WO2020241150A1 - 超音波霧化装置および調湿装置 - Google Patents

超音波霧化装置および調湿装置 Download PDF

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Publication number
WO2020241150A1
WO2020241150A1 PCT/JP2020/017961 JP2020017961W WO2020241150A1 WO 2020241150 A1 WO2020241150 A1 WO 2020241150A1 JP 2020017961 W JP2020017961 W JP 2020017961W WO 2020241150 A1 WO2020241150 A1 WO 2020241150A1
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WIPO (PCT)
Prior art keywords
liquid
ultrasonic
tubular member
atomization
nozzle
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Ceased
Application number
PCT/JP2020/017961
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English (en)
French (fr)
Japanese (ja)
Inventor
奨 越智
井出　哲也
豪 鎌田
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Sharp Corp
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Sharp Corp
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Priority to JP2021522725A priority Critical patent/JP7169443B2/ja
Publication of WO2020241150A1 publication Critical patent/WO2020241150A1/ja
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • 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
    • B05B17/0607—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 generated by electrical means, e.g. piezoelectric transducers
    • B05B17/0615—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 generated by electrical means, e.g. piezoelectric transducers spray being produced at the free surface of the liquid or other fluent material in a container and subjected to the vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present invention relates to an ultrasonic atomizer and a humidity control device.
  • the present application claims priority based on Japanese Patent Application No. 2019-098208 filed in Japan on May 27, 2019, the contents of which are incorporated herein by reference.
  • Patent Document 1 discloses an ultrasonic atomizer equipped with a perforated plate in which a large number of minute through holes are formed in a container.
  • the perforated plate is arranged at a position where the upper surface of the perforated plate does not come into contact with the liquid and the lower surface of the perforated plate comes into contact with the liquid column raised from the liquid surface.
  • One aspect of the present invention is to solve the above-mentioned problems, and to provide an ultrasonic atomizer capable of efficiently atomizing and easily adjusting the amount of atomization. Is one of the purposes.
  • Another aspect of the present invention is to provide a humidity control device provided with the above atomization device.
  • the ultrasonic atomizer includes a housing having an internal space and an exhaust port for storing a liquid substance to be atomized droplets, and the housing.
  • An ultrasonic vibrator that is provided and generates the atomized droplets by irradiating the liquid material with ultrasonic waves, and at least a part of the atomized droplets from the internal space to the outside through the exhaust port.
  • the nozzle includes an airflow generating unit that generates an airflow for sending out, and a nozzle that focuses the ultrasonic waves radiated from the ultrasonic vibrator toward a specific region of the liquid surface of the liquid substance.
  • a tubular member having an injection port for the liquid material at the upper end, and a region of the internal space of the tubular member including the center of gravity of the outer shape of the injection port when viewed from the normal direction of the injection port. It has at least a network structure provided above and forming a liquid column of the liquid material above.
  • the network structure may have a plurality of laminated networks.
  • the net-like structure may have a plurality of nets provided at intervals in the height direction of the tubular member.
  • the tubular member may have a swirling flow generating member that generates a swirling flow of the liquid material introduced inside the tubular member. ..
  • the tubular member may have a throttle portion in which the cross-sectional area of the flow path of the liquid material flowing inside the tubular member is narrowed. ..
  • a plurality of the ejection ports are provided, and the network structure is provided in a region including at least the center of gravity of each of the plurality of ejection ports. May be good.
  • the pore diameter of the network structure may be 10 ⁇ m or more and 1 mm or less.
  • the thickness of the network structure may be 5 mm or less.
  • the humidity control device includes a hygroscopic portion that allows the liquid hygroscopic material to absorb at least a part of the moisture contained in the air by bringing the liquid hygroscopic material containing a hygroscopic substance into contact with air.
  • the atomization regeneration unit includes an atomization regeneration unit that regenerates the liquid moisture absorption material by atomizing and removing at least a part of the water contained in the liquid moisture absorption material supplied from the moisture absorption unit. , Consists of an ultrasonic atomizer according to one aspect of the present invention.
  • the ultrasonic atomizing device According to the ultrasonic atomizing device according to one aspect of the present invention, atomization can be efficiently performed and the amount of atomization can be easily adjusted. Further, according to one aspect of the present invention, it is possible to provide a humidity control device including the above atomization device.
  • FIG. 1 is a cross-sectional view showing an ultrasonic atomizer of the first embodiment.
  • the scale of the dimension may be different depending on the component.
  • the ultrasonic atomizing device 10 includes a housing 11, an ultrasonic vibrator 12, an air flow generating unit 13, and a nozzle 14.
  • the housing 11 has an internal space 11a for storing a liquid material W to be a mist-like droplet W1, an air supply port 11b, and an exhaust port 11c.
  • the housing 11 is a container made of a material such as metal or resin, and the constituent material is not particularly limited.
  • An air supply pipe 15 is connected to the air supply port 11b, and an exhaust pipe 16 is connected to the exhaust port 11c.
  • the liquid material W has a viscosity of, for example, 1 ⁇ 10 -3 Pa ⁇ s or more.
  • Specific examples of the liquid substance W include glycerin, ethylene glycol, sodium polyacrylate aqueous solution, polyethylene glycol, triethylene glycol, calcium chloride aqueous solution, lithium chloride aqueous solution, or a mixture thereof.
  • the ultrasonic vibrator 12 is provided in the housing 11 and generates atomized droplets W1 from the liquid material W by irradiating the liquid material W with ultrasonic waves.
  • the ultrasonic vibrator 12 is provided on the bottom plate 11e of the housing 11.
  • the ultrasonic vibrator 12 is provided so as to be inclined with respect to the bottom plate 11e of the housing 11.
  • one ultrasonic oscillator 12 is used, but a plurality of ultrasonic oscillators 12 may be used.
  • the airflow generating unit 13 generates an airflow F for sending at least a part of the mist-like droplet W1 from the internal space 11a to the outside through the exhaust port 11c of the housing 11.
  • the airflow generating unit 13 is composed of a blower provided on the air supply pipe 15.
