WO2012011332A1 - プラズマ発生装置とラジカル生成方法、それらを用いた洗浄浄化装置および小型電器機器 - Google Patents
プラズマ発生装置とラジカル生成方法、それらを用いた洗浄浄化装置および小型電器機器 Download PDFInfo
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- WO2012011332A1 WO2012011332A1 PCT/JP2011/063455 JP2011063455W WO2012011332A1 WO 2012011332 A1 WO2012011332 A1 WO 2012011332A1 JP 2011063455 W JP2011063455 W JP 2011063455W WO 2012011332 A1 WO2012011332 A1 WO 2012011332A1
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- gas
- liquid
- storage unit
- electrode
- plasma
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D27/00—Shaving accessories
- A45D27/46—Devices specially adapted for cleaning or disinfecting shavers or razors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/04—Cleaning involving contact with liquid
- B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/10—Preparation of ozone
- C01B13/11—Preparation of ozone by electric discharge
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32082—Radio frequency generated discharge
- H01J37/32091—Radio frequency generated discharge the radio frequency energy being capacitively coupled to the plasma
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/46—Generating plasma using applied electromagnetic fields, e.g. high frequency or microwave energy
- H05H1/4645—Radiofrequency discharges
- H05H1/466—Radiofrequency discharges using capacitive coupling means, e.g. electrodes
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D27/00—Shaving accessories
- A45D27/46—Devices specially adapted for cleaning or disinfecting shavers or razors
- A45D27/48—Drying devices therefor
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2201/00—Preparation of ozone by electrical discharge
- C01B2201/60—Feed streams for electrical dischargers
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2201/00—Preparation of ozone by electrical discharge
- C01B2201/60—Feed streams for electrical dischargers
- C01B2201/64—Oxygen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
Definitions
- the present invention relates to a plasma generation apparatus and a radical generation method, a cleaning and purification apparatus using them, and a small-sized appliance.
- the liquid to be treated contains various impurities and the like, and the electric resistance value of the liquid largely fluctuates due to these components contained in the liquid. Therefore, in the method using the in-liquid discharge as in the above-mentioned prior art, even if a predetermined voltage is applied between the electrodes, the method of generating the discharge may vary, and plasma can be stably generated. could not. That is, in the above-mentioned prior art, there is a possibility that variation may occur in the generation amount of radicals and the like.
- an object of the present invention is to obtain a plasma generation device and a radical generation method which can generate radicals more stably, and a cleaning and purification device and a small-sized electric appliance using them.
- a liquid storage unit for storing a liquid containing water, a gas storage unit for storing a gas, and a gas passage for guiding the gas in the gas storage unit to the liquid storage unit are formed.
- a distance between the liquid containing part and the gas containing part, the first electrode disposed in the gas containing part, and the first electrode, and at least a pair with the first electrode A second electrode disposed in such a manner that a portion on the side of the liquid storage unit contacts the liquid in the liquid storage unit, and oxygen in a mode in which gas in the gas storage unit is pressure-fed to the liquid storage unit through the gas passage;
- Between the first electrode and the second electrode by applying a predetermined voltage between the gas supply unit for supplying the gas containing portion to the gas storage unit, and the first electrode and the second electrode to generate the gas introduced into the gas storage unit.
- a plasma power source unit for Zuma of, and key comprising: a.
- the liquid containing portion for containing the liquid containing water and the gas containing portion for containing the gas are separated by the partition portion in which the gas passage for permitting the flow of the gas is formed.
- Supplying an oxygen-containing gas to the gas storage unit in a mode of pressure-feeding the gas in the gas storage unit to the liquid storage unit via the gas passage; and an opening end of the gas passage on the liquid storage unit side Growing an oxygen-containing bubble in the liquid, and generating a hydroxy radical from oxygen contained in water and gas contained in the liquid by generating plasma in a region of the gas in the liquid in the liquid storage part;
- the cleaning and purifying apparatus includes the above-described plasma generator, is attached to the gas storage unit, and is attached to a gas introduction path for supplying a gas to the gas storage unit;
- a liquid introduction path for introducing a liquid into the liquid storage portion, a liquid discharge path for discharging the liquid in the liquid storage portion, and a gas from the gas introduction path supply the gas in the gas storage portion to the gas passage.
- the function of releasing bubbles containing a hydroxy radical into a liquid by being pumped to the liquid storage unit via the liquid storage unit.
- the small-sized appliance of the present invention is mainly characterized by including the above-mentioned plasma generator or the above-mentioned cleaning and purifying device.
- the first electrode is disposed in the gas storage unit, and at least a portion of the second electrode facing the first electrode is in contact with the liquid in the liquid storage unit. It is arranged in
- radical generation method of the present invention by generating a discharge between the first electrode and the second electrode, plasma is generated in the gas region in the liquid in the liquid storage unit, and the liquid is generated as the liquid. Hydroxy radicals are generated from oxygen contained in water and gas contained.
- the discharge can be generated between the first electrode and the second electrode without being greatly affected by the electric resistance of the liquid, the gas can be made into plasma more reliably. It becomes possible to generate radicals more stably.
- the cleaning and purifying device and the small-sized appliance can be obtained which can generate radicals more stably.
