- 230000008602 contraction Effects 0.000 claims description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000011282 treatment Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- 239000003570 air Substances 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000005273 aeration Methods 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
Images
Abstract
The utility model discloses a micro-nano bubble generating device, including water pump, gas-liquid mixture pressure vessel, micro-nano bubble aerator, air supply and electrical unit. The water inlet of the water pump is connected with a water inlet pipeline, the water outlet of the water pump is connected with a gas-liquid mixing pressure container through a pipeline, and the gas-liquid mixing pressure container is connected with the micro-nano bubble aerator through a pipeline; the gas source is respectively connected with the gas-liquid mixing pressure container and the micro-nano bubble aerator; the micro-nano bubble aerator is connected with the water outlet pipeline. The utility model has the advantages that the particle size of the generated micro-nano bubbles is smaller through the primary mixing of the gas-liquid mixing pressure container and the secondary mixing of the micro-nano bubble aerator; through the pressure of intaking of real-time supervision micro-nano bubble aerator, make micro-nano bubble particle diameter more homogeneous, through the gaseous dissolved concentration in aqueous of gas sensor real-time supervision, can switch the air supply and adjust the air input according to the demand, adjust the dissolved concentration of gas in aqueous in real time.
Description
Technical Field
The utility model particularly relates to a micro-nano bubble generating device can be applied to the gas-liquid mixture, belongs to water treatment technical field.
Background
Because the micro-nano bubbles have the characteristics of large specific surface area, long retention time, high interface potential, free radical generation, mass transfer enhancement and the like, the micro-nano bubbles have excellent application prospects in various fields, such as: sewage treatment, plant cultivation, new material preparation, cleaning, mineral flotation and the like.
The existing micro-nano bubble generating devices are various in types, and different in process and main component parts. Some pumps are combined with micro-nano bubble aeration heads to generate micro-nano bubbles, and the gas-liquid mixing pumps can achieve a certain gas-liquid mixing effect but have a low gas-liquid ratio; some micro-nano bubbles are generated by the combination of a pump, a gas-liquid mixing pressure container and an ejector/sprayer, and the micro-nano bubbles generated by the ejector or the sprayer have large and uneven particle sizes and the like.
SUMMERY OF THE UTILITY MODEL
The utility model provides a micro-nano bubble generating device realizes the double-phase mixed intensive mixing of gas-liquid, can dissolve various gases into aquatic like air, oxygen, nitrogen gas, ozone, hydrogen, carbon dioxide, inert gas etc. but wide application in fields such as environmental protection water treatment, farming, aquaculture, ore flotation, tail gas treatment, cleaning and disinfection, bathing health care.
A micro-nano bubble generating device comprises a water pump, a gas-liquid mixing pressure container, a micro-nano bubble aerator, a gas source and an electric control unit; the water inlet of the water pump is connected with a water inlet pipeline, the water outlet of the water pump is connected with a gas-liquid mixing pressure container through a pipeline, and the gas-liquid mixing pressure container is connected with the micro-nano bubble aerator through a pipeline; the gas source is respectively connected with the gas-liquid mixing pressure container and the micro-nano bubble aerator through gas pipelines; the micro-nano bubble aerator is connected with a water outlet pipeline; the electric control unit is electrically connected with each component.
The micro-nano bubble aerator comprises a liquid inlet pipe, a gas-liquid mixing cavity, an air inlet passage and a liquid outlet passage; wherein,
the gas-liquid mixing cavity comprises a rotary cavity and a contraction cavity; the air inlet passage comprises an air inlet pipe, an air distribution cavity and an air outlet which are connected in sequence; the liquid outlet passage comprises a water outlet cavity, a confluence cavity and a liquid outlet pipe;
the liquid inlet pipe is tangentially connected with the rotary cavity; the rotary cavity is connected with the contraction cavity; the diameter of the contraction cavity is gradually reduced outwards from the spiral cavity, and the end with the smaller diameter is connected with the water outlet cavity; the other end of the water outlet cavity is connected with the converging cavity; the other end of the confluence cavity is connected with a liquid outlet pipe; the air outlet is positioned in the water outlet cavity and is opposite to the center of the contraction cavity, and the air outlet is positioned at the outer port of the contraction cavity or extends into the outer port of the contraction cavity for a certain distance.
