CN112535988A - Micro-nano bubble preparation device and preparation method thereof - Google Patents
Micro-nano bubble preparation device and preparation method thereof Download PDFInfo
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- CN112535988A CN112535988A CN202011299391.3A CN202011299391A CN112535988A CN 112535988 A CN112535988 A CN 112535988A CN 202011299391 A CN202011299391 A CN 202011299391A CN 112535988 A CN112535988 A CN 112535988A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
- B01F33/8212—Combinations of dissimilar mixers with consecutive receptacles with moving and non-moving stirring devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/235—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/235—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam
- B01F23/2351—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam using driven stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
- B01F25/31242—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow the main flow being injected in the central area of the venturi, creating an aspiration in the circumferential part of the conduit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
- B01F25/31243—Eductor or eductor-type venturi, i.e. the main flow being injected through the venturi with high speed in the form of a jet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/55—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers driven by the moving material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/808—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers driven from the bottom of the receptacle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/32—Driving arrangements
- B01F35/32005—Type of drive
- B01F35/32015—Flow driven
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/883—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using flow rate controls for feeding the substances
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Abstract
The invention discloses a micro-nano bubble preparation device which comprises a water supply device, an air supply device, a gas-liquid mixing device and a secondary air dissolving device, wherein the air supply device supplies air to the gas-liquid mixing device; the secondary air dissolving device comprises an air dissolving body, a hydraulic turbine device, a cutting part and a releasing part, wherein the air dissolving body is provided with a first cavity and a second cavity, the hydraulic turbine device is installed in the first cavity, the cutting part is located in the second cavity and is coaxially arranged with the hydraulic turbine device, and the releasing part is communicated with the second cavity. This micro-nano bubble preparation facilities can prepare a large amount of micro-nano bubbles fast and efficiently, and micro-nano bubble's quality is higher, and the bubble size is stable, and the system energy consumption is low, and simple structure, the equipment modularization processing system of being convenient for. The invention also provides a preparation method of the micro-nano bubbles.
Description
Technical Field
The invention relates to the technical field of micro-nano bubbles, in particular to a micro-nano bubble preparation device and a preparation method thereof.
Background
The micro-nano bubbles are bubbles with the diameter of about hundreds of nanometers to ten micrometers when the bubbles occur, the bubbles are between the micro-bubbles and the nano-bubbles, compared with conventional bubbles, the micro-nano bubbles have the characteristics of small bubble size, large specific surface area, high gas dissolution rate, capability of generating free radicals, high mass transfer efficiency, strong adsorption capacity, long existence time and the like, have the functions of oxygenation, sterilization, disinfection, washing, decontamination, water purification, organic matter degradation and the like, can efficiently adsorb oil stains and solid particles, greatly improve the air floatation efficiency, and can be better applied to the fields of aquaculture water oxygenation, air floatation water purification solid-liquid separation, river ecological restoration and sewage treatment. In recent years, applications in various fields have been receiving increasing attention.
At present, there are a variety of micro-nano bubble generation mechanisms, including: chemical reaction method, electrolytic method, ultrasonic cavitation method, hydrodynamic cavitation method, dispersed air method, and dissolved air floatation method. The chemical reaction method, the electrolysis method, the ultrasonic cavitation method and the hydrodynamic cavitation method have the advantages of low microbubble generation efficiency, high power consumption, difficult popularization and use in actual production, high chemical reaction cost and secondary pollution to a water body.
The commonly used micro-bubble generation mechanism is a dispersed air method and a dissolved air floatation method, wherein the dispersed air method mainly cuts and breaks air repeatedly through modes of high-speed cutting, stirring and the like, and a large amount of micro-bubbles are stably generated by mixing in a water body. The air dispersing method has the advantages of low energy consumption, high microbubble generation efficiency and no secondary pollution to a water body, but the air dispersing method needs a high-power high-rotating-speed motor to realize high-speed shearing and stirring and has high requirements on equipment. The pressurized dissolved air floatation method is a pressurized dissolved air separation method, which comprises the steps of utilizing a water pump, an air compressor and the like to respectively press water flow and air with certain pressure into a pressurized dissolved air tank, dissolving the gas into water under the action of certain pressure to reach a saturated state to form a high-pressure gas-water mixture, and then reducing the pressure of the dissolved gas water through sudden pressure reduction to enable the gas dissolved in the dissolved gas water to escape in a micro-bubble form. Compared with a dispersed air method, the pressurized dissolved air method has lower requirements on equipment processing and manufacturing, but the dispersion of the sizes of micro bubbles generated by the pressurized dissolved air floatation method is larger, the bubbles are difficult to control within 50 mu m of diameter and generate uniform micro-nano bubbles, the energy consumption is higher, the operation cost is high, and the dissolved air efficiency is lower.