- FIG. 1 is a view including a partial cross section schematically showing a configuration of a plasma generation apparatus according to a first embodiment of the present invention.
- FIG. 2 is a graph showing voltage values applied to the first electrode and the second electrode of the plasma generator according to the first embodiment of the present invention.
- FIG. 3 is a partially enlarged cross-sectional view schematically showing one state for describing the operation of the plasma generating apparatus in accordance with the first embodiment of the present invention.
- FIG. 4 is a partial enlarged cross-sectional view schematically showing a state after the state shown in FIG.
- FIG. 5 is a view including a partial cross section schematically showing the structure of the cleaning and purifying apparatus according to the second embodiment of the present invention.
- FIG. 1 is a view including a partial cross section schematically showing a configuration of a plasma generation apparatus according to a first embodiment of the present invention.
- FIG. 2 is a graph showing voltage values applied to the first electrode and the second electrode of the plasma generator according to the first embodiment of the present invention.
- FIG. 6 is a perspective view showing a specific example of a small-sized appliance including the plasma generation apparatus according to the third embodiment of the present invention.
- 7 is a side cross-sectional view of the small-sized appliance shown in FIG.
- FIG. 8 is a cross-sectional view taken along line AA of FIG.
- FIG. 9 is a view including a partial cross section schematically showing a configuration of a plasma generation apparatus used in a small-sized appliance according to a modification of the third embodiment of the present invention.
- FIG. 10 is a side sectional view showing a small-sized appliance according to a modification of the third embodiment of the present invention.
- FIG. 11 is a cross-sectional view taken along a line BB in FIG.
- the plasma generator 1 includes a substantially cylindrical case member 2.
- the shape of the case member is not limited to the cylindrical shape, and may be, for example, a rectangular cylindrical shape.
- a ceramic member 3 is disposed inside the case member 2, and the internal space of the case member 2 is vertically divided by the ceramic member 3.
- the upper region of the ceramic member 3 in the internal space of the case member 2 is the liquid storage portion 4 for storing the liquid 17 containing water, and the lower region is a gas for storing gas. It is the accommodating part 5.
- the ceramic member 3 corresponds to a partition that separates the liquid storage portion 4 and the gas storage portion 5.
- a ring-shaped sealing material 6 for closing the gap between the case member 2 and the ceramic member 3 is attached to the outer peripheral end of the liquid storage portion 4, and the liquid 17 in the liquid storage portion 4 is attached to the case member 2. It does not leak into the gas storage unit 5 from the gap with the ceramic member 3.
- a liquid introduction port 7 for introducing the liquid 17 into the liquid storage portion 4 is provided in the top wall portion (wall portion on the liquid storage portion 4 side) 2 a of the case member 2, and is introduced into the liquid storage portion 4.
- a liquid outlet 8 for delivering the liquid 17 to the outside is provided.
- a gas introduction port 9 is provided at the lower part of the side wall 2b of the case member 2 for communicating the gas storage portion 5 with the outside, and a pipe (gas introduction path) 10 is inserted through the gas introduction port 9 ing.
- the gas storage unit 5 and the gas supply unit 11 are connected via the pipe 10.
- a gas containing at least oxygen (O 2) is supplied from the gas supply unit 11 into the gas storage unit 5.
- a gas passage 3 a is formed in the ceramic member 3, and the gas or the like introduced into the gas storage unit 5 from the gas supply unit 11 is sent out into the liquid storage unit 4 through the gas passage 3 a.
- the gas supply unit 11 supplies the gas containing at least oxygen to the gas storage unit 5 in a mode in which the gas of the gas storage unit 5 is pressure-fed to the liquid storage unit 4 via the gas passage 3a.
- the hole diameter of the gas passage 3a is about 1 ⁇ m to 10 ⁇ m, so that the liquid 17 contained in the liquid container 4 does not leak from the gas passage 3a into the gas container 5. ing.
- the plasma generation device 1 is separated from the first electrode 12 disposed in the gas storage unit 5 and the first electrode 12, and at least a portion on the side to be paired with the first electrode 12 (first electrode 12 And a second electrode 13 disposed to come into contact with the liquid 17 in the liquid storage unit 4).
- the doughnut-shaped first electrode 12 and the doughnut-shaped second electrode 13 are disposed in the gas storage unit 5 and the liquid storage unit 4, respectively.
- the doughnut-shaped first electrode 12 is disposed on the surface 3 b of the ceramic member 3 on the gas storage unit 5 side such that the center thereof is the gas passage 3 a.
- the surface of the first electrode 12 is covered with a dielectric (not shown).
- the second electrode 13 is in contact with the liquid 17 in the liquid storage portion 4 so that at least a portion on the side to be paired with the first electrode 12 (surface that causes a discharge to occur between the first electrode 12 and the surface).
- the second electrode 13 is also disposed such that the center thereof is the gas passage 3a. That is, the first electrode 12 and the second electrode 13 are arranged concentrically.
- the first electrode 12 is introduced into the liquid storage unit 4 by arranging the doughnut-shaped first electrode 12 in the gas storage unit 5. I try not to be in contact with
- the first electrode 12 and the second electrode 13 are electrically connected to the plasma power supply unit 15 (see FIG. 1) through the lead wires 14, respectively.
