JP2010167352A - Mist production apparatus and mist production method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mist production apparatus which efficiently produces mist containing a certain active seed having an oxidizing powder and disinfecting power by a single device, has a simple apparatus configuration, and is hardly deteriorated in the capability and to provide a mist production method. <P>SOLUTION: The mist production apparatus includes a pulse power source and a pair of electric electrodes connected to a terminal part of the pulse power source and is characterized in that one of the electrodes has a plurality of respectively separated terminal parts which are respectively covered at least partially with a dielectric and that pulsed voltage can be applied between the pair of the electrodes while a liquid is set between the dielectric in the respective parts and the other electrode in a manner that the liquid surface is brought into contact with the dielectric. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a mist generating apparatus and method capable of generating a mist containing an oxidizing species by generating a discharge in a gas phase between a liquid phase and a dielectric (solid phase).

  2. Description of the Related Art Conventionally, a technique is known that uses a discharge generated in water by applying a high voltage between electrodes (for example, Patent Document 1).

  The mist generating apparatus described in Patent Document 1 is configured to reform this water by discharge in water, and as a specific configuration thereof, an electrode disposed in a non-contact state in contact with water in the discharge vessel An AC pulse voltage having an asymmetrical waveform of positive and negative inversion is applied to the electrode, and underwater discharge is performed by an electric field that is induced in the potential inversion and generated in the discharge vessel. And by this structure, water reforming is performed.

Conventionally, a technique for sterilizing a space using a mist containing an oxidizing species is known (see, for example, Patent Documents 2 to 4).
The mist generating apparatus described in Patent Document 2 includes a creeping discharge element for generating oxidizing species from air and a spray nozzle for mixing mist. And these 2 elements spray the mist containing an oxidation seed | species, and can sterilize space.

Moreover, the mist production | generation apparatus of patent document 3 makes an electrode atomize electrostatically, making water transport to the front-end | tip of a needle electrode, and making it discharge by using a capillary phenomenon as an electrode-like porous water absorbing body. Thereby, the production | generation of the mist containing the oxidation seed | species is enabled with one device.
Moreover, the mist production | generation apparatus of patent document 4 uses an electrode as a needle-shaped metal, and discharges it using the water condensed by cooling of the electrode. This makes it possible to generate mist containing oxidizing species with one device without water supply.

Special table 2001-507274 gazette JP 2006-109924 A JP 2004-358358 A JP 2008-155145 A

  The invention described in Patent Document 1 is an invention aimed at reforming water using discharge in water, and does not actively produce mist containing oxidizing species.

  The invention described in Patent Document 2 is composed of two devices, a creeping discharge element and a spray nozzle, and since the number of parts is large, mechanical deterioration is likely to occur, and the apparatus shape is complicated and large.

  In the invention described in Patent Document 3, it is necessary to create a porous water-absorbing body and an electrode having a complicated shape. Moreover, since an electrode is porous, antifouling property and cleaning property are low.

  In the invention described in Patent Document 4, since the electrode is a metal lump, metal oxidation due to discharge occurs, resulting in a decrease in oxidizing species generation ability and mist generation ability.

  The present invention was made in order to solve the problems such as the enlargement of the apparatus, the maintainability of the apparatus, and the performance deterioration, and the object of the present invention is to generate a mist containing active species having oxidizing power and sterilizing power. Then, it is providing the mist production | generation apparatus and mist production | generation method with which an apparatus structure is simple and a performance fall does not occur easily.

In order to solve the above-described problem, the mist generating apparatus of the present invention
Pulse power supply,
A pair of electrodes electrically connected to an end of the pulse power source;
One of the electrodes has a plurality of spaced apart ends,
Each of the plurality of ends is covered with a dielectric at least a part of the region;
Between each of the dielectrics and the other electrode,
Interposing a liquid so that the liquid surface is in contact with the dielectric,
A pulse voltage is applied between the pair of electrodes.