Preferably, the left side and the right side of the rotary cavity are symmetrically provided with contraction cavities, and correspondingly, the two air outlets and the two water outlet cavities are also symmetrically arranged at the outer ports of the two contraction cavities.
Under the optimal condition, a pressure gauge, a pressure stabilizing valve or a pressure sensor can be arranged on a liquid inlet pipe of the micro-nano bubble aerator, so that the liquid inlet pressure can be monitored and adjusted at any time, and the stable pressure is kept, thereby ensuring that the particle size of the generated micro-nano bubbles is more uniform.
Preferably, a check valve is arranged on an air inlet pipe of the micro-nano bubble aerator to prevent liquid from flowing back to enter an air inlet passage; still can set up gas flowmeter in the intake pipe, air compressor or other air supplies can be connected to the air supply, can switch the air supply and adjust the air input according to the demand to keep stably producing micro-nano bubble.
Under the preferred circumstances, can connect dissolved oxygen sensor or other gas sensors on micro-nano bubble aerator's the drain pipe to the dissolved concentration condition of gas in liquid is monitored in real time, and feed liquor pressure and air input are adjusted in time, guarantee the sufficient dissolved concentration of gas in liquid.
Furthermore, the micro-nano bubble aerator is provided with external threads on a liquid inlet pipe and a liquid outlet pipe, so that the micro-nano bubble aerator can be conveniently and quickly connected to a system pipeline.
Further, micro-nano bubble aerator still includes the shell, and except that feed liquor pipe and drain pipe stretch out the shell, other parts all set up in the shell. The shell can protect the inner pipeline, and the micro-nano bubble aerator is simple in appearance and convenient to mount.
Preferably, a plurality of groups of micro-nano bubble aerators are connected in parallel on the main pipeline to realize larger treatment capacity.
Further, the air source is an air compressor or an air storage container, and the air source includes but is not limited to: air, oxygen, nitrogen, ozone, hydrogen, carbon dioxide, inert gases, and the like.
When the micro-nano bubble generating device is adopted, the liquid is sucked into the gas-liquid mixing pressure container by the water pump, the gas is input into the gas-liquid mixing pressure container by the gas source, and the gas and the liquid are subjected to primary mixing in the gas-liquid mixing pressure container; and the gas-liquid mixed fluid enters the micro-nano bubble aerator to be subjected to high-speed rotary cutting and gas-liquid secondary mixing to generate a large amount of micro-nano bubbles. The electric control unit respectively controls each part to work orderly.
The utility model has the advantages that: the micro-nano bubbles generated by primary mixing of the gas-liquid mixing pressure container and secondary mixing of the micro-nano bubble aerator have smaller particle size; through the pressure of intaking of real-time supervision micro-nano bubble aerator, make micro-nano bubble particle diameter more homogeneous, through the gaseous dissolved concentration in aqueous of gas sensor real-time supervision, can switch the air supply and adjust the air input according to the demand, adjust the dissolved concentration of gas in aqueous in real time.
Drawings
Fig. 1 is a schematic view of the micro-nano bubble generating device of the present invention;
FIG. 2 is a schematic front cross-sectional view of a micro-nano bubble aerator;
fig. 3 is a schematic side sectional view of the micro-nano bubble aerator.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, the micro-nano bubble generating device of the present invention mainly comprises: the device comprises a water pump 7, a gas-liquid mixed pressure container 8, a micro-nano bubble aerator 9, a gas source 10 and an electric control unit 12.
A water inlet of the water pump 7 is connected with a water inlet pipeline 6, a water outlet of the water pump is connected with a gas-liquid mixing pressure container 8 through a pipeline, and the gas-liquid mixing pressure container 8 is connected with a micro-nano bubble aerator 9 through a pipeline; the gas source 4 is respectively connected with the gas-liquid mixing pressure container 8 and the micro-nano bubble aerator 9 through gas pipelines, and the micro-nano bubble aerator 9 is connected with the water outlet pipeline 11.
Specifically, the water pump 7 may be a single-stage centrifugal pump or a multistage centrifugal pump.
Specifically, the air source 10 is an air compressor or an air storage container, and the air source includes, but is not limited to: air, oxygen, nitrogen, ozone, hydrogen, carbon dioxide, inert gases, and the like.
As shown in fig. 2-3, the micro-nano bubble aerator of the present invention comprises: the device comprises a shell 1, a liquid inlet pipe 2, a gas-liquid mixing cavity 3, a gas inlet passage and a liquid outlet passage.
