WO2023112707A1 - 超音波霧化装置 - Google Patents

超音波霧化装置 Download PDF

Info

Publication number
WO2023112707A1
WO2023112707A1 PCT/JP2022/044447 JP2022044447W WO2023112707A1 WO 2023112707 A1 WO2023112707 A1 WO 2023112707A1 JP 2022044447 W JP2022044447 W JP 2022044447W WO 2023112707 A1 WO2023112707 A1 WO 2023112707A1
Authority
WO
WIPO (PCT)
Prior art keywords
ultrasonic
atomization device
ultrasonic atomization
liquid column
carrier gas
Prior art date
Application number
PCT/JP2022/044447
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
一雄 松浦
Original Assignee
ナノミストテクノロジーズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ナノミストテクノロジーズ株式会社 filed Critical ナノミストテクノロジーズ株式会社
Priority to JP2023567685A priority Critical patent/JPWO2023112707A1/ja
Publication of WO2023112707A1 publication Critical patent/WO2023112707A1/ja

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
    • B05B17/06—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods using ultrasonic or other kinds of vibrations

Definitions

  • the present invention relates to a device for ultrasonically vibrating a liquid to atomize it, and more particularly to a device for efficiently atomizing a liquid by blowing a carrier gas such as air onto the surface of a liquid column generated by ultrasonic vibrations.
  • Devices that atomize liquids with ultrasonic vibrations are required to have high atomization efficiency. This is because a large amount of mist can be generated with high atomization efficiency and low power consumption.
  • Devices that make liquid mist by ultrasonic vibration are used in a variety of industrial equipment. is used. It is difficult for an atomization device equipped with a large number of ultrasonic transducers to efficiently atomize a liquid into mist with all the ultrasonic transducers. cannot reliably increase the amount of mist generated. This is because the amount of mist generated by each ultrasonic transducer is not uniform.
  • an apparatus for atomizing a liquid by ultrasonic vibration blows a carrier gas such as air onto the surface of a liquid column 806 generated by ultrasonic vibration of an ultrasonic oscillator 802 to increase atomization efficiency.
  • This ultrasonic atomization device 800 blows a carrier gas onto the surface of each liquid column 806 to improve atomization efficiency.
  • the amount to be made is remarkably reduced to less than a fraction of the ultrasonic transducer 802 on the upstream side. This is because the carrier gas blown to the surface of the liquid column 806 on the downstream side contains mist at a high concentration and the relative humidity of the carrier gas becomes high. Therefore, even if a large number of ultrasonic transducers 802 are provided, the amount of solution corresponding to the number cannot be atomized into mist.
  • the present inventors have proposed a cylindrical body 912 having a spray port 913 at its upper end above an ultrasonic transducer 902 and having a shape such as a cylindrical shape or a conical horn that tapers toward the spray port 913 . is disposed near the liquid column 906 generated by ultrasonic vibration, and the cylinder 912 is provided with a jet port 913 for supplying the carrier gas from the carrier gas source to the mist sprayed from the spray port 913.
  • An ultrasonic atomization device 900 has been developed (see Patent Document 1). With this structure, compared to the ultrasonic atomization device 800 shown in FIG.
  • the present invention was developed for the purpose of preventing the above-mentioned adverse effects.
  • One object of the present invention is to equip a plurality of ultrasonic vibrators and to increase the atomization efficiency of each ultrasonic vibrator.
  • An ultrasonic atomization device comprises: a plurality of ultrasonic transducers for ultrasonically vibrating a solution; an atomization chamber in which the plurality of ultrasonic transducers are arranged; , a blower duct arranged along the array direction of a plurality of liquid columns generated by ultrasonic vibration of an ultrasonic transducer, and a blower for forcibly blowing a carrier gas to the blower duct.
  • the blower duct has an ejection opening on the opposite wall facing the liquid column for blowing the carrier gas onto the liquid column.
  • the fan duct includes one or more split plates that divide the fan duct into a plurality of split ducts in multiple stages, and the split plate is supplied to the fan duct.
  • the carrier gas can be divided and blown to each ejection opening.
  • a plurality of ultrasonic transducers are arranged in a line so that a plurality of liquid columns can be arranged in a line.
  • a plurality of ultrasonic transducers are arranged in a straight line so that a plurality of liquid columns can be arranged in a straight line.
  • a plurality of ultrasonic transducers are arranged in a ring shape, and a fan duct is formed inside a liquid column generated in a ring shape by the plurality of ultrasonic transducers. can be placed.
  • ultrasonic transducers are arranged in a plurality of rows, and a fan duct is arranged between the plurality of rows of liquid columns generated by the plurality of rows of ultrasonic transducers.
  • a blower duct may provide ejection openings in the opposite wall through which the carrier gas is blown on both sides of the liquid column.
  • a fan duct is arranged on one side of a liquid column generated by ultrasonic vibration, and the fan duct has an ejection opening for blowing a carrier gas on one side of the liquid column.
  • Another embodiment of the ultrasonic atomization device of the present invention is characterized in that the air ducts are arranged on both sides of a liquid column generated by ultrasonic vibration, and the air ducts on both sides of the liquid column are arranged on both sides of the liquid column with a carrier gas.
  • a carrier gas can be provided in the opposing wall with ejection openings through which the
  • the ejection opening can be opened at a position where the carrier gas is blown toward the liquid column generated by ultrasonic vibration.
  • the ejection opening can be opened at a position where the carrier gas is blown between adjacent liquid columns.
  • the ejection opening can be a slit extending in the vertical direction of the liquid column.
  • the length of the slit of the ejection opening can be 0.5 to 1.5 times the height of the liquid column.
  • the ejection opening of the blower duct can have different opening areas.
  • the cross-sectional area of the air duct can be made different in the direction in which the liquid columns are arranged.
  • the ultrasonic atomization device of the present invention is equipped with a plurality of ultrasonic vibrators, and the atomization efficiency of each ultrasonic vibrator is increased to increase the total amount of atomization, and is manufactured with a simple structure. It has the advantage of being able to mass-produce efficiently while reducing costs.
  • FIG. 1 is a schematic horizontal sectional view of an ultrasonic atomization device according to one embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the ultrasonic atomization device shown in FIG. 1 taken along the line II-II.
  • FIG. 3 is a cross-sectional view of the ultrasonic atomization device shown in FIG. 1 taken along line III-III.
  • FIG. 4 is a schematic horizontal sectional view of an ultrasonic atomization device according to another embodiment of the invention.
  • 5 is a cross-sectional view of the ultrasonic atomization device shown in FIG. 4 taken along the line VV.
  • FIG. 6 is a schematic horizontal sectional view of an ultrasonic atomization device according to another embodiment of the invention.
  • FIG. 7 is a schematic horizontal sectional view of an ultrasonic atomization device according to another embodiment of the invention.
  • FIG. 8 is a schematic horizontal sectional view of an ultrasonic atomizer according to another embodiment of the invention.
  • FIG. 9 is a schematic horizontal sectional view of an ultrasonic atomization device according to another embodiment of the invention.
  • 10 is an enlarged cross-sectional view of the main part of the ultrasonic atomization device shown in FIG. 9.
  • FIG. FIG. 11 is a schematic horizontal sectional view of an ultrasonic atomization device according to another embodiment of the invention.
  • FIG. 12 is a schematic perspective view showing an example in which the ejection opening is a slit.
  • FIG. 13 is a schematic perspective view showing an example in which the ejection openings are a plurality of through holes.
  • FIG. 14 is a schematic vertical sectional view of a conventional ultrasonic atomizer.
  • FIG. 15 is a schematic vertical cross-sectional view of an ultrasonic atomization device according to a conventional example (Patent Document 1).
  • the ultrasonic atomization device of the present invention turns a liquid into fine nano-mist by ultrasonic vibration.
  • An apparatus for atomizing a solution by ultrasonic vibration is suitable for separating and concentrating a solvent or solute such as water or alcohol from a solution, or for separating high-purity water (solvent) from a solution. It is important for the device used for this purpose to increase the atomization efficiency to increase the energy efficiency, and to reduce the particle size of the mist to increase the atomization efficiency of the fine mist.
  • the ultrasonic atomization device can improve the atomization efficiency of nano-mist by blowing a carrier gas such as air onto the surface of the liquid column protruding from the liquid surface due to ultrasonic vibration.
  • a carrier gas such as air onto the surface of the liquid column protruding from the liquid surface due to ultrasonic vibration.
  • Fresh carrier gas such as air blown on the surface of the liquid column blows off the mist scattered in the air from the interface between the liquid and the gas with the energy of ultrasonic vibration, separates it from the surface of the liquid column, and separates it from the surface of the liquid column. This is because the mist is vaporized into water vapor, and then the water vapor is liquefied into nano-mist.
  • the mist separated from the surface of the liquid column must be vaporized into water vapor, and the mist mixture gas containing the vaporized water vapor can be cooled to a supersaturated state of water vapor. is required to liquefy into a nano-mist environment.
  • air is generally used as the carrier gas
  • any gas that can be used to improve atomization efficiency such as nitrogen gas, can also be used.
  • the energy of ultrasonic vibration separates micron-sized mist from the surface of the liquid column.
  • the ultrasonic atomizer converts the micron-sized mist separated from the surface of the liquid column into nano-mist to improve the atomization efficiency of the nano-mist.
  • the micron-sized mist separated from the surface of the liquid column is vaporized by the carrier gas blown onto the surface of the liquid column to become water vapor.
  • the carrier gas is blown onto the liquid column to lower the relative humidity on the surface of the liquid column and create an environment that facilitates vaporization.
  • the carrier gas that vaporizes the mist on the surface of the liquid column is cooled by the vaporization heat of the mist, and the temperature drops.
  • nano-mist is generated by vaporizing micron-sized mist, the concentration of easily vaporizable components increases. For example, when salt water is ultrasonically vibrated and atomized into nano-mist, the nano-mist becomes close to pure water with low salt concentration. Therefore, the nanomist can be collected and the pure water can be separated from the solution. Also, the alcohol concentration can be increased by recovering the mist as nano-mist from the alcohol water.
  • Ultrasonic atomizers are used for the separation of solutions due to the above properties, but in this application, it is required to increase the atomization efficiency of the nano-mist in order to efficiently separate the solutions. Furthermore, in other applications as well, the ultrasonic atomizer is required to be highly efficient in atomizing fine mist. [Embodiment 1]
  • FIG. 1 is a horizontal cross-sectional view of a schematic configuration of an ultrasonic atomization device 100 according to Embodiment 1 of the present invention
  • FIG. 2 is a vertical cross-sectional view of the ultrasonic atomization device 100 shown in FIG.
  • FIG. 3 shows a longitudinal cross-sectional view
  • FIG. 3 shows a vertical cross-sectional view of the ultrasonic atomization device 100 shown in FIG.
  • the ultrasonic atomization device 100 shown in these figures includes a plurality of ultrasonic transducers 2 for ultrasonically vibrating a solution 1, an atomization chamber 4 in which the plurality of ultrasonic transducers 2 are arranged in a line, A fan duct 7 extending along the arrangement direction of a plurality of ultrasonic transducers 2 arranged in a line in an atomization chamber 4 and a fan 9 for forcibly blowing a carrier gas to the fan duct 7 are provided. .
  • the contents described in the ultrasonic atomization device 100 also apply to other embodiments described later unless contradictory. (Atomization chamber 4)
  • the atomization chamber 4 is supplied with liquid to be atomized, such as water or solution, at a constant liquid level.
  • the atomization chamber 4 is supplied with different liquids depending on the application of the ultrasonic atomization device 100.
  • a solution in which a solute such as salt is dissolved in water separates the water, concentrates the salt water, and produces mist. It can be recovered to separate pure water from the solution, and can be used for purposes such as concentrating alcohol by ultrasonically vibrating alcoholic water.
  • the atomization chamber 4 is supplied with the solution 1 to maintain the liquid level at a set value.
  • the level sensor detects the liquid level in the atomization chamber 4, and the level sensor controls the operation of the pump. can hold. (Ultrasonic transducer 2)
  • the atomization chamber 4 shown in FIGS. 2 and 3 has a plurality of ultrasonic transducers 2 fixed to the bottom in a posture that emits ultrasonic waves upward.
  • the ultrasonic transducer 2 is arranged at a constant depth that maximizes atomization efficiency.
  • Each ultrasonic transducer 2 is connected to an ultrasonic power supply (not shown) and excited by an alternating current of several tens of KHz to several MHz supplied from the ultrasonic power supply to ultrasonically vibrate.
  • Each ultrasonic vibrator 2 is placed at the same depth and emits ultrasonic vibrations upward to protrude a liquid column 6 from the liquid surface 5 .
  • the ultrasonic oscillator 2 radiates ultrasonic vibrations with a narrow radiation angle to project a liquid column 6 from the liquid surface 5 .
  • the liquid column 6 separates the liquid in the form of a mist from the surface with the energy of the ultrasonic vibrations.
  • the mist separated from the liquid column 6 is dispersed in the forcibly blown carrier gas and discharged as a mist mixed gas.
  • a plurality of ultrasonic transducers can be fixed outside the bottom of the atomization chamber in a posture that emits ultrasonic waves upward.
  • a plurality of ultrasonic transducers 2 are arranged in a line at the bottom of the atomization chamber 4 .
  • the plurality of ultrasonic transducers 2 are arranged in a line on both sides of the air duct 7 as shown in FIG.
  • the ultrasonic atomization device 100 with this structure can blow the carrier gas onto two lines of the liquid column 6 with one blowing duct 7, reduce the number of parts, have a simple structure, and efficiently increase the total amount of atomization. can be increased.
  • the ultrasonic vibrator 2 ultrasonically vibrates the solution 1 upward from the bottom to project the liquid column 6 from the liquid surface 5 and separate the mist from the surface of the liquid column 6 .
  • a carrier gas is blown onto the surface of the liquid column 6 from an air duct 7 in order to efficiently separate the mist and generate nano-mist.
  • the liquid columns 6 are arranged along the fan duct 7 such that each liquid column 6 is blown with the carrier gas from the fan duct 7 .
  • the ultrasonic atomization device 100 of FIG. 1 arranges the fan duct 7 in a posture extending in a straight line so that a plurality of liquid columns 6 generated by the plurality of ultrasonic vibrators 2 are arranged in a straight line parallel to the fan duct 7 . arrayed.
  • liquid column 6 is generated above the ultrasonic transducer 2
  • a plurality of ultrasonic transducers 2 are arranged on a straight line parallel to the air duct 7, and the liquid column 6 and the air duct 7 are arranged on the straight line. can be arranged in parallel.
  • a predetermined gap for example, a 3 mm to 3 cm air gap 11 is provided so that the carrier gas can be uniformly blown onto the surface of the liquid column 6. be done.
  • an arrangement line of the ultrasonic transducers 2 arranged on a line and a side line of the blowing duct 7 on the line. are parallel to each other and the spacing between them is equal to the spacing of the blowing gap 11 .
  • the spacing between the array line of the ultrasonic transducers 2 and the side line of the fan duct 7 can be made non-parallel by making them different between the upstream side and the downstream side when viewed from the fan side. (Blower duct 7)
  • the air duct 7 is arranged inside the atomization chamber 4 along the arrangement direction of the plurality of liquid columns 6 generated by the ultrasonic vibration of the ultrasonic oscillator 2 .
  • the air duct 7 is a hollow cylindrical body, and the carrier gas is forcibly blown from the air blower 9 .
  • the blower duct 7 has an ejection opening 8 in a wall 7 a facing the liquid column 6 .
  • the carrier gas is blown from the blower 9 to the blower duct 7 , and the carrier gas is blown onto the liquid column 6 from the ejection opening 8 opened in the blower duct 7 .
  • the ejection opening 8 is provided in the wall surface of the air duct 7 including the facing wall 7 a , ie the surface facing the liquid column 6 .
  • the ultrasonic atomization device 100 of FIG. 1 has ejection openings 8 in opposing walls 7 a on both sides of the air duct 7 .
  • ultrasonic atomizers 300, 400, 500, and 700 shown in FIGS. 6 to 8 and 11, which will be described later, have an ejection opening 8 in the opposing wall 7a on one side of the air duct 7, and the ultrasonic wave shown in FIG.
  • the atomization device 600 has ejection openings 8 on both sides of the fan duct 7 and on one side of the opposing wall 7a.
  • the blower duct 7 has the opposing wall 7 a in a substantially vertical posture, and the ejection opening 8 is provided at a position facing the liquid column 6 .
  • the ejection opening 8 blows the carrier gas onto the surface of the liquid column 6 which is vertically protruded by ultrasonic vibration, thereby improving the atomization efficiency.
  • a fan duct 7 is arranged between two rows of liquid columns 6, and the carrier gas is ejected from the ejection openings 8 provided in the opposing walls 7a on both sides of the fan duct 7. 6 is sprayed horizontally to the left and right.
  • the carrier gas is blown to the liquid column 6 on the right side from the ejection opening 8 of the opposing wall 7a on the right side of the fan duct 7, and the carrier gas is blown from the ejection opening 8 on the opposing wall 7a on the left side of the fan duct 7 to the left side.
  • a carrier gas is sprayed onto the liquid column 6 of .
  • the blower duct 7 can also tilt the opposing wall 7a provided with the ejection opening 8 with respect to the vertical direction with respect to the bottom surface of the atomization chamber 4 .
  • the blower duct 7 has a wall 7a facing the liquid column 6, which opens the ejection opening 8, by inclining in a direction along the liquid column 6 protruding in a conical shape. By tilting in a direction parallel to the surface, the blowing gap 11 between the ejection opening 8 and the liquid column 6 can be equalized.
  • the opposing wall 7a of the air duct 7 can be formed in a shape corresponding to a predetermined air blow gap according to the air blow amount and position, and the height and position at which the carrier gas is blown onto the liquid column 6. .
  • the air duct 7 shown in the horizontal cross-sectional view of FIG. A ventilation gap 11 is provided. Since the ultrasonic transducers 2 are preferably arranged linearly as shown in FIG.
  • the air duct 7 is arranged in a posture extending linearly.
  • the blower duct 7 is a hollow cylinder with a vertical width sufficient to open ejection openings 8 capable of blowing the carrier gas from the lower end to the upper end of the liquid column 6, and a horizontal width capable of efficiently atomizing the liquid column 6 by blowing air from each ejection opening 8 to the liquid column 6.
  • the cross-sectional shape of the air duct 7 is preferably rectangular as shown in FIG. 3, but the cross-sectional shape may be polygonal such as trapezoidal or triangular, or may be elliptical or otherwise without corners. can.
  • the shape of the cross section of the air duct 7 can be made into a trapezoidal shape with a downward slope, and the air blow gap 11 between the liquid column 6 and the liquid column 6 can be equalized in the vertical direction.
  • the air duct 7 has a cylindrical shape with the same cross-sectional area.
  • the carrier gas is forcibly blown from the blower 9 to the blower duct 7, and the carrier gas is blown to the liquid column 6 from the ejection opening 8 of the blower duct 7.
  • the cross-sectional area of the blower duct 7 on the downstream side farther from the blower 9 can be reduced in order to accommodate the different pressures at which the carrier gas is blown onto the liquid column 6 from the ejection openings 8 by the blower 9 . (Ejection opening 8)
  • the carrier gas is forcibly blown from the blower 9 to the blower duct 7 and sprayed onto the liquid column 6 from the ejection openings 8 provided in the blower duct 7 .
  • the ejection opening 8 shown in the figure is arranged at a position for blowing the carrier gas toward the liquid column 6 generated by the ultrasonic vibration. This is because the carrier gas can be blown to the liquid column 6 to increase the atomization efficiency.
  • the ejection opening 8 may open at a position where the carrier gas is blown between adjacent liquid columns 6 .
  • the ejection openings 8 are arranged at positions where the carrier gas is blown between the adjacent liquid columns 6, thereby blowing the carrier gas to both of the adjacent liquid columns 6. It is possible to increase the atomization efficiency. Also, it is possible to provide both the ejection openings 8 arranged at positions where the carrier gas is blown toward the liquid columns 6 and the ejection openings 8 arranged at positions where the carrier gas is blown between the adjacent liquid columns 6 . Furthermore, the shape, size, number, etc. of the ejection openings 8 arranged at positions where the carrier gas is blown toward the liquid columns 6 and the ejection openings 8 arranged at positions where the carrier gas is blown between the adjacent liquid columns 6. The atomization efficiency can also be increased by making the openings different from each other.
  • Figures 12 and 13 show examples of the shape and arrangement of the ejection openings 8.
  • the ejection opening 8 can be a slit 8a extending in the vertical direction of the liquid column 6.
  • the ejection opening 8 can blow the carrier gas toward the entire liquid column 6 from the top to the bottom without partially blowing the carrier gas onto the liquid column 6, thereby improving the atomization efficiency. can be raised.
  • the slits 8a of the ejection opening 8 can be finely adjusted such as the size, shape, number, width, length and arrangement of the slits 8a. For example, FIG.
  • FIG. 12A shows an example in which the carrier gas is blown from the front toward the liquid column 6 from one slit 8a extending in the vertical direction of the liquid column 6.
  • FIG. 12B shows an example in which the carrier gas is sprayed onto the liquid column 6 from two slits 8a along the outline of the liquid column 6 in an inverted V shape.
  • another ejection opening 8 may be provided above the two slits 8a in a V-shape, or the two slits 8a may be opened so that the upper portions of the two slits 8a are connected to each other.
  • the size, shape, number, and width of the slits 8a are adjusted according to the shape of the liquid column 6, the surface condition of the liquid column 6, etc., and depending on the pressure at which the carrier gas is blown on the upstream side and downstream side of the fan duct 7.
  • the size, number, arrangement, etc. of the ejection openings 8 can also be changed by , placement, and the like.
  • the direction in which the carrier gas is blown from the jetting openings 8 is not limited to the horizontal direction with respect to the liquid column 6, but can also be in other directions.
  • the ejection opening 8 can blow the carrier gas in the horizontal direction, and it is also possible to devise the shape of the ejection opening 8 to blow the carrier gas obliquely upward or obliquely downward. It is also possible to blow the carrier gas in different directions at the openings 8 .
  • the length of the slit 8a of the ejection opening 8 is, for example, preferably 0.5 to 1.5 times the height of the liquid column 6, more preferably 0.7 to 1.5 times the height of the liquid column 6. 3 times.
  • the blowing air volume of the carrier gas with good atomization efficiency differs, and the optimum length of the slit 8a of the ejection opening 8 also differs.
  • the carrier gas can be blown not only to a part of the liquid column 6, for example, the upper end, but also to the entire liquid column 6, resulting in optimum atomization. Efficiency can be achieved.
  • the blower duct 7 can be provided with ejection openings 8 with different opening areas. For example, different opening areas can be provided above and below the liquid column 6 .
  • the ejection openings 8 may have different shapes, sizes, arrangements, etc. can be adjusted to By adjusting the size, width, length, number, and arrangement of the slits 8a of the ejection openings 8, the ejection openings 8 can have different opening areas. Also, the size, number, width and shape of the slits 8a can be changed according to the height of the liquid column 6. FIG. By arranging the lowest part of the slit 8 a of the ejection opening 8 above the liquid surface 5 , it is possible to prevent the solution 1 from entering the fan duct 7 .
  • the ejection opening 8 can also have a plurality of through holes 8b arranged vertically.
  • a plurality of through-holes 8b vertically, it is possible to spray the carrier gas toward the entire liquid column 6, as in the case of providing slits 8a extending in the vertical direction of the liquid column 6, thereby further atomizing the liquid column. Efficiency can be improved.
  • the ejection openings 8 of the through holes 8b can be adjusted more finely than the slits 8a, depending on the size, number, shape, and arrangement of the through holes 8b.
  • the through hole 8b is not limited to a circular hole, and may be an elliptical shape or a slit shape extending in the vertical or horizontal direction.
  • Both the through holes 8b and the slits 8a can be provided, or a combination thereof can be provided.
  • the carrier gas is blown from the front toward the liquid column 6 from a plurality of through holes 8b arranged in a row in the vertical direction of the liquid column 6, and in FIG. A carrier gas is blown onto the liquid column 6 from a plurality of through-holes 8b arranged in an inverted V shape, and FIG. An example of blowing a carrier gas to .
  • the air duct 7 can have ejection openings 8 with different opening areas. Furthermore, by arranging the lowermost portions of the plurality of through holes 8 b of the ejection opening 8 above the liquid surface 5 , it is possible to prevent the solution 1 from entering the fan duct 7 . (Blower 9)
  • the blower 9 shown in FIG. 1 forcibly blows the carrier gas into the blower duct 7, blows the carrier gas onto the surface of the liquid column 6 from the ejection opening 8 of the blower duct 7, and efficiently produces nano-mist from the surface of the liquid column 6. generate
  • a platform blower 9 can also be provided for each air duct 7 .
  • the air volume and pressure at which the air blower 9 forcibly blows the carrier gas are set so that the carrier gas can be forcibly blown to the liquid column 6 generated by each ultrasonic transducer 2 to generate nano-mist most efficiently.
  • the blower 9 can also heat or cool the carrier gas before blowing.
  • the ultrasonic atomization device in which the air blower 9 heats the carrier gas and blows it to each liquid column 6 can increase the mist atomization efficiency.
  • An ultrasonic atomizer that cools a carrier gas and forcibly blows it to each liquid column 6 is suitable for atomizing a liquid that is heated and deteriorated.
  • FIG. 4 and 5 show an ultrasonic atomization device 200 according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic configuration diagram of an ultrasonic atomization device 200 according to Embodiment 2 of the present invention
  • FIG. 5 is a vertical cross section of the ultrasonic atomization device 200 shown in FIG. Figures are shown respectively.
  • the blower duct 7 is provided with a split plate 10 .
  • the dividing plate 10 is arranged vertically in the air duct 7 to divide the air duct 7 into a plurality of rows of divided ducts 7b.
  • the dividing plate 10 divides and supplies the carrier gas supplied from the blower 9 to the blowing duct 7 to the dividing duct 7b, and divides and blows it to each of the ejection openings 8 .
  • Other embodiments described below may also include a split plate 10 . (Divided duct 7b, divided plate 10)
  • the air duct 7 shown in FIG. 4 has a dividing plate 10 arranged therein for blowing the carrier gas equally to each liquid column 6, and the dividing plate 10 divides the air duct 7 into a plurality of rows of divided ducts 7b. split.
  • the divided plate 10 shown in the figure has substantially the same cross-sectional area of the divided ducts 7b, and evenly distributes the carrier gas to the surface of each liquid column 6.
  • the divided ducts 7b can have different cross-sectional areas, for example corresponding to the distance from the blower side to the ejection opening.
  • the dividing plate 10 consists of a flat portion 10a extending in the longitudinal direction of the blowing plate for guiding the carrier gas, and a bent portion 10b connected to the tip of the flat portion 10a. As shown in FIGS. 4 and 5, each of the dividing plates 10 is arranged in parallel at regular intervals with the flat portion 10a in a vertical posture, thereby dividing the air duct 7 into a plurality of rows of divided ducts 7b. .
  • the bent portion 10b is bent from the flat portion 10a toward the facing wall 7a in order to connect the discharge side of the divided duct 7b to the ejection opening 8, and connects the tip edge thereof to the facing wall 7a.
  • the bent portion 10b connects the tip edge between the ejection openings 8 to the opposing wall 7a so that each split duct 7b is connected to the ejection openings 8. As shown in FIG.
  • Each split duct 7b is connected to the blower 9 on the inflow side and to the ejection opening 8 on the discharge side.
  • one ejection opening 8 is connected to one divided duct 7b.
  • This structure has the advantage that the carrier gas can be uniformly blown to each ejection opening 8 .
  • multiple rows of divided ducts 7b can connect a plurality of ejection openings 8 to one divided duct 7b.
  • FIG. 6 is a schematic configuration diagram of an ultrasonic atomization device 300 according to Embodiment 3
  • FIG. 7 is a schematic configuration diagram of an ultrasonic atomization device 400 according to Embodiment 4
  • FIG. 9 is a schematic configuration diagram of an ultrasonic atomization device 500 according to Embodiment 6
  • FIG. 10 is an enlarged cross-sectional view of a main part of FIG. 9, and FIG. Schematic configuration diagrams of the ultrasonic atomization device 700 are respectively shown.
  • the ultrasonic atomization devices 100 and 200 shown in FIGS. 1 and 4 each have a plurality of ultrasonic transducers 2 arranged on both sides of one fan duct 7 .
  • the ultrasonic atomization devices 300, 400, 500, 600, and 700 shown in FIGS. A blower duct 7 is arranged on one side or both sides of the vibrator 2, and an ejection opening 8 is provided in the facing wall 7a on one side or both sides of the blower duct 7 to blow the carrier gas.
  • the combinations of the number and arrangement of the air duct 7 and the plurality of ultrasonic transducers 2 shown in the above figures are examples, and are not limited to these.
  • An ultrasonic atomization device 300 according to Embodiment 3 shown in FIG. It is arranged on one side (the right side in FIG. 6), and the carrier gas is blown to one side of the liquid column 6 from the opposing wall 7a on one side of the fan duct 7. As shown in FIG. The ultrasonic atomization device 300 blows a carrier gas from the ejection openings 8 provided in the facing wall 7a on one side of the air duct 7 arranged on one side of the liquid column 6 in one row.
  • This ultrasonic atomization device 300 has a simple structure, can reduce the cost, and can reduce the width and size of the entire device.
  • split plate 10 inside and a plurality of rows of split ducts 7b for blowing the carrier gas to the ejection openings 8 of the facing wall 7a on one side.
  • a simple structure without the dividing plate 10 can be used to further reduce the material and manufacturing costs. The same applies to the following embodiments.
  • the ultrasonic atomization device 400 according to Embodiment 4 shown in FIG. One side of 6 is blown with a carrier gas.
  • air ducts 7 are provided along both sides of the atomization chamber 4 to blow a carrier gas to two lines of liquid columns 6 generated between the two sides.
  • the air ducts 7 on both sides are provided with ejection openings 8 in the facing walls 7a on one side (inner side in the figure) to blow the carrier gas to the liquid column 6 .
  • Each air duct 7 is divided by a dividing plate 10 into a plurality of rows of divided ducts 7b.
  • Each split duct 7b is connected to an ejection opening 8 to equalize the carrier gas of the blower 9 and blow it from the ejection opening 8 to the liquid column 6.
  • the ultrasonic atomization device 400 has a structure in which a carrier gas is blown from the air ducts 7 on both sides to the inner two rows of liquid columns 6 .
  • An ultrasonic atomization device 500 according to Embodiment 5 shown in FIG. ), the carrier gas is blown from the ejection opening 8 of the opposing wall 7a.
  • the carrier gas is blown from each of the blower ducts 7 to the two rows of liquid columns 6.
  • a fan duct 7 is provided parallel to and adjacent to each line of liquid columns 6 arranged in a straight line, and a carrier gas is blown to the liquid column 6 from each fan duct 7 .
  • the fan duct 7 has a split plate 10 arranged inside and a plurality of rows of split ducts 7b inside.
  • Each of the divided ducts 7b uniformly blows the carrier gas to the ejection openings 8 provided in the opposing wall 7a on one side, and uniformly blows the carrier gas to the liquid column 6 to improve the atomization efficiency.
  • An ultrasonic atomizer 600 according to Embodiment 6 shown in FIG. 9 has a plurality of ultrasonic transducers 2 arranged in three rows between two rows of fan ducts 7 and on both outer sides.
  • two rows of air ducts 7 are arranged in parallel, one row of a plurality of ultrasonic transducers 2 is arranged between the two rows of air ducts 7, and two more rows of ultrasonic transducers 2 are arranged.
  • a plurality of ultrasonic transducers 2 are arranged in rows on both sides of the air duct 7, respectively. Since this ultrasonic atomization device 600 has three rows of ultrasonic transducers 2, three rows of liquid columns 6 are generated.
  • the carrier gas is blown from the ejection openings 8 of the blower ducts 7 on both sides to the central liquid column 6a of the three liquid columns 6.
  • a carrier gas is blown from the ejection opening 8 of the fan duct 7 on one side to each of the liquid columns 6b on both sides.
  • the carrier gas is blown from both sides toward the central liquid column 6a from the ejection openings 8 provided in the air ducts 7 on both sides of the central liquid column 6a.
  • the two rows of air ducts 7 are each provided with ejection openings 8 in opposing walls 7a on both sides, and each ejection opening 8 is connected to each split duct 7b.
  • the central liquid column 6a to which the carrier gas is blown from both sides, is supplied with equalized carrier gas from both sides, so that the carrier gas is uniformly blown over a wide area of the surface, and the nano-mist is produced with higher atomization efficiency. can occur.
  • the air duct 7 is arranged inside the liquid column generated in a ring shape by the plurality of ultrasonic transducers 2 .
  • the fan duct 7 has a vertically extending tubular shape, and is provided with ejection openings 8 in a ring-shaped, curved facing wall 7a around it, from which the carrier gas is radially ejected.
  • a liquid column 6 generated by ultrasonic vibration is arranged at a position where the carrier gas is blown out.
  • this structure is suitable for an ultrasonic atomizer having a cylindrical outer shape.
  • this structure is not limited to those having a cylindrical outer shape.
  • the outer shape may be polygonal such as elliptical, octagonal, or hexagonal, as well as rectangular such as square or rectangular.
  • the fan duct 7 has a cylindrical shape extending in the vertical direction.
  • the distances can be made substantially the same, and the carrier gas can be uniformly ejected from each of the ejection openings 8 provided in the blower duct 7. As shown in FIG. Although not shown, it is also possible to dispose the dividing plate 10 inside the fan duct 7 and provide a plurality of rows of dividing ducts 7b therein.
  • the present invention is equipped with a plurality of ultrasonic transducers, increases the atomization efficiency of each ultrasonic transducer to increase the total amount of atomization, and has a simple structure to reduce manufacturing costs and improve efficiency. It can be suitably used for ultrasonic atomization devices that can be mass-produced.

Landscapes

  • Special Spraying Apparatus (AREA)
PCT/JP2022/044447 2021-12-17 2022-12-01 超音波霧化装置 WO2023112707A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2023567685A JPWO2023112707A1 (enrdf_load_stackoverflow) 2021-12-17 2022-12-01

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021-205487 2021-12-17
JP2021205487 2021-12-17

Publications (1)

Publication Number Publication Date
WO2023112707A1 true WO2023112707A1 (ja) 2023-06-22

Family

ID=86774270

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/044447 WO2023112707A1 (ja) 2021-12-17 2022-12-01 超音波霧化装置

Country Status (3)

Country Link
JP (1) JPWO2023112707A1 (enrdf_load_stackoverflow)
TW (1) TW202335748A (enrdf_load_stackoverflow)
WO (1) WO2023112707A1 (enrdf_load_stackoverflow)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005066554A (ja) * 2003-08-27 2005-03-17 Choonpa Jozosho Kk 溶液の超音波分離方法とこの方法に使用される超音波分離装置
JP2007324359A (ja) * 2006-05-31 2007-12-13 Choonpa Jozosho Kk 洗浄方法と洗浄装置
JP2008049220A (ja) * 2006-08-22 2008-03-06 National Institute Of Advanced Industrial & Technology 粒子の分離方法と分離装置
WO2019168028A1 (ja) * 2018-02-27 2019-09-06 シャープ株式会社 霧化装置および調湿装置
WO2019202940A1 (ja) * 2018-04-20 2019-10-24 シャープ株式会社 超音波霧化分離装置および調湿装置
JP2020196930A (ja) * 2019-06-03 2020-12-10 トヨタ自動車株式会社 ミスト生成装置、成膜装置、及び成膜装置を用いた成膜方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005066554A (ja) * 2003-08-27 2005-03-17 Choonpa Jozosho Kk 溶液の超音波分離方法とこの方法に使用される超音波分離装置
JP2007324359A (ja) * 2006-05-31 2007-12-13 Choonpa Jozosho Kk 洗浄方法と洗浄装置
JP2008049220A (ja) * 2006-08-22 2008-03-06 National Institute Of Advanced Industrial & Technology 粒子の分離方法と分離装置
WO2019168028A1 (ja) * 2018-02-27 2019-09-06 シャープ株式会社 霧化装置および調湿装置
WO2019202940A1 (ja) * 2018-04-20 2019-10-24 シャープ株式会社 超音波霧化分離装置および調湿装置
JP2020196930A (ja) * 2019-06-03 2020-12-10 トヨタ自動車株式会社 ミスト生成装置、成膜装置、及び成膜装置を用いた成膜方法

Also Published As

Publication number Publication date
TW202335748A (zh) 2023-09-16
JPWO2023112707A1 (enrdf_load_stackoverflow) 2023-06-22

Similar Documents

Publication Publication Date Title
US6883724B2 (en) Method and device for production, extraction and delivery of mist with ultrafine droplets
CN100346883C (zh) 带有倾斜孔板的喷雾器及用于其的可更换贮存器
US10456802B2 (en) Atomizing apparatus
KR0183025B1 (ko) 입자를 연속제조하는 초음파 장치
EP0674541B1 (en) Production of particulate materials
JP5084007B2 (ja) 粒子の分離方法と分離装置
JP2005502463A5 (enrdf_load_stackoverflow)
JP5470514B2 (ja) 超音波霧化方法と霧化装置
KR20010110298A (ko) 반응 물질 급송 장치
WO2002087772A1 (en) Cymbal-shaped actuator for a nebulizing element
ES2657041T3 (es) Aparato de recubrimiento de lecho fluidizado
JP6936195B2 (ja) 気体輸送装置
WO2023112707A1 (ja) 超音波霧化装置
EP0478118A1 (en) Apparatus for producing frozen particles
WO2022196487A1 (ja) 霧化装置
AU637810B2 (en) A device for producing a particulate dispersion
JP3789845B2 (ja) 表面過剰液体を分離する分離装置
CN107051805A (zh) 一种多激励振动的液滴发生器装置
JP2012143684A (ja) 超音波霧化装置
JPH0725250Y2 (ja) 霧化装置
WO2016019479A1 (es) Atomizador ultrasonico
JPS61153172A (ja) 液体噴射装置
WO2024047722A1 (ja) 液体霧化装置及びそれを用いた分析装置
DRESSLER Two-dimensional, high flow, precisely controlled monodisperse drop source(Final Report, 8 Nov. 1989- 8 Mar. 1993)
JP2006231298A (ja) 超音波霧化分溜装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22907235

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2023567685

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22907235

Country of ref document: EP

Kind code of ref document: A1