Moreover, the mist generation method of the present invention includes:
Pulse power supply,
A pair of electrodes electrically connected to an end of the pulse power source;
One of the electrodes has a plurality of spaced apart ends,
Each of the plurality of ends is covered with a dielectric at least a part of the region;
Between each of the dielectrics and the other electrode,
Interposing a liquid so that the liquid surface is in contact with the dielectric,
A pulse voltage is applied between the pair of electrodes.

  According to the present invention, a mist generating apparatus and a mist generating apparatus that efficiently generate mist containing active species having oxidizing power and bactericidal power with a single device and provide a mist generating apparatus that has a simple apparatus configuration and is unlikely to cause performance degradation. A method can be provided.

It is the top view (a) and sectional drawing (b) corresponding to the conceptual diagram which shows the schematic structure of the mist production | generation apparatus which concerns on the 1st Embodiment of this invention. It is the top view (a) and sectional drawing (b) corresponding to the conceptual diagram explaining an effect | action of the mist production | generation apparatus shown in FIG. It is a conceptual diagram corresponding to FIG. 1 which shows the 1st modification of the mist production | generation apparatus shown in FIG. It is the top view (a) and sectional drawing (b) corresponding to the conceptual diagram which shows the schematic structure of the mist production | generation apparatus which concerns on the 2nd Embodiment of this invention. FIG. 5 is a plan view (a) and a cross-sectional view (b) corresponding to a conceptual diagram showing a first modification of the mist generating apparatus shown in FIG. 4. It is a top view corresponding to the schematic of the mist production | generation apparatus which concerns on the 3rd Embodiment of this invention. It is the evaluation test result of 1st Embodiment for proving the usefulness of this invention.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, a mist generating apparatus and a mist generating method according to each embodiment and examples of the invention will be described with reference to the drawings. Here, FIG. 1 is a conceptual diagram showing a schematic configuration of the mist generating apparatus according to the first embodiment of the present invention, and FIG. 2 is for explaining the operation of the mist generating apparatus shown in FIG. It is a conceptual diagram. In these drawings, cross-sectional hatching is omitted in order to facilitate understanding of the configuration (hereinafter, the same applies to other drawings).

  The mist generating apparatus 100 according to the first embodiment of the present invention includes a pulse power source 101, a comb-like electrode 102 (see FIG. 1B) connected to each end of the pulse power source 101, and an electrode 103. Of these, the entire surface of the comb-like electrode 102 having a plurality of spaced-apart ends 201, 202, 203 is covered with a dielectric 105, and a lump of liquid is formed between the dielectric 105 and the other electrode 103. Water W that has entered the container 104 is interposed. At this time, the water W has the same water level as that of the comb-tooth portion of the comb-like electrode 102, that is, the end portions 201, 202, and 203 of the electrode 102. Since the water W has the same potential as the electrode 103 due to the voltage applied to the pair of electrodes 102 and 103 electrically via the pulse power supply 101, a potential difference is generated between the electrode 102 and the dielectric 105. In the portion where the surface of the water W contacts the surface of the water W, in the present embodiment, the end portions 201, 202, and 203, which are a plurality of end portions, the surrounding air is between the dielectric 105 and the water W that covers the end portions. Discharge is performed via A (see discharge AD (Atmospheric discharge) indicated by a dotted line in FIG. 1). Note that a high voltage pulse power supply is used as the pulse power supply 101.

  The water W is not limited to pure water, and may be any water such as tap water and sewage. Moreover, liquids other than water may be sufficient. Similarly, the air A is not limited to pure air but may be air containing odorous substances, pollutants, or water vapor, or may be a gas other than air.

