CN110898699A - Microbubble generating device based on bubble fusion - Google Patents
Microbubble generating device based on bubble fusion Download PDFInfo
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- CN110898699A CN110898699A CN201911229903.6A CN201911229903A CN110898699A CN 110898699 A CN110898699 A CN 110898699A CN 201911229903 A CN201911229903 A CN 201911229903A CN 110898699 A CN110898699 A CN 110898699A
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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
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J7/00—Apparatus for generating gases
- B01J7/02—Apparatus for generating gases by wet methods
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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
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/48—Mixing water in water-taps with other ingredients, e.g. air, detergents or disinfectants
Abstract
The application provides a microbubble generating device based on bubble fusion relates to microbubble technical field, aims at simply, high-efficient, economically preparing and collecting the microbubble to can the size and the quantity of the microbubble of effective control production. The device comprises: bubble fusion basin, venturi channel, gas transmission system and convergent connection channel. The right side surface of the bubble fusion water tank is connected with the gas transmission system, so that a micro-pipe of the gas transmission system is immersed in the bubble fusion water tank towards the lower side, gas is injected into the micro-pipe, and micro-bubbles are continuously generated in the bubble fusion water tank by utilizing a bubble fusion mechanism; the venturi passageway passes through the convergent connecting channel is connected bubble fusion basin utilizes the low-pressure region that the throat of venturi passageway formed will produce the microbubble passes through the convergent connecting channel is leading-in the venturi passageway is with right the microbubble is collected.
Description
Technical Field
The application relates to the technical field of micro bubbles, in particular to a micro bubble generating device based on bubble fusion.
Background
The micro-bubbles generally refer to bubbles with the size below hundred microns, have the characteristics of large surface area, long retention time in water, high mass transfer efficiency and the like, and have huge application prospects in various fields such as chemical engineering, environment, biomedicine, nuclear energy and the like.
In the prior art, methods for manufacturing micro bubbles include a high-speed shear fluid method, an ultrasonic cavitation method, a thin film emulsification method, a coaxial electrospray method, a microfluidic method and the like.
Ultrasonic waves and high voltage are required to be added when the microbubbles are prepared by the ultrasonic cavitation method and the coaxial electric atomization method, so that the energy consumption is high, and the extra influence is exerted on working media; the membrane emulsification method needs to prepare a solvent in advance, and then stir the prepared solvent to form micro-bubbles, so that the micro-bubble generation efficiency is low; the high-speed shear fluid method for preparing microbubbles by utilizing the interaction between gas and liquid cannot control the uniformity of the size of the microbubbles; the microfluidic method is a method of obtaining small and uniform micro-bubbles by breaking liquid under the action of external shear force, capillary force, geometric constraint and the like by using a microfluidic unit, but the method has relatively high cost. Therefore, a simple, economical and efficient way to prepare microbubbles is needed.
Disclosure of Invention
In view of the above problems, embodiments of the present application provide a microbubble generation device based on bubble fusion, which aims to simply, efficiently and economically prepare and collect microbubbles and effectively control the size and the number of generated microbubbles.
The embodiment of the application provides a microbubble generating device based on bubble fusion, the device includes: the device comprises a bubble fusion water tank, a Venturi channel, a gas transmission system and a reducing connecting channel;
the right side surface of the bubble fusion water tank is connected with the gas transmission system, so that a micro-pipe of the gas transmission system is immersed in the bubble fusion water tank towards the lower side, gas is injected into the micro-pipe, and micro-bubbles are continuously generated in the bubble fusion water tank by utilizing a bubble fusion mechanism;
the venturi passageway passes through the convergent connecting channel is connected bubble fusion basin utilizes the low-pressure region that the throat of venturi passageway formed will produce the microbubble passes through the convergent connecting channel is leading-in the venturi passageway is with right the microbubble is collected.
Optionally, the gas transmission system consists of a gas inlet pipe, a gas distribution pipe, a reducer union and the micro pipe;
the gas inlet pipe is connected with one end of the gas distribution pipe and is used for continuously injecting gas into the micro pipe;
the gas distribution pipe is formed by a plurality of sub gas pipes with the same aperture in parallel, the micro pipe is formed by a plurality of sub micro pipes in parallel, and the number of the sub gas pipes is the same as that of the sub micro pipes;
the other end of the gas distribution pipe is connected with the micro-pipe through a reducing joint, and gas injected through the gas inlet pipe is uniformly distributed to the sub-micro-pipes of the micro-pipe;
the surface of the continuous fused bubble generated at the tail end of the micro-tube forms a surface wave, the surface wave confluence pinches off the sub-bubbles, and one or more micro-bubbles are generated in the bubble fusion water tank.
Optionally, the sub-microtubes are obliquely immersed downwards in the bubble fusion water tank, so that the gas injected into the microtubes generates micro-bubbles in the bubble fusion water tank.
Optionally, the front side and the rear side of the bubble fusion water tank are respectively provided with a water outlet and a water replenishing port;
the right side surface of the bubble fusion water tank is provided with a plurality of circular openings which are horizontally arranged at equal intervals and used for installing the gas transmission system, and the number of the circular openings is the same as that of the sub-micro-tubes included in the micro-tubes;
the left side surface of the bubble fusion water tank is provided with a rectangular opening, and the rectangular opening is connected with one end of the gradually-reduced connecting channel;
the other end of the reducing connecting channel is connected with the throat part of the Venturi channel.
Optionally, the reducer union is located inside the bubble fusion water tank, and one end of the reducer union is connected with the sub-micro-pipe in a threaded manner;
the other end of the reducing joint is connected with the gas distribution pipe at the round openings through threads;
the reducing joint and the interface of the gas distribution pipe are sealed by a rubber ring.
Optionally, introducing a liquid working medium into the Venturi channel, and forming a low-pressure area at the throat part of the Venturi channel;
the throat part is provided with an arc-shaped opening;
the arc opening is connected convergent interface channel, through convergent interface channel will microbubble in the bubble fusion basin is carried to venturi channel.
Optionally, the venturi channel is fixed to the bubble fusion water tank by a positioning pin; the venturi channel comprises an outlet section, a converging section, the throat, and an inlet section;
the outlet section and the inlet section have the same inner diameter;
the inclination angle of the gradually-converging section is smaller than that of the gradually-converging section;
the inner diameter of the throat part is smaller than the inner diameter of the outlet section and the inner diameter of the inlet section, and the inner diameter of the throat part is adjusted to control the collection quantity of micro bubbles in the bubble fusion water tank.
Optionally, the diameter range of the sub-microtubes is: 0.05mm-0.5 mm.
Optionally, the number of the sub-microtubules is determined by the number of the microbubbles to be prepared.
Optionally, the diameter of the sub-microtubules is determined by the size of the microbubbles to be prepared.
The utility model provides a microbubble generating device based on bubble fusion, the sub-microtubes of the row that ally oneself with of orientation under the bubble fusion basin sets up through injecting gas to the sub-microtubes of the row that ally oneself with continuously, utilizes the bubble to fuse the mechanism, produces a plurality of microbubbles at bubble fusion basin, has realized the batch preparation of microbubble. Simultaneously, through the reducing connecting channel, the bubble fusion water tank is externally connected with a Venturi channel, liquid working medium is introduced into the Venturi channel, and micro bubbles generated by the bubble fusion water tank are led out by utilizing a low-pressure area formed by the throat part of the Venturi channel, so that the delivery and the collection of the micro bubbles are realized.
The microbubble generating device based on the bubble fusion is used for preparing microbubbles, an action field does not need to be added, the equipment is simple, and the energy consumption is low; the method is simple and rapid, and the number and the diameter of the generated micro-bubbles can be adjusted by adjusting the number and the size of the sub-micro-tubes in the row.
Drawings
Fig. 1 is a schematic diagram of a process of generating microbubbles at the end of a sub-microtube according to an embodiment of the present application;
fig. 2A is a schematic structural diagram of a microbubble generation device according to an embodiment of the present application;
fig. 2B is a front view and a top view of a microbubble generation device according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a bubble fusion water tank according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of a gas delivery system according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a venturi channel according to an embodiment of the present disclosure.
Reference numerals: 1. the Venturi channel is communicated; 11. an outlet section; 12. a gradual-contraction section; 13. a throat; 14. a tapered section; 15. an inlet section; 16. an arc-shaped opening; 2. a bubble fusion water tank; 21. a water replenishing port; 22. a water outlet; 23. a circular opening; 24. a rectangular opening; 3. a gas delivery system; 31. a microtube; 32. a daughter microtubule; 33. an air inlet pipe; 34. a gas distributing pipe; 35. a bronchus; 36. a reducer union; 4. the tapered connecting channel.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.
The micro-bubbles generally refer to bubbles with the size below hundred microns, have the characteristics of large surface area, long retention time in water, high mass transfer efficiency and the like, and have huge application prospects in various fields such as chemical engineering, environment, biomedicine, nuclear energy and the like.
For example, in biomedicine, microbubbles can be used as a vector for gene transfection and can also be used for targeted delivery of macromolecular drugs. In the aspect of environmental protection, when the microbubbles filled with ozone are used for sewage treatment, the characteristics of large surface area and slow rising speed can effectively improve the water purification efficiency, and in addition, the microbubbles can be used for adsorption treatment of suspended organic matters. Meanwhile, the micro-bubbles are widely applied to the aspects of ship resistance reduction, mining flotation efficiency improvement, soilless culture and the like.
In the prior art, methods for manufacturing micro bubbles include a high-speed shear fluid method, an ultrasonic cavitation method, a thin film emulsification method, a coaxial electrospray method, a microfluidic method and the like.
Ultrasonic waves and high voltage are required to be added when the microbubbles are prepared by the ultrasonic cavitation method and the coaxial electric atomization method, so that the energy consumption is high, and the extra influence is exerted on working media; the membrane emulsification method needs to prepare a solvent in advance, and then stir the prepared solvent to form micro-bubbles, so that the micro-bubble generation efficiency is low; the high-speed shear fluid method for preparing microbubbles by utilizing the interaction between gas and liquid cannot control the uniformity of the size of the microbubbles; the microfluidic method is a method of obtaining small and uniform micro-bubbles by breaking liquid under the action of external shear force, capillary force, geometric constraint and the like by using a microfluidic unit, but the method has relatively high cost.
In view of the above problems, the applicant proposes a microbubble generator based on bubble fusion, which utilizes the principle that a lower oriented micro tube immersed in a water tank is inflated, continuous fusion bubbles generated at the tail ends of sub micro tubes form surface capillary waves, and the sub micro tubes are pinched off when the surface capillary waves are converged to form microbubbles.
Referring to fig. 1, fig. 1 is a schematic diagram of a process for generating microbubbles at the tip of a microtube according to an embodiment of the present application. The following describes in detail the process of preparing microbubbles by the bubble fusion mechanism based on the embodiment of the present application with reference to fig. 1.
At t1At the moment, the end of the sub-microtubule has the first t1-1, the continuous bubbles generated by the child microtubules are merged to form a large bubble, which is considered as the parent bubble, at t1At time + △ t, the tail end of the child microtubule will generate continuous bubbles, and the new bubbles generated at the tail end of the child microtubule will be regarded as parent bubbles, t in FIG. 11At +5.5ms, a mother bubble is generated at the end of the child microtubule, t1At +7.1ms, the parent bubble and the parent bubble begin to merge, t1Starting at +7.4ms, the surface of the mother bubble fused with the father bubble forms a surface capillary wave, and the surface capillary wave is t1+7.7ms、t1+8ms、t1When the bubbles meet at +8.3ms, the surface capillary wave meets and pinches off tiny bubbles, the tiny bubbles are formed by pinching off surface capillary waves formed by the fusion of the parent bubbles and the parent bubbles, the tiny bubbles are regarded as child bubbles, and the time t is1At +8.6ms, the sub-bubbles are pinched off to form micro-bubbles, and the micro-bubbles are diffused into the bubble fusion water tank.
T in FIG. 11And the +7.1ms moment shows the gas injection direction of the child micro-tube and the fusion direction of the parent bubbles and the parent bubbles, so that the newly generated parent bubbles at the tail ends of the child micro-tubes can be fused with the parent bubbles, surface capillary waves are formed during fusion, the parent bubbles are prevented from being directly attached to the parent bubbles, a certain included angle is required to be kept between the generation direction of the parent bubbles and the vertical direction, and the child micro-tubes are required to be obliquely and downwards immersed in the water tank.
The sub-microtubes 32 are obliquely immersed downward in the bubble fusion water tank 2 so that the gas injected into the microtubes 31 generates micro-bubbles in the bubble fusion water tank 2.
The included angle between the central line of the sub-microtube 32 inclining downwards and the vertical direction is about 3 degrees.
The bubble fusion water tank 2, the venturi channel 1, the tapered connecting channel 4 and the gas transmission system 3 including the micro-tube 31 constitute the micro-bubble generation device based on bubble fusion in the embodiment of the present application.
Referring to fig. 2A and 2B, fig. 2A is a schematic structural diagram of a microbubble generation device according to an embodiment of the present application.
Fig. 2B is a front view and a top view of the microbubble generation device according to the embodiment of the present application.
The device comprises: the device comprises a bubble fusion water tank 2, a Venturi channel 1, a gas transmission system 3 and a reducing connecting channel 4;
the right side surface of the bubble fusion water tank 2 is connected with the gas transmission system 3, so that the lower part of a micro-pipe 31 of the gas transmission system 3 is immersed in the bubble fusion water tank 2, gas is injected into the micro-pipe 31, and micro-bubbles are continuously generated in the bubble fusion water tank 2 by utilizing a bubble fusion mechanism;
the bubble fusion water tank 2 is made of materials such as a transparent acrylic plate, the right side surface of the bubble fusion water tank is connected with the gas transmission system 3, and the left side surface of the bubble fusion water tank is connected with the Venturi channel 1; the front side surface of the bubble fusion water tank 2 is provided with a water replenishing hole 21, and the water replenishing hole 21 is used for replenishing liquid working media which flow into a Venturi channel along with micro bubbles and are evaporated after long-term use; the rear side surface of the bubble fusion water tank 2 is provided with a water outlet 22, and the water outlet 22 is used for replacing liquid working media and discharging the liquid working media used in the bubble fusion water tank 2 for a long time.
The front side and the rear side of the bubble fusion water tank are respectively provided with a water outlet and a water replenishing port;
the right side surface of the bubble fusion water tank 2 is provided with a plurality of circular openings 23 which are horizontally arranged at equal intervals and used for installing the gas transmission system 3, and the number of the circular openings 23 is the same as that of the sub-micro-tubes 32 included in the micro-tube 31;
referring to fig. 3, fig. 3 is a schematic structural view of a bubble fusion water tank according to an embodiment of the present application.
The right side of the bubble fusion water tank 2 is provided with 5 circular openings 23 which are horizontally arranged at equal intervals, the circular openings 23 are respectively and correspondingly connected with the gas distribution pipes of the gas transmission system 3, wherein the number of the circular openings 23 can be changed according to the number of the sub gas pipes 35 of the gas distribution pipes of the gas transmission system 3 and the number of the sub micro pipes of the micro pipes.
The left side surface of the bubble fusion water tank 2 is provided with a rectangular opening 24, and the rectangular opening 24 is connected with one end of the tapered connecting channel 4;
the other end of the tapering connecting channel 4 is connected to the throat of the venturi channel 1.
The rectangular opening 24 on the left side of the bubble fusion water tank 2 is used for realizing the connection between the bubble fusion water tank 2 and the tapered connecting channel 4, and the length of the rectangular opening 24 can be set to be larger than the total length of the plurality of circular openings 23, so as to better collect micro bubbles generated in the bubble fusion water tank 2.
The gas transmission system 3 connected with the right side surface of the bubble fusion water tank 2 consists of a gas inlet pipe 33, a gas distribution pipe 34, a reducing joint 36 and the micro pipe 31;
referring to fig. 4, fig. 4 is a schematic structural diagram of a gas delivery system according to an embodiment of the present application.
The gas inlet pipe 33 is connected with one end of the gas distribution pipe 34 and is used for continuously injecting gas into the micro pipe;
the gas distribution pipe 34 is composed of a plurality of sub gas pipes 35 with the same aperture side by side, the micro pipe 31 is composed of a plurality of sub micro pipes 32 in a row, and the number of the sub gas pipes 35 is the same as that of the sub micro pipes 32;
the gas is continuously injected into the gas transmission system 3 from the gas inlet pipe 33, the gas distribution pipe 34 uniformly distributes the continuously injected gas to each sub-gas pipe 35, the sub-gas pipes 35 are connected with the micro-pipes 31 through the reducer joints 36, and the sub-micro-pipes 32 of the micro-pipes 31 respectively correspond to the sub-gas pipes 35 of the gas distribution pipe 34. The factor gas tube 35 has the same aperture, and the gas distributed to each sub-micro-tube 32 is also uniform, so that when the sizes of the sub-micro-tubes 32 are the same, the sub-micro-tubes 32 in the row can simultaneously generate a plurality of micro-bubbles with the same or equivalent sizes, thereby completing the batch preparation of the micro-bubbles.
Increasing or decreasing the number of sub-micro-tubes 32 can adjust the number of micro-bubbles to be produced. For example, when the micro-bubbles are required to be prepared on a large scale, the number of the sub-micro-tubes 32 and the gas distribution tubes 34 may be increased.
The number of the sub-microtubes 32 is determined by the number of microbubbles to be prepared.
The other end of the gas distribution pipe 34 is connected with the micro pipe 31 through a reducer union 36, and gas injected through the gas inlet pipe 33 is uniformly distributed to each sub micro pipe 32 of the micro pipe 31;
the size of the sub-microtubes 32 is determined by the size of the microbubbles to be prepared, and their diameter ranges: 0.05mm-0.5 mm. When microbubbles of smaller size are to be prepared, the diameter of the microtubes 32 may be reduced accordingly.
The surface of the continuous fused bubbles generated at the end of the sub-micro-tube 31 forms surface capillary waves, and the surface capillary waves are converged and break the sub-bubbles, so that one or more micro-bubbles are generated in the bubble fusion water tank 2.
The aperture of the factor air pipe 35 is larger than the size of the sub-micro-pipe 32, and a reducer union 36 is needed to be used for connecting the micro-pipe 31 and the air distribution pipe 34, the reducer union 36 and the micro-pipe 31 connected through the reducer union 36 are located in the bubble fusion water tank 2, and the air inlet pipe 33 and the air distribution pipe 34 are located outside the bubble fusion water tank 2. One end of the reducing joint 36 is connected with the gas distribution pipe 34 outside the bubble fusion water tank 2 through threads, the round opening 23 at the connection part is sealed through a rubber ring, and the other end of the reducing joint is also connected with the micro pipe 31 through threads, so that the gas transmission system 3 can continuously and reliably supply gas to the micro pipe 31.
By controlling the rate at which the gas is injected through the gas inlet pipe 33, the number and size of microbubbles generated in the bubble fusion water tank 2 can also be controlled. Generally, the slower the velocity of the injected gas, the greater the number of microbubbles generated and the smaller the size of the microbubbles.
The size of the generated micro bubbles can also be changed by changing the viscosity of the liquid working medium in the bubble fusion water tank 2 or changing the density ratio of the liquid in the bubble fusion water tank 2 to the gas injected by the gas inlet pipe 33. In the case that the gas injected in the gas inlet pipe 33 is air and the liquid in the bubble fusion water tank 2 is water, the size of the generated micro bubbles is approximately in the range of 20-150 micrometers; if the viscosity of the liquid working medium in the bubble fusion water tank 2 is increased or the liquid-gas density ratio of the liquid in the bubble fusion water tank 2 to the gas injected by the gas inlet pipe 33 is reduced, the generated micro bubbles can reach below 10 microns.
The reducer joint 36 is positioned inside the bubble fusion water tank 2, and one end of the reducer joint 36 is connected with the sub-micro-pipe 31 through threads;
the other end of the reducing joint 36 is connected with the gas distribution pipe 34 at the plurality of round openings 23 in a threaded manner;
the interface between the reducer union 36 and the gas distribution pipe 34 is sealed by a rubber ring.
The venturi passageway that 2 left sides of bubble fusion basin are connected leads to 1 and includes: outlet section 11, tapering section 12, tapering section 14, said throat 13 and inlet section 15;
referring to fig. 5, fig. 5 is a schematic structural diagram of a venturi channel according to an embodiment of the present application.
Venturi passageway passes through 1 convergent connecting channel 4 connects bubble fuses basin 2 utilizes the low-pressure region that venturi channel 1's throat 13 formed will produce the microbubble passes through convergent connecting channel 4 is leading-in venturi channel 1, with right the microbubble is collected.
The Venturi channel is fixed on the bubble fusion water tank 2 through a positioning pin 1;
the locating pin is generally located at the bottom edge of the bubble-fusion water tank 2, which is at the position of the venturi channel 1 so that the throat 13 of the venturi channel 1 can be located at a level equivalent to the rectangular opening 24 of the bubble-fusion water tank 2.
The outlet section 11 and the inlet section 15 have the same inner diameter;
the angle of inclination of the tapered section 12 is less than the angle of inclination of the tapered section 14;
the inner diameter of the throat portion 13 is smaller than the inner diameter of the outlet section 11 and the inner diameter of the inlet section 15, and the inner diameter of the throat portion 13 is adjusted to control the amount of micro bubbles collected in the bubble fusion water tank 2.
The venturi channel 1 can be made of acrylic glass or stainless steel, aluminum.
The narrowest position of the pipeline of the Venturi channel 1 which is communicated with liquid can form a low-pressure area, so that the pressure of the narrowest position of the Venturi channel 1 can be adjusted by adjusting the size of each section of the Venturi channel 1, and the collection speed of micro-bubbles in the bubble fusion water tank 2 is further adjusted.
The specific dimensions of the venturi channel 1 may be: the inner diameters of the inlet section 15 and the outlet section 11 are 16mm, the inner diameter of the throat part 13 is 6mm, the length of the throat part is 15mm, the inclination angle of the tapered section is 20 degrees, and the inclination angle of the diverging section 12 is 11 degrees. An arc-shaped opening 16 with a height of 2mm is provided in the throat 13 to achieve the connection of the venturi channel 1 with the tapering connecting channel 4.
In addition, the flow speed of the liquid working medium introduced into the Venturi channel 1 can be adjusted, and the pressure of the throat 13 of the Venturi channel 1 can also be adjusted, wherein generally, the higher the flow speed of the liquid working medium is, the lower the pressure of the throat 13 is.
Introducing a liquid working medium into the Venturi channel 1, and forming a low-pressure area at the throat part of the Venturi channel 1;
the throat 13 is provided with an arc-shaped opening 16;
the arc opening 16 is connected the convergent connecting channel 4, through the convergent connecting channel 4 will the microbubble in the bubble fusion basin 2 is carried to venturi channel 1.
The outlet section 11 of the venturi channel 1 is externally connected with a container, so that the collection of liquid containing micro-bubbles can be completed.
This application connects convergent interface channel 4 through arc opening 6 at venturi channel 1 throat 13, utilizes venturi channel 1 throat 13 and bubble to fuse the inside pressure differential of basin 2, and the microbubble that produces in fusing basin 2 with the bubble derives, and the microbubble that the bubble fused in the basin 2 is located liquid working medium, and venturi channel 1 lets in liquid working medium equally, makes the collection of microbubble more convenient.
The application does not need to add an action field (such as a high-pressure field and an ultrasonic field) for preparing the micro-bubbles and collecting the micro-bubbles, so the energy consumption is low and the noise is avoided; additional influence on the working medium or the micro-bubble generating device of the bubble fusion water tank 2 can not be caused.
The above detailed description is made on a microbubble generation device based on bubble fusion provided by the present application, and specific examples are applied herein to illustrate the principles and embodiments of the present application, and the above description of the embodiments is only used to help understand the method and the core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A microbubble generation device based on bubble fusion, characterized in that the device comprises: the device comprises a bubble fusion water tank, a Venturi channel, a gas transmission system and a reducing connecting channel;
the right side surface of the bubble fusion water tank is connected with the gas transmission system, so that a micro-pipe of the gas transmission system is immersed in the bubble fusion water tank towards the lower side, gas is injected into the micro-pipe, and micro-bubbles are continuously generated in the bubble fusion water tank by utilizing a bubble fusion mechanism;
the venturi passageway passes through the convergent connecting channel is connected bubble fusion basin utilizes the low-pressure region that the throat of venturi passageway formed will produce the microbubble passes through the convergent connecting channel is leading-in the venturi passageway is with right the microbubble is collected.
2. The bubble fusion based microbubble generation device of claim 1, wherein the gas delivery system is composed of a gas inlet pipe, a gas distribution pipe, a reducer union and the micro pipe;
the gas inlet pipe is connected with one end of the gas distribution pipe and is used for continuously injecting gas into the micro pipe;
the gas distribution pipe is formed by a plurality of sub gas pipes with the same aperture in parallel, the micro pipe is formed by a plurality of sub micro pipes in parallel, and the number of the sub gas pipes is the same as that of the sub micro pipes;
the other end of the gas distribution pipe is connected with the micro-pipe through a reducing joint, and gas injected through the gas inlet pipe is uniformly distributed to the sub-micro-pipes of the micro-pipe;
the surface of the continuous fused bubbles generated at the tail end of the micro-tube forms surface capillary waves, the surface capillary waves are converged and pinch off the sub-bubbles, and one or more micro-bubbles are generated in the bubble fusion water tank.
3. The bubble fusion based microbubble generation device according to claim 2, wherein the sub-microtubes are obliquely submerged downward in the bubble fusion water tank, so that the gas injected into the microtubes generates the microbubbles in the bubble fusion water tank.
4. The bubble fusion-based microbubble generation device according to claim 2, wherein the front side and the rear side of the bubble fusion water tank are respectively provided with a water discharge port and a water replenishment port;
the right side surface of the bubble fusion water tank is provided with a plurality of circular openings which are horizontally arranged at equal intervals and used for installing the gas transmission system, and the number of the circular openings is the same as that of the sub-micro-tubes included in the micro-tubes;
the left side surface of the bubble fusion water tank is provided with a rectangular opening, and the rectangular opening is connected with one end of the gradually-reduced connecting channel;
the other end of the reducing connecting channel is connected with the throat part of the Venturi channel.
5. The bubble fusion based microbubble generation device according to claim 4, wherein the reducer union is located inside the bubble fusion water tank, and one end of the reducer union is connected with the sub-microtube in a threaded manner;
the other end of the reducing joint is connected with the gas distribution pipe at the round openings through threads;
the reducing joint and the interface of the gas distribution pipe are sealed by a rubber ring.
6. The bubble fusion based microbubble generation apparatus according to claim 1,
introducing a liquid working medium into the Venturi channel, and forming a low-pressure area at the throat part communicated with the Venturi channel;
the throat part is provided with an arc-shaped opening;
the arc opening is connected convergent interface channel, through convergent interface channel will in the bubble fuses the basin the microbubble is carried to venturi channel.
7. The bubble fusion based microbubble generation device of claim 6, wherein the venturi channel is fixed to the bubble fusion water tank by a positioning pin; the venturi channel comprises an outlet section, a converging section, the throat, and an inlet section;
the outlet section and the inlet section have the same inner diameter;
the inclination angle of the gradually-converging section is smaller than that of the gradually-converging section;
the inner diameter of the throat part is smaller than the inner diameter of the outlet section and the inner diameter of the inlet section, and the inner diameter of the throat part is adjusted to control the collection amount of the micro-bubbles in the bubble fusion water tank.
8. The bubble fusion based microbubble generation apparatus according to claim 2, wherein the diameter range of the sub-microtubes is: 0.05mm-0.5 mm.
9. The bubble fusion based microbubble generation device of claim 2, wherein the number of the sub-microtubules is determined by the number of microbubbles to be prepared.
10. The bubble fusion based microbubble generation device of claim 2, wherein the diameter of the sub-microtubules is determined by the size of the microbubbles to be prepared.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN110898699B (en) | 2020-12-15 |
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