- the first electrode 12 and the second electrode 13 A predetermined voltage is applied in the meantime.
- a predetermined voltage is applied between the first electrode 12 and the second electrode 13 in a state where the second electrode 13 is grounded.
- a gas containing oxygen is supplied to the gas storage unit 5 in a mode in which the gas of the gas storage unit 5 is pressure-fed to the liquid storage unit 4 through the gas passage 3a (a step of supplying the gas).
- a gas containing oxygen based on air (flow rate of about 0.01 L / min to 1.0 L / min (10 cc / min to 1000 cc / min)) 11 is fed to the gas storage unit 5 through the pipe 10.
- the pressure for feeding the gas is about 0.0098 MPa to 0.49 MPa (0.1 kgf / cm 2 to 5 kgf / cm 2).
- the gas supply unit 11 has a function of supplying a gas (air) in the atmosphere.
- the gas supply flow rate is controlled by a flow rate control unit provided in the gas supply unit 11.
- the gas supply unit 11 has a function capable of supplying not only gases in the atmosphere but also other types of gases (for example, gases having different oxygen concentrations), and an air type control unit is provided.
- gases for example, gases having different oxygen concentrations
- an air type control unit is provided.
- One or more kinds of gases may be selectively supplied.
- the pressure of the gas storage unit 5 is approximately 0.11 MPa to 0.59 MPa (1.1 kgf / cm2 to 6 kgf / cm2) because the pressure of the gas storage unit 5 is approximately atmospheric pressure. And become positive pressure. As described above, by setting the gas storage unit 5 to a positive pressure, a flow of gas from the gas storage unit 5 to the liquid storage unit 4 via the gas passage 3 a is formed. The positive pressure of the gas storage unit 5 also suppresses leakage of the liquid 17 stored in the liquid storage unit 4 from the gas passage 3 a into the gas storage unit 5.
- a predetermined voltage is applied to the first electrode 12 and the second electrode 13 by the plasma power supply unit 15.
- a voltage power: about 10 W to about 100 W
- a plasma is generated by generating a potential difference in the gas in the bubble 16 (the gas in the vicinity of the gas-liquid interface in the liquid 17 of the liquid storage unit 4).
- a potential difference in the vicinity of the gas-liquid interface where the hydroxyl radical is likely to be generated near the open end 3c of the gas passage 3a facing the liquid 17
- more ozone, hydroxy radical, etc. can be generated become.
- the bubbles 16 in the vicinity of the open end 3c of the gas passage 3a facing the liquid 17 not only the bubbles 16 in the vicinity of the open end 3c of the gas passage 3a facing the liquid 17 but also the bubbles 16 delivered to the liquid storage unit 4 can generate ozone, hydroxy radicals and the like.
- the ozone, the hydroxy radical and the like generated in this manner are sent to the liquid storage unit 4 along with the flow of the gas described above.
- the bubbles 16 containing hydroxy radicals and the like are sheared from the ceramic member (partition wall) 3 and released into the liquid 17 by the flow of the liquid 17 in the liquid container 4 (bubble releasing step) .
- the flow of the liquid 17 (see the arrow 18 in FIGS. 3 and 4) is generated by the introduction of the liquid 17. As shown in FIG. 4, when the liquid 17 flowing in the direction of the arrow 18 hits the growing bubble 16, the flow of the liquid 17 acts on the bubble 16 as a shear force, and the bubble 16 is released from the open end 3c into the liquid 17.
- the bubbles 16 released into the liquid 17 are fine bubbles, they are diffused to the corners of the liquid 17 without being immediately released into the atmosphere. Then, a part of the diffused fine bubbles 16 is easily dissolved in the liquid 17. At this time, the ozone contained in the bubble 16 dissolves in the liquid 17, so that the ozone concentration of the liquid is rapidly increased.
- hydroxy radicals and the like have relatively large energy of about 120 kcal / mol.
- disassembly of such an organic substance etc. do not have persistence like a chlorine etc., and are lose
- the first electrode 12 is disposed in the gas storage unit 5, and the second electrode 13 is at least paired with the first electrode 12. (The surface that generates a discharge with the surface of the first electrode 12) is disposed in contact with the liquid in the liquid storage unit 4.
- the discharge can be generated between the first electrode 12 and the second electrode 13 without being greatly affected by the electric resistance of the liquid 17, the gas can be more reliably plasmad. It becomes possible to produce ozone, radicals, etc. in large quantities more stably.
- a predetermined voltage is applied between the first electrode 12 and the second electrode 13 in a state where the second electrode 13 is grounded. Therefore, even if the user or the like accidentally touches the liquid or the second electrode, the user or the like can be prevented from receiving an electric shock.
- the safety can be further enhanced.
- the liquid 17 is introduced into the liquid storage unit 4, and the first electrode 12 that generates plasma in the gas storage unit 5 defined by the ceramic member 3 is disposed. Therefore, the first electrode 12 does not contact the liquid 17 at all, and is not affected by the electric resistance of the liquid 17. Thereby, a discharge can be stably generated between the first electrode 12 and the second electrode 13, and the gas containing oxygen introduced into the gas storage unit 5 is surely plasmified, and water and oxygen are generated. Thus, ozone or hydroxy radicals can be stably generated.
- the gas containing portion 5 is made positive pressure by introducing the gas containing oxygen into the gas containing portion 5, and the gas from the gas containing portion 5 to the liquid containing portion 4 via the gas passage 3 a Forming a flow. Then, ozone, hydroxy radicals and the like are generated in the bubbles 16 growing at the open end 3 c facing the liquid 17 of the gas passage 3 a in accordance with the flow of the gas. Then, the bubble 16 grown to a predetermined size is sheared by the flow of the liquid 17 and released into the liquid 17.
- ozone, a hydroxy radical, and the like are generated in the gas in the bubble 16 (the gas near the gas-liquid interface in the liquid 17 of the liquid storage unit 4). Then, a gas containing ozone, a hydroxy radical or the like is diffused into the liquid 17 as fine bubbles 16. As a result, after ozone and various radicals are generated, the ozone and various radicals can be efficiently sent into the liquid 17 in a very short time before these disappear.
- the fine bubbles 16 containing ozone and various radicals diffuse into the liquid 17, whereby the ozone concentration of the liquid 17 is increased, and the bubbles 16 are adsorbed to the organic substance or the like contained in the liquid 17.
- organic matter, bacteria and the like can be efficiently decomposed by ozone dissolved in the liquid 17 and various radicals contained in the adsorbed bubbles 16.
- the size of the main body portion of the plasma generator 1 excluding the plasma power supply unit 15 and the gas supply unit 11 can be made compact. can do. As a result, it can be easily incorporated into an existing device. Also, even when newly mounted on the device, the occupied space can be minimized.
- the plasma power supply unit 15 includes a voltage control unit that controls the voltage applied between the first electrode 12 and the second electrode 13, the liquid 17 may be interposed between the first electrode 12 and the second electrode 13. Therefore, the discharge can be stably generated regardless of the fluctuation of the electric resistance of the
- the gas supply unit 11 includes an air type control unit that controls the type of gas, it is possible to adjust the generation amount of ozone, hydroxy radical, and the like.
- the gas supply unit 11 has a function of supplying air in the atmosphere, the gas can be more easily supplied.
- the cleaning and purifying apparatus 20 includes the above-described plasma generating apparatus 1 as shown in FIG. Then, in the cleaning and purifying apparatus 20 according to the present embodiment, the liquid 17 whose processing has been completed is introduced from the object-to-be-cleaned unit 30 to the liquid storage unit 4 into the liquid introduction port 7 of the case member 2 that accommodates the ceramic member 3.
- a pipe (liquid introduction path) 21 is connected.
- a pipe (liquid discharge path) 22 for sending the liquid in the liquid storage unit 4 to the to-be-cleaned processing unit 30 is connected to the liquid discharge port 8.
- a gas of a predetermined flow rate containing air as a base and containing oxygen is fed from the gas supply unit 11 into the gas storage unit 5 through the pipe (gas introduction passage) 10. Then, the gas containing portion 5 is brought into a positive pressure state, and a flow of gas from the gas containing portion 5 to the liquid containing portion 4 via the gas passage 3 a is formed.
- the liquid 17 whose processing has been completed from the to-be-cleaned processing unit 30 is introduced from the pipe (liquid introduction passage) 21 to the liquid storage unit 4 through the liquid introduction port 7.
- the fine bubbles 16 released into the liquid diffuse to every corner of the liquid. At this time, a part of the diffused fine bubbles 16 is easily dissolved in the liquid 17 together with the ozone, the hydroxyl radical, etc. contained in the bubbles 16, and the ozone concentration rises. Further, some of the bubbles 16 easily adsorb to the organic matter or the like contained in the liquid 17 in the state of containing ozone, hydroxy radicals and the like. Furthermore, a minute organic substance is adsorbed to a part of the bubble 16.
- the organic matter or the like in the liquid 17 is efficiently decomposed by ozone or radicals dissolved in the liquid 17, ozone or radicals contained in the bubbles 16 adsorbed on the organic matter or the like. Then, the liquid 17 in which the organic matter or the like is decomposed and purified is returned from the liquid discharge port 8 to the to-be-cleaned processing unit 30 through the pipe (liquid discharge path) 22 and used again.
- usage aspect A which wash
- cleaning purification apparatus 20 the liquid 17 which diffused the fine bubble besides this was illustrated.
- the cleaning and purifying apparatus 20 operates as follows.
- the fine bubbles 16 including ozone and hydroxy radicals are diffused, and the ozone and radicals contained in the fine bubbles 16 are dissolved. At this time, a minute organic substance is adsorbed to a part of the bubble 16.
- the liquid 17 is supplied to the portion to be cleaned 30 as a cleaning liquid.
- organic substances and the like are efficiently decomposed by ozone or radicals dissolved in the liquid 17 and ozone or radicals contained in the bubbles 16 adsorbed to the organic substances and the like.
- the cleaning and purifying apparatus can be applied to purification of various liquids such as hot water, rain water, sewage, and sewage stored in a bath.
- the cleaning and purifying apparatus can be used as a washing
- the present invention can be widely applied to industries such as cleaning of food and cleaning in manufacturing processes of industrial products.
- the cleaning and purifying apparatus 20 is provided with the above-described plasma generator 1. Therefore, it is possible to obtain a cleaning and purifying apparatus capable of more stably generating radicals.
- the cleaning and purifying apparatus 40 as a small-sized appliance shown in FIGS. 6 to 8 is for cleaning the head portion 51 of the electric shaver 50 which is a kind of hair removing device. That is, the cleaning and purifying apparatus 40 is a cleaning and purifying apparatus used as the usage mode B described above. In this case, the head 51 of the electric razor 50 corresponds to the cleaning target 30.
- the cleaning and purifying apparatus 40 has a housing 41 having an opening 41a for inserting the electric razor 50 with the head 51 facing downward, and the head 51 inserted through the opening 41a. And a receiving tray 42.
- the cleaning and purifying apparatus 40 further includes a tank 43 for storing liquid, an overflow portion 44 communicated with the receiving tray 42, and a pump 45 for circulating and supplying the liquid in the tank 43 to the liquid inlet 7. Furthermore, a cartridge 46 having a filter 46a for filtering the liquid, an on-off valve 47 for controlling the airtight state in the tank 43, and a circulation path for circulating the liquid are provided.
- the circulation path includes a pipe (liquid introduction path) 21 for guiding the liquid stored in the tank 43 to the liquid inlet 7, and a pipe (liquid discharge path) 22 for receiving the liquid discharged from the liquid outlet 8 to the pan 42.
- the path 23 discharge path for guiding the liquid discharged from the tray 42 to the cartridge 46, the path 24 for guiding the liquid discharged from the overflow portion 44 to the cartridge 46, and the liquid discharged from the cartridge 46 to the pump 45 It comprises a path 25 and a path 26 for leading the liquid delivered from the pump 45 to the tank 43.
- an open / close valve 47 is connected to the tank 43 via an airtight path 27.
- the housing 41 has a stand portion 41b at its rear portion to be in contact with the grip portion 52 of the electric razor 50, and holds the electric razor 50 inserted from the opening 41a together with the receiving tray 42.
- a contact member 41c for detecting that the electric razor 50 is attached to the cleaning and purifying device 40 is provided on the front surface of the stand portion 41b.
- the contact member 41c detects the attachment of the electric shaver 50 by contact with the terminal 52a provided on the rear surface of the grip 52.
- Various control signals and drive powers are sent to the electric shaver 50 along with such detection function. Has a function to output
- a fan 48 for drying the head portion 51 after cleaning is accommodated.
- a ventilation window 41d for the fan 48 On the front surface of the housing 41, a ventilation window 41d for the fan 48, an operation button 41e for performing a cleaning operation, a lamp 41f for displaying an operation state, and the like are provided.
- the rear surface side of the housing 41 is a mounting portion for mounting the tank 43, and has connection ports 41g, 41h, 41i connected to the ports 43a, 43b, 43c of the tank 43.
- the connection port 41 g is connected to the pipe (liquid introduction path) 21, the connection port 41 h is connected to the path 26, and the connection port 41 i is connected to the airtight path 27.
- the receiving tray 42 has a concave shape that follows the shape of the head portion 51, and the plasma generator 1 is provided on the back side of the bottom wall portion.
- the cleaning and purifying apparatus 40 may be provided with a position adjusting unit for adjusting the position of the plasma generator 1.
- the arm portion is provided on the back side of the bottom wall portion, and the plasma generation device 1 is swingably attached by the arm portion so that the position adjustment portion can adjust so that the plasma generation device 1 is disposed horizontally. It is possible. By so doing, the plasma generator 1 can be always arranged horizontally, and plasma can be generated more stably.
- the plasma generator 1 includes a liquid inlet 7 connected to a pipe (liquid introduction path) 21 and a liquid outlet 8 connected to a pipe (liquid discharge path) 22.
- the bottom wall of the tray 42 is provided with a supply port 41 j connected to the pipe (liquid discharge path) 22 and a discharge port 41 k connected to the path 23.
- a heater 49 is provided on the bottom wall rear side of the tray 42 (see FIG. 8). The heater 49 dries the head unit 51 in conjunction with the fan 48.
- the overflow part 44 is provided ahead of the saucer 42, and the saucer 42 and the overflow part 44 are integrally formed in this embodiment.
- the inlet of the overflow portion 44 is in communication with the receptacle 42 and the outlet is in communication with the passage 24.
- the path 24 leads from the outlet of the overflow portion 44 to the cartridge 46 through a relay port 42 a provided at the rear of the tray 42.
- the tank 43 has a discharge port 43a, an inflow port 43b, and a vent 43c for opening the airtight state on the front surface, and the liquid discharge from the discharge port 43a is controlled by opening and closing the vent 43c. .
- the tank 43 is detachably provided on the rear surface side of the housing 41, and in the state of attachment to the housing 41, the discharge port 43a is connected to the connection port 41g, and the liquid (plasma introduction path) 21 of the plasma generator 1 It is connected to the inlet 7 and the inlet 43b is connected to the connection port 41h and connected to the delivery port 45a of the pump 45 by the path 26 and the vent 43c is connected to the connection port 41i and the on-off valve 47 by the airtight path 27. It is connected.
- the cartridge 46 is a substantially box-like body in which the filter 46a is housed, and has an inlet 46b at the top and an outlet 46c at the front.
- the cartridge 46 is detachably provided at the lower rear of the housing 41, and in the case of the mounted body to the housing 41, the inflow port 46b is connected to the discharge port 41k by the path 23 (discharge path) It is connected to the outlet of the overflow portion 44 by 24.
- the outlet 46 c is connected to the suction port 45 b of the pump 45 by the path 25.
- the cleaning liquid generated by diffusing the fine bubbles 16 containing ozone, hydroxy radicals, etc. into the liquid introduced from the tank 43 to the plasma generator 1 is supplied from the supply port 41 j into the receptacle 42. It will be supplied. That is, the generated cleaning liquid is supplied to the head unit 51 as the cleaning target unit 30. Then, the organic matter or the like attached to the head portion 51 can be efficiently decomposed by the ozone or the radical dissolved in the liquid (cleaning liquid), the ozone or the radical contained in the bubble 16 or the like.
- the cleaning and purifying apparatus (small electric device) 40 is provided with the above-described plasma generator 1. Therefore, the small-sized electric appliance which can generate
- the cleaning and purifying apparatus 40A as a small-sized appliance is also for cleaning the head portion 51 of the electric shaver 50, which is a type of hair removing apparatus, and the use mode B described above It is a cleaning and purifying device used as
- the cleaning and purifying apparatus 40A has substantially the same structure as that of the third embodiment, and is inserted through the opening 41a through a case 41 having an opening 41a for inserting the electric razor 50 with the head portion 51 facing downward. And a receptacle 42 for receiving the head 51 (see FIG. 10).
- the cleaning and purifying apparatus 40A further includes a tank 43 for storing liquid, an overflow portion 44 in communication with the receiving tray 42, and a pump 45 for circulating and supplying the liquid in the tank 43 to the liquid inlet 7. Furthermore, a cartridge 46 having a filter 46a for filtering the liquid, an on-off valve 47 for controlling the airtight state in the tank 43, and a circulation path for circulating the liquid are provided.
- the circulation path is a pipe (liquid introduction path) 21 for introducing the liquid stored in the tank 43 into the receiving tray 42, and a path 23 (liquid discharging path) for guiding the liquid discharged from the receiving pan 42 to the cartridge 46
- the receiving tray 42 has a concave shape that follows the shape of the head portion 51, and a through hole 42b is formed in the bottom wall portion (see FIGS. 10 and 11). And, the plasma generator 1A is provided on the back side of the bottom wall so that the liquid storage portion 4 communicates with the internal space of the receiving tray 42 through the through hole 42b.
- the plasma generator 1A basically has the same configuration as the plasma generator 1 of the first embodiment. That is, the plasma generating apparatus 1A includes the case member 2, and the space of the case member 2 is vertically divided by the ceramic member (partition wall portion) 3 disposed inside the case member 2.
- a ring-shaped sealing material 6 for closing the gap between the case member 2 and the ceramic member 3 is attached to the outer peripheral end of the liquid storage portion 4, and the liquid 17 in the liquid storage portion 4 is attached to the case member 2. It does not leak into the gas storage unit 5 from the gap with the ceramic member 3.
- the liquid storage unit 4 is not configured to supply the liquid 17 in the liquid storage unit 4 to the internal space of the receiving tray 42 via the pipe (liquid discharge path) 22.
- the plasma generating apparatus 1A is provided to communicate with the above, and the internal space of the pan 42 also functions as the liquid storage unit 4 of the plasma generation apparatus 1A (the internal space of the pan 42 also serves as the liquid storage section of the plasma generation apparatus).
- the configuration is different from that of the third embodiment.
- the cleaning and purifying apparatus 40A as a small-sized electric appliance includes a liquid storage unit (a liquid storage unit 4 and an internal space of the receiving tray 42) for storing a liquid containing water and a gas storage unit 5 for storing a gas. And a gas passage for guiding the gas in the gas storage unit 5 to the liquid storage unit (the internal space of the liquid storage unit 4 and the receiving tray 42), and the liquid storage unit (the internal space of the liquid storage unit 4 and the receiving tray 42)
- the plasma generator 1 ⁇ / b> A is provided with a partition 3 that separates from the housing 5.
- the liquid storage unit (liquid storage unit 4 and the liquid storage unit that stores the liquid containing water)
- the internal space of the receiving tray 42 and the gas storage unit 5 are provided, and the liquid storage unit (the internal space of the liquid storage unit 4 and the receiving tray 42) and the gas storage unit 5 are defined by the partition 3 It will be.
- the second electrode 13 does not have to be disposed in the liquid storage unit 4 of the plasma generation device 1A as in the present modification, and may be disposed in the internal space of the pan 42.
- the liquid in the liquid storage unit 4 can be more smoothly discharged from the passage 23 (liquid discharge passage) by forming, for example, a drainage groove or the like in the tray 42.
- the pipe 21 corresponds to the liquid introduction path of the cleaning and purifying device
- the path 23 corresponds to the liquid discharge path of the cleaning and purifying device
- a liquid is introduced from the tank 43 through the pipe (liquid introduction path) 21 into the pan 42 and the liquid storage portion 4 of the plasma generator 1A.
- a gas of a predetermined flow rate containing air as a base and containing oxygen is fed into the gas storage unit 5 from the gas supply unit 11 through the pipe (gas introduction passage) 10, and the gas storage unit 5 is brought into a positive pressure state.
- a flow of gas from the gas storage unit 5 to the liquid storage unit 4 via the gas passage 3a is formed.
- generated ozone and various radicals will be sent out in the liquid stored in the liquid accommodating part 4 and the receiving tray 42 with the flow of the gas mentioned above.
- the growing bubbles are released from the open end 3c into the liquid as fine bubbles 16, and the fine bubbles 16 released into the liquid diffuse to every corner of the liquid. That is, the generated cleaning liquid is supplied to the head unit 51 as the cleaning target unit 30.
- the organic matter or the like attached to the head portion 51 can be efficiently decomposed by the ozone or the radical dissolved in the liquid (cleaning liquid), the ozone or the radical contained in the bubble 16 or the like.
- the growing bubbles may be sheared by the flow of the liquid in the liquid storage unit 4 formed by circulating the liquid and released into the liquid, or when passing through the minute gas passage 3a
- the bubble 16 may be released into the liquid by utilizing the phenomenon in which the bubble is formed.
- the user or the like may accidentally mistake the liquid 17 or the second electrode. Even when 13 is touched, the user or the like can be prevented from receiving an electric shock, and the safety can be further enhanced.
- the ceramic member is illustrated as the partition portion in which the gas passage is formed, but the material of the partition portion is not limited to the ceramic member.
- this member may be subjected to photoengraving and etching to form micropores having a pore diameter of about 1 ⁇ m to about 10 ⁇ m. It is possible.
- a plurality of gas passages may be provided in the partition wall.
- the cleaning and purifying apparatus and the small-sized electric appliance are not limited to those described in the above embodiment, but, for example, an apparatus and the like for purifying water including cleaning and purifying apparatus for electric toothbrush and water purifier and detergent etc. It is possible to apply the invention.
- the specifications (shape, size, layout, etc.) of the liquid storage unit, the gas storage unit, and other details can be appropriately changed.
- a plasma generating apparatus capable of generating radicals more stably, a radical generating method, a cleaning and purifying apparatus using them, and a compact electronic device.
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- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
Description
本実施形態にかかるプラズマ発生装置1は、略円筒状のケース部材2を備えている。なお、ケース部材の形状は円筒状のものに限らず、例えば、角筒状としてもよい。
本実施形態では、プラズマ発生装置1を用いた洗浄浄化装置の一例について説明する。
本実施形態では、プラズマ発生装置1を用いた小型電器機器の一例について、図6~8を参照して説明する。以下では、除毛装置としての電気かみそりのヘッド部を洗浄する洗浄浄化装置を例示する。
本変形例にかかる小型電器機器としての洗浄浄化装置40Aも、上記第3実施形態と同様、除毛装置の一種である電気かみそり50のヘッド部51を洗浄するものであり、上述した使用態様Bとして使用する洗浄浄化装置である。
Claims (16)
- 水を含む液体を収容する液体収容部と、
気体を収容する気体収容部と、
前記気体収容部中の気体を前記液体収容部へ導く気体通路が形成され、前記液体収容部と前記気体収容部とを隔てる隔壁部と、
前記気体収容部に配設された第1電極と、
前記第1電極と距離を隔てられ、少なくとも前記第1電極と対になる側の部分が前記液体収容部中の液体と接触するように配設された第2電極と、
前記気体収容部の気体を前記気体通路を介して前記液体収容部へ圧送させる態様で、酸素を含む気体を前記気体収容部に供給する気体供給部と、
前記第1電極と前記第2電極との間に所定の電圧を印加して前記第1電極と前記第2電極との間に放電を発生させることにより、前記気体収容部に導入された気体をプラズマ化するプラズマ電源部と、
を備えることを特徴とするプラズマ発生装置。 - 前記プラズマ電源部は、前記第1電極と前記第2電極との間に印加する電圧を制御する電圧制御部を備えることを特徴とする請求項1に記載のプラズマ発生装置。
- 前記気体供給部は、気体の種類を制御する気種制御部を備えることを特徴とする請求項1または請求項2に記載のプラズマ発生装置。
- 前記気体供給部は、大気中の気体を供給する機能を有することを特徴とする請求項1~3のうちいずれか1項に記載のプラズマ発生装置。
- 前記気体供給部は、気体の流量を制御する流量制御部を備えることを特徴とする請求項1~4のうちいずれか1項に記載のプラズマ発生装置。
- 水を含む液体を収容する液体収容部と気体を収容する気体収容部とを、気体の流通を許容する気体通路が形成された隔壁部によって隔て、前記気体収容部の気体を前記気体通路を介して前記液体収容部へ圧送させる態様で酸素を含む気体を前記気体収容部に供給する工程と、
前記気体通路の前記液体収容部側の開口端において酸素を含む気泡を成長させる工程と、
前記液体収容部の液体内における気体の領域においてプラズマを生成することにより、液体に含まれる水および気体に含まれる酸素からヒドロキシラジカルを生成する工程と、
を備えることを特徴とするラジカル生成方法。 - 前記液体収容部内の液体の流れにより、前記ヒドロキシラジカルを含んだ気泡を前記隔壁部からせん断して液体中に放出する工程と、
を備えることを特徴とする請求項6に記載のラジカル生成方法。 - 前記気体を供給する工程では、気種制御部により制御された気体が前記気体収容部に供給されることを特徴とする請求項6または請求項7に記載のラジカル生成方法。
- 前記気体を供給する工程では、大気中の空気が前記気体収容部に供給されることを特徴とする請求項6~8のうちいずれか1項に記載のラジカル生成方法。
- 前記気体を供給する工程では、前記気体収容部に供給される気体は、流量制御部によって流量が制御されていることを特徴とする請求項6~9のうちいずれか1項に記載のラジカル生成方法。
- 前記ヒドロキシラジカルを生成する工程では、電圧制御部により制御された電圧を1対の対向電極間に印加することで前記プラズマを生成していることを特徴とする請求項6~10のうちいずれか1項に記載のラジカル生成方法。
- 請求項1~5のうちいずれか1項に記載のプラズマ発生装置を備える洗浄化装置であって、
前記気体収容部に取付けられ、前記気体収容部に気体を供給する気体導入路と、
前記液体収容部に取付けられ、前記液体収容部に液体を導入する液体導入路および前記液体収容部の液体を排出する液体排出路と、
前記気体導入路から気体を供給することにより、前記気体収容部内の気体を前記気体通路を介して前記液体収容部へ圧送させて、ヒドロキシラジカルを含んだ気泡を液体中に放出する機能と、
を備えることを特徴とする洗浄浄化装置。 - 前記液体収容部が、導入された液体を前記気泡に含まれるヒドロキシラジカルにより浄化する液体浄化部であることを特徴とする請求項12に記載の洗浄浄化装置。
- 前記液体収容部が、ヒドロキシラジカルを含んだ気泡を液体内に放出することで洗浄液を生成する洗浄液生成部であることを特徴とする請求項12に記載の洗浄浄化装置。
- 前記プラズマ発生装置の位置を調整する位置調整部を備えることを特徴とする請求項12~14のうちいずれか1項に記載の洗浄浄化装置。
- 請求項1~5のうちいずれか1項に記載のプラズマ発生装置もしくは請求項12~15のうちいずれか1項に記載の洗浄浄化装置を備えることを特徴とする小型電器機器。
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CN201180032218.XA CN102960073B (zh) | 2010-07-21 | 2011-06-13 | 等离子体发生装置和自由基生成方法、使用了该装置和方法的清洗净化装置以及小型电器设备 |
EP11809506.6A EP2597938A4 (en) | 2010-07-21 | 2011-06-13 | PLASMA GENERATING DEVICE AND METHOD FOR THE PRODUCTION OF RADICALS AND WASHING AND CLEANING DEVICE AND ELECTRICAL APPLICATION THEREWITH |
RU2012157826/07A RU2012157826A (ru) | 2010-07-21 | 2011-06-13 | Плазменный генератор и способ получения радикала, а также очистительное устройство и малогабаритный электрический прибор с его использованием |
US13/807,621 US9119284B2 (en) | 2010-07-21 | 2011-06-13 | Plasma generator and method for producing radical, and cleaning and purifying apparatus and small-sized electrical appliance using the same |
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US9540262B2 (en) | 2011-05-17 | 2017-01-10 | Panasonic Intellectual Property Management Co., Ltd. | Plasma generating apparatus and plasma generating method |
WO2014017020A1 (ja) * | 2012-07-24 | 2014-01-30 | パナソニック株式会社 | 液体処理装置及び液体処理方法 |
JP2015033694A (ja) * | 2012-07-24 | 2015-02-19 | パナソニックIpマネジメント株式会社 | 液体処理装置及び液体処理方法 |
JP5796174B2 (ja) * | 2012-07-24 | 2015-10-21 | パナソニックIpマネジメント株式会社 | 液体処理装置及び液体処理方法 |
JPWO2014017020A1 (ja) * | 2012-07-24 | 2016-07-07 | パナソニックIpマネジメント株式会社 | 液体処理装置及び液体処理方法 |
US9688549B2 (en) | 2012-07-24 | 2017-06-27 | Panasonic Intellectual Property Management Co., Ltd. | Liquid treatment device and liquid treatment method |
WO2014171138A1 (ja) * | 2013-04-18 | 2014-10-23 | パナソニック株式会社 | 液体処理装置及び液体処理方法 |
US9814127B2 (en) | 2013-04-18 | 2017-11-07 | Panasonic Intellectual Property Management Co., Ltd. | Liquid treatment device and liquid treatment method |
WO2016152745A1 (ja) * | 2015-03-20 | 2016-09-29 | 日本碍子株式会社 | 水処理装置、水処理方法、殺菌水生成装置及び殺菌水生成方法 |
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EP2597938A1 (en) | 2013-05-29 |
US9119284B2 (en) | 2015-08-25 |
JP2012043769A (ja) | 2012-03-01 |
JP5870279B2 (ja) | 2016-02-24 |
CN102960073A (zh) | 2013-03-06 |
CN102960073B (zh) | 2015-05-20 |
US20130098753A1 (en) | 2013-04-25 |
EP2597938A4 (en) | 2014-10-29 |
RU2012157826A (ru) | 2014-08-27 |
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