Therefore, it is necessary to provide a micro-nano bubble manufacturing apparatus and a manufacturing method thereof to solve the above technical drawbacks.
Disclosure of Invention
One of the purposes of the invention is to provide a micro-nano bubble preparation device which can quickly and efficiently prepare a large amount of micro-nano bubbles and has a simple structure.
The second purpose of the invention is to provide a preparation method of micro-nano bubbles.
In order to achieve the purpose, the invention discloses a micro-nano bubble preparation device which comprises a water supply device, an air supply device, a gas-liquid mixing device and a secondary air dissolving device, wherein the air supply device supplies air to the gas-liquid mixing device; the secondary dissolves gas device is including dissolving gas body, hydraulic turbine device, cutting part and release portion, it is equipped with first cavity and second cavity to dissolve the gas body, the hydraulic turbine device is installed in the first cavity, the cutting part is located in the second cavity and with the coaxial setting of hydraulic turbine device, the release portion with second cavity intercommunication, gas-liquid mixture gets into flow to behind the hydraulic turbine device the second cavity, the hydraulic turbine device drives the cutting part is rotatory with right gas-liquid mixture in the second cavity cuts and forms the high saturated water solution that dissolves, and the high saturated water solution that dissolves borrows by release portion release forms micro-nano bubble.
Compared with the prior art, the micro-nano bubble preparation facilities of this application, cut apart into a large amount of small bubbles with the help of the air that gas-liquid mixing device provided air feeder, and make its liquid with the water supply installation provides form the mixture, carry out first gas-liquid mixing and dissolve gas, form the gas-liquid mixture, then provide power for hydraulic turbine device through this gas-liquid mixture, drive the cutting part and produce high-speed cutting in the second cavity, the turbulent motion degree of aggravation improves the dispersion degree of liquid phase, the interface of liquid phase and gaseous phase is constantly updated, dissolve into water gas with high-speed gyrus cutting mode, make the bubble breakage refine, improve gaseous dissolution efficiency, a large amount of micro-nano bubbles are prepared to high efficiency. This micro-nano bubble preparation facilities can prepare a large amount of micro-nano bubbles fast and efficiently, and micro-nano bubble's quality is higher, and the bubble size is stable, and the system energy consumption is low, and simple structure, the equipment modularization processing system of being convenient for.
Preferably, the water supply device includes a driving portion and a first flow meter located between the driving portion and the gas-liquid mixing device, and the first flow meter is configured to meter an amount of liquid supplied to the gas-liquid mixing device by the driving portion.
Preferably, the air supply device comprises an air compressor and a second flowmeter located between the air compressor and the air-liquid mixing device, and the second flowmeter is used for metering the air quantity supplied to the air-liquid mixing device by the air compressor.
Preferably, the gas-liquid mixing device comprises a water inlet part and a mixing part which are communicated, the water inlet part is provided with a water inlet and a nozzle which are communicated, the width of the water inlet is gradually reduced along the direction of the nozzle until the width of the water inlet is the same as that of the nozzle, the mixing part is provided with an air inlet, an air suction chamber, a mixing pipe and a water outlet, the air flows into the air suction chamber through the air inlet, the air suction chamber is communicated with the mixing pipe, the nozzle is communicated with the mixing pipe, a gap is formed between the nozzle and the air suction chamber, and the liquid and the air flow into the secondary air dissolving device through the mixing pipe and then flow into the secondary air dissolving device through the.