The gas-liquid mixing cavity 3 comprises a convolution cavity 3-1 and a contraction cavity 3-2; the air inlet passage comprises an air inlet pipe 4-1, an air distribution cavity 4-2 and an air outlet 4-3 which are connected in sequence; the liquid outlet passage comprises a water outlet cavity 5-1, a confluence cavity 5-2 and a liquid outlet pipe 5-3. The air inlet pipe 4-1 is connected with an air source 10, and the liquid outlet pipe 5-3 is connected with a water outlet pipeline 11.
The liquid inlet pipe 2 is tangentially connected with the rotary cavity 3-1; the convolution cavity 3-1 is connected with the contraction cavity 3-2; the diameter of the contraction cavity 3-2 is gradually reduced from the rotation cavity 3-1 outwards, and the end with the smaller diameter is connected with the water outlet cavity 5-1; the other end of the water outlet cavity 5-1 is connected with the converging cavity 5-2; the other end of the converging cavity 5-2 is connected with a liquid outlet pipe 5-3; the air outlet 4-3 is positioned in the water outlet cavity 5-1 and is opposite to the center of the contraction cavity 3-2, and the air outlet 4-3 is arranged at the outer port of the contraction cavity 3-2 or slightly extends into the outer port of the contraction cavity 3-2 for a certain distance.
In a specific case, the contraction cavity 3-2 can be arranged on one side of the convolution cavity 3-1, or the contraction cavities 3-2 can be arranged on the left side and the right side of the convolution cavity 3-1; in the embodiment shown in the drawings, the retraction cavity 3-2 is preferably symmetrically arranged at the left and right sides of the rotation cavity 3-1, and correspondingly, the two air outlets 4-3 and the two water outlet cavities 5-1 are also symmetrically arranged at the outer ports of the two retraction cavities 3-2.
Under the optimal condition, a pressure gauge, a pressure stabilizing valve or a pressure sensor can be arranged on the liquid inlet pipe 2, the liquid inlet pressure can be monitored and adjusted at any time, and the stable pressure is kept, so that the particle size of the generated micro-nano bubbles is more uniform.
Preferably, the air inlet pipe 4-1 is provided with a check valve to prevent liquid from flowing back to enter the air inlet passage; the air inlet pipe 4-1 can be also provided with a gas flow meter, the gas source can be connected with an air compressor or other gas sources, and the gas source can be switched and the air input can be adjusted according to requirements, so that micro-nano bubbles can be stably generated.
Under the preferable condition, the liquid outlet pipe 5-3 can be connected with a dissolved oxygen sensor or other gas sensors to monitor the dissolved concentration condition of gas in liquid in real time, adjust the liquid inlet pressure and the air inflow in time and ensure the sufficient dissolved concentration of gas in liquid.
Furthermore, the liquid inlet pipe 2 and the liquid outlet pipes 5-3 are provided with external threads, so that the liquid inlet pipe and the liquid outlet pipes can be conveniently and quickly connected to a system pipeline.
Preferably, a plurality of groups of micro-nano bubble aerators are connected in parallel on the main pipeline to realize larger treatment capacity.
The utility model provides a micro-nano bubble aerator produces micro-nano bubble's theory of operation does: the liquid with pressure enters the spiral cavity 3-1 from the liquid inlet pipe 2 at a certain flow rate, and flows in the spiral cavity 3-1 in a high-speed spiral way and flows into the contraction cavity 3-2; the diameter of the contraction cavity 3-2 is gradually reduced, the flow rate of the liquid is accelerated, the pressure is reduced, and negative pressure is formed on the central axis; gas enters from the gas inlet pipe 4-1, flows along the gas distribution cavity 4-2 to the gas outlet 4-3, is sucked into the gas-liquid mixing cavity 3 by the negative pressure of the central axis of the contraction cavity 3-2, and the gas and the liquid are revolved at high speed in the gas-liquid mixing cavity 3 to be sheared and fully mixed to generate micro-nano bubbles; finally, the micro-nano bubbles flow into the converging cavity 5-2 through the water outlet cavity 5-1 and are discharged at a certain pressure and flow rate along the liquid outlet pipe 5-3.
In a specific situation, various switches and detection instruments of the water pump 7, the gas-liquid mixed pressure container 8, the micro-nano bubble aerator 9 and the gas source 10 are electrically connected with the electric control unit 12.