  • the airflow generating unit 13 is not limited to the air supply pipe 15, and may be composed of blowers provided in the exhaust pipe 16.
  • the nozzle 14 focuses the ultrasonic waves radiated from the ultrasonic vibrator 12 toward a specific region on the liquid surface of the liquid material W. Even if there is no nozzle 14, ultrasonic waves can be applied to a specific location on the liquid surface of the liquid material W by adjusting the ultrasonic wave irradiation conditions when irradiating the liquid material W with ultrasonic waves from the ultrasonic vibrator 12. You can concentrate. However, by using the nozzle 14, ultrasonic waves can be efficiently concentrated at a specific location on the liquid surface of the liquid material W. As a result, a liquid column W2 in which the liquid material W is highly raised can be generated above the nozzle 14. The mist-like droplet W1 is generated from every part of the liquid surface, but is particularly abundantly generated from the liquid column W2 and its vicinity.
  • the nozzle 14 has a tubular member 18 and a net-like structure 19.
  • the tubular member 18 has an upper portion and a lower portion open, and has an injection port 18b for the liquid substance W at the upper end. Further, the tubular member 18 has a tapered truncated cone shape in which the internal space is narrowed from the lower side to the upper side, that is, from the side closer to the ultrasonic vibrator 12 to the side farther away.
  • the tubular member 18 is made of a metal material such as aluminum, copper, or stainless steel. However, the constituent material of the tubular member 18 is not particularly limited.
  • the tubular member 18 is arranged such that the central axis 18c of the tubular member 18 intersects the liquid surface.
  • the shape of the tubular member 18 does not necessarily have to be a truncated cone, and may be, for example, a truncated cone.
  • the tubular member 18 is arranged so that the central axis 18c is tilted from the direction perpendicular to the liquid surface.
  • the radiation axis J of the ultrasonic vibrator 12 is also tilted from the direction perpendicular to the liquid surface.
  • the radiation axis J of the ultrasonic vibrator 12 is defined as a virtual axis that passes through the center of the ultrasonic radiation surface 12a of the ultrasonic vibrator 12 and extends parallel to the normal direction of the ultrasonic radiation surface 12a.
  • the central axis 18c of the tubular member 18 coincides with the radiation axis J of the ultrasonic vibrator 12.
  • the central axis 18c of the tubular member 18 does not necessarily have to coincide with the radiation axis J of the ultrasonic vibrator 12. In some cases, it may be desirable that the central axis 18c of the tubular member 18 is arranged at a position deviated from the radiation axis J of the ultrasonic vibrator 12.
  • the liquid column W2 is formed to be tilted from the direction perpendicular to the liquid surface.
  • the ultrasonic waves reflected by the liquid surface are less likely to return to the ultrasonic oscillator 12, and the ultrasonic oscillator 12 itself is less likely to be damaged by the ultrasonic waves.
  • the liquid column W2 is less likely to be disturbed, and the liquid column W2 is stably formed.
  • the network structure 19 is the center of gravity of the outer shape of the injection port 18b when viewed from the normal direction of the injection port 18b in the internal space of the tubular member 18, that is, the outer shape of the injection port 18b in the present embodiment. It is provided at least in the region including the center point of a certain circle, and forms a liquid column W2 of the liquid material W above. As shown in FIGS. 2A to 2D, the region including the center of gravity point is a circular region R centered on the center of gravity point G. The diameter of the region R is, for example, 1 mm.
  • the network structure 19 is made of, for example, a resin material such as polyester, polyethylene, polypropylene, polytetrafluoroethylene, nylon, fluorine fiber, polyurethane, and a metal material such as stainless steel and aluminum, but the constituent material is not particularly limited.
  • the reticulated structure 19 has a mesh having a pore diameter in a predetermined range.
  • the network structure 19 preferably has substantially uniform pore diameters, but may have a predetermined distribution in pore diameters.
  • the thickness of the liquid column W2 can be adjusted by adjusting the pore diameter of the network structure 19, and atomization is performed as compared with the case where the network structure 19 is not used.
  • the amount can be increased or decreased. This effect will be described in detail later.
  • the form in which the net-like structure 19 is provided at least in the region including the center of gravity point G of the circle, which is the outer shape of the injection port 18b, in the internal space of the tubular member 18, is described below.
  • the form shown is conceivable.
  • the region R including the center-of-gravity point G is indicated by a two-dot chain line circle.
  • the center of gravity point G coincides with the center point of the circle.
  • the net-like structure may be provided in the region including the center of gravity point G.
  • FIG. 2A is a diagram showing a first example of a planar installation form of the network structure 19. As shown in FIG. 2A, the network structure 19A of the first example is provided so as to block the entire internal space of the tubular member 18.
  • FIG. 2B is a diagram showing a second example of a two-dimensional installation form of the network structure 19. As shown in FIG. 2B, the reticulated structure 19B of the second example is provided in a linear region extending in the diameter direction including the region R in the internal space of the tubular member 18.
  • FIG. 2C is a diagram showing a third example of a planar installation form of the network structure 19.
  • the network structure 19C of the third example is provided in two linear regions including the region R and orthogonal to each other in the internal space of the tubular member 18.
  • FIG. 2D is a diagram showing a fourth example of a planar installation form of the network structure 19.
  • the reticulated structure 19D of the fourth example is provided in a rectangular region including the region R in the internal space of the tubular member 18.
  • the network structure 19D is supported by the tubular member 18 by an arbitrary support member 21.
  • the thickness t of the reticulated structure 19 is preferably 5 mm or less. If the thickness t of the reticulated structure 19 exceeds 5 mm, the liquid column W2 is less likely to be formed.
  • the net-like structure 19 may be composed of a plurality of nets laminated so as to be in contact with each other.
  • Each of the plurality of nets may be a net having the same pore diameter or a net having different pore diameters. Further, each of the plurality of nets may be a net made of different materials.
  • the plurality of nets may be overlapped with each other without shifting the upper and lower wires constituting the net, or may be overlapped with the upper and lower wires being displaced from each other.
  • the hole diameter of the network structure 19 is the average value of the plurality of hole diameters when the network structure 19 is viewed from the direction along the central axis 18c of the tubular member 18. Just define it. Therefore, the hole diameter of the net-like structure 19 can be made smaller than the hole diameter of one net by laminating a plurality of nets and stacking the upper and lower wire rods in a state of being intentionally displaced from each other.
  • FIG. 3A is a diagram showing a first example of a cross-sectional installation form of the network structure 19.
  • the net-like structure 19E of the first example is provided at a position lower than the upper end of the tubular member 18.
  • the height of the liquid level inside the tubular member 18 is substantially equal to the height of the liquid level around the tubular member 18.
  • the height of the lower surface of the net-like structure 19E is substantially equal to the height of the liquid level around the tubular member 18.
  • the height of the upper surface of the reticulated structure 19E is about 0.5 to 3 cm higher than the height of the liquid level around the tubular member 18.
  • FIG. 3B is a diagram showing a second example of a cross-sectional installation form of the network structure 19.
  • the net-like structure 19F of the second example is provided at the upper end of the tubular member 18.
  • the height of the liquid level inside the tubular member 18 is higher than the height of the liquid level around the tubular member 18.
  • the height of the lower surface of the net-like structure 19F is about 0.5 to 3 cm higher than the height of the liquid level around the tubular member 18.
  • FIG. 3C is a diagram showing a third example of a cross-sectional installation form of the network structure 19.
  • the net-like structure 19G of the third example is provided at the upper end of the tubular member 18.
  • the height of the liquid level inside the tubular member 18 is higher than the height of the liquid level around the tubular member 18.
  • the liquid column W2 was formed from the upper surface of the network structure 19F
  • the liquid column W2 was formed from below the network structure 19G. It is formed and extends above the reticulated structure 19G.
  • FIG. 4A is a diagram showing a first example of the support structure of the network structure 19.
  • the reticulated structure 19H of the first example is fixed to the tubular member 18 via the adhesive 23.
  • the net-like structure 19H may be fixed to the tubular member 18 via an adhesive tape or the like.
  • FIG. 4B is a diagram showing a second example of the support structure of the network structure 19.
  • a protrusion 24 projecting inward is provided on the inner wall surface of the tubular member 18.
  • the net-like structure 19I is placed on the upper surface of the protrusion 24 and fixed by an adhesive, an adhesive tape or the like (not shown).
  • the portion on which the net-like structure 19I is placed is not limited to the protrusion 24, and may be a stepped portion or the like.
  • FIG. 4C is a diagram showing a third example of the support structure of the network structure 19.
  • the tubular member 18 is divided into two, and the upper tubular member 18A and the lower tubular member 18B are fitted to each other.
  • the net-like structure 19J is sandwiched and fixed between the upper tubular member 18A and the lower tubular member 18B. It is desirable that the network structure 19J has a thickness and flexibility sufficient to be sandwiched between the two tubular members 18A and 18B.
  • FIG. 4D is a diagram showing a fourth example of the support structure of the network structure 19. As shown in FIG. 4D, in the support structure of the fourth example, a fixing jig 25 to which the net-like structure 19K is mounted is used, and the fixing jig 25 is fitted and fixed to the upper portion of the tubular member 18.
  • Example 1 The present inventors installed two types of network structures having different pore diameters in the nozzle and performed ultrasonic atomization. Specifically, the nozzle of Example 1 having a network structure having a pore diameter of several tens of ⁇ m or more and 1 mm or less, the nozzle of Example 2 having a network structure having a pore diameter of more than 1 mm, and a pore diameter of less than 1 ⁇ m. Ultrasonic atomization was performed using each of the nozzles of Example 3 provided with the reticulated structure having the above. On the other hand, as a comparative example, ultrasonic atomization was performed using a nozzle not provided with a network structure. As the liquid, an aqueous glycerin solution having a viscosity of 6 ⁇ 10 -3 Pa ⁇ s was used. The conditions of the ultrasonic oscillator are a frequency of 2.4 MHz and an output of 15 W.
  • Example 3 When the nozzle of Example 3 provided with a network structure having a pore diameter of less than 1 ⁇ m was used, a liquid column could not be generated above the nozzle, and almost no droplet could be generated. According to the inference of the present inventors, the reason for this is considered to be that the pore diameter of the network structure is too small and the loss of injection pressure is too large when the thickness is less than 1 ⁇ m.
  • FIG. 5 is experimental data showing the number of jet injections and the values of atomization efficiency at different liquid column diameters.
  • the horizontal axis of the graph shown in FIG. 5 indicates the diameter (mm) of the liquid column, and the vertical axis indicates the number of jet injections (times / 0.05 seconds).
  • the upper part of the graph is an image of a high-speed camera at a specific time after applying ultrasonic waves.
  • the state of the liquid column and its vicinity was observed with a high-speed camera, and the number of times per 0.05 seconds was measured.
  • the number of jet injections was measured for each height by dividing the height of the liquid column into 0 to 5 mm, 5 to 10 mm, and 10 to 15 mm.
  • air for transporting the generated mist to the outside was flowed toward the liquid column at a flow rate of 5 m / sec for a certain period of time, and the weight of the entire container before and after that was measured.
  • the amount of weight loss was defined as the amount of atomization (g).
  • this atomization amount was divided by the input electric energy to calculate the atomization efficiency (g / Wh). Since the diameter of the liquid column differs between the base end side and the tip end side of the liquid column, the diameter of the liquid column was measured at a position 1 mm from the upper surface of the network structure.
  • Jet injection is one of the mechanisms by which fine droplets are generated by ultrasonic atomization.
  • the liquid surface vibrates, the liquid on the side surface of the dent formed on the liquid surface flows toward the bottom, and the flowing liquid rises in the center of the dent. After that, the bubbles burst, the tips of the raised liquid are torn off, and fine droplets are generated one after another.
  • the phenomenon in which bubbles burst when ultrasonic waves are applied through such a process is called jet injection, and the droplets generated from the swelling of the liquid surface during jet injection are called jet droplets.
  • the liquid column diameter was 1.8 mm.
  • the number of jet injections was about 160 times / 0.05 seconds, and the number of jet injections at a high position of 10 to 15 mm from the base end side of the liquid column was the largest.
  • the atomization efficiency was 3.5 g / Wh.
  • Example 1 when the nozzle of Example 1 provided with the network structure having a pore diameter of several tens of ⁇ m to 1 mm was used, the liquid column diameter was 0.6 mm.
  • the number of jet injections was about 250 times / 0.05 seconds, and the number of jet injections at a position as low as 0 to 5 mm from the base end side of the liquid column was the largest.
  • the atomization efficiency was 4.4 g / Wh. Therefore, it was found that when it is desired to increase the amount of atomization as compared with the case where the reticulated structure is not installed, it is desirable to make the reticulated structure 10 ⁇ m or more and 1 mm or less.
  • Example 2 when the nozzle of Example 2 provided with the network structure having a pore diameter exceeding 1 mm was used, the liquid column diameter was 3.0 mm.
  • the number of jet injections was 10 times / 0.05 seconds or less.
  • the atomization efficiency was 2.0 g / Wh.
  • the diameter of the liquid column can be adjusted by changing the pore diameter of the reticulated structure, and the amount of atomization (atomization efficiency) can be further controlled.
  • the ultrasonic density per unit cross-sectional area of the liquid column increases, so that jet injection is likely to occur, and when the liquid column becomes thick, the unit of the liquid column is cut off. It is thought that jet injection is less likely to occur because the ultrasonic density per area is low.
  • the ultrasonic waves propagate to the upper part of the liquid column and are consumed for jet injection at the lower part of the liquid column before the ultrasonic energy is attenuated. , It seems that the atomization efficiency will be improved as a whole.
  • Example 2 Next, the present inventors performed ultrasonic atomization using the nozzle of Example 1 provided with a network structure having a pore size of several tens of ⁇ m to 1 mm, and using three kinds of liquids having different viscosities. Specifically, ultrasonic waves are used using a liquid having a viscosity of 1 ⁇ 10 -3 Pa ⁇ s, a liquid having a viscosity of 6 ⁇ 10 -3 Pa ⁇ s, and a liquid having a viscosity of 30 ⁇ 10 -3 Pa ⁇ s. It was atomized. The other experimental conditions are the same as in Experiment 1. On the other hand, as a comparative example, ultrasonic atomization was performed using liquids having three viscosities using a nozzle not provided with a network structure.
  • FIG. 6 is a graph showing the relationship between the viscosity of the liquid and the atomization efficiency.
  • the atomization efficiency of the nozzle of the comparative example is about 9.8 g / Wh, whereas the nozzle of the first embodiment The atomization efficiency was about 11.7 g / Wh.
  • the atomization efficiency is about 3.6 g / Wh in the comparative example, whereas the atomization efficiency is about 4.4 g / Wh in this example. Met.
  • the atomization efficiency is about 2.0 g / Wh in the comparative example, whereas the atomization efficiency is about 2.4 g / Wh in this example.
  • Example 1 provided with a reticulated structure. It was found that the atomization efficiency can be improved by using the nozzle of No. 3 as compared with the case of using the nozzle of the comparative example not provided with the network structure. Therefore, it was found that the ultrasonic atomizer of the present embodiment can be applied regardless of the viscosity and type of the liquid material used. Furthermore, it is preferable to use a network structure having an appropriate pore size according to the viscosity of the liquid material to be used.
  • FIG. 7 is a cross-sectional view of the ultrasonic atomizer of the second embodiment.
  • the same components as those in FIG. 1 used in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
  • the ultrasonic atomizer 30 of the second embodiment has a nozzle 31 that forms a liquid column W2 of the liquid material W above.
  • the nozzle 31 has a tubular member 18 and a net-like structure 32.
  • the net-like structure 32 has a first net 32A and a second net 32B provided at intervals in the direction along the central axis 18c of the tubular member 18, that is, in the height direction of the tubular member 18. It has multiple nets including.
  • the first net 32A is fixed at a position slightly lower than the upper end of the tubular member 18.
  • the second net 32B is fixed to the upper end of the tubular member 18.
  • Other configurations of the ultrasonic atomizer 30 are the same as those in the first embodiment.
  • the first net 32A and the second net 32B may be nets having the same pore diameter or nets having different pore diameters. Further, the first net 32A and the second net 32B may be nets made of different materials. In the second embodiment, an example in which a plurality of nets are composed of two nets 32A and 32B will be given, but the plurality of nets may be composed of three or more nets.
  • the diameter of the liquid column can be adjusted by changing the pore diameter of the network structure 32, and the amount of atomization can be controlled. The same effect as is obtained.
  • the liquid column W2 is gradually thinned so that the liquid column W2 thinned by the first net 32A is further thinned by the second net 32B. be able to.
  • the ultrasonic atomizing device 30 of the second embodiment is suitable when it is desired to increase the amount of atomization.
  • FIG. 8 is a cross-sectional view of the ultrasonic atomizer 34 of the modified example of the second embodiment.
  • the net-like structure 35 is different from the first net 35A provided at intervals in the direction along the central axis 18c of the tubular member 18. It has a plurality of nets including a second net 35B.
  • the first net 35A and the second net 35B are connected to each other via an arbitrary connecting member 35C.
  • the first net 35A is fixed to the upper end of the tubular member 18, and the second net 35B is located above the tubular member 18.
  • FIG. 9 is a perspective view of the nozzle 37 in the ultrasonic atomizer of the third embodiment.
  • the same components as those in FIG. 1 used in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
  • the nozzle 37 of the third embodiment has a tubular member 38 and a net-like structure 19.
  • the tubular member 38 has a plurality of swirling flow generating members 39 inside the tubular member 38.
  • the plurality of swirling flow generating members 39 generate the swirling flow W5 of the liquid material introduced inside the tubular member 38.
  • a plurality of holes 38h for allowing a liquid substance to flow into the tubular member 38 are provided on the side surface of the tubular member 38.
  • Each of the plurality of swirling flow generating members 39 is provided corresponding to each of the plurality of holes 38h.
  • the swirling flow generating member 39 has a wall surface 39a that closes the upper side of the hole 38h and one side thereof, an inclined curved surface 39b, and an obliquely upper surface along the inner wall surface of the tubular member 38. It is composed of a guide plate having a discharge port 39c for discharging a liquid substance.
  • the swirling flow generating member 39 forms a flow in which the liquid material that has flowed into the inside of the tubular member 38 through the hole 38h is swirled upward along the inner wall surface of the tubular member 38.
  • Other configurations of the ultrasonic atomizer are the same as those of the first embodiment.
  • the diameter of the liquid column can be adjusted by changing the pore diameter of the network structure 19, and the amount of atomization can be controlled. A similar effect can be obtained.
  • the swirling flow generating member 39 forms the swirling flow W5 of the liquid material, so that the flow velocity of the liquid material increases, and the liquid material injected from the tip of the nozzle 37.
  • the injection pressure increases.
  • the ultrasonic atomizer of the third embodiment is suitable when it is desired to increase the amount of atomization.
  • FIG. 10 is a perspective view of the nozzle 41 of the modified example of the third embodiment.
  • a plurality of swirling flow generating members 43 are provided at intervals on the outer surface of the tubular member 42.
  • the swirling flow generating member 43 generates a swirling flow W5 of a liquid material introduced inside the tubular member 42.
  • the swirling flow generating member 43 has a wall portion that forms a flow path 43d that guides a liquid substance to flow along the inner wall surface of the tubular member 42. As a result, the swirling flow generating member 43 forms a flow in which the liquid material that has flowed into the inside of the tubular member 42 swirls upward along the inner wall surface of the tubular member 42.
  • the ultrasonic atomizer of this modified example also has the same actions and effects as those of the third embodiment.
  • FIG. 11 is a perspective view of the nozzle 45 in the ultrasonic atomizer of the fourth embodiment.
  • the same components as those in FIG. 1 used in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
  • the nozzle 45 of the fourth embodiment has a tubular member 46 and a net-like structure 47.
  • the tubular member 46 has a narrowed portion 46b in which the cross-sectional area of the flow path of the liquid material flowing inside the tubular member 46 is narrowed.
  • the tubular member 46 has a flat shape in which the circular injection port at the tip is crushed in one direction, and this portion constitutes the throttle portion 46b. More specifically, since the tubular member has a truncated cone shape, the cross-sectional area of the flow path decreases from the bottom to the top throughout, but the flow path is cut off at the throttle portion. The area is decreasing sharply compared to other parts.
  • Other configurations of the ultrasonic atomizer are the same as those of the first embodiment.
  • the diameter of the liquid column can be adjusted by changing the pore diameter of the network structure 47, and the amount of atomization can be controlled. A similar effect can be obtained.
  • the ultrasonic atomizing device of the fourth embodiment since the tubular member 46 is provided with the throttle portion 46b, the flow velocity of the liquid material increases, and the injection pressure of the liquid material injected from the tip of the nozzle 45 increases. To increase. As a result, an effect that a finer liquid column can be easily formed as compared with the first embodiment can be obtained. Therefore, the ultrasonic atomizer of the fourth embodiment is suitable when it is desired to increase the amount of atomization.
  • FIG. 12 is a perspective view of the nozzle 49 of the modified example of the fourth embodiment.
  • the tubular member 50 has a throttle portion 50b in which the cross-sectional area of the flow path of the liquid material flowing inside the tubular member 50 is narrowed.
  • the tubular member 50 has a portion where the cross-sectional area of the flow path is sharply narrowed at a position between the lower end and the upper end, such as a Venturi pipe, and this portion constitutes the throttle portion 50b. doing.
  • the ultrasonic atomizer of this modified example also has the same actions and effects as those of the fourth embodiment.
  • FIG. 13 is a perspective view of the nozzle 52 in the ultrasonic atomizing device of the fifth embodiment.
  • the same components as those in FIG. 1 used in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
  • the nozzle 52 of the fifth embodiment has a tubular member 53 and a net-like structure 54.
  • the tubular member 53 has a plurality of liquid material injection ports 53c.
  • a top plate 53t is provided at the upper end of the tubular member 53, and four liquid material injection ports 53c are formed on the top plate 53t.
  • the number of liquid material injection ports 53c is not particularly limited.
  • the network structure 54 is provided for each of the plurality of liquid material injection ports 53c in a region including at least the center of gravity point of a circle which is the outer shape of each liquid material injection port 53c when viewed from the normal direction. There is.
  • the net-like structure 54 may be provided on the entire tubular member 53, or may be provided only at a location corresponding to each liquid material injection port 53c. Other configurations of the ultrasonic atomizer are the same as those of the first embodiment.
  • the diameter of the liquid column can be adjusted by changing the pore diameter of the network structure 54, and the amount of atomization can be controlled. A similar effect can be obtained.
  • the tubular member 53 has a plurality of liquid material injection ports 53c, a plurality of thin liquid columns can be formed. As a result, the amount of atomization can be further increased.
  • FIG. 14 is a perspective view of the nozzle 56 of the modified example of the fifth embodiment.
  • the liquid substance injection port of the tubular member 57 is divided into two by crushing the central portion of the upper end in one direction, and two liquid substances are emitted.
  • the outlet 57c is formed.
  • the net-like structure 58 may be provided on the entire tubular member 57, or may be provided only at a location corresponding to each liquid material injection port 57c.
  • the ultrasonic atomizer of this modified example also has the same actions and effects as those of the fifth embodiment.
  • FIG. 15 is a cross-sectional view of the ultrasonic atomizer 60 of the sixth embodiment.
  • the same components as those in FIG. 1 used in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
  • the ultrasonic atomizer 60 of the sixth embodiment includes a housing 61, an ultrasonic vibrator 12, an airflow generating unit 13, and a nozzle 14.
  • the configuration of the nozzle 14 is the same as that of the first embodiment.
  • the housing 61 has an internal space 61a for storing the liquid material W to be the mist-like droplets W1, an air supply port 61b, and an exhaust port 61c.
  • both the air supply port 11b and the exhaust port 11c are provided on the upper part of the housing 11.
  • the airflow F flowing from the air supply port 11b toward the exhaust port 11c flows at a relatively high position away from the liquid level in the housing 11.
  • the air supply port 61b is provided at a relatively low position close to the liquid level
  • the exhaust port 61c is provided at a relatively high position far from the liquid level.
  • the airflow F flowing from the air supply port 61b toward the exhaust port 61c flows from the low position to the high position in the housing 61.
  • the diameter of the liquid column W2 can be adjusted by changing the pore diameter of the network structure 19, and the atomization amount can be controlled. The same effect as the form can be obtained.
  • the ultrasonic atomizing device 60 of the sixth embodiment when a thin liquid column W2 is formed by selecting the pore size of the network structure 19, the following effects can be obtained.
  • a thin liquid column W2 is formed, as shown in FIG. 5, many mist-like droplets W1 are generated at the lower part of the liquid column W2.
  • the airflow F passes through the lower part of the liquid column W2 from a position close to the liquid level in the housing 61 and flows toward a higher position, so that the liquid column Many mist-like droplets W1 generated in the lower part of W2 can be efficiently carried on the air flow F. Therefore, according to the ultrasonic atomizing device 60 of the sixth embodiment, the transport efficiency of the atomized droplet W1 can be improved as compared with the first embodiment.
  • FIG. 16 is a cross-sectional view of the ultrasonic atomizer 63 of the modified example of the sixth embodiment.
  • the housing 64 has an internal space 64a for storing a liquid material W to be a mist-like droplet W1, an air supply port 64b, and an exhaust port 64c. And have.
  • the air supply port 64b is provided at a relatively low position of the housing 64, and the exhaust port 64c is provided on the top plate 64t of the housing 64.
  • a tubular guide pipe 65 is provided inside the housing 64 so as to surround the liquid column W2 formed when ultrasonic waves are applied and the exhaust port 64c.
  • the upper end of the guide pipe 65 is fixed to the top plate 64t, and a gap is provided between the lower end of the guide pipe 65 and the liquid level.
  • the ultrasonic atomizing device 63 of this modified example also has the same actions and effects as those of the sixth embodiment.
  • FIG. 17 is a schematic configuration diagram of the humidity control device 100 of the seventh embodiment.
  • the humidity control device 100 of the present embodiment includes a moisture absorbing unit 101, an atomization regeneration unit 102, a first liquid moisture absorbing material transport flow path 103, and a second liquid moisture absorbing material transport flow path 104.
  • the first air introduction flow path 105, the second air introduction flow path 106, the first air discharge flow path 107, the second air discharge flow path 108, and the control unit 109 are provided.
  • the humidity control device 100 includes an outer shell housing 110, and the moisture absorbing unit 101 and the atomization regeneration unit 102 are housed in the internal space 110c of the outer shell housing 110.
  • the moisture absorbing portion 101 includes a first storage tank 112, a blower 113, and a moisture absorbing portion nozzle 114.
  • the hygroscopic unit 101 causes the liquid hygroscopic material L to absorb at least a part of the moisture contained in the air A1 by bringing the liquid hygroscopic material L containing the hygroscopic substance into contact with the air A1 existing in the external space. It is desirable that the moisture absorbing portion 101 absorbs as much water as possible into the liquid moisture absorbing material L, but at least a part of the moisture contained in the air A1 may be absorbed by the liquid moisture absorbing material L.
  • the liquid moisture absorbing material L is stored inside the first storage tank 112.
  • the liquid moisture absorbing material L will be described later.
  • the first air introduction flow path 105, the first air discharge flow path 107, and the first liquid hygroscopic material transport flow path 103 are connected to the first storage tank 112.
  • the air A1 is supplied to the internal space of the first storage tank 112 by the blower 113 via the first air introduction flow path 105.
  • the moisture absorbing portion nozzle 114 is arranged in the upper part of the internal space of the first storage tank 112. After being regenerated by the atomization regeneration unit 102 described later, the liquid hygroscopic material L1 returned to the moisture absorption unit 101 via the second liquid moisture absorption material transport flow path 104 is inside the first storage tank 112 from the moisture absorption unit nozzle 114. It flows down into the space, and at this time, the liquid hygroscopic material L1 and the air A1 come into contact with each other. This type of contact between the liquid hygroscopic material L1 and the air A1 is generally referred to as a "flow-down method".
  • the contact form between the liquid moisture absorbing material L1 and the air A1 is not limited to the flow-down method, and other methods can be used.
  • a so-called bubbling method in which the air A1 is supplied in the form of bubbles in the liquid moisture absorbing material L stored in the first storage tank 112, can also be used.
  • the air A1 existing in the external space forms an air flow from the blower 113 toward the discharge port 107b of the first air discharge flow path 107, and comes into contact with the liquid moisture absorbing material L flowing down from the moisture absorbing portion nozzle 114. At this time, at least a part of the moisture contained in the air A1 is removed by being absorbed by the liquid moisture absorbing material L. Since the moisture absorbing portion 101 obtains air from which moisture has been removed from the original indoor air A1, this air is drier than the air in the external space of the humidity control device 100. In this way, the dry air A2 is discharged into the room through the first air discharge flow path 107.
  • the liquid hygroscopic material L is a liquid that exhibits a property of absorbing moisture (hygroscopicity). For example, a liquid that exhibits hygroscopicity under conditions of a temperature of 25 ° C., a relative humidity of 50%, and atmospheric pressure is preferable.
  • the liquid hygroscopic material L contains a hygroscopic substance described later. Further, the liquid hygroscopic material L may contain a hygroscopic substance and a solvent. Examples of this type of solvent include solvents that dissolve or mix with hygroscopic substances, such as water.
  • the hygroscopic substance may be an organic material or an inorganic material.
  • Examples of the organic material used as a hygroscopic substance include alcohols having a divalent value or higher, ketones, organic solvents having an amide group, sugars, known materials used as raw materials for moisturizing cosmetics, and the like.
  • an organic material preferably used as a hygroscopic substance because of its high hydrophilicity a known material used as a raw material for alcohols having a divalent value or higher, an organic solvent having an amide group, sugars, moisturizing cosmetics and the like. Can be mentioned.
  • dihydric or higher alcohols examples include glycerin, propanediol, butanediol, pentanediol, trimethylolpropane, butanetriol, ethylene glycol, diethylene glycol, and triethylene glycol.
  • organic solvent having an amide group examples include formamide and acetamide.
  • sugars examples include sucrose, pullulan, glucose, xylene, fructose, mannitol, sorbitol and the like.
  • Known materials used as raw materials for moisturizing cosmetics include, for example, 2-methacryloyloxyethyl phosphorylcholine (MPC), betaine, hyaluronic acid, collagen and the like.
  • MPC 2-methacryloyloxyethyl phosphorylcholine
  • betaine betaine
  • hyaluronic acid collagen and the like.
  • inorganic materials used as hygroscopic substances include calcium chloride, lithium chloride, magnesium chloride, potassium chloride, sodium chloride, zinc chloride, aluminum chloride, lithium bromide, calcium bromide, potassium bromide, sodium hydroxide, and pyrrolidone.
  • examples thereof include sodium carboxylate.
  • the hygroscopic substance has high hydrophilicity, for example, when the material of the hygroscopic substance and water are mixed, the proportion of water molecules in the vicinity of the surface (liquid surface) of the liquid hygroscopic material L increases.
  • the atomization regeneration unit 102 which will be described later, generates atomized droplets W1 from the vicinity of the surface of the liquid moisture absorbing material L to separate water from the liquid moisture absorbing material L. Therefore, it is preferable that the proportion of water molecules in the vicinity of the surface of the liquid moisture absorbing material L is large in that water can be efficiently separated.
  • the proportion of water molecules in the vicinity of the surface of the liquid hygroscopic material L is large, the proportion of the hygroscopic substance in the vicinity of the surface of the liquid hygroscopic material L is relatively small, so that the hygroscopic substance in the atomization regeneration unit 102 It is preferable in that loss can be suppressed.
  • the concentration of the hygroscopic substance contained in the liquid hygroscopic material L1 used for the treatment in the moisture absorbing portion 101 is not particularly limited, but is preferably 40% by mass or more.
  • the concentration of the hygroscopic substance is 40% by mass or more, the liquid hygroscopic material L1 can efficiently absorb water.
  • the viscosity of the liquid hygroscopic material L is preferably 25 ⁇ 10 -3 Pa ⁇ s or less.
  • the liquid column W2 of the liquid moisture absorbing material L is likely to be generated on the liquid surface of the liquid moisture absorbing material L. Therefore, water can be efficiently separated from the liquid moisture absorbing material L.
  • the atomization regeneration unit 102 since the atomization regeneration unit 102 includes the ultrasonic atomization apparatus of the first to sixth embodiments, which can obtain high atomization efficiency regardless of the viscosity of the liquid to be atomized. Even if the liquid moisture absorbing material L has a high viscosity, water can be separated more efficiently than in the conventional case.
  • the atomization regeneration unit 102 includes a second storage tank 116 (housing), a blower 117 (air flow generation unit), an ultrasonic oscillator 118, and an induction tube 119.
  • the atomization regeneration unit 102 atomizes at least a part of the water contained in the liquid hygroscopic material L2 supplied from the hygroscopic unit 101 via the first liquid hygroscopic material transport flow path 103, and at least the water from the liquid hygroscopic material L2.
  • the liquid hygroscopic material L2 is regenerated by removing a part of the material.
  • the liquid moisture absorbing material L2 to be regenerated is stored in the second storage tank 116.
  • the first liquid moisture absorbing material transport flow path 103, the second liquid moisture absorbing material transport flow path 104, the second air introduction flow path 106, and the second air discharge flow path 108 are connected to the second storage tank 116.
  • the second storage tank 116 corresponds to the housing in the ultrasonic atomizer of the first to sixth embodiments.
  • the blower 117 sends air A1 from the external space of the outer shell housing 110 into the inside of the second storage tank 116 via the second air introduction flow path 106, and the second air discharge flow from the inside of the second storage tank 116.
  • An air flow flowing to the outside of the outer shell housing 110 is generated through the path 108.
  • the ultrasonic vibrator 118 irradiates the liquid hygroscopic material L2 with ultrasonic waves to generate mist-like droplets W1 containing water from the liquid hygroscopic material L2.
  • the ultrasonic vibrator 118 is provided in contact with the bottom plate of the second storage tank 116.
  • the liquid column W2 of the liquid hygroscopic material L2 is generated on the liquid surface of the liquid hygroscopic material L2 by adjusting the generation conditions of the ultrasonic waves. Can be done.
  • Most of the mist-like droplets W1 are generated from the liquid column W2 of the liquid hygroscopic material L2 and its vicinity.
  • the guide pipe 119 guides the mist-like droplet W1 generated from the liquid moisture absorbing material L2 to the exhaust port 108b of the second air discharge flow path 108.
  • the guide pipe 119 is provided so as to surround the exhaust port 108b.
  • the second air discharge flow path 108 discharges the air A4 containing the mist-like droplets W1 into the outer space of the outer shell housing 110 and removes it from the inside of the humidity control device 100.
  • water can be separated from the liquid moisture absorbing material L2.
  • the hygroscopic performance of the liquid hygroscopic material L2 is enhanced again, and the liquid hygroscopic material L2 can be returned to the hygroscopic unit 101 and reused.
  • the air A4 contains the mist-like droplets W1 generated inside the second storage tank 116, the air A4 is moist than the air A2 in the outer space of the outer shell housing 110. In this way, the humidified air A4 is discharged into the room through the second air discharge flow path 108.
  • the exhaust port 108b overlaps the ultrasonic vibrator 118 in a plane, so that a liquid column W2 of the liquid moisture absorbing material L2 is generated below the exhaust port 108b. Therefore, the atomization regeneration unit 102 is designed so that the guide pipe 119 surrounds the liquid column W2 generated in the liquid moisture absorbing material L2. Since the exhaust port 108b, the guide pipe 119, and the liquid column W2 are in such a positional relationship, the mist-like shape generated from the liquid column W2 of the liquid hygroscopic material L2 due to the air flow upward from the liquid surface of the liquid hygroscopic material L2. The droplet W1 is guided to the exhaust port 108b.
  • the moisture absorbing unit 101 and the atomization regeneration unit 102 are connected by a first liquid hygroscopic material transport flow path 103 and a second liquid hygroscopic material transport flow path 104 that form a circulation flow path of the liquid hygroscopic material L.
  • a pump 121 for circulating the liquid moisture absorbing material L is provided in the middle of the second liquid moisture absorbing material transport flow path 104.
  • the first liquid hygroscopic material transport flow path 103 transports the liquid hygroscopic material L2, which has absorbed at least a part of water, from the moisture absorption unit 101 to the atomization regeneration unit 102.
  • One end of the first liquid moisture absorbing material transport flow path 103 is connected to the lower part of the first storage tank 112.
  • the connection point of the first liquid hygroscopic material transport flow path 103 in the first storage tank 112 is located below the liquid level of the liquid hygroscopic material L in the first storage tank 112.
  • the other end of the first liquid moisture absorbing material transport flow path 103 is connected to the lower part of the second storage tank 116.
  • the connection point of the first liquid hygroscopic material transport flow path 103 in the second storage tank 116 is located below the liquid level of the liquid hygroscopic material L2 in the second storage tank 116.
  • the second liquid hygroscopic material transport flow path 104 transports the regenerated liquid hygroscopic material L from which the moisture has been removed from the atomization regeneration unit 102 to the moisture absorption unit 101.
  • One end of the second liquid moisture absorbing material transport flow path 104 is connected to the lower part of the second storage tank 116.
  • the connection point of the second liquid hygroscopic material transport flow path 104 in the second storage tank 116 is located below the liquid level of the liquid hygroscopic material L2 in the second storage tank 116.
  • the other end of the second liquid moisture absorbing material transport flow path 104 is connected to the upper part of the first storage tank 112.
  • connection point of the second liquid hygroscopic material transport flow path 104 in the first storage tank 112 is located above the liquid level of the liquid hygroscopic material L1 in the first storage tank 112 and is connected to the above-mentioned moisture absorbing part nozzle 114. ing.
  • the dehumidified air is discharged from the hygroscopic unit 101 through the first air discharge flow path 107, and the humidified air is discharged from the atomization regeneration unit 102 through the second air discharge flow path 108. It was explained that it was discharged through.
  • the humidity control device 100 of the present embodiment is an air conditioner having only a dehumidification function, for example, the air outlet of the first air discharge flow path 107 is arranged toward the room, while the first 2
  • the air discharge port of the air discharge flow path 108 may be arranged so as to face the outdoor side.
  • the air discharge port of the second air discharge flow path 108 is arranged toward the room, while the air discharge port of the first air discharge flow path 107 is arranged outdoors.
  • the configuration may be arranged so as to face.
  • both the air outlets of the first air discharge flow path 107 and the second air discharge flow path 108 are arranged and controlled toward the room.
  • the configuration may be such that the unit 109 controls which air discharge port the air is discharged from.
  • the atomization regeneration unit 102 is composed of the ultrasonic atomization device of the above embodiment, the amount of atomization is increased by optimizing the pore size of the network structure. At the same time, the atomization efficiency can be improved. As a result, it is possible to realize the humidity control device 100 having high regeneration efficiency of the liquid moisture absorbing material L.
  • the housing is not provided with an inlet and an outlet for a liquid substance, but an inlet and an outlet are provided, and ultrasonic atomization is continuously performed. It may be configured as such.
  • the specific description of the number, shape, arrangement, material, etc. of various components of the ultrasonic atomizer and the humidity control device exemplified in the above embodiment is not limited to the above embodiment, and may be appropriately changed. Is possible.
  • the ultrasonic atomizing device of the present invention can also be applied when used in a device for controlling in a desired direction.
  • the atomizing device of the present invention can be used for various devices such as a nebulizer, a separating device, a coating device, and a liquid concentrating device, in addition to the above-mentioned humidity control device.

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CN113893985A (zh) * 2021-11-02 2022-01-07 广州大学 一种超声雾化装置
US20220111412A1 (en) * 2020-01-17 2022-04-14 Toshiba Mitsubishi-Electric Industrial Systems Corporation Ultrasonic atomization apparatus
CN119952084A (zh) * 2025-02-14 2025-05-09 淮阴师范学院 一种利用超声波辅助多材料增材制造设备
US12616991B2 (en) * 2020-01-17 2026-05-05 Tmeic Corporation Ultrasonic atomization apparatus

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JP2025126974A (ja) * 2024-02-20 2025-09-01 三菱重工業株式会社 ナノ水滴生成装置および蒸気タービンシステム

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JPS57148626U (https=) * 1982-02-24 1982-09-18
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US20220111412A1 (en) * 2020-01-17 2022-04-14 Toshiba Mitsubishi-Electric Industrial Systems Corporation Ultrasonic atomization apparatus
US12616991B2 (en) * 2020-01-17 2026-05-05 Tmeic Corporation Ultrasonic atomization apparatus
CN113893985A (zh) * 2021-11-02 2022-01-07 广州大学 一种超声雾化装置
CN119952084A (zh) * 2025-02-14 2025-05-09 淮阴师范学院 一种利用超声波辅助多材料增材制造设备

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