Preferably, the mixing tube comprises a first tube and a second tube which are communicated with each other, the air suction chamber is communicated with the first tube, the first tube extends along the water outlet direction, and the tube diameter of the first tube is gradually increased to form the second tube.
Preferably, the cutting part comprises a rotating shaft and cutting impellers, one end of the rotating shaft extends into the first cavity and is installed on the hydraulic turbine device, and a plurality of cutting impellers are arranged at intervals on the part, located in the second cavity, of the rotating shaft.
Preferably, the hydraulic turbine device comprises a hydraulic turbine, a water inlet pipe and a water outlet pipe, wherein a gas-liquid mixture in the gas-liquid mixing device flows into the hydraulic turbine through the water inlet pipe, drives the hydraulic turbine to work and then flows into the second cavity from the water outlet pipe.
Correspondingly, the application also provides a micro-nano bubble preparation method which is realized by adopting the micro-nano bubble preparation device.
Drawings
Fig. 1 is a schematic structural diagram of a micro-nano bubble preparation device of the present invention.
Fig. 2 is a schematic structural diagram of a gas-liquid mixing device in the micro-nano bubble preparation device shown in fig. 1.
Fig. 3 is a schematic structural diagram of a secondary air dissolving device in the micro-nano bubble preparation device shown in fig. 1.
Fig. 4 is a plan view of a cutting part of the secondary air dissolving device shown in fig. 3.
Fig. 5 is a schematic structural diagram of a water turbine device in the secondary air dissolving device shown in fig. 3.
Description of the symbols:
the micro-nano bubble preparation device 100, the water supply device 10, the driving part 11, the first switch 13, the first flowmeter 15, the air supply device 30, the air compressor 31, the gas regulating valve 33, the second flowmeter 35, the gas-liquid mixing device 50, the water inlet part 51, the water inlet 511, the nozzle 513, the mixing part 53, the air inlet 531, the air suction chamber 533, the mixing pipe 535, the first pipe 5351, the second pipe 5353, the water outlet 537, the gap 539, the secondary air dissolving device 70, the air dissolving body 71, the first cavity 711, the second cavity 713, the hydraulic turbine device 73, the hydraulic turbine 731, the water inlet pipe 733, the water outlet pipe 735, the cutting part 75, the rotating shaft 751, the cutting impeller 753, and the releasing part 77.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the micro-nano bubble preparation apparatus 100 of the present invention includes a water supply apparatus 10, an air supply apparatus 30, an air-liquid mixing apparatus 50, and a secondary air dissolving apparatus 70, wherein the air supply apparatus 30 supplies air to the air-liquid mixing apparatus 50, the water supply apparatus 10 supplies liquid to the air-liquid mixing apparatus 50, the air-liquid mixing apparatus 50 divides the air into a large number of micro bubbles, so that the micro bubbles and water form a mixture, and a first air-liquid mixing and air dissolving are performed to form an air-liquid mixture; referring to fig. 3, the secondary air dissolving device 70 includes an air dissolving body 71, a hydraulic turbine device 73, a cutting portion 75 and a releasing portion 77, the air dissolving body 71 is provided with a first cavity 711 and a second cavity 713, the hydraulic turbine device 73 is installed in the first cavity 711, the cutting portion 75 is located in the second cavity 713 and is coaxially disposed with the hydraulic turbine device 73, the releasing portion 77 is communicated with the second cavity 713, the air-liquid mixture flows into the second cavity 713 after entering the hydraulic turbine device 73, the hydraulic turbine device 73 drives the cutting portion 75 to rotate to cut the air-liquid mixture in the second cavity 713 to form high-saturation air-dissolved water, and the high-saturation air-dissolved water is released by the releasing portion 77 to form micro-nano bubbles.
With continued reference to fig. 1, the water supply device 10 includes a driving portion 11 and a first flow meter 15 located between the driving portion 11 and the gas-liquid mixing device 50, the first flow meter 15 being used for metering the amount of liquid supplied by the driving portion 11 to the gas-liquid mixing device 50. In the present embodiment, the driving part 11 may be, but is not limited to, a high pressure water pump. For convenience of operation, a first switch 13 is provided between the driving portion 11 and the first flow meter 15 to perform adjustment control of the amount of water.
With continued reference to fig. 1, the air supply device 30 includes an air compressor 31 and a second flow meter 35 disposed between the air compressor 31 and the air-liquid mixing device 50, wherein the second flow meter 35 is used for metering the amount of air supplied to the air-liquid mixing device 50 by the air compressor 31. For convenience of operation, a gas regulating valve 33 is provided between the air compressor 31 and the second flow meter 35 to perform control of the gas flow rate.
Referring to fig. 1-2, the air provided by the air supply device 30 and the liquid provided by the water supply device 10 are delivered to the air-liquid mixing device 50, wherein the air-liquid mixing device 50 is designed by using the venturi jet principle. Specifically, the gas-liquid mixing device 50 includes a water inlet portion 51 and a mixing portion 53 which are communicated with each other, the water inlet portion 51 is provided with a water inlet 511 and a nozzle 513 which are communicated with each other, the width of the water inlet 511 is gradually reduced along the direction of the nozzle 513 until the width is the same as that of the nozzle 513, the water inlet 511 is communicated with the water supply device 10, and the liquid flows to the nozzle 513 through the water inlet 511. The mixing portion 53 has an air inlet 531, an air suction chamber 533, a mixing pipe 535, and an water outlet 537. The air inlet 531 is connected with the air supply device 30, air flows into the air suction chamber 533 through the air inlet 531, the air suction chamber 533 is connected with the mixing pipe 535, the nozzle 513 is connected with the mixing pipe 535, a gap 539 is formed between the nozzle and the air suction chamber 533, and liquid and air flow to the secondary air dissolving device 70 through the water outlet 537 after passing through the mixing pipe 535. The driving section 11 feeds the liquid from the water inlet 511 into the gas-liquid mixing device 50, and since the diameter of the water inlet 511 is gradually reduced, the liquid is ejected from the nozzle 513 at an extremely high speed, and the liquid flowing at a high speed enters the mixing pipe 535 through the suction chamber 533 to form a partial vacuum in the mixing pipe 535. The air compressor 31 inputs air from the air inlet 531 into the air-liquid mixing device 50, the air flows from the air inlet 531 to the air suction chamber 533, and then flows from the gap opening 539 to the mixing pipe 535, and in the process, the air is divided into a large number of micro bubbles by the action of the water jet pressure, and the micro bubbles and water form a mixture, and the mixture is subjected to primary air-liquid mixing and air dissolving to form an air-liquid mixture. Further, the mixing pipe 535 includes a first pipe 5351 and a second pipe 5353 which are communicated with each other, the suction chamber 533 is communicated with the first pipe 5351, the first pipe 5351 extends along the direction of the water outlet 537 and the pipe diameter thereof gradually increases to form the second pipe 5353. Because the second pipe 5353 is formed by the first pipe 5351 extending along the direction of the water outlet 537 and having gradually increasing pipe diameter, when the gas-liquid mixture in the first pipe 5351 is discharged through the second pipe 5353, the kinetic energy of the mixed liquid can be converted into pressure energy, the speed is reduced, the pressure is increased, and a powerful jet flow is formed to enter the secondary gas dissolving device 70.
Referring to fig. 3-5, the secondary air dissolving device 70 employs a radial centripetal turbine for jet energy recovery. Specifically, the water turbine device 73 includes a water turbine 731, a water inlet tube 733 and a water outlet tube 735, the water turbine 731 is located in the first cavity 711, the water inlet tube 733 is communicated with the water outlet 537, and the water outlet tube 735 is communicated with the second cavity 713. The gas-liquid mixture in the gas-liquid mixing device 50 flows into the hydraulic turbine 731 through the water inlet pipe 733, drives the hydraulic turbine 731 to do work, and then flows into the second cavity 713 from the water outlet pipe 735. The first cavity 711 is arranged at the bottom of the dissolved air body 71, the water turbine 731 is positioned in the first cavity 711, and the first cavity 711 can form an independent work space of the water turbine 731. The water outlet 537 is communicated with the water inlet pipe 733, and a powerful jet flow formed by the gas-liquid mixture flows to the hydraulic turbine 731 from the water inlet pipe 733 to push the radial runner of the hydraulic turbine 731 to rotate rapidly, so as to drive the cutting part 75 coaxially installed with the hydraulic turbine 731 to rotate to cut the gas-liquid mixture in the second cavity 713 to form high-saturation gas-dissolved water. The water outlet pipe 735 is communicated with the second cavity 713, and the gas-liquid mixture does work on the hydro turbine 731 and then flows into the second cavity 713 from the water outlet pipe 735. Further, the cutting part 75 includes a rotating shaft 751 and a cutting impeller 753, one end of the rotating shaft 751 extends into the first cavity 711 and is mounted on the hydro turbine device 73, and a plurality of cutting impellers 753 are arranged at intervals in a part of the rotating shaft 751 located in the second cavity 713. After the gas-liquid mixture flows into the second cavity 713 from the water outlet pipe 735, the cutting impeller 753 on the rotating shaft 751 is driven to rotate at a high speed due to the high-speed rotation of the hydraulic turbine 731, and the gas-liquid mixture is cut and disturbed at a high speed. The bubbles in the gas-liquid mixture are cut and disturbed for many times to become countless fine bubbles with large surface area, and the dissolved gas amount is further increased. The highly saturated gas-dissolved water is released by the releasing part 77 and enters the water body to form a large amount of micro-bubbles, and the releasing part 77 of the embodiment can be, but is not limited to, a venturi orifice.
The working principle of the micro-nano bubble preparation device 100 of the present application is described in detail below with reference to fig. 1 to 5:
the driving unit 11 drives water to flow to the water inlet 511 through the first flow meter 15, and the air compressor 31 drives air to flow to the air inlet 531 through the second flow meter 35. Along with the diameter of the water inlet 511 is reduced, liquid is sprayed out from the nozzle 513 at a very high speed, the liquid flowing at a high speed passes through the air suction chamber 533 and enters the first pipe 5351, partial vacuum is formed in the first pipe 5351, a large amount of air sucked or pressed in through the air inlet 531 enters the first pipe 5351 through the gap opening 539, the air is divided into a large amount of tiny bubbles under the action of the pressure of the sprayed water, the tiny bubbles and water form a mixture, the air-liquid mixture is discharged to the water outlet 537 through the second pipe 5353, the kinetic energy of the air-liquid mixture is converted into pressure energy in the second pipe 5353, the speed of the air-liquid mixture is reduced, the pressure of the air-liquid mixture. The bubbles are cut for many times and changed into countless small bubbles after jet disturbance, so that primary dissolved air is formed.
The water outlet 537 is communicated with the water inlet pipe 733, a gas-liquid mixture enters the hydraulic turbine 731 from the water outlet 537 to push the hydraulic turbine 731 installed in the first cavity 711 to do work and drive the cutting impeller 753 installed on the rotating shaft 751 to cut gas-liquid mixed water, when a gas-liquid two-phase flow enters a cutting field at a certain flow rate, the surface can be subjected to strong shearing, a rotational flow field can be formed in the cutting field, the gas-liquid two-phase flow forms vortex motion in the cutting field through cutting action, so that the gas flow is divided into smaller bubbles, the stronger the stirring of the cutting impeller 753 is, the finer the gas flow is divided, so that the micro-nano cutting refinement and mixing of the gas and the water are realized, high-saturation gas-dissolved water is formed in the second cavity 713, and the micro-nano bubbles are formed through the release.
Compared with the prior art, micro-nano bubble preparation facilities 100 of this application, cut apart into a large amount of small bubbles with the help of the air that gas-liquid mixing device 50 provided air feeder 30, and make its liquid with the water supply installation 10 provides form the mixture, carry out first gas-liquid mixing and dissolve gas, form the gas-liquid mixture, then provide power for hydraulic turbine device 73 through this gas-liquid mixture, drive cutting portion 75 and produce high-speed cutting in second cavity 713, turbulent motion degree improves the dispersion degree of liquid phase, the interface of liquid phase and gaseous phase is constantly updated, dissolve gas in water with high-speed gyration cutting mode, make the bubble breakage refine, improve the dissolution efficiency of gas, a large amount of micro-nano bubbles are prepared to high efficiency. This micro-nano bubble preparation facilities 100 can prepare a large amount of micro-nano bubbles fast high-efficiently, and micro-nano bubble's quality is higher, and the bubble size is stable, and the system energy consumption is low, and simple structure, the equipment modularization processing system of being convenient for.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.
Claims (8)
1. The micro-nano bubble preparation device is characterized by comprising a water supply device, an air supply device, a gas-liquid mixing device and a secondary gas dissolving device, wherein the air supply device supplies air to the gas-liquid mixing device; the secondary dissolves gas device is including dissolving gas body, hydraulic turbine device, cutting part and release portion, it is equipped with first cavity and second cavity to dissolve the gas body, the hydraulic turbine device is installed in the first cavity, the cutting part is located in the second cavity and with the coaxial setting of hydraulic turbine device, the release portion with second cavity intercommunication, gas-liquid mixture gets into flow to behind the hydraulic turbine device the second cavity, the hydraulic turbine device drives the cutting part is rotatory with right gas-liquid mixture in the second cavity cuts and forms the high saturated water solution that dissolves, and the high saturated water solution that dissolves borrows by release portion release forms micro-nano bubble.
2. The micro-nano bubble preparation device according to claim 1, wherein the water supply device comprises a driving part and a first flow meter between the driving part and the gas-liquid mixing device, and the first flow meter is used for metering the amount of liquid supplied by the driving part to the gas-liquid mixing device.
3. The micro-nano bubble preparation device according to claim 1, wherein the air supply device comprises an air compressor and a second flow meter located between the air compressor and the air-liquid mixing device, and the second flow meter is used for metering the amount of air supplied to the air-liquid mixing device by the air compressor.
4. The micro-nano bubble preparation device according to claim 1, wherein the gas-liquid mixing device comprises a water inlet portion and a mixing portion which are communicated with each other, the water inlet portion is provided with a water inlet and a nozzle which are communicated with each other, the width of the water inlet is gradually reduced along the direction of the nozzle until the width of the water inlet is the same as that of the nozzle, the mixing portion is provided with an air inlet, an air suction chamber, a mixing pipe and a water outlet, the air flows into the air suction chamber through the air inlet, the air suction chamber is communicated with the mixing pipe, the nozzle is communicated with the mixing pipe, a gap is formed between the nozzle and the air suction chamber, and liquid and air flow to the secondary air dissolving device through the mixing pipe and then flow to the secondary air dissolving.
5. The micro-nano bubble preparation device of claim 4, wherein the mixing tube comprises a first tube and a second tube which are communicated, the suction chamber is communicated with the first tube, the first tube extends along the water outlet direction, and the tube diameter of the first tube gradually increases to form the second tube.
6. The micro-nano bubble preparation device according to claim 1, wherein the cutting part comprises a rotating shaft and cutting impellers, one end of the rotating shaft extends into the first cavity and is mounted on the hydro-turbine device, and a plurality of cutting impellers are arranged at intervals on a part of the rotating shaft located in the second cavity.
7. The micro-nano bubble preparation device of claim 1, wherein the hydro-turbine device comprises a hydro-turbine, a water inlet pipe and a water outlet pipe, and a gas-liquid mixture in the gas-liquid mixing device flows into the hydro-turbine through the water inlet pipe, drives the hydro-turbine to work, and then flows into the second cavity from the water outlet pipe.
8. A micro-nano bubble preparation method is characterized by being realized by adopting the micro-nano bubble preparation device according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN113735214A (en) * | 2021-09-28 | 2021-12-03 | 无锡海拓环保装备科技有限公司 | High-efficient microbubble dissolves gas device |
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| CN117797668A (en) * | 2024-03-01 | 2024-04-02 | 山东省中地易采石油技术有限责任公司 | Micro-nano bubble water preparation system and process method for oil reservoir development |
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| CN117797668A (en) * | 2024-03-01 | 2024-04-02 | 山东省中地易采石油技术有限责任公司 | Micro-nano bubble water preparation system and process method for oil reservoir development |
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