The utility model discloses a micro-nano bubble generating device application method: the water pump 7 sucks liquid into the gas-liquid mixing pressure container 8, the gas source 10 inputs gas into the gas-liquid mixing pressure container 8, and the gas and the liquid are mixed in the gas-liquid mixing pressure container 8 in a first stage; the gas-liquid mixed fluid enters a micro-nano bubble aerator 9 for high-speed rotary cutting and gas-liquid secondary mixing to generate a large amount of micro-nano bubbles; the air source 10 can also directly input air into the micro-nano bubble aerator 9 to generate micro-nano bubbles. The electronic control unit 12 controls each component to work orderly. The micro-nano bubbles generated by primary mixing of the gas-liquid mixing pressure container and secondary mixing of the micro-nano bubble aerator have smaller particle size; the pressure of intaking through pressure sensor real-time supervision micro-nano bubble aerator makes micro-nano bubble particle diameter more homogeneous, and the dissolved concentration of the gas of the delivery port through gas sensor real-time supervision micro-nano bubble aerator in aqueous can switch the air supply and adjust the air input as required, the dissolved concentration of real-time control gas in aqueous.
It should be noted that the above-described embodiments may enable those skilled in the art to more fully understand the present invention, but do not limit the present invention in any way. It will be apparent to those skilled in the art that modifications and improvements can be made to the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. A micro-nano bubble generating device is characterized by comprising a water pump (7), a gas-liquid mixing pressure container (8), a micro-nano bubble aerator (9), a gas source (10) and an electric control unit (12); wherein, the water inlet of the water pump (7) is connected with the water inlet pipeline (6), the water outlet is connected with the gas-liquid mixing pressure container (8) through a pipeline, and the gas-liquid mixing pressure container (8) is connected with the micro-nano bubble aerator (9) through a pipeline; the gas source (10) is respectively connected with the gas-liquid mixing pressure container (8) and the micro-nano bubble aerator (9) through gas pipelines; the micro-nano bubble aerator (9) is connected with a water outlet pipeline (11);
the micro-nano bubble aerator (9) comprises a liquid inlet pipe (2), a gas-liquid mixing cavity (3), an air inlet passage and a liquid outlet passage; wherein,
the gas-liquid mixing cavity (3) comprises a rotary cavity (3-1) and a contraction cavity (3-2); the air inlet passage comprises an air inlet pipe (4-1), an air distribution cavity (4-2) and an air outlet (4-3) which are connected in sequence; the liquid outlet passage comprises a water outlet cavity (5-1), a converging cavity (5-2) and a liquid outlet pipe (5-3);
the liquid inlet pipe (2) is tangentially connected with the rotary cavity (3-1); the rotary cavity (3-1) is connected with the contraction cavity (3-2); the diameter of the contraction cavity (3-2) is gradually reduced outwards from the rotation cavity (3-1), and the end with the smaller diameter is connected with the water outlet cavity (5-1); the other end of the water outlet cavity (5-1) is connected with the converging cavity (5-2); the other end of the converging cavity (5-2) is connected with a liquid outlet pipe (5-3); the air outlet (4-3) is positioned in the water outlet cavity (5-1) and is opposite to the center of the contraction cavity (3-2), and the air outlet (4-3) is arranged at the outer port of the contraction cavity (3-2) or extends into the outer port of the contraction cavity (3-2) for a certain distance.
2. The micro-nano bubble generating device according to claim 1, wherein the left and right sides of the rotating cavity (3-1) of the micro-nano bubble aerator (9) are symmetrically provided with the contracting cavities (3-2), and correspondingly, the two air outlets (4-3) and the two water outlet cavities (5-1) are also symmetrically arranged at the outer ports of the two contracting cavities (3-2).
3. The micro-nano bubble generating device according to claim 1, wherein a pressure gauge, a pressure stabilizing valve or a pressure sensor is installed on the liquid inlet pipe (2) of the micro-nano bubble aerator (9).
4. The micro-nano bubble generating device according to claim 1, wherein a check valve is arranged on an air inlet pipe (4-1) of the micro-nano bubble aerator (9) to prevent liquid from flowing back to enter an air inlet passage.
5. The micro-nano bubble generating device according to claim 1, wherein a gas flow meter is arranged on an air inlet pipe (4-1) of the micro-nano bubble aerator (9).
6. The micro-nano bubble generation device according to claim 1, wherein a dissolved oxygen sensor or other gas sensors are connected to the liquid outlet pipes (5-3) of the micro-nano bubble aerator (9).
7. The micro-nano bubble generating device according to claim 1, wherein the micro-nano bubble aerator (9) further comprises a housing (1), and other components are arranged in the housing (1) except that the liquid inlet pipe (2) and the liquid outlet pipes (5-3) extend out of the housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021624949.6U CN212819194U (en) | 2020-08-07 | 2020-08-07 | Micro-nano bubble generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021624949.6U CN212819194U (en) | 2020-08-07 | 2020-08-07 | Micro-nano bubble generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212819194U true CN212819194U (en) | 2021-03-30 |
Family
ID=75129409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021624949.6U Active CN212819194U (en) | 2020-08-07 | 2020-08-07 | Micro-nano bubble generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212819194U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338001A (en) * | 2021-06-04 | 2021-09-03 | 南京农业大学 | Washing method and device based on nano hydrogen bubbles |
| CN113877450A (en) * | 2021-11-04 | 2022-01-04 | 中国环境科学研究院 | Intelligent micro-nano bubble generation device for black and odorous water treatment |
| CN114020080A (en) * | 2021-11-04 | 2022-02-08 | 河海大学 | Micro-nano air entrainment-based automatic rice field irrigation and drainage system and method |
| CN115739398A (en) * | 2022-11-11 | 2023-03-07 | 昆明理工大学 | Laboratory micro-nano bubble flotation equipment and flotation method thereof |
-
2020
- 2020-08-07 CN CN202021624949.6U patent/CN212819194U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338001A (en) * | 2021-06-04 | 2021-09-03 | 南京农业大学 | Washing method and device based on nano hydrogen bubbles |
| CN113877450A (en) * | 2021-11-04 | 2022-01-04 | 中国环境科学研究院 | Intelligent micro-nano bubble generation device for black and odorous water treatment |
| CN114020080A (en) * | 2021-11-04 | 2022-02-08 | 河海大学 | Micro-nano air entrainment-based automatic rice field irrigation and drainage system and method |
| CN114020080B (en) * | 2021-11-04 | 2022-07-08 | 河海大学 | Micro-nano air entrainment-based automatic rice field irrigation and drainage system and method |
| CN115739398A (en) * | 2022-11-11 | 2023-03-07 | 昆明理工大学 | Laboratory micro-nano bubble flotation equipment and flotation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212819194U (en) | Micro-nano bubble generating device | |
| US20070257381A1 (en) | Cavitation generating system | |
| CA2167823A1 (en) | An Apparatus and a Method for Mixing or Dissolving a Particulate Solid in a Liquid | |
| CN111348740A (en) | Aeration system based on venturi tube cavitation effect | |
| CN110891674A (en) | Microbubble generating apparatus and microbubble generating method, and shower apparatus and oil-water separating apparatus having the same | |
| CN207811449U (en) | A kind of oxygen-dissolving apparatus | |
| KR102038132B1 (en) | Aerator using eddy flow | |
| WO2024120105A1 (en) | Air suction protection structure of microbubble device | |
| CN209952611U (en) | Small-flow high-concentration ozone water mixing device | |
| CN212855319U (en) | Micro-nano bubble aerator | |
| JP2002166151A (en) | Minute foam supply method and minute foam supply apparatus | |
| CN204958502U (en) | Gas -liquid mixture and separation integrated device | |
| CN216038881U (en) | Negative pressure type efficient air dissolving device | |
| KR20220002801U (en) | Connector for nano bubble generator | |
| CN202738637U (en) | Oxygenation water pump | |
| CN202666717U (en) | Spiral jet mixer | |
| CN109368824A (en) | Efficient jet aerator | |
| KR100666913B1 (en) | Device dissolving oxygen | |
| CN103503818A (en) | Oxygenating water pump | |
| CN106927534A (en) | Efficient malleation holds air-tube type air-floating apparatus under the arm | |
| CN106179014A (en) | Aerofoil profile gas-liquid or liquid liquid mixing nano bubble generating unit and nano-bubble generating apparatus | |
| CN212855320U (en) | Micro-nano bubble aerator | |
| CN209178095U (en) | Efficient jet aerator | |
| KR102079428B1 (en) | Micro-bubble generator | |
| JP2003056500A (en) | Ejector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |