CN110521431B - Micro-nano bubble generator and oxygenation device - Google Patents
Micro-nano bubble generator and oxygenation device Download PDFInfo
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- CN110521431B CN110521431B CN201910630635.2A CN201910630635A CN110521431B CN 110521431 B CN110521431 B CN 110521431B CN 201910630635 A CN201910630635 A CN 201910630635A CN 110521431 B CN110521431 B CN 110521431B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/247—Watering arrangements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/005—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 mounted on vehicles or designed to apply a liquid on a very large surface, e.g. on the road, on the surface of large containers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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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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- Biodiversity & Conservation Biology (AREA)
- Water Supply & Treatment (AREA)
- Forests & Forestry (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
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Abstract
The invention discloses a micro-nano bubble generator and an oxygenation device, which comprise a portable installation inlet, a gas-dissolved water inlet, a turbulent flow cavity, a conical channel and a portable installation outlet which are arranged along the medium flow direction and are sequentially communicated; the turbulent flow cavity is at least provided with two throat holes, the number of the conical passages is equal to that of the throat holes, and the throat holes are inlets of the conical passages; the turbulent flow cavity is coaxial with the dissolved gas water inlet; the oxygenation device comprises a micro-nano bubble generator, a gas-liquid mixing pump and a gas-liquid separation tank, wherein a water inlet and a gas inlet are arranged on the gas-liquid mixing pump and are used as medium inlets of the whole device, an outlet of the gas-liquid mixing pump is communicated with an inlet of the gas-liquid separation tank, and an outlet of the gas-liquid separation tank is connected with a portable installation inlet of the micro-nano bubble generator; the invention is suitable for an oxygenation irrigation system, and has high matching degree with the existing micro irrigation system; can produce a large amount of micro-nano level bubbles in the short time, dissolve gas efficiently, this equipment structure is simple, and the volume is less, and the energy consumption is lower.
Description
Technical Field
The invention belongs to the field of oxygenation irrigation, and relates to a micro-nano bubble generator and an oxygenation device.
Background
The water, fertilizer and gas heat light is an important factor which is necessary for the growth of crops, the growth state of the crops is determined by the mutual coordination of all factors, and the establishment of a proper water, fertilizer and gas heat environment has great significance for the growth of the crops. With the gradual popularization of the water and fertilizer integration technology, oxygen increasing irrigation gradually becomes a key factor for increasing the yield and the efficiency of crops, and the development of an oxygen increasing system matched with the existing irrigation system has great practical requirements. The technology can relieve the anoxic environment of the crop root zone, improve the oxygen content in the soil, promote the growth of the root system and improve the activity of the root system. At present, common oxygenation modes comprise Venturi oxygenation, mechanical oxygenation, chemical oxygenation and the like, and the oxygenation modes generally have a plurality of defects and shortcomings, such as low solubility of gas in water, short preservation time, large bubble size, small contact area with crop roots and the like. The comparatively leading-edge micro-nano bubble oxygenation technology is mainly applied to the fields of sewage treatment, petrochemical industry, aquaculture and the like, and the existing oxygenation device has relatively large volume and weight and can not be well matched and fused with the existing drip irrigation system.
Disclosure of Invention
The invention aims to provide a micro-nano bubble generator and an oxygenation device, which can enhance the concentration of irrigation water-soluble oxygen, improve the gas-liquid mass transfer efficiency and solve the problems of large oxygenation bubble particles, low oxygen concentration of a water body and unmatched with the existing irrigation system
In order to achieve the purpose, the technical scheme adopted by the invention is that the micro-nano bubble generator comprises a portable installation inlet, a gas-dissolved water inlet, a turbulent flow cavity, a throat hole, a conical channel and a portable installation outlet which are arranged along the medium flow direction and are sequentially communicated; the number of the throat holes is equal to that of the throat holes, and the throat holes are inlets of the conical passages; the turbulent flow cavity is coaxial with the dissolved gas water inlet, the turbulent flow cavity is an oblate cavity, and the center of the throat hole is uniformly arranged along a certain circumference of the turbulent flow cavity; the diameter of the circumference is larger than that of the gas-dissolved water inlet.
Along the medium flow direction, the diameter of the conical channel is gradually increased, and the opening angle beta of the conical channel is 6-10 degrees; the diameter of the portable installation inlet 1 is 4-6 mm, the diameter of the throat hole 4 is 3-4 mm, the width of the turbulent flow cavity 3 is 1.8-2.2 mm, and two portable installation outlets 6 are arranged.
The diameter of the portable installation inlet is larger than that of the dissolved gas water inlet, and a transition section with gradually reduced diameter is arranged between the portable installation inlet and the dissolved gas water inlet.
The diameter of the portable installation inlet is 4-6 mm, the diameter of the throat hole is 3-4 mm, the width of the turbulent flow cavity is 1.8-2.2 mm, and two portable installation outlets are arranged.
An oxygenation device provided with a micro-nano bubble generator comprises the micro-nano bubble generator, a gas-liquid mixing pump, a gas-liquid separation tank and an electric control cabinet, wherein a PLC (programmable logic controller) and a power supply module are arranged in the electric control cabinet, and the gas-liquid mixing pump is connected with the power supply module and the PLC; the gas-liquid mixing pump is provided with a water inlet and an air inlet, the water inlet and the air inlet are medium inlets of the whole device, an outlet of the gas-liquid mixing pump is communicated with an inlet of the gas-liquid separation tank, and an outlet of the gas-liquid separation tank is connected with a portable installation inlet of the micro-nano bubble generator.
The gas-liquid separation tank is provided with a pressure gauge, the top of the gas-liquid separation tank is provided with an exhaust valve, and the pressure gauge is connected with a PLC (programmable logic controller) in the electric control cabinet.
A one-way valve and a ball valve are arranged on a pipeline between an outlet of the gas-liquid separation tank and a portable installation inlet of the micro-nano bubble generator, and the one-way valve enables a medium to flow to the micro-nano bubble generator from the gas-liquid separation tank.
The electric control cabinet is also connected with an industrial control touch screen which is used for inputting parameters to the electric control cabinet and outputting the state of the electric control cabinet.
The gas-liquid mixing pump is characterized by also comprising a bracket for supporting and fixing the gas-liquid mixing pump and the electric control cabinet, wherein the bottom of the bracket is provided with a bottom plate on which the gas-liquid mixing pump is arranged; the support bottom is provided with the universal wheel, and industry control touch-sensitive screen sets up at the top of support, and automatically controlled cabinet installs in the side of support, and micro-nano bubble generator installs on the support.
Compared with the prior art, the invention has at least the following beneficial effects: based on the basic principle of a dissolved air release method, the micro-nano bubble generator and the oxygenation device are designed, the structure of the micro-nano bubble generator is reasonably designed, so that flocculation in dissolved air water and turbulence intensity in the dissolved air water are more reasonable, and when the dissolved air water passes through the micro-nano bubble generator, pressure is suddenly released after various actions of impact, oscillation, backflow and vortex, so that micro bubbles can be formed;
the gas-liquid mixing pump sucks gas while absorbing water, so that gas and liquid are relatively fully mixed under the action of high pressure; the water-gas mixture passing through the gas-liquid mixing pump enters a gas-liquid separation tank, undissolved large-particle bubbles rise in the gas-liquid separation tank and are discharged through an exhaust valve, when the dissolved water passing through the separation tank passes through a micro-nano bubble generator, after various actions of impact, oscillation, backflow and vortex, the pressure is suddenly released, a large amount of micro-bubbles can be separated out, and the water-gas mixture enters a micro-irrigation system through a pipeline; the micro-nano bubble generator and the oxygenation device are suitable for an oxygenation irrigation system, and have high matching degree with the existing micro-irrigation system; a large amount of micro-nano-level bubbles can be generated in a short time, the gas dissolving efficiency is high, the structure is simple, the volume is small, and the energy consumption is low; and the control cabinet is adopted to control the gas-liquid mixing pump, so that the automatic irrigation operation is realized.
Furthermore, a pressure gauge is arranged on the gas-liquid separation tank and connected with the electric control cabinet, so that the pressure of the gas-liquid separation tank can be monitored in real time, and reference can be provided for optimizing the irrigation process.
Furthermore, the top of the gas-liquid separation tank is provided with an exhaust valve which can be effectively discharged as dissolved gas.
Furthermore, a one-way valve and a ball valve are arranged on a pipeline between the outlet of the gas-liquid separation tank and the portable installation inlet of the micro-nano bubble generator, and the one-way valve enables a medium to flow to the micro-nano bubble generator from the gas-liquid separation tank in one direction and places a counter flow; the ball valve can block fluid when needed, and can change the flow of the fluid, thereby improving the overall safety, reliability and maintainability of the device.
Furthermore, the industrial control touch screen is adopted to input parameters and instructions into the electric control cabinet, the running state of the device is reflected, and the control is more convenient.
Furthermore, the gas-liquid mixing pump is arranged on the support, and the universal wheels are arranged at the bottom of the support, so that the device is convenient to move and realizes the flexibility of irrigation by adopting the device.
Drawings
FIG. 1 is a schematic structural diagram of a micro-nano bubble generator in the present invention;
FIG. 2 is an overall schematic view of the micro-nano bubble aeration device according to the present invention;
FIG. 3 is a cloud diagram of pressure distribution of an internal flow field of the micro-nano bubble generator in the invention;
FIG. 4 is a cloud diagram of turbulence intensity distribution of an internal flow field of the micro-nano bubble generator in the invention;
FIG. 5 is a graph showing the increase of dissolved oxygen value of an oxygen-enriched water under different working pressures;
FIG. 6 is a diagram of micron-sized bubble particles prepared by the micro-nano bubble oxygenation device;
FIG. 7 is a diagram of nano-scale bubble particles prepared by the micro-nano bubble oxygenation device according to the invention;
FIG. 8 is a graph showing the attenuation curve of the dissolved oxygen value of water within 150h after the oxygen increasing device stops increasing oxygen;
FIG. 9 is a graph showing the relationship between the dissolved oxygen concentration in the water at the inlet and outlet of the aeration device according to the present invention.
In the attached drawing, 1-a portable installation inlet, 2-a gas-dissolved water inlet, 3-a turbulent flow cavity, 4-a throat hole, 5-a conical channel, 6-a portable installation outlet, 8-a universal wheel, 9-a support, 10-an air flow valve, 11-an electric control cabinet, 12-a gas-liquid separation tank, 13-an industrial control touch screen, 14-a one-way valve, 15-an exhaust valve, 16-a pressure gauge, 17-a ball valve, 18-a micro-nano bubble generator and 19-a gas-liquid mixing pump.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, a micro-nano bubble generator comprises a portable installation inlet 1, a dissolved gas water inlet 2, a turbulent flow cavity 3, a throat hole 4, a conical channel 5 and a portable installation outlet 6 which are arranged along a medium flow direction and are sequentially communicated; the number of the throat holes 4 is at least two, the number of the conical passages 5 is equal to that of the throat holes 4, and the throat holes 4 are inlets of the conical passages 5; the turbulent flow cavity 3 is coaxial with the dissolved gas water inlet 2, and the center of the throat hole 4 is uniformly arranged along a certain circumference of the turbulent flow cavity 3; the diameter of the circumference is larger than that of the gas-dissolved water inlet 2.
As shown in fig. 1, the diameter of the tapered passage 5 gradually increases along the medium flow direction, and the opening angle β of the tapered passage 5 is 6 ° to 10 °.
The diameter of the portable installation inlet 1 is larger than that of the dissolved gas water inlet 2, and a transition section with the diameter gradually reduced is arranged between the portable installation inlet 1 and the dissolved gas water inlet 2.
As a preferred embodiment of the present invention, the diameter of the portable installation inlet 1 of the micro-nano bubble generator is 5mm, the diameter of the throat hole 4 is 3mm, the width of the turbulent flow chamber 3 is 2mm, the angle of the conical channel 5 is 6 degrees and the number of the portable installation outlets 6 is 2.
Referring to fig. 2, an oxygen increasing device using the micro-nano bubble generator comprises a micro-nano bubble generator 18, a gas-liquid mixing pump 19, a gas-liquid separation tank 12 and an electric control cabinet 11, wherein a water inlet 20 and a gas inlet 21 on the gas-liquid mixing pump 19 are medium inlets of the whole device, an outlet of the gas-liquid mixing pump 19 is connected with an inlet of the gas-liquid separation tank 12, and an outlet of the gas-liquid separation tank 12 is connected with a portable installation inlet 1 of the micro-nano bubble generator 18; a three-dimensional frame is formed by welding or connecting aluminum profiles through bolts to form a support 9, a pipeline for connecting a gas-liquid separation tank 12 and a micro-nano bubble generator 18 is arranged along the support 9, and the micro-nano bubble generator 18, a one-way valve 14 and a ball valve 17 are all arranged on the support 9.
A pressure gauge 16 is arranged on the gas-liquid separation tank 12, and an exhaust valve 15 is arranged at the top of the gas-liquid separation tank 12; a one-way valve 14 and a ball valve 17 are arranged on a pipeline between the outlet of the gas-liquid separation tank 12 and the portable installation inlet 1 of the micro-nano bubble generator 18, and the medium flows to the micro-nano bubble generator 18 from the gas-liquid separation tank 12 through the one-way valve 14.
The electric control cabinet 11 is also connected with an industrial control touch screen 13, the industrial control touch screen 13 is used for inputting parameters to the electric control cabinet 11 and outputting the state of the electric control cabinet, the electric control cabinet 11 is provided with a power supply module and a PLC (programmable logic controller), the PLC is in communication connection with the industrial control touch screen 13, and the PLC is in two-way communication with the industrial control touch screen 13; thereby realizing the control of the switching value of the oxygen increasing equipment and the power supply.
The pressure gauge 16 is connected with the input end of the PLC, and the switch of the gas-liquid mixing pump 19 is connected with the output end of the PLC in the electric control cabinet 11; the electric control cabinet 11 is used for controlling the gas-liquid mixing pump 19 and controlling the gas-liquid mixing pump 19.
Referring to fig. 2, the micro-nano bubble oxygen increasing device in the invention has an overall structure of an aluminum profile frame, and has the basic principle that a gas-liquid mixing pump 19 sucks water and gas at the same time, so that gas and liquid are mixed relatively fully under the action of high pressure, a water-gas mixture passing through the gas-liquid mixing pump 19 enters a gas-liquid separation tank 12, undissolved large-particle bubbles rise in the gas-liquid separation tank 12 and are discharged through an exhaust valve, and unstable phenomena such as impact and the like caused by formation of gas pockets in a pipeline are avoided;
when the dissolved air water passing through the gas-liquid separation tank 12 passes through the micro-nano bubble generator, after impact, oscillation, backflow and vortex, pressure is released suddenly, a large amount of micro-bubbles can be separated out, and the mixed water-gas liquid enters the micro-irrigation system through a pipeline.
Referring to fig. 3 and 4, the CFD analysis software FLUENT performs simulation calculation on the internal flow field of the microbubble generator, and theoretical analysis shows that the size of the generated microbubble particle size mainly depends on the pressure before and after release, and the generated amount of the microbubbles mainly depends on the flocculation degree of the gas-dissolved water in the microbubble generator; the mass transfer efficiency mainly depends on the turbulence intensity of the flow field, and in a preferred embodiment of the present invention, the internal structural parameters of the micro-nano bubble generator 18 are as follows: the diameter of the throat hole 4 is 3mm, the width of the turbulent flow cavity is 2mm, the outlet angle is 6 degrees, and the number of the portable mounting outlets 6 is 2; the external installation dimension of the portable installation inlet is 20mm in external diameter, 15mm in internal diameter, 5mm in diameter d of the inlet, and 25mm in external diameter of the portable installation outlet 6.
Referring to fig. 5, the micro-nano bubble generator is used for increasing oxygen under different pressures; optimizing to obtain the micro-nano bubble generator with the best performance, and carrying out aeration under different pressures of 0.2MPa, 0.25MPa, 0.3MPa and 0.35MPa to obtain a curve of the increase of the dissolved oxygen value of each micro-nano bubble generator along with time, wherein the curve shows that the best working pressure of the micro-nano bubble generator is 0.3MPa, and the dissolved oxygen concentration is highest when the dissolved oxygen concentration reaches a steady state under the working pressure.
Referring to fig. 6 and 7, the oxygenated gas-dissolved water is placed in a measuring cup, a scale is placed, a camera is used for microcosmically photographing bubbles, the size of the bubbles is measured through image processing, and the average particle size of small-particle bubbles in a sample gas-liquid mixture is 15-40 μm. The particle size of particles in the aerated dissolved air water is measured by using a nanometer particle size analyzer with the model of Zetasizer Nano ZSE, and analysis of measurement data shows that the average value of the particle sizes of the bubbles is 373.1nm, the minimum particle size of the bubbles in an observed sample is 164.2nm, the maximum particle size of the bubbles is 458.6nm, the highest proportion of the bubbles is 220-295 nm, and the highest proportion of the bubbles accounts for 62.6% of the total number of the bubbles.
Referring to fig. 8, the continuous measurement for 150 hours is taken as the change of the dissolved oxygen value in the water body, and a dissolved oxygen value attenuation curve is obtained. As can be seen from the graph, the dissolved oxygen concentration decreases rapidly within about 3 hours after the aeration is stopped, and the decreasing trend gradually decreases; before 3h, the oxygen concentration in the water body is in a super-saturated state and is very unstable, so the concentration decrease rate is fast, the concentration is in a stable state after gradually decreasing to a saturation value at the temperature, the dissolved oxygen concentration is gradually decreased under the action of water body disturbance and the like, the dissolved oxygen concentration decrease rate is slowed down along with the decrease of the concentration, and the dissolved oxygen value of the water body is recovered to the aeration original value after the oxygen aeration is stopped for 150 h.
Referring to fig. 9, clear water with different concentrations passes through the micro-nano bubble oxygenation device, and the dissolved oxygen value in water at an outlet of the micro-nano bubble oxygenation device is detected. According to the curve, the concentration of water with the dissolved oxygen concentration of 0mg/L passes through the micro-nano bubble oxygen increasing device, the concentration of the water at the outlet is increased to 6.8mg/L, when the concentration of the dissolved oxygen in the water at the inlet is 5.0mg/L, the concentration of the dissolved oxygen in the water at the outlet is 9.2mg/L, the tested water temperature is 19 ℃, and the saturated concentration value of the dissolved oxygen at the temperature is 9.27mg/L, so that the dissolved oxygen concentration in the water at the outlet can reach the saturated concentration value at the temperature after passing through the oxygen increasing device at the tested temperature, and the oxygen increasing performance of the device can meet the use requirement of greenhouse irrigation.
Claims (6)
1. A micro-nano bubble generator is characterized by comprising a portable installation inlet (1), a gas-dissolved water inlet (2), a turbulent flow cavity (3), a throat hole (4), a conical channel (5) and a portable installation outlet (6), which are arranged along the flow direction of a medium and are sequentially communicated; the number of the throat holes (4) is at least two, the number of the conical passages (5) is equal to that of the throat holes (4), and the throat holes (4) are inlets of the conical passages (5); the turbulence cavity (3) is coaxial with the gas-dissolved water inlet (2), the turbulence cavity (3) is an oblate cavity, and the center of the throat hole (4) is uniformly arranged along a certain circumference of the turbulence cavity (3); the diameter of the circumference is larger than that of the gas-dissolved water inlet (2); along the medium flow direction, the diameter of the conical channel (5) is gradually increased, and the opening angle beta of the conical channel (5) is 6-10 degrees; the diameter of the portable installation inlet (1) is larger than that of the dissolved gas water inlet (2), and a transition section with the diameter gradually reduced is arranged between the portable installation inlet (1) and the dissolved gas water inlet (2); the diameter of the portable installation inlet (1) is 4-6 mm, the diameter of the throat hole (4) is 3-4 mm, the width of the turbulent flow cavity (3) is 1.8-2.2 mm, and two portable installation outlets (6) are arranged.