Next, a mist generation method using the mist generation apparatus 100 having such a configuration will be described. In carrying out this mist generation method, a pulse voltage is first applied between the electrodes via the pulse power supply 101 of the mist generation device 100. As a result, at the portion where the dielectric 105 covering the comb-shaped electrode 102 having a plurality of ends and the water surface of the water W are in contact with each other, as shown in FIG. Discharge occurs (see discharge AD indicated by a dotted line in FIG. 2). By this discharge, for example, when the gas is air or oxygen, a part of the oxygen is a highly reactive substance such as ozone (O ₃ ), oxygen atom (O), superoxide anion (O ₂ ⁻ ) (called active species). )become. In addition, when the liquid is water, the active species react with water, or the water molecules are directly subjected to the action of discharge, and active species such as hydroxy radical (.OH) and hydrogen peroxide (H ₂ O ₂ ). Is also generated. When these active species drift in the gas phase or dissolve in the liquid phase, the gas phase and liquid phase substances can be oxidized (decomposed) or sterilized, and the gas phase and liquid phase can be purified and reformed. Conceivable. In particular, the dielectric (solid phase) is directly affected by the discharge, or the attached species (for example, dirt) is removed (purified) by the active species generated in the gas phase or liquid phase, or the surface is made hydrophilic. It is thought that such modification is made. In addition, odorous substances, pollutants, and bacilli contained in the gas phase and liquid phase are directly affected by the discharge and changed to other substances or sterilized to purify and modify the gas phase and liquid phase. It is thought that it may be performed. That is, it can be said that the mist production | generation apparatus and mist production | generation method in this invention are the discharge apparatus and discharge method which can perform the modification | reformation and disinfection of a gaseous phase or a liquid phase.

In addition, this discharge generates mist containing active species such as hydroxy radicals (.OH) and hydrogen peroxide (H ₂ O ₂ ) (see the periphery of the discharge AD portion indicated by the dotted line in FIG. 2). When these mists drift in the gas phase, the gas phase bacilli are sterilized. Further, since the mist contains active species, it is considered that the gas phase odor substance is also altered.

In addition, when the gas is air, nitrogen oxides (NOx) are generated by discharge, and they dissolve in the liquid (water) to become nitric acid (HNO ₃ ), and the water becomes acidic water (the pH of water decreases). ) The effect can be expected.

  Even when the gas phase is other than air and the liquid phase is other than water, the molecules that form them are dissociated by discharge and become highly reactive substances (for example, radicals), enabling purification and reforming of the gas phase and liquid phase. Become.

  Further, since no discharge is caused from the electrode 103 immersed in water, corrosion and consumption of the electrode surface and accompanying dissolution in the liquid (contamination of the liquid) can be avoided.

  As in the present invention, each of the electrodes has a plurality of spaced apart end portions, and each of the plurality of end portions is covered at least in part with a dielectric, and each of the dielectric and the other electrode By interposing the liquid so that the liquid surface is in contact with the dielectric, the number of places where discharge is generated is increased when compared with, for example, a single plate-like electrode having a dielectric on the entire surface. , Mist generation efficiency is improved.

  Thus, by covering the surface of the electrode with a dielectric, it is possible to prevent the electrode from being deteriorated due to discharge. In addition, by making the electrodes comb-shaped, that is, by separating the discharge parts into a plurality of parts, the concentration distribution of the highly active mist generated by the discharge is lower than that of the plate-like electrode, and the highly active mists This reaction can be suppressed. Therefore, the mist can be dispersed in the space while maintaining a highly active state.

In addition, since active species can be generated and scattered as mist by one device in this way, the apparatus can be miniaturized and the number of parts can be reduced, so that maintainability is also improved.
Furthermore, since the shape of an electrode and a dielectric material may be simple, antifouling property and cleaning property are high.
Further, since the surface of the electrode is covered with a dielectric, the electrode is not deteriorated by discharge, and the sterilization mist generating ability is not deteriorated.