2. An oxygen increasing device adopting the micro-nano bubble generator according to claim 1, comprising a micro-nano bubble generator (18), a gas-liquid mixing pump (19), a gas-liquid separation tank (12) and an electric control cabinet (11), wherein a PLC (programmable logic controller) and a power supply module are arranged in the electric control cabinet (11), and the gas-liquid mixing pump (19) is connected with the power supply module and the PLC; the gas-liquid mixing pump (19) is provided with a water inlet (20) and a gas inlet (21), the water inlet (20) and the gas inlet (21) are medium inlets of the whole device, an outlet of the gas-liquid mixing pump (19) is communicated with an inlet of the gas-liquid separation tank (12), and an outlet of the gas-liquid separation tank (12) is connected with the portable installation inlet (1) of the micro-nano bubble generator (18).
3. The oxygenation device of claim 2, characterized in that a pressure gauge (16) is arranged on the gas-liquid separation tank (12), an exhaust valve (15) is arranged on the top of the gas-liquid separation tank (12), and the pressure gauge (16) is connected with a PLC controller in the electric control cabinet (11).
4. The oxygenation device according to claim 2, characterized in that a one-way valve (14) and a ball valve (17) are arranged on a pipeline between the outlet of the gas-liquid separation tank (12) and the portable installation inlet (1) of the micro-nano bubble generator (18), and the one-way valve (14) enables the medium to flow from the gas-liquid separation tank (12) to the micro-nano bubble generator (18).
5. The oxygenation device according to claim 2, characterized in that the electric control cabinet (11) is further connected with an industrial control touch screen (13), and the industrial control touch screen (13) is used for inputting parameters to the electric control cabinet (11) and outputting the state of the electric control cabinet (11).
6. The oxygenation device according to claim 5, characterised in that it further comprises a support (9) for supporting and fixing the gas-liquid mixing pump (19) and the electric control cabinet (11), the bottom of the support (9) being provided with a base plate on which the gas-liquid mixing pump (19) is arranged; the universal wheel (8) is arranged at the bottom of the support (9), the industrial control touch screen (13) is arranged at the top of the support (9), the electric control cabinet (11) is installed on the side face of the support, and the micro-nano bubble generator (18) is installed on the support (9).
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| CN201910630635.2A CN110521431B (en) | 2019-07-12 | 2019-07-12 | Micro-nano bubble generator and oxygenation device |
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| CN201910630635.2A CN110521431B (en) | 2019-07-12 | 2019-07-12 | Micro-nano bubble generator and oxygenation device |
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| JP2011115771A (en) * | 2009-12-03 | 2011-06-16 | Uratani Masao | Fine air bubble generator for microbubble shower |
| KR20170127260A (en) * | 2016-05-11 | 2017-11-21 | 강원대학교산학협력단 | Apparatus for producing micro bubbles by using a venturi pipe with porous tube therein |
| CN205850620U (en) * | 2016-08-15 | 2017-01-04 | 中石化炼化工程（集团）股份有限公司 | Microbubble generator |
| CN206328202U (en) * | 2016-11-20 | 2017-07-14 | 山东博斯达环保科技有限公司 | Ultra micro nano-bubble generator |
| JP2019055373A (en) * | 2017-09-21 | 2019-04-11 | ミクニ総業株式会社 | Micro nano-bubble generator and pipe washing method |
| CN108722214A (en) * | 2018-07-25 | 2018-11-02 | 上海行恒科技有限公司 | A kind of highly concentrated nano grade bubble generator |
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| CN110521431A (en) | 2019-12-03 |
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