  Then, the 1st modification of the mist production | generation apparatus 100 which concerns on 1st Embodiment mentioned above is demonstrated. FIG. 3 is a conceptual diagram schematically showing a mist generating apparatus 110 according to a first modification of the mist generating apparatus 100 shown in FIG. In addition, about the structure equivalent to the mist production | generation apparatus 100 which concerns on the above-mentioned 1st Embodiment, corresponding code | symbol is attached | subjected and detailed description is abbreviate | omitted. Moreover, since the material of each component of the mist production | generation apparatus 110 which concerns on this modification is the same as that of the mist production | generation apparatus 100 which concerns on the above-mentioned 1st Embodiment, the detailed description is abbreviate | omitted.

  Unlike the mist generating device 100 according to the first embodiment, the mist generating device 110 according to the first modified example has an end portion 201 that is a plurality of spaced end portions outside the side wall of the container 115 made of a dielectric, Comb-like electrodes 112 having 202 and 203 are installed, and the electrode 113 is placed in a container 115 made of a dielectric. A lump of water W is interposed between the dielectric 115 of the one comb-shaped electrode 112 and the other electrode 113.

  The first embodiment also has a simple configuration in which comb-like electrodes 112 having a plurality of spaced apart ends 201, 202, 203 are installed outside the side wall of the container 115 made of such a dielectric. The same effect as the mist generating apparatus 100 according to the above is produced.

  Specifically, by applying a pulse voltage to the electrodes 112 and 113 of the mist generating device 110 via a pulse power supply 111 composed of a high-voltage pulse power supply, the end portions 201, 202, A discharge is generated via air A between the dielectric 115 covering a part of 203 and the surface of the water W between the water W and the dielectric 115 (see the discharge AD indicated by the dotted line in FIG. 3). The effect similar to 1st embodiment can be acquired.

  Then, the mist production | generation apparatus which concerns on the 2nd Embodiment of this invention is demonstrated. FIG. 4 is a conceptual diagram showing a schematic configuration of a mist generating apparatus 120 according to the second embodiment of the present invention. In addition, about the structure equivalent to the above-mentioned embodiment and each modification, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. The mist generating apparatus 120 according to the second embodiment has the same basic configuration as the mist generating apparatus 100 according to the first embodiment shown in FIG. 1, but at both ends of a pulse power supply 121 composed of a high-voltage pulse power supply. The configuration is different in that both the connected comb-like electrode 122 and electrode 123 are completely covered with dielectrics 205 and 206.

  When the electrodes 122 and 123 of the discharge device 120 both have a plurality of ends, for example, a comb-like electrode or a plurality of electrodes having one polarity, discharge is generated via air. The number of locations will be further increased, more active species will be generated by short-time discharge, and liquid phase, gas phase, solid phase purification and reforming can be performed by them or directly by discharge, more efficient Purify and reform well. Moreover, in FIG. 4, you may install both electrodes in the side wall outer side of the container which consists of a dielectric material like the discharge device 110. FIG.

  Thus, by covering the electrodes 122 and 123 with the dielectrics 125 and 126, respectively, when a pulse voltage is applied to the electrodes 122 and 123 connected to both ends of the pulse power supply 121, the potential of the water W is changed between the electrodes 122 and 123. Between the electrode 122 and the water W and between the electrode 123 and the water W, the dielectrics 125 and 126 are in contact with the dielectrics 125 and 126 and the water surface of the water W. A discharge is generated between the water W and the water W via the air A (see the discharge AD indicated by the dotted line in FIG. 4).

  Subsequently, a mist generating device 130 according to a first modification of the second embodiment of the present invention will be described. The cylindrical container 134 is made of a dielectric, and has a plurality of spaced end portions 201 and 202 and end portions 301 and 302 connected to both ends of a pulse power supply 131 composed of a high voltage pulse on the outer periphery of the container 134. The comb-shaped (top view) and arc-shaped (cross-sectional) electrodes 132 and 133 are installed so that the comb teeth, that is, the respective ends engage with the outer periphery of the cylindrical dielectric 134 toward the bottom of the container 134. .

  When the high voltage pulse is applied when the water W remains in the cylindrical dielectric 134 or is flowing, the air between the cylindrical dielectric 134 on the comb electrodes 132 and 133 and the water W is applied. Discharge at A (AD shown by dotted line in FIG. 5).

  Thereby, even in a state where the amount of water is extremely small and water droplets can be formed with residual water, the electrodes having a plurality of comb-shaped, i.e., spaced apart end portions are arranged along the bottom surface. If it exists in the dielectric on the electrode, it can be discharged.

  Next, the mist generating apparatus 140 according to the third embodiment of the present invention will be described. The mist generating device 140 has a pulse power supply 141 and a pair of electrically connected electrodes 142 and 143 connected to each end of the pulse power supply 141. The electrode 142 is branched by a conducting wire and has one polarity. 401, 402. That is, the electrode 142 which is one electrode has a plurality of electrodes having one polarity. The electrodes 401 and 402 are entirely covered with dielectrics 145 and 146, respectively. Water W is interposed as a liquid between the dielectrics 145 and 146 and the other electrode 143. Then, a pulse voltage is electrically applied to the pair of electrodes 142 and 143 via the pulse power supply 141, so that the dielectrics 145 and 146 are in contact with the water W at the portion where the dielectrics 145 and 146 are in contact with the water W. Is discharged through the surrounding air A. (Refer to the discharge AD indicated by the dotted line in FIG. 6)

  Thereby, the effect similar to Embodiment 1 is acquired. Further, when a plurality of electrodes having one polarity such as the electrodes 401 and 402 are largely separated from each other, it can be extended with a conductive wire rather than installing a plurality of separated ends on the electrode, so that the cost is low. Can be manufactured.

  In addition, as long as the material of the electrode used by each embodiment mentioned above and its modification may be a conductor, for example, if it is a metal, any of copper, silver, aluminum, titanium, those alloys, etc. can be used, Even non-metals can be used, for example, conductive ceramics and resins as long as they have lower electrical conductivity than the liquid used.

  In addition, as a material as a dielectric used in each of the above-described embodiments and modifications thereof, a non-conductive ceramic such as alumina, or a material such as glass or resin may be used.

  The thickness of the dielectric is preferably 0.1 μm to 10 mm, although it depends on the material used and the voltage of the pulse power supply.

  The liquid container or flow path may be entirely made of a dielectric, or at least a part of the container or flow path, that is, the vicinity of the liquid surface may be made of a dielectric.

  In addition, as an insulator material used in the above-described embodiments and modifications thereof to prevent discharge between safety surfaces and electrodes, it has insulating properties such as resin, insulating ceramics, and glass. Any material can be used.

  In addition, as the type of liquid in the present invention, water is used as the liquid in the above-described embodiment, but any liquid such as organic solvent or oil is used in addition to water such as pure water, tap water, and sewage. Also good.

  In each of the above-described embodiments and modifications thereof, normal air is used as the gas. However, the gas may be any air such as oxygen, nitrogen, water vapor, and helium, not limited to air or air containing impurities such as odor substances. .

The terms relating to the pulse voltage used in the present invention will be explained.
(Pulse voltage)
The voltage changes with a certain pulse period, and the waveform includes a sine wave, a sawtooth wave, and a rectangular wave. The voltage may be a direct-current voltage that is biased to be positive or negative, or an alternating voltage in which the voltage goes back and forth between positive and negative. Further, there may be a time for holding a constant voltage, and the pulse rise time T1 and the pulse fall time T2 may be the same or different.
The pulse frequency is 50 Hz to 1 MHz, preferably 100 Hz to 500 kHz, more preferably 1 kHz to 100 kHz, although it depends on the voltage and the dielectric material and thickness.

(Pulse power supply)
Power supply that can generate pulse voltage.
(Pulse voltage value Vp-p)
This is the potential difference between the maximum potential and the minimum potential in the pulse voltage.
The pulse voltage value Vp-p applied to the electrode is preferably from 300 Vp-p to 300 kVp-p, preferably from 1 kVp-p to 100 kVp-p, more preferably 3 kVp-p, depending on the dielectric material and thickness. To 30 kVp-p is good.

(Pulse rise time T1)
This is the time during which the pulse voltage continuously increases, and is the time from the inflection point at which the voltage starts to increase to the maximum point.
The pulse rise time T1 depends on the voltage, dielectric material, and thickness.
3 to 10 milliseconds is good,
Preferably 4 microseconds to 5 milliseconds,
More preferably, 5 microseconds to 0.5 milliseconds is good.

(Pulse fall time T2)
This is the time during which the pulse voltage continuously decreases, and is the time from the inflection point at which the voltage starts to decrease to the next minimum point.
The pulse fall time T2 depends on the voltage, dielectric material, and thickness.
3 to 10 milliseconds is good,
Preferably 4 microseconds to 5 milliseconds,
More preferably, 5 microseconds to 0.5 milliseconds is good.

(Pulse cycle T3)
This is the time from the maximum value of the pulse voltage to the next maximum value.
(Pulse frequency)
It is the reciprocal of the pulse period T3.

  Subsequently, since an evaluation test for verifying the usefulness of the present invention was performed in relation to the above-described embodiment and various modifications thereof, the evaluation test result will be described.

  A first example showing the evaluation test results in FIG. 7 will be described. In the first embodiment, in carrying out the present invention, a mist generating apparatus 100 (see FIGS. 1 and 7B) using the electrodes having a plurality of spaced end portions according to the first embodiment described above, and Measurement data is taken using a mist generating device (see FIG. 7A) in which the electrode 102 of the mist generating device 100 according to the first embodiment is a plate-like electrode, and an oxidation reaction of potassium iodide (KI) is performed. It was.

As conditions for this evaluation test, 100 ml of tap water was put in a container 104 of a mist generating apparatus corresponding to FIG. 1, and a filter paper having a diameter of 10 cm containing 2 ml of a 0.1 mol / L KI aqueous solution was directly above the mist generating apparatus. and the height from the water surface is installed at a position of 10 cm, I ₃ after the reaction ^- the concentration measured in the visible-ultraviolet spectrophotometer. The general specifications of the mist generating device use silver as the electrode material, alumina with a thickness of 0.6 mm as the dielectric, and the length of the electrodes forming the discharge part to 12 mm in total length, and the applied pulse voltage is pulse The frequency was a 1 kHz sine wave, the pulse rising time and the falling speed were 0.5 milliseconds, and the pulse voltage value Vp-p was 21 kVp-p.

  As can be seen from the evaluation results shown in FIG. 7, by applying a pulse voltage to the electrodes, the reaction of potassium iodide proceeds, and even if the electrode lengths of the discharge portions are the same, comb-like electrodes having a plurality of discharge points It was proved that more can be oxidized.

  As described above, according to the present invention, discharge is generated in a gas phase between a liquid phase and a dielectric (solid phase) with a simple configuration, and purification and reforming of the gas phase, liquid phase, and solid phase are performed. It is possible to provide a discharge device and a discharge method that enable the above.

  Further, it is possible to generate a mist by generating a mist in a gas phase between a liquid phase and a dielectric (solid phase) with a simple configuration, and to kill gonococci floating in the gas phase by the mist. Moreover, since mist contains active species, it is considered that the odor substance in the gas phase can be modified.

  The present invention is intended to purify and reform pipes and dirt drainage ports where the inner surface of the drainage port is in contact with the liquid surface, water purification treatment and wastewater treatment in water treatment plants and water treatment equipment, etc. It can be used for deodorization, gas purifier, industrial production of gas, and the like.

100, 140 Mist generator 101, 104 Pulse power supply 102, 103, 142, 143 Electrode 105 Dielectric 401, 402 Electrode with one polarity A Air W Water AD Air discharge T1 Pulse rise time T2 Pulse fall time T3 Pulse period Vp -P Pulse voltage value

Claims (12)

Pulse power supply,
A pair of electrodes electrically connected to an end of the pulse power source;
One of the electrodes has a plurality of spaced apart ends,
Each of the plurality of ends is covered with a dielectric at least a part of the region;
Between each of the dielectrics and the other electrode,
Interposing a liquid so that the liquid surface is in contact with the dielectric,
A mist generating apparatus, wherein a pulse voltage is applied between the pair of electrodes. Pulse power supply,
A pair of electrodes electrically connected to an end of the pulse power source;
One of the electrodes has a plurality of electrodes having one polarity,
Each of the electrodes having one polarity is covered with a dielectric at least a part of the region,
Between each of the dielectrics and the other electrode,
Interposing a liquid so that the liquid surface is in contact with the dielectric,
A mist generating apparatus, wherein a pulse voltage is applied between the pair of electrodes. Pulse power supply,
A pair of electrodes electrically connected to an end of the pulse power source;
One of the electrodes has a plurality of spaced apart ends,
Each of the plurality of end portions and the other electrode is covered with a dielectric at least a part of the region,
Between each of the dielectrics,
Interposing a liquid so that the liquid surface is in contact with the dielectric,
Between the pair of electrodes,
A mist generating device characterized by applying a pulse voltage. Pulse power supply,
A pair of electrodes electrically connected to an end of the pulse power source;
One of the electrodes has a plurality of electrodes having one polarity,
Each of the electrodes having one polarity and the other electrode are covered with a dielectric at least a part of the region,
Between each of the dielectrics,
Interposing a liquid so that the liquid surface is in contact with the dielectric,
Between the pair of electrodes,
A mist generating device characterized by applying a pulse voltage. The mist generating device according to claim 3 or 4, wherein the other electrode has a plurality of ends. The mist generating device according to claim 3 or 4, wherein the other electrode is a plurality of electrodes having one polarity. Pulse power supply,
A pair of electrodes electrically connected to an end of the pulse power source;
One of the electrodes has a plurality of spaced apart ends,
Each of the plurality of ends is covered with a dielectric at least a part of the region;
Between each of the dielectrics and the other electrode,
Interposing a liquid so that the liquid surface is in contact with the dielectric,
A mist generation method, wherein a pulse voltage is applied between the pair of electrodes. Pulse power supply,
A pair of electrodes electrically connected to an end of the pulse power source;
One of the electrodes has a plurality of electrodes having one polarity,
Each of the electrodes having the one polarity is covered with a dielectric at least a part of the region,
Between each of the dielectrics and the other electrode,
Interposing a liquid so that the liquid surface is in contact with the dielectric,
A mist generation method, wherein a pulse voltage is applied between the pair of electrodes. Pulse power supply,
A pair of electrodes electrically connected to an end of the pulse power source;
One of the electrodes has a plurality of spaced apart ends,
Each of the plurality of end portions and the other electrode is covered with a dielectric at least a part of the region,
Between each of the dielectrics,
Interposing a liquid so that the liquid surface is in contact with the dielectric,
Between the pair of electrodes,
A method for generating mist, comprising applying a pulse voltage. Pulse power supply,
A pair of electrodes electrically connected to an end of the pulse power source;
One of the electrodes has a plurality of electrodes having one polarity,
Each of the electrodes having one polarity and the other electrode are covered with a dielectric at least a part of the region,
Between each of the dielectrics,
Interposing a liquid so that the liquid surface is in contact with the dielectric,
Between the pair of electrodes,
A method for generating mist, comprising applying a pulse voltage. The mist generating method according to claim 9 or 10, wherein the other electrode has a plurality of ends. The mist generation method according to claim 9 or 10, wherein the other electrode is a plurality of electrodes having one